gl_draw.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "wad.h"
  24
  25 #include "cl_video.h"
  26
  27 cvar_t r_textshadow = {CVAR_SAVE, "r_textshadow", "0", "draws a shadow on all text to improve readability (note: value controls offset, 1 = 1 pixel, 1.5 = 1.5 pixels, etc)"};
  28
  29 static rtexture_t *char_texture;
  30 cachepic_t *r_crosshairs[NUMCROSSHAIRS+1];
  31
  32 //=============================================================================
  33 /* Support Routines */
  34
  35 #define FONT_FILESIZE 13468
  36 #define MAX_CACHED_PICS 1024
  37 #define CACHEPICHASHSIZE 256
  38 static cachepic_t *cachepichash[CACHEPICHASHSIZE];
  39 static cachepic_t cachepics[MAX_CACHED_PICS];
  40 static int numcachepics;
  41
  42 static rtexturepool_t *drawtexturepool;
  43
  44 static unsigned char concharimage[FONT_FILESIZE] =
  45 {
  46 #include "lhfont.h"
  47 };
  48
  49 static rtexture_t *draw_generateconchars(void)
  50 {
  51         int i;
  52         unsigned char buffer[65536][4], *data = NULL;
  53         double random;
  54
  55         data = LoadTGA (concharimage, FONT_FILESIZE, 256, 256);
  56 // Gold numbers
  57         for (i = 0;i < 8192;i++)
  58         {
  59                 random = lhrandom (0.0,1.0);
  60                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  61                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  62                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  63                 buffer[i][3] = data[i*4+0];
  64         }
  65 // White chars
  66         for (i = 8192;i < 32768;i++)
  67         {
  68                 random = lhrandom (0.0,1.0);
  69                 buffer[i][0] = 95 + (unsigned char)(random * 64);
  70                 buffer[i][1] = 95 + (unsigned char)(random * 64);
  71                 buffer[i][2] = 95 + (unsigned char)(random * 64);
  72                 buffer[i][3] = data[i*4+0];
  73         }
  74 // Gold numbers
  75         for (i = 32768;i < 40960;i++)
  76         {
  77                 random = lhrandom (0.0,1.0);
  78                 buffer[i][0] = 83 + (unsigned char)(random * 64);
  79                 buffer[i][1] = 71 + (unsigned char)(random * 32);
  80                 buffer[i][2] = 23 + (unsigned char)(random * 16);
  81                 buffer[i][3] = data[i*4+0];
  82         }
  83 // Red chars
  84         for (i = 40960;i < 65536;i++)
  85         {
  86                 random = lhrandom (0.0,1.0);
  87                 buffer[i][0] = 96 + (unsigned char)(random * 64);
  88                 buffer[i][1] = 43 + (unsigned char)(random * 32);
  89                 buffer[i][2] = 27 + (unsigned char)(random * 32);
  90                 buffer[i][3] = data[i*4+0];
  91         }
  92
  93 #if 0
  94         Image_WriteTGARGBA ("gfx/generated_conchars.tga", 256, 256, &buffer[0][0]);
  95 #endif
  96
  97         Mem_Free(data);
  98         return R_LoadTexture2D(drawtexturepool, "conchars", 256, 256, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
  99 }
 100
 101 static char *pointerimage =
 102         "333333332......."
 103         "26777761........"
 104         "2655541........."
 105         "265541.........."
 106         "2654561........."
 107         "26414561........"
 108         "251.14561......."
 109         "21...14561......"
 110         "1.....141......."
 111         ".......1........"
 112         "................"
 113         "................"
 114         "................"
 115         "................"
 116         "................"
 117         "................"
 118 ;
 119
 120 static rtexture_t *draw_generatemousepointer(void)
 121 {
 122         int i;
 123         unsigned char buffer[256][4];
 124         for (i = 0;i < 256;i++)
 125         {
 126                 if (pointerimage[i] == '.')
 127                 {
 128                         buffer[i][0] = 0;
 129                         buffer[i][1] = 0;
 130                         buffer[i][2] = 0;
 131                         buffer[i][3] = 0;
 132                 }
 133                 else
 134                 {
 135                         buffer[i][0] = (pointerimage[i] - '0') * 16;
 136                         buffer[i][1] = (pointerimage[i] - '0') * 16;
 137                         buffer[i][2] = (pointerimage[i] - '0') * 16;
 138                         buffer[i][3] = 255;
 139                 }
 140         }
 141         return R_LoadTexture2D(drawtexturepool, "mousepointer", 16, 16, &buffer[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 142 }
 143
 144 static char *crosshairtexdata[NUMCROSSHAIRS] =
 145 {
 146         "................"
 147         "................"
 148         "................"
 149         "...33......33..."
 150         "...355....553..."
 151         "....577..775...."
 152         ".....77..77....."
 153         "................"
 154         "................"
 155         ".....77..77....."
 156         "....577..775...."
 157         "...355....553..."
 158         "...33......33..."
 159         "................"
 160         "................"
 161         "................"
 162         ,
 163         "................"
 164         "................"
 165         "................"
 166         "...3........3..."
 167         "....5......5...."
 168         ".....7....7....."
 169         "......7..7......"
 170         "................"
 171         "................"
 172         "......7..7......"
 173         ".....7....7....."
 174         "....5......5...."
 175         "...3........3..."
 176         "................"
 177         "................"
 178         "................"
 179         ,
 180         "................"
 181         ".......77......."
 182         ".......77......."
 183         "................"
 184         "................"
 185         ".......44......."
 186         ".......44......."
 187         ".77..44..44..77."
 188         ".77..44..44..77."
 189         ".......44......."
 190         ".......44......."
 191         "................"
 192         "................"
 193         ".......77......."
 194         ".......77......."
 195         "................"
 196         ,
 197         "................"
 198         "................"
 199         "................"
 200         "................"
 201         "................"
 202         "................"
 203         "................"
 204         "................"
 205         "........7777777."
 206         "........752....."
 207         "........72......"
 208         "........7......."
 209         "........7......."
 210         "........7......."
 211         "........7......."
 212         "................"
 213         ,
 214         "................"
 215         "................"
 216         "................"
 217         "................"
 218         "................"
 219         "........7......."
 220         "................"
 221         "........4......."
 222         ".....7.4.4.7...."
 223         "........4......."
 224         "................"
 225         "........7......."
 226         "................"
 227         "................"
 228         "................"
 229         "................"
 230         ,
 231         "................"
 232         "................"
 233         "................"
 234         "................"
 235         "................"
 236         "................"
 237         "................"
 238         ".......55......."
 239         ".......55......."
 240         "................"
 241         "................"
 242         "................"
 243         "................"
 244         "................"
 245         "................"
 246         "................"
 247 };
 248
 249 static rtexture_t *draw_generatecrosshair(int num)
 250 {
 251         int i;
 252         char *in;
 253         unsigned char data[16*16][4];
 254         in = crosshairtexdata[num];
 255         for (i = 0;i < 16*16;i++)
 256         {
 257                 if (in[i] == '.')
 258                 {
 259                         data[i][0] = 255;
 260                         data[i][1] = 255;
 261                         data[i][2] = 255;
 262                         data[i][3] = 0;
 263                 }
 264                 else
 265                 {
 266                         data[i][0] = data[i][1] = data[i][2] = (unsigned char) ((int) (in[i] - '0') * 127 / 7 + 128);
 267                         data[i][3] = 255;
 268                 }
 269         }
 270         return R_LoadTexture2D(drawtexturepool, va("crosshair%i", num+1), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
 271 }
 272
 273 static rtexture_t *draw_generateditherpattern(void)
 274 {
 275 #if 1
 276         int x, y;
 277         unsigned char data[8*8*4];
 278         for (y = 0;y < 8;y++)
 279         {
 280                 for (x = 0;x < 8;x++)
 281                 {
 282                         data[(y*8+x)*4+0] = data[(y*8+x)*4+1] = data[(y*8+x)*4+2] = ((x^y) & 4) ? 255 : 0;
 283                         data[(y*8+x)*4+3] = 255;
 284                 }
 285         }
 286         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 8, 8, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
 287 #else
 288         unsigned char data[16];
 289         memset(data, 255, sizeof(data));
 290         data[0] = data[1] = data[2] = data[12] = data[13] = data[14] = 0;
 291         return R_LoadTexture2D(drawtexturepool, "ditherpattern", 2, 2, data, TEXTYPE_RGBA, TEXF_FORCENEAREST | TEXF_PRECACHE, NULL);
 292 #endif
 293 }
 294
 295 /*
 296 ================
 297 Draw_CachePic
 298 ================
 299 */
 300 // FIXME: move this to client somehow
 301 cachepic_t      *Draw_CachePic (const char *path, qboolean persistent)
 302 {
 303         int crc, hashkey;
 304         cachepic_t *pic;
 305         int flags;
 306         fs_offset_t lmpsize;
 307         unsigned char *lmpdata;
 308         char lmpname[MAX_QPATH];
 309
 310         if (!strncmp(CLVIDEOPREFIX, path, sizeof(CLVIDEOPREFIX) - 1))
 311         {
 312                 clvideo_t *video;
 313
 314                 video = CL_GetVideoByName(path);
 315                 if( video )
 316                         return &video->cpif;
 317         }
 318
 319         crc = CRC_Block((unsigned char *)path, strlen(path));
 320         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 321         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 322                 if (!strcmp (path, pic->name))
 323                         return pic;
 324
 325         if (numcachepics == MAX_CACHED_PICS)
 326         {
 327                 Con_Printf ("Draw_CachePic: numcachepics == MAX_CACHED_PICS\n");
 328                 // FIXME: support NULL in callers?
 329                 return cachepics; // return the first one
 330         }
 331         pic = cachepics + (numcachepics++);
 332         strlcpy (pic->name, path, sizeof(pic->name));
 333         // link into list
 334         pic->chain = cachepichash[hashkey];
 335         cachepichash[hashkey] = pic;
 336
 337         flags = TEXF_ALPHA;
 338         if (persistent)
 339                 flags |= TEXF_PRECACHE;
 340         if (!strcmp(path, "gfx/colorcontrol/ditherpattern"))
 341                 flags |= TEXF_CLAMP;
 342
 343         // load a high quality image from disk if possible
 344         pic->tex = loadtextureimage(drawtexturepool, path, 0, 0, false, flags);
 345         if (pic->tex == NULL && !strncmp(path, "gfx/", 4))
 346         {
 347                 // compatibility with older versions which did not require gfx/ prefix
 348                 pic->tex = loadtextureimage(drawtexturepool, path + 4, 0, 0, false, flags);
 349         }
 350         // if a high quality image was loaded, set the pic's size to match it, just
 351         // in case there's no low quality version to get the size from
 352         if (pic->tex)
 353         {
 354                 pic->width = R_TextureWidth(pic->tex);
 355                 pic->height = R_TextureHeight(pic->tex);
 356         }
 357
 358         // now read the low quality version (wad or lmp file), and take the pic
 359         // size from that even if we don't upload the texture, this way the pics
 360         // show up the right size in the menu even if they were replaced with
 361         // higher or lower resolution versions
 362         dpsnprintf(lmpname, sizeof(lmpname), "%s.lmp", path);
 363         if (!strncmp(path, "gfx/", 4) && (lmpdata = FS_LoadFile(lmpname, tempmempool, false, &lmpsize)))
 364         {
 365                 if (lmpsize >= 9)
 366                 {
 367                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 368                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 369                         // if no high quality replacement image was found, upload the original low quality texture
 370                         if (!pic->tex)
 371                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
 372                 }
 373                 Mem_Free(lmpdata);
 374         }
 375         else if ((lmpdata = W_GetLumpName (path + 4)))
 376         {
 377                 if (!strcmp(path, "gfx/conchars"))
 378                 {
 379                         // conchars is a raw image and with color 0 as transparent instead of 255
 380                         pic->width = 128;
 381                         pic->height = 128;
 382                         // if no high quality replacement image was found, upload the original low quality texture
 383                         if (!pic->tex)
 384                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, 128, 128, lmpdata, TEXTYPE_PALETTE, flags, palette_font);
 385                 }
 386                 else
 387                 {
 388                         pic->width = lmpdata[0] + lmpdata[1] * 256 + lmpdata[2] * 65536 + lmpdata[3] * 16777216;
 389                         pic->height = lmpdata[4] + lmpdata[5] * 256 + lmpdata[6] * 65536 + lmpdata[7] * 16777216;
 390                         // if no high quality replacement image was found, upload the original low quality texture
 391                         if (!pic->tex)
 392                                 pic->tex = R_LoadTexture2D(drawtexturepool, path, pic->width, pic->height, lmpdata + 8, TEXTYPE_PALETTE, flags, palette_transparent);
 393                 }
 394         }
 395
 396         // if it's not found on disk, check if it's one of the builtin images
 397         if (pic->tex == NULL)
 398         {
 399                 if (pic->tex == NULL && !strcmp(path, "gfx/conchars"))
 400                         pic->tex = draw_generateconchars();
 401                 if (pic->tex == NULL && !strcmp(path, "ui/mousepointer"))
 402                         pic->tex = draw_generatemousepointer();
 403                 if (pic->tex == NULL && !strcmp(path, "gfx/prydoncursor001"))
 404                         pic->tex = draw_generatemousepointer();
 405                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair1"))
 406                         pic->tex = draw_generatecrosshair(0);
 407                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair2"))
 408                         pic->tex = draw_generatecrosshair(1);
 409                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair3"))
 410                         pic->tex = draw_generatecrosshair(2);
 411                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair4"))
 412                         pic->tex = draw_generatecrosshair(3);
 413                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair5"))
 414                         pic->tex = draw_generatecrosshair(4);
 415                 if (pic->tex == NULL && !strcmp(path, "gfx/crosshair6"))
 416                         pic->tex = draw_generatecrosshair(5);
 417                 if (pic->tex == NULL && !strcmp(path, "gfx/colorcontrol/ditherpattern"))
 418                         pic->tex = draw_generateditherpattern();
 419                 if (pic->tex == NULL)
 420                 {
 421                         // don't complain about missing gfx/crosshair images
 422                         if (strncmp(path, "gfx/crosshair", 13))
 423                                 Con_Printf("Draw_CachePic: failed to load %s\n", path);
 424                         pic->tex = r_texture_notexture;
 425                 }
 426                 pic->width = R_TextureWidth(pic->tex);
 427                 pic->height = R_TextureHeight(pic->tex);
 428         }
 429
 430         return pic;
 431 }
 432
 433 cachepic_t *Draw_NewPic(const char *picname, int width, int height, int alpha, unsigned char *pixels)
 434 {
 435         int crc, hashkey;
 436         cachepic_t *pic;
 437
 438         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 439         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 440         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 441                 if (!strcmp (picname, pic->name))
 442                         break;
 443
 444         if (pic)
 445         {
 446                 if (pic->tex && pic->width == width && pic->height == height)
 447                 {
 448                         R_UpdateTexture(pic->tex, pixels, 0, 0, width, height);
 449                         return pic;
 450                 }
 451         }
 452         else
 453         {
 454                 if (pic == NULL)
 455                 {
 456                         if (numcachepics == MAX_CACHED_PICS)
 457                         {
 458                                 Con_Printf ("Draw_NewPic: numcachepics == MAX_CACHED_PICS\n");
 459                                 // FIXME: support NULL in callers?
 460                                 return cachepics; // return the first one
 461                         }
 462                         pic = cachepics + (numcachepics++);
 463                         strlcpy (pic->name, picname, sizeof(pic->name));
 464                         // link into list
 465                         pic->chain = cachepichash[hashkey];
 466                         cachepichash[hashkey] = pic;
 467                 }
 468         }
 469
 470         pic->width = width;
 471         pic->height = height;
 472         if (pic->tex)
 473                 R_FreeTexture(pic->tex);
 474         pic->tex = R_LoadTexture2D(drawtexturepool, picname, width, height, pixels, TEXTYPE_RGBA, alpha ? TEXF_ALPHA : 0, NULL);
 475         return pic;
 476 }
 477
 478 void Draw_FreePic(const char *picname)
 479 {
 480         int crc;
 481         int hashkey;
 482         cachepic_t *pic;
 483         // this doesn't really free the pic, but does free it's texture
 484         crc = CRC_Block((unsigned char *)picname, strlen(picname));
 485         hashkey = ((crc >> 8) ^ crc) % CACHEPICHASHSIZE;
 486         for (pic = cachepichash[hashkey];pic;pic = pic->chain)
 487         {
 488                 if (!strcmp (picname, pic->name) && pic->tex)
 489                 {
 490                         R_FreeTexture(pic->tex);
 491                         pic->width = 0;
 492                         pic->height = 0;
 493                         return;
 494                 }
 495         }
 496 }
 497
 498 /*
 499 ===============
 500 Draw_Init
 501 ===============
 502 */
 503 static void gl_draw_start(void)
 504 {
 505         int i;
 506         drawtexturepool = R_AllocTexturePool();
 507
 508         numcachepics = 0;
 509         memset(cachepichash, 0, sizeof(cachepichash));
 510
 511         char_texture = Draw_CachePic("gfx/conchars", true)->tex;
 512         for (i = 1;i <= NUMCROSSHAIRS;i++)
 513                 r_crosshairs[i] = Draw_CachePic(va("gfx/crosshair%i", i), true);
 514
 515         // draw the loading screen so people have something to see in the newly opened window
 516         SCR_UpdateLoadingScreen(true);
 517 }
 518
 519 static void gl_draw_shutdown(void)
 520 {
 521         R_FreeTexturePool(&drawtexturepool);
 522
 523         numcachepics = 0;
 524         memset(cachepichash, 0, sizeof(cachepichash));
 525 }
 526
 527 static void gl_draw_newmap(void)
 528 {
 529 }
 530
 531 void GL_Draw_Init (void)
 532 {
 533         Cvar_RegisterVariable(&r_textshadow);
 534         R_RegisterModule("GL_Draw", gl_draw_start, gl_draw_shutdown, gl_draw_newmap);
 535 }
 536
 537 static void _DrawQ_Setup(void)
 538 {
 539         if (r_refdef.draw2dstage)
 540                 return;
 541         r_refdef.draw2dstage = true;
 542         CHECKGLERROR
 543         qglViewport(r_view.x, vid.height - (r_view.y + r_view.height), r_view.width, r_view.height);CHECKGLERROR
 544         GL_ColorMask(r_view.colormask[0], r_view.colormask[1], r_view.colormask[2], 1);
 545         GL_SetupView_Mode_Ortho(0, 0, vid_conwidth.integer, vid_conheight.integer, -10, 100);
 546         qglDepthFunc(GL_LEQUAL);CHECKGLERROR
 547         qglDisable(GL_POLYGON_OFFSET_FILL);CHECKGLERROR
 548         GL_CullFace(GL_FRONT); // quake is backwards, this culls back faces
 549         R_Mesh_Matrix(&identitymatrix);
 550
 551         GL_DepthMask(true);
 552         GL_DepthRange(0, 1);
 553         GL_DepthTest(false);
 554         GL_Color(1,1,1,1);
 555         GL_AlphaTest(false);
 556         GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 557
 558         if (gl_support_fragment_shader)
 559         {
 560                 qglUseProgramObjectARB(0);CHECKGLERROR
 561         }
 562 }
 563
 564 static void _DrawQ_ProcessDrawFlag(int flags)
 565 {
 566         _DrawQ_Setup();
 567         CHECKGLERROR
 568         if(flags == DRAWFLAG_ADDITIVE)
 569                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE);
 570         else if(flags == DRAWFLAG_MODULATE)
 571                 GL_BlendFunc(GL_DST_COLOR, GL_ZERO);
 572         else if(flags == DRAWFLAG_2XMODULATE)
 573                 GL_BlendFunc(GL_DST_COLOR,GL_SRC_COLOR);
 574         else
 575                 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 576 }
 577
 578 void DrawQ_Pic(float x, float y, cachepic_t *pic, float width, float height, float red, float green, float blue, float alpha, int flags)
 579 {
 580         float floats[20];
 581
 582         _DrawQ_ProcessDrawFlag(flags);
 583         GL_Color(red, green, blue, alpha);
 584
 585         R_Mesh_VertexPointer(floats, 0, 0);
 586         R_Mesh_ColorPointer(NULL, 0, 0);
 587         R_Mesh_ResetTextureState();
 588         if (pic)
 589         {
 590                 if (width == 0)
 591                         width = pic->width;
 592                 if (height == 0)
 593                         height = pic->height;
 594                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
 595                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
 596                 floats[12] = 0;floats[13] = 0;
 597                 floats[14] = 1;floats[15] = 0;
 598                 floats[16] = 1;floats[17] = 1;
 599                 floats[18] = 0;floats[19] = 1;
 600         }
 601
 602         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 603         floats[0] = floats[9] = x;
 604         floats[1] = floats[4] = y;
 605         floats[3] = floats[6] = x + width;
 606         floats[7] = floats[10] = y + height;
 607
 608         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
 609 }
 610
 611 void DrawQ_Fill(float x, float y, float width, float height, float red, float green, float blue, float alpha, int flags)
 612 {
 613         float floats[12];
 614
 615         _DrawQ_ProcessDrawFlag(flags);
 616         GL_Color(red, green, blue, alpha);
 617
 618         R_Mesh_VertexPointer(floats, 0, 0);
 619         R_Mesh_ColorPointer(NULL, 0, 0);
 620         R_Mesh_ResetTextureState();
 621
 622         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 623         floats[0] = floats[9] = x;
 624         floats[1] = floats[4] = y;
 625         floats[3] = floats[6] = x + width;
 626         floats[7] = floats[10] = y + height;
 627
 628         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
 629 }
 630
 631 // color tag printing
 632 static vec4_t string_colors[] =
 633 {
 634         // Quake3 colors
 635         // LordHavoc: why on earth is cyan before magenta in Quake3?
 636         // LordHavoc: note: Doom3 uses white for [0] and [7]
 637         {0.0, 0.0, 0.0, 1.0}, // black
 638         {1.0, 0.0, 0.0, 1.0}, // red
 639         {0.0, 1.0, 0.0, 1.0}, // green
 640         {1.0, 1.0, 0.0, 1.0}, // yellow
 641         {0.0, 0.0, 1.0, 1.0}, // blue
 642         {0.0, 1.0, 1.0, 1.0}, // cyan
 643         {1.0, 0.0, 1.0, 1.0}, // magenta
 644         {1.0, 1.0, 1.0, 1.0}, // white
 645         // [515]'s BX_COLOREDTEXT extension
 646         {1.0, 1.0, 1.0, 0.5}, // half transparent
 647         {0.5, 0.5, 0.5, 1.0}  // half brightness
 648         // Black's color table
 649         //{1.0, 1.0, 1.0, 1.0},
 650         //{1.0, 0.0, 0.0, 1.0},
 651         //{0.0, 1.0, 0.0, 1.0},
 652         //{0.0, 0.0, 1.0, 1.0},
 653         //{1.0, 1.0, 0.0, 1.0},
 654         //{0.0, 1.0, 1.0, 1.0},
 655         //{1.0, 0.0, 1.0, 1.0},
 656         //{0.1, 0.1, 0.1, 1.0}
 657 };
 658
 659 #define STRING_COLORS_COUNT     (sizeof(string_colors) / sizeof(vec4_t))
 660
 661 static void DrawQ_GetTextColor(float color[4], int colorindex, float r, float g, float b, float a, qboolean shadow)
 662 {
 663         Vector4Copy(string_colors[colorindex], color);
 664         Vector4Set(color, color[0] * r, color[1] * g, color[2] * b, color[3] * a);
 665         if (shadow)
 666         {
 667                 float shadowalpha = color[0]+color[1]+color[2] * 0.8;
 668                 Vector4Set(color, 0, 0, 0, color[3] * bound(0, shadowalpha, 1));
 669         }
 670 }
 671
 672 float DrawQ_String(float startx, float starty, const char *text, int maxlen, float w, float h, float basered, float basegreen, float baseblue, float basealpha, int flags, int *outcolor, qboolean ignorecolorcodes)
 673 {
 674         int i, num, shadow, colorindex;
 675         float x = startx, y, s, t, u, v;
 676         float *av, *at, *ac;
 677         float color[4];
 678         int batchcount;
 679         float vertex3f[QUADELEMENTS_MAXQUADS*4*3];
 680         float texcoord2f[QUADELEMENTS_MAXQUADS*4*2];
 681         float color4f[QUADELEMENTS_MAXQUADS*4*4];
 682
 683         if (maxlen < 1)
 684                 maxlen = 1<<30;
 685
 686         _DrawQ_ProcessDrawFlag(flags);
 687
 688         R_Mesh_ColorPointer(color4f, 0, 0);
 689         R_Mesh_ResetTextureState();
 690         R_Mesh_TexBind(0, R_GetTexture(char_texture));
 691         R_Mesh_TexCoordPointer(0, 2, texcoord2f, 0, 0);
 692         R_Mesh_VertexPointer(vertex3f, 0, 0);
 693
 694         ac = color4f;
 695         at = texcoord2f;
 696         av = vertex3f;
 697         batchcount = 0;
 698
 699         for (shadow = r_textshadow.value != 0;shadow >= 0;shadow--)
 700         {
 701                 if (!outcolor || *outcolor == -1)
 702                         colorindex = STRING_COLOR_DEFAULT;
 703                 else
 704                         colorindex = *outcolor;
 705                 DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
 706
 707                 x = startx;
 708                 y = starty;
 709                 if (shadow)
 710                 {
 711                         x += r_textshadow.value;
 712                         y += r_textshadow.value;
 713                 }
 714                 // because this loop increments x before it draws, we must bias x first
 715                 x -= w;
 716                 for (i = 0;i < maxlen && text[i];i++, x += w)
 717                 {
 718                         if (text[i] == ' ')
 719                                 continue;
 720                         if (text[i] == STRING_COLOR_TAG && !ignorecolorcodes && i + 1 < maxlen)
 721                         {
 722                                 if (text[i+1] == STRING_COLOR_TAG)
 723                                 {
 724                                         i++;
 725                                         if (text[i] == ' ')
 726                                                 continue;
 727                                 }
 728                                 else if (text[i+1] >= '0' && text[i+1] <= '9')
 729                                 {
 730                                         colorindex = text[i+1] - '0';
 731                                         DrawQ_GetTextColor(color, colorindex, basered, basegreen, baseblue, basealpha, shadow);
 732                                         i++;
 733                                         x -= w;
 734                                         continue;
 735                                 }
 736                         }
 737                         num = text[i];
 738                         s = (num & 15)*0.0625f + (0.5f / 256.0f);
 739                         t = (num >> 4)*0.0625f + (0.5f / 256.0f);
 740                         u = 0.0625f - (1.0f / 256.0f);
 741                         v = 0.0625f - (1.0f / 256.0f);
 742                         ac[ 0] = color[0];ac[ 1] = color[1];ac[ 2] = color[2];ac[ 3] = color[3];
 743                         ac[ 4] = color[0];ac[ 5] = color[1];ac[ 6] = color[2];ac[ 7] = color[3];
 744                         ac[ 8] = color[0];ac[ 9] = color[1];ac[10] = color[2];ac[11] = color[3];
 745                         ac[12] = color[0];ac[13] = color[1];ac[14] = color[2];ac[15] = color[3];
 746                         at[ 0] = s  ;at[ 1] = t  ;
 747                         at[ 2] = s+u;at[ 3] = t  ;
 748                         at[ 4] = s+u;at[ 5] = t+v;
 749                         at[ 6] = s  ;at[ 7] = t+v;
 750                         av[ 0] = x  ;av[ 1] = y  ;av[ 2] = 10;
 751                         av[ 3] = x+w;av[ 4] = y  ;av[ 5] = 10;
 752                         av[ 6] = x+w;av[ 7] = y+h;av[ 8] = 10;
 753                         av[ 9] = x  ;av[10] = y+h;av[11] = 10;
 754                         ac += 16;
 755                         at += 8;
 756                         av += 12;
 757                         batchcount++;
 758                         if (batchcount >= QUADELEMENTS_MAXQUADS)
 759                         {
 760                                 if (basealpha >= (1.0f / 255.0f))
 761                                 {
 762                                         GL_LockArrays(0, batchcount * 4);
 763                                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
 764                                         GL_LockArrays(0, 0);
 765                                 }
 766                                 batchcount = 0;
 767                                 ac = color4f;
 768                                 at = texcoord2f;
 769                                 av = vertex3f;
 770                         }
 771                 }
 772         }
 773         if (batchcount > 0)
 774         {
 775                 if (basealpha >= (1.0f / 255.0f))
 776                 {
 777                         GL_LockArrays(0, batchcount * 4);
 778                         R_Mesh_Draw(0, batchcount * 4, batchcount * 2, quadelements, 0, 0);
 779                         GL_LockArrays(0, 0);
 780                 }
 781         }
 782         // note: this relies on the proper text (not shadow) being drawn last
 783         return x;
 784 }
 785
 786 #if 0
 787 // not used
 788 static int DrawQ_BuildColoredText(char *output2c, size_t maxoutchars, const char *text, int maxreadchars, qboolean ignorecolorcodes, int *outcolor)
 789 {
 790         int color, numchars = 0;
 791         char *outputend2c = output2c + maxoutchars - 2;
 792         if (!outcolor || *outcolor == -1)
 793                 color = STRING_COLOR_DEFAULT;
 794         else
 795                 color = *outcolor;
 796         if (!maxreadchars)
 797                 maxreadchars = 1<<30;
 798         textend = text + maxreadchars;
 799         while (text != textend && *text)
 800         {
 801                 if (*text == STRING_COLOR_TAG && !ignorecolorcodes && text + 1 != textend)
 802                 {
 803                         if (text[1] == STRING_COLOR_TAG)
 804                                 text++;
 805                         else if (text[1] >= '0' && text[1] <= '9')
 806                         {
 807                                 color = text[1] - '0';
 808                                 text += 2;
 809                                 continue;
 810                         }
 811                 }
 812                 if (output2c >= outputend2c)
 813                         break;
 814                 *output2c++ = *text++;
 815                 *output2c++ = color;
 816                 numchars++;
 817         }
 818         output2c[0] = output2c[1] = 0;
 819         if (outcolor)
 820                 *outcolor = color;
 821         return numchars;
 822 }
 823 #endif
 824
 825 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)
 826 {
 827         float floats[36];
 828
 829         _DrawQ_ProcessDrawFlag(flags);
 830
 831         R_Mesh_VertexPointer(floats, 0, 0);
 832         R_Mesh_ColorPointer(floats + 20, 0, 0);
 833         R_Mesh_ResetTextureState();
 834         if (pic)
 835         {
 836                 if (width == 0)
 837                         width = pic->width;
 838                 if (height == 0)
 839                         height = pic->height;
 840                 R_Mesh_TexBind(0, R_GetTexture(pic->tex));
 841                 R_Mesh_TexCoordPointer(0, 2, floats + 12, 0, 0);
 842                 floats[12] = s1;floats[13] = t1;
 843                 floats[14] = s2;floats[15] = t2;
 844                 floats[16] = s4;floats[17] = t4;
 845                 floats[18] = s3;floats[19] = t3;
 846         }
 847
 848         floats[2] = floats[5] = floats[8] = floats[11] = 0;
 849         floats[0] = floats[9] = x;
 850         floats[1] = floats[4] = y;
 851         floats[3] = floats[6] = x + width;
 852         floats[7] = floats[10] = y + height;
 853         floats[20] = r1;floats[21] = g1;floats[22] = b1;floats[23] = a1;
 854         floats[24] = r2;floats[25] = g2;floats[26] = b2;floats[27] = a2;
 855         floats[28] = r4;floats[29] = g4;floats[30] = b4;floats[31] = a4;
 856         floats[32] = r3;floats[33] = g3;floats[34] = b3;floats[35] = a3;
 857
 858         R_Mesh_Draw(0, 4, 2, polygonelements, 0, 0);
 859 }
 860
 861 void DrawQ_Mesh (drawqueuemesh_t *mesh, int flags)
 862 {
 863         _DrawQ_ProcessDrawFlag(flags);
 864
 865         R_Mesh_VertexPointer(mesh->data_vertex3f, 0, 0);
 866         R_Mesh_ColorPointer(mesh->data_color4f, 0, 0);
 867         R_Mesh_ResetTextureState();
 868         R_Mesh_TexBind(0, R_GetTexture(mesh->texture));
 869         R_Mesh_TexCoordPointer(0, 2, mesh->data_texcoord2f, 0, 0);
 870
 871         GL_LockArrays(0, mesh->num_vertices);
 872         R_Mesh_Draw(0, mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, 0, 0);
 873         GL_LockArrays(0, 0);
 874 }
 875
 876 void DrawQ_LineLoop (drawqueuemesh_t *mesh, int flags)
 877 {
 878         int num;
 879
 880         _DrawQ_ProcessDrawFlag(flags);
 881
 882         GL_Color(1,1,1,1);
 883         CHECKGLERROR
 884         qglBegin(GL_LINE_LOOP);
 885         for (num = 0;num < mesh->num_vertices;num++)
 886         {
 887                 if (mesh->data_color4f)
 888                         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]);
 889                 qglVertex2f(mesh->data_vertex3f[num*3+0], mesh->data_vertex3f[num*3+1]);
 890         }
 891         qglEnd();
 892         CHECKGLERROR
 893 }
 894
 895 //[515]: this is old, delete
 896 void DrawQ_Line (float width, float x1, float y1, float x2, float y2, float r, float g, float b, float alpha, int flags)
 897 {
 898         _DrawQ_ProcessDrawFlag(flags);
 899
 900         CHECKGLERROR
 901         qglLineWidth(width);CHECKGLERROR
 902
 903         GL_Color(r,g,b,alpha);
 904         CHECKGLERROR
 905         qglBegin(GL_LINES);
 906         qglVertex2f(x1, y1);
 907         qglVertex2f(x2, y2);
 908         qglEnd();
 909         CHECKGLERROR
 910 }
 911
 912 void DrawQ_SetClipArea(float x, float y, float width, float height)
 913 {
 914         _DrawQ_Setup();
 915
 916         // We have to convert the con coords into real coords
 917         // OGL uses top to bottom
 918         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)));
 919
 920         GL_ScissorTest(true);
 921 }
 922
 923 void DrawQ_ResetClipArea(void)
 924 {
 925         _DrawQ_Setup();
 926         GL_ScissorTest(false);
 927 }
 928
 929 void DrawQ_Finish(void)
 930 {
 931         r_refdef.draw2dstage = false;
 932 }
 933
 934 static float blendvertex3f[9] = {-5000, -5000, 10, 10000, -5000, 10, -5000, 10000, 10};
 935 void R_DrawGamma(void)
 936 {
 937         float c[4];
 938         if (!vid_usinghwgamma)
 939         {
 940                 // all the blends ignore depth
 941                 R_Mesh_VertexPointer(blendvertex3f, 0, 0);
 942                 R_Mesh_ColorPointer(NULL, 0, 0);
 943                 R_Mesh_ResetTextureState();
 944                 GL_DepthMask(true);
 945                 GL_DepthRange(0, 1);
 946                 GL_DepthTest(false);
 947                 if (v_color_enable.integer)
 948                 {
 949                         c[0] = v_color_white_r.value;
 950                         c[1] = v_color_white_g.value;
 951                         c[2] = v_color_white_b.value;
 952                 }
 953                 else
 954                         c[0] = c[1] = c[2] = v_contrast.value;
 955                 if (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 956                 {
 957                         GL_BlendFunc(GL_DST_COLOR, GL_ONE);
 958                         while (c[0] >= 1.01f || c[1] >= 1.01f || c[2] >= 1.01f)
 959                         {
 960                                 GL_Color(bound(0, c[0] - 1, 1), bound(0, c[1] - 1, 1), bound(0, c[2] - 1, 1), 1);
 961                                 R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
 962                                 VectorScale(c, 0.5, c);
 963                         }
 964                 }
 965                 if (v_color_enable.integer)
 966                 {
 967                         c[0] = v_color_black_r.value;
 968                         c[1] = v_color_black_g.value;
 969                         c[2] = v_color_black_b.value;
 970                 }
 971                 else
 972                         c[0] = c[1] = c[2] = v_brightness.value;
 973                 if (c[0] >= 0.01f || c[1] >= 0.01f || c[2] >= 0.01f)
 974                 {
 975                         GL_BlendFunc(GL_ONE, GL_ONE);
 976                         GL_Color(c[0], c[1], c[2], 1);
 977                         R_Mesh_Draw(0, 3, 1, polygonelements, 0, 0);
 978                 }
 979         }
 980 }
 981