1 /* 2 * This file is part of the Scale2x project. 3 * 4 * Copyright (C) 2003 Andrea Mazzoleni 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 21 /* 22 * This file contains an example implementation of the Scale effect 23 * applyed to a generic bitmap. 24 * 25 * You can find an high level description of the effect at : 26 * 27 * http://scale2x.sourceforge.net/ 28 * 29 * Alternatively at the previous license terms, you are allowed to use this 30 * code in your program with these conditions: 31 * - the program is not used in commercial activities. 32 * - the whole source code of the program is released with the binary. 33 * - derivative works of the program are allowed. 34 */ 35 36 #ifndef __SCALEBIT_H 37 #define __SCALEBIT_H 38 39 int scale_precondition(unsigned scale, unsigned pixel, unsigned width, unsigned height); 40 void scale(unsigned scale, void* void_dst, unsigned dst_slice, const void* void_src, unsigned src_slice, unsigned pixel, unsigned width, unsigned height); 41 42 void Simple2x(unsigned char *srcPtr, unsigned int srcPitch, unsigned char *deltaPtr, unsigned char *dstPtr, unsigned int dstPitch, int width, int height); 43 44 #endif 45 46