DtSubmitOculusOverlayCallback.h

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


#pragma once

#include "vrvVirtualReality/vrvVirtualReality.h"
#include "vrvVirtualReality/DtSubmitOverlayCallback.h"

#include "OVR_CAPI.h"

namespace makVrv
{
   class DtOculusProvider;

   class DT_DLL_VRVVR DtSubmitOculusOverlayCallback : public DtSubmitOverlayCallback
   {
   private:
      DtSubmitOculusOverlayCallback();

      DtSubmitOculusOverlayCallback(const DtSubmitOculusOverlayCallback& orig);

      DtSubmitOculusOverlayCallback& operator=(const DtSubmitOculusOverlayCallback&);

   public:
      DtSubmitOculusOverlayCallback(osg::Texture2D* tex, DtDe& de, DtVirtualRealityDriver& driver);

      virtual ~DtSubmitOculusOverlayCallback();

      virtual void setOffsetMatrix(const osg::Matrixd& mat);

      virtual void setFlipOverlay(bool flip);

      virtual void setEnabled(bool enable);

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

      virtual bool initSwapChain() const;

      virtual unsigned int nextSwapImage() const;

      DtOculusProvider* myProvider;
      ovrSession mySession;

      int myWidth;
      int myHeight;

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