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 "mozilla/gfx/2D.h" 13 #include "moz_external_vr.h" 14 #include "nsTArray.h" 15 #include "oculus/ovr_capi_dynamic.h" 16 #include "prlink.h" 17 #include "ShaderDefinitionsD3D11.h" // for VertexShaderConstants and PixelShaderConstants 18 19 struct ID3D11Device; 20 21 namespace mozilla { 22 namespace layers { 23 struct VertexShaderConstants; 24 struct PixelShaderConstants; 25 } // namespace layers 26 namespace gfx { 27 28 class OculusSession : public VRSession { 29 public: 30 OculusSession(); 31 virtual ~OculusSession(); 32 33 bool Initialize(mozilla::gfx::VRSystemState& aSystemState, 34 bool aDetectRuntimesOnly) override; 35 void Shutdown() override; 36 void ProcessEvents(mozilla::gfx::VRSystemState& aSystemState) override; 37 void StartFrame(mozilla::gfx::VRSystemState& aSystemState) override; 38 bool StartPresentation() override; 39 void StopPresentation() override; 40 bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer, 41 ID3D11Texture2D* aTexture) override; 42 void VibrateHaptic(uint32_t aControllerIdx, uint32_t aHapticIndex, 43 float aIntensity, float aDuration) override; 44 void StopVibrateHaptic(uint32_t aControllerIdx) override; 45 void StopAllHaptics() override; 46 47 private: 48 bool LoadOvrLib(); 49 void UnloadOvrLib(); 50 bool StartLib(ovrInitFlags aFlags); 51 void StopLib(); 52 bool StartSession(); 53 void StopSession(); 54 bool StartRendering(); 55 void StopRendering(); 56 bool CreateD3DObjects(); 57 bool CreateShaders(); 58 void DestroyShaders(); 59 void CoverTransitions(); 60 void UpdateVisibility(); 61 bool ChangeVisibility(bool bVisible); 62 bool InitState(mozilla::gfx::VRSystemState& aSystemState); 63 void UpdateStageParameters(mozilla::gfx::VRDisplayState& aState); 64 void UpdateEyeParameters(mozilla::gfx::VRSystemState& aState); 65 void UpdateHeadsetPose(mozilla::gfx::VRSystemState& aState); 66 void UpdateControllers(VRSystemState& aState); 67 void UpdateControllerInputs(VRSystemState& aState, 68 const ovrInputState& aInputState); 69 void UpdateHaptics(); 70 void EnumerateControllers(VRSystemState& aState, 71 const ovrInputState& aInputState); 72 void UpdateControllerPose(VRSystemState& aState, 73 const ovrInputState& aInputState); 74 void UpdateTelemetry(VRSystemState& aSystemState); 75 bool IsPresentationReady() const; 76 bool UpdateConstantBuffers(); 77 78 PRLibrary* mOvrLib; 79 ovrSession mSession; 80 ovrInitFlags mInitFlags; 81 ovrTextureSwapChain mTextureSet; 82 nsTArray<RefPtr<ID3D11RenderTargetView>> mRTView; 83 nsTArray<RefPtr<ID3D11Texture2D>> mTexture; 84 nsTArray<RefPtr<ID3D11ShaderResourceView>> mSRV; 85 86 ID3D11VertexShader* mQuadVS; 87 ID3D11PixelShader* mQuadPS; 88 RefPtr<ID3D11SamplerState> mLinearSamplerState; 89 layers::VertexShaderConstants mVSConstants; 90 layers::PixelShaderConstants mPSConstants; 91 RefPtr<ID3D11Buffer> mVSConstantBuffer; 92 RefPtr<ID3D11Buffer> mPSConstantBuffer; 93 RefPtr<ID3D11Buffer> mVertexBuffer; 94 RefPtr<ID3D11InputLayout> mInputLayout; 95 96 IntSize mPresentationSize; 97 ovrFovPort mFOVPort[2]; 98 99 // Most recent HMD eye poses, from start of frame 100 ovrPosef mFrameStartPose[2]; 101 102 float mRemainingVibrateTime[2]; 103 float mHapticPulseIntensity[2]; 104 TimeStamp mLastHapticUpdate; 105 106 // The timestamp of the last ending presentation 107 TimeStamp mLastPresentationEnd; 108 bool mIsPresenting; 109 }; 110 111 } // namespace gfx 112 } // namespace mozilla 113 114 #endif // GFX_VR_SERVICE_OCULUSSESSION_H 115