debugDrawerSharedMemoryManager.h

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/*******************************************************************************
** Copyright (c) 2011 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/

#pragma once

#include "vlutil/vlShmPool.h"
#include "simTerrainDrawer/simTerrainDrawerDefines.h"
#include "simTerrainDrawer/debugDrawerGeometryMemory.h"
#include "simTerrainDrawer/debugDrawerSphereMemory.h"
#include "simTerrainDrawer/debugDrawerLineMemory.h"
#include "simTerrainDrawer/debugDrawerTriangleMemory.h"
#include "vlutil/vlString.h"
#include <vector>

class DtDebugDrawerNameManager;
struct DtDebugMemoryBlockHeader;


class DT_DLL_simTerrainDrawer DtDebugDrawerSharedMemoryManager
{
   public:
      static const int DtDebugDrawerSharedMemoryNoType = 0;
      static const int DtDebugDrawerSharedMemoryAllType = 1;
      static const int DtDebugDrawerSharedMemoryVRFType = 2;
      static const int DtDebugDrawerSharedMemoryBHaveType = 3;

      typedef DtDebugMemoryBlockHeader DtMemoryHeader;

      DtDebugDrawerSharedMemoryManager();

      virtual ~DtDebugDrawerSharedMemoryManager();
      
      virtual void readLock();
      virtual void readUnlock();

      virtual void init(int memoryType, bool clearMemory=false, unsigned long memorySize=3*10485670);

      virtual void push(DtDebugDrawerGeometryMemory* shape);


      virtual void advanceFrameCount();
      virtual unsigned long frameCount() const;

      virtual unsigned int numEmtries();

      virtual unsigned long currentSize();

      virtual const char* getNext(const char* previousPtr, DtDebugDrawerGeometryMemory** shape);

      virtual const std::vector<int> getMemoryBlockIndexList();

      virtual DtString getMemoryBlockName(int index);

      virtual bool pointToMemoryBlock(DtString name);

      virtual void startNewFrame();

   protected:


      unsigned long myMaxSize;

      unsigned long myCurrentSize;

      char* myCurrentMemPtr;

      char* myMemoryPtr;

      DtMemoryHeader* myHeader;

      DtSharedMemoryPoolManager* myManager;
      DtSharedMemoryPoolClient* myClient;
      
      DtDebugDrawerNameManager* myNameManager;

      bool myIsReader;

      DtString myMemoryName;

      int myMemoryType;
};