468a1624aff5de1a416d5c45f7545df57bf8c51e
[xonotic/darkplaces.git] / gl_draw.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20
21 #include "quakedef.h"
22 #include "image.h"
23 #include "wad.h"
24
25 #include "cl_video.h"
26 #include "cl_dyntexture.h"
27
28 dp_font_t dp_fonts[MAX_FONTS] = {{0}};
29
30 cvar_t r_textshadow = {CVAR_SAVE, "r_textshadow", "0", "draws a shadow on all text to improve readability (note: value controls offset, 1 = 1 pixel, 1.5 = 1.5 pixels, etc)"};
31 cvar_t r_textbrightness = {CVAR_SAVE, "r_textbrightness", "0", "additional brightness for text color codes (0 keeps colors as is, 1 makes them all white)"};
32 cvar_t r_textcontrast = {CVAR_SAVE, "r_textcontrast", "1", "additional contrast for text color codes (1 keeps colors as is, 0 makes them all black)"};
33
34 extern cvar_t v_glslgamma;
35
36 //=============================================================================
37 /* Support Routines */
38
39 #define FONT_FILESIZE 13468
40 #define MAX_CACHED_PICS 1024
41 #define CACHEPICHASHSIZE 256
42 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
43 static cachepic_t cachepics[MAX_CACHED_PICS];
44 static int numcachepics;
45
46 static rtexturepool_t *drawtexturepool;
47
48 static const unsigned char concharimage[FONT_FILESIZE] =
49 {
50 #include "lhfont.h"
51 };
52
53 static rtexture_t *draw_generateconchars(void)
54 {
55         int i;
56         unsigned char buffer[65536][4], *data = NULL;
57         double random;
58
59         data = LoadTGA_BGRA (concharimage, FONT_FILESIZE);
60 // Gold numbers
61         for (i = 0;i < 8192;i++)
62         {
63                 random = lhrandom (0.0,1.0);
64                 buffer[i][2] = 83 + (unsigned char)(random * 64);
65                 buffer[i][1] = 71 + (unsigned char)(random * 32);
66                 buffer[i][0] = 23 + (unsigned char)(random * 16);
67                 buffer[i][3] = data[i*4+0];
68         }
69 // White chars
70         for (i = 8192;i < 32768;i++)
71         {
72                 random = lhrandom (0.0,1.0);
73                 buffer[i][2] = 95 + (unsigned char)(random * 64);
74                 buffer[i][1] = 95 + (unsigned char)(random * 64);
75                 buffer[i][0] = 95 + (unsigned char)(random * 64);
76                 buffer[i][3] = data[i*4+0];
77         }
78 // Gold numbers
79         for (i = 32768;i < 40960;i++)
80         {
81                 random = lhrandom (0.0,1.0);
82                 buffer[i][2] = 83 + (unsigned char)(random * 64);
83                 buffer[i][1] = 71 + (unsigned char)(random * 32);
84                 buffer[i][0] = 23 + (unsigned char)(random * 16);
85                 buffer[i][3] = data[i*4+0];
86         }
87 // Red chars
88         for (i = 40960;i < 65536;i++)
89         {
90                 random = lhrandom (0.0,1.0);
91                 buffer[i][2] = 96 + (unsigned char)(random * 64);
92                 buffer[i][1] = 43 + (unsigned char)(random * 32);
93                 buffer[i][0] = 27 + (unsigned char)(random * 32);
94                 buffer[i][3] = data[i*4+0];
95         }
96
97 #if 0
98         Image_WriteTGABGRA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
99 #endif
100
101         Mem_Free(data);
102         return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_BGRA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
103 }
104
105 static rtexture_t *draw_generateditherpattern(void)
106 {
107         int x, y;
108         unsigned char pixels[8][8];
109         for (y = 0;y < 8;y++)
110                 for (x = 0;x < 8;x++)
111                         pixels[y][x] = ((x^y) & 4) ? 254 : 0;
112         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, pixels[0], TEXTYPE_PALETTE, TEXF_FORCENEAREST | TEXF_PRECACHE, palette_bgra_transparent);
113 }
114
115 typedef struct embeddedpic_s
116 {
117         const char *name;
118         int width;
119         int height;
120         const char *pixels;
121 }
122 embeddedpic_t;
123
124 static const embeddedpic_t embeddedpics[] =
125 {
126         {
127         "gfx/prydoncursor001", 16, 16,
128         "477777774......."
129         "77.....6........"
130         "7.....6........."
131         "7....6.........."
132         "7.....6........."
133         "7..6...6........"
134         "7.6.6...6......."
135         "76...6...6......"
136         "4.....6.6......."
137         ".......6........"
138         "................"
139         "................"
140         "................"
141         "................"
142         "................"
143         "................"
144         },
145         {
146         "ui/mousepointer", 16, 16,
147         "477777774......."
148         "77.....6........"
149         "7.....6........."
150         "7....6.........."
151         "7.....6........."
152         "7..6...6........"
153         "7.6.6...6......."
154         "76...6...6......"
155         "4.....6.6......."
156         ".......6........"
157         "................"
158         "................"
159         "................"
160         "................"
161         "................"
162         "................"
163         },
164         {
165         "gfx/crosshair1", 16, 16,
166         "................"
167         "................"
168         "................"
169         "...33......33..."
170         "...355....553..."
171         "....577..775...."
172         ".....77..77....."
173         "................"
174         "................"
175         ".....77..77....."
176         "....577..775...."
177         "...355....553..."
178         "...33......33..."
179         "................"
180         "................"
181         "................"
182         },
183         {
184         "gfx/crosshair2", 16, 16,
185         "................"
186         "................"
187         "................"
188         "...3........3..."
189         "....5......5...."
190         ".....7....7....."
191         "......7..7......"
192         "................"
193         "................"
194         "......7..7......"
195         ".....7....7....."
196         "....5......5...."
197         "...3........3..."
198         "................"
199         "................"
200         "................"
201         },
202         {
203         "gfx/crosshair3", 16, 16,
204         "................"
205         ".......77......."
206         ".......77......."
207         "................"
208         "................"
209         ".......44......."
210         ".......44......."
211         ".77..44..44..77."
212         ".77..44..44..77."
213         ".......44......."
214         ".......44......."
215         "................"
216         "................"
217         ".......77......."
218         ".......77......."
219         "................"
220         },
221         {
222         "gfx/crosshair4", 16, 16,
223         "................"
224         "................"
225         "................"
226         "................"
227         "................"
228         "................"
229         "................"
230         "................"
231         "........7777777."
232         "........752....."
233         "........72......"
234         "........7......."
235         "........7......."
236         "........7......."
237         "........7......."
238         "................"
239         },
240         {
241         "gfx/crosshair5", 8, 8,
242         "........"
243         "........"
244         "....7..."
245         "........"
246         "..7.7.7."
247         "........"
248         "....7..."
249         "........"
250         },
251         {
252         "gfx/crosshair6", 2, 2,
253         "77"
254         "77"
255         },
256         {
257         "gfx/crosshair7", 16, 16,
258         "................"
259         ".3............3."
260         "..5...2332...5.."
261         "...7.3....3.7..."
262         "....7......7...."
263         "...3.7....7.3..."
264         "..2...7..7...2.."
265         "..3..........3.."
266         "..3..........3.."
267         "..2...7..7...2.."
268         "...3.7....7.3..."
269         "....7......7...."
270         "...7.3....3.7..."
271         "..5...2332...5.."
272         ".3............3."
273         "................"
274         },
275         {
276         "gfx/editlights/cursor", 16, 16,
277         "................"
278         ".3............3."
279         "..5...2332...5.."
280         "...7.3....3.7..."
281         "....7......7...."
282         "...3.7....7.3..."
283         "..2...7..7...2.."
284         "..3..........3.."
285         "..3..........3.."
286         "..2...7..7...2.."
287         "...3.7....7.3..."
288         "....7......7...."
289         "...7.3....3.7..."
290         "..5...2332...5.."
291         ".3............3."
292         "................"
293         },
294         {
295         "gfx/editlights/light", 16, 16,
296         "................"
297         "................"
298         "......1111......"
299         "....11233211...."
300         "...1234554321..."
301         "...1356776531..."
302         "..124677776421.."
303         "..135777777531.."
304         "..135777777531.."
305         "..124677776421.."
306         "...1356776531..."
307         "...1234554321..."
308         "....11233211...."
309         "......1111......"
310         "................"
311         "................"
312         },
313         {
314         "gfx/editlights/noshadow", 16, 16,
315         "................"
316         "................"
317         "......1111......"
318         "....11233211...."
319         "...1234554321..."
320         "...1356226531..."
321         "..12462..26421.."
322         "..1352....2531.."
323         "..1352....2531.."
324         "..12462..26421.."
325         "...1356226531..."
326         "...1234554321..."
327         "....11233211...."
328         "......1111......"
329         "................"
330         "................"
331         },
332         {
333         "gfx/editlights/selection", 16, 16,
334         "................"
335         ".777752..257777."
336         ".742........247."
337         ".72..........27."
338         ".7............7."
339         ".5............5."
340         ".2............2."
341         "................"
342         "................"
343         ".2............2."
344         ".5............5."
345         ".7............7."
346         ".72..........27."
347         ".742........247."
348         ".777752..257777."
349         "................"
350         },
351         {
352         "gfx/editlights/cubemaplight", 16, 16,
353         "................"
354         "................"
355         "......2772......"
356         "....27755772...."
357         "..277533335772.."
358         "..753333333357.."
359         "..777533335777.."
360         "..735775577537.."
361         "..733357753337.."
362         "..733337733337.."
363         "..753337733357.."
364         "..277537735772.."
365         "....27777772...."
366         "......2772......"
367         "................"
368         "................"
369         },
370         {
371         "gfx/editlights/cubemapnoshadowlight", 16, 16,
372         "................"
373         "................"
374         "......2772......"
375         "....27722772...."
376         "..2772....2772.."
377         "..72........27.."
378         "..7772....2777.."
379         "..7.27722772.7.."
380         "..7...2772...7.."
381         "..7....77....7.."
382         "..72...77...27.."
383         "..2772.77.2772.."
384         "....27777772...."
385         "......2772......"
386         "................"
387         "................"
388         },
389         {NULL, 0, 0, NULL}
390 };
391
392 static rtexture_t *draw_generatepic(const char *name, qboolean quiet)
393 {
394         const embeddedpic_t *p;
395         for (p = embeddedpics;p->name;p++)
396                 if (!strcmp(name, p->name))
397                         return R_LoadTexture2D(drawtexturepool, p->name, p->width, p->height, (const unsigned char *)p->pixels, TEXTYPE_PALETTE, TEXF_ALPHA | TEXF_PRECACHE, palette_bgra_embeddedpic);
398         if (!strcmp(name, "gfx/conchars"))
399                 return draw_generateconchars();
400         if (!strcmp(name, "gfx/colorcontrol/ditherpattern"))
401                 return draw_generateditherpattern();
402         if (!quiet)
403                 Con_Printf("Draw_CachePic: failed to load %s\n", name);
404         return r_texture_notexture;
405 }
406
407
408 /*
409 ================
410 Draw_CachePic
411 ================
412 */
413 // FIXME: move this to client somehow
414 cachepic_t *Draw_CachePic_Flags(const char *path, unsigned int cachepicflags)
415 {
416         int crc, hashkey;
417         cachepic_t *pic;
418         int flags;
419         fs_offset_t lmpsize;
420         unsigned char *lmpdata;
421         char lmpname[MAX_QPATH];
422
423         // check whether the picture has already been cached
424         crc = CRC_Block((unsigned char *)path, strlen(path));
425         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
426         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
427                 if (!strcmp (path, pic->name))
428                         return pic;
429
430         if (numcachepics == MAX_CACHED_PICS)
431         {
432                 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
433                 // FIXME: support NULL in callers?
434                 return cachepics; // return the first one
435         }
436         pic = cachepics + (numcachepics++);
437         strlcpy (pic->name, path, sizeof(pic->name));
438         // link into list
439         pic->chain = cachepichash[hashkey];
440         cachepichash[hashkey] = pic;
441
442         // check whether it is an dynamic texture (if so, we can directly use its texture handler)
443         pic->tex = CL_GetDynTexture( path );
444         // if so, set the width/height, too
445         if( pic->tex ) {
446                 pic->width = R_TextureWidth(pic->tex);
447                 pic->height = R_TextureHeight(pic->tex);
448                 // we're done now (early-out)
449                 return pic;
450         }
451
452         flags = TEXF_ALPHA;
453         if (!(cachepicflags & CACHEPICFLAG_NOTPERSISTENT))
454                 flags |= TEXF_PRECACHE;
455         if (!(cachepicflags & CACHEPICFLAG_NOCLAMP))
456                 flags |= TEXF_CLAMP;
457         if (!(cachepicflags & CACHEPICFLAG_NOCOMPRESSION) && gl_texturecompression_2d.integer)
458                 flags |= TEXF_COMPRESS;
459
460         // load a high quality image from disk if possible
461         pic->tex = loadtextureimage(drawtexturepool, path, false, flags, true);
462         if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
463         {
464                 // compatibility with older versions which did not require gfx/ prefix
465                 pic->tex = loadtextureimage(drawtexturepool, path + 4, false, flags, true);
466         }
467         // if a high quality image was loaded, set the pic's size to match it, just
468         // in case there's no low quality version to get the size from
469         if (pic->tex)
470         {
471                 pic->width = R_TextureWidth(pic->tex);
472                 pic->height = R_TextureHeight(pic->tex);
473         }
474
475         // now read the low quality version (wad or lmp file), and take the pic
476         // size from that even if we don't upload the texture, this way the pics
477         // show up the right size in the menu even if they were replaced with
478         // higher or lower resolution versions
479         dpsnprintf(lmpname, sizeof(lmpname), "%s.lmp", path);
480         if (!strncmp(path, "gfx/", 4) && (lmpdata = FS_LoadFile(lmpname, tempmempool, false, &lmpsize)))
481         {
482                 if (developer_loading.integer)
483                         Con_Printf("loading lump \"%s\"\n", path);
484
485                 if (lmpsize >= 9)
486                 {
487                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
488                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
489                         // if no high quality replacement image was found, upload the original low quality texture
490                         if (!pic->tex)
491                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags & ~TEXF_COMPRESS, palette_bgra_transparent);
492                 }
493                 Mem_Free(lmpdata);
494         }
495         else if ((lmpdata = W_GetLumpName (path + 4)))
496         {
497                 if (developer_loading.integer)
498                         Con_Printf("loading gfx.wad lump \"%s\"\n", path + 4);
499
500                 if (!strcmp(path, "gfx/conchars"))
501                 {
502                         // conchars is a raw image and with color 0 as transparent instead of 255
503                         pic->width = 128;
504                         pic->height = 128;
505                         // if no high quality replacement image was found, upload the original low quality texture
506                         if (!pic->tex)
507                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, lmpdata, TEXTYPE_PALETTE, flags & ~TEXF_COMPRESS, palette_bgra_font);
508                 }
509                 else
510                 {
511                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
512                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
513                         // if no high quality replacement image was found, upload the original low quality texture
514                         if (!pic->tex)
515                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags & ~TEXF_COMPRESS, palette_bgra_transparent);
516                 }
517         }
518
519         // if it's not found on disk, generate an image
520         if (pic->tex == NULL)
521         {
522                 pic->tex = draw_generatepic(path, (cachepicflags & CACHEPICFLAG_QUIET) != 0);
523                 pic->width = R_TextureWidth(pic->tex);
524                 pic->height = R_TextureHeight(pic->tex);
525         }
526
527         return pic;
528 }
529
530 cachepic_t *Draw_CachePic (const char *path)
531 {
532         return Draw_CachePic_Flags (path, 0);
533 }
534
535 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels_bgra)
536 {
537         int crc, hashkey;
538         cachepic_t *pic;
539
540         crc = CRC_Block((unsigned char *)picname, strlen(picname));
541         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
542         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
543                 if (!strcmp (picname, pic->name))
544                         break;
545
546         if (pic)
547         {
548                 if (pic->tex && pic->width == width && pic->height == height)
549                 {
550                         R_UpdateTexture(pic->tex, pixels_bgra, 0, 0, width, height);
551                         return pic;
552                 }
553         }
554         else
555         {
556                 if (pic == NULL)
557                 {
558                         if (numcachepics == MAX_CACHED_PICS)
559                         {
560                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
561                                 // FIXME: support NULL in callers?
562                                 return cachepics; // return the first one
563                         }
564                         pic = cachepics + (numcachepics++);
565                         strlcpy (pic->name, picname, sizeof(pic->name));
566                         // link into list
567                         pic->chain = cachepichash[hashkey];
568                         cachepichash[hashkey] = pic;
569                 }
570         }
571
572         pic->width = width;
573         pic->height = height;
574         if (pic->tex)
575                 R_FreeTexture(pic->tex);
576         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels_bgra, TEXTYPE_BGRA, alpha ? TEXF_ALPHA : 0, NULL);
577         return pic;
578 }
579
580 void Draw_FreePic(const char *picname)
581 {
582         int crc;
583         int hashkey;
584         cachepic_t *pic;
585         // this doesn't really free the pic, but does free it's texture
586         crc = CRC_Block((unsigned char *)picname, strlen(picname));
587         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
588         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
589         {
590                 if (!strcmp (picname, pic->name) && pic->tex)
591                 {
592                         R_FreeTexture(pic->tex);
593                         pic->width = 0;
594                         pic->height = 0;
595                         return;
596                 }
597         }
598 }
599
600 extern int con_linewidth; // to force rewrapping
601 static void LoadFont(qboolean override, const char *name, dp_font_t *fnt)
602 {
603         int i;
604         float maxwidth, scale;
605         char widthfile[MAX_QPATH];
606         char *widthbuf;
607         fs_offset_t widthbufsize;
608
609         if(override || !fnt->texpath[0])
610                 strlcpy(fnt->texpath, name, sizeof(fnt->texpath));
611
612         if(drawtexturepool == NULL)
613                 return; // before gl_draw_start, so will be loaded later
614
615         fnt->tex = Draw_CachePic_Flags(fnt->texpath, CACHEPICFLAG_QUIET | CACHEPICFLAG_NOCOMPRESSION)->tex;
616         if(fnt->tex == r_texture_notexture)
617         {
618                 fnt->tex = Draw_CachePic_Flags("gfx/conchars", CACHEPICFLAG_NOCOMPRESSION)->tex;
619                 strlcpy(widthfile, "gfx/conchars.width", sizeof(widthfile));
620         }
621         else
622                 dpsnprintf(widthfile, sizeof(widthfile), "%s.width", fnt->texpath);
623
624         // unspecified width == 1 (base width)
625         for(i = 1; i < 256; ++i)
626                 fnt->width_of[i] = 1;
627         scale = 1;
628
629         // FIXME load "name.width", if it fails, fill all with 1
630         if((widthbuf = (char *) FS_LoadFile(widthfile, tempmempool, true, &widthbufsize)))
631         {
632                 float extraspacing = 0;
633                 const char *p = widthbuf;
634                 int ch = 0;
635
636                 while(ch < 256)
637                 {
638                         if(!COM_ParseToken_Simple(&p, false, false))
639                                 return;
640
641                         switch(*com_token)
642                         {
643                                 case '0':
644                                 case '1':
645                                 case '2':
646                                 case '3':
647                                 case '4':
648                                 case '5':
649                                 case '6':
650                                 case '7':
651                                 case '8':
652                                 case '9':
653                                 case '+':
654                                 case '-':
655                                 case '.':
656                                         fnt->width_of[ch++] = atof(com_token) + extraspacing;
657                                         break;
658                                 default:
659                                         if(!strcmp(com_token, "extraspacing"))
660                                         {
661                                                 if(!COM_ParseToken_Simple(&p, false, false))
662                                                         return;
663                                                 extraspacing = atof(com_token);
664                                         }
665                                         else if(!strcmp(com_token, "scale"))
666                                         {
667                                                 if(!COM_ParseToken_Simple(&p, false, false))
668                                                         return;
669                                                 scale = atof(com_token);
670                                         }
671                                         else
672                                         {
673                                                 Con_Printf("Warning: skipped unknown font property %s\n", com_token);
674                                                 if(!COM_ParseToken_Simple(&p, false, false))
675                                                         return;
676                                         }
677                                         break;
678                         }
679                 }
680
681                 Mem_Free(widthbuf);
682         }
683
684         maxwidth = fnt->width_of[1];
685         for(i = 2; i < 256; ++i)
686                 maxwidth = max(maxwidth, fnt->width_of[i]);
687         fnt->maxwidth = maxwidth;
688
689         // fix up maxwidth for overlap
690         fnt->maxwidth *= scale;
691         fnt->scale = scale;
692
693         if(fnt == FONT_CONSOLE)
694                 con_linewidth = -1; // rewrap console in next frame
695 }
696
697 static dp_font_t *FindFont(const char *title)
698 {
699         int i;
700         for(i = 0; i < MAX_FONTS; ++i)
701                 if(!strcmp(dp_fonts[i].title, title))
702                         return &dp_fonts[i];
703         return NULL;
704 }
705
706 static void LoadFont_f(void)
707 {
708         dp_font_t *f;
709         int i;
710         if(Cmd_Argc() < 2)
711         {
712                 Con_Printf("Available font commands:\n");
713                 for(i = 0; i < MAX_FONTS; ++i)
714                         Con_Printf("  loadfont %s gfx/tgafile\n", dp_fonts[i].title);
715                 return;
716         }
717         f = FindFont(Cmd_Argv(1));
718         if(f == NULL)
719         {
720                 Con_Printf("font function not found\n");
721                 return;
722         }
723         LoadFont(true, (Cmd_Argc() < 3) ? "gfx/conchars" : Cmd_Argv(2), f);
724 }
725
726 /*
727 ===============
728 Draw_Init
729 ===============
730 */
731 static void gl_draw_start(void)
732 {
733         int i;
734         drawtexturepool = R_AllocTexturePool();
735
736         numcachepics = 0;
737         memset(cachepichash, 0, sizeof(cachepichash));
738
739         for(i = 0; i < MAX_FONTS; ++i)
740                 LoadFont(false, va("gfx/font_%s", dp_fonts[i].title), &dp_fonts[i]);
741
742         // draw the loading screen so people have something to see in the newly opened window
743         SCR_UpdateLoadingScreen(true);
744 }
745
746 static void gl_draw_shutdown(void)
747 {
748         R_FreeTexturePool(&drawtexturepool);
749
750         numcachepics = 0;
751         memset(cachepichash, 0, sizeof(cachepichash));
752 }
753
754 static void gl_draw_newmap(void)
755 {
756 }
757
758 void GL_Draw_Init (void)
759 {
760         int i, j;
761         Cvar_RegisterVariable(&r_textshadow);
762         Cvar_RegisterVariable(&r_textbrightness);
763         Cvar_RegisterVariable(&r_textcontrast);
764         Cmd_AddCommand ("loadfont",LoadFont_f, "loadfont function tganame loads a font; example: loadfont console gfx/veramono; loadfont without arguments lists the available functions");
765         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
766
767         strlcpy(FONT_DEFAULT->title, "default", sizeof(FONT_DEFAULT->title));
768                 strlcpy(FONT_DEFAULT->texpath, "gfx/conchars", sizeof(FONT_DEFAULT->texpath));
769         strlcpy(FONT_CONSOLE->title, "console", sizeof(FONT_CONSOLE->title));
770         strlcpy(FONT_SBAR->title, "sbar", sizeof(FONT_SBAR->title));
771         strlcpy(FONT_NOTIFY->title, "notify", sizeof(FONT_NOTIFY->title));
772         strlcpy(FONT_CHAT->title, "chat", sizeof(FONT_CHAT->title));
773         strlcpy(FONT_CENTERPRINT->title, "centerprint", sizeof(FONT_CENTERPRINT->title));
774         strlcpy(FONT_INFOBAR->title, "infobar", sizeof(FONT_INFOBAR->title));
775         strlcpy(FONT_MENU->title, "menu", sizeof(FONT_MENU->title));
776         for(i = 0, j = 0; i < MAX_USERFONTS; ++i)
777                 if(!FONT_USER[i].title[0])
778                         dpsnprintf(FONT_USER[i].title, sizeof(FONT_USER[i].title), "user%d", j++);
779 }
780
781 void _DrawQ_Setup(void)
782 {
783         if (r_refdef.draw2dstage)
784                 return;
785         r_refdef.draw2dstage = true;
786         CHECKGLERROR
787         qglViewport(r_refdef.view.x, vid.height - (r_refdef.view.y + r_refdef.view.height), r_refdef.view.width, r_refdef.view.height);CHECKGLERROR
788         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
789         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
790         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
791         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
792         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
793         R_Mesh_Matrix(&identitymatrix);
794
795         GL_DepthMask(true);
796         GL_DepthRange(0, 1);
797         GL_PolygonOffset(0, 0);
798         GL_DepthTest(false);
799         GL_Color(1,1,1,1);
800         GL_AlphaTest(false);
801         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
802
803         R_SetupGenericShader(true);
804 }
805
806 static void _DrawQ_ProcessDrawFlag(int flags)
807 {
808         _DrawQ_Setup();
809         CHECKGLERROR
810         if(flags == DRAWFLAG_ADDITIVE)
811                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
812         else if(flags == DRAWFLAG_MODULATE)
813                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
814         else if(flags == DRAWFLAG_2XMODULATE)
815                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
816         else
817                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
818 }
819
820 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
821 {
822         float floats[20];
823
824         _DrawQ_ProcessDrawFlag(flags);
825         GL_Color(red, green, blue, alpha);
826
827         R_Mesh_VertexPointer(floats, 0, 0);
828         R_Mesh_ColorPointer(NULL, 0, 0);
829         R_Mesh_ResetTextureState();
830         R_SetupGenericShader(pic != NULL);
831         if (pic)
832         {
833                 if (width == 0)
834                         width = pic->width;
835                 if (height == 0)
836                         height = pic->height;
837                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
838                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
839
840 #if 1
841                 floats[12] = 0.0f;floats[13] = 0.0f;
842                 floats[14] = 1.0f;floats[15] = 0.0f;
843                 floats[16] = 1.0f;floats[17] = 1.0f;
844                 floats[18] = 0.0f;floats[19] = 1.0f;
845 #else
846       // AK07: lets be texel correct on the corners
847       {
848          float horz_offset = 0.5f / pic->width;
849          float vert_offset = 0.5f / pic->height;
850
851                    floats[12] = 0.0f + horz_offset;floats[13] = 0.0f + vert_offset;
852                    floats[14] = 1.0f - horz_offset;floats[15] = 0.0f + vert_offset;
853                    floats[16] = 1.0f - horz_offset;floats[17] = 1.0f - vert_offset;
854                    floats[18] = 0.0f + horz_offset;floats[19] = 1.0f - vert_offset;
855       }
856 #endif
857         }
858
859         floats[2] = floats[5] = floats[8] = floats[11] = 0;
860         floats[0] = floats[9] = x;
861         floats[1] = floats[4] = y;
862         floats[3] = floats[6] = x + width;
863         floats[7] = floats[10] = y + height;
864
865         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
866 }
867
868 void DrawQ_Fill(float x, float y, float width, float height, float red, float green, float blue, float alpha, int flags)
869 {
870         float floats[12];
871
872         _DrawQ_ProcessDrawFlag(flags);
873         GL_Color(red, green, blue, alpha);
874
875         R_Mesh_VertexPointer(floats, 0, 0);
876         R_Mesh_ColorPointer(NULL, 0, 0);
877         R_Mesh_ResetTextureState();
878         R_SetupGenericShader(false);
879
880         floats[2] = floats[5] = floats[8] = floats[11] = 0;
881         floats[0] = floats[9] = x;
882         floats[1] = floats[4] = y;
883         floats[3] = floats[6] = x + width;
884         floats[7] = floats[10] = y + height;
885
886         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
887 }
888
889 // color tag printing
890 static const vec4_t string_colors[] =
891 {
892         // Quake3 colors
893         // LordHavoc: why on earth is cyan before magenta in Quake3?
894         // LordHavoc: note: Doom3 uses white for [0] and [7]
895         {0.0, 0.0, 0.0, 1.0}, // black
896         {1.0, 0.0, 0.0, 1.0}, // red
897         {0.0, 1.0, 0.0, 1.0}, // green
898         {1.0, 1.0, 0.0, 1.0}, // yellow
899         {0.0, 0.0, 1.0, 1.0}, // blue
900         {0.0, 1.0, 1.0, 1.0}, // cyan
901         {1.0, 0.0, 1.0, 1.0}, // magenta
902         {1.0, 1.0, 1.0, 1.0}, // white
903         // [515]'s BX_COLOREDTEXT extension
904         {1.0, 1.0, 1.0, 0.5}, // half transparent
905         {0.5, 0.5, 0.5, 1.0}  // half brightness
906         // Black's color table
907         //{1.0, 1.0, 1.0, 1.0},
908         //{1.0, 0.0, 0.0, 1.0},
909         //{0.0, 1.0, 0.0, 1.0},
910         //{0.0, 0.0, 1.0, 1.0},
911         //{1.0, 1.0, 0.0, 1.0},
912         //{0.0, 1.0, 1.0, 1.0},
913         //{1.0, 0.0, 1.0, 1.0},
914         //{0.1, 0.1, 0.1, 1.0}
915 };
916
917 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
918
919 static void DrawQ_GetTextColor(float color[4], int colorindex, float r, float g, float b, float a, qboolean shadow)
920 {
921         float C = r_textcontrast.value;
922         float B = r_textbrightness.value;
923         Vector4Copy(string_colors[colorindex], color);
924         Vector4Set(color, (color[0] * C + B) * r, (color[1] * C + B) * g, (color[2] * C + B) * b, color[3] * a);
925         if (shadow)
926         {
927                 float shadowalpha = color[0]+color[1]+color[2] * 0.8;
928                 Vector4Set(color, 0, 0, 0, color[3] * bound(0, shadowalpha, 1));
929         }
930 }
931
932 float DrawQ_TextWidth_Font_UntilWidth_TrackColors(const char *text, size_t *maxlen, int *outcolor, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxwidth)
933 {
934         int num, colorindex = STRING_COLOR_DEFAULT;
935         size_t i;
936         float x = 0;
937
938         if (*maxlen < 1)
939                 *maxlen = 1<<30;
940
941         if (!outcolor || *outcolor == -1)
942                 colorindex = STRING_COLOR_DEFAULT;
943         else
944                 colorindex = *outcolor;
945
946         maxwidth /= fnt->scale;
947
948         for (i = 0;i < *maxlen && text[i];i++)
949         {
950                 if (text[i] == ' ')
951                 {
952                         if(x + fnt->width_of[' '] > maxwidth)
953                                 break; // oops, can't draw this
954                         x += fnt->width_of[' '];
955                         continue;
956                 }
957                 if (text[i] == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < *maxlen)
958                 {
959                         if (text[i+1] == STRING_COLOR_TAG)
960                         {
961                                 i++;
962                         }
963                         else if (text[i+1] >= '0' && text[i+1] <= '9')
964                         {
965                                 colorindex = text[i+1] - '0';
966                                 i++;
967                                 continue;
968                         }
969                 }
970                 num = (unsigned char) text[i];
971                 if(x + fnt->width_of[num] > maxwidth)
972                         break; // oops, can't draw this
973                 x += fnt->width_of[num];
974         }
975
976         *maxlen = i;
977
978         if (outcolor)
979                 *outcolor = colorindex;
980
981         return x * fnt->scale;
982 }
983
984 float DrawQ_String_Font(float startx, float starty, const char *text, size_t maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes, const dp_font_t *fnt)
985 {
986         int num, shadow, colorindex = STRING_COLOR_DEFAULT;
987         size_t i;
988         float x = startx, y, s, t, u, v, thisw;
989         float *av, *at, *ac;
990         float color[4];
991         int batchcount;
992         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
993         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
994         float color4f[QUADELEMENTS_MAXQUADS*4*4];
995
996         int tw, th;
997         tw = R_TextureWidth(fnt->tex);
998         th = R_TextureHeight(fnt->tex);
999
1000         starty -= (fnt->scale - 1) * h * 0.5; // center
1001         w *= fnt->scale;
1002         h *= fnt->scale;
1003
1004         if (maxlen < 1)
1005                 maxlen = 1<<30;
1006
1007         _DrawQ_ProcessDrawFlag(flags);
1008
1009         R_Mesh_ColorPointer(color4f, 0, 0);
1010         R_Mesh_ResetTextureState();
1011         R_Mesh_TexBind(0, R_GetTexture(fnt->tex));
1012         R_Mesh_TexCoordPointer(0, 2, texcoord2f, 0, 0);
1013         R_Mesh_VertexPointer(vertex3f, 0, 0);
1014         R_SetupGenericShader(true);
1015
1016         ac = color4f;
1017         at = texcoord2f;
1018         av = vertex3f;
1019         batchcount = 0;
1020
1021         for (shadow = r_textshadow.value != 0 && basealpha > 0;shadow >= 0;shadow--)
1022         {
1023                 if (!outcolor || *outcolor == -1)
1024                         colorindex = STRING_COLOR_DEFAULT;
1025                 else
1026                         colorindex = *outcolor;
1027                 DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
1028
1029                 x = startx;
1030                 y = starty;
1031                 if (shadow)
1032                 {
1033                         x += r_textshadow.value;
1034                         y += r_textshadow.value;
1035                 }
1036                 for (i = 0;i < maxlen && text[i];i++)
1037                 {
1038                         if (text[i] == ' ')
1039                         {
1040                                 x += fnt->width_of[' '] * w;
1041                                 continue;
1042                         }
1043                         if (text[i] == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < maxlen)
1044                         {
1045                                 if (text[i+1] == STRING_COLOR_TAG)
1046                                 {
1047                                         i++;
1048                                 }
1049                                 else if (text[i+1] >= '0' && text[i+1] <= '9')
1050                                 {
1051                                         colorindex = text[i+1] - '0';
1052                                         DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
1053                                         i++;
1054                                         continue;
1055                                 }
1056                         }
1057                         num = (unsigned char) text[i];
1058                         thisw = fnt->width_of[num];
1059                         // FIXME make these smaller to just include the occupied part of the character for slightly faster rendering
1060                         s = (num & 15)*0.0625f + (0.5f / tw);
1061                         t = (num >> 4)*0.0625f + (0.5f / th);
1062                         u = 0.0625f * thisw - (1.0f / tw);
1063                         v = 0.0625f - (1.0f / th);
1064                         ac[ 0] = color[0];ac[ 1] = color[1];ac[ 2] = color[2];ac[ 3] = color[3];
1065                         ac[ 4] = color[0];ac[ 5] = color[1];ac[ 6] = color[2];ac[ 7] = color[3];
1066                         ac[ 8] = color[0];ac[ 9] = color[1];ac[10] = color[2];ac[11] = color[3];
1067                         ac[12] = color[0];ac[13] = color[1];ac[14] = color[2];ac[15] = color[3];
1068                         at[ 0] = s  ;at[ 1] = t  ;
1069                         at[ 2] = s+u;at[ 3] = t  ;
1070                         at[ 4] = s+u;at[ 5] = t+v;
1071                         at[ 6] = s  ;at[ 7] = t+v;
1072                         av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
1073                         av[ 3] = x+w*thisw;av[ 4] = y  ;av[ 5] = 10;
1074                         av[ 6] = x+w*thisw;av[ 7] = y+h;av[ 8] = 10;
1075                         av[ 9] = x  ;av[10] = y+h;av[11] = 10;
1076                         ac += 16;
1077                         at += 8;
1078                         av += 12;
1079                         batchcount++;
1080                         if (batchcount >= QUADELEMENTS_MAXQUADS)
1081                         {
1082                                 GL_LockArrays(0, batchcount * 4);
1083                                 R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, NULL, quadelements, 0, 0);
1084                                 GL_LockArrays(0, 0);
1085                                 batchcount = 0;
1086                                 ac = color4f;
1087                                 at = texcoord2f;
1088                                 av = vertex3f;
1089                         }
1090                         x += thisw * w;
1091                 }
1092         }
1093         if (batchcount > 0)
1094         {
1095                 GL_LockArrays(0, batchcount * 4);
1096                 R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, NULL, quadelements, 0, 0);
1097                 GL_LockArrays(0, 0);
1098         }
1099
1100         if (outcolor)
1101                 *outcolor = colorindex;
1102
1103         // note: this relies on the proper text (not shadow) being drawn last
1104         return x;
1105 }
1106
1107 float DrawQ_String(float startx, float starty, const char *text, size_t maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes)
1108 {
1109         return DrawQ_String_Font(startx, starty, text, maxlen, w, h, basered, basegreen, baseblue, basealpha, flags, outcolor, ignorecolorcodes, &dp_fonts[0]);
1110 }
1111
1112 float DrawQ_TextWidth_Font_UntilWidth(const char *text, size_t *maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxWidth)
1113 {
1114         return DrawQ_TextWidth_Font_UntilWidth_TrackColors(text, maxlen, NULL, ignorecolorcodes, fnt, maxWidth);
1115 }
1116
1117 float DrawQ_TextWidth_Font(const char *text, size_t maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt)
1118 {
1119         return DrawQ_TextWidth_Font_UntilWidth(text, &maxlen, ignorecolorcodes, fnt, 1000000000);
1120 }
1121
1122 #if 0
1123 // not used
1124 static int DrawQ_BuildColoredText(char *output2c, size_t maxoutchars, const char *text, int maxreadchars, qboolean ignorecolorcodes, int *outcolor)
1125 {
1126         int color, numchars = 0;
1127         char *outputend2c = output2c + maxoutchars - 2;
1128         if (!outcolor || *outcolor == -1)
1129                 color = STRING_COLOR_DEFAULT;
1130         else
1131                 color = *outcolor;
1132         if (!maxreadchars)
1133                 maxreadchars = 1<<30;
1134         textend = text + maxreadchars;
1135         while (text != textend && *text)
1136         {
1137                 if (*text == STRING_COLOR_TAG && !ignorecolorcodes && text + 1 != textend)
1138                 {
1139                         if (text[1] == STRING_COLOR_TAG)
1140                                 text++;
1141                         else if (text[1] >= '0' && text[1] <= '9')
1142                         {
1143                                 color = text[1] - '0';
1144                                 text += 2;
1145                                 continue;
1146                         }
1147                 }
1148                 if (output2c >= outputend2c)
1149                         break;
1150                 *output2c++ = *text++;
1151                 *output2c++ = color;
1152                 numchars++;
1153         }
1154         output2c[0] = output2c[1] = 0;
1155         if (outcolor)
1156                 *outcolor = color;
1157         return numchars;
1158 }
1159 #endif
1160
1161 void DrawQ_SuperPic(float x, float y, cachepic_t *pic, float width, float height, float s1, float t1, float r1, float g1, float b1, float a1, float s2, float t2, float r2, float g2, float b2, float a2, float s3, float t3, float r3, float g3, float b3, float a3, float s4, float t4, float r4, float g4, float b4, float a4, int flags)
1162 {
1163         float floats[36];
1164
1165         _DrawQ_ProcessDrawFlag(flags);
1166
1167         R_Mesh_VertexPointer(floats, 0, 0);
1168         R_Mesh_ColorPointer(floats + 20, 0, 0);
1169         R_Mesh_ResetTextureState();
1170         R_SetupGenericShader(pic != NULL);
1171         if (pic)
1172         {
1173                 if (width == 0)
1174                         width = pic->width;
1175                 if (height == 0)
1176                         height = pic->height;
1177                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
1178                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
1179                 floats[12] = s1;floats[13] = t1;
1180                 floats[14] = s2;floats[15] = t2;
1181                 floats[16] = s4;floats[17] = t4;
1182                 floats[18] = s3;floats[19] = t3;
1183         }
1184
1185         floats[2] = floats[5] = floats[8] = floats[11] = 0;
1186         floats[0] = floats[9] = x;
1187         floats[1] = floats[4] = y;
1188         floats[3] = floats[6] = x + width;
1189         floats[7] = floats[10] = y + height;
1190         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
1191         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
1192         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
1193         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
1194
1195         R_Mesh_Draw(0, 4, 0, 2, NULL, polygonelements, 0, 0);
1196 }
1197
1198 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
1199 {
1200         _DrawQ_ProcessDrawFlag(flags);
1201
1202         R_Mesh_VertexPointer(mesh->data_vertex3f, 0, 0);
1203         R_Mesh_ColorPointer(mesh->data_color4f, 0, 0);
1204         R_Mesh_ResetTextureState();
1205         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
1206         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f, 0, 0);
1207         R_SetupGenericShader(mesh->texture != NULL);
1208
1209         GL_LockArrays(0, mesh->num_vertices);
1210         R_Mesh_Draw(0, mesh->num_vertices, 0, mesh->num_triangles, NULL, mesh->data_element3s, 0, 0);
1211         GL_LockArrays(0, 0);
1212 }
1213
1214 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
1215 {
1216         int num;
1217
1218         _DrawQ_ProcessDrawFlag(flags);
1219
1220         GL_Color(1,1,1,1);
1221         CHECKGLERROR
1222         qglBegin(GL_LINE_LOOP);
1223         for (num = 0;num < mesh->num_vertices;num++)
1224         {
1225                 if (mesh->data_color4f)
1226                         GL_Color(mesh->data_color4f[num*4+0], mesh->data_color4f[num*4+1], mesh->data_color4f[num*4+2], mesh->data_color4f[num*4+3]);
1227                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
1228         }
1229         qglEnd();
1230         CHECKGLERROR
1231 }
1232
1233 //[515]: this is old, delete
1234 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
1235 {
1236         _DrawQ_ProcessDrawFlag(flags);
1237
1238         R_SetupGenericShader(false);
1239
1240         CHECKGLERROR
1241         qglLineWidth(width);CHECKGLERROR
1242
1243         GL_Color(r,g,b,alpha);
1244         CHECKGLERROR
1245         qglBegin(GL_LINES);
1246         qglVertex2f(x1, y1);
1247         qglVertex2f(x2, y2);
1248         qglEnd();
1249         CHECKGLERROR
1250 }
1251
1252 void DrawQ_SetClipArea(float x, float y, float width, float height)
1253 {
1254         _DrawQ_Setup();
1255
1256         // We have to convert the con coords into real coords
1257         // OGL uses top to bottom
1258         GL_Scissor((int)(x * ((float)vid.width / vid_conwidth.integer)), (int)(y * ((float) vid.height / vid_conheight.integer)), (int)(width * ((float)vid.width / vid_conwidth.integer)), (int)(height * ((float)vid.height / vid_conheight.integer)));
1259
1260         GL_ScissorTest(true);
1261 }
1262
1263 void DrawQ_ResetClipArea(void)
1264 {
1265         _DrawQ_Setup();
1266         GL_ScissorTest(false);
1267 }
1268
1269 void DrawQ_Finish(void)
1270 {
1271         r_refdef.draw2dstage = false;
1272 }
1273
1274 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
1275 void R_DrawGamma(void)
1276 {
1277         float c[4];
1278         if (!vid_usinghwgamma && !(r_glsl.integer && v_glslgamma.integer))
1279         {
1280                 // all the blends ignore depth
1281                 R_Mesh_VertexPointer(blendvertex3f, 0, 0);
1282                 R_Mesh_ColorPointer(NULL, 0, 0);
1283                 R_Mesh_ResetTextureState();
1284                 R_SetupGenericShader(false);
1285                 GL_DepthMask(true);
1286                 GL_DepthRange(0, 1);
1287                 GL_PolygonOffset(0, 0);
1288                 GL_DepthTest(false);
1289                 if (v_color_enable.integer)
1290                 {
1291                         c[0] = v_color_white_r.value;
1292                         c[1] = v_color_white_g.value;
1293                         c[2] = v_color_white_b.value;
1294                 }
1295                 else
1296                         c[0] = c[1] = c[2] = v_contrast.value;
1297                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
1298                 {
1299                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
1300                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
1301                         {
1302                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
1303                                 R_Mesh_Draw(0, 3, 0, 1, NULL, polygonelements, 0, 0);
1304                                 VectorScale(c, 0.5, c);
1305                         }
1306                 }
1307                 if (v_color_enable.integer)
1308                 {
1309                         c[0] = v_color_black_r.value;
1310                         c[1] = v_color_black_g.value;
1311                         c[2] = v_color_black_b.value;
1312                 }
1313                 else
1314                         c[0] = c[1] = c[2] = v_brightness.value;
1315                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
1316                 {
1317                         GL_BlendFunc(GL_ONE, GL_ONE);
1318                         GL_Color(c[0], c[1], c[2], 1);
1319                         R_Mesh_Draw(0, 3, 0, 1, NULL, polygonelements, 0, 0);
1320                 }
1321         }
1322 }
1323