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git-svn-id: http://bladebattles.com/kurok/SVN@11 20cd92bb-ff49-0410-b73e-96a06e42c3b9
[kurok.git] / model.c
blob72f127d26ba7a4c5ef419cc42834aa77ecd577ba
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);
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 / floorf( (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] = floorf(mins[i]/16);
751 bmaxs[i] = ceilf(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] = fabsf(mins[i]) > fabsf(maxs[i]) ? fabsf(mins[i]) : fabsf(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
You play as Kurok, the long lost brother to someone else that resembles his name.