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2d.composite.canvas.source-over.html
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2d.composite.canvas.source-over.html
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<!DOCTYPE html>
<title>Canvas test: 2d.composite.canvas.source-over</title>
<meta name="author" content="Philip Taylor">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../../common/canvas-tests.js"></script>
<link rel="stylesheet" href="../../../common/canvas-tests.css">
<body class="show_output">
<h1><a href="index.2d.html">2d</a>.<a href="index.2d.composite.html">composite</a>.<a href="index.2d.composite.canvas.html">canvas</a>.source-over</h1>
<p class="desc"></p>
<div class="refs">Spec references:
<ul>
<li><a href="../annotated-spec/canvas.html#testrefs.2d.composite.source-over">2d.composite.source-over</a>
</ul>
</div>
<p class="output">Actual output:</p>
<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
<p class="output expectedtext">Expected output:<p><img src="2d.composite.canvas.source-over.png" class="output expected" id="expected" alt="">
<ul id="d"></ul>
<script>
var t = async_test("");
_addTest(function(canvas, ctx) {
var canvas2 = document.createElement('canvas');
canvas2.width = canvas.width;
canvas2.height = canvas.height;
var ctx2 = canvas2.getContext('2d');
ctx2.drawImage(document.getElementById('yellow75.png'), 0, 0);
ctx.fillStyle = 'rgba(0, 255, 255, 0.5)';
ctx.fillRect(0, 0, 100, 50);
ctx.globalCompositeOperation = 'source-over';
ctx.drawImage(canvas2, 0, 0);
_assertPixelApprox(canvas, 50,25, 219,255,36,223, "50,25", "219,255,36,223", 5);
});
</script>
<img src="../../../images/yellow75.png" id="yellow75.png" class="resource">