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Add configurable parameter for blend module to chose image (#424)

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* Add configurable parameter for blend module to chose image

* Made minor changes

* Edit test to work with new parameter

* blend offset test added

* blend offset test added

* fixed blend offset test
This commit is contained in:
KusioDev
2018-10-23 21:03:41 +02:00
committed by Jeffrey Warren
parent 11b65604cd
commit e5e372d89d
3 changed files with 70 additions and 48 deletions
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6
src/modules/Blend/Module.js
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@@ -1,6 +1,7 @@
module.exports = function Dynamic(options, UI, util) {
options.func = options.func || "function(r1, g1, b1, a1, r2, g2, b2, a2) { return [ r1, g2, b2, a2 ] }";
options.offset = options.offset || -2;
var output;
@@ -17,8 +18,11 @@ module.exports = function Dynamic(options, UI, util) {
var getPixels = require('get-pixels');
// convert offset as string to int
if(typeof options.offset === "string") options.offset = parseInt(options.offset);
// save first image's pixels
var priorStep = this.getStep(-2);
var priorStep = this.getStep(options.offset);
getPixels(priorStep.output.src, function(err, pixels) {
options.firstImagePixels = pixels;

7
src/modules/Blend/info.json
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@@ -1,7 +1,12 @@
{
"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!",
"description": "Blend two chosen image steps with the given function. Defaults to using the red channel from image 1 and the green and blue and alpha channels of image 2. Easier to use interfaces coming soon!",
"inputs": {
"offset": {
"type": "integer",
"desc": "Choose which image to blend the current image with. Two steps back is -2, three steps back is -3 etc.",
"default": -2
},
"blend": {
"type": "input",
"desc": "Function to use to blend the two images.",

15
test/modules/image-sequencer.js
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@@ -184,10 +184,23 @@ test('getStep(offset) returns the step at offset distance relative to current st
});
test('toCliString() returns the CLI command for the sequence', function(t) {
t.deepEqual(sequencer.toCliString(), `sequencer -i [PATH] -s "channel channel channel channel channel invert blend" -d '{"channel":"green"}'`, "works correctly");
t.deepEqual(sequencer.toCliString(), `sequencer -i [PATH] -s "channel channel channel channel channel invert blend" -d '{"channel":"green","offset":-2}'`, "works correctly");
t.end();
});
test('blend returns different output depending on the set offset', function(t) {
var blend_2;
sequencer.addSteps('test', 'invert', {});
sequencer.addSteps('test', 'invert', {});
sequencer.addSteps('test', 'blend', {});
// because we've added blend before, so instead of -3 we set it to -4
sequencer.addSteps('test', 'blend', {'offset': -4});
sequencer.run({ mode: 'test' }, function(out) {
t.notStrictEqual(out, sequencer.images.test.steps[sequencer.images.test.steps.length - 2].output.src, 'different offsets give different output');
t.end();
});
});
test('replaceImage returns false in NodeJS', function(t) {
var returnvalue = (sequencer.options.inBrowser) ? false : sequencer.replaceImage("#selector", "test");
t.equal(returnvalue, false, "It does.");