mirror of
https://github.com/nillerusr/source-engine.git
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137 lines
4.8 KiB
C++
137 lines
4.8 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: The implementation of ISourceVirtualReality, which provides utility
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// functions for VR including head tracking, window/viewport information,
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// rendering information, and distortion
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//
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//=============================================================================
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#ifndef SOURCEVIRTUALREALITY_H
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#define SOURCEVIRTUALREALITY_H
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#if defined( _WIN32 )
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#pragma once
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#endif
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#include "tier3/tier3.h"
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#include "sourcevr/isourcevirtualreality.h"
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#include "materialsystem/itexture.h"
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#include "materialsystem/MaterialSystemUtil.h"
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#include "openvr/openvr.h"
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// this is a callback so we can regenerate the distortion texture whenever we need to
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class CDistortionTextureRegen : public ITextureRegenerator
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{
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public:
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CDistortionTextureRegen( vr::Hmd_Eye eEye ) : m_eEye( eEye ) {}
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virtual void RegenerateTextureBits( ITexture *pTexture, IVTFTexture *pVTFTexture, Rect_t *pSubRect ) OVERRIDE;
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virtual void Release() OVERRIDE {}
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private:
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vr::Hmd_Eye m_eEye;
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};
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//-----------------------------------------------------------------------------
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// The implementation
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//-----------------------------------------------------------------------------
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class CSourceVirtualReality: public CTier3AppSystem< ISourceVirtualReality >
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{
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typedef CTier3AppSystem< ISourceVirtualReality > BaseClass;
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public:
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CSourceVirtualReality();
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~CSourceVirtualReality();
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//---------------------------------------------------------
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// Initialization and shutdown
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//---------------------------------------------------------
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//
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// IAppSystem
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//
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virtual bool Connect( CreateInterfaceFn factory );
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virtual void Disconnect();
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virtual void * QueryInterface( const char *pInterfaceName );
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// these will come from the engine
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virtual InitReturnVal_t Init();
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virtual void Shutdown();
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//---------------------------------------------------------
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// ISourceVirtualReality implementation
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//---------------------------------------------------------
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virtual bool ShouldRunInVR() OVERRIDE;
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virtual bool IsHmdConnected() OVERRIDE;
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virtual void GetViewportBounds( VREye eEye, int *pnX, int *pnY, int *pnWidth, int *pnHeight ) OVERRIDE;
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virtual bool DoDistortionProcessing ( VREye eEye ) OVERRIDE;
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virtual bool CompositeHud ( VREye eEye, float ndcHudBounds[4], bool bDoUndistort, bool bBlackout, bool bTranslucent ) OVERRIDE;
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virtual VMatrix GetMideyePose() OVERRIDE;
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virtual bool SampleTrackingState ( float PlayerGameFov, float fPredictionSeconds ) OVERRIDE;
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virtual bool GetEyeProjectionMatrix ( VMatrix *pResult, VREye, float zNear, float zFar, float fovScale ) OVERRIDE;
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virtual bool WillDriftInYaw() OVERRIDE;
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virtual bool GetDisplayBounds( VRRect_t *pRect ) OVERRIDE;
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virtual VMatrix GetMidEyeFromEye( VREye eEye ) OVERRIDE;
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virtual int GetVRModeAdapter() OVERRIDE;
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virtual void CreateRenderTargets( IMaterialSystem *pMaterialSystem ) OVERRIDE;
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virtual void ShutdownRenderTargets() OVERRIDE;
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virtual ITexture *GetRenderTarget( VREye eEye, EWhichRenderTarget eWhich ) OVERRIDE;
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virtual void GetRenderTargetFrameBufferDimensions( int & nWidth, int & nHeight ) OVERRIDE;
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virtual bool Activate() OVERRIDE;
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virtual void Deactivate() OVERRIDE;
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virtual bool ShouldForceVRMode( ) OVERRIDE;
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virtual void SetShouldForceVRMode( ) OVERRIDE;
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void RefreshDistortionTexture();
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void AcquireNewZeroPose();
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bool StartTracker();
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void StopTracker();
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bool ResetTracking(); // Called to reset tracking
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// makes sure we've initialized OpenVR so we can use
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// m_pHmd
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bool EnsureOpenVRInited();
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// Prefer this to the convar so that convar will stick for the entire
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// VR activation. We can't lazy-crate render targets and don't
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// want to create the "just in case" somebody turns on this experimental
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// mode
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bool UsingOffscreenRenderTarget() const { return m_bUsingOffscreenRenderTarget; }
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vr::IVRSystem * GetHmd() { return m_pHmd; }
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private:
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bool m_bActive;
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bool m_bShouldForceVRMode;
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bool m_bUsingOffscreenRenderTarget;
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CDistortionTextureRegen m_textureGeneratorLeft;
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CDistortionTextureRegen m_textureGeneratorRight;
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CTextureReference g_StereoGuiTexture;
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CTextureReference m_pDistortionTextureLeft;
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CTextureReference m_pDistortionTextureRight;
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CTextureReference m_pPredistortRT;
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CTextureReference m_pPredistortRTDepth;
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CMaterialReference m_warpMaterial;
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CMaterialReference m_DistortLeftMaterial;
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CMaterialReference m_DistortRightMaterial;
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CMaterialReference m_DistortHUDLeftMaterial;
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CMaterialReference m_DistortHUDRightMaterial;
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CMaterialReference m_InWorldUIMaterial;
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CMaterialReference m_InWorldUIOpaqueMaterial;
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CMaterialReference m_blackMaterial;
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vr::IVRSystem *m_pHmd;
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vr::IVRExtendedDisplay *m_pExtDisplay;
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vr::IVRChaperone *m_pChap;
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bool m_bHaveValidPose;
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VMatrix m_ZeroFromHeadPose;
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};
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#endif // SOURCEVIRTUALREALITY_H
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