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31 lines
906 B
JavaScript
31 lines
906 B
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
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// OffscreenCanvas test in a worker:2d.imageData.put.modified
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// Description:putImageData() puts modified image data correctly
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// Note:
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importScripts("/resources/testharness.js");
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importScripts("/common/canvas-tests.js");
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var t = async_test("putImageData() puts modified image data correctly");
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t.step(function() {
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var offscreenCanvas = new OffscreenCanvas(100, 50);
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var ctx = offscreenCanvas.getContext('2d');
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ctx.fillStyle = '#0f0';
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ctx.fillRect(0, 0, 100, 50)
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ctx.fillStyle = '#f00';
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ctx.fillRect(45, 20, 10, 10)
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var imgdata = ctx.getImageData(45, 20, 10, 10);
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for (var i = 0, len = imgdata.width*imgdata.height*4; i < len; i += 4)
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{
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imgdata.data[i] = 0;
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imgdata.data[i+1] = 255;
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}
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ctx.putImageData(imgdata, 45, 20);
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_assertPixelApprox(offscreenCanvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 2);
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t.done();
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});
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done();
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