tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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OculusSession.h (3901B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef GFX_VR_SERVICE_OCULUSSESSION_H
      8 #define GFX_VR_SERVICE_OCULUSSESSION_H
      9 
     10 #include "VRSession.h"
     11 
     12 #include "moz_external_vr.h"
     13 #include "mozilla/TimeStamp.h"
     14 #include "mozilla/gfx/2D.h"
     15 #include "nsTArray.h"
     16 #include "oculus/ovr_capi_dynamic.h"
     17 #include "prlink.h"
     18 #include "ShaderDefinitionsD3D11.h"  // for VertexShaderConstants and PixelShaderConstants
     19 
     20 struct ID3D11Device;
     21 
     22 namespace mozilla {
     23 namespace layers {
     24 struct VertexShaderConstants;
     25 struct PixelShaderConstants;
     26 }  // namespace layers
     27 namespace gfx {
     28 
     29 class OculusSession : public VRSession {
     30 public:
     31  OculusSession();
     32  virtual ~OculusSession();
     33 
     34  bool Initialize(mozilla::gfx::VRSystemState& aSystemState,
     35                  bool aDetectRuntimesOnly) override;
     36  void Shutdown() override;
     37  void ProcessEvents(mozilla::gfx::VRSystemState& aSystemState) override;
     38  void StartFrame(mozilla::gfx::VRSystemState& aSystemState) override;
     39  bool StartPresentation() override;
     40  void StopPresentation() override;
     41  bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer,
     42                   ID3D11Texture2D* aTexture) override;
     43  void VibrateHaptic(uint32_t aControllerIdx, uint32_t aHapticIndex,
     44                     float aIntensity, float aDuration) override;
     45  void StopVibrateHaptic(uint32_t aControllerIdx) override;
     46  void StopAllHaptics() override;
     47 
     48 private:
     49  bool LoadOvrLib();
     50  void UnloadOvrLib();
     51  bool StartLib(ovrInitFlags aFlags);
     52  void StopLib();
     53  bool StartSession();
     54  void StopSession();
     55  bool StartRendering();
     56  void StopRendering();
     57  bool CreateD3DObjects();
     58  bool CreateShaders();
     59  void DestroyShaders();
     60  void CoverTransitions();
     61  void UpdateVisibility();
     62  bool ChangeVisibility(bool bVisible);
     63  bool InitState(mozilla::gfx::VRSystemState& aSystemState);
     64  void UpdateStageParameters(mozilla::gfx::VRDisplayState& aState);
     65  void UpdateEyeParameters(mozilla::gfx::VRSystemState& aState);
     66  void UpdateHeadsetPose(mozilla::gfx::VRSystemState& aState);
     67  void UpdateControllers(VRSystemState& aState);
     68  void UpdateControllerInputs(VRSystemState& aState,
     69                              const ovrInputState& aInputState);
     70  void UpdateHaptics();
     71  void EnumerateControllers(VRSystemState& aState,
     72                            const ovrInputState& aInputState);
     73  void UpdateControllerPose(VRSystemState& aState,
     74                            const ovrInputState& aInputState);
     75  void UpdateTelemetry(VRSystemState& aSystemState);
     76  bool IsPresentationReady() const;
     77  bool UpdateConstantBuffers();
     78 
     79  PRLibrary* mOvrLib;
     80  ovrSession mSession;
     81  ovrInitFlags mInitFlags;
     82  ovrTextureSwapChain mTextureSet;
     83  nsTArray<RefPtr<ID3D11RenderTargetView>> mRTView;
     84  nsTArray<RefPtr<ID3D11Texture2D>> mTexture;
     85  nsTArray<RefPtr<ID3D11ShaderResourceView>> mSRV;
     86 
     87  ID3D11VertexShader* mQuadVS;
     88  ID3D11PixelShader* mQuadPS;
     89  RefPtr<ID3D11SamplerState> mLinearSamplerState;
     90  layers::VertexShaderConstants mVSConstants;
     91  layers::PixelShaderConstants mPSConstants;
     92  RefPtr<ID3D11Buffer> mVSConstantBuffer;
     93  RefPtr<ID3D11Buffer> mPSConstantBuffer;
     94  RefPtr<ID3D11Buffer> mVertexBuffer;
     95  RefPtr<ID3D11InputLayout> mInputLayout;
     96 
     97  IntSize mPresentationSize;
     98  ovrFovPort mFOVPort[2];
     99 
    100  // Most recent HMD eye poses, from start of frame
    101  ovrPosef mFrameStartPose[2];
    102 
    103  float mRemainingVibrateTime[2];
    104  float mHapticPulseIntensity[2];
    105  TimeStamp mLastHapticUpdate;
    106 
    107  // The timestamp of the last ending presentation
    108  TimeStamp mLastPresentationEnd;
    109  bool mIsPresenting;
    110 };
    111 
    112 }  // namespace gfx
    113 }  // namespace mozilla
    114 
    115 #endif  // GFX_VR_SERVICE_OCULUSSESSION_H