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/* Copyright (c) 1986 Regents of the University of California */ |
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|
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#ifndef lint |
| 2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
| 2 |
> |
static const char RCSid[] = "$Id$"; |
| 3 |
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#endif |
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– |
|
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/* |
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* readobj.c - routines for reading in object descriptions. |
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* |
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< |
* 7/28/85 |
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> |
* External symbols declared in object.h |
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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 "object.h" |
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> |
#include <ctype.h> |
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|
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+ |
#include "platform.h" |
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+ |
#include "standard.h" |
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+ |
#include "object.h" |
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#include "otypes.h" |
| 18 |
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|
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< |
#include <ctype.h> |
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> |
#ifndef OBJMEMOPT |
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> |
#define OBJMEMOPT 0 /* optimize object block memory? */ |
| 21 |
> |
#endif |
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|
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OBJREC *objblock[MAXOBJBLK]; /* our objects */ |
| 24 |
< |
int nobjects = 0; /* # of objects */ |
| 24 |
> |
OBJECT nobjects = 0; /* # of objects */ |
| 25 |
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|
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|
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< |
readobj(input) /* read in an object file or stream */ |
| 28 |
< |
char *input; |
| 27 |
> |
void |
| 28 |
> |
readobj( /* read in an object file or stream */ |
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> |
char *inpspec |
| 30 |
> |
) |
| 31 |
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{ |
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< |
FILE *popen(); |
| 29 |
< |
char *fgets(); |
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> |
OBJECT lastobj; |
| 33 |
|
FILE *infp; |
| 34 |
< |
char buf[512]; |
| 35 |
< |
register int c; |
| 34 |
> |
char buf[2048]; |
| 35 |
> |
int c; |
| 36 |
|
|
| 37 |
< |
if (input == NULL) { |
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> |
lastobj = nobjects; |
| 38 |
> |
if (inpspec == NULL) { |
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infp = stdin; |
| 40 |
< |
input = "standard input"; |
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< |
} else if (input[0] == '!') { |
| 42 |
< |
if ((infp = popen(input+1, "r")) == NULL) { |
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< |
sprintf(errmsg, "cannot execute \"%s\"", input); |
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> |
inpspec = "standard input"; |
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> |
} else if (inpspec[0] == '!') { |
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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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} |
| 46 |
< |
} else if ((infp = fopen(input, "r")) == NULL) { |
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< |
sprintf(errmsg, "cannot open scene file \"%s\"", input); |
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> |
} else if ((infp = fopen(inpspec, "r")) == NULL) { |
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> |
sprintf(errmsg, "cannot open scene file \"%s\"", inpspec); |
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error(SYSTEM, errmsg); |
| 49 |
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} |
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+ |
#ifdef getc_unlocked /* avoid stupid semaphores */ |
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+ |
flockfile(infp); |
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+ |
#endif |
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while ((c = getc(infp)) != EOF) { |
| 54 |
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if (isspace(c)) |
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continue; |
| 56 |
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if (c == '#') { /* comment */ |
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fgets(buf, sizeof(buf), infp); |
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< |
} else if (c == '!') { /* pipe */ |
| 58 |
> |
} else if (c == '!') { /* command */ |
| 59 |
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ungetc(c, infp); |
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< |
fgets(buf, sizeof(buf), infp); |
| 54 |
< |
c = strlen(buf); |
| 55 |
< |
if (buf[c-1] == '\n') |
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< |
buf[c-1] = '\0'; |
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> |
fgetline(buf, sizeof(buf), infp); |
| 61 |
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readobj(buf); |
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} else { /* object */ |
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ungetc(c, infp); |
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getobject(input, infp); |
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> |
getobject(inpspec, infp); |
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} |
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} |
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< |
if (input[0] == '!') |
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< |
pclose(infp); |
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< |
else |
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> |
if (inpspec[0] == '!') { |
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> |
if (pclose(infp) != 0) { |
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> |
sprintf(errmsg, "bad status from \"%s\"", inpspec); |
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> |
error(WARNING, errmsg); |
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> |
} |
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> |
} else if (infp != stdin) |
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fclose(infp); |
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+ |
#ifdef getc_unlocked |
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+ |
else |
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funlockfile(infp); |
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+ |
#endif |
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+ |
if (nobjects == lastobj) { |
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+ |
sprintf(errmsg, "(%s): empty file", inpspec); |
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+ |
error(WARNING, errmsg); |
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+ |
} |
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} |
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|
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|
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< |
getobject(name, fp) /* read the next object */ |
| 86 |
< |
char *name; |
| 87 |
< |
FILE *fp; |
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> |
void |
| 86 |
> |
getobject( /* read the next object */ |
| 87 |
> |
char *name, |
| 88 |
> |
FILE *fp |
| 89 |
> |
) |
| 90 |
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{ |
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+ |
#define OALIAS -2 |
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OBJECT obj; |
| 93 |
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char sbuf[MAXSTR]; |
| 94 |
< |
register OBJREC *objp; |
| 94 |
> |
int rval; |
| 95 |
> |
OBJREC *objp; |
| 96 |
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|
| 97 |
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if ((obj = newobject()) == OVOID) |
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error(SYSTEM, "out of object space"); |
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objp = objptr(obj); |
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/* get modifier */ |
| 101 |
< |
fscanf(fp, "%s", sbuf); |
| 101 |
> |
strcpy(sbuf, "EOF"); |
| 102 |
> |
fgetword(sbuf, MAXSTR, fp); |
| 103 |
> |
if (strchr(sbuf, '\t')) { |
| 104 |
> |
sprintf(errmsg, "(%s): illegal tab in modifier \"%s\"", |
| 105 |
> |
name, sbuf); |
| 106 |
> |
error(USER, errmsg); |
| 107 |
> |
} |
| 108 |
|
if (!strcmp(sbuf, VOIDID)) |
| 109 |
|
objp->omod = OVOID; |
| 110 |
+ |
else if (!strcmp(sbuf, ALIASMOD)) |
| 111 |
+ |
objp->omod = OALIAS; |
| 112 |
|
else if ((objp->omod = modifier(sbuf)) == OVOID) { |
| 113 |
|
sprintf(errmsg, "(%s): undefined modifier \"%s\"", name, sbuf); |
| 114 |
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error(USER, errmsg); |
| 115 |
|
} |
| 116 |
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/* get type */ |
| 117 |
< |
fscanf(fp, "%s", sbuf); |
| 118 |
< |
if (!strcmp(sbuf, ALIASID)) |
| 119 |
< |
objp->otype = -1; |
| 93 |
< |
else if ((objp->otype = otype(sbuf)) < 0) { |
| 117 |
> |
strcpy(sbuf, "EOF"); |
| 118 |
> |
fgetword(sbuf, MAXSTR, fp); |
| 119 |
> |
if ((objp->otype = otype(sbuf)) < 0) { |
| 120 |
|
sprintf(errmsg, "(%s): unknown type \"%s\"", name, sbuf); |
| 121 |
|
error(USER, errmsg); |
| 122 |
|
} |
| 123 |
|
/* get identifier */ |
| 124 |
< |
fscanf(fp, "%s", sbuf); |
| 124 |
> |
sbuf[0] = '\0'; |
| 125 |
> |
fgetword(sbuf, MAXSTR, fp); |
| 126 |
> |
if (strchr(sbuf, '\t')) { |
| 127 |
> |
sprintf(errmsg, "(%s): illegal tab in identifier \"%s\"", |
| 128 |
> |
name, sbuf); |
| 129 |
> |
error(USER, errmsg); |
| 130 |
> |
} |
| 131 |
|
objp->oname = savqstr(sbuf); |
| 132 |
|
/* get arguments */ |
| 133 |
< |
if (objp->otype == -1) { |
| 134 |
< |
register OBJECT alias; |
| 135 |
< |
fscanf(fp, "%s", sbuf); |
| 136 |
< |
if ((alias = modifier(sbuf)) == OVOID) { |
| 137 |
< |
sprintf(errmsg, |
| 138 |
< |
"(%s): bad reference \"%s\" for %s \"%s\"", |
| 139 |
< |
name, sbuf, ALIASID, objp->oname); |
| 140 |
< |
error(USER, errmsg); |
| 133 |
> |
if (objp->otype == MOD_ALIAS) { |
| 134 |
> |
OBJECT ref; |
| 135 |
> |
OBJREC *rfp; |
| 136 |
> |
strcpy(sbuf, "EOF"); |
| 137 |
> |
fgetword(sbuf, MAXSTR, fp); |
| 138 |
> |
if ((ref = modifier(sbuf)) == OVOID) { |
| 139 |
> |
sprintf(errmsg, "(%s): bad reference \"%s\"", |
| 140 |
> |
name, sbuf); |
| 141 |
> |
objerror(objp, USER, errmsg); |
| 142 |
> |
} /* skip pass-thru aliases */ |
| 143 |
> |
while ((rfp=objptr(ref))->otype == MOD_ALIAS && |
| 144 |
> |
!rfp->oargs.nsargs & (rfp->omod != OVOID)) |
| 145 |
> |
ref = rfp->omod; |
| 146 |
> |
|
| 147 |
> |
if ((objp->omod == OALIAS) | (objp->omod == rfp->omod)) { |
| 148 |
> |
objp->omod = ref; |
| 149 |
> |
} else { |
| 150 |
> |
objp->oargs.sarg = (char **)malloc(sizeof(char *)); |
| 151 |
> |
if (objp->oargs.sarg == NULL) |
| 152 |
> |
error(SYSTEM, "out of memory in getobject"); |
| 153 |
> |
objp->oargs.nsargs = 1; |
| 154 |
> |
objp->oargs.sarg[0] = savestr(sbuf); |
| 155 |
|
} |
| 156 |
< |
objp->otype = objptr(alias)->otype; |
| 111 |
< |
bcopy(&objptr(alias)->oargs, &objp->oargs, sizeof(FUNARGS)); |
| 112 |
< |
} else if (readfargs(&objp->oargs, fp) < 0) { |
| 156 |
> |
} else if ((rval = readfargs(&objp->oargs, fp)) == 0) { |
| 157 |
|
sprintf(errmsg, "(%s): bad arguments", name); |
| 158 |
|
objerror(objp, USER, errmsg); |
| 159 |
+ |
} else if (rval < 0) { |
| 160 |
+ |
sprintf(errmsg, "(%s): error reading scene", name); |
| 161 |
+ |
error(SYSTEM, errmsg); |
| 162 |
|
} |
| 163 |
+ |
if (objp->omod == OALIAS) { |
| 164 |
+ |
sprintf(errmsg, "(%s): inappropriate use of '%s' modifier", |
| 165 |
+ |
name, ALIASMOD); |
| 166 |
+ |
objerror(objp, USER, errmsg); |
| 167 |
+ |
} |
| 168 |
|
/* initialize */ |
| 169 |
|
objp->os = NULL; |
| 118 |
– |
objp->lastrno = -1; |
| 170 |
|
|
| 171 |
|
insertobject(obj); /* add to global structure */ |
| 172 |
+ |
#undef OALIAS |
| 173 |
|
} |
| 174 |
|
|
| 175 |
|
|
| 176 |
< |
readfargs(fa, fp) /* read function arguments from stream */ |
| 177 |
< |
register FUNARGS *fa; |
| 126 |
< |
FILE *fp; |
| 176 |
> |
static void |
| 177 |
> |
optimize_objblock(int i) /* consolidate memory in object block */ |
| 178 |
|
{ |
| 179 |
< |
char sbuf[MAXSTR]; |
| 180 |
< |
int n; |
| 181 |
< |
register int i; |
| 179 |
> |
#if OBJMEMOPT |
| 180 |
> |
OBJREC *o, *co; |
| 181 |
> |
int n = 0; |
| 182 |
> |
unsigned long sargcnt = 0, iargcnt = 0, fargcnt = 0, namecnt = 0; |
| 183 |
|
|
| 184 |
< |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 185 |
< |
return(-1); |
| 186 |
< |
if (fa->nsargs = n) { |
| 187 |
< |
fa->sarg = (char **)bmalloc(n*sizeof(char *)); |
| 188 |
< |
if (fa->sarg == NULL) |
| 189 |
< |
goto memerr; |
| 190 |
< |
for (i = 0; i < fa->nsargs; i++) { |
| 191 |
< |
if (fscanf(fp, "%s", sbuf) != 1) |
| 192 |
< |
return(-1); |
| 193 |
< |
fa->sarg[i] = savestr(sbuf); |
| 184 |
> |
if (i < 0 || objblock[i] == NULL || objblock[i][OBJBLKSIZ].otype < 0) |
| 185 |
> |
return; /* invalid or already done */ |
| 186 |
> |
|
| 187 |
> |
for (o = objblock[i]+OBJBLKSIZ; o-- > objblock[i]; ) { |
| 188 |
> |
if (o->oname == NULL) /* too early to optimize? */ |
| 189 |
> |
return; |
| 190 |
> |
if (o->os != NULL) /* too late to optimize? */ |
| 191 |
> |
return; |
| 192 |
> |
n += (o->oargs.nsargs > 0) | (o->oargs.nfargs > 0); |
| 193 |
> |
sargcnt += o->oargs.nsargs; |
| 194 |
> |
fargcnt += o->oargs.nfargs; |
| 195 |
> |
#ifdef IARGS |
| 196 |
> |
iargcnt += o->oargs.niargs; |
| 197 |
> |
#endif |
| 198 |
> |
namecnt += strlen(o->oname)+1; |
| 199 |
> |
} |
| 200 |
> |
if (n < OBJBLKSIZ/10) /* never happens? */ |
| 201 |
> |
return; |
| 202 |
> |
/* prep consolidation object */ |
| 203 |
> |
co = objblock[i]+OBJBLKSIZ; |
| 204 |
> |
co->oargs.nsargs = sargcnt; |
| 205 |
> |
co->oargs.nfargs = fargcnt; |
| 206 |
> |
if ((co->oargs.nsargs != sargcnt) | (co->oargs.nfargs != fargcnt)) |
| 207 |
> |
return; /* overrun condition */ |
| 208 |
> |
|
| 209 |
> |
co->oname = (char *)malloc(sizeof(char)*namecnt); |
| 210 |
> |
co->oargs.sarg = (char **)malloc(sizeof(char *)*sargcnt); |
| 211 |
> |
co->oargs.farg = (RREAL *)malloc(sizeof(RREAL)*fargcnt); |
| 212 |
> |
if ((co->oname == NULL) | (co->oargs.sarg == NULL) | |
| 213 |
> |
(co->oargs.farg == NULL)) { |
| 214 |
> |
free(co->oname); |
| 215 |
> |
free(co->oargs.sarg); free(co->oargs.farg); |
| 216 |
> |
memset(co, 0, sizeof(OBJREC)); |
| 217 |
> |
return; /* insufficient memory */ |
| 218 |
> |
} |
| 219 |
> |
#ifdef IARGS |
| 220 |
> |
co->oargs.niargs = iargcnt; |
| 221 |
> |
co->oargs.iarg = (long *)malloc(sizeof(long)*iargcnt); |
| 222 |
> |
if (co->oargs.iarg == NULL) { |
| 223 |
> |
free(co->oname); |
| 224 |
> |
free(co->oargs.sarg); free(co->oargs.farg); |
| 225 |
> |
memset(co, 0, sizeof(OBJREC)); |
| 226 |
> |
return; /* insufficient memory */ |
| 227 |
> |
} |
| 228 |
> |
iargcnt = 0; |
| 229 |
> |
#endif |
| 230 |
> |
namecnt = sargcnt = fargcnt = 0; |
| 231 |
> |
for (o = objblock[i]+OBJBLKSIZ; o-- > objblock[i]; ) { |
| 232 |
> |
n = strlen(o->oname)+1; |
| 233 |
> |
memcpy(co->oname + namecnt, o->oname, n); |
| 234 |
> |
freeqstr(o->oname); |
| 235 |
> |
o->oname = co->oname + namecnt; |
| 236 |
> |
namecnt += n; |
| 237 |
> |
if (o->oargs.nsargs) { |
| 238 |
> |
memcpy(co->oargs.sarg+sargcnt, o->oargs.sarg, |
| 239 |
> |
sizeof(char *)*o->oargs.nsargs); |
| 240 |
> |
free(o->oargs.sarg); |
| 241 |
> |
o->oargs.sarg = co->oargs.sarg + sargcnt; |
| 242 |
> |
sargcnt += o->oargs.nsargs; |
| 243 |
|
} |
| 244 |
< |
} else |
| 245 |
< |
fa->sarg = NULL; |
| 246 |
< |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 247 |
< |
return(-1); |
| 244 |
> |
if (o->oargs.nfargs) { |
| 245 |
> |
memcpy(co->oargs.farg+fargcnt, o->oargs.farg, |
| 246 |
> |
sizeof(RREAL)*o->oargs.nfargs); |
| 247 |
> |
free(o->oargs.farg); |
| 248 |
> |
o->oargs.farg = co->oargs.farg + fargcnt; |
| 249 |
> |
fargcnt += o->oargs.nfargs; |
| 250 |
> |
} |
| 251 |
|
#ifdef IARGS |
| 252 |
< |
if (fa->niargs = n) { |
| 253 |
< |
fa->iarg = (long *)bmalloc(n*sizeof(int)); |
| 254 |
< |
if (fa->iarg == NULL) |
| 255 |
< |
goto memerr; |
| 256 |
< |
for (i = 0; i < n; i++) |
| 257 |
< |
if (fscanf(fp, "%ld", &fa->iarg[i]) != 1) |
| 258 |
< |
return(-1); |
| 155 |
< |
} else |
| 156 |
< |
fa->iarg = NULL; |
| 157 |
< |
#else |
| 158 |
< |
if (n != 0) |
| 159 |
< |
return(-1); |
| 252 |
> |
if (o->oargs.niargs) { |
| 253 |
> |
memcpy(co->oargs.iarg+iargcnt, o->oargs.iarg, |
| 254 |
> |
sizeof(long)*o->oargs.niargs); |
| 255 |
> |
free(o->oargs.iarg); |
| 256 |
> |
o->oargs.iarg = co->oargs.iarg + iargcnt; |
| 257 |
> |
iargcnt += o->oargs.niargs; |
| 258 |
> |
} |
| 259 |
|
#endif |
| 260 |
< |
if (fscanf(fp, "%d", &n) != 1 || n < 0) |
| 261 |
< |
return(-1); |
| 262 |
< |
if (fa->nfargs = n) { |
| 164 |
< |
fa->farg = (double *)bmalloc(n*sizeof(double)); |
| 165 |
< |
if (fa->farg == NULL) |
| 166 |
< |
goto memerr; |
| 167 |
< |
for (i = 0; i < n; i++) |
| 168 |
< |
if (fscanf(fp, "%lf", &fa->farg[i]) != 1) |
| 169 |
< |
return(-1); |
| 170 |
< |
} else |
| 171 |
< |
fa->farg = NULL; |
| 172 |
< |
return(0); |
| 173 |
< |
memerr: |
| 174 |
< |
error(SYSTEM, "out of memory in readfargs"); |
| 260 |
> |
} |
| 261 |
> |
co->otype = -1; /* flag for optimized block */ |
| 262 |
> |
#endif |
| 263 |
|
} |
| 264 |
|
|
| 265 |
|
|
| 266 |
< |
int |
| 267 |
< |
newobject() /* get a new object */ |
| 266 |
> |
OBJECT |
| 267 |
> |
newobject(void) /* get a new object */ |
| 268 |
|
{ |
| 269 |
< |
register int i; |
| 269 |
> |
int i; |
| 270 |
|
|
| 271 |
< |
if ((nobjects & 077) == 0) { /* new block */ |
| 271 |
> |
if ((nobjects & (OBJBLKSIZ-1)) == 0) { /* new block */ |
| 272 |
> |
i = nobjects >> OBJBLKSHFT; |
| 273 |
> |
optimize_objblock(i-1); /* optimize previous block */ |
| 274 |
|
errno = 0; |
| 185 |
– |
i = nobjects >> 6; |
| 275 |
|
if (i >= MAXOBJBLK) |
| 276 |
|
return(OVOID); |
| 277 |
< |
objblock[i] = (OBJREC *)malloc(0100*sizeof(OBJREC)); |
| 277 |
> |
objblock[i] = (OBJREC *)calloc(OBJBLKSIZ+OBJMEMOPT, |
| 278 |
> |
sizeof(OBJREC)); |
| 279 |
|
if (objblock[i] == NULL) |
| 280 |
|
return(OVOID); |
| 281 |
|
} |
| 282 |
|
return(nobjects++); |
| 283 |
+ |
} |
| 284 |
+ |
|
| 285 |
+ |
void |
| 286 |
+ |
freeobjects( /* free a range of objects */ |
| 287 |
+ |
int firstobj, |
| 288 |
+ |
int nobjs |
| 289 |
+ |
) |
| 290 |
+ |
{ |
| 291 |
+ |
int obj; |
| 292 |
+ |
/* check bounds */ |
| 293 |
+ |
if (firstobj < 0) |
| 294 |
+ |
return; |
| 295 |
+ |
if (nobjs <= 0) |
| 296 |
+ |
return; |
| 297 |
+ |
if (firstobj + nobjs > nobjects) |
| 298 |
+ |
return; |
| 299 |
+ |
/* clear objects */ |
| 300 |
+ |
for (obj = firstobj+nobjs; obj-- > firstobj; ) { |
| 301 |
+ |
OBJREC *o = objptr(obj); |
| 302 |
+ |
free_os(o); /* free client memory */ |
| 303 |
+ |
if (!OBJMEMOPT || !objblock[obj>>OBJBLKSHFT][OBJBLKSIZ].otype) { |
| 304 |
+ |
freeqstr(o->oname); |
| 305 |
+ |
freefargs(&o->oargs); |
| 306 |
+ |
} |
| 307 |
+ |
memset(o, 0, sizeof(OBJREC)); |
| 308 |
+ |
} |
| 309 |
+ |
/* free objects off end */ |
| 310 |
+ |
for (obj = nobjects; obj-- > 0; ) |
| 311 |
+ |
if (objptr(obj)->oname != NULL) |
| 312 |
+ |
break; |
| 313 |
+ |
if (++obj >= nobjects) |
| 314 |
+ |
return; |
| 315 |
+ |
while (nobjects > obj) /* free empty end blocks */ |
| 316 |
+ |
if ((--nobjects & (OBJBLKSIZ-1)) == 0) { |
| 317 |
+ |
int i = nobjects >> OBJBLKSHFT; |
| 318 |
+ |
/* consolidated block? */ |
| 319 |
+ |
if (OBJMEMOPT && objblock[i][OBJBLKSIZ].otype < 0) { |
| 320 |
+ |
free(objblock[i][OBJBLKSIZ].oname); |
| 321 |
+ |
freefargs(&objblock[i][OBJBLKSIZ].oargs); |
| 322 |
+ |
} |
| 323 |
+ |
free(objblock[i]); |
| 324 |
+ |
objblock[i] = NULL; |
| 325 |
+ |
} |
| 326 |
+ |
truncobjndx(); /* truncate modifier look-up */ |
| 327 |
|
} |
