зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.4 KiB
HTML
47 строки
1.4 KiB
HTML
<!DOCTYPE HTML>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1567544
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Test that globalCompositeOperation is applied to SVG images drawn with `drawImage`.
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-->
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<title>Test for Bug 1567544</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<body>
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<canvas id="c" width="100" height="50"></canvas>
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<script>
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function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
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var pixel = ctx.getImageData(x, y, 1, 1);
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var pr = pixel.data[0],
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pg = pixel.data[1],
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pb = pixel.data[2],
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pa = pixel.data[3];
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ok(r-d <= pr && pr <= r+d &&
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g-d <= pg && pg <= g+d &&
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b-d <= pb && pb <= b+d &&
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a-d <= pa && pa <= a+d,
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"pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d);
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(function () {
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var canvas = document.getElementById('c');
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var ctx = canvas.getContext('2d');
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ctx.beginPath();
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ctx.arc(50, 50, 37.5, 0, Math.PI * 2);
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ctx.fillStyle = 'red';
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ctx.fill();
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ctx.globalCompositeOperation = 'destination-in';
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ctx.drawImage(document.getElementById('roundrectangle.svg'), 50, 40);
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isPixel(ctx, 82,38, 0,0,0,0, "82,38", "0,0,0,0", 0);
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isPixel(ctx, 82,48, 255,0,0,255, "82,48", "255,0,0,255", 0);
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SimpleTest.finish();
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});
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</script>
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<img src="image_roundrectangle.svg" id="roundrectangle.svg" class="resource">
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