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 // models.c -- model loading and caching 21 22 // models are the only shared resource between a client and server running 23 // on the same machine. 24 25 #include "quakedef.h" 26 27 model_t *loadmodel; 28 char loadname[32]; // for hunk tags 29 30 void Mod_LoadSpriteModel (model_t *mod, void *buffer); 31 void Mod_LoadBrushModel (model_t *mod, void *buffer); 32 void Mod_LoadAliasModel (model_t *mod, void *buffer); 33 model_t *Mod_LoadModel (model_t *mod, qboolean crash); 34 35 byte mod_novis[MAX_MAP_LEAFS/8]; 36 37 #define MAX_MOD_KNOWN 512 38 model_t mod_known[MAX_MOD_KNOWN]; 39 int mod_numknown; 40 41 cvar_t gl_subdivide_size = CVAR3("gl_subdivide_size", "128", true); 42 43 /* 44 =============== 45 Mod_Init 46 =============== 47 */ 48 void Mod_Init (void) 49 { 50 Cvar_RegisterVariable (&gl_subdivide_size); 51 memset (mod_novis, 0xff, sizeof(mod_novis)); 52 } 53 54 /* 55 =============== 56 Mod_Init 57 58 Caches the data if needed 59 =============== 60 */ 61 void *Mod_Extradata (model_t *mod) 62 { 63 void *r; 64 65 r = Cache_Check (&mod->cache); 66 if (r) 67 return r; 68 69 Mod_LoadModel (mod, true); 70 71 if (!mod->cache.data) 72 Sys_Error ("Mod_Extradata: caching failed"); 73 return mod->cache.data; 74 } 75 76 /* 77 =============== 78 Mod_PointInLeaf 79 =============== 80 */ 81 mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model) 82 { 83 mnode_t *node; 84 float d; 85 mplane_t *plane; 86 87 if (!model || !model->nodes) 88 Sys_Error ("Mod_PointInLeaf: bad model"); 89 90 node = model->nodes; 91 while (1) 92 { 93 if (node->contents < 0) 94 return (mleaf_t *)node; 95 plane = node->plane; 96 d = DotProduct (p,plane->normal) - plane->dist; 97 if (d > 0) 98 node = node->children[0]; 99 else 100 node = node->children[1]; 101 } 102 103 return NULL; // never reached 104 } 105 106 107 /* 108 =================== 109 Mod_DecompressVis 110 =================== 111 */ 112 byte *Mod_DecompressVis (byte *in, model_t *model) 113 { 114 static byte decompressed[MAX_MAP_LEAFS/8]; 115 int c; 116 byte *out; 117 int row; 118 119 row = (model->numleafs+7)>>3; 120 out = decompressed; 121 122 #if 0 123 memcpy (out, in, row); 124 #else 125 if (!in) 126 { // no vis info, so make all visible 127 while (row) 128 { 129 *out++ = 0xff; 130 row--; 131 } 132 return decompressed; 133 } 134 135 do 136 { 137 if (*in) 138 { 139 *out++ = *in++; 140 continue; 141 } 142 143 c = in[1]; 144 in += 2; 145 while (c) 146 { 147 *out++ = 0; 148 c--; 149 } 150 } while (out - decompressed < row); 151 #endif 152 153 return decompressed; 154 } 155 156 byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model) 157 { 158 if (leaf == model->leafs) 159 return mod_novis; 160 return Mod_DecompressVis (leaf->compressed_vis, model); 161 } 162 163 /* 164 =================== 165 Mod_ClearAll 166 =================== 167 */ 168 void Mod_ClearAll (void) 169 { 170 int i; 171 model_t *mod; 172 173 for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) 174 if (mod->type != mod_alias) 175 mod->needload = true; 176 } 177 178 /* 179 ================== 180 Mod_FindName 181 182 ================== 183 */ 184 model_t *Mod_FindName (const char *name) 185 { 186 int i; 187 model_t *mod; 188 189 if (!name[0]) 190 Sys_Error ("Mod_ForName: NULL name"); 191 192 // 193 // search the currently loaded models 194 // 195 for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) 196 if (!strcmp (mod->name, name) ) 197 break; 198 199 if (i == mod_numknown) 200 { 201 if (mod_numknown == MAX_MOD_KNOWN) 202 Sys_Error ("mod_numknown == MAX_MOD_KNOWN"); 203 strcpy (mod->name, name); 204 mod->needload = true; 205 mod_numknown++; 206 } 207 208 return mod; 209 } 210 211 /* 212 ================== 213 Mod_TouchModel 214 215 ================== 216 */ 217 void Mod_TouchModel (const char *name) 218 { 219 model_t *mod; 220 221 mod = Mod_FindName (name); 222 223 if (!mod->needload) 224 { 225 if (mod->type == mod_alias) 226 Cache_Check (&mod->cache); 227 } 228 } 229 230 /* 231 ================== 232 Mod_LoadModel 233 234 Loads a model into the cache 235 ================== 236 */ 237 model_t *Mod_LoadModel (model_t *mod, qboolean crash) 238 { 239 void *d; 240 unsigned *buf; 241 byte stackbuf[1024]; // avoid dirtying the cache heap 242 243 if (!mod->needload) 244 { 245 if (mod->type == mod_alias) 246 { 247 d = Cache_Check (&mod->cache); 248 if (d) 249 return mod; 250 } 251 else 252 return mod; // not cached at all 253 } 254 255 // 256 // because the world is so huge, load it one piece at a time 257 // 258 if (!crash) 259 { 260 261 } 262 263 // 264 // load the file 265 // 266 buf = (unsigned *)COM_LoadStackFile (mod->name, stackbuf, sizeof(stackbuf)); 267 if (!buf) 268 { 269 if (crash) 270 Sys_Error ("Mod_NumForName: %s not found", mod->name); 271 return NULL; 272 } 273 274 // 275 // allocate a new model 276 // 277 COM_FileBase (mod->name, loadname, sizeof(loadname)); 278 279 loadmodel = mod; 280 281 // 282 // fill it in 283 // 284 285 // call the apropriate loader 286 mod->needload = false; 287 288 switch (LittleLong(*(unsigned *)buf)) 289 { 290 case IDPOLYHEADER: 291 Mod_LoadAliasModel (mod, buf); 292 break; 293 294 case IDSPRITEHEADER: 295 Mod_LoadSpriteModel (mod, buf); 296 break; 297 298 default: 299 Mod_LoadBrushModel (mod, buf); 300 break; 301 } 302 303 return mod; 304 } 305 306 /* 307 ================== 308 Mod_ForName 309 310 Loads in a model for the given name 311 ================== 312 */ 313 model_t *Mod_ForName (const char *name, qboolean crash) 314 { 315 model_t *mod; 316 317 mod = Mod_FindName (name); 318 319 return Mod_LoadModel (mod, crash); 320 } 321 322 323 /* 324 =============================================================================== 325 326 BRUSHMODEL LOADING 327 328 =============================================================================== 329 */ 330 331 byte *mod_base; 332 333 334 /* 335 ================= 336 Mod_LoadTextures 337 ================= 338 */ 339 void Mod_LoadTextures (lump_t *l) 340 { 341 int i, j, pixels, num, max, altmax; 342 miptex_t *mt; 343 texture_t *tx, *tx2; 344 texture_t *anims[10]; 345 texture_t *altanims[10]; 346 dmiptexlump_t *m; 347 348 if (!l->filelen) 349 { 350 loadmodel->textures = NULL; 351 return; 352 } 353 m = (dmiptexlump_t *)(mod_base + l->fileofs); 354 355 m->nummiptex = LittleLong (m->nummiptex); 356 357 loadmodel->numtextures = m->nummiptex; 358 loadmodel->textures = (texture_t**) Hunk_AllocName (m->nummiptex * sizeof(*loadmodel->textures) , loadname); 359 360 for (i=0 ; i<m->nummiptex ; i++) 361 { 362 m->dataofs[i] = LittleLong(m->dataofs[i]); 363 if (m->dataofs[i] == -1) 364 continue; 365 mt = (miptex_t *)((byte *)m + m->dataofs[i]); 366 mt->width = LittleLong (mt->width); 367 mt->height = LittleLong (mt->height); 368 for (j=0 ; j<MIPLEVELS ; j++) 369 mt->offsets[j] = LittleLong (mt->offsets[j]); 370 371 if ( (mt->width & 15) || (mt->height & 15) ) 372 Sys_Error ("Texture %s is not 16 aligned", mt->name); 373 pixels = mt->width*mt->height/64*85; 374 tx = (texture_t*) Hunk_AllocName (sizeof(texture_t) +pixels, loadname ); 375 loadmodel->textures[i] = tx; 376 377 memcpy (tx->name, mt->name, sizeof(tx->name)); 378 tx->width = mt->width; 379 tx->height = mt->height; 380 for (j=0 ; j<MIPLEVELS ; j++) 381 tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t); 382 // the pixels immediately follow the structures 383 memcpy ( tx+1, mt+1, pixels); 384 385 386 if (!Q_strncmp(mt->name,"sky",3)) 387 R_InitSky (tx); 388 else 389 { 390 texture_mode = GL_LINEAR_MIPMAP_NEAREST; //_LINEAR; 391 tx->gl_texturenum = GL_LoadTexture (mt->name, tx->width, tx->height, (byte *)(tx+1), true, false); 392 texture_mode = GL_LINEAR; 393 } 394 } 395 396 // 397 // sequence the animations 398 // 399 for (i=0 ; i<m->nummiptex ; i++) 400 { 401 tx = loadmodel->textures[i]; 402 if (!tx || tx->name[0] != '+') 403 continue; 404 if (tx->anim_next) 405 continue; // allready sequenced 406 407 // find the number of frames in the animation 408 memset (anims, 0, sizeof(anims)); 409 memset (altanims, 0, sizeof(altanims)); 410 411 max = tx->name[1]; 412 altmax = 0; 413 if (max >= 'a' && max <= 'z') 414 max -= 'a' - 'A'; 415 if (max >= '0' && max <= '9') 416 { 417 max -= '0'; 418 altmax = 0; 419 anims[max] = tx; 420 max++; 421 } 422 else if (max >= 'A' && max <= 'J') 423 { 424 altmax = max - 'A'; 425 max = 0; 426 altanims[altmax] = tx; 427 altmax++; 428 } 429 else 430 Sys_Error ("Bad animating texture %s", tx->name); 431 432 for (j=i+1 ; j<m->nummiptex ; j++) 433 { 434 tx2 = loadmodel->textures[j]; 435 if (!tx2 || tx2->name[0] != '+') 436 continue; 437 if (strcmp (tx2->name+2, tx->name+2)) 438 continue; 439 440 num = tx2->name[1]; 441 if (num >= 'a' && num <= 'z') 442 num -= 'a' - 'A'; 443 if (num >= '0' && num <= '9') 444 { 445 num -= '0'; 446 anims[num] = tx2; 447 if (num+1 > max) 448 max = num + 1; 449 } 450 else if (num >= 'A' && num <= 'J') 451 { 452 num = num - 'A'; 453 altanims[num] = tx2; 454 if (num+1 > altmax) 455 altmax = num+1; 456 } 457 else 458 Sys_Error ("Bad animating texture %s", tx->name); 459 } 460 461 #define ANIM_CYCLE 2 462 // link them all together 463 for (j=0 ; j<max ; j++) 464 { 465 tx2 = anims[j]; 466 if (!tx2) 467 Sys_Error ("Missing frame %i of %s",j, tx->name); 468 tx2->anim_total = max * ANIM_CYCLE; 469 tx2->anim_min = j * ANIM_CYCLE; 470 tx2->anim_max = (j+1) * ANIM_CYCLE; 471 tx2->anim_next = anims[ (j+1)%max ]; 472 if (altmax) 473 tx2->alternate_anims = altanims[0]; 474 } 475 for (j=0 ; j<altmax ; j++) 476 { 477 tx2 = altanims[j]; 478 if (!tx2) 479 Sys_Error ("Missing frame %i of %s",j, tx->name); 480 tx2->anim_total = altmax * ANIM_CYCLE; 481 tx2->anim_min = j * ANIM_CYCLE; 482 tx2->anim_max = (j+1) * ANIM_CYCLE; 483 tx2->anim_next = altanims[ (j+1)%altmax ]; 484 if (max) 485 tx2->alternate_anims = anims[0]; 486 } 487 } 488 } 489 490 /* 491 ================= 492 Mod_LoadLighting 493 ================= 494 */ 495 void Mod_LoadLighting (lump_t *l) 496 { 497 if (!l->filelen) 498 { 499 loadmodel->lightdata = NULL; 500 return; 501 } 502 loadmodel->lightdata = (byte*) Hunk_AllocName ( l->filelen, loadname); 503 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen); 504 } 505 506 507 /* 508 ================= 509 Mod_LoadVisibility 510 ================= 511 */ 512 void Mod_LoadVisibility (lump_t *l) 513 { 514 if (!l->filelen) 515 { 516 loadmodel->visdata = NULL; 517 return; 518 } 519 loadmodel->visdata = (byte*) Hunk_AllocName ( l->filelen, loadname); 520 memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen); 521 } 522 523 524 /* 525 ================= 526 Mod_LoadEntities 527 ================= 528 */ 529 void Mod_LoadEntities (lump_t *l) 530 { 531 if (!l->filelen) 532 { 533 loadmodel->entities = NULL; 534 return; 535 } 536 loadmodel->entities = (char*) Hunk_AllocName ( l->filelen, loadname); 537 memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen); 538 } 539 540 541 /* 542 ================= 543 Mod_LoadVertexes 544 ================= 545 */ 546 void Mod_LoadVertexes (lump_t *l) 547 { 548 dvertex_t *in; 549 mvertex_t *out; 550 int i, count; 551 552 in = (dvertex_t*) (void *)(mod_base + l->fileofs); 553 if (l->filelen % sizeof(*in)) 554 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 555 count = l->filelen / sizeof(*in); 556 out = (mvertex_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 557 558 loadmodel->vertexes = out; 559 loadmodel->numvertexes = count; 560 561 for ( i=0 ; i<count ; i++, in++, out++) 562 { 563 out->position[0] = LittleFloat (in->point[0]); 564 out->position[1] = LittleFloat (in->point[1]); 565 out->position[2] = LittleFloat (in->point[2]); 566 } 567 } 568 569 /* 570 ================= 571 Mod_LoadSubmodels 572 ================= 573 */ 574 void Mod_LoadSubmodels (lump_t *l) 575 { 576 dmodel_t *in; 577 dmodel_t *out; 578 int i, j, count; 579 580 in = (dmodel_t*) (void *)(mod_base + l->fileofs); 581 if (l->filelen % sizeof(*in)) 582 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 583 count = l->filelen / sizeof(*in); 584 out =(dmodel_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 585 586 loadmodel->submodels = out; 587 loadmodel->numsubmodels = count; 588 589 for ( i=0 ; i<count ; i++, in++, out++) 590 { 591 for (j=0 ; j<3 ; j++) 592 { // spread the mins / maxs by a pixel 593 out->mins[j] = LittleFloat (in->mins[j]) - 1; 594 out->maxs[j] = LittleFloat (in->maxs[j]) + 1; 595 out->origin[j] = LittleFloat (in->origin[j]); 596 } 597 for (j=0 ; j<MAX_MAP_HULLS ; j++) 598 out->headnode[j] = LittleLong (in->headnode[j]); 599 out->visleafs = LittleLong (in->visleafs); 600 out->firstface = LittleLong (in->firstface); 601 out->numfaces = LittleLong (in->numfaces); 602 } 603 } 604 605 /* 606 ================= 607 Mod_LoadEdges 608 ================= 609 */ 610 void Mod_LoadEdges (lump_t *l) 611 { 612 dedge_t *in; 613 medge_t *out; 614 int i, count; 615 616 in = (dedge_t *) (mod_base + l->fileofs); 617 if (l->filelen % sizeof(*in)) 618 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 619 count = l->filelen / sizeof(*in); 620 out = (medge_t*) Hunk_AllocName ( (count + 1) * sizeof(*out), loadname); 621 622 loadmodel->edges = out; 623 loadmodel->numedges = count; 624 625 for ( i=0 ; i<count ; i++, in++, out++) 626 { 627 out->v[0] = (unsigned short)LittleShort(in->v[0]); 628 out->v[1] = (unsigned short)LittleShort(in->v[1]); 629 } 630 } 631 632 /* 633 ================= 634 Mod_LoadTexinfo 635 ================= 636 */ 637 void Mod_LoadTexinfo (lump_t *l) 638 { 639 texinfo_t *in; 640 mtexinfo_t *out; 641 int i, j, count; 642 int miptex; 643 float len1, len2; 644 645 in = (texinfo_t *)(mod_base + l->fileofs); 646 if (l->filelen % sizeof(*in)) 647 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 648 count = l->filelen / sizeof(*in); 649 out = (mtexinfo_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 650 651 loadmodel->texinfo = out; 652 loadmodel->numtexinfo = count; 653 654 for ( i=0 ; i<count ; i++, in++, out++) 655 { 656 for (j=0 ; j<8 ; j++) 657 out->vecs[0][j] = LittleFloat (in->vecs[0][j]); 658 len1 = Length (out->vecs[0]); 659 len2 = Length (out->vecs[1]); 660 len1 = (len1 + len2)/2; 661 if (len1 < 0.32) 662 out->mipadjust = 4; 663 else if (len1 < 0.49) 664 out->mipadjust = 3; 665 else if (len1 < 0.99) 666 out->mipadjust = 2; 667 else 668 out->mipadjust = 1; 669 #if 0 670 if (len1 + len2 < 0.001) 671 out->mipadjust = 1; // don't crash 672 else 673 out->mipadjust = 1 / floor( (len1+len2)/2 + 0.1 ); 674 #endif 675 676 miptex = LittleLong (in->miptex); 677 out->flags = LittleLong (in->flags); 678 679 if (!loadmodel->textures) 680 { 681 out->texture = r_notexture_mip; // checkerboard texture 682 out->flags = 0; 683 } 684 else 685 { 686 if (miptex >= loadmodel->numtextures) 687 Sys_Error ("miptex >= loadmodel->numtextures"); 688 out->texture = loadmodel->textures[miptex]; 689 if (!out->texture) 690 { 691 out->texture = r_notexture_mip; // texture not found 692 out->flags = 0; 693 } 694 } 695 } 696 } 697 698 /* 699 ================ 700 CalcSurfaceExtents 701 702 Fills in s->texturemins[] and s->extents[] 703 ================ 704 */ 705 void CalcSurfaceExtents (msurface_t *s) 706 { 707 float mins[2], maxs[2], val; 708 int i,j, e; 709 mvertex_t *v; 710 mtexinfo_t *tex; 711 int bmins[2], bmaxs[2]; 712 713 mins[0] = mins[1] = 999999; 714 maxs[0] = maxs[1] = -99999; 715 716 tex = s->texinfo; 717 718 for (i=0 ; i<s->numedges ; i++) 719 { 720 e = loadmodel->surfedges[s->firstedge+i]; 721 if (e >= 0) 722 v = &loadmodel->vertexes[loadmodel->edges[e].v[0]]; 723 else 724 v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]]; 725 726 for (j=0 ; j<2 ; j++) 727 { 728 val = v->position[0] * tex->vecs[j][0] + 729 v->position[1] * tex->vecs[j][1] + 730 v->position[2] * tex->vecs[j][2] + 731 tex->vecs[j][3]; 732 if (val < mins[j]) 733 mins[j] = val; 734 if (val > maxs[j]) 735 maxs[j] = val; 736 } 737 } 738 739 for (i=0 ; i<2 ; i++) 740 { 741 bmins[i] = (int) floorf(mins[i]/16); 742 bmaxs[i] = (int) ceilf(maxs[i]/16); 743 744 s->texturemins[i] = bmins[i] * 16; 745 s->extents[i] = (bmaxs[i] - bmins[i]) * 16; 746 if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ ) 747 Sys_Error ("Bad surface extents"); 748 } 749 } 750 751 752 /* 753 ================= 754 Mod_LoadFaces 755 ================= 756 */ 757 void Mod_LoadFaces (lump_t *l) 758 { 759 dface_t *in; 760 msurface_t *out; 761 int i, count, surfnum; 762 int planenum, side; 763 764 in = (dface_t *)(mod_base + l->fileofs); 765 if (l->filelen % sizeof(*in)) 766 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 767 count = l->filelen / sizeof(*in); 768 out = (msurface_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 769 770 loadmodel->surfaces = out; 771 loadmodel->numsurfaces = count; 772 773 for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++) 774 { 775 out->firstedge = LittleLong(in->firstedge); 776 out->numedges = LittleShort(in->numedges); 777 out->flags = 0; 778 779 planenum = LittleShort(in->planenum); 780 side = LittleShort(in->side); 781 if (side) 782 out->flags |= SURF_PLANEBACK; 783 784 out->plane = loadmodel->planes + planenum; 785 786 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo); 787 788 CalcSurfaceExtents (out); 789 790 // lighting info 791 792 for (i=0 ; i<MAXLIGHTMAPS ; i++) 793 out->styles[i] = in->styles[i]; 794 i = LittleLong(in->lightofs); 795 if (i == -1) 796 out->samples = NULL; 797 else 798 out->samples = loadmodel->lightdata + i; 799 800 // set the drawing flags flag 801 802 if (!Q_strncmp(out->texinfo->texture->name,"sky",3)) // sky 803 { 804 out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED); 805 #ifndef QUAKE2 806 GL_SubdivideSurface (out); // cut up polygon for warps 807 #endif 808 continue; 809 } 810 811 if (!Q_strncmp(out->texinfo->texture->name,"*",1)) // turbulent 812 { 813 out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED); 814 for (i=0 ; i<2 ; i++) 815 { 816 out->extents[i] = 16384; 817 out->texturemins[i] = -8192; 818 } 819 GL_SubdivideSurface (out); // cut up polygon for warps 820 continue; 821 } 822 823 } 824 } 825 826 827 /* 828 ================= 829 Mod_SetParent 830 ================= 831 */ 832 void Mod_SetParent (mnode_t *node, mnode_t *parent) 833 { 834 node->parent = parent; 835 if (node->contents < 0) 836 return; 837 Mod_SetParent (node->children[0], node); 838 Mod_SetParent (node->children[1], node); 839 } 840 841 /* 842 ================= 843 Mod_LoadNodes 844 ================= 845 */ 846 void Mod_LoadNodes (lump_t *l) 847 { 848 int i, j, count, p; 849 dnode_t *in; 850 mnode_t *out; 851 852 in = (dnode_t *)(mod_base + l->fileofs); 853 if (l->filelen % sizeof(*in)) 854 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 855 count = l->filelen / sizeof(*in); 856 out = (mnode_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 857 858 loadmodel->nodes = out; 859 loadmodel->numnodes = count; 860 861 for ( i=0 ; i<count ; i++, in++, out++) 862 { 863 for (j=0 ; j<3 ; j++) 864 { 865 out->minmaxs[j] = LittleShort (in->mins[j]); 866 out->minmaxs[3+j] = LittleShort (in->maxs[j]); 867 } 868 869 p = LittleLong(in->planenum); 870 out->plane = loadmodel->planes + p; 871 872 out->firstsurface = LittleShort (in->firstface); 873 out->numsurfaces = LittleShort (in->numfaces); 874 875 for (j=0 ; j<2 ; j++) 876 { 877 p = LittleShort (in->children[j]); 878 if (p >= 0) 879 out->children[j] = loadmodel->nodes + p; 880 else 881 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p)); 882 } 883 } 884 885 Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs 886 } 887 888 /* 889 ================= 890 Mod_LoadLeafs 891 ================= 892 */ 893 void Mod_LoadLeafs (lump_t *l) 894 { 895 dleaf_t *in; 896 mleaf_t *out; 897 int i, j, count, p; 898 899 in = (dleaf_t *)(mod_base + l->fileofs); 900 if (l->filelen % sizeof(*in)) 901 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 902 count = l->filelen / sizeof(*in); 903 out = (mleaf_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 904 905 loadmodel->leafs = out; 906 loadmodel->numleafs = count; 907 908 for ( i=0 ; i<count ; i++, in++, out++) 909 { 910 for (j=0 ; j<3 ; j++) 911 { 912 out->minmaxs[j] = LittleShort (in->mins[j]); 913 out->minmaxs[3+j] = LittleShort (in->maxs[j]); 914 } 915 916 p = LittleLong(in->contents); 917 out->contents = p; 918 919 out->firstmarksurface = loadmodel->marksurfaces + 920 LittleShort(in->firstmarksurface); 921 out->nummarksurfaces = LittleShort(in->nummarksurfaces); 922 923 p = LittleLong(in->visofs); 924 if (p == -1) 925 out->compressed_vis = NULL; 926 else 927 out->compressed_vis = loadmodel->visdata + p; 928 out->efrags = NULL; 929 930 for (j=0 ; j<4 ; j++) 931 out->ambient_sound_level[j] = in->ambient_level[j]; 932 933 // gl underwater warp 934 if (out->contents != CONTENTS_EMPTY) 935 { 936 for (j=0 ; j<out->nummarksurfaces ; j++) 937 out->firstmarksurface[j]->flags |= SURF_UNDERWATER; 938 } 939 } 940 } 941 942 /* 943 ================= 944 Mod_LoadClipnodes 945 ================= 946 */ 947 void Mod_LoadClipnodes (lump_t *l) 948 { 949 dclipnode_t *in, *out; 950 int i, count; 951 hull_t *hull; 952 953 in = (dclipnode_t *)(mod_base + l->fileofs); 954 if (l->filelen % sizeof(*in)) 955 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 956 count = l->filelen / sizeof(*in); 957 out = (dclipnode_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 958 959 loadmodel->clipnodes = out; 960 loadmodel->numclipnodes = count; 961 962 hull = &loadmodel->hulls[1]; 963 hull->clipnodes = out; 964 hull->firstclipnode = 0; 965 hull->lastclipnode = count-1; 966 hull->planes = loadmodel->planes; 967 hull->clip_mins[0] = -16; 968 hull->clip_mins[1] = -16; 969 hull->clip_mins[2] = -24; 970 hull->clip_maxs[0] = 16; 971 hull->clip_maxs[1] = 16; 972 hull->clip_maxs[2] = 32; 973 974 hull = &loadmodel->hulls[2]; 975 hull->clipnodes = out; 976 hull->firstclipnode = 0; 977 hull->lastclipnode = count-1; 978 hull->planes = loadmodel->planes; 979 hull->clip_mins[0] = -32; 980 hull->clip_mins[1] = -32; 981 hull->clip_mins[2] = -24; 982 hull->clip_maxs[0] = 32; 983 hull->clip_maxs[1] = 32; 984 hull->clip_maxs[2] = 64; 985 986 for (i=0 ; i<count ; i++, out++, in++) 987 { 988 out->planenum = LittleLong(in->planenum); 989 out->children[0] = LittleShort(in->children[0]); 990 out->children[1] = LittleShort(in->children[1]); 991 } 992 } 993 994 /* 995 ================= 996 Mod_MakeHull0 997 998 Deplicate the drawing hull structure as a clipping hull 999 ================= 1000 */ 1001 void Mod_MakeHull0 (void) 1002 { 1003 mnode_t *in, *child; 1004 dclipnode_t *out; 1005 int i, j, count; 1006 hull_t *hull; 1007 1008 hull = &loadmodel->hulls[0]; 1009 1010 in = loadmodel->nodes; 1011 count = loadmodel->numnodes; 1012 out = (dclipnode_t*) Hunk_AllocName ( count*sizeof(*out), loadname); 1013 1014 hull->clipnodes = out; 1015 hull->firstclipnode = 0; 1016 hull->lastclipnode = count-1; 1017 hull->planes = loadmodel->planes; 1018 1019 for (i=0 ; i<count ; i++, out++, in++) 1020 { 1021 out->planenum = in->plane - loadmodel->planes; 1022 for (j=0 ; j<2 ; j++) 1023 { 1024 child = in->children[j]; 1025 if (child->contents < 0) 1026 out->children[j] = child->contents; 1027 else 1028 out->children[j] = child - loadmodel->nodes; 1029 } 1030 } 1031 } 1032 1033 /* 1034 ================= 1035 Mod_LoadMarksurfaces 1036 ================= 1037 */ 1038 void Mod_LoadMarksurfaces (lump_t *l) 1039 { 1040 int i, j, count; 1041 short *in; 1042 msurface_t **out; 1043 1044 in = (short *)(mod_base + l->fileofs); 1045 if (l->filelen % sizeof(*in)) 1046 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1047 count = l->filelen / sizeof(*in); 1048 out = (msurface_t **) Hunk_AllocName ( count*sizeof(*out), loadname); 1049 1050 loadmodel->marksurfaces = out; 1051 loadmodel->nummarksurfaces = count; 1052 1053 for ( i=0 ; i<count ; i++) 1054 { 1055 j = LittleShort(in[i]); 1056 if (j >= loadmodel->numsurfaces) 1057 Sys_Error ("Mod_ParseMarksurfaces: bad surface number"); 1058 out[i] = loadmodel->surfaces + j; 1059 } 1060 } 1061 1062 /* 1063 ================= 1064 Mod_LoadSurfedges 1065 ================= 1066 */ 1067 void Mod_LoadSurfedges (lump_t *l) 1068 { 1069 int i, count; 1070 int *in, *out; 1071 1072 in = (int *)(mod_base + l->fileofs); 1073 if (l->filelen % sizeof(*in)) 1074 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1075 count = l->filelen / sizeof(*in); 1076 out = (int*) Hunk_AllocName ( count*sizeof(*out), loadname); 1077 1078 loadmodel->surfedges = out; 1079 loadmodel->numsurfedges = count; 1080 1081 for ( i=0 ; i<count ; i++) 1082 out[i] = LittleLong (in[i]); 1083 } 1084 1085 1086 /* 1087 ================= 1088 Mod_LoadPlanes 1089 ================= 1090 */ 1091 void Mod_LoadPlanes (lump_t *l) 1092 { 1093 int i, j; 1094 mplane_t *out; 1095 dplane_t *in; 1096 int count; 1097 int bits; 1098 1099 in = (dplane_t *)(mod_base + l->fileofs); 1100 if (l->filelen % sizeof(*in)) 1101 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1102 count = l->filelen / sizeof(*in); 1103 out = (mplane_t*) Hunk_AllocName ( count*2*sizeof(*out), loadname); 1104 1105 loadmodel->planes = out; 1106 loadmodel->numplanes = count; 1107 1108 for ( i=0 ; i<count ; i++, in++, out++) 1109 { 1110 bits = 0; 1111 for (j=0 ; j<3 ; j++) 1112 { 1113 out->normal[j] = LittleFloat (in->normal[j]); 1114 if (out->normal[j] < 0) 1115 bits |= 1<<j; 1116 } 1117 1118 out->dist = LittleFloat (in->dist); 1119 out->type = LittleLong (in->type); 1120 out->signbits = bits; 1121 } 1122 } 1123 1124 /* 1125 ================= 1126 RadiusFromBounds 1127 ================= 1128 */ 1129 float RadiusFromBounds (vec3_t mins, vec3_t maxs) 1130 { 1131 int i; 1132 vec3_t corner; 1133 1134 for (i=0 ; i<3 ; i++) 1135 { 1136 corner[i] = fabs(mins[i]) > fabs(maxs[i]) ? fabs(mins[i]) : fabs(maxs[i]); 1137 } 1138 1139 return Length (corner); 1140 } 1141 1142 /* 1143 ================= 1144 Mod_LoadBrushModel 1145 ================= 1146 */ 1147 void Mod_LoadBrushModel (model_t *mod, void *buffer) 1148 { 1149 int i, j; 1150 dheader_t *header; 1151 dmodel_t *bm; 1152 1153 loadmodel->type = mod_brush; 1154 1155 header = (dheader_t *)buffer; 1156 1157 i = LittleLong (header->version); 1158 if (i != BSPVERSION) 1159 Sys_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i)", mod->name, i, BSPVERSION); 1160 1161 // swap all the lumps 1162 mod_base = (byte *)header; 1163 1164 for (i=0 ; i< (int) (sizeof(dheader_t)/4) ; i++) 1165 ((int *)header)[i] = LittleLong ( ((int *)header)[i]); 1166 1167 // load into heap 1168 1169 Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]); 1170 Mod_LoadEdges (&header->lumps[LUMP_EDGES]); 1171 Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]); 1172 Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]); 1173 Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]); 1174 Mod_LoadPlanes (&header->lumps[LUMP_PLANES]); 1175 Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]); 1176 Mod_LoadFaces (&header->lumps[LUMP_FACES]); 1177 Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]); 1178 Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]); 1179 Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]); 1180 Mod_LoadNodes (&header->lumps[LUMP_NODES]); 1181 Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]); 1182 Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]); 1183 Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]); 1184 1185 Mod_MakeHull0 (); 1186 1187 mod->numframes = 2; // regular and alternate animation 1188 1189 // 1190 // set up the submodels (FIXME: this is confusing) 1191 // 1192 for (i=0 ; i<mod->numsubmodels ; i++) 1193 { 1194 bm = &mod->submodels[i]; 1195 1196 mod->hulls[0].firstclipnode = bm->headnode[0]; 1197 for (j=1 ; j<MAX_MAP_HULLS ; j++) 1198 { 1199 mod->hulls[j].firstclipnode = bm->headnode[j]; 1200 mod->hulls[j].lastclipnode = mod->numclipnodes-1; 1201 } 1202 1203 mod->firstmodelsurface = bm->firstface; 1204 mod->nummodelsurfaces = bm->numfaces; 1205 1206 VectorCopy (bm->maxs, mod->maxs); 1207 VectorCopy (bm->mins, mod->mins); 1208 1209 mod->radius = RadiusFromBounds (mod->mins, mod->maxs); 1210 1211 mod->numleafs = bm->visleafs; 1212 1213 if (i < mod->numsubmodels-1) 1214 { // duplicate the basic information 1215 char name[10]; 1216 1217 sprintf (name, "*%i", i+1); 1218 loadmodel = Mod_FindName (name); 1219 *loadmodel = *mod; 1220 strcpy (loadmodel->name, name); 1221 mod = loadmodel; 1222 } 1223 } 1224 } 1225 1226 /* 1227 ============================================================================== 1228 1229 ALIAS MODELS 1230 1231 ============================================================================== 1232 */ 1233 1234 aliashdr_t *pheader; 1235 1236 stvert_t stverts[MAXALIASVERTS]; 1237 mtriangle_t triangles[MAXALIASTRIS]; 1238 1239 // a pose is a single set of vertexes. a frame may be 1240 // an animating sequence of poses 1241 trivertx_t *poseverts[MAXALIASFRAMES]; 1242 int posenum; 1243 1244 byte **player_8bit_texels_tbl; 1245 byte *player_8bit_texels; 1246 1247 /* 1248 ================= 1249 Mod_LoadAliasFrame 1250 ================= 1251 */ 1252 void * Mod_LoadAliasFrame (void * pin, maliasframedesc_t *frame) 1253 { 1254 trivertx_t *pframe, *pinframe; 1255 int i, j; 1256 daliasframe_t *pdaliasframe; 1257 1258 pdaliasframe = (daliasframe_t *)pin; 1259 1260 strcpy (frame->name, pdaliasframe->name); 1261 frame->firstpose = posenum; 1262 frame->numposes = 1; 1263 1264 for (i=0 ; i<3 ; i++) 1265 { 1266 // these are byte values, so we don't have to worry about 1267 // endianness 1268 frame->bboxmin.v[i] = pdaliasframe->bboxmin.v[i]; 1269 frame->bboxmin.v[i] = pdaliasframe->bboxmax.v[i]; 1270 } 1271 1272 pinframe = (trivertx_t *)(pdaliasframe + 1); 1273 1274 poseverts[posenum] = pinframe; 1275 posenum++; 1276 1277 pinframe += pheader->numverts; 1278 1279 return (void *)pinframe; 1280 } 1281 1282 1283 /* 1284 ================= 1285 Mod_LoadAliasGroup 1286 ================= 1287 */ 1288 void *Mod_LoadAliasGroup (void * pin, maliasframedesc_t *frame) 1289 { 1290 daliasgroup_t *pingroup; 1291 int i, numframes; 1292 daliasinterval_t *pin_intervals; 1293 void *ptemp; 1294 1295 pingroup = (daliasgroup_t *)pin; 1296 1297 numframes = LittleLong (pingroup->numframes); 1298 1299 frame->firstpose = posenum; 1300 frame->numposes = numframes; 1301 1302 for (i=0 ; i<3 ; i++) 1303 { 1304 // these are byte values, so we don't have to worry about endianness 1305 frame->bboxmin.v[i] = pingroup->bboxmin.v[i]; 1306 frame->bboxmin.v[i] = pingroup->bboxmax.v[i]; 1307 } 1308 1309 pin_intervals = (daliasinterval_t *)(pingroup + 1); 1310 1311 frame->interval = LittleFloat (pin_intervals->interval); 1312 1313 pin_intervals += numframes; 1314 1315 ptemp = (void *)pin_intervals; 1316 1317 for (i=0 ; i<numframes ; i++) 1318 { 1319 poseverts[posenum] = (trivertx_t *)((daliasframe_t *)ptemp + 1); 1320 posenum++; 1321 1322 ptemp = (trivertx_t *)((daliasframe_t *)ptemp + 1) + pheader->numverts; 1323 } 1324 1325 return ptemp; 1326 } 1327 1328 //========================================================= 1329 1330 /* 1331 ================= 1332 Mod_FloodFillSkin 1333 1334 Fill background pixels so mipmapping doesn't have haloes - Ed 1335 ================= 1336 */ 1337 1338 typedef struct 1339 { 1340 short x, y; 1341 } floodfill_t; 1342 1343 extern unsigned d_8to24table[]; 1344 1345 // must be a power of 2 1346 #define FLOODFILL_FIFO_SIZE 0x1000 1347 #define FLOODFILL_FIFO_MASK (FLOODFILL_FIFO_SIZE - 1) 1348 1349 #define FLOODFILL_STEP( off, dx, dy ) \ 1350 { \ 1351 if (pos[off] == fillcolor) \ 1352 { \ 1353 pos[off] = 255; \ 1354 fifo[inpt].x = x + (dx), fifo[inpt].y = y + (dy); \ 1355 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; \ 1356 } \ 1357 else if (pos[off] != 255) fdc = pos[off]; \ 1358 } 1359 1360 void Mod_FloodFillSkin( byte *skin, int skinwidth, int skinheight ) 1361 { 1362 byte fillcolor = *skin; // assume this is the pixel to fill 1363 floodfill_t fifo[FLOODFILL_FIFO_SIZE]; 1364 int inpt = 0, outpt = 0; 1365 int filledcolor = -1; 1366 int i; 1367 1368 if (filledcolor == -1) 1369 { 1370 filledcolor = 0; 1371 // attempt to find opaque black 1372 for (i = 0; i < 256; ++i) 1373 if (d_8to24table[i] == (255 << 0)) // alpha 1.0 1374 { 1375 filledcolor = i; 1376 break; 1377 } 1378 } 1379 1380 // can't fill to filled color or to transparent color (used as visited marker) 1381 if ((fillcolor == filledcolor) || (fillcolor == 255)) 1382 { 1383 //printf( "not filling skin from %d to %d\n", fillcolor, filledcolor ); 1384 return; 1385 } 1386 1387 fifo[inpt].x = 0, fifo[inpt].y = 0; 1388 inpt = (inpt + 1) & FLOODFILL_FIFO_MASK; 1389 1390 while (outpt != inpt) 1391 { 1392 int x = fifo[outpt].x, y = fifo[outpt].y; 1393 int fdc = filledcolor; 1394 byte *pos = &skin[x + skinwidth * y]; 1395 1396 outpt = (outpt + 1) & FLOODFILL_FIFO_MASK; 1397 1398 if (x > 0) FLOODFILL_STEP( -1, -1, 0 ); 1399 if (x < skinwidth - 1) FLOODFILL_STEP( 1, 1, 0 ); 1400 if (y > 0) FLOODFILL_STEP( -skinwidth, 0, -1 ); 1401 if (y < skinheight - 1) FLOODFILL_STEP( skinwidth, 0, 1 ); 1402 skin[x + skinwidth * y] = fdc; 1403 } 1404 } 1405 1406 /* 1407 =============== 1408 Mod_LoadAllSkins 1409 =============== 1410 */ 1411 void *Mod_LoadAllSkins (int numskins, daliasskintype_t *pskintype) 1412 { 1413 int i, j, k; 1414 char name[32]; 1415 int s; 1416 byte *copy; 1417 byte *skin; 1418 byte *texels; 1419 daliasskingroup_t *pinskingroup; 1420 int groupskins; 1421 daliasskininterval_t *pinskinintervals; 1422 1423 skin = (byte *)(pskintype + 1); 1424 1425 if (numskins < 1 || numskins > MAX_SKINS) 1426 Sys_Error ("Mod_LoadAliasModel: Invalid # of skins: %d\n", numskins); 1427 1428 s = pheader->skinwidth * pheader->skinheight; 1429 1430 for (i=0 ; i<numskins ; i++) 1431 { 1432 if (pskintype->type == ALIAS_SKIN_SINGLE) { 1433 Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight ); 1434 1435 // save 8 bit texels for the player model to remap 1436 // if (!strcmp(loadmodel->name,"progs/player.mdl")) { 1437 texels = (byte*) Hunk_AllocName(s, loadname); 1438 pheader->texels[i] = texels - (byte *)pheader; 1439 memcpy (texels, (byte *)(pskintype + 1), s); 1440 // } 1441 sprintf (name, "%s_%i", loadmodel->name, i); 1442 pheader->gl_texturenum[i][0] = 1443 pheader->gl_texturenum[i][1] = 1444 pheader->gl_texturenum[i][2] = 1445 pheader->gl_texturenum[i][3] = 1446 GL_LoadTexture (name, pheader->skinwidth, 1447 pheader->skinheight, (byte *)(pskintype + 1), true, false); 1448 pskintype = (daliasskintype_t *)((byte *)(pskintype+1) + s); 1449 } else { 1450 // animating skin group. yuck. 1451 pskintype++; 1452 pinskingroup = (daliasskingroup_t *)pskintype; 1453 groupskins = LittleLong (pinskingroup->numskins); 1454 pinskinintervals = (daliasskininterval_t *)(pinskingroup + 1); 1455 1456 pskintype = (daliasskintype_t *)(pinskinintervals + groupskins); 1457 1458 for (j=0 ; j<groupskins ; j++) 1459 { 1460 Mod_FloodFillSkin( skin, pheader->skinwidth, pheader->skinheight ); 1461 if (j == 0) { 1462 texels = (byte*) Hunk_AllocName(s, loadname); 1463 pheader->texels[i] = texels - (byte *)pheader; 1464 memcpy (texels, (byte *)(pskintype), s); 1465 } 1466 sprintf (name, "%s_%i_%i", loadmodel->name, i,j); 1467 pheader->gl_texturenum[i][j&3] = 1468 GL_LoadTexture (name, pheader->skinwidth, 1469 pheader->skinheight, (byte *)(pskintype), true, false); 1470 pskintype = (daliasskintype_t *)((byte *)(pskintype) + s); 1471 } 1472 k = j; 1473 for (/* */; j < 4; j++) 1474 pheader->gl_texturenum[i][j&3] = 1475 pheader->gl_texturenum[i][j - k]; 1476 } 1477 } 1478 1479 return (void *)pskintype; 1480 } 1481 1482 //========================================================================= 1483 1484 /* 1485 ================= 1486 Mod_LoadAliasModel 1487 ================= 1488 */ 1489 void Mod_LoadAliasModel (model_t *mod, void *buffer) 1490 { 1491 int i, j; 1492 mdl_t *pinmodel; 1493 stvert_t *pinstverts; 1494 dtriangle_t *pintriangles; 1495 int version, numframes, numskins; 1496 int size; 1497 daliasframetype_t *pframetype; 1498 daliasskintype_t *pskintype; 1499 int start, end, total; 1500 1501 start = Hunk_LowMark (); 1502 1503 pinmodel = (mdl_t *)buffer; 1504 1505 version = LittleLong (pinmodel->version); 1506 if (version != ALIAS_VERSION) 1507 Sys_Error ("%s has wrong version number (%i should be %i)", 1508 mod->name, version, ALIAS_VERSION); 1509 1510 // 1511 // allocate space for a working header, plus all the data except the frames, 1512 // skin and group info 1513 // 1514 size = sizeof (aliashdr_t) 1515 + (LittleLong (pinmodel->numframes) - 1) * 1516 sizeof (pheader->frames[0]); 1517 pheader = (aliashdr_t*) Hunk_AllocName (size, loadname); 1518 1519 mod->flags = LittleLong (pinmodel->flags); 1520 1521 // 1522 // endian-adjust and copy the data, starting with the alias model header 1523 // 1524 pheader->boundingradius = LittleFloat (pinmodel->boundingradius); 1525 pheader->numskins = LittleLong (pinmodel->numskins); 1526 pheader->skinwidth = LittleLong (pinmodel->skinwidth); 1527 pheader->skinheight = LittleLong (pinmodel->skinheight); 1528 1529 if (pheader->skinheight > MAX_LBM_HEIGHT) 1530 Sys_Error ("model %s has a skin taller than %d", mod->name, 1531 MAX_LBM_HEIGHT); 1532 1533 pheader->numverts = LittleLong (pinmodel->numverts); 1534 1535 if (pheader->numverts <= 0) 1536 Sys_Error ("model %s has no vertices", mod->name); 1537 1538 if (pheader->numverts > MAXALIASVERTS) 1539 Sys_Error ("model %s has too many vertices", mod->name); 1540 1541 pheader->numtris = LittleLong (pinmodel->numtris); 1542 1543 if (pheader->numtris <= 0) 1544 Sys_Error ("model %s has no triangles", mod->name); 1545 1546 pheader->numframes = LittleLong (pinmodel->numframes); 1547 numframes = pheader->numframes; 1548 if (numframes < 1) 1549 Sys_Error ("Mod_LoadAliasModel: Invalid # of frames: %d\n", numframes); 1550 1551 pheader->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO; 1552 mod->synctype = (synctype_t) LittleLong (pinmodel->synctype); 1553 mod->numframes = pheader->numframes; 1554 1555 for (i=0 ; i<3 ; i++) 1556 { 1557 pheader->scale[i] = LittleFloat (pinmodel->scale[i]); 1558 pheader->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]); 1559 pheader->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]); 1560 } 1561 1562 1563 // 1564 // load the skins 1565 // 1566 pskintype = (daliasskintype_t *)&pinmodel[1]; 1567 pskintype = (daliasskintype_t*) Mod_LoadAllSkins (pheader->numskins, pskintype); 1568 1569 // 1570 // load base s and t vertices 1571 // 1572 pinstverts = (stvert_t *)pskintype; 1573 1574 for (i=0 ; i<pheader->numverts ; i++) 1575 { 1576 stverts[i].onseam = LittleLong (pinstverts[i].onseam); 1577 stverts[i].s = LittleLong (pinstverts[i].s); 1578 stverts[i].t = LittleLong (pinstverts[i].t); 1579 } 1580 1581 // 1582 // load triangle lists 1583 // 1584 pintriangles = (dtriangle_t *)&pinstverts[pheader->numverts]; 1585 1586 for (i=0 ; i<pheader->numtris ; i++) 1587 { 1588 triangles[i].facesfront = LittleLong (pintriangles[i].facesfront); 1589 1590 for (j=0 ; j<3 ; j++) 1591 { 1592 triangles[i].vertindex[j] = 1593 LittleLong (pintriangles[i].vertindex[j]); 1594 } 1595 } 1596 1597 // 1598 // load the frames 1599 // 1600 posenum = 0; 1601 pframetype = (daliasframetype_t *)&pintriangles[pheader->numtris]; 1602 1603 for (i=0 ; i<numframes ; i++) 1604 { 1605 aliasframetype_t frametype; 1606 1607 frametype = (aliasframetype_t) LittleLong (pframetype->type); 1608 1609 if (frametype == ALIAS_SINGLE) 1610 { 1611 pframetype = (daliasframetype_t *) 1612 Mod_LoadAliasFrame (pframetype + 1, &pheader->frames[i]); 1613 } 1614 else 1615 { 1616 pframetype = (daliasframetype_t *) 1617 Mod_LoadAliasGroup (pframetype + 1, &pheader->frames[i]); 1618 } 1619 } 1620 1621 pheader->numposes = posenum; 1622 1623 mod->type = mod_alias; 1624 1625 // FIXME: do this right 1626 mod->mins[0] = mod->mins[1] = mod->mins[2] = -16; 1627 mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16; 1628 1629 // 1630 // build the draw lists 1631 // 1632 GL_MakeAliasModelDisplayLists (mod, pheader); 1633 1634 // 1635 // move the complete, relocatable alias model to the cache 1636 // 1637 end = Hunk_LowMark (); 1638 total = end - start; 1639 1640 Cache_Alloc (&mod->cache, total, loadname); 1641 if (!mod->cache.data) 1642 return; 1643 memcpy (mod->cache.data, pheader, total); 1644 1645 Hunk_FreeToLowMark (start); 1646 } 1647 1648 //============================================================================= 1649 1650 /* 1651 ================= 1652 Mod_LoadSpriteFrame 1653 ================= 1654 */ 1655 void * Mod_LoadSpriteFrame (void * pin, mspriteframe_t **ppframe, int framenum) 1656 { 1657 dspriteframe_t *pinframe; 1658 mspriteframe_t *pspriteframe; 1659 int i, width, height, size, origin[2]; 1660 unsigned short *ppixout; 1661 byte *ppixin; 1662 char name[64]; 1663 1664 pinframe = (dspriteframe_t *)pin; 1665 1666 width = LittleLong (pinframe->width); 1667 height = LittleLong (pinframe->height); 1668 size = width * height; 1669 1670 pspriteframe = (mspriteframe_t*) Hunk_AllocName (sizeof (mspriteframe_t),loadname); 1671 1672 Q_memset (pspriteframe, 0, sizeof (mspriteframe_t)); 1673 1674 *ppframe = pspriteframe; 1675 1676 pspriteframe->width = width; 1677 pspriteframe->height = height; 1678 origin[0] = LittleLong (pinframe->origin[0]); 1679 origin[1] = LittleLong (pinframe->origin[1]); 1680 1681 pspriteframe->up = origin[1]; 1682 pspriteframe->down = origin[1] - height; 1683 pspriteframe->left = origin[0]; 1684 pspriteframe->right = width + origin[0]; 1685 1686 sprintf (name, "%s_%i", loadmodel->name, framenum); 1687 pspriteframe->gl_texturenum = GL_LoadTexture (name, width, height, (byte *)(pinframe + 1), true, true); 1688 1689 return (void *)((byte *)pinframe + sizeof (dspriteframe_t) + size); 1690 } 1691 1692 1693 /* 1694 ================= 1695 Mod_LoadSpriteGroup 1696 ================= 1697 */ 1698 void * Mod_LoadSpriteGroup (void * pin, mspriteframe_t **ppframe, int framenum) 1699 { 1700 dspritegroup_t *pingroup; 1701 mspritegroup_t *pspritegroup; 1702 int i, numframes; 1703 dspriteinterval_t *pin_intervals; 1704 float *poutintervals; 1705 void *ptemp; 1706 1707 pingroup = (dspritegroup_t *)pin; 1708 1709 numframes = LittleLong (pingroup->numframes); 1710 1711 pspritegroup = (mspritegroup_t*) Hunk_AllocName (sizeof (mspritegroup_t) + 1712 (numframes - 1) * sizeof (pspritegroup->frames[0]), loadname); 1713 1714 pspritegroup->numframes = numframes; 1715 1716 *ppframe = (mspriteframe_t *)pspritegroup; 1717 1718 pin_intervals = (dspriteinterval_t *)(pingroup + 1); 1719 1720 poutintervals = (float*) Hunk_AllocName (numframes * sizeof (float), loadname); 1721 1722 pspritegroup->intervals = poutintervals; 1723 1724 for (i=0 ; i<numframes ; i++) 1725 { 1726 *poutintervals = LittleFloat (pin_intervals->interval); 1727 if (*poutintervals <= 0.0) 1728 Sys_Error ("Mod_LoadSpriteGroup: interval<=0"); 1729 1730 poutintervals++; 1731 pin_intervals++; 1732 } 1733 1734 ptemp = (void *)pin_intervals; 1735 1736 for (i=0 ; i<numframes ; i++) 1737 { 1738 ptemp = Mod_LoadSpriteFrame (ptemp, &pspritegroup->frames[i], framenum * 100 + i); 1739 } 1740 1741 return ptemp; 1742 } 1743 1744 1745 /* 1746 ================= 1747 Mod_LoadSpriteModel 1748 ================= 1749 */ 1750 void Mod_LoadSpriteModel (model_t *mod, void *buffer) 1751 { 1752 int i; 1753 int version; 1754 dsprite_t *pin; 1755 msprite_t *psprite; 1756 int numframes; 1757 int size; 1758 dspriteframetype_t *pframetype; 1759 1760 pin = (dsprite_t *)buffer; 1761 1762 version = LittleLong (pin->version); 1763 if (version != SPRITE_VERSION) 1764 Sys_Error ("%s has wrong version number " 1765 "(%i should be %i)", mod->name, version, SPRITE_VERSION); 1766 1767 numframes = LittleLong (pin->numframes); 1768 1769 size = sizeof (msprite_t) + (numframes - 1) * sizeof (psprite->frames); 1770 1771 psprite = (msprite_t*) Hunk_AllocName (size, loadname); 1772 1773 mod->cache.data = psprite; 1774 1775 psprite->type = LittleLong (pin->type); 1776 psprite->maxwidth = LittleLong (pin->width); 1777 psprite->maxheight = LittleLong (pin->height); 1778 psprite->beamlength = LittleFloat (pin->beamlength); 1779 mod->synctype = (synctype_t) LittleLong (pin->synctype); 1780 psprite->numframes = numframes; 1781 1782 mod->mins[0] = mod->mins[1] = -psprite->maxwidth/2; 1783 mod->maxs[0] = mod->maxs[1] = psprite->maxwidth/2; 1784 mod->mins[2] = -psprite->maxheight/2; 1785 mod->maxs[2] = psprite->maxheight/2; 1786 1787 // 1788 // load the frames 1789 // 1790 if (numframes < 1) 1791 Sys_Error ("Mod_LoadSpriteModel: Invalid # of frames: %d\n", numframes); 1792 1793 mod->numframes = numframes; 1794 1795 pframetype = (dspriteframetype_t *)(pin + 1); 1796 1797 for (i=0 ; i<numframes ; i++) 1798 { 1799 spriteframetype_t frametype; 1800 1801 frametype = (spriteframetype_t) LittleLong (pframetype->type); 1802 psprite->frames[i].type = frametype; 1803 1804 if (frametype == SPR_SINGLE) 1805 { 1806 pframetype = (dspriteframetype_t *) 1807 Mod_LoadSpriteFrame (pframetype + 1, 1808 &psprite->frames[i].frameptr, i); 1809 } 1810 else 1811 { 1812 pframetype = (dspriteframetype_t *) 1813 Mod_LoadSpriteGroup (pframetype + 1, 1814 &psprite->frames[i].frameptr, i); 1815 } 1816 } 1817 1818 mod->type = mod_sprite; 1819 } 1820 1821 //============================================================================= 1822 1823 /* 1824 ================ 1825 Mod_Print 1826 ================ 1827 */ 1828 void Mod_Print (void) 1829 { 1830 int i; 1831 model_t *mod; 1832 1833 Con_Printf ("Cached models:\n"); 1834 for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++) 1835 { 1836 Con_Printf ("%8p : %s\n",mod->cache.data, mod->name); 1837 } 1838 } 1839 1840 1841
