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<!DOCTYPE html>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="file:///gen/layout_test_data/mojo/public/js/mojo_bindings.js"></script>
<script src="file:///gen/device/vr/public/mojom/vr_service.mojom.js"></script>
<script src="../external/wpt/resources/chromium/webxr-test.js"></script>
<script src="../xr/resources/xr-test-utils.js"></script>
<script src="../xr/resources/test-constants.js"></script>
<canvas id="webgl-canvas"></canvas>
<script>
const TEN_SECONDS = 10000; // 10k ms in ten seconds
const ONE_MINUTE = 60000; // 60k ms in one minute
let testName = "XRFrame getDevicePose updates on the next frame";
let fakeDeviceInitParams = { supportsImmersive:true };
let requestSessionOptions = [
{ outputContext: getOutputContext() },
{ immersive: true },
];
let testFunction = function(session, t, fakeDeviceController) {
// Session must have a baseLayer or else frame requests will be ignored.
session.baseLayer = new XRWebGLLayer(session, gl);
// Need to have a valid pose or input event's don't process.
fakeDeviceController.setXRPresentationFrameData(
VALID_POSE_MATRIX, [{
eye:"left",
projectionMatrix: VALID_PROJECTION_MATRIX,
viewMatrix: VALID_VIEW_MATRIX
}, {
eye:"right",
projectionMatrix: VALID_PROJECTION_MATRIX,
viewMatrix: VALID_VIEW_MATRIX
}]);
return session.requestFrameOfReference("eye-level")
.then((frameOfRef) => new Promise((resolve, reject) => {
let counter = 0;
let windowFrameTime = 0;
let frameTime = 0;
function onFrameFirst(time, xrFrame) {
frameTime = time;
let now = performance.now();
t.step( () => {
// This callback must be the first one called.
assert_equals(counter, 0);
// window.requestAnimationFrame and session.requestAnimationFrame
// should be providing timestamps that are on the same scale and
// within a resonable margin of error of eachother. This means that
// this frame's timestamp should be larger than one provided to a
// previous window.requestAnimationFrame and should also be within
// a sane delta of it. One minute is probably overly generous here,
// but it will at least catch cases where the times are reported with
// entirely different bases.
assert_greater_than(frameTime, windowFrameTime);
assert_approx_equals(frameTime, windowFrameTime, ONE_MINUTE);
// There's going to be some disparity between performance.now() and
// the timestamp passed into the callback, but it shouldn't be huge.
// If they're more than ten seconds apart something has gone horribly
// wrong.
assert_approx_equals(frameTime, now, TEN_SECONDS);
});
counter++;
}
function onFrameSubsequent(time, xrFrame) {
t.step( () => {
// The timestamp passed to this callback should be exactly equal to
// the one passed to the first callback in this set.
assert_equals(time, frameTime);
});
counter++;
}
function onFrameLast(time, xrFrame) {
t.step( () => {
// Make sure all the previous callbacks fired as expected.
assert_equals(counter, 11);
});
// Finished.
resolve();
}
window.requestAnimationFrame((time) => {
windowFrameTime = time;
// Queue up several callbacks
session.requestAnimationFrame(onFrameFirst);
for (let i = 0; i < 10; ++i) {
session.requestAnimationFrame(onFrameSubsequent);
}
session.requestAnimationFrame(onFrameLast);
});
}));
};
xr_session_promise_test(
testFunction, fakeDeviceInitParams, requestSessionOptions, testName);
</script>