1 |
< |
/* Copyright (c) 1992 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1996 Regents of the University of California */ |
2 |
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|
3 |
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#ifndef lint |
4 |
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static char SCCSid[] = "$SunId$ LBL"; |
6 |
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|
7 |
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/* |
8 |
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* rpict.c - routines and variables for picture generation. |
9 |
– |
* |
10 |
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* 8/14/85 |
9 |
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*/ |
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|
11 |
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#include "ray.h" |
12 |
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|
13 |
+ |
#include <sys/types.h> |
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+ |
|
15 |
+ |
#ifndef NIX |
16 |
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#ifdef BSD |
17 |
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#include <sys/time.h> |
18 |
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#include <sys/resource.h> |
19 |
+ |
#else |
20 |
+ |
#include <sys/times.h> |
21 |
+ |
#include <unistd.h> |
22 |
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#endif |
23 |
+ |
#endif |
24 |
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|
25 |
+ |
extern time_t time(); |
26 |
+ |
|
27 |
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#include <signal.h> |
28 |
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|
29 |
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#include "view.h" |
34 |
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|
35 |
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#include "paths.h" |
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|
37 |
+ |
#define RFTEMPLATE "rfXXXXXX" |
38 |
+ |
|
39 |
+ |
#ifndef SIGCONT |
40 |
+ |
#define SIGCONT SIGIO |
41 |
+ |
#endif |
42 |
+ |
|
43 |
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int dimlist[MAXDIM]; /* sampling dimensions */ |
44 |
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int ndims = 0; /* number of sampling dimensions */ |
45 |
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int samplendx; /* sample index number */ |
58 |
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double shadcert = .5; /* shadow certainty */ |
59 |
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int directrelay = 1; /* number of source relays */ |
60 |
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int vspretest = 512; /* virtual source pretest density */ |
61 |
< |
int directinvis = 0; /* sources invisible? */ |
61 |
> |
int directvis = 1; /* sources visible? */ |
62 |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
63 |
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|
64 |
+ |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
65 |
+ |
COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
66 |
+ |
double seccg = 0.; /* global scattering eccentricity */ |
67 |
+ |
double ssampdist = 0.; /* scatter sampling distance */ |
68 |
+ |
|
69 |
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double specthresh = .15; /* specular sampling threshold */ |
70 |
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double specjitter = 1.; /* specular sampling jitter */ |
71 |
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|
72 |
+ |
int backvis = 1; /* back face visibility */ |
73 |
+ |
|
74 |
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int maxdepth = 6; /* maximum recursion depth */ |
75 |
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double minweight = 5e-3; /* minimum ray weight */ |
76 |
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|
77 |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
78 |
+ |
int ambvwt = 0; /* initial weight for ambient value */ |
79 |
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double ambacc = 0.2; /* ambient accuracy */ |
80 |
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int ambres = 32; /* ambient resolution */ |
81 |
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int ambdiv = 128; /* ambient divisions */ |
92 |
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|
93 |
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double pctdone = 0.0; /* percentage done */ |
94 |
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|
95 |
< |
long tlastrept = 0L; /* time at last report */ |
95 |
> |
time_t tlastrept = 0L; /* time at last report */ |
96 |
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|
97 |
< |
extern long time(); |
77 |
< |
extern long tstart; /* starting time */ |
97 |
> |
extern time_t tstart; /* starting time */ |
98 |
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|
99 |
< |
extern long nrays; /* number of rays traced */ |
99 |
> |
extern unsigned long nrays; /* number of rays traced */ |
100 |
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|
101 |
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#define MAXDIV 16 /* maximum sample size */ |
102 |
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|
103 |
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
104 |
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|
105 |
< |
#define RFTEMPLATE "rfXXXXXX" |
86 |
< |
#define HFTEMPLATE TEMPLATE |
105 |
> |
int hres, vres; /* resolution for this frame */ |
106 |
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|
88 |
– |
static char *hfname = NULL; /* header file name */ |
89 |
– |
static FILE *hfp = NULL; /* header file pointer */ |
90 |
– |
|
91 |
– |
static int hres, vres; /* resolution for this frame */ |
92 |
– |
|
107 |
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extern char *mktemp(); |
108 |
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|
109 |
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double pixvalue(); |
110 |
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|
111 |
+ |
#ifdef NIX |
112 |
+ |
#define file_exists(f) (access(f,F_OK)==0) |
113 |
+ |
#else |
114 |
+ |
#include <sys/types.h> |
115 |
+ |
#include <sys/stat.h> |
116 |
+ |
int |
117 |
+ |
file_exists(fname) /* ordinary file exists? */ |
118 |
+ |
char *fname; |
119 |
+ |
{ |
120 |
+ |
struct stat sbuf; |
121 |
+ |
if (stat(fname, &sbuf) < 0) return(0); |
122 |
+ |
return((sbuf.st_mode & S_IFREG) != 0); |
123 |
+ |
} |
124 |
+ |
#endif |
125 |
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|
126 |
+ |
|
127 |
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quit(code) /* quit program */ |
128 |
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int code; |
129 |
|
{ |
130 |
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if (code) /* report status */ |
131 |
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report(); |
132 |
< |
if (hfname != NULL) { /* delete header file */ |
133 |
< |
if (hfp != NULL) |
105 |
< |
fclose(hfp); |
106 |
< |
unlink(hfname); |
107 |
< |
} |
132 |
> |
headclean(); /* delete header file */ |
133 |
> |
pfclean(); /* clean up persist files */ |
134 |
|
exit(code); |
135 |
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} |
136 |
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|
137 |
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|
138 |
< |
#ifdef BSD |
138 |
> |
#ifndef NIX |
139 |
|
report() /* report progress */ |
140 |
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{ |
141 |
+ |
extern char *myhostname(); |
142 |
+ |
double u, s; |
143 |
+ |
#ifdef BSD |
144 |
|
struct rusage rubuf; |
145 |
< |
double t; |
145 |
> |
#else |
146 |
> |
struct tms tbuf; |
147 |
> |
double period; |
148 |
> |
#endif |
149 |
|
|
150 |
+ |
tlastrept = time((time_t *)NULL); |
151 |
+ |
#ifdef BSD |
152 |
|
getrusage(RUSAGE_SELF, &rubuf); |
153 |
< |
t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
154 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
153 |
> |
u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
154 |
> |
s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
155 |
|
getrusage(RUSAGE_CHILDREN, &rubuf); |
156 |
< |
t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
157 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
156 |
> |
u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
157 |
> |
s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
158 |
> |
#else |
159 |
> |
times(&tbuf); |
160 |
> |
#ifdef _SC_CLK_TCK |
161 |
> |
period = 1.0 / sysconf(_SC_CLK_TCK); |
162 |
> |
#else |
163 |
> |
period = 1.0 / 60.0; |
164 |
> |
#endif |
165 |
> |
u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; |
166 |
> |
s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; |
167 |
> |
#endif |
168 |
|
|
169 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
170 |
< |
nrays, pctdone, t/3600.0); |
169 |
> |
sprintf(errmsg, |
170 |
> |
"%lu rays, %4.2f%% after %.3fu %.3fs %.3fr hours on %s\n", |
171 |
> |
nrays, pctdone, u/3600., s/3600., |
172 |
> |
(tlastrept-tstart)/3600., myhostname()); |
173 |
|
eputs(errmsg); |
174 |
< |
tlastrept = time((long *)0); |
174 |
> |
#ifndef BSD |
175 |
> |
signal(SIGCONT, report); |
176 |
> |
#endif |
177 |
|
} |
178 |
|
#else |
179 |
|
report() /* report progress */ |
180 |
|
{ |
181 |
< |
tlastrept = time((long *)0); |
182 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n", |
181 |
> |
tlastrept = time((time_t *)NULL); |
182 |
> |
sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", |
183 |
|
nrays, pctdone, (tlastrept-tstart)/3600.0); |
184 |
|
eputs(errmsg); |
137 |
– |
signal(SIGALRM, report); |
185 |
|
} |
186 |
|
#endif |
187 |
|
|
188 |
|
|
142 |
– |
openheader() /* save standard output to header file */ |
143 |
– |
{ |
144 |
– |
hfname = mktemp(HFTEMPLATE); |
145 |
– |
if (freopen(hfname, "w", stdout) == NULL) { |
146 |
– |
sprintf(errmsg, "cannot open header file \"%s\"", hfname); |
147 |
– |
error(SYSTEM, errmsg); |
148 |
– |
} |
149 |
– |
} |
150 |
– |
|
151 |
– |
|
152 |
– |
dupheader() /* repeat header on standard output */ |
153 |
– |
{ |
154 |
– |
register int c; |
155 |
– |
|
156 |
– |
if (hfp == NULL) { |
157 |
– |
if ((hfp = fopen(hfname, "r")) == NULL) |
158 |
– |
error(SYSTEM, "error reopening header file"); |
159 |
– |
#ifdef MSDOS |
160 |
– |
setmode(fileno(hfp), O_BINARY); |
161 |
– |
#endif |
162 |
– |
} else if (fseek(hfp, 0L, 0) < 0) |
163 |
– |
error(SYSTEM, "seek error on header file"); |
164 |
– |
while ((c = getc(hfp)) != EOF) |
165 |
– |
putchar(c); |
166 |
– |
} |
167 |
– |
|
168 |
– |
|
189 |
|
rpict(seq, pout, zout, prvr) /* generate image(s) */ |
190 |
|
int seq; |
191 |
|
char *pout, *zout, *prvr; |
201 |
|
* sequenced file naming. |
202 |
|
*/ |
203 |
|
{ |
204 |
< |
extern char *rindex(), *strncpy(), *strcat(); |
204 |
> |
extern char *rindex(), *strncpy(), *strcat(), *strcpy(); |
205 |
|
char fbuf[128], fbuf2[128]; |
206 |
+ |
int npicts; |
207 |
|
register char *cp; |
208 |
|
RESOLU rs; |
209 |
|
double pa; |
240 |
|
cp--; |
241 |
|
strcpy(cp, RFTEMPLATE); |
242 |
|
prvr = mktemp(fbuf2); |
243 |
< |
if (rename(fbuf, prvr) < 0 && errno != ENOENT) { |
244 |
< |
sprintf(errmsg, |
243 |
> |
if (rename(fbuf, prvr) < 0) |
244 |
> |
if (errno == ENOENT) { /* ghost file */ |
245 |
> |
sprintf(errmsg, |
246 |
> |
"new output file \"%s\"", |
247 |
> |
fbuf); |
248 |
> |
error(WARNING, errmsg); |
249 |
> |
prvr = NULL; |
250 |
> |
} else { /* serious error */ |
251 |
> |
sprintf(errmsg, |
252 |
|
"cannot rename \"%s\" to \"%s\"", |
253 |
|
fbuf, prvr); |
254 |
< |
error(SYSTEM, errmsg); |
255 |
< |
} |
254 |
> |
error(SYSTEM, errmsg); |
255 |
> |
} |
256 |
|
} |
257 |
|
} |
258 |
< |
/* render sequence */ |
258 |
> |
npicts = 0; /* render sequence */ |
259 |
|
do { |
260 |
|
if (seq && nextview(stdin) == EOF) |
261 |
|
break; |
262 |
+ |
pctdone = 0.0; |
263 |
|
if (pout != NULL) { |
264 |
|
sprintf(fbuf, pout, seq); |
265 |
+ |
if (file_exists(fbuf)) { |
266 |
+ |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
267 |
+ |
sprintf(errmsg, |
268 |
+ |
"output file \"%s\" exists", |
269 |
+ |
fbuf); |
270 |
+ |
error(USER, errmsg); |
271 |
+ |
} |
272 |
+ |
continue; /* don't clobber */ |
273 |
+ |
} |
274 |
|
if (freopen(fbuf, "w", stdout) == NULL) { |
275 |
|
sprintf(errmsg, |
276 |
|
"cannot open output file \"%s\"", fbuf); |
318 |
|
cp = NULL; |
319 |
|
render(cp, prvr); |
320 |
|
prvr = NULL; |
321 |
+ |
npicts++; |
322 |
|
} while (seq++); |
323 |
+ |
/* check that we did something */ |
324 |
+ |
if (npicts == 0) |
325 |
+ |
error(WARNING, "no output produced"); |
326 |
|
} |
327 |
|
|
328 |
|
|
368 |
|
sampdens[i] = hstep; |
369 |
|
} else |
370 |
|
sampdens = NULL; |
371 |
< |
/* open z file */ |
371 |
> |
/* open z-file */ |
372 |
|
if (zfile != NULL) { |
373 |
|
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
374 |
< |
sprintf(errmsg, "cannot open z file \"%s\"", zfile); |
374 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
375 |
|
error(SYSTEM, errmsg); |
376 |
|
} |
377 |
|
#ifdef MSDOS |
391 |
|
fprtresolu(hres, vres, stdout); |
392 |
|
/* recover file and compute first */ |
393 |
|
i = salvage(oldfile); |
394 |
+ |
if (i >= vres) |
395 |
+ |
goto alldone; |
396 |
|
if (zfd != -1 && i > 0 && |
397 |
|
lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) |
398 |
< |
error(SYSTEM, "z file seek error in render"); |
398 |
> |
error(SYSTEM, "z-file seek error in render"); |
399 |
|
pctdone = 100.0*i/vres; |
400 |
|
if (ralrm > 0) /* report init stats */ |
401 |
|
report(); |
402 |
|
#ifndef BSD |
403 |
|
else |
404 |
|
#endif |
405 |
< |
signal(SIGALRM, report); |
406 |
< |
ypos = vres-1 - i; |
405 |
> |
signal(SIGCONT, report); |
406 |
> |
ypos = vres-1 - i; /* initialize sampling */ |
407 |
> |
if (directvis) |
408 |
> |
init_drawsources(psample); |
409 |
|
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
410 |
|
/* compute scanlines */ |
411 |
|
for (ypos -= ystep; ypos > -ystep; ypos -= ystep) { |
425 |
|
hres, ypos, hstep); |
426 |
|
/* fill bar */ |
427 |
|
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
428 |
+ |
if (directvis) /* add bitty sources */ |
429 |
+ |
drawsources(scanbar, zbar, 0, hres, ypos, ystep); |
430 |
|
/* write it out */ |
431 |
|
#ifndef BSD |
432 |
< |
signal(SIGALRM, SIG_IGN); /* don't interrupt writes */ |
432 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
433 |
|
#endif |
434 |
|
for (i = ystep; i > 0; i--) { |
435 |
|
if (zfd != -1 && write(zfd, (char *)zbar[i], |
443 |
|
goto writerr; |
444 |
|
/* record progress */ |
445 |
|
pctdone = 100.0*(vres-1-ypos)/vres; |
446 |
< |
if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) |
446 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
447 |
|
report(); |
448 |
|
#ifndef BSD |
449 |
|
else |
450 |
< |
signal(SIGALRM, report); |
450 |
> |
signal(SIGCONT, report); |
451 |
|
#endif |
452 |
|
} |
453 |
|
/* clean up */ |
454 |
< |
signal(SIGALRM, SIG_IGN); |
455 |
< |
if (zfd != -1) { |
408 |
< |
if (write(zfd, (char *)zbar[0], hres*sizeof(float)) |
454 |
> |
signal(SIGCONT, SIG_IGN); |
455 |
> |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
456 |
|
< hres*sizeof(float)) |
457 |
< |
goto writerr; |
457 |
> |
goto writerr; |
458 |
> |
fwritescan(scanbar[0], hres, stdout); |
459 |
> |
if (fflush(stdout) == EOF) |
460 |
> |
goto writerr; |
461 |
> |
alldone: |
462 |
> |
if (zfd != -1) { |
463 |
|
if (close(zfd) == -1) |
464 |
|
goto writerr; |
465 |
|
for (i = 0; i <= psample; i++) |
466 |
|
free((char *)zbar[i]); |
467 |
|
} |
416 |
– |
fwritescan(scanbar[0], hres, stdout); |
417 |
– |
if (fflush(stdout) == EOF) |
418 |
– |
goto writerr; |
468 |
|
for (i = 0; i <= psample; i++) |
469 |
|
free((char *)scanbar[i]); |
470 |
|
if (sampdens != NULL) |
472 |
|
pctdone = 100.0; |
473 |
|
if (ralrm > 0) |
474 |
|
report(); |
475 |
+ |
signal(SIGCONT, SIG_DFL); |
476 |
|
return; |
477 |
|
writerr: |
478 |
|
error(SYSTEM, "write error in render"); |
491 |
|
int bl = xstep, b = xstep; |
492 |
|
double z; |
493 |
|
register int i; |
494 |
< |
|
494 |
> |
|
495 |
|
z = pixvalue(scanline[0], 0, y); |
496 |
|
if (zline) zline[0] = z; |
497 |
|
/* zig-zag start for quincunx pattern */ |
507 |
|
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
508 |
|
else |
509 |
|
b = fillsample(scanline+i-xstep, |
510 |
< |
zline ? zline+i-xstep : NULL, |
510 |
> |
zline ? zline+i-xstep : (float *)NULL, |
511 |
|
i-xstep, y, xstep, 0, b/2); |
512 |
|
if (sd) *sd++ = nc & 1 ? bl : b; |
513 |
|
bl = b; |
525 |
|
float zline[MAXDIV+1]; |
526 |
|
int b = ysize; |
527 |
|
register int i, j; |
528 |
< |
|
528 |
> |
|
529 |
|
for (i = 0; i < xres; i++) { |
480 |
– |
|
530 |
|
copycolor(vline[0], scanbar[0][i]); |
531 |
|
copycolor(vline[ysize], scanbar[ysize][i]); |
532 |
|
if (zbar[0]) { |
533 |
|
zline[0] = zbar[0][i]; |
534 |
|
zline[ysize] = zbar[ysize][i]; |
535 |
|
} |
536 |
< |
|
488 |
< |
b = fillsample(vline, zbar[0] ? zline : NULL, |
536 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
537 |
|
i, y, 0, ysize, b/2); |
538 |
< |
|
538 |
> |
|
539 |
|
for (j = 1; j < ysize; j++) |
540 |
|
copycolor(scanbar[j][i], vline[j]); |
541 |
|
if (zbar[0]) |
558 |
|
COLOR ctmp; |
559 |
|
int ncut; |
560 |
|
register int len; |
561 |
< |
|
561 |
> |
|
562 |
|
if (xlen > 0) /* x or y length is zero */ |
563 |
|
len = xlen; |
564 |
|
else |
565 |
|
len = ylen; |
566 |
< |
|
566 |
> |
|
567 |
|
if (len <= 1) /* limit recursion */ |
568 |
|
return(0); |
569 |
< |
|
570 |
< |
if (b > 0 |
571 |
< |
|| (zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
569 |
> |
|
570 |
> |
if (b > 0 || |
571 |
> |
(zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
572 |
|
|| bigdiff(colline[0], colline[len], maxdiff)) { |
573 |
< |
|
573 |
> |
|
574 |
|
z = pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
575 |
|
if (zline) zline[len>>1] = z; |
576 |
|
ncut = 1; |
529 |
– |
|
577 |
|
} else { /* interpolate */ |
531 |
– |
|
578 |
|
copycolor(colline[len>>1], colline[len]); |
579 |
|
ratio = (double)(len>>1) / len; |
580 |
|
scalecolor(colline[len>>1], ratio); |
588 |
|
} |
589 |
|
/* recurse */ |
590 |
|
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
591 |
< |
|
592 |
< |
ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, |
591 |
> |
|
592 |
> |
ncut += fillsample(colline+(len>>1), |
593 |
> |
zline ? zline+(len>>1) : (float *)NULL, |
594 |
|
x+(xlen>>1), y+(ylen>>1), |
595 |
|
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
596 |
|
|
605 |
|
{ |
606 |
|
static RAY thisray; |
607 |
|
|
608 |
< |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
609 |
< |
(x+pixjitter())/hres, (y+pixjitter())/vres) < 0) { |
608 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, &ourview, |
609 |
> |
(x+pixjitter())/hres, (y+pixjitter())/vres)) < -FTINY) { |
610 |
|
setcolor(col, 0.0, 0.0, 0.0); |
611 |
|
return(0.0); |
612 |
|
} |
618 |
|
rayvalue(&thisray); /* trace ray */ |
619 |
|
|
620 |
|
copycolor(col, thisray.rcol); /* return color */ |
621 |
< |
|
621 |
> |
|
622 |
|
return(thisray.rt); /* return distance */ |
623 |
|
} |
624 |
|
|
632 |
|
int x, y; |
633 |
|
|
634 |
|
if (oldfile == NULL) |
635 |
< |
return(0); |
636 |
< |
|
635 |
> |
goto gotzip; |
636 |
> |
|
637 |
|
if ((fp = fopen(oldfile, "r")) == NULL) { |
638 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
639 |
|
error(WARNING, errmsg); |
640 |
< |
return(0); |
640 |
> |
goto gotzip; |
641 |
|
} |
642 |
|
#ifdef MSDOS |
643 |
|
setmode(fileno(fp), O_BINARY); |
646 |
|
getheader(fp, NULL, NULL); |
647 |
|
/* get picture size */ |
648 |
|
if (!fscnresolu(&x, &y, fp)) { |
649 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
649 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
650 |
> |
oldfile); |
651 |
|
error(WARNING, errmsg); |
652 |
|
fclose(fp); |
653 |
< |
return(0); |
653 |
> |
goto gotzip; |
654 |
|
} |
655 |
|
|
656 |
|
if (x != hres || y != vres) { |
674 |
|
fclose(fp); |
675 |
|
unlink(oldfile); |
676 |
|
return(y); |
677 |
+ |
gotzip: |
678 |
+ |
if (fflush(stdout) == EOF) |
679 |
+ |
error(SYSTEM, "error writing picture header"); |
680 |
+ |
return(0); |
681 |
|
writerr: |
682 |
|
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
683 |
|
error(SYSTEM, errmsg); |