| <!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> |
| let testName = "XRViewport attributes are valid"; |
| |
| let fakeDeviceInitParams = TRACKED_IMMERSIVE_DEVICE; |
| |
| let testFunction = function(session, fakeDeviceController, t, sessionObjects) { |
| return session.requestReferenceSpace('local') |
| .then((referenceSpace) => new Promise((resolve) =>{ |
| let webglLayer = sessionObjects.glLayer; |
| function onFrame(time, xrFrame) { |
| t.step(() => { |
| let pose = xrFrame.getViewerPose(referenceSpace); |
| assert_not_equals(pose, null); |
| assert_not_equals(pose.views, null); |
| |
| if (session.sessionInit['optionalFeatures'].includes('secondary-views')) { |
| assert_equals(pose.views.length, 3); |
| } else { |
| assert_equals(pose.views.length, 2); |
| } |
| |
| // Ensure the views report the expected viewports into the WebGL layer. |
| for (let i = 0; i < pose.views.length; i++) { |
| let view = pose.views[i]; |
| let viewport = webglLayer.getViewport(view); |
| |
| assert_not_equals(viewport, null); |
| assert_true(viewport instanceof XRViewport); |
| |
| // Exact viewport values don't matter, but they must pass several tests: |
| |
| // Viewports have non-zero widths and heights. |
| assert_greater_than(viewport.width, 0); |
| assert_greater_than(viewport.height, 0); |
| |
| // Viewports are located within the framebuffer. |
| assert_greater_than_equal(viewport.x, 0); |
| assert_greater_than_equal(viewport.y, 0); |
| |
| assert_less_than_equal( |
| viewport.x + viewport.width, webglLayer.framebufferWidth); |
| assert_less_than_equal( |
| viewport.y + viewport.height, webglLayer.framebufferHeight); |
| |
| // Assume that the viewports are ordered from left to right. This is |
| // not a requirement by the WebXR spec, but is a sanity check since |
| // this is how Blink orders them. |
| if (i != 0) { |
| let previousView = pose.views[i - 1]; |
| let previousViewport = webglLayer.getViewport(previousView); |
| assert_less_than_equal(previousViewport.x + previousViewport.width, viewport.x); |
| } |
| } |
| }); |
| |
| resolve(); |
| } |
| session.requestAnimationFrame(onFrame); |
| })); |
| }; |
| |
| xr_session_promise_test( |
| testName, testFunction, fakeDeviceInitParams, 'immersive-vr', |
| {'optionalFeatures': []}); |
| |
| xr_session_promise_test( |
| testName + ' with secondary views requested', testFunction, fakeDeviceInitParams, 'immersive-vr', |
| {'optionalFeatures': ['secondary-views']}); |
| |
| </script> |