diff --git a/dist/image-sequencer.js b/dist/image-sequencer.js
index ccde0f49..8ea1ac5d 100755
--- a/dist/image-sequencer.js
+++ b/dist/image-sequencer.js
@@ -47166,10 +47166,12 @@ function hasOwnProperty(obj, prop) {
 }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
 },{"./support/isBuffer":130,"_process":94,"inherits":129}],132:[function(require,module,exports){
 // add steps to the sequencer 
+// TODO: reduce redundancy with InsertStep; this should be a specific usage of InsertStep at the final position
 function AddStep(_sequencer, image, name, o) {
 
   function addStep(image, name, o_) {
-    var moduleInfo = _sequencer.modules[name][1];
+    if (_sequencer.modules[name]) var moduleInfo = _sequencer.modules[name][1];
+    else console.log('Module ' + name + ' not found.');
 
     var o = _sequencer.copy(o_);
     o.number = _sequencer.options.sequencerCounter++; // gives a unique ID to each step
@@ -47190,7 +47192,10 @@ function AddStep(_sequencer, image, name, o) {
       options: o
     };
     var UI = _sequencer.events;
-    var module = _sequencer.modules[name][0](o,UI);
+    this.getStep = function getStep(offset) {
+      return _sequencer.images[image].steps.slice(offset - 1)[0];
+    }
+    var module = _sequencer.modules[name][0].bind(this)(o, UI);
     _sequencer.images[image].steps.push(module);
 
     return true;
@@ -47660,7 +47665,7 @@ ImageSequencer = function ImageSequencer(options) {
 }
 module.exports = ImageSequencer;
 
-},{"./AddStep":132,"./ExportBin":133,"./FormatInput":134,"./InsertStep":136,"./Modules":137,"./ReplaceImage":138,"./Run":139,"./ui/LoadImage":172,"./ui/SetInputStep":173,"./ui/UserInterface":174,"fs":39}],136:[function(require,module,exports){
+},{"./AddStep":132,"./ExportBin":133,"./FormatInput":134,"./InsertStep":136,"./Modules":137,"./ReplaceImage":138,"./Run":139,"./ui/LoadImage":174,"./ui/SetInputStep":175,"./ui/UserInterface":176,"fs":39}],136:[function(require,module,exports){
 // insert one or more steps at a given index in the sequencer
 function InsertStep(ref, image, index, name, o) {
 
@@ -47672,7 +47677,7 @@ function InsertStep(ref, image, index, name, o) {
     o.container = o_.container || ref.options.selector;
     o.image = image;
 
-    if(index==-1) index = ref.images[image].steps.length;
+    if (index == -1) index = ref.images[image].steps.length;
 
     o.step = {
       name: o.name,
@@ -47685,8 +47690,11 @@ function InsertStep(ref, image, index, name, o) {
       options: o
     };
     var UI = ref.events;
-    var module = ref.modules[name][0](o,UI);
-    ref.images[image].steps.splice(index,0,module);
+    this.getStep = function getStep(offset) {
+      return ref.images[image].steps.slice(offset)[0];
+    }
+    var module = ref.modules[name][0].bind(this)(o, UI);
+    ref.images[image].steps.splice(index, 0, module);
 
     return true;
   }
@@ -47738,10 +47746,13 @@ module.exports = {
   ],
   'average': [
     require('./modules/Average/Module'),require('./modules/Average/info')
+  ],
+  'blend': [
+    require('./modules/Blend/Module'),require('./modules/Blend/info')
   ]
 }
 
-},{"./modules/Average/Module":140,"./modules/Average/info":141,"./modules/Blur/Module":143,"./modules/Blur/info":144,"./modules/Brightness/Module":145,"./modules/Brightness/info":146,"./modules/Channel/Module":147,"./modules/Channel/info":148,"./modules/Colormap/Module":150,"./modules/Colormap/info":151,"./modules/Crop/Module":153,"./modules/Crop/info":155,"./modules/DecodeQr/Module":156,"./modules/DecodeQr/info":157,"./modules/Dynamic/Module":158,"./modules/Dynamic/info":159,"./modules/EdgeDetect/Module":161,"./modules/EdgeDetect/info":162,"./modules/FisheyeGl/Module":163,"./modules/FisheyeGl/info":164,"./modules/Invert/Module":165,"./modules/Invert/info":166,"./modules/Ndvi/Module":167,"./modules/Ndvi/info":168,"./modules/Saturation/Module":169,"./modules/Saturation/info":170}],138:[function(require,module,exports){
+},{"./modules/Average/Module":140,"./modules/Average/info":141,"./modules/Blend/Module":142,"./modules/Blend/info":143,"./modules/Blur/Module":145,"./modules/Blur/info":146,"./modules/Brightness/Module":147,"./modules/Brightness/info":148,"./modules/Channel/Module":149,"./modules/Channel/info":150,"./modules/Colormap/Module":152,"./modules/Colormap/info":153,"./modules/Crop/Module":155,"./modules/Crop/info":157,"./modules/DecodeQr/Module":158,"./modules/DecodeQr/info":159,"./modules/Dynamic/Module":160,"./modules/Dynamic/info":161,"./modules/EdgeDetect/Module":163,"./modules/EdgeDetect/info":164,"./modules/FisheyeGl/Module":165,"./modules/FisheyeGl/info":166,"./modules/Invert/Module":167,"./modules/Invert/info":168,"./modules/Ndvi/Module":169,"./modules/Ndvi/info":170,"./modules/Saturation/Module":171,"./modules/Saturation/info":172}],138:[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) {
@@ -47816,14 +47827,12 @@ function Run(ref, json_q, callback, progressObj) {
         return true;
       }
     }
+
     // so we don't run on the loadImage module:
     if (drawarray[pos] !== undefined) {
       var image = drawarray[pos].image;
       var i = drawarray[pos].i;
       var input = ref.images[image].steps[i - 1].output;
-
-      generateOutputsArray(input, i, image);
-
       ref.images[image].steps[i].draw(
         ref.copy(input),
         function onEachStep() {
@@ -47863,20 +47872,6 @@ function Run(ref, json_q, callback, progressObj) {
     }
     return json_q;
   }
-  function generateOutputsArray(input, i, image) {
-    var outputs_arr = [];
-    for (let opt in ref.images[image].steps) {
-      if (opt >= i) break;
-      outputs_arr.push(ref.images[image].steps[opt]);
-    }
-    input.history = ref.copy(outputs_arr);
-    input.getStep = function getStep(offset) {
-      return this.history.slice(offset)[0];
-    };
-    input.getStepOutput = function getStepOutput(offset) {
-      return this.getStep(offset).output;
-    };
-  }
 
   var json_q = filter(json_q);
   return drawSteps(json_q);
@@ -47973,7 +47968,7 @@ module.exports = function Average(options, UI){
     }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],141:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],141:[function(require,module,exports){
 module.exports={
     "name": "Average",
     "description": "Average all pixel color",
@@ -47982,6 +47977,95 @@ module.exports={
 }
 
 },{}],142:[function(require,module,exports){
+module.exports = function Dynamic(options, UI, util) {
+
+  options = options || {};
+  options.func = options.func || "function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }";
+
+  // Tell the UI that a step has been set up.
+  UI.onSetup(options.step);
+  var output;
+
+  // This function is called on every draw.
+  function draw(input, callback, progressObj) {
+
+    progressObj.stop(true);
+    progressObj.overrideFlag = true;
+
+    // Tell the UI that the step is being drawn
+    UI.onDraw(options.step);
+    var step = this;
+
+    // convert to runnable code:
+    if (typeof options.func === "string") eval('options.func = ' + options.func);
+
+    var getPixels = require('get-pixels');
+
+    // save first image's pixels
+    var priorStep = getStep(-2);
+
+    getPixels(priorStep.output.src, function (err, pixels) {
+      options.firstImagePixels = pixels;
+
+      function changePixel(r2, g2, b2, a2, x, y) {
+        // blend!
+        var p = options.firstImagePixels;
+        return options.func(
+          r2, g2, b2, a2,
+          p.get(x, y, 0),
+          p.get(x, y, 1),
+          p.get(x, y, 2),
+          p.get(x, y, 3)
+        )
+      }
+
+      function output(image, datauri, mimetype) {
+
+        // This output is accessible by Image Sequencer
+        step.output = { src: datauri, format: mimetype };
+
+        // This output is accessible by the UI
+        options.step.output = datauri;
+
+        // Tell the UI that the draw is complete
+        UI.onComplete(options.step);
+
+      }
+
+      // run PixelManipulatin on second image's pixels 
+      return require('../_nomodule/PixelManipulation.js')(input, {
+        output: output,
+        changePixel: changePixel,
+        format: input.format,
+        image: options.image,
+        inBrowser: options.inBrowser,
+        callback: callback
+      });
+    });
+  }
+
+  return {
+    options: options,
+    draw: draw,
+    output: output,
+    UI: UI
+  }
+}
+
+},{"../_nomodule/PixelManipulation.js":173,"get-pixels":23}],143:[function(require,module,exports){
+module.exports={
+  "name": "Blend",
+  "description": "Blend the past two 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": {
+    "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 ] }"
+    }
+  }
+}
+
+},{}],144:[function(require,module,exports){
 module.exports = exports = function(pixels,blur){
     let kernel = kernelGenerator(blur,1)
     kernel = flipKernel(kernel)
@@ -48067,7 +48151,7 @@ function flipKernel(kernel){
     return result
 }
 }
-},{}],143:[function(require,module,exports){
+},{}],145:[function(require,module,exports){
 /*
 * Blur an Image
 */
@@ -48128,7 +48212,7 @@ module.exports = function Blur(options,UI){
     }
 }
 
-},{"../_nomodule/PixelManipulation.js":171,"./Blur":142}],144:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173,"./Blur":144}],146:[function(require,module,exports){
 module.exports={
     "name": "Blur",
     "description": "Gaussian blur an image by a given value, typically 0-5",
@@ -48141,7 +48225,7 @@ module.exports={
     }
 }
 
-},{}],145:[function(require,module,exports){
+},{}],147:[function(require,module,exports){
 /* 
 * Changes the Image Brightness
 */
@@ -48208,7 +48292,7 @@ module.exports = function Brightness(options,UI){
     }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],146:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],148:[function(require,module,exports){
 module.exports={
     "name": "Brightness",
     "description": "Change the brightness of the image by given percent value",
@@ -48221,7 +48305,7 @@ module.exports={
     } 
 }
 
-},{}],147:[function(require,module,exports){
+},{}],149:[function(require,module,exports){
 /*
  * Display only one color channel
  */
@@ -48281,7 +48365,7 @@ module.exports = function Channel(options,UI) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],148:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],150:[function(require,module,exports){
 module.exports={
   "name": "Channel",
   "description": "Displays only one color channel of an image -- default is green",
@@ -48295,7 +48379,7 @@ module.exports={
   }
 }
 
-},{}],149:[function(require,module,exports){
+},{}],151:[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] 
@@ -48384,7 +48468,7 @@ var colormaps = {
              ])
 }
 
-},{}],150:[function(require,module,exports){
+},{}],152:[function(require,module,exports){
 module.exports = function Colormap(options,UI) {
 
   options = options || {};
@@ -48440,7 +48524,7 @@ module.exports = function Colormap(options,UI) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171,"./Colormap":149}],151:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173,"./Colormap":151}],153:[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.",
@@ -48454,7 +48538,7 @@ module.exports={
   }
 }
 
-},{}],152:[function(require,module,exports){
+},{}],154:[function(require,module,exports){
 (function (Buffer){
 module.exports = function Crop(input,options,callback) {
 
@@ -48500,7 +48584,7 @@ module.exports = function Crop(input,options,callback) {
 };
 
 }).call(this,require("buffer").Buffer)
-},{"buffer":4,"get-pixels":23,"save-pixels":107}],153:[function(require,module,exports){
+},{"buffer":4,"get-pixels":23,"save-pixels":107}],155:[function(require,module,exports){
 /*
  * Image Cropping module
  * Usage:
@@ -48579,7 +48663,7 @@ module.exports = function CropModule(options, UI) {
   }
 }
 
-},{"./Crop":152,"./Ui.js":154}],154:[function(require,module,exports){
+},{"./Crop":154,"./Ui.js":156}],156:[function(require,module,exports){
 // hide on save
 module.exports = function CropModuleUi(step, ui) {
 
@@ -48678,7 +48762,7 @@ module.exports = function CropModuleUi(step, ui) {
   }
 }
 
-},{}],155:[function(require,module,exports){
+},{}],157:[function(require,module,exports){
 module.exports={
   "name": "Crop",
   "description": "Crop image to given x, y, w, h in pixels, measured from top left",
@@ -48707,7 +48791,7 @@ module.exports={
   }
 }
 
-},{}],156:[function(require,module,exports){
+},{}],158:[function(require,module,exports){
 /*
  * Decodes QR from a given image.
  */
@@ -48762,7 +48846,7 @@ module.exports = function DoNothing(options,UI) {
   }
 }
 
-},{"get-pixels":23,"jsqr":57}],157:[function(require,module,exports){
+},{"get-pixels":23,"jsqr":57}],159:[function(require,module,exports){
 module.exports={
   "name": "Decode QR",
   "description": "Search for and decode a QR code in the image",
@@ -48775,7 +48859,7 @@ module.exports={
   }
 }
 
-},{}],158:[function(require,module,exports){
+},{}],160:[function(require,module,exports){
 module.exports = function Dynamic(options,UI) {
   
   options = options || {};
@@ -48872,7 +48956,7 @@ module.exports = function Dynamic(options,UI) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],159:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],161:[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 <a href='https://publiclab.org/wiki/infragram-sandbox'>Infragrammar</a>.",
@@ -48900,7 +48984,7 @@ module.exports={
   }
 }
 
-},{}],160:[function(require,module,exports){
+},{}],162:[function(require,module,exports){
 const _ = require('lodash')
 
 //define kernels for the sobel filter
@@ -49081,7 +49165,7 @@ function hysteresis(pixels){
 
 
 
-},{"lodash":58}],161:[function(require,module,exports){
+},{"lodash":58}],163:[function(require,module,exports){
 /*
  * Detect Edges in an Image
  */
@@ -49150,7 +49234,7 @@ module.exports = function edgeDetect(options,UI) {
     }
   }
 
-},{"../_nomodule/PixelManipulation.js":171,"./EdgeUtils":160,"ndarray-gaussian-filter":63}],162:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173,"./EdgeUtils":162,"ndarray-gaussian-filter":63}],164:[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 at: https://en.wikipedia.org/wiki/Canny_edge_detector",
@@ -49173,7 +49257,7 @@ module.exports={
     }
 }
 
-},{}],163:[function(require,module,exports){
+},{}],165:[function(require,module,exports){
 /*
  * Resolves Fisheye Effect
  */
@@ -49255,7 +49339,7 @@ module.exports = function DoNothing(options,UI) {
   }
 }
 
-},{"fisheyegl":15}],164:[function(require,module,exports){
+},{"fisheyegl":15}],166:[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).",
@@ -49323,11 +49407,11 @@ module.exports={
   }
 }
 
-},{}],165:[function(require,module,exports){
+},{}],167:[function(require,module,exports){
 /*
  * Invert the image
  */
-module.exports = function Invert(options,UI) {
+module.exports = function Invert(options, UI) {
 
   options = options || {};
 
@@ -49336,8 +49420,11 @@ module.exports = function Invert(options,UI) {
   var output;
 
   // The function which is called on every draw.
-  function draw(input,callback,progressObj) {
+  function draw(input, callback, progressObj) {
 
+    console.log(getStep(-2).options.name);
+    console.log(getStep(-1).options.name);
+    console.log(getStep(0).options.name);
     progressObj.stop(true);
     progressObj.overrideFlag = true;
     // Tell UI that a step is being drawn.
@@ -49346,13 +49433,13 @@ module.exports = function Invert(options,UI) {
     var step = this;
 
     function changePixel(r, g, b, a) {
-      return [255-r, 255-g, 255-b, a];
+      return [255 - r, 255 - g, 255 - b, a];
     }
 
-    function output(image,datauri,mimetype){
+    function output(image, datauri, mimetype) {
 
       // This output is accessible by Image Sequencer
-      step.output = {src:datauri,format:mimetype};
+      step.output = { src: datauri, format: mimetype };
 
       // This output is accessible by UI
       options.step.output = datauri;
@@ -49374,13 +49461,13 @@ module.exports = function Invert(options,UI) {
 
   return {
     options: options,
-    draw:  draw,
+    draw: draw,
     output: output,
     UI: UI
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],166:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],168:[function(require,module,exports){
 module.exports={
   "name": "Invert",
   "description": "Inverts the image.",
@@ -49388,7 +49475,7 @@ module.exports={
   }
 }
 
-},{}],167:[function(require,module,exports){
+},{}],169:[function(require,module,exports){
 /*
  * NDVI with red filter (blue channel is infrared)
  */
@@ -49449,7 +49536,7 @@ module.exports = function Ndvi(options,UI) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],168:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],170:[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. <a href='https://publiclab.org/ndvi'>Read more</a>.<br /><br/>This is designed for use with red-filtered single camera <a href='http://publiclab.org/infragram'>DIY Infragram cameras</a>; change to 'blue' for blue filters",
@@ -49463,7 +49550,7 @@ module.exports={
   }
 }
 
-},{}],169:[function(require,module,exports){
+},{}],171:[function(require,module,exports){
 /*
  * Saturate an image with a value from 0 to 1
  */
@@ -49532,7 +49619,7 @@ module.exports = function Saturation(options,UI) {
   }
 }
 
-},{"../_nomodule/PixelManipulation.js":171}],170:[function(require,module,exports){
+},{"../_nomodule/PixelManipulation.js":173}],172:[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.",
@@ -49545,7 +49632,7 @@ module.exports={
     }
 }
 
-},{}],171:[function(require,module,exports){
+},{}],173:[function(require,module,exports){
 (function (process,Buffer){
 /*
 * General purpose per-pixel manipulation
@@ -49569,7 +49656,7 @@ module.exports = function PixelManipulation(image, options) {
   var getPixels = require("get-pixels"),
     savePixels = require("save-pixels");
 
-  getPixels(image.src, function(err, pixels) {
+  getPixels(image.src, function (err, pixels) {
     if (err) {
       console.log("Bad image path", image);
       return;
@@ -49599,7 +49686,9 @@ module.exports = function PixelManipulation(image, options) {
           pixels.get(x, y, 0),
           pixels.get(x, y, 1),
           pixels.get(x, y, 2),
-          pixels.get(x, y, 3)
+          pixels.get(x, y, 3),
+          x,
+          y
         );
 
         pixels.set(x, y, 0, pixel[0]);
@@ -49620,12 +49709,12 @@ module.exports = function PixelManipulation(image, options) {
     var totalLength = 0;
     var r = savePixels(pixels, options.format, { quality: 100 });
 
-    r.on("data", function(chunk) {
+    r.on("data", function (chunk) {
       totalLength += chunk.length;
       chunks.push(chunk);
     });
 
-    r.on("end", function() {
+    r.on("end", function () {
       var data = Buffer.concat(chunks, totalLength).toString("base64");
       var datauri = "data:image/" + options.format + ";base64," + data;
       if (options.output)
@@ -49636,7 +49725,7 @@ module.exports = function PixelManipulation(image, options) {
 };
 
 }).call(this,require('_process'),require("buffer").Buffer)
-},{"_process":94,"buffer":4,"get-pixels":23,"pace":70,"save-pixels":107}],172:[function(require,module,exports){
+},{"_process":94,"buffer":4,"get-pixels":23,"pace":70,"save-pixels":107}],174:[function(require,module,exports){
 // special module to load an image into the start of the sequence; used in the HTML UI
 function LoadImage(ref, name, src, main_callback) {
   function makeImage(datauri) {
@@ -49743,7 +49832,7 @@ function LoadImage(ref, name, src, main_callback) {
 
 module.exports = LoadImage;
 
-},{"urify":127}],173:[function(require,module,exports){
+},{"urify":127}],175:[function(require,module,exports){
 function setInputStepInit(_sequencer) {
 
   return function setInputStep(options) {
@@ -49794,7 +49883,7 @@ function setInputStepInit(_sequencer) {
 }
 module.exports = setInputStepInit;
 
-},{}],174:[function(require,module,exports){
+},{}],176:[function(require,module,exports){
 /*
  * User Interface Handling Module
  */
diff --git a/dist/image-sequencer.min.js b/dist/image-sequencer.min.js
index 0b0780a0..38b53914 100644
--- a/dist/image-sequencer.min.js
+++ b/dist/image-sequencer.min.js
@@ -1 +1 @@
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uLens.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"},{}],18:[function(t,e,n){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"},{}],19:[function(t,e,n){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"},{}],20:[function(t,e,n){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"},{}],21:[function(t,e,n){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"},{}],22:[function(t,e,n){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"},{}],23:[function(t,e,n){(function(n,r){"use strict";var i=t("path"),a=t("ndarray"),o=t("omggif").GifReader,s=(t("ndarray-pack"),t("through"),t("data-uri-to-buffer"));function u(t,e){var n;try{n=new o(t)}catch(t){return void e(t)}if(n.numFrames()>0){var r=[n.numFrames(),n.height,n.width,4],i=new Uint8Array(r[0]*r[1]*r[2]*r[3]),s=a(i,r);try{for(var u=0;u<n.numFrames();++u)n.decodeAndBlitFrameRGBA(u,i.subarray(s.index(u,0,0,0),s.index(u+1,0,0,0)))}catch(t){return void e(t)}e(null,s.transpose(0,2,1))}else{r=[n.height,n.width,4],i=new Uint8Array(r[0]*r[1]*r[2]),s=a(i,r);try{n.decodeAndBlitFrameRGBA(0,i)}catch(t){return void e(t)}e(null,s.transpose(1,0))}}function l(t,e){r.nextTick(function(){try{var n=s(t);n?u(function(t){if(void 0===t[0]){for(var e=t.length,n=new Uint8Array(e),r=0;r<e;++r)n[r]=t.get(r);return n}return new Uint8Array(t)}(n),e):e(new Error("Error parsing data URI"))}catch(t){e(t)}})}e.exports=function(t,e,r){r||(r=e,e="");var o=i.extname(t);switch(e||o.toUpperCase()){case".GIF":!function(t,e){var n=new XMLHttpRequest;n.open("GET",t,!0),n.responseType="arraybuffer",n.overrideMimeType&&n.overrideMimeType("application/binary"),n.onerror=function(t){e(t)},n.onload=function(){4===n.readyState&&u(new Uint8Array(n.response),e)},n.send()}(t,r);break;default:n.isBuffer(t)&&(t="data:"+e+";base64,"+t.toString("base64")),0===t.indexOf("data:image/gif;")?l(t,r):function(t,e){var n=new Image;n.crossOrigin="Anonymous",n.onload=function(){var t=document.createElement("canvas");t.width=n.width,t.height=n.height;var r=t.getContext("2d");r.drawImage(n,0,0);var i=r.getImageData(0,0,n.width,n.height);e(null,a(new Uint8Array(i.data),[n.width,n.height,4],[4,4*n.width,1],0))},n.onerror=function(t){e(t)},n.src=t}(t,r)}}}).call(this,{isBuffer:t("../is-buffer/index.js")},t("_process"))},{"../is-buffer/index.js":55,_process:94,"data-uri-to-buffer":24,ndarray:67,"ndarray-pack":65,omggif:69,path:71,through:123}],24:[function(t,e,n){(function(t){e.exports=function(e){if(!/^data\:/i.test(e))throw new TypeError('`uri` does not appear to be a Data URI (must begin with "data:")');var n=(e=e.replace(/\r?\n/g,"")).indexOf(",");if(-1===n||n<=4)throw new TypeError("malformed data: URI");for(var r=e.substring(5,n).split(";"),i=!1,a="US-ASCII",o=0;o<r.length;o++)"base64"==r[o]?i=!0:0==r[o].indexOf("charset=")&&(a=r[o].substring(8));var s=unescape(e.substring(n+1)),u=new t(s,i?"base64":"ascii");return u.type=r[0]||"text/plain",u.charset=a,u}}).call(this,t("buffer").Buffer)},{buffer:4}],25:[function(t,e,n){(function(n){t("assert"),t("events").EventEmitter;var r=t("readable-stream"),i=t("util"),a=t("./TypedNeuQuant.js"),o=t("./LZWEncoder.js");function s(t){r.call(this,t),this.okayToPush=!0,this.resetData()}function u(t,e,n){var r=(n=n||{}).highWaterMark;s.call(this,{highWaterMark:r||0===r?r:65536}),this.width=~~t,this.height=~~e,this.transparent=null,this.transIndex=0,this.repeat=-1,this.delay=0,this.pixels=null,this.indexedPixels=null,this.colorDepth=null,this.colorTab=null,this.usedEntry=[],this.palSize=7,this.dispose=-1,this.firstFrame=!0,this.sample=10;var i=this;function a(){i.flushData()}this.on("writeHeader#stop",a),this.on("frame#stop",a),this.on("finish#stop",function(){a(),i.push(null)})}i.inherits(s,r),s.prototype._read=function(){this.okayToPush=!0},s.prototype.resetData=function(){this.data=[]},s.prototype.flushData=function(){if(!this.okayToPush){var t=new Error("GIF memory limit exceeded. Please `read` from GIF before writing additional frames/information.");return this.emit("error",t)}var e=new n(this.data);this.resetData(),this.okayToPush=this.push(e)},s.prototype.writeByte=function(t){this.data.push(t)},s.prototype.writeUTFBytes=function(t){for(var e=t.length,n=0;n<e;n++)this.writeByte(t.charCodeAt(n))},s.prototype.writeBytes=function(t,e,n){for(var r=n||t.length,i=e||0;i<r;i++)this.writeByte(t[i])},i.inherits(u,s),u.prototype.setDelay=function(t){this.delay=Math.round(t/10)},u.prototype.setFrameRate=function(t){this.delay=Math.round(100/t)},u.prototype.setDispose=function(t){t>=0&&(this.dispose=t)},u.prototype.setRepeat=function(t){this.repeat=t},u.prototype.setTransparent=function(t){this.transparent=t},u.prototype.analyzeImage=function(t){this.setImagePixels(this.removeAlphaChannel(t)),this.analyzePixels()},u.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},u.prototype.outputImage=function(){this.writePixels()},u.prototype.addFrame=function(t){this.emit("frame#start"),this.analyzeImage(t),this.writeImageInfo(),this.outputImage(),this.emit("frame#stop")},u.prototype.finish=function(){this.emit("finish#start"),this.writeByte(59),this.emit("finish#stop")},u.prototype.setQuality=function(t){t<1&&(t=1),this.sample=t},u.prototype.writeHeader=function(){this.emit("writeHeader#start"),this.writeUTFBytes("GIF89a"),this.emit("writeHeader#stop")},u.prototype.analyzePixels=function(){var t=this.pixels.length/3;this.indexedPixels=new Uint8Array(t);var e=new a(this.pixels,this.sample);e.buildColormap(),this.colorTab=e.getColormap();for(var n=0,r=0;r<t;r++){var i=e.lookupRGB(255&this.pixels[n++],255&this.pixels[n++],255&this.pixels[n++]);this.usedEntry[i]=!0,this.indexedPixels[r]=i}this.pixels=null,this.colorDepth=8,this.palSize=7,null!==this.transparent&&(this.transIndex=this.findClosest(this.transparent))},u.prototype.findClosest=function(t){if(null===this.colorTab)return-1;for(var e=(16711680&t)>>16,n=(65280&t)>>8,r=255&t,i=0,a=16777216,o=this.colorTab.length,s=0;s<o;){var u=e-(255&this.colorTab[s++]),l=n-(255&this.colorTab[s++]),c=r-(255&this.colorTab[s]),f=u*u+l*l+c*c,h=s/3;this.usedEntry[h]&&f<a&&(a=f,i=h),s++}return i},u.prototype.removeAlphaChannel=function(t){for(var e=this.width,n=this.height,r=new Uint8Array(e*n*3),i=0,a=0;a<n;a++)for(var o=0;o<e;o++){var s=a*e*4+4*o;r[i++]=t[s],r[i++]=t[s+1],r[i++]=t[s+2]}return r},u.prototype.setImagePixels=function(t){this.pixels=t},u.prototype.writeGraphicCtrlExt=function(){var t,e;this.writeByte(33),this.writeByte(249),this.writeByte(4),null===this.transparent?(t=0,e=0):(t=1,e=2),this.dispose>=0&&(e=7&dispose),e<<=2,this.writeByte(0|e|t),this.writeShort(this.delay),this.writeByte(this.transIndex),this.writeByte(0)},u.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)},u.prototype.writeLSD=function(){this.writeShort(this.width),this.writeShort(this.height),this.writeByte(240|this.palSize),this.writeByte(0),this.writeByte(0)},u.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)},u.prototype.writePalette=function(){this.writeBytes(this.colorTab);for(var t=768-this.colorTab.length,e=0;e<t;e++)this.writeByte(0)},u.prototype.writeShort=function(t){this.writeByte(255&t),this.writeByte(t>>8&255)},u.prototype.writePixels=function(){new o(this.width,this.height,this.indexedPixels,this.colorDepth).encode(this)},u.prototype.stream=function(){return this},u.ByteCapacitor=s,e.exports=u}).call(this,t("buffer").Buffer)},{"./LZWEncoder.js":26,"./TypedNeuQuant.js":27,assert:36,buffer:4,events:40,"readable-stream":34,util:131}],26:[function(t,e,n){var r=-1,i=12,a=5003,o=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];e.exports=function(t,e,n,s){var u,l,c,f,h,p,d,g,v,m=Math.max(2,s),_=new Uint8Array(256),w=new Int32Array(a),b=new Int32Array(a),y=0,x=0,k=!1;function E(t,e){_[l++]=t,l>=254&&M(e)}function S(t){A(a),x=g+2,k=!0,j(g,t)}function A(t){for(var e=0;e<t;++e)w[e]=-1}function M(t){l>0&&(t.writeByte(l),t.writeBytes(_,0,l),l=0)}function T(t){return(1<<t)-1}function I(){return 0===f?r:(--f,255&n[h++])}function j(t,e){for(u&=o[y],y>0?u|=t<<y:u=t,y+=p;y>=8;)E(255&u,e),u>>=8,y-=8;if((x>c||k)&&(k?(c=T(p=d),k=!1):c=++p==i?1<<i:T(p)),t==v){for(;y>0;)E(255&u,e),u>>=8,y-=8;M(e)}}this.encode=function(n){n.writeByte(m),f=t*e,h=0,function(t,e){var n,o,s,u,f,h,m;for(k=!1,c=T(p=d=t),v=1+(g=1<<t-1),x=g+2,l=0,u=I(),m=0,n=a;n<65536;n*=2)++m;m=8-m,A(h=a),j(g,e);t:for(;(o=I())!=r;)if(n=(o<<i)+u,w[s=o<<m^u]!==n){if(w[s]>=0){f=h-s,0===s&&(f=1);do{if((s-=f)<0&&(s+=h),w[s]===n){u=b[s];continue t}}while(w[s]>=0)}j(u,e),u=o,x<1<<i?(b[s]=x++,w[s]=n):S(e)}else u=b[s];j(u,e),j(v,e)}(m+1,n),n.writeByte(0)}}},{}],27:[function(t,e,n){var r=100,i=256,a=i-1,o=4,s=16,u=1<<s,l=10,c=10,f=u>>c,h=u<<l-c,p=6,d=(i>>3)*(1<<p),g=30,v=1024,m=256,_=1<<18,w=499,b=491,y=487,x=503,k=3*x;e.exports=function(t,e){var n,E,S,A,M;function T(t,e,r,i,a){n[e][0]-=t*(n[e][0]-r)/v,n[e][1]-=t*(n[e][1]-i)/v,n[e][2]-=t*(n[e][2]-a)/v}function I(t,e,r,a,o){for(var s,u,l=Math.abs(e-t),c=Math.min(e+t,i),f=e+1,h=e-1,p=1;f<c||h>l;)u=M[p++],f<c&&((s=n[f++])[0]-=u*(s[0]-r)/_,s[1]-=u*(s[1]-a)/_,s[2]-=u*(s[2]-o)/_),h>l&&((s=n[h--])[0]-=u*(s[0]-r)/_,s[1]-=u*(s[1]-a)/_,s[2]-=u*(s[2]-o)/_)}function j(t,e,r){var a,u,p,d,g,v=~(1<<31),m=v,_=-1,w=_;for(a=0;a<i;a++)u=n[a],(p=Math.abs(u[0]-t)+Math.abs(u[1]-e)+Math.abs(u[2]-r))<v&&(v=p,_=a),(d=p-(S[a]>>s-o))<m&&(m=d,w=a),g=A[a]>>c,A[a]-=g,S[a]+=g<<l;return A[_]+=f,S[_]-=h,w}this.buildColormap=function(){!function(){var t,e;for(n=[],E=new Int32Array(256),S=new Int32Array(i),A=new Int32Array(i),M=new Int32Array(i>>3),t=0;t<i;t++)e=(t<<o+8)/i,n[t]=new Float64Array([e,e,e,0]),A[t]=u/i,S[t]=0}(),function(){var n,i,a,s,u,l,c=t.length,f=30+(e-1)/3,h=c/(3*e),_=~~(h/r),E=v,S=d,A=S>>p;for(A<=1&&(A=0),n=0;n<A;n++)M[n]=E*((A*A-n*n)*m/(A*A));c<k?(e=1,i=3):i=c%w!=0?3*w:c%b!=0?3*b:c%y!=0?3*y:3*x;var R=0;for(n=0;n<h;)if(T(E,l=j(a=(255&t[R])<<o,s=(255&t[R+1])<<o,u=(255&t[R+2])<<o),a,s,u),0!==A&&I(A,l,a,s,u),(R+=i)>=c&&(R-=c),n++,0===_&&(_=1),n%_==0)for(E-=E/f,(A=(S-=S/g)>>p)<=1&&(A=0),l=0;l<A;l++)M[l]=E*((A*A-l*l)*m/(A*A))}(),function(){for(var t=0;t<i;t++)n[t][0]>>=o,n[t][1]>>=o,n[t][2]>>=o,n[t][3]=t}(),function(){var t,e,r,o,s,u,l=0,c=0;for(t=0;t<i;t++){for(s=t,u=(r=n[t])[1],e=t+1;e<i;e++)(o=n[e])[1]<u&&(s=e,u=o[1]);if(o=n[s],t!=s&&(e=o[0],o[0]=r[0],r[0]=e,e=o[1],o[1]=r[1],r[1]=e,e=o[2],o[2]=r[2],r[2]=e,e=o[3],o[3]=r[3],r[3]=e),u!=l){for(E[l]=c+t>>1,e=l+1;e<u;e++)E[e]=t;l=u,c=t}}for(E[l]=c+a>>1,e=l+1;e<256;e++)E[e]=a}()},this.getColormap=function(){for(var t=[],e=[],r=0;r<i;r++)e[n[r][3]]=r;for(var a=0,o=0;o<i;o++){var s=e[o];t[a++]=n[s][0],t[a++]=n[s][1],t[a++]=n[s][2]}return t},this.lookupRGB=function(t,e,r){for(var a,o,s,u=1e3,l=-1,c=E[e],f=c-1;c<i||f>=0;)c<i&&((s=(o=n[c])[1]-e)>=u?c=i:(c++,s<0&&(s=-s),(a=o[0]-t)<0&&(a=-a),(s+=a)<u&&((a=o[2]-r)<0&&(a=-a),(s+=a)<u&&(u=s,l=o[3])))),f>=0&&((s=e-(o=n[f])[1])>=u?f=-1:(f--,s<0&&(s=-s),(a=o[0]-t)<0&&(a=-a),(s+=a)<u&&((a=o[2]-r)<0&&(a=-a),(s+=a)<u&&(u=s,l=o[3]))));return l}}},{}],28:[function(t,e,n){e.exports=Array.isArray||function(t){return"[object Array]"==Object.prototype.toString.call(t)}},{}],29:[function(t,e,n){(function(n){e.exports=s;var r=Object.keys||function(t){var e=[];for(var n in t)e.push(n);return e},i=t("core-util-is");i.inherits=t("inherits");var a=t("./_stream_readable"),o=t("./_stream_writable");function s(t){if(!(this instanceof s))return new s(t);a.call(this,t),o.call(this,t),t&&!1===t.readable&&(this.readable=!1),t&&!1===t.writable&&(this.writable=!1),this.allowHalfOpen=!0,t&&!1===t.allowHalfOpen&&(this.allowHalfOpen=!1),this.once("end",u)}function u(){this.allowHalfOpen||this._writableState.ended||n.nextTick(this.end.bind(this))}i.inherits(s,a),function(t,e){for(var n=0,r=t.length;n<r;n++)e(t[n],n)}(r(o.prototype),function(t){s.prototype[t]||(s.prototype[t]=o.prototype[t])})}).call(this,t("_process"))},{"./_stream_readable":31,"./_stream_writable":33,_process:94,"core-util-is":8,inherits:53}],30:[function(t,e,n){e.exports=a;var r=t("./_stream_transform"),i=t("core-util-is");function a(t){if(!(this instanceof a))return new a(t);r.call(this,t)}i.inherits=t("inherits"),i.inherits(a,r),a.prototype._transform=function(t,e,n){n(null,t)}},{"./_stream_transform":32,"core-util-is":8,inherits:53}],31:[function(t,e,n){(function(n){e.exports=f;var r=t("isarray"),i=t("buffer").Buffer;f.ReadableState=c;var a=t("events").EventEmitter;a.listenerCount||(a.listenerCount=function(t,e){return t.listeners(e).length});var o,s=t("stream"),u=t("core-util-is");u.inherits=t("inherits");var l=t("util");function c(e,n){var r=t("./_stream_duplex"),i=(e=e||{}).highWaterMark,a=e.objectMode?16:16384;this.highWaterMark=i||0===i?i:a,this.highWaterMark=~~this.highWaterMark,this.buffer=[],this.length=0,this.pipes=null,this.pipesCount=0,this.flowing=null,this.ended=!1,this.endEmitted=!1,this.reading=!1,this.sync=!0,this.needReadable=!1,this.emittedReadable=!1,this.readableListening=!1,this.objectMode=!!e.objectMode,n instanceof r&&(this.objectMode=this.objectMode||!!e.readableObjectMode),this.defaultEncoding=e.defaultEncoding||"utf8",this.ranOut=!1,this.awaitDrain=0,this.readingMore=!1,this.decoder=null,this.encoding=null,e.encoding&&(o||(o=t("string_decoder/").StringDecoder),this.decoder=new o(e.encoding),this.encoding=e.encoding)}function f(e){t("./_stream_duplex");if(!(this instanceof f))return new f(e);this._readableState=new c(e,this),this.readable=!0,s.call(this)}function h(t,e,r,i,a){var o=function(t,e){var n=null;u.isBuffer(e)||u.isString(e)||u.isNullOrUndefined(e)||t.objectMode||(n=new TypeError("Invalid 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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 n=e.pipes,r=e.pipesCount;e.pipes=null,e.pipesCount=0,e.flowing=!1;for(var i=0;i<r;i++)n[i].emit("unpipe",this);return this}return-1===(i=function(t,e){for(var n=0,r=t.length;n<r;n++)if(t[n]===e)return n;return-1}(e.pipes,t))?this:(e.pipes.splice(i,1),e.pipesCount-=1,1===e.pipesCount&&(e.pipes=e.pipes[0]),t.emit("unpipe",this),this)},f.prototype.on=function(t,e){var r=s.prototype.on.call(this,t,e);if("data"===t&&!1!==this._readableState.flowing&&this.resume(),"readable"===t&&this.readable){var i=this._readableState;if(!i.readableListening)if(i.readableListening=!0,i.emittedReadable=!1,i.needReadable=!0,i.reading)i.length&&g(this);else{var a=this;n.nextTick(function(){l("readable nexttick read 0"),a.read(0)})}}return r},f.prototype.addListener=f.prototype.on,f.prototype.resume=function(){var t=this._readableState;return t.flowing||(l("resume"),t.flowing=!0,t.reading||(l("resume read 0"),this.read(0)),function(t,e){e.resumeScheduled||(e.resumeScheduled=!0,n.nextTick(function(){!function(t,e){e.resumeScheduled=!1,t.emit("resume"),m(t),e.flowing&&!e.reading&&t.read(0)}(t,e)}))}(this,t)),this},f.prototype.pause=function(){return l("call pause flowing=%j",this._readableState.flowing),!1!==this._readableState.flowing&&(l("pause"),this._readableState.flowing=!1,this.emit("pause")),this},f.prototype.wrap=function(t){var e=this._readableState,n=!1,r=this;for(var i in t.on("end",function(){if(l("wrapped end"),e.decoder&&!e.ended){var t=e.decoder.end();t&&t.length&&r.push(t)}r.push(null)}),t.on("data",function(i){(l("wrapped data"),e.decoder&&(i=e.decoder.write(i)),i&&(e.objectMode||i.length))&&(r.push(i)||(n=!0,t.pause()))}),t)u.isFunction(t[i])&&u.isUndefined(this[i])&&(this[i]=function(e){return function(){return t[e].apply(t,arguments)}}(i));return function(t,e){for(var n=0,r=t.length;n<r;n++)e(t[n],n)}(["error","close","destroy","pause","resume"],function(e){t.on(e,r.emit.bind(r,e))}),r._read=function(e){l("wrapped _read",e),n&&(n=!1,t.resume())},r},f._fromList=_}).call(this,t("_process"))},{"./_stream_duplex":29,_process:94,buffer:4,"core-util-is":8,events:40,inherits:53,isarray:28,stream:108,"string_decoder/":35,util:3}],32:[function(t,e,n){e.exports=o;var r=t("./_stream_duplex"),i=t("core-util-is");function a(t,e){this.afterTransform=function(t,n){return function(t,e,n){var r=t._transformState;r.transforming=!1;var a=r.writecb;if(!a)return t.emit("error",new Error("no writecb in Transform class"));r.writechunk=null,r.writecb=null,i.isNullOrUndefined(n)||t.push(n);a&&a(e);var o=t._readableState;o.reading=!1,(o.needReadable||o.length<o.highWaterMark)&&t._read(o.highWaterMark)}(e,t,n)},this.needTransform=!1,this.transforming=!1,this.writecb=null,this.writechunk=null}function o(t){if(!(this instanceof o))return new o(t);r.call(this,t),this._transformState=new a(t,this);var e=this;this._readableState.needReadable=!0,this._readableState.sync=!1,this.once("prefinish",function(){i.isFunction(this._flush)?this._flush(function(t){s(e,t)}):s(e)})}function s(t,e){if(e)return t.emit("error",e);var n=t._writableState,r=t._transformState;if(n.length)throw new Error("calling transform done when ws.length != 0");if(r.transforming)throw new Error("calling transform done when still transforming");return t.push(null)}i.inherits=t("inherits"),i.inherits(o,r),o.prototype.push=function(t,e){return this._transformState.needTransform=!1,r.prototype.push.call(this,t,e)},o.prototype._transform=function(t,e,n){throw new Error("not implemented")},o.prototype._write=function(t,e,n){var r=this._transformState;if(r.writecb=n,r.writechunk=t,r.writeencoding=e,!r.transforming){var i=this._readableState;(r.needTransform||i.needReadable||i.length<i.highWaterMark)&&this._read(i.highWaterMark)}},o.prototype._read=function(t){var e=this._transformState;i.isNull(e.writechunk)||!e.writecb||e.transforming?e.needTransform=!0:(e.transforming=!0,this._transform(e.writechunk,e.writeencoding,e.afterTransform))}},{"./_stream_duplex":29,"core-util-is":8,inherits:53}],33:[function(t,e,n){(function(n){e.exports=s;var r=t("buffer").Buffer;s.WritableState=o;var i=t("core-util-is");i.inherits=t("inherits");var a=t("stream");function o(e,r){var i=t("./_stream_duplex"),a=(e=e||{}).highWaterMark,o=e.objectMode?16:16384;this.highWaterMark=a||0===a?a:o,this.objectMode=!!e.objectMode,r instanceof i&&(this.objectMode=this.objectMode||!!e.writableObjectMode),this.highWaterMark=~~this.highWaterMark,this.needDrain=!1,this.ending=!1,this.ended=!1,this.finished=!1;var s=!1===e.decodeStrings;this.decodeStrings=!s,this.defaultEncoding=e.defaultEncoding||"utf8",this.length=0,this.writing=!1,this.corked=0,this.sync=!0,this.bufferProcessing=!1,this.onwrite=function(t){!function(t,e){var r=t._writableState,i=r.sync,a=r.writecb;if(function(t){t.writing=!1,t.writecb=null,t.length-=t.writelen,t.writelen=0}(r),e)!function(t,e,r,i,a){r?n.nextTick(function(){e.pendingcb--,a(i)}):(e.pendingcb--,a(i));t._writableState.errorEmitted=!0,t.emit("error",i)}(t,r,i,e,a);else{var o=f(t,r);o||r.corked||r.bufferProcessing||!r.buffer.length||c(t,r),i?n.nextTick(function(){l(t,r,o,a)}):l(t,r,o,a)}}(r,t)},this.writecb=null,this.writelen=0,this.buffer=[],this.pendingcb=0,this.prefinished=!1,this.errorEmitted=!1}function s(e){var n=t("./_stream_duplex");if(!(this instanceof s||this instanceof n))return new s(e);this._writableState=new o(e,this),this.writable=!0,a.call(this)}function u(t,e,n,r,i,a,o){e.writelen=r,e.writecb=o,e.writing=!0,e.sync=!0,n?t._writev(i,e.onwrite):t._write(i,a,e.onwrite),e.sync=!1}function l(t,e,n,r){n||function(t,e){0===e.length&&e.needDrain&&(e.needDrain=!1,t.emit("drain"))}(t,e),e.pendingcb--,r(),p(t,e)}function 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n=t.length>=this.charLength-this.charReceived?this.charLength-this.charReceived:t.length;if(t.copy(this.charBuffer,this.charReceived,0,n),this.charReceived+=n,this.charReceived<this.charLength)return"";if(t=t.slice(n,t.length),!((i=(e=this.charBuffer.slice(0,this.charLength).toString(this.encoding)).charCodeAt(e.length-1))>=55296&&i<=56319)){if(this.charReceived=this.charLength=0,0===t.length)return e;break}this.charLength+=this.surrogateSize,e=""}this.detectIncompleteChar(t);var r=t.length;this.charLength&&(t.copy(this.charBuffer,0,t.length-this.charReceived,r),r-=this.charReceived);var i;r=(e+=t.toString(this.encoding,0,r)).length-1;if((i=e.charCodeAt(r))>=55296&&i<=56319){var a=this.surrogateSize;return this.charLength+=a,this.charReceived+=a,this.charBuffer.copy(this.charBuffer,a,0,a),t.copy(this.charBuffer,0,0,a),e.substring(0,r)}return e},a.prototype.detectIncompleteChar=function(t){for(var e=t.length>=3?3:t.length;e>0;e--){var n=t[t.length-e];if(1==e&&n>>5==6){this.charLength=2;break}if(e<=2&&n>>4==14){this.charLength=3;break}if(e<=3&&n>>3==30){this.charLength=4;break}}this.charReceived=e},a.prototype.end=function(t){var e="";if(t&&t.length&&(e=this.write(t)),this.charReceived){var n=this.charReceived,r=this.charBuffer,i=this.encoding;e+=r.slice(0,n).toString(i)}return e}},{buffer:4}],36:[function(t,e,n){(function(n){"use strict";function r(t,e){if(t===e)return 0;for(var n=t.length,r=e.length,i=0,a=Math.min(n,r);i<a;++i)if(t[i]!==e[i]){n=t[i],r=e[i];break}return n<r?-1:r<n?1:0}function i(t){return n.Buffer&&"function"==typeof n.Buffer.isBuffer?n.Buffer.isBuffer(t):!(null==t||!t._isBuffer)}var a=t("util/"),o=Object.prototype.hasOwnProperty,s=Array.prototype.slice,u="foo"===function(){}.name;function l(t){return Object.prototype.toString.call(t)}function c(t){return!i(t)&&("function"==typeof n.ArrayBuffer&&("function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):!!t&&(t instanceof DataView||!!(t.buffer&&t.buffer instanceof ArrayBuffer))))}var f=e.exports=m,h=/\s*function\s+([^\(\s]*)\s*/;function p(t){if(a.isFunction(t)){if(u)return t.name;var e=t.toString().match(h);return e&&e[1]}}function d(t,e){return"string"==typeof t?t.length<e?t:t.slice(0,e):t}function g(t){if(u||!a.isFunction(t))return a.inspect(t);var e=p(t);return"[Function"+(e?": "+e:"")+"]"}function v(t,e,n,r,i){throw new f.AssertionError({message:n,actual:t,expected:e,operator:r,stackStartFunction:i})}function m(t,e){t||v(t,!0,e,"==",f.ok)}function _(t,e,n,o){if(t===e)return!0;if(i(t)&&i(e))return 0===r(t,e);if(a.isDate(t)&&a.isDate(e))return t.getTime()===e.getTime();if(a.isRegExp(t)&&a.isRegExp(e))return t.source===e.source&&t.global===e.global&&t.multiline===e.multiline&&t.lastIndex===e.lastIndex&&t.ignoreCase===e.ignoreCase;if(null!==t&&"object"==typeof t||null!==e&&"object"==typeof e){if(c(t)&&c(e)&&l(t)===l(e)&&!(t instanceof Float32Array||t instanceof Float64Array))return 0===r(new Uint8Array(t.buffer),new Uint8Array(e.buffer));if(i(t)!==i(e))return!1;var u=(o=o||{actual:[],expected:[]}).actual.indexOf(t);return-1!==u&&u===o.expected.indexOf(e)||(o.actual.push(t),o.expected.push(e),function(t,e,n,r){if(null===t||void 0===t||null===e||void 0===e)return!1;if(a.isPrimitive(t)||a.isPrimitive(e))return t===e;if(n&&Object.getPrototypeOf(t)!==Object.getPrototypeOf(e))return!1;var i=w(t),o=w(e);if(i&&!o||!i&&o)return!1;if(i)return t=s.call(t),e=s.call(e),_(t,e,n);var u,l,c=x(t),f=x(e);if(c.length!==f.length)return!1;for(c.sort(),f.sort(),l=c.length-1;l>=0;l--)if(c[l]!==f[l])return!1;for(l=c.length-1;l>=0;l--)if(u=c[l],!_(t[u],e[u],n,r))return!1;return!0}(t,e,n,o))}return n?t===e:t==e}function w(t){return"[object Arguments]"==Object.prototype.toString.call(t)}function b(t,e){if(!t||!e)return!1;if("[object RegExp]"==Object.prototype.toString.call(e))return e.test(t);try{if(t instanceof e)return!0}catch(t){}return!Error.isPrototypeOf(e)&&!0===e.call({},t)}function y(t,e,n,r){var i;if("function"!=typeof e)throw new TypeError('"block" argument must be a function');"string"==typeof n&&(r=n,n=null),i=function(t){var e;try{t()}catch(t){e=t}return e}(e),r=(n&&n.name?" 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s=i.indexOf("\n",o+1);i=i.substring(s+1)}this.stack=i}}},a.inherits(f.AssertionError,Error),f.fail=v,f.ok=m,f.equal=function(t,e,n){t!=e&&v(t,e,n,"==",f.equal)},f.notEqual=function(t,e,n){t==e&&v(t,e,n,"!=",f.notEqual)},f.deepEqual=function(t,e,n){_(t,e,!1)||v(t,e,n,"deepEqual",f.deepEqual)},f.deepStrictEqual=function(t,e,n){_(t,e,!0)||v(t,e,n,"deepStrictEqual",f.deepStrictEqual)},f.notDeepEqual=function(t,e,n){_(t,e,!1)&&v(t,e,n,"notDeepEqual",f.notDeepEqual)},f.notDeepStrictEqual=function t(e,n,r){_(e,n,!0)&&v(e,n,r,"notDeepStrictEqual",t)},f.strictEqual=function(t,e,n){t!==e&&v(t,e,n,"===",f.strictEqual)},f.notStrictEqual=function(t,e,n){t===e&&v(t,e,n,"!==",f.notStrictEqual)},f.throws=function(t,e,n){y(!0,t,e,n)},f.doesNotThrow=function(t,e,n){y(!1,t,e,n)},f.ifError=function(t){if(t)throw t};var x=Object.keys||function(t){var e=[];for(var n in t)o.call(t,n)&&e.push(n);return e}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"util/":131}],37:[function(t,e,n){(function(e,r){"use strict";var i=t("assert"),a=t("pako/lib/zlib/zstream"),o=t("pako/lib/zlib/deflate.js"),s=t("pako/lib/zlib/inflate.js"),u=t("pako/lib/zlib/constants");for(var l in u)n[l]=u[l];n.NONE=0,n.DEFLATE=1,n.INFLATE=2,n.GZIP=3,n.GUNZIP=4,n.DEFLATERAW=5,n.INFLATERAW=6,n.UNZIP=7;function c(t){if("number"!=typeof t||t<n.DEFLATE||t>n.UNZIP)throw new TypeError("Bad argument");this.dictionary=null,this.err=0,this.flush=0,this.init_done=!1,this.level=0,this.memLevel=0,this.mode=t,this.strategy=0,this.windowBits=0,this.write_in_progress=!1,this.pending_close=!1,this.gzip_id_bytes_read=0}c.prototype.close=function(){this.write_in_progress?this.pending_close=!0:(this.pending_close=!1,i(this.init_done,"close before init"),i(this.mode<=n.UNZIP),this.mode===n.DEFLATE||this.mode===n.GZIP||this.mode===n.DEFLATERAW?o.deflateEnd(this.strm):this.mode!==n.INFLATE&&this.mode!==n.GUNZIP&&this.mode!==n.INFLATERAW&&this.mode!==n.UNZIP||s.inflateEnd(this.strm),this.mode=n.NONE,this.dictionary=null)},c.prototype.write=function(t,e,n,r,i,a,o){return this._write(!0,t,e,n,r,i,a,o)},c.prototype.writeSync=function(t,e,n,r,i,a,o){return this._write(!1,t,e,n,r,i,a,o)},c.prototype._write=function(t,a,o,s,u,l,c,f){if(i.equal(arguments.length,8),i(this.init_done,"write before init"),i(this.mode!==n.NONE,"already finalized"),i.equal(!1,this.write_in_progress,"write already in progress"),i.equal(!1,this.pending_close,"close is pending"),this.write_in_progress=!0,i.equal(!1,void 0===a,"must provide flush value"),this.write_in_progress=!0,a!==n.Z_NO_FLUSH&&a!==n.Z_PARTIAL_FLUSH&&a!==n.Z_SYNC_FLUSH&&a!==n.Z_FULL_FLUSH&&a!==n.Z_FINISH&&a!==n.Z_BLOCK)throw new Error("Invalid flush value");if(null==o&&(o=r.alloc(0),u=0,s=0),this.strm.avail_in=u,this.strm.input=o,this.strm.next_in=s,this.strm.avail_out=f,this.strm.output=l,this.strm.next_out=c,this.flush=a,!t)return this._process(),this._checkError()?this._afterSync():void 0;var h=this;return e.nextTick(function(){h._process(),h._after()}),this},c.prototype._afterSync=function(){var t=this.strm.avail_out,e=this.strm.avail_in;return this.write_in_progress=!1,[e,t]},c.prototype._process=function(){var t=null;switch(this.mode){case n.DEFLATE:case n.GZIP:case n.DEFLATERAW:this.err=o.deflate(this.strm,this.flush);break;case n.UNZIP:switch(this.strm.avail_in>0&&(t=this.strm.next_in),this.gzip_id_bytes_read){case 0:if(null===t)break;if(31!==this.strm.input[t]){this.mode=n.INFLATE;break}if(this.gzip_id_bytes_read=1,t++,1===this.strm.avail_in)break;case 1:if(null===t)break;139===this.strm.input[t]?(this.gzip_id_bytes_read=2,this.mode=n.GUNZIP):this.mode=n.INFLATE;break;default:throw new Error("invalid number of gzip magic number bytes read")}case n.INFLATE:case n.GUNZIP:case n.INFLATERAW:for(this.err=s.inflate(this.strm,this.flush),this.err===n.Z_NEED_DICT&&this.dictionary&&(this.err=s.inflateSetDictionary(this.strm,this.dictionary),this.err===n.Z_OK?this.err=s.inflate(this.strm,this.flush):this.err===n.Z_DATA_ERROR&&(this.err=n.Z_NEED_DICT));this.strm.avail_in>0&&this.mode===n.GUNZIP&&this.err===n.Z_STREAM_END&&0!==this.strm.next_in[0];)this.reset(),this.err=s.inflate(this.strm,this.flush);break;default:throw new Error("Unknown mode "+this.mode)}},c.prototype._checkError=function(){switch(this.err){case n.Z_OK:case n.Z_BUF_ERROR:if(0!==this.strm.avail_out&&this.flush===n.Z_FINISH)return this._error("unexpected end of file"),!1;break;case n.Z_STREAM_END:break;case n.Z_NEED_DICT:return null==this.dictionary?this._error("Missing dictionary"):this._error("Bad dictionary"),!1;default:return this._error("Zlib error"),!1}return!0},c.prototype._after=function(){if(this._checkError()){var 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,r,a,o){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(r>=1&&r<=9,"invalid memlevel"),i(a===n.Z_FILTERED||a===n.Z_HUFFMAN_ONLY||a===n.Z_RLE||a===n.Z_FIXED||a===n.Z_DEFAULT_STRATEGY,"invalid strategy"),this._init(e,t,r,a,o),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,r,i,u){switch(this.level=t,this.windowBits=e,this.memLevel=r,this.strategy=i,this.flush=n.Z_NO_FLUSH,this.err=n.Z_OK,this.mode!==n.GZIP&&this.mode!==n.GUNZIP||(this.windowBits+=16),this.mode===n.UNZIP&&(this.windowBits+=32),this.mode!==n.DEFLATERAW&&this.mode!==n.INFLATERAW||(this.windowBits=-1*this.windowBits),this.strm=new a,this.mode){case n.DEFLATE:case n.GZIP:case n.DEFLATERAW:this.err=o.deflateInit2(this.strm,this.level,n.Z_DEFLATED,this.windowBits,this.memLevel,this.strategy);break;case n.INFLATE:case n.GUNZIP:case n.INFLATERAW:case n.UNZIP:this.err=s.inflateInit2(this.strm,this.windowBits);break;default:throw new Error("Unknown mode "+this.mode)}this.err!==n.Z_OK&&this._error("Init error"),this.dictionary=u,this.write_in_progress=!1,this.init_done=!0},c.prototype._setDictionary=function(){if(null!=this.dictionary){switch(this.err=n.Z_OK,this.mode){case n.DEFLATE:case n.DEFLATERAW:this.err=o.deflateSetDictionary(this.strm,this.dictionary)}this.err!==n.Z_OK&&this._error("Failed to set dictionary")}},c.prototype._reset=function(){switch(this.err=n.Z_OK,this.mode){case n.DEFLATE:case n.DEFLATERAW:case n.GZIP:this.err=o.deflateReset(this.strm);break;case n.INFLATE:case n.INFLATERAW:case n.GUNZIP:this.err=s.inflateReset(this.strm)}this.err!==n.Z_OK&&this._error("Failed to reset stream")},n.Zlib=c}).call(this,t("_process"),t("buffer").Buffer)},{_process:94,assert:36,buffer:4,"pako/lib/zlib/constants":43,"pako/lib/zlib/deflate.js":45,"pako/lib/zlib/inflate.js":47,"pako/lib/zlib/zstream":51}],38:[function(t,e,n){(function(e){"use strict";var r=t("buffer").Buffer,i=t("stream").Transform,a=t("./binding"),o=t("util"),s=t("assert").ok,u=t("buffer").kMaxLength,l="Cannot create final Buffer. It would be larger than 0x"+u.toString(16)+" bytes";a.Z_MIN_WINDOWBITS=8,a.Z_MAX_WINDOWBITS=15,a.Z_DEFAULT_WINDOWBITS=15,a.Z_MIN_CHUNK=64,a.Z_MAX_CHUNK=1/0,a.Z_DEFAULT_CHUNK=16384,a.Z_MIN_MEMLEVEL=1,a.Z_MAX_MEMLEVEL=9,a.Z_DEFAULT_MEMLEVEL=8,a.Z_MIN_LEVEL=-1,a.Z_MAX_LEVEL=9,a.Z_DEFAULT_LEVEL=a.Z_DEFAULT_COMPRESSION;for(var c=Object.keys(a),f=0;f<c.length;f++){var h=c[f];h.match(/^Z/)&&Object.defineProperty(n,h,{enumerable:!0,value:a[h],writable:!1})}for(var p={Z_OK:a.Z_OK,Z_STREAM_END:a.Z_STREAM_END,Z_NEED_DICT:a.Z_NEED_DICT,Z_ERRNO:a.Z_ERRNO,Z_STREAM_ERROR:a.Z_STREAM_ERROR,Z_DATA_ERROR:a.Z_DATA_ERROR,Z_MEM_ERROR:a.Z_MEM_ERROR,Z_BUF_ERROR:a.Z_BUF_ERROR,Z_VERSION_ERROR:a.Z_VERSION_ERROR},d=Object.keys(p),g=0;g<d.length;g++){var v=d[g];p[p[v]]=v}function m(t,e,n){var i=[],a=0;function o(){for(var e;null!==(e=t.read());)i.push(e),a+=e.length;t.once("readable",o)}function s(){var e,o=null;a>=u?o=new RangeError(l):e=r.concat(i,a),i=[],t.close(),n(o,e)}t.on("error",function(e){t.removeListener("end",s),t.removeListener("readable",o),n(e)}),t.on("end",s),t.end(e),o()}function _(t,e){if("string"==typeof e&&(e=r.from(e)),!r.isBuffer(e))throw new TypeError("Not a string or buffer");var n=t._finishFlushFlag;return t._processChunk(e,n)}function w(t){if(!(this instanceof w))return new w(t);M.call(this,t,a.DEFLATE)}function b(t){if(!(this instanceof b))return new b(t);M.call(this,t,a.INFLATE)}function y(t){if(!(this instanceof y))return new y(t);M.call(this,t,a.GZIP)}function x(t){if(!(this instanceof x))return new x(t);M.call(this,t,a.GUNZIP)}function k(t){if(!(this instanceof k))return new k(t);M.call(this,t,a.DEFLATERAW)}function E(t){if(!(this instanceof E))return new E(t);M.call(this,t,a.INFLATERAW)}function S(t){if(!(this instanceof S))return new S(t);M.call(this,t,a.UNZIP)}function A(t){return t===a.Z_NO_FLUSH||t===a.Z_PARTIAL_FLUSH||t===a.Z_SYNC_FLUSH||t===a.Z_FULL_FLUSH||t===a.Z_FINISH||t===a.Z_BLOCK}function M(t,e){var o=this;if(this._opts=t=t||{},this._chunkSize=t.chunkSize||n.Z_DEFAULT_CHUNK,i.call(this,t),t.flush&&!A(t.flush))throw new Error("Invalid flush flag: "+t.flush);if(t.finishFlush&&!A(t.finishFlush))throw new Error("Invalid flush flag: "+t.finishFlush);if(this._flushFlag=t.flush||a.Z_NO_FLUSH,this._finishFlushFlag=void 0!==t.finishFlush?t.finishFlush:a.Z_FINISH,t.chunkSize&&(t.chunkSize<n.Z_MIN_CHUNK||t.chunkSize>n.Z_MAX_CHUNK))throw new Error("Invalid chunk size: "+t.chunkSize);if(t.windowBits&&(t.windowBits<n.Z_MIN_WINDOWBITS||t.windowBits>n.Z_MAX_WINDOWBITS))throw new Error("Invalid windowBits: "+t.windowBits);if(t.level&&(t.level<n.Z_MIN_LEVEL||t.level>n.Z_MAX_LEVEL))throw new Error("Invalid compression level: "+t.level);if(t.memLevel&&(t.memLevel<n.Z_MIN_MEMLEVEL||t.memLevel>n.Z_MAX_MEMLEVEL))throw new Error("Invalid memLevel: "+t.memLevel);if(t.strategy&&t.strategy!=n.Z_FILTERED&&t.strategy!=n.Z_HUFFMAN_ONLY&&t.strategy!=n.Z_RLE&&t.strategy!=n.Z_FIXED&&t.strategy!=n.Z_DEFAULT_STRATEGY)throw new Error("Invalid strategy: "+t.strategy);if(t.dictionary&&!r.isBuffer(t.dictionary))throw new Error("Invalid dictionary: it should be a Buffer instance");this._handle=new a.Zlib(e);var s=this;this._hadError=!1,this._handle.onerror=function(t,e){T(s),s._hadError=!0;var r=new Error(t);r.errno=e,r.code=n.codes[e],s.emit("error",r)};var u=n.Z_DEFAULT_COMPRESSION;"number"==typeof t.level&&(u=t.level);var l=n.Z_DEFAULT_STRATEGY;"number"==typeof t.strategy&&(l=t.strategy),this._handle.init(t.windowBits||n.Z_DEFAULT_WINDOWBITS,u,t.memLevel||n.Z_DEFAULT_MEMLEVEL,l,t.dictionary),this._buffer=r.allocUnsafe(this._chunkSize),this._offset=0,this._level=u,this._strategy=l,this.once("end",this.close),Object.defineProperty(this,"_closed",{get:function(){return!o._handle},configurable:!0,enumerable:!0})}function T(t,n){n&&e.nextTick(n),t._handle&&(t._handle.close(),t._handle=null)}function I(t){t.emit("close")}Object.defineProperty(n,"codes",{enumerable:!0,value:Object.freeze(p),writable:!1}),n.Deflate=w,n.Inflate=b,n.Gzip=y,n.Gunzip=x,n.DeflateRaw=k,n.InflateRaw=E,n.Unzip=S,n.createDeflate=function(t){return new w(t)},n.createInflate=function(t){return new b(t)},n.createDeflateRaw=function(t){return new k(t)},n.createInflateRaw=function(t){return new E(t)},n.createGzip=function(t){return new y(t)},n.createGunzip=function(t){return new x(t)},n.createUnzip=function(t){return new S(t)},n.deflate=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new w(e),t,n)},n.deflateSync=function(t,e){return _(new w(e),t)},n.gzip=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new y(e),t,n)},n.gzipSync=function(t,e){return _(new y(e),t)},n.deflateRaw=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new k(e),t,n)},n.deflateRawSync=function(t,e){return _(new 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if(t.match_available){if((r=a._tr_tally(t,0,t.window[t.strstart-1]))&&et(t,!1),t.strstart++,t.lookahead--,0===t.strm.avail_out)return G}else t.match_available=1,t.strstart++,t.lookahead--}return t.match_available&&(r=a._tr_tally(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<D-1?t.strstart:D-1,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}function ut(t,e,n,r,i){this.good_length=t,this.max_lazy=e,this.nice_length=n,this.max_chain=r,this.func=i}function lt(t){var e;return t&&t.state?(t.total_in=t.total_out=0,t.data_type=S,(e=t.state).pending=0,e.pending_out=0,e.wrap<0&&(e.wrap=-e.wrap),e.status=e.wrap?N:Z,t.adler=2===e.wrap?0:1,e.last_flush=l,a._tr_init(e),d):K(t,v)}function ct(t){var e,n=lt(t);return n===d&&((e=t.state).window_size=2*e.w_size,Q(e.head),e.max_lazy_match=r[e.level].max_lazy,e.good_match=r[e.level].good_length,e.nice_match=r[e.level].nice_length,e.max_chain_length=r[e.level].max_chain,e.strstart=0,e.block_start=0,e.lookahead=0,e.insert=0,e.match_length=e.prev_length=D-1,e.match_available=0,e.ins_h=0),n}function ft(t,e,n,r,a,o){if(!t)return v;var s=1;if(e===w&&(e=6),r<0?(s=0,r=-r):r>15&&(s=2,r-=16),a<1||a>M||n!==A||r<8||r>15||e<0||e>9||o<0||o>k)return K(t,v);8===r&&(r=9);var u=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=A,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*C),this.dyn_dtree=new i.Buf16(2*(2*R+1)),this.bl_tree=new i.Buf16(2*(2*L+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(B+1),this.heap=new i.Buf16(2*j+1),Q(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new i.Buf16(2*j+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=u,u.strm=t,u.wrap=s,u.gzhead=null,u.w_bits=r,u.w_size=1<<u.w_bits,u.w_mask=u.w_size-1,u.hash_bits=a+7,u.hash_size=1<<u.hash_bits,u.hash_mask=u.hash_size-1,u.hash_shift=~~((u.hash_bits+D-1)/D),u.window=new i.Buf8(2*u.w_size),u.head=new i.Buf16(u.hash_size),u.prev=new i.Buf16(u.w_size),u.lit_bufsize=1<<a+6,u.pending_buf_size=4*u.lit_bufsize,u.pending_buf=new i.Buf8(u.pending_buf_size),u.d_buf=1*u.lit_bufsize,u.l_buf=3*u.lit_bufsize,u.level=e,u.strategy=o,u.method=n,ct(t)}r=[new ut(0,0,0,0,function(t,e){var n=65535;for(n>t.pending_buf_size-5&&(n=t.pending_buf_size-5);;){if(t.lookahead<=1){if(at(t),0===t.lookahead&&e===l)return G;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var r=t.block_start+n;if((0===t.strstart||t.strstart>=r)&&(t.lookahead=t.strstart-r,t.strstart=r,et(t,!1),0===t.strm.avail_out))return G;if(t.strstart-t.block_start>=t.w_size-O&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):(t.strstart>t.block_start&&(et(t,!1),t.strm.avail_out),G)}),new ut(4,4,8,4,ot),new ut(4,5,16,8,ot),new ut(4,6,32,32,ot),new ut(4,4,16,16,st),new ut(8,16,32,32,st),new ut(8,16,128,128,st),new ut(8,32,128,256,st),new ut(32,128,258,1024,st),new ut(32,258,258,4096,st)],n.deflateInit=function(t,e){return ft(t,e,A,T,I,E)},n.deflateInit2=ft,n.deflateReset=ct,n.deflateResetKeep=lt,n.deflateSetHeader=function(t,e){return t&&t.state?2!==t.state.wrap?v:(t.state.gzhead=e,d):v},n.deflate=function(t,e){var n,i,o,u;if(!t||!t.state||e>p||e<0)return t?K(t,v):v;if(i=t.state,!t.output||!t.input&&0!==t.avail_in||i.status===W&&e!==h)return K(t,0===t.avail_out?_:v);if(i.strm=t,n=i.last_flush,i.last_flush=e,i.status===N)if(2===i.wrap)t.adler=0,nt(i,31),nt(i,139),nt(i,8),i.gzhead?(nt(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)),nt(i,255&i.gzhead.time),nt(i,i.gzhead.time>>8&255),nt(i,i.gzhead.time>>16&255),nt(i,i.gzhead.time>>24&255),nt(i,9===i.level?2:i.strategy>=y||i.level<2?4:0),nt(i,255&i.gzhead.os),i.gzhead.extra&&i.gzhead.extra.length&&(nt(i,255&i.gzhead.extra.length),nt(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=P):(nt(i,0),nt(i,0),nt(i,0),nt(i,0),nt(i,0),nt(i,9===i.level?2:i.strategy>=y||i.level<2?4:0),nt(i,$),i.status=Z);else{var m=A+(i.w_bits-8<<4)<<8;m|=(i.strategy>=y||i.level<2?0:i.level<6?1:6===i.level?2:3)<<6,0!==i.strstart&&(m|=F),m+=31-m%31,i.status=Z,rt(i,m),0!==i.strstart&&(rt(i,t.adler>>>16),rt(i,65535&t.adler)),t.adler=1}if(i.status===P)if(i.gzhead.extra){for(o=i.pending;i.gzindex<(65535&i.gzhead.extra.length)&&(i.pending!==i.pending_buf_size||(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending!==i.pending_buf_size));)nt(i,255&i.gzhead.extra[i.gzindex]),i.gzindex++;i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),i.gzindex===i.gzhead.extra.length&&(i.gzindex=0,i.status=U)}else i.status=U;if(i.status===U)if(i.gzhead.name){o=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending===i.pending_buf_size)){u=1;break}u=i.gzindex<i.gzhead.name.length?255&i.gzhead.name.charCodeAt(i.gzindex++):0,nt(i,u)}while(0!==u);i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),0===u&&(i.gzindex=0,i.status=q)}else i.status=q;if(i.status===q)if(i.gzhead.comment){o=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending===i.pending_buf_size)){u=1;break}u=i.gzindex<i.gzhead.comment.length?255&i.gzhead.comment.charCodeAt(i.gzindex++):0,nt(i,u)}while(0!==u);i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),0===u&&(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&&(nt(i,255&t.adler),nt(i,t.adler>>8&255),t.adler=0,i.status=Z)):i.status=Z),0!==i.pending){if(tt(t),0===t.avail_out)return i.last_flush=-1,d}else if(0===t.avail_in&&J(e)<=J(n)&&e!==h)return K(t,_);if(i.status===W&&0!==t.avail_in)return K(t,_);if(0!==t.avail_in||0!==i.lookahead||e!==l&&i.status!==W){var w=i.strategy===y?function(t,e){for(var n;;){if(0===t.lookahead&&(at(t),0===t.lookahead)){if(e===l)return G;break}if(t.match_length=0,n=a._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++,n&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}(i,e):i.strategy===x?function(t,e){for(var n,r,i,o,s=t.window;;){if(t.lookahead<=z){if(at(t),t.lookahead<=z&&e===l)return G;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=D&&t.strstart>0&&(r=s[i=t.strstart-1])===s[++i]&&r===s[++i]&&r===s[++i]){o=t.strstart+z;do{}while(r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&i<o);t.match_length=z-(o-i),t.match_length>t.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=D?(n=a._tr_tally(t,1,t.match_length-D),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(n=a._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),n&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}(i,e):r[i.level].func(i,e);if(w!==Y&&w!==X||(i.status=W),w===G||w===Y)return 0===t.avail_out&&(i.last_flush=-1),d;if(w===H&&(e===c?a._tr_align(i):e!==p&&(a._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?g:(2===i.wrap?(nt(i,255&t.adler),nt(i,t.adler>>8&255),nt(i,t.adler>>16&255),nt(i,t.adler>>24&255),nt(i,255&t.total_in),nt(i,t.total_in>>8&255),nt(i,t.total_in>>16&255),nt(i,t.total_in>>24&255)):(rt(i,t.adler>>>16),rt(i,65535&t.adler)),tt(t),i.wrap>0&&(i.wrap=-i.wrap),0!==i.pending?d:g)},n.deflateEnd=function(t){var e;return t&&t.state?(e=t.state.status)!==N&&e!==P&&e!==U&&e!==q&&e!==V&&e!==Z&&e!==W?K(t,v):(t.state=null,e===Z?K(t,m):d):v},n.deflateSetDictionary=function(t,e){var n,r,a,s,u,l,c,f,h=e.length;if(!t||!t.state)return v;if(2===(s=(n=t.state).wrap)||1===s&&n.status!==N||n.lookahead)return v;for(1===s&&(t.adler=o(t.adler,e,h,0)),n.wrap=0,h>=n.w_size&&(0===s&&(Q(n.head),n.strstart=0,n.block_start=0,n.insert=0),f=new i.Buf8(n.w_size),i.arraySet(f,e,h-n.w_size,n.w_size,0),e=f,h=n.w_size),u=t.avail_in,l=t.next_in,c=t.input,t.avail_in=h,t.next_in=0,t.input=e,at(n);n.lookahead>=D;){r=n.strstart,a=n.lookahead-(D-1);do{n.ins_h=(n.ins_h<<n.hash_shift^n.window[r+D-1])&n.hash_mask,n.prev[r&n.w_mask]=n.head[n.ins_h],n.head[n.ins_h]=r,r++}while(--a);n.strstart=r,n.lookahead=D-1,at(n)}return n.strstart+=n.lookahead,n.block_start=n.strstart,n.insert=n.lookahead,n.lookahead=0,n.match_length=n.prev_length=D-1,n.match_available=0,t.next_in=l,t.input=c,t.avail_in=u,n.wrap=s,d},n.deflateInfo="pako deflate (from Nodeca project)"},{"../utils/common":41,"./adler32":42,"./crc32":44,"./messages":49,"./trees":50}],46:[function(t,e,n){"use strict";e.exports=function(t,e){var n,r,i,a,o,s,u,l,c,f,h,p,d,g,v,m,_,w,b,y,x,k,E,S,A;n=t.state,r=t.next_in,S=t.input,i=r+(t.avail_in-5),a=t.next_out,A=t.output,o=a-(e-t.avail_out),s=a+(t.avail_out-257),u=n.dmax,l=n.wsize,c=n.whave,f=n.wnext,h=n.window,p=n.hold,d=n.bits,g=n.lencode,v=n.distcode,m=(1<<n.lenbits)-1,_=(1<<n.distbits)-1;t:do{d<15&&(p+=S[r++]<<d,d+=8,p+=S[r++]<<d,d+=8),w=g[p&m];e:for(;;){if(p>>>=b=w>>>24,d-=b,0===(b=w>>>16&255))A[a++]=65535&w;else{if(!(16&b)){if(0==(64&b)){w=g[(65535&w)+(p&(1<<b)-1)];continue e}if(32&b){n.mode=12;break t}t.msg="invalid literal/length code",n.mode=30;break t}y=65535&w,(b&=15)&&(d<b&&(p+=S[r++]<<d,d+=8),y+=p&(1<<b)-1,p>>>=b,d-=b),d<15&&(p+=S[r++]<<d,d+=8,p+=S[r++]<<d,d+=8),w=v[p&_];n:for(;;){if(p>>>=b=w>>>24,d-=b,!(16&(b=w>>>16&255))){if(0==(64&b)){w=v[(65535&w)+(p&(1<<b)-1)];continue n}t.msg="invalid distance code",n.mode=30;break t}if(x=65535&w,d<(b&=15)&&(p+=S[r++]<<d,(d+=8)<b&&(p+=S[r++]<<d,d+=8)),(x+=p&(1<<b)-1)>u){t.msg="invalid distance too far back",n.mode=30;break t}if(p>>>=b,d-=b,x>(b=a-o)){if((b=x-b)>c&&n.sane){t.msg="invalid distance too far back",n.mode=30;break t}if(k=0,E=h,0===f){if(k+=l-b,b<y){y-=b;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}}else if(f<b){if(k+=l+f-b,(b-=f)<y){y-=b;do{A[a++]=h[k++]}while(--b);if(k=0,f<y){y-=b=f;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}}}else if(k+=f-b,b<y){y-=b;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}for(;y>2;)A[a++]=E[k++],A[a++]=E[k++],A[a++]=E[k++],y-=3;y&&(A[a++]=E[k++],y>1&&(A[a++]=E[k++]))}else{k=a-x;do{A[a++]=A[k++],A[a++]=A[k++],A[a++]=A[k++],y-=3}while(y>2);y&&(A[a++]=A[k++],y>1&&(A[a++]=A[k++]))}break}}break}}while(r<i&&a<s);r-=y=d>>3,p&=(1<<(d-=y<<3))-1,t.next_in=r,t.next_out=a,t.avail_in=r<i?i-r+5:5-(r-i),t.avail_out=a<s?s-a+257:257-(a-s),n.hold=p,n.bits=d}},{}],47:[function(t,e,n){"use strict";var r=t("../utils/common"),i=t("./adler32"),a=t("./crc32"),o=t("./inffast"),s=t("./inftrees"),u=0,l=1,c=2,f=4,h=5,p=6,d=0,g=1,v=2,m=-2,_=-3,w=-4,b=-5,y=8,x=1,k=2,E=3,S=4,A=5,M=6,T=7,I=8,j=9,R=10,L=11,C=12,B=13,D=14,z=15,O=16,F=17,N=18,P=19,U=20,q=21,V=22,Z=23,W=24,G=25,H=26,Y=27,X=28,$=29,K=30,J=31,Q=32,tt=852,et=592,nt=15;function rt(t){return(t>>>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=x,e.last=0,e.havedict=0,e.dmax=32768,e.head=null,e.hold=0,e.bits=0,e.lencode=e.lendyn=new r.Buf32(tt),e.distcode=e.distdyn=new r.Buf32(et),e.sane=1,e.back=-1,d):m}function at(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,it(t)):m}function ot(t,e){var n,r;return t&&t.state?(r=t.state,e<0?(n=0,e=-e):(n=1+(e>>4),e<48&&(e&=15)),e&&(e<8||e>15)?m:(null!==r.window&&r.wbits!==e&&(r.window=null),r.wrap=n,r.wbits=e,at(t))):m}function st(t,e){var n,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 r.Buf16(320),this.work=new r.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0},t.state=i,i.window=null,(n=ot(t,e))!==d&&(t.state=null),n):m}var ut,lt,ct=!0;function ft(t){if(ct){var e;for(ut=new r.Buf32(512),lt=new r.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(l,t.lens,0,288,ut,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;s(c,t.lens,0,32,lt,0,t.work,{bits:5}),ct=!1}t.lencode=ut,t.lenbits=9,t.distcode=lt,t.distbits=5}function ht(t,e,n,i){var a,o=t.state;return null===o.window&&(o.wsize=1<<o.wbits,o.wnext=0,o.whave=0,o.window=new r.Buf8(o.wsize)),i>=o.wsize?(r.arraySet(o.window,e,n-o.wsize,o.wsize,0),o.wnext=0,o.whave=o.wsize):((a=o.wsize-o.wnext)>i&&(a=i),r.arraySet(o.window,e,n-i,a,o.wnext),(i-=a)?(r.arraySet(o.window,e,n-i,i,0),o.wnext=i,o.whave=o.wsize):(o.wnext+=a,o.wnext===o.wsize&&(o.wnext=0),o.whave<o.wsize&&(o.whave+=a))),0}n.inflateReset=at,n.inflateReset2=ot,n.inflateResetKeep=it,n.inflateInit=function(t){return st(t,nt)},n.inflateInit2=st,n.inflate=function(t,e){var n,tt,et,nt,it,at,ot,st,ut,lt,ct,pt,dt,gt,vt,mt,_t,wt,bt,yt,xt,kt,Et,St,At=0,Mt=new r.Buf8(4),Tt=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];if(!t||!t.state||!t.output||!t.input&&0!==t.avail_in)return m;(n=t.state).mode===C&&(n.mode=B),it=t.next_out,et=t.output,ot=t.avail_out,nt=t.next_in,tt=t.input,at=t.avail_in,st=n.hold,ut=n.bits,lt=at,ct=ot,kt=d;t:for(;;)switch(n.mode){case x:if(0===n.wrap){n.mode=B;break}for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(2&n.wrap&&35615===st){n.check=0,Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0),st=0,ut=0,n.mode=k;break}if(n.flags=0,n.head&&(n.head.done=!1),!(1&n.wrap)||(((255&st)<<8)+(st>>8))%31){t.msg="incorrect header check",n.mode=K;break}if((15&st)!==y){t.msg="unknown compression method",n.mode=K;break}if(ut-=4,xt=8+(15&(st>>>=4)),0===n.wbits)n.wbits=xt;else if(xt>n.wbits){t.msg="invalid window size",n.mode=K;break}n.dmax=1<<xt,t.adler=n.check=1,n.mode=512&st?R:C,st=0,ut=0;break;case k:for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(n.flags=st,(255&n.flags)!==y){t.msg="unknown compression method",n.mode=K;break}if(57344&n.flags){t.msg="unknown header flags set",n.mode=K;break}n.head&&(n.head.text=st>>8&1),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0,n.mode=E;case E:for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.head&&(n.head.time=st),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,Mt[2]=st>>>16&255,Mt[3]=st>>>24&255,n.check=a(n.check,Mt,4,0)),st=0,ut=0,n.mode=S;case S:for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.head&&(n.head.xflags=255&st,n.head.os=st>>8),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0,n.mode=A;case A:if(1024&n.flags){for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.length=st,n.head&&(n.head.extra_len=st),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0}else n.head&&(n.head.extra=null);n.mode=M;case M:if(1024&n.flags&&((pt=n.length)>at&&(pt=at),pt&&(n.head&&(xt=n.head.extra_len-n.length,n.head.extra||(n.head.extra=new Array(n.head.extra_len)),r.arraySet(n.head.extra,tt,nt,pt,xt)),512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,n.length-=pt),n.length))break t;n.length=0,n.mode=T;case T:if(2048&n.flags){if(0===at)break t;pt=0;do{xt=tt[nt+pt++],n.head&&xt&&n.length<65536&&(n.head.name+=String.fromCharCode(xt))}while(xt&&pt<at);if(512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,xt)break t}else n.head&&(n.head.name=null);n.length=0,n.mode=I;case I:if(4096&n.flags){if(0===at)break t;pt=0;do{xt=tt[nt+pt++],n.head&&xt&&n.length<65536&&(n.head.comment+=String.fromCharCode(xt))}while(xt&&pt<at);if(512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,xt)break t}else n.head&&(n.head.comment=null);n.mode=j;case j:if(512&n.flags){for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st!==(65535&n.check)){t.msg="header crc mismatch",n.mode=K;break}st=0,ut=0}n.head&&(n.head.hcrc=n.flags>>9&1,n.head.done=!0),t.adler=n.check=0,n.mode=C;break;case R:for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}t.adler=n.check=rt(st),st=0,ut=0,n.mode=L;case L:if(0===n.havedict)return t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,v;t.adler=n.check=1,n.mode=C;case C:if(e===h||e===p)break t;case B:if(n.last){st>>>=7&ut,ut-=7&ut,n.mode=Y;break}for(;ut<3;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}switch(n.last=1&st,ut-=1,3&(st>>>=1)){case 0:n.mode=D;break;case 1:if(ft(n),n.mode=U,e===p){st>>>=2,ut-=2;break t}break;case 2:n.mode=F;break;case 3:t.msg="invalid block type",n.mode=K}st>>>=2,ut-=2;break;case D:for(st>>>=7&ut,ut-=7&ut;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if((65535&st)!=(st>>>16^65535)){t.msg="invalid stored block lengths",n.mode=K;break}if(n.length=65535&st,st=0,ut=0,n.mode=z,e===p)break t;case z:n.mode=O;case O:if(pt=n.length){if(pt>at&&(pt=at),pt>ot&&(pt=ot),0===pt)break t;r.arraySet(et,tt,nt,pt,it),at-=pt,nt+=pt,ot-=pt,it+=pt,n.length-=pt;break}n.mode=C;break;case F:for(;ut<14;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(n.nlen=257+(31&st),st>>>=5,ut-=5,n.ndist=1+(31&st),st>>>=5,ut-=5,n.ncode=4+(15&st),st>>>=4,ut-=4,n.nlen>286||n.ndist>30){t.msg="too many length or distance symbols",n.mode=K;break}n.have=0,n.mode=N;case N:for(;n.have<n.ncode;){for(;ut<3;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.lens[Tt[n.have++]]=7&st,st>>>=3,ut-=3}for(;n.have<19;)n.lens[Tt[n.have++]]=0;if(n.lencode=n.lendyn,n.lenbits=7,Et={bits:n.lenbits},kt=s(u,n.lens,0,19,n.lencode,0,n.work,Et),n.lenbits=Et.bits,kt){t.msg="invalid code lengths set",n.mode=K;break}n.have=0,n.mode=P;case P:for(;n.have<n.nlen+n.ndist;){for(;mt=(At=n.lencode[st&(1<<n.lenbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(_t<16)st>>>=vt,ut-=vt,n.lens[n.have++]=_t;else{if(16===_t){for(St=vt+2;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st>>>=vt,ut-=vt,0===n.have){t.msg="invalid bit length repeat",n.mode=K;break}xt=n.lens[n.have-1],pt=3+(3&st),st>>>=2,ut-=2}else if(17===_t){for(St=vt+3;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}ut-=vt,xt=0,pt=3+(7&(st>>>=vt)),st>>>=3,ut-=3}else{for(St=vt+7;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}ut-=vt,xt=0,pt=11+(127&(st>>>=vt)),st>>>=7,ut-=7}if(n.have+pt>n.nlen+n.ndist){t.msg="invalid bit length repeat",n.mode=K;break}for(;pt--;)n.lens[n.have++]=xt}}if(n.mode===K)break;if(0===n.lens[256]){t.msg="invalid code -- missing end-of-block",n.mode=K;break}if(n.lenbits=9,Et={bits:n.lenbits},kt=s(l,n.lens,0,n.nlen,n.lencode,0,n.work,Et),n.lenbits=Et.bits,kt){t.msg="invalid literal/lengths set",n.mode=K;break}if(n.distbits=6,n.distcode=n.distdyn,Et={bits:n.distbits},kt=s(c,n.lens,n.nlen,n.ndist,n.distcode,0,n.work,Et),n.distbits=Et.bits,kt){t.msg="invalid distances set",n.mode=K;break}if(n.mode=U,e===p)break t;case U:n.mode=q;case q:if(at>=6&&ot>=258){t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,o(t,ct),it=t.next_out,et=t.output,ot=t.avail_out,nt=t.next_in,tt=t.input,at=t.avail_in,st=n.hold,ut=n.bits,n.mode===C&&(n.back=-1);break}for(n.back=0;mt=(At=n.lencode[st&(1<<n.lenbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(mt&&0==(240&mt)){for(wt=vt,bt=mt,yt=_t;mt=(At=n.lencode[yt+((st&(1<<wt+bt)-1)>>wt)])>>>16&255,_t=65535&At,!(wt+(vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}st>>>=wt,ut-=wt,n.back+=wt}if(st>>>=vt,ut-=vt,n.back+=vt,n.length=_t,0===mt){n.mode=H;break}if(32&mt){n.back=-1,n.mode=C;break}if(64&mt){t.msg="invalid literal/length code",n.mode=K;break}n.extra=15&mt,n.mode=V;case V:if(n.extra){for(St=n.extra;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.length+=st&(1<<n.extra)-1,st>>>=n.extra,ut-=n.extra,n.back+=n.extra}n.was=n.length,n.mode=Z;case Z:for(;mt=(At=n.distcode[st&(1<<n.distbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(0==(240&mt)){for(wt=vt,bt=mt,yt=_t;mt=(At=n.distcode[yt+((st&(1<<wt+bt)-1)>>wt)])>>>16&255,_t=65535&At,!(wt+(vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}st>>>=wt,ut-=wt,n.back+=wt}if(st>>>=vt,ut-=vt,n.back+=vt,64&mt){t.msg="invalid distance code",n.mode=K;break}n.offset=_t,n.extra=15&mt,n.mode=W;case W:if(n.extra){for(St=n.extra;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.offset+=st&(1<<n.extra)-1,st>>>=n.extra,ut-=n.extra,n.back+=n.extra}if(n.offset>n.dmax){t.msg="invalid distance too far back",n.mode=K;break}n.mode=G;case G:if(0===ot)break t;if(pt=ct-ot,n.offset>pt){if((pt=n.offset-pt)>n.whave&&n.sane){t.msg="invalid distance too far back",n.mode=K;break}pt>n.wnext?(pt-=n.wnext,dt=n.wsize-pt):dt=n.wnext-pt,pt>n.length&&(pt=n.length),gt=n.window}else gt=et,dt=it-n.offset,pt=n.length;pt>ot&&(pt=ot),ot-=pt,n.length-=pt;do{et[it++]=gt[dt++]}while(--pt);0===n.length&&(n.mode=q);break;case H:if(0===ot)break t;et[it++]=n.length,ot--,n.mode=q;break;case Y:if(n.wrap){for(;ut<32;){if(0===at)break t;at--,st|=tt[nt++]<<ut,ut+=8}if(ct-=ot,t.total_out+=ct,n.total+=ct,ct&&(t.adler=n.check=n.flags?a(n.check,et,ct,it-ct):i(n.check,et,ct,it-ct)),ct=ot,(n.flags?st:rt(st))!==n.check){t.msg="incorrect data check",n.mode=K;break}st=0,ut=0}n.mode=X;case X:if(n.wrap&&n.flags){for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st!==(4294967295&n.total)){t.msg="incorrect length check",n.mode=K;break}st=0,ut=0}n.mode=$;case $:kt=g;break t;case K:kt=_;break t;case J:return w;case Q:default:return m}return t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,(n.wsize||ct!==t.avail_out&&n.mode<K&&(n.mode<Y||e!==f))&&ht(t,t.output,t.next_out,ct-t.avail_out)?(n.mode=J,w):(lt-=t.avail_in,ct-=t.avail_out,t.total_in+=lt,t.total_out+=ct,n.total+=ct,n.wrap&&ct&&(t.adler=n.check=n.flags?a(n.check,et,ct,t.next_out-ct):i(n.check,et,ct,t.next_out-ct)),t.data_type=n.bits+(n.last?64:0)+(n.mode===C?128:0)+(n.mode===U||n.mode===z?256:0),(0===lt&&0===ct||e===f)&&kt===d&&(kt=b),kt)},n.inflateEnd=function(t){if(!t||!t.state)return m;var e=t.state;return e.window&&(e.window=null),t.state=null,d},n.inflateGetHeader=function(t,e){var n;return t&&t.state?0==(2&(n=t.state).wrap)?m:(n.head=e,e.done=!1,d):m},n.inflateSetDictionary=function(t,e){var n,r=e.length;return t&&t.state?0!==(n=t.state).wrap&&n.mode!==L?m:n.mode===L&&i(1,e,r,0)!==n.check?_:ht(t,e,r,r)?(n.mode=J,w):(n.havedict=1,d):m},n.inflateInfo="pako inflate (from Nodeca project)"},{"../utils/common":41,"./adler32":42,"./crc32":44,"./inffast":46,"./inftrees":48}],48:[function(t,e,n){"use strict";var r=t("../utils/common"),i=[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],a=[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],o=[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],s=[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];e.exports=function(t,e,n,u,l,c,f,h){var p,d,g,v,m,_,w,b,y,x=h.bits,k=0,E=0,S=0,A=0,M=0,T=0,I=0,j=0,R=0,L=0,C=null,B=0,D=new r.Buf16(16),z=new r.Buf16(16),O=null,F=0;for(k=0;k<=15;k++)D[k]=0;for(E=0;E<u;E++)D[e[n+E]]++;for(M=x,A=15;A>=1&&0===D[A];A--);if(M>A&&(M=A),0===A)return l[c++]=20971520,l[c++]=20971520,h.bits=1,0;for(S=1;S<A&&0===D[S];S++);for(M<S&&(M=S),j=1,k=1;k<=15;k++)if(j<<=1,(j-=D[k])<0)return-1;if(j>0&&(0===t||1!==A))return-1;for(z[1]=0,k=1;k<15;k++)z[k+1]=z[k]+D[k];for(E=0;E<u;E++)0!==e[n+E]&&(f[z[e[n+E]]++]=E);if(0===t?(C=O=f,_=19):1===t?(C=i,B-=257,O=a,F-=257,_=256):(C=o,O=s,_=-1),L=0,E=0,k=S,m=c,T=M,I=0,g=-1,v=(R=1<<M)-1,1===t&&R>852||2===t&&R>592)return 1;for(;;){w=k-I,f[E]<_?(b=0,y=f[E]):f[E]>_?(b=O[F+f[E]],y=C[B+f[E]]):(b=96,y=0),p=1<<k-I,S=d=1<<T;do{l[m+(L>>I)+(d-=p)]=w<<24|b<<16|y|0}while(0!==d);for(p=1<<k-1;L&p;)p>>=1;if(0!==p?(L&=p-1,L+=p):L=0,E++,0==--D[k]){if(k===A)break;k=e[n+f[E]]}if(k>M&&(L&v)!==g){for(0===I&&(I=M),m+=S,j=1<<(T=k-I);T+I<A&&!((j-=D[T+I])<=0);)T++,j<<=1;if(R+=1<<T,1===t&&R>852||2===t&&R>592)return 1;l[g=L&v]=M<<24|T<<16|m-c|0}}return 0!==L&&(l[m+L]=k-I<<24|64<<16|0),h.bits=M,0}},{"../utils/common":41}],49:[function(t,e,n){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream 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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(!((T=t[e++])>=0))throw Error("Invalid block size");if(0===T)break;e+=T}break;default:throw new Error("Unknown graphic control label: 0x"+t[e-1].toString(16))}break;case 44:var m=t[e++]|t[e++]<<8,_=t[e++]|t[e++]<<8,w=t[e++]|t[e++]<<8,b=t[e++]|t[e++]<<8,y=t[e++],x=y>>6&1,k=1<<1+(7&y),E=u,S=l,A=!1;y>>7&&(A=!0,E=e,S=k,e+=3*k);var M=e;for(e++;;){var T;if(!((T=t[e++])>=0))throw Error("Invalid block size");if(0===T)break;e+=T}f.push({x:m,y:_,width:w,height:b,has_local_palette:A,palette_offset:E,palette_size:S,data_offset:M,data_length:e-M,transparent_index:p,interlaced:!!x,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 g},this.frameInfo=function(t){if(t<0||t>=f.length)throw new Error("Frame index out of range.");return 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y=t[u+3*b],x=t[u+3*b+1],k=t[u+3*b+2];i[g++]=y,i[g++]=x,i[g++]=k,i[g++]=255}--h}}}}catch(t){}},{}],70:[function(t,e,n){(function(n){var r=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=r(),this.charm.pipe(n.stdout),this.charm.write("\n\n\n")}function a(t,e,n){for(n=n||" ";t.length<e;)t=n+t;return t}function o(t,e,n,r){t=(t+"").replace(/[^0-9+\-Ee.]/g,"");var i=isFinite(+t)?+t:0,a=isFinite(+e)?Math.abs(e):0,o=void 0===r?",":r,s=void 0===n?".":n,u="";return(u=(a?function(t,e){var 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n=[],r=0;r<t.length;r++)e(t[r],r,t)&&n.push(t[r]);return n}n.resolve=function(){for(var n="",r=!1,i=arguments.length-1;i>=-1&&!r;i--){var o=i>=0?arguments[i]:t.cwd();if("string"!=typeof o)throw new TypeError("Arguments to path.resolve must be strings");o&&(n=o+"/"+n,r="/"===o.charAt(0))}return n=e(a(n.split("/"),function(t){return!!t}),!r).join("/"),(r?"/":"")+n||"."},n.normalize=function(t){var r=n.isAbsolute(t),i="/"===o(t,-1);return(t=e(a(t.split("/"),function(t){return!!t}),!r).join("/"))||r||(t="."),t&&i&&(t+="/"),(r?"/":"")+t},n.isAbsolute=function(t){return"/"===t.charAt(0)},n.join=function(){var t=Array.prototype.slice.call(arguments,0);return n.normalize(a(t,function(t,e){if("string"!=typeof t)throw new TypeError("Arguments to path.join must be strings");return t}).join("/"))},n.relative=function(t,e){function r(t){for(var e=0;e<t.length&&""===t[e];e++);for(var n=t.length-1;n>=0&&""===t[n];n--);return 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g,v=t[c],m=t[c+1],_=t[c+2];a.inputHasAlpha?(g=t[c+3],o||(g/=255,v=Math.min(Math.max(Math.round((1-g)*h.red+g*v),0),255),m=Math.min(Math.max(Math.round((1-g)*h.green+g*m),0),255),_=Math.min(Math.max(Math.round((1-g)*h.blue+g*_),0),255))):g=255,u[f]=v,u[f+1]=m,u[f+2]=_,o&&(u[f+3]=g),c+=l,f+=s}return u}}).call(this,t("buffer").Buffer)},{"./constants":75,buffer:4}],74:[function(t,e,n){(function(n,r){"use strict";var i=t("util"),a=t("stream"),o=e.exports=function(){a.call(this),this._buffers=[],this._buffered=0,this._reads=[],this._paused=!1,this._encoding="utf8",this.writable=!0};i.inherits(o,a),o.prototype.read=function(t,e){this._reads.push({length:Math.abs(t),allowLess:t<0,func:e}),n.nextTick(function(){this._process(),this._paused&&this._reads.length>0&&(this._paused=!1,this.emit("drain"))}.bind(this))},o.prototype.write=function(t,e){return this.writable?(n=r.isBuffer(t)?t:new 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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))},o.prototype._processRead=function(t){this._reads.shift();for(var e=0,n=0,i=new r(t.length);e<t.length;){var a=this._buffers[n++],o=Math.min(a.length,t.length-e);a.copy(i,e,0,o),e+=o,o!==a.length&&(this._buffers[--n]=a.slice(o))}n>0&&this._buffers.splice(0,n),this._buffered-=t.length,t.func.call(this,i)},o.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:94,buffer:4,stream:108,util:131}],75:[function(t,e,n){"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}},{}],76:[function(t,e,n){"use strict";var r=[];!function(){for(var t=0;t<256;t++){for(var e=t,n=0;n<8;n++)1&e?e=3988292384^e>>>1:e>>>=1;r[t]=e}}();var i=e.exports=function(){this._crc=-1};i.prototype.write=function(t){for(var e=0;e<t.length;e++)this._crc=r[255&(this._crc^t[e])]^this._crc>>>8;return!0},i.prototype.crc32=function(){return-1^this._crc},i.crc32=function(t){for(var e=-1,n=0;n<t.length;n++)e=r[255&(e^t[n])]^e>>>8;return-1^e}},{}],77:[function(t,e,n){(function(n){"use strict";var r=t("./paeth-predictor");var i={0:function(t,e,n,r,i){t.copy(r,i,e,e+n)},1:function(t,e,n,r,i,a){for(var o=0;o<n;o++){var s=o>=a?t[e+o-a]:0,u=t[e+o]-s;r[i+o]=u}},2:function(t,e,n,r,i){for(var a=0;a<n;a++){var o=e>0?t[e+a-n]:0,s=t[e+a]-o;r[i+a]=s}},3:function(t,e,n,r,i,a){for(var o=0;o<n;o++){var s=o>=a?t[e+o-a]:0,u=e>0?t[e+o-n]:0,l=t[e+o]-(s+u>>1);r[i+o]=l}},4:function(t,e,n,i,a,o){for(var s=0;s<n;s++){var u=s>=o?t[e+s-o]:0,l=e>0?t[e+s-n]:0,c=e>0&&s>=o?t[e+s-(n+o)]:0,f=t[e+s]-r(u,l,c);i[a+s]=f}}},a={0:function(t,e,n){for(var r=0,i=e+n,a=e;a<i;a++)r+=Math.abs(t[a]);return r},1:function(t,e,n,r){for(var i=0,a=0;a<n;a++){var o=a>=r?t[e+a-r]:0,s=t[e+a]-o;i+=Math.abs(s)}return i},2:function(t,e,n){for(var r=0,i=e+n,a=e;a<i;a++){var o=e>0?t[a-n]:0,s=t[a]-o;r+=Math.abs(s)}return r},3:function(t,e,n,r){for(var i=0,a=0;a<n;a++){var o=a>=r?t[e+a-r]:0,s=e>0?t[e+a-n]:0,u=t[e+a]-(o+s>>1);i+=Math.abs(u)}return i},4:function(t,e,n,i){for(var a=0,o=0;o<n;o++){var s=o>=i?t[e+o-i]:0,u=e>0?t[e+o-n]:0,l=e>0&&o>=i?t[e+o-(n+i)]:0,c=t[e+o]-r(s,u,l);a+=Math.abs(c)}return a}};e.exports=function(t,e,r,o,s){var u;if("filterType"in o&&-1!==o.filterType){if("number"!=typeof o.filterType)throw new Error("unrecognised filter types");u=[o.filterType]}else u=[0,1,2,3,4];for(var l=e*s,c=0,f=0,h=new n((l+1)*r),p=u[0],d=0;d<r;d++){if(u.length>1)for(var g=1/0,v=0;v<u.length;v++){var m=a[u[v]](t,f,l,s);m<g&&(p=u[v],g=m)}h[c]=p,c++,i[p](t,f,l,h,c,s),c+=l,f+=l}return h}}).call(this,t("buffer").Buffer)},{"./paeth-predictor":86,buffer:4}],78:[function(t,e,n){(function(n){"use strict";var r=t("util"),i=t("./chunkstream"),a=t("./filter-parse"),o=e.exports=function(t){i.call(this);var e=[],r=this;this._filter=new a(t,{read:this.read.bind(this),write:function(t){e.push(t)},complete:function(){r.emit("complete",n.concat(e))}}),this._filter.start()};r.inherits(o,i)}).call(this,t("buffer").Buffer)},{"./chunkstream":74,"./filter-parse":80,buffer:4,util:131}],79:[function(t,e,n){(function(e){"use strict";var r=t("./sync-reader"),i=t("./filter-parse");n.process=function(t,n){var a=[],o=new r(t);return new i(n,{read:o.read.bind(o),write:function(t){a.push(t)},complete:function(){}}).start(),o.process(),e.concat(a)}}).call(this,t("buffer").Buffer)},{"./filter-parse":80,"./sync-reader":92,buffer:4}],80:[function(t,e,n){(function(n){"use strict";var r=t("./interlace"),i=t("./paeth-predictor");function a(t,e,n){var r=t*e;return 8!==n&&(r=Math.ceil(r/(8/n))),r}var o=e.exports=function(t,e){var n=t.width,i=t.height,o=t.interlace,s=t.bpp,u=t.depth;if(this.read=e.read,this.write=e.write,this.complete=e.complete,this._imageIndex=0,this._images=[],o)for(var l=r.getImagePasses(n,i),c=0;c<l.length;c++)this._images.push({byteWidth:a(l[c].width,s,u),height:l[c].height,lineIndex:0});else this._images.push({byteWidth:a(n,s,u),height:i,lineIndex:0});this._xComparison=8===u?s:16===u?2*s:1};o.prototype.start=function(){this.read(this._images[this._imageIndex].byteWidth+1,this._reverseFilterLine.bind(this))},o.prototype._unFilterType1=function(t,e,n){for(var r=this._xComparison,i=r-1,a=0;a<n;a++){var o=t[1+a],s=a>i?e[a-r]:0;e[a]=o+s}},o.prototype._unFilterType2=function(t,e,n){for(var r=this._lastLine,i=0;i<n;i++){var a=t[1+i],o=r?r[i]:0;e[i]=a+o}},o.prototype._unFilterType3=function(t,e,n){for(var r=this._xComparison,i=r-1,a=this._lastLine,o=0;o<n;o++){var s=t[1+o],u=a?a[o]:0,l=o>i?e[o-r]:0,c=Math.floor((l+u)/2);e[o]=s+c}},o.prototype._unFilterType4=function(t,e,n){for(var r=this._xComparison,a=r-1,o=this._lastLine,s=0;s<n;s++){var u=t[1+s],l=o?o[s]:0,c=s>a?e[s-r]:0,f=s>a&&o?o[s-r]:0,h=i(c,l,f);e[s]=u+h}},o.prototype._reverseFilterLine=function(t){var e,r=t[0],i=this._images[this._imageIndex],a=i.byteWidth;if(0===r)e=t.slice(1,a+1);else switch(e=new n(a),r){case 1:this._unFilterType1(t,e,a);break;case 2:this._unFilterType2(t,e,a);break;case 3:this._unFilterType3(t,e,a);break;case 4:this._unFilterType4(t,e,a);break;default:throw new Error("Unrecognised filter type - "+r)}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":82,"./paeth-predictor":86,buffer:4}],81:[function(t,e,n){(function(t){"use strict";e.exports=function(e,n){var r=n.depth,i=n.width,a=n.height,o=n.colorType,s=n.transColor,u=n.palette,l=e;return 3===o?function(t,e,n,r,i){for(var a=0,o=0;o<r;o++)for(var s=0;s<n;s++){var u=i[t[a]];if(!u)throw new Error("index "+t[a]+" not in palette");for(var l=0;l<4;l++)e[a+l]=u[l];a+=4}}(e,l,i,a,u):(s&&function(t,e,n,r,i){for(var a=0,o=0;o<r;o++)for(var s=0;s<n;s++){var u=!1;if(1===i.length?i[0]===t[a]&&(u=!0):i[0]===t[a]&&i[1]===t[a+1]&&i[2]===t[a+2]&&(u=!0),u)for(var l=0;l<4;l++)e[a+l]=0;a+=4}}(e,l,i,a,s),8!==r&&(16===r&&(l=new t(i*a*4)),function(t,e,n,r,i){for(var a=Math.pow(2,i)-1,o=0,s=0;s<r;s++)for(var u=0;u<n;u++){for(var l=0;l<4;l++)e[o+l]=Math.floor(255*t[o+l]/a+.5);o+=4}}(e,l,i,a,r))),l}}).call(this,t("buffer").Buffer)},{buffer:4}],82:[function(t,e,n){"use strict";var r=[{x:[0],y:[0]},{x:[4],y:[0]},{x:[0,4],y:[4]},{x:[2,6],y:[0,4]},{x:[0,2,4,6],y:[2,6]},{x:[1,3,5,7],y:[0,2,4,6]},{x:[0,1,2,3,4,5,6,7],y:[1,3,5,7]}];n.getImagePasses=function(t,e){for(var n=[],i=t%8,a=e%8,o=(t-i)/8,s=(e-a)/8,u=0;u<r.length;u++){for(var l=r[u],c=o*l.x.length,f=s*l.y.length,h=0;h<l.x.length&&l.x[h]<i;h++)c++;for(h=0;h<l.y.length&&l.y[h]<a;h++)f++;c>0&&f>0&&n.push({width:c,height:f,index:u})}return n},n.getInterlaceIterator=function(t){return function(e,n,i){var a=e%r[i].x.length,o=(e-a)/r[i].x.length*8+r[i].x[a],s=n%r[i].y.length;return 4*o+((n-s)/r[i].y.length*8+r[i].y[s])*t*4}}},{}],83:[function(t,e,n){(function(n){"use strict";var r=t("util"),i=t("stream"),a=t("./constants"),o=t("./packer"),s=e.exports=function(t){i.call(this);var e=t||{};this._packer=new o(e),this._deflate=this._packer.createDeflate(),this.readable=!0};r.inherits(s,i),s.prototype.pack=function(t,e,r,i){this.emit("data",new n(a.PNG_SIGNATURE)),this.emit("data",this._packer.packIHDR(e,r)),i&&this.emit("data",this._packer.packGAMA(i));var o=this._packer.filterData(t,e,r);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(o)}}).call(this,t("buffer").Buffer)},{"./constants":75,"./packer":85,buffer:4,stream:108,util:131}],84:[function(t,e,n){(function(n){"use strict";var r=!0,i=t("zlib");i.deflateSync||(r=!1);var a=t("./constants"),o=t("./packer");e.exports=function(t,e){if(!r)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 o(e||{}),u=[];u.push(new n(a.PNG_SIGNATURE)),u.push(s.packIHDR(t.width,t.height)),t.gamma&&u.push(s.packGAMA(t.gamma));var l=s.filterData(t.data,t.width,t.height),c=i.deflateSync(l,s.getDeflateOptions());if(l=null,!c||!c.length)throw new Error("bad png - invalid compressed data response");return u.push(s.packIDAT(c)),u.push(s.packIEND()),n.concat(u)}}).call(this,t("buffer").Buffer)},{"./constants":75,"./packer":85,buffer:4,zlib:38}],85:[function(t,e,n){(function(n){"use strict";var r=t("./constants"),i=t("./crc"),a=t("./bitpacker"),o=t("./filter-pack"),s=t("zlib"),u=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:r.COLORTYPE_COLOR_ALPHA,t.colorType!==r.COLORTYPE_COLOR&&t.colorType!==r.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")};u.prototype.getDeflateOptions=function(){return{chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy}},u.prototype.createDeflate=function(){return this._options.deflateFactory(this.getDeflateOptions())},u.prototype.filterData=function(t,e,n){var i=a(t,e,n,this._options),s=r.COLORTYPE_TO_BPP_MAP[this._options.colorType];return o(i,e,n,this._options,s)},u.prototype._packChunk=function(t,e){var r=e?e.length:0,a=new n(r+12);return a.writeUInt32BE(r,0),a.writeUInt32BE(t,4),e&&e.copy(a,8),a.writeInt32BE(i.crc32(a.slice(4,a.length-4)),a.length-4),a},u.prototype.packGAMA=function(t){var e=new n(4);return e.writeUInt32BE(Math.floor(t*r.GAMMA_DIVISION),0),this._packChunk(r.TYPE_gAMA,e)},u.prototype.packIHDR=function(t,e){var i=new n(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(r.TYPE_IHDR,i)},u.prototype.packIDAT=function(t){return this._packChunk(r.TYPE_IDAT,t)},u.prototype.packIEND=function(){return this._packChunk(r.TYPE_IEND,null)}}).call(this,t("buffer").Buffer)},{"./bitpacker":73,"./constants":75,"./crc":76,"./filter-pack":77,buffer:4,zlib:38}],86:[function(t,e,n){"use strict";e.exports=function(t,e,n){var r=t+e-n,i=Math.abs(r-t),a=Math.abs(r-e),o=Math.abs(r-n);return i<=a&&i<=o?t:a<=o?e:n}},{}],87:[function(t,e,n){"use strict";var r=t("util"),i=t("zlib"),a=t("./chunkstream"),o=t("./filter-parse-async"),s=t("./parser"),u=t("./bitmapper"),l=t("./format-normaliser"),c=e.exports=function(t){a.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()};r.inherits(c,a),c.prototype._handleError=function(t){this.emit("error",t),this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy&&this._inflate.destroy(),this.errord=!0},c.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)},c.prototype._handleMetaData=function(t){this.emit("metadata",t),this._bitmapInfo=Object.create(t),this._filter=new o(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=u.dataToBitMap(t,this._bitmapInfo),n=l(e,this._bitmapInfo);e=null}catch(t){return void this._handleError(t)}this.emit("parsed",n)}}},{"./bitmapper":72,"./chunkstream":74,"./filter-parse-async":78,"./format-normaliser":81,"./parser":89,util:131,zlib:38}],88:[function(t,e,n){(function(n){"use strict";var r=!0,i=t("zlib");i.deflateSync||(r=!1);var a=t("./sync-reader"),o=t("./filter-parse-sync"),s=t("./parser"),u=t("./bitmapper"),l=t("./format-normaliser");e.exports=function(t,e){if(!r)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 a(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 g=n.concat(p);p.length=0;var v=i.inflateSync(g);if(g=null,!v||!v.length)throw new Error("bad png - invalid inflate data response");var m=o.process(v,f);g=null;var _=u.dataToBitMap(m,f);m=null;var w=l(_,f);return f.data=w,f.gamma=h||0,f}}).call(this,t("buffer").Buffer)},{"./bitmapper":72,"./filter-parse-sync":79,"./format-normaliser":81,"./parser":89,"./sync-reader":92,buffer:4,zlib:38}],89:[function(t,e,n){(function(n){"use strict";var r=t("./constants"),i=t("./crc"),a=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[r.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[r.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[r.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[r.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[r.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[r.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};a.prototype.start=function(){this.read(r.PNG_SIGNATURE.length,this._parseSignature.bind(this))},a.prototype._parseSignature=function(t){for(var e=r.PNG_SIGNATURE,n=0;n<e.length;n++)if(t[n]!==e[n])return void this.error(new Error("Invalid file signature"));this.read(8,this._parseChunkBegin.bind(this))},a.prototype._parseChunkBegin=function(t){for(var e=t.readUInt32BE(0),a=t.readUInt32BE(4),o="",s=4;s<8;s++)o+=String.fromCharCode(t[s]);var u=Boolean(32&t[4]);if(this._hasIHDR||a===r.TYPE_IHDR){if(this._crc=new i,this._crc.write(new n(o)),this._chunks[a])return this._chunks[a](e);u?this.read(e+4,this._skipChunk.bind(this)):this.error(new Error("Unsupported critical chunk type "+o))}else this.error(new Error("Expected IHDR on beggining"))},a.prototype._skipChunk=function(){this.read(8,this._parseChunkBegin.bind(this))},a.prototype._handleChunkEnd=function(){this.read(4,this._parseChunkEnd.bind(this))},a.prototype._parseChunkEnd=function(t){var e=t.readInt32BE(0),n=this._crc.crc32();this._options.checkCRC&&n!==e?this.error(new Error("Crc error - "+e+" - "+n)):this._hasIEND||this.read(8,this._parseChunkBegin.bind(this))},a.prototype._handleIHDR=function(t){this.read(t,this._parseIHDR.bind(this))},a.prototype._parseIHDR=function(t){this._crc.write(t);var e=t.readUInt32BE(0),n=t.readUInt32BE(4),i=t[8],a=t[9],o=t[10],s=t[11],u=t[12];if(8===i||4===i||2===i||1===i||16===i)if(a in r.COLORTYPE_TO_BPP_MAP)if(0===o)if(0===s)if(0===u||1===u){this._colorType=a;var l=r.COLORTYPE_TO_BPP_MAP[this._colorType];this._hasIHDR=!0,this.metadata({width:e,height:n,depth:i,interlace:Boolean(u),palette:Boolean(a&r.COLORTYPE_PALETTE),color:Boolean(a&r.COLORTYPE_COLOR),alpha:Boolean(a&r.COLORTYPE_ALPHA),bpp:l,colorType:a}),this._handleChunkEnd()}else this.error(new Error("Unsupported interlace method"));else this.error(new Error("Unsupported filter method"));else this.error(new Error("Unsupported compression method"));else this.error(new Error("Unsupported color type"));else this.error(new Error("Unsupported bit depth "+i))},a.prototype._handlePLTE=function(t){this.read(t,this._parsePLTE.bind(this))},a.prototype._parsePLTE=function(t){this._crc.write(t);for(var e=Math.floor(t.length/3),n=0;n<e;n++)this._palette.push([t[3*n],t[3*n+1],t[3*n+2],255]);this.palette(this._palette),this._handleChunkEnd()},a.prototype._handleTRNS=function(t){this.read(t,this._parseTRNS.bind(this))},a.prototype._parseTRNS=function(t){if(this._crc.write(t),this._colorType===r.COLORTYPE_PALETTE_COLOR){if(0===this._palette.length)return void this.error(new Error("Transparency chunk must be after palette"));if(t.length>this._palette.length)return void this.error(new Error("More transparent colors than palette size"));for(var e=0;e<t.length;e++)this._palette[e][3]=t[e];this.palette(this._palette)}this._colorType===r.COLORTYPE_GRAYSCALE&&this.transColor([t.readUInt16BE(0)]),this._colorType===r.COLORTYPE_COLOR&&this.transColor([t.readUInt16BE(0),t.readUInt16BE(2),t.readUInt16BE(4)]),this._handleChunkEnd()},a.prototype._handleGAMA=function(t){this.read(t,this._parseGAMA.bind(this))},a.prototype._parseGAMA=function(t){this._crc.write(t),this.gamma(t.readUInt32BE(0)/r.GAMMA_DIVISION),this._handleChunkEnd()},a.prototype._handleIDAT=function(t){this.read(-t,this._parseIDAT.bind(this,t))},a.prototype._parseIDAT=function(t,e){if(this._crc.write(e),this._colorType===r.COLORTYPE_PALETTE_COLOR&&0===this._palette.length)throw new Error("Expected palette not found");this.inflateData(e);var n=t-e.length;n>0?this._handleIDAT(n):this._handleChunkEnd()},a.prototype._handleIEND=function(t){this.read(t,this._parseIEND.bind(this))},a.prototype._parseIEND=function(t){this._crc.write(t),this._hasIEND=!0,this._handleChunkEnd(),this.finished&&this.finished()}}).call(this,t("buffer").Buffer)},{"./constants":75,"./crc":76,buffer:4}],90:[function(t,e,n){"use strict";var r=t("./parser-sync"),i=t("./packer-sync");n.read=function(t,e){return r(t,e||{})},n.write=function(t){return i(t)}},{"./packer-sync":84,"./parser-sync":88}],91:[function(t,e,n){(function(e,r){"use strict";var i=t("util"),a=t("stream"),o=t("./parser-async"),s=t("./packer-async"),u=t("./png-sync"),l=n.PNG=function(t){a.call(this),t=t||{},this.width=t.width||0,this.height=t.height||0,this.data=this.width>0&&this.height>0?new r(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 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n,r;e&&(n=function(t){this.removeListener("error",r),this.data=t,e(null,this)}.bind(this),r=function(t){this.removeListener("parsed",n),e(t,null)}.bind(this),this.once("parsed",n),this.once("error",r));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.emit("metadata",t)},l.prototype._gamma=function(t){this.gamma=t},l.prototype._handleClose=function(){this._parser.writable||this._packer.readable||this.emit("close")},l.bitblt=function(t,e,n,r,i,a,o,s){if(n>t.width||r>t.height||n+i>t.width||r+a>t.height)throw new Error("bitblt reading outside image");if(o>e.width||s>e.height||o+i>e.width||s+a>e.height)throw new Error("bitblt writing outside image");for(var u=0;u<a;u++)t.data.copy(e.data,(s+u)*e.width+o<<2,(r+u)*t.width+n<<2,(r+u)*t.width+n+i<<2)},l.prototype.bitblt=function(t,e,n,r,i,a,o){return 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r=t._writableState,i=r.sync,a=r.writecb;if(function(t){t.writing=!1,t.writecb=null,t.length-=t.writelen,t.writelen=0}(r),e)!function(t,e,r,i,a){r?n.nextTick(function(){a(i)}):a(i);t._writableState.errorEmitted=!0,t.emit("error",i)}(t,0,i,e,a);else{var o=c(t,r);o||r.bufferProcessing||!r.buffer.length||function(t,e){e.bufferProcessing=!0;for(var n=0;n<e.buffer.length;n++){var r=e.buffer[n],i=r.chunk,a=r.encoding,o=r.callback,s=e.objectMode?1:i.length;if(u(t,e,s,i,a,o),e.writing){n++;break}}e.bufferProcessing=!1,n<e.buffer.length?e.buffer=e.buffer.slice(n):e.buffer.length=0}(t,r),i?n.nextTick(function(){l(t,r,o,a)}):l(t,r,o,a)}}(e,t)},this.writecb=null,this.writelen=0,this.buffer=[],this.errorEmitted=!1}function s(e){var n=t("./_stream_duplex");if(!(this instanceof s||this instanceof n))return new s(e);this._writableState=new o(e,this),this.writable=!0,a.call(this)}function u(t,e,n,r,i,a){e.writelen=n,e.writecb=a,e.writing=!0,e.sync=!0,t._write(r,i,e.onwrite),e.sync=!1}function 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i=t("stream");(n=e.exports=t("./lib/_stream_readable.js")).Stream=i,n.Readable=n,n.Writable=t("./lib/_stream_writable.js"),n.Duplex=t("./lib/_stream_duplex.js"),n.Transform=t("./lib/_stream_transform.js"),n.PassThrough=t("./lib/_stream_passthrough.js"),r.browser||"disable"!==r.env.READABLE_STREAM||(e.exports=t("stream"))}).call(this,t("_process"))},{"./lib/_stream_duplex.js":95,"./lib/_stream_passthrough.js":96,"./lib/_stream_readable.js":97,"./lib/_stream_transform.js":98,"./lib/_stream_writable.js":99,_process:94,stream:108}],103:[function(t,e,n){var r=t("buffer"),i=r.Buffer;function a(t,e){for(var n in t)e[n]=t[n]}function o(t,e,n){return i(t,e,n)}i.from&&i.alloc&&i.allocUnsafe&&i.allocUnsafeSlow?e.exports=r:(a(r,n),n.Buffer=o),a(i,o),o.from=function(t,e,n){if("number"==typeof t)throw new TypeError("Argument must not be a number");return i(t,e,n)},o.alloc=function(t,e,n){if("number"!=typeof t)throw new TypeError("Argument must be a number");var r=i(t);return void 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s,u=a[0];for(n=0;n<o;n++){for(r=0;r<t[n];r++){for((u=a.pop()).children[u.index]=e[i];u.index>0;)u=a.pop();for(u.index++,a.push(u);a.length<=n;)a.push(s={children:[],index:0}),u.children[u.index]=s.children,u=s;i++}n+1<o&&(a.push(s={children:[],index:0}),u.children[u.index]=s.children,u=s)}return a[0].children}function f(e,n,r,i,a,o,s,u,l){r.precision,r.samplesPerLine,r.scanLines;var c=r.mcusPerLine,f=r.progressive,h=(r.maxH,r.maxV,n),p=0,d=0;function g(){if(d>0)return p>>--d&1;if(255==(p=e[n++])){var t=e[n++];if(t)throw"unexpected marker: "+(p<<8|t).toString(16)}return d=7,p>>>7}function v(t){for(var e,n=t;null!==(e=g());){if("number"==typeof(n=n[e]))return n;if("object"!=typeof n)throw"invalid huffman sequence"}return null}function m(t){for(var e=0;t>0;){var n=g();if(null===n)return;e=e<<1|n,t--}return e}function _(t){var e=m(t);return e>=1<<t-1?e:e+(-1<<t)+1}var w=0;var b,y=0;function x(t,e,n,r,i){var a=n%c,o=(n/c|0)*t.v+r,s=a*t.h+i;e(t,t.blocks[o][s])}function k(t,e,n){var 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R,L,C,B,D=0;for(L=1==j?i[0].blocksPerLine*i[0].blocksPerColumn:c*r.mcusPerColumn,a||(a=L);D<L;){for(S=0;S<j;S++)i[S].pred=0;if(w=0,1==j)for(E=i[0],T=0;T<a;T++)k(E,I,D),D++;else for(T=0;T<a;T++){for(S=0;S<j;S++)for(C=(E=i[S]).h,B=E.v,A=0;A<B;A++)for(M=0;M<C;M++)x(E,I,D,A,M);if(++D===L)break}if(d=0,(R=e[n]<<8|e[n+1])<65280)throw"marker was not found";if(!(R>=65488&&R<=65495))break;n+=2}return n-h}function h(t,l){var c,f,h=[],p=l.blocksPerLine,d=l.blocksPerColumn,g=p<<3,v=new Int32Array(64),m=new Uint8Array(64);function _(t,c,f){var h,p,d,g,v,m,_,w,b,y,x=l.quantizationTable,k=f;for(y=0;y<64;y++)k[y]=t[y]*x[y];for(y=0;y<8;++y){var 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S=y;0!=k[8+S]||0!=k[16+S]||0!=k[24+S]||0!=k[32+S]||0!=k[40+S]||0!=k[48+S]||0!=k[56+S]?(h=s*k[0+S]+2048>>12,p=s*k[32+S]+2048>>12,d=k[16+S],g=k[48+S],v=u*(k[8+S]-k[56+S])+2048>>12,w=u*(k[8+S]+k[56+S])+2048>>12,m=k[24+S],_=k[40+S],b=h-p+1>>1,h=h+p+1>>1,p=b,b=d*o+g*a+2048>>12,d=d*a-g*o+2048>>12,g=b,b=v-_+1>>1,v=v+_+1>>1,_=b,b=w+m+1>>1,m=w-m+1>>1,w=b,b=h-g+1>>1,h=h+g+1>>1,g=b,b=p-d+1>>1,p=p+d+1>>1,d=b,b=v*i+w*r+2048>>12,v=v*r-w*i+2048>>12,w=b,b=m*n+_*e+2048>>12,m=m*e-_*n+2048>>12,_=b,k[0+S]=h+w,k[56+S]=h-w,k[8+S]=p+_,k[48+S]=p-_,k[16+S]=d+m,k[40+S]=d-m,k[24+S]=g+v,k[32+S]=g-v):(b=s*f[y+0]+8192>>14,k[0+S]=b,k[8+S]=b,k[16+S]=b,k[24+S]=b,k[32+S]=b,k[40+S]=b,k[48+S]=b,k[56+S]=b)}for(y=0;y<64;++y){var A=128+(k[y]+8>>4);c[y]=A<0?0:A>255?255:A}}for(var w=0;w<d;w++){var b=w<<3;for(c=0;c<8;c++)h.push(new Uint8Array(g));for(var y=0;y<p;y++){_(l.blocks[w][y],m,v);var x=0,k=y<<3;for(f=0;f<8;f++){var E=h[b+f];for(c=0;c<8;c++)E[k+c]=m[x++]}}}return h}function p(t){return t<0?0:t>255?255:t}return 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o,s,u=null,l=null,p=[],d=[],g=[],v=[],m=r();if(65496!=m)throw"SOI not found";for(m=r();65497!=m;){var _;switch(m){case 65280:break;case 65504:case 65505:case 65506:case 65507:case 65508:case 65509:case 65510:case 65511:case 65512:case 65513:case 65514:case 65515:case 65516:case 65517:case 65518:case 65519:case 65534:var w=i();65504===m&&74===w[0]&&70===w[1]&&73===w[2]&&70===w[3]&&0===w[4]&&(u={version:{major:w[5],minor:w[6]},densityUnits:w[7],xDensity:w[8]<<8|w[9],yDensity:w[10]<<8|w[11],thumbWidth:w[12],thumbHeight:w[13],thumbData:w.subarray(14,14+3*w[12]*w[13])}),65518===m&&65===w[0]&&100===w[1]&&111===w[2]&&98===w[3]&&101===w[4]&&0===w[5]&&(l={version:w[6],flags0:w[7]<<8|w[8],flags1:w[9]<<8|w[10],transformCode:w[11]});break;case 65499:for(var b=r()+n-2;n<b;){var y=e[n++],x=new Int32Array(64);if(y>>4==0)for(_=0;_<64;_++){x[t[_]]=e[n++]}else{if(y>>4!=1)throw"DQT: invalid table spec";for(_=0;_<64;_++){x[t[_]]=r()}}p[15&y]=x}break;case 65472:case 65473:case 65474:r(),(o={}).extended=65473===m,o.progressive=65474===m,o.precision=e[n++],o.scanLines=r(),o.samplesPerLine=r(),o.components={},o.componentsOrder=[];var k,E=e[n++];for(P=0;P<E;P++){k=e[n];var S=e[n+1]>>4,A=15&e[n+1],M=e[n+2];o.componentsOrder.push(k),o.components[k]={h:S,v:A,quantizationTable:p[M]},n+=3}a(o),d.push(o);break;case 65476:var T=r();for(P=2;P<T;){var I=e[n++],j=new Uint8Array(16),R=0;for(_=0;_<16;_++,n++)R+=j[_]=e[n];var L=new Uint8Array(R);for(_=0;_<R;_++,n++)L[_]=e[n];P+=17+R,(I>>4==0?v:g)[15&I]=c(j,L)}break;case 65501:r(),s=r();break;case 65498:r();var C=e[n++],B=[];for(P=0;P<C;P++){U=o.components[e[n++]];var D=e[n++];U.huffmanTableDC=v[D>>4],U.huffmanTableAC=g[15&D],B.push(U)}var z=e[n++],O=e[n++],F=e[n++],N=f(e,n,o,B,s,z,O,F>>4,15&F);n+=N;break;default:if(255==e[n-3]&&e[n-2]>=192&&e[n-2]<=254){n-=3;break}throw"unknown JPEG marker "+m.toString(16)}m=r()}if(1!=d.length)throw"only single frame JPEGs 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0!==this.colorTransform&&(k=!!this.colorTransform),n=this.components[0],r=this.components[1],i=this.components[2],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],s=r.lines[0|f*r.scaleY*S],u=i.lines[0|f*i.scaleY*S],c=0;c<t;c++)k?(h=o[0|c*n.scaleX*E],d=s[0|c*r.scaleX*E],b=p(h+1.402*((g=u[0|c*i.scaleX*E])-128)),y=p(h-.3441363*(d-128)-.71413636*(g-128)),x=p(h+1.772*(d-128))):(b=o[0|c*n.scaleX*E],y=s[0|c*r.scaleX*E],x=u[0|c*i.scaleX*E]),T[A++]=b,T[A++]=y,T[A++]=x;break;case 4:if(!this.adobe)throw"Unsupported color mode (4 components)";for(k=!1,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),n=this.components[0],r=this.components[1],i=this.components[2],a=this.components[3],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],s=r.lines[0|f*r.scaleY*S],u=i.lines[0|f*i.scaleY*S],l=a.lines[0|f*a.scaleY*S],c=0;c<t;c++)k?(h=o[0|c*n.scaleX*E],d=s[0|c*r.scaleX*E],g=u[0|c*i.scaleX*E],v=l[0|c*a.scaleX*E],m=255-p(h+1.402*(g-128)),_=255-p(h-.3441363*(d-128)-.71413636*(g-128)),w=255-p(h+1.772*(d-128))):(m=o[0|c*n.scaleX*E],_=s[0|c*r.scaleX*E],w=u[0|c*i.scaleX*E],v=l[0|c*a.scaleX*E]),T[A++]=m,T[A++]=_,T[A++]=w,T[A++]=v;break;default:throw"Unsupported color mode"}return T},copyToImageData:function(t){var e,n,r,i,a,o,s,u,l,c=t.width,f=t.height,h=t.data,d=this.getData(c,f),g=0,v=0;switch(this.components.length){case 1:for(n=0;n<f;n++)for(e=0;e<c;e++)r=d[g++],h[v++]=r,h[v++]=r,h[v++]=r,h[v++]=255;break;case 3:for(n=0;n<f;n++)for(e=0;e<c;e++)s=d[g++],u=d[g++],l=d[g++],h[v++]=s,h[v++]=u,h[v++]=l,h[v++]=255;break;case 4:for(n=0;n<f;n++)for(e=0;e<c;e++)a=d[g++],o=d[g++],r=d[g++],s=255-p(a*(1-(i=d[g++])/255)+i),u=255-p(o*(1-i/255)+i),l=255-p(r*(1-i/255)+i),h[v++]=s,h[v++]=u,h[v++]=l,h[v++]=255;break;default:throw"Unsupported color mode"}}},l}();e.exports=function(e){var r=new Uint8Array(e),i=new n;i.parse(r);for(var a=i.getData(i.width,i.height),o=new t(i.width*i.height*4),s=0,u=0;u<o.length;u++)o[u+(u/3|0)]=a[s++],u%4==3&&(o[u]=255);return{data:o,width:i.width,height:i.height}}}).call(this,t("buffer").Buffer)},{buffer:4}],106:[function(t,e,n){(function(t){function n(e){Math.round;var n,r,i,a,o,s=Math.floor,u=new Array(64),l=new Array(64),c=new Array(64),f=new Array(64),h=new Array(65535),p=new Array(65535),d=new Array(64),g=new Array(64),v=[],m=0,_=7,w=new Array(64),b=new Array(64),y=new Array(64),x=new Array(256),k=new Array(2048),E=[0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18,24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63],S=[0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0],A=[0,1,2,3,4,5,6,7,8,9,10,11],M=[0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,125],T=[1,2,3,0,4,17,5,18,33,49,65,6,19,81,97,7,34,113,20,50,129,145,161,8,35,66,177,193,21,82,209,240,36,51,98,114,130,9,10,22,23,24,25,26,37,38,39,40,41,42,52,53,54,55,56,57,58,67,68,69,70,71,72,73,74,83,84,85,86,87,88,89,90,99,100,101,102,103,104,105,106,115,116,117,118,119,120,121,122,131,132,133,134,135,136,137,138,146,147,148,149,150,151,152,153,154,162,163,164,165,166,167,168,169,170,178,179,180,181,182,183,184,185,186,194,195,196,197,198,199,200,201,202,210,211,212,213,214,215,216,217,218,225,226,227,228,229,230,231,232,233,234,241,242,243,244,245,246,247,248,249,250],I=[0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0],j=[0,1,2,3,4,5,6,7,8,9,10,11],R=[0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,119],L=[0,1,2,3,17,4,5,33,49,6,18,65,81,7,97,113,19,34,50,129,8,20,66,145,161,177,193,9,35,51,82,240,21,98,114,209,10,22,36,52,225,37,241,23,24,25,26,38,39,40,41,42,53,54,55,56,57,58,67,68,69,70,71,72,73,74,83,84,85,86,87,88,89,90,99,100,101,102,103,104,105,106,115,116,117,118,119,120,121,122,130,131,132,133,134,135,136,137,138,146,147,148,149,150,151,152,153,154,162,163,164,165,166,167,168,169,170,178,179,180,181,182,183,184,185,186,194,195,196,197,198,199,200,201,202,210,211,212,213,214,215,216,217,218,226,227,228,229,230,231,232,233,234,242,243,244,245,246,247,248,249,250];function C(t,e){for(var n=0,r=0,i=new Array,a=1;a<=16;a++){for(var o=1;o<=t[a];o++)i[e[r]]=[],i[e[r]][0]=n,i[e[r]][1]=a,r++,n++;n*=2}return i}function B(t){for(var e=t[0],n=t[1]-1;n>=0;)e&1<<n&&(m|=1<<_),n--,--_<0&&(255==m?(D(255),D(0)):D(m),_=7,m=0)}function D(t){v.push(t)}function z(t){D(t>>8&255),D(255&t)}function O(t,e,n,r,i){var a,o=i[0],s=i[240];for(var u=function(t,e){var n,r,i,a,o,s,u,l,c,f,h=0;for(c=0;c<8;++c){n=t[h],r=t[h+1],i=t[h+2],a=t[h+3],o=t[h+4],s=t[h+5],u=t[h+6];var p=n+(l=t[h+7]),g=n-l,v=r+u,m=r-u,_=i+s,w=i-s,b=a+o,y=a-o,x=p+b,k=p-b,E=v+_,S=v-_;t[h]=x+E,t[h+4]=x-E;var A=.707106781*(S+k);t[h+2]=k+A,t[h+6]=k-A;var M=.382683433*((x=y+w)-(S=m+g)),T=.5411961*x+M,I=1.306562965*S+M,j=.707106781*(E=w+m),R=g+j,L=g-j;t[h+5]=L+T,t[h+3]=L-T,t[h+1]=R+I,t[h+7]=R-I,h+=8}for(h=0,c=0;c<8;++c){n=t[h],r=t[h+8],i=t[h+16],a=t[h+24],o=t[h+32],s=t[h+40],u=t[h+48];var C=n+(l=t[h+56]),B=n-l,D=r+u,z=r-u,O=i+s,F=i-s,N=a+o,P=a-o,U=C+N,q=C-N,V=D+O,Z=D-O;t[h]=U+V,t[h+32]=U-V;var W=.707106781*(Z+q);t[h+16]=q+W,t[h+48]=q-W;var G=.382683433*((U=P+F)-(Z=z+B)),H=.5411961*U+G,Y=1.306562965*Z+G,X=.707106781*(V=F+z),$=B+X,K=B-X;t[h+40]=K+H,t[h+24]=K-H,t[h+8]=$+Y,t[h+56]=$-Y,h++}for(c=0;c<64;++c)f=t[c]*e[c],d[c]=f>0?f+.5|0:f-.5|0;return d}(t,e),l=0;l<64;++l)g[E[l]]=u[l];var c=g[0]-n;n=g[0],0==c?B(r[0]):(B(r[p[a=32767+c]]),B(h[a]));for(var f=63;f>0&&0==g[f];f--);if(0==f)return B(o),n;for(var v,m=1;m<=f;){for(var _=m;0==g[m]&&m<=f;++m);var w=m-_;if(w>=16){v=w>>4;for(var b=1;b<=v;++b)B(s);w&=15}a=32767+g[m],B(i[(w<<4)+p[a]]),B(h[a]),m++}return 63!=f&&B(o),n}function F(t){if(t<=0&&(t=1),t>100&&(t=100),o!=t){(function(t){for(var e=[16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22,37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99],n=0;n<64;n++){var r=s((e[n]*t+50)/100);r<1?r=1:r>255&&(r=255),u[E[n]]=r}for(var i=[17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99],a=0;a<64;a++){var o=s((i[a]*t+50)/100);o<1?o=1:o>255&&(o=255),l[E[a]]=o}for(var h=[1,1.387039845,1.306562965,1.175875602,1,.785694958,.5411961,.275899379],p=0,d=0;d<8;d++)for(var g=0;g<8;g++)c[p]=1/(u[E[p]]*h[d]*h[g]*8),f[p]=1/(l[E[p]]*h[d]*h[g]*8),p++})(t<50?Math.floor(5e3/t):Math.floor(200-2*t)),o=t}}this.encode=function(e,o){(new Date).getTime();o&&F(o),v=new Array,m=0,_=7,z(65496),z(65504),z(16),D(74),D(70),D(73),D(70),D(0),D(1),D(1),D(0),z(1),z(1),D(0),D(0),function(){z(65499),z(132),D(0);for(var t=0;t<64;t++)D(u[t]);D(1);for(var e=0;e<64;e++)D(l[e])}(),function(t,e){z(65472),z(17),D(8),z(e),z(t),D(3),D(1),D(17),D(0),D(2),D(17),D(1),D(3),D(17),D(1)}(e.width,e.height),function(){z(65476),z(418),D(0);for(var t=0;t<16;t++)D(S[t+1]);for(var e=0;e<=11;e++)D(A[e]);D(16);for(var n=0;n<16;n++)D(M[n+1]);for(var r=0;r<=161;r++)D(T[r]);D(1);for(var i=0;i<16;i++)D(I[i+1]);for(var a=0;a<=11;a++)D(j[a]);D(17);for(var o=0;o<16;o++)D(R[o+1]);for(var s=0;s<=161;s++)D(L[s])}(),z(65498),z(12),D(3),D(1),D(0),D(2),D(17),D(3),D(17),D(0),D(63),D(0);var s=0,h=0,p=0;m=0,_=7,this.encode.displayName="_encode_";for(var d,g,x,E,C,N,P,U,q,V=e.data,Z=e.width,W=e.height,G=4*Z,H=0;H<W;){for(d=0;d<G;){for(N=C=G*H+d,P=-1,U=0,q=0;q<64;q++)N=C+(U=q>>3)*G+(P=4*(7&q)),H+U>=W&&(N-=G*(H+1+U-W)),d+P>=G&&(N-=d+P-G+4),g=V[N++],x=V[N++],E=V[N++],w[q]=(k[g]+k[x+256>>0]+k[E+512>>0]>>16)-128,b[q]=(k[g+768>>0]+k[x+1024>>0]+k[E+1280>>0]>>16)-128,y[q]=(k[g+1280>>0]+k[x+1536>>0]+k[E+1792>>0]>>16)-128;s=O(w,c,s,n,i),h=O(b,f,h,r,a),p=O(y,f,p,r,a),d+=32}H+=8}if(_>=0){var Y=[];Y[1]=_+1,Y[0]=(1<<_+1)-1,B(Y)}return z(65497),new t(v)},function(){(new Date).getTime();e||(e=50),function(){for(var t=String.fromCharCode,e=0;e<256;e++)x[e]=t(e)}(),n=C(S,A),r=C(I,j),i=C(M,T),a=C(R,L),function(){for(var t=1,e=2,n=1;n<=15;n++){for(var r=t;r<e;r++)p[32767+r]=n,h[32767+r]=[],h[32767+r][1]=n,h[32767+r][0]=r;for(var i=-(e-1);i<=-t;i++)p[32767+i]=n,h[32767+i]=[],h[32767+i][1]=n,h[32767+i][0]=e-1+i;t<<=1,e<<=1}}(),function(){for(var t=0;t<256;t++)k[t]=19595*t,k[t+256>>0]=38470*t,k[t+512>>0]=7471*t+32768,k[t+768>>0]=-11059*t,k[t+1024>>0]=-21709*t,k[t+1280>>0]=32768*t+8421375,k[t+1536>>0]=-27439*t,k[t+1792>>0]=-5329*t}(),F(e),(new Date).getTime()}()}e.exports=function(t,e){void 0===e&&(e=50);return{data:new n(e).encode(t,e),width:t.width,height:t.height}}}).call(this,t("buffer").Buffer)},{buffer:4}],107:[function(t,e,n){(function(n){"use strict";var r=t("contentstream"),i=t("gif-encoder"),a=t("jpeg-js"),o=t("pngjs-nozlib").PNG,s=t("ndarray"),u=t("ndarray-ops"),l=t("through");function c(t,e,n){if(4===t.shape.length)return c(t.pick(n),e,0);if(3===t.shape.length)if(3===t.shape[2])u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),t),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255);else if(4===t.shape[2])u.assign(s(e,[t.shape[0],t.shape[1],4],[4,4*t.shape[0],1]),t);else{if(1!==t.shape[2])return new Error("Incompatible array shape");u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),s(t.data,[t.shape[0],t.shape[1],3],[t.stride[0],t.stride[1],0],t.offset)),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255)}else{if(2!==t.shape.length)return new Error("Incompatible array shape");u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),s(t.data,[t.shape[0],t.shape[1],3],[t.stride[0],t.stride[1],0],t.offset)),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255)}return e}function f(t){var e=l();return e.emit("error",t),e}e.exports=function(t,e,s){switch(s=s||{},e.toUpperCase()){case"JPG":case".JPG":case"JPEG":case".JPEG":case"JPE":case".JPE":var u=t.shape[0],l=t.shape[1],h={data:g=c(t,g=new n(u*l*4)),width:u,height:l},p=a.encode(h,s.quality);return new r(p.data);case"GIF":case".GIF":var d=4===t.shape.length?t.shape[0]:1,g=(u=4===t.shape.length?t.shape[1]:t.shape[0],l=4===t.shape.length?t.shape[2]:t.shape[1],new n(u*l*4)),v=new i(u,l);v.writeHeader();for(var m=0;m<d;m++)g=c(t,g,m),v.addFrame(g);return v.finish(),v;case"PNG":case".PNG":var _=new o({width:t.shape[0],height:t.shape[1]});return"Error"==typeof(g=c(t,_.data))?f(g):(_.data=g,_.pack());case"CANVAS":var w=document.createElement("canvas"),b=w.getContext("2d");w.width=t.shape[0],w.height=t.shape[1];var y=b.getImageData(0,0,w.width,w.height);return"Error"==typeof(g=c(t,g=y.data))?f(g):(b.putImageData(y,0,0),w);default:return f(new Error("Unsupported file type: "+e))}}}).call(this,t("buffer").Buffer)},{buffer:4,contentstream:7,"gif-encoder":25,"jpeg-js":104,ndarray:67,"ndarray-ops":64,"pngjs-nozlib":91,through:123}],108:[function(t,e,n){e.exports=i;var r=t("events").EventEmitter;function i(){r.call(this)}t("inherits")(i,r),i.Readable=t("readable-stream/readable.js"),i.Writable=t("readable-stream/writable.js"),i.Duplex=t("readable-stream/duplex.js"),i.Transform=t("readable-stream/transform.js"),i.PassThrough=t("readable-stream/passthrough.js"),i.Stream=i,i.prototype.pipe=function(t,e){var n=this;function i(e){t.writable&&!1===t.write(e)&&n.pause&&n.pause()}function a(){n.readable&&n.resume&&n.resume()}n.on("data",i),t.on("drain",a),t._isStdio||e&&!1===e.end||(n.on("end",s),n.on("close",u));var o=!1;function s(){o||(o=!0,t.end())}function u(){o||(o=!0,"function"==typeof t.destroy&&t.destroy())}function l(t){if(c(),0===r.listenerCount(this,"error"))throw t}function c(){n.removeListener("data",i),t.removeListener("drain",a),n.removeListener("end",s),n.removeListener("close",u),n.removeListener("error",l),t.removeListener("error",l),n.removeListener("end",c),n.removeListener("close",c),t.removeListener("close",c)}return n.on("error",l),t.on("error",l),n.on("end",c),n.on("close",c),t.on("close",c),t.emit("pipe",n),t}},{events:40,inherits:53,"readable-stream/duplex.js":109,"readable-stream/passthrough.js":118,"readable-stream/readable.js":119,"readable-stream/transform.js":120,"readable-stream/writable.js":121}],109:[function(t,e,n){e.exports=t("./lib/_stream_duplex.js")},{"./lib/_stream_duplex.js":110}],110:[function(t,e,n){"use strict";var r=t("process-nextick-args"),i=Object.keys||function(t){var e=[];for(var n in t)e.push(n);return e};e.exports=f;var a=t("core-util-is");a.inherits=t("inherits");var o=t("./_stream_readable"),s=t("./_stream_writable");a.inherits(f,o);for(var u=i(s.prototype),l=0;l<u.length;l++){var c=u[l];f.prototype[c]||(f.prototype[c]=s.prototype[c])}function f(t){if(!(this instanceof f))return new 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o=t.events,s=t.modules[r][0](a,o);t.images[e].steps.splice(n,0,s)}(e,n,r,i)}},{}],137:[function(t,e,n){e.exports={channel:[t("./modules/Channel/Module"),t("./modules/Channel/info")],brightness:[t("./modules/Brightness/Module"),t("./modules/Brightness/info")],"edge-detect":[t("./modules/EdgeDetect/Module"),t("./modules/EdgeDetect/info")],ndvi:[t("./modules/Ndvi/Module"),t("./modules/Ndvi/info")],invert:[t("./modules/Invert/Module"),t("./modules/Invert/info")],crop:[t("./modules/Crop/Module"),t("./modules/Crop/info")],colormap:[t("./modules/Colormap/Module"),t("./modules/Colormap/info")],"decode-qr":[t("./modules/DecodeQr/Module"),t("./modules/DecodeQr/info")],"fisheye-gl":[t("./modules/FisheyeGl/Module"),t("./modules/FisheyeGl/info")],dynamic:[t("./modules/Dynamic/Module"),t("./modules/Dynamic/info")],blur:[t("./modules/Blur/Module"),t("./modules/Blur/info")],saturation:[t("./modules/Saturation/Module"),t("./modules/Saturation/info")],average:[t("./modules/Average/Module"),t("./modules/Average/info")]}},{"./modules/Average/Module":140,"./modules/Average/info":141,"./modules/Blur/Module":143,"./modules/Blur/info":144,"./modules/Brightness/Module":145,"./modules/Brightness/info":146,"./modules/Channel/Module":147,"./modules/Channel/info":148,"./modules/Colormap/Module":150,"./modules/Colormap/info":151,"./modules/Crop/Module":153,"./modules/Crop/info":155,"./modules/DecodeQr/Module":156,"./modules/DecodeQr/info":157,"./modules/Dynamic/Module":158,"./modules/Dynamic/info":159,"./modules/EdgeDetect/Module":161,"./modules/EdgeDetect/info":162,"./modules/FisheyeGl/Module":163,"./modules/FisheyeGl/info":164,"./modules/Invert/Module":165,"./modules/Invert/info":166,"./modules/Ndvi/Module":167,"./modules/Ndvi/info":168,"./modules/Saturation/Module":169,"./modules/Saturation/info":170}],138:[function(t,e,n){e.exports=function(t,e,n,r){if(!t.options.inBrowser)return!1;var i=ImageSequencer({ui:!1});if(window.hasOwnProperty("$"))var a=$(e);else a=document.querySelectorAll(e);for(var o=[],s=0;s<a.length;s++)a[s]instanceof HTMLImageElement&&o.push(a[s]);function u(t,e){var n=t.src,r=n.split("?")[0].split(".").pop(),a=new XMLHttpRequest;function o(n){i.loadImage(n,function(){this.addSteps(e).run({stop:function(){}},function(e){t.src=e})})}a.open("GET",n,!0),a.responseType="arraybuffer",a.onload=function(t){var e,n,i,a=new Uint8Array(this.response),s="";for(e=0,n=a.length;e<n;e+=5e3)i=a.subarray(e,e+5e3),s+=String.fromCharCode.apply(null,i);var u=btoa(s);o("data:image/"+r+";base64,"+u)},"data:image/"!=n.substr(0,11).toLowerCase()?a.send():o(n)}for(s=0;s<o.length;s++)u(o[s],n),s==o.length-1&&r.callback()}},{}],139:[function(t,e,n){e.exports=function(t,e,n,r){function i(e,a){if(a==e.length&&void 0!==e[a-1]){var o=e[a-1].image;if("Function"==t.objTypeOf(n)){var s=t.images[o].steps,u=s[s.length-1].output.src;return n(u),!0}}if(void 0!==e[a]){o=e[a].image;var l=e[a].i,c=t.images[o].steps[l-1].output;!function(e,n,r){var i=[];for(let e in t.images[r].steps){if(e>=n)break;i.push(t.images[r].steps[e])}e.history=t.copy(i),e.getStep=function(t){return this.history.slice(t)[0]},e.getStepOutput=function(t){return this.getStep(t).output}}(c,l,o),t.images[o].steps[l].draw(t.copy(c),function(){i(e,++a)},r)}}return r||(r={stop:function(){}}),function(e){var n=[];for(var r in e)for(var a=t.images[r].steps.length,o=e[r],s=0;s<a-o;s++)n.push({image:r,i:o+s});i(n,0)}(e=function(e){for(var n in e)0==e[n]&&1==t.images[n].steps.length?delete e[n]:0==e[n]&&e[n]++;for(var n in e)for(var r=t.images[n].steps[e[n]-1];void 0===r||void 0===r.output;)r=t.images[n].steps[--e[n]-1];return e}(e))}},{}],140:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,n.onSetup(e.step),e.step.metadata=e.step.metadata||{},{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[t,e,n,r]},extraManipulation:function(t){for(var n=[0,0,0,0],r=0;r<t.data.length;r+=4)n[0]+=t.data[r+0],n[1]+=t.data[r+1],n[2]+=t.data[r+2],n[3]+=t.data[r+3];for(n[0]=parseInt(n[0]/(t.data.length/4)),n[1]=parseInt(n[1]/(t.data.length/4)),n[2]=parseInt(n[2]/(t.data.length/4)),n[3]=parseInt(n[3]/(t.data.length/4)),r=0;r<t.data.length;r+=4)t.data[r+0]=n[0],t.data[r+1]=n[1],t.data[r+2]=n[2],t.data[r+3]=n[3];return e.step.metadata.averages=n,console.log("average: ",n),e.step.inBrowser&&e.step.ui&&$(e.step.ui).find(".details").append("<p><b>Averages</b> (r, g, b, a): "+n.join(", ")+"</p>"),t},format:r.format,image:e.image,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],141:[function(t,e,n){e.exports={name:"Average",description:"Average all pixel color",inputs:{}}},{}],142:[function(t,e,n){e.exports=function(t,e){let n=[[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=function(t){let e=[];for(let n=t.length-1;n>=0;n--){let r=[];for(let e=t[n].length-1;e>=0;e--)r.push(t[n][e]);e.push(r)}return e}(n);var r=t;for(let e=0;e<t.shape[0];e++)for(let a=0;a<t.shape[1];a++){let o=i([e,a]),s=[0,0,0,0];for(let t=0;t<n.length;t++)for(let e=0;e<n.length;e++)s[0]+=r.get(o[t][e][0],o[t][e][1],0)*n[t][e],s[1]+=r.get(o[t][e][0],o[t][e][1],1)*n[t][e],s[2]+=r.get(o[t][e][0],o[t][e][1],2)*n[t][e],s[3]+=r.get(o[t][e][0],o[t][e][1],3)*n[t][e];t.set(e,a,0,s[0]),t.set(e,a,1,s[1]),t.set(e,a,2,s[2])}return t;function i(t){let e=t[0],n=t[1],r=[];for(let t=-2;t<=2;t++){let i=[];for(let r=-2;r<=2;r++)i.push([e+t,n+r]);r.push(i)}return r}}},{}],143:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[t,e,n,r]},extraManipulation:function(n){return n=t("./Blur")(n,e.blur)},format:r.format,image:e.image,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171,"./Blur":142}],144:[function(t,e,n){e.exports={name:"Blur",description:"Gaussian blur an image by a given value, typically 0-5",inputs:{blur:{type:"integer",desc:"amount of gaussian blur(Less blur gives more detail, typically 0-5)",default:2}}}},{}],145:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){var a=e.brightness/100;return[t=a*t<255?a*t:255,n=a*n<255?a*n:255,r=a*r<255?a*r:255,i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],146:[function(t,e,n){e.exports={name:"Brightness",description:"Change the brightness of the image by given percent value",inputs:{brightness:{type:"integer",desc:"% brightness for the new image",default:0}}}},{}],147:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).channel=e.channel||"green",n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){return"red"==e.channel?[t,0,0,i]:"green"==e.channel?[0,n,0,i]:"blue"==e.channel?[0,0,r,i]:void 0},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],148:[function(t,e,n){e.exports={name:"Channel",description:"Displays only one color channel of an image -- default is green",inputs:{channel:{type:"select",desc:"Color channel",default:"green",values:["red","green","blue"]}}}},{}],149:[function(t,e,n){function r(t){return function(e){var n,r,i,a,o,s,u,l,c,f,h,p,d,g;if(s=(h=[0,0])[0],u=h[1],a=(p=[t[0][0],1])[1],e<(i=p[0]))return s;for(n=l=0,f=t.length;l<f;n=++l){if(o=(d=t[n])[0],s=d[1],u=d[2],i=o,n===t.length-1){a=1;break}if(a=t[n+1][0],o<=e&&e<a)break}for(r=[],n=c=0,g=s.length;0<=g?c<g:c>g;n=0<=g?++c:--c)r[n]=(e-i)/(a-i)*(u[n]-s[n])+s[n];return r}}e.exports=function(t,e){return e.colormap=e.colormap||i.default,"object"==typeof e.colormap?colormapFunction=r(e.colormap):i.hasOwnProperty(e.colormap)?colormapFunction=i[e.colormap]:colormapFunction=i.default,colormapFunction(t/255)};var i={greyscale:r([[0,[0,0,0],[255,255,255]],[1,[255,255,255],[255,255,255]]]),default:r([[0,[0,0,255],[0,255,0]],[.25,[0,255,0],[255,255,0]],[.5,[0,255,255],[255,255,0]],[.75,[255,255,0],[255,0,0]]]),ndvi:r([[0,[0,0,255],[38,195,195]],[.5,[0,150,0],[255,255,0]],[.75,[255,255,0],[255,50,50]]]),stretched:r([[0,[0,0,255],[0,0,255]],[.1,[0,0,255],[38,195,195]],[.5,[0,150,0],[255,255,0]],[.7,[255,255,0],[255,50,50]],[.9,[255,50,50],[255,50,50]]]),fastie:r([[0,[255,255,255],[0,0,0]],[.167,[0,0,0],[255,255,255]],[.33,[255,255,255],[0,0,0]],[.5,[0,0,0],[140,140,255]],[.55,[140,140,255],[0,255,0]],[.63,[0,255,0],[255,255,0]],[.75,[255,255,0],[255,0,0]],[.95,[255,0,0],[255,0,255]]])}},{}],150:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(n,r,i,a){var o=(n+r+i)/3,s=t("./Colormap")(o,e);return[s[0],s[1],s[2],255]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171,"./Colormap":149}],151:[function(t,e,n){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","stretched","fastie"]}}}},{}],152:[function(t,e,n){(function(n){e.exports=function(e,r,i){var a=t("get-pixels"),o=t("save-pixels");r.x=parseInt(r.x)||0,r.y=parseInt(r.y)||0,a(e.src,function(t,a){r.w=parseInt(r.w)||Math.floor(.5*a.shape[0]),r.h=parseInt(r.h)||Math.floor(.5*a.shape[1]);for(var s=r.x,u=r.y,l=r.w,c=r.h,f=a.shape[0],h=new Uint8Array(4*l*c),p=u;p<u+c;p++)h.set(a.data.slice(4*p*f+s,4*p*f+s+4*l),4*l*(p-u));a.data=h,a.shape=[l,c,4],a.stride[1]=4*l,r.format=e.format;var d=[],g=0,v=o(a,r.format);v.on("data",function(t){g+=t.length,d.push(t)}),v.on("end",function(){var t=n.concat(d,g).toString("base64"),e="data:image/"+r.format+";base64,"+t;i(e,r.format)})})}}).call(this,t("buffer").Buffer)},{buffer:4,"get-pixels":23,"save-pixels":107}],153:[function(t,e,n){e.exports=function(e,n){if(e=e||{},n.onSetup(e.step),e.step.inBrowser)var r=t("./Ui.js")(e.step,n);var i=!1;return{options:e,draw:function(a,o){n.onDraw(e.step);var s=this;e.step.input=a.src,t("./Crop")(a,e,function(t,a){s.output={src:t,format:a},e.step.output=t,n.onComplete(e.step),r&&r.hide&&r.hide(),!1===i&&e.step.inBrowser&&(i=!0,r.setup()),o()})},output:void 0,UI:n}}},{"./Crop":152,"./Ui.js":154}],154:[function(t,e,n){e.exports=function(t,e){let n=0,r=0;function i(){return t.imgElement}function a(t,e,n,r){let a=$($(i()).parents()[2]).find("input");a[0].value=t,a[1].value=e,a[2].value=n,a[3].value=r}return{setup:function(){t.imgElement.src=t.input,n=Math.floor(i().naturalWidth),r=Math.floor(i().naturalHeight),a(0,0,n,r),$(i()).imgAreaSelect({handles:!0,x1:0,y1:0,x2:0+n/2,y2:0+r/2,onSelectEnd:function(t,e){let o=function(t,e,a,o){let s=$(i()).width(),u=$(i()).height();return[Math.floor(t/s*n),Math.floor(e/u*r),Math.floor(a/s*n),Math.floor(o/u*r)]}(e.x1,e.y1,e.width,e.height);a(o[0],o[1],o[2],o[3])}})},remove:function(){$(i()).imgAreaSelect({remove:!0})},hide:function(){$(i()).imgAreaSelect({hide:!0})}}}},{}],155:[function(t,e,n){e.exports={name:"Crop",description:"Crop image to given x, y, w, h in pixels, measured from top left",url:"https://github.com/publiclab/image-sequencer/tree/master/MODULES.md",inputs:{x:{type:"integer",desc:"X-position (measured from left) from where cropping starts",default:0},y:{type:"integer",desc:"Y-position (measured from top) from where cropping starts",default:0},w:{type:"integer",desc:"Width of crop",default:"(50%)"},h:{type:"integer",desc:"Height of crop",default:"(50%)"}}}},{}],156:[function(t,e,n){e.exports=function(e,n){e=e||{},n.onSetup(e.step);var r=t("jsqr"),i=t("get-pixels");return{options:e,draw:function(t,a){n.onDraw(e.step);var o=this;i(t.src,function(i,s){if(i)throw i;var u=s.shape[0],l=s.shape[1],c=r.decodeQRFromImage(s.data,u,l);o.output=t,o.output.data=c,a(),e.step.output=t.src,e.step.qrval=c,n.onComplete(e.step)})},output:void 0,UI:n}}},{"get-pixels":23,jsqr:57}],157:[function(t,e,n){e.exports={name:"Decode QR",description:"Search for and decode a QR code in the image",inputs:{},outputs:{qrval:{type:"text"}}}},{}],158:[function(require,module,exports){module.exports=function Dynamic(options,UI){var output;function draw(input,callback,progressObj){progressObj.stop(!0),progressObj.overrideFlag=!0,UI.onDraw(options.step);var step=this;function generator(expression){var func="f = function (r, g, b, a) { var R = r, G = g, B = b, A = a;",f;return func+="return ",func=func+expression+"}",eval(func),f}options.monochrome=options.monochrome||"(R+G+B)/3";var channels=["red","green","blue","alpha"];function changePixel(t,e,n,r){return[options.red_function(t,e,n,r),options.green_function(t,e,n,r),options.blue_function(t,e,n,r),options.alpha_function(t,e,n,r)]}function getNeighbourPixel(t,e,n,r,i){return[t.get(e+r,n+i,0),t.get(e+r,n+i,1),t.get(e+r,n+i,2),t.get(e+r,n+i,3)]}function output(t,e,n){step.output={src:e,format:n},options.step.output=e,UI.onComplete(options.step)}return channels.forEach(function(t){options.hasOwnProperty(t)?options[t+"_function"]=generator(options[t]):"alpha"===t?options.alpha_function=function(){return 255}:options[t+"_function"]=generator(options.monochrome)}),require("../_nomodule/PixelManipulation.js")(input,{output:output,changePixel:changePixel,getNeighbourPixel:getNeighbourPixel,getNeighborPixel:getNeighbourPixel,format:input.format,image:options.image,inBrowser:options.inBrowser,callback:callback})}return options=options||{},UI.onSetup(options.step),{options:options,draw:draw,output:output,UI:UI}}},{"../_nomodule/PixelManipulation.js":171}],159:[function(t,e,n){e.exports={name:"Dynamic",description:"A module which accepts JavaScript math expressions to produce each color channel based on the original image's color. See <a href='https://publiclab.org/wiki/infragram-sandbox'>Infragrammar</a>.",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"}}}},{}],160:[function(t,e,n){const r=t("lodash"),i=[[-1,0,1],[-2,0,2],[-1,0,1]],a=[[-1,-2,-1],[0,0,0],[1,2,1]];let o,s=[],u=[],l=[],c=[];function f(t,e,n,r,o){let s=0;for(let e=0;e<3;e++)for(let n=0;n<3;n++){let a=r+e-1,u=o+n-1;s+=t.get(a,u,0)*i[e][n]}let u=0;for(let e=0;e<3;e++)for(let n=0;n<3;n++){let i=r+e-1,s=o+n-1;u+=t.get(i,s,0)*a[e][n]}return{pixel:[e,e,e,Math.sqrt(Math.pow(s,2)+Math.pow(u,2))],angle:Math.atan2(u,s)}}e.exports=function(t,e,n,i){o=!i;for(var a=0;a<t.shape[0];a++){s.push([]),u.push([]);for(var d=0;d<t.shape[1];d++){var g=f(t,t.get(a,d,0),t.get(a,d,3),a,d);let e=g.pixel;t.set(a,d,0,e[0]),t.set(a,d,1,e[1]),t.set(a,d,2,e[2]),t.set(a,d,3,e[3]),u.slice(-1)[0].push(e[3]),s.slice(-1)[0].push(g.angle)}}return function(t){function e(t){let e=t[0],n=t[1];return[[e+1,n+1],[e+1,n],[e+1,n-1],[e,n+1],[e,n-1],[e-1,n+1],[e-1,n],[e-1,n-1]]}for(weakPixel in c){let n=e(c[weakPixel]);for(pixel in n)if(l.find(t=>r.isEqual(t,n[pixel]))){t.set(weakPixel[0],weakPixel[1],3,255),c.splice(weakPixel,weakPixel);break}}return c.forEach(e=>t.set(e[0],e[1],3,0)),t}(function(t,e,n){const r=.2*p(u),i=r*n;for(let e=0;e<t.shape[0];e++)for(let n=0;n<t.shape[1];n++){let a=[e,n];u[e][n]>i?u[e][n]>r?l.push(a):c.push(a):t.set(e,n,3,0)}return l.forEach(e=>t.set(e[0],e[1],3,255)),t}(function(t){s=s.map(t=>t.map(h));for(let e=1;e<t.shape[0]-1;e++)for(let n=1;n<t.shape[1]-1;n++){let r=s[e][n];t.get(e,n);r>=-22.5&&r<=22.5||r<-157.5&&r>=-180?u[e][n]>=u[e][n+1]&&u[e][n]>=u[e][n-1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):r>=22.5&&r<=67.5||r<-112.5&&r>=-157.5?u[e][n]>=u[e+1][n+1]&&u[e][n]>=u[e-1][n-1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):r>=67.5&&r<=112.5||r<-67.5&&r>=-112.5?u[e][e]>=u[e+1][n]&&u[e][n]>=u[e][n]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):(r>=112.5&&r<=157.5||r<-22.5&&r>=-67.5)&&(u[e][n]>=u[e+1][n-1]&&u[e][n]>=u[e-1][n+1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0))}return t}(t),0,n))};var h=t=>180*t/Math.PI,p=t=>Math.max(...t.map(t=>t.map(t=>t||0)).map(t=>Math.max(...t)))},{lodash:58}],161:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,e.highThresholdRatio=e.highThresholdRatio||.2,e.lowThresholdRatio=e.lowThresholdRatio||.15,n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[(t+e+n)/3,(t+e+n)/3,(t+e+n)/3,r]},extraManipulation:function(n){return n=t("ndarray-gaussian-filter")(n,e.blur),t("./EdgeUtils")(n,e.highThresholdRatio,e.lowThresholdRatio,e.inBrowser)},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171,"./EdgeUtils":160,"ndarray-gaussian-filter":63}],162:[function(t,e,n){e.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 at: https://en.wikipedia.org/wiki/Canny_edge_detector",inputs:{blur:{type:"integer",desc:"amount of gaussian blur(Less blur gives more detail, typically 0-5)",default:2},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}}}},{}],163:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),t("fisheyegl"),{options:e,draw:function(t,r){n.onDraw(e.step);var i=this;if(e.inBrowser){if(document.querySelector("#image-sequencer-canvas"))var a=document.querySelector("#image-sequencer-canvas");else(a=document.createElement("canvas")).style.display="none",a.setAttribute("id","image-sequencer-canvas"),document.body.append(a);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(){i.output={src:a.toDataURL(),format:t.format},e.step.output=i.output.src,r(),n.onComplete(e.step)})}else this.output=t,r()},output:void 0,UI:n}}},{fisheyegl:15}],164:[function(t,e,n){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:"Patht to a WebGL fragment shader file",default:"(inbuilt)"},vertexSrc:{type:"PATH",desc:"Patht to a WebGL vertex shader file",default:"(inbuilt)"}}}},{}],165:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[255-t,255-e,255-n,r]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],166:[function(t,e,n){e.exports={name:"Invert",description:"Inverts the image.",inputs:{}}},{}],167:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).filter=e.filter||"red",n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){if("red"==e.filter)var a=(r-t)/(1*r+t);"blue"==e.filter&&(a=(t-r)/(1*r+t));var o=255*(a+1)/2;return[o,o,o,i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],168:[function(t,e,n){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. <a href='https://publiclab.org/ndvi'>Read more</a>.<br /><br/>This is designed for use with red-filtered single camera <a href='http://publiclab.org/infragram'>DIY Infragram cameras</a>; change to 'blue' for blue filters",inputs:{filter:{type:"select",desc:"Filter color",default:"red",values:["red","blue"]}}}},{}],169:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){var a=Math.sqrt(t*t*.299+n*n*.587+n*n*.114);return t=a+(t-a)*e.saturation,n=a+(n-a)*e.saturation,r=a+(r-a)*e.saturation,[Math.round(t),Math.round(n),Math.round(r),i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":171}],170:[function(t,e,n){e.exports={name:"Saturation",description:"Change the saturation of the image by given value, from 0-1, with 1 being 100% saturated.",inputs:{saturation:{type:"integer",desc:"saturation for the new image between 0 and 2, 0 being black and white and 2 being highly saturated",default:0}}}},{}],171:[function(t,e,n){(function(n,r){e.exports=function(e,i){(i=i||{}).changePixel=i.changePixel||function(t,e,n,r){return[t,e,n,r]},i.extraManipulation=i.extraManipulation||function(t){return t};var a=t("get-pixels"),o=t("save-pixels");a(e.src,function(a,s){if(a)console.log("Bad image path",e);else{if(i.getNeighbourPixel&&(i.getNeighbourPixel.fun=function(t,e){return i.getNeighbourPixel(s,l,c,t,e)}),!i.inBrowser&&!n.env.TEST)try{var u=t("pace")(s.shape[0]*s.shape[1])}catch(t){i.inBrowser=!0}for(var l=0;l<s.shape[0];l++)for(var c=0;c<s.shape[1];c++){var 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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"},{}],19:[function(t,e,n){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"},{}],20:[function(t,e,n){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"},{}],21:[function(t,e,n){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"},{}],22:[function(t,e,n){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"},{}],23:[function(t,e,n){(function(n,r){"use strict";var i=t("path"),a=t("ndarray"),o=t("omggif").GifReader,s=(t("ndarray-pack"),t("through"),t("data-uri-to-buffer"));function u(t,e){var n;try{n=new o(t)}catch(t){return void e(t)}if(n.numFrames()>0){var r=[n.numFrames(),n.height,n.width,4],i=new Uint8Array(r[0]*r[1]*r[2]*r[3]),s=a(i,r);try{for(var u=0;u<n.numFrames();++u)n.decodeAndBlitFrameRGBA(u,i.subarray(s.index(u,0,0,0),s.index(u+1,0,0,0)))}catch(t){return void e(t)}e(null,s.transpose(0,2,1))}else{r=[n.height,n.width,4],i=new Uint8Array(r[0]*r[1]*r[2]),s=a(i,r);try{n.decodeAndBlitFrameRGBA(0,i)}catch(t){return void e(t)}e(null,s.transpose(1,0))}}function l(t,e){r.nextTick(function(){try{var n=s(t);n?u(function(t){if(void 0===t[0]){for(var e=t.length,n=new Uint8Array(e),r=0;r<e;++r)n[r]=t.get(r);return n}return new Uint8Array(t)}(n),e):e(new Error("Error parsing data URI"))}catch(t){e(t)}})}e.exports=function(t,e,r){r||(r=e,e="");var o=i.extname(t);switch(e||o.toUpperCase()){case".GIF":!function(t,e){var n=new XMLHttpRequest;n.open("GET",t,!0),n.responseType="arraybuffer",n.overrideMimeType&&n.overrideMimeType("application/binary"),n.onerror=function(t){e(t)},n.onload=function(){4===n.readyState&&u(new Uint8Array(n.response),e)},n.send()}(t,r);break;default:n.isBuffer(t)&&(t="data:"+e+";base64,"+t.toString("base64")),0===t.indexOf("data:image/gif;")?l(t,r):function(t,e){var n=new Image;n.crossOrigin="Anonymous",n.onload=function(){var t=document.createElement("canvas");t.width=n.width,t.height=n.height;var r=t.getContext("2d");r.drawImage(n,0,0);var i=r.getImageData(0,0,n.width,n.height);e(null,a(new Uint8Array(i.data),[n.width,n.height,4],[4,4*n.width,1],0))},n.onerror=function(t){e(t)},n.src=t}(t,r)}}}).call(this,{isBuffer:t("../is-buffer/index.js")},t("_process"))},{"../is-buffer/index.js":55,_process:94,"data-uri-to-buffer":24,ndarray:67,"ndarray-pack":65,omggif:69,path:71,through:123}],24:[function(t,e,n){(function(t){e.exports=function(e){if(!/^data\:/i.test(e))throw new TypeError('`uri` does not appear to be a Data URI (must begin with "data:")');var n=(e=e.replace(/\r?\n/g,"")).indexOf(",");if(-1===n||n<=4)throw new TypeError("malformed data: URI");for(var r=e.substring(5,n).split(";"),i=!1,a="US-ASCII",o=0;o<r.length;o++)"base64"==r[o]?i=!0:0==r[o].indexOf("charset=")&&(a=r[o].substring(8));var s=unescape(e.substring(n+1)),u=new t(s,i?"base64":"ascii");return u.type=r[0]||"text/plain",u.charset=a,u}}).call(this,t("buffer").Buffer)},{buffer:4}],25:[function(t,e,n){(function(n){t("assert"),t("events").EventEmitter;var r=t("readable-stream"),i=t("util"),a=t("./TypedNeuQuant.js"),o=t("./LZWEncoder.js");function s(t){r.call(this,t),this.okayToPush=!0,this.resetData()}function u(t,e,n){var r=(n=n||{}).highWaterMark;s.call(this,{highWaterMark:r||0===r?r:65536}),this.width=~~t,this.height=~~e,this.transparent=null,this.transIndex=0,this.repeat=-1,this.delay=0,this.pixels=null,this.indexedPixels=null,this.colorDepth=null,this.colorTab=null,this.usedEntry=[],this.palSize=7,this.dispose=-1,this.firstFrame=!0,this.sample=10;var i=this;function a(){i.flushData()}this.on("writeHeader#stop",a),this.on("frame#stop",a),this.on("finish#stop",function(){a(),i.push(null)})}i.inherits(s,r),s.prototype._read=function(){this.okayToPush=!0},s.prototype.resetData=function(){this.data=[]},s.prototype.flushData=function(){if(!this.okayToPush){var t=new Error("GIF memory limit exceeded. Please `read` from GIF before writing additional frames/information.");return this.emit("error",t)}var e=new n(this.data);this.resetData(),this.okayToPush=this.push(e)},s.prototype.writeByte=function(t){this.data.push(t)},s.prototype.writeUTFBytes=function(t){for(var e=t.length,n=0;n<e;n++)this.writeByte(t.charCodeAt(n))},s.prototype.writeBytes=function(t,e,n){for(var r=n||t.length,i=e||0;i<r;i++)this.writeByte(t[i])},i.inherits(u,s),u.prototype.setDelay=function(t){this.delay=Math.round(t/10)},u.prototype.setFrameRate=function(t){this.delay=Math.round(100/t)},u.prototype.setDispose=function(t){t>=0&&(this.dispose=t)},u.prototype.setRepeat=function(t){this.repeat=t},u.prototype.setTransparent=function(t){this.transparent=t},u.prototype.analyzeImage=function(t){this.setImagePixels(this.removeAlphaChannel(t)),this.analyzePixels()},u.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},u.prototype.outputImage=function(){this.writePixels()},u.prototype.addFrame=function(t){this.emit("frame#start"),this.analyzeImage(t),this.writeImageInfo(),this.outputImage(),this.emit("frame#stop")},u.prototype.finish=function(){this.emit("finish#start"),this.writeByte(59),this.emit("finish#stop")},u.prototype.setQuality=function(t){t<1&&(t=1),this.sample=t},u.prototype.writeHeader=function(){this.emit("writeHeader#start"),this.writeUTFBytes("GIF89a"),this.emit("writeHeader#stop")},u.prototype.analyzePixels=function(){var t=this.pixels.length/3;this.indexedPixels=new Uint8Array(t);var e=new a(this.pixels,this.sample);e.buildColormap(),this.colorTab=e.getColormap();for(var n=0,r=0;r<t;r++){var i=e.lookupRGB(255&this.pixels[n++],255&this.pixels[n++],255&this.pixels[n++]);this.usedEntry[i]=!0,this.indexedPixels[r]=i}this.pixels=null,this.colorDepth=8,this.palSize=7,null!==this.transparent&&(this.transIndex=this.findClosest(this.transparent))},u.prototype.findClosest=function(t){if(null===this.colorTab)return-1;for(var e=(16711680&t)>>16,n=(65280&t)>>8,r=255&t,i=0,a=16777216,o=this.colorTab.length,s=0;s<o;){var u=e-(255&this.colorTab[s++]),l=n-(255&this.colorTab[s++]),c=r-(255&this.colorTab[s]),f=u*u+l*l+c*c,h=s/3;this.usedEntry[h]&&f<a&&(a=f,i=h),s++}return i},u.prototype.removeAlphaChannel=function(t){for(var e=this.width,n=this.height,r=new Uint8Array(e*n*3),i=0,a=0;a<n;a++)for(var o=0;o<e;o++){var s=a*e*4+4*o;r[i++]=t[s],r[i++]=t[s+1],r[i++]=t[s+2]}return r},u.prototype.setImagePixels=function(t){this.pixels=t},u.prototype.writeGraphicCtrlExt=function(){var t,e;this.writeByte(33),this.writeByte(249),this.writeByte(4),null===this.transparent?(t=0,e=0):(t=1,e=2),this.dispose>=0&&(e=7&dispose),e<<=2,this.writeByte(0|e|t),this.writeShort(this.delay),this.writeByte(this.transIndex),this.writeByte(0)},u.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)},u.prototype.writeLSD=function(){this.writeShort(this.width),this.writeShort(this.height),this.writeByte(240|this.palSize),this.writeByte(0),this.writeByte(0)},u.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)},u.prototype.writePalette=function(){this.writeBytes(this.colorTab);for(var t=768-this.colorTab.length,e=0;e<t;e++)this.writeByte(0)},u.prototype.writeShort=function(t){this.writeByte(255&t),this.writeByte(t>>8&255)},u.prototype.writePixels=function(){new o(this.width,this.height,this.indexedPixels,this.colorDepth).encode(this)},u.prototype.stream=function(){return this},u.ByteCapacitor=s,e.exports=u}).call(this,t("buffer").Buffer)},{"./LZWEncoder.js":26,"./TypedNeuQuant.js":27,assert:36,buffer:4,events:40,"readable-stream":34,util:131}],26:[function(t,e,n){var r=-1,i=12,a=5003,o=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];e.exports=function(t,e,n,s){var u,l,c,f,h,p,d,g,v,m=Math.max(2,s),_=new Uint8Array(256),w=new Int32Array(a),b=new Int32Array(a),y=0,x=0,k=!1;function E(t,e){_[l++]=t,l>=254&&M(e)}function S(t){A(a),x=g+2,k=!0,j(g,t)}function A(t){for(var e=0;e<t;++e)w[e]=-1}function M(t){l>0&&(t.writeByte(l),t.writeBytes(_,0,l),l=0)}function T(t){return(1<<t)-1}function I(){return 0===f?r:(--f,255&n[h++])}function j(t,e){for(u&=o[y],y>0?u|=t<<y:u=t,y+=p;y>=8;)E(255&u,e),u>>=8,y-=8;if((x>c||k)&&(k?(c=T(p=d),k=!1):c=++p==i?1<<i:T(p)),t==v){for(;y>0;)E(255&u,e),u>>=8,y-=8;M(e)}}this.encode=function(n){n.writeByte(m),f=t*e,h=0,function(t,e){var n,o,s,u,f,h,m;for(k=!1,c=T(p=d=t),v=1+(g=1<<t-1),x=g+2,l=0,u=I(),m=0,n=a;n<65536;n*=2)++m;m=8-m,A(h=a),j(g,e);t:for(;(o=I())!=r;)if(n=(o<<i)+u,w[s=o<<m^u]!==n){if(w[s]>=0){f=h-s,0===s&&(f=1);do{if((s-=f)<0&&(s+=h),w[s]===n){u=b[s];continue t}}while(w[s]>=0)}j(u,e),u=o,x<1<<i?(b[s]=x++,w[s]=n):S(e)}else u=b[s];j(u,e),j(v,e)}(m+1,n),n.writeByte(0)}}},{}],27:[function(t,e,n){var r=100,i=256,a=i-1,o=4,s=16,u=1<<s,l=10,c=10,f=u>>c,h=u<<l-c,p=6,d=(i>>3)*(1<<p),g=30,v=1024,m=256,_=1<<18,w=499,b=491,y=487,x=503,k=3*x;e.exports=function(t,e){var n,E,S,A,M;function T(t,e,r,i,a){n[e][0]-=t*(n[e][0]-r)/v,n[e][1]-=t*(n[e][1]-i)/v,n[e][2]-=t*(n[e][2]-a)/v}function I(t,e,r,a,o){for(var s,u,l=Math.abs(e-t),c=Math.min(e+t,i),f=e+1,h=e-1,p=1;f<c||h>l;)u=M[p++],f<c&&((s=n[f++])[0]-=u*(s[0]-r)/_,s[1]-=u*(s[1]-a)/_,s[2]-=u*(s[2]-o)/_),h>l&&((s=n[h--])[0]-=u*(s[0]-r)/_,s[1]-=u*(s[1]-a)/_,s[2]-=u*(s[2]-o)/_)}function j(t,e,r){var a,u,p,d,g,v=~(1<<31),m=v,_=-1,w=_;for(a=0;a<i;a++)u=n[a],(p=Math.abs(u[0]-t)+Math.abs(u[1]-e)+Math.abs(u[2]-r))<v&&(v=p,_=a),(d=p-(S[a]>>s-o))<m&&(m=d,w=a),g=A[a]>>c,A[a]-=g,S[a]+=g<<l;return A[_]+=f,S[_]-=h,w}this.buildColormap=function(){!function(){var t,e;for(n=[],E=new Int32Array(256),S=new Int32Array(i),A=new Int32Array(i),M=new Int32Array(i>>3),t=0;t<i;t++)e=(t<<o+8)/i,n[t]=new Float64Array([e,e,e,0]),A[t]=u/i,S[t]=0}(),function(){var n,i,a,s,u,l,c=t.length,f=30+(e-1)/3,h=c/(3*e),_=~~(h/r),E=v,S=d,A=S>>p;for(A<=1&&(A=0),n=0;n<A;n++)M[n]=E*((A*A-n*n)*m/(A*A));c<k?(e=1,i=3):i=c%w!=0?3*w:c%b!=0?3*b:c%y!=0?3*y:3*x;var R=0;for(n=0;n<h;)if(T(E,l=j(a=(255&t[R])<<o,s=(255&t[R+1])<<o,u=(255&t[R+2])<<o),a,s,u),0!==A&&I(A,l,a,s,u),(R+=i)>=c&&(R-=c),n++,0===_&&(_=1),n%_==0)for(E-=E/f,(A=(S-=S/g)>>p)<=1&&(A=0),l=0;l<A;l++)M[l]=E*((A*A-l*l)*m/(A*A))}(),function(){for(var t=0;t<i;t++)n[t][0]>>=o,n[t][1]>>=o,n[t][2]>>=o,n[t][3]=t}(),function(){var t,e,r,o,s,u,l=0,c=0;for(t=0;t<i;t++){for(s=t,u=(r=n[t])[1],e=t+1;e<i;e++)(o=n[e])[1]<u&&(s=e,u=o[1]);if(o=n[s],t!=s&&(e=o[0],o[0]=r[0],r[0]=e,e=o[1],o[1]=r[1],r[1]=e,e=o[2],o[2]=r[2],r[2]=e,e=o[3],o[3]=r[3],r[3]=e),u!=l){for(E[l]=c+t>>1,e=l+1;e<u;e++)E[e]=t;l=u,c=t}}for(E[l]=c+a>>1,e=l+1;e<256;e++)E[e]=a}()},this.getColormap=function(){for(var t=[],e=[],r=0;r<i;r++)e[n[r][3]]=r;for(var a=0,o=0;o<i;o++){var s=e[o];t[a++]=n[s][0],t[a++]=n[s][1],t[a++]=n[s][2]}return t},this.lookupRGB=function(t,e,r){for(var a,o,s,u=1e3,l=-1,c=E[e],f=c-1;c<i||f>=0;)c<i&&((s=(o=n[c])[1]-e)>=u?c=i:(c++,s<0&&(s=-s),(a=o[0]-t)<0&&(a=-a),(s+=a)<u&&((a=o[2]-r)<0&&(a=-a),(s+=a)<u&&(u=s,l=o[3])))),f>=0&&((s=e-(o=n[f])[1])>=u?f=-1:(f--,s<0&&(s=-s),(a=o[0]-t)<0&&(a=-a),(s+=a)<u&&((a=o[2]-r)<0&&(a=-a),(s+=a)<u&&(u=s,l=o[3]))));return l}}},{}],28:[function(t,e,n){e.exports=Array.isArray||function(t){return"[object Array]"==Object.prototype.toString.call(t)}},{}],29:[function(t,e,n){(function(n){e.exports=s;var r=Object.keys||function(t){var e=[];for(var n in t)e.push(n);return e},i=t("core-util-is");i.inherits=t("inherits");var a=t("./_stream_readable"),o=t("./_stream_writable");function s(t){if(!(this instanceof s))return new s(t);a.call(this,t),o.call(this,t),t&&!1===t.readable&&(this.readable=!1),t&&!1===t.writable&&(this.writable=!1),this.allowHalfOpen=!0,t&&!1===t.allowHalfOpen&&(this.allowHalfOpen=!1),this.once("end",u)}function u(){this.allowHalfOpen||this._writableState.ended||n.nextTick(this.end.bind(this))}i.inherits(s,a),function(t,e){for(var n=0,r=t.length;n<r;n++)e(t[n],n)}(r(o.prototype),function(t){s.prototype[t]||(s.prototype[t]=o.prototype[t])})}).call(this,t("_process"))},{"./_stream_readable":31,"./_stream_writable":33,_process:94,"core-util-is":8,inherits:53}],30:[function(t,e,n){e.exports=a;var r=t("./_stream_transform"),i=t("core-util-is");function a(t){if(!(this instanceof a))return new a(t);r.call(this,t)}i.inherits=t("inherits"),i.inherits(a,r),a.prototype._transform=function(t,e,n){n(null,t)}},{"./_stream_transform":32,"core-util-is":8,inherits:53}],31:[function(t,e,n){(function(n){e.exports=f;var r=t("isarray"),i=t("buffer").Buffer;f.ReadableState=c;var a=t("events").EventEmitter;a.listenerCount||(a.listenerCount=function(t,e){return t.listeners(e).length});var o,s=t("stream"),u=t("core-util-is");u.inherits=t("inherits");var l=t("util");function c(e,n){var r=t("./_stream_duplex"),i=(e=e||{}).highWaterMark,a=e.objectMode?16:16384;this.highWaterMark=i||0===i?i:a,this.highWaterMark=~~this.highWaterMark,this.buffer=[],this.length=0,this.pipes=null,this.pipesCount=0,this.flowing=null,this.ended=!1,this.endEmitted=!1,this.reading=!1,this.sync=!0,this.needReadable=!1,this.emittedReadable=!1,this.readableListening=!1,this.objectMode=!!e.objectMode,n instanceof r&&(this.objectMode=this.objectMode||!!e.readableObjectMode),this.defaultEncoding=e.defaultEncoding||"utf8",this.ranOut=!1,this.awaitDrain=0,this.readingMore=!1,this.decoder=null,this.encoding=null,e.encoding&&(o||(o=t("string_decoder/").StringDecoder),this.decoder=new o(e.encoding),this.encoding=e.encoding)}function f(e){t("./_stream_duplex");if(!(this instanceof f))return new f(e);this._readableState=new c(e,this),this.readable=!0,s.call(this)}function h(t,e,r,i,a){var o=function(t,e){var n=null;u.isBuffer(e)||u.isString(e)||u.isNullOrUndefined(e)||t.objectMode||(n=new TypeError("Invalid 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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 n=e.pipes,r=e.pipesCount;e.pipes=null,e.pipesCount=0,e.flowing=!1;for(var i=0;i<r;i++)n[i].emit("unpipe",this);return this}return-1===(i=function(t,e){for(var n=0,r=t.length;n<r;n++)if(t[n]===e)return n;return-1}(e.pipes,t))?this:(e.pipes.splice(i,1),e.pipesCount-=1,1===e.pipesCount&&(e.pipes=e.pipes[0]),t.emit("unpipe",this),this)},f.prototype.on=function(t,e){var r=s.prototype.on.call(this,t,e);if("data"===t&&!1!==this._readableState.flowing&&this.resume(),"readable"===t&&this.readable){var i=this._readableState;if(!i.readableListening)if(i.readableListening=!0,i.emittedReadable=!1,i.needReadable=!0,i.reading)i.length&&g(this);else{var a=this;n.nextTick(function(){l("readable nexttick read 0"),a.read(0)})}}return r},f.prototype.addListener=f.prototype.on,f.prototype.resume=function(){var t=this._readableState;return t.flowing||(l("resume"),t.flowing=!0,t.reading||(l("resume read 0"),this.read(0)),function(t,e){e.resumeScheduled||(e.resumeScheduled=!0,n.nextTick(function(){!function(t,e){e.resumeScheduled=!1,t.emit("resume"),m(t),e.flowing&&!e.reading&&t.read(0)}(t,e)}))}(this,t)),this},f.prototype.pause=function(){return l("call pause flowing=%j",this._readableState.flowing),!1!==this._readableState.flowing&&(l("pause"),this._readableState.flowing=!1,this.emit("pause")),this},f.prototype.wrap=function(t){var e=this._readableState,n=!1,r=this;for(var i in t.on("end",function(){if(l("wrapped end"),e.decoder&&!e.ended){var t=e.decoder.end();t&&t.length&&r.push(t)}r.push(null)}),t.on("data",function(i){(l("wrapped data"),e.decoder&&(i=e.decoder.write(i)),i&&(e.objectMode||i.length))&&(r.push(i)||(n=!0,t.pause()))}),t)u.isFunction(t[i])&&u.isUndefined(this[i])&&(this[i]=function(e){return function(){return t[e].apply(t,arguments)}}(i));return function(t,e){for(var n=0,r=t.length;n<r;n++)e(t[n],n)}(["error","close","destroy","pause","resume"],function(e){t.on(e,r.emit.bind(r,e))}),r._read=function(e){l("wrapped _read",e),n&&(n=!1,t.resume())},r},f._fromList=_}).call(this,t("_process"))},{"./_stream_duplex":29,_process:94,buffer:4,"core-util-is":8,events:40,inherits:53,isarray:28,stream:108,"string_decoder/":35,util:3}],32:[function(t,e,n){e.exports=o;var r=t("./_stream_duplex"),i=t("core-util-is");function a(t,e){this.afterTransform=function(t,n){return function(t,e,n){var r=t._transformState;r.transforming=!1;var a=r.writecb;if(!a)return t.emit("error",new Error("no writecb in Transform class"));r.writechunk=null,r.writecb=null,i.isNullOrUndefined(n)||t.push(n);a&&a(e);var o=t._readableState;o.reading=!1,(o.needReadable||o.length<o.highWaterMark)&&t._read(o.highWaterMark)}(e,t,n)},this.needTransform=!1,this.transforming=!1,this.writecb=null,this.writechunk=null}function o(t){if(!(this instanceof o))return new o(t);r.call(this,t),this._transformState=new a(t,this);var e=this;this._readableState.needReadable=!0,this._readableState.sync=!1,this.once("prefinish",function(){i.isFunction(this._flush)?this._flush(function(t){s(e,t)}):s(e)})}function s(t,e){if(e)return t.emit("error",e);var n=t._writableState,r=t._transformState;if(n.length)throw new Error("calling transform done when ws.length != 0");if(r.transforming)throw new Error("calling transform done when still transforming");return t.push(null)}i.inherits=t("inherits"),i.inherits(o,r),o.prototype.push=function(t,e){return this._transformState.needTransform=!1,r.prototype.push.call(this,t,e)},o.prototype._transform=function(t,e,n){throw new Error("not implemented")},o.prototype._write=function(t,e,n){var r=this._transformState;if(r.writecb=n,r.writechunk=t,r.writeencoding=e,!r.transforming){var i=this._readableState;(r.needTransform||i.needReadable||i.length<i.highWaterMark)&&this._read(i.highWaterMark)}},o.prototype._read=function(t){var e=this._transformState;i.isNull(e.writechunk)||!e.writecb||e.transforming?e.needTransform=!0:(e.transforming=!0,this._transform(e.writechunk,e.writeencoding,e.afterTransform))}},{"./_stream_duplex":29,"core-util-is":8,inherits:53}],33:[function(t,e,n){(function(n){e.exports=s;var r=t("buffer").Buffer;s.WritableState=o;var i=t("core-util-is");i.inherits=t("inherits");var a=t("stream");function o(e,r){var i=t("./_stream_duplex"),a=(e=e||{}).highWaterMark,o=e.objectMode?16:16384;this.highWaterMark=a||0===a?a:o,this.objectMode=!!e.objectMode,r instanceof i&&(this.objectMode=this.objectMode||!!e.writableObjectMode),this.highWaterMark=~~this.highWaterMark,this.needDrain=!1,this.ending=!1,this.ended=!1,this.finished=!1;var s=!1===e.decodeStrings;this.decodeStrings=!s,this.defaultEncoding=e.defaultEncoding||"utf8",this.length=0,this.writing=!1,this.corked=0,this.sync=!0,this.bufferProcessing=!1,this.onwrite=function(t){!function(t,e){var r=t._writableState,i=r.sync,a=r.writecb;if(function(t){t.writing=!1,t.writecb=null,t.length-=t.writelen,t.writelen=0}(r),e)!function(t,e,r,i,a){r?n.nextTick(function(){e.pendingcb--,a(i)}):(e.pendingcb--,a(i));t._writableState.errorEmitted=!0,t.emit("error",i)}(t,r,i,e,a);else{var o=f(t,r);o||r.corked||r.bufferProcessing||!r.buffer.length||c(t,r),i?n.nextTick(function(){l(t,r,o,a)}):l(t,r,o,a)}}(r,t)},this.writecb=null,this.writelen=0,this.buffer=[],this.pendingcb=0,this.prefinished=!1,this.errorEmitted=!1}function s(e){var n=t("./_stream_duplex");if(!(this instanceof s||this instanceof n))return new s(e);this._writableState=new o(e,this),this.writable=!0,a.call(this)}function u(t,e,n,r,i,a,o){e.writelen=r,e.writecb=o,e.writing=!0,e.sync=!0,n?t._writev(i,e.onwrite):t._write(i,a,e.onwrite),e.sync=!1}function l(t,e,n,r){n||function(t,e){0===e.length&&e.needDrain&&(e.needDrain=!1,t.emit("drain"))}(t,e),e.pendingcb--,r(),p(t,e)}function 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n=t.length>=this.charLength-this.charReceived?this.charLength-this.charReceived:t.length;if(t.copy(this.charBuffer,this.charReceived,0,n),this.charReceived+=n,this.charReceived<this.charLength)return"";if(t=t.slice(n,t.length),!((i=(e=this.charBuffer.slice(0,this.charLength).toString(this.encoding)).charCodeAt(e.length-1))>=55296&&i<=56319)){if(this.charReceived=this.charLength=0,0===t.length)return e;break}this.charLength+=this.surrogateSize,e=""}this.detectIncompleteChar(t);var r=t.length;this.charLength&&(t.copy(this.charBuffer,0,t.length-this.charReceived,r),r-=this.charReceived);var i;r=(e+=t.toString(this.encoding,0,r)).length-1;if((i=e.charCodeAt(r))>=55296&&i<=56319){var a=this.surrogateSize;return this.charLength+=a,this.charReceived+=a,this.charBuffer.copy(this.charBuffer,a,0,a),t.copy(this.charBuffer,0,0,a),e.substring(0,r)}return e},a.prototype.detectIncompleteChar=function(t){for(var e=t.length>=3?3:t.length;e>0;e--){var n=t[t.length-e];if(1==e&&n>>5==6){this.charLength=2;break}if(e<=2&&n>>4==14){this.charLength=3;break}if(e<=3&&n>>3==30){this.charLength=4;break}}this.charReceived=e},a.prototype.end=function(t){var e="";if(t&&t.length&&(e=this.write(t)),this.charReceived){var n=this.charReceived,r=this.charBuffer,i=this.encoding;e+=r.slice(0,n).toString(i)}return e}},{buffer:4}],36:[function(t,e,n){(function(n){"use strict";function r(t,e){if(t===e)return 0;for(var n=t.length,r=e.length,i=0,a=Math.min(n,r);i<a;++i)if(t[i]!==e[i]){n=t[i],r=e[i];break}return n<r?-1:r<n?1:0}function i(t){return n.Buffer&&"function"==typeof n.Buffer.isBuffer?n.Buffer.isBuffer(t):!(null==t||!t._isBuffer)}var a=t("util/"),o=Object.prototype.hasOwnProperty,s=Array.prototype.slice,u="foo"===function(){}.name;function l(t){return Object.prototype.toString.call(t)}function c(t){return!i(t)&&("function"==typeof n.ArrayBuffer&&("function"==typeof ArrayBuffer.isView?ArrayBuffer.isView(t):!!t&&(t instanceof DataView||!!(t.buffer&&t.buffer instanceof ArrayBuffer))))}var f=e.exports=m,h=/\s*function\s+([^\(\s]*)\s*/;function p(t){if(a.isFunction(t)){if(u)return t.name;var e=t.toString().match(h);return e&&e[1]}}function d(t,e){return"string"==typeof t?t.length<e?t:t.slice(0,e):t}function g(t){if(u||!a.isFunction(t))return a.inspect(t);var e=p(t);return"[Function"+(e?": "+e:"")+"]"}function v(t,e,n,r,i){throw new f.AssertionError({message:n,actual:t,expected:e,operator:r,stackStartFunction:i})}function m(t,e){t||v(t,!0,e,"==",f.ok)}function _(t,e,n,o){if(t===e)return!0;if(i(t)&&i(e))return 0===r(t,e);if(a.isDate(t)&&a.isDate(e))return t.getTime()===e.getTime();if(a.isRegExp(t)&&a.isRegExp(e))return t.source===e.source&&t.global===e.global&&t.multiline===e.multiline&&t.lastIndex===e.lastIndex&&t.ignoreCase===e.ignoreCase;if(null!==t&&"object"==typeof t||null!==e&&"object"==typeof e){if(c(t)&&c(e)&&l(t)===l(e)&&!(t instanceof Float32Array||t instanceof Float64Array))return 0===r(new Uint8Array(t.buffer),new Uint8Array(e.buffer));if(i(t)!==i(e))return!1;var u=(o=o||{actual:[],expected:[]}).actual.indexOf(t);return-1!==u&&u===o.expected.indexOf(e)||(o.actual.push(t),o.expected.push(e),function(t,e,n,r){if(null===t||void 0===t||null===e||void 0===e)return!1;if(a.isPrimitive(t)||a.isPrimitive(e))return t===e;if(n&&Object.getPrototypeOf(t)!==Object.getPrototypeOf(e))return!1;var i=w(t),o=w(e);if(i&&!o||!i&&o)return!1;if(i)return t=s.call(t),e=s.call(e),_(t,e,n);var u,l,c=x(t),f=x(e);if(c.length!==f.length)return!1;for(c.sort(),f.sort(),l=c.length-1;l>=0;l--)if(c[l]!==f[l])return!1;for(l=c.length-1;l>=0;l--)if(u=c[l],!_(t[u],e[u],n,r))return!1;return!0}(t,e,n,o))}return n?t===e:t==e}function w(t){return"[object Arguments]"==Object.prototype.toString.call(t)}function b(t,e){if(!t||!e)return!1;if("[object RegExp]"==Object.prototype.toString.call(e))return e.test(t);try{if(t instanceof e)return!0}catch(t){}return!Error.isPrototypeOf(e)&&!0===e.call({},t)}function y(t,e,n,r){var i;if("function"!=typeof e)throw new TypeError('"block" argument must be a function');"string"==typeof n&&(r=n,n=null),i=function(t){var e;try{t()}catch(t){e=t}return e}(e),r=(n&&n.name?" 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s=i.indexOf("\n",o+1);i=i.substring(s+1)}this.stack=i}}},a.inherits(f.AssertionError,Error),f.fail=v,f.ok=m,f.equal=function(t,e,n){t!=e&&v(t,e,n,"==",f.equal)},f.notEqual=function(t,e,n){t==e&&v(t,e,n,"!=",f.notEqual)},f.deepEqual=function(t,e,n){_(t,e,!1)||v(t,e,n,"deepEqual",f.deepEqual)},f.deepStrictEqual=function(t,e,n){_(t,e,!0)||v(t,e,n,"deepStrictEqual",f.deepStrictEqual)},f.notDeepEqual=function(t,e,n){_(t,e,!1)&&v(t,e,n,"notDeepEqual",f.notDeepEqual)},f.notDeepStrictEqual=function t(e,n,r){_(e,n,!0)&&v(e,n,r,"notDeepStrictEqual",t)},f.strictEqual=function(t,e,n){t!==e&&v(t,e,n,"===",f.strictEqual)},f.notStrictEqual=function(t,e,n){t===e&&v(t,e,n,"!==",f.notStrictEqual)},f.throws=function(t,e,n){y(!0,t,e,n)},f.doesNotThrow=function(t,e,n){y(!1,t,e,n)},f.ifError=function(t){if(t)throw t};var x=Object.keys||function(t){var e=[];for(var n in t)o.call(t,n)&&e.push(n);return e}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"util/":131}],37:[function(t,e,n){(function(e,r){"use strict";var i=t("assert"),a=t("pako/lib/zlib/zstream"),o=t("pako/lib/zlib/deflate.js"),s=t("pako/lib/zlib/inflate.js"),u=t("pako/lib/zlib/constants");for(var l in u)n[l]=u[l];n.NONE=0,n.DEFLATE=1,n.INFLATE=2,n.GZIP=3,n.GUNZIP=4,n.DEFLATERAW=5,n.INFLATERAW=6,n.UNZIP=7;function c(t){if("number"!=typeof t||t<n.DEFLATE||t>n.UNZIP)throw new TypeError("Bad argument");this.dictionary=null,this.err=0,this.flush=0,this.init_done=!1,this.level=0,this.memLevel=0,this.mode=t,this.strategy=0,this.windowBits=0,this.write_in_progress=!1,this.pending_close=!1,this.gzip_id_bytes_read=0}c.prototype.close=function(){this.write_in_progress?this.pending_close=!0:(this.pending_close=!1,i(this.init_done,"close before init"),i(this.mode<=n.UNZIP),this.mode===n.DEFLATE||this.mode===n.GZIP||this.mode===n.DEFLATERAW?o.deflateEnd(this.strm):this.mode!==n.INFLATE&&this.mode!==n.GUNZIP&&this.mode!==n.INFLATERAW&&this.mode!==n.UNZIP||s.inflateEnd(this.strm),this.mode=n.NONE,this.dictionary=null)},c.prototype.write=function(t,e,n,r,i,a,o){return this._write(!0,t,e,n,r,i,a,o)},c.prototype.writeSync=function(t,e,n,r,i,a,o){return this._write(!1,t,e,n,r,i,a,o)},c.prototype._write=function(t,a,o,s,u,l,c,f){if(i.equal(arguments.length,8),i(this.init_done,"write before init"),i(this.mode!==n.NONE,"already finalized"),i.equal(!1,this.write_in_progress,"write already in progress"),i.equal(!1,this.pending_close,"close is pending"),this.write_in_progress=!0,i.equal(!1,void 0===a,"must provide flush value"),this.write_in_progress=!0,a!==n.Z_NO_FLUSH&&a!==n.Z_PARTIAL_FLUSH&&a!==n.Z_SYNC_FLUSH&&a!==n.Z_FULL_FLUSH&&a!==n.Z_FINISH&&a!==n.Z_BLOCK)throw new Error("Invalid flush value");if(null==o&&(o=r.alloc(0),u=0,s=0),this.strm.avail_in=u,this.strm.input=o,this.strm.next_in=s,this.strm.avail_out=f,this.strm.output=l,this.strm.next_out=c,this.flush=a,!t)return this._process(),this._checkError()?this._afterSync():void 0;var h=this;return e.nextTick(function(){h._process(),h._after()}),this},c.prototype._afterSync=function(){var t=this.strm.avail_out,e=this.strm.avail_in;return this.write_in_progress=!1,[e,t]},c.prototype._process=function(){var t=null;switch(this.mode){case n.DEFLATE:case n.GZIP:case n.DEFLATERAW:this.err=o.deflate(this.strm,this.flush);break;case n.UNZIP:switch(this.strm.avail_in>0&&(t=this.strm.next_in),this.gzip_id_bytes_read){case 0:if(null===t)break;if(31!==this.strm.input[t]){this.mode=n.INFLATE;break}if(this.gzip_id_bytes_read=1,t++,1===this.strm.avail_in)break;case 1:if(null===t)break;139===this.strm.input[t]?(this.gzip_id_bytes_read=2,this.mode=n.GUNZIP):this.mode=n.INFLATE;break;default:throw new Error("invalid number of gzip magic number bytes read")}case n.INFLATE:case n.GUNZIP:case n.INFLATERAW:for(this.err=s.inflate(this.strm,this.flush),this.err===n.Z_NEED_DICT&&this.dictionary&&(this.err=s.inflateSetDictionary(this.strm,this.dictionary),this.err===n.Z_OK?this.err=s.inflate(this.strm,this.flush):this.err===n.Z_DATA_ERROR&&(this.err=n.Z_NEED_DICT));this.strm.avail_in>0&&this.mode===n.GUNZIP&&this.err===n.Z_STREAM_END&&0!==this.strm.next_in[0];)this.reset(),this.err=s.inflate(this.strm,this.flush);break;default:throw new Error("Unknown mode "+this.mode)}},c.prototype._checkError=function(){switch(this.err){case n.Z_OK:case n.Z_BUF_ERROR:if(0!==this.strm.avail_out&&this.flush===n.Z_FINISH)return this._error("unexpected end of file"),!1;break;case n.Z_STREAM_END:break;case n.Z_NEED_DICT:return null==this.dictionary?this._error("Missing dictionary"):this._error("Bad dictionary"),!1;default:return this._error("Zlib error"),!1}return!0},c.prototype._after=function(){if(this._checkError()){var 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,r,a,o){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(r>=1&&r<=9,"invalid memlevel"),i(a===n.Z_FILTERED||a===n.Z_HUFFMAN_ONLY||a===n.Z_RLE||a===n.Z_FIXED||a===n.Z_DEFAULT_STRATEGY,"invalid strategy"),this._init(e,t,r,a,o),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,r,i,u){switch(this.level=t,this.windowBits=e,this.memLevel=r,this.strategy=i,this.flush=n.Z_NO_FLUSH,this.err=n.Z_OK,this.mode!==n.GZIP&&this.mode!==n.GUNZIP||(this.windowBits+=16),this.mode===n.UNZIP&&(this.windowBits+=32),this.mode!==n.DEFLATERAW&&this.mode!==n.INFLATERAW||(this.windowBits=-1*this.windowBits),this.strm=new a,this.mode){case n.DEFLATE:case n.GZIP:case n.DEFLATERAW:this.err=o.deflateInit2(this.strm,this.level,n.Z_DEFLATED,this.windowBits,this.memLevel,this.strategy);break;case n.INFLATE:case n.GUNZIP:case n.INFLATERAW:case n.UNZIP:this.err=s.inflateInit2(this.strm,this.windowBits);break;default:throw new Error("Unknown mode "+this.mode)}this.err!==n.Z_OK&&this._error("Init error"),this.dictionary=u,this.write_in_progress=!1,this.init_done=!0},c.prototype._setDictionary=function(){if(null!=this.dictionary){switch(this.err=n.Z_OK,this.mode){case n.DEFLATE:case n.DEFLATERAW:this.err=o.deflateSetDictionary(this.strm,this.dictionary)}this.err!==n.Z_OK&&this._error("Failed to set dictionary")}},c.prototype._reset=function(){switch(this.err=n.Z_OK,this.mode){case n.DEFLATE:case n.DEFLATERAW:case n.GZIP:this.err=o.deflateReset(this.strm);break;case n.INFLATE:case n.INFLATERAW:case n.GUNZIP:this.err=s.inflateReset(this.strm)}this.err!==n.Z_OK&&this._error("Failed to reset stream")},n.Zlib=c}).call(this,t("_process"),t("buffer").Buffer)},{_process:94,assert:36,buffer:4,"pako/lib/zlib/constants":43,"pako/lib/zlib/deflate.js":45,"pako/lib/zlib/inflate.js":47,"pako/lib/zlib/zstream":51}],38:[function(t,e,n){(function(e){"use strict";var r=t("buffer").Buffer,i=t("stream").Transform,a=t("./binding"),o=t("util"),s=t("assert").ok,u=t("buffer").kMaxLength,l="Cannot create final Buffer. It would be larger than 0x"+u.toString(16)+" bytes";a.Z_MIN_WINDOWBITS=8,a.Z_MAX_WINDOWBITS=15,a.Z_DEFAULT_WINDOWBITS=15,a.Z_MIN_CHUNK=64,a.Z_MAX_CHUNK=1/0,a.Z_DEFAULT_CHUNK=16384,a.Z_MIN_MEMLEVEL=1,a.Z_MAX_MEMLEVEL=9,a.Z_DEFAULT_MEMLEVEL=8,a.Z_MIN_LEVEL=-1,a.Z_MAX_LEVEL=9,a.Z_DEFAULT_LEVEL=a.Z_DEFAULT_COMPRESSION;for(var c=Object.keys(a),f=0;f<c.length;f++){var h=c[f];h.match(/^Z/)&&Object.defineProperty(n,h,{enumerable:!0,value:a[h],writable:!1})}for(var p={Z_OK:a.Z_OK,Z_STREAM_END:a.Z_STREAM_END,Z_NEED_DICT:a.Z_NEED_DICT,Z_ERRNO:a.Z_ERRNO,Z_STREAM_ERROR:a.Z_STREAM_ERROR,Z_DATA_ERROR:a.Z_DATA_ERROR,Z_MEM_ERROR:a.Z_MEM_ERROR,Z_BUF_ERROR:a.Z_BUF_ERROR,Z_VERSION_ERROR:a.Z_VERSION_ERROR},d=Object.keys(p),g=0;g<d.length;g++){var v=d[g];p[p[v]]=v}function m(t,e,n){var i=[],a=0;function o(){for(var e;null!==(e=t.read());)i.push(e),a+=e.length;t.once("readable",o)}function s(){var e,o=null;a>=u?o=new RangeError(l):e=r.concat(i,a),i=[],t.close(),n(o,e)}t.on("error",function(e){t.removeListener("end",s),t.removeListener("readable",o),n(e)}),t.on("end",s),t.end(e),o()}function _(t,e){if("string"==typeof e&&(e=r.from(e)),!r.isBuffer(e))throw new TypeError("Not a string or buffer");var n=t._finishFlushFlag;return t._processChunk(e,n)}function w(t){if(!(this instanceof w))return new w(t);M.call(this,t,a.DEFLATE)}function b(t){if(!(this instanceof b))return new b(t);M.call(this,t,a.INFLATE)}function y(t){if(!(this instanceof y))return new y(t);M.call(this,t,a.GZIP)}function x(t){if(!(this instanceof x))return new x(t);M.call(this,t,a.GUNZIP)}function k(t){if(!(this instanceof k))return new k(t);M.call(this,t,a.DEFLATERAW)}function E(t){if(!(this instanceof E))return new E(t);M.call(this,t,a.INFLATERAW)}function S(t){if(!(this instanceof S))return new S(t);M.call(this,t,a.UNZIP)}function A(t){return t===a.Z_NO_FLUSH||t===a.Z_PARTIAL_FLUSH||t===a.Z_SYNC_FLUSH||t===a.Z_FULL_FLUSH||t===a.Z_FINISH||t===a.Z_BLOCK}function M(t,e){var o=this;if(this._opts=t=t||{},this._chunkSize=t.chunkSize||n.Z_DEFAULT_CHUNK,i.call(this,t),t.flush&&!A(t.flush))throw new Error("Invalid flush flag: "+t.flush);if(t.finishFlush&&!A(t.finishFlush))throw new Error("Invalid flush flag: "+t.finishFlush);if(this._flushFlag=t.flush||a.Z_NO_FLUSH,this._finishFlushFlag=void 0!==t.finishFlush?t.finishFlush:a.Z_FINISH,t.chunkSize&&(t.chunkSize<n.Z_MIN_CHUNK||t.chunkSize>n.Z_MAX_CHUNK))throw new Error("Invalid chunk size: "+t.chunkSize);if(t.windowBits&&(t.windowBits<n.Z_MIN_WINDOWBITS||t.windowBits>n.Z_MAX_WINDOWBITS))throw new Error("Invalid windowBits: "+t.windowBits);if(t.level&&(t.level<n.Z_MIN_LEVEL||t.level>n.Z_MAX_LEVEL))throw new Error("Invalid compression level: "+t.level);if(t.memLevel&&(t.memLevel<n.Z_MIN_MEMLEVEL||t.memLevel>n.Z_MAX_MEMLEVEL))throw new Error("Invalid memLevel: "+t.memLevel);if(t.strategy&&t.strategy!=n.Z_FILTERED&&t.strategy!=n.Z_HUFFMAN_ONLY&&t.strategy!=n.Z_RLE&&t.strategy!=n.Z_FIXED&&t.strategy!=n.Z_DEFAULT_STRATEGY)throw new Error("Invalid strategy: "+t.strategy);if(t.dictionary&&!r.isBuffer(t.dictionary))throw new Error("Invalid dictionary: it should be a Buffer instance");this._handle=new a.Zlib(e);var s=this;this._hadError=!1,this._handle.onerror=function(t,e){T(s),s._hadError=!0;var r=new Error(t);r.errno=e,r.code=n.codes[e],s.emit("error",r)};var u=n.Z_DEFAULT_COMPRESSION;"number"==typeof t.level&&(u=t.level);var l=n.Z_DEFAULT_STRATEGY;"number"==typeof t.strategy&&(l=t.strategy),this._handle.init(t.windowBits||n.Z_DEFAULT_WINDOWBITS,u,t.memLevel||n.Z_DEFAULT_MEMLEVEL,l,t.dictionary),this._buffer=r.allocUnsafe(this._chunkSize),this._offset=0,this._level=u,this._strategy=l,this.once("end",this.close),Object.defineProperty(this,"_closed",{get:function(){return!o._handle},configurable:!0,enumerable:!0})}function T(t,n){n&&e.nextTick(n),t._handle&&(t._handle.close(),t._handle=null)}function I(t){t.emit("close")}Object.defineProperty(n,"codes",{enumerable:!0,value:Object.freeze(p),writable:!1}),n.Deflate=w,n.Inflate=b,n.Gzip=y,n.Gunzip=x,n.DeflateRaw=k,n.InflateRaw=E,n.Unzip=S,n.createDeflate=function(t){return new w(t)},n.createInflate=function(t){return new b(t)},n.createDeflateRaw=function(t){return new k(t)},n.createInflateRaw=function(t){return new E(t)},n.createGzip=function(t){return new y(t)},n.createGunzip=function(t){return new x(t)},n.createUnzip=function(t){return new S(t)},n.deflate=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new w(e),t,n)},n.deflateSync=function(t,e){return _(new w(e),t)},n.gzip=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new y(e),t,n)},n.gzipSync=function(t,e){return _(new y(e),t)},n.deflateRaw=function(t,e,n){return"function"==typeof e&&(n=e,e={}),m(new k(e),t,n)},n.deflateRawSync=function(t,e){return _(new 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if(t.match_available){if((r=a._tr_tally(t,0,t.window[t.strstart-1]))&&et(t,!1),t.strstart++,t.lookahead--,0===t.strm.avail_out)return G}else t.match_available=1,t.strstart++,t.lookahead--}return t.match_available&&(r=a._tr_tally(t,0,t.window[t.strstart-1]),t.match_available=0),t.insert=t.strstart<D-1?t.strstart:D-1,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}function ut(t,e,n,r,i){this.good_length=t,this.max_lazy=e,this.nice_length=n,this.max_chain=r,this.func=i}function lt(t){var e;return t&&t.state?(t.total_in=t.total_out=0,t.data_type=S,(e=t.state).pending=0,e.pending_out=0,e.wrap<0&&(e.wrap=-e.wrap),e.status=e.wrap?P:Z,t.adler=2===e.wrap?0:1,e.last_flush=l,a._tr_init(e),d):K(t,v)}function ct(t){var e,n=lt(t);return n===d&&((e=t.state).window_size=2*e.w_size,Q(e.head),e.max_lazy_match=r[e.level].max_lazy,e.good_match=r[e.level].good_length,e.nice_match=r[e.level].nice_length,e.max_chain_length=r[e.level].max_chain,e.strstart=0,e.block_start=0,e.lookahead=0,e.insert=0,e.match_length=e.prev_length=D-1,e.match_available=0,e.ins_h=0),n}function ft(t,e,n,r,a,o){if(!t)return v;var s=1;if(e===w&&(e=6),r<0?(s=0,r=-r):r>15&&(s=2,r-=16),a<1||a>M||n!==A||r<8||r>15||e<0||e>9||o<0||o>k)return K(t,v);8===r&&(r=9);var u=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=A,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*L),this.dyn_dtree=new i.Buf16(2*(2*R+1)),this.bl_tree=new i.Buf16(2*(2*C+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(B+1),this.heap=new i.Buf16(2*j+1),Q(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new i.Buf16(2*j+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=u,u.strm=t,u.wrap=s,u.gzhead=null,u.w_bits=r,u.w_size=1<<u.w_bits,u.w_mask=u.w_size-1,u.hash_bits=a+7,u.hash_size=1<<u.hash_bits,u.hash_mask=u.hash_size-1,u.hash_shift=~~((u.hash_bits+D-1)/D),u.window=new i.Buf8(2*u.w_size),u.head=new i.Buf16(u.hash_size),u.prev=new i.Buf16(u.w_size),u.lit_bufsize=1<<a+6,u.pending_buf_size=4*u.lit_bufsize,u.pending_buf=new i.Buf8(u.pending_buf_size),u.d_buf=1*u.lit_bufsize,u.l_buf=3*u.lit_bufsize,u.level=e,u.strategy=o,u.method=n,ct(t)}r=[new ut(0,0,0,0,function(t,e){var n=65535;for(n>t.pending_buf_size-5&&(n=t.pending_buf_size-5);;){if(t.lookahead<=1){if(at(t),0===t.lookahead&&e===l)return G;if(0===t.lookahead)break}t.strstart+=t.lookahead,t.lookahead=0;var r=t.block_start+n;if((0===t.strstart||t.strstart>=r)&&(t.lookahead=t.strstart-r,t.strstart=r,et(t,!1),0===t.strm.avail_out))return G;if(t.strstart-t.block_start>=t.w_size-O&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):(t.strstart>t.block_start&&(et(t,!1),t.strm.avail_out),G)}),new ut(4,4,8,4,ot),new ut(4,5,16,8,ot),new ut(4,6,32,32,ot),new ut(4,4,16,16,st),new ut(8,16,32,32,st),new ut(8,16,128,128,st),new ut(8,32,128,256,st),new ut(32,128,258,1024,st),new ut(32,258,258,4096,st)],n.deflateInit=function(t,e){return ft(t,e,A,T,I,E)},n.deflateInit2=ft,n.deflateReset=ct,n.deflateResetKeep=lt,n.deflateSetHeader=function(t,e){return t&&t.state?2!==t.state.wrap?v:(t.state.gzhead=e,d):v},n.deflate=function(t,e){var n,i,o,u;if(!t||!t.state||e>p||e<0)return t?K(t,v):v;if(i=t.state,!t.output||!t.input&&0!==t.avail_in||i.status===W&&e!==h)return K(t,0===t.avail_out?_:v);if(i.strm=t,n=i.last_flush,i.last_flush=e,i.status===P)if(2===i.wrap)t.adler=0,nt(i,31),nt(i,139),nt(i,8),i.gzhead?(nt(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)),nt(i,255&i.gzhead.time),nt(i,i.gzhead.time>>8&255),nt(i,i.gzhead.time>>16&255),nt(i,i.gzhead.time>>24&255),nt(i,9===i.level?2:i.strategy>=y||i.level<2?4:0),nt(i,255&i.gzhead.os),i.gzhead.extra&&i.gzhead.extra.length&&(nt(i,255&i.gzhead.extra.length),nt(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=N):(nt(i,0),nt(i,0),nt(i,0),nt(i,0),nt(i,0),nt(i,9===i.level?2:i.strategy>=y||i.level<2?4:0),nt(i,$),i.status=Z);else{var m=A+(i.w_bits-8<<4)<<8;m|=(i.strategy>=y||i.level<2?0:i.level<6?1:6===i.level?2:3)<<6,0!==i.strstart&&(m|=F),m+=31-m%31,i.status=Z,rt(i,m),0!==i.strstart&&(rt(i,t.adler>>>16),rt(i,65535&t.adler)),t.adler=1}if(i.status===N)if(i.gzhead.extra){for(o=i.pending;i.gzindex<(65535&i.gzhead.extra.length)&&(i.pending!==i.pending_buf_size||(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending!==i.pending_buf_size));)nt(i,255&i.gzhead.extra[i.gzindex]),i.gzindex++;i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),i.gzindex===i.gzhead.extra.length&&(i.gzindex=0,i.status=U)}else i.status=U;if(i.status===U)if(i.gzhead.name){o=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending===i.pending_buf_size)){u=1;break}u=i.gzindex<i.gzhead.name.length?255&i.gzhead.name.charCodeAt(i.gzindex++):0,nt(i,u)}while(0!==u);i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),0===u&&(i.gzindex=0,i.status=q)}else i.status=q;if(i.status===q)if(i.gzhead.comment){o=i.pending;do{if(i.pending===i.pending_buf_size&&(i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),tt(t),o=i.pending,i.pending===i.pending_buf_size)){u=1;break}u=i.gzindex<i.gzhead.comment.length?255&i.gzhead.comment.charCodeAt(i.gzindex++):0,nt(i,u)}while(0!==u);i.gzhead.hcrc&&i.pending>o&&(t.adler=s(t.adler,i.pending_buf,i.pending-o,o)),0===u&&(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&&(nt(i,255&t.adler),nt(i,t.adler>>8&255),t.adler=0,i.status=Z)):i.status=Z),0!==i.pending){if(tt(t),0===t.avail_out)return i.last_flush=-1,d}else if(0===t.avail_in&&J(e)<=J(n)&&e!==h)return K(t,_);if(i.status===W&&0!==t.avail_in)return K(t,_);if(0!==t.avail_in||0!==i.lookahead||e!==l&&i.status!==W){var w=i.strategy===y?function(t,e){for(var n;;){if(0===t.lookahead&&(at(t),0===t.lookahead)){if(e===l)return G;break}if(t.match_length=0,n=a._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++,n&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}(i,e):i.strategy===x?function(t,e){for(var n,r,i,o,s=t.window;;){if(t.lookahead<=z){if(at(t),t.lookahead<=z&&e===l)return G;if(0===t.lookahead)break}if(t.match_length=0,t.lookahead>=D&&t.strstart>0&&(r=s[i=t.strstart-1])===s[++i]&&r===s[++i]&&r===s[++i]){o=t.strstart+z;do{}while(r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&r===s[++i]&&i<o);t.match_length=z-(o-i),t.match_length>t.lookahead&&(t.match_length=t.lookahead)}if(t.match_length>=D?(n=a._tr_tally(t,1,t.match_length-D),t.lookahead-=t.match_length,t.strstart+=t.match_length,t.match_length=0):(n=a._tr_tally(t,0,t.window[t.strstart]),t.lookahead--,t.strstart++),n&&(et(t,!1),0===t.strm.avail_out))return G}return t.insert=0,e===h?(et(t,!0),0===t.strm.avail_out?Y:X):t.last_lit&&(et(t,!1),0===t.strm.avail_out)?G:H}(i,e):r[i.level].func(i,e);if(w!==Y&&w!==X||(i.status=W),w===G||w===Y)return 0===t.avail_out&&(i.last_flush=-1),d;if(w===H&&(e===c?a._tr_align(i):e!==p&&(a._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?g:(2===i.wrap?(nt(i,255&t.adler),nt(i,t.adler>>8&255),nt(i,t.adler>>16&255),nt(i,t.adler>>24&255),nt(i,255&t.total_in),nt(i,t.total_in>>8&255),nt(i,t.total_in>>16&255),nt(i,t.total_in>>24&255)):(rt(i,t.adler>>>16),rt(i,65535&t.adler)),tt(t),i.wrap>0&&(i.wrap=-i.wrap),0!==i.pending?d:g)},n.deflateEnd=function(t){var e;return t&&t.state?(e=t.state.status)!==P&&e!==N&&e!==U&&e!==q&&e!==V&&e!==Z&&e!==W?K(t,v):(t.state=null,e===Z?K(t,m):d):v},n.deflateSetDictionary=function(t,e){var n,r,a,s,u,l,c,f,h=e.length;if(!t||!t.state)return v;if(2===(s=(n=t.state).wrap)||1===s&&n.status!==P||n.lookahead)return v;for(1===s&&(t.adler=o(t.adler,e,h,0)),n.wrap=0,h>=n.w_size&&(0===s&&(Q(n.head),n.strstart=0,n.block_start=0,n.insert=0),f=new i.Buf8(n.w_size),i.arraySet(f,e,h-n.w_size,n.w_size,0),e=f,h=n.w_size),u=t.avail_in,l=t.next_in,c=t.input,t.avail_in=h,t.next_in=0,t.input=e,at(n);n.lookahead>=D;){r=n.strstart,a=n.lookahead-(D-1);do{n.ins_h=(n.ins_h<<n.hash_shift^n.window[r+D-1])&n.hash_mask,n.prev[r&n.w_mask]=n.head[n.ins_h],n.head[n.ins_h]=r,r++}while(--a);n.strstart=r,n.lookahead=D-1,at(n)}return n.strstart+=n.lookahead,n.block_start=n.strstart,n.insert=n.lookahead,n.lookahead=0,n.match_length=n.prev_length=D-1,n.match_available=0,t.next_in=l,t.input=c,t.avail_in=u,n.wrap=s,d},n.deflateInfo="pako deflate (from Nodeca project)"},{"../utils/common":41,"./adler32":42,"./crc32":44,"./messages":49,"./trees":50}],46:[function(t,e,n){"use strict";e.exports=function(t,e){var n,r,i,a,o,s,u,l,c,f,h,p,d,g,v,m,_,w,b,y,x,k,E,S,A;n=t.state,r=t.next_in,S=t.input,i=r+(t.avail_in-5),a=t.next_out,A=t.output,o=a-(e-t.avail_out),s=a+(t.avail_out-257),u=n.dmax,l=n.wsize,c=n.whave,f=n.wnext,h=n.window,p=n.hold,d=n.bits,g=n.lencode,v=n.distcode,m=(1<<n.lenbits)-1,_=(1<<n.distbits)-1;t:do{d<15&&(p+=S[r++]<<d,d+=8,p+=S[r++]<<d,d+=8),w=g[p&m];e:for(;;){if(p>>>=b=w>>>24,d-=b,0===(b=w>>>16&255))A[a++]=65535&w;else{if(!(16&b)){if(0==(64&b)){w=g[(65535&w)+(p&(1<<b)-1)];continue e}if(32&b){n.mode=12;break t}t.msg="invalid literal/length code",n.mode=30;break t}y=65535&w,(b&=15)&&(d<b&&(p+=S[r++]<<d,d+=8),y+=p&(1<<b)-1,p>>>=b,d-=b),d<15&&(p+=S[r++]<<d,d+=8,p+=S[r++]<<d,d+=8),w=v[p&_];n:for(;;){if(p>>>=b=w>>>24,d-=b,!(16&(b=w>>>16&255))){if(0==(64&b)){w=v[(65535&w)+(p&(1<<b)-1)];continue n}t.msg="invalid distance code",n.mode=30;break t}if(x=65535&w,d<(b&=15)&&(p+=S[r++]<<d,(d+=8)<b&&(p+=S[r++]<<d,d+=8)),(x+=p&(1<<b)-1)>u){t.msg="invalid distance too far back",n.mode=30;break t}if(p>>>=b,d-=b,x>(b=a-o)){if((b=x-b)>c&&n.sane){t.msg="invalid distance too far back",n.mode=30;break t}if(k=0,E=h,0===f){if(k+=l-b,b<y){y-=b;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}}else if(f<b){if(k+=l+f-b,(b-=f)<y){y-=b;do{A[a++]=h[k++]}while(--b);if(k=0,f<y){y-=b=f;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}}}else if(k+=f-b,b<y){y-=b;do{A[a++]=h[k++]}while(--b);k=a-x,E=A}for(;y>2;)A[a++]=E[k++],A[a++]=E[k++],A[a++]=E[k++],y-=3;y&&(A[a++]=E[k++],y>1&&(A[a++]=E[k++]))}else{k=a-x;do{A[a++]=A[k++],A[a++]=A[k++],A[a++]=A[k++],y-=3}while(y>2);y&&(A[a++]=A[k++],y>1&&(A[a++]=A[k++]))}break}}break}}while(r<i&&a<s);r-=y=d>>3,p&=(1<<(d-=y<<3))-1,t.next_in=r,t.next_out=a,t.avail_in=r<i?i-r+5:5-(r-i),t.avail_out=a<s?s-a+257:257-(a-s),n.hold=p,n.bits=d}},{}],47:[function(t,e,n){"use strict";var r=t("../utils/common"),i=t("./adler32"),a=t("./crc32"),o=t("./inffast"),s=t("./inftrees"),u=0,l=1,c=2,f=4,h=5,p=6,d=0,g=1,v=2,m=-2,_=-3,w=-4,b=-5,y=8,x=1,k=2,E=3,S=4,A=5,M=6,T=7,I=8,j=9,R=10,C=11,L=12,B=13,D=14,z=15,O=16,F=17,P=18,N=19,U=20,q=21,V=22,Z=23,W=24,G=25,H=26,Y=27,X=28,$=29,K=30,J=31,Q=32,tt=852,et=592,nt=15;function rt(t){return(t>>>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=x,e.last=0,e.havedict=0,e.dmax=32768,e.head=null,e.hold=0,e.bits=0,e.lencode=e.lendyn=new r.Buf32(tt),e.distcode=e.distdyn=new r.Buf32(et),e.sane=1,e.back=-1,d):m}function at(t){var e;return t&&t.state?((e=t.state).wsize=0,e.whave=0,e.wnext=0,it(t)):m}function ot(t,e){var n,r;return t&&t.state?(r=t.state,e<0?(n=0,e=-e):(n=1+(e>>4),e<48&&(e&=15)),e&&(e<8||e>15)?m:(null!==r.window&&r.wbits!==e&&(r.window=null),r.wrap=n,r.wbits=e,at(t))):m}function st(t,e){var n,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 r.Buf16(320),this.work=new r.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0},t.state=i,i.window=null,(n=ot(t,e))!==d&&(t.state=null),n):m}var ut,lt,ct=!0;function ft(t){if(ct){var e;for(ut=new r.Buf32(512),lt=new r.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(l,t.lens,0,288,ut,0,t.work,{bits:9}),e=0;e<32;)t.lens[e++]=5;s(c,t.lens,0,32,lt,0,t.work,{bits:5}),ct=!1}t.lencode=ut,t.lenbits=9,t.distcode=lt,t.distbits=5}function ht(t,e,n,i){var a,o=t.state;return null===o.window&&(o.wsize=1<<o.wbits,o.wnext=0,o.whave=0,o.window=new r.Buf8(o.wsize)),i>=o.wsize?(r.arraySet(o.window,e,n-o.wsize,o.wsize,0),o.wnext=0,o.whave=o.wsize):((a=o.wsize-o.wnext)>i&&(a=i),r.arraySet(o.window,e,n-i,a,o.wnext),(i-=a)?(r.arraySet(o.window,e,n-i,i,0),o.wnext=i,o.whave=o.wsize):(o.wnext+=a,o.wnext===o.wsize&&(o.wnext=0),o.whave<o.wsize&&(o.whave+=a))),0}n.inflateReset=at,n.inflateReset2=ot,n.inflateResetKeep=it,n.inflateInit=function(t){return st(t,nt)},n.inflateInit2=st,n.inflate=function(t,e){var n,tt,et,nt,it,at,ot,st,ut,lt,ct,pt,dt,gt,vt,mt,_t,wt,bt,yt,xt,kt,Et,St,At=0,Mt=new r.Buf8(4),Tt=[16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15];if(!t||!t.state||!t.output||!t.input&&0!==t.avail_in)return m;(n=t.state).mode===L&&(n.mode=B),it=t.next_out,et=t.output,ot=t.avail_out,nt=t.next_in,tt=t.input,at=t.avail_in,st=n.hold,ut=n.bits,lt=at,ct=ot,kt=d;t:for(;;)switch(n.mode){case x:if(0===n.wrap){n.mode=B;break}for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(2&n.wrap&&35615===st){n.check=0,Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0),st=0,ut=0,n.mode=k;break}if(n.flags=0,n.head&&(n.head.done=!1),!(1&n.wrap)||(((255&st)<<8)+(st>>8))%31){t.msg="incorrect header check",n.mode=K;break}if((15&st)!==y){t.msg="unknown compression method",n.mode=K;break}if(ut-=4,xt=8+(15&(st>>>=4)),0===n.wbits)n.wbits=xt;else if(xt>n.wbits){t.msg="invalid window size",n.mode=K;break}n.dmax=1<<xt,t.adler=n.check=1,n.mode=512&st?R:L,st=0,ut=0;break;case k:for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(n.flags=st,(255&n.flags)!==y){t.msg="unknown compression method",n.mode=K;break}if(57344&n.flags){t.msg="unknown header flags set",n.mode=K;break}n.head&&(n.head.text=st>>8&1),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0,n.mode=E;case E:for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.head&&(n.head.time=st),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,Mt[2]=st>>>16&255,Mt[3]=st>>>24&255,n.check=a(n.check,Mt,4,0)),st=0,ut=0,n.mode=S;case S:for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.head&&(n.head.xflags=255&st,n.head.os=st>>8),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0,n.mode=A;case A:if(1024&n.flags){for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.length=st,n.head&&(n.head.extra_len=st),512&n.flags&&(Mt[0]=255&st,Mt[1]=st>>>8&255,n.check=a(n.check,Mt,2,0)),st=0,ut=0}else n.head&&(n.head.extra=null);n.mode=M;case M:if(1024&n.flags&&((pt=n.length)>at&&(pt=at),pt&&(n.head&&(xt=n.head.extra_len-n.length,n.head.extra||(n.head.extra=new Array(n.head.extra_len)),r.arraySet(n.head.extra,tt,nt,pt,xt)),512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,n.length-=pt),n.length))break t;n.length=0,n.mode=T;case T:if(2048&n.flags){if(0===at)break t;pt=0;do{xt=tt[nt+pt++],n.head&&xt&&n.length<65536&&(n.head.name+=String.fromCharCode(xt))}while(xt&&pt<at);if(512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,xt)break t}else n.head&&(n.head.name=null);n.length=0,n.mode=I;case I:if(4096&n.flags){if(0===at)break t;pt=0;do{xt=tt[nt+pt++],n.head&&xt&&n.length<65536&&(n.head.comment+=String.fromCharCode(xt))}while(xt&&pt<at);if(512&n.flags&&(n.check=a(n.check,tt,pt,nt)),at-=pt,nt+=pt,xt)break t}else n.head&&(n.head.comment=null);n.mode=j;case j:if(512&n.flags){for(;ut<16;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st!==(65535&n.check)){t.msg="header crc mismatch",n.mode=K;break}st=0,ut=0}n.head&&(n.head.hcrc=n.flags>>9&1,n.head.done=!0),t.adler=n.check=0,n.mode=L;break;case R:for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}t.adler=n.check=rt(st),st=0,ut=0,n.mode=C;case C:if(0===n.havedict)return t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,v;t.adler=n.check=1,n.mode=L;case L:if(e===h||e===p)break t;case B:if(n.last){st>>>=7&ut,ut-=7&ut,n.mode=Y;break}for(;ut<3;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}switch(n.last=1&st,ut-=1,3&(st>>>=1)){case 0:n.mode=D;break;case 1:if(ft(n),n.mode=U,e===p){st>>>=2,ut-=2;break t}break;case 2:n.mode=F;break;case 3:t.msg="invalid block type",n.mode=K}st>>>=2,ut-=2;break;case D:for(st>>>=7&ut,ut-=7&ut;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if((65535&st)!=(st>>>16^65535)){t.msg="invalid stored block lengths",n.mode=K;break}if(n.length=65535&st,st=0,ut=0,n.mode=z,e===p)break t;case z:n.mode=O;case O:if(pt=n.length){if(pt>at&&(pt=at),pt>ot&&(pt=ot),0===pt)break t;r.arraySet(et,tt,nt,pt,it),at-=pt,nt+=pt,ot-=pt,it+=pt,n.length-=pt;break}n.mode=L;break;case F:for(;ut<14;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(n.nlen=257+(31&st),st>>>=5,ut-=5,n.ndist=1+(31&st),st>>>=5,ut-=5,n.ncode=4+(15&st),st>>>=4,ut-=4,n.nlen>286||n.ndist>30){t.msg="too many length or distance symbols",n.mode=K;break}n.have=0,n.mode=P;case P:for(;n.have<n.ncode;){for(;ut<3;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.lens[Tt[n.have++]]=7&st,st>>>=3,ut-=3}for(;n.have<19;)n.lens[Tt[n.have++]]=0;if(n.lencode=n.lendyn,n.lenbits=7,Et={bits:n.lenbits},kt=s(u,n.lens,0,19,n.lencode,0,n.work,Et),n.lenbits=Et.bits,kt){t.msg="invalid code lengths set",n.mode=K;break}n.have=0,n.mode=N;case N:for(;n.have<n.nlen+n.ndist;){for(;mt=(At=n.lencode[st&(1<<n.lenbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(_t<16)st>>>=vt,ut-=vt,n.lens[n.have++]=_t;else{if(16===_t){for(St=vt+2;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st>>>=vt,ut-=vt,0===n.have){t.msg="invalid bit length repeat",n.mode=K;break}xt=n.lens[n.have-1],pt=3+(3&st),st>>>=2,ut-=2}else if(17===_t){for(St=vt+3;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}ut-=vt,xt=0,pt=3+(7&(st>>>=vt)),st>>>=3,ut-=3}else{for(St=vt+7;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}ut-=vt,xt=0,pt=11+(127&(st>>>=vt)),st>>>=7,ut-=7}if(n.have+pt>n.nlen+n.ndist){t.msg="invalid bit length repeat",n.mode=K;break}for(;pt--;)n.lens[n.have++]=xt}}if(n.mode===K)break;if(0===n.lens[256]){t.msg="invalid code -- missing end-of-block",n.mode=K;break}if(n.lenbits=9,Et={bits:n.lenbits},kt=s(l,n.lens,0,n.nlen,n.lencode,0,n.work,Et),n.lenbits=Et.bits,kt){t.msg="invalid literal/lengths set",n.mode=K;break}if(n.distbits=6,n.distcode=n.distdyn,Et={bits:n.distbits},kt=s(c,n.lens,n.nlen,n.ndist,n.distcode,0,n.work,Et),n.distbits=Et.bits,kt){t.msg="invalid distances set",n.mode=K;break}if(n.mode=U,e===p)break t;case U:n.mode=q;case q:if(at>=6&&ot>=258){t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,o(t,ct),it=t.next_out,et=t.output,ot=t.avail_out,nt=t.next_in,tt=t.input,at=t.avail_in,st=n.hold,ut=n.bits,n.mode===L&&(n.back=-1);break}for(n.back=0;mt=(At=n.lencode[st&(1<<n.lenbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(mt&&0==(240&mt)){for(wt=vt,bt=mt,yt=_t;mt=(At=n.lencode[yt+((st&(1<<wt+bt)-1)>>wt)])>>>16&255,_t=65535&At,!(wt+(vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}st>>>=wt,ut-=wt,n.back+=wt}if(st>>>=vt,ut-=vt,n.back+=vt,n.length=_t,0===mt){n.mode=H;break}if(32&mt){n.back=-1,n.mode=L;break}if(64&mt){t.msg="invalid literal/length code",n.mode=K;break}n.extra=15&mt,n.mode=V;case V:if(n.extra){for(St=n.extra;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.length+=st&(1<<n.extra)-1,st>>>=n.extra,ut-=n.extra,n.back+=n.extra}n.was=n.length,n.mode=Z;case Z:for(;mt=(At=n.distcode[st&(1<<n.distbits)-1])>>>16&255,_t=65535&At,!((vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(0==(240&mt)){for(wt=vt,bt=mt,yt=_t;mt=(At=n.distcode[yt+((st&(1<<wt+bt)-1)>>wt)])>>>16&255,_t=65535&At,!(wt+(vt=At>>>24)<=ut);){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}st>>>=wt,ut-=wt,n.back+=wt}if(st>>>=vt,ut-=vt,n.back+=vt,64&mt){t.msg="invalid distance code",n.mode=K;break}n.offset=_t,n.extra=15&mt,n.mode=W;case W:if(n.extra){for(St=n.extra;ut<St;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}n.offset+=st&(1<<n.extra)-1,st>>>=n.extra,ut-=n.extra,n.back+=n.extra}if(n.offset>n.dmax){t.msg="invalid distance too far back",n.mode=K;break}n.mode=G;case G:if(0===ot)break t;if(pt=ct-ot,n.offset>pt){if((pt=n.offset-pt)>n.whave&&n.sane){t.msg="invalid distance too far back",n.mode=K;break}pt>n.wnext?(pt-=n.wnext,dt=n.wsize-pt):dt=n.wnext-pt,pt>n.length&&(pt=n.length),gt=n.window}else gt=et,dt=it-n.offset,pt=n.length;pt>ot&&(pt=ot),ot-=pt,n.length-=pt;do{et[it++]=gt[dt++]}while(--pt);0===n.length&&(n.mode=q);break;case H:if(0===ot)break t;et[it++]=n.length,ot--,n.mode=q;break;case Y:if(n.wrap){for(;ut<32;){if(0===at)break t;at--,st|=tt[nt++]<<ut,ut+=8}if(ct-=ot,t.total_out+=ct,n.total+=ct,ct&&(t.adler=n.check=n.flags?a(n.check,et,ct,it-ct):i(n.check,et,ct,it-ct)),ct=ot,(n.flags?st:rt(st))!==n.check){t.msg="incorrect data check",n.mode=K;break}st=0,ut=0}n.mode=X;case X:if(n.wrap&&n.flags){for(;ut<32;){if(0===at)break t;at--,st+=tt[nt++]<<ut,ut+=8}if(st!==(4294967295&n.total)){t.msg="incorrect length check",n.mode=K;break}st=0,ut=0}n.mode=$;case $:kt=g;break t;case K:kt=_;break t;case J:return w;case Q:default:return m}return t.next_out=it,t.avail_out=ot,t.next_in=nt,t.avail_in=at,n.hold=st,n.bits=ut,(n.wsize||ct!==t.avail_out&&n.mode<K&&(n.mode<Y||e!==f))&&ht(t,t.output,t.next_out,ct-t.avail_out)?(n.mode=J,w):(lt-=t.avail_in,ct-=t.avail_out,t.total_in+=lt,t.total_out+=ct,n.total+=ct,n.wrap&&ct&&(t.adler=n.check=n.flags?a(n.check,et,ct,t.next_out-ct):i(n.check,et,ct,t.next_out-ct)),t.data_type=n.bits+(n.last?64:0)+(n.mode===L?128:0)+(n.mode===U||n.mode===z?256:0),(0===lt&&0===ct||e===f)&&kt===d&&(kt=b),kt)},n.inflateEnd=function(t){if(!t||!t.state)return m;var e=t.state;return e.window&&(e.window=null),t.state=null,d},n.inflateGetHeader=function(t,e){var n;return t&&t.state?0==(2&(n=t.state).wrap)?m:(n.head=e,e.done=!1,d):m},n.inflateSetDictionary=function(t,e){var n,r=e.length;return t&&t.state?0!==(n=t.state).wrap&&n.mode!==C?m:n.mode===C&&i(1,e,r,0)!==n.check?_:ht(t,e,r,r)?(n.mode=J,w):(n.havedict=1,d):m},n.inflateInfo="pako inflate (from Nodeca project)"},{"../utils/common":41,"./adler32":42,"./crc32":44,"./inffast":46,"./inftrees":48}],48:[function(t,e,n){"use strict";var r=t("../utils/common"),i=[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],a=[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],o=[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],s=[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];e.exports=function(t,e,n,u,l,c,f,h){var p,d,g,v,m,_,w,b,y,x=h.bits,k=0,E=0,S=0,A=0,M=0,T=0,I=0,j=0,R=0,C=0,L=null,B=0,D=new r.Buf16(16),z=new r.Buf16(16),O=null,F=0;for(k=0;k<=15;k++)D[k]=0;for(E=0;E<u;E++)D[e[n+E]]++;for(M=x,A=15;A>=1&&0===D[A];A--);if(M>A&&(M=A),0===A)return l[c++]=20971520,l[c++]=20971520,h.bits=1,0;for(S=1;S<A&&0===D[S];S++);for(M<S&&(M=S),j=1,k=1;k<=15;k++)if(j<<=1,(j-=D[k])<0)return-1;if(j>0&&(0===t||1!==A))return-1;for(z[1]=0,k=1;k<15;k++)z[k+1]=z[k]+D[k];for(E=0;E<u;E++)0!==e[n+E]&&(f[z[e[n+E]]++]=E);if(0===t?(L=O=f,_=19):1===t?(L=i,B-=257,O=a,F-=257,_=256):(L=o,O=s,_=-1),C=0,E=0,k=S,m=c,T=M,I=0,g=-1,v=(R=1<<M)-1,1===t&&R>852||2===t&&R>592)return 1;for(;;){w=k-I,f[E]<_?(b=0,y=f[E]):f[E]>_?(b=O[F+f[E]],y=L[B+f[E]]):(b=96,y=0),p=1<<k-I,S=d=1<<T;do{l[m+(C>>I)+(d-=p)]=w<<24|b<<16|y|0}while(0!==d);for(p=1<<k-1;C&p;)p>>=1;if(0!==p?(C&=p-1,C+=p):C=0,E++,0==--D[k]){if(k===A)break;k=e[n+f[E]]}if(k>M&&(C&v)!==g){for(0===I&&(I=M),m+=S,j=1<<(T=k-I);T+I<A&&!((j-=D[T+I])<=0);)T++,j<<=1;if(R+=1<<T,1===t&&R>852||2===t&&R>592)return 1;l[g=C&v]=M<<24|T<<16|m-c|0}}return 0!==C&&(l[m+C]=k-I<<24|64<<16|0),h.bits=M,0}},{"../utils/common":41}],49:[function(t,e,n){"use strict";e.exports={2:"need dictionary",1:"stream end",0:"","-1":"file error","-2":"stream 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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(!((T=t[e++])>=0))throw Error("Invalid block size");if(0===T)break;e+=T}break;default:throw new Error("Unknown graphic control label: 0x"+t[e-1].toString(16))}break;case 44:var m=t[e++]|t[e++]<<8,_=t[e++]|t[e++]<<8,w=t[e++]|t[e++]<<8,b=t[e++]|t[e++]<<8,y=t[e++],x=y>>6&1,k=1<<1+(7&y),E=u,S=l,A=!1;y>>7&&(A=!0,E=e,S=k,e+=3*k);var M=e;for(e++;;){var T;if(!((T=t[e++])>=0))throw Error("Invalid block size");if(0===T)break;e+=T}f.push({x:m,y:_,width:w,height:b,has_local_palette:A,palette_offset:E,palette_size:S,data_offset:M,data_length:e-M,transparent_index:p,interlaced:!!x,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 g},this.frameInfo=function(t){if(t<0||t>=f.length)throw new Error("Frame index out of range.");return 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y=t[u+3*b],x=t[u+3*b+1],k=t[u+3*b+2];i[g++]=y,i[g++]=x,i[g++]=k,i[g++]=255}--h}}}}catch(t){}},{}],70:[function(t,e,n){(function(n){var r=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=r(),this.charm.pipe(n.stdout),this.charm.write("\n\n\n")}function a(t,e,n){for(n=n||" ";t.length<e;)t=n+t;return t}function o(t,e,n,r){t=(t+"").replace(/[^0-9+\-Ee.]/g,"");var i=isFinite(+t)?+t:0,a=isFinite(+e)?Math.abs(e):0,o=void 0===r?",":r,s=void 0===n?".":n,u="";return(u=(a?function(t,e){var 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n=[],r=0;r<t.length;r++)e(t[r],r,t)&&n.push(t[r]);return n}n.resolve=function(){for(var n="",r=!1,i=arguments.length-1;i>=-1&&!r;i--){var o=i>=0?arguments[i]:t.cwd();if("string"!=typeof o)throw new TypeError("Arguments to path.resolve must be strings");o&&(n=o+"/"+n,r="/"===o.charAt(0))}return n=e(a(n.split("/"),function(t){return!!t}),!r).join("/"),(r?"/":"")+n||"."},n.normalize=function(t){var r=n.isAbsolute(t),i="/"===o(t,-1);return(t=e(a(t.split("/"),function(t){return!!t}),!r).join("/"))||r||(t="."),t&&i&&(t+="/"),(r?"/":"")+t},n.isAbsolute=function(t){return"/"===t.charAt(0)},n.join=function(){var t=Array.prototype.slice.call(arguments,0);return n.normalize(a(t,function(t,e){if("string"!=typeof t)throw new TypeError("Arguments to path.join must be strings");return t}).join("/"))},n.relative=function(t,e){function r(t){for(var e=0;e<t.length&&""===t[e];e++);for(var n=t.length-1;n>=0&&""===t[n];n--);return 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g,v=t[c],m=t[c+1],_=t[c+2];a.inputHasAlpha?(g=t[c+3],o||(g/=255,v=Math.min(Math.max(Math.round((1-g)*h.red+g*v),0),255),m=Math.min(Math.max(Math.round((1-g)*h.green+g*m),0),255),_=Math.min(Math.max(Math.round((1-g)*h.blue+g*_),0),255))):g=255,u[f]=v,u[f+1]=m,u[f+2]=_,o&&(u[f+3]=g),c+=l,f+=s}return u}}).call(this,t("buffer").Buffer)},{"./constants":75,buffer:4}],74:[function(t,e,n){(function(n,r){"use strict";var i=t("util"),a=t("stream"),o=e.exports=function(){a.call(this),this._buffers=[],this._buffered=0,this._reads=[],this._paused=!1,this._encoding="utf8",this.writable=!0};i.inherits(o,a),o.prototype.read=function(t,e){this._reads.push({length:Math.abs(t),allowLess:t<0,func:e}),n.nextTick(function(){this._process(),this._paused&&this._reads.length>0&&(this._paused=!1,this.emit("drain"))}.bind(this))},o.prototype.write=function(t,e){return this.writable?(n=r.isBuffer(t)?t:new 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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))},o.prototype._processRead=function(t){this._reads.shift();for(var e=0,n=0,i=new r(t.length);e<t.length;){var a=this._buffers[n++],o=Math.min(a.length,t.length-e);a.copy(i,e,0,o),e+=o,o!==a.length&&(this._buffers[--n]=a.slice(o))}n>0&&this._buffers.splice(0,n),this._buffered-=t.length,t.func.call(this,i)},o.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:94,buffer:4,stream:108,util:131}],75:[function(t,e,n){"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}},{}],76:[function(t,e,n){"use strict";var r=[];!function(){for(var t=0;t<256;t++){for(var e=t,n=0;n<8;n++)1&e?e=3988292384^e>>>1:e>>>=1;r[t]=e}}();var i=e.exports=function(){this._crc=-1};i.prototype.write=function(t){for(var e=0;e<t.length;e++)this._crc=r[255&(this._crc^t[e])]^this._crc>>>8;return!0},i.prototype.crc32=function(){return-1^this._crc},i.crc32=function(t){for(var e=-1,n=0;n<t.length;n++)e=r[255&(e^t[n])]^e>>>8;return-1^e}},{}],77:[function(t,e,n){(function(n){"use strict";var r=t("./paeth-predictor");var i={0:function(t,e,n,r,i){t.copy(r,i,e,e+n)},1:function(t,e,n,r,i,a){for(var o=0;o<n;o++){var s=o>=a?t[e+o-a]:0,u=t[e+o]-s;r[i+o]=u}},2:function(t,e,n,r,i){for(var a=0;a<n;a++){var o=e>0?t[e+a-n]:0,s=t[e+a]-o;r[i+a]=s}},3:function(t,e,n,r,i,a){for(var o=0;o<n;o++){var s=o>=a?t[e+o-a]:0,u=e>0?t[e+o-n]:0,l=t[e+o]-(s+u>>1);r[i+o]=l}},4:function(t,e,n,i,a,o){for(var s=0;s<n;s++){var u=s>=o?t[e+s-o]:0,l=e>0?t[e+s-n]:0,c=e>0&&s>=o?t[e+s-(n+o)]:0,f=t[e+s]-r(u,l,c);i[a+s]=f}}},a={0:function(t,e,n){for(var r=0,i=e+n,a=e;a<i;a++)r+=Math.abs(t[a]);return r},1:function(t,e,n,r){for(var i=0,a=0;a<n;a++){var o=a>=r?t[e+a-r]:0,s=t[e+a]-o;i+=Math.abs(s)}return i},2:function(t,e,n){for(var r=0,i=e+n,a=e;a<i;a++){var o=e>0?t[a-n]:0,s=t[a]-o;r+=Math.abs(s)}return r},3:function(t,e,n,r){for(var i=0,a=0;a<n;a++){var o=a>=r?t[e+a-r]:0,s=e>0?t[e+a-n]:0,u=t[e+a]-(o+s>>1);i+=Math.abs(u)}return i},4:function(t,e,n,i){for(var a=0,o=0;o<n;o++){var s=o>=i?t[e+o-i]:0,u=e>0?t[e+o-n]:0,l=e>0&&o>=i?t[e+o-(n+i)]:0,c=t[e+o]-r(s,u,l);a+=Math.abs(c)}return a}};e.exports=function(t,e,r,o,s){var u;if("filterType"in o&&-1!==o.filterType){if("number"!=typeof o.filterType)throw new Error("unrecognised filter types");u=[o.filterType]}else u=[0,1,2,3,4];for(var l=e*s,c=0,f=0,h=new n((l+1)*r),p=u[0],d=0;d<r;d++){if(u.length>1)for(var g=1/0,v=0;v<u.length;v++){var m=a[u[v]](t,f,l,s);m<g&&(p=u[v],g=m)}h[c]=p,c++,i[p](t,f,l,h,c,s),c+=l,f+=l}return h}}).call(this,t("buffer").Buffer)},{"./paeth-predictor":86,buffer:4}],78:[function(t,e,n){(function(n){"use strict";var r=t("util"),i=t("./chunkstream"),a=t("./filter-parse"),o=e.exports=function(t){i.call(this);var e=[],r=this;this._filter=new a(t,{read:this.read.bind(this),write:function(t){e.push(t)},complete:function(){r.emit("complete",n.concat(e))}}),this._filter.start()};r.inherits(o,i)}).call(this,t("buffer").Buffer)},{"./chunkstream":74,"./filter-parse":80,buffer:4,util:131}],79:[function(t,e,n){(function(e){"use strict";var r=t("./sync-reader"),i=t("./filter-parse");n.process=function(t,n){var a=[],o=new r(t);return new i(n,{read:o.read.bind(o),write:function(t){a.push(t)},complete:function(){}}).start(),o.process(),e.concat(a)}}).call(this,t("buffer").Buffer)},{"./filter-parse":80,"./sync-reader":92,buffer:4}],80:[function(t,e,n){(function(n){"use strict";var r=t("./interlace"),i=t("./paeth-predictor");function a(t,e,n){var r=t*e;return 8!==n&&(r=Math.ceil(r/(8/n))),r}var o=e.exports=function(t,e){var n=t.width,i=t.height,o=t.interlace,s=t.bpp,u=t.depth;if(this.read=e.read,this.write=e.write,this.complete=e.complete,this._imageIndex=0,this._images=[],o)for(var l=r.getImagePasses(n,i),c=0;c<l.length;c++)this._images.push({byteWidth:a(l[c].width,s,u),height:l[c].height,lineIndex:0});else this._images.push({byteWidth:a(n,s,u),height:i,lineIndex:0});this._xComparison=8===u?s:16===u?2*s:1};o.prototype.start=function(){this.read(this._images[this._imageIndex].byteWidth+1,this._reverseFilterLine.bind(this))},o.prototype._unFilterType1=function(t,e,n){for(var r=this._xComparison,i=r-1,a=0;a<n;a++){var o=t[1+a],s=a>i?e[a-r]:0;e[a]=o+s}},o.prototype._unFilterType2=function(t,e,n){for(var r=this._lastLine,i=0;i<n;i++){var a=t[1+i],o=r?r[i]:0;e[i]=a+o}},o.prototype._unFilterType3=function(t,e,n){for(var r=this._xComparison,i=r-1,a=this._lastLine,o=0;o<n;o++){var s=t[1+o],u=a?a[o]:0,l=o>i?e[o-r]:0,c=Math.floor((l+u)/2);e[o]=s+c}},o.prototype._unFilterType4=function(t,e,n){for(var r=this._xComparison,a=r-1,o=this._lastLine,s=0;s<n;s++){var u=t[1+s],l=o?o[s]:0,c=s>a?e[s-r]:0,f=s>a&&o?o[s-r]:0,h=i(c,l,f);e[s]=u+h}},o.prototype._reverseFilterLine=function(t){var e,r=t[0],i=this._images[this._imageIndex],a=i.byteWidth;if(0===r)e=t.slice(1,a+1);else switch(e=new n(a),r){case 1:this._unFilterType1(t,e,a);break;case 2:this._unFilterType2(t,e,a);break;case 3:this._unFilterType3(t,e,a);break;case 4:this._unFilterType4(t,e,a);break;default:throw new Error("Unrecognised filter type - "+r)}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":82,"./paeth-predictor":86,buffer:4}],81:[function(t,e,n){(function(t){"use strict";e.exports=function(e,n){var r=n.depth,i=n.width,a=n.height,o=n.colorType,s=n.transColor,u=n.palette,l=e;return 3===o?function(t,e,n,r,i){for(var a=0,o=0;o<r;o++)for(var s=0;s<n;s++){var u=i[t[a]];if(!u)throw new Error("index "+t[a]+" not in palette");for(var l=0;l<4;l++)e[a+l]=u[l];a+=4}}(e,l,i,a,u):(s&&function(t,e,n,r,i){for(var a=0,o=0;o<r;o++)for(var s=0;s<n;s++){var u=!1;if(1===i.length?i[0]===t[a]&&(u=!0):i[0]===t[a]&&i[1]===t[a+1]&&i[2]===t[a+2]&&(u=!0),u)for(var l=0;l<4;l++)e[a+l]=0;a+=4}}(e,l,i,a,s),8!==r&&(16===r&&(l=new t(i*a*4)),function(t,e,n,r,i){for(var a=Math.pow(2,i)-1,o=0,s=0;s<r;s++)for(var u=0;u<n;u++){for(var l=0;l<4;l++)e[o+l]=Math.floor(255*t[o+l]/a+.5);o+=4}}(e,l,i,a,r))),l}}).call(this,t("buffer").Buffer)},{buffer:4}],82:[function(t,e,n){"use strict";var r=[{x:[0],y:[0]},{x:[4],y:[0]},{x:[0,4],y:[4]},{x:[2,6],y:[0,4]},{x:[0,2,4,6],y:[2,6]},{x:[1,3,5,7],y:[0,2,4,6]},{x:[0,1,2,3,4,5,6,7],y:[1,3,5,7]}];n.getImagePasses=function(t,e){for(var n=[],i=t%8,a=e%8,o=(t-i)/8,s=(e-a)/8,u=0;u<r.length;u++){for(var l=r[u],c=o*l.x.length,f=s*l.y.length,h=0;h<l.x.length&&l.x[h]<i;h++)c++;for(h=0;h<l.y.length&&l.y[h]<a;h++)f++;c>0&&f>0&&n.push({width:c,height:f,index:u})}return n},n.getInterlaceIterator=function(t){return function(e,n,i){var a=e%r[i].x.length,o=(e-a)/r[i].x.length*8+r[i].x[a],s=n%r[i].y.length;return 4*o+((n-s)/r[i].y.length*8+r[i].y[s])*t*4}}},{}],83:[function(t,e,n){(function(n){"use strict";var r=t("util"),i=t("stream"),a=t("./constants"),o=t("./packer"),s=e.exports=function(t){i.call(this);var e=t||{};this._packer=new o(e),this._deflate=this._packer.createDeflate(),this.readable=!0};r.inherits(s,i),s.prototype.pack=function(t,e,r,i){this.emit("data",new n(a.PNG_SIGNATURE)),this.emit("data",this._packer.packIHDR(e,r)),i&&this.emit("data",this._packer.packGAMA(i));var o=this._packer.filterData(t,e,r);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(o)}}).call(this,t("buffer").Buffer)},{"./constants":75,"./packer":85,buffer:4,stream:108,util:131}],84:[function(t,e,n){(function(n){"use strict";var r=!0,i=t("zlib");i.deflateSync||(r=!1);var a=t("./constants"),o=t("./packer");e.exports=function(t,e){if(!r)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 o(e||{}),u=[];u.push(new n(a.PNG_SIGNATURE)),u.push(s.packIHDR(t.width,t.height)),t.gamma&&u.push(s.packGAMA(t.gamma));var l=s.filterData(t.data,t.width,t.height),c=i.deflateSync(l,s.getDeflateOptions());if(l=null,!c||!c.length)throw new Error("bad png - invalid compressed data response");return u.push(s.packIDAT(c)),u.push(s.packIEND()),n.concat(u)}}).call(this,t("buffer").Buffer)},{"./constants":75,"./packer":85,buffer:4,zlib:38}],85:[function(t,e,n){(function(n){"use strict";var r=t("./constants"),i=t("./crc"),a=t("./bitpacker"),o=t("./filter-pack"),s=t("zlib"),u=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:r.COLORTYPE_COLOR_ALPHA,t.colorType!==r.COLORTYPE_COLOR&&t.colorType!==r.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")};u.prototype.getDeflateOptions=function(){return{chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy}},u.prototype.createDeflate=function(){return this._options.deflateFactory(this.getDeflateOptions())},u.prototype.filterData=function(t,e,n){var i=a(t,e,n,this._options),s=r.COLORTYPE_TO_BPP_MAP[this._options.colorType];return o(i,e,n,this._options,s)},u.prototype._packChunk=function(t,e){var r=e?e.length:0,a=new n(r+12);return a.writeUInt32BE(r,0),a.writeUInt32BE(t,4),e&&e.copy(a,8),a.writeInt32BE(i.crc32(a.slice(4,a.length-4)),a.length-4),a},u.prototype.packGAMA=function(t){var e=new n(4);return e.writeUInt32BE(Math.floor(t*r.GAMMA_DIVISION),0),this._packChunk(r.TYPE_gAMA,e)},u.prototype.packIHDR=function(t,e){var i=new n(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(r.TYPE_IHDR,i)},u.prototype.packIDAT=function(t){return this._packChunk(r.TYPE_IDAT,t)},u.prototype.packIEND=function(){return this._packChunk(r.TYPE_IEND,null)}}).call(this,t("buffer").Buffer)},{"./bitpacker":73,"./constants":75,"./crc":76,"./filter-pack":77,buffer:4,zlib:38}],86:[function(t,e,n){"use strict";e.exports=function(t,e,n){var r=t+e-n,i=Math.abs(r-t),a=Math.abs(r-e),o=Math.abs(r-n);return i<=a&&i<=o?t:a<=o?e:n}},{}],87:[function(t,e,n){"use strict";var r=t("util"),i=t("zlib"),a=t("./chunkstream"),o=t("./filter-parse-async"),s=t("./parser"),u=t("./bitmapper"),l=t("./format-normaliser"),c=e.exports=function(t){a.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()};r.inherits(c,a),c.prototype._handleError=function(t){this.emit("error",t),this.writable=!1,this.destroy(),this._inflate&&this._inflate.destroy&&this._inflate.destroy(),this.errord=!0},c.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)},c.prototype._handleMetaData=function(t){this.emit("metadata",t),this._bitmapInfo=Object.create(t),this._filter=new o(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=u.dataToBitMap(t,this._bitmapInfo),n=l(e,this._bitmapInfo);e=null}catch(t){return void this._handleError(t)}this.emit("parsed",n)}}},{"./bitmapper":72,"./chunkstream":74,"./filter-parse-async":78,"./format-normaliser":81,"./parser":89,util:131,zlib:38}],88:[function(t,e,n){(function(n){"use strict";var r=!0,i=t("zlib");i.deflateSync||(r=!1);var a=t("./sync-reader"),o=t("./filter-parse-sync"),s=t("./parser"),u=t("./bitmapper"),l=t("./format-normaliser");e.exports=function(t,e){if(!r)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 a(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 g=n.concat(p);p.length=0;var v=i.inflateSync(g);if(g=null,!v||!v.length)throw new Error("bad png - invalid inflate data response");var m=o.process(v,f);g=null;var _=u.dataToBitMap(m,f);m=null;var w=l(_,f);return f.data=w,f.gamma=h||0,f}}).call(this,t("buffer").Buffer)},{"./bitmapper":72,"./filter-parse-sync":79,"./format-normaliser":81,"./parser":89,"./sync-reader":92,buffer:4,zlib:38}],89:[function(t,e,n){(function(n){"use strict";var r=t("./constants"),i=t("./crc"),a=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[r.TYPE_IHDR]=this._handleIHDR.bind(this),this._chunks[r.TYPE_IEND]=this._handleIEND.bind(this),this._chunks[r.TYPE_IDAT]=this._handleIDAT.bind(this),this._chunks[r.TYPE_PLTE]=this._handlePLTE.bind(this),this._chunks[r.TYPE_tRNS]=this._handleTRNS.bind(this),this._chunks[r.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};a.prototype.start=function(){this.read(r.PNG_SIGNATURE.length,this._parseSignature.bind(this))},a.prototype._parseSignature=function(t){for(var e=r.PNG_SIGNATURE,n=0;n<e.length;n++)if(t[n]!==e[n])return void this.error(new Error("Invalid file signature"));this.read(8,this._parseChunkBegin.bind(this))},a.prototype._parseChunkBegin=function(t){for(var e=t.readUInt32BE(0),a=t.readUInt32BE(4),o="",s=4;s<8;s++)o+=String.fromCharCode(t[s]);var u=Boolean(32&t[4]);if(this._hasIHDR||a===r.TYPE_IHDR){if(this._crc=new i,this._crc.write(new n(o)),this._chunks[a])return this._chunks[a](e);u?this.read(e+4,this._skipChunk.bind(this)):this.error(new Error("Unsupported critical chunk type "+o))}else this.error(new Error("Expected IHDR on beggining"))},a.prototype._skipChunk=function(){this.read(8,this._parseChunkBegin.bind(this))},a.prototype._handleChunkEnd=function(){this.read(4,this._parseChunkEnd.bind(this))},a.prototype._parseChunkEnd=function(t){var e=t.readInt32BE(0),n=this._crc.crc32();this._options.checkCRC&&n!==e?this.error(new Error("Crc error - "+e+" - "+n)):this._hasIEND||this.read(8,this._parseChunkBegin.bind(this))},a.prototype._handleIHDR=function(t){this.read(t,this._parseIHDR.bind(this))},a.prototype._parseIHDR=function(t){this._crc.write(t);var e=t.readUInt32BE(0),n=t.readUInt32BE(4),i=t[8],a=t[9],o=t[10],s=t[11],u=t[12];if(8===i||4===i||2===i||1===i||16===i)if(a in r.COLORTYPE_TO_BPP_MAP)if(0===o)if(0===s)if(0===u||1===u){this._colorType=a;var l=r.COLORTYPE_TO_BPP_MAP[this._colorType];this._hasIHDR=!0,this.metadata({width:e,height:n,depth:i,interlace:Boolean(u),palette:Boolean(a&r.COLORTYPE_PALETTE),color:Boolean(a&r.COLORTYPE_COLOR),alpha:Boolean(a&r.COLORTYPE_ALPHA),bpp:l,colorType:a}),this._handleChunkEnd()}else this.error(new Error("Unsupported interlace method"));else this.error(new Error("Unsupported filter method"));else this.error(new Error("Unsupported compression method"));else this.error(new Error("Unsupported color type"));else this.error(new Error("Unsupported bit depth "+i))},a.prototype._handlePLTE=function(t){this.read(t,this._parsePLTE.bind(this))},a.prototype._parsePLTE=function(t){this._crc.write(t);for(var e=Math.floor(t.length/3),n=0;n<e;n++)this._palette.push([t[3*n],t[3*n+1],t[3*n+2],255]);this.palette(this._palette),this._handleChunkEnd()},a.prototype._handleTRNS=function(t){this.read(t,this._parseTRNS.bind(this))},a.prototype._parseTRNS=function(t){if(this._crc.write(t),this._colorType===r.COLORTYPE_PALETTE_COLOR){if(0===this._palette.length)return void this.error(new Error("Transparency chunk must be after palette"));if(t.length>this._palette.length)return void this.error(new Error("More transparent colors than palette size"));for(var e=0;e<t.length;e++)this._palette[e][3]=t[e];this.palette(this._palette)}this._colorType===r.COLORTYPE_GRAYSCALE&&this.transColor([t.readUInt16BE(0)]),this._colorType===r.COLORTYPE_COLOR&&this.transColor([t.readUInt16BE(0),t.readUInt16BE(2),t.readUInt16BE(4)]),this._handleChunkEnd()},a.prototype._handleGAMA=function(t){this.read(t,this._parseGAMA.bind(this))},a.prototype._parseGAMA=function(t){this._crc.write(t),this.gamma(t.readUInt32BE(0)/r.GAMMA_DIVISION),this._handleChunkEnd()},a.prototype._handleIDAT=function(t){this.read(-t,this._parseIDAT.bind(this,t))},a.prototype._parseIDAT=function(t,e){if(this._crc.write(e),this._colorType===r.COLORTYPE_PALETTE_COLOR&&0===this._palette.length)throw new Error("Expected palette not found");this.inflateData(e);var n=t-e.length;n>0?this._handleIDAT(n):this._handleChunkEnd()},a.prototype._handleIEND=function(t){this.read(t,this._parseIEND.bind(this))},a.prototype._parseIEND=function(t){this._crc.write(t),this._hasIEND=!0,this._handleChunkEnd(),this.finished&&this.finished()}}).call(this,t("buffer").Buffer)},{"./constants":75,"./crc":76,buffer:4}],90:[function(t,e,n){"use strict";var r=t("./parser-sync"),i=t("./packer-sync");n.read=function(t,e){return r(t,e||{})},n.write=function(t){return i(t)}},{"./packer-sync":84,"./parser-sync":88}],91:[function(t,e,n){(function(e,r){"use strict";var i=t("util"),a=t("stream"),o=t("./parser-async"),s=t("./packer-async"),u=t("./png-sync"),l=n.PNG=function(t){a.call(this),t=t||{},this.width=t.width||0,this.height=t.height||0,this.data=this.width>0&&this.height>0?new r(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 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n,r;e&&(n=function(t){this.removeListener("error",r),this.data=t,e(null,this)}.bind(this),r=function(t){this.removeListener("parsed",n),e(t,null)}.bind(this),this.once("parsed",n),this.once("error",r));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.emit("metadata",t)},l.prototype._gamma=function(t){this.gamma=t},l.prototype._handleClose=function(){this._parser.writable||this._packer.readable||this.emit("close")},l.bitblt=function(t,e,n,r,i,a,o,s){if(n>t.width||r>t.height||n+i>t.width||r+a>t.height)throw new Error("bitblt reading outside image");if(o>e.width||s>e.height||o+i>e.width||s+a>e.height)throw new Error("bitblt writing outside image");for(var u=0;u<a;u++)t.data.copy(e.data,(s+u)*e.width+o<<2,(r+u)*t.width+n<<2,(r+u)*t.width+n+i<<2)},l.prototype.bitblt=function(t,e,n,r,i,a,o){return 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r=t._writableState,i=r.sync,a=r.writecb;if(function(t){t.writing=!1,t.writecb=null,t.length-=t.writelen,t.writelen=0}(r),e)!function(t,e,r,i,a){r?n.nextTick(function(){a(i)}):a(i);t._writableState.errorEmitted=!0,t.emit("error",i)}(t,0,i,e,a);else{var o=c(t,r);o||r.bufferProcessing||!r.buffer.length||function(t,e){e.bufferProcessing=!0;for(var n=0;n<e.buffer.length;n++){var r=e.buffer[n],i=r.chunk,a=r.encoding,o=r.callback,s=e.objectMode?1:i.length;if(u(t,e,s,i,a,o),e.writing){n++;break}}e.bufferProcessing=!1,n<e.buffer.length?e.buffer=e.buffer.slice(n):e.buffer.length=0}(t,r),i?n.nextTick(function(){l(t,r,o,a)}):l(t,r,o,a)}}(e,t)},this.writecb=null,this.writelen=0,this.buffer=[],this.errorEmitted=!1}function s(e){var n=t("./_stream_duplex");if(!(this instanceof s||this instanceof n))return new s(e);this._writableState=new o(e,this),this.writable=!0,a.call(this)}function u(t,e,n,r,i,a){e.writelen=n,e.writecb=a,e.writing=!0,e.sync=!0,t._write(r,i,e.onwrite),e.sync=!1}function 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i=t("stream");(n=e.exports=t("./lib/_stream_readable.js")).Stream=i,n.Readable=n,n.Writable=t("./lib/_stream_writable.js"),n.Duplex=t("./lib/_stream_duplex.js"),n.Transform=t("./lib/_stream_transform.js"),n.PassThrough=t("./lib/_stream_passthrough.js"),r.browser||"disable"!==r.env.READABLE_STREAM||(e.exports=t("stream"))}).call(this,t("_process"))},{"./lib/_stream_duplex.js":95,"./lib/_stream_passthrough.js":96,"./lib/_stream_readable.js":97,"./lib/_stream_transform.js":98,"./lib/_stream_writable.js":99,_process:94,stream:108}],103:[function(t,e,n){var r=t("buffer"),i=r.Buffer;function a(t,e){for(var n in t)e[n]=t[n]}function o(t,e,n){return i(t,e,n)}i.from&&i.alloc&&i.allocUnsafe&&i.allocUnsafeSlow?e.exports=r:(a(r,n),n.Buffer=o),a(i,o),o.from=function(t,e,n){if("number"==typeof t)throw new TypeError("Argument must not be a number");return i(t,e,n)},o.alloc=function(t,e,n){if("number"!=typeof t)throw new TypeError("Argument must be a number");var r=i(t);return void 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s,u=a[0];for(n=0;n<o;n++){for(r=0;r<t[n];r++){for((u=a.pop()).children[u.index]=e[i];u.index>0;)u=a.pop();for(u.index++,a.push(u);a.length<=n;)a.push(s={children:[],index:0}),u.children[u.index]=s.children,u=s;i++}n+1<o&&(a.push(s={children:[],index:0}),u.children[u.index]=s.children,u=s)}return a[0].children}function f(e,n,r,i,a,o,s,u,l){r.precision,r.samplesPerLine,r.scanLines;var c=r.mcusPerLine,f=r.progressive,h=(r.maxH,r.maxV,n),p=0,d=0;function g(){if(d>0)return p>>--d&1;if(255==(p=e[n++])){var t=e[n++];if(t)throw"unexpected marker: "+(p<<8|t).toString(16)}return d=7,p>>>7}function v(t){for(var e,n=t;null!==(e=g());){if("number"==typeof(n=n[e]))return n;if("object"!=typeof n)throw"invalid huffman sequence"}return null}function m(t){for(var e=0;t>0;){var n=g();if(null===n)return;e=e<<1|n,t--}return e}function _(t){var e=m(t);return e>=1<<t-1?e:e+(-1<<t)+1}var w=0;var b,y=0;function x(t,e,n,r,i){var a=n%c,o=(n/c|0)*t.v+r,s=a*t.h+i;e(t,t.blocks[o][s])}function k(t,e,n){var 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R,C,L,B,D=0;for(C=1==j?i[0].blocksPerLine*i[0].blocksPerColumn:c*r.mcusPerColumn,a||(a=C);D<C;){for(S=0;S<j;S++)i[S].pred=0;if(w=0,1==j)for(E=i[0],T=0;T<a;T++)k(E,I,D),D++;else for(T=0;T<a;T++){for(S=0;S<j;S++)for(L=(E=i[S]).h,B=E.v,A=0;A<B;A++)for(M=0;M<L;M++)x(E,I,D,A,M);if(++D===C)break}if(d=0,(R=e[n]<<8|e[n+1])<65280)throw"marker was not found";if(!(R>=65488&&R<=65495))break;n+=2}return n-h}function h(t,l){var c,f,h=[],p=l.blocksPerLine,d=l.blocksPerColumn,g=p<<3,v=new Int32Array(64),m=new Uint8Array(64);function _(t,c,f){var h,p,d,g,v,m,_,w,b,y,x=l.quantizationTable,k=f;for(y=0;y<64;y++)k[y]=t[y]*x[y];for(y=0;y<8;++y){var E=8*y;0!=k[1+E]||0!=k[2+E]||0!=k[3+E]||0!=k[4+E]||0!=k[5+E]||0!=k[6+E]||0!=k[7+E]?(h=s*k[0+E]+128>>8,p=s*k[4+E]+128>>8,d=k[2+E],g=k[6+E],v=u*(k[1+E]-k[7+E])+128>>8,w=u*(k[1+E]+k[7+E])+128>>8,m=k[3+E]<<4,_=k[5+E]<<4,b=h-p+1>>1,h=h+p+1>>1,p=b,b=d*o+g*a+128>>8,d=d*a-g*o+128>>8,g=b,b=v-_+1>>1,v=v+_+1>>1,_=b,b=w+m+1>>1,m=w-m+1>>1,w=b,b=h-g+1>>1,h=h+g+1>>1,g=b,b=p-d+1>>1,p=p+d+1>>1,d=b,b=v*i+w*r+2048>>12,v=v*r-w*i+2048>>12,w=b,b=m*n+_*e+2048>>12,m=m*e-_*n+2048>>12,_=b,k[0+E]=h+w,k[7+E]=h-w,k[1+E]=p+_,k[6+E]=p-_,k[2+E]=d+m,k[5+E]=d-m,k[3+E]=g+v,k[4+E]=g-v):(b=s*k[0+E]+512>>10,k[0+E]=b,k[1+E]=b,k[2+E]=b,k[3+E]=b,k[4+E]=b,k[5+E]=b,k[6+E]=b,k[7+E]=b)}for(y=0;y<8;++y){var S=y;0!=k[8+S]||0!=k[16+S]||0!=k[24+S]||0!=k[32+S]||0!=k[40+S]||0!=k[48+S]||0!=k[56+S]?(h=s*k[0+S]+2048>>12,p=s*k[32+S]+2048>>12,d=k[16+S],g=k[48+S],v=u*(k[8+S]-k[56+S])+2048>>12,w=u*(k[8+S]+k[56+S])+2048>>12,m=k[24+S],_=k[40+S],b=h-p+1>>1,h=h+p+1>>1,p=b,b=d*o+g*a+2048>>12,d=d*a-g*o+2048>>12,g=b,b=v-_+1>>1,v=v+_+1>>1,_=b,b=w+m+1>>1,m=w-m+1>>1,w=b,b=h-g+1>>1,h=h+g+1>>1,g=b,b=p-d+1>>1,p=p+d+1>>1,d=b,b=v*i+w*r+2048>>12,v=v*r-w*i+2048>>12,w=b,b=m*n+_*e+2048>>12,m=m*e-_*n+2048>>12,_=b,k[0+S]=h+w,k[56+S]=h-w,k[8+S]=p+_,k[48+S]=p-_,k[16+S]=d+m,k[40+S]=d-m,k[24+S]=g+v,k[32+S]=g-v):(b=s*f[y+0]+8192>>14,k[0+S]=b,k[8+S]=b,k[16+S]=b,k[24+S]=b,k[32+S]=b,k[40+S]=b,k[48+S]=b,k[56+S]=b)}for(y=0;y<64;++y){var A=128+(k[y]+8>>4);c[y]=A<0?0:A>255?255:A}}for(var w=0;w<d;w++){var b=w<<3;for(c=0;c<8;c++)h.push(new Uint8Array(g));for(var y=0;y<p;y++){_(l.blocks[w][y],m,v);var x=0,k=y<<3;for(f=0;f<8;f++){var E=h[b+f];for(c=0;c<8;c++)E[k+c]=m[x++]}}}return h}function p(t){return t<0?0:t>255?255:t}return 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o,s,u=null,l=null,p=[],d=[],g=[],v=[],m=r();if(65496!=m)throw"SOI not found";for(m=r();65497!=m;){var _;switch(m){case 65280:break;case 65504:case 65505:case 65506:case 65507:case 65508:case 65509:case 65510:case 65511:case 65512:case 65513:case 65514:case 65515:case 65516:case 65517:case 65518:case 65519:case 65534:var w=i();65504===m&&74===w[0]&&70===w[1]&&73===w[2]&&70===w[3]&&0===w[4]&&(u={version:{major:w[5],minor:w[6]},densityUnits:w[7],xDensity:w[8]<<8|w[9],yDensity:w[10]<<8|w[11],thumbWidth:w[12],thumbHeight:w[13],thumbData:w.subarray(14,14+3*w[12]*w[13])}),65518===m&&65===w[0]&&100===w[1]&&111===w[2]&&98===w[3]&&101===w[4]&&0===w[5]&&(l={version:w[6],flags0:w[7]<<8|w[8],flags1:w[9]<<8|w[10],transformCode:w[11]});break;case 65499:for(var b=r()+n-2;n<b;){var y=e[n++],x=new Int32Array(64);if(y>>4==0)for(_=0;_<64;_++){x[t[_]]=e[n++]}else{if(y>>4!=1)throw"DQT: invalid table spec";for(_=0;_<64;_++){x[t[_]]=r()}}p[15&y]=x}break;case 65472:case 65473:case 65474:r(),(o={}).extended=65473===m,o.progressive=65474===m,o.precision=e[n++],o.scanLines=r(),o.samplesPerLine=r(),o.components={},o.componentsOrder=[];var k,E=e[n++];for(N=0;N<E;N++){k=e[n];var S=e[n+1]>>4,A=15&e[n+1],M=e[n+2];o.componentsOrder.push(k),o.components[k]={h:S,v:A,quantizationTable:p[M]},n+=3}a(o),d.push(o);break;case 65476:var T=r();for(N=2;N<T;){var I=e[n++],j=new Uint8Array(16),R=0;for(_=0;_<16;_++,n++)R+=j[_]=e[n];var C=new Uint8Array(R);for(_=0;_<R;_++,n++)C[_]=e[n];N+=17+R,(I>>4==0?v:g)[15&I]=c(j,C)}break;case 65501:r(),s=r();break;case 65498:r();var L=e[n++],B=[];for(N=0;N<L;N++){U=o.components[e[n++]];var D=e[n++];U.huffmanTableDC=v[D>>4],U.huffmanTableAC=g[15&D],B.push(U)}var z=e[n++],O=e[n++],F=e[n++],P=f(e,n,o,B,s,z,O,F>>4,15&F);n+=P;break;default:if(255==e[n-3]&&e[n-2]>=192&&e[n-2]<=254){n-=3;break}throw"unknown JPEG marker "+m.toString(16)}m=r()}if(1!=d.length)throw"only single frame JPEGs supported";this.width=o.samplesPerLine,this.height=o.scanLines,this.jfif=u,this.adobe=l,this.components=[];for(var N=0;N<o.componentsOrder.length;N++){var U=o.components[o.componentsOrder[N]];this.components.push({lines:h(0,U),scaleX:U.h/o.maxH,scaleY:U.v/o.maxV})}},getData:function(t,e){var n,r,i,a,o,s,u,l,c,f,h,d,g,v,m,_,w,b,y,x,k,E=this.width/t,S=this.height/e,A=0,M=t*e*this.components.length,T=new Uint8Array(M);switch(this.components.length){case 1:for(n=this.components[0],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],c=0;c<t;c++)h=o[0|c*n.scaleX*E],T[A++]=h;break;case 2:for(n=this.components[0],r=this.components[1],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],s=r.lines[0|f*r.scaleY*S],c=0;c<t;c++)h=o[0|c*n.scaleX*E],T[A++]=h,h=s[0|c*r.scaleX*E],T[A++]=h;break;case 3:for(k=!0,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),n=this.components[0],r=this.components[1],i=this.components[2],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],s=r.lines[0|f*r.scaleY*S],u=i.lines[0|f*i.scaleY*S],c=0;c<t;c++)k?(h=o[0|c*n.scaleX*E],d=s[0|c*r.scaleX*E],b=p(h+1.402*((g=u[0|c*i.scaleX*E])-128)),y=p(h-.3441363*(d-128)-.71413636*(g-128)),x=p(h+1.772*(d-128))):(b=o[0|c*n.scaleX*E],y=s[0|c*r.scaleX*E],x=u[0|c*i.scaleX*E]),T[A++]=b,T[A++]=y,T[A++]=x;break;case 4:if(!this.adobe)throw"Unsupported color mode (4 components)";for(k=!1,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),n=this.components[0],r=this.components[1],i=this.components[2],a=this.components[3],f=0;f<e;f++)for(o=n.lines[0|f*n.scaleY*S],s=r.lines[0|f*r.scaleY*S],u=i.lines[0|f*i.scaleY*S],l=a.lines[0|f*a.scaleY*S],c=0;c<t;c++)k?(h=o[0|c*n.scaleX*E],d=s[0|c*r.scaleX*E],g=u[0|c*i.scaleX*E],v=l[0|c*a.scaleX*E],m=255-p(h+1.402*(g-128)),_=255-p(h-.3441363*(d-128)-.71413636*(g-128)),w=255-p(h+1.772*(d-128))):(m=o[0|c*n.scaleX*E],_=s[0|c*r.scaleX*E],w=u[0|c*i.scaleX*E],v=l[0|c*a.scaleX*E]),T[A++]=m,T[A++]=_,T[A++]=w,T[A++]=v;break;default:throw"Unsupported color mode"}return T},copyToImageData:function(t){var e,n,r,i,a,o,s,u,l,c=t.width,f=t.height,h=t.data,d=this.getData(c,f),g=0,v=0;switch(this.components.length){case 1:for(n=0;n<f;n++)for(e=0;e<c;e++)r=d[g++],h[v++]=r,h[v++]=r,h[v++]=r,h[v++]=255;break;case 3:for(n=0;n<f;n++)for(e=0;e<c;e++)s=d[g++],u=d[g++],l=d[g++],h[v++]=s,h[v++]=u,h[v++]=l,h[v++]=255;break;case 4:for(n=0;n<f;n++)for(e=0;e<c;e++)a=d[g++],o=d[g++],r=d[g++],s=255-p(a*(1-(i=d[g++])/255)+i),u=255-p(o*(1-i/255)+i),l=255-p(r*(1-i/255)+i),h[v++]=s,h[v++]=u,h[v++]=l,h[v++]=255;break;default:throw"Unsupported color mode"}}},l}();e.exports=function(e){var r=new Uint8Array(e),i=new n;i.parse(r);for(var a=i.getData(i.width,i.height),o=new t(i.width*i.height*4),s=0,u=0;u<o.length;u++)o[u+(u/3|0)]=a[s++],u%4==3&&(o[u]=255);return{data:o,width:i.width,height:i.height}}}).call(this,t("buffer").Buffer)},{buffer:4}],106:[function(t,e,n){(function(t){function n(e){Math.round;var n,r,i,a,o,s=Math.floor,u=new Array(64),l=new Array(64),c=new Array(64),f=new Array(64),h=new Array(65535),p=new Array(65535),d=new Array(64),g=new Array(64),v=[],m=0,_=7,w=new Array(64),b=new Array(64),y=new Array(64),x=new Array(256),k=new Array(2048),E=[0,1,5,6,14,15,27,28,2,4,7,13,16,26,29,42,3,8,12,17,25,30,41,43,9,11,18,24,31,40,44,53,10,19,23,32,39,45,52,54,20,22,33,38,46,51,55,60,21,34,37,47,50,56,59,61,35,36,48,49,57,58,62,63],S=[0,0,1,5,1,1,1,1,1,1,0,0,0,0,0,0,0],A=[0,1,2,3,4,5,6,7,8,9,10,11],M=[0,0,2,1,3,3,2,4,3,5,5,4,4,0,0,1,125],T=[1,2,3,0,4,17,5,18,33,49,65,6,19,81,97,7,34,113,20,50,129,145,161,8,35,66,177,193,21,82,209,240,36,51,98,114,130,9,10,22,23,24,25,26,37,38,39,40,41,42,52,53,54,55,56,57,58,67,68,69,70,71,72,73,74,83,84,85,86,87,88,89,90,99,100,101,102,103,104,105,106,115,116,117,118,119,120,121,122,131,132,133,134,135,136,137,138,146,147,148,149,150,151,152,153,154,162,163,164,165,166,167,168,169,170,178,179,180,181,182,183,184,185,186,194,195,196,197,198,199,200,201,202,210,211,212,213,214,215,216,217,218,225,226,227,228,229,230,231,232,233,234,241,242,243,244,245,246,247,248,249,250],I=[0,0,3,1,1,1,1,1,1,1,1,1,0,0,0,0,0],j=[0,1,2,3,4,5,6,7,8,9,10,11],R=[0,0,2,1,2,4,4,3,4,7,5,4,4,0,1,2,119],C=[0,1,2,3,17,4,5,33,49,6,18,65,81,7,97,113,19,34,50,129,8,20,66,145,161,177,193,9,35,51,82,240,21,98,114,209,10,22,36,52,225,37,241,23,24,25,26,38,39,40,41,42,53,54,55,56,57,58,67,68,69,70,71,72,73,74,83,84,85,86,87,88,89,90,99,100,101,102,103,104,105,106,115,116,117,118,119,120,121,122,130,131,132,133,134,135,136,137,138,146,147,148,149,150,151,152,153,154,162,163,164,165,166,167,168,169,170,178,179,180,181,182,183,184,185,186,194,195,196,197,198,199,200,201,202,210,211,212,213,214,215,216,217,218,226,227,228,229,230,231,232,233,234,242,243,244,245,246,247,248,249,250];function L(t,e){for(var n=0,r=0,i=new Array,a=1;a<=16;a++){for(var o=1;o<=t[a];o++)i[e[r]]=[],i[e[r]][0]=n,i[e[r]][1]=a,r++,n++;n*=2}return i}function B(t){for(var e=t[0],n=t[1]-1;n>=0;)e&1<<n&&(m|=1<<_),n--,--_<0&&(255==m?(D(255),D(0)):D(m),_=7,m=0)}function D(t){v.push(t)}function z(t){D(t>>8&255),D(255&t)}function O(t,e,n,r,i){var a,o=i[0],s=i[240];for(var u=function(t,e){var n,r,i,a,o,s,u,l,c,f,h=0;for(c=0;c<8;++c){n=t[h],r=t[h+1],i=t[h+2],a=t[h+3],o=t[h+4],s=t[h+5],u=t[h+6];var p=n+(l=t[h+7]),g=n-l,v=r+u,m=r-u,_=i+s,w=i-s,b=a+o,y=a-o,x=p+b,k=p-b,E=v+_,S=v-_;t[h]=x+E,t[h+4]=x-E;var A=.707106781*(S+k);t[h+2]=k+A,t[h+6]=k-A;var M=.382683433*((x=y+w)-(S=m+g)),T=.5411961*x+M,I=1.306562965*S+M,j=.707106781*(E=w+m),R=g+j,C=g-j;t[h+5]=C+T,t[h+3]=C-T,t[h+1]=R+I,t[h+7]=R-I,h+=8}for(h=0,c=0;c<8;++c){n=t[h],r=t[h+8],i=t[h+16],a=t[h+24],o=t[h+32],s=t[h+40],u=t[h+48];var L=n+(l=t[h+56]),B=n-l,D=r+u,z=r-u,O=i+s,F=i-s,P=a+o,N=a-o,U=L+P,q=L-P,V=D+O,Z=D-O;t[h]=U+V,t[h+32]=U-V;var W=.707106781*(Z+q);t[h+16]=q+W,t[h+48]=q-W;var G=.382683433*((U=N+F)-(Z=z+B)),H=.5411961*U+G,Y=1.306562965*Z+G,X=.707106781*(V=F+z),$=B+X,K=B-X;t[h+40]=K+H,t[h+24]=K-H,t[h+8]=$+Y,t[h+56]=$-Y,h++}for(c=0;c<64;++c)f=t[c]*e[c],d[c]=f>0?f+.5|0:f-.5|0;return d}(t,e),l=0;l<64;++l)g[E[l]]=u[l];var c=g[0]-n;n=g[0],0==c?B(r[0]):(B(r[p[a=32767+c]]),B(h[a]));for(var f=63;f>0&&0==g[f];f--);if(0==f)return B(o),n;for(var v,m=1;m<=f;){for(var _=m;0==g[m]&&m<=f;++m);var w=m-_;if(w>=16){v=w>>4;for(var b=1;b<=v;++b)B(s);w&=15}a=32767+g[m],B(i[(w<<4)+p[a]]),B(h[a]),m++}return 63!=f&&B(o),n}function F(t){if(t<=0&&(t=1),t>100&&(t=100),o!=t){(function(t){for(var e=[16,11,10,16,24,40,51,61,12,12,14,19,26,58,60,55,14,13,16,24,40,57,69,56,14,17,22,29,51,87,80,62,18,22,37,56,68,109,103,77,24,35,55,64,81,104,113,92,49,64,78,87,103,121,120,101,72,92,95,98,112,100,103,99],n=0;n<64;n++){var r=s((e[n]*t+50)/100);r<1?r=1:r>255&&(r=255),u[E[n]]=r}for(var i=[17,18,24,47,99,99,99,99,18,21,26,66,99,99,99,99,24,26,56,99,99,99,99,99,47,66,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99],a=0;a<64;a++){var o=s((i[a]*t+50)/100);o<1?o=1:o>255&&(o=255),l[E[a]]=o}for(var h=[1,1.387039845,1.306562965,1.175875602,1,.785694958,.5411961,.275899379],p=0,d=0;d<8;d++)for(var g=0;g<8;g++)c[p]=1/(u[E[p]]*h[d]*h[g]*8),f[p]=1/(l[E[p]]*h[d]*h[g]*8),p++})(t<50?Math.floor(5e3/t):Math.floor(200-2*t)),o=t}}this.encode=function(e,o){(new Date).getTime();o&&F(o),v=new Array,m=0,_=7,z(65496),z(65504),z(16),D(74),D(70),D(73),D(70),D(0),D(1),D(1),D(0),z(1),z(1),D(0),D(0),function(){z(65499),z(132),D(0);for(var t=0;t<64;t++)D(u[t]);D(1);for(var e=0;e<64;e++)D(l[e])}(),function(t,e){z(65472),z(17),D(8),z(e),z(t),D(3),D(1),D(17),D(0),D(2),D(17),D(1),D(3),D(17),D(1)}(e.width,e.height),function(){z(65476),z(418),D(0);for(var t=0;t<16;t++)D(S[t+1]);for(var e=0;e<=11;e++)D(A[e]);D(16);for(var n=0;n<16;n++)D(M[n+1]);for(var r=0;r<=161;r++)D(T[r]);D(1);for(var i=0;i<16;i++)D(I[i+1]);for(var a=0;a<=11;a++)D(j[a]);D(17);for(var o=0;o<16;o++)D(R[o+1]);for(var s=0;s<=161;s++)D(C[s])}(),z(65498),z(12),D(3),D(1),D(0),D(2),D(17),D(3),D(17),D(0),D(63),D(0);var s=0,h=0,p=0;m=0,_=7,this.encode.displayName="_encode_";for(var d,g,x,E,L,P,N,U,q,V=e.data,Z=e.width,W=e.height,G=4*Z,H=0;H<W;){for(d=0;d<G;){for(P=L=G*H+d,N=-1,U=0,q=0;q<64;q++)P=L+(U=q>>3)*G+(N=4*(7&q)),H+U>=W&&(P-=G*(H+1+U-W)),d+N>=G&&(P-=d+N-G+4),g=V[P++],x=V[P++],E=V[P++],w[q]=(k[g]+k[x+256>>0]+k[E+512>>0]>>16)-128,b[q]=(k[g+768>>0]+k[x+1024>>0]+k[E+1280>>0]>>16)-128,y[q]=(k[g+1280>>0]+k[x+1536>>0]+k[E+1792>>0]>>16)-128;s=O(w,c,s,n,i),h=O(b,f,h,r,a),p=O(y,f,p,r,a),d+=32}H+=8}if(_>=0){var Y=[];Y[1]=_+1,Y[0]=(1<<_+1)-1,B(Y)}return z(65497),new t(v)},function(){(new Date).getTime();e||(e=50),function(){for(var t=String.fromCharCode,e=0;e<256;e++)x[e]=t(e)}(),n=L(S,A),r=L(I,j),i=L(M,T),a=L(R,C),function(){for(var t=1,e=2,n=1;n<=15;n++){for(var r=t;r<e;r++)p[32767+r]=n,h[32767+r]=[],h[32767+r][1]=n,h[32767+r][0]=r;for(var i=-(e-1);i<=-t;i++)p[32767+i]=n,h[32767+i]=[],h[32767+i][1]=n,h[32767+i][0]=e-1+i;t<<=1,e<<=1}}(),function(){for(var t=0;t<256;t++)k[t]=19595*t,k[t+256>>0]=38470*t,k[t+512>>0]=7471*t+32768,k[t+768>>0]=-11059*t,k[t+1024>>0]=-21709*t,k[t+1280>>0]=32768*t+8421375,k[t+1536>>0]=-27439*t,k[t+1792>>0]=-5329*t}(),F(e),(new Date).getTime()}()}e.exports=function(t,e){void 0===e&&(e=50);return{data:new n(e).encode(t,e),width:t.width,height:t.height}}}).call(this,t("buffer").Buffer)},{buffer:4}],107:[function(t,e,n){(function(n){"use strict";var r=t("contentstream"),i=t("gif-encoder"),a=t("jpeg-js"),o=t("pngjs-nozlib").PNG,s=t("ndarray"),u=t("ndarray-ops"),l=t("through");function c(t,e,n){if(4===t.shape.length)return c(t.pick(n),e,0);if(3===t.shape.length)if(3===t.shape[2])u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),t),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255);else if(4===t.shape[2])u.assign(s(e,[t.shape[0],t.shape[1],4],[4,4*t.shape[0],1]),t);else{if(1!==t.shape[2])return new Error("Incompatible array shape");u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),s(t.data,[t.shape[0],t.shape[1],3],[t.stride[0],t.stride[1],0],t.offset)),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255)}else{if(2!==t.shape.length)return new Error("Incompatible array shape");u.assign(s(e,[t.shape[0],t.shape[1],3],[4,4*t.shape[0],1]),s(t.data,[t.shape[0],t.shape[1],3],[t.stride[0],t.stride[1],0],t.offset)),u.assigns(s(e,[t.shape[0]*t.shape[1]],[4],3),255)}return e}function f(t){var e=l();return e.emit("error",t),e}e.exports=function(t,e,s){switch(s=s||{},e.toUpperCase()){case"JPG":case".JPG":case"JPEG":case".JPEG":case"JPE":case".JPE":var u=t.shape[0],l=t.shape[1],h={data:g=c(t,g=new n(u*l*4)),width:u,height:l},p=a.encode(h,s.quality);return new r(p.data);case"GIF":case".GIF":var d=4===t.shape.length?t.shape[0]:1,g=(u=4===t.shape.length?t.shape[1]:t.shape[0],l=4===t.shape.length?t.shape[2]:t.shape[1],new n(u*l*4)),v=new i(u,l);v.writeHeader();for(var m=0;m<d;m++)g=c(t,g,m),v.addFrame(g);return v.finish(),v;case"PNG":case".PNG":var _=new o({width:t.shape[0],height:t.shape[1]});return"Error"==typeof(g=c(t,_.data))?f(g):(_.data=g,_.pack());case"CANVAS":var w=document.createElement("canvas"),b=w.getContext("2d");w.width=t.shape[0],w.height=t.shape[1];var y=b.getImageData(0,0,w.width,w.height);return"Error"==typeof(g=c(t,g=y.data))?f(g):(b.putImageData(y,0,0),w);default:return f(new Error("Unsupported file type: "+e))}}}).call(this,t("buffer").Buffer)},{buffer:4,contentstream:7,"gif-encoder":25,"jpeg-js":104,ndarray:67,"ndarray-ops":64,"pngjs-nozlib":91,through:123}],108:[function(t,e,n){e.exports=i;var r=t("events").EventEmitter;function i(){r.call(this)}t("inherits")(i,r),i.Readable=t("readable-stream/readable.js"),i.Writable=t("readable-stream/writable.js"),i.Duplex=t("readable-stream/duplex.js"),i.Transform=t("readable-stream/transform.js"),i.PassThrough=t("readable-stream/passthrough.js"),i.Stream=i,i.prototype.pipe=function(t,e){var n=this;function i(e){t.writable&&!1===t.write(e)&&n.pause&&n.pause()}function a(){n.readable&&n.resume&&n.resume()}n.on("data",i),t.on("drain",a),t._isStdio||e&&!1===e.end||(n.on("end",s),n.on("close",u));var o=!1;function s(){o||(o=!0,t.end())}function u(){o||(o=!0,"function"==typeof t.destroy&&t.destroy())}function l(t){if(c(),0===r.listenerCount(this,"error"))throw t}function c(){n.removeListener("data",i),t.removeListener("drain",a),n.removeListener("end",s),n.removeListener("close",u),n.removeListener("error",l),t.removeListener("error",l),n.removeListener("end",c),n.removeListener("close",c),t.removeListener("close",c)}return n.on("error",l),t.on("error",l),n.on("end",c),n.on("close",c),t.on("close",c),t.emit("pipe",n),t}},{events:40,inherits:53,"readable-stream/duplex.js":109,"readable-stream/passthrough.js":118,"readable-stream/readable.js":119,"readable-stream/transform.js":120,"readable-stream/writable.js":121}],109:[function(t,e,n){e.exports=t("./lib/_stream_duplex.js")},{"./lib/_stream_duplex.js":110}],110:[function(t,e,n){"use strict";var r=t("process-nextick-args"),i=Object.keys||function(t){var e=[];for(var n in t)e.push(n);return e};e.exports=f;var a=t("core-util-is");a.inherits=t("inherits");var o=t("./_stream_readable"),s=t("./_stream_writable");a.inherits(f,o);for(var u=i(s.prototype),l=0;l<u.length;l++){var c=u[l];f.prototype[c]||(f.prototype[c]=s.prototype[c])}function f(t){if(!(this instanceof f))return new 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i=ImageSequencer({ui:!1});if(window.hasOwnProperty("$"))var a=$(e);else a=document.querySelectorAll(e);for(var o=[],s=0;s<a.length;s++)a[s]instanceof HTMLImageElement&&o.push(a[s]);function u(t,e){var n=t.src,r=n.split("?")[0].split(".").pop(),a=new XMLHttpRequest;function o(n){i.loadImage(n,function(){this.addSteps(e).run({stop:function(){}},function(e){t.src=e})})}a.open("GET",n,!0),a.responseType="arraybuffer",a.onload=function(t){var e,n,i,a=new Uint8Array(this.response),s="";for(e=0,n=a.length;e<n;e+=5e3)i=a.subarray(e,e+5e3),s+=String.fromCharCode.apply(null,i);var u=btoa(s);o("data:image/"+r+";base64,"+u)},"data:image/"!=n.substr(0,11).toLowerCase()?a.send():o(n)}for(s=0;s<o.length;s++)u(o[s],n),s==o.length-1&&r.callback()}},{}],139:[function(t,e,n){e.exports=function(t,e,n,r){return r||(r={stop:function(){}}),function(e){var i=[];for(var a in e)for(var o=t.images[a].steps.length,s=e[a],u=0;u<o-s;u++)i.push({image:a,i:s+u});!function e(i,a){if(a==i.length&&void 0!==i[a-1]){var o=i[a-1].image;if("Function"==t.objTypeOf(n)){var s=t.images[o].steps,u=s[s.length-1].output.src;return n(u),!0}}if(void 0!==i[a]){o=i[a].image;var l=i[a].i,c=t.images[o].steps[l-1].output;t.images[o].steps[l].draw(t.copy(c),function(){e(i,++a)},r)}}(i,0)}(e=function(e){for(var n in e)0==e[n]&&1==t.images[n].steps.length?delete e[n]:0==e[n]&&e[n]++;for(var n in e)for(var r=t.images[n].steps[e[n]-1];void 0===r||void 0===r.output;)r=t.images[n].steps[--e[n]-1];return e}(e))}},{}],140:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,n.onSetup(e.step),e.step.metadata=e.step.metadata||{},{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[t,e,n,r]},extraManipulation:function(t){for(var n=[0,0,0,0],r=0;r<t.data.length;r+=4)n[0]+=t.data[r+0],n[1]+=t.data[r+1],n[2]+=t.data[r+2],n[3]+=t.data[r+3];for(n[0]=parseInt(n[0]/(t.data.length/4)),n[1]=parseInt(n[1]/(t.data.length/4)),n[2]=parseInt(n[2]/(t.data.length/4)),n[3]=parseInt(n[3]/(t.data.length/4)),r=0;r<t.data.length;r+=4)t.data[r+0]=n[0],t.data[r+1]=n[1],t.data[r+2]=n[2],t.data[r+3]=n[3];return e.step.metadata.averages=n,console.log("average: ",n),e.step.inBrowser&&e.step.ui&&$(e.step.ui).find(".details").append("<p><b>Averages</b> (r, g, b, a): "+n.join(", ")+"</p>"),t},format:r.format,image:e.image,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],141:[function(t,e,n){e.exports={name:"Average",description:"Average all pixel color",inputs:{}}},{}],142:[function(require,module,exports){module.exports=function Dynamic(options,UI,util){var output;function draw(input,callback,progressObj){progressObj.stop(!0),progressObj.overrideFlag=!0,UI.onDraw(options.step);var step=this;"string"==typeof options.func&&eval("options.func = "+options.func);var getPixels=require("get-pixels"),priorStep=getStep(-2);getPixels(priorStep.output.src,function(t,e){return options.firstImagePixels=e,require("../_nomodule/PixelManipulation.js")(input,{output:function(t,e,n){step.output={src:e,format:n},options.step.output=e,UI.onComplete(options.step)},changePixel:function(t,e,n,r,i,a){var o=options.firstImagePixels;return options.func(t,e,n,r,o.get(i,a,0),o.get(i,a,1),o.get(i,a,2),o.get(i,a,3))},format:input.format,image:options.image,inBrowser:options.inBrowser,callback:callback})})}return options=options||{},options.func=options.func||"function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }",UI.onSetup(options.step),{options:options,draw:draw,output:output,UI:UI}}},{"../_nomodule/PixelManipulation.js":173,"get-pixels":23}],143:[function(t,e,n){e.exports={name:"Blend",description:"Blend the past two 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:{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 ] }"}}}},{}],144:[function(t,e,n){e.exports=function(t,e){let n=[[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=function(t){let e=[];for(let n=t.length-1;n>=0;n--){let r=[];for(let e=t[n].length-1;e>=0;e--)r.push(t[n][e]);e.push(r)}return e}(n);var r=t;for(let e=0;e<t.shape[0];e++)for(let a=0;a<t.shape[1];a++){let o=i([e,a]),s=[0,0,0,0];for(let t=0;t<n.length;t++)for(let e=0;e<n.length;e++)s[0]+=r.get(o[t][e][0],o[t][e][1],0)*n[t][e],s[1]+=r.get(o[t][e][0],o[t][e][1],1)*n[t][e],s[2]+=r.get(o[t][e][0],o[t][e][1],2)*n[t][e],s[3]+=r.get(o[t][e][0],o[t][e][1],3)*n[t][e];t.set(e,a,0,s[0]),t.set(e,a,1,s[1]),t.set(e,a,2,s[2])}return t;function i(t){let e=t[0],n=t[1],r=[];for(let t=-2;t<=2;t++){let i=[];for(let r=-2;r<=2;r++)i.push([e+t,n+r]);r.push(i)}return r}}},{}],145:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[t,e,n,r]},extraManipulation:function(n){return n=t("./Blur")(n,e.blur)},format:r.format,image:e.image,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173,"./Blur":144}],146:[function(t,e,n){e.exports={name:"Blur",description:"Gaussian blur an image by a given value, typically 0-5",inputs:{blur:{type:"integer",desc:"amount of gaussian blur(Less blur gives more detail, typically 0-5)",default:2}}}},{}],147:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){var a=e.brightness/100;return[t=a*t<255?a*t:255,n=a*n<255?a*n:255,r=a*r<255?a*r:255,i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],148:[function(t,e,n){e.exports={name:"Brightness",description:"Change the brightness of the image by given percent value",inputs:{brightness:{type:"integer",desc:"% brightness for the new image",default:0}}}},{}],149:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).channel=e.channel||"green",n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){return"red"==e.channel?[t,0,0,i]:"green"==e.channel?[0,n,0,i]:"blue"==e.channel?[0,0,r,i]:void 0},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],150:[function(t,e,n){e.exports={name:"Channel",description:"Displays only one color channel of an image -- default is green",inputs:{channel:{type:"select",desc:"Color channel",default:"green",values:["red","green","blue"]}}}},{}],151:[function(t,e,n){function r(t){return function(e){var n,r,i,a,o,s,u,l,c,f,h,p,d,g;if(s=(h=[0,0])[0],u=h[1],a=(p=[t[0][0],1])[1],e<(i=p[0]))return s;for(n=l=0,f=t.length;l<f;n=++l){if(o=(d=t[n])[0],s=d[1],u=d[2],i=o,n===t.length-1){a=1;break}if(a=t[n+1][0],o<=e&&e<a)break}for(r=[],n=c=0,g=s.length;0<=g?c<g:c>g;n=0<=g?++c:--c)r[n]=(e-i)/(a-i)*(u[n]-s[n])+s[n];return r}}e.exports=function(t,e){return e.colormap=e.colormap||i.default,"object"==typeof e.colormap?colormapFunction=r(e.colormap):i.hasOwnProperty(e.colormap)?colormapFunction=i[e.colormap]:colormapFunction=i.default,colormapFunction(t/255)};var i={greyscale:r([[0,[0,0,0],[255,255,255]],[1,[255,255,255],[255,255,255]]]),default:r([[0,[0,0,255],[0,255,0]],[.25,[0,255,0],[255,255,0]],[.5,[0,255,255],[255,255,0]],[.75,[255,255,0],[255,0,0]]]),ndvi:r([[0,[0,0,255],[38,195,195]],[.5,[0,150,0],[255,255,0]],[.75,[255,255,0],[255,50,50]]]),stretched:r([[0,[0,0,255],[0,0,255]],[.1,[0,0,255],[38,195,195]],[.5,[0,150,0],[255,255,0]],[.7,[255,255,0],[255,50,50]],[.9,[255,50,50],[255,50,50]]]),fastie:r([[0,[255,255,255],[0,0,0]],[.167,[0,0,0],[255,255,255]],[.33,[255,255,255],[0,0,0]],[.5,[0,0,0],[140,140,255]],[.55,[140,140,255],[0,255,0]],[.63,[0,255,0],[255,255,0]],[.75,[255,255,0],[255,0,0]],[.95,[255,0,0],[255,0,255]]])}},{}],152:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(n,r,i,a){var o=(n+r+i)/3,s=t("./Colormap")(o,e);return[s[0],s[1],s[2],255]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173,"./Colormap":151}],153:[function(t,e,n){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","stretched","fastie"]}}}},{}],154:[function(t,e,n){(function(n){e.exports=function(e,r,i){var a=t("get-pixels"),o=t("save-pixels");r.x=parseInt(r.x)||0,r.y=parseInt(r.y)||0,a(e.src,function(t,a){r.w=parseInt(r.w)||Math.floor(.5*a.shape[0]),r.h=parseInt(r.h)||Math.floor(.5*a.shape[1]);for(var s=r.x,u=r.y,l=r.w,c=r.h,f=a.shape[0],h=new Uint8Array(4*l*c),p=u;p<u+c;p++)h.set(a.data.slice(4*p*f+s,4*p*f+s+4*l),4*l*(p-u));a.data=h,a.shape=[l,c,4],a.stride[1]=4*l,r.format=e.format;var d=[],g=0,v=o(a,r.format);v.on("data",function(t){g+=t.length,d.push(t)}),v.on("end",function(){var t=n.concat(d,g).toString("base64"),e="data:image/"+r.format+";base64,"+t;i(e,r.format)})})}}).call(this,t("buffer").Buffer)},{buffer:4,"get-pixels":23,"save-pixels":107}],155:[function(t,e,n){e.exports=function(e,n){if(e=e||{},n.onSetup(e.step),e.step.inBrowser)var r=t("./Ui.js")(e.step,n);var i=!1;return{options:e,draw:function(a,o){n.onDraw(e.step);var s=this;e.step.input=a.src,t("./Crop")(a,e,function(t,a){s.output={src:t,format:a},e.step.output=t,n.onComplete(e.step),r&&r.hide&&r.hide(),!1===i&&e.step.inBrowser&&(i=!0,r.setup()),o()})},output:void 0,UI:n}}},{"./Crop":154,"./Ui.js":156}],156:[function(t,e,n){e.exports=function(t,e){let n=0,r=0;function i(){return t.imgElement}function a(t,e,n,r){let a=$($(i()).parents()[2]).find("input");a[0].value=t,a[1].value=e,a[2].value=n,a[3].value=r}return{setup:function(){t.imgElement.src=t.input,n=Math.floor(i().naturalWidth),r=Math.floor(i().naturalHeight),a(0,0,n,r),$(i()).imgAreaSelect({handles:!0,x1:0,y1:0,x2:0+n/2,y2:0+r/2,onSelectEnd:function(t,e){let o=function(t,e,a,o){let s=$(i()).width(),u=$(i()).height();return[Math.floor(t/s*n),Math.floor(e/u*r),Math.floor(a/s*n),Math.floor(o/u*r)]}(e.x1,e.y1,e.width,e.height);a(o[0],o[1],o[2],o[3])}})},remove:function(){$(i()).imgAreaSelect({remove:!0})},hide:function(){$(i()).imgAreaSelect({hide:!0})}}}},{}],157:[function(t,e,n){e.exports={name:"Crop",description:"Crop image to given x, y, w, h in pixels, measured from top left",url:"https://github.com/publiclab/image-sequencer/tree/master/MODULES.md",inputs:{x:{type:"integer",desc:"X-position (measured from left) from where cropping starts",default:0},y:{type:"integer",desc:"Y-position (measured from top) from where cropping starts",default:0},w:{type:"integer",desc:"Width of crop",default:"(50%)"},h:{type:"integer",desc:"Height of crop",default:"(50%)"}}}},{}],158:[function(t,e,n){e.exports=function(e,n){e=e||{},n.onSetup(e.step);var r=t("jsqr"),i=t("get-pixels");return{options:e,draw:function(t,a){n.onDraw(e.step);var o=this;i(t.src,function(i,s){if(i)throw i;var u=s.shape[0],l=s.shape[1],c=r.decodeQRFromImage(s.data,u,l);o.output=t,o.output.data=c,a(),e.step.output=t.src,e.step.qrval=c,n.onComplete(e.step)})},output:void 0,UI:n}}},{"get-pixels":23,jsqr:57}],159:[function(t,e,n){e.exports={name:"Decode QR",description:"Search for and decode a QR code in the image",inputs:{},outputs:{qrval:{type:"text"}}}},{}],160:[function(require,module,exports){module.exports=function Dynamic(options,UI){var output;function draw(input,callback,progressObj){progressObj.stop(!0),progressObj.overrideFlag=!0,UI.onDraw(options.step);var step=this;function generator(expression){var func="f = function (r, g, b, a) { var R = r, G = g, B = b, A = a;",f;return func+="return ",func=func+expression+"}",eval(func),f}options.monochrome=options.monochrome||"(R+G+B)/3";var channels=["red","green","blue","alpha"];function changePixel(t,e,n,r){return[options.red_function(t,e,n,r),options.green_function(t,e,n,r),options.blue_function(t,e,n,r),options.alpha_function(t,e,n,r)]}function getNeighbourPixel(t,e,n,r,i){return[t.get(e+r,n+i,0),t.get(e+r,n+i,1),t.get(e+r,n+i,2),t.get(e+r,n+i,3)]}function output(t,e,n){step.output={src:e,format:n},options.step.output=e,UI.onComplete(options.step)}return channels.forEach(function(t){options.hasOwnProperty(t)?options[t+"_function"]=generator(options[t]):"alpha"===t?options.alpha_function=function(){return 255}:options[t+"_function"]=generator(options.monochrome)}),require("../_nomodule/PixelManipulation.js")(input,{output:output,changePixel:changePixel,getNeighbourPixel:getNeighbourPixel,getNeighborPixel:getNeighbourPixel,format:input.format,image:options.image,inBrowser:options.inBrowser,callback:callback})}return options=options||{},UI.onSetup(options.step),{options:options,draw:draw,output:output,UI:UI}}},{"../_nomodule/PixelManipulation.js":173}],161:[function(t,e,n){e.exports={name:"Dynamic",description:"A module which accepts JavaScript math expressions to produce each color channel based on the original image's color. See <a href='https://publiclab.org/wiki/infragram-sandbox'>Infragrammar</a>.",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"}}}},{}],162:[function(t,e,n){const r=t("lodash"),i=[[-1,0,1],[-2,0,2],[-1,0,1]],a=[[-1,-2,-1],[0,0,0],[1,2,1]];let o,s=[],u=[],l=[],c=[];function f(t,e,n,r,o){let s=0;for(let e=0;e<3;e++)for(let n=0;n<3;n++){let a=r+e-1,u=o+n-1;s+=t.get(a,u,0)*i[e][n]}let u=0;for(let e=0;e<3;e++)for(let n=0;n<3;n++){let i=r+e-1,s=o+n-1;u+=t.get(i,s,0)*a[e][n]}return{pixel:[e,e,e,Math.sqrt(Math.pow(s,2)+Math.pow(u,2))],angle:Math.atan2(u,s)}}e.exports=function(t,e,n,i){o=!i;for(var a=0;a<t.shape[0];a++){s.push([]),u.push([]);for(var d=0;d<t.shape[1];d++){var g=f(t,t.get(a,d,0),t.get(a,d,3),a,d);let e=g.pixel;t.set(a,d,0,e[0]),t.set(a,d,1,e[1]),t.set(a,d,2,e[2]),t.set(a,d,3,e[3]),u.slice(-1)[0].push(e[3]),s.slice(-1)[0].push(g.angle)}}return function(t){function e(t){let e=t[0],n=t[1];return[[e+1,n+1],[e+1,n],[e+1,n-1],[e,n+1],[e,n-1],[e-1,n+1],[e-1,n],[e-1,n-1]]}for(weakPixel in c){let n=e(c[weakPixel]);for(pixel in n)if(l.find(t=>r.isEqual(t,n[pixel]))){t.set(weakPixel[0],weakPixel[1],3,255),c.splice(weakPixel,weakPixel);break}}return c.forEach(e=>t.set(e[0],e[1],3,0)),t}(function(t,e,n){const r=.2*p(u),i=r*n;for(let e=0;e<t.shape[0];e++)for(let n=0;n<t.shape[1];n++){let a=[e,n];u[e][n]>i?u[e][n]>r?l.push(a):c.push(a):t.set(e,n,3,0)}return l.forEach(e=>t.set(e[0],e[1],3,255)),t}(function(t){s=s.map(t=>t.map(h));for(let e=1;e<t.shape[0]-1;e++)for(let n=1;n<t.shape[1]-1;n++){let r=s[e][n];t.get(e,n);r>=-22.5&&r<=22.5||r<-157.5&&r>=-180?u[e][n]>=u[e][n+1]&&u[e][n]>=u[e][n-1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):r>=22.5&&r<=67.5||r<-112.5&&r>=-157.5?u[e][n]>=u[e+1][n+1]&&u[e][n]>=u[e-1][n-1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):r>=67.5&&r<=112.5||r<-67.5&&r>=-112.5?u[e][e]>=u[e+1][n]&&u[e][n]>=u[e][n]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0):(r>=112.5&&r<=157.5||r<-22.5&&r>=-67.5)&&(u[e][n]>=u[e+1][n-1]&&u[e][n]>=u[e-1][n+1]?t.set(e,n,3,u[e][n]):t.set(e,n,3,0))}return t}(t),0,n))};var h=t=>180*t/Math.PI,p=t=>Math.max(...t.map(t=>t.map(t=>t||0)).map(t=>Math.max(...t)))},{lodash:58}],163:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).blur=e.blur||2,e.highThresholdRatio=e.highThresholdRatio||.2,e.lowThresholdRatio=e.lowThresholdRatio||.15,n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[(t+e+n)/3,(t+e+n)/3,(t+e+n)/3,r]},extraManipulation:function(n){return n=t("ndarray-gaussian-filter")(n,e.blur),t("./EdgeUtils")(n,e.highThresholdRatio,e.lowThresholdRatio,e.inBrowser)},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173,"./EdgeUtils":162,"ndarray-gaussian-filter":63}],164:[function(t,e,n){e.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 at: https://en.wikipedia.org/wiki/Canny_edge_detector",inputs:{blur:{type:"integer",desc:"amount of gaussian blur(Less blur gives more detail, typically 0-5)",default:2},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}}}},{}],165:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),t("fisheyegl"),{options:e,draw:function(t,r){n.onDraw(e.step);var i=this;if(e.inBrowser){if(document.querySelector("#image-sequencer-canvas"))var a=document.querySelector("#image-sequencer-canvas");else(a=document.createElement("canvas")).style.display="none",a.setAttribute("id","image-sequencer-canvas"),document.body.append(a);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(){i.output={src:a.toDataURL(),format:t.format},e.step.output=i.output.src,r(),n.onComplete(e.step)})}else this.output=t,r()},output:void 0,UI:n}}},{fisheyegl:15}],166:[function(t,e,n){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:"Patht to a WebGL fragment shader file",default:"(inbuilt)"},vertexSrc:{type:"PATH",desc:"Patht to a WebGL vertex shader file",default:"(inbuilt)"}}}},{}],167:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){console.log(getStep(-2).options.name),console.log(getStep(-1).options.name),console.log(getStep(0).options.name),a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,e,n,r){return[255-t,255-e,255-n,r]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],168:[function(t,e,n){e.exports={name:"Invert",description:"Inverts the image.",inputs:{}}},{}],169:[function(t,e,n){e.exports=function(e,n){return(e=e||{}).filter=e.filter||"red",n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){if("red"==e.filter)var a=(r-t)/(1*r+t);"blue"==e.filter&&(a=(t-r)/(1*r+t));var o=255*(a+1)/2;return[o,o,o,i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],170:[function(t,e,n){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. <a href='https://publiclab.org/ndvi'>Read more</a>.<br /><br/>This is designed for use with red-filtered single camera <a href='http://publiclab.org/infragram'>DIY Infragram cameras</a>; change to 'blue' for blue filters",inputs:{filter:{type:"select",desc:"Filter color",default:"red",values:["red","blue"]}}}},{}],171:[function(t,e,n){e.exports=function(e,n){return e=e||{},n.onSetup(e.step),{options:e,draw:function(r,i,a){a.stop(!0),a.overrideFlag=!0,n.onDraw(e.step);var o=this;return t("../_nomodule/PixelManipulation.js")(r,{output:function(t,r,i){o.output={src:r,format:i},e.step.output=r,n.onComplete(e.step)},changePixel:function(t,n,r,i){var a=Math.sqrt(t*t*.299+n*n*.587+n*n*.114);return t=a+(t-a)*e.saturation,n=a+(n-a)*e.saturation,r=a+(r-a)*e.saturation,[Math.round(t),Math.round(n),Math.round(r),i]},format:r.format,image:e.image,inBrowser:e.inBrowser,callback:i})},output:void 0,UI:n}}},{"../_nomodule/PixelManipulation.js":173}],172:[function(t,e,n){e.exports={name:"Saturation",description:"Change the saturation of the image by given value, from 0-1, with 1 being 100% saturated.",inputs:{saturation:{type:"integer",desc:"saturation for the new image between 0 and 2, 0 being black and white and 2 being highly saturated",default:0}}}},{}],173:[function(t,e,n){(function(n,r){e.exports=function(e,i){(i=i||{}).changePixel=i.changePixel||function(t,e,n,r){return[t,e,n,r]},i.extraManipulation=i.extraManipulation||function(t){return t};var a=t("get-pixels"),o=t("save-pixels");a(e.src,function(a,s){if(a)console.log("Bad image path",e);else{if(i.getNeighbourPixel&&(i.getNeighbourPixel.fun=function(t,e){return i.getNeighbourPixel(s,l,c,t,e)}),!i.inBrowser&&!n.env.TEST)try{var u=t("pace")(s.shape[0]*s.shape[1])}catch(t){i.inBrowser=!0}for(var l=0;l<s.shape[0];l++)for(var c=0;c<s.shape[1];c++){var f=i.changePixel(s.get(l,c,0),s.get(l,c,1),s.get(l,c,2),s.get(l,c,3),l,c);s.set(l,c,0,f[0]),s.set(l,c,1,f[1]),s.set(l,c,2,f[2]),s.set(l,c,3,f[3]),i.inBrowser||n.env.TEST||u.op()}i.extraManipulation&&(s=i.extraManipulation(s));var h=[],p=0,d=o(s,i.format,{quality:100});d.on("data",function(t){p+=t.length,h.push(t)}),d.on("end",function(){var t=r.concat(h,p).toString("base64"),e="data:image/"+i.format+";base64,"+t;i.output&&i.output(i.image,e,i.format),i.callback&&i.callback()})}})}}).call(this,t("_process"),t("buffer").Buffer)},{_process:94,buffer:4,"get-pixels":23,pace:70,"save-pixels":107}],174:[function(t,e,n){e.exports=function(e,n,r,i){function a(n,r){var i;if(n.match(/^data:/i))r(i=n);else if(!e.options.inBrowser&&n.match(/^https?:\/\//i))t(n.match(/^(https?):\/\//i)[1]).get(n,function(t){var e="",n=t.headers["content-type"];t.setEncoding("base64"),t.on("data",function(t){e+=t}),t.on("end",function(){r("data:"+n+";base64,"+e)})});else if(e.options.inBrowser){var a=n.split(".").pop(),o=document.createElement("img"),s=document.createElement("canvas"),u=s.getContext("2d");o.onload=function(){s.width=o.naturalWidth,s.height=o.naturalHeight,u.drawImage(o,0,0),i=s.toDataURL(a),r(i)},o.src=n}else i=t("urify")(n),r(i)}return function(t,n){var r={name:"load-image",description:"This initial step loads and displays the original image without any modifications.<br /><br />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},o={src:n,steps:[{options:{id:r.ID,name:"load-image",description:"This initial step loads and displays the original image without any modifications.",title:"Load Image",step:r},UI:e.events,draw:function(){return UI.onDraw(options.step),1==arguments.length?(this.output=a(arguments[0]),options.step.output=this.output,UI.onComplete(options.step),!0):2==arguments.length&&(this.output=a(arguments[0]),options.step.output=this.output,arguments[1](),UI.onComplete(options.step),!0)}}]};a(n,function(n){var r=function(t){return{src:t,format:t.split(":")[1].split(";")[0].split("/")[1]}}(n);e.images[t]=o;var a=e.images[t].steps[0];return a.output=r,a.options.step.output=a.output.src,a.UI.onSetup(a.options.step),a.UI.onDraw(a.options.step),a.UI.onComplete(a.options.step),i(),!0})}(n,r)}},{urify:127}],175:[function(t,e,n){e.exports=function(t){return function(t){var e=$(t.dropZoneSelector),n=$(t.fileInputSelector);function r(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 n=new FileReader;n.onload=onLoad,n.readAsDataURL(e)}}onLoad=t.onLoad,new FileReader,n.on("change",r),e[0].addEventListener("drop",r,!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")})}}},{}],176:[function(t,e,n){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}},{}]},{},[135]);
\ No newline at end of file
diff --git a/package.json b/package.json
index b2fff7be..191c070a 100644
--- a/package.json
+++ b/package.json
@@ -1,20 +1,21 @@
 {
   "name": "image-sequencer",
   "version": "1.6.0",
-  "description":
-    "A modular JavaScript image manipulation library modeled on a storyboard.",
+  "description": "A modular JavaScript image manipulation library modeled on a storyboard.",
   "main": "src/ImageSequencer.js",
   "scripts": {
-    "debug":
-      "TEST=true node ./index.js -i ./examples/images/monarch.png -s invert",
-    "test":
-      "TEST=true tape test/**/*.js test/*.js | tap-spec; browserify test/modules/image-sequencer.js test/modules/chain.js test/modules/replace.js | tape-run --render=\"tap-spec\""
+    "debug": "TEST=true node ./index.js -i ./examples/images/monarch.png -s invert",
+    "test": "TEST=true tape test/**/*.js test/*.js | tap-spec; browserify test/modules/image-sequencer.js test/modules/chain.js test/modules/replace.js | tape-run --render=\"tap-spec\"",
+    "start": "grunt serve"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/publiclab/image-sequencer.git"
   },
-  "keywords": ["images", "Public Lab"],
+  "keywords": [
+    "images",
+    "Public Lab"
+  ],
   "author": "Public Lab",
   "license": "GPL-3.0",
   "bugs": {
@@ -61,4 +62,4 @@
   "bin": {
     "sequencer": "./index.js"
   }
-}
+}
\ No newline at end of file
diff --git a/src/AddStep.js b/src/AddStep.js
index 3abbc49c..becb3594 100644
--- a/src/AddStep.js
+++ b/src/AddStep.js
@@ -1,8 +1,10 @@
 // add steps to the sequencer 
+// TODO: reduce redundancy with InsertStep; this should be a specific usage of InsertStep at the final position
 function AddStep(_sequencer, image, name, o) {
 
   function addStep(image, name, o_) {
-    var moduleInfo = _sequencer.modules[name][1];
+    if (_sequencer.modules[name]) var moduleInfo = _sequencer.modules[name][1];
+    else console.log('Module ' + name + ' not found.');
 
     var o = _sequencer.copy(o_);
     o.number = _sequencer.options.sequencerCounter++; // gives a unique ID to each step
diff --git a/src/Modules.js b/src/Modules.js
index ed7b0fa6..1d2b6e7e 100644
--- a/src/Modules.js
+++ b/src/Modules.js
@@ -40,5 +40,8 @@ module.exports = {
   ],
   'average': [
     require('./modules/Average/Module'),require('./modules/Average/info')
+  ],
+  'blend': [
+    require('./modules/Blend/Module'),require('./modules/Blend/info')
   ]
 }
diff --git a/src/modules/Blend/Module.js b/src/modules/Blend/Module.js
new file mode 100644
index 00000000..c1e2ec11
--- /dev/null
+++ b/src/modules/Blend/Module.js
@@ -0,0 +1,74 @@
+module.exports = function Dynamic(options, UI, util) {
+
+  options = options || {};
+  options.func = options.func || "function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }";
+
+  // Tell the UI that a step has been set up.
+  UI.onSetup(options.step);
+  var output;
+
+  // This function is called on every draw.
+  function draw(input, callback, progressObj) {
+
+    progressObj.stop(true);
+    progressObj.overrideFlag = true;
+
+    // Tell the UI that the step is being drawn
+    UI.onDraw(options.step);
+    var step = this;
+
+    // convert to runnable code:
+    if (typeof options.func === "string") eval('options.func = ' + options.func);
+
+    var getPixels = require('get-pixels');
+
+    // save first image's pixels
+    var priorStep = getStep(-2);
+
+    getPixels(priorStep.output.src, function (err, pixels) {
+      options.firstImagePixels = pixels;
+
+      function changePixel(r2, g2, b2, a2, x, y) {
+        // blend!
+        var p = options.firstImagePixels;
+        return options.func(
+          r2, g2, b2, a2,
+          p.get(x, y, 0),
+          p.get(x, y, 1),
+          p.get(x, y, 2),
+          p.get(x, y, 3)
+        )
+      }
+
+      function output(image, datauri, mimetype) {
+
+        // This output is accessible by Image Sequencer
+        step.output = { src: datauri, format: mimetype };
+
+        // This output is accessible by the UI
+        options.step.output = datauri;
+
+        // Tell the UI that the draw is complete
+        UI.onComplete(options.step);
+
+      }
+
+      // run PixelManipulatin on second image's pixels 
+      return require('../_nomodule/PixelManipulation.js')(input, {
+        output: output,
+        changePixel: changePixel,
+        format: input.format,
+        image: options.image,
+        inBrowser: options.inBrowser,
+        callback: callback
+      });
+    });
+  }
+
+  return {
+    options: options,
+    draw: draw,
+    output: output,
+    UI: UI
+  }
+}
diff --git a/src/modules/Blend/info.json b/src/modules/Blend/info.json
new file mode 100755
index 00000000..390d99bb
--- /dev/null
+++ b/src/modules/Blend/info.json
@@ -0,0 +1,11 @@
+{
+  "name": "Blend",
+  "description": "Blend the past two 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": {
+    "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 ] }"
+    }
+  }
+}
diff --git a/src/modules/_nomodule/PixelManipulation.js b/src/modules/_nomodule/PixelManipulation.js
index fadf92e6..2b585ac2 100644
--- a/src/modules/_nomodule/PixelManipulation.js
+++ b/src/modules/_nomodule/PixelManipulation.js
@@ -20,7 +20,7 @@ module.exports = function PixelManipulation(image, options) {
   var getPixels = require("get-pixels"),
     savePixels = require("save-pixels");
 
-  getPixels(image.src, function(err, pixels) {
+  getPixels(image.src, function (err, pixels) {
     if (err) {
       console.log("Bad image path", image);
       return;
@@ -50,7 +50,9 @@ module.exports = function PixelManipulation(image, options) {
           pixels.get(x, y, 0),
           pixels.get(x, y, 1),
           pixels.get(x, y, 2),
-          pixels.get(x, y, 3)
+          pixels.get(x, y, 3),
+          x,
+          y
         );
 
         pixels.set(x, y, 0, pixel[0]);
@@ -71,12 +73,12 @@ module.exports = function PixelManipulation(image, options) {
     var totalLength = 0;
     var r = savePixels(pixels, options.format, { quality: 100 });
 
-    r.on("data", function(chunk) {
+    r.on("data", function (chunk) {
       totalLength += chunk.length;
       chunks.push(chunk);
     });
 
-    r.on("end", function() {
+    r.on("end", function () {
       var data = Buffer.concat(chunks, totalLength).toString("base64");
       var datauri = "data:image/" + options.format + ";base64," + data;
       if (options.output)