activePageTracker.h

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/*******************************************************************************
** Copyright (c) 2024 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include <vantageTerrainImplementation/vantageTerrainImplementationDefines.h>
#include <vantageTerrainImplementation/vantageTerrainImplementationUtil.h>
#include <vrfutil/sphere2.h>

#include <terrainInterface/terrainPagingGeometry.h>
#include <terrainInterface/terrainIntersectOptions.h>

#include <terrainInterface/debugDrawTerrainOutputInterface.h>

#include <tbb/spin_rw_mutex.h>
#include <tbb/task_arena.h>

class DtTerrainSourceTracker;
class DtPrintPagingInfoCommand;
class DtVantageTerrainEngine;

namespace makVrv
{
   class DtDe;
}

class DT_DLL_vantageTerrainImplementation DtActivePageTracker
{
private:

   DtActivePageTracker(const DtActivePageTracker&);
   DtActivePageTracker& operator=(const DtActivePageTracker&);

public:
   DtActivePageTracker();

   virtual ~DtActivePageTracker();

   virtual void setVantageTerrainEngine(DtVantageTerrainEngine*);

   virtual void pageInData(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry,
      DtTerrainCategoryMask terrainCategories = DtTerrainCategoryAll,
      DtTerrainIntersectOptions::Fidelity = DtTerrainIntersectOptions::MAX_FIDELITY);

   virtual bool pageInUnavailableData(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry,
      DtTerrainCategoryMask terrainCategories = DtTerrainCategoryAll,
      DtTerrainIntersectOptions::Fidelity = DtTerrainIntersectOptions::MAX_FIDELITY);

   virtual bool dataAvailable(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry,
      DtTerrainCategoryMask terrainCategories = DtTerrainCategoryAll,
      DtTerrainIntersectOptions::Fidelity = DtTerrainIntersectOptions::MAX_FIDELITY);


   virtual void addTerrainSourceTracker(
      DtTerrainSourceTracker* terrainSourceTracker);

   virtual void removeTerrainSourceTracker(
      DtTerrainSourceTracker* terrainSourceTracker);

   virtual bool canPageOutData(DtTerrainIntersectIDType intersectId = 0);

   virtual unsigned int pageOutData(const int priority, 
      unsigned int numTrianglesToPageOut, DtTerrainIntersectIDType intersectId);

   virtual void setIntersectDataLoadExpireTime(const double& expireTime);

   virtual bool printInfo() const;

   virtual void getPageInData(DtNodeBoundingList& nodeBoundingList);

   virtual void getPageOutData(DtNodeBoundingList& nodeBoundingList);
   
   virtual void getProceduralTreeTile(DtDebugDrawTerrainOutputInterface::terrainLineList& nodeBoundingList);

   virtual void setUseTbb(bool value);

   virtual void clearCache();

protected:
   DtVantageTerrainEngine* myTerrainEngine;
   DtPrintPagingInfoCommand* myPrintInfoCommand;

   DtTerrainSourceTrackerList myTerrainSourceTrackers;

   double myIntersectDataLoadExpireTime;

   mutable tbb::spin_rw_mutex myMutex;

   tbb::task_arena myArena;

   bool myUseTbb;
};