removed the USETEXMATRIX define (now always on), reduced varray_texcoord3f to only...
[divverent/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
27 cvar_t r_textshadow = {0, "r_textshadow", "0" "draws a shadow on all text to improve readability"};
28
29 static rtexture_t *char_texture;
30 cachepic_t *r_crosshairs[NUMCROSSHAIRS+1];
31
32 //=============================================================================
33 /* Support Routines */
34
35 #define FONT_FILESIZE 13468
36 #define MAX_CACHED_PICS 1024
37 #define CACHEPICHASHSIZE 256
38 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
39 static cachepic_t cachepics[MAX_CACHED_PICS];
40 static int numcachepics;
41
42 static rtexturepool_t *drawtexturepool;
43
44 static unsigned char concharimage[FONT_FILESIZE] =
45 {
46 #include "lhfont.h"
47 };
48
49 static rtexture_t *draw_generateconchars(void)
50 {
51         int i;
52         unsigned char buffer[65536][4], *data = NULL;
53         double random;
54
55         data = LoadTGA (concharimage, FONT_FILESIZE, 256, 256);
56 // Gold numbers
57         for (i = 0;i < 8192;i++)
58         {
59                 random = lhrandom (0.0,1.0);
60                 buffer[i][0] = 83 + (unsigned char)(random * 64);
61                 buffer[i][1] = 71 + (unsigned char)(random * 32);
62                 buffer[i][2] = 23 + (unsigned char)(random * 16);
63                 buffer[i][3] = data[i*4+0];
64         }
65 // White chars
66         for (i = 8192;i < 32768;i++)
67         {
68                 random = lhrandom (0.0,1.0);
69                 buffer[i][0] = 95 + (unsigned char)(random * 64);
70                 buffer[i][1] = 95 + (unsigned char)(random * 64);
71                 buffer[i][2] = 95 + (unsigned char)(random * 64);
72                 buffer[i][3] = data[i*4+0];
73         }
74 // Gold numbers
75         for (i = 32768;i < 40960;i++)
76         {
77                 random = lhrandom (0.0,1.0);
78                 buffer[i][0] = 83 + (unsigned char)(random * 64);
79                 buffer[i][1] = 71 + (unsigned char)(random * 32);
80                 buffer[i][2] = 23 + (unsigned char)(random * 16);
81                 buffer[i][3] = data[i*4+0];
82         }
83 // Red chars
84         for (i = 40960;i < 65536;i++)
85         {
86                 random = lhrandom (0.0,1.0);
87                 buffer[i][0] = 96 + (unsigned char)(random * 64);
88                 buffer[i][1] = 43 + (unsigned char)(random * 32);
89                 buffer[i][2] = 27 + (unsigned char)(random * 32);
90                 buffer[i][3] = data[i*4+0];
91         }
92
93 #if 0
94         Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
95 #endif
96
97         Mem_Free(data);
98         return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
99 }
100
101 static char *pointerimage =
102         "333333332......."
103         "26777761........"
104         "2655541........."
105         "265541.........."
106         "2654561........."
107         "26414561........"
108         "251.14561......."
109         "21...14561......"
110         "1.....141......."
111         ".......1........"
112         "................"
113         "................"
114         "................"
115         "................"
116         "................"
117         "................"
118 ;
119
120 static rtexture_t *draw_generatemousepointer(void)
121 {
122         int i;
123         unsigned char buffer[256][4];
124         for (i = 0;i < 256;i++)
125         {
126                 if (pointerimage[i] == '.')
127                 {
128                         buffer[i][0] = 0;
129                         buffer[i][1] = 0;
130                         buffer[i][2] = 0;
131                         buffer[i][3] = 0;
132                 }
133                 else
134                 {
135                         buffer[i][0] = (pointerimage[i] - '0') * 16;
136                         buffer[i][1] = (pointerimage[i] - '0') * 16;
137                         buffer[i][2] = (pointerimage[i] - '0') * 16;
138                         buffer[i][3] = 255;
139                 }
140         }
141         return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
142 }
143
144 static char *crosshairtexdata[NUMCROSSHAIRS] =
145 {
146         "................"
147         "................"
148         "................"
149         "...33......33..."
150         "...355....553..."
151         "....577..775...."
152         ".....77..77....."
153         "................"
154         "................"
155         ".....77..77....."
156         "....577..775...."
157         "...355....553..."
158         "...33......33..."
159         "................"
160         "................"
161         "................"
162         ,
163         "................"
164         "................"
165         "................"
166         "...3........3..."
167         "....5......5...."
168         ".....7....7....."
169         "......7..7......"
170         "................"
171         "................"
172         "......7..7......"
173         ".....7....7....."
174         "....5......5...."
175         "...3........3..."
176         "................"
177         "................"
178         "................"
179         ,
180         "................"
181         ".......77......."
182         ".......77......."
183         "................"
184         "................"
185         ".......44......."
186         ".......44......."
187         ".77..44..44..77."
188         ".77..44..44..77."
189         ".......44......."
190         ".......44......."
191         "................"
192         "................"
193         ".......77......."
194         ".......77......."
195         "................"
196         ,
197         "................"
198         "................"
199         "................"
200         "................"
201         "................"
202         "................"
203         "................"
204         "................"
205         "........7777777."
206         "........752....."
207         "........72......"
208         "........7......."
209         "........7......."
210         "........7......."
211         "........7......."
212         "................"
213         ,
214         "................"
215         "................"
216         "................"
217         "................"
218         "................"
219         "........7......."
220         "................"
221         "........4......."
222         ".....7.4.4.7...."
223         "........4......."
224         "................"
225         "........7......."
226         "................"
227         "................"
228         "................"
229         "................"
230         ,
231         "................"
232         "................"
233         "................"
234         "................"
235         "................"
236         "................"
237         "................"
238         ".......55......."
239         ".......55......."
240         "................"
241         "................"
242         "................"
243         "................"
244         "................"
245         "................"
246         "................"
247 };
248
249 static rtexture_t *draw_generatecrosshair(int num)
250 {
251         int i;
252         char *in;
253         unsigned char data[16*16][4];
254         in = crosshairtexdata[num];
255         for (i = 0;i < 16*16;i++)
256         {
257                 if (in[i] == '.')
258                 {
259                         data[i][0] = 255;
260                         data[i][1] = 255;
261                         data[i][2] = 255;
262                         data[i][3] = 0;
263                 }
264                 else
265                 {
266                         data[i][0] = 255;
267                         data[i][1] = 255;
268                         data[i][2] = 255;
269                         data[i][3] = (unsigned char) ((int) (in[i] - '0') * 255 / 7);
270                 }
271         }
272         return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
273 }
274
275 static rtexture_t *draw_generateditherpattern(void)
276 {
277 #if 1
278         int x, y;
279         unsigned char data[8*8*4];
280         for (y = 0;y < 8;y++)
281         {
282                 for (x = 0;x < 8;x++)
283                 {
284                         data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
285                         data[(y*8+x)*4+3] = 255;
286                 }
287         }
288         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
289 #else
290         unsigned char data[16];
291         memset(data, 255, sizeof(data));
292         data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
293         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
294 #endif
295 }
296
297 /*
298 ================
299 Draw_CachePic
300 ================
301 */
302 // FIXME: move this to client somehow
303 cachepic_t      *Draw_CachePic (const char *path, qboolean persistent)
304 {
305         int crc, hashkey;
306         cachepic_t *pic;
307         qpic_t *p;
308         int flags;
309
310         if (!strncmp(CLVIDEOPREFIX, path, sizeof(CLVIDEOPREFIX) - 1))
311         {
312                 clvideo_t *video;
313
314                 video = CL_GetVideoByName(path);
315                 if( video )
316                         return &video->cpif;
317         }
318
319         crc = CRC_Block((unsigned char *)path, strlen(path));
320         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
321         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
322                 if (!strcmp (path, pic->name))
323                         return pic;
324
325         if (numcachepics == MAX_CACHED_PICS)
326         {
327                 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
328                 // FIXME: support NULL in callers?
329                 return cachepics; // return the first one
330         }
331         pic = cachepics + (numcachepics++);
332         strlcpy (pic->name, path, sizeof(pic->name));
333         // link into list
334         pic->chain = cachepichash[hashkey];
335         cachepichash[hashkey] = pic;
336
337         flags = TEXF_ALPHA;
338         if (persistent)
339                 flags |= TEXF_PRECACHE;
340         if (!strcmp(path, "gfx/colorcontrol/ditherpattern"))
341                 flags |= TEXF_CLAMP;
342
343         // load the pic from disk
344         pic->tex = loadtextureimage(drawtexturepool, path, 0, 0, false, flags);
345         if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
346         {
347                 // compatibility with older versions
348                 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
349                 // failed to find gfx/whatever.tga or similar, try the wad
350                 if (pic->tex == NULL && (p = (qpic_t *)W_GetLumpName (path + 4)))
351                 {
352                         if (!strcmp(path, "gfx/conchars"))
353                         {
354                                 // conchars is a raw image and with color 0 as transparent instead of 255
355                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, (unsigned char *)p, TEXTYPE_PALETTE, flags, palette_font);
356                         }
357                         else
358                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, p->width, p->height, p->data, TEXTYPE_PALETTE, flags, palette_transparent);
359                 }
360         }
361
362         if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
363                 pic->tex = draw_generateconchars();
364         if (pic->tex == NULL && !strcmp(path, "ui/mousepointer"))
365                 pic->tex = draw_generatemousepointer();
366         if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001"))
367                 pic->tex = draw_generatemousepointer();
368         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1"))
369                 pic->tex = draw_generatecrosshair(0);
370         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2"))
371                 pic->tex = draw_generatecrosshair(1);
372         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3"))
373                 pic->tex = draw_generatecrosshair(2);
374         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4"))
375                 pic->tex = draw_generatecrosshair(3);
376         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5"))
377                 pic->tex = draw_generatecrosshair(4);
378         if (pic->tex == NULL && !strcmp(path, "gfx/crosshair6"))
379                 pic->tex = draw_generatecrosshair(5);
380         if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern"))
381                 pic->tex = draw_generateditherpattern();
382         if (pic->tex == NULL)
383         {
384                 Con_Printf("Draw_CachePic: failed to load %s\n", path);
385                 pic->tex = r_texture_notexture;
386         }
387
388         pic->width = R_TextureWidth(pic->tex);
389         pic->height = R_TextureHeight(pic->tex);
390         return pic;
391 }
392
393 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels)
394 {
395         int crc, hashkey;
396         cachepic_t *pic;
397
398         crc = CRC_Block((unsigned char *)picname, strlen(picname));
399         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
400         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
401                 if (!strcmp (picname, pic->name))
402                         break;
403
404         if (pic)
405         {
406                 if (pic->tex && pic->width == width && pic->height == height)
407                 {
408                         R_UpdateTexture(pic->tex, pixels);
409                         return pic;
410                 }
411         }
412         else
413         {
414                 if (pic == NULL)
415                 {
416                         if (numcachepics == MAX_CACHED_PICS)
417                         {
418                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
419                                 // FIXME: support NULL in callers?
420                                 return cachepics; // return the first one
421                         }
422                         pic = cachepics + (numcachepics++);
423                         strcpy (pic->name, picname);
424                         // link into list
425                         pic->chain = cachepichash[hashkey];
426                         cachepichash[hashkey] = pic;
427                 }
428         }
429
430         pic->width = width;
431         pic->height = height;
432         if (pic->tex)
433                 R_FreeTexture(pic->tex);
434         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
435         return pic;
436 }
437
438 void Draw_FreePic(const char *picname)
439 {
440         int crc;
441         int hashkey;
442         cachepic_t *pic;
443         // this doesn't really free the pic, but does free it's texture
444         crc = CRC_Block((unsigned char *)picname, strlen(picname));
445         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
446         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
447         {
448                 if (!strcmp (picname, pic->name) && pic->tex)
449                 {
450                         R_FreeTexture(pic->tex);
451                         pic->width = 0;
452                         pic->height = 0;
453                         return;
454                 }
455         }
456 }
457
458 /*
459 ===============
460 Draw_Init
461 ===============
462 */
463 static void gl_draw_start(void)
464 {
465         int i;
466         drawtexturepool = R_AllocTexturePool();
467
468         numcachepics = 0;
469         memset(cachepichash, 0, sizeof(cachepichash));
470
471         char_texture = Draw_CachePic("gfx/conchars", true)->tex;
472         for (i = 1;i <= NUMCROSSHAIRS;i++)
473                 r_crosshairs[i] = Draw_CachePic(va("gfx/crosshair%i", i), false);
474 }
475
476 static void gl_draw_shutdown(void)
477 {
478         R_FreeTexturePool(&drawtexturepool);
479
480         numcachepics = 0;
481         memset(cachepichash, 0, sizeof(cachepichash));
482 }
483
484 static void gl_draw_newmap(void)
485 {
486 }
487
488 void GL_Draw_Init (void)
489 {
490         Cvar_RegisterVariable(&r_textshadow);
491         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
492 }
493
494 void DrawQ_Begin(void)
495 {
496         r_view_width = bound(0, r_refdef.width, vid.width);
497         r_view_height = bound(0, r_refdef.height, vid.height);
498         r_view_depth = 1;
499         r_view_x = bound(0, r_refdef.x, vid.width - r_refdef.width);
500         r_view_y = bound(0, r_refdef.y, vid.height - r_refdef.height);
501         r_view_z = 0;
502         r_view_matrix = r_refdef.viewentitymatrix;
503         GL_ColorMask(r_refdef.colormask[0], r_refdef.colormask[1], r_refdef.colormask[2], 1);
504
505         qglViewport(r_view_x, vid.height - (r_view_y + r_view_height), r_view_width, r_view_height);
506         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
507         qglDepthFunc(GL_LEQUAL);
508         R_Mesh_Matrix(&identitymatrix);
509
510         GL_DepthMask(true);
511         GL_DepthTest(false);
512         GL_Color(1,1,1,1);
513
514         r_refdef.draw2dstage = true;
515 }
516
517 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
518 {
519         if (!r_refdef.draw2dstage)
520         {
521                 Con_Printf("DrawQ_Pic: not in 2d rendering stage!\n");
522                 return;
523         }
524         DrawQ_SuperPic(x,y,pic,width,height,0,0,red,green,blue,alpha,1,0,red,green,blue,alpha,0,1,red,green,blue,alpha,1,1,red,green,blue,alpha,flags);
525 }
526
527 void DrawQ_String_Real(float x, float y, const char *string, int maxlen, float w, float h, float red, float green, float blue, float alpha, int flags)
528 {
529         int i, num;
530         float *av, *at;
531         int batchcount;
532         rmeshstate_t m;
533         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
534         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
535
536         if (!r_refdef.draw2dstage)
537         {
538                 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
539                 return;
540         }
541
542         if (!r_render.integer)
543                 return;
544
545         if (alpha < (1.0f / 255.0f))
546                 return;
547
548         if(flags == DRAWFLAG_ADDITIVE)
549                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
550         else if(flags == DRAWFLAG_MODULATE)
551                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
552         else if(flags == DRAWFLAG_2XMODULATE)
553                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
554         else
555                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
556
557         GL_Color(red, green, blue, alpha);
558
559         memset(&m, 0, sizeof(m));
560         m.pointer_vertex = vertex3f;
561         m.pointer_color = NULL;
562         m.pointer_texcoord[0] = texcoord2f;
563         m.tex[0] = R_GetTexture(char_texture);
564         R_Mesh_State(&m);
565
566         at = texcoord2f;
567         av = vertex3f;
568         batchcount = 0;
569
570         if (maxlen < 1)
571                 maxlen = 9999;
572         for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
573         {
574                 float s, t, u, v;
575                 if (num == ' ')
576                         continue;
577                 s = (num & 15)*0.0625f + (0.5f / 256.0f);
578                 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
579                 u = 0.0625f - (1.0f / 256.0f);
580                 v = 0.0625f - (1.0f / 256.0f);
581                 at[ 0] = s  ;at[ 1] = t  ;
582                 at[ 2] = s+u;at[ 3] = t  ;
583                 at[ 4] = s+u;at[ 5] = t+v;
584                 at[ 6] = s  ;at[ 7] = t+v;
585                 av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
586                 av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
587                 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
588                 av[ 9] = x  ;av[10] = y+h;av[11] = 10;
589                 at += 8;
590                 av += 12;
591                 batchcount++;
592                 if (batchcount >= QUADELEMENTS_MAXQUADS)
593                 {
594                         GL_LockArrays(0, batchcount * 4);
595                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
596                         GL_LockArrays(0, 0);
597                         batchcount = 0;
598                         at = texcoord2f;
599                         av = vertex3f;
600                 }
601         }
602         if (batchcount > 0)
603         {
604                 GL_LockArrays(0, batchcount * 4);
605                 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
606                 GL_LockArrays(0, 0);
607         }
608 }
609
610 void DrawQ_String(float x, float y, const char *string, int maxlen, float scalex, float scaley, float red, float green, float blue, float alpha, int flags)
611 {
612         if (!r_refdef.draw2dstage)
613         {
614                 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
615                 return;
616         }
617
618         if (r_textshadow.integer)
619                 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
620
621         DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
622 }
623
624 // color tag printing
625 static vec4_t string_colors[] =
626 {
627         // Quake3 colors
628         // LordHavoc: why on earth is cyan before magenta in Quake3?
629         // LordHavoc: note: Doom3 uses white for [0] and [7]
630         {0.0, 0.0, 0.0, 1.0}, // black
631         {1.0, 0.0, 0.0, 1.0}, // red
632         {0.0, 1.0, 0.0, 1.0}, // green
633         {1.0, 1.0, 0.0, 1.0}, // yellow
634         {0.0, 0.0, 1.0, 1.0}, // blue
635         {0.0, 1.0, 1.0, 1.0}, // cyan
636         {1.0, 0.0, 1.0, 1.0}, // magenta
637         {1.0, 1.0, 1.0, 1.0}, // white
638         // [515]'s BX_COLOREDTEXT extension
639         {1.0, 1.0, 1.0, 0.5}, // half transparent
640         {0.5, 0.5, 0.5, 1.0}  // half brightness
641         // Black's color table
642         //{1.0, 1.0, 1.0, 1.0},
643         //{1.0, 0.0, 0.0, 1.0},
644         //{0.0, 1.0, 0.0, 1.0},
645         //{0.0, 0.0, 1.0, 1.0},
646         //{1.0, 1.0, 0.0, 1.0},
647         //{0.0, 1.0, 1.0, 1.0},
648         //{1.0, 0.0, 1.0, 1.0},
649         //{0.1, 0.1, 0.1, 1.0}
650 };
651
652 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
653
654 // color is read and changed in the end
655 void DrawQ_ColoredString( float x, float y, const char *text, int maxlen, float scalex, float scaley, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor )
656 {
657         vec_t *color;
658         int len;
659         int colorindex;
660         const char *start, *current;
661
662         if (!r_refdef.draw2dstage)
663         {
664                 Con_Printf("DrawQ_ColoredString: not in 2d rendering stage!\n");
665                 return;
666         }
667         if( !outcolor || *outcolor == -1 ) {
668                 colorindex = STRING_COLOR_DEFAULT;
669         } else {
670                 colorindex = *outcolor;
671         }
672         color = string_colors[colorindex];
673
674         if( maxlen < 1)
675                 len = (int)strlen( text );
676         else
677                 len = min( maxlen, (int) strlen( text ) );
678
679         start = current = text;
680         while( len > 0 ) {
681                 // check for color control char
682                 if( *current == STRING_COLOR_TAG ) {
683                         // get next char
684                         current++;
685                         len--;
686                         if( len == 0 ) {
687                                 break;
688                         }
689                         // display the tag char?
690                         if( *current == STRING_COLOR_TAG ) {
691                                 // only display one of the two
692                                 start = current;
693                                 // get the next char
694                                 current++;
695                                 len--;
696                         } else if( '0' <= *current && *current <= '9' ) {
697                                 colorindex = 0;
698                                 do {
699                                         colorindex = colorindex * 10 + (*current - '0');
700                                         // only read as long as it makes a valid index
701                                         if( colorindex >= (int)STRING_COLORS_COUNT ) {
702                                                 // undo the last operation
703                                                 colorindex /= 10;
704                                                 break;
705                                         }
706                                         current++;
707                                         len--;
708                                 } while( len > 0 && '0' <= *current && *current <= '9' );
709                                 // set the color
710                                 color = string_colors[colorindex];
711                                 // we jump over the color tag
712                                 start = current;
713                         }
714                 }
715                 // go on and read normal text in until the next control char
716                 while( len > 0 && *current != STRING_COLOR_TAG ) {
717                         current++;
718                         len--;
719                 }
720                 // display the text
721                 if( start != current ) {
722                         // draw the string
723                         DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
724                         // update x to be at the new start position
725                         x += (current - start) * scalex;
726                         // set start accordingly
727                         start = current;
728                 }
729         }
730
731         // return the last colorindex
732         if( outcolor ) {
733                 *outcolor = colorindex;
734         }
735 }
736
737 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)
738 {
739         rmeshstate_t m;
740         float floats[36];
741
742         if (!r_refdef.draw2dstage)
743         {
744                 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
745                 return;
746         }
747
748         if (!r_render.integer)
749                 return;
750
751         if(flags == DRAWFLAG_ADDITIVE)
752                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
753         else if(flags == DRAWFLAG_MODULATE)
754                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
755         else if(flags == DRAWFLAG_2XMODULATE)
756                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
757         else
758                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
759
760         memset(&m, 0, sizeof(m));
761         m.pointer_vertex = floats;
762         m.pointer_color = floats + 20;
763         if (pic)
764         {
765                 if (width == 0)
766                         width = pic->width;
767                 if (height == 0)
768                         height = pic->height;
769                 m.tex[0] = R_GetTexture(pic->tex);
770                 m.pointer_texcoord[0] = floats + 12;
771                 floats[12] = s1;floats[13] = t1;
772                 floats[14] = s2;floats[15] = t2;
773                 floats[16] = s4;floats[17] = t4;
774                 floats[18] = s3;floats[19] = t3;
775         }
776         R_Mesh_State(&m);
777
778         floats[2] = floats[5] = floats[8] = floats[11] = 0;
779         floats[0] = floats[9] = x;
780         floats[1] = floats[4] = y;
781         floats[3] = floats[6] = x + width;
782         floats[7] = floats[10] = y + height;
783         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
784         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
785         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
786         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
787
788         R_Mesh_Draw(0, 4, 2, polygonelements);
789 }
790
791 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
792 {
793         rmeshstate_t m;
794
795         if (!r_refdef.draw2dstage)
796         {
797                 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
798                 return;
799         }
800
801         if (!r_render.integer)
802                 return;
803
804         if(flags == DRAWFLAG_ADDITIVE)
805                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
806         else if(flags == DRAWFLAG_MODULATE)
807                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
808         else if(flags == DRAWFLAG_2XMODULATE)
809                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
810         else
811                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
812
813         memset(&m, 0, sizeof(m));
814         m.pointer_vertex = mesh->data_vertex3f;
815         m.pointer_color = mesh->data_color4f;
816         m.tex[0] = R_GetTexture(mesh->texture);
817         if (m.tex[0])
818                 m.pointer_texcoord[0] = mesh->data_texcoord2f;
819         R_Mesh_State(&m);
820
821         GL_LockArrays(0, mesh->num_vertices);
822         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
823         GL_LockArrays(0, 0);
824 }
825
826 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
827 {
828         int num;
829
830         if (!r_refdef.draw2dstage)
831         {
832                 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
833                 return;
834         }
835
836         if (!r_render.integer)
837                 return;
838
839         if(flags == DRAWFLAG_ADDITIVE)
840                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
841         else if(flags == DRAWFLAG_MODULATE)
842                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
843         else if(flags == DRAWFLAG_2XMODULATE)
844                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
845         else
846                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
847
848         GL_Color(1,1,1,1);
849         qglBegin(GL_LINE_LOOP);
850         for (num = 0;num < mesh->num_vertices;num++)
851         {
852                 if (mesh->data_color4f)
853                         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]);
854                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
855         }
856         qglEnd();
857 }
858
859 //LordHavoc: FIXME: this is nasty!
860 void DrawQ_LineWidth (float width)
861 {
862         if (!r_refdef.draw2dstage)
863         {
864                 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
865                 return;
866         }
867         qglLineWidth(width);
868 }
869
870 //[515]: this is old, delete
871 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
872 {
873         if (!r_refdef.draw2dstage)
874         {
875                 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
876                 return;
877         }
878
879         if (!r_render.integer)
880                 return;
881
882         if(width > 0)
883                 DrawQ_LineWidth(width);
884
885         if(flags == DRAWFLAG_ADDITIVE)
886                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
887         else if(flags == DRAWFLAG_MODULATE)
888                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
889         else if(flags == DRAWFLAG_2XMODULATE)
890                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
891         else
892                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
893
894         GL_Color(r,g,b,alpha);
895         qglBegin(GL_LINES);
896         qglVertex2f(x1, y1);
897         qglVertex2f(x2, y2);
898         qglEnd();
899 }
900
901 void DrawQ_SetClipArea(float x, float y, float width, float height)
902 {
903         if (!r_refdef.draw2dstage)
904         {
905                 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
906                 return;
907         }
908
909         // We have to convert the con coords into real coords
910         // OGL uses top to bottom
911         GL_Scissor(x * ((float)vid.width / vid_conwidth.integer), y * ((float) vid.height / vid_conheight.integer), width * ((float)vid.width / vid_conwidth.integer), height * ((float)vid.height / vid_conheight.integer));
912
913         GL_ScissorTest(true);
914 }
915
916 void DrawQ_ResetClipArea(void)
917 {
918         if (!r_refdef.draw2dstage)
919         {
920                 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
921                 return;
922         }
923         GL_ScissorTest(false);
924 }
925
926 void DrawQ_Finish(void)
927 {
928         if (!r_refdef.draw2dstage)
929         {
930                 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
931                 return;
932         }
933
934         r_refdef.draw2dstage = false;
935 }
936
937 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
938 void R_DrawGamma(void)
939 {
940         rmeshstate_t m;
941         float c[4];
942         if (!vid_usinghwgamma)
943         {
944                 // all the blends ignore depth
945                 memset(&m, 0, sizeof(m));
946                 m.pointer_vertex = blendvertex3f;
947                 R_Mesh_State(&m);
948                 GL_DepthMask(true);
949                 GL_DepthTest(false);
950                 if (v_color_enable.integer)
951                 {
952                         c[0] = v_color_white_r.value;
953                         c[1] = v_color_white_g.value;
954                         c[2] = v_color_white_b.value;
955                 }
956                 else
957                         c[0] = c[1] = c[2] = v_contrast.value;
958                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
959                 {
960                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
961                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
962                         {
963                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
964                                 R_Mesh_Draw(0, 3, 1, polygonelements);
965                                 VectorScale(c, 0.5, c);
966                         }
967                 }
968                 if (v_color_enable.integer)
969                 {
970                         c[0] = v_color_black_r.value;
971                         c[1] = v_color_black_g.value;
972                         c[2] = v_color_black_b.value;
973                 }
974                 else
975                         c[0] = c[1] = c[2] = v_brightness.value;
976                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
977                 {
978                         GL_BlendFunc(GL_ONE, GL_ONE);
979                         GL_Color(c[0], c[1], c[2], 1);
980                         R_Mesh_Draw(0, 3, 1, polygonelements);
981                 }
982         }
983 }
984