Application: gvSIG desktop

/********************************************************

** Copyright 2002 Earth Resource Mapping Ltd.

** This document contains proprietary source code of

** Earth Resource Mapping Ltd, and can only be used under

** one of the three licenses as described in the

** license.txt file supplied with this distribution.

** See separate license.txt file for license details

** and conditions.

**

** This software is covered by US patent #6,442,298,

** #6,102,897 and #6,633,688.  Rights to use these patents

** is included in the license agreements.

**

** FILE:     $Archive: /NCS/Source/include/NCSJPCPLTMarker.h $

** CREATED:  19/12/2002 3:27:34 PM

** AUTHOR:   Simon Cope

** PURPOSE:  CNCSJPCPLTMarker class header

** EDITS:    [xx] ddMmmyy NAME COMMENTS

 *******************************************************/

#ifndef NCSJPCPLTMARKER_H

#define NCSJPCPLTMARKER_H

#include "NCSJPCMarker.h"

#include "NCSJPCPacketLengthType.h"

#include "NCSJPCNode.h"

        /**

         * CNCSJPCPLTMarker class - the JPC PLT marker.

         *

         * @author       Simon Cope

         * @version      $Revision$ $Author$ $Date$

         */

class NCSJPC_EXPORT_ALL CNCSJPCPLTMarker: public CNCSJPCMarker {

public:

                /** Index of this marker WRT other PLT markers */

        UINT8                m_nZplt;

                /** Number of packet lengths in this marker */

        UINT16                m_nLengths;

                /** Lengths in this PLT are cumulative */

        bool        m_bCumulativeLengths;

                /** PLT's were dynamically generated */

        bool                m_bDynamic;

                /** Length offsets when hashing index */

        UINT32 m_nFirstPacket;

        UINT64 m_nHeaderLengthOffset;

        UINT64 m_nDataLengthOffset;

                /** Default constructor, initialises members */

        CNCSJPCPLTMarker();

                /** Virtual destructor */

        virtual ~CNCSJPCPLTMarker();

                /**

                 * Parse the marker from the JPC codestream.

                 * @param                JPC                        CNCSJPC to use to parse file.

                 * @param                Stream                IOStream to use to parse file.

                 * @return      CNCSError        NCS_SUCCESS, or Error code on failure.

                 */

        virtual CNCSError Parse(class CNCSJPC &JPC, CNCSJPCIOStream &Stream);

                /**

                 * UnParse the marker to the JPC codestream.

                 * @param                Stream                IOStream to use to parse file.

                 * @param                JPC                        CNCSJPC to use to parse file.

                 * @return      CNCSError        NCS_SUCCESS, or Error code on failure.

                 */

        virtual CNCSError UnParse(class CNCSJPC &JPC, CNCSJPCIOStream &Stream);

                /**

                 * Parse the marker from the JPC codestream.

                 * @param                JPC                        CNCSJPC to use to parse file.

                 * @param                Stream                IOStream to use to parse file.

                 * @return      CNCSError        NCS_SUCCESS, or Error code on failure.

                 */

        virtual bool ParseLength(class CNCSJPC &JPC, CNCSJPCIOStream &Stream, UINT16 iLength);

                /**

                 * Assignment operator.

                 * @param                src                        Copy source.

                 * @return      void

                 */

        void CNCSJPCPLTMarker::operator=( const class CNCSJPCPLTMarker& src );

                /**

                 * Allocate the lengths array vector.

                 */

        void AllocLengths(void);

                /**

                 * Free the lengths array vector.

                 */

        void FreeLengths(void);

                /**

                 * Get a pointer to the lengths array vector.

                 */

        std::vector<CNCSJPCPacketLengthType> *GetLengths();

                /**

                 * Add a length to the lengths array.

                 */

        void AddLength(CNCSJPCPacketLengthType &Len);

protected:

        static CNCSJPCNode::CNCSJPCNodeTracker sm_Tracker;

                /** Packet length(s) for tile-part */

        std::vector<CNCSJPCPacketLengthType>        *m_pLengths;

};

#endif // !NCSJPCPLTMARKER_H