DtPostProcessorDrawable.h

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/******************************************************************************
** Copyright (c) 2022 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once


#include <osg/Drawable>

// Get proper local export symbol
#include <vrvPostProcessor/vrvPostProcessor.h>

namespace osg
{
   class State;
}

namespace makVrv 
{
   class DtDe;
   class DtGlProgram;
   class DtGlBuffer;

   class DtCoreGlBufferCreator;
   class DtGlDeleteObjectManager;

   class DT_DLL_VRVPOSTPROCESSOR DtPostProcessorDrawable : public osg::Drawable
   {
   public:
      DtPostProcessorDrawable(DtDe &de);

      DtPostProcessorDrawable(const DtPostProcessorDrawable& orig, const osg::CopyOp& op);

      virtual ~DtPostProcessorDrawable();
   private:
      DtPostProcessorDrawable() = delete;

      DtPostProcessorDrawable(const DtPostProcessorDrawable&) = delete;

      DtPostProcessorDrawable& operator=(const DtPostProcessorDrawable&) = delete;

   public:
      virtual void drawTexturedQuad(bool drawOnly = false) const;

      virtual void beginTexturedQuad() const;

      virtual void endTexturedQuad() const;

      virtual std::string preprocessorDefinesString(void) const;

      virtual DtGlProgram* createProgram(const std::string& path, const std::string& prefixName, const std::string& preprocessor="") const;

      virtual void releaseGLObjects(osg::State* state = 0) const override;

   protected:
       void setupGeometry() const;
   protected:
       DtDe &myDe;
       mutable DtGlBuffer* myMutableVbo = nullptr;

       DtCoreGlBufferCreator& myDtCoreGlBufferCreator;
       DtGlDeleteObjectManager& myGlDeleteObjectManager;
   };
}