1 /** 2 * 3 * Image handling tools, (c) AJK 2001-2005 4 * 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. 9 * 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. 14 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 * 19 */ 20 21 #ifndef __IMAGE_H 22 #define __IMAGE_H 23 24 typedef unsigned int Colour; // RGB value 25 26 // Image object 27 typedef struct { 28 int W, // width 29 L, // Line length in Image (W+1) 30 H; // height 31 unsigned char *Image; // image array, one byte per pixel 32 int C; // colours (can be non power of 2, max 256) 33 Colour *Colour; // colour map (must have entry for each colour) 34 } Image; 35 36 // macros and functions 37 38 #define ImagePixel(i,x,y) ((i)->Image[1+(i)->L*(y)+(x)]) 39 40 Image *ImageNew(int w, int h, int c); // create a new blank image 41 void ImageFree(Image * i); // free an image 42 void ImageWritePNG(Image * i, int fh, int back, int trans, const char *comment); 43 44 #endif /* __IMAGE_H */ 45