| 12 |
|
#include "rhdisp.h" |
| 13 |
|
#include "rhdriver.h" |
| 14 |
|
|
| 15 |
+ |
#ifndef MAXDIST |
| 16 |
+ |
#define MAXDIST 42 /* maximum distance outside section */ |
| 17 |
+ |
#endif |
| 18 |
+ |
|
| 19 |
|
extern GCOORD *getviewcells(); |
| 20 |
|
|
| 21 |
+ |
static VIEW dvw; /* current view corresponding to beam list */ |
| 22 |
+ |
|
| 23 |
|
typedef struct { |
| 24 |
|
int hd; /* holodeck section number (-1 if inactive) */ |
| 25 |
|
int i[3]; /* voxel index (may be outside section) */ |
| 162 |
|
} |
| 163 |
|
|
| 164 |
|
|
| 165 |
+ |
cbeamadj(v, hr, vr) /* adjust our beam list */ |
| 166 |
+ |
VIEW *v; |
| 167 |
+ |
int hr, vr; |
| 168 |
+ |
{ |
| 169 |
+ |
register PACKHEAD *pa; |
| 170 |
+ |
register int i; |
| 171 |
+ |
int n; |
| 172 |
+ |
/* first handle additions */ |
| 173 |
+ |
pa = (PACKHEAD *)malloc(xcbeams*sizeof(PACKHEAD)); |
| 174 |
+ |
if (xcbeams && pa == NULL) |
| 175 |
+ |
goto memerr; |
| 176 |
+ |
for (i = xcbeams; i--; ) { |
| 177 |
+ |
pa[i].hd = cbeam[ncbeams+i].hd; |
| 178 |
+ |
pa[i].bi = cbeam[ncbeams+i].bi; |
| 179 |
+ |
pa[i].nr = npixels(v, hr, vr, hdlist[pa[i].hd], pa[i].bi) + 1; |
| 180 |
+ |
} |
| 181 |
+ |
n = xcbeams; /* now sort list for deletions */ |
| 182 |
+ |
cbeamsort(0); |
| 183 |
+ |
pa = (PACKHEAD *)realloc((char *)pa, (n+xcbeams)*sizeof(PACKHEAD)); |
| 184 |
+ |
if (n+xcbeams && pa == NULL) |
| 185 |
+ |
goto memerr; |
| 186 |
+ |
for (i = xcbeams; i--; ) { |
| 187 |
+ |
pa[n+i].hd = cbeam[ncbeams+i].hd; |
| 188 |
+ |
pa[n+i].bi = cbeam[ncbeams+i].bi; |
| 189 |
+ |
pa[n+i].nr = 0; |
| 190 |
+ |
} |
| 191 |
+ |
n += xcbeams; |
| 192 |
+ |
xcbeams = 0; /* delete orphans */ |
| 193 |
+ |
serv_request(DR_ADJSET, n*sizeof(PACKHEAD), (char *)pa); |
| 194 |
+ |
free((char *)pa); |
| 195 |
+ |
return; |
| 196 |
+ |
memerr: |
| 197 |
+ |
error(SYSTEM, "out of memory in cbeamadj"); |
| 198 |
+ |
} |
| 199 |
+ |
|
| 200 |
+ |
|
| 201 |
|
cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
| 202 |
|
int op; |
| 203 |
|
register struct beamcomp *bl; |
| 299 |
|
n++; |
| 300 |
|
} |
| 301 |
|
} |
| 302 |
+ |
/* check for really stupid move */ |
| 303 |
+ |
if (bestd > MAXDIST) { |
| 304 |
+ |
error(COMMAND, "move past outer limits"); |
| 305 |
+ |
return(0); |
| 306 |
+ |
} |
| 307 |
|
/* warn of dangerous moves */ |
| 308 |
|
if (n < lastn && bestd >= lastd) |
| 309 |
|
error(WARNING, "moving outside holodeck section"); |
| 352 |
|
GCOORD *gcp; |
| 353 |
|
register struct cellact *cap; |
| 354 |
|
{ |
| 355 |
+ |
register HOLO *hp = hdlist[voxel[cap->vi].hd]; |
| 356 |
|
FVECT org, dir[4]; |
| 357 |
< |
FVECT gp, cv[4], vc; |
| 357 |
> |
FVECT vgp, cgp, vc; |
| 358 |
> |
FVECT v1, v2; |
| 359 |
|
struct beamact bo; |
| 360 |
+ |
int axmax, j; |
| 361 |
+ |
double d, avmax; |
| 362 |
|
register int i; |
| 363 |
< |
/* compute cell vertices */ |
| 364 |
< |
hdcell(cv, hdlist[voxel[cap->vi].hd], gcp); |
| 365 |
< |
/* compute cell and voxel centers */ |
| 366 |
< |
for (i = 0; i < 3; i++) { |
| 367 |
< |
org[i] = 0.5*(cv[0][i] + cv[2][i]); |
| 368 |
< |
gp[i] = voxel[cap->vi].i[i] + 0.5; |
| 369 |
< |
} |
| 370 |
< |
hdworld(vc, hdlist[voxel[cap->vi].hd], gp); |
| 371 |
< |
/* compute voxel pyramid using vector trick */ |
| 372 |
< |
for (i = 0; i < 3; i++) { |
| 373 |
< |
dir[0][i] = vc[i] - cv[0][i]; /* to 3 */ |
| 374 |
< |
dir[2][i] = vc[i] - cv[3][i]; /* to 0 */ |
| 375 |
< |
if (gcp->w & 1) { /* watch vertex order! */ |
| 376 |
< |
dir[1][i] = vc[i] - cv[2][i]; /* to 1 */ |
| 377 |
< |
dir[3][i] = vc[i] - cv[1][i]; /* to 2 */ |
| 378 |
< |
} else { |
| 379 |
< |
dir[1][i] = vc[i] - cv[1][i]; /* to 2 */ |
| 380 |
< |
dir[3][i] = vc[i] - cv[2][i]; /* to 1 */ |
| 363 |
> |
/* compute cell center */ |
| 364 |
> |
cgp[gcp->w>>1] = gcp->w&1 ? hp->grid[gcp->w>>1] : 0 ; |
| 365 |
> |
cgp[((gcp->w>>1)+1)%3] = gcp->i[0] + .5; |
| 366 |
> |
cgp[((gcp->w>>1)+2)%3] = gcp->i[1] + .5; |
| 367 |
> |
hdworld(org, hp, cgp); |
| 368 |
> |
/* compute direction to voxel center */ |
| 369 |
> |
for (i = 3; i--; ) |
| 370 |
> |
vgp[i] = voxel[cap->vi].i[i] + .5; |
| 371 |
> |
hdworld(vc, hp, vgp); |
| 372 |
> |
for (i = 3; i--; ) |
| 373 |
> |
vc[i] -= org[i]; |
| 374 |
> |
/* compute maximum area axis */ |
| 375 |
> |
axmax = -1; avmax = 0; |
| 376 |
> |
for (i = 3; i--; ) { |
| 377 |
> |
d = vgp[i] - cgp[i]; |
| 378 |
> |
if (d < 0.) d = -d; |
| 379 |
> |
if (d > avmax) { |
| 380 |
> |
avmax = d; |
| 381 |
> |
axmax = i; |
| 382 |
|
} |
| 383 |
|
} |
| 384 |
+ |
#ifdef DEBUG |
| 385 |
+ |
if (axmax < 0.) |
| 386 |
+ |
error(CONSISTENCY, "botched axis computation in docell"); |
| 387 |
+ |
#endif |
| 388 |
+ |
/* compute offset vectors */ |
| 389 |
+ |
d = 0.5/hp->grid[j=(axmax+1)%3]; |
| 390 |
+ |
for (i = 3; i--; ) |
| 391 |
+ |
v1[i] = hp->xv[j][i] * d; |
| 392 |
+ |
d = 0.5/hp->grid[j=(axmax+2)%3]; |
| 393 |
+ |
if (DOT(hp->wn[axmax], vc) < 0.) |
| 394 |
+ |
d = -d; /* reverse vertex ordering */ |
| 395 |
+ |
for (i = 3; i--; ) |
| 396 |
+ |
v2[i] = hp->xv[j][i] * d; |
| 397 |
+ |
/* compute voxel pyramid */ |
| 398 |
+ |
for (i = 3; i--; ) { |
| 399 |
+ |
dir[0][i] = vc[i] - v1[i] - v2[i]; |
| 400 |
+ |
dir[1][i] = vc[i] + v1[i] - v2[i]; |
| 401 |
+ |
dir[2][i] = vc[i] + v1[i] + v2[i]; |
| 402 |
+ |
dir[3][i] = vc[i] - v1[i] + v2[i]; |
| 403 |
+ |
} |
| 404 |
|
/* visit beams for opposite cells */ |
| 405 |
|
copystruct(&bo.ca, cap); |
| 406 |
|
copystruct(&bo.gc, gcp); |
| 407 |
< |
return(visit_cells(org, dir, hdlist[voxel[cap->vi].hd], dobeam, &bo)); |
| 407 |
> |
return(visit_cells(org, dir, hp, dobeam, &bo)); |
| 408 |
|
} |
| 409 |
|
|
| 410 |
|
|
| 433 |
|
struct cellact oca, nca; |
| 434 |
|
int ocnt, ncnt; |
| 435 |
|
int c; |
| 436 |
+ |
GCOORD *ogcl, *ngcl; |
| 437 |
|
register GCOORD *ogcp, *ngcp; |
| 438 |
|
/* get old and new cell lists */ |
| 439 |
< |
ogcp = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
| 440 |
< |
ngcp = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
| 439 |
> |
ogcp = ogcl = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
| 440 |
> |
ngcp = ngcl = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
| 441 |
|
/* set up actions */ |
| 442 |
|
oca.vi = nca.vi = voxi; |
| 370 |
– |
oca.rev = nca.rev = 0; |
| 443 |
|
oca.add = 0; nca.add = 1; |
| 444 |
|
if ((oca.rev = ocnt < 0)) |
| 445 |
|
ocnt = -ocnt; |
| 446 |
|
if ((nca.rev = ncnt < 0)) |
| 447 |
|
ncnt = -ncnt; |
| 448 |
< |
/* add and delete cells in order */ |
| 449 |
< |
while (ocnt > 0 & ncnt > 0) |
| 450 |
< |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
| 451 |
< |
netchange += docell(ngcp++, &nca); |
| 452 |
< |
ncnt--; |
| 453 |
< |
} else if (c < 0) { /* obsolete cell */ |
| 454 |
< |
netchange -= docell(ogcp++, &oca); |
| 455 |
< |
ocnt--; |
| 456 |
< |
} else { /* same cell? */ |
| 457 |
< |
if (oca.rev != nca.rev) /* not */ |
| 458 |
< |
netchange += docell(ngcp, &nca) - |
| 459 |
< |
docell(ogcp, &oca); |
| 388 |
< |
ogcp++; ocnt--; |
| 389 |
< |
ngcp++; ncnt--; |
| 390 |
< |
} |
| 448 |
> |
if (nca.rev == oca.rev) /* add and delete cells in order */ |
| 449 |
> |
while (ocnt > 0 & ncnt > 0) |
| 450 |
> |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
| 451 |
> |
netchange += docell(ngcp++, &nca); |
| 452 |
> |
ncnt--; |
| 453 |
> |
} else if (c < 0) { /* old cell */ |
| 454 |
> |
netchange -= docell(ogcp++, &oca); |
| 455 |
> |
ocnt--; |
| 456 |
> |
} else { /* same cell */ |
| 457 |
> |
ogcp++; ocnt--; |
| 458 |
> |
ngcp++; ncnt--; |
| 459 |
> |
} |
| 460 |
|
/* take care of list tails */ |
| 461 |
|
for ( ; ncnt > 0; ncnt--) |
| 462 |
|
netchange += docell(ngcp++, &nca); |
| 463 |
|
for ( ; ocnt > 0; ocnt--) |
| 464 |
|
netchange -= docell(ogcp++, &oca); |
| 465 |
|
/* clean up */ |
| 466 |
< |
if (ogcp != NULL) free((char *)ogcp); |
| 467 |
< |
if (ngcp != NULL) free((char *)ngcp); |
| 466 |
> |
if (ogcl != NULL) free((char *)ogcl); |
| 467 |
> |
if (ngcl != NULL) free((char *)ngcl); |
| 468 |
|
return(netchange); |
| 469 |
|
} |
| 470 |
|
|
| 471 |
|
|
| 472 |
+ |
int |
| 473 |
|
beam_sync() /* synchronize beams on server */ |
| 474 |
|
{ |
| 475 |
|
cbeamop(DR_NEWSET, cbeam, ncbeams, &odev.v, odev.hres, odev.vres); |
| 476 |
+ |
return(ncbeams); |
| 477 |
|
} |
| 478 |
|
|
| 479 |
|
|
| 480 |
< |
beam_view(vo, vn) /* change beam view */ |
| 481 |
< |
VIEW *vo, *vn; |
| 480 |
> |
beam_view(vn) /* change beam view (if advisable) */ |
| 481 |
> |
VIEW *vn; |
| 482 |
|
{ |
| 483 |
|
struct cellact ca; |
| 484 |
|
VOXL vlnew[8]; |
| 485 |
|
int n, comn; |
| 486 |
|
|
| 487 |
< |
if (!vn->type) { /* clear our beam list */ |
| 487 |
> |
if (vn == NULL || !vn->type) { /* clear our beam list */ |
| 488 |
|
set_voxels(vlnew, 0); |
| 489 |
|
cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
| 490 |
|
ncbeams = 0; |
| 491 |
< |
return; |
| 491 |
> |
dvw.type = 0; |
| 492 |
> |
return(1); |
| 493 |
|
} |
| 494 |
|
/* find our new voxels */ |
| 495 |
|
n = get_voxels(vlnew, vn->vp); |
| 496 |
+ |
if (dvw.type && !n) { |
| 497 |
+ |
copystruct(vn, &dvw); /* cancel move */ |
| 498 |
+ |
return(0); |
| 499 |
+ |
} |
| 500 |
|
/* set the new voxels */ |
| 501 |
|
comn = set_voxels(vlnew, n); |
| 502 |
< |
if (!vo->type) |
| 502 |
> |
if (!dvw.type) |
| 503 |
|
comn = 0; |
| 504 |
|
ca.add = 1; /* update our beam list */ |
| 505 |
|
for (ca.vi = n; ca.vi--; ) |
| 506 |
|
if (comn & 1<<ca.vi) /* change which cells we see */ |
| 507 |
< |
mvview(ca.vi, vo, vn); |
| 507 |
> |
mvview(ca.vi, &dvw, vn); |
| 508 |
|
else /* else add all new cells */ |
| 509 |
|
doview(&ca, vn); |
| 510 |
+ |
#if 1 |
| 511 |
+ |
cbeamadj(vn, odev.hres, odev.vres); |
| 512 |
+ |
#else |
| 513 |
|
/* inform server of new beams */ |
| 514 |
|
cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
| 515 |
|
/* sort list to put orphans at end */ |
| 517 |
|
/* tell server to delete orphans */ |
| 518 |
|
cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
| 519 |
|
xcbeams = 0; /* truncate our list */ |
| 520 |
+ |
#endif |
| 521 |
+ |
copystruct(&dvw, vn); /* record new view */ |
| 522 |
+ |
return(1); |
| 523 |
|
} |
