activePageTracker.h

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/*******************************************************************************
** Copyright (c) 2010 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/



#pragma once

#include <vrvCore/DtDe.h>

#include <tbb/spin_rw_mutex.h>

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

#include <terrainInterface/terrainPagingGeometry.h>

class DtTerrainSourceTracker;
class btIDebugDraw;

class DT_DLL_vantageTerrainImplementation DtActivePageTracker
{
private:

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

public:
   DtActivePageTracker();

   virtual ~DtActivePageTracker();

   virtual void setDebugDrawer(btIDebugDraw* drawer);

   virtual void drawDebugInfo() const;

   virtual void setWorldPagedOut(bool v);

   virtual void pageInData(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry);

   virtual bool dataAvailable(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry);


   virtual void addTerrainSourceTracker(
      DtTerrainSourceTracker* terrainSourceTracker);

   virtual void removeTerrainSourceTracker(
      DtTerrainSourceTracker* terrainSourceTracker);

   virtual void addIntersectChord(const DtChord& intersectChord);

   virtual void addIntersectSphere(const DtSphere& intersectSphere);

   virtual bool canPageOutData(unsigned int intersectId = 0);

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

   virtual void setIntersectDataLoadExpireTime(const double& expireTime);

protected:

   bool myWorldPagedOut;

   btIDebugDraw* myDebugDrawer;

   DtTerrainSourceTrackerList myTerrainSourceTrackers;


   std::list<DtChord> myIntersectChords;
   std::list<DtSphere> myIntersectSpheres;

   double myIntersectDataLoadExpireTime;

   mutable tbb::spin_rw_mutex myMutex;
};