| 193 |
|
} |
| 194 |
|
|
| 195 |
|
|
| 196 |
< |
addbeam(bp, hb) /* add a beam to our output holodeck */ |
| 197 |
< |
register BEAM *bp; |
| 198 |
< |
register HDBEAMI *hb; |
| 196 |
> |
static BEAMI *beamdir; |
| 197 |
> |
|
| 198 |
> |
static int |
| 199 |
> |
bpcmp(b1p, b2p) /* compare beam positions on disk */ |
| 200 |
> |
int *b1p, *b2p; |
| 201 |
|
{ |
| 202 |
+ |
register long pdif = beamdir[*b1p].fo - beamdir[*b2p].fo; |
| 203 |
+ |
|
| 204 |
+ |
if (pdif > 0L) return(1); |
| 205 |
+ |
if (pdif < 0L) return(-1); |
| 206 |
+ |
return(0); |
| 207 |
+ |
} |
| 208 |
+ |
|
| 209 |
+ |
static int |
| 210 |
+ |
addclump(hp, bq, nb) /* transfer the given clump and free */ |
| 211 |
+ |
HOLO *hp; |
| 212 |
+ |
int *bq, nb; |
| 213 |
+ |
{ |
| 214 |
|
GCOORD gc[2]; |
| 215 |
|
FVECT ro, rd; |
| 216 |
|
double d; |
| 217 |
+ |
int i; |
| 218 |
|
register int k; |
| 219 |
< |
/* get beam coordinates */ |
| 220 |
< |
hdbcoord(gc, hb->h, hb->b); |
| 221 |
< |
/* add each ray to output */ |
| 222 |
< |
for (k = bp->nrm; k--; ) { |
| 223 |
< |
d = hdray(ro, rd, hb->h, gc, hdbray(bp)[k].r); |
| 224 |
< |
if (hb->h->priv == &unobstr) |
| 225 |
< |
VSUM(ro, ro, rd, d); |
| 226 |
< |
else |
| 227 |
< |
d = 0.; |
| 228 |
< |
d = hddepth(hb->h, hdbray(bp)[k].d) - d; |
| 229 |
< |
addray(ro, rd, d, hdbray(bp)[k].v); |
| 219 |
> |
register BEAM *bp; |
| 220 |
> |
/* sort based on file position */ |
| 221 |
> |
beamdir = hp->bi; |
| 222 |
> |
qsort((char *)bq, nb, sizeof(*bq), bpcmp); |
| 223 |
> |
/* transfer each beam */ |
| 224 |
> |
for (i = 0; i < nb; i++) { |
| 225 |
> |
bp = hdgetbeam(hp, bq[i]); |
| 226 |
> |
hdbcoord(gc, hp, bq[i]); |
| 227 |
> |
/* add each ray to output */ |
| 228 |
> |
for (k = bp->nrm; k--; ) { |
| 229 |
> |
d = hdray(ro, rd, hp, gc, hdbray(bp)[k].r); |
| 230 |
> |
if (hp->priv == &unobstr) |
| 231 |
> |
VSUM(ro, ro, rd, d); |
| 232 |
> |
else |
| 233 |
> |
d = 0.; |
| 234 |
> |
d = hddepth(hp, hdbray(bp)[k].d) - d; |
| 235 |
> |
addray(ro, rd, d, hdbray(bp)[k].v); |
| 236 |
> |
} |
| 237 |
> |
hdfreebeam(hp, bq[i]); /* free the beam */ |
| 238 |
|
} |
| 239 |
< |
hdfreebeam(hb->h, hb->b); /* free the beam */ |
| 239 |
> |
hdflush(NULL); /* write & free clump */ |
| 240 |
> |
return(0); |
| 241 |
|
} |
| 242 |
|
|
| 219 |
– |
|
| 243 |
|
addholo(hdf) /* add a holodeck file */ |
| 244 |
|
char *hdf; |
| 245 |
|
{ |
| 249 |
|
fd = hdlist[noutsects]->fd; /* remember the file handle */ |
| 250 |
|
while (hdlist[noutsects] != NULL) { /* load each section */ |
| 251 |
|
/* clump the beams */ |
| 252 |
< |
clumpbeams(hdlist[noutsects], 0, BKBSIZE*1024, addbeam); |
| 252 |
> |
clumpbeams(hdlist[noutsects], 0, BKBSIZE*1024, addclump); |
| 253 |
|
hddone(hdlist[noutsects]); /* free the section */ |
| 254 |
|
} |
| 255 |
|
close(fd); /* close input file */ |
| 387 |
|
addray(ro, rd, (double)zscn[i], cscn[i]); |
| 388 |
|
} |
| 389 |
|
} |
| 390 |
< |
/* write output */ |
| 391 |
< |
hdsync(NULL, 1); |
| 390 |
> |
/* write output and free beams */ |
| 391 |
> |
hdflush(NULL); |
| 392 |
|
/* clean up */ |
| 393 |
|
free((char *)cscn); |
| 394 |
|
free((char *)zscn); |
