11 |
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#include "standard.h" |
12 |
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|
13 |
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#include "sm_qtree.h" |
14 |
– |
#include "object.h" |
14 |
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|
15 |
< |
#define QTSETIBLK 1024 /* set index allocation block size */ |
15 |
> |
|
16 |
> |
#define QTSETIBLK 2048 /* set index allocation block size */ |
17 |
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#define QTELEMBLK 8 /* set element allocation block */ |
18 |
+ |
#define QTELEMMOD(ne) ((ne)&7) /* (ne) % QTELEMBLK */ |
19 |
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|
20 |
< |
#define QTNODESIZ(ne) ((ne) + QTELEMBLK - ((ne) % QTELEMBLK)) |
20 |
> |
#define QTONTHRESH(ne) (!QTELEMMOD((ne)+1)) |
21 |
> |
#define QTNODESIZ(ne) ((ne) + QTELEMBLK - QTELEMMOD(ne)) |
22 |
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|
23 |
< |
static OBJECT **qtsettab; /* quadtree leaf node table */ |
24 |
< |
static QUADTREE qtnumsets; /* number of used set indices */ |
23 |
> |
OBJECT **qtsettab= NULL; /* quadtree leaf node table */ |
24 |
> |
QUADTREE qtnumsets; /* number of used set indices */ |
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static int qtfreesets = EMPTY; /* free set index list */ |
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|
27 |
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|
30 |
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OBJECT *oset; |
31 |
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{ |
32 |
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register QUADTREE osi; |
31 |
– |
int nalc; |
33 |
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|
34 |
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if (*oset <= 0) |
35 |
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return(EMPTY); /* should be error? */ |
42 |
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if (qtsettab == NULL) |
43 |
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goto memerr; |
44 |
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} |
45 |
< |
nalc = QTNODESIZ(*oset); |
46 |
< |
if ((qtsettab[osi] = (OBJECT *)malloc(nalc*sizeof(OBJECT))) == NULL) |
45 |
> |
qtsettab[osi] = (OBJECT *)malloc(QTNODESIZ(*oset)*sizeof(OBJECT)); |
46 |
> |
if (qtsettab[osi] == NULL) |
47 |
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goto memerr; |
48 |
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setcopy(qtsettab[osi], oset); |
49 |
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return(QT_INDEX(osi)); |
53 |
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|
54 |
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|
55 |
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QUADTREE |
56 |
< |
qtdelelem(qt, id) /* delete element from leaf node, no quest. */ |
56 |
> |
qtdelelem(qt, id) /* delete element from leaf node */ |
57 |
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QUADTREE qt; |
58 |
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OBJECT id; |
59 |
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{ |
60 |
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register QUADTREE lf; |
60 |
– |
int oalc, nalc; |
61 |
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|
62 |
< |
if (QT_IS_EMPTY(qt)) |
63 |
< |
return(EMPTY); |
64 |
< |
if (!QT_IS_LEAF(qt)) |
65 |
< |
goto noderr; |
62 |
> |
#ifdef DEBUG |
63 |
> |
if(id < 0) |
64 |
> |
eputs("qtdelelem():Invalid triangle id\n"); |
65 |
> |
if (!QT_IS_LEAF(qt) || (lf = QT_SET_INDEX(qt)) >= qtnumsets) |
66 |
> |
error(CONSISTENCY, "empty/bad node in qtdelelem"); |
67 |
> |
if (!inset(qtsettab[lf], id)) |
68 |
> |
error(CONSISTENCY, "id not in leaf in qtdelelem"); |
69 |
> |
#else |
70 |
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lf = QT_SET_INDEX(qt); |
71 |
< |
if (lf >= qtnumsets) |
68 |
< |
goto noderr; |
71 |
> |
#endif |
72 |
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if (qtsettab[lf][0] <= 1) { /* blow leaf away */ |
73 |
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free((char *)qtsettab[lf]); |
74 |
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qtsettab[lf] = (OBJECT *)qtfreesets; |
75 |
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qtfreesets = lf; |
76 |
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return(EMPTY); |
77 |
< |
} /* else delete element */ |
75 |
< |
oalc = QTNODESIZ(qtsettab[lf][0]); |
76 |
< |
nalc = QTNODESIZ(qtsettab[lf][0] - 1); |
77 |
> |
} |
78 |
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deletelem(qtsettab[lf], id); |
79 |
< |
if (nalc != oalc) |
79 |
> |
if (QTONTHRESH(qtsettab[lf][0])) |
80 |
|
qtsettab[lf] = (OBJECT *)realloc((char *)qtsettab[lf], |
81 |
< |
nalc*sizeof(OBJECT)); |
81 |
> |
QTNODESIZ(qtsettab[lf][0])*sizeof(OBJECT)); |
82 |
|
return(qt); |
82 |
– |
noderr: |
83 |
– |
error(CONSISTENCY, "bad node in qtdelelem"); |
83 |
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} |
84 |
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|
85 |
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|
86 |
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QUADTREE |
87 |
< |
qtaddelem(qt, id) /* add element to leaf node, no quest. */ |
87 |
> |
qtaddelem(qt, id) /* add element to leaf node */ |
88 |
|
QUADTREE qt; |
89 |
|
OBJECT id; |
90 |
|
{ |
91 |
|
OBJECT newset[2]; |
92 |
|
register QUADTREE lf; |
94 |
– |
int oalc, nalc; |
93 |
|
|
94 |
+ |
#ifdef DEBUG |
95 |
+ |
if(id < 0) |
96 |
+ |
eputs("qtaddelem():Invalid triangle id\n"); |
97 |
+ |
#endif |
98 |
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if (QT_IS_EMPTY(qt)) { /* create new leaf */ |
99 |
|
newset[0] = 1; newset[1] = id; |
100 |
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return(qtnewleaf(newset)); |
101 |
|
} /* else add element */ |
102 |
< |
if (!QT_IS_LEAF(qt)) |
103 |
< |
goto noderr; |
102 |
> |
#ifdef DEBUG |
103 |
> |
if (!QT_IS_LEAF(qt) || (lf = QT_SET_INDEX(qt)) >= qtnumsets) |
104 |
> |
error(CONSISTENCY, "bad node in qtaddelem"); |
105 |
> |
if (inset(qtsettab[lf], id)) |
106 |
> |
error(CONSISTENCY, "id already in leaf in qtaddelem"); |
107 |
> |
#else |
108 |
|
lf = QT_SET_INDEX(qt); |
109 |
< |
if (lf >= qtnumsets) |
110 |
< |
goto noderr; |
105 |
< |
oalc = QTNODESIZ(qtsettab[lf][0]); |
106 |
< |
nalc = QTNODESIZ(qtsettab[lf][0] + 1); |
107 |
< |
if (nalc != oalc) { |
109 |
> |
#endif |
110 |
> |
if (QTONTHRESH(qtsettab[lf][0])) { |
111 |
|
qtsettab[lf] = (OBJECT *)realloc((char *)qtsettab[lf], |
112 |
< |
nalc*sizeof(OBJECT)); |
112 |
> |
QTNODESIZ(qtsettab[lf][0]+1)*sizeof(OBJECT)); |
113 |
|
if (qtsettab[lf] == NULL) |
114 |
|
error(SYSTEM, "out of memory in qtaddelem"); |
115 |
|
} |
116 |
|
insertelem(qtsettab[lf], id); |
117 |
|
return(qt); |
115 |
– |
noderr: |
116 |
– |
error(CONSISTENCY, "bad node in qtaddelem"); |
118 |
|
} |
119 |
|
|
120 |
|
|
121 |
< |
qtgetset(oset, qt) /* get object set for leaf node */ |
122 |
< |
register OBJECT *oset; |
121 |
> |
#ifdef DEBUG |
122 |
> |
OBJECT * |
123 |
> |
qtqueryset(qt) /* return object set for leaf node */ |
124 |
|
QUADTREE qt; |
125 |
|
{ |
126 |
< |
QUADTREE lf; |
125 |
< |
register OBJECT *os; |
126 |
< |
register int i; |
126 |
> |
register QUADTREE lf; |
127 |
|
|
128 |
< |
if (!QT_IS_LEAF(qt)) |
129 |
< |
goto noderr; |
130 |
< |
lf = QT_SET_INDEX(qt); |
131 |
< |
if (lf >= qtnumsets) |
132 |
< |
goto noderr; |
133 |
< |
for (i = *(os = qtsettab[lf]); i-- >= 0; ) |
134 |
< |
*oset++ = *os++; |
135 |
< |
return; |
136 |
< |
noderr: |
137 |
< |
error(CONSISTENCY, "bad node in qtgetset"); |
128 |
> |
if (!QT_IS_LEAF(qt) || (lf = QT_SET_INDEX(qt)) >= qtnumsets) |
129 |
> |
error(CONSISTENCY, "bad node in qtqueryset"); |
130 |
> |
return(qtsettab[lf]); |
131 |
|
} |
132 |
+ |
#endif |
133 |
|
|
134 |
|
|
135 |
|
qtfreeleaf(qt) /* free set and leaf node */ |
141 |
|
return; |
142 |
|
osi = QT_SET_INDEX(qt); |
143 |
|
if (osi >= qtnumsets) |
144 |
< |
error(CONSISTENCY, "bad node in qtfreeleaf"); |
144 |
> |
return; |
145 |
|
free((char *)qtsettab[osi]); |
146 |
|
qtsettab[osi] = (OBJECT *)qtfreesets; |
147 |
|
qtfreesets = osi; |
148 |
|
} |
149 |
|
|
150 |
|
|
151 |
+ |
|
152 |
+ |
qtfreeleaves() /* free ALL sets and leaf nodes */ |
153 |
+ |
{ |
154 |
+ |
register int i; |
155 |
+ |
|
156 |
+ |
while ((i = qtfreesets) != EMPTY) { |
157 |
+ |
qtfreesets = (int)qtsettab[i]; |
158 |
+ |
qtsettab[i] = NULL; |
159 |
+ |
} |
160 |
+ |
for (i = qtnumsets; i--; ) |
161 |
+ |
if (qtsettab[i] != NULL) |
162 |
+ |
free((char *)qtsettab[i]); |
163 |
+ |
free((char *)qtsettab); |
164 |
+ |
qtsettab = NULL; |
165 |
+ |
qtnumsets = 0; |
166 |
+ |
} |
167 |
+ |
|
168 |
+ |
|
169 |
|
check_set(os, cs) /* modify checked set and set to check */ |
170 |
|
register OBJECT *os; /* os' = os - cs */ |
171 |
|
register OBJECT *cs; /* cs' = cs + os */ |
172 |
|
{ |
173 |
< |
OBJECT cset[MAXCSET+MAXSET+1]; |
173 |
> |
OBJECT cset[QT_MAXCSET+QT_MAXSET+1]; |
174 |
|
register int i, j; |
175 |
|
int k; |
176 |
|
/* copy os in place, cset <- cs */ |
188 |
|
return; /* special case */ |
189 |
|
while (j <= cs[0]) /* get the rest of cs */ |
190 |
|
cset[++cset[0]] = cs[j++]; |
191 |
< |
if (cset[0] > MAXCSET) /* truncate "checked" set if nec. */ |
192 |
< |
cset[0] = MAXCSET; |
191 |
> |
if (cset[0] > QT_MAXCSET) /* truncate "checked" set if nec. */ |
192 |
> |
cset[0] = QT_MAXCSET; |
193 |
|
/* setcopy(cs, cset); */ /* copy cset back to cs */ |
194 |
|
os = cset; |
195 |
|
for (i = os[0]; i-- >= 0; ) |
196 |
|
*cs++ = *os++; |
197 |
|
} |
198 |
+ |
|