--- ray/src/rt/rpict.c 1993/05/25 10:30:08 2.24 +++ ray/src/rt/rpict.c 1996/02/14 15:18:05 2.44 @@ -1,4 +1,4 @@ -/* Copyright (c) 1992 Regents of the University of California */ +/* Copyright (c) 1995 Regents of the University of California */ #ifndef lint static char SCCSid[] = "$SunId$ LBL"; @@ -12,11 +12,20 @@ static char SCCSid[] = "$SunId$ LBL"; #include "ray.h" +#include + +#ifndef NIX #ifdef BSD #include #include +#else +#include +#include #endif +#endif +extern time_t time(); + #include #include "view.h" @@ -54,13 +63,21 @@ int vspretest = 512; /* virtual source pretest dens int directvis = 1; /* sources visible? */ double srcsizerat = .25; /* maximum ratio source size/dist. */ +COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ +double salbedo = 0.; /* global scattering albedo */ +double seccg = 0.; /* global scattering eccentricity */ +double ssampdist = 0.; /* scatter sampling distance */ + double specthresh = .15; /* specular sampling threshold */ double specjitter = 1.; /* specular sampling jitter */ +int backvis = 1; /* back face visibility */ + int maxdepth = 6; /* maximum recursion depth */ double minweight = 5e-3; /* minimum ray weight */ COLOR ambval = BLKCOLOR; /* ambient value */ +int ambvwt = 0; /* initial weight for ambient value */ double ambacc = 0.2; /* ambient accuracy */ int ambres = 32; /* ambient resolution */ int ambdiv = 128; /* ambient divisions */ @@ -77,10 +94,9 @@ int ralrm = 0; /* seconds between reports */ double pctdone = 0.0; /* percentage done */ -long tlastrept = 0L; /* time at last report */ +time_t tlastrept = 0L; /* time at last report */ -extern long time(); -extern long tstart; /* starting time */ +extern time_t tstart; /* starting time */ extern unsigned long nrays; /* number of rays traced */ @@ -94,7 +110,22 @@ extern char *mktemp(); double pixvalue(); +#ifdef NIX +#define file_exists(f) (access(f,F_OK)==0) +#else +#include +#include +int +file_exists(fname) /* ordinary file exists? */ +char *fname; +{ + struct stat sbuf; + if (stat(fname, &sbuf) < 0) return(0); + return((sbuf.st_mode & S_IFREG) != 0); +} +#endif + quit(code) /* quit program */ int code; { @@ -106,32 +137,53 @@ int code; } -#ifdef BSD +#ifndef NIX report() /* report progress */ { + extern char *myhostname(); + double u, s; +#ifdef BSD struct rusage rubuf; - double t; +#else + struct tms tbuf; + double period; +#endif + tlastrept = time((time_t *)NULL); +#ifdef BSD getrusage(RUSAGE_SELF, &rubuf); - t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; - t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; + u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; + s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; getrusage(RUSAGE_CHILDREN, &rubuf); - t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; - t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; + u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; + s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; +#else + times(&tbuf); +#ifdef _SC_CLK_TCK + period = 1.0 / sysconf(_SC_CLK_TCK); +#else + period = 1.0 / 60.0; +#endif + u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; + s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; +#endif - sprintf(errmsg, "%lu rays, %4.2f%% done after %5.4f CPU hours\n", - nrays, pctdone, t/3600.0); + sprintf(errmsg, + "%lu rays, %4.2f%% after %.3fu %.3fs %.3fr hours on %s\n", + nrays, pctdone, u/3600., s/3600., + (tlastrept-tstart)/3600., myhostname()); eputs(errmsg); - tlastrept = time((long *)0); +#ifndef BSD + signal(SIGCONT, report); +#endif } #else report() /* report progress */ { - tlastrept = time((long *)0); - sprintf(errmsg, "%lu rays, %4.2f%% done after %5.4f hours\n", + tlastrept = time((time_t *)NULL); + sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", nrays, pctdone, (tlastrept-tstart)/3600.0); eputs(errmsg); - signal(SIGCONT, report); } #endif @@ -153,6 +205,7 @@ char *pout, *zout, *prvr; { extern char *rindex(), *strncpy(), *strcat(), *strcpy(); char fbuf[128], fbuf2[128]; + int npicts; register char *cp; RESOLU rs; double pa; @@ -189,20 +242,37 @@ char *pout, *zout, *prvr; cp--; strcpy(cp, RFTEMPLATE); prvr = mktemp(fbuf2); - if (rename(fbuf, prvr) < 0 && errno != ENOENT) { - sprintf(errmsg, + if (rename(fbuf, prvr) < 0) + if (errno == ENOENT) { /* ghost file */ + sprintf(errmsg, + "new output file \"%s\"", + fbuf); + error(WARNING, errmsg); + prvr = NULL; + } else { /* serious error */ + sprintf(errmsg, "cannot rename \"%s\" to \"%s\"", fbuf, prvr); - error(SYSTEM, errmsg); - } + error(SYSTEM, errmsg); + } } } - /* render sequence */ + npicts = 0; /* render sequence */ do { if (seq && nextview(stdin) == EOF) break; + pctdone = 0.0; if (pout != NULL) { sprintf(fbuf, pout, seq); + if (file_exists(fbuf)) { + if (prvr != NULL || !strcmp(fbuf, pout)) { + sprintf(errmsg, + "output file \"%s\" exists", + fbuf); + error(USER, errmsg); + } + continue; /* don't clobber */ + } if (freopen(fbuf, "w", stdout) == NULL) { sprintf(errmsg, "cannot open output file \"%s\"", fbuf); @@ -250,7 +320,11 @@ char *pout, *zout, *prvr; cp = NULL; render(cp, prvr); prvr = NULL; + npicts++; } while (seq++); + /* check that we did something */ + if (npicts == 0) + error(WARNING, "no output produced"); } @@ -296,10 +370,10 @@ char *zfile, *oldfile; sampdens[i] = hstep; } else sampdens = NULL; - /* open z file */ + /* open z-file */ if (zfile != NULL) { if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { - sprintf(errmsg, "cannot open z file \"%s\"", zfile); + sprintf(errmsg, "cannot open z-file \"%s\"", zfile); error(SYSTEM, errmsg); } #ifdef MSDOS @@ -319,9 +393,11 @@ char *zfile, *oldfile; fprtresolu(hres, vres, stdout); /* recover file and compute first */ i = salvage(oldfile); + if (i >= vres) + goto alldone; if (zfd != -1 && i > 0 && lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) - error(SYSTEM, "z file seek error in render"); + error(SYSTEM, "z-file seek error in render"); pctdone = 100.0*i/vres; if (ralrm > 0) /* report init stats */ report(); @@ -365,7 +441,7 @@ char *zfile, *oldfile; goto writerr; /* record progress */ pctdone = 100.0*(vres-1-ypos)/vres; - if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) + if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) report(); #ifndef BSD else @@ -374,18 +450,19 @@ char *zfile, *oldfile; } /* clean up */ signal(SIGCONT, SIG_IGN); - if (zfd != -1) { - if (write(zfd, (char *)zbar[0], hres*sizeof(float)) + if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) < hres*sizeof(float)) - goto writerr; + goto writerr; + fwritescan(scanbar[0], hres, stdout); + if (fflush(stdout) == EOF) + goto writerr; +alldone: + if (zfd != -1) { if (close(zfd) == -1) goto writerr; for (i = 0; i <= psample; i++) free((char *)zbar[i]); } - fwritescan(scanbar[0], hres, stdout); - if (fflush(stdout) == EOF) - goto writerr; for (i = 0; i <= psample; i++) free((char *)scanbar[i]); if (sampdens != NULL) @@ -428,7 +505,7 @@ int xres, y, xstep; b = fillsample(scanline, zline, 0, y, i, 0, b/2); else b = fillsample(scanline+i-xstep, - zline ? zline+i-xstep : NULL, + zline ? zline+i-xstep : (float *)NULL, i-xstep, y, xstep, 0, b/2); if (sd) *sd++ = nc & 1 ? bl : b; bl = b; @@ -456,7 +533,7 @@ int xres, y, ysize; zline[ysize] = zbar[ysize][i]; } - b = fillsample(vline, zbar[0] ? zline : NULL, + b = fillsample(vline, zbar[0] ? zline : (float *)NULL, i, y, 0, ysize, b/2); for (j = 1; j < ysize; j++) @@ -514,7 +591,8 @@ int b; /* recurse */ ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); - ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, + ncut += fillsample(colline+(len>>1), + zline ? zline+(len>>1) : (float *)NULL, x+(xlen>>1), y+(ylen>>1), xlen-(xlen>>1), ylen-(ylen>>1), b/2); @@ -529,8 +607,8 @@ int x, y; /* pixel position */ { static RAY thisray; - if (viewray(thisray.rorg, thisray.rdir, &ourview, - (x+pixjitter())/hres, (y+pixjitter())/vres) < 0) { + if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, &ourview, + (x+pixjitter())/hres, (y+pixjitter())/vres)) < -FTINY) { setcolor(col, 0.0, 0.0, 0.0); return(0.0); } @@ -556,12 +634,12 @@ char *oldfile; int x, y; if (oldfile == NULL) - return(0); - + goto gotzip; + if ((fp = fopen(oldfile, "r")) == NULL) { sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); error(WARNING, errmsg); - return(0); + goto gotzip; } #ifdef MSDOS setmode(fileno(fp), O_BINARY); @@ -570,10 +648,11 @@ char *oldfile; getheader(fp, NULL, NULL); /* get picture size */ if (!fscnresolu(&x, &y, fp)) { - sprintf(errmsg, "bad recover file \"%s\"", oldfile); + sprintf(errmsg, "bad recover file \"%s\" - not removed", + oldfile); error(WARNING, errmsg); fclose(fp); - return(0); + goto gotzip; } if (x != hres || y != vres) { @@ -597,6 +676,10 @@ char *oldfile; fclose(fp); unlink(oldfile); return(y); +gotzip: + if (fflush(stdout) == EOF) + error(SYSTEM, "error writing picture header"); + return(0); writerr: sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); error(SYSTEM, errmsg);