gl_draw.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "wad.h"
  24
  25 #include "cl_video.h"
  26
  27 cvar_t r_textshadow = {CVAR_SAVE, "r_textshadow", "0", "draws a shadow on all text to improve readability"};
  28
  29 static rtexture_t *char_texture;
  30 cachepic_t *r_crosshairs[NUMCROSSHAIRS+1];
  31
  32 //=============================================================================
  33 /* Support Routines */
  34
  35 #define FONT_FILESIZE 13468
  36 #define MAX_CACHED_PICS 1024
  37 #define CACHEPICHASHSIZE 256
  38 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
  39 static cachepic_t cachepics[MAX_CACHED_PICS];
  40 static int numcachepics;
  41
  42 static rtexturepool_t *drawtexturepool;
  43
  44 static unsigned char concharimage[FONT_FILESIZE] =
  45 {
  46 #include "lhfont.h"
  47 };
  48
  49 static rtexture_t *draw_generateconchars(void)
  50 {
  51         int i;
  52         unsigned char buffer[65536][4], *data = NULL;
  53         double random;
  54
  55         data = LoadTGA (concharimage, FONT_FILESIZE, 256, 256);
  56 // Gold numbers
  57         for (i = 0;i < 8192;i++)
  58         {
  59                 random = lhrandom (0.0,1.0);
  60                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  61                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  62                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  63                 buffer[i][3] = data[i*4+0];
  64         }
  65 // White chars
  66         for (i = 8192;i < 32768;i++)
  67         {
  68                 random = lhrandom (0.0,1.0);
  69                 buffer[i][0] = 95 + (unsigned char)(random * 64);
  70                 buffer[i][1] = 95 + (unsigned char)(random * 64);
  71                 buffer[i][2] = 95 + (unsigned char)(random * 64);
  72                 buffer[i][3] = data[i*4+0];
  73         }
  74 // Gold numbers
  75         for (i = 32768;i < 40960;i++)
  76         {
  77                 random = lhrandom (0.0,1.0);
  78                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  79                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  80                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  81                 buffer[i][3] = data[i*4+0];
  82         }
  83 // Red chars
  84         for (i = 40960;i < 65536;i++)
  85         {
  86                 random = lhrandom (0.0,1.0);
  87                 buffer[i][0] = 96 + (unsigned char)(random * 64);
  88                 buffer[i][1] = 43 + (unsigned char)(random * 32);
  89                 buffer[i][2] = 27 + (unsigned char)(random * 32);
  90                 buffer[i][3] = data[i*4+0];
  91         }
  92
  93 #if 0
  94         Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
  95 #endif
  96
  97         Mem_Free(data);
  98         return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
  99 }
 100
 101 static char *pointerimage =
 102         "333333332......."
 103         "26777761........"
 104         "2655541........."
 105         "265541.........."
 106         "2654561........."
 107         "26414561........"
 108         "251.14561......."
 109         "21...14561......"
 110         "1.....141......."
 111         ".......1........"
 112         "................"
 113         "................"
 114         "................"
 115         "................"
 116         "................"
 117         "................"
 118 ;
 119
 120 static rtexture_t *draw_generatemousepointer(void)
 121 {
 122         int i;
 123         unsigned char buffer[256][4];
 124         for (i = 0;i < 256;i++)
 125         {
 126                 if (pointerimage[i] == '.')
 127                 {
 128                         buffer[i][0] = 0;
 129                         buffer[i][1] = 0;
 130                         buffer[i][2] = 0;
 131                         buffer[i][3] = 0;
 132                 }
 133                 else
 134                 {
 135                         buffer[i][0] = (pointerimage[i] - '0') * 16;
 136                         buffer[i][1] = (pointerimage[i] - '0') * 16;
 137                         buffer[i][2] = (pointerimage[i] - '0') * 16;
 138                         buffer[i][3] = 255;
 139                 }
 140         }
 141         return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 142 }
 143
 144 static char *crosshairtexdata[NUMCROSSHAIRS] =
 145 {
 146         "................"
 147         "................"
 148         "................"
 149         "...33......33..."
 150         "...355....553..."
 151         "....577..775...."
 152         ".....77..77....."
 153         "................"
 154         "................"
 155         ".....77..77....."
 156         "....577..775...."
 157         "...355....553..."
 158         "...33......33..."
 159         "................"
 160         "................"
 161         "................"
 162         ,
 163         "................"
 164         "................"
 165         "................"
 166         "...3........3..."
 167         "....5......5...."
 168         ".....7....7....."
 169         "......7..7......"
 170         "................"
 171         "................"
 172         "......7..7......"
 173         ".....7....7....."
 174         "....5......5...."
 175         "...3........3..."
 176         "................"
 177         "................"
 178         "................"
 179         ,
 180         "................"
 181         ".......77......."
 182         ".......77......."
 183         "................"
 184         "................"
 185         ".......44......."
 186         ".......44......."
 187         ".77..44..44..77."
 188         ".77..44..44..77."
 189         ".......44......."
 190         ".......44......."
 191         "................"
 192         "................"
 193         ".......77......."
 194         ".......77......."
 195         "................"
 196         ,
 197         "................"
 198         "................"
 199         "................"
 200         "................"
 201         "................"
 202         "................"
 203         "................"
 204         "................"
 205         "........7777777."
 206         "........752....."
 207         "........72......"
 208         "........7......."
 209         "........7......."
 210         "........7......."
 211         "........7......."
 212         "................"
 213         ,
 214         "................"
 215         "................"
 216         "................"
 217         "................"
 218         "................"
 219         "........7......."
 220         "................"
 221         "........4......."
 222         ".....7.4.4.7...."
 223         "........4......."
 224         "................"
 225         "........7......."
 226         "................"
 227         "................"
 228         "................"
 229         "................"
 230         ,
 231         "................"
 232         "................"
 233         "................"
 234         "................"
 235         "................"
 236         "................"
 237         "................"
 238         ".......55......."
 239         ".......55......."
 240         "................"
 241         "................"
 242         "................"
 243         "................"
 244         "................"
 245         "................"
 246         "................"
 247 };
 248
 249 static rtexture_t *draw_generatecrosshair(int num)
 250 {
 251         int i;
 252         char *in;
 253         unsigned char data[16*16][4];
 254         in = crosshairtexdata[num];
 255         for (i = 0;i < 16*16;i++)
 256         {
 257                 if (in[i] == '.')
 258                 {
 259                         data[i][0] = 255;
 260                         data[i][1] = 255;
 261                         data[i][2] = 255;
 262                         data[i][3] = 0;
 263                 }
 264                 else
 265                 {
 266                         data[i][0] = data[i][1] = data[i][2] = (unsigned char) ((int) (in[i] - '0') * 127 / 7 + 128);
 267                         data[i][3] = 255;
 268                 }
 269         }
 270         return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num+1), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 271 }
 272
 273 static rtexture_t *draw_generateditherpattern(void)
 274 {
 275 #if 1
 276         int x, y;
 277         unsigned char data[8*8*4];
 278         for (y = 0;y < 8;y++)
 279         {
 280                 for (x = 0;x < 8;x++)
 281                 {
 282                         data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
 283                         data[(y*8+x)*4+3] = 255;
 284                 }
 285         }
 286         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
 287 #else
 288         unsigned char data[16];
 289         memset(data, 255, sizeof(data));
 290         data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
 291         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
 292 #endif
 293 }
 294
 295 /*
 296 ================
 297 Draw_CachePic
 298 ================
 299 */
 300 // FIXME: move this to client somehow
 301 cachepic_t      *Draw_CachePic (const char *path, qboolean persistent)
 302 {
 303         int crc, hashkey;
 304         cachepic_t *pic;
 305         int flags;
 306         fs_offset_t lmpsize;
 307         unsigned char *lmpdata;
 308         char lmpname[MAX_QPATH];
 309
 310         if (!strncmp(CLVIDEOPREFIX, path, sizeof(CLVIDEOPREFIX) - 1))
 311         {
 312                 clvideo_t *video;
 313
 314                 video = CL_GetVideoByName(path);
 315                 if( video )
 316                         return &video->cpif;
 317         }
 318
 319         crc = CRC_Block((unsigned char *)path, strlen(path));
 320         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 321         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 322                 if (!strcmp (path, pic->name))
 323                         return pic;
 324
 325         if (numcachepics == MAX_CACHED_PICS)
 326         {
 327                 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
 328                 // FIXME: support NULL in callers?
 329                 return cachepics; // return the first one
 330         }
 331         pic = cachepics + (numcachepics++);
 332         strlcpy (pic->name, path, sizeof(pic->name));
 333         // link into list
 334         pic->chain = cachepichash[hashkey];
 335         cachepichash[hashkey] = pic;
 336
 337         flags = TEXF_ALPHA;
 338         if (persistent)
 339                 flags |= TEXF_PRECACHE;
 340         if (!strcmp(path, "gfx/colorcontrol/ditherpattern"))
 341                 flags |= TEXF_CLAMP;
 342
 343         // load a high quality image from disk if possible
 344         pic->tex = loadtextureimage(drawtexturepool, path, 0, 0, false, flags);
 345         if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
 346         {
 347                 // compatibility with older versions which did not require gfx/ prefix
 348                 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
 349         }
 350         // if a high quality image was loaded, set the pic's size to match it, just
 351         // in case there's no low quality version to get the size from
 352         if (pic->tex)
 353         {
 354                 pic->width = R_TextureWidth(pic->tex);
 355                 pic->height = R_TextureHeight(pic->tex);
 356         }
 357
 358         // now read the low quality version (wad or lmp file), and take the pic
 359         // size from that even if we don't upload the texture, this way the pics
 360         // show up the right size in the menu even if they were replaced with
 361         // higher or lower resolution versions
 362         dpsnprintf(lmpname, sizeof(lmpname), "%s.lmp", path);
 363         if (!strncmp(path, "gfx/", 4) && (lmpdata = FS_LoadFile(lmpname, tempmempool, false, &lmpsize)))
 364         {
 365                 if (lmpsize >= 9)
 366                 {
 367                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 368                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 369                         // if no high quality replacement image was found, upload the original low quality texture
 370                         if (!pic->tex)
 371                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
 372                 }
 373                 Mem_Free(lmpdata);
 374         }
 375         else if ((lmpdata = W_GetLumpName (path + 4)))
 376         {
 377                 if (!strcmp(path, "gfx/conchars"))
 378                 {
 379                         // conchars is a raw image and with color 0 as transparent instead of 255
 380                         pic->width = 128;
 381                         pic->height = 128;
 382                         // if no high quality replacement image was found, upload the original low quality texture
 383                         if (!pic->tex)
 384                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, lmpdata, TEXTYPE_PALETTE, flags, palette_font);
 385                 }
 386                 else
 387                 {
 388                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 389                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 390                         // if no high quality replacement image was found, upload the original low quality texture
 391                         if (!pic->tex)
 392                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
 393                 }
 394         }
 395
 396         // if it's not found on disk, check if it's one of the builtin images
 397         if (pic->tex == NULL)
 398         {
 399                 if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
 400                         pic->tex = draw_generateconchars();
 401                 if (pic->tex == NULL && !strcmp(path, "ui/mousepointer"))
 402                         pic->tex = draw_generatemousepointer();
 403                 if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001"))
 404                         pic->tex = draw_generatemousepointer();
 405                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1"))
 406                         pic->tex = draw_generatecrosshair(0);
 407                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2"))
 408                         pic->tex = draw_generatecrosshair(1);
 409                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3"))
 410                         pic->tex = draw_generatecrosshair(2);
 411                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4"))
 412                         pic->tex = draw_generatecrosshair(3);
 413                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5"))
 414                         pic->tex = draw_generatecrosshair(4);
 415                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair6"))
 416                         pic->tex = draw_generatecrosshair(5);
 417                 if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern"))
 418                         pic->tex = draw_generateditherpattern();
 419                 if (pic->tex == NULL)
 420                 {
 421                         // don't complain about missing gfx/crosshair images
 422                         if (strncmp(path, "gfx/crosshair", 13))
 423                                 Con_Printf("Draw_CachePic: failed to load %s\n", path);
 424                         pic->tex = r_texture_notexture;
 425                 }
 426                 pic->width = R_TextureWidth(pic->tex);
 427                 pic->height = R_TextureHeight(pic->tex);
 428         }
 429
 430         return pic;
 431 }
 432
 433 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels)
 434 {
 435         int crc, hashkey;
 436         cachepic_t *pic;
 437
 438         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 439         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 440         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 441                 if (!strcmp (picname, pic->name))
 442                         break;
 443
 444         if (pic)
 445         {
 446                 if (pic->tex && pic->width == width && pic->height == height)
 447                 {
 448                         R_UpdateTexture(pic->tex, pixels, 0, 0, width, height);
 449                         return pic;
 450                 }
 451         }
 452         else
 453         {
 454                 if (pic == NULL)
 455                 {
 456                         if (numcachepics == MAX_CACHED_PICS)
 457                         {
 458                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
 459                                 // FIXME: support NULL in callers?
 460                                 return cachepics; // return the first one
 461                         }
 462                         pic = cachepics + (numcachepics++);
 463                         strlcpy (pic->name, picname, sizeof(pic->name));
 464                         // link into list
 465                         pic->chain = cachepichash[hashkey];
 466                         cachepichash[hashkey] = pic;
 467                 }
 468         }
 469
 470         pic->width = width;
 471         pic->height = height;
 472         if (pic->tex)
 473                 R_FreeTexture(pic->tex);
 474         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
 475         return pic;
 476 }
 477
 478 void Draw_FreePic(const char *picname)
 479 {
 480         int crc;
 481         int hashkey;
 482         cachepic_t *pic;
 483         // this doesn't really free the pic, but does free it's texture
 484         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 485         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 486         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 487         {
 488                 if (!strcmp (picname, pic->name) && pic->tex)
 489                 {
 490                         R_FreeTexture(pic->tex);
 491                         pic->width = 0;
 492                         pic->height = 0;
 493                         return;
 494                 }
 495         }
 496 }
 497
 498 /*
 499 ===============
 500 Draw_Init
 501 ===============
 502 */
 503 static void gl_draw_start(void)
 504 {
 505         int i;
 506         drawtexturepool = R_AllocTexturePool();
 507
 508         numcachepics = 0;
 509         memset(cachepichash, 0, sizeof(cachepichash));
 510
 511         char_texture = Draw_CachePic("gfx/conchars", true)->tex;
 512         for (i = 1;i <= NUMCROSSHAIRS;i++)
 513                 r_crosshairs[i] = Draw_CachePic(va("gfx/crosshair%i", i), true);
 514
 515         // draw the loading screen so people have something to see in the newly opened window
 516         SCR_UpdateLoadingScreen(true);
 517 }
 518
 519 static void gl_draw_shutdown(void)
 520 {
 521         R_FreeTexturePool(&drawtexturepool);
 522
 523         numcachepics = 0;
 524         memset(cachepichash, 0, sizeof(cachepichash));
 525 }
 526
 527 static void gl_draw_newmap(void)
 528 {
 529 }
 530
 531 void GL_Draw_Init (void)
 532 {
 533         Cvar_RegisterVariable(&r_textshadow);
 534         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
 535 }
 536
 537 static void _DrawQ_Setup(void)
 538 {
 539         if (r_refdef.draw2dstage)
 540                 return;
 541         r_refdef.draw2dstage = true;
 542         CHECKGLERROR
 543         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
 544         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
 545         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
 546         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
 547         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
 548         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
 549         R_Mesh_Matrix(&identitymatrix);
 550
 551         GL_DepthMask(true);
 552         GL_DepthTest(false);
 553         GL_Color(1,1,1,1);
 554         GL_AlphaTest(false);
 555         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 556
 557         if (gl_support_fragment_shader)
 558         {
 559                 qglUseProgramObjectARB(0);CHECKGLERROR
 560         }
 561 }
 562
 563 static void _DrawQ_ProcessDrawFlag(int flags)
 564 {
 565         _DrawQ_Setup();
 566         CHECKGLERROR
 567         if(flags == DRAWFLAG_ADDITIVE)
 568                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 569         else if(flags == DRAWFLAG_MODULATE)
 570                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
 571         else if(flags == DRAWFLAG_2XMODULATE)
 572                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
 573         else
 574                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 575 }
 576
 577 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
 578 {
 579         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);
 580 }
 581
 582 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)
 583 {
 584         int i, num;
 585         float *av, *at;
 586         int batchcount;
 587         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
 588         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
 589
 590         if (alpha < (1.0f / 255.0f))
 591                 return;
 592
 593         _DrawQ_ProcessDrawFlag(flags);
 594
 595         GL_Color(red, green, blue, alpha);
 596
 597         R_Mesh_VertexPointer(vertex3f);
 598         R_Mesh_ColorPointer(NULL);
 599         R_Mesh_ResetTextureState();
 600         R_Mesh_TexBind(0, R_GetTexture(char_texture));
 601         R_Mesh_TexCoordPointer(0, 2, texcoord2f);
 602
 603         at = texcoord2f;
 604         av = vertex3f;
 605         batchcount = 0;
 606
 607         if (maxlen < 1)
 608                 maxlen = 9999;
 609         for (i = 0;i < maxlen && x < vid_conwidth.integer && (num = string[i]);i++, x += w)
 610         {
 611                 float s, t, u, v;
 612                 if (num == ' ')
 613                         continue;
 614                 s = (num & 15)*0.0625f + (0.5f / 256.0f);
 615                 t = (num >> 4)*0.0625f + (0.5f / 256.0f);
 616                 u = 0.0625f - (1.0f / 256.0f);
 617                 v = 0.0625f - (1.0f / 256.0f);
 618                 at[ 0] = s  ;at[ 1] = t  ;
 619                 at[ 2] = s+u;at[ 3] = t  ;
 620                 at[ 4] = s+u;at[ 5] = t+v;
 621                 at[ 6] = s  ;at[ 7] = t+v;
 622                 av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
 623                 av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
 624                 av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
 625                 av[ 9] = x  ;av[10] = y+h;av[11] = 10;
 626                 at += 8;
 627                 av += 12;
 628                 batchcount++;
 629                 if (batchcount >= QUADELEMENTS_MAXQUADS)
 630                 {
 631                         GL_LockArrays(0, batchcount * 4);
 632                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
 633                         GL_LockArrays(0, 0);
 634                         batchcount = 0;
 635                         at = texcoord2f;
 636                         av = vertex3f;
 637                 }
 638         }
 639         if (batchcount > 0)
 640         {
 641                 GL_LockArrays(0, batchcount * 4);
 642                 R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements);
 643                 GL_LockArrays(0, 0);
 644         }
 645 }
 646
 647 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)
 648 {
 649         float shadow;
 650         if (r_textshadow.integer) {
 651                 shadow = (1-((red+green+blue)));
 652                 shadow = bound(0, shadow, 1);
 653                 DrawQ_String_Real(x+scalex*0.25,y+scaley*0.25,string,maxlen,scalex,scaley,shadow,shadow,shadow,alpha*0.8,flags);
 654         }
 655
 656         DrawQ_String_Real(x,y,string,maxlen,scalex,scaley,red,green,blue,alpha,flags);
 657 }
 658
 659 // color tag printing
 660 static vec4_t string_colors[] =
 661 {
 662         // Quake3 colors
 663         // LordHavoc: why on earth is cyan before magenta in Quake3?
 664         // LordHavoc: note: Doom3 uses white for [0] and [7]
 665         {0.0, 0.0, 0.0, 1.0}, // black
 666         {1.0, 0.0, 0.0, 1.0}, // red
 667         {0.0, 1.0, 0.0, 1.0}, // green
 668         {1.0, 1.0, 0.0, 1.0}, // yellow
 669         {0.0, 0.0, 1.0, 1.0}, // blue
 670         {0.0, 1.0, 1.0, 1.0}, // cyan
 671         {1.0, 0.0, 1.0, 1.0}, // magenta
 672         {1.0, 1.0, 1.0, 1.0}, // white
 673         // [515]'s BX_COLOREDTEXT extension
 674         {1.0, 1.0, 1.0, 0.5}, // half transparent
 675         {0.5, 0.5, 0.5, 1.0}  // half brightness
 676         // Black's color table
 677         //{1.0, 1.0, 1.0, 1.0},
 678         //{1.0, 0.0, 0.0, 1.0},
 679         //{0.0, 1.0, 0.0, 1.0},
 680         //{0.0, 0.0, 1.0, 1.0},
 681         //{1.0, 1.0, 0.0, 1.0},
 682         //{0.0, 1.0, 1.0, 1.0},
 683         //{1.0, 0.0, 1.0, 1.0},
 684         //{0.1, 0.1, 0.1, 1.0}
 685 };
 686
 687 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
 688
 689 // color is read and changed in the end
 690 float DrawQ_ColoredString( float x, float y, const char *text, int maxlen, float scalex, float scaley, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor )
 691 {
 692         vec_t *color;
 693         int len;
 694         int colorindex;
 695         const char *start, *current;
 696
 697         if( !outcolor || *outcolor == -1 ) {
 698                 colorindex = STRING_COLOR_DEFAULT;
 699         } else {
 700                 colorindex = *outcolor;
 701         }
 702         color = string_colors[colorindex];
 703
 704         if( maxlen < 1)
 705                 len = (int)strlen( text );
 706         else
 707                 len = min( maxlen, (int) strlen( text ) );
 708
 709         start = current = text;
 710         while( len > 0 ) {
 711                 // check for color control char
 712                 if( *current == STRING_COLOR_TAG ) {
 713                         // get next char
 714                         current++;
 715                         len--;
 716                         if( len == 0 ) {
 717                                 break;
 718                         }
 719                         // display the tag char?
 720                         if( *current == STRING_COLOR_TAG ) {
 721                                 // only display one of the two
 722                                 start = current;
 723                                 // get the next char
 724                                 current++;
 725                                 len--;
 726                         } else if( '0' <= *current && *current <= '9' ) {
 727                                 colorindex = 0;
 728                                 do {
 729                                         colorindex = colorindex * 10 + (*current - '0');
 730                                         // only read as long as it makes a valid index
 731                                         if( colorindex >= (int)STRING_COLORS_COUNT ) {
 732                                                 // undo the last operation
 733                                                 colorindex /= 10;
 734                                                 break;
 735                                         }
 736                                         current++;
 737                                         len--;
 738                                 } while( len > 0 && '0' <= *current && *current <= '9' );
 739                                 // set the color
 740                                 color = string_colors[colorindex];
 741                                 // we jump over the color tag
 742                                 start = current;
 743                         }
 744                 }
 745                 // go on and read normal text in until the next control char
 746                 while( len > 0 && *current != STRING_COLOR_TAG ) {
 747                         current++;
 748                         len--;
 749                 }
 750                 // display the text
 751                 if( start != current ) {
 752                         // draw the string
 753                         DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
 754                         // update x to be at the new start position
 755                         x += (current - start) * scalex;
 756                         // set start accordingly
 757                         start = current;
 758                 }
 759         }
 760
 761         if( start != current ) {
 762                 // draw the string
 763                 DrawQ_String( x, y, start, current - start, scalex, scaley, basered * color[0], basegreen * color[1], baseblue * color[2], basealpha * color[3], flags );
 764                 // update x to be at the new start position
 765                 x += (current - start) * scalex;
 766                 // set start accordingly
 767                 start = current;
 768         }
 769
 770         // return the last colorindex
 771         if( outcolor ) {
 772                 *outcolor = colorindex;
 773         }
 774
 775         // return the new x position
 776         return x;
 777 }
 778
 779 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)
 780 {
 781         float floats[36];
 782
 783         _DrawQ_ProcessDrawFlag(flags);
 784
 785         R_Mesh_VertexPointer(floats);
 786         R_Mesh_ColorPointer(floats + 20);
 787         R_Mesh_ResetTextureState();
 788         if (pic)
 789         {
 790                 if (width == 0)
 791                         width = pic->width;
 792                 if (height == 0)
 793                         height = pic->height;
 794                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
 795                 R_Mesh_TexCoordPointer(0, 2, floats + 12);
 796                 floats[12] = s1;floats[13] = t1;
 797                 floats[14] = s2;floats[15] = t2;
 798                 floats[16] = s4;floats[17] = t4;
 799                 floats[18] = s3;floats[19] = t3;
 800         }
 801
 802         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 803         floats[0] = floats[9] = x;
 804         floats[1] = floats[4] = y;
 805         floats[3] = floats[6] = x + width;
 806         floats[7] = floats[10] = y + height;
 807         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
 808         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
 809         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
 810         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
 811
 812         R_Mesh_Draw(0, 4, 2, polygonelements);
 813 }
 814
 815 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
 816 {
 817         _DrawQ_ProcessDrawFlag(flags);
 818
 819         R_Mesh_VertexPointer(mesh->data_vertex3f);
 820         R_Mesh_ColorPointer(mesh->data_color4f);
 821         R_Mesh_ResetTextureState();
 822         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
 823         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f);
 824
 825         GL_LockArrays(0, mesh->num_vertices);
 826         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 827         GL_LockArrays(0, 0);
 828 }
 829
 830 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
 831 {
 832         int num;
 833
 834         _DrawQ_ProcessDrawFlag(flags);
 835
 836         GL_Color(1,1,1,1);
 837         CHECKGLERROR
 838         qglBegin(GL_LINE_LOOP);
 839         for (num = 0;num < mesh->num_vertices;num++)
 840         {
 841                 if (mesh->data_color4f)
 842                         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]);
 843                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
 844         }
 845         qglEnd();
 846         CHECKGLERROR
 847 }
 848
 849 //[515]: this is old, delete
 850 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
 851 {
 852         _DrawQ_ProcessDrawFlag(flags);
 853
 854         CHECKGLERROR
 855         qglLineWidth(width);CHECKGLERROR
 856
 857         GL_Color(r,g,b,alpha);
 858         CHECKGLERROR
 859         qglBegin(GL_LINES);
 860         qglVertex2f(x1, y1);
 861         qglVertex2f(x2, y2);
 862         qglEnd();
 863         CHECKGLERROR
 864 }
 865
 866 void DrawQ_SetClipArea(float x, float y, float width, float height)
 867 {
 868         _DrawQ_Setup();
 869
 870         // We have to convert the con coords into real coords
 871         // OGL uses top to bottom
 872         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)));
 873
 874         GL_ScissorTest(true);
 875 }
 876
 877 void DrawQ_ResetClipArea(void)
 878 {
 879         _DrawQ_Setup();
 880         GL_ScissorTest(false);
 881 }
 882
 883 void DrawQ_Finish(void)
 884 {
 885         r_refdef.draw2dstage = false;
 886 }
 887
 888 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
 889 void R_DrawGamma(void)
 890 {
 891         float c[4];
 892         if (!vid_usinghwgamma)
 893         {
 894                 // all the blends ignore depth
 895                 R_Mesh_VertexPointer(blendvertex3f);
 896                 R_Mesh_ColorPointer(NULL);
 897                 R_Mesh_ResetTextureState();
 898                 GL_DepthMask(true);
 899                 GL_DepthTest(false);
 900                 if (v_color_enable.integer)
 901                 {
 902                         c[0] = v_color_white_r.value;
 903                         c[1] = v_color_white_g.value;
 904                         c[2] = v_color_white_b.value;
 905                 }
 906                 else
 907                         c[0] = c[1] = c[2] = v_contrast.value;
 908                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 909                 {
 910                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
 911                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 912                         {
 913                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
 914                                 R_Mesh_Draw(0, 3, 1, polygonelements);
 915                                 VectorScale(c, 0.5, c);
 916                         }
 917                 }
 918                 if (v_color_enable.integer)
 919                 {
 920                         c[0] = v_color_black_r.value;
 921                         c[1] = v_color_black_g.value;
 922                         c[2] = v_color_black_b.value;
 923                 }
 924                 else
 925                         c[0] = c[1] = c[2] = v_brightness.value;
 926                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
 927                 {
 928                         GL_BlendFunc(GL_ONE, GL_ONE);
 929                         GL_Color(c[0], c[1], c[2], 1);
 930                         R_Mesh_Draw(0, 3, 1, polygonelements);
 931                 }
 932         }
 933 }
 934