1 |
– |
/* Copyright (c) 1986 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* readoct.c - routines to read octree information. |
9 |
– |
* |
10 |
– |
* 7/30/85 |
6 |
|
*/ |
7 |
|
|
8 |
< |
#include "standard.h" |
8 |
> |
#include "copyright.h" |
9 |
|
|
10 |
< |
#include "octree.h" |
10 |
> |
#include <stdio.h> |
11 |
> |
#include <time.h> |
12 |
|
|
13 |
+ |
#include "platform.h" |
14 |
+ |
#include "rtprocess.h" |
15 |
+ |
#include "standard.h" |
16 |
+ |
#include "octree.h" |
17 |
|
#include "object.h" |
18 |
– |
|
18 |
|
#include "otypes.h" |
19 |
+ |
#include "resolu.h" |
20 |
|
|
21 |
< |
double atof(); |
22 |
< |
double getflt(); |
23 |
< |
long getint(); |
24 |
< |
char *getstr(); |
25 |
< |
OCTREE getfullnode(), gettree(); |
21 |
> |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
22 |
> |
#undef getc |
23 |
> |
#define getc getc_unlocked |
24 |
> |
#endif |
25 |
|
|
26 |
< |
static char *infn; /* input file name */ |
26 |
> |
static double ogetflt(void); |
27 |
> |
static long ogetint(int); |
28 |
> |
static char *ogetstr(char *); |
29 |
> |
static int nonsurfintree(OCTREE ot); |
30 |
> |
static void octerror(int etyp, char *msg); |
31 |
> |
static void skiptree(void); |
32 |
> |
static OCTREE getfullnode(void), gettree(void); |
33 |
> |
|
34 |
> |
static char *infn; /* input file specification */ |
35 |
|
static FILE *infp; /* input file stream */ |
36 |
+ |
static int objsize; /* size of stored OBJECT's */ |
37 |
|
static OBJECT objorig; /* zeroeth object */ |
38 |
< |
static short otypmap[NUMOTYPE+8]; /* object type map */ |
38 |
> |
static OBJECT fnobjects; /* number of objects in this file */ |
39 |
|
|
40 |
|
|
41 |
|
int |
42 |
< |
readoct(fname, load, scene, ofn) /* read in octree from file */ |
43 |
< |
char *fname; |
44 |
< |
int load; |
45 |
< |
CUBE *scene; |
46 |
< |
char *ofn[]; |
42 |
> |
readoct( /* read in octree file or stream */ |
43 |
> |
char *inpspec, |
44 |
> |
int load, |
45 |
> |
CUBE *scene, |
46 |
> |
char *ofn[] |
47 |
> |
) |
48 |
|
{ |
49 |
< |
char sbuf[128]; |
49 |
> |
char sbuf[512]; |
50 |
|
int nf; |
51 |
< |
register int i; |
51 |
> |
int i; |
52 |
> |
long m; |
53 |
|
|
54 |
< |
if (fname == NULL) { |
54 |
> |
if (inpspec == NULL) { |
55 |
|
infn = "standard input"; |
56 |
|
infp = stdin; |
57 |
+ |
} else if (inpspec[0] == '!') { |
58 |
+ |
infn = inpspec; |
59 |
+ |
if ((infp = popen(inpspec+1, "r")) == NULL) { |
60 |
+ |
sprintf(errmsg, "cannot execute \"%s\"", inpspec); |
61 |
+ |
error(SYSTEM, errmsg); |
62 |
+ |
} |
63 |
|
} else { |
64 |
< |
infn = fname; |
65 |
< |
if ((infp = fopen(fname, "r")) == NULL) { |
64 |
> |
infn = inpspec; |
65 |
> |
if ((infp = fopen(inpspec, "r")) == NULL) { |
66 |
|
sprintf(errmsg, "cannot open octree file \"%s\"", |
67 |
< |
fname); |
67 |
> |
inpspec); |
68 |
|
error(SYSTEM, errmsg); |
69 |
|
} |
70 |
|
} |
71 |
+ |
SET_FILE_BINARY(infp); |
72 |
|
/* get header */ |
73 |
< |
if (load & IO_INFO) |
74 |
< |
copyheader(infp, stdout); |
58 |
< |
else |
59 |
< |
getheader(infp, NULL); |
73 |
> |
if (checkheader(infp, OCTFMT, load&IO_INFO ? stdout : (FILE *)NULL) < 0) |
74 |
> |
octerror(USER, "not an octree"); |
75 |
|
/* check format */ |
76 |
< |
if (getint(2) != OCTMAGIC) |
77 |
< |
octerror(USER, "bad octree"); |
76 |
> |
if ((objsize = ogetint(2)-OCTMAGIC) <= 0 || |
77 |
> |
objsize > MAXOBJSIZ || objsize > sizeof(long)) |
78 |
> |
octerror(USER, "incompatible octree format"); |
79 |
|
/* get boundaries */ |
80 |
|
if (load & IO_BOUNDS) { |
81 |
|
for (i = 0; i < 3; i++) |
82 |
< |
scene->cuorg[i] = atof(getstr(sbuf)); |
83 |
< |
scene->cusize = atof(getstr(sbuf)); |
82 |
> |
scene->cuorg[i] = atof(ogetstr(sbuf)); |
83 |
> |
scene->cusize = atof(ogetstr(sbuf)); |
84 |
|
} else { |
85 |
|
for (i = 0; i < 4; i++) |
86 |
< |
getstr(sbuf); |
86 |
> |
ogetstr(sbuf); |
87 |
|
} |
88 |
|
objorig = nobjects; /* set object offset */ |
89 |
|
nf = 0; /* get object files */ |
90 |
< |
while (*getstr(sbuf)) { |
90 |
> |
while (*ogetstr(sbuf)) { |
91 |
|
if (load & IO_SCENE) |
92 |
|
readobj(sbuf); |
93 |
|
if (load & IO_FILES) |
96 |
|
} |
97 |
|
if (load & IO_FILES) |
98 |
|
ofn[nf] = NULL; |
99 |
+ |
/* get number of objects */ |
100 |
+ |
fnobjects = m = ogetint(objsize); |
101 |
+ |
if (fnobjects != m) |
102 |
+ |
octerror(USER, "too many objects"); |
103 |
|
|
104 |
< |
if (load & IO_TREE) { |
85 |
< |
/* get the octree */ |
104 |
> |
if (load & IO_TREE) /* get the octree */ |
105 |
|
scene->cutree = gettree(); |
106 |
< |
/* get the scene */ |
107 |
< |
if (nf == 0 && load & IO_SCENE) { |
108 |
< |
for (i = 0; *getstr(sbuf); i++) |
109 |
< |
if ((otypmap[i] = otype(sbuf)) < 0) { |
110 |
< |
sprintf(errmsg, "unknown type \"%s\"", |
111 |
< |
sbuf); |
112 |
< |
octerror(WARNING, errmsg); |
113 |
< |
} |
114 |
< |
while (getobj() != OVOID) |
115 |
< |
; |
116 |
< |
} |
106 |
> |
else if (load & IO_SCENE && nf == 0) |
107 |
> |
skiptree(); |
108 |
> |
|
109 |
> |
if (load & IO_SCENE) { /* get the scene */ |
110 |
> |
if (nf == 0) { |
111 |
> |
/* load binary scene data */ |
112 |
> |
readscene(infp, objsize); |
113 |
> |
|
114 |
> |
} else { /* consistency checks */ |
115 |
> |
/* check object count */ |
116 |
> |
if (nobjects != objorig+fnobjects) |
117 |
> |
octerror(USER, "bad object count; octree stale?"); |
118 |
> |
/* check for non-surfaces */ |
119 |
> |
if (nonsurfintree(scene->cutree)) |
120 |
> |
octerror(USER, "modifier in tree; octree stale?"); |
121 |
> |
} |
122 |
|
} |
123 |
< |
fclose(infp); |
123 |
> |
/* close the input */ |
124 |
> |
if (infn[0] == '!') |
125 |
> |
pclose(infp); |
126 |
> |
else |
127 |
> |
fclose(infp); |
128 |
|
return(nf); |
129 |
|
} |
130 |
|
|
131 |
|
|
132 |
|
static char * |
133 |
< |
getstr(s) /* get null-terminated string */ |
106 |
< |
char *s; |
133 |
> |
ogetstr(char *s) /* get null-terminated string */ |
134 |
|
{ |
135 |
< |
register char *cp; |
109 |
< |
register int c; |
135 |
> |
extern char *getstr(); |
136 |
|
|
137 |
< |
cp = s; |
138 |
< |
while ((c = getc(infp)) != EOF) |
139 |
< |
if ((*cp++ = c) == '\0') |
114 |
< |
return(s); |
115 |
< |
|
116 |
< |
octerror(USER, "truncated octree"); |
137 |
> |
if (getstr(s, infp) == NULL) |
138 |
> |
octerror(USER, "truncated octree"); |
139 |
> |
return(s); |
140 |
|
} |
141 |
|
|
142 |
|
|
143 |
|
static OCTREE |
144 |
|
getfullnode() /* get a set, return fullnode */ |
145 |
|
{ |
146 |
< |
OBJECT set[MAXSET+1]; |
146 |
> |
OBJECT set[MAXSET+1]; |
147 |
|
register int i; |
148 |
+ |
register long m; |
149 |
|
|
150 |
< |
set[0] = getint(sizeof(OBJECT)); |
127 |
< |
if (set[0] > MAXSET) |
150 |
> |
if ((set[0] = ogetint(objsize)) > MAXSET) |
151 |
|
octerror(USER, "bad set in getfullnode"); |
152 |
< |
for (i = 1; i <= set[0]; i++) |
153 |
< |
set[i] = getint(sizeof(OBJECT)) + objorig; |
152 |
> |
for (i = 1; i <= set[0]; i++) { |
153 |
> |
m = ogetint(objsize) + objorig; |
154 |
> |
if ((set[i] = m) != m) |
155 |
> |
octerror(USER, "too many objects"); |
156 |
> |
} |
157 |
|
return(fullnode(set)); |
158 |
|
} |
159 |
|
|
160 |
|
|
161 |
|
static long |
162 |
< |
getint(siz) /* get a siz-byte positive integer */ |
137 |
< |
register int siz; |
162 |
> |
ogetint(int siz) /* get a siz-byte integer */ |
163 |
|
{ |
164 |
< |
register int c; |
165 |
< |
register long r = 0L; |
164 |
> |
extern long getint(); |
165 |
> |
register long r; |
166 |
|
|
167 |
< |
while (siz--) { |
168 |
< |
if ((c = getc(infp)) == EOF) |
169 |
< |
octerror(USER, "truncated octree"); |
145 |
< |
r <<= 8; |
146 |
< |
r |= c; |
147 |
< |
} |
167 |
> |
r = getint(siz, infp); |
168 |
> |
if (feof(infp)) |
169 |
> |
octerror(USER, "truncated octree"); |
170 |
|
return(r); |
171 |
|
} |
172 |
|
|
173 |
|
|
174 |
|
static double |
175 |
< |
getflt() /* get a floating point number */ |
175 |
> |
ogetflt() /* get a floating point number */ |
176 |
|
{ |
177 |
< |
extern double ldexp(); |
178 |
< |
double d; |
177 |
> |
extern double getflt(); |
178 |
> |
double r; |
179 |
|
|
180 |
< |
d = (double)getint(sizeof(long))/0x7fffffff; |
181 |
< |
return(ldexp(d, (char)getint(1))); /* sign extend */ |
180 |
> |
r = getflt(infp); |
181 |
> |
if (feof(infp)) |
182 |
> |
octerror(USER, "truncated octree"); |
183 |
> |
return(r); |
184 |
|
} |
185 |
|
|
186 |
|
|
187 |
|
static OCTREE |
188 |
|
gettree() /* get a pre-ordered octree */ |
189 |
|
{ |
190 |
< |
register OCTREE ot; |
190 |
> |
register OCTREE ot; |
191 |
|
register int i; |
192 |
|
|
193 |
|
switch (getc(infp)) { |
206 |
|
default: |
207 |
|
octerror(USER, "damaged octree"); |
208 |
|
} |
209 |
+ |
return EMPTY; /* pro forma return */ |
210 |
|
} |
211 |
|
|
212 |
|
|
213 |
< |
static |
214 |
< |
getobj() /* get next object */ |
213 |
> |
static int |
214 |
> |
nonsurfintree(OCTREE ot) /* check tree for modifiers */ |
215 |
|
{ |
216 |
< |
char sbuf[MAXSTR]; |
192 |
< |
int obj; |
216 |
> |
OBJECT set[MAXSET+1]; |
217 |
|
register int i; |
194 |
– |
register OBJREC *objp; |
218 |
|
|
219 |
< |
i = getint(1); |
220 |
< |
if (i & 0x80) |
221 |
< |
return(OVOID); /* terminator */ |
222 |
< |
if ((obj = newobject()) == OVOID) |
223 |
< |
error(SYSTEM, "out of object space"); |
224 |
< |
objp = objptr(obj); |
225 |
< |
if ((objp->otype = otypmap[i]) < 0) |
226 |
< |
octerror(USER, "reference to unknown type"); |
227 |
< |
if ((objp->omod = getint(sizeof(OBJECT))) != OVOID) |
228 |
< |
objp->omod += objorig; |
229 |
< |
objp->oname = savqstr(getstr(sbuf)); |
230 |
< |
if (objp->oargs.nsargs = getint(2)) { |
231 |
< |
objp->oargs.sarg = (char **)bmalloc |
209 |
< |
(objp->oargs.nsargs*sizeof(char *)); |
210 |
< |
if (objp->oargs.sarg == NULL) |
211 |
< |
goto memerr; |
212 |
< |
for (i = 0; i < objp->oargs.nsargs; i++) |
213 |
< |
objp->oargs.sarg[i] = savestr(getstr(sbuf)); |
214 |
< |
} else |
215 |
< |
objp->oargs.sarg = NULL; |
216 |
< |
#ifdef IARGS |
217 |
< |
if (objp->oargs.niargs = getint(2)) { |
218 |
< |
objp->oargs.iarg = (long *)bmalloc |
219 |
< |
(objp->oargs.niargs*sizeof(long)); |
220 |
< |
if (objp->oargs.iarg == NULL) |
221 |
< |
goto memerr; |
222 |
< |
for (i = 0; i < objp->oargs.niargs; i++) |
223 |
< |
objp->oargs.iarg[i] = getint(sizeof(long)); |
224 |
< |
} else |
225 |
< |
objp->oargs.iarg = NULL; |
226 |
< |
#endif |
227 |
< |
if (objp->oargs.nfargs = getint(2)) { |
228 |
< |
objp->oargs.farg = (double *)bmalloc |
229 |
< |
(objp->oargs.nfargs*sizeof(double)); |
230 |
< |
if (objp->oargs.farg == NULL) |
231 |
< |
goto memerr; |
232 |
< |
for (i = 0; i < objp->oargs.nfargs; i++) |
233 |
< |
objp->oargs.farg[i] = getflt(); |
234 |
< |
} else |
235 |
< |
objp->oargs.farg = NULL; |
236 |
< |
/* initialize */ |
237 |
< |
objp->os = NULL; |
238 |
< |
objp->lastrno = -1; |
239 |
< |
/* insert */ |
240 |
< |
insertobject(obj); |
241 |
< |
return(obj); |
242 |
< |
memerr: |
243 |
< |
error(SYSTEM, "out of memory in getobj"); |
219 |
> |
if (isempty(ot)) |
220 |
> |
return(0); |
221 |
> |
if (istree(ot)) { |
222 |
> |
for (i = 0; i < 8; i++) |
223 |
> |
if (nonsurfintree(octkid(ot, i))) |
224 |
> |
return(1); |
225 |
> |
return(0); |
226 |
> |
} |
227 |
> |
objset(set, ot); |
228 |
> |
for (i = set[0]; i-- > 0; ) |
229 |
> |
if (ismodifier(objptr(set[i])->otype)) |
230 |
> |
return(1); |
231 |
> |
return(0); |
232 |
|
} |
233 |
|
|
234 |
|
|
235 |
< |
static |
236 |
< |
octerror(etyp, msg) /* octree error */ |
237 |
< |
int etyp; |
238 |
< |
char *msg; |
235 |
> |
static void |
236 |
> |
skiptree(void) /* skip octree on input */ |
237 |
> |
{ |
238 |
> |
register int i; |
239 |
> |
|
240 |
> |
switch (getc(infp)) { |
241 |
> |
case OT_EMPTY: |
242 |
> |
return; |
243 |
> |
case OT_FULL: |
244 |
> |
for (i = ogetint(objsize)*objsize; i-- > 0; ) |
245 |
> |
if (getc(infp) == EOF) |
246 |
> |
octerror(USER, "truncated octree"); |
247 |
> |
return; |
248 |
> |
case OT_TREE: |
249 |
> |
for (i = 0; i < 8; i++) |
250 |
> |
skiptree(); |
251 |
> |
return; |
252 |
> |
case EOF: |
253 |
> |
octerror(USER, "truncated octree"); |
254 |
> |
default: |
255 |
> |
octerror(USER, "damaged octree"); |
256 |
> |
} |
257 |
> |
} |
258 |
> |
|
259 |
> |
|
260 |
> |
static void |
261 |
> |
octerror(int etyp, char *msg) /* octree error */ |
262 |
|
{ |
263 |
|
char msgbuf[128]; |
264 |
|
|