model_brush.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
  23 byte    mod_novis[MAX_MAP_LEAFS/8];
  24
  25 qboolean        hlbsp; // LordHavoc: true if it is a HalfLife BSP file (version 30)
  26
  27 cvar_t gl_subdivide_size = {"gl_subdivide_size", "128", true};
  28 cvar_t halflifebsp = {"halflifebsp", "0"};
  29
  30 /*
  31 ===============
  32 Mod_BrushInit
  33 ===============
  34 */
  35 void Mod_BrushInit (void)
  36 {
  37         Cvar_RegisterVariable (&gl_subdivide_size);
  38         Cvar_RegisterVariable (&halflifebsp);
  39         memset (mod_novis, 0xff, sizeof(mod_novis));
  40 }
  41
  42 // Mod_PointInLeaf moved to cpu_noasm.c
  43
  44 /*
  45 ===================
  46 Mod_DecompressVis
  47 ===================
  48 */
  49 byte *Mod_DecompressVis (byte *in, model_t *model)
  50 {
  51         static byte     decompressed[MAX_MAP_LEAFS/8];
  52         int             c;
  53         byte    *out;
  54         int             row;
  55
  56         row = (model->numleafs+7)>>3;
  57         out = decompressed;
  58
  59         if (!in)
  60         {       // no vis info, so make all visible
  61                 while (row)
  62                 {
  63                         *out++ = 0xff;
  64                         row--;
  65                 }
  66                 return decompressed;
  67         }
  68
  69         do
  70         {
  71                 if (*in)
  72                 {
  73                         *out++ = *in++;
  74                         continue;
  75                 }
  76
  77                 c = in[1];
  78                 in += 2;
  79                 while (c)
  80                 {
  81                         *out++ = 0;
  82                         c--;
  83                 }
  84         } while (out - decompressed < row);
  85
  86         return decompressed;
  87 }
  88
  89 byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model)
  90 {
  91         if (leaf == model->leafs)
  92                 return mod_novis;
  93         return Mod_DecompressVis (leaf->compressed_vis, model);
  94 }
  95
  96 extern byte     *mod_base;
  97
  98 extern cvar_t r_fullbrights;
  99
 100 /*
 101 =================
 102 Mod_LoadTextures
 103 =================
 104 */
 105 void Mod_LoadTextures (lump_t *l)
 106 {
 107         int             i, j, num, max, altmax, bytesperpixel, freeimage, transparent, fullbrights;
 108         miptex_t        *mt;
 109         texture_t       *tx, *tx2;
 110         texture_t       *anims[10];
 111         texture_t       *altanims[10];
 112         dmiptexlump_t *m;
 113         byte    *data;
 114         int             *dofs;
 115
 116         if (!l->filelen)
 117         {
 118                 loadmodel->textures = NULL;
 119                 return;
 120         }
 121
 122         m = (dmiptexlump_t *)(mod_base + l->fileofs);
 123
 124         m->nummiptex = LittleLong (m->nummiptex);
 125
 126         loadmodel->numtextures = m->nummiptex;
 127         loadmodel->textures = Hunk_AllocName (m->nummiptex * sizeof(*loadmodel->textures) , loadname);
 128
 129         // just to work around bounds checking when debugging with it (array index out of bounds error thing)
 130         dofs = m->dataofs;
 131         for (i=0 ; i<m->nummiptex ; i++)
 132         {
 133                 dofs[i] = LittleLong(dofs[i]);
 134                 if (dofs[i] == -1)
 135                         continue;
 136                 mt = (miptex_t *)((byte *)m + dofs[i]);
 137                 mt->width = LittleLong (mt->width);
 138                 mt->height = LittleLong (mt->height);
 139                 for (j=0 ; j<MIPLEVELS ; j++)
 140                         mt->offsets[j] = LittleLong (mt->offsets[j]);
 141
 142                 if ( (mt->width & 15) || (mt->height & 15) )
 143                         Host_Error ("Texture %s is not 16 aligned", mt->name);
 144                 // LordHavoc: rewriting the map texture loader for GLQuake
 145                 tx = Hunk_AllocName (sizeof(texture_t), loadname );
 146                 loadmodel->textures[i] = tx;
 147
 148                 // LordHavoc: force all names to lowercase and make sure they are terminated while copying
 149                 for (j = 0;mt->name[j] && j < 15;j++)
 150                 {
 151                         if (mt->name[j] >= 'A' && mt->name[j] <= 'Z')
 152                                 tx->name[j] = mt->name[j] + ('a' - 'A');
 153                         else
 154                                 tx->name[j] = mt->name[j];
 155                 }
 156                 for (;j < 16;j++)
 157                         tx->name[j] = 0;
 158
 159                 tx->width = mt->width;
 160                 tx->height = mt->height;
 161                 for (j=0 ; j<MIPLEVELS ; j++)
 162                         tx->offsets[j] = 0;
 163                 freeimage = TRUE;
 164                 bytesperpixel = 4;
 165                 fullbrights = FALSE;
 166                 transparent = TRUE;
 167                 data = loadimagepixels(tx->name, FALSE, 0, 0); //tx->width, tx->height);
 168                 if (!data) // no external texture found
 169                 {
 170                         freeimage = FALSE;
 171                         transparent = FALSE;
 172                         bytesperpixel = 1;
 173                         if (!hlbsp && mt->offsets[0]) // texture included
 174                         {
 175                                 data = (byte *)((int) mt + mt->offsets[0]);
 176                                 if (r_fullbrights.value && tx->name[0] != '*')
 177                                 {
 178                                         for (j = 0;j < tx->width*tx->height;j++)
 179                                                 if (data[j] >= 224) // fullbright
 180                                                 {
 181                                                         fullbrights = TRUE;
 182                                                         break;
 183                                                 }
 184                                 }
 185                         }
 186                         else // no texture, and no external replacement texture was found
 187                         {
 188                                 tx->width = tx->height = 16;
 189                                 data = (byte *)((int) r_notexture_mip + r_notexture_mip->offsets[0]);
 190                         }
 191                 }
 192                 else
 193                 {
 194                         tx->width = image_width;
 195                         tx->height = image_height;
 196                 }
 197                 if (!hlbsp && !strncmp(tx->name,"sky",3) && tx->width == 256 && tx->height == 128) // LordHavoc: HL sky textures are entirely unrelated
 198                 {
 199                         tx->transparent = FALSE;
 200                         R_InitSky (data, bytesperpixel);
 201                 }
 202                 else
 203                 {
 204                         tx->transparent = transparent;
 205                         if (fullbrights)
 206                         {
 207                                 char name[64];
 208                                 byte *data2;
 209                                 data2 = malloc(tx->width*tx->height);
 210                                 for (j = 0;j < tx->width*tx->height;j++)
 211                                         data2[j] = data[j] >= 224 ? 0 : data[j]; // no fullbrights
 212                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data2, true, transparent, 1);
 213                                 strcpy(name, tx->name);
 214                                 strcat(name, "_glow");
 215                                 for (j = 0;j < tx->width*tx->height;j++)
 216                                         data2[j] = data[j] >= 224 ? data[j] : 0; // only fullbrights
 217                                 tx->gl_glowtexturenum = GL_LoadTexture (name, tx->width, tx->height, data2, true, transparent, 1);
 218                                 free(data2);
 219                         }
 220                         else
 221                         {
 222                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data, true, transparent, bytesperpixel);
 223                                 tx->gl_glowtexturenum = 0;
 224                         }
 225                 }
 226                 if (freeimage)
 227                         free(data);
 228         }
 229
 230 //
 231 // sequence the animations
 232 //
 233         for (i=0 ; i<m->nummiptex ; i++)
 234         {
 235                 tx = loadmodel->textures[i];
 236                 if (!tx || tx->name[0] != '+')
 237                         continue;
 238                 if (tx->anim_next)
 239                         continue;       // allready sequenced
 240
 241         // find the number of frames in the animation
 242                 memset (anims, 0, sizeof(anims));
 243                 memset (altanims, 0, sizeof(altanims));
 244
 245                 max = tx->name[1];
 246                 altmax = 0;
 247                 if (max >= 'a' && max <= 'z')
 248                         max -= 'a' - 'A';
 249                 if (max >= '0' && max <= '9')
 250                 {
 251                         max -= '0';
 252                         altmax = 0;
 253                         anims[max] = tx;
 254                         max++;
 255                 }
 256                 else if (max >= 'A' && max <= 'J')
 257                 {
 258                         altmax = max - 'A';
 259                         max = 0;
 260                         altanims[altmax] = tx;
 261                         altmax++;
 262                 }
 263                 else
 264                         Host_Error ("Bad animating texture %s", tx->name);
 265
 266                 for (j=i+1 ; j<m->nummiptex ; j++)
 267                 {
 268                         tx2 = loadmodel->textures[j];
 269                         if (!tx2 || tx2->name[0] != '+')
 270                                 continue;
 271                         if (strcmp (tx2->name+2, tx->name+2))
 272                                 continue;
 273
 274                         num = tx2->name[1];
 275                         if (num >= 'a' && num <= 'z')
 276                                 num -= 'a' - 'A';
 277                         if (num >= '0' && num <= '9')
 278                         {
 279                                 num -= '0';
 280                                 anims[num] = tx2;
 281                                 if (num+1 > max)
 282                                         max = num + 1;
 283                         }
 284                         else if (num >= 'A' && num <= 'J')
 285                         {
 286                                 num = num - 'A';
 287                                 altanims[num] = tx2;
 288                                 if (num+1 > altmax)
 289                                         altmax = num+1;
 290                         }
 291                         else
 292                                 Host_Error ("Bad animating texture %s", tx->name);
 293                 }
 294
 295 #define ANIM_CYCLE      2
 296         // link them all together
 297                 for (j=0 ; j<max ; j++)
 298                 {
 299                         tx2 = anims[j];
 300                         if (!tx2)
 301                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 302                         tx2->anim_total = max * ANIM_CYCLE;
 303                         tx2->anim_min = j * ANIM_CYCLE;
 304                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 305                         tx2->anim_next = anims[ (j+1)%max ];
 306                         if (altmax)
 307                                 tx2->alternate_anims = altanims[0];
 308                 }
 309                 for (j=0 ; j<altmax ; j++)
 310                 {
 311                         tx2 = altanims[j];
 312                         if (!tx2)
 313                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 314                         tx2->anim_total = altmax * ANIM_CYCLE;
 315                         tx2->anim_min = j * ANIM_CYCLE;
 316                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 317                         tx2->anim_next = altanims[ (j+1)%altmax ];
 318                         if (max)
 319                                 tx2->alternate_anims = anims[0];
 320                 }
 321         }
 322 }
 323
 324 /*
 325 =================
 326 Mod_LoadLighting
 327 =================
 328 */
 329 void Mod_LoadLighting (lump_t *l)
 330 {
 331         int i;
 332         byte *in, *out, *data;
 333         byte d;
 334         char litfilename[1024];
 335         loadmodel->lightdata = NULL;
 336         if (hlbsp) // LordHavoc: load the colored lighting data straight
 337         {
 338                 loadmodel->lightdata = Hunk_AllocName ( l->filelen, loadname);
 339                 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
 340         }
 341         else // LordHavoc: bsp version 29 (normal white lighting)
 342         {
 343                 // LordHavoc: hope is not lost yet, check for a .lit file to load
 344                 strcpy(litfilename, loadmodel->name);
 345                 COM_StripExtension(litfilename, litfilename);
 346                 strcat(litfilename, ".lit");
 347                 data = (byte*) COM_LoadHunkFile (litfilename, false);
 348                 if (data)
 349                 {
 350                         if (data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
 351                         {
 352                                 i = LittleLong(((int *)data)[1]);
 353                                 if (i == 1)
 354                                 {
 355                                         Con_DPrintf("%s loaded", litfilename);
 356                                         loadmodel->lightdata = data + 8;
 357                                         return;
 358                                 }
 359                                 else
 360                                         Con_Printf("Unknown .lit file version (%d)\n", i);
 361                         }
 362                         else
 363                                 Con_Printf("Corrupt .lit file (old version?), ignoring\n");
 364                 }
 365                 // LordHavoc: oh well, expand the white lighting data
 366                 if (!l->filelen)
 367                         return;
 368                 loadmodel->lightdata = Hunk_AllocName ( l->filelen*3, litfilename);
 369                 in = loadmodel->lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
 370                 out = loadmodel->lightdata;
 371                 memcpy (in, mod_base + l->fileofs, l->filelen);
 372                 for (i = 0;i < l->filelen;i++)
 373                 {
 374                         d = *in++;
 375                         *out++ = d;
 376                         *out++ = d;
 377                         *out++ = d;
 378                 }
 379         }
 380 }
 381
 382
 383 /*
 384 =================
 385 Mod_LoadVisibility
 386 =================
 387 */
 388 void Mod_LoadVisibility (lump_t *l)
 389 {
 390         if (!l->filelen)
 391         {
 392                 loadmodel->visdata = NULL;
 393                 return;
 394         }
 395         loadmodel->visdata = Hunk_AllocName ( l->filelen, loadname);
 396         memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
 397 }
 398
 399 void CL_ParseEntityLump(char *entdata);
 400
 401 extern qboolean isworldmodel;
 402
 403 /*
 404 =================
 405 Mod_LoadEntities
 406 =================
 407 */
 408 void Mod_LoadEntities (lump_t *l)
 409 {
 410         if (!l->filelen)
 411         {
 412                 loadmodel->entities = NULL;
 413                 return;
 414         }
 415         loadmodel->entities = Hunk_AllocName ( l->filelen, loadname);
 416         memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen);
 417
 418         if (isworldmodel)
 419                 CL_ParseEntityLump(loadmodel->entities);
 420 }
 421
 422
 423 /*
 424 =================
 425 Mod_LoadVertexes
 426 =================
 427 */
 428 void Mod_LoadVertexes (lump_t *l)
 429 {
 430         dvertex_t       *in;
 431         mvertex_t       *out;
 432         int                     i, count;
 433
 434         in = (void *)(mod_base + l->fileofs);
 435         if (l->filelen % sizeof(*in))
 436                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 437         count = l->filelen / sizeof(*in);
 438         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 439
 440         loadmodel->vertexes = out;
 441         loadmodel->numvertexes = count;
 442
 443         for ( i=0 ; i<count ; i++, in++, out++)
 444         {
 445                 out->position[0] = LittleFloat (in->point[0]);
 446                 out->position[1] = LittleFloat (in->point[1]);
 447                 out->position[2] = LittleFloat (in->point[2]);
 448         }
 449 }
 450
 451 /*
 452 =================
 453 Mod_LoadSubmodels
 454 =================
 455 */
 456 void Mod_LoadSubmodels (lump_t *l)
 457 {
 458         dmodel_t        *in;
 459         dmodel_t        *out;
 460         int                     i, j, count;
 461
 462         in = (void *)(mod_base + l->fileofs);
 463         if (l->filelen % sizeof(*in))
 464                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 465         count = l->filelen / sizeof(*in);
 466         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 467
 468         loadmodel->submodels = out;
 469         loadmodel->numsubmodels = count;
 470
 471         for ( i=0 ; i<count ; i++, in++, out++)
 472         {
 473                 for (j=0 ; j<3 ; j++)
 474                 {       // spread the mins / maxs by a pixel
 475                         out->mins[j] = LittleFloat (in->mins[j]) - 1;
 476                         out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
 477                         out->origin[j] = LittleFloat (in->origin[j]);
 478                 }
 479                 for (j=0 ; j<MAX_MAP_HULLS ; j++)
 480                         out->headnode[j] = LittleLong (in->headnode[j]);
 481                 out->visleafs = LittleLong (in->visleafs);
 482                 out->firstface = LittleLong (in->firstface);
 483                 out->numfaces = LittleLong (in->numfaces);
 484         }
 485 }
 486
 487 /*
 488 =================
 489 Mod_LoadEdges
 490 =================
 491 */
 492 void Mod_LoadEdges (lump_t *l)
 493 {
 494         dedge_t *in;
 495         medge_t *out;
 496         int     i, count;
 497
 498         in = (void *)(mod_base + l->fileofs);
 499         if (l->filelen % sizeof(*in))
 500                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 501         count = l->filelen / sizeof(*in);
 502         out = Hunk_AllocName ( (count + 1) * sizeof(*out), loadname);
 503
 504         loadmodel->edges = out;
 505         loadmodel->numedges = count;
 506
 507         for ( i=0 ; i<count ; i++, in++, out++)
 508         {
 509                 out->v[0] = (unsigned short)LittleShort(in->v[0]);
 510                 out->v[1] = (unsigned short)LittleShort(in->v[1]);
 511         }
 512 }
 513
 514 /*
 515 =================
 516 Mod_LoadTexinfo
 517 =================
 518 */
 519 void Mod_LoadTexinfo (lump_t *l)
 520 {
 521         texinfo_t *in;
 522         mtexinfo_t *out;
 523         int     i, j, count;
 524         int             miptex;
 525         float   len1, len2;
 526
 527         in = (void *)(mod_base + l->fileofs);
 528         if (l->filelen % sizeof(*in))
 529                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 530         count = l->filelen / sizeof(*in);
 531         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 532
 533         loadmodel->texinfo = out;
 534         loadmodel->numtexinfo = count;
 535
 536         for ( i=0 ; i<count ; i++, in++, out++)
 537         {
 538                 for (j=0 ; j<8 ; j++)
 539                         out->vecs[0][j] = LittleFloat (in->vecs[0][j]);
 540                 len1 = Length (out->vecs[0]);
 541                 len2 = Length (out->vecs[1]);
 542                 len1 = (len1 + len2)/2;
 543                 if (len1 < 0.32)
 544                         out->mipadjust = 4;
 545                 else if (len1 < 0.49)
 546                         out->mipadjust = 3;
 547                 else if (len1 < 0.99)
 548                         out->mipadjust = 2;
 549                 else
 550                         out->mipadjust = 1;
 551 #if 0
 552                 if (len1 + len2 < 0.001)
 553                         out->mipadjust = 1;             // don't crash
 554                 else
 555                         out->mipadjust = 1 / floor( (len1+len2)/2 + 0.1 );
 556 #endif
 557
 558                 miptex = LittleLong (in->miptex);
 559                 out->flags = LittleLong (in->flags);
 560
 561                 if (!loadmodel->textures)
 562                 {
 563                         out->texture = r_notexture_mip; // checkerboard texture
 564                         out->flags = 0;
 565                         out->texture->transparent = FALSE;
 566                 }
 567                 else
 568                 {
 569                         if (miptex >= loadmodel->numtextures)
 570                                 Host_Error ("miptex >= loadmodel->numtextures");
 571                         out->texture = loadmodel->textures[miptex];
 572                         if (!out->texture)
 573                         {
 574                                 out->texture = r_notexture_mip; // texture not found
 575                                 out->flags = 0;
 576                                 out->texture->transparent = FALSE;
 577                         }
 578                 }
 579         }
 580 }
 581
 582 /*
 583 ================
 584 CalcSurfaceExtents
 585
 586 Fills in s->texturemins[] and s->extents[]
 587 ================
 588 */
 589 void CalcSurfaceExtents (msurface_t *s)
 590 {
 591         float   mins[2], maxs[2], val;
 592         int             i,j, e;
 593         mvertex_t       *v;
 594         mtexinfo_t      *tex;
 595         int             bmins[2], bmaxs[2];
 596
 597         mins[0] = mins[1] = 999999;
 598         maxs[0] = maxs[1] = -99999;
 599
 600         tex = s->texinfo;
 601
 602         for (i=0 ; i<s->numedges ; i++)
 603         {
 604                 e = loadmodel->surfedges[s->firstedge+i];
 605                 if (e >= 0)
 606                         v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
 607                 else
 608                         v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
 609
 610                 for (j=0 ; j<2 ; j++)
 611                 {
 612                         val = v->position[0] * tex->vecs[j][0] +
 613                                 v->position[1] * tex->vecs[j][1] +
 614                                 v->position[2] * tex->vecs[j][2] +
 615                                 tex->vecs[j][3];
 616                         if (val < mins[j])
 617                                 mins[j] = val;
 618                         if (val > maxs[j])
 619                                 maxs[j] = val;
 620                 }
 621         }
 622
 623         for (i=0 ; i<2 ; i++)
 624         {
 625                 bmins[i] = floor(mins[i]/16);
 626                 bmaxs[i] = ceil(maxs[i]/16);
 627
 628                 s->texturemins[i] = bmins[i] * 16;
 629                 s->extents[i] = (bmaxs[i] - bmins[i]) * 16;
 630                 if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ )
 631                         Host_Error ("Bad surface extents");
 632         }
 633 }
 634
 635 void GL_SubdivideSurface (msurface_t *fa);
 636
 637 extern char skyname[];
 638
 639 /*
 640 =================
 641 Mod_LoadFaces
 642 =================
 643 */
 644 void Mod_LoadFaces (lump_t *l)
 645 {
 646         dface_t         *in;
 647         msurface_t      *out;
 648         int                     i, count, surfnum;
 649         int                     planenum, side;
 650
 651         in = (void *)(mod_base + l->fileofs);
 652         if (l->filelen % sizeof(*in))
 653                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 654         count = l->filelen / sizeof(*in);
 655         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 656
 657         loadmodel->surfaces = out;
 658         loadmodel->numsurfaces = count;
 659
 660         for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
 661         {
 662                 out->firstedge = LittleLong(in->firstedge);
 663                 out->numedges = LittleShort(in->numedges);
 664                 out->flags = 0;
 665
 666                 planenum = LittleShort(in->planenum);
 667                 side = LittleShort(in->side);
 668                 if (side)
 669                         out->flags |= SURF_PLANEBACK;
 670
 671                 out->plane = loadmodel->planes + planenum;
 672
 673                 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo);
 674
 675                 CalcSurfaceExtents (out);
 676
 677         // lighting info
 678
 679                 for (i=0 ; i<MAXLIGHTMAPS ; i++)
 680                         out->styles[i] = in->styles[i];
 681                 i = LittleLong(in->lightofs);
 682                 if (i == -1)
 683                         out->samples = NULL;
 684                 else if (hlbsp) // LordHavoc: HalfLife map (bsp version 30)
 685                         out->samples = loadmodel->lightdata + i;
 686                 else // LordHavoc: white lighting (bsp version 29)
 687                         out->samples = loadmodel->lightdata + (i * 3);
 688
 689         // set the drawing flags flag
 690
 691 //              if (!strncmp(out->texinfo->texture->name,"sky",3))      // sky
 692                 // LordHavoc: faster check
 693                 if ((out->texinfo->texture->name[0] == 's' || out->texinfo->texture->name[0] == 'S')
 694                  && (out->texinfo->texture->name[1] == 'k' || out->texinfo->texture->name[1] == 'K')
 695                  && (out->texinfo->texture->name[2] == 'y' || out->texinfo->texture->name[2] == 'Y'))
 696                 {
 697                         // LordHavoc: for consistency reasons, mark sky as fullbright and solid as well
 698                         out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED | SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 699                         GL_SubdivideSurface (out);      // cut up polygon for warps
 700                         continue;
 701                 }
 702
 703 //              if (!strncmp(out->texinfo->texture->name,"*",1))                // turbulent
 704                 if (out->texinfo->texture->name[0] == '*') // LordHavoc: faster check
 705                 {
 706                         out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED);
 707                         // LordHavoc: some turbulent textures should be fullbright and solid
 708                         if (!strncmp(out->texinfo->texture->name,"*lava",5)
 709                          || !strncmp(out->texinfo->texture->name,"*teleport",9)
 710                          || !strncmp(out->texinfo->texture->name,"*rift",5)) // Scourge of Armagon texture
 711                                 out->flags |= (SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 712                         for (i=0 ; i<2 ; i++)
 713                         {
 714                                 out->extents[i] = 16384;
 715                                 out->texturemins[i] = -8192;
 716                         }
 717                         GL_SubdivideSurface (out);      // cut up polygon for warps
 718                         continue;
 719                 }
 720
 721         }
 722 }
 723
 724
 725 /*
 726 =================
 727 Mod_SetParent
 728 =================
 729 */
 730 void Mod_SetParent (mnode_t *node, mnode_t *parent)
 731 {
 732         node->parent = parent;
 733         if (node->contents < 0)
 734                 return;
 735         Mod_SetParent (node->children[0], node);
 736         Mod_SetParent (node->children[1], node);
 737 }
 738
 739 /*
 740 =================
 741 Mod_LoadNodes
 742 =================
 743 */
 744 void Mod_LoadNodes (lump_t *l)
 745 {
 746         int                     i, j, count, p;
 747         dnode_t         *in;
 748         mnode_t         *out;
 749
 750         in = (void *)(mod_base + l->fileofs);
 751         if (l->filelen % sizeof(*in))
 752                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 753         count = l->filelen / sizeof(*in);
 754         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 755
 756         loadmodel->nodes = out;
 757         loadmodel->numnodes = count;
 758
 759         for ( i=0 ; i<count ; i++, in++, out++)
 760         {
 761                 for (j=0 ; j<3 ; j++)
 762                 {
 763                         out->minmaxs[j] = LittleShort (in->mins[j]);
 764                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 765                 }
 766
 767                 p = LittleLong(in->planenum);
 768                 out->plane = loadmodel->planes + p;
 769
 770                 out->firstsurface = LittleShort (in->firstface);
 771                 out->numsurfaces = LittleShort (in->numfaces);
 772
 773                 for (j=0 ; j<2 ; j++)
 774                 {
 775                         p = LittleShort (in->children[j]);
 776                         if (p >= 0)
 777                                 out->children[j] = loadmodel->nodes + p;
 778                         else
 779                                 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
 780                 }
 781         }
 782
 783         Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
 784 }
 785
 786 /*
 787 =================
 788 Mod_LoadLeafs
 789 =================
 790 */
 791 void Mod_LoadLeafs (lump_t *l)
 792 {
 793         dleaf_t         *in;
 794         mleaf_t         *out;
 795         int                     i, j, count, p;
 796
 797         in = (void *)(mod_base + l->fileofs);
 798         if (l->filelen % sizeof(*in))
 799                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 800         count = l->filelen / sizeof(*in);
 801         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 802
 803         loadmodel->leafs = out;
 804         loadmodel->numleafs = count;
 805
 806         for ( i=0 ; i<count ; i++, in++, out++)
 807         {
 808                 for (j=0 ; j<3 ; j++)
 809                 {
 810                         out->minmaxs[j] = LittleShort (in->mins[j]);
 811                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 812                 }
 813
 814                 p = LittleLong(in->contents);
 815                 out->contents = p;
 816
 817                 out->firstmarksurface = loadmodel->marksurfaces +
 818                         LittleShort(in->firstmarksurface);
 819                 out->nummarksurfaces = LittleShort(in->nummarksurfaces);
 820
 821                 p = LittleLong(in->visofs);
 822                 if (p == -1)
 823                         out->compressed_vis = NULL;
 824                 else
 825                         out->compressed_vis = loadmodel->visdata + p;
 826                 out->efrags = NULL;
 827
 828                 for (j=0 ; j<4 ; j++)
 829                         out->ambient_sound_level[j] = in->ambient_level[j];
 830
 831                 // gl underwater warp
 832                 // LordHavoc: disabled underwater warping
 833                 /*
 834                 if (out->contents != CONTENTS_EMPTY)
 835                 {
 836                         for (j=0 ; j<out->nummarksurfaces ; j++)
 837                                 out->firstmarksurface[j]->flags |= SURF_UNDERWATER;
 838                 }
 839                 */
 840         }
 841 }
 842
 843 /*
 844 =================
 845 Mod_LoadClipnodes
 846 =================
 847 */
 848 void Mod_LoadClipnodes (lump_t *l)
 849 {
 850         dclipnode_t *in, *out;
 851         int                     i, count;
 852         hull_t          *hull;
 853
 854         in = (void *)(mod_base + l->fileofs);
 855         if (l->filelen % sizeof(*in))
 856                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 857         count = l->filelen / sizeof(*in);
 858         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 859
 860         loadmodel->clipnodes = out;
 861         loadmodel->numclipnodes = count;
 862
 863         if (hlbsp)
 864         {
 865                 hull = &loadmodel->hulls[1];
 866                 hull->clipnodes = out;
 867                 hull->firstclipnode = 0;
 868                 hull->lastclipnode = count-1;
 869                 hull->planes = loadmodel->planes;
 870                 hull->clip_mins[0] = -16;
 871                 hull->clip_mins[1] = -16;
 872                 hull->clip_mins[2] = -36;
 873                 hull->clip_maxs[0] = 16;
 874                 hull->clip_maxs[1] = 16;
 875                 hull->clip_maxs[2] = 36;
 876
 877                 hull = &loadmodel->hulls[2];
 878                 hull->clipnodes = out;
 879                 hull->firstclipnode = 0;
 880                 hull->lastclipnode = count-1;
 881                 hull->planes = loadmodel->planes;
 882                 hull->clip_mins[0] = -32;
 883                 hull->clip_mins[1] = -32;
 884                 hull->clip_mins[2] = -32;
 885                 hull->clip_maxs[0] = 32;
 886                 hull->clip_maxs[1] = 32;
 887                 hull->clip_maxs[2] = 32;
 888
 889                 hull = &loadmodel->hulls[3];
 890                 hull->clipnodes = out;
 891                 hull->firstclipnode = 0;
 892                 hull->lastclipnode = count-1;
 893                 hull->planes = loadmodel->planes;
 894                 hull->clip_mins[0] = -16;
 895                 hull->clip_mins[1] = -16;
 896                 hull->clip_mins[2] = -18;
 897                 hull->clip_maxs[0] = 16;
 898                 hull->clip_maxs[1] = 16;
 899                 hull->clip_maxs[2] = 18;
 900         }
 901         else
 902         {
 903                 hull = &loadmodel->hulls[1];
 904                 hull->clipnodes = out;
 905                 hull->firstclipnode = 0;
 906                 hull->lastclipnode = count-1;
 907                 hull->planes = loadmodel->planes;
 908                 hull->clip_mins[0] = -16;
 909                 hull->clip_mins[1] = -16;
 910                 hull->clip_mins[2] = -24;
 911                 hull->clip_maxs[0] = 16;
 912                 hull->clip_maxs[1] = 16;
 913                 hull->clip_maxs[2] = 32;
 914
 915                 hull = &loadmodel->hulls[2];
 916                 hull->clipnodes = out;
 917                 hull->firstclipnode = 0;
 918                 hull->lastclipnode = count-1;
 919                 hull->planes = loadmodel->planes;
 920                 hull->clip_mins[0] = -32;
 921                 hull->clip_mins[1] = -32;
 922                 hull->clip_mins[2] = -24;
 923                 hull->clip_maxs[0] = 32;
 924                 hull->clip_maxs[1] = 32;
 925                 hull->clip_maxs[2] = 64;
 926         }
 927
 928         for (i=0 ; i<count ; i++, out++, in++)
 929         {
 930                 out->planenum = LittleLong(in->planenum);
 931                 out->children[0] = LittleShort(in->children[0]);
 932                 out->children[1] = LittleShort(in->children[1]);
 933                 if (out->children[0] >= count || out->children[1] >= count)
 934                         Host_Error("Corrupt clipping hull (out of range child)\n");
 935         }
 936 }
 937
 938 /*
 939 =================
 940 Mod_MakeHull0
 941
 942 Duplicate the drawing hull structure as a clipping hull
 943 =================
 944 */
 945 void Mod_MakeHull0 (void)
 946 {
 947         mnode_t         *in, *child;
 948         dclipnode_t *out;
 949         int                     i, j, count;
 950         hull_t          *hull;
 951
 952         hull = &loadmodel->hulls[0];
 953
 954         in = loadmodel->nodes;
 955         count = loadmodel->numnodes;
 956         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 957
 958         hull->clipnodes = out;
 959         hull->firstclipnode = 0;
 960         hull->lastclipnode = count-1;
 961         hull->planes = loadmodel->planes;
 962
 963         for (i=0 ; i<count ; i++, out++, in++)
 964         {
 965                 out->planenum = in->plane - loadmodel->planes;
 966                 for (j=0 ; j<2 ; j++)
 967                 {
 968                         child = in->children[j];
 969                         if (child->contents < 0)
 970                                 out->children[j] = child->contents;
 971                         else
 972                                 out->children[j] = child - loadmodel->nodes;
 973                 }
 974         }
 975 }
 976
 977 /*
 978 =================
 979 Mod_LoadMarksurfaces
 980 =================
 981 */
 982 void Mod_LoadMarksurfaces (lump_t *l)
 983 {
 984         int             i, j, count;
 985         short           *in;
 986         msurface_t **out;
 987
 988         in = (void *)(mod_base + l->fileofs);
 989         if (l->filelen % sizeof(*in))
 990                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 991         count = l->filelen / sizeof(*in);
 992         out = Hunk_AllocName ( count*sizeof(*out), loadname);
 993
 994         loadmodel->marksurfaces = out;
 995         loadmodel->nummarksurfaces = count;
 996
 997         for ( i=0 ; i<count ; i++)
 998         {
 999                 j = LittleShort(in[i]);
1000                 if (j >= loadmodel->numsurfaces)
1001                         Host_Error ("Mod_ParseMarksurfaces: bad surface number");
1002                 out[i] = loadmodel->surfaces + j;
1003         }
1004 }
1005
1006 /*
1007 =================
1008 Mod_LoadSurfedges
1009 =================
1010 */
1011 void Mod_LoadSurfedges (lump_t *l)
1012 {
1013         int             i, count;
1014         int             *in, *out;
1015
1016         in = (void *)(mod_base + l->fileofs);
1017         if (l->filelen % sizeof(*in))
1018                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1019         count = l->filelen / sizeof(*in);
1020         out = Hunk_AllocName ( count*sizeof(*out), loadname);
1021
1022         loadmodel->surfedges = out;
1023         loadmodel->numsurfedges = count;
1024
1025         for ( i=0 ; i<count ; i++)
1026                 out[i] = LittleLong (in[i]);
1027 }
1028
1029
1030 /*
1031 =================
1032 Mod_LoadPlanes
1033 =================
1034 */
1035 void Mod_LoadPlanes (lump_t *l)
1036 {
1037         int                     i, j;
1038         mplane_t        *out;
1039         dplane_t        *in;
1040         int                     count;
1041         int                     bits;
1042
1043         in = (void *)(mod_base + l->fileofs);
1044         if (l->filelen % sizeof(*in))
1045                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1046         count = l->filelen / sizeof(*in);
1047         out = Hunk_AllocName ( count*2*sizeof(*out), loadname);
1048
1049         loadmodel->planes = out;
1050         loadmodel->numplanes = count;
1051
1052         for ( i=0 ; i<count ; i++, in++, out++)
1053         {
1054                 bits = 0;
1055                 for (j=0 ; j<3 ; j++)
1056                 {
1057                         out->normal[j] = LittleFloat (in->normal[j]);
1058 //                      if (out->normal[j] < 0)
1059 //                              bits |= 1<<j;
1060                 }
1061
1062                 out->dist = LittleFloat (in->dist);
1063                 out->type = LittleLong (in->type);
1064 //              out->signbits = bits;
1065                 BoxOnPlaneSideClassify(out);
1066         }
1067 }
1068
1069 /*
1070 =================
1071 Mod_LoadBrushModel
1072 =================
1073 */
1074 void Mod_LoadBrushModel (model_t *mod, void *buffer)
1075 {
1076         int                     i, j;
1077         dheader_t       *header;
1078         dmodel_t        *bm;
1079
1080         loadmodel->type = mod_brush;
1081
1082         header = (dheader_t *)buffer;
1083
1084         i = LittleLong (header->version);
1085         if (i != BSPVERSION && i != 30)
1086                 Host_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i or 30 (HalfLife))", mod->name, i, BSPVERSION);
1087         hlbsp = i == 30;
1088         halflifebsp.value = hlbsp;
1089
1090 // swap all the lumps
1091         mod_base = (byte *)header;
1092
1093         for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
1094                 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
1095
1096 // load into heap
1097
1098         // LordHavoc: had to move entity loading above everything to allow parsing various settings from worldspawn
1099         Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1100
1101         Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
1102         Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
1103         Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
1104         Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]);
1105         Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
1106         Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
1107         Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
1108         Mod_LoadFaces (&header->lumps[LUMP_FACES]);
1109         Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]);
1110         Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
1111         Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
1112         Mod_LoadNodes (&header->lumps[LUMP_NODES]);
1113         Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]);
1114 //      Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1115         Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
1116
1117         Mod_MakeHull0 ();
1118
1119         mod->numframes = 2;             // regular and alternate animation
1120
1121 //
1122 // set up the submodels (FIXME: this is confusing)
1123 //
1124         for (i=0 ; i<mod->numsubmodels ; i++)
1125         {
1126                 bm = &mod->submodels[i];
1127
1128                 mod->hulls[0].firstclipnode = bm->headnode[0];
1129                 for (j=1 ; j<MAX_MAP_HULLS ; j++)
1130                 {
1131                         mod->hulls[j].firstclipnode = bm->headnode[j];
1132                         mod->hulls[j].lastclipnode = mod->numclipnodes-1;
1133                 }
1134
1135                 mod->firstmodelsurface = bm->firstface;
1136                 mod->nummodelsurfaces = bm->numfaces;
1137
1138                 VectorCopy (bm->maxs, mod->maxs);
1139                 VectorCopy (bm->mins, mod->mins);
1140
1141                 mod->radius = RadiusFromBounds (mod->mins, mod->maxs);
1142
1143                 mod->numleafs = bm->visleafs;
1144
1145                 if (isworldmodel && i < (mod->numsubmodels-1)) // LordHavoc: only register submodels if it is the world (prevents bsp models from replacing world submodels)
1146                 {       // duplicate the basic information
1147                         char    name[10];
1148
1149                         sprintf (name, "*%i", i+1);
1150                         loadmodel = Mod_FindName (name);
1151                         *loadmodel = *mod;
1152                         strcpy (loadmodel->name, name);
1153                         mod = loadmodel;
1154                 }
1155         }
1156 }