Content - ea6c5ac2d686b0539b22cc054f4cb33ddfd9b2cd - 0d65929/offscreen-canvas/compositing/2d.composite.globalAlpha.canvaspattern.html

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Tip revision: 34bd5b1a3394e0ffcae29aae509057bfd1fa3935 authored by Yutaka Hirano on 03 April 2018, 03:15:14 UTC
fix

Tip revision: 34bd5b1

2d.composite.globalAlpha.canvaspattern.html

<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.composite.globalAlpha.canvaspattern</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/canvas-tests.js"></script>

<h1>2d.composite.globalAlpha.canvaspattern</h1>
<p class="desc"></p>


<script>
var t = async_test("");
t.step(function() {

var offscreenCanvas = new OffscreenCanvas(100, 50);
var ctx = offscreenCanvas.getContext('2d');

var offscreenCanvas2 = new OffscreenCanvas(100, 50);
var ctx2 = offscreenCanvas2.getContext('2d');
ctx2.fillStyle = '#f00';
ctx2.fillRect(0, 0, 100, 50);
ctx.fillStyle = '#0f0';
ctx.fillRect(0, 0, 100, 50);
ctx.fillStyle = ctx.createPattern(offscreenCanvas2, 'no-repeat');
ctx.globalAlpha = 0.01; // avoid any potential alpha=0 optimisations
ctx.fillRect(0, 0, 100, 50);
_assertPixelApprox(offscreenCanvas, 50,25, 2,253,0,255, "50,25", "2,253,0,255", 2);

t.done();

});
</script>

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