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31 lines
1 KiB
HTML
31 lines
1 KiB
HTML
<!DOCTYPE html>
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<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
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<title>Canvas test: 2d.imageData.get.order.alpha</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/canvas-tests.js"></script>
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<link rel="stylesheet" href="/common/canvas-tests.css">
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<body class="show_output">
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<h1>2d.imageData.get.order.alpha</h1>
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<p class="desc">getImageData() returns A in the fourth component</p>
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<p class="output">Actual output:</p>
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<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
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<ul id="d"></ul>
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<script>
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var t = async_test("getImageData() returns A in the fourth component");
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_addTest(function(canvas, ctx) {
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ctx.fillStyle = 'rgba(0, 0, 0, 0.5)';
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ctx.fillRect(0, 0, 100, 50);
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var imgdata = ctx.getImageData(0, 0, 10, 10);
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_assert(imgdata.data[3] < 200, "imgdata.data[\""+(3)+"\"] < 200");
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_assert(imgdata.data[3] > 100, "imgdata.data[\""+(3)+"\"] > 100");
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});
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</script>
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