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/****************************************************************************
* *
* PrimeSense Sensor 5.x Alpha *
* Copyright (C) 2011 PrimeSense Ltd. *
* *
* This file is part of PrimeSense Sensor. *
* *
* PrimeSense Sensor is free software: you can redistribute it and/or modify*
* it under the terms of the GNU Lesser General Public License as published *
* by the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* PrimeSense Sensor is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with PrimeSense Sensor. If not, see <http://www.gnu.org/licenses/>.*
* *
****************************************************************************/
#ifndef __XN_BUFFER_POOL_H__
#define __XN_BUFFER_POOL_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <XnCore/XnBuffer.h>
#include <XnList.h>
#include <XnLog.h>
#include <XnDDK.h>
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
class XN_DDK_CPP_API XnBufferInPool : public XnBuffer
{
public:
XnBufferInPool() : m_nRefCount(0), m_bDestroy(FALSE) {}
~XnBufferInPool() {}
XnUInt32 m_nID;
private:
friend class XnBufferPool;
XnUInt32 m_nRefCount;
XnBool m_bDestroy;
};
class XN_DDK_CPP_API XnBufferPool
{
public:
XnBufferPool(XnUInt32 nBufferCount);
virtual ~XnBufferPool();
XnStatus Init(XnUInt32 nBufferSize);
virtual void Free();
XnStatus ChangeBufferSize(XnUInt32 nBufferSize);
XnStatus GetBuffer(XnBuffer** ppBuffer);
void AddRef(XnBuffer* pBuffer);
void DecRef(XnBuffer* pBuffer);
inline void Lock() { xnOSEnterCriticalSection(&m_hLock); }
inline void Unlock() { xnOSLeaveCriticalSection(&m_hLock); }
inline XnDumpFile* Dump() { return m_dump; }
protected:
XN_DECLARE_LIST(XnBufferInPool*, XnBuffersList);
void FreeAll(XnBool bForceDestroyOfLockedBuffers);
virtual XnStatus AllocateBuffers() = 0;
virtual void DestroyBuffer(XnBufferInPool* pBuffer) = 0;
protected:
XnUInt32 m_nBufferSize;
XnUInt32 m_nBufferCount;
XnBuffersList m_AllBuffers;
XnBuffersList m_FreeBuffers; // a list of available buffers
XN_CRITICAL_SECTION_HANDLE m_hLock;
XnDumpFile* m_dump;
};
#endif // __XN_BUFFER_POOL_H__
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