Application: gvSIG desktop

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

** Copyright 2003 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/NCSJPCCodeBlock.h $

** CREATED:  12/02/2003 3:27:34 PM

** AUTHOR:   Simon Cope

** PURPOSE:  CNCSJPCCodeBlock class header

** EDITS:    [xx] ddMmmyy NAME COMMENTS

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

#ifndef NCSJPCCODEBLOCK_H

#define NCSJPCCODEBLOCK_H

#ifndef NCSJPCTYPES_H

#include "NCSJPCTypes.h"

#endif // NCSJPCTYPES_H

#include "NCSJPCCodingStyleParameter.h"

#include "NCSJPCQuantizationParameter.h"

#ifndef NCSJPCNODE_H

#include "NCSJPCNode.h"

#endif // NCSJPCNODE_H

#ifndef NCSJPCT1CODER_H

#include "NCSJPCT1Coder.h"

#endif // NCSJPCT1CODER_H

        /**

         * CNCSJPCCodeBlock class - the JPC codestream CodeBlock.

         *

         * @author       Simon Cope

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

         */

class NCSJPC_EXPORT_ALL CNCSJPCCodeBlock: public CNCSJPCNode {

public:

                /** SubBand for this code block */

        class CNCSJPCSubBand *m_pSubBand;

                /** Lblock value - UINT8 represents <=256bits LENGTH field, = 32 bytes */

        UINT8        m_nLblock;

                /** Codeblock has zero width or height */

        bool        m_bZeroSize;

                /** Segments for this codeblock */

        std::vector<CNCSJPCSegment>        m_Segments;

                /** Next Segments for this codeblock */

        std::vector<CNCSJPCSegment>        m_NextSegments;

                /** Codeblock number within subband */

        UINT32        m_nCB;

                /** Layer # first included on */

        UINT32        m_nLayerIncluded;

                /** Number of passes included */

        UINT8        m_nPasses;

                /** Number of zero bits */

        UINT8        m_nZeroBits;

                /** Default Constructor */

        CNCSJPCCodeBlock();

                /** Copy Constructor */

        CNCSJPCCodeBlock(const CNCSJPCCodeBlock &s);

                /**

                 * Constructor

                 * @param pSubBand        Parent subband this block belongs to

                 * @param nCB                Codeblock number within this subband

                 */

        CNCSJPCCodeBlock(CNCSJPCSubBand *pSubBand, UINT32 nCB);

                /** Virtual destructor */

        virtual ~CNCSJPCCodeBlock();

                /**

                 * Init

                 * @param pSubBand        Parent subband this block belongs to

                 * @param nCB                Codeblock number within this subband

                 */

        void Init(CNCSJPCSubBand *pSubBand, UINT32 nCB);

                /**

                 * Read a BufferType line from the input.

                  * @param                nCtx                Read context

                 * @param                pDst                Destination buffer.

                 * @param                iComponent        Output Component

                 * @return      bool                true on succes, else false.

                 */

        virtual bool ReadLine(ContextID nCtx, CNCSJPCBuffer *pDst, UINT16 iComponent);

                /**

                 * Write a BufferType line to the output.

                  * @param                nCtx                Context

                 * @param                pSrc                Source buffer.

                 * @param                iComponent        Output Component

                 * @return      bool                true on succes, else false.

                 */

        virtual bool WriteLine(ContextID nCtx, CNCSJPCBuffer *pSrc, UINT16 iComponent);

        virtual INT32 ReadNewSegs(CNCSJPCIOStream &Stream);

        virtual INT32 WriteNewSegs(CNCSJPCIOStream &Stream);

                /** Decoded codeblock */

        CNCSJPCBuffer        m_DecBuf;

        static CNCSJPCT1Coder        sm_Coder;

protected:

        static CNCSJPCNodeTracker        sm_Tracker;

                /**

                 * Decode the codeblock.

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

                 */

        CNCSError Decode(Type eType);

private:

        friend class CNCSJP2FileView;

        static NCSTimeStampUs sm_usTotal;

        static NCSTimeStampUs sm_usLast;

        static UINT64 sm_nTotalSamples;

        static UINT64 sm_nLastSamples;

};

#endif // !NCSJPCCODEBLOCK_H