deepstone
annotate src/texture.c @ 3:0e781cc43178
adding textures
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Mon, 21 Nov 2011 10:16:09 +0200 |
| parents | |
| children | c3e0bccd673e |
| rev | line source |
|---|---|
| nuclear@3 | 1 /* |
| nuclear@3 | 2 256-color 3D graphics hack for real-mode DOS. |
| nuclear@3 | 3 Copyright (C) 2011 John Tsiombikas <nuclear@member.fsf.org> |
| nuclear@3 | 4 |
| nuclear@3 | 5 This program is free software: you can redistribute it and/or modify |
| nuclear@3 | 6 it under the terms of the GNU General Public License as published by |
| nuclear@3 | 7 the Free Software Foundation, either version 3 of the License, or |
| nuclear@3 | 8 (at your option) any later version. |
| nuclear@3 | 9 |
| nuclear@3 | 10 This program is distributed in the hope that it will be useful, |
| nuclear@3 | 11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
| nuclear@3 | 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| nuclear@3 | 13 GNU General Public License for more details. |
| nuclear@3 | 14 |
| nuclear@3 | 15 You should have received a copy of the GNU General Public License |
| nuclear@3 | 16 along with this program. If not, see <http://www.gnu.org/licenses/>. |
| nuclear@3 | 17 */ |
| nuclear@3 | 18 |
| nuclear@3 | 19 #include <stdlib.h> |
| nuclear@3 | 20 #include "texture.h" |
| nuclear@3 | 21 #include "palman.h" |
| nuclear@3 | 22 |
| nuclear@3 | 23 struct texture *tex_load(const char *fname) |
| nuclear@3 | 24 { |
| nuclear@3 | 25 return 0; /* TODO */ |
| nuclear@3 | 26 } |
| nuclear@3 | 27 |
| nuclear@3 | 28 struct texture *tex_gen_checker(int xsz, int ysz, int ush, int vsh, int c1, int c2) |
| nuclear@3 | 29 { |
| nuclear@3 | 30 int i, j; |
| nuclear@3 | 31 struct texture *tex; |
| nuclear@3 | 32 unsigned char *pptr; |
| nuclear@3 | 33 |
| nuclear@3 | 34 if(!(tex = malloc(sizeof *tex))) { |
| nuclear@3 | 35 return 0; |
| nuclear@3 | 36 } |
| nuclear@3 | 37 if(!(tex->pixels = malloc(xsz * ysz))) { |
| nuclear@3 | 38 free(tex); |
| nuclear@3 | 39 return 0; |
| nuclear@3 | 40 } |
| nuclear@3 | 41 tex->width = xsz; |
| nuclear@3 | 42 tex->height = ysz; |
| nuclear@3 | 43 |
| nuclear@3 | 44 pptr = tex->pixels; |
| nuclear@3 | 45 for(i=0; i<ysz; i++) { |
| nuclear@3 | 46 for(j=0; j<xsz; j++) { |
| nuclear@3 | 47 int c = ((i >> vsh) & 1) == ((j >> ush) & 1) ? c1 : c2; |
| nuclear@3 | 48 *pptr++ = c; |
| nuclear@3 | 49 } |
| nuclear@3 | 50 } |
| nuclear@3 | 51 return tex; |
| nuclear@3 | 52 } |