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#ifndef __XNLINKENCODEDDATAUNIT_H__
#define __XNLINKENCODEDDATAUNIT_H__
#include "XnLinkDefs.h"
#include "XnLinkProto.h"
#include "XnLinkProtoUtils.h"
#include <XnStatus.h>
namespace xn
{
class LinkMsgEncoder
{
public:
LinkMsgEncoder();
virtual ~LinkMsgEncoder();
//nMaxMsgSize includes all message headers (not link layer headers). nPacketSize is total link layer packet size, including link layer header.
virtual XnStatus Init(XnUInt32 nMaxMsgSize, XnUInt16 nPacketSize);
virtual void Shutdown();
virtual void BeginEncoding(XnUInt16 nMsgType,
XnUInt16 nBasePacketID,
XnUInt16 nStreamID,
XnLinkFragmentation firstPacketFrag = XN_LINK_FRAG_BEGIN,
XnUInt16 nCID = 0);
virtual void EncodeData(const void* pSourceData, XnUInt32 nSize);
virtual void EndEncoding(XnLinkFragmentation lastPacketFrag = XN_LINK_FRAG_END);
virtual const void* GetEncodedData() const;
virtual XnUInt32 GetEncodedSize() const;
virtual XnUInt32 GetMaxMsgSize() const;
virtual XnUInt16 GetMaxPacketSize() const;
//Returns the packet ID of the current packet. Only valid after encoding.
virtual XnUInt16 GetPacketID() const;
//This sets the packet ID of the CURRENT packet only. Only valid after encoding.
virtual void SetPacketID(XnUInt16 nPacketID);
private:
XnUInt32 m_nMaxMsgSize;
XnUInt16 m_nMaxPacketSize;
XnUInt32 m_nMaxNumPackets;
XnUInt32 m_nBufferSize;
/******* This points to the actual encoded data ******/
XnUInt8* m_pOutputBuffer;
/*****************************************************/
union
{
XnUInt8* m_pCurrPacketBuffer;
LinkPacketHeader* m_pCurrPacket;
};
LinkPacketHeader m_packetHeader;
XnUInt32 m_nEncodedSize;
};
}
#endif // __XNLINKENCODEDDATAUNIT_H__
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