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<!DOCTYPE html>
<body>
<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 src="resources/webxr_test_asserts.js"></script>
<script>
let immersiveTestName =
"XRFrame getViewerPose updates on the next frame for immersive sessions";
let nonImmersiveTestName =
"XRFrame getViewerPose updates on the next frame for non-immersive sessions";
let fakeDeviceInitParams = {
supportsImmersive: true,
supportedModes: ["inline", "immersive-vr"],
views: VALID_VIEWS,
supportedFeatures: ALL_FEATURES
};
// A valid pose matrix/transform for when we don't care about specific values
// Note that these two should be identical, just different representations
const expectedPoseMatrix = [0, 1, 0, 0,
0, 0, 1, 0,
1, 0, 0, 0,
1, 1, 1, 1];
const poseTransform = {
position: [1, 1, 1],
orientation: [0.5, 0.5, 0.5, 0.5]
};
let testFunction = function(session, fakeDeviceController, t) {
return session.requestReferenceSpace('local')
.then((referenceSpace) => new Promise((resolve, reject) => {
let counter = 0;
function onFrame(time, vrFrame) {
if (counter == 0) {
t.step( () => {
// Expecting to not get a pose since none has been supplied
assert_equals(vrFrame.getViewerPose(referenceSpace), null);
fakeDeviceController.setViewerOrigin(poseTransform);
// Check that pose does not update pose within the same frame.
assert_equals(vrFrame.getViewerPose(referenceSpace), null);
});
// In order to avoid race conditions, after we've set the viewer
// pose, we queue up the next requestAnimationFrame. This should
// ensure that the next frame will be able to get the appropriate
// pose.
// Note that since the next frame will immediately resolve and end
// the test we only need to request a new frame once, here.
session.requestAnimationFrame(onFrame);
} else {
t.step( () => {
let pose = vrFrame.getViewerPose(referenceSpace);
assert_not_equals(pose, null);
let poseMatrix = pose.transform.matrix;
assert_not_equals(poseMatrix, null);
assert_matrix_approx_equals(poseMatrix, expectedPoseMatrix);
});
// Finished.
resolve();
}
counter++;
}
session.requestAnimationFrame(onFrame);
}));
};
xr_session_promise_test(nonImmersiveTestName, testFunction,
fakeDeviceInitParams, 'inline', { 'requiredFeatures': ['local'] });
xr_session_promise_test(immersiveTestName, testFunction,
fakeDeviceInitParams, 'immersive-vr');
</script>
</body>
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