gl_draw.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "wad.h"
  24
  25 #include "cl_video.h"
  26
  27 cvar_t r_textshadow = {0, "r_textshadow", "0", "draws a shadow on all text to improve readability"};
  28
  29 static rtexture_t *char_texture;
  30 cachepic_t *r_crosshairs[NUMCROSSHAIRS+1];
  31
  32 //=============================================================================
  33 /* Support Routines */
  34
  35 #define FONT_FILESIZE 13468
  36 #define MAX_CACHED_PICS 1024
  37 #define CACHEPICHASHSIZE 256
  38 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
  39 static cachepic_t cachepics[MAX_CACHED_PICS];
  40 static int numcachepics;
  41
  42 static rtexturepool_t *drawtexturepool;
  43
  44 static unsigned char concharimage[FONT_FILESIZE] =
  45 {
  46 #include "lhfont.h"
  47 };
  48
  49 static rtexture_t *draw_generateconchars(void)
  50 {
  51         int i;
  52         unsigned char buffer[65536][4], *data = NULL;
  53         double random;
  54
  55         data = LoadTGA (concharimage, FONT_FILESIZE, 256, 256);
  56 // Gold numbers
  57         for (i = 0;i < 8192;i++)
  58         {
  59                 random = lhrandom (0.0,1.0);
  60                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  61                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  62                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  63                 buffer[i][3] = data[i*4+0];
  64         }
  65 // White chars
  66         for (i = 8192;i < 32768;i++)
  67         {
  68                 random = lhrandom (0.0,1.0);
  69                 buffer[i][0] = 95 + (unsigned char)(random * 64);
  70                 buffer[i][1] = 95 + (unsigned char)(random * 64);
  71                 buffer[i][2] = 95 + (unsigned char)(random * 64);
  72                 buffer[i][3] = data[i*4+0];
  73         }
  74 // Gold numbers
  75         for (i = 32768;i < 40960;i++)
  76         {
  77                 random = lhrandom (0.0,1.0);
  78                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  79                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  80                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  81                 buffer[i][3] = data[i*4+0];
  82         }
  83 // Red chars
  84         for (i = 40960;i < 65536;i++)
  85         {
  86                 random = lhrandom (0.0,1.0);
  87                 buffer[i][0] = 96 + (unsigned char)(random * 64);
  88                 buffer[i][1] = 43 + (unsigned char)(random * 32);
  89                 buffer[i][2] = 27 + (unsigned char)(random * 32);
  90                 buffer[i][3] = data[i*4+0];
  91         }
  92
  93 #if 0
  94         Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
  95 #endif
  96
  97         Mem_Free(data);
  98         return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
  99 }
 100
 101 static char *pointerimage =
 102         "333333332......."
 103         "26777761........"
 104         "2655541........."
 105         "265541.........."
 106         "2654561........."
 107         "26414561........"
 108         "251.14561......."
 109         "21...14561......"
 110         "1.....141......."
 111         ".......1........"
 112         "................"
 113         "................"
 114         "................"
 115         "................"
 116         "................"
 117         "................"
 118 ;
 119
 120 static rtexture_t *draw_generatemousepointer(void)
 121 {
 122         int i;
 123         unsigned char buffer[256][4];
 124         for (i = 0;i < 256;i++)
 125         {
 126                 if (pointerimage[i] == '.')
 127                 {
 128                         buffer[i][0] = 0;
 129                         buffer[i][1] = 0;
 130                         buffer[i][2] = 0;
 131                         buffer[i][3] = 0;
 132                 }
 133                 else
 134                 {
 135                         buffer[i][0] = (pointerimage[i] - '0') * 16;
 136                         buffer[i][1] = (pointerimage[i] - '0') * 16;
 137                         buffer[i][2] = (pointerimage[i] - '0') * 16;
 138                         buffer[i][3] = 255;
 139                 }
 140         }
 141         return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 142 }
 143
 144 static char *crosshairtexdata[NUMCROSSHAIRS] =
 145 {
 146         "................"
 147         "................"
 148         "................"
 149         "...33......33..."
 150         "...355....553..."
 151         "....577..775...."
 152         ".....77..77....."
 153         "................"
 154         "................"
 155         ".....77..77....."
 156         "....577..775...."
 157         "...355....553..."
 158         "...33......33..."
 159         "................"
 160         "................"
 161         "................"
 162         ,
 163         "................"
 164         "................"
 165         "................"
 166         "...3........3..."
 167         "....5......5...."
 168         ".....7....7....."
 169         "......7..7......"
 170         "................"
 171         "................"
 172         "......7..7......"
 173         ".....7....7....."
 174         "....5......5...."
 175         "...3........3..."
 176         "................"
 177         "................"
 178         "................"
 179         ,
 180         "................"
 181         ".......77......."
 182         ".......77......."
 183         "................"
 184         "................"
 185         ".......44......."
 186         ".......44......."
 187         ".77..44..44..77."
 188         ".77..44..44..77."
 189         ".......44......."
 190         ".......44......."
 191         "................"
 192         "................"
 193         ".......77......."
 194         ".......77......."
 195         "................"
 196         ,
 197         "................"
 198         "................"
 199         "................"
 200         "................"
 201         "................"
 202         "................"
 203         "................"
 204         "................"
 205         "........7777777."
 206         "........752....."
 207         "........72......"
 208         "........7......."
 209         "........7......."
 210         "........7......."
 211         "........7......."
 212         "................"
 213         ,
 214         "................"
 215         "................"
 216         "................"
 217         "................"
 218         "................"
 219         "........7......."
 220         "................"
 221         "........4......."
 222         ".....7.4.4.7...."
 223         "........4......."
 224         "................"
 225         "........7......."
 226         "................"
 227         "................"
 228         "................"
 229         "................"
 230         ,
 231         "................"
 232         "................"
 233         "................"
 234         "................"
 235         "................"
 236         "................"
 237         "................"
 238         ".......55......."
 239         ".......55......."
 240         "................"
 241         "................"
 242         "................"
 243         "................"
 244         "................"
 245         "................"
 246         "................"
 247 };
 248
 249 static rtexture_t *draw_generatecrosshair(int num)
 250 {
 251         int i;
 252         char *in;
 253         unsigned char data[16*16][4];
 254         in = crosshairtexdata[num];
 255         for (i = 0;i < 16*16;i++)
 256         {
 257                 if (in[i] == '.')
 258                 {
 259                         data[i][0] = 255;
 260                         data[i][1] = 255;
 261                         data[i][2] = 255;
 262                         data[i][3] = 0;
 263                 }
 264                 else
 265                 {
 266                         data[i][0] = 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
 516 static void gl_draw_shutdown(void)
 517 {
 518         R_FreeTexturePool(&drawtexturepool);
 519
 520         numcachepics = 0;
 521         memset(cachepichash, 0, sizeof(cachepichash));
 522 }
 523
 524 static void gl_draw_newmap(void)
 525 {
 526 }
 527
 528 void GL_Draw_Init (void)
 529 {
 530         Cvar_RegisterVariable(&r_textshadow);
 531         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
 532 }
 533
 534 static void _DrawQ_Setup(void)
 535 {
 536         if (r_refdef.draw2dstage)
 537                 return;
 538         r_refdef.draw2dstage = true;
 539         CHECKGLERROR
 540         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
 541         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
 542         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
 543         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
 544         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
 545         R_Mesh_Matrix(&identitymatrix);
 546
 547         GL_DepthMask(true);
 548         GL_DepthTest(false);
 549         GL_Color(1,1,1,1);
 550         GL_AlphaTest(false);
 551         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 552
 553         if (gl_support_fragment_shader)
 554         {
 555                 qglUseProgramObjectARB(0);CHECKGLERROR
 556         }
 557 }
 558
 559 static void _DrawQ_ProcessDrawFlag(int flags)
 560 {
 561         _DrawQ_Setup();
 562         CHECKGLERROR
 563         if(flags == DRAWFLAG_ADDITIVE)
 564                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 565         else if(flags == DRAWFLAG_MODULATE)
 566                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
 567         else if(flags == DRAWFLAG_2XMODULATE)
 568                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
 569         else
 570                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 571 }
 572
 573 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
 574 {
 575         DrawQ_SuperPic(x,y,pic,width,height,0,0,red,green,blue,alpha,1,0,red,green,blue,alpha,0,1,red,green,blue,alpha,1,1,red,green,blue,alpha,flags);
 576 }
 577
 578 void DrawQ_String_Real(float x, float y, const char *string, int maxlen, float w, float h, float red, float green, float blue, float alpha, int flags)
 579 {
 580         int i, num;
 581         float *av, *at;
 582         int batchcount;
 583         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
 584         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
 585
 586         if (alpha < (1.0f / 255.0f))
 587                 return;
 588
 589         _DrawQ_ProcessDrawFlag(flags);
 590
 591         GL_Color(red, green, blue, alpha);
 592
 593         R_Mesh_VertexPointer(vertex3f);
 594         R_Mesh_ColorPointer(NULL);
 595         R_Mesh_ResetTextureState();
 596         R_Mesh_TexBind(0, R_GetTexture(char_texture));
 597         R_Mesh_TexCoordPointer(0, 2, texcoord2f);
 598
 599         at = texcoord2f;
 600         av = vertex3f;
 601         batchcount = 0;
 602
 603         if (maxlen < 1)
 604                 maxlen = 9999;
 605         for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
 606         {
 607                 float s, t, u, v;
 608                 if (num == ' ')
 609                         continue;
 610                 s = (num & 15)*0.0625f + (0.5f / 256.0f);
 611                 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
 612                 u = 0.0625f - (1.0f / 256.0f);
 613                 v = 0.0625f - (1.0f / 256.0f);
 614                 at[ 0] = s  ;at[ 1] = t  ;
 615                 at[ 2] = s+u;at[ 3] = t  ;
 616                 at[ 4] = s+u;at[ 5] = t+v;
 617                 at[ 6] = s  ;at[ 7] = t+v;
 618                 av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
 619                 av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
 620                 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
 621                 av[ 9] = x  ;av[10] = y+h;av[11] = 10;
 622                 at += 8;
 623                 av += 12;
 624                 batchcount++;
 625                 if (batchcount >= QUADELEMENTS_MAXQUADS)
 626                 {
 627                         GL_LockArrays(0, batchcount * 4);
 628                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
 629                         GL_LockArrays(0, 0);
 630                         batchcount = 0;
 631                         at = texcoord2f;
 632                         av = vertex3f;
 633                 }
 634         }
 635         if (batchcount > 0)
 636         {
 637                 GL_LockArrays(0, batchcount * 4);
 638                 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
 639                 GL_LockArrays(0, 0);
 640         }
 641 }
 642
 643 void DrawQ_String(float x, float y, const char *string, int maxlen, float scalex, float scaley, float red, float green, float blue, float alpha, int flags)
 644 {
 645         if (r_textshadow.integer)
 646                 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,0,0,0,alpha*0.8,flags);
 647
 648         DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
 649 }
 650
 651 // color tag printing
 652 static vec4_t string_colors[] =
 653 {
 654         // Quake3 colors
 655         // LordHavoc: why on earth is cyan before magenta in Quake3?
 656         // LordHavoc: note: Doom3 uses white for [0] and [7]
 657         {0.0, 0.0, 0.0, 1.0}, // black
 658         {1.0, 0.0, 0.0, 1.0}, // red
 659         {0.0, 1.0, 0.0, 1.0}, // green
 660         {1.0, 1.0, 0.0, 1.0}, // yellow
 661         {0.0, 0.0, 1.0, 1.0}, // blue
 662         {0.0, 1.0, 1.0, 1.0}, // cyan
 663         {1.0, 0.0, 1.0, 1.0}, // magenta
 664         {1.0, 1.0, 1.0, 1.0}, // white
 665         // [515]'s BX_COLOREDTEXT extension
 666         {1.0, 1.0, 1.0, 0.5}, // half transparent
 667         {0.5, 0.5, 0.5, 1.0}  // half brightness
 668         // Black's color table
 669         //{1.0, 1.0, 1.0, 1.0},
 670         //{1.0, 0.0, 0.0, 1.0},
 671         //{0.0, 1.0, 0.0, 1.0},
 672         //{0.0, 0.0, 1.0, 1.0},
 673         //{1.0, 1.0, 0.0, 1.0},
 674         //{0.0, 1.0, 1.0, 1.0},
 675         //{1.0, 0.0, 1.0, 1.0},
 676         //{0.1, 0.1, 0.1, 1.0}
 677 };
 678
 679 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
 680
 681 // color is read and changed in the end
 682 void DrawQ_ColoredString( float x, float y, const char *text, int maxlen, float scalex, float scaley, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor )
 683 {
 684         vec_t *color;
 685         int len;
 686         int colorindex;
 687         const char *start, *current;
 688
 689         if( !outcolor || *outcolor == -1 ) {
 690                 colorindex = STRING_COLOR_DEFAULT;
 691         } else {
 692                 colorindex = *outcolor;
 693         }
 694         color = string_colors[colorindex];
 695
 696         if( maxlen < 1)
 697                 len = (int)strlen( text );
 698         else
 699                 len = min( maxlen, (int) strlen( text ) );
 700
 701         start = current = text;
 702         while( len > 0 ) {
 703                 // check for color control char
 704                 if( *current == STRING_COLOR_TAG ) {
 705                         // get next char
 706                         current++;
 707                         len--;
 708                         if( len == 0 ) {
 709                                 break;
 710                         }
 711                         // display the tag char?
 712                         if( *current == STRING_COLOR_TAG ) {
 713                                 // only display one of the two
 714                                 start = current;
 715                                 // get the next char
 716                                 current++;
 717                                 len--;
 718                         } else if( '0' <= *current && *current <= '9' ) {
 719                                 colorindex = 0;
 720                                 do {
 721                                         colorindex = colorindex * 10 + (*current - '0');
 722                                         // only read as long as it makes a valid index
 723                                         if( colorindex >= (int)STRING_COLORS_COUNT ) {
 724                                                 // undo the last operation
 725                                                 colorindex /= 10;
 726                                                 break;
 727                                         }
 728                                         current++;
 729                                         len--;
 730                                 } while( len > 0 && '0' <= *current && *current <= '9' );
 731                                 // set the color
 732                                 color = string_colors[colorindex];
 733                                 // we jump over the color tag
 734                                 start = current;
 735                         }
 736                 }
 737                 // go on and read normal text in until the next control char
 738                 while( len > 0 && *current != STRING_COLOR_TAG ) {
 739                         current++;
 740                         len--;
 741                 }
 742                 // display the text
 743                 if( start != current ) {
 744                         // draw the string
 745                         DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
 746                         // update x to be at the new start position
 747                         x += (current - start) * scalex;
 748                         // set start accordingly
 749                         start = current;
 750                 }
 751         }
 752
 753         // return the last colorindex
 754         if( outcolor ) {
 755                 *outcolor = colorindex;
 756         }
 757 }
 758
 759 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)
 760 {
 761         float floats[36];
 762
 763         _DrawQ_ProcessDrawFlag(flags);
 764
 765         R_Mesh_VertexPointer(floats);
 766         R_Mesh_ColorPointer(floats + 20);
 767         R_Mesh_ResetTextureState();
 768         if (pic)
 769         {
 770                 if (width == 0)
 771                         width = pic->width;
 772                 if (height == 0)
 773                         height = pic->height;
 774                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
 775                 R_Mesh_TexCoordPointer(0, 2, floats + 12);
 776                 floats[12] = s1;floats[13] = t1;
 777                 floats[14] = s2;floats[15] = t2;
 778                 floats[16] = s4;floats[17] = t4;
 779                 floats[18] = s3;floats[19] = t3;
 780         }
 781
 782         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 783         floats[0] = floats[9] = x;
 784         floats[1] = floats[4] = y;
 785         floats[3] = floats[6] = x + width;
 786         floats[7] = floats[10] = y + height;
 787         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
 788         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
 789         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
 790         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
 791
 792         R_Mesh_Draw(0, 4, 2, polygonelements);
 793 }
 794
 795 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
 796 {
 797         _DrawQ_ProcessDrawFlag(flags);
 798
 799         R_Mesh_VertexPointer(mesh->data_vertex3f);
 800         R_Mesh_ColorPointer(mesh->data_color4f);
 801         R_Mesh_ResetTextureState();
 802         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
 803         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f);
 804
 805         GL_LockArrays(0, mesh->num_vertices);
 806         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 807         GL_LockArrays(0, 0);
 808 }
 809
 810 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
 811 {
 812         int num;
 813
 814         _DrawQ_ProcessDrawFlag(flags);
 815
 816         GL_Color(1,1,1,1);
 817         CHECKGLERROR
 818         qglBegin(GL_LINE_LOOP);
 819         for (num = 0;num < mesh->num_vertices;num++)
 820         {
 821                 if (mesh->data_color4f)
 822                         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]);
 823                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
 824         }
 825         qglEnd();
 826         CHECKGLERROR
 827 }
 828
 829 //[515]: this is old, delete
 830 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
 831 {
 832         _DrawQ_ProcessDrawFlag(flags);
 833
 834         CHECKGLERROR
 835         qglLineWidth(width);CHECKGLERROR
 836
 837         GL_Color(r,g,b,alpha);
 838         CHECKGLERROR
 839         qglBegin(GL_LINES);
 840         qglVertex2f(x1, y1);
 841         qglVertex2f(x2, y2);
 842         qglEnd();
 843         CHECKGLERROR
 844 }
 845
 846 void DrawQ_SetClipArea(float x, float y, float width, float height)
 847 {
 848         _DrawQ_Setup();
 849
 850         // We have to convert the con coords into real coords
 851         // OGL uses top to bottom
 852         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)));
 853
 854         GL_ScissorTest(true);
 855 }
 856
 857 void DrawQ_ResetClipArea(void)
 858 {
 859         _DrawQ_Setup();
 860         GL_ScissorTest(false);
 861 }
 862
 863 void DrawQ_Finish(void)
 864 {
 865         r_refdef.draw2dstage = false;
 866 }
 867
 868 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
 869 void R_DrawGamma(void)
 870 {
 871         float c[4];
 872         if (!vid_usinghwgamma)
 873         {
 874                 // all the blends ignore depth
 875                 R_Mesh_VertexPointer(blendvertex3f);
 876                 R_Mesh_ColorPointer(NULL);
 877                 R_Mesh_ResetTextureState();
 878                 GL_DepthMask(true);
 879                 GL_DepthTest(false);
 880                 if (v_color_enable.integer)
 881                 {
 882                         c[0] = v_color_white_r.value;
 883                         c[1] = v_color_white_g.value;
 884                         c[2] = v_color_white_b.value;
 885                 }
 886                 else
 887                         c[0] = c[1] = c[2] = v_contrast.value;
 888                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 889                 {
 890                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
 891                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 892                         {
 893                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
 894                                 R_Mesh_Draw(0, 3, 1, polygonelements);
 895                                 VectorScale(c, 0.5, c);
 896                         }
 897                 }
 898                 if (v_color_enable.integer)
 899                 {
 900                         c[0] = v_color_black_r.value;
 901                         c[1] = v_color_black_g.value;
 902                         c[2] = v_color_black_b.value;
 903                 }
 904                 else
 905                         c[0] = c[1] = c[2] = v_brightness.value;
 906                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
 907                 {
 908                         GL_BlendFunc(GL_ONE, GL_ONE);
 909                         GL_Color(c[0], c[1], c[2], 1);
 910                         R_Mesh_Draw(0, 3, 1, polygonelements);
 911                 }
 912         }
 913 }
 914