/*
# input-pbm.h: declarations for reading an PBM file.
#
# Copyright (C) 1992, 2011 Free Software Foundation, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
*/


#ifndef INPUT_PBM_H
#define INPUT_PBM_H

#include "types.h"
#include "image-header.h"


/* Prepare to read FILENAME.  */
extern void pbm_open_input_file (string filename);

/* Close up gracefully.  */
extern void pbm_close_input_file (void);


/* Read the header.  */
extern void pbm_get_header (void);


/* Read a single scanline into P.  P must point to a large-enough block
   for one entire scanline (the width of the image is given in the
   header).  If at the end of the input file, returns false, else
   returns true.  */
extern boolean pbm_get_scanline (one_byte *p);

#endif /* not INPUT_PBM_H */