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RadiancePmap/rpmain.c
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rpmain.c
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#ifndef lint
static const char RCSid[] = "$Id: rpmain.c,v 2.20 2022/04/05 03:02:15 greg Exp $";
#endif
/*
* rpmain.c - main for rpict batch rendering program
*/
#include "copyright.h"
#include <time.h>
#include <signal.h>
#include "platform.h"
#include "rtprocess.h" /* getpid() */
#include "ray.h"
#include "source.h"
#include "ambient.h"
#include "random.h"
#include "paths.h"
#include "view.h"
#include "pmapray.h"
/* persistent processes define */
#ifdef F_SETLKW
#define PERSIST 1 /* normal persist */
#define PARALLEL 2 /* parallel persist */
#define PCHILD 3 /* child of normal persist */
#endif
char *progname; /* argv[0] */
char *octname; /* octree name */
char *sigerr[NSIG]; /* signal error messages */
char *shm_boundary = NULL; /* boundary of shared memory */
char *errfile = NULL; /* error output file */
extern time_t time();
extern time_t tstart; /* start time */
extern int ralrm; /* seconds between reports */
extern VIEW ourview; /* viewing parameters */
extern int hresolu; /* horizontal resolution */
extern int vresolu; /* vertical resolution */
extern double pixaspect; /* pixel aspect ratio */
extern int psample; /* pixel sample size */
extern double maxdiff; /* max. sample difference */
extern double dstrpix; /* square pixel distribution */
extern double mblur; /* motion blur parameter */
extern double dblur; /* depth-of-field blur parameter */
static void onsig(int signo);
static void sigdie(int signo, char *msg);
static void printdefaults(void);
int
main(int argc, char *argv[])
{
#define check(ol,al) if (argv[i][ol] || \
badarg(argc-i-1,argv+i+1,al)) \
goto badopt
#define check_bool(olen,var) switch (argv[i][olen]) { \
case '\0': var = !var; break; \
case 'y': case 'Y': case 't': case 'T': \
case '+': case '1': var = 1; break; \
case 'n': case 'N': case 'f': case 'F': \
case '-': case '0': var = 0; break; \
default: goto badopt; }
char *err;
char *recover = NULL;
char *outfile = NULL;
char *zfile = NULL;
int loadflags = ~IO_FILES;
int seqstart = 0;
int persist = 0;
int duped1 = -1;
int rval;
int i;
/* record start time */
tstart = time((time_t *)NULL);
/* global program name */
progname = argv[0] = fixargv0(argv[0]);
/* option city */
for (i = 1; i < argc; i++) {
/* expand arguments */
while ((rval = expandarg(&argc, &argv, i)) > 0)
;
if (rval < 0) {
sprintf(errmsg, "cannot expand '%s'", argv[i]);
error(SYSTEM, errmsg);
}
if (argv[i] == NULL || argv[i][0] != '-')
break; /* break from options */
if (!strcmp(argv[i], "-version")) {
puts(VersionID);
quit(0);
}
if (!strcmp(argv[i], "-defaults") ||
!strcmp(argv[i], "-help")) {
printdefaults();
quit(0);
}
rval = getrenderopt(argc-i, argv+i);
if (rval >= 0) {
i += rval;
continue;
}
rval = getviewopt(&ourview, argc-i, argv+i);
if (rval >= 0) {
i += rval;
continue;
}
/* rpict options */
switch (argv[i][1]) {
case 'v': /* view file */
if (argv[i][2] != 'f')
goto badopt;
check(3,"s");
rval = viewfile(argv[++i], &ourview, NULL);
if (rval < 0) {
sprintf(errmsg,
"cannot open view file \"%s\"",
argv[i]);
error(SYSTEM, errmsg);
} else if (rval == 0) {
sprintf(errmsg,
"bad view file \"%s\"",
argv[i]);
error(USER, errmsg);
}
break;
case 'p': /* pixel */
switch (argv[i][2]) {
case 's': /* sample */
check(3,"i");
psample = atoi(argv[++i]);
break;
case 't': /* threshold */
check(3,"f");
maxdiff = atof(argv[++i]);
break;
case 'j': /* jitter */
check(3,"f");
dstrpix = atof(argv[++i]);
break;
case 'a': /* aspect */
check(3,"f");
pixaspect = atof(argv[++i]);
break;
case 'm': /* motion */
check(3,"f");
mblur = atof(argv[++i]);
break;
case 'd': /* aperture */
check(3,"f");
dblur = atof(argv[++i]);
break;
default:
goto badopt;
}
break;
case 'x': /* x resolution */
check(2,"i");
hresolu = atoi(argv[++i]);
break;
case 'y': /* y resolution */
check(2,"i");
vresolu = atoi(argv[++i]);
break;
case 'S': /* slave index */
check(2,"i");
seqstart = atoi(argv[++i]);
break;
case 'o': /* output file */
check(2,"s");
outfile = argv[++i];
break;
case 'z': /* z file */
check(2,"s");
zfile = argv[++i];
break;
case 'r': /* recover file */
if (argv[i][2] == 'o') { /* +output */
check(3,"s");
outfile = argv[i+1];
} else
check(2,"s");
recover = argv[++i];
break;
case 't': /* timer */
check(2,"i");
ralrm = atoi(argv[++i]);
break;
#ifdef PERSIST
case 'P': /* persist file */
if (argv[i][2] == 'P') {
check(3,"s");
persist = PARALLEL;
} else {
check(2,"s");
persist = PERSIST;
}
persistfile(argv[++i]);
break;
#endif
case 'w': /* warnings */
rval = erract[WARNING].pf != NULL;
check_bool(2,rval);
if (rval) erract[WARNING].pf = wputs;
else erract[WARNING].pf = NULL;
break;
case 'e': /* error file */
check(2,"s");
errfile = argv[++i];
break;
default:
goto badopt;
}
}
err = setview(&ourview); /* set viewing parameters */
if (err != NULL)
error(USER, err);
/* initialize object types */
initotypes();
/* initialize urand */
if (rand_samp) {
srandom((long)time(0));
initurand(0);
} else {
srandom(0L);
initurand(2048);
}
/* set up signal handling */
sigdie(SIGINT, "Interrupt");
#ifdef SIGHUP
sigdie(SIGHUP, "Hangup");
#endif
sigdie(SIGTERM, "Terminate");
#ifdef SIGPIPE
sigdie(SIGPIPE, "Broken pipe");
#endif
#ifdef SIGALRM
sigdie(SIGALRM, "Alarm clock");
#endif
#ifdef SIGXCPU
sigdie(SIGXCPU, "CPU limit exceeded");
sigdie(SIGXFSZ, "File size exceeded");
#endif
/* open error file */
if (errfile != NULL) {
if (freopen(errfile, "a", stderr) == NULL)
quit(2);
fprintf(stderr, "**************\n*** PID %5d: ",
getpid());
printargs(argc, argv, stderr);
putc('\n', stderr);
fflush(stderr);
}
#ifdef NICE
nice(NICE); /* lower priority */
#endif
/* get octree */
if (i == argc)
octname = NULL;
else if (i == argc-1)
octname = argv[i];
else
goto badopt;
if (seqstart > 0 && octname == NULL)
error(USER, "missing octree argument");
/* set up output */
#ifdef PERSIST
if (persist) {
if (recover != NULL)
error(USER, "persist option used with recover file");
if (seqstart <= 0)
error(USER, "persist option only for sequences");
if (outfile == NULL)
duped1 = dup(fileno(stdout)); /* don't lose our output */
openheader();
} else
#endif
if (outfile != NULL)
openheader();
SET_FILE_BINARY(stdout);
if (octname == NULL)
SET_FILE_BINARY(stdin);
readoct(octname, loadflags, &thescene, NULL);
nsceneobjs = nobjects;
if (loadflags & IO_INFO) { /* print header */
printargs(i, argv, stdout);
printf("SOFTWARE= %s\n", VersionID);
}
ray_init_pmap(); /* PMAP: set up & load photon maps */
marksources(); /* find and mark sources */
setambient(); /* initialize ambient calculation */
fflush(stdout); /* in case we're duplicating header */
#ifdef PERSIST
if (persist) {
if (outfile == NULL) { /* reconnect stdout */
dup2(duped1, fileno(stdout));
close(duped1);
}
if (persist == PARALLEL) { /* multiprocessing */
preload_objs(); /* preload scene */
shm_boundary = (char *)malloc(16);
strcpy(shm_boundary, "SHM_BOUNDARY");
while ((rval=fork()) == 0) { /* keep on forkin' */
pflock(1);
pfhold();
tstart = time((time_t *)NULL);
ambsync(); /* load new values */
}
if (rval < 0)
error(SYSTEM, "cannot fork child for persist function");
pfdetach(); /* parent will run then exit */
}
}
runagain:
if (persist) {
if (outfile == NULL) /* if out to stdout */
dupheader(); /* send header */
else /* if out to file */
duped1 = dup(fileno(stdout)); /* hang onto pipe */
}
#endif
/* batch render picture(s) */
rpict(seqstart, outfile, zfile, recover);
/* flush ambient file */
ambsync();
#ifdef PERSIST
if (persist == PERSIST) { /* first run-through */
if ((rval=fork()) == 0) { /* child loops until killed */
pflock(1);
persist = PCHILD;
} else { /* original process exits */
if (rval < 0)
error(SYSTEM, "cannot fork child for persist function");
pfdetach(); /* parent exits */
}
}
if (persist == PCHILD) { /* wait for a signal then go again */
if (outfile != NULL)
close(duped1); /* release output handle */
pfhold();
tstart = time((time_t *)NULL); /* reinitialize */
raynum = nrays = 0;
goto runagain;
}
#endif
ray_done_pmap(); /* PMAP: free photon maps */
quit(0);
badopt:
sprintf(errmsg, "command line error at '%s'", argv[i]);
error(USER, errmsg);
return 1; /* pro forma return */
#undef check
#undef check_bool
}
void
wputs( /* warning output function */
char *s
)
{
int lasterrno = errno;
eputs(s);
errno = lasterrno;
}
void
eputs( /* put string to stderr */
register char *s
)
{
static int midline = 0;
if (!*s)
return;
if (!midline++) {
fputs(progname, stderr);
fputs(": ", stderr);
}
fputs(s, stderr);
if (s[strlen(s)-1] == '\n') {
fflush(stderr);
midline = 0;
}
}
static void
onsig( /* fatal signal */
int signo
)
{
static int gotsig = 0;
if (gotsig++) /* two signals and we're gone! */
_exit(signo);
#ifdef SIGALRM /* XXX how critical is this? */
alarm(15); /* allow 15 seconds to clean up */
signal(SIGALRM, SIG_DFL); /* make certain we do die */
#endif
eputs("signal - ");
eputs(sigerr[signo]);
eputs("\n");
quit(3);
}
static void
sigdie( /* set fatal signal */
int signo,
char *msg
)
{
if (signal(signo, onsig) == SIG_IGN)
signal(signo, SIG_IGN);
sigerr[signo] = msg;
}
static void
printdefaults(void) /* print default values to stdout */
{
printf("-vt%c\t\t\t\t# view type %s\n", ourview.type,
ourview.type==VT_PER ? "perspective" :
ourview.type==VT_PAR ? "parallel" :
ourview.type==VT_HEM ? "hemispherical" :
ourview.type==VT_ANG ? "angular" :
ourview.type==VT_CYL ? "cylindrical" :
ourview.type==VT_PLS ? "planisphere" :
"unknown");
printf("-vp %f %f %f\t# view point\n",
ourview.vp[0], ourview.vp[1], ourview.vp[2]);
printf("-vd %f %f %f\t# view direction\n",
ourview.vdir[0], ourview.vdir[1], ourview.vdir[2]);
printf("-vu %f %f %f\t# view up\n",
ourview.vup[0], ourview.vup[1], ourview.vup[2]);
printf("-vh %f\t\t\t# view horizontal size\n", ourview.horiz);
printf("-vv %f\t\t\t# view vertical size\n", ourview.vert);
printf("-vo %f\t\t\t# view fore clipping plane\n", ourview.vfore);
printf("-va %f\t\t\t# view aft clipping plane\n", ourview.vaft);
printf("-vs %f\t\t\t# view shift\n", ourview.hoff);
printf("-vl %f\t\t\t# view lift\n", ourview.voff);
printf("-x %-9d\t\t\t# x resolution\n", hresolu);
printf("-y %-9d\t\t\t# y resolution\n", vresolu);
printf("-pa %f\t\t\t# pixel aspect ratio\n", pixaspect);
printf("-pj %f\t\t\t# pixel jitter\n", dstrpix);
printf("-pm %f\t\t\t# pixel motion\n", mblur);
printf("-pd %f\t\t\t# pixel depth-of-field\n", dblur);
printf("-ps %-9d\t\t\t# pixel sample\n", psample);
printf("-pt %f\t\t\t# pixel threshold\n", maxdiff);
printf("-t %-9d\t\t\t# time between reports\n", ralrm);
printf(erract[WARNING].pf != NULL ?
"-w+\t\t\t\t# warning messages on\n" :
"-w-\t\t\t\t# warning messages off\n");
print_rdefaults();
}
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