xtiffiop.h Source File

00001 /*
00002  * Private Extended TIFF library interface.
00003  *
00004  *  uses private LIBTIFF interface.
00005  *
00006  *  written by: Niles D. Ritter
00007  *
00008  *  Revisions:
00009  *    18 Sep 1995   -- Deprecated Integraph Matrix tag with new one.
00010  *                     Backward compatible support provided.  --NDR.
00011  *
00012  */
00013 
00014 #ifndef __xtiffiop_h
00015 #define __xtiffiop_h
00016 
00017 #include "tiffiop.h"
00018 #include "xtiffio.h"
00019 
00020 /**********************************************************************
00021  *               User Configuration
00022  **********************************************************************/
00023 
00024 /* Define number of extended tags here */
00025 #define NUM_XFIELD 8
00026 #define XFIELD_BASE (FIELD_LAST-NUM_XFIELD)
00027 
00028 /*  Define Fields here  */
00029 #define FIELD_GEOPIXELSCALE     (XFIELD_BASE+0)
00030 #define FIELD_INTERGRAPH_MATRIX (XFIELD_BASE+1)
00031 #define FIELD_GEOTRANSMATRIX    (XFIELD_BASE+2)
00032 #define FIELD_GEOTIEPOINTS      (XFIELD_BASE+3)
00033 #define FIELD_GEOASCIIPARAMS    (XFIELD_BASE+4)
00034 #define FIELD_GEOKEYDIRECTORY   (XFIELD_BASE+5)
00035 #define FIELD_GEODOUBLEPARAMS   (XFIELD_BASE+6)
00036 #ifdef JPL_TAG_SUPPORT
00037 #define FIELD_JPL_CARTO_IFD     (XFIELD_BASE+7)   /* unsupported */
00038 #endif
00039 
00040 /* Used for GEO tags having variable counts */
00041 typedef enum {
00042         GEO_NUM_DIR=0,
00043         GEO_NUM_DOUBLE,
00044         GEO_NUM_TIEPOINT,
00045         GEO_NUM_PIXELSCALE,
00046         GEO_NUM_MATRIX,
00047         GEO_NUM_IG_MATRIX,
00048         GEO_NUM_TAGS
00049 } geo_count_t;
00050 
00051 /* Define Private directory structure here */
00052 struct XTIFFDirectory {
00053         uint16   xd_geodimensions[GEO_NUM_TAGS]; /* dir-count for the geo tags */
00054         uint16*  xd_geokeydirectory;
00055         double*  xd_geodoubleparams;
00056         char*    xd_geoasciiparams;
00057         double*  xd_geotiepoints;
00058         double*  xd_geopixelscale;
00059         double*  xd_geomatrix;
00060         double*  xd_intergraph_matrix;
00061 #ifdef JPL_TAG_SUPPORT
00062         uint32   xd_jpl_ifd_offset; /* dont use */
00063 #endif
00064 };
00065 typedef struct XTIFFDirectory XTIFFDirectory;
00066 
00067 /**********************************************************************
00068  *    Nothing below this line should need to be changed by the user.
00069  **********************************************************************/
00070 
00071 struct xtiff {
00072         TIFF            *xtif_tif;      /* parent TIFF pointer */
00073         uint32          xtif_flags;
00074 #define       XTIFFP_PRINT   0x00000001
00075         XTIFFDirectory  xtif_dir;       /* internal rep of current directory */
00076         TIFFVSetMethod  xtif_vsetfield; /* inherited tag set routine */
00077         TIFFVGetMethod  xtif_vgetfield; /* inherited tag get routine */
00078         TIFFPrintMethod xtif_printdir;  /* inherited dir print method */
00079 };
00080 typedef struct xtiff xtiff;
00081 
00082 
00083 #define PARENT(xt,pmember) ((xt)->xtif_ ## pmember) 
00084 #define TIFFMEMBER(tf,pmember) ((tf)->tif_ ## pmember) 
00085 #define XTIFFDIR(tif) ((xtiff *)TIFFMEMBER(tif,clientdir))
00086         
00087 /* Extended TIFF flags */
00088 #define XTIFF_INITIALIZED 0x80000000
00089         
00090 #endif /* __xtiffiop_h */