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44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
// DO NOT EDIT! This test has been generated by tools/gentest.py.
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// OffscreenCanvas test in a worker:2d.imageData.object.clamp
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// Description:ImageData.data clamps numbers to [0, 255]
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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("ImageData.data clamps numbers to [0, 255]");
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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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var imgdata = ctx.getImageData(0, 0, 10, 10);
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imgdata.data[0] = 100;
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imgdata.data[0] = 300;
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_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
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imgdata.data[0] = 100;
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imgdata.data[0] = -100;
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_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
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imgdata.data[0] = 100;
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imgdata.data[0] = 200+Math.pow(2, 32);
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_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
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imgdata.data[0] = 100;
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imgdata.data[0] = -200-Math.pow(2, 32);
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_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
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imgdata.data[0] = 100;
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imgdata.data[0] = Math.pow(10, 39);
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_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
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imgdata.data[0] = 100;
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imgdata.data[0] = -Math.pow(10, 39);
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_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
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imgdata.data[0] = 100;
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imgdata.data[0] = -Infinity;
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_assertSame(imgdata.data[0], 0, "imgdata.data[\""+(0)+"\"]", "0");
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imgdata.data[0] = 100;
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imgdata.data[0] = Infinity;
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_assertSame(imgdata.data[0], 255, "imgdata.data[\""+(0)+"\"]", "255");
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t.done();
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});
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done();
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