12 |
|
#include "rhdisp.h" |
13 |
|
#include "rhdriver.h" |
14 |
|
|
15 |
< |
#ifndef MAXDIST |
16 |
< |
#define MAXDIST 42 /* maximum distance outside section */ |
15 |
> |
#ifndef MEYERNG |
16 |
> |
#define MEYERNG 0.2 /* target mean eye range (rel. to grid) */ |
17 |
|
#endif |
18 |
|
|
19 |
– |
#define MAXVOXEL 16 /* maximum number of active voxels */ |
20 |
– |
|
21 |
– |
extern GCOORD *getviewcells(); |
22 |
– |
|
23 |
– |
static VIEW dvw; /* current view corresponding to beam list */ |
24 |
– |
|
25 |
– |
typedef struct { |
26 |
– |
int hd; /* holodeck section number (-1 if inactive) */ |
27 |
– |
int i[3]; /* voxel index (may be outside section) */ |
28 |
– |
} VOXL; /* a voxel */ |
29 |
– |
|
30 |
– |
static VOXL voxel[MAXVOXEL] = {{-1}}; /* current voxel list */ |
31 |
– |
|
19 |
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#define CBEAMBLK 1024 /* cbeam allocation block size */ |
20 |
|
|
21 |
< |
static struct beamcomp { |
35 |
< |
unsigned short wants; /* flags telling which voxels want us */ |
36 |
< |
unsigned short hd; /* holodeck section number */ |
37 |
< |
int bi; /* beam index */ |
38 |
< |
} *cbeam = NULL; /* current beam list */ |
39 |
< |
|
21 |
> |
static PACKHEAD *cbeam = NULL; /* current beam list */ |
22 |
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static int ncbeams = 0; /* number of sorted beams in cbeam */ |
23 |
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static int xcbeams = 0; /* extra (unregistered) beams past ncbeams */ |
24 |
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static int maxcbeam = 0; /* size of cbeam array */ |
25 |
|
|
26 |
< |
struct cellact { |
45 |
< |
short vi; /* voxel index */ |
46 |
< |
short add; /* zero means delete */ |
47 |
< |
short rev; /* reverse ray direction? */ |
48 |
< |
}; /* action for cell */ |
26 |
> |
VIEWPOINT cureye; /* current eye position */ |
27 |
|
|
50 |
– |
struct beamact { |
51 |
– |
struct cellact ca; /* cell action */ |
52 |
– |
GCOORD gc; /* grid coordinate */ |
53 |
– |
}; /* beam origin and action */ |
28 |
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|
55 |
– |
|
29 |
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int |
30 |
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newcbeam() /* allocate new entry at end of cbeam array */ |
31 |
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{ |
34 |
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if ((i = ncbeams + xcbeams++) >= maxcbeam) { /* grow array */ |
35 |
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maxcbeam += CBEAMBLK; |
36 |
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if (cbeam == NULL) |
37 |
< |
cbeam = (struct beamcomp *)malloc( |
38 |
< |
maxcbeam*sizeof(struct beamcomp) ); |
37 |
> |
cbeam = (PACKHEAD *)malloc( |
38 |
> |
maxcbeam*sizeof(PACKHEAD) ); |
39 |
|
else |
40 |
< |
cbeam = (struct beamcomp *)realloc( (char *)cbeam, |
41 |
< |
maxcbeam*sizeof(struct beamcomp) ); |
40 |
> |
cbeam = (PACKHEAD *)realloc( (char *)cbeam, |
41 |
> |
maxcbeam*sizeof(PACKHEAD) ); |
42 |
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if (cbeam == NULL) |
43 |
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error(SYSTEM, "out of memory in newcbeam"); |
44 |
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} |
48 |
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|
49 |
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int |
50 |
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cbeamcmp(cb1, cb2) /* compare two cbeam entries for sort: keep orphans */ |
51 |
< |
register struct beamcomp *cb1, *cb2; |
51 |
> |
register PACKHEAD *cb1, *cb2; |
52 |
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{ |
53 |
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register int c; |
54 |
|
|
60 |
|
|
61 |
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int |
62 |
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cbeamcmp2(cb1, cb2) /* compare two cbeam entries for sort: no orphans */ |
63 |
< |
register struct beamcomp *cb1, *cb2; |
63 |
> |
register PACKHEAD *cb1, *cb2; |
64 |
|
{ |
65 |
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register int c; |
66 |
|
|
67 |
< |
if (!cb1->wants) /* put orphans at the end, unsorted */ |
68 |
< |
return(cb2->wants); |
69 |
< |
if (!cb2->wants) |
67 |
> |
if (!cb1->nr) /* put orphans at the end, unsorted */ |
68 |
> |
return(cb2->nr); |
69 |
> |
if (!cb2->nr) |
70 |
|
return(-1); |
71 |
|
if ((c = cb1->bi - cb2->bi)) /* sort on beam index first */ |
72 |
|
return(c); |
78 |
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findcbeam(hd, bi) /* find the specified beam in our sorted list */ |
79 |
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int hd, bi; |
80 |
|
{ |
81 |
< |
struct beamcomp cb; |
82 |
< |
register struct beamcomp *p; |
81 |
> |
PACKHEAD cb; |
82 |
> |
register PACKHEAD *p; |
83 |
|
|
84 |
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if (ncbeams <= 0) |
85 |
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return(-1); |
86 |
< |
cb.wants = 0; cb.hd = hd; cb.bi = bi; |
87 |
< |
p = (struct beamcomp *)bsearch((char *)&cb, (char *)cbeam, ncbeams, |
88 |
< |
sizeof(struct beamcomp), cbeamcmp); |
86 |
> |
cb.hd = hd; cb.bi = bi; cb.nr = cb.nc = 0; |
87 |
> |
p = (PACKHEAD *)bsearch((char *)&cb, (char *)cbeam, ncbeams, |
88 |
> |
sizeof(PACKHEAD), cbeamcmp); |
89 |
|
if (p == NULL) |
90 |
|
return(-1); |
91 |
|
return(p - cbeam); |
111 |
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if (bi < 1 | bi > nbeams(hdlist[hd])) |
112 |
|
error(INTERNAL, "illegal beam index in getcbeam"); |
113 |
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n = newcbeam(); /* allocate and assign */ |
114 |
< |
cbeam[n].wants = 0; cbeam[n].hd = hd; cbeam[n].bi = bi; |
114 |
> |
cbeam[n].hd = hd; cbeam[n].bi = bi; cbeam[n].nr = cbeam[n].nc = 0; |
115 |
|
return(n); |
116 |
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} |
117 |
|
|
124 |
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if (!(ncbeams += xcbeams)) |
125 |
|
return; |
126 |
|
xcbeams = 0; |
127 |
< |
qsort((char *)cbeam, ncbeams, sizeof(struct beamcomp), |
127 |
> |
qsort((char *)cbeam, ncbeams, sizeof(PACKHEAD), |
128 |
|
adopt ? cbeamcmp : cbeamcmp2); |
129 |
|
if (adopt) |
130 |
|
return; |
131 |
|
for (i = ncbeams; i--; ) /* identify orphans */ |
132 |
< |
if (cbeam[i].wants) |
132 |
> |
if (cbeam[i].nr) |
133 |
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break; |
134 |
|
xcbeams = ncbeams - ++i; /* put orphans after ncbeams */ |
135 |
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ncbeams = i; |
136 |
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} |
137 |
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|
138 |
|
|
139 |
< |
cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
140 |
< |
int op; |
168 |
< |
register struct beamcomp *bl; |
169 |
< |
int n; |
170 |
< |
VIEW *v; |
171 |
< |
int hr, vr; |
139 |
> |
beam_init(fresh) /* clear beam list for new view(s) */ |
140 |
> |
int fresh; |
141 |
|
{ |
173 |
– |
register PACKHEAD *pa; |
142 |
|
register int i; |
143 |
|
|
144 |
< |
if (n <= 0) |
145 |
< |
return; |
146 |
< |
pa = (PACKHEAD *)malloc(n*sizeof(PACKHEAD)); |
147 |
< |
if (pa == NULL) |
148 |
< |
error(SYSTEM, "out of memory in cbeamadd"); |
149 |
< |
for (i = 0; i < n; i++) { |
182 |
< |
pa[i].hd = bl[i].hd; |
183 |
< |
pa[i].bi = bl[i].bi; |
184 |
< |
pa[i].nr = v==NULL ? 0 : |
185 |
< |
npixels(v, hr, vr, hdlist[bl[i].hd], bl[i].bi); |
186 |
< |
pa[i].nc = 0; |
187 |
< |
} |
188 |
< |
serv_request(op, n*sizeof(PACKHEAD), (char *)pa); |
189 |
< |
free((char *)pa); |
144 |
> |
if (fresh) /* discard old beams? */ |
145 |
> |
ncbeams = xcbeams = 0; |
146 |
> |
else /* else clear sample requests */ |
147 |
> |
for (i = ncbeams+xcbeams; i--; ) |
148 |
> |
cbeam[i].nr = 0; |
149 |
> |
cureye.rng = 0.; |
150 |
|
} |
151 |
|
|
152 |
|
|
153 |
< |
int |
154 |
< |
set_voxels(vl, n) /* set new voxel array */ |
155 |
< |
VOXL vl[MAXVOXEL]; |
156 |
< |
int n; |
153 |
> |
int2 * |
154 |
> |
beam_view(vn, hr, vr) /* add beam view (if advisable) */ |
155 |
> |
VIEW *vn; |
156 |
> |
int hr, vr; |
157 |
|
{ |
158 |
< |
short wmap[256]; |
159 |
< |
int vmap[MAXVOXEL]; |
160 |
< |
int comn = 0; |
161 |
< |
int no; |
162 |
< |
register int i, j; |
163 |
< |
/* find common voxels */ |
164 |
< |
for (j = 0; j < MAXVOXEL && voxel[j].hd >= 0; j++) { |
165 |
< |
vmap[j] = -1; |
166 |
< |
for (i = n; i--; ) |
167 |
< |
if (!bcmp((char *)(vl+i), (char *)(voxel+j), |
208 |
< |
sizeof(VOXL))) { |
209 |
< |
vmap[j] = i; |
210 |
< |
comn |= 1<<i; |
211 |
< |
break; |
212 |
< |
} |
158 |
> |
int2 *slist; |
159 |
> |
BEAMLIST blist; |
160 |
> |
double eravg, d; |
161 |
> |
register HOLO *hp; |
162 |
> |
register int i, n; |
163 |
> |
/* compute beams for view */ |
164 |
> |
slist = viewbeams(vn, hr, vr, &blist); |
165 |
> |
if (*slist < 0) { |
166 |
> |
error(COMMAND, "no sections visible from this view"); |
167 |
> |
return(NULL); |
168 |
|
} |
169 |
< |
no = comn ? j : 0; /* compute flag mapping */ |
170 |
< |
for (i = 256; i--; ) { |
171 |
< |
wmap[i] = 0; |
172 |
< |
for (j = no; j--; ) |
173 |
< |
if (vmap[j] >= 0 && i & 1<<j) |
174 |
< |
wmap[i] |= 1<<vmap[j]; |
169 |
> |
/* sort current beam list */ |
170 |
> |
cbeamsort(1); |
171 |
> |
/* add new beams to list */ |
172 |
> |
for (i = blist.nb; i--; ) { |
173 |
> |
n = getcbeam(blist.bl[i].hd, blist.bl[i].bi); |
174 |
> |
if (blist.bl[i].nr > cbeam[n].nr) |
175 |
> |
cbeam[n].nr = blist.bl[i].nr; |
176 |
|
} |
177 |
< |
/* fix cbeam flags */ |
178 |
< |
for (i = ncbeams; i--; ) |
179 |
< |
cbeam[i].wants = wmap[cbeam[i].wants]; |
180 |
< |
/* update our voxel list */ |
181 |
< |
bcopy((char *)vl, (char *)voxel, n*sizeof(VOXL)); |
182 |
< |
if (n < MAXVOXEL) |
183 |
< |
voxel[n].hd = -1; |
184 |
< |
return(comn); /* return bit array of common voxels */ |
185 |
< |
} |
186 |
< |
|
231 |
< |
|
232 |
< |
int |
233 |
< |
get_voxels(vl, vp) /* find voxels corresponding to view point */ |
234 |
< |
VOXL vl[MAXVOXEL]; |
235 |
< |
FVECT vp; |
236 |
< |
{ |
237 |
< |
int first, n; |
238 |
< |
FVECT gp; |
239 |
< |
double d; |
240 |
< |
int dist, bestd = 0x7fff; |
241 |
< |
VOXL vox; |
242 |
< |
register int i, j, k; |
243 |
< |
/* count voxels in list already */ |
244 |
< |
for (first = 0; first < MAXVOXEL && vl[first].hd >= 0; first++) |
245 |
< |
; |
246 |
< |
/* find closest voxels */ |
247 |
< |
for (n = first, i = 0; n < MAXVOXEL && hdlist[i]; i++) { |
248 |
< |
hdgrid(gp, hdlist[i], vp); |
249 |
< |
for (j = 0; n < MAXVOXEL && j < 8; j++) { |
250 |
< |
dist = 0; |
251 |
< |
for (k = 0; k < 3; k++) { |
252 |
< |
d = gp[k] - .5 + (j>>k & 1); |
253 |
< |
if (d < 0.) |
254 |
< |
dist += -(vox.i[k] = (int)d - 1); |
255 |
< |
else if ((vox.i[k] = d) >= hdlist[i]->grid[k]) |
256 |
< |
dist += vox.i[k] - |
257 |
< |
hdlist[i]->grid[k] + 1; |
258 |
< |
} |
259 |
< |
if (dist > bestd) /* others were closer */ |
260 |
< |
continue; |
261 |
< |
if (dist < bestd) { /* start closer list */ |
262 |
< |
n = first; |
263 |
< |
bestd = dist; |
264 |
< |
} |
265 |
< |
/* check if already in list */ |
266 |
< |
for (k = first; k--; ) |
267 |
< |
if (vl[k].hd == i && |
268 |
< |
vl[k].i[0] == vox.i[0] && |
269 |
< |
vl[k].i[1] == vox.i[1] && |
270 |
< |
vl[k].i[2] == vox.i[2]) |
271 |
< |
break; |
272 |
< |
if (k >= 0) |
273 |
< |
continue; |
274 |
< |
vox.hd = i; /* add this voxel */ |
275 |
< |
copystruct(&vl[n], &vox); |
276 |
< |
n++; |
277 |
< |
} |
177 |
> |
free((char *)blist.bl); /* free list */ |
178 |
> |
if (MEYERNG <= FTINY) |
179 |
> |
return(slist); |
180 |
> |
/* compute average eye range */ |
181 |
> |
eravg = 0.; |
182 |
> |
for (n = 0; slist[n] >= 0; n++) { |
183 |
> |
hp = hdlist[slist[n]]; |
184 |
> |
eravg += MEYERNG/3. / VLEN(hp->wg[0]) + |
185 |
> |
MEYERNG/3. / VLEN(hp->wg[1]) + |
186 |
> |
MEYERNG/3. / VLEN(hp->wg[2]) ; |
187 |
|
} |
188 |
< |
/* check for really stupid move */ |
189 |
< |
if (bestd > MAXDIST) { |
190 |
< |
error(COMMAND, "move past outer limits"); |
191 |
< |
return(0); |
188 |
> |
eravg /= (double)n; |
189 |
> |
/* add to current eye position */ |
190 |
> |
if (cureye.rng <= FTINY) { |
191 |
> |
VCOPY(cureye.vpt, vn->vp); |
192 |
> |
cureye.rng = eravg; |
193 |
> |
} else if ((d = sqrt(dist2(vn->vp,cureye.vpt))) + eravg > cureye.rng) { |
194 |
> |
for (i = 3; i--; ) |
195 |
> |
cureye.vpt[i] = 0.5*(cureye.vpt[i] + vn->vp[i]); |
196 |
> |
cureye.rng = 0.5*(cureye.rng + eravg + d); |
197 |
|
} |
198 |
< |
if (n < MAXVOXEL) |
285 |
< |
vl[n].hd = -1; |
286 |
< |
return(n); |
198 |
> |
return(slist); |
199 |
|
} |
200 |
|
|
201 |
|
|
202 |
|
int |
203 |
< |
dobeam(gcp, bp) /* express interest or disintrest in a beam */ |
204 |
< |
GCOORD *gcp; |
293 |
< |
register struct beamact *bp; |
203 |
> |
beam_sync(all) /* update beam list on server */ |
204 |
> |
int all; |
205 |
|
{ |
206 |
< |
GCOORD gc[2]; |
207 |
< |
int bi, i; |
208 |
< |
/* compute beam index */ |
209 |
< |
if (bp->ca.rev) { |
210 |
< |
copystruct(gc, &bp->gc); |
211 |
< |
copystruct(gc+1, gcp); |
206 |
> |
/* set new eye position */ |
207 |
> |
serv_request(DR_VIEWPOINT, sizeof(VIEWPOINT), (char *)&cureye); |
208 |
> |
/* sort list (put orphans at end) */ |
209 |
> |
cbeamsort(all < 0); |
210 |
> |
/* send beam request */ |
211 |
> |
if (all) { |
212 |
> |
if (ncbeams > 0) |
213 |
> |
serv_request(DR_NEWSET, |
214 |
> |
ncbeams*sizeof(PACKHEAD), cbeam); |
215 |
|
} else { |
216 |
< |
copystruct(gc, gcp); |
217 |
< |
copystruct(gc+1, &bp->gc); |
216 |
> |
if (ncbeams+xcbeams > 0) |
217 |
> |
serv_request(DR_ADJSET, |
218 |
> |
(ncbeams+xcbeams)*sizeof(PACKHEAD), cbeam); |
219 |
|
} |
220 |
< |
if ((bi = hdbindex(hdlist[voxel[bp->ca.vi].hd], gc)) <= 0) |
221 |
< |
error(CONSISTENCY, "bad grid coordinate in dobeam"); |
307 |
< |
if (bp->ca.add) { /* add it in */ |
308 |
< |
i = getcbeam(voxel[bp->ca.vi].hd, bi); |
309 |
< |
cbeam[i].wants |= 1<<bp->ca.vi; /* say we want it */ |
310 |
< |
return(i == ncbeams+xcbeams-1); /* return 1 if totally new */ |
311 |
< |
} |
312 |
< |
/* else delete it */ |
313 |
< |
i = findcbeam(voxel[bp->ca.vi].hd, bi); |
314 |
< |
if (i >= 0 && cbeam[i].wants & 1<<bp->ca.vi) { |
315 |
< |
cbeam[i].wants &= ~(1<<bp->ca.vi); /* we don't want it */ |
316 |
< |
return(1); /* indicate change */ |
317 |
< |
} |
318 |
< |
return(0); |
220 |
> |
xcbeams = 0; /* truncate our list */ |
221 |
> |
return(ncbeams); |
222 |
|
} |
223 |
|
|
224 |
|
|
225 |
< |
|
226 |
< |
int |
324 |
< |
docell(gcp, cap) /* find beams corresponding to cell and voxel */ |
325 |
< |
GCOORD *gcp; |
326 |
< |
register struct cellact *cap; |
225 |
> |
gridlines(f) /* run through holodeck section grid lines */ |
226 |
> |
int (*f)(); |
227 |
|
{ |
228 |
< |
register HOLO *hp = hdlist[voxel[cap->vi].hd]; |
229 |
< |
FVECT org, dir[4]; |
230 |
< |
FVECT vgp, cgp, vc; |
231 |
< |
FVECT v1, v2; |
232 |
< |
struct beamact bo; |
233 |
< |
int axmax, j; |
234 |
< |
double d, avmax; |
235 |
< |
register int i; |
236 |
< |
/* compute cell center */ |
237 |
< |
cgp[gcp->w>>1] = gcp->w&1 ? hp->grid[gcp->w>>1] : 0 ; |
238 |
< |
cgp[hdwg0[gcp->w]] = gcp->i[0] + .5; |
239 |
< |
cgp[hdwg1[gcp->w]] = gcp->i[1] + .5; |
240 |
< |
hdworld(org, hp, cgp); |
241 |
< |
/* compute direction to voxel center */ |
242 |
< |
for (i = 3; i--; ) |
243 |
< |
vgp[i] = voxel[cap->vi].i[i] + .5; |
244 |
< |
hdworld(vc, hp, vgp); |
245 |
< |
for (i = 3; i--; ) |
246 |
< |
vc[i] -= org[i]; |
247 |
< |
/* compute maximum area axis */ |
248 |
< |
axmax = -1; avmax = 0; |
249 |
< |
for (i = 3; i--; ) { |
250 |
< |
d = vgp[i] - cgp[i]; |
251 |
< |
if (d < 0.) d = -d; |
252 |
< |
if (d > avmax) { |
253 |
< |
avmax = d; |
354 |
< |
axmax = i; |
355 |
< |
} |
356 |
< |
} |
357 |
< |
#ifdef DEBUG |
358 |
< |
if (axmax < 0.) |
359 |
< |
error(CONSISTENCY, "botched axis computation in docell"); |
360 |
< |
#endif |
361 |
< |
/* compute offset vectors */ |
362 |
< |
d = 0.5/hp->grid[j=(axmax+1)%3]; |
363 |
< |
for (i = 3; i--; ) |
364 |
< |
v1[i] = hp->xv[j][i] * d; |
365 |
< |
d = 0.5/hp->grid[j=(axmax+2)%3]; |
366 |
< |
if (DOT(hp->wg[axmax], vc) < 0.) |
367 |
< |
d = -d; /* reverse vertex order */ |
368 |
< |
for (i = 3; i--; ) |
369 |
< |
v2[i] = hp->xv[j][i] * d; |
370 |
< |
/* compute voxel pyramid */ |
371 |
< |
for (i = 3; i--; ) { |
372 |
< |
dir[0][i] = vc[i] - v1[i] - v2[i]; |
373 |
< |
dir[1][i] = vc[i] + v1[i] - v2[i]; |
374 |
< |
dir[2][i] = vc[i] + v1[i] + v2[i]; |
375 |
< |
dir[3][i] = vc[i] - v1[i] + v2[i]; |
376 |
< |
} |
377 |
< |
/* visit beams for opposite cells */ |
378 |
< |
copystruct(&bo.ca, cap); |
379 |
< |
copystruct(&bo.gc, gcp); |
380 |
< |
return(visit_cells(org, dir, hp, dobeam, &bo)); |
381 |
< |
} |
382 |
< |
|
383 |
< |
|
384 |
< |
int |
385 |
< |
doview(cap, vp) /* visit cells for a given view */ |
386 |
< |
struct cellact *cap; |
387 |
< |
VIEW *vp; |
388 |
< |
{ |
389 |
< |
int orient; |
390 |
< |
FVECT org, dir[4]; |
391 |
< |
/* compute view pyramid */ |
392 |
< |
orient = viewpyramid(org, dir, hdlist[voxel[cap->vi].hd], vp); |
393 |
< |
if (!orient) |
394 |
< |
error(INTERNAL, "unusable view in doview"); |
395 |
< |
cap->rev = orient < 0; |
396 |
< |
/* visit cells within pyramid */ |
397 |
< |
return(visit_cells(org, dir, hdlist[voxel[cap->vi].hd], docell, cap)); |
398 |
< |
} |
399 |
< |
|
400 |
< |
|
401 |
< |
mvview(voxi, vold, vnew) /* move view for a voxel */ |
402 |
< |
int voxi; |
403 |
< |
VIEW *vold, *vnew; |
404 |
< |
{ |
405 |
< |
int netchange = 0; |
406 |
< |
struct cellact oca, nca; |
407 |
< |
int ocnt, ncnt; |
408 |
< |
int nmatch = 0; |
409 |
< |
GCOORD *ogcl, *ngcl; |
410 |
< |
register int c; |
411 |
< |
register GCOORD *ogcp, *ngcp; |
412 |
< |
/* get old and new cell lists */ |
413 |
< |
ogcp = ogcl = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
414 |
< |
ngcp = ngcl = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
415 |
< |
/* set up actions */ |
416 |
< |
oca.vi = nca.vi = voxi; |
417 |
< |
oca.add = 0; nca.add = 1; |
418 |
< |
if ((oca.rev = ocnt < 0)) |
419 |
< |
ocnt = -ocnt; |
420 |
< |
if ((nca.rev = ncnt < 0)) |
421 |
< |
ncnt = -ncnt; |
422 |
< |
if (oca.rev == nca.rev) { /* count matches */ |
423 |
< |
int oc = ocnt, nc = ncnt; |
424 |
< |
while (oc > 0 & nc > 0) { |
425 |
< |
c = cellcmp(ogcp, ngcp); |
426 |
< |
if (c >= 0) { ngcp++; nc--; } |
427 |
< |
if (c <= 0) { ogcp++; oc--; } |
428 |
< |
nmatch += c==0; |
429 |
< |
} |
430 |
< |
ogcp = ogcl; ngcp = ngcl; |
431 |
< |
} |
432 |
< |
if (nmatch < ocnt>>1) { /* faster to just delete old cells? */ |
433 |
< |
for (c = ncbeams; c--; ) |
434 |
< |
if (cbeam[c].wants & 1<<voxi) { |
435 |
< |
cbeam[c].wants &= ~(1<<voxi); |
436 |
< |
netchange--; |
228 |
> |
register int hd, w, i; |
229 |
> |
int g0, g1; |
230 |
> |
FVECT wp[2], mov; |
231 |
> |
double d; |
232 |
> |
/* do each wall on each section */ |
233 |
> |
for (hd = 0; hdlist[hd] != NULL; hd++) |
234 |
> |
for (w = 0; w < 6; w++) { |
235 |
> |
g0 = hdwg0[w]; |
236 |
> |
g1 = hdwg1[w]; |
237 |
> |
d = 1.0/hdlist[hd]->grid[g0]; |
238 |
> |
mov[0] = d * hdlist[hd]->xv[g0][0]; |
239 |
> |
mov[1] = d * hdlist[hd]->xv[g0][1]; |
240 |
> |
mov[2] = d * hdlist[hd]->xv[g0][2]; |
241 |
> |
if (w & 1) { |
242 |
> |
VSUM(wp[0], hdlist[hd]->orig, |
243 |
> |
hdlist[hd]->xv[w>>1], 1.); |
244 |
> |
VSUM(wp[0], wp[0], mov, 1.); |
245 |
> |
} else |
246 |
> |
VCOPY(wp[0], hdlist[hd]->orig); |
247 |
> |
VSUM(wp[1], wp[0], hdlist[hd]->xv[g1], 1.); |
248 |
> |
for (i = hdlist[hd]->grid[g0]; ; ) { /* g0 lines */ |
249 |
> |
(*f)(wp); |
250 |
> |
if (!--i) break; |
251 |
> |
wp[0][0] += mov[0]; wp[0][1] += mov[1]; |
252 |
> |
wp[0][2] += mov[2]; wp[1][0] += mov[0]; |
253 |
> |
wp[1][1] += mov[1]; wp[1][2] += mov[2]; |
254 |
|
} |
255 |
< |
free((char *)ogcl); |
256 |
< |
ogcl = NULL; ocnt = 0; |
257 |
< |
} |
258 |
< |
/* add and delete cells in order */ |
259 |
< |
while (ocnt > 0 & ncnt > 0) |
260 |
< |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
261 |
< |
netchange += docell(ngcp++, &nca); |
262 |
< |
ncnt--; |
263 |
< |
} else if (c < 0) { /* old cell */ |
264 |
< |
netchange -= docell(ogcp++, &oca); |
265 |
< |
ocnt--; |
266 |
< |
} else { /* same cell */ |
267 |
< |
ogcp++; ocnt--; |
268 |
< |
ngcp++; ncnt--; |
255 |
> |
d = 1.0/hdlist[hd]->grid[g1]; |
256 |
> |
mov[0] = d * hdlist[hd]->xv[g1][0]; |
257 |
> |
mov[1] = d * hdlist[hd]->xv[g1][1]; |
258 |
> |
mov[2] = d * hdlist[hd]->xv[g1][2]; |
259 |
> |
if (w & 1) |
260 |
> |
VSUM(wp[0], hdlist[hd]->orig, |
261 |
> |
hdlist[hd]->xv[w>>1], 1.); |
262 |
> |
else |
263 |
> |
VSUM(wp[0], hdlist[hd]->orig, mov, 1.); |
264 |
> |
VSUM(wp[1], wp[0], hdlist[hd]->xv[g0], 1.); |
265 |
> |
for (i = hdlist[hd]->grid[g1]; ; ) { /* g1 lines */ |
266 |
> |
(*f)(wp); |
267 |
> |
if (!--i) break; |
268 |
> |
wp[0][0] += mov[0]; wp[0][1] += mov[1]; |
269 |
> |
wp[0][2] += mov[2]; wp[1][0] += mov[0]; |
270 |
> |
wp[1][1] += mov[1]; wp[1][2] += mov[2]; |
271 |
> |
} |
272 |
|
} |
453 |
– |
/* take care of list tails */ |
454 |
– |
for ( ; ncnt > 0; ncnt--) |
455 |
– |
netchange += docell(ngcp++, &nca); |
456 |
– |
for ( ; ocnt > 0; ocnt--) |
457 |
– |
netchange -= docell(ogcp++, &oca); |
458 |
– |
/* clean up */ |
459 |
– |
if (ogcl != NULL) free((char *)ogcl); |
460 |
– |
if (ngcl != NULL) free((char *)ngcl); |
461 |
– |
return(netchange); |
462 |
– |
} |
463 |
– |
|
464 |
– |
|
465 |
– |
int |
466 |
– |
beam_sync() /* synchronize beams on server */ |
467 |
– |
{ |
468 |
– |
cbeamop(DR_NEWSET, cbeam, ncbeams, &odev.v, odev.hres, odev.vres); |
469 |
– |
return(ncbeams); |
470 |
– |
} |
471 |
– |
|
472 |
– |
|
473 |
– |
beam_view(vn) /* change beam view (if advisable) */ |
474 |
– |
VIEW *vn; |
475 |
– |
{ |
476 |
– |
struct cellact ca; |
477 |
– |
VOXL vlnew[MAXVOXEL]; |
478 |
– |
int n, comn; |
479 |
– |
|
480 |
– |
if (vn == NULL || !vn->type) { /* clear our beam list */ |
481 |
– |
set_voxels(vlnew, 0); |
482 |
– |
cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
483 |
– |
ncbeams = 0; |
484 |
– |
dvw.type = 0; |
485 |
– |
return(1); |
486 |
– |
} |
487 |
– |
/* find our new voxels */ |
488 |
– |
n = get_voxels(vlnew, vn->vp); |
489 |
– |
if (dvw.type && !n) { |
490 |
– |
copystruct(vn, &dvw); /* cancel move */ |
491 |
– |
return(0); |
492 |
– |
} |
493 |
– |
/* set the new voxels */ |
494 |
– |
comn = set_voxels(vlnew, n); |
495 |
– |
if (!dvw.type) |
496 |
– |
comn = 0; |
497 |
– |
ca.add = 1; /* update our beam list */ |
498 |
– |
for (ca.vi = n; ca.vi--; ) |
499 |
– |
if (comn & 1<<ca.vi) /* change which cells we see */ |
500 |
– |
mvview(ca.vi, &dvw, vn); |
501 |
– |
else /* else add all new cells */ |
502 |
– |
doview(&ca, vn); |
503 |
– |
/* inform server of new beams */ |
504 |
– |
cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
505 |
– |
/* sort list to put orphans at end */ |
506 |
– |
cbeamsort(0); |
507 |
– |
/* tell server to delete orphans */ |
508 |
– |
cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
509 |
– |
xcbeams = 0; /* truncate our list */ |
510 |
– |
copystruct(&dvw, vn); /* record new view */ |
511 |
– |
return(1); |
273 |
|
} |