diff options
Diffstat (limited to 'include/pbm.h')
-rw-r--r-- | include/pbm.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/pbm.h b/include/pbm.h new file mode 100644 index 0000000..a1e16f5 --- /dev/null +++ b/include/pbm.h @@ -0,0 +1,46 @@ +/* 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_*/ |