DtCellToIndirectGeoMap.h

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


#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtOsgThreadingUtils.h>
#include <vrvOsg/DtCullShaderConfig.h>

#include <boost/unordered_map.hpp>
#include <string>

namespace osg
{
   class Group;
   class Node;
}

namespace makVrv
{
   class DtDe;

   class DtIndirectGeometryCreator;
   class DtIndirectGeoComputeBoundCallbackCreator;
   class DtIndirectVisitorControlGroupCreator;

   class DtCellIndirectGeo;
   struct DtIndirectFadeParameters;

   class DT_DLL_VRVOSG DtCellToIndirectGeoMap
   {
   public:
      virtual ~DtCellToIndirectGeoMap();

      virtual DtCellIndirectGeo* getEntryFor(const osg::Node* node);

      virtual void setName(const std::string& name);
      virtual const std::string& name(void) const;

      virtual const DtCullShaderConfig& cullShaderConfig(void) const;
      virtual DtCullShaderConfig& cullShaderConfig(void);

      virtual void deleteAllEntries(void);

      virtual void keyNodeGettingDeleted(const osg::Node* node);

   protected:
      DtCellToIndirectGeoMap(DtDe& de);

      DtCellToIndirectGeoMap();

      virtual DtCellIndirectGeo* getEntry(const osg::Node* node);

      virtual DtCellIndirectGeo* createEntry(const osg::Node* keyNode,
         bool includeIntersectionGeoInNodePath, 
         bool terrainPatch,
         const DtIndirectFadeParameters& fadeParameters) = 0;

      virtual void deleteEntries();
   protected:
      DtIndirectGeometryCreator& myIndirectGeomCreator;
      DtIndirectGeoComputeBoundCallbackCreator&   myIndirectGeoCallbackCreator;
      DtIndirectVisitorControlGroupCreator&  myIndirectGeoIntersectionGroupCreator;

      Threading::Mutex myMutex;
      typedef boost::unordered_map<const osg::Node*, DtCellIndirectGeo*> KeyToEntryTypeMap;
      KeyToEntryTypeMap myKeyToEntryTypeMap;

   protected:
      DtDe& myDe;

      DtCullShaderConfig myCullShaderConfig;

      std::string myName;
   };
}