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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_FRAME_STREAM_H__
#define __XN_FRAME_STREAM_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnDeviceStream.h"
#include "XnFrameBufferManager.h"
//---------------------------------------------------------------------------
// Types
//---------------------------------------------------------------------------
/** Represents a stream that is frame-based. */
class XN_DDK_CPP_API XnFrameStream : public XnDeviceStream
{
public:
XnFrameStream(const XnChar* csType, const XnChar* csName);
~XnFrameStream() { Free(); }
XnStatus SetBufferPool(XnBufferPool* pBufferPool);
//---------------------------------------------------------------------------
// Getters
//---------------------------------------------------------------------------
inline XnUInt32 GetFPS() const { return (XnUInt32)m_FPS.GetValue(); }
//---------------------------------------------------------------------------
// Overridden Methods
//---------------------------------------------------------------------------
XnStatus Init();
XnStatus Free();
XnStatus CreateStreamData(XnStreamData** ppStreamData);
XnStatus Read(XnStreamData* pStreamOutput);
//---------------------------------------------------------------------------
// Getters
//---------------------------------------------------------------------------
inline XnFrameBufferManager* GetTripleBuffer() { return m_pBufferManager; }
protected:
//---------------------------------------------------------------------------
// Properties Getters
//---------------------------------------------------------------------------
inline XnActualIntProperty& FPSProperty() { return m_FPS; }
//---------------------------------------------------------------------------
// Setters
//---------------------------------------------------------------------------
virtual XnStatus SetFPS(XnUInt32 nFPS);
//---------------------------------------------------------------------------
// Virtual Methods
//---------------------------------------------------------------------------
virtual XnStatus PostProcessFrame(XnStreamData* /*pFrameData*/) { return XN_STATUS_OK; }
virtual XnStatus ReallocTripleFrameBuffer();
//---------------------------------------------------------------------------
// Overridden Methods
//---------------------------------------------------------------------------
XnStatus ReadImpl(XnStreamData* pStreamOutput);
private:
XnStatus OnRequiredSizeChanging();
XnStatus GetLastRawFrame(XnDynamicSizeBuffer* gbValue);
static XnStatus XN_CALLBACK_TYPE SetFPSCallback(XnActualIntProperty* pSenser, XnUInt64 nValue, void* pCookie);
static XnStatus XN_CALLBACK_TYPE RequiredSizeChangedCallback(const XnProperty* pSenser, void* pCookie);
static void XN_CALLBACK_TYPE OnTripleBufferNewData(XnFrameBufferManager* pTripleBuffer, XnUInt64 nTimestamp, void* pCookie);
static XnStatus XN_CALLBACK_TYPE GetLastRawFrameCallback(const XnGeneralProperty* pSender, const XnGeneralBuffer& gbValue, void* pCookie);
//---------------------------------------------------------------------------
// Members
//---------------------------------------------------------------------------
XnFrameBufferManager* m_pBufferManager;
XnBufferPool* m_pBufferPool;
XnBool m_bPoolAllocated;
XnUInt32 m_nLastReadFrame; // the ID that was given
XnActualIntProperty m_IsFrameStream;
XnActualIntProperty m_FPS;
XnGeneralProperty m_LastRawFrame;
XnBool m_bTripleBufferReallocated;
};
#endif //__XN_FRAME_STREAM_H__
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