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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webxr_util.js"></script>
<script src="resources/webxr_test_constants.js"></script>
<script>
const TEN_SECONDS = 10000; // 10k ms in ten seconds
const ONE_MINUTE = 60000; // 60k ms in one minute
let immersiveTestName = "XRFrame getViewerPose updates on the next frame for immersive";
let nonImmersiveTestName = "XRFrame getViewerPose updates on the next frame for non-immersive";
let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;
let testFunction = function(session, fakeDeviceController, t) {
return session.requestReferenceSpace('viewer')
.then((referenceSpace) => new Promise((resolve, reject) => {
let counter = 0;
let windowFrameTime = 0;
let frameTime = 0;
let lastFrameTime = 0;
let firstFrame = true;
function onFrameFirst(time, xrFrame) {
lastFrameTime = frameTime;
frameTime = time;
let now = performance.now();
t.step( () => {
if(firstFrame) {
// This callback must be the first one called.
assert_equals(counter, 0);
} else {
// If it's a second animation frame, the timestamp must be greater
// than the timestamp on a previous frame.
assert_greater_than(frameTime, lastFrameTime);
// ... but not grater than 10 seconds.
assert_approx_equals(frameTime, lastFrameTime, TEN_SECONDS);
}
// 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);
});
if (firstFrame) {
// We also want this method to run for the second animation frame.
session.requestAnimationFrame(onFrameFirst);
} else {
resolve();
}
firstFrame = false;
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);
});
}
session.requestAnimationFrame(onFrameFirst);
// Queue up several callbacks
for (let i = 0; i < 10; ++i) {
session.requestAnimationFrame(onFrameSubsequent);
}
session.requestAnimationFrame(onFrameLast);
}));
};
xr_session_promise_test(
immersiveTestName, testFunction, fakeDeviceInitParams, 'immersive-vr');
xr_session_promise_test(
nonImmersiveTestName, testFunction, fakeDeviceInitParams, 'inline');
</script>
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