DtSubmitOculusViewCallback.h

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/******************************************************************************
** Copyright (c) 2019 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include "vrvVirtualReality/vrvVirtualReality.h"
#include "vrvVirtualReality/DtSubmitViewCallback.h"

#include "OVR_CAPI.h"

namespace makVrv
{
   class DtOculusProvider;

   class DT_DLL_VRVVR DtSubmitOculusViewCallback : public DtSubmitViewCallback
   {
   private:
      DtSubmitOculusViewCallback();

      DtSubmitOculusViewCallback(const DtSubmitOculusViewCallback& orig);

      DtSubmitOculusViewCallback& operator=(const DtSubmitOculusViewCallback&);

   public:
      DtSubmitOculusViewCallback(DtDe& de, DtVirtualRealityPostProcessor& pp, DtVirtualRealityDriver& driver, vrvVirtualReality::DtEye eye);

      virtual ~DtSubmitOculusViewCallback();

   protected:
      virtual void submit(osg::RenderInfo& renderInfo) const;

      virtual void copyTextureToSwapChain(unsigned int srcId, ovrTextureSwapChain& swapChain) const;

      virtual bool initSwapChain() const;

      virtual int initSwapChain(ovrTextureSwapChain* swapChain, int width, int height, ovrTextureFormat format) const;

      virtual unsigned int nextSwapImage(ovrTextureSwapChain& swapChai) const;

      DtOculusProvider* myProvider;
      ovrSession mySession;
      int myWidth;
      int myHeight;

      mutable bool mySwapChainsInitialized;
      mutable ovrTextureSwapChain mySwapChain;
      mutable ovrTextureSwapChain myDepthSwapChain;
      mutable int mySwapChainLength;
   };
}