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), va("%s texture headers", 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), va("%s textures", 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 (mt->offsets[0]) // texture included
 174                         {
 175                                 data = (byte *)((int) mt + mt->offsets[0]);
 176                                 if (hlbsp)
 177                                 {
 178                                         byte *in, *out, *pal;
 179                                         int palsize, d, p;
 180                                         bytesperpixel = 4;
 181                                         freeimage = TRUE;
 182                                         in = data;
 183                                         data = out = qmalloc(mt->width * mt->height * 4);
 184                                         pal = in + (((mt->width * mt->height) * 85) >> 6);
 185                                         palsize = pal[1] * 0x100 + pal[0];
 186                                         if (palsize >= 256)
 187                                                 palsize = 255;
 188                                         pal += 2;
 189                                         for (d = 0;d < mt->width * mt->height;d++)
 190                                         {
 191                                                 p = (*in++) * 3;
 192                                                 out[0] = pal[p];
 193                                                 out[1] = pal[p+1];
 194                                                 out[2] = pal[p+2];
 195                                                 out[3] = 255;
 196                                                 if (out[0] == 255 && out[1] == 0 && out[2] == 0) // HL transparent color (pure blue)
 197                                                         out[0] = out[1] = out[2] = out[3] = 0;
 198                                                 out += 4;
 199                                         }
 200                                 }
 201                                 else if (r_fullbrights.value && tx->name[0] != '*')
 202                                 {
 203                                         for (j = 0;j < tx->width*tx->height;j++)
 204                                         {
 205                                                 if (data[j] >= 224) // fullbright
 206                                                 {
 207                                                         fullbrights = TRUE;
 208                                                         break;
 209                                                 }
 210                                         }
 211                                 }
 212                         }
 213                         else // no texture, and no external replacement texture was found
 214                         {
 215                                 tx->width = tx->height = 16;
 216                                 data = (byte *)((int) r_notexture_mip + r_notexture_mip->offsets[0]);
 217                         }
 218                 }
 219                 else
 220                 {
 221                         tx->width = image_width;
 222                         tx->height = image_height;
 223                 }
 224                 if (!hlbsp && !strncmp(tx->name,"sky",3) && tx->width == 256 && tx->height == 128) // LordHavoc: HL sky textures are entirely unrelated
 225                 {
 226                         tx->transparent = FALSE;
 227                         R_InitSky (data, bytesperpixel);
 228                 }
 229                 else
 230                 {
 231                         if (fullbrights)
 232                         {
 233                                 char name[64];
 234                                 byte *data2;
 235                                 tx->transparent = false;
 236                                 data2 = qmalloc(tx->width*tx->height);
 237                                 for (j = 0;j < tx->width*tx->height;j++)
 238                                         data2[j] = data[j] >= 224 ? 0 : data[j]; // no fullbrights
 239                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data2, true, false, 1);
 240                                 strcpy(name, tx->name);
 241                                 strcat(name, "_glow");
 242                                 for (j = 0;j < tx->width*tx->height;j++)
 243                                         data2[j] = data[j] >= 224 ? data[j] : 0; // only fullbrights
 244                                 tx->gl_glowtexturenum = GL_LoadTexture (name, tx->width, tx->height, data2, true, false, 1);
 245                                 qfree(data2);
 246                         }
 247                         else
 248                         {
 249                                 tx->transparent = transparent;
 250                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data, true, transparent, bytesperpixel);
 251                                 tx->gl_glowtexturenum = 0;
 252                         }
 253                 }
 254                 if (freeimage)
 255                         qfree(data);
 256         }
 257
 258 //
 259 // sequence the animations
 260 //
 261         for (i=0 ; i<m->nummiptex ; i++)
 262         {
 263                 tx = loadmodel->textures[i];
 264                 if (!tx || tx->name[0] != '+')
 265                         continue;
 266                 if (tx->anim_next)
 267                         continue;       // allready sequenced
 268
 269         // find the number of frames in the animation
 270                 memset (anims, 0, sizeof(anims));
 271                 memset (altanims, 0, sizeof(altanims));
 272
 273                 max = tx->name[1];
 274                 altmax = 0;
 275                 if (max >= 'a' && max <= 'z')
 276                         max -= 'a' - 'A';
 277                 if (max >= '0' && max <= '9')
 278                 {
 279                         max -= '0';
 280                         altmax = 0;
 281                         anims[max] = tx;
 282                         max++;
 283                 }
 284                 else if (max >= 'A' && max <= 'J')
 285                 {
 286                         altmax = max - 'A';
 287                         max = 0;
 288                         altanims[altmax] = tx;
 289                         altmax++;
 290                 }
 291                 else
 292                         Host_Error ("Bad animating texture %s", tx->name);
 293
 294                 for (j=i+1 ; j<m->nummiptex ; j++)
 295                 {
 296                         tx2 = loadmodel->textures[j];
 297                         if (!tx2 || tx2->name[0] != '+')
 298                                 continue;
 299                         if (strcmp (tx2->name+2, tx->name+2))
 300                                 continue;
 301
 302                         num = tx2->name[1];
 303                         if (num >= 'a' && num <= 'z')
 304                                 num -= 'a' - 'A';
 305                         if (num >= '0' && num <= '9')
 306                         {
 307                                 num -= '0';
 308                                 anims[num] = tx2;
 309                                 if (num+1 > max)
 310                                         max = num + 1;
 311                         }
 312                         else if (num >= 'A' && num <= 'J')
 313                         {
 314                                 num = num - 'A';
 315                                 altanims[num] = tx2;
 316                                 if (num+1 > altmax)
 317                                         altmax = num+1;
 318                         }
 319                         else
 320                                 Host_Error ("Bad animating texture %s", tx->name);
 321                 }
 322
 323 #define ANIM_CYCLE      2
 324         // link them all together
 325                 for (j=0 ; j<max ; j++)
 326                 {
 327                         tx2 = anims[j];
 328                         if (!tx2)
 329                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 330                         tx2->anim_total = max * ANIM_CYCLE;
 331                         tx2->anim_min = j * ANIM_CYCLE;
 332                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 333                         tx2->anim_next = anims[ (j+1)%max ];
 334                         if (altmax)
 335                                 tx2->alternate_anims = altanims[0];
 336                 }
 337                 for (j=0 ; j<altmax ; j++)
 338                 {
 339                         tx2 = altanims[j];
 340                         if (!tx2)
 341                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 342                         tx2->anim_total = altmax * ANIM_CYCLE;
 343                         tx2->anim_min = j * ANIM_CYCLE;
 344                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 345                         tx2->anim_next = altanims[ (j+1)%altmax ];
 346                         if (max)
 347                                 tx2->alternate_anims = anims[0];
 348                 }
 349         }
 350 }
 351
 352 /*
 353 =================
 354 Mod_LoadLighting
 355 =================
 356 */
 357 void Mod_LoadLighting (lump_t *l)
 358 {
 359         int i;
 360         byte *in, *out, *data;
 361         byte d;
 362         char litfilename[1024];
 363         loadmodel->lightdata = NULL;
 364         if (hlbsp) // LordHavoc: load the colored lighting data straight
 365         {
 366                 loadmodel->lightdata = Hunk_AllocName ( l->filelen, va("%s lightmaps", loadname));
 367                 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
 368         }
 369         else // LordHavoc: bsp version 29 (normal white lighting)
 370         {
 371                 // LordHavoc: hope is not lost yet, check for a .lit file to load
 372                 strcpy(litfilename, loadmodel->name);
 373                 COM_StripExtension(litfilename, litfilename);
 374                 strcat(litfilename, ".lit");
 375                 data = (byte*) COM_LoadHunkFile (litfilename, false);
 376                 if (data)
 377                 {
 378                         if (data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
 379                         {
 380                                 i = LittleLong(((int *)data)[1]);
 381                                 if (i == 1)
 382                                 {
 383                                         Con_DPrintf("%s loaded", litfilename);
 384                                         loadmodel->lightdata = data + 8;
 385                                         return;
 386                                 }
 387                                 else
 388                                         Con_Printf("Unknown .lit file version (%d)\n", i);
 389                         }
 390                         else
 391                                 Con_Printf("Corrupt .lit file (old version?), ignoring\n");
 392                 }
 393                 // LordHavoc: oh well, expand the white lighting data
 394                 if (!l->filelen)
 395                         return;
 396                 loadmodel->lightdata = Hunk_AllocName ( l->filelen*3, va("%s lightmaps", loadname));
 397                 in = loadmodel->lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
 398                 out = loadmodel->lightdata;
 399                 memcpy (in, mod_base + l->fileofs, l->filelen);
 400                 for (i = 0;i < l->filelen;i++)
 401                 {
 402                         d = *in++;
 403                         *out++ = d;
 404                         *out++ = d;
 405                         *out++ = d;
 406                 }
 407         }
 408 }
 409
 410
 411 /*
 412 =================
 413 Mod_LoadVisibility
 414 =================
 415 */
 416 void Mod_LoadVisibility (lump_t *l)
 417 {
 418         if (!l->filelen)
 419         {
 420                 loadmodel->visdata = NULL;
 421                 return;
 422         }
 423         loadmodel->visdata = Hunk_AllocName ( l->filelen, va("%s visdata", loadname));
 424         memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
 425 }
 426
 427 void CL_ParseEntityLump(char *entdata);
 428
 429 extern qboolean isworldmodel;
 430
 431 /*
 432 =================
 433 Mod_LoadEntities
 434 =================
 435 */
 436 void Mod_LoadEntities (lump_t *l)
 437 {
 438         if (!l->filelen)
 439         {
 440                 loadmodel->entities = NULL;
 441                 return;
 442         }
 443         loadmodel->entities = Hunk_AllocName ( l->filelen, va("%s entities", loadname));
 444         memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen);
 445
 446         if (isworldmodel)
 447                 CL_ParseEntityLump(loadmodel->entities);
 448 }
 449
 450
 451 /*
 452 =================
 453 Mod_LoadVertexes
 454 =================
 455 */
 456 void Mod_LoadVertexes (lump_t *l)
 457 {
 458         dvertex_t       *in;
 459         mvertex_t       *out;
 460         int                     i, 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), va("%s vertices", loadname));
 467
 468         loadmodel->vertexes = out;
 469         loadmodel->numvertexes = count;
 470
 471         for ( i=0 ; i<count ; i++, in++, out++)
 472         {
 473                 out->position[0] = LittleFloat (in->point[0]);
 474                 out->position[1] = LittleFloat (in->point[1]);
 475                 out->position[2] = LittleFloat (in->point[2]);
 476         }
 477 }
 478
 479 /*
 480 =================
 481 Mod_LoadSubmodels
 482 =================
 483 */
 484 void Mod_LoadSubmodels (lump_t *l)
 485 {
 486         dmodel_t        *in;
 487         dmodel_t        *out;
 488         int                     i, j, count;
 489
 490         in = (void *)(mod_base + l->fileofs);
 491         if (l->filelen % sizeof(*in))
 492                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 493         count = l->filelen / sizeof(*in);
 494         out = Hunk_AllocName ( count*sizeof(*out), va("%s submodels", loadname));
 495
 496         loadmodel->submodels = out;
 497         loadmodel->numsubmodels = count;
 498
 499         for ( i=0 ; i<count ; i++, in++, out++)
 500         {
 501                 for (j=0 ; j<3 ; j++)
 502                 {       // spread the mins / maxs by a pixel
 503                         out->mins[j] = LittleFloat (in->mins[j]) - 1;
 504                         out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
 505                         out->origin[j] = LittleFloat (in->origin[j]);
 506                 }
 507                 for (j=0 ; j<MAX_MAP_HULLS ; j++)
 508                         out->headnode[j] = LittleLong (in->headnode[j]);
 509                 out->visleafs = LittleLong (in->visleafs);
 510                 out->firstface = LittleLong (in->firstface);
 511                 out->numfaces = LittleLong (in->numfaces);
 512         }
 513 }
 514
 515 /*
 516 =================
 517 Mod_LoadEdges
 518 =================
 519 */
 520 void Mod_LoadEdges (lump_t *l)
 521 {
 522         dedge_t *in;
 523         medge_t *out;
 524         int     i, count;
 525
 526         in = (void *)(mod_base + l->fileofs);
 527         if (l->filelen % sizeof(*in))
 528                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 529         count = l->filelen / sizeof(*in);
 530         out = Hunk_AllocName ( (count + 1) * sizeof(*out), va("%s edges", loadname));
 531
 532         loadmodel->edges = out;
 533         loadmodel->numedges = count;
 534
 535         for ( i=0 ; i<count ; i++, in++, out++)
 536         {
 537                 out->v[0] = (unsigned short)LittleShort(in->v[0]);
 538                 out->v[1] = (unsigned short)LittleShort(in->v[1]);
 539         }
 540 }
 541
 542 /*
 543 =================
 544 Mod_LoadTexinfo
 545 =================
 546 */
 547 void Mod_LoadTexinfo (lump_t *l)
 548 {
 549         texinfo_t *in;
 550         mtexinfo_t *out;
 551         int     i, j, k, count;
 552         int             miptex;
 553         float   len1, len2;
 554
 555         in = (void *)(mod_base + l->fileofs);
 556         if (l->filelen % sizeof(*in))
 557                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 558         count = l->filelen / sizeof(*in);
 559         out = Hunk_AllocName ( count*sizeof(*out), va("%s texinfo", loadname));
 560
 561         loadmodel->texinfo = out;
 562         loadmodel->numtexinfo = count;
 563
 564         for ( i=0 ; i<count ; i++, in++, out++)
 565         {
 566                 for (k=0 ; k<2 ; k++)
 567                         for (j=0 ; j<4 ; j++)
 568                                 out->vecs[k][j] = LittleFloat (in->vecs[k][j]);
 569                 len1 = Length (out->vecs[0]);
 570                 len2 = Length (out->vecs[1]);
 571                 len1 = (len1 + len2)/2;
 572                 if (len1 < 0.32)
 573                         out->mipadjust = 4;
 574                 else if (len1 < 0.49)
 575                         out->mipadjust = 3;
 576                 else if (len1 < 0.99)
 577                         out->mipadjust = 2;
 578                 else
 579                         out->mipadjust = 1;
 580 #if 0
 581                 if (len1 + len2 < 0.001)
 582                         out->mipadjust = 1;             // don't crash
 583                 else
 584                         out->mipadjust = 1 / floor( (len1+len2)/2 + 0.1 );
 585 #endif
 586
 587                 miptex = LittleLong (in->miptex);
 588                 out->flags = LittleLong (in->flags);
 589
 590                 if (!loadmodel->textures)
 591                 {
 592                         out->texture = r_notexture_mip; // checkerboard texture
 593                         out->flags = 0;
 594                         out->texture->transparent = FALSE;
 595                 }
 596                 else
 597                 {
 598                         if (miptex >= loadmodel->numtextures)
 599                                 Host_Error ("miptex >= loadmodel->numtextures");
 600                         out->texture = loadmodel->textures[miptex];
 601                         if (!out->texture)
 602                         {
 603                                 out->texture = r_notexture_mip; // texture not found
 604                                 out->flags = 0;
 605                                 out->texture->transparent = FALSE;
 606                         }
 607                 }
 608         }
 609 }
 610
 611 /*
 612 ================
 613 CalcSurfaceExtents
 614
 615 Fills in s->texturemins[] and s->extents[]
 616 ================
 617 */
 618 void CalcSurfaceExtents (msurface_t *s)
 619 {
 620         float   mins[2], maxs[2], val;
 621         int             i,j, e;
 622         mvertex_t       *v;
 623         mtexinfo_t      *tex;
 624         int             bmins[2], bmaxs[2];
 625
 626         mins[0] = mins[1] = 999999;
 627         maxs[0] = maxs[1] = -99999;
 628
 629         tex = s->texinfo;
 630
 631         for (i=0 ; i<s->numedges ; i++)
 632         {
 633                 e = loadmodel->surfedges[s->firstedge+i];
 634                 if (e >= 0)
 635                         v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
 636                 else
 637                         v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
 638
 639                 for (j=0 ; j<2 ; j++)
 640                 {
 641                         val = v->position[0] * tex->vecs[j][0] +
 642                                 v->position[1] * tex->vecs[j][1] +
 643                                 v->position[2] * tex->vecs[j][2] +
 644                                 tex->vecs[j][3];
 645                         if (val < mins[j])
 646                                 mins[j] = val;
 647                         if (val > maxs[j])
 648                                 maxs[j] = val;
 649                 }
 650         }
 651
 652         for (i=0 ; i<2 ; i++)
 653         {
 654                 bmins[i] = floor(mins[i]/16);
 655                 bmaxs[i] = ceil(maxs[i]/16);
 656
 657                 s->texturemins[i] = bmins[i] * 16;
 658                 s->extents[i] = (bmaxs[i] - bmins[i]) * 16;
 659                 if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ )
 660                         Host_Error ("Bad surface extents");
 661         }
 662 }
 663
 664 void GL_SubdivideSurface (msurface_t *fa);
 665
 666 extern char skyname[];
 667
 668 /*
 669 =================
 670 Mod_LoadFaces
 671 =================
 672 */
 673 void Mod_LoadFaces (lump_t *l)
 674 {
 675         dface_t         *in;
 676         msurface_t      *out;
 677         int                     i, count, surfnum;
 678         int                     planenum, side;
 679
 680         in = (void *)(mod_base + l->fileofs);
 681         if (l->filelen % sizeof(*in))
 682                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 683         count = l->filelen / sizeof(*in);
 684         out = Hunk_AllocName ( count*sizeof(*out), va("%s faces", loadname));
 685
 686         loadmodel->surfaces = out;
 687         loadmodel->numsurfaces = count;
 688
 689         for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
 690         {
 691                 out->firstedge = LittleLong(in->firstedge);
 692                 out->numedges = LittleShort(in->numedges);
 693                 out->flags = 0;
 694
 695                 planenum = LittleShort(in->planenum);
 696                 side = LittleShort(in->side);
 697                 if (side)
 698                         out->flags |= SURF_PLANEBACK;
 699
 700                 out->plane = loadmodel->planes + planenum;
 701
 702                 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo);
 703
 704                 CalcSurfaceExtents (out);
 705
 706         // lighting info
 707
 708                 for (i=0 ; i<MAXLIGHTMAPS ; i++)
 709                         out->styles[i] = in->styles[i];
 710                 i = LittleLong(in->lightofs);
 711                 if (i == -1)
 712                         out->samples = NULL;
 713                 else if (hlbsp) // LordHavoc: HalfLife map (bsp version 30)
 714                         out->samples = loadmodel->lightdata + i;
 715                 else // LordHavoc: white lighting (bsp version 29)
 716                         out->samples = loadmodel->lightdata + (i * 3);
 717
 718         // set the drawing flags flag
 719
 720 //              if (!strncmp(out->texinfo->texture->name,"sky",3))      // sky
 721                 // LordHavoc: faster check
 722                 if ((out->texinfo->texture->name[0] == 's' || out->texinfo->texture->name[0] == 'S')
 723                  && (out->texinfo->texture->name[1] == 'k' || out->texinfo->texture->name[1] == 'K')
 724                  && (out->texinfo->texture->name[2] == 'y' || out->texinfo->texture->name[2] == 'Y'))
 725                 {
 726                         // LordHavoc: for consistency reasons, mark sky as fullbright and solid as well
 727                         out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED | SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 728                         GL_SubdivideSurface (out);      // cut up polygon for warps
 729                         continue;
 730                 }
 731
 732 //              if (!strncmp(out->texinfo->texture->name,"*",1))                // turbulent
 733                 if (out->texinfo->texture->name[0] == '*') // LordHavoc: faster check
 734                 {
 735                         out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED);
 736                         // LordHavoc: some turbulent textures should be fullbright and solid
 737                         if (!strncmp(out->texinfo->texture->name,"*lava",5)
 738                          || !strncmp(out->texinfo->texture->name,"*teleport",9)
 739                          || !strncmp(out->texinfo->texture->name,"*rift",5)) // Scourge of Armagon texture
 740                                 out->flags |= (SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 741                         for (i=0 ; i<2 ; i++)
 742                         {
 743                                 out->extents[i] = 16384;
 744                                 out->texturemins[i] = -8192;
 745                         }
 746                         GL_SubdivideSurface (out);      // cut up polygon for warps
 747                         continue;
 748                 }
 749
 750         }
 751 }
 752
 753
 754 /*
 755 =================
 756 Mod_SetParent
 757 =================
 758 */
 759 void Mod_SetParent (mnode_t *node, mnode_t *parent)
 760 {
 761         node->parent = parent;
 762         if (node->contents < 0)
 763                 return;
 764         Mod_SetParent (node->children[0], node);
 765         Mod_SetParent (node->children[1], node);
 766 }
 767
 768 /*
 769 =================
 770 Mod_LoadNodes
 771 =================
 772 */
 773 void Mod_LoadNodes (lump_t *l)
 774 {
 775         int                     i, j, count, p;
 776         dnode_t         *in;
 777         mnode_t         *out;
 778
 779         in = (void *)(mod_base + l->fileofs);
 780         if (l->filelen % sizeof(*in))
 781                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 782         count = l->filelen / sizeof(*in);
 783         out = Hunk_AllocName ( count*sizeof(*out), va("%s nodes", loadname));
 784
 785         loadmodel->nodes = out;
 786         loadmodel->numnodes = count;
 787
 788         for ( i=0 ; i<count ; i++, in++, out++)
 789         {
 790                 for (j=0 ; j<3 ; j++)
 791                 {
 792                         out->minmaxs[j] = LittleShort (in->mins[j]);
 793                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 794                 }
 795
 796                 p = LittleLong(in->planenum);
 797                 out->plane = loadmodel->planes + p;
 798
 799                 out->firstsurface = LittleShort (in->firstface);
 800                 out->numsurfaces = LittleShort (in->numfaces);
 801
 802                 for (j=0 ; j<2 ; j++)
 803                 {
 804                         p = LittleShort (in->children[j]);
 805                         if (p >= 0)
 806                                 out->children[j] = loadmodel->nodes + p;
 807                         else
 808                                 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
 809                 }
 810         }
 811
 812         Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
 813 }
 814
 815 /*
 816 =================
 817 Mod_LoadLeafs
 818 =================
 819 */
 820 void Mod_LoadLeafs (lump_t *l)
 821 {
 822         dleaf_t         *in;
 823         mleaf_t         *out;
 824         int                     i, j, count, p;
 825
 826         in = (void *)(mod_base + l->fileofs);
 827         if (l->filelen % sizeof(*in))
 828                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 829         count = l->filelen / sizeof(*in);
 830         out = Hunk_AllocName ( count*sizeof(*out), va("%s leafs", loadname));
 831
 832         loadmodel->leafs = out;
 833         loadmodel->numleafs = count;
 834
 835         for ( i=0 ; i<count ; i++, in++, out++)
 836         {
 837                 for (j=0 ; j<3 ; j++)
 838                 {
 839                         out->minmaxs[j] = LittleShort (in->mins[j]);
 840                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 841                 }
 842
 843                 p = LittleLong(in->contents);
 844                 out->contents = p;
 845
 846                 out->firstmarksurface = loadmodel->marksurfaces +
 847                         LittleShort(in->firstmarksurface);
 848                 out->nummarksurfaces = LittleShort(in->nummarksurfaces);
 849
 850                 p = LittleLong(in->visofs);
 851                 if (p == -1)
 852                         out->compressed_vis = NULL;
 853                 else
 854                         out->compressed_vis = loadmodel->visdata + p;
 855                 out->efrags = NULL;
 856
 857                 for (j=0 ; j<4 ; j++)
 858                         out->ambient_sound_level[j] = in->ambient_level[j];
 859
 860                 // gl underwater warp
 861                 // LordHavoc: disabled underwater warping
 862                 /*
 863                 if (out->contents != CONTENTS_EMPTY)
 864                 {
 865                         for (j=0 ; j<out->nummarksurfaces ; j++)
 866                                 out->firstmarksurface[j]->flags |= SURF_UNDERWATER;
 867                 }
 868                 */
 869         }
 870 }
 871
 872 /*
 873 =================
 874 Mod_LoadClipnodes
 875 =================
 876 */
 877 void Mod_LoadClipnodes (lump_t *l)
 878 {
 879         dclipnode_t *in, *out;
 880         int                     i, count;
 881         hull_t          *hull;
 882
 883         in = (void *)(mod_base + l->fileofs);
 884         if (l->filelen % sizeof(*in))
 885                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 886         count = l->filelen / sizeof(*in);
 887         out = Hunk_AllocName ( count*sizeof(*out), va("%s clipnodes", loadname));
 888
 889         loadmodel->clipnodes = out;
 890         loadmodel->numclipnodes = count;
 891
 892         if (hlbsp)
 893         {
 894                 hull = &loadmodel->hulls[1];
 895                 hull->clipnodes = out;
 896                 hull->firstclipnode = 0;
 897                 hull->lastclipnode = count-1;
 898                 hull->planes = loadmodel->planes;
 899                 hull->clip_mins[0] = -16;
 900                 hull->clip_mins[1] = -16;
 901                 hull->clip_mins[2] = -36;
 902                 hull->clip_maxs[0] = 16;
 903                 hull->clip_maxs[1] = 16;
 904                 hull->clip_maxs[2] = 36;
 905
 906                 hull = &loadmodel->hulls[2];
 907                 hull->clipnodes = out;
 908                 hull->firstclipnode = 0;
 909                 hull->lastclipnode = count-1;
 910                 hull->planes = loadmodel->planes;
 911                 hull->clip_mins[0] = -32;
 912                 hull->clip_mins[1] = -32;
 913                 hull->clip_mins[2] = -32;
 914                 hull->clip_maxs[0] = 32;
 915                 hull->clip_maxs[1] = 32;
 916                 hull->clip_maxs[2] = 32;
 917
 918                 hull = &loadmodel->hulls[3];
 919                 hull->clipnodes = out;
 920                 hull->firstclipnode = 0;
 921                 hull->lastclipnode = count-1;
 922                 hull->planes = loadmodel->planes;
 923                 hull->clip_mins[0] = -16;
 924                 hull->clip_mins[1] = -16;
 925                 hull->clip_mins[2] = -18;
 926                 hull->clip_maxs[0] = 16;
 927                 hull->clip_maxs[1] = 16;
 928                 hull->clip_maxs[2] = 18;
 929         }
 930         else
 931         {
 932                 hull = &loadmodel->hulls[1];
 933                 hull->clipnodes = out;
 934                 hull->firstclipnode = 0;
 935                 hull->lastclipnode = count-1;
 936                 hull->planes = loadmodel->planes;
 937                 hull->clip_mins[0] = -16;
 938                 hull->clip_mins[1] = -16;
 939                 hull->clip_mins[2] = -24;
 940                 hull->clip_maxs[0] = 16;
 941                 hull->clip_maxs[1] = 16;
 942                 hull->clip_maxs[2] = 32;
 943
 944                 hull = &loadmodel->hulls[2];
 945                 hull->clipnodes = out;
 946                 hull->firstclipnode = 0;
 947                 hull->lastclipnode = count-1;
 948                 hull->planes = loadmodel->planes;
 949                 hull->clip_mins[0] = -32;
 950                 hull->clip_mins[1] = -32;
 951                 hull->clip_mins[2] = -24;
 952                 hull->clip_maxs[0] = 32;
 953                 hull->clip_maxs[1] = 32;
 954                 hull->clip_maxs[2] = 64;
 955         }
 956
 957         for (i=0 ; i<count ; i++, out++, in++)
 958         {
 959                 out->planenum = LittleLong(in->planenum);
 960                 out->children[0] = LittleShort(in->children[0]);
 961                 out->children[1] = LittleShort(in->children[1]);
 962                 if (out->children[0] >= count || out->children[1] >= count)
 963                         Host_Error("Corrupt clipping hull (out of range child)\n");
 964         }
 965 }
 966
 967 /*
 968 =================
 969 Mod_MakeHull0
 970
 971 Duplicate the drawing hull structure as a clipping hull
 972 =================
 973 */
 974 void Mod_MakeHull0 (void)
 975 {
 976         mnode_t         *in, *child;
 977         dclipnode_t *out;
 978         int                     i, j, count;
 979         hull_t          *hull;
 980
 981         hull = &loadmodel->hulls[0];
 982
 983         in = loadmodel->nodes;
 984         count = loadmodel->numnodes;
 985         out = Hunk_AllocName ( count*sizeof(*out), va("%s hull0", loadname));
 986
 987         hull->clipnodes = out;
 988         hull->firstclipnode = 0;
 989         hull->lastclipnode = count-1;
 990         hull->planes = loadmodel->planes;
 991
 992         for (i=0 ; i<count ; i++, out++, in++)
 993         {
 994                 out->planenum = in->plane - loadmodel->planes;
 995                 for (j=0 ; j<2 ; j++)
 996                 {
 997                         child = in->children[j];
 998                         if (child->contents < 0)
 999                                 out->children[j] = child->contents;
1000                         else
1001                                 out->children[j] = child - loadmodel->nodes;
1002                 }
1003         }
1004 }
1005
1006 /*
1007 =================
1008 Mod_LoadMarksurfaces
1009 =================
1010 */
1011 void Mod_LoadMarksurfaces (lump_t *l)
1012 {
1013         int             i, j, count;
1014         short           *in;
1015         msurface_t **out;
1016
1017         in = (void *)(mod_base + l->fileofs);
1018         if (l->filelen % sizeof(*in))
1019                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1020         count = l->filelen / sizeof(*in);
1021         out = Hunk_AllocName ( count*sizeof(*out), va("%s marksurfaces", loadname));
1022
1023         loadmodel->marksurfaces = out;
1024         loadmodel->nummarksurfaces = count;
1025
1026         for ( i=0 ; i<count ; i++)
1027         {
1028                 j = LittleShort(in[i]);
1029                 if (j >= loadmodel->numsurfaces)
1030                         Host_Error ("Mod_ParseMarksurfaces: bad surface number");
1031                 out[i] = loadmodel->surfaces + j;
1032         }
1033 }
1034
1035 /*
1036 =================
1037 Mod_LoadSurfedges
1038 =================
1039 */
1040 void Mod_LoadSurfedges (lump_t *l)
1041 {
1042         int             i, count;
1043         int             *in, *out;
1044
1045         in = (void *)(mod_base + l->fileofs);
1046         if (l->filelen % sizeof(*in))
1047                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1048         count = l->filelen / sizeof(*in);
1049         out = Hunk_AllocName ( count*sizeof(*out), va("%s surfedges", loadname));
1050
1051         loadmodel->surfedges = out;
1052         loadmodel->numsurfedges = count;
1053
1054         for ( i=0 ; i<count ; i++)
1055                 out[i] = LittleLong (in[i]);
1056 }
1057
1058
1059 /*
1060 =================
1061 Mod_LoadPlanes
1062 =================
1063 */
1064 void Mod_LoadPlanes (lump_t *l)
1065 {
1066         int                     i, j;
1067         mplane_t        *out;
1068         dplane_t        *in;
1069         int                     count;
1070         int                     bits;
1071
1072         in = (void *)(mod_base + l->fileofs);
1073         if (l->filelen % sizeof(*in))
1074                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1075         count = l->filelen / sizeof(*in);
1076         out = Hunk_AllocName ( count*2*sizeof(*out), va("%s planes", loadname));
1077
1078         loadmodel->planes = out;
1079         loadmodel->numplanes = count;
1080
1081         for ( i=0 ; i<count ; i++, in++, out++)
1082         {
1083                 bits = 0;
1084                 for (j=0 ; j<3 ; j++)
1085                 {
1086                         out->normal[j] = LittleFloat (in->normal[j]);
1087 //                      if (out->normal[j] < 0)
1088 //                              bits |= 1<<j;
1089                 }
1090
1091                 out->dist = LittleFloat (in->dist);
1092                 out->type = LittleLong (in->type);
1093 //              out->signbits = bits;
1094                 BoxOnPlaneSideClassify(out);
1095         }
1096 }
1097
1098 /*
1099 =================
1100 Mod_LoadBrushModel
1101 =================
1102 */
1103 void Mod_LoadBrushModel (model_t *mod, void *buffer)
1104 {
1105         int                     i, j;
1106         dheader_t       *header;
1107         dmodel_t        *bm;
1108
1109         loadmodel->type = mod_brush;
1110
1111         header = (dheader_t *)buffer;
1112
1113         i = LittleLong (header->version);
1114         if (i != BSPVERSION && i != 30)
1115                 Host_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i or 30 (HalfLife))", mod->name, i, BSPVERSION);
1116         hlbsp = i == 30;
1117         halflifebsp.value = hlbsp;
1118
1119 // swap all the lumps
1120         mod_base = (byte *)header;
1121
1122         for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
1123                 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
1124
1125 // load into heap
1126
1127         // LordHavoc: had to move entity loading above everything to allow parsing various settings from worldspawn
1128         Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1129
1130         Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
1131         Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
1132         Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
1133         Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]);
1134         Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
1135         Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
1136         Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
1137         Mod_LoadFaces (&header->lumps[LUMP_FACES]);
1138         Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]);
1139         Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
1140         Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
1141         Mod_LoadNodes (&header->lumps[LUMP_NODES]);
1142         Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]);
1143 //      Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1144         Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
1145
1146         Mod_MakeHull0 ();
1147
1148         mod->numframes = 2;             // regular and alternate animation
1149
1150 //
1151 // set up the submodels (FIXME: this is confusing)
1152 //
1153         for (i=0 ; i<mod->numsubmodels ; i++)
1154         {
1155                 bm = &mod->submodels[i];
1156
1157                 mod->hulls[0].firstclipnode = bm->headnode[0];
1158                 for (j=1 ; j<MAX_MAP_HULLS ; j++)
1159                 {
1160                         mod->hulls[j].firstclipnode = bm->headnode[j];
1161                         mod->hulls[j].lastclipnode = mod->numclipnodes-1;
1162                 }
1163
1164                 mod->firstmodelsurface = bm->firstface;
1165                 mod->nummodelsurfaces = bm->numfaces;
1166
1167                 VectorCopy (bm->maxs, mod->maxs);
1168                 VectorCopy (bm->mins, mod->mins);
1169
1170                 mod->radius = RadiusFromBounds (mod->mins, mod->maxs);
1171
1172                 mod->numleafs = bm->visleafs;
1173
1174                 if (isworldmodel && i < (mod->numsubmodels-1)) // LordHavoc: only register submodels if it is the world (prevents bsp models from replacing world submodels)
1175                 {       // duplicate the basic information
1176                         char    name[10];
1177
1178                         sprintf (name, "*%i", i+1);
1179                         loadmodel = Mod_FindName (name);
1180                         *loadmodel = *mod;
1181                         strcpy (loadmodel->name, name);
1182                         mod = loadmodel;
1183                 }
1184         }
1185 }