5 |
|
* Mesh support routines |
6 |
|
*/ |
7 |
|
|
8 |
– |
#include <string.h> |
9 |
– |
|
8 |
|
#include "rtio.h" |
9 |
|
#include "rtmath.h" |
10 |
|
#include "rterror.h" |
50 |
|
cvcmp(const char *vv1, const char *vv2) /* compare encoded vertices */ |
51 |
|
{ |
52 |
|
const MCVERT *v1 = (const MCVERT *)vv1, *v2 = (const MCVERT *)vv2; |
53 |
+ |
|
54 |
|
if (v1->fl != v2->fl) |
55 |
|
return(1); |
56 |
|
if (v1->xyz[0] != v2->xyz[0]) |
72 |
|
|
73 |
|
|
74 |
|
MESH * |
75 |
< |
getmesh(mname, flags) /* get new mesh data reference */ |
76 |
< |
char *mname; |
77 |
< |
int flags; |
75 |
> |
getmesh( /* get new mesh data reference */ |
76 |
> |
char *mname, |
77 |
> |
int flags |
78 |
> |
) |
79 |
|
{ |
80 |
|
char *pathname; |
81 |
< |
register MESH *ms; |
81 |
> |
MESH *ms; |
82 |
|
|
83 |
|
flags &= IO_LEGAL; |
84 |
|
for (ms = mlist; ms != NULL; ms = ms->next) |
98 |
|
} |
99 |
|
if ((pathname = getpath(mname, getrlibpath(), R_OK)) == NULL) { |
100 |
|
sprintf(errmsg, "cannot find mesh file \"%s\"", mname); |
101 |
< |
error(USER, errmsg); |
101 |
> |
error(SYSTEM, errmsg); |
102 |
|
} |
103 |
|
flags &= ~ms->ldflags; |
104 |
|
if (flags) |
108 |
|
|
109 |
|
|
110 |
|
MESHINST * |
111 |
< |
getmeshinst(o, flags) /* create mesh instance */ |
112 |
< |
OBJREC *o; |
113 |
< |
int flags; |
111 |
> |
getmeshinst( /* create mesh instance */ |
112 |
> |
OBJREC *o, |
113 |
> |
int flags |
114 |
> |
) |
115 |
|
{ |
116 |
< |
register MESHINST *ins; |
116 |
> |
MESHINST *ins; |
117 |
|
|
118 |
|
flags &= IO_LEGAL; |
119 |
|
if ((ins = (MESHINST *)o->os) == NULL) { |
142 |
|
|
143 |
|
|
144 |
|
int |
145 |
< |
getmeshtrivid(tvid, mo, mp, ti) /* get triangle vertex ID's */ |
146 |
< |
int32 tvid[3]; |
147 |
< |
OBJECT *mo; |
148 |
< |
MESH *mp; |
148 |
< |
OBJECT ti; |
145 |
> |
nextmeshtri( /* get next triangle ID */ |
146 |
> |
OBJECT *tip, |
147 |
> |
MESH *mp |
148 |
> |
) |
149 |
|
{ |
150 |
+ |
int pn; |
151 |
+ |
MESHPATCH *pp; |
152 |
+ |
|
153 |
+ |
pn = ++(*tip) >> 10; /* next triangle (OVOID init) */ |
154 |
+ |
while (pn < mp->npatches) { |
155 |
+ |
pp = &mp->patch[pn]; |
156 |
+ |
if (!(*tip & 0x200)) { /* local triangle? */ |
157 |
+ |
if ((*tip & 0x1ff) < pp->ntris) |
158 |
+ |
return(1); |
159 |
+ |
*tip &= ~0x1ff; /* move on to single-joiners */ |
160 |
+ |
*tip |= 0x200; |
161 |
+ |
} |
162 |
+ |
if (!(*tip & 0x100)) { /* single joiner? */ |
163 |
+ |
if ((*tip & 0xff) < pp->nj1tris) |
164 |
+ |
return(1); |
165 |
+ |
*tip &= ~0xff; /* move on to double-joiners */ |
166 |
+ |
*tip |= 0x100; |
167 |
+ |
} |
168 |
+ |
if ((*tip & 0xff) < pp->nj2tris) |
169 |
+ |
return(1); |
170 |
+ |
*tip = ++pn << 10; /* first in next patch */ |
171 |
+ |
} |
172 |
+ |
return(0); /* out of patches */ |
173 |
+ |
} |
174 |
+ |
|
175 |
+ |
int |
176 |
+ |
getmeshtrivid( /* get triangle vertex ID's */ |
177 |
+ |
int32 tvid[3], |
178 |
+ |
OBJECT *mo, |
179 |
+ |
MESH *mp, |
180 |
+ |
OBJECT ti |
181 |
+ |
) |
182 |
+ |
{ |
183 |
|
int pn = ti >> 10; |
184 |
|
MESHPATCH *pp; |
185 |
|
|
235 |
|
|
236 |
|
|
237 |
|
int |
238 |
< |
getmeshvert(vp, mp, vid, what) /* get triangle vertex from ID */ |
239 |
< |
MESHVERT *vp; |
240 |
< |
MESH *mp; |
241 |
< |
int32 vid; |
242 |
< |
int what; |
238 |
> |
getmeshvert( /* get triangle vertex from ID */ |
239 |
> |
MESHVERT *vp, |
240 |
> |
MESH *mp, |
241 |
> |
int32 vid, |
242 |
> |
int what |
243 |
> |
) |
244 |
|
{ |
245 |
|
int pn = vid >> 8; |
246 |
|
MESHPATCH *pp; |
247 |
|
double vres; |
248 |
< |
register int i; |
248 |
> |
int i; |
249 |
|
|
250 |
|
vp->fl = 0; |
251 |
|
if (pn >= mp->npatches) |
280 |
|
|
281 |
|
|
282 |
|
OBJREC * |
283 |
< |
getmeshpseudo(mp, mo) /* get mesh pseudo object for material */ |
284 |
< |
MESH *mp; |
285 |
< |
OBJECT mo; |
283 |
> |
getmeshpseudo( /* get mesh pseudo object for material */ |
284 |
> |
MESH *mp, |
285 |
> |
OBJECT mo |
286 |
> |
) |
287 |
|
{ |
288 |
< |
if (mo < mp->mat0 || mo >= mp->mat0 + mp->nmats) |
288 |
> |
if ((mo < mp->mat0) | (mo >= mp->mat0 + mp->nmats)) |
289 |
|
error(INTERNAL, "modifier out of range in getmeshpseudo"); |
290 |
|
if (mp->pseudo == NULL) { |
291 |
< |
register int i; |
291 |
> |
int i; |
292 |
|
mp->pseudo = (OBJREC *)calloc(mp->nmats, sizeof(OBJREC)); |
293 |
|
if (mp->pseudo == NULL) |
294 |
|
error(SYSTEM, "out of memory in getmeshpseudo"); |
303 |
|
|
304 |
|
|
305 |
|
int |
306 |
< |
getmeshtri(tv, mo, mp, ti, wha) /* get triangle vertices */ |
307 |
< |
MESHVERT tv[3]; |
308 |
< |
OBJECT *mo; |
309 |
< |
MESH *mp; |
310 |
< |
OBJECT ti; |
311 |
< |
int wha; |
306 |
> |
getmeshtri( /* get triangle vertices */ |
307 |
> |
MESHVERT tv[3], |
308 |
> |
OBJECT *mo, |
309 |
> |
MESH *mp, |
310 |
> |
OBJECT ti, |
311 |
> |
int wha |
312 |
> |
) |
313 |
|
{ |
314 |
|
int32 tvid[3]; |
315 |
|
|
325 |
|
|
326 |
|
|
327 |
|
int32 |
328 |
< |
addmeshvert(mp, vp) /* find/add a mesh vertex */ |
329 |
< |
register MESH *mp; |
330 |
< |
MESHVERT *vp; |
328 |
> |
addmeshvert( /* find/add a mesh vertex */ |
329 |
> |
MESH *mp, |
330 |
> |
MESHVERT *vp |
331 |
> |
) |
332 |
|
{ |
333 |
< |
LUENT *lvp; |
334 |
< |
MCVERT cv; |
335 |
< |
register int i; |
333 |
> |
LUENT *lvp; |
334 |
> |
MCVERT cv; |
335 |
> |
int i; |
336 |
|
|
337 |
|
if (!(vp->fl & MT_V)) |
338 |
|
return(-1); |
372 |
|
goto nomem; |
373 |
|
if (lvp->key == NULL) { |
374 |
|
lvp->key = (char *)malloc(sizeof(MCVERT)+sizeof(int32)); |
375 |
< |
memcpy((void *)lvp->key, (void *)&cv, sizeof(MCVERT)); |
375 |
> |
memcpy(lvp->key, &cv, sizeof(MCVERT)); |
376 |
|
} |
377 |
|
if (lvp->data == NULL) { /* new vertex */ |
378 |
< |
register MESHPATCH *pp; |
378 |
> |
MESHPATCH *pp; |
379 |
|
if (mp->npatches <= 0) { |
380 |
|
mp->patch = (MESHPATCH *)calloc(MPATCHBLKSIZ, |
381 |
|
sizeof(MESHPATCH)); |
383 |
|
goto nomem; |
384 |
|
mp->npatches = 1; |
385 |
|
} else if (mp->patch[mp->npatches-1].nverts >= 256) { |
386 |
+ |
if (mp->npatches >= 1L<<22) |
387 |
+ |
error(INTERNAL, "too many mesh patches"); |
388 |
|
if (mp->npatches % MPATCHBLKSIZ == 0) { |
389 |
< |
mp->patch = (MESHPATCH *)realloc( |
390 |
< |
(void *)mp->patch, |
391 |
< |
(mp->npatches + MPATCHBLKSIZ)* |
392 |
< |
sizeof(MESHPATCH)); |
354 |
< |
memset((void *)(mp->patch + mp->npatches), '\0', |
389 |
> |
mp->patch = (MESHPATCH *)realloc(mp->patch, |
390 |
> |
(mp->npatches + MPATCHBLKSIZ)* |
391 |
> |
sizeof(MESHPATCH)); |
392 |
> |
memset((mp->patch + mp->npatches), '\0', |
393 |
|
MPATCHBLKSIZ*sizeof(MESHPATCH)); |
394 |
|
} |
395 |
< |
if (mp->npatches++ >= 1L<<22) |
358 |
< |
error(INTERNAL, "too many mesh patches"); |
395 |
> |
mp->npatches++; |
396 |
|
} |
397 |
|
pp = &mp->patch[mp->npatches-1]; |
398 |
|
if (pp->xyz == NULL) { |
432 |
|
|
433 |
|
|
434 |
|
OBJECT |
435 |
< |
addmeshtri(mp, tv, mo) /* add a new mesh triangle */ |
436 |
< |
MESH *mp; |
437 |
< |
MESHVERT tv[3]; |
438 |
< |
OBJECT mo; |
435 |
> |
addmeshtri( /* add a new mesh triangle */ |
436 |
> |
MESH *mp, |
437 |
> |
MESHVERT tv[3], |
438 |
> |
OBJECT mo |
439 |
> |
) |
440 |
|
{ |
441 |
< |
int32 vid[3], t; |
442 |
< |
int pn[3], i; |
443 |
< |
register MESHPATCH *pp; |
441 |
> |
int32 vid[3], t; |
442 |
> |
int pn[3], i; |
443 |
> |
MESHPATCH *pp; |
444 |
|
|
445 |
|
if (!(tv[0].fl & tv[1].fl & tv[2].fl & MT_V)) |
446 |
|
return(OVOID); |
458 |
|
error(INTERNAL, "modifier range error in addmeshtri"); |
459 |
|
} |
460 |
|
/* assign triangle */ |
461 |
< |
if (pn[0] == pn[1] && pn[1] == pn[2]) { /* local case */ |
461 |
> |
if ((pn[0] == pn[1]) & (pn[1] == pn[2])) { /* local case */ |
462 |
|
pp = &mp->patch[pn[0]]; |
463 |
|
if (pp->tri == NULL) { |
464 |
|
pp->tri = (struct PTri *)malloc( |
484 |
|
pp->trimat[pp->ntris] = mo; |
485 |
|
return(pn[0] << 10 | pp->ntris++); |
486 |
|
} |
487 |
< |
} |
450 |
< |
if (pn[0] == pn[1]) { |
487 |
> |
} else if (pn[0] == pn[1]) { |
488 |
|
t = vid[2]; vid[2] = vid[1]; vid[1] = vid[0]; vid[0] = t; |
489 |
|
i = pn[2]; pn[2] = pn[1]; pn[1] = pn[0]; pn[0] = i; |
490 |
|
} else if (pn[0] == pn[2]) { |
508 |
|
} |
509 |
|
} |
510 |
|
/* double link */ |
511 |
< |
pp = &mp->patch[pn[2]]; |
511 |
> |
pp = &mp->patch[pn[i=0]]; |
512 |
> |
if (pp->nj2tris >= 256) |
513 |
> |
pp = &mp->patch[pn[i=1]]; |
514 |
> |
if (pp->nj2tris >= 256) |
515 |
> |
pp = &mp->patch[pn[i=2]]; |
516 |
> |
if (pp->nj2tris >= 256) |
517 |
> |
error(INTERNAL, "too many patch triangles in addmeshtri"); |
518 |
|
if (pp->j2tri == NULL) { |
519 |
|
pp->j2tri = (struct PJoin2 *)malloc( |
520 |
|
256*sizeof(struct PJoin2)); |
521 |
|
if (pp->j2tri == NULL) |
522 |
|
goto nomem; |
523 |
|
} |
481 |
– |
if (pp->nj2tris >= 256) |
482 |
– |
error(INTERNAL, "too many patch triangles in addmeshtri"); |
483 |
– |
pp->j2tri[pp->nj2tris].v1j = vid[0]; |
484 |
– |
pp->j2tri[pp->nj2tris].v2j = vid[1]; |
485 |
– |
pp->j2tri[pp->nj2tris].v3 = vid[2] & 0xff; |
524 |
|
pp->j2tri[pp->nj2tris].mat = mo; |
525 |
< |
return(pn[2] << 10 | 0x300 | pp->nj2tris++); |
525 |
> |
switch (i) { |
526 |
> |
case 0: |
527 |
> |
pp->j2tri[pp->nj2tris].v3 = vid[0] & 0xff; |
528 |
> |
pp->j2tri[pp->nj2tris].v1j = vid[1]; |
529 |
> |
pp->j2tri[pp->nj2tris].v2j = vid[2]; |
530 |
> |
return(pn[0] << 10 | 0x300 | pp->nj2tris++); |
531 |
> |
case 1: |
532 |
> |
pp->j2tri[pp->nj2tris].v2j = vid[0]; |
533 |
> |
pp->j2tri[pp->nj2tris].v3 = vid[1] & 0xff; |
534 |
> |
pp->j2tri[pp->nj2tris].v1j = vid[2]; |
535 |
> |
return(pn[1] << 10 | 0x300 | pp->nj2tris++); |
536 |
> |
case 2: |
537 |
> |
pp->j2tri[pp->nj2tris].v1j = vid[0]; |
538 |
> |
pp->j2tri[pp->nj2tris].v2j = vid[1]; |
539 |
> |
pp->j2tri[pp->nj2tris].v3 = vid[2] & 0xff; |
540 |
> |
return(pn[2] << 10 | 0x300 | pp->nj2tris++); |
541 |
> |
} |
542 |
|
nomem: |
543 |
|
error(SYSTEM, "out of memory in addmeshtri"); |
544 |
|
return(OVOID); |
546 |
|
|
547 |
|
|
548 |
|
char * |
549 |
< |
checkmesh(mp) /* validate mesh data */ |
496 |
< |
register MESH *mp; |
549 |
> |
checkmesh(MESH *mp) /* validate mesh data */ |
550 |
|
{ |
551 |
|
static char embuf[128]; |
552 |
|
int nouvbounds = 1; |
553 |
< |
register int i; |
553 |
> |
int i; |
554 |
|
/* basic checks */ |
555 |
|
if (mp == NULL) |
556 |
|
return("NULL mesh pointer"); |
578 |
|
return("unbounded scene in mesh"); |
579 |
|
if (mp->mat0 < 0 || mp->mat0+mp->nmats > nobjects) |
580 |
|
return("bad mesh modifier range"); |
581 |
+ |
if (mp->nmats > 0) /* allocate during preload_objs()! */ |
582 |
+ |
getmeshpseudo(mp, mp->mat0); |
583 |
|
for (i = mp->mat0+mp->nmats; i-- > mp->mat0; ) { |
584 |
|
int otyp = objptr(i)->otype; |
585 |
|
if (!ismodifier(otyp)) { |
592 |
|
if (mp->npatches <= 0) |
593 |
|
error(WARNING, "no patches in mesh"); |
594 |
|
for (i = 0; i < mp->npatches; i++) { |
595 |
< |
register MESHPATCH *pp = &mp->patch[i]; |
595 |
> |
MESHPATCH *pp = &mp->patch[i]; |
596 |
|
if (pp->nverts <= 0) |
597 |
|
error(WARNING, "no vertices in patch"); |
598 |
|
else { |
614 |
|
|
615 |
|
|
616 |
|
static void |
617 |
< |
tallyoctree(ot, ecp, lcp, ocp) /* tally octree size */ |
618 |
< |
OCTREE ot; |
619 |
< |
int *ecp, *lcp, *ocp; |
617 |
> |
tallyoctree( /* tally octree size */ |
618 |
> |
OCTREE ot, |
619 |
> |
int *ecp, |
620 |
> |
int *lcp, |
621 |
> |
int *ocp |
622 |
> |
) |
623 |
|
{ |
624 |
|
int i; |
625 |
|
|
640 |
|
|
641 |
|
|
642 |
|
void |
643 |
< |
printmeshstats(ms, fp) /* print out mesh statistics */ |
644 |
< |
MESH *ms; |
645 |
< |
FILE *fp; |
643 |
> |
printmeshstats( /* print out mesh statistics */ |
644 |
> |
MESH *ms, |
645 |
> |
FILE *fp |
646 |
> |
) |
647 |
|
{ |
648 |
|
int lfcnt=0, lecnt=0, locnt=0; |
649 |
|
int vcnt=0, ncnt=0, uvcnt=0; |
653 |
|
|
654 |
|
tallyoctree(ms->mcube.cutree, &lecnt, &lfcnt, &locnt); |
655 |
|
for (i = 0; i < ms->npatches; i++) { |
656 |
< |
register MESHPATCH *pp = &ms->patch[i]; |
656 |
> |
MESHPATCH *pp = &ms->patch[i]; |
657 |
|
vcnt += pp->nverts; |
658 |
|
if (pp->norm != NULL) { |
659 |
|
for (j = pp->nverts; j--; ) |
695 |
|
|
696 |
|
|
697 |
|
void |
698 |
< |
freemesh(ms) /* free mesh data */ |
640 |
< |
register MESH *ms; |
698 |
> |
freemesh(MESH *ms) /* free mesh data */ |
699 |
|
{ |
700 |
|
MESH mhead; |
701 |
|
MESH *msp; |
723 |
|
octfree(ms->mcube.cutree); |
724 |
|
lu_done(&ms->lut); |
725 |
|
if (ms->npatches > 0) { |
726 |
< |
register MESHPATCH *pp = ms->patch + ms->npatches; |
726 |
> |
MESHPATCH *pp = ms->patch + ms->npatches; |
727 |
|
while (pp-- > ms->patch) { |
728 |
|
if (pp->j2tri != NULL) |
729 |
< |
free((void *)pp->j2tri); |
729 |
> |
free(pp->j2tri); |
730 |
|
if (pp->j1tri != NULL) |
731 |
< |
free((void *)pp->j1tri); |
731 |
> |
free(pp->j1tri); |
732 |
|
if (pp->tri != NULL) |
733 |
< |
free((void *)pp->tri); |
733 |
> |
free(pp->tri); |
734 |
|
if (pp->uv != NULL) |
735 |
< |
free((void *)pp->uv); |
735 |
> |
free(pp->uv); |
736 |
|
if (pp->norm != NULL) |
737 |
< |
free((void *)pp->norm); |
737 |
> |
free(pp->norm); |
738 |
|
if (pp->xyz != NULL) |
739 |
< |
free((void *)pp->xyz); |
739 |
> |
free(pp->xyz); |
740 |
> |
if (pp->trimat != NULL) |
741 |
> |
free(pp->trimat); |
742 |
|
} |
743 |
< |
free((void *)ms->patch); |
743 |
> |
free(ms->patch); |
744 |
|
} |
745 |
|
if (ms->pseudo != NULL) |
746 |
< |
free((void *)ms->pseudo); |
747 |
< |
free((void *)ms); |
746 |
> |
free(ms->pseudo); |
747 |
> |
free(ms); |
748 |
|
} |
749 |
|
|
750 |
|
|
751 |
|
void |
752 |
< |
freemeshinst(o) /* free mesh instance */ |
693 |
< |
OBJREC *o; |
752 |
> |
freemeshinst(OBJREC *o) /* free mesh instance */ |
753 |
|
{ |
754 |
|
if (o->os == NULL) |
755 |
|
return; |
756 |
|
freemesh((*(MESHINST *)o->os).msh); |
757 |
< |
free((void *)o->os); |
757 |
> |
free(o->os); |
758 |
|
o->os = NULL; |
759 |
|
} |