eliminated rmeshstate_t .pointer_vertex and .pointer_color (now must use R_Mesh_Verte...
[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, 0, 0, width, height);
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), true);
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         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
533         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
534
535         if (!r_refdef.draw2dstage)
536         {
537                 Con_Printf("DrawQ_String: not in 2d rendering stage!\n");
538                 return;
539         }
540
541         if (!r_render.integer)
542                 return;
543
544         if (alpha < (1.0f / 255.0f))
545                 return;
546
547         if(flags == DRAWFLAG_ADDITIVE)
548                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
549         else if(flags == DRAWFLAG_MODULATE)
550                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
551         else if(flags == DRAWFLAG_2XMODULATE)
552                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
553         else
554                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
555
556         GL_Color(red, green, blue, alpha);
557
558         R_Mesh_VertexPointer(vertex3f);
559         R_Mesh_ColorPointer(NULL);
560         R_Mesh_ResetTextureState();
561         R_Mesh_TexBind(0, R_GetTexture(char_texture));
562         R_Mesh_TexCoordPointer(0, 2, texcoord2f);
563
564         at = texcoord2f;
565         av = 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 = texcoord2f;
597                         av = 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         float floats[36];
738
739         if (!r_refdef.draw2dstage)
740         {
741                 Con_Printf("DrawQ_SuperPic: not in 2d rendering stage!\n");
742                 return;
743         }
744
745         if (!r_render.integer)
746                 return;
747
748         if(flags == DRAWFLAG_ADDITIVE)
749                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
750         else if(flags == DRAWFLAG_MODULATE)
751                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
752         else if(flags == DRAWFLAG_2XMODULATE)
753                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
754         else
755                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
756
757         R_Mesh_VertexPointer(floats);
758         R_Mesh_ColorPointer(floats + 20);
759         R_Mesh_ResetTextureState();
760         if (pic)
761         {
762                 if (width == 0)
763                         width = pic->width;
764                 if (height == 0)
765                         height = pic->height;
766                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
767                 R_Mesh_TexCoordPointer(0, 2, floats + 12);
768                 floats[12] = s1;floats[13] = t1;
769                 floats[14] = s2;floats[15] = t2;
770                 floats[16] = s4;floats[17] = t4;
771                 floats[18] = s3;floats[19] = t3;
772         }
773
774         floats[2] = floats[5] = floats[8] = floats[11] = 0;
775         floats[0] = floats[9] = x;
776         floats[1] = floats[4] = y;
777         floats[3] = floats[6] = x + width;
778         floats[7] = floats[10] = y + height;
779         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
780         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
781         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
782         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
783
784         R_Mesh_Draw(0, 4, 2, polygonelements);
785 }
786
787 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
788 {
789         if (!r_refdef.draw2dstage)
790         {
791                 Con_Printf("DrawQ_Mesh: not in 2d rendering stage!\n");
792                 return;
793         }
794
795         if (!r_render.integer)
796                 return;
797
798         if(flags == DRAWFLAG_ADDITIVE)
799                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
800         else if(flags == DRAWFLAG_MODULATE)
801                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
802         else if(flags == DRAWFLAG_2XMODULATE)
803                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
804         else
805                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
806
807         R_Mesh_VertexPointer(mesh->data_vertex3f);
808         R_Mesh_ColorPointer(mesh->data_color4f);
809         R_Mesh_ResetTextureState();
810         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
811         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f);
812
813         GL_LockArrays(0, mesh->num_vertices);
814         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
815         GL_LockArrays(0, 0);
816 }
817
818 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
819 {
820         int num;
821
822         if (!r_refdef.draw2dstage)
823         {
824                 Con_Printf("DrawQ_LineLoop: not in 2d rendering stage!\n");
825                 return;
826         }
827
828         if (!r_render.integer)
829                 return;
830
831         if(flags == DRAWFLAG_ADDITIVE)
832                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
833         else if(flags == DRAWFLAG_MODULATE)
834                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
835         else if(flags == DRAWFLAG_2XMODULATE)
836                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
837         else
838                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
839
840         GL_Color(1,1,1,1);
841         qglBegin(GL_LINE_LOOP);
842         for (num = 0;num < mesh->num_vertices;num++)
843         {
844                 if (mesh->data_color4f)
845                         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]);
846                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
847         }
848         qglEnd();
849 }
850
851 //LordHavoc: FIXME: this is nasty!
852 void DrawQ_LineWidth (float width)
853 {
854         if (!r_refdef.draw2dstage)
855         {
856                 Con_Printf("DrawQ_LineWidth: not in 2d rendering stage!\n");
857                 return;
858         }
859         qglLineWidth(width);
860 }
861
862 //[515]: this is old, delete
863 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
864 {
865         if (!r_refdef.draw2dstage)
866         {
867                 Con_Printf("DrawQ_Line: not in 2d rendering stage!\n");
868                 return;
869         }
870
871         if (!r_render.integer)
872                 return;
873
874         if(width > 0)
875                 DrawQ_LineWidth(width);
876
877         if(flags == DRAWFLAG_ADDITIVE)
878                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
879         else if(flags == DRAWFLAG_MODULATE)
880                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
881         else if(flags == DRAWFLAG_2XMODULATE)
882                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
883         else
884                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
885
886         GL_Color(r,g,b,alpha);
887         qglBegin(GL_LINES);
888         qglVertex2f(x1, y1);
889         qglVertex2f(x2, y2);
890         qglEnd();
891 }
892
893 void DrawQ_SetClipArea(float x, float y, float width, float height)
894 {
895         if (!r_refdef.draw2dstage)
896         {
897                 Con_Printf("DrawQ_SetClipArea: not in 2d rendering stage!\n");
898                 return;
899         }
900
901         // We have to convert the con coords into real coords
902         // OGL uses top to bottom
903         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)));
904
905         GL_ScissorTest(true);
906 }
907
908 void DrawQ_ResetClipArea(void)
909 {
910         if (!r_refdef.draw2dstage)
911         {
912                 Con_Printf("DrawQ_ResetClipArea: not in 2d rendering stage!\n");
913                 return;
914         }
915         GL_ScissorTest(false);
916 }
917
918 void DrawQ_Finish(void)
919 {
920         if (!r_refdef.draw2dstage)
921         {
922                 Con_Printf("R_DrawQueue: not in 2d rendering stage!\n");
923                 return;
924         }
925
926         r_refdef.draw2dstage = false;
927 }
928
929 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
930 void R_DrawGamma(void)
931 {
932         float c[4];
933         if (!vid_usinghwgamma)
934         {
935                 // all the blends ignore depth
936                 R_Mesh_VertexPointer(blendvertex3f);
937                 R_Mesh_ColorPointer(NULL);
938                 R_Mesh_ResetTextureState();
939                 GL_DepthMask(true);
940                 GL_DepthTest(false);
941                 if (v_color_enable.integer)
942                 {
943                         c[0] = v_color_white_r.value;
944                         c[1] = v_color_white_g.value;
945                         c[2] = v_color_white_b.value;
946                 }
947                 else
948                         c[0] = c[1] = c[2] = v_contrast.value;
949                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
950                 {
951                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
952                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
953                         {
954                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
955                                 R_Mesh_Draw(0, 3, 1, polygonelements);
956                                 VectorScale(c, 0.5, c);
957                         }
958                 }
959                 if (v_color_enable.integer)
960                 {
961                         c[0] = v_color_black_r.value;
962                         c[1] = v_color_black_g.value;
963                         c[2] = v_color_black_b.value;
964                 }
965                 else
966                         c[0] = c[1] = c[2] = v_brightness.value;
967                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
968                 {
969                         GL_BlendFunc(GL_ONE, GL_ONE);
970                         GL_Color(c[0], c[1], c[2], 1);
971                         R_Mesh_Draw(0, 3, 1, polygonelements);
972                 }
973         }
974 }
975