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#include "object.h" |
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#include "otypes.h" |
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#ifndef OSTSIZ |
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#ifdef BIGMEM |
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#define OSTSIZ 56437 /* object table size (a prime!) */ |
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#else |
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#define OSTSIZ 12329 /* object table size (a prime!) */ |
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#endif |
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#endif |
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static OBJECT *ostable[OSTSIZ]; /* the object set table */ |
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{ |
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register int i; |
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for (i = (*os++)--; i > 0 && *os < obj; i--, os++) |
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< |
; |
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i = (*os)--; |
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os++; |
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while (i > 0 && *os < obj) { |
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i--; |
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os++; |
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} |
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while (--i > 0) { |
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os[0] = os[1]; |
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os++; |
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lower = 1; |
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upper = cm = os[0] + 1; |
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/* binary search algorithm */ |
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while ((i = (lower + upper) >> 1) != cm) { |
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cm = obj - os[i]; |
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if (cm > 0) |
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} |
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OBJECT * |
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setsave(os) /* allocate space and save set */ |
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register OBJECT *os; |
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{ |
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OBJECT *osnew; |
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register OBJECT *oset; |
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register int i; |
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|
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if ((osnew = oset = (OBJECT *)malloc((*os+1)*sizeof(OBJECT))) == NULL) |
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error(SYSTEM, "out of memory in setsave\n"); |
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for (i = *os; i-- >= 0; ) /* inline setcopy */ |
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*oset++ = *os++; |
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return(osnew); |
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} |
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|
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|
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setunion(osr, os1, os2) /* osr = os1 Union os2 */ |
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register OBJECT *osr, *os1, *os2; |
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{ |
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register int i1, i2; |
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|
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osr[0] = 0; |
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for (i1 = i2 = 1; i1 <= os1[0] || i2 <= os2[0]; ) { |
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while (i1 <= os1[0] && (i2 > os2[0] || os1[i1] <= os2[i2])) { |
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osr[++osr[0]] = os1[i1]; |
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if (i2 <= os2[0] && os2[i2] == os1[i1]) |
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i2++; |
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i1++; |
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} |
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while (i2 <= os2[0] && (i1 > os1[0] || os2[i2] < os1[i1])) |
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osr[++osr[0]] = os2[i2++]; |
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} |
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} |
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|
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|
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setintersect(osr, os1, os2) /* osr = os1 Intersect os2 */ |
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register OBJECT *osr, *os1, *os2; |
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{ |
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register int i1, i2; |
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|
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osr[0] = 0; |
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if (os1[0] <= 0) |
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return; |
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for (i1 = i2 = 1; i2 <= os2[0]; ) { |
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while (os1[i1] < os2[i2]) |
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if (++i1 > os1[0]) |
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return; |
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while (os2[i2] < os1[i1]) |
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if (++i2 > os2[0]) |
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return; |
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if (os1[i1] == os2[i2]) |
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osr[++osr[0]] = os2[i2++]; |
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} |
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} |
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|
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|
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OCTREE |
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fullnode(oset) /* return octree for object set */ |
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OBJECT *oset; |
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} |
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< |
nonsurfinset(orig, nobjs) /* check sets for non-surfaces */ |
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< |
int orig, nobjs; |
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int |
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> |
dosets(f) /* loop through all sets */ |
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> |
int (*f)(); |
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{ |
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+ |
int res = 0; |
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int n; |
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register OBJECT *os; |
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– |
register OBJECT i, t; |
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for (n = 0; n < OSTSIZ; n++) { |
| 254 |
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if ((os = ostable[n]) == NULL) |
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continue; |
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< |
while ((i = *os++) > 0) |
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< |
while (i--) { |
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< |
t = *os++; |
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< |
if (t >= orig && t < orig+nobjs) { |
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< |
t = objptr(t)->otype; |
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< |
if (!issurface(t)) |
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< |
return(1); |
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< |
} |
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< |
} |
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> |
while (*os > 0) { |
| 257 |
> |
res += (*f)(os); |
| 258 |
> |
os += *os + 1; |
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> |
} |
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} |
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< |
return(0); |
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> |
return(res); |
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> |
} |
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> |
|
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> |
|
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> |
donesets() /* free ALL SETS in our table */ |
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> |
{ |
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> |
register int n; |
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> |
|
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> |
for (n = 0; n < OSTSIZ; n++) |
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> |
if (ostable[n] != NULL) { |
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> |
free((char *)ostable[n]); |
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> |
ostable[n] = NULL; |
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> |
} |
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} |
