| 1 | /* |
1 | /* |
| 2 | generate_image.c - Part of psiconv, a PSION 5 file formats converter |
2 | generate_image.c - Part of psiconv, a PSION 5 file formats converter |
| 3 | Copyright (c) 1999-2004 Frodo Looijaard <frodol@dds.nl> |
3 | Copyright (c) 1999-2014 Frodo Looijaard <frodo@frodo.looijaard.name> |
| 4 | |
4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
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 |
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 |
7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
8 | (at your option) any later version. |
| … | |
… | |
| 264 | << (greenbits+bluebits)) + |
264 | << (greenbits+bluebits)) + |
| 265 | (((psiconv_u32) (p_green * (1 << greenbits) + 0.5)) |
265 | (((psiconv_u32) (p_green * (1 << greenbits) + 0.5)) |
| 266 | << bluebits) + |
266 | << bluebits) + |
| 267 | ((psiconv_u32) (p_blue * (1 << bluebits) + 0.5)); |
267 | ((psiconv_u32) (p_blue * (1 << bluebits) + 0.5)); |
| 268 | else |
268 | else |
| 269 | pixel = (p_red + p_green + p_blue)/3.0 * (1 << colordepth); |
269 | pixel = (0.212671 * p_red + 0.715160 * p_green + 0.072169 * p_blue) * ((1 << colordepth) * 0.999); |
| 270 | } else { |
270 | } else { |
| 271 | dist = 4; /* Max distance is 3, so this is safe */ |
271 | dist = 4; /* Max distance is 3, so this is safe */ |
| 272 | pixel = -1; |
272 | pixel = -1; |
| 273 | for (i = 0; i < palet.length; i++) { |
273 | for (i = 0; i < palet.length; i++) { |
| 274 | new_dist = (p_red - palet.red[i]) * (p_red - palet.red[i]) + |
274 | new_dist = (p_red - palet.red[i]) * (p_red - palet.red[i]) + |
| … | |
… | |
| 332 | outputbyte = 0; |
332 | outputbyte = 0; |
| 333 | for (y = 0; y < ysize; y++) { |
333 | for (y = 0; y < ysize; y++) { |
| 334 | outputbytenr = 0; |
334 | outputbytenr = 0; |
| 335 | for (x = 0; x < xsize; x++) { |
335 | for (x = 0; x < xsize; x++) { |
| 336 | if (!(pixelptr = psiconv_list_get(pixels,y*xsize+x))) { |
336 | if (!(pixelptr = psiconv_list_get(pixels,y*xsize+x))) { |
| 337 | psiconv_error(config,lev,0,"Massive internal corruption"); |
337 | psiconv_error(config,lev,0,"Data structure corruption"); |
| 338 | res = -PSICONV_E_NOMEM; |
338 | res = -PSICONV_E_NOMEM; |
| 339 | goto ERROR2; |
339 | goto ERROR2; |
| 340 | } |
340 | } |
| 341 | inputbitsleft = colordepth; |
341 | inputbitsleft = colordepth; |
| 342 | inputdata = *pixelptr; |
342 | inputdata = *pixelptr; |
| … | |
… | |
| 958 | psiconv_error(config,lev,0,"Writing of jumptable section failed"); |
958 | psiconv_error(config,lev,0,"Writing of jumptable section failed"); |
| 959 | else |
959 | else |
| 960 | psiconv_progress(config,lev,0,"End of jumptable section"); |
960 | psiconv_progress(config,lev,0,"End of jumptable section"); |
| 961 | return res; |
961 | return res; |
| 962 | } |
962 | } |
| 963 | |
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