1 |
< |
/* Copyright (c) 1992 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1995 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"; |
12 |
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|
13 |
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#include "ray.h" |
14 |
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|
15 |
+ |
#include <sys/types.h> |
16 |
+ |
|
17 |
+ |
#ifndef NIX |
18 |
|
#ifdef BSD |
19 |
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#include <sys/time.h> |
20 |
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#include <sys/resource.h> |
21 |
+ |
#else |
22 |
+ |
#include <sys/times.h> |
23 |
+ |
#include <unistd.h> |
24 |
|
#endif |
25 |
+ |
#endif |
26 |
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|
27 |
+ |
extern time_t time(); |
28 |
+ |
|
29 |
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#include <signal.h> |
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|
31 |
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#include "view.h" |
36 |
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|
37 |
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#include "paths.h" |
38 |
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|
39 |
+ |
#define RFTEMPLATE "rfXXXXXX" |
40 |
+ |
|
41 |
+ |
#ifndef SIGCONT |
42 |
+ |
#define SIGCONT SIGIO |
43 |
+ |
#endif |
44 |
+ |
|
45 |
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int dimlist[MAXDIM]; /* sampling dimensions */ |
46 |
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int ndims = 0; /* number of sampling dimensions */ |
47 |
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int samplendx; /* sample index number */ |
60 |
|
double shadcert = .5; /* shadow certainty */ |
61 |
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int directrelay = 1; /* number of source relays */ |
62 |
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int vspretest = 512; /* virtual source pretest density */ |
63 |
< |
int directinvis = 0; /* sources invisible? */ |
63 |
> |
int directvis = 1; /* sources visible? */ |
64 |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
65 |
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|
66 |
+ |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
67 |
+ |
double salbedo = 0.; /* global scattering albedo */ |
68 |
+ |
double seccg = 0.; /* global scattering eccentricity */ |
69 |
+ |
double ssampdist = 0.; /* scatter sampling distance */ |
70 |
+ |
|
71 |
|
double specthresh = .15; /* specular sampling threshold */ |
72 |
|
double specjitter = 1.; /* specular sampling jitter */ |
73 |
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|
74 |
+ |
int backvis = 1; /* back face visibility */ |
75 |
+ |
|
76 |
|
int maxdepth = 6; /* maximum recursion depth */ |
77 |
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double minweight = 5e-3; /* minimum ray weight */ |
78 |
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|
93 |
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|
94 |
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double pctdone = 0.0; /* percentage done */ |
95 |
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|
96 |
< |
long tlastrept = 0L; /* time at last report */ |
96 |
> |
time_t tlastrept = 0L; /* time at last report */ |
97 |
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|
98 |
< |
extern long time(); |
77 |
< |
extern long tstart; /* starting time */ |
98 |
> |
extern time_t tstart; /* starting time */ |
99 |
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|
100 |
< |
extern long nrays; /* number of rays traced */ |
100 |
> |
extern unsigned long nrays; /* number of rays traced */ |
101 |
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|
102 |
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#define MAXDIV 16 /* maximum sample size */ |
103 |
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|
104 |
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
105 |
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|
85 |
– |
#define RFTEMPLATE "rfXXXXXX" |
86 |
– |
#define HFTEMPLATE TEMPLATE |
87 |
– |
|
88 |
– |
static char *hfname = NULL; /* header file name */ |
89 |
– |
static FILE *hfp = NULL; /* header file pointer */ |
90 |
– |
|
106 |
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static int hres, vres; /* resolution for this frame */ |
107 |
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|
108 |
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extern char *mktemp(); |
109 |
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|
110 |
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double pixvalue(); |
111 |
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|
112 |
+ |
#ifdef NIX |
113 |
+ |
#define file_exists(f) (access(f,F_OK)==0) |
114 |
+ |
#else |
115 |
+ |
#include <sys/types.h> |
116 |
+ |
#include <sys/stat.h> |
117 |
+ |
int |
118 |
+ |
file_exists(fname) /* ordinary file exists? */ |
119 |
+ |
char *fname; |
120 |
+ |
{ |
121 |
+ |
struct stat sbuf; |
122 |
+ |
if (stat(fname, &sbuf) < 0) return(0); |
123 |
+ |
return((sbuf.st_mode & S_IFREG) != 0); |
124 |
+ |
} |
125 |
+ |
#endif |
126 |
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|
127 |
+ |
|
128 |
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quit(code) /* quit program */ |
129 |
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int code; |
130 |
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{ |
131 |
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if (code) /* report status */ |
132 |
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report(); |
133 |
< |
if (hfname != NULL) { /* delete header file */ |
134 |
< |
if (hfp != NULL) |
105 |
< |
fclose(hfp); |
106 |
< |
unlink(hfname); |
107 |
< |
} |
133 |
> |
headclean(); /* delete header file */ |
134 |
> |
pfclean(); /* clean up persist files */ |
135 |
|
exit(code); |
136 |
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} |
137 |
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|
138 |
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|
139 |
< |
#ifdef BSD |
139 |
> |
#ifndef NIX |
140 |
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report() /* report progress */ |
141 |
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{ |
142 |
+ |
extern char *myhostname(); |
143 |
+ |
double u, s; |
144 |
+ |
#ifdef BSD |
145 |
|
struct rusage rubuf; |
146 |
< |
double t; |
146 |
> |
#else |
147 |
> |
struct tms tbuf; |
148 |
> |
double period; |
149 |
> |
#endif |
150 |
|
|
151 |
+ |
tlastrept = time((time_t *)NULL); |
152 |
+ |
#ifdef BSD |
153 |
|
getrusage(RUSAGE_SELF, &rubuf); |
154 |
< |
t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
155 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
154 |
> |
u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
155 |
> |
s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
156 |
|
getrusage(RUSAGE_CHILDREN, &rubuf); |
157 |
< |
t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
158 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
157 |
> |
u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
158 |
> |
s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
159 |
> |
#else |
160 |
> |
times(&tbuf); |
161 |
> |
#ifdef _SC_CLK_TCK |
162 |
> |
period = 1.0 / sysconf(_SC_CLK_TCK); |
163 |
> |
#else |
164 |
> |
period = 1.0 / 60.0; |
165 |
> |
#endif |
166 |
> |
u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; |
167 |
> |
s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; |
168 |
> |
#endif |
169 |
|
|
170 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
171 |
< |
nrays, pctdone, t/3600.0); |
170 |
> |
sprintf(errmsg, |
171 |
> |
"%lu rays, %4.2f%% after %.3fu %.3fs %.3fr hours on %s\n", |
172 |
> |
nrays, pctdone, u/3600., s/3600., |
173 |
> |
(tlastrept-tstart)/3600., myhostname()); |
174 |
|
eputs(errmsg); |
175 |
< |
tlastrept = time((long *)0); |
175 |
> |
#ifndef BSD |
176 |
> |
signal(SIGCONT, report); |
177 |
> |
#endif |
178 |
|
} |
179 |
|
#else |
180 |
|
report() /* report progress */ |
181 |
|
{ |
182 |
< |
tlastrept = time((long *)0); |
183 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n", |
182 |
> |
tlastrept = time((time_t *)NULL); |
183 |
> |
sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", |
184 |
|
nrays, pctdone, (tlastrept-tstart)/3600.0); |
185 |
|
eputs(errmsg); |
137 |
– |
signal(SIGALRM, report); |
186 |
|
} |
187 |
|
#endif |
188 |
|
|
189 |
|
|
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 |
– |
|
190 |
|
rpict(seq, pout, zout, prvr) /* generate image(s) */ |
191 |
|
int seq; |
192 |
|
char *pout, *zout, *prvr; |
202 |
|
* sequenced file naming. |
203 |
|
*/ |
204 |
|
{ |
205 |
< |
extern char *rindex(), *strncpy(), *strcat(); |
205 |
> |
extern char *rindex(), *strncpy(), *strcat(), *strcpy(); |
206 |
|
char fbuf[128], fbuf2[128]; |
207 |
+ |
int npicts; |
208 |
|
register char *cp; |
209 |
|
RESOLU rs; |
210 |
|
double pa; |
241 |
|
cp--; |
242 |
|
strcpy(cp, RFTEMPLATE); |
243 |
|
prvr = mktemp(fbuf2); |
244 |
< |
if (rename(fbuf, prvr) < 0 && errno != ENOENT) { |
245 |
< |
sprintf(errmsg, |
244 |
> |
if (rename(fbuf, prvr) < 0) |
245 |
> |
if (errno == ENOENT) { /* ghost file */ |
246 |
> |
sprintf(errmsg, |
247 |
> |
"new output file \"%s\"", |
248 |
> |
fbuf); |
249 |
> |
error(WARNING, errmsg); |
250 |
> |
prvr = NULL; |
251 |
> |
} else { /* serious error */ |
252 |
> |
sprintf(errmsg, |
253 |
|
"cannot rename \"%s\" to \"%s\"", |
254 |
|
fbuf, prvr); |
255 |
< |
error(SYSTEM, errmsg); |
256 |
< |
} |
255 |
> |
error(SYSTEM, errmsg); |
256 |
> |
} |
257 |
|
} |
258 |
|
} |
259 |
< |
/* render sequence */ |
259 |
> |
npicts = 0; /* render sequence */ |
260 |
|
do { |
261 |
|
if (seq && nextview(stdin) == EOF) |
262 |
|
break; |
263 |
+ |
pctdone = 0.0; |
264 |
|
if (pout != NULL) { |
265 |
|
sprintf(fbuf, pout, seq); |
266 |
+ |
if (file_exists(fbuf)) { |
267 |
+ |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
268 |
+ |
sprintf(errmsg, |
269 |
+ |
"output file \"%s\" exists", |
270 |
+ |
fbuf); |
271 |
+ |
error(USER, errmsg); |
272 |
+ |
} |
273 |
+ |
continue; /* don't clobber */ |
274 |
+ |
} |
275 |
|
if (freopen(fbuf, "w", stdout) == NULL) { |
276 |
|
sprintf(errmsg, |
277 |
|
"cannot open output file \"%s\"", fbuf); |
319 |
|
cp = NULL; |
320 |
|
render(cp, prvr); |
321 |
|
prvr = NULL; |
322 |
+ |
npicts++; |
323 |
|
} while (seq++); |
324 |
+ |
/* check that we did something */ |
325 |
+ |
if (npicts == 0) |
326 |
+ |
error(WARNING, "no output produced"); |
327 |
|
} |
328 |
|
|
329 |
|
|
369 |
|
sampdens[i] = hstep; |
370 |
|
} else |
371 |
|
sampdens = NULL; |
372 |
< |
/* open z file */ |
372 |
> |
/* open z-file */ |
373 |
|
if (zfile != NULL) { |
374 |
|
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
375 |
< |
sprintf(errmsg, "cannot open z file \"%s\"", zfile); |
375 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
376 |
|
error(SYSTEM, errmsg); |
377 |
|
} |
378 |
|
#ifdef MSDOS |
392 |
|
fprtresolu(hres, vres, stdout); |
393 |
|
/* recover file and compute first */ |
394 |
|
i = salvage(oldfile); |
395 |
+ |
if (i >= vres) |
396 |
+ |
goto alldone; |
397 |
|
if (zfd != -1 && i > 0 && |
398 |
|
lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) |
399 |
< |
error(SYSTEM, "z file seek error in render"); |
399 |
> |
error(SYSTEM, "z-file seek error in render"); |
400 |
|
pctdone = 100.0*i/vres; |
401 |
|
if (ralrm > 0) /* report init stats */ |
402 |
|
report(); |
403 |
|
#ifndef BSD |
404 |
|
else |
405 |
|
#endif |
406 |
< |
signal(SIGALRM, report); |
406 |
> |
signal(SIGCONT, report); |
407 |
|
ypos = vres-1 - i; |
408 |
|
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
409 |
|
/* compute scanlines */ |
426 |
|
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
427 |
|
/* write it out */ |
428 |
|
#ifndef BSD |
429 |
< |
signal(SIGALRM, SIG_IGN); /* don't interrupt writes */ |
429 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
430 |
|
#endif |
431 |
|
for (i = ystep; i > 0; i--) { |
432 |
|
if (zfd != -1 && write(zfd, (char *)zbar[i], |
440 |
|
goto writerr; |
441 |
|
/* record progress */ |
442 |
|
pctdone = 100.0*(vres-1-ypos)/vres; |
443 |
< |
if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) |
443 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
444 |
|
report(); |
445 |
|
#ifndef BSD |
446 |
|
else |
447 |
< |
signal(SIGALRM, report); |
447 |
> |
signal(SIGCONT, report); |
448 |
|
#endif |
449 |
|
} |
450 |
|
/* clean up */ |
451 |
< |
signal(SIGALRM, SIG_IGN); |
452 |
< |
if (zfd != -1) { |
408 |
< |
if (write(zfd, (char *)zbar[0], hres*sizeof(float)) |
451 |
> |
signal(SIGCONT, SIG_IGN); |
452 |
> |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
453 |
|
< hres*sizeof(float)) |
454 |
< |
goto writerr; |
454 |
> |
goto writerr; |
455 |
> |
fwritescan(scanbar[0], hres, stdout); |
456 |
> |
if (fflush(stdout) == EOF) |
457 |
> |
goto writerr; |
458 |
> |
alldone: |
459 |
> |
if (zfd != -1) { |
460 |
|
if (close(zfd) == -1) |
461 |
|
goto writerr; |
462 |
|
for (i = 0; i <= psample; i++) |
463 |
|
free((char *)zbar[i]); |
464 |
|
} |
416 |
– |
fwritescan(scanbar[0], hres, stdout); |
417 |
– |
if (fflush(stdout) == EOF) |
418 |
– |
goto writerr; |
465 |
|
for (i = 0; i <= psample; i++) |
466 |
|
free((char *)scanbar[i]); |
467 |
|
if (sampdens != NULL) |
469 |
|
pctdone = 100.0; |
470 |
|
if (ralrm > 0) |
471 |
|
report(); |
472 |
+ |
signal(SIGCONT, SIG_DFL); |
473 |
|
return; |
474 |
|
writerr: |
475 |
|
error(SYSTEM, "write error in render"); |
504 |
|
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
505 |
|
else |
506 |
|
b = fillsample(scanline+i-xstep, |
507 |
< |
zline ? zline+i-xstep : NULL, |
507 |
> |
zline ? zline+i-xstep : (float *)NULL, |
508 |
|
i-xstep, y, xstep, 0, b/2); |
509 |
|
if (sd) *sd++ = nc & 1 ? bl : b; |
510 |
|
bl = b; |
532 |
|
zline[ysize] = zbar[ysize][i]; |
533 |
|
} |
534 |
|
|
535 |
< |
b = fillsample(vline, zbar[0] ? zline : NULL, |
535 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
536 |
|
i, y, 0, ysize, b/2); |
537 |
|
|
538 |
|
for (j = 1; j < ysize; j++) |
590 |
|
/* recurse */ |
591 |
|
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
592 |
|
|
593 |
< |
ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, |
593 |
> |
ncut += fillsample(colline+(len>>1), |
594 |
> |
zline ? zline+(len>>1) : (float *)NULL, |
595 |
|
x+(xlen>>1), y+(ylen>>1), |
596 |
|
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
597 |
|
|
606 |
|
{ |
607 |
|
static RAY thisray; |
608 |
|
|
609 |
< |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
610 |
< |
(x+pixjitter())/hres, (y+pixjitter())/vres) < 0) { |
609 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, &ourview, |
610 |
> |
(x+pixjitter())/hres, (y+pixjitter())/vres)) < -FTINY) { |
611 |
|
setcolor(col, 0.0, 0.0, 0.0); |
612 |
|
return(0.0); |
613 |
|
} |
633 |
|
int x, y; |
634 |
|
|
635 |
|
if (oldfile == NULL) |
636 |
< |
return(0); |
637 |
< |
|
636 |
> |
goto gotzip; |
637 |
> |
|
638 |
|
if ((fp = fopen(oldfile, "r")) == NULL) { |
639 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
640 |
|
error(WARNING, errmsg); |
641 |
< |
return(0); |
641 |
> |
goto gotzip; |
642 |
|
} |
643 |
|
#ifdef MSDOS |
644 |
|
setmode(fileno(fp), O_BINARY); |
645 |
|
#endif |
646 |
|
/* discard header */ |
647 |
< |
getheader(fp, NULL); |
647 |
> |
getheader(fp, NULL, NULL); |
648 |
|
/* get picture size */ |
649 |
|
if (!fscnresolu(&x, &y, fp)) { |
650 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
650 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
651 |
> |
oldfile); |
652 |
|
error(WARNING, errmsg); |
653 |
|
fclose(fp); |
654 |
< |
return(0); |
654 |
> |
goto gotzip; |
655 |
|
} |
656 |
|
|
657 |
|
if (x != hres || y != vres) { |
675 |
|
fclose(fp); |
676 |
|
unlink(oldfile); |
677 |
|
return(y); |
678 |
+ |
gotzip: |
679 |
+ |
if (fflush(stdout) == EOF) |
680 |
+ |
error(SYSTEM, "error writing picture header"); |
681 |
+ |
return(0); |
682 |
|
writerr: |
683 |
|
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
684 |
|
error(SYSTEM, errmsg); |