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/NCSJPCQuantizationParameter.h $

** CREATED:  13/12/2002 3:27:34 PM

** AUTHOR:   Simon Cope

** PURPOSE:  CNCSJPCQuantizationParameter class header

** EDITS:    [xx] ddMmmyy NAME COMMENTS

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

#ifndef NCSJPCQUANTIZATIONPARAMETER_H

#define NCSJPCQUANTIZATIONPARAMETER_H

#include "NCSJPCMarker.h"

        /**

         * CNCSJPCQuantizationParameter class - the JPC Quantization Parameters.

         *

         * @author       Simon Cope

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

         */

class NCSJPC_EXPORT_ALL CNCSJPCQuantizationParameter {

public:

        typedef enum {

                NONE                                = 0x0,

                SCALAR_DERIVED                = 0x1,

                SCALAR_EXPOUNDED        = 0x2

        } Style;

        typedef struct {

                Style        m_eStyle;

                UINT8                                m_nGuardBits;

        } Values;

        typedef struct {

                UINT16                m_nMantissa;

                UINT8                m_nExponent;

        } Irreversible;

        typedef union {

                UINT8                        m_nReversible;

                Irreversible        m_Irreversible;

        } Parameters;

        Values                m_Sqc;

        std::vector<Parameters>        m_SPqc;

                /** Default constructor, initialises members */

        CNCSJPCQuantizationParameter();

                /** Virtual destructor */

        virtual ~CNCSJPCQuantizationParameter();

                /**

                 * Parse the fields from the JPC codestream.

                 * @param                JPC                        CNCSJPC to use to parse file.

                 * @param                Stream                IOStream to use to parse file.

                 * @param                nLength                # of bytes of the marker to parse

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

                 */

        virtual CNCSError Parse(class CNCSJPC &JPC, CNCSJPCIOStream &Stream, INT32 nLength);

                /**

                 * UnParse the fields 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);

};

#endif // !NCSJPCQUANTIZATIONPARAMETER_H