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- /* pbm.h - header file for libpbm portable bitmap library
- */
-
- #ifndef _PBM_H_
- #define _PBM_H_
-
- #include "pbmplus.h"
-
- typedef unsigned char bit;
- #define PBM_WHITE 0
- #define PBM_BLACK 1
-
-
- /* Magic constants. */
-
- #define PBM_MAGIC1 'P'
- #define PBM_MAGIC2 '1'
- #define RPBM_MAGIC2 '4'
- #define PBM_FORMAT (PBM_MAGIC1 * 256 + PBM_MAGIC2)
- #define RPBM_FORMAT (PBM_MAGIC1 * 256 + RPBM_MAGIC2)
- #define PBM_TYPE PBM_FORMAT
-
-
- /* Macro for turning a format number into a type number. */
-
- #define PBM_FORMAT_TYPE(f) ((f) == PBM_FORMAT || (f) == RPBM_FORMAT ? PBM_TYPE : -1)
-
-
- /* Declarations of routines. */
-
- void pbm_init ARGS(( int* argcP, char* argv[] ));
-
- #define pbm_allocarray( cols, rows ) ((bit**) pm_allocarray( cols, rows, sizeof(bit) ))
- #define pbm_allocrow( cols ) ((bit*) pm_allocrow( cols, sizeof(bit) ))
- #define pbm_freearray( bits, rows ) pm_freearray( (char**) bits, rows )
- #define pbm_freerow( bitrow ) pm_freerow( (char*) bitrow )
-
- bit** pbm_readpbm ARGS(( FILE* file, int* colsP, int* rowsP ));
- void pbm_readpbminit ARGS(( FILE* file, int* colsP, int* rowsP, int* formatP ));
- void pbm_readpbmrow ARGS(( FILE* file, bit* bitrow, int cols, int format ));
-
- void pbm_writepbm ARGS(( FILE* file, bit** bits, int cols, int rows, int forceplain ));
- void pbm_writepbminit ARGS(( FILE* file, int cols, int rows, int forceplain ));
- void pbm_writepbmrow ARGS(( FILE* file, bit* bitrow, int cols, int forceplain ));
-
- #endif /*_PBM_H_*/
-