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/* Copyright (c) 1986 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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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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* readoct.c - routines to read octree information. |
9 |
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* |
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* 7/30/85 |
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*/ |
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|
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#include "standard.h" |
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#include "copyright.h" |
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|
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#include "octree.h" |
10 |
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#include <stdio.h> |
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#include <time.h> |
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|
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#include "platform.h" |
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#include "paths.h" |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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|
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#include "otypes.h" |
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#include "resolu.h" |
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|
21 |
< |
double atof(); |
22 |
< |
double getflt(); |
23 |
< |
long getint(); |
24 |
< |
char *getstr(); |
25 |
< |
OCTREE getfullnode(), gettree(); |
21 |
> |
static double ogetflt(void); |
22 |
> |
static long ogetint(int); |
23 |
> |
static char *ogetstr(char *); |
24 |
> |
static int nonsurfintree(OCTREE ot); |
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> |
static void octerror(int etyp, char *msg); |
26 |
> |
static void skiptree(void); |
27 |
> |
static OCTREE getfullnode(void), gettree(void); |
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|
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static char *infn; /* input file name */ |
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static char *infn; /* input file specification */ |
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static FILE *infp; /* input file stream */ |
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static int objsize; /* size of stored OBJECT's */ |
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static OBJECT objorig; /* zeroeth object */ |
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static short otypmap[NUMOTYPE+8]; /* object type map */ |
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> |
static OBJECT fnobjects; /* number of objects in this file */ |
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|
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|
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int |
37 |
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readoct(fname, load, scene, ofn) /* read in octree from file */ |
38 |
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char *fname; |
39 |
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int load; |
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CUBE *scene; |
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char *ofn[]; |
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readoct( /* read in octree file or stream */ |
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char *inpspec, |
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int load, |
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CUBE *scene, |
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char *ofn[] |
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) |
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{ |
44 |
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char sbuf[128]; |
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> |
time_t oct_t = 0; |
45 |
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time_t last_it = 0; |
46 |
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char sbuf[512]; |
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int nf; |
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register int i; |
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int i; |
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long m; |
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|
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if (fname == NULL) { |
51 |
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if (inpspec == NULL) { |
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infn = "standard input"; |
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infp = stdin; |
54 |
+ |
} else if (inpspec[0] == '!') { |
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infn = inpspec; |
56 |
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if ((infp = popen(inpspec+1, "r")) == NULL) { |
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sprintf(errmsg, "cannot execute \"%s\"", inpspec); |
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error(SYSTEM, errmsg); |
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} |
60 |
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} else { |
61 |
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infn = fname; |
62 |
< |
if ((infp = fopen(fname, "r")) == NULL) { |
61 |
> |
infn = inpspec; |
62 |
> |
if ((infp = fopen(inpspec, "r")) == NULL) { |
63 |
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sprintf(errmsg, "cannot open octree file \"%s\"", |
64 |
< |
fname); |
64 |
> |
inpspec); |
65 |
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error(SYSTEM, errmsg); |
66 |
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} |
67 |
+ |
oct_t = fddate(fileno(infp)); |
68 |
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} |
69 |
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#ifdef getc_unlocked /* avoid stupid semaphores */ |
70 |
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flockfile(infp); |
71 |
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#endif |
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SET_FILE_BINARY(infp); |
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/* get header */ |
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if (load & IO_INFO) |
75 |
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copyheader(infp, stdout); |
58 |
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else |
59 |
< |
getheader(infp, NULL); |
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> |
if (checkheader(infp, OCTFMT, load&IO_INFO ? stdout : (FILE *)NULL) < 0) |
75 |
> |
octerror(USER, "not an octree"); |
76 |
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/* check format */ |
77 |
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if (getint(2) != OCTMAGIC) |
78 |
< |
octerror(USER, "bad octree"); |
77 |
> |
if ((objsize = ogetint(2)-OCTMAGIC) <= 0 || |
78 |
> |
objsize > MAXOBJSIZ || objsize > sizeof(long)) |
79 |
> |
octerror(USER, "incompatible octree format"); |
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/* get boundaries */ |
81 |
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if (load & IO_BOUNDS) { |
82 |
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for (i = 0; i < 3; i++) |
83 |
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scene->cuorg[i] = atof(getstr(sbuf)); |
84 |
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scene->cusize = atof(getstr(sbuf)); |
83 |
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scene->cuorg[i] = atof(ogetstr(sbuf)); |
84 |
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scene->cusize = atof(ogetstr(sbuf)); |
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} else { |
86 |
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for (i = 0; i < 4; i++) |
87 |
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getstr(sbuf); |
87 |
> |
ogetstr(sbuf); |
88 |
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} |
89 |
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objorig = nobjects; /* set object offset */ |
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nf = 0; /* get object files */ |
91 |
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while (*getstr(sbuf)) { |
91 |
> |
while (*ogetstr(sbuf)) { |
92 |
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if (load & IO_SCENE) |
93 |
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readobj(sbuf); |
94 |
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if (load & IO_FILES) |
95 |
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ofn[nf] = savqstr(sbuf); |
96 |
+ |
if (oct_t > last_it) { |
97 |
+ |
time_t t = fdate(sbuf); |
98 |
+ |
if (t > last_it) |
99 |
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last_it = t; |
100 |
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} |
101 |
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nf++; |
102 |
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} |
103 |
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if (load & IO_FILES) |
104 |
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ofn[nf] = NULL; |
105 |
+ |
/* get number of objects */ |
106 |
+ |
fnobjects = m = ogetint(objsize); |
107 |
+ |
if (fnobjects != m) |
108 |
+ |
octerror(USER, "too many objects"); |
109 |
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|
110 |
< |
if (load & IO_TREE) { |
85 |
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/* get the octree */ |
110 |
> |
if (load & IO_TREE) /* get the octree */ |
111 |
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scene->cutree = gettree(); |
112 |
< |
/* get the scene */ |
113 |
< |
if (nf == 0 && load & IO_SCENE) { |
114 |
< |
for (i = 0; *getstr(sbuf); i++) |
115 |
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if ((otypmap[i] = otype(sbuf)) < 0) { |
116 |
< |
sprintf(errmsg, "unknown type \"%s\"", |
117 |
< |
sbuf); |
118 |
< |
octerror(WARNING, errmsg); |
119 |
< |
} |
120 |
< |
while (getobj() != OVOID) |
121 |
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; |
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} |
112 |
> |
else if (load & IO_SCENE && nf == 0) |
113 |
> |
skiptree(); |
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|
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if (load & IO_SCENE) { /* get the scene */ |
116 |
> |
if (nf == 0) { |
117 |
> |
/* load binary scene data */ |
118 |
> |
readscene(infp, objsize); |
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> |
|
120 |
> |
} else { /* consistency checks */ |
121 |
> |
/* check object count */ |
122 |
> |
if (nobjects != objorig+fnobjects) |
123 |
> |
octerror(USER, "bad object count; octree stale?"); |
124 |
> |
/* check for non-surfaces */ |
125 |
> |
if (oct_t <= last_it && nonsurfintree(scene->cutree)) |
126 |
> |
octerror(USER, "modifier in tree; octree stale?"); |
127 |
> |
} |
128 |
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} |
129 |
< |
fclose(infp); |
129 |
> |
/* close the input */ |
130 |
> |
if (inpspec[0] == '!') { |
131 |
> |
if (pclose(infp) != 0) { |
132 |
> |
sprintf(errmsg, "bad status from \"%s\"", inpspec); |
133 |
> |
error(USER, errmsg); |
134 |
> |
} |
135 |
> |
} else if (infp != stdin) |
136 |
> |
fclose(infp); |
137 |
> |
#ifdef getc_unlocked |
138 |
> |
else |
139 |
> |
funlockfile(infp); |
140 |
> |
#endif |
141 |
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return(nf); |
142 |
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} |
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|
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|
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static char * |
146 |
< |
getstr(s) /* get null-terminated string */ |
106 |
< |
char *s; |
146 |
> |
ogetstr(char *s) /* get null-terminated string */ |
147 |
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{ |
148 |
< |
register char *cp; |
109 |
< |
register int c; |
148 |
> |
extern char *getstr(); |
149 |
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|
150 |
< |
cp = s; |
151 |
< |
while ((c = getc(infp)) != EOF) |
152 |
< |
if ((*cp++ = c) == '\0') |
114 |
< |
return(s); |
115 |
< |
|
116 |
< |
octerror(USER, "truncated octree"); |
150 |
> |
if (getstr(s, infp) == NULL) |
151 |
> |
octerror(USER, "truncated octree"); |
152 |
> |
return(s); |
153 |
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} |
154 |
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|
155 |
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|
156 |
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static OCTREE |
157 |
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getfullnode() /* get a set, return fullnode */ |
158 |
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{ |
159 |
< |
OBJECT set[MAXSET+1]; |
159 |
> |
OBJECT set[MAXSET+1]; |
160 |
|
register int i; |
161 |
+ |
register long m; |
162 |
|
|
163 |
< |
set[0] = getint(sizeof(OBJECT)); |
127 |
< |
if (set[0] > MAXSET) |
163 |
> |
if ((set[0] = ogetint(objsize)) > MAXSET) |
164 |
|
octerror(USER, "bad set in getfullnode"); |
165 |
< |
for (i = 1; i <= set[0]; i++) |
166 |
< |
set[i] = getint(sizeof(OBJECT)) + objorig; |
165 |
> |
for (i = 1; i <= set[0]; i++) { |
166 |
> |
m = ogetint(objsize) + objorig; |
167 |
> |
if ((set[i] = m) != m) |
168 |
> |
octerror(USER, "too many objects"); |
169 |
> |
} |
170 |
|
return(fullnode(set)); |
171 |
|
} |
172 |
|
|
173 |
|
|
174 |
|
static long |
175 |
< |
getint(siz) /* get a siz-byte integer */ |
137 |
< |
register int siz; |
175 |
> |
ogetint(int siz) /* get a siz-byte integer */ |
176 |
|
{ |
177 |
< |
register int c; |
177 |
> |
extern long getint(); |
178 |
|
register long r; |
179 |
|
|
180 |
< |
c = getc(infp); |
181 |
< |
r = c&0x80 ? -1L : 0L; /* sign extend */ |
182 |
< |
ungetc(c, infp); |
145 |
< |
while (siz--) { |
146 |
< |
if ((c = getc(infp)) == EOF) |
147 |
< |
octerror(USER, "truncated octree"); |
148 |
< |
r <<= 8; |
149 |
< |
r |= c; |
150 |
< |
} |
180 |
> |
r = getint(siz, infp); |
181 |
> |
if (feof(infp)) |
182 |
> |
octerror(USER, "truncated octree"); |
183 |
|
return(r); |
184 |
|
} |
185 |
|
|
186 |
|
|
187 |
|
static double |
188 |
< |
getflt() /* get a floating point number */ |
188 |
> |
ogetflt() /* get a floating point number */ |
189 |
|
{ |
190 |
< |
extern double ldexp(); |
191 |
< |
double d; |
190 |
> |
extern double getflt(); |
191 |
> |
double r; |
192 |
|
|
193 |
< |
d = (double)getint(4)/0x7fffffff; |
194 |
< |
return(ldexp(d, getint(1))); /* sign extend */ |
193 |
> |
r = getflt(infp); |
194 |
> |
if (feof(infp)) |
195 |
> |
octerror(USER, "truncated octree"); |
196 |
> |
return(r); |
197 |
|
} |
198 |
|
|
199 |
|
|
200 |
|
static OCTREE |
201 |
|
gettree() /* get a pre-ordered octree */ |
202 |
|
{ |
203 |
< |
register OCTREE ot; |
203 |
> |
register OCTREE ot; |
204 |
|
register int i; |
205 |
|
|
206 |
|
switch (getc(infp)) { |
219 |
|
default: |
220 |
|
octerror(USER, "damaged octree"); |
221 |
|
} |
222 |
+ |
return EMPTY; /* pro forma return */ |
223 |
|
} |
224 |
|
|
225 |
|
|
226 |
< |
static |
227 |
< |
getobj() /* get next object */ |
226 |
> |
static int |
227 |
> |
nonsurfintree(OCTREE ot) /* check tree for modifiers */ |
228 |
|
{ |
229 |
< |
char sbuf[MAXSTR]; |
195 |
< |
int obj; |
229 |
> |
OBJECT set[MAXSET+1]; |
230 |
|
register int i; |
197 |
– |
register OBJREC *objp; |
231 |
|
|
232 |
< |
i = getint(1); |
233 |
< |
if (i == -1) |
234 |
< |
return(OVOID); /* terminator */ |
235 |
< |
if ((obj = newobject()) == OVOID) |
236 |
< |
error(SYSTEM, "out of object space"); |
237 |
< |
objp = objptr(obj); |
238 |
< |
if ((objp->otype = otypmap[i]) < 0) |
239 |
< |
octerror(USER, "reference to unknown type"); |
240 |
< |
if ((objp->omod = getint(sizeof(OBJECT))) != OVOID) |
241 |
< |
objp->omod += objorig; |
242 |
< |
objp->oname = savqstr(getstr(sbuf)); |
243 |
< |
if (objp->oargs.nsargs = getint(2)) { |
244 |
< |
objp->oargs.sarg = (char **)bmalloc |
212 |
< |
(objp->oargs.nsargs*sizeof(char *)); |
213 |
< |
if (objp->oargs.sarg == NULL) |
214 |
< |
goto memerr; |
215 |
< |
for (i = 0; i < objp->oargs.nsargs; i++) |
216 |
< |
objp->oargs.sarg[i] = savestr(getstr(sbuf)); |
217 |
< |
} else |
218 |
< |
objp->oargs.sarg = NULL; |
219 |
< |
#ifdef IARGS |
220 |
< |
if (objp->oargs.niargs = getint(2)) { |
221 |
< |
objp->oargs.iarg = (long *)bmalloc |
222 |
< |
(objp->oargs.niargs*sizeof(long)); |
223 |
< |
if (objp->oargs.iarg == NULL) |
224 |
< |
goto memerr; |
225 |
< |
for (i = 0; i < objp->oargs.niargs; i++) |
226 |
< |
objp->oargs.iarg[i] = getint(4); |
227 |
< |
} else |
228 |
< |
objp->oargs.iarg = NULL; |
229 |
< |
#endif |
230 |
< |
if (objp->oargs.nfargs = getint(2)) { |
231 |
< |
objp->oargs.farg = (double *)bmalloc |
232 |
< |
(objp->oargs.nfargs*sizeof(double)); |
233 |
< |
if (objp->oargs.farg == NULL) |
234 |
< |
goto memerr; |
235 |
< |
for (i = 0; i < objp->oargs.nfargs; i++) |
236 |
< |
objp->oargs.farg[i] = getflt(); |
237 |
< |
} else |
238 |
< |
objp->oargs.farg = NULL; |
239 |
< |
/* initialize */ |
240 |
< |
objp->os = NULL; |
241 |
< |
objp->lastrno = -1; |
242 |
< |
/* insert */ |
243 |
< |
insertobject(obj); |
244 |
< |
return(obj); |
245 |
< |
memerr: |
246 |
< |
error(SYSTEM, "out of memory in getobj"); |
232 |
> |
if (isempty(ot)) |
233 |
> |
return(0); |
234 |
> |
if (istree(ot)) { |
235 |
> |
for (i = 0; i < 8; i++) |
236 |
> |
if (nonsurfintree(octkid(ot, i))) |
237 |
> |
return(1); |
238 |
> |
return(0); |
239 |
> |
} |
240 |
> |
objset(set, ot); |
241 |
> |
for (i = set[0]; i > 0; i-- ) |
242 |
> |
if (ismodifier(objptr(set[i])->otype)) |
243 |
> |
return(1); |
244 |
> |
return(0); |
245 |
|
} |
246 |
|
|
247 |
|
|
248 |
< |
static |
249 |
< |
octerror(etyp, msg) /* octree error */ |
250 |
< |
int etyp; |
251 |
< |
char *msg; |
248 |
> |
static void |
249 |
> |
skiptree(void) /* skip octree on input */ |
250 |
> |
{ |
251 |
> |
register int i; |
252 |
> |
|
253 |
> |
switch (getc(infp)) { |
254 |
> |
case OT_EMPTY: |
255 |
> |
return; |
256 |
> |
case OT_FULL: |
257 |
> |
for (i = ogetint(objsize)*objsize; i-- > 0; ) |
258 |
> |
if (getc(infp) == EOF) |
259 |
> |
octerror(USER, "truncated octree"); |
260 |
> |
return; |
261 |
> |
case OT_TREE: |
262 |
> |
for (i = 0; i < 8; i++) |
263 |
> |
skiptree(); |
264 |
> |
return; |
265 |
> |
case EOF: |
266 |
> |
octerror(USER, "truncated octree"); |
267 |
> |
default: |
268 |
> |
octerror(USER, "damaged octree"); |
269 |
> |
} |
270 |
> |
} |
271 |
> |
|
272 |
> |
|
273 |
> |
static void |
274 |
> |
octerror(int etyp, char *msg) /* octree error */ |
275 |
|
{ |
276 |
|
char msgbuf[128]; |
277 |
|
|