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content / test / data / gpu / pixel_webgl_low_to_high_power_alpha_false.html [blame]
<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="initial-scale=1">
<title>WebGL Low to High Power alpha:false Transition Test</title>
<style type="text/css">
.nomargin {
margin: 0px auto;
}
</style>
<script src="pixel_webgl_fullscreen_quad.js"></script>
<script>
function ready() {
sendResult("READY", "Ready for initialize() to be called");
}
function initialize(runningOnDualGPUMacBookPro) {
if (runningOnDualGPUMacBookPro)
setRunningOnDualGpuSystem();
if (setup({ alpha: false }))
drawSomeFrames(allocateHighPowerContext);
}
function allocateHighPowerContext() {
assertRunningOnLowPowerGpu();
c2.getContext("webgl", { powerPreference: "high-performance" });
// On macOS there is an approximately two second delay between activating the
// discrete GPU and applications receiving a notification of its activation.
// Avoid a race condition, and test flakiness, by waiting for twice as long as
// this delay.
setTimeout(() => {
assertRunningOnHighPerformanceGpu();
drawSomeFrames(waitForFinish);
}, 4000);
}
function waitForFinish()
{
let numFramesBeforeEnd = 15;
function waitForFinishImpl() {
if (--numFramesBeforeEnd == 0) {
sendResult("SUCCESS", "Test complete");
} else {
window.requestAnimationFrame(waitForFinishImpl);
}
}
window.requestAnimationFrame(waitForFinishImpl);
}
</script>
</head>
<body onload="ready()">
<canvas id="c" width="300" height="300" class="nomargin" style="position:absolute; top:0px; left:0px;"></canvas>
<canvas id="c2" width="1" height="1" class="nomargin"></canvas>
</body>
</html>