DtGlTextureMemoryTracker.h

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/*****************************************************************************
* Copyright (c) 2021 MAK Technologies, Inc.
* All rights reserved.
*****************************************************************************/


#pragma once
#include <vrvGraphicsUtils/vrvGraphicsUtils.h>

#include <vrvGraphicsUtils/DtGlTrackedTextureProperties.h>

#include <unordered_map>
#include <unordered_set>
#include <iostream>

namespace makVrv
{
   class DT_DLL_VRVGRAPHICSUTILS DtGlTextureMemoryTracker
   {
   public:
      DtGlTextureMemoryTracker();

      virtual ~DtGlTextureMemoryTracker();

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

   public:
      virtual void textureSizeChanged(unsigned int textureId);

      virtual void textureDeleted(unsigned int textureId);

      virtual void textureHandleResidencyChanged(unsigned int textureId, bool residentOrNotResident);

      virtual const DtGlTrackedTextureProperties& trackedProperties(void) const;

      virtual void printStats(std::ostream& outputStream) const;

      virtual const std::unordered_map<unsigned int, int>& textures(void) const;
   public:
      static void addTextureOfInterest(const std::string& name);
 
   protected:
      std::unordered_map<unsigned int, int> myTrackedTextures;

      DtGlTrackedTextureProperties myProperties;

      static std::unordered_set<std::string> theTexturesOfInterest;
   };
}