From 3c2d6542dce30f2f9a3fabc7b065a3ff70c5986c Mon Sep 17 00:00:00 2001 From: aashna27 Date: Thu, 24 Jan 2019 03:38:53 +0530 Subject: [PATCH] Added second spinner (#691) --- dist/image-sequencer-ui.js | 8 +- dist/image-sequencer-ui.min.js | 2 +- dist/image-sequencer.js | 30226 ++++++++++++++-------------- dist/image-sequencer.min.js | 2 +- examples/demo.css | 5 + examples/lib/defaultHtmlStepUi.js | 8 +- 6 files changed, 15025 insertions(+), 15226 deletions(-) diff --git a/dist/image-sequencer-ui.js b/dist/image-sequencer-ui.js index 8791ccb0..ac525f91 100644 --- a/dist/image-sequencer-ui.js +++ b/dist/image-sequencer-ui.js @@ -372,7 +372,8 @@ function DefaultHtmlStepUi(_sequencer, options) {
\

\ ' +step.name + ' ' + - '

"'+ + '' + + '

"'+ (step.description || "") + '

\
\ @@ -563,11 +564,16 @@ function DefaultHtmlStepUi(_sequencer, options) { function onDraw(step) { $(step.ui.querySelector(".load")).show(); $(step.ui.querySelector("img")).hide(); + if( $(step.ui.querySelector(".toggleIcon")).hasClass("fa-caret-down") ) + { + $(step.ui.querySelector(".load-spin")).show(); + } } function onComplete(step) { $(step.ui.querySelector(".load")).hide(); $(step.ui.querySelector("img")).show(); + $(step.ui.querySelector(".load-spin")).hide(); step.imgElement.src = step.output; var imgthumbnail = step.ui.querySelector(".img-thumbnail"); diff --git a/dist/image-sequencer-ui.min.js b/dist/image-sequencer-ui.min.js index 4fabe6b1..3b3a70ad 100644 --- a/dist/image-sequencer-ui.min.js +++ b/dist/image-sequencer-ui.min.js @@ -1 +1 @@ -!function(){return function e(t,n,a){function i(r,o){if(!n[r]){if(!t[r]){var l="function"==typeof require&&require;if(!o&&l)return l(r,!0);if(s)return s(r,!0);var c=new Error("Cannot find module '"+r+"'");throw c.code="MODULE_NOT_FOUND",c}var d=n[r]={exports:{}};t[r][0].call(d.exports,function(e){return i(t[r][1][e]||e)},d,d.exports,e,t,n,a)}return n[r].exports}for(var s="function"==typeof require&&require,r=0;r'+e[n].name+"");t.append('')}sequencer=ImageSequencer(),e(),$(window).on("scroll",function(){var e=$("body").scrollTop()>20||$(":root").scrollTop()>20;$("#move-up").css({display:e?"block":"none"})}),$("#move-up").on("click",function(){$("body").animate({scrollTop:0}),$(":root").animate({scrollTop:0})}),sequencer.setUI(s(sequencer));var t=a(sequencer);r.getUrlHashParameter("src")?sequencer.loadImage(r.getUrlHashParameter("src"),t.onLoad):sequencer.loadImage("images/tulips.png",t.onLoad);$("#addStep select").on("change",t.selectNewStepUi),$("#addStep #add-step-btn").on("click",t.addStepUi),$("#resetButton").on("click",function(){confirm("Do you want to reset the sequence?")&&(window.location="/")}),$(".radio-group .radio").on("click",function(){$(this).parent().find(".radio").removeClass("selected"),$(this).addClass("selected"),newStep=$(this).attr("data-value"),$("#addStep select").val(newStep),t.selectNewStepUi(),t.addStepUi(),$(this).removeClass("selected")}),$("#download-btn").click(function(){return $(".step-thumbnail:last()").trigger("click"),!1}),$("body").on("click","button.remove",t.removeStepUi),$("#save-seq").click(()=>{var t=window.prompt("Please give a name to your sequence... (Saved sequence will only be available in this browser).");t&&(t+=" (local)",sequencer.saveSequence(t,sequencer.toString()),sequencer.loadModules(),$(".savesequencemsg").fadeIn(),setTimeout(function(){$(".savesequencemsg").fadeOut()},1e3),e())});var n=!1;$(".js-view-as-gif").on("click",function(e){if(!n){n=!0;var t=e.target;t.disabled=!0;try{for(var a=document.getElementsByClassName("step-thumbnail"),i=[],s=0;s{console.log(t),"installed"===t.state&&location.reload()}),console.log("Registration successful, scope is:",e.scope)}).catch(function(e){console.log("Service worker registration failed, error:",e)}),"serviceWorker"in navigator&&caches.keys().then(function(e){e.forEach(function(e){$("#clear-cache").append(" "+e)})}),$("#clear-cache").click(function(){"serviceWorker"in navigator&&caches.keys().then(function(e){e.forEach(function(e){caches.delete(e)})}),location.reload()})}},{}],3:[function(e,t,n){var a=e("./urlHash.js");t.exports=function(e,t){var n=(t=t||{}).addStepSel=t.addStepSel||"#addStep",i=t.removeStepSel=t.removeStepSel||"button.remove";function s(){var t=a.getUrlHashParameter("steps");t&&(e.importString(t),e.run({index:0})),a.setUrlHashParameter("steps",sequencer.toString())}function r(){sequencer.images.image1.steps.length<2?$(" #save-seq").prop("disabled",!0):$(" #save-seq").prop("disabled",!1)}return t.selectStepSel=t.selectStepSel||"#selectStep",{onLoad:function(){s(),$("#selectStep").val()||$(n+" #add-step-btn").prop("disabled",!0),r()},importStepsFromUrlHash:s,selectNewStepUi:function(){var t=$(n+" select").val();$(n+" .info").html(e.modulesInfo(t).description),$(n+" #add-step-btn").prop("disabled",!1)},removeStepUi:function(){var e=$(i).index(this)+1;sequencer.removeSteps(e).run({index:e-1}),a.setUrlHashParameter("steps",sequencer.toString()),r()},addStepUi:function(){if("none"!=$(n+" select").val()){var i=$(n+" select").val(),s=1;sequencer.sequences[i]?s=sequencer.sequences[i].length:sequencer.modules[i][1].length&&(s=sequencer.modules[i][1].length),e.addSteps(i,t).run({index:e.images.image1.steps.length-s-1}),$(n+" .info").html("Select a new module to add to your sequence."),r(),a.setUrlHashParameter("steps",e.toString())}}}}},{"./urlHash.js":7}],4:[function(e,t,n){var a=e("./intermediateHtmlStepUi.js"),i=e("./urlHash.js");function s(e,t){var n=(t=t||{}).stepsEl||document.querySelector("#steps");t.selectStepSel=t.selectStepSel||"#selectStep";function s(e,t){if(0==$("#"+t).length){var n=document.createElement("span");n.innerHTML=' '+e,n.id=t,n.classList.add("notification"),$("body").append(n)}$("#"+t).fadeIn(500).delay(200).fadeOut(500)}return{getPreview:function(){return step.imgElement},onSetup:function(t,r){t.options&&t.options.description&&(t.description=t.options.description),t.ui='

'+t.name+'

"'+(t.description||"")+'

';var o=a(e,t),l=new DOMParser;if(t.ui=l.parseFromString(t.ui,"text/html"),t.ui=t.ui.querySelector("div.container"),t.linkElements=t.ui.querySelectorAll("a"),t.imgElement=t.ui.querySelector("a img"),e.modulesInfo().hasOwnProperty(t.name)){var c=e.modulesInfo(t.name).inputs,d=e.modulesInfo(t.name).outputs,u=Object.assign(c,d);for(var p in u){var v=c.hasOwnProperty(p),m="",f=v?c[p]:{};if(v)if("select"==f.type.toLowerCase()){for(var h in m+='"}else{let e=t.options[p]||f.default;m=''+e+"":m+='">'}else m+='';var g=document.createElement("div");g.className="row",g.setAttribute("name",p);var S=c[p].desc||p;g.innerHTML="
"+m+"
",t.ui.querySelector("div.details").appendChild(g)}$(t.ui.querySelector("div.details")).append('

Press apply to see changes

')}"load-image"!=t.name?(t.ui.querySelector("div.details").appendChild(l.parseFromString('
',"text/html").querySelector("div")),$(t.ui.querySelectorAll(".remove")).on("click",function(){s("Step Removed","remove-notification")}),$(t.ui.querySelectorAll(".insert-step")).on("click",function(){o.insertStep(t.ID)}),r.index==e.images.image1.steps.length?(n.appendChild(t.ui),$("#steps .container:nth-last-child(1) .insert-step").prop("disabled",!0),$("#steps .container:nth-last-child(2)")&&$("#steps .container:nth-last-child(2) .insert-step").prop("disabled",!1)):n.insertBefore(t.ui,$(n).children()[r.index])):$("#load-image").append(t.ui),$(t.ui.querySelector(".toggle")).on("click",()=>{$(t.ui.querySelector(".toggleIcon")).toggleClass("fa-caret-up").toggleClass("fa-caret-down"),$(t.ui.querySelectorAll(".cal")).toggleClass("collapse")});var b=0,q=!1;$(t.ui.querySelector(".input-form")).on("submit",function(n){n.preventDefault(),q&&($(t.ui.querySelector("div.details")).find("input,select").each(function(e,n){$(n).data("initValue",$(n).val()).data("hasChangedBefore",!1),t.options[$(n).attr("name")]=$(n).val()}),e.run({index:t.index-1}),i.setUrlHashParameter("steps",e.toString()),$(t.ui.querySelector(".btn-save")).prop("disabled",!0),q=!1,b=0)}),$(t.ui.querySelectorAll(".target")).each(function(e,n){$(n).data("initValue",$(n).val()).data("hasChangedBefore",!1).on("input",function(){var e,n,a,i;$(this).focus().data("hasChangedBefore",(e=$(this).val(),n=$(this).data("initValue"),a=$(this).data("hasChangedBefore"),i=!(isNaN(n)||isNaN(e)?e===n:e-n==0),q=(b+=a?i?0:-1:i?1:0)>0,$(t.ui.querySelector(".btn-save")).prop("disabled",!q),i))})}),$('input[type="range"]').on("input",function(){$(this).next().html($(this).val())})},onComplete:function(t){$(t.ui.querySelector(".load")).hide(),$(t.ui.querySelector("img")).show(),t.imgElement.src=t.output;var n=t.ui.querySelector(".img-thumbnail");for(let e=0;e

Select a new module to add to your sequence.

Brightness

Contrast

Saturation

Rotate

Crop

';r=(new DOMParser).parseFromString(r,"text/html").querySelector("div"),t.ui.querySelector("div.step").insertAdjacentElement("afterend",r),updatePreviews(t.output,"insertStep");var o=$("#insertStep select");for(var l in o.html(""),a)void 0!==a[l]&&o.append('");$("#insertStep #add-step-btn").prop("disabled",!0),o.append(''),$("#insertStep .radio-group .radio").on("click",function(){$(this).parent().find(".radio").removeClass("selected"),$(this).addClass("selected"),newStep=$(this).attr("data-value"),o.val(newStep),i(),s(n),$(this).removeClass("selected")}),$(t.ui.querySelector("#insertStep select")).on("change",i),$(t.ui.querySelector("#insertStep #add-step-btn")).on("click",function(){s(n)})},{insertStep:insertStep}}},{"./urlHash.js":7}],7:[function(e,t,n){function a(){var e=window.location.hash;e&&(e=e.split("#")[1]);var t={};return e.split("&").forEach(function(e,n){""!=(e=e.split("="))[0]&&(t[e[0]]=e[1])}),t}function i(e){var t=Object.keys(e),n=Object.values(e),a=[];t.forEach(function(e,i){""!=e&&a.push(t[i]+"="+n[i])});var i=a.join("&");window.location.hash=i}t.exports={getUrlHashParameter:function(e){return a()[e]},setUrlHashParameter:function(e,t){var n=a();n[e]=t,i(n)},getUrlHashParameters:a,setUrlHashParameters:i}},{}]},{},[1]); \ No newline at end of file +var setupCache=function(){"serviceWorker"in navigator&&navigator.serviceWorker.register("sw.js",{scope:"/examples/"}).then(function(e){const t=e.installing;t.onstatechange=(()=>{console.log(t),"installed"===t.state&&location.reload()}),console.log("Registration successful, scope is:",e.scope)}).catch(function(e){console.log("Service worker registration failed, error:",e)}),"serviceWorker"in navigator&&caches.keys().then(function(e){e.forEach(function(e){$("#clear-cache").append(" "+e)})}),$("#clear-cache").click(function(){"serviceWorker"in navigator&&caches.keys().then(function(e){e.forEach(function(e){caches.delete(e)})}),location.reload()})};function DefaultHtmlSequencerUi(e,t){var n=(t=t||{}).addStepSel=t.addStepSel||"#addStep",a=t.removeStepSel=t.removeStepSel||"button.remove";t.selectStepSel=t.selectStepSel||"#selectStep";function s(){var t=getUrlHashParameter("steps");t&&(e.importString(t),e.run({index:0})),setUrlHashParameter("steps",sequencer.toString())}function i(){sequencer.images.image1.steps.length<2?$(" #save-seq").prop("disabled",!0):$(" #save-seq").prop("disabled",!1)}return{onLoad:function(){s(),$("#selectStep").val()||$(n+" #add-step-btn").prop("disabled",!0),i()},importStepsFromUrlHash:s,selectNewStepUi:function(){var t=$(n+" select").val();$(n+" .info").html(e.modulesInfo(t).description),$(n+" #add-step-btn").prop("disabled",!1)},removeStepUi:function(){var e=$(a).index(this)+1;sequencer.removeSteps(e).run({index:e-1}),setUrlHashParameter("steps",sequencer.toString()),i()},addStepUi:function(){if("none"!=$(n+" select").val()){var a=$(n+" select").val(),s=1;sequencer.sequences[a]?s=sequencer.sequences[a].length:sequencer.modules[a][1].length&&(s=sequencer.modules[a][1].length),e.addSteps(a,t).run({index:e.images.image1.steps.length-s-1}),$(n+" .info").html("Select a new module to add to your sequence."),i(),setUrlHashParameter("steps",e.toString())}}}}function DefaultHtmlStepUi(e,t){var n=(t=t||{}).stepsEl||document.querySelector("#steps");t.selectStepSel=t.selectStepSel||"#selectStep";function a(e,t){if(0==$("#"+t).length){var n=document.createElement("span");n.innerHTML=' '+e,n.id=t,n.classList.add("notification"),$("body").append(n)}$("#"+t).fadeIn(500).delay(200).fadeOut(500)}return{getPreview:function(){return step.imgElement},onSetup:function(t,s){t.options&&t.options.description&&(t.description=t.options.description),t.ui='

'+t.name+'

"'+(t.description||"")+'

';var i=IntermediateHtmlStepUi(e,t),o=new DOMParser;if(t.ui=o.parseFromString(t.ui,"text/html"),t.ui=t.ui.querySelector("div.container"),t.linkElements=t.ui.querySelectorAll("a"),t.imgElement=t.ui.querySelector("a img"),e.modulesInfo().hasOwnProperty(t.name)){var r=e.modulesInfo(t.name).inputs,l=e.modulesInfo(t.name).outputs,c=Object.assign(r,l);for(var d in c){var u=r.hasOwnProperty(d),p="",m=u?r[d]:{};if(u)if("select"==m.type.toLowerCase()){for(var f in p+='"}else{let e=t.options[d]||m.default;p=''+e+"":p+='">'}else p+='';var v=document.createElement("div");v.className="row",v.setAttribute("name",d);var h=r[d].desc||d;v.innerHTML="
"+p+"
",t.ui.querySelector("div.details").appendChild(v)}$(t.ui.querySelector("div.details")).append('

Press apply to see changes

')}"load-image"!=t.name?(t.ui.querySelector("div.details").appendChild(o.parseFromString('
',"text/html").querySelector("div")),$(t.ui.querySelectorAll(".remove")).on("click",function(){a("Step Removed","remove-notification")}),$(t.ui.querySelectorAll(".insert-step")).on("click",function(){i.insertStep(t.ID)}),s.index==e.images.image1.steps.length?(n.appendChild(t.ui),$("#steps .container:nth-last-child(1) .insert-step").prop("disabled",!0),$("#steps .container:nth-last-child(2)")&&$("#steps .container:nth-last-child(2) .insert-step").prop("disabled",!1)):n.insertBefore(t.ui,$(n).children()[s.index])):$("#load-image").append(t.ui),$(t.ui.querySelector(".toggle")).on("click",()=>{$(t.ui.querySelector(".toggleIcon")).toggleClass("fa-caret-up").toggleClass("fa-caret-down"),$(t.ui.querySelectorAll(".cal")).toggleClass("collapse")});var g=0,S=!1;$(t.ui.querySelector(".input-form")).on("submit",function(n){n.preventDefault(),S&&($(t.ui.querySelector("div.details")).find("input,select").each(function(e,n){$(n).data("initValue",$(n).val()).data("hasChangedBefore",!1),t.options[$(n).attr("name")]=$(n).val()}),e.run({index:t.index-1}),setUrlHashParameter("steps",e.toString()),$(t.ui.querySelector(".btn-save")).prop("disabled",!0),S=!1,g=0)}),$(t.ui.querySelectorAll(".target")).each(function(e,n){$(n).data("initValue",$(n).val()).data("hasChangedBefore",!1).on("input",function(){var e,n,a,s;$(this).focus().data("hasChangedBefore",(e=$(this).val(),n=$(this).data("initValue"),a=$(this).data("hasChangedBefore"),s=!(isNaN(n)||isNaN(e)?e===n:e-n==0),S=(g+=a?s?0:-1:s?1:0)>0,$(t.ui.querySelector(".btn-save")).prop("disabled",!S),s))})}),$('input[type="range"]').on("input",function(){$(this).next().html($(this).val())})},onComplete:function(t){$(t.ui.querySelector(".load")).hide(),$(t.ui.querySelector("img")).show(),$(t.ui.querySelector(".load-spin")).hide(),t.imgElement.src=t.output;var n=t.ui.querySelector(".img-thumbnail");for(let e=0;e

Select a new module to add to your sequence.

Brightness

Contrast

Saturation

Rotate

Crop

';o=(new DOMParser).parseFromString(o,"text/html").querySelector("div"),t.ui.querySelector("div.step").insertAdjacentElement("afterend",o);var r=$("#insertStep select");for(var l in r.html(""),i)void 0!==i[l]&&r.append('");$("#insertStep #add-step-btn").prop("disabled",!0),r.append(''),$("#insertStep .radio-group .radio").on("click",function(){$(this).parent().find(".radio").removeClass("selected"),$(this).addClass("selected"),newStep=$(this).attr("data-value"),r.val(newStep),a(),s(n),$(this).removeClass("selected")}),$(t.ui.querySelector("#insertStep select")).on("change",a),$(t.ui.querySelector("#insertStep #add-step-btn")).on("click",function(){s(n)})},{insertStep:insertStep}}$(document).ready(function(e){e(function(){e(window).scroll(function(){e(this).scrollTop()>100?e(".move-up").fadeIn():e(".move-up").fadeOut()}),e(".move-up button").click(function(){return e("body,html").animate({scrollTop:0},800),!1})})});const staticCacheName="image-sequencer-static-v3";function getUrlHashParameter(e){return getUrlHashParameters()[e]}function getUrlHashParameters(){var e=window.location.hash;e&&(e=e.split("#")[1]);var t={};return e.split("&").forEach(function(e,n){""!=(e=e.split("="))[0]&&(t[e[0]]=e[1])}),t}function setUrlHashParameters(e){var t=Object.keys(e),n=Object.values(e),a=[];t.forEach(function(e,s){""!=e&&a.push(t[s]+"="+n[s])});var s=a.join("&");window.location.hash=s}function setUrlHashParameter(e,t){var n=getUrlHashParameters();n[e]=t,setUrlHashParameters(n)}self.addEventListener("install",e=>{console.log("Attempting to install service worker")}),self.addEventListener("activate",function(e){console.log("[ServiceWorker] Activate"),e.waitUntil(caches.keys().then(function(e){return Promise.all(e.filter(function(e){return e.startsWith("image-sequencer-")&&e!=staticCacheName}).map(function(e){return caches.delete(e)}))}))}),self.addEventListener("fetch",function(e){e.respondWith(caches.open(staticCacheName).then(function(t){return t.match(e.request).then(function(n){return n||fetch(e.request).then(function(n){return"GET"==e.request.method&&t.put(e.request,n.clone()),n})})}))}),window.onload=function(){function e(){var e=sequencer.modulesInfo();console.log(e);var t=$("#addStep select");for(var n in t.html(""),e)e[n]&&e[n].name&&t.append('");t.append('')}sequencer=ImageSequencer(),e(),$(window).on("scroll",function(){var e=$("body").scrollTop()>20||$(":root").scrollTop()>20;$("#move-up").css({display:e?"block":"none"})}),$("#move-up").on("click",function(){$("body").animate({scrollTop:0}),$(":root").animate({scrollTop:0})}),sequencer.setUI(DefaultHtmlStepUi(sequencer));var t=DefaultHtmlSequencerUi(sequencer);getUrlHashParameter("src")?sequencer.loadImage(getUrlHashParameter("src"),t.onLoad):sequencer.loadImage("images/tulips.png",t.onLoad);$("#addStep select").on("change",t.selectNewStepUi),$("#addStep #add-step-btn").on("click",t.addStepUi),$("#resetButton").on("click",function(){confirm("Do you want to reset the sequence?")&&(window.location="/")}),$(".radio-group .radio").on("click",function(){$(this).parent().find(".radio").removeClass("selected"),$(this).addClass("selected"),newStep=$(this).attr("data-value"),console.log(newStep),$("#addStep select").val(newStep),t.selectNewStepUi(),t.addStepUi(),$(this).removeClass("selected")}),$("#download-btn").click(function(){return $(".step-thumbnail:last()").trigger("click"),!1}),$("body").on("click","button.remove",t.removeStepUi),$("#save-seq").click(()=>{var t=window.prompt("Please give a name to your sequence... (Saved sequence will only be available in this browser).");t&&(t+=" (local)",sequencer.saveSequence(t,sequencer.toString()),sequencer.loadModules(),$(".savesequencemsg").fadeIn(),setTimeout(function(){$(".savesequencemsg").fadeOut()},1e3),e())});var n=!1;function a(e){$("#addStep img").remove();var t={brightness:"175",saturation:"0.5",rotate:90,contrast:90,crop:{x:0,y:0,w:"(50%)",h:"(50%)",noUI:!0}};Object.keys(t).forEach(function(n,a){!function(e,t,n){var a=ImageSequencer();function s(t){var n=document.createElement("img");n.classList.add("img-thumbnail"),n.classList.add("no-border"),n.src=t,$(n).css("max-width","200%"),$(n).css("transform","translateX(-20%)"),$("#addStep .row").find("div").each(function(){$(this).find("div").attr("data-value")===e&&$(this).find("div").append(n)})}a.loadImage(n,function(){a=a.addSteps("resize",{resize:"40%"}),"crop"===e?(console.log(t),a.addSteps(e,t).run(s)):a.addSteps(e,{[e]:t}).run(s)})}(n,Object.values(t)[a],e)})}$(".js-view-as-gif").on("click",function(e){if(!n){n=!0;var t=e.target;t.disabled=!0;try{for(var a=document.getElementsByClassName("step-thumbnail"),s=[],i=0;i - * @license MIT - */ -function compare(a, b) { - if (a === b) { - return 0; - } - - var x = a.length; - var y = b.length; - - for (var i = 0, len = Math.min(x, y); i < len; ++i) { - if (a[i] !== b[i]) { - x = a[i]; - y = b[i]; - break; - } - } - - if (x < y) { - return -1; - } - if (y < x) { - return 1; - } - return 0; -} -function isBuffer(b) { - if (global.Buffer && typeof global.Buffer.isBuffer === 'function') { - return global.Buffer.isBuffer(b); - } - return !!(b != null && b._isBuffer); -} - -// based on node assert, original notice: - -// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 -// -// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! -// -// Originally from narwhal.js (http://narwhaljs.org) -// Copyright (c) 2009 Thomas Robinson <280north.com> -// -// Permission is hereby granted, free of charge, to any person obtaining a copy -// of this software and associated documentation files (the 'Software'), to -// deal in the Software without restriction, including without limitation the -// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or -// sell copies of the Software, and to permit persons to whom the Software is -// furnished to do so, subject to the following conditions: -// -// The above copyright notice and this permission notice shall be included in -// all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -var util = require('util/'); -var hasOwn = Object.prototype.hasOwnProperty; -var pSlice = Array.prototype.slice; -var functionsHaveNames = (function () { - return function foo() {}.name === 'foo'; -}()); -function pToString (obj) { - return Object.prototype.toString.call(obj); -} -function isView(arrbuf) { - if (isBuffer(arrbuf)) { - return false; - } - if (typeof global.ArrayBuffer !== 'function') { - return false; - } - if (typeof ArrayBuffer.isView === 'function') { - return ArrayBuffer.isView(arrbuf); - } - if (!arrbuf) { - return false; - } - if (arrbuf instanceof DataView) { - return true; - } - if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) { - return true; - } - return false; -} -// 1. The assert module provides functions that throw -// AssertionError's when particular conditions are not met. The -// assert module must conform to the following interface. - -var assert = module.exports = ok; - -// 2. The AssertionError is defined in assert. -// new assert.AssertionError({ message: message, -// actual: actual, -// expected: expected }) - -var regex = /\s*function\s+([^\(\s]*)\s*/; -// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js -function getName(func) { - if (!util.isFunction(func)) { - return; - } - if (functionsHaveNames) { - return func.name; - } - var str = func.toString(); - var match = str.match(regex); - return match && match[1]; -} -assert.AssertionError = function AssertionError(options) { - this.name = 'AssertionError'; - this.actual = options.actual; - this.expected = options.expected; - this.operator = options.operator; - if (options.message) { - this.message = options.message; - this.generatedMessage = false; - } else { - this.message = getMessage(this); - this.generatedMessage = true; - } - var stackStartFunction = options.stackStartFunction || fail; - if (Error.captureStackTrace) { - Error.captureStackTrace(this, stackStartFunction); - } else { - // non v8 browsers so we can have a stacktrace - var err = new Error(); - if (err.stack) { - var out = err.stack; - - // try to strip useless frames - var fn_name = getName(stackStartFunction); - var idx = out.indexOf('\n' + fn_name); - if (idx >= 0) { - // once we have located the function frame - // we need to strip out everything before it (and its line) - var next_line = out.indexOf('\n', idx + 1); - out = out.substring(next_line + 1); - } - - this.stack = out; - } - } -}; - -// assert.AssertionError instanceof Error -util.inherits(assert.AssertionError, Error); - -function truncate(s, n) { - if (typeof s === 'string') { - return s.length < n ? s : s.slice(0, n); - } else { - return s; - } -} -function inspect(something) { - if (functionsHaveNames || !util.isFunction(something)) { - return util.inspect(something); - } - var rawname = getName(something); - var name = rawname ? ': ' + rawname : ''; - return '[Function' + name + ']'; -} -function getMessage(self) { - return truncate(inspect(self.actual), 128) + ' ' + - self.operator + ' ' + - truncate(inspect(self.expected), 128); -} - -// At present only the three keys mentioned above are used and -// understood by the spec. Implementations or sub modules can pass -// other keys to the AssertionError's constructor - they will be -// ignored. - -// 3. All of the following functions must throw an AssertionError -// when a corresponding condition is not met, with a message that -// may be undefined if not provided. All assertion methods provide -// both the actual and expected values to the assertion error for -// display purposes. - -function fail(actual, expected, message, operator, stackStartFunction) { - throw new assert.AssertionError({ - message: message, - actual: actual, - expected: expected, - operator: operator, - stackStartFunction: stackStartFunction - }); -} - -// EXTENSION! allows for well behaved errors defined elsewhere. -assert.fail = fail; - -// 4. Pure assertion tests whether a value is truthy, as determined -// by !!guard. -// assert.ok(guard, message_opt); -// This statement is equivalent to assert.equal(true, !!guard, -// message_opt);. To test strictly for the value true, use -// assert.strictEqual(true, guard, message_opt);. - -function ok(value, message) { - if (!value) fail(value, true, message, '==', assert.ok); -} -assert.ok = ok; - -// 5. The equality assertion tests shallow, coercive equality with -// ==. -// assert.equal(actual, expected, message_opt); - -assert.equal = function equal(actual, expected, message) { - if (actual != expected) fail(actual, expected, message, '==', assert.equal); -}; - -// 6. The non-equality assertion tests for whether two objects are not equal -// with != assert.notEqual(actual, expected, message_opt); - -assert.notEqual = function notEqual(actual, expected, message) { - if (actual == expected) { - fail(actual, expected, message, '!=', assert.notEqual); - } -}; - -// 7. The equivalence assertion tests a deep equality relation. -// assert.deepEqual(actual, expected, message_opt); - -assert.deepEqual = function deepEqual(actual, expected, message) { - if (!_deepEqual(actual, expected, false)) { - fail(actual, expected, message, 'deepEqual', assert.deepEqual); - } -}; - -assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) { - if (!_deepEqual(actual, expected, true)) { - fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual); - } -}; - -function _deepEqual(actual, expected, strict, memos) { - // 7.1. All identical values are equivalent, as determined by ===. - if (actual === expected) { - return true; - } else if (isBuffer(actual) && isBuffer(expected)) { - return compare(actual, expected) === 0; - - // 7.2. If the expected value is a Date object, the actual value is - // equivalent if it is also a Date object that refers to the same time. - } else if (util.isDate(actual) && util.isDate(expected)) { - return actual.getTime() === expected.getTime(); - - // 7.3 If the expected value is a RegExp object, the actual value is - // equivalent if it is also a RegExp object with the same source and - // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). - } else if (util.isRegExp(actual) && util.isRegExp(expected)) { - return actual.source === expected.source && - actual.global === expected.global && - actual.multiline === expected.multiline && - actual.lastIndex === expected.lastIndex && - actual.ignoreCase === expected.ignoreCase; - - // 7.4. Other pairs that do not both pass typeof value == 'object', - // equivalence is determined by ==. - } else if ((actual === null || typeof actual !== 'object') && - (expected === null || typeof expected !== 'object')) { - return strict ? actual === expected : actual == expected; - - // If both values are instances of typed arrays, wrap their underlying - // ArrayBuffers in a Buffer each to increase performance - // This optimization requires the arrays to have the same type as checked by - // Object.prototype.toString (aka pToString). Never perform binary - // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their - // bit patterns are not identical. - } else if (isView(actual) && isView(expected) && - pToString(actual) === pToString(expected) && - !(actual instanceof Float32Array || - actual instanceof Float64Array)) { - return compare(new Uint8Array(actual.buffer), - new Uint8Array(expected.buffer)) === 0; - - // 7.5 For all other Object pairs, including Array objects, equivalence is - // determined by having the same number of owned properties (as verified - // with Object.prototype.hasOwnProperty.call), the same set of keys - // (although not necessarily the same order), equivalent values for every - // corresponding key, and an identical 'prototype' property. Note: this - // accounts for both named and indexed properties on Arrays. - } else if (isBuffer(actual) !== isBuffer(expected)) { - return false; - } else { - memos = memos || {actual: [], expected: []}; - - var actualIndex = memos.actual.indexOf(actual); - if (actualIndex !== -1) { - if (actualIndex === memos.expected.indexOf(expected)) { - return true; - } - } - - memos.actual.push(actual); - memos.expected.push(expected); - - return objEquiv(actual, expected, strict, memos); - } -} - -function isArguments(object) { - return Object.prototype.toString.call(object) == '[object Arguments]'; -} - -function objEquiv(a, b, strict, actualVisitedObjects) { - if (a === null || a === undefined || b === null || b === undefined) - return false; - // if one is a primitive, the other must be same - if (util.isPrimitive(a) || util.isPrimitive(b)) - return a === b; - if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b)) - return false; - var aIsArgs = isArguments(a); - var bIsArgs = isArguments(b); - if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) - return false; - if (aIsArgs) { - a = pSlice.call(a); - b = pSlice.call(b); - return _deepEqual(a, b, strict); - } - var ka = objectKeys(a); - var kb = objectKeys(b); - var key, i; - // having the same number of owned properties (keys incorporates - // hasOwnProperty) - if (ka.length !== kb.length) - return false; - //the same set of keys (although not necessarily the same order), - ka.sort(); - kb.sort(); - //~~~cheap key test - for (i = ka.length - 1; i >= 0; i--) { - if (ka[i] !== kb[i]) - return false; - } - //equivalent values for every corresponding key, and - //~~~possibly expensive deep test - for (i = ka.length - 1; i >= 0; i--) { - key = ka[i]; - if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects)) - return false; - } - return true; -} - -// 8. The non-equivalence assertion tests for any deep inequality. -// assert.notDeepEqual(actual, expected, message_opt); - -assert.notDeepEqual = function notDeepEqual(actual, expected, message) { - if (_deepEqual(actual, expected, false)) { - fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); - } -}; - -assert.notDeepStrictEqual = notDeepStrictEqual; -function notDeepStrictEqual(actual, expected, message) { - if (_deepEqual(actual, expected, true)) { - fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual); - } -} - - -// 9. The strict equality assertion tests strict equality, as determined by ===. -// assert.strictEqual(actual, expected, message_opt); - -assert.strictEqual = function strictEqual(actual, expected, message) { - if (actual !== expected) { - fail(actual, expected, message, '===', assert.strictEqual); - } -}; - -// 10. The strict non-equality assertion tests for strict inequality, as -// determined by !==. assert.notStrictEqual(actual, expected, message_opt); - -assert.notStrictEqual = function notStrictEqual(actual, expected, message) { - if (actual === expected) { - fail(actual, expected, message, '!==', assert.notStrictEqual); - } -}; - -function expectedException(actual, expected) { - if (!actual || !expected) { - return false; - } - - if (Object.prototype.toString.call(expected) == '[object RegExp]') { - return expected.test(actual); - } - - try { - if (actual instanceof expected) { - return true; - } - } catch (e) { - // Ignore. The instanceof check doesn't work for arrow functions. - } - - if (Error.isPrototypeOf(expected)) { - return false; - } - - return expected.call({}, actual) === true; -} - -function _tryBlock(block) { - var error; - try { - block(); - } catch (e) { - error = e; - } - return error; -} - -function _throws(shouldThrow, block, expected, message) { - var actual; - - if (typeof block !== 'function') { - throw new TypeError('"block" argument must be a function'); - } - - if (typeof expected === 'string') { - message = expected; - expected = null; - } - - actual = _tryBlock(block); - - message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + - (message ? ' ' + message : '.'); - - if (shouldThrow && !actual) { - fail(actual, expected, 'Missing expected exception' + message); - } - - var userProvidedMessage = typeof message === 'string'; - var isUnwantedException = !shouldThrow && util.isError(actual); - var isUnexpectedException = !shouldThrow && actual && !expected; - - if ((isUnwantedException && - userProvidedMessage && - expectedException(actual, expected)) || - isUnexpectedException) { - fail(actual, expected, 'Got unwanted exception' + message); - } - - if ((shouldThrow && actual && expected && - !expectedException(actual, expected)) || (!shouldThrow && actual)) { - throw actual; - } -} - -// 11. Expected to throw an error: -// assert.throws(block, Error_opt, message_opt); - -assert.throws = function(block, /*optional*/error, /*optional*/message) { - _throws(true, block, error, message); -}; - -// EXTENSION! This is annoying to write outside this module. -assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) { - _throws(false, block, error, message); -}; - -assert.ifError = function(err) { if (err) throw err; }; - -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) { - if (hasOwn.call(obj, key)) keys.push(key); - } - return keys; -}; - -}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"util/":4}],2:[function(require,module,exports){ -if (typeof Object.create === 'function') { - // implementation from standard node.js 'util' module - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - ctor.prototype = Object.create(superCtor.prototype, { - constructor: { - value: ctor, - enumerable: false, - writable: true, - configurable: true - } - }); - }; -} else { - // old school shim for old browsers - module.exports = function inherits(ctor, superCtor) { - ctor.super_ = superCtor - var TempCtor = function () {} - TempCtor.prototype = superCtor.prototype - ctor.prototype = new TempCtor() - ctor.prototype.constructor = ctor - } -} - -},{}],3:[function(require,module,exports){ -module.exports = function isBuffer(arg) { - return arg && typeof arg === 'object' - && typeof arg.copy === 'function' - && typeof arg.fill === 'function' - && typeof arg.readUInt8 === 'function'; -} -},{}],4:[function(require,module,exports){ -(function (process,global){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var formatRegExp = /%[sdj%]/g; -exports.format = function(f) { - if (!isString(f)) { - var objects = []; - for (var i = 0; i < arguments.length; i++) { - objects.push(inspect(arguments[i])); - } - return objects.join(' '); - } - - var i = 1; - var args = arguments; - var len = args.length; - var str = String(f).replace(formatRegExp, function(x) { - if (x === '%%') return '%'; - if (i >= len) return x; - switch (x) { - case '%s': return String(args[i++]); - case '%d': return Number(args[i++]); - case '%j': - try { - return JSON.stringify(args[i++]); - } catch (_) { - return '[Circular]'; - } - default: - return x; - } - }); - for (var x = args[i]; i < len; x = args[++i]) { - if (isNull(x) || !isObject(x)) { - str += ' ' + x; - } else { - str += ' ' + inspect(x); - } - } - return str; -}; - - -// Mark that a method should not be used. -// Returns a modified function which warns once by default. -// If --no-deprecation is set, then it is a no-op. -exports.deprecate = function(fn, msg) { - // Allow for deprecating things in the process of starting up. - if (isUndefined(global.process)) { - return function() { - return exports.deprecate(fn, msg).apply(this, arguments); - }; - } - - if (process.noDeprecation === true) { - return fn; - } - - var warned = false; - function deprecated() { - if (!warned) { - if (process.throwDeprecation) { - throw new Error(msg); - } else if (process.traceDeprecation) { - console.trace(msg); - } else { - console.error(msg); - } - warned = true; - } - return fn.apply(this, arguments); - } - - return deprecated; -}; - - -var debugs = {}; -var debugEnviron; -exports.debuglog = function(set) { - if (isUndefined(debugEnviron)) - debugEnviron = process.env.NODE_DEBUG || ''; - set = set.toUpperCase(); - if (!debugs[set]) { - if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { - var pid = process.pid; - debugs[set] = function() { - var msg = exports.format.apply(exports, arguments); - console.error('%s %d: %s', set, pid, msg); - }; - } else { - debugs[set] = function() {}; - } - } - return debugs[set]; -}; - - -/** - * Echos the value of a value. Trys to print the value out - * in the best way possible given the different types. - * - * @param {Object} obj The object to print out. - * @param {Object} opts Optional options object that alters the output. - */ -/* legacy: obj, showHidden, depth, colors*/ -function inspect(obj, opts) { - // default options - var ctx = { - seen: [], - stylize: stylizeNoColor - }; - // legacy... - if (arguments.length >= 3) ctx.depth = arguments[2]; - if (arguments.length >= 4) ctx.colors = arguments[3]; - if (isBoolean(opts)) { - // legacy... - ctx.showHidden = opts; - } else if (opts) { - // got an "options" object - exports._extend(ctx, opts); - } - // set default options - if (isUndefined(ctx.showHidden)) ctx.showHidden = false; - if (isUndefined(ctx.depth)) ctx.depth = 2; - if (isUndefined(ctx.colors)) ctx.colors = false; - if (isUndefined(ctx.customInspect)) ctx.customInspect = true; - if (ctx.colors) ctx.stylize = stylizeWithColor; - return formatValue(ctx, obj, ctx.depth); -} -exports.inspect = inspect; - - -// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics -inspect.colors = { - 'bold' : [1, 22], - 'italic' : [3, 23], - 'underline' : [4, 24], - 'inverse' : [7, 27], - 'white' : [37, 39], - 'grey' : [90, 39], - 'black' : [30, 39], - 'blue' : [34, 39], - 'cyan' : [36, 39], - 'green' : [32, 39], - 'magenta' : [35, 39], - 'red' : [31, 39], - 'yellow' : [33, 39] -}; - -// Don't use 'blue' not visible on cmd.exe -inspect.styles = { - 'special': 'cyan', - 'number': 'yellow', - 'boolean': 'yellow', - 'undefined': 'grey', - 'null': 'bold', - 'string': 'green', - 'date': 'magenta', - // "name": intentionally not styling - 'regexp': 'red' -}; - - -function stylizeWithColor(str, styleType) { - var style = inspect.styles[styleType]; - - if (style) { - return '\u001b[' + inspect.colors[style][0] + 'm' + str + - '\u001b[' + inspect.colors[style][1] + 'm'; - } else { - return str; - } -} - - -function stylizeNoColor(str, styleType) { - return str; -} - - -function arrayToHash(array) { - var hash = {}; - - array.forEach(function(val, idx) { - hash[val] = true; - }); - - return hash; -} - - -function formatValue(ctx, value, recurseTimes) { - // Provide a hook for user-specified inspect functions. - // Check that value is an object with an inspect function on it - if (ctx.customInspect && - value && - isFunction(value.inspect) && - // Filter out the util module, it's inspect function is special - value.inspect !== exports.inspect && - // Also filter out any prototype objects using the circular check. - !(value.constructor && value.constructor.prototype === value)) { - var ret = value.inspect(recurseTimes, ctx); - if (!isString(ret)) { - ret = formatValue(ctx, ret, recurseTimes); - } - return ret; - } - - // Primitive types cannot have properties - var primitive = formatPrimitive(ctx, value); - if (primitive) { - return primitive; - } - - // Look up the keys of the object. - var keys = Object.keys(value); - var visibleKeys = arrayToHash(keys); - - if (ctx.showHidden) { - keys = Object.getOwnPropertyNames(value); - } - - // IE doesn't make error fields non-enumerable - // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx - if (isError(value) - && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { - return formatError(value); - } - - // Some type of object without properties can be shortcutted. - if (keys.length === 0) { - if (isFunction(value)) { - var name = value.name ? ': ' + value.name : ''; - return ctx.stylize('[Function' + name + ']', 'special'); - } - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } - if (isDate(value)) { - return ctx.stylize(Date.prototype.toString.call(value), 'date'); - } - if (isError(value)) { - return formatError(value); - } - } - - var base = '', array = false, braces = ['{', '}']; - - // Make Array say that they are Array - if (isArray(value)) { - array = true; - braces = ['[', ']']; - } - - // Make functions say that they are functions - if (isFunction(value)) { - var n = value.name ? ': ' + value.name : ''; - base = ' [Function' + n + ']'; - } - - // Make RegExps say that they are RegExps - if (isRegExp(value)) { - base = ' ' + RegExp.prototype.toString.call(value); - } - - // Make dates with properties first say the date - if (isDate(value)) { - base = ' ' + Date.prototype.toUTCString.call(value); - } - - // Make error with message first say the error - if (isError(value)) { - base = ' ' + formatError(value); - } - - if (keys.length === 0 && (!array || value.length == 0)) { - return braces[0] + base + braces[1]; - } - - if (recurseTimes < 0) { - if (isRegExp(value)) { - return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); - } else { - return ctx.stylize('[Object]', 'special'); - } - } - - ctx.seen.push(value); - - var output; - if (array) { - output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); - } else { - output = keys.map(function(key) { - return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); - }); - } - - ctx.seen.pop(); - - return reduceToSingleString(output, base, braces); -} - - -function formatPrimitive(ctx, value) { - if (isUndefined(value)) - return ctx.stylize('undefined', 'undefined'); - if (isString(value)) { - var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') - .replace(/'/g, "\\'") - .replace(/\\"/g, '"') + '\''; - return ctx.stylize(simple, 'string'); - } - if (isNumber(value)) - return ctx.stylize('' + value, 'number'); - if (isBoolean(value)) - return ctx.stylize('' + value, 'boolean'); - // For some reason typeof null is "object", so special case here. - if (isNull(value)) - return ctx.stylize('null', 'null'); -} - - -function formatError(value) { - return '[' + Error.prototype.toString.call(value) + ']'; -} - - -function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { - var output = []; - for (var i = 0, l = value.length; i < l; ++i) { - if (hasOwnProperty(value, String(i))) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - String(i), true)); - } else { - output.push(''); - } - } - keys.forEach(function(key) { - if (!key.match(/^\d+$/)) { - output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, - key, true)); - } - }); - return output; -} - - -function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { - var name, str, desc; - desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; - if (desc.get) { - if (desc.set) { - str = ctx.stylize('[Getter/Setter]', 'special'); - } else { - str = ctx.stylize('[Getter]', 'special'); - } - } else { - if (desc.set) { - str = ctx.stylize('[Setter]', 'special'); - } - } - if (!hasOwnProperty(visibleKeys, key)) { - name = '[' + key + ']'; - } - if (!str) { - if (ctx.seen.indexOf(desc.value) < 0) { - if (isNull(recurseTimes)) { - str = formatValue(ctx, desc.value, null); - } else { - str = formatValue(ctx, desc.value, recurseTimes - 1); - } - if (str.indexOf('\n') > -1) { - if (array) { - str = str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n').substr(2); - } else { - str = '\n' + str.split('\n').map(function(line) { - return ' ' + line; - }).join('\n'); - } - } - } else { - str = ctx.stylize('[Circular]', 'special'); - } - } - if (isUndefined(name)) { - if (array && key.match(/^\d+$/)) { - return str; - } - name = JSON.stringify('' + key); - if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { - name = name.substr(1, name.length - 2); - name = ctx.stylize(name, 'name'); - } else { - name = name.replace(/'/g, "\\'") - .replace(/\\"/g, '"') - .replace(/(^"|"$)/g, "'"); - name = ctx.stylize(name, 'string'); - } - } - - return name + ': ' + str; -} - - -function reduceToSingleString(output, base, braces) { - var numLinesEst = 0; - var length = output.reduce(function(prev, cur) { - numLinesEst++; - if (cur.indexOf('\n') >= 0) numLinesEst++; - return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; - }, 0); - - if (length > 60) { - return braces[0] + - (base === '' ? '' : base + '\n ') + - ' ' + - output.join(',\n ') + - ' ' + - braces[1]; - } - - return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; -} - - -// NOTE: These type checking functions intentionally don't use `instanceof` -// because it is fragile and can be easily faked with `Object.create()`. -function isArray(ar) { - return Array.isArray(ar); -} -exports.isArray = isArray; - -function isBoolean(arg) { - return typeof arg === 'boolean'; -} -exports.isBoolean = isBoolean; - -function isNull(arg) { - return arg === null; -} -exports.isNull = isNull; - -function isNullOrUndefined(arg) { - return arg == null; -} -exports.isNullOrUndefined = isNullOrUndefined; - -function isNumber(arg) { - return typeof arg === 'number'; -} -exports.isNumber = isNumber; - -function isString(arg) { - return typeof arg === 'string'; -} -exports.isString = isString; - -function isSymbol(arg) { - return typeof arg === 'symbol'; -} -exports.isSymbol = isSymbol; - -function isUndefined(arg) { - return arg === void 0; -} -exports.isUndefined = isUndefined; - -function isRegExp(re) { - return isObject(re) && objectToString(re) === '[object RegExp]'; -} -exports.isRegExp = isRegExp; - -function isObject(arg) { - return typeof arg === 'object' && arg !== null; -} -exports.isObject = isObject; - -function isDate(d) { - return isObject(d) && objectToString(d) === '[object Date]'; -} -exports.isDate = isDate; - -function isError(e) { - return isObject(e) && - (objectToString(e) === '[object Error]' || e instanceof Error); -} -exports.isError = isError; - -function isFunction(arg) { - return typeof arg === 'function'; -} -exports.isFunction = isFunction; - -function isPrimitive(arg) { - return arg === null || - typeof arg === 'boolean' || - typeof arg === 'number' || - typeof arg === 'string' || - typeof arg === 'symbol' || // ES6 symbol - typeof arg === 'undefined'; -} -exports.isPrimitive = isPrimitive; - -exports.isBuffer = require('./support/isBuffer'); - -function objectToString(o) { - return Object.prototype.toString.call(o); -} - - -function pad(n) { - return n < 10 ? '0' + n.toString(10) : n.toString(10); -} - - -var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', - 'Oct', 'Nov', 'Dec']; - -// 26 Feb 16:19:34 -function timestamp() { - var d = new Date(); - var time = [pad(d.getHours()), - pad(d.getMinutes()), - pad(d.getSeconds())].join(':'); - return [d.getDate(), months[d.getMonth()], time].join(' '); -} - - -// log is just a thin wrapper to console.log that prepends a timestamp -exports.log = function() { - console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); -}; - - -/** - * Inherit the prototype methods from one constructor into another. - * - * The Function.prototype.inherits from lang.js rewritten as a standalone - * function (not on Function.prototype). NOTE: If this file is to be loaded - * during bootstrapping this function needs to be rewritten using some native - * functions as prototype setup using normal JavaScript does not work as - * expected during bootstrapping (see mirror.js in r114903). - * - * @param {function} ctor Constructor function which needs to inherit the - * prototype. - * @param {function} superCtor Constructor function to inherit prototype from. - */ -exports.inherits = require('inherits'); - -exports._extend = function(origin, add) { - // Don't do anything if add isn't an object - if (!add || !isObject(add)) return origin; - - var keys = Object.keys(add); - var i = keys.length; - while (i--) { - origin[keys[i]] = add[keys[i]]; - } - return origin; -}; - -function hasOwnProperty(obj, prop) { - return Object.prototype.hasOwnProperty.call(obj, prop); -} - -}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./support/isBuffer":3,"_process":114,"inherits":2}],5:[function(require,module,exports){ 'use strict' exports.byteLength = byteLength @@ -1267,7 +151,7 @@ function fromByteArray (uint8) { return parts.join('') } -},{}],6:[function(require,module,exports){ +},{}],2:[function(require,module,exports){ /** * Bit twiddling hacks for JavaScript. * @@ -1473,7 +357,7 @@ exports.nextCombination = function(v) { } -},{}],7:[function(require,module,exports){ +},{}],3:[function(require,module,exports){ (function (process,global,setImmediate){ /* @preserve * The MIT License (MIT) @@ -1500,7 +384,7 @@ exports.nextCombination = function(v) { * */ /** - * bluebird build version 3.5.3 + * bluebird build version 3.5.2 * Features enabled: core, race, call_get, generators, map, nodeify, promisify, props, reduce, settle, some, using, timers, filter, any, each */ !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Promise=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof _dereq_=="function"&&_dereq_;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof _dereq_=="function"&&_dereq_;for(var o=0;o exports.UNZIP) { - throw new TypeError('Bad argument'); - } - - this.dictionary = null; - this.err = 0; - this.flush = 0; - this.init_done = false; - this.level = 0; - this.memLevel = 0; - this.mode = mode; - this.strategy = 0; - this.windowBits = 0; - this.write_in_progress = false; - this.pending_close = false; - this.gzip_id_bytes_read = 0; -} - -Zlib.prototype.close = function () { - if (this.write_in_progress) { - this.pending_close = true; - return; - } - - this.pending_close = false; - - assert(this.init_done, 'close before init'); - assert(this.mode <= exports.UNZIP); - - if (this.mode === exports.DEFLATE || this.mode === exports.GZIP || this.mode === exports.DEFLATERAW) { - zlib_deflate.deflateEnd(this.strm); - } else if (this.mode === exports.INFLATE || this.mode === exports.GUNZIP || this.mode === exports.INFLATERAW || this.mode === exports.UNZIP) { - zlib_inflate.inflateEnd(this.strm); - } - - this.mode = exports.NONE; - - this.dictionary = null; -}; - -Zlib.prototype.write = function (flush, input, in_off, in_len, out, out_off, out_len) { - return this._write(true, flush, input, in_off, in_len, out, out_off, out_len); -}; - -Zlib.prototype.writeSync = function (flush, input, in_off, in_len, out, out_off, out_len) { - return this._write(false, flush, input, in_off, in_len, out, out_off, out_len); -}; - -Zlib.prototype._write = function (async, flush, input, in_off, in_len, out, out_off, out_len) { - assert.equal(arguments.length, 8); - - assert(this.init_done, 'write before init'); - assert(this.mode !== exports.NONE, 'already finalized'); - assert.equal(false, this.write_in_progress, 'write already in progress'); - assert.equal(false, this.pending_close, 'close is pending'); - - this.write_in_progress = true; - - assert.equal(false, flush === undefined, 'must provide flush value'); - - this.write_in_progress = true; - - if (flush !== exports.Z_NO_FLUSH && flush !== exports.Z_PARTIAL_FLUSH && flush !== exports.Z_SYNC_FLUSH && flush !== exports.Z_FULL_FLUSH && flush !== exports.Z_FINISH && flush !== exports.Z_BLOCK) { - throw new Error('Invalid flush value'); - } - - if (input == null) { - input = Buffer.alloc(0); - in_len = 0; - in_off = 0; - } - - this.strm.avail_in = in_len; - this.strm.input = input; - this.strm.next_in = in_off; - this.strm.avail_out = out_len; - this.strm.output = out; - this.strm.next_out = out_off; - this.flush = flush; - - if (!async) { - // sync version - this._process(); - - if (this._checkError()) { - return this._afterSync(); - } - return; - } - - // async version - var self = this; - process.nextTick(function () { - self._process(); - self._after(); - }); - - return this; -}; - -Zlib.prototype._afterSync = function () { - var avail_out = this.strm.avail_out; - var avail_in = this.strm.avail_in; - - this.write_in_progress = false; - - return [avail_in, avail_out]; -}; - -Zlib.prototype._process = function () { - var next_expected_header_byte = null; - - // If the avail_out is left at 0, then it means that it ran out - // of room. If there was avail_out left over, then it means - // that all of the input was consumed. - switch (this.mode) { - case exports.DEFLATE: - case exports.GZIP: - case exports.DEFLATERAW: - this.err = zlib_deflate.deflate(this.strm, this.flush); - break; - case exports.UNZIP: - if (this.strm.avail_in > 0) { - next_expected_header_byte = this.strm.next_in; - } - - switch (this.gzip_id_bytes_read) { - case 0: - if (next_expected_header_byte === null) { - break; - } - - if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID1) { - this.gzip_id_bytes_read = 1; - next_expected_header_byte++; - - if (this.strm.avail_in === 1) { - // The only available byte was already read. - break; - } - } else { - this.mode = exports.INFLATE; - break; - } - - // fallthrough - case 1: - if (next_expected_header_byte === null) { - break; - } - - if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID2) { - this.gzip_id_bytes_read = 2; - this.mode = exports.GUNZIP; - } else { - // There is no actual difference between INFLATE and INFLATERAW - // (after initialization). - this.mode = exports.INFLATE; - } - - break; - default: - throw new Error('invalid number of gzip magic number bytes read'); - } - - // fallthrough - case exports.INFLATE: - case exports.GUNZIP: - case exports.INFLATERAW: - this.err = zlib_inflate.inflate(this.strm, this.flush - - // If data was encoded with dictionary - );if (this.err === exports.Z_NEED_DICT && this.dictionary) { - // Load it - this.err = zlib_inflate.inflateSetDictionary(this.strm, this.dictionary); - if (this.err === exports.Z_OK) { - // And try to decode again - this.err = zlib_inflate.inflate(this.strm, this.flush); - } else if (this.err === exports.Z_DATA_ERROR) { - // Both inflateSetDictionary() and inflate() return Z_DATA_ERROR. - // Make it possible for After() to tell a bad dictionary from bad - // input. - this.err = exports.Z_NEED_DICT; - } - } - while (this.strm.avail_in > 0 && this.mode === exports.GUNZIP && this.err === exports.Z_STREAM_END && this.strm.next_in[0] !== 0x00) { - // Bytes remain in input buffer. Perhaps this is another compressed - // member in the same archive, or just trailing garbage. - // Trailing zero bytes are okay, though, since they are frequently - // used for padding. - - this.reset(); - this.err = zlib_inflate.inflate(this.strm, this.flush); - } - break; - default: - throw new Error('Unknown mode ' + this.mode); - } -}; - -Zlib.prototype._checkError = function () { - // Acceptable error states depend on the type of zlib stream. - switch (this.err) { - case exports.Z_OK: - case exports.Z_BUF_ERROR: - if (this.strm.avail_out !== 0 && this.flush === exports.Z_FINISH) { - this._error('unexpected end of file'); - return false; - } - break; - case exports.Z_STREAM_END: - // normal statuses, not fatal - break; - case exports.Z_NEED_DICT: - if (this.dictionary == null) { - this._error('Missing dictionary'); - } else { - this._error('Bad dictionary'); - } - return false; - default: - // something else. - this._error('Zlib error'); - return false; - } - - return true; -}; - -Zlib.prototype._after = function () { - if (!this._checkError()) { - return; - } - - var avail_out = this.strm.avail_out; - var avail_in = this.strm.avail_in; - - this.write_in_progress = false; - - // call the write() cb - this.callback(avail_in, avail_out); - - if (this.pending_close) { - this.close(); - } -}; - -Zlib.prototype._error = function (message) { - if (this.strm.msg) { - message = this.strm.msg; - } - this.onerror(message, this.err - - // no hope of rescue. - );this.write_in_progress = false; - if (this.pending_close) { - this.close(); - } -}; - -Zlib.prototype.init = function (windowBits, level, memLevel, strategy, dictionary) { - assert(arguments.length === 4 || arguments.length === 5, 'init(windowBits, level, memLevel, strategy, [dictionary])'); - - assert(windowBits >= 8 && windowBits <= 15, 'invalid windowBits'); - assert(level >= -1 && level <= 9, 'invalid compression level'); - - assert(memLevel >= 1 && memLevel <= 9, 'invalid memlevel'); - - assert(strategy === exports.Z_FILTERED || strategy === exports.Z_HUFFMAN_ONLY || strategy === exports.Z_RLE || strategy === exports.Z_FIXED || strategy === exports.Z_DEFAULT_STRATEGY, 'invalid strategy'); - - this._init(level, windowBits, memLevel, strategy, dictionary); - this._setDictionary(); -}; - -Zlib.prototype.params = function () { - throw new Error('deflateParams Not supported'); -}; - -Zlib.prototype.reset = function () { - this._reset(); - this._setDictionary(); -}; - -Zlib.prototype._init = function (level, windowBits, memLevel, strategy, dictionary) { - this.level = level; - this.windowBits = windowBits; - this.memLevel = memLevel; - this.strategy = strategy; - - this.flush = exports.Z_NO_FLUSH; - - this.err = exports.Z_OK; - - if (this.mode === exports.GZIP || this.mode === exports.GUNZIP) { - this.windowBits += 16; - } - - if (this.mode === exports.UNZIP) { - this.windowBits += 32; - } - - if (this.mode === exports.DEFLATERAW || this.mode === exports.INFLATERAW) { - this.windowBits = -1 * this.windowBits; - } - - this.strm = new Zstream(); - - switch (this.mode) { - case exports.DEFLATE: - case exports.GZIP: - case exports.DEFLATERAW: - this.err = zlib_deflate.deflateInit2(this.strm, this.level, exports.Z_DEFLATED, this.windowBits, this.memLevel, this.strategy); - break; - case exports.INFLATE: - case exports.GUNZIP: - case exports.INFLATERAW: - case exports.UNZIP: - this.err = zlib_inflate.inflateInit2(this.strm, this.windowBits); - break; - default: - throw new Error('Unknown mode ' + this.mode); - } - - if (this.err !== exports.Z_OK) { - this._error('Init error'); - } - - this.dictionary = dictionary; - - this.write_in_progress = false; - this.init_done = true; -}; - -Zlib.prototype._setDictionary = function () { - if (this.dictionary == null) { - return; - } - - this.err = exports.Z_OK; - - switch (this.mode) { - case exports.DEFLATE: - case exports.DEFLATERAW: - this.err = zlib_deflate.deflateSetDictionary(this.strm, this.dictionary); - break; - default: - break; - } - - if (this.err !== exports.Z_OK) { - this._error('Failed to set dictionary'); - } -}; - -Zlib.prototype._reset = function () { - this.err = exports.Z_OK; - - switch (this.mode) { - case exports.DEFLATE: - case exports.DEFLATERAW: - case exports.GZIP: - this.err = zlib_deflate.deflateReset(this.strm); - break; - case exports.INFLATE: - case exports.INFLATERAW: - case exports.GUNZIP: - this.err = zlib_inflate.inflateReset(this.strm); - break; - default: - break; - } - - if (this.err !== exports.Z_OK) { - this._error('Failed to reset stream'); - } -}; - -exports.Zlib = Zlib; -}).call(this,require('_process'),require("buffer").Buffer) -},{"_process":114,"assert":1,"buffer":12,"pako/lib/zlib/constants":82,"pako/lib/zlib/deflate.js":84,"pako/lib/zlib/inflate.js":86,"pako/lib/zlib/zstream":90}],10:[function(require,module,exports){ -(function (process){ -'use strict'; - -var Buffer = require('buffer').Buffer; -var Transform = require('stream').Transform; -var binding = require('./binding'); -var util = require('util'); -var assert = require('assert').ok; -var kMaxLength = require('buffer').kMaxLength; -var kRangeErrorMessage = 'Cannot create final Buffer. It would be larger ' + 'than 0x' + kMaxLength.toString(16) + ' bytes'; - -// zlib doesn't provide these, so kludge them in following the same -// const naming scheme zlib uses. -binding.Z_MIN_WINDOWBITS = 8; -binding.Z_MAX_WINDOWBITS = 15; -binding.Z_DEFAULT_WINDOWBITS = 15; - -// fewer than 64 bytes per chunk is stupid. -// technically it could work with as few as 8, but even 64 bytes -// is absurdly low. Usually a MB or more is best. -binding.Z_MIN_CHUNK = 64; -binding.Z_MAX_CHUNK = Infinity; -binding.Z_DEFAULT_CHUNK = 16 * 1024; - -binding.Z_MIN_MEMLEVEL = 1; -binding.Z_MAX_MEMLEVEL = 9; -binding.Z_DEFAULT_MEMLEVEL = 8; - -binding.Z_MIN_LEVEL = -1; -binding.Z_MAX_LEVEL = 9; -binding.Z_DEFAULT_LEVEL = binding.Z_DEFAULT_COMPRESSION; - -// expose all the zlib constants -var bkeys = Object.keys(binding); -for (var bk = 0; bk < bkeys.length; bk++) { - var bkey = bkeys[bk]; - if (bkey.match(/^Z/)) { - Object.defineProperty(exports, bkey, { - enumerable: true, value: binding[bkey], writable: false - }); - } -} - -// translation table for return codes. -var codes = { - Z_OK: binding.Z_OK, - Z_STREAM_END: binding.Z_STREAM_END, - Z_NEED_DICT: binding.Z_NEED_DICT, - Z_ERRNO: binding.Z_ERRNO, - Z_STREAM_ERROR: binding.Z_STREAM_ERROR, - Z_DATA_ERROR: binding.Z_DATA_ERROR, - Z_MEM_ERROR: binding.Z_MEM_ERROR, - Z_BUF_ERROR: binding.Z_BUF_ERROR, - Z_VERSION_ERROR: binding.Z_VERSION_ERROR -}; - -var ckeys = Object.keys(codes); -for (var ck = 0; ck < ckeys.length; ck++) { - var ckey = ckeys[ck]; - codes[codes[ckey]] = ckey; -} - -Object.defineProperty(exports, 'codes', { - enumerable: true, value: Object.freeze(codes), writable: false -}); - -exports.Deflate = Deflate; -exports.Inflate = Inflate; -exports.Gzip = Gzip; -exports.Gunzip = Gunzip; -exports.DeflateRaw = DeflateRaw; -exports.InflateRaw = InflateRaw; -exports.Unzip = Unzip; - -exports.createDeflate = function (o) { - return new Deflate(o); -}; - -exports.createInflate = function (o) { - return new Inflate(o); -}; - -exports.createDeflateRaw = function (o) { - return new DeflateRaw(o); -}; - -exports.createInflateRaw = function (o) { - return new InflateRaw(o); -}; - -exports.createGzip = function (o) { - return new Gzip(o); -}; - -exports.createGunzip = function (o) { - return new Gunzip(o); -}; - -exports.createUnzip = function (o) { - return new Unzip(o); -}; - -// Convenience methods. -// compress/decompress a string or buffer in one step. -exports.deflate = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new Deflate(opts), buffer, callback); -}; - -exports.deflateSync = function (buffer, opts) { - return zlibBufferSync(new Deflate(opts), buffer); -}; - -exports.gzip = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new Gzip(opts), buffer, callback); -}; - -exports.gzipSync = function (buffer, opts) { - return zlibBufferSync(new Gzip(opts), buffer); -}; - -exports.deflateRaw = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new DeflateRaw(opts), buffer, callback); -}; - -exports.deflateRawSync = function (buffer, opts) { - return zlibBufferSync(new DeflateRaw(opts), buffer); -}; - -exports.unzip = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new Unzip(opts), buffer, callback); -}; - -exports.unzipSync = function (buffer, opts) { - return zlibBufferSync(new Unzip(opts), buffer); -}; - -exports.inflate = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new Inflate(opts), buffer, callback); -}; - -exports.inflateSync = function (buffer, opts) { - return zlibBufferSync(new Inflate(opts), buffer); -}; - -exports.gunzip = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new Gunzip(opts), buffer, callback); -}; - -exports.gunzipSync = function (buffer, opts) { - return zlibBufferSync(new Gunzip(opts), buffer); -}; - -exports.inflateRaw = function (buffer, opts, callback) { - if (typeof opts === 'function') { - callback = opts; - opts = {}; - } - return zlibBuffer(new InflateRaw(opts), buffer, callback); -}; - -exports.inflateRawSync = function (buffer, opts) { - return zlibBufferSync(new InflateRaw(opts), buffer); -}; - -function zlibBuffer(engine, buffer, callback) { - var buffers = []; - var nread = 0; - - engine.on('error', onError); - engine.on('end', onEnd); - - engine.end(buffer); - flow(); - - function flow() { - var chunk; - while (null !== (chunk = engine.read())) { - buffers.push(chunk); - nread += chunk.length; - } - engine.once('readable', flow); - } - - function onError(err) { - engine.removeListener('end', onEnd); - engine.removeListener('readable', flow); - callback(err); - } - - function onEnd() { - var buf; - var err = null; - - if (nread >= kMaxLength) { - err = new RangeError(kRangeErrorMessage); - } else { - buf = Buffer.concat(buffers, nread); - } - - buffers = []; - engine.close(); - callback(err, buf); - } -} - -function zlibBufferSync(engine, buffer) { - if (typeof buffer === 'string') buffer = Buffer.from(buffer); - - if (!Buffer.isBuffer(buffer)) throw new TypeError('Not a string or buffer'); - - var flushFlag = engine._finishFlushFlag; - - return engine._processChunk(buffer, flushFlag); -} - -// generic zlib -// minimal 2-byte header -function Deflate(opts) { - if (!(this instanceof Deflate)) return new Deflate(opts); - Zlib.call(this, opts, binding.DEFLATE); -} - -function Inflate(opts) { - if (!(this instanceof Inflate)) return new Inflate(opts); - Zlib.call(this, opts, binding.INFLATE); -} - -// gzip - bigger header, same deflate compression -function Gzip(opts) { - if (!(this instanceof Gzip)) return new Gzip(opts); - Zlib.call(this, opts, binding.GZIP); -} - -function Gunzip(opts) { - if (!(this instanceof Gunzip)) return new Gunzip(opts); - Zlib.call(this, opts, binding.GUNZIP); -} - -// raw - no header -function DeflateRaw(opts) { - if (!(this instanceof DeflateRaw)) return new DeflateRaw(opts); - Zlib.call(this, opts, binding.DEFLATERAW); -} - -function InflateRaw(opts) { - if (!(this instanceof InflateRaw)) return new InflateRaw(opts); - Zlib.call(this, opts, binding.INFLATERAW); -} - -// auto-detect header. -function Unzip(opts) { - if (!(this instanceof Unzip)) return new Unzip(opts); - Zlib.call(this, opts, binding.UNZIP); -} - -function isValidFlushFlag(flag) { - return flag === binding.Z_NO_FLUSH || flag === binding.Z_PARTIAL_FLUSH || flag === binding.Z_SYNC_FLUSH || flag === binding.Z_FULL_FLUSH || flag === binding.Z_FINISH || flag === binding.Z_BLOCK; -} - -// the Zlib class they all inherit from -// This thing manages the queue of requests, and returns -// true or false if there is anything in the queue when -// you call the .write() method. - -function Zlib(opts, mode) { - var _this = this; - - this._opts = opts = opts || {}; - this._chunkSize = opts.chunkSize || exports.Z_DEFAULT_CHUNK; - - Transform.call(this, opts); - - if (opts.flush && !isValidFlushFlag(opts.flush)) { - throw new Error('Invalid flush flag: ' + opts.flush); - } - if (opts.finishFlush && !isValidFlushFlag(opts.finishFlush)) { - throw new Error('Invalid flush flag: ' + opts.finishFlush); - } - - this._flushFlag = opts.flush || binding.Z_NO_FLUSH; - this._finishFlushFlag = typeof opts.finishFlush !== 'undefined' ? opts.finishFlush : binding.Z_FINISH; - - if (opts.chunkSize) { - if (opts.chunkSize < exports.Z_MIN_CHUNK || opts.chunkSize > exports.Z_MAX_CHUNK) { - throw new Error('Invalid chunk size: ' + opts.chunkSize); - } - } - - if (opts.windowBits) { - if (opts.windowBits < exports.Z_MIN_WINDOWBITS || opts.windowBits > exports.Z_MAX_WINDOWBITS) { - throw new Error('Invalid windowBits: ' + opts.windowBits); - } - } - - if (opts.level) { - if (opts.level < exports.Z_MIN_LEVEL || opts.level > exports.Z_MAX_LEVEL) { - throw new Error('Invalid compression level: ' + opts.level); - } - } - - if (opts.memLevel) { - if (opts.memLevel < exports.Z_MIN_MEMLEVEL || opts.memLevel > exports.Z_MAX_MEMLEVEL) { - throw new Error('Invalid memLevel: ' + opts.memLevel); - } - } - - if (opts.strategy) { - if (opts.strategy != exports.Z_FILTERED && opts.strategy != exports.Z_HUFFMAN_ONLY && opts.strategy != exports.Z_RLE && opts.strategy != exports.Z_FIXED && opts.strategy != exports.Z_DEFAULT_STRATEGY) { - throw new Error('Invalid strategy: ' + opts.strategy); - } - } - - if (opts.dictionary) { - if (!Buffer.isBuffer(opts.dictionary)) { - throw new Error('Invalid dictionary: it should be a Buffer instance'); - } - } - - this._handle = new binding.Zlib(mode); - - var self = this; - this._hadError = false; - this._handle.onerror = function (message, errno) { - // there is no way to cleanly recover. - // continuing only obscures problems. - _close(self); - self._hadError = true; - - var error = new Error(message); - error.errno = errno; - error.code = exports.codes[errno]; - self.emit('error', error); - }; - - var level = exports.Z_DEFAULT_COMPRESSION; - if (typeof opts.level === 'number') level = opts.level; - - var strategy = exports.Z_DEFAULT_STRATEGY; - if (typeof opts.strategy === 'number') strategy = opts.strategy; - - this._handle.init(opts.windowBits || exports.Z_DEFAULT_WINDOWBITS, level, opts.memLevel || exports.Z_DEFAULT_MEMLEVEL, strategy, opts.dictionary); - - this._buffer = Buffer.allocUnsafe(this._chunkSize); - this._offset = 0; - this._level = level; - this._strategy = strategy; - - this.once('end', this.close); - - Object.defineProperty(this, '_closed', { - get: function () { - return !_this._handle; - }, - configurable: true, - enumerable: true - }); -} - -util.inherits(Zlib, Transform); - -Zlib.prototype.params = function (level, strategy, callback) { - if (level < exports.Z_MIN_LEVEL || level > exports.Z_MAX_LEVEL) { - throw new RangeError('Invalid compression level: ' + level); - } - if (strategy != exports.Z_FILTERED && strategy != exports.Z_HUFFMAN_ONLY && strategy != exports.Z_RLE && strategy != exports.Z_FIXED && strategy != exports.Z_DEFAULT_STRATEGY) { - throw new TypeError('Invalid strategy: ' + strategy); - } - - if (this._level !== level || this._strategy !== strategy) { - var self = this; - this.flush(binding.Z_SYNC_FLUSH, function () { - assert(self._handle, 'zlib binding closed'); - self._handle.params(level, strategy); - if (!self._hadError) { - self._level = level; - self._strategy = strategy; - if (callback) callback(); - } - }); - } else { - process.nextTick(callback); - } -}; - -Zlib.prototype.reset = function () { - assert(this._handle, 'zlib binding closed'); - return this._handle.reset(); -}; - -// This is the _flush function called by the transform class, -// internally, when the last chunk has been written. -Zlib.prototype._flush = function (callback) { - this._transform(Buffer.alloc(0), '', callback); -}; - -Zlib.prototype.flush = function (kind, callback) { - var _this2 = this; - - var ws = this._writableState; - - if (typeof kind === 'function' || kind === undefined && !callback) { - callback = kind; - kind = binding.Z_FULL_FLUSH; - } - - if (ws.ended) { - if (callback) process.nextTick(callback); - } else if (ws.ending) { - if (callback) this.once('end', callback); - } else if (ws.needDrain) { - if (callback) { - this.once('drain', function () { - return _this2.flush(kind, callback); - }); - } - } else { - this._flushFlag = kind; - this.write(Buffer.alloc(0), '', callback); - } -}; - -Zlib.prototype.close = function (callback) { - _close(this, callback); - process.nextTick(emitCloseNT, this); -}; - -function _close(engine, callback) { - if (callback) process.nextTick(callback); - - // Caller may invoke .close after a zlib error (which will null _handle). - if (!engine._handle) return; - - engine._handle.close(); - engine._handle = null; -} - -function emitCloseNT(self) { - self.emit('close'); -} - -Zlib.prototype._transform = function (chunk, encoding, cb) { - var flushFlag; - var ws = this._writableState; - var ending = ws.ending || ws.ended; - var last = ending && (!chunk || ws.length === chunk.length); - - if (chunk !== null && !Buffer.isBuffer(chunk)) return cb(new Error('invalid input')); - - if (!this._handle) return cb(new Error('zlib binding closed')); - - // If it's the last chunk, or a final flush, we use the Z_FINISH flush flag - // (or whatever flag was provided using opts.finishFlush). - // If it's explicitly flushing at some other time, then we use - // Z_FULL_FLUSH. Otherwise, use Z_NO_FLUSH for maximum compression - // goodness. - if (last) flushFlag = this._finishFlushFlag;else { - flushFlag = this._flushFlag; - // once we've flushed the last of the queue, stop flushing and - // go back to the normal behavior. - if (chunk.length >= ws.length) { - this._flushFlag = this._opts.flush || binding.Z_NO_FLUSH; - } - } - - this._processChunk(chunk, flushFlag, cb); -}; - -Zlib.prototype._processChunk = function (chunk, flushFlag, cb) { - var availInBefore = chunk && chunk.length; - var availOutBefore = this._chunkSize - this._offset; - var inOff = 0; - - var self = this; - - var async = typeof cb === 'function'; - - if (!async) { - var buffers = []; - var nread = 0; - - var error; - this.on('error', function (er) { - error = er; - }); - - assert(this._handle, 'zlib binding closed'); - do { - var res = this._handle.writeSync(flushFlag, chunk, // in - inOff, // in_off - availInBefore, // in_len - this._buffer, // out - this._offset, //out_off - availOutBefore); // out_len - } while (!this._hadError && callback(res[0], res[1])); - - if (this._hadError) { - throw error; - } - - if (nread >= kMaxLength) { - _close(this); - throw new RangeError(kRangeErrorMessage); - } - - var buf = Buffer.concat(buffers, nread); - _close(this); - - return buf; - } - - assert(this._handle, 'zlib binding closed'); - var req = this._handle.write(flushFlag, chunk, // in - inOff, // in_off - availInBefore, // in_len - this._buffer, // out - this._offset, //out_off - availOutBefore); // out_len - - req.buffer = chunk; - req.callback = callback; - - function callback(availInAfter, availOutAfter) { - // When the callback is used in an async write, the callback's - // context is the `req` object that was created. The req object - // is === this._handle, and that's why it's important to null - // out the values after they are done being used. `this._handle` - // can stay in memory longer than the callback and buffer are needed. - if (this) { - this.buffer = null; - this.callback = null; - } - - if (self._hadError) return; - - var have = availOutBefore - availOutAfter; - assert(have >= 0, 'have should not go down'); - - if (have > 0) { - var out = self._buffer.slice(self._offset, self._offset + have); - self._offset += have; - // serve some output to the consumer. - if (async) { - self.push(out); - } else { - buffers.push(out); - nread += out.length; - } - } - - // exhausted the output buffer, or used all the input create a new one. - if (availOutAfter === 0 || self._offset >= self._chunkSize) { - availOutBefore = self._chunkSize; - self._offset = 0; - self._buffer = Buffer.allocUnsafe(self._chunkSize); - } - - if (availOutAfter === 0) { - // Not actually done. Need to reprocess. - // Also, update the availInBefore to the availInAfter value, - // so that if we have to hit it a third (fourth, etc.) time, - // it'll have the correct byte counts. - inOff += availInBefore - availInAfter; - availInBefore = availInAfter; - - if (!async) return true; - - var newReq = self._handle.write(flushFlag, chunk, inOff, availInBefore, self._buffer, self._offset, self._chunkSize); - newReq.callback = callback; // this same function - newReq.buffer = chunk; - return; - } - - if (!async) return false; - - // finished with the chunk. - cb(); - } -}; - -util.inherits(Deflate, Zlib); -util.inherits(Inflate, Zlib); -util.inherits(Gzip, Zlib); -util.inherits(Gunzip, Zlib); -util.inherits(DeflateRaw, Zlib); -util.inherits(InflateRaw, Zlib); -util.inherits(Unzip, Zlib); -}).call(this,require('_process')) -},{"./binding":9,"_process":114,"assert":1,"buffer":12,"stream":128,"util":152}],11:[function(require,module,exports){ -arguments[4][8][0].apply(exports,arguments) -},{"dup":8}],12:[function(require,module,exports){ -/*! - * The buffer module from node.js, for the browser. - * - * @author Feross Aboukhadijeh - * @license MIT - */ -/* eslint-disable no-proto */ - -'use strict' - -var base64 = require('base64-js') -var ieee754 = require('ieee754') - -exports.Buffer = Buffer -exports.SlowBuffer = SlowBuffer -exports.INSPECT_MAX_BYTES = 50 - -var K_MAX_LENGTH = 0x7fffffff -exports.kMaxLength = K_MAX_LENGTH - -/** - * If `Buffer.TYPED_ARRAY_SUPPORT`: - * === true Use Uint8Array implementation (fastest) - * === false Print warning and recommend using `buffer` v4.x which has an Object - * implementation (most compatible, even IE6) - * - * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, - * Opera 11.6+, iOS 4.2+. - * - * We report that the browser does not support typed arrays if the are not subclassable - * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` - * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support - * for __proto__ and has a buggy typed array implementation. - */ -Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() - -if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && - typeof console.error === 'function') { - console.error( - 'This browser lacks typed array (Uint8Array) support which is required by ' + - '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' - ) -} - -function typedArraySupport () { - // Can typed array instances can be augmented? - try { - var arr = new Uint8Array(1) - arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } } - return arr.foo() === 42 - } catch (e) { - return false - } -} - -Object.defineProperty(Buffer.prototype, 'parent', { - enumerable: true, - get: function () { - if (!Buffer.isBuffer(this)) return undefined - return this.buffer - } -}) - -Object.defineProperty(Buffer.prototype, 'offset', { - enumerable: true, - get: function () { - if (!Buffer.isBuffer(this)) return undefined - return this.byteOffset - } -}) - -function createBuffer (length) { - if (length > K_MAX_LENGTH) { - throw new RangeError('The value "' + length + '" is invalid for option "size"') - } - // Return an augmented `Uint8Array` instance - var buf = new Uint8Array(length) - buf.__proto__ = Buffer.prototype - return buf -} - -/** - * The Buffer constructor returns instances of `Uint8Array` that have their - * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of - * `Uint8Array`, so the returned instances will have all the node `Buffer` methods - * and the `Uint8Array` methods. Square bracket notation works as expected -- it - * returns a single octet. - * - * The `Uint8Array` prototype remains unmodified. - */ - -function Buffer (arg, encodingOrOffset, length) { - // Common case. - if (typeof arg === 'number') { - if (typeof encodingOrOffset === 'string') { - throw new TypeError( - 'The "string" argument must be of type string. Received type number' - ) - } - return allocUnsafe(arg) - } - return from(arg, encodingOrOffset, length) -} - -// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 -if (typeof Symbol !== 'undefined' && Symbol.species != null && - Buffer[Symbol.species] === Buffer) { - Object.defineProperty(Buffer, Symbol.species, { - value: null, - configurable: true, - enumerable: false, - writable: false - }) -} - -Buffer.poolSize = 8192 // not used by this implementation - -function from (value, encodingOrOffset, length) { - if (typeof value === 'string') { - return fromString(value, encodingOrOffset) - } - - if (ArrayBuffer.isView(value)) { - return fromArrayLike(value) - } - - if (value == null) { - throw TypeError( - 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + - 'or Array-like Object. Received type ' + (typeof value) - ) - } - - if (isInstance(value, ArrayBuffer) || - (value && isInstance(value.buffer, ArrayBuffer))) { - return fromArrayBuffer(value, encodingOrOffset, length) - } - - if (typeof value === 'number') { - throw new TypeError( - 'The "value" argument must not be of type number. Received type number' - ) - } - - var valueOf = value.valueOf && value.valueOf() - if (valueOf != null && valueOf !== value) { - return Buffer.from(valueOf, encodingOrOffset, length) - } - - var b = fromObject(value) - if (b) return b - - if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null && - typeof value[Symbol.toPrimitive] === 'function') { - return Buffer.from( - value[Symbol.toPrimitive]('string'), encodingOrOffset, length - ) - } - - throw new TypeError( - 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' + - 'or Array-like Object. Received type ' + (typeof value) - ) -} - -/** - * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError - * if value is a number. - * Buffer.from(str[, encoding]) - * Buffer.from(array) - * Buffer.from(buffer) - * Buffer.from(arrayBuffer[, byteOffset[, length]]) - **/ -Buffer.from = function (value, encodingOrOffset, length) { - return from(value, encodingOrOffset, length) -} - -// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: -// https://github.com/feross/buffer/pull/148 -Buffer.prototype.__proto__ = Uint8Array.prototype -Buffer.__proto__ = Uint8Array - -function assertSize (size) { - if (typeof size !== 'number') { - throw new TypeError('"size" argument must be of type number') - } else if (size < 0) { - throw new RangeError('The value "' + size + '" is invalid for option "size"') - } -} - -function alloc (size, fill, encoding) { - assertSize(size) - if (size <= 0) { - return createBuffer(size) - } - if (fill !== undefined) { - // Only pay attention to encoding if it's a string. This - // prevents accidentally sending in a number that would - // be interpretted as a start offset. - return typeof encoding === 'string' - ? createBuffer(size).fill(fill, encoding) - : createBuffer(size).fill(fill) - } - return createBuffer(size) -} - -/** - * Creates a new filled Buffer instance. - * alloc(size[, fill[, encoding]]) - **/ -Buffer.alloc = function (size, fill, encoding) { - return alloc(size, fill, encoding) -} - -function allocUnsafe (size) { - assertSize(size) - return createBuffer(size < 0 ? 0 : checked(size) | 0) -} - -/** - * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. - * */ -Buffer.allocUnsafe = function (size) { - return allocUnsafe(size) -} -/** - * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. - */ -Buffer.allocUnsafeSlow = function (size) { - return allocUnsafe(size) -} - -function fromString (string, encoding) { - if (typeof encoding !== 'string' || encoding === '') { - encoding = 'utf8' - } - - if (!Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - - var length = byteLength(string, encoding) | 0 - var buf = createBuffer(length) - - var actual = buf.write(string, encoding) - - if (actual !== length) { - // Writing a hex string, for example, that contains invalid characters will - // cause everything after the first invalid character to be ignored. (e.g. - // 'abxxcd' will be treated as 'ab') - buf = buf.slice(0, actual) - } - - return buf -} - -function fromArrayLike (array) { - var length = array.length < 0 ? 0 : checked(array.length) | 0 - var buf = createBuffer(length) - for (var i = 0; i < length; i += 1) { - buf[i] = array[i] & 255 - } - return buf -} - -function fromArrayBuffer (array, byteOffset, length) { - if (byteOffset < 0 || array.byteLength < byteOffset) { - throw new RangeError('"offset" is outside of buffer bounds') - } - - if (array.byteLength < byteOffset + (length || 0)) { - throw new RangeError('"length" is outside of buffer bounds') - } - - var buf - if (byteOffset === undefined && length === undefined) { - buf = new Uint8Array(array) - } else if (length === undefined) { - buf = new Uint8Array(array, byteOffset) - } else { - buf = new Uint8Array(array, byteOffset, length) - } - - // Return an augmented `Uint8Array` instance - buf.__proto__ = Buffer.prototype - return buf -} - -function fromObject (obj) { - if (Buffer.isBuffer(obj)) { - var len = checked(obj.length) | 0 - var buf = createBuffer(len) - - if (buf.length === 0) { - return buf - } - - obj.copy(buf, 0, 0, len) - return buf - } - - if (obj.length !== undefined) { - if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { - return createBuffer(0) - } - return fromArrayLike(obj) - } - - if (obj.type === 'Buffer' && Array.isArray(obj.data)) { - return fromArrayLike(obj.data) - } -} - -function checked (length) { - // Note: cannot use `length < K_MAX_LENGTH` here because that fails when - // length is NaN (which is otherwise coerced to zero.) - if (length >= K_MAX_LENGTH) { - throw new RangeError('Attempt to allocate Buffer larger than maximum ' + - 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') - } - return length | 0 -} - -function SlowBuffer (length) { - if (+length != length) { // eslint-disable-line eqeqeq - length = 0 - } - return Buffer.alloc(+length) -} - -Buffer.isBuffer = function isBuffer (b) { - return b != null && b._isBuffer === true && - b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false -} - -Buffer.compare = function compare (a, b) { - if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength) - if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength) - if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { - throw new TypeError( - 'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array' - ) - } - - if (a === b) return 0 - - var x = a.length - var y = b.length - - for (var i = 0, len = Math.min(x, y); i < len; ++i) { - if (a[i] !== b[i]) { - x = a[i] - y = b[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -Buffer.isEncoding = function isEncoding (encoding) { - switch (String(encoding).toLowerCase()) { - case 'hex': - case 'utf8': - case 'utf-8': - case 'ascii': - case 'latin1': - case 'binary': - case 'base64': - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return true - default: - return false - } -} - -Buffer.concat = function concat (list, length) { - if (!Array.isArray(list)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - - if (list.length === 0) { - return Buffer.alloc(0) - } - - var i - if (length === undefined) { - length = 0 - for (i = 0; i < list.length; ++i) { - length += list[i].length - } - } - - var buffer = Buffer.allocUnsafe(length) - var pos = 0 - for (i = 0; i < list.length; ++i) { - var buf = list[i] - if (isInstance(buf, Uint8Array)) { - buf = Buffer.from(buf) - } - if (!Buffer.isBuffer(buf)) { - throw new TypeError('"list" argument must be an Array of Buffers') - } - buf.copy(buffer, pos) - pos += buf.length - } - return buffer -} - -function byteLength (string, encoding) { - if (Buffer.isBuffer(string)) { - return string.length - } - if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) { - return string.byteLength - } - if (typeof string !== 'string') { - throw new TypeError( - 'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' + - 'Received type ' + typeof string - ) - } - - var len = string.length - var mustMatch = (arguments.length > 2 && arguments[2] === true) - if (!mustMatch && len === 0) return 0 - - // Use a for loop to avoid recursion - var loweredCase = false - for (;;) { - switch (encoding) { - case 'ascii': - case 'latin1': - case 'binary': - return len - case 'utf8': - case 'utf-8': - return utf8ToBytes(string).length - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return len * 2 - case 'hex': - return len >>> 1 - case 'base64': - return base64ToBytes(string).length - default: - if (loweredCase) { - return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8 - } - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} -Buffer.byteLength = byteLength - -function slowToString (encoding, start, end) { - var loweredCase = false - - // No need to verify that "this.length <= MAX_UINT32" since it's a read-only - // property of a typed array. - - // This behaves neither like String nor Uint8Array in that we set start/end - // to their upper/lower bounds if the value passed is out of range. - // undefined is handled specially as per ECMA-262 6th Edition, - // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. - if (start === undefined || start < 0) { - start = 0 - } - // Return early if start > this.length. Done here to prevent potential uint32 - // coercion fail below. - if (start > this.length) { - return '' - } - - if (end === undefined || end > this.length) { - end = this.length - } - - if (end <= 0) { - return '' - } - - // Force coersion to uint32. This will also coerce falsey/NaN values to 0. - end >>>= 0 - start >>>= 0 - - if (end <= start) { - return '' - } - - if (!encoding) encoding = 'utf8' - - while (true) { - switch (encoding) { - case 'hex': - return hexSlice(this, start, end) - - case 'utf8': - case 'utf-8': - return utf8Slice(this, start, end) - - case 'ascii': - return asciiSlice(this, start, end) - - case 'latin1': - case 'binary': - return latin1Slice(this, start, end) - - case 'base64': - return base64Slice(this, start, end) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return utf16leSlice(this, start, end) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = (encoding + '').toLowerCase() - loweredCase = true - } - } -} - -// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) -// to detect a Buffer instance. It's not possible to use `instanceof Buffer` -// reliably in a browserify context because there could be multiple different -// copies of the 'buffer' package in use. This method works even for Buffer -// instances that were created from another copy of the `buffer` package. -// See: https://github.com/feross/buffer/issues/154 -Buffer.prototype._isBuffer = true - -function swap (b, n, m) { - var i = b[n] - b[n] = b[m] - b[m] = i -} - -Buffer.prototype.swap16 = function swap16 () { - var len = this.length - if (len % 2 !== 0) { - throw new RangeError('Buffer size must be a multiple of 16-bits') - } - for (var i = 0; i < len; i += 2) { - swap(this, i, i + 1) - } - return this -} - -Buffer.prototype.swap32 = function swap32 () { - var len = this.length - if (len % 4 !== 0) { - throw new RangeError('Buffer size must be a multiple of 32-bits') - } - for (var i = 0; i < len; i += 4) { - swap(this, i, i + 3) - swap(this, i + 1, i + 2) - } - return this -} - -Buffer.prototype.swap64 = function swap64 () { - var len = this.length - if (len % 8 !== 0) { - throw new RangeError('Buffer size must be a multiple of 64-bits') - } - for (var i = 0; i < len; i += 8) { - swap(this, i, i + 7) - swap(this, i + 1, i + 6) - swap(this, i + 2, i + 5) - swap(this, i + 3, i + 4) - } - return this -} - -Buffer.prototype.toString = function toString () { - var length = this.length - if (length === 0) return '' - if (arguments.length === 0) return utf8Slice(this, 0, length) - return slowToString.apply(this, arguments) -} - -Buffer.prototype.toLocaleString = Buffer.prototype.toString - -Buffer.prototype.equals = function equals (b) { - if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') - if (this === b) return true - return Buffer.compare(this, b) === 0 -} - -Buffer.prototype.inspect = function inspect () { - var str = '' - var max = exports.INSPECT_MAX_BYTES - str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim() - if (this.length > max) str += ' ... ' - return '' -} - -Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { - if (isInstance(target, Uint8Array)) { - target = Buffer.from(target, target.offset, target.byteLength) - } - if (!Buffer.isBuffer(target)) { - throw new TypeError( - 'The "target" argument must be one of type Buffer or Uint8Array. ' + - 'Received type ' + (typeof target) - ) - } - - if (start === undefined) { - start = 0 - } - if (end === undefined) { - end = target ? target.length : 0 - } - if (thisStart === undefined) { - thisStart = 0 - } - if (thisEnd === undefined) { - thisEnd = this.length - } - - if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { - throw new RangeError('out of range index') - } - - if (thisStart >= thisEnd && start >= end) { - return 0 - } - if (thisStart >= thisEnd) { - return -1 - } - if (start >= end) { - return 1 - } - - start >>>= 0 - end >>>= 0 - thisStart >>>= 0 - thisEnd >>>= 0 - - if (this === target) return 0 - - var x = thisEnd - thisStart - var y = end - start - var len = Math.min(x, y) - - var thisCopy = this.slice(thisStart, thisEnd) - var targetCopy = target.slice(start, end) - - for (var i = 0; i < len; ++i) { - if (thisCopy[i] !== targetCopy[i]) { - x = thisCopy[i] - y = targetCopy[i] - break - } - } - - if (x < y) return -1 - if (y < x) return 1 - return 0 -} - -// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, -// OR the last index of `val` in `buffer` at offset <= `byteOffset`. -// -// Arguments: -// - buffer - a Buffer to search -// - val - a string, Buffer, or number -// - byteOffset - an index into `buffer`; will be clamped to an int32 -// - encoding - an optional encoding, relevant is val is a string -// - dir - true for indexOf, false for lastIndexOf -function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { - // Empty buffer means no match - if (buffer.length === 0) return -1 - - // Normalize byteOffset - if (typeof byteOffset === 'string') { - encoding = byteOffset - byteOffset = 0 - } else if (byteOffset > 0x7fffffff) { - byteOffset = 0x7fffffff - } else if (byteOffset < -0x80000000) { - byteOffset = -0x80000000 - } - byteOffset = +byteOffset // Coerce to Number. - if (numberIsNaN(byteOffset)) { - // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer - byteOffset = dir ? 0 : (buffer.length - 1) - } - - // Normalize byteOffset: negative offsets start from the end of the buffer - if (byteOffset < 0) byteOffset = buffer.length + byteOffset - if (byteOffset >= buffer.length) { - if (dir) return -1 - else byteOffset = buffer.length - 1 - } else if (byteOffset < 0) { - if (dir) byteOffset = 0 - else return -1 - } - - // Normalize val - if (typeof val === 'string') { - val = Buffer.from(val, encoding) - } - - // Finally, search either indexOf (if dir is true) or lastIndexOf - if (Buffer.isBuffer(val)) { - // Special case: looking for empty string/buffer always fails - if (val.length === 0) { - return -1 - } - return arrayIndexOf(buffer, val, byteOffset, encoding, dir) - } else if (typeof val === 'number') { - val = val & 0xFF // Search for a byte value [0-255] - if (typeof Uint8Array.prototype.indexOf === 'function') { - if (dir) { - return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) - } else { - return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) - } - } - return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) - } - - throw new TypeError('val must be string, number or Buffer') -} - -function arrayIndexOf (arr, val, byteOffset, encoding, dir) { - var indexSize = 1 - var arrLength = arr.length - var valLength = val.length - - if (encoding !== undefined) { - encoding = String(encoding).toLowerCase() - if (encoding === 'ucs2' || encoding === 'ucs-2' || - encoding === 'utf16le' || encoding === 'utf-16le') { - if (arr.length < 2 || val.length < 2) { - return -1 - } - indexSize = 2 - arrLength /= 2 - valLength /= 2 - byteOffset /= 2 - } - } - - function read (buf, i) { - if (indexSize === 1) { - return buf[i] - } else { - return buf.readUInt16BE(i * indexSize) - } - } - - var i - if (dir) { - var foundIndex = -1 - for (i = byteOffset; i < arrLength; i++) { - if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { - if (foundIndex === -1) foundIndex = i - if (i - foundIndex + 1 === valLength) return foundIndex * indexSize - } else { - if (foundIndex !== -1) i -= i - foundIndex - foundIndex = -1 - } - } - } else { - if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength - for (i = byteOffset; i >= 0; i--) { - var found = true - for (var j = 0; j < valLength; j++) { - if (read(arr, i + j) !== read(val, j)) { - found = false - break - } - } - if (found) return i - } - } - - return -1 -} - -Buffer.prototype.includes = function includes (val, byteOffset, encoding) { - return this.indexOf(val, byteOffset, encoding) !== -1 -} - -Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, true) -} - -Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { - return bidirectionalIndexOf(this, val, byteOffset, encoding, false) -} - -function hexWrite (buf, string, offset, length) { - offset = Number(offset) || 0 - var remaining = buf.length - offset - if (!length) { - length = remaining - } else { - length = Number(length) - if (length > remaining) { - length = remaining - } - } - - var strLen = string.length - - if (length > strLen / 2) { - length = strLen / 2 - } - for (var i = 0; i < length; ++i) { - var parsed = parseInt(string.substr(i * 2, 2), 16) - if (numberIsNaN(parsed)) return i - buf[offset + i] = parsed - } - return i -} - -function utf8Write (buf, string, offset, length) { - return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) -} - -function asciiWrite (buf, string, offset, length) { - return blitBuffer(asciiToBytes(string), buf, offset, length) -} - -function latin1Write (buf, string, offset, length) { - return asciiWrite(buf, string, offset, length) -} - -function base64Write (buf, string, offset, length) { - return blitBuffer(base64ToBytes(string), buf, offset, length) -} - -function ucs2Write (buf, string, offset, length) { - return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) -} - -Buffer.prototype.write = function write (string, offset, length, encoding) { - // Buffer#write(string) - if (offset === undefined) { - encoding = 'utf8' - length = this.length - offset = 0 - // Buffer#write(string, encoding) - } else if (length === undefined && typeof offset === 'string') { - encoding = offset - length = this.length - offset = 0 - // Buffer#write(string, offset[, length][, encoding]) - } else if (isFinite(offset)) { - offset = offset >>> 0 - if (isFinite(length)) { - length = length >>> 0 - if (encoding === undefined) encoding = 'utf8' - } else { - encoding = length - length = undefined - } - } else { - throw new Error( - 'Buffer.write(string, encoding, offset[, length]) is no longer supported' - ) - } - - var remaining = this.length - offset - if (length === undefined || length > remaining) length = remaining - - if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { - throw new RangeError('Attempt to write outside buffer bounds') - } - - if (!encoding) encoding = 'utf8' - - var loweredCase = false - for (;;) { - switch (encoding) { - case 'hex': - return hexWrite(this, string, offset, length) - - case 'utf8': - case 'utf-8': - return utf8Write(this, string, offset, length) - - case 'ascii': - return asciiWrite(this, string, offset, length) - - case 'latin1': - case 'binary': - return latin1Write(this, string, offset, length) - - case 'base64': - // Warning: maxLength not taken into account in base64Write - return base64Write(this, string, offset, length) - - case 'ucs2': - case 'ucs-2': - case 'utf16le': - case 'utf-16le': - return ucs2Write(this, string, offset, length) - - default: - if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) - encoding = ('' + encoding).toLowerCase() - loweredCase = true - } - } -} - -Buffer.prototype.toJSON = function toJSON () { - return { - type: 'Buffer', - data: Array.prototype.slice.call(this._arr || this, 0) - } -} - -function base64Slice (buf, start, end) { - if (start === 0 && end === buf.length) { - return base64.fromByteArray(buf) - } else { - return base64.fromByteArray(buf.slice(start, end)) - } -} - -function utf8Slice (buf, start, end) { - end = Math.min(buf.length, end) - var res = [] - - var i = start - while (i < end) { - var firstByte = buf[i] - var codePoint = null - var bytesPerSequence = (firstByte > 0xEF) ? 4 - : (firstByte > 0xDF) ? 3 - : (firstByte > 0xBF) ? 2 - : 1 - - if (i + bytesPerSequence <= end) { - var secondByte, thirdByte, fourthByte, tempCodePoint - - switch (bytesPerSequence) { - case 1: - if (firstByte < 0x80) { - codePoint = firstByte - } - break - case 2: - secondByte = buf[i + 1] - if ((secondByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) - if (tempCodePoint > 0x7F) { - codePoint = tempCodePoint - } - } - break - case 3: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) - if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { - codePoint = tempCodePoint - } - } - break - case 4: - secondByte = buf[i + 1] - thirdByte = buf[i + 2] - fourthByte = buf[i + 3] - if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { - tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) - if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { - codePoint = tempCodePoint - } - } - } - } - - if (codePoint === null) { - // we did not generate a valid codePoint so insert a - // replacement char (U+FFFD) and advance only 1 byte - codePoint = 0xFFFD - bytesPerSequence = 1 - } else if (codePoint > 0xFFFF) { - // encode to utf16 (surrogate pair dance) - codePoint -= 0x10000 - res.push(codePoint >>> 10 & 0x3FF | 0xD800) - codePoint = 0xDC00 | codePoint & 0x3FF - } - - res.push(codePoint) - i += bytesPerSequence - } - - return decodeCodePointsArray(res) -} - -// Based on http://stackoverflow.com/a/22747272/680742, the browser with -// the lowest limit is Chrome, with 0x10000 args. -// We go 1 magnitude less, for safety -var MAX_ARGUMENTS_LENGTH = 0x1000 - -function decodeCodePointsArray (codePoints) { - var len = codePoints.length - if (len <= MAX_ARGUMENTS_LENGTH) { - return String.fromCharCode.apply(String, codePoints) // avoid extra slice() - } - - // Decode in chunks to avoid "call stack size exceeded". - var res = '' - var i = 0 - while (i < len) { - res += String.fromCharCode.apply( - String, - codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) - ) - } - return res -} - -function asciiSlice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i] & 0x7F) - } - return ret -} - -function latin1Slice (buf, start, end) { - var ret = '' - end = Math.min(buf.length, end) - - for (var i = start; i < end; ++i) { - ret += String.fromCharCode(buf[i]) - } - return ret -} - -function hexSlice (buf, start, end) { - var len = buf.length - - if (!start || start < 0) start = 0 - if (!end || end < 0 || end > len) end = len - - var out = '' - for (var i = start; i < end; ++i) { - out += toHex(buf[i]) - } - return out -} - -function utf16leSlice (buf, start, end) { - var bytes = buf.slice(start, end) - var res = '' - for (var i = 0; i < bytes.length; i += 2) { - res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) - } - return res -} - -Buffer.prototype.slice = function slice (start, end) { - var len = this.length - start = ~~start - end = end === undefined ? len : ~~end - - if (start < 0) { - start += len - if (start < 0) start = 0 - } else if (start > len) { - start = len - } - - if (end < 0) { - end += len - if (end < 0) end = 0 - } else if (end > len) { - end = len - } - - if (end < start) end = start - - var newBuf = this.subarray(start, end) - // Return an augmented `Uint8Array` instance - newBuf.__proto__ = Buffer.prototype - return newBuf -} - -/* - * Need to make sure that buffer isn't trying to write out of bounds. - */ -function checkOffset (offset, ext, length) { - if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') - if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') -} - -Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - - return val -} - -Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - checkOffset(offset, byteLength, this.length) - } - - var val = this[offset + --byteLength] - var mul = 1 - while (byteLength > 0 && (mul *= 0x100)) { - val += this[offset + --byteLength] * mul - } - - return val -} - -Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - return this[offset] -} - -Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return this[offset] | (this[offset + 1] << 8) -} - -Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - return (this[offset] << 8) | this[offset + 1] -} - -Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return ((this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16)) + - (this[offset + 3] * 0x1000000) -} - -Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] * 0x1000000) + - ((this[offset + 1] << 16) | - (this[offset + 2] << 8) | - this[offset + 3]) -} - -Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var val = this[offset] - var mul = 1 - var i = 0 - while (++i < byteLength && (mul *= 0x100)) { - val += this[offset + i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) checkOffset(offset, byteLength, this.length) - - var i = byteLength - var mul = 1 - var val = this[offset + --i] - while (i > 0 && (mul *= 0x100)) { - val += this[offset + --i] * mul - } - mul *= 0x80 - - if (val >= mul) val -= Math.pow(2, 8 * byteLength) - - return val -} - -Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 1, this.length) - if (!(this[offset] & 0x80)) return (this[offset]) - return ((0xff - this[offset] + 1) * -1) -} - -Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset] | (this[offset + 1] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 2, this.length) - var val = this[offset + 1] | (this[offset] << 8) - return (val & 0x8000) ? val | 0xFFFF0000 : val -} - -Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset]) | - (this[offset + 1] << 8) | - (this[offset + 2] << 16) | - (this[offset + 3] << 24) -} - -Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - - return (this[offset] << 24) | - (this[offset + 1] << 16) | - (this[offset + 2] << 8) | - (this[offset + 3]) -} - -Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, true, 23, 4) -} - -Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 4, this.length) - return ieee754.read(this, offset, false, 23, 4) -} - -Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, true, 52, 8) -} - -Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { - offset = offset >>> 0 - if (!noAssert) checkOffset(offset, 8, this.length) - return ieee754.read(this, offset, false, 52, 8) -} - -function checkInt (buf, value, offset, ext, max, min) { - if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') - if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') - if (offset + ext > buf.length) throw new RangeError('Index out of range') -} - -Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var mul = 1 - var i = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - byteLength = byteLength >>> 0 - if (!noAssert) { - var maxBytes = Math.pow(2, 8 * byteLength) - 1 - checkInt(this, value, offset, byteLength, maxBytes, 0) - } - - var i = byteLength - 1 - var mul = 1 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - this[offset + i] = (value / mul) & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset + 3] = (value >>> 24) - this[offset + 2] = (value >>> 16) - this[offset + 1] = (value >>> 8) - this[offset] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = 0 - var mul = 1 - var sub = 0 - this[offset] = value & 0xFF - while (++i < byteLength && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - var limit = Math.pow(2, (8 * byteLength) - 1) - - checkInt(this, value, offset, byteLength, limit - 1, -limit) - } - - var i = byteLength - 1 - var mul = 1 - var sub = 0 - this[offset + i] = value & 0xFF - while (--i >= 0 && (mul *= 0x100)) { - if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { - sub = 1 - } - this[offset + i] = ((value / mul) >> 0) - sub & 0xFF - } - - return offset + byteLength -} - -Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) - if (value < 0) value = 0xff + value + 1 - this[offset] = (value & 0xff) - return offset + 1 -} - -Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - return offset + 2 -} - -Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) - this[offset] = (value >>> 8) - this[offset + 1] = (value & 0xff) - return offset + 2 -} - -Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - this[offset] = (value & 0xff) - this[offset + 1] = (value >>> 8) - this[offset + 2] = (value >>> 16) - this[offset + 3] = (value >>> 24) - return offset + 4 -} - -Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) - if (value < 0) value = 0xffffffff + value + 1 - this[offset] = (value >>> 24) - this[offset + 1] = (value >>> 16) - this[offset + 2] = (value >>> 8) - this[offset + 3] = (value & 0xff) - return offset + 4 -} - -function checkIEEE754 (buf, value, offset, ext, max, min) { - if (offset + ext > buf.length) throw new RangeError('Index out of range') - if (offset < 0) throw new RangeError('Index out of range') -} - -function writeFloat (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) - } - ieee754.write(buf, value, offset, littleEndian, 23, 4) - return offset + 4 -} - -Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { - return writeFloat(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { - return writeFloat(this, value, offset, false, noAssert) -} - -function writeDouble (buf, value, offset, littleEndian, noAssert) { - value = +value - offset = offset >>> 0 - if (!noAssert) { - checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) - } - ieee754.write(buf, value, offset, littleEndian, 52, 8) - return offset + 8 -} - -Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { - return writeDouble(this, value, offset, true, noAssert) -} - -Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { - return writeDouble(this, value, offset, false, noAssert) -} - -// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) -Buffer.prototype.copy = function copy (target, targetStart, start, end) { - if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer') - if (!start) start = 0 - if (!end && end !== 0) end = this.length - if (targetStart >= target.length) targetStart = target.length - if (!targetStart) targetStart = 0 - if (end > 0 && end < start) end = start - - // Copy 0 bytes; we're done - if (end === start) return 0 - if (target.length === 0 || this.length === 0) return 0 - - // Fatal error conditions - if (targetStart < 0) { - throw new RangeError('targetStart out of bounds') - } - if (start < 0 || start >= this.length) throw new RangeError('Index out of range') - if (end < 0) throw new RangeError('sourceEnd out of bounds') - - // Are we oob? - if (end > this.length) end = this.length - if (target.length - targetStart < end - start) { - end = target.length - targetStart + start - } - - var len = end - start - - if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') { - // Use built-in when available, missing from IE11 - this.copyWithin(targetStart, start, end) - } else if (this === target && start < targetStart && targetStart < end) { - // descending copy from end - for (var i = len - 1; i >= 0; --i) { - target[i + targetStart] = this[i + start] - } - } else { - Uint8Array.prototype.set.call( - target, - this.subarray(start, end), - targetStart - ) - } - - return len -} - -// Usage: -// buffer.fill(number[, offset[, end]]) -// buffer.fill(buffer[, offset[, end]]) -// buffer.fill(string[, offset[, end]][, encoding]) -Buffer.prototype.fill = function fill (val, start, end, encoding) { - // Handle string cases: - if (typeof val === 'string') { - if (typeof start === 'string') { - encoding = start - start = 0 - end = this.length - } else if (typeof end === 'string') { - encoding = end - end = this.length - } - if (encoding !== undefined && typeof encoding !== 'string') { - throw new TypeError('encoding must be a string') - } - if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { - throw new TypeError('Unknown encoding: ' + encoding) - } - if (val.length === 1) { - var code = val.charCodeAt(0) - if ((encoding === 'utf8' && code < 128) || - encoding === 'latin1') { - // Fast path: If `val` fits into a single byte, use that numeric value. - val = code - } - } - } else if (typeof val === 'number') { - val = val & 255 - } - - // Invalid ranges are not set to a default, so can range check early. - if (start < 0 || this.length < start || this.length < end) { - throw new RangeError('Out of range index') - } - - if (end <= start) { - return this - } - - start = start >>> 0 - end = end === undefined ? this.length : end >>> 0 - - if (!val) val = 0 - - var i - if (typeof val === 'number') { - for (i = start; i < end; ++i) { - this[i] = val - } - } else { - var bytes = Buffer.isBuffer(val) - ? val - : Buffer.from(val, encoding) - var len = bytes.length - if (len === 0) { - throw new TypeError('The value "' + val + - '" is invalid for argument "value"') - } - for (i = 0; i < end - start; ++i) { - this[i + start] = bytes[i % len] - } - } - - return this -} - -// HELPER FUNCTIONS -// ================ - -var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g - -function base64clean (str) { - // Node takes equal signs as end of the Base64 encoding - str = str.split('=')[0] - // Node strips out invalid characters like \n and \t from the string, base64-js does not - str = str.trim().replace(INVALID_BASE64_RE, '') - // Node converts strings with length < 2 to '' - if (str.length < 2) return '' - // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not - while (str.length % 4 !== 0) { - str = str + '=' - } - return str -} - -function toHex (n) { - if (n < 16) return '0' + n.toString(16) - return n.toString(16) -} - -function utf8ToBytes (string, units) { - units = units || Infinity - var codePoint - var length = string.length - var leadSurrogate = null - var bytes = [] - - for (var i = 0; i < length; ++i) { - codePoint = string.charCodeAt(i) - - // is surrogate component - if (codePoint > 0xD7FF && codePoint < 0xE000) { - // last char was a lead - if (!leadSurrogate) { - // no lead yet - if (codePoint > 0xDBFF) { - // unexpected trail - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } else if (i + 1 === length) { - // unpaired lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - continue - } - - // valid lead - leadSurrogate = codePoint - - continue - } - - // 2 leads in a row - if (codePoint < 0xDC00) { - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - leadSurrogate = codePoint - continue - } - - // valid surrogate pair - codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 - } else if (leadSurrogate) { - // valid bmp char, but last char was a lead - if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) - } - - leadSurrogate = null - - // encode utf8 - if (codePoint < 0x80) { - if ((units -= 1) < 0) break - bytes.push(codePoint) - } else if (codePoint < 0x800) { - if ((units -= 2) < 0) break - bytes.push( - codePoint >> 0x6 | 0xC0, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x10000) { - if ((units -= 3) < 0) break - bytes.push( - codePoint >> 0xC | 0xE0, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else if (codePoint < 0x110000) { - if ((units -= 4) < 0) break - bytes.push( - codePoint >> 0x12 | 0xF0, - codePoint >> 0xC & 0x3F | 0x80, - codePoint >> 0x6 & 0x3F | 0x80, - codePoint & 0x3F | 0x80 - ) - } else { - throw new Error('Invalid code point') - } - } - - return bytes -} - -function asciiToBytes (str) { - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - // Node's code seems to be doing this and not & 0x7F.. - byteArray.push(str.charCodeAt(i) & 0xFF) - } - return byteArray -} - -function utf16leToBytes (str, units) { - var c, hi, lo - var byteArray = [] - for (var i = 0; i < str.length; ++i) { - if ((units -= 2) < 0) break - - c = str.charCodeAt(i) - hi = c >> 8 - lo = c % 256 - byteArray.push(lo) - byteArray.push(hi) - } - - return byteArray -} - -function base64ToBytes (str) { - return base64.toByteArray(base64clean(str)) -} - -function blitBuffer (src, dst, offset, length) { - for (var i = 0; i < length; ++i) { - if ((i + offset >= dst.length) || (i >= src.length)) break - dst[i + offset] = src[i] - } - return i -} - -// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass -// the `instanceof` check but they should be treated as of that type. -// See: https://github.com/feross/buffer/issues/166 -function isInstance (obj, type) { - return obj instanceof type || - (obj != null && obj.constructor != null && obj.constructor.name != null && - obj.constructor.name === type.name) -} -function numberIsNaN (obj) { - // For IE11 support - return obj !== obj // eslint-disable-line no-self-compare -} - -},{"base64-js":5,"ieee754":45}],13:[function(require,module,exports){ +},{}],5:[function(require,module,exports){ (function (process){ var tty = require('tty'); var encode = require('./lib/encode'); @@ -10239,7 +6318,7 @@ var extractCodes = exports.extractCodes = function (buf) { } }).call(this,require('_process')) -},{"./lib/encode":14,"_process":114,"stream":128,"tty":145}],14:[function(require,module,exports){ +},{"./lib/encode":6,"_process":117,"stream":139,"tty":143}],6:[function(require,module,exports){ (function (Buffer){ var encode = module.exports = function (xs) { function bytes (s) { @@ -10261,7 +6340,7 @@ var ord = encode.ord = function ord (c) { }; }).call(this,require("buffer").Buffer) -},{"buffer":12}],15:[function(require,module,exports){ +},{"buffer":47}],7:[function(require,module,exports){ (function (Buffer){ /**! * contentstream - index.js @@ -10310,7 +6389,1751 @@ ContentStream.prototype._read = function (n) { }; }).call(this,require("buffer").Buffer) -},{"buffer":12,"readable-stream":122,"util":152}],16:[function(require,module,exports){ +},{"buffer":47,"readable-stream":13,"util":150}],8:[function(require,module,exports){ +(function (process){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a duplex stream is just a stream that is both readable and writable. +// Since JS doesn't have multiple prototypal inheritance, this class +// prototypally inherits from Readable, and then parasitically from +// Writable. + +module.exports = Duplex; + +/**/ +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) keys.push(key); + return keys; +} +/**/ + + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +var Readable = require('./_stream_readable'); +var Writable = require('./_stream_writable'); + +util.inherits(Duplex, Readable); + +forEach(objectKeys(Writable.prototype), function(method) { + if (!Duplex.prototype[method]) + Duplex.prototype[method] = Writable.prototype[method]; +}); + +function Duplex(options) { + if (!(this instanceof Duplex)) + return new Duplex(options); + + Readable.call(this, options); + Writable.call(this, options); + + if (options && options.readable === false) + this.readable = false; + + if (options && options.writable === false) + this.writable = false; + + this.allowHalfOpen = true; + if (options && options.allowHalfOpen === false) + this.allowHalfOpen = false; + + this.once('end', onend); +} + +// the no-half-open enforcer +function onend() { + // if we allow half-open state, or if the writable side ended, + // then we're ok. + if (this.allowHalfOpen || this._writableState.ended) + return; + + // no more data can be written. + // But allow more writes to happen in this tick. + process.nextTick(this.end.bind(this)); +} + +function forEach (xs, f) { + for (var i = 0, l = xs.length; i < l; i++) { + f(xs[i], i); + } +} + +}).call(this,require('_process')) +},{"./_stream_readable":10,"./_stream_writable":12,"_process":117,"core-util-is":14,"inherits":70}],9:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// a passthrough stream. +// basically just the most minimal sort of Transform stream. +// Every written chunk gets output as-is. + +module.exports = PassThrough; + +var Transform = require('./_stream_transform'); + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +util.inherits(PassThrough, Transform); + +function PassThrough(options) { + if (!(this instanceof PassThrough)) + return new PassThrough(options); + + Transform.call(this, options); +} + +PassThrough.prototype._transform = function(chunk, encoding, cb) { + cb(null, chunk); +}; + +},{"./_stream_transform":11,"core-util-is":14,"inherits":70}],10:[function(require,module,exports){ +(function (process){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +module.exports = Readable; + +/**/ +var isArray = require('isarray'); +/**/ + + +/**/ +var Buffer = require('buffer').Buffer; +/**/ + +Readable.ReadableState = ReadableState; + +var EE = require('events').EventEmitter; + +/**/ +if (!EE.listenerCount) EE.listenerCount = function(emitter, type) { + return emitter.listeners(type).length; +}; +/**/ + +var Stream = require('stream'); + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +var StringDecoder; + +util.inherits(Readable, Stream); + +function ReadableState(options, stream) { + options = options || {}; + + // the point at which it stops calling _read() to fill the buffer + // Note: 0 is a valid value, means "don't call _read preemptively ever" + var hwm = options.highWaterMark; + this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024; + + // cast to ints. + this.highWaterMark = ~~this.highWaterMark; + + this.buffer = []; + this.length = 0; + this.pipes = null; + this.pipesCount = 0; + this.flowing = false; + this.ended = false; + this.endEmitted = false; + this.reading = false; + + // In streams that never have any data, and do push(null) right away, + // the consumer can miss the 'end' event if they do some I/O before + // consuming the stream. So, we don't emit('end') until some reading + // happens. + this.calledRead = false; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, becuase any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // whenever we return null, then we set a flag to say + // that we're awaiting a 'readable' event emission. + this.needReadable = false; + this.emittedReadable = false; + this.readableListening = false; + + + // object stream flag. Used to make read(n) ignore n and to + // make all the buffer merging and length checks go away + this.objectMode = !!options.objectMode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // when piping, we only care about 'readable' events that happen + // after read()ing all the bytes and not getting any pushback. + this.ranOut = false; + + // the number of writers that are awaiting a drain event in .pipe()s + this.awaitDrain = 0; + + // if true, a maybeReadMore has been scheduled + this.readingMore = false; + + this.decoder = null; + this.encoding = null; + if (options.encoding) { + if (!StringDecoder) + StringDecoder = require('string_decoder/').StringDecoder; + this.decoder = new StringDecoder(options.encoding); + this.encoding = options.encoding; + } +} + +function Readable(options) { + if (!(this instanceof Readable)) + return new Readable(options); + + this._readableState = new ReadableState(options, this); + + // legacy + this.readable = true; + + Stream.call(this); +} + +// Manually shove something into the read() buffer. +// This returns true if the highWaterMark has not been hit yet, +// similar to how Writable.write() returns true if you should +// write() some more. +Readable.prototype.push = function(chunk, encoding) { + var state = this._readableState; + + if (typeof chunk === 'string' && !state.objectMode) { + encoding = encoding || state.defaultEncoding; + if (encoding !== state.encoding) { + chunk = new Buffer(chunk, encoding); + encoding = ''; + } + } + + return readableAddChunk(this, state, chunk, encoding, false); +}; + +// Unshift should *always* be something directly out of read() +Readable.prototype.unshift = function(chunk) { + var state = this._readableState; + return readableAddChunk(this, state, chunk, '', true); +}; + +function readableAddChunk(stream, state, chunk, encoding, addToFront) { + var er = chunkInvalid(state, chunk); + if (er) { + stream.emit('error', er); + } else if (chunk === null || chunk === undefined) { + state.reading = false; + if (!state.ended) + onEofChunk(stream, state); + } else if (state.objectMode || chunk && chunk.length > 0) { + if (state.ended && !addToFront) { + var e = new Error('stream.push() after EOF'); + stream.emit('error', e); + } else if (state.endEmitted && addToFront) { + var e = new Error('stream.unshift() after end event'); + stream.emit('error', e); + } else { + if (state.decoder && !addToFront && !encoding) + chunk = state.decoder.write(chunk); + + // update the buffer info. + state.length += state.objectMode ? 1 : chunk.length; + if (addToFront) { + state.buffer.unshift(chunk); + } else { + state.reading = false; + state.buffer.push(chunk); + } + + if (state.needReadable) + emitReadable(stream); + + maybeReadMore(stream, state); + } + } else if (!addToFront) { + state.reading = false; + } + + return needMoreData(state); +} + + + +// if it's past the high water mark, we can push in some more. +// Also, if we have no data yet, we can stand some +// more bytes. This is to work around cases where hwm=0, +// such as the repl. Also, if the push() triggered a +// readable event, and the user called read(largeNumber) such that +// needReadable was set, then we ought to push more, so that another +// 'readable' event will be triggered. +function needMoreData(state) { + return !state.ended && + (state.needReadable || + state.length < state.highWaterMark || + state.length === 0); +} + +// backwards compatibility. +Readable.prototype.setEncoding = function(enc) { + if (!StringDecoder) + StringDecoder = require('string_decoder/').StringDecoder; + this._readableState.decoder = new StringDecoder(enc); + this._readableState.encoding = enc; +}; + +// Don't raise the hwm > 128MB +var MAX_HWM = 0x800000; +function roundUpToNextPowerOf2(n) { + if (n >= MAX_HWM) { + n = MAX_HWM; + } else { + // Get the next highest power of 2 + n--; + for (var p = 1; p < 32; p <<= 1) n |= n >> p; + n++; + } + return n; +} + +function howMuchToRead(n, state) { + if (state.length === 0 && state.ended) + return 0; + + if (state.objectMode) + return n === 0 ? 0 : 1; + + if (n === null || isNaN(n)) { + // only flow one buffer at a time + if (state.flowing && state.buffer.length) + return state.buffer[0].length; + else + return state.length; + } + + if (n <= 0) + return 0; + + // If we're asking for more than the target buffer level, + // then raise the water mark. Bump up to the next highest + // power of 2, to prevent increasing it excessively in tiny + // amounts. + if (n > state.highWaterMark) + state.highWaterMark = roundUpToNextPowerOf2(n); + + // don't have that much. return null, unless we've ended. + if (n > state.length) { + if (!state.ended) { + state.needReadable = true; + return 0; + } else + return state.length; + } + + return n; +} + +// you can override either this method, or the async _read(n) below. +Readable.prototype.read = function(n) { + var state = this._readableState; + state.calledRead = true; + var nOrig = n; + var ret; + + if (typeof n !== 'number' || n > 0) + state.emittedReadable = false; + + // if we're doing read(0) to trigger a readable event, but we + // already have a bunch of data in the buffer, then just trigger + // the 'readable' event and move on. + if (n === 0 && + state.needReadable && + (state.length >= state.highWaterMark || state.ended)) { + emitReadable(this); + return null; + } + + n = howMuchToRead(n, state); + + // if we've ended, and we're now clear, then finish it up. + if (n === 0 && state.ended) { + ret = null; + + // In cases where the decoder did not receive enough data + // to produce a full chunk, then immediately received an + // EOF, state.buffer will contain [, ]. + // howMuchToRead will see this and coerce the amount to + // read to zero (because it's looking at the length of the + // first in state.buffer), and we'll end up here. + // + // This can only happen via state.decoder -- no other venue + // exists for pushing a zero-length chunk into state.buffer + // and triggering this behavior. In this case, we return our + // remaining data and end the stream, if appropriate. + if (state.length > 0 && state.decoder) { + ret = fromList(n, state); + state.length -= ret.length; + } + + if (state.length === 0) + endReadable(this); + + return ret; + } + + // All the actual chunk generation logic needs to be + // *below* the call to _read. The reason is that in certain + // synthetic stream cases, such as passthrough streams, _read + // may be a completely synchronous operation which may change + // the state of the read buffer, providing enough data when + // before there was *not* enough. + // + // So, the steps are: + // 1. Figure out what the state of things will be after we do + // a read from the buffer. + // + // 2. If that resulting state will trigger a _read, then call _read. + // Note that this may be asynchronous, or synchronous. Yes, it is + // deeply ugly to write APIs this way, but that still doesn't mean + // that the Readable class should behave improperly, as streams are + // designed to be sync/async agnostic. + // Take note if the _read call is sync or async (ie, if the read call + // has returned yet), so that we know whether or not it's safe to emit + // 'readable' etc. + // + // 3. Actually pull the requested chunks out of the buffer and return. + + // if we need a readable event, then we need to do some reading. + var doRead = state.needReadable; + + // if we currently have less than the highWaterMark, then also read some + if (state.length - n <= state.highWaterMark) + doRead = true; + + // however, if we've ended, then there's no point, and if we're already + // reading, then it's unnecessary. + if (state.ended || state.reading) + doRead = false; + + if (doRead) { + state.reading = true; + state.sync = true; + // if the length is currently zero, then we *need* a readable event. + if (state.length === 0) + state.needReadable = true; + // call internal read method + this._read(state.highWaterMark); + state.sync = false; + } + + // If _read called its callback synchronously, then `reading` + // will be false, and we need to re-evaluate how much data we + // can return to the user. + if (doRead && !state.reading) + n = howMuchToRead(nOrig, state); + + if (n > 0) + ret = fromList(n, state); + else + ret = null; + + if (ret === null) { + state.needReadable = true; + n = 0; + } + + state.length -= n; + + // If we have nothing in the buffer, then we want to know + // as soon as we *do* get something into the buffer. + if (state.length === 0 && !state.ended) + state.needReadable = true; + + // If we happened to read() exactly the remaining amount in the + // buffer, and the EOF has been seen at this point, then make sure + // that we emit 'end' on the very next tick. + if (state.ended && !state.endEmitted && state.length === 0) + endReadable(this); + + return ret; +}; + +function chunkInvalid(state, chunk) { + var er = null; + if (!Buffer.isBuffer(chunk) && + 'string' !== typeof chunk && + chunk !== null && + chunk !== undefined && + !state.objectMode) { + er = new TypeError('Invalid non-string/buffer chunk'); + } + return er; +} + + +function onEofChunk(stream, state) { + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) { + state.buffer.push(chunk); + state.length += state.objectMode ? 1 : chunk.length; + } + } + state.ended = true; + + // if we've ended and we have some data left, then emit + // 'readable' now to make sure it gets picked up. + if (state.length > 0) + emitReadable(stream); + else + endReadable(stream); +} + +// Don't emit readable right away in sync mode, because this can trigger +// another read() call => stack overflow. This way, it might trigger +// a nextTick recursion warning, but that's not so bad. +function emitReadable(stream) { + var state = stream._readableState; + state.needReadable = false; + if (state.emittedReadable) + return; + + state.emittedReadable = true; + if (state.sync) + process.nextTick(function() { + emitReadable_(stream); + }); + else + emitReadable_(stream); +} + +function emitReadable_(stream) { + stream.emit('readable'); +} + + +// at this point, the user has presumably seen the 'readable' event, +// and called read() to consume some data. that may have triggered +// in turn another _read(n) call, in which case reading = true if +// it's in progress. +// However, if we're not ended, or reading, and the length < hwm, +// then go ahead and try to read some more preemptively. +function maybeReadMore(stream, state) { + if (!state.readingMore) { + state.readingMore = true; + process.nextTick(function() { + maybeReadMore_(stream, state); + }); + } +} + +function maybeReadMore_(stream, state) { + var len = state.length; + while (!state.reading && !state.flowing && !state.ended && + state.length < state.highWaterMark) { + stream.read(0); + if (len === state.length) + // didn't get any data, stop spinning. + break; + else + len = state.length; + } + state.readingMore = false; +} + +// abstract method. to be overridden in specific implementation classes. +// call cb(er, data) where data is <= n in length. +// for virtual (non-string, non-buffer) streams, "length" is somewhat +// arbitrary, and perhaps not very meaningful. +Readable.prototype._read = function(n) { + this.emit('error', new Error('not implemented')); +}; + +Readable.prototype.pipe = function(dest, pipeOpts) { + var src = this; + var state = this._readableState; + + switch (state.pipesCount) { + case 0: + state.pipes = dest; + break; + case 1: + state.pipes = [state.pipes, dest]; + break; + default: + state.pipes.push(dest); + break; + } + state.pipesCount += 1; + + var doEnd = (!pipeOpts || pipeOpts.end !== false) && + dest !== process.stdout && + dest !== process.stderr; + + var endFn = doEnd ? onend : cleanup; + if (state.endEmitted) + process.nextTick(endFn); + else + src.once('end', endFn); + + dest.on('unpipe', onunpipe); + function onunpipe(readable) { + if (readable !== src) return; + cleanup(); + } + + function onend() { + dest.end(); + } + + // when the dest drains, it reduces the awaitDrain counter + // on the source. This would be more elegant with a .once() + // handler in flow(), but adding and removing repeatedly is + // too slow. + var ondrain = pipeOnDrain(src); + dest.on('drain', ondrain); + + function cleanup() { + // cleanup event handlers once the pipe is broken + dest.removeListener('close', onclose); + dest.removeListener('finish', onfinish); + dest.removeListener('drain', ondrain); + dest.removeListener('error', onerror); + dest.removeListener('unpipe', onunpipe); + src.removeListener('end', onend); + src.removeListener('end', cleanup); + + // if the reader is waiting for a drain event from this + // specific writer, then it would cause it to never start + // flowing again. + // So, if this is awaiting a drain, then we just call it now. + // If we don't know, then assume that we are waiting for one. + if (!dest._writableState || dest._writableState.needDrain) + ondrain(); + } + + // if the dest has an error, then stop piping into it. + // however, don't suppress the throwing behavior for this. + function onerror(er) { + unpipe(); + dest.removeListener('error', onerror); + if (EE.listenerCount(dest, 'error') === 0) + dest.emit('error', er); + } + // This is a brutally ugly hack to make sure that our error handler + // is attached before any userland ones. NEVER DO THIS. + if (!dest._events || !dest._events.error) + dest.on('error', onerror); + else if (isArray(dest._events.error)) + dest._events.error.unshift(onerror); + else + dest._events.error = [onerror, dest._events.error]; + + + + // Both close and finish should trigger unpipe, but only once. + function onclose() { + dest.removeListener('finish', onfinish); + unpipe(); + } + dest.once('close', onclose); + function onfinish() { + dest.removeListener('close', onclose); + unpipe(); + } + dest.once('finish', onfinish); + + function unpipe() { + src.unpipe(dest); + } + + // tell the dest that it's being piped to + dest.emit('pipe', src); + + // start the flow if it hasn't been started already. + if (!state.flowing) { + // the handler that waits for readable events after all + // the data gets sucked out in flow. + // This would be easier to follow with a .once() handler + // in flow(), but that is too slow. + this.on('readable', pipeOnReadable); + + state.flowing = true; + process.nextTick(function() { + flow(src); + }); + } + + return dest; +}; + +function pipeOnDrain(src) { + return function() { + var dest = this; + var state = src._readableState; + state.awaitDrain--; + if (state.awaitDrain === 0) + flow(src); + }; +} + +function flow(src) { + var state = src._readableState; + var chunk; + state.awaitDrain = 0; + + function write(dest, i, list) { + var written = dest.write(chunk); + if (false === written) { + state.awaitDrain++; + } + } + + while (state.pipesCount && null !== (chunk = src.read())) { + + if (state.pipesCount === 1) + write(state.pipes, 0, null); + else + forEach(state.pipes, write); + + src.emit('data', chunk); + + // if anyone needs a drain, then we have to wait for that. + if (state.awaitDrain > 0) + return; + } + + // if every destination was unpiped, either before entering this + // function, or in the while loop, then stop flowing. + // + // NB: This is a pretty rare edge case. + if (state.pipesCount === 0) { + state.flowing = false; + + // if there were data event listeners added, then switch to old mode. + if (EE.listenerCount(src, 'data') > 0) + emitDataEvents(src); + return; + } + + // at this point, no one needed a drain, so we just ran out of data + // on the next readable event, start it over again. + state.ranOut = true; +} + +function pipeOnReadable() { + if (this._readableState.ranOut) { + this._readableState.ranOut = false; + flow(this); + } +} + + +Readable.prototype.unpipe = function(dest) { + var state = this._readableState; + + // if we're not piping anywhere, then do nothing. + if (state.pipesCount === 0) + return this; + + // just one destination. most common case. + if (state.pipesCount === 1) { + // passed in one, but it's not the right one. + if (dest && dest !== state.pipes) + return this; + + if (!dest) + dest = state.pipes; + + // got a match. + state.pipes = null; + state.pipesCount = 0; + this.removeListener('readable', pipeOnReadable); + state.flowing = false; + if (dest) + dest.emit('unpipe', this); + return this; + } + + // slow case. multiple pipe destinations. + + if (!dest) { + // remove all. + var dests = state.pipes; + var len = state.pipesCount; + state.pipes = null; + state.pipesCount = 0; + this.removeListener('readable', pipeOnReadable); + state.flowing = false; + + for (var i = 0; i < len; i++) + dests[i].emit('unpipe', this); + return this; + } + + // try to find the right one. + var i = indexOf(state.pipes, dest); + if (i === -1) + return this; + + state.pipes.splice(i, 1); + state.pipesCount -= 1; + if (state.pipesCount === 1) + state.pipes = state.pipes[0]; + + dest.emit('unpipe', this); + + return this; +}; + +// set up data events if they are asked for +// Ensure readable listeners eventually get something +Readable.prototype.on = function(ev, fn) { + var res = Stream.prototype.on.call(this, ev, fn); + + if (ev === 'data' && !this._readableState.flowing) + emitDataEvents(this); + + if (ev === 'readable' && this.readable) { + var state = this._readableState; + if (!state.readableListening) { + state.readableListening = true; + state.emittedReadable = false; + state.needReadable = true; + if (!state.reading) { + this.read(0); + } else if (state.length) { + emitReadable(this, state); + } + } + } + + return res; +}; +Readable.prototype.addListener = Readable.prototype.on; + +// pause() and resume() are remnants of the legacy readable stream API +// If the user uses them, then switch into old mode. +Readable.prototype.resume = function() { + emitDataEvents(this); + this.read(0); + this.emit('resume'); +}; + +Readable.prototype.pause = function() { + emitDataEvents(this, true); + this.emit('pause'); +}; + +function emitDataEvents(stream, startPaused) { + var state = stream._readableState; + + if (state.flowing) { + // https://github.com/isaacs/readable-stream/issues/16 + throw new Error('Cannot switch to old mode now.'); + } + + var paused = startPaused || false; + var readable = false; + + // convert to an old-style stream. + stream.readable = true; + stream.pipe = Stream.prototype.pipe; + stream.on = stream.addListener = Stream.prototype.on; + + stream.on('readable', function() { + readable = true; + + var c; + while (!paused && (null !== (c = stream.read()))) + stream.emit('data', c); + + if (c === null) { + readable = false; + stream._readableState.needReadable = true; + } + }); + + stream.pause = function() { + paused = true; + this.emit('pause'); + }; + + stream.resume = function() { + paused = false; + if (readable) + process.nextTick(function() { + stream.emit('readable'); + }); + else + this.read(0); + this.emit('resume'); + }; + + // now make it start, just in case it hadn't already. + stream.emit('readable'); +} + +// wrap an old-style stream as the async data source. +// This is *not* part of the readable stream interface. +// It is an ugly unfortunate mess of history. +Readable.prototype.wrap = function(stream) { + var state = this._readableState; + var paused = false; + + var self = this; + stream.on('end', function() { + if (state.decoder && !state.ended) { + var chunk = state.decoder.end(); + if (chunk && chunk.length) + self.push(chunk); + } + + self.push(null); + }); + + stream.on('data', function(chunk) { + if (state.decoder) + chunk = state.decoder.write(chunk); + + // don't skip over falsy values in objectMode + //if (state.objectMode && util.isNullOrUndefined(chunk)) + if (state.objectMode && (chunk === null || chunk === undefined)) + return; + else if (!state.objectMode && (!chunk || !chunk.length)) + return; + + var ret = self.push(chunk); + if (!ret) { + paused = true; + stream.pause(); + } + }); + + // proxy all the other methods. + // important when wrapping filters and duplexes. + for (var i in stream) { + if (typeof stream[i] === 'function' && + typeof this[i] === 'undefined') { + this[i] = function(method) { return function() { + return stream[method].apply(stream, arguments); + }}(i); + } + } + + // proxy certain important events. + var events = ['error', 'close', 'destroy', 'pause', 'resume']; + forEach(events, function(ev) { + stream.on(ev, self.emit.bind(self, ev)); + }); + + // when we try to consume some more bytes, simply unpause the + // underlying stream. + self._read = function(n) { + if (paused) { + paused = false; + stream.resume(); + } + }; + + return self; +}; + + + +// exposed for testing purposes only. +Readable._fromList = fromList; + +// Pluck off n bytes from an array of buffers. +// Length is the combined lengths of all the buffers in the list. +function fromList(n, state) { + var list = state.buffer; + var length = state.length; + var stringMode = !!state.decoder; + var objectMode = !!state.objectMode; + var ret; + + // nothing in the list, definitely empty. + if (list.length === 0) + return null; + + if (length === 0) + ret = null; + else if (objectMode) + ret = list.shift(); + else if (!n || n >= length) { + // read it all, truncate the array. + if (stringMode) + ret = list.join(''); + else + ret = Buffer.concat(list, length); + list.length = 0; + } else { + // read just some of it. + if (n < list[0].length) { + // just take a part of the first list item. + // slice is the same for buffers and strings. + var buf = list[0]; + ret = buf.slice(0, n); + list[0] = buf.slice(n); + } else if (n === list[0].length) { + // first list is a perfect match + ret = list.shift(); + } else { + // complex case. + // we have enough to cover it, but it spans past the first buffer. + if (stringMode) + ret = ''; + else + ret = new Buffer(n); + + var c = 0; + for (var i = 0, l = list.length; i < l && c < n; i++) { + var buf = list[0]; + var cpy = Math.min(n - c, buf.length); + + if (stringMode) + ret += buf.slice(0, cpy); + else + buf.copy(ret, c, 0, cpy); + + if (cpy < buf.length) + list[0] = buf.slice(cpy); + else + list.shift(); + + c += cpy; + } + } + } + + return ret; +} + +function endReadable(stream) { + var state = stream._readableState; + + // If we get here before consuming all the bytes, then that is a + // bug in node. Should never happen. + if (state.length > 0) + throw new Error('endReadable called on non-empty stream'); + + if (!state.endEmitted && state.calledRead) { + state.ended = true; + process.nextTick(function() { + // Check that we didn't get one last unshift. + if (!state.endEmitted && state.length === 0) { + state.endEmitted = true; + stream.readable = false; + stream.emit('end'); + } + }); + } +} + +function forEach (xs, f) { + for (var i = 0, l = xs.length; i < l; i++) { + f(xs[i], i); + } +} + +function indexOf (xs, x) { + for (var i = 0, l = xs.length; i < l; i++) { + if (xs[i] === x) return i; + } + return -1; +} + +}).call(this,require('_process')) +},{"_process":117,"buffer":47,"core-util-is":14,"events":48,"inherits":70,"isarray":73,"stream":139,"string_decoder/":140}],11:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + + +// a transform stream is a readable/writable stream where you do +// something with the data. Sometimes it's called a "filter", +// but that's not a great name for it, since that implies a thing where +// some bits pass through, and others are simply ignored. (That would +// be a valid example of a transform, of course.) +// +// While the output is causally related to the input, it's not a +// necessarily symmetric or synchronous transformation. For example, +// a zlib stream might take multiple plain-text writes(), and then +// emit a single compressed chunk some time in the future. +// +// Here's how this works: +// +// The Transform stream has all the aspects of the readable and writable +// stream classes. When you write(chunk), that calls _write(chunk,cb) +// internally, and returns false if there's a lot of pending writes +// buffered up. When you call read(), that calls _read(n) until +// there's enough pending readable data buffered up. +// +// In a transform stream, the written data is placed in a buffer. When +// _read(n) is called, it transforms the queued up data, calling the +// buffered _write cb's as it consumes chunks. If consuming a single +// written chunk would result in multiple output chunks, then the first +// outputted bit calls the readcb, and subsequent chunks just go into +// the read buffer, and will cause it to emit 'readable' if necessary. +// +// This way, back-pressure is actually determined by the reading side, +// since _read has to be called to start processing a new chunk. However, +// a pathological inflate type of transform can cause excessive buffering +// here. For example, imagine a stream where every byte of input is +// interpreted as an integer from 0-255, and then results in that many +// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in +// 1kb of data being output. In this case, you could write a very small +// amount of input, and end up with a very large amount of output. In +// such a pathological inflating mechanism, there'd be no way to tell +// the system to stop doing the transform. A single 4MB write could +// cause the system to run out of memory. +// +// However, even in such a pathological case, only a single written chunk +// would be consumed, and then the rest would wait (un-transformed) until +// the results of the previous transformed chunk were consumed. + +module.exports = Transform; + +var Duplex = require('./_stream_duplex'); + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +util.inherits(Transform, Duplex); + + +function TransformState(options, stream) { + this.afterTransform = function(er, data) { + return afterTransform(stream, er, data); + }; + + this.needTransform = false; + this.transforming = false; + this.writecb = null; + this.writechunk = null; +} + +function afterTransform(stream, er, data) { + var ts = stream._transformState; + ts.transforming = false; + + var cb = ts.writecb; + + if (!cb) + return stream.emit('error', new Error('no writecb in Transform class')); + + ts.writechunk = null; + ts.writecb = null; + + if (data !== null && data !== undefined) + stream.push(data); + + if (cb) + cb(er); + + var rs = stream._readableState; + rs.reading = false; + if (rs.needReadable || rs.length < rs.highWaterMark) { + stream._read(rs.highWaterMark); + } +} + + +function Transform(options) { + if (!(this instanceof Transform)) + return new Transform(options); + + Duplex.call(this, options); + + var ts = this._transformState = new TransformState(options, this); + + // when the writable side finishes, then flush out anything remaining. + var stream = this; + + // start out asking for a readable event once data is transformed. + this._readableState.needReadable = true; + + // we have implemented the _read method, and done the other things + // that Readable wants before the first _read call, so unset the + // sync guard flag. + this._readableState.sync = false; + + this.once('finish', function() { + if ('function' === typeof this._flush) + this._flush(function(er) { + done(stream, er); + }); + else + done(stream); + }); +} + +Transform.prototype.push = function(chunk, encoding) { + this._transformState.needTransform = false; + return Duplex.prototype.push.call(this, chunk, encoding); +}; + +// This is the part where you do stuff! +// override this function in implementation classes. +// 'chunk' is an input chunk. +// +// Call `push(newChunk)` to pass along transformed output +// to the readable side. You may call 'push' zero or more times. +// +// Call `cb(err)` when you are done with this chunk. If you pass +// an error, then that'll put the hurt on the whole operation. If you +// never call cb(), then you'll never get another chunk. +Transform.prototype._transform = function(chunk, encoding, cb) { + throw new Error('not implemented'); +}; + +Transform.prototype._write = function(chunk, encoding, cb) { + var ts = this._transformState; + ts.writecb = cb; + ts.writechunk = chunk; + ts.writeencoding = encoding; + if (!ts.transforming) { + var rs = this._readableState; + if (ts.needTransform || + rs.needReadable || + rs.length < rs.highWaterMark) + this._read(rs.highWaterMark); + } +}; + +// Doesn't matter what the args are here. +// _transform does all the work. +// That we got here means that the readable side wants more data. +Transform.prototype._read = function(n) { + var ts = this._transformState; + + if (ts.writechunk !== null && ts.writecb && !ts.transforming) { + ts.transforming = true; + this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); + } else { + // mark that we need a transform, so that any data that comes in + // will get processed, now that we've asked for it. + ts.needTransform = true; + } +}; + + +function done(stream, er) { + if (er) + return stream.emit('error', er); + + // if there's nothing in the write buffer, then that means + // that nothing more will ever be provided + var ws = stream._writableState; + var rs = stream._readableState; + var ts = stream._transformState; + + if (ws.length) + throw new Error('calling transform done when ws.length != 0'); + + if (ts.transforming) + throw new Error('calling transform done when still transforming'); + + return stream.push(null); +} + +},{"./_stream_duplex":8,"core-util-is":14,"inherits":70}],12:[function(require,module,exports){ +(function (process){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +// A bit simpler than readable streams. +// Implement an async ._write(chunk, cb), and it'll handle all +// the drain event emission and buffering. + +module.exports = Writable; + +/**/ +var Buffer = require('buffer').Buffer; +/**/ + +Writable.WritableState = WritableState; + + +/**/ +var util = require('core-util-is'); +util.inherits = require('inherits'); +/**/ + +var Stream = require('stream'); + +util.inherits(Writable, Stream); + +function WriteReq(chunk, encoding, cb) { + this.chunk = chunk; + this.encoding = encoding; + this.callback = cb; +} + +function WritableState(options, stream) { + options = options || {}; + + // the point at which write() starts returning false + // Note: 0 is a valid value, means that we always return false if + // the entire buffer is not flushed immediately on write() + var hwm = options.highWaterMark; + this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024; + + // object stream flag to indicate whether or not this stream + // contains buffers or objects. + this.objectMode = !!options.objectMode; + + // cast to ints. + this.highWaterMark = ~~this.highWaterMark; + + this.needDrain = false; + // at the start of calling end() + this.ending = false; + // when end() has been called, and returned + this.ended = false; + // when 'finish' is emitted + this.finished = false; + + // should we decode strings into buffers before passing to _write? + // this is here so that some node-core streams can optimize string + // handling at a lower level. + var noDecode = options.decodeStrings === false; + this.decodeStrings = !noDecode; + + // Crypto is kind of old and crusty. Historically, its default string + // encoding is 'binary' so we have to make this configurable. + // Everything else in the universe uses 'utf8', though. + this.defaultEncoding = options.defaultEncoding || 'utf8'; + + // not an actual buffer we keep track of, but a measurement + // of how much we're waiting to get pushed to some underlying + // socket or file. + this.length = 0; + + // a flag to see when we're in the middle of a write. + this.writing = false; + + // a flag to be able to tell if the onwrite cb is called immediately, + // or on a later tick. We set this to true at first, becuase any + // actions that shouldn't happen until "later" should generally also + // not happen before the first write call. + this.sync = true; + + // a flag to know if we're processing previously buffered items, which + // may call the _write() callback in the same tick, so that we don't + // end up in an overlapped onwrite situation. + this.bufferProcessing = false; + + // the callback that's passed to _write(chunk,cb) + this.onwrite = function(er) { + onwrite(stream, er); + }; + + // the callback that the user supplies to write(chunk,encoding,cb) + this.writecb = null; + + // the amount that is being written when _write is called. + this.writelen = 0; + + this.buffer = []; + + // True if the error was already emitted and should not be thrown again + this.errorEmitted = false; +} + +function Writable(options) { + var Duplex = require('./_stream_duplex'); + + // Writable ctor is applied to Duplexes, though they're not + // instanceof Writable, they're instanceof Readable. + if (!(this instanceof Writable) && !(this instanceof Duplex)) + return new Writable(options); + + this._writableState = new WritableState(options, this); + + // legacy. + this.writable = true; + + Stream.call(this); +} + +// Otherwise people can pipe Writable streams, which is just wrong. +Writable.prototype.pipe = function() { + this.emit('error', new Error('Cannot pipe. Not readable.')); +}; + + +function writeAfterEnd(stream, state, cb) { + var er = new Error('write after end'); + // TODO: defer error events consistently everywhere, not just the cb + stream.emit('error', er); + process.nextTick(function() { + cb(er); + }); +} + +// If we get something that is not a buffer, string, null, or undefined, +// and we're not in objectMode, then that's an error. +// Otherwise stream chunks are all considered to be of length=1, and the +// watermarks determine how many objects to keep in the buffer, rather than +// how many bytes or characters. +function validChunk(stream, state, chunk, cb) { + var valid = true; + if (!Buffer.isBuffer(chunk) && + 'string' !== typeof chunk && + chunk !== null && + chunk !== undefined && + !state.objectMode) { + var er = new TypeError('Invalid non-string/buffer chunk'); + stream.emit('error', er); + process.nextTick(function() { + cb(er); + }); + valid = false; + } + return valid; +} + +Writable.prototype.write = function(chunk, encoding, cb) { + var state = this._writableState; + var ret = false; + + if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (Buffer.isBuffer(chunk)) + encoding = 'buffer'; + else if (!encoding) + encoding = state.defaultEncoding; + + if (typeof cb !== 'function') + cb = function() {}; + + if (state.ended) + writeAfterEnd(this, state, cb); + else if (validChunk(this, state, chunk, cb)) + ret = writeOrBuffer(this, state, chunk, encoding, cb); + + return ret; +}; + +function decodeChunk(state, chunk, encoding) { + if (!state.objectMode && + state.decodeStrings !== false && + typeof chunk === 'string') { + chunk = new Buffer(chunk, encoding); + } + return chunk; +} + +// if we're already writing something, then just put this +// in the queue, and wait our turn. Otherwise, call _write +// If we return false, then we need a drain event, so set that flag. +function writeOrBuffer(stream, state, chunk, encoding, cb) { + chunk = decodeChunk(state, chunk, encoding); + if (Buffer.isBuffer(chunk)) + encoding = 'buffer'; + var len = state.objectMode ? 1 : chunk.length; + + state.length += len; + + var ret = state.length < state.highWaterMark; + // we must ensure that previous needDrain will not be reset to false. + if (!ret) + state.needDrain = true; + + if (state.writing) + state.buffer.push(new WriteReq(chunk, encoding, cb)); + else + doWrite(stream, state, len, chunk, encoding, cb); + + return ret; +} + +function doWrite(stream, state, len, chunk, encoding, cb) { + state.writelen = len; + state.writecb = cb; + state.writing = true; + state.sync = true; + stream._write(chunk, encoding, state.onwrite); + state.sync = false; +} + +function onwriteError(stream, state, sync, er, cb) { + if (sync) + process.nextTick(function() { + cb(er); + }); + else + cb(er); + + stream._writableState.errorEmitted = true; + stream.emit('error', er); +} + +function onwriteStateUpdate(state) { + state.writing = false; + state.writecb = null; + state.length -= state.writelen; + state.writelen = 0; +} + +function onwrite(stream, er) { + var state = stream._writableState; + var sync = state.sync; + var cb = state.writecb; + + onwriteStateUpdate(state); + + if (er) + onwriteError(stream, state, sync, er, cb); + else { + // Check if we're actually ready to finish, but don't emit yet + var finished = needFinish(stream, state); + + if (!finished && !state.bufferProcessing && state.buffer.length) + clearBuffer(stream, state); + + if (sync) { + process.nextTick(function() { + afterWrite(stream, state, finished, cb); + }); + } else { + afterWrite(stream, state, finished, cb); + } + } +} + +function afterWrite(stream, state, finished, cb) { + if (!finished) + onwriteDrain(stream, state); + cb(); + if (finished) + finishMaybe(stream, state); +} + +// Must force callback to be called on nextTick, so that we don't +// emit 'drain' before the write() consumer gets the 'false' return +// value, and has a chance to attach a 'drain' listener. +function onwriteDrain(stream, state) { + if (state.length === 0 && state.needDrain) { + state.needDrain = false; + stream.emit('drain'); + } +} + + +// if there's something in the buffer waiting, then process it +function clearBuffer(stream, state) { + state.bufferProcessing = true; + + for (var c = 0; c < state.buffer.length; c++) { + var entry = state.buffer[c]; + var chunk = entry.chunk; + var encoding = entry.encoding; + var cb = entry.callback; + var len = state.objectMode ? 1 : chunk.length; + + doWrite(stream, state, len, chunk, encoding, cb); + + // if we didn't call the onwrite immediately, then + // it means that we need to wait until it does. + // also, that means that the chunk and cb are currently + // being processed, so move the buffer counter past them. + if (state.writing) { + c++; + break; + } + } + + state.bufferProcessing = false; + if (c < state.buffer.length) + state.buffer = state.buffer.slice(c); + else + state.buffer.length = 0; +} + +Writable.prototype._write = function(chunk, encoding, cb) { + cb(new Error('not implemented')); +}; + +Writable.prototype.end = function(chunk, encoding, cb) { + var state = this._writableState; + + if (typeof chunk === 'function') { + cb = chunk; + chunk = null; + encoding = null; + } else if (typeof encoding === 'function') { + cb = encoding; + encoding = null; + } + + if (typeof chunk !== 'undefined' && chunk !== null) + this.write(chunk, encoding); + + // ignore unnecessary end() calls. + if (!state.ending && !state.finished) + endWritable(this, state, cb); +}; + + +function needFinish(stream, state) { + return (state.ending && + state.length === 0 && + !state.finished && + !state.writing); +} + +function finishMaybe(stream, state) { + var need = needFinish(stream, state); + if (need) { + state.finished = true; + stream.emit('finish'); + } + return need; +} + +function endWritable(stream, state, cb) { + state.ending = true; + finishMaybe(stream, state); + if (cb) { + if (state.finished) + process.nextTick(cb); + else + stream.once('finish', cb); + } + state.ended = true; +} + +}).call(this,require('_process')) +},{"./_stream_duplex":8,"_process":117,"buffer":47,"core-util-is":14,"inherits":70,"stream":139}],13:[function(require,module,exports){ +(function (process){ +var Stream = require('stream'); // hack to fix a circular dependency issue when used with browserify +exports = module.exports = require('./lib/_stream_readable.js'); +exports.Stream = Stream; +exports.Readable = exports; +exports.Writable = require('./lib/_stream_writable.js'); +exports.Duplex = require('./lib/_stream_duplex.js'); +exports.Transform = require('./lib/_stream_transform.js'); +exports.PassThrough = require('./lib/_stream_passthrough.js'); +if (!process.browser && process.env.READABLE_STREAM === 'disable') { + module.exports = require('stream'); +} + +}).call(this,require('_process')) +},{"./lib/_stream_duplex.js":8,"./lib/_stream_passthrough.js":9,"./lib/_stream_readable.js":10,"./lib/_stream_transform.js":11,"./lib/_stream_writable.js":12,"_process":117,"stream":139}],14:[function(require,module,exports){ (function (Buffer){ // Copyright Joyent, Inc. and other Node contributors. // @@ -10421,7 +8244,7 @@ function objectToString(o) { } }).call(this,{"isBuffer":require("../../is-buffer/index.js")}) -},{"../../is-buffer/index.js":57}],17:[function(require,module,exports){ +},{"../../is-buffer/index.js":72}],15:[function(require,module,exports){ "use strict" var createThunk = require("./lib/thunk.js") @@ -10532,7 +8355,7 @@ function compileCwise(user_args) { module.exports = compileCwise -},{"./lib/thunk.js":19}],18:[function(require,module,exports){ +},{"./lib/thunk.js":17}],16:[function(require,module,exports){ "use strict" var uniq = require("uniq") @@ -10892,7 +8715,7 @@ function generateCWiseOp(proc, typesig) { } module.exports = generateCWiseOp -},{"uniq":148}],19:[function(require,module,exports){ +},{"uniq":146}],17:[function(require,module,exports){ "use strict" // The function below is called when constructing a cwise function object, and does the following: @@ -10980,9 +8803,9 @@ function createThunk(proc) { module.exports = createThunk -},{"./compile.js":18}],20:[function(require,module,exports){ +},{"./compile.js":16}],18:[function(require,module,exports){ module.exports = require("cwise-compiler") -},{"cwise-compiler":17}],21:[function(require,module,exports){ +},{"cwise-compiler":15}],19:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -11052,7 +8875,7 @@ function dataUriToBuffer (uri) { } }).call(this,require("buffer").Buffer) -},{"buffer":12}],22:[function(require,module,exports){ +},{"buffer":47}],20:[function(require,module,exports){ "use strict" function dupe_array(count, value, i) { @@ -11102,532 +8925,7 @@ function dupe(count, value) { } module.exports = dupe -},{}],23:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -var objectCreate = Object.create || objectCreatePolyfill -var objectKeys = Object.keys || objectKeysPolyfill -var bind = Function.prototype.bind || functionBindPolyfill - -function EventEmitter() { - if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) { - this._events = objectCreate(null); - this._eventsCount = 0; - } - - this._maxListeners = this._maxListeners || undefined; -} -module.exports = EventEmitter; - -// Backwards-compat with node 0.10.x -EventEmitter.EventEmitter = EventEmitter; - -EventEmitter.prototype._events = undefined; -EventEmitter.prototype._maxListeners = undefined; - -// By default EventEmitters will print a warning if more than 10 listeners are -// added to it. This is a useful default which helps finding memory leaks. -var defaultMaxListeners = 10; - -var hasDefineProperty; -try { - var o = {}; - if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 }); - hasDefineProperty = o.x === 0; -} catch (err) { hasDefineProperty = false } -if (hasDefineProperty) { - Object.defineProperty(EventEmitter, 'defaultMaxListeners', { - enumerable: true, - get: function() { - return defaultMaxListeners; - }, - set: function(arg) { - // check whether the input is a positive number (whose value is zero or - // greater and not a NaN). - if (typeof arg !== 'number' || arg < 0 || arg !== arg) - throw new TypeError('"defaultMaxListeners" must be a positive number'); - defaultMaxListeners = arg; - } - }); -} else { - EventEmitter.defaultMaxListeners = defaultMaxListeners; -} - -// Obviously not all Emitters should be limited to 10. This function allows -// that to be increased. Set to zero for unlimited. -EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { - if (typeof n !== 'number' || n < 0 || isNaN(n)) - throw new TypeError('"n" argument must be a positive number'); - this._maxListeners = n; - return this; -}; - -function $getMaxListeners(that) { - if (that._maxListeners === undefined) - return EventEmitter.defaultMaxListeners; - return that._maxListeners; -} - -EventEmitter.prototype.getMaxListeners = function getMaxListeners() { - return $getMaxListeners(this); -}; - -// These standalone emit* functions are used to optimize calling of event -// handlers for fast cases because emit() itself often has a variable number of -// arguments and can be deoptimized because of that. These functions always have -// the same number of arguments and thus do not get deoptimized, so the code -// inside them can execute faster. -function emitNone(handler, isFn, self) { - if (isFn) - handler.call(self); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self); - } -} -function emitOne(handler, isFn, self, arg1) { - if (isFn) - handler.call(self, arg1); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1); - } -} -function emitTwo(handler, isFn, self, arg1, arg2) { - if (isFn) - handler.call(self, arg1, arg2); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1, arg2); - } -} -function emitThree(handler, isFn, self, arg1, arg2, arg3) { - if (isFn) - handler.call(self, arg1, arg2, arg3); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].call(self, arg1, arg2, arg3); - } -} - -function emitMany(handler, isFn, self, args) { - if (isFn) - handler.apply(self, args); - else { - var len = handler.length; - var listeners = arrayClone(handler, len); - for (var i = 0; i < len; ++i) - listeners[i].apply(self, args); - } -} - -EventEmitter.prototype.emit = function emit(type) { - var er, handler, len, args, i, events; - var doError = (type === 'error'); - - events = this._events; - if (events) - doError = (doError && events.error == null); - else if (!doError) - return false; - - // If there is no 'error' event listener then throw. - if (doError) { - if (arguments.length > 1) - er = arguments[1]; - if (er instanceof Error) { - throw er; // Unhandled 'error' event - } else { - // At least give some kind of context to the user - var err = new Error('Unhandled "error" event. (' + er + ')'); - err.context = er; - throw err; - } - return false; - } - - handler = events[type]; - - if (!handler) - return false; - - var isFn = typeof handler === 'function'; - len = arguments.length; - switch (len) { - // fast cases - case 1: - emitNone(handler, isFn, this); - break; - case 2: - emitOne(handler, isFn, this, arguments[1]); - break; - case 3: - emitTwo(handler, isFn, this, arguments[1], arguments[2]); - break; - case 4: - emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]); - break; - // slower - default: - args = new Array(len - 1); - for (i = 1; i < len; i++) - args[i - 1] = arguments[i]; - emitMany(handler, isFn, this, args); - } - - return true; -}; - -function _addListener(target, type, listener, prepend) { - var m; - var events; - var existing; - - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - - events = target._events; - if (!events) { - events = target._events = objectCreate(null); - target._eventsCount = 0; - } else { - // To avoid recursion in the case that type === "newListener"! Before - // adding it to the listeners, first emit "newListener". - if (events.newListener) { - target.emit('newListener', type, - listener.listener ? listener.listener : listener); - - // Re-assign `events` because a newListener handler could have caused the - // this._events to be assigned to a new object - events = target._events; - } - existing = events[type]; - } - - if (!existing) { - // Optimize the case of one listener. Don't need the extra array object. - existing = events[type] = listener; - ++target._eventsCount; - } else { - if (typeof existing === 'function') { - // Adding the second element, need to change to array. - existing = events[type] = - prepend ? [listener, existing] : [existing, listener]; - } else { - // If we've already got an array, just append. - if (prepend) { - existing.unshift(listener); - } else { - existing.push(listener); - } - } - - // Check for listener leak - if (!existing.warned) { - m = $getMaxListeners(target); - if (m && m > 0 && existing.length > m) { - existing.warned = true; - var w = new Error('Possible EventEmitter memory leak detected. ' + - existing.length + ' "' + String(type) + '" listeners ' + - 'added. Use emitter.setMaxListeners() to ' + - 'increase limit.'); - w.name = 'MaxListenersExceededWarning'; - w.emitter = target; - w.type = type; - w.count = existing.length; - if (typeof console === 'object' && console.warn) { - console.warn('%s: %s', w.name, w.message); - } - } - } - } - - return target; -} - -EventEmitter.prototype.addListener = function addListener(type, listener) { - return _addListener(this, type, listener, false); -}; - -EventEmitter.prototype.on = EventEmitter.prototype.addListener; - -EventEmitter.prototype.prependListener = - function prependListener(type, listener) { - return _addListener(this, type, listener, true); - }; - -function onceWrapper() { - if (!this.fired) { - this.target.removeListener(this.type, this.wrapFn); - this.fired = true; - switch (arguments.length) { - case 0: - return this.listener.call(this.target); - case 1: - return this.listener.call(this.target, arguments[0]); - case 2: - return this.listener.call(this.target, arguments[0], arguments[1]); - case 3: - return this.listener.call(this.target, arguments[0], arguments[1], - arguments[2]); - default: - var args = new Array(arguments.length); - for (var i = 0; i < args.length; ++i) - args[i] = arguments[i]; - this.listener.apply(this.target, args); - } - } -} - -function _onceWrap(target, type, listener) { - var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; - var wrapped = bind.call(onceWrapper, state); - wrapped.listener = listener; - state.wrapFn = wrapped; - return wrapped; -} - -EventEmitter.prototype.once = function once(type, listener) { - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - this.on(type, _onceWrap(this, type, listener)); - return this; -}; - -EventEmitter.prototype.prependOnceListener = - function prependOnceListener(type, listener) { - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - this.prependListener(type, _onceWrap(this, type, listener)); - return this; - }; - -// Emits a 'removeListener' event if and only if the listener was removed. -EventEmitter.prototype.removeListener = - function removeListener(type, listener) { - var list, events, position, i, originalListener; - - if (typeof listener !== 'function') - throw new TypeError('"listener" argument must be a function'); - - events = this._events; - if (!events) - return this; - - list = events[type]; - if (!list) - return this; - - if (list === listener || list.listener === listener) { - if (--this._eventsCount === 0) - this._events = objectCreate(null); - else { - delete events[type]; - if (events.removeListener) - this.emit('removeListener', type, list.listener || listener); - } - } else if (typeof list !== 'function') { - position = -1; - - for (i = list.length - 1; i >= 0; i--) { - if (list[i] === listener || list[i].listener === listener) { - originalListener = list[i].listener; - position = i; - break; - } - } - - if (position < 0) - return this; - - if (position === 0) - list.shift(); - else - spliceOne(list, position); - - if (list.length === 1) - events[type] = list[0]; - - if (events.removeListener) - this.emit('removeListener', type, originalListener || listener); - } - - return this; - }; - -EventEmitter.prototype.removeAllListeners = - function removeAllListeners(type) { - var listeners, events, i; - - events = this._events; - if (!events) - return this; - - // not listening for removeListener, no need to emit - if (!events.removeListener) { - if (arguments.length === 0) { - this._events = objectCreate(null); - this._eventsCount = 0; - } else if (events[type]) { - if (--this._eventsCount === 0) - this._events = objectCreate(null); - else - delete events[type]; - } - return this; - } - - // emit removeListener for all listeners on all events - if (arguments.length === 0) { - var keys = objectKeys(events); - var key; - for (i = 0; i < keys.length; ++i) { - key = keys[i]; - if (key === 'removeListener') continue; - this.removeAllListeners(key); - } - this.removeAllListeners('removeListener'); - this._events = objectCreate(null); - this._eventsCount = 0; - return this; - } - - listeners = events[type]; - - if (typeof listeners === 'function') { - this.removeListener(type, listeners); - } else if (listeners) { - // LIFO order - for (i = listeners.length - 1; i >= 0; i--) { - this.removeListener(type, listeners[i]); - } - } - - return this; - }; - -function _listeners(target, type, unwrap) { - var events = target._events; - - if (!events) - return []; - - var evlistener = events[type]; - if (!evlistener) - return []; - - if (typeof evlistener === 'function') - return unwrap ? [evlistener.listener || evlistener] : [evlistener]; - - return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); -} - -EventEmitter.prototype.listeners = function listeners(type) { - return _listeners(this, type, true); -}; - -EventEmitter.prototype.rawListeners = function rawListeners(type) { - return _listeners(this, type, false); -}; - -EventEmitter.listenerCount = function(emitter, type) { - if (typeof emitter.listenerCount === 'function') { - return emitter.listenerCount(type); - } else { - return listenerCount.call(emitter, type); - } -}; - -EventEmitter.prototype.listenerCount = listenerCount; -function listenerCount(type) { - var events = this._events; - - if (events) { - var evlistener = events[type]; - - if (typeof evlistener === 'function') { - return 1; - } else if (evlistener) { - return evlistener.length; - } - } - - return 0; -} - -EventEmitter.prototype.eventNames = function eventNames() { - return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : []; -}; - -// About 1.5x faster than the two-arg version of Array#splice(). -function spliceOne(list, index) { - for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) - list[i] = list[k]; - list.pop(); -} - -function arrayClone(arr, n) { - var copy = new Array(n); - for (var i = 0; i < n; ++i) - copy[i] = arr[i]; - return copy; -} - -function unwrapListeners(arr) { - var ret = new Array(arr.length); - for (var i = 0; i < ret.length; ++i) { - ret[i] = arr[i].listener || arr[i]; - } - return ret; -} - -function objectCreatePolyfill(proto) { - var F = function() {}; - F.prototype = proto; - return new F; -} -function objectKeysPolyfill(obj) { - var keys = []; - for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) { - keys.push(k); - } - return k; -} -function functionBindPolyfill(context) { - var fn = this; - return function () { - return fn.apply(context, arguments); - }; -} - -},{}],24:[function(require,module,exports){ +},{}],21:[function(require,module,exports){ var FisheyeGl = function FisheyeGl(options){ // Defaults: @@ -11935,7 +9233,7 @@ if (typeof(document) != 'undefined') else module.exports = FisheyeGl; -},{"./shaders":25}],25:[function(require,module,exports){ +},{"./shaders":22}],22:[function(require,module,exports){ module.exports = { fragment: require('./shaders/fragment.glfs'), fragment2: require('./shaders/fragment2.glfs'), @@ -11945,7 +9243,7 @@ module.exports = { vertex: require('./shaders/vertex.glvs') }; -},{"./shaders/fragment.glfs":26,"./shaders/fragment2.glfs":27,"./shaders/fragment3.glfs":28,"./shaders/method1.glfs":29,"./shaders/method2.glfs":30,"./shaders/vertex.glvs":31}],26:[function(require,module,exports){ +},{"./shaders/fragment.glfs":23,"./shaders/fragment2.glfs":24,"./shaders/fragment3.glfs":25,"./shaders/method1.glfs":26,"./shaders/method2.glfs":27,"./shaders/vertex.glvs":28}],23:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -11973,7 +9271,7 @@ void main(void){\n\ gl_FragColor = texture;\n\ }\n\ "; -},{}],27:[function(require,module,exports){ +},{}],24:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -12006,7 +9304,7 @@ void main(void){\n\ gl_FragColor = texture;\n\ }\n\ "; -},{}],28:[function(require,module,exports){ +},{}],25:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -12037,7 +9335,7 @@ void main(void){\n\ gl_FragColor = texture;\n\ }\n\ "; -},{}],29:[function(require,module,exports){ +},{}],26:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -12069,7 +9367,7 @@ void main(void){\n\ gl_FragColor = texture;\n\ }\n\ "; -},{}],30:[function(require,module,exports){ +},{}],27:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -12101,7 +9399,7 @@ void main(void){\n\ gl_FragColor = texture;\n\ }\n\ "; -},{}],31:[function(require,module,exports){ +},{}],28:[function(require,module,exports){ module.exports = "\ #ifdef GL_ES\n\ precision highp float;\n\ @@ -12116,7 +9414,7 @@ void main(void){\n\ gl_Position = vec4(vPosition,1.0);\n\ }\n\ "; -},{}],32:[function(require,module,exports){ +},{}],29:[function(require,module,exports){ (function (Buffer,process){ 'use strict' @@ -12254,7 +9552,7 @@ module.exports = function getPixels(url, type, cb) { } } }).call(this,{"isBuffer":require("../is-buffer/index.js")},require('_process')) -},{"../is-buffer/index.js":57,"_process":114,"data-uri-to-buffer":33,"ndarray":69,"ndarray-pack":67,"omggif":78,"path":91,"through":143}],33:[function(require,module,exports){ +},{"../is-buffer/index.js":72,"_process":117,"data-uri-to-buffer":30,"ndarray":84,"ndarray-pack":82,"omggif":93,"path":95,"through":141}],30:[function(require,module,exports){ (function (Buffer){ /** @@ -12312,7 +9610,7 @@ function dataUriToBuffer (uri) { } }).call(this,require("buffer").Buffer) -},{"buffer":12}],34:[function(require,module,exports){ +},{"buffer":47}],31:[function(require,module,exports){ (function (Buffer){ /* GIFEncoder.js @@ -12785,7 +10083,7 @@ GIFEncoder.ByteCapacitor = ByteCapacitor; module.exports = GIFEncoder; }).call(this,require("buffer").Buffer) -},{"./LZWEncoder.js":35,"./TypedNeuQuant.js":36,"assert":1,"buffer":12,"events":23,"readable-stream":43,"util":152}],35:[function(require,module,exports){ +},{"./LZWEncoder.js":32,"./TypedNeuQuant.js":33,"assert":40,"buffer":47,"events":48,"readable-stream":39,"util":150}],32:[function(require,module,exports){ /* LZWEncoder.js @@ -12999,7 +10297,7 @@ function LZWEncoder(width, height, pixels, colorDepth) { module.exports = LZWEncoder; -},{}],36:[function(require,module,exports){ +},{}],33:[function(require,module,exports){ /* NeuQuant Neural-Net Quantization Algorithm * ------------------------------------------ * @@ -13432,153 +10730,11 @@ function NeuQuant(pixels, samplefac) { module.exports = NeuQuant; -},{}],37:[function(require,module,exports){ -module.exports = Array.isArray || function (arr) { - return Object.prototype.toString.call(arr) == '[object Array]'; -}; - -},{}],38:[function(require,module,exports){ -(function (process){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a duplex stream is just a stream that is both readable and writable. -// Since JS doesn't have multiple prototypal inheritance, this class -// prototypally inherits from Readable, and then parasitically from -// Writable. - -module.exports = Duplex; - -/**/ -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) keys.push(key); - return keys; -} -/**/ - - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -var Readable = require('./_stream_readable'); -var Writable = require('./_stream_writable'); - -util.inherits(Duplex, Readable); - -forEach(objectKeys(Writable.prototype), function(method) { - if (!Duplex.prototype[method]) - Duplex.prototype[method] = Writable.prototype[method]; -}); - -function Duplex(options) { - if (!(this instanceof Duplex)) - return new Duplex(options); - - Readable.call(this, options); - Writable.call(this, options); - - if (options && options.readable === false) - this.readable = false; - - if (options && options.writable === false) - this.writable = false; - - this.allowHalfOpen = true; - if (options && options.allowHalfOpen === false) - this.allowHalfOpen = false; - - this.once('end', onend); -} - -// the no-half-open enforcer -function onend() { - // if we allow half-open state, or if the writable side ended, - // then we're ok. - if (this.allowHalfOpen || this._writableState.ended) - return; - - // no more data can be written. - // But allow more writes to happen in this tick. - process.nextTick(this.end.bind(this)); -} - -function forEach (xs, f) { - for (var i = 0, l = xs.length; i < l; i++) { - f(xs[i], i); - } -} - -}).call(this,require('_process')) -},{"./_stream_readable":40,"./_stream_writable":42,"_process":114,"core-util-is":16,"inherits":55}],39:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// a passthrough stream. -// basically just the most minimal sort of Transform stream. -// Every written chunk gets output as-is. - -module.exports = PassThrough; - -var Transform = require('./_stream_transform'); - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -util.inherits(PassThrough, Transform); - -function PassThrough(options) { - if (!(this instanceof PassThrough)) - return new PassThrough(options); - - Transform.call(this, options); -} - -PassThrough.prototype._transform = function(chunk, encoding, cb) { - cb(null, chunk); -}; - -},{"./_stream_transform":41,"core-util-is":16,"inherits":55}],40:[function(require,module,exports){ +},{}],34:[function(require,module,exports){ +arguments[4][8][0].apply(exports,arguments) +},{"./_stream_readable":36,"./_stream_writable":38,"_process":117,"core-util-is":14,"dup":8,"inherits":70}],35:[function(require,module,exports){ +arguments[4][9][0].apply(exports,arguments) +},{"./_stream_transform":37,"core-util-is":14,"dup":9,"inherits":70}],36:[function(require,module,exports){ (function (process){ // Copyright Joyent, Inc. and other Node contributors. // @@ -14533,7 +11689,7 @@ function indexOf (xs, x) { } }).call(this,require('_process')) -},{"./_stream_duplex":38,"_process":114,"buffer":12,"core-util-is":16,"events":23,"inherits":55,"isarray":37,"stream":128,"string_decoder/":44,"util":8}],41:[function(require,module,exports){ +},{"./_stream_duplex":34,"_process":117,"buffer":47,"core-util-is":14,"events":48,"inherits":70,"isarray":73,"stream":139,"string_decoder/":140,"util":4}],37:[function(require,module,exports){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -14744,7 +11900,7 @@ function done(stream, er) { return stream.push(null); } -},{"./_stream_duplex":38,"core-util-is":16,"inherits":55}],42:[function(require,module,exports){ +},{"./_stream_duplex":34,"core-util-is":14,"inherits":70}],38:[function(require,module,exports){ (function (process){ // Copyright Joyent, Inc. and other Node contributors. // @@ -15225,7 +12381,7 @@ function endWritable(stream, state, cb) { } }).call(this,require('_process')) -},{"./_stream_duplex":38,"_process":114,"buffer":12,"core-util-is":16,"inherits":55,"stream":128}],43:[function(require,module,exports){ +},{"./_stream_duplex":34,"_process":117,"buffer":47,"core-util-is":14,"inherits":70,"stream":139}],39:[function(require,module,exports){ (function (process){ exports = module.exports = require('./lib/_stream_readable.js'); exports.Stream = require('stream'); @@ -15239,7 +12395,534 @@ if (!process.browser && process.env.READABLE_STREAM === 'disable') { } }).call(this,require('_process')) -},{"./lib/_stream_duplex.js":38,"./lib/_stream_passthrough.js":39,"./lib/_stream_readable.js":40,"./lib/_stream_transform.js":41,"./lib/_stream_writable.js":42,"_process":114,"stream":128}],44:[function(require,module,exports){ +},{"./lib/_stream_duplex.js":34,"./lib/_stream_passthrough.js":35,"./lib/_stream_readable.js":36,"./lib/_stream_transform.js":37,"./lib/_stream_writable.js":38,"_process":117,"stream":139}],40:[function(require,module,exports){ +(function (global){ +'use strict'; + +// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js +// original notice: + +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +function compare(a, b) { + if (a === b) { + return 0; + } + + var x = a.length; + var y = b.length; + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i]; + y = b[i]; + break; + } + } + + if (x < y) { + return -1; + } + if (y < x) { + return 1; + } + return 0; +} +function isBuffer(b) { + if (global.Buffer && typeof global.Buffer.isBuffer === 'function') { + return global.Buffer.isBuffer(b); + } + return !!(b != null && b._isBuffer); +} + +// based on node assert, original notice: + +// http://wiki.commonjs.org/wiki/Unit_Testing/1.0 +// +// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8! +// +// Originally from narwhal.js (http://narwhaljs.org) +// Copyright (c) 2009 Thomas Robinson <280north.com> +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the 'Software'), to +// deal in the Software without restriction, including without limitation the +// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or +// sell copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +var util = require('util/'); +var hasOwn = Object.prototype.hasOwnProperty; +var pSlice = Array.prototype.slice; +var functionsHaveNames = (function () { + return function foo() {}.name === 'foo'; +}()); +function pToString (obj) { + return Object.prototype.toString.call(obj); +} +function isView(arrbuf) { + if (isBuffer(arrbuf)) { + return false; + } + if (typeof global.ArrayBuffer !== 'function') { + return false; + } + if (typeof ArrayBuffer.isView === 'function') { + return ArrayBuffer.isView(arrbuf); + } + if (!arrbuf) { + return false; + } + if (arrbuf instanceof DataView) { + return true; + } + if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) { + return true; + } + return false; +} +// 1. The assert module provides functions that throw +// AssertionError's when particular conditions are not met. The +// assert module must conform to the following interface. + +var assert = module.exports = ok; + +// 2. The AssertionError is defined in assert. +// new assert.AssertionError({ message: message, +// actual: actual, +// expected: expected }) + +var regex = /\s*function\s+([^\(\s]*)\s*/; +// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js +function getName(func) { + if (!util.isFunction(func)) { + return; + } + if (functionsHaveNames) { + return func.name; + } + var str = func.toString(); + var match = str.match(regex); + return match && match[1]; +} +assert.AssertionError = function AssertionError(options) { + this.name = 'AssertionError'; + this.actual = options.actual; + this.expected = options.expected; + this.operator = options.operator; + if (options.message) { + this.message = options.message; + this.generatedMessage = false; + } else { + this.message = getMessage(this); + this.generatedMessage = true; + } + var stackStartFunction = options.stackStartFunction || fail; + if (Error.captureStackTrace) { + Error.captureStackTrace(this, stackStartFunction); + } else { + // non v8 browsers so we can have a stacktrace + var err = new Error(); + if (err.stack) { + var out = err.stack; + + // try to strip useless frames + var fn_name = getName(stackStartFunction); + var idx = out.indexOf('\n' + fn_name); + if (idx >= 0) { + // once we have located the function frame + // we need to strip out everything before it (and its line) + var next_line = out.indexOf('\n', idx + 1); + out = out.substring(next_line + 1); + } + + this.stack = out; + } + } +}; + +// assert.AssertionError instanceof Error +util.inherits(assert.AssertionError, Error); + +function truncate(s, n) { + if (typeof s === 'string') { + return s.length < n ? s : s.slice(0, n); + } else { + return s; + } +} +function inspect(something) { + if (functionsHaveNames || !util.isFunction(something)) { + return util.inspect(something); + } + var rawname = getName(something); + var name = rawname ? ': ' + rawname : ''; + return '[Function' + name + ']'; +} +function getMessage(self) { + return truncate(inspect(self.actual), 128) + ' ' + + self.operator + ' ' + + truncate(inspect(self.expected), 128); +} + +// At present only the three keys mentioned above are used and +// understood by the spec. Implementations or sub modules can pass +// other keys to the AssertionError's constructor - they will be +// ignored. + +// 3. All of the following functions must throw an AssertionError +// when a corresponding condition is not met, with a message that +// may be undefined if not provided. All assertion methods provide +// both the actual and expected values to the assertion error for +// display purposes. + +function fail(actual, expected, message, operator, stackStartFunction) { + throw new assert.AssertionError({ + message: message, + actual: actual, + expected: expected, + operator: operator, + stackStartFunction: stackStartFunction + }); +} + +// EXTENSION! allows for well behaved errors defined elsewhere. +assert.fail = fail; + +// 4. Pure assertion tests whether a value is truthy, as determined +// by !!guard. +// assert.ok(guard, message_opt); +// This statement is equivalent to assert.equal(true, !!guard, +// message_opt);. To test strictly for the value true, use +// assert.strictEqual(true, guard, message_opt);. + +function ok(value, message) { + if (!value) fail(value, true, message, '==', assert.ok); +} +assert.ok = ok; + +// 5. The equality assertion tests shallow, coercive equality with +// ==. +// assert.equal(actual, expected, message_opt); + +assert.equal = function equal(actual, expected, message) { + if (actual != expected) fail(actual, expected, message, '==', assert.equal); +}; + +// 6. The non-equality assertion tests for whether two objects are not equal +// with != assert.notEqual(actual, expected, message_opt); + +assert.notEqual = function notEqual(actual, expected, message) { + if (actual == expected) { + fail(actual, expected, message, '!=', assert.notEqual); + } +}; + +// 7. The equivalence assertion tests a deep equality relation. +// assert.deepEqual(actual, expected, message_opt); + +assert.deepEqual = function deepEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'deepEqual', assert.deepEqual); + } +}; + +assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) { + if (!_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual); + } +}; + +function _deepEqual(actual, expected, strict, memos) { + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + } else if (isBuffer(actual) && isBuffer(expected)) { + return compare(actual, expected) === 0; + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + } else if (util.isDate(actual) && util.isDate(expected)) { + return actual.getTime() === expected.getTime(); + + // 7.3 If the expected value is a RegExp object, the actual value is + // equivalent if it is also a RegExp object with the same source and + // properties (`global`, `multiline`, `lastIndex`, `ignoreCase`). + } else if (util.isRegExp(actual) && util.isRegExp(expected)) { + return actual.source === expected.source && + actual.global === expected.global && + actual.multiline === expected.multiline && + actual.lastIndex === expected.lastIndex && + actual.ignoreCase === expected.ignoreCase; + + // 7.4. Other pairs that do not both pass typeof value == 'object', + // equivalence is determined by ==. + } else if ((actual === null || typeof actual !== 'object') && + (expected === null || typeof expected !== 'object')) { + return strict ? actual === expected : actual == expected; + + // If both values are instances of typed arrays, wrap their underlying + // ArrayBuffers in a Buffer each to increase performance + // This optimization requires the arrays to have the same type as checked by + // Object.prototype.toString (aka pToString). Never perform binary + // comparisons for Float*Arrays, though, since e.g. +0 === -0 but their + // bit patterns are not identical. + } else if (isView(actual) && isView(expected) && + pToString(actual) === pToString(expected) && + !(actual instanceof Float32Array || + actual instanceof Float64Array)) { + return compare(new Uint8Array(actual.buffer), + new Uint8Array(expected.buffer)) === 0; + + // 7.5 For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical 'prototype' property. Note: this + // accounts for both named and indexed properties on Arrays. + } else if (isBuffer(actual) !== isBuffer(expected)) { + return false; + } else { + memos = memos || {actual: [], expected: []}; + + var actualIndex = memos.actual.indexOf(actual); + if (actualIndex !== -1) { + if (actualIndex === memos.expected.indexOf(expected)) { + return true; + } + } + + memos.actual.push(actual); + memos.expected.push(expected); + + return objEquiv(actual, expected, strict, memos); + } +} + +function isArguments(object) { + return Object.prototype.toString.call(object) == '[object Arguments]'; +} + +function objEquiv(a, b, strict, actualVisitedObjects) { + if (a === null || a === undefined || b === null || b === undefined) + return false; + // if one is a primitive, the other must be same + if (util.isPrimitive(a) || util.isPrimitive(b)) + return a === b; + if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b)) + return false; + var aIsArgs = isArguments(a); + var bIsArgs = isArguments(b); + if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs)) + return false; + if (aIsArgs) { + a = pSlice.call(a); + b = pSlice.call(b); + return _deepEqual(a, b, strict); + } + var ka = objectKeys(a); + var kb = objectKeys(b); + var key, i; + // having the same number of owned properties (keys incorporates + // hasOwnProperty) + if (ka.length !== kb.length) + return false; + //the same set of keys (although not necessarily the same order), + ka.sort(); + kb.sort(); + //~~~cheap key test + for (i = ka.length - 1; i >= 0; i--) { + if (ka[i] !== kb[i]) + return false; + } + //equivalent values for every corresponding key, and + //~~~possibly expensive deep test + for (i = ka.length - 1; i >= 0; i--) { + key = ka[i]; + if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects)) + return false; + } + return true; +} + +// 8. The non-equivalence assertion tests for any deep inequality. +// assert.notDeepEqual(actual, expected, message_opt); + +assert.notDeepEqual = function notDeepEqual(actual, expected, message) { + if (_deepEqual(actual, expected, false)) { + fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual); + } +}; + +assert.notDeepStrictEqual = notDeepStrictEqual; +function notDeepStrictEqual(actual, expected, message) { + if (_deepEqual(actual, expected, true)) { + fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual); + } +} + + +// 9. The strict equality assertion tests strict equality, as determined by ===. +// assert.strictEqual(actual, expected, message_opt); + +assert.strictEqual = function strictEqual(actual, expected, message) { + if (actual !== expected) { + fail(actual, expected, message, '===', assert.strictEqual); + } +}; + +// 10. The strict non-equality assertion tests for strict inequality, as +// determined by !==. assert.notStrictEqual(actual, expected, message_opt); + +assert.notStrictEqual = function notStrictEqual(actual, expected, message) { + if (actual === expected) { + fail(actual, expected, message, '!==', assert.notStrictEqual); + } +}; + +function expectedException(actual, expected) { + if (!actual || !expected) { + return false; + } + + if (Object.prototype.toString.call(expected) == '[object RegExp]') { + return expected.test(actual); + } + + try { + if (actual instanceof expected) { + return true; + } + } catch (e) { + // Ignore. The instanceof check doesn't work for arrow functions. + } + + if (Error.isPrototypeOf(expected)) { + return false; + } + + return expected.call({}, actual) === true; +} + +function _tryBlock(block) { + var error; + try { + block(); + } catch (e) { + error = e; + } + return error; +} + +function _throws(shouldThrow, block, expected, message) { + var actual; + + if (typeof block !== 'function') { + throw new TypeError('"block" argument must be a function'); + } + + if (typeof expected === 'string') { + message = expected; + expected = null; + } + + actual = _tryBlock(block); + + message = (expected && expected.name ? ' (' + expected.name + ').' : '.') + + (message ? ' ' + message : '.'); + + if (shouldThrow && !actual) { + fail(actual, expected, 'Missing expected exception' + message); + } + + var userProvidedMessage = typeof message === 'string'; + var isUnwantedException = !shouldThrow && util.isError(actual); + var isUnexpectedException = !shouldThrow && actual && !expected; + + if ((isUnwantedException && + userProvidedMessage && + expectedException(actual, expected)) || + isUnexpectedException) { + fail(actual, expected, 'Got unwanted exception' + message); + } + + if ((shouldThrow && actual && expected && + !expectedException(actual, expected)) || (!shouldThrow && actual)) { + throw actual; + } +} + +// 11. Expected to throw an error: +// assert.throws(block, Error_opt, message_opt); + +assert.throws = function(block, /*optional*/error, /*optional*/message) { + _throws(true, block, error, message); +}; + +// EXTENSION! This is annoying to write outside this module. +assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) { + _throws(false, block, error, message); +}; + +assert.ifError = function(err) { if (err) throw err; }; + +var objectKeys = Object.keys || function (obj) { + var keys = []; + for (var key in obj) { + if (hasOwn.call(obj, key)) keys.push(key); + } + return keys; +}; + +}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"util/":43}],41:[function(require,module,exports){ +if (typeof Object.create === 'function') { + // implementation from standard node.js 'util' module + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + ctor.prototype = Object.create(superCtor.prototype, { + constructor: { + value: ctor, + enumerable: false, + writable: true, + configurable: true + } + }); + }; +} else { + // old school shim for old browsers + module.exports = function inherits(ctor, superCtor) { + ctor.super_ = superCtor + var TempCtor = function () {} + TempCtor.prototype = superCtor.prototype + ctor.prototype = new TempCtor() + ctor.prototype.constructor = ctor + } +} + +},{}],42:[function(require,module,exports){ +module.exports = function isBuffer(arg) { + return arg && typeof arg === 'object' + && typeof arg.copy === 'function' + && typeof arg.fill === 'function' + && typeof arg.readUInt8 === 'function'; +} +},{}],43:[function(require,module,exports){ +(function (process,global){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -15261,208 +12944,9563 @@ if (!process.browser && process.env.READABLE_STREAM === 'disable') { // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE. -var Buffer = require('buffer').Buffer; +var formatRegExp = /%[sdj%]/g; +exports.format = function(f) { + if (!isString(f)) { + var objects = []; + for (var i = 0; i < arguments.length; i++) { + objects.push(inspect(arguments[i])); + } + return objects.join(' '); + } -var isBufferEncoding = Buffer.isEncoding - || function(encoding) { - switch (encoding && encoding.toLowerCase()) { - case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true; - default: return false; - } - } + var i = 1; + var args = arguments; + var len = args.length; + var str = String(f).replace(formatRegExp, function(x) { + if (x === '%%') return '%'; + if (i >= len) return x; + switch (x) { + case '%s': return String(args[i++]); + case '%d': return Number(args[i++]); + case '%j': + try { + return JSON.stringify(args[i++]); + } catch (_) { + return '[Circular]'; + } + default: + return x; + } + }); + for (var x = args[i]; i < len; x = args[++i]) { + if (isNull(x) || !isObject(x)) { + str += ' ' + x; + } else { + str += ' ' + inspect(x); + } + } + return str; +}; -function assertEncoding(encoding) { - if (encoding && !isBufferEncoding(encoding)) { - throw new Error('Unknown encoding: ' + encoding); +// Mark that a method should not be used. +// Returns a modified function which warns once by default. +// If --no-deprecation is set, then it is a no-op. +exports.deprecate = function(fn, msg) { + // Allow for deprecating things in the process of starting up. + if (isUndefined(global.process)) { + return function() { + return exports.deprecate(fn, msg).apply(this, arguments); + }; + } + + if (process.noDeprecation === true) { + return fn; + } + + var warned = false; + function deprecated() { + if (!warned) { + if (process.throwDeprecation) { + throw new Error(msg); + } else if (process.traceDeprecation) { + console.trace(msg); + } else { + console.error(msg); + } + warned = true; + } + return fn.apply(this, arguments); + } + + return deprecated; +}; + + +var debugs = {}; +var debugEnviron; +exports.debuglog = function(set) { + if (isUndefined(debugEnviron)) + debugEnviron = process.env.NODE_DEBUG || ''; + set = set.toUpperCase(); + if (!debugs[set]) { + if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) { + var pid = process.pid; + debugs[set] = function() { + var msg = exports.format.apply(exports, arguments); + console.error('%s %d: %s', set, pid, msg); + }; + } else { + debugs[set] = function() {}; + } + } + return debugs[set]; +}; + + +/** + * Echos the value of a value. Trys to print the value out + * in the best way possible given the different types. + * + * @param {Object} obj The object to print out. + * @param {Object} opts Optional options object that alters the output. + */ +/* legacy: obj, showHidden, depth, colors*/ +function inspect(obj, opts) { + // default options + var ctx = { + seen: [], + stylize: stylizeNoColor + }; + // legacy... + if (arguments.length >= 3) ctx.depth = arguments[2]; + if (arguments.length >= 4) ctx.colors = arguments[3]; + if (isBoolean(opts)) { + // legacy... + ctx.showHidden = opts; + } else if (opts) { + // got an "options" object + exports._extend(ctx, opts); + } + // set default options + if (isUndefined(ctx.showHidden)) ctx.showHidden = false; + if (isUndefined(ctx.depth)) ctx.depth = 2; + if (isUndefined(ctx.colors)) ctx.colors = false; + if (isUndefined(ctx.customInspect)) ctx.customInspect = true; + if (ctx.colors) ctx.stylize = stylizeWithColor; + return formatValue(ctx, obj, ctx.depth); +} +exports.inspect = inspect; + + +// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics +inspect.colors = { + 'bold' : [1, 22], + 'italic' : [3, 23], + 'underline' : [4, 24], + 'inverse' : [7, 27], + 'white' : [37, 39], + 'grey' : [90, 39], + 'black' : [30, 39], + 'blue' : [34, 39], + 'cyan' : [36, 39], + 'green' : [32, 39], + 'magenta' : [35, 39], + 'red' : [31, 39], + 'yellow' : [33, 39] +}; + +// Don't use 'blue' not visible on cmd.exe +inspect.styles = { + 'special': 'cyan', + 'number': 'yellow', + 'boolean': 'yellow', + 'undefined': 'grey', + 'null': 'bold', + 'string': 'green', + 'date': 'magenta', + // "name": intentionally not styling + 'regexp': 'red' +}; + + +function stylizeWithColor(str, styleType) { + var style = inspect.styles[styleType]; + + if (style) { + return '\u001b[' + inspect.colors[style][0] + 'm' + str + + '\u001b[' + inspect.colors[style][1] + 'm'; + } else { + return str; } } -// StringDecoder provides an interface for efficiently splitting a series of -// buffers into a series of JS strings without breaking apart multi-byte -// characters. CESU-8 is handled as part of the UTF-8 encoding. -// -// @TODO Handling all encodings inside a single object makes it very difficult -// to reason about this code, so it should be split up in the future. -// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code -// points as used by CESU-8. -var StringDecoder = exports.StringDecoder = function(encoding) { - this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, ''); - assertEncoding(encoding); - switch (this.encoding) { - case 'utf8': - // CESU-8 represents each of Surrogate Pair by 3-bytes - this.surrogateSize = 3; + +function stylizeNoColor(str, styleType) { + return str; +} + + +function arrayToHash(array) { + var hash = {}; + + array.forEach(function(val, idx) { + hash[val] = true; + }); + + return hash; +} + + +function formatValue(ctx, value, recurseTimes) { + // Provide a hook for user-specified inspect functions. + // Check that value is an object with an inspect function on it + if (ctx.customInspect && + value && + isFunction(value.inspect) && + // Filter out the util module, it's inspect function is special + value.inspect !== exports.inspect && + // Also filter out any prototype objects using the circular check. + !(value.constructor && value.constructor.prototype === value)) { + var ret = value.inspect(recurseTimes, ctx); + if (!isString(ret)) { + ret = formatValue(ctx, ret, recurseTimes); + } + return ret; + } + + // Primitive types cannot have properties + var primitive = formatPrimitive(ctx, value); + if (primitive) { + return primitive; + } + + // Look up the keys of the object. + var keys = Object.keys(value); + var visibleKeys = arrayToHash(keys); + + if (ctx.showHidden) { + keys = Object.getOwnPropertyNames(value); + } + + // IE doesn't make error fields non-enumerable + // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx + if (isError(value) + && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) { + return formatError(value); + } + + // Some type of object without properties can be shortcutted. + if (keys.length === 0) { + if (isFunction(value)) { + var name = value.name ? ': ' + value.name : ''; + return ctx.stylize('[Function' + name + ']', 'special'); + } + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } + if (isDate(value)) { + return ctx.stylize(Date.prototype.toString.call(value), 'date'); + } + if (isError(value)) { + return formatError(value); + } + } + + var base = '', array = false, braces = ['{', '}']; + + // Make Array say that they are Array + if (isArray(value)) { + array = true; + braces = ['[', ']']; + } + + // Make functions say that they are functions + if (isFunction(value)) { + var n = value.name ? ': ' + value.name : ''; + base = ' [Function' + n + ']'; + } + + // Make RegExps say that they are RegExps + if (isRegExp(value)) { + base = ' ' + RegExp.prototype.toString.call(value); + } + + // Make dates with properties first say the date + if (isDate(value)) { + base = ' ' + Date.prototype.toUTCString.call(value); + } + + // Make error with message first say the error + if (isError(value)) { + base = ' ' + formatError(value); + } + + if (keys.length === 0 && (!array || value.length == 0)) { + return braces[0] + base + braces[1]; + } + + if (recurseTimes < 0) { + if (isRegExp(value)) { + return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp'); + } else { + return ctx.stylize('[Object]', 'special'); + } + } + + ctx.seen.push(value); + + var output; + if (array) { + output = formatArray(ctx, value, recurseTimes, visibleKeys, keys); + } else { + output = keys.map(function(key) { + return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array); + }); + } + + ctx.seen.pop(); + + return reduceToSingleString(output, base, braces); +} + + +function formatPrimitive(ctx, value) { + if (isUndefined(value)) + return ctx.stylize('undefined', 'undefined'); + if (isString(value)) { + var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '') + .replace(/'/g, "\\'") + .replace(/\\"/g, '"') + '\''; + return ctx.stylize(simple, 'string'); + } + if (isNumber(value)) + return ctx.stylize('' + value, 'number'); + if (isBoolean(value)) + return ctx.stylize('' + value, 'boolean'); + // For some reason typeof null is "object", so special case here. + if (isNull(value)) + return ctx.stylize('null', 'null'); +} + + +function formatError(value) { + return '[' + Error.prototype.toString.call(value) + ']'; +} + + +function formatArray(ctx, value, recurseTimes, visibleKeys, keys) { + var output = []; + for (var i = 0, l = value.length; i < l; ++i) { + if (hasOwnProperty(value, String(i))) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + String(i), true)); + } else { + output.push(''); + } + } + keys.forEach(function(key) { + if (!key.match(/^\d+$/)) { + output.push(formatProperty(ctx, value, recurseTimes, visibleKeys, + key, true)); + } + }); + return output; +} + + +function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) { + var name, str, desc; + desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] }; + if (desc.get) { + if (desc.set) { + str = ctx.stylize('[Getter/Setter]', 'special'); + } else { + str = ctx.stylize('[Getter]', 'special'); + } + } else { + if (desc.set) { + str = ctx.stylize('[Setter]', 'special'); + } + } + if (!hasOwnProperty(visibleKeys, key)) { + name = '[' + key + ']'; + } + if (!str) { + if (ctx.seen.indexOf(desc.value) < 0) { + if (isNull(recurseTimes)) { + str = formatValue(ctx, desc.value, null); + } else { + str = formatValue(ctx, desc.value, recurseTimes - 1); + } + if (str.indexOf('\n') > -1) { + if (array) { + str = str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n').substr(2); + } else { + str = '\n' + str.split('\n').map(function(line) { + return ' ' + line; + }).join('\n'); + } + } + } else { + str = ctx.stylize('[Circular]', 'special'); + } + } + if (isUndefined(name)) { + if (array && key.match(/^\d+$/)) { + return str; + } + name = JSON.stringify('' + key); + if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) { + name = name.substr(1, name.length - 2); + name = ctx.stylize(name, 'name'); + } else { + name = name.replace(/'/g, "\\'") + .replace(/\\"/g, '"') + .replace(/(^"|"$)/g, "'"); + name = ctx.stylize(name, 'string'); + } + } + + return name + ': ' + str; +} + + +function reduceToSingleString(output, base, braces) { + var numLinesEst = 0; + var length = output.reduce(function(prev, cur) { + numLinesEst++; + if (cur.indexOf('\n') >= 0) numLinesEst++; + return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1; + }, 0); + + if (length > 60) { + return braces[0] + + (base === '' ? '' : base + '\n ') + + ' ' + + output.join(',\n ') + + ' ' + + braces[1]; + } + + return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1]; +} + + +// NOTE: These type checking functions intentionally don't use `instanceof` +// because it is fragile and can be easily faked with `Object.create()`. +function isArray(ar) { + return Array.isArray(ar); +} +exports.isArray = isArray; + +function isBoolean(arg) { + return typeof arg === 'boolean'; +} +exports.isBoolean = isBoolean; + +function isNull(arg) { + return arg === null; +} +exports.isNull = isNull; + +function isNullOrUndefined(arg) { + return arg == null; +} +exports.isNullOrUndefined = isNullOrUndefined; + +function isNumber(arg) { + return typeof arg === 'number'; +} +exports.isNumber = isNumber; + +function isString(arg) { + return typeof arg === 'string'; +} +exports.isString = isString; + +function isSymbol(arg) { + return typeof arg === 'symbol'; +} +exports.isSymbol = isSymbol; + +function isUndefined(arg) { + return arg === void 0; +} +exports.isUndefined = isUndefined; + +function isRegExp(re) { + return isObject(re) && objectToString(re) === '[object RegExp]'; +} +exports.isRegExp = isRegExp; + +function isObject(arg) { + return typeof arg === 'object' && arg !== null; +} +exports.isObject = isObject; + +function isDate(d) { + return isObject(d) && objectToString(d) === '[object Date]'; +} +exports.isDate = isDate; + +function isError(e) { + return isObject(e) && + (objectToString(e) === '[object Error]' || e instanceof Error); +} +exports.isError = isError; + +function isFunction(arg) { + return typeof arg === 'function'; +} +exports.isFunction = isFunction; + +function isPrimitive(arg) { + return arg === null || + typeof arg === 'boolean' || + typeof arg === 'number' || + typeof arg === 'string' || + typeof arg === 'symbol' || // ES6 symbol + typeof arg === 'undefined'; +} +exports.isPrimitive = isPrimitive; + +exports.isBuffer = require('./support/isBuffer'); + +function objectToString(o) { + return Object.prototype.toString.call(o); +} + + +function pad(n) { + return n < 10 ? '0' + n.toString(10) : n.toString(10); +} + + +var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', + 'Oct', 'Nov', 'Dec']; + +// 26 Feb 16:19:34 +function timestamp() { + var d = new Date(); + var time = [pad(d.getHours()), + pad(d.getMinutes()), + pad(d.getSeconds())].join(':'); + return [d.getDate(), months[d.getMonth()], time].join(' '); +} + + +// log is just a thin wrapper to console.log that prepends a timestamp +exports.log = function() { + console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments)); +}; + + +/** + * Inherit the prototype methods from one constructor into another. + * + * The Function.prototype.inherits from lang.js rewritten as a standalone + * function (not on Function.prototype). NOTE: If this file is to be loaded + * during bootstrapping this function needs to be rewritten using some native + * functions as prototype setup using normal JavaScript does not work as + * expected during bootstrapping (see mirror.js in r114903). + * + * @param {function} ctor Constructor function which needs to inherit the + * prototype. + * @param {function} superCtor Constructor function to inherit prototype from. + */ +exports.inherits = require('inherits'); + +exports._extend = function(origin, add) { + // Don't do anything if add isn't an object + if (!add || !isObject(add)) return origin; + + var keys = Object.keys(add); + var i = keys.length; + while (i--) { + origin[keys[i]] = add[keys[i]]; + } + return origin; +}; + +function hasOwnProperty(obj, prop) { + return Object.prototype.hasOwnProperty.call(obj, prop); +} + +}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) +},{"./support/isBuffer":42,"_process":117,"inherits":41}],44:[function(require,module,exports){ +(function (process,Buffer){ +'use strict'; +/* eslint camelcase: "off" */ + +var assert = require('assert'); + +var Zstream = require('pako/lib/zlib/zstream'); +var zlib_deflate = require('pako/lib/zlib/deflate.js'); +var zlib_inflate = require('pako/lib/zlib/inflate.js'); +var constants = require('pako/lib/zlib/constants'); + +for (var key in constants) { + exports[key] = constants[key]; +} + +// zlib modes +exports.NONE = 0; +exports.DEFLATE = 1; +exports.INFLATE = 2; +exports.GZIP = 3; +exports.GUNZIP = 4; +exports.DEFLATERAW = 5; +exports.INFLATERAW = 6; +exports.UNZIP = 7; + +var GZIP_HEADER_ID1 = 0x1f; +var GZIP_HEADER_ID2 = 0x8b; + +/** + * Emulate Node's zlib C++ layer for use by the JS layer in index.js + */ +function Zlib(mode) { + if (typeof mode !== 'number' || mode < exports.DEFLATE || mode > exports.UNZIP) { + throw new TypeError('Bad argument'); + } + + this.dictionary = null; + this.err = 0; + this.flush = 0; + this.init_done = false; + this.level = 0; + this.memLevel = 0; + this.mode = mode; + this.strategy = 0; + this.windowBits = 0; + this.write_in_progress = false; + this.pending_close = false; + this.gzip_id_bytes_read = 0; +} + +Zlib.prototype.close = function () { + if (this.write_in_progress) { + this.pending_close = true; + return; + } + + this.pending_close = false; + + assert(this.init_done, 'close before init'); + assert(this.mode <= exports.UNZIP); + + if (this.mode === exports.DEFLATE || this.mode === exports.GZIP || this.mode === exports.DEFLATERAW) { + zlib_deflate.deflateEnd(this.strm); + } else if (this.mode === exports.INFLATE || this.mode === exports.GUNZIP || this.mode === exports.INFLATERAW || this.mode === exports.UNZIP) { + zlib_inflate.inflateEnd(this.strm); + } + + this.mode = exports.NONE; + + this.dictionary = null; +}; + +Zlib.prototype.write = function (flush, input, in_off, in_len, out, out_off, out_len) { + return this._write(true, flush, input, in_off, in_len, out, out_off, out_len); +}; + +Zlib.prototype.writeSync = function (flush, input, in_off, in_len, out, out_off, out_len) { + return this._write(false, flush, input, in_off, in_len, out, out_off, out_len); +}; + +Zlib.prototype._write = function (async, flush, input, in_off, in_len, out, out_off, out_len) { + assert.equal(arguments.length, 8); + + assert(this.init_done, 'write before init'); + assert(this.mode !== exports.NONE, 'already finalized'); + assert.equal(false, this.write_in_progress, 'write already in progress'); + assert.equal(false, this.pending_close, 'close is pending'); + + this.write_in_progress = true; + + assert.equal(false, flush === undefined, 'must provide flush value'); + + this.write_in_progress = true; + + if (flush !== exports.Z_NO_FLUSH && flush !== exports.Z_PARTIAL_FLUSH && flush !== exports.Z_SYNC_FLUSH && flush !== exports.Z_FULL_FLUSH && flush !== exports.Z_FINISH && flush !== exports.Z_BLOCK) { + throw new Error('Invalid flush value'); + } + + if (input == null) { + input = Buffer.alloc(0); + in_len = 0; + in_off = 0; + } + + this.strm.avail_in = in_len; + this.strm.input = input; + this.strm.next_in = in_off; + this.strm.avail_out = out_len; + this.strm.output = out; + this.strm.next_out = out_off; + this.flush = flush; + + if (!async) { + // sync version + this._process(); + + if (this._checkError()) { + return this._afterSync(); + } + return; + } + + // async version + var self = this; + process.nextTick(function () { + self._process(); + self._after(); + }); + + return this; +}; + +Zlib.prototype._afterSync = function () { + var avail_out = this.strm.avail_out; + var avail_in = this.strm.avail_in; + + this.write_in_progress = false; + + return [avail_in, avail_out]; +}; + +Zlib.prototype._process = function () { + var next_expected_header_byte = null; + + // If the avail_out is left at 0, then it means that it ran out + // of room. If there was avail_out left over, then it means + // that all of the input was consumed. + switch (this.mode) { + case exports.DEFLATE: + case exports.GZIP: + case exports.DEFLATERAW: + this.err = zlib_deflate.deflate(this.strm, this.flush); break; - case 'ucs2': - case 'utf16le': - // UTF-16 represents each of Surrogate Pair by 2-bytes - this.surrogateSize = 2; - this.detectIncompleteChar = utf16DetectIncompleteChar; - break; - case 'base64': - // Base-64 stores 3 bytes in 4 chars, and pads the remainder. - this.surrogateSize = 3; - this.detectIncompleteChar = base64DetectIncompleteChar; + case exports.UNZIP: + if (this.strm.avail_in > 0) { + next_expected_header_byte = this.strm.next_in; + } + + switch (this.gzip_id_bytes_read) { + case 0: + if (next_expected_header_byte === null) { + break; + } + + if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID1) { + this.gzip_id_bytes_read = 1; + next_expected_header_byte++; + + if (this.strm.avail_in === 1) { + // The only available byte was already read. + break; + } + } else { + this.mode = exports.INFLATE; + break; + } + + // fallthrough + case 1: + if (next_expected_header_byte === null) { + break; + } + + if (this.strm.input[next_expected_header_byte] === GZIP_HEADER_ID2) { + this.gzip_id_bytes_read = 2; + this.mode = exports.GUNZIP; + } else { + // There is no actual difference between INFLATE and INFLATERAW + // (after initialization). + this.mode = exports.INFLATE; + } + + break; + default: + throw new Error('invalid number of gzip magic number bytes read'); + } + + // fallthrough + case exports.INFLATE: + case exports.GUNZIP: + case exports.INFLATERAW: + this.err = zlib_inflate.inflate(this.strm, this.flush + + // If data was encoded with dictionary + );if (this.err === exports.Z_NEED_DICT && this.dictionary) { + // Load it + this.err = zlib_inflate.inflateSetDictionary(this.strm, this.dictionary); + if (this.err === exports.Z_OK) { + // And try to decode again + this.err = zlib_inflate.inflate(this.strm, this.flush); + } else if (this.err === exports.Z_DATA_ERROR) { + // Both inflateSetDictionary() and inflate() return Z_DATA_ERROR. + // Make it possible for After() to tell a bad dictionary from bad + // input. + this.err = exports.Z_NEED_DICT; + } + } + while (this.strm.avail_in > 0 && this.mode === exports.GUNZIP && this.err === exports.Z_STREAM_END && this.strm.next_in[0] !== 0x00) { + // Bytes remain in input buffer. Perhaps this is another compressed + // member in the same archive, or just trailing garbage. + // Trailing zero bytes are okay, though, since they are frequently + // used for padding. + + this.reset(); + this.err = zlib_inflate.inflate(this.strm, this.flush); + } break; default: - this.write = passThroughWrite; - return; + throw new Error('Unknown mode ' + this.mode); + } +}; + +Zlib.prototype._checkError = function () { + // Acceptable error states depend on the type of zlib stream. + switch (this.err) { + case exports.Z_OK: + case exports.Z_BUF_ERROR: + if (this.strm.avail_out !== 0 && this.flush === exports.Z_FINISH) { + this._error('unexpected end of file'); + return false; + } + break; + case exports.Z_STREAM_END: + // normal statuses, not fatal + break; + case exports.Z_NEED_DICT: + if (this.dictionary == null) { + this._error('Missing dictionary'); + } else { + this._error('Bad dictionary'); + } + return false; + default: + // something else. + this._error('Zlib error'); + return false; } - // Enough space to store all bytes of a single character. UTF-8 needs 4 - // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate). - this.charBuffer = new Buffer(6); - // Number of bytes received for the current incomplete multi-byte character. - this.charReceived = 0; - // Number of bytes expected for the current incomplete multi-byte character. - this.charLength = 0; + return true; +}; + +Zlib.prototype._after = function () { + if (!this._checkError()) { + return; + } + + var avail_out = this.strm.avail_out; + var avail_in = this.strm.avail_in; + + this.write_in_progress = false; + + // call the write() cb + this.callback(avail_in, avail_out); + + if (this.pending_close) { + this.close(); + } +}; + +Zlib.prototype._error = function (message) { + if (this.strm.msg) { + message = this.strm.msg; + } + this.onerror(message, this.err + + // no hope of rescue. + );this.write_in_progress = false; + if (this.pending_close) { + this.close(); + } +}; + +Zlib.prototype.init = function (windowBits, level, memLevel, strategy, dictionary) { + assert(arguments.length === 4 || arguments.length === 5, 'init(windowBits, level, memLevel, strategy, [dictionary])'); + + assert(windowBits >= 8 && windowBits <= 15, 'invalid windowBits'); + assert(level >= -1 && level <= 9, 'invalid compression level'); + + assert(memLevel >= 1 && memLevel <= 9, 'invalid memlevel'); + + assert(strategy === exports.Z_FILTERED || strategy === exports.Z_HUFFMAN_ONLY || strategy === exports.Z_RLE || strategy === exports.Z_FIXED || strategy === exports.Z_DEFAULT_STRATEGY, 'invalid strategy'); + + this._init(level, windowBits, memLevel, strategy, dictionary); + this._setDictionary(); +}; + +Zlib.prototype.params = function () { + throw new Error('deflateParams Not supported'); +}; + +Zlib.prototype.reset = function () { + this._reset(); + this._setDictionary(); +}; + +Zlib.prototype._init = function (level, windowBits, memLevel, strategy, dictionary) { + this.level = level; + this.windowBits = windowBits; + this.memLevel = memLevel; + this.strategy = strategy; + + this.flush = exports.Z_NO_FLUSH; + + this.err = exports.Z_OK; + + if (this.mode === exports.GZIP || this.mode === exports.GUNZIP) { + this.windowBits += 16; + } + + if (this.mode === exports.UNZIP) { + this.windowBits += 32; + } + + if (this.mode === exports.DEFLATERAW || this.mode === exports.INFLATERAW) { + this.windowBits = -1 * this.windowBits; + } + + this.strm = new Zstream(); + + switch (this.mode) { + case exports.DEFLATE: + case exports.GZIP: + case exports.DEFLATERAW: + this.err = zlib_deflate.deflateInit2(this.strm, this.level, exports.Z_DEFLATED, this.windowBits, this.memLevel, this.strategy); + break; + case exports.INFLATE: + case exports.GUNZIP: + case exports.INFLATERAW: + case exports.UNZIP: + this.err = zlib_inflate.inflateInit2(this.strm, this.windowBits); + break; + default: + throw new Error('Unknown mode ' + this.mode); + } + + if (this.err !== exports.Z_OK) { + this._error('Init error'); + } + + this.dictionary = dictionary; + + this.write_in_progress = false; + this.init_done = true; +}; + +Zlib.prototype._setDictionary = function () { + if (this.dictionary == null) { + return; + } + + this.err = exports.Z_OK; + + switch (this.mode) { + case exports.DEFLATE: + case exports.DEFLATERAW: + this.err = zlib_deflate.deflateSetDictionary(this.strm, this.dictionary); + break; + default: + break; + } + + if (this.err !== exports.Z_OK) { + this._error('Failed to set dictionary'); + } +}; + +Zlib.prototype._reset = function () { + this.err = exports.Z_OK; + + switch (this.mode) { + case exports.DEFLATE: + case exports.DEFLATERAW: + case exports.GZIP: + this.err = zlib_deflate.deflateReset(this.strm); + break; + case exports.INFLATE: + case exports.INFLATERAW: + case exports.GUNZIP: + this.err = zlib_inflate.inflateReset(this.strm); + break; + default: + break; + } + + if (this.err !== exports.Z_OK) { + this._error('Failed to reset stream'); + } +}; + +exports.Zlib = Zlib; +}).call(this,require('_process'),require("buffer").Buffer) +},{"_process":117,"assert":40,"buffer":47,"pako/lib/zlib/constants":51,"pako/lib/zlib/deflate.js":53,"pako/lib/zlib/inflate.js":55,"pako/lib/zlib/zstream":59}],45:[function(require,module,exports){ +(function (process){ +'use strict'; + +var Buffer = require('buffer').Buffer; +var Transform = require('stream').Transform; +var binding = require('./binding'); +var util = require('util'); +var assert = require('assert').ok; +var kMaxLength = require('buffer').kMaxLength; +var kRangeErrorMessage = 'Cannot create final Buffer. It would be larger ' + 'than 0x' + kMaxLength.toString(16) + ' bytes'; + +// zlib doesn't provide these, so kludge them in following the same +// const naming scheme zlib uses. +binding.Z_MIN_WINDOWBITS = 8; +binding.Z_MAX_WINDOWBITS = 15; +binding.Z_DEFAULT_WINDOWBITS = 15; + +// fewer than 64 bytes per chunk is stupid. +// technically it could work with as few as 8, but even 64 bytes +// is absurdly low. Usually a MB or more is best. +binding.Z_MIN_CHUNK = 64; +binding.Z_MAX_CHUNK = Infinity; +binding.Z_DEFAULT_CHUNK = 16 * 1024; + +binding.Z_MIN_MEMLEVEL = 1; +binding.Z_MAX_MEMLEVEL = 9; +binding.Z_DEFAULT_MEMLEVEL = 8; + +binding.Z_MIN_LEVEL = -1; +binding.Z_MAX_LEVEL = 9; +binding.Z_DEFAULT_LEVEL = binding.Z_DEFAULT_COMPRESSION; + +// expose all the zlib constants +var bkeys = Object.keys(binding); +for (var bk = 0; bk < bkeys.length; bk++) { + var bkey = bkeys[bk]; + if (bkey.match(/^Z/)) { + Object.defineProperty(exports, bkey, { + enumerable: true, value: binding[bkey], writable: false + }); + } +} + +// translation table for return codes. +var codes = { + Z_OK: binding.Z_OK, + Z_STREAM_END: binding.Z_STREAM_END, + Z_NEED_DICT: binding.Z_NEED_DICT, + Z_ERRNO: binding.Z_ERRNO, + Z_STREAM_ERROR: binding.Z_STREAM_ERROR, + Z_DATA_ERROR: binding.Z_DATA_ERROR, + Z_MEM_ERROR: binding.Z_MEM_ERROR, + Z_BUF_ERROR: binding.Z_BUF_ERROR, + Z_VERSION_ERROR: binding.Z_VERSION_ERROR +}; + +var ckeys = Object.keys(codes); +for (var ck = 0; ck < ckeys.length; ck++) { + var ckey = ckeys[ck]; + codes[codes[ckey]] = ckey; +} + +Object.defineProperty(exports, 'codes', { + enumerable: true, value: Object.freeze(codes), writable: false +}); + +exports.Deflate = Deflate; +exports.Inflate = Inflate; +exports.Gzip = Gzip; +exports.Gunzip = Gunzip; +exports.DeflateRaw = DeflateRaw; +exports.InflateRaw = InflateRaw; +exports.Unzip = Unzip; + +exports.createDeflate = function (o) { + return new Deflate(o); +}; + +exports.createInflate = function (o) { + return new Inflate(o); +}; + +exports.createDeflateRaw = function (o) { + return new DeflateRaw(o); +}; + +exports.createInflateRaw = function (o) { + return new InflateRaw(o); +}; + +exports.createGzip = function (o) { + return new Gzip(o); +}; + +exports.createGunzip = function (o) { + return new Gunzip(o); +}; + +exports.createUnzip = function (o) { + return new Unzip(o); +}; + +// Convenience methods. +// compress/decompress a string or buffer in one step. +exports.deflate = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new Deflate(opts), buffer, callback); +}; + +exports.deflateSync = function (buffer, opts) { + return zlibBufferSync(new Deflate(opts), buffer); +}; + +exports.gzip = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new Gzip(opts), buffer, callback); +}; + +exports.gzipSync = function (buffer, opts) { + return zlibBufferSync(new Gzip(opts), buffer); +}; + +exports.deflateRaw = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new DeflateRaw(opts), buffer, callback); +}; + +exports.deflateRawSync = function (buffer, opts) { + return zlibBufferSync(new DeflateRaw(opts), buffer); +}; + +exports.unzip = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new Unzip(opts), buffer, callback); +}; + +exports.unzipSync = function (buffer, opts) { + return zlibBufferSync(new Unzip(opts), buffer); +}; + +exports.inflate = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new Inflate(opts), buffer, callback); +}; + +exports.inflateSync = function (buffer, opts) { + return zlibBufferSync(new Inflate(opts), buffer); +}; + +exports.gunzip = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new Gunzip(opts), buffer, callback); +}; + +exports.gunzipSync = function (buffer, opts) { + return zlibBufferSync(new Gunzip(opts), buffer); +}; + +exports.inflateRaw = function (buffer, opts, callback) { + if (typeof opts === 'function') { + callback = opts; + opts = {}; + } + return zlibBuffer(new InflateRaw(opts), buffer, callback); +}; + +exports.inflateRawSync = function (buffer, opts) { + return zlibBufferSync(new InflateRaw(opts), buffer); +}; + +function zlibBuffer(engine, buffer, callback) { + var buffers = []; + var nread = 0; + + engine.on('error', onError); + engine.on('end', onEnd); + + engine.end(buffer); + flow(); + + function flow() { + var chunk; + while (null !== (chunk = engine.read())) { + buffers.push(chunk); + nread += chunk.length; + } + engine.once('readable', flow); + } + + function onError(err) { + engine.removeListener('end', onEnd); + engine.removeListener('readable', flow); + callback(err); + } + + function onEnd() { + var buf; + var err = null; + + if (nread >= kMaxLength) { + err = new RangeError(kRangeErrorMessage); + } else { + buf = Buffer.concat(buffers, nread); + } + + buffers = []; + engine.close(); + callback(err, buf); + } +} + +function zlibBufferSync(engine, buffer) { + if (typeof buffer === 'string') buffer = Buffer.from(buffer); + + if (!Buffer.isBuffer(buffer)) throw new TypeError('Not a string or buffer'); + + var flushFlag = engine._finishFlushFlag; + + return engine._processChunk(buffer, flushFlag); +} + +// generic zlib +// minimal 2-byte header +function Deflate(opts) { + if (!(this instanceof Deflate)) return new Deflate(opts); + Zlib.call(this, opts, binding.DEFLATE); +} + +function Inflate(opts) { + if (!(this instanceof Inflate)) return new Inflate(opts); + Zlib.call(this, opts, binding.INFLATE); +} + +// gzip - bigger header, same deflate compression +function Gzip(opts) { + if (!(this instanceof Gzip)) return new Gzip(opts); + Zlib.call(this, opts, binding.GZIP); +} + +function Gunzip(opts) { + if (!(this instanceof Gunzip)) return new Gunzip(opts); + Zlib.call(this, opts, binding.GUNZIP); +} + +// raw - no header +function DeflateRaw(opts) { + if (!(this instanceof DeflateRaw)) return new DeflateRaw(opts); + Zlib.call(this, opts, binding.DEFLATERAW); +} + +function InflateRaw(opts) { + if (!(this instanceof InflateRaw)) return new InflateRaw(opts); + Zlib.call(this, opts, binding.INFLATERAW); +} + +// auto-detect header. +function Unzip(opts) { + if (!(this instanceof Unzip)) return new Unzip(opts); + Zlib.call(this, opts, binding.UNZIP); +} + +function isValidFlushFlag(flag) { + return flag === binding.Z_NO_FLUSH || flag === binding.Z_PARTIAL_FLUSH || flag === binding.Z_SYNC_FLUSH || flag === binding.Z_FULL_FLUSH || flag === binding.Z_FINISH || flag === binding.Z_BLOCK; +} + +// the Zlib class they all inherit from +// This thing manages the queue of requests, and returns +// true or false if there is anything in the queue when +// you call the .write() method. + +function Zlib(opts, mode) { + var _this = this; + + this._opts = opts = opts || {}; + this._chunkSize = opts.chunkSize || exports.Z_DEFAULT_CHUNK; + + Transform.call(this, opts); + + if (opts.flush && !isValidFlushFlag(opts.flush)) { + throw new Error('Invalid flush flag: ' + opts.flush); + } + if (opts.finishFlush && !isValidFlushFlag(opts.finishFlush)) { + throw new Error('Invalid flush flag: ' + opts.finishFlush); + } + + this._flushFlag = opts.flush || binding.Z_NO_FLUSH; + this._finishFlushFlag = typeof opts.finishFlush !== 'undefined' ? opts.finishFlush : binding.Z_FINISH; + + if (opts.chunkSize) { + if (opts.chunkSize < exports.Z_MIN_CHUNK || opts.chunkSize > exports.Z_MAX_CHUNK) { + throw new Error('Invalid chunk size: ' + opts.chunkSize); + } + } + + if (opts.windowBits) { + if (opts.windowBits < exports.Z_MIN_WINDOWBITS || opts.windowBits > exports.Z_MAX_WINDOWBITS) { + throw new Error('Invalid windowBits: ' + opts.windowBits); + } + } + + if (opts.level) { + if (opts.level < exports.Z_MIN_LEVEL || opts.level > exports.Z_MAX_LEVEL) { + throw new Error('Invalid compression level: ' + opts.level); + } + } + + if (opts.memLevel) { + if (opts.memLevel < exports.Z_MIN_MEMLEVEL || opts.memLevel > exports.Z_MAX_MEMLEVEL) { + throw new Error('Invalid memLevel: ' + opts.memLevel); + } + } + + if (opts.strategy) { + if (opts.strategy != exports.Z_FILTERED && opts.strategy != exports.Z_HUFFMAN_ONLY && opts.strategy != exports.Z_RLE && opts.strategy != exports.Z_FIXED && opts.strategy != exports.Z_DEFAULT_STRATEGY) { + throw new Error('Invalid strategy: ' + opts.strategy); + } + } + + if (opts.dictionary) { + if (!Buffer.isBuffer(opts.dictionary)) { + throw new Error('Invalid dictionary: it should be a Buffer instance'); + } + } + + this._handle = new binding.Zlib(mode); + + var self = this; + this._hadError = false; + this._handle.onerror = function (message, errno) { + // there is no way to cleanly recover. + // continuing only obscures problems. + _close(self); + self._hadError = true; + + var error = new Error(message); + error.errno = errno; + error.code = exports.codes[errno]; + self.emit('error', error); + }; + + var level = exports.Z_DEFAULT_COMPRESSION; + if (typeof opts.level === 'number') level = opts.level; + + var strategy = exports.Z_DEFAULT_STRATEGY; + if (typeof opts.strategy === 'number') strategy = opts.strategy; + + this._handle.init(opts.windowBits || exports.Z_DEFAULT_WINDOWBITS, level, opts.memLevel || exports.Z_DEFAULT_MEMLEVEL, strategy, opts.dictionary); + + this._buffer = Buffer.allocUnsafe(this._chunkSize); + this._offset = 0; + this._level = level; + this._strategy = strategy; + + this.once('end', this.close); + + Object.defineProperty(this, '_closed', { + get: function () { + return !_this._handle; + }, + configurable: true, + enumerable: true + }); +} + +util.inherits(Zlib, Transform); + +Zlib.prototype.params = function (level, strategy, callback) { + if (level < exports.Z_MIN_LEVEL || level > exports.Z_MAX_LEVEL) { + throw new RangeError('Invalid compression level: ' + level); + } + if (strategy != exports.Z_FILTERED && strategy != exports.Z_HUFFMAN_ONLY && strategy != exports.Z_RLE && strategy != exports.Z_FIXED && strategy != exports.Z_DEFAULT_STRATEGY) { + throw new TypeError('Invalid strategy: ' + strategy); + } + + if (this._level !== level || this._strategy !== strategy) { + var self = this; + this.flush(binding.Z_SYNC_FLUSH, function () { + assert(self._handle, 'zlib binding closed'); + self._handle.params(level, strategy); + if (!self._hadError) { + self._level = level; + self._strategy = strategy; + if (callback) callback(); + } + }); + } else { + process.nextTick(callback); + } +}; + +Zlib.prototype.reset = function () { + assert(this._handle, 'zlib binding closed'); + return this._handle.reset(); +}; + +// This is the _flush function called by the transform class, +// internally, when the last chunk has been written. +Zlib.prototype._flush = function (callback) { + this._transform(Buffer.alloc(0), '', callback); +}; + +Zlib.prototype.flush = function (kind, callback) { + var _this2 = this; + + var ws = this._writableState; + + if (typeof kind === 'function' || kind === undefined && !callback) { + callback = kind; + kind = binding.Z_FULL_FLUSH; + } + + if (ws.ended) { + if (callback) process.nextTick(callback); + } else if (ws.ending) { + if (callback) this.once('end', callback); + } else if (ws.needDrain) { + if (callback) { + this.once('drain', function () { + return _this2.flush(kind, callback); + }); + } + } else { + this._flushFlag = kind; + this.write(Buffer.alloc(0), '', callback); + } +}; + +Zlib.prototype.close = function (callback) { + _close(this, callback); + process.nextTick(emitCloseNT, this); +}; + +function _close(engine, callback) { + if (callback) process.nextTick(callback); + + // Caller may invoke .close after a zlib error (which will null _handle). + if (!engine._handle) return; + + engine._handle.close(); + engine._handle = null; +} + +function emitCloseNT(self) { + self.emit('close'); +} + +Zlib.prototype._transform = function (chunk, encoding, cb) { + var flushFlag; + var ws = this._writableState; + var ending = ws.ending || ws.ended; + var last = ending && (!chunk || ws.length === chunk.length); + + if (chunk !== null && !Buffer.isBuffer(chunk)) return cb(new Error('invalid input')); + + if (!this._handle) return cb(new Error('zlib binding closed')); + + // If it's the last chunk, or a final flush, we use the Z_FINISH flush flag + // (or whatever flag was provided using opts.finishFlush). + // If it's explicitly flushing at some other time, then we use + // Z_FULL_FLUSH. Otherwise, use Z_NO_FLUSH for maximum compression + // goodness. + if (last) flushFlag = this._finishFlushFlag;else { + flushFlag = this._flushFlag; + // once we've flushed the last of the queue, stop flushing and + // go back to the normal behavior. + if (chunk.length >= ws.length) { + this._flushFlag = this._opts.flush || binding.Z_NO_FLUSH; + } + } + + this._processChunk(chunk, flushFlag, cb); +}; + +Zlib.prototype._processChunk = function (chunk, flushFlag, cb) { + var availInBefore = chunk && chunk.length; + var availOutBefore = this._chunkSize - this._offset; + var inOff = 0; + + var self = this; + + var async = typeof cb === 'function'; + + if (!async) { + var buffers = []; + var nread = 0; + + var error; + this.on('error', function (er) { + error = er; + }); + + assert(this._handle, 'zlib binding closed'); + do { + var res = this._handle.writeSync(flushFlag, chunk, // in + inOff, // in_off + availInBefore, // in_len + this._buffer, // out + this._offset, //out_off + availOutBefore); // out_len + } while (!this._hadError && callback(res[0], res[1])); + + if (this._hadError) { + throw error; + } + + if (nread >= kMaxLength) { + _close(this); + throw new RangeError(kRangeErrorMessage); + } + + var buf = Buffer.concat(buffers, nread); + _close(this); + + return buf; + } + + assert(this._handle, 'zlib binding closed'); + var req = this._handle.write(flushFlag, chunk, // in + inOff, // in_off + availInBefore, // in_len + this._buffer, // out + this._offset, //out_off + availOutBefore); // out_len + + req.buffer = chunk; + req.callback = callback; + + function callback(availInAfter, availOutAfter) { + // When the callback is used in an async write, the callback's + // context is the `req` object that was created. The req object + // is === this._handle, and that's why it's important to null + // out the values after they are done being used. `this._handle` + // can stay in memory longer than the callback and buffer are needed. + if (this) { + this.buffer = null; + this.callback = null; + } + + if (self._hadError) return; + + var have = availOutBefore - availOutAfter; + assert(have >= 0, 'have should not go down'); + + if (have > 0) { + var out = self._buffer.slice(self._offset, self._offset + have); + self._offset += have; + // serve some output to the consumer. + if (async) { + self.push(out); + } else { + buffers.push(out); + nread += out.length; + } + } + + // exhausted the output buffer, or used all the input create a new one. + if (availOutAfter === 0 || self._offset >= self._chunkSize) { + availOutBefore = self._chunkSize; + self._offset = 0; + self._buffer = Buffer.allocUnsafe(self._chunkSize); + } + + if (availOutAfter === 0) { + // Not actually done. Need to reprocess. + // Also, update the availInBefore to the availInAfter value, + // so that if we have to hit it a third (fourth, etc.) time, + // it'll have the correct byte counts. + inOff += availInBefore - availInAfter; + availInBefore = availInAfter; + + if (!async) return true; + + var newReq = self._handle.write(flushFlag, chunk, inOff, availInBefore, self._buffer, self._offset, self._chunkSize); + newReq.callback = callback; // this same function + newReq.buffer = chunk; + return; + } + + if (!async) return false; + + // finished with the chunk. + cb(); + } +}; + +util.inherits(Deflate, Zlib); +util.inherits(Inflate, Zlib); +util.inherits(Gzip, Zlib); +util.inherits(Gunzip, Zlib); +util.inherits(DeflateRaw, Zlib); +util.inherits(InflateRaw, Zlib); +util.inherits(Unzip, Zlib); +}).call(this,require('_process')) +},{"./binding":44,"_process":117,"assert":40,"buffer":47,"stream":139,"util":150}],46:[function(require,module,exports){ +arguments[4][4][0].apply(exports,arguments) +},{"dup":4}],47:[function(require,module,exports){ +/*! + * The buffer module from node.js, for the browser. + * + * @author Feross Aboukhadijeh + * @license MIT + */ +/* eslint-disable no-proto */ + +'use strict' + +var base64 = require('base64-js') +var ieee754 = require('ieee754') + +exports.Buffer = Buffer +exports.SlowBuffer = SlowBuffer +exports.INSPECT_MAX_BYTES = 50 + +var K_MAX_LENGTH = 0x7fffffff +exports.kMaxLength = K_MAX_LENGTH + +/** + * If `Buffer.TYPED_ARRAY_SUPPORT`: + * === true Use Uint8Array implementation (fastest) + * === false Print warning and recommend using `buffer` v4.x which has an Object + * implementation (most compatible, even IE6) + * + * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+, + * Opera 11.6+, iOS 4.2+. + * + * We report that the browser does not support typed arrays if the are not subclassable + * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array` + * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support + * for __proto__ and has a buggy typed array implementation. + */ +Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport() + +if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' && + typeof console.error === 'function') { + console.error( + 'This browser lacks typed array (Uint8Array) support which is required by ' + + '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.' + ) +} + +function typedArraySupport () { + // Can typed array instances can be augmented? + try { + var arr = new Uint8Array(1) + arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }} + return arr.foo() === 42 + } catch (e) { + return false + } +} + +function createBuffer (length) { + if (length > K_MAX_LENGTH) { + throw new RangeError('Invalid typed array length') + } + // Return an augmented `Uint8Array` instance + var buf = new Uint8Array(length) + buf.__proto__ = Buffer.prototype + return buf +} + +/** + * The Buffer constructor returns instances of `Uint8Array` that have their + * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of + * `Uint8Array`, so the returned instances will have all the node `Buffer` methods + * and the `Uint8Array` methods. Square bracket notation works as expected -- it + * returns a single octet. + * + * The `Uint8Array` prototype remains unmodified. + */ + +function Buffer (arg, encodingOrOffset, length) { + // Common case. + if (typeof arg === 'number') { + if (typeof encodingOrOffset === 'string') { + throw new Error( + 'If encoding is specified then the first argument must be a string' + ) + } + return allocUnsafe(arg) + } + return from(arg, encodingOrOffset, length) +} + +// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97 +if (typeof Symbol !== 'undefined' && Symbol.species && + Buffer[Symbol.species] === Buffer) { + Object.defineProperty(Buffer, Symbol.species, { + value: null, + configurable: true, + enumerable: false, + writable: false + }) +} + +Buffer.poolSize = 8192 // not used by this implementation + +function from (value, encodingOrOffset, length) { + if (typeof value === 'number') { + throw new TypeError('"value" argument must not be a number') + } + + if (isArrayBuffer(value)) { + return fromArrayBuffer(value, encodingOrOffset, length) + } + + if (typeof value === 'string') { + return fromString(value, encodingOrOffset) + } + + return fromObject(value) +} + +/** + * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError + * if value is a number. + * Buffer.from(str[, encoding]) + * Buffer.from(array) + * Buffer.from(buffer) + * Buffer.from(arrayBuffer[, byteOffset[, length]]) + **/ +Buffer.from = function (value, encodingOrOffset, length) { + return from(value, encodingOrOffset, length) +} + +// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug: +// https://github.com/feross/buffer/pull/148 +Buffer.prototype.__proto__ = Uint8Array.prototype +Buffer.__proto__ = Uint8Array + +function assertSize (size) { + if (typeof size !== 'number') { + throw new TypeError('"size" argument must be a number') + } else if (size < 0) { + throw new RangeError('"size" argument must not be negative') + } +} + +function alloc (size, fill, encoding) { + assertSize(size) + if (size <= 0) { + return createBuffer(size) + } + if (fill !== undefined) { + // Only pay attention to encoding if it's a string. This + // prevents accidentally sending in a number that would + // be interpretted as a start offset. + return typeof encoding === 'string' + ? createBuffer(size).fill(fill, encoding) + : createBuffer(size).fill(fill) + } + return createBuffer(size) +} + +/** + * Creates a new filled Buffer instance. + * alloc(size[, fill[, encoding]]) + **/ +Buffer.alloc = function (size, fill, encoding) { + return alloc(size, fill, encoding) +} + +function allocUnsafe (size) { + assertSize(size) + return createBuffer(size < 0 ? 0 : checked(size) | 0) +} + +/** + * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance. + * */ +Buffer.allocUnsafe = function (size) { + return allocUnsafe(size) +} +/** + * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance. + */ +Buffer.allocUnsafeSlow = function (size) { + return allocUnsafe(size) +} + +function fromString (string, encoding) { + if (typeof encoding !== 'string' || encoding === '') { + encoding = 'utf8' + } + + if (!Buffer.isEncoding(encoding)) { + throw new TypeError('"encoding" must be a valid string encoding') + } + + var length = byteLength(string, encoding) | 0 + var buf = createBuffer(length) + + var actual = buf.write(string, encoding) + + if (actual !== length) { + // Writing a hex string, for example, that contains invalid characters will + // cause everything after the first invalid character to be ignored. (e.g. + // 'abxxcd' will be treated as 'ab') + buf = buf.slice(0, actual) + } + + return buf +} + +function fromArrayLike (array) { + var length = array.length < 0 ? 0 : checked(array.length) | 0 + var buf = createBuffer(length) + for (var i = 0; i < length; i += 1) { + buf[i] = array[i] & 255 + } + return buf +} + +function fromArrayBuffer (array, byteOffset, length) { + if (byteOffset < 0 || array.byteLength < byteOffset) { + throw new RangeError('\'offset\' is out of bounds') + } + + if (array.byteLength < byteOffset + (length || 0)) { + throw new RangeError('\'length\' is out of bounds') + } + + var buf + if (byteOffset === undefined && length === undefined) { + buf = new Uint8Array(array) + } else if (length === undefined) { + buf = new Uint8Array(array, byteOffset) + } else { + buf = new Uint8Array(array, byteOffset, length) + } + + // Return an augmented `Uint8Array` instance + buf.__proto__ = Buffer.prototype + return buf +} + +function fromObject (obj) { + if (Buffer.isBuffer(obj)) { + var len = checked(obj.length) | 0 + var buf = createBuffer(len) + + if (buf.length === 0) { + return buf + } + + obj.copy(buf, 0, 0, len) + return buf + } + + if (obj) { + if (isArrayBufferView(obj) || 'length' in obj) { + if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) { + return createBuffer(0) + } + return fromArrayLike(obj) + } + + if (obj.type === 'Buffer' && Array.isArray(obj.data)) { + return fromArrayLike(obj.data) + } + } + + throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.') +} + +function checked (length) { + // Note: cannot use `length < K_MAX_LENGTH` here because that fails when + // length is NaN (which is otherwise coerced to zero.) + if (length >= K_MAX_LENGTH) { + throw new RangeError('Attempt to allocate Buffer larger than maximum ' + + 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes') + } + return length | 0 +} + +function SlowBuffer (length) { + if (+length != length) { // eslint-disable-line eqeqeq + length = 0 + } + return Buffer.alloc(+length) +} + +Buffer.isBuffer = function isBuffer (b) { + return b != null && b._isBuffer === true +} + +Buffer.compare = function compare (a, b) { + if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) { + throw new TypeError('Arguments must be Buffers') + } + + if (a === b) return 0 + + var x = a.length + var y = b.length + + for (var i = 0, len = Math.min(x, y); i < len; ++i) { + if (a[i] !== b[i]) { + x = a[i] + y = b[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +Buffer.isEncoding = function isEncoding (encoding) { + switch (String(encoding).toLowerCase()) { + case 'hex': + case 'utf8': + case 'utf-8': + case 'ascii': + case 'latin1': + case 'binary': + case 'base64': + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return true + default: + return false + } +} + +Buffer.concat = function concat (list, length) { + if (!Array.isArray(list)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + + if (list.length === 0) { + return Buffer.alloc(0) + } + + var i + if (length === undefined) { + length = 0 + for (i = 0; i < list.length; ++i) { + length += list[i].length + } + } + + var buffer = Buffer.allocUnsafe(length) + var pos = 0 + for (i = 0; i < list.length; ++i) { + var buf = list[i] + if (!Buffer.isBuffer(buf)) { + throw new TypeError('"list" argument must be an Array of Buffers') + } + buf.copy(buffer, pos) + pos += buf.length + } + return buffer +} + +function byteLength (string, encoding) { + if (Buffer.isBuffer(string)) { + return string.length + } + if (isArrayBufferView(string) || isArrayBuffer(string)) { + return string.byteLength + } + if (typeof string !== 'string') { + string = '' + string + } + + var len = string.length + if (len === 0) return 0 + + // Use a for loop to avoid recursion + var loweredCase = false + for (;;) { + switch (encoding) { + case 'ascii': + case 'latin1': + case 'binary': + return len + case 'utf8': + case 'utf-8': + case undefined: + return utf8ToBytes(string).length + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return len * 2 + case 'hex': + return len >>> 1 + case 'base64': + return base64ToBytes(string).length + default: + if (loweredCase) return utf8ToBytes(string).length // assume utf8 + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} +Buffer.byteLength = byteLength + +function slowToString (encoding, start, end) { + var loweredCase = false + + // No need to verify that "this.length <= MAX_UINT32" since it's a read-only + // property of a typed array. + + // This behaves neither like String nor Uint8Array in that we set start/end + // to their upper/lower bounds if the value passed is out of range. + // undefined is handled specially as per ECMA-262 6th Edition, + // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization. + if (start === undefined || start < 0) { + start = 0 + } + // Return early if start > this.length. Done here to prevent potential uint32 + // coercion fail below. + if (start > this.length) { + return '' + } + + if (end === undefined || end > this.length) { + end = this.length + } + + if (end <= 0) { + return '' + } + + // Force coersion to uint32. This will also coerce falsey/NaN values to 0. + end >>>= 0 + start >>>= 0 + + if (end <= start) { + return '' + } + + if (!encoding) encoding = 'utf8' + + while (true) { + switch (encoding) { + case 'hex': + return hexSlice(this, start, end) + + case 'utf8': + case 'utf-8': + return utf8Slice(this, start, end) + + case 'ascii': + return asciiSlice(this, start, end) + + case 'latin1': + case 'binary': + return latin1Slice(this, start, end) + + case 'base64': + return base64Slice(this, start, end) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return utf16leSlice(this, start, end) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = (encoding + '').toLowerCase() + loweredCase = true + } + } +} + +// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package) +// to detect a Buffer instance. It's not possible to use `instanceof Buffer` +// reliably in a browserify context because there could be multiple different +// copies of the 'buffer' package in use. This method works even for Buffer +// instances that were created from another copy of the `buffer` package. +// See: https://github.com/feross/buffer/issues/154 +Buffer.prototype._isBuffer = true + +function swap (b, n, m) { + var i = b[n] + b[n] = b[m] + b[m] = i +} + +Buffer.prototype.swap16 = function swap16 () { + var len = this.length + if (len % 2 !== 0) { + throw new RangeError('Buffer size must be a multiple of 16-bits') + } + for (var i = 0; i < len; i += 2) { + swap(this, i, i + 1) + } + return this +} + +Buffer.prototype.swap32 = function swap32 () { + var len = this.length + if (len % 4 !== 0) { + throw new RangeError('Buffer size must be a multiple of 32-bits') + } + for (var i = 0; i < len; i += 4) { + swap(this, i, i + 3) + swap(this, i + 1, i + 2) + } + return this +} + +Buffer.prototype.swap64 = function swap64 () { + var len = this.length + if (len % 8 !== 0) { + throw new RangeError('Buffer size must be a multiple of 64-bits') + } + for (var i = 0; i < len; i += 8) { + swap(this, i, i + 7) + swap(this, i + 1, i + 6) + swap(this, i + 2, i + 5) + swap(this, i + 3, i + 4) + } + return this +} + +Buffer.prototype.toString = function toString () { + var length = this.length + if (length === 0) return '' + if (arguments.length === 0) return utf8Slice(this, 0, length) + return slowToString.apply(this, arguments) +} + +Buffer.prototype.equals = function equals (b) { + if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer') + if (this === b) return true + return Buffer.compare(this, b) === 0 +} + +Buffer.prototype.inspect = function inspect () { + var str = '' + var max = exports.INSPECT_MAX_BYTES + if (this.length > 0) { + str = this.toString('hex', 0, max).match(/.{2}/g).join(' ') + if (this.length > max) str += ' ... ' + } + return '' +} + +Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) { + if (!Buffer.isBuffer(target)) { + throw new TypeError('Argument must be a Buffer') + } + + if (start === undefined) { + start = 0 + } + if (end === undefined) { + end = target ? target.length : 0 + } + if (thisStart === undefined) { + thisStart = 0 + } + if (thisEnd === undefined) { + thisEnd = this.length + } + + if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) { + throw new RangeError('out of range index') + } + + if (thisStart >= thisEnd && start >= end) { + return 0 + } + if (thisStart >= thisEnd) { + return -1 + } + if (start >= end) { + return 1 + } + + start >>>= 0 + end >>>= 0 + thisStart >>>= 0 + thisEnd >>>= 0 + + if (this === target) return 0 + + var x = thisEnd - thisStart + var y = end - start + var len = Math.min(x, y) + + var thisCopy = this.slice(thisStart, thisEnd) + var targetCopy = target.slice(start, end) + + for (var i = 0; i < len; ++i) { + if (thisCopy[i] !== targetCopy[i]) { + x = thisCopy[i] + y = targetCopy[i] + break + } + } + + if (x < y) return -1 + if (y < x) return 1 + return 0 +} + +// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`, +// OR the last index of `val` in `buffer` at offset <= `byteOffset`. +// +// Arguments: +// - buffer - a Buffer to search +// - val - a string, Buffer, or number +// - byteOffset - an index into `buffer`; will be clamped to an int32 +// - encoding - an optional encoding, relevant is val is a string +// - dir - true for indexOf, false for lastIndexOf +function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) { + // Empty buffer means no match + if (buffer.length === 0) return -1 + + // Normalize byteOffset + if (typeof byteOffset === 'string') { + encoding = byteOffset + byteOffset = 0 + } else if (byteOffset > 0x7fffffff) { + byteOffset = 0x7fffffff + } else if (byteOffset < -0x80000000) { + byteOffset = -0x80000000 + } + byteOffset = +byteOffset // Coerce to Number. + if (numberIsNaN(byteOffset)) { + // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer + byteOffset = dir ? 0 : (buffer.length - 1) + } + + // Normalize byteOffset: negative offsets start from the end of the buffer + if (byteOffset < 0) byteOffset = buffer.length + byteOffset + if (byteOffset >= buffer.length) { + if (dir) return -1 + else byteOffset = buffer.length - 1 + } else if (byteOffset < 0) { + if (dir) byteOffset = 0 + else return -1 + } + + // Normalize val + if (typeof val === 'string') { + val = Buffer.from(val, encoding) + } + + // Finally, search either indexOf (if dir is true) or lastIndexOf + if (Buffer.isBuffer(val)) { + // Special case: looking for empty string/buffer always fails + if (val.length === 0) { + return -1 + } + return arrayIndexOf(buffer, val, byteOffset, encoding, dir) + } else if (typeof val === 'number') { + val = val & 0xFF // Search for a byte value [0-255] + if (typeof Uint8Array.prototype.indexOf === 'function') { + if (dir) { + return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset) + } else { + return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset) + } + } + return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir) + } + + throw new TypeError('val must be string, number or Buffer') +} + +function arrayIndexOf (arr, val, byteOffset, encoding, dir) { + var indexSize = 1 + var arrLength = arr.length + var valLength = val.length + + if (encoding !== undefined) { + encoding = String(encoding).toLowerCase() + if (encoding === 'ucs2' || encoding === 'ucs-2' || + encoding === 'utf16le' || encoding === 'utf-16le') { + if (arr.length < 2 || val.length < 2) { + return -1 + } + indexSize = 2 + arrLength /= 2 + valLength /= 2 + byteOffset /= 2 + } + } + + function read (buf, i) { + if (indexSize === 1) { + return buf[i] + } else { + return buf.readUInt16BE(i * indexSize) + } + } + + var i + if (dir) { + var foundIndex = -1 + for (i = byteOffset; i < arrLength; i++) { + if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) { + if (foundIndex === -1) foundIndex = i + if (i - foundIndex + 1 === valLength) return foundIndex * indexSize + } else { + if (foundIndex !== -1) i -= i - foundIndex + foundIndex = -1 + } + } + } else { + if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength + for (i = byteOffset; i >= 0; i--) { + var found = true + for (var j = 0; j < valLength; j++) { + if (read(arr, i + j) !== read(val, j)) { + found = false + break + } + } + if (found) return i + } + } + + return -1 +} + +Buffer.prototype.includes = function includes (val, byteOffset, encoding) { + return this.indexOf(val, byteOffset, encoding) !== -1 +} + +Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, true) +} + +Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) { + return bidirectionalIndexOf(this, val, byteOffset, encoding, false) +} + +function hexWrite (buf, string, offset, length) { + offset = Number(offset) || 0 + var remaining = buf.length - offset + if (!length) { + length = remaining + } else { + length = Number(length) + if (length > remaining) { + length = remaining + } + } + + // must be an even number of digits + var strLen = string.length + if (strLen % 2 !== 0) throw new TypeError('Invalid hex string') + + if (length > strLen / 2) { + length = strLen / 2 + } + for (var i = 0; i < length; ++i) { + var parsed = parseInt(string.substr(i * 2, 2), 16) + if (numberIsNaN(parsed)) return i + buf[offset + i] = parsed + } + return i +} + +function utf8Write (buf, string, offset, length) { + return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length) +} + +function asciiWrite (buf, string, offset, length) { + return blitBuffer(asciiToBytes(string), buf, offset, length) +} + +function latin1Write (buf, string, offset, length) { + return asciiWrite(buf, string, offset, length) +} + +function base64Write (buf, string, offset, length) { + return blitBuffer(base64ToBytes(string), buf, offset, length) +} + +function ucs2Write (buf, string, offset, length) { + return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length) +} + +Buffer.prototype.write = function write (string, offset, length, encoding) { + // Buffer#write(string) + if (offset === undefined) { + encoding = 'utf8' + length = this.length + offset = 0 + // Buffer#write(string, encoding) + } else if (length === undefined && typeof offset === 'string') { + encoding = offset + length = this.length + offset = 0 + // Buffer#write(string, offset[, length][, encoding]) + } else if (isFinite(offset)) { + offset = offset >>> 0 + if (isFinite(length)) { + length = length >>> 0 + if (encoding === undefined) encoding = 'utf8' + } else { + encoding = length + length = undefined + } + } else { + throw new Error( + 'Buffer.write(string, encoding, offset[, length]) is no longer supported' + ) + } + + var remaining = this.length - offset + if (length === undefined || length > remaining) length = remaining + + if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) { + throw new RangeError('Attempt to write outside buffer bounds') + } + + if (!encoding) encoding = 'utf8' + + var loweredCase = false + for (;;) { + switch (encoding) { + case 'hex': + return hexWrite(this, string, offset, length) + + case 'utf8': + case 'utf-8': + return utf8Write(this, string, offset, length) + + case 'ascii': + return asciiWrite(this, string, offset, length) + + case 'latin1': + case 'binary': + return latin1Write(this, string, offset, length) + + case 'base64': + // Warning: maxLength not taken into account in base64Write + return base64Write(this, string, offset, length) + + case 'ucs2': + case 'ucs-2': + case 'utf16le': + case 'utf-16le': + return ucs2Write(this, string, offset, length) + + default: + if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding) + encoding = ('' + encoding).toLowerCase() + loweredCase = true + } + } +} + +Buffer.prototype.toJSON = function toJSON () { + return { + type: 'Buffer', + data: Array.prototype.slice.call(this._arr || this, 0) + } +} + +function base64Slice (buf, start, end) { + if (start === 0 && end === buf.length) { + return base64.fromByteArray(buf) + } else { + return base64.fromByteArray(buf.slice(start, end)) + } +} + +function utf8Slice (buf, start, end) { + end = Math.min(buf.length, end) + var res = [] + + var i = start + while (i < end) { + var firstByte = buf[i] + var codePoint = null + var bytesPerSequence = (firstByte > 0xEF) ? 4 + : (firstByte > 0xDF) ? 3 + : (firstByte > 0xBF) ? 2 + : 1 + + if (i + bytesPerSequence <= end) { + var secondByte, thirdByte, fourthByte, tempCodePoint + + switch (bytesPerSequence) { + case 1: + if (firstByte < 0x80) { + codePoint = firstByte + } + break + case 2: + secondByte = buf[i + 1] + if ((secondByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F) + if (tempCodePoint > 0x7F) { + codePoint = tempCodePoint + } + } + break + case 3: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F) + if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) { + codePoint = tempCodePoint + } + } + break + case 4: + secondByte = buf[i + 1] + thirdByte = buf[i + 2] + fourthByte = buf[i + 3] + if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) { + tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F) + if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) { + codePoint = tempCodePoint + } + } + } + } + + if (codePoint === null) { + // we did not generate a valid codePoint so insert a + // replacement char (U+FFFD) and advance only 1 byte + codePoint = 0xFFFD + bytesPerSequence = 1 + } else if (codePoint > 0xFFFF) { + // encode to utf16 (surrogate pair dance) + codePoint -= 0x10000 + res.push(codePoint >>> 10 & 0x3FF | 0xD800) + codePoint = 0xDC00 | codePoint & 0x3FF + } + + res.push(codePoint) + i += bytesPerSequence + } + + return decodeCodePointsArray(res) +} + +// Based on http://stackoverflow.com/a/22747272/680742, the browser with +// the lowest limit is Chrome, with 0x10000 args. +// We go 1 magnitude less, for safety +var MAX_ARGUMENTS_LENGTH = 0x1000 + +function decodeCodePointsArray (codePoints) { + var len = codePoints.length + if (len <= MAX_ARGUMENTS_LENGTH) { + return String.fromCharCode.apply(String, codePoints) // avoid extra slice() + } + + // Decode in chunks to avoid "call stack size exceeded". + var res = '' + var i = 0 + while (i < len) { + res += String.fromCharCode.apply( + String, + codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH) + ) + } + return res +} + +function asciiSlice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i] & 0x7F) + } + return ret +} + +function latin1Slice (buf, start, end) { + var ret = '' + end = Math.min(buf.length, end) + + for (var i = start; i < end; ++i) { + ret += String.fromCharCode(buf[i]) + } + return ret +} + +function hexSlice (buf, start, end) { + var len = buf.length + + if (!start || start < 0) start = 0 + if (!end || end < 0 || end > len) end = len + + var out = '' + for (var i = start; i < end; ++i) { + out += toHex(buf[i]) + } + return out +} + +function utf16leSlice (buf, start, end) { + var bytes = buf.slice(start, end) + var res = '' + for (var i = 0; i < bytes.length; i += 2) { + res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256)) + } + return res +} + +Buffer.prototype.slice = function slice (start, end) { + var len = this.length + start = ~~start + end = end === undefined ? len : ~~end + + if (start < 0) { + start += len + if (start < 0) start = 0 + } else if (start > len) { + start = len + } + + if (end < 0) { + end += len + if (end < 0) end = 0 + } else if (end > len) { + end = len + } + + if (end < start) end = start + + var newBuf = this.subarray(start, end) + // Return an augmented `Uint8Array` instance + newBuf.__proto__ = Buffer.prototype + return newBuf +} + +/* + * Need to make sure that buffer isn't trying to write out of bounds. + */ +function checkOffset (offset, ext, length) { + if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint') + if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length') +} + +Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + + return val +} + +Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + checkOffset(offset, byteLength, this.length) + } + + var val = this[offset + --byteLength] + var mul = 1 + while (byteLength > 0 && (mul *= 0x100)) { + val += this[offset + --byteLength] * mul + } + + return val +} + +Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + return this[offset] +} + +Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return this[offset] | (this[offset + 1] << 8) +} + +Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + return (this[offset] << 8) | this[offset + 1] +} + +Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return ((this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16)) + + (this[offset + 3] * 0x1000000) +} + +Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] * 0x1000000) + + ((this[offset + 1] << 16) | + (this[offset + 2] << 8) | + this[offset + 3]) +} + +Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var val = this[offset] + var mul = 1 + var i = 0 + while (++i < byteLength && (mul *= 0x100)) { + val += this[offset + i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) { + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) checkOffset(offset, byteLength, this.length) + + var i = byteLength + var mul = 1 + var val = this[offset + --i] + while (i > 0 && (mul *= 0x100)) { + val += this[offset + --i] * mul + } + mul *= 0x80 + + if (val >= mul) val -= Math.pow(2, 8 * byteLength) + + return val +} + +Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 1, this.length) + if (!(this[offset] & 0x80)) return (this[offset]) + return ((0xff - this[offset] + 1) * -1) +} + +Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset] | (this[offset + 1] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 2, this.length) + var val = this[offset + 1] | (this[offset] << 8) + return (val & 0x8000) ? val | 0xFFFF0000 : val +} + +Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset]) | + (this[offset + 1] << 8) | + (this[offset + 2] << 16) | + (this[offset + 3] << 24) +} + +Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + + return (this[offset] << 24) | + (this[offset + 1] << 16) | + (this[offset + 2] << 8) | + (this[offset + 3]) +} + +Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, true, 23, 4) +} + +Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 4, this.length) + return ieee754.read(this, offset, false, 23, 4) +} + +Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, true, 52, 8) +} + +Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) { + offset = offset >>> 0 + if (!noAssert) checkOffset(offset, 8, this.length) + return ieee754.read(this, offset, false, 52, 8) +} + +function checkInt (buf, value, offset, ext, max, min) { + if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance') + if (value > max || value < min) throw new RangeError('"value" argument is out of bounds') + if (offset + ext > buf.length) throw new RangeError('Index out of range') +} + +Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var mul = 1 + var i = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + byteLength = byteLength >>> 0 + if (!noAssert) { + var maxBytes = Math.pow(2, 8 * byteLength) - 1 + checkInt(this, value, offset, byteLength, maxBytes, 0) + } + + var i = byteLength - 1 + var mul = 1 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + this[offset + i] = (value / mul) & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0) + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset + 3] = (value >>> 24) + this[offset + 2] = (value >>> 16) + this[offset + 1] = (value >>> 8) + this[offset] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0) + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = 0 + var mul = 1 + var sub = 0 + this[offset] = value & 0xFF + while (++i < byteLength && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + var limit = Math.pow(2, (8 * byteLength) - 1) + + checkInt(this, value, offset, byteLength, limit - 1, -limit) + } + + var i = byteLength - 1 + var mul = 1 + var sub = 0 + this[offset + i] = value & 0xFF + while (--i >= 0 && (mul *= 0x100)) { + if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) { + sub = 1 + } + this[offset + i] = ((value / mul) >> 0) - sub & 0xFF + } + + return offset + byteLength +} + +Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80) + if (value < 0) value = 0xff + value + 1 + this[offset] = (value & 0xff) + return offset + 1 +} + +Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + return offset + 2 +} + +Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000) + this[offset] = (value >>> 8) + this[offset + 1] = (value & 0xff) + return offset + 2 +} + +Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + this[offset] = (value & 0xff) + this[offset + 1] = (value >>> 8) + this[offset + 2] = (value >>> 16) + this[offset + 3] = (value >>> 24) + return offset + 4 +} + +Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000) + if (value < 0) value = 0xffffffff + value + 1 + this[offset] = (value >>> 24) + this[offset + 1] = (value >>> 16) + this[offset + 2] = (value >>> 8) + this[offset + 3] = (value & 0xff) + return offset + 4 +} + +function checkIEEE754 (buf, value, offset, ext, max, min) { + if (offset + ext > buf.length) throw new RangeError('Index out of range') + if (offset < 0) throw new RangeError('Index out of range') +} + +function writeFloat (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38) + } + ieee754.write(buf, value, offset, littleEndian, 23, 4) + return offset + 4 +} + +Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) { + return writeFloat(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) { + return writeFloat(this, value, offset, false, noAssert) +} + +function writeDouble (buf, value, offset, littleEndian, noAssert) { + value = +value + offset = offset >>> 0 + if (!noAssert) { + checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308) + } + ieee754.write(buf, value, offset, littleEndian, 52, 8) + return offset + 8 +} + +Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) { + return writeDouble(this, value, offset, true, noAssert) +} + +Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) { + return writeDouble(this, value, offset, false, noAssert) +} + +// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length) +Buffer.prototype.copy = function copy (target, targetStart, start, end) { + if (!start) start = 0 + if (!end && end !== 0) end = this.length + if (targetStart >= target.length) targetStart = target.length + if (!targetStart) targetStart = 0 + if (end > 0 && end < start) end = start + + // Copy 0 bytes; we're done + if (end === start) return 0 + if (target.length === 0 || this.length === 0) return 0 + + // Fatal error conditions + if (targetStart < 0) { + throw new RangeError('targetStart out of bounds') + } + if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds') + if (end < 0) throw new RangeError('sourceEnd out of bounds') + + // Are we oob? + if (end > this.length) end = this.length + if (target.length - targetStart < end - start) { + end = target.length - targetStart + start + } + + var len = end - start + var i + + if (this === target && start < targetStart && targetStart < end) { + // descending copy from end + for (i = len - 1; i >= 0; --i) { + target[i + targetStart] = this[i + start] + } + } else if (len < 1000) { + // ascending copy from start + for (i = 0; i < len; ++i) { + target[i + targetStart] = this[i + start] + } + } else { + Uint8Array.prototype.set.call( + target, + this.subarray(start, start + len), + targetStart + ) + } + + return len +} + +// Usage: +// buffer.fill(number[, offset[, end]]) +// buffer.fill(buffer[, offset[, end]]) +// buffer.fill(string[, offset[, end]][, encoding]) +Buffer.prototype.fill = function fill (val, start, end, encoding) { + // Handle string cases: + if (typeof val === 'string') { + if (typeof start === 'string') { + encoding = start + start = 0 + end = this.length + } else if (typeof end === 'string') { + encoding = end + end = this.length + } + if (val.length === 1) { + var code = val.charCodeAt(0) + if (code < 256) { + val = code + } + } + if (encoding !== undefined && typeof encoding !== 'string') { + throw new TypeError('encoding must be a string') + } + if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) { + throw new TypeError('Unknown encoding: ' + encoding) + } + } else if (typeof val === 'number') { + val = val & 255 + } + + // Invalid ranges are not set to a default, so can range check early. + if (start < 0 || this.length < start || this.length < end) { + throw new RangeError('Out of range index') + } + + if (end <= start) { + return this + } + + start = start >>> 0 + end = end === undefined ? this.length : end >>> 0 + + if (!val) val = 0 + + var i + if (typeof val === 'number') { + for (i = start; i < end; ++i) { + this[i] = val + } + } else { + var bytes = Buffer.isBuffer(val) + ? val + : new Buffer(val, encoding) + var len = bytes.length + for (i = 0; i < end - start; ++i) { + this[i + start] = bytes[i % len] + } + } + + return this +} + +// HELPER FUNCTIONS +// ================ + +var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g + +function base64clean (str) { + // Node strips out invalid characters like \n and \t from the string, base64-js does not + str = str.trim().replace(INVALID_BASE64_RE, '') + // Node converts strings with length < 2 to '' + if (str.length < 2) return '' + // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not + while (str.length % 4 !== 0) { + str = str + '=' + } + return str +} + +function toHex (n) { + if (n < 16) return '0' + n.toString(16) + return n.toString(16) +} + +function utf8ToBytes (string, units) { + units = units || Infinity + var codePoint + var length = string.length + var leadSurrogate = null + var bytes = [] + + for (var i = 0; i < length; ++i) { + codePoint = string.charCodeAt(i) + + // is surrogate component + if (codePoint > 0xD7FF && codePoint < 0xE000) { + // last char was a lead + if (!leadSurrogate) { + // no lead yet + if (codePoint > 0xDBFF) { + // unexpected trail + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } else if (i + 1 === length) { + // unpaired lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + continue + } + + // valid lead + leadSurrogate = codePoint + + continue + } + + // 2 leads in a row + if (codePoint < 0xDC00) { + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + leadSurrogate = codePoint + continue + } + + // valid surrogate pair + codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000 + } else if (leadSurrogate) { + // valid bmp char, but last char was a lead + if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD) + } + + leadSurrogate = null + + // encode utf8 + if (codePoint < 0x80) { + if ((units -= 1) < 0) break + bytes.push(codePoint) + } else if (codePoint < 0x800) { + if ((units -= 2) < 0) break + bytes.push( + codePoint >> 0x6 | 0xC0, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x10000) { + if ((units -= 3) < 0) break + bytes.push( + codePoint >> 0xC | 0xE0, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else if (codePoint < 0x110000) { + if ((units -= 4) < 0) break + bytes.push( + codePoint >> 0x12 | 0xF0, + codePoint >> 0xC & 0x3F | 0x80, + codePoint >> 0x6 & 0x3F | 0x80, + codePoint & 0x3F | 0x80 + ) + } else { + throw new Error('Invalid code point') + } + } + + return bytes +} + +function asciiToBytes (str) { + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + // Node's code seems to be doing this and not & 0x7F.. + byteArray.push(str.charCodeAt(i) & 0xFF) + } + return byteArray +} + +function utf16leToBytes (str, units) { + var c, hi, lo + var byteArray = [] + for (var i = 0; i < str.length; ++i) { + if ((units -= 2) < 0) break + + c = str.charCodeAt(i) + hi = c >> 8 + lo = c % 256 + byteArray.push(lo) + byteArray.push(hi) + } + + return byteArray +} + +function base64ToBytes (str) { + return base64.toByteArray(base64clean(str)) +} + +function blitBuffer (src, dst, offset, length) { + for (var i = 0; i < length; ++i) { + if ((i + offset >= dst.length) || (i >= src.length)) break + dst[i + offset] = src[i] + } + return i +} + +// ArrayBuffers from another context (i.e. an iframe) do not pass the `instanceof` check +// but they should be treated as valid. See: https://github.com/feross/buffer/issues/166 +function isArrayBuffer (obj) { + return obj instanceof ArrayBuffer || + (obj != null && obj.constructor != null && obj.constructor.name === 'ArrayBuffer' && + typeof obj.byteLength === 'number') +} + +// Node 0.10 supports `ArrayBuffer` but lacks `ArrayBuffer.isView` +function isArrayBufferView (obj) { + return (typeof ArrayBuffer.isView === 'function') && ArrayBuffer.isView(obj) +} + +function numberIsNaN (obj) { + return obj !== obj // eslint-disable-line no-self-compare +} + +},{"base64-js":1,"ieee754":60}],48:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var objectCreate = Object.create || objectCreatePolyfill +var objectKeys = Object.keys || objectKeysPolyfill +var bind = Function.prototype.bind || functionBindPolyfill + +function EventEmitter() { + if (!this._events || !Object.prototype.hasOwnProperty.call(this, '_events')) { + this._events = objectCreate(null); + this._eventsCount = 0; + } + + this._maxListeners = this._maxListeners || undefined; +} +module.exports = EventEmitter; + +// Backwards-compat with node 0.10.x +EventEmitter.EventEmitter = EventEmitter; + +EventEmitter.prototype._events = undefined; +EventEmitter.prototype._maxListeners = undefined; + +// By default EventEmitters will print a warning if more than 10 listeners are +// added to it. This is a useful default which helps finding memory leaks. +var defaultMaxListeners = 10; + +var hasDefineProperty; +try { + var o = {}; + if (Object.defineProperty) Object.defineProperty(o, 'x', { value: 0 }); + hasDefineProperty = o.x === 0; +} catch (err) { hasDefineProperty = false } +if (hasDefineProperty) { + Object.defineProperty(EventEmitter, 'defaultMaxListeners', { + enumerable: true, + get: function() { + return defaultMaxListeners; + }, + set: function(arg) { + // check whether the input is a positive number (whose value is zero or + // greater and not a NaN). + if (typeof arg !== 'number' || arg < 0 || arg !== arg) + throw new TypeError('"defaultMaxListeners" must be a positive number'); + defaultMaxListeners = arg; + } + }); +} else { + EventEmitter.defaultMaxListeners = defaultMaxListeners; +} + +// Obviously not all Emitters should be limited to 10. This function allows +// that to be increased. Set to zero for unlimited. +EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) { + if (typeof n !== 'number' || n < 0 || isNaN(n)) + throw new TypeError('"n" argument must be a positive number'); + this._maxListeners = n; + return this; +}; + +function $getMaxListeners(that) { + if (that._maxListeners === undefined) + return EventEmitter.defaultMaxListeners; + return that._maxListeners; +} + +EventEmitter.prototype.getMaxListeners = function getMaxListeners() { + return $getMaxListeners(this); +}; + +// These standalone emit* functions are used to optimize calling of event +// handlers for fast cases because emit() itself often has a variable number of +// arguments and can be deoptimized because of that. These functions always have +// the same number of arguments and thus do not get deoptimized, so the code +// inside them can execute faster. +function emitNone(handler, isFn, self) { + if (isFn) + handler.call(self); + else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + listeners[i].call(self); + } +} +function emitOne(handler, isFn, self, arg1) { + if (isFn) + handler.call(self, arg1); + else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + listeners[i].call(self, arg1); + } +} +function emitTwo(handler, isFn, self, arg1, arg2) { + if (isFn) + handler.call(self, arg1, arg2); + else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + listeners[i].call(self, arg1, arg2); + } +} +function emitThree(handler, isFn, self, arg1, arg2, arg3) { + if (isFn) + handler.call(self, arg1, arg2, arg3); + else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + listeners[i].call(self, arg1, arg2, arg3); + } +} + +function emitMany(handler, isFn, self, args) { + if (isFn) + handler.apply(self, args); + else { + var len = handler.length; + var listeners = arrayClone(handler, len); + for (var i = 0; i < len; ++i) + listeners[i].apply(self, args); + } +} + +EventEmitter.prototype.emit = function emit(type) { + var er, handler, len, args, i, events; + var doError = (type === 'error'); + + events = this._events; + if (events) + doError = (doError && events.error == null); + else if (!doError) + return false; + + // If there is no 'error' event listener then throw. + if (doError) { + if (arguments.length > 1) + er = arguments[1]; + if (er instanceof Error) { + throw er; // Unhandled 'error' event + } else { + // At least give some kind of context to the user + var err = new Error('Unhandled "error" event. (' + er + ')'); + err.context = er; + throw err; + } + return false; + } + + handler = events[type]; + + if (!handler) + return false; + + var isFn = typeof handler === 'function'; + len = arguments.length; + switch (len) { + // fast cases + case 1: + emitNone(handler, isFn, this); + break; + case 2: + emitOne(handler, isFn, this, arguments[1]); + break; + case 3: + emitTwo(handler, isFn, this, arguments[1], arguments[2]); + break; + case 4: + emitThree(handler, isFn, this, arguments[1], arguments[2], arguments[3]); + break; + // slower + default: + args = new Array(len - 1); + for (i = 1; i < len; i++) + args[i - 1] = arguments[i]; + emitMany(handler, isFn, this, args); + } + + return true; +}; + +function _addListener(target, type, listener, prepend) { + var m; + var events; + var existing; + + if (typeof listener !== 'function') + throw new TypeError('"listener" argument must be a function'); + + events = target._events; + if (!events) { + events = target._events = objectCreate(null); + target._eventsCount = 0; + } else { + // To avoid recursion in the case that type === "newListener"! Before + // adding it to the listeners, first emit "newListener". + if (events.newListener) { + target.emit('newListener', type, + listener.listener ? listener.listener : listener); + + // Re-assign `events` because a newListener handler could have caused the + // this._events to be assigned to a new object + events = target._events; + } + existing = events[type]; + } + + if (!existing) { + // Optimize the case of one listener. Don't need the extra array object. + existing = events[type] = listener; + ++target._eventsCount; + } else { + if (typeof existing === 'function') { + // Adding the second element, need to change to array. + existing = events[type] = + prepend ? [listener, existing] : [existing, listener]; + } else { + // If we've already got an array, just append. + if (prepend) { + existing.unshift(listener); + } else { + existing.push(listener); + } + } + + // Check for listener leak + if (!existing.warned) { + m = $getMaxListeners(target); + if (m && m > 0 && existing.length > m) { + existing.warned = true; + var w = new Error('Possible EventEmitter memory leak detected. ' + + existing.length + ' "' + String(type) + '" listeners ' + + 'added. Use emitter.setMaxListeners() to ' + + 'increase limit.'); + w.name = 'MaxListenersExceededWarning'; + w.emitter = target; + w.type = type; + w.count = existing.length; + if (typeof console === 'object' && console.warn) { + console.warn('%s: %s', w.name, w.message); + } + } + } + } + + return target; +} + +EventEmitter.prototype.addListener = function addListener(type, listener) { + return _addListener(this, type, listener, false); +}; + +EventEmitter.prototype.on = EventEmitter.prototype.addListener; + +EventEmitter.prototype.prependListener = + function prependListener(type, listener) { + return _addListener(this, type, listener, true); + }; + +function onceWrapper() { + if (!this.fired) { + this.target.removeListener(this.type, this.wrapFn); + this.fired = true; + switch (arguments.length) { + case 0: + return this.listener.call(this.target); + case 1: + return this.listener.call(this.target, arguments[0]); + case 2: + return this.listener.call(this.target, arguments[0], arguments[1]); + case 3: + return this.listener.call(this.target, arguments[0], arguments[1], + arguments[2]); + default: + var args = new Array(arguments.length); + for (var i = 0; i < args.length; ++i) + args[i] = arguments[i]; + this.listener.apply(this.target, args); + } + } +} + +function _onceWrap(target, type, listener) { + var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener }; + var wrapped = bind.call(onceWrapper, state); + wrapped.listener = listener; + state.wrapFn = wrapped; + return wrapped; +} + +EventEmitter.prototype.once = function once(type, listener) { + if (typeof listener !== 'function') + throw new TypeError('"listener" argument must be a function'); + this.on(type, _onceWrap(this, type, listener)); + return this; +}; + +EventEmitter.prototype.prependOnceListener = + function prependOnceListener(type, listener) { + if (typeof listener !== 'function') + throw new TypeError('"listener" argument must be a function'); + this.prependListener(type, _onceWrap(this, type, listener)); + return this; + }; + +// Emits a 'removeListener' event if and only if the listener was removed. +EventEmitter.prototype.removeListener = + function removeListener(type, listener) { + var list, events, position, i, originalListener; + + if (typeof listener !== 'function') + throw new TypeError('"listener" argument must be a function'); + + events = this._events; + if (!events) + return this; + + list = events[type]; + if (!list) + return this; + + if (list === listener || list.listener === listener) { + if (--this._eventsCount === 0) + this._events = objectCreate(null); + else { + delete events[type]; + if (events.removeListener) + this.emit('removeListener', type, list.listener || listener); + } + } else if (typeof list !== 'function') { + position = -1; + + for (i = list.length - 1; i >= 0; i--) { + if (list[i] === listener || list[i].listener === listener) { + originalListener = list[i].listener; + position = i; + break; + } + } + + if (position < 0) + return this; + + if (position === 0) + list.shift(); + else + spliceOne(list, position); + + if (list.length === 1) + events[type] = list[0]; + + if (events.removeListener) + this.emit('removeListener', type, originalListener || listener); + } + + return this; + }; + +EventEmitter.prototype.removeAllListeners = + function removeAllListeners(type) { + var listeners, events, i; + + events = this._events; + if (!events) + return this; + + // not listening for removeListener, no need to emit + if (!events.removeListener) { + if (arguments.length === 0) { + this._events = objectCreate(null); + this._eventsCount = 0; + } else if (events[type]) { + if (--this._eventsCount === 0) + this._events = objectCreate(null); + else + delete events[type]; + } + return this; + } + + // emit removeListener for all listeners on all events + if (arguments.length === 0) { + var keys = objectKeys(events); + var key; + for (i = 0; i < keys.length; ++i) { + key = keys[i]; + if (key === 'removeListener') continue; + this.removeAllListeners(key); + } + this.removeAllListeners('removeListener'); + this._events = objectCreate(null); + this._eventsCount = 0; + return this; + } + + listeners = events[type]; + + if (typeof listeners === 'function') { + this.removeListener(type, listeners); + } else if (listeners) { + // LIFO order + for (i = listeners.length - 1; i >= 0; i--) { + this.removeListener(type, listeners[i]); + } + } + + return this; + }; + +function _listeners(target, type, unwrap) { + var events = target._events; + + if (!events) + return []; + + var evlistener = events[type]; + if (!evlistener) + return []; + + if (typeof evlistener === 'function') + return unwrap ? [evlistener.listener || evlistener] : [evlistener]; + + return unwrap ? unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length); +} + +EventEmitter.prototype.listeners = function listeners(type) { + return _listeners(this, type, true); +}; + +EventEmitter.prototype.rawListeners = function rawListeners(type) { + return _listeners(this, type, false); +}; + +EventEmitter.listenerCount = function(emitter, type) { + if (typeof emitter.listenerCount === 'function') { + return emitter.listenerCount(type); + } else { + return listenerCount.call(emitter, type); + } +}; + +EventEmitter.prototype.listenerCount = listenerCount; +function listenerCount(type) { + var events = this._events; + + if (events) { + var evlistener = events[type]; + + if (typeof evlistener === 'function') { + return 1; + } else if (evlistener) { + return evlistener.length; + } + } + + return 0; +} + +EventEmitter.prototype.eventNames = function eventNames() { + return this._eventsCount > 0 ? Reflect.ownKeys(this._events) : []; +}; + +// About 1.5x faster than the two-arg version of Array#splice(). +function spliceOne(list, index) { + for (var i = index, k = i + 1, n = list.length; k < n; i += 1, k += 1) + list[i] = list[k]; + list.pop(); +} + +function arrayClone(arr, n) { + var copy = new Array(n); + for (var i = 0; i < n; ++i) + copy[i] = arr[i]; + return copy; +} + +function unwrapListeners(arr) { + var ret = new Array(arr.length); + for (var i = 0; i < ret.length; ++i) { + ret[i] = arr[i].listener || arr[i]; + } + return ret; +} + +function objectCreatePolyfill(proto) { + var F = function() {}; + F.prototype = proto; + return new F; +} +function objectKeysPolyfill(obj) { + var keys = []; + for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k)) { + keys.push(k); + } + return k; +} +function functionBindPolyfill(context) { + var fn = this; + return function () { + return fn.apply(context, arguments); + }; +} + +},{}],49:[function(require,module,exports){ +'use strict'; + + +var TYPED_OK = (typeof Uint8Array !== 'undefined') && + (typeof Uint16Array !== 'undefined') && + (typeof Int32Array !== 'undefined'); + +function _has(obj, key) { + return Object.prototype.hasOwnProperty.call(obj, key); +} + +exports.assign = function (obj /*from1, from2, from3, ...*/) { + var sources = Array.prototype.slice.call(arguments, 1); + while (sources.length) { + var source = sources.shift(); + if (!source) { continue; } + + if (typeof source !== 'object') { + throw new TypeError(source + 'must be non-object'); + } + + for (var p in source) { + if (_has(source, p)) { + obj[p] = source[p]; + } + } + } + + return obj; }; -// write decodes the given buffer and returns it as JS string that is -// guaranteed to not contain any partial multi-byte characters. Any partial -// character found at the end of the buffer is buffered up, and will be -// returned when calling write again with the remaining bytes. -// -// Note: Converting a Buffer containing an orphan surrogate to a String -// currently works, but converting a String to a Buffer (via `new Buffer`, or -// Buffer#write) will replace incomplete surrogates with the unicode -// replacement character. See https://codereview.chromium.org/121173009/ . -StringDecoder.prototype.write = function(buffer) { - var charStr = ''; - // if our last write ended with an incomplete multibyte character - while (this.charLength) { - // determine how many remaining bytes this buffer has to offer for this char - var available = (buffer.length >= this.charLength - this.charReceived) ? - this.charLength - this.charReceived : - buffer.length; +// reduce buffer size, avoiding mem copy +exports.shrinkBuf = function (buf, size) { + if (buf.length === size) { return buf; } + if (buf.subarray) { return buf.subarray(0, size); } + buf.length = size; + return buf; +}; - // add the new bytes to the char buffer - buffer.copy(this.charBuffer, this.charReceived, 0, available); - this.charReceived += available; - if (this.charReceived < this.charLength) { - // still not enough chars in this buffer? wait for more ... - return ''; +var fnTyped = { + arraySet: function (dest, src, src_offs, len, dest_offs) { + if (src.subarray && dest.subarray) { + dest.set(src.subarray(src_offs, src_offs + len), dest_offs); + return; + } + // Fallback to ordinary array + for (var i = 0; i < len; i++) { + dest[dest_offs + i] = src[src_offs + i]; + } + }, + // Join array of chunks to single array. + flattenChunks: function (chunks) { + var i, l, len, pos, chunk, result; + + // calculate data length + len = 0; + for (i = 0, l = chunks.length; i < l; i++) { + len += chunks[i].length; } - // remove bytes belonging to the current character from the buffer - buffer = buffer.slice(available, buffer.length); + // join chunks + result = new Uint8Array(len); + pos = 0; + for (i = 0, l = chunks.length; i < l; i++) { + chunk = chunks[i]; + result.set(chunk, pos); + pos += chunk.length; + } - // get the character that was split - charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); + return result; + } +}; - // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character - var charCode = charStr.charCodeAt(charStr.length - 1); - if (charCode >= 0xD800 && charCode <= 0xDBFF) { - this.charLength += this.surrogateSize; - charStr = ''; +var fnUntyped = { + arraySet: function (dest, src, src_offs, len, dest_offs) { + for (var i = 0; i < len; i++) { + dest[dest_offs + i] = src[src_offs + i]; + } + }, + // Join array of chunks to single array. + flattenChunks: function (chunks) { + return [].concat.apply([], chunks); + } +}; + + +// Enable/Disable typed arrays use, for testing +// +exports.setTyped = function (on) { + if (on) { + exports.Buf8 = Uint8Array; + exports.Buf16 = Uint16Array; + exports.Buf32 = Int32Array; + exports.assign(exports, fnTyped); + } else { + exports.Buf8 = Array; + exports.Buf16 = Array; + exports.Buf32 = Array; + exports.assign(exports, fnUntyped); + } +}; + +exports.setTyped(TYPED_OK); + +},{}],50:[function(require,module,exports){ +'use strict'; + +// Note: adler32 takes 12% for level 0 and 2% for level 6. +// It isn't worth it to make additional optimizations as in original. +// Small size is preferable. + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +function adler32(adler, buf, len, pos) { + var s1 = (adler & 0xffff) |0, + s2 = ((adler >>> 16) & 0xffff) |0, + n = 0; + + while (len !== 0) { + // Set limit ~ twice less than 5552, to keep + // s2 in 31-bits, because we force signed ints. + // in other case %= will fail. + n = len > 2000 ? 2000 : len; + len -= n; + + do { + s1 = (s1 + buf[pos++]) |0; + s2 = (s2 + s1) |0; + } while (--n); + + s1 %= 65521; + s2 %= 65521; + } + + return (s1 | (s2 << 16)) |0; +} + + +module.exports = adler32; + +},{}],51:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +module.exports = { + + /* Allowed flush values; see deflate() and inflate() below for details */ + Z_NO_FLUSH: 0, + Z_PARTIAL_FLUSH: 1, + Z_SYNC_FLUSH: 2, + Z_FULL_FLUSH: 3, + Z_FINISH: 4, + Z_BLOCK: 5, + Z_TREES: 6, + + /* Return codes for the compression/decompression functions. Negative values + * are errors, positive values are used for special but normal events. + */ + Z_OK: 0, + Z_STREAM_END: 1, + Z_NEED_DICT: 2, + Z_ERRNO: -1, + Z_STREAM_ERROR: -2, + Z_DATA_ERROR: -3, + //Z_MEM_ERROR: -4, + Z_BUF_ERROR: -5, + //Z_VERSION_ERROR: -6, + + /* compression levels */ + Z_NO_COMPRESSION: 0, + Z_BEST_SPEED: 1, + Z_BEST_COMPRESSION: 9, + Z_DEFAULT_COMPRESSION: -1, + + + Z_FILTERED: 1, + Z_HUFFMAN_ONLY: 2, + Z_RLE: 3, + Z_FIXED: 4, + Z_DEFAULT_STRATEGY: 0, + + /* Possible values of the data_type field (though see inflate()) */ + Z_BINARY: 0, + Z_TEXT: 1, + //Z_ASCII: 1, // = Z_TEXT (deprecated) + Z_UNKNOWN: 2, + + /* The deflate compression method */ + Z_DEFLATED: 8 + //Z_NULL: null // Use -1 or null inline, depending on var type +}; + +},{}],52:[function(require,module,exports){ +'use strict'; + +// Note: we can't get significant speed boost here. +// So write code to minimize size - no pregenerated tables +// and array tools dependencies. + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +// Use ordinary array, since untyped makes no boost here +function makeTable() { + var c, table = []; + + for (var n = 0; n < 256; n++) { + c = n; + for (var k = 0; k < 8; k++) { + c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1)); + } + table[n] = c; + } + + return table; +} + +// Create table on load. Just 255 signed longs. Not a problem. +var crcTable = makeTable(); + + +function crc32(crc, buf, len, pos) { + var t = crcTable, + end = pos + len; + + crc ^= -1; + + for (var i = pos; i < end; i++) { + crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF]; + } + + return (crc ^ (-1)); // >>> 0; +} + + +module.exports = crc32; + +},{}],53:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +var utils = require('../utils/common'); +var trees = require('./trees'); +var adler32 = require('./adler32'); +var crc32 = require('./crc32'); +var msg = require('./messages'); + +/* Public constants ==========================================================*/ +/* ===========================================================================*/ + + +/* Allowed flush values; see deflate() and inflate() below for details */ +var Z_NO_FLUSH = 0; +var Z_PARTIAL_FLUSH = 1; +//var Z_SYNC_FLUSH = 2; +var Z_FULL_FLUSH = 3; +var Z_FINISH = 4; +var Z_BLOCK = 5; +//var Z_TREES = 6; + + +/* Return codes for the compression/decompression functions. Negative values + * are errors, positive values are used for special but normal events. + */ +var Z_OK = 0; +var Z_STREAM_END = 1; +//var Z_NEED_DICT = 2; +//var Z_ERRNO = -1; +var Z_STREAM_ERROR = -2; +var Z_DATA_ERROR = -3; +//var Z_MEM_ERROR = -4; +var Z_BUF_ERROR = -5; +//var Z_VERSION_ERROR = -6; + + +/* compression levels */ +//var Z_NO_COMPRESSION = 0; +//var Z_BEST_SPEED = 1; +//var Z_BEST_COMPRESSION = 9; +var Z_DEFAULT_COMPRESSION = -1; + + +var Z_FILTERED = 1; +var Z_HUFFMAN_ONLY = 2; +var Z_RLE = 3; +var Z_FIXED = 4; +var Z_DEFAULT_STRATEGY = 0; + +/* Possible values of the data_type field (though see inflate()) */ +//var Z_BINARY = 0; +//var Z_TEXT = 1; +//var Z_ASCII = 1; // = Z_TEXT +var Z_UNKNOWN = 2; + + +/* The deflate compression method */ +var Z_DEFLATED = 8; + +/*============================================================================*/ + + +var MAX_MEM_LEVEL = 9; +/* Maximum value for memLevel in deflateInit2 */ +var MAX_WBITS = 15; +/* 32K LZ77 window */ +var DEF_MEM_LEVEL = 8; + + +var LENGTH_CODES = 29; +/* number of length codes, not counting the special END_BLOCK code */ +var LITERALS = 256; +/* number of literal bytes 0..255 */ +var L_CODES = LITERALS + 1 + LENGTH_CODES; +/* number of Literal or Length codes, including the END_BLOCK code */ +var D_CODES = 30; +/* number of distance codes */ +var BL_CODES = 19; +/* number of codes used to transfer the bit lengths */ +var HEAP_SIZE = 2 * L_CODES + 1; +/* maximum heap size */ +var MAX_BITS = 15; +/* All codes must not exceed MAX_BITS bits */ + +var MIN_MATCH = 3; +var MAX_MATCH = 258; +var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1); + +var PRESET_DICT = 0x20; + +var INIT_STATE = 42; +var EXTRA_STATE = 69; +var NAME_STATE = 73; +var COMMENT_STATE = 91; +var HCRC_STATE = 103; +var BUSY_STATE = 113; +var FINISH_STATE = 666; + +var BS_NEED_MORE = 1; /* block not completed, need more input or more output */ +var BS_BLOCK_DONE = 2; /* block flush performed */ +var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */ +var BS_FINISH_DONE = 4; /* finish done, accept no more input or output */ + +var OS_CODE = 0x03; // Unix :) . Don't detect, use this default. + +function err(strm, errorCode) { + strm.msg = msg[errorCode]; + return errorCode; +} + +function rank(f) { + return ((f) << 1) - ((f) > 4 ? 9 : 0); +} + +function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } } + + +/* ========================================================================= + * Flush as much pending output as possible. All deflate() output goes + * through this function so some applications may wish to modify it + * to avoid allocating a large strm->output buffer and copying into it. + * (See also read_buf()). + */ +function flush_pending(strm) { + var s = strm.state; + + //_tr_flush_bits(s); + var len = s.pending; + if (len > strm.avail_out) { + len = strm.avail_out; + } + if (len === 0) { return; } + + utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out); + strm.next_out += len; + s.pending_out += len; + strm.total_out += len; + strm.avail_out -= len; + s.pending -= len; + if (s.pending === 0) { + s.pending_out = 0; + } +} + + +function flush_block_only(s, last) { + trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last); + s.block_start = s.strstart; + flush_pending(s.strm); +} + + +function put_byte(s, b) { + s.pending_buf[s.pending++] = b; +} + + +/* ========================================================================= + * Put a short in the pending buffer. The 16-bit value is put in MSB order. + * IN assertion: the stream state is correct and there is enough room in + * pending_buf. + */ +function putShortMSB(s, b) { +// put_byte(s, (Byte)(b >> 8)); +// put_byte(s, (Byte)(b & 0xff)); + s.pending_buf[s.pending++] = (b >>> 8) & 0xff; + s.pending_buf[s.pending++] = b & 0xff; +} + + +/* =========================================================================== + * Read a new buffer from the current input stream, update the adler32 + * and total number of bytes read. All deflate() input goes through + * this function so some applications may wish to modify it to avoid + * allocating a large strm->input buffer and copying from it. + * (See also flush_pending()). + */ +function read_buf(strm, buf, start, size) { + var len = strm.avail_in; + + if (len > size) { len = size; } + if (len === 0) { return 0; } + + strm.avail_in -= len; + + // zmemcpy(buf, strm->next_in, len); + utils.arraySet(buf, strm.input, strm.next_in, len, start); + if (strm.state.wrap === 1) { + strm.adler = adler32(strm.adler, buf, len, start); + } + + else if (strm.state.wrap === 2) { + strm.adler = crc32(strm.adler, buf, len, start); + } + + strm.next_in += len; + strm.total_in += len; + + return len; +} + + +/* =========================================================================== + * Set match_start to the longest match starting at the given string and + * return its length. Matches shorter or equal to prev_length are discarded, + * in which case the result is equal to prev_length and match_start is + * garbage. + * IN assertions: cur_match is the head of the hash chain for the current + * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 + * OUT assertion: the match length is not greater than s->lookahead. + */ +function longest_match(s, cur_match) { + var chain_length = s.max_chain_length; /* max hash chain length */ + var scan = s.strstart; /* current string */ + var match; /* matched string */ + var len; /* length of current match */ + var best_len = s.prev_length; /* best match length so far */ + var nice_match = s.nice_match; /* stop if match long enough */ + var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ? + s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/; + + var _win = s.window; // shortcut + + var wmask = s.w_mask; + var prev = s.prev; + + /* Stop when cur_match becomes <= limit. To simplify the code, + * we prevent matches with the string of window index 0. + */ + + var strend = s.strstart + MAX_MATCH; + var scan_end1 = _win[scan + best_len - 1]; + var scan_end = _win[scan + best_len]; + + /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. + * It is easy to get rid of this optimization if necessary. + */ + // Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); + + /* Do not waste too much time if we already have a good match: */ + if (s.prev_length >= s.good_match) { + chain_length >>= 2; + } + /* Do not look for matches beyond the end of the input. This is necessary + * to make deflate deterministic. + */ + if (nice_match > s.lookahead) { nice_match = s.lookahead; } + + // Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); + + do { + // Assert(cur_match < s->strstart, "no future"); + match = cur_match; + + /* Skip to next match if the match length cannot increase + * or if the match length is less than 2. Note that the checks below + * for insufficient lookahead only occur occasionally for performance + * reasons. Therefore uninitialized memory will be accessed, and + * conditional jumps will be made that depend on those values. + * However the length of the match is limited to the lookahead, so + * the output of deflate is not affected by the uninitialized values. + */ + + if (_win[match + best_len] !== scan_end || + _win[match + best_len - 1] !== scan_end1 || + _win[match] !== _win[scan] || + _win[++match] !== _win[scan + 1]) { continue; } - this.charReceived = this.charLength = 0; - // if there are no more bytes in this buffer, just emit our char - if (buffer.length === 0) { - return charStr; + /* The check at best_len-1 can be removed because it will be made + * again later. (This heuristic is not always a win.) + * It is not necessary to compare scan[2] and match[2] since they + * are always equal when the other bytes match, given that + * the hash keys are equal and that HASH_BITS >= 8. + */ + scan += 2; + match++; + // Assert(*scan == *match, "match[2]?"); + + /* We check for insufficient lookahead only every 8th comparison; + * the 256th check will be made at strstart+258. + */ + do { + /*jshint noempty:false*/ + } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] && + _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && + _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && + _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && + scan < strend); + + // Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); + + len = MAX_MATCH - (strend - scan); + scan = strend - MAX_MATCH; + + if (len > best_len) { + s.match_start = cur_match; + best_len = len; + if (len >= nice_match) { + break; + } + scan_end1 = _win[scan + best_len - 1]; + scan_end = _win[scan + best_len]; } - break; + } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0); + + if (best_len <= s.lookahead) { + return best_len; } + return s.lookahead; +} - // determine and set charLength / charReceived - this.detectIncompleteChar(buffer); - var end = buffer.length; - if (this.charLength) { - // buffer the incomplete character bytes we got - buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end); - end -= this.charReceived; - } +/* =========================================================================== + * Fill the window when the lookahead becomes insufficient. + * Updates strstart and lookahead. + * + * IN assertion: lookahead < MIN_LOOKAHEAD + * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD + * At least one byte has been read, or avail_in == 0; reads are + * performed for at least two bytes (required for the zip translate_eol + * option -- not supported here). + */ +function fill_window(s) { + var _w_size = s.w_size; + var p, n, m, more, str; - charStr += buffer.toString(this.encoding, 0, end); + //Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead"); - var end = charStr.length - 1; - var charCode = charStr.charCodeAt(end); - // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character - if (charCode >= 0xD800 && charCode <= 0xDBFF) { - var size = this.surrogateSize; - this.charLength += size; - this.charReceived += size; - this.charBuffer.copy(this.charBuffer, size, 0, size); - buffer.copy(this.charBuffer, 0, 0, size); - return charStr.substring(0, end); - } + do { + more = s.window_size - s.lookahead - s.strstart; - // or just emit the charStr - return charStr; -}; + // JS ints have 32 bit, block below not needed + /* Deal with !@#$% 64K limit: */ + //if (sizeof(int) <= 2) { + // if (more == 0 && s->strstart == 0 && s->lookahead == 0) { + // more = wsize; + // + // } else if (more == (unsigned)(-1)) { + // /* Very unlikely, but possible on 16 bit machine if + // * strstart == 0 && lookahead == 1 (input done a byte at time) + // */ + // more--; + // } + //} -// detectIncompleteChar determines if there is an incomplete UTF-8 character at -// the end of the given buffer. If so, it sets this.charLength to the byte -// length that character, and sets this.charReceived to the number of bytes -// that are available for this character. -StringDecoder.prototype.detectIncompleteChar = function(buffer) { - // determine how many bytes we have to check at the end of this buffer - var i = (buffer.length >= 3) ? 3 : buffer.length; - // Figure out if one of the last i bytes of our buffer announces an - // incomplete char. - for (; i > 0; i--) { - var c = buffer[buffer.length - i]; + /* If the window is almost full and there is insufficient lookahead, + * move the upper half to the lower one to make room in the upper half. + */ + if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) { - // See http://en.wikipedia.org/wiki/UTF-8#Description + utils.arraySet(s.window, s.window, _w_size, _w_size, 0); + s.match_start -= _w_size; + s.strstart -= _w_size; + /* we now have strstart >= MAX_DIST */ + s.block_start -= _w_size; - // 110XXXXX - if (i == 1 && c >> 5 == 0x06) { - this.charLength = 2; + /* Slide the hash table (could be avoided with 32 bit values + at the expense of memory usage). We slide even when level == 0 + to keep the hash table consistent if we switch back to level > 0 + later. (Using level 0 permanently is not an optimal usage of + zlib, so we don't care about this pathological case.) + */ + + n = s.hash_size; + p = n; + do { + m = s.head[--p]; + s.head[p] = (m >= _w_size ? m - _w_size : 0); + } while (--n); + + n = _w_size; + p = n; + do { + m = s.prev[--p]; + s.prev[p] = (m >= _w_size ? m - _w_size : 0); + /* If n is not on any hash chain, prev[n] is garbage but + * its value will never be used. + */ + } while (--n); + + more += _w_size; + } + if (s.strm.avail_in === 0) { break; } - // 1110XXXX - if (i <= 2 && c >> 4 == 0x0E) { - this.charLength = 3; - break; + /* If there was no sliding: + * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && + * more == window_size - lookahead - strstart + * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) + * => more >= window_size - 2*WSIZE + 2 + * In the BIG_MEM or MMAP case (not yet supported), + * window_size == input_size + MIN_LOOKAHEAD && + * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. + * Otherwise, window_size == 2*WSIZE so more >= 2. + * If there was sliding, more >= WSIZE. So in all cases, more >= 2. + */ + //Assert(more >= 2, "more < 2"); + n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more); + s.lookahead += n; + + /* Initialize the hash value now that we have some input: */ + if (s.lookahead + s.insert >= MIN_MATCH) { + str = s.strstart - s.insert; + s.ins_h = s.window[str]; + + /* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask; +//#if MIN_MATCH != 3 +// Call update_hash() MIN_MATCH-3 more times +//#endif + while (s.insert) { + /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask; + + s.prev[str & s.w_mask] = s.head[s.ins_h]; + s.head[s.ins_h] = str; + str++; + s.insert--; + if (s.lookahead + s.insert < MIN_MATCH) { + break; + } + } + } + /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, + * but this is not important since only literal bytes will be emitted. + */ + + } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0); + + /* If the WIN_INIT bytes after the end of the current data have never been + * written, then zero those bytes in order to avoid memory check reports of + * the use of uninitialized (or uninitialised as Julian writes) bytes by + * the longest match routines. Update the high water mark for the next + * time through here. WIN_INIT is set to MAX_MATCH since the longest match + * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead. + */ +// if (s.high_water < s.window_size) { +// var curr = s.strstart + s.lookahead; +// var init = 0; +// +// if (s.high_water < curr) { +// /* Previous high water mark below current data -- zero WIN_INIT +// * bytes or up to end of window, whichever is less. +// */ +// init = s.window_size - curr; +// if (init > WIN_INIT) +// init = WIN_INIT; +// zmemzero(s->window + curr, (unsigned)init); +// s->high_water = curr + init; +// } +// else if (s->high_water < (ulg)curr + WIN_INIT) { +// /* High water mark at or above current data, but below current data +// * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up +// * to end of window, whichever is less. +// */ +// init = (ulg)curr + WIN_INIT - s->high_water; +// if (init > s->window_size - s->high_water) +// init = s->window_size - s->high_water; +// zmemzero(s->window + s->high_water, (unsigned)init); +// s->high_water += init; +// } +// } +// +// Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD, +// "not enough room for search"); +} + +/* =========================================================================== + * Copy without compression as much as possible from the input stream, return + * the current block state. + * This function does not insert new strings in the dictionary since + * uncompressible data is probably not useful. This function is used + * only for the level=0 compression option. + * NOTE: this function should be optimized to avoid extra copying from + * window to pending_buf. + */ +function deflate_stored(s, flush) { + /* Stored blocks are limited to 0xffff bytes, pending_buf is limited + * to pending_buf_size, and each stored block has a 5 byte header: + */ + var max_block_size = 0xffff; + + if (max_block_size > s.pending_buf_size - 5) { + max_block_size = s.pending_buf_size - 5; + } + + /* Copy as much as possible from input to output: */ + for (;;) { + /* Fill the window as much as possible: */ + if (s.lookahead <= 1) { + + //Assert(s->strstart < s->w_size+MAX_DIST(s) || + // s->block_start >= (long)s->w_size, "slide too late"); +// if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) || +// s.block_start >= s.w_size)) { +// throw new Error("slide too late"); +// } + + fill_window(s); + if (s.lookahead === 0 && flush === Z_NO_FLUSH) { + return BS_NEED_MORE; + } + + if (s.lookahead === 0) { + break; + } + /* flush the current block */ + } + //Assert(s->block_start >= 0L, "block gone"); +// if (s.block_start < 0) throw new Error("block gone"); + + s.strstart += s.lookahead; + s.lookahead = 0; + + /* Emit a stored block if pending_buf will be full: */ + var max_start = s.block_start + max_block_size; + + if (s.strstart === 0 || s.strstart >= max_start) { + /* strstart == 0 is possible when wraparound on 16-bit machine */ + s.lookahead = s.strstart - max_start; + s.strstart = max_start; + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + + + } + /* Flush if we may have to slide, otherwise block_start may become + * negative and the data will be gone: + */ + if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + } + + s.insert = 0; + + if (flush === Z_FINISH) { + /*** FLUSH_BLOCK(s, 1); ***/ + flush_block_only(s, true); + if (s.strm.avail_out === 0) { + return BS_FINISH_STARTED; + } + /***/ + return BS_FINISH_DONE; + } + + if (s.strstart > s.block_start) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + + return BS_NEED_MORE; +} + +/* =========================================================================== + * Compress as much as possible from the input stream, return the current + * block state. + * This function does not perform lazy evaluation of matches and inserts + * new strings in the dictionary only for unmatched strings or for short + * matches. It is used only for the fast compression options. + */ +function deflate_fast(s, flush) { + var hash_head; /* head of the hash chain */ + var bflush; /* set if current block must be flushed */ + + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s.lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) { + return BS_NEED_MORE; + } + if (s.lookahead === 0) { + break; /* flush the current block */ + } } - // 11110XXX - if (i <= 3 && c >> 3 == 0x1E) { - this.charLength = 4; + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + hash_head = 0/*NIL*/; + if (s.lookahead >= MIN_MATCH) { + /*** INSERT_STRING(s, s.strstart, hash_head); ***/ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; + hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; + s.head[s.ins_h] = s.strstart; + /***/ + } + + /* Find the longest match, discarding those <= prev_length. + * At this point we have always match_length < MIN_MATCH + */ + if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + s.match_length = longest_match(s, hash_head); + /* longest_match() sets match_start */ + } + if (s.match_length >= MIN_MATCH) { + // check_match(s, s.strstart, s.match_start, s.match_length); // for debug only + + /*** _tr_tally_dist(s, s.strstart - s.match_start, + s.match_length - MIN_MATCH, bflush); ***/ + bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH); + + s.lookahead -= s.match_length; + + /* Insert new strings in the hash table only if the match length + * is not too large. This saves time but degrades compression. + */ + if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) { + s.match_length--; /* string at strstart already in table */ + do { + s.strstart++; + /*** INSERT_STRING(s, s.strstart, hash_head); ***/ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; + hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; + s.head[s.ins_h] = s.strstart; + /***/ + /* strstart never exceeds WSIZE-MAX_MATCH, so there are + * always MIN_MATCH bytes ahead. + */ + } while (--s.match_length !== 0); + s.strstart++; + } else + { + s.strstart += s.match_length; + s.match_length = 0; + s.ins_h = s.window[s.strstart]; + /* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask; + +//#if MIN_MATCH != 3 +// Call UPDATE_HASH() MIN_MATCH-3 more times +//#endif + /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not + * matter since it will be recomputed at next deflate call. + */ + } + } else { + /* No match, output a literal byte */ + //Tracevv((stderr,"%c", s.window[s.strstart])); + /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ + bflush = trees._tr_tally(s, 0, s.window[s.strstart]); + + s.lookahead--; + s.strstart++; + } + if (bflush) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + } + s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1); + if (flush === Z_FINISH) { + /*** FLUSH_BLOCK(s, 1); ***/ + flush_block_only(s, true); + if (s.strm.avail_out === 0) { + return BS_FINISH_STARTED; + } + /***/ + return BS_FINISH_DONE; + } + if (s.last_lit) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + return BS_BLOCK_DONE; +} + +/* =========================================================================== + * Same as above, but achieves better compression. We use a lazy + * evaluation for matches: a match is finally adopted only if there is + * no better match at the next window position. + */ +function deflate_slow(s, flush) { + var hash_head; /* head of hash chain */ + var bflush; /* set if current block must be flushed */ + + var max_insert; + + /* Process the input block. */ + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the next match, plus MIN_MATCH bytes to insert the + * string following the next match. + */ + if (s.lookahead < MIN_LOOKAHEAD) { + fill_window(s); + if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) { + return BS_NEED_MORE; + } + if (s.lookahead === 0) { break; } /* flush the current block */ + } + + /* Insert the string window[strstart .. strstart+2] in the + * dictionary, and set hash_head to the head of the hash chain: + */ + hash_head = 0/*NIL*/; + if (s.lookahead >= MIN_MATCH) { + /*** INSERT_STRING(s, s.strstart, hash_head); ***/ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; + hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; + s.head[s.ins_h] = s.strstart; + /***/ + } + + /* Find the longest match, discarding those <= prev_length. + */ + s.prev_length = s.match_length; + s.prev_match = s.match_start; + s.match_length = MIN_MATCH - 1; + + if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match && + s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)/*MAX_DIST(s)*/) { + /* To simplify the code, we prevent matches with the string + * of window index 0 (in particular we have to avoid a match + * of the string with itself at the start of the input file). + */ + s.match_length = longest_match(s, hash_head); + /* longest_match() sets match_start */ + + if (s.match_length <= 5 && + (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) { + + /* If prev_match is also MIN_MATCH, match_start is garbage + * but we will ignore the current match anyway. + */ + s.match_length = MIN_MATCH - 1; + } + } + /* If there was a match at the previous step and the current + * match is not better, output the previous match: + */ + if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) { + max_insert = s.strstart + s.lookahead - MIN_MATCH; + /* Do not insert strings in hash table beyond this. */ + + //check_match(s, s.strstart-1, s.prev_match, s.prev_length); + + /***_tr_tally_dist(s, s.strstart - 1 - s.prev_match, + s.prev_length - MIN_MATCH, bflush);***/ + bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH); + /* Insert in hash table all strings up to the end of the match. + * strstart-1 and strstart are already inserted. If there is not + * enough lookahead, the last two strings are not inserted in + * the hash table. + */ + s.lookahead -= s.prev_length - 1; + s.prev_length -= 2; + do { + if (++s.strstart <= max_insert) { + /*** INSERT_STRING(s, s.strstart, hash_head); ***/ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; + hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; + s.head[s.ins_h] = s.strstart; + /***/ + } + } while (--s.prev_length !== 0); + s.match_available = 0; + s.match_length = MIN_MATCH - 1; + s.strstart++; + + if (bflush) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + + } else if (s.match_available) { + /* If there was no match at the previous position, output a + * single literal. If there was a match but the current match + * is longer, truncate the previous match to a single literal. + */ + //Tracevv((stderr,"%c", s->window[s->strstart-1])); + /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/ + bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]); + + if (bflush) { + /*** FLUSH_BLOCK_ONLY(s, 0) ***/ + flush_block_only(s, false); + /***/ + } + s.strstart++; + s.lookahead--; + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + } else { + /* There is no previous match to compare with, wait for + * the next step to decide. + */ + s.match_available = 1; + s.strstart++; + s.lookahead--; + } + } + //Assert (flush != Z_NO_FLUSH, "no flush?"); + if (s.match_available) { + //Tracevv((stderr,"%c", s->window[s->strstart-1])); + /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/ + bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]); + + s.match_available = 0; + } + s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1; + if (flush === Z_FINISH) { + /*** FLUSH_BLOCK(s, 1); ***/ + flush_block_only(s, true); + if (s.strm.avail_out === 0) { + return BS_FINISH_STARTED; + } + /***/ + return BS_FINISH_DONE; + } + if (s.last_lit) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + + return BS_BLOCK_DONE; +} + + +/* =========================================================================== + * For Z_RLE, simply look for runs of bytes, generate matches only of distance + * one. Do not maintain a hash table. (It will be regenerated if this run of + * deflate switches away from Z_RLE.) + */ +function deflate_rle(s, flush) { + var bflush; /* set if current block must be flushed */ + var prev; /* byte at distance one to match */ + var scan, strend; /* scan goes up to strend for length of run */ + + var _win = s.window; + + for (;;) { + /* Make sure that we always have enough lookahead, except + * at the end of the input file. We need MAX_MATCH bytes + * for the longest run, plus one for the unrolled loop. + */ + if (s.lookahead <= MAX_MATCH) { + fill_window(s); + if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) { + return BS_NEED_MORE; + } + if (s.lookahead === 0) { break; } /* flush the current block */ + } + + /* See how many times the previous byte repeats */ + s.match_length = 0; + if (s.lookahead >= MIN_MATCH && s.strstart > 0) { + scan = s.strstart - 1; + prev = _win[scan]; + if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) { + strend = s.strstart + MAX_MATCH; + do { + /*jshint noempty:false*/ + } while (prev === _win[++scan] && prev === _win[++scan] && + prev === _win[++scan] && prev === _win[++scan] && + prev === _win[++scan] && prev === _win[++scan] && + prev === _win[++scan] && prev === _win[++scan] && + scan < strend); + s.match_length = MAX_MATCH - (strend - scan); + if (s.match_length > s.lookahead) { + s.match_length = s.lookahead; + } + } + //Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan"); + } + + /* Emit match if have run of MIN_MATCH or longer, else emit literal */ + if (s.match_length >= MIN_MATCH) { + //check_match(s, s.strstart, s.strstart - 1, s.match_length); + + /*** _tr_tally_dist(s, 1, s.match_length - MIN_MATCH, bflush); ***/ + bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH); + + s.lookahead -= s.match_length; + s.strstart += s.match_length; + s.match_length = 0; + } else { + /* No match, output a literal byte */ + //Tracevv((stderr,"%c", s->window[s->strstart])); + /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ + bflush = trees._tr_tally(s, 0, s.window[s.strstart]); + + s.lookahead--; + s.strstart++; + } + if (bflush) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + } + s.insert = 0; + if (flush === Z_FINISH) { + /*** FLUSH_BLOCK(s, 1); ***/ + flush_block_only(s, true); + if (s.strm.avail_out === 0) { + return BS_FINISH_STARTED; + } + /***/ + return BS_FINISH_DONE; + } + if (s.last_lit) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + return BS_BLOCK_DONE; +} + +/* =========================================================================== + * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table. + * (It will be regenerated if this run of deflate switches away from Huffman.) + */ +function deflate_huff(s, flush) { + var bflush; /* set if current block must be flushed */ + + for (;;) { + /* Make sure that we have a literal to write. */ + if (s.lookahead === 0) { + fill_window(s); + if (s.lookahead === 0) { + if (flush === Z_NO_FLUSH) { + return BS_NEED_MORE; + } + break; /* flush the current block */ + } + } + + /* Output a literal byte */ + s.match_length = 0; + //Tracevv((stderr,"%c", s->window[s->strstart])); + /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ + bflush = trees._tr_tally(s, 0, s.window[s.strstart]); + s.lookahead--; + s.strstart++; + if (bflush) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + } + s.insert = 0; + if (flush === Z_FINISH) { + /*** FLUSH_BLOCK(s, 1); ***/ + flush_block_only(s, true); + if (s.strm.avail_out === 0) { + return BS_FINISH_STARTED; + } + /***/ + return BS_FINISH_DONE; + } + if (s.last_lit) { + /*** FLUSH_BLOCK(s, 0); ***/ + flush_block_only(s, false); + if (s.strm.avail_out === 0) { + return BS_NEED_MORE; + } + /***/ + } + return BS_BLOCK_DONE; +} + +/* Values for max_lazy_match, good_match and max_chain_length, depending on + * the desired pack level (0..9). The values given below have been tuned to + * exclude worst case performance for pathological files. Better values may be + * found for specific files. + */ +function Config(good_length, max_lazy, nice_length, max_chain, func) { + this.good_length = good_length; + this.max_lazy = max_lazy; + this.nice_length = nice_length; + this.max_chain = max_chain; + this.func = func; +} + +var configuration_table; + +configuration_table = [ + /* good lazy nice chain */ + new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */ + new Config(4, 4, 8, 4, deflate_fast), /* 1 max speed, no lazy matches */ + new Config(4, 5, 16, 8, deflate_fast), /* 2 */ + new Config(4, 6, 32, 32, deflate_fast), /* 3 */ + + new Config(4, 4, 16, 16, deflate_slow), /* 4 lazy matches */ + new Config(8, 16, 32, 32, deflate_slow), /* 5 */ + new Config(8, 16, 128, 128, deflate_slow), /* 6 */ + new Config(8, 32, 128, 256, deflate_slow), /* 7 */ + new Config(32, 128, 258, 1024, deflate_slow), /* 8 */ + new Config(32, 258, 258, 4096, deflate_slow) /* 9 max compression */ +]; + + +/* =========================================================================== + * Initialize the "longest match" routines for a new zlib stream + */ +function lm_init(s) { + s.window_size = 2 * s.w_size; + + /*** CLEAR_HASH(s); ***/ + zero(s.head); // Fill with NIL (= 0); + + /* Set the default configuration parameters: + */ + s.max_lazy_match = configuration_table[s.level].max_lazy; + s.good_match = configuration_table[s.level].good_length; + s.nice_match = configuration_table[s.level].nice_length; + s.max_chain_length = configuration_table[s.level].max_chain; + + s.strstart = 0; + s.block_start = 0; + s.lookahead = 0; + s.insert = 0; + s.match_length = s.prev_length = MIN_MATCH - 1; + s.match_available = 0; + s.ins_h = 0; +} + + +function DeflateState() { + this.strm = null; /* pointer back to this zlib stream */ + this.status = 0; /* as the name implies */ + this.pending_buf = null; /* output still pending */ + this.pending_buf_size = 0; /* size of pending_buf */ + this.pending_out = 0; /* next pending byte to output to the stream */ + this.pending = 0; /* nb of bytes in the pending buffer */ + this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */ + this.gzhead = null; /* gzip header information to write */ + this.gzindex = 0; /* where in extra, name, or comment */ + this.method = Z_DEFLATED; /* can only be DEFLATED */ + this.last_flush = -1; /* value of flush param for previous deflate call */ + + this.w_size = 0; /* LZ77 window size (32K by default) */ + this.w_bits = 0; /* log2(w_size) (8..16) */ + this.w_mask = 0; /* w_size - 1 */ + + this.window = null; + /* Sliding window. Input bytes are read into the second half of the window, + * and move to the first half later to keep a dictionary of at least wSize + * bytes. With this organization, matches are limited to a distance of + * wSize-MAX_MATCH bytes, but this ensures that IO is always + * performed with a length multiple of the block size. + */ + + this.window_size = 0; + /* Actual size of window: 2*wSize, except when the user input buffer + * is directly used as sliding window. + */ + + this.prev = null; + /* Link to older string with same hash index. To limit the size of this + * array to 64K, this link is maintained only for the last 32K strings. + * An index in this array is thus a window index modulo 32K. + */ + + this.head = null; /* Heads of the hash chains or NIL. */ + + this.ins_h = 0; /* hash index of string to be inserted */ + this.hash_size = 0; /* number of elements in hash table */ + this.hash_bits = 0; /* log2(hash_size) */ + this.hash_mask = 0; /* hash_size-1 */ + + this.hash_shift = 0; + /* Number of bits by which ins_h must be shifted at each input + * step. It must be such that after MIN_MATCH steps, the oldest + * byte no longer takes part in the hash key, that is: + * hash_shift * MIN_MATCH >= hash_bits + */ + + this.block_start = 0; + /* Window position at the beginning of the current output block. Gets + * negative when the window is moved backwards. + */ + + this.match_length = 0; /* length of best match */ + this.prev_match = 0; /* previous match */ + this.match_available = 0; /* set if previous match exists */ + this.strstart = 0; /* start of string to insert */ + this.match_start = 0; /* start of matching string */ + this.lookahead = 0; /* number of valid bytes ahead in window */ + + this.prev_length = 0; + /* Length of the best match at previous step. Matches not greater than this + * are discarded. This is used in the lazy match evaluation. + */ + + this.max_chain_length = 0; + /* To speed up deflation, hash chains are never searched beyond this + * length. A higher limit improves compression ratio but degrades the + * speed. + */ + + this.max_lazy_match = 0; + /* Attempt to find a better match only when the current match is strictly + * smaller than this value. This mechanism is used only for compression + * levels >= 4. + */ + // That's alias to max_lazy_match, don't use directly + //this.max_insert_length = 0; + /* Insert new strings in the hash table only if the match length is not + * greater than this length. This saves time but degrades compression. + * max_insert_length is used only for compression levels <= 3. + */ + + this.level = 0; /* compression level (1..9) */ + this.strategy = 0; /* favor or force Huffman coding*/ + + this.good_match = 0; + /* Use a faster search when the previous match is longer than this */ + + this.nice_match = 0; /* Stop searching when current match exceeds this */ + + /* used by trees.c: */ + + /* Didn't use ct_data typedef below to suppress compiler warning */ + + // struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ + // struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ + // struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ + + // Use flat array of DOUBLE size, with interleaved fata, + // because JS does not support effective + this.dyn_ltree = new utils.Buf16(HEAP_SIZE * 2); + this.dyn_dtree = new utils.Buf16((2 * D_CODES + 1) * 2); + this.bl_tree = new utils.Buf16((2 * BL_CODES + 1) * 2); + zero(this.dyn_ltree); + zero(this.dyn_dtree); + zero(this.bl_tree); + + this.l_desc = null; /* desc. for literal tree */ + this.d_desc = null; /* desc. for distance tree */ + this.bl_desc = null; /* desc. for bit length tree */ + + //ush bl_count[MAX_BITS+1]; + this.bl_count = new utils.Buf16(MAX_BITS + 1); + /* number of codes at each bit length for an optimal tree */ + + //int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ + this.heap = new utils.Buf16(2 * L_CODES + 1); /* heap used to build the Huffman trees */ + zero(this.heap); + + this.heap_len = 0; /* number of elements in the heap */ + this.heap_max = 0; /* element of largest frequency */ + /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. + * The same heap array is used to build all trees. + */ + + this.depth = new utils.Buf16(2 * L_CODES + 1); //uch depth[2*L_CODES+1]; + zero(this.depth); + /* Depth of each subtree used as tie breaker for trees of equal frequency + */ + + this.l_buf = 0; /* buffer index for literals or lengths */ + + this.lit_bufsize = 0; + /* Size of match buffer for literals/lengths. There are 4 reasons for + * limiting lit_bufsize to 64K: + * - frequencies can be kept in 16 bit counters + * - if compression is not successful for the first block, all input + * data is still in the window so we can still emit a stored block even + * when input comes from standard input. (This can also be done for + * all blocks if lit_bufsize is not greater than 32K.) + * - if compression is not successful for a file smaller than 64K, we can + * even emit a stored file instead of a stored block (saving 5 bytes). + * This is applicable only for zip (not gzip or zlib). + * - creating new Huffman trees less frequently may not provide fast + * adaptation to changes in the input data statistics. (Take for + * example a binary file with poorly compressible code followed by + * a highly compressible string table.) Smaller buffer sizes give + * fast adaptation but have of course the overhead of transmitting + * trees more frequently. + * - I can't count above 4 + */ + + this.last_lit = 0; /* running index in l_buf */ + + this.d_buf = 0; + /* Buffer index for distances. To simplify the code, d_buf and l_buf have + * the same number of elements. To use different lengths, an extra flag + * array would be necessary. + */ + + this.opt_len = 0; /* bit length of current block with optimal trees */ + this.static_len = 0; /* bit length of current block with static trees */ + this.matches = 0; /* number of string matches in current block */ + this.insert = 0; /* bytes at end of window left to insert */ + + + this.bi_buf = 0; + /* Output buffer. bits are inserted starting at the bottom (least + * significant bits). + */ + this.bi_valid = 0; + /* Number of valid bits in bi_buf. All bits above the last valid bit + * are always zero. + */ + + // Used for window memory init. We safely ignore it for JS. That makes + // sense only for pointers and memory check tools. + //this.high_water = 0; + /* High water mark offset in window for initialized bytes -- bytes above + * this are set to zero in order to avoid memory check warnings when + * longest match routines access bytes past the input. This is then + * updated to the new high water mark. + */ +} + + +function deflateResetKeep(strm) { + var s; + + if (!strm || !strm.state) { + return err(strm, Z_STREAM_ERROR); + } + + strm.total_in = strm.total_out = 0; + strm.data_type = Z_UNKNOWN; + + s = strm.state; + s.pending = 0; + s.pending_out = 0; + + if (s.wrap < 0) { + s.wrap = -s.wrap; + /* was made negative by deflate(..., Z_FINISH); */ + } + s.status = (s.wrap ? INIT_STATE : BUSY_STATE); + strm.adler = (s.wrap === 2) ? + 0 // crc32(0, Z_NULL, 0) + : + 1; // adler32(0, Z_NULL, 0) + s.last_flush = Z_NO_FLUSH; + trees._tr_init(s); + return Z_OK; +} + + +function deflateReset(strm) { + var ret = deflateResetKeep(strm); + if (ret === Z_OK) { + lm_init(strm.state); + } + return ret; +} + + +function deflateSetHeader(strm, head) { + if (!strm || !strm.state) { return Z_STREAM_ERROR; } + if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; } + strm.state.gzhead = head; + return Z_OK; +} + + +function deflateInit2(strm, level, method, windowBits, memLevel, strategy) { + if (!strm) { // === Z_NULL + return Z_STREAM_ERROR; + } + var wrap = 1; + + if (level === Z_DEFAULT_COMPRESSION) { + level = 6; + } + + if (windowBits < 0) { /* suppress zlib wrapper */ + wrap = 0; + windowBits = -windowBits; + } + + else if (windowBits > 15) { + wrap = 2; /* write gzip wrapper instead */ + windowBits -= 16; + } + + + if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED || + windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || + strategy < 0 || strategy > Z_FIXED) { + return err(strm, Z_STREAM_ERROR); + } + + + if (windowBits === 8) { + windowBits = 9; + } + /* until 256-byte window bug fixed */ + + var s = new DeflateState(); + + strm.state = s; + s.strm = strm; + + s.wrap = wrap; + s.gzhead = null; + s.w_bits = windowBits; + s.w_size = 1 << s.w_bits; + s.w_mask = s.w_size - 1; + + s.hash_bits = memLevel + 7; + s.hash_size = 1 << s.hash_bits; + s.hash_mask = s.hash_size - 1; + s.hash_shift = ~~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH); + + s.window = new utils.Buf8(s.w_size * 2); + s.head = new utils.Buf16(s.hash_size); + s.prev = new utils.Buf16(s.w_size); + + // Don't need mem init magic for JS. + //s.high_water = 0; /* nothing written to s->window yet */ + + s.lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ + + s.pending_buf_size = s.lit_bufsize * 4; + + //overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); + //s->pending_buf = (uchf *) overlay; + s.pending_buf = new utils.Buf8(s.pending_buf_size); + + // It is offset from `s.pending_buf` (size is `s.lit_bufsize * 2`) + //s->d_buf = overlay + s->lit_bufsize/sizeof(ush); + s.d_buf = 1 * s.lit_bufsize; + + //s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; + s.l_buf = (1 + 2) * s.lit_bufsize; + + s.level = level; + s.strategy = strategy; + s.method = method; + + return deflateReset(strm); +} + +function deflateInit(strm, level) { + return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY); +} + + +function deflate(strm, flush) { + var old_flush, s; + var beg, val; // for gzip header write only + + if (!strm || !strm.state || + flush > Z_BLOCK || flush < 0) { + return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR; + } + + s = strm.state; + + if (!strm.output || + (!strm.input && strm.avail_in !== 0) || + (s.status === FINISH_STATE && flush !== Z_FINISH)) { + return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR); + } + + s.strm = strm; /* just in case */ + old_flush = s.last_flush; + s.last_flush = flush; + + /* Write the header */ + if (s.status === INIT_STATE) { + + if (s.wrap === 2) { // GZIP header + strm.adler = 0; //crc32(0L, Z_NULL, 0); + put_byte(s, 31); + put_byte(s, 139); + put_byte(s, 8); + if (!s.gzhead) { // s->gzhead == Z_NULL + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, 0); + put_byte(s, s.level === 9 ? 2 : + (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ? + 4 : 0)); + put_byte(s, OS_CODE); + s.status = BUSY_STATE; + } + else { + put_byte(s, (s.gzhead.text ? 1 : 0) + + (s.gzhead.hcrc ? 2 : 0) + + (!s.gzhead.extra ? 0 : 4) + + (!s.gzhead.name ? 0 : 8) + + (!s.gzhead.comment ? 0 : 16) + ); + put_byte(s, s.gzhead.time & 0xff); + put_byte(s, (s.gzhead.time >> 8) & 0xff); + put_byte(s, (s.gzhead.time >> 16) & 0xff); + put_byte(s, (s.gzhead.time >> 24) & 0xff); + put_byte(s, s.level === 9 ? 2 : + (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ? + 4 : 0)); + put_byte(s, s.gzhead.os & 0xff); + if (s.gzhead.extra && s.gzhead.extra.length) { + put_byte(s, s.gzhead.extra.length & 0xff); + put_byte(s, (s.gzhead.extra.length >> 8) & 0xff); + } + if (s.gzhead.hcrc) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0); + } + s.gzindex = 0; + s.status = EXTRA_STATE; + } + } + else // DEFLATE header + { + var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8; + var level_flags = -1; + + if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) { + level_flags = 0; + } else if (s.level < 6) { + level_flags = 1; + } else if (s.level === 6) { + level_flags = 2; + } else { + level_flags = 3; + } + header |= (level_flags << 6); + if (s.strstart !== 0) { header |= PRESET_DICT; } + header += 31 - (header % 31); + + s.status = BUSY_STATE; + putShortMSB(s, header); + + /* Save the adler32 of the preset dictionary: */ + if (s.strstart !== 0) { + putShortMSB(s, strm.adler >>> 16); + putShortMSB(s, strm.adler & 0xffff); + } + strm.adler = 1; // adler32(0L, Z_NULL, 0); + } + } + +//#ifdef GZIP + if (s.status === EXTRA_STATE) { + if (s.gzhead.extra/* != Z_NULL*/) { + beg = s.pending; /* start of bytes to update crc */ + + while (s.gzindex < (s.gzhead.extra.length & 0xffff)) { + if (s.pending === s.pending_buf_size) { + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + flush_pending(strm); + beg = s.pending; + if (s.pending === s.pending_buf_size) { + break; + } + } + put_byte(s, s.gzhead.extra[s.gzindex] & 0xff); + s.gzindex++; + } + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + if (s.gzindex === s.gzhead.extra.length) { + s.gzindex = 0; + s.status = NAME_STATE; + } + } + else { + s.status = NAME_STATE; + } + } + if (s.status === NAME_STATE) { + if (s.gzhead.name/* != Z_NULL*/) { + beg = s.pending; /* start of bytes to update crc */ + //int val; + + do { + if (s.pending === s.pending_buf_size) { + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + flush_pending(strm); + beg = s.pending; + if (s.pending === s.pending_buf_size) { + val = 1; + break; + } + } + // JS specific: little magic to add zero terminator to end of string + if (s.gzindex < s.gzhead.name.length) { + val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff; + } else { + val = 0; + } + put_byte(s, val); + } while (val !== 0); + + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + if (val === 0) { + s.gzindex = 0; + s.status = COMMENT_STATE; + } + } + else { + s.status = COMMENT_STATE; + } + } + if (s.status === COMMENT_STATE) { + if (s.gzhead.comment/* != Z_NULL*/) { + beg = s.pending; /* start of bytes to update crc */ + //int val; + + do { + if (s.pending === s.pending_buf_size) { + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + flush_pending(strm); + beg = s.pending; + if (s.pending === s.pending_buf_size) { + val = 1; + break; + } + } + // JS specific: little magic to add zero terminator to end of string + if (s.gzindex < s.gzhead.comment.length) { + val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff; + } else { + val = 0; + } + put_byte(s, val); + } while (val !== 0); + + if (s.gzhead.hcrc && s.pending > beg) { + strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); + } + if (val === 0) { + s.status = HCRC_STATE; + } + } + else { + s.status = HCRC_STATE; + } + } + if (s.status === HCRC_STATE) { + if (s.gzhead.hcrc) { + if (s.pending + 2 > s.pending_buf_size) { + flush_pending(strm); + } + if (s.pending + 2 <= s.pending_buf_size) { + put_byte(s, strm.adler & 0xff); + put_byte(s, (strm.adler >> 8) & 0xff); + strm.adler = 0; //crc32(0L, Z_NULL, 0); + s.status = BUSY_STATE; + } + } + else { + s.status = BUSY_STATE; + } + } +//#endif + + /* Flush as much pending output as possible */ + if (s.pending !== 0) { + flush_pending(strm); + if (strm.avail_out === 0) { + /* Since avail_out is 0, deflate will be called again with + * more output space, but possibly with both pending and + * avail_in equal to zero. There won't be anything to do, + * but this is not an error situation so make sure we + * return OK instead of BUF_ERROR at next call of deflate: + */ + s.last_flush = -1; + return Z_OK; + } + + /* Make sure there is something to do and avoid duplicate consecutive + * flushes. For repeated and useless calls with Z_FINISH, we keep + * returning Z_STREAM_END instead of Z_BUF_ERROR. + */ + } else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) && + flush !== Z_FINISH) { + return err(strm, Z_BUF_ERROR); + } + + /* User must not provide more input after the first FINISH: */ + if (s.status === FINISH_STATE && strm.avail_in !== 0) { + return err(strm, Z_BUF_ERROR); + } + + /* Start a new block or continue the current one. + */ + if (strm.avail_in !== 0 || s.lookahead !== 0 || + (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) { + var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) : + (s.strategy === Z_RLE ? deflate_rle(s, flush) : + configuration_table[s.level].func(s, flush)); + + if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) { + s.status = FINISH_STATE; + } + if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) { + if (strm.avail_out === 0) { + s.last_flush = -1; + /* avoid BUF_ERROR next call, see above */ + } + return Z_OK; + /* If flush != Z_NO_FLUSH && avail_out == 0, the next call + * of deflate should use the same flush parameter to make sure + * that the flush is complete. So we don't have to output an + * empty block here, this will be done at next call. This also + * ensures that for a very small output buffer, we emit at most + * one empty block. + */ + } + if (bstate === BS_BLOCK_DONE) { + if (flush === Z_PARTIAL_FLUSH) { + trees._tr_align(s); + } + else if (flush !== Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */ + + trees._tr_stored_block(s, 0, 0, false); + /* For a full flush, this empty block will be recognized + * as a special marker by inflate_sync(). + */ + if (flush === Z_FULL_FLUSH) { + /*** CLEAR_HASH(s); ***/ /* forget history */ + zero(s.head); // Fill with NIL (= 0); + + if (s.lookahead === 0) { + s.strstart = 0; + s.block_start = 0; + s.insert = 0; + } + } + } + flush_pending(strm); + if (strm.avail_out === 0) { + s.last_flush = -1; /* avoid BUF_ERROR at next call, see above */ + return Z_OK; + } + } + } + //Assert(strm->avail_out > 0, "bug2"); + //if (strm.avail_out <= 0) { throw new Error("bug2");} + + if (flush !== Z_FINISH) { return Z_OK; } + if (s.wrap <= 0) { return Z_STREAM_END; } + + /* Write the trailer */ + if (s.wrap === 2) { + put_byte(s, strm.adler & 0xff); + put_byte(s, (strm.adler >> 8) & 0xff); + put_byte(s, (strm.adler >> 16) & 0xff); + put_byte(s, (strm.adler >> 24) & 0xff); + put_byte(s, strm.total_in & 0xff); + put_byte(s, (strm.total_in >> 8) & 0xff); + put_byte(s, (strm.total_in >> 16) & 0xff); + put_byte(s, (strm.total_in >> 24) & 0xff); + } + else + { + putShortMSB(s, strm.adler >>> 16); + putShortMSB(s, strm.adler & 0xffff); + } + + flush_pending(strm); + /* If avail_out is zero, the application will call deflate again + * to flush the rest. + */ + if (s.wrap > 0) { s.wrap = -s.wrap; } + /* write the trailer only once! */ + return s.pending !== 0 ? Z_OK : Z_STREAM_END; +} + +function deflateEnd(strm) { + var status; + + if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) { + return Z_STREAM_ERROR; + } + + status = strm.state.status; + if (status !== INIT_STATE && + status !== EXTRA_STATE && + status !== NAME_STATE && + status !== COMMENT_STATE && + status !== HCRC_STATE && + status !== BUSY_STATE && + status !== FINISH_STATE + ) { + return err(strm, Z_STREAM_ERROR); + } + + strm.state = null; + + return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK; +} + + +/* ========================================================================= + * Initializes the compression dictionary from the given byte + * sequence without producing any compressed output. + */ +function deflateSetDictionary(strm, dictionary) { + var dictLength = dictionary.length; + + var s; + var str, n; + var wrap; + var avail; + var next; + var input; + var tmpDict; + + if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) { + return Z_STREAM_ERROR; + } + + s = strm.state; + wrap = s.wrap; + + if (wrap === 2 || (wrap === 1 && s.status !== INIT_STATE) || s.lookahead) { + return Z_STREAM_ERROR; + } + + /* when using zlib wrappers, compute Adler-32 for provided dictionary */ + if (wrap === 1) { + /* adler32(strm->adler, dictionary, dictLength); */ + strm.adler = adler32(strm.adler, dictionary, dictLength, 0); + } + + s.wrap = 0; /* avoid computing Adler-32 in read_buf */ + + /* if dictionary would fill window, just replace the history */ + if (dictLength >= s.w_size) { + if (wrap === 0) { /* already empty otherwise */ + /*** CLEAR_HASH(s); ***/ + zero(s.head); // Fill with NIL (= 0); + s.strstart = 0; + s.block_start = 0; + s.insert = 0; + } + /* use the tail */ + // dictionary = dictionary.slice(dictLength - s.w_size); + tmpDict = new utils.Buf8(s.w_size); + utils.arraySet(tmpDict, dictionary, dictLength - s.w_size, s.w_size, 0); + dictionary = tmpDict; + dictLength = s.w_size; + } + /* insert dictionary into window and hash */ + avail = strm.avail_in; + next = strm.next_in; + input = strm.input; + strm.avail_in = dictLength; + strm.next_in = 0; + strm.input = dictionary; + fill_window(s); + while (s.lookahead >= MIN_MATCH) { + str = s.strstart; + n = s.lookahead - (MIN_MATCH - 1); + do { + /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */ + s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask; + + s.prev[str & s.w_mask] = s.head[s.ins_h]; + + s.head[s.ins_h] = str; + str++; + } while (--n); + s.strstart = str; + s.lookahead = MIN_MATCH - 1; + fill_window(s); + } + s.strstart += s.lookahead; + s.block_start = s.strstart; + s.insert = s.lookahead; + s.lookahead = 0; + s.match_length = s.prev_length = MIN_MATCH - 1; + s.match_available = 0; + strm.next_in = next; + strm.input = input; + strm.avail_in = avail; + s.wrap = wrap; + return Z_OK; +} + + +exports.deflateInit = deflateInit; +exports.deflateInit2 = deflateInit2; +exports.deflateReset = deflateReset; +exports.deflateResetKeep = deflateResetKeep; +exports.deflateSetHeader = deflateSetHeader; +exports.deflate = deflate; +exports.deflateEnd = deflateEnd; +exports.deflateSetDictionary = deflateSetDictionary; +exports.deflateInfo = 'pako deflate (from Nodeca project)'; + +/* Not implemented +exports.deflateBound = deflateBound; +exports.deflateCopy = deflateCopy; +exports.deflateParams = deflateParams; +exports.deflatePending = deflatePending; +exports.deflatePrime = deflatePrime; +exports.deflateTune = deflateTune; +*/ + +},{"../utils/common":49,"./adler32":50,"./crc32":52,"./messages":57,"./trees":58}],54:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +// See state defs from inflate.js +var BAD = 30; /* got a data error -- remain here until reset */ +var TYPE = 12; /* i: waiting for type bits, including last-flag bit */ + +/* + Decode literal, length, and distance codes and write out the resulting + literal and match bytes until either not enough input or output is + available, an end-of-block is encountered, or a data error is encountered. + When large enough input and output buffers are supplied to inflate(), for + example, a 16K input buffer and a 64K output buffer, more than 95% of the + inflate execution time is spent in this routine. + + Entry assumptions: + + state.mode === LEN + strm.avail_in >= 6 + strm.avail_out >= 258 + start >= strm.avail_out + state.bits < 8 + + On return, state.mode is one of: + + LEN -- ran out of enough output space or enough available input + TYPE -- reached end of block code, inflate() to interpret next block + BAD -- error in block data + + Notes: + + - The maximum input bits used by a length/distance pair is 15 bits for the + length code, 5 bits for the length extra, 15 bits for the distance code, + and 13 bits for the distance extra. This totals 48 bits, or six bytes. + Therefore if strm.avail_in >= 6, then there is enough input to avoid + checking for available input while decoding. + + - The maximum bytes that a single length/distance pair can output is 258 + bytes, which is the maximum length that can be coded. inflate_fast() + requires strm.avail_out >= 258 for each loop to avoid checking for + output space. + */ +module.exports = function inflate_fast(strm, start) { + var state; + var _in; /* local strm.input */ + var last; /* have enough input while in < last */ + var _out; /* local strm.output */ + var beg; /* inflate()'s initial strm.output */ + var end; /* while out < end, enough space available */ +//#ifdef INFLATE_STRICT + var dmax; /* maximum distance from zlib header */ +//#endif + var wsize; /* window size or zero if not using window */ + var whave; /* valid bytes in the window */ + var wnext; /* window write index */ + // Use `s_window` instead `window`, avoid conflict with instrumentation tools + var s_window; /* allocated sliding window, if wsize != 0 */ + var hold; /* local strm.hold */ + var bits; /* local strm.bits */ + var lcode; /* local strm.lencode */ + var dcode; /* local strm.distcode */ + var lmask; /* mask for first level of length codes */ + var dmask; /* mask for first level of distance codes */ + var here; /* retrieved table entry */ + var op; /* code bits, operation, extra bits, or */ + /* window position, window bytes to copy */ + var len; /* match length, unused bytes */ + var dist; /* match distance */ + var from; /* where to copy match from */ + var from_source; + + + var input, output; // JS specific, because we have no pointers + + /* copy state to local variables */ + state = strm.state; + //here = state.here; + _in = strm.next_in; + input = strm.input; + last = _in + (strm.avail_in - 5); + _out = strm.next_out; + output = strm.output; + beg = _out - (start - strm.avail_out); + end = _out + (strm.avail_out - 257); +//#ifdef INFLATE_STRICT + dmax = state.dmax; +//#endif + wsize = state.wsize; + whave = state.whave; + wnext = state.wnext; + s_window = state.window; + hold = state.hold; + bits = state.bits; + lcode = state.lencode; + dcode = state.distcode; + lmask = (1 << state.lenbits) - 1; + dmask = (1 << state.distbits) - 1; + + + /* decode literals and length/distances until end-of-block or not enough + input data or output space */ + + top: + do { + if (bits < 15) { + hold += input[_in++] << bits; + bits += 8; + hold += input[_in++] << bits; + bits += 8; + } + + here = lcode[hold & lmask]; + + dolen: + for (;;) { // Goto emulation + op = here >>> 24/*here.bits*/; + hold >>>= op; + bits -= op; + op = (here >>> 16) & 0xff/*here.op*/; + if (op === 0) { /* literal */ + //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + // "inflate: literal '%c'\n" : + // "inflate: literal 0x%02x\n", here.val)); + output[_out++] = here & 0xffff/*here.val*/; + } + else if (op & 16) { /* length base */ + len = here & 0xffff/*here.val*/; + op &= 15; /* number of extra bits */ + if (op) { + if (bits < op) { + hold += input[_in++] << bits; + bits += 8; + } + len += hold & ((1 << op) - 1); + hold >>>= op; + bits -= op; + } + //Tracevv((stderr, "inflate: length %u\n", len)); + if (bits < 15) { + hold += input[_in++] << bits; + bits += 8; + hold += input[_in++] << bits; + bits += 8; + } + here = dcode[hold & dmask]; + + dodist: + for (;;) { // goto emulation + op = here >>> 24/*here.bits*/; + hold >>>= op; + bits -= op; + op = (here >>> 16) & 0xff/*here.op*/; + + if (op & 16) { /* distance base */ + dist = here & 0xffff/*here.val*/; + op &= 15; /* number of extra bits */ + if (bits < op) { + hold += input[_in++] << bits; + bits += 8; + if (bits < op) { + hold += input[_in++] << bits; + bits += 8; + } + } + dist += hold & ((1 << op) - 1); +//#ifdef INFLATE_STRICT + if (dist > dmax) { + strm.msg = 'invalid distance too far back'; + state.mode = BAD; + break top; + } +//#endif + hold >>>= op; + bits -= op; + //Tracevv((stderr, "inflate: distance %u\n", dist)); + op = _out - beg; /* max distance in output */ + if (dist > op) { /* see if copy from window */ + op = dist - op; /* distance back in window */ + if (op > whave) { + if (state.sane) { + strm.msg = 'invalid distance too far back'; + state.mode = BAD; + break top; + } + +// (!) This block is disabled in zlib defaults, +// don't enable it for binary compatibility +//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR +// if (len <= op - whave) { +// do { +// output[_out++] = 0; +// } while (--len); +// continue top; +// } +// len -= op - whave; +// do { +// output[_out++] = 0; +// } while (--op > whave); +// if (op === 0) { +// from = _out - dist; +// do { +// output[_out++] = output[from++]; +// } while (--len); +// continue top; +// } +//#endif + } + from = 0; // window index + from_source = s_window; + if (wnext === 0) { /* very common case */ + from += wsize - op; + if (op < len) { /* some from window */ + len -= op; + do { + output[_out++] = s_window[from++]; + } while (--op); + from = _out - dist; /* rest from output */ + from_source = output; + } + } + else if (wnext < op) { /* wrap around window */ + from += wsize + wnext - op; + op -= wnext; + if (op < len) { /* some from end of window */ + len -= op; + do { + output[_out++] = s_window[from++]; + } while (--op); + from = 0; + if (wnext < len) { /* some from start of window */ + op = wnext; + len -= op; + do { + output[_out++] = s_window[from++]; + } while (--op); + from = _out - dist; /* rest from output */ + from_source = output; + } + } + } + else { /* contiguous in window */ + from += wnext - op; + if (op < len) { /* some from window */ + len -= op; + do { + output[_out++] = s_window[from++]; + } while (--op); + from = _out - dist; /* rest from output */ + from_source = output; + } + } + while (len > 2) { + output[_out++] = from_source[from++]; + output[_out++] = from_source[from++]; + output[_out++] = from_source[from++]; + len -= 3; + } + if (len) { + output[_out++] = from_source[from++]; + if (len > 1) { + output[_out++] = from_source[from++]; + } + } + } + else { + from = _out - dist; /* copy direct from output */ + do { /* minimum length is three */ + output[_out++] = output[from++]; + output[_out++] = output[from++]; + output[_out++] = output[from++]; + len -= 3; + } while (len > 2); + if (len) { + output[_out++] = output[from++]; + if (len > 1) { + output[_out++] = output[from++]; + } + } + } + } + else if ((op & 64) === 0) { /* 2nd level distance code */ + here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))]; + continue dodist; + } + else { + strm.msg = 'invalid distance code'; + state.mode = BAD; + break top; + } + + break; // need to emulate goto via "continue" + } + } + else if ((op & 64) === 0) { /* 2nd level length code */ + here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))]; + continue dolen; + } + else if (op & 32) { /* end-of-block */ + //Tracevv((stderr, "inflate: end of block\n")); + state.mode = TYPE; + break top; + } + else { + strm.msg = 'invalid literal/length code'; + state.mode = BAD; + break top; + } + + break; // need to emulate goto via "continue" + } + } while (_in < last && _out < end); + + /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ + len = bits >> 3; + _in -= len; + bits -= len << 3; + hold &= (1 << bits) - 1; + + /* update state and return */ + strm.next_in = _in; + strm.next_out = _out; + strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last)); + strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end)); + state.hold = hold; + state.bits = bits; + return; +}; + +},{}],55:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +var utils = require('../utils/common'); +var adler32 = require('./adler32'); +var crc32 = require('./crc32'); +var inflate_fast = require('./inffast'); +var inflate_table = require('./inftrees'); + +var CODES = 0; +var LENS = 1; +var DISTS = 2; + +/* Public constants ==========================================================*/ +/* ===========================================================================*/ + + +/* Allowed flush values; see deflate() and inflate() below for details */ +//var Z_NO_FLUSH = 0; +//var Z_PARTIAL_FLUSH = 1; +//var Z_SYNC_FLUSH = 2; +//var Z_FULL_FLUSH = 3; +var Z_FINISH = 4; +var Z_BLOCK = 5; +var Z_TREES = 6; + + +/* Return codes for the compression/decompression functions. Negative values + * are errors, positive values are used for special but normal events. + */ +var Z_OK = 0; +var Z_STREAM_END = 1; +var Z_NEED_DICT = 2; +//var Z_ERRNO = -1; +var Z_STREAM_ERROR = -2; +var Z_DATA_ERROR = -3; +var Z_MEM_ERROR = -4; +var Z_BUF_ERROR = -5; +//var Z_VERSION_ERROR = -6; + +/* The deflate compression method */ +var Z_DEFLATED = 8; + + +/* STATES ====================================================================*/ +/* ===========================================================================*/ + + +var HEAD = 1; /* i: waiting for magic header */ +var FLAGS = 2; /* i: waiting for method and flags (gzip) */ +var TIME = 3; /* i: waiting for modification time (gzip) */ +var OS = 4; /* i: waiting for extra flags and operating system (gzip) */ +var EXLEN = 5; /* i: waiting for extra length (gzip) */ +var EXTRA = 6; /* i: waiting for extra bytes (gzip) */ +var NAME = 7; /* i: waiting for end of file name (gzip) */ +var COMMENT = 8; /* i: waiting for end of comment (gzip) */ +var HCRC = 9; /* i: waiting for header crc (gzip) */ +var DICTID = 10; /* i: waiting for dictionary check value */ +var DICT = 11; /* waiting for inflateSetDictionary() call */ +var TYPE = 12; /* i: waiting for type bits, including last-flag bit */ +var TYPEDO = 13; /* i: same, but skip check to exit inflate on new block */ +var STORED = 14; /* i: waiting for stored size (length and complement) */ +var COPY_ = 15; /* i/o: same as COPY below, but only first time in */ +var COPY = 16; /* i/o: waiting for input or output to copy stored block */ +var TABLE = 17; /* i: waiting for dynamic block table lengths */ +var LENLENS = 18; /* i: waiting for code length code lengths */ +var CODELENS = 19; /* i: waiting for length/lit and distance code lengths */ +var LEN_ = 20; /* i: same as LEN below, but only first time in */ +var LEN = 21; /* i: waiting for length/lit/eob code */ +var LENEXT = 22; /* i: waiting for length extra bits */ +var DIST = 23; /* i: waiting for distance code */ +var DISTEXT = 24; /* i: waiting for distance extra bits */ +var MATCH = 25; /* o: waiting for output space to copy string */ +var LIT = 26; /* o: waiting for output space to write literal */ +var CHECK = 27; /* i: waiting for 32-bit check value */ +var LENGTH = 28; /* i: waiting for 32-bit length (gzip) */ +var DONE = 29; /* finished check, done -- remain here until reset */ +var BAD = 30; /* got a data error -- remain here until reset */ +var MEM = 31; /* got an inflate() memory error -- remain here until reset */ +var SYNC = 32; /* looking for synchronization bytes to restart inflate() */ + +/* ===========================================================================*/ + + + +var ENOUGH_LENS = 852; +var ENOUGH_DISTS = 592; +//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS); + +var MAX_WBITS = 15; +/* 32K LZ77 window */ +var DEF_WBITS = MAX_WBITS; + + +function zswap32(q) { + return (((q >>> 24) & 0xff) + + ((q >>> 8) & 0xff00) + + ((q & 0xff00) << 8) + + ((q & 0xff) << 24)); +} + + +function InflateState() { + this.mode = 0; /* current inflate mode */ + this.last = false; /* true if processing last block */ + this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */ + this.havedict = false; /* true if dictionary provided */ + this.flags = 0; /* gzip header method and flags (0 if zlib) */ + this.dmax = 0; /* zlib header max distance (INFLATE_STRICT) */ + this.check = 0; /* protected copy of check value */ + this.total = 0; /* protected copy of output count */ + // TODO: may be {} + this.head = null; /* where to save gzip header information */ + + /* sliding window */ + this.wbits = 0; /* log base 2 of requested window size */ + this.wsize = 0; /* window size or zero if not using window */ + this.whave = 0; /* valid bytes in the window */ + this.wnext = 0; /* window write index */ + this.window = null; /* allocated sliding window, if needed */ + + /* bit accumulator */ + this.hold = 0; /* input bit accumulator */ + this.bits = 0; /* number of bits in "in" */ + + /* for string and stored block copying */ + this.length = 0; /* literal or length of data to copy */ + this.offset = 0; /* distance back to copy string from */ + + /* for table and code decoding */ + this.extra = 0; /* extra bits needed */ + + /* fixed and dynamic code tables */ + this.lencode = null; /* starting table for length/literal codes */ + this.distcode = null; /* starting table for distance codes */ + this.lenbits = 0; /* index bits for lencode */ + this.distbits = 0; /* index bits for distcode */ + + /* dynamic table building */ + this.ncode = 0; /* number of code length code lengths */ + this.nlen = 0; /* number of length code lengths */ + this.ndist = 0; /* number of distance code lengths */ + this.have = 0; /* number of code lengths in lens[] */ + this.next = null; /* next available space in codes[] */ + + this.lens = new utils.Buf16(320); /* temporary storage for code lengths */ + this.work = new utils.Buf16(288); /* work area for code table building */ + + /* + because we don't have pointers in js, we use lencode and distcode directly + as buffers so we don't need codes + */ + //this.codes = new utils.Buf32(ENOUGH); /* space for code tables */ + this.lendyn = null; /* dynamic table for length/literal codes (JS specific) */ + this.distdyn = null; /* dynamic table for distance codes (JS specific) */ + this.sane = 0; /* if false, allow invalid distance too far */ + this.back = 0; /* bits back of last unprocessed length/lit */ + this.was = 0; /* initial length of match */ +} + +function inflateResetKeep(strm) { + var state; + + if (!strm || !strm.state) { return Z_STREAM_ERROR; } + state = strm.state; + strm.total_in = strm.total_out = state.total = 0; + strm.msg = ''; /*Z_NULL*/ + if (state.wrap) { /* to support ill-conceived Java test suite */ + strm.adler = state.wrap & 1; + } + state.mode = HEAD; + state.last = 0; + state.havedict = 0; + state.dmax = 32768; + state.head = null/*Z_NULL*/; + state.hold = 0; + state.bits = 0; + //state.lencode = state.distcode = state.next = state.codes; + state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS); + state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS); + + state.sane = 1; + state.back = -1; + //Tracev((stderr, "inflate: reset\n")); + return Z_OK; +} + +function inflateReset(strm) { + var state; + + if (!strm || !strm.state) { return Z_STREAM_ERROR; } + state = strm.state; + state.wsize = 0; + state.whave = 0; + state.wnext = 0; + return inflateResetKeep(strm); + +} + +function inflateReset2(strm, windowBits) { + var wrap; + var state; + + /* get the state */ + if (!strm || !strm.state) { return Z_STREAM_ERROR; } + state = strm.state; + + /* extract wrap request from windowBits parameter */ + if (windowBits < 0) { + wrap = 0; + windowBits = -windowBits; + } + else { + wrap = (windowBits >> 4) + 1; + if (windowBits < 48) { + windowBits &= 15; + } + } + + /* set number of window bits, free window if different */ + if (windowBits && (windowBits < 8 || windowBits > 15)) { + return Z_STREAM_ERROR; + } + if (state.window !== null && state.wbits !== windowBits) { + state.window = null; + } + + /* update state and reset the rest of it */ + state.wrap = wrap; + state.wbits = windowBits; + return inflateReset(strm); +} + +function inflateInit2(strm, windowBits) { + var ret; + var state; + + if (!strm) { return Z_STREAM_ERROR; } + //strm.msg = Z_NULL; /* in case we return an error */ + + state = new InflateState(); + + //if (state === Z_NULL) return Z_MEM_ERROR; + //Tracev((stderr, "inflate: allocated\n")); + strm.state = state; + state.window = null/*Z_NULL*/; + ret = inflateReset2(strm, windowBits); + if (ret !== Z_OK) { + strm.state = null/*Z_NULL*/; + } + return ret; +} + +function inflateInit(strm) { + return inflateInit2(strm, DEF_WBITS); +} + + +/* + Return state with length and distance decoding tables and index sizes set to + fixed code decoding. Normally this returns fixed tables from inffixed.h. + If BUILDFIXED is defined, then instead this routine builds the tables the + first time it's called, and returns those tables the first time and + thereafter. This reduces the size of the code by about 2K bytes, in + exchange for a little execution time. However, BUILDFIXED should not be + used for threaded applications, since the rewriting of the tables and virgin + may not be thread-safe. + */ +var virgin = true; + +var lenfix, distfix; // We have no pointers in JS, so keep tables separate + +function fixedtables(state) { + /* build fixed huffman tables if first call (may not be thread safe) */ + if (virgin) { + var sym; + + lenfix = new utils.Buf32(512); + distfix = new utils.Buf32(32); + + /* literal/length table */ + sym = 0; + while (sym < 144) { state.lens[sym++] = 8; } + while (sym < 256) { state.lens[sym++] = 9; } + while (sym < 280) { state.lens[sym++] = 7; } + while (sym < 288) { state.lens[sym++] = 8; } + + inflate_table(LENS, state.lens, 0, 288, lenfix, 0, state.work, { bits: 9 }); + + /* distance table */ + sym = 0; + while (sym < 32) { state.lens[sym++] = 5; } + + inflate_table(DISTS, state.lens, 0, 32, distfix, 0, state.work, { bits: 5 }); + + /* do this just once */ + virgin = false; + } + + state.lencode = lenfix; + state.lenbits = 9; + state.distcode = distfix; + state.distbits = 5; +} + + +/* + Update the window with the last wsize (normally 32K) bytes written before + returning. If window does not exist yet, create it. This is only called + when a window is already in use, or when output has been written during this + inflate call, but the end of the deflate stream has not been reached yet. + It is also called to create a window for dictionary data when a dictionary + is loaded. + + Providing output buffers larger than 32K to inflate() should provide a speed + advantage, since only the last 32K of output is copied to the sliding window + upon return from inflate(), and since all distances after the first 32K of + output will fall in the output data, making match copies simpler and faster. + The advantage may be dependent on the size of the processor's data caches. + */ +function updatewindow(strm, src, end, copy) { + var dist; + var state = strm.state; + + /* if it hasn't been done already, allocate space for the window */ + if (state.window === null) { + state.wsize = 1 << state.wbits; + state.wnext = 0; + state.whave = 0; + + state.window = new utils.Buf8(state.wsize); + } + + /* copy state->wsize or less output bytes into the circular window */ + if (copy >= state.wsize) { + utils.arraySet(state.window, src, end - state.wsize, state.wsize, 0); + state.wnext = 0; + state.whave = state.wsize; + } + else { + dist = state.wsize - state.wnext; + if (dist > copy) { + dist = copy; + } + //zmemcpy(state->window + state->wnext, end - copy, dist); + utils.arraySet(state.window, src, end - copy, dist, state.wnext); + copy -= dist; + if (copy) { + //zmemcpy(state->window, end - copy, copy); + utils.arraySet(state.window, src, end - copy, copy, 0); + state.wnext = copy; + state.whave = state.wsize; + } + else { + state.wnext += dist; + if (state.wnext === state.wsize) { state.wnext = 0; } + if (state.whave < state.wsize) { state.whave += dist; } + } + } + return 0; +} + +function inflate(strm, flush) { + var state; + var input, output; // input/output buffers + var next; /* next input INDEX */ + var put; /* next output INDEX */ + var have, left; /* available input and output */ + var hold; /* bit buffer */ + var bits; /* bits in bit buffer */ + var _in, _out; /* save starting available input and output */ + var copy; /* number of stored or match bytes to copy */ + var from; /* where to copy match bytes from */ + var from_source; + var here = 0; /* current decoding table entry */ + var here_bits, here_op, here_val; // paked "here" denormalized (JS specific) + //var last; /* parent table entry */ + var last_bits, last_op, last_val; // paked "last" denormalized (JS specific) + var len; /* length to copy for repeats, bits to drop */ + var ret; /* return code */ + var hbuf = new utils.Buf8(4); /* buffer for gzip header crc calculation */ + var opts; + + var n; // temporary var for NEED_BITS + + var order = /* permutation of code lengths */ + [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ]; + + + if (!strm || !strm.state || !strm.output || + (!strm.input && strm.avail_in !== 0)) { + return Z_STREAM_ERROR; + } + + state = strm.state; + if (state.mode === TYPE) { state.mode = TYPEDO; } /* skip check */ + + + //--- LOAD() --- + put = strm.next_out; + output = strm.output; + left = strm.avail_out; + next = strm.next_in; + input = strm.input; + have = strm.avail_in; + hold = state.hold; + bits = state.bits; + //--- + + _in = have; + _out = left; + ret = Z_OK; + + inf_leave: // goto emulation + for (;;) { + switch (state.mode) { + case HEAD: + if (state.wrap === 0) { + state.mode = TYPEDO; + break; + } + //=== NEEDBITS(16); + while (bits < 16) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if ((state.wrap & 2) && hold === 0x8b1f) { /* gzip header */ + state.check = 0/*crc32(0L, Z_NULL, 0)*/; + //=== CRC2(state.check, hold); + hbuf[0] = hold & 0xff; + hbuf[1] = (hold >>> 8) & 0xff; + state.check = crc32(state.check, hbuf, 2, 0); + //===// + + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = FLAGS; + break; + } + state.flags = 0; /* expect zlib header */ + if (state.head) { + state.head.done = false; + } + if (!(state.wrap & 1) || /* check if zlib header allowed */ + (((hold & 0xff)/*BITS(8)*/ << 8) + (hold >> 8)) % 31) { + strm.msg = 'incorrect header check'; + state.mode = BAD; + break; + } + if ((hold & 0x0f)/*BITS(4)*/ !== Z_DEFLATED) { + strm.msg = 'unknown compression method'; + state.mode = BAD; + break; + } + //--- DROPBITS(4) ---// + hold >>>= 4; + bits -= 4; + //---// + len = (hold & 0x0f)/*BITS(4)*/ + 8; + if (state.wbits === 0) { + state.wbits = len; + } + else if (len > state.wbits) { + strm.msg = 'invalid window size'; + state.mode = BAD; + break; + } + state.dmax = 1 << len; + //Tracev((stderr, "inflate: zlib header ok\n")); + strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/; + state.mode = hold & 0x200 ? DICTID : TYPE; + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + break; + case FLAGS: + //=== NEEDBITS(16); */ + while (bits < 16) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.flags = hold; + if ((state.flags & 0xff) !== Z_DEFLATED) { + strm.msg = 'unknown compression method'; + state.mode = BAD; + break; + } + if (state.flags & 0xe000) { + strm.msg = 'unknown header flags set'; + state.mode = BAD; + break; + } + if (state.head) { + state.head.text = ((hold >> 8) & 1); + } + if (state.flags & 0x0200) { + //=== CRC2(state.check, hold); + hbuf[0] = hold & 0xff; + hbuf[1] = (hold >>> 8) & 0xff; + state.check = crc32(state.check, hbuf, 2, 0); + //===// + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = TIME; + /* falls through */ + case TIME: + //=== NEEDBITS(32); */ + while (bits < 32) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if (state.head) { + state.head.time = hold; + } + if (state.flags & 0x0200) { + //=== CRC4(state.check, hold) + hbuf[0] = hold & 0xff; + hbuf[1] = (hold >>> 8) & 0xff; + hbuf[2] = (hold >>> 16) & 0xff; + hbuf[3] = (hold >>> 24) & 0xff; + state.check = crc32(state.check, hbuf, 4, 0); + //=== + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = OS; + /* falls through */ + case OS: + //=== NEEDBITS(16); */ + while (bits < 16) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if (state.head) { + state.head.xflags = (hold & 0xff); + state.head.os = (hold >> 8); + } + if (state.flags & 0x0200) { + //=== CRC2(state.check, hold); + hbuf[0] = hold & 0xff; + hbuf[1] = (hold >>> 8) & 0xff; + state.check = crc32(state.check, hbuf, 2, 0); + //===// + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = EXLEN; + /* falls through */ + case EXLEN: + if (state.flags & 0x0400) { + //=== NEEDBITS(16); */ + while (bits < 16) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.length = hold; + if (state.head) { + state.head.extra_len = hold; + } + if (state.flags & 0x0200) { + //=== CRC2(state.check, hold); + hbuf[0] = hold & 0xff; + hbuf[1] = (hold >>> 8) & 0xff; + state.check = crc32(state.check, hbuf, 2, 0); + //===// + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + } + else if (state.head) { + state.head.extra = null/*Z_NULL*/; + } + state.mode = EXTRA; + /* falls through */ + case EXTRA: + if (state.flags & 0x0400) { + copy = state.length; + if (copy > have) { copy = have; } + if (copy) { + if (state.head) { + len = state.head.extra_len - state.length; + if (!state.head.extra) { + // Use untyped array for more convenient processing later + state.head.extra = new Array(state.head.extra_len); + } + utils.arraySet( + state.head.extra, + input, + next, + // extra field is limited to 65536 bytes + // - no need for additional size check + copy, + /*len + copy > state.head.extra_max - len ? state.head.extra_max : copy,*/ + len + ); + //zmemcpy(state.head.extra + len, next, + // len + copy > state.head.extra_max ? + // state.head.extra_max - len : copy); + } + if (state.flags & 0x0200) { + state.check = crc32(state.check, input, copy, next); + } + have -= copy; + next += copy; + state.length -= copy; + } + if (state.length) { break inf_leave; } + } + state.length = 0; + state.mode = NAME; + /* falls through */ + case NAME: + if (state.flags & 0x0800) { + if (have === 0) { break inf_leave; } + copy = 0; + do { + // TODO: 2 or 1 bytes? + len = input[next + copy++]; + /* use constant limit because in js we should not preallocate memory */ + if (state.head && len && + (state.length < 65536 /*state.head.name_max*/)) { + state.head.name += String.fromCharCode(len); + } + } while (len && copy < have); + + if (state.flags & 0x0200) { + state.check = crc32(state.check, input, copy, next); + } + have -= copy; + next += copy; + if (len) { break inf_leave; } + } + else if (state.head) { + state.head.name = null; + } + state.length = 0; + state.mode = COMMENT; + /* falls through */ + case COMMENT: + if (state.flags & 0x1000) { + if (have === 0) { break inf_leave; } + copy = 0; + do { + len = input[next + copy++]; + /* use constant limit because in js we should not preallocate memory */ + if (state.head && len && + (state.length < 65536 /*state.head.comm_max*/)) { + state.head.comment += String.fromCharCode(len); + } + } while (len && copy < have); + if (state.flags & 0x0200) { + state.check = crc32(state.check, input, copy, next); + } + have -= copy; + next += copy; + if (len) { break inf_leave; } + } + else if (state.head) { + state.head.comment = null; + } + state.mode = HCRC; + /* falls through */ + case HCRC: + if (state.flags & 0x0200) { + //=== NEEDBITS(16); */ + while (bits < 16) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if (hold !== (state.check & 0xffff)) { + strm.msg = 'header crc mismatch'; + state.mode = BAD; + break; + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + } + if (state.head) { + state.head.hcrc = ((state.flags >> 9) & 1); + state.head.done = true; + } + strm.adler = state.check = 0; + state.mode = TYPE; + break; + case DICTID: + //=== NEEDBITS(32); */ + while (bits < 32) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + strm.adler = state.check = zswap32(hold); + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = DICT; + /* falls through */ + case DICT: + if (state.havedict === 0) { + //--- RESTORE() --- + strm.next_out = put; + strm.avail_out = left; + strm.next_in = next; + strm.avail_in = have; + state.hold = hold; + state.bits = bits; + //--- + return Z_NEED_DICT; + } + strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/; + state.mode = TYPE; + /* falls through */ + case TYPE: + if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; } + /* falls through */ + case TYPEDO: + if (state.last) { + //--- BYTEBITS() ---// + hold >>>= bits & 7; + bits -= bits & 7; + //---// + state.mode = CHECK; + break; + } + //=== NEEDBITS(3); */ + while (bits < 3) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.last = (hold & 0x01)/*BITS(1)*/; + //--- DROPBITS(1) ---// + hold >>>= 1; + bits -= 1; + //---// + + switch ((hold & 0x03)/*BITS(2)*/) { + case 0: /* stored block */ + //Tracev((stderr, "inflate: stored block%s\n", + // state.last ? " (last)" : "")); + state.mode = STORED; + break; + case 1: /* fixed block */ + fixedtables(state); + //Tracev((stderr, "inflate: fixed codes block%s\n", + // state.last ? " (last)" : "")); + state.mode = LEN_; /* decode codes */ + if (flush === Z_TREES) { + //--- DROPBITS(2) ---// + hold >>>= 2; + bits -= 2; + //---// + break inf_leave; + } + break; + case 2: /* dynamic block */ + //Tracev((stderr, "inflate: dynamic codes block%s\n", + // state.last ? " (last)" : "")); + state.mode = TABLE; + break; + case 3: + strm.msg = 'invalid block type'; + state.mode = BAD; + } + //--- DROPBITS(2) ---// + hold >>>= 2; + bits -= 2; + //---// + break; + case STORED: + //--- BYTEBITS() ---// /* go to byte boundary */ + hold >>>= bits & 7; + bits -= bits & 7; + //---// + //=== NEEDBITS(32); */ + while (bits < 32) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) { + strm.msg = 'invalid stored block lengths'; + state.mode = BAD; + break; + } + state.length = hold & 0xffff; + //Tracev((stderr, "inflate: stored length %u\n", + // state.length)); + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + state.mode = COPY_; + if (flush === Z_TREES) { break inf_leave; } + /* falls through */ + case COPY_: + state.mode = COPY; + /* falls through */ + case COPY: + copy = state.length; + if (copy) { + if (copy > have) { copy = have; } + if (copy > left) { copy = left; } + if (copy === 0) { break inf_leave; } + //--- zmemcpy(put, next, copy); --- + utils.arraySet(output, input, next, copy, put); + //---// + have -= copy; + next += copy; + left -= copy; + put += copy; + state.length -= copy; + break; + } + //Tracev((stderr, "inflate: stored end\n")); + state.mode = TYPE; + break; + case TABLE: + //=== NEEDBITS(14); */ + while (bits < 14) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.nlen = (hold & 0x1f)/*BITS(5)*/ + 257; + //--- DROPBITS(5) ---// + hold >>>= 5; + bits -= 5; + //---// + state.ndist = (hold & 0x1f)/*BITS(5)*/ + 1; + //--- DROPBITS(5) ---// + hold >>>= 5; + bits -= 5; + //---// + state.ncode = (hold & 0x0f)/*BITS(4)*/ + 4; + //--- DROPBITS(4) ---// + hold >>>= 4; + bits -= 4; + //---// +//#ifndef PKZIP_BUG_WORKAROUND + if (state.nlen > 286 || state.ndist > 30) { + strm.msg = 'too many length or distance symbols'; + state.mode = BAD; + break; + } +//#endif + //Tracev((stderr, "inflate: table sizes ok\n")); + state.have = 0; + state.mode = LENLENS; + /* falls through */ + case LENLENS: + while (state.have < state.ncode) { + //=== NEEDBITS(3); + while (bits < 3) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.lens[order[state.have++]] = (hold & 0x07);//BITS(3); + //--- DROPBITS(3) ---// + hold >>>= 3; + bits -= 3; + //---// + } + while (state.have < 19) { + state.lens[order[state.have++]] = 0; + } + // We have separate tables & no pointers. 2 commented lines below not needed. + //state.next = state.codes; + //state.lencode = state.next; + // Switch to use dynamic table + state.lencode = state.lendyn; + state.lenbits = 7; + + opts = { bits: state.lenbits }; + ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts); + state.lenbits = opts.bits; + + if (ret) { + strm.msg = 'invalid code lengths set'; + state.mode = BAD; + break; + } + //Tracev((stderr, "inflate: code lengths ok\n")); + state.have = 0; + state.mode = CODELENS; + /* falls through */ + case CODELENS: + while (state.have < state.nlen + state.ndist) { + for (;;) { + here = state.lencode[hold & ((1 << state.lenbits) - 1)];/*BITS(state.lenbits)*/ + here_bits = here >>> 24; + here_op = (here >>> 16) & 0xff; + here_val = here & 0xffff; + + if ((here_bits) <= bits) { break; } + //--- PULLBYTE() ---// + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + //---// + } + if (here_val < 16) { + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + state.lens[state.have++] = here_val; + } + else { + if (here_val === 16) { + //=== NEEDBITS(here.bits + 2); + n = here_bits + 2; + while (bits < n) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + if (state.have === 0) { + strm.msg = 'invalid bit length repeat'; + state.mode = BAD; + break; + } + len = state.lens[state.have - 1]; + copy = 3 + (hold & 0x03);//BITS(2); + //--- DROPBITS(2) ---// + hold >>>= 2; + bits -= 2; + //---// + } + else if (here_val === 17) { + //=== NEEDBITS(here.bits + 3); + n = here_bits + 3; + while (bits < n) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + len = 0; + copy = 3 + (hold & 0x07);//BITS(3); + //--- DROPBITS(3) ---// + hold >>>= 3; + bits -= 3; + //---// + } + else { + //=== NEEDBITS(here.bits + 7); + n = here_bits + 7; + while (bits < n) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + len = 0; + copy = 11 + (hold & 0x7f);//BITS(7); + //--- DROPBITS(7) ---// + hold >>>= 7; + bits -= 7; + //---// + } + if (state.have + copy > state.nlen + state.ndist) { + strm.msg = 'invalid bit length repeat'; + state.mode = BAD; + break; + } + while (copy--) { + state.lens[state.have++] = len; + } + } + } + + /* handle error breaks in while */ + if (state.mode === BAD) { break; } + + /* check for end-of-block code (better have one) */ + if (state.lens[256] === 0) { + strm.msg = 'invalid code -- missing end-of-block'; + state.mode = BAD; + break; + } + + /* build code tables -- note: do not change the lenbits or distbits + values here (9 and 6) without reading the comments in inftrees.h + concerning the ENOUGH constants, which depend on those values */ + state.lenbits = 9; + + opts = { bits: state.lenbits }; + ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts); + // We have separate tables & no pointers. 2 commented lines below not needed. + // state.next_index = opts.table_index; + state.lenbits = opts.bits; + // state.lencode = state.next; + + if (ret) { + strm.msg = 'invalid literal/lengths set'; + state.mode = BAD; + break; + } + + state.distbits = 6; + //state.distcode.copy(state.codes); + // Switch to use dynamic table + state.distcode = state.distdyn; + opts = { bits: state.distbits }; + ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts); + // We have separate tables & no pointers. 2 commented lines below not needed. + // state.next_index = opts.table_index; + state.distbits = opts.bits; + // state.distcode = state.next; + + if (ret) { + strm.msg = 'invalid distances set'; + state.mode = BAD; + break; + } + //Tracev((stderr, 'inflate: codes ok\n')); + state.mode = LEN_; + if (flush === Z_TREES) { break inf_leave; } + /* falls through */ + case LEN_: + state.mode = LEN; + /* falls through */ + case LEN: + if (have >= 6 && left >= 258) { + //--- RESTORE() --- + strm.next_out = put; + strm.avail_out = left; + strm.next_in = next; + strm.avail_in = have; + state.hold = hold; + state.bits = bits; + //--- + inflate_fast(strm, _out); + //--- LOAD() --- + put = strm.next_out; + output = strm.output; + left = strm.avail_out; + next = strm.next_in; + input = strm.input; + have = strm.avail_in; + hold = state.hold; + bits = state.bits; + //--- + + if (state.mode === TYPE) { + state.back = -1; + } + break; + } + state.back = 0; + for (;;) { + here = state.lencode[hold & ((1 << state.lenbits) - 1)]; /*BITS(state.lenbits)*/ + here_bits = here >>> 24; + here_op = (here >>> 16) & 0xff; + here_val = here & 0xffff; + + if (here_bits <= bits) { break; } + //--- PULLBYTE() ---// + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + //---// + } + if (here_op && (here_op & 0xf0) === 0) { + last_bits = here_bits; + last_op = here_op; + last_val = here_val; + for (;;) { + here = state.lencode[last_val + + ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)]; + here_bits = here >>> 24; + here_op = (here >>> 16) & 0xff; + here_val = here & 0xffff; + + if ((last_bits + here_bits) <= bits) { break; } + //--- PULLBYTE() ---// + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + //---// + } + //--- DROPBITS(last.bits) ---// + hold >>>= last_bits; + bits -= last_bits; + //---// + state.back += last_bits; + } + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + state.back += here_bits; + state.length = here_val; + if (here_op === 0) { + //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? + // "inflate: literal '%c'\n" : + // "inflate: literal 0x%02x\n", here.val)); + state.mode = LIT; + break; + } + if (here_op & 32) { + //Tracevv((stderr, "inflate: end of block\n")); + state.back = -1; + state.mode = TYPE; + break; + } + if (here_op & 64) { + strm.msg = 'invalid literal/length code'; + state.mode = BAD; + break; + } + state.extra = here_op & 15; + state.mode = LENEXT; + /* falls through */ + case LENEXT: + if (state.extra) { + //=== NEEDBITS(state.extra); + n = state.extra; + while (bits < n) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.length += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/; + //--- DROPBITS(state.extra) ---// + hold >>>= state.extra; + bits -= state.extra; + //---// + state.back += state.extra; + } + //Tracevv((stderr, "inflate: length %u\n", state.length)); + state.was = state.length; + state.mode = DIST; + /* falls through */ + case DIST: + for (;;) { + here = state.distcode[hold & ((1 << state.distbits) - 1)];/*BITS(state.distbits)*/ + here_bits = here >>> 24; + here_op = (here >>> 16) & 0xff; + here_val = here & 0xffff; + + if ((here_bits) <= bits) { break; } + //--- PULLBYTE() ---// + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + //---// + } + if ((here_op & 0xf0) === 0) { + last_bits = here_bits; + last_op = here_op; + last_val = here_val; + for (;;) { + here = state.distcode[last_val + + ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)]; + here_bits = here >>> 24; + here_op = (here >>> 16) & 0xff; + here_val = here & 0xffff; + + if ((last_bits + here_bits) <= bits) { break; } + //--- PULLBYTE() ---// + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + //---// + } + //--- DROPBITS(last.bits) ---// + hold >>>= last_bits; + bits -= last_bits; + //---// + state.back += last_bits; + } + //--- DROPBITS(here.bits) ---// + hold >>>= here_bits; + bits -= here_bits; + //---// + state.back += here_bits; + if (here_op & 64) { + strm.msg = 'invalid distance code'; + state.mode = BAD; + break; + } + state.offset = here_val; + state.extra = (here_op) & 15; + state.mode = DISTEXT; + /* falls through */ + case DISTEXT: + if (state.extra) { + //=== NEEDBITS(state.extra); + n = state.extra; + while (bits < n) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + state.offset += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/; + //--- DROPBITS(state.extra) ---// + hold >>>= state.extra; + bits -= state.extra; + //---// + state.back += state.extra; + } +//#ifdef INFLATE_STRICT + if (state.offset > state.dmax) { + strm.msg = 'invalid distance too far back'; + state.mode = BAD; + break; + } +//#endif + //Tracevv((stderr, "inflate: distance %u\n", state.offset)); + state.mode = MATCH; + /* falls through */ + case MATCH: + if (left === 0) { break inf_leave; } + copy = _out - left; + if (state.offset > copy) { /* copy from window */ + copy = state.offset - copy; + if (copy > state.whave) { + if (state.sane) { + strm.msg = 'invalid distance too far back'; + state.mode = BAD; + break; + } +// (!) This block is disabled in zlib defaults, +// don't enable it for binary compatibility +//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR +// Trace((stderr, "inflate.c too far\n")); +// copy -= state.whave; +// if (copy > state.length) { copy = state.length; } +// if (copy > left) { copy = left; } +// left -= copy; +// state.length -= copy; +// do { +// output[put++] = 0; +// } while (--copy); +// if (state.length === 0) { state.mode = LEN; } +// break; +//#endif + } + if (copy > state.wnext) { + copy -= state.wnext; + from = state.wsize - copy; + } + else { + from = state.wnext - copy; + } + if (copy > state.length) { copy = state.length; } + from_source = state.window; + } + else { /* copy from output */ + from_source = output; + from = put - state.offset; + copy = state.length; + } + if (copy > left) { copy = left; } + left -= copy; + state.length -= copy; + do { + output[put++] = from_source[from++]; + } while (--copy); + if (state.length === 0) { state.mode = LEN; } + break; + case LIT: + if (left === 0) { break inf_leave; } + output[put++] = state.length; + left--; + state.mode = LEN; + break; + case CHECK: + if (state.wrap) { + //=== NEEDBITS(32); + while (bits < 32) { + if (have === 0) { break inf_leave; } + have--; + // Use '|' instead of '+' to make sure that result is signed + hold |= input[next++] << bits; + bits += 8; + } + //===// + _out -= left; + strm.total_out += _out; + state.total += _out; + if (_out) { + strm.adler = state.check = + /*UPDATE(state.check, put - _out, _out);*/ + (state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out)); + + } + _out = left; + // NB: crc32 stored as signed 32-bit int, zswap32 returns signed too + if ((state.flags ? hold : zswap32(hold)) !== state.check) { + strm.msg = 'incorrect data check'; + state.mode = BAD; + break; + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + //Tracev((stderr, "inflate: check matches trailer\n")); + } + state.mode = LENGTH; + /* falls through */ + case LENGTH: + if (state.wrap && state.flags) { + //=== NEEDBITS(32); + while (bits < 32) { + if (have === 0) { break inf_leave; } + have--; + hold += input[next++] << bits; + bits += 8; + } + //===// + if (hold !== (state.total & 0xffffffff)) { + strm.msg = 'incorrect length check'; + state.mode = BAD; + break; + } + //=== INITBITS(); + hold = 0; + bits = 0; + //===// + //Tracev((stderr, "inflate: length matches trailer\n")); + } + state.mode = DONE; + /* falls through */ + case DONE: + ret = Z_STREAM_END; + break inf_leave; + case BAD: + ret = Z_DATA_ERROR; + break inf_leave; + case MEM: + return Z_MEM_ERROR; + case SYNC: + /* falls through */ + default: + return Z_STREAM_ERROR; + } + } + + // inf_leave <- here is real place for "goto inf_leave", emulated via "break inf_leave" + + /* + Return from inflate(), updating the total counts and the check value. + If there was no progress during the inflate() call, return a buffer + error. Call updatewindow() to create and/or update the window state. + Note: a memory error from inflate() is non-recoverable. + */ + + //--- RESTORE() --- + strm.next_out = put; + strm.avail_out = left; + strm.next_in = next; + strm.avail_in = have; + state.hold = hold; + state.bits = bits; + //--- + + if (state.wsize || (_out !== strm.avail_out && state.mode < BAD && + (state.mode < CHECK || flush !== Z_FINISH))) { + if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) { + state.mode = MEM; + return Z_MEM_ERROR; + } + } + _in -= strm.avail_in; + _out -= strm.avail_out; + strm.total_in += _in; + strm.total_out += _out; + state.total += _out; + if (state.wrap && _out) { + strm.adler = state.check = /*UPDATE(state.check, strm.next_out - _out, _out);*/ + (state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out)); + } + strm.data_type = state.bits + (state.last ? 64 : 0) + + (state.mode === TYPE ? 128 : 0) + + (state.mode === LEN_ || state.mode === COPY_ ? 256 : 0); + if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) { + ret = Z_BUF_ERROR; + } + return ret; +} + +function inflateEnd(strm) { + + if (!strm || !strm.state /*|| strm->zfree == (free_func)0*/) { + return Z_STREAM_ERROR; + } + + var state = strm.state; + if (state.window) { + state.window = null; + } + strm.state = null; + return Z_OK; +} + +function inflateGetHeader(strm, head) { + var state; + + /* check state */ + if (!strm || !strm.state) { return Z_STREAM_ERROR; } + state = strm.state; + if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; } + + /* save header structure */ + state.head = head; + head.done = false; + return Z_OK; +} + +function inflateSetDictionary(strm, dictionary) { + var dictLength = dictionary.length; + + var state; + var dictid; + var ret; + + /* check state */ + if (!strm /* == Z_NULL */ || !strm.state /* == Z_NULL */) { return Z_STREAM_ERROR; } + state = strm.state; + + if (state.wrap !== 0 && state.mode !== DICT) { + return Z_STREAM_ERROR; + } + + /* check for correct dictionary identifier */ + if (state.mode === DICT) { + dictid = 1; /* adler32(0, null, 0)*/ + /* dictid = adler32(dictid, dictionary, dictLength); */ + dictid = adler32(dictid, dictionary, dictLength, 0); + if (dictid !== state.check) { + return Z_DATA_ERROR; + } + } + /* copy dictionary to window using updatewindow(), which will amend the + existing dictionary if appropriate */ + ret = updatewindow(strm, dictionary, dictLength, dictLength); + if (ret) { + state.mode = MEM; + return Z_MEM_ERROR; + } + state.havedict = 1; + // Tracev((stderr, "inflate: dictionary set\n")); + return Z_OK; +} + +exports.inflateReset = inflateReset; +exports.inflateReset2 = inflateReset2; +exports.inflateResetKeep = inflateResetKeep; +exports.inflateInit = inflateInit; +exports.inflateInit2 = inflateInit2; +exports.inflate = inflate; +exports.inflateEnd = inflateEnd; +exports.inflateGetHeader = inflateGetHeader; +exports.inflateSetDictionary = inflateSetDictionary; +exports.inflateInfo = 'pako inflate (from Nodeca project)'; + +/* Not implemented +exports.inflateCopy = inflateCopy; +exports.inflateGetDictionary = inflateGetDictionary; +exports.inflateMark = inflateMark; +exports.inflatePrime = inflatePrime; +exports.inflateSync = inflateSync; +exports.inflateSyncPoint = inflateSyncPoint; +exports.inflateUndermine = inflateUndermine; +*/ + +},{"../utils/common":49,"./adler32":50,"./crc32":52,"./inffast":54,"./inftrees":56}],56:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +var utils = require('../utils/common'); + +var MAXBITS = 15; +var ENOUGH_LENS = 852; +var ENOUGH_DISTS = 592; +//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS); + +var CODES = 0; +var LENS = 1; +var DISTS = 2; + +var lbase = [ /* Length codes 257..285 base */ + 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, + 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0 +]; + +var lext = [ /* Length codes 257..285 extra */ + 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, + 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78 +]; + +var dbase = [ /* Distance codes 0..29 base */ + 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, + 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, + 8193, 12289, 16385, 24577, 0, 0 +]; + +var dext = [ /* Distance codes 0..29 extra */ + 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, + 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, + 28, 28, 29, 29, 64, 64 +]; + +module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts) +{ + var bits = opts.bits; + //here = opts.here; /* table entry for duplication */ + + var len = 0; /* a code's length in bits */ + var sym = 0; /* index of code symbols */ + var min = 0, max = 0; /* minimum and maximum code lengths */ + var root = 0; /* number of index bits for root table */ + var curr = 0; /* number of index bits for current table */ + var drop = 0; /* code bits to drop for sub-table */ + var left = 0; /* number of prefix codes available */ + var used = 0; /* code entries in table used */ + var huff = 0; /* Huffman code */ + var incr; /* for incrementing code, index */ + var fill; /* index for replicating entries */ + var low; /* low bits for current root entry */ + var mask; /* mask for low root bits */ + var next; /* next available space in table */ + var base = null; /* base value table to use */ + var base_index = 0; +// var shoextra; /* extra bits table to use */ + var end; /* use base and extra for symbol > end */ + var count = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* number of codes of each length */ + var offs = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* offsets in table for each length */ + var extra = null; + var extra_index = 0; + + var here_bits, here_op, here_val; + + /* + Process a set of code lengths to create a canonical Huffman code. The + code lengths are lens[0..codes-1]. Each length corresponds to the + symbols 0..codes-1. The Huffman code is generated by first sorting the + symbols by length from short to long, and retaining the symbol order + for codes with equal lengths. Then the code starts with all zero bits + for the first code of the shortest length, and the codes are integer + increments for the same length, and zeros are appended as the length + increases. For the deflate format, these bits are stored backwards + from their more natural integer increment ordering, and so when the + decoding tables are built in the large loop below, the integer codes + are incremented backwards. + + This routine assumes, but does not check, that all of the entries in + lens[] are in the range 0..MAXBITS. The caller must assure this. + 1..MAXBITS is interpreted as that code length. zero means that that + symbol does not occur in this code. + + The codes are sorted by computing a count of codes for each length, + creating from that a table of starting indices for each length in the + sorted table, and then entering the symbols in order in the sorted + table. The sorted table is work[], with that space being provided by + the caller. + + The length counts are used for other purposes as well, i.e. finding + the minimum and maximum length codes, determining if there are any + codes at all, checking for a valid set of lengths, and looking ahead + at length counts to determine sub-table sizes when building the + decoding tables. + */ + + /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ + for (len = 0; len <= MAXBITS; len++) { + count[len] = 0; + } + for (sym = 0; sym < codes; sym++) { + count[lens[lens_index + sym]]++; + } + + /* bound code lengths, force root to be within code lengths */ + root = bits; + for (max = MAXBITS; max >= 1; max--) { + if (count[max] !== 0) { break; } + } + if (root > max) { + root = max; + } + if (max === 0) { /* no symbols to code at all */ + //table.op[opts.table_index] = 64; //here.op = (var char)64; /* invalid code marker */ + //table.bits[opts.table_index] = 1; //here.bits = (var char)1; + //table.val[opts.table_index++] = 0; //here.val = (var short)0; + table[table_index++] = (1 << 24) | (64 << 16) | 0; + + + //table.op[opts.table_index] = 64; + //table.bits[opts.table_index] = 1; + //table.val[opts.table_index++] = 0; + table[table_index++] = (1 << 24) | (64 << 16) | 0; + + opts.bits = 1; + return 0; /* no symbols, but wait for decoding to report error */ + } + for (min = 1; min < max; min++) { + if (count[min] !== 0) { break; } + } + if (root < min) { + root = min; + } + + /* check for an over-subscribed or incomplete set of lengths */ + left = 1; + for (len = 1; len <= MAXBITS; len++) { + left <<= 1; + left -= count[len]; + if (left < 0) { + return -1; + } /* over-subscribed */ + } + if (left > 0 && (type === CODES || max !== 1)) { + return -1; /* incomplete set */ + } + + /* generate offsets into symbol table for each length for sorting */ + offs[1] = 0; + for (len = 1; len < MAXBITS; len++) { + offs[len + 1] = offs[len] + count[len]; + } + + /* sort symbols by length, by symbol order within each length */ + for (sym = 0; sym < codes; sym++) { + if (lens[lens_index + sym] !== 0) { + work[offs[lens[lens_index + sym]]++] = sym; + } + } + + /* + Create and fill in decoding tables. In this loop, the table being + filled is at next and has curr index bits. The code being used is huff + with length len. That code is converted to an index by dropping drop + bits off of the bottom. For codes where len is less than drop + curr, + those top drop + curr - len bits are incremented through all values to + fill the table with replicated entries. + + root is the number of index bits for the root table. When len exceeds + root, sub-tables are created pointed to by the root entry with an index + of the low root bits of huff. This is saved in low to check for when a + new sub-table should be started. drop is zero when the root table is + being filled, and drop is root when sub-tables are being filled. + + When a new sub-table is needed, it is necessary to look ahead in the + code lengths to determine what size sub-table is needed. The length + counts are used for this, and so count[] is decremented as codes are + entered in the tables. + + used keeps track of how many table entries have been allocated from the + provided *table space. It is checked for LENS and DIST tables against + the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in + the initial root table size constants. See the comments in inftrees.h + for more information. + + sym increments through all symbols, and the loop terminates when + all codes of length max, i.e. all codes, have been processed. This + routine permits incomplete codes, so another loop after this one fills + in the rest of the decoding tables with invalid code markers. + */ + + /* set up for code type */ + // poor man optimization - use if-else instead of switch, + // to avoid deopts in old v8 + if (type === CODES) { + base = extra = work; /* dummy value--not used */ + end = 19; + + } else if (type === LENS) { + base = lbase; + base_index -= 257; + extra = lext; + extra_index -= 257; + end = 256; + + } else { /* DISTS */ + base = dbase; + extra = dext; + end = -1; + } + + /* initialize opts for loop */ + huff = 0; /* starting code */ + sym = 0; /* starting code symbol */ + len = min; /* starting code length */ + next = table_index; /* current table to fill in */ + curr = root; /* current table index bits */ + drop = 0; /* current bits to drop from code for index */ + low = -1; /* trigger new sub-table when len > root */ + used = 1 << root; /* use root table entries */ + mask = used - 1; /* mask for comparing low */ + + /* check available table space */ + if ((type === LENS && used > ENOUGH_LENS) || + (type === DISTS && used > ENOUGH_DISTS)) { + return 1; + } + + /* process all codes and make table entries */ + for (;;) { + /* create table entry */ + here_bits = len - drop; + if (work[sym] < end) { + here_op = 0; + here_val = work[sym]; + } + else if (work[sym] > end) { + here_op = extra[extra_index + work[sym]]; + here_val = base[base_index + work[sym]]; + } + else { + here_op = 32 + 64; /* end of block */ + here_val = 0; + } + + /* replicate for those indices with low len bits equal to huff */ + incr = 1 << (len - drop); + fill = 1 << curr; + min = fill; /* save offset to next table */ + do { + fill -= incr; + table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0; + } while (fill !== 0); + + /* backwards increment the len-bit code huff */ + incr = 1 << (len - 1); + while (huff & incr) { + incr >>= 1; + } + if (incr !== 0) { + huff &= incr - 1; + huff += incr; + } else { + huff = 0; + } + + /* go to next symbol, update count, len */ + sym++; + if (--count[len] === 0) { + if (len === max) { break; } + len = lens[lens_index + work[sym]]; + } + + /* create new sub-table if needed */ + if (len > root && (huff & mask) !== low) { + /* if first time, transition to sub-tables */ + if (drop === 0) { + drop = root; + } + + /* increment past last table */ + next += min; /* here min is 1 << curr */ + + /* determine length of next table */ + curr = len - drop; + left = 1 << curr; + while (curr + drop < max) { + left -= count[curr + drop]; + if (left <= 0) { break; } + curr++; + left <<= 1; + } + + /* check for enough space */ + used += 1 << curr; + if ((type === LENS && used > ENOUGH_LENS) || + (type === DISTS && used > ENOUGH_DISTS)) { + return 1; + } + + /* point entry in root table to sub-table */ + low = huff & mask; + /*table.op[low] = curr; + table.bits[low] = root; + table.val[low] = next - opts.table_index;*/ + table[low] = (root << 24) | (curr << 16) | (next - table_index) |0; + } + } + + /* fill in remaining table entry if code is incomplete (guaranteed to have + at most one remaining entry, since if the code is incomplete, the + maximum code length that was allowed to get this far is one bit) */ + if (huff !== 0) { + //table.op[next + huff] = 64; /* invalid code marker */ + //table.bits[next + huff] = len - drop; + //table.val[next + huff] = 0; + table[next + huff] = ((len - drop) << 24) | (64 << 16) |0; + } + + /* set return parameters */ + //opts.table_index += used; + opts.bits = root; + return 0; +}; + +},{"../utils/common":49}],57:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +module.exports = { + 2: 'need dictionary', /* Z_NEED_DICT 2 */ + 1: 'stream end', /* Z_STREAM_END 1 */ + 0: '', /* Z_OK 0 */ + '-1': 'file error', /* Z_ERRNO (-1) */ + '-2': 'stream error', /* Z_STREAM_ERROR (-2) */ + '-3': 'data error', /* Z_DATA_ERROR (-3) */ + '-4': 'insufficient memory', /* Z_MEM_ERROR (-4) */ + '-5': 'buffer error', /* Z_BUF_ERROR (-5) */ + '-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */ +}; + +},{}],58:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +var utils = require('../utils/common'); + +/* Public constants ==========================================================*/ +/* ===========================================================================*/ + + +//var Z_FILTERED = 1; +//var Z_HUFFMAN_ONLY = 2; +//var Z_RLE = 3; +var Z_FIXED = 4; +//var Z_DEFAULT_STRATEGY = 0; + +/* Possible values of the data_type field (though see inflate()) */ +var Z_BINARY = 0; +var Z_TEXT = 1; +//var Z_ASCII = 1; // = Z_TEXT +var Z_UNKNOWN = 2; + +/*============================================================================*/ + + +function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } } + +// From zutil.h + +var STORED_BLOCK = 0; +var STATIC_TREES = 1; +var DYN_TREES = 2; +/* The three kinds of block type */ + +var MIN_MATCH = 3; +var MAX_MATCH = 258; +/* The minimum and maximum match lengths */ + +// From deflate.h +/* =========================================================================== + * Internal compression state. + */ + +var LENGTH_CODES = 29; +/* number of length codes, not counting the special END_BLOCK code */ + +var LITERALS = 256; +/* number of literal bytes 0..255 */ + +var L_CODES = LITERALS + 1 + LENGTH_CODES; +/* number of Literal or Length codes, including the END_BLOCK code */ + +var D_CODES = 30; +/* number of distance codes */ + +var BL_CODES = 19; +/* number of codes used to transfer the bit lengths */ + +var HEAP_SIZE = 2 * L_CODES + 1; +/* maximum heap size */ + +var MAX_BITS = 15; +/* All codes must not exceed MAX_BITS bits */ + +var Buf_size = 16; +/* size of bit buffer in bi_buf */ + + +/* =========================================================================== + * Constants + */ + +var MAX_BL_BITS = 7; +/* Bit length codes must not exceed MAX_BL_BITS bits */ + +var END_BLOCK = 256; +/* end of block literal code */ + +var REP_3_6 = 16; +/* repeat previous bit length 3-6 times (2 bits of repeat count) */ + +var REPZ_3_10 = 17; +/* repeat a zero length 3-10 times (3 bits of repeat count) */ + +var REPZ_11_138 = 18; +/* repeat a zero length 11-138 times (7 bits of repeat count) */ + +/* eslint-disable comma-spacing,array-bracket-spacing */ +var extra_lbits = /* extra bits for each length code */ + [0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0]; + +var extra_dbits = /* extra bits for each distance code */ + [0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13]; + +var extra_blbits = /* extra bits for each bit length code */ + [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7]; + +var bl_order = + [16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]; +/* eslint-enable comma-spacing,array-bracket-spacing */ + +/* The lengths of the bit length codes are sent in order of decreasing + * probability, to avoid transmitting the lengths for unused bit length codes. + */ + +/* =========================================================================== + * Local data. These are initialized only once. + */ + +// We pre-fill arrays with 0 to avoid uninitialized gaps + +var DIST_CODE_LEN = 512; /* see definition of array dist_code below */ + +// !!!! Use flat array instead of structure, Freq = i*2, Len = i*2+1 +var static_ltree = new Array((L_CODES + 2) * 2); +zero(static_ltree); +/* The static literal tree. Since the bit lengths are imposed, there is no + * need for the L_CODES extra codes used during heap construction. However + * The codes 286 and 287 are needed to build a canonical tree (see _tr_init + * below). + */ + +var static_dtree = new Array(D_CODES * 2); +zero(static_dtree); +/* The static distance tree. (Actually a trivial tree since all codes use + * 5 bits.) + */ + +var _dist_code = new Array(DIST_CODE_LEN); +zero(_dist_code); +/* Distance codes. The first 256 values correspond to the distances + * 3 .. 258, the last 256 values correspond to the top 8 bits of + * the 15 bit distances. + */ + +var _length_code = new Array(MAX_MATCH - MIN_MATCH + 1); +zero(_length_code); +/* length code for each normalized match length (0 == MIN_MATCH) */ + +var base_length = new Array(LENGTH_CODES); +zero(base_length); +/* First normalized length for each code (0 = MIN_MATCH) */ + +var base_dist = new Array(D_CODES); +zero(base_dist); +/* First normalized distance for each code (0 = distance of 1) */ + + +function StaticTreeDesc(static_tree, extra_bits, extra_base, elems, max_length) { + + this.static_tree = static_tree; /* static tree or NULL */ + this.extra_bits = extra_bits; /* extra bits for each code or NULL */ + this.extra_base = extra_base; /* base index for extra_bits */ + this.elems = elems; /* max number of elements in the tree */ + this.max_length = max_length; /* max bit length for the codes */ + + // show if `static_tree` has data or dummy - needed for monomorphic objects + this.has_stree = static_tree && static_tree.length; +} + + +var static_l_desc; +var static_d_desc; +var static_bl_desc; + + +function TreeDesc(dyn_tree, stat_desc) { + this.dyn_tree = dyn_tree; /* the dynamic tree */ + this.max_code = 0; /* largest code with non zero frequency */ + this.stat_desc = stat_desc; /* the corresponding static tree */ +} + + + +function d_code(dist) { + return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)]; +} + + +/* =========================================================================== + * Output a short LSB first on the stream. + * IN assertion: there is enough room in pendingBuf. + */ +function put_short(s, w) { +// put_byte(s, (uch)((w) & 0xff)); +// put_byte(s, (uch)((ush)(w) >> 8)); + s.pending_buf[s.pending++] = (w) & 0xff; + s.pending_buf[s.pending++] = (w >>> 8) & 0xff; +} + + +/* =========================================================================== + * Send a value on a given number of bits. + * IN assertion: length <= 16 and value fits in length bits. + */ +function send_bits(s, value, length) { + if (s.bi_valid > (Buf_size - length)) { + s.bi_buf |= (value << s.bi_valid) & 0xffff; + put_short(s, s.bi_buf); + s.bi_buf = value >> (Buf_size - s.bi_valid); + s.bi_valid += length - Buf_size; + } else { + s.bi_buf |= (value << s.bi_valid) & 0xffff; + s.bi_valid += length; + } +} + + +function send_code(s, c, tree) { + send_bits(s, tree[c * 2]/*.Code*/, tree[c * 2 + 1]/*.Len*/); +} + + +/* =========================================================================== + * Reverse the first len bits of a code, using straightforward code (a faster + * method would use a table) + * IN assertion: 1 <= len <= 15 + */ +function bi_reverse(code, len) { + var res = 0; + do { + res |= code & 1; + code >>>= 1; + res <<= 1; + } while (--len > 0); + return res >>> 1; +} + + +/* =========================================================================== + * Flush the bit buffer, keeping at most 7 bits in it. + */ +function bi_flush(s) { + if (s.bi_valid === 16) { + put_short(s, s.bi_buf); + s.bi_buf = 0; + s.bi_valid = 0; + + } else if (s.bi_valid >= 8) { + s.pending_buf[s.pending++] = s.bi_buf & 0xff; + s.bi_buf >>= 8; + s.bi_valid -= 8; + } +} + + +/* =========================================================================== + * Compute the optimal bit lengths for a tree and update the total bit length + * for the current block. + * IN assertion: the fields freq and dad are set, heap[heap_max] and + * above are the tree nodes sorted by increasing frequency. + * OUT assertions: the field len is set to the optimal bit length, the + * array bl_count contains the frequencies for each bit length. + * The length opt_len is updated; static_len is also updated if stree is + * not null. + */ +function gen_bitlen(s, desc) +// deflate_state *s; +// tree_desc *desc; /* the tree descriptor */ +{ + var tree = desc.dyn_tree; + var max_code = desc.max_code; + var stree = desc.stat_desc.static_tree; + var has_stree = desc.stat_desc.has_stree; + var extra = desc.stat_desc.extra_bits; + var base = desc.stat_desc.extra_base; + var max_length = desc.stat_desc.max_length; + var h; /* heap index */ + var n, m; /* iterate over the tree elements */ + var bits; /* bit length */ + var xbits; /* extra bits */ + var f; /* frequency */ + var overflow = 0; /* number of elements with bit length too large */ + + for (bits = 0; bits <= MAX_BITS; bits++) { + s.bl_count[bits] = 0; + } + + /* In a first pass, compute the optimal bit lengths (which may + * overflow in the case of the bit length tree). + */ + tree[s.heap[s.heap_max] * 2 + 1]/*.Len*/ = 0; /* root of the heap */ + + for (h = s.heap_max + 1; h < HEAP_SIZE; h++) { + n = s.heap[h]; + bits = tree[tree[n * 2 + 1]/*.Dad*/ * 2 + 1]/*.Len*/ + 1; + if (bits > max_length) { + bits = max_length; + overflow++; + } + tree[n * 2 + 1]/*.Len*/ = bits; + /* We overwrite tree[n].Dad which is no longer needed */ + + if (n > max_code) { continue; } /* not a leaf node */ + + s.bl_count[bits]++; + xbits = 0; + if (n >= base) { + xbits = extra[n - base]; + } + f = tree[n * 2]/*.Freq*/; + s.opt_len += f * (bits + xbits); + if (has_stree) { + s.static_len += f * (stree[n * 2 + 1]/*.Len*/ + xbits); + } + } + if (overflow === 0) { return; } + + // Trace((stderr,"\nbit length overflow\n")); + /* This happens for example on obj2 and pic of the Calgary corpus */ + + /* Find the first bit length which could increase: */ + do { + bits = max_length - 1; + while (s.bl_count[bits] === 0) { bits--; } + s.bl_count[bits]--; /* move one leaf down the tree */ + s.bl_count[bits + 1] += 2; /* move one overflow item as its brother */ + s.bl_count[max_length]--; + /* The brother of the overflow item also moves one step up, + * but this does not affect bl_count[max_length] + */ + overflow -= 2; + } while (overflow > 0); + + /* Now recompute all bit lengths, scanning in increasing frequency. + * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all + * lengths instead of fixing only the wrong ones. This idea is taken + * from 'ar' written by Haruhiko Okumura.) + */ + for (bits = max_length; bits !== 0; bits--) { + n = s.bl_count[bits]; + while (n !== 0) { + m = s.heap[--h]; + if (m > max_code) { continue; } + if (tree[m * 2 + 1]/*.Len*/ !== bits) { + // Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); + s.opt_len += (bits - tree[m * 2 + 1]/*.Len*/) * tree[m * 2]/*.Freq*/; + tree[m * 2 + 1]/*.Len*/ = bits; + } + n--; + } + } +} + + +/* =========================================================================== + * Generate the codes for a given tree and bit counts (which need not be + * optimal). + * IN assertion: the array bl_count contains the bit length statistics for + * the given tree and the field len is set for all tree elements. + * OUT assertion: the field code is set for all tree elements of non + * zero code length. + */ +function gen_codes(tree, max_code, bl_count) +// ct_data *tree; /* the tree to decorate */ +// int max_code; /* largest code with non zero frequency */ +// ushf *bl_count; /* number of codes at each bit length */ +{ + var next_code = new Array(MAX_BITS + 1); /* next code value for each bit length */ + var code = 0; /* running code value */ + var bits; /* bit index */ + var n; /* code index */ + + /* The distribution counts are first used to generate the code values + * without bit reversal. + */ + for (bits = 1; bits <= MAX_BITS; bits++) { + next_code[bits] = code = (code + bl_count[bits - 1]) << 1; + } + /* Check that the bit counts in bl_count are consistent. The last code + * must be all ones. + */ + //Assert (code + bl_count[MAX_BITS]-1 == (1< length code (0..28) */ + length = 0; + for (code = 0; code < LENGTH_CODES - 1; code++) { + base_length[code] = length; + for (n = 0; n < (1 << extra_lbits[code]); n++) { + _length_code[length++] = code; + } + } + //Assert (length == 256, "tr_static_init: length != 256"); + /* Note that the length 255 (match length 258) can be represented + * in two different ways: code 284 + 5 bits or code 285, so we + * overwrite length_code[255] to use the best encoding: + */ + _length_code[length - 1] = code; + + /* Initialize the mapping dist (0..32K) -> dist code (0..29) */ + dist = 0; + for (code = 0; code < 16; code++) { + base_dist[code] = dist; + for (n = 0; n < (1 << extra_dbits[code]); n++) { + _dist_code[dist++] = code; + } + } + //Assert (dist == 256, "tr_static_init: dist != 256"); + dist >>= 7; /* from now on, all distances are divided by 128 */ + for (; code < D_CODES; code++) { + base_dist[code] = dist << 7; + for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) { + _dist_code[256 + dist++] = code; + } + } + //Assert (dist == 256, "tr_static_init: 256+dist != 512"); + + /* Construct the codes of the static literal tree */ + for (bits = 0; bits <= MAX_BITS; bits++) { + bl_count[bits] = 0; + } + + n = 0; + while (n <= 143) { + static_ltree[n * 2 + 1]/*.Len*/ = 8; + n++; + bl_count[8]++; + } + while (n <= 255) { + static_ltree[n * 2 + 1]/*.Len*/ = 9; + n++; + bl_count[9]++; + } + while (n <= 279) { + static_ltree[n * 2 + 1]/*.Len*/ = 7; + n++; + bl_count[7]++; + } + while (n <= 287) { + static_ltree[n * 2 + 1]/*.Len*/ = 8; + n++; + bl_count[8]++; + } + /* Codes 286 and 287 do not exist, but we must include them in the + * tree construction to get a canonical Huffman tree (longest code + * all ones) + */ + gen_codes(static_ltree, L_CODES + 1, bl_count); + + /* The static distance tree is trivial: */ + for (n = 0; n < D_CODES; n++) { + static_dtree[n * 2 + 1]/*.Len*/ = 5; + static_dtree[n * 2]/*.Code*/ = bi_reverse(n, 5); + } + + // Now data ready and we can init static trees + static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS + 1, L_CODES, MAX_BITS); + static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS); + static_bl_desc = new StaticTreeDesc(new Array(0), extra_blbits, 0, BL_CODES, MAX_BL_BITS); + + //static_init_done = true; +} + + +/* =========================================================================== + * Initialize a new block. + */ +function init_block(s) { + var n; /* iterates over tree elements */ + + /* Initialize the trees. */ + for (n = 0; n < L_CODES; n++) { s.dyn_ltree[n * 2]/*.Freq*/ = 0; } + for (n = 0; n < D_CODES; n++) { s.dyn_dtree[n * 2]/*.Freq*/ = 0; } + for (n = 0; n < BL_CODES; n++) { s.bl_tree[n * 2]/*.Freq*/ = 0; } + + s.dyn_ltree[END_BLOCK * 2]/*.Freq*/ = 1; + s.opt_len = s.static_len = 0; + s.last_lit = s.matches = 0; +} + + +/* =========================================================================== + * Flush the bit buffer and align the output on a byte boundary + */ +function bi_windup(s) +{ + if (s.bi_valid > 8) { + put_short(s, s.bi_buf); + } else if (s.bi_valid > 0) { + //put_byte(s, (Byte)s->bi_buf); + s.pending_buf[s.pending++] = s.bi_buf; + } + s.bi_buf = 0; + s.bi_valid = 0; +} + +/* =========================================================================== + * Copy a stored block, storing first the length and its + * one's complement if requested. + */ +function copy_block(s, buf, len, header) +//DeflateState *s; +//charf *buf; /* the input data */ +//unsigned len; /* its length */ +//int header; /* true if block header must be written */ +{ + bi_windup(s); /* align on byte boundary */ + + if (header) { + put_short(s, len); + put_short(s, ~len); + } +// while (len--) { +// put_byte(s, *buf++); +// } + utils.arraySet(s.pending_buf, s.window, buf, len, s.pending); + s.pending += len; +} + +/* =========================================================================== + * Compares to subtrees, using the tree depth as tie breaker when + * the subtrees have equal frequency. This minimizes the worst case length. + */ +function smaller(tree, n, m, depth) { + var _n2 = n * 2; + var _m2 = m * 2; + return (tree[_n2]/*.Freq*/ < tree[_m2]/*.Freq*/ || + (tree[_n2]/*.Freq*/ === tree[_m2]/*.Freq*/ && depth[n] <= depth[m])); +} + +/* =========================================================================== + * Restore the heap property by moving down the tree starting at node k, + * exchanging a node with the smallest of its two sons if necessary, stopping + * when the heap property is re-established (each father smaller than its + * two sons). + */ +function pqdownheap(s, tree, k) +// deflate_state *s; +// ct_data *tree; /* the tree to restore */ +// int k; /* node to move down */ +{ + var v = s.heap[k]; + var j = k << 1; /* left son of k */ + while (j <= s.heap_len) { + /* Set j to the smallest of the two sons: */ + if (j < s.heap_len && + smaller(tree, s.heap[j + 1], s.heap[j], s.depth)) { + j++; + } + /* Exit if v is smaller than both sons */ + if (smaller(tree, v, s.heap[j], s.depth)) { break; } + + /* Exchange v with the smallest son */ + s.heap[k] = s.heap[j]; + k = j; + + /* And continue down the tree, setting j to the left son of k */ + j <<= 1; + } + s.heap[k] = v; +} + + +// inlined manually +// var SMALLEST = 1; + +/* =========================================================================== + * Send the block data compressed using the given Huffman trees + */ +function compress_block(s, ltree, dtree) +// deflate_state *s; +// const ct_data *ltree; /* literal tree */ +// const ct_data *dtree; /* distance tree */ +{ + var dist; /* distance of matched string */ + var lc; /* match length or unmatched char (if dist == 0) */ + var lx = 0; /* running index in l_buf */ + var code; /* the code to send */ + var extra; /* number of extra bits to send */ + + if (s.last_lit !== 0) { + do { + dist = (s.pending_buf[s.d_buf + lx * 2] << 8) | (s.pending_buf[s.d_buf + lx * 2 + 1]); + lc = s.pending_buf[s.l_buf + lx]; + lx++; + + if (dist === 0) { + send_code(s, lc, ltree); /* send a literal byte */ + //Tracecv(isgraph(lc), (stderr," '%c' ", lc)); + } else { + /* Here, lc is the match length - MIN_MATCH */ + code = _length_code[lc]; + send_code(s, code + LITERALS + 1, ltree); /* send the length code */ + extra = extra_lbits[code]; + if (extra !== 0) { + lc -= base_length[code]; + send_bits(s, lc, extra); /* send the extra length bits */ + } + dist--; /* dist is now the match distance - 1 */ + code = d_code(dist); + //Assert (code < D_CODES, "bad d_code"); + + send_code(s, code, dtree); /* send the distance code */ + extra = extra_dbits[code]; + if (extra !== 0) { + dist -= base_dist[code]; + send_bits(s, dist, extra); /* send the extra distance bits */ + } + } /* literal or match pair ? */ + + /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ + //Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, + // "pendingBuf overflow"); + + } while (lx < s.last_lit); + } + + send_code(s, END_BLOCK, ltree); +} + + +/* =========================================================================== + * Construct one Huffman tree and assigns the code bit strings and lengths. + * Update the total bit length for the current block. + * IN assertion: the field freq is set for all tree elements. + * OUT assertions: the fields len and code are set to the optimal bit length + * and corresponding code. The length opt_len is updated; static_len is + * also updated if stree is not null. The field max_code is set. + */ +function build_tree(s, desc) +// deflate_state *s; +// tree_desc *desc; /* the tree descriptor */ +{ + var tree = desc.dyn_tree; + var stree = desc.stat_desc.static_tree; + var has_stree = desc.stat_desc.has_stree; + var elems = desc.stat_desc.elems; + var n, m; /* iterate over heap elements */ + var max_code = -1; /* largest code with non zero frequency */ + var node; /* new node being created */ + + /* Construct the initial heap, with least frequent element in + * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. + * heap[0] is not used. + */ + s.heap_len = 0; + s.heap_max = HEAP_SIZE; + + for (n = 0; n < elems; n++) { + if (tree[n * 2]/*.Freq*/ !== 0) { + s.heap[++s.heap_len] = max_code = n; + s.depth[n] = 0; + + } else { + tree[n * 2 + 1]/*.Len*/ = 0; + } + } + + /* The pkzip format requires that at least one distance code exists, + * and that at least one bit should be sent even if there is only one + * possible code. So to avoid special checks later on we force at least + * two codes of non zero frequency. + */ + while (s.heap_len < 2) { + node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0); + tree[node * 2]/*.Freq*/ = 1; + s.depth[node] = 0; + s.opt_len--; + + if (has_stree) { + s.static_len -= stree[node * 2 + 1]/*.Len*/; + } + /* node is 0 or 1 so it does not have extra bits */ + } + desc.max_code = max_code; + + /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, + * establish sub-heaps of increasing lengths: + */ + for (n = (s.heap_len >> 1/*int /2*/); n >= 1; n--) { pqdownheap(s, tree, n); } + + /* Construct the Huffman tree by repeatedly combining the least two + * frequent nodes. + */ + node = elems; /* next internal node of the tree */ + do { + //pqremove(s, tree, n); /* n = node of least frequency */ + /*** pqremove ***/ + n = s.heap[1/*SMALLEST*/]; + s.heap[1/*SMALLEST*/] = s.heap[s.heap_len--]; + pqdownheap(s, tree, 1/*SMALLEST*/); + /***/ + + m = s.heap[1/*SMALLEST*/]; /* m = node of next least frequency */ + + s.heap[--s.heap_max] = n; /* keep the nodes sorted by frequency */ + s.heap[--s.heap_max] = m; + + /* Create a new node father of n and m */ + tree[node * 2]/*.Freq*/ = tree[n * 2]/*.Freq*/ + tree[m * 2]/*.Freq*/; + s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1; + tree[n * 2 + 1]/*.Dad*/ = tree[m * 2 + 1]/*.Dad*/ = node; + + /* and insert the new node in the heap */ + s.heap[1/*SMALLEST*/] = node++; + pqdownheap(s, tree, 1/*SMALLEST*/); + + } while (s.heap_len >= 2); + + s.heap[--s.heap_max] = s.heap[1/*SMALLEST*/]; + + /* At this point, the fields freq and dad are set. We can now + * generate the bit lengths. + */ + gen_bitlen(s, desc); + + /* The field len is now set, we can generate the bit codes */ + gen_codes(tree, max_code, s.bl_count); +} + + +/* =========================================================================== + * Scan a literal or distance tree to determine the frequencies of the codes + * in the bit length tree. + */ +function scan_tree(s, tree, max_code) +// deflate_state *s; +// ct_data *tree; /* the tree to be scanned */ +// int max_code; /* and its largest code of non zero frequency */ +{ + var n; /* iterates over all tree elements */ + var prevlen = -1; /* last emitted length */ + var curlen; /* length of current code */ + + var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */ + + var count = 0; /* repeat count of the current code */ + var max_count = 7; /* max repeat count */ + var min_count = 4; /* min repeat count */ + + if (nextlen === 0) { + max_count = 138; + min_count = 3; + } + tree[(max_code + 1) * 2 + 1]/*.Len*/ = 0xffff; /* guard */ + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; + nextlen = tree[(n + 1) * 2 + 1]/*.Len*/; + + if (++count < max_count && curlen === nextlen) { + continue; + + } else if (count < min_count) { + s.bl_tree[curlen * 2]/*.Freq*/ += count; + + } else if (curlen !== 0) { + + if (curlen !== prevlen) { s.bl_tree[curlen * 2]/*.Freq*/++; } + s.bl_tree[REP_3_6 * 2]/*.Freq*/++; + + } else if (count <= 10) { + s.bl_tree[REPZ_3_10 * 2]/*.Freq*/++; + + } else { + s.bl_tree[REPZ_11_138 * 2]/*.Freq*/++; + } + + count = 0; + prevlen = curlen; + + if (nextlen === 0) { + max_count = 138; + min_count = 3; + + } else if (curlen === nextlen) { + max_count = 6; + min_count = 3; + + } else { + max_count = 7; + min_count = 4; + } + } +} + + +/* =========================================================================== + * Send a literal or distance tree in compressed form, using the codes in + * bl_tree. + */ +function send_tree(s, tree, max_code) +// deflate_state *s; +// ct_data *tree; /* the tree to be scanned */ +// int max_code; /* and its largest code of non zero frequency */ +{ + var n; /* iterates over all tree elements */ + var prevlen = -1; /* last emitted length */ + var curlen; /* length of current code */ + + var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */ + + var count = 0; /* repeat count of the current code */ + var max_count = 7; /* max repeat count */ + var min_count = 4; /* min repeat count */ + + /* tree[max_code+1].Len = -1; */ /* guard already set */ + if (nextlen === 0) { + max_count = 138; + min_count = 3; + } + + for (n = 0; n <= max_code; n++) { + curlen = nextlen; + nextlen = tree[(n + 1) * 2 + 1]/*.Len*/; + + if (++count < max_count && curlen === nextlen) { + continue; + + } else if (count < min_count) { + do { send_code(s, curlen, s.bl_tree); } while (--count !== 0); + + } else if (curlen !== 0) { + if (curlen !== prevlen) { + send_code(s, curlen, s.bl_tree); + count--; + } + //Assert(count >= 3 && count <= 6, " 3_6?"); + send_code(s, REP_3_6, s.bl_tree); + send_bits(s, count - 3, 2); + + } else if (count <= 10) { + send_code(s, REPZ_3_10, s.bl_tree); + send_bits(s, count - 3, 3); + + } else { + send_code(s, REPZ_11_138, s.bl_tree); + send_bits(s, count - 11, 7); + } + + count = 0; + prevlen = curlen; + if (nextlen === 0) { + max_count = 138; + min_count = 3; + + } else if (curlen === nextlen) { + max_count = 6; + min_count = 3; + + } else { + max_count = 7; + min_count = 4; + } + } +} + + +/* =========================================================================== + * Construct the Huffman tree for the bit lengths and return the index in + * bl_order of the last bit length code to send. + */ +function build_bl_tree(s) { + var max_blindex; /* index of last bit length code of non zero freq */ + + /* Determine the bit length frequencies for literal and distance trees */ + scan_tree(s, s.dyn_ltree, s.l_desc.max_code); + scan_tree(s, s.dyn_dtree, s.d_desc.max_code); + + /* Build the bit length tree: */ + build_tree(s, s.bl_desc); + /* opt_len now includes the length of the tree representations, except + * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. + */ + + /* Determine the number of bit length codes to send. The pkzip format + * requires that at least 4 bit length codes be sent. (appnote.txt says + * 3 but the actual value used is 4.) + */ + for (max_blindex = BL_CODES - 1; max_blindex >= 3; max_blindex--) { + if (s.bl_tree[bl_order[max_blindex] * 2 + 1]/*.Len*/ !== 0) { break; } } - this.charReceived = i; -}; + /* Update opt_len to include the bit length tree and counts */ + s.opt_len += 3 * (max_blindex + 1) + 5 + 5 + 4; + //Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", + // s->opt_len, s->static_len)); -StringDecoder.prototype.end = function(buffer) { - var res = ''; - if (buffer && buffer.length) - res = this.write(buffer); + return max_blindex; +} - if (this.charReceived) { - var cr = this.charReceived; - var buf = this.charBuffer; - var enc = this.encoding; - res += buf.slice(0, cr).toString(enc); + +/* =========================================================================== + * Send the header for a block using dynamic Huffman trees: the counts, the + * lengths of the bit length codes, the literal tree and the distance tree. + * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. + */ +function send_all_trees(s, lcodes, dcodes, blcodes) +// deflate_state *s; +// int lcodes, dcodes, blcodes; /* number of codes for each tree */ +{ + var rank; /* index in bl_order */ + + //Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); + //Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, + // "too many codes"); + //Tracev((stderr, "\nbl counts: ")); + send_bits(s, lcodes - 257, 5); /* not +255 as stated in appnote.txt */ + send_bits(s, dcodes - 1, 5); + send_bits(s, blcodes - 4, 4); /* not -3 as stated in appnote.txt */ + for (rank = 0; rank < blcodes; rank++) { + //Tracev((stderr, "\nbl code %2d ", bl_order[rank])); + send_bits(s, s.bl_tree[bl_order[rank] * 2 + 1]/*.Len*/, 3); + } + //Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); + + send_tree(s, s.dyn_ltree, lcodes - 1); /* literal tree */ + //Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); + + send_tree(s, s.dyn_dtree, dcodes - 1); /* distance tree */ + //Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); +} + + +/* =========================================================================== + * Check if the data type is TEXT or BINARY, using the following algorithm: + * - TEXT if the two conditions below are satisfied: + * a) There are no non-portable control characters belonging to the + * "black list" (0..6, 14..25, 28..31). + * b) There is at least one printable character belonging to the + * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). + * - BINARY otherwise. + * - The following partially-portable control characters form a + * "gray list" that is ignored in this detection algorithm: + * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}). + * IN assertion: the fields Freq of dyn_ltree are set. + */ +function detect_data_type(s) { + /* black_mask is the bit mask of black-listed bytes + * set bits 0..6, 14..25, and 28..31 + * 0xf3ffc07f = binary 11110011111111111100000001111111 + */ + var black_mask = 0xf3ffc07f; + var n; + + /* Check for non-textual ("black-listed") bytes. */ + for (n = 0; n <= 31; n++, black_mask >>>= 1) { + if ((black_mask & 1) && (s.dyn_ltree[n * 2]/*.Freq*/ !== 0)) { + return Z_BINARY; + } } - return res; -}; + /* Check for textual ("white-listed") bytes. */ + if (s.dyn_ltree[9 * 2]/*.Freq*/ !== 0 || s.dyn_ltree[10 * 2]/*.Freq*/ !== 0 || + s.dyn_ltree[13 * 2]/*.Freq*/ !== 0) { + return Z_TEXT; + } + for (n = 32; n < LITERALS; n++) { + if (s.dyn_ltree[n * 2]/*.Freq*/ !== 0) { + return Z_TEXT; + } + } -function passThroughWrite(buffer) { - return buffer.toString(this.encoding); + /* There are no "black-listed" or "white-listed" bytes: + * this stream either is empty or has tolerated ("gray-listed") bytes only. + */ + return Z_BINARY; } -function utf16DetectIncompleteChar(buffer) { - this.charReceived = buffer.length % 2; - this.charLength = this.charReceived ? 2 : 0; + +var static_init_done = false; + +/* =========================================================================== + * Initialize the tree data structures for a new zlib stream. + */ +function _tr_init(s) +{ + + if (!static_init_done) { + tr_static_init(); + static_init_done = true; + } + + s.l_desc = new TreeDesc(s.dyn_ltree, static_l_desc); + s.d_desc = new TreeDesc(s.dyn_dtree, static_d_desc); + s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc); + + s.bi_buf = 0; + s.bi_valid = 0; + + /* Initialize the first block of the first file: */ + init_block(s); } -function base64DetectIncompleteChar(buffer) { - this.charReceived = buffer.length % 3; - this.charLength = this.charReceived ? 3 : 0; + +/* =========================================================================== + * Send a stored block + */ +function _tr_stored_block(s, buf, stored_len, last) +//DeflateState *s; +//charf *buf; /* input block */ +//ulg stored_len; /* length of input block */ +//int last; /* one if this is the last block for a file */ +{ + send_bits(s, (STORED_BLOCK << 1) + (last ? 1 : 0), 3); /* send block type */ + copy_block(s, buf, stored_len, true); /* with header */ } -},{"buffer":12}],45:[function(require,module,exports){ + +/* =========================================================================== + * Send one empty static block to give enough lookahead for inflate. + * This takes 10 bits, of which 7 may remain in the bit buffer. + */ +function _tr_align(s) { + send_bits(s, STATIC_TREES << 1, 3); + send_code(s, END_BLOCK, static_ltree); + bi_flush(s); +} + + +/* =========================================================================== + * Determine the best encoding for the current block: dynamic trees, static + * trees or store, and output the encoded block to the zip file. + */ +function _tr_flush_block(s, buf, stored_len, last) +//DeflateState *s; +//charf *buf; /* input block, or NULL if too old */ +//ulg stored_len; /* length of input block */ +//int last; /* one if this is the last block for a file */ +{ + var opt_lenb, static_lenb; /* opt_len and static_len in bytes */ + var max_blindex = 0; /* index of last bit length code of non zero freq */ + + /* Build the Huffman trees unless a stored block is forced */ + if (s.level > 0) { + + /* Check if the file is binary or text */ + if (s.strm.data_type === Z_UNKNOWN) { + s.strm.data_type = detect_data_type(s); + } + + /* Construct the literal and distance trees */ + build_tree(s, s.l_desc); + // Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, + // s->static_len)); + + build_tree(s, s.d_desc); + // Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, + // s->static_len)); + /* At this point, opt_len and static_len are the total bit lengths of + * the compressed block data, excluding the tree representations. + */ + + /* Build the bit length tree for the above two trees, and get the index + * in bl_order of the last bit length code to send. + */ + max_blindex = build_bl_tree(s); + + /* Determine the best encoding. Compute the block lengths in bytes. */ + opt_lenb = (s.opt_len + 3 + 7) >>> 3; + static_lenb = (s.static_len + 3 + 7) >>> 3; + + // Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", + // opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, + // s->last_lit)); + + if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; } + + } else { + // Assert(buf != (char*)0, "lost buf"); + opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ + } + + if ((stored_len + 4 <= opt_lenb) && (buf !== -1)) { + /* 4: two words for the lengths */ + + /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. + * Otherwise we can't have processed more than WSIZE input bytes since + * the last block flush, because compression would have been + * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to + * transform a block into a stored block. + */ + _tr_stored_block(s, buf, stored_len, last); + + } else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) { + + send_bits(s, (STATIC_TREES << 1) + (last ? 1 : 0), 3); + compress_block(s, static_ltree, static_dtree); + + } else { + send_bits(s, (DYN_TREES << 1) + (last ? 1 : 0), 3); + send_all_trees(s, s.l_desc.max_code + 1, s.d_desc.max_code + 1, max_blindex + 1); + compress_block(s, s.dyn_ltree, s.dyn_dtree); + } + // Assert (s->compressed_len == s->bits_sent, "bad compressed size"); + /* The above check is made mod 2^32, for files larger than 512 MB + * and uLong implemented on 32 bits. + */ + init_block(s); + + if (last) { + bi_windup(s); + } + // Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, + // s->compressed_len-7*last)); +} + +/* =========================================================================== + * Save the match info and tally the frequency counts. Return true if + * the current block must be flushed. + */ +function _tr_tally(s, dist, lc) +// deflate_state *s; +// unsigned dist; /* distance of matched string */ +// unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ +{ + //var out_length, in_length, dcode; + + s.pending_buf[s.d_buf + s.last_lit * 2] = (dist >>> 8) & 0xff; + s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff; + + s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff; + s.last_lit++; + + if (dist === 0) { + /* lc is the unmatched char */ + s.dyn_ltree[lc * 2]/*.Freq*/++; + } else { + s.matches++; + /* Here, lc is the match length - MIN_MATCH */ + dist--; /* dist = match distance - 1 */ + //Assert((ush)dist < (ush)MAX_DIST(s) && + // (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && + // (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); + + s.dyn_ltree[(_length_code[lc] + LITERALS + 1) * 2]/*.Freq*/++; + s.dyn_dtree[d_code(dist) * 2]/*.Freq*/++; + } + +// (!) This block is disabled in zlib defaults, +// don't enable it for binary compatibility + +//#ifdef TRUNCATE_BLOCK +// /* Try to guess if it is profitable to stop the current block here */ +// if ((s.last_lit & 0x1fff) === 0 && s.level > 2) { +// /* Compute an upper bound for the compressed length */ +// out_length = s.last_lit*8; +// in_length = s.strstart - s.block_start; +// +// for (dcode = 0; dcode < D_CODES; dcode++) { +// out_length += s.dyn_dtree[dcode*2]/*.Freq*/ * (5 + extra_dbits[dcode]); +// } +// out_length >>>= 3; +// //Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", +// // s->last_lit, in_length, out_length, +// // 100L - out_length*100L/in_length)); +// if (s.matches < (s.last_lit>>1)/*int /2*/ && out_length < (in_length>>1)/*int /2*/) { +// return true; +// } +// } +//#endif + + return (s.last_lit === s.lit_bufsize - 1); + /* We avoid equality with lit_bufsize because of wraparound at 64K + * on 16 bit machines and because stored blocks are restricted to + * 64K-1 bytes. + */ +} + +exports._tr_init = _tr_init; +exports._tr_stored_block = _tr_stored_block; +exports._tr_flush_block = _tr_flush_block; +exports._tr_tally = _tr_tally; +exports._tr_align = _tr_align; + +},{"../utils/common":49}],59:[function(require,module,exports){ +'use strict'; + +// (C) 1995-2013 Jean-loup Gailly and Mark Adler +// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin +// +// This software is provided 'as-is', without any express or implied +// warranty. In no event will the authors be held liable for any damages +// arising from the use of this software. +// +// Permission is granted to anyone to use this software for any purpose, +// including commercial applications, and to alter it and redistribute it +// freely, subject to the following restrictions: +// +// 1. The origin of this software must not be misrepresented; you must not +// claim that you wrote the original software. If you use this software +// in a product, an acknowledgment in the product documentation would be +// appreciated but is not required. +// 2. Altered source versions must be plainly marked as such, and must not be +// misrepresented as being the original software. +// 3. This notice may not be removed or altered from any source distribution. + +function ZStream() { + /* next input byte */ + this.input = null; // JS specific, because we have no pointers + this.next_in = 0; + /* number of bytes available at input */ + this.avail_in = 0; + /* total number of input bytes read so far */ + this.total_in = 0; + /* next output byte should be put there */ + this.output = null; // JS specific, because we have no pointers + this.next_out = 0; + /* remaining free space at output */ + this.avail_out = 0; + /* total number of bytes output so far */ + this.total_out = 0; + /* last error message, NULL if no error */ + this.msg = ''/*Z_NULL*/; + /* not visible by applications */ + this.state = null; + /* best guess about the data type: binary or text */ + this.data_type = 2/*Z_UNKNOWN*/; + /* adler32 value of the uncompressed data */ + this.adler = 0; +} + +module.exports = ZStream; + +},{}],60:[function(require,module,exports){ exports.read = function (buffer, offset, isLE, mLen, nBytes) { var e, m var eLen = (nBytes * 8) - mLen - 1 @@ -15548,7 +22586,7 @@ exports.write = function (buffer, value, offset, isLE, mLen, nBytes) { buffer[offset + i - d] |= s * 128 } -},{}],46:[function(require,module,exports){ +},{}],61:[function(require,module,exports){ /* * Invert the image */ @@ -15600,1003 +22638,1003 @@ var info = { } } module.exports = [Invert,info]; -},{}],47:[function(require,module,exports){ -/** - * Copyright (c) 2015 Guyon Roche - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions:

- * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -"use strict"; - -var _ = require("underscore"); - -var main = module.exports = { - Bitmap: require("./lib/bitmap") -}; - -_.extend(main, require("./lib/enums")); +},{}],62:[function(require,module,exports){ +/** + * Copyright (c) 2015 Guyon Roche + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions:

+ * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +"use strict"; -},{"./lib/bitmap":48,"./lib/enums":49,"underscore":147}],48:[function(require,module,exports){ -(function (Buffer){ -/** - * Copyright (c) 2015 Guyon Roche - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions:

- * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -"use strict"; - -var fs = require("fs"); -var _ = require("underscore"); -var Promise = require("bluebird"); -var jpeg = require("jpeg-js"); -//var png = require("png-js"); -var PNG = require("node-png").PNG; - -var Enums = require("./enums"); -var Utils = require("./utils"); -var Resize = require("./resize"); -//var Graphics = require("./graphics"); - -// default pad colour -var transparentBlack = { - r: 0, g: 0, b: 0, a: 0 -}; - -var Bitmap = module.exports = function(options) { - if (options) { - if (options instanceof Bitmap) { - this._data = { - data: new Buffer(options.data.data), - width: options.width, - height: options.height - }; - } else if (options.data) { - // attach to supplied data - this._data = options; - } else if (options.width && options.height) { - // construct new bitmap - this._data = { - data: new Buffer(4 * options.width * options.height), - width: options.width, - height: options.height - }; - - // optional colour - if (options.color) { - this._fill(options.color); - } - } - } -}; - -Bitmap.prototype = { - get width() { - return this._data.width; - }, - get height() { - return this._data.height; - }, - //get graphics() { - // if (!this._graphics) { - // this._graphics = new Graphics(this); - // } - // return this._graphics; - //}, - - attach: function(data) { - var prev = this._data; - this._data = data; - return prev; - }, - detach: function() { - var data = this._data; - delete this._data; - return data; - }, - - _deduceFileType: function(filename) { - if (!filename) { - throw new Error("Can't determine image type"); - } - switch (filename.substr(-4).toLowerCase()) { - case ".jpg": - return Enums.ImageType.JPG; - case ".png": - return Enums.ImageType.PNG; - } - if (filename.substr(-5).toLowerCase() == ".jpeg") { - return Enums.ImageType.JPG; - } - throw new Error("Can't recognise image type: " + filename); - }, - - _readStream: function(stream) { - var self = this; - var deferred = Promise.defer(); - - var chunks = []; - stream.on('data', function(chunk) { - chunks.push(chunk); - }); - stream.on('end', function() { - var data = Buffer.concat(chunks); - deferred.resolve(data); - }); - stream.on('error', function(error) { - deferred.reject(error); - }); - - return deferred.promise; - }, - _readPNG: function(stream) { - var deferred = Promise.defer(); - - var png = new PNG({filterType: 4}); - png.on('parsed', function() { - deferred.resolve(png); - }); - png.on('error', function(error) { - deferred.rejecyt(error); - }); - stream.pipe(png); - - return deferred.promise; - }, - _parseOptions: function(options, filename) { - options = options || {}; - if (typeof options === "number") { - options = { type: options }; - } - options.type = options.type || this._deduceFileType(filename); - return options; - }, - read: function(stream, options) { - var self = this; - options = this._parseOptions(options); - - switch(options.type) { - case Enums.ImageType.JPG: - return this._readStream(stream) - .then(function(data) { - self._data = jpeg.decode(data); - }); - case Enums.ImageType.PNG: - return this._readPNG(stream) - .then(function(png) { - self._data = { - data: png.data, - width: png.width, - height: png.height - }; - }); - default: - return Promise.reject(new Error("Not supported: ImageType " + options.type)); - } - }, - readFile: function(filename, options) { - var self = this; - return Utils.fs.exists(filename) - .then(function(exists) { - if (exists) { - options = self._parseOptions(options, filename); - var stream = fs.createReadStream(filename); - return self.read(stream, options); - } else { - throw new Error("File Not Found: " + filename); - } - }); - }, - - write: function(stream, options) { - options = this._parseOptions(options); - var deferred = Promise.defer(); - try { - stream.on('finish', function() { - deferred.resolve(); - }); - stream.on('error', function(error) { - deferred.reject(error); - }); - - switch(options.type) { - case Enums.ImageType.JPG: - var buffer = jpeg.encode(this._data, options.quality || 90).data; - stream.write(buffer); - stream.end(); - break; - case Enums.ImageType.PNG: - var png = new PNG(); - png.width = this.width; - png.height = this.height; - png.data = this._data.data; - png.on('end', function() { - deferred.resolve(); - }); - png.on('error', function(error) { - deferred.reject(error); - }); - png.pack().pipe(stream); - break; - default: - throw new Error("Not supported: ImageType " + options.type); - } - } - catch(ex) { - deferred.reject(ex); - } - return deferred.promise; - }, - writeFile: function(filename, options) { - options = this._parseOptions(options, filename); - var stream = fs.createWriteStream(filename); - return this.write(stream, options); - }, - - clone: function() { - return new Bitmap({ - width: this.width, - height: this.height, - data: new Buffer(this._data.data) - }); - }, - - setPixel: function(x,y, r,g,b,a) { - if (g === undefined) { - var color = r; - r = color.r; - g = color.g; - b = color.b; - a = color.a; - } - if (a === undefined) a = 255; - var pos = (y * this.width + x) * 4; - var buffer = this._data.data; - buffer[pos++] = r; - buffer[pos++] = g; - buffer[pos++] = b; - buffer[pos++] = a; - }, - getPixel: function(x,y, color) { - var pos = (y * this.width + x) * 4; - color = color || {}; - var buffer = this._data.data; - color.r = buffer[pos++]; - color.g = buffer[pos++]; - color.b = buffer[pos++]; - color.a = buffer[pos++]; - return color; - }, - - negative: function() { - var that = new Bitmap({width: this.width, height: this.height}); - var n = this.width * this.height; - - var src = this._data.data; - var dst = that._data.data; - var srcPos = 0; - var dstPos = 0; - for (var i = 0; i < n; i++) { - dst[dstPos++] = 255 - src[srcPos++]; - dst[dstPos++] = 255 - src[srcPos++]; - dst[dstPos++] = 255 - src[srcPos++]; - dst[dstPos++] = src[srcPos++]; - } - return that; - }, - - resize: function(options) { - var that = new Bitmap(options); - var temp; - switch (options.fit) { - case "pad": // fit all of src in dst with aspect ratio preserved. - var padColor = options.padColor || transparentBlack; - var srcAr = this.width / this.height; - var w2 = Math.round(srcAr * that.height); - var h2 = Math.round(that.width / srcAr); - var wMargin = 0; - var hMargin = 0; - if (w2 < that.width) { - // pad sides - temp = new Bitmap({width: w2, height: that.height}); - wMargin = (that.width - w2) / 2; - that._fill(padColor, 0, 0, Math.floor(wMargin), that.height); - that._fill(padColor, that.width - Math.ceil(wMargin), 0, Math.ceil(wMargin), that.height); - - Resize[options.algorithm](this, temp, options); - that._blt(temp, {left: Math.floor(wMargin), top: Math.floor(hMargin)}); - } else if (h2 < that.height) { - // pad top & bottom - temp = new Bitmap({width: that.width, height: h2}); - hMargin = (that.height - h2) / 2; - that._fill(padColor, 0, 0, that.width, Math.floor(hMargin)); - that._fill(padColor, 0, that.height - Math.ceil(hMargin), that.width, Math.ceil(hMargin)); - - Resize[options.algorithm](this, temp, options); - that._blt(temp, {left: Math.floor(wMargin), top: Math.floor(hMargin)}); - } else { - // stretch straight into that - Resize[options.algorithm](this, that, options); - } - break; - case "crop": // crop original to fit in dst with aspect ratio preserved - var gravity = options.gravity || {x: 0.5, y: 0.5}; - var dstAr = that.width / that.height; - var w2 = Math.round(dstAr * this.height); - var h2 = Math.round(this.width / dstAr); - if (w2 < this.width) { - // crop src width - var dw = this.width - w2; - temp = this.crop({left: Math.round(gravity.x * dw), top: 0, width: w2, height: this.height}); - } else if (h2 < this.height) { - // crop src height - var dh = this.height - h2; - temp = this.crop({left: 0, top: Math.round(gravity.y * dh), width: this.width, height: h2}); - } else { - temp = this; - } - Resize[options.algorithm](temp, that, options); - break; - case "stretch": - default: - Resize[options.algorithm](this, that, options); - break; - } - - return that; - }, - - rotate: function(options) { - // TODO: crop, user supplied dst width, height - - // options.degrees || options.radians; - // options.fit = ['pad','crop','same'] - // options.padColor - var radians = options.radians !== undefined ? options.radians : 3.141592653589793 * options.degrees / 180; - if (radians < 0.000000001) { - return new Bitmap(this); - } - //console.log("radians=" + radians); - - var rotators = { - forward: { - cos: Math.cos(radians), - sin: Math.sin(radians) - }, - backward: { - cos: Math.cos(-radians), - sin: Math.sin(-radians) - } - } - //console.log("cos=" + cos + ", sin=" + sin) - - var srcWidth = this.width; - var srcHeight = this.height; - var srcWidthHalf = srcWidth / 2; - var srcHeightHalf = srcHeight / 2; - - var padColor = options.padColor || transparentBlack; - var padArray = [padColor.r, padColor.g, padColor.b, padColor.a]; - var rotate = function(point, rotator) { - // in-place rotation of point - var x = rotator.cos * point.x - rotator.sin * point.y; - var y = rotator.sin * point.x + rotator.cos * point.y; - point.x = x; - point.y = y; - return point; - }; - var cropToSource = function(point) { - var m = Math.abs(point.x/srcWidthHalf); - var n = Math.abs(point.y/srcHeightHalf); - return Math.max(m,n); - }; - - var dstWidth, dstHeight; - switch (options.fit) { - case 'custom': - dstWidth = options.width; - dstHeight = options.height; - break; - case 'pad': - // entire src fits in dst - var tl = rotate({x:-srcWidthHalf,y:srcHeightHalf}, rotators.forward); - var tr = rotate({x:srcWidthHalf,y:srcHeightHalf}, rotators.forward); - var bl = rotate({x:-srcWidthHalf,y:-srcHeightHalf}, rotators.forward); - var br = rotate({x:srcWidthHalf,y:-srcHeightHalf}, rotators.forward); - dstWidth = Math.round(Math.max(tl.x,tr.x,bl.x,br.x) - Math.min(tl.x,tr.x,bl.x,br.x)); - dstHeight = Math.round(Math.max(tl.y,tr.y,bl.y,br.y) - Math.min(tl.y,tr.y,bl.y,br.y)); - break; - case 'crop': - var tl = rotate({x:-srcWidthHalf,y:srcHeightHalf}, rotators.forward); - var tr = rotate({x:srcWidthHalf,y:srcHeightHalf}, rotators.forward); - var bl = rotate({x:-srcWidthHalf,y:-srcHeightHalf}, rotators.forward); - var br = rotate({x:srcWidthHalf,y:-srcHeightHalf}, rotators.forward); - var d = Math.max(cropToSource(tl), cropToSource(tr), cropToSource(bl), cropToSource(br)); - dstWidth = Math.floor(srcWidth / d); - dstHeight = Math.floor(srcHeight / d); - break; - case 'same': - default: - // dst is same size as src - dstWidth = srcWidth; - dstHeight = srcHeight; - break; - } - - var that = new Bitmap({width: dstWidth, height: dstHeight}); - - var srcBuf = this._data.data; - var dstBuf = that._data.data; - - // we will rotate the destination pixels back to the source and interpolate the colour - var srcCoord = {}; - var dstWidthHalf = dstWidth / 2; - var dstHeightHalf = dstHeight / 2; - var dstWidth4 = dstWidth * 4; - var srcWidth4 = srcWidth * 4; - - //console.log("src=[" + srcWidth + "," + srcHeight + "]") - //console.log("dst=[" + dstWidth + "," + dstHeight + "]") - for (var i = 0; i < dstHeight; i++) { - for (var j = 0; j < dstWidth; j++) { - // calculate src coords - srcCoord.x = j - dstWidthHalf; - srcCoord.y = dstHeightHalf - i; - //console.log("x=" + srcCoord.x + ", y=" + srcCoord.y); - rotate(srcCoord, rotators.backward); - //console.log(" ==> x=" + srcCoord.x + ", y=" + srcCoord.y); - - // srcX and SrcY are in src coords - var srcX = srcCoord.x + srcWidthHalf; - var srcY = srcHeightHalf - srcCoord.y; - //console.log("srcX=" + srcX + ", srcY=" + srcY); - - // now interpolate (bilinear! - var dstPos = (i * dstWidth + j) * 4; - //console.log("dstPos=" + dstPos) - if ((srcX > -1) && (srcX < srcWidth) && (srcY > -1) && (srcY < srcHeight)) { - var srcPosX = Math.floor(srcX); - var srcPosY = Math.floor(srcY); - var srcPos = (srcPosY * srcWidth + srcPosX) * 4; - for (var k = 0; k < 4; k++) { - var kSrcPos = srcPos + k; - var kPad = padArray[k]; - - var tl = ((srcX >= 0) && (srcY >= 0)) ? srcBuf[kSrcPos] : kPad; - var tr = ((srcX < srcWidth-1) && (srcY >= 0)) ? srcBuf[kSrcPos+4] : kPad; - var bl = ((srcX >= 0) && (srcY < srcHeight-1)) ? srcBuf[kSrcPos + srcWidth4] : kPad; - var br = ((srcX < srcWidth-1) && (srcY < srcHeight-1)) ? srcBuf[kSrcPos + srcWidth4 + 4] : kPad; - - var tx = srcX - srcPosX; - var ty = srcY - srcPosY; - - var t = (1-tx) * tl + tx * tr; - var b = (1-tx) * bl + tx * br; - dstBuf[dstPos++] = (1-ty) * t + ty * b; - } - } else { - dstBuf[dstPos++] = padColor.r; - dstBuf[dstPos++] = padColor.g; - dstBuf[dstPos++] = padColor.b; - dstBuf[dstPos++] = padColor.a; - } - } - } - return that; - }, - - crop: function(options) { - var t = options.top; - var l = options.left; - var w = options.width; - var h = options.height; - //console.log("Crop: l="+l + ", t="+t + ", w="+w + ", h="+h); - - var that = new Bitmap({width: w, height: h}); - - var srcBuf = this._data.data; - var dstBuf = that._data.data; - - var w4 = w * 4; - for (var i = 0; i < h; i++) { - var srcPos = ((i+t)*this.width + l) * 4; - var dstPos = i * w * 4; - srcBuf.copy(dstBuf, dstPos, srcPos, srcPos + w4); - } - return that; - }, - - blur: function(options) { - // todo: expand to own file with different blur algorithms - var that = new Bitmap({width: this.width, height: this.height}); - var w = this.width; - var h = this.height; - - var W = w-1; - var H = h-1; - - var V = w*4; // used for i offsets - - var src = this._data.data; - var dst = that._data.data; - for (var i = 0; i < h; i++) { - for (var j = 0; j < w; j++) { - for (var k = 0; k < 4; k++) { - var pos = (i*w + j) * 4 + k; - var t = src[pos -(i>0?V:0) - (j>0?4:0)] * 1 + // 1/16 - src[pos -(i>0?V:0) ] * 2 + // 2/16 - src[pos -(i>0?V:0) + (j0?4:0)] * 2 + // 2/16 - src[pos ] * 4 + // 4/16 - src[pos + (j0?4:0)] * 1 + // 1/16 - src[pos +(i - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -"use strict"; - -module.exports = { - ImageType: { - JPG: 1, - PNG: 2 - } +var _ = require("underscore"); + +var main = module.exports = { + Bitmap: require("./lib/bitmap") }; -},{}],50:[function(require,module,exports){ + +_.extend(main, require("./lib/enums")); + +},{"./lib/bitmap":63,"./lib/enums":64,"underscore":145}],63:[function(require,module,exports){ (function (Buffer){ -/** - * Copyright (c) 2015 Guyon Roche - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions:

- * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -"use strict"; - -var _ = require("underscore"); -var Promise = require("bluebird"); - -module.exports = { - _writeFile: function(width, height, data, filename) { - // for debugging - - var Bitmap = require("./bitmap"); - var bmp = new Bitmap({ - width: width, height: height, - data: data - }); - bmp.writeFile(filename); - }, - - nearestNeighbor: function(src, dst, options) { - - var wSrc = src.width; - var hSrc = src.height; - //console.log("wSrc="+wSrc + ", hSrc="+hSrc); - - var wDst = dst.width; - var hDst = dst.height; - //console.log("wDst="+wDst + ", hDst="+hDst); - - var bufSrc = src._data.data; - var bufDst = dst._data.data; - - for (var i = 0; i < hDst; i++) { - for (var j = 0; j < wDst; j++) { - var posDst = (i * wDst + j) * 4; - - var iSrc = Math.round(i * hSrc / hDst); - var jSrc = Math.round(j * wSrc / wDst); - var posSrc = (iSrc * wSrc + jSrc) * 4; - - bufDst[posDst++] = bufSrc[posSrc++]; - bufDst[posDst++] = bufSrc[posSrc++]; - bufDst[posDst++] = bufSrc[posSrc++]; - bufDst[posDst++] = bufSrc[posSrc++]; - } - } - }, - bilinearInterpolation: function(src, dst, options) { - - var wSrc = src.width; - var hSrc = src.height; - //console.log("wSrc="+wSrc + ", hSrc="+hSrc); - - var wDst = dst.width; - var hDst = dst.height; - //console.log("wDst="+wDst + ", hDst="+hDst); - - var bufSrc = src._data.data; - var bufDst = dst._data.data; - - var interpolate = function(k, kMin, vMin, kMax, vMax) { - // special case - k is integer - if (kMin === kMax) { - return vMin; - } - - return Math.round((k - kMin) * vMax + (kMax - k) * vMin); - }; - var assign = function(pos, offset, x, xMin, xMax, y, yMin, yMax) { - var posMin = (yMin * wSrc + xMin) * 4 + offset; - var posMax = (yMin * wSrc + xMax) * 4 + offset; - var vMin = interpolate(x, xMin, bufSrc[posMin], xMax, bufSrc[posMax]); - - // special case, y is integer - if (yMax === yMin) { - bufDst[pos+offset] = vMin; - } else { - posMin = (yMax * wSrc + xMin) * 4 + offset; - posMax = (yMax * wSrc + xMax) * 4 + offset; - var vMax = interpolate(x, xMin, bufSrc[posMin], xMax, bufSrc[posMax]); - - bufDst[pos+offset] = interpolate(y, yMin, vMin, yMax, vMax); - } - } - - for (var i = 0; i < hDst; i++) { - for (var j = 0; j < wDst; j++) { - var posDst = (i * wDst + j) * 4; - - // x & y in src coordinates - var x = j * wSrc / wDst; - var xMin = Math.floor(x); - var xMax = Math.min(Math.ceil(x), wSrc-1); - - var y = i * hSrc / hDst; - var yMin = Math.floor(y); - var yMax = Math.min(Math.ceil(y), hSrc-1); - - assign(posDst, 0, x, xMin, xMax, y, yMin, yMax); - assign(posDst, 1, x, xMin, xMax, y, yMin, yMax); - assign(posDst, 2, x, xMin, xMax, y, yMin, yMax); - assign(posDst, 3, x, xMin, xMax, y, yMin, yMax); - } - } - }, - - _interpolate2D: function(src, dst, options, interpolate) { - - var bufSrc = src._data.data; - var bufDst = dst._data.data; - - var wSrc = src.width; - var hSrc = src.height; - //console.log("wSrc="+wSrc + ", hSrc="+hSrc + ", srcLen="+bufSrc.length); - - var wDst = dst.width; - var hDst = dst.height; - //console.log("wDst="+wDst + ", hDst="+hDst + ", dstLen="+bufDst.length); - - // when dst smaller than src/2, interpolate first to a multiple between 0.5 and 1.0 src, then sum squares - var wM = Math.max(1, Math.floor(wSrc / wDst)); - var wDst2 = wDst * wM; - var hM = Math.max(1, Math.floor(hSrc / hDst)); - var hDst2 = hDst * hM; - //console.log("wM="+wM + ", wDst2="+wDst2 + ", hM="+hM + ", hDst2="+hDst2); - - // =========================================================== - // Pass 1 - interpolate rows - // buf1 has width of dst2 and height of src - var buf1 = new Buffer(wDst2 * hSrc * 4); - for (var i = 0; i < hSrc; i++) { - for (var j = 0; j < wDst2; j++) { - // i in src coords, j in dst coords - - // calculate x in src coords - // this interpolation requires 4 sample points and the two inner ones must be real - // the outer points can be fudged for the edges. - // therefore (wSrc-1)/wDst2 - var x = j * (wSrc-1) / wDst2; - var xPos = Math.floor(x); - var t = x - xPos; - var srcPos = (i * wSrc + xPos) * 4; - - var buf1Pos = (i * wDst2 + j) * 4; - for (var k = 0; k < 4; k++) { - var kPos = srcPos + k; - var x0 = (xPos > 0) ? bufSrc[kPos - 4] : 2*bufSrc[kPos]-bufSrc[kPos+4]; - var x1 = bufSrc[kPos]; - var x2 = bufSrc[kPos + 4]; - var x3 = (xPos < wSrc - 2) ? bufSrc[kPos + 8] : 2*bufSrc[kPos + 4]-bufSrc[kPos]; - buf1[buf1Pos+k] = interpolate(x0,x1,x2,x3,t); - } - } - } - //this._writeFile(wDst2, hSrc, buf1, "out/buf1.jpg"); - - // =========================================================== - // Pass 2 - interpolate columns - // buf2 has width and height of dst2 - var buf2 = new Buffer(wDst2 * hDst2 * 4); - for (var i = 0; i < hDst2; i++) { - for (var j = 0; j < wDst2; j++) { - // i&j in dst2 coords - - // calculate y in buf1 coords - // this interpolation requires 4 sample points and the two inner ones must be real - // the outer points can be fudged for the edges. - // therefore (hSrc-1)/hDst2 - var y = i * (hSrc-1) / hDst2; - var yPos = Math.floor(y); - var t = y - yPos; - var buf1Pos = (yPos * wDst2 + j) * 4; - var buf2Pos = (i * wDst2 + j) * 4; - for (var k = 0; k < 4; k++) { - var kPos = buf1Pos + k; - var y0 = (yPos > 0) ? buf1[kPos - wDst2*4] : 2*buf1[kPos]-buf1[kPos + wDst2*4]; - var y1 = buf1[kPos]; - var y2 = buf1[kPos + wDst2*4]; - var y3 = (yPos < hSrc-2) ? buf1[kPos + wDst2*8] : 2*buf1[kPos + wDst2*4]-buf1[kPos]; - - buf2[buf2Pos + k] = interpolate(y0,y1,y2,y3,t); - } - } - } - //this._writeFile(wDst2, hDst2, buf2, "out/buf2.jpg"); - - // =========================================================== - // Pass 3 - scale to dst - var m = wM * hM; - if (m > 1) { - for (var i = 0; i < hDst; i++) { - for (var j = 0; j < wDst; j++) { - // i&j in dst bounded coords - var r = 0; - var g = 0; - var b = 0; - var a = 0; - for (var y = 0; y < hM; y++) { - var yPos = i * hM + y; - for (var x = 0; x < wM; x++) { - var xPos = j * wM + x; - var xyPos = (yPos * wDst2 + xPos) * 4; - r += buf2[xyPos]; - g += buf2[xyPos+1]; - b += buf2[xyPos+2]; - a += buf2[xyPos+3]; - } - } - - var pos = (i*wDst + j) * 4; - bufDst[pos] = Math.round(r / m); - bufDst[pos+1] = Math.round(g / m); - bufDst[pos+2] = Math.round(b / m); - bufDst[pos+3] = Math.round(a / m); - } - } - } else { - // replace dst buffer with buf2 - dst._data.data = buf2; - } - }, - - bicubicInterpolation: function(src, dst, options) { - var interpolateCubic = function(x0, x1, x2, x3, t) { - var a0 = x3 - x2 - x0 + x1; - var a1 = x0 - x1 - a0; - var a2 = x2 - x0; - var a3 = x1; - return Math.max(0,Math.min(255,(a0 * (t * t * t)) + (a1 * (t * t)) + (a2 * t) + (a3))); - } - return this._interpolate2D(src, dst, options, interpolateCubic); - }, - - hermiteInterpolation: function(src, dst, options) { - var interpolateHermite = function(x0, x1, x2, x3, t) - { - var c0 = x1; - var c1 = 0.5 * (x2 - x0); - var c2 = x0 - (2.5 * x1) + (2 * x2) - (0.5 * x3); - var c3 = (0.5 * (x3 - x0)) + (1.5 * (x1 - x2)); - return Math.max(0,Math.min(255,Math.round((((((c3 * t) + c2) * t) + c1) * t) + c0))); - } - return this._interpolate2D(src, dst, options, interpolateHermite); - }, - - bezierInterpolation: function(src, dst, options) { - // between 2 points y(n), y(n+1), use next points out, y(n-1), y(n+2) - // to predict control points (a & b) to be placed at n+0.5 - // ya(n) = y(n) + (y(n+1)-y(n-1))/4 - // yb(n) = y(n+1) - (y(n+2)-y(n))/4 - // then use std bezier to interpolate [n,n+1) - // y(n+t) = y(n)*(1-t)^3 + 3 * ya(n)*(1-t)^2*t + 3 * yb(n)*(1-t)*t^2 + y(n+1)*t^3 - // note the 3* factor for the two control points - // for edge cases, can choose: - // y(-1) = y(0) - 2*(y(1)-y(0)) - // y(w) = y(w-1) + 2*(y(w-1)-y(w-2)) - // but can go with y(-1) = y(0) and y(w) = y(w-1) - var interpolateBezier = function(x0, x1, x2, x3, t) { - // x1, x2 are the knots, use x0 and x3 to calculate control points - var cp1 = x1 + (x2-x0)/4; - var cp2 = x2 - (x3-x1)/4; - var nt = 1-t; - var c0 = x1 * nt * nt * nt; - var c1 = 3 * cp1 * nt * nt * t; - var c2 = 3 * cp2 * nt * t * t; - var c3 = x2 * t * t * t; - return Math.max(0,Math.min(255,Math.round(c0 + c1 + c2 + c3))); - } - return this._interpolate2D(src, dst, options, interpolateBezier); - } +/** + * Copyright (c) 2015 Guyon Roche + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions:

+ * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +"use strict"; + +var fs = require("fs"); +var _ = require("underscore"); +var Promise = require("bluebird"); +var jpeg = require("jpeg-js"); +//var png = require("png-js"); +var PNG = require("node-png").PNG; + +var Enums = require("./enums"); +var Utils = require("./utils"); +var Resize = require("./resize"); +//var Graphics = require("./graphics"); + +// default pad colour +var transparentBlack = { + r: 0, g: 0, b: 0, a: 0 +}; + +var Bitmap = module.exports = function(options) { + if (options) { + if (options instanceof Bitmap) { + this._data = { + data: new Buffer(options.data.data), + width: options.width, + height: options.height + }; + } else if (options.data) { + // attach to supplied data + this._data = options; + } else if (options.width && options.height) { + // construct new bitmap + this._data = { + data: new Buffer(4 * options.width * options.height), + width: options.width, + height: options.height + }; + + // optional colour + if (options.color) { + this._fill(options.color); + } + } + } +}; + +Bitmap.prototype = { + get width() { + return this._data.width; + }, + get height() { + return this._data.height; + }, + //get graphics() { + // if (!this._graphics) { + // this._graphics = new Graphics(this); + // } + // return this._graphics; + //}, + + attach: function(data) { + var prev = this._data; + this._data = data; + return prev; + }, + detach: function() { + var data = this._data; + delete this._data; + return data; + }, + + _deduceFileType: function(filename) { + if (!filename) { + throw new Error("Can't determine image type"); + } + switch (filename.substr(-4).toLowerCase()) { + case ".jpg": + return Enums.ImageType.JPG; + case ".png": + return Enums.ImageType.PNG; + } + if (filename.substr(-5).toLowerCase() == ".jpeg") { + return Enums.ImageType.JPG; + } + throw new Error("Can't recognise image type: " + filename); + }, + + _readStream: function(stream) { + var self = this; + var deferred = Promise.defer(); + + var chunks = []; + stream.on('data', function(chunk) { + chunks.push(chunk); + }); + stream.on('end', function() { + var data = Buffer.concat(chunks); + deferred.resolve(data); + }); + stream.on('error', function(error) { + deferred.reject(error); + }); + + return deferred.promise; + }, + _readPNG: function(stream) { + var deferred = Promise.defer(); + + var png = new PNG({filterType: 4}); + png.on('parsed', function() { + deferred.resolve(png); + }); + png.on('error', function(error) { + deferred.rejecyt(error); + }); + stream.pipe(png); + + return deferred.promise; + }, + _parseOptions: function(options, filename) { + options = options || {}; + if (typeof options === "number") { + options = { type: options }; + } + options.type = options.type || this._deduceFileType(filename); + return options; + }, + read: function(stream, options) { + var self = this; + options = this._parseOptions(options); + + switch(options.type) { + case Enums.ImageType.JPG: + return this._readStream(stream) + .then(function(data) { + self._data = jpeg.decode(data); + }); + case Enums.ImageType.PNG: + return this._readPNG(stream) + .then(function(png) { + self._data = { + data: png.data, + width: png.width, + height: png.height + }; + }); + default: + return Promise.reject(new Error("Not supported: ImageType " + options.type)); + } + }, + readFile: function(filename, options) { + var self = this; + return Utils.fs.exists(filename) + .then(function(exists) { + if (exists) { + options = self._parseOptions(options, filename); + var stream = fs.createReadStream(filename); + return self.read(stream, options); + } else { + throw new Error("File Not Found: " + filename); + } + }); + }, + + write: function(stream, options) { + options = this._parseOptions(options); + var deferred = Promise.defer(); + try { + stream.on('finish', function() { + deferred.resolve(); + }); + stream.on('error', function(error) { + deferred.reject(error); + }); + + switch(options.type) { + case Enums.ImageType.JPG: + var buffer = jpeg.encode(this._data, options.quality || 90).data; + stream.write(buffer); + stream.end(); + break; + case Enums.ImageType.PNG: + var png = new PNG(); + png.width = this.width; + png.height = this.height; + png.data = this._data.data; + png.on('end', function() { + deferred.resolve(); + }); + png.on('error', function(error) { + deferred.reject(error); + }); + png.pack().pipe(stream); + break; + default: + throw new Error("Not supported: ImageType " + options.type); + } + } + catch(ex) { + deferred.reject(ex); + } + return deferred.promise; + }, + writeFile: function(filename, options) { + options = this._parseOptions(options, filename); + var stream = fs.createWriteStream(filename); + return this.write(stream, options); + }, + + clone: function() { + return new Bitmap({ + width: this.width, + height: this.height, + data: new Buffer(this._data.data) + }); + }, + + setPixel: function(x,y, r,g,b,a) { + if (g === undefined) { + var color = r; + r = color.r; + g = color.g; + b = color.b; + a = color.a; + } + if (a === undefined) a = 255; + var pos = (y * this.width + x) * 4; + var buffer = this._data.data; + buffer[pos++] = r; + buffer[pos++] = g; + buffer[pos++] = b; + buffer[pos++] = a; + }, + getPixel: function(x,y, color) { + var pos = (y * this.width + x) * 4; + color = color || {}; + var buffer = this._data.data; + color.r = buffer[pos++]; + color.g = buffer[pos++]; + color.b = buffer[pos++]; + color.a = buffer[pos++]; + return color; + }, + + negative: function() { + var that = new Bitmap({width: this.width, height: this.height}); + var n = this.width * this.height; + + var src = this._data.data; + var dst = that._data.data; + var srcPos = 0; + var dstPos = 0; + for (var i = 0; i < n; i++) { + dst[dstPos++] = 255 - src[srcPos++]; + dst[dstPos++] = 255 - src[srcPos++]; + dst[dstPos++] = 255 - src[srcPos++]; + dst[dstPos++] = src[srcPos++]; + } + return that; + }, + + resize: function(options) { + var that = new Bitmap(options); + var temp; + switch (options.fit) { + case "pad": // fit all of src in dst with aspect ratio preserved. + var padColor = options.padColor || transparentBlack; + var srcAr = this.width / this.height; + var w2 = Math.round(srcAr * that.height); + var h2 = Math.round(that.width / srcAr); + var wMargin = 0; + var hMargin = 0; + if (w2 < that.width) { + // pad sides + temp = new Bitmap({width: w2, height: that.height}); + wMargin = (that.width - w2) / 2; + that._fill(padColor, 0, 0, Math.floor(wMargin), that.height); + that._fill(padColor, that.width - Math.ceil(wMargin), 0, Math.ceil(wMargin), that.height); + + Resize[options.algorithm](this, temp, options); + that._blt(temp, {left: Math.floor(wMargin), top: Math.floor(hMargin)}); + } else if (h2 < that.height) { + // pad top & bottom + temp = new Bitmap({width: that.width, height: h2}); + hMargin = (that.height - h2) / 2; + that._fill(padColor, 0, 0, that.width, Math.floor(hMargin)); + that._fill(padColor, 0, that.height - Math.ceil(hMargin), that.width, Math.ceil(hMargin)); + + Resize[options.algorithm](this, temp, options); + that._blt(temp, {left: Math.floor(wMargin), top: Math.floor(hMargin)}); + } else { + // stretch straight into that + Resize[options.algorithm](this, that, options); + } + break; + case "crop": // crop original to fit in dst with aspect ratio preserved + var gravity = options.gravity || {x: 0.5, y: 0.5}; + var dstAr = that.width / that.height; + var w2 = Math.round(dstAr * this.height); + var h2 = Math.round(this.width / dstAr); + if (w2 < this.width) { + // crop src width + var dw = this.width - w2; + temp = this.crop({left: Math.round(gravity.x * dw), top: 0, width: w2, height: this.height}); + } else if (h2 < this.height) { + // crop src height + var dh = this.height - h2; + temp = this.crop({left: 0, top: Math.round(gravity.y * dh), width: this.width, height: h2}); + } else { + temp = this; + } + Resize[options.algorithm](temp, that, options); + break; + case "stretch": + default: + Resize[options.algorithm](this, that, options); + break; + } + + return that; + }, + + rotate: function(options) { + // TODO: crop, user supplied dst width, height + + // options.degrees || options.radians; + // options.fit = ['pad','crop','same'] + // options.padColor + var radians = options.radians !== undefined ? options.radians : 3.141592653589793 * options.degrees / 180; + if (radians < 0.000000001) { + return new Bitmap(this); + } + //console.log("radians=" + radians); + + var rotators = { + forward: { + cos: Math.cos(radians), + sin: Math.sin(radians) + }, + backward: { + cos: Math.cos(-radians), + sin: Math.sin(-radians) + } + } + //console.log("cos=" + cos + ", sin=" + sin) + + var srcWidth = this.width; + var srcHeight = this.height; + var srcWidthHalf = srcWidth / 2; + var srcHeightHalf = srcHeight / 2; + + var padColor = options.padColor || transparentBlack; + var padArray = [padColor.r, padColor.g, padColor.b, padColor.a]; + var rotate = function(point, rotator) { + // in-place rotation of point + var x = rotator.cos * point.x - rotator.sin * point.y; + var y = rotator.sin * point.x + rotator.cos * point.y; + point.x = x; + point.y = y; + return point; + }; + var cropToSource = function(point) { + var m = Math.abs(point.x/srcWidthHalf); + var n = Math.abs(point.y/srcHeightHalf); + return Math.max(m,n); + }; + + var dstWidth, dstHeight; + switch (options.fit) { + case 'custom': + dstWidth = options.width; + dstHeight = options.height; + break; + case 'pad': + // entire src fits in dst + var tl = rotate({x:-srcWidthHalf,y:srcHeightHalf}, rotators.forward); + var tr = rotate({x:srcWidthHalf,y:srcHeightHalf}, rotators.forward); + var bl = rotate({x:-srcWidthHalf,y:-srcHeightHalf}, rotators.forward); + var br = rotate({x:srcWidthHalf,y:-srcHeightHalf}, rotators.forward); + dstWidth = Math.round(Math.max(tl.x,tr.x,bl.x,br.x) - Math.min(tl.x,tr.x,bl.x,br.x)); + dstHeight = Math.round(Math.max(tl.y,tr.y,bl.y,br.y) - Math.min(tl.y,tr.y,bl.y,br.y)); + break; + case 'crop': + var tl = rotate({x:-srcWidthHalf,y:srcHeightHalf}, rotators.forward); + var tr = rotate({x:srcWidthHalf,y:srcHeightHalf}, rotators.forward); + var bl = rotate({x:-srcWidthHalf,y:-srcHeightHalf}, rotators.forward); + var br = rotate({x:srcWidthHalf,y:-srcHeightHalf}, rotators.forward); + var d = Math.max(cropToSource(tl), cropToSource(tr), cropToSource(bl), cropToSource(br)); + dstWidth = Math.floor(srcWidth / d); + dstHeight = Math.floor(srcHeight / d); + break; + case 'same': + default: + // dst is same size as src + dstWidth = srcWidth; + dstHeight = srcHeight; + break; + } + + var that = new Bitmap({width: dstWidth, height: dstHeight}); + + var srcBuf = this._data.data; + var dstBuf = that._data.data; + + // we will rotate the destination pixels back to the source and interpolate the colour + var srcCoord = {}; + var dstWidthHalf = dstWidth / 2; + var dstHeightHalf = dstHeight / 2; + var dstWidth4 = dstWidth * 4; + var srcWidth4 = srcWidth * 4; + + //console.log("src=[" + srcWidth + "," + srcHeight + "]") + //console.log("dst=[" + dstWidth + "," + dstHeight + "]") + for (var i = 0; i < dstHeight; i++) { + for (var j = 0; j < dstWidth; j++) { + // calculate src coords + srcCoord.x = j - dstWidthHalf; + srcCoord.y = dstHeightHalf - i; + //console.log("x=" + srcCoord.x + ", y=" + srcCoord.y); + rotate(srcCoord, rotators.backward); + //console.log(" ==> x=" + srcCoord.x + ", y=" + srcCoord.y); + + // srcX and SrcY are in src coords + var srcX = srcCoord.x + srcWidthHalf; + var srcY = srcHeightHalf - srcCoord.y; + //console.log("srcX=" + srcX + ", srcY=" + srcY); + + // now interpolate (bilinear! + var dstPos = (i * dstWidth + j) * 4; + //console.log("dstPos=" + dstPos) + if ((srcX > -1) && (srcX < srcWidth) && (srcY > -1) && (srcY < srcHeight)) { + var srcPosX = Math.floor(srcX); + var srcPosY = Math.floor(srcY); + var srcPos = (srcPosY * srcWidth + srcPosX) * 4; + for (var k = 0; k < 4; k++) { + var kSrcPos = srcPos + k; + var kPad = padArray[k]; + + var tl = ((srcX >= 0) && (srcY >= 0)) ? srcBuf[kSrcPos] : kPad; + var tr = ((srcX < srcWidth-1) && (srcY >= 0)) ? srcBuf[kSrcPos+4] : kPad; + var bl = ((srcX >= 0) && (srcY < srcHeight-1)) ? srcBuf[kSrcPos + srcWidth4] : kPad; + var br = ((srcX < srcWidth-1) && (srcY < srcHeight-1)) ? srcBuf[kSrcPos + srcWidth4 + 4] : kPad; + + var tx = srcX - srcPosX; + var ty = srcY - srcPosY; + + var t = (1-tx) * tl + tx * tr; + var b = (1-tx) * bl + tx * br; + dstBuf[dstPos++] = (1-ty) * t + ty * b; + } + } else { + dstBuf[dstPos++] = padColor.r; + dstBuf[dstPos++] = padColor.g; + dstBuf[dstPos++] = padColor.b; + dstBuf[dstPos++] = padColor.a; + } + } + } + return that; + }, + + crop: function(options) { + var t = options.top; + var l = options.left; + var w = options.width; + var h = options.height; + //console.log("Crop: l="+l + ", t="+t + ", w="+w + ", h="+h); + + var that = new Bitmap({width: w, height: h}); + + var srcBuf = this._data.data; + var dstBuf = that._data.data; + + var w4 = w * 4; + for (var i = 0; i < h; i++) { + var srcPos = ((i+t)*this.width + l) * 4; + var dstPos = i * w * 4; + srcBuf.copy(dstBuf, dstPos, srcPos, srcPos + w4); + } + return that; + }, + + blur: function(options) { + // todo: expand to own file with different blur algorithms + var that = new Bitmap({width: this.width, height: this.height}); + var w = this.width; + var h = this.height; + + var W = w-1; + var H = h-1; + + var V = w*4; // used for i offsets + + var src = this._data.data; + var dst = that._data.data; + for (var i = 0; i < h; i++) { + for (var j = 0; j < w; j++) { + for (var k = 0; k < 4; k++) { + var pos = (i*w + j) * 4 + k; + var t = src[pos -(i>0?V:0) - (j>0?4:0)] * 1 + // 1/16 + src[pos -(i>0?V:0) ] * 2 + // 2/16 + src[pos -(i>0?V:0) + (j0?4:0)] * 2 + // 2/16 + src[pos ] * 4 + // 4/16 + src[pos + (j0?4:0)] * 1 + // 1/16 + src[pos +(i - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ -"use strict"; - -var fs = require("fs"); -var _ = require("underscore"); -var Promise = require("bluebird"); - - -var utils = module.exports = { - - // Promisification of fs - fs: { - exists: function(filename) { - var deferred = Promise.defer(); - fs.exists(filename, function(exists) { - deferred.resolve(exists); - }); - return deferred.promise; - } - } +},{"./enums":64,"./resize":65,"./utils":66,"bluebird":3,"buffer":47,"fs":46,"jpeg-js":67,"node-png":92,"underscore":145}],64:[function(require,module,exports){ +/** + * Copyright (c) 2015 Guyon Roche + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions:

+ * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +"use strict"; + +module.exports = { + ImageType: { + JPG: 1, + PNG: 2 + } +}; +},{}],65:[function(require,module,exports){ +(function (Buffer){ +/** + * Copyright (c) 2015 Guyon Roche + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions:

+ * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +"use strict"; + +var _ = require("underscore"); +var Promise = require("bluebird"); + +module.exports = { + _writeFile: function(width, height, data, filename) { + // for debugging + + var Bitmap = require("./bitmap"); + var bmp = new Bitmap({ + width: width, height: height, + data: data + }); + bmp.writeFile(filename); + }, + + nearestNeighbor: function(src, dst, options) { + + var wSrc = src.width; + var hSrc = src.height; + //console.log("wSrc="+wSrc + ", hSrc="+hSrc); + + var wDst = dst.width; + var hDst = dst.height; + //console.log("wDst="+wDst + ", hDst="+hDst); + + var bufSrc = src._data.data; + var bufDst = dst._data.data; + + for (var i = 0; i < hDst; i++) { + for (var j = 0; j < wDst; j++) { + var posDst = (i * wDst + j) * 4; + + var iSrc = Math.round(i * hSrc / hDst); + var jSrc = Math.round(j * wSrc / wDst); + var posSrc = (iSrc * wSrc + jSrc) * 4; + + bufDst[posDst++] = bufSrc[posSrc++]; + bufDst[posDst++] = bufSrc[posSrc++]; + bufDst[posDst++] = bufSrc[posSrc++]; + bufDst[posDst++] = bufSrc[posSrc++]; + } + } + }, + bilinearInterpolation: function(src, dst, options) { + + var wSrc = src.width; + var hSrc = src.height; + //console.log("wSrc="+wSrc + ", hSrc="+hSrc); + + var wDst = dst.width; + var hDst = dst.height; + //console.log("wDst="+wDst + ", hDst="+hDst); + + var bufSrc = src._data.data; + var bufDst = dst._data.data; + + var interpolate = function(k, kMin, vMin, kMax, vMax) { + // special case - k is integer + if (kMin === kMax) { + return vMin; + } + + return Math.round((k - kMin) * vMax + (kMax - k) * vMin); + }; + var assign = function(pos, offset, x, xMin, xMax, y, yMin, yMax) { + var posMin = (yMin * wSrc + xMin) * 4 + offset; + var posMax = (yMin * wSrc + xMax) * 4 + offset; + var vMin = interpolate(x, xMin, bufSrc[posMin], xMax, bufSrc[posMax]); + + // special case, y is integer + if (yMax === yMin) { + bufDst[pos+offset] = vMin; + } else { + posMin = (yMax * wSrc + xMin) * 4 + offset; + posMax = (yMax * wSrc + xMax) * 4 + offset; + var vMax = interpolate(x, xMin, bufSrc[posMin], xMax, bufSrc[posMax]); + + bufDst[pos+offset] = interpolate(y, yMin, vMin, yMax, vMax); + } + } + + for (var i = 0; i < hDst; i++) { + for (var j = 0; j < wDst; j++) { + var posDst = (i * wDst + j) * 4; + + // x & y in src coordinates + var x = j * wSrc / wDst; + var xMin = Math.floor(x); + var xMax = Math.min(Math.ceil(x), wSrc-1); + + var y = i * hSrc / hDst; + var yMin = Math.floor(y); + var yMax = Math.min(Math.ceil(y), hSrc-1); + + assign(posDst, 0, x, xMin, xMax, y, yMin, yMax); + assign(posDst, 1, x, xMin, xMax, y, yMin, yMax); + assign(posDst, 2, x, xMin, xMax, y, yMin, yMax); + assign(posDst, 3, x, xMin, xMax, y, yMin, yMax); + } + } + }, + + _interpolate2D: function(src, dst, options, interpolate) { + + var bufSrc = src._data.data; + var bufDst = dst._data.data; + + var wSrc = src.width; + var hSrc = src.height; + //console.log("wSrc="+wSrc + ", hSrc="+hSrc + ", srcLen="+bufSrc.length); + + var wDst = dst.width; + var hDst = dst.height; + //console.log("wDst="+wDst + ", hDst="+hDst + ", dstLen="+bufDst.length); + + // when dst smaller than src/2, interpolate first to a multiple between 0.5 and 1.0 src, then sum squares + var wM = Math.max(1, Math.floor(wSrc / wDst)); + var wDst2 = wDst * wM; + var hM = Math.max(1, Math.floor(hSrc / hDst)); + var hDst2 = hDst * hM; + //console.log("wM="+wM + ", wDst2="+wDst2 + ", hM="+hM + ", hDst2="+hDst2); + + // =========================================================== + // Pass 1 - interpolate rows + // buf1 has width of dst2 and height of src + var buf1 = new Buffer(wDst2 * hSrc * 4); + for (var i = 0; i < hSrc; i++) { + for (var j = 0; j < wDst2; j++) { + // i in src coords, j in dst coords + + // calculate x in src coords + // this interpolation requires 4 sample points and the two inner ones must be real + // the outer points can be fudged for the edges. + // therefore (wSrc-1)/wDst2 + var x = j * (wSrc-1) / wDst2; + var xPos = Math.floor(x); + var t = x - xPos; + var srcPos = (i * wSrc + xPos) * 4; + + var buf1Pos = (i * wDst2 + j) * 4; + for (var k = 0; k < 4; k++) { + var kPos = srcPos + k; + var x0 = (xPos > 0) ? bufSrc[kPos - 4] : 2*bufSrc[kPos]-bufSrc[kPos+4]; + var x1 = bufSrc[kPos]; + var x2 = bufSrc[kPos + 4]; + var x3 = (xPos < wSrc - 2) ? bufSrc[kPos + 8] : 2*bufSrc[kPos + 4]-bufSrc[kPos]; + buf1[buf1Pos+k] = interpolate(x0,x1,x2,x3,t); + } + } + } + //this._writeFile(wDst2, hSrc, buf1, "out/buf1.jpg"); + + // =========================================================== + // Pass 2 - interpolate columns + // buf2 has width and height of dst2 + var buf2 = new Buffer(wDst2 * hDst2 * 4); + for (var i = 0; i < hDst2; i++) { + for (var j = 0; j < wDst2; j++) { + // i&j in dst2 coords + + // calculate y in buf1 coords + // this interpolation requires 4 sample points and the two inner ones must be real + // the outer points can be fudged for the edges. + // therefore (hSrc-1)/hDst2 + var y = i * (hSrc-1) / hDst2; + var yPos = Math.floor(y); + var t = y - yPos; + var buf1Pos = (yPos * wDst2 + j) * 4; + var buf2Pos = (i * wDst2 + j) * 4; + for (var k = 0; k < 4; k++) { + var kPos = buf1Pos + k; + var y0 = (yPos > 0) ? buf1[kPos - wDst2*4] : 2*buf1[kPos]-buf1[kPos + wDst2*4]; + var y1 = buf1[kPos]; + var y2 = buf1[kPos + wDst2*4]; + var y3 = (yPos < hSrc-2) ? buf1[kPos + wDst2*8] : 2*buf1[kPos + wDst2*4]-buf1[kPos]; + + buf2[buf2Pos + k] = interpolate(y0,y1,y2,y3,t); + } + } + } + //this._writeFile(wDst2, hDst2, buf2, "out/buf2.jpg"); + + // =========================================================== + // Pass 3 - scale to dst + var m = wM * hM; + if (m > 1) { + for (var i = 0; i < hDst; i++) { + for (var j = 0; j < wDst; j++) { + // i&j in dst bounded coords + var r = 0; + var g = 0; + var b = 0; + var a = 0; + for (var y = 0; y < hM; y++) { + var yPos = i * hM + y; + for (var x = 0; x < wM; x++) { + var xPos = j * wM + x; + var xyPos = (yPos * wDst2 + xPos) * 4; + r += buf2[xyPos]; + g += buf2[xyPos+1]; + b += buf2[xyPos+2]; + a += buf2[xyPos+3]; + } + } + + var pos = (i*wDst + j) * 4; + bufDst[pos] = Math.round(r / m); + bufDst[pos+1] = Math.round(g / m); + bufDst[pos+2] = Math.round(b / m); + bufDst[pos+3] = Math.round(a / m); + } + } + } else { + // replace dst buffer with buf2 + dst._data.data = buf2; + } + }, + + bicubicInterpolation: function(src, dst, options) { + var interpolateCubic = function(x0, x1, x2, x3, t) { + var a0 = x3 - x2 - x0 + x1; + var a1 = x0 - x1 - a0; + var a2 = x2 - x0; + var a3 = x1; + return Math.max(0,Math.min(255,(a0 * (t * t * t)) + (a1 * (t * t)) + (a2 * t) + (a3))); + } + return this._interpolate2D(src, dst, options, interpolateCubic); + }, + + hermiteInterpolation: function(src, dst, options) { + var interpolateHermite = function(x0, x1, x2, x3, t) + { + var c0 = x1; + var c1 = 0.5 * (x2 - x0); + var c2 = x0 - (2.5 * x1) + (2 * x2) - (0.5 * x3); + var c3 = (0.5 * (x3 - x0)) + (1.5 * (x1 - x2)); + return Math.max(0,Math.min(255,Math.round((((((c3 * t) + c2) * t) + c1) * t) + c0))); + } + return this._interpolate2D(src, dst, options, interpolateHermite); + }, + + bezierInterpolation: function(src, dst, options) { + // between 2 points y(n), y(n+1), use next points out, y(n-1), y(n+2) + // to predict control points (a & b) to be placed at n+0.5 + // ya(n) = y(n) + (y(n+1)-y(n-1))/4 + // yb(n) = y(n+1) - (y(n+2)-y(n))/4 + // then use std bezier to interpolate [n,n+1) + // y(n+t) = y(n)*(1-t)^3 + 3 * ya(n)*(1-t)^2*t + 3 * yb(n)*(1-t)*t^2 + y(n+1)*t^3 + // note the 3* factor for the two control points + // for edge cases, can choose: + // y(-1) = y(0) - 2*(y(1)-y(0)) + // y(w) = y(w-1) + 2*(y(w-1)-y(w-2)) + // but can go with y(-1) = y(0) and y(w) = y(w-1) + var interpolateBezier = function(x0, x1, x2, x3, t) { + // x1, x2 are the knots, use x0 and x3 to calculate control points + var cp1 = x1 + (x2-x0)/4; + var cp2 = x2 - (x3-x1)/4; + var nt = 1-t; + var c0 = x1 * nt * nt * nt; + var c1 = 3 * cp1 * nt * nt * t; + var c2 = 3 * cp2 * nt * t * t; + var c3 = x2 * t * t * t; + return Math.max(0,Math.min(255,Math.round(c0 + c1 + c2 + c3))); + } + return this._interpolate2D(src, dst, options, interpolateBezier); + } } -},{"bluebird":7,"fs":11,"underscore":147}],52:[function(require,module,exports){ +}).call(this,require("buffer").Buffer) +},{"./bitmap":63,"bluebird":3,"buffer":47,"underscore":145}],66:[function(require,module,exports){ +/** + * Copyright (c) 2015 Guyon Roche + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions:

+ * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + */ +"use strict"; + +var fs = require("fs"); +var _ = require("underscore"); +var Promise = require("bluebird"); + + +var utils = module.exports = { + + // Promisification of fs + fs: { + exists: function(filename) { + var deferred = Promise.defer(); + fs.exists(filename, function(exists) { + deferred.resolve(exists); + }); + return deferred.promise; + } + } +} +},{"bluebird":3,"fs":46,"underscore":145}],67:[function(require,module,exports){ var encode = require('./lib/encoder'), decode = require('./lib/decoder'); @@ -16605,7 +23643,7 @@ module.exports = { decode: decode }; -},{"./lib/decoder":53,"./lib/encoder":54}],53:[function(require,module,exports){ +},{"./lib/decoder":68,"./lib/encoder":69}],68:[function(require,module,exports){ (function (Buffer){ /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- / /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ @@ -17595,7 +24633,7 @@ function decode(jpegData) { } }).call(this,require("buffer").Buffer) -},{"buffer":12}],54:[function(require,module,exports){ +},{"buffer":47}],69:[function(require,module,exports){ (function (Buffer){ /* Copyright (c) 2008, Adobe Systems Incorporated @@ -18365,9 +25403,9 @@ function getImageDataFromImage(idOrElement){ } }).call(this,require("buffer").Buffer) -},{"buffer":12}],55:[function(require,module,exports){ -arguments[4][2][0].apply(exports,arguments) -},{"dup":2}],56:[function(require,module,exports){ +},{"buffer":47}],70:[function(require,module,exports){ +arguments[4][41][0].apply(exports,arguments) +},{"dup":41}],71:[function(require,module,exports){ "use strict" function iota(n) { @@ -18379,7 +25417,7 @@ function iota(n) { } module.exports = iota -},{}],57:[function(require,module,exports){ +},{}],72:[function(require,module,exports){ /*! * Determine if an object is a Buffer * @@ -18402,14 +25440,12 @@ function isSlowBuffer (obj) { return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) } -},{}],58:[function(require,module,exports){ -var toString = {}.toString; - +},{}],73:[function(require,module,exports){ module.exports = Array.isArray || function (arr) { - return toString.call(arr) == '[object Array]'; + return Object.prototype.toString.call(arr) == '[object Array]'; }; -},{}],59:[function(require,module,exports){ +},{}],74:[function(require,module,exports){ (function webpackUniversalModuleDefinition(root, factory) { if(typeof exports === 'object' && typeof module === 'object') module.exports = factory(); @@ -28433,7 +35469,7 @@ exports.locate = locate; /***/ }) /******/ ])["default"]; }); -},{}],60:[function(require,module,exports){ +},{}],75:[function(require,module,exports){ (function (global){ /** * @license @@ -45544,7 +52580,7 @@ exports.locate = locate; }.call(this)); }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{}],61:[function(require,module,exports){ +},{}],76:[function(require,module,exports){ (function (process){ var path = require('path'); var fs = require('fs'); @@ -45656,357 +52692,357 @@ mime.charsets = { module.exports = mime; }).call(this,require('_process')) -},{"./types.json":62,"_process":114,"fs":11,"path":91}],62:[function(require,module,exports){ +},{"./types.json":77,"_process":117,"fs":46,"path":95}],77:[function(require,module,exports){ 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-},{}],63:[function(require,module,exports){ -'use strict' - -var ops = require('ndarray-ops') -var ndarray = require('ndarray') -var pool = require('typedarray-pool') -var fftm = require('./lib/fft-matrix.js') - -function ndfft(dir, x, y) { - var shape = x.shape - , d = shape.length - , size = 1 - , stride = new Array(d) - , pad = 0 - , i, j - for(i=d-1; i>=0; --i) { - stride[i] = size - size *= shape[i] - pad = Math.max(pad, fftm.scratchMemory(shape[i])) - if(x.shape[i] !== y.shape[i]) { - throw new Error('Shape mismatch, real and imaginary arrays must have same size') - } - } - var buf_size = 4 * size + pad - var buffer - if( x.dtype === 'array' || - x.dtype === 'float64' || - x.dtype === 'custom' ) { - buffer = pool.mallocDouble(buf_size) - } else { - buffer = pool.mallocFloat(buf_size) - } - var x1 = ndarray(buffer, shape.slice(0), stride, 0) - , y1 = ndarray(buffer, shape.slice(0), stride.slice(0), size) - , x2 = ndarray(buffer, shape.slice(0), stride.slice(0), 2*size) - , y2 = ndarray(buffer, shape.slice(0), stride.slice(0), 3*size) - , tmp, n, s1, s2 - , scratch_ptr = 4 * size - - //Copy into x1/y1 - ops.assign(x1, x) - ops.assign(y1, y) - - for(i=d-1; i>=0; --i) { - fftm(dir, size/shape[i], shape[i], buffer, x1.offset, y1.offset, scratch_ptr) - if(i === 0) { - break - } - - //Compute new stride for x2/y2 - n = 1 - s1 = x2.stride - s2 = y2.stride - for(j=i-1; j=0; --j) { - s2[j] = s1[j] = n - n *= shape[j] - } - - //Transpose - ops.assign(x2, x1) - ops.assign(y2, y1) - - //Swap buffers - tmp = x1 - x1 = x2 - x2 = tmp - tmp = y1 - y1 = y2 - y2 = tmp - } - - //Copy result back into x - ops.assign(x, x1) - ops.assign(y, y1) - - pool.free(buffer) -} - -module.exports = ndfft -},{"./lib/fft-matrix.js":64,"ndarray":69,"ndarray-ops":66,"typedarray-pool":146}],64:[function(require,module,exports){ -var bits = require('bit-twiddle') - -function fft(dir, nrows, ncols, buffer, x_ptr, y_ptr, scratch_ptr) { - dir |= 0 - nrows |= 0 - ncols |= 0 - x_ptr |= 0 - y_ptr |= 0 - if(bits.isPow2(ncols)) { - fftRadix2(dir, nrows, ncols, buffer, x_ptr, y_ptr) - } else { - fftBluestein(dir, nrows, ncols, buffer, x_ptr, y_ptr, scratch_ptr) - } -} -module.exports = fft - -function scratchMemory(n) { - if(bits.isPow2(n)) { - return 0 - } - return 2 * n + 4 * bits.nextPow2(2*n + 1) -} -module.exports.scratchMemory = scratchMemory - - -//Radix 2 FFT Adapted from Paul Bourke's C Implementation -function fftRadix2(dir, nrows, ncols, buffer, x_ptr, y_ptr) { - dir |= 0 - nrows |= 0 - ncols |= 0 - x_ptr |= 0 - y_ptr |= 0 - var nn,m,i,i1,j,k,i2,l,l1,l2 - var c1,c2,t,t1,t2,u1,u2,z,row,a,b,c,d,k1,k2,k3 - - // Calculate the number of points - nn = ncols - m = bits.log2(nn) - - for(row=0; row> 1; - j = 0; - for(i=0;i>= 1 - } - j += k - } - - // Compute the FFT - c1 = -1.0 - c2 = 0.0 - l2 = 1 - for(l=0;l=0; --i) { + stride[i] = size + size *= shape[i] + pad = Math.max(pad, fftm.scratchMemory(shape[i])) + if(x.shape[i] !== y.shape[i]) { + throw new Error('Shape mismatch, real and imaginary arrays must have same size') + } + } + var buf_size = 4 * size + pad + var buffer + if( x.dtype === 'array' || + x.dtype === 'float64' || + x.dtype === 'custom' ) { + buffer = pool.mallocDouble(buf_size) + } else { + buffer = pool.mallocFloat(buf_size) + } + var x1 = ndarray(buffer, shape.slice(0), stride, 0) + , y1 = ndarray(buffer, shape.slice(0), stride.slice(0), size) + , x2 = ndarray(buffer, shape.slice(0), stride.slice(0), 2*size) + , y2 = ndarray(buffer, shape.slice(0), stride.slice(0), 3*size) + , tmp, n, s1, s2 + , scratch_ptr = 4 * size + + //Copy into x1/y1 + ops.assign(x1, x) + ops.assign(y1, y) + + for(i=d-1; i>=0; --i) { + fftm(dir, size/shape[i], shape[i], buffer, x1.offset, y1.offset, scratch_ptr) + if(i === 0) { + break + } + + //Compute new stride for x2/y2 + n = 1 + s1 = x2.stride + s2 = y2.stride + for(j=i-1; j=0; --j) { + s2[j] = s1[j] = n + n *= shape[j] + } + + //Transpose + ops.assign(x2, x1) + ops.assign(y2, y1) + + //Swap buffers + tmp = x1 + x1 = x2 + x2 = tmp + tmp = y1 + y1 = y2 + y2 = tmp + } + + //Copy result back into x + ops.assign(x, x1) + ops.assign(y, y1) + + pool.free(buffer) } -},{"cwise/lib/wrapper":20,"dup":22,"ndarray":69,"ndarray-fft":63,"ndarray-ops":66,"next-pow-2":70,"typedarray-pool":146}],66:[function(require,module,exports){ + +module.exports = ndfft +},{"./lib/fft-matrix.js":79,"ndarray":84,"ndarray-ops":81,"typedarray-pool":144}],79:[function(require,module,exports){ +var bits = require('bit-twiddle') + +function fft(dir, nrows, ncols, buffer, x_ptr, y_ptr, scratch_ptr) { + dir |= 0 + nrows |= 0 + ncols |= 0 + x_ptr |= 0 + y_ptr |= 0 + if(bits.isPow2(ncols)) { + fftRadix2(dir, nrows, ncols, buffer, x_ptr, y_ptr) + } else { + fftBluestein(dir, nrows, ncols, buffer, x_ptr, y_ptr, scratch_ptr) + } +} +module.exports = fft + +function scratchMemory(n) { + if(bits.isPow2(n)) { + return 0 + } + return 2 * n + 4 * bits.nextPow2(2*n + 1) +} +module.exports.scratchMemory = scratchMemory + + +//Radix 2 FFT Adapted from Paul Bourke's C Implementation +function fftRadix2(dir, nrows, ncols, buffer, x_ptr, y_ptr) { + dir |= 0 + nrows |= 0 + ncols |= 0 + x_ptr |= 0 + y_ptr |= 0 + var nn,m,i,i1,j,k,i2,l,l1,l2 + var c1,c2,t,t1,t2,u1,u2,z,row,a,b,c,d,k1,k2,k3 + + // Calculate the number of points + nn = ncols + m = bits.log2(nn) + + for(row=0; row> 1; + j = 0; + for(i=0;i>= 1 + } + j += k + } + + // Compute the FFT + c1 = -1.0 + c2 = 0.0 + l2 = 1 + for(l=0;l, 2013. // // https://github.com/deanm/omggif @@ -48934,7 +55970,7 @@ function GifReaderLZWOutputIndexStream(code_stream, p, output, output_length) { // CommonJS. try { exports.GifWriter = GifWriter; exports.GifReader = GifReader } catch(e) {} -},{}],79:[function(require,module,exports){ +},{}],94:[function(require,module,exports){ (function (process){ /** * Pace @@ -49208,5731 +56244,7 @@ function formatNumber(number, decimals, dec_point, thousands_sep) { } }).call(this,require('_process')) -},{"_process":114,"charm":13}],80:[function(require,module,exports){ -'use strict'; - - -var TYPED_OK = (typeof Uint8Array !== 'undefined') && - (typeof Uint16Array !== 'undefined') && - (typeof Int32Array !== 'undefined'); - -function _has(obj, key) { - return Object.prototype.hasOwnProperty.call(obj, key); -} - -exports.assign = function (obj /*from1, from2, from3, ...*/) { - var sources = Array.prototype.slice.call(arguments, 1); - while (sources.length) { - var source = sources.shift(); - if (!source) { continue; } - - if (typeof source !== 'object') { - throw new TypeError(source + 'must be non-object'); - } - - for (var p in source) { - if (_has(source, p)) { - obj[p] = source[p]; - } - } - } - - return obj; -}; - - -// reduce buffer size, avoiding mem copy -exports.shrinkBuf = function (buf, size) { - if (buf.length === size) { return buf; } - if (buf.subarray) { return buf.subarray(0, size); } - buf.length = size; - return buf; -}; - - -var fnTyped = { - arraySet: function (dest, src, src_offs, len, dest_offs) { - if (src.subarray && dest.subarray) { - dest.set(src.subarray(src_offs, src_offs + len), dest_offs); - return; - } - // Fallback to ordinary array - for (var i = 0; i < len; i++) { - dest[dest_offs + i] = src[src_offs + i]; - } - }, - // Join array of chunks to single array. - flattenChunks: function (chunks) { - var i, l, len, pos, chunk, result; - - // calculate data length - len = 0; - for (i = 0, l = chunks.length; i < l; i++) { - len += chunks[i].length; - } - - // join chunks - result = new Uint8Array(len); - pos = 0; - for (i = 0, l = chunks.length; i < l; i++) { - chunk = chunks[i]; - result.set(chunk, pos); - pos += chunk.length; - } - - return result; - } -}; - -var fnUntyped = { - arraySet: function (dest, src, src_offs, len, dest_offs) { - for (var i = 0; i < len; i++) { - dest[dest_offs + i] = src[src_offs + i]; - } - }, - // Join array of chunks to single array. - flattenChunks: function (chunks) { - return [].concat.apply([], chunks); - } -}; - - -// Enable/Disable typed arrays use, for testing -// -exports.setTyped = function (on) { - if (on) { - exports.Buf8 = Uint8Array; - exports.Buf16 = Uint16Array; - exports.Buf32 = Int32Array; - exports.assign(exports, fnTyped); - } else { - exports.Buf8 = Array; - exports.Buf16 = Array; - exports.Buf32 = Array; - exports.assign(exports, fnUntyped); - } -}; - -exports.setTyped(TYPED_OK); - -},{}],81:[function(require,module,exports){ -'use strict'; - -// Note: adler32 takes 12% for level 0 and 2% for level 6. -// It isn't worth it to make additional optimizations as in original. -// Small size is preferable. - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -function adler32(adler, buf, len, pos) { - var s1 = (adler & 0xffff) |0, - s2 = ((adler >>> 16) & 0xffff) |0, - n = 0; - - while (len !== 0) { - // Set limit ~ twice less than 5552, to keep - // s2 in 31-bits, because we force signed ints. - // in other case %= will fail. - n = len > 2000 ? 2000 : len; - len -= n; - - do { - s1 = (s1 + buf[pos++]) |0; - s2 = (s2 + s1) |0; - } while (--n); - - s1 %= 65521; - s2 %= 65521; - } - - return (s1 | (s2 << 16)) |0; -} - - -module.exports = adler32; - -},{}],82:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -module.exports = { - - /* Allowed flush values; see deflate() and inflate() below for details */ - Z_NO_FLUSH: 0, - Z_PARTIAL_FLUSH: 1, - Z_SYNC_FLUSH: 2, - Z_FULL_FLUSH: 3, - Z_FINISH: 4, - Z_BLOCK: 5, - Z_TREES: 6, - - /* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ - Z_OK: 0, - Z_STREAM_END: 1, - Z_NEED_DICT: 2, - Z_ERRNO: -1, - Z_STREAM_ERROR: -2, - Z_DATA_ERROR: -3, - //Z_MEM_ERROR: -4, - Z_BUF_ERROR: -5, - //Z_VERSION_ERROR: -6, - - /* compression levels */ - Z_NO_COMPRESSION: 0, - Z_BEST_SPEED: 1, - Z_BEST_COMPRESSION: 9, - Z_DEFAULT_COMPRESSION: -1, - - - Z_FILTERED: 1, - Z_HUFFMAN_ONLY: 2, - Z_RLE: 3, - Z_FIXED: 4, - Z_DEFAULT_STRATEGY: 0, - - /* Possible values of the data_type field (though see inflate()) */ - Z_BINARY: 0, - Z_TEXT: 1, - //Z_ASCII: 1, // = Z_TEXT (deprecated) - Z_UNKNOWN: 2, - - /* The deflate compression method */ - Z_DEFLATED: 8 - //Z_NULL: null // Use -1 or null inline, depending on var type -}; - -},{}],83:[function(require,module,exports){ -'use strict'; - -// Note: we can't get significant speed boost here. -// So write code to minimize size - no pregenerated tables -// and array tools dependencies. - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -// Use ordinary array, since untyped makes no boost here -function makeTable() { - var c, table = []; - - for (var n = 0; n < 256; n++) { - c = n; - for (var k = 0; k < 8; k++) { - c = ((c & 1) ? (0xEDB88320 ^ (c >>> 1)) : (c >>> 1)); - } - table[n] = c; - } - - return table; -} - -// Create table on load. Just 255 signed longs. Not a problem. -var crcTable = makeTable(); - - -function crc32(crc, buf, len, pos) { - var t = crcTable, - end = pos + len; - - crc ^= -1; - - for (var i = pos; i < end; i++) { - crc = (crc >>> 8) ^ t[(crc ^ buf[i]) & 0xFF]; - } - - return (crc ^ (-1)); // >>> 0; -} - - -module.exports = crc32; - -},{}],84:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -var utils = require('../utils/common'); -var trees = require('./trees'); -var adler32 = require('./adler32'); -var crc32 = require('./crc32'); -var msg = require('./messages'); - -/* Public constants ==========================================================*/ -/* ===========================================================================*/ - - -/* Allowed flush values; see deflate() and inflate() below for details */ -var Z_NO_FLUSH = 0; -var Z_PARTIAL_FLUSH = 1; -//var Z_SYNC_FLUSH = 2; -var Z_FULL_FLUSH = 3; -var Z_FINISH = 4; -var Z_BLOCK = 5; -//var Z_TREES = 6; - - -/* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ -var Z_OK = 0; -var Z_STREAM_END = 1; -//var Z_NEED_DICT = 2; -//var Z_ERRNO = -1; -var Z_STREAM_ERROR = -2; -var Z_DATA_ERROR = -3; -//var Z_MEM_ERROR = -4; -var Z_BUF_ERROR = -5; -//var Z_VERSION_ERROR = -6; - - -/* compression levels */ -//var Z_NO_COMPRESSION = 0; -//var Z_BEST_SPEED = 1; -//var Z_BEST_COMPRESSION = 9; -var Z_DEFAULT_COMPRESSION = -1; - - -var Z_FILTERED = 1; -var Z_HUFFMAN_ONLY = 2; -var Z_RLE = 3; -var Z_FIXED = 4; -var Z_DEFAULT_STRATEGY = 0; - -/* Possible values of the data_type field (though see inflate()) */ -//var Z_BINARY = 0; -//var Z_TEXT = 1; -//var Z_ASCII = 1; // = Z_TEXT -var Z_UNKNOWN = 2; - - -/* The deflate compression method */ -var Z_DEFLATED = 8; - -/*============================================================================*/ - - -var MAX_MEM_LEVEL = 9; -/* Maximum value for memLevel in deflateInit2 */ -var MAX_WBITS = 15; -/* 32K LZ77 window */ -var DEF_MEM_LEVEL = 8; - - -var LENGTH_CODES = 29; -/* number of length codes, not counting the special END_BLOCK code */ -var LITERALS = 256; -/* number of literal bytes 0..255 */ -var L_CODES = LITERALS + 1 + LENGTH_CODES; -/* number of Literal or Length codes, including the END_BLOCK code */ -var D_CODES = 30; -/* number of distance codes */ -var BL_CODES = 19; -/* number of codes used to transfer the bit lengths */ -var HEAP_SIZE = 2 * L_CODES + 1; -/* maximum heap size */ -var MAX_BITS = 15; -/* All codes must not exceed MAX_BITS bits */ - -var MIN_MATCH = 3; -var MAX_MATCH = 258; -var MIN_LOOKAHEAD = (MAX_MATCH + MIN_MATCH + 1); - -var PRESET_DICT = 0x20; - -var INIT_STATE = 42; -var EXTRA_STATE = 69; -var NAME_STATE = 73; -var COMMENT_STATE = 91; -var HCRC_STATE = 103; -var BUSY_STATE = 113; -var FINISH_STATE = 666; - -var BS_NEED_MORE = 1; /* block not completed, need more input or more output */ -var BS_BLOCK_DONE = 2; /* block flush performed */ -var BS_FINISH_STARTED = 3; /* finish started, need only more output at next deflate */ -var BS_FINISH_DONE = 4; /* finish done, accept no more input or output */ - -var OS_CODE = 0x03; // Unix :) . Don't detect, use this default. - -function err(strm, errorCode) { - strm.msg = msg[errorCode]; - return errorCode; -} - -function rank(f) { - return ((f) << 1) - ((f) > 4 ? 9 : 0); -} - -function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } } - - -/* ========================================================================= - * Flush as much pending output as possible. All deflate() output goes - * through this function so some applications may wish to modify it - * to avoid allocating a large strm->output buffer and copying into it. - * (See also read_buf()). - */ -function flush_pending(strm) { - var s = strm.state; - - //_tr_flush_bits(s); - var len = s.pending; - if (len > strm.avail_out) { - len = strm.avail_out; - } - if (len === 0) { return; } - - utils.arraySet(strm.output, s.pending_buf, s.pending_out, len, strm.next_out); - strm.next_out += len; - s.pending_out += len; - strm.total_out += len; - strm.avail_out -= len; - s.pending -= len; - if (s.pending === 0) { - s.pending_out = 0; - } -} - - -function flush_block_only(s, last) { - trees._tr_flush_block(s, (s.block_start >= 0 ? s.block_start : -1), s.strstart - s.block_start, last); - s.block_start = s.strstart; - flush_pending(s.strm); -} - - -function put_byte(s, b) { - s.pending_buf[s.pending++] = b; -} - - -/* ========================================================================= - * Put a short in the pending buffer. The 16-bit value is put in MSB order. - * IN assertion: the stream state is correct and there is enough room in - * pending_buf. - */ -function putShortMSB(s, b) { -// put_byte(s, (Byte)(b >> 8)); -// put_byte(s, (Byte)(b & 0xff)); - s.pending_buf[s.pending++] = (b >>> 8) & 0xff; - s.pending_buf[s.pending++] = b & 0xff; -} - - -/* =========================================================================== - * Read a new buffer from the current input stream, update the adler32 - * and total number of bytes read. All deflate() input goes through - * this function so some applications may wish to modify it to avoid - * allocating a large strm->input buffer and copying from it. - * (See also flush_pending()). - */ -function read_buf(strm, buf, start, size) { - var len = strm.avail_in; - - if (len > size) { len = size; } - if (len === 0) { return 0; } - - strm.avail_in -= len; - - // zmemcpy(buf, strm->next_in, len); - utils.arraySet(buf, strm.input, strm.next_in, len, start); - if (strm.state.wrap === 1) { - strm.adler = adler32(strm.adler, buf, len, start); - } - - else if (strm.state.wrap === 2) { - strm.adler = crc32(strm.adler, buf, len, start); - } - - strm.next_in += len; - strm.total_in += len; - - return len; -} - - -/* =========================================================================== - * Set match_start to the longest match starting at the given string and - * return its length. Matches shorter or equal to prev_length are discarded, - * in which case the result is equal to prev_length and match_start is - * garbage. - * IN assertions: cur_match is the head of the hash chain for the current - * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1 - * OUT assertion: the match length is not greater than s->lookahead. - */ -function longest_match(s, cur_match) { - var chain_length = s.max_chain_length; /* max hash chain length */ - var scan = s.strstart; /* current string */ - var match; /* matched string */ - var len; /* length of current match */ - var best_len = s.prev_length; /* best match length so far */ - var nice_match = s.nice_match; /* stop if match long enough */ - var limit = (s.strstart > (s.w_size - MIN_LOOKAHEAD)) ? - s.strstart - (s.w_size - MIN_LOOKAHEAD) : 0/*NIL*/; - - var _win = s.window; // shortcut - - var wmask = s.w_mask; - var prev = s.prev; - - /* Stop when cur_match becomes <= limit. To simplify the code, - * we prevent matches with the string of window index 0. - */ - - var strend = s.strstart + MAX_MATCH; - var scan_end1 = _win[scan + best_len - 1]; - var scan_end = _win[scan + best_len]; - - /* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16. - * It is easy to get rid of this optimization if necessary. - */ - // Assert(s->hash_bits >= 8 && MAX_MATCH == 258, "Code too clever"); - - /* Do not waste too much time if we already have a good match: */ - if (s.prev_length >= s.good_match) { - chain_length >>= 2; - } - /* Do not look for matches beyond the end of the input. This is necessary - * to make deflate deterministic. - */ - if (nice_match > s.lookahead) { nice_match = s.lookahead; } - - // Assert((ulg)s->strstart <= s->window_size-MIN_LOOKAHEAD, "need lookahead"); - - do { - // Assert(cur_match < s->strstart, "no future"); - match = cur_match; - - /* Skip to next match if the match length cannot increase - * or if the match length is less than 2. Note that the checks below - * for insufficient lookahead only occur occasionally for performance - * reasons. Therefore uninitialized memory will be accessed, and - * conditional jumps will be made that depend on those values. - * However the length of the match is limited to the lookahead, so - * the output of deflate is not affected by the uninitialized values. - */ - - if (_win[match + best_len] !== scan_end || - _win[match + best_len - 1] !== scan_end1 || - _win[match] !== _win[scan] || - _win[++match] !== _win[scan + 1]) { - continue; - } - - /* The check at best_len-1 can be removed because it will be made - * again later. (This heuristic is not always a win.) - * It is not necessary to compare scan[2] and match[2] since they - * are always equal when the other bytes match, given that - * the hash keys are equal and that HASH_BITS >= 8. - */ - scan += 2; - match++; - // Assert(*scan == *match, "match[2]?"); - - /* We check for insufficient lookahead only every 8th comparison; - * the 256th check will be made at strstart+258. - */ - do { - /*jshint noempty:false*/ - } while (_win[++scan] === _win[++match] && _win[++scan] === _win[++match] && - _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && - _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && - _win[++scan] === _win[++match] && _win[++scan] === _win[++match] && - scan < strend); - - // Assert(scan <= s->window+(unsigned)(s->window_size-1), "wild scan"); - - len = MAX_MATCH - (strend - scan); - scan = strend - MAX_MATCH; - - if (len > best_len) { - s.match_start = cur_match; - best_len = len; - if (len >= nice_match) { - break; - } - scan_end1 = _win[scan + best_len - 1]; - scan_end = _win[scan + best_len]; - } - } while ((cur_match = prev[cur_match & wmask]) > limit && --chain_length !== 0); - - if (best_len <= s.lookahead) { - return best_len; - } - return s.lookahead; -} - - -/* =========================================================================== - * Fill the window when the lookahead becomes insufficient. - * Updates strstart and lookahead. - * - * IN assertion: lookahead < MIN_LOOKAHEAD - * OUT assertions: strstart <= window_size-MIN_LOOKAHEAD - * At least one byte has been read, or avail_in == 0; reads are - * performed for at least two bytes (required for the zip translate_eol - * option -- not supported here). - */ -function fill_window(s) { - var _w_size = s.w_size; - var p, n, m, more, str; - - //Assert(s->lookahead < MIN_LOOKAHEAD, "already enough lookahead"); - - do { - more = s.window_size - s.lookahead - s.strstart; - - // JS ints have 32 bit, block below not needed - /* Deal with !@#$% 64K limit: */ - //if (sizeof(int) <= 2) { - // if (more == 0 && s->strstart == 0 && s->lookahead == 0) { - // more = wsize; - // - // } else if (more == (unsigned)(-1)) { - // /* Very unlikely, but possible on 16 bit machine if - // * strstart == 0 && lookahead == 1 (input done a byte at time) - // */ - // more--; - // } - //} - - - /* If the window is almost full and there is insufficient lookahead, - * move the upper half to the lower one to make room in the upper half. - */ - if (s.strstart >= _w_size + (_w_size - MIN_LOOKAHEAD)) { - - utils.arraySet(s.window, s.window, _w_size, _w_size, 0); - s.match_start -= _w_size; - s.strstart -= _w_size; - /* we now have strstart >= MAX_DIST */ - s.block_start -= _w_size; - - /* Slide the hash table (could be avoided with 32 bit values - at the expense of memory usage). We slide even when level == 0 - to keep the hash table consistent if we switch back to level > 0 - later. (Using level 0 permanently is not an optimal usage of - zlib, so we don't care about this pathological case.) - */ - - n = s.hash_size; - p = n; - do { - m = s.head[--p]; - s.head[p] = (m >= _w_size ? m - _w_size : 0); - } while (--n); - - n = _w_size; - p = n; - do { - m = s.prev[--p]; - s.prev[p] = (m >= _w_size ? m - _w_size : 0); - /* If n is not on any hash chain, prev[n] is garbage but - * its value will never be used. - */ - } while (--n); - - more += _w_size; - } - if (s.strm.avail_in === 0) { - break; - } - - /* If there was no sliding: - * strstart <= WSIZE+MAX_DIST-1 && lookahead <= MIN_LOOKAHEAD - 1 && - * more == window_size - lookahead - strstart - * => more >= window_size - (MIN_LOOKAHEAD-1 + WSIZE + MAX_DIST-1) - * => more >= window_size - 2*WSIZE + 2 - * In the BIG_MEM or MMAP case (not yet supported), - * window_size == input_size + MIN_LOOKAHEAD && - * strstart + s->lookahead <= input_size => more >= MIN_LOOKAHEAD. - * Otherwise, window_size == 2*WSIZE so more >= 2. - * If there was sliding, more >= WSIZE. So in all cases, more >= 2. - */ - //Assert(more >= 2, "more < 2"); - n = read_buf(s.strm, s.window, s.strstart + s.lookahead, more); - s.lookahead += n; - - /* Initialize the hash value now that we have some input: */ - if (s.lookahead + s.insert >= MIN_MATCH) { - str = s.strstart - s.insert; - s.ins_h = s.window[str]; - - /* UPDATE_HASH(s, s->ins_h, s->window[str + 1]); */ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + 1]) & s.hash_mask; -//#if MIN_MATCH != 3 -// Call update_hash() MIN_MATCH-3 more times -//#endif - while (s.insert) { - /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask; - - s.prev[str & s.w_mask] = s.head[s.ins_h]; - s.head[s.ins_h] = str; - str++; - s.insert--; - if (s.lookahead + s.insert < MIN_MATCH) { - break; - } - } - } - /* If the whole input has less than MIN_MATCH bytes, ins_h is garbage, - * but this is not important since only literal bytes will be emitted. - */ - - } while (s.lookahead < MIN_LOOKAHEAD && s.strm.avail_in !== 0); - - /* If the WIN_INIT bytes after the end of the current data have never been - * written, then zero those bytes in order to avoid memory check reports of - * the use of uninitialized (or uninitialised as Julian writes) bytes by - * the longest match routines. Update the high water mark for the next - * time through here. WIN_INIT is set to MAX_MATCH since the longest match - * routines allow scanning to strstart + MAX_MATCH, ignoring lookahead. - */ -// if (s.high_water < s.window_size) { -// var curr = s.strstart + s.lookahead; -// var init = 0; -// -// if (s.high_water < curr) { -// /* Previous high water mark below current data -- zero WIN_INIT -// * bytes or up to end of window, whichever is less. -// */ -// init = s.window_size - curr; -// if (init > WIN_INIT) -// init = WIN_INIT; -// zmemzero(s->window + curr, (unsigned)init); -// s->high_water = curr + init; -// } -// else if (s->high_water < (ulg)curr + WIN_INIT) { -// /* High water mark at or above current data, but below current data -// * plus WIN_INIT -- zero out to current data plus WIN_INIT, or up -// * to end of window, whichever is less. -// */ -// init = (ulg)curr + WIN_INIT - s->high_water; -// if (init > s->window_size - s->high_water) -// init = s->window_size - s->high_water; -// zmemzero(s->window + s->high_water, (unsigned)init); -// s->high_water += init; -// } -// } -// -// Assert((ulg)s->strstart <= s->window_size - MIN_LOOKAHEAD, -// "not enough room for search"); -} - -/* =========================================================================== - * Copy without compression as much as possible from the input stream, return - * the current block state. - * This function does not insert new strings in the dictionary since - * uncompressible data is probably not useful. This function is used - * only for the level=0 compression option. - * NOTE: this function should be optimized to avoid extra copying from - * window to pending_buf. - */ -function deflate_stored(s, flush) { - /* Stored blocks are limited to 0xffff bytes, pending_buf is limited - * to pending_buf_size, and each stored block has a 5 byte header: - */ - var max_block_size = 0xffff; - - if (max_block_size > s.pending_buf_size - 5) { - max_block_size = s.pending_buf_size - 5; - } - - /* Copy as much as possible from input to output: */ - for (;;) { - /* Fill the window as much as possible: */ - if (s.lookahead <= 1) { - - //Assert(s->strstart < s->w_size+MAX_DIST(s) || - // s->block_start >= (long)s->w_size, "slide too late"); -// if (!(s.strstart < s.w_size + (s.w_size - MIN_LOOKAHEAD) || -// s.block_start >= s.w_size)) { -// throw new Error("slide too late"); -// } - - fill_window(s); - if (s.lookahead === 0 && flush === Z_NO_FLUSH) { - return BS_NEED_MORE; - } - - if (s.lookahead === 0) { - break; - } - /* flush the current block */ - } - //Assert(s->block_start >= 0L, "block gone"); -// if (s.block_start < 0) throw new Error("block gone"); - - s.strstart += s.lookahead; - s.lookahead = 0; - - /* Emit a stored block if pending_buf will be full: */ - var max_start = s.block_start + max_block_size; - - if (s.strstart === 0 || s.strstart >= max_start) { - /* strstart == 0 is possible when wraparound on 16-bit machine */ - s.lookahead = s.strstart - max_start; - s.strstart = max_start; - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - - - } - /* Flush if we may have to slide, otherwise block_start may become - * negative and the data will be gone: - */ - if (s.strstart - s.block_start >= (s.w_size - MIN_LOOKAHEAD)) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - } - - s.insert = 0; - - if (flush === Z_FINISH) { - /*** FLUSH_BLOCK(s, 1); ***/ - flush_block_only(s, true); - if (s.strm.avail_out === 0) { - return BS_FINISH_STARTED; - } - /***/ - return BS_FINISH_DONE; - } - - if (s.strstart > s.block_start) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - - return BS_NEED_MORE; -} - -/* =========================================================================== - * Compress as much as possible from the input stream, return the current - * block state. - * This function does not perform lazy evaluation of matches and inserts - * new strings in the dictionary only for unmatched strings or for short - * matches. It is used only for the fast compression options. - */ -function deflate_fast(s, flush) { - var hash_head; /* head of the hash chain */ - var bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s.lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) { - return BS_NEED_MORE; - } - if (s.lookahead === 0) { - break; /* flush the current block */ - } - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = 0/*NIL*/; - if (s.lookahead >= MIN_MATCH) { - /*** INSERT_STRING(s, s.strstart, hash_head); ***/ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; - hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; - s.head[s.ins_h] = s.strstart; - /***/ - } - - /* Find the longest match, discarding those <= prev_length. - * At this point we have always match_length < MIN_MATCH - */ - if (hash_head !== 0/*NIL*/ && ((s.strstart - hash_head) <= (s.w_size - MIN_LOOKAHEAD))) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s.match_length = longest_match(s, hash_head); - /* longest_match() sets match_start */ - } - if (s.match_length >= MIN_MATCH) { - // check_match(s, s.strstart, s.match_start, s.match_length); // for debug only - - /*** _tr_tally_dist(s, s.strstart - s.match_start, - s.match_length - MIN_MATCH, bflush); ***/ - bflush = trees._tr_tally(s, s.strstart - s.match_start, s.match_length - MIN_MATCH); - - s.lookahead -= s.match_length; - - /* Insert new strings in the hash table only if the match length - * is not too large. This saves time but degrades compression. - */ - if (s.match_length <= s.max_lazy_match/*max_insert_length*/ && s.lookahead >= MIN_MATCH) { - s.match_length--; /* string at strstart already in table */ - do { - s.strstart++; - /*** INSERT_STRING(s, s.strstart, hash_head); ***/ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; - hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; - s.head[s.ins_h] = s.strstart; - /***/ - /* strstart never exceeds WSIZE-MAX_MATCH, so there are - * always MIN_MATCH bytes ahead. - */ - } while (--s.match_length !== 0); - s.strstart++; - } else - { - s.strstart += s.match_length; - s.match_length = 0; - s.ins_h = s.window[s.strstart]; - /* UPDATE_HASH(s, s.ins_h, s.window[s.strstart+1]); */ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + 1]) & s.hash_mask; - -//#if MIN_MATCH != 3 -// Call UPDATE_HASH() MIN_MATCH-3 more times -//#endif - /* If lookahead < MIN_MATCH, ins_h is garbage, but it does not - * matter since it will be recomputed at next deflate call. - */ - } - } else { - /* No match, output a literal byte */ - //Tracevv((stderr,"%c", s.window[s.strstart])); - /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ - bflush = trees._tr_tally(s, 0, s.window[s.strstart]); - - s.lookahead--; - s.strstart++; - } - if (bflush) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - } - s.insert = ((s.strstart < (MIN_MATCH - 1)) ? s.strstart : MIN_MATCH - 1); - if (flush === Z_FINISH) { - /*** FLUSH_BLOCK(s, 1); ***/ - flush_block_only(s, true); - if (s.strm.avail_out === 0) { - return BS_FINISH_STARTED; - } - /***/ - return BS_FINISH_DONE; - } - if (s.last_lit) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - return BS_BLOCK_DONE; -} - -/* =========================================================================== - * Same as above, but achieves better compression. We use a lazy - * evaluation for matches: a match is finally adopted only if there is - * no better match at the next window position. - */ -function deflate_slow(s, flush) { - var hash_head; /* head of hash chain */ - var bflush; /* set if current block must be flushed */ - - var max_insert; - - /* Process the input block. */ - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the next match, plus MIN_MATCH bytes to insert the - * string following the next match. - */ - if (s.lookahead < MIN_LOOKAHEAD) { - fill_window(s); - if (s.lookahead < MIN_LOOKAHEAD && flush === Z_NO_FLUSH) { - return BS_NEED_MORE; - } - if (s.lookahead === 0) { break; } /* flush the current block */ - } - - /* Insert the string window[strstart .. strstart+2] in the - * dictionary, and set hash_head to the head of the hash chain: - */ - hash_head = 0/*NIL*/; - if (s.lookahead >= MIN_MATCH) { - /*** INSERT_STRING(s, s.strstart, hash_head); ***/ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; - hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; - s.head[s.ins_h] = s.strstart; - /***/ - } - - /* Find the longest match, discarding those <= prev_length. - */ - s.prev_length = s.match_length; - s.prev_match = s.match_start; - s.match_length = MIN_MATCH - 1; - - if (hash_head !== 0/*NIL*/ && s.prev_length < s.max_lazy_match && - s.strstart - hash_head <= (s.w_size - MIN_LOOKAHEAD)/*MAX_DIST(s)*/) { - /* To simplify the code, we prevent matches with the string - * of window index 0 (in particular we have to avoid a match - * of the string with itself at the start of the input file). - */ - s.match_length = longest_match(s, hash_head); - /* longest_match() sets match_start */ - - if (s.match_length <= 5 && - (s.strategy === Z_FILTERED || (s.match_length === MIN_MATCH && s.strstart - s.match_start > 4096/*TOO_FAR*/))) { - - /* If prev_match is also MIN_MATCH, match_start is garbage - * but we will ignore the current match anyway. - */ - s.match_length = MIN_MATCH - 1; - } - } - /* If there was a match at the previous step and the current - * match is not better, output the previous match: - */ - if (s.prev_length >= MIN_MATCH && s.match_length <= s.prev_length) { - max_insert = s.strstart + s.lookahead - MIN_MATCH; - /* Do not insert strings in hash table beyond this. */ - - //check_match(s, s.strstart-1, s.prev_match, s.prev_length); - - /***_tr_tally_dist(s, s.strstart - 1 - s.prev_match, - s.prev_length - MIN_MATCH, bflush);***/ - bflush = trees._tr_tally(s, s.strstart - 1 - s.prev_match, s.prev_length - MIN_MATCH); - /* Insert in hash table all strings up to the end of the match. - * strstart-1 and strstart are already inserted. If there is not - * enough lookahead, the last two strings are not inserted in - * the hash table. - */ - s.lookahead -= s.prev_length - 1; - s.prev_length -= 2; - do { - if (++s.strstart <= max_insert) { - /*** INSERT_STRING(s, s.strstart, hash_head); ***/ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[s.strstart + MIN_MATCH - 1]) & s.hash_mask; - hash_head = s.prev[s.strstart & s.w_mask] = s.head[s.ins_h]; - s.head[s.ins_h] = s.strstart; - /***/ - } - } while (--s.prev_length !== 0); - s.match_available = 0; - s.match_length = MIN_MATCH - 1; - s.strstart++; - - if (bflush) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - - } else if (s.match_available) { - /* If there was no match at the previous position, output a - * single literal. If there was a match but the current match - * is longer, truncate the previous match to a single literal. - */ - //Tracevv((stderr,"%c", s->window[s->strstart-1])); - /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/ - bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]); - - if (bflush) { - /*** FLUSH_BLOCK_ONLY(s, 0) ***/ - flush_block_only(s, false); - /***/ - } - s.strstart++; - s.lookahead--; - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - } else { - /* There is no previous match to compare with, wait for - * the next step to decide. - */ - s.match_available = 1; - s.strstart++; - s.lookahead--; - } - } - //Assert (flush != Z_NO_FLUSH, "no flush?"); - if (s.match_available) { - //Tracevv((stderr,"%c", s->window[s->strstart-1])); - /*** _tr_tally_lit(s, s.window[s.strstart-1], bflush); ***/ - bflush = trees._tr_tally(s, 0, s.window[s.strstart - 1]); - - s.match_available = 0; - } - s.insert = s.strstart < MIN_MATCH - 1 ? s.strstart : MIN_MATCH - 1; - if (flush === Z_FINISH) { - /*** FLUSH_BLOCK(s, 1); ***/ - flush_block_only(s, true); - if (s.strm.avail_out === 0) { - return BS_FINISH_STARTED; - } - /***/ - return BS_FINISH_DONE; - } - if (s.last_lit) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - - return BS_BLOCK_DONE; -} - - -/* =========================================================================== - * For Z_RLE, simply look for runs of bytes, generate matches only of distance - * one. Do not maintain a hash table. (It will be regenerated if this run of - * deflate switches away from Z_RLE.) - */ -function deflate_rle(s, flush) { - var bflush; /* set if current block must be flushed */ - var prev; /* byte at distance one to match */ - var scan, strend; /* scan goes up to strend for length of run */ - - var _win = s.window; - - for (;;) { - /* Make sure that we always have enough lookahead, except - * at the end of the input file. We need MAX_MATCH bytes - * for the longest run, plus one for the unrolled loop. - */ - if (s.lookahead <= MAX_MATCH) { - fill_window(s); - if (s.lookahead <= MAX_MATCH && flush === Z_NO_FLUSH) { - return BS_NEED_MORE; - } - if (s.lookahead === 0) { break; } /* flush the current block */ - } - - /* See how many times the previous byte repeats */ - s.match_length = 0; - if (s.lookahead >= MIN_MATCH && s.strstart > 0) { - scan = s.strstart - 1; - prev = _win[scan]; - if (prev === _win[++scan] && prev === _win[++scan] && prev === _win[++scan]) { - strend = s.strstart + MAX_MATCH; - do { - /*jshint noempty:false*/ - } while (prev === _win[++scan] && prev === _win[++scan] && - prev === _win[++scan] && prev === _win[++scan] && - prev === _win[++scan] && prev === _win[++scan] && - prev === _win[++scan] && prev === _win[++scan] && - scan < strend); - s.match_length = MAX_MATCH - (strend - scan); - if (s.match_length > s.lookahead) { - s.match_length = s.lookahead; - } - } - //Assert(scan <= s->window+(uInt)(s->window_size-1), "wild scan"); - } - - /* Emit match if have run of MIN_MATCH or longer, else emit literal */ - if (s.match_length >= MIN_MATCH) { - //check_match(s, s.strstart, s.strstart - 1, s.match_length); - - /*** _tr_tally_dist(s, 1, s.match_length - MIN_MATCH, bflush); ***/ - bflush = trees._tr_tally(s, 1, s.match_length - MIN_MATCH); - - s.lookahead -= s.match_length; - s.strstart += s.match_length; - s.match_length = 0; - } else { - /* No match, output a literal byte */ - //Tracevv((stderr,"%c", s->window[s->strstart])); - /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ - bflush = trees._tr_tally(s, 0, s.window[s.strstart]); - - s.lookahead--; - s.strstart++; - } - if (bflush) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - } - s.insert = 0; - if (flush === Z_FINISH) { - /*** FLUSH_BLOCK(s, 1); ***/ - flush_block_only(s, true); - if (s.strm.avail_out === 0) { - return BS_FINISH_STARTED; - } - /***/ - return BS_FINISH_DONE; - } - if (s.last_lit) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - return BS_BLOCK_DONE; -} - -/* =========================================================================== - * For Z_HUFFMAN_ONLY, do not look for matches. Do not maintain a hash table. - * (It will be regenerated if this run of deflate switches away from Huffman.) - */ -function deflate_huff(s, flush) { - var bflush; /* set if current block must be flushed */ - - for (;;) { - /* Make sure that we have a literal to write. */ - if (s.lookahead === 0) { - fill_window(s); - if (s.lookahead === 0) { - if (flush === Z_NO_FLUSH) { - return BS_NEED_MORE; - } - break; /* flush the current block */ - } - } - - /* Output a literal byte */ - s.match_length = 0; - //Tracevv((stderr,"%c", s->window[s->strstart])); - /*** _tr_tally_lit(s, s.window[s.strstart], bflush); ***/ - bflush = trees._tr_tally(s, 0, s.window[s.strstart]); - s.lookahead--; - s.strstart++; - if (bflush) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - } - s.insert = 0; - if (flush === Z_FINISH) { - /*** FLUSH_BLOCK(s, 1); ***/ - flush_block_only(s, true); - if (s.strm.avail_out === 0) { - return BS_FINISH_STARTED; - } - /***/ - return BS_FINISH_DONE; - } - if (s.last_lit) { - /*** FLUSH_BLOCK(s, 0); ***/ - flush_block_only(s, false); - if (s.strm.avail_out === 0) { - return BS_NEED_MORE; - } - /***/ - } - return BS_BLOCK_DONE; -} - -/* Values for max_lazy_match, good_match and max_chain_length, depending on - * the desired pack level (0..9). The values given below have been tuned to - * exclude worst case performance for pathological files. Better values may be - * found for specific files. - */ -function Config(good_length, max_lazy, nice_length, max_chain, func) { - this.good_length = good_length; - this.max_lazy = max_lazy; - this.nice_length = nice_length; - this.max_chain = max_chain; - this.func = func; -} - -var configuration_table; - -configuration_table = [ - /* good lazy nice chain */ - new Config(0, 0, 0, 0, deflate_stored), /* 0 store only */ - new Config(4, 4, 8, 4, deflate_fast), /* 1 max speed, no lazy matches */ - new Config(4, 5, 16, 8, deflate_fast), /* 2 */ - new Config(4, 6, 32, 32, deflate_fast), /* 3 */ - - new Config(4, 4, 16, 16, deflate_slow), /* 4 lazy matches */ - new Config(8, 16, 32, 32, deflate_slow), /* 5 */ - new Config(8, 16, 128, 128, deflate_slow), /* 6 */ - new Config(8, 32, 128, 256, deflate_slow), /* 7 */ - new Config(32, 128, 258, 1024, deflate_slow), /* 8 */ - new Config(32, 258, 258, 4096, deflate_slow) /* 9 max compression */ -]; - - -/* =========================================================================== - * Initialize the "longest match" routines for a new zlib stream - */ -function lm_init(s) { - s.window_size = 2 * s.w_size; - - /*** CLEAR_HASH(s); ***/ - zero(s.head); // Fill with NIL (= 0); - - /* Set the default configuration parameters: - */ - s.max_lazy_match = configuration_table[s.level].max_lazy; - s.good_match = configuration_table[s.level].good_length; - s.nice_match = configuration_table[s.level].nice_length; - s.max_chain_length = configuration_table[s.level].max_chain; - - s.strstart = 0; - s.block_start = 0; - s.lookahead = 0; - s.insert = 0; - s.match_length = s.prev_length = MIN_MATCH - 1; - s.match_available = 0; - s.ins_h = 0; -} - - -function DeflateState() { - this.strm = null; /* pointer back to this zlib stream */ - this.status = 0; /* as the name implies */ - this.pending_buf = null; /* output still pending */ - this.pending_buf_size = 0; /* size of pending_buf */ - this.pending_out = 0; /* next pending byte to output to the stream */ - this.pending = 0; /* nb of bytes in the pending buffer */ - this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */ - this.gzhead = null; /* gzip header information to write */ - this.gzindex = 0; /* where in extra, name, or comment */ - this.method = Z_DEFLATED; /* can only be DEFLATED */ - this.last_flush = -1; /* value of flush param for previous deflate call */ - - this.w_size = 0; /* LZ77 window size (32K by default) */ - this.w_bits = 0; /* log2(w_size) (8..16) */ - this.w_mask = 0; /* w_size - 1 */ - - this.window = null; - /* Sliding window. Input bytes are read into the second half of the window, - * and move to the first half later to keep a dictionary of at least wSize - * bytes. With this organization, matches are limited to a distance of - * wSize-MAX_MATCH bytes, but this ensures that IO is always - * performed with a length multiple of the block size. - */ - - this.window_size = 0; - /* Actual size of window: 2*wSize, except when the user input buffer - * is directly used as sliding window. - */ - - this.prev = null; - /* Link to older string with same hash index. To limit the size of this - * array to 64K, this link is maintained only for the last 32K strings. - * An index in this array is thus a window index modulo 32K. - */ - - this.head = null; /* Heads of the hash chains or NIL. */ - - this.ins_h = 0; /* hash index of string to be inserted */ - this.hash_size = 0; /* number of elements in hash table */ - this.hash_bits = 0; /* log2(hash_size) */ - this.hash_mask = 0; /* hash_size-1 */ - - this.hash_shift = 0; - /* Number of bits by which ins_h must be shifted at each input - * step. It must be such that after MIN_MATCH steps, the oldest - * byte no longer takes part in the hash key, that is: - * hash_shift * MIN_MATCH >= hash_bits - */ - - this.block_start = 0; - /* Window position at the beginning of the current output block. Gets - * negative when the window is moved backwards. - */ - - this.match_length = 0; /* length of best match */ - this.prev_match = 0; /* previous match */ - this.match_available = 0; /* set if previous match exists */ - this.strstart = 0; /* start of string to insert */ - this.match_start = 0; /* start of matching string */ - this.lookahead = 0; /* number of valid bytes ahead in window */ - - this.prev_length = 0; - /* Length of the best match at previous step. Matches not greater than this - * are discarded. This is used in the lazy match evaluation. - */ - - this.max_chain_length = 0; - /* To speed up deflation, hash chains are never searched beyond this - * length. A higher limit improves compression ratio but degrades the - * speed. - */ - - this.max_lazy_match = 0; - /* Attempt to find a better match only when the current match is strictly - * smaller than this value. This mechanism is used only for compression - * levels >= 4. - */ - // That's alias to max_lazy_match, don't use directly - //this.max_insert_length = 0; - /* Insert new strings in the hash table only if the match length is not - * greater than this length. This saves time but degrades compression. - * max_insert_length is used only for compression levels <= 3. - */ - - this.level = 0; /* compression level (1..9) */ - this.strategy = 0; /* favor or force Huffman coding*/ - - this.good_match = 0; - /* Use a faster search when the previous match is longer than this */ - - this.nice_match = 0; /* Stop searching when current match exceeds this */ - - /* used by trees.c: */ - - /* Didn't use ct_data typedef below to suppress compiler warning */ - - // struct ct_data_s dyn_ltree[HEAP_SIZE]; /* literal and length tree */ - // struct ct_data_s dyn_dtree[2*D_CODES+1]; /* distance tree */ - // struct ct_data_s bl_tree[2*BL_CODES+1]; /* Huffman tree for bit lengths */ - - // Use flat array of DOUBLE size, with interleaved fata, - // because JS does not support effective - this.dyn_ltree = new utils.Buf16(HEAP_SIZE * 2); - this.dyn_dtree = new utils.Buf16((2 * D_CODES + 1) * 2); - this.bl_tree = new utils.Buf16((2 * BL_CODES + 1) * 2); - zero(this.dyn_ltree); - zero(this.dyn_dtree); - zero(this.bl_tree); - - this.l_desc = null; /* desc. for literal tree */ - this.d_desc = null; /* desc. for distance tree */ - this.bl_desc = null; /* desc. for bit length tree */ - - //ush bl_count[MAX_BITS+1]; - this.bl_count = new utils.Buf16(MAX_BITS + 1); - /* number of codes at each bit length for an optimal tree */ - - //int heap[2*L_CODES+1]; /* heap used to build the Huffman trees */ - this.heap = new utils.Buf16(2 * L_CODES + 1); /* heap used to build the Huffman trees */ - zero(this.heap); - - this.heap_len = 0; /* number of elements in the heap */ - this.heap_max = 0; /* element of largest frequency */ - /* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used. - * The same heap array is used to build all trees. - */ - - this.depth = new utils.Buf16(2 * L_CODES + 1); //uch depth[2*L_CODES+1]; - zero(this.depth); - /* Depth of each subtree used as tie breaker for trees of equal frequency - */ - - this.l_buf = 0; /* buffer index for literals or lengths */ - - this.lit_bufsize = 0; - /* Size of match buffer for literals/lengths. There are 4 reasons for - * limiting lit_bufsize to 64K: - * - frequencies can be kept in 16 bit counters - * - if compression is not successful for the first block, all input - * data is still in the window so we can still emit a stored block even - * when input comes from standard input. (This can also be done for - * all blocks if lit_bufsize is not greater than 32K.) - * - if compression is not successful for a file smaller than 64K, we can - * even emit a stored file instead of a stored block (saving 5 bytes). - * This is applicable only for zip (not gzip or zlib). - * - creating new Huffman trees less frequently may not provide fast - * adaptation to changes in the input data statistics. (Take for - * example a binary file with poorly compressible code followed by - * a highly compressible string table.) Smaller buffer sizes give - * fast adaptation but have of course the overhead of transmitting - * trees more frequently. - * - I can't count above 4 - */ - - this.last_lit = 0; /* running index in l_buf */ - - this.d_buf = 0; - /* Buffer index for distances. To simplify the code, d_buf and l_buf have - * the same number of elements. To use different lengths, an extra flag - * array would be necessary. - */ - - this.opt_len = 0; /* bit length of current block with optimal trees */ - this.static_len = 0; /* bit length of current block with static trees */ - this.matches = 0; /* number of string matches in current block */ - this.insert = 0; /* bytes at end of window left to insert */ - - - this.bi_buf = 0; - /* Output buffer. bits are inserted starting at the bottom (least - * significant bits). - */ - this.bi_valid = 0; - /* Number of valid bits in bi_buf. All bits above the last valid bit - * are always zero. - */ - - // Used for window memory init. We safely ignore it for JS. That makes - // sense only for pointers and memory check tools. - //this.high_water = 0; - /* High water mark offset in window for initialized bytes -- bytes above - * this are set to zero in order to avoid memory check warnings when - * longest match routines access bytes past the input. This is then - * updated to the new high water mark. - */ -} - - -function deflateResetKeep(strm) { - var s; - - if (!strm || !strm.state) { - return err(strm, Z_STREAM_ERROR); - } - - strm.total_in = strm.total_out = 0; - strm.data_type = Z_UNKNOWN; - - s = strm.state; - s.pending = 0; - s.pending_out = 0; - - if (s.wrap < 0) { - s.wrap = -s.wrap; - /* was made negative by deflate(..., Z_FINISH); */ - } - s.status = (s.wrap ? INIT_STATE : BUSY_STATE); - strm.adler = (s.wrap === 2) ? - 0 // crc32(0, Z_NULL, 0) - : - 1; // adler32(0, Z_NULL, 0) - s.last_flush = Z_NO_FLUSH; - trees._tr_init(s); - return Z_OK; -} - - -function deflateReset(strm) { - var ret = deflateResetKeep(strm); - if (ret === Z_OK) { - lm_init(strm.state); - } - return ret; -} - - -function deflateSetHeader(strm, head) { - if (!strm || !strm.state) { return Z_STREAM_ERROR; } - if (strm.state.wrap !== 2) { return Z_STREAM_ERROR; } - strm.state.gzhead = head; - return Z_OK; -} - - -function deflateInit2(strm, level, method, windowBits, memLevel, strategy) { - if (!strm) { // === Z_NULL - return Z_STREAM_ERROR; - } - var wrap = 1; - - if (level === Z_DEFAULT_COMPRESSION) { - level = 6; - } - - if (windowBits < 0) { /* suppress zlib wrapper */ - wrap = 0; - windowBits = -windowBits; - } - - else if (windowBits > 15) { - wrap = 2; /* write gzip wrapper instead */ - windowBits -= 16; - } - - - if (memLevel < 1 || memLevel > MAX_MEM_LEVEL || method !== Z_DEFLATED || - windowBits < 8 || windowBits > 15 || level < 0 || level > 9 || - strategy < 0 || strategy > Z_FIXED) { - return err(strm, Z_STREAM_ERROR); - } - - - if (windowBits === 8) { - windowBits = 9; - } - /* until 256-byte window bug fixed */ - - var s = new DeflateState(); - - strm.state = s; - s.strm = strm; - - s.wrap = wrap; - s.gzhead = null; - s.w_bits = windowBits; - s.w_size = 1 << s.w_bits; - s.w_mask = s.w_size - 1; - - s.hash_bits = memLevel + 7; - s.hash_size = 1 << s.hash_bits; - s.hash_mask = s.hash_size - 1; - s.hash_shift = ~~((s.hash_bits + MIN_MATCH - 1) / MIN_MATCH); - - s.window = new utils.Buf8(s.w_size * 2); - s.head = new utils.Buf16(s.hash_size); - s.prev = new utils.Buf16(s.w_size); - - // Don't need mem init magic for JS. - //s.high_water = 0; /* nothing written to s->window yet */ - - s.lit_bufsize = 1 << (memLevel + 6); /* 16K elements by default */ - - s.pending_buf_size = s.lit_bufsize * 4; - - //overlay = (ushf *) ZALLOC(strm, s->lit_bufsize, sizeof(ush)+2); - //s->pending_buf = (uchf *) overlay; - s.pending_buf = new utils.Buf8(s.pending_buf_size); - - // It is offset from `s.pending_buf` (size is `s.lit_bufsize * 2`) - //s->d_buf = overlay + s->lit_bufsize/sizeof(ush); - s.d_buf = 1 * s.lit_bufsize; - - //s->l_buf = s->pending_buf + (1+sizeof(ush))*s->lit_bufsize; - s.l_buf = (1 + 2) * s.lit_bufsize; - - s.level = level; - s.strategy = strategy; - s.method = method; - - return deflateReset(strm); -} - -function deflateInit(strm, level) { - return deflateInit2(strm, level, Z_DEFLATED, MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY); -} - - -function deflate(strm, flush) { - var old_flush, s; - var beg, val; // for gzip header write only - - if (!strm || !strm.state || - flush > Z_BLOCK || flush < 0) { - return strm ? err(strm, Z_STREAM_ERROR) : Z_STREAM_ERROR; - } - - s = strm.state; - - if (!strm.output || - (!strm.input && strm.avail_in !== 0) || - (s.status === FINISH_STATE && flush !== Z_FINISH)) { - return err(strm, (strm.avail_out === 0) ? Z_BUF_ERROR : Z_STREAM_ERROR); - } - - s.strm = strm; /* just in case */ - old_flush = s.last_flush; - s.last_flush = flush; - - /* Write the header */ - if (s.status === INIT_STATE) { - - if (s.wrap === 2) { // GZIP header - strm.adler = 0; //crc32(0L, Z_NULL, 0); - put_byte(s, 31); - put_byte(s, 139); - put_byte(s, 8); - if (!s.gzhead) { // s->gzhead == Z_NULL - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, 0); - put_byte(s, s.level === 9 ? 2 : - (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ? - 4 : 0)); - put_byte(s, OS_CODE); - s.status = BUSY_STATE; - } - else { - put_byte(s, (s.gzhead.text ? 1 : 0) + - (s.gzhead.hcrc ? 2 : 0) + - (!s.gzhead.extra ? 0 : 4) + - (!s.gzhead.name ? 0 : 8) + - (!s.gzhead.comment ? 0 : 16) - ); - put_byte(s, s.gzhead.time & 0xff); - put_byte(s, (s.gzhead.time >> 8) & 0xff); - put_byte(s, (s.gzhead.time >> 16) & 0xff); - put_byte(s, (s.gzhead.time >> 24) & 0xff); - put_byte(s, s.level === 9 ? 2 : - (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2 ? - 4 : 0)); - put_byte(s, s.gzhead.os & 0xff); - if (s.gzhead.extra && s.gzhead.extra.length) { - put_byte(s, s.gzhead.extra.length & 0xff); - put_byte(s, (s.gzhead.extra.length >> 8) & 0xff); - } - if (s.gzhead.hcrc) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending, 0); - } - s.gzindex = 0; - s.status = EXTRA_STATE; - } - } - else // DEFLATE header - { - var header = (Z_DEFLATED + ((s.w_bits - 8) << 4)) << 8; - var level_flags = -1; - - if (s.strategy >= Z_HUFFMAN_ONLY || s.level < 2) { - level_flags = 0; - } else if (s.level < 6) { - level_flags = 1; - } else if (s.level === 6) { - level_flags = 2; - } else { - level_flags = 3; - } - header |= (level_flags << 6); - if (s.strstart !== 0) { header |= PRESET_DICT; } - header += 31 - (header % 31); - - s.status = BUSY_STATE; - putShortMSB(s, header); - - /* Save the adler32 of the preset dictionary: */ - if (s.strstart !== 0) { - putShortMSB(s, strm.adler >>> 16); - putShortMSB(s, strm.adler & 0xffff); - } - strm.adler = 1; // adler32(0L, Z_NULL, 0); - } - } - -//#ifdef GZIP - if (s.status === EXTRA_STATE) { - if (s.gzhead.extra/* != Z_NULL*/) { - beg = s.pending; /* start of bytes to update crc */ - - while (s.gzindex < (s.gzhead.extra.length & 0xffff)) { - if (s.pending === s.pending_buf_size) { - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - flush_pending(strm); - beg = s.pending; - if (s.pending === s.pending_buf_size) { - break; - } - } - put_byte(s, s.gzhead.extra[s.gzindex] & 0xff); - s.gzindex++; - } - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - if (s.gzindex === s.gzhead.extra.length) { - s.gzindex = 0; - s.status = NAME_STATE; - } - } - else { - s.status = NAME_STATE; - } - } - if (s.status === NAME_STATE) { - if (s.gzhead.name/* != Z_NULL*/) { - beg = s.pending; /* start of bytes to update crc */ - //int val; - - do { - if (s.pending === s.pending_buf_size) { - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - flush_pending(strm); - beg = s.pending; - if (s.pending === s.pending_buf_size) { - val = 1; - break; - } - } - // JS specific: little magic to add zero terminator to end of string - if (s.gzindex < s.gzhead.name.length) { - val = s.gzhead.name.charCodeAt(s.gzindex++) & 0xff; - } else { - val = 0; - } - put_byte(s, val); - } while (val !== 0); - - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - if (val === 0) { - s.gzindex = 0; - s.status = COMMENT_STATE; - } - } - else { - s.status = COMMENT_STATE; - } - } - if (s.status === COMMENT_STATE) { - if (s.gzhead.comment/* != Z_NULL*/) { - beg = s.pending; /* start of bytes to update crc */ - //int val; - - do { - if (s.pending === s.pending_buf_size) { - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - flush_pending(strm); - beg = s.pending; - if (s.pending === s.pending_buf_size) { - val = 1; - break; - } - } - // JS specific: little magic to add zero terminator to end of string - if (s.gzindex < s.gzhead.comment.length) { - val = s.gzhead.comment.charCodeAt(s.gzindex++) & 0xff; - } else { - val = 0; - } - put_byte(s, val); - } while (val !== 0); - - if (s.gzhead.hcrc && s.pending > beg) { - strm.adler = crc32(strm.adler, s.pending_buf, s.pending - beg, beg); - } - if (val === 0) { - s.status = HCRC_STATE; - } - } - else { - s.status = HCRC_STATE; - } - } - if (s.status === HCRC_STATE) { - if (s.gzhead.hcrc) { - if (s.pending + 2 > s.pending_buf_size) { - flush_pending(strm); - } - if (s.pending + 2 <= s.pending_buf_size) { - put_byte(s, strm.adler & 0xff); - put_byte(s, (strm.adler >> 8) & 0xff); - strm.adler = 0; //crc32(0L, Z_NULL, 0); - s.status = BUSY_STATE; - } - } - else { - s.status = BUSY_STATE; - } - } -//#endif - - /* Flush as much pending output as possible */ - if (s.pending !== 0) { - flush_pending(strm); - if (strm.avail_out === 0) { - /* Since avail_out is 0, deflate will be called again with - * more output space, but possibly with both pending and - * avail_in equal to zero. There won't be anything to do, - * but this is not an error situation so make sure we - * return OK instead of BUF_ERROR at next call of deflate: - */ - s.last_flush = -1; - return Z_OK; - } - - /* Make sure there is something to do and avoid duplicate consecutive - * flushes. For repeated and useless calls with Z_FINISH, we keep - * returning Z_STREAM_END instead of Z_BUF_ERROR. - */ - } else if (strm.avail_in === 0 && rank(flush) <= rank(old_flush) && - flush !== Z_FINISH) { - return err(strm, Z_BUF_ERROR); - } - - /* User must not provide more input after the first FINISH: */ - if (s.status === FINISH_STATE && strm.avail_in !== 0) { - return err(strm, Z_BUF_ERROR); - } - - /* Start a new block or continue the current one. - */ - if (strm.avail_in !== 0 || s.lookahead !== 0 || - (flush !== Z_NO_FLUSH && s.status !== FINISH_STATE)) { - var bstate = (s.strategy === Z_HUFFMAN_ONLY) ? deflate_huff(s, flush) : - (s.strategy === Z_RLE ? deflate_rle(s, flush) : - configuration_table[s.level].func(s, flush)); - - if (bstate === BS_FINISH_STARTED || bstate === BS_FINISH_DONE) { - s.status = FINISH_STATE; - } - if (bstate === BS_NEED_MORE || bstate === BS_FINISH_STARTED) { - if (strm.avail_out === 0) { - s.last_flush = -1; - /* avoid BUF_ERROR next call, see above */ - } - return Z_OK; - /* If flush != Z_NO_FLUSH && avail_out == 0, the next call - * of deflate should use the same flush parameter to make sure - * that the flush is complete. So we don't have to output an - * empty block here, this will be done at next call. This also - * ensures that for a very small output buffer, we emit at most - * one empty block. - */ - } - if (bstate === BS_BLOCK_DONE) { - if (flush === Z_PARTIAL_FLUSH) { - trees._tr_align(s); - } - else if (flush !== Z_BLOCK) { /* FULL_FLUSH or SYNC_FLUSH */ - - trees._tr_stored_block(s, 0, 0, false); - /* For a full flush, this empty block will be recognized - * as a special marker by inflate_sync(). - */ - if (flush === Z_FULL_FLUSH) { - /*** CLEAR_HASH(s); ***/ /* forget history */ - zero(s.head); // Fill with NIL (= 0); - - if (s.lookahead === 0) { - s.strstart = 0; - s.block_start = 0; - s.insert = 0; - } - } - } - flush_pending(strm); - if (strm.avail_out === 0) { - s.last_flush = -1; /* avoid BUF_ERROR at next call, see above */ - return Z_OK; - } - } - } - //Assert(strm->avail_out > 0, "bug2"); - //if (strm.avail_out <= 0) { throw new Error("bug2");} - - if (flush !== Z_FINISH) { return Z_OK; } - if (s.wrap <= 0) { return Z_STREAM_END; } - - /* Write the trailer */ - if (s.wrap === 2) { - put_byte(s, strm.adler & 0xff); - put_byte(s, (strm.adler >> 8) & 0xff); - put_byte(s, (strm.adler >> 16) & 0xff); - put_byte(s, (strm.adler >> 24) & 0xff); - put_byte(s, strm.total_in & 0xff); - put_byte(s, (strm.total_in >> 8) & 0xff); - put_byte(s, (strm.total_in >> 16) & 0xff); - put_byte(s, (strm.total_in >> 24) & 0xff); - } - else - { - putShortMSB(s, strm.adler >>> 16); - putShortMSB(s, strm.adler & 0xffff); - } - - flush_pending(strm); - /* If avail_out is zero, the application will call deflate again - * to flush the rest. - */ - if (s.wrap > 0) { s.wrap = -s.wrap; } - /* write the trailer only once! */ - return s.pending !== 0 ? Z_OK : Z_STREAM_END; -} - -function deflateEnd(strm) { - var status; - - if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) { - return Z_STREAM_ERROR; - } - - status = strm.state.status; - if (status !== INIT_STATE && - status !== EXTRA_STATE && - status !== NAME_STATE && - status !== COMMENT_STATE && - status !== HCRC_STATE && - status !== BUSY_STATE && - status !== FINISH_STATE - ) { - return err(strm, Z_STREAM_ERROR); - } - - strm.state = null; - - return status === BUSY_STATE ? err(strm, Z_DATA_ERROR) : Z_OK; -} - - -/* ========================================================================= - * Initializes the compression dictionary from the given byte - * sequence without producing any compressed output. - */ -function deflateSetDictionary(strm, dictionary) { - var dictLength = dictionary.length; - - var s; - var str, n; - var wrap; - var avail; - var next; - var input; - var tmpDict; - - if (!strm/*== Z_NULL*/ || !strm.state/*== Z_NULL*/) { - return Z_STREAM_ERROR; - } - - s = strm.state; - wrap = s.wrap; - - if (wrap === 2 || (wrap === 1 && s.status !== INIT_STATE) || s.lookahead) { - return Z_STREAM_ERROR; - } - - /* when using zlib wrappers, compute Adler-32 for provided dictionary */ - if (wrap === 1) { - /* adler32(strm->adler, dictionary, dictLength); */ - strm.adler = adler32(strm.adler, dictionary, dictLength, 0); - } - - s.wrap = 0; /* avoid computing Adler-32 in read_buf */ - - /* if dictionary would fill window, just replace the history */ - if (dictLength >= s.w_size) { - if (wrap === 0) { /* already empty otherwise */ - /*** CLEAR_HASH(s); ***/ - zero(s.head); // Fill with NIL (= 0); - s.strstart = 0; - s.block_start = 0; - s.insert = 0; - } - /* use the tail */ - // dictionary = dictionary.slice(dictLength - s.w_size); - tmpDict = new utils.Buf8(s.w_size); - utils.arraySet(tmpDict, dictionary, dictLength - s.w_size, s.w_size, 0); - dictionary = tmpDict; - dictLength = s.w_size; - } - /* insert dictionary into window and hash */ - avail = strm.avail_in; - next = strm.next_in; - input = strm.input; - strm.avail_in = dictLength; - strm.next_in = 0; - strm.input = dictionary; - fill_window(s); - while (s.lookahead >= MIN_MATCH) { - str = s.strstart; - n = s.lookahead - (MIN_MATCH - 1); - do { - /* UPDATE_HASH(s, s->ins_h, s->window[str + MIN_MATCH-1]); */ - s.ins_h = ((s.ins_h << s.hash_shift) ^ s.window[str + MIN_MATCH - 1]) & s.hash_mask; - - s.prev[str & s.w_mask] = s.head[s.ins_h]; - - s.head[s.ins_h] = str; - str++; - } while (--n); - s.strstart = str; - s.lookahead = MIN_MATCH - 1; - fill_window(s); - } - s.strstart += s.lookahead; - s.block_start = s.strstart; - s.insert = s.lookahead; - s.lookahead = 0; - s.match_length = s.prev_length = MIN_MATCH - 1; - s.match_available = 0; - strm.next_in = next; - strm.input = input; - strm.avail_in = avail; - s.wrap = wrap; - return Z_OK; -} - - -exports.deflateInit = deflateInit; -exports.deflateInit2 = deflateInit2; -exports.deflateReset = deflateReset; -exports.deflateResetKeep = deflateResetKeep; -exports.deflateSetHeader = deflateSetHeader; -exports.deflate = deflate; -exports.deflateEnd = deflateEnd; -exports.deflateSetDictionary = deflateSetDictionary; -exports.deflateInfo = 'pako deflate (from Nodeca project)'; - -/* Not implemented -exports.deflateBound = deflateBound; -exports.deflateCopy = deflateCopy; -exports.deflateParams = deflateParams; -exports.deflatePending = deflatePending; -exports.deflatePrime = deflatePrime; -exports.deflateTune = deflateTune; -*/ - -},{"../utils/common":80,"./adler32":81,"./crc32":83,"./messages":88,"./trees":89}],85:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -// See state defs from inflate.js -var BAD = 30; /* got a data error -- remain here until reset */ -var TYPE = 12; /* i: waiting for type bits, including last-flag bit */ - -/* - Decode literal, length, and distance codes and write out the resulting - literal and match bytes until either not enough input or output is - available, an end-of-block is encountered, or a data error is encountered. - When large enough input and output buffers are supplied to inflate(), for - example, a 16K input buffer and a 64K output buffer, more than 95% of the - inflate execution time is spent in this routine. - - Entry assumptions: - - state.mode === LEN - strm.avail_in >= 6 - strm.avail_out >= 258 - start >= strm.avail_out - state.bits < 8 - - On return, state.mode is one of: - - LEN -- ran out of enough output space or enough available input - TYPE -- reached end of block code, inflate() to interpret next block - BAD -- error in block data - - Notes: - - - The maximum input bits used by a length/distance pair is 15 bits for the - length code, 5 bits for the length extra, 15 bits for the distance code, - and 13 bits for the distance extra. This totals 48 bits, or six bytes. - Therefore if strm.avail_in >= 6, then there is enough input to avoid - checking for available input while decoding. - - - The maximum bytes that a single length/distance pair can output is 258 - bytes, which is the maximum length that can be coded. inflate_fast() - requires strm.avail_out >= 258 for each loop to avoid checking for - output space. - */ -module.exports = function inflate_fast(strm, start) { - var state; - var _in; /* local strm.input */ - var last; /* have enough input while in < last */ - var _out; /* local strm.output */ - var beg; /* inflate()'s initial strm.output */ - var end; /* while out < end, enough space available */ -//#ifdef INFLATE_STRICT - var dmax; /* maximum distance from zlib header */ -//#endif - var wsize; /* window size or zero if not using window */ - var whave; /* valid bytes in the window */ - var wnext; /* window write index */ - // Use `s_window` instead `window`, avoid conflict with instrumentation tools - var s_window; /* allocated sliding window, if wsize != 0 */ - var hold; /* local strm.hold */ - var bits; /* local strm.bits */ - var lcode; /* local strm.lencode */ - var dcode; /* local strm.distcode */ - var lmask; /* mask for first level of length codes */ - var dmask; /* mask for first level of distance codes */ - var here; /* retrieved table entry */ - var op; /* code bits, operation, extra bits, or */ - /* window position, window bytes to copy */ - var len; /* match length, unused bytes */ - var dist; /* match distance */ - var from; /* where to copy match from */ - var from_source; - - - var input, output; // JS specific, because we have no pointers - - /* copy state to local variables */ - state = strm.state; - //here = state.here; - _in = strm.next_in; - input = strm.input; - last = _in + (strm.avail_in - 5); - _out = strm.next_out; - output = strm.output; - beg = _out - (start - strm.avail_out); - end = _out + (strm.avail_out - 257); -//#ifdef INFLATE_STRICT - dmax = state.dmax; -//#endif - wsize = state.wsize; - whave = state.whave; - wnext = state.wnext; - s_window = state.window; - hold = state.hold; - bits = state.bits; - lcode = state.lencode; - dcode = state.distcode; - lmask = (1 << state.lenbits) - 1; - dmask = (1 << state.distbits) - 1; - - - /* decode literals and length/distances until end-of-block or not enough - input data or output space */ - - top: - do { - if (bits < 15) { - hold += input[_in++] << bits; - bits += 8; - hold += input[_in++] << bits; - bits += 8; - } - - here = lcode[hold & lmask]; - - dolen: - for (;;) { // Goto emulation - op = here >>> 24/*here.bits*/; - hold >>>= op; - bits -= op; - op = (here >>> 16) & 0xff/*here.op*/; - if (op === 0) { /* literal */ - //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - // "inflate: literal '%c'\n" : - // "inflate: literal 0x%02x\n", here.val)); - output[_out++] = here & 0xffff/*here.val*/; - } - else if (op & 16) { /* length base */ - len = here & 0xffff/*here.val*/; - op &= 15; /* number of extra bits */ - if (op) { - if (bits < op) { - hold += input[_in++] << bits; - bits += 8; - } - len += hold & ((1 << op) - 1); - hold >>>= op; - bits -= op; - } - //Tracevv((stderr, "inflate: length %u\n", len)); - if (bits < 15) { - hold += input[_in++] << bits; - bits += 8; - hold += input[_in++] << bits; - bits += 8; - } - here = dcode[hold & dmask]; - - dodist: - for (;;) { // goto emulation - op = here >>> 24/*here.bits*/; - hold >>>= op; - bits -= op; - op = (here >>> 16) & 0xff/*here.op*/; - - if (op & 16) { /* distance base */ - dist = here & 0xffff/*here.val*/; - op &= 15; /* number of extra bits */ - if (bits < op) { - hold += input[_in++] << bits; - bits += 8; - if (bits < op) { - hold += input[_in++] << bits; - bits += 8; - } - } - dist += hold & ((1 << op) - 1); -//#ifdef INFLATE_STRICT - if (dist > dmax) { - strm.msg = 'invalid distance too far back'; - state.mode = BAD; - break top; - } -//#endif - hold >>>= op; - bits -= op; - //Tracevv((stderr, "inflate: distance %u\n", dist)); - op = _out - beg; /* max distance in output */ - if (dist > op) { /* see if copy from window */ - op = dist - op; /* distance back in window */ - if (op > whave) { - if (state.sane) { - strm.msg = 'invalid distance too far back'; - state.mode = BAD; - break top; - } - -// (!) This block is disabled in zlib defaults, -// don't enable it for binary compatibility -//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR -// if (len <= op - whave) { -// do { -// output[_out++] = 0; -// } while (--len); -// continue top; -// } -// len -= op - whave; -// do { -// output[_out++] = 0; -// } while (--op > whave); -// if (op === 0) { -// from = _out - dist; -// do { -// output[_out++] = output[from++]; -// } while (--len); -// continue top; -// } -//#endif - } - from = 0; // window index - from_source = s_window; - if (wnext === 0) { /* very common case */ - from += wsize - op; - if (op < len) { /* some from window */ - len -= op; - do { - output[_out++] = s_window[from++]; - } while (--op); - from = _out - dist; /* rest from output */ - from_source = output; - } - } - else if (wnext < op) { /* wrap around window */ - from += wsize + wnext - op; - op -= wnext; - if (op < len) { /* some from end of window */ - len -= op; - do { - output[_out++] = s_window[from++]; - } while (--op); - from = 0; - if (wnext < len) { /* some from start of window */ - op = wnext; - len -= op; - do { - output[_out++] = s_window[from++]; - } while (--op); - from = _out - dist; /* rest from output */ - from_source = output; - } - } - } - else { /* contiguous in window */ - from += wnext - op; - if (op < len) { /* some from window */ - len -= op; - do { - output[_out++] = s_window[from++]; - } while (--op); - from = _out - dist; /* rest from output */ - from_source = output; - } - } - while (len > 2) { - output[_out++] = from_source[from++]; - output[_out++] = from_source[from++]; - output[_out++] = from_source[from++]; - len -= 3; - } - if (len) { - output[_out++] = from_source[from++]; - if (len > 1) { - output[_out++] = from_source[from++]; - } - } - } - else { - from = _out - dist; /* copy direct from output */ - do { /* minimum length is three */ - output[_out++] = output[from++]; - output[_out++] = output[from++]; - output[_out++] = output[from++]; - len -= 3; - } while (len > 2); - if (len) { - output[_out++] = output[from++]; - if (len > 1) { - output[_out++] = output[from++]; - } - } - } - } - else if ((op & 64) === 0) { /* 2nd level distance code */ - here = dcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))]; - continue dodist; - } - else { - strm.msg = 'invalid distance code'; - state.mode = BAD; - break top; - } - - break; // need to emulate goto via "continue" - } - } - else if ((op & 64) === 0) { /* 2nd level length code */ - here = lcode[(here & 0xffff)/*here.val*/ + (hold & ((1 << op) - 1))]; - continue dolen; - } - else if (op & 32) { /* end-of-block */ - //Tracevv((stderr, "inflate: end of block\n")); - state.mode = TYPE; - break top; - } - else { - strm.msg = 'invalid literal/length code'; - state.mode = BAD; - break top; - } - - break; // need to emulate goto via "continue" - } - } while (_in < last && _out < end); - - /* return unused bytes (on entry, bits < 8, so in won't go too far back) */ - len = bits >> 3; - _in -= len; - bits -= len << 3; - hold &= (1 << bits) - 1; - - /* update state and return */ - strm.next_in = _in; - strm.next_out = _out; - strm.avail_in = (_in < last ? 5 + (last - _in) : 5 - (_in - last)); - strm.avail_out = (_out < end ? 257 + (end - _out) : 257 - (_out - end)); - state.hold = hold; - state.bits = bits; - return; -}; - -},{}],86:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -var utils = require('../utils/common'); -var adler32 = require('./adler32'); -var crc32 = require('./crc32'); -var inflate_fast = require('./inffast'); -var inflate_table = require('./inftrees'); - -var CODES = 0; -var LENS = 1; -var DISTS = 2; - -/* Public constants ==========================================================*/ -/* ===========================================================================*/ - - -/* Allowed flush values; see deflate() and inflate() below for details */ -//var Z_NO_FLUSH = 0; -//var Z_PARTIAL_FLUSH = 1; -//var Z_SYNC_FLUSH = 2; -//var Z_FULL_FLUSH = 3; -var Z_FINISH = 4; -var Z_BLOCK = 5; -var Z_TREES = 6; - - -/* Return codes for the compression/decompression functions. Negative values - * are errors, positive values are used for special but normal events. - */ -var Z_OK = 0; -var Z_STREAM_END = 1; -var Z_NEED_DICT = 2; -//var Z_ERRNO = -1; -var Z_STREAM_ERROR = -2; -var Z_DATA_ERROR = -3; -var Z_MEM_ERROR = -4; -var Z_BUF_ERROR = -5; -//var Z_VERSION_ERROR = -6; - -/* The deflate compression method */ -var Z_DEFLATED = 8; - - -/* STATES ====================================================================*/ -/* ===========================================================================*/ - - -var HEAD = 1; /* i: waiting for magic header */ -var FLAGS = 2; /* i: waiting for method and flags (gzip) */ -var TIME = 3; /* i: waiting for modification time (gzip) */ -var OS = 4; /* i: waiting for extra flags and operating system (gzip) */ -var EXLEN = 5; /* i: waiting for extra length (gzip) */ -var EXTRA = 6; /* i: waiting for extra bytes (gzip) */ -var NAME = 7; /* i: waiting for end of file name (gzip) */ -var COMMENT = 8; /* i: waiting for end of comment (gzip) */ -var HCRC = 9; /* i: waiting for header crc (gzip) */ -var DICTID = 10; /* i: waiting for dictionary check value */ -var DICT = 11; /* waiting for inflateSetDictionary() call */ -var TYPE = 12; /* i: waiting for type bits, including last-flag bit */ -var TYPEDO = 13; /* i: same, but skip check to exit inflate on new block */ -var STORED = 14; /* i: waiting for stored size (length and complement) */ -var COPY_ = 15; /* i/o: same as COPY below, but only first time in */ -var COPY = 16; /* i/o: waiting for input or output to copy stored block */ -var TABLE = 17; /* i: waiting for dynamic block table lengths */ -var LENLENS = 18; /* i: waiting for code length code lengths */ -var CODELENS = 19; /* i: waiting for length/lit and distance code lengths */ -var LEN_ = 20; /* i: same as LEN below, but only first time in */ -var LEN = 21; /* i: waiting for length/lit/eob code */ -var LENEXT = 22; /* i: waiting for length extra bits */ -var DIST = 23; /* i: waiting for distance code */ -var DISTEXT = 24; /* i: waiting for distance extra bits */ -var MATCH = 25; /* o: waiting for output space to copy string */ -var LIT = 26; /* o: waiting for output space to write literal */ -var CHECK = 27; /* i: waiting for 32-bit check value */ -var LENGTH = 28; /* i: waiting for 32-bit length (gzip) */ -var DONE = 29; /* finished check, done -- remain here until reset */ -var BAD = 30; /* got a data error -- remain here until reset */ -var MEM = 31; /* got an inflate() memory error -- remain here until reset */ -var SYNC = 32; /* looking for synchronization bytes to restart inflate() */ - -/* ===========================================================================*/ - - - -var ENOUGH_LENS = 852; -var ENOUGH_DISTS = 592; -//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS); - -var MAX_WBITS = 15; -/* 32K LZ77 window */ -var DEF_WBITS = MAX_WBITS; - - -function zswap32(q) { - return (((q >>> 24) & 0xff) + - ((q >>> 8) & 0xff00) + - ((q & 0xff00) << 8) + - ((q & 0xff) << 24)); -} - - -function InflateState() { - this.mode = 0; /* current inflate mode */ - this.last = false; /* true if processing last block */ - this.wrap = 0; /* bit 0 true for zlib, bit 1 true for gzip */ - this.havedict = false; /* true if dictionary provided */ - this.flags = 0; /* gzip header method and flags (0 if zlib) */ - this.dmax = 0; /* zlib header max distance (INFLATE_STRICT) */ - this.check = 0; /* protected copy of check value */ - this.total = 0; /* protected copy of output count */ - // TODO: may be {} - this.head = null; /* where to save gzip header information */ - - /* sliding window */ - this.wbits = 0; /* log base 2 of requested window size */ - this.wsize = 0; /* window size or zero if not using window */ - this.whave = 0; /* valid bytes in the window */ - this.wnext = 0; /* window write index */ - this.window = null; /* allocated sliding window, if needed */ - - /* bit accumulator */ - this.hold = 0; /* input bit accumulator */ - this.bits = 0; /* number of bits in "in" */ - - /* for string and stored block copying */ - this.length = 0; /* literal or length of data to copy */ - this.offset = 0; /* distance back to copy string from */ - - /* for table and code decoding */ - this.extra = 0; /* extra bits needed */ - - /* fixed and dynamic code tables */ - this.lencode = null; /* starting table for length/literal codes */ - this.distcode = null; /* starting table for distance codes */ - this.lenbits = 0; /* index bits for lencode */ - this.distbits = 0; /* index bits for distcode */ - - /* dynamic table building */ - this.ncode = 0; /* number of code length code lengths */ - this.nlen = 0; /* number of length code lengths */ - this.ndist = 0; /* number of distance code lengths */ - this.have = 0; /* number of code lengths in lens[] */ - this.next = null; /* next available space in codes[] */ - - this.lens = new utils.Buf16(320); /* temporary storage for code lengths */ - this.work = new utils.Buf16(288); /* work area for code table building */ - - /* - because we don't have pointers in js, we use lencode and distcode directly - as buffers so we don't need codes - */ - //this.codes = new utils.Buf32(ENOUGH); /* space for code tables */ - this.lendyn = null; /* dynamic table for length/literal codes (JS specific) */ - this.distdyn = null; /* dynamic table for distance codes (JS specific) */ - this.sane = 0; /* if false, allow invalid distance too far */ - this.back = 0; /* bits back of last unprocessed length/lit */ - this.was = 0; /* initial length of match */ -} - -function inflateResetKeep(strm) { - var state; - - if (!strm || !strm.state) { return Z_STREAM_ERROR; } - state = strm.state; - strm.total_in = strm.total_out = state.total = 0; - strm.msg = ''; /*Z_NULL*/ - if (state.wrap) { /* to support ill-conceived Java test suite */ - strm.adler = state.wrap & 1; - } - state.mode = HEAD; - state.last = 0; - state.havedict = 0; - state.dmax = 32768; - state.head = null/*Z_NULL*/; - state.hold = 0; - state.bits = 0; - //state.lencode = state.distcode = state.next = state.codes; - state.lencode = state.lendyn = new utils.Buf32(ENOUGH_LENS); - state.distcode = state.distdyn = new utils.Buf32(ENOUGH_DISTS); - - state.sane = 1; - state.back = -1; - //Tracev((stderr, "inflate: reset\n")); - return Z_OK; -} - -function inflateReset(strm) { - var state; - - if (!strm || !strm.state) { return Z_STREAM_ERROR; } - state = strm.state; - state.wsize = 0; - state.whave = 0; - state.wnext = 0; - return inflateResetKeep(strm); - -} - -function inflateReset2(strm, windowBits) { - var wrap; - var state; - - /* get the state */ - if (!strm || !strm.state) { return Z_STREAM_ERROR; } - state = strm.state; - - /* extract wrap request from windowBits parameter */ - if (windowBits < 0) { - wrap = 0; - windowBits = -windowBits; - } - else { - wrap = (windowBits >> 4) + 1; - if (windowBits < 48) { - windowBits &= 15; - } - } - - /* set number of window bits, free window if different */ - if (windowBits && (windowBits < 8 || windowBits > 15)) { - return Z_STREAM_ERROR; - } - if (state.window !== null && state.wbits !== windowBits) { - state.window = null; - } - - /* update state and reset the rest of it */ - state.wrap = wrap; - state.wbits = windowBits; - return inflateReset(strm); -} - -function inflateInit2(strm, windowBits) { - var ret; - var state; - - if (!strm) { return Z_STREAM_ERROR; } - //strm.msg = Z_NULL; /* in case we return an error */ - - state = new InflateState(); - - //if (state === Z_NULL) return Z_MEM_ERROR; - //Tracev((stderr, "inflate: allocated\n")); - strm.state = state; - state.window = null/*Z_NULL*/; - ret = inflateReset2(strm, windowBits); - if (ret !== Z_OK) { - strm.state = null/*Z_NULL*/; - } - return ret; -} - -function inflateInit(strm) { - return inflateInit2(strm, DEF_WBITS); -} - - -/* - Return state with length and distance decoding tables and index sizes set to - fixed code decoding. Normally this returns fixed tables from inffixed.h. - If BUILDFIXED is defined, then instead this routine builds the tables the - first time it's called, and returns those tables the first time and - thereafter. This reduces the size of the code by about 2K bytes, in - exchange for a little execution time. However, BUILDFIXED should not be - used for threaded applications, since the rewriting of the tables and virgin - may not be thread-safe. - */ -var virgin = true; - -var lenfix, distfix; // We have no pointers in JS, so keep tables separate - -function fixedtables(state) { - /* build fixed huffman tables if first call (may not be thread safe) */ - if (virgin) { - var sym; - - lenfix = new utils.Buf32(512); - distfix = new utils.Buf32(32); - - /* literal/length table */ - sym = 0; - while (sym < 144) { state.lens[sym++] = 8; } - while (sym < 256) { state.lens[sym++] = 9; } - while (sym < 280) { state.lens[sym++] = 7; } - while (sym < 288) { state.lens[sym++] = 8; } - - inflate_table(LENS, state.lens, 0, 288, lenfix, 0, state.work, { bits: 9 }); - - /* distance table */ - sym = 0; - while (sym < 32) { state.lens[sym++] = 5; } - - inflate_table(DISTS, state.lens, 0, 32, distfix, 0, state.work, { bits: 5 }); - - /* do this just once */ - virgin = false; - } - - state.lencode = lenfix; - state.lenbits = 9; - state.distcode = distfix; - state.distbits = 5; -} - - -/* - Update the window with the last wsize (normally 32K) bytes written before - returning. If window does not exist yet, create it. This is only called - when a window is already in use, or when output has been written during this - inflate call, but the end of the deflate stream has not been reached yet. - It is also called to create a window for dictionary data when a dictionary - is loaded. - - Providing output buffers larger than 32K to inflate() should provide a speed - advantage, since only the last 32K of output is copied to the sliding window - upon return from inflate(), and since all distances after the first 32K of - output will fall in the output data, making match copies simpler and faster. - The advantage may be dependent on the size of the processor's data caches. - */ -function updatewindow(strm, src, end, copy) { - var dist; - var state = strm.state; - - /* if it hasn't been done already, allocate space for the window */ - if (state.window === null) { - state.wsize = 1 << state.wbits; - state.wnext = 0; - state.whave = 0; - - state.window = new utils.Buf8(state.wsize); - } - - /* copy state->wsize or less output bytes into the circular window */ - if (copy >= state.wsize) { - utils.arraySet(state.window, src, end - state.wsize, state.wsize, 0); - state.wnext = 0; - state.whave = state.wsize; - } - else { - dist = state.wsize - state.wnext; - if (dist > copy) { - dist = copy; - } - //zmemcpy(state->window + state->wnext, end - copy, dist); - utils.arraySet(state.window, src, end - copy, dist, state.wnext); - copy -= dist; - if (copy) { - //zmemcpy(state->window, end - copy, copy); - utils.arraySet(state.window, src, end - copy, copy, 0); - state.wnext = copy; - state.whave = state.wsize; - } - else { - state.wnext += dist; - if (state.wnext === state.wsize) { state.wnext = 0; } - if (state.whave < state.wsize) { state.whave += dist; } - } - } - return 0; -} - -function inflate(strm, flush) { - var state; - var input, output; // input/output buffers - var next; /* next input INDEX */ - var put; /* next output INDEX */ - var have, left; /* available input and output */ - var hold; /* bit buffer */ - var bits; /* bits in bit buffer */ - var _in, _out; /* save starting available input and output */ - var copy; /* number of stored or match bytes to copy */ - var from; /* where to copy match bytes from */ - var from_source; - var here = 0; /* current decoding table entry */ - var here_bits, here_op, here_val; // paked "here" denormalized (JS specific) - //var last; /* parent table entry */ - var last_bits, last_op, last_val; // paked "last" denormalized (JS specific) - var len; /* length to copy for repeats, bits to drop */ - var ret; /* return code */ - var hbuf = new utils.Buf8(4); /* buffer for gzip header crc calculation */ - var opts; - - var n; // temporary var for NEED_BITS - - var order = /* permutation of code lengths */ - [ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 ]; - - - if (!strm || !strm.state || !strm.output || - (!strm.input && strm.avail_in !== 0)) { - return Z_STREAM_ERROR; - } - - state = strm.state; - if (state.mode === TYPE) { state.mode = TYPEDO; } /* skip check */ - - - //--- LOAD() --- - put = strm.next_out; - output = strm.output; - left = strm.avail_out; - next = strm.next_in; - input = strm.input; - have = strm.avail_in; - hold = state.hold; - bits = state.bits; - //--- - - _in = have; - _out = left; - ret = Z_OK; - - inf_leave: // goto emulation - for (;;) { - switch (state.mode) { - case HEAD: - if (state.wrap === 0) { - state.mode = TYPEDO; - break; - } - //=== NEEDBITS(16); - while (bits < 16) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if ((state.wrap & 2) && hold === 0x8b1f) { /* gzip header */ - state.check = 0/*crc32(0L, Z_NULL, 0)*/; - //=== CRC2(state.check, hold); - hbuf[0] = hold & 0xff; - hbuf[1] = (hold >>> 8) & 0xff; - state.check = crc32(state.check, hbuf, 2, 0); - //===// - - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = FLAGS; - break; - } - state.flags = 0; /* expect zlib header */ - if (state.head) { - state.head.done = false; - } - if (!(state.wrap & 1) || /* check if zlib header allowed */ - (((hold & 0xff)/*BITS(8)*/ << 8) + (hold >> 8)) % 31) { - strm.msg = 'incorrect header check'; - state.mode = BAD; - break; - } - if ((hold & 0x0f)/*BITS(4)*/ !== Z_DEFLATED) { - strm.msg = 'unknown compression method'; - state.mode = BAD; - break; - } - //--- DROPBITS(4) ---// - hold >>>= 4; - bits -= 4; - //---// - len = (hold & 0x0f)/*BITS(4)*/ + 8; - if (state.wbits === 0) { - state.wbits = len; - } - else if (len > state.wbits) { - strm.msg = 'invalid window size'; - state.mode = BAD; - break; - } - state.dmax = 1 << len; - //Tracev((stderr, "inflate: zlib header ok\n")); - strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/; - state.mode = hold & 0x200 ? DICTID : TYPE; - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - break; - case FLAGS: - //=== NEEDBITS(16); */ - while (bits < 16) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.flags = hold; - if ((state.flags & 0xff) !== Z_DEFLATED) { - strm.msg = 'unknown compression method'; - state.mode = BAD; - break; - } - if (state.flags & 0xe000) { - strm.msg = 'unknown header flags set'; - state.mode = BAD; - break; - } - if (state.head) { - state.head.text = ((hold >> 8) & 1); - } - if (state.flags & 0x0200) { - //=== CRC2(state.check, hold); - hbuf[0] = hold & 0xff; - hbuf[1] = (hold >>> 8) & 0xff; - state.check = crc32(state.check, hbuf, 2, 0); - //===// - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = TIME; - /* falls through */ - case TIME: - //=== NEEDBITS(32); */ - while (bits < 32) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if (state.head) { - state.head.time = hold; - } - if (state.flags & 0x0200) { - //=== CRC4(state.check, hold) - hbuf[0] = hold & 0xff; - hbuf[1] = (hold >>> 8) & 0xff; - hbuf[2] = (hold >>> 16) & 0xff; - hbuf[3] = (hold >>> 24) & 0xff; - state.check = crc32(state.check, hbuf, 4, 0); - //=== - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = OS; - /* falls through */ - case OS: - //=== NEEDBITS(16); */ - while (bits < 16) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if (state.head) { - state.head.xflags = (hold & 0xff); - state.head.os = (hold >> 8); - } - if (state.flags & 0x0200) { - //=== CRC2(state.check, hold); - hbuf[0] = hold & 0xff; - hbuf[1] = (hold >>> 8) & 0xff; - state.check = crc32(state.check, hbuf, 2, 0); - //===// - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = EXLEN; - /* falls through */ - case EXLEN: - if (state.flags & 0x0400) { - //=== NEEDBITS(16); */ - while (bits < 16) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.length = hold; - if (state.head) { - state.head.extra_len = hold; - } - if (state.flags & 0x0200) { - //=== CRC2(state.check, hold); - hbuf[0] = hold & 0xff; - hbuf[1] = (hold >>> 8) & 0xff; - state.check = crc32(state.check, hbuf, 2, 0); - //===// - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - } - else if (state.head) { - state.head.extra = null/*Z_NULL*/; - } - state.mode = EXTRA; - /* falls through */ - case EXTRA: - if (state.flags & 0x0400) { - copy = state.length; - if (copy > have) { copy = have; } - if (copy) { - if (state.head) { - len = state.head.extra_len - state.length; - if (!state.head.extra) { - // Use untyped array for more convenient processing later - state.head.extra = new Array(state.head.extra_len); - } - utils.arraySet( - state.head.extra, - input, - next, - // extra field is limited to 65536 bytes - // - no need for additional size check - copy, - /*len + copy > state.head.extra_max - len ? state.head.extra_max : copy,*/ - len - ); - //zmemcpy(state.head.extra + len, next, - // len + copy > state.head.extra_max ? - // state.head.extra_max - len : copy); - } - if (state.flags & 0x0200) { - state.check = crc32(state.check, input, copy, next); - } - have -= copy; - next += copy; - state.length -= copy; - } - if (state.length) { break inf_leave; } - } - state.length = 0; - state.mode = NAME; - /* falls through */ - case NAME: - if (state.flags & 0x0800) { - if (have === 0) { break inf_leave; } - copy = 0; - do { - // TODO: 2 or 1 bytes? - len = input[next + copy++]; - /* use constant limit because in js we should not preallocate memory */ - if (state.head && len && - (state.length < 65536 /*state.head.name_max*/)) { - state.head.name += String.fromCharCode(len); - } - } while (len && copy < have); - - if (state.flags & 0x0200) { - state.check = crc32(state.check, input, copy, next); - } - have -= copy; - next += copy; - if (len) { break inf_leave; } - } - else if (state.head) { - state.head.name = null; - } - state.length = 0; - state.mode = COMMENT; - /* falls through */ - case COMMENT: - if (state.flags & 0x1000) { - if (have === 0) { break inf_leave; } - copy = 0; - do { - len = input[next + copy++]; - /* use constant limit because in js we should not preallocate memory */ - if (state.head && len && - (state.length < 65536 /*state.head.comm_max*/)) { - state.head.comment += String.fromCharCode(len); - } - } while (len && copy < have); - if (state.flags & 0x0200) { - state.check = crc32(state.check, input, copy, next); - } - have -= copy; - next += copy; - if (len) { break inf_leave; } - } - else if (state.head) { - state.head.comment = null; - } - state.mode = HCRC; - /* falls through */ - case HCRC: - if (state.flags & 0x0200) { - //=== NEEDBITS(16); */ - while (bits < 16) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if (hold !== (state.check & 0xffff)) { - strm.msg = 'header crc mismatch'; - state.mode = BAD; - break; - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - } - if (state.head) { - state.head.hcrc = ((state.flags >> 9) & 1); - state.head.done = true; - } - strm.adler = state.check = 0; - state.mode = TYPE; - break; - case DICTID: - //=== NEEDBITS(32); */ - while (bits < 32) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - strm.adler = state.check = zswap32(hold); - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = DICT; - /* falls through */ - case DICT: - if (state.havedict === 0) { - //--- RESTORE() --- - strm.next_out = put; - strm.avail_out = left; - strm.next_in = next; - strm.avail_in = have; - state.hold = hold; - state.bits = bits; - //--- - return Z_NEED_DICT; - } - strm.adler = state.check = 1/*adler32(0L, Z_NULL, 0)*/; - state.mode = TYPE; - /* falls through */ - case TYPE: - if (flush === Z_BLOCK || flush === Z_TREES) { break inf_leave; } - /* falls through */ - case TYPEDO: - if (state.last) { - //--- BYTEBITS() ---// - hold >>>= bits & 7; - bits -= bits & 7; - //---// - state.mode = CHECK; - break; - } - //=== NEEDBITS(3); */ - while (bits < 3) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.last = (hold & 0x01)/*BITS(1)*/; - //--- DROPBITS(1) ---// - hold >>>= 1; - bits -= 1; - //---// - - switch ((hold & 0x03)/*BITS(2)*/) { - case 0: /* stored block */ - //Tracev((stderr, "inflate: stored block%s\n", - // state.last ? " (last)" : "")); - state.mode = STORED; - break; - case 1: /* fixed block */ - fixedtables(state); - //Tracev((stderr, "inflate: fixed codes block%s\n", - // state.last ? " (last)" : "")); - state.mode = LEN_; /* decode codes */ - if (flush === Z_TREES) { - //--- DROPBITS(2) ---// - hold >>>= 2; - bits -= 2; - //---// - break inf_leave; - } - break; - case 2: /* dynamic block */ - //Tracev((stderr, "inflate: dynamic codes block%s\n", - // state.last ? " (last)" : "")); - state.mode = TABLE; - break; - case 3: - strm.msg = 'invalid block type'; - state.mode = BAD; - } - //--- DROPBITS(2) ---// - hold >>>= 2; - bits -= 2; - //---// - break; - case STORED: - //--- BYTEBITS() ---// /* go to byte boundary */ - hold >>>= bits & 7; - bits -= bits & 7; - //---// - //=== NEEDBITS(32); */ - while (bits < 32) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if ((hold & 0xffff) !== ((hold >>> 16) ^ 0xffff)) { - strm.msg = 'invalid stored block lengths'; - state.mode = BAD; - break; - } - state.length = hold & 0xffff; - //Tracev((stderr, "inflate: stored length %u\n", - // state.length)); - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - state.mode = COPY_; - if (flush === Z_TREES) { break inf_leave; } - /* falls through */ - case COPY_: - state.mode = COPY; - /* falls through */ - case COPY: - copy = state.length; - if (copy) { - if (copy > have) { copy = have; } - if (copy > left) { copy = left; } - if (copy === 0) { break inf_leave; } - //--- zmemcpy(put, next, copy); --- - utils.arraySet(output, input, next, copy, put); - //---// - have -= copy; - next += copy; - left -= copy; - put += copy; - state.length -= copy; - break; - } - //Tracev((stderr, "inflate: stored end\n")); - state.mode = TYPE; - break; - case TABLE: - //=== NEEDBITS(14); */ - while (bits < 14) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.nlen = (hold & 0x1f)/*BITS(5)*/ + 257; - //--- DROPBITS(5) ---// - hold >>>= 5; - bits -= 5; - //---// - state.ndist = (hold & 0x1f)/*BITS(5)*/ + 1; - //--- DROPBITS(5) ---// - hold >>>= 5; - bits -= 5; - //---// - state.ncode = (hold & 0x0f)/*BITS(4)*/ + 4; - //--- DROPBITS(4) ---// - hold >>>= 4; - bits -= 4; - //---// -//#ifndef PKZIP_BUG_WORKAROUND - if (state.nlen > 286 || state.ndist > 30) { - strm.msg = 'too many length or distance symbols'; - state.mode = BAD; - break; - } -//#endif - //Tracev((stderr, "inflate: table sizes ok\n")); - state.have = 0; - state.mode = LENLENS; - /* falls through */ - case LENLENS: - while (state.have < state.ncode) { - //=== NEEDBITS(3); - while (bits < 3) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.lens[order[state.have++]] = (hold & 0x07);//BITS(3); - //--- DROPBITS(3) ---// - hold >>>= 3; - bits -= 3; - //---// - } - while (state.have < 19) { - state.lens[order[state.have++]] = 0; - } - // We have separate tables & no pointers. 2 commented lines below not needed. - //state.next = state.codes; - //state.lencode = state.next; - // Switch to use dynamic table - state.lencode = state.lendyn; - state.lenbits = 7; - - opts = { bits: state.lenbits }; - ret = inflate_table(CODES, state.lens, 0, 19, state.lencode, 0, state.work, opts); - state.lenbits = opts.bits; - - if (ret) { - strm.msg = 'invalid code lengths set'; - state.mode = BAD; - break; - } - //Tracev((stderr, "inflate: code lengths ok\n")); - state.have = 0; - state.mode = CODELENS; - /* falls through */ - case CODELENS: - while (state.have < state.nlen + state.ndist) { - for (;;) { - here = state.lencode[hold & ((1 << state.lenbits) - 1)];/*BITS(state.lenbits)*/ - here_bits = here >>> 24; - here_op = (here >>> 16) & 0xff; - here_val = here & 0xffff; - - if ((here_bits) <= bits) { break; } - //--- PULLBYTE() ---// - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - //---// - } - if (here_val < 16) { - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - state.lens[state.have++] = here_val; - } - else { - if (here_val === 16) { - //=== NEEDBITS(here.bits + 2); - n = here_bits + 2; - while (bits < n) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - if (state.have === 0) { - strm.msg = 'invalid bit length repeat'; - state.mode = BAD; - break; - } - len = state.lens[state.have - 1]; - copy = 3 + (hold & 0x03);//BITS(2); - //--- DROPBITS(2) ---// - hold >>>= 2; - bits -= 2; - //---// - } - else if (here_val === 17) { - //=== NEEDBITS(here.bits + 3); - n = here_bits + 3; - while (bits < n) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - len = 0; - copy = 3 + (hold & 0x07);//BITS(3); - //--- DROPBITS(3) ---// - hold >>>= 3; - bits -= 3; - //---// - } - else { - //=== NEEDBITS(here.bits + 7); - n = here_bits + 7; - while (bits < n) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - len = 0; - copy = 11 + (hold & 0x7f);//BITS(7); - //--- DROPBITS(7) ---// - hold >>>= 7; - bits -= 7; - //---// - } - if (state.have + copy > state.nlen + state.ndist) { - strm.msg = 'invalid bit length repeat'; - state.mode = BAD; - break; - } - while (copy--) { - state.lens[state.have++] = len; - } - } - } - - /* handle error breaks in while */ - if (state.mode === BAD) { break; } - - /* check for end-of-block code (better have one) */ - if (state.lens[256] === 0) { - strm.msg = 'invalid code -- missing end-of-block'; - state.mode = BAD; - break; - } - - /* build code tables -- note: do not change the lenbits or distbits - values here (9 and 6) without reading the comments in inftrees.h - concerning the ENOUGH constants, which depend on those values */ - state.lenbits = 9; - - opts = { bits: state.lenbits }; - ret = inflate_table(LENS, state.lens, 0, state.nlen, state.lencode, 0, state.work, opts); - // We have separate tables & no pointers. 2 commented lines below not needed. - // state.next_index = opts.table_index; - state.lenbits = opts.bits; - // state.lencode = state.next; - - if (ret) { - strm.msg = 'invalid literal/lengths set'; - state.mode = BAD; - break; - } - - state.distbits = 6; - //state.distcode.copy(state.codes); - // Switch to use dynamic table - state.distcode = state.distdyn; - opts = { bits: state.distbits }; - ret = inflate_table(DISTS, state.lens, state.nlen, state.ndist, state.distcode, 0, state.work, opts); - // We have separate tables & no pointers. 2 commented lines below not needed. - // state.next_index = opts.table_index; - state.distbits = opts.bits; - // state.distcode = state.next; - - if (ret) { - strm.msg = 'invalid distances set'; - state.mode = BAD; - break; - } - //Tracev((stderr, 'inflate: codes ok\n')); - state.mode = LEN_; - if (flush === Z_TREES) { break inf_leave; } - /* falls through */ - case LEN_: - state.mode = LEN; - /* falls through */ - case LEN: - if (have >= 6 && left >= 258) { - //--- RESTORE() --- - strm.next_out = put; - strm.avail_out = left; - strm.next_in = next; - strm.avail_in = have; - state.hold = hold; - state.bits = bits; - //--- - inflate_fast(strm, _out); - //--- LOAD() --- - put = strm.next_out; - output = strm.output; - left = strm.avail_out; - next = strm.next_in; - input = strm.input; - have = strm.avail_in; - hold = state.hold; - bits = state.bits; - //--- - - if (state.mode === TYPE) { - state.back = -1; - } - break; - } - state.back = 0; - for (;;) { - here = state.lencode[hold & ((1 << state.lenbits) - 1)]; /*BITS(state.lenbits)*/ - here_bits = here >>> 24; - here_op = (here >>> 16) & 0xff; - here_val = here & 0xffff; - - if (here_bits <= bits) { break; } - //--- PULLBYTE() ---// - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - //---// - } - if (here_op && (here_op & 0xf0) === 0) { - last_bits = here_bits; - last_op = here_op; - last_val = here_val; - for (;;) { - here = state.lencode[last_val + - ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)]; - here_bits = here >>> 24; - here_op = (here >>> 16) & 0xff; - here_val = here & 0xffff; - - if ((last_bits + here_bits) <= bits) { break; } - //--- PULLBYTE() ---// - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - //---// - } - //--- DROPBITS(last.bits) ---// - hold >>>= last_bits; - bits -= last_bits; - //---// - state.back += last_bits; - } - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - state.back += here_bits; - state.length = here_val; - if (here_op === 0) { - //Tracevv((stderr, here.val >= 0x20 && here.val < 0x7f ? - // "inflate: literal '%c'\n" : - // "inflate: literal 0x%02x\n", here.val)); - state.mode = LIT; - break; - } - if (here_op & 32) { - //Tracevv((stderr, "inflate: end of block\n")); - state.back = -1; - state.mode = TYPE; - break; - } - if (here_op & 64) { - strm.msg = 'invalid literal/length code'; - state.mode = BAD; - break; - } - state.extra = here_op & 15; - state.mode = LENEXT; - /* falls through */ - case LENEXT: - if (state.extra) { - //=== NEEDBITS(state.extra); - n = state.extra; - while (bits < n) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.length += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/; - //--- DROPBITS(state.extra) ---// - hold >>>= state.extra; - bits -= state.extra; - //---// - state.back += state.extra; - } - //Tracevv((stderr, "inflate: length %u\n", state.length)); - state.was = state.length; - state.mode = DIST; - /* falls through */ - case DIST: - for (;;) { - here = state.distcode[hold & ((1 << state.distbits) - 1)];/*BITS(state.distbits)*/ - here_bits = here >>> 24; - here_op = (here >>> 16) & 0xff; - here_val = here & 0xffff; - - if ((here_bits) <= bits) { break; } - //--- PULLBYTE() ---// - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - //---// - } - if ((here_op & 0xf0) === 0) { - last_bits = here_bits; - last_op = here_op; - last_val = here_val; - for (;;) { - here = state.distcode[last_val + - ((hold & ((1 << (last_bits + last_op)) - 1))/*BITS(last.bits + last.op)*/ >> last_bits)]; - here_bits = here >>> 24; - here_op = (here >>> 16) & 0xff; - here_val = here & 0xffff; - - if ((last_bits + here_bits) <= bits) { break; } - //--- PULLBYTE() ---// - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - //---// - } - //--- DROPBITS(last.bits) ---// - hold >>>= last_bits; - bits -= last_bits; - //---// - state.back += last_bits; - } - //--- DROPBITS(here.bits) ---// - hold >>>= here_bits; - bits -= here_bits; - //---// - state.back += here_bits; - if (here_op & 64) { - strm.msg = 'invalid distance code'; - state.mode = BAD; - break; - } - state.offset = here_val; - state.extra = (here_op) & 15; - state.mode = DISTEXT; - /* falls through */ - case DISTEXT: - if (state.extra) { - //=== NEEDBITS(state.extra); - n = state.extra; - while (bits < n) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - state.offset += hold & ((1 << state.extra) - 1)/*BITS(state.extra)*/; - //--- DROPBITS(state.extra) ---// - hold >>>= state.extra; - bits -= state.extra; - //---// - state.back += state.extra; - } -//#ifdef INFLATE_STRICT - if (state.offset > state.dmax) { - strm.msg = 'invalid distance too far back'; - state.mode = BAD; - break; - } -//#endif - //Tracevv((stderr, "inflate: distance %u\n", state.offset)); - state.mode = MATCH; - /* falls through */ - case MATCH: - if (left === 0) { break inf_leave; } - copy = _out - left; - if (state.offset > copy) { /* copy from window */ - copy = state.offset - copy; - if (copy > state.whave) { - if (state.sane) { - strm.msg = 'invalid distance too far back'; - state.mode = BAD; - break; - } -// (!) This block is disabled in zlib defaults, -// don't enable it for binary compatibility -//#ifdef INFLATE_ALLOW_INVALID_DISTANCE_TOOFAR_ARRR -// Trace((stderr, "inflate.c too far\n")); -// copy -= state.whave; -// if (copy > state.length) { copy = state.length; } -// if (copy > left) { copy = left; } -// left -= copy; -// state.length -= copy; -// do { -// output[put++] = 0; -// } while (--copy); -// if (state.length === 0) { state.mode = LEN; } -// break; -//#endif - } - if (copy > state.wnext) { - copy -= state.wnext; - from = state.wsize - copy; - } - else { - from = state.wnext - copy; - } - if (copy > state.length) { copy = state.length; } - from_source = state.window; - } - else { /* copy from output */ - from_source = output; - from = put - state.offset; - copy = state.length; - } - if (copy > left) { copy = left; } - left -= copy; - state.length -= copy; - do { - output[put++] = from_source[from++]; - } while (--copy); - if (state.length === 0) { state.mode = LEN; } - break; - case LIT: - if (left === 0) { break inf_leave; } - output[put++] = state.length; - left--; - state.mode = LEN; - break; - case CHECK: - if (state.wrap) { - //=== NEEDBITS(32); - while (bits < 32) { - if (have === 0) { break inf_leave; } - have--; - // Use '|' instead of '+' to make sure that result is signed - hold |= input[next++] << bits; - bits += 8; - } - //===// - _out -= left; - strm.total_out += _out; - state.total += _out; - if (_out) { - strm.adler = state.check = - /*UPDATE(state.check, put - _out, _out);*/ - (state.flags ? crc32(state.check, output, _out, put - _out) : adler32(state.check, output, _out, put - _out)); - - } - _out = left; - // NB: crc32 stored as signed 32-bit int, zswap32 returns signed too - if ((state.flags ? hold : zswap32(hold)) !== state.check) { - strm.msg = 'incorrect data check'; - state.mode = BAD; - break; - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - //Tracev((stderr, "inflate: check matches trailer\n")); - } - state.mode = LENGTH; - /* falls through */ - case LENGTH: - if (state.wrap && state.flags) { - //=== NEEDBITS(32); - while (bits < 32) { - if (have === 0) { break inf_leave; } - have--; - hold += input[next++] << bits; - bits += 8; - } - //===// - if (hold !== (state.total & 0xffffffff)) { - strm.msg = 'incorrect length check'; - state.mode = BAD; - break; - } - //=== INITBITS(); - hold = 0; - bits = 0; - //===// - //Tracev((stderr, "inflate: length matches trailer\n")); - } - state.mode = DONE; - /* falls through */ - case DONE: - ret = Z_STREAM_END; - break inf_leave; - case BAD: - ret = Z_DATA_ERROR; - break inf_leave; - case MEM: - return Z_MEM_ERROR; - case SYNC: - /* falls through */ - default: - return Z_STREAM_ERROR; - } - } - - // inf_leave <- here is real place for "goto inf_leave", emulated via "break inf_leave" - - /* - Return from inflate(), updating the total counts and the check value. - If there was no progress during the inflate() call, return a buffer - error. Call updatewindow() to create and/or update the window state. - Note: a memory error from inflate() is non-recoverable. - */ - - //--- RESTORE() --- - strm.next_out = put; - strm.avail_out = left; - strm.next_in = next; - strm.avail_in = have; - state.hold = hold; - state.bits = bits; - //--- - - if (state.wsize || (_out !== strm.avail_out && state.mode < BAD && - (state.mode < CHECK || flush !== Z_FINISH))) { - if (updatewindow(strm, strm.output, strm.next_out, _out - strm.avail_out)) { - state.mode = MEM; - return Z_MEM_ERROR; - } - } - _in -= strm.avail_in; - _out -= strm.avail_out; - strm.total_in += _in; - strm.total_out += _out; - state.total += _out; - if (state.wrap && _out) { - strm.adler = state.check = /*UPDATE(state.check, strm.next_out - _out, _out);*/ - (state.flags ? crc32(state.check, output, _out, strm.next_out - _out) : adler32(state.check, output, _out, strm.next_out - _out)); - } - strm.data_type = state.bits + (state.last ? 64 : 0) + - (state.mode === TYPE ? 128 : 0) + - (state.mode === LEN_ || state.mode === COPY_ ? 256 : 0); - if (((_in === 0 && _out === 0) || flush === Z_FINISH) && ret === Z_OK) { - ret = Z_BUF_ERROR; - } - return ret; -} - -function inflateEnd(strm) { - - if (!strm || !strm.state /*|| strm->zfree == (free_func)0*/) { - return Z_STREAM_ERROR; - } - - var state = strm.state; - if (state.window) { - state.window = null; - } - strm.state = null; - return Z_OK; -} - -function inflateGetHeader(strm, head) { - var state; - - /* check state */ - if (!strm || !strm.state) { return Z_STREAM_ERROR; } - state = strm.state; - if ((state.wrap & 2) === 0) { return Z_STREAM_ERROR; } - - /* save header structure */ - state.head = head; - head.done = false; - return Z_OK; -} - -function inflateSetDictionary(strm, dictionary) { - var dictLength = dictionary.length; - - var state; - var dictid; - var ret; - - /* check state */ - if (!strm /* == Z_NULL */ || !strm.state /* == Z_NULL */) { return Z_STREAM_ERROR; } - state = strm.state; - - if (state.wrap !== 0 && state.mode !== DICT) { - return Z_STREAM_ERROR; - } - - /* check for correct dictionary identifier */ - if (state.mode === DICT) { - dictid = 1; /* adler32(0, null, 0)*/ - /* dictid = adler32(dictid, dictionary, dictLength); */ - dictid = adler32(dictid, dictionary, dictLength, 0); - if (dictid !== state.check) { - return Z_DATA_ERROR; - } - } - /* copy dictionary to window using updatewindow(), which will amend the - existing dictionary if appropriate */ - ret = updatewindow(strm, dictionary, dictLength, dictLength); - if (ret) { - state.mode = MEM; - return Z_MEM_ERROR; - } - state.havedict = 1; - // Tracev((stderr, "inflate: dictionary set\n")); - return Z_OK; -} - -exports.inflateReset = inflateReset; -exports.inflateReset2 = inflateReset2; -exports.inflateResetKeep = inflateResetKeep; -exports.inflateInit = inflateInit; -exports.inflateInit2 = inflateInit2; -exports.inflate = inflate; -exports.inflateEnd = inflateEnd; -exports.inflateGetHeader = inflateGetHeader; -exports.inflateSetDictionary = inflateSetDictionary; -exports.inflateInfo = 'pako inflate (from Nodeca project)'; - -/* Not implemented -exports.inflateCopy = inflateCopy; -exports.inflateGetDictionary = inflateGetDictionary; -exports.inflateMark = inflateMark; -exports.inflatePrime = inflatePrime; -exports.inflateSync = inflateSync; -exports.inflateSyncPoint = inflateSyncPoint; -exports.inflateUndermine = inflateUndermine; -*/ - -},{"../utils/common":80,"./adler32":81,"./crc32":83,"./inffast":85,"./inftrees":87}],87:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -var utils = require('../utils/common'); - -var MAXBITS = 15; -var ENOUGH_LENS = 852; -var ENOUGH_DISTS = 592; -//var ENOUGH = (ENOUGH_LENS+ENOUGH_DISTS); - -var CODES = 0; -var LENS = 1; -var DISTS = 2; - -var lbase = [ /* Length codes 257..285 base */ - 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, - 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0 -]; - -var lext = [ /* Length codes 257..285 extra */ - 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, - 19, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 16, 72, 78 -]; - -var dbase = [ /* Distance codes 0..29 base */ - 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, - 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, - 8193, 12289, 16385, 24577, 0, 0 -]; - -var dext = [ /* Distance codes 0..29 extra */ - 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 24, 25, 25, 26, 26, 27, 27, - 28, 28, 29, 29, 64, 64 -]; - -module.exports = function inflate_table(type, lens, lens_index, codes, table, table_index, work, opts) -{ - var bits = opts.bits; - //here = opts.here; /* table entry for duplication */ - - var len = 0; /* a code's length in bits */ - var sym = 0; /* index of code symbols */ - var min = 0, max = 0; /* minimum and maximum code lengths */ - var root = 0; /* number of index bits for root table */ - var curr = 0; /* number of index bits for current table */ - var drop = 0; /* code bits to drop for sub-table */ - var left = 0; /* number of prefix codes available */ - var used = 0; /* code entries in table used */ - var huff = 0; /* Huffman code */ - var incr; /* for incrementing code, index */ - var fill; /* index for replicating entries */ - var low; /* low bits for current root entry */ - var mask; /* mask for low root bits */ - var next; /* next available space in table */ - var base = null; /* base value table to use */ - var base_index = 0; -// var shoextra; /* extra bits table to use */ - var end; /* use base and extra for symbol > end */ - var count = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* number of codes of each length */ - var offs = new utils.Buf16(MAXBITS + 1); //[MAXBITS+1]; /* offsets in table for each length */ - var extra = null; - var extra_index = 0; - - var here_bits, here_op, here_val; - - /* - Process a set of code lengths to create a canonical Huffman code. The - code lengths are lens[0..codes-1]. Each length corresponds to the - symbols 0..codes-1. The Huffman code is generated by first sorting the - symbols by length from short to long, and retaining the symbol order - for codes with equal lengths. Then the code starts with all zero bits - for the first code of the shortest length, and the codes are integer - increments for the same length, and zeros are appended as the length - increases. For the deflate format, these bits are stored backwards - from their more natural integer increment ordering, and so when the - decoding tables are built in the large loop below, the integer codes - are incremented backwards. - - This routine assumes, but does not check, that all of the entries in - lens[] are in the range 0..MAXBITS. The caller must assure this. - 1..MAXBITS is interpreted as that code length. zero means that that - symbol does not occur in this code. - - The codes are sorted by computing a count of codes for each length, - creating from that a table of starting indices for each length in the - sorted table, and then entering the symbols in order in the sorted - table. The sorted table is work[], with that space being provided by - the caller. - - The length counts are used for other purposes as well, i.e. finding - the minimum and maximum length codes, determining if there are any - codes at all, checking for a valid set of lengths, and looking ahead - at length counts to determine sub-table sizes when building the - decoding tables. - */ - - /* accumulate lengths for codes (assumes lens[] all in 0..MAXBITS) */ - for (len = 0; len <= MAXBITS; len++) { - count[len] = 0; - } - for (sym = 0; sym < codes; sym++) { - count[lens[lens_index + sym]]++; - } - - /* bound code lengths, force root to be within code lengths */ - root = bits; - for (max = MAXBITS; max >= 1; max--) { - if (count[max] !== 0) { break; } - } - if (root > max) { - root = max; - } - if (max === 0) { /* no symbols to code at all */ - //table.op[opts.table_index] = 64; //here.op = (var char)64; /* invalid code marker */ - //table.bits[opts.table_index] = 1; //here.bits = (var char)1; - //table.val[opts.table_index++] = 0; //here.val = (var short)0; - table[table_index++] = (1 << 24) | (64 << 16) | 0; - - - //table.op[opts.table_index] = 64; - //table.bits[opts.table_index] = 1; - //table.val[opts.table_index++] = 0; - table[table_index++] = (1 << 24) | (64 << 16) | 0; - - opts.bits = 1; - return 0; /* no symbols, but wait for decoding to report error */ - } - for (min = 1; min < max; min++) { - if (count[min] !== 0) { break; } - } - if (root < min) { - root = min; - } - - /* check for an over-subscribed or incomplete set of lengths */ - left = 1; - for (len = 1; len <= MAXBITS; len++) { - left <<= 1; - left -= count[len]; - if (left < 0) { - return -1; - } /* over-subscribed */ - } - if (left > 0 && (type === CODES || max !== 1)) { - return -1; /* incomplete set */ - } - - /* generate offsets into symbol table for each length for sorting */ - offs[1] = 0; - for (len = 1; len < MAXBITS; len++) { - offs[len + 1] = offs[len] + count[len]; - } - - /* sort symbols by length, by symbol order within each length */ - for (sym = 0; sym < codes; sym++) { - if (lens[lens_index + sym] !== 0) { - work[offs[lens[lens_index + sym]]++] = sym; - } - } - - /* - Create and fill in decoding tables. In this loop, the table being - filled is at next and has curr index bits. The code being used is huff - with length len. That code is converted to an index by dropping drop - bits off of the bottom. For codes where len is less than drop + curr, - those top drop + curr - len bits are incremented through all values to - fill the table with replicated entries. - - root is the number of index bits for the root table. When len exceeds - root, sub-tables are created pointed to by the root entry with an index - of the low root bits of huff. This is saved in low to check for when a - new sub-table should be started. drop is zero when the root table is - being filled, and drop is root when sub-tables are being filled. - - When a new sub-table is needed, it is necessary to look ahead in the - code lengths to determine what size sub-table is needed. The length - counts are used for this, and so count[] is decremented as codes are - entered in the tables. - - used keeps track of how many table entries have been allocated from the - provided *table space. It is checked for LENS and DIST tables against - the constants ENOUGH_LENS and ENOUGH_DISTS to guard against changes in - the initial root table size constants. See the comments in inftrees.h - for more information. - - sym increments through all symbols, and the loop terminates when - all codes of length max, i.e. all codes, have been processed. This - routine permits incomplete codes, so another loop after this one fills - in the rest of the decoding tables with invalid code markers. - */ - - /* set up for code type */ - // poor man optimization - use if-else instead of switch, - // to avoid deopts in old v8 - if (type === CODES) { - base = extra = work; /* dummy value--not used */ - end = 19; - - } else if (type === LENS) { - base = lbase; - base_index -= 257; - extra = lext; - extra_index -= 257; - end = 256; - - } else { /* DISTS */ - base = dbase; - extra = dext; - end = -1; - } - - /* initialize opts for loop */ - huff = 0; /* starting code */ - sym = 0; /* starting code symbol */ - len = min; /* starting code length */ - next = table_index; /* current table to fill in */ - curr = root; /* current table index bits */ - drop = 0; /* current bits to drop from code for index */ - low = -1; /* trigger new sub-table when len > root */ - used = 1 << root; /* use root table entries */ - mask = used - 1; /* mask for comparing low */ - - /* check available table space */ - if ((type === LENS && used > ENOUGH_LENS) || - (type === DISTS && used > ENOUGH_DISTS)) { - return 1; - } - - /* process all codes and make table entries */ - for (;;) { - /* create table entry */ - here_bits = len - drop; - if (work[sym] < end) { - here_op = 0; - here_val = work[sym]; - } - else if (work[sym] > end) { - here_op = extra[extra_index + work[sym]]; - here_val = base[base_index + work[sym]]; - } - else { - here_op = 32 + 64; /* end of block */ - here_val = 0; - } - - /* replicate for those indices with low len bits equal to huff */ - incr = 1 << (len - drop); - fill = 1 << curr; - min = fill; /* save offset to next table */ - do { - fill -= incr; - table[next + (huff >> drop) + fill] = (here_bits << 24) | (here_op << 16) | here_val |0; - } while (fill !== 0); - - /* backwards increment the len-bit code huff */ - incr = 1 << (len - 1); - while (huff & incr) { - incr >>= 1; - } - if (incr !== 0) { - huff &= incr - 1; - huff += incr; - } else { - huff = 0; - } - - /* go to next symbol, update count, len */ - sym++; - if (--count[len] === 0) { - if (len === max) { break; } - len = lens[lens_index + work[sym]]; - } - - /* create new sub-table if needed */ - if (len > root && (huff & mask) !== low) { - /* if first time, transition to sub-tables */ - if (drop === 0) { - drop = root; - } - - /* increment past last table */ - next += min; /* here min is 1 << curr */ - - /* determine length of next table */ - curr = len - drop; - left = 1 << curr; - while (curr + drop < max) { - left -= count[curr + drop]; - if (left <= 0) { break; } - curr++; - left <<= 1; - } - - /* check for enough space */ - used += 1 << curr; - if ((type === LENS && used > ENOUGH_LENS) || - (type === DISTS && used > ENOUGH_DISTS)) { - return 1; - } - - /* point entry in root table to sub-table */ - low = huff & mask; - /*table.op[low] = curr; - table.bits[low] = root; - table.val[low] = next - opts.table_index;*/ - table[low] = (root << 24) | (curr << 16) | (next - table_index) |0; - } - } - - /* fill in remaining table entry if code is incomplete (guaranteed to have - at most one remaining entry, since if the code is incomplete, the - maximum code length that was allowed to get this far is one bit) */ - if (huff !== 0) { - //table.op[next + huff] = 64; /* invalid code marker */ - //table.bits[next + huff] = len - drop; - //table.val[next + huff] = 0; - table[next + huff] = ((len - drop) << 24) | (64 << 16) |0; - } - - /* set return parameters */ - //opts.table_index += used; - opts.bits = root; - return 0; -}; - -},{"../utils/common":80}],88:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -module.exports = { - 2: 'need dictionary', /* Z_NEED_DICT 2 */ - 1: 'stream end', /* Z_STREAM_END 1 */ - 0: '', /* Z_OK 0 */ - '-1': 'file error', /* Z_ERRNO (-1) */ - '-2': 'stream error', /* Z_STREAM_ERROR (-2) */ - '-3': 'data error', /* Z_DATA_ERROR (-3) */ - '-4': 'insufficient memory', /* Z_MEM_ERROR (-4) */ - '-5': 'buffer error', /* Z_BUF_ERROR (-5) */ - '-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */ -}; - -},{}],89:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -/* eslint-disable space-unary-ops */ - -var utils = require('../utils/common'); - -/* Public constants ==========================================================*/ -/* ===========================================================================*/ - - -//var Z_FILTERED = 1; -//var Z_HUFFMAN_ONLY = 2; -//var Z_RLE = 3; -var Z_FIXED = 4; -//var Z_DEFAULT_STRATEGY = 0; - -/* Possible values of the data_type field (though see inflate()) */ -var Z_BINARY = 0; -var Z_TEXT = 1; -//var Z_ASCII = 1; // = Z_TEXT -var Z_UNKNOWN = 2; - -/*============================================================================*/ - - -function zero(buf) { var len = buf.length; while (--len >= 0) { buf[len] = 0; } } - -// From zutil.h - -var STORED_BLOCK = 0; -var STATIC_TREES = 1; -var DYN_TREES = 2; -/* The three kinds of block type */ - -var MIN_MATCH = 3; -var MAX_MATCH = 258; -/* The minimum and maximum match lengths */ - -// From deflate.h -/* =========================================================================== - * Internal compression state. - */ - -var LENGTH_CODES = 29; -/* number of length codes, not counting the special END_BLOCK code */ - -var LITERALS = 256; -/* number of literal bytes 0..255 */ - -var L_CODES = LITERALS + 1 + LENGTH_CODES; -/* number of Literal or Length codes, including the END_BLOCK code */ - -var D_CODES = 30; -/* number of distance codes */ - -var BL_CODES = 19; -/* number of codes used to transfer the bit lengths */ - -var HEAP_SIZE = 2 * L_CODES + 1; -/* maximum heap size */ - -var MAX_BITS = 15; -/* All codes must not exceed MAX_BITS bits */ - -var Buf_size = 16; -/* size of bit buffer in bi_buf */ - - -/* =========================================================================== - * Constants - */ - -var MAX_BL_BITS = 7; -/* Bit length codes must not exceed MAX_BL_BITS bits */ - -var END_BLOCK = 256; -/* end of block literal code */ - -var REP_3_6 = 16; -/* repeat previous bit length 3-6 times (2 bits of repeat count) */ - -var REPZ_3_10 = 17; -/* repeat a zero length 3-10 times (3 bits of repeat count) */ - -var REPZ_11_138 = 18; -/* repeat a zero length 11-138 times (7 bits of repeat count) */ - -/* eslint-disable comma-spacing,array-bracket-spacing */ -var extra_lbits = /* extra bits for each length code */ - [0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0]; - -var extra_dbits = /* extra bits for each distance code */ - [0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13]; - -var extra_blbits = /* extra bits for each bit length code */ - [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7]; - -var bl_order = - [16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]; -/* eslint-enable comma-spacing,array-bracket-spacing */ - -/* The lengths of the bit length codes are sent in order of decreasing - * probability, to avoid transmitting the lengths for unused bit length codes. - */ - -/* =========================================================================== - * Local data. These are initialized only once. - */ - -// We pre-fill arrays with 0 to avoid uninitialized gaps - -var DIST_CODE_LEN = 512; /* see definition of array dist_code below */ - -// !!!! Use flat array instead of structure, Freq = i*2, Len = i*2+1 -var static_ltree = new Array((L_CODES + 2) * 2); -zero(static_ltree); -/* The static literal tree. Since the bit lengths are imposed, there is no - * need for the L_CODES extra codes used during heap construction. However - * The codes 286 and 287 are needed to build a canonical tree (see _tr_init - * below). - */ - -var static_dtree = new Array(D_CODES * 2); -zero(static_dtree); -/* The static distance tree. (Actually a trivial tree since all codes use - * 5 bits.) - */ - -var _dist_code = new Array(DIST_CODE_LEN); -zero(_dist_code); -/* Distance codes. The first 256 values correspond to the distances - * 3 .. 258, the last 256 values correspond to the top 8 bits of - * the 15 bit distances. - */ - -var _length_code = new Array(MAX_MATCH - MIN_MATCH + 1); -zero(_length_code); -/* length code for each normalized match length (0 == MIN_MATCH) */ - -var base_length = new Array(LENGTH_CODES); -zero(base_length); -/* First normalized length for each code (0 = MIN_MATCH) */ - -var base_dist = new Array(D_CODES); -zero(base_dist); -/* First normalized distance for each code (0 = distance of 1) */ - - -function StaticTreeDesc(static_tree, extra_bits, extra_base, elems, max_length) { - - this.static_tree = static_tree; /* static tree or NULL */ - this.extra_bits = extra_bits; /* extra bits for each code or NULL */ - this.extra_base = extra_base; /* base index for extra_bits */ - this.elems = elems; /* max number of elements in the tree */ - this.max_length = max_length; /* max bit length for the codes */ - - // show if `static_tree` has data or dummy - needed for monomorphic objects - this.has_stree = static_tree && static_tree.length; -} - - -var static_l_desc; -var static_d_desc; -var static_bl_desc; - - -function TreeDesc(dyn_tree, stat_desc) { - this.dyn_tree = dyn_tree; /* the dynamic tree */ - this.max_code = 0; /* largest code with non zero frequency */ - this.stat_desc = stat_desc; /* the corresponding static tree */ -} - - - -function d_code(dist) { - return dist < 256 ? _dist_code[dist] : _dist_code[256 + (dist >>> 7)]; -} - - -/* =========================================================================== - * Output a short LSB first on the stream. - * IN assertion: there is enough room in pendingBuf. - */ -function put_short(s, w) { -// put_byte(s, (uch)((w) & 0xff)); -// put_byte(s, (uch)((ush)(w) >> 8)); - s.pending_buf[s.pending++] = (w) & 0xff; - s.pending_buf[s.pending++] = (w >>> 8) & 0xff; -} - - -/* =========================================================================== - * Send a value on a given number of bits. - * IN assertion: length <= 16 and value fits in length bits. - */ -function send_bits(s, value, length) { - if (s.bi_valid > (Buf_size - length)) { - s.bi_buf |= (value << s.bi_valid) & 0xffff; - put_short(s, s.bi_buf); - s.bi_buf = value >> (Buf_size - s.bi_valid); - s.bi_valid += length - Buf_size; - } else { - s.bi_buf |= (value << s.bi_valid) & 0xffff; - s.bi_valid += length; - } -} - - -function send_code(s, c, tree) { - send_bits(s, tree[c * 2]/*.Code*/, tree[c * 2 + 1]/*.Len*/); -} - - -/* =========================================================================== - * Reverse the first len bits of a code, using straightforward code (a faster - * method would use a table) - * IN assertion: 1 <= len <= 15 - */ -function bi_reverse(code, len) { - var res = 0; - do { - res |= code & 1; - code >>>= 1; - res <<= 1; - } while (--len > 0); - return res >>> 1; -} - - -/* =========================================================================== - * Flush the bit buffer, keeping at most 7 bits in it. - */ -function bi_flush(s) { - if (s.bi_valid === 16) { - put_short(s, s.bi_buf); - s.bi_buf = 0; - s.bi_valid = 0; - - } else if (s.bi_valid >= 8) { - s.pending_buf[s.pending++] = s.bi_buf & 0xff; - s.bi_buf >>= 8; - s.bi_valid -= 8; - } -} - - -/* =========================================================================== - * Compute the optimal bit lengths for a tree and update the total bit length - * for the current block. - * IN assertion: the fields freq and dad are set, heap[heap_max] and - * above are the tree nodes sorted by increasing frequency. - * OUT assertions: the field len is set to the optimal bit length, the - * array bl_count contains the frequencies for each bit length. - * The length opt_len is updated; static_len is also updated if stree is - * not null. - */ -function gen_bitlen(s, desc) -// deflate_state *s; -// tree_desc *desc; /* the tree descriptor */ -{ - var tree = desc.dyn_tree; - var max_code = desc.max_code; - var stree = desc.stat_desc.static_tree; - var has_stree = desc.stat_desc.has_stree; - var extra = desc.stat_desc.extra_bits; - var base = desc.stat_desc.extra_base; - var max_length = desc.stat_desc.max_length; - var h; /* heap index */ - var n, m; /* iterate over the tree elements */ - var bits; /* bit length */ - var xbits; /* extra bits */ - var f; /* frequency */ - var overflow = 0; /* number of elements with bit length too large */ - - for (bits = 0; bits <= MAX_BITS; bits++) { - s.bl_count[bits] = 0; - } - - /* In a first pass, compute the optimal bit lengths (which may - * overflow in the case of the bit length tree). - */ - tree[s.heap[s.heap_max] * 2 + 1]/*.Len*/ = 0; /* root of the heap */ - - for (h = s.heap_max + 1; h < HEAP_SIZE; h++) { - n = s.heap[h]; - bits = tree[tree[n * 2 + 1]/*.Dad*/ * 2 + 1]/*.Len*/ + 1; - if (bits > max_length) { - bits = max_length; - overflow++; - } - tree[n * 2 + 1]/*.Len*/ = bits; - /* We overwrite tree[n].Dad which is no longer needed */ - - if (n > max_code) { continue; } /* not a leaf node */ - - s.bl_count[bits]++; - xbits = 0; - if (n >= base) { - xbits = extra[n - base]; - } - f = tree[n * 2]/*.Freq*/; - s.opt_len += f * (bits + xbits); - if (has_stree) { - s.static_len += f * (stree[n * 2 + 1]/*.Len*/ + xbits); - } - } - if (overflow === 0) { return; } - - // Trace((stderr,"\nbit length overflow\n")); - /* This happens for example on obj2 and pic of the Calgary corpus */ - - /* Find the first bit length which could increase: */ - do { - bits = max_length - 1; - while (s.bl_count[bits] === 0) { bits--; } - s.bl_count[bits]--; /* move one leaf down the tree */ - s.bl_count[bits + 1] += 2; /* move one overflow item as its brother */ - s.bl_count[max_length]--; - /* The brother of the overflow item also moves one step up, - * but this does not affect bl_count[max_length] - */ - overflow -= 2; - } while (overflow > 0); - - /* Now recompute all bit lengths, scanning in increasing frequency. - * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all - * lengths instead of fixing only the wrong ones. This idea is taken - * from 'ar' written by Haruhiko Okumura.) - */ - for (bits = max_length; bits !== 0; bits--) { - n = s.bl_count[bits]; - while (n !== 0) { - m = s.heap[--h]; - if (m > max_code) { continue; } - if (tree[m * 2 + 1]/*.Len*/ !== bits) { - // Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits)); - s.opt_len += (bits - tree[m * 2 + 1]/*.Len*/) * tree[m * 2]/*.Freq*/; - tree[m * 2 + 1]/*.Len*/ = bits; - } - n--; - } - } -} - - -/* =========================================================================== - * Generate the codes for a given tree and bit counts (which need not be - * optimal). - * IN assertion: the array bl_count contains the bit length statistics for - * the given tree and the field len is set for all tree elements. - * OUT assertion: the field code is set for all tree elements of non - * zero code length. - */ -function gen_codes(tree, max_code, bl_count) -// ct_data *tree; /* the tree to decorate */ -// int max_code; /* largest code with non zero frequency */ -// ushf *bl_count; /* number of codes at each bit length */ -{ - var next_code = new Array(MAX_BITS + 1); /* next code value for each bit length */ - var code = 0; /* running code value */ - var bits; /* bit index */ - var n; /* code index */ - - /* The distribution counts are first used to generate the code values - * without bit reversal. - */ - for (bits = 1; bits <= MAX_BITS; bits++) { - next_code[bits] = code = (code + bl_count[bits - 1]) << 1; - } - /* Check that the bit counts in bl_count are consistent. The last code - * must be all ones. - */ - //Assert (code + bl_count[MAX_BITS]-1 == (1< length code (0..28) */ - length = 0; - for (code = 0; code < LENGTH_CODES - 1; code++) { - base_length[code] = length; - for (n = 0; n < (1 << extra_lbits[code]); n++) { - _length_code[length++] = code; - } - } - //Assert (length == 256, "tr_static_init: length != 256"); - /* Note that the length 255 (match length 258) can be represented - * in two different ways: code 284 + 5 bits or code 285, so we - * overwrite length_code[255] to use the best encoding: - */ - _length_code[length - 1] = code; - - /* Initialize the mapping dist (0..32K) -> dist code (0..29) */ - dist = 0; - for (code = 0; code < 16; code++) { - base_dist[code] = dist; - for (n = 0; n < (1 << extra_dbits[code]); n++) { - _dist_code[dist++] = code; - } - } - //Assert (dist == 256, "tr_static_init: dist != 256"); - dist >>= 7; /* from now on, all distances are divided by 128 */ - for (; code < D_CODES; code++) { - base_dist[code] = dist << 7; - for (n = 0; n < (1 << (extra_dbits[code] - 7)); n++) { - _dist_code[256 + dist++] = code; - } - } - //Assert (dist == 256, "tr_static_init: 256+dist != 512"); - - /* Construct the codes of the static literal tree */ - for (bits = 0; bits <= MAX_BITS; bits++) { - bl_count[bits] = 0; - } - - n = 0; - while (n <= 143) { - static_ltree[n * 2 + 1]/*.Len*/ = 8; - n++; - bl_count[8]++; - } - while (n <= 255) { - static_ltree[n * 2 + 1]/*.Len*/ = 9; - n++; - bl_count[9]++; - } - while (n <= 279) { - static_ltree[n * 2 + 1]/*.Len*/ = 7; - n++; - bl_count[7]++; - } - while (n <= 287) { - static_ltree[n * 2 + 1]/*.Len*/ = 8; - n++; - bl_count[8]++; - } - /* Codes 286 and 287 do not exist, but we must include them in the - * tree construction to get a canonical Huffman tree (longest code - * all ones) - */ - gen_codes(static_ltree, L_CODES + 1, bl_count); - - /* The static distance tree is trivial: */ - for (n = 0; n < D_CODES; n++) { - static_dtree[n * 2 + 1]/*.Len*/ = 5; - static_dtree[n * 2]/*.Code*/ = bi_reverse(n, 5); - } - - // Now data ready and we can init static trees - static_l_desc = new StaticTreeDesc(static_ltree, extra_lbits, LITERALS + 1, L_CODES, MAX_BITS); - static_d_desc = new StaticTreeDesc(static_dtree, extra_dbits, 0, D_CODES, MAX_BITS); - static_bl_desc = new StaticTreeDesc(new Array(0), extra_blbits, 0, BL_CODES, MAX_BL_BITS); - - //static_init_done = true; -} - - -/* =========================================================================== - * Initialize a new block. - */ -function init_block(s) { - var n; /* iterates over tree elements */ - - /* Initialize the trees. */ - for (n = 0; n < L_CODES; n++) { s.dyn_ltree[n * 2]/*.Freq*/ = 0; } - for (n = 0; n < D_CODES; n++) { s.dyn_dtree[n * 2]/*.Freq*/ = 0; } - for (n = 0; n < BL_CODES; n++) { s.bl_tree[n * 2]/*.Freq*/ = 0; } - - s.dyn_ltree[END_BLOCK * 2]/*.Freq*/ = 1; - s.opt_len = s.static_len = 0; - s.last_lit = s.matches = 0; -} - - -/* =========================================================================== - * Flush the bit buffer and align the output on a byte boundary - */ -function bi_windup(s) -{ - if (s.bi_valid > 8) { - put_short(s, s.bi_buf); - } else if (s.bi_valid > 0) { - //put_byte(s, (Byte)s->bi_buf); - s.pending_buf[s.pending++] = s.bi_buf; - } - s.bi_buf = 0; - s.bi_valid = 0; -} - -/* =========================================================================== - * Copy a stored block, storing first the length and its - * one's complement if requested. - */ -function copy_block(s, buf, len, header) -//DeflateState *s; -//charf *buf; /* the input data */ -//unsigned len; /* its length */ -//int header; /* true if block header must be written */ -{ - bi_windup(s); /* align on byte boundary */ - - if (header) { - put_short(s, len); - put_short(s, ~len); - } -// while (len--) { -// put_byte(s, *buf++); -// } - utils.arraySet(s.pending_buf, s.window, buf, len, s.pending); - s.pending += len; -} - -/* =========================================================================== - * Compares to subtrees, using the tree depth as tie breaker when - * the subtrees have equal frequency. This minimizes the worst case length. - */ -function smaller(tree, n, m, depth) { - var _n2 = n * 2; - var _m2 = m * 2; - return (tree[_n2]/*.Freq*/ < tree[_m2]/*.Freq*/ || - (tree[_n2]/*.Freq*/ === tree[_m2]/*.Freq*/ && depth[n] <= depth[m])); -} - -/* =========================================================================== - * Restore the heap property by moving down the tree starting at node k, - * exchanging a node with the smallest of its two sons if necessary, stopping - * when the heap property is re-established (each father smaller than its - * two sons). - */ -function pqdownheap(s, tree, k) -// deflate_state *s; -// ct_data *tree; /* the tree to restore */ -// int k; /* node to move down */ -{ - var v = s.heap[k]; - var j = k << 1; /* left son of k */ - while (j <= s.heap_len) { - /* Set j to the smallest of the two sons: */ - if (j < s.heap_len && - smaller(tree, s.heap[j + 1], s.heap[j], s.depth)) { - j++; - } - /* Exit if v is smaller than both sons */ - if (smaller(tree, v, s.heap[j], s.depth)) { break; } - - /* Exchange v with the smallest son */ - s.heap[k] = s.heap[j]; - k = j; - - /* And continue down the tree, setting j to the left son of k */ - j <<= 1; - } - s.heap[k] = v; -} - - -// inlined manually -// var SMALLEST = 1; - -/* =========================================================================== - * Send the block data compressed using the given Huffman trees - */ -function compress_block(s, ltree, dtree) -// deflate_state *s; -// const ct_data *ltree; /* literal tree */ -// const ct_data *dtree; /* distance tree */ -{ - var dist; /* distance of matched string */ - var lc; /* match length or unmatched char (if dist == 0) */ - var lx = 0; /* running index in l_buf */ - var code; /* the code to send */ - var extra; /* number of extra bits to send */ - - if (s.last_lit !== 0) { - do { - dist = (s.pending_buf[s.d_buf + lx * 2] << 8) | (s.pending_buf[s.d_buf + lx * 2 + 1]); - lc = s.pending_buf[s.l_buf + lx]; - lx++; - - if (dist === 0) { - send_code(s, lc, ltree); /* send a literal byte */ - //Tracecv(isgraph(lc), (stderr," '%c' ", lc)); - } else { - /* Here, lc is the match length - MIN_MATCH */ - code = _length_code[lc]; - send_code(s, code + LITERALS + 1, ltree); /* send the length code */ - extra = extra_lbits[code]; - if (extra !== 0) { - lc -= base_length[code]; - send_bits(s, lc, extra); /* send the extra length bits */ - } - dist--; /* dist is now the match distance - 1 */ - code = d_code(dist); - //Assert (code < D_CODES, "bad d_code"); - - send_code(s, code, dtree); /* send the distance code */ - extra = extra_dbits[code]; - if (extra !== 0) { - dist -= base_dist[code]; - send_bits(s, dist, extra); /* send the extra distance bits */ - } - } /* literal or match pair ? */ - - /* Check that the overlay between pending_buf and d_buf+l_buf is ok: */ - //Assert((uInt)(s->pending) < s->lit_bufsize + 2*lx, - // "pendingBuf overflow"); - - } while (lx < s.last_lit); - } - - send_code(s, END_BLOCK, ltree); -} - - -/* =========================================================================== - * Construct one Huffman tree and assigns the code bit strings and lengths. - * Update the total bit length for the current block. - * IN assertion: the field freq is set for all tree elements. - * OUT assertions: the fields len and code are set to the optimal bit length - * and corresponding code. The length opt_len is updated; static_len is - * also updated if stree is not null. The field max_code is set. - */ -function build_tree(s, desc) -// deflate_state *s; -// tree_desc *desc; /* the tree descriptor */ -{ - var tree = desc.dyn_tree; - var stree = desc.stat_desc.static_tree; - var has_stree = desc.stat_desc.has_stree; - var elems = desc.stat_desc.elems; - var n, m; /* iterate over heap elements */ - var max_code = -1; /* largest code with non zero frequency */ - var node; /* new node being created */ - - /* Construct the initial heap, with least frequent element in - * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1]. - * heap[0] is not used. - */ - s.heap_len = 0; - s.heap_max = HEAP_SIZE; - - for (n = 0; n < elems; n++) { - if (tree[n * 2]/*.Freq*/ !== 0) { - s.heap[++s.heap_len] = max_code = n; - s.depth[n] = 0; - - } else { - tree[n * 2 + 1]/*.Len*/ = 0; - } - } - - /* The pkzip format requires that at least one distance code exists, - * and that at least one bit should be sent even if there is only one - * possible code. So to avoid special checks later on we force at least - * two codes of non zero frequency. - */ - while (s.heap_len < 2) { - node = s.heap[++s.heap_len] = (max_code < 2 ? ++max_code : 0); - tree[node * 2]/*.Freq*/ = 1; - s.depth[node] = 0; - s.opt_len--; - - if (has_stree) { - s.static_len -= stree[node * 2 + 1]/*.Len*/; - } - /* node is 0 or 1 so it does not have extra bits */ - } - desc.max_code = max_code; - - /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree, - * establish sub-heaps of increasing lengths: - */ - for (n = (s.heap_len >> 1/*int /2*/); n >= 1; n--) { pqdownheap(s, tree, n); } - - /* Construct the Huffman tree by repeatedly combining the least two - * frequent nodes. - */ - node = elems; /* next internal node of the tree */ - do { - //pqremove(s, tree, n); /* n = node of least frequency */ - /*** pqremove ***/ - n = s.heap[1/*SMALLEST*/]; - s.heap[1/*SMALLEST*/] = s.heap[s.heap_len--]; - pqdownheap(s, tree, 1/*SMALLEST*/); - /***/ - - m = s.heap[1/*SMALLEST*/]; /* m = node of next least frequency */ - - s.heap[--s.heap_max] = n; /* keep the nodes sorted by frequency */ - s.heap[--s.heap_max] = m; - - /* Create a new node father of n and m */ - tree[node * 2]/*.Freq*/ = tree[n * 2]/*.Freq*/ + tree[m * 2]/*.Freq*/; - s.depth[node] = (s.depth[n] >= s.depth[m] ? s.depth[n] : s.depth[m]) + 1; - tree[n * 2 + 1]/*.Dad*/ = tree[m * 2 + 1]/*.Dad*/ = node; - - /* and insert the new node in the heap */ - s.heap[1/*SMALLEST*/] = node++; - pqdownheap(s, tree, 1/*SMALLEST*/); - - } while (s.heap_len >= 2); - - s.heap[--s.heap_max] = s.heap[1/*SMALLEST*/]; - - /* At this point, the fields freq and dad are set. We can now - * generate the bit lengths. - */ - gen_bitlen(s, desc); - - /* The field len is now set, we can generate the bit codes */ - gen_codes(tree, max_code, s.bl_count); -} - - -/* =========================================================================== - * Scan a literal or distance tree to determine the frequencies of the codes - * in the bit length tree. - */ -function scan_tree(s, tree, max_code) -// deflate_state *s; -// ct_data *tree; /* the tree to be scanned */ -// int max_code; /* and its largest code of non zero frequency */ -{ - var n; /* iterates over all tree elements */ - var prevlen = -1; /* last emitted length */ - var curlen; /* length of current code */ - - var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */ - - var count = 0; /* repeat count of the current code */ - var max_count = 7; /* max repeat count */ - var min_count = 4; /* min repeat count */ - - if (nextlen === 0) { - max_count = 138; - min_count = 3; - } - tree[(max_code + 1) * 2 + 1]/*.Len*/ = 0xffff; /* guard */ - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; - nextlen = tree[(n + 1) * 2 + 1]/*.Len*/; - - if (++count < max_count && curlen === nextlen) { - continue; - - } else if (count < min_count) { - s.bl_tree[curlen * 2]/*.Freq*/ += count; - - } else if (curlen !== 0) { - - if (curlen !== prevlen) { s.bl_tree[curlen * 2]/*.Freq*/++; } - s.bl_tree[REP_3_6 * 2]/*.Freq*/++; - - } else if (count <= 10) { - s.bl_tree[REPZ_3_10 * 2]/*.Freq*/++; - - } else { - s.bl_tree[REPZ_11_138 * 2]/*.Freq*/++; - } - - count = 0; - prevlen = curlen; - - if (nextlen === 0) { - max_count = 138; - min_count = 3; - - } else if (curlen === nextlen) { - max_count = 6; - min_count = 3; - - } else { - max_count = 7; - min_count = 4; - } - } -} - - -/* =========================================================================== - * Send a literal or distance tree in compressed form, using the codes in - * bl_tree. - */ -function send_tree(s, tree, max_code) -// deflate_state *s; -// ct_data *tree; /* the tree to be scanned */ -// int max_code; /* and its largest code of non zero frequency */ -{ - var n; /* iterates over all tree elements */ - var prevlen = -1; /* last emitted length */ - var curlen; /* length of current code */ - - var nextlen = tree[0 * 2 + 1]/*.Len*/; /* length of next code */ - - var count = 0; /* repeat count of the current code */ - var max_count = 7; /* max repeat count */ - var min_count = 4; /* min repeat count */ - - /* tree[max_code+1].Len = -1; */ /* guard already set */ - if (nextlen === 0) { - max_count = 138; - min_count = 3; - } - - for (n = 0; n <= max_code; n++) { - curlen = nextlen; - nextlen = tree[(n + 1) * 2 + 1]/*.Len*/; - - if (++count < max_count && curlen === nextlen) { - continue; - - } else if (count < min_count) { - do { send_code(s, curlen, s.bl_tree); } while (--count !== 0); - - } else if (curlen !== 0) { - if (curlen !== prevlen) { - send_code(s, curlen, s.bl_tree); - count--; - } - //Assert(count >= 3 && count <= 6, " 3_6?"); - send_code(s, REP_3_6, s.bl_tree); - send_bits(s, count - 3, 2); - - } else if (count <= 10) { - send_code(s, REPZ_3_10, s.bl_tree); - send_bits(s, count - 3, 3); - - } else { - send_code(s, REPZ_11_138, s.bl_tree); - send_bits(s, count - 11, 7); - } - - count = 0; - prevlen = curlen; - if (nextlen === 0) { - max_count = 138; - min_count = 3; - - } else if (curlen === nextlen) { - max_count = 6; - min_count = 3; - - } else { - max_count = 7; - min_count = 4; - } - } -} - - -/* =========================================================================== - * Construct the Huffman tree for the bit lengths and return the index in - * bl_order of the last bit length code to send. - */ -function build_bl_tree(s) { - var max_blindex; /* index of last bit length code of non zero freq */ - - /* Determine the bit length frequencies for literal and distance trees */ - scan_tree(s, s.dyn_ltree, s.l_desc.max_code); - scan_tree(s, s.dyn_dtree, s.d_desc.max_code); - - /* Build the bit length tree: */ - build_tree(s, s.bl_desc); - /* opt_len now includes the length of the tree representations, except - * the lengths of the bit lengths codes and the 5+5+4 bits for the counts. - */ - - /* Determine the number of bit length codes to send. The pkzip format - * requires that at least 4 bit length codes be sent. (appnote.txt says - * 3 but the actual value used is 4.) - */ - for (max_blindex = BL_CODES - 1; max_blindex >= 3; max_blindex--) { - if (s.bl_tree[bl_order[max_blindex] * 2 + 1]/*.Len*/ !== 0) { - break; - } - } - /* Update opt_len to include the bit length tree and counts */ - s.opt_len += 3 * (max_blindex + 1) + 5 + 5 + 4; - //Tracev((stderr, "\ndyn trees: dyn %ld, stat %ld", - // s->opt_len, s->static_len)); - - return max_blindex; -} - - -/* =========================================================================== - * Send the header for a block using dynamic Huffman trees: the counts, the - * lengths of the bit length codes, the literal tree and the distance tree. - * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4. - */ -function send_all_trees(s, lcodes, dcodes, blcodes) -// deflate_state *s; -// int lcodes, dcodes, blcodes; /* number of codes for each tree */ -{ - var rank; /* index in bl_order */ - - //Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes"); - //Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES, - // "too many codes"); - //Tracev((stderr, "\nbl counts: ")); - send_bits(s, lcodes - 257, 5); /* not +255 as stated in appnote.txt */ - send_bits(s, dcodes - 1, 5); - send_bits(s, blcodes - 4, 4); /* not -3 as stated in appnote.txt */ - for (rank = 0; rank < blcodes; rank++) { - //Tracev((stderr, "\nbl code %2d ", bl_order[rank])); - send_bits(s, s.bl_tree[bl_order[rank] * 2 + 1]/*.Len*/, 3); - } - //Tracev((stderr, "\nbl tree: sent %ld", s->bits_sent)); - - send_tree(s, s.dyn_ltree, lcodes - 1); /* literal tree */ - //Tracev((stderr, "\nlit tree: sent %ld", s->bits_sent)); - - send_tree(s, s.dyn_dtree, dcodes - 1); /* distance tree */ - //Tracev((stderr, "\ndist tree: sent %ld", s->bits_sent)); -} - - -/* =========================================================================== - * Check if the data type is TEXT or BINARY, using the following algorithm: - * - TEXT if the two conditions below are satisfied: - * a) There are no non-portable control characters belonging to the - * "black list" (0..6, 14..25, 28..31). - * b) There is at least one printable character belonging to the - * "white list" (9 {TAB}, 10 {LF}, 13 {CR}, 32..255). - * - BINARY otherwise. - * - The following partially-portable control characters form a - * "gray list" that is ignored in this detection algorithm: - * (7 {BEL}, 8 {BS}, 11 {VT}, 12 {FF}, 26 {SUB}, 27 {ESC}). - * IN assertion: the fields Freq of dyn_ltree are set. - */ -function detect_data_type(s) { - /* black_mask is the bit mask of black-listed bytes - * set bits 0..6, 14..25, and 28..31 - * 0xf3ffc07f = binary 11110011111111111100000001111111 - */ - var black_mask = 0xf3ffc07f; - var n; - - /* Check for non-textual ("black-listed") bytes. */ - for (n = 0; n <= 31; n++, black_mask >>>= 1) { - if ((black_mask & 1) && (s.dyn_ltree[n * 2]/*.Freq*/ !== 0)) { - return Z_BINARY; - } - } - - /* Check for textual ("white-listed") bytes. */ - if (s.dyn_ltree[9 * 2]/*.Freq*/ !== 0 || s.dyn_ltree[10 * 2]/*.Freq*/ !== 0 || - s.dyn_ltree[13 * 2]/*.Freq*/ !== 0) { - return Z_TEXT; - } - for (n = 32; n < LITERALS; n++) { - if (s.dyn_ltree[n * 2]/*.Freq*/ !== 0) { - return Z_TEXT; - } - } - - /* There are no "black-listed" or "white-listed" bytes: - * this stream either is empty or has tolerated ("gray-listed") bytes only. - */ - return Z_BINARY; -} - - -var static_init_done = false; - -/* =========================================================================== - * Initialize the tree data structures for a new zlib stream. - */ -function _tr_init(s) -{ - - if (!static_init_done) { - tr_static_init(); - static_init_done = true; - } - - s.l_desc = new TreeDesc(s.dyn_ltree, static_l_desc); - s.d_desc = new TreeDesc(s.dyn_dtree, static_d_desc); - s.bl_desc = new TreeDesc(s.bl_tree, static_bl_desc); - - s.bi_buf = 0; - s.bi_valid = 0; - - /* Initialize the first block of the first file: */ - init_block(s); -} - - -/* =========================================================================== - * Send a stored block - */ -function _tr_stored_block(s, buf, stored_len, last) -//DeflateState *s; -//charf *buf; /* input block */ -//ulg stored_len; /* length of input block */ -//int last; /* one if this is the last block for a file */ -{ - send_bits(s, (STORED_BLOCK << 1) + (last ? 1 : 0), 3); /* send block type */ - copy_block(s, buf, stored_len, true); /* with header */ -} - - -/* =========================================================================== - * Send one empty static block to give enough lookahead for inflate. - * This takes 10 bits, of which 7 may remain in the bit buffer. - */ -function _tr_align(s) { - send_bits(s, STATIC_TREES << 1, 3); - send_code(s, END_BLOCK, static_ltree); - bi_flush(s); -} - - -/* =========================================================================== - * Determine the best encoding for the current block: dynamic trees, static - * trees or store, and output the encoded block to the zip file. - */ -function _tr_flush_block(s, buf, stored_len, last) -//DeflateState *s; -//charf *buf; /* input block, or NULL if too old */ -//ulg stored_len; /* length of input block */ -//int last; /* one if this is the last block for a file */ -{ - var opt_lenb, static_lenb; /* opt_len and static_len in bytes */ - var max_blindex = 0; /* index of last bit length code of non zero freq */ - - /* Build the Huffman trees unless a stored block is forced */ - if (s.level > 0) { - - /* Check if the file is binary or text */ - if (s.strm.data_type === Z_UNKNOWN) { - s.strm.data_type = detect_data_type(s); - } - - /* Construct the literal and distance trees */ - build_tree(s, s.l_desc); - // Tracev((stderr, "\nlit data: dyn %ld, stat %ld", s->opt_len, - // s->static_len)); - - build_tree(s, s.d_desc); - // Tracev((stderr, "\ndist data: dyn %ld, stat %ld", s->opt_len, - // s->static_len)); - /* At this point, opt_len and static_len are the total bit lengths of - * the compressed block data, excluding the tree representations. - */ - - /* Build the bit length tree for the above two trees, and get the index - * in bl_order of the last bit length code to send. - */ - max_blindex = build_bl_tree(s); - - /* Determine the best encoding. Compute the block lengths in bytes. */ - opt_lenb = (s.opt_len + 3 + 7) >>> 3; - static_lenb = (s.static_len + 3 + 7) >>> 3; - - // Tracev((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u ", - // opt_lenb, s->opt_len, static_lenb, s->static_len, stored_len, - // s->last_lit)); - - if (static_lenb <= opt_lenb) { opt_lenb = static_lenb; } - - } else { - // Assert(buf != (char*)0, "lost buf"); - opt_lenb = static_lenb = stored_len + 5; /* force a stored block */ - } - - if ((stored_len + 4 <= opt_lenb) && (buf !== -1)) { - /* 4: two words for the lengths */ - - /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE. - * Otherwise we can't have processed more than WSIZE input bytes since - * the last block flush, because compression would have been - * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to - * transform a block into a stored block. - */ - _tr_stored_block(s, buf, stored_len, last); - - } else if (s.strategy === Z_FIXED || static_lenb === opt_lenb) { - - send_bits(s, (STATIC_TREES << 1) + (last ? 1 : 0), 3); - compress_block(s, static_ltree, static_dtree); - - } else { - send_bits(s, (DYN_TREES << 1) + (last ? 1 : 0), 3); - send_all_trees(s, s.l_desc.max_code + 1, s.d_desc.max_code + 1, max_blindex + 1); - compress_block(s, s.dyn_ltree, s.dyn_dtree); - } - // Assert (s->compressed_len == s->bits_sent, "bad compressed size"); - /* The above check is made mod 2^32, for files larger than 512 MB - * and uLong implemented on 32 bits. - */ - init_block(s); - - if (last) { - bi_windup(s); - } - // Tracev((stderr,"\ncomprlen %lu(%lu) ", s->compressed_len>>3, - // s->compressed_len-7*last)); -} - -/* =========================================================================== - * Save the match info and tally the frequency counts. Return true if - * the current block must be flushed. - */ -function _tr_tally(s, dist, lc) -// deflate_state *s; -// unsigned dist; /* distance of matched string */ -// unsigned lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */ -{ - //var out_length, in_length, dcode; - - s.pending_buf[s.d_buf + s.last_lit * 2] = (dist >>> 8) & 0xff; - s.pending_buf[s.d_buf + s.last_lit * 2 + 1] = dist & 0xff; - - s.pending_buf[s.l_buf + s.last_lit] = lc & 0xff; - s.last_lit++; - - if (dist === 0) { - /* lc is the unmatched char */ - s.dyn_ltree[lc * 2]/*.Freq*/++; - } else { - s.matches++; - /* Here, lc is the match length - MIN_MATCH */ - dist--; /* dist = match distance - 1 */ - //Assert((ush)dist < (ush)MAX_DIST(s) && - // (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) && - // (ush)d_code(dist) < (ush)D_CODES, "_tr_tally: bad match"); - - s.dyn_ltree[(_length_code[lc] + LITERALS + 1) * 2]/*.Freq*/++; - s.dyn_dtree[d_code(dist) * 2]/*.Freq*/++; - } - -// (!) This block is disabled in zlib defaults, -// don't enable it for binary compatibility - -//#ifdef TRUNCATE_BLOCK -// /* Try to guess if it is profitable to stop the current block here */ -// if ((s.last_lit & 0x1fff) === 0 && s.level > 2) { -// /* Compute an upper bound for the compressed length */ -// out_length = s.last_lit*8; -// in_length = s.strstart - s.block_start; -// -// for (dcode = 0; dcode < D_CODES; dcode++) { -// out_length += s.dyn_dtree[dcode*2]/*.Freq*/ * (5 + extra_dbits[dcode]); -// } -// out_length >>>= 3; -// //Tracev((stderr,"\nlast_lit %u, in %ld, out ~%ld(%ld%%) ", -// // s->last_lit, in_length, out_length, -// // 100L - out_length*100L/in_length)); -// if (s.matches < (s.last_lit>>1)/*int /2*/ && out_length < (in_length>>1)/*int /2*/) { -// return true; -// } -// } -//#endif - - return (s.last_lit === s.lit_bufsize - 1); - /* We avoid equality with lit_bufsize because of wraparound at 64K - * on 16 bit machines and because stored blocks are restricted to - * 64K-1 bytes. - */ -} - -exports._tr_init = _tr_init; -exports._tr_stored_block = _tr_stored_block; -exports._tr_flush_block = _tr_flush_block; -exports._tr_tally = _tr_tally; -exports._tr_align = _tr_align; - -},{"../utils/common":80}],90:[function(require,module,exports){ -'use strict'; - -// (C) 1995-2013 Jean-loup Gailly and Mark Adler -// (C) 2014-2017 Vitaly Puzrin and Andrey Tupitsin -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would be -// appreciated but is not required. -// 2. Altered source versions must be plainly marked as such, and must not be -// misrepresented as being the original software. -// 3. This notice may not be removed or altered from any source distribution. - -function ZStream() { - /* next input byte */ - this.input = null; // JS specific, because we have no pointers - this.next_in = 0; - /* number of bytes available at input */ - this.avail_in = 0; - /* total number of input bytes read so far */ - this.total_in = 0; - /* next output byte should be put there */ - this.output = null; // JS specific, because we have no pointers - this.next_out = 0; - /* remaining free space at output */ - this.avail_out = 0; - /* total number of bytes output so far */ - this.total_out = 0; - /* last error message, NULL if no error */ - this.msg = ''/*Z_NULL*/; - /* not visible by applications */ - this.state = null; - /* best guess about the data type: binary or text */ - this.data_type = 2/*Z_UNKNOWN*/; - /* adler32 value of the uncompressed data */ - this.adler = 0; -} - -module.exports = ZStream; - -},{}],91:[function(require,module,exports){ +},{"_process":117,"charm":5}],95:[function(require,module,exports){ (function (process){ // .dirname, .basename, and .extname methods are extracted from Node.js v8.11.1, // backported and transplited with Babel, with backwards-compat fixes @@ -55238,7 +56550,7 @@ var substr = 'ab'.substr(-1) === 'b' ; }).call(this,require('_process')) -},{"_process":114}],92:[function(require,module,exports){ +},{"_process":117}],96:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -55434,7 +56746,7 @@ exports.dataToBitMap = function(data, bitmapInfo) { }; }).call(this,require("buffer").Buffer) -},{"./interlace":102,"buffer":12}],93:[function(require,module,exports){ +},{"./interlace":106,"buffer":47}],97:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -55502,7 +56814,7 @@ module.exports = function(data, width, height, options) { }; }).call(this,require("buffer").Buffer) -},{"./constants":95,"buffer":12}],94:[function(require,module,exports){ +},{"./constants":99,"buffer":47}],98:[function(require,module,exports){ (function (process,Buffer){ 'use strict'; @@ -55715,7 +57027,7 @@ ChunkStream.prototype._process = function() { }; }).call(this,require('_process'),require("buffer").Buffer) -},{"_process":114,"buffer":12,"stream":128,"util":152}],95:[function(require,module,exports){ +},{"_process":117,"buffer":47,"stream":139,"util":150}],99:[function(require,module,exports){ 'use strict'; @@ -55751,7 +57063,7 @@ module.exports = { GAMMA_DIVISION: 100000 }; -},{}],96:[function(require,module,exports){ +},{}],100:[function(require,module,exports){ 'use strict'; var crcTable = []; @@ -55797,7 +57109,7 @@ CrcCalculator.crc32 = function(buf) { return crc ^ -1; }; -},{}],97:[function(require,module,exports){ +},{}],101:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -55984,7 +57296,7 @@ module.exports = function(pxData, width, height, options, bpp) { }; }).call(this,require("buffer").Buffer) -},{"./paeth-predictor":106,"buffer":12}],98:[function(require,module,exports){ +},{"./paeth-predictor":110,"buffer":47}],102:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56013,7 +57325,7 @@ var FilterAsync = module.exports = function(bitmapInfo) { util.inherits(FilterAsync, ChunkStream); }).call(this,require("buffer").Buffer) -},{"./chunkstream":94,"./filter-parse":100,"buffer":12,"util":152}],99:[function(require,module,exports){ +},{"./chunkstream":98,"./filter-parse":104,"buffer":47,"util":150}],103:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56040,7 +57352,7 @@ exports.process = function(inBuffer, bitmapInfo) { return Buffer.concat(outBuffers); }; }).call(this,require("buffer").Buffer) -},{"./filter-parse":100,"./sync-reader":112,"buffer":12}],100:[function(require,module,exports){ +},{"./filter-parse":104,"./sync-reader":116,"buffer":47}],104:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56215,7 +57527,7 @@ Filter.prototype._reverseFilterLine = function(rawData) { }; }).call(this,require("buffer").Buffer) -},{"./interlace":102,"./paeth-predictor":106,"buffer":12}],101:[function(require,module,exports){ +},{"./interlace":106,"./paeth-predictor":110,"buffer":47}],105:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56308,7 +57620,7 @@ module.exports = function(indata, imageData) { }; }).call(this,require("buffer").Buffer) -},{"buffer":12}],102:[function(require,module,exports){ +},{"buffer":47}],106:[function(require,module,exports){ 'use strict'; // Adam 7 @@ -56396,7 +57708,7 @@ exports.getInterlaceIterator = function(width) { return (outerX * 4) + (outerY * width * 4); }; }; -},{}],103:[function(require,module,exports){ +},{}],107:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56445,7 +57757,7 @@ PackerAsync.prototype.pack = function(data, width, height, gamma) { }; }).call(this,require("buffer").Buffer) -},{"./constants":95,"./packer":105,"buffer":12,"stream":128,"util":152}],104:[function(require,module,exports){ +},{"./constants":99,"./packer":109,"buffer":47,"stream":139,"util":150}],108:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56497,7 +57809,7 @@ module.exports = function(metaData, opt) { }; }).call(this,require("buffer").Buffer) -},{"./constants":95,"./packer":105,"buffer":12,"zlib":10}],105:[function(require,module,exports){ +},{"./constants":99,"./packer":109,"buffer":47,"zlib":45}],109:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56592,25 +57904,25 @@ Packer.prototype.packIEND = function() { return this._packChunk(constants.TYPE_IEND, null); }; }).call(this,require("buffer").Buffer) -},{"./bitpacker":93,"./constants":95,"./crc":96,"./filter-pack":97,"buffer":12,"zlib":10}],106:[function(require,module,exports){ -'use strict'; - -module.exports = function paethPredictor(left, above, upLeft) { - - var paeth = left + above - upLeft; - var pLeft = Math.abs(paeth - left); - var pAbove = Math.abs(paeth - above); - var pUpLeft = Math.abs(paeth - upLeft); - - if (pLeft <= pAbove && pLeft <= pUpLeft) { - return left; - } - if (pAbove <= pUpLeft) { - return above; - } - return upLeft; +},{"./bitpacker":97,"./constants":99,"./crc":100,"./filter-pack":101,"buffer":47,"zlib":45}],110:[function(require,module,exports){ +'use strict'; + +module.exports = function paethPredictor(left, above, upLeft) { + + var paeth = left + above - upLeft; + var pLeft = Math.abs(paeth - left); + var pAbove = Math.abs(paeth - above); + var pUpLeft = Math.abs(paeth - upLeft); + + if (pLeft <= pAbove && pLeft <= pUpLeft) { + return left; + } + if (pAbove <= pUpLeft) { + return above; + } + return upLeft; }; -},{}],107:[function(require,module,exports){ +},{}],111:[function(require,module,exports){ 'use strict'; var util = require('util'); @@ -56722,7 +58034,7 @@ ParserAsync.prototype._complete = function(filteredData) { this.emit('parsed', normalisedBitmapData); }; -},{"./bitmapper":92,"./chunkstream":94,"./filter-parse-async":98,"./format-normaliser":101,"./parser":109,"util":152,"zlib":10}],108:[function(require,module,exports){ +},{"./bitmapper":96,"./chunkstream":98,"./filter-parse-async":102,"./format-normaliser":105,"./parser":113,"util":150,"zlib":45}],112:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -56817,7 +58129,7 @@ module.exports = function(buffer, options) { }; }).call(this,require("buffer").Buffer) -},{"./bitmapper":92,"./filter-parse-sync":99,"./format-normaliser":101,"./parser":109,"./sync-reader":112,"buffer":12,"zlib":10}],109:[function(require,module,exports){ +},{"./bitmapper":96,"./filter-parse-sync":103,"./format-normaliser":105,"./parser":113,"./sync-reader":116,"buffer":47,"zlib":45}],113:[function(require,module,exports){ (function (Buffer){ 'use strict'; @@ -57111,7 +58423,7 @@ Parser.prototype._parseIEND = function(data) { }; }).call(this,require("buffer").Buffer) -},{"./constants":95,"./crc":96,"buffer":12}],110:[function(require,module,exports){ +},{"./constants":99,"./crc":100,"buffer":47}],114:[function(require,module,exports){ 'use strict'; @@ -57129,7 +58441,7 @@ exports.write = function(png) { return pack(png); }; -},{"./packer-sync":104,"./parser-sync":108}],111:[function(require,module,exports){ +},{"./packer-sync":108,"./parser-sync":112}],115:[function(require,module,exports){ (function (process,Buffer){ 'use strict'; @@ -57296,7 +58608,7 @@ PNG.prototype.adjustGamma = function() { }; }).call(this,require('_process'),require("buffer").Buffer) -},{"./packer-async":103,"./parser-async":107,"./png-sync":110,"_process":114,"buffer":12,"stream":128,"util":152}],112:[function(require,module,exports){ +},{"./packer-async":107,"./parser-async":111,"./png-sync":114,"_process":117,"buffer":47,"stream":139,"util":150}],116:[function(require,module,exports){ 'use strict'; var SyncReader = module.exports = function(buffer) { @@ -57349,55 +58661,7 @@ SyncReader.prototype.process = function() { }; -},{}],113:[function(require,module,exports){ -(function (process){ -'use strict'; - -if (!process.version || - process.version.indexOf('v0.') === 0 || - process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { - module.exports = { nextTick: nextTick }; -} else { - module.exports = process -} - -function nextTick(fn, arg1, arg2, arg3) { - if (typeof fn !== 'function') { - throw new TypeError('"callback" argument must be a function'); - } - var len = arguments.length; - var args, i; - switch (len) { - case 0: - case 1: - return process.nextTick(fn); - case 2: - return process.nextTick(function afterTickOne() { - fn.call(null, arg1); - }); - case 3: - return process.nextTick(function afterTickTwo() { - fn.call(null, arg1, arg2); - }); - case 4: - return process.nextTick(function afterTickThree() { - fn.call(null, arg1, arg2, arg3); - }); - default: - args = new Array(len - 1); - i = 0; - while (i < args.length) { - args[i++] = arguments[i]; - } - return process.nextTick(function afterTick() { - fn.apply(null, args); - }); - } -} - - -}).call(this,require('_process')) -},{"_process":114}],114:[function(require,module,exports){ +},{}],117:[function(require,module,exports){ // shim for using process in browser var process = module.exports = {}; @@ -57583,2946 +58847,10 @@ process.chdir = function (dir) { }; process.umask = function() { return 0; }; -},{}],115:[function(require,module,exports){ -arguments[4][38][0].apply(exports,arguments) -},{"./_stream_readable":117,"./_stream_writable":119,"_process":114,"core-util-is":16,"dup":38,"inherits":55}],116:[function(require,module,exports){ -arguments[4][39][0].apply(exports,arguments) -},{"./_stream_transform":118,"core-util-is":16,"dup":39,"inherits":55}],117:[function(require,module,exports){ -(function (process){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -module.exports = Readable; - -/**/ -var isArray = require('isarray'); -/**/ - - -/**/ -var Buffer = require('buffer').Buffer; -/**/ - -Readable.ReadableState = ReadableState; - -var EE = require('events').EventEmitter; - -/**/ -if (!EE.listenerCount) EE.listenerCount = function(emitter, type) { - return emitter.listeners(type).length; -}; -/**/ - -var Stream = require('stream'); - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -var StringDecoder; - -util.inherits(Readable, Stream); - -function ReadableState(options, stream) { - options = options || {}; - - // the point at which it stops calling _read() to fill the buffer - // Note: 0 is a valid value, means "don't call _read preemptively ever" - var hwm = options.highWaterMark; - this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024; - - // cast to ints. - this.highWaterMark = ~~this.highWaterMark; - - this.buffer = []; - this.length = 0; - this.pipes = null; - this.pipesCount = 0; - this.flowing = false; - this.ended = false; - this.endEmitted = false; - this.reading = false; - - // In streams that never have any data, and do push(null) right away, - // the consumer can miss the 'end' event if they do some I/O before - // consuming the stream. So, we don't emit('end') until some reading - // happens. - this.calledRead = false; - - // a flag to be able to tell if the onwrite cb is called immediately, - // or on a later tick. We set this to true at first, becuase any - // actions that shouldn't happen until "later" should generally also - // not happen before the first write call. - this.sync = true; - - // whenever we return null, then we set a flag to say - // that we're awaiting a 'readable' event emission. - this.needReadable = false; - this.emittedReadable = false; - this.readableListening = false; - - - // object stream flag. Used to make read(n) ignore n and to - // make all the buffer merging and length checks go away - this.objectMode = !!options.objectMode; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // when piping, we only care about 'readable' events that happen - // after read()ing all the bytes and not getting any pushback. - this.ranOut = false; - - // the number of writers that are awaiting a drain event in .pipe()s - this.awaitDrain = 0; - - // if true, a maybeReadMore has been scheduled - this.readingMore = false; - - this.decoder = null; - this.encoding = null; - if (options.encoding) { - if (!StringDecoder) - StringDecoder = require('string_decoder/').StringDecoder; - this.decoder = new StringDecoder(options.encoding); - this.encoding = options.encoding; - } -} - -function Readable(options) { - if (!(this instanceof Readable)) - return new Readable(options); - - this._readableState = new ReadableState(options, this); - - // legacy - this.readable = true; - - Stream.call(this); -} - -// Manually shove something into the read() buffer. -// This returns true if the highWaterMark has not been hit yet, -// similar to how Writable.write() returns true if you should -// write() some more. -Readable.prototype.push = function(chunk, encoding) { - var state = this._readableState; - - if (typeof chunk === 'string' && !state.objectMode) { - encoding = encoding || state.defaultEncoding; - if (encoding !== state.encoding) { - chunk = new Buffer(chunk, encoding); - encoding = ''; - } - } - - return readableAddChunk(this, state, chunk, encoding, false); -}; - -// Unshift should *always* be something directly out of read() -Readable.prototype.unshift = function(chunk) { - var state = this._readableState; - return readableAddChunk(this, state, chunk, '', true); -}; - -function readableAddChunk(stream, state, chunk, encoding, addToFront) { - var er = chunkInvalid(state, chunk); - if (er) { - stream.emit('error', er); - } else if (chunk === null || chunk === undefined) { - state.reading = false; - if (!state.ended) - onEofChunk(stream, state); - } else if (state.objectMode || chunk && chunk.length > 0) { - if (state.ended && !addToFront) { - var e = new Error('stream.push() after EOF'); - stream.emit('error', e); - } else if (state.endEmitted && addToFront) { - var e = new Error('stream.unshift() after end event'); - stream.emit('error', e); - } else { - if (state.decoder && !addToFront && !encoding) - chunk = state.decoder.write(chunk); - - // update the buffer info. - state.length += state.objectMode ? 1 : chunk.length; - if (addToFront) { - state.buffer.unshift(chunk); - } else { - state.reading = false; - state.buffer.push(chunk); - } - - if (state.needReadable) - emitReadable(stream); - - maybeReadMore(stream, state); - } - } else if (!addToFront) { - state.reading = false; - } - - return needMoreData(state); -} - - - -// if it's past the high water mark, we can push in some more. -// Also, if we have no data yet, we can stand some -// more bytes. This is to work around cases where hwm=0, -// such as the repl. Also, if the push() triggered a -// readable event, and the user called read(largeNumber) such that -// needReadable was set, then we ought to push more, so that another -// 'readable' event will be triggered. -function needMoreData(state) { - return !state.ended && - (state.needReadable || - state.length < state.highWaterMark || - state.length === 0); -} - -// backwards compatibility. -Readable.prototype.setEncoding = function(enc) { - if (!StringDecoder) - StringDecoder = require('string_decoder/').StringDecoder; - this._readableState.decoder = new StringDecoder(enc); - this._readableState.encoding = enc; -}; - -// Don't raise the hwm > 128MB -var MAX_HWM = 0x800000; -function roundUpToNextPowerOf2(n) { - if (n >= MAX_HWM) { - n = MAX_HWM; - } else { - // Get the next highest power of 2 - n--; - for (var p = 1; p < 32; p <<= 1) n |= n >> p; - n++; - } - return n; -} - -function howMuchToRead(n, state) { - if (state.length === 0 && state.ended) - return 0; - - if (state.objectMode) - return n === 0 ? 0 : 1; - - if (n === null || isNaN(n)) { - // only flow one buffer at a time - if (state.flowing && state.buffer.length) - return state.buffer[0].length; - else - return state.length; - } - - if (n <= 0) - return 0; - - // If we're asking for more than the target buffer level, - // then raise the water mark. Bump up to the next highest - // power of 2, to prevent increasing it excessively in tiny - // amounts. - if (n > state.highWaterMark) - state.highWaterMark = roundUpToNextPowerOf2(n); - - // don't have that much. return null, unless we've ended. - if (n > state.length) { - if (!state.ended) { - state.needReadable = true; - return 0; - } else - return state.length; - } - - return n; -} - -// you can override either this method, or the async _read(n) below. -Readable.prototype.read = function(n) { - var state = this._readableState; - state.calledRead = true; - var nOrig = n; - var ret; - - if (typeof n !== 'number' || n > 0) - state.emittedReadable = false; - - // if we're doing read(0) to trigger a readable event, but we - // already have a bunch of data in the buffer, then just trigger - // the 'readable' event and move on. - if (n === 0 && - state.needReadable && - (state.length >= state.highWaterMark || state.ended)) { - emitReadable(this); - return null; - } - - n = howMuchToRead(n, state); - - // if we've ended, and we're now clear, then finish it up. - if (n === 0 && state.ended) { - ret = null; - - // In cases where the decoder did not receive enough data - // to produce a full chunk, then immediately received an - // EOF, state.buffer will contain [, ]. - // howMuchToRead will see this and coerce the amount to - // read to zero (because it's looking at the length of the - // first in state.buffer), and we'll end up here. - // - // This can only happen via state.decoder -- no other venue - // exists for pushing a zero-length chunk into state.buffer - // and triggering this behavior. In this case, we return our - // remaining data and end the stream, if appropriate. - if (state.length > 0 && state.decoder) { - ret = fromList(n, state); - state.length -= ret.length; - } - - if (state.length === 0) - endReadable(this); - - return ret; - } - - // All the actual chunk generation logic needs to be - // *below* the call to _read. The reason is that in certain - // synthetic stream cases, such as passthrough streams, _read - // may be a completely synchronous operation which may change - // the state of the read buffer, providing enough data when - // before there was *not* enough. - // - // So, the steps are: - // 1. Figure out what the state of things will be after we do - // a read from the buffer. - // - // 2. If that resulting state will trigger a _read, then call _read. - // Note that this may be asynchronous, or synchronous. Yes, it is - // deeply ugly to write APIs this way, but that still doesn't mean - // that the Readable class should behave improperly, as streams are - // designed to be sync/async agnostic. - // Take note if the _read call is sync or async (ie, if the read call - // has returned yet), so that we know whether or not it's safe to emit - // 'readable' etc. - // - // 3. Actually pull the requested chunks out of the buffer and return. - - // if we need a readable event, then we need to do some reading. - var doRead = state.needReadable; - - // if we currently have less than the highWaterMark, then also read some - if (state.length - n <= state.highWaterMark) - doRead = true; - - // however, if we've ended, then there's no point, and if we're already - // reading, then it's unnecessary. - if (state.ended || state.reading) - doRead = false; - - if (doRead) { - state.reading = true; - state.sync = true; - // if the length is currently zero, then we *need* a readable event. - if (state.length === 0) - state.needReadable = true; - // call internal read method - this._read(state.highWaterMark); - state.sync = false; - } - - // If _read called its callback synchronously, then `reading` - // will be false, and we need to re-evaluate how much data we - // can return to the user. - if (doRead && !state.reading) - n = howMuchToRead(nOrig, state); - - if (n > 0) - ret = fromList(n, state); - else - ret = null; - - if (ret === null) { - state.needReadable = true; - n = 0; - } - - state.length -= n; - - // If we have nothing in the buffer, then we want to know - // as soon as we *do* get something into the buffer. - if (state.length === 0 && !state.ended) - state.needReadable = true; - - // If we happened to read() exactly the remaining amount in the - // buffer, and the EOF has been seen at this point, then make sure - // that we emit 'end' on the very next tick. - if (state.ended && !state.endEmitted && state.length === 0) - endReadable(this); - - return ret; -}; - -function chunkInvalid(state, chunk) { - var er = null; - if (!Buffer.isBuffer(chunk) && - 'string' !== typeof chunk && - chunk !== null && - chunk !== undefined && - !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); - } - return er; -} - - -function onEofChunk(stream, state) { - if (state.decoder && !state.ended) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) { - state.buffer.push(chunk); - state.length += state.objectMode ? 1 : chunk.length; - } - } - state.ended = true; - - // if we've ended and we have some data left, then emit - // 'readable' now to make sure it gets picked up. - if (state.length > 0) - emitReadable(stream); - else - endReadable(stream); -} - -// Don't emit readable right away in sync mode, because this can trigger -// another read() call => stack overflow. This way, it might trigger -// a nextTick recursion warning, but that's not so bad. -function emitReadable(stream) { - var state = stream._readableState; - state.needReadable = false; - if (state.emittedReadable) - return; - - state.emittedReadable = true; - if (state.sync) - process.nextTick(function() { - emitReadable_(stream); - }); - else - emitReadable_(stream); -} - -function emitReadable_(stream) { - stream.emit('readable'); -} - - -// at this point, the user has presumably seen the 'readable' event, -// and called read() to consume some data. that may have triggered -// in turn another _read(n) call, in which case reading = true if -// it's in progress. -// However, if we're not ended, or reading, and the length < hwm, -// then go ahead and try to read some more preemptively. -function maybeReadMore(stream, state) { - if (!state.readingMore) { - state.readingMore = true; - process.nextTick(function() { - maybeReadMore_(stream, state); - }); - } -} - -function maybeReadMore_(stream, state) { - var len = state.length; - while (!state.reading && !state.flowing && !state.ended && - state.length < state.highWaterMark) { - stream.read(0); - if (len === state.length) - // didn't get any data, stop spinning. - break; - else - len = state.length; - } - state.readingMore = false; -} - -// abstract method. to be overridden in specific implementation classes. -// call cb(er, data) where data is <= n in length. -// for virtual (non-string, non-buffer) streams, "length" is somewhat -// arbitrary, and perhaps not very meaningful. -Readable.prototype._read = function(n) { - this.emit('error', new Error('not implemented')); -}; - -Readable.prototype.pipe = function(dest, pipeOpts) { - var src = this; - var state = this._readableState; - - switch (state.pipesCount) { - case 0: - state.pipes = dest; - break; - case 1: - state.pipes = [state.pipes, dest]; - break; - default: - state.pipes.push(dest); - break; - } - state.pipesCount += 1; - - var doEnd = (!pipeOpts || pipeOpts.end !== false) && - dest !== process.stdout && - dest !== process.stderr; - - var endFn = doEnd ? onend : cleanup; - if (state.endEmitted) - process.nextTick(endFn); - else - src.once('end', endFn); - - dest.on('unpipe', onunpipe); - function onunpipe(readable) { - if (readable !== src) return; - cleanup(); - } - - function onend() { - dest.end(); - } - - // when the dest drains, it reduces the awaitDrain counter - // on the source. This would be more elegant with a .once() - // handler in flow(), but adding and removing repeatedly is - // too slow. - var ondrain = pipeOnDrain(src); - dest.on('drain', ondrain); - - function cleanup() { - // cleanup event handlers once the pipe is broken - dest.removeListener('close', onclose); - dest.removeListener('finish', onfinish); - dest.removeListener('drain', ondrain); - dest.removeListener('error', onerror); - dest.removeListener('unpipe', onunpipe); - src.removeListener('end', onend); - src.removeListener('end', cleanup); - - // if the reader is waiting for a drain event from this - // specific writer, then it would cause it to never start - // flowing again. - // So, if this is awaiting a drain, then we just call it now. - // If we don't know, then assume that we are waiting for one. - if (!dest._writableState || dest._writableState.needDrain) - ondrain(); - } - - // if the dest has an error, then stop piping into it. - // however, don't suppress the throwing behavior for this. - function onerror(er) { - unpipe(); - dest.removeListener('error', onerror); - if (EE.listenerCount(dest, 'error') === 0) - dest.emit('error', er); - } - // This is a brutally ugly hack to make sure that our error handler - // is attached before any userland ones. NEVER DO THIS. - if (!dest._events || !dest._events.error) - dest.on('error', onerror); - else if (isArray(dest._events.error)) - dest._events.error.unshift(onerror); - else - dest._events.error = [onerror, dest._events.error]; - - - - // Both close and finish should trigger unpipe, but only once. - function onclose() { - dest.removeListener('finish', onfinish); - unpipe(); - } - dest.once('close', onclose); - function onfinish() { - dest.removeListener('close', onclose); - unpipe(); - } - dest.once('finish', onfinish); - - function unpipe() { - src.unpipe(dest); - } - - // tell the dest that it's being piped to - dest.emit('pipe', src); - - // start the flow if it hasn't been started already. - if (!state.flowing) { - // the handler that waits for readable events after all - // the data gets sucked out in flow. - // This would be easier to follow with a .once() handler - // in flow(), but that is too slow. - this.on('readable', pipeOnReadable); - - state.flowing = true; - process.nextTick(function() { - flow(src); - }); - } - - return dest; -}; - -function pipeOnDrain(src) { - return function() { - var dest = this; - var state = src._readableState; - state.awaitDrain--; - if (state.awaitDrain === 0) - flow(src); - }; -} - -function flow(src) { - var state = src._readableState; - var chunk; - state.awaitDrain = 0; - - function write(dest, i, list) { - var written = dest.write(chunk); - if (false === written) { - state.awaitDrain++; - } - } - - while (state.pipesCount && null !== (chunk = src.read())) { - - if (state.pipesCount === 1) - write(state.pipes, 0, null); - else - forEach(state.pipes, write); - - src.emit('data', chunk); - - // if anyone needs a drain, then we have to wait for that. - if (state.awaitDrain > 0) - return; - } - - // if every destination was unpiped, either before entering this - // function, or in the while loop, then stop flowing. - // - // NB: This is a pretty rare edge case. - if (state.pipesCount === 0) { - state.flowing = false; - - // if there were data event listeners added, then switch to old mode. - if (EE.listenerCount(src, 'data') > 0) - emitDataEvents(src); - return; - } - - // at this point, no one needed a drain, so we just ran out of data - // on the next readable event, start it over again. - state.ranOut = true; -} - -function pipeOnReadable() { - if (this._readableState.ranOut) { - this._readableState.ranOut = false; - flow(this); - } -} - - -Readable.prototype.unpipe = function(dest) { - var state = this._readableState; - - // if we're not piping anywhere, then do nothing. - if (state.pipesCount === 0) - return this; - - // just one destination. most common case. - if (state.pipesCount === 1) { - // passed in one, but it's not the right one. - if (dest && dest !== state.pipes) - return this; - - if (!dest) - dest = state.pipes; - - // got a match. - state.pipes = null; - state.pipesCount = 0; - this.removeListener('readable', pipeOnReadable); - state.flowing = false; - if (dest) - dest.emit('unpipe', this); - return this; - } - - // slow case. multiple pipe destinations. - - if (!dest) { - // remove all. - var dests = state.pipes; - var len = state.pipesCount; - state.pipes = null; - state.pipesCount = 0; - this.removeListener('readable', pipeOnReadable); - state.flowing = false; - - for (var i = 0; i < len; i++) - dests[i].emit('unpipe', this); - return this; - } - - // try to find the right one. - var i = indexOf(state.pipes, dest); - if (i === -1) - return this; - - state.pipes.splice(i, 1); - state.pipesCount -= 1; - if (state.pipesCount === 1) - state.pipes = state.pipes[0]; - - dest.emit('unpipe', this); - - return this; -}; - -// set up data events if they are asked for -// Ensure readable listeners eventually get something -Readable.prototype.on = function(ev, fn) { - var res = Stream.prototype.on.call(this, ev, fn); - - if (ev === 'data' && !this._readableState.flowing) - emitDataEvents(this); - - if (ev === 'readable' && this.readable) { - var state = this._readableState; - if (!state.readableListening) { - state.readableListening = true; - state.emittedReadable = false; - state.needReadable = true; - if (!state.reading) { - this.read(0); - } else if (state.length) { - emitReadable(this, state); - } - } - } - - return res; -}; -Readable.prototype.addListener = Readable.prototype.on; - -// pause() and resume() are remnants of the legacy readable stream API -// If the user uses them, then switch into old mode. -Readable.prototype.resume = function() { - emitDataEvents(this); - this.read(0); - this.emit('resume'); -}; - -Readable.prototype.pause = function() { - emitDataEvents(this, true); - this.emit('pause'); -}; - -function emitDataEvents(stream, startPaused) { - var state = stream._readableState; - - if (state.flowing) { - // https://github.com/isaacs/readable-stream/issues/16 - throw new Error('Cannot switch to old mode now.'); - } - - var paused = startPaused || false; - var readable = false; - - // convert to an old-style stream. - stream.readable = true; - stream.pipe = Stream.prototype.pipe; - stream.on = stream.addListener = Stream.prototype.on; - - stream.on('readable', function() { - readable = true; - - var c; - while (!paused && (null !== (c = stream.read()))) - stream.emit('data', c); - - if (c === null) { - readable = false; - stream._readableState.needReadable = true; - } - }); - - stream.pause = function() { - paused = true; - this.emit('pause'); - }; - - stream.resume = function() { - paused = false; - if (readable) - process.nextTick(function() { - stream.emit('readable'); - }); - else - this.read(0); - this.emit('resume'); - }; - - // now make it start, just in case it hadn't already. - stream.emit('readable'); -} - -// wrap an old-style stream as the async data source. -// This is *not* part of the readable stream interface. -// It is an ugly unfortunate mess of history. -Readable.prototype.wrap = function(stream) { - var state = this._readableState; - var paused = false; - - var self = this; - stream.on('end', function() { - if (state.decoder && !state.ended) { - var chunk = state.decoder.end(); - if (chunk && chunk.length) - self.push(chunk); - } - - self.push(null); - }); - - stream.on('data', function(chunk) { - if (state.decoder) - chunk = state.decoder.write(chunk); - - // don't skip over falsy values in objectMode - //if (state.objectMode && util.isNullOrUndefined(chunk)) - if (state.objectMode && (chunk === null || chunk === undefined)) - return; - else if (!state.objectMode && (!chunk || !chunk.length)) - return; - - var ret = self.push(chunk); - if (!ret) { - paused = true; - stream.pause(); - } - }); - - // proxy all the other methods. - // important when wrapping filters and duplexes. - for (var i in stream) { - if (typeof stream[i] === 'function' && - typeof this[i] === 'undefined') { - this[i] = function(method) { return function() { - return stream[method].apply(stream, arguments); - }}(i); - } - } - - // proxy certain important events. - var events = ['error', 'close', 'destroy', 'pause', 'resume']; - forEach(events, function(ev) { - stream.on(ev, self.emit.bind(self, ev)); - }); - - // when we try to consume some more bytes, simply unpause the - // underlying stream. - self._read = function(n) { - if (paused) { - paused = false; - stream.resume(); - } - }; - - return self; -}; - - - -// exposed for testing purposes only. -Readable._fromList = fromList; - -// Pluck off n bytes from an array of buffers. -// Length is the combined lengths of all the buffers in the list. -function fromList(n, state) { - var list = state.buffer; - var length = state.length; - var stringMode = !!state.decoder; - var objectMode = !!state.objectMode; - var ret; - - // nothing in the list, definitely empty. - if (list.length === 0) - return null; - - if (length === 0) - ret = null; - else if (objectMode) - ret = list.shift(); - else if (!n || n >= length) { - // read it all, truncate the array. - if (stringMode) - ret = list.join(''); - else - ret = Buffer.concat(list, length); - list.length = 0; - } else { - // read just some of it. - if (n < list[0].length) { - // just take a part of the first list item. - // slice is the same for buffers and strings. - var buf = list[0]; - ret = buf.slice(0, n); - list[0] = buf.slice(n); - } else if (n === list[0].length) { - // first list is a perfect match - ret = list.shift(); - } else { - // complex case. - // we have enough to cover it, but it spans past the first buffer. - if (stringMode) - ret = ''; - else - ret = new Buffer(n); - - var c = 0; - for (var i = 0, l = list.length; i < l && c < n; i++) { - var buf = list[0]; - var cpy = Math.min(n - c, buf.length); - - if (stringMode) - ret += buf.slice(0, cpy); - else - buf.copy(ret, c, 0, cpy); - - if (cpy < buf.length) - list[0] = buf.slice(cpy); - else - list.shift(); - - c += cpy; - } - } - } - - return ret; -} - -function endReadable(stream) { - var state = stream._readableState; - - // If we get here before consuming all the bytes, then that is a - // bug in node. Should never happen. - if (state.length > 0) - throw new Error('endReadable called on non-empty stream'); - - if (!state.endEmitted && state.calledRead) { - state.ended = true; - process.nextTick(function() { - // Check that we didn't get one last unshift. - if (!state.endEmitted && state.length === 0) { - state.endEmitted = true; - stream.readable = false; - stream.emit('end'); - } - }); - } -} - -function forEach (xs, f) { - for (var i = 0, l = xs.length; i < l; i++) { - f(xs[i], i); - } -} - -function indexOf (xs, x) { - for (var i = 0, l = xs.length; i < l; i++) { - if (xs[i] === x) return i; - } - return -1; -} - -}).call(this,require('_process')) -},{"_process":114,"buffer":12,"core-util-is":16,"events":23,"inherits":55,"isarray":120,"stream":128,"string_decoder/":121}],118:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - - -// a transform stream is a readable/writable stream where you do -// something with the data. Sometimes it's called a "filter", -// but that's not a great name for it, since that implies a thing where -// some bits pass through, and others are simply ignored. (That would -// be a valid example of a transform, of course.) -// -// While the output is causally related to the input, it's not a -// necessarily symmetric or synchronous transformation. For example, -// a zlib stream might take multiple plain-text writes(), and then -// emit a single compressed chunk some time in the future. -// -// Here's how this works: -// -// The Transform stream has all the aspects of the readable and writable -// stream classes. When you write(chunk), that calls _write(chunk,cb) -// internally, and returns false if there's a lot of pending writes -// buffered up. When you call read(), that calls _read(n) until -// there's enough pending readable data buffered up. -// -// In a transform stream, the written data is placed in a buffer. When -// _read(n) is called, it transforms the queued up data, calling the -// buffered _write cb's as it consumes chunks. If consuming a single -// written chunk would result in multiple output chunks, then the first -// outputted bit calls the readcb, and subsequent chunks just go into -// the read buffer, and will cause it to emit 'readable' if necessary. -// -// This way, back-pressure is actually determined by the reading side, -// since _read has to be called to start processing a new chunk. However, -// a pathological inflate type of transform can cause excessive buffering -// here. For example, imagine a stream where every byte of input is -// interpreted as an integer from 0-255, and then results in that many -// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in -// 1kb of data being output. In this case, you could write a very small -// amount of input, and end up with a very large amount of output. In -// such a pathological inflating mechanism, there'd be no way to tell -// the system to stop doing the transform. A single 4MB write could -// cause the system to run out of memory. -// -// However, even in such a pathological case, only a single written chunk -// would be consumed, and then the rest would wait (un-transformed) until -// the results of the previous transformed chunk were consumed. - -module.exports = Transform; - -var Duplex = require('./_stream_duplex'); - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -util.inherits(Transform, Duplex); - - -function TransformState(options, stream) { - this.afterTransform = function(er, data) { - return afterTransform(stream, er, data); - }; - - this.needTransform = false; - this.transforming = false; - this.writecb = null; - this.writechunk = null; -} - -function afterTransform(stream, er, data) { - var ts = stream._transformState; - ts.transforming = false; - - var cb = ts.writecb; - - if (!cb) - return stream.emit('error', new Error('no writecb in Transform class')); - - ts.writechunk = null; - ts.writecb = null; - - if (data !== null && data !== undefined) - stream.push(data); - - if (cb) - cb(er); - - var rs = stream._readableState; - rs.reading = false; - if (rs.needReadable || rs.length < rs.highWaterMark) { - stream._read(rs.highWaterMark); - } -} - - -function Transform(options) { - if (!(this instanceof Transform)) - return new Transform(options); - - Duplex.call(this, options); - - var ts = this._transformState = new TransformState(options, this); - - // when the writable side finishes, then flush out anything remaining. - var stream = this; - - // start out asking for a readable event once data is transformed. - this._readableState.needReadable = true; - - // we have implemented the _read method, and done the other things - // that Readable wants before the first _read call, so unset the - // sync guard flag. - this._readableState.sync = false; - - this.once('finish', function() { - if ('function' === typeof this._flush) - this._flush(function(er) { - done(stream, er); - }); - else - done(stream); - }); -} - -Transform.prototype.push = function(chunk, encoding) { - this._transformState.needTransform = false; - return Duplex.prototype.push.call(this, chunk, encoding); -}; - -// This is the part where you do stuff! -// override this function in implementation classes. -// 'chunk' is an input chunk. -// -// Call `push(newChunk)` to pass along transformed output -// to the readable side. You may call 'push' zero or more times. -// -// Call `cb(err)` when you are done with this chunk. If you pass -// an error, then that'll put the hurt on the whole operation. If you -// never call cb(), then you'll never get another chunk. -Transform.prototype._transform = function(chunk, encoding, cb) { - throw new Error('not implemented'); -}; - -Transform.prototype._write = function(chunk, encoding, cb) { - var ts = this._transformState; - ts.writecb = cb; - ts.writechunk = chunk; - ts.writeencoding = encoding; - if (!ts.transforming) { - var rs = this._readableState; - if (ts.needTransform || - rs.needReadable || - rs.length < rs.highWaterMark) - this._read(rs.highWaterMark); - } -}; - -// Doesn't matter what the args are here. -// _transform does all the work. -// That we got here means that the readable side wants more data. -Transform.prototype._read = function(n) { - var ts = this._transformState; - - if (ts.writechunk !== null && ts.writecb && !ts.transforming) { - ts.transforming = true; - this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform); - } else { - // mark that we need a transform, so that any data that comes in - // will get processed, now that we've asked for it. - ts.needTransform = true; - } -}; - - -function done(stream, er) { - if (er) - return stream.emit('error', er); - - // if there's nothing in the write buffer, then that means - // that nothing more will ever be provided - var ws = stream._writableState; - var rs = stream._readableState; - var ts = stream._transformState; - - if (ws.length) - throw new Error('calling transform done when ws.length != 0'); - - if (ts.transforming) - throw new Error('calling transform done when still transforming'); - - return stream.push(null); -} - -},{"./_stream_duplex":115,"core-util-is":16,"inherits":55}],119:[function(require,module,exports){ -(function (process){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -// A bit simpler than readable streams. -// Implement an async ._write(chunk, cb), and it'll handle all -// the drain event emission and buffering. - -module.exports = Writable; - -/**/ -var Buffer = require('buffer').Buffer; -/**/ - -Writable.WritableState = WritableState; - - -/**/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/**/ - -var Stream = require('stream'); - -util.inherits(Writable, Stream); - -function WriteReq(chunk, encoding, cb) { - this.chunk = chunk; - this.encoding = encoding; - this.callback = cb; -} - -function WritableState(options, stream) { - options = options || {}; - - // the point at which write() starts returning false - // Note: 0 is a valid value, means that we always return false if - // the entire buffer is not flushed immediately on write() - var hwm = options.highWaterMark; - this.highWaterMark = (hwm || hwm === 0) ? hwm : 16 * 1024; - - // object stream flag to indicate whether or not this stream - // contains buffers or objects. - this.objectMode = !!options.objectMode; - - // cast to ints. - this.highWaterMark = ~~this.highWaterMark; - - this.needDrain = false; - // at the start of calling end() - this.ending = false; - // when end() has been called, and returned - this.ended = false; - // when 'finish' is emitted - this.finished = false; - - // should we decode strings into buffers before passing to _write? - // this is here so that some node-core streams can optimize string - // handling at a lower level. - var noDecode = options.decodeStrings === false; - this.decodeStrings = !noDecode; - - // Crypto is kind of old and crusty. Historically, its default string - // encoding is 'binary' so we have to make this configurable. - // Everything else in the universe uses 'utf8', though. - this.defaultEncoding = options.defaultEncoding || 'utf8'; - - // not an actual buffer we keep track of, but a measurement - // of how much we're waiting to get pushed to some underlying - // socket or file. - this.length = 0; - - // a flag to see when we're in the middle of a write. - this.writing = false; - - // a flag to be able to tell if the onwrite cb is called immediately, - // or on a later tick. We set this to true at first, becuase any - // actions that shouldn't happen until "later" should generally also - // not happen before the first write call. - this.sync = true; - - // a flag to know if we're processing previously buffered items, which - // may call the _write() callback in the same tick, so that we don't - // end up in an overlapped onwrite situation. - this.bufferProcessing = false; - - // the callback that's passed to _write(chunk,cb) - this.onwrite = function(er) { - onwrite(stream, er); - }; - - // the callback that the user supplies to write(chunk,encoding,cb) - this.writecb = null; - - // the amount that is being written when _write is called. - this.writelen = 0; - - this.buffer = []; - - // True if the error was already emitted and should not be thrown again - this.errorEmitted = false; -} - -function Writable(options) { - var Duplex = require('./_stream_duplex'); - - // Writable ctor is applied to Duplexes, though they're not - // instanceof Writable, they're instanceof Readable. - if (!(this instanceof Writable) && !(this instanceof Duplex)) - return new Writable(options); - - this._writableState = new WritableState(options, this); - - // legacy. - this.writable = true; - - Stream.call(this); -} - -// Otherwise people can pipe Writable streams, which is just wrong. -Writable.prototype.pipe = function() { - this.emit('error', new Error('Cannot pipe. Not readable.')); -}; - - -function writeAfterEnd(stream, state, cb) { - var er = new Error('write after end'); - // TODO: defer error events consistently everywhere, not just the cb - stream.emit('error', er); - process.nextTick(function() { - cb(er); - }); -} - -// If we get something that is not a buffer, string, null, or undefined, -// and we're not in objectMode, then that's an error. -// Otherwise stream chunks are all considered to be of length=1, and the -// watermarks determine how many objects to keep in the buffer, rather than -// how many bytes or characters. -function validChunk(stream, state, chunk, cb) { - var valid = true; - if (!Buffer.isBuffer(chunk) && - 'string' !== typeof chunk && - chunk !== null && - chunk !== undefined && - !state.objectMode) { - var er = new TypeError('Invalid non-string/buffer chunk'); - stream.emit('error', er); - process.nextTick(function() { - cb(er); - }); - valid = false; - } - return valid; -} - -Writable.prototype.write = function(chunk, encoding, cb) { - var state = this._writableState; - var ret = false; - - if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (Buffer.isBuffer(chunk)) - encoding = 'buffer'; - else if (!encoding) - encoding = state.defaultEncoding; - - if (typeof cb !== 'function') - cb = function() {}; - - if (state.ended) - writeAfterEnd(this, state, cb); - else if (validChunk(this, state, chunk, cb)) - ret = writeOrBuffer(this, state, chunk, encoding, cb); - - return ret; -}; - -function decodeChunk(state, chunk, encoding) { - if (!state.objectMode && - state.decodeStrings !== false && - typeof chunk === 'string') { - chunk = new Buffer(chunk, encoding); - } - return chunk; -} - -// if we're already writing something, then just put this -// in the queue, and wait our turn. Otherwise, call _write -// If we return false, then we need a drain event, so set that flag. -function writeOrBuffer(stream, state, chunk, encoding, cb) { - chunk = decodeChunk(state, chunk, encoding); - if (Buffer.isBuffer(chunk)) - encoding = 'buffer'; - var len = state.objectMode ? 1 : chunk.length; - - state.length += len; - - var ret = state.length < state.highWaterMark; - // we must ensure that previous needDrain will not be reset to false. - if (!ret) - state.needDrain = true; - - if (state.writing) - state.buffer.push(new WriteReq(chunk, encoding, cb)); - else - doWrite(stream, state, len, chunk, encoding, cb); - - return ret; -} - -function doWrite(stream, state, len, chunk, encoding, cb) { - state.writelen = len; - state.writecb = cb; - state.writing = true; - state.sync = true; - stream._write(chunk, encoding, state.onwrite); - state.sync = false; -} - -function onwriteError(stream, state, sync, er, cb) { - if (sync) - process.nextTick(function() { - cb(er); - }); - else - cb(er); - - stream._writableState.errorEmitted = true; - stream.emit('error', er); -} - -function onwriteStateUpdate(state) { - state.writing = false; - state.writecb = null; - state.length -= state.writelen; - state.writelen = 0; -} - -function onwrite(stream, er) { - var state = stream._writableState; - var sync = state.sync; - var cb = state.writecb; - - onwriteStateUpdate(state); - - if (er) - onwriteError(stream, state, sync, er, cb); - else { - // Check if we're actually ready to finish, but don't emit yet - var finished = needFinish(stream, state); - - if (!finished && !state.bufferProcessing && state.buffer.length) - clearBuffer(stream, state); - - if (sync) { - process.nextTick(function() { - afterWrite(stream, state, finished, cb); - }); - } else { - afterWrite(stream, state, finished, cb); - } - } -} - -function afterWrite(stream, state, finished, cb) { - if (!finished) - onwriteDrain(stream, state); - cb(); - if (finished) - finishMaybe(stream, state); -} - -// Must force callback to be called on nextTick, so that we don't -// emit 'drain' before the write() consumer gets the 'false' return -// value, and has a chance to attach a 'drain' listener. -function onwriteDrain(stream, state) { - if (state.length === 0 && state.needDrain) { - state.needDrain = false; - stream.emit('drain'); - } -} - - -// if there's something in the buffer waiting, then process it -function clearBuffer(stream, state) { - state.bufferProcessing = true; - - for (var c = 0; c < state.buffer.length; c++) { - var entry = state.buffer[c]; - var chunk = entry.chunk; - var encoding = entry.encoding; - var cb = entry.callback; - var len = state.objectMode ? 1 : chunk.length; - - doWrite(stream, state, len, chunk, encoding, cb); - - // if we didn't call the onwrite immediately, then - // it means that we need to wait until it does. - // also, that means that the chunk and cb are currently - // being processed, so move the buffer counter past them. - if (state.writing) { - c++; - break; - } - } - - state.bufferProcessing = false; - if (c < state.buffer.length) - state.buffer = state.buffer.slice(c); - else - state.buffer.length = 0; -} - -Writable.prototype._write = function(chunk, encoding, cb) { - cb(new Error('not implemented')); -}; - -Writable.prototype.end = function(chunk, encoding, cb) { - var state = this._writableState; - - if (typeof chunk === 'function') { - cb = chunk; - chunk = null; - encoding = null; - } else if (typeof encoding === 'function') { - cb = encoding; - encoding = null; - } - - if (typeof chunk !== 'undefined' && chunk !== null) - this.write(chunk, encoding); - - // ignore unnecessary end() calls. - if (!state.ending && !state.finished) - endWritable(this, state, cb); -}; - - -function needFinish(stream, state) { - return (state.ending && - state.length === 0 && - !state.finished && - !state.writing); -} - -function finishMaybe(stream, state) { - var need = needFinish(stream, state); - if (need) { - state.finished = true; - stream.emit('finish'); - } - return need; -} - -function endWritable(stream, state, cb) { - state.ending = true; - finishMaybe(stream, state); - if (cb) { - if (state.finished) - process.nextTick(cb); - else - stream.once('finish', cb); - } - state.ended = true; -} - -}).call(this,require('_process')) -},{"./_stream_duplex":115,"_process":114,"buffer":12,"core-util-is":16,"inherits":55,"stream":128}],120:[function(require,module,exports){ -arguments[4][37][0].apply(exports,arguments) -},{"dup":37}],121:[function(require,module,exports){ -arguments[4][44][0].apply(exports,arguments) -},{"buffer":12,"dup":44}],122:[function(require,module,exports){ -(function (process){ -var Stream = require('stream'); // hack to fix a circular dependency issue when used with browserify -exports = module.exports = require('./lib/_stream_readable.js'); -exports.Stream = Stream; -exports.Readable = exports; -exports.Writable = require('./lib/_stream_writable.js'); -exports.Duplex = require('./lib/_stream_duplex.js'); -exports.Transform = require('./lib/_stream_transform.js'); -exports.PassThrough = require('./lib/_stream_passthrough.js'); -if (!process.browser && process.env.READABLE_STREAM === 'disable') { - module.exports = require('stream'); -} - -}).call(this,require('_process')) -},{"./lib/_stream_duplex.js":115,"./lib/_stream_passthrough.js":116,"./lib/_stream_readable.js":117,"./lib/_stream_transform.js":118,"./lib/_stream_writable.js":119,"_process":114,"stream":128}],123:[function(require,module,exports){ -/* eslint-disable node/no-deprecated-api */ -var buffer = require('buffer') -var Buffer = buffer.Buffer - -// alternative to using Object.keys for old browsers -function copyProps (src, dst) { - for (var key in src) { - dst[key] = src[key] - } -} -if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { - module.exports = buffer -} else { - // Copy properties from require('buffer') - copyProps(buffer, exports) - exports.Buffer = SafeBuffer -} - -function SafeBuffer (arg, encodingOrOffset, length) { - return Buffer(arg, encodingOrOffset, length) -} - -// Copy static methods from Buffer -copyProps(Buffer, SafeBuffer) - -SafeBuffer.from = function (arg, encodingOrOffset, length) { - if (typeof arg === 'number') { - throw new TypeError('Argument must not be a number') - } - return Buffer(arg, encodingOrOffset, length) -} - -SafeBuffer.alloc = function (size, fill, encoding) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - var buf = Buffer(size) - if (fill !== undefined) { - if (typeof encoding === 'string') { - buf.fill(fill, encoding) - } else { - buf.fill(fill) - } - } else { - buf.fill(0) - } - return buf -} - -SafeBuffer.allocUnsafe = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return Buffer(size) -} - -SafeBuffer.allocUnsafeSlow = function (size) { - if (typeof size !== 'number') { - throw new TypeError('Argument must be a number') - } - return buffer.SlowBuffer(size) -} - -},{"buffer":12}],124:[function(require,module,exports){ -arguments[4][52][0].apply(exports,arguments) -},{"./lib/decoder":125,"./lib/encoder":126,"dup":52}],125:[function(require,module,exports){ -(function (Buffer){ -/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- / -/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ -/* - Copyright 2011 notmasteryet - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -// - The JPEG specification can be found in the ITU CCITT Recommendation T.81 -// (www.w3.org/Graphics/JPEG/itu-t81.pdf) -// - The JFIF specification can be found in the JPEG File Interchange Format -// (www.w3.org/Graphics/JPEG/jfif3.pdf) -// - The Adobe Application-Specific JPEG markers in the Supporting the DCT Filters -// in PostScript Level 2, Technical Note #5116 -// (partners.adobe.com/public/developer/en/ps/sdk/5116.DCT_Filter.pdf) - -var JpegImage = (function jpegImage() { - "use strict"; - var dctZigZag = new Int32Array([ - 0, - 1, 8, - 16, 9, 2, - 3, 10, 17, 24, - 32, 25, 18, 11, 4, - 5, 12, 19, 26, 33, 40, - 48, 41, 34, 27, 20, 13, 6, - 7, 14, 21, 28, 35, 42, 49, 56, - 57, 50, 43, 36, 29, 22, 15, - 23, 30, 37, 44, 51, 58, - 59, 52, 45, 38, 31, - 39, 46, 53, 60, - 61, 54, 47, - 55, 62, - 63 - ]); - - var dctCos1 = 4017 // cos(pi/16) - var dctSin1 = 799 // sin(pi/16) - var dctCos3 = 3406 // cos(3*pi/16) - var dctSin3 = 2276 // sin(3*pi/16) - var dctCos6 = 1567 // cos(6*pi/16) - var dctSin6 = 3784 // sin(6*pi/16) - var dctSqrt2 = 5793 // sqrt(2) - var dctSqrt1d2 = 2896 // sqrt(2) / 2 - - function constructor() { - } - - function buildHuffmanTable(codeLengths, values) { - var k = 0, code = [], i, j, length = 16; - while (length > 0 && !codeLengths[length - 1]) - length--; - code.push({children: [], index: 0}); - var p = code[0], q; - for (i = 0; i < length; i++) { - for (j = 0; j < codeLengths[i]; j++) { - p = code.pop(); - p.children[p.index] = values[k]; - while (p.index > 0) { - p = code.pop(); - } - p.index++; - code.push(p); - while (code.length <= i) { - code.push(q = {children: [], index: 0}); - p.children[p.index] = q.children; - p = q; - } - k++; - } - if (i + 1 < length) { - // p here points to last code - code.push(q = {children: [], index: 0}); - p.children[p.index] = q.children; - p = q; - } - } - return code[0].children; - } - - function decodeScan(data, offset, - frame, components, resetInterval, - spectralStart, spectralEnd, - successivePrev, successive) { - var precision = frame.precision; - var samplesPerLine = frame.samplesPerLine; - var scanLines = frame.scanLines; - var mcusPerLine = frame.mcusPerLine; - var progressive = frame.progressive; - var maxH = frame.maxH, maxV = frame.maxV; - - var startOffset = offset, bitsData = 0, bitsCount = 0; - function readBit() { - if (bitsCount > 0) { - bitsCount--; - return (bitsData >> bitsCount) & 1; - } - bitsData = data[offset++]; - if (bitsData == 0xFF) { - var nextByte = data[offset++]; - if (nextByte) { - throw "unexpected marker: " + ((bitsData << 8) | nextByte).toString(16); - } - // unstuff 0 - } - bitsCount = 7; - return bitsData >>> 7; - } - function decodeHuffman(tree) { - var node = tree, bit; - while ((bit = readBit()) !== null) { - node = node[bit]; - if (typeof node === 'number') - return node; - if (typeof node !== 'object') - throw "invalid huffman sequence"; - } - return null; - } - function receive(length) { - var n = 0; - while (length > 0) { - var bit = readBit(); - if (bit === null) return; - n = (n << 1) | bit; - length--; - } - return n; - } - function receiveAndExtend(length) { - var n = receive(length); - if (n >= 1 << (length - 1)) - return n; - return n + (-1 << length) + 1; - } - function decodeBaseline(component, zz) { - var t = decodeHuffman(component.huffmanTableDC); - var diff = t === 0 ? 0 : receiveAndExtend(t); - zz[0]= (component.pred += diff); - var k = 1; - while (k < 64) { - var rs = decodeHuffman(component.huffmanTableAC); - var s = rs & 15, r = rs >> 4; - if (s === 0) { - if (r < 15) - break; - k += 16; - continue; - } - k += r; - var z = dctZigZag[k]; - zz[z] = receiveAndExtend(s); - k++; - } - } - function decodeDCFirst(component, zz) { - var t = decodeHuffman(component.huffmanTableDC); - var diff = t === 0 ? 0 : (receiveAndExtend(t) << successive); - zz[0] = (component.pred += diff); - } - function decodeDCSuccessive(component, zz) { - zz[0] |= readBit() << successive; - } - var eobrun = 0; - function decodeACFirst(component, zz) { - if (eobrun > 0) { - eobrun--; - return; - } - var k = spectralStart, e = spectralEnd; - while (k <= e) { - var rs = decodeHuffman(component.huffmanTableAC); - var s = rs & 15, r = rs >> 4; - if (s === 0) { - if (r < 15) { - eobrun = receive(r) + (1 << r) - 1; - break; - } - k += 16; - continue; - } - k += r; - var z = dctZigZag[k]; - zz[z] = receiveAndExtend(s) * (1 << successive); - k++; - } - } - var successiveACState = 0, successiveACNextValue; - function decodeACSuccessive(component, zz) { - var k = spectralStart, e = spectralEnd, r = 0; - while (k <= e) { - var z = dctZigZag[k]; - switch (successiveACState) { - case 0: // initial state - var rs = decodeHuffman(component.huffmanTableAC); - var s = rs & 15, r = rs >> 4; - if (s === 0) { - if (r < 15) { - eobrun = receive(r) + (1 << r); - successiveACState = 4; - } else { - r = 16; - successiveACState = 1; - } - } else { - if (s !== 1) - throw "invalid ACn encoding"; - successiveACNextValue = receiveAndExtend(s); - successiveACState = r ? 2 : 3; - } - continue; - case 1: // skipping r zero items - case 2: - if (zz[z]) - zz[z] += (readBit() << successive); - else { - r--; - if (r === 0) - successiveACState = successiveACState == 2 ? 3 : 0; - } - break; - case 3: // set value for a zero item - if (zz[z]) - zz[z] += (readBit() << successive); - else { - zz[z] = successiveACNextValue << successive; - successiveACState = 0; - } - break; - case 4: // eob - if (zz[z]) - zz[z] += (readBit() << successive); - break; - } - k++; - } - if (successiveACState === 4) { - eobrun--; - if (eobrun === 0) - successiveACState = 0; - } - } - function decodeMcu(component, decode, mcu, row, col) { - var mcuRow = (mcu / mcusPerLine) | 0; - var mcuCol = mcu % mcusPerLine; - var blockRow = mcuRow * component.v + row; - var blockCol = mcuCol * component.h + col; - decode(component, component.blocks[blockRow][blockCol]); - } - function decodeBlock(component, decode, mcu) { - var blockRow = (mcu / component.blocksPerLine) | 0; - var blockCol = mcu % component.blocksPerLine; - decode(component, component.blocks[blockRow][blockCol]); - } - - var componentsLength = components.length; - var component, i, j, k, n; - var decodeFn; - if (progressive) { - if (spectralStart === 0) - decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive; - else - decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive; - } else { - decodeFn = decodeBaseline; - } - - var mcu = 0, marker; - var mcuExpected; - if (componentsLength == 1) { - mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn; - } else { - mcuExpected = mcusPerLine * frame.mcusPerColumn; - } - if (!resetInterval) resetInterval = mcuExpected; - - var h, v; - while (mcu < mcuExpected) { - // reset interval stuff - for (i = 0; i < componentsLength; i++) - components[i].pred = 0; - eobrun = 0; - - if (componentsLength == 1) { - component = components[0]; - for (n = 0; n < resetInterval; n++) { - decodeBlock(component, decodeFn, mcu); - mcu++; - } - } else { - for (n = 0; n < resetInterval; n++) { - for (i = 0; i < componentsLength; i++) { - component = components[i]; - h = component.h; - v = component.v; - for (j = 0; j < v; j++) { - for (k = 0; k < h; k++) { - decodeMcu(component, decodeFn, mcu, j, k); - } - } - } - mcu++; - - // If we've reached our expected MCU's, stop decoding - if (mcu === mcuExpected) break; - } - } - - // find marker - bitsCount = 0; - marker = (data[offset] << 8) | data[offset + 1]; - if (marker < 0xFF00) { - throw "marker was not found"; - } - - if (marker >= 0xFFD0 && marker <= 0xFFD7) { // RSTx - offset += 2; - } - else - break; - } - - return offset - startOffset; - } - - function buildComponentData(frame, component) { - var lines = []; - var blocksPerLine = component.blocksPerLine; - var blocksPerColumn = component.blocksPerColumn; - var samplesPerLine = blocksPerLine << 3; - var R = new Int32Array(64), r = new Uint8Array(64); - - // A port of poppler's IDCT method which in turn is taken from: - // Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz, - // "Practical Fast 1-D DCT Algorithms with 11 Multiplications", - // IEEE Intl. Conf. on Acoustics, Speech & Signal Processing, 1989, - // 988-991. - function quantizeAndInverse(zz, dataOut, dataIn) { - var qt = component.quantizationTable; - var v0, v1, v2, v3, v4, v5, v6, v7, t; - var p = dataIn; - var i; - - // dequant - for (i = 0; i < 64; i++) - p[i] = zz[i] * qt[i]; - - // inverse DCT on rows - for (i = 0; i < 8; ++i) { - var row = 8 * i; - - // check for all-zero AC coefficients - if (p[1 + row] == 0 && p[2 + row] == 0 && p[3 + row] == 0 && - p[4 + row] == 0 && p[5 + row] == 0 && p[6 + row] == 0 && - p[7 + row] == 0) { - t = (dctSqrt2 * p[0 + row] + 512) >> 10; - p[0 + row] = t; - p[1 + row] = t; - p[2 + row] = t; - p[3 + row] = t; - p[4 + row] = t; - p[5 + row] = t; - p[6 + row] = t; - p[7 + row] = t; - continue; - } - - // stage 4 - v0 = (dctSqrt2 * p[0 + row] + 128) >> 8; - v1 = (dctSqrt2 * p[4 + row] + 128) >> 8; - v2 = p[2 + row]; - v3 = p[6 + row]; - v4 = (dctSqrt1d2 * (p[1 + row] - p[7 + row]) + 128) >> 8; - v7 = (dctSqrt1d2 * (p[1 + row] + p[7 + row]) + 128) >> 8; - v5 = p[3 + row] << 4; - v6 = p[5 + row] << 4; - - // stage 3 - t = (v0 - v1+ 1) >> 1; - v0 = (v0 + v1 + 1) >> 1; - v1 = t; - t = (v2 * dctSin6 + v3 * dctCos6 + 128) >> 8; - v2 = (v2 * dctCos6 - v3 * dctSin6 + 128) >> 8; - v3 = t; - t = (v4 - v6 + 1) >> 1; - v4 = (v4 + v6 + 1) >> 1; - v6 = t; - t = (v7 + v5 + 1) >> 1; - v5 = (v7 - v5 + 1) >> 1; - v7 = t; - - // stage 2 - t = (v0 - v3 + 1) >> 1; - v0 = (v0 + v3 + 1) >> 1; - v3 = t; - t = (v1 - v2 + 1) >> 1; - v1 = (v1 + v2 + 1) >> 1; - v2 = t; - t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; - v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; - v7 = t; - t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; - v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; - v6 = t; - - // stage 1 - p[0 + row] = v0 + v7; - p[7 + row] = v0 - v7; - p[1 + row] = v1 + v6; - p[6 + row] = v1 - v6; - p[2 + row] = v2 + v5; - p[5 + row] = v2 - v5; - p[3 + row] = v3 + v4; - p[4 + row] = v3 - v4; - } - - // inverse DCT on columns - for (i = 0; i < 8; ++i) { - var col = i; - - // check for all-zero AC coefficients - if (p[1*8 + col] == 0 && p[2*8 + col] == 0 && p[3*8 + col] == 0 && - p[4*8 + col] == 0 && p[5*8 + col] == 0 && p[6*8 + col] == 0 && - p[7*8 + col] == 0) { - t = (dctSqrt2 * dataIn[i+0] + 8192) >> 14; - p[0*8 + col] = t; - p[1*8 + col] = t; - p[2*8 + col] = t; - p[3*8 + col] = t; - p[4*8 + col] = t; - p[5*8 + col] = t; - p[6*8 + col] = t; - p[7*8 + col] = t; - continue; - } - - // stage 4 - v0 = (dctSqrt2 * p[0*8 + col] + 2048) >> 12; - v1 = (dctSqrt2 * p[4*8 + col] + 2048) >> 12; - v2 = p[2*8 + col]; - v3 = p[6*8 + col]; - v4 = (dctSqrt1d2 * (p[1*8 + col] - p[7*8 + col]) + 2048) >> 12; - v7 = (dctSqrt1d2 * (p[1*8 + col] + p[7*8 + col]) + 2048) >> 12; - v5 = p[3*8 + col]; - v6 = p[5*8 + col]; - - // stage 3 - t = (v0 - v1 + 1) >> 1; - v0 = (v0 + v1 + 1) >> 1; - v1 = t; - t = (v2 * dctSin6 + v3 * dctCos6 + 2048) >> 12; - v2 = (v2 * dctCos6 - v3 * dctSin6 + 2048) >> 12; - v3 = t; - t = (v4 - v6 + 1) >> 1; - v4 = (v4 + v6 + 1) >> 1; - v6 = t; - t = (v7 + v5 + 1) >> 1; - v5 = (v7 - v5 + 1) >> 1; - v7 = t; - - // stage 2 - t = (v0 - v3 + 1) >> 1; - v0 = (v0 + v3 + 1) >> 1; - v3 = t; - t = (v1 - v2 + 1) >> 1; - v1 = (v1 + v2 + 1) >> 1; - v2 = t; - t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; - v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; - v7 = t; - t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; - v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; - v6 = t; - - // stage 1 - p[0*8 + col] = v0 + v7; - p[7*8 + col] = v0 - v7; - p[1*8 + col] = v1 + v6; - p[6*8 + col] = v1 - v6; - p[2*8 + col] = v2 + v5; - p[5*8 + col] = v2 - v5; - p[3*8 + col] = v3 + v4; - p[4*8 + col] = v3 - v4; - } - - // convert to 8-bit integers - for (i = 0; i < 64; ++i) { - var sample = 128 + ((p[i] + 8) >> 4); - dataOut[i] = sample < 0 ? 0 : sample > 0xFF ? 0xFF : sample; - } - } - - var i, j; - for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) { - var scanLine = blockRow << 3; - for (i = 0; i < 8; i++) - lines.push(new Uint8Array(samplesPerLine)); - for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) { - quantizeAndInverse(component.blocks[blockRow][blockCol], r, R); - - var offset = 0, sample = blockCol << 3; - for (j = 0; j < 8; j++) { - var line = lines[scanLine + j]; - for (i = 0; i < 8; i++) - line[sample + i] = r[offset++]; - } - } - } - return lines; - } - - function clampTo8bit(a) { - return a < 0 ? 0 : a > 255 ? 255 : a; - } - - constructor.prototype = { - load: function load(path) { - var xhr = new XMLHttpRequest(); - xhr.open("GET", path, true); - xhr.responseType = "arraybuffer"; - xhr.onload = (function() { - // TODO catch parse error - var data = new Uint8Array(xhr.response || xhr.mozResponseArrayBuffer); - this.parse(data); - if (this.onload) - this.onload(); - }).bind(this); - xhr.send(null); - }, - parse: function parse(data) { - var offset = 0, length = data.length; - function readUint16() { - var value = (data[offset] << 8) | data[offset + 1]; - offset += 2; - return value; - } - function readDataBlock() { - var length = readUint16(); - var array = data.subarray(offset, offset + length - 2); - offset += array.length; - return array; - } - function prepareComponents(frame) { - var maxH = 0, maxV = 0; - var component, componentId; - for (componentId in frame.components) { - if (frame.components.hasOwnProperty(componentId)) { - component = frame.components[componentId]; - if (maxH < component.h) maxH = component.h; - if (maxV < component.v) maxV = component.v; - } - } - var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / maxH); - var mcusPerColumn = Math.ceil(frame.scanLines / 8 / maxV); - for (componentId in frame.components) { - if (frame.components.hasOwnProperty(componentId)) { - component = frame.components[componentId]; - var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * component.h / maxH); - var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * component.v / maxV); - var blocksPerLineForMcu = mcusPerLine * component.h; - var blocksPerColumnForMcu = mcusPerColumn * component.v; - var blocks = []; - for (var i = 0; i < blocksPerColumnForMcu; i++) { - var row = []; - for (var j = 0; j < blocksPerLineForMcu; j++) - row.push(new Int32Array(64)); - blocks.push(row); - } - component.blocksPerLine = blocksPerLine; - component.blocksPerColumn = blocksPerColumn; - component.blocks = blocks; - } - } - frame.maxH = maxH; - frame.maxV = maxV; - frame.mcusPerLine = mcusPerLine; - frame.mcusPerColumn = mcusPerColumn; - } - var jfif = null; - var adobe = null; - var pixels = null; - var frame, resetInterval; - var quantizationTables = [], frames = []; - var huffmanTablesAC = [], huffmanTablesDC = []; - var fileMarker = readUint16(); - if (fileMarker != 0xFFD8) { // SOI (Start of Image) - throw "SOI not found"; - } - - fileMarker = readUint16(); - while (fileMarker != 0xFFD9) { // EOI (End of image) - var i, j, l; - switch(fileMarker) { - case 0xFF00: break; - case 0xFFE0: // APP0 (Application Specific) - case 0xFFE1: // APP1 - case 0xFFE2: // APP2 - case 0xFFE3: // APP3 - case 0xFFE4: // APP4 - case 0xFFE5: // APP5 - case 0xFFE6: // APP6 - case 0xFFE7: // APP7 - case 0xFFE8: // APP8 - case 0xFFE9: // APP9 - case 0xFFEA: // APP10 - case 0xFFEB: // APP11 - case 0xFFEC: // APP12 - case 0xFFED: // APP13 - case 0xFFEE: // APP14 - case 0xFFEF: // APP15 - case 0xFFFE: // COM (Comment) - var appData = readDataBlock(); - - if (fileMarker === 0xFFE0) { - if (appData[0] === 0x4A && appData[1] === 0x46 && appData[2] === 0x49 && - appData[3] === 0x46 && appData[4] === 0) { // 'JFIF\x00' - jfif = { - version: { major: appData[5], minor: appData[6] }, - densityUnits: appData[7], - xDensity: (appData[8] << 8) | appData[9], - yDensity: (appData[10] << 8) | appData[11], - thumbWidth: appData[12], - thumbHeight: appData[13], - thumbData: appData.subarray(14, 14 + 3 * appData[12] * appData[13]) - }; - } - } - // TODO APP1 - Exif - if (fileMarker === 0xFFEE) { - if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6F && - appData[3] === 0x62 && appData[4] === 0x65 && appData[5] === 0) { // 'Adobe\x00' - adobe = { - version: appData[6], - flags0: (appData[7] << 8) | appData[8], - flags1: (appData[9] << 8) | appData[10], - transformCode: appData[11] - }; - } - } - break; - - case 0xFFDB: // DQT (Define Quantization Tables) - var quantizationTablesLength = readUint16(); - var quantizationTablesEnd = quantizationTablesLength + offset - 2; - while (offset < quantizationTablesEnd) { - var quantizationTableSpec = data[offset++]; - var tableData = new Int32Array(64); - if ((quantizationTableSpec >> 4) === 0) { // 8 bit values - for (j = 0; j < 64; j++) { - var z = dctZigZag[j]; - tableData[z] = data[offset++]; - } - } else if ((quantizationTableSpec >> 4) === 1) { //16 bit - for (j = 0; j < 64; j++) { - var z = dctZigZag[j]; - tableData[z] = readUint16(); - } - } else - throw "DQT: invalid table spec"; - quantizationTables[quantizationTableSpec & 15] = tableData; - } - break; - - case 0xFFC0: // SOF0 (Start of Frame, Baseline DCT) - case 0xFFC1: // SOF1 (Start of Frame, Extended DCT) - case 0xFFC2: // SOF2 (Start of Frame, Progressive DCT) - readUint16(); // skip data length - frame = {}; - frame.extended = (fileMarker === 0xFFC1); - frame.progressive = (fileMarker === 0xFFC2); - frame.precision = data[offset++]; - frame.scanLines = readUint16(); - frame.samplesPerLine = readUint16(); - frame.components = {}; - frame.componentsOrder = []; - var componentsCount = data[offset++], componentId; - var maxH = 0, maxV = 0; - for (i = 0; i < componentsCount; i++) { - componentId = data[offset]; - var h = data[offset + 1] >> 4; - var v = data[offset + 1] & 15; - var qId = data[offset + 2]; - frame.componentsOrder.push(componentId); - frame.components[componentId] = { - h: h, - v: v, - quantizationTable: quantizationTables[qId] - }; - offset += 3; - } - prepareComponents(frame); - frames.push(frame); - break; - - case 0xFFC4: // DHT (Define Huffman Tables) - var huffmanLength = readUint16(); - for (i = 2; i < huffmanLength;) { - var huffmanTableSpec = data[offset++]; - var codeLengths = new Uint8Array(16); - var codeLengthSum = 0; - for (j = 0; j < 16; j++, offset++) - codeLengthSum += (codeLengths[j] = data[offset]); - var huffmanValues = new Uint8Array(codeLengthSum); - for (j = 0; j < codeLengthSum; j++, offset++) - huffmanValues[j] = data[offset]; - i += 17 + codeLengthSum; - - ((huffmanTableSpec >> 4) === 0 ? - huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = - buildHuffmanTable(codeLengths, huffmanValues); - } - break; - - case 0xFFDD: // DRI (Define Restart Interval) - readUint16(); // skip data length - resetInterval = readUint16(); - break; - - case 0xFFDA: // SOS (Start of Scan) - var scanLength = readUint16(); - var selectorsCount = data[offset++]; - var components = [], component; - for (i = 0; i < selectorsCount; i++) { - component = frame.components[data[offset++]]; - var tableSpec = data[offset++]; - component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4]; - component.huffmanTableAC = huffmanTablesAC[tableSpec & 15]; - components.push(component); - } - var spectralStart = data[offset++]; - var spectralEnd = data[offset++]; - var successiveApproximation = data[offset++]; - var processed = decodeScan(data, offset, - frame, components, resetInterval, - spectralStart, spectralEnd, - successiveApproximation >> 4, successiveApproximation & 15); - offset += processed; - break; - default: - if (data[offset - 3] == 0xFF && - data[offset - 2] >= 0xC0 && data[offset - 2] <= 0xFE) { - // could be incorrect encoding -- last 0xFF byte of the previous - // block was eaten by the encoder - offset -= 3; - break; - } - throw "unknown JPEG marker " + fileMarker.toString(16); - } - fileMarker = readUint16(); - } - if (frames.length != 1) - throw "only single frame JPEGs supported"; - - this.width = frame.samplesPerLine; - this.height = frame.scanLines; - this.jfif = jfif; - this.adobe = adobe; - this.components = []; - for (var i = 0; i < frame.componentsOrder.length; i++) { - var component = frame.components[frame.componentsOrder[i]]; - this.components.push({ - lines: buildComponentData(frame, component), - scaleX: component.h / frame.maxH, - scaleY: component.v / frame.maxV - }); - } - }, - getData: function getData(width, height) { - var scaleX = this.width / width, scaleY = this.height / height; - - var component1, component2, component3, component4; - var component1Line, component2Line, component3Line, component4Line; - var x, y; - var offset = 0; - var Y, Cb, Cr, K, C, M, Ye, R, G, B; - var colorTransform; - var dataLength = width * height * this.components.length; - var data = new Uint8Array(dataLength); - switch (this.components.length) { - case 1: - component1 = this.components[0]; - for (y = 0; y < height; y++) { - component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; - for (x = 0; x < width; x++) { - Y = component1Line[0 | (x * component1.scaleX * scaleX)]; - - data[offset++] = Y; - } - } - break; - case 2: - // PDF might compress two component data in custom colorspace - component1 = this.components[0]; - component2 = this.components[1]; - for (y = 0; y < height; y++) { - component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; - component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; - for (x = 0; x < width; x++) { - Y = component1Line[0 | (x * component1.scaleX * scaleX)]; - data[offset++] = Y; - Y = component2Line[0 | (x * component2.scaleX * scaleX)]; - data[offset++] = Y; - } - } - break; - case 3: - // The default transform for three components is true - colorTransform = true; - // The adobe transform marker overrides any previous setting - if (this.adobe && this.adobe.transformCode) - colorTransform = true; - else if (typeof this.colorTransform !== 'undefined') - colorTransform = !!this.colorTransform; - - component1 = this.components[0]; - component2 = this.components[1]; - component3 = this.components[2]; - for (y = 0; y < height; y++) { - component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; - component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; - component3Line = component3.lines[0 | (y * component3.scaleY * scaleY)]; - for (x = 0; x < width; x++) { - if (!colorTransform) { - R = component1Line[0 | (x * component1.scaleX * scaleX)]; - G = component2Line[0 | (x * component2.scaleX * scaleX)]; - B = component3Line[0 | (x * component3.scaleX * scaleX)]; - } else { - Y = component1Line[0 | (x * component1.scaleX * scaleX)]; - Cb = component2Line[0 | (x * component2.scaleX * scaleX)]; - Cr = component3Line[0 | (x * component3.scaleX * scaleX)]; - - R = clampTo8bit(Y + 1.402 * (Cr - 128)); - G = clampTo8bit(Y - 0.3441363 * (Cb - 128) - 0.71413636 * (Cr - 128)); - B = clampTo8bit(Y + 1.772 * (Cb - 128)); - } - - data[offset++] = R; - data[offset++] = G; - data[offset++] = B; - } - } - break; - case 4: - if (!this.adobe) - throw 'Unsupported color mode (4 components)'; - // The default transform for four components is false - colorTransform = false; - // The adobe transform marker overrides any previous setting - if (this.adobe && this.adobe.transformCode) - colorTransform = true; - else if (typeof this.colorTransform !== 'undefined') - colorTransform = !!this.colorTransform; - - component1 = this.components[0]; - component2 = this.components[1]; - component3 = this.components[2]; - component4 = this.components[3]; - for (y = 0; y < height; y++) { - component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; - component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; - component3Line = component3.lines[0 | (y * component3.scaleY * scaleY)]; - component4Line = component4.lines[0 | (y * component4.scaleY * scaleY)]; - for (x = 0; x < width; x++) { - if (!colorTransform) { - C = component1Line[0 | (x * component1.scaleX * scaleX)]; - M = component2Line[0 | (x * component2.scaleX * scaleX)]; - Ye = component3Line[0 | (x * component3.scaleX * scaleX)]; - K = component4Line[0 | (x * component4.scaleX * scaleX)]; - } else { - Y = component1Line[0 | (x * component1.scaleX * scaleX)]; - Cb = component2Line[0 | (x * component2.scaleX * scaleX)]; - Cr = component3Line[0 | (x * component3.scaleX * scaleX)]; - K = component4Line[0 | (x * component4.scaleX * scaleX)]; - - C = 255 - clampTo8bit(Y + 1.402 * (Cr - 128)); - M = 255 - clampTo8bit(Y - 0.3441363 * (Cb - 128) - 0.71413636 * (Cr - 128)); - Ye = 255 - clampTo8bit(Y + 1.772 * (Cb - 128)); - } - data[offset++] = C; - data[offset++] = M; - data[offset++] = Ye; - data[offset++] = K; - } - } - break; - default: - throw 'Unsupported color mode'; - } - return data; - }, - copyToImageData: function copyToImageData(imageData) { - var width = imageData.width, height = imageData.height; - var imageDataArray = imageData.data; - var data = this.getData(width, height); - var i = 0, j = 0, x, y; - var Y, K, C, M, R, G, B; - switch (this.components.length) { - case 1: - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - Y = data[i++]; - - imageDataArray[j++] = Y; - imageDataArray[j++] = Y; - imageDataArray[j++] = Y; - imageDataArray[j++] = 255; - } - } - break; - case 3: - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - R = data[i++]; - G = data[i++]; - B = data[i++]; - - imageDataArray[j++] = R; - imageDataArray[j++] = G; - imageDataArray[j++] = B; - imageDataArray[j++] = 255; - } - } - break; - case 4: - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - C = data[i++]; - M = data[i++]; - Y = data[i++]; - K = data[i++]; - - R = 255 - clampTo8bit(C * (1 - K / 255) + K); - G = 255 - clampTo8bit(M * (1 - K / 255) + K); - B = 255 - clampTo8bit(Y * (1 - K / 255) + K); - - imageDataArray[j++] = R; - imageDataArray[j++] = G; - imageDataArray[j++] = B; - imageDataArray[j++] = 255; - } - } - break; - default: - throw 'Unsupported color mode'; - } - } - }; - - return constructor; -})(); -module.exports = decode; - -function decode(jpegData) { - var arr = new Uint8Array(jpegData); - var decoder = new JpegImage(); - decoder.parse(arr); - var data = decoder.getData(decoder.width, decoder.height); - var buf = new Buffer(decoder.width * decoder.height * 4); - var n = 0; - for (var i = 0; i < buf.length; i++) { - buf[i + (i/3 | 0)] = data[n++]; - if (i % 4 == 3) buf[i] = 255; - } - return { - data: buf, - width: decoder.width, - height: decoder.height - }; -} - -}).call(this,require("buffer").Buffer) -},{"buffer":12}],126:[function(require,module,exports){ -arguments[4][54][0].apply(exports,arguments) -},{"buffer":12,"dup":54}],127:[function(require,module,exports){ -(function (Buffer){ -'use strict' - -var ContentStream = require('contentstream') -var GifEncoder = require('gif-encoder') -var jpegJs = require('jpeg-js') -var PNG = require('pngjs-nozlib').PNG -var ndarray = require('ndarray') -var ops = require('ndarray-ops') -var through = require('through') - -function handleData (array, data, frame) { - var i, j, ptr = 0, c - if (array.shape.length === 4) { - return handleData(array.pick(frame), data, 0) - } else if (array.shape.length === 3) { - if (array.shape[2] === 3) { - ops.assign( - ndarray(data, - [array.shape[0], array.shape[1], 3], - [4, 4 * array.shape[0], 1]), - array) - ops.assigns( - ndarray(data, - [array.shape[0] * array.shape[1]], - [4], - 3), - 255) - } else if (array.shape[2] === 4) { - ops.assign( - ndarray(data, - [array.shape[0], array.shape[1], 4], - [4, array.shape[0] * 4, 1]), - array) - } else if (array.shape[2] === 1) { - ops.assign( - ndarray(data, - [array.shape[0], array.shape[1], 3], - [4, 4 * array.shape[0], 1]), - ndarray(array.data, - [array.shape[0], array.shape[1], 3], - [array.stride[0], array.stride[1], 0], - array.offset)) - ops.assigns( - ndarray(data, - [array.shape[0] * array.shape[1]], - [4], - 3), - 255) - } else { - return new Error('Incompatible array shape') - } - } else if (array.shape.length === 2) { - ops.assign( - ndarray(data, - [array.shape[0], array.shape[1], 3], - [4, 4 * array.shape[0], 1]), - ndarray(array.data, - [array.shape[0], array.shape[1], 3], - [array.stride[0], array.stride[1], 0], - array.offset)) - ops.assigns( - ndarray(data, - [array.shape[0] * array.shape[1]], - [4], - 3), - 255) - } else { - return new Error('Incompatible array shape') - } - return data -} - -function haderror (err) { - var result = through() - result.emit('error', err) - return result -} - -module.exports = function savePixels (array, type, options) { - options = options || {} - switch (type.toUpperCase()) { - case 'JPG': - case '.JPG': - case 'JPEG': - case '.JPEG': - case 'JPE': - case '.JPE': - var width = array.shape[0] - var height = array.shape[1] - var data = new Buffer(width * height * 4) - data = handleData(array, data) - var rawImageData = { - data: data, - width: width, - height: height - } - var jpegImageData = jpegJs.encode(rawImageData, options.quality) - return new ContentStream(jpegImageData.data) - - case 'GIF': - case '.GIF': - var frames = array.shape.length === 4 ? array.shape[0] : 1 - var width = array.shape.length === 4 ? array.shape[1] : array.shape[0] - var height = array.shape.length === 4 ? array.shape[2] : array.shape[1] - var data = new Buffer(width * height * 4) - var gif = new GifEncoder(width, height) - gif.writeHeader() - for (var i = 0; i < frames; i++) { - data = handleData(array, data, i) - gif.addFrame(data) - } - gif.finish() - return gif - - case 'PNG': - case '.PNG': - var png = new PNG({ - width: array.shape[0], - height: array.shape[1] - }) - var data = handleData(array, png.data) - if (typeof data === 'Error') return haderror(data) - png.data = data - return png.pack() - - case 'CANVAS': - var canvas = document.createElement('canvas') - var context = canvas.getContext('2d') - canvas.width = array.shape[0] - canvas.height = array.shape[1] - var imageData = context.getImageData(0, 0, canvas.width, canvas.height) - var data = imageData.data - data = handleData(array, data) - if (typeof data === 'Error') return haderror(data) - context.putImageData(imageData, 0, 0) - return canvas - - default: - return haderror(new Error('Unsupported file type: ' + type)) - } -} - -}).call(this,require("buffer").Buffer) -},{"buffer":12,"contentstream":15,"gif-encoder":34,"jpeg-js":124,"ndarray":69,"ndarray-ops":66,"pngjs-nozlib":111,"through":143}],128:[function(require,module,exports){ -// Copyright Joyent, Inc. and other Node contributors. -// -// Permission is hereby granted, free of charge, to any person obtaining a -// copy of this software and associated documentation files (the -// "Software"), to deal in the Software without restriction, including -// without limitation the rights to use, copy, modify, merge, publish, -// distribute, sublicense, and/or sell copies of the Software, and to permit -// persons to whom the Software is furnished to do so, subject to the -// following conditions: -// -// The above copyright notice and this permission notice shall be included -// in all copies or substantial portions of the Software. -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN -// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, -// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR -// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE -// USE OR OTHER DEALINGS IN THE SOFTWARE. - -module.exports = Stream; - -var EE = require('events').EventEmitter; -var inherits = require('inherits'); - -inherits(Stream, EE); -Stream.Readable = require('readable-stream/readable.js'); -Stream.Writable = require('readable-stream/writable.js'); -Stream.Duplex = require('readable-stream/duplex.js'); -Stream.Transform = require('readable-stream/transform.js'); -Stream.PassThrough = require('readable-stream/passthrough.js'); - -// Backwards-compat with node 0.4.x -Stream.Stream = Stream; - - - -// old-style streams. Note that the pipe method (the only relevant -// part of this class) is overridden in the Readable class. - -function Stream() { - EE.call(this); -} - -Stream.prototype.pipe = function(dest, options) { - var source = this; - - function ondata(chunk) { - if (dest.writable) { - if (false === dest.write(chunk) && source.pause) { - source.pause(); - } - } - } - - source.on('data', ondata); - - function ondrain() { - if (source.readable && source.resume) { - source.resume(); - } - } - - dest.on('drain', ondrain); - - // If the 'end' option is not supplied, dest.end() will be called when - // source gets the 'end' or 'close' events. Only dest.end() once. - if (!dest._isStdio && (!options || options.end !== false)) { - source.on('end', onend); - source.on('close', onclose); - } - - var didOnEnd = false; - function onend() { - if (didOnEnd) return; - didOnEnd = true; - - dest.end(); - } - - - function onclose() { - if (didOnEnd) return; - didOnEnd = true; - - if (typeof dest.destroy === 'function') dest.destroy(); - } - - // don't leave dangling pipes when there are errors. - function onerror(er) { - cleanup(); - if (EE.listenerCount(this, 'error') === 0) { - throw er; // Unhandled stream error in pipe. - } - } - - source.on('error', onerror); - dest.on('error', onerror); - - // remove all the event listeners that were added. - function cleanup() { - source.removeListener('data', ondata); - dest.removeListener('drain', ondrain); - - source.removeListener('end', onend); - source.removeListener('close', onclose); - - source.removeListener('error', onerror); - dest.removeListener('error', onerror); - - source.removeListener('end', cleanup); - source.removeListener('close', cleanup); - - dest.removeListener('close', cleanup); - } - - source.on('end', cleanup); - source.on('close', cleanup); - - dest.on('close', cleanup); - - dest.emit('pipe', source); - - // Allow for unix-like usage: A.pipe(B).pipe(C) - return dest; -}; - -},{"events":23,"inherits":55,"readable-stream/duplex.js":129,"readable-stream/passthrough.js":138,"readable-stream/readable.js":139,"readable-stream/transform.js":140,"readable-stream/writable.js":141}],129:[function(require,module,exports){ +},{}],118:[function(require,module,exports){ module.exports = require('./lib/_stream_duplex.js'); -},{"./lib/_stream_duplex.js":130}],130:[function(require,module,exports){ +},{"./lib/_stream_duplex.js":119}],119:[function(require,module,exports){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -60654,7 +58982,7 @@ Duplex.prototype._destroy = function (err, cb) { pna.nextTick(cb, err); }; -},{"./_stream_readable":132,"./_stream_writable":134,"core-util-is":16,"inherits":55,"process-nextick-args":113}],131:[function(require,module,exports){ +},{"./_stream_readable":121,"./_stream_writable":123,"core-util-is":14,"inherits":70,"process-nextick-args":128}],120:[function(require,module,exports){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -60702,7 +59030,7 @@ function PassThrough(options) { PassThrough.prototype._transform = function (chunk, encoding, cb) { cb(null, chunk); }; -},{"./_stream_transform":133,"core-util-is":16,"inherits":55}],132:[function(require,module,exports){ +},{"./_stream_transform":122,"core-util-is":14,"inherits":70}],121:[function(require,module,exports){ (function (process,global){ // Copyright Joyent, Inc. and other Node contributors. // @@ -61724,7 +60052,7 @@ function indexOf(xs, x) { return -1; } }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{"./_stream_duplex":130,"./internal/streams/BufferList":135,"./internal/streams/destroy":136,"./internal/streams/stream":137,"_process":114,"core-util-is":16,"events":23,"inherits":55,"isarray":58,"process-nextick-args":113,"safe-buffer":123,"string_decoder/":142,"util":8}],133:[function(require,module,exports){ +},{"./_stream_duplex":119,"./internal/streams/BufferList":124,"./internal/streams/destroy":125,"./internal/streams/stream":126,"_process":117,"core-util-is":14,"events":48,"inherits":70,"isarray":127,"process-nextick-args":128,"safe-buffer":134,"string_decoder/":129,"util":4}],122:[function(require,module,exports){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -61939,7 +60267,7 @@ function done(stream, er, data) { return stream.push(null); } -},{"./_stream_duplex":130,"core-util-is":16,"inherits":55}],134:[function(require,module,exports){ +},{"./_stream_duplex":119,"core-util-is":14,"inherits":70}],123:[function(require,module,exports){ (function (process,global,setImmediate){ // Copyright Joyent, Inc. and other Node contributors. // @@ -62629,7 +60957,7 @@ Writable.prototype._destroy = function (err, cb) { cb(err); }; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("timers").setImmediate) -},{"./_stream_duplex":130,"./internal/streams/destroy":136,"./internal/streams/stream":137,"_process":114,"core-util-is":16,"inherits":55,"process-nextick-args":113,"safe-buffer":123,"timers":144,"util-deprecate":150}],135:[function(require,module,exports){ +},{"./_stream_duplex":119,"./internal/streams/destroy":125,"./internal/streams/stream":126,"_process":117,"core-util-is":14,"inherits":70,"process-nextick-args":128,"safe-buffer":134,"timers":142,"util-deprecate":148}],124:[function(require,module,exports){ 'use strict'; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } @@ -62709,7 +61037,7 @@ if (util && util.inspect && util.inspect.custom) { return this.constructor.name + ' ' + obj; }; } -},{"safe-buffer":123,"util":8}],136:[function(require,module,exports){ +},{"safe-buffer":134,"util":4}],125:[function(require,module,exports){ 'use strict'; /**/ @@ -62784,28 +61112,65 @@ module.exports = { destroy: destroy, undestroy: undestroy }; -},{"process-nextick-args":113}],137:[function(require,module,exports){ +},{"process-nextick-args":128}],126:[function(require,module,exports){ module.exports = require('events').EventEmitter; -},{"events":23}],138:[function(require,module,exports){ -module.exports = require('./readable').PassThrough +},{"events":48}],127:[function(require,module,exports){ +var toString = {}.toString; -},{"./readable":139}],139:[function(require,module,exports){ -exports = module.exports = require('./lib/_stream_readable.js'); -exports.Stream = exports; -exports.Readable = exports; -exports.Writable = require('./lib/_stream_writable.js'); -exports.Duplex = require('./lib/_stream_duplex.js'); -exports.Transform = require('./lib/_stream_transform.js'); -exports.PassThrough = require('./lib/_stream_passthrough.js'); +module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; +}; -},{"./lib/_stream_duplex.js":130,"./lib/_stream_passthrough.js":131,"./lib/_stream_readable.js":132,"./lib/_stream_transform.js":133,"./lib/_stream_writable.js":134}],140:[function(require,module,exports){ -module.exports = require('./readable').Transform +},{}],128:[function(require,module,exports){ +(function (process){ +'use strict'; -},{"./readable":139}],141:[function(require,module,exports){ -module.exports = require('./lib/_stream_writable.js'); +if (!process.version || + process.version.indexOf('v0.') === 0 || + process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) { + module.exports = { nextTick: nextTick }; +} else { + module.exports = process +} -},{"./lib/_stream_writable.js":134}],142:[function(require,module,exports){ +function nextTick(fn, arg1, arg2, arg3) { + if (typeof fn !== 'function') { + throw new TypeError('"callback" argument must be a function'); + } + var len = arguments.length; + var args, i; + switch (len) { + case 0: + case 1: + return process.nextTick(fn); + case 2: + return process.nextTick(function afterTickOne() { + fn.call(null, arg1); + }); + case 3: + return process.nextTick(function afterTickTwo() { + fn.call(null, arg1, arg2); + }); + case 4: + return process.nextTick(function afterTickThree() { + fn.call(null, arg1, arg2, arg3); + }); + default: + args = new Array(len - 1); + i = 0; + while (i < args.length) { + args[i++] = arguments[i]; + } + return process.nextTick(function afterTick() { + fn.apply(null, args); + }); + } +} + + +}).call(this,require('_process')) +},{"_process":117}],129:[function(require,module,exports){ // Copyright Joyent, Inc. and other Node contributors. // // Permission is hereby granted, free of charge, to any person obtaining a @@ -63102,7 +61467,1573 @@ function simpleWrite(buf) { function simpleEnd(buf) { return buf && buf.length ? this.write(buf) : ''; } -},{"safe-buffer":123}],143:[function(require,module,exports){ +},{"safe-buffer":134}],130:[function(require,module,exports){ +module.exports = require('./readable').PassThrough + +},{"./readable":131}],131:[function(require,module,exports){ +exports = module.exports = require('./lib/_stream_readable.js'); +exports.Stream = exports; +exports.Readable = exports; +exports.Writable = require('./lib/_stream_writable.js'); +exports.Duplex = require('./lib/_stream_duplex.js'); +exports.Transform = require('./lib/_stream_transform.js'); +exports.PassThrough = require('./lib/_stream_passthrough.js'); + +},{"./lib/_stream_duplex.js":119,"./lib/_stream_passthrough.js":120,"./lib/_stream_readable.js":121,"./lib/_stream_transform.js":122,"./lib/_stream_writable.js":123}],132:[function(require,module,exports){ +module.exports = require('./readable').Transform + +},{"./readable":131}],133:[function(require,module,exports){ +module.exports = require('./lib/_stream_writable.js'); + +},{"./lib/_stream_writable.js":123}],134:[function(require,module,exports){ +/* eslint-disable node/no-deprecated-api */ +var buffer = require('buffer') +var Buffer = buffer.Buffer + +// alternative to using Object.keys for old browsers +function copyProps (src, dst) { + for (var key in src) { + dst[key] = src[key] + } +} +if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) { + module.exports = buffer +} else { + // Copy properties from require('buffer') + copyProps(buffer, exports) + exports.Buffer = SafeBuffer +} + +function SafeBuffer (arg, encodingOrOffset, length) { + return Buffer(arg, encodingOrOffset, length) +} + +// Copy static methods from Buffer +copyProps(Buffer, SafeBuffer) + +SafeBuffer.from = function (arg, encodingOrOffset, length) { + if (typeof arg === 'number') { + throw new TypeError('Argument must not be a number') + } + return Buffer(arg, encodingOrOffset, length) +} + +SafeBuffer.alloc = function (size, fill, encoding) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + var buf = Buffer(size) + if (fill !== undefined) { + if (typeof encoding === 'string') { + buf.fill(fill, encoding) + } else { + buf.fill(fill) + } + } else { + buf.fill(0) + } + return buf +} + +SafeBuffer.allocUnsafe = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return Buffer(size) +} + +SafeBuffer.allocUnsafeSlow = function (size) { + if (typeof size !== 'number') { + throw new TypeError('Argument must be a number') + } + return buffer.SlowBuffer(size) +} + +},{"buffer":47}],135:[function(require,module,exports){ +arguments[4][67][0].apply(exports,arguments) +},{"./lib/decoder":136,"./lib/encoder":137,"dup":67}],136:[function(require,module,exports){ +(function (Buffer){ +/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- / +/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */ +/* + Copyright 2011 notmasteryet + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +// - The JPEG specification can be found in the ITU CCITT Recommendation T.81 +// (www.w3.org/Graphics/JPEG/itu-t81.pdf) +// - The JFIF specification can be found in the JPEG File Interchange Format +// (www.w3.org/Graphics/JPEG/jfif3.pdf) +// - The Adobe Application-Specific JPEG markers in the Supporting the DCT Filters +// in PostScript Level 2, Technical Note #5116 +// (partners.adobe.com/public/developer/en/ps/sdk/5116.DCT_Filter.pdf) + +var JpegImage = (function jpegImage() { + "use strict"; + var dctZigZag = new Int32Array([ + 0, + 1, 8, + 16, 9, 2, + 3, 10, 17, 24, + 32, 25, 18, 11, 4, + 5, 12, 19, 26, 33, 40, + 48, 41, 34, 27, 20, 13, 6, + 7, 14, 21, 28, 35, 42, 49, 56, + 57, 50, 43, 36, 29, 22, 15, + 23, 30, 37, 44, 51, 58, + 59, 52, 45, 38, 31, + 39, 46, 53, 60, + 61, 54, 47, + 55, 62, + 63 + ]); + + var dctCos1 = 4017 // cos(pi/16) + var dctSin1 = 799 // sin(pi/16) + var dctCos3 = 3406 // cos(3*pi/16) + var dctSin3 = 2276 // sin(3*pi/16) + var dctCos6 = 1567 // cos(6*pi/16) + var dctSin6 = 3784 // sin(6*pi/16) + var dctSqrt2 = 5793 // sqrt(2) + var dctSqrt1d2 = 2896 // sqrt(2) / 2 + + function constructor() { + } + + function buildHuffmanTable(codeLengths, values) { + var k = 0, code = [], i, j, length = 16; + while (length > 0 && !codeLengths[length - 1]) + length--; + code.push({children: [], index: 0}); + var p = code[0], q; + for (i = 0; i < length; i++) { + for (j = 0; j < codeLengths[i]; j++) { + p = code.pop(); + p.children[p.index] = values[k]; + while (p.index > 0) { + p = code.pop(); + } + p.index++; + code.push(p); + while (code.length <= i) { + code.push(q = {children: [], index: 0}); + p.children[p.index] = q.children; + p = q; + } + k++; + } + if (i + 1 < length) { + // p here points to last code + code.push(q = {children: [], index: 0}); + p.children[p.index] = q.children; + p = q; + } + } + return code[0].children; + } + + function decodeScan(data, offset, + frame, components, resetInterval, + spectralStart, spectralEnd, + successivePrev, successive) { + var precision = frame.precision; + var samplesPerLine = frame.samplesPerLine; + var scanLines = frame.scanLines; + var mcusPerLine = frame.mcusPerLine; + var progressive = frame.progressive; + var maxH = frame.maxH, maxV = frame.maxV; + + var startOffset = offset, bitsData = 0, bitsCount = 0; + function readBit() { + if (bitsCount > 0) { + bitsCount--; + return (bitsData >> bitsCount) & 1; + } + bitsData = data[offset++]; + if (bitsData == 0xFF) { + var nextByte = data[offset++]; + if (nextByte) { + throw "unexpected marker: " + ((bitsData << 8) | nextByte).toString(16); + } + // unstuff 0 + } + bitsCount = 7; + return bitsData >>> 7; + } + function decodeHuffman(tree) { + var node = tree, bit; + while ((bit = readBit()) !== null) { + node = node[bit]; + if (typeof node === 'number') + return node; + if (typeof node !== 'object') + throw "invalid huffman sequence"; + } + return null; + } + function receive(length) { + var n = 0; + while (length > 0) { + var bit = readBit(); + if (bit === null) return; + n = (n << 1) | bit; + length--; + } + return n; + } + function receiveAndExtend(length) { + var n = receive(length); + if (n >= 1 << (length - 1)) + return n; + return n + (-1 << length) + 1; + } + function decodeBaseline(component, zz) { + var t = decodeHuffman(component.huffmanTableDC); + var diff = t === 0 ? 0 : receiveAndExtend(t); + zz[0]= (component.pred += diff); + var k = 1; + while (k < 64) { + var rs = decodeHuffman(component.huffmanTableAC); + var s = rs & 15, r = rs >> 4; + if (s === 0) { + if (r < 15) + break; + k += 16; + continue; + } + k += r; + var z = dctZigZag[k]; + zz[z] = receiveAndExtend(s); + k++; + } + } + function decodeDCFirst(component, zz) { + var t = decodeHuffman(component.huffmanTableDC); + var diff = t === 0 ? 0 : (receiveAndExtend(t) << successive); + zz[0] = (component.pred += diff); + } + function decodeDCSuccessive(component, zz) { + zz[0] |= readBit() << successive; + } + var eobrun = 0; + function decodeACFirst(component, zz) { + if (eobrun > 0) { + eobrun--; + return; + } + var k = spectralStart, e = spectralEnd; + while (k <= e) { + var rs = decodeHuffman(component.huffmanTableAC); + var s = rs & 15, r = rs >> 4; + if (s === 0) { + if (r < 15) { + eobrun = receive(r) + (1 << r) - 1; + break; + } + k += 16; + continue; + } + k += r; + var z = dctZigZag[k]; + zz[z] = receiveAndExtend(s) * (1 << successive); + k++; + } + } + var successiveACState = 0, successiveACNextValue; + function decodeACSuccessive(component, zz) { + var k = spectralStart, e = spectralEnd, r = 0; + while (k <= e) { + var z = dctZigZag[k]; + switch (successiveACState) { + case 0: // initial state + var rs = decodeHuffman(component.huffmanTableAC); + var s = rs & 15, r = rs >> 4; + if (s === 0) { + if (r < 15) { + eobrun = receive(r) + (1 << r); + successiveACState = 4; + } else { + r = 16; + successiveACState = 1; + } + } else { + if (s !== 1) + throw "invalid ACn encoding"; + successiveACNextValue = receiveAndExtend(s); + successiveACState = r ? 2 : 3; + } + continue; + case 1: // skipping r zero items + case 2: + if (zz[z]) + zz[z] += (readBit() << successive); + else { + r--; + if (r === 0) + successiveACState = successiveACState == 2 ? 3 : 0; + } + break; + case 3: // set value for a zero item + if (zz[z]) + zz[z] += (readBit() << successive); + else { + zz[z] = successiveACNextValue << successive; + successiveACState = 0; + } + break; + case 4: // eob + if (zz[z]) + zz[z] += (readBit() << successive); + break; + } + k++; + } + if (successiveACState === 4) { + eobrun--; + if (eobrun === 0) + successiveACState = 0; + } + } + function decodeMcu(component, decode, mcu, row, col) { + var mcuRow = (mcu / mcusPerLine) | 0; + var mcuCol = mcu % mcusPerLine; + var blockRow = mcuRow * component.v + row; + var blockCol = mcuCol * component.h + col; + decode(component, component.blocks[blockRow][blockCol]); + } + function decodeBlock(component, decode, mcu) { + var blockRow = (mcu / component.blocksPerLine) | 0; + var blockCol = mcu % component.blocksPerLine; + decode(component, component.blocks[blockRow][blockCol]); + } + + var componentsLength = components.length; + var component, i, j, k, n; + var decodeFn; + if (progressive) { + if (spectralStart === 0) + decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive; + else + decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive; + } else { + decodeFn = decodeBaseline; + } + + var mcu = 0, marker; + var mcuExpected; + if (componentsLength == 1) { + mcuExpected = components[0].blocksPerLine * components[0].blocksPerColumn; + } else { + mcuExpected = mcusPerLine * frame.mcusPerColumn; + } + if (!resetInterval) resetInterval = mcuExpected; + + var h, v; + while (mcu < mcuExpected) { + // reset interval stuff + for (i = 0; i < componentsLength; i++) + components[i].pred = 0; + eobrun = 0; + + if (componentsLength == 1) { + component = components[0]; + for (n = 0; n < resetInterval; n++) { + decodeBlock(component, decodeFn, mcu); + mcu++; + } + } else { + for (n = 0; n < resetInterval; n++) { + for (i = 0; i < componentsLength; i++) { + component = components[i]; + h = component.h; + v = component.v; + for (j = 0; j < v; j++) { + for (k = 0; k < h; k++) { + decodeMcu(component, decodeFn, mcu, j, k); + } + } + } + mcu++; + + // If we've reached our expected MCU's, stop decoding + if (mcu === mcuExpected) break; + } + } + + // find marker + bitsCount = 0; + marker = (data[offset] << 8) | data[offset + 1]; + if (marker < 0xFF00) { + throw "marker was not found"; + } + + if (marker >= 0xFFD0 && marker <= 0xFFD7) { // RSTx + offset += 2; + } + else + break; + } + + return offset - startOffset; + } + + function buildComponentData(frame, component) { + var lines = []; + var blocksPerLine = component.blocksPerLine; + var blocksPerColumn = component.blocksPerColumn; + var samplesPerLine = blocksPerLine << 3; + var R = new Int32Array(64), r = new Uint8Array(64); + + // A port of poppler's IDCT method which in turn is taken from: + // Christoph Loeffler, Adriaan Ligtenberg, George S. Moschytz, + // "Practical Fast 1-D DCT Algorithms with 11 Multiplications", + // IEEE Intl. Conf. on Acoustics, Speech & Signal Processing, 1989, + // 988-991. + function quantizeAndInverse(zz, dataOut, dataIn) { + var qt = component.quantizationTable; + var v0, v1, v2, v3, v4, v5, v6, v7, t; + var p = dataIn; + var i; + + // dequant + for (i = 0; i < 64; i++) + p[i] = zz[i] * qt[i]; + + // inverse DCT on rows + for (i = 0; i < 8; ++i) { + var row = 8 * i; + + // check for all-zero AC coefficients + if (p[1 + row] == 0 && p[2 + row] == 0 && p[3 + row] == 0 && + p[4 + row] == 0 && p[5 + row] == 0 && p[6 + row] == 0 && + p[7 + row] == 0) { + t = (dctSqrt2 * p[0 + row] + 512) >> 10; + p[0 + row] = t; + p[1 + row] = t; + p[2 + row] = t; + p[3 + row] = t; + p[4 + row] = t; + p[5 + row] = t; + p[6 + row] = t; + p[7 + row] = t; + continue; + } + + // stage 4 + v0 = (dctSqrt2 * p[0 + row] + 128) >> 8; + v1 = (dctSqrt2 * p[4 + row] + 128) >> 8; + v2 = p[2 + row]; + v3 = p[6 + row]; + v4 = (dctSqrt1d2 * (p[1 + row] - p[7 + row]) + 128) >> 8; + v7 = (dctSqrt1d2 * (p[1 + row] + p[7 + row]) + 128) >> 8; + v5 = p[3 + row] << 4; + v6 = p[5 + row] << 4; + + // stage 3 + t = (v0 - v1+ 1) >> 1; + v0 = (v0 + v1 + 1) >> 1; + v1 = t; + t = (v2 * dctSin6 + v3 * dctCos6 + 128) >> 8; + v2 = (v2 * dctCos6 - v3 * dctSin6 + 128) >> 8; + v3 = t; + t = (v4 - v6 + 1) >> 1; + v4 = (v4 + v6 + 1) >> 1; + v6 = t; + t = (v7 + v5 + 1) >> 1; + v5 = (v7 - v5 + 1) >> 1; + v7 = t; + + // stage 2 + t = (v0 - v3 + 1) >> 1; + v0 = (v0 + v3 + 1) >> 1; + v3 = t; + t = (v1 - v2 + 1) >> 1; + v1 = (v1 + v2 + 1) >> 1; + v2 = t; + t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; + v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; + v7 = t; + t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; + v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; + v6 = t; + + // stage 1 + p[0 + row] = v0 + v7; + p[7 + row] = v0 - v7; + p[1 + row] = v1 + v6; + p[6 + row] = v1 - v6; + p[2 + row] = v2 + v5; + p[5 + row] = v2 - v5; + p[3 + row] = v3 + v4; + p[4 + row] = v3 - v4; + } + + // inverse DCT on columns + for (i = 0; i < 8; ++i) { + var col = i; + + // check for all-zero AC coefficients + if (p[1*8 + col] == 0 && p[2*8 + col] == 0 && p[3*8 + col] == 0 && + p[4*8 + col] == 0 && p[5*8 + col] == 0 && p[6*8 + col] == 0 && + p[7*8 + col] == 0) { + t = (dctSqrt2 * dataIn[i+0] + 8192) >> 14; + p[0*8 + col] = t; + p[1*8 + col] = t; + p[2*8 + col] = t; + p[3*8 + col] = t; + p[4*8 + col] = t; + p[5*8 + col] = t; + p[6*8 + col] = t; + p[7*8 + col] = t; + continue; + } + + // stage 4 + v0 = (dctSqrt2 * p[0*8 + col] + 2048) >> 12; + v1 = (dctSqrt2 * p[4*8 + col] + 2048) >> 12; + v2 = p[2*8 + col]; + v3 = p[6*8 + col]; + v4 = (dctSqrt1d2 * (p[1*8 + col] - p[7*8 + col]) + 2048) >> 12; + v7 = (dctSqrt1d2 * (p[1*8 + col] + p[7*8 + col]) + 2048) >> 12; + v5 = p[3*8 + col]; + v6 = p[5*8 + col]; + + // stage 3 + t = (v0 - v1 + 1) >> 1; + v0 = (v0 + v1 + 1) >> 1; + v1 = t; + t = (v2 * dctSin6 + v3 * dctCos6 + 2048) >> 12; + v2 = (v2 * dctCos6 - v3 * dctSin6 + 2048) >> 12; + v3 = t; + t = (v4 - v6 + 1) >> 1; + v4 = (v4 + v6 + 1) >> 1; + v6 = t; + t = (v7 + v5 + 1) >> 1; + v5 = (v7 - v5 + 1) >> 1; + v7 = t; + + // stage 2 + t = (v0 - v3 + 1) >> 1; + v0 = (v0 + v3 + 1) >> 1; + v3 = t; + t = (v1 - v2 + 1) >> 1; + v1 = (v1 + v2 + 1) >> 1; + v2 = t; + t = (v4 * dctSin3 + v7 * dctCos3 + 2048) >> 12; + v4 = (v4 * dctCos3 - v7 * dctSin3 + 2048) >> 12; + v7 = t; + t = (v5 * dctSin1 + v6 * dctCos1 + 2048) >> 12; + v5 = (v5 * dctCos1 - v6 * dctSin1 + 2048) >> 12; + v6 = t; + + // stage 1 + p[0*8 + col] = v0 + v7; + p[7*8 + col] = v0 - v7; + p[1*8 + col] = v1 + v6; + p[6*8 + col] = v1 - v6; + p[2*8 + col] = v2 + v5; + p[5*8 + col] = v2 - v5; + p[3*8 + col] = v3 + v4; + p[4*8 + col] = v3 - v4; + } + + // convert to 8-bit integers + for (i = 0; i < 64; ++i) { + var sample = 128 + ((p[i] + 8) >> 4); + dataOut[i] = sample < 0 ? 0 : sample > 0xFF ? 0xFF : sample; + } + } + + var i, j; + for (var blockRow = 0; blockRow < blocksPerColumn; blockRow++) { + var scanLine = blockRow << 3; + for (i = 0; i < 8; i++) + lines.push(new Uint8Array(samplesPerLine)); + for (var blockCol = 0; blockCol < blocksPerLine; blockCol++) { + quantizeAndInverse(component.blocks[blockRow][blockCol], r, R); + + var offset = 0, sample = blockCol << 3; + for (j = 0; j < 8; j++) { + var line = lines[scanLine + j]; + for (i = 0; i < 8; i++) + line[sample + i] = r[offset++]; + } + } + } + return lines; + } + + function clampTo8bit(a) { + return a < 0 ? 0 : a > 255 ? 255 : a; + } + + constructor.prototype = { + load: function load(path) { + var xhr = new XMLHttpRequest(); + xhr.open("GET", path, true); + xhr.responseType = "arraybuffer"; + xhr.onload = (function() { + // TODO catch parse error + var data = new Uint8Array(xhr.response || xhr.mozResponseArrayBuffer); + this.parse(data); + if (this.onload) + this.onload(); + }).bind(this); + xhr.send(null); + }, + parse: function parse(data) { + var offset = 0, length = data.length; + function readUint16() { + var value = (data[offset] << 8) | data[offset + 1]; + offset += 2; + return value; + } + function readDataBlock() { + var length = readUint16(); + var array = data.subarray(offset, offset + length - 2); + offset += array.length; + return array; + } + function prepareComponents(frame) { + var maxH = 0, maxV = 0; + var component, componentId; + for (componentId in frame.components) { + if (frame.components.hasOwnProperty(componentId)) { + component = frame.components[componentId]; + if (maxH < component.h) maxH = component.h; + if (maxV < component.v) maxV = component.v; + } + } + var mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / maxH); + var mcusPerColumn = Math.ceil(frame.scanLines / 8 / maxV); + for (componentId in frame.components) { + if (frame.components.hasOwnProperty(componentId)) { + component = frame.components[componentId]; + var blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * component.h / maxH); + var blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * component.v / maxV); + var blocksPerLineForMcu = mcusPerLine * component.h; + var blocksPerColumnForMcu = mcusPerColumn * component.v; + var blocks = []; + for (var i = 0; i < blocksPerColumnForMcu; i++) { + var row = []; + for (var j = 0; j < blocksPerLineForMcu; j++) + row.push(new Int32Array(64)); + blocks.push(row); + } + component.blocksPerLine = blocksPerLine; + component.blocksPerColumn = blocksPerColumn; + component.blocks = blocks; + } + } + frame.maxH = maxH; + frame.maxV = maxV; + frame.mcusPerLine = mcusPerLine; + frame.mcusPerColumn = mcusPerColumn; + } + var jfif = null; + var adobe = null; + var pixels = null; + var frame, resetInterval; + var quantizationTables = [], frames = []; + var huffmanTablesAC = [], huffmanTablesDC = []; + var fileMarker = readUint16(); + if (fileMarker != 0xFFD8) { // SOI (Start of Image) + throw "SOI not found"; + } + + fileMarker = readUint16(); + while (fileMarker != 0xFFD9) { // EOI (End of image) + var i, j, l; + switch(fileMarker) { + case 0xFF00: break; + case 0xFFE0: // APP0 (Application Specific) + case 0xFFE1: // APP1 + case 0xFFE2: // APP2 + case 0xFFE3: // APP3 + case 0xFFE4: // APP4 + case 0xFFE5: // APP5 + case 0xFFE6: // APP6 + case 0xFFE7: // APP7 + case 0xFFE8: // APP8 + case 0xFFE9: // APP9 + case 0xFFEA: // APP10 + case 0xFFEB: // APP11 + case 0xFFEC: // APP12 + case 0xFFED: // APP13 + case 0xFFEE: // APP14 + case 0xFFEF: // APP15 + case 0xFFFE: // COM (Comment) + var appData = readDataBlock(); + + if (fileMarker === 0xFFE0) { + if (appData[0] === 0x4A && appData[1] === 0x46 && appData[2] === 0x49 && + appData[3] === 0x46 && appData[4] === 0) { // 'JFIF\x00' + jfif = { + version: { major: appData[5], minor: appData[6] }, + densityUnits: appData[7], + xDensity: (appData[8] << 8) | appData[9], + yDensity: (appData[10] << 8) | appData[11], + thumbWidth: appData[12], + thumbHeight: appData[13], + thumbData: appData.subarray(14, 14 + 3 * appData[12] * appData[13]) + }; + } + } + // TODO APP1 - Exif + if (fileMarker === 0xFFEE) { + if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6F && + appData[3] === 0x62 && appData[4] === 0x65 && appData[5] === 0) { // 'Adobe\x00' + adobe = { + version: appData[6], + flags0: (appData[7] << 8) | appData[8], + flags1: (appData[9] << 8) | appData[10], + transformCode: appData[11] + }; + } + } + break; + + case 0xFFDB: // DQT (Define Quantization Tables) + var quantizationTablesLength = readUint16(); + var quantizationTablesEnd = quantizationTablesLength + offset - 2; + while (offset < quantizationTablesEnd) { + var quantizationTableSpec = data[offset++]; + var tableData = new Int32Array(64); + if ((quantizationTableSpec >> 4) === 0) { // 8 bit values + for (j = 0; j < 64; j++) { + var z = dctZigZag[j]; + tableData[z] = data[offset++]; + } + } else if ((quantizationTableSpec >> 4) === 1) { //16 bit + for (j = 0; j < 64; j++) { + var z = dctZigZag[j]; + tableData[z] = readUint16(); + } + } else + throw "DQT: invalid table spec"; + quantizationTables[quantizationTableSpec & 15] = tableData; + } + break; + + case 0xFFC0: // SOF0 (Start of Frame, Baseline DCT) + case 0xFFC1: // SOF1 (Start of Frame, Extended DCT) + case 0xFFC2: // SOF2 (Start of Frame, Progressive DCT) + readUint16(); // skip data length + frame = {}; + frame.extended = (fileMarker === 0xFFC1); + frame.progressive = (fileMarker === 0xFFC2); + frame.precision = data[offset++]; + frame.scanLines = readUint16(); + frame.samplesPerLine = readUint16(); + frame.components = {}; + frame.componentsOrder = []; + var componentsCount = data[offset++], componentId; + var maxH = 0, maxV = 0; + for (i = 0; i < componentsCount; i++) { + componentId = data[offset]; + var h = data[offset + 1] >> 4; + var v = data[offset + 1] & 15; + var qId = data[offset + 2]; + frame.componentsOrder.push(componentId); + frame.components[componentId] = { + h: h, + v: v, + quantizationTable: quantizationTables[qId] + }; + offset += 3; + } + prepareComponents(frame); + frames.push(frame); + break; + + case 0xFFC4: // DHT (Define Huffman Tables) + var huffmanLength = readUint16(); + for (i = 2; i < huffmanLength;) { + var huffmanTableSpec = data[offset++]; + var codeLengths = new Uint8Array(16); + var codeLengthSum = 0; + for (j = 0; j < 16; j++, offset++) + codeLengthSum += (codeLengths[j] = data[offset]); + var huffmanValues = new Uint8Array(codeLengthSum); + for (j = 0; j < codeLengthSum; j++, offset++) + huffmanValues[j] = data[offset]; + i += 17 + codeLengthSum; + + ((huffmanTableSpec >> 4) === 0 ? + huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = + buildHuffmanTable(codeLengths, huffmanValues); + } + break; + + case 0xFFDD: // DRI (Define Restart Interval) + readUint16(); // skip data length + resetInterval = readUint16(); + break; + + case 0xFFDA: // SOS (Start of Scan) + var scanLength = readUint16(); + var selectorsCount = data[offset++]; + var components = [], component; + for (i = 0; i < selectorsCount; i++) { + component = frame.components[data[offset++]]; + var tableSpec = data[offset++]; + component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4]; + component.huffmanTableAC = huffmanTablesAC[tableSpec & 15]; + components.push(component); + } + var spectralStart = data[offset++]; + var spectralEnd = data[offset++]; + var successiveApproximation = data[offset++]; + var processed = decodeScan(data, offset, + frame, components, resetInterval, + spectralStart, spectralEnd, + successiveApproximation >> 4, successiveApproximation & 15); + offset += processed; + break; + default: + if (data[offset - 3] == 0xFF && + data[offset - 2] >= 0xC0 && data[offset - 2] <= 0xFE) { + // could be incorrect encoding -- last 0xFF byte of the previous + // block was eaten by the encoder + offset -= 3; + break; + } + throw "unknown JPEG marker " + fileMarker.toString(16); + } + fileMarker = readUint16(); + } + if (frames.length != 1) + throw "only single frame JPEGs supported"; + + this.width = frame.samplesPerLine; + this.height = frame.scanLines; + this.jfif = jfif; + this.adobe = adobe; + this.components = []; + for (var i = 0; i < frame.componentsOrder.length; i++) { + var component = frame.components[frame.componentsOrder[i]]; + this.components.push({ + lines: buildComponentData(frame, component), + scaleX: component.h / frame.maxH, + scaleY: component.v / frame.maxV + }); + } + }, + getData: function getData(width, height) { + var scaleX = this.width / width, scaleY = this.height / height; + + var component1, component2, component3, component4; + var component1Line, component2Line, component3Line, component4Line; + var x, y; + var offset = 0; + var Y, Cb, Cr, K, C, M, Ye, R, G, B; + var colorTransform; + var dataLength = width * height * this.components.length; + var data = new Uint8Array(dataLength); + switch (this.components.length) { + case 1: + component1 = this.components[0]; + for (y = 0; y < height; y++) { + component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; + for (x = 0; x < width; x++) { + Y = component1Line[0 | (x * component1.scaleX * scaleX)]; + + data[offset++] = Y; + } + } + break; + case 2: + // PDF might compress two component data in custom colorspace + component1 = this.components[0]; + component2 = this.components[1]; + for (y = 0; y < height; y++) { + component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; + component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; + for (x = 0; x < width; x++) { + Y = component1Line[0 | (x * component1.scaleX * scaleX)]; + data[offset++] = Y; + Y = component2Line[0 | (x * component2.scaleX * scaleX)]; + data[offset++] = Y; + } + } + break; + case 3: + // The default transform for three components is true + colorTransform = true; + // The adobe transform marker overrides any previous setting + if (this.adobe && this.adobe.transformCode) + colorTransform = true; + else if (typeof this.colorTransform !== 'undefined') + colorTransform = !!this.colorTransform; + + component1 = this.components[0]; + component2 = this.components[1]; + component3 = this.components[2]; + for (y = 0; y < height; y++) { + component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; + component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; + component3Line = component3.lines[0 | (y * component3.scaleY * scaleY)]; + for (x = 0; x < width; x++) { + if (!colorTransform) { + R = component1Line[0 | (x * component1.scaleX * scaleX)]; + G = component2Line[0 | (x * component2.scaleX * scaleX)]; + B = component3Line[0 | (x * component3.scaleX * scaleX)]; + } else { + Y = component1Line[0 | (x * component1.scaleX * scaleX)]; + Cb = component2Line[0 | (x * component2.scaleX * scaleX)]; + Cr = component3Line[0 | (x * component3.scaleX * scaleX)]; + + R = clampTo8bit(Y + 1.402 * (Cr - 128)); + G = clampTo8bit(Y - 0.3441363 * (Cb - 128) - 0.71413636 * (Cr - 128)); + B = clampTo8bit(Y + 1.772 * (Cb - 128)); + } + + data[offset++] = R; + data[offset++] = G; + data[offset++] = B; + } + } + break; + case 4: + if (!this.adobe) + throw 'Unsupported color mode (4 components)'; + // The default transform for four components is false + colorTransform = false; + // The adobe transform marker overrides any previous setting + if (this.adobe && this.adobe.transformCode) + colorTransform = true; + else if (typeof this.colorTransform !== 'undefined') + colorTransform = !!this.colorTransform; + + component1 = this.components[0]; + component2 = this.components[1]; + component3 = this.components[2]; + component4 = this.components[3]; + for (y = 0; y < height; y++) { + component1Line = component1.lines[0 | (y * component1.scaleY * scaleY)]; + component2Line = component2.lines[0 | (y * component2.scaleY * scaleY)]; + component3Line = component3.lines[0 | (y * component3.scaleY * scaleY)]; + component4Line = component4.lines[0 | (y * component4.scaleY * scaleY)]; + for (x = 0; x < width; x++) { + if (!colorTransform) { + C = component1Line[0 | (x * component1.scaleX * scaleX)]; + M = component2Line[0 | (x * component2.scaleX * scaleX)]; + Ye = component3Line[0 | (x * component3.scaleX * scaleX)]; + K = component4Line[0 | (x * component4.scaleX * scaleX)]; + } else { + Y = component1Line[0 | (x * component1.scaleX * scaleX)]; + Cb = component2Line[0 | (x * component2.scaleX * scaleX)]; + Cr = component3Line[0 | (x * component3.scaleX * scaleX)]; + K = component4Line[0 | (x * component4.scaleX * scaleX)]; + + C = 255 - clampTo8bit(Y + 1.402 * (Cr - 128)); + M = 255 - clampTo8bit(Y - 0.3441363 * (Cb - 128) - 0.71413636 * (Cr - 128)); + Ye = 255 - clampTo8bit(Y + 1.772 * (Cb - 128)); + } + data[offset++] = C; + data[offset++] = M; + data[offset++] = Ye; + data[offset++] = K; + } + } + break; + default: + throw 'Unsupported color mode'; + } + return data; + }, + copyToImageData: function copyToImageData(imageData) { + var width = imageData.width, height = imageData.height; + var imageDataArray = imageData.data; + var data = this.getData(width, height); + var i = 0, j = 0, x, y; + var Y, K, C, M, R, G, B; + switch (this.components.length) { + case 1: + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + Y = data[i++]; + + imageDataArray[j++] = Y; + imageDataArray[j++] = Y; + imageDataArray[j++] = Y; + imageDataArray[j++] = 255; + } + } + break; + case 3: + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + R = data[i++]; + G = data[i++]; + B = data[i++]; + + imageDataArray[j++] = R; + imageDataArray[j++] = G; + imageDataArray[j++] = B; + imageDataArray[j++] = 255; + } + } + break; + case 4: + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + C = data[i++]; + M = data[i++]; + Y = data[i++]; + K = data[i++]; + + R = 255 - clampTo8bit(C * (1 - K / 255) + K); + G = 255 - clampTo8bit(M * (1 - K / 255) + K); + B = 255 - clampTo8bit(Y * (1 - K / 255) + K); + + imageDataArray[j++] = R; + imageDataArray[j++] = G; + imageDataArray[j++] = B; + imageDataArray[j++] = 255; + } + } + break; + default: + throw 'Unsupported color mode'; + } + } + }; + + return constructor; +})(); +module.exports = decode; + +function decode(jpegData) { + var arr = new Uint8Array(jpegData); + var decoder = new JpegImage(); + decoder.parse(arr); + var data = decoder.getData(decoder.width, decoder.height); + var buf = new Buffer(decoder.width * decoder.height * 4); + var n = 0; + for (var i = 0; i < buf.length; i++) { + buf[i + (i/3 | 0)] = data[n++]; + if (i % 4 == 3) buf[i] = 255; + } + return { + data: buf, + width: decoder.width, + height: decoder.height + }; +} + +}).call(this,require("buffer").Buffer) +},{"buffer":47}],137:[function(require,module,exports){ +arguments[4][69][0].apply(exports,arguments) +},{"buffer":47,"dup":69}],138:[function(require,module,exports){ +(function (Buffer){ +'use strict' + +var ContentStream = require('contentstream') +var GifEncoder = require('gif-encoder') +var jpegJs = require('jpeg-js') +var PNG = require('pngjs-nozlib').PNG +var ndarray = require('ndarray') +var ops = require('ndarray-ops') +var through = require('through') + +function handleData (array, data, frame) { + var i, j, ptr = 0, c + if (array.shape.length === 4) { + return handleData(array.pick(frame), data, 0) + } else if (array.shape.length === 3) { + if (array.shape[2] === 3) { + ops.assign( + ndarray(data, + [array.shape[0], array.shape[1], 3], + [4, 4 * array.shape[0], 1]), + array) + ops.assigns( + ndarray(data, + [array.shape[0] * array.shape[1]], + [4], + 3), + 255) + } else if (array.shape[2] === 4) { + ops.assign( + ndarray(data, + [array.shape[0], array.shape[1], 4], + [4, array.shape[0] * 4, 1]), + array) + } else if (array.shape[2] === 1) { + ops.assign( + ndarray(data, + [array.shape[0], array.shape[1], 3], + [4, 4 * array.shape[0], 1]), + ndarray(array.data, + [array.shape[0], array.shape[1], 3], + [array.stride[0], array.stride[1], 0], + array.offset)) + ops.assigns( + ndarray(data, + [array.shape[0] * array.shape[1]], + [4], + 3), + 255) + } else { + return new Error('Incompatible array shape') + } + } else if (array.shape.length === 2) { + ops.assign( + ndarray(data, + [array.shape[0], array.shape[1], 3], + [4, 4 * array.shape[0], 1]), + ndarray(array.data, + [array.shape[0], array.shape[1], 3], + [array.stride[0], array.stride[1], 0], + array.offset)) + ops.assigns( + ndarray(data, + [array.shape[0] * array.shape[1]], + [4], + 3), + 255) + } else { + return new Error('Incompatible array shape') + } + return data +} + +function haderror (err) { + var result = through() + result.emit('error', err) + return result +} + +module.exports = function savePixels (array, type, options) { + options = options || {} + switch (type.toUpperCase()) { + case 'JPG': + case '.JPG': + case 'JPEG': + case '.JPEG': + case 'JPE': + case '.JPE': + var width = array.shape[0] + var height = array.shape[1] + var data = new Buffer(width * height * 4) + data = handleData(array, data) + var rawImageData = { + data: data, + width: width, + height: height + } + var jpegImageData = jpegJs.encode(rawImageData, options.quality) + return new ContentStream(jpegImageData.data) + + case 'GIF': + case '.GIF': + var frames = array.shape.length === 4 ? array.shape[0] : 1 + var width = array.shape.length === 4 ? array.shape[1] : array.shape[0] + var height = array.shape.length === 4 ? array.shape[2] : array.shape[1] + var data = new Buffer(width * height * 4) + var gif = new GifEncoder(width, height) + gif.writeHeader() + for (var i = 0; i < frames; i++) { + data = handleData(array, data, i) + gif.addFrame(data) + } + gif.finish() + return gif + + case 'PNG': + case '.PNG': + var png = new PNG({ + width: array.shape[0], + height: array.shape[1] + }) + var data = handleData(array, png.data) + if (typeof data === 'Error') return haderror(data) + png.data = data + return png.pack() + + case 'CANVAS': + var canvas = document.createElement('canvas') + var context = canvas.getContext('2d') + canvas.width = array.shape[0] + canvas.height = array.shape[1] + var imageData = context.getImageData(0, 0, canvas.width, canvas.height) + var data = imageData.data + data = handleData(array, data) + if (typeof data === 'Error') return haderror(data) + context.putImageData(imageData, 0, 0) + return canvas + + default: + return haderror(new Error('Unsupported file type: ' + type)) + } +} + +}).call(this,require("buffer").Buffer) +},{"buffer":47,"contentstream":7,"gif-encoder":31,"jpeg-js":135,"ndarray":84,"ndarray-ops":81,"pngjs-nozlib":115,"through":141}],139:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +module.exports = Stream; + +var EE = require('events').EventEmitter; +var inherits = require('inherits'); + +inherits(Stream, EE); +Stream.Readable = require('readable-stream/readable.js'); +Stream.Writable = require('readable-stream/writable.js'); +Stream.Duplex = require('readable-stream/duplex.js'); +Stream.Transform = require('readable-stream/transform.js'); +Stream.PassThrough = require('readable-stream/passthrough.js'); + +// Backwards-compat with node 0.4.x +Stream.Stream = Stream; + + + +// old-style streams. Note that the pipe method (the only relevant +// part of this class) is overridden in the Readable class. + +function Stream() { + EE.call(this); +} + +Stream.prototype.pipe = function(dest, options) { + var source = this; + + function ondata(chunk) { + if (dest.writable) { + if (false === dest.write(chunk) && source.pause) { + source.pause(); + } + } + } + + source.on('data', ondata); + + function ondrain() { + if (source.readable && source.resume) { + source.resume(); + } + } + + dest.on('drain', ondrain); + + // If the 'end' option is not supplied, dest.end() will be called when + // source gets the 'end' or 'close' events. Only dest.end() once. + if (!dest._isStdio && (!options || options.end !== false)) { + source.on('end', onend); + source.on('close', onclose); + } + + var didOnEnd = false; + function onend() { + if (didOnEnd) return; + didOnEnd = true; + + dest.end(); + } + + + function onclose() { + if (didOnEnd) return; + didOnEnd = true; + + if (typeof dest.destroy === 'function') dest.destroy(); + } + + // don't leave dangling pipes when there are errors. + function onerror(er) { + cleanup(); + if (EE.listenerCount(this, 'error') === 0) { + throw er; // Unhandled stream error in pipe. + } + } + + source.on('error', onerror); + dest.on('error', onerror); + + // remove all the event listeners that were added. + function cleanup() { + source.removeListener('data', ondata); + dest.removeListener('drain', ondrain); + + source.removeListener('end', onend); + source.removeListener('close', onclose); + + source.removeListener('error', onerror); + dest.removeListener('error', onerror); + + source.removeListener('end', cleanup); + source.removeListener('close', cleanup); + + dest.removeListener('close', cleanup); + } + + source.on('end', cleanup); + source.on('close', cleanup); + + dest.on('close', cleanup); + + dest.emit('pipe', source); + + // Allow for unix-like usage: A.pipe(B).pipe(C) + return dest; +}; + +},{"events":48,"inherits":70,"readable-stream/duplex.js":118,"readable-stream/passthrough.js":130,"readable-stream/readable.js":131,"readable-stream/transform.js":132,"readable-stream/writable.js":133}],140:[function(require,module,exports){ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var Buffer = require('buffer').Buffer; + +var isBufferEncoding = Buffer.isEncoding + || function(encoding) { + switch (encoding && encoding.toLowerCase()) { + case 'hex': case 'utf8': case 'utf-8': case 'ascii': case 'binary': case 'base64': case 'ucs2': case 'ucs-2': case 'utf16le': case 'utf-16le': case 'raw': return true; + default: return false; + } + } + + +function assertEncoding(encoding) { + if (encoding && !isBufferEncoding(encoding)) { + throw new Error('Unknown encoding: ' + encoding); + } +} + +// StringDecoder provides an interface for efficiently splitting a series of +// buffers into a series of JS strings without breaking apart multi-byte +// characters. CESU-8 is handled as part of the UTF-8 encoding. +// +// @TODO Handling all encodings inside a single object makes it very difficult +// to reason about this code, so it should be split up in the future. +// @TODO There should be a utf8-strict encoding that rejects invalid UTF-8 code +// points as used by CESU-8. +var StringDecoder = exports.StringDecoder = function(encoding) { + this.encoding = (encoding || 'utf8').toLowerCase().replace(/[-_]/, ''); + assertEncoding(encoding); + switch (this.encoding) { + case 'utf8': + // CESU-8 represents each of Surrogate Pair by 3-bytes + this.surrogateSize = 3; + break; + case 'ucs2': + case 'utf16le': + // UTF-16 represents each of Surrogate Pair by 2-bytes + this.surrogateSize = 2; + this.detectIncompleteChar = utf16DetectIncompleteChar; + break; + case 'base64': + // Base-64 stores 3 bytes in 4 chars, and pads the remainder. + this.surrogateSize = 3; + this.detectIncompleteChar = base64DetectIncompleteChar; + break; + default: + this.write = passThroughWrite; + return; + } + + // Enough space to store all bytes of a single character. UTF-8 needs 4 + // bytes, but CESU-8 may require up to 6 (3 bytes per surrogate). + this.charBuffer = new Buffer(6); + // Number of bytes received for the current incomplete multi-byte character. + this.charReceived = 0; + // Number of bytes expected for the current incomplete multi-byte character. + this.charLength = 0; +}; + + +// write decodes the given buffer and returns it as JS string that is +// guaranteed to not contain any partial multi-byte characters. Any partial +// character found at the end of the buffer is buffered up, and will be +// returned when calling write again with the remaining bytes. +// +// Note: Converting a Buffer containing an orphan surrogate to a String +// currently works, but converting a String to a Buffer (via `new Buffer`, or +// Buffer#write) will replace incomplete surrogates with the unicode +// replacement character. See https://codereview.chromium.org/121173009/ . +StringDecoder.prototype.write = function(buffer) { + var charStr = ''; + // if our last write ended with an incomplete multibyte character + while (this.charLength) { + // determine how many remaining bytes this buffer has to offer for this char + var available = (buffer.length >= this.charLength - this.charReceived) ? + this.charLength - this.charReceived : + buffer.length; + + // add the new bytes to the char buffer + buffer.copy(this.charBuffer, this.charReceived, 0, available); + this.charReceived += available; + + if (this.charReceived < this.charLength) { + // still not enough chars in this buffer? wait for more ... + return ''; + } + + // remove bytes belonging to the current character from the buffer + buffer = buffer.slice(available, buffer.length); + + // get the character that was split + charStr = this.charBuffer.slice(0, this.charLength).toString(this.encoding); + + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + var charCode = charStr.charCodeAt(charStr.length - 1); + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + this.charLength += this.surrogateSize; + charStr = ''; + continue; + } + this.charReceived = this.charLength = 0; + + // if there are no more bytes in this buffer, just emit our char + if (buffer.length === 0) { + return charStr; + } + break; + } + + // determine and set charLength / charReceived + this.detectIncompleteChar(buffer); + + var end = buffer.length; + if (this.charLength) { + // buffer the incomplete character bytes we got + buffer.copy(this.charBuffer, 0, buffer.length - this.charReceived, end); + end -= this.charReceived; + } + + charStr += buffer.toString(this.encoding, 0, end); + + var end = charStr.length - 1; + var charCode = charStr.charCodeAt(end); + // CESU-8: lead surrogate (D800-DBFF) is also the incomplete character + if (charCode >= 0xD800 && charCode <= 0xDBFF) { + var size = this.surrogateSize; + this.charLength += size; + this.charReceived += size; + this.charBuffer.copy(this.charBuffer, size, 0, size); + buffer.copy(this.charBuffer, 0, 0, size); + return charStr.substring(0, end); + } + + // or just emit the charStr + return charStr; +}; + +// detectIncompleteChar determines if there is an incomplete UTF-8 character at +// the end of the given buffer. If so, it sets this.charLength to the byte +// length that character, and sets this.charReceived to the number of bytes +// that are available for this character. +StringDecoder.prototype.detectIncompleteChar = function(buffer) { + // determine how many bytes we have to check at the end of this buffer + var i = (buffer.length >= 3) ? 3 : buffer.length; + + // Figure out if one of the last i bytes of our buffer announces an + // incomplete char. + for (; i > 0; i--) { + var c = buffer[buffer.length - i]; + + // See http://en.wikipedia.org/wiki/UTF-8#Description + + // 110XXXXX + if (i == 1 && c >> 5 == 0x06) { + this.charLength = 2; + break; + } + + // 1110XXXX + if (i <= 2 && c >> 4 == 0x0E) { + this.charLength = 3; + break; + } + + // 11110XXX + if (i <= 3 && c >> 3 == 0x1E) { + this.charLength = 4; + break; + } + } + this.charReceived = i; +}; + +StringDecoder.prototype.end = function(buffer) { + var res = ''; + if (buffer && buffer.length) + res = this.write(buffer); + + if (this.charReceived) { + var cr = this.charReceived; + var buf = this.charBuffer; + var enc = this.encoding; + res += buf.slice(0, cr).toString(enc); + } + + return res; +}; + +function passThroughWrite(buffer) { + return buffer.toString(this.encoding); +} + +function utf16DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 2; + this.charLength = this.charReceived ? 2 : 0; +} + +function base64DetectIncompleteChar(buffer) { + this.charReceived = buffer.length % 3; + this.charLength = this.charReceived ? 3 : 0; +} + +},{"buffer":47}],141:[function(require,module,exports){ (function (process){ var Stream = require('stream') @@ -63214,7 +63145,7 @@ function through (write, end, opts) { }).call(this,require('_process')) -},{"_process":114,"stream":128}],144:[function(require,module,exports){ +},{"_process":117,"stream":139}],142:[function(require,module,exports){ (function (setImmediate,clearImmediate){ var nextTick = require('process/browser.js').nextTick; var apply = Function.prototype.apply; @@ -63293,7 +63224,7 @@ exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : delete immediateIds[id]; }; }).call(this,require("timers").setImmediate,require("timers").clearImmediate) -},{"process/browser.js":114,"timers":144}],145:[function(require,module,exports){ +},{"process/browser.js":117,"timers":142}],143:[function(require,module,exports){ exports.isatty = function () { return false; }; function ReadStream() { @@ -63306,7 +63237,7 @@ function WriteStream() { } exports.WriteStream = WriteStream; -},{}],146:[function(require,module,exports){ +},{}],144:[function(require,module,exports){ (function (global,Buffer){ 'use strict' @@ -63523,7 +63454,7 @@ exports.clearCache = function clearCache() { } } }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {},require("buffer").Buffer) -},{"bit-twiddle":6,"buffer":12,"dup":22}],147:[function(require,module,exports){ +},{"bit-twiddle":2,"buffer":47,"dup":20}],145:[function(require,module,exports){ // Underscore.js 1.4.4 // http://underscorejs.org // (c) 2009-2013 Jeremy Ashkenas, DocumentCloud Inc. @@ -64751,7 +64682,7 @@ exports.clearCache = function clearCache() { }).call(this); -},{}],148:[function(require,module,exports){ +},{}],146:[function(require,module,exports){ "use strict" function unique_pred(list, compare) { @@ -64810,7 +64741,7 @@ function unique(list, compare, sorted) { module.exports = unique -},{}],149:[function(require,module,exports){ +},{}],147:[function(require,module,exports){ var mime = require('mime'); var fs = require('fs'); @@ -64820,7 +64751,7 @@ module.exports = function urifyNode (file) { return 'data:' + type + ';base64,' + data; }; -},{"fs":11,"mime":61}],150:[function(require,module,exports){ +},{"fs":46,"mime":76}],148:[function(require,module,exports){ (function (global){ /** @@ -64891,18 +64822,18 @@ function config (name) { } }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) -},{}],151:[function(require,module,exports){ -arguments[4][3][0].apply(exports,arguments) -},{"dup":3}],152:[function(require,module,exports){ -arguments[4][4][0].apply(exports,arguments) -},{"./support/isBuffer":151,"_process":114,"dup":4,"inherits":55}],153:[function(require,module,exports){ +},{}],149:[function(require,module,exports){ +arguments[4][42][0].apply(exports,arguments) +},{"dup":42}],150:[function(require,module,exports){ +arguments[4][43][0].apply(exports,arguments) +},{"./support/isBuffer":149,"_process":117,"dup":43,"inherits":70}],151:[function(require,module,exports){ // add steps to the sequencer function AddStep(_sequencer, image, name, o) { return require('./InsertStep')(_sequencer,image,-1,name,o); } module.exports = AddStep; -},{"./InsertStep":157}],154:[function(require,module,exports){ +},{"./InsertStep":155}],152:[function(require,module,exports){ var fs = require('fs'); var getDirectories = function(rootDir, cb) { fs.readdir(rootDir, function(err, files) { @@ -64977,7 +64908,7 @@ module.exports = function ExportBin(dir = "./output/", ref, basic, filename) { } } -},{"data-uri-to-buffer":21,"fs":11}],155:[function(require,module,exports){ +},{"data-uri-to-buffer":19,"fs":46}],153:[function(require,module,exports){ function objTypeOf(object){ return Object.prototype.toString.call(object).split(" ")[1].slice(0,-1) } @@ -65143,7 +65074,7 @@ function formatInput(args,format,images) { } module.exports = formatInput; -},{}],156:[function(require,module,exports){ +},{}],154:[function(require,module,exports){ if (typeof window !== 'undefined') { isBrowser = true } else { var isBrowser = false } require('./util/getStep.js'); @@ -65613,7 +65544,7 @@ ImageSequencer = function ImageSequencer(options) { } module.exports = ImageSequencer; -},{"./AddStep":153,"./ExportBin":154,"./FormatInput":155,"./InsertStep":157,"./Modules":158,"./ReplaceImage":159,"./Run":160,"./SavedSequences.json":162,"./ui/LoadImage":260,"./ui/SetInputStep":261,"./ui/UserInterface":262,"./util/getStep.js":265,"fs":11}],157:[function(require,module,exports){ +},{"./AddStep":151,"./ExportBin":152,"./FormatInput":153,"./InsertStep":155,"./Modules":156,"./ReplaceImage":157,"./Run":158,"./SavedSequences.json":160,"./ui/LoadImage":254,"./ui/SetInputStep":255,"./ui/UserInterface":256,"./util/getStep.js":259,"fs":46}],155:[function(require,module,exports){ const getStepUtils = require('./util/getStep.js'); // insert one or more steps at a given index in the sequencer @@ -65680,7 +65611,7 @@ function InsertStep(ref, image, index, name, o) { } module.exports = InsertStep; -},{"./util/getStep.js":265}],158:[function(require,module,exports){ +},{"./util/getStep.js":259}],156:[function(require,module,exports){ /* * Core modules and their info files */ @@ -65708,7 +65639,6 @@ module.exports = { 'invert': require('image-sequencer-invert'), 'ndvi': require('./modules/Ndvi'), 'ndvi-colormap': require('./modules/NdviColormap'), - 'paint-bucket': require('./modules/PaintBucket'), 'overlay': require('./modules/Overlay'), 'resize': require('./modules/Resize'), 'rotate': require('./modules/Rotate'), @@ -65716,7 +65646,7 @@ module.exports = { 'white-balance': require('./modules/WhiteBalance') } -},{"./modules/Average":164,"./modules/Blend":167,"./modules/Blur":171,"./modules/Brightness":174,"./modules/Channel":177,"./modules/Colorbar":180,"./modules/Colormap":184,"./modules/Contrast":188,"./modules/Convolution":192,"./modules/Crop":197,"./modules/DecodeQr":200,"./modules/Dither":204,"./modules/DrawRectangle":208,"./modules/Dynamic":211,"./modules/EdgeDetect":215,"./modules/FisheyeGl":218,"./modules/GammaCorrection":221,"./modules/Gradient":224,"./modules/Histogram":227,"./modules/ImportImage":231,"./modules/Ndvi":235,"./modules/NdviColormap":238,"./modules/Overlay":241,"./modules/PaintBucket":245,"./modules/Resize":248,"./modules/Rotate":251,"./modules/Saturation":254,"./modules/WhiteBalance":257,"image-sequencer-invert":46}],159:[function(require,module,exports){ +},{"./modules/Average":162,"./modules/Blend":165,"./modules/Blur":169,"./modules/Brightness":172,"./modules/Channel":175,"./modules/Colorbar":178,"./modules/Colormap":182,"./modules/Contrast":186,"./modules/Convolution":190,"./modules/Crop":195,"./modules/DecodeQr":198,"./modules/Dither":202,"./modules/DrawRectangle":206,"./modules/Dynamic":209,"./modules/EdgeDetect":213,"./modules/FisheyeGl":216,"./modules/GammaCorrection":219,"./modules/Gradient":222,"./modules/Histogram":225,"./modules/ImportImage":229,"./modules/Ndvi":236,"./modules/NdviColormap":232,"./modules/Overlay":239,"./modules/Resize":242,"./modules/Rotate":245,"./modules/Saturation":248,"./modules/WhiteBalance":251,"image-sequencer-invert":61}],157:[function(require,module,exports){ // Uses a given image as input and replaces it with the output. // Works only in the browser. function ReplaceImage(ref,selector,steps,options) { @@ -65777,7 +65707,7 @@ function ReplaceImage(ref,selector,steps,options) { module.exports = ReplaceImage; -},{}],160:[function(require,module,exports){ +},{}],158:[function(require,module,exports){ const getStepUtils = require('./util/getStep.js'); function Run(ref, json_q, callback, ind, progressObj) { @@ -65872,7 +65802,7 @@ function Run(ref, json_q, callback, ind, progressObj) { } module.exports = Run; -},{"./RunToolkit":161,"./util/getStep.js":265}],161:[function(require,module,exports){ +},{"./RunToolkit":159,"./util/getStep.js":259}],159:[function(require,module,exports){ const getPixels = require('get-pixels'); const pixelManipulation = require('./modules/_nomodule/PixelManipulation'); const lodash = require('lodash'); @@ -65887,9 +65817,9 @@ module.exports = function(input) { input.savePixels = savePixels; return input; } -},{"./modules/_nomodule/PixelManipulation":259,"data-uri-to-buffer":21,"get-pixels":32,"lodash":60,"save-pixels":127}],162:[function(require,module,exports){ +},{"./modules/_nomodule/PixelManipulation":253,"data-uri-to-buffer":19,"get-pixels":29,"lodash":75,"save-pixels":138}],160:[function(require,module,exports){ module.exports={"sample":[{"name":"invert","options":{}},{"name":"channel","options":{"channel":"red"}},{"name":"blur","options":{"blur":"5"}}]} -},{}],163:[function(require,module,exports){ +},{}],161:[function(require,module,exports){ /* * Average all pixel colors */ @@ -65967,12 +65897,12 @@ module.exports = function Average(options, UI){ } } -},{"../_nomodule/PixelManipulation.js":259}],164:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],162:[function(require,module,exports){ module.exports = [ require('./Module'), require('./info.json') ] -},{"./Module":163,"./info.json":165}],165:[function(require,module,exports){ +},{"./Module":161,"./info.json":163}],163:[function(require,module,exports){ module.exports={ "name": "Average", "description": "Average all pixel color", @@ -65981,7 +65911,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],166:[function(require,module,exports){ +},{}],164:[function(require,module,exports){ module.exports = function Dynamic(options, UI, util) { options.func = options.func || "function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }"; @@ -66056,9 +65986,9 @@ module.exports = function Dynamic(options, UI, util) { } } -},{"../_nomodule/PixelManipulation.js":259,"get-pixels":32}],167:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":166,"./info.json":168,"dup":164}],168:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"get-pixels":29}],165:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":164,"./info.json":166,"dup":162}],166:[function(require,module,exports){ module.exports={ "name": "Blend", "description": "Blend two chosen image steps with the given function. Defaults to using the red channel from image 1 and the green and blue and alpha channels of image 2. Easier to use interfaces coming soon!", @@ -66077,7 +66007,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],169:[function(require,module,exports){ +},{}],167:[function(require,module,exports){ module.exports = exports = function(pixels, blur) { let kernel = kernelGenerator(blur, 1), oldpix = pixels; kernel = flipKernel(kernel); @@ -66162,7 +66092,7 @@ module.exports = exports = function(pixels, blur) { return result; } } -},{}],170:[function(require,module,exports){ +},{}],168:[function(require,module,exports){ /* * Blur an Image */ @@ -66212,9 +66142,9 @@ module.exports = function Blur(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./Blur":169}],171:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":170,"./info.json":172,"dup":164}],172:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Blur":167}],169:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":168,"./info.json":170,"dup":162}],170:[function(require,module,exports){ module.exports={ "name": "Blur", "description": "Applies a Gaussian blur given by the intensity value", @@ -66231,7 +66161,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],173:[function(require,module,exports){ +},{}],171:[function(require,module,exports){ /* * Changes the Image Brightness */ @@ -66289,9 +66219,9 @@ module.exports = function Brightness(options,UI){ } } -},{"../_nomodule/PixelManipulation.js":259}],174:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":173,"./info.json":175,"dup":164}],175:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],172:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":171,"./info.json":173,"dup":162}],173:[function(require,module,exports){ module.exports={ "name": "Brightness", "description": "Change the brightness of the image by given percent value", @@ -66308,7 +66238,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],176:[function(require,module,exports){ +},{}],174:[function(require,module,exports){ /* * Display only one color channel */ @@ -66358,9 +66288,9 @@ module.exports = function Channel(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259}],177:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":176,"./info.json":178,"dup":164}],178:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],175:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":174,"./info.json":176,"dup":162}],176:[function(require,module,exports){ module.exports={ "name": "Channel", "description": "Displays only one color channel of an image -- default is green", @@ -66375,7 +66305,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],179:[function(require,module,exports){ +},{}],177:[function(require,module,exports){ module.exports = function NdviColormapfunction(options, UI) { options.x = options.x || 0; @@ -66392,9 +66322,9 @@ module.exports = function NdviColormapfunction(options, UI) { isMeta: true } } -},{}],180:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":179,"./info.json":181,"dup":164}],181:[function(require,module,exports){ +},{}],178:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":177,"./info.json":179,"dup":162}],179:[function(require,module,exports){ module.exports={ "name": "Colorbar", "description": "Generates a colorbar to lay over the image", @@ -66429,7 +66359,7 @@ module.exports={ "length": 4, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],182:[function(require,module,exports){ +},{}],180:[function(require,module,exports){ /* * Accepts a value from 0-255 and returns the new color-mapped pixel * from a lookup table, which can be specified as an array of [begin, end] @@ -66627,7 +66557,7 @@ var colormaps = { ]) } -},{}],183:[function(require,module,exports){ +},{}],181:[function(require,module,exports){ module.exports = function Colormap(options,UI) { var output; @@ -66671,9 +66601,9 @@ module.exports = function Colormap(options,UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./Colormap":182}],184:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":183,"./info.json":185,"dup":164}],185:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Colormap":180}],182:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":181,"./info.json":183,"dup":162}],183:[function(require,module,exports){ module.exports={ "name": "Colormap", "description": "Maps brightness values (average of red, green & blue) to a given color lookup table, made up of a set of one more color gradients.\n\nFor example, 'cooler' colors like blue could represent low values, while 'hot' colors like red could represent high values.", @@ -66688,7 +66618,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],186:[function(require,module,exports){ +},{}],184:[function(require,module,exports){ var _ = require('lodash'); module.exports = exports = function(pixels , contrast){ let oldpix = _.cloneDeep(pixels); @@ -66736,7 +66666,7 @@ module.exports = exports = function(pixels , contrast){ } return pixels; } -},{"lodash":60}],187:[function(require,module,exports){ +},{"lodash":75}],185:[function(require,module,exports){ // /* // * Changes the Image Contrast // */ @@ -66787,9 +66717,9 @@ module.exports = function Contrast(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./Contrast":186}],188:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":187,"./info.json":189,"dup":164}],189:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Contrast":184}],186:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":185,"./info.json":187,"dup":162}],187:[function(require,module,exports){ module.exports={ "name": "Contrast", "description": "Change the contrast of the image by given value", @@ -66806,7 +66736,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],190:[function(require,module,exports){ +},{}],188:[function(require,module,exports){ var _ = require('lodash'); module.exports = exports = function(pixels, constantFactor, kernelValues){ let kernel = kernelGenerator(constantFactor, kernelValues), oldpix = _.cloneDeep(pixels); @@ -66878,7 +66808,7 @@ module.exports = exports = function(pixels, constantFactor, kernelValues){ return result; } } -},{"lodash":60}],191:[function(require,module,exports){ +},{"lodash":75}],189:[function(require,module,exports){ module.exports = function Convolution(options, UI) { options.kernelValues = options.kernelValues || '1 1 1 1 1 1 1 1 1'; @@ -66925,9 +66855,9 @@ module.exports = function Convolution(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./Convolution":190}],192:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":191,"./info.json":193,"dup":164}],193:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Convolution":188}],190:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":189,"./info.json":191,"dup":162}],191:[function(require,module,exports){ module.exports={ "name": "Convolution", "description": "Image Convolution using a given 3x3 kernel matrix Read more", @@ -66949,7 +66879,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],194:[function(require,module,exports){ +},{}],192:[function(require,module,exports){ (function (Buffer){ module.exports = function Crop(input,options,callback) { @@ -67006,7 +66936,7 @@ module.exports = function Crop(input,options,callback) { }; }).call(this,require("buffer").Buffer) -},{"buffer":12,"get-pixels":32,"save-pixels":127}],195:[function(require,module,exports){ +},{"buffer":47,"get-pixels":29,"save-pixels":138}],193:[function(require,module,exports){ /* * Image Cropping module * Usage: @@ -67093,7 +67023,7 @@ module.exports = function CropModule(options, UI) { } } -},{"../../util/ParseInputCoordinates":264,"./Crop":194,"./Ui.js":196}],196:[function(require,module,exports){ +},{"../../util/ParseInputCoordinates":258,"./Crop":192,"./Ui.js":194}],194:[function(require,module,exports){ // hide on save module.exports = function CropModuleUi(step, ui) { @@ -67192,9 +67122,9 @@ module.exports = function CropModuleUi(step, ui) { } } -},{}],197:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":195,"./info.json":198,"dup":164}],198:[function(require,module,exports){ +},{}],195:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":193,"./info.json":196,"dup":162}],196:[function(require,module,exports){ module.exports={ "name": "Crop", "description": "Crop image to given x, y, w, h in pixels or % , measured from top left", @@ -67230,7 +67160,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],199:[function(require,module,exports){ +},{}],197:[function(require,module,exports){ /* * Decodes QR from a given image. */ @@ -67273,9 +67203,9 @@ module.exports = function DoNothing(options,UI) { } } -},{"get-pixels":32,"jsqr":59}],200:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":199,"./info.json":201,"dup":164}],201:[function(require,module,exports){ +},{"get-pixels":29,"jsqr":74}],198:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":197,"./info.json":199,"dup":162}],199:[function(require,module,exports){ module.exports={ "name": "Decode QR", "description": "Search for and decode a QR code in the image", @@ -67289,7 +67219,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],202:[function(require,module,exports){ +},{}],200:[function(require,module,exports){ module.exports = function Dither(pixels, type) { type = type || "none"; var bayerThresholdMap = [ @@ -67360,7 +67290,7 @@ module.exports = function Dither(pixels, type) { } -},{}],203:[function(require,module,exports){ +},{}],201:[function(require,module,exports){ module.exports = function Dither(options, UI){ var output; @@ -67398,9 +67328,9 @@ module.exports = function Dither(options, UI){ UI: UI } } -},{"../_nomodule/PixelManipulation.js":259,"./Dither":202}],204:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":203,"./info.json":205,"dup":164}],205:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Dither":200}],202:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":201,"./info.json":203,"dup":162}],203:[function(require,module,exports){ module.exports={ "name": "Dither", "description": "Approximates a color from a mixture of other colors when the required color is not available, creating illusions of the color that is not present actually.Read more", @@ -67414,7 +67344,7 @@ module.exports={ } } -},{}],206:[function(require,module,exports){ +},{}],204:[function(require,module,exports){ module.exports = exports = function(pixels, options){ options.startingX = options.startingX || 0; options.startingY = options.startingY || 0; @@ -67452,7 +67382,7 @@ module.exports = exports = function(pixels, options){ return pixels; } -},{}],207:[function(require,module,exports){ +},{}],205:[function(require,module,exports){ module.exports = function DrawRectangle(options, UI) { @@ -67498,9 +67428,9 @@ module.exports = function DrawRectangle(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./DrawRectangle":206}],208:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":207,"./info.json":209,"dup":164}],209:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./DrawRectangle":204}],206:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":205,"./info.json":207,"dup":162}],207:[function(require,module,exports){ module.exports={ "name": "Draw Rectangle", "description": "It draws a rectangle on the image", @@ -67543,7 +67473,7 @@ module.exports={ } } -},{}],210:[function(require,module,exports){ +},{}],208:[function(require,module,exports){ module.exports = function Dynamic(options,UI) { var output; @@ -67644,9 +67574,9 @@ module.exports = function Dynamic(options,UI) { } } -},{"../_nomodule/PixelManipulation.js":259}],211:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":210,"./info.json":212,"dup":164}],212:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],209:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":208,"./info.json":210,"dup":162}],210:[function(require,module,exports){ module.exports={ "name": "Dynamic", "description": "A module which accepts JavaScript math expressions to produce each color channel based on the original image's color. See Infragrammar.", @@ -67675,7 +67605,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],213:[function(require,module,exports){ +},{}],211:[function(require,module,exports){ const _ = require('lodash') //define kernels for the sobel filter @@ -67851,7 +67781,7 @@ function doubleThreshold(pixels, highThresholdRatio, lowThresholdRatio, mags, st -},{"lodash":60}],214:[function(require,module,exports){ +},{"lodash":75}],212:[function(require,module,exports){ /* * Detect Edges in an Image */ @@ -67910,9 +67840,9 @@ module.exports = function edgeDetect(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./EdgeUtils":213,"ndarray-gaussian-filter":65}],215:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":214,"./info.json":216,"dup":164}],216:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./EdgeUtils":211,"ndarray-gaussian-filter":80}],213:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":212,"./info.json":214,"dup":162}],214:[function(require,module,exports){ module.exports={ "name": "Detect Edges", "description": "This module detects edges using the Canny method, which first Gaussian blurs the image to reduce noise (amount of blur configurable in settings as `options.blur`), then applies a number of steps to highlight edges, resulting in a greyscale image where the brighter the pixel, the stronger the detected edge. Read more. ", @@ -67939,7 +67869,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],217:[function(require,module,exports){ +},{}],215:[function(require,module,exports){ /* * Resolves Fisheye Effect */ @@ -68011,9 +67941,9 @@ module.exports = function DoNothing(options,UI) { } } -},{"fisheyegl":24}],218:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":217,"./info.json":219,"dup":164}],219:[function(require,module,exports){ +},{"fisheyegl":21}],216:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":215,"./info.json":217,"dup":162}],217:[function(require,module,exports){ module.exports={ "name": "Fisheye GL", "description": "Correct fisheye, or barrel distortion, in images (with WebGL -- adapted from fisheye-correction-webgl by @bluemir).", @@ -68082,7 +68012,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],220:[function(require,module,exports){ +},{}],218:[function(require,module,exports){ module.exports = function Gamma(options,UI){ var output; @@ -68128,9 +68058,9 @@ module.exports = function Gamma(options,UI){ } } -},{"../_nomodule/PixelManipulation.js":259}],221:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":220,"./info.json":222,"dup":164}],222:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],219:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":218,"./info.json":220,"dup":162}],220:[function(require,module,exports){ module.exports={ "name": "Gamma Correction", "description": "Apply gamma correction on the image Read more", @@ -68144,7 +68074,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],223:[function(require,module,exports){ +},{}],221:[function(require,module,exports){ (function (Buffer){ module.exports = function Invert(options, UI) { @@ -68210,16 +68140,16 @@ module.exports = function Invert(options, UI) { } }).call(this,require("buffer").Buffer) -},{"buffer":12,"get-pixels":32,"save-pixels":127}],224:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":223,"./info.json":225,"dup":164}],225:[function(require,module,exports){ +},{"buffer":47,"get-pixels":29,"save-pixels":138}],222:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":221,"./info.json":223,"dup":162}],223:[function(require,module,exports){ module.exports={ "name": "Gradient", "description": "Gives a gradient of the image", "inputs": {}, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],226:[function(require,module,exports){ +},{}],224:[function(require,module,exports){ /* * Calculates the histogram of the image */ @@ -68314,12 +68244,12 @@ module.exports = function Channel(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259}],227:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],225:[function(require,module,exports){ module.exports = [ require('./Module.js'), require('./info.json') ] -},{"./Module.js":226,"./info.json":228}],228:[function(require,module,exports){ +},{"./Module.js":224,"./info.json":226}],226:[function(require,module,exports){ module.exports={ "name": "Histogram", "description": "Calculates the histogram for the image", @@ -68336,7 +68266,7 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],229:[function(require,module,exports){ +},{}],227:[function(require,module,exports){ /* * Import Image module; this fetches a given remote or local image via URL * or data-url, and overwrites the current one. It saves the original as @@ -68396,7 +68326,7 @@ module.exports = function ImportImageModule(options, UI) { } } -},{"../../util/GetFormat":263,"./Ui.js":230}],230:[function(require,module,exports){ +},{"../../util/GetFormat":257,"./Ui.js":228}],228:[function(require,module,exports){ // hide on save module.exports = function ImportImageModuleUi(step, ui) { @@ -68452,9 +68382,9 @@ module.exports = function ImportImageModuleUi(step, ui) { } } -},{}],231:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":229,"./info.json":232,"dup":164}],232:[function(require,module,exports){ +},{}],229:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":227,"./info.json":230,"dup":162}],230:[function(require,module,exports){ module.exports={ "name": "Import Image", "description": "Import a new image and replace the original with it. Future versions may enable a blend mode. Specify an image by URL or by file selector.", @@ -68468,7 +68398,27 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],233:[function(require,module,exports){ +},{}],231:[function(require,module,exports){ +/* + * Sample Meta Module for demonstration purpose only + */ +module.exports = function NdviColormapfunction() { + this.expandSteps([{ 'name': 'ndvi', 'options': {} }, { 'name': 'colormap', options: {} }]); + return { + isMeta: true + } +} +},{}],232:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":231,"./info.json":233,"dup":162}],233:[function(require,module,exports){ +module.exports={ + "name": "NDVI-Colormap", + "description": "Sequentially Applies NDVI and Colormap steps", + "inputs": {}, + "length": 2, + "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" +} +},{}],234:[function(require,module,exports){ /* * NDVI with red filter (blue channel is infrared) */ @@ -68528,7 +68478,7 @@ module.exports = function Ndvi(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"./Ui.js":234}],234:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"./Ui.js":235}],235:[function(require,module,exports){ // hide on save module.exports = function CropModuleUi(step, ui) { @@ -68564,9 +68514,9 @@ module.exports = function CropModuleUi(step, ui) { } } -},{}],235:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":233,"./info.json":236,"dup":164}],236:[function(require,module,exports){ +},{}],236:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":234,"./info.json":237,"dup":162}],237:[function(require,module,exports){ module.exports={ "name": "NDVI", "description": "Normalized Difference Vegetation Index, or NDVI, is an image analysis technique used with aerial photography. It's a way to visualize the amounts of infrared and other wavelengths of light reflected from vegetation by comparing ratios of blue and red light absorbed versus green and IR light reflected. NDVI is used to evaluate the health of vegetation in satellite imagery, where it correlates with how much photosynthesis is happening. This is helpful in assessing vegetative health or stress. Read more.

This is designed for use with red-filtered single camera DIY Infragram cameras; change to 'blue' for blue filters", @@ -68581,27 +68531,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],237:[function(require,module,exports){ -/* - * Sample Meta Module for demonstration purpose only - */ -module.exports = function NdviColormapfunction() { - this.expandSteps([{ 'name': 'ndvi', 'options': {} }, { 'name': 'colormap', options: {} }]); - return { - isMeta: true - } -} },{}],238:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":237,"./info.json":239,"dup":164}],239:[function(require,module,exports){ -module.exports={ - "name": "NDVI-Colormap", - "description": "Sequentially Applies NDVI and Colormap steps", - "inputs": {}, - "length": 2, - "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" -} -},{}],240:[function(require,module,exports){ module.exports = function Dynamic(options, UI, util) { options.x = options.x || 0; @@ -68685,9 +68615,9 @@ module.exports = function Dynamic(options, UI, util) { } } -},{"../../util/ParseInputCoordinates":264,"../_nomodule/PixelManipulation.js":259,"get-pixels":32}],241:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":240,"./info.json":242,"dup":164}],242:[function(require,module,exports){ +},{"../../util/ParseInputCoordinates":258,"../_nomodule/PixelManipulation.js":253,"get-pixels":29}],239:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":238,"./info.json":240,"dup":162}],240:[function(require,module,exports){ module.exports={ "name": "Overlay", "description": "Overlays an Image over another at a given position(x,y) in pixels or in %", @@ -68710,155 +68640,7 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],243:[function(require,module,exports){ -module.exports = function PaintBucket(options, UI) { - - var output; - - function draw(input, callback, progressObj) { - - progressObj.stop(true); - progressObj.overrideFlag = true; - - var step = this; - - - function changePixel(r, g, b, a) { - return [r, g, b, a] - } - - function extraManipulation(pixels) { - - - pixels = require('./PaintBucket')(pixels, options) - return pixels - - } - - function output(image, datauri, mimetype) { - // This output is accesible by Image Sequencer - step.output = { src: datauri, format: mimetype }; - } - - return require('../_nomodule/PixelManipulation.js')(input, { - output: output, - changePixel: changePixel, - extraManipulation: extraManipulation, - format: input.format, - image: options.image, - inBrowser: options.inBrowser, - callback: callback - }); - } - - return { - options: options, - draw: draw, - output: output, - UI: UI - } -} - -},{"../_nomodule/PixelManipulation.js":259,"./PaintBucket":244}],244:[function(require,module,exports){ -module.exports = exports = function(pixels, options){ - - var fillColor = options.fillColor || '100 100 100 255', - x = parseInt(options.startingX) || 10, - y = parseInt(options.startingY) || 10, - height = pixels.shape[1], - width = pixels.shape[0], - r = pixels.get(x, y, 0), - g = pixels.get(x,y,1), - b = pixels.get(x,y,2), - a = pixels.get(x, y, 3), - queuex = [x], - queuey = [y], - curry, currx, - north, - south, - n, - tolerance = parseInt(options.tolerance) || 10, - maxFactor = (1 + tolerance/100), - minFactor = (1 - tolerance/100); - - fillColor = fillColor.split(" "); - function isSimilar(currx, curry){ - return (pixels.get(currx, curry, 0) > r*minFactor && pixels.get(currx, curry, 0) < r*maxFactor && - pixels.get(currx, curry, 1) > g*minFactor && pixels.get(currx, curry, 1) < g*maxFactor && - pixels.get(currx, curry, 2) > b*minFactor && pixels.get(currx, curry, 2) < b*maxFactor && - pixels.get(currx, curry, 3) > a*minFactor && pixels.get(currx, curry, 3) < a*maxFactor); - } - - while (queuey.length) { - currx = queuex.pop() - curry = queuey.pop() - - - if (isSimilar(currx, curry)) { - north = south = curry - - do { - north -= 1 - } while (isSimilar(currx, north) && north >= 0) - - do { - south += 1 - } while (isSimilar(currx, south) && south < height) - - for (n = north + 1; n < south; n += 1) { - pixels.set(currx, n, 0, fillColor[0]); - pixels.set(currx, n, 1, fillColor[1]); - pixels.set(currx, n, 2, fillColor[2]); - pixels.set(currx, n, 3, fillColor[3]); - if (isSimilar(currx - 1, n)) { - queuex.push(currx - 1) - queuey.push(n) - } - if (isSimilar(currx + 1, n)) { - queuex.push(currx + 1) - queuey.push(n) - } - } - } - } - - return pixels; -} - -},{}],245:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":243,"./info.json":246,"dup":164}],246:[function(require,module,exports){ -module.exports={ - "name": "PaintBucket", - "description": "Fill color in pixels", - "inputs": { - "startingX": { - "type": "integer", - "desc": "value of the starting x-coordinate", - "default": "10" - }, - "startingY": { - "type": "integer", - "desc": "value of the starting y-coordinate", - "default": "10" - }, - "fillColor": { - "type": "String", - "desc": "four space separated numbers representing the RGBA values of fill-color", - "default": "100 100 100 255", - "placeholder": "100 100 100 255" - }, - "tolerance": { - "type": "range", - "desc": "% tolerance", - "default": "10", - "min": "5", - "max": "15", - "step": "1" - } - } -} -},{}],247:[function(require,module,exports){ +},{}],241:[function(require,module,exports){ /* * Resize the image by given percentage value */ @@ -68931,9 +68713,9 @@ module.exports = function Resize(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"imagejs":47}],248:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":247,"./info.json":249,"dup":164}],249:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"imagejs":62}],242:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":241,"./info.json":243,"dup":162}],243:[function(require,module,exports){ module.exports={ "name": "Resize", "description": "Resize image by given percentage value", @@ -68946,7 +68728,7 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],250:[function(require,module,exports){ +},{}],244:[function(require,module,exports){ /* * Rotates image */ @@ -69010,9 +68792,9 @@ module.exports = function Rotate(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259,"imagejs":47}],251:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":250,"./info.json":252,"dup":164}],252:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253,"imagejs":62}],245:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":244,"./info.json":246,"dup":162}],246:[function(require,module,exports){ module.exports={ "name": "Rotate", "description": "Rotates image by specified degrees", @@ -69028,7 +68810,7 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],253:[function(require,module,exports){ +},{}],247:[function(require,module,exports){ /* * Saturate an image with a value from 0 to 1 */ @@ -69086,9 +68868,9 @@ module.exports = function Saturation(options,UI) { } } -},{"../_nomodule/PixelManipulation.js":259}],254:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":253,"./info.json":255,"dup":164}],255:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],248:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":247,"./info.json":249,"dup":162}],249:[function(require,module,exports){ module.exports={ "name": "Saturation", "description": "Change the saturation of the image by given value, from 0-1, with 1 being 100% saturated.", @@ -69105,7 +68887,7 @@ module.exports={ "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],256:[function(require,module,exports){ +},{}],250:[function(require,module,exports){ module.exports = function Balance(options, UI) { var output; @@ -69192,9 +68974,9 @@ module.exports = function Balance(options, UI) { } } -},{"../_nomodule/PixelManipulation.js":259}],257:[function(require,module,exports){ -arguments[4][164][0].apply(exports,arguments) -},{"./Module":256,"./info.json":258,"dup":164}],258:[function(require,module,exports){ +},{"../_nomodule/PixelManipulation.js":253}],251:[function(require,module,exports){ +arguments[4][162][0].apply(exports,arguments) +},{"./Module":250,"./info.json":252,"dup":162}],252:[function(require,module,exports){ module.exports={ "name": "White Balance", "description": "Change the colour balance of the image by adjusting the colour temperature.", @@ -69207,7 +68989,7 @@ module.exports={ }, "docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md" } -},{}],259:[function(require,module,exports){ +},{}],253:[function(require,module,exports){ (function (process,Buffer){ /* * General purpose per-pixel manipulation @@ -69308,7 +69090,7 @@ module.exports = function PixelManipulation(image, options) { }; 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t=this.strm.avail_out,e=this.strm.avail_in;this.write_in_progress=!1,this.callback(e,t),this.pending_close&&this.close()}},c.prototype._error=function(t){this.strm.msg&&(t=this.strm.msg),this.onerror(t,this.err),this.write_in_progress=!1,this.pending_close&&this.close()},c.prototype.init=function(t,e,n,o,a){i(4===arguments.length||5===arguments.length,"init(windowBits, level, memLevel, strategy, [dictionary])"),i(t>=8&&t<=15,"invalid windowBits"),i(e>=-1&&e<=9,"invalid compression level"),i(n>=1&&n<=9,"invalid memlevel"),i(o===r.Z_FILTERED||o===r.Z_HUFFMAN_ONLY||o===r.Z_RLE||o===r.Z_FIXED||o===r.Z_DEFAULT_STRATEGY,"invalid strategy"),this._init(e,t,n,o,a),this._setDictionary()},c.prototype.params=function(){throw new Error("deflateParams Not supported")},c.prototype.reset=function(){this._reset(),this._setDictionary()},c.prototype._init=function(t,e,n,i,l){switch(this.level=t,this.windowBits=e,this.memLevel=n,this.strategy=i,this.flush=r.Z_NO_FLUSH,this.err=r.Z_OK,this.mode!==r.GZIP&&this.mode!==r.GUNZIP||(this.windowBits+=16),this.mode===r.UNZIP&&(this.windowBits+=32),this.mode!==r.DEFLATERAW&&this.mode!==r.INFLATERAW||(this.windowBits=-1*this.windowBits),this.strm=new o,this.mode){case r.DEFLATE:case r.GZIP:case r.DEFLATERAW:this.err=a.deflateInit2(this.strm,this.level,r.Z_DEFLATED,this.windowBits,this.memLevel,this.strategy);break;case r.INFLATE:case r.GUNZIP:case r.INFLATERAW:case r.UNZIP:this.err=s.inflateInit2(this.strm,this.windowBits);break;default:throw new Error("Unknown mode "+this.mode)}this.err!==r.Z_OK&&this._error("Init error"),this.dictionary=l,this.write_in_progress=!1,this.init_done=!0},c.prototype._setDictionary=function(){if(null!=this.dictionary){switch(this.err=r.Z_OK,this.mode){case r.DEFLATE:case r.DEFLATERAW:this.err=a.deflateSetDictionary(this.strm,this.dictionary)}this.err!==r.Z_OK&&this._error("Failed to set dictionary")}},c.prototype._reset=function(){switch(this.err=r.Z_OK,this.mode){case r.DEFLATE:case r.DEFLATERAW:case r.GZIP:this.err=a.deflateReset(this.strm);break;case r.INFLATE:case r.INFLATERAW:case r.GUNZIP:this.err=s.inflateReset(this.strm)}this.err!==r.Z_OK&&this._error("Failed to reset stream")},r.Zlib=c}).call(this,t("_process"),t("buffer").Buffer)},{_process:114,assert:1,buffer:12,"pako/lib/zlib/constants":82,"pako/lib/zlib/deflate.js":84,"pako/lib/zlib/inflate.js":86,"pako/lib/zlib/zstream":90}],10:[function(t,e,r){(function(e){"use strict";var n=t("buffer").Buffer,i=t("stream").Transform,o=t("./binding"),a=t("util"),s=t("assert").ok,l=t("buffer").kMaxLength,u="Cannot create final Buffer. 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void 0===t&&(t=1),this.write(i("["+Math.floor(t)+"A")),this},s.prototype.down=function(t){return void 0===t&&(t=1),this.write(i("["+Math.floor(t)+"B")),this},s.prototype.right=function(t){return void 0===t&&(t=1),this.write(i("["+Math.floor(t)+"C")),this},s.prototype.left=function(t){return void 0===t&&(t=1),this.write(i("["+Math.floor(t)+"D")),this},s.prototype.column=function(t){return this.write(i("["+Math.floor(t)+"G")),this},s.prototype.push=function(t){return this.write(i(t?"7":"[s")),this},s.prototype.pop=function(t){return this.write(i(t?"8":"[u")),this},s.prototype.erase=function(t){return"end"===t||"$"===t?this.write(i("[K")):"start"===t||"^"===t?this.write(i("[1K")):"line"===t?this.write(i("[2K")):"down"===t?this.write(i("[J")):"up"===t?this.write(i("[1J")):"screen"===t?this.write(i("[1J")):this.emit("error",new Error("Unknown erase type: "+t)),this},s.prototype.display=function(t){var e={reset:0,bright:1,dim:2,underscore:4,blink:5,reverse:7,hidden:8}[t];return void 0===e&&this.emit("error",new Error("Unknown attribute: "+t)),this.write(i("["+e+"m")),this},s.prototype.foreground=function(t){if("number"==typeof t)(t<0||t>=256)&&this.emit("error",new Error("Color out of range: "+t)),this.write(i("[38;5;"+t+"m"));else{var e={black:30,red:31,green:32,yellow:33,blue:34,magenta:35,cyan:36,white:37}[t.toLowerCase()];e||this.emit("error",new Error("Unknown color: "+t)),this.write(i("["+e+"m"))}return this},s.prototype.background=function(t){if("number"==typeof t)(t<0||t>=256)&&this.emit("error",new Error("Color out of range: "+t)),this.write(i("[48;5;"+t+"m"));else{var e={black:40,red:41,green:42,yellow:43,blue:44,magenta:45,cyan:46,white:47}[t.toLowerCase()];e||this.emit("error",new Error("Unknown color: "+t)),this.write(i("["+e+"m"))}return this},s.prototype.cursor=function(t){return this.write(i(t?"[?25h":"[?25l")),this};var l=a.extractCodes=function(t){for(var e=[],r=-1,n=0;n=0&&e.push(t.slice(r,n)),r=n):r>=0&&n===t.length-1&&e.push(t.slice(r));return 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Array.isArray?Array.isArray(t):"[object Array]"===e(t)},r.isBoolean=function(t){return"boolean"==typeof t},r.isNull=function(t){return null===t},r.isNullOrUndefined=function(t){return null==t},r.isNumber=function(t){return"number"==typeof t},r.isString=function(t){return"string"==typeof t},r.isSymbol=function(t){return"symbol"==typeof t},r.isUndefined=function(t){return void 0===t},r.isRegExp=function(t){return"[object RegExp]"===e(t)},r.isObject=function(t){return"object"==typeof t&&null!==t},r.isDate=function(t){return"[object Date]"===e(t)},r.isError=function(t){return"[object Error]"===e(t)||t instanceof Error},r.isFunction=function(t){return"function"==typeof t},r.isPrimitive=function(t){return null===t||"boolean"==typeof t||"number"==typeof t||"string"==typeof t||"symbol"==typeof t||void 0===t},r.isBuffer=t.isBuffer}).call(this,{isBuffer:t("../../is-buffer/index.js")})},{"../../is-buffer/index.js":57}],17:[function(t,e,r){"use strict";var n=t("./lib/thunk.js");e.exports=function(t){var e=new function(){this.argTypes=[],this.shimArgs=[],this.arrayArgs=[],this.arrayBlockIndices=[],this.scalarArgs=[],this.offsetArgs=[],this.offsetArgIndex=[],this.indexArgs=[],this.shapeArgs=[],this.funcName="",this.pre=null,this.body=null,this.post=null,this.debug=!1};e.pre=t.pre,e.body=t.body,e.post=t.post;var r=t.args.slice(0);e.argTypes=r;for(var i=0;i0)throw new Error("cwise: pre() block may not reference array args");if(i0)throw new Error("cwise: post() block may not reference array args")}else if("scalar"===o)e.scalarArgs.push(i),e.shimArgs.push("scalar"+i);else if("index"===o){if(e.indexArgs.push(i),i0)throw new Error("cwise: pre() block may not reference array index");if(i0)throw new Error("cwise: post() block may not reference array index")}else if("shape"===o){if(e.shapeArgs.push(i),ir.length)throw new Error("cwise: Too many arguments in pre() block");if(e.body.args.length>r.length)throw new Error("cwise: Too many arguments in body() block");if(e.post.args.length>r.length)throw new Error("cwise: Too many arguments in post() block");return e.debug=!!t.printCode||!!t.debug,e.funcName=t.funcName||"cwise",e.blockSize=t.blockSize||64,n(e)}},{"./lib/thunk.js":19}],18:[function(t,e,r){"use strict";var n=t("uniq");function i(t,e,r){var n,i,o=t.length,a=e.arrayArgs.length,s=e.indexArgs.length>0,l=[],u=[],c=0,f=0;for(n=0;n0&&l.push("var "+u.join(",")),n=o-1;n>=0;--n)c=t[n],l.push(["for(i",n,"=0;i",n,"0&&l.push(["index[",f,"]-=s",f].join("")),l.push(["++index[",c,"]"].join(""))),l.push("}")}return l.join("\n")}function o(t,e,r){for(var n=t.body,i=[],o=[],a=0;a0&&_.push("shape=SS.slice(0)"),t.indexArgs.length>0){var y=new Array(r);for(l=0;l0&&g.push("var "+_.join(",")),l=0;l3&&g.push(o(t.pre,t,s));var x=o(t.body,t,s),B=function(t){for(var e=0,r=t[0].length;e0,u=[],c=0;c0;){"].join("")),u.push(["if(j",c,"<",s,"){"].join("")),u.push(["s",e[c],"=j",c].join("")),u.push(["j",c,"=0"].join("")),u.push(["}else{s",e[c],"=",s].join("")),u.push(["j",c,"-=",s,"}"].join("")),l&&u.push(["index[",e[c],"]=j",c].join(""));for(c=0;c3&&g.push(o(t.post,t,s)),t.debug&&console.log("-----Generated cwise routine for ",e,":\n"+g.join("\n")+"\n----------");var C=[t.funcName||"unnamed","_cwise_loop_",a[0].join("s"),"m",B,function(t){for(var e=new Array(t.length),r=!0,n=0;n0&&(r=r&&e[n]===e[n-1])}return r?e[0]:e.join("")}(s)].join("");return new Function(["function ",C,"(",v.join(","),"){",g.join("\n"),"} return ",C].join(""))()}},{uniq:148}],19:[function(t,e,r){"use strict";var n=t("./compile.js");e.exports=function(t){var e=["'use strict'","var CACHED={}"],r=[],i=t.funcName+"_cwise_thunk";e.push(["return function ",i,"(",t.shimArgs.join(","),"){"].join(""));for(var o=[],a=[],s=[["array",t.arrayArgs[0],".shape.slice(",Math.max(0,t.arrayBlockIndices[0]),t.arrayBlockIndices[0]<0?","+t.arrayBlockIndices[0]+")":")"].join("")],l=[],u=[],c=0;c0&&(l.push("array"+t.arrayArgs[0]+".shape.length===array"+f+".shape.length+"+(Math.abs(t.arrayBlockIndices[0])-Math.abs(t.arrayBlockIndices[c]))),u.push("array"+t.arrayArgs[0]+".shape[shapeIndex+"+Math.max(0,t.arrayBlockIndices[0])+"]===array"+f+".shape[shapeIndex+"+Math.max(0,t.arrayBlockIndices[c])+"]"))}for(t.arrayArgs.length>1&&(e.push("if (!("+l.join(" && ")+")) throw new Error('cwise: Arrays do not all have the same dimensionality!')"),e.push("for(var shapeIndex=array"+t.arrayArgs[0]+".shape.length-"+Math.abs(t.arrayBlockIndices[0])+"; shapeIndex--\x3e0;) {"),e.push("if (!("+u.join(" && ")+")) throw new Error('cwise: Arrays do not all have the same shape!')"),e.push("}")),c=0;c0)return function(t,e){var r,n;for(r=new Array(t),n=0;n0&&s.length>o){s.warned=!0;var l=new Error("Possible EventEmitter memory leak detected. "+s.length+' "'+String(e)+'" listeners added. Use emitter.setMaxListeners() to increase limit.');l.name="MaxListenersExceededWarning",l.emitter=t,l.type=e,l.count=s.length,"object"==typeof console&&console.warn&&console.warn("%s: %s",l.name,l.message)}}else s=a[e]=r,++t._eventsCount;return t}function h(){if(!this.fired)switch(this.target.removeListener(this.type,this.wrapFn),this.fired=!0,arguments.length){case 0:return this.listener.call(this.target);case 1:return this.listener.call(this.target,arguments[0]);case 2:return this.listener.call(this.target,arguments[0],arguments[1]);case 3:return this.listener.call(this.target,arguments[0],arguments[1],arguments[2]);default:for(var t=new Array(arguments.length),e=0;e1&&(e=arguments[1]),e instanceof Error)throw e;var l=new Error('Unhandled "error" event. ('+e+")");throw l.context=e,l}if(!(r=a[t]))return!1;var u="function"==typeof r;switch(n=arguments.length){case 1:!function(t,e,r){if(e)t.call(r);else for(var n=t.length,i=v(t,n),o=0;o=0;a--)if(r[a]===e||r[a].listener===e){s=r[a].listener,o=a;break}if(o<0)return this;0===o?r.shift():function(t,e){for(var r=e,n=r+1,i=t.length;n=0;o--)this.removeListener(t,e[o]);return this},a.prototype.listeners=function(t){return d(this,t,!0)},a.prototype.rawListeners=function(t){return d(this,t,!1)},a.listenerCount=function(t,e){return"function"==typeof t.listenerCount?t.listenerCount(e):m.call(t,e)},a.prototype.listenerCount=m,a.prototype.eventNames=function(){return this._eventsCount>0?Reflect.ownKeys(this._events):[]}},{}],24:[function(t,e,r){var n=function(e){(e=e||{}).width=e.width||800,e.height=e.height||600;var r=e.model||{vertex:[-1,-1,0,1,-1,0,1,1,0,-1,1,0],indices:[0,1,2,0,2,3,2,1,0,3,2,0],textureCoords:[0,0,1,0,1,1,0,1]},n=e.lens||{a:1,b:1,Fx:0,Fy:0,scale:1.5},i=e.fov||{x:1,y:1},o=e.image||"images/barrel-distortion.png",a=function(t){var e=document.querySelector(t);if(null==e)throw new Error("there is no canvas on this page");for(var r=["webgl","experimental-webgl","webkit-3d","moz-webgl"],n=0;n 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t} \n\tgl_FragColor = texture;\n}\n"},{}],27:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec4 uLens;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\treturn (textureCoord - vec2(0.5, 0.5)) * 2.0;\n}\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord / 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tfloat correctionRadius = 0.5;\n\tfloat distance = sqrt(vPosition.x * vPosition.x + vPosition.y * vPosition.y) / correctionRadius;\n\tfloat theta = 1.0;\n\tif(distance != 0.0){\n\t\ttheta = atan(distance);\n\t}\n\tvec2 vMapping = theta * vPosition.xy;\n\tvMapping = GLCoord2TextureCoord(vMapping);\n\t\t\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t} \n\tgl_FragColor = texture;\n}\n"},{}],28:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec3 uLensS;\nuniform vec2 uLensF;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tfloat scale = uLensS.z;\n\tvec3 vPos = vPosition;\n\tfloat Fx = uLensF.x;\n\tfloat Fy = uLensF.y;\n\tvec2 vMapping = vPos.xy;\n\tvMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\tvMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\tvMapping = vMapping * uLensS.xy;\n\tvMapping = GLCoord2TextureCoord(vMapping/scale);\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t}\n\tgl_FragColor = texture;\n}\n"},{}],29:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec4 uLens;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\treturn (textureCoord - vec2(0.5, 0.5)) * 2.0;\n}\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord / 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tvec2 vMapping = vec2(vTextureCoord.x, 1.0 - vTextureCoord.y);\n\tvMapping = TextureCoord2GLCoord(vMapping);\n\t//TODO insert Code\n\tfloat F = uLens.x/ uLens.w;\n\tfloat seta = length(vMapping) / F;\n\tvMapping = sin(seta) * F / length(vMapping) * vMapping;\n\tvMapping *= uLens.w * 1.414;\n\tvMapping = GLCoord2TextureCoord(vMapping);\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t} \n\tgl_FragColor = texture;\n}\n"},{}],30:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec4 uLens;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\treturn (textureCoord - vec2(0.5, 0.5)) * 2.0;\n}\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord / 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tvec2 vMapping = vec2(vTextureCoord.x, 1.0 - vTextureCoord.y);\n\tvMapping = TextureCoord2GLCoord(vMapping);\n\t//TOD insert Code\n\tfloat F = uLens.x/ uLens.w;\n\tfloat seta = length(vMapping) / F;\n\tvMapping = sin(seta) * F / length(vMapping) * vMapping;\n\tvMapping *= uLens.w * 1.414;\n\tvMapping = GLCoord2TextureCoord(vMapping);\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t} \n\tgl_FragColor = texture;\n}\n"},{}],31:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nattribute vec3 aVertexPosition;\nattribute vec2 aTextureCoord;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvoid main(void){\n\tvPosition = aVertexPosition;\n\tvTextureCoord = aTextureCoord;\n\tgl_Position = vec4(vPosition,1.0);\n}\n"},{}],32:[function(t,e,r){(function(r,n){"use strict";var i=t("path"),o=t("ndarray"),a=t("omggif").GifReader,s=(t("ndarray-pack"),t("through"),t("data-uri-to-buffer"));function l(t,e){var r;try{r=new a(t)}catch(t){return void e(t)}if(r.numFrames()>0){var n=[r.numFrames(),r.height,r.width,4],i=new Uint8Array(n[0]*n[1]*n[2]*n[3]),s=o(i,n);try{for(var l=0;l=0&&(this.dispose=t)},l.prototype.setRepeat=function(t){this.repeat=t},l.prototype.setTransparent=function(t){this.transparent=t},l.prototype.analyzeImage=function(t){this.setImagePixels(this.removeAlphaChannel(t)),this.analyzePixels()},l.prototype.writeImageInfo=function(){this.firstFrame&&(this.writeLSD(),this.writePalette(),this.repeat>=0&&this.writeNetscapeExt()),this.writeGraphicCtrlExt(),this.writeImageDesc(),this.firstFrame||this.writePalette(),this.firstFrame=!1},l.prototype.outputImage=function(){this.writePixels()},l.prototype.addFrame=function(t){this.emit("frame#start"),this.analyzeImage(t),this.writeImageInfo(),this.outputImage(),this.emit("frame#stop")},l.prototype.finish=function(){this.emit("finish#start"),this.writeByte(59),this.emit("finish#stop")},l.prototype.setQuality=function(t){t<1&&(t=1),this.sample=t},l.prototype.writeHeader=function(){this.emit("writeHeader#start"),this.writeUTFBytes("GIF89a"),this.emit("writeHeader#stop")},l.prototype.analyzePixels=function(){var t=this.pixels.length/3;this.indexedPixels=new Uint8Array(t);var e=new o(this.pixels,this.sample);e.buildColormap(),this.colorTab=e.getColormap();for(var r=0,n=0;n>16,r=(65280&t)>>8,n=255&t,i=0,o=16777216,a=this.colorTab.length,s=0;s=0&&(e=7&dispose),e<<=2,this.writeByte(0|e|t),this.writeShort(this.delay),this.writeByte(this.transIndex),this.writeByte(0)},l.prototype.writeImageDesc=function(){this.writeByte(44),this.writeShort(0),this.writeShort(0),this.writeShort(this.width),this.writeShort(this.height),this.firstFrame?this.writeByte(0):this.writeByte(128|this.palSize)},l.prototype.writeLSD=function(){this.writeShort(this.width),this.writeShort(this.height),this.writeByte(240|this.palSize),this.writeByte(0),this.writeByte(0)},l.prototype.writeNetscapeExt=function(){this.writeByte(33),this.writeByte(255),this.writeByte(11),this.writeUTFBytes("NETSCAPE2.0"),this.writeByte(3),this.writeByte(1),this.writeShort(this.repeat),this.writeByte(0)},l.prototype.writePalette=function(){this.writeBytes(this.colorTab);for(var t=768-this.colorTab.length,e=0;e>8&255)},l.prototype.writePixels=function(){new a(this.width,this.height,this.indexedPixels,this.colorDepth).encode(this)},l.prototype.stream=function(){return this},l.ByteCapacitor=s,e.exports=l}).call(this,t("buffer").Buffer)},{"./LZWEncoder.js":35,"./TypedNeuQuant.js":36,assert:1,buffer:12,events:23,"readable-stream":43,util:152}],35:[function(t,e,r){var n=-1,i=12,o=5003,a=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];e.exports=function(t,e,r,s){var l,u,c,f,h,p,d,m,v,g=Math.max(2,s),_=new Uint8Array(256),y=new Int32Array(o),b=new Int32Array(o),w=0,k=0,x=!1;function B(t,e){_[u++]=t,u>=254&&P(e)}function C(t){E(o),k=m+2,x=!0,T(m,t)}function E(t){for(var e=0;e0&&(t.writeByte(u),t.writeBytes(_,0,u),u=0)}function S(t){return(1<0?l|=t<=8;)B(255&l,e),l>>=8,w-=8;if((k>c||x)&&(x?(c=S(p=d),x=!1):c=++p==i?1<0;)B(255&l,e),l>>=8,w-=8;P(e)}}this.encode=function(r){r.writeByte(g),f=t*e,h=0,function(t,e){var r,a,s,l,f,h,g;for(x=!1,c=S(p=d=t),v=1+(m=1<=0){f=h-s,0===s&&(f=1);do{if((s-=f)<0&&(s+=h),y[s]===r){l=b[s];continue t}}while(y[s]>=0)}T(l,e),l=a,k<1<>c,h=l<>3)*(1<u;)l=P[p++],fu&&((s=r[h--])[0]-=l*(s[0]-n)/_,s[1]-=l*(s[1]-o)/_,s[2]-=l*(s[2]-a)/_)}function T(t,e,n){var o,l,p,d,m,v=~(1<<31),g=v,_=-1,y=_;for(o=0;o>s-a))>c,E[o]-=m,C[o]+=m<>3),t=0;t>p;for(E<=1&&(E=0),r=0;r=c&&(M-=c),r++,0===_&&(_=1),r%_==0)for(B-=B/f,(E=(C-=C/m)>>p)<=1&&(E=0),u=0;u>=a,r[t][1]>>=a,r[t][2]>>=a,r[t][3]=t}(),function(){var t,e,n,a,s,l,u=0,c=0;for(t=0;t>1,e=u+1;e>1,e=u+1;e<256;e++)B[e]=o}()},this.getColormap=function(){for(var t=[],e=[],n=0;n=0;)c=l?c=i:(c++,s<0&&(s=-s),(o=a[0]-t)<0&&(o=-o),(s+=o)=0&&((s=e-(a=r[f])[1])>=l?f=-1:(f--,s<0&&(s=-s),(o=a[0]-t)<0&&(o=-o),(s+=o)0)if(e.ended&&!o){var s=new Error("stream.push() after EOF");t.emit("error",s)}else if(e.endEmitted&&o){s=new Error("stream.unshift() after end event");t.emit("error",s)}else!e.decoder||o||i||(n=e.decoder.write(n)),o||(e.reading=!1),e.flowing&&0===e.length&&!e.sync?(t.emit("data",n),t.read(0)):(e.length+=e.objectMode?1:n.length,o?e.buffer.unshift(n):e.buffer.push(n),e.needReadable&&m(t)),function(t,e){e.readingMore||(e.readingMore=!0,r.nextTick(function(){!function(t,e){var r=e.length;for(;!e.reading&&!e.flowing&&!e.ended&&e.lengthe.highWaterMark&&(e.highWaterMark=function(t){if(t>=p)t=p;else{t--;for(var e=1;e<32;e<<=1)t|=t>>e;t++}return t}(t)),t>e.length?e.ended?e.length:(e.needReadable=!0,0):t)}function m(t){var e=t._readableState;e.needReadable=!1,e.emittedReadable||(u("emitReadable",e.flowing),e.emittedReadable=!0,e.sync?r.nextTick(function(){v(t)}):v(t))}function v(t){u("emit readable"),t.emit("readable"),g(t)}function g(t){var e=t._readableState;if(u("flow",e.flowing),e.flowing)do{var r=t.read()}while(null!==r&&e.flowing)}function _(t,e){var r,n=e.buffer,o=e.length,a=!!e.decoder,s=!!e.objectMode;if(0===n.length)return null;if(0===o)r=null;else if(s)r=n.shift();else if(!t||t>=o)r=a?n.join(""):i.concat(n,o),n.length=0;else{if(t0)throw new Error("endReadable called on non-empty stream");e.endEmitted||(e.ended=!0,r.nextTick(function(){e.endEmitted||0!==e.length||(e.endEmitted=!0,t.readable=!1,t.emit("end"))}))}f.prototype.read=function(t){u("read",t);var e=this._readableState,r=t;if((!l.isNumber(t)||t>0)&&(e.emittedReadable=!1),0===t&&e.needReadable&&(e.length>=e.highWaterMark||e.ended))return u("read: emitReadable",e.length,e.ended),0===e.length&&e.ended?y(this):m(this),null;if(0===(t=d(t,e))&&e.ended)return 0===e.length&&y(this),null;var n,i=e.needReadable;return u("need readable",i),(0===e.length||e.length-t0?_(t,e):null,l.isNull(n)&&(e.needReadable=!0,t=0),e.length-=t,0!==e.length||e.ended||(e.needReadable=!0),r!==t&&e.ended&&0===e.length&&y(this),l.isNull(n)||this.emit("data",n),n},f.prototype._read=function(t){this.emit("error",new Error("not implemented"))},f.prototype.pipe=function(t,e){var i=this,a=this._readableState;switch(a.pipesCount){case 0:a.pipes=t;break;case 1:a.pipes=[a.pipes,t];break;default:a.pipes.push(t)}a.pipesCount+=1,u("pipe count=%d opts=%j",a.pipesCount,e);var s=(!e||!1!==e.end)&&t!==r.stdout&&t!==r.stderr?c:h;function l(t){u("onunpipe"),t===i&&h()}function c(){u("onend"),t.end()}a.endEmitted?r.nextTick(s):i.once("end",s),t.on("unpipe",l);var f=function(t){return function(){var e=t._readableState;u("pipeOnDrain",e.awaitDrain),e.awaitDrain&&e.awaitDrain--,0===e.awaitDrain&&o.listenerCount(t,"data")&&(e.flowing=!0,g(t))}}(i);function h(){u("cleanup"),t.removeListener("close",m),t.removeListener("finish",v),t.removeListener("drain",f),t.removeListener("error",d),t.removeListener("unpipe",l),i.removeListener("end",c),i.removeListener("end",h),i.removeListener("data",p),!a.awaitDrain||t._writableState&&!t._writableState.needDrain||f()}function p(e){u("ondata"),!1===t.write(e)&&(u("false write response, pause",i._readableState.awaitDrain),i._readableState.awaitDrain++,i.pause())}function d(e){u("onerror",e),_(),t.removeListener("error",d),0===o.listenerCount(t,"error")&&t.emit("error",e)}function m(){t.removeListener("finish",v),_()}function v(){u("onfinish"),t.removeListener("close",m),_()}function _(){u("unpipe"),i.unpipe(t)}return t.on("drain",f),i.on("data",p),t._events&&t._events.error?n(t._events.error)?t._events.error.unshift(d):t._events.error=[d,t._events.error]:t.on("error",d),t.once("close",m),t.once("finish",v),t.emit("pipe",i),a.flowing||(u("pipe resume"),i.resume()),t},f.prototype.unpipe=function(t){var e=this._readableState;if(0===e.pipesCount)return this;if(1===e.pipesCount)return t&&t!==e.pipes?this:(t||(t=e.pipes),e.pipes=null,e.pipesCount=0,e.flowing=!1,t&&t.emit("unpipe",this),this);if(!t){var r=e.pipes,n=e.pipesCount;e.pipes=null,e.pipesCount=0,e.flowing=!1;for(var i=0;i1){for(var r=[],n=0;n=this.charLength-this.charReceived?this.charLength-this.charReceived:t.length;if(t.copy(this.charBuffer,this.charReceived,0,r),this.charReceived+=r,this.charReceived=55296&&i<=56319)){if(this.charReceived=this.charLength=0,0===t.length)return e;break}this.charLength+=this.surrogateSize,e=""}this.detectIncompleteChar(t);var n=t.length;this.charLength&&(t.copy(this.charBuffer,0,t.length-this.charReceived,n),n-=this.charReceived);var i;n=(e+=t.toString(this.encoding,0,n)).length-1;if((i=e.charCodeAt(n))>=55296&&i<=56319){var o=this.surrogateSize;return this.charLength+=o,this.charReceived+=o,this.charBuffer.copy(this.charBuffer,o,0,o),t.copy(this.charBuffer,0,0,o),e.substring(0,n)}return e},o.prototype.detectIncompleteChar=function(t){for(var e=t.length>=3?3:t.length;e>0;e--){var r=t[t.length-e];if(1==e&&r>>5==6){this.charLength=2;break}if(e<=2&&r>>4==14){this.charLength=3;break}if(e<=3&&r>>3==30){this.charLength=4;break}}this.charReceived=e},o.prototype.end=function(t){var e="";if(t&&t.length&&(e=this.write(t)),this.charReceived){var r=this.charReceived,n=this.charBuffer,i=this.encoding;e+=n.slice(0,r).toString(i)}return e}},{buffer:12}],45:[function(t,e,r){r.read=function(t,e,r,n,i){var o,a,s=8*i-n-1,l=(1<>1,c=-7,f=r?i-1:0,h=r?-1:1,p=t[e+f];for(f+=h,o=p&(1<<-c)-1,p>>=-c,c+=s;c>0;o=256*o+t[e+f],f+=h,c-=8);for(a=o&(1<<-c)-1,o>>=-c,c+=n;c>0;a=256*a+t[e+f],f+=h,c-=8);if(0===o)o=1-u;else{if(o===l)return a?NaN:1/0*(p?-1:1);a+=Math.pow(2,n),o-=u}return(p?-1:1)*a*Math.pow(2,o-n)},r.write=function(t,e,r,n,i,o){var a,s,l,u=8*o-i-1,c=(1<>1,h=23===i?Math.pow(2,-24)-Math.pow(2,-77):0,p=n?0:o-1,d=n?1:-1,m=e<0||0===e&&1/e<0?1:0;for(e=Math.abs(e),isNaN(e)||e===1/0?(s=isNaN(e)?1:0,a=c):(a=Math.floor(Math.log(e)/Math.LN2),e*(l=Math.pow(2,-a))<1&&(a--,l*=2),(e+=a+f>=1?h/l:h*Math.pow(2,1-f))*l>=2&&(a++,l/=2),a+f>=c?(s=0,a=c):a+f>=1?(s=(e*l-1)*Math.pow(2,i),a+=f):(s=e*Math.pow(2,f-1)*Math.pow(2,i),a=0));i>=8;t[r+p]=255&s,p+=d,s/=256,i-=8);for(a=a<0;t[r+p]=255&a,p+=d,a/=256,u-=8);t[r+p-d]|=128*m}},{}],46:[function(t,e,r){e.exports=[function(t,e){return{options:t,draw:function(e,r,n){n.stop(!0),n.overrideFlag=!0;var i=this;return e.pixelManipulation({output:function(t,e,r){i.output={src:e,format:r}},changePixel:function(t,e,r,n){return[255-t,255-e,255-r,n]},format:e.format,image:t.image,inBrowser:t.inBrowser,callback:r})},output:void 0,UI:e}},{name:"Invert",description:"Inverts the image.",inputs:{}}]},{}],47:[function(t,e,r){"use strict";var n=t("underscore"),i=e.exports={Bitmap:t("./lib/bitmap")};n.extend(i,t("./lib/enums"))},{"./lib/bitmap":48,"./lib/enums":49,underscore:147}],48:[function(t,e,r){(function(r){"use strict";var n=t("fs"),i=(t("underscore"),t("bluebird")),o=t("jpeg-js"),a=t("node-png").PNG,s=t("./enums"),l=t("./utils"),u=t("./resize"),c={r:0,g:0,b:0,a:0},f=e.exports=function(t){t&&(t instanceof f?this._data={data:new r(t.data.data),width:t.width,height:t.height}:t.data?this._data=t:t.width&&t.height&&(this._data={data:new r(4*t.width*t.height),width:t.width,height:t.height},t.color&&this._fill(t.color)))};f.prototype={get width(){return this._data.width},get height(){return this._data.height},attach:function(t){var e=this._data;return this._data=t,e},detach:function(){var t=this._data;return delete this._data,t},_deduceFileType:function(t){if(!t)throw new Error("Can't determine image type");switch(t.substr(-4).toLowerCase()){case".jpg":return s.ImageType.JPG;case".png":return s.ImageType.PNG}if(".jpeg"==t.substr(-5).toLowerCase())return s.ImageType.JPG;throw new Error("Can't recognise image type: "+t)},_readStream:function(t){var e=i.defer(),n=[];return t.on("data",function(t){n.push(t)}),t.on("end",function(){var t=r.concat(n);e.resolve(t)}),t.on("error",function(t){e.reject(t)}),e.promise},_readPNG:function(t){var e=i.defer(),r=new a({filterType:4});return r.on("parsed",function(){e.resolve(r)}),r.on("error",function(t){e.rejecyt(t)}),t.pipe(r),e.promise},_parseOptions:function(t,e){return"number"==typeof(t=t||{})&&(t={type:t}),t.type=t.type||this._deduceFileType(e),t},read:function(t,e){var r=this;switch((e=this._parseOptions(e)).type){case s.ImageType.JPG:return this._readStream(t).then(function(t){r._data=o.decode(t)});case s.ImageType.PNG:return this._readPNG(t).then(function(t){r._data={data:t.data,width:t.width,height:t.height}});default:return i.reject(new Error("Not supported: ImageType "+e.type))}},readFile:function(t,e){var r=this;return 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o},o.prototype._filterUp=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=2);for(var a=0;a0?t[(e-1)*n+a]:0,l=t[e*n+a]-s;r?r[e*i+1+a]=l:o+=Math.abs(l)}return o},o.prototype._filterAvg=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=3);for(var a=0;a=4?t[e*n+a-4]:0,l=e>0?t[(e-1)*n+a]:0,u=t[e*n+a]-(s+l>>1);r?r[e*i+1+a]=u:o+=Math.abs(u)}return o},o.prototype._filterPaeth=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=4);for(var a=0;a=4?t[e*n+a-4]:0,u=e>0?t[(e-1)*n+a]:0,c=a>=4&&e>0?t[(e-1)*n+a-4]:0,f=t[e*n+a]-s(l,u,c);r?r[e*i+1+a]=f:o+=Math.abs(f)}return o};var s=function(t,e,r){var n=t+e-r,i=Math.abs(n-t),o=Math.abs(n-e),a=Math.abs(n-r);return i<=o&&i<=a?t:o<=a?e:r}}).call(this,t("buffer").Buffer)},{"./chunkstream":71,buffer:12,util:152,zlib:10}],75:[function(t,e,r){(function(r){"use strict";var n=t("util"),i=t("stream"),o=t("zlib"),a=t("./filter"),s=t("./crc"),l=t("./constants"),u=e.exports=function(t){i.call(this),this._options=t,t.deflateChunkSize=t.deflateChunkSize||32768,t.deflateLevel=t.deflateLevel||9,t.deflateStrategy=t.deflateStrategy||3,this.readable=!0};n.inherits(u,i),u.prototype.pack=function(t,e,n){this.emit("data",new r(l.PNG_SIGNATURE)),this.emit("data",this._packIHDR(e,n));t=new a(e,n,4,t,this._options).filter();var i=o.createDeflate({chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy});i.on("error",this.emit.bind(this,"error")),i.on("data",function(t){this.emit("data",this._packIDAT(t))}.bind(this)),i.on("end",function(){this.emit("data",this._packIEND()),this.emit("end")}.bind(this)),i.end(t)},u.prototype._packChunk=function(t,e){var n=e?e.length:0,i=new r(n+12);return i.writeUInt32BE(n,0),i.writeUInt32BE(t,4),e&&e.copy(i,8),i.writeInt32BE(s.crc32(i.slice(4,i.length-4)),i.length-4),i},u.prototype._packIHDR=function(t,e){var n=new r(13);return n.writeUInt32BE(t,0),n.writeUInt32BE(e,4),n[8]=8,n[9]=6,n[10]=0,n[11]=0,n[12]=0,this._packChunk(l.TYPE_IHDR,n)},u.prototype._packIDAT=function(t){return this._packChunk(l.TYPE_IDAT,t)},u.prototype._packIEND=function(){return this._packChunk(l.TYPE_IEND,null)}}).call(this,t("buffer").Buffer)},{"./constants":72,"./crc":73,"./filter":74,buffer:12,stream:128,util:152,zlib:10}],76:[function(t,e,r){(function(r){"use strict";var n=t("util"),i=t("zlib"),o=t("./crc"),a=t("./chunkstream"),s=t("./constants"),l=t("./filter"),u=e.exports=function(t){a.call(this),this._options=t,t.checkCRC=!1!==t.checkCRC,this._hasIHDR=!1,this._hasIEND=!1,this._inflate=null,this._filter=null,this._crc=null,this._palette=[],this._colorType=0,this._chunks={},this._chunks[s.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[s.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[s.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[s.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[s.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[s.TYPE_gAMA]=this._handleGAMA.bind(this),this.writable=!0,this.on("error",this._handleError.bind(this)),this._handleSignature()};n.inherits(u,a),u.prototype._handleError=function(){this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy()},u.prototype._handleSignature=function(){this.read(s.PNG_SIGNATURE.length,this._parseSignature.bind(this))},u.prototype._parseSignature=function(t){for(var e=s.PNG_SIGNATURE,r=0;rthis._palette.length)return void this.emit("error",new Error("More transparent colors than palette size"));for(var e=0;e0?this._handleIDAT(t):this._handleChunkEnd()},u.prototype._handleIEND=function(t){this.read(t,this._parseIEND.bind(this))},u.prototype._parseIEND=function(t){this._crc.write(t),this._inflate.end(),this._hasIEND=!0,this._handleChunkEnd()};var c={0:1,2:3,3:1,4:2,6:4};u.prototype._reverseFiltered=function(t,e,r){if(3==this._colorType)for(var n=e<<2,i=0;i0&&this.height>0?new n(4*this.width*this.height):null,t.fill&&this.data&&this.data.fill(0),this.gamma=0,this.readable=this.writable=!0,this._parser=new a(t||{}),this._parser.on("error",this.emit.bind(this,"error")),this._parser.on("close",this._handleClose.bind(this)),this._parser.on("metadata",this._metadata.bind(this)),this._parser.on("gamma",this._gamma.bind(this)),this._parser.on("parsed",function(t){this.data=t,this.emit("parsed",t)}.bind(this)),this._packer=new s(t),this._packer.on("data",this.emit.bind(this,"data")),this._packer.on("end",this.emit.bind(this,"end")),this._parser.on("close",this._handleClose.bind(this)),this._packer.on("error",this.emit.bind(this,"error"))};i.inherits(l,o),l.prototype.pack=function(){return e.nextTick(function(){this._packer.pack(this.data,this.width,this.height)}.bind(this)),this},l.prototype.parse=function(t,e){if(e){var r,n=null;this.once("parsed",r=function(t){this.removeListener("error",n),this.data=t,e(null,this)}.bind(this)),this.once("error",n=function(t){this.removeListener("parsed",r),e(t,null)}.bind(this))}return this.end(t),this},l.prototype.write=function(t){return this._parser.write(t),!0},l.prototype.end=function(t){this._parser.end(t)},l.prototype._metadata=function(t){this.width=t.width,this.height=t.height,this.data=t.data,delete 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0===u?{}:u,e<0||r<0||e>65535||r>65535)throw new Error("x/y invalid.");if(n<=0||o<=0||n>65535||o>65535)throw new Error("Width/Height invalid.");if(l.length>=1;)++p;h=1<3)throw new Error("Disposal out of range.");var g=!1,_=0;if(void 0!==u.transparent&&null!==u.transparent&&(g=!0,(_=u.transparent)<0||_>=h))throw new Error("Transparent color index.");if((0!==v||g||0!==m)&&(t[i++]=33,t[i++]=249,t[i++]=4,t[i++]=v<<2|(!0===g?1:0),t[i++]=255&m,t[i++]=m>>8&255,t[i++]=_,t[i++]=0),t[i++]=44,t[i++]=255&e,t[i++]=e>>8&255,t[i++]=255&r,t[i++]=r>>8&255,t[i++]=255&n,t[i++]=n>>8&255,t[i++]=255&o,t[i++]=o>>8&255,t[i++]=!0===c?128|p-1:0,!0===c)for(var y=0,b=f.length;y>16&255,t[i++]=w>>8&255,t[i++]=255&w}return i=function(t,e,r,n){t[e++]=r;var i=e++,o=1<=r;)t[e++]=255&f,f>>=8,c-=8,e===i+256&&(t[i]=255,i=e++)}function p(t){f|=t<=8;)t[e++]=255&f,f>>=8,c-=8,e===i+256&&(t[i]=255,i=e++);4096===l?(p(o),l=s+1,u=r+1,m={}):(l>=1<>7,s=1<<1+(7&o);t[e++],t[e++];var l=null,u=null;a&&(l=e,u=s,e+=3*s);var c=!0,f=[],h=0,p=null,d=0,m=null;for(this.width=r,this.height=i;c&&e=0))throw Error("Invalid block size");if(0===S)break;e+=S}break;case 249:if(4!==t[e++]||0!==t[e+4])throw new Error("Invalid graphics extension block.");var v=t[e++];h=t[e++]|t[e++]<<8,p=t[e++],0==(1&v)&&(p=null),d=v>>2&7,e++;break;case 254:for(;;){if(!((S=t[e++])>=0))throw Error("Invalid block size");if(0===S)break;e+=S}break;default:throw new Error("Unknown graphic control label: 0x"+t[e-1].toString(16))}break;case 44:var g=t[e++]|t[e++]<<8,_=t[e++]|t[e++]<<8,y=t[e++]|t[e++]<<8,b=t[e++]|t[e++]<<8,w=t[e++],k=w>>6&1,x=1<<1+(7&w),B=l,C=u,E=!1;w>>7&&(E=!0,B=e,C=x,e+=3*x);var P=e;for(e++;;){var S;if(!((S=t[e++])>=0))throw Error("Invalid block size");if(0===S)break;e+=S}f.push({x:g,y:_,width:y,height:b,has_local_palette:E,palette_offset:B,palette_size:C,data_offset:P,data_length:e-P,transparent_index:p,interlaced:!!k,delay:h,disposal:d});break;case 59:c=!1;break;default:throw new Error("Unknown gif block: 0x"+t[e-1].toString(16))}this.numFrames=function(){return f.length},this.loopCount=function(){return m},this.frameInfo=function(t){if(t<0||t>=f.length)throw new Error("Frame index out of range.");return f[t]},this.decodeAndBlitFrameBGRA=function(e,i){var o=this.frameInfo(e),a=o.width*o.height,s=new Uint8Array(a);n(t,o.data_offset,s,a);var l=o.palette_offset,u=o.transparent_index;null===u&&(u=256);var c=o.width,f=r-c,h=c,p=4*(o.y*r+o.x),d=4*((o.y+o.height)*r+o.x),m=p,v=4*f;!0===o.interlaced&&(v+=4*r*7);for(var g=8,_=0,y=s.length;_=d&&(v=4*f+4*r*(g-1),m=p+(c+f)*(g<<1),g>>=1)),b===u)m+=4;else{var w=t[l+3*b],k=t[l+3*b+1],x=t[l+3*b+2];i[m++]=x,i[m++]=k,i[m++]=w,i[m++]=255}--h}},this.decodeAndBlitFrameRGBA=function(e,i){var o=this.frameInfo(e),a=o.width*o.height,s=new Uint8Array(a);n(t,o.data_offset,s,a);var l=o.palette_offset,u=o.transparent_index;null===u&&(u=256);var c=o.width,f=r-c,h=c,p=4*(o.y*r+o.x),d=4*((o.y+o.height)*r+o.x),m=p,v=4*f;!0===o.interlaced&&(v+=4*r*7);for(var g=8,_=0,y=s.length;_=d&&(v=4*f+4*r*(g-1),m=p+(c+f)*(g<<1),g>>=1)),b===u)m+=4;else{var w=t[l+3*b],k=t[l+3*b+1],x=t[l+3*b+2];i[m++]=w,i[m++]=k,i[m++]=x,i[m++]=255}--h}}}}catch(t){}},{}],79:[function(t,e,r){(function(r){var n=t("charm");function i(t){if(!(t=t||{}).total)throw new Error("You MUST specify the total number of operations that will be processed.");this.total=t.total,this.current=0,this.max_burden=t.maxBurden||.5,this.show_burden=t.showBurden||!1,this.started=!1,this.size=50,this.inner_time=0,this.outer_time=0,this.elapsed=0,this.time_start=0,this.time_end=0,this.time_left=0,this.time_burden=0,this.skip_steps=0,this.skipped=0,this.aborted=!1,this.charm=n(),this.charm.pipe(r.stdout),this.charm.write("\n\n\n")}function o(t,e,r){for(r=r||" ";t.length3&&(l[0]=l[0].replace(/\B(?=(?:\d{3})+(?!\d))/g,a)),(l[1]||"").length=this.total&&this.finished(),this.time_end=(new Date).getTime(),this.inner_time=this.time_end-this.time_start)},i.prototype.updateTimes=function(){this.elapsed=this.time_start-this.started,this.time_end>0&&(this.outer_time=this.time_start-this.time_end),this.inner_time>0&&this.outer_time>0&&(this.time_burden=this.inner_time/(this.inner_time+this.outer_time)*100,this.time_left=this.elapsed/this.current*(this.total-this.current),this.time_left<0&&(this.time_left=0)),this.time_burden>this.max_burden&&this.skip_steps0&&this.current>>16&65535|0,a=0;0!==r;){r-=a=r>2e3?2e3:r;do{o=o+(i=i+e[n++]|0)|0}while(--a);i%=65521,o%=65521}return i|o<<16|0}},{}],82:[function(t,e,r){"use strict";e.exports={Z_NO_FLUSH:0,Z_PARTIAL_FLUSH:1,Z_SYNC_FLUSH:2,Z_FULL_FLUSH:3,Z_FINISH:4,Z_BLOCK:5,Z_TREES:6,Z_OK:0,Z_STREAM_END:1,Z_NEED_DICT:2,Z_ERRNO:-1,Z_STREAM_ERROR:-2,Z_DATA_ERROR:-3,Z_BUF_ERROR:-5,Z_NO_COMPRESSION:0,Z_BEST_SPEED:1,Z_BEST_COMPRESSION:9,Z_DEFAULT_COMPRESSION:-1,Z_FILTERED:1,Z_HUFFMAN_ONLY:2,Z_RLE:3,Z_FIXED:4,Z_DEFAULT_STRATEGY:0,Z_BINARY:0,Z_TEXT:1,Z_UNKNOWN:2,Z_DEFLATED:8}},{}],83:[function(t,e,r){"use strict";var n=function(){for(var t,e=[],r=0;r<256;r++){t=r;for(var n=0;n<8;n++)t=1&t?3988292384^t>>>1:t>>>1;e[r]=t}return e}();e.exports=function(t,e,r,i){var o=n,a=i+r;t^=-1;for(var s=i;s>>8^o[255&(t^e[s])];return-1^t}},{}],84:[function(t,e,r){"use strict";var n,i=t("../utils/common"),o=t("./trees"),a=t("./adler32"),s=t("./crc32"),l=t("./messages"),u=0,c=1,f=3,h=4,p=5,d=0,m=1,v=-2,g=-3,_=-5,y=-1,b=1,w=2,k=3,x=4,B=0,C=2,E=8,P=9,S=15,j=8,T=286,M=30,A=19,I=2*T+1,R=15,L=3,O=258,F=O+L+1,D=32,N=42,U=69,z=73,q=91,V=103,G=113,W=666,H=1,Z=2,X=3,Y=4,$=3;function J(t,e){return t.msg=l[e],e}function K(t){return(t<<1)-(t>4?9:0)}function Q(t){for(var e=t.length;--e>=0;)t[e]=0}function tt(t){var e=t.state,r=e.pending;r>t.avail_out&&(r=t.avail_out),0!==r&&(i.arraySet(t.output,e.pending_buf,e.pending_out,r,t.next_out),t.next_out+=r,e.pending_out+=r,t.total_out+=r,t.avail_out-=r,e.pending-=r,0===e.pending&&(e.pending_out=0))}function et(t,e){o._tr_flush_block(t,t.block_start>=0?t.block_start:-1,t.strstart-t.block_start,e),t.block_start=t.strstart,tt(t.strm)}function rt(t,e){t.pending_buf[t.pending++]=e}function nt(t,e){t.pending_buf[t.pending++]=e>>>8&255,t.pending_buf[t.pending++]=255&e}function it(t,e){var r,n,i=t.max_chain_length,o=t.strstart,a=t.prev_length,s=t.nice_match,l=t.strstart>t.w_size-F?t.strstart-(t.w_size-F):0,u=t.window,c=t.w_mask,f=t.prev,h=t.strstart+O,p=u[o+a-1],d=u[o+a];t.prev_length>=t.good_match&&(i>>=2),s>t.lookahead&&(s=t.lookahead);do{if(u[(r=e)+a]===d&&u[r+a-1]===p&&u[r]===u[o]&&u[++r]===u[o+1]){o+=2,r++;do{}while(u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&u[++o]===u[++r]&&oa){if(t.match_start=e,a=n,n>=s)break;p=u[o+a-1],d=u[o+a]}}}while((e=f[e&c])>l&&0!=--i);return a<=t.lookahead?a:t.lookahead}function ot(t){var e,r,n,o,l,u,c,f,h,p,d=t.w_size;do{if(o=t.window_size-t.lookahead-t.strstart,t.strstart>=d+(d-F)){i.arraySet(t.window,t.window,d,d,0),t.match_start-=d,t.strstart-=d,t.block_start-=d,e=r=t.hash_size;do{n=t.head[--e],t.head[e]=n>=d?n-d:0}while(--r);e=r=d;do{n=t.prev[--e],t.prev[e]=n>=d?n-d:0}while(--r);o+=d}if(0===t.strm.avail_in)break;if(u=t.strm,c=t.window,f=t.strstart+t.lookahead,h=o,p=void 0,(p=u.avail_in)>h&&(p=h),r=0===p?0:(u.avail_in-=p,i.arraySet(c,u.input,u.next_in,p,f),1===u.state.wrap?u.adler=a(u.adler,c,p,f):2===u.state.wrap&&(u.adler=s(u.adler,c,p,f)),u.next_in+=p,u.total_in+=p,p),t.lookahead+=r,t.lookahead+t.insert>=L)for(l=t.strstart-t.insert,t.ins_h=t.window[l],t.ins_h=(t.ins_h<=L&&(t.ins_h=(t.ins_h<=L)if(n=o._tr_tally(t,t.strstart-t.match_start,t.match_length-L),t.lookahead-=t.match_length,t.match_length<=t.max_lazy_match&&t.lookahead>=L){t.match_length--;do{t.strstart++,t.ins_h=(t.ins_h<=L&&(t.ins_h=(t.ins_h<4096)&&(t.match_length=L-1)),t.prev_length>=L&&t.match_length<=t.prev_length){i=t.strstart+t.lookahead-L,n=o._tr_tally(t,t.strstart-1-t.prev_match,t.prev_length-L),t.lookahead-=t.prev_length-1,t.prev_length-=2;do{++t.strstart<=i&&(t.ins_h=(t.ins_h<15&&(s=2,n-=16),o<1||o>P||r!==E||n<8||n>15||e<0||e>9||a<0||a>x)return J(t,v);8===n&&(n=9);var l=new function(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=E,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new i.Buf16(2*I),this.dyn_dtree=new i.Buf16(2*(2*M+1)),this.bl_tree=new i.Buf16(2*(2*A+1)),Q(this.dyn_ltree),Q(this.dyn_dtree),Q(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new i.Buf16(R+1),this.heap=new i.Buf16(2*T+1),Q(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new i.Buf16(2*T+1),Q(this.depth),this.l_buf=0,this.lit_bufsize=0,this.last_lit=0,this.d_buf=0,this.opt_len=0,this.static_len=0,this.matches=0,this.insert=0,this.bi_buf=0,this.bi_valid=0};return t.state=l,l.strm=t,l.wrap=s,l.gzhead=null,l.w_bits=n,l.w_size=1<t.pending_buf_size-5&&(r=t.pending_buf_size-5);;){if(t.lookahead<=1){if(ot(t),0===t.lookahead&&e===u)return H;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var n=t.block_start+r;if((0===t.strstart||t.strstart>=n)&&(t.lookahead=t.strstart-n,t.strstart=n,et(t,!1),0===t.strm.avail_out))return H;if(t.strstart-t.block_start>=t.w_size-F&&(et(t,!1),0===t.strm.avail_out))return H}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?X:Y):(t.strstart>t.block_start&&(et(t,!1),t.strm.avail_out),H)}),new lt(4,4,8,4,at),new lt(4,5,16,8,at),new lt(4,6,32,32,at),new lt(4,4,16,16,st),new lt(8,16,32,32,st),new lt(8,16,128,128,st),new lt(8,32,128,256,st),new lt(32,128,258,1024,st),new lt(32,258,258,4096,st)],r.deflateInit=function(t,e){return ft(t,e,E,S,j,B)},r.deflateInit2=ft,r.deflateReset=ct,r.deflateResetKeep=ut,r.deflateSetHeader=function(t,e){return t&&t.state?2!==t.state.wrap?v:(t.state.gzhead=e,d):v},r.deflate=function(t,e){var r,i,a,l;if(!t||!t.state||e>p||e<0)return t?J(t,v):v;if(i=t.state,!t.output||!t.input&&0!==t.avail_in||i.status===W&&e!==h)return J(t,0===t.avail_out?_:v);if(i.strm=t,r=i.last_flush,i.last_flush=e,i.status===N)if(2===i.wrap)t.adler=0,rt(i,31),rt(i,139),rt(i,8),i.gzhead?(rt(i,(i.gzhead.text?1:0)+(i.gzhead.hcrc?2:0)+(i.gzhead.extra?4:0)+(i.gzhead.name?8:0)+(i.gzhead.comment?16:0)),rt(i,255&i.gzhead.time),rt(i,i.gzhead.time>>8&255),rt(i,i.gzhead.time>>16&255),rt(i,i.gzhead.time>>24&255),rt(i,9===i.level?2:i.strategy>=w||i.level<2?4:0),rt(i,255&i.gzhead.os),i.gzhead.extra&&i.gzhead.extra.length&&(rt(i,255&i.gzhead.extra.length),rt(i,i.gzhead.extra.length>>8&255)),i.gzhead.hcrc&&(t.adler=s(t.adler,i.pending_buf,i.pending,0)),i.gzindex=0,i.status=U):(rt(i,0),rt(i,0),rt(i,0),rt(i,0),rt(i,0),rt(i,9===i.level?2:i.strategy>=w||i.level<2?4:0),rt(i,$),i.status=G);else{var g=E+(i.w_bits-8<<4)<<8;g|=(i.strategy>=w||i.level<2?0:i.level<6?1:6===i.level?2:3)<<6,0!==i.strstart&&(g|=D),g+=31-g%31,i.status=G,nt(i,g),0!==i.strstart&&(nt(i,t.adler>>>16),nt(i,65535&t.adler)),t.adler=1}if(i.status===U)if(i.gzhead.extra){for(a=i.pending;i.gzindex<(65535&i.gzhead.extra.length)&&(i.pending!==i.pending_buf_size||(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending!==i.pending_buf_size));)rt(i,255&i.gzhead.extra[i.gzindex]),i.gzindex++;i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),i.gzindex===i.gzhead.extra.length&&(i.gzindex=0,i.status=z)}else i.status=z;if(i.status===z)if(i.gzhead.name){a=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending===i.pending_buf_size)){l=1;break}l=i.gzindexa&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),0===l&&(i.gzindex=0,i.status=q)}else i.status=q;if(i.status===q)if(i.gzhead.comment){a=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending===i.pending_buf_size)){l=1;break}l=i.gzindexa&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),0===l&&(i.status=V)}else i.status=V;if(i.status===V&&(i.gzhead.hcrc?(i.pending+2>i.pending_buf_size&&tt(t),i.pending+2<=i.pending_buf_size&&(rt(i,255&t.adler),rt(i,t.adler>>8&255),t.adler=0,i.status=G)):i.status=G),0!==i.pending){if(tt(t),0===t.avail_out)return i.last_flush=-1,d}else if(0===t.avail_in&&K(e)<=K(r)&&e!==h)return J(t,_);if(i.status===W&&0!==t.avail_in)return J(t,_);if(0!==t.avail_in||0!==i.lookahead||e!==u&&i.status!==W){var y=i.strategy===w?function(t,e){for(var r;;){if(0===t.lookahead&&(ot(t),0===t.lookahead)){if(e===u)return H;break}if(t.match_length=0,r=o._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++,r&&(et(t,!1),0===t.strm.avail_out))return H}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?X:Y):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?H:Z}(i,e):i.strategy===k?function(t,e){for(var r,n,i,a,s=t.window;;){if(t.lookahead<=O){if(ot(t),t.lookahead<=O&&e===u)return H;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=L&&t.strstart>0&&(n=s[i=t.strstart-1])===s[++i]&&n===s[++i]&&n===s[++i]){a=t.strstart+O;do{}while(n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&it.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=L?(r=o._tr_tally(t,1,t.match_length-L),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(r=o._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),r&&(et(t,!1),0===t.strm.avail_out))return H}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?X:Y):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?H:Z}(i,e):n[i.level].func(i,e);if(y!==X&&y!==Y||(i.status=W),y===H||y===X)return 0===t.avail_out&&(i.last_flush=-1),d;if(y===Z&&(e===c?o._tr_align(i):e!==p&&(o._tr_stored_block(i,0,0,!1),e===f&&(Q(i.head),0===i.lookahead&&(i.strstart=0,i.block_start=0,i.insert=0))),tt(t),0===t.avail_out))return i.last_flush=-1,d}return e!==h?d:i.wrap<=0?m:(2===i.wrap?(rt(i,255&t.adler),rt(i,t.adler>>8&255),rt(i,t.adler>>16&255),rt(i,t.adler>>24&255),rt(i,255&t.total_in),rt(i,t.total_in>>8&255),rt(i,t.total_in>>16&255),rt(i,t.total_in>>24&255)):(nt(i,t.adler>>>16),nt(i,65535&t.adler)),tt(t),i.wrap>0&&(i.wrap=-i.wrap),0!==i.pending?d:m)},r.deflateEnd=function(t){var e;return t&&t.state?(e=t.state.status)!==N&&e!==U&&e!==z&&e!==q&&e!==V&&e!==G&&e!==W?J(t,v):(t.state=null,e===G?J(t,g):d):v},r.deflateSetDictionary=function(t,e){var r,n,o,s,l,u,c,f,h=e.length;if(!t||!t.state)return v;if(2===(s=(r=t.state).wrap)||1===s&&r.status!==N||r.lookahead)return v;for(1===s&&(t.adler=a(t.adler,e,h,0)),r.wrap=0,h>=r.w_size&&(0===s&&(Q(r.head),r.strstart=0,r.block_start=0,r.insert=0),f=new i.Buf8(r.w_size),i.arraySet(f,e,h-r.w_size,r.w_size,0),e=f,h=r.w_size),l=t.avail_in,u=t.next_in,c=t.input,t.avail_in=h,t.next_in=0,t.input=e,ot(r);r.lookahead>=L;){n=r.strstart,o=r.lookahead-(L-1);do{r.ins_h=(r.ins_h<>>=b=y>>>24,d-=b,0===(b=y>>>16&255))E[o++]=65535&y;else{if(!(16&b)){if(0==(64&b)){y=m[(65535&y)+(p&(1<>>=b,d-=b),d<15&&(p+=C[n++]<>>=b=y>>>24,d-=b,!(16&(b=y>>>16&255))){if(0==(64&b)){y=v[(65535&y)+(p&(1<l){t.msg="invalid distance too far back",r.mode=30;break t}if(p>>>=b,d-=b,k>(b=o-a)){if((b=k-b)>c&&r.sane){t.msg="invalid distance too far back",r.mode=30;break t}if(x=0,B=h,0===f){if(x+=u-b,b2;)E[o++]=B[x++],E[o++]=B[x++],E[o++]=B[x++],w-=3;w&&(E[o++]=B[x++],w>1&&(E[o++]=B[x++]))}else{x=o-k;do{E[o++]=E[x++],E[o++]=E[x++],E[o++]=E[x++],w-=3}while(w>2);w&&(E[o++]=E[x++],w>1&&(E[o++]=E[x++]))}break}}break}}while(n>3,p&=(1<<(d-=w<<3))-1,t.next_in=n,t.next_out=o,t.avail_in=n>>24&255)+(t>>>8&65280)+((65280&t)<<8)+((255&t)<<24)}function it(t){var e;return t&&t.state?(e=t.state,t.total_in=t.total_out=e.total=0,t.msg="",e.wrap&&(t.adler=1&e.wrap),e.mode=k,e.last=0,e.havedict=0,e.dmax=32768,e.head=null,e.hold=0,e.bits=0,e.lencode=e.lendyn=new n.Buf32(tt),e.distcode=e.distdyn=new n.Buf32(et),e.sane=1,e.back=-1,d):g}function ot(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,it(t)):g}function at(t,e){var r,n;return t&&t.state?(n=t.state,e<0?(r=0,e=-e):(r=1+(e>>4),e<48&&(e&=15)),e&&(e<8||e>15)?g:(null!==n.window&&n.wbits!==e&&(n.window=null),n.wrap=r,n.wbits=e,ot(t))):g}function st(t,e){var r,i;return t?(i=new function(){this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new n.Buf16(320),this.work=new n.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0},t.state=i,i.window=null,(r=at(t,e))!==d&&(t.state=null),r):g}var lt,ut,ct=!0;function ft(t){if(ct){var e;for(lt=new n.Buf32(512),ut=new n.Buf32(32),e=0;e<144;)t.lens[e++]=8;for(;e<256;)t.lens[e++]=9;for(;e<280;)t.lens[e++]=7;for(;e<288;)t.lens[e++]=8;for(s(u,t.lens,0,288,lt,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;s(c,t.lens,0,32,ut,0,t.work,{bits:5}),ct=!1}t.lencode=lt,t.lenbits=9,t.distcode=ut,t.distbits=5}function ht(t,e,r,i){var o,a=t.state;return null===a.window&&(a.wsize=1<=a.wsize?(n.arraySet(a.window,e,r-a.wsize,a.wsize,0),a.wnext=0,a.whave=a.wsize):((o=a.wsize-a.wnext)>i&&(o=i),n.arraySet(a.window,e,r-i,o,a.wnext),(i-=o)?(n.arraySet(a.window,e,r-i,i,0),a.wnext=i,a.whave=a.wsize):(a.wnext+=o,a.wnext===a.wsize&&(a.wnext=0),a.whave>>8&255,r.check=o(r.check,Pt,2,0),st=0,lt=0,r.mode=x;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&st)<<8)+(st>>8))%31){t.msg="incorrect header check",r.mode=J;break}if((15&st)!==w){t.msg="unknown compression method",r.mode=J;break}if(lt-=4,kt=8+(15&(st>>>=4)),0===r.wbits)r.wbits=kt;else if(kt>r.wbits){t.msg="invalid window size",r.mode=J;break}r.dmax=1<>8&1),512&r.flags&&(Pt[0]=255&st,Pt[1]=st>>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0,r.mode=B;case B:for(;lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>8&255,Pt[2]=st>>>16&255,Pt[3]=st>>>24&255,r.check=o(r.check,Pt,4,0)),st=0,lt=0,r.mode=C;case C:for(;lt<16;){if(0===ot)break t;ot--,st+=tt[rt++]<>8),512&r.flags&&(Pt[0]=255&st,Pt[1]=st>>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0,r.mode=E;case E:if(1024&r.flags){for(;lt<16;){if(0===ot)break t;ot--,st+=tt[rt++]<>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0}else r.head&&(r.head.extra=null);r.mode=P;case P:if(1024&r.flags&&((pt=r.length)>ot&&(pt=ot),pt&&(r.head&&(kt=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),n.arraySet(r.head.extra,tt,rt,pt,kt)),512&r.flags&&(r.check=o(r.check,tt,pt,rt)),ot-=pt,rt+=pt,r.length-=pt),r.length))break t;r.length=0,r.mode=S;case S:if(2048&r.flags){if(0===ot)break t;pt=0;do{kt=tt[rt+pt++],r.head&&kt&&r.length<65536&&(r.head.name+=String.fromCharCode(kt))}while(kt&&pt>9&1,r.head.done=!0),t.adler=r.check=0,r.mode=I;break;case M:for(;lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=7<,lt-=7<,r.mode=X;break}for(;lt<3;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=1)){case 0:r.mode=L;break;case 1:if(ft(r),r.mode=z,e===p){st>>>=2,lt-=2;break t}break;case 2:r.mode=D;break;case 3:t.msg="invalid block type",r.mode=J}st>>>=2,lt-=2;break;case L:for(st>>>=7<,lt-=7<lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>16^65535)){t.msg="invalid stored block lengths",r.mode=J;break}if(r.length=65535&st,st=0,lt=0,r.mode=O,e===p)break t;case O:r.mode=F;case F:if(pt=r.length){if(pt>ot&&(pt=ot),pt>at&&(pt=at),0===pt)break t;n.arraySet(et,tt,rt,pt,it),ot-=pt,rt+=pt,at-=pt,it+=pt,r.length-=pt;break}r.mode=I;break;case D:for(;lt<14;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=5,lt-=5,r.ndist=1+(31&st),st>>>=5,lt-=5,r.ncode=4+(15&st),st>>>=4,lt-=4,r.nlen>286||r.ndist>30){t.msg="too many length or distance symbols",r.mode=J;break}r.have=0,r.mode=N;case N:for(;r.have>>=3,lt-=3}for(;r.have<19;)r.lens[St[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,Bt={bits:r.lenbits},xt=s(l,r.lens,0,19,r.lencode,0,r.work,Bt),r.lenbits=Bt.bits,xt){t.msg="invalid code lengths set",r.mode=J;break}r.have=0,r.mode=U;case U:for(;r.have>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=vt,lt-=vt,r.lens[r.have++]=_t;else{if(16===_t){for(Ct=vt+2;lt>>=vt,lt-=vt,0===r.have){t.msg="invalid bit length repeat",r.mode=J;break}kt=r.lens[r.have-1],pt=3+(3&st),st>>>=2,lt-=2}else if(17===_t){for(Ct=vt+3;lt>>=vt)),st>>>=3,lt-=3}else{for(Ct=vt+7;lt>>=vt)),st>>>=7,lt-=7}if(r.have+pt>r.nlen+r.ndist){t.msg="invalid bit length repeat",r.mode=J;break}for(;pt--;)r.lens[r.have++]=kt}}if(r.mode===J)break;if(0===r.lens[256]){t.msg="invalid code -- missing end-of-block",r.mode=J;break}if(r.lenbits=9,Bt={bits:r.lenbits},xt=s(u,r.lens,0,r.nlen,r.lencode,0,r.work,Bt),r.lenbits=Bt.bits,xt){t.msg="invalid literal/lengths set",r.mode=J;break}if(r.distbits=6,r.distcode=r.distdyn,Bt={bits:r.distbits},xt=s(c,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,Bt),r.distbits=Bt.bits,xt){t.msg="invalid distances set",r.mode=J;break}if(r.mode=z,e===p)break t;case z:r.mode=q;case q:if(ot>=6&&at>=258){t.next_out=it,t.avail_out=at,t.next_in=rt,t.avail_in=ot,r.hold=st,r.bits=lt,a(t,ct),it=t.next_out,et=t.output,at=t.avail_out,rt=t.next_in,tt=t.input,ot=t.avail_in,st=r.hold,lt=r.bits,r.mode===I&&(r.back=-1);break}for(r.back=0;gt=(Et=r.lencode[st&(1<>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>yt)])>>>16&255,_t=65535&Et,!(yt+(vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=yt,lt-=yt,r.back+=yt}if(st>>>=vt,lt-=vt,r.back+=vt,r.length=_t,0===gt){r.mode=Z;break}if(32>){r.back=-1,r.mode=I;break}if(64>){t.msg="invalid literal/length code",r.mode=J;break}r.extra=15>,r.mode=V;case V:if(r.extra){for(Ct=r.extra;lt>>=r.extra,lt-=r.extra,r.back+=r.extra}r.was=r.length,r.mode=G;case G:for(;gt=(Et=r.distcode[st&(1<>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>yt)])>>>16&255,_t=65535&Et,!(yt+(vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=yt,lt-=yt,r.back+=yt}if(st>>>=vt,lt-=vt,r.back+=vt,64>){t.msg="invalid distance code",r.mode=J;break}r.offset=_t,r.extra=15>,r.mode=W;case W:if(r.extra){for(Ct=r.extra;lt>>=r.extra,lt-=r.extra,r.back+=r.extra}if(r.offset>r.dmax){t.msg="invalid distance too far back",r.mode=J;break}r.mode=H;case H:if(0===at)break t;if(pt=ct-at,r.offset>pt){if((pt=r.offset-pt)>r.whave&&r.sane){t.msg="invalid distance too far back",r.mode=J;break}pt>r.wnext?(pt-=r.wnext,dt=r.wsize-pt):dt=r.wnext-pt,pt>r.length&&(pt=r.length),mt=r.window}else mt=et,dt=it-r.offset,pt=r.length;pt>at&&(pt=at),at-=pt,r.length-=pt;do{et[it++]=mt[dt++]}while(--pt);0===r.length&&(r.mode=q);break;case Z:if(0===at)break t;et[it++]=r.length,at--,r.mode=q;break;case X:if(r.wrap){for(;lt<32;){if(0===ot)break t;ot--,st|=tt[rt++]<=1&&0===L[E];E--);if(P>E&&(P=E),0===E)return u[c++]=20971520,u[c++]=20971520,h.bits=1,0;for(C=1;C0&&(0===t||1!==E))return-1;for(O[1]=0,x=1;x<15;x++)O[x+1]=O[x]+L[x];for(B=0;B852||2===t&&M>592)return 1;for(;;){y=x-j,f[B]<_?(b=0,w=f[B]):f[B]>_?(b=F[D+f[B]],w=I[R+f[B]]):(b=96,w=0),p=1<>j)+(d-=p)]=y<<24|b<<16|w|0}while(0!==d);for(p=1<>=1;if(0!==p?(A&=p-1,A+=p):A=0,B++,0==--L[x]){if(x===E)break;x=e[r+f[B]]}if(x>P&&(A&v)!==m){for(0===j&&(j=P),g+=C,T=1<<(S=x-j);S+j852||2===t&&M>592)return 1;u[m=A&v]=P<<24|S<<16|g-c|0}}return 0!==A&&(u[g+A]=x-j<<24|64<<16|0),h.bits=P,0}},{"../utils/common":80}],88:[function(t,e,r){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"}},{}],89:[function(t,e,r){"use strict";var n=t("../utils/common"),i=4,o=0,a=1,s=2;function l(t){for(var e=t.length;--e>=0;)t[e]=0}var u=0,c=1,f=2,h=29,p=256,d=p+1+h,m=30,v=19,g=2*d+1,_=15,y=16,b=7,w=256,k=16,x=17,B=18,C=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],E=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],P=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7],S=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],j=new Array(2*(d+2));l(j);var T=new Array(2*m);l(T);var M=new Array(512);l(M);var A=new Array(256);l(A);var I=new Array(h);l(I);var R,L,O,F=new Array(m);function D(t,e,r,n,i){this.static_tree=t,this.extra_bits=e,this.extra_base=r,this.elems=n,this.max_length=i,this.has_stree=t&&t.length}function N(t,e){this.dyn_tree=t,this.max_code=0,this.stat_desc=e}function U(t){return t<256?M[t]:M[256+(t>>>7)]}function z(t,e){t.pending_buf[t.pending++]=255&e,t.pending_buf[t.pending++]=e>>>8&255}function q(t,e,r){t.bi_valid>y-r?(t.bi_buf|=e<>y-t.bi_valid,t.bi_valid+=r-y):(t.bi_buf|=e<>>=1,r<<=1}while(--e>0);return r>>>1}function W(t,e,r){var n,i,o=new 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r,n,i,o,a,s,l=e.dyn_tree,u=e.max_code,c=e.stat_desc.static_tree,f=e.stat_desc.has_stree,h=e.stat_desc.extra_bits,p=e.stat_desc.extra_base,d=e.stat_desc.max_length,m=0;for(o=0;o<=_;o++)t.bl_count[o]=0;for(l[2*t.heap[t.heap_max]+1]=0,r=t.heap_max+1;rd&&(o=d,m++),l[2*n+1]=o,n>u||(t.bl_count[o]++,a=0,n>=p&&(a=h[n-p]),s=l[2*n],t.opt_len+=s*(o+a),f&&(t.static_len+=s*(c[2*n+1]+a)));if(0!==m){do{for(o=d-1;0===t.bl_count[o];)o--;t.bl_count[o]--,t.bl_count[o+1]+=2,t.bl_count[d]--,m-=2}while(m>0);for(o=d;0!==o;o--)for(n=t.bl_count[o];0!==n;)(i=t.heap[--r])>u||(l[2*i+1]!==o&&(t.opt_len+=(o-l[2*i+1])*l[2*i],l[2*i+1]=o),n--)}}(t,e),W(o,u,t.bl_count)}function K(t,e,r){var n,i,o=-1,a=e[1],s=0,l=7,u=4;for(0===a&&(l=138,u=3),e[2*(r+1)+1]=65535,n=0;n<=r;n++)i=a,a=e[2*(n+1)+1],++s>=7;n0?(t.strm.data_type===s&&(t.strm.data_type=function(t){var e,r=4093624447;for(e=0;e<=31;e++,r>>>=1)if(1&r&&0!==t.dyn_ltree[2*e])return o;if(0!==t.dyn_ltree[18]||0!==t.dyn_ltree[20]||0!==t.dyn_ltree[26])return 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a(this._bitmapInfo)},c.prototype._handleTransColor=function(t){this._bitmapInfo.transColor=t},c.prototype._handlePalette=function(t){this._bitmapInfo.palette=t},c.prototype._finished=function(){this.errord||(this._inflate?this._inflate.end():this.emit("error","No Inflate block"),this.destroySoon())},c.prototype._complete=function(t){if(!this.errord){try{var e=l.dataToBitMap(t,this._bitmapInfo),r=u(e,this._bitmapInfo);e=null}catch(t){return void this._handleError(t)}this.emit("parsed",r)}}},{"./bitmapper":92,"./chunkstream":94,"./filter-parse-async":98,"./format-normaliser":101,"./parser":109,util:152,zlib:10}],108:[function(t,e,r){(function(r){"use strict";var n=!0,i=t("zlib");i.deflateSync||(n=!1);var o=t("./sync-reader"),a=t("./filter-parse-sync"),s=t("./parser"),l=t("./bitmapper"),u=t("./format-normaliser");e.exports=function(t,e){if(!n)throw new Error("To use the sync capability of this library in old node versions, please also add a dependency on node-zlb-backport");var c,f,h;var p=[];var d=new o(t);if(new s(e,{read:d.read.bind(d),error:function(t){c=t},metadata:function(t){f=t},gamma:function(t){h=t},palette:function(t){f.palette=t},transColor:function(t){f.transColor=t},inflateData:function(t){p.push(t)}}).start(),d.process(),c)throw c;var m=r.concat(p);p.length=0;var v=i.inflateSync(m);if(m=null,!v||!v.length)throw new Error("bad png - invalid inflate data response");var g=a.process(v,f);m=null;var _=l.dataToBitMap(g,f);g=null;var y=u(_,f);return f.data=y,f.gamma=h||0,f}}).call(this,t("buffer").Buffer)},{"./bitmapper":92,"./filter-parse-sync":99,"./format-normaliser":101,"./parser":109,"./sync-reader":112,buffer:12,zlib:10}],109:[function(t,e,r){(function(r){"use strict";var n=t("./constants"),i=t("./crc"),o=e.exports=function(t,e){this._options=t,t.checkCRC=!1!==t.checkCRC,this._hasIHDR=!1,this._hasIEND=!1,this._palette=[],this._colorType=0,this._chunks={},this._chunks[n.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[n.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[n.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[n.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[n.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[n.TYPE_gAMA]=this._handleGAMA.bind(this),this.read=e.read,this.error=e.error,this.metadata=e.metadata,this.gamma=e.gamma,this.transColor=e.transColor,this.palette=e.palette,this.parsed=e.parsed,this.inflateData=e.inflateData,this.inflateData=e.inflateData,this.finished=e.finished};o.prototype.start=function(){this.read(n.PNG_SIGNATURE.length,this._parseSignature.bind(this))},o.prototype._parseSignature=function(t){for(var e=n.PNG_SIGNATURE,r=0;rthis._palette.length)return void this.error(new Error("More transparent colors than palette size"));for(var e=0;e0?this._handleIDAT(r):this._handleChunkEnd()},o.prototype._handleIEND=function(t){this.read(t,this._parseIEND.bind(this))},o.prototype._parseIEND=function(t){this._crc.write(t),this._hasIEND=!0,this._handleChunkEnd(),this.finished&&this.finished()}}).call(this,t("buffer").Buffer)},{"./constants":95,"./crc":96,buffer:12}],110:[function(t,e,r){"use strict";var n=t("./parser-sync"),i=t("./packer-sync");r.read=function(t,e){return n(t,e||{})},r.write=function(t){return i(t)}},{"./packer-sync":104,"./parser-sync":108}],111:[function(t,e,r){(function(e,n){"use strict";var i=t("util"),o=t("stream"),a=t("./parser-async"),s=t("./packer-async"),l=t("./png-sync"),u=r.PNG=function(t){o.call(this),t=t||{},this.width=t.width||0,this.height=t.height||0,this.data=this.width>0&&this.height>0?new n(4*this.width*this.height):null,t.fill&&this.data&&this.data.fill(0),this.gamma=0,this.readable=this.writable=!0,this._parser=new a(t),this._parser.on("error",this.emit.bind(this,"error")),this._parser.on("close",this._handleClose.bind(this)),this._parser.on("metadata",this._metadata.bind(this)),this._parser.on("gamma",this._gamma.bind(this)),this._parser.on("parsed",function(t){this.data=t,this.emit("parsed",t)}.bind(this)),this._packer=new s(t),this._packer.on("data",this.emit.bind(this,"data")),this._packer.on("end",this.emit.bind(this,"end")),this._parser.on("close",this._handleClose.bind(this)),this._packer.on("error",this.emit.bind(this,"error"))};i.inherits(u,o),u.sync=l,u.prototype.pack=function(){return this.data&&this.data.length?(e.nextTick(function(){this._packer.pack(this.data,this.width,this.height,this.gamma)}.bind(this)),this):(this.emit("error","No data provided"),this)},u.prototype.parse=function(t,e){var r,n;e&&(r=function(t){this.removeListener("error",n),this.data=t,e(null,this)}.bind(this),n=function(t){this.removeListener("parsed",r),e(t,null)}.bind(this),this.once("parsed",r),this.once("error",n));return this.end(t),this},u.prototype.write=function(t){return this._parser.write(t),!0},u.prototype.end=function(t){this._parser.end(t)},u.prototype._metadata=function(t){this.width=t.width,this.height=t.height,this.emit("metadata",t)},u.prototype._gamma=function(t){this.gamma=t},u.prototype._handleClose=function(){this._parser.writable||this._packer.readable||this.emit("close")},u.bitblt=function(t,e,r,n,i,o,a,s){if(r>t.width||n>t.height||r+i>t.width||n+o>t.height)throw new Error("bitblt reading outside image");if(a>e.width||s>e.height||a+i>e.width||s+o>e.height)throw new Error("bitblt writing outside image");for(var l=0;l0&&this._buffer.length;){var t=this._reads[0];if(!this._buffer.length||!(this._buffer.length>=t.length||t.allowLess))break;this._reads.shift();var e=this._buffer;this._buffer=e.slice(t.length),t.func.call(this,e.slice(0,t.length))}return this._reads.length>0?new Error("There are some read requests waitng on finished stream"):this._buffer.length>0?new Error("unrecognised content at end of stream"):void 0}},{}],113:[function(t,e,r){(function(t){"use strict";!t.version||0===t.version.indexOf("v0.")||0===t.version.indexOf("v1.")&&0!==t.version.indexOf("v1.8.")?e.exports={nextTick:function(e,r,n,i){if("function"!=typeof e)throw new TypeError('"callback" argument must be a function');var o,a,s=arguments.length;switch(s){case 0:case 1:return t.nextTick(e);case 2:return t.nextTick(function(){e.call(null,r)});case 3:return t.nextTick(function(){e.call(null,r,n)});case 4:return t.nextTick(function(){e.call(null,r,n,i)});default:for(o=new Array(s-1),a=0;a1)for(var r=1;r0?d(t):b(t)}(t,e);else if(e.objectMode||n&&n.length>0)if(e.ended&&!a){var l=new Error("stream.push() after EOF");t.emit("error",l)}else if(e.endEmitted&&a){l=new Error("stream.unshift() after end event");t.emit("error",l)}else!e.decoder||a||o||(n=e.decoder.write(n)),e.length+=e.objectMode?1:n.length,a?e.buffer.unshift(n):(e.reading=!1,e.buffer.push(n)),e.needReadable&&d(t),function(t,e){e.readingMore||(e.readingMore=!0,r.nextTick(function(){!function(t,e){var r=e.length;for(;!e.reading&&!e.flowing&&!e.ended&&e.lengthe.highWaterMark&&(e.highWaterMark=function(t){if(t>=h)t=h;else{t--;for(var e=1;e<32;e<<=1)t|=t>>e;t++}return t}(t)),t>e.length?e.ended?e.length:(e.needReadable=!0,0):t)}function d(t){var e=t._readableState;e.needReadable=!1,e.emittedReadable||(e.emittedReadable=!0,e.sync?r.nextTick(function(){m(t)}):m(t))}function m(t){t.emit("readable")}function v(t){var e,r=t._readableState;function n(t,n,i){!1===t.write(e)&&r.awaitDrain++}for(r.awaitDrain=0;r.pipesCount&&null!==(e=t.read());)if(1===r.pipesCount?n(r.pipes):w(r.pipes,n),t.emit("data",e),r.awaitDrain>0)return;if(0===r.pipesCount)return r.flowing=!1,void(o.listenerCount(t,"data")>0&&_(t));r.ranOut=!0}function g(){this._readableState.ranOut&&(this._readableState.ranOut=!1,v(this))}function _(t,e){if(t._readableState.flowing)throw new Error("Cannot switch to old mode now.");var n=e||!1,i=!1;t.readable=!0,t.pipe=s.prototype.pipe,t.on=t.addListener=s.prototype.on,t.on("readable",function(){var e;for(i=!0;!n&&null!==(e=t.read());)t.emit("data",e);null===e&&(i=!1,t._readableState.needReadable=!0)}),t.pause=function(){n=!0,this.emit("pause")},t.resume=function(){n=!1,i?r.nextTick(function(){t.emit("readable")}):this.read(0),this.emit("resume")},t.emit("readable")}function y(t,e){var r,n=e.buffer,o=e.length,a=!!e.decoder,s=!!e.objectMode;if(0===n.length)return null;if(0===o)r=null;else if(s)r=n.shift();else if(!t||t>=o)r=a?n.join(""):i.concat(n,o),n.length=0;else{if(t0)throw new Error("endReadable called on non-empty stream");!e.endEmitted&&e.calledRead&&(e.ended=!0,r.nextTick(function(){e.endEmitted||0!==e.length||(e.endEmitted=!0,t.readable=!1,t.emit("end"))}))}function w(t,e){for(var r=0,n=t.length;r0)&&(e.emittedReadable=!1),0===t&&e.needReadable&&(e.length>=e.highWaterMark||e.ended))return d(this),null;if(0===(t=p(t,e))&&e.ended)return r=null,e.length>0&&e.decoder&&(r=y(t,e),e.length-=r.length),0===e.length&&b(this),r;var i=e.needReadable;return e.length-t<=e.highWaterMark&&(i=!0),(e.ended||e.reading)&&(i=!1),i&&(e.reading=!0,e.sync=!0,0===e.length&&(e.needReadable=!0),this._read(e.highWaterMark),e.sync=!1),i&&!e.reading&&(t=p(n,e)),null===(r=t>0?y(t,e):null)&&(e.needReadable=!0,t=0),e.length-=t,0!==e.length||e.ended||(e.needReadable=!0),e.ended&&!e.endEmitted&&0===e.length&&b(this),r},c.prototype._read=function(t){this.emit("error",new Error("not implemented"))},c.prototype.pipe=function(t,e){var i=this,a=this._readableState;switch(a.pipesCount){case 0:a.pipes=t;break;case 1:a.pipes=[a.pipes,t];break;default:a.pipes.push(t)}a.pipesCount+=1;var s=(!e||!1!==e.end)&&t!==r.stdout&&t!==r.stderr?u:f;function l(t){t===i&&f()}function u(){t.end()}a.endEmitted?r.nextTick(s):i.once("end",s),t.on("unpipe",l);var c=function(t){return function(){var e=t._readableState;e.awaitDrain--,0===e.awaitDrain&&v(t)}}(i);function f(){t.removeListener("close",p),t.removeListener("finish",d),t.removeListener("drain",c),t.removeListener("error",h),t.removeListener("unpipe",l),i.removeListener("end",u),i.removeListener("end",f),t._writableState&&!t._writableState.needDrain||c()}function h(e){m(),t.removeListener("error",h),0===o.listenerCount(t,"error")&&t.emit("error",e)}function p(){t.removeListener("finish",d),m()}function d(){t.removeListener("close",p),m()}function m(){i.unpipe(t)}return t.on("drain",c),t._events&&t._events.error?n(t._events.error)?t._events.error.unshift(h):t._events.error=[h,t._events.error]:t.on("error",h),t.once("close",p),t.once("finish",d),t.emit("pipe",i),a.flowing||(this.on("readable",g),a.flowing=!0,r.nextTick(function(){v(i)})),t},c.prototype.unpipe=function(t){var e=this._readableState;if(0===e.pipesCount)return this;if(1===e.pipesCount)return t&&t!==e.pipes?this:(t||(t=e.pipes),e.pipes=null,e.pipesCount=0,this.removeListener("readable",g),e.flowing=!1,t&&t.emit("unpipe",this),this);if(!t){var r=e.pipes,n=e.pipesCount;e.pipes=null,e.pipesCount=0,this.removeListener("readable",g),e.flowing=!1;for(var i=0;i0&&!t[a-1];)a--;o.push({children:[],index:0});var s,l=o[0];for(r=0;r0;)l=o.pop();for(l.index++,o.push(l);o.length<=r;)o.push(s={children:[],index:0}),l.children[l.index]=s.children,l=s;i++}r+10)return p>>--d&1;if(255==(p=e[r++])){var t=e[r++];if(t)throw"unexpected marker: "+(p<<8|t).toString(16)}return d=7,p>>>7}function v(t){for(var e,r=t;null!==(e=m());){if("number"==typeof(r=r[e]))return r;if("object"!=typeof r)throw"invalid huffman sequence"}return null}function g(t){for(var e=0;t>0;){var r=m();if(null===r)return;e=e<<1|r,t--}return e}function _(t){var e=g(t);return e>=1<0)y--;else for(var n=a,i=s;n<=i;){var o=v(e.huffmanTableAC),l=15&o,c=o>>4;if(0!==l)r[t[n+=c]]=_(l)*(1<>4,0===f)o<15?(y=g(o)+(1<>4;if(0!==s)r[t[o+=l]]=_(s),o++;else{if(l<15)break;o+=16}}};var M,A,I,R,L=0;for(A=1==T?i[0].blocksPerLine*i[0].blocksPerColumn:c*n.mcusPerColumn,o||(o=A);L=65488&&M<=65495))break;r+=2}return r-h}function h(t,u){var c,f,h=[],p=u.blocksPerLine,d=u.blocksPerColumn,m=p<<3,v=new Int32Array(64),g=new Uint8Array(64);function _(t,c,f){var h,p,d,m,v,g,_,y,b,w,k=u.quantizationTable,x=f;for(w=0;w<64;w++)x[w]=t[w]*k[w];for(w=0;w<8;++w){var B=8*w;0!=x[1+B]||0!=x[2+B]||0!=x[3+B]||0!=x[4+B]||0!=x[5+B]||0!=x[6+B]||0!=x[7+B]?(h=s*x[0+B]+128>>8,p=s*x[4+B]+128>>8,d=x[2+B],m=x[6+B],v=l*(x[1+B]-x[7+B])+128>>8,y=l*(x[1+B]+x[7+B])+128>>8,g=x[3+B]<<4,_=x[5+B]<<4,b=h-p+1>>1,h=h+p+1>>1,p=b,b=d*a+m*o+128>>8,d=d*o-m*a+128>>8,m=b,b=v-_+1>>1,v=v+_+1>>1,_=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=h-m+1>>1,h=h+m+1>>1,m=b,b=p-d+1>>1,p=p+d+1>>1,d=b,b=v*i+y*n+2048>>12,v=v*n-y*i+2048>>12,y=b,b=g*r+_*e+2048>>12,g=g*e-_*r+2048>>12,_=b,x[0+B]=h+y,x[7+B]=h-y,x[1+B]=p+_,x[6+B]=p-_,x[2+B]=d+g,x[5+B]=d-g,x[3+B]=m+v,x[4+B]=m-v):(b=s*x[0+B]+512>>10,x[0+B]=b,x[1+B]=b,x[2+B]=b,x[3+B]=b,x[4+B]=b,x[5+B]=b,x[6+B]=b,x[7+B]=b)}for(w=0;w<8;++w){var C=w;0!=x[8+C]||0!=x[16+C]||0!=x[24+C]||0!=x[32+C]||0!=x[40+C]||0!=x[48+C]||0!=x[56+C]?(h=s*x[0+C]+2048>>12,p=s*x[32+C]+2048>>12,d=x[16+C],m=x[48+C],v=l*(x[8+C]-x[56+C])+2048>>12,y=l*(x[8+C]+x[56+C])+2048>>12,g=x[24+C],_=x[40+C],b=h-p+1>>1,h=h+p+1>>1,p=b,b=d*a+m*o+2048>>12,d=d*o-m*a+2048>>12,m=b,b=v-_+1>>1,v=v+_+1>>1,_=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=h-m+1>>1,h=h+m+1>>1,m=b,b=p-d+1>>1,p=p+d+1>>1,d=b,b=v*i+y*n+2048>>12,v=v*n-y*i+2048>>12,y=b,b=g*r+_*e+2048>>12,g=g*e-_*r+2048>>12,_=b,x[0+C]=h+y,x[56+C]=h-y,x[8+C]=p+_,x[48+C]=p-_,x[16+C]=d+g,x[40+C]=d-g,x[24+C]=m+v,x[32+C]=m-v):(b=s*f[w+0]+8192>>14,x[0+C]=b,x[8+C]=b,x[16+C]=b,x[24+C]=b,x[32+C]=b,x[40+C]=b,x[48+C]=b,x[56+C]=b)}for(w=0;w<64;++w){var E=128+(x[w]+8>>4);c[w]=E<0?0:E>255?255:E}}for(var y=0;y255?255:t}return u.prototype={load:function(t){var e=new XMLHttpRequest;e.open("GET",t,!0),e.responseType="arraybuffer",e.onload=function(){var t=new 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I=e[r++],R=[];for(U=0;U>4],z.huffmanTableAC=m[15&L],R.push(z)}var O=e[r++],F=e[r++],D=e[r++],N=f(e,r,a,R,s,O,F,D>>4,15&D);r+=N;break;default:if(255==e[r-3]&&e[r-2]>=192&&e[r-2]<=254){r-=3;break}throw"unknown JPEG marker "+g.toString(16)}g=n()}if(1!=d.length)throw"only single frame JPEGs supported";this.width=a.samplesPerLine,this.height=a.scanLines,this.jfif=l,this.adobe=u,this.components=[];for(var U=0;U0?("string"==typeof e||a.objectMode||Object.getPrototypeOf(e)===u.prototype||(e=function(t){return u.from(t)}(e)),n?a.endEmitted?t.emit("error",new Error("stream.unshift() after end event")):w(t,a,e,!0):a.ended?t.emit("error",new Error("stream.push() after EOF")):(a.reading=!1,a.decoder&&!r?(e=a.decoder.write(e),a.objectMode||0!==e.length?w(t,a,e,!1):E(t,a)):w(t,a,e,!1))):n||(a.reading=!1));return function(t){return!t.ended&&(t.needReadable||t.lengthe.highWaterMark&&(e.highWaterMark=function(t){return 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"),t},format:r.format,image:e.image,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":259}],164:[function(t,e,r){e.exports=[t("./Module"),t("./info.json")]},{"./Module":163,"./info.json":165}],165:[function(t,e,r){e.exports={name:"Average",description:"Average all pixel color",inputs:{},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],166:[function(require,module,exports){module.exports=function Dynamic(options,UI,util){var output;function draw(input,callback,progressObj){progressObj.stop(!0),progressObj.overrideFlag=!0;var step=this;"string"==typeof options.func&&eval("options.func = "+options.func);var getPixels=require("get-pixels");"string"==typeof options.offset&&(options.offset=parseInt(options.offset));var priorStep=this.getStep(options.offset);void 0===priorStep.output&&(this.output=input,UI.notify("Offset Unavailable","offset-notification"),callback()),getPixels(priorStep.output.src,function(t,e){return options.firstImagePixels=e,require("../_nomodule/PixelManipulation.js")(input,{output:function(t,e,r){step.output={src:e,format:r}},changePixel:function(t,e,r,n,i,o){var a=options.firstImagePixels;return options.func(t,e,r,n,a.get(i,o,0),a.get(i,o,1),a.get(i,o,2),a.get(i,o,3))},format:input.format,image:options.image,inBrowser:options.inBrowser,callback:callback})})}return options.func=options.func||"function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }",options.offset=options.offset||-2,{options:options,draw:draw,output:output,UI:UI}}},{"../_nomodule/PixelManipulation.js":259,"get-pixels":32}],167:[function(t,e,r){arguments[4][164][0].apply(r,arguments)},{"./Module":166,"./info.json":168,dup:164}],168:[function(t,e,r){e.exports={name:"Blend",description:"Blend two chosen image steps with the given function. Defaults to using the red channel from image 1 and the green and blue and alpha channels of image 2. Easier to use interfaces coming soon!",inputs:{offset:{type:"integer",desc:"Choose which image to blend the current image with. Two steps back is -2, three steps back is -3 etc.",default:-2},blend:{type:"input",desc:"Function to use to blend the two images.",default:"function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],169:[function(t,e,r){e.exports=function(t,e){let r=[[2/159,4/159,5/159,4/159,2/159],[4/159,9/159,12/159,9/159,4/159],[5/159,12/159,15/159,12/159,5/159],[4/159,9/159,12/159,9/159,4/159],[2/159,4/159,5/159,4/159,2/159]],n=t;r=function(t){let e=[];for(let r=t.length-1;r>=0;r--){let n=[];for(let e=t[r].length-1;e>=0;e--)n.push(t[r][e]);e.push(n)}return e}(r);for(let e=0;em;r=0<=m?++c:--c)n[r]=(e-i)/(o-i)*(l[r]-s[r])+s[r];return n}}e.exports=function(t,e){return e.colormap=e.colormap||i.default,"object"==typeof e.colormap?colormapFunction=n(e.colormap):i.hasOwnProperty(e.colormap)?colormapFunction=i[e.colormap]:colormapFunction=i.default,colormapFunction(t/255)};var 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o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(r,n,i,o){var a=(r+n+i)/3,s=t("./Colormap")(a,e);return[s[0],s[1],s[2],255]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":259,"./Colormap":182}],184:[function(t,e,r){arguments[4][164][0].apply(r,arguments)},{"./Module":183,"./info.json":185,dup:164}],185:[function(t,e,r){e.exports={name:"Colormap",description:"Maps brightness values (average of red, green & blue) to a given color lookup table, made up of a set of one more color gradients.\n\nFor example, 'cooler' colors like blue could represent low values, while 'hot' colors like red could represent high values.",inputs:{colormap:{type:"select",desc:"Name of the Colormap",default:"default",values:["default","greyscale","bluwhtgrngis","stretched","fastie","brntogrn","blutoredjet","colors16"]}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],186:[function(t,e,r){var n=t("lodash");e.exports=function(t,e){let r=n.cloneDeep(t);(e=Number(e))<-100&&(e=-100),e>100&&(e=100),e=(100+e)/100,e*=e;for(let n=0;n255&&(i=255);var o=r.get(n,s,1)/255;o-=.5,o*=e,o+=.5,(o*=255)<0&&(o=0),o>255&&(o=255);var a=r.get(n,s,2)/255;a-=.5,a*=e,a+=.5,(a*=255)<0&&(a=0),a>255&&(a=255),t.set(n,s,0,i),t.set(n,s,1,o),t.set(n,s,2,a)}return t}},{lodash:60}],187:[function(t,e,r){e.exports=function(e,r){return e.contrast=e.contrast||70,{options:e,draw:function(r,n,i){i.stop(!0),i.overrideFlag=!0;var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(t,e,r,n){return[t,e,r,n]},extraManipulation:function(r){return r=t("./Contrast")(r,e.contrast)},format:r.format,image:e.image,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":259,"./Contrast":186}],188:[function(t,e,r){arguments[4][164][0].apply(r,arguments)},{"./Module":187,"./info.json":189,dup:164}],189:[function(t,e,r){e.exports={name:"Contrast",description:"Change the contrast of the image by given value",inputs:{contrast:{type:"range",desc:"contrast for the new image, typically -100 to 100",default:"70",min:"-100",max:"100",step:"1"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],190:[function(t,e,r){var n=t("lodash");e.exports=function(t,e,r){let o=function(t,e){for(e=e.split(" "),i=0;i<9;i++)e[i]=Number(e[i])*t;let r=0,n=[];for(i=0;i<3;i++){let t=[];for(j=0;j<3;j++)t.push(e[r]),r+=1;n.push(t)}return n}(e,r),a=n.cloneDeep(t);o=function(t){let e=[];for(let r=t.length-1;r>=0;r--){let n=[];for(let e=t[r].length-1;e>=0;e--)n.push(t[r][e]);e.push(n)}return e}(o);for(let e=0;eRead more",inputs:{constantFactor:{type:"Float",desc:"a constant factor, multiplies all the kernel values by that factor",default:.1111,placeholder:.1111},kernelValues:{type:"String",desc:"nine space separated numbers representing the kernel values in left to right and top to bottom format.",default:"1 1 1 1 1 1 1 1 1",placeholder:"1 1 1 1 1 1 1 1 1"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],194:[function(t,e,r){(function(r){e.exports=function(e,n,i){var o=t("get-pixels"),a=t("save-pixels");n.x=parseInt(n.x)||0,n.y=parseInt(n.y)||0,o(e.src,function(t,o){n.w=parseInt(n.w)||Math.floor(o.shape[0]),n.h=parseInt(n.h)||Math.floor(o.shape[1]),n.backgroundColor=n.backgroundColor||"255 255 255 255";var s=n.x,l=n.y,u=n.w,c=n.h,f=o.shape[0],h=o.shape[1],p=[];backgroundColor=n.backgroundColor.split(" ");for(var d=0;dRead more",inputs:{dither:{type:"select",desc:"Name of the Dithering Algorithm",default:"none",values:["none","floydsteinberg","bayer","Atkinson"]}}}},{}],206:[function(t,e,r){e.exports=function(t,e){e.startingX=e.startingX||0,e.startingY=e.startingY||0;var r=Number(e.startingX),n=Number(e.startingY),i=t.shape[0],o=t.shape[1],a=e.endX=Number(e.endX)||i-1,s=e.endY=Number(e.endY)||o-1,l=Number(e.thickness)||1,u=e.color||"0 0 0 255";u=u.split(" ");var c=function(e,r,n,o,a,s,c,f=1){for(var h=0;hInfragrammar.",inputs:{red:{type:"input",desc:"Expression to return for red channel with R, G, B, and A inputs",default:"r"},green:{type:"input",desc:"Expression to return for green channel with R, G, B, and A inputs",default:"g"},blue:{type:"input",desc:"Expression to return for blue channel with R, G, B, and A inputs",default:"b"},"monochrome (fallback)":{type:"input",desc:"Expression to return with R, G, B, and A inputs; fallback for other channels if none provided",default:"r + g + b"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],213:[function(t,e,r){t("lodash");const n=[[-1,0,1],[-2,0,2],[-1,0,1]],i=[[-1,-2,-1],[0,0,0],[1,2,1]];function o(t,e,r,o,a){let s=0;for(let e=0;e<3;e++)for(let r=0;r<3;r++){let i=o+e-1,l=a+r-1;s+=t.get(i,l,0)*n[e][r]}let l=0;for(let e=0;e<3;e++)for(let r=0;r<3;r++){let n=o+e-1,s=a+r-1;l+=t.get(n,s,0)*i[e][r]}return{pixel:[e,e,e,Math.sqrt(Math.pow(s,2)+Math.pow(l,2))],angle:Math.atan2(l,s)}}e.exports=function(t,e,r,n){let i=[],l=[];for(var u=0;ut.map(a));for(let n=1;n=-22.5&&o<=22.5||o<-157.5&&o>=-180?e[n][i]>=e[n][i+1]&&e[n][i]>=e[n][i-1]?t.set(n,i,3,e[n][i]):t.set(n,i,3,0):o>=22.5&&o<=67.5||o<-112.5&&o>=-157.5?e[n][i]>=e[n+1][i+1]&&e[n][i]>=e[n-1][i-1]?t.set(n,i,3,e[n][i]):t.set(n,i,3,0):o>=67.5&&o<=112.5||o<-67.5&&o>=-112.5?e[n][n]>=e[n+1][i]&&e[n][i]>=e[n][i]?t.set(n,i,3,e[n][i]):t.set(n,i,3,0):(o>=112.5&&o<=157.5||o<-22.5&&o>=-67.5)&&(e[n][i]>=e[n+1][i-1]&&e[n][i]>=e[n-1][i+1]?t.set(n,i,3,e[n][i]):t.set(n,i,3,0))}}(t,l,i),function(t,e,r,n,i,o){const a=s(n)*e,l=a*r;for(let e=0;el?n[e][r]>a?i.push(s):o.push(s):t.set(e,r,3,0)}i.forEach(e=>t.set(e[0],e[1],3,255))}(t,e,r,l,[],[]),t};var a=t=>180*t/Math.PI,s=t=>Math.max(...t.map(t=>t.map(t=>t||0)).map(t=>Math.max(...t)))},{lodash:60}],214:[function(t,e,r){e.exports=function(e,r){return e.blur=e.blur||2,e.highThresholdRatio=e.highThresholdRatio||.2,e.lowThresholdRatio=e.lowThresholdRatio||.15,{options:e,draw:function(r,n,i){i.stop(!0),i.overrideFlag=!0;var o=this;return 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this._promise},s.prototype._init=function t(r,o){var s=n(this._values,this._promise);if(s instanceof e){var l=(s=s._target())._bitField;if(this._values=s,0==(50397184&l))return this._promise._setAsyncGuaranteed(),s._then(t,this._reject,void 0,this,o);if(0==(33554432&l))return 0!=(16777216&l)?this._reject(s._reason()):this._cancel();s=s._value()}if(null!==(s=a.asArray(s)))0!==s.length?this._iterate(s):-5===o?this._resolveEmptyArray():this._resolve(function(t){switch(t){case-2:return[];case-3:return{};case-6:return new Map}}(o));else{var c=i("expecting an array or an iterable object but got "+a.classString(s)).reason();this._promise._rejectCallback(c,!1)}},s.prototype._iterate=function(t){var r=this.getActualLength(t.length);this._length=r,this._values=this.shouldCopyValues()?new Array(r):this._values;for(var i=this._promise,o=!1,a=null,s=0;s=this._length&&(this._resolve(this._values),!0)},s.prototype._promiseCancelled=function(){return 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this._values.length-this.length()},c.prototype._addRejected=function(t){this._values.push(t)},c.prototype._addFulfilled=function(t){this._values[this._totalResolved++]=t},c.prototype._canPossiblyFulfill=function(){return this.length()-this._rejected()},c.prototype._getRangeError=function(t){var e="Input array must contain at least "+this._howMany+" items but contains only "+t+" items";return new o(e)},c.prototype._resolveEmptyArray=function(){this._reject(this._getRangeError(0))},e.some=function(t,e){return u(t,e)},e.prototype.some=function(t){return u(this,t)},e._SomePromiseArray=c}},{"./errors":12,"./util":36}],32:[function(t,e,r){"use strict";e.exports=function(t){function e(t){void 0!==t?(t=t._target(),this._bitField=t._bitField,this._settledValueField=t._isFateSealed()?t._settledValue():void 0):(this._bitField=0,this._settledValueField=void 0)}e.prototype._settledValue=function(){return this._settledValueField};var r=e.prototype.value=function(){if(!this.isFulfilled())throw new 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\n\tgl_FragColor = texture;\n}\n"},{}],25:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec3 uLensS;\nuniform vec2 uLensF;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord * vec2(1.0, -1.0)/ 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tfloat scale = uLensS.z;\n\tvec3 vPos = vPosition;\n\tfloat Fx = uLensF.x;\n\tfloat Fy = uLensF.y;\n\tvec2 vMapping = vPos.xy;\n\tvMapping.x = vMapping.x + ((pow(vPos.y, 2.0)/scale)*vPos.x/scale)*-Fx;\n\tvMapping.y = vMapping.y + ((pow(vPos.x, 2.0)/scale)*vPos.y/scale)*-Fy;\n\tvMapping = vMapping * uLensS.xy;\n\tvMapping = GLCoord2TextureCoord(vMapping/scale);\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t}\n\tgl_FragColor = texture;\n}\n"},{}],26:[function(t,e,r){e.exports="#ifdef GL_ES\nprecision highp float;\n#endif\nuniform vec4 uLens;\nuniform vec2 uFov;\nuniform sampler2D uSampler;\nvarying vec3 vPosition;\nvarying vec2 vTextureCoord;\nvec2 TextureCoord2GLCoord(vec2 textureCoord) {\n\treturn (textureCoord - vec2(0.5, 0.5)) * 2.0;\n}\nvec2 GLCoord2TextureCoord(vec2 glCoord) {\n\treturn glCoord / 2.0 + vec2(0.5, 0.5);\n}\nvoid main(void){\n\tvec2 vMapping = vec2(vTextureCoord.x, 1.0 - vTextureCoord.y);\n\tvMapping = TextureCoord2GLCoord(vMapping);\n\t//TODO insert Code\n\tfloat F = uLens.x/ uLens.w;\n\tfloat seta = length(vMapping) / F;\n\tvMapping = sin(seta) * F / length(vMapping) * vMapping;\n\tvMapping *= uLens.w * 1.414;\n\tvMapping = GLCoord2TextureCoord(vMapping);\n\tvec4 texture = texture2D(uSampler, vMapping);\n\tif(vMapping.x > 0.99 || vMapping.x < 0.01 || vMapping.y > 0.99 || vMapping.y < 0.01){\n\t\ttexture = vec4(0.0, 0.0, 0.0, 1.0);\n\t} \n\tgl_FragColor = 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k(t);P.call(this,t,o.GUNZIP)}function x(t){if(!(this instanceof x))return new x(t);P.call(this,t,o.DEFLATERAW)}function B(t){if(!(this instanceof B))return new B(t);P.call(this,t,o.INFLATERAW)}function C(t){if(!(this instanceof C))return new C(t);P.call(this,t,o.UNZIP)}function E(t){return t===o.Z_NO_FLUSH||t===o.Z_PARTIAL_FLUSH||t===o.Z_SYNC_FLUSH||t===o.Z_FULL_FLUSH||t===o.Z_FINISH||t===o.Z_BLOCK}function P(t,e){var a=this;if(this._opts=t=t||{},this._chunkSize=t.chunkSize||r.Z_DEFAULT_CHUNK,i.call(this,t),t.flush&&!E(t.flush))throw new Error("Invalid flush flag: "+t.flush);if(t.finishFlush&&!E(t.finishFlush))throw new Error("Invalid flush flag: "+t.finishFlush);if(this._flushFlag=t.flush||o.Z_NO_FLUSH,this._finishFlushFlag=void 0!==t.finishFlush?t.finishFlush:o.Z_FINISH,t.chunkSize&&(t.chunkSizer.Z_MAX_CHUNK))throw new Error("Invalid chunk size: "+t.chunkSize);if(t.windowBits&&(t.windowBitsr.Z_MAX_WINDOWBITS))throw new Error("Invalid windowBits: "+t.windowBits);if(t.level&&(t.levelr.Z_MAX_LEVEL))throw new Error("Invalid compression level: "+t.level);if(t.memLevel&&(t.memLevelr.Z_MAX_MEMLEVEL))throw new Error("Invalid memLevel: "+t.memLevel);if(t.strategy&&t.strategy!=r.Z_FILTERED&&t.strategy!=r.Z_HUFFMAN_ONLY&&t.strategy!=r.Z_RLE&&t.strategy!=r.Z_FIXED&&t.strategy!=r.Z_DEFAULT_STRATEGY)throw new Error("Invalid strategy: "+t.strategy);if(t.dictionary&&!n.isBuffer(t.dictionary))throw new Error("Invalid dictionary: it should be a Buffer instance");this._handle=new o.Zlib(e);var s=this;this._hadError=!1,this._handle.onerror=function(t,e){S(s),s._hadError=!0;var n=new Error(t);n.errno=e,n.code=r.codes[e],s.emit("error",n)};var l=r.Z_DEFAULT_COMPRESSION;"number"==typeof t.level&&(l=t.level);var c=r.Z_DEFAULT_STRATEGY;"number"==typeof t.strategy&&(c=t.strategy),this._handle.init(t.windowBits||r.Z_DEFAULT_WINDOWBITS,l,t.memLevel||r.Z_DEFAULT_MEMLEVEL,c,t.dictionary),this._buffer=n.allocUnsafe(this._chunkSize),this._offset=0,this._level=l,this._strategy=c,this.once("end",this.close),Object.defineProperty(this,"_closed",{get:function(){return!a._handle},configurable:!0,enumerable:!0})}function S(t,r){r&&e.nextTick(r),t._handle&&(t._handle.close(),t._handle=null)}function j(t){t.emit("close")}Object.defineProperty(r,"codes",{enumerable:!0,value:Object.freeze(p),writable:!1}),r.Deflate=y,r.Inflate=b,r.Gzip=w,r.Gunzip=k,r.DeflateRaw=x,r.InflateRaw=B,r.Unzip=C,r.createDeflate=function(t){return new y(t)},r.createInflate=function(t){return new b(t)},r.createDeflateRaw=function(t){return new x(t)},r.createInflateRaw=function(t){return new B(t)},r.createGzip=function(t){return new w(t)},r.createGunzip=function(t){return new k(t)},r.createUnzip=function(t){return new C(t)},r.deflate=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new y(e),t,r)},r.deflateSync=function(t,e){return _(new y(e),t)},r.gzip=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new w(e),t,r)},r.gzipSync=function(t,e){return _(new w(e),t)},r.deflateRaw=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new x(e),t,r)},r.deflateRawSync=function(t,e){return _(new x(e),t)},r.unzip=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new C(e),t,r)},r.unzipSync=function(t,e){return _(new C(e),t)},r.inflate=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new b(e),t,r)},r.inflateSync=function(t,e){return _(new b(e),t)},r.gunzip=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new k(e),t,r)},r.gunzipSync=function(t,e){return _(new k(e),t)},r.inflateRaw=function(t,e,r){return"function"==typeof e&&(r=e,e={}),g(new B(e),t,r)},r.inflateRawSync=function(t,e){return _(new B(e),t)},a.inherits(P,i),P.prototype.params=function(t,n,i){if(tr.Z_MAX_LEVEL)throw new RangeError("Invalid compression level: 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g=E+(i.w_bits-8<<4)<<8;g|=(i.strategy>=w||i.level<2?0:i.level<6?1:6===i.level?2:3)<<6,0!==i.strstart&&(g|=D),g+=31-g%31,i.status=G,nt(i,g),0!==i.strstart&&(nt(i,t.adler>>>16),nt(i,65535&t.adler)),t.adler=1}if(i.status===U)if(i.gzhead.extra){for(a=i.pending;i.gzindex<(65535&i.gzhead.extra.length)&&(i.pending!==i.pending_buf_size||(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending!==i.pending_buf_size));)rt(i,255&i.gzhead.extra[i.gzindex]),i.gzindex++;i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),i.gzindex===i.gzhead.extra.length&&(i.gzindex=0,i.status=z)}else i.status=z;if(i.status===z)if(i.gzhead.name){a=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending===i.pending_buf_size)){l=1;break}l=i.gzindexa&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),0===l&&(i.gzindex=0,i.status=q)}else i.status=q;if(i.status===q)if(i.gzhead.comment){a=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>a&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),tt(t),a=i.pending,i.pending===i.pending_buf_size)){l=1;break}l=i.gzindexa&&(t.adler=s(t.adler,i.pending_buf,i.pending-a,a)),0===l&&(i.status=V)}else i.status=V;if(i.status===V&&(i.gzhead.hcrc?(i.pending+2>i.pending_buf_size&&tt(t),i.pending+2<=i.pending_buf_size&&(rt(i,255&t.adler),rt(i,t.adler>>8&255),t.adler=0,i.status=G)):i.status=G),0!==i.pending){if(tt(t),0===t.avail_out)return i.last_flush=-1,d}else if(0===t.avail_in&&K(e)<=K(r)&&e!==h)return J(t,_);if(i.status===H&&0!==t.avail_in)return J(t,_);if(0!==t.avail_in||0!==i.lookahead||e!==c&&i.status!==H){var y=i.strategy===w?function(t,e){for(var r;;){if(0===t.lookahead&&(ot(t),0===t.lookahead)){if(e===c)return W;break}if(t.match_length=0,r=o._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++,r&&(et(t,!1),0===t.strm.avail_out))return W}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?X:Y):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?W:Z}(i,e):i.strategy===k?function(t,e){for(var r,n,i,a,s=t.window;;){if(t.lookahead<=O){if(ot(t),t.lookahead<=O&&e===c)return W;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=L&&t.strstart>0&&(n=s[i=t.strstart-1])===s[++i]&&n===s[++i]&&n===s[++i]){a=t.strstart+O;do{}while(n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&n===s[++i]&&it.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=L?(r=o._tr_tally(t,1,t.match_length-L),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(r=o._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),r&&(et(t,!1),0===t.strm.avail_out))return W}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?X:Y):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?W:Z}(i,e):n[i.level].func(i,e);if(y!==X&&y!==Y||(i.status=H),y===W||y===X)return 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t&&t.state?(e=t.state,t.total_in=t.total_out=e.total=0,t.msg="",e.wrap&&(t.adler=1&e.wrap),e.mode=k,e.last=0,e.havedict=0,e.dmax=32768,e.head=null,e.hold=0,e.bits=0,e.lencode=e.lendyn=new n.Buf32(tt),e.distcode=e.distdyn=new n.Buf32(et),e.sane=1,e.back=-1,d):g}function ot(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,it(t)):g}function at(t,e){var r,n;return t&&t.state?(n=t.state,e<0?(r=0,e=-e):(r=1+(e>>4),e<48&&(e&=15)),e&&(e<8||e>15)?g:(null!==n.window&&n.wbits!==e&&(n.window=null),n.wrap=r,n.wbits=e,ot(t))):g}function st(t,e){var r,i;return t?(i=new function(){this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new 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null===a.window&&(a.wsize=1<=a.wsize?(n.arraySet(a.window,e,r-a.wsize,a.wsize,0),a.wnext=0,a.whave=a.wsize):((o=a.wsize-a.wnext)>i&&(o=i),n.arraySet(a.window,e,r-i,o,a.wnext),(i-=o)?(n.arraySet(a.window,e,r-i,i,0),a.wnext=i,a.whave=a.wsize):(a.wnext+=o,a.wnext===a.wsize&&(a.wnext=0),a.whave>>8&255,r.check=o(r.check,Pt,2,0),st=0,lt=0,r.mode=x;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&st)<<8)+(st>>8))%31){t.msg="incorrect header check",r.mode=J;break}if((15&st)!==w){t.msg="unknown compression method",r.mode=J;break}if(lt-=4,kt=8+(15&(st>>>=4)),0===r.wbits)r.wbits=kt;else if(kt>r.wbits){t.msg="invalid window size",r.mode=J;break}r.dmax=1<>8&1),512&r.flags&&(Pt[0]=255&st,Pt[1]=st>>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0,r.mode=B;case B:for(;lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>8&255,Pt[2]=st>>>16&255,Pt[3]=st>>>24&255,r.check=o(r.check,Pt,4,0)),st=0,lt=0,r.mode=C;case C:for(;lt<16;){if(0===ot)break t;ot--,st+=tt[rt++]<>8),512&r.flags&&(Pt[0]=255&st,Pt[1]=st>>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0,r.mode=E;case E:if(1024&r.flags){for(;lt<16;){if(0===ot)break t;ot--,st+=tt[rt++]<>>8&255,r.check=o(r.check,Pt,2,0)),st=0,lt=0}else r.head&&(r.head.extra=null);r.mode=P;case P:if(1024&r.flags&&((pt=r.length)>ot&&(pt=ot),pt&&(r.head&&(kt=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),n.arraySet(r.head.extra,tt,rt,pt,kt)),512&r.flags&&(r.check=o(r.check,tt,pt,rt)),ot-=pt,rt+=pt,r.length-=pt),r.length))break t;r.length=0,r.mode=S;case S:if(2048&r.flags){if(0===ot)break t;pt=0;do{kt=tt[rt+pt++],r.head&&kt&&r.length<65536&&(r.head.name+=String.fromCharCode(kt))}while(kt&&pt>9&1,r.head.done=!0),t.adler=r.check=0,r.mode=I;break;case M:for(;lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=7<,lt-=7<,r.mode=X;break}for(;lt<3;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=1)){case 0:r.mode=L;break;case 1:if(ft(r),r.mode=z,e===p){st>>>=2,lt-=2;break t}break;case 2:r.mode=D;break;case 3:t.msg="invalid block type",r.mode=J}st>>>=2,lt-=2;break;case L:for(st>>>=7<,lt-=7<lt<32;){if(0===ot)break t;ot--,st+=tt[rt++]<>>16^65535)){t.msg="invalid stored block lengths",r.mode=J;break}if(r.length=65535&st,st=0,lt=0,r.mode=O,e===p)break t;case O:r.mode=F;case F:if(pt=r.length){if(pt>ot&&(pt=ot),pt>at&&(pt=at),0===pt)break t;n.arraySet(et,tt,rt,pt,it),ot-=pt,rt+=pt,at-=pt,it+=pt,r.length-=pt;break}r.mode=I;break;case D:for(;lt<14;){if(0===ot)break t;ot--,st+=tt[rt++]<>>=5,lt-=5,r.ndist=1+(31&st),st>>>=5,lt-=5,r.ncode=4+(15&st),st>>>=4,lt-=4,r.nlen>286||r.ndist>30){t.msg="too many length or distance symbols",r.mode=J;break}r.have=0,r.mode=N;case N:for(;r.have>>=3,lt-=3}for(;r.have<19;)r.lens[St[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,Bt={bits:r.lenbits},xt=s(l,r.lens,0,19,r.lencode,0,r.work,Bt),r.lenbits=Bt.bits,xt){t.msg="invalid code lengths set",r.mode=J;break}r.have=0,r.mode=U;case U:for(;r.have>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=vt,lt-=vt,r.lens[r.have++]=_t;else{if(16===_t){for(Ct=vt+2;lt>>=vt,lt-=vt,0===r.have){t.msg="invalid bit length repeat",r.mode=J;break}kt=r.lens[r.have-1],pt=3+(3&st),st>>>=2,lt-=2}else if(17===_t){for(Ct=vt+3;lt>>=vt)),st>>>=3,lt-=3}else{for(Ct=vt+7;lt>>=vt)),st>>>=7,lt-=7}if(r.have+pt>r.nlen+r.ndist){t.msg="invalid bit length repeat",r.mode=J;break}for(;pt--;)r.lens[r.have++]=kt}}if(r.mode===J)break;if(0===r.lens[256]){t.msg="invalid code -- missing end-of-block",r.mode=J;break}if(r.lenbits=9,Bt={bits:r.lenbits},xt=s(c,r.lens,0,r.nlen,r.lencode,0,r.work,Bt),r.lenbits=Bt.bits,xt){t.msg="invalid literal/lengths set",r.mode=J;break}if(r.distbits=6,r.distcode=r.distdyn,Bt={bits:r.distbits},xt=s(u,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,Bt),r.distbits=Bt.bits,xt){t.msg="invalid distances set",r.mode=J;break}if(r.mode=z,e===p)break t;case z:r.mode=q;case q:if(ot>=6&&at>=258){t.next_out=it,t.avail_out=at,t.next_in=rt,t.avail_in=ot,r.hold=st,r.bits=lt,a(t,ut),it=t.next_out,et=t.output,at=t.avail_out,rt=t.next_in,tt=t.input,ot=t.avail_in,st=r.hold,lt=r.bits,r.mode===I&&(r.back=-1);break}for(r.back=0;gt=(Et=r.lencode[st&(1<>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>yt)])>>>16&255,_t=65535&Et,!(yt+(vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=yt,lt-=yt,r.back+=yt}if(st>>>=vt,lt-=vt,r.back+=vt,r.length=_t,0===gt){r.mode=Z;break}if(32>){r.back=-1,r.mode=I;break}if(64>){t.msg="invalid literal/length code",r.mode=J;break}r.extra=15>,r.mode=V;case V:if(r.extra){for(Ct=r.extra;lt>>=r.extra,lt-=r.extra,r.back+=r.extra}r.was=r.length,r.mode=G;case G:for(;gt=(Et=r.distcode[st&(1<>>16&255,_t=65535&Et,!((vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>yt)])>>>16&255,_t=65535&Et,!(yt+(vt=Et>>>24)<=lt);){if(0===ot)break t;ot--,st+=tt[rt++]<>>=yt,lt-=yt,r.back+=yt}if(st>>>=vt,lt-=vt,r.back+=vt,64>){t.msg="invalid distance code",r.mode=J;break}r.offset=_t,r.extra=15>,r.mode=H;case H:if(r.extra){for(Ct=r.extra;lt>>=r.extra,lt-=r.extra,r.back+=r.extra}if(r.offset>r.dmax){t.msg="invalid distance too far back",r.mode=J;break}r.mode=W;case W:if(0===at)break t;if(pt=ut-at,r.offset>pt){if((pt=r.offset-pt)>r.whave&&r.sane){t.msg="invalid distance too far back",r.mode=J;break}pt>r.wnext?(pt-=r.wnext,dt=r.wsize-pt):dt=r.wnext-pt,pt>r.length&&(pt=r.length),mt=r.window}else mt=et,dt=it-r.offset,pt=r.length;pt>at&&(pt=at),at-=pt,r.length-=pt;do{et[it++]=mt[dt++]}while(--pt);0===r.length&&(r.mode=q);break;case Z:if(0===at)break t;et[it++]=r.length,at--,r.mode=q;break;case X:if(r.wrap){for(;lt<32;){if(0===ot)break t;ot--,st|=tt[rt++]<=1&&0===L[E];E--);if(P>E&&(P=E),0===E)return c[u++]=20971520,c[u++]=20971520,h.bits=1,0;for(C=1;C0&&(0===t||1!==E))return-1;for(O[1]=0,x=1;x<15;x++)O[x+1]=O[x]+L[x];for(B=0;B852||2===t&&M>592)return 1;for(;;){y=x-j,f[B]<_?(b=0,w=f[B]):f[B]>_?(b=F[D+f[B]],w=I[R+f[B]]):(b=96,w=0),p=1<>j)+(d-=p)]=y<<24|b<<16|w|0}while(0!==d);for(p=1<>=1;if(0!==p?(A&=p-1,A+=p):A=0,B++,0==--L[x]){if(x===E)break;x=e[r+f[B]]}if(x>P&&(A&v)!==m){for(0===j&&(j=P),g+=C,T=1<<(S=x-j);S+j852||2===t&&M>592)return 1;c[m=A&v]=P<<24|S<<16|g-u|0}}return 0!==A&&(c[g+A]=x-j<<24|64<<16|0),h.bits=P,0}},{"../utils/common":49}],57:[function(t,e,r){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream error","-3":"data error","-4":"insufficient memory","-5":"buffer error","-6":"incompatible version"}},{}],58:[function(t,e,r){"use strict";var n=t("../utils/common"),i=4,o=0,a=1,s=2;function l(t){for(var e=t.length;--e>=0;)t[e]=0}var c=0,u=1,f=2,h=29,p=256,d=p+1+h,m=30,v=19,g=2*d+1,_=15,y=16,b=7,w=256,k=16,x=17,B=18,C=[0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0],E=[0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13],P=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7],S=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15],j=new Array(2*(d+2));l(j);var T=new Array(2*m);l(T);var M=new Array(512);l(M);var A=new Array(256);l(A);var I=new Array(h);l(I);var R,L,O,F=new Array(m);function D(t,e,r,n,i){this.static_tree=t,this.extra_bits=e,this.extra_base=r,this.elems=n,this.max_length=i,this.has_stree=t&&t.length}function N(t,e){this.dyn_tree=t,this.max_code=0,this.stat_desc=e}function U(t){return t<256?M[t]:M[256+(t>>>7)]}function z(t,e){t.pending_buf[t.pending++]=255&e,t.pending_buf[t.pending++]=e>>>8&255}function q(t,e,r){t.bi_valid>y-r?(t.bi_buf|=e<>y-t.bi_valid,t.bi_valid+=r-y):(t.bi_buf|=e<>>=1,r<<=1}while(--e>0);return r>>>1}function H(t,e,r){var n,i,o=new Array(_+1),a=0;for(n=1;n<=_;n++)o[n]=a=a+r[n-1]<<1;for(i=0;i<=e;i++){var s=t[2*i+1];0!==s&&(t[2*i]=G(o[s]++,s))}}function W(t){var e;for(e=0;e8?z(t,t.bi_buf):t.bi_valid>0&&(t.pending_buf[t.pending++]=t.bi_buf),t.bi_buf=0,t.bi_valid=0}function X(t,e,r,n){var i=2*e,o=2*r;return t[i]>1;r>=1;r--)Y(t,o,r);i=l;do{r=t.heap[1],t.heap[1]=t.heap[t.heap_len--],Y(t,o,1),n=t.heap[1],t.heap[--t.heap_max]=r,t.heap[--t.heap_max]=n,o[2*i]=o[2*r]+o[2*n],t.depth[i]=(t.depth[r]>=t.depth[n]?t.depth[r]:t.depth[n])+1,o[2*r+1]=o[2*n+1]=i,t.heap[1]=i++,Y(t,o,1)}while(t.heap_len>=2);t.heap[--t.heap_max]=t.heap[1],function(t,e){var r,n,i,o,a,s,l=e.dyn_tree,c=e.max_code,u=e.stat_desc.static_tree,f=e.stat_desc.has_stree,h=e.stat_desc.extra_bits,p=e.stat_desc.extra_base,d=e.stat_desc.max_length,m=0;for(o=0;o<=_;o++)t.bl_count[o]=0;for(l[2*t.heap[t.heap_max]+1]=0,r=t.heap_max+1;rd&&(o=d,m++),l[2*n+1]=o,n>c||(t.bl_count[o]++,a=0,n>=p&&(a=h[n-p]),s=l[2*n],t.opt_len+=s*(o+a),f&&(t.static_len+=s*(u[2*n+1]+a)));if(0!==m){do{for(o=d-1;0===t.bl_count[o];)o--;t.bl_count[o]--,t.bl_count[o+1]+=2,t.bl_count[d]--,m-=2}while(m>0);for(o=d;0!==o;o--)for(n=t.bl_count[o];0!==n;)(i=t.heap[--r])>c||(l[2*i+1]!==o&&(t.opt_len+=(o-l[2*i+1])*l[2*i],l[2*i+1]=o),n--)}}(t,e),H(o,c,t.bl_count)}function K(t,e,r){var n,i,o=-1,a=e[1],s=0,l=7,c=4;for(0===a&&(l=138,c=3),e[2*(r+1)+1]=65535,n=0;n<=r;n++)i=a,a=e[2*(n+1)+1],++s>=7;n0?(t.strm.data_type===s&&(t.strm.data_type=function(t){var e,r=4093624447;for(e=0;e<=31;e++,r>>>=1)if(1&r&&0!==t.dyn_ltree[2*e])return o;if(0!==t.dyn_ltree[18]||0!==t.dyn_ltree[20]||0!==t.dyn_ltree[26])return a;for(e=32;e=3&&0===t.bl_tree[2*S[e]+1];e--);return t.opt_len+=3*(e+1)+5+5+4,e}(t),l=t.opt_len+3+7>>>3,(c=t.static_len+3+7>>>3)<=l&&(l=c)):l=c=r+5,r+4<=l&&-1!==e?et(t,e,r,n):t.strategy===i||c===l?(q(t,(u<<1)+(n?1:0),3),$(t,j,T)):(q(t,(f<<1)+(n?1:0),3),function(t,e,r,n){var i;for(q(t,e-257,5),q(t,r-1,5),q(t,n-4,4),i=0;i>>8&255,t.pending_buf[t.d_buf+2*t.last_lit+1]=255&e,t.pending_buf[t.l_buf+t.last_lit]=255&r,t.last_lit++,0===e?t.dyn_ltree[2*r]++:(t.matches++,e--,t.dyn_ltree[2*(A[r]+p+1)]++,t.dyn_dtree[2*U(e)]++),t.last_lit===t.lit_bufsize-1},r._tr_align=function(t){q(t,u<<1,3),V(t,w,j),function(t){16===t.bi_valid?(z(t,t.bi_buf),t.bi_buf=0,t.bi_valid=0):t.bi_valid>=8&&(t.pending_buf[t.pending++]=255&t.bi_buf,t.bi_buf>>=8,t.bi_valid-=8)}(t)}},{"../utils/common":49}],59:[function(t,e,r){"use strict";e.exports=function(){this.input=null,this.next_in=0,this.avail_in=0,this.total_in=0,this.output=null,this.next_out=0,this.avail_out=0,this.total_out=0,this.msg="",this.state=null,this.data_type=2,this.adler=0}},{}],60:[function(t,e,r){r.read=function(t,e,r,n,i){var o,a,s=8*i-n-1,l=(1<>1,u=-7,f=r?i-1:0,h=r?-1:1,p=t[e+f];for(f+=h,o=p&(1<<-u)-1,p>>=-u,u+=s;u>0;o=256*o+t[e+f],f+=h,u-=8);for(a=o&(1<<-u)-1,o>>=-u,u+=n;u>0;a=256*a+t[e+f],f+=h,u-=8);if(0===o)o=1-c;else{if(o===l)return a?NaN:1/0*(p?-1:1);a+=Math.pow(2,n),o-=c}return(p?-1:1)*a*Math.pow(2,o-n)},r.write=function(t,e,r,n,i,o){var 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n=t("underscore"),i=e.exports={Bitmap:t("./lib/bitmap")};n.extend(i,t("./lib/enums"))},{"./lib/bitmap":63,"./lib/enums":64,underscore:145}],63:[function(t,e,r){(function(r){"use strict";var n=t("fs"),i=(t("underscore"),t("bluebird")),o=t("jpeg-js"),a=t("node-png").PNG,s=t("./enums"),l=t("./utils"),c=t("./resize"),u={r:0,g:0,b:0,a:0},f=e.exports=function(t){t&&(t instanceof f?this._data={data:new r(t.data.data),width:t.width,height:t.height}:t.data?this._data=t:t.width&&t.height&&(this._data={data:new r(4*t.width*t.height),width:t.width,height:t.height},t.color&&this._fill(t.color)))};f.prototype={get width(){return this._data.width},get height(){return this._data.height},attach:function(t){var e=this._data;return this._data=t,e},detach:function(){var t=this._data;return delete this._data,t},_deduceFileType:function(t){if(!t)throw new Error("Can't determine image type");switch(t.substr(-4).toLowerCase()){case".jpg":return s.ImageType.JPG;case".png":return 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o},o.prototype._filterUp=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=2);for(var a=0;a0?t[(e-1)*n+a]:0,l=t[e*n+a]-s;r?r[e*i+1+a]=l:o+=Math.abs(l)}return o},o.prototype._filterAvg=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=3);for(var a=0;a=4?t[e*n+a-4]:0,l=e>0?t[(e-1)*n+a]:0,c=t[e*n+a]-(s+l>>1);r?r[e*i+1+a]=c:o+=Math.abs(c)}return o},o.prototype._filterPaeth=function(t,e,r){var n=this._width<<2,i=n+1,o=0;r&&(r[e*i]=4);for(var a=0;a=4?t[e*n+a-4]:0,c=e>0?t[(e-1)*n+a]:0,u=a>=4&&e>0?t[(e-1)*n+a-4]:0,f=t[e*n+a]-s(l,c,u);r?r[e*i+1+a]=f:o+=Math.abs(f)}return o};var s=function(t,e,r){var n=t+e-r,i=Math.abs(n-t),o=Math.abs(n-e),a=Math.abs(n-r);return i<=o&&i<=a?t:o<=a?e:r}}).call(this,t("buffer").Buffer)},{"./chunkstream":86,buffer:47,util:150,zlib:45}],90:[function(t,e,r){(function(r){"use strict";var n=t("util"),i=t("stream"),o=t("zlib"),a=t("./filter"),s=t("./crc"),l=t("./constants"),c=e.exports=function(t){i.call(this),this._options=t,t.deflateChunkSize=t.deflateChunkSize||32768,t.deflateLevel=t.deflateLevel||9,t.deflateStrategy=t.deflateStrategy||3,this.readable=!0};n.inherits(c,i),c.prototype.pack=function(t,e,n){this.emit("data",new r(l.PNG_SIGNATURE)),this.emit("data",this._packIHDR(e,n));t=new a(e,n,4,t,this._options).filter();var i=o.createDeflate({chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy});i.on("error",this.emit.bind(this,"error")),i.on("data",function(t){this.emit("data",this._packIDAT(t))}.bind(this)),i.on("end",function(){this.emit("data",this._packIEND()),this.emit("end")}.bind(this)),i.end(t)},c.prototype._packChunk=function(t,e){var n=e?e.length:0,i=new r(n+12);return i.writeUInt32BE(n,0),i.writeUInt32BE(t,4),e&&e.copy(i,8),i.writeInt32BE(s.crc32(i.slice(4,i.length-4)),i.length-4),i},c.prototype._packIHDR=function(t,e){var n=new r(13);return n.writeUInt32BE(t,0),n.writeUInt32BE(e,4),n[8]=8,n[9]=6,n[10]=0,n[11]=0,n[12]=0,this._packChunk(l.TYPE_IHDR,n)},c.prototype._packIDAT=function(t){return this._packChunk(l.TYPE_IDAT,t)},c.prototype._packIEND=function(){return this._packChunk(l.TYPE_IEND,null)}}).call(this,t("buffer").Buffer)},{"./constants":87,"./crc":88,"./filter":89,buffer:47,stream:139,util:150,zlib:45}],91:[function(t,e,r){(function(r){"use strict";var n=t("util"),i=t("zlib"),o=t("./crc"),a=t("./chunkstream"),s=t("./constants"),l=t("./filter"),c=e.exports=function(t){a.call(this),this._options=t,t.checkCRC=!1!==t.checkCRC,this._hasIHDR=!1,this._hasIEND=!1,this._inflate=null,this._filter=null,this._crc=null,this._palette=[],this._colorType=0,this._chunks={},this._chunks[s.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[s.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[s.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[s.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[s.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[s.TYPE_gAMA]=this._handleGAMA.bind(this),this.writable=!0,this.on("error",this._handleError.bind(this)),this._handleSignature()};n.inherits(c,a),c.prototype._handleError=function(){this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy()},c.prototype._handleSignature=function(){this.read(s.PNG_SIGNATURE.length,this._parseSignature.bind(this))},c.prototype._parseSignature=function(t){for(var e=s.PNG_SIGNATURE,r=0;rthis._palette.length)return void this.emit("error",new Error("More transparent colors than palette size"));for(var e=0;e0?this._handleIDAT(t):this._handleChunkEnd()},c.prototype._handleIEND=function(t){this.read(t,this._parseIEND.bind(this))},c.prototype._parseIEND=function(t){this._crc.write(t),this._inflate.end(),this._hasIEND=!0,this._handleChunkEnd()};var u={0:1,2:3,3:1,4:2,6:4};c.prototype._reverseFiltered=function(t,e,r){if(3==this._colorType)for(var n=e<<2,i=0;i0&&this.height>0?new n(4*this.width*this.height):null,t.fill&&this.data&&this.data.fill(0),this.gamma=0,this.readable=this.writable=!0,this._parser=new a(t||{}),this._parser.on("error",this.emit.bind(this,"error")),this._parser.on("close",this._handleClose.bind(this)),this._parser.on("metadata",this._metadata.bind(this)),this._parser.on("gamma",this._gamma.bind(this)),this._parser.on("parsed",function(t){this.data=t,this.emit("parsed",t)}.bind(this)),this._packer=new s(t),this._packer.on("data",this.emit.bind(this,"data")),this._packer.on("end",this.emit.bind(this,"end")),this._parser.on("close",this._handleClose.bind(this)),this._packer.on("error",this.emit.bind(this,"error"))};i.inherits(l,o),l.prototype.pack=function(){return e.nextTick(function(){this._packer.pack(this.data,this.width,this.height)}.bind(this)),this},l.prototype.parse=function(t,e){if(e){var r,n=null;this.once("parsed",r=function(t){this.removeListener("error",n),this.data=t,e(null,this)}.bind(this)),this.once("error",n=function(t){this.removeListener("parsed",r),e(t,null)}.bind(this))}return this.end(t),this},l.prototype.write=function(t){return this._parser.write(t),!0},l.prototype.end=function(t){this._parser.end(t)},l.prototype._metadata=function(t){this.width=t.width,this.height=t.height,this.data=t.data,delete 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0===c?{}:c,e<0||r<0||e>65535||r>65535)throw new Error("x/y invalid.");if(n<=0||o<=0||n>65535||o>65535)throw new Error("Width/Height invalid.");if(l.length>=1;)++p;h=1<3)throw new Error("Disposal out of range.");var g=!1,_=0;if(void 0!==c.transparent&&null!==c.transparent&&(g=!0,(_=c.transparent)<0||_>=h))throw new Error("Transparent color index.");if((0!==v||g||0!==m)&&(t[i++]=33,t[i++]=249,t[i++]=4,t[i++]=v<<2|(!0===g?1:0),t[i++]=255&m,t[i++]=m>>8&255,t[i++]=_,t[i++]=0),t[i++]=44,t[i++]=255&e,t[i++]=e>>8&255,t[i++]=255&r,t[i++]=r>>8&255,t[i++]=255&n,t[i++]=n>>8&255,t[i++]=255&o,t[i++]=o>>8&255,t[i++]=!0===u?128|p-1:0,!0===u)for(var y=0,b=f.length;y>16&255,t[i++]=w>>8&255,t[i++]=255&w}return i=function(t,e,r,n){t[e++]=r;var i=e++,o=1<=r;)t[e++]=255&f,f>>=8,u-=8,e===i+256&&(t[i]=255,i=e++)}function p(t){f|=t<=8;)t[e++]=255&f,f>>=8,u-=8,e===i+256&&(t[i]=255,i=e++);4096===l?(p(o),l=s+1,c=r+1,m={}):(l>=1<>7,s=1<<1+(7&o);t[e++],t[e++];var l=null,c=null;a&&(l=e,c=s,e+=3*s);var u=!0,f=[],h=0,p=null,d=0,m=null;for(this.width=r,this.height=i;u&&e=0))throw Error("Invalid block size");if(0===S)break;e+=S}break;case 249:if(4!==t[e++]||0!==t[e+4])throw new Error("Invalid graphics extension block.");var v=t[e++];h=t[e++]|t[e++]<<8,p=t[e++],0==(1&v)&&(p=null),d=v>>2&7,e++;break;case 254:for(;;){if(!((S=t[e++])>=0))throw Error("Invalid block size");if(0===S)break;e+=S}break;default:throw new Error("Unknown graphic control label: 0x"+t[e-1].toString(16))}break;case 44:var g=t[e++]|t[e++]<<8,_=t[e++]|t[e++]<<8,y=t[e++]|t[e++]<<8,b=t[e++]|t[e++]<<8,w=t[e++],k=w>>6&1,x=1<<1+(7&w),B=l,C=c,E=!1;w>>7&&(E=!0,B=e,C=x,e+=3*x);var P=e;for(e++;;){var S;if(!((S=t[e++])>=0))throw Error("Invalid block size");if(0===S)break;e+=S}f.push({x:g,y:_,width:y,height:b,has_local_palette:E,palette_offset:B,palette_size:C,data_offset:P,data_length:e-P,transparent_index:p,interlaced:!!k,delay:h,disposal:d});break;case 59:u=!1;break;default:throw new Error("Unknown gif block: 0x"+t[e-1].toString(16))}this.numFrames=function(){return f.length},this.loopCount=function(){return m},this.frameInfo=function(t){if(t<0||t>=f.length)throw new Error("Frame index out of range.");return f[t]},this.decodeAndBlitFrameBGRA=function(e,i){var o=this.frameInfo(e),a=o.width*o.height,s=new Uint8Array(a);n(t,o.data_offset,s,a);var l=o.palette_offset,c=o.transparent_index;null===c&&(c=256);var u=o.width,f=r-u,h=u,p=4*(o.y*r+o.x),d=4*((o.y+o.height)*r+o.x),m=p,v=4*f;!0===o.interlaced&&(v+=4*r*7);for(var g=8,_=0,y=s.length;_=d&&(v=4*f+4*r*(g-1),m=p+(u+f)*(g<<1),g>>=1)),b===c)m+=4;else{var w=t[l+3*b],k=t[l+3*b+1],x=t[l+3*b+2];i[m++]=x,i[m++]=k,i[m++]=w,i[m++]=255}--h}},this.decodeAndBlitFrameRGBA=function(e,i){var o=this.frameInfo(e),a=o.width*o.height,s=new Uint8Array(a);n(t,o.data_offset,s,a);var l=o.palette_offset,c=o.transparent_index;null===c&&(c=256);var u=o.width,f=r-u,h=u,p=4*(o.y*r+o.x),d=4*((o.y+o.height)*r+o.x),m=p,v=4*f;!0===o.interlaced&&(v+=4*r*7);for(var g=8,_=0,y=s.length;_=d&&(v=4*f+4*r*(g-1),m=p+(u+f)*(g<<1),g>>=1)),b===c)m+=4;else{var w=t[l+3*b],k=t[l+3*b+1],x=t[l+3*b+2];i[m++]=w,i[m++]=k,i[m++]=x,i[m++]=255}--h}}}}catch(t){}},{}],94:[function(t,e,r){(function(r){var n=t("charm");function i(t){if(!(t=t||{}).total)throw new Error("You MUST specify the total number of operations that will be processed.");this.total=t.total,this.current=0,this.max_burden=t.maxBurden||.5,this.show_burden=t.showBurden||!1,this.started=!1,this.size=50,this.inner_time=0,this.outer_time=0,this.elapsed=0,this.time_start=0,this.time_end=0,this.time_left=0,this.time_burden=0,this.skip_steps=0,this.skipped=0,this.aborted=!1,this.charm=n(),this.charm.pipe(r.stdout),this.charm.write("\n\n\n")}function o(t,e,r){for(r=r||" ";t.length3&&(l[0]=l[0].replace(/\B(?=(?:\d{3})+(?!\d))/g,a)),(l[1]||"").length=this.total&&this.finished(),this.time_end=(new Date).getTime(),this.inner_time=this.time_end-this.time_start)},i.prototype.updateTimes=function(){this.elapsed=this.time_start-this.started,this.time_end>0&&(this.outer_time=this.time_start-this.time_end),this.inner_time>0&&this.outer_time>0&&(this.time_burden=this.inner_time/(this.inner_time+this.outer_time)*100,this.time_left=this.elapsed/this.current*(this.total-this.current),this.time_left<0&&(this.time_left=0)),this.time_burden>this.max_burden&&this.skip_steps0&&this.current=0;n--){var i=t[n];"."===i?t.splice(n,1):".."===i?(t.splice(n,1),r++):r&&(t.splice(n,1),r--)}if(e)for(;r--;r)t.unshift("..");return t}function n(t,e){if(t.filter)return t.filter(e);for(var r=[],n=0;n=-1&&!i;o--){var a=o>=0?arguments[o]:t.cwd();if("string"!=typeof a)throw new TypeError("Arguments to path.resolve must be strings");a&&(r=a+"/"+r,i="/"===a.charAt(0))}return r=e(n(r.split("/"),function(t){return!!t}),!i).join("/"),(i?"/":"")+r||"."},r.normalize=function(t){var o=r.isAbsolute(t),a="/"===i(t,-1);return(t=e(n(t.split("/"),function(t){return!!t}),!o).join("/"))||o||(t="."),t&&a&&(t+="/"),(o?"/":"")+t},r.isAbsolute=function(t){return"/"===t.charAt(0)},r.join=function(){var t=Array.prototype.slice.call(arguments,0);return r.normalize(n(t,function(t,e){if("string"!=typeof t)throw new TypeError("Arguments to path.join must be strings");return t}).join("/"))},r.relative=function(t,e){function n(t){for(var e=0;e=0&&""===t[r];r--);return e>r?[]:t.slice(e,r-e+1)}t=r.resolve(t).substr(1),e=r.resolve(e).substr(1);for(var i=n(t.split("/")),o=n(e.split("/")),a=Math.min(i.length,o.length),s=a,l=0;l=1;--o)if(47===(e=t.charCodeAt(o))){if(!i){n=o;break}}else i=!1;return-1===n?r?"/":".":r&&1===n?"/":t.slice(0,n)},r.basename=function(t,e){var r=function(t){"string"!=typeof t&&(t+="");var e,r=0,n=-1,i=!0;for(e=t.length-1;e>=0;--e)if(47===t.charCodeAt(e)){if(!i){r=e+1;break}}else-1===n&&(i=!1,n=e+1);return-1===n?"":t.slice(r,n)}(t);return e&&r.substr(-1*e.length)===e&&(r=r.substr(0,r.length-e.length)),r},r.extname=function(t){"string"!=typeof t&&(t+="");for(var e=-1,r=0,n=-1,i=!0,o=0,a=t.length-1;a>=0;--a){var s=t.charCodeAt(a);if(47!==s)-1===n&&(i=!1,n=a+1),46===s?-1===e?e=a:1!==o&&(o=1):-1!==e&&(o=-1);else if(!i){r=a+1;break}}return-1===e||-1===n||0===o||1===o&&e===n-1&&e===r+1?"":t.slice(e,n)};var i="b"==="ab".substr(-1)?function(t,e,r){return t.substr(e,r)}:function(t,e,r){return e<0&&(e=t.length+e),t.substr(e,r)}}).call(this,t("_process"))},{_process:117}],96:[function(t,e,r){(function(e){"use strict";var n=t("./interlace"),i={1:{0:0,1:0,2:0,3:255},2:{0:0,1:0,2:0,3:1},3:{0:0,1:1,2:2,3:255},4:{0:0,1:1,2:2,3:3}};function o(t,e,r,n,o,a){for(var s=t.width,l=t.height,c=t.index,u=0;u>4,r.push(f,u);break;case 2:l=3&h,c=h>>2&3,u=h>>4&3,f=h>>6&3,r.push(f,u,c,l);break;case 1:i=1&h,o=h>>1&1,a=h>>2&1,s=h>>3&1,l=h>>4&1,c=h>>5&1,u=h>>6&1,f=h>>7&1,r.push(f,u,c,l,s,a,o,i)}}return{get:function(t){for(;r.length0&&(this._paused=!1,this.emit("drain"))}.bind(this))},a.prototype.write=function(t,e){return this.writable?(r=n.isBuffer(t)?t:new n(t,e||this._encoding),this._buffers.push(r),this._buffered+=r.length,this._process(),this._reads&&0===this._reads.length&&(this._paused=!0),this.writable&&!this._paused):(this.emit("error",new Error("Stream not writable")),!1);var r},a.prototype.end=function(t,e){t&&this.write(t,e),this.writable=!1,this._buffers&&(0===this._buffers.length?this._end():(this._buffers.push(null),this._process()))},a.prototype.destroySoon=a.prototype.end,a.prototype._end=function(){this._reads.length>0&&this.emit("error",new Error("There are some read requests waitng on finished stream")),this.destroy()},a.prototype.destroy=function(){this._buffers&&(this.writable=!1,this._reads=null,this._buffers=null,this.emit("close"))},a.prototype._processReadAllowingLess=function(t){this._reads.shift();var e=this._buffers[0];e.length>t.length?(this._buffered-=t.length,this._buffers[0]=e.slice(t.length),t.func.call(this,e.slice(0,t.length))):(this._buffered-=e.length,this._buffers.shift(),t.func.call(this,e))},a.prototype._processRead=function(t){this._reads.shift();for(var e=0,r=0,i=new n(t.length);e0&&this._buffers.splice(0,r),this._buffered-=t.length,t.func.call(this,i)},a.prototype._process=function(){try{for(;this._buffered>0&&this._reads&&this._reads.length>0;){var t=this._reads[0];if(t.allowLess)this._processReadAllowingLess(t);else{if(!(this._buffered>=t.length))break;this._processRead(t)}}this._buffers&&this._buffers.length>0&&null===this._buffers[0]&&this._end()}catch(t){this.emit("error",t)}}}).call(this,t("_process"),t("buffer").Buffer)},{_process:117,buffer:47,stream:139,util:150}],99:[function(t,e,r){"use strict";e.exports={PNG_SIGNATURE:[137,80,78,71,13,10,26,10],TYPE_IHDR:1229472850,TYPE_IEND:1229278788,TYPE_IDAT:1229209940,TYPE_PLTE:1347179589,TYPE_tRNS:1951551059,TYPE_gAMA:1732332865,COLORTYPE_GRAYSCALE:0,COLORTYPE_PALETTE:1,COLORTYPE_COLOR:2,COLORTYPE_ALPHA:4,COLORTYPE_PALETTE_COLOR:3,COLORTYPE_COLOR_ALPHA:6,COLORTYPE_TO_BPP_MAP:{0:1,2:3,3:1,4:2,6:4},GAMMA_DIVISION:1e5}},{}],100:[function(t,e,r){"use strict";var n=[];!function(){for(var t=0;t<256;t++){for(var e=t,r=0;r<8;r++)1&e?e=3988292384^e>>>1:e>>>=1;n[t]=e}}();var i=e.exports=function(){this._crc=-1};i.prototype.write=function(t){for(var e=0;e>>8;return!0},i.prototype.crc32=function(){return-1^this._crc},i.crc32=function(t){for(var e=-1,r=0;r>>8;return-1^e}},{}],101:[function(t,e,r){(function(r){"use strict";var n=t("./paeth-predictor");var i={0:function(t,e,r,n,i){t.copy(n,i,e,e+r)},1:function(t,e,r,n,i,o){for(var a=0;a=o?t[e+a-o]:0,l=t[e+a]-s;n[i+a]=l}},2:function(t,e,r,n,i){for(var o=0;o0?t[e+o-r]:0,s=t[e+o]-a;n[i+o]=s}},3:function(t,e,r,n,i,o){for(var a=0;a=o?t[e+a-o]:0,l=e>0?t[e+a-r]:0,c=t[e+a]-(s+l>>1);n[i+a]=c}},4:function(t,e,r,i,o,a){for(var s=0;s=a?t[e+s-a]:0,c=e>0?t[e+s-r]:0,u=e>0&&s>=a?t[e+s-(r+a)]:0,f=t[e+s]-n(l,c,u);i[o+s]=f}}},o={0:function(t,e,r){for(var n=0,i=e+r,o=e;o=n?t[e+o-n]:0,s=t[e+o]-a;i+=Math.abs(s)}return i},2:function(t,e,r){for(var n=0,i=e+r,o=e;o0?t[o-r]:0,s=t[o]-a;n+=Math.abs(s)}return n},3:function(t,e,r,n){for(var i=0,o=0;o=n?t[e+o-n]:0,s=e>0?t[e+o-r]:0,l=t[e+o]-(a+s>>1);i+=Math.abs(l)}return i},4:function(t,e,r,i){for(var o=0,a=0;a=i?t[e+a-i]:0,l=e>0?t[e+a-r]:0,c=e>0&&a>=i?t[e+a-(r+i)]:0,u=t[e+a]-n(s,l,c);o+=Math.abs(u)}return o}};e.exports=function(t,e,n,a,s){var l;if("filterType"in a&&-1!==a.filterType){if("number"!=typeof a.filterType)throw new Error("unrecognised filter types");l=[a.filterType]}else l=[0,1,2,3,4];for(var c=e*s,u=0,f=0,h=new r((c+1)*n),p=l[0],d=0;d1)for(var m=1/0,v=0;vi?e[o-n]:0;e[o]=a+s}},a.prototype._unFilterType2=function(t,e,r){for(var n=this._lastLine,i=0;ii?e[a-n]:0,u=Math.floor((c+l)/2);e[a]=s+u}},a.prototype._unFilterType4=function(t,e,r){for(var n=this._xComparison,o=n-1,a=this._lastLine,s=0;so?e[s-n]:0,f=s>o&&a?a[s-n]:0,h=i(u,c,f);e[s]=l+h}},a.prototype._reverseFilterLine=function(t){var e,n=t[0],i=this._images[this._imageIndex],o=i.byteWidth;if(0===n)e=t.slice(1,o+1);else switch(e=new r(o),n){case 1:this._unFilterType1(t,e,o);break;case 2:this._unFilterType2(t,e,o);break;case 3:this._unFilterType3(t,e,o);break;case 4:this._unFilterType4(t,e,o);break;default:throw new Error("Unrecognised filter type - "+n)}this.write(e),i.lineIndex++,i.lineIndex>=i.height?(this._lastLine=null,this._imageIndex++,i=this._images[this._imageIndex]):this._lastLine=e,i?this.read(i.byteWidth+1,this._reverseFilterLine.bind(this)):(this._lastLine=null,this.complete())}}).call(this,t("buffer").Buffer)},{"./interlace":106,"./paeth-predictor":110,buffer:47}],105:[function(t,e,r){(function(t){"use strict";e.exports=function(e,r){var n=r.depth,i=r.width,o=r.height,a=r.colorType,s=r.transColor,l=r.palette,c=e;return 3===a?function(t,e,r,n,i){for(var o=0,a=0;a0&&f>0&&r.push({width:u,height:f,index:l})}return r},r.getInterlaceIterator=function(t){return function(e,r,i){var o=e%n[i].x.length,a=(e-o)/n[i].x.length*8+n[i].x[o],s=r%n[i].y.length;return 4*a+((r-s)/n[i].y.length*8+n[i].y[s])*t*4}}},{}],107:[function(t,e,r){(function(r){"use strict";var n=t("util"),i=t("stream"),o=t("./constants"),a=t("./packer"),s=e.exports=function(t){i.call(this);var e=t||{};this._packer=new a(e),this._deflate=this._packer.createDeflate(),this.readable=!0};n.inherits(s,i),s.prototype.pack=function(t,e,n,i){this.emit("data",new r(o.PNG_SIGNATURE)),this.emit("data",this._packer.packIHDR(e,n)),i&&this.emit("data",this._packer.packGAMA(i));var a=this._packer.filterData(t,e,n);this._deflate.on("error",this.emit.bind(this,"error")),this._deflate.on("data",function(t){this.emit("data",this._packer.packIDAT(t))}.bind(this)),this._deflate.on("end",function(){this.emit("data",this._packer.packIEND()),this.emit("end")}.bind(this)),this._deflate.end(a)}}).call(this,t("buffer").Buffer)},{"./constants":99,"./packer":109,buffer:47,stream:139,util:150}],108:[function(t,e,r){(function(r){"use strict";var n=!0,i=t("zlib");i.deflateSync||(n=!1);var o=t("./constants"),a=t("./packer");e.exports=function(t,e){if(!n)throw new Error("To use the sync capability of this library in old node versions, please also add a dependency on node-zlb-backport");var s=new a(e||{}),l=[];l.push(new r(o.PNG_SIGNATURE)),l.push(s.packIHDR(t.width,t.height)),t.gamma&&l.push(s.packGAMA(t.gamma));var c=s.filterData(t.data,t.width,t.height),u=i.deflateSync(c,s.getDeflateOptions());if(c=null,!u||!u.length)throw new Error("bad png - invalid compressed data response");return l.push(s.packIDAT(u)),l.push(s.packIEND()),r.concat(l)}}).call(this,t("buffer").Buffer)},{"./constants":99,"./packer":109,buffer:47,zlib:45}],109:[function(t,e,r){(function(r){"use strict";var n=t("./constants"),i=t("./crc"),o=t("./bitpacker"),a=t("./filter-pack"),s=t("zlib"),l=e.exports=function(t){if(this._options=t,t.deflateChunkSize=t.deflateChunkSize||32768,t.deflateLevel=null!=t.deflateLevel?t.deflateLevel:9,t.deflateStrategy=null!=t.deflateStrategy?t.deflateStrategy:3,t.inputHasAlpha=null==t.inputHasAlpha||t.inputHasAlpha,t.deflateFactory=t.deflateFactory||s.createDeflate,t.bitDepth=t.bitDepth||8,t.colorType="number"==typeof t.colorType?t.colorType:n.COLORTYPE_COLOR_ALPHA,t.colorType!==n.COLORTYPE_COLOR&&t.colorType!==n.COLORTYPE_COLOR_ALPHA)throw new Error("option color type:"+t.colorType+" is not supported at present");if(8!==t.bitDepth)throw new Error("option bit depth:"+t.bitDepth+" is not supported at present")};l.prototype.getDeflateOptions=function(){return{chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy}},l.prototype.createDeflate=function(){return this._options.deflateFactory(this.getDeflateOptions())},l.prototype.filterData=function(t,e,r){var i=o(t,e,r,this._options),s=n.COLORTYPE_TO_BPP_MAP[this._options.colorType];return a(i,e,r,this._options,s)},l.prototype._packChunk=function(t,e){var n=e?e.length:0,o=new r(n+12);return o.writeUInt32BE(n,0),o.writeUInt32BE(t,4),e&&e.copy(o,8),o.writeInt32BE(i.crc32(o.slice(4,o.length-4)),o.length-4),o},l.prototype.packGAMA=function(t){var e=new r(4);return e.writeUInt32BE(Math.floor(t*n.GAMMA_DIVISION),0),this._packChunk(n.TYPE_gAMA,e)},l.prototype.packIHDR=function(t,e){var i=new r(13);return i.writeUInt32BE(t,0),i.writeUInt32BE(e,4),i[8]=this._options.bitDepth,i[9]=this._options.colorType,i[10]=0,i[11]=0,i[12]=0,this._packChunk(n.TYPE_IHDR,i)},l.prototype.packIDAT=function(t){return this._packChunk(n.TYPE_IDAT,t)},l.prototype.packIEND=function(){return this._packChunk(n.TYPE_IEND,null)}}).call(this,t("buffer").Buffer)},{"./bitpacker":97,"./constants":99,"./crc":100,"./filter-pack":101,buffer:47,zlib:45}],110:[function(t,e,r){"use strict";e.exports=function(t,e,r){var n=t+e-r,i=Math.abs(n-t),o=Math.abs(n-e),a=Math.abs(n-r);return i<=o&&i<=a?t:o<=a?e:r}},{}],111:[function(t,e,r){"use strict";var n=t("util"),i=t("zlib"),o=t("./chunkstream"),a=t("./filter-parse-async"),s=t("./parser"),l=t("./bitmapper"),c=t("./format-normaliser"),u=e.exports=function(t){o.call(this),this._parser=new s(t,{read:this.read.bind(this),error:this._handleError.bind(this),metadata:this._handleMetaData.bind(this),gamma:this.emit.bind(this,"gamma"),palette:this._handlePalette.bind(this),transColor:this._handleTransColor.bind(this),finished:this._finished.bind(this),inflateData:this._inflateData.bind(this)}),this._options=t,this.writable=!0,this._parser.start()};n.inherits(u,o),u.prototype._handleError=function(t){this.emit("error",t),this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy&&this._inflate.destroy(),this.errord=!0},u.prototype._inflateData=function(t){this._inflate||(this._inflate=i.createInflate(),this._inflate.on("error",this.emit.bind(this,"error")),this._filter.on("complete",this._complete.bind(this)),this._inflate.pipe(this._filter)),this._inflate.write(t)},u.prototype._handleMetaData=function(t){this.emit("metadata",t),this._bitmapInfo=Object.create(t),this._filter=new a(this._bitmapInfo)},u.prototype._handleTransColor=function(t){this._bitmapInfo.transColor=t},u.prototype._handlePalette=function(t){this._bitmapInfo.palette=t},u.prototype._finished=function(){this.errord||(this._inflate?this._inflate.end():this.emit("error","No Inflate block"),this.destroySoon())},u.prototype._complete=function(t){if(!this.errord){try{var e=l.dataToBitMap(t,this._bitmapInfo),r=c(e,this._bitmapInfo);e=null}catch(t){return void this._handleError(t)}this.emit("parsed",r)}}},{"./bitmapper":96,"./chunkstream":98,"./filter-parse-async":102,"./format-normaliser":105,"./parser":113,util:150,zlib:45}],112:[function(t,e,r){(function(r){"use strict";var n=!0,i=t("zlib");i.deflateSync||(n=!1);var o=t("./sync-reader"),a=t("./filter-parse-sync"),s=t("./parser"),l=t("./bitmapper"),c=t("./format-normaliser");e.exports=function(t,e){if(!n)throw new Error("To use the sync capability of this library in old node versions, please also add a dependency on node-zlb-backport");var u,f,h;var p=[];var d=new o(t);if(new s(e,{read:d.read.bind(d),error:function(t){u=t},metadata:function(t){f=t},gamma:function(t){h=t},palette:function(t){f.palette=t},transColor:function(t){f.transColor=t},inflateData:function(t){p.push(t)}}).start(),d.process(),u)throw u;var m=r.concat(p);p.length=0;var v=i.inflateSync(m);if(m=null,!v||!v.length)throw new Error("bad png - invalid inflate data response");var g=a.process(v,f);m=null;var _=l.dataToBitMap(g,f);g=null;var y=c(_,f);return f.data=y,f.gamma=h||0,f}}).call(this,t("buffer").Buffer)},{"./bitmapper":96,"./filter-parse-sync":103,"./format-normaliser":105,"./parser":113,"./sync-reader":116,buffer:47,zlib:45}],113:[function(t,e,r){(function(r){"use strict";var n=t("./constants"),i=t("./crc"),o=e.exports=function(t,e){this._options=t,t.checkCRC=!1!==t.checkCRC,this._hasIHDR=!1,this._hasIEND=!1,this._palette=[],this._colorType=0,this._chunks={},this._chunks[n.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[n.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[n.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[n.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[n.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[n.TYPE_gAMA]=this._handleGAMA.bind(this),this.read=e.read,this.error=e.error,this.metadata=e.metadata,this.gamma=e.gamma,this.transColor=e.transColor,this.palette=e.palette,this.parsed=e.parsed,this.inflateData=e.inflateData,this.inflateData=e.inflateData,this.finished=e.finished};o.prototype.start=function(){this.read(n.PNG_SIGNATURE.length,this._parseSignature.bind(this))},o.prototype._parseSignature=function(t){for(var e=n.PNG_SIGNATURE,r=0;rthis._palette.length)return void this.error(new Error("More transparent colors 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a(t),this._parser.on("error",this.emit.bind(this,"error")),this._parser.on("close",this._handleClose.bind(this)),this._parser.on("metadata",this._metadata.bind(this)),this._parser.on("gamma",this._gamma.bind(this)),this._parser.on("parsed",function(t){this.data=t,this.emit("parsed",t)}.bind(this)),this._packer=new s(t),this._packer.on("data",this.emit.bind(this,"data")),this._packer.on("end",this.emit.bind(this,"end")),this._parser.on("close",this._handleClose.bind(this)),this._packer.on("error",this.emit.bind(this,"error"))};i.inherits(c,o),c.sync=l,c.prototype.pack=function(){return this.data&&this.data.length?(e.nextTick(function(){this._packer.pack(this.data,this.width,this.height,this.gamma)}.bind(this)),this):(this.emit("error","No data provided"),this)},c.prototype.parse=function(t,e){var r,n;e&&(r=function(t){this.removeListener("error",n),this.data=t,e(null,this)}.bind(this),n=function(t){this.removeListener("parsed",r),e(t,null)}.bind(this),this.once("parsed",r),this.once("error",n));return this.end(t),this},c.prototype.write=function(t){return this._parser.write(t),!0},c.prototype.end=function(t){this._parser.end(t)},c.prototype._metadata=function(t){this.width=t.width,this.height=t.height,this.emit("metadata",t)},c.prototype._gamma=function(t){this.gamma=t},c.prototype._handleClose=function(){this._parser.writable||this._packer.readable||this.emit("close")},c.bitblt=function(t,e,r,n,i,o,a,s){if(r>t.width||n>t.height||r+i>t.width||n+o>t.height)throw new Error("bitblt reading outside image");if(a>e.width||s>e.height||a+i>e.width||s+o>e.height)throw new Error("bitblt writing outside image");for(var l=0;l0&&this._buffer.length;){var t=this._reads[0];if(!this._buffer.length||!(this._buffer.length>=t.length||t.allowLess))break;this._reads.shift();var e=this._buffer;this._buffer=e.slice(t.length),t.func.call(this,e.slice(0,t.length))}return this._reads.length>0?new Error("There are some read requests waitng on finished stream"):this._buffer.length>0?new Error("unrecognised content at end of stream"):void 0}},{}],117:[function(t,e,r){var n,i,o=e.exports={};function a(){throw new Error("setTimeout has not been defined")}function s(){throw new Error("clearTimeout has not been defined")}function l(t){if(n===setTimeout)return setTimeout(t,0);if((n===a||!n)&&setTimeout)return n=setTimeout,setTimeout(t,0);try{return n(t,0)}catch(e){try{return n.call(null,t,0)}catch(e){return n.call(this,t,0)}}}!function(){try{n="function"==typeof setTimeout?setTimeout:a}catch(t){n=a}try{i="function"==typeof clearTimeout?clearTimeout:s}catch(t){i=s}}();var c,u=[],f=!1,h=-1;function p(){f&&c&&(f=!1,c.length?u=c.concat(u):h=-1,u.length&&d())}function d(){if(!f){var t=l(p);f=!0;for(var e=u.length;e;){for(c=u,u=[];++h1)for(var r=1;r0?("string"==typeof 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Two steps back is -2, three steps back is -3 etc.",default:-2},blend:{type:"input",desc:"Function to use to blend the two images.",default:"function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],167:[function(t,e,r){e.exports=function(t,e){let r=[[2/159,4/159,5/159,4/159,2/159],[4/159,9/159,12/159,9/159,4/159],[5/159,12/159,15/159,12/159,5/159],[4/159,9/159,12/159,9/159,4/159],[2/159,4/159,5/159,4/159,2/159]],n=t;r=function(t){let e=[];for(let r=t.length-1;r>=0;r--){let n=[];for(let e=t[r].length-1;e>=0;e--)n.push(t[r][e]);e.push(n)}return e}(r);for(let e=0;em;r=0<=m?++u:--u)n[r]=(e-i)/(o-i)*(l[r]-s[r])+s[r];return n}}e.exports=function(t,e){return e.colormap=e.colormap||i.default,"object"==typeof e.colormap?colormapFunction=n(e.colormap):i.hasOwnProperty(e.colormap)?colormapFunction=i[e.colormap]:colormapFunction=i.default,colormapFunction(t/255)};var 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o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(r,n,i,o){var a=(r+n+i)/3,s=t("./Colormap")(a,e);return[s[0],s[1],s[2],255]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":253,"./Colormap":180}],182:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":181,"./info.json":183,dup:162}],183:[function(t,e,r){e.exports={name:"Colormap",description:"Maps brightness values (average of red, green & blue) to a given color lookup table, made up of a set of one more color gradients.\n\nFor example, 'cooler' colors like blue could represent low values, while 'hot' colors like red could represent high values.",inputs:{colormap:{type:"select",desc:"Name of the Colormap",default:"default",values:["default","greyscale","bluwhtgrngis","stretched","fastie","brntogrn","blutoredjet","colors16"]}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],184:[function(t,e,r){var n=t("lodash");e.exports=function(t,e){let r=n.cloneDeep(t);(e=Number(e))<-100&&(e=-100),e>100&&(e=100),e=(100+e)/100,e*=e;for(let n=0;n255&&(i=255);var o=r.get(n,s,1)/255;o-=.5,o*=e,o+=.5,(o*=255)<0&&(o=0),o>255&&(o=255);var a=r.get(n,s,2)/255;a-=.5,a*=e,a+=.5,(a*=255)<0&&(a=0),a>255&&(a=255),t.set(n,s,0,i),t.set(n,s,1,o),t.set(n,s,2,a)}return t}},{lodash:75}],185:[function(t,e,r){e.exports=function(e,r){return e.contrast=e.contrast||70,{options:e,draw:function(r,n,i){i.stop(!0),i.overrideFlag=!0;var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(t,e,r,n){return[t,e,r,n]},extraManipulation:function(r){return r=t("./Contrast")(r,e.contrast)},format:r.format,image:e.image,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":253,"./Contrast":184}],186:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":185,"./info.json":187,dup:162}],187:[function(t,e,r){e.exports={name:"Contrast",description:"Change the contrast of the image by given value",inputs:{contrast:{type:"range",desc:"contrast for the new image, typically -100 to 100",default:"70",min:"-100",max:"100",step:"1"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],188:[function(t,e,r){var n=t("lodash");e.exports=function(t,e,r){let o=function(t,e){for(e=e.split(" "),i=0;i<9;i++)e[i]=Number(e[i])*t;let r=0,n=[];for(i=0;i<3;i++){let t=[];for(j=0;j<3;j++)t.push(e[r]),r+=1;n.push(t)}return n}(e,r),a=n.cloneDeep(t);o=function(t){let e=[];for(let r=t.length-1;r>=0;r--){let n=[];for(let e=t[r].length-1;e>=0;e--)n.push(t[r][e]);e.push(n)}return e}(o);for(let e=0;eRead more",inputs:{constantFactor:{type:"Float",desc:"a constant factor, multiplies all the kernel values by that factor",default:.1111,placeholder:.1111},kernelValues:{type:"String",desc:"nine space separated numbers representing the kernel values in left to right and top to bottom format.",default:"1 1 1 1 1 1 1 1 1",placeholder:"1 1 1 1 1 1 1 1 1"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],192:[function(t,e,r){(function(r){e.exports=function(e,n,i){var o=t("get-pixels"),a=t("save-pixels");n.x=parseInt(n.x)||0,n.y=parseInt(n.y)||0,o(e.src,function(t,o){n.w=parseInt(n.w)||Math.floor(o.shape[0]),n.h=parseInt(n.h)||Math.floor(o.shape[1]),n.backgroundColor=n.backgroundColor||"255 255 255 255";var s=n.x,l=n.y,c=n.w,u=n.h,f=o.shape[0],h=o.shape[1],p=[];backgroundColor=n.backgroundColor.split(" ");for(var d=0;dRead more",inputs:{dither:{type:"select",desc:"Name of the Dithering Algorithm",default:"none",values:["none","floydsteinberg","bayer","Atkinson"]}}}},{}],204:[function(t,e,r){e.exports=function(t,e){e.startingX=e.startingX||0,e.startingY=e.startingY||0;var r=Number(e.startingX),n=Number(e.startingY),i=t.shape[0],o=t.shape[1],a=e.endX=Number(e.endX)||i-1,s=e.endY=Number(e.endY)||o-1,l=Number(e.thickness)||1,c=e.color||"0 0 0 255";c=c.split(" ");var u=function(e,r,n,o,a,s,u,f=1){for(var h=0;hInfragrammar.",inputs:{red:{type:"input",desc:"Expression to return for red channel with R, G, B, and A inputs",default:"r"},green:{type:"input",desc:"Expression to return for green channel with R, G, B, and A inputs",default:"g"},blue:{type:"input",desc:"Expression to return for blue channel with R, G, B, and A inputs",default:"b"},"monochrome (fallback)":{type:"input",desc:"Expression to return with R, G, B, and A inputs; fallback for other channels if none provided",default:"r + g + b"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],211:[function(t,e,r){t("lodash");const n=[[-1,0,1],[-2,0,2],[-1,0,1]],i=[[-1,-2,-1],[0,0,0],[1,2,1]];function o(t,e,r,o,a){let s=0;for(let e=0;e<3;e++)for(let r=0;r<3;r++){let i=o+e-1,l=a+r-1;s+=t.get(i,l,0)*n[e][r]}let l=0;for(let e=0;e<3;e++)for(let r=0;r<3;r++){let n=o+e-1,s=a+r-1;l+=t.get(n,s,0)*i[e][r]}return{pixel:[e,e,e,Math.sqrt(Math.pow(s,2)+Math.pow(l,2))],angle:Math.atan2(l,s)}}e.exports=function(t,e,r,n){let i=[],l=[];for(var c=0;ct.map(a));for(let 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Read more. ",inputs:{blur:{type:"range",desc:"Amount of gaussian blur(Less blur gives more detail, typically 0-5)",default:"2",min:"0",max:"5",step:"0.25"},highThresholdRatio:{type:"float",desc:"The high threshold ratio for the image",default:.2},lowThresholdRatio:{type:"float",desc:"The low threshold value for the image",default:.15}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],215:[function(t,e,r){e.exports=function(e,r){return t("fisheyegl"),{options:e,draw:function(t,r){var n=this;if(e.inBrowser){if(document.querySelector("#image-sequencer-canvas"))var i=document.querySelector("#image-sequencer-canvas");else(i=document.createElement("canvas")).style.display="none",i.setAttribute("id","image-sequencer-canvas"),document.body.append(i);distorter=FisheyeGl({selector:"#image-sequencer-canvas"}),e.a=parseFloat(e.a)||distorter.lens.a,e.b=parseFloat(e.b)||distorter.lens.b,e.Fx=parseFloat(e.Fx)||distorter.lens.Fx,e.Fy=parseFloat(e.Fy)||distorter.lens.Fy,e.scale=parseFloat(e.scale)||distorter.lens.scale,e.x=parseFloat(e.x)||distorter.fov.x,e.y=parseFloat(e.y)||distorter.fov.y,distorter.lens.a=e.a,distorter.lens.b=e.b,distorter.lens.Fx=e.Fx,distorter.lens.Fy=e.Fy,distorter.lens.scale=e.scale,distorter.fov.x=e.x,distorter.fov.y=e.y,distorter.setImage(t.src,function(){n.output={src:i.toDataURL(),format:t.format},r()})}else this.output=t,r()},output:void 0,UI:r}}},{fisheyegl:21}],216:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":215,"./info.json":217,dup:162}],217:[function(t,e,r){e.exports={name:"Fisheye GL",description:"Correct fisheye, or barrel distortion, in images (with WebGL -- adapted from fisheye-correction-webgl by @bluemir).",requires:["webgl"],inputs:{a:{type:"float",desc:"a parameter",default:1,min:1,max:4},b:{type:"float",desc:"b parameter",default:1,min:1,max:4},Fx:{type:"float",desc:"Fx parameter",default:0,min:0,max:4},Fy:{type:"float",desc:"Fy parameter",default:0,min:0,max:4},scale:{type:"float",desc:"Image Scaling",default:1.5,min:0,max:20},x:{type:"float",desc:"FOV x parameter",default:1.5,min:0,max:20},y:{type:"float",desc:"FOV y parameter",default:1.5,min:0,max:20},fragmentSrc:{type:"PATH",desc:"Path to a WebGL fragment shader file",default:"(inbuilt)"},vertexSrc:{type:"PATH",desc:"Path to a WebGL vertex shader file",default:"(inbuilt)"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],218:[function(t,e,r){e.exports=function(e,r){return{options:e,draw:function(r,n,i){i.stop(!0),i.overrideFlag=!0;var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(t,r,n,i){var o=e.adjustment||.2;return[t=255*Math.pow(t/255,o),r=255*Math.pow(r/255,o),n=255*Math.pow(n/255,o),i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:n})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":253}],219:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":218,"./info.json":220,dup:162}],220:[function(t,e,r){e.exports={name:"Gamma Correction",description:"Apply gamma correction on the image Read more",inputs:{adjustment:{type:"float",desc:"gamma correction (inverse of actual gamma factor) for the new image",default:.2}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],221:[function(t,e,r){(function(r){e.exports=function(e,n){return{options:e,draw:function(e,n,i){var o=t("get-pixels"),a=t("save-pixels"),s=this;o(e.src,function(t,i){if(t)console.log("Bad Image path");else{for(var o=0,l=0;l

Select or drag in an image to overlay.

';$(t.ui).find(".details").prepend(i),sequencer.setInputStep({dropZoneSelector:"#"+n,fileInputSelector:"#"+n+" .file-input",onLoad:function(e){var r=e.target;t.options.imageUrl=r.result,t.options.url=r.result,sequencer.run(),setUrlHashParameter("steps",sequencer.toString())}}),$(t.ui).find(".btn-save").on("click",function(){var e=$(t.ui).find(".det input").val();t.options.imageUrl=e,sequencer.run()})}}}},{}],229:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":227,"./info.json":230,dup:162}],230:[function(t,e,r){e.exports={name:"Import Image",description:"Import a new image and replace the original with it. Future versions may enable a blend mode. Specify an image by URL or by file selector.",url:"https://github.com/publiclab/image-sequencer/tree/master/MODULES.md",inputs:{url:{type:"string",desc:"URL of image to import",default:"./images/monarch.png"}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],231:[function(t,e,r){e.exports=function(){return this.expandSteps([{name:"ndvi",options:{}},{name:"colormap",options:{}}]),{isMeta:!0}}},{}],232:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":231,"./info.json":233,dup:162}],233:[function(t,e,r){e.exports={name:"NDVI-Colormap",description:"Sequentially Applies NDVI and Colormap steps",inputs:{},length:2,"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],234:[function(t,e,r){e.exports=function(e,r){if(e.step.inBrowser)var n=t("./Ui.js")(e.step,r);return e.filter=e.filter||"red",{options:e,draw:function(r,i,o){o.stop(!0),o.overrideFlag=!0;var a=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){a.output={src:e,format:r}},changePixel:function(t,r,n,i){if("red"==e.filter)var o=(n-t)/(1*n+t);"blue"==e.filter&&(o=(t-n)/(1*n+t));var a=255*(o+1)/2;return[a,a,a,i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:function(){e.step.inBrowser&&n.setup(),i()}})},output:void 0,UI:r}}},{"../_nomodule/PixelManipulation.js":253,"./Ui.js":235}],235:[function(t,e,r){e.exports=function(t,e){return{setup:function(){var e=$(t.imgElement);e.mousemove(function(t){var r=document.createElement("canvas");r.width=e.width(),r.height=e.height(),r.getContext("2d").drawImage(this,0,0);var n=$(this).offset(),i=t.pageX-n.left,o=t.pageY-n.top,a=r.getContext("2d").getImageData(i,o,1,1).data[0];a=(a=a/127.5-1).toFixed(2),e[0].title="NDVI: "+a})}}}},{}],236:[function(t,e,r){arguments[4][162][0].apply(r,arguments)},{"./Module":234,"./info.json":237,dup:162}],237:[function(t,e,r){e.exports={name:"NDVI",description:"Normalized Difference Vegetation Index, or NDVI, is an image analysis technique used with aerial photography. It's a way to visualize the amounts of infrared and other wavelengths of light reflected from vegetation by comparing ratios of blue and red light absorbed versus green and IR light reflected. NDVI is used to evaluate the health of vegetation in satellite imagery, where it correlates with how much photosynthesis is happening. This is helpful in assessing vegetative health or stress. Read more.

This is designed for use with red-filtered single camera DIY Infragram cameras; change to 'blue' for blue filters",inputs:{filter:{type:"select",desc:"Filter color",default:"red",values:["red","blue"]}},"docs-link":"https://github.com/publiclab/image-sequencer/blob/main/docs/MODULES.md"}},{}],238:[function(t,e,r){e.exports=function(e,r,n){return e.x=e.x||0,e.y=e.y||0,{options:e,draw:function(r,n,i){e.offset=e.offset||-2,i.stop(!0),i.overrideFlag=!0;var o=this;t("../../util/ParseInputCoordinates")(e,{src:r.src,x:{valInp:e.x,type:"horizontal"},y:{valInp:e.y,type:"vertical"}},function(t,e){t.x=parseInt(e.x.valInp),t.y=parseInt(e.y.valInp)});var a=this.getStep(e.offset).image,s=this.getOutput(e.offset);t("get-pixels")(r.src,function(r,i){return e.secondImagePixels=i,t("../_nomodule/PixelManipulation.js")(s,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(t,r,n,i,o,a){var s=e.secondImagePixels;return o>=e.x&&o=e.y&&a"40000"?"40000":e.temperature,i.stop(!0),i.overrideFlag=!0;var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,e,r){o.output={src:e,format:r}},changePixel:function(t,e,r,n){return[t,e,r,n]},extraManipulation:function(t){let r,n,i,o=parseInt(e.temperature);(o/=100)<=66?(r=255,n=Math.min(Math.max(99.4708025861*Math.log(o)-161.1195681661,0),255)):(r=Math.min(Math.max(329.698727446*Math.pow(o-60,-.1332047592),0),255),n=Math.min(Math.max(288.1221695283*Math.pow(o-60,-.0755148492),0),255)),o>=66?i=255:o<=19?i=0:(i=o-10,i=Math.min(Math.max(138.5177312231*Math.log(i)-305.0447927307,0),255));for(let e=0;e
To work with a new or different image, drag one into the drop zone.",ID:e.options.sequencerCounter++,imageName:t,inBrowser:e.options.inBrowser,ui:e.options.ui},a={src:r,steps:[{options:{id:n.ID,name:"load-image",description:"This initial step loads and displays the original image without any modifications.",title:"Load Image",step:n},UI:e.events,draw:function(){return UI.onDraw(options.step),1==arguments.length?(this.output=o(arguments[0]),options.step.output=this.output,UI.onComplete(options.step),!0):2==arguments.length&&(this.output=o(arguments[0]),options.step.output=this.output,arguments[1](),UI.onComplete(options.step),!0)}}]};o(r,function(r){var n=function(t){return{src:t,format:t.split(":")[1].split(";")[0].split("/")[1]}}(r);e.images[t]=a;var o=e.images[t].steps[0];return o.output=n,o.options.step.output=o.output.src,o.UI.onSetup(o.options.step),o.UI.onDraw(o.options.step),o.UI.onComplete(o.options.step),i(),!0})}(r,n)}},{urify:147}],255:[function(t,e,r){e.exports=function(){return function(t){var e=$(t.dropZoneSelector),r=$(t.fileInputSelector),n=$(t.takePhotoSelector),i=t.onLoad;function o(t){if(t.preventDefault(),t.stopPropagation(),t.target&&t.target.files)var e=t.target.files[0];else e=t.dataTransfer.files[0];if(e){var r=new FileReader;r.onload=i,r.readAsDataURL(e)}}t.onTakePhoto,new FileReader,r.on("change",o),n.on("click",function(){document.getElementById("video").style.display="inline",document.getElementById("capture").style.display="inline",document.getElementById("close").style.display="inline";var e=document.getElementById("video");canvas=document.getElementById("canvas"),context=canvas.getContext("2d"),vendorUrl=window.URL||window.webkitURL,navigator.mediaDevices.getUserMedia({audio:!1,video:!0}).then(function(t){window.stream=t,e.srcObject=t,e.onloadedmetadata=function(t){e.play()},document.getElementById("close").addEventListener("click",function(){!function(t){t.getVideoTracks().forEach(function(t){t.stop()}),document.getElementById("video").style.display="none",document.getElementById("capture").style.display="none",document.getElementById("close").style.display="none"}(t)})}).catch(function(t){console.log("navigator.getUserMedia error: ",t)}),document.getElementById("capture").addEventListener("click",function(r){context.drawImage(e,0,0,400,300),t.onTakePhoto(canvas.toDataURL())})}),e[0].addEventListener("drop",o,!1),e.on("dragover",function(t){t.stopPropagation(),t.preventDefault(),t.dataTransfer.dropEffect="copy"},!1),e.on("dragenter",function(t){e.addClass("hover")}),e.on("dragleave",function(t){e.removeClass("hover")})}}},{}],256:[function(t,e,r){e.exports=function(t={}){return t.onSetup=t.onSetup||function(t){0==t.ui||(t.inBrowser?console.log('Added Step "'+t.name+'" to "'+t.imageName+'".'):console.log("%s",'Added Step "'+t.name+'" to "'+t.imageName+'".'))},t.onDraw=t.onDraw||function(t){0==t.ui||(t.inBrowser?console.log('Drawing Step "'+t.name+'" on "'+t.imageName+'".'):console.log("%s",'Drawing Step "'+t.name+'" on "'+t.imageName+'".'))},t.onComplete=t.onComplete||function(t){0==t.ui||(t.inBrowser?console.log('Drawn Step "'+t.name+'" on "'+t.imageName+'".'):console.log("%s",'Drawn Step "'+t.name+'" on "'+t.imageName+'".'))},t.onRemove=t.onRemove||function(t){0==t.ui||(t.inBrowser?console.log('Removing Step "'+t.name+'" of "'+t.imageName+'".'):console.log("%s",'Removing Step "'+t.name+'" of "'+t.imageName+'".'))},t.notify=t.notify||function(t){console.log(t)},t}},{}],257:[function(t,e,r){e.exports=function(t){var e=void 0;return"jpeg"===(e=(e=function(t){return"data:image"===t.substr(0,10)}(t)?t.split(";")[0].split("/").pop():t.split(".").pop()).toLowerCase())&&(e="jpg"),["jpg","jpeg","png","gif","canvas"].includes(e)?e:"jpg"}},{}],258:[function(t,e,r){e.exports=function(e,r,n){t("get-pixels")(r.src,function(t,i){var o=i.shape[0],a=i.shape[1];if(r.x.valInp){Object.keys(r).forEach(function(t){var e=r[t];e.valInp&&"%"===e.valInp.slice(-1)&&(e.valInp=parseInt(e.valInp,10),"horizontal"===e.type?e.valInp=e.valInp*o/100:e.valInp=e.valInp*a/100)});n(e,r)}})}},{"get-pixels":29}],259:[function(t,e,r){e.exports={getPreviousStep:function(){return this.getStep(-1)},getNextStep:function(){return this.getStep(1)},getInput:function(t){return t+this.getIndex()===0&&t++,this.getStep(t-1).output},getOutput:function(t){return this.getStep(t).output},getOptions:function(){return this.getStep(0).options},setOptions:function(t){let e=this.getStep(0).options;for(let r in t)e[r]&&(e[r]=t[r])},getFormat:function(){return this.getStep(-1).output.format},getHeight:function(t){let e=new Image;e.onload=function(){t(e.height)},e.src=this.getInput(0).src},getWidth:function(t){let e=new Image;e.onload=function(){t(e.width)},e.src=this.getInput(0).src}}},{}]},{},[154]); \ No newline at end of file diff --git a/examples/demo.css b/examples/demo.css index a52c3e2f..0585a846 100644 --- a/examples/demo.css +++ b/examples/demo.css @@ -100,6 +100,11 @@ h1 { color: #444; } +.load-spin{ + position: absolute; + right: 0px; +} + #addStep { max-width: 500px; margin: 20px auto; diff --git a/examples/lib/defaultHtmlStepUi.js b/examples/lib/defaultHtmlStepUi.js index 930dac38..f652fb88 100644 --- a/examples/lib/defaultHtmlStepUi.js +++ b/examples/lib/defaultHtmlStepUi.js @@ -29,7 +29,8 @@ function DefaultHtmlStepUi(_sequencer, options) {
\

\ ' +step.name + ' ' + - '

"'+ + '' + + '

"'+ (step.description || "") + '

\
\ @@ -220,11 +221,16 @@ function DefaultHtmlStepUi(_sequencer, options) { function onDraw(step) { $(step.ui.querySelector(".load")).show(); $(step.ui.querySelector("img")).hide(); + if( $(step.ui.querySelector(".toggleIcon")).hasClass("fa-caret-down") ) + { + $(step.ui.querySelector(".load-spin")).show(); + } } function onComplete(step) { $(step.ui.querySelector(".load")).hide(); $(step.ui.querySelector("img")).show(); + $(step.ui.querySelector(".load-spin")).hide(); step.imgElement.src = step.output; var imgthumbnail = step.ui.querySelector(".img-thumbnail");