Create Subversion repository

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 97 insertions, 0 deletions

diff --git a/lib/pbm.h b/lib/pbm.h
new file mode 100644
index 00000000..1591c77f
--- /dev/null
+++ b/lib/pbm.h
@@ -0,0 +1,97 @@
+#ifndef PBM_H_INCLUDED
+#define PBM_H_INCLUDED
+
+#include "pm.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if 0
+} /* to fake out automatic code indenters */
+#endif
+
+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[] ));
+void
+pbm_nextimage(FILE *file, int * const eofP);
+
+#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)
+#define pbm_packed_bytes(cols) (((cols)+7)/8)
+#define pbm_allocrow_packed(cols) \
+    ((unsigned char *) pm_allocrow(pbm_packed_bytes(cols), \
+                                   sizeof(unsigned char)))
+#define pbm_freerow_packed(packed_bits) \
+    pm_freerow((char *) packed_bits)
+#define pbm_allocarray_packed(cols, rows) ((unsigned char **) \
+    pm_allocarray(pbm_packed_bytes(cols), rows, sizeof(unsigned char)))
+#define pbm_freearray_packed(packed_bits, rows) \
+    pm_freearray((char **) packed_bits, rows)
+
+bit** pbm_readpbm(FILE* file, int* colsP, int* rowsP);
+void pbm_readpbminit(FILE* file, int* colsP, int* rowsP, int* formatP);
+void pbm_readpbmrow(FILE* file, bit* bitrow, int cols, int format);
+void pbm_readpbmrow_packed(
+    FILE* const file, unsigned char * const packed_bits, 
+    const int cols, const int format);
+
+void
+pbm_writepbminit(FILE * const fileP, 
+                 int    const cols, 
+                 int    const rows, 
+                 int    const forceplain);
+
+void
+pbm_writepbm(FILE * const fileP, 
+             bit ** const bits, 
+             int    const cols, 
+             int    const rows, 
+             int    const forceplain);
+
+void
+pbm_writepbmrow(FILE * const fileP, 
+                bit *  const bitrow, 
+                int    const cols, 
+                int    const forceplain);
+
+void
+pbm_writepbmrow_packed(FILE *                const fileP, 
+                       const unsigned char * const packed_bits,
+                       int                   const cols, 
+                       int                   const forceplain);
+
+void
+pbm_check(FILE * file, const enum pm_check_type check_type, 
+          const int format, const int cols, const int rows,
+          enum pm_check_code * const retval_p);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif