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24 lines
750 B
HTML
24 lines
750 B
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test overdraw</title>
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<script type="application/javascript" 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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</head>
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<body>
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<script type="application/javascript">
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var domWindowUtils = SpecialPowers.getDOMWindowUtils(window);
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var overdraw = domWindowUtils.requestCompositorProperty("overdraw");
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if (overdraw == -1) {
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// Overdraw queries are not supported on non OMTC builds.
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ok(overdraw == -1, "Platform doesn't use a compositor.");
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} else {
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// Overdraw may be lower than 100% like on OS X where we don't
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// composite the window corners.
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ok(overdraw > 0.95 && overdraw < 200, "Overdraw: " + overdraw);
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}
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</script>
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</body>
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