3 Copyright (c) 2003/2004/2005 Matthias Kramm <kramm@quiss.org>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
26 int png_apply_filter_32(unsigned char*dest, unsigned char*src, int width, int y);
27 void png_inverse_filter_32(int mode, unsigned char*src, unsigned char*old, unsigned char*dest, int width);
29 int getPNG(const char*sname, int*destwidth, int*destheight, unsigned char**destdata);
30 int getPNGdimensions(const char*sname, int*destwidth, int*destheight);
32 void savePNG(const char*filename, unsigned char*data, int width, int height, int numcolors);
34 void writePNG(const char*filename, unsigned char*data, int width, int height);
35 void writePalettePNG(const char*filename, unsigned char*data, int width, int height);