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/* main.h: global variable declarations.
Copyright (C) 1992 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 2, 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef MAIN_H
#define MAIN_H
#include "types.h"
#include "image-header.h"
/* See main.c for explanations of these globals. */
extern boolean trace_scanlines;
extern image_header_type image_header;
extern string input_name;
extern string output_name;
/* Generic routines to manipulate the image. */
extern void (*image_open_input_file) (string filename);
extern void (*image_close_input_file) (void);
extern void (*image_get_header) (void);
extern boolean (*image_get_scanline) (one_byte *);
/* Print a scanline LINE of width WIDTH, if `trace_scanlines' is true.. */
extern void print_scanline (one_byte line[], unsigned width);
#endif /* not MAIN_H */
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