DtGlVaoManager.h

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


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvUtil/DtVirtualBaseClassCreator.h>

#include <vrvUtil/DtSignalConnectionManager.h>

#include <vrvGraphicsUtils/DtGlObjects.h>

#include <unordered_map>
#include <tuple>

namespace makVrv
{
   // Forward declarations.
   class DtDe;
   class DtOsgToGlContextTracker;
   class DtIndirectLog;
   class DtGlDeleteObjectManager;

   class DtGlVaoManager;

   typedef DtVirtualBaseClassCreator<DtGlVaoManager> DtGlVaoManagerCreator;

   template <>
   inline const char* creatorTypeName<DtGlVaoManager>(void) { return "DtGlVaoManagerCreator"; }

   class DT_DLL_VRVOSG DtGlVaoManager
   {
   public:
      DtGlVaoManager(makVrv::DtDe& de);

      virtual ~DtGlVaoManager();

   private:
      DtGlVaoManager() = delete;
      DtGlVaoManager(const DtGlVaoManager&) = delete;
      DtGlVaoManager& operator=(const DtGlVaoManager&) = delete;

   public:
      virtual unsigned int getOrCreateVao(bool& created);

      virtual void clearVaos(void);

   protected:
      virtual void slot_contextAboutToBeDestroyed(const void* glContext);

      virtual void deleteVao(const void* glContext);
   protected:
      DtDe& myDe;

      DtSignalConnectionManager myConnections;

      std::unordered_map<const void*, DtGlVaoAndContext> myGlContextToVao;

      DtOsgToGlContextTracker& myOsgToGlContextTracker;

      DtIndirectLog& myIndirectLog;

      DtGlDeleteObjectManager& myGlDeleteObjectManager;
   };
}