1 files changed, 111 insertions, 0 deletions
diff --git a/gfx/vr/gfxVROculus.h b/gfx/vr/gfxVROculus.h
new file mode 100644
index 000000000..ff00cb1df
--- /dev/null
+++ b/gfx/vr/gfxVROculus.h
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#ifndef GFX_VR_OCULUS_H
+#define GFX_VR_OCULUS_H
+
+#include "nsTArray.h"
+#include "mozilla/RefPtr.h"
+
+#include "mozilla/gfx/2D.h"
+#include "mozilla/EnumeratedArray.h"
+
+#include "gfxVR.h"
+#include "VRDisplayHost.h"
+#include "ovr_capi_dynamic.h"
+
+struct ID3D11Device;
+
+namespace mozilla {
+namespace layers {
+class CompositingRenderTargetD3D11;
+struct VertexShaderConstants;
+struct PixelShaderConstants;
+}
+namespace gfx {
+namespace impl {
+
+class VRDisplayOculus : public VRDisplayHost
+{
+public:
+  virtual void NotifyVSync() override;
+  virtual VRHMDSensorState GetSensorState() override;
+  virtual VRHMDSensorState GetImmediateSensorState() override;
+  void ZeroSensor() override;
+
+protected:
+  virtual void StartPresentation() override;
+  virtual void StopPresentation() override;
+  virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
+                           const IntSize& aSize,
+                           const VRHMDSensorState& aSensorState,
+                           const gfx::Rect& aLeftEyeRect,
+                           const gfx::Rect& aRightEyeRect) override;
+
+public:
+  explicit VRDisplayOculus(ovrSession aSession);
+
+protected:
+  virtual ~VRDisplayOculus();
+  void Destroy();
+
+  bool RequireSession();
+  const ovrHmdDesc& GetHmdDesc();
+
+  already_AddRefed<layers::CompositingRenderTargetD3D11> GetNextRenderTarget();
+
+  VRHMDSensorState GetSensorState(double timeOffset);
+
+  ovrHmdDesc mDesc;
+  ovrSession mSession;
+  ovrFovPort mFOVPort[2];
+  ovrTextureSwapChain mTextureSet;
+  nsTArray<RefPtr<layers::CompositingRenderTargetD3D11>> mRenderTargets;
+
+  RefPtr<ID3D11Device> mDevice;
+  RefPtr<ID3D11DeviceContext> mContext;
+  ID3D11VertexShader* mQuadVS;
+  ID3D11PixelShader* mQuadPS;
+  RefPtr<ID3D11SamplerState> mLinearSamplerState;
+  layers::VertexShaderConstants mVSConstants;
+  layers::PixelShaderConstants mPSConstants;
+  RefPtr<ID3D11Buffer> mVSConstantBuffer;
+  RefPtr<ID3D11Buffer> mPSConstantBuffer;
+  RefPtr<ID3D11Buffer> mVertexBuffer;
+  RefPtr<ID3D11InputLayout> mInputLayout;
+
+  bool mIsPresenting;
+  
+  bool UpdateConstantBuffers();
+
+  struct Vertex
+  {
+    float position[2];
+  };
+};
+
+} // namespace impl
+
+class VRDisplayManagerOculus : public VRDisplayManager
+{
+public:
+  static already_AddRefed<VRDisplayManagerOculus> Create();
+  virtual bool Init() override;
+  virtual void Destroy() override;
+  virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost> >& aHMDResult) override;
+protected:
+  VRDisplayManagerOculus()
+    : mOculusInitialized(false)
+  { }
+
+  RefPtr<impl::VRDisplayOculus> mHMDInfo;
+  bool mOculusInitialized;
+  RefPtr<nsIThread> mOculusThread;
+};
+
+} // namespace gfx
+} // namespace mozilla
+
+#endif /* GFX_VR_OCULUS_H */