DtPrimitiveRenderer.h

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/******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once

#include <vrvGraphics/vrvGraphics.h>

namespace makVrv
{

   class DtOverlayResourceProvider;

   class DT_DLL_VRVGRAPHICS DtPrimitiveRenderer
   {
   public:

      enum RenderModes
      {
         RenderMode_VertexBufferObject = 1,
         RenderMode_SortedVertexBufferObject,      
         RenderModes_End
      };

      enum OrderModes
      {
         OrderMode_None = 0,
         OrderMode_Queue,
         OrderMode_Group,
         OrderModes_end
      };

      DtPrimitiveRenderer(DtOverlayResourceProvider& provider);
      virtual ~DtPrimitiveRenderer();

      virtual int numberOfPrimitives() const = 0;

      virtual void releaseResources() = 0;

      virtual bool isRenderModeSupported(int mode) = 0;

      // Set the render mode
      void setRenderMode(int mode);

      // Get the render mode
      int renderMode() const;

      // Get the number of render modes
      int numberOfRenderModes() const;

      void setOrderMode(int mode);

      int orderMode() const;  

      void addGroupRef( unsigned int group );

      void removeGroupRef( unsigned int group );

      unsigned int groupCount() const;

   protected:

      DtOverlayResourceProvider& myProvider;
      int myRenderMode;
      int myOrderMode;
      bool myForceUpdate;

   };
}