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/* -*- 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/. */
#ifndef GFX_VR_SERVICE_OCULUSSESSION_H
#define GFX_VR_SERVICE_OCULUSSESSION_H
#include "VRSession.h"
#include "mozilla/gfx/2D.h"
#include "moz_external_vr.h"
#include "nsTArray.h"
#include "oculus/ovr_capi_dynamic.h"
#include "prlink.h"
#include "ShaderDefinitionsD3D11.h" // for VertexShaderConstants and PixelShaderConstants
struct ID3D11Device;
namespace mozilla {
namespace layers {
struct VertexShaderConstants;
struct PixelShaderConstants;
} // namespace layers
namespace gfx {
class OculusSession : public VRSession {
public:
OculusSession();
virtual ~OculusSession();
bool Initialize(mozilla::gfx::VRSystemState& aSystemState,
bool aDetectRuntimesOnly) override;
void Shutdown() override;
void ProcessEvents(mozilla::gfx::VRSystemState& aSystemState) override;
void StartFrame(mozilla::gfx::VRSystemState& aSystemState) override;
bool StartPresentation() override;
void StopPresentation() override;
bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer,
ID3D11Texture2D* aTexture) override;
void VibrateHaptic(uint32_t aControllerIdx, uint32_t aHapticIndex,
float aIntensity, float aDuration) override;
void StopVibrateHaptic(uint32_t aControllerIdx) override;
void StopAllHaptics() override;
private:
bool LoadOvrLib();
void UnloadOvrLib();
bool StartLib(ovrInitFlags aFlags);
void StopLib();
bool StartSession();
void StopSession();
bool StartRendering();
void StopRendering();
bool CreateD3DObjects();
bool CreateShaders();
void DestroyShaders();
void CoverTransitions();
void UpdateVisibility();
bool ChangeVisibility(bool bVisible);
bool InitState(mozilla::gfx::VRSystemState& aSystemState);
void UpdateStageParameters(mozilla::gfx::VRDisplayState& aState);
void UpdateEyeParameters(mozilla::gfx::VRSystemState& aState);
void UpdateHeadsetPose(mozilla::gfx::VRSystemState& aState);
void UpdateControllers(VRSystemState& aState);
void UpdateControllerInputs(VRSystemState& aState,
const ovrInputState& aInputState);
void UpdateHaptics();
void EnumerateControllers(VRSystemState& aState,
const ovrInputState& aInputState);
void UpdateControllerPose(VRSystemState& aState,
const ovrInputState& aInputState);
void UpdateTelemetry(VRSystemState& aSystemState);
bool IsPresentationReady() const;
bool UpdateConstantBuffers();
PRLibrary* mOvrLib;
ovrSession mSession;
ovrInitFlags mInitFlags;
ovrTextureSwapChain mTextureSet;
nsTArray<RefPtr<ID3D11RenderTargetView>> mRTView;
nsTArray<RefPtr<ID3D11Texture2D>> mTexture;
nsTArray<RefPtr<ID3D11ShaderResourceView>> mSRV;
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;
IntSize mPresentationSize;
ovrFovPort mFOVPort[2];
// Most recent HMD eye poses, from start of frame
ovrPosef mFrameStartPose[2];
float mRemainingVibrateTime[2];
float mHapticPulseIntensity[2];
TimeStamp mLastHapticUpdate;
// The timestamp of the last ending presentation
TimeStamp mLastPresentationEnd;
bool mIsPresenting;
};
} // namespace gfx
} // namespace mozilla
#endif // GFX_VR_SERVICE_OCULUSSESSION_H
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