palette.c

   1
   2 #include "quakedef.h"
   3
   4 cvar_t r_colormap_palette = {0, "r_colormap_palette", "gfx/colormap_palette.lmp", "name of a palette lmp file to override the shirt/pants colors of player models. It consists of 16 shirt colors, 16 scoreboard shirt colors, 16 pants colors and 16 scoreboard pants colors"};
   5
   6 unsigned int palette_complete[256];
   7 unsigned int palette_font[256];
   8 unsigned int palette_alpha[256];
   9 unsigned int palette_nocolormap[256];
  10 unsigned int palette_nocolormapnofullbrights[256];
  11 unsigned int palette_nofullbrights[256];
  12 unsigned int palette_onlyfullbrights[256];
  13 unsigned int palette_pantsaswhite[256];
  14 unsigned int palette_shirtaswhite[256];
  15 unsigned int palette_transparent[256];
  16 unsigned int palette_pantscolormap[16];
  17 unsigned int palette_shirtcolormap[16];
  18 unsigned int palette_pantsscoreboard[16];
  19 unsigned int palette_shirtscoreboard[16];
  20
  21 // John Carmack said the quake palette.lmp can be considered public domain because it is not an important asset to id, so I include it here as a fallback if no external palette file is found.
  22 unsigned char host_quakepal[768] =
  23 {
  24 // marked: colormap colors: cb = (e->render.colormap & 0xF0);cb += (cb >= 128 && cb < 224) ? 4 : 12;
  25 // 0x0*
  26         0,0,0,        15,15,15,     31,31,31,     47,47,47,     63,63,63,     75,75,75,     91,91,91,     107,107,107,
  27         123,123,123,  139,139,139,  155,155,155,  171,171,171,  187,187,187,  203,203,203,  219,219,219,  235,235,235,
  28 // 0x1*                                                   0 ^
  29         15,11,7,      23,15,11,     31,23,11,     39,27,15,     47,35,19,     55,43,23,     63,47,23,     75,55,27,
  30         83,59,27,     91,67,31,     99,75,31,     107,83,31,    115,87,31,    123,95,35,    131,103,35,   143,111,35,
  31 // 0x2*                                                   1 ^
  32         11,11,15,     19,19,27,     27,27,39,     39,39,51,     47,47,63,     55,55,75,     63,63,87,     71,71,103,
  33         79,79,115,    91,91,127,    99,99,139,    107,107,151,  115,115,163,  123,123,175,  131,131,187,  139,139,203,
  34 // 0x3*                                                   2 ^
  35         0,0,0,        7,7,0,        11,11,0,      19,19,0,      27,27,0,      35,35,0,      43,43,7,      47,47,7,
  36         55,55,7,      63,63,7,      71,71,7,      75,75,11,     83,83,11,     91,91,11,     99,99,11,     107,107,15,
  37 // 0x4*                                                   3 ^
  38         7,0,0,        15,0,0,       23,0,0,       31,0,0,       39,0,0,       47,0,0,       55,0,0,       63,0,0,
  39         71,0,0,       79,0,0,       87,0,0,       95,0,0,       103,0,0,      111,0,0,      119,0,0,      127,0,0,
  40 // 0x5*                                                   4 ^
  41         19,19,0,      27,27,0,      35,35,0,      47,43,0,      55,47,0,      67,55,0,      75,59,7,      87,67,7,
  42         95,71,7,      107,75,11,    119,83,15,    131,87,19,    139,91,19,    151,95,27,    163,99,31,    175,103,35,
  43 // 0x6*                                                   5 ^
  44         35,19,7,      47,23,11,     59,31,15,     75,35,19,     87,43,23,     99,47,31,     115,55,35,    127,59,43,
  45         143,67,51,    159,79,51,    175,99,47,    191,119,47,   207,143,43,   223,171,39,   239,203,31,   255,243,27,
  46 // 0x7*                                                   6 ^
  47         11,7,0,       27,19,0,      43,35,15,     55,43,19,     71,51,27,     83,55,35,     99,63,43,     111,71,51,
  48         127,83,63,    139,95,71,    155,107,83,   167,123,95,   183,135,107,  195,147,123,  211,163,139,  227,179,151,
  49 // 0x8*                                                   7 ^        v 8
  50         171,139,163,  159,127,151,  147,115,135,  139,103,123,  127,91,111,   119,83,99,    107,75,87,    95,63,75,
  51         87,55,67,     75,47,55,     67,39,47,     55,31,35,     43,23,27,     35,19,19,     23,11,11,     15,7,7,
  52 // 0x9*                                                   9 v
  53         187,115,159,  175,107,143,  163,95,131,   151,87,119,   139,79,107,   127,75,95,    115,67,83,    107,59,75,
  54         95,51,63,     83,43,55,     71,35,43,     59,31,35,     47,23,27,     35,19,19,     23,11,11,     15,7,7,
  55 // 0xA*                                                  10 v
  56         219,195,187,  203,179,167,  191,163,155,  175,151,139,  163,135,123,  151,123,111,  135,111,95,   123,99,83,
  57         107,87,71,    95,75,59,     83,63,51,     67,51,39,     55,43,31,     39,31,23,     27,19,15,     15,11,7,
  58 // 0xB*                                                  11 v
  59         111,131,123,  103,123,111,  95,115,103,   87,107,95,    79,99,87,     71,91,79,     63,83,71,     55,75,63,
  60         47,67,55,     43,59,47,     35,51,39,     31,43,31,     23,35,23,     15,27,19,     11,19,11,     7,11,7,
  61 // 0xC*                                                  12 v
  62         255,243,27,   239,223,23,   219,203,19,   203,183,15,   187,167,15,   171,151,11,   155,131,7,    139,115,7,
  63         123,99,7,     107,83,0,     91,71,0,      75,55,0,      59,43,0,      43,31,0,      27,15,0,      11,7,0,
  64 // 0xD*                                                  13 v
  65         0,0,255,      11,11,239,    19,19,223,    27,27,207,    35,35,191,    43,43,175,    47,47,159,    47,47,143,
  66         47,47,127,    47,47,111,    47,47,95,     43,43,79,     35,35,63,     27,27,47,     19,19,31,     11,11,15,
  67 // 0xE*
  68         43,0,0,       59,0,0,       75,7,0,       95,7,0,       111,15,0,     127,23,7,     147,31,7,     163,39,11,
  69         183,51,15,    195,75,27,    207,99,43,    219,127,59,   227,151,79,   231,171,95,   239,191,119,  247,211,139,
  70 // 0xF*                                                  14 ^
  71         167,123,59,   183,155,55,   199,195,55,   231,227,87,   127,191,255,  171,231,255,  215,255,255,  103,0,0,
  72         139,0,0,      179,0,0,      215,0,0,      255,0,0,      255,243,147,  255,247,199,  255,255,255,  159,91,83
  73 }; //                                                    15 ^
  74
  75 void Palette_SetupSpecialPalettes(void)
  76 {
  77         int i;
  78         int fullbright_start, fullbright_end;
  79         int pants_start, pants_end;
  80         int shirt_start, shirt_end;
  81         int reversed_start, reversed_end;
  82         int transparentcolor;
  83         unsigned char *colormap;
  84         fs_offset_t filesize;
  85
  86         colormap = FS_LoadFile("gfx/colormap.lmp", tempmempool, true, &filesize);
  87         if (colormap && filesize >= 16385)
  88                 fullbright_start = 256 - colormap[16384];
  89         else
  90                 fullbright_start = 256;
  91         if (colormap)
  92                 Mem_Free(colormap);
  93         fullbright_end = 256;
  94         pants_start = 96;
  95         pants_end = 112;
  96         shirt_start = 16;
  97         shirt_end = 32;
  98         reversed_start = 128;
  99         reversed_end = 224;
 100         transparentcolor = 255;
 101
 102         for (i = 0;i < 256;i++)
 103                 palette_transparent[i] = palette_complete[i];
 104         palette_transparent[transparentcolor] = 0;
 105
 106         for (i = 0;i < fullbright_start;i++)
 107                 palette_nofullbrights[i] = palette_complete[i];
 108         for (i = fullbright_start;i < fullbright_end;i++)
 109                 palette_nofullbrights[i] = palette_complete[0];
 110
 111         for (i = 0;i < 256;i++)
 112                 palette_onlyfullbrights[i] = 0;
 113         for (i = fullbright_start;i < fullbright_end;i++)
 114                 palette_onlyfullbrights[i] = palette_complete[i];
 115
 116         for (i = 0;i < 256;i++)
 117                 palette_nocolormapnofullbrights[i] = palette_complete[i];
 118         for (i = pants_start;i < pants_end;i++)
 119                 palette_nocolormapnofullbrights[i] = 0;
 120         for (i = shirt_start;i < shirt_end;i++)
 121                 palette_nocolormapnofullbrights[i] = 0;
 122         for (i = fullbright_start;i < fullbright_end;i++)
 123                 palette_nocolormapnofullbrights[i] = 0;
 124
 125         for (i = 0;i < 256;i++)
 126                 palette_nocolormap[i] = palette_complete[i];
 127         for (i = pants_start;i < pants_end;i++)
 128                 palette_nocolormap[i] = 0;
 129         for (i = shirt_start;i < shirt_end;i++)
 130                 palette_nocolormap[i] = 0;
 131
 132         for (i = 0;i < 256;i++)
 133                 palette_pantsaswhite[i] = 0;
 134         for (i = pants_start;i < pants_end;i++)
 135         {
 136                 if (i >= reversed_start && i < reversed_end)
 137                         palette_pantsaswhite[i] = palette_complete[15 - (i - pants_start)];
 138                 else
 139                         palette_pantsaswhite[i] = palette_complete[i - pants_start];
 140         }
 141
 142         for (i = 0;i < 256;i++)
 143                 palette_shirtaswhite[i] = 0;
 144         for (i = shirt_start;i < shirt_end;i++)
 145         {
 146                 if (i >= reversed_start && i < reversed_end)
 147                         palette_shirtaswhite[i] = palette_complete[15 - (i - shirt_start)];
 148                 else
 149                         palette_shirtaswhite[i] = palette_complete[i - shirt_start];
 150         }
 151
 152         for (i = 0;i < 256;i++)
 153                 palette_alpha[i] = 0xFFFFFFFF;
 154         palette_alpha[transparentcolor] = 0;
 155
 156         for (i = 0;i < 256;i++)
 157                 palette_font[i] = palette_complete[i];
 158         palette_font[0] = 0;
 159 }
 160
 161 void BuildGammaTable8(float prescale, float gamma, float scale, float base, unsigned char *out, int rampsize)
 162 {
 163         int i, adjusted;
 164         double invgamma;
 165
 166         invgamma = 1.0 / gamma;
 167         prescale /= (double) (rampsize - 1);
 168         for (i = 0;i < rampsize;i++)
 169         {
 170                 adjusted = (int) (255.0 * (pow((double) i * prescale, invgamma) * scale + base) + 0.5);
 171                 out[i] = bound(0, adjusted, 255);
 172         }
 173 }
 174
 175 void BuildGammaTable16(float prescale, float gamma, float scale, float base, unsigned short *out, int rampsize)
 176 {
 177         int i, adjusted;
 178         double invgamma;
 179
 180         invgamma = 1.0 / gamma;
 181         prescale /= (double) (rampsize - 1);
 182         for (i = 0;i < rampsize;i++)
 183         {
 184                 adjusted = (int) (65535.0 * (pow((double) i * prescale, invgamma) * scale + base) + 0.5);
 185                 out[i] = bound(0, adjusted, 65535);
 186         }
 187 }
 188
 189 void Palette_Shutdown(void)
 190 {
 191 }
 192
 193 void Palette_NewMap(void)
 194 {
 195 }
 196
 197 void Palette_Load(void)
 198 {
 199         int i;
 200         float gamma, scale, base;
 201         fs_offset_t filesize;
 202         unsigned char *in, *out, *palfile;
 203         unsigned char texturegammaramp[256];
 204
 205         gamma = 1;
 206         scale = 1;
 207         base = 0;
 208 // COMMANDLINEOPTION: Client: -texgamma <number> sets the quake palette gamma, allowing you to make quake textures brighter/darker, not recommended
 209         i = COM_CheckParm("-texgamma");
 210         if (i)
 211                 gamma = atof(com_argv[i + 1]);
 212 // COMMANDLINEOPTION: Client: -texcontrast <number> sets the quake palette contrast, allowing you to make quake textures brighter/darker, not recommended
 213         i = COM_CheckParm("-texcontrast");
 214         if (i)
 215                 scale = atof(com_argv[i + 1]);
 216 // COMMANDLINEOPTION: Client: -texbrightness <number> sets the quake palette brightness (brightness of black), allowing you to make quake textures brighter/darker, not recommended
 217         i = COM_CheckParm("-texbrightness");
 218         if (i)
 219                 base = atof(com_argv[i + 1]);
 220         gamma = bound(0.01, gamma, 10.0);
 221         scale = bound(0.01, scale, 10.0);
 222         base = bound(0, base, 0.95);
 223
 224         BuildGammaTable8(1.0f, gamma, scale, base, texturegammaramp, 256);
 225
 226         palfile = (unsigned char *)FS_LoadFile ("gfx/palette.lmp", tempmempool, false, &filesize);
 227         if (palfile && filesize >= 768)
 228                 in = palfile;
 229         else
 230         {
 231                 Con_DPrint("Couldn't load gfx/palette.lmp, falling back on internal palette\n");
 232                 in = host_quakepal;
 233         }
 234         out = (unsigned char *) palette_complete; // palette is accessed as 32bit for speed reasons, but is created as 8bit bytes
 235         for (i = 0;i < 256;i++)
 236         {
 237                 *out++ = texturegammaramp[*in++];
 238                 *out++ = texturegammaramp[*in++];
 239                 *out++ = texturegammaramp[*in++];
 240                 *out++ = 255;
 241         }
 242         if (palfile)
 243                 Mem_Free(palfile);
 244
 245 if(*r_colormap_palette.string)
 246         palfile = (unsigned char *)FS_LoadFile (r_colormap_palette.string, tempmempool, false, &filesize);
 247 else
 248         palfile = NULL;
 249
 250 in = palfile;
 251 if (palfile && filesize >= 48)
 252 {
 253         out = (unsigned char *) palette_shirtcolormap;
 254         for (i = 0;i < 16;i++)
 255         {
 256                 *out++ = texturegammaramp[*in++];
 257                 *out++ = texturegammaramp[*in++];
 258                 *out++ = texturegammaramp[*in++];
 259                 *out++ = 255;
 260         }
 261 }
 262 else
 263         for(i = 0; i < 16; ++i)
 264                 palette_shirtcolormap[i] = palette_complete[(i << 4) | ((i >= 8 && i <= 13) ? 0x04 : 0x0C)];
 265
 266 if(palfile && filesize >= 48 + 48)
 267 {
 268         out = (unsigned char *) palette_shirtscoreboard;
 269         for (i = 0;i < 16;i++)
 270         {
 271                 *out++ = texturegammaramp[*in++];
 272                 *out++ = texturegammaramp[*in++];
 273                 *out++ = texturegammaramp[*in++];
 274                 *out++ = 255;
 275         }
 276 }
 277 else
 278         for(i = 0; i < 16; ++i)
 279                 palette_shirtscoreboard[i] = palette_complete[(i << 4) | 0x08];
 280
 281 if (palfile && filesize >= 48 + 48 + 48)
 282 {
 283         out = (unsigned char *) palette_pantscolormap;
 284         for (i = 0;i < 16;i++)
 285         {
 286                 *out++ = texturegammaramp[*in++];
 287                 *out++ = texturegammaramp[*in++];
 288                 *out++ = texturegammaramp[*in++];
 289                 *out++ = 255;
 290         }
 291 }
 292 else
 293         memcpy(palette_pantscolormap, palette_shirtcolormap, sizeof(palette_pantscolormap));
 294
 295 if (palfile && filesize >= 48 + 48 + 48 + 48)
 296 {
 297         out = (unsigned char *) palette_pantsscoreboard;
 298         for (i = 0;i < 16;i++)
 299         {
 300                 *out++ = texturegammaramp[*in++];
 301                 *out++ = texturegammaramp[*in++];
 302                 *out++ = texturegammaramp[*in++];
 303                 *out++ = 255;
 304         }
 305 }
 306 else
 307         memcpy(palette_pantsscoreboard, palette_shirtscoreboard, sizeof(palette_pantsscoreboard));
 308
 309 if(palfile)
 310         Mem_Free(palfile);
 311
 312         Palette_SetupSpecialPalettes();
 313 }
 314
 315 void Palette_Init(void)
 316 {
 317         R_RegisterModule("Palette", Palette_Load, Palette_Shutdown, Palette_NewMap);
 318         Cvar_RegisterVariable(&r_colormap_palette);
 319         Palette_Load();
 320 }