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/* pngpack: lossless image compression for a series of screen shots
* Copyright (C) 2005-2010 Carsten Gnoerlich.
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA,
* or direct your browser at http://www.gnu.org.
*/
#ifndef PNGIO_H
#define PNGIO_H
#include <zlib.h>
#include <png.h>
#if PNG_LIBPNG_VER_MAJOR == 1 && PNG_LIBPNG_VER_MINOR >= 4
#include <zlib.h>
#endif
typedef struct
{ char *name;
unsigned int width, height;
unsigned int *image;
unsigned int bytesize;
unsigned int tile_background;
unsigned int png_background;
unsigned int channels;
unsigned int first_opcode, last_opcode;
unsigned char checksum[16];
/* The rest is only used for png reading/writing */
FILE *file;
png_byte **row_pointers;
png_struct *png_read, *png_write;
png_info *png_info;
} Image;
Image *LoadPNG(char*);
void SavePNG(Image*, char*);
void FreeImage(Image*);
#endif /* PNGIO_H */
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