DtInstanceContainer.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvIndirectRendering/vrvIndirectRendering.h>
#include <vrvIndirectRendering/DtInstance.h>
#include <vrvIndirectRendering/DtGeometrySpecification.h>

namespace makVrv
{
   typedef std::vector<Matrix4_64> VectorMatrix4_64;
   
   struct DtAggregateModelInfo;

   class DT_DLL_VRVINDIRECTRENDERING DtInstanceContainer
   {
   public:
      DtInstanceContainer();

      virtual ~DtInstanceContainer();

      virtual void addInstance(const DtInstance_64& instance64, const DtPerGeomInstances& perGeomTemplates,
         int geometryLocations, int &outPerGeomTemplateOffset, int &outSize);
      virtual void removeAllInstances(void);
      virtual const Instances& instances(void) const;
      virtual const VectorInts& instanceModelIds(void) const;

      virtual const DtInstance& operator[](int index) const;

      virtual int getMinModelAdded();

      virtual void resetMinModelAdded();

      int getNumUniqueGeometriesForModel(int modelId);

      virtual DtPerGeomInstances& perGeomInstances(void);

      virtual int getNumUniqueGeometries();

      virtual void incrementNumUniqueGeometries(int number);

      const std::vector<int>& modelAddedOrder();
      
   protected:
      Instances myInstances;
      VectorInts myModelIds;
      SetInts myUniqueModels;
      MapIntToInt myModelIdToGeometryCount;
      int myMinModelAdded;
      DtPerGeomInstances myPerGeomInstances;
      int myNumUniqueGeometries;

      std::vector<int> myModelAddedOrder;
   };
}