| 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 */ |
| 161 |
> |
cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
| 162 |
> |
int op; |
| 163 |
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register struct beamcomp *bl; |
| 164 |
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int n; |
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VIEW *v; |
| 173 |
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pa = (PACKHEAD *)malloc(n*sizeof(PACKHEAD)); |
| 174 |
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if (pa == NULL) |
| 175 |
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error(SYSTEM, "out of memory in cbeamadd"); |
| 172 |
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for (i = 0; i < n; i++) |
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– |
pa[i].nr = npixels(v, hr, vr, |
| 174 |
– |
hdlist[pa[i].hd=bl[i].hd], |
| 175 |
– |
pa[i].bi=bl[i].bi) / 8; |
| 176 |
– |
|
| 177 |
– |
serv_request(DR_ADDSET, n*sizeof(PACKHEAD), (char *)pa); |
| 178 |
– |
free((char *)pa); |
| 179 |
– |
} |
| 180 |
– |
|
| 181 |
– |
|
| 182 |
– |
cbeamdel(bl, n) /* delete unwanted beam requests */ |
| 183 |
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register struct beamcomp *bl; |
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int n; |
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{ |
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register PACKHEAD *pa; |
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– |
register int i; |
| 188 |
– |
|
| 189 |
– |
if (n <= 0) |
| 190 |
– |
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"); |
| 176 |
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for (i = 0; i < n; i++) { |
| 177 |
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pa[i].hd = bl[i].hd; |
| 178 |
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pa[i].bi = bl[i].bi; |
| 179 |
< |
pa[i].nr = 0; /* removes any request */ |
| 179 |
> |
pa[i].nr = v==NULL ? 0 : |
| 180 |
> |
npixels(v, hr, vr, hdlist[bl[i].hd], bl[i].bi); |
| 181 |
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} |
| 182 |
< |
serv_request(DR_DELSET, n*sizeof(PACKHEAD), (char *)pa); |
| 182 |
> |
serv_request(op, n*sizeof(PACKHEAD), (char *)pa); |
| 183 |
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free((char *)pa); |
| 184 |
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} |
| 185 |
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|
| 277 |
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GCOORD gc[2]; |
| 278 |
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int bi, i; |
| 279 |
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/* compute beam index */ |
| 280 |
< |
copystruct(gc, gcp); |
| 281 |
< |
copystruct(gc+1, &bp->gc); |
| 280 |
> |
if (bp->ca.rev) { |
| 281 |
> |
copystruct(gc, &bp->gc); |
| 282 |
> |
copystruct(gc+1, gcp); |
| 283 |
> |
} else { |
| 284 |
> |
copystruct(gc, gcp); |
| 285 |
> |
copystruct(gc+1, &bp->gc); |
| 286 |
> |
} |
| 287 |
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if ((bi = hdbindex(hdlist[voxel[bp->ca.vi].hd], gc)) <= 0) |
| 288 |
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error(CONSISTENCY, "bad grid coordinate in dobeam"); |
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if (bp->ca.add) { /* add it in */ |
| 343 |
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struct cellact *cap; |
| 344 |
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VIEW *vp; |
| 345 |
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{ |
| 346 |
+ |
int orient; |
| 347 |
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FVECT org, dir[4]; |
| 348 |
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/* compute view pyramid */ |
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< |
if (vp->type == VT_PAR) goto viewerr; |
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< |
if (viewray(org, dir[0], vp, 0., 0.) < -FTINY) goto viewerr; |
| 351 |
< |
if (viewray(org, dir[1], vp, 0., 1.) < -FTINY) goto viewerr; |
| 352 |
< |
if (viewray(org, dir[2], vp, 1., 1.) < -FTINY) goto viewerr; |
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< |
if (viewray(org, dir[3], vp, 1., 0.) < -FTINY) goto viewerr; |
| 349 |
> |
orient = viewpyramid(org, dir, hdlist[voxel[cap->vi].hd], vp); |
| 350 |
> |
if (!orient) |
| 351 |
> |
error(INTERNAL, "unusable view in doview"); |
| 352 |
> |
cap->rev = orient < 0; |
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/* visit cells within pyramid */ |
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return(visit_cells(org, dir, hdlist[voxel[cap->vi].hd], docell, cap)); |
| 367 |
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viewerr: |
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error(INTERNAL, "unusable view in doview"); |
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} |
| 356 |
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|
| 357 |
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| 360 |
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VIEW *vold, *vnew; |
| 361 |
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{ |
| 362 |
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int netchange = 0; |
| 363 |
< |
int *ocl, *ncl; |
| 378 |
< |
struct cellact ca; |
| 363 |
> |
struct cellact oca, nca; |
| 364 |
|
int ocnt, ncnt; |
| 365 |
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int c; |
| 366 |
+ |
GCOORD *ogcl, *ngcl; |
| 367 |
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register GCOORD *ogcp, *ngcp; |
| 368 |
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/* get old and new cell lists */ |
| 369 |
< |
ocl = getviewcells(hdlist[voxel[voxi].hd], vold); |
| 370 |
< |
ncl = getviewcells(hdlist[voxel[voxi].hd], vnew); |
| 371 |
< |
if (ocl != NULL) { |
| 372 |
< |
ocnt = *ocl; ogcp = (GCOORD *)(ocl+1); |
| 373 |
< |
} else { |
| 374 |
< |
ocnt = 0; ogcp = NULL; |
| 375 |
< |
} |
| 376 |
< |
if (ncl != NULL) { |
| 377 |
< |
ncnt = *ncl; ngcp = (GCOORD *)(ncl+1); |
| 378 |
< |
} else { |
| 379 |
< |
ncnt = 0; ngcp = NULL; |
| 380 |
< |
} |
| 381 |
< |
ca.vi = voxi; /* add and delete cells */ |
| 382 |
< |
while (ocnt > 0 & ncnt > 0) |
| 383 |
< |
if ((c = cellcmp(ogcp, ngcp)) > 0) { |
| 384 |
< |
ca.add = 1; /* new cell */ |
| 385 |
< |
netchange += docell(ngcp++, &ca); |
| 386 |
< |
ncnt--; |
| 387 |
< |
} else if (c < 0) { |
| 388 |
< |
ca.add = 0; /* obsolete cell */ |
| 389 |
< |
netchange -= docell(ogcp++, &ca); |
| 390 |
< |
ocnt--; |
| 405 |
< |
} else { |
| 406 |
< |
ogcp++; ocnt--; /* unchanged cell */ |
| 407 |
< |
ngcp++; ncnt--; |
| 408 |
< |
} |
| 369 |
> |
ogcp = ogcl = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
| 370 |
> |
ngcp = ngcl = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
| 371 |
> |
/* set up actions */ |
| 372 |
> |
oca.vi = nca.vi = voxi; |
| 373 |
> |
oca.rev = nca.rev = 0; |
| 374 |
> |
oca.add = 0; nca.add = 1; |
| 375 |
> |
if ((oca.rev = ocnt < 0)) |
| 376 |
> |
ocnt = -ocnt; |
| 377 |
> |
if ((nca.rev = ncnt < 0)) |
| 378 |
> |
ncnt = -ncnt; |
| 379 |
> |
if (nca.rev == oca.rev) /* add and delete cells in order */ |
| 380 |
> |
while (ocnt > 0 & ncnt > 0) |
| 381 |
> |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
| 382 |
> |
netchange += docell(ngcp++, &nca); |
| 383 |
> |
ncnt--; |
| 384 |
> |
} else if (c < 0) { /* old cell */ |
| 385 |
> |
netchange -= docell(ogcp++, &oca); |
| 386 |
> |
ocnt--; |
| 387 |
> |
} else { /* same cell */ |
| 388 |
> |
ogcp++; ocnt--; |
| 389 |
> |
ngcp++; ncnt--; |
| 390 |
> |
} |
| 391 |
|
/* take care of list tails */ |
| 392 |
< |
for (ca.add = 1; ncnt > 0; ncnt--) |
| 393 |
< |
netchange += docell(ngcp++, &ca); |
| 394 |
< |
for (ca.add = 0; ocnt > 0; ocnt--) |
| 395 |
< |
netchange -= docell(ogcp++, &ca); |
| 392 |
> |
for ( ; ncnt > 0; ncnt--) |
| 393 |
> |
netchange += docell(ngcp++, &nca); |
| 394 |
> |
for ( ; ocnt > 0; ocnt--) |
| 395 |
> |
netchange -= docell(ogcp++, &oca); |
| 396 |
|
/* clean up */ |
| 397 |
< |
if (ocl != NULL) free((char *)ocl); |
| 398 |
< |
if (ncl != NULL) free((char *)ncl); |
| 397 |
> |
if (ogcl != NULL) free((char *)ogcl); |
| 398 |
> |
if (ngcl != NULL) free((char *)ngcl); |
| 399 |
|
return(netchange); |
| 400 |
|
} |
| 401 |
|
|
| 402 |
|
|
| 403 |
< |
beam_view(vo, vn) /* change beam view */ |
| 422 |
< |
VIEW *vo, *vn; |
| 403 |
> |
beam_sync() /* synchronize beams on server */ |
| 404 |
|
{ |
| 405 |
+ |
cbeamop(DR_NEWSET, cbeam, ncbeams, &odev.v, odev.hres, odev.vres); |
| 406 |
+ |
} |
| 407 |
+ |
|
| 408 |
+ |
|
| 409 |
+ |
beam_view(vn) /* change beam view */ |
| 410 |
+ |
VIEW *vn; |
| 411 |
+ |
{ |
| 412 |
|
struct cellact ca; |
| 413 |
|
VOXL vlnew[8]; |
| 414 |
|
int n, comn; |
| 415 |
|
|
| 416 |
|
if (!vn->type) { /* clear our beam list */ |
| 417 |
|
set_voxels(vlnew, 0); |
| 418 |
< |
cbeamdel(cbeam, ncbeams); |
| 418 |
> |
cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
| 419 |
|
ncbeams = 0; |
| 420 |
+ |
copystruct(&dvw, vn); |
| 421 |
|
return; |
| 422 |
|
} |
| 423 |
|
/* find our new voxels */ |
| 424 |
|
n = get_voxels(vlnew, vn->vp); |
| 425 |
|
/* set the new voxels */ |
| 426 |
|
comn = set_voxels(vlnew, n); |
| 427 |
< |
if (!vo->type) |
| 427 |
> |
if (!dvw.type) |
| 428 |
|
comn = 0; |
| 429 |
|
ca.add = 1; /* update our beam list */ |
| 430 |
|
for (ca.vi = n; ca.vi--; ) |
| 431 |
|
if (comn & 1<<ca.vi) /* change which cells we see */ |
| 432 |
< |
mvview(ca.vi, vo, vn); |
| 432 |
> |
mvview(ca.vi, &dvw, vn); |
| 433 |
|
else /* else add all new cells */ |
| 434 |
|
doview(&ca, vn); |
| 435 |
|
/* inform server of new beams */ |
| 436 |
< |
cbeamadd(cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
| 436 |
> |
cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
| 437 |
|
/* sort list to put orphans at end */ |
| 438 |
|
cbeamsort(0); |
| 439 |
|
/* tell server to delete orphans */ |
| 440 |
< |
cbeamdel(cbeam+ncbeams, xcbeams); |
| 440 |
> |
cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
| 441 |
|
xcbeams = 0; /* truncate our list */ |
| 442 |
+ |
copystruct(&dvw, vn); /* record new view */ |
| 443 |
|
} |
