6325acca6c
Philip Taylor <philip.taylor@cl.cam.ac.uk> git-svn-id: svn://10.0.0.236/trunk@240557 18797224-902f-48f8-a5cc-f745e15eee43
42 lines
1.2 KiB
HTML
42 lines
1.2 KiB
HTML
<!DOCTYPE HTML>
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<title>Canvas test: 2d.imageData.put.unchanged</title>
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<script src="/MochiKit/MochiKit.js"></script>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
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<body>
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<canvas id="c" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
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<script>
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var _deferred = false;
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SimpleTest.waitForExplicitFinish();
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MochiKit.DOM.addLoadEvent(function () {
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var canvas = document.getElementById('c');
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var ctx = canvas.getContext('2d');
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var i = 0;
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for (var y = 0; y < 16; ++y)
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{
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for (var x = 0; x < 16; ++x, ++i)
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{
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ctx.fillStyle = 'rgba(' + i + ',' + (Math.floor(i*1.5) % 256) + ',' + (Math.floor(i*23.3) % 256) + ',' + (i/256) + ')';
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ctx.fillRect(x, y, 1, 1);
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}
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}
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var imgdata1 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
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var olddata = [];
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for (var i = 0; i < imgdata1.data.length; ++i)
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olddata[i] = imgdata1.data[i];
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ctx.putImageData(imgdata1, 0.1, 0.2);
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var imgdata2 = ctx.getImageData(0.1, 0.2, 15.8, 15.9);
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for (var i = 0; i < imgdata2.data.length; ++i)
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{
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ok(olddata[i] === imgdata2.data[i], "olddata[\""+(i)+"\"] === imgdata2.data[\""+(i)+"\"]");
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}
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if (!_deferred) SimpleTest.finish();
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});
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</script>
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