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 #include "cl_dyntexture.h"
  27
  28 #include "ft2.h"
  29 #include "ft2_fontdefs.h"
  30
  31 dp_font_t dp_fonts[MAX_FONTS] = {{0}};
  32
  33 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)"};
  34 cvar_t r_textbrightness = {CVAR_SAVE, "r_textbrightness", "0", "additional brightness for text color codes (0 keeps colors as is, 1 makes them all white)"};
  35 cvar_t r_textcontrast = {CVAR_SAVE, "r_textcontrast", "1", "additional contrast for text color codes (1 keeps colors as is, 0 makes them all black)"};
  36
  37 extern cvar_t v_glslgamma;
  38
  39 //=============================================================================
  40 /* Support Routines */
  41
  42 #define FONT_FILESIZE 13468
  43 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
  44 static cachepic_t cachepics[MAX_CACHED_PICS];
  45 static int numcachepics;
  46
  47 static rtexturepool_t *drawtexturepool;
  48
  49 static const unsigned char concharimage[FONT_FILESIZE] =
  50 {
  51 #include "lhfont.h"
  52 };
  53
  54 static rtexture_t *draw_generateconchars(void)
  55 {
  56         int i;
  57         unsigned char *data;
  58         double random;
  59         rtexture_t *tex;
  60
  61         data = LoadTGA_BGRA (concharimage, FONT_FILESIZE);
  62 // Gold numbers
  63         for (i = 0;i < 8192;i++)
  64         {
  65                 random = lhrandom (0.0,1.0);
  66                 data[i*4+3] = data[i*4+0];
  67                 data[i*4+2] = 83 + (unsigned char)(random * 64);
  68                 data[i*4+1] = 71 + (unsigned char)(random * 32);
  69                 data[i*4+0] = 23 + (unsigned char)(random * 16);
  70         }
  71 // White chars
  72         for (i = 8192;i < 32768;i++)
  73         {
  74                 random = lhrandom (0.0,1.0);
  75                 data[i*4+3] = data[i*4+0];
  76                 data[i*4+2] = 95 + (unsigned char)(random * 64);
  77                 data[i*4+1] = 95 + (unsigned char)(random * 64);
  78                 data[i*4+0] = 95 + (unsigned char)(random * 64);
  79         }
  80 // Gold numbers
  81         for (i = 32768;i < 40960;i++)
  82         {
  83                 random = lhrandom (0.0,1.0);
  84                 data[i*4+3] = data[i*4+0];
  85                 data[i*4+2] = 83 + (unsigned char)(random * 64);
  86                 data[i*4+1] = 71 + (unsigned char)(random * 32);
  87                 data[i*4+0] = 23 + (unsigned char)(random * 16);
  88         }
  89 // Red chars
  90         for (i = 40960;i < 65536;i++)
  91         {
  92                 random = lhrandom (0.0,1.0);
  93                 data[i*4+3] = data[i*4+0];
  94                 data[i*4+2] = 96 + (unsigned char)(random * 64);
  95                 data[i*4+1] = 43 + (unsigned char)(random * 32);
  96                 data[i*4+0] = 27 + (unsigned char)(random * 32);
  97         }
  98
  99 #if 0
 100         Image_WriteTGABGRA ("gfx/generated_conchars.tga", 256, 256, data);
 101 #endif
 102
 103         tex = R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, data, TEXTYPE_BGRA, TEXF_ALPHA, NULL);
 104         Mem_Free(data);
 105         return tex;
 106 }
 107
 108 static rtexture_t *draw_generateditherpattern(void)
 109 {
 110         int x, y;
 111         unsigned char pixels[8][8];
 112         for (y = 0;y < 8;y++)
 113                 for (x = 0;x < 8;x++)
 114                         pixels[y][x] = ((x^y) & 4) ? 254 : 0;
 115         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, pixels[0], TEXTYPE_PALETTE, TEXF_FORCENEAREST, palette_bgra_transparent);
 116 }
 117
 118 typedef struct embeddedpic_s
 119 {
 120         const char *name;
 121         int width;
 122         int height;
 123         const char *pixels;
 124 }
 125 embeddedpic_t;
 126
 127 static const embeddedpic_t embeddedpics[] =
 128 {
 129         {
 130         "gfx/prydoncursor001", 16, 16,
 131         "477777774......."
 132         "77.....6........"
 133         "7.....6........."
 134         "7....6.........."
 135         "7.....6........."
 136         "7..6...6........"
 137         "7.6.6...6......."
 138         "76...6...6......"
 139         "4.....6.6......."
 140         ".......6........"
 141         "................"
 142         "................"
 143         "................"
 144         "................"
 145         "................"
 146         "................"
 147         },
 148         {
 149         "ui/mousepointer", 16, 16,
 150         "477777774......."
 151         "77.....6........"
 152         "7.....6........."
 153         "7....6.........."
 154         "7.....6........."
 155         "7..6...6........"
 156         "7.6.6...6......."
 157         "76...6...6......"
 158         "4.....6.6......."
 159         ".......6........"
 160         "................"
 161         "................"
 162         "................"
 163         "................"
 164         "................"
 165         "................"
 166         },
 167         {
 168         "gfx/crosshair1", 16, 16,
 169         "................"
 170         "................"
 171         "................"
 172         "...33......33..."
 173         "...355....553..."
 174         "....577..775...."
 175         ".....77..77....."
 176         "................"
 177         "................"
 178         ".....77..77....."
 179         "....577..775...."
 180         "...355....553..."
 181         "...33......33..."
 182         "................"
 183         "................"
 184         "................"
 185         },
 186         {
 187         "gfx/crosshair2", 16, 16,
 188         "................"
 189         "................"
 190         "................"
 191         "...3........3..."
 192         "....5......5...."
 193         ".....7....7....."
 194         "......7..7......"
 195         "................"
 196         "................"
 197         "......7..7......"
 198         ".....7....7....."
 199         "....5......5...."
 200         "...3........3..."
 201         "................"
 202         "................"
 203         "................"
 204         },
 205         {
 206         "gfx/crosshair3", 16, 16,
 207         "................"
 208         ".......77......."
 209         ".......77......."
 210         "................"
 211         "................"
 212         ".......44......."
 213         ".......44......."
 214         ".77..44..44..77."
 215         ".77..44..44..77."
 216         ".......44......."
 217         ".......44......."
 218         "................"
 219         "................"
 220         ".......77......."
 221         ".......77......."
 222         "................"
 223         },
 224         {
 225         "gfx/crosshair4", 16, 16,
 226         "................"
 227         "................"
 228         "................"
 229         "................"
 230         "................"
 231         "................"
 232         "................"
 233         "................"
 234         "........7777777."
 235         "........752....."
 236         "........72......"
 237         "........7......."
 238         "........7......."
 239         "........7......."
 240         "........7......."
 241         "................"
 242         },
 243         {
 244         "gfx/crosshair5", 8, 8,
 245         "........"
 246         "........"
 247         "....7..."
 248         "........"
 249         "..7.7.7."
 250         "........"
 251         "....7..."
 252         "........"
 253         },
 254         {
 255         "gfx/crosshair6", 2, 2,
 256         "77"
 257         "77"
 258         },
 259         {
 260         "gfx/crosshair7", 16, 16,
 261         "................"
 262         ".3............3."
 263         "..5...2332...5.."
 264         "...7.3....3.7..."
 265         "....7......7...."
 266         "...3.7....7.3..."
 267         "..2...7..7...2.."
 268         "..3..........3.."
 269         "..3..........3.."
 270         "..2...7..7...2.."
 271         "...3.7....7.3..."
 272         "....7......7...."
 273         "...7.3....3.7..."
 274         "..5...2332...5.."
 275         ".3............3."
 276         "................"
 277         },
 278         {NULL, 0, 0, NULL}
 279 };
 280
 281 static rtexture_t *draw_generatepic(const char *name, qboolean quiet)
 282 {
 283         const embeddedpic_t *p;
 284         for (p = embeddedpics;p->name;p++)
 285                 if (!strcmp(name, p->name))
 286                         return R_LoadTexture2D(drawtexturepool, p->name, p->width, p->height, (const unsigned char *)p->pixels, TEXTYPE_PALETTE, TEXF_ALPHA, palette_bgra_embeddedpic);
 287         if (!strcmp(name, "gfx/conchars"))
 288                 return draw_generateconchars();
 289         if (!strcmp(name, "gfx/colorcontrol/ditherpattern"))
 290                 return draw_generateditherpattern();
 291         if (!quiet)
 292                 Con_Printf("Draw_CachePic: failed to load %s\n", name);
 293         return r_texture_notexture;
 294 }
 295
 296
 297 /*
 298 ================
 299 Draw_CachePic
 300 ================
 301 */
 302 // FIXME: move this to client somehow
 303 cachepic_t *Draw_CachePic_Flags(const char *path, unsigned int cachepicflags)
 304 {
 305         int crc, hashkey;
 306         unsigned char *pixels;
 307         cachepic_t *pic;
 308         fs_offset_t lmpsize;
 309         unsigned char *lmpdata;
 310         char lmpname[MAX_QPATH];
 311
 312         // check whether the picture has already been cached
 313         crc = CRC_Block((unsigned char *)path, strlen(path));
 314         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 315         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 316                 if (!strcmp (path, pic->name))
 317                         return pic;
 318
 319         if (numcachepics == MAX_CACHED_PICS)
 320         {
 321                 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
 322                 // FIXME: support NULL in callers?
 323                 return cachepics; // return the first one
 324         }
 325         pic = cachepics + (numcachepics++);
 326         strlcpy (pic->name, path, sizeof(pic->name));
 327         // link into list
 328         pic->chain = cachepichash[hashkey];
 329         cachepichash[hashkey] = pic;
 330
 331         // check whether it is an dynamic texture (if so, we can directly use its texture handler)
 332         pic->tex = CL_GetDynTexture( path );
 333         // if so, set the width/height, too
 334         if( pic->tex ) {
 335                 pic->width = R_TextureWidth(pic->tex);
 336                 pic->height = R_TextureHeight(pic->tex);
 337                 // we're done now (early-out)
 338                 return pic;
 339         }
 340
 341         pic->texflags = TEXF_ALPHA;
 342         if (!(cachepicflags & CACHEPICFLAG_NOCLAMP))
 343                 pic->texflags |= TEXF_CLAMP;
 344         if (!(cachepicflags & CACHEPICFLAG_NOCOMPRESSION) && gl_texturecompression_2d.integer)
 345                 pic->texflags |= TEXF_COMPRESS;
 346
 347         pic->autoload = (cachepicflags & CACHEPICFLAG_NOTPERSISTENT);
 348
 349         // load a high quality image from disk if possible
 350         pixels = loadimagepixelsbgra(path, false, true);
 351         if (pixels == NULL && !strncmp(path, "gfx/", 4))
 352                 pixels = loadimagepixelsbgra(path+4, false, true);
 353         if (pixels)
 354         {
 355                 pic->width = image_width;
 356                 pic->height = image_height;
 357                 if (!pic->autoload)
 358                         pic->tex = R_LoadTexture2D(drawtexturepool, path, image_width, image_height, pixels, TEXTYPE_BGRA, pic->texflags, NULL);
 359         }
 360         else
 361         {
 362                 pic->autoload = false;
 363                 // never compress the fallback images
 364                 pic->texflags &= ~TEXF_COMPRESS;
 365         }
 366
 367         // now read the low quality version (wad or lmp file), and take the pic
 368         // size from that even if we don't upload the texture, this way the pics
 369         // show up the right size in the menu even if they were replaced with
 370         // higher or lower resolution versions
 371         dpsnprintf(lmpname, sizeof(lmpname), "%s.lmp", path);
 372         if (!strncmp(path, "gfx/", 4) && (lmpdata = FS_LoadFile(lmpname, tempmempool, false, &lmpsize)))
 373         {
 374                 if (developer_loading.integer)
 375                         Con_Printf("loading lump \"%s\"\n", path);
 376
 377                 if (lmpsize >= 9)
 378                 {
 379                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 380                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 381                         // if no high quality replacement image was found, upload the original low quality texture
 382                         if (!pixels)
 383                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, pic->texflags, palette_bgra_transparent);
 384                 }
 385                 Mem_Free(lmpdata);
 386         }
 387         else if ((lmpdata = W_GetLumpName (path + 4)))
 388         {
 389                 if (developer_loading.integer)
 390                         Con_Printf("loading gfx.wad lump \"%s\"\n", path + 4);
 391
 392                 if (!strcmp(path, "gfx/conchars"))
 393                 {
 394                         // conchars is a raw image and with color 0 as transparent instead of 255
 395                         pic->width = 128;
 396                         pic->height = 128;
 397                         // if no high quality replacement image was found, upload the original low quality texture
 398                         if (!pixels)
 399                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, lmpdata, TEXTYPE_PALETTE, pic->texflags, palette_bgra_font);
 400                 }
 401                 else
 402                 {
 403                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 404                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 405                         // if no high quality replacement image was found, upload the original low quality texture
 406                         if (!pixels)
 407                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, pic->texflags, palette_bgra_transparent);
 408                 }
 409         }
 410
 411         if (pixels)
 412         {
 413                 Mem_Free(pixels);
 414                 pixels = NULL;
 415         }
 416         else if (pic->tex == NULL)
 417         {
 418                 // if it's not found on disk, generate an image
 419                 pic->tex = draw_generatepic(path, (cachepicflags & CACHEPICFLAG_QUIET) != 0);
 420                 pic->width = R_TextureWidth(pic->tex);
 421                 pic->height = R_TextureHeight(pic->tex);
 422         }
 423
 424         return pic;
 425 }
 426
 427 cachepic_t *Draw_CachePic (const char *path)
 428 {
 429         return Draw_CachePic_Flags (path, 0);
 430 }
 431
 432 int draw_frame = 1;
 433
 434 rtexture_t *Draw_GetPicTexture(cachepic_t *pic)
 435 {
 436         if (pic->autoload && !pic->tex)
 437         {
 438                 pic->tex = loadtextureimage(drawtexturepool, pic->name, false, pic->texflags, true);
 439                 if (pic->tex == NULL && !strncmp(pic->name, "gfx/", 4))
 440                         pic->tex = loadtextureimage(drawtexturepool, pic->name+4, false, pic->texflags, true);
 441                 if (pic->tex == NULL)
 442                         pic->tex = draw_generatepic(pic->name, true);
 443         }
 444         pic->lastusedframe = draw_frame;
 445         return pic->tex;
 446 }
 447
 448 void Draw_Frame(void)
 449 {
 450         int i;
 451         cachepic_t *pic;
 452         static double nextpurgetime;
 453         int purgeframe;
 454         if (nextpurgetime > realtime)
 455                 return;
 456         nextpurgetime = realtime + 0.05;
 457         purgeframe = draw_frame - 1;
 458         for (i = 0, pic = cachepics;i < numcachepics;i++, pic++)
 459         {
 460                 if (pic->autoload && pic->tex && pic->lastusedframe < draw_frame)
 461                 {
 462                         R_FreeTexture(pic->tex);
 463                         pic->tex = NULL;
 464                 }
 465         }
 466         draw_frame++;
 467 }
 468
 469 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels_bgra)
 470 {
 471         int crc, hashkey;
 472         cachepic_t *pic;
 473
 474         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 475         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 476         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 477                 if (!strcmp (picname, pic->name))
 478                         break;
 479
 480         if (pic)
 481         {
 482                 if (pic->tex && pic->width == width && pic->height == height)
 483                 {
 484                         R_UpdateTexture(pic->tex, pixels_bgra, 0, 0, width, height);
 485                         return pic;
 486                 }
 487         }
 488         else
 489         {
 490                 if (pic == NULL)
 491                 {
 492                         if (numcachepics == MAX_CACHED_PICS)
 493                         {
 494                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
 495                                 // FIXME: support NULL in callers?
 496                                 return cachepics; // return the first one
 497                         }
 498                         pic = cachepics + (numcachepics++);
 499                         strlcpy (pic->name, picname, sizeof(pic->name));
 500                         // link into list
 501                         pic->chain = cachepichash[hashkey];
 502                         cachepichash[hashkey] = pic;
 503                 }
 504         }
 505
 506         pic->width = width;
 507         pic->height = height;
 508         if (pic->tex)
 509                 R_FreeTexture(pic->tex);
 510         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels_bgra, TEXTYPE_BGRA, (alpha ? TEXF_ALPHA : 0) | TEXF_ALLOWUPDATES, NULL);
 511         return pic;
 512 }
 513
 514 void Draw_FreePic(const char *picname)
 515 {
 516         int crc;
 517         int hashkey;
 518         cachepic_t *pic;
 519         // this doesn't really free the pic, but does free it's texture
 520         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 521         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 522         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 523         {
 524                 if (!strcmp (picname, pic->name) && pic->tex)
 525                 {
 526                         R_FreeTexture(pic->tex);
 527                         pic->tex = NULL;
 528                         pic->width = 0;
 529                         pic->height = 0;
 530                         return;
 531                 }
 532         }
 533 }
 534
 535 extern int con_linewidth; // to force rewrapping
 536 static void LoadFont(qboolean override, const char *name, dp_font_t *fnt)
 537 {
 538         int i;
 539         float maxwidth, scale;
 540         char widthfile[MAX_QPATH];
 541         char *widthbuf;
 542         fs_offset_t widthbufsize;
 543
 544         if(override || !fnt->texpath[0])
 545                 strlcpy(fnt->texpath, name, sizeof(fnt->texpath));
 546
 547         if(drawtexturepool == NULL)
 548                 return; // before gl_draw_start, so will be loaded later
 549
 550         if(fnt->ft2)
 551         {
 552                 // clear freetype font
 553                 Font_UnloadFont(fnt->ft2);
 554                 Mem_Free(fnt->ft2);
 555                 fnt->ft2 = NULL;
 556         }
 557
 558         if(fnt->req_face != -1)
 559         {
 560                 if(!Font_LoadFont(fnt->texpath, fnt))
 561                         Con_Printf("Failed to load font-file for '%s', it will not support as many characters.\n", fnt->texpath);
 562         }
 563
 564         fnt->tex = Draw_CachePic_Flags(fnt->texpath, CACHEPICFLAG_QUIET | CACHEPICFLAG_NOCOMPRESSION)->tex;
 565         if(fnt->tex == r_texture_notexture)
 566         {
 567                 fnt->tex = Draw_CachePic_Flags("gfx/conchars", CACHEPICFLAG_NOCOMPRESSION)->tex;
 568                 strlcpy(widthfile, "gfx/conchars.width", sizeof(widthfile));
 569         }
 570         else
 571                 dpsnprintf(widthfile, sizeof(widthfile), "%s.width", fnt->texpath);
 572
 573         // unspecified width == 1 (base width)
 574         for(i = 1; i < 256; ++i)
 575                 fnt->width_of[i] = 1;
 576         scale = 1;
 577
 578         // FIXME load "name.width", if it fails, fill all with 1
 579         if((widthbuf = (char *) FS_LoadFile(widthfile, tempmempool, true, &widthbufsize)))
 580         {
 581                 float extraspacing = 0;
 582                 const char *p = widthbuf;
 583                 int ch = 0;
 584
 585                 while(ch < 256)
 586                 {
 587                         if(!COM_ParseToken_Simple(&p, false, false))
 588                                 return;
 589
 590                         switch(*com_token)
 591                         {
 592                                 case '0':
 593                                 case '1':
 594                                 case '2':
 595                                 case '3':
 596                                 case '4':
 597                                 case '5':
 598                                 case '6':
 599                                 case '7':
 600                                 case '8':
 601                                 case '9':
 602                                 case '+':
 603                                 case '-':
 604                                 case '.':
 605                                         fnt->width_of[ch++] = atof(com_token) + extraspacing;
 606                                         break;
 607                                 default:
 608                                         if(!strcmp(com_token, "extraspacing"))
 609                                         {
 610                                                 if(!COM_ParseToken_Simple(&p, false, false))
 611                                                         return;
 612                                                 extraspacing = atof(com_token);
 613                                         }
 614                                         else if(!strcmp(com_token, "scale"))
 615                                         {
 616                                                 if(!COM_ParseToken_Simple(&p, false, false))
 617                                                         return;
 618                                                 scale = atof(com_token);
 619                                         }
 620                                         else
 621                                         {
 622                                                 Con_Printf("Warning: skipped unknown font property %s\n", com_token);
 623                                                 if(!COM_ParseToken_Simple(&p, false, false))
 624                                                         return;
 625                                         }
 626                                         break;
 627                         }
 628                 }
 629
 630                 Mem_Free(widthbuf);
 631         }
 632
 633         maxwidth = fnt->width_of[1];
 634         for(i = 2; i < 256; ++i)
 635                 maxwidth = max(maxwidth, fnt->width_of[i]);
 636         fnt->maxwidth = maxwidth;
 637
 638         // fix up maxwidth for overlap
 639         fnt->maxwidth *= scale;
 640         fnt->scale = scale;
 641
 642         if(fnt == FONT_CONSOLE)
 643                 con_linewidth = -1; // rewrap console in next frame
 644 }
 645
 646 static dp_font_t *FindFont(const char *title)
 647 {
 648         int i;
 649         for(i = 0; i < MAX_FONTS; ++i)
 650                 if(!strcmp(dp_fonts[i].title, title))
 651                         return &dp_fonts[i];
 652         return NULL;
 653 }
 654
 655 static inline float snap_to_pixel_x(float x, float roundUpAt)
 656 {
 657         float pixelpos = x * vid.width / vid_conwidth.value;
 658         int snap = (int) pixelpos;
 659         if (pixelpos - snap >= roundUpAt) ++snap;
 660         return ((float)snap * vid_conwidth.value / vid.width);
 661         /*
 662         x = (int)(x * vid.width / vid_conwidth.value);
 663         x = (x * vid_conwidth.value / vid.width);
 664         return x;
 665         */
 666 }
 667
 668 static inline float snap_to_pixel_y(float y, float roundUpAt)
 669 {
 670         float pixelpos = y * vid.height / vid_conheight.value;
 671         int snap = (int) pixelpos;
 672         if (pixelpos - snap > roundUpAt) ++snap;
 673         return ((float)snap * vid_conheight.value / vid.height);
 674         /*
 675         y = (int)(y * vid.height / vid_conheight.value);
 676         y = (y * vid_conheight.value / vid.height);
 677         return y;
 678         */
 679 }
 680
 681 static void LoadFont_f(void)
 682 {
 683         dp_font_t *f;
 684         int i, si;
 685         float sz, sn;
 686         const char *filelist, *c, *cm;
 687         char mainfont[MAX_QPATH];
 688
 689         if(Cmd_Argc() < 2)
 690         {
 691                 Con_Printf("Available font commands:\n");
 692                 for(i = 0; i < MAX_FONTS; ++i)
 693                         Con_Printf("  loadfont %s gfx/tgafile[...] [sizes...]\n", dp_fonts[i].title);
 694                 Con_Printf("A font can simply be gfx/tgafile, or alternatively you\n"
 695                            "can specify multiple fonts and faces\n"
 696                            "Like this: gfx/vera-sans:2,gfx/fallback:1\n"
 697                            "to load face 2 of the font gfx/vera-sans and use face 1\n"
 698                            "of gfx/fallback as fallback font.\n"
 699                            "You can also specify a list of font sizes to load, like this:\n"
 700                            "loadfont console gfx/conchars,gfx/fallback 8 12 16 24 32\n"
 701                            "In many cases, 8 12 16 24 32 should be a good choice.\n"
 702                         );
 703                 return;
 704         }
 705         f = FindFont(Cmd_Argv(1));
 706         if(f == NULL)
 707         {
 708                 Con_Printf("font function not found\n");
 709                 return;
 710         }
 711
 712         if(Cmd_Argc() < 3)
 713                 filelist = "gfx/conchars";
 714         else
 715                 filelist = Cmd_Argv(2);
 716
 717         memset(f->fallbacks, 0, sizeof(f->fallbacks));
 718         memset(f->fallback_faces, 0, sizeof(f->fallback_faces));
 719
 720         // first font is handled "normally"
 721         c = strchr(filelist, ':');
 722         cm = strchr(filelist, ',');
 723         if(c && (!cm || c < cm))
 724                 f->req_face = atoi(c+1);
 725         else
 726         {
 727                 f->req_face = 0;
 728                 c = cm;
 729         }
 730
 731         if(!c || (c - filelist) > MAX_QPATH)
 732                 strlcpy(mainfont, filelist, sizeof(mainfont));
 733         else
 734         {
 735                 memcpy(mainfont, filelist, c - filelist);
 736                 mainfont[c - filelist] = 0;
 737         }
 738
 739         for(i = 0; i < MAX_FONT_FALLBACKS; ++i)
 740         {
 741                 c = strchr(filelist, ',');
 742                 if(!c)
 743                         break;
 744                 filelist = c + 1;
 745                 if(!*filelist)
 746                         break;
 747                 c = strchr(filelist, ':');
 748                 cm = strchr(filelist, ',');
 749                 if(c && (!cm || c < cm))
 750                         f->fallback_faces[i] = atoi(c+1);
 751                 else
 752                 {
 753                         f->fallback_faces[i] = 0; // f->req_face; could make it stick to the default-font's face index
 754                         c = cm;
 755                 }
 756                 if(!c || (c-filelist) > MAX_QPATH)
 757                 {
 758                         strlcpy(f->fallbacks[i], filelist, sizeof(mainfont));
 759                 }
 760                 else
 761                 {
 762                         memcpy(f->fallbacks[i], filelist, c - filelist);
 763                         f->fallbacks[i][c - filelist] = 0;
 764                 }
 765         }
 766
 767         // for now: by default load only one size: the default size
 768         f->req_sizes[0] = 0;
 769         for(i = 1; i < MAX_FONT_SIZES; ++i)
 770                 f->req_sizes[i] = -1;
 771
 772         // for some reason this argc is 3 even when using 2 arguments here, maybe nexuiz screws up
 773         if(Cmd_Argc() >= 3)
 774         {
 775                 for(i = 0; i < Cmd_Argc()-3; ++i)
 776                 {
 777                         sz = atof(Cmd_Argv(i+3));
 778                         if (IS_NAN(sz)) // do not use crap sizes
 779                                 continue;
 780                         // now try to scale to our actual size:
 781                         if (vid.width > 0)
 782                                 sn = snap_to_pixel_y(sz, 0.5);
 783                         else
 784                         {
 785                                 sn = sz * vid_height.value / vid_conheight.value;
 786                                 si = (int)sn;
 787                                 if ( sn - (float)si >= 0.5 )
 788                                         ++si;
 789                                 sn = si * vid_conheight.value / vid_height.value;
 790                         }
 791                         if (!IS_NAN(sn))
 792                                 f->req_sizes[i] = sn;
 793                         else
 794                                 f->req_sizes[i] = sz;
 795                 }
 796         }
 797         LoadFont(true, mainfont, f);
 798 }
 799
 800 /*
 801 ===============
 802 Draw_Init
 803 ===============
 804 */
 805 static void gl_draw_start(void)
 806 {
 807         int i;
 808         drawtexturepool = R_AllocTexturePool();
 809
 810         numcachepics = 0;
 811         memset(cachepichash, 0, sizeof(cachepichash));
 812
 813         font_start();
 814
 815         for(i = 0; i < MAX_FONTS; ++i)
 816                 LoadFont(false, va("gfx/font_%s", dp_fonts[i].title), &dp_fonts[i]);
 817
 818         // draw the loading screen so people have something to see in the newly opened window
 819         SCR_UpdateLoadingScreen(true);
 820 }
 821
 822 static void gl_draw_shutdown(void)
 823 {
 824         font_shutdown();
 825
 826         R_FreeTexturePool(&drawtexturepool);
 827
 828         numcachepics = 0;
 829         memset(cachepichash, 0, sizeof(cachepichash));
 830 }
 831
 832 static void gl_draw_newmap(void)
 833 {
 834         font_newmap();
 835 }
 836
 837 void GL_Draw_Init (void)
 838 {
 839         int i, j;
 840         Cvar_RegisterVariable(&r_textshadow);
 841         Cvar_RegisterVariable(&r_textbrightness);
 842         Cvar_RegisterVariable(&r_textcontrast);
 843         Cmd_AddCommand ("loadfont",LoadFont_f, "loadfont function tganame loads a font; example: loadfont console gfx/veramono; loadfont without arguments lists the available functions");
 844         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
 845
 846         strlcpy(FONT_DEFAULT->title, "default", sizeof(FONT_DEFAULT->title));
 847                 strlcpy(FONT_DEFAULT->texpath, "gfx/conchars", sizeof(FONT_DEFAULT->texpath));
 848         strlcpy(FONT_CONSOLE->title, "console", sizeof(FONT_CONSOLE->title));
 849         strlcpy(FONT_SBAR->title, "sbar", sizeof(FONT_SBAR->title));
 850         strlcpy(FONT_NOTIFY->title, "notify", sizeof(FONT_NOTIFY->title));
 851         strlcpy(FONT_CHAT->title, "chat", sizeof(FONT_CHAT->title));
 852         strlcpy(FONT_CENTERPRINT->title, "centerprint", sizeof(FONT_CENTERPRINT->title));
 853         strlcpy(FONT_INFOBAR->title, "infobar", sizeof(FONT_INFOBAR->title));
 854         strlcpy(FONT_MENU->title, "menu", sizeof(FONT_MENU->title));
 855         for(i = 0, j = 0; i < MAX_USERFONTS; ++i)
 856                 if(!FONT_USER[i].title[0])
 857                         dpsnprintf(FONT_USER[i].title, sizeof(FONT_USER[i].title), "user%d", j++);
 858         Font_Init();
 859 }
 860
 861 void _DrawQ_Setup(void)
 862 {
 863         r_viewport_t viewport;
 864         if (r_refdef.draw2dstage)
 865                 return;
 866         r_refdef.draw2dstage = true;
 867         CHECKGLERROR
 868         R_Viewport_InitOrtho(&viewport, &identitymatrix, r_refdef.view.x, vid.height - r_refdef.view.y - r_refdef.view.height, r_refdef.view.width, r_refdef.view.height, 0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100, NULL);
 869         R_SetViewport(&viewport);
 870         GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
 871         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
 872         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
 873         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
 874         R_EntityMatrix(&identitymatrix);
 875
 876         GL_DepthMask(true);
 877         GL_DepthRange(0, 1);
 878         GL_PolygonOffset(0, 0);
 879         GL_DepthTest(false);
 880         GL_Color(1,1,1,1);
 881         GL_AlphaTest(false);
 882         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 883 }
 884
 885 static void _DrawQ_ProcessDrawFlag(int flags)
 886 {
 887         _DrawQ_Setup();
 888         CHECKGLERROR
 889         if(flags == DRAWFLAG_ADDITIVE)
 890                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 891         else if(flags == DRAWFLAG_MODULATE)
 892                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
 893         else if(flags == DRAWFLAG_2XMODULATE)
 894                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
 895         else if(flags == DRAWFLAG_SCREEN)
 896                 GL_BlendFunc(GL_ONE_MINUS_DST_COLOR,GL_ONE);
 897         else
 898                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 899 }
 900
 901 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
 902 {
 903         float floats[20];
 904
 905         _DrawQ_ProcessDrawFlag(flags);
 906         GL_Color(red, green, blue, alpha);
 907
 908         R_Mesh_VertexPointer(floats, 0, 0);
 909         R_Mesh_ColorPointer(NULL, 0, 0);
 910         R_Mesh_ResetTextureState();
 911         if (pic)
 912         {
 913                 if (width == 0)
 914                         width = pic->width;
 915                 if (height == 0)
 916                         height = pic->height;
 917                 R_SetupShader_Generic(Draw_GetPicTexture(pic), NULL, GL_MODULATE, 1);
 918                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
 919
 920 #if 1
 921                 floats[12] = 0.0f;floats[13] = 0.0f;
 922                 floats[14] = 1.0f;floats[15] = 0.0f;
 923                 floats[16] = 1.0f;floats[17] = 1.0f;
 924                 floats[18] = 0.0f;floats[19] = 1.0f;
 925 #else
 926       // AK07: lets be texel correct on the corners
 927       {
 928          float horz_offset = 0.5f / pic->width;
 929          float vert_offset = 0.5f / pic->height;
 930
 931                    floats[12] = 0.0f + horz_offset;floats[13] = 0.0f + vert_offset;
 932                    floats[14] = 1.0f - horz_offset;floats[15] = 0.0f + vert_offset;
 933                    floats[16] = 1.0f - horz_offset;floats[17] = 1.0f - vert_offset;
 934                    floats[18] = 0.0f + horz_offset;floats[19] = 1.0f - vert_offset;
 935       }
 936 #endif
 937         }
 938         else
 939                 R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
 940
 941         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 942         floats[0] = floats[9] = x;
 943         floats[1] = floats[4] = y;
 944         floats[3] = floats[6] = x + width;
 945         floats[7] = floats[10] = y + height;
 946
 947         R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, polygonelement3s, 0, 0);
 948 }
 949
 950 void DrawQ_RotPic(float x, float y, cachepic_t *pic, float width, float height, float org_x, float org_y, float angle, float red, float green, float blue, float alpha, int flags)
 951 {
 952         float floats[20];
 953         float af = DEG2RAD(-angle); // forward
 954         float ar = DEG2RAD(-angle + 90); // right
 955         float sinaf = sin(af);
 956         float cosaf = cos(af);
 957         float sinar = sin(ar);
 958         float cosar = cos(ar);
 959
 960         _DrawQ_ProcessDrawFlag(flags);
 961         GL_Color(red, green, blue, alpha);
 962
 963         R_Mesh_VertexPointer(floats, 0, 0);
 964         R_Mesh_ColorPointer(NULL, 0, 0);
 965         R_Mesh_ResetTextureState();
 966         if (pic)
 967         {
 968                 if (width == 0)
 969                         width = pic->width;
 970                 if (height == 0)
 971                         height = pic->height;
 972                 R_SetupShader_Generic(Draw_GetPicTexture(pic), NULL, GL_MODULATE, 1);
 973                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
 974
 975                 floats[12] = 0.0f;floats[13] = 0.0f;
 976                 floats[14] = 1.0f;floats[15] = 0.0f;
 977                 floats[16] = 1.0f;floats[17] = 1.0f;
 978                 floats[18] = 0.0f;floats[19] = 1.0f;
 979         }
 980         else
 981                 R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
 982
 983         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 984
 985 // top left
 986         floats[0] = x - cosaf*org_x - cosar*org_y;
 987         floats[1] = y - sinaf*org_x - sinar*org_y;
 988
 989 // top right
 990         floats[3] = x + cosaf*(width-org_x) - cosar*org_y;
 991         floats[4] = y + sinaf*(width-org_x) - sinar*org_y;
 992
 993 // bottom right
 994         floats[6] = x + cosaf*(width-org_x) + cosar*(height-org_y);
 995         floats[7] = y + sinaf*(width-org_x) + sinar*(height-org_y);
 996
 997 // bottom left
 998         floats[9]  = x - cosaf*org_x + cosar*(height-org_y);
 999         floats[10] = y - sinaf*org_x + sinar*(height-org_y);
1000
1001         R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, polygonelement3s, 0, 0);
1002 }
1003
1004 void DrawQ_Fill(float x, float y, float width, float height, float red, float green, float blue, float alpha, int flags)
1005 {
1006         float floats[12];
1007
1008         _DrawQ_ProcessDrawFlag(flags);
1009         GL_Color(red, green, blue, alpha);
1010
1011         R_Mesh_VertexPointer(floats, 0, 0);
1012         R_Mesh_ColorPointer(NULL, 0, 0);
1013         R_Mesh_ResetTextureState();
1014         R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
1015
1016         floats[2] = floats[5] = floats[8] = floats[11] = 0;
1017         floats[0] = floats[9] = x;
1018         floats[1] = floats[4] = y;
1019         floats[3] = floats[6] = x + width;
1020         floats[7] = floats[10] = y + height;
1021
1022         R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, polygonelement3s, 0, 0);
1023 }
1024
1025 /// color tag printing
1026 static const vec4_t string_colors[] =
1027 {
1028         // Quake3 colors
1029         // LordHavoc: why on earth is cyan before magenta in Quake3?
1030         // LordHavoc: note: Doom3 uses white for [0] and [7]
1031         {0.0, 0.0, 0.0, 1.0}, // black
1032         {1.0, 0.0, 0.0, 1.0}, // red
1033         {0.0, 1.0, 0.0, 1.0}, // green
1034         {1.0, 1.0, 0.0, 1.0}, // yellow
1035         {0.0, 0.0, 1.0, 1.0}, // blue
1036         {0.0, 1.0, 1.0, 1.0}, // cyan
1037         {1.0, 0.0, 1.0, 1.0}, // magenta
1038         {1.0, 1.0, 1.0, 1.0}, // white
1039         // [515]'s BX_COLOREDTEXT extension
1040         {1.0, 1.0, 1.0, 0.5}, // half transparent
1041         {0.5, 0.5, 0.5, 1.0}  // half brightness
1042         // Black's color table
1043         //{1.0, 1.0, 1.0, 1.0},
1044         //{1.0, 0.0, 0.0, 1.0},
1045         //{0.0, 1.0, 0.0, 1.0},
1046         //{0.0, 0.0, 1.0, 1.0},
1047         //{1.0, 1.0, 0.0, 1.0},
1048         //{0.0, 1.0, 1.0, 1.0},
1049         //{1.0, 0.0, 1.0, 1.0},
1050         //{0.1, 0.1, 0.1, 1.0}
1051 };
1052
1053 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
1054
1055 static void DrawQ_GetTextColor(float color[4], int colorindex, float r, float g, float b, float a, qboolean shadow)
1056 {
1057         float C = r_textcontrast.value;
1058         float B = r_textbrightness.value;
1059         if (colorindex & 0x10000) // that bit means RGB color
1060         {
1061                 color[0] = ((colorindex >> 12) & 0xf) / 15.0;
1062                 color[1] = ((colorindex >> 8) & 0xf) / 15.0;
1063                 color[2] = ((colorindex >> 4) & 0xf) / 15.0;
1064                 color[3] = (colorindex & 0xf) / 15.0;
1065         }
1066         else
1067                 Vector4Copy(string_colors[colorindex], color);
1068         Vector4Set(color, color[0] * r * C + B, color[1] * g * C + B, color[2] * b * C + B, color[3] * a);
1069         if (shadow)
1070         {
1071                 float shadowalpha = (color[0]+color[1]+color[2]) * 0.8;
1072                 Vector4Set(color, 0, 0, 0, color[3] * bound(0, shadowalpha, 1));
1073         }
1074 }
1075
1076 float DrawQ_TextWidth_Font_UntilWidth_TrackColors_Size(const char *text, float w, float h, size_t *maxlen, int *outcolor, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxwidth)
1077 {
1078         int colorindex = STRING_COLOR_DEFAULT;
1079         size_t i;
1080         float x = 0;
1081         Uchar ch, mapch, nextch;
1082         Uchar prevch = 0; // used for kerning
1083         int tempcolorindex;
1084         float kx;
1085         int map_index = 0;
1086         ft2_font_map_t *fontmap = NULL;
1087         ft2_font_map_t *map = NULL;
1088         ft2_font_map_t *prevmap = NULL;
1089         ft2_font_t *ft2 = fnt->ft2;
1090         // float ftbase_x;
1091         qboolean snap = true;
1092
1093         if (!h) h = w;
1094         if (!h) {
1095                 w = h = 1;
1096                 snap = false;
1097         }
1098         // do this in the end
1099         w *= fnt->scale;
1100         h *= fnt->scale;
1101
1102         // find the most fitting size:
1103         if (ft2 != NULL)
1104         {
1105                 if (snap)
1106                         map_index = Font_IndexForSize(ft2, h, &w, &h);
1107                 else
1108                         map_index = Font_IndexForSize(ft2, h, NULL, NULL);
1109                 fontmap = Font_MapForIndex(ft2, map_index);
1110         }
1111
1112         if (*maxlen < 1)
1113                 *maxlen = 1<<30;
1114
1115         if (!outcolor || *outcolor == -1)
1116                 colorindex = STRING_COLOR_DEFAULT;
1117         else
1118                 colorindex = *outcolor;
1119
1120         // maxwidth /= fnt->scale; // w and h are multiplied by it already
1121         // ftbase_x = snap_to_pixel_x(0);
1122
1123         for (i = 0;i < *maxlen && *text;)
1124         {
1125                 nextch = ch = u8_getchar(text, &text);
1126                 //i = text - text_start;
1127                 if (!ch)
1128                         break;
1129                 if (snap)
1130                         x = snap_to_pixel_x(x, 0.4);
1131                 if (ch == ' ' && !fontmap)
1132                 {
1133                         if(x + fnt->width_of[(int) ' '] * w > maxwidth)
1134                                 break; // oops, can't draw this
1135                         x += fnt->width_of[(int) ' '] * w;
1136                         ++i;
1137                         continue;
1138                 }
1139                 if (ch == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < *maxlen)
1140                 {
1141                         ++i;
1142                         ch = *text; // colors are ascii, so no u8_ needed
1143                         if (ch <= '9' && ch >= '0') // ^[0-9] found
1144                         {
1145                                 colorindex = ch - '0';
1146                                 ++text;
1147                                 ++i;
1148                                 continue;
1149                         }
1150                         else if (ch == STRING_COLOR_RGB_TAG_CHAR && i + 3 < *maxlen ) // ^x found
1151                         {
1152                                 // building colorindex...
1153                                 ch = tolower(text[1]);
1154                                 tempcolorindex = 0x10000; // binary: 1,0000,0000,0000,0000
1155                                 if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 12;
1156                                 else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 12;
1157                                 else tempcolorindex = 0;
1158                                 if (tempcolorindex)
1159                                 {
1160                                         ch = tolower(text[2]);
1161                                         if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 8;
1162                                         else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 8;
1163                                         else tempcolorindex = 0;
1164                                         if (tempcolorindex)
1165                                         {
1166                                                 ch = tolower(text[3]);
1167                                                 if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 4;
1168                                                 else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 4;
1169                                                 else tempcolorindex = 0;
1170                                                 if (tempcolorindex)
1171                                                 {
1172                                                         colorindex = tempcolorindex | 0xf;
1173                                                         // ...done! now colorindex has rgba codes (1,rrrr,gggg,bbbb,aaaa)
1174                                                         i+=4;
1175                                                         text += 4;
1176                                                         continue;
1177                                                 }
1178                                         }
1179                                 }
1180                         }
1181                         else if (ch == STRING_COLOR_TAG) // ^^ found, ignore the first ^ and go to print the second
1182                         {
1183                                 i++;
1184                                 text++;
1185                         }
1186                         i--;
1187                 }
1188                 ch = nextch;
1189                 ++i;
1190
1191                 if (!fontmap || (ch <= 0xFF && fontmap->glyphs[ch].image) || (ch >= 0xE000 && ch <= 0xE0FF))
1192                 {
1193                         if (ch > 0xE000)
1194                                 ch -= 0xE000;
1195                         if (ch > 0xFF)
1196                                 continue;
1197                         if (fontmap)
1198                                 map = ft2_oldstyle_map;
1199                         prevch = 0;
1200                         if(x + fnt->width_of[ch] * w > maxwidth)
1201                                 break; // oops, can't draw this
1202                         x += fnt->width_of[ch] * w;
1203                 } else {
1204                         if (!map || map == ft2_oldstyle_map || map->start < ch || map->start + FONT_CHARS_PER_MAP >= ch)
1205                         {
1206                                 map = FontMap_FindForChar(fontmap, ch);
1207                                 if (!map)
1208                                 {
1209                                         if (!Font_LoadMapForIndex(ft2, map_index, ch, &map))
1210                                                 break;
1211                                         if (!map)
1212                                                 break;
1213                                 }
1214                         }
1215                         mapch = ch - map->start;
1216                         if (prevch && Font_GetKerningForMap(ft2, map_index, w, h, prevch, ch, &kx, NULL))
1217                                 x += kx * w;
1218                         x += map->glyphs[mapch].advance_x * w;
1219                         prevmap = map;
1220                         prevch = ch;
1221                 }
1222         }
1223
1224         *maxlen = i;
1225
1226         if (outcolor)
1227                 *outcolor = colorindex;
1228
1229         return x;
1230 }
1231
1232 float DrawQ_String_Font(float startx, float starty, const char *text, size_t maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes, const dp_font_t *fnt)
1233 {
1234         int shadow, colorindex = STRING_COLOR_DEFAULT;
1235         size_t i;
1236         float x = startx, y, s, t, u, v, thisw;
1237         float *av, *at, *ac;
1238         float color[4];
1239         int batchcount;
1240         static float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
1241         static float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
1242         static float color4f[QUADELEMENTS_MAXQUADS*4*4];
1243         Uchar ch, mapch, nextch;
1244         Uchar prevch = 0; // used for kerning
1245         int tempcolorindex;
1246         int map_index = 0;
1247         ft2_font_map_t *prevmap = NULL; // the previous map
1248         ft2_font_map_t *map = NULL;     // the currently used map
1249         ft2_font_map_t *fontmap = NULL; // the font map for the size
1250         float ftbase_y;
1251         const char *text_start = text;
1252         float kx, ky;
1253         ft2_font_t *ft2 = fnt->ft2;
1254         qboolean snap = true;
1255         float pix_x, pix_y;
1256
1257         int tw, th;
1258         tw = R_TextureWidth(fnt->tex);
1259         th = R_TextureHeight(fnt->tex);
1260
1261         if (!h) h = w;
1262         if (!h) {
1263                 h = w = 1;
1264                 snap = false;
1265         }
1266
1267         starty -= (fnt->scale - 1) * h * 0.5; // center
1268         w *= fnt->scale;
1269         h *= fnt->scale;
1270
1271         if (ft2 != NULL)
1272         {
1273                 if (snap)
1274                         map_index = Font_IndexForSize(ft2, h, &w, &h);
1275                 else
1276                         map_index = Font_IndexForSize(ft2, h, NULL, NULL);
1277                 fontmap = Font_MapForIndex(ft2, map_index);
1278         }
1279
1280         // draw the font at its baseline when using freetype
1281         //ftbase_x = 0;
1282         ftbase_y = h * (4.5/6.0);
1283
1284         if (maxlen < 1)
1285                 maxlen = 1<<30;
1286
1287         _DrawQ_ProcessDrawFlag(flags);
1288
1289         R_Mesh_ColorPointer(color4f, 0, 0);
1290         R_Mesh_ResetTextureState();
1291         if (!fontmap)
1292                 R_Mesh_TexBind(0, R_GetTexture(fnt->tex));
1293         R_Mesh_TexCoordPointer(0, 2, texcoord2f, 0, 0);
1294         R_Mesh_VertexPointer(vertex3f, 0, 0);
1295         R_SetupShader_Generic(fnt->tex, NULL, GL_MODULATE, 1);
1296
1297         ac = color4f;
1298         at = texcoord2f;
1299         av = vertex3f;
1300         batchcount = 0;
1301
1302         //ftbase_x = snap_to_pixel_x(ftbase_x);
1303         ftbase_y = snap_to_pixel_y(ftbase_y, 0.3);
1304
1305         pix_x = vid.width / vid_conwidth.value;
1306         pix_y = vid.height / vid_conheight.value;
1307         for (shadow = r_textshadow.value != 0 && basealpha > 0;shadow >= 0;shadow--)
1308         {
1309                 text = text_start;
1310
1311                 if (!outcolor || *outcolor == -1)
1312                         colorindex = STRING_COLOR_DEFAULT;
1313                 else
1314                         colorindex = *outcolor;
1315
1316                 DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow != 0);
1317
1318                 x = startx;
1319                 y = starty;
1320                 /*
1321                 if (shadow)
1322                 {
1323                         x += r_textshadow.value * vid.width / vid_conwidth.value;
1324                         y += r_textshadow.value * vid.height / vid_conheight.value;
1325                 }
1326                 */
1327                 for (i = 0;i < maxlen && *text;)
1328                 {
1329                         nextch = ch = u8_getchar(text, &text);
1330                         //i = text - text_start;
1331                         if (!ch)
1332                                 break;
1333                         if (snap)
1334                         {
1335                                 x = snap_to_pixel_x(x, 0.4);
1336                                 y = snap_to_pixel_y(y, 0.4);
1337                         }
1338                         if (ch == ' ' && !fontmap)
1339                         {
1340                                 x += fnt->width_of[(int) ' '] * w;
1341                                 ++i;
1342                                 continue;
1343                         }
1344                         if (ch == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < maxlen)
1345                         {
1346                                 ++i;
1347                                 ch = *text; // colors are ascii, so no u8_ needed
1348                                 if (ch <= '9' && ch >= '0') // ^[0-9] found
1349                                 {
1350                                         colorindex = ch - '0';
1351                                         DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow != 0);
1352                                         ++text;
1353                                         ++i;
1354                                         continue;
1355                                 }
1356                                 else if (ch == STRING_COLOR_RGB_TAG_CHAR && i+3 < maxlen ) // ^x found
1357                                 {
1358                                         // building colorindex...
1359                                         ch = tolower(text[1]);
1360                                         tempcolorindex = 0x10000; // binary: 1,0000,0000,0000,0000
1361                                         if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 12;
1362                                         else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 12;
1363                                         else tempcolorindex = 0;
1364                                         if (tempcolorindex)
1365                                         {
1366                                                 ch = tolower(text[2]);
1367                                                 if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 8;
1368                                                 else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 8;
1369                                                 else tempcolorindex = 0;
1370                                                 if (tempcolorindex)
1371                                                 {
1372                                                         ch = tolower(text[3]);
1373                                                         if (ch <= '9' && ch >= '0') tempcolorindex |= (ch - '0') << 4;
1374                                                         else if (ch >= 'a' && ch <= 'f') tempcolorindex |= (ch - 87) << 4;
1375                                                         else tempcolorindex = 0;
1376                                                         if (tempcolorindex)
1377                                                         {
1378                                                                 colorindex = tempcolorindex | 0xf;
1379                                                                 // ...done! now colorindex has rgba codes (1,rrrr,gggg,bbbb,aaaa)
1380                                                                 //Con_Printf("^1colorindex:^7 %x\n", colorindex);
1381                                                                 DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow != 0);
1382                                                                 i+=4;
1383                                                                 text+=4;
1384                                                                 continue;
1385                                                         }
1386                                                 }
1387                                         }
1388                                 }
1389                                 else if (ch == STRING_COLOR_TAG)
1390                                 {
1391                                         i++;
1392                                         text++;
1393                                 }
1394                                 i--;
1395                         }
1396                         // get the backup
1397                         ch = nextch;
1398                         ++i;
1399                         // using a value of -1 for the oldstyle map because NULL means uninitialized...
1400                         // this way we don't need to rebind fnt->tex for every old-style character
1401                         // E000..E0FF: emulate old-font characters (to still have smileys and such available)
1402                         if (shadow)
1403                         {
1404                                 x += pix_x * r_textshadow.value;
1405                                 y += pix_y * r_textshadow.value;
1406                         }
1407                         if (!fontmap || (ch <= 0xFF && fontmap->glyphs[ch].image) || (ch >= 0xE000 && ch <= 0xE0FF))
1408                         {
1409                                 if (ch > 0xE000)
1410                                         ch -= 0xE000;
1411                                 if (ch > 0xFF)
1412                                         continue;
1413                                 if (fontmap)
1414                                 {
1415                                         if (map != ft2_oldstyle_map)
1416                                         {
1417                                                 if (batchcount)
1418                                                 {
1419                                                         // switching from freetype to non-freetype rendering
1420                                                         GL_LockArrays(0, batchcount * 4);
1421                                                         R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, quadelement3i, quadelement3s, 0, 0);
1422                                                         GL_LockArrays(0, 0);
1423                                                         batchcount = 0;
1424                                                         ac = color4f;
1425                                                         at = texcoord2f;
1426                                                         av = vertex3f;
1427                                                 }
1428                                                 R_SetupShader_Generic(fnt->tex, NULL, GL_MODULATE, 1);
1429                                                 map = ft2_oldstyle_map;
1430                                         }
1431                                 }
1432                                 prevch = 0;
1433                                 //num = (unsigned char) text[i];
1434                                 //thisw = fnt->width_of[num];
1435                                 thisw = fnt->width_of[ch];
1436                                 // FIXME make these smaller to just include the occupied part of the character for slightly faster rendering
1437                                 s = (ch & 15)*0.0625f + (0.5f / tw);
1438                                 t = (ch >> 4)*0.0625f + (0.5f / th);
1439                                 u = 0.0625f * thisw - (1.0f / tw);
1440                                 v = 0.0625f - (1.0f / th);
1441                                 ac[ 0] = color[0];ac[ 1] = color[1];ac[ 2] = color[2];ac[ 3] = color[3];
1442                                 ac[ 4] = color[0];ac[ 5] = color[1];ac[ 6] = color[2];ac[ 7] = color[3];
1443                                 ac[ 8] = color[0];ac[ 9] = color[1];ac[10] = color[2];ac[11] = color[3];
1444                                 ac[12] = color[0];ac[13] = color[1];ac[14] = color[2];ac[15] = color[3];
1445                                 at[ 0] = s              ; at[ 1] = t    ;
1446                                 at[ 2] = s+u    ; at[ 3] = t    ;
1447                                 at[ 4] = s+u    ; at[ 5] = t+v  ;
1448                                 at[ 6] = s              ; at[ 7] = t+v  ;
1449                                 av[ 0] = x                      ; av[ 1] = y    ; av[ 2] = 10;
1450                                 av[ 3] = x+w*thisw      ; av[ 4] = y    ; av[ 5] = 10;
1451                                 av[ 6] = x+w*thisw      ; av[ 7] = y+h  ; av[ 8] = 10;
1452                                 av[ 9] = x                      ; av[10] = y+h  ; av[11] = 10;
1453                                 ac += 16;
1454                                 at += 8;
1455                                 av += 12;
1456                                 batchcount++;
1457                                 if (batchcount >= QUADELEMENTS_MAXQUADS)
1458                                 {
1459                                         GL_LockArrays(0, batchcount * 4);
1460                                         R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, quadelement3i, quadelement3s, 0, 0);
1461                                         GL_LockArrays(0, 0);
1462                                         batchcount = 0;
1463                                         ac = color4f;
1464                                         at = texcoord2f;
1465                                         av = vertex3f;
1466                                 }
1467                                 x += thisw * w;
1468                         } else {
1469                                 if (!map || map == ft2_oldstyle_map || map->start < ch || map->start + FONT_CHARS_PER_MAP >= ch)
1470                                 {
1471                                         // new charmap - need to render
1472                                         if (batchcount)
1473                                         {
1474                                                 // we need a different character map, render what we currently have:
1475                                                 GL_LockArrays(0, batchcount * 4);
1476                                                 R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, quadelement3i, quadelement3s, 0, 0);
1477                                                 GL_LockArrays(0, 0);
1478                                                 batchcount = 0;
1479                                                 ac = color4f;
1480                                                 at = texcoord2f;
1481                                                 av = vertex3f;
1482                                         }
1483                                         // find the new map
1484                                         map = FontMap_FindForChar(fontmap, ch);
1485                                         if (!map)
1486                                         {
1487                                                 if (!Font_LoadMapForIndex(ft2, map_index, ch, &map))
1488                                                 {
1489                                                         shadow = -1;
1490                                                         break;
1491                                                 }
1492                                                 if (!map)
1493                                                 {
1494                                                         // this shouldn't happen
1495                                                         shadow = -1;
1496                                                         break;
1497                                                 }
1498                                         }
1499                                         R_SetupShader_Generic(map->texture, NULL, GL_MODULATE, 1);
1500                                 }
1501
1502                                 mapch = ch - map->start;
1503                                 thisw = map->glyphs[mapch].advance_x;
1504
1505                                 //x += ftbase_x;
1506                                 y += ftbase_y;
1507                                 if (prevch && Font_GetKerningForMap(ft2, map_index, w, h, prevch, ch, &kx, &ky))
1508                                 {
1509                                         x += kx * w;
1510                                         y += ky * h;
1511                                 }
1512                                 else
1513                                         kx = ky = 0;
1514                                 ac[ 0] = color[0]; ac[ 1] = color[1]; ac[ 2] = color[2]; ac[ 3] = color[3];
1515                                 ac[ 4] = color[0]; ac[ 5] = color[1]; ac[ 6] = color[2]; ac[ 7] = color[3];
1516                                 ac[ 8] = color[0]; ac[ 9] = color[1]; ac[10] = color[2]; ac[11] = color[3];
1517                                 ac[12] = color[0]; ac[13] = color[1]; ac[14] = color[2]; ac[15] = color[3];
1518                                 at[0] = map->glyphs[mapch].txmin; at[1] = map->glyphs[mapch].tymin;
1519                                 at[2] = map->glyphs[mapch].txmax; at[3] = map->glyphs[mapch].tymin;
1520                                 at[4] = map->glyphs[mapch].txmax; at[5] = map->glyphs[mapch].tymax;
1521                                 at[6] = map->glyphs[mapch].txmin; at[7] = map->glyphs[mapch].tymax;
1522                                 av[ 0] = x + w * map->glyphs[mapch].vxmin; av[ 1] = y + h * map->glyphs[mapch].vymin; av[ 2] = 10;
1523                                 av[ 3] = x + w * map->glyphs[mapch].vxmax; av[ 4] = y + h * map->glyphs[mapch].vymin; av[ 5] = 10;
1524                                 av[ 6] = x + w * map->glyphs[mapch].vxmax; av[ 7] = y + h * map->glyphs[mapch].vymax; av[ 8] = 10;
1525                                 av[ 9] = x + w * map->glyphs[mapch].vxmin; av[10] = y + h * map->glyphs[mapch].vymax; av[11] = 10;
1526                                 //x -= ftbase_x;
1527                                 y -= ftbase_y;
1528
1529                                 x += thisw * w;
1530                                 ac += 16;
1531                                 at += 8;
1532                                 av += 12;
1533                                 batchcount++;
1534                                 if (batchcount >= QUADELEMENTS_MAXQUADS)
1535                                 {
1536                                         GL_LockArrays(0, batchcount * 4);
1537                                         R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, quadelement3i, quadelement3s, 0, 0);
1538                                         GL_LockArrays(0, 0);
1539                                         batchcount = 0;
1540                                         ac = color4f;
1541                                         at = texcoord2f;
1542                                         av = vertex3f;
1543                                 }
1544
1545                                 prevmap = map;
1546                                 prevch = ch;
1547                         }
1548                         if (shadow)
1549                         {
1550                                 x -= pix_x * r_textshadow.value;
1551                                 y -= pix_y * r_textshadow.value;
1552                         }
1553                 }
1554         }
1555         if (batchcount > 0)
1556         {
1557                 GL_LockArrays(0, batchcount * 4);
1558                 R_Mesh_Draw(0, batchcount * 4, 0, batchcount * 2, quadelement3i, quadelement3s, 0, 0);
1559                 GL_LockArrays(0, 0);
1560         }
1561
1562         if (outcolor)
1563                 *outcolor = colorindex;
1564
1565         // note: this relies on the proper text (not shadow) being drawn last
1566         return x;
1567 }
1568
1569 float DrawQ_String(float startx, float starty, const char *text, size_t maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes)
1570 {
1571         return DrawQ_String_Font(startx, starty, text, maxlen, w, h, basered, basegreen, baseblue, basealpha, flags, outcolor, ignorecolorcodes, &dp_fonts[0]);
1572 }
1573
1574 float DrawQ_TextWidth_Font(const char *text, size_t maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt)
1575 {
1576         return DrawQ_TextWidth_Font_UntilWidth(text, &maxlen, ignorecolorcodes, fnt, 1000000000);
1577 }
1578
1579 float DrawQ_TextWidth_Font_Size(const char *text, float w, float h, size_t maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt)
1580 {
1581         return DrawQ_TextWidth_Font_UntilWidth_Size(text, w, h, &maxlen, ignorecolorcodes, fnt, 1000000000);
1582 }
1583
1584 float DrawQ_TextWidth_Font_UntilWidth(const char *text, size_t *maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxWidth)
1585 {
1586         return DrawQ_TextWidth_Font_UntilWidth_TrackColors(text, maxlen, NULL, ignorecolorcodes, fnt, maxWidth);
1587 }
1588
1589 float DrawQ_TextWidth_Font_UntilWidth_Size(const char *text, float w, float h, size_t *maxlen, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxWidth)
1590 {
1591         return DrawQ_TextWidth_Font_UntilWidth_TrackColors_Size(text, w, h, maxlen, NULL, ignorecolorcodes, fnt, maxWidth);
1592 }
1593
1594 float DrawQ_TextWidth_Font_UntilWidth_TrackColors(const char *text, size_t *maxlen, int *outcolor, qboolean ignorecolorcodes, const dp_font_t *fnt, float maxwidth)
1595 {
1596         return DrawQ_TextWidth_Font_UntilWidth_TrackColors_Size(text, 0, 0, maxlen, outcolor, ignorecolorcodes, fnt, maxwidth);
1597 }
1598
1599 #if 0
1600 // not used
1601 // no ^xrgb management
1602 static int DrawQ_BuildColoredText(char *output2c, size_t maxoutchars, const char *text, int maxreadchars, qboolean ignorecolorcodes, int *outcolor)
1603 {
1604         int color, numchars = 0;
1605         char *outputend2c = output2c + maxoutchars - 2;
1606         if (!outcolor || *outcolor == -1)
1607                 color = STRING_COLOR_DEFAULT;
1608         else
1609                 color = *outcolor;
1610         if (!maxreadchars)
1611                 maxreadchars = 1<<30;
1612         textend = text + maxreadchars;
1613         while (text != textend && *text)
1614         {
1615                 if (*text == STRING_COLOR_TAG && !ignorecolorcodes && text + 1 != textend)
1616                 {
1617                         if (text[1] == STRING_COLOR_TAG)
1618                                 text++;
1619                         else if (text[1] >= '0' && text[1] <= '9')
1620                         {
1621                                 color = text[1] - '0';
1622                                 text += 2;
1623                                 continue;
1624                         }
1625                 }
1626                 if (output2c >= outputend2c)
1627                         break;
1628                 *output2c++ = *text++;
1629                 *output2c++ = color;
1630                 numchars++;
1631         }
1632         output2c[0] = output2c[1] = 0;
1633         if (outcolor)
1634                 *outcolor = color;
1635         return numchars;
1636 }
1637 #endif
1638
1639 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)
1640 {
1641         float floats[36];
1642
1643         _DrawQ_ProcessDrawFlag(flags);
1644
1645         R_Mesh_VertexPointer(floats, 0, 0);
1646         R_Mesh_ColorPointer(floats + 20, 0, 0);
1647         R_Mesh_ResetTextureState();
1648         if (pic)
1649         {
1650                 if (width == 0)
1651                         width = pic->width;
1652                 if (height == 0)
1653                         height = pic->height;
1654                 R_SetupShader_Generic(Draw_GetPicTexture(pic), NULL, GL_MODULATE, 1);
1655                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
1656                 floats[12] = s1;floats[13] = t1;
1657                 floats[14] = s2;floats[15] = t2;
1658                 floats[16] = s4;floats[17] = t4;
1659                 floats[18] = s3;floats[19] = t3;
1660         }
1661         else
1662                 R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
1663
1664         floats[2] = floats[5] = floats[8] = floats[11] = 0;
1665         floats[0] = floats[9] = x;
1666         floats[1] = floats[4] = y;
1667         floats[3] = floats[6] = x + width;
1668         floats[7] = floats[10] = y + height;
1669         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
1670         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
1671         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
1672         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
1673
1674         R_Mesh_Draw(0, 4, 0, 2, polygonelement3i, polygonelement3s, 0, 0);
1675 }
1676
1677 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
1678 {
1679         _DrawQ_ProcessDrawFlag(flags);
1680
1681         R_Mesh_VertexPointer(mesh->data_vertex3f, 0, 0);
1682         R_Mesh_ColorPointer(mesh->data_color4f, 0, 0);
1683         R_Mesh_ResetTextureState();
1684         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f, 0, 0);
1685         R_SetupShader_Generic(mesh->texture, NULL, GL_MODULATE, 1);
1686
1687         GL_LockArrays(0, mesh->num_vertices);
1688         R_Mesh_Draw(0, mesh->num_vertices, 0, mesh->num_triangles, mesh->data_element3i, mesh->data_element3s, 0, 0);
1689         GL_LockArrays(0, 0);
1690 }
1691
1692 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
1693 {
1694         int num;
1695
1696         _DrawQ_ProcessDrawFlag(flags);
1697
1698         GL_Color(1,1,1,1);
1699         CHECKGLERROR
1700         qglBegin(GL_LINE_LOOP);
1701         for (num = 0;num < mesh->num_vertices;num++)
1702         {
1703                 if (mesh->data_color4f)
1704                         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]);
1705                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
1706         }
1707         qglEnd();
1708         CHECKGLERROR
1709 }
1710
1711 //[515]: this is old, delete
1712 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
1713 {
1714         _DrawQ_ProcessDrawFlag(flags);
1715
1716         R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
1717
1718         CHECKGLERROR
1719         //qglLineWidth(width);CHECKGLERROR
1720
1721         GL_Color(r,g,b,alpha);
1722         CHECKGLERROR
1723         qglBegin(GL_LINES);
1724         qglVertex2f(x1, y1);
1725         qglVertex2f(x2, y2);
1726         qglEnd();
1727         CHECKGLERROR
1728 }
1729
1730 void DrawQ_SetClipArea(float x, float y, float width, float height)
1731 {
1732         int ix, iy, iw, ih;
1733         _DrawQ_Setup();
1734
1735         // We have to convert the con coords into real coords
1736         // OGL uses top to bottom
1737         ix = (int)(0.5 + x * ((float)vid.width / vid_conwidth.integer));
1738         iy = (int)(0.5 + y * ((float) vid.height / vid_conheight.integer));
1739         iw = (int)(width * ((float)vid.width / vid_conwidth.integer));
1740         ih = (int)(height * ((float)vid.height / vid_conheight.integer));
1741         GL_Scissor(ix, vid.height - iy - ih, iw, ih);
1742
1743         GL_ScissorTest(true);
1744 }
1745
1746 void DrawQ_ResetClipArea(void)
1747 {
1748         _DrawQ_Setup();
1749         GL_ScissorTest(false);
1750 }
1751
1752 void DrawQ_Finish(void)
1753 {
1754         r_refdef.draw2dstage = false;
1755 }
1756
1757 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
1758 void R_DrawGamma(void)
1759 {
1760         float c[4];
1761         switch(vid.renderpath)
1762         {
1763         case RENDERPATH_GL20:
1764         case RENDERPATH_CGGL:
1765                 if (vid_usinghwgamma || v_glslgamma.integer)
1766                         return;
1767                 break;
1768         case RENDERPATH_GL13:
1769         case RENDERPATH_GL11:
1770                 if (vid_usinghwgamma)
1771                         return;
1772                 break;
1773         }
1774         // all the blends ignore depth
1775         R_Mesh_VertexPointer(blendvertex3f, 0, 0);
1776         R_Mesh_ColorPointer(NULL, 0, 0);
1777         R_Mesh_ResetTextureState();
1778         R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
1779         GL_DepthMask(true);
1780         GL_DepthRange(0, 1);
1781         GL_PolygonOffset(0, 0);
1782         GL_DepthTest(false);
1783         if (v_color_enable.integer)
1784         {
1785                 c[0] = v_color_white_r.value;
1786                 c[1] = v_color_white_g.value;
1787                 c[2] = v_color_white_b.value;
1788         }
1789         else
1790                 c[0] = c[1] = c[2] = v_contrast.value;
1791         if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
1792         {
1793                 GL_BlendFunc(GL_DST_COLOR, GL_ONE);
1794                 while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
1795                 {
1796                         GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
1797                         R_Mesh_Draw(0, 3, 0, 1, polygonelement3i, polygonelement3s, 0, 0);
1798                         VectorScale(c, 0.5, c);
1799                 }
1800         }
1801         if (v_color_enable.integer)
1802         {
1803                 c[0] = v_color_black_r.value;
1804                 c[1] = v_color_black_g.value;
1805                 c[2] = v_color_black_b.value;
1806         }
1807         else
1808                 c[0] = c[1] = c[2] = v_brightness.value;
1809         if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
1810         {
1811                 GL_BlendFunc(GL_ONE, GL_ONE);
1812                 GL_Color(c[0], c[1], c[2], 1);
1813                 R_Mesh_Draw(0, 3, 0, 1, polygonelement3i, polygonelement3s, 0, 0);
1814         }
1815 }
1816