Application: gvSIG desktop

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

 * $Id: gdal.h 716 2004-12-28 14:07:11Z igbrotru $

 *

 * Name:     gdal.h

 * Project:  GDAL Core

 * Purpose:  GDAL Core C/Public declarations.

 * Author:   Frank Warmerdam, warmerdam@pobox.com

 *

 ******************************************************************************

 * Copyright (c) 1998, 2002 Frank Warmerdam

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 ******************************************************************************

 *

 * $Log$

 * Revision 1.1  2004-12-28 14:06:59  igbrotru

 * *** empty log message ***

 *

 * Revision 1.1  2004/10/28 12:08:47  igbrotru

 * *** empty log message ***

 *

 * Revision 1.1  2004/10/05 11:56:56  igbrotru

 * *** empty log message ***

 *

 * Revision 1.82  2004/06/24 03:10:49  warmerda

 * update to GDAL 1.2.1

 *

 * Revision 1.81  2004/04/29 13:42:58  warmerda

 * added C Offset/Scale entry points

 *

 * Revision 1.80  2004/04/04 20:05:37  warmerda

 * mark as 1.2.0.1

 *

 * Revision 1.79  2004/04/02 17:32:40  warmerda

 * added GDALGeneralCmdLineProcessor()

 *

 * Revision 1.78  2004/03/28 16:01:46  warmerda

 * added GDALApplyGeoTransform()

 *

 * Revision 1.77  2004/03/10 19:18:29  warmerda

 * updated date

 *

 * Revision 1.76  2004/03/01 18:30:44  warmerda

 * Updated release date.

 *

 * Revision 1.75  2004/02/25 09:03:15  dron

 * Added GDALPackedDMSToDec() and GDALDecToPackedDMS() functions.

 *

 * Revision 1.74  2004/02/19 15:55:52  warmerda

 * updated to 1.2.0

 *

 * Revision 1.73  2004/02/04 21:30:12  warmerda

 * ensure GDALGetDataTypeByName is exported

 *

 * Revision 1.72  2004/01/18 16:43:37  dron

 * Added GDALGetDataTypeByName() function.

 *

 * Revision 1.71  2003/07/18 04:46:48  sperkins

 * added CPL_DLL to GDALFillRaster

 *

 * Revision 1.70  2003/06/27 20:03:11  warmerda

 * updated version to 1.1.9

 *

 * Revision 1.69  2003/06/03 19:44:00  warmerda

 * added GDALRPCInfo support

 *

 * Revision 1.68  2003/05/06 05:20:38  sperkins

 * cleaned up comments

 *

 * Revision 1.67  2003/05/06 05:13:36  sperkins

 * added Fill() and GDALFillRaster()

 *

 * Revision 1.66  2003/05/02 19:47:57  warmerda

 * added C GetBandNumber and GetBandDataset entry points

 *

 * Revision 1.65  2003/04/30 17:13:48  warmerda

 * added docs for many C functions

 *

 * Revision 1.64  2003/04/30 15:48:31  warmerda

 * Fixed email address, trimmed log messages.

 *

 * Revision 1.63  2003/04/25 19:46:13  warmerda

 * added GDALDatasetRasterIO

 *

 * Revision 1.62  2003/03/18 06:01:03  warmerda

 * Added GDALFlushCache()

 *

 * Revision 1.61  2003/02/20 18:34:12  warmerda

 * added GDALGetRasterAccess()

 *

 * Revision 1.60  2003/01/27 21:55:52  warmerda

 * various documentation improvements

 *

 * Revision 1.59  2002/12/21 17:28:35  warmerda

 * actually, lets use 1.1.8.0

 *

 * Revision 1.58  2002/12/21 17:26:43  warmerda

 * updated version to 1.1.7.5

 *

 * Revision 1.57  2002/12/05 15:46:38  warmerda

 * added GDALReadTabFile()

 *

 * Revision 1.56  2002/11/23 18:07:41  warmerda

 * added DMD_CREATIONDATATYPES

 *

 * Revision 1.55  2002/10/24 14:18:29  warmerda

 * intermediate version update

 *

 * Revision 1.54  2002/09/11 14:17:38  warmerda

 * added C GDALSetDescription()

 *

 * Revision 1.53  2002/09/06 01:29:55  warmerda

 * added C entry points for GetAccess() and GetOpenDatasets()

 *

 * Revision 1.52  2002/09/04 06:52:35  warmerda

 * added GDALDestroyDriverManager

 *

 * Revision 1.51  2002/07/09 20:33:12  warmerda

 * expand tabs

 *

 * Revision 1.50  2002/06/12 21:13:27  warmerda

 * use metadata based driver info

 *

 * Revision 1.49  2002/05/28 18:55:46  warmerda

 * added GDALOpenShared() and GDALDumpOpenDatasets

 *

 * Revision 1.48  2002/05/14 21:38:32  warmerda

 * make INST_DATA overidable with binary patch

 *

 * Revision 1.47  2002/05/06 21:37:29  warmerda

 * added GDALGCPsToGeoTransform

 *

 * Revision 1.46  2002/04/24 16:25:04  warmerda

 * Ensure that GDAL{Read,Write}WorldFile() are exported on Windows.

 *

 * Revision 1.45  2002/04/19 12:22:05  dron

 * added GDALWriteWorldFile()

 *

 * Revision 1.44  2002/04/16 13:59:33  warmerda

 * added GDALVersionInfo

 *

 * Revision 1.43  2002/04/16 13:26:08  warmerda

 * upgrade to version 1.1.7

 */

#ifndef GDAL_H_INCLUDED

#define GDAL_H_INCLUDED

/**

 * \file gdal.h

 *

 * Public (C callable) GDAL entry points.

 */

#include "cpl_port.h"

#include "cpl_error.h"

/* -------------------------------------------------------------------- */

/*      GDAL Version Information.                                       */

/* -------------------------------------------------------------------- */

#ifndef GDAL_VERSION_NUM

#  define GDAL_VERSION_NUM      1210

#endif

#ifndef GDAL_RELEASE_DATE

#  define GDAL_RELEASE_DATE     20040623

#endif

#ifndef GDAL_RELEASE_NAME

#  define GDAL_RELEASE_NAME     "1.2.1.0"

#endif

/* -------------------------------------------------------------------- */

/*      Significant constants.                                          */

/* -------------------------------------------------------------------- */

CPL_C_START

/*! Pixel data types */

typedef enum {

    GDT_Unknown = 0,

    /*! Eight bit unsigned integer */           GDT_Byte = 1,

    /*! Sixteen bit unsigned integer */         GDT_UInt16 = 2,

    /*! Sixteen bit signed integer */           GDT_Int16 = 3,

    /*! Thirty two bit unsigned integer */      GDT_UInt32 = 4,

    /*! Thirty two bit signed integer */        GDT_Int32 = 5,

    /*! Thirty two bit floating point */        GDT_Float32 = 6,

    /*! Sixty four bit floating point */        GDT_Float64 = 7,

    /*! Complex Int16 */                        GDT_CInt16 = 8,

    /*! Complex Int32 */                        GDT_CInt32 = 9,

    /*! Complex Float32 */                      GDT_CFloat32 = 10,

    /*! Complex Float64 */                      GDT_CFloat64 = 11,

    GDT_TypeCount = 12          /* maximum type # + 1 */

} GDALDataType;

int CPL_DLL GDALGetDataTypeSize( GDALDataType );

int CPL_DLL GDALDataTypeIsComplex( GDALDataType );

const char CPL_DLL *GDALGetDataTypeName( GDALDataType );

GDALDataType CPL_DLL GDALGetDataTypeByName( const char * );

GDALDataType CPL_DLL GDALDataTypeUnion( GDALDataType, GDALDataType );

/*! Flag indicating read/write, or read-only access to data. */

typedef enum {

    /*! Read only (no update) access */ GA_ReadOnly = 0,

    /*! Read/write access. */           GA_Update = 1

} GDALAccess;

/*! Read/Write flag for RasterIO() method */

typedef enum {

    /*! Read data */   GF_Read = 0,

    /*! Write data */  GF_Write = 1

} GDALRWFlag;

/*! Types of color interpretation for raster bands. */

typedef enum

{

    GCI_Undefined=0,

    /*! Greyscale */                                      GCI_GrayIndex=1,

    /*! Paletted (see associated color table) */          GCI_PaletteIndex=2,

    /*! Red band of RGBA image */                         GCI_RedBand=3,

    /*! Green band of RGBA image */                       GCI_GreenBand=4,

    /*! Blue band of RGBA image */                        GCI_BlueBand=5,

    /*! Alpha (0=transparent, 255=opaque) */              GCI_AlphaBand=6,

    /*! Hue band of HLS image */                          GCI_HueBand=7,

    /*! Saturation band of HLS image */                   GCI_SaturationBand=8,

    /*! Lightness band of HLS image */                    GCI_LightnessBand=9,

    /*! Cyan band of CMYK image */                        GCI_CyanBand=10,

    /*! Magenta band of CMYK image */                     GCI_MagentaBand=11,

    /*! Yellow band of CMYK image */                      GCI_YellowBand=12,

    /*! Black band of CMLY image */                       GCI_BlackBand=13

} GDALColorInterp;

/*! Translate a GDALColorInterp into a user displayable string. */

const char CPL_DLL *GDALGetColorInterpretationName( GDALColorInterp );

/*! Types of color interpretations for a GDALColorTable. */

typedef enum 

{

  /*! Grayscale (in GDALColorEntry.c1) */                      GPI_Gray=0,

  /*! Red, Green, Blue and Alpha in (in c1, c2, c3 and c4) */  GPI_RGB=1,

  /*! Cyan, Magenta, Yellow and Black (in c1, c2, c3 and c4)*/ GPI_CMYK=2,

  /*! Hue, Lightness and Saturation (in c1, c2, and c3) */     GPI_HLS=3

} GDALPaletteInterp;

/*! Translate a GDALPaletteInterp into a user displayable string. */

const char CPL_DLL *GDALGetPaletteInterpretationName( GDALPaletteInterp );

/* -------------------------------------------------------------------- */

/*      GDAL Specific error codes.                                      */

/*                                                                      */

/*      error codes 100 to 299 reserved for GDAL.                       */

/* -------------------------------------------------------------------- */

#define CPLE_WrongFormat        200

/* -------------------------------------------------------------------- */

/*      Define handle types related to various internal classes.        */

/* -------------------------------------------------------------------- */

typedef void *GDALMajorObjectH;

typedef void *GDALDatasetH;

typedef void *GDALRasterBandH;

typedef void *GDALDriverH;

typedef void *GDALProjDefH;

typedef void *GDALColorTableH;

/* -------------------------------------------------------------------- */

/*      Callback "progress" function.                                   */

/* -------------------------------------------------------------------- */

typedef int (*GDALProgressFunc)(double,const char *, void *);

int CPL_DLL GDALDummyProgress( double, const char *, void *);

int CPL_DLL GDALTermProgress( double, const char *, void *);

int CPL_DLL GDALScaledProgress( double, const char *, void *);

void CPL_DLL *GDALCreateScaledProgress( double, double,

                                        GDALProgressFunc, void * );

void CPL_DLL GDALDestroyScaledProgress( void * );

/* ==================================================================== */

/*      Registration/driver related.                                    */

/* ==================================================================== */

typedef struct {

    char      *pszOptionName;

    char      *pszValueType;   /* "boolean", "int", "float", "string", 

                                  "string-select" */

    char      *pszDescription;

    char      **papszOptions;

} GDALOptionDefinition;

#define GDAL_DMD_LONGNAME "DMD_LONGNAME"

#define GDAL_DMD_HELPTOPIC "DMD_HELPTOPIC"

#define GDAL_DMD_MIMETYPE "DMD_MIMETYPE"

#define GDAL_DMD_EXTENSION "DMD_EXTENSION"

#define GDAL_DMD_CREATIONOPTIONLIST "DMD_CREATIONOPTIONLIST" 

#define GDAL_DMD_CREATIONDATATYPES "DMD_CREATIONDATATYPES" 

#define GDAL_DCAP_CREATE     "DCAP_CREATE"

#define GDAL_DCAP_CREATECOPY "DCAP_CREATECOPY"

void CPL_DLL GDALAllRegister( void );

GDALDatasetH CPL_DLL GDALCreate( GDALDriverH hDriver,

                                 const char *, int, int, int, GDALDataType,

                                 char ** );

GDALDatasetH CPL_DLL GDALCreateCopy( GDALDriverH, const char *, GDALDatasetH,

                                     int, char **, GDALProgressFunc, void * );

GDALDatasetH CPL_DLL GDALOpen( const char *pszFilename, GDALAccess eAccess );

GDALDatasetH CPL_DLL GDALOpenShared( const char *, GDALAccess );

int          CPL_DLL GDALDumpOpenDatasets( FILE * );

GDALDriverH CPL_DLL GDALGetDriverByName( const char * );

int CPL_DLL         GDALGetDriverCount();

GDALDriverH CPL_DLL GDALGetDriver( int );

int         CPL_DLL GDALRegisterDriver( GDALDriverH );

void        CPL_DLL GDALDeregisterDriver( GDALDriverH );

void        CPL_DLL GDALDestroyDriverManager( void );

CPLErr      CPL_DLL GDALDeleteDataset( GDALDriverH, const char * );

/* The following are deprecated */

const char CPL_DLL *GDALGetDriverShortName( GDALDriverH );

const char CPL_DLL *GDALGetDriverLongName( GDALDriverH );

const char CPL_DLL *GDALGetDriverHelpTopic( GDALDriverH );

/* ==================================================================== */

/*      GDAL_GCP                                                        */

/* ==================================================================== */

/** Ground Control Point */

typedef struct

{

    /** Unique identifier, often numeric */

    char        *pszId; 

    /** Informational message or "" */

    char        *pszInfo;

    /** Pixel (x) location of GCP on raster */

    double      dfGCPPixel;

    /** Line (y) location of GCP on raster */

    double      dfGCPLine;

    /** X position of GCP in georeferenced space */

    double      dfGCPX;

    /** Y position of GCP in georeferenced space */

    double      dfGCPY;

    /** Elevation of GCP, or zero if not known */

    double      dfGCPZ;

} GDAL_GCP;

void CPL_DLL GDALInitGCPs( int, GDAL_GCP * );

void CPL_DLL GDALDeinitGCPs( int, GDAL_GCP * );

GDAL_GCP CPL_DLL *GDALDuplicateGCPs( int, const GDAL_GCP * );

int CPL_DLL GDALGCPsToGeoTransform( int nGCPCount, const GDAL_GCP *pasGCPs, 

                                    double *padfGeoTransform, int bApproxOK ); 

int CPL_DLL GDALInvGeoTransform( double *padfGeoTransformIn, 

                                 double *padfInvGeoTransformOut );

void CPL_DLL GDALApplyGeoTransform( double *, double, double, 

                                    double *, double * );

/* ==================================================================== */

/*      major objects (dataset, and, driver, drivermanager).            */

/* ==================================================================== */

char CPL_DLL  **GDALGetMetadata( GDALMajorObjectH, const char * );

CPLErr CPL_DLL  GDALSetMetadata( GDALMajorObjectH, char **,

                                 const char * );

const char CPL_DLL *GDALGetMetadataItem( GDALMajorObjectH, const char *, 

                                         const char * );

CPLErr CPL_DLL  GDALSetMetadataItem( GDALMajorObjectH,

                                     const char *, const char *,

                                     const char * );

const char CPL_DLL *GDALGetDescription( GDALMajorObjectH );

void       CPL_DLL  GDALSetDescription( GDALMajorObjectH, const char * );

/* ==================================================================== */

/*      GDALDataset class ... normally this represents one file.        */

/* ==================================================================== */

GDALDriverH CPL_DLL GDALGetDatasetDriver( GDALDatasetH );

void CPL_DLL   GDALClose( GDALDatasetH );

int CPL_DLL     GDALGetRasterXSize( GDALDatasetH );

int CPL_DLL     GDALGetRasterYSize( GDALDatasetH );

int CPL_DLL     GDALGetRasterCount( GDALDatasetH );

GDALRasterBandH CPL_DLL GDALGetRasterBand( GDALDatasetH, int );

CPLErr CPL_DLL  GDALAddBand( GDALDatasetH hDS, GDALDataType eType, 

                             char **papszOptions );

CPLErr CPL_DLL GDALDatasetRasterIO( 

    GDALDatasetH hDS, GDALRWFlag eRWFlag,

    int nDSXOff, int nDSYOff, int nDSXSize, int nDSYSize,

    void * pBuffer, int nBXSize, int nBYSize, GDALDataType eBDataType,

    int nBandCount, int *panBandCount, 

    int nPixelSpace, int nLineSpace, int nBandSpace);

const char CPL_DLL *GDALGetProjectionRef( GDALDatasetH );

CPLErr CPL_DLL  GDALSetProjection( GDALDatasetH, const char * );

CPLErr CPL_DLL  GDALGetGeoTransform( GDALDatasetH, double * );

CPLErr CPL_DLL  GDALSetGeoTransform( GDALDatasetH, double * );

int CPL_DLL     GDALGetGCPCount( GDALDatasetH );

const char CPL_DLL *GDALGetGCPProjection( GDALDatasetH );

const GDAL_GCP CPL_DLL *GDALGetGCPs( GDALDatasetH );

CPLErr CPL_DLL  GDALSetGCPs( GDALDatasetH, int, const GDAL_GCP *,

                             const char * );

void CPL_DLL   *GDALGetInternalHandle( GDALDatasetH, const char * );

int CPL_DLL     GDALReferenceDataset( GDALDatasetH );

int CPL_DLL     GDALDereferenceDataset( GDALDatasetH );

CPLErr CPL_DLL  GDALBuildOverviews( GDALDatasetH, const char *, int, int *,

                                    int, int *, GDALProgressFunc, void * );

void CPL_DLL    GDALGetOpenDatasets( GDALDatasetH ***hDS, int *pnCount );

int CPL_DLL     GDALGetAccess( GDALDatasetH hDS );

void CPL_DLL    GDALFlushCache( GDALDatasetH hDS );

/* ==================================================================== */

/*      GDALRasterBand ... one band/channel in a dataset.               */

/* ==================================================================== */

GDALDataType CPL_DLL GDALGetRasterDataType( GDALRasterBandH );

void CPL_DLL    GDALGetBlockSize( GDALRasterBandH,

                                  int * pnXSize, int * pnYSize );

CPLErr CPL_DLL GDALRasterIO( GDALRasterBandH hRBand, GDALRWFlag eRWFlag,

                              int nDSXOff, int nDSYOff,

                              int nDSXSize, int nDSYSize,

                              void * pBuffer, int nBXSize, int nBYSize,

                              GDALDataType eBDataType,

                              int nPixelSpace, int nLineSpace );

CPLErr CPL_DLL GDALReadBlock( GDALRasterBandH, int, int, void * );

CPLErr CPL_DLL GDALWriteBlock( GDALRasterBandH, int, int, void * );

int CPL_DLL GDALGetRasterBandXSize( GDALRasterBandH );

int CPL_DLL GDALGetRasterBandYSize( GDALRasterBandH );

char CPL_DLL  **GDALGetRasterMetadata( GDALRasterBandH );

GDALAccess CPL_DLL GDALGetRasterAccess( GDALRasterBandH );

int CPL_DLL GDALGetBandNumber( GDALRasterBandH );

GDALDatasetH CPL_DLL GDALGetBandDataset( GDALRasterBandH );

GDALColorInterp CPL_DLL GDALGetRasterColorInterpretation( GDALRasterBandH );

CPLErr CPL_DLL GDALSetRasterColorInterpretation( GDALRasterBandH,

                                                 GDALColorInterp );

GDALColorTableH CPL_DLL GDALGetRasterColorTable( GDALRasterBandH );

CPLErr CPL_DLL GDALSetRasterColorTable( GDALRasterBandH, GDALColorTableH );

int CPL_DLL     GDALHasArbitraryOverviews( GDALRasterBandH );

int CPL_DLL             GDALGetOverviewCount( GDALRasterBandH );

GDALRasterBandH CPL_DLL GDALGetOverview( GDALRasterBandH, int );

double CPL_DLL GDALGetRasterNoDataValue( GDALRasterBandH, int * );

CPLErr CPL_DLL GDALSetRasterNoDataValue( GDALRasterBandH, double );

char CPL_DLL ** GDALGetRasterCategoryNames( GDALRasterBandH );

CPLErr CPL_DLL GDALSetRasterCategoryNames( GDALRasterBandH, char ** );

double CPL_DLL GDALGetRasterMinimum( GDALRasterBandH, int *pbSuccess );

double CPL_DLL GDALGetRasterMaximum( GDALRasterBandH, int *pbSuccess );

const char CPL_DLL *GDALGetRasterUnitType( GDALRasterBandH );

double CPL_DLL GDALGetRasterOffset( GDALRasterBandH, int *pbSuccess );

double CPL_DLL GDALGetRasterScale( GDALRasterBandH, int *pbSuccess );

void CPL_DLL GDALComputeRasterMinMax( GDALRasterBandH hBand, int bApproxOK,

                                      double adfMinMax[2] );

CPLErr CPL_DLL GDALFlushRasterCache( GDALRasterBandH hBand );

CPLErr CPL_DLL GDALGetRasterHistogram( GDALRasterBandH hBand,

                                       double dfMin, double dfMax,

                                       int nBuckets, int *panHistogram,

                                       int bIncludeOutOfRange, int bApproxOK,

                                       GDALProgressFunc pfnProgress,

                                       void * pProgressData );

int CPL_DLL GDALGetRandomRasterSample( GDALRasterBandH, int, float * );

GDALRasterBandH CPL_DLL GDALGetRasterSampleOverview( GDALRasterBandH, int );

CPLErr CPL_DLL GDALFillRaster( GDALRasterBandH hBand, double dfRealValue,

                       double dfImaginaryValue );

CPLErr GDALComputeBandStats( GDALRasterBandH hBand, int nSampleStep, 

                             double *pdfMean, double *pdfStdDev, 

                             GDALProgressFunc pfnProgress,

                             void *pProgressData );

CPLErr GDALOverviewMagnitudeCorrection( GDALRasterBandH hBaseBand, 

                                        int nOverviewCount, 

                                        GDALRasterBandH *pahOverviews, 

                                        GDALProgressFunc pfnProgress, 

                                        void *pProgressData );

/* -------------------------------------------------------------------- */

/*      Helper functions.                                               */

/* -------------------------------------------------------------------- */

int CPL_DLL GDALGeneralCmdLineProcessor( int nArgc, char ***ppapszArgv, 

                                         int nOptions );

void CPL_DLL GDALSwapWords( void *pData, int nWordSize, int nWordCount,

                            int nWordSkip );

void CPL_DLL

    GDALCopyWords( void * pSrcData, GDALDataType eSrcType, int nSrcPixelOffset,

                   void * pDstData, GDALDataType eDstType, int nDstPixelOffset,

                   int nWordCount );

int CPL_DLL GDALReadWorldFile( const char *pszBaseFilename, 

                       const char *pszExtension, 

                       double * padfGeoTransform );

int CPL_DLL GDALWriteWorldFile( const char *pszBaseFilename, 

                       const char *pszExtension, 

                       double * padfGeoTransform );

int CPL_DLL GDALReadTabFile( const char *pszBaseFilename, 

                             double *padfGeoTransform, char **ppszWKT,

                             int *pnGCPCount, GDAL_GCP **ppasGCPs );

const char CPL_DLL *GDALDecToDMS( double, const char *, int );

double CPL_DLL GDALPackedDMSToDec( double );

double CPL_DLL GDALDecToPackedDMS( double );

const char CPL_DLL *GDALVersionInfo( const char * );

typedef struct { 

    double      dfLINE_OFF;

    double      dfSAMP_OFF;

    double      dfLAT_OFF;

    double      dfLONG_OFF;

    double      dfHEIGHT_OFF;

    double      dfLINE_SCALE;

    double      dfSAMP_SCALE;

    double      dfLAT_SCALE;

    double      dfLONG_SCALE;

    double      dfHEIGHT_SCALE;

    double      adfLINE_NUM_COEFF[20];

    double      adfLINE_DEN_COEFF[20];

    double      adfSAMP_NUM_COEFF[20];

    double      adfSAMP_DEN_COEFF[20];

    double        dfMIN_LONG;

    double      dfMIN_LAT;

    double      dfMAX_LONG;

    double        dfMAX_LAT;

} GDALRPCInfo;

int CPL_DLL GDALExtractRPCInfo( char **, GDALRPCInfo * );

/* ==================================================================== */

/*      Color tables.                                                   */

/* ==================================================================== */

/** Color tuple */

typedef struct

{

    /*! gray, red, cyan or hue */

    short      c1;      

    /*! green, magenta, or lightness */    

    short      c2;      

    /*! blue, yellow, or saturation */

    short      c3;      

    /*! alpha or blackband */

    short      c4;      

} GDALColorEntry;

GDALColorTableH CPL_DLL GDALCreateColorTable( GDALPaletteInterp );

void CPL_DLL            GDALDestroyColorTable( GDALColorTableH );

GDALColorTableH CPL_DLL GDALCloneColorTable( GDALColorTableH );

GDALPaletteInterp CPL_DLL GDALGetPaletteInterpretation( GDALColorTableH );

int CPL_DLL             GDALGetColorEntryCount( GDALColorTableH );

const GDALColorEntry CPL_DLL *GDALGetColorEntry( GDALColorTableH, int );

int CPL_DLL GDALGetColorEntryAsRGB( GDALColorTableH, int, GDALColorEntry *);

void CPL_DLL GDALSetColorEntry( GDALColorTableH, int, const GDALColorEntry * );

/* ==================================================================== */

/*      GDAL Cache Management                                           */

/* ==================================================================== */

void CPL_DLL GDALSetCacheMax( int nBytes );

int CPL_DLL GDALGetCacheMax();

int CPL_DLL GDALGetCacheUsed();

int CPL_DLL GDALFlushCacheBlock();

CPL_C_END

#endif /* ndef GDAL_H_INCLUDED */