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gdaljp2metadata.h

00001 /******************************************************************************
00002  * $Id: gdaljp2metadata.h 10646 2007-01-18 02:38:10Z warmerdam $
00003  *
00004  * Project:  GDAL 
00005  * Purpose:  JP2 Box Reader (and GMLJP2 Interpreter)
00006  * Author:   Frank Warmerdam, warmerdam@pobox.com
00007  *
00008  ******************************************************************************
00009  * Copyright (c) 2005, Frank Warmerdam <warmerdam@pobox.com>
00010  *
00011  * Permission is hereby granted, free of charge, to any person obtaining a
00012  * copy of this software and associated documentation files (the "Software"),
00013  * to deal in the Software without restriction, including without limitation
00014  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
00015  * and/or sell copies of the Software, and to permit persons to whom the
00016  * Software is furnished to do so, subject to the following conditions:
00017  *
00018  * The above copyright notice and this permission notice shall be included
00019  * in all copies or substantial portions of the Software.
00020  *
00021  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00022  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00023  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
00024  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00025  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
00026  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
00027  * DEALINGS IN THE SOFTWARE.
00028  ****************************************************************************/
00029 
00030 #ifndef _JP2READER_H_INCLUDED 
00031 #define _JP2READER_H_INCLUDED 
00032 
00033 #include "cpl_conv.h"
00034 #include "cpl_vsi.h"
00035 #include "gdal.h"
00036 
00037 /************************************************************************/
00038 /*                              GDALJP2Box                              */
00039 /************************************************************************/
00040 
00041 class CPL_DLL GDALJP2Box
00042 {
00043 
00044     FILE        *fpVSIL;
00045 
00046     char        szBoxType[5];
00047 
00048     GIntBig     nBoxOffset;
00049     GIntBig     nBoxLength;
00050 
00051     GIntBig     nDataOffset;
00052 
00053     GByte       abyUUID[16];
00054 
00055     GByte      *pabyData;
00056 
00057 public:
00058                 GDALJP2Box( FILE * = NULL );
00059                 ~GDALJP2Box();
00060 
00061     int         SetOffset( GIntBig nNewOffset );
00062     int         ReadBox();
00063 
00064     int         ReadFirst();
00065     int         ReadNext();
00066 
00067     int         ReadFirstChild( GDALJP2Box *poSuperBox );
00068     int         ReadNextChild( GDALJP2Box *poSuperBox );
00069 
00070     GIntBig     GetDataLength();
00071     const char *GetType() { return szBoxType; }
00072     
00073     GByte      *ReadBoxData();
00074 
00075     int         IsSuperBox();
00076 
00077     int         DumpReadable( FILE * );
00078 
00079     FILE        *GetFILE() { return fpVSIL; }
00080 
00081     const GByte *GetUUID() { return abyUUID; }
00082 
00083     // write support
00084     void        SetType( const char * );
00085     void        SetWritableData( int nLength, const GByte *pabyData );
00086     const GByte*GetWritableData() { return pabyData; }
00087 
00088     // factory methods.
00089     static GDALJP2Box *CreateAsocBox( int nCount, GDALJP2Box **papoBoxes );
00090     static GDALJP2Box *CreateLblBox( const char *pszLabel );
00091     static GDALJP2Box *CreateLabelledXMLAssoc( const char *pszLabel,
00092                                                const char *pszXML );
00093     static GDALJP2Box *CreateUUIDBox( const GByte *pabyUUID, 
00094                                       int nDataSize, GByte *pabyData );
00095 };
00096 
00097 /************************************************************************/
00098 /*                           GDALJP2Metadata                            */
00099 /************************************************************************/
00100 
00101 class CPL_DLL GDALJP2Metadata
00102 
00103 {
00104 private:
00105     void    CollectGMLData( GDALJP2Box * );
00106     int     GMLSRSLookup( const char *pszURN );
00107 
00108     int    nGeoTIFFSize;
00109     GByte  *pabyGeoTIFFData;
00110 
00111     int    nMSIGSize;
00112     GByte  *pabyMSIGData;
00113 
00114 public:
00115     char   **papszGMLMetadata;
00116     
00117     int     bHaveGeoTransform;
00118     double  adfGeoTransform[6];
00119 
00120     char    *pszProjection;
00121 
00122     int         nGCPCount;
00123     GDAL_GCP    *pasGCPList;
00124 
00125 public:
00126             GDALJP2Metadata();
00127             ~GDALJP2Metadata();
00128 
00129     int     ReadBoxes( FILE * fpVSIL );
00130 
00131     int     ParseJP2GeoTIFF();
00132     int     ParseMSIG();
00133     int     ParseGMLCoverageDesc();
00134 
00135     int     ReadAndParse( const char *pszFilename );
00136 
00137     // Write oriented. 
00138     void    SetProjection( const char *pszWKT );
00139     void    SetGeoTransform( double * );
00140     void    SetGCPs( int, const GDAL_GCP * );
00141     
00142     GDALJP2Box *CreateJP2GeoTIFF();
00143     GDALJP2Box *CreateGMLJP2( int nXSize, int nYSize );
00144 };
00145 
00146 
00147 
00148 #endif /* ndef _JP2READER_H_INCLUDED */
00149 
00150 

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