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31 lines
1,000 B
HTML
31 lines
1,000 B
HTML
<!DOCTYPE html>
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<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
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<title>OffscreenCanvas test: 2d.shadow.alpha.4</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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<h1>2d.shadow.alpha.4</h1>
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<p class="desc">Shadows with alpha components are correctly affected by globalAlpha</p>
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<script>
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var t = async_test("Shadows with alpha components are correctly affected by globalAlpha");
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t.step(function() {
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var offscreenCanvas = new OffscreenCanvas(100, 50);
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var ctx = offscreenCanvas.getContext('2d');
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ctx.fillStyle = '#f00';
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ctx.fillRect(0, 0, 100, 50);
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ctx.fillStyle = '#f00'; // (work around broken Firefox globalAlpha caching)
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ctx.shadowColor = 'rgba(0, 0, 255, 0.707)';
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ctx.shadowOffsetY = 50;
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ctx.globalAlpha = 0.707;
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ctx.fillRect(0, -50, 100, 50);
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_assertPixelApprox(offscreenCanvas, 50,25, 127,0,127,255, "50,25", "127,0,127,255", 2);
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t.done();
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});
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</script>
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