terrainSourceTracker.h

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


#pragma once

#include <vantageTerrainImplementation/terrainSourcePager.h>
#include <vantageTerrainImplementation/vantageTerrainImplementationDefines.h>
#include <vantageTerrainImplementation/osgToBullet.h>

#include <terrainInterface/terrainPagingGeometry.h>

#include <vrfutil/terrainInterfaceConfig.h>

#include <tbb/spin_rw_mutex.h>
#include <boost/unordered_map.hpp>

class btIDebugDraw;


typedef boost::unordered_multimap<DtNodeId, boost::shared_ptr<btCollisionObject> > DtNodeToCollObjMMap;
typedef std::pair<DtNodeToCollObjMMap::iterator, DtNodeToCollObjMMap::iterator> 
DtNodeToCollObjRangePair;

class DtVantageTerrainEngine;

class DT_DLL_vantageTerrainImplementation DtTerrainSourceTracker
{
public:

   DtTerrainSourceTracker(DtVantageTerrainEngine*, DtPagerCommandQueue* commandQueue);

   virtual ~DtTerrainSourceTracker();

   virtual DtTerrainInterfaceConfig& configOptions();

   virtual bool dataAvailable(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry) = 0;

   virtual void pageInData(DtPagingMetaDataPtr metaData, 
      DtTerrainPagingGeometryPtr geometry) = 0;

   virtual void drawDebugInfo(btIDebugDraw* debugDrawer) = 0;

   //Should return true if the tracker is capable of paging out data.
   virtual bool canPageOutData(DtTerrainIntersectIDType intersectId) = 0;

   virtual DtTerrainIntersectIDType findOldestPagedData(unsigned int& numTriangles) = 0;

   virtual void pageOutOldestData(const int priority) = 0;

   virtual void addNodesToCollisionMapping(DtNodeId node, 
      DtCollisionObjectList* collObjList);

   virtual void removeNodeToCollisionMappings(DtNodeId node);

   virtual DtCollisionObjectList collisionObjectsForNode(DtNodeId node);

   virtual const Coordinate_System* localCS() const;

   virtual bool setDrawMode(DtDrawMode);
   virtual void setLabel(const DtString&);

   virtual void printInfo() const;

protected:
   DtString myLabel;

   DtTerrainInterfaceConfig myConfig;

   DtPagerCommandQueue* myCommandQueue;

   DtNodeToCollObjMMap myNodeToCollObjMMap;

   mutable tbb::spin_rw_mutex myMutex;

   DtVantageTerrainEngine* myVantageTerrainEngine;
};