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] == 0 && out[1] == 0 && out[2] == 255) // HL transparent color (pure blue)
 197                                                 {
 198                                                         out[0] = out[1] = out[2] = out[3] = 0;
 199                                                         transparent = TRUE;
 200                                                 }
 201                                                 out += 4;
 202                                         }
 203                                 }
 204                                 else if (r_fullbrights.value && tx->name[0] != '*')
 205                                 {
 206                                         for (j = 0;j < tx->width*tx->height;j++)
 207                                         {
 208                                                 if (data[j] >= 224) // fullbright
 209                                                 {
 210                                                         fullbrights = TRUE;
 211                                                         break;
 212                                                 }
 213                                         }
 214                                 }
 215                         }
 216                         else // no texture, and no external replacement texture was found
 217                         {
 218                                 tx->width = tx->height = 16;
 219                                 data = (byte *)((int) r_notexture_mip + r_notexture_mip->offsets[0]);
 220                         }
 221                 }
 222                 else
 223                 {
 224                         tx->width = image_width;
 225                         tx->height = image_height;
 226                 }
 227                 if (!hlbsp && !strncmp(tx->name,"sky",3) && tx->width == 256 && tx->height == 128) // LordHavoc: HL sky textures are entirely unrelated
 228                 {
 229                         tx->transparent = FALSE;
 230                         R_InitSky (data, bytesperpixel);
 231                 }
 232                 else
 233                 {
 234                         if (fullbrights)
 235                         {
 236                                 char name[64];
 237                                 byte *data2;
 238                                 tx->transparent = false;
 239                                 data2 = qmalloc(tx->width*tx->height);
 240                                 for (j = 0;j < tx->width*tx->height;j++)
 241                                         data2[j] = data[j] >= 224 ? 0 : data[j]; // no fullbrights
 242                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data2, true, false, 1);
 243                                 strcpy(name, tx->name);
 244                                 strcat(name, "_glow");
 245                                 for (j = 0;j < tx->width*tx->height;j++)
 246                                         data2[j] = data[j] >= 224 ? data[j] : 0; // only fullbrights
 247                                 tx->gl_glowtexturenum = GL_LoadTexture (name, tx->width, tx->height, data2, true, false, 1);
 248                                 qfree(data2);
 249                         }
 250                         else
 251                         {
 252                                 tx->transparent = transparent;
 253                                 tx->gl_texturenum = GL_LoadTexture (tx->name, tx->width, tx->height, data, true, transparent, bytesperpixel);
 254                                 tx->gl_glowtexturenum = 0;
 255                         }
 256                 }
 257                 if (freeimage)
 258                         qfree(data);
 259         }
 260
 261 //
 262 // sequence the animations
 263 //
 264         for (i=0 ; i<m->nummiptex ; i++)
 265         {
 266                 tx = loadmodel->textures[i];
 267                 if (!tx || tx->name[0] != '+')
 268                         continue;
 269                 if (tx->anim_next)
 270                         continue;       // allready sequenced
 271
 272         // find the number of frames in the animation
 273                 memset (anims, 0, sizeof(anims));
 274                 memset (altanims, 0, sizeof(altanims));
 275
 276                 max = tx->name[1];
 277                 altmax = 0;
 278                 if (max >= 'a' && max <= 'z')
 279                         max -= 'a' - 'A';
 280                 if (max >= '0' && max <= '9')
 281                 {
 282                         max -= '0';
 283                         altmax = 0;
 284                         anims[max] = tx;
 285                         max++;
 286                 }
 287                 else if (max >= 'A' && max <= 'J')
 288                 {
 289                         altmax = max - 'A';
 290                         max = 0;
 291                         altanims[altmax] = tx;
 292                         altmax++;
 293                 }
 294                 else
 295                         Host_Error ("Bad animating texture %s", tx->name);
 296
 297                 for (j=i+1 ; j<m->nummiptex ; j++)
 298                 {
 299                         tx2 = loadmodel->textures[j];
 300                         if (!tx2 || tx2->name[0] != '+')
 301                                 continue;
 302                         if (strcmp (tx2->name+2, tx->name+2))
 303                                 continue;
 304
 305                         num = tx2->name[1];
 306                         if (num >= 'a' && num <= 'z')
 307                                 num -= 'a' - 'A';
 308                         if (num >= '0' && num <= '9')
 309                         {
 310                                 num -= '0';
 311                                 anims[num] = tx2;
 312                                 if (num+1 > max)
 313                                         max = num + 1;
 314                         }
 315                         else if (num >= 'A' && num <= 'J')
 316                         {
 317                                 num = num - 'A';
 318                                 altanims[num] = tx2;
 319                                 if (num+1 > altmax)
 320                                         altmax = num+1;
 321                         }
 322                         else
 323                                 Host_Error ("Bad animating texture %s", tx->name);
 324                 }
 325
 326 #define ANIM_CYCLE      2
 327         // link them all together
 328                 for (j=0 ; j<max ; j++)
 329                 {
 330                         tx2 = anims[j];
 331                         if (!tx2)
 332                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 333                         tx2->anim_total = max * ANIM_CYCLE;
 334                         tx2->anim_min = j * ANIM_CYCLE;
 335                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 336                         tx2->anim_next = anims[ (j+1)%max ];
 337                         if (altmax)
 338                                 tx2->alternate_anims = altanims[0];
 339                 }
 340                 for (j=0 ; j<altmax ; j++)
 341                 {
 342                         tx2 = altanims[j];
 343                         if (!tx2)
 344                                 Host_Error ("Missing frame %i of %s",j, tx->name);
 345                         tx2->anim_total = altmax * ANIM_CYCLE;
 346                         tx2->anim_min = j * ANIM_CYCLE;
 347                         tx2->anim_max = (j+1) * ANIM_CYCLE;
 348                         tx2->anim_next = altanims[ (j+1)%altmax ];
 349                         if (max)
 350                                 tx2->alternate_anims = anims[0];
 351                 }
 352         }
 353 }
 354
 355 /*
 356 =================
 357 Mod_LoadLighting
 358 =================
 359 */
 360 void Mod_LoadLighting (lump_t *l)
 361 {
 362         int i;
 363         byte *in, *out, *data;
 364         byte d;
 365         char litfilename[1024];
 366         loadmodel->lightdata = NULL;
 367         if (hlbsp) // LordHavoc: load the colored lighting data straight
 368         {
 369                 loadmodel->lightdata = Hunk_AllocName ( l->filelen, va("%s lightmaps", loadname));
 370                 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
 371         }
 372         else // LordHavoc: bsp version 29 (normal white lighting)
 373         {
 374                 // LordHavoc: hope is not lost yet, check for a .lit file to load
 375                 strcpy(litfilename, loadmodel->name);
 376                 COM_StripExtension(litfilename, litfilename);
 377                 strcat(litfilename, ".lit");
 378                 data = (byte*) COM_LoadHunkFile (litfilename, false);
 379                 if (data)
 380                 {
 381                         if (data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
 382                         {
 383                                 i = LittleLong(((int *)data)[1]);
 384                                 if (i == 1)
 385                                 {
 386                                         Con_DPrintf("%s loaded", litfilename);
 387                                         loadmodel->lightdata = data + 8;
 388                                         return;
 389                                 }
 390                                 else
 391                                         Con_Printf("Unknown .lit file version (%d)\n", i);
 392                         }
 393                         else
 394                                 Con_Printf("Corrupt .lit file (old version?), ignoring\n");
 395                 }
 396                 // LordHavoc: oh well, expand the white lighting data
 397                 if (!l->filelen)
 398                         return;
 399                 loadmodel->lightdata = Hunk_AllocName ( l->filelen*3, va("%s lightmaps", loadname));
 400                 in = loadmodel->lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
 401                 out = loadmodel->lightdata;
 402                 memcpy (in, mod_base + l->fileofs, l->filelen);
 403                 for (i = 0;i < l->filelen;i++)
 404                 {
 405                         d = *in++;
 406                         *out++ = d;
 407                         *out++ = d;
 408                         *out++ = d;
 409                 }
 410         }
 411 }
 412
 413
 414 /*
 415 =================
 416 Mod_LoadVisibility
 417 =================
 418 */
 419 void Mod_LoadVisibility (lump_t *l)
 420 {
 421         if (!l->filelen)
 422         {
 423                 loadmodel->visdata = NULL;
 424                 return;
 425         }
 426         loadmodel->visdata = Hunk_AllocName ( l->filelen, va("%s visdata", loadname));
 427         memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
 428 }
 429
 430 void CL_ParseEntityLump(char *entdata);
 431
 432 extern qboolean isworldmodel;
 433
 434 /*
 435 =================
 436 Mod_LoadEntities
 437 =================
 438 */
 439 void Mod_LoadEntities (lump_t *l)
 440 {
 441         if (!l->filelen)
 442         {
 443                 loadmodel->entities = NULL;
 444                 return;
 445         }
 446         loadmodel->entities = Hunk_AllocName ( l->filelen, va("%s entities", loadname));
 447         memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen);
 448
 449         if (isworldmodel)
 450                 CL_ParseEntityLump(loadmodel->entities);
 451 }
 452
 453
 454 /*
 455 =================
 456 Mod_LoadVertexes
 457 =================
 458 */
 459 void Mod_LoadVertexes (lump_t *l)
 460 {
 461         dvertex_t       *in;
 462         mvertex_t       *out;
 463         int                     i, count;
 464
 465         in = (void *)(mod_base + l->fileofs);
 466         if (l->filelen % sizeof(*in))
 467                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 468         count = l->filelen / sizeof(*in);
 469         out = Hunk_AllocName ( count*sizeof(*out), va("%s vertices", loadname));
 470
 471         loadmodel->vertexes = out;
 472         loadmodel->numvertexes = count;
 473
 474         for ( i=0 ; i<count ; i++, in++, out++)
 475         {
 476                 out->position[0] = LittleFloat (in->point[0]);
 477                 out->position[1] = LittleFloat (in->point[1]);
 478                 out->position[2] = LittleFloat (in->point[2]);
 479         }
 480 }
 481
 482 /*
 483 =================
 484 Mod_LoadSubmodels
 485 =================
 486 */
 487 void Mod_LoadSubmodels (lump_t *l)
 488 {
 489         dmodel_t        *in;
 490         dmodel_t        *out;
 491         int                     i, j, count;
 492
 493         in = (void *)(mod_base + l->fileofs);
 494         if (l->filelen % sizeof(*in))
 495                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 496         count = l->filelen / sizeof(*in);
 497         out = Hunk_AllocName ( count*sizeof(*out), va("%s submodels", loadname));
 498
 499         loadmodel->submodels = out;
 500         loadmodel->numsubmodels = count;
 501
 502         for ( i=0 ; i<count ; i++, in++, out++)
 503         {
 504                 for (j=0 ; j<3 ; j++)
 505                 {       // spread the mins / maxs by a pixel
 506                         out->mins[j] = LittleFloat (in->mins[j]) - 1;
 507                         out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
 508                         out->origin[j] = LittleFloat (in->origin[j]);
 509                 }
 510                 for (j=0 ; j<MAX_MAP_HULLS ; j++)
 511                         out->headnode[j] = LittleLong (in->headnode[j]);
 512                 out->visleafs = LittleLong (in->visleafs);
 513                 out->firstface = LittleLong (in->firstface);
 514                 out->numfaces = LittleLong (in->numfaces);
 515         }
 516 }
 517
 518 /*
 519 =================
 520 Mod_LoadEdges
 521 =================
 522 */
 523 void Mod_LoadEdges (lump_t *l)
 524 {
 525         dedge_t *in;
 526         medge_t *out;
 527         int     i, count;
 528
 529         in = (void *)(mod_base + l->fileofs);
 530         if (l->filelen % sizeof(*in))
 531                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 532         count = l->filelen / sizeof(*in);
 533         out = Hunk_AllocName ( (count + 1) * sizeof(*out), va("%s edges", loadname));
 534
 535         loadmodel->edges = out;
 536         loadmodel->numedges = count;
 537
 538         for ( i=0 ; i<count ; i++, in++, out++)
 539         {
 540                 out->v[0] = (unsigned short)LittleShort(in->v[0]);
 541                 out->v[1] = (unsigned short)LittleShort(in->v[1]);
 542         }
 543 }
 544
 545 /*
 546 =================
 547 Mod_LoadTexinfo
 548 =================
 549 */
 550 void Mod_LoadTexinfo (lump_t *l)
 551 {
 552         texinfo_t *in;
 553         mtexinfo_t *out;
 554         int     i, j, k, count;
 555         int             miptex;
 556         float   len1, len2;
 557
 558         in = (void *)(mod_base + l->fileofs);
 559         if (l->filelen % sizeof(*in))
 560                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 561         count = l->filelen / sizeof(*in);
 562         out = Hunk_AllocName ( count*sizeof(*out), va("%s texinfo", loadname));
 563
 564         loadmodel->texinfo = out;
 565         loadmodel->numtexinfo = count;
 566
 567         for ( i=0 ; i<count ; i++, in++, out++)
 568         {
 569                 for (k=0 ; k<2 ; k++)
 570                         for (j=0 ; j<4 ; j++)
 571                                 out->vecs[k][j] = LittleFloat (in->vecs[k][j]);
 572                 len1 = Length (out->vecs[0]);
 573                 len2 = Length (out->vecs[1]);
 574                 len1 = (len1 + len2)/2;
 575                 if (len1 < 0.32)
 576                         out->mipadjust = 4;
 577                 else if (len1 < 0.49)
 578                         out->mipadjust = 3;
 579                 else if (len1 < 0.99)
 580                         out->mipadjust = 2;
 581                 else
 582                         out->mipadjust = 1;
 583 #if 0
 584                 if (len1 + len2 < 0.001)
 585                         out->mipadjust = 1;             // don't crash
 586                 else
 587                         out->mipadjust = 1 / floor( (len1+len2)/2 + 0.1 );
 588 #endif
 589
 590                 miptex = LittleLong (in->miptex);
 591                 out->flags = LittleLong (in->flags);
 592
 593                 if (!loadmodel->textures)
 594                 {
 595                         out->texture = r_notexture_mip; // checkerboard texture
 596                         out->flags = 0;
 597                         out->texture->transparent = FALSE;
 598                 }
 599                 else
 600                 {
 601                         if (miptex >= loadmodel->numtextures)
 602                                 Host_Error ("miptex >= loadmodel->numtextures");
 603                         out->texture = loadmodel->textures[miptex];
 604                         if (!out->texture)
 605                         {
 606                                 out->texture = r_notexture_mip; // texture not found
 607                                 out->flags = 0;
 608                                 out->texture->transparent = FALSE;
 609                         }
 610                 }
 611         }
 612 }
 613
 614 /*
 615 ================
 616 CalcSurfaceExtents
 617
 618 Fills in s->texturemins[] and s->extents[]
 619 ================
 620 */
 621 void CalcSurfaceExtents (msurface_t *s)
 622 {
 623         float   mins[2], maxs[2], val;
 624         int             i,j, e;
 625         mvertex_t       *v;
 626         mtexinfo_t      *tex;
 627         int             bmins[2], bmaxs[2];
 628
 629         mins[0] = mins[1] = 999999;
 630         maxs[0] = maxs[1] = -99999;
 631
 632         tex = s->texinfo;
 633
 634         for (i=0 ; i<s->numedges ; i++)
 635         {
 636                 e = loadmodel->surfedges[s->firstedge+i];
 637                 if (e >= 0)
 638                         v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
 639                 else
 640                         v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
 641
 642                 for (j=0 ; j<2 ; j++)
 643                 {
 644                         val = v->position[0] * tex->vecs[j][0] +
 645                                 v->position[1] * tex->vecs[j][1] +
 646                                 v->position[2] * tex->vecs[j][2] +
 647                                 tex->vecs[j][3];
 648                         if (val < mins[j])
 649                                 mins[j] = val;
 650                         if (val > maxs[j])
 651                                 maxs[j] = val;
 652                 }
 653         }
 654
 655         for (i=0 ; i<2 ; i++)
 656         {
 657                 bmins[i] = floor(mins[i]/16);
 658                 bmaxs[i] = ceil(maxs[i]/16);
 659
 660                 s->texturemins[i] = bmins[i] * 16;
 661                 s->extents[i] = (bmaxs[i] - bmins[i]) * 16;
 662                 if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ )
 663                         Host_Error ("Bad surface extents");
 664         }
 665 }
 666
 667 void GL_SubdivideSurface (msurface_t *fa);
 668
 669 extern char skyname[];
 670
 671 /*
 672 =================
 673 Mod_LoadFaces
 674 =================
 675 */
 676 void Mod_LoadFaces (lump_t *l)
 677 {
 678         dface_t         *in;
 679         msurface_t      *out;
 680         int                     i, count, surfnum;
 681         int                     planenum, side;
 682
 683         in = (void *)(mod_base + l->fileofs);
 684         if (l->filelen % sizeof(*in))
 685                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 686         count = l->filelen / sizeof(*in);
 687         out = Hunk_AllocName ( count*sizeof(*out), va("%s faces", loadname));
 688
 689         loadmodel->surfaces = out;
 690         loadmodel->numsurfaces = count;
 691
 692         for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
 693         {
 694                 out->firstedge = LittleLong(in->firstedge);
 695                 out->numedges = LittleShort(in->numedges);
 696                 out->flags = 0;
 697
 698                 planenum = LittleShort(in->planenum);
 699                 side = LittleShort(in->side);
 700                 if (side)
 701                         out->flags |= SURF_PLANEBACK;
 702
 703                 out->plane = loadmodel->planes + planenum;
 704
 705                 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo);
 706
 707                 CalcSurfaceExtents (out);
 708
 709         // lighting info
 710
 711                 for (i=0 ; i<MAXLIGHTMAPS ; i++)
 712                         out->styles[i] = in->styles[i];
 713                 i = LittleLong(in->lightofs);
 714                 if (i == -1)
 715                         out->samples = NULL;
 716                 else if (hlbsp) // LordHavoc: HalfLife map (bsp version 30)
 717                         out->samples = loadmodel->lightdata + i;
 718                 else // LordHavoc: white lighting (bsp version 29)
 719                         out->samples = loadmodel->lightdata + (i * 3);
 720
 721         // set the drawing flags flag
 722
 723 //              if (!strncmp(out->texinfo->texture->name,"sky",3))      // sky
 724                 // LordHavoc: faster check
 725                 if ((out->texinfo->texture->name[0] == 's' || out->texinfo->texture->name[0] == 'S')
 726                  && (out->texinfo->texture->name[1] == 'k' || out->texinfo->texture->name[1] == 'K')
 727                  && (out->texinfo->texture->name[2] == 'y' || out->texinfo->texture->name[2] == 'Y'))
 728                 {
 729                         // LordHavoc: for consistency reasons, mark sky as fullbright and solid as well
 730                         out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED | SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 731                         GL_SubdivideSurface (out);      // cut up polygon for warps
 732                         continue;
 733                 }
 734
 735 //              if (!strncmp(out->texinfo->texture->name,"*",1))                // turbulent
 736                 if (out->texinfo->texture->name[0] == '*') // LordHavoc: faster check
 737                 {
 738                         out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED);
 739                         // LordHavoc: some turbulent textures should be fullbright and solid
 740                         if (!strncmp(out->texinfo->texture->name,"*lava",5)
 741                          || !strncmp(out->texinfo->texture->name,"*teleport",9)
 742                          || !strncmp(out->texinfo->texture->name,"*rift",5)) // Scourge of Armagon texture
 743                                 out->flags |= (SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA);
 744                         for (i=0 ; i<2 ; i++)
 745                         {
 746                                 out->extents[i] = 16384;
 747                                 out->texturemins[i] = -8192;
 748                         }
 749                         GL_SubdivideSurface (out);      // cut up polygon for warps
 750                         continue;
 751                 }
 752
 753         }
 754 }
 755
 756
 757 /*
 758 =================
 759 Mod_SetParent
 760 =================
 761 */
 762 void Mod_SetParent (mnode_t *node, mnode_t *parent)
 763 {
 764         node->parent = parent;
 765         if (node->contents < 0)
 766                 return;
 767         Mod_SetParent (node->children[0], node);
 768         Mod_SetParent (node->children[1], node);
 769 }
 770
 771 /*
 772 =================
 773 Mod_LoadNodes
 774 =================
 775 */
 776 void Mod_LoadNodes (lump_t *l)
 777 {
 778         int                     i, j, count, p;
 779         dnode_t         *in;
 780         mnode_t         *out;
 781
 782         in = (void *)(mod_base + l->fileofs);
 783         if (l->filelen % sizeof(*in))
 784                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 785         count = l->filelen / sizeof(*in);
 786         out = Hunk_AllocName ( count*sizeof(*out), va("%s nodes", loadname));
 787
 788         loadmodel->nodes = out;
 789         loadmodel->numnodes = count;
 790
 791         for ( i=0 ; i<count ; i++, in++, out++)
 792         {
 793                 for (j=0 ; j<3 ; j++)
 794                 {
 795                         out->minmaxs[j] = LittleShort (in->mins[j]);
 796                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 797                 }
 798
 799                 p = LittleLong(in->planenum);
 800                 out->plane = loadmodel->planes + p;
 801
 802                 out->firstsurface = LittleShort (in->firstface);
 803                 out->numsurfaces = LittleShort (in->numfaces);
 804
 805                 for (j=0 ; j<2 ; j++)
 806                 {
 807                         p = LittleShort (in->children[j]);
 808                         if (p >= 0)
 809                                 out->children[j] = loadmodel->nodes + p;
 810                         else
 811                                 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
 812                 }
 813         }
 814
 815         Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
 816 }
 817
 818 /*
 819 =================
 820 Mod_LoadLeafs
 821 =================
 822 */
 823 void Mod_LoadLeafs (lump_t *l)
 824 {
 825         dleaf_t         *in;
 826         mleaf_t         *out;
 827         int                     i, j, count, p;
 828
 829         in = (void *)(mod_base + l->fileofs);
 830         if (l->filelen % sizeof(*in))
 831                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 832         count = l->filelen / sizeof(*in);
 833         out = Hunk_AllocName ( count*sizeof(*out), va("%s leafs", loadname));
 834
 835         loadmodel->leafs = out;
 836         loadmodel->numleafs = count;
 837
 838         for ( i=0 ; i<count ; i++, in++, out++)
 839         {
 840                 for (j=0 ; j<3 ; j++)
 841                 {
 842                         out->minmaxs[j] = LittleShort (in->mins[j]);
 843                         out->minmaxs[3+j] = LittleShort (in->maxs[j]);
 844                 }
 845
 846                 p = LittleLong(in->contents);
 847                 out->contents = p;
 848
 849                 out->firstmarksurface = loadmodel->marksurfaces +
 850                         LittleShort(in->firstmarksurface);
 851                 out->nummarksurfaces = LittleShort(in->nummarksurfaces);
 852
 853                 p = LittleLong(in->visofs);
 854                 if (p == -1)
 855                         out->compressed_vis = NULL;
 856                 else
 857                         out->compressed_vis = loadmodel->visdata + p;
 858                 out->efrags = NULL;
 859
 860                 for (j=0 ; j<4 ; j++)
 861                         out->ambient_sound_level[j] = in->ambient_level[j];
 862
 863                 // gl underwater warp
 864                 // LordHavoc: disabled underwater warping
 865                 /*
 866                 if (out->contents != CONTENTS_EMPTY)
 867                 {
 868                         for (j=0 ; j<out->nummarksurfaces ; j++)
 869                                 out->firstmarksurface[j]->flags |= SURF_UNDERWATER;
 870                 }
 871                 */
 872         }
 873 }
 874
 875 /*
 876 =================
 877 Mod_LoadClipnodes
 878 =================
 879 */
 880 void Mod_LoadClipnodes (lump_t *l)
 881 {
 882         dclipnode_t *in, *out;
 883         int                     i, count;
 884         hull_t          *hull;
 885
 886         in = (void *)(mod_base + l->fileofs);
 887         if (l->filelen % sizeof(*in))
 888                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
 889         count = l->filelen / sizeof(*in);
 890         out = Hunk_AllocName ( count*sizeof(*out), va("%s clipnodes", loadname));
 891
 892         loadmodel->clipnodes = out;
 893         loadmodel->numclipnodes = count;
 894
 895         if (hlbsp)
 896         {
 897                 hull = &loadmodel->hulls[1];
 898                 hull->clipnodes = out;
 899                 hull->firstclipnode = 0;
 900                 hull->lastclipnode = count-1;
 901                 hull->planes = loadmodel->planes;
 902                 hull->clip_mins[0] = -16;
 903                 hull->clip_mins[1] = -16;
 904                 hull->clip_mins[2] = -36;
 905                 hull->clip_maxs[0] = 16;
 906                 hull->clip_maxs[1] = 16;
 907                 hull->clip_maxs[2] = 36;
 908
 909                 hull = &loadmodel->hulls[2];
 910                 hull->clipnodes = out;
 911                 hull->firstclipnode = 0;
 912                 hull->lastclipnode = count-1;
 913                 hull->planes = loadmodel->planes;
 914                 hull->clip_mins[0] = -32;
 915                 hull->clip_mins[1] = -32;
 916                 hull->clip_mins[2] = -32;
 917                 hull->clip_maxs[0] = 32;
 918                 hull->clip_maxs[1] = 32;
 919                 hull->clip_maxs[2] = 32;
 920
 921                 hull = &loadmodel->hulls[3];
 922                 hull->clipnodes = out;
 923                 hull->firstclipnode = 0;
 924                 hull->lastclipnode = count-1;
 925                 hull->planes = loadmodel->planes;
 926                 hull->clip_mins[0] = -16;
 927                 hull->clip_mins[1] = -16;
 928                 hull->clip_mins[2] = -18;
 929                 hull->clip_maxs[0] = 16;
 930                 hull->clip_maxs[1] = 16;
 931                 hull->clip_maxs[2] = 18;
 932         }
 933         else
 934         {
 935                 hull = &loadmodel->hulls[1];
 936                 hull->clipnodes = out;
 937                 hull->firstclipnode = 0;
 938                 hull->lastclipnode = count-1;
 939                 hull->planes = loadmodel->planes;
 940                 hull->clip_mins[0] = -16;
 941                 hull->clip_mins[1] = -16;
 942                 hull->clip_mins[2] = -24;
 943                 hull->clip_maxs[0] = 16;
 944                 hull->clip_maxs[1] = 16;
 945                 hull->clip_maxs[2] = 32;
 946
 947                 hull = &loadmodel->hulls[2];
 948                 hull->clipnodes = out;
 949                 hull->firstclipnode = 0;
 950                 hull->lastclipnode = count-1;
 951                 hull->planes = loadmodel->planes;
 952                 hull->clip_mins[0] = -32;
 953                 hull->clip_mins[1] = -32;
 954                 hull->clip_mins[2] = -24;
 955                 hull->clip_maxs[0] = 32;
 956                 hull->clip_maxs[1] = 32;
 957                 hull->clip_maxs[2] = 64;
 958         }
 959
 960         for (i=0 ; i<count ; i++, out++, in++)
 961         {
 962                 out->planenum = LittleLong(in->planenum);
 963                 out->children[0] = LittleShort(in->children[0]);
 964                 out->children[1] = LittleShort(in->children[1]);
 965                 if (out->children[0] >= count || out->children[1] >= count)
 966                         Host_Error("Corrupt clipping hull (out of range child)\n");
 967         }
 968 }
 969
 970 /*
 971 =================
 972 Mod_MakeHull0
 973
 974 Duplicate the drawing hull structure as a clipping hull
 975 =================
 976 */
 977 void Mod_MakeHull0 (void)
 978 {
 979         mnode_t         *in, *child;
 980         dclipnode_t *out;
 981         int                     i, j, count;
 982         hull_t          *hull;
 983
 984         hull = &loadmodel->hulls[0];
 985
 986         in = loadmodel->nodes;
 987         count = loadmodel->numnodes;
 988         out = Hunk_AllocName ( count*sizeof(*out), va("%s hull0", loadname));
 989
 990         hull->clipnodes = out;
 991         hull->firstclipnode = 0;
 992         hull->lastclipnode = count-1;
 993         hull->planes = loadmodel->planes;
 994
 995         for (i=0 ; i<count ; i++, out++, in++)
 996         {
 997                 out->planenum = in->plane - loadmodel->planes;
 998                 for (j=0 ; j<2 ; j++)
 999                 {
1000                         child = in->children[j];
1001                         if (child->contents < 0)
1002                                 out->children[j] = child->contents;
1003                         else
1004                                 out->children[j] = child - loadmodel->nodes;
1005                 }
1006         }
1007 }
1008
1009 /*
1010 =================
1011 Mod_LoadMarksurfaces
1012 =================
1013 */
1014 void Mod_LoadMarksurfaces (lump_t *l)
1015 {
1016         int             i, j, count;
1017         short           *in;
1018         msurface_t **out;
1019
1020         in = (void *)(mod_base + l->fileofs);
1021         if (l->filelen % sizeof(*in))
1022                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1023         count = l->filelen / sizeof(*in);
1024         out = Hunk_AllocName ( count*sizeof(*out), va("%s marksurfaces", loadname));
1025
1026         loadmodel->marksurfaces = out;
1027         loadmodel->nummarksurfaces = count;
1028
1029         for ( i=0 ; i<count ; i++)
1030         {
1031                 j = LittleShort(in[i]);
1032                 if (j >= loadmodel->numsurfaces)
1033                         Host_Error ("Mod_ParseMarksurfaces: bad surface number");
1034                 out[i] = loadmodel->surfaces + j;
1035         }
1036 }
1037
1038 /*
1039 =================
1040 Mod_LoadSurfedges
1041 =================
1042 */
1043 void Mod_LoadSurfedges (lump_t *l)
1044 {
1045         int             i, count;
1046         int             *in, *out;
1047
1048         in = (void *)(mod_base + l->fileofs);
1049         if (l->filelen % sizeof(*in))
1050                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1051         count = l->filelen / sizeof(*in);
1052         out = Hunk_AllocName ( count*sizeof(*out), va("%s surfedges", loadname));
1053
1054         loadmodel->surfedges = out;
1055         loadmodel->numsurfedges = count;
1056
1057         for ( i=0 ; i<count ; i++)
1058                 out[i] = LittleLong (in[i]);
1059 }
1060
1061
1062 /*
1063 =================
1064 Mod_LoadPlanes
1065 =================
1066 */
1067 void Mod_LoadPlanes (lump_t *l)
1068 {
1069         int                     i, j;
1070         mplane_t        *out;
1071         dplane_t        *in;
1072         int                     count;
1073         int                     bits;
1074
1075         in = (void *)(mod_base + l->fileofs);
1076         if (l->filelen % sizeof(*in))
1077                 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1078         count = l->filelen / sizeof(*in);
1079         out = Hunk_AllocName ( count*2*sizeof(*out), va("%s planes", loadname));
1080
1081         loadmodel->planes = out;
1082         loadmodel->numplanes = count;
1083
1084         for ( i=0 ; i<count ; i++, in++, out++)
1085         {
1086                 bits = 0;
1087                 for (j=0 ; j<3 ; j++)
1088                 {
1089                         out->normal[j] = LittleFloat (in->normal[j]);
1090 //                      if (out->normal[j] < 0)
1091 //                              bits |= 1<<j;
1092                 }
1093
1094                 out->dist = LittleFloat (in->dist);
1095                 out->type = LittleLong (in->type);
1096 //              out->signbits = bits;
1097                 BoxOnPlaneSideClassify(out);
1098         }
1099 }
1100
1101 /*
1102 =================
1103 Mod_LoadBrushModel
1104 =================
1105 */
1106 void Mod_LoadBrushModel (model_t *mod, void *buffer)
1107 {
1108         int                     i, j;
1109         dheader_t       *header;
1110         dmodel_t        *bm;
1111
1112         loadmodel->type = mod_brush;
1113
1114         header = (dheader_t *)buffer;
1115
1116         i = LittleLong (header->version);
1117         if (i != BSPVERSION && i != 30)
1118                 Host_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i or 30 (HalfLife))", mod->name, i, BSPVERSION);
1119         hlbsp = i == 30;
1120         halflifebsp.value = hlbsp;
1121
1122 // swap all the lumps
1123         mod_base = (byte *)header;
1124
1125         for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
1126                 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
1127
1128 // load into heap
1129
1130         // LordHavoc: had to move entity loading above everything to allow parsing various settings from worldspawn
1131         Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1132
1133         Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
1134         Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
1135         Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
1136         Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]);
1137         Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
1138         Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
1139         Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
1140         Mod_LoadFaces (&header->lumps[LUMP_FACES]);
1141         Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]);
1142         Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
1143         Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
1144         Mod_LoadNodes (&header->lumps[LUMP_NODES]);
1145         Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]);
1146 //      Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
1147         Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
1148
1149         Mod_MakeHull0 ();
1150
1151         mod->numframes = 2;             // regular and alternate animation
1152
1153 //
1154 // set up the submodels (FIXME: this is confusing)
1155 //
1156         for (i=0 ; i<mod->numsubmodels ; i++)
1157         {
1158                 bm = &mod->submodels[i];
1159
1160                 mod->hulls[0].firstclipnode = bm->headnode[0];
1161                 for (j=1 ; j<MAX_MAP_HULLS ; j++)
1162                 {
1163                         mod->hulls[j].firstclipnode = bm->headnode[j];
1164                         mod->hulls[j].lastclipnode = mod->numclipnodes-1;
1165                 }
1166
1167                 mod->firstmodelsurface = bm->firstface;
1168                 mod->nummodelsurfaces = bm->numfaces;
1169
1170                 VectorCopy (bm->maxs, mod->maxs);
1171                 VectorCopy (bm->mins, mod->mins);
1172
1173                 mod->radius = RadiusFromBounds (mod->mins, mod->maxs);
1174
1175                 mod->numleafs = bm->visleafs;
1176
1177                 if (isworldmodel && i < (mod->numsubmodels-1)) // LordHavoc: only register submodels if it is the world (prevents bsp models from replacing world submodels)
1178                 {       // duplicate the basic information
1179                         char    name[10];
1180
1181                         sprintf (name, "*%i", i+1);
1182                         loadmodel = Mod_FindName (name);
1183                         *loadmodel = *mod;
1184                         strcpy (loadmodel->name, name);
1185                         mod = loadmodel;
1186                 }
1187         }
1188 }