src/tiff/contrib/tags/xtiffiop.h

   1 /*
   2  * Private Extended TIFF library interface.
   3  *
   4  *  uses private LIBTIFF interface.
   5  *
   6  *  The portions of this module marked "XXX" should be
   7  *  modified to support your tags instead.
   8  *
   9  *  written by: Niles D. Ritter
  10  *
  11  */
  12
  13 #ifndef __xtiffiop_h
  14 #define __xtiffiop_h
  15
  16 #include "tiffiop.h"
  17 #include "xtiffio.h"
  18
  19 /**********************************************************************
  20  *               User Configuration
  21  **********************************************************************/
  22
  23 /* XXX - Define number of your extended tags here */
  24 #define NUM_XFIELD 3
  25 #define XFIELD_BASE (FIELD_LAST-NUM_XFIELD)
  26
  27 /*  XXX - Define your Tag Fields here  */
  28 #define FIELD_EXAMPLE_MULTI     (XFIELD_BASE+0)
  29 #define FIELD_EXAMPLE_SINGLE    (XFIELD_BASE+1)
  30 #define FIELD_EXAMPLE_ASCII      (XFIELD_BASE+2)
  31
  32
  33 /* XXX - Define Private directory tag structure here */
  34 struct XTIFFDirectory {
  35         uint16   xd_num_multi; /* dir-count for the multi tag */
  36         double*  xd_example_multi;
  37         uint32   xd_example_single;
  38         char*    xd_example_ascii;
  39 };
  40 typedef struct XTIFFDirectory XTIFFDirectory;
  41
  42 /**********************************************************************
  43  *    Nothing below this line should need to be changed by the user.
  44  **********************************************************************/
  45
  46 struct xtiff {
  47         TIFF            *xtif_tif;      /* parent TIFF pointer */
  48         uint32          xtif_flags;
  49 #define       XTIFFP_PRINT   0x00000001
  50         XTIFFDirectory  xtif_dir;       /* internal rep of current directory */
  51         TIFFVSetMethod  xtif_vsetfield; /* inherited tag set routine */
  52         TIFFVGetMethod  xtif_vgetfield; /* inherited tag get routine */
  53         TIFFPrintMethod xtif_printdir;  /* inherited dir print method */
  54 };
  55 typedef struct xtiff xtiff;
  56
  57
  58 #define PARENT(xt,pmember) ((xt)->xtif_ ## pmember)
  59 #define TIFFMEMBER(tf,pmember) ((tf)->tif_ ## pmember)
  60 #define XTIFFDIR(tif) ((xtiff *)TIFFMEMBER(tif,clientdir))
  61
  62 /* Extended TIFF flags */
  63 #define XTIFF_INITIALIZED 0x80000000
  64
  65 #endif /* __xtiffiop_h */