pgm.h

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/*
Copyright (C) 2007-12 Andrea Vedaldi and Brian Fulkerson.
All rights reserved.

This file is part of the VLFeat library and is made available under
the terms of the BSD license (see the COPYING file).
*/

#ifndef VL_PGM_H
#define VL_PGM_H

#include "generic.h"
#include "mathop.h"
#include <stdio.h>

#define VL_ERR_PGM_INV_HEAD  101 
#define VL_ERR_PGM_INV_META  102 
#define VL_ERR_PGM_INV_DATA  103 
#define VL_ERR_PGM_IO        104 
typedef struct _VlPgmImage
{
  vl_size width ;      
  vl_size height ;     
  vl_size max_value ;  
  vl_bool is_raw ;     
} VlPgmImage ;

VL_EXPORT int vl_pgm_extract_head (FILE *f, VlPgmImage *im) ;
VL_EXPORT int vl_pgm_extract_data (FILE *f, VlPgmImage const *im, void *data) ;
VL_EXPORT int vl_pgm_insert (FILE *f,
                             VlPgmImage const *im,
                             void const*data ) ;
VL_EXPORT vl_size vl_pgm_get_npixels (VlPgmImage const *im) ;
VL_EXPORT vl_size vl_pgm_get_bpp (VlPgmImage const *im) ;
VL_EXPORT int vl_pgm_write (char const *name,
                            vl_uint8 const *data,
                            int width, int height) ;
VL_EXPORT int vl_pgm_write_f (char const *name,
                              float const *data,
                              int width, int height) ;
VL_EXPORT int vl_pgm_read_new (char const *name,
                               VlPgmImage *im,
                               vl_uint8 **data) ;
VL_EXPORT int vl_pgm_read_new_f (char const *name,
                                 VlPgmImage *im,
                                 float **data) ;

/* VL_PGM_H */
#endif