2f4367c1c3fdd07f43f29e0757a16a6f7060ed39
[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 (note: value controls offset, 1 = 1 pixel, 1.5 = 1.5 pixels, etc)"};
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_PolygonOffset(0, 0);
554         GL_DepthTest(false);
555         GL_Color(1,1,1,1);
556         GL_AlphaTest(false);
557         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
558
559         if (gl_support_fragment_shader)
560         {
561                 qglUseProgramObjectARB(0);CHECKGLERROR
562         }
563 }
564
565 static void _DrawQ_ProcessDrawFlag(int flags)
566 {
567         _DrawQ_Setup();
568         CHECKGLERROR
569         if(flags == DRAWFLAG_ADDITIVE)
570                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
571         else if(flags == DRAWFLAG_MODULATE)
572                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
573         else if(flags == DRAWFLAG_2XMODULATE)
574                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
575         else
576                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
577 }
578
579 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
580 {
581         float floats[20];
582
583         _DrawQ_ProcessDrawFlag(flags);
584         GL_Color(red, green, blue, alpha);
585
586         R_Mesh_VertexPointer(floats, 0, 0);
587         R_Mesh_ColorPointer(NULL, 0, 0);
588         R_Mesh_ResetTextureState();
589         if (pic)
590         {
591                 if (width == 0)
592                         width = pic->width;
593                 if (height == 0)
594                         height = pic->height;
595                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
596                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
597                 floats[12] = 0;floats[13] = 0;
598                 floats[14] = 1;floats[15] = 0;
599                 floats[16] = 1;floats[17] = 1;
600                 floats[18] = 0;floats[19] = 1;
601         }
602
603         floats[2] = floats[5] = floats[8] = floats[11] = 0;
604         floats[0] = floats[9] = x;
605         floats[1] = floats[4] = y;
606         floats[3] = floats[6] = x + width;
607         floats[7] = floats[10] = y + height;
608
609         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
610 }
611
612 void DrawQ_Fill(float x, float y, float width, float height, float red, float green, float blue, float alpha, int flags)
613 {
614         float floats[12];
615
616         _DrawQ_ProcessDrawFlag(flags);
617         GL_Color(red, green, blue, alpha);
618
619         R_Mesh_VertexPointer(floats, 0, 0);
620         R_Mesh_ColorPointer(NULL, 0, 0);
621         R_Mesh_ResetTextureState();
622
623         floats[2] = floats[5] = floats[8] = floats[11] = 0;
624         floats[0] = floats[9] = x;
625         floats[1] = floats[4] = y;
626         floats[3] = floats[6] = x + width;
627         floats[7] = floats[10] = y + height;
628
629         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
630 }
631
632 // color tag printing
633 static vec4_t string_colors[] =
634 {
635         // Quake3 colors
636         // LordHavoc: why on earth is cyan before magenta in Quake3?
637         // LordHavoc: note: Doom3 uses white for [0] and [7]
638         {0.0, 0.0, 0.0, 1.0}, // black
639         {1.0, 0.0, 0.0, 1.0}, // red
640         {0.0, 1.0, 0.0, 1.0}, // green
641         {1.0, 1.0, 0.0, 1.0}, // yellow
642         {0.0, 0.0, 1.0, 1.0}, // blue
643         {0.0, 1.0, 1.0, 1.0}, // cyan
644         {1.0, 0.0, 1.0, 1.0}, // magenta
645         {1.0, 1.0, 1.0, 1.0}, // white
646         // [515]'s BX_COLOREDTEXT extension
647         {1.0, 1.0, 1.0, 0.5}, // half transparent
648         {0.5, 0.5, 0.5, 1.0}  // half brightness
649         // Black's color table
650         //{1.0, 1.0, 1.0, 1.0},
651         //{1.0, 0.0, 0.0, 1.0},
652         //{0.0, 1.0, 0.0, 1.0},
653         //{0.0, 0.0, 1.0, 1.0},
654         //{1.0, 1.0, 0.0, 1.0},
655         //{0.0, 1.0, 1.0, 1.0},
656         //{1.0, 0.0, 1.0, 1.0},
657         //{0.1, 0.1, 0.1, 1.0}
658 };
659
660 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
661
662 static void DrawQ_GetTextColor(float color[4], int colorindex, float r, float g, float b, float a, qboolean shadow)
663 {
664         Vector4Copy(string_colors[colorindex], color);
665         Vector4Set(color, color[0] * r, color[1] * g, color[2] * b, color[3] * a);
666         if (shadow)
667         {
668                 float shadowalpha = color[0]+color[1]+color[2] * 0.8;
669                 Vector4Set(color, 0, 0, 0, color[3] * bound(0, shadowalpha, 1));
670         }
671 }
672
673 float DrawQ_String(float startx, float starty, const char *text, int maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes)
674 {
675         int i, num, shadow, colorindex = STRING_COLOR_DEFAULT;
676         float x = startx, y, s, t, u, v;
677         float *av, *at, *ac;
678         float color[4];
679         int batchcount;
680         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
681         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
682         float color4f[QUADELEMENTS_MAXQUADS*4*4];
683
684         if (maxlen < 1)
685                 maxlen = 1<<30;
686
687         _DrawQ_ProcessDrawFlag(flags);
688
689         R_Mesh_ColorPointer(color4f, 0, 0);
690         R_Mesh_ResetTextureState();
691         R_Mesh_TexBind(0, R_GetTexture(char_texture));
692         R_Mesh_TexCoordPointer(0, 2, texcoord2f, 0, 0);
693         R_Mesh_VertexPointer(vertex3f, 0, 0);
694
695         ac = color4f;
696         at = texcoord2f;
697         av = vertex3f;
698         batchcount = 0;
699
700         for (shadow = r_textshadow.value != 0;shadow >= 0;shadow--)
701         {
702                 if (!outcolor || *outcolor == -1)
703                         colorindex = STRING_COLOR_DEFAULT;
704                 else
705                         colorindex = *outcolor;
706                 DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
707
708                 x = startx;
709                 y = starty;
710                 if (shadow)
711                 {
712                         x += r_textshadow.value;
713                         y += r_textshadow.value;
714                 }
715                 for (i = 0;i < maxlen && text[i];i++, x += w)
716                 {
717                         if (text[i] == ' ')
718                                 continue;
719                         if (text[i] == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < maxlen)
720                         {
721                                 if (text[i+1] == STRING_COLOR_TAG)
722                                 {
723                                         i++;
724                                         if (text[i] == ' ')
725                                                 continue;
726                                 }
727                                 else if (text[i+1] >= '0' && text[i+1] <= '9')
728                                 {
729                                         colorindex = text[i+1] - '0';
730                                         DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
731                                         i++;
732                                         x -= w;
733                                         continue;
734                                 }
735                         }
736                         num = text[i];
737                         s = (num & 15)*0.0625f + (0.5f / 256.0f);
738                         t = (num >> 4)*0.0625f + (0.5f / 256.0f);
739                         u = 0.0625f - (1.0f / 256.0f);
740                         v = 0.0625f - (1.0f / 256.0f);
741                         ac[ 0] = color[0];ac[ 1] = color[1];ac[ 2] = color[2];ac[ 3] = color[3];
742                         ac[ 4] = color[0];ac[ 5] = color[1];ac[ 6] = color[2];ac[ 7] = color[3];
743                         ac[ 8] = color[0];ac[ 9] = color[1];ac[10] = color[2];ac[11] = color[3];
744                         ac[12] = color[0];ac[13] = color[1];ac[14] = color[2];ac[15] = color[3];
745                         at[ 0] = s  ;at[ 1] = t  ;
746                         at[ 2] = s+u;at[ 3] = t  ;
747                         at[ 4] = s+u;at[ 5] = t+v;
748                         at[ 6] = s  ;at[ 7] = t+v;
749                         av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
750                         av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
751                         av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
752                         av[ 9] = x  ;av[10] = y+h;av[11] = 10;
753                         ac += 16;
754                         at += 8;
755                         av += 12;
756                         batchcount++;
757                         if (batchcount >= QUADELEMENTS_MAXQUADS)
758                         {
759                                 if (basealpha >= (1.0f / 255.0f))
760                                 {
761                                         GL_LockArrays(0, batchcount * 4);
762                                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
763                                         GL_LockArrays(0, 0);
764                                 }
765                                 batchcount = 0;
766                                 ac = color4f;
767                                 at = texcoord2f;
768                                 av = vertex3f;
769                         }
770                 }
771         }
772         if (batchcount > 0)
773         {
774                 if (basealpha >= (1.0f / 255.0f))
775                 {
776                         GL_LockArrays(0, batchcount * 4);
777                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
778                         GL_LockArrays(0, 0);
779                 }
780         }
781
782         if (outcolor)
783                 *outcolor = colorindex;
784
785         // note: this relies on the proper text (not shadow) being drawn last
786         return x;
787 }
788
789 #if 0
790 // not used
791 static int DrawQ_BuildColoredText(char *output2c, size_t maxoutchars, const char *text, int maxreadchars, qboolean ignorecolorcodes, int *outcolor)
792 {
793         int color, numchars = 0;
794         char *outputend2c = output2c + maxoutchars - 2;
795         if (!outcolor || *outcolor == -1)
796                 color = STRING_COLOR_DEFAULT;
797         else
798                 color = *outcolor;
799         if (!maxreadchars)
800                 maxreadchars = 1<<30;
801         textend = text + maxreadchars;
802         while (text != textend && *text)
803         {
804                 if (*text == STRING_COLOR_TAG && !ignorecolorcodes && text + 1 != textend)
805                 {
806                         if (text[1] == STRING_COLOR_TAG)
807                                 text++;
808                         else if (text[1] >= '0' && text[1] <= '9')
809                         {
810                                 color = text[1] - '0';
811                                 text += 2;
812                                 continue;
813                         }
814                 }
815                 if (output2c >= outputend2c)
816                         break;
817                 *output2c++ = *text++;
818                 *output2c++ = color;
819                 numchars++;
820         }
821         output2c[0] = output2c[1] = 0;
822         if (outcolor)
823                 *outcolor = color;
824         return numchars;
825 }
826 #endif
827
828 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)
829 {
830         float floats[36];
831
832         _DrawQ_ProcessDrawFlag(flags);
833
834         R_Mesh_VertexPointer(floats, 0, 0);
835         R_Mesh_ColorPointer(floats + 20, 0, 0);
836         R_Mesh_ResetTextureState();
837         if (pic)
838         {
839                 if (width == 0)
840                         width = pic->width;
841                 if (height == 0)
842                         height = pic->height;
843                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
844                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
845                 floats[12] = s1;floats[13] = t1;
846                 floats[14] = s2;floats[15] = t2;
847                 floats[16] = s4;floats[17] = t4;
848                 floats[18] = s3;floats[19] = t3;
849         }
850
851         floats[2] = floats[5] = floats[8] = floats[11] = 0;
852         floats[0] = floats[9] = x;
853         floats[1] = floats[4] = y;
854         floats[3] = floats[6] = x + width;
855         floats[7] = floats[10] = y + height;
856         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
857         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
858         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
859         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
860
861         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
862 }
863
864 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
865 {
866         _DrawQ_ProcessDrawFlag(flags);
867
868         R_Mesh_VertexPointer(mesh->data_vertex3f, 0, 0);
869         R_Mesh_ColorPointer(mesh->data_color4f, 0, 0);
870         R_Mesh_ResetTextureState();
871         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
872         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f, 0, 0);
873
874         GL_LockArrays(0, mesh->num_vertices);
875         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, 0, 0);
876         GL_LockArrays(0, 0);
877 }
878
879 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
880 {
881         int num;
882
883         _DrawQ_ProcessDrawFlag(flags);
884
885         GL_Color(1,1,1,1);
886         CHECKGLERROR
887         qglBegin(GL_LINE_LOOP);
888         for (num = 0;num < mesh->num_vertices;num++)
889         {
890                 if (mesh->data_color4f)
891                         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]);
892                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
893         }
894         qglEnd();
895         CHECKGLERROR
896 }
897
898 //[515]: this is old, delete
899 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
900 {
901         _DrawQ_ProcessDrawFlag(flags);
902
903         CHECKGLERROR
904         qglLineWidth(width);CHECKGLERROR
905
906         GL_Color(r,g,b,alpha);
907         CHECKGLERROR
908         qglBegin(GL_LINES);
909         qglVertex2f(x1, y1);
910         qglVertex2f(x2, y2);
911         qglEnd();
912         CHECKGLERROR
913 }
914
915 void DrawQ_SetClipArea(float x, float y, float width, float height)
916 {
917         _DrawQ_Setup();
918
919         // We have to convert the con coords into real coords
920         // OGL uses top to bottom
921         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)));
922
923         GL_ScissorTest(true);
924 }
925
926 void DrawQ_ResetClipArea(void)
927 {
928         _DrawQ_Setup();
929         GL_ScissorTest(false);
930 }
931
932 void DrawQ_Finish(void)
933 {
934         r_refdef.draw2dstage = false;
935 }
936
937 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
938 void R_DrawGamma(void)
939 {
940         float c[4];
941         if (!vid_usinghwgamma)
942         {
943                 // all the blends ignore depth
944                 R_Mesh_VertexPointer(blendvertex3f, 0, 0);
945                 R_Mesh_ColorPointer(NULL, 0, 0);
946                 R_Mesh_ResetTextureState();
947                 GL_DepthMask(true);
948                 GL_DepthRange(0, 1);
949                 GL_PolygonOffset(0, 0);
950                 GL_DepthTest(false);
951                 if (v_color_enable.integer)
952                 {
953                         c[0] = v_color_white_r.value;
954                         c[1] = v_color_white_g.value;
955                         c[2] = v_color_white_b.value;
956                 }
957                 else
958                         c[0] = c[1] = c[2] = v_contrast.value;
959                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
960                 {
961                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
962                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
963                         {
964                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
965                                 R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
966                                 VectorScale(c, 0.5, c);
967                         }
968                 }
969                 if (v_color_enable.integer)
970                 {
971                         c[0] = v_color_black_r.value;
972                         c[1] = v_color_black_g.value;
973                         c[2] = v_color_black_b.value;
974                 }
975                 else
976                         c[0] = c[1] = c[2] = v_brightness.value;
977                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
978                 {
979                         GL_BlendFunc(GL_ONE, GL_ONE);
980                         GL_Color(c[0], c[1], c[2], 1);
981                         R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
982                 }
983         }
984 }
985