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<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webxr_test_constants.js"></script>
<script src="resources/webxr_util.js"></script>
<script src="resources/webxr_test_asserts.js"></script>
<script>
let immersiveTestName = "XRWebGLLayer reports a valid viewports for immersive sessions";
let inlineTestName = "XRWebGLLayer reports a valid viewports for inline sessions";
let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE;
let testFunction = function(session, fakeDeviceController, t) {
return session.requestReferenceSpace('viewer')
.then((space) => new Promise((resolve) => {
function onFrame(time, xrFrame) {
let viewer_pose = xrFrame.getViewerPose(space);
let layer = xrFrame.session.renderState.baseLayer;
for (view of viewer_pose.views) {
let viewport = layer.getViewport(view);
t.step(() => {
// Ensure the returned object is an XRViewport object
assert_not_equals(viewport, null);
assert_true(viewport instanceof XRViewport);
// Ensure the viewport dimensions are valid
assert_greater_than_equal(viewport.x, 0);
assert_greater_than_equal(viewport.y, 0);
assert_greater_than_equal(viewport.width, 1);
assert_greater_than_equal(viewport.height, 1);
});
// Ensure none of the viewports overlap
for (other of viewer_pose.views) {
if (view !== other) {
let otherport = layer.getViewport(other);
let no_overlap = (viewport.x + viewport.width <= otherport.x) ||
(otherport.x + otherport.width <= viewport.x) ||
(viewport.y + viewport.height <= otherport.y) ||
(otherport.y + otherport.height <= viewport.y);
t.step(() => {
assert_true(no_overlap, "Overlap between viewport " + view.eye + " and " + other.eye);
});
}
}
}
// Finished test.
resolve();
}
session.requestAnimationFrame(onFrame);
}));
};
xr_session_promise_test(immersiveTestName, testFunction,
fakeDeviceInitParams, 'immersive-vr');
xr_session_promise_test(immersiveTestName + ' with secondary views requested', testFunction,
fakeDeviceInitParams, 'immersive-vr', {'optionalFeatures': ['secondary-views']});
xr_session_promise_test(inlineTestName, testFunction,
fakeDeviceInitParams, 'inline');
xr_session_promise_test(inlineTestName + ' with secondary views requested', testFunction,
fakeDeviceInitParams, 'inline', {'optionalFeatures': ['secondary-views']});
</script>
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