gecko-dev/dom/webgpu/mochitest/test_buffer_mapping.html
Dzmitry Malyshau dc8a21948c Bug 1602880 - Rename dom.webgpu.enable pref and restrict the CTS r=jgilbert,bzbarsky
addresses 1600364

Differential Revision: https://phabricator.services.mozilla.com/D56603

--HG--
extra : moz-landing-system : lando
2019-12-12 03:09:30 +00:00

34 lines
893 B
HTML

<!DOCTYPE HTML>
<html>
<head>
<meta charset='utf-8'>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
</head>
<body>
<script>
ok(SpecialPowers.getBoolPref('dom.webgpu.enabled'), 'Pref should be enabled.');
const func = async function() {
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const [buffer, mapping] = await device.createBufferMapped({
size: 4,
usage: GPUBufferUsage.MAP_READ | GPUBufferUsage.COPY_SRC, //TODO: remove the dummy usage
});
new Float32Array(mapping).set([1.0]);
buffer.unmap();
const data = await buffer.mapReadAsync();
const value = new Float32Array(data)[0];
buffer.unmap();
ok(value == 1.0, 'value == 1.0');
};
SimpleTest.waitForExplicitFinish();
func().finally(() => SimpleTest.finish());
</script>
</body>
</html>