moved SCR_UpdateScreen and SCR_DrawScreen code to cl_screen.c and rearranged them...
[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
534         if (!r_refdef.draw2dstage)
535         {
536                 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
537                 return;
538         }
539
540         if (!r_render.integer)
541                 return;
542
543         if (alpha < (1.0f / 255.0f))
544                 return;
545
546         if(flags == DRAWFLAG_ADDITIVE)
547                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
548         else if(flags == DRAWFLAG_MODULATE)
549                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
550         else if(flags == DRAWFLAG_2XMODULATE)
551                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
552         else
553                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
554
555         GL_Color(red, green, blue, alpha);
556
557         memset(&m, 0, sizeof(m));
558         m.pointer_vertex = varray_vertex3f;
559         m.pointer_color = NULL;
560         m.pointer_texcoord[0] = varray_texcoord2f[0];
561         m.tex[0] = R_GetTexture(char_texture);
562         R_Mesh_State(&m);
563
564         at = varray_texcoord2f[0];
565         av = varray_vertex3f;
566         batchcount = 0;
567
568         if (maxlen < 1)
569                 maxlen = 9999;
570         for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
571         {
572                 float s, t, u, v;
573                 if (num == ' ')
574                         continue;
575                 s = (num & 15)*0.0625f + (0.5f / 256.0f);
576                 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
577                 u = 0.0625f - (1.0f / 256.0f);
578                 v = 0.0625f - (1.0f / 256.0f);
579                 at[ 0] = s  ;at[ 1] = t  ;
580                 at[ 2] = s+u;at[ 3] = t  ;
581                 at[ 4] = s+u;at[ 5] = t+v;
582                 at[ 6] = s  ;at[ 7] = t+v;
583                 av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
584                 av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
585                 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
586                 av[ 9] = x  ;av[10] = y+h;av[11] = 10;
587                 at += 8;
588                 av += 12;
589                 batchcount++;
590                 if (batchcount >= QUADELEMENTS_MAXQUADS)
591                 {
592                         GL_LockArrays(0, batchcount * 4);
593                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
594                         GL_LockArrays(0, 0);
595                         batchcount = 0;
596                         at = varray_texcoord2f[0];
597                         av = varray_vertex3f;
598                 }
599         }
600         if (batchcount > 0)
601         {
602                 GL_LockArrays(0, batchcount * 4);
603                 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
604                 GL_LockArrays(0, 0);
605         }
606 }
607
608 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)
609 {
610         if (!r_refdef.draw2dstage)
611         {
612                 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
613                 return;
614         }
615
616         if (r_textshadow.integer)
617                 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
618
619         DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
620 }
621
622 // color tag printing
623 static vec4_t string_colors[] =
624 {
625         // Quake3 colors
626         // LordHavoc: why on earth is cyan before magenta in Quake3?
627         // LordHavoc: note: Doom3 uses white for [0] and [7]
628         {0.0, 0.0, 0.0, 1.0}, // black
629         {1.0, 0.0, 0.0, 1.0}, // red
630         {0.0, 1.0, 0.0, 1.0}, // green
631         {1.0, 1.0, 0.0, 1.0}, // yellow
632         {0.0, 0.0, 1.0, 1.0}, // blue
633         {0.0, 1.0, 1.0, 1.0}, // cyan
634         {1.0, 0.0, 1.0, 1.0}, // magenta
635         {1.0, 1.0, 1.0, 1.0}, // white
636         // [515]'s BX_COLOREDTEXT extension
637         {1.0, 1.0, 1.0, 0.5}, // half transparent
638         {0.5, 0.5, 0.5, 1.0}  // half brightness
639         // Black's color table
640         //{1.0, 1.0, 1.0, 1.0},
641         //{1.0, 0.0, 0.0, 1.0},
642         //{0.0, 1.0, 0.0, 1.0},
643         //{0.0, 0.0, 1.0, 1.0},
644         //{1.0, 1.0, 0.0, 1.0},
645         //{0.0, 1.0, 1.0, 1.0},
646         //{1.0, 0.0, 1.0, 1.0},
647         //{0.1, 0.1, 0.1, 1.0}
648 };
649
650 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
651
652 // color is read and changed in the end
653 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 )
654 {
655         vec_t *color;
656         int len;
657         int colorindex;
658         const char *start, *current;
659
660         if (!r_refdef.draw2dstage)
661         {
662                 Con_Printf("DrawQ_ColoredString: not in 2d rendering stage!\n");
663                 return;
664         }
665         if( !outcolor || *outcolor == -1 ) {
666                 colorindex = STRING_COLOR_DEFAULT;
667         } else {
668                 colorindex = *outcolor;
669         }
670         color = string_colors[colorindex];
671
672         if( maxlen < 1)
673                 len = (int)strlen( text );
674         else
675                 len = min( maxlen, (int) strlen( text ) );
676
677         start = current = text;
678         while( len > 0 ) {
679                 // check for color control char
680                 if( *current == STRING_COLOR_TAG ) {
681                         // get next char
682                         current++;
683                         len--;
684                         if( len == 0 ) {
685                                 break;
686                         }
687                         // display the tag char?
688                         if( *current == STRING_COLOR_TAG ) {
689                                 // only display one of the two
690                                 start = current;
691                                 // get the next char
692                                 current++;
693                                 len--;
694                         } else if( '0' <= *current && *current <= '9' ) {
695                                 colorindex = 0;
696                                 do {
697                                         colorindex = colorindex * 10 + (*current - '0');
698                                         // only read as long as it makes a valid index
699                                         if( colorindex >= (int)STRING_COLORS_COUNT ) {
700                                                 // undo the last operation
701                                                 colorindex /= 10;
702                                                 break;
703                                         }
704                                         current++;
705                                         len--;
706                                 } while( len > 0 && '0' <= *current && *current <= '9' );
707                                 // set the color
708                                 color = string_colors[colorindex];
709                                 // we jump over the color tag
710                                 start = current;
711                         }
712                 }
713                 // go on and read normal text in until the next control char
714                 while( len > 0 && *current != STRING_COLOR_TAG ) {
715                         current++;
716                         len--;
717                 }
718                 // display the text
719                 if( start != current ) {
720                         // draw the string
721                         DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
722                         // update x to be at the new start position
723                         x += (current - start) * scalex;
724                         // set start accordingly
725                         start = current;
726                 }
727         }
728
729         // return the last colorindex
730         if( outcolor ) {
731                 *outcolor = colorindex;
732         }
733 }
734
735 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)
736 {
737         rmeshstate_t m;
738         float floats[36];
739
740         if (!r_refdef.draw2dstage)
741         {
742                 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
743                 return;
744         }
745
746         if (!r_render.integer)
747                 return;
748
749         if(flags == DRAWFLAG_ADDITIVE)
750                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
751         else if(flags == DRAWFLAG_MODULATE)
752                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
753         else if(flags == DRAWFLAG_2XMODULATE)
754                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
755         else
756                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
757
758         memset(&m, 0, sizeof(m));
759         m.pointer_vertex = floats;
760         m.pointer_color = floats + 20;
761         if (pic)
762         {
763                 if (width == 0)
764                         width = pic->width;
765                 if (height == 0)
766                         height = pic->height;
767                 m.tex[0] = R_GetTexture(pic->tex);
768                 m.pointer_texcoord[0] = floats + 12;
769                 floats[12] = s1;floats[13] = t1;
770                 floats[14] = s2;floats[15] = t2;
771                 floats[16] = s4;floats[17] = t4;
772                 floats[18] = s3;floats[19] = t3;
773         }
774         R_Mesh_State(&m);
775
776         floats[2] = floats[5] = floats[8] = floats[11] = 0;
777         floats[0] = floats[9] = x;
778         floats[1] = floats[4] = y;
779         floats[3] = floats[6] = x + width;
780         floats[7] = floats[10] = y + height;
781         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
782         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
783         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
784         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
785
786         R_Mesh_Draw(0, 4, 2, polygonelements);
787 }
788
789 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
790 {
791         rmeshstate_t m;
792
793         if (!r_refdef.draw2dstage)
794         {
795                 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
796                 return;
797         }
798
799         if (!r_render.integer)
800                 return;
801
802         if(flags == DRAWFLAG_ADDITIVE)
803                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
804         else if(flags == DRAWFLAG_MODULATE)
805                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
806         else if(flags == DRAWFLAG_2XMODULATE)
807                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
808         else
809                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
810
811         memset(&m, 0, sizeof(m));
812         m.pointer_vertex = mesh->data_vertex3f;
813         m.pointer_color = mesh->data_color4f;
814         m.tex[0] = R_GetTexture(mesh->texture);
815         if (m.tex[0])
816                 m.pointer_texcoord[0] = mesh->data_texcoord2f;
817         R_Mesh_State(&m);
818
819         GL_LockArrays(0, mesh->num_vertices);
820         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
821         GL_LockArrays(0, 0);
822 }
823
824 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
825 {
826         int num;
827
828         if (!r_refdef.draw2dstage)
829         {
830                 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
831                 return;
832         }
833
834         if (!r_render.integer)
835                 return;
836
837         if(flags == DRAWFLAG_ADDITIVE)
838                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
839         else if(flags == DRAWFLAG_MODULATE)
840                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
841         else if(flags == DRAWFLAG_2XMODULATE)
842                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
843         else
844                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
845
846         GL_Color(1,1,1,1);
847         qglBegin(GL_LINE_LOOP);
848         for (num = 0;num < mesh->num_vertices;num++)
849         {
850                 if (mesh->data_color4f)
851                         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]);
852                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
853         }
854         qglEnd();
855 }
856
857 //LordHavoc: FIXME: this is nasty!
858 void DrawQ_LineWidth (float width)
859 {
860         if (!r_refdef.draw2dstage)
861         {
862                 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
863                 return;
864         }
865         qglLineWidth(width);
866 }
867
868 //[515]: this is old, delete
869 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
870 {
871         if (!r_refdef.draw2dstage)
872         {
873                 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
874                 return;
875         }
876
877         if (!r_render.integer)
878                 return;
879
880         if(width > 0)
881                 DrawQ_LineWidth(width);
882
883         if(flags == DRAWFLAG_ADDITIVE)
884                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
885         else if(flags == DRAWFLAG_MODULATE)
886                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
887         else if(flags == DRAWFLAG_2XMODULATE)
888                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
889         else
890                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
891
892         GL_Color(r,g,b,alpha);
893         qglBegin(GL_LINES);
894         qglVertex2f(x1, y1);
895         qglVertex2f(x2, y2);
896         qglEnd();
897 }
898
899 void DrawQ_SetClipArea(float x, float y, float width, float height)
900 {
901         if (!r_refdef.draw2dstage)
902         {
903                 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
904                 return;
905         }
906
907         // We have to convert the con coords into real coords
908         // OGL uses top to bottom
909         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));
910
911         GL_ScissorTest(true);
912 }
913
914 void DrawQ_ResetClipArea(void)
915 {
916         if (!r_refdef.draw2dstage)
917         {
918                 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
919                 return;
920         }
921         GL_ScissorTest(false);
922 }
923
924 void DrawQ_Finish(void)
925 {
926         if (!r_refdef.draw2dstage)
927         {
928                 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
929                 return;
930         }
931
932         r_refdef.draw2dstage = false;
933 }
934
935 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
936 void R_DrawGamma(void)
937 {
938         rmeshstate_t m;
939         float c[4];
940         if (!vid_usinghwgamma)
941         {
942                 // all the blends ignore depth
943                 memset(&m, 0, sizeof(m));
944                 m.pointer_vertex = blendvertex3f;
945                 R_Mesh_State(&m);
946                 GL_DepthMask(true);
947                 GL_DepthTest(false);
948                 if (v_color_enable.integer)
949                 {
950                         c[0] = v_color_white_r.value;
951                         c[1] = v_color_white_g.value;
952                         c[2] = v_color_white_b.value;
953                 }
954                 else
955                         c[0] = c[1] = c[2] = v_contrast.value;
956                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
957                 {
958                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
959                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
960                         {
961                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
962                                 R_Mesh_Draw(0, 3, 1, polygonelements);
963                                 VectorScale(c, 0.5, c);
964                         }
965                 }
966                 if (v_color_enable.integer)
967                 {
968                         c[0] = v_color_black_r.value;
969                         c[1] = v_color_black_g.value;
970                         c[2] = v_color_black_b.value;
971                 }
972                 else
973                         c[0] = c[1] = c[2] = v_brightness.value;
974                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
975                 {
976                         GL_BlendFunc(GL_ONE, GL_ONE);
977                         GL_Color(c[0], c[1], c[2], 1);
978                         R_Mesh_Draw(0, 3, 1, polygonelements);
979                 }
980         }
981 }
982