DtGlTextureUtils.h

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


#pragma once
#include <vrvGraphicsUtils/vrvGraphicsUtils.h>
#include <GL/glew.h>
#include <map>

namespace makVrv
{
   class DT_DLL_VRVGRAPHICSUTILS DtGLTextureUtils
   {
   public:
      typedef std::map<unsigned int, int> TexIDToCount;
      typedef std::map<void*, TexIDToCount> ContextToTexID;

      static void MakeResidentIfNecessary(void* gContext, GLuint textureID);
      static bool MakeNonResidentIfNecessary(void* gContext, GLuint textureID, bool canDelete);
      static GLuint64 GetAddress(GLuint textureID);
      static bool isTexture(GLuint textureID);
      static void ContextToBeDeleted(void* gContext);

      static ContextToTexID theTextureCountByContext;
      static TexIDToCount theTextureCountAcrossContexts;
   };
}