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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_DATA_PROCESSOR_H__
#define __XN_DATA_PROCESSOR_H__
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnDeviceSensor.h"
#include "XnDeviceSensorProtocol.h"
#include <XnLog.h>
/**
* Base class for all data processors.
*/
class XnDataProcessor
{
public:
XnDataProcessor(XnDevicePrivateData* pDevicePrivateData, const XnChar* csName);
virtual ~XnDataProcessor();
//---------------------------------------------------------------------------
// Methods
//---------------------------------------------------------------------------
public:
/**
* Initializes a Data Processor.
*
* @param pDevicePrivateData [in] A pointer to the device.
* @param csName [in] The name of the stream.
*/
virtual XnStatus Init();
/**
* Handles some data from this stream.
*
* @param pHeader [in] A pointer to current packet header.
* @param pData [in] A pointer to the data.
* @param nDataOffset [in] The offset of this data chunk inside current packet.
* @param nDataSize [in] Size of the data in bytes.
*/
void ProcessData(const XnSensorProtocolResponseHeader* pHeader, const XnUChar* pData, XnUInt32 nDataOffset, XnUInt32 nDataSize);
//---------------------------------------------------------------------------
// Virtual Functions
//---------------------------------------------------------------------------
protected:
virtual void ProcessPacketChunk(const XnSensorProtocolResponseHeader* pHeader, const XnUChar* pData, XnUInt32 nDataOffset, XnUInt32 nDataSize) = 0;
virtual void OnPacketLost();
//---------------------------------------------------------------------------
// Utility Functions
//---------------------------------------------------------------------------
protected:
/*
* Gets a calculated timestamp from the device timestamp.
*
* @param nDeviceTimeStamp [in] The device TS to translate.
*/
virtual XnUInt64 GetTimeStamp(XnUInt32 nDeviceTimeStamp);
//---------------------------------------------------------------------------
// Class Members
//---------------------------------------------------------------------------
protected:
XnDevicePrivateData* m_pDevicePrivateData;
/* The number of bytes received so far (since last time this member was reset). */
XnUInt32 m_nBytesReceived;
/* Stores last packet ID */
XnUInt8 m_nLastPacketID;
/* The name of the stream. */
const XnChar* m_csName;
private:
/* Data used for calculating timestamps. */
XnTimeStampData m_TimeStampData;
};
#endif //__XN_DATA_PROCESSOR_H__
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