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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ SGI"; |
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> |
static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* Routines for tracking beam compuatations |
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*/ |
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#include "rholo.h" |
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|
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#ifndef NFRAG2CHUNK |
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#define NFRAG2CHUNK 4096 /* number of fragments to start chunking */ |
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+ |
#endif |
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|
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#ifndef abs |
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#define abs(x) ((x) > 0 ? (x) : -(x)) |
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#endif |
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#ifndef sgn |
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#define sgn(x) ((x) > 0 ? 1 : (x) < 0 ? -1 : 0) |
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#endif |
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|
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#define rchunk(n) (((n)+(RPACKSIZ/2))/RPACKSIZ) |
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|
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int chunkycmp = 0; /* clump beams together on disk */ |
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|
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static PACKHEAD *complist=NULL; /* list of beams to compute */ |
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static int complen=0; /* length of complist */ |
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static int listpos=0; /* current list position for next_packet */ |
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static int lastin= -1; /* last ordered position in list */ |
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|
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static void sortcomplist(void); |
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static void mergeclists(PACKHEAD *cdest, PACKHEAD *cl1, int n1, PACKHEAD *cl2, int n2); |
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static void view_list(FILE *fp); |
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static void ambient_list(void); |
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static double beamvolume(HOLO *hp, int bi); |
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static void dispbeam(BEAM *b, HDBEAMI *hb); |
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|
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< |
int |
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> |
|
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> |
|
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> |
static int |
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beamcmp(b0, b1) /* comparison for compute order */ |
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register PACKHEAD *b0, *b1; |
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{ |
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< |
return( b1->nr*(b0->nc+1) - b0->nr*(b1->nc+1) ); |
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> |
BEAMI *bip0, *bip1; |
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> |
register long c; |
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> |
/* first check desired quantities */ |
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> |
if (chunkycmp) |
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> |
c = rchunk(b1->nr)*(rchunk(b0->nc)+1L) - |
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> |
rchunk(b0->nr)*(rchunk(b1->nc)+1L); |
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> |
else |
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> |
c = b1->nr*(b0->nc+1L) - b0->nr*(b1->nc+1L); |
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> |
if (c > 0) return(1); |
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> |
if (c < 0) return(-1); |
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/* only one file, so skip the following: */ |
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> |
#if 0 |
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> |
/* next, check file descriptors */ |
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> |
c = hdlist[b0->hd]->fd - hdlist[b1->hd]->fd; |
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> |
if (c) return(c); |
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> |
#endif |
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> |
/* finally, check file positions */ |
| 60 |
> |
bip0 = &hdlist[b0->hd]->bi[b0->bi]; |
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> |
bip1 = &hdlist[b1->hd]->bi[b1->bi]; |
| 62 |
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/* put diskless beams last */ |
| 63 |
> |
if (!bip0->nrd) |
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> |
return(bip1->nrd > 0); |
| 65 |
> |
if (!bip1->nrd) |
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> |
return(-1); |
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> |
c = bip0->fo - bip1->fo; |
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> |
return(c < 0 ? -1 : c > 0); |
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} |
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|
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|
| 80 |
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} |
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|
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|
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< |
int |
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< |
dispbeam(b, hb) /* display a holodeck beam */ |
| 85 |
< |
register BEAM *b; |
| 86 |
< |
register HDBEAMI *hb; |
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> |
static void |
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> |
dispbeam( /* display a holodeck beam */ |
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> |
register BEAM *b, |
| 86 |
> |
register HDBEAMI *hb |
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> |
) |
| 88 |
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{ |
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static int n = 0; |
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static PACKHEAD *p = NULL; |
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if (b->nrm > n) { /* (re)allocate packet holder */ |
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n = b->nrm; |
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if (p == NULL) p = (PACKHEAD *)malloc(packsiz(n)); |
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< |
else p = (PACKHEAD *)realloc((char *)p, packsiz(n)); |
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if (p == NULL) |
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error(SYSTEM, "out of memory in dispbeam"); |
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> |
else p = (PACKHEAD *)realloc((void *)p, packsiz(n)); |
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> |
CHECK(p==NULL, SYSTEM, "out of memory in dispbeam"); |
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} |
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/* assign packet fields */ |
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< |
bcopy((char *)hdbray(b), (char *)packra(p), b->nrm*sizeof(RAYVAL)); |
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> |
memcpy((void *)packra(p), (void *)hdbray(b), b->nrm*sizeof(RAYVAL)); |
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p->nr = p->nc = b->nrm; |
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for (p->hd = 0; hdlist[p->hd] != hb->h; p->hd++) |
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if (hdlist[p->hd] == NULL) |
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error(CONSISTENCY, "unregistered holodeck in dispbeam"); |
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p->bi = hb->b; |
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disp_packet(p); /* display it */ |
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+ |
if (n >= 1024) { /* free ridiculous packets */ |
| 109 |
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free((void *)p); |
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p = NULL; n = 0; |
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+ |
} |
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} |
| 113 |
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|
| 114 |
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|
| 115 |
< |
bundle_set(op, clist, nents) /* bundle set operation */ |
| 116 |
< |
int op; |
| 117 |
< |
PACKHEAD *clist; |
| 118 |
< |
int nents; |
| 115 |
> |
extern void |
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> |
bundle_set( /* bundle set operation */ |
| 117 |
> |
int op, |
| 118 |
> |
PACKHEAD *clist, |
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> |
int nents |
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> |
) |
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{ |
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int oldnr, n; |
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HDBEAMI *hbarr; |
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register PACKHEAD *csm; |
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register int i; |
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/* search for common members */ |
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qsort((char *)clist, nents, sizeof(PACKHEAD), beamidcmp); |
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for (csm = clist+nents; csm-- > clist; ) |
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csm->nc = -1; |
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+ |
qsort((void *)clist, nents, sizeof(PACKHEAD), beamidcmp); |
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for (i = 0; i < complen; i++) { |
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< |
csm = (PACKHEAD *)bsearch((char *)(complist+i), (char *)clist, |
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> |
csm = (PACKHEAD *)bsearch((void *)(complist+i), (void *)clist, |
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nents, sizeof(PACKHEAD), beamidcmp); |
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if (csm == NULL) |
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continue; |
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complist[i].nr += csm->nr; |
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csm->nr = 0; |
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break; |
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+ |
case BS_MAX: /* maximum of counts */ |
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+ |
if (csm->nr > complist[i].nr) |
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+ |
complist[i].nr = csm->nr; |
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csm->nr = 0; |
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+ |
break; |
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case BS_ADJ: /* reset count */ |
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complist[i].nr = csm->nr; |
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csm->nr = 0; |
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if (complist[i].nr != oldnr) |
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lastin = -1; /* flag sort */ |
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} |
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< |
/* computed rays for each uncommon beams */ |
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> |
/* record computed rays for uncommon beams */ |
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for (csm = clist+nents; csm-- > clist; ) |
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if (csm->nc < 0) |
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csm->nc = bnrays(hdlist[csm->hd], csm->bi); |
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case BS_NEW: /* new computation set */ |
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listpos = 0; lastin = -1; |
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if (complen) /* free old list */ |
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< |
free((char *)complist); |
| 170 |
> |
free((void *)complist); |
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complist = NULL; |
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if (!(complen = nents)) |
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return; |
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complist = (PACKHEAD *)malloc(nents*sizeof(PACKHEAD)); |
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if (complist == NULL) |
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goto memerr; |
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< |
bcopy((char *)clist, (char *)complist, nents*sizeof(PACKHEAD)); |
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> |
memcpy((void *)complist, (void *)clist, nents*sizeof(PACKHEAD)); |
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break; |
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case BS_ADD: /* add to computation set */ |
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+ |
case BS_MAX: /* maximum of quantities */ |
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case BS_ADJ: /* adjust set quantities */ |
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if (nents <= 0) |
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return; |
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sortcomplist(); /* sort updated list & new entries */ |
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< |
qsort((char *)clist, nents, sizeof(PACKHEAD), beamcmp); |
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> |
qsort((void *)clist, nents, sizeof(PACKHEAD), beamcmp); |
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/* what can't we satisfy? */ |
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for (i = nents, csm = clist; i-- && csm->nr > csm->nc; csm++) |
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; |
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n = csm - clist; |
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< |
if (op == BS_ADJ) { /* don't regenerate adjusted beams */ |
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< |
for (i = n; i < nents && clist[i].nr > 0; i++) |
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> |
if (op != BS_ADD) { /* don't regenerate adjusted beams */ |
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> |
for (++i; i-- && csm->nr > 0; csm++) |
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; |
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< |
nents = i; |
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> |
nents = csm - clist; |
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} |
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if (n) { /* allocate space for merged list */ |
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PACKHEAD *newlist; |
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/* merge lists */ |
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mergeclists(newlist, clist, n, complist, complen); |
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if (complen) |
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< |
free((char *)complist); |
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> |
free((void *)complist); |
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complist = newlist; |
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complen += n; |
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} |
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default: |
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error(CONSISTENCY, "bundle_set called with unknown operation"); |
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} |
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< |
if (outdev == NULL) /* nothing to display? */ |
| 216 |
> |
if (outdev == NULL || !nents) /* nothing to display? */ |
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return; |
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/* load and display beams we have */ |
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hbarr = (HDBEAMI *)malloc(nents*sizeof(HDBEAMI)); |
| 222 |
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hbarr[i].b = clist[i].bi; |
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} |
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hdloadbeams(hbarr, nents, dispbeam); |
| 225 |
< |
free((char *)hbarr); |
| 225 |
> |
free((void *)hbarr); |
| 226 |
> |
if (hdfragflags&FF_READ) { |
| 227 |
> |
listpos = 0; |
| 228 |
> |
lastin = -1; /* need to re-sort list */ |
| 229 |
> |
} |
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return; |
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memerr: |
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error(SYSTEM, "out of memory in bundle_set"); |
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} |
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|
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|
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< |
double |
| 237 |
< |
beamvolume(hp, bi) /* compute approximate volume of a beam */ |
| 238 |
< |
HOLO *hp; |
| 239 |
< |
int bi; |
| 236 |
> |
static double |
| 237 |
> |
beamvolume( /* compute approximate volume of a beam */ |
| 238 |
> |
HOLO *hp, |
| 239 |
> |
int bi |
| 240 |
> |
) |
| 241 |
|
{ |
| 242 |
|
GCOORD gc[2]; |
| 243 |
|
FVECT cp[4], edgeA, edgeB, cent[2]; |
| 244 |
< |
FVECT v, crossp[2], diffv; |
| 244 |
> |
FVECT crossp[2], diffv; |
| 245 |
|
double vol[2]; |
| 246 |
|
register int i; |
| 247 |
|
/* get grid coordinates */ |
| 267 |
|
} |
| 268 |
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|
| 269 |
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|
| 270 |
< |
init_global() /* initialize global ray computation */ |
| 270 |
> |
static void |
| 271 |
> |
ambient_list(void) /* compute ambient beam list */ |
| 272 |
|
{ |
| 273 |
< |
long wtotal = 0; |
| 273 |
> |
int32 wtotal, minrt; |
| 274 |
|
double frac; |
| 275 |
|
int i; |
| 276 |
|
register int j, k; |
| 277 |
< |
/* free old list and empty queue */ |
| 218 |
< |
if (complen > 0) { |
| 219 |
< |
free((char *)complist); |
| 220 |
< |
done_packets(flush_queue()); |
| 221 |
< |
} |
| 222 |
< |
/* allocate beam list */ |
| 277 |
> |
|
| 278 |
|
complen = 0; |
| 279 |
|
for (j = 0; hdlist[j] != NULL; j++) |
| 280 |
|
complen += nbeams(hdlist[j]); |
| 281 |
|
complist = (PACKHEAD *)malloc(complen*sizeof(PACKHEAD)); |
| 282 |
< |
if (complist == NULL) |
| 228 |
< |
error(SYSTEM, "out of memory in init_global"); |
| 282 |
> |
CHECK(complist==NULL, SYSTEM, "out of memory in ambient_list"); |
| 283 |
|
/* compute beam weights */ |
| 284 |
< |
k = 0; |
| 284 |
> |
k = 0; wtotal = 0; |
| 285 |
|
for (j = 0; hdlist[j] != NULL; j++) { |
| 286 |
|
frac = 512. * VLEN(hdlist[j]->wg[0]) * |
| 287 |
|
VLEN(hdlist[j]->wg[1]) * |
| 294 |
|
wtotal += complist[k++].nr; |
| 295 |
|
} |
| 296 |
|
} |
| 297 |
< |
/* adjust weights */ |
| 297 |
> |
/* adjust sample weights */ |
| 298 |
|
if (vdef(DISKSPACE)) |
| 299 |
|
frac = 1024.*1024.*vflt(DISKSPACE) / (wtotal*sizeof(RAYVAL)); |
| 300 |
|
else |
| 301 |
< |
frac = 1024.*1024.*16384. / (wtotal*sizeof(RAYVAL)); |
| 302 |
< |
while (k--) |
| 303 |
< |
complist[k].nr = frac * complist[k].nr; |
| 304 |
< |
listpos = 0; lastin = -1; /* perform initial sort */ |
| 305 |
< |
sortcomplist(); |
| 301 |
> |
frac = 1024.*1024.*2048. / (wtotal*sizeof(RAYVAL)); |
| 302 |
> |
minrt = .02*frac*wtotal/complen + .5; /* heuristic mimimum */ |
| 303 |
> |
if (minrt > RPACKSIZ) |
| 304 |
> |
minrt = RPACKSIZ; |
| 305 |
> |
for (k = complen; k--; ) |
| 306 |
> |
if ((complist[k].nr = frac*complist[k].nr + 0.5) < minrt) |
| 307 |
> |
complist[k].nr = minrt; |
| 308 |
> |
listpos = 0; lastin = -1; /* flag initial sort */ |
| 309 |
|
} |
| 310 |
|
|
| 311 |
|
|
| 312 |
< |
mergeclists(cdest, cl1, n1, cl2, n2) /* merge two sorted lists */ |
| 313 |
< |
register PACKHEAD *cdest; |
| 314 |
< |
register PACKHEAD *cl1, *cl2; |
| 315 |
< |
int n1, n2; |
| 312 |
> |
static void |
| 313 |
> |
view_list( /* assign beam priority from view list */ |
| 314 |
> |
FILE *fp |
| 315 |
> |
) |
| 316 |
|
{ |
| 317 |
+ |
double pa = 1.; |
| 318 |
+ |
VIEW curview; |
| 319 |
+ |
int xr, yr; |
| 320 |
+ |
char *err; |
| 321 |
+ |
BEAMLIST blist; |
| 322 |
+ |
|
| 323 |
+ |
curview = stdview; |
| 324 |
+ |
while (nextview(&curview, fp) != EOF) { |
| 325 |
+ |
if ((err = setview(&curview)) != NULL) { |
| 326 |
+ |
error(WARNING, err); |
| 327 |
+ |
continue; |
| 328 |
+ |
} |
| 329 |
+ |
xr = yr = 1024; |
| 330 |
+ |
normaspect(viewaspect(&curview), &pa, &xr, &yr); |
| 331 |
+ |
viewbeams(&curview, xr, yr, &blist); |
| 332 |
+ |
bundle_set(BS_MAX, blist.bl, blist.nb); |
| 333 |
+ |
free((void *)blist.bl); |
| 334 |
+ |
} |
| 335 |
+ |
} |
| 336 |
+ |
|
| 337 |
+ |
|
| 338 |
+ |
extern void |
| 339 |
+ |
init_global(void) /* initialize global ray computation */ |
| 340 |
+ |
{ |
| 341 |
+ |
/* free old list and empty queue */ |
| 342 |
+ |
if (complen > 0) { |
| 343 |
+ |
free((void *)complist); |
| 344 |
+ |
done_packets(flush_queue()); |
| 345 |
+ |
} |
| 346 |
+ |
/* reseed random number generator */ |
| 347 |
+ |
srandom(time(NULL)); |
| 348 |
+ |
/* allocate beam list */ |
| 349 |
+ |
if (readinp) |
| 350 |
+ |
view_list(stdin); |
| 351 |
+ |
else |
| 352 |
+ |
ambient_list(); |
| 353 |
+ |
/* no view vicinity */ |
| 354 |
+ |
myeye.rng = 0; |
| 355 |
+ |
} |
| 356 |
+ |
|
| 357 |
+ |
|
| 358 |
+ |
static void |
| 359 |
+ |
mergeclists( /* merge two sorted lists */ |
| 360 |
+ |
register PACKHEAD *cdest, |
| 361 |
+ |
register PACKHEAD *cl1, |
| 362 |
+ |
int n1, |
| 363 |
+ |
register PACKHEAD *cl2, |
| 364 |
+ |
int n2 |
| 365 |
+ |
) |
| 366 |
+ |
{ |
| 367 |
|
register int cmp; |
| 368 |
|
|
| 369 |
|
while (n1 | n2) { |
| 371 |
|
else if (!n2) cmp = -1; |
| 372 |
|
else cmp = beamcmp(cl1, cl2); |
| 373 |
|
if (cmp > 0) { |
| 374 |
< |
copystruct(cdest, cl2); |
| 374 |
> |
*cdest = *cl2; |
| 375 |
|
cl2++; n2--; |
| 376 |
|
} else { |
| 377 |
< |
copystruct(cdest, cl1); |
| 377 |
> |
*cdest = *cl1; |
| 378 |
|
cl1++; n1--; |
| 379 |
|
} |
| 380 |
|
cdest++; |
| 382 |
|
} |
| 383 |
|
|
| 384 |
|
|
| 385 |
< |
sortcomplist() /* fix our list order */ |
| 385 |
> |
static void |
| 386 |
> |
sortcomplist(void) /* fix our list order */ |
| 387 |
|
{ |
| 388 |
|
PACKHEAD *list2; |
| 389 |
+ |
int listlen; |
| 390 |
|
register int i; |
| 391 |
|
|
| 392 |
|
if (complen <= 0) /* check to see if there is even a list */ |
| 393 |
|
return; |
| 394 |
+ |
if (!chunkycmp) /* check to see if fragment list is full */ |
| 395 |
+ |
if (!hdfragOK(hdlist[0]->fd, &listlen, NULL) |
| 396 |
+ |
#if NFRAG2CHUNK |
| 397 |
+ |
|| listlen >= NFRAG2CHUNK |
| 398 |
+ |
#endif |
| 399 |
+ |
) { |
| 400 |
+ |
chunkycmp++; /* use "chunky" comparison */ |
| 401 |
+ |
lastin = -1; /* need to re-sort list */ |
| 402 |
+ |
#ifdef DEBUG |
| 403 |
+ |
error(WARNING, "using chunky comparison mode"); |
| 404 |
+ |
#endif |
| 405 |
+ |
} |
| 406 |
|
if (lastin < 0 || listpos*4 >= complen*3) |
| 407 |
< |
qsort((char *)complist, complen, sizeof(PACKHEAD), beamcmp); |
| 407 |
> |
qsort((void *)complist, complen, sizeof(PACKHEAD), beamcmp); |
| 408 |
|
else if (listpos) { /* else sort and merge sublist */ |
| 409 |
|
list2 = (PACKHEAD *)malloc(listpos*sizeof(PACKHEAD)); |
| 410 |
< |
if (list2 == NULL) |
| 411 |
< |
error(SYSTEM, "out of memory in sortcomplist"); |
| 412 |
< |
bcopy((char *)complist,(char *)list2,listpos*sizeof(PACKHEAD)); |
| 292 |
< |
qsort((char *)list2, listpos, sizeof(PACKHEAD), beamcmp); |
| 410 |
> |
CHECK(list2==NULL, SYSTEM, "out of memory in sortcomplist"); |
| 411 |
> |
memcpy((void *)list2,(void *)complist,listpos*sizeof(PACKHEAD)); |
| 412 |
> |
qsort((void *)list2, listpos, sizeof(PACKHEAD), beamcmp); |
| 413 |
|
mergeclists(complist, list2, listpos, |
| 414 |
|
complist+listpos, complen-listpos); |
| 415 |
< |
free((char *)list2); |
| 415 |
> |
free((void *)list2); |
| 416 |
|
} |
| 417 |
|
/* drop satisfied requests */ |
| 418 |
|
for (i = complen; i-- && complist[i].nr <= complist[i].nc; ) |
| 419 |
|
; |
| 420 |
|
if (i < 0) { |
| 421 |
< |
free((char *)complist); |
| 421 |
> |
free((void *)complist); |
| 422 |
|
complist = NULL; |
| 423 |
|
complen = 0; |
| 424 |
|
} else if (i < complen-1) { |
| 425 |
< |
list2 = (PACKHEAD *)realloc((char *)complist, |
| 425 |
> |
list2 = (PACKHEAD *)realloc((void *)complist, |
| 426 |
|
(i+1)*sizeof(PACKHEAD)); |
| 427 |
< |
if (list2 != NULL) { |
| 427 |
> |
if (list2 != NULL) |
| 428 |
|
complist = list2; |
| 429 |
< |
complen = i+1; |
| 310 |
< |
} |
| 429 |
> |
complen = i+1; |
| 430 |
|
} |
| 431 |
|
listpos = 0; lastin = i; |
| 432 |
|
} |
| 437 |
|
* more or less evenly distributed, such that computing a packet causes |
| 438 |
|
* a given bundle to move way down in the computation order. We keep |
| 439 |
|
* track of where the computed bundle with the highest priority would end |
| 440 |
< |
* up, and if we get further in our compute list than this, we resort the |
| 440 |
> |
* up, and if we get further in our compute list than this, we re-sort the |
| 441 |
|
* list and start again from the beginning. Since |
| 442 |
|
* a merge sort is used, the sorting costs are minimal. |
| 443 |
|
*/ |
| 444 |
< |
next_packet(p, n) /* prepare packet for computation */ |
| 445 |
< |
register PACKET *p; |
| 446 |
< |
int n; |
| 444 |
> |
extern int |
| 445 |
> |
next_packet( /* prepare packet for computation */ |
| 446 |
> |
register PACKET *p, |
| 447 |
> |
int n |
| 448 |
> |
) |
| 449 |
|
{ |
| 329 |
– |
register int i; |
| 330 |
– |
|
| 450 |
|
if (listpos > lastin) /* time to sort the list */ |
| 451 |
|
sortcomplist(); |
| 452 |
|
if (complen <= 0) |
| 457 |
|
p->nr = complist[listpos].nr - p->nc; |
| 458 |
|
if (p->nr <= 0) |
| 459 |
|
return(0); |
| 460 |
< |
#ifdef DEBUG |
| 461 |
< |
if (n < 1 | n > RPACKSIZ) |
| 343 |
< |
error(CONSISTENCY, "next_packet called with bad n value"); |
| 344 |
< |
#endif |
| 460 |
> |
DCHECK(n < 1 | n > RPACKSIZ, |
| 461 |
> |
CONSISTENCY, "next_packet called with bad n value"); |
| 462 |
|
if (p->nr > n) |
| 463 |
|
p->nr = n; |
| 464 |
|
complist[listpos].nc += p->nr; /* find where this one would go */ |
| 465 |
+ |
if (hdgetbeam(hdlist[p->hd], p->bi) != NULL) |
| 466 |
+ |
hdfreefrag(hdlist[p->hd], p->bi); |
| 467 |
|
while (lastin > listpos && |
| 468 |
|
beamcmp(complist+lastin, complist+listpos) > 0) |
| 469 |
|
lastin--; |