added GL_DepthRange function and MATERIALFLAG_SHORTDEPTHRANGE (now used by viewmodels...
[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 = {CVAR_SAVE, "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] = data[i][1] = data[i][2] = (unsigned char) ((int) (in[i] - '0') * 127 / 7 + 128);
267                         data[i][3] = 255;
268                 }
269         }
270         return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num+1), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
271 }
272
273 static rtexture_t *draw_generateditherpattern(void)
274 {
275 #if 1
276         int x, y;
277         unsigned char data[8*8*4];
278         for (y = 0;y < 8;y++)
279         {
280                 for (x = 0;x < 8;x++)
281                 {
282                         data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
283                         data[(y*8+x)*4+3] = 255;
284                 }
285         }
286         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
287 #else
288         unsigned char data[16];
289         memset(data, 255, sizeof(data));
290         data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
291         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
292 #endif
293 }
294
295 /*
296 ================
297 Draw_CachePic
298 ================
299 */
300 // FIXME: move this to client somehow
301 cachepic_t      *Draw_CachePic (const char *path, qboolean persistent)
302 {
303         int crc, hashkey;
304         cachepic_t *pic;
305         int flags;
306         fs_offset_t lmpsize;
307         unsigned char *lmpdata;
308         char lmpname[MAX_QPATH];
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 a high quality image from disk if possible
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 which did not require gfx/ prefix
348                 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
349         }
350         // if a high quality image was loaded, set the pic's size to match it, just
351         // in case there's no low quality version to get the size from
352         if (pic->tex)
353         {
354                 pic->width = R_TextureWidth(pic->tex);
355                 pic->height = R_TextureHeight(pic->tex);
356         }
357
358         // now read the low quality version (wad or lmp file), and take the pic
359         // size from that even if we don't upload the texture, this way the pics
360         // show up the right size in the menu even if they were replaced with
361         // higher or lower resolution versions
362         dpsnprintf(lmpname, sizeof(lmpname), "%s.lmp", path);
363         if (!strncmp(path, "gfx/", 4) && (lmpdata = FS_LoadFile(lmpname, tempmempool, false, &lmpsize)))
364         {
365                 if (lmpsize >= 9)
366                 {
367                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
368                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
369                         // if no high quality replacement image was found, upload the original low quality texture
370                         if (!pic->tex)
371                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
372                 }
373                 Mem_Free(lmpdata);
374         }
375         else if ((lmpdata = W_GetLumpName (path + 4)))
376         {
377                 if (!strcmp(path, "gfx/conchars"))
378                 {
379                         // conchars is a raw image and with color 0 as transparent instead of 255
380                         pic->width = 128;
381                         pic->height = 128;
382                         // if no high quality replacement image was found, upload the original low quality texture
383                         if (!pic->tex)
384                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, lmpdata, TEXTYPE_PALETTE, flags, palette_font);
385                 }
386                 else
387                 {
388                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
389                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
390                         // if no high quality replacement image was found, upload the original low quality texture
391                         if (!pic->tex)
392                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
393                 }
394         }
395
396         // if it's not found on disk, check if it's one of the builtin images
397         if (pic->tex == NULL)
398         {
399                 if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
400                         pic->tex = draw_generateconchars();
401                 if (pic->tex == NULL && !strcmp(path, "ui/mousepointer"))
402                         pic->tex = draw_generatemousepointer();
403                 if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001"))
404                         pic->tex = draw_generatemousepointer();
405                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1"))
406                         pic->tex = draw_generatecrosshair(0);
407                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2"))
408                         pic->tex = draw_generatecrosshair(1);
409                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3"))
410                         pic->tex = draw_generatecrosshair(2);
411                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4"))
412                         pic->tex = draw_generatecrosshair(3);
413                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5"))
414                         pic->tex = draw_generatecrosshair(4);
415                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair6"))
416                         pic->tex = draw_generatecrosshair(5);
417                 if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern"))
418                         pic->tex = draw_generateditherpattern();
419                 if (pic->tex == NULL)
420                 {
421                         // don't complain about missing gfx/crosshair images
422                         if (strncmp(path, "gfx/crosshair", 13))
423                                 Con_Printf("Draw_CachePic: failed to load %s\n", path);
424                         pic->tex = r_texture_notexture;
425                 }
426                 pic->width = R_TextureWidth(pic->tex);
427                 pic->height = R_TextureHeight(pic->tex);
428         }
429
430         return pic;
431 }
432
433 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels)
434 {
435         int crc, hashkey;
436         cachepic_t *pic;
437
438         crc = CRC_Block((unsigned char *)picname, strlen(picname));
439         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
440         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
441                 if (!strcmp (picname, pic->name))
442                         break;
443
444         if (pic)
445         {
446                 if (pic->tex && pic->width == width && pic->height == height)
447                 {
448                         R_UpdateTexture(pic->tex, pixels, 0, 0, width, height);
449                         return pic;
450                 }
451         }
452         else
453         {
454                 if (pic == NULL)
455                 {
456                         if (numcachepics == MAX_CACHED_PICS)
457                         {
458                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
459                                 // FIXME: support NULL in callers?
460                                 return cachepics; // return the first one
461                         }
462                         pic = cachepics + (numcachepics++);
463                         strlcpy (pic->name, picname, sizeof(pic->name));
464                         // link into list
465                         pic->chain = cachepichash[hashkey];
466                         cachepichash[hashkey] = pic;
467                 }
468         }
469
470         pic->width = width;
471         pic->height = height;
472         if (pic->tex)
473                 R_FreeTexture(pic->tex);
474         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
475         return pic;
476 }
477
478 void Draw_FreePic(const char *picname)
479 {
480         int crc;
481         int hashkey;
482         cachepic_t *pic;
483         // this doesn't really free the pic, but does free it's texture
484         crc = CRC_Block((unsigned char *)picname, strlen(picname));
485         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
486         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
487         {
488                 if (!strcmp (picname, pic->name) && pic->tex)
489                 {
490                         R_FreeTexture(pic->tex);
491                         pic->width = 0;
492                         pic->height = 0;
493                         return;
494                 }
495         }
496 }
497
498 /*
499 ===============
500 Draw_Init
501 ===============
502 */
503 static void gl_draw_start(void)
504 {
505         int i;
506         drawtexturepool = R_AllocTexturePool();
507
508         numcachepics = 0;
509         memset(cachepichash, 0, sizeof(cachepichash));
510
511         char_texture = Draw_CachePic("gfx/conchars", true)->tex;
512         for (i = 1;i <= NUMCROSSHAIRS;i++)
513                 r_crosshairs[i] = Draw_CachePic(va("gfx/crosshair%i", i), true);
514
515         // draw the loading screen so people have something to see in the newly opened window
516         SCR_UpdateLoadingScreen(true);
517 }
518
519 static void gl_draw_shutdown(void)
520 {
521         R_FreeTexturePool(&drawtexturepool);
522
523         numcachepics = 0;
524         memset(cachepichash, 0, sizeof(cachepichash));
525 }
526
527 static void gl_draw_newmap(void)
528 {
529 }
530
531 void GL_Draw_Init (void)
532 {
533         Cvar_RegisterVariable(&r_textshadow);
534         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
535 }
536
537 static void _DrawQ_Setup(void)
538 {
539         if (r_refdef.draw2dstage)
540                 return;
541         r_refdef.draw2dstage = true;
542         CHECKGLERROR
543         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
544         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
545         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
546         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
547         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
548         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
549         R_Mesh_Matrix(&identitymatrix);
550
551         GL_DepthMask(true);
552         GL_DepthRange(0, 1);
553         GL_DepthTest(false);
554         GL_Color(1,1,1,1);
555         GL_AlphaTest(false);
556         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
557
558         if (gl_support_fragment_shader)
559         {
560                 qglUseProgramObjectARB(0);CHECKGLERROR
561         }
562 }
563
564 static void _DrawQ_ProcessDrawFlag(int flags)
565 {
566         _DrawQ_Setup();
567         CHECKGLERROR
568         if(flags == DRAWFLAG_ADDITIVE)
569                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
570         else if(flags == DRAWFLAG_MODULATE)
571                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
572         else if(flags == DRAWFLAG_2XMODULATE)
573                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
574         else
575                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
576 }
577
578 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
579 {
580         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);
581 }
582
583 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)
584 {
585         int i, num;
586         float *av, *at;
587         int batchcount;
588         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
589         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
590
591         if (alpha < (1.0f / 255.0f))
592                 return;
593
594         _DrawQ_ProcessDrawFlag(flags);
595
596         GL_Color(red, green, blue, alpha);
597
598         R_Mesh_VertexPointer(vertex3f, 0, 0);
599         R_Mesh_ColorPointer(NULL, 0, 0);
600         R_Mesh_ResetTextureState();
601         R_Mesh_TexBind(0, R_GetTexture(char_texture));
602         R_Mesh_TexCoordPointer(0, 2, texcoord2f, 0, 0);
603
604         at = texcoord2f;
605         av = vertex3f;
606         batchcount = 0;
607
608         if (maxlen < 1)
609                 maxlen = 9999;
610         for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
611         {
612                 float s, t, u, v;
613                 if (num == ' ')
614                         continue;
615                 s = (num & 15)*0.0625f + (0.5f / 256.0f);
616                 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
617                 u = 0.0625f - (1.0f / 256.0f);
618                 v = 0.0625f - (1.0f / 256.0f);
619                 at[ 0] = s  ;at[ 1] = t  ;
620                 at[ 2] = s+u;at[ 3] = t  ;
621                 at[ 4] = s+u;at[ 5] = t+v;
622                 at[ 6] = s  ;at[ 7] = t+v;
623                 av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
624                 av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
625                 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
626                 av[ 9] = x  ;av[10] = y+h;av[11] = 10;
627                 at += 8;
628                 av += 12;
629                 batchcount++;
630                 if (batchcount >= QUADELEMENTS_MAXQUADS)
631                 {
632                         GL_LockArrays(0, batchcount * 4);
633                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
634                         GL_LockArrays(0, 0);
635                         batchcount = 0;
636                         at = texcoord2f;
637                         av = vertex3f;
638                 }
639         }
640         if (batchcount > 0)
641         {
642                 GL_LockArrays(0, batchcount * 4);
643                 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
644                 GL_LockArrays(0, 0);
645         }
646 }
647
648 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)
649 {
650         float shadow;
651         if (r_textshadow.integer) {
652                 shadow = (1-((red+green+blue)));
653                 shadow = bound(0, shadow, 1);
654                 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,shadow,shadow,shadow,alpha*0.8,flags);
655         }
656
657         DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
658 }
659
660 // color tag printing
661 static vec4_t string_colors[] =
662 {
663         // Quake3 colors
664         // LordHavoc: why on earth is cyan before magenta in Quake3?
665         // LordHavoc: note: Doom3 uses white for [0] and [7]
666         {0.0, 0.0, 0.0, 1.0}, // black
667         {1.0, 0.0, 0.0, 1.0}, // red
668         {0.0, 1.0, 0.0, 1.0}, // green
669         {1.0, 1.0, 0.0, 1.0}, // yellow
670         {0.0, 0.0, 1.0, 1.0}, // blue
671         {0.0, 1.0, 1.0, 1.0}, // cyan
672         {1.0, 0.0, 1.0, 1.0}, // magenta
673         {1.0, 1.0, 1.0, 1.0}, // white
674         // [515]'s BX_COLOREDTEXT extension
675         {1.0, 1.0, 1.0, 0.5}, // half transparent
676         {0.5, 0.5, 0.5, 1.0}  // half brightness
677         // Black's color table
678         //{1.0, 1.0, 1.0, 1.0},
679         //{1.0, 0.0, 0.0, 1.0},
680         //{0.0, 1.0, 0.0, 1.0},
681         //{0.0, 0.0, 1.0, 1.0},
682         //{1.0, 1.0, 0.0, 1.0},
683         //{0.0, 1.0, 1.0, 1.0},
684         //{1.0, 0.0, 1.0, 1.0},
685         //{0.1, 0.1, 0.1, 1.0}
686 };
687
688 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
689
690 // color is read and changed in the end
691 float 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 )
692 {
693         vec_t *color;
694         int len;
695         int colorindex;
696         const char *start, *current;
697
698         if( !outcolor || *outcolor == -1 ) {
699                 colorindex = STRING_COLOR_DEFAULT;
700         } else {
701                 colorindex = *outcolor;
702         }
703         color = string_colors[colorindex];
704
705         if( maxlen < 1)
706                 len = (int)strlen( text );
707         else
708                 len = min( maxlen, (int) strlen( text ) );
709
710         start = current = text;
711         while( len > 0 ) {
712                 // check for color control char
713                 if( *current == STRING_COLOR_TAG ) {
714                         // get next char
715                         current++;
716                         len--;
717                         if( len == 0 ) {
718                                 break;
719                         }
720                         // display the tag char?
721                         if( *current == STRING_COLOR_TAG ) {
722                                 // only display one of the two
723                                 start = current;
724                                 // get the next char
725                                 current++;
726                                 len--;
727                         } else if( '0' <= *current && *current <= '9' ) {
728                                 colorindex = 0;
729                                 do {
730                                         colorindex = colorindex * 10 + (*current - '0');
731                                         // only read as long as it makes a valid index
732                                         if( colorindex >= (int)STRING_COLORS_COUNT ) {
733                                                 // undo the last operation
734                                                 colorindex /= 10;
735                                                 break;
736                                         }
737                                         current++;
738                                         len--;
739                                 } while( len > 0 && '0' <= *current && *current <= '9' );
740                                 // set the color
741                                 color = string_colors[colorindex];
742                                 // we jump over the color tag
743                                 start = current;
744                         }
745                 }
746                 // go on and read normal text in until the next control char
747                 while( len > 0 && *current != STRING_COLOR_TAG ) {
748                         current++;
749                         len--;
750                 }
751                 // display the text
752                 if( start != current ) {
753                         // draw the string
754                         DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
755                         // update x to be at the new start position
756                         x += (current - start) * scalex;
757                         // set start accordingly
758                         start = current;
759                 }
760         }
761
762         if( start != current ) {
763                 // draw the string
764                 DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
765                 // update x to be at the new start position
766                 x += (current - start) * scalex;
767                 // set start accordingly
768                 start = current;
769         }
770
771         // return the last colorindex
772         if( outcolor ) {
773                 *outcolor = colorindex;
774         }
775
776         // return the new x position
777         return x;
778 }
779
780 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)
781 {
782         float floats[36];
783
784         _DrawQ_ProcessDrawFlag(flags);
785
786         R_Mesh_VertexPointer(floats, 0, 0);
787         R_Mesh_ColorPointer(floats + 20, 0, 0);
788         R_Mesh_ResetTextureState();
789         if (pic)
790         {
791                 if (width == 0)
792                         width = pic->width;
793                 if (height == 0)
794                         height = pic->height;
795                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
796                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
797                 floats[12] = s1;floats[13] = t1;
798                 floats[14] = s2;floats[15] = t2;
799                 floats[16] = s4;floats[17] = t4;
800                 floats[18] = s3;floats[19] = t3;
801         }
802
803         floats[2] = floats[5] = floats[8] = floats[11] = 0;
804         floats[0] = floats[9] = x;
805         floats[1] = floats[4] = y;
806         floats[3] = floats[6] = x + width;
807         floats[7] = floats[10] = y + height;
808         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
809         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
810         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
811         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
812
813         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
814 }
815
816 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
817 {
818         _DrawQ_ProcessDrawFlag(flags);
819
820         R_Mesh_VertexPointer(mesh->data_vertex3f, 0, 0);
821         R_Mesh_ColorPointer(mesh->data_color4f, 0, 0);
822         R_Mesh_ResetTextureState();
823         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
824         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f, 0, 0);
825
826         GL_LockArrays(0, mesh->num_vertices);
827         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, 0, 0);
828         GL_LockArrays(0, 0);
829 }
830
831 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
832 {
833         int num;
834
835         _DrawQ_ProcessDrawFlag(flags);
836
837         GL_Color(1,1,1,1);
838         CHECKGLERROR
839         qglBegin(GL_LINE_LOOP);
840         for (num = 0;num < mesh->num_vertices;num++)
841         {
842                 if (mesh->data_color4f)
843                         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]);
844                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
845         }
846         qglEnd();
847         CHECKGLERROR
848 }
849
850 //[515]: this is old, delete
851 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
852 {
853         _DrawQ_ProcessDrawFlag(flags);
854
855         CHECKGLERROR
856         qglLineWidth(width);CHECKGLERROR
857
858         GL_Color(r,g,b,alpha);
859         CHECKGLERROR
860         qglBegin(GL_LINES);
861         qglVertex2f(x1, y1);
862         qglVertex2f(x2, y2);
863         qglEnd();
864         CHECKGLERROR
865 }
866
867 void DrawQ_SetClipArea(float x, float y, float width, float height)
868 {
869         _DrawQ_Setup();
870
871         // We have to convert the con coords into real coords
872         // OGL uses top to bottom
873         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)));
874
875         GL_ScissorTest(true);
876 }
877
878 void DrawQ_ResetClipArea(void)
879 {
880         _DrawQ_Setup();
881         GL_ScissorTest(false);
882 }
883
884 void DrawQ_Finish(void)
885 {
886         r_refdef.draw2dstage = false;
887 }
888
889 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
890 void R_DrawGamma(void)
891 {
892         float c[4];
893         if (!vid_usinghwgamma)
894         {
895                 // all the blends ignore depth
896                 R_Mesh_VertexPointer(blendvertex3f, 0, 0);
897                 R_Mesh_ColorPointer(NULL, 0, 0);
898                 R_Mesh_ResetTextureState();
899                 GL_DepthMask(true);
900                 GL_DepthRange(0, 1);
901                 GL_DepthTest(false);
902                 if (v_color_enable.integer)
903                 {
904                         c[0] = v_color_white_r.value;
905                         c[1] = v_color_white_g.value;
906                         c[2] = v_color_white_b.value;
907                 }
908                 else
909                         c[0] = c[1] = c[2] = v_contrast.value;
910                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
911                 {
912                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
913                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
914                         {
915                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
916                                 R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
917                                 VectorScale(c, 0.5, c);
918                         }
919                 }
920                 if (v_color_enable.integer)
921                 {
922                         c[0] = v_color_black_r.value;
923                         c[1] = v_color_black_g.value;
924                         c[2] = v_color_black_b.value;
925                 }
926                 else
927                         c[0] = c[1] = c[2] = v_brightness.value;
928                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
929                 {
930                         GL_BlendFunc(GL_ONE, GL_ONE);
931                         GL_Color(c[0], c[1], c[2], 1);
932                         R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
933                 }
934         }
935 }
936