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39 lines
1.3 KiB
HTML
39 lines
1.3 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.put.modified</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.put.modified</h1>
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<p class="desc">putImageData() puts modified image data correctly</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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<p class="output expectedtext">Expected output:<p><img src="/images/green-100x50.png" class="output expected" id="expected" alt="">
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<ul id="d"></ul>
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<script>
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var t = async_test("putImageData() puts modified image data correctly");
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_addTest(function(canvas, ctx) {
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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(canvas, 50,25, 0,255,0,255, "50,25", "0,255,0,255", 2);
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});
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</script>
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