12 |
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#include "rhdisp.h" |
13 |
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#include "rhdriver.h" |
14 |
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|
15 |
< |
extern int *getviewcells(); |
15 |
> |
extern GCOORD *getviewcells(); |
16 |
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|
17 |
+ |
static VIEW dvw; /* current view corresponding to beam list */ |
18 |
+ |
|
19 |
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typedef struct { |
20 |
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int hd; /* holodeck section number (-1 if inactive) */ |
21 |
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int i[3]; /* voxel index (may be outside section) */ |
41 |
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struct cellact { |
42 |
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short vi; /* voxel index */ |
43 |
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short add; /* zero means delete */ |
44 |
+ |
short rev; /* reverse ray direction? */ |
45 |
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}; /* action for cell */ |
46 |
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|
47 |
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struct beamact { |
158 |
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} |
159 |
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|
160 |
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|
161 |
< |
cbeamadd(bl, n, v, hr, vr) /* add beams to server list */ |
159 |
< |
register struct beamcomp *bl; |
160 |
< |
int n; |
161 |
> |
cbeamadj(v, hr, vr) /* adjust our beam list */ |
162 |
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VIEW *v; |
163 |
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int hr, vr; |
164 |
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{ |
165 |
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register PACKHEAD *pa; |
166 |
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register int i; |
167 |
< |
|
168 |
< |
if (n <= 0) |
169 |
< |
return; |
170 |
< |
pa = (PACKHEAD *)malloc(n*sizeof(PACKHEAD)); |
171 |
< |
if (pa == NULL) |
172 |
< |
error(SYSTEM, "out of memory in cbeamadd"); |
173 |
< |
for (i = 0; i < n; i++) |
174 |
< |
pa[i].nr = npixels(v, hr, vr, |
175 |
< |
hdlist[pa[i].hd=bl[i].hd], |
176 |
< |
pa[i].bi=bl[i].bi) / 8; |
177 |
< |
|
178 |
< |
serv_request(DR_ADDSET, n*sizeof(PACKHEAD), (char *)pa); |
167 |
> |
int n; |
168 |
> |
/* first handle additions */ |
169 |
> |
pa = (PACKHEAD *)malloc(xcbeams*sizeof(PACKHEAD)); |
170 |
> |
if (xcbeams && pa == NULL) |
171 |
> |
goto memerr; |
172 |
> |
for (i = xcbeams; i--; ) { |
173 |
> |
pa[i].hd = cbeam[ncbeams+i].hd; |
174 |
> |
pa[i].bi = cbeam[ncbeams+i].bi; |
175 |
> |
pa[i].nr = npixels(v, hr, vr, hdlist[pa[i].hd], pa[i].bi); |
176 |
> |
} |
177 |
> |
n = xcbeams; /* now sort list for deletions */ |
178 |
> |
cbeamsort(0); |
179 |
> |
pa = (PACKHEAD *)realloc((char *)pa, (n+xcbeams)*sizeof(PACKHEAD)); |
180 |
> |
if (n+xcbeams && pa == NULL) |
181 |
> |
goto memerr; |
182 |
> |
for (i = xcbeams; i--; ) { |
183 |
> |
pa[n+i].hd = cbeam[ncbeams+i].hd; |
184 |
> |
pa[n+i].bi = cbeam[ncbeams+i].bi; |
185 |
> |
pa[n+i].nr = 0; |
186 |
> |
} |
187 |
> |
n += xcbeams; |
188 |
> |
xcbeams = 0; /* delete orphans */ |
189 |
> |
serv_request(DR_ADJSET, n*sizeof(PACKHEAD), (char *)pa); |
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free((char *)pa); |
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+ |
return; |
192 |
+ |
memerr: |
193 |
+ |
error(SYSTEM, "out of memory in cbeamadj"); |
194 |
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} |
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|
196 |
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cbeamdel(bl, n) /* delete unwanted beam requests */ |
197 |
> |
cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
198 |
> |
int op; |
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register struct beamcomp *bl; |
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int n; |
201 |
+ |
VIEW *v; |
202 |
+ |
int hr, vr; |
203 |
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{ |
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register PACKHEAD *pa; |
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register int i; |
208 |
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return; |
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pa = (PACKHEAD *)malloc(n*sizeof(PACKHEAD)); |
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if (pa == NULL) |
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< |
error(SYSTEM, "out of memory in cbeamdel"); |
211 |
> |
error(SYSTEM, "out of memory in cbeamadd"); |
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for (i = 0; i < n; i++) { |
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pa[i].hd = bl[i].hd; |
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pa[i].bi = bl[i].bi; |
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pa[i].nr = 0; /* removes any request */ |
215 |
> |
pa[i].nr = v==NULL ? 0 : |
216 |
> |
npixels(v, hr, vr, hdlist[bl[i].hd], bl[i].bi); |
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} |
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< |
serv_request(DR_DELSET, n*sizeof(PACKHEAD), (char *)pa); |
218 |
> |
serv_request(op, n*sizeof(PACKHEAD), (char *)pa); |
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free((char *)pa); |
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} |
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GCOORD gc[2]; |
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int bi, i; |
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/* compute beam index */ |
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< |
copystruct(gc, gcp); |
317 |
< |
copystruct(gc+1, &bp->gc); |
316 |
> |
if (bp->ca.rev) { |
317 |
> |
copystruct(gc, &bp->gc); |
318 |
> |
copystruct(gc+1, gcp); |
319 |
> |
} else { |
320 |
> |
copystruct(gc, gcp); |
321 |
> |
copystruct(gc+1, &bp->gc); |
322 |
> |
} |
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if ((bi = hdbindex(hdlist[voxel[bp->ca.vi].hd], gc)) <= 0) |
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error(CONSISTENCY, "bad grid coordinate in dobeam"); |
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if (bp->ca.add) { /* add it in */ |
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struct cellact *cap; |
380 |
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VIEW *vp; |
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{ |
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+ |
int orient; |
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FVECT org, dir[4]; |
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/* compute view pyramid */ |
385 |
< |
if (vp->type == VT_PAR) goto viewerr; |
386 |
< |
if (viewray(org, dir[0], vp, 0., 0.) < -FTINY) goto viewerr; |
387 |
< |
if (viewray(org, dir[1], vp, 0., 1.) < -FTINY) goto viewerr; |
388 |
< |
if (viewray(org, dir[2], vp, 1., 1.) < -FTINY) goto viewerr; |
364 |
< |
if (viewray(org, dir[3], vp, 1., 0.) < -FTINY) goto viewerr; |
385 |
> |
orient = viewpyramid(org, dir, hdlist[voxel[cap->vi].hd], vp); |
386 |
> |
if (!orient) |
387 |
> |
error(INTERNAL, "unusable view in doview"); |
388 |
> |
cap->rev = orient < 0; |
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/* visit cells within pyramid */ |
390 |
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return(visit_cells(org, dir, hdlist[voxel[cap->vi].hd], docell, cap)); |
367 |
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viewerr: |
368 |
– |
error(INTERNAL, "unusable view in doview"); |
391 |
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} |
392 |
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|
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|
396 |
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VIEW *vold, *vnew; |
397 |
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{ |
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int netchange = 0; |
399 |
< |
int *ocl, *ncl; |
378 |
< |
struct cellact ca; |
399 |
> |
struct cellact oca, nca; |
400 |
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int ocnt, ncnt; |
401 |
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int c; |
402 |
+ |
GCOORD *ogcl, *ngcl; |
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register GCOORD *ogcp, *ngcp; |
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/* get old and new cell lists */ |
405 |
< |
ocl = getviewcells(hdlist[voxel[voxi].hd], vold); |
406 |
< |
ncl = getviewcells(hdlist[voxel[voxi].hd], vnew); |
407 |
< |
if (ocl != NULL) { |
408 |
< |
ocnt = *ocl; ogcp = (GCOORD *)(ocl+1); |
409 |
< |
} else { |
410 |
< |
ocnt = 0; ogcp = NULL; |
411 |
< |
} |
412 |
< |
if (ncl != NULL) { |
413 |
< |
ncnt = *ncl; ngcp = (GCOORD *)(ncl+1); |
414 |
< |
} else { |
415 |
< |
ncnt = 0; ngcp = NULL; |
416 |
< |
} |
417 |
< |
ca.vi = voxi; /* add and delete cells */ |
418 |
< |
while (ocnt > 0 & ncnt > 0) |
419 |
< |
if ((c = cellcmp(ogcp, ngcp)) > 0) { |
420 |
< |
ca.add = 1; /* new cell */ |
421 |
< |
netchange += docell(ngcp++, &ca); |
422 |
< |
ncnt--; |
423 |
< |
} else if (c < 0) { |
424 |
< |
ca.add = 0; /* obsolete cell */ |
425 |
< |
netchange -= docell(ogcp++, &ca); |
426 |
< |
ocnt--; |
405 |
< |
} else { |
406 |
< |
ogcp++; ocnt--; /* unchanged cell */ |
407 |
< |
ngcp++; ncnt--; |
408 |
< |
} |
405 |
> |
ogcp = ogcl = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
406 |
> |
ngcp = ngcl = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
407 |
> |
/* set up actions */ |
408 |
> |
oca.vi = nca.vi = voxi; |
409 |
> |
oca.rev = nca.rev = 0; |
410 |
> |
oca.add = 0; nca.add = 1; |
411 |
> |
if ((oca.rev = ocnt < 0)) |
412 |
> |
ocnt = -ocnt; |
413 |
> |
if ((nca.rev = ncnt < 0)) |
414 |
> |
ncnt = -ncnt; |
415 |
> |
if (nca.rev == oca.rev) /* add and delete cells in order */ |
416 |
> |
while (ocnt > 0 & ncnt > 0) |
417 |
> |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
418 |
> |
netchange += docell(ngcp++, &nca); |
419 |
> |
ncnt--; |
420 |
> |
} else if (c < 0) { /* old cell */ |
421 |
> |
netchange -= docell(ogcp++, &oca); |
422 |
> |
ocnt--; |
423 |
> |
} else { /* same cell */ |
424 |
> |
ogcp++; ocnt--; |
425 |
> |
ngcp++; ncnt--; |
426 |
> |
} |
427 |
|
/* take care of list tails */ |
428 |
< |
for (ca.add = 1; ncnt > 0; ncnt--) |
429 |
< |
netchange += docell(ngcp++, &ca); |
430 |
< |
for (ca.add = 0; ocnt > 0; ocnt--) |
431 |
< |
netchange -= docell(ogcp++, &ca); |
428 |
> |
for ( ; ncnt > 0; ncnt--) |
429 |
> |
netchange += docell(ngcp++, &nca); |
430 |
> |
for ( ; ocnt > 0; ocnt--) |
431 |
> |
netchange -= docell(ogcp++, &oca); |
432 |
|
/* clean up */ |
433 |
< |
if (ocl != NULL) free((char *)ocl); |
434 |
< |
if (ncl != NULL) free((char *)ncl); |
433 |
> |
if (ogcl != NULL) free((char *)ogcl); |
434 |
> |
if (ngcl != NULL) free((char *)ngcl); |
435 |
|
return(netchange); |
436 |
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} |
437 |
|
|
438 |
|
|
439 |
< |
beam_view(vo, vn) /* change beam view */ |
422 |
< |
VIEW *vo, *vn; |
439 |
> |
beam_sync() /* synchronize beams on server */ |
440 |
|
{ |
441 |
+ |
cbeamop(DR_NEWSET, cbeam, ncbeams, &odev.v, odev.hres, odev.vres); |
442 |
+ |
} |
443 |
+ |
|
444 |
+ |
|
445 |
+ |
beam_view(vn) /* change beam view */ |
446 |
+ |
VIEW *vn; |
447 |
+ |
{ |
448 |
|
struct cellact ca; |
449 |
|
VOXL vlnew[8]; |
450 |
|
int n, comn; |
451 |
|
|
452 |
|
if (!vn->type) { /* clear our beam list */ |
453 |
|
set_voxels(vlnew, 0); |
454 |
< |
cbeamdel(cbeam, ncbeams); |
454 |
> |
cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
455 |
|
ncbeams = 0; |
456 |
+ |
copystruct(&dvw, vn); |
457 |
|
return; |
458 |
|
} |
459 |
|
/* find our new voxels */ |
460 |
|
n = get_voxels(vlnew, vn->vp); |
461 |
|
/* set the new voxels */ |
462 |
|
comn = set_voxels(vlnew, n); |
463 |
< |
if (!vo->type) |
463 |
> |
if (!dvw.type) |
464 |
|
comn = 0; |
465 |
|
ca.add = 1; /* update our beam list */ |
466 |
|
for (ca.vi = n; ca.vi--; ) |
467 |
|
if (comn & 1<<ca.vi) /* change which cells we see */ |
468 |
< |
mvview(ca.vi, vo, vn); |
468 |
> |
mvview(ca.vi, &dvw, vn); |
469 |
|
else /* else add all new cells */ |
470 |
|
doview(&ca, vn); |
471 |
+ |
#if 1 |
472 |
+ |
cbeamadj(vn, odev.hres, odev.vres); |
473 |
+ |
#else |
474 |
|
/* inform server of new beams */ |
475 |
< |
cbeamadd(cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
475 |
> |
cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
476 |
|
/* sort list to put orphans at end */ |
477 |
|
cbeamsort(0); |
478 |
|
/* tell server to delete orphans */ |
479 |
< |
cbeamdel(cbeam+ncbeams, xcbeams); |
479 |
> |
cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
480 |
|
xcbeams = 0; /* truncate our list */ |
481 |
+ |
#endif |
482 |
+ |
copystruct(&dvw, vn); /* record new view */ |
483 |
|
} |