DtPixelBufferObject.h

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/******************************************************************************
** Copyright (c) 2009 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvGraphics/vrvGraphics.h>

namespace makVrv
{

   class DT_DLL_VRVGRAPHICS DtPixelBufferObject
   {
   public:

      DtPixelBufferObject();
      ~DtPixelBufferObject();

      void downloadFromTexture(unsigned int texture, int w, int h);

      void getData(void* data);

      unsigned int bufferSize() const;

      virtual void setupPixelBufferObjects( int numBuffers );

   protected:
      std::vector<unsigned int> myPbos;
      std::vector<GLsync> myFences;
      mutable int myMutableWriteIndex;

      mutable int myMutableReadIndex;

      unsigned int myBufferSize;
   };
}