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 #include "r_local.h" 27 28 model_t *loadmodel; 29 char loadname[32]; // for hunk tags 30 31 void Mod_LoadSpriteModel (model_t *mod, void *buffer); 32 void Mod_LoadBrushModel (model_t *mod, void *buffer); 33 void Mod_LoadAliasModel (model_t *mod, void *buffer); 34 model_t *Mod_LoadModel (model_t *mod, qboolean crash); 35 36 byte mod_novis[MAX_MAP_LEAFS/8]; 37 38 #define MAX_MOD_KNOWN 256 39 model_t mod_known[MAX_MOD_KNOWN]; 40 int mod_numknown; 41 42 // values for model_t's needload 43 #define NL_PRESENT 0 44 #define NL_NEEDS_LOADED 1 45 #define NL_UNREFERENCED 2 46 47 /* 48 =============== 49 Mod_Init 50 =============== 51 */ 52 void Mod_Init (void) 53 { 54 memset (mod_novis, 0xff, sizeof(mod_novis)); 55 } 56 57 /* 58 =============== 59 Mod_Extradata 60 61 Caches the data if needed 62 =============== 63 */ 64 void *Mod_Extradata (model_t *mod) 65 { 66 void *r; 67 68 r = Cache_Check (&mod->cache); 69 if (r) 70 return r; 71 72 Mod_LoadModel (mod, true); 73 74 if (!mod->cache.data) 75 Sys_Error ("Mod_Extradata: caching failed"); 76 return mod->cache.data; 77 } 78 79 /* 80 =============== 81 Mod_PointInLeaf 82 =============== 83 */ 84 mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model) 85 { 86 mnode_t *node; 87 float d; 88 mplane_t *plane; 89 90 if (!model || !model->nodes) 91 Sys_Error ("Mod_PointInLeaf: bad model"); 92 93 node = model->nodes; 94 while (1) 95 { 96 if (node->contents < 0) 97 return (mleaf_t *)node; 98 plane = node->plane; 99 d = DotProduct (p,plane->normal) - plane->dist; 100 if (d > 0) 101 node = node->children[0]; 102 else 103 node = node->children[1]; 104 } 105 106 return NULL; // never reached 107 } 108 109 110 /* 111 =================== 112 Mod_DecompressVis 113 =================== 114 */ 115 byte *Mod_DecompressVis (byte *in, model_t *model) 116 { 117 static byte decompressed[MAX_MAP_LEAFS/8]; 118 int c; 119 byte *out; 120 int row; 121 122 row = (model->numleafs+7)>>3; 123 out = decompressed; 124 125 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); 151 152 return decompressed; 153 } 154 155 byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model) 156 { 157 if (leaf == model->leafs) 158 return mod_novis; 159 return Mod_DecompressVis (leaf->compressed_vis, model); 160 } 161 162 /* 163 =================== 164 Mod_ClearAll 165 =================== 166 */ 167 void Mod_ClearAll (void) 168 { 169 int i; 170 model_t *mod; 171 172 173 for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) { 174 mod->needload = NL_UNREFERENCED; 175 //FIX FOR CACHE_ALLOC ERRORS: 176 if (mod->type == mod_sprite) mod->cache.data = NULL; 177 } 178 } 179 180 /* 181 ================== 182 Mod_FindName 183 184 ================== 185 */ 186 model_t *Mod_FindName (char *name) 187 { 188 int i; 189 model_t *mod; 190 model_t *avail = NULL; 191 192 if (!name[0]) 193 Sys_Error ("Mod_ForName: NULL name"); 194 195 // 196 // search the currently loaded models 197 // 198 for (i=0 , mod=mod_known ; i<mod_numknown ; i++, mod++) 199 { 200 if (!strcmp (mod->name, name) ) 201 break; 202 if (mod->needload == NL_UNREFERENCED) 203 if (!avail || mod->type != mod_alias) 204 avail = mod; 205 } 206 207 if (i == mod_numknown) 208 { 209 if (mod_numknown == MAX_MOD_KNOWN) 210 { 211 if (avail) 212 { 213 mod = avail; 214 if (mod->type == mod_alias) 215 if (Cache_Check (&mod->cache)) 216 Cache_Free (&mod->cache); 217 } 218 else 219 Sys_Error ("mod_numknown == MAX_MOD_KNOWN"); 220 } 221 else 222 mod_numknown++; 223 strcpy (mod->name, name); 224 mod->needload = NL_NEEDS_LOADED; 225 } 226 227 return mod; 228 } 229 230 /* 231 ================== 232 Mod_TouchModel 233 234 ================== 235 */ 236 void Mod_TouchModel (char *name) 237 { 238 model_t *mod; 239 240 mod = Mod_FindName (name); 241 242 if (mod->needload == NL_PRESENT) 243 { 244 if (mod->type == mod_alias) 245 Cache_Check (&mod->cache); 246 } 247 } 248 249 /* 250 ================== 251 Mod_LoadModel 252 253 Loads a model into the cache 254 ================== 255 */ 256 model_t *Mod_LoadModel (model_t *mod, qboolean crash) 257 { 258 unsigned *buf; 259 byte stackbuf[1024]; // avoid dirtying the cache heap 260 261 if (mod->type == mod_alias) 262 { 263 if (Cache_Check (&mod->cache)) 264 { 265 mod->needload = NL_PRESENT; 266 return mod; 267 } 268 } 269 else 270 { 271 if (mod->needload == NL_PRESENT) 272 return mod; 273 } 274 275 // 276 // because the world is so huge, load it one piece at a time 277 // 278 279 // 280 // load the file 281 // 282 buf = (unsigned *)COM_LoadStackFile (mod->name, stackbuf, sizeof(stackbuf)); 283 if (!buf) 284 { 285 if (crash) 286 Sys_Error ("Mod_NumForName: %s not found", mod->name); 287 return NULL; 288 } 289 290 // 291 // allocate a new model 292 // 293 COM_FileBase (mod->name, loadname, sizeof(loadname)); 294 295 loadmodel = mod; 296 297 // 298 // fill it in 299 // 300 301 // call the apropriate loader 302 mod->needload = NL_PRESENT; 303 304 switch (LittleLong(*(unsigned *)buf)) 305 { 306 case IDPOLYHEADER: 307 Mod_LoadAliasModel (mod, buf); 308 break; 309 310 case IDSPRITEHEADER: 311 Mod_LoadSpriteModel (mod, buf); 312 break; 313 314 default: 315 Mod_LoadBrushModel (mod, buf); 316 break; 317 } 318 319 return mod; 320 } 321 322 /* 323 ================== 324 Mod_ForName 325 326 Loads in a model for the given name 327 ================== 328 */ 329 model_t *Mod_ForName (char *name, qboolean crash) 330 { 331 model_t *mod; 332 333 mod = Mod_FindName (name); 334 335 return Mod_LoadModel (mod, crash); 336 } 337 338 339 /* 340 =============================================================================== 341 342 BRUSHMODEL LOADING 343 344 =============================================================================== 345 */ 346 347 byte *mod_base; 348 349 350 /* 351 ================= 352 Mod_LoadTextures 353 ================= 354 */ 355 void Mod_LoadTextures (lump_t *l) 356 { 357 int i, j, pixels, num, max, altmax; 358 miptex_t *mt; 359 texture_t *tx, *tx2; 360 texture_t *anims[10]; 361 texture_t *altanims[10]; 362 dmiptexlump_t *m; 363 364 if (!l->filelen) 365 { 366 loadmodel->textures = NULL; 367 return; 368 } 369 m = (dmiptexlump_t *)(mod_base + l->fileofs); 370 371 m->nummiptex = LittleLong (m->nummiptex); 372 373 loadmodel->numtextures = m->nummiptex; 374 loadmodel->textures = Hunk_AllocName (m->nummiptex * sizeof(*loadmodel->textures) , loadname); 375 376 for (i=0 ; i<m->nummiptex ; i++) 377 { 378 m->dataofs[i] = LittleLong(m->dataofs[i]); 379 if (m->dataofs[i] == -1) 380 continue; 381 mt = (miptex_t *)((byte *)m + m->dataofs[i]); 382 mt->width = LittleLong (mt->width); 383 mt->height = LittleLong (mt->height); 384 for (j=0 ; j<MIPLEVELS ; j++) 385 mt->offsets[j] = LittleLong (mt->offsets[j]); 386 387 if ( (mt->width & 15) || (mt->height & 15) ) 388 Sys_Error ("Texture %s is not 16 aligned", mt->name); 389 pixels = mt->width*mt->height/64*85; 390 tx = Hunk_AllocName (sizeof(texture_t) +pixels, loadname ); 391 loadmodel->textures[i] = tx; 392 393 memcpy (tx->name, mt->name, sizeof(tx->name)); 394 tx->width = mt->width; 395 tx->height = mt->height; 396 for (j=0 ; j<MIPLEVELS ; j++) 397 tx->offsets[j] = mt->offsets[j] + sizeof(texture_t) - sizeof(miptex_t); 398 // the pixels immediately follow the structures 399 memcpy ( tx+1, mt+1, pixels); 400 401 if (!Q_strncmp(mt->name,"sky",3)) 402 R_InitSky (tx); 403 } 404 405 // 406 // sequence the animations 407 // 408 for (i=0 ; i<m->nummiptex ; i++) 409 { 410 tx = loadmodel->textures[i]; 411 if (!tx || tx->name[0] != '+') 412 continue; 413 if (tx->anim_next) 414 continue; // allready sequenced 415 416 // find the number of frames in the animation 417 memset (anims, 0, sizeof(anims)); 418 memset (altanims, 0, sizeof(altanims)); 419 420 max = tx->name[1]; 421 altmax = 0; 422 if (max >= 'a' && max <= 'z') 423 max -= 'a' - 'A'; 424 if (max >= '0' && max <= '9') 425 { 426 max -= '0'; 427 altmax = 0; 428 anims[max] = tx; 429 max++; 430 } 431 else if (max >= 'A' && max <= 'J') 432 { 433 altmax = max - 'A'; 434 max = 0; 435 altanims[altmax] = tx; 436 altmax++; 437 } 438 else 439 Sys_Error ("Bad animating texture %s", tx->name); 440 441 for (j=i+1 ; j<m->nummiptex ; j++) 442 { 443 tx2 = loadmodel->textures[j]; 444 if (!tx2 || tx2->name[0] != '+') 445 continue; 446 if (strcmp (tx2->name+2, tx->name+2)) 447 continue; 448 449 num = tx2->name[1]; 450 if (num >= 'a' && num <= 'z') 451 num -= 'a' - 'A'; 452 if (num >= '0' && num <= '9') 453 { 454 num -= '0'; 455 anims[num] = tx2; 456 if (num+1 > max) 457 max = num + 1; 458 } 459 else if (num >= 'A' && num <= 'J') 460 { 461 num = num - 'A'; 462 altanims[num] = tx2; 463 if (num+1 > altmax) 464 altmax = num+1; 465 } 466 else 467 Sys_Error ("Bad animating texture %s", tx->name); 468 } 469 470 #define ANIM_CYCLE 2 471 // link them all together 472 for (j=0 ; j<max ; j++) 473 { 474 tx2 = anims[j]; 475 if (!tx2) 476 Sys_Error ("Missing frame %i of %s",j, tx->name); 477 tx2->anim_total = max * ANIM_CYCLE; 478 tx2->anim_min = j * ANIM_CYCLE; 479 tx2->anim_max = (j+1) * ANIM_CYCLE; 480 tx2->anim_next = anims[ (j+1)%max ]; 481 if (altmax) 482 tx2->alternate_anims = altanims[0]; 483 } 484 for (j=0 ; j<altmax ; j++) 485 { 486 tx2 = altanims[j]; 487 if (!tx2) 488 Sys_Error ("Missing frame %i of %s",j, tx->name); 489 tx2->anim_total = altmax * ANIM_CYCLE; 490 tx2->anim_min = j * ANIM_CYCLE; 491 tx2->anim_max = (j+1) * ANIM_CYCLE; 492 tx2->anim_next = altanims[ (j+1)%altmax ]; 493 if (max) 494 tx2->alternate_anims = anims[0]; 495 } 496 } 497 } 498 499 /* 500 ================= 501 Mod_LoadLighting 502 ================= 503 */ 504 void Mod_LoadLighting (lump_t *l) 505 { 506 if (!l->filelen) 507 { 508 loadmodel->lightdata = NULL; 509 return; 510 } 511 loadmodel->lightdata = Hunk_AllocName ( l->filelen, loadname); 512 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen); 513 } 514 515 516 /* 517 ================= 518 Mod_LoadVisibility 519 ================= 520 */ 521 void Mod_LoadVisibility (lump_t *l) 522 { 523 if (!l->filelen) 524 { 525 loadmodel->visdata = NULL; 526 return; 527 } 528 loadmodel->visdata = Hunk_AllocName ( l->filelen, loadname); 529 memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen); 530 } 531 532 533 /* 534 ================= 535 Mod_LoadEntities 536 ================= 537 */ 538 void Mod_LoadEntities (lump_t *l) 539 { 540 if (!l->filelen) 541 { 542 loadmodel->entities = NULL; 543 return; 544 } 545 loadmodel->entities = Hunk_AllocName ( l->filelen, loadname); 546 memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen); 547 } 548 549 550 /* 551 ================= 552 Mod_LoadVertexes 553 ================= 554 */ 555 void Mod_LoadVertexes (lump_t *l) 556 { 557 dvertex_t *in; 558 mvertex_t *out; 559 int i, count; 560 561 in = (void *)(mod_base + l->fileofs); 562 if (l->filelen % sizeof(*in)) 563 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 564 count = l->filelen / sizeof(*in); 565 out = Hunk_AllocName ( count*sizeof(*out), loadname); 566 567 loadmodel->vertexes = out; 568 loadmodel->numvertexes = count; 569 570 for ( i=0 ; i<count ; i++, in++, out++) 571 { 572 out->position[0] = LittleFloat (in->point[0]); 573 out->position[1] = LittleFloat (in->point[1]); 574 out->position[2] = LittleFloat (in->point[2]); 575 } 576 } 577 578 /* 579 ================= 580 Mod_LoadSubmodels 581 ================= 582 */ 583 void Mod_LoadSubmodels (lump_t *l) 584 { 585 dmodel_t *in; 586 dmodel_t *out; 587 int i, j, count; 588 589 in = (void *)(mod_base + l->fileofs); 590 if (l->filelen % sizeof(*in)) 591 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 592 count = l->filelen / sizeof(*in); 593 out = Hunk_AllocName ( count*sizeof(*out), loadname); 594 595 loadmodel->submodels = out; 596 loadmodel->numsubmodels = count; 597 598 for ( i=0 ; i<count ; i++, in++, out++) 599 { 600 for (j=0 ; j<3 ; j++) 601 { // spread the mins / maxs by a pixel 602 out->mins[j] = LittleFloat (in->mins[j]) - 1; 603 out->maxs[j] = LittleFloat (in->maxs[j]) + 1; 604 out->origin[j] = LittleFloat (in->origin[j]); 605 } 606 for (j=0 ; j<MAX_MAP_HULLS ; j++) 607 out->headnode[j] = LittleLong (in->headnode[j]); 608 out->visleafs = LittleLong (in->visleafs); 609 out->firstface = LittleLong (in->firstface); 610 out->numfaces = LittleLong (in->numfaces); 611 } 612 } 613 614 /* 615 ================= 616 Mod_LoadEdges 617 ================= 618 */ 619 void Mod_LoadEdges (lump_t *l) 620 { 621 dedge_t *in; 622 medge_t *out; 623 int i, count; 624 625 in = (void *)(mod_base + l->fileofs); 626 if (l->filelen % sizeof(*in)) 627 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 628 count = l->filelen / sizeof(*in); 629 out = Hunk_AllocName ( (count + 1) * sizeof(*out), loadname); 630 631 loadmodel->edges = out; 632 loadmodel->numedges = count; 633 634 for ( i=0 ; i<count ; i++, in++, out++) 635 { 636 out->v[0] = (unsigned short)LittleShort(in->v[0]); 637 out->v[1] = (unsigned short)LittleShort(in->v[1]); 638 } 639 } 640 641 /* 642 ================= 643 Mod_LoadTexinfo 644 ================= 645 */ 646 void Mod_LoadTexinfo (lump_t *l) 647 { 648 texinfo_t *in; 649 mtexinfo_t *out; 650 int i, j, count; 651 int miptex; 652 float len1, len2; 653 654 in = (void *)(mod_base + l->fileofs); 655 if (l->filelen % sizeof(*in)) 656 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 657 count = l->filelen / sizeof(*in); 658 out = Hunk_AllocName ( count*sizeof(*out), loadname); 659 660 loadmodel->texinfo = out; 661 loadmodel->numtexinfo = count; 662 663 for ( i=0 ; i<count ; i++, in++, out++) 664 { 665 for (j=0 ; j<8 ; j++) 666 out->vecs[0][j] = LittleFloat (in->vecs[0][j]); 667 len1 = Length (out->vecs[0]); 668 len2 = Length (out->vecs[1]); 669 len1 = (len1 + len2)/2; 670 if (len1 < 0.32) 671 out->mipadjust = 4; 672 else if (len1 < 0.49) 673 out->mipadjust = 3; 674 else if (len1 < 0.99) 675 out->mipadjust = 2; 676 else 677 out->mipadjust = 1; 678 #if 0 679 if (len1 + len2 < 0.001) 680 out->mipadjust = 1; // don't crash 681 else 682 out->mipadjust = 1 / floor( (len1+len2)/2 + 0.1 ); 683 #endif 684 685 miptex = LittleLong (in->miptex); 686 out->flags = LittleLong (in->flags); 687 688 if (!loadmodel->textures) 689 { 690 out->texture = r_notexture_mip; // checkerboard texture 691 out->flags = 0; 692 } 693 else 694 { 695 if (miptex >= loadmodel->numtextures) 696 Sys_Error ("miptex >= loadmodel->numtextures"); 697 out->texture = loadmodel->textures[miptex]; 698 if (!out->texture) 699 { 700 out->texture = r_notexture_mip; // texture not found 701 out->flags = 0; 702 } 703 } 704 } 705 } 706 707 /* 708 ================ 709 CalcSurfaceExtents 710 711 Fills in s->texturemins[] and s->extents[] 712 ================ 713 */ 714 void CalcSurfaceExtents (msurface_t *s) 715 { 716 float mins[2], maxs[2], val; 717 int i,j, e; 718 mvertex_t *v; 719 mtexinfo_t *tex; 720 int bmins[2], bmaxs[2]; 721 722 mins[0] = mins[1] = 999999; 723 maxs[0] = maxs[1] = -99999; 724 725 tex = s->texinfo; 726 727 for (i=0 ; i<s->numedges ; i++) 728 { 729 e = loadmodel->surfedges[s->firstedge+i]; 730 if (e >= 0) 731 v = &loadmodel->vertexes[loadmodel->edges[e].v[0]]; 732 else 733 v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]]; 734 735 for (j=0 ; j<2 ; j++) 736 { 737 val = v->position[0] * tex->vecs[j][0] + 738 v->position[1] * tex->vecs[j][1] + 739 v->position[2] * tex->vecs[j][2] + 740 tex->vecs[j][3]; 741 if (val < mins[j]) 742 mins[j] = val; 743 if (val > maxs[j]) 744 maxs[j] = val; 745 } 746 } 747 748 for (i=0 ; i<2 ; i++) 749 { 750 bmins[i] = floor(mins[i]/16); 751 bmaxs[i] = ceil(maxs[i]/16); 752 753 s->texturemins[i] = bmins[i] * 16; 754 s->extents[i] = (bmaxs[i] - bmins[i]) * 16; 755 if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 256) 756 Sys_Error ("Bad surface extents"); 757 } 758 } 759 760 761 /* 762 ================= 763 Mod_LoadFaces 764 ================= 765 */ 766 void Mod_LoadFaces (lump_t *l) 767 { 768 dface_t *in; 769 msurface_t *out; 770 int i, count, surfnum; 771 int planenum, side; 772 773 in = (void *)(mod_base + l->fileofs); 774 if (l->filelen % sizeof(*in)) 775 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 776 count = l->filelen / sizeof(*in); 777 out = Hunk_AllocName ( count*sizeof(*out), loadname); 778 779 loadmodel->surfaces = out; 780 loadmodel->numsurfaces = count; 781 782 for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++) 783 { 784 out->firstedge = LittleLong(in->firstedge); 785 out->numedges = LittleShort(in->numedges); 786 out->flags = 0; 787 788 planenum = LittleShort(in->planenum); 789 side = LittleShort(in->side); 790 if (side) 791 out->flags |= SURF_PLANEBACK; 792 793 out->plane = loadmodel->planes + planenum; 794 795 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo); 796 797 CalcSurfaceExtents (out); 798 799 // lighting info 800 801 for (i=0 ; i<MAXLIGHTMAPS ; i++) 802 out->styles[i] = in->styles[i]; 803 i = LittleLong(in->lightofs); 804 if (i == -1) 805 out->samples = NULL; 806 else 807 out->samples = loadmodel->lightdata + i; 808 809 // set the drawing flags flag 810 811 if (!Q_strncmp(out->texinfo->texture->name,"sky",3)) // sky 812 { 813 out->flags |= (SURF_DRAWSKY | SURF_DRAWTILED); 814 continue; 815 } 816 817 if (!Q_strncmp(out->texinfo->texture->name,"*",1)) // turbulent 818 { 819 out->flags |= (SURF_DRAWTURB | SURF_DRAWTILED); 820 for (i=0 ; i<2 ; i++) 821 { 822 out->extents[i] = 16384; 823 out->texturemins[i] = -8192; 824 } 825 continue; 826 } 827 } 828 } 829 830 831 /* 832 ================= 833 Mod_SetParent 834 ================= 835 */ 836 void Mod_SetParent (mnode_t *node, mnode_t *parent) 837 { 838 node->parent = parent; 839 if (node->contents < 0) 840 return; 841 Mod_SetParent (node->children[0], node); 842 Mod_SetParent (node->children[1], node); 843 } 844 845 /* 846 ================= 847 Mod_LoadNodes 848 ================= 849 */ 850 void Mod_LoadNodes (lump_t *l) 851 { 852 int i, j, count, p; 853 dnode_t *in; 854 mnode_t *out; 855 856 in = (void *)(mod_base + l->fileofs); 857 if (l->filelen % sizeof(*in)) 858 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 859 count = l->filelen / sizeof(*in); 860 out = Hunk_AllocName ( count*sizeof(*out), loadname); 861 862 loadmodel->nodes = out; 863 loadmodel->numnodes = count; 864 865 for ( i=0 ; i<count ; i++, in++, out++) 866 { 867 for (j=0 ; j<3 ; j++) 868 { 869 out->minmaxs[j] = LittleShort (in->mins[j]); 870 out->minmaxs[3+j] = LittleShort (in->maxs[j]); 871 } 872 873 p = LittleLong(in->planenum); 874 out->plane = loadmodel->planes + p; 875 876 out->firstsurface = LittleShort (in->firstface); 877 out->numsurfaces = LittleShort (in->numfaces); 878 879 for (j=0 ; j<2 ; j++) 880 { 881 p = LittleShort (in->children[j]); 882 if (p >= 0) 883 out->children[j] = loadmodel->nodes + p; 884 else 885 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p)); 886 } 887 } 888 889 Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs 890 } 891 892 /* 893 ================= 894 Mod_LoadLeafs 895 ================= 896 */ 897 void Mod_LoadLeafs (lump_t *l) 898 { 899 dleaf_t *in; 900 mleaf_t *out; 901 int i, j, count, p; 902 903 in = (void *)(mod_base + l->fileofs); 904 if (l->filelen % sizeof(*in)) 905 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 906 count = l->filelen / sizeof(*in); 907 out = Hunk_AllocName ( count*sizeof(*out), loadname); 908 909 loadmodel->leafs = out; 910 loadmodel->numleafs = count; 911 912 for ( i=0 ; i<count ; i++, in++, out++) 913 { 914 for (j=0 ; j<3 ; j++) 915 { 916 out->minmaxs[j] = LittleShort (in->mins[j]); 917 out->minmaxs[3+j] = LittleShort (in->maxs[j]); 918 } 919 920 p = LittleLong(in->contents); 921 out->contents = p; 922 923 out->firstmarksurface = loadmodel->marksurfaces + 924 LittleShort(in->firstmarksurface); 925 out->nummarksurfaces = LittleShort(in->nummarksurfaces); 926 927 p = LittleLong(in->visofs); 928 if (p == -1) 929 out->compressed_vis = NULL; 930 else 931 out->compressed_vis = loadmodel->visdata + p; 932 out->efrags = NULL; 933 934 for (j=0 ; j<4 ; j++) 935 out->ambient_sound_level[j] = in->ambient_level[j]; 936 } 937 } 938 939 /* 940 ================= 941 Mod_LoadClipnodes 942 ================= 943 */ 944 void Mod_LoadClipnodes (lump_t *l) 945 { 946 dclipnode_t *in, *out; 947 int i, count; 948 hull_t *hull; 949 950 in = (void *)(mod_base + l->fileofs); 951 if (l->filelen % sizeof(*in)) 952 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 953 count = l->filelen / sizeof(*in); 954 out = Hunk_AllocName ( count*sizeof(*out), loadname); 955 956 loadmodel->clipnodes = out; 957 loadmodel->numclipnodes = count; 958 959 hull = &loadmodel->hulls[1]; 960 hull->clipnodes = out; 961 hull->firstclipnode = 0; 962 hull->lastclipnode = count-1; 963 hull->planes = loadmodel->planes; 964 hull->clip_mins[0] = -16; 965 hull->clip_mins[1] = -16; 966 hull->clip_mins[2] = -24; 967 hull->clip_maxs[0] = 16; 968 hull->clip_maxs[1] = 16; 969 hull->clip_maxs[2] = 32; 970 971 hull = &loadmodel->hulls[2]; 972 hull->clipnodes = out; 973 hull->firstclipnode = 0; 974 hull->lastclipnode = count-1; 975 hull->planes = loadmodel->planes; 976 hull->clip_mins[0] = -32; 977 hull->clip_mins[1] = -32; 978 hull->clip_mins[2] = -24; 979 hull->clip_maxs[0] = 32; 980 hull->clip_maxs[1] = 32; 981 hull->clip_maxs[2] = 64; 982 983 for (i=0 ; i<count ; i++, out++, in++) 984 { 985 out->planenum = LittleLong(in->planenum); 986 out->children[0] = LittleShort(in->children[0]); 987 out->children[1] = LittleShort(in->children[1]); 988 } 989 } 990 991 /* 992 ================= 993 Mod_MakeHull0 994 995 Deplicate the drawing hull structure as a clipping hull 996 ================= 997 */ 998 void Mod_MakeHull0 (void) 999 { 1000 mnode_t *in, *child; 1001 dclipnode_t *out; 1002 int i, j, count; 1003 hull_t *hull; 1004 1005 hull = &loadmodel->hulls[0]; 1006 1007 in = loadmodel->nodes; 1008 count = loadmodel->numnodes; 1009 out = Hunk_AllocName ( count*sizeof(*out), loadname); 1010 1011 hull->clipnodes = out; 1012 hull->firstclipnode = 0; 1013 hull->lastclipnode = count-1; 1014 hull->planes = loadmodel->planes; 1015 1016 for (i=0 ; i<count ; i++, out++, in++) 1017 { 1018 out->planenum = in->plane - loadmodel->planes; 1019 for (j=0 ; j<2 ; j++) 1020 { 1021 child = in->children[j]; 1022 if (child->contents < 0) 1023 out->children[j] = child->contents; 1024 else 1025 out->children[j] = child - loadmodel->nodes; 1026 } 1027 } 1028 } 1029 1030 /* 1031 ================= 1032 Mod_LoadMarksurfaces 1033 ================= 1034 */ 1035 void Mod_LoadMarksurfaces (lump_t *l) 1036 { 1037 int i, j, count; 1038 short *in; 1039 msurface_t **out; 1040 1041 in = (void *)(mod_base + l->fileofs); 1042 if (l->filelen % sizeof(*in)) 1043 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1044 count = l->filelen / sizeof(*in); 1045 out = Hunk_AllocName ( count*sizeof(*out), loadname); 1046 1047 loadmodel->marksurfaces = out; 1048 loadmodel->nummarksurfaces = count; 1049 1050 for ( i=0 ; i<count ; i++) 1051 { 1052 j = LittleShort(in[i]); 1053 if (j >= loadmodel->numsurfaces) 1054 Sys_Error ("Mod_ParseMarksurfaces: bad surface number"); 1055 out[i] = loadmodel->surfaces + j; 1056 } 1057 } 1058 1059 /* 1060 ================= 1061 Mod_LoadSurfedges 1062 ================= 1063 */ 1064 void Mod_LoadSurfedges (lump_t *l) 1065 { 1066 int i, count; 1067 int *in, *out; 1068 1069 in = (void *)(mod_base + l->fileofs); 1070 if (l->filelen % sizeof(*in)) 1071 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1072 count = l->filelen / sizeof(*in); 1073 out = Hunk_AllocName ( count*sizeof(*out), loadname); 1074 1075 loadmodel->surfedges = out; 1076 loadmodel->numsurfedges = count; 1077 1078 for ( i=0 ; i<count ; i++) 1079 out[i] = LittleLong (in[i]); 1080 } 1081 1082 /* 1083 ================= 1084 Mod_LoadPlanes 1085 ================= 1086 */ 1087 void Mod_LoadPlanes (lump_t *l) 1088 { 1089 int i, j; 1090 mplane_t *out; 1091 dplane_t *in; 1092 int count; 1093 int bits; 1094 1095 in = (void *)(mod_base + l->fileofs); 1096 if (l->filelen % sizeof(*in)) 1097 Sys_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name); 1098 count = l->filelen / sizeof(*in); 1099 out = Hunk_AllocName ( count*2*sizeof(*out), loadname); 1100 1101 loadmodel->planes = out; 1102 loadmodel->numplanes = count; 1103 1104 for ( i=0 ; i<count ; i++, in++, out++) 1105 { 1106 bits = 0; 1107 for (j=0 ; j<3 ; j++) 1108 { 1109 out->normal[j] = LittleFloat (in->normal[j]); 1110 if (out->normal[j] < 0) 1111 bits |= 1<<j; 1112 } 1113 1114 out->dist = LittleFloat (in->dist); 1115 out->type = LittleLong (in->type); 1116 out->signbits = bits; 1117 } 1118 } 1119 1120 /* 1121 ================= 1122 RadiusFromBounds 1123 ================= 1124 */ 1125 float RadiusFromBounds (vec3_t mins, vec3_t maxs) 1126 { 1127 int i; 1128 vec3_t corner; 1129 1130 for (i=0 ; i<3 ; i++) 1131 { 1132 corner[i] = fabs(mins[i]) > fabs(maxs[i]) ? fabs(mins[i]) : fabs(maxs[i]); 1133 } 1134 1135 return Length (corner); 1136 } 1137 1138 /* 1139 ================= 1140 Mod_LoadBrushModel 1141 ================= 1142 */ 1143 void Mod_LoadBrushModel (model_t *mod, void *buffer) 1144 { 1145 int i, j; 1146 dheader_t *header; 1147 dmodel_t *bm; 1148 1149 loadmodel->type = mod_brush; 1150 1151 header = (dheader_t *)buffer; 1152 1153 i = LittleLong (header->version); 1154 if (i != BSPVERSION) 1155 Sys_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i)", mod->name, i, BSPVERSION); 1156 1157 // swap all the lumps 1158 mod_base = (byte *)header; 1159 1160 for (i=0 ; i<sizeof(dheader_t)/4 ; i++) 1161 ((int *)header)[i] = LittleLong ( ((int *)header)[i]); 1162 1163 // load into heap 1164 1165 Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]); 1166 Mod_LoadEdges (&header->lumps[LUMP_EDGES]); 1167 Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]); 1168 Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]); 1169 Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]); 1170 Mod_LoadPlanes (&header->lumps[LUMP_PLANES]); 1171 Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]); 1172 Mod_LoadFaces (&header->lumps[LUMP_FACES]); 1173 Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]); 1174 Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]); 1175 Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]); 1176 Mod_LoadNodes (&header->lumps[LUMP_NODES]); 1177 Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]); 1178 Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]); 1179 Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]); 1180 1181 Mod_MakeHull0 (); 1182 1183 mod->numframes = 2; // regular and alternate animation 1184 mod->flags = 0; 1185 1186 // 1187 // set up the submodels (FIXME: this is confusing) 1188 // 1189 for (i=0 ; i<mod->numsubmodels ; i++) 1190 { 1191 bm = &mod->submodels[i]; 1192 1193 mod->hulls[0].firstclipnode = bm->headnode[0]; 1194 for (j=1 ; j<MAX_MAP_HULLS ; j++) 1195 { 1196 mod->hulls[j].firstclipnode = bm->headnode[j]; 1197 mod->hulls[j].lastclipnode = mod->numclipnodes-1; 1198 } 1199 1200 mod->firstmodelsurface = bm->firstface; 1201 mod->nummodelsurfaces = bm->numfaces; 1202 1203 VectorCopy (bm->maxs, mod->maxs); 1204 VectorCopy (bm->mins, mod->mins); 1205 mod->radius = RadiusFromBounds (mod->mins, mod->maxs); 1206 1207 mod->numleafs = bm->visleafs; 1208 1209 if (i < mod->numsubmodels-1) 1210 { // duplicate the basic information 1211 char name[10]; 1212 1213 sprintf (name, "*%i", i+1); 1214 loadmodel = Mod_FindName (name); 1215 *loadmodel = *mod; 1216 strcpy (loadmodel->name, name); 1217 mod = loadmodel; 1218 } 1219 } 1220 } 1221 1222 /* 1223 ============================================================================== 1224 1225 ALIAS MODELS 1226 1227 ============================================================================== 1228 */ 1229 1230 /* 1231 ================= 1232 Mod_LoadAliasFrame 1233 ================= 1234 */ 1235 void * Mod_LoadAliasFrame (void * pin, int *pframeindex, int numv, 1236 trivertx_t *pbboxmin, trivertx_t *pbboxmax, aliashdr_t *pheader, char *name) 1237 { 1238 trivertx_t *pframe, *pinframe; 1239 int i, j; 1240 daliasframe_t *pdaliasframe; 1241 1242 pdaliasframe = (daliasframe_t *)pin; 1243 1244 strcpy (name, pdaliasframe->name); 1245 1246 for (i=0 ; i<3 ; i++) 1247 { 1248 // these are byte values, so we don't have to worry about 1249 // endianness 1250 pbboxmin->v[i] = pdaliasframe->bboxmin.v[i]; 1251 pbboxmax->v[i] = pdaliasframe->bboxmax.v[i]; 1252 } 1253 1254 pinframe = (trivertx_t *)(pdaliasframe + 1); 1255 pframe = Hunk_AllocName (numv * sizeof(*pframe), loadname); 1256 1257 *pframeindex = (byte *)pframe - (byte *)pheader; 1258 1259 for (j=0 ; j<numv ; j++) 1260 { 1261 int k; 1262 1263 // these are all byte values, so no need to deal with endianness 1264 pframe[j].lightnormalindex = pinframe[j].lightnormalindex; 1265 1266 for (k=0 ; k<3 ; k++) 1267 { 1268 pframe[j].v[k] = pinframe[j].v[k]; 1269 } 1270 } 1271 1272 pinframe += numv; 1273 1274 return (void *)pinframe; 1275 } 1276 1277 1278 /* 1279 ================= 1280 Mod_LoadAliasGroup 1281 ================= 1282 */ 1283 void * Mod_LoadAliasGroup (void * pin, int *pframeindex, int numv, 1284 trivertx_t *pbboxmin, trivertx_t *pbboxmax, aliashdr_t *pheader, char *name) 1285 { 1286 daliasgroup_t *pingroup; 1287 maliasgroup_t *paliasgroup; 1288 int i, numframes; 1289 daliasinterval_t *pin_intervals; 1290 float *poutintervals; 1291 void *ptemp; 1292 1293 pingroup = (daliasgroup_t *)pin; 1294 1295 numframes = LittleLong (pingroup->numframes); 1296 1297 paliasgroup = Hunk_AllocName (sizeof (maliasgroup_t) + 1298 (numframes - 1) * sizeof (paliasgroup->frames[0]), loadname); 1299 1300 paliasgroup->numframes = 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 pbboxmin->v[i] = pingroup->bboxmin.v[i]; 1306 pbboxmax->v[i] = pingroup->bboxmax.v[i]; 1307 } 1308 1309 *pframeindex = (byte *)paliasgroup - (byte *)pheader; 1310 1311 pin_intervals = (daliasinterval_t *)(pingroup + 1); 1312 1313 poutintervals = Hunk_AllocName (numframes * sizeof (float), loadname); 1314 1315 paliasgroup->intervals = (byte *)poutintervals - (byte *)pheader; 1316 1317 for (i=0 ; i<numframes ; i++) 1318 { 1319 *poutintervals = LittleFloat (pin_intervals->interval); 1320 if (*poutintervals <= 0.0) 1321 Sys_Error ("Mod_LoadAliasGroup: interval<=0"); 1322 1323 poutintervals++; 1324 pin_intervals++; 1325 } 1326 1327 ptemp = (void *)pin_intervals; 1328 1329 for (i=0 ; i<numframes ; i++) 1330 { 1331 ptemp = Mod_LoadAliasFrame (ptemp, 1332 &paliasgroup->frames[i].frame, 1333 numv, 1334 &paliasgroup->frames[i].bboxmin, 1335 &paliasgroup->frames[i].bboxmax, 1336 pheader, name); 1337 } 1338 1339 return ptemp; 1340 } 1341 1342 1343 /* 1344 ================= 1345 Mod_LoadAliasSkin 1346 ================= 1347 */ 1348 void * Mod_LoadAliasSkin (void * pin, int *pskinindex, int skinsize, 1349 aliashdr_t *pheader) 1350 { 1351 int i; 1352 byte *pskin, *pinskin; 1353 unsigned short *pusskin; 1354 1355 pskin = Hunk_AllocName (skinsize * r_pixbytes, loadname); 1356 pinskin = (byte *)pin; 1357 *pskinindex = (byte *)pskin - (byte *)pheader; 1358 1359 if (r_pixbytes == 1) 1360 { 1361 Q_memcpy (pskin, pinskin, skinsize); 1362 } 1363 else if (r_pixbytes == 2) 1364 { 1365 pusskin = (unsigned short *)pskin; 1366 1367 for (i=0 ; i<skinsize ; i++) 1368 pusskin[i] = d_8to16table[pinskin[i]]; 1369 } 1370 else 1371 { 1372 Sys_Error ("Mod_LoadAliasSkin: driver set invalid r_pixbytes: %d\n", 1373 r_pixbytes); 1374 } 1375 1376 pinskin += skinsize; 1377 1378 return ((void *)pinskin); 1379 } 1380 1381 1382 /* 1383 ================= 1384 Mod_LoadAliasSkinGroup 1385 ================= 1386 */ 1387 void * Mod_LoadAliasSkinGroup (void * pin, int *pskinindex, int skinsize, 1388 aliashdr_t *pheader) 1389 { 1390 daliasskingroup_t *pinskingroup; 1391 maliasskingroup_t *paliasskingroup; 1392 int i, numskins; 1393 daliasskininterval_t *pinskinintervals; 1394 float *poutskinintervals; 1395 void *ptemp; 1396 1397 pinskingroup = (daliasskingroup_t *)pin; 1398 1399 numskins = LittleLong (pinskingroup->numskins); 1400 1401 paliasskingroup = Hunk_AllocName (sizeof (maliasskingroup_t) + 1402 (numskins - 1) * sizeof (paliasskingroup->skindescs[0]), 1403 loadname); 1404 1405 paliasskingroup->numskins = numskins; 1406 1407 *pskinindex = (byte *)paliasskingroup - (byte *)pheader; 1408 1409 pinskinintervals = (daliasskininterval_t *)(pinskingroup + 1); 1410 1411 poutskinintervals = Hunk_AllocName (numskins * sizeof (float),loadname); 1412 1413 paliasskingroup->intervals = (byte *)poutskinintervals - (byte *)pheader; 1414 1415 for (i=0 ; i<numskins ; i++) 1416 { 1417 *poutskinintervals = LittleFloat (pinskinintervals->interval); 1418 if (*poutskinintervals <= 0) 1419 Sys_Error ("Mod_LoadAliasSkinGroup: interval<=0"); 1420 1421 poutskinintervals++; 1422 pinskinintervals++; 1423 } 1424 1425 ptemp = (void *)pinskinintervals; 1426 1427 for (i=0 ; i<numskins ; i++) 1428 { 1429 ptemp = Mod_LoadAliasSkin (ptemp, 1430 &paliasskingroup->skindescs[i].skin, skinsize, pheader); 1431 } 1432 1433 return ptemp; 1434 } 1435 1436 1437 /* 1438 ================= 1439 Mod_LoadAliasModel 1440 ================= 1441 */ 1442 void Mod_LoadAliasModel (model_t *mod, void *buffer) 1443 { 1444 int i; 1445 mdl_t *pmodel, *pinmodel; 1446 stvert_t *pstverts, *pinstverts; 1447 aliashdr_t *pheader; 1448 mtriangle_t *ptri; 1449 dtriangle_t *pintriangles; 1450 int version, numframes, numskins; 1451 int size; 1452 daliasframetype_t *pframetype; 1453 daliasskintype_t *pskintype; 1454 maliasskindesc_t *pskindesc; 1455 int skinsize; 1456 int start, end, total; 1457 1458 start = Hunk_LowMark (); 1459 1460 pinmodel = (mdl_t *)buffer; 1461 1462 version = LittleLong (pinmodel->version); 1463 if (version != ALIAS_VERSION) 1464 Sys_Error ("%s has wrong version number (%i should be %i)", 1465 mod->name, version, ALIAS_VERSION); 1466 1467 // 1468 // allocate space for a working header, plus all the data except the frames, 1469 // skin and group info 1470 // 1471 size = sizeof (aliashdr_t) + (LittleLong (pinmodel->numframes) - 1) * 1472 sizeof (pheader->frames[0]) + 1473 sizeof (mdl_t) + 1474 LittleLong (pinmodel->numverts) * sizeof (stvert_t) + 1475 LittleLong (pinmodel->numtris) * sizeof (mtriangle_t); 1476 1477 pheader = Hunk_AllocName (size, loadname); 1478 pmodel = (mdl_t *) ((byte *)&pheader[1] + 1479 (LittleLong (pinmodel->numframes) - 1) * 1480 sizeof (pheader->frames[0])); 1481 1482 // mod->cache.data = pheader; 1483 mod->flags = LittleLong (pinmodel->flags); 1484 1485 // 1486 // endian-adjust and copy the data, starting with the alias model header 1487 // 1488 pmodel->boundingradius = LittleFloat (pinmodel->boundingradius); 1489 pmodel->numskins = LittleLong (pinmodel->numskins); 1490 pmodel->skinwidth = LittleLong (pinmodel->skinwidth); 1491 pmodel->skinheight = LittleLong (pinmodel->skinheight); 1492 1493 if (pmodel->skinheight > MAX_LBM_HEIGHT) 1494 Sys_Error ("model %s has a skin taller than %d", mod->name, 1495 MAX_LBM_HEIGHT); 1496 1497 pmodel->numverts = LittleLong (pinmodel->numverts); 1498 1499 if (pmodel->numverts <= 0) 1500 Sys_Error ("model %s has no vertices", mod->name); 1501 1502 if (pmodel->numverts > MAXALIASVERTS) 1503 Sys_Error ("model %s has too many vertices", mod->name); 1504 1505 pmodel->numtris = LittleLong (pinmodel->numtris); 1506 1507 if (pmodel->numtris <= 0) 1508 Sys_Error ("model %s has no triangles", mod->name); 1509 1510 pmodel->numframes = LittleLong (pinmodel->numframes); 1511 pmodel->size = LittleFloat (pinmodel->size) * ALIAS_BASE_SIZE_RATIO; 1512 mod->synctype = LittleLong (pinmodel->synctype); 1513 mod->numframes = pmodel->numframes; 1514 1515 for (i=0 ; i<3 ; i++) 1516 { 1517 pmodel->scale[i] = LittleFloat (pinmodel->scale[i]); 1518 pmodel->scale_origin[i] = LittleFloat (pinmodel->scale_origin[i]); 1519 pmodel->eyeposition[i] = LittleFloat (pinmodel->eyeposition[i]); 1520 } 1521 1522 numskins = pmodel->numskins; 1523 numframes = pmodel->numframes; 1524 1525 if (pmodel->skinwidth & 0x03) 1526 Sys_Error ("Mod_LoadAliasModel: skinwidth not multiple of 4"); 1527 1528 pheader->model = (byte *)pmodel - (byte *)pheader; 1529 1530 // 1531 // load the skins 1532 // 1533 skinsize = pmodel->skinheight * pmodel->skinwidth; 1534 1535 if (numskins < 1) 1536 Sys_Error ("Mod_LoadAliasModel: Invalid # of skins: %d\n", numskins); 1537 1538 pskintype = (daliasskintype_t *)&pinmodel[1]; 1539 1540 pskindesc = Hunk_AllocName (numskins * sizeof (maliasskindesc_t), 1541 loadname); 1542 1543 pheader->skindesc = (byte *)pskindesc - (byte *)pheader; 1544 1545 for (i=0 ; i<numskins ; i++) 1546 { 1547 aliasskintype_t skintype; 1548 1549 skintype = LittleLong (pskintype->type); 1550 pskindesc[i].type = skintype; 1551 1552 if (skintype == ALIAS_SKIN_SINGLE) 1553 { 1554 pskintype = (daliasskintype_t *) 1555 Mod_LoadAliasSkin (pskintype + 1, 1556 &pskindesc[i].skin, 1557 skinsize, pheader); 1558 } 1559 else 1560 { 1561 pskintype = (daliasskintype_t *) 1562 Mod_LoadAliasSkinGroup (pskintype + 1, 1563 &pskindesc[i].skin, 1564 skinsize, pheader); 1565 } 1566 } 1567 1568 // 1569 // set base s and t vertices 1570 // 1571 pstverts = (stvert_t *)&pmodel[1]; 1572 pinstverts = (stvert_t *)pskintype; 1573 1574 pheader->stverts = (byte *)pstverts - (byte *)pheader; 1575 1576 for (i=0 ; i<pmodel->numverts ; i++) 1577 { 1578 pstverts[i].onseam = LittleLong (pinstverts[i].onseam); 1579 // put s and t in 16.16 format 1580 pstverts[i].s = LittleLong (pinstverts[i].s) << 16; 1581 pstverts[i].t = LittleLong (pinstverts[i].t) << 16; 1582 } 1583 1584 // 1585 // set up the triangles 1586 // 1587 ptri = (mtriangle_t *)&pstverts[pmodel->numverts]; 1588 pintriangles = (dtriangle_t *)&pinstverts[pmodel->numverts]; 1589 1590 pheader->triangles = (byte *)ptri - (byte *)pheader; 1591 1592 for (i=0 ; i<pmodel->numtris ; i++) 1593 { 1594 int j; 1595 1596 ptri[i].facesfront = LittleLong (pintriangles[i].facesfront); 1597 1598 for (j=0 ; j<3 ; j++) 1599 { 1600 ptri[i].vertindex[j] = 1601 LittleLong (pintriangles[i].vertindex[j]); 1602 } 1603 } 1604 1605 // 1606 // load the frames 1607 // 1608 if (numframes < 1) 1609 Sys_Error ("Mod_LoadAliasModel: Invalid # of frames: %d\n", numframes); 1610 1611 pframetype = (daliasframetype_t *)&pintriangles[pmodel->numtris]; 1612 1613 for (i=0 ; i<numframes ; i++) 1614 { 1615 aliasframetype_t frametype; 1616 1617 frametype = LittleLong (pframetype->type); 1618 pheader->frames[i].type = frametype; 1619 1620 if (frametype == ALIAS_SINGLE) 1621 { 1622 pframetype = (daliasframetype_t *) 1623 Mod_LoadAliasFrame (pframetype + 1, 1624 &pheader->frames[i].frame, 1625 pmodel->numverts, 1626 &pheader->frames[i].bboxmin, 1627 &pheader->frames[i].bboxmax, 1628 pheader, pheader->frames[i].name); 1629 } 1630 else 1631 { 1632 pframetype = (daliasframetype_t *) 1633 Mod_LoadAliasGroup (pframetype + 1, 1634 &pheader->frames[i].frame, 1635 pmodel->numverts, 1636 &pheader->frames[i].bboxmin, 1637 &pheader->frames[i].bboxmax, 1638 pheader, pheader->frames[i].name); 1639 } 1640 } 1641 1642 mod->type = mod_alias; 1643 1644 // FIXME: do this right 1645 mod->mins[0] = mod->mins[1] = mod->mins[2] = -16; 1646 mod->maxs[0] = mod->maxs[1] = mod->maxs[2] = 16; 1647 1648 // 1649 // move the complete, relocatable alias model to the cache 1650 // 1651 end = Hunk_LowMark (); 1652 total = end - start; 1653 1654 Cache_Alloc (&mod->cache, total, loadname); 1655 if (!mod->cache.data) 1656 return; 1657 memcpy (mod->cache.data, pheader, total); 1658 1659 Hunk_FreeToLowMark (start); 1660 } 1661 1662 //============================================================================= 1663 1664 /* 1665 ================= 1666 Mod_LoadSpriteFrame 1667 ================= 1668 */ 1669 void * Mod_LoadSpriteFrame (void * pin, mspriteframe_t **ppframe) 1670 { 1671 dspriteframe_t *pinframe; 1672 mspriteframe_t *pspriteframe; 1673 int i, width, height, size, origin[2]; 1674 unsigned short *ppixout; 1675 byte *ppixin; 1676 1677 pinframe = (dspriteframe_t *)pin; 1678 1679 width = LittleLong (pinframe->width); 1680 height = LittleLong (pinframe->height); 1681 size = width * height; 1682 1683 pspriteframe = Hunk_AllocName (sizeof (mspriteframe_t) + size*r_pixbytes, 1684 loadname); 1685 1686 Q_memset (pspriteframe, 0, sizeof (mspriteframe_t) + size); 1687 *ppframe = pspriteframe; 1688 1689 pspriteframe->width = width; 1690 pspriteframe->height = height; 1691 origin[0] = LittleLong (pinframe->origin[0]); 1692 origin[1] = LittleLong (pinframe->origin[1]); 1693 1694 pspriteframe->up = origin[1]; 1695 pspriteframe->down = origin[1] - height; 1696 pspriteframe->left = origin[0]; 1697 pspriteframe->right = width + origin[0]; 1698 1699 if (r_pixbytes == 1) 1700 { 1701 Q_memcpy (&pspriteframe->pixels[0], (byte *)(pinframe + 1), size); 1702 } 1703 else if (r_pixbytes == 2) 1704 { 1705 ppixin = (byte *)(pinframe + 1); 1706 ppixout = (unsigned short *)&pspriteframe->pixels[0]; 1707 1708 for (i=0 ; i<size ; i++) 1709 ppixout[i] = d_8to16table[ppixin[i]]; 1710 } 1711 else 1712 { 1713 Sys_Error ("Mod_LoadSpriteFrame: driver set invalid r_pixbytes: %d\n", 1714 r_pixbytes); 1715 } 1716 1717 return (void *)((byte *)pinframe + sizeof (dspriteframe_t) + size); 1718 } 1719 1720 1721 /* 1722 ================= 1723 Mod_LoadSpriteGroup 1724 ================= 1725 */ 1726 void * Mod_LoadSpriteGroup (void * pin, mspriteframe_t **ppframe) 1727 { 1728 dspritegroup_t *pingroup; 1729 mspritegroup_t *pspritegroup; 1730 int i, numframes; 1731 dspriteinterval_t *pin_intervals; 1732 float *poutintervals; 1733 void *ptemp; 1734 1735 pingroup = (dspritegroup_t *)pin; 1736 1737 numframes = LittleLong (pingroup->numframes); 1738 1739 pspritegroup = Hunk_AllocName (sizeof (mspritegroup_t) + 1740 (numframes - 1) * sizeof (pspritegroup->frames[0]), loadname); 1741 1742 pspritegroup->numframes = numframes; 1743 1744 *ppframe = (mspriteframe_t *)pspritegroup; 1745 1746 pin_intervals = (dspriteinterval_t *)(pingroup + 1); 1747 1748 poutintervals = Hunk_AllocName (numframes * sizeof (float), loadname); 1749 1750 pspritegroup->intervals = poutintervals; 1751 1752 for (i=0 ; i<numframes ; i++) 1753 { 1754 *poutintervals = LittleFloat (pin_intervals->interval); 1755 if (*poutintervals <= 0.0) 1756 Sys_Error ("Mod_LoadSpriteGroup: interval<=0"); 1757 1758 poutintervals++; 1759 pin_intervals++; 1760 } 1761 1762 ptemp = (void *)pin_intervals; 1763 1764 for (i=0 ; i<numframes ; i++) 1765 { 1766 ptemp = Mod_LoadSpriteFrame (ptemp, &pspritegroup->frames[i]); 1767 } 1768 1769 return ptemp; 1770 } 1771 1772 1773 /* 1774 ================= 1775 Mod_LoadSpriteModel 1776 ================= 1777 */ 1778 void Mod_LoadSpriteModel (model_t *mod, void *buffer) 1779 { 1780 int i; 1781 int version; 1782 dsprite_t *pin; 1783 msprite_t *psprite; 1784 int numframes; 1785 int size; 1786 dspriteframetype_t *pframetype; 1787 1788 pin = (dsprite_t *)buffer; 1789 1790 version = LittleLong (pin->version); 1791 if (version != SPRITE_VERSION) 1792 Sys_Error ("%s has wrong version number " 1793 "(%i should be %i)", mod->name, version, SPRITE_VERSION); 1794 1795 numframes = LittleLong (pin->numframes); 1796 1797 size = sizeof (msprite_t) + (numframes - 1) * sizeof (psprite->frames); 1798 1799 psprite = Hunk_AllocName (size, loadname); 1800 1801 mod->cache.data = psprite; 1802 1803 psprite->type = LittleLong (pin->type); 1804 psprite->maxwidth = LittleLong (pin->width); 1805 psprite->maxheight = LittleLong (pin->height); 1806 psprite->beamlength = LittleFloat (pin->beamlength); 1807 mod->synctype = LittleLong (pin->synctype); 1808 psprite->numframes = numframes; 1809 1810 mod->mins[0] = mod->mins[1] = -psprite->maxwidth/2; 1811 mod->maxs[0] = mod->maxs[1] = psprite->maxwidth/2; 1812 mod->mins[2] = -psprite->maxheight/2; 1813 mod->maxs[2] = psprite->maxheight/2; 1814 1815 // 1816 // load the frames 1817 // 1818 if (numframes < 1) 1819 Sys_Error ("Mod_LoadSpriteModel: Invalid # of frames: %d\n", numframes); 1820 1821 mod->numframes = numframes; 1822 mod->flags = 0; 1823 1824 pframetype = (dspriteframetype_t *)(pin + 1); 1825 1826 for (i=0 ; i<numframes ; i++) 1827 { 1828 spriteframetype_t frametype; 1829 1830 frametype = LittleLong (pframetype->type); 1831 psprite->frames[i].type = frametype; 1832 1833 if (frametype == SPR_SINGLE) 1834 { 1835 pframetype = (dspriteframetype_t *) 1836 Mod_LoadSpriteFrame (pframetype + 1, 1837 &psprite->frames[i].frameptr); 1838 } 1839 else 1840 { 1841 pframetype = (dspriteframetype_t *) 1842 Mod_LoadSpriteGroup (pframetype + 1, 1843 &psprite->frames[i].frameptr); 1844 } 1845 } 1846 1847 mod->type = mod_sprite; 1848 } 1849 1850 //============================================================================= 1851 1852 /* 1853 ================ 1854 Mod_Print 1855 ================ 1856 */ 1857 void Mod_Print (void) 1858 { 1859 int i; 1860 model_t *mod; 1861 1862 Con_Printf ("Cached models:\n"); 1863 for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++) 1864 { 1865 Con_Printf ("%8p : %s",mod->cache.data, mod->name); 1866 if (mod->needload & NL_UNREFERENCED) 1867 Con_Printf (" (!R)"); 1868 if (mod->needload & NL_NEEDS_LOADED) 1869 Con_Printf (" (!P)"); 1870 Con_Printf ("\n"); 1871 } 1872 } 1873 1874 1875
