33 |
|
|
34 |
|
#define hasmult (unit_mult < .999 || unit_mult > 1.001) |
35 |
|
|
36 |
+ |
/* |
37 |
+ |
* Stuff for tracking and reusing vertices: |
38 |
+ |
*/ |
39 |
|
|
40 |
+ |
char VKFMT[] = "%+1.9e %+1.9e %+1.9e"; |
41 |
+ |
#define VKLEN 64 |
42 |
+ |
|
43 |
+ |
#define mkvkey(k,v) sprintf(k, VKFMT, (v)[0], (v)[1], (v)[2]) |
44 |
+ |
|
45 |
+ |
#define NVERTS 256 |
46 |
+ |
|
47 |
+ |
long clock; /* incremented at each vertex request */ |
48 |
+ |
|
49 |
+ |
struct vert { |
50 |
+ |
long lused; /* when last used (0 if unassigned) */ |
51 |
+ |
FVECT p; /* track point position only */ |
52 |
+ |
} vert[NVERTS]; /* our vertex cache */ |
53 |
+ |
|
54 |
+ |
LUTAB vertab = LU_SINIT(free,NULL); /* our vertex lookup table */ |
55 |
+ |
|
56 |
+ |
|
57 |
|
main(argc, argv) |
58 |
|
int argc; |
59 |
|
char **argv; |
80 |
|
goto unkopt; |
81 |
|
} |
82 |
|
break; |
83 |
+ |
default: |
84 |
+ |
goto unkopt; |
85 |
|
} |
86 |
|
init(); |
87 |
|
if (i >= argc) |
266 |
|
|
267 |
|
init() /* initialize dispatch table and output */ |
268 |
|
{ |
269 |
+ |
lu_init(&vertab, NVERTS); |
270 |
|
lu_init(&rdispatch, 22); |
271 |
|
add2dispatch("polygon", o_face); |
272 |
|
add2dispatch("cone", o_cone); |
304 |
|
puts("# End of data converted from Radiance scene input"); |
305 |
|
lu_done(&rdispatch); |
306 |
|
lu_done(&rmats); |
307 |
+ |
lu_done(&vertab); |
308 |
|
} |
309 |
|
|
310 |
|
|
311 |
+ |
clrverts() /* clear vertex table */ |
312 |
+ |
{ |
313 |
+ |
register int i; |
314 |
+ |
|
315 |
+ |
lu_done(&vertab); |
316 |
+ |
for (i = 0; i < NVERTS; i++) |
317 |
+ |
vert[i].lused = 0; |
318 |
+ |
lu_init(&vertab, NVERTS); |
319 |
+ |
} |
320 |
+ |
|
321 |
+ |
|
322 |
|
add2dispatch(name, func) /* add function to dispatch table */ |
323 |
|
char *name; |
324 |
|
int (*func)(); |
336 |
|
} |
337 |
|
|
338 |
|
|
304 |
– |
/* |
305 |
– |
* Stuff for tracking and reusing vertices: |
306 |
– |
*/ |
307 |
– |
|
308 |
– |
char VKFMT[] = "%+1.9e %+1.9e %+1.9e"; |
309 |
– |
#define VKLEN 64 |
310 |
– |
|
311 |
– |
#define mkvkey(k,v) sprintf(k, VKFMT, (v)[0], (v)[1], (v)[2]) |
312 |
– |
|
313 |
– |
#define NVERTS 256 |
314 |
– |
|
315 |
– |
long clock; /* incremented at each vertex request */ |
316 |
– |
|
317 |
– |
struct vert { |
318 |
– |
long lused; /* when last used (0 if unassigned) */ |
319 |
– |
FVECT p; /* track point position only */ |
320 |
– |
} vert[NVERTS]; |
321 |
– |
|
322 |
– |
LUTAB vertab = LU_SINIT(free,NULL); /* our vertex lookup table */ |
323 |
– |
|
324 |
– |
|
339 |
|
char * |
340 |
|
getvertid(vname, vp) /* get/set vertex ID for this point */ |
341 |
|
char *vname; |
345 |
|
register LUENT *lp; |
346 |
|
register int i, vndx; |
347 |
|
|
334 |
– |
if (!vertab.tsiz && !lu_init(&vertab, NVERTS)) |
335 |
– |
goto memerr; |
348 |
|
clock++; /* increment counter */ |
349 |
|
mkvkey(vkey, vp); |
350 |
|
if ((lp = lu_find(&vertab, vkey)) == NULL) |
365 |
|
mkvkey(vkey, vert[vndx].p); |
366 |
|
lu_delete(&vertab, vkey); |
367 |
|
} |
368 |
< |
vert[vndx].lused = clock; /* assign it */ |
357 |
< |
VCOPY(vert[vndx].p, vp); |
368 |
> |
VCOPY(vert[vndx].p, vp); /* assign it */ |
369 |
|
printf("v v%d =\n\tp %.15g %.15g %.15g\n", /* print it */ |
370 |
|
vndx, vp[0], vp[1], vp[2]); |
371 |
|
lp->data = (char *)&vert[vndx]; /* set it */ |
372 |
|
} else |
373 |
|
vndx = (struct vert *)lp->data - vert; |
374 |
+ |
vert[vndx].lused = clock; /* record this use */ |
375 |
|
sprintf(vname, "v%d", vndx); |
376 |
|
return(vname); |
377 |
|
memerr: |
524 |
|
fputs(fa->sarg[i], stdout); |
525 |
|
} |
526 |
|
putchar('\n'); |
527 |
+ |
clrverts(); /* vertex id's no longer reliable */ |
528 |
|
return(0); |
529 |
|
} |
530 |
|
|