1 files changed, 31 insertions, 0 deletions
diff --git a/dom/vr/XRNativeOriginViewer.cpp b/dom/vr/XRNativeOriginViewer.cpp
new file mode 100644
index 0000000000..a385d2d6e2
--- /dev/null
+++ b/dom/vr/XRNativeOriginViewer.cpp
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "XRNativeOriginViewer.h"
+#include "VRDisplayClient.h"
+
+namespace mozilla::dom {
+
+XRNativeOriginViewer::XRNativeOriginViewer(gfx::VRDisplayClient* aDisplay)
+    : mDisplay(aDisplay) {
+  MOZ_ASSERT(aDisplay);
+}
+
+gfx::PointDouble3D XRNativeOriginViewer::GetPosition() {
+  const gfx::VRHMDSensorState& sensorState = mDisplay->GetSensorState();
+  return gfx::PointDouble3D(sensorState.pose.position[0],
+                            sensorState.pose.position[1],
+                            sensorState.pose.position[2]);
+}
+
+gfx::QuaternionDouble XRNativeOriginViewer::GetOrientation() {
+  const gfx::VRHMDSensorState& sensorState = mDisplay->GetSensorState();
+  return gfx::QuaternionDouble(
+      sensorState.pose.orientation[0], sensorState.pose.orientation[1],
+      sensorState.pose.orientation[2], sensorState.pose.orientation[3]);
+}
+
+}  // namespace mozilla::dom