<!DOCTYPE HTML>
<html>
<head>
<title>WebGL in OffscreenCanvas</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
</head>
<body>
<canvas id="c" width="64" height="64"></canvas>
<script>
SimpleTest.waitForExplicitFinish();
function runTest() {
var htmlCanvas = document.getElementById("c");
var worker = new Worker("offscreencanvas.js");
worker.onmessage = function(evt) {
var msg = evt.data || {};
if (msg.type == "test") {
ok(msg.result, msg.name);
}
if (msg.type == "finish") {
worker.terminate();
SimpleTest.finish();
}
}
var offscreenCanvas = htmlCanvas.transferControlToOffscreen();
worker.postMessage({test: 'webgl_changesize', canvas: offscreenCanvas}, [offscreenCanvas]);
}
SpecialPowers.pushPrefEnv({'set': [
['gfx.offscreencanvas.enabled', true],
['webgl.force-enabled', true],
]}, runTest);
</script>
</body>
</html>