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root/radiance/ray/src/rt/rxcmain.cpp
Revision: 2.1
Committed: Tue Oct 29 00:36:54 2024 UTC (6 months ago) by greg
Branch: MAIN
Log Message:
feat(rxcontrib): First compiled version of rxcontrib tool to test new C++ classes

File Contents

# User Rev Content
1 greg 2.1 #ifndef lint
2     static const char RCSid[] = "$Id: rcmain.c,v 2.36 2024/04/05 16:41:17 greg Exp $";
3     #endif
4     /*
5     * rxcmain.c - main for rxcontrib ray contribution tracer
6     */
7    
8     #include "copyright.h"
9    
10     #include <signal.h>
11     #include <time.h>
12     #include <ctype.h>
13     #include "RcontribSimulManager.h"
14     #include "platform.h"
15     #include "func.h"
16    
17     const char *sigerr[NSIG]; /* signal error messages */
18    
19     int nproc = 1; /* number of processes requested */
20    
21     int inpfmt = 'a'; /* input format */
22     int outfmt = 'f'; /* output format */
23    
24     int contrib = 0; /* computing contributions? */
25    
26     int xres = 0; /* horizontal (scan) size */
27     int yres = 0; /* vertical resolution */
28    
29     int imm_irrad = 0; /* compute immediate irradiance? */
30     int lim_dist = 0; /* limit distance? */
31    
32     int report_intvl = 0; /* reporting interval (seconds) */
33    
34     extern char * progname; // global argv[0]
35    
36     RcontribSimulManager myRCmanager; // global rcontrib simulation manager
37    
38     #define RCONTRIB_FEATURES "Multiprocessing\n" \
39     "Accumulation\nRecovery\n" \
40     "ImmediateIrradiance\n" \
41     "ProgressReporting?\nDistanceLimiting\n" \
42     "InputFormats=a,f,d\nOutputFormats=f,d,c\n" \
43     "Outputs=V,W\n" \
44     "OutputCS=RGB,spec\n"
45    
46     static void rxcontrib(const int rstart = 0);
47    
48     static void
49     printdefaults(void) /* print default values to stdout */
50     {
51     printf("-c %-5d\t\t\t# accumulated rays per record\n", myRCmanager.accum);
52     printf("-V%c\t\t\t\t# output %s\n", contrib ? '+' : '-',
53     contrib ? "contributions" : "coefficients");
54     if (imm_irrad)
55     printf("-I+\t\t\t\t# immediate irradiance on\n");
56     printf("-n %-2d\t\t\t\t# number of rendering processes\n", nproc);
57     if (xres > 0)
58     printf("-x %-9d\t\t\t# x resolution\n", xres);
59     printf("-y %-9d\t\t\t# y resolution\n", yres);
60     printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" :
61     "-ld-\t\t\t\t# limit distance off\n");
62     printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n",
63     inpfmt, outfmt, formstr(inpfmt), formstr(outfmt));
64     if (report_intvl > 0)
65     printf("-t %-9d\t\t\t# time between reports\n", report_intvl);
66     printf(erract[WARNING].pf != NULL ?
67     "-w+\t\t\t\t# warning messages on\n" :
68     "-w-\t\t\t\t# warning messages off\n");
69     print_rdefaults();
70     }
71    
72    
73     static void
74     onsig( /* fatal signal */
75     int signo
76     )
77     {
78     static int gotsig = 0;
79    
80     if (gotsig++) /* two signals and we're gone! */
81     _exit(signo);
82    
83     #ifdef SIGALRM
84     alarm(15); /* allow 15 seconds to clean up */
85     signal(SIGALRM, SIG_DFL); /* make certain we do die */
86     #endif
87     eputs("signal - ");
88     eputs(sigerr[signo]);
89     eputs("\n");
90     quit(3);
91     }
92    
93    
94     static void
95     sigdie( /* set fatal signal */
96     int signo,
97     const char *msg
98     )
99     {
100     if (signal(signo, onsig) == SIG_IGN)
101     signal(signo, SIG_IGN);
102     sigerr[signo] = msg;
103     }
104    
105     const char *
106     formstr(int f) // return format identifier
107     {
108     switch (f) {
109     case 'a': return("ascii");
110     case 'f': return("float");
111     case 'd': return("double");
112     case 'c': return(NCSAMP==3 ? COLRFMT : SPECFMT);
113     }
114     return("unknown");
115     }
116    
117     /* set input/output format */
118     static void
119     setformat(const char *fmt)
120     {
121     switch (fmt[0]) {
122     case 'f':
123     case 'd':
124     SET_FILE_BINARY(stdin);
125     /* fall through */
126     case 'a':
127     inpfmt = fmt[0];
128     break;
129     default:
130     goto fmterr;
131     }
132     switch (fmt[1]) {
133     case '\0':
134     if (inpfmt == 'a')
135     goto fmterr;
136     outfmt = inpfmt;
137     return;
138     case 'f':
139     case 'd':
140     case 'c':
141     outfmt = fmt[1];
142     break;
143     default:
144     goto fmterr;
145     }
146     if (!fmt[2])
147     return;
148     fmterr:
149     sprintf(errmsg, "Unsupported i/o format: -f%s", fmt);
150     error(USER, errmsg);
151     }
152    
153    
154     /* Set overriding options */
155     static void
156     override_options(void)
157     {
158     shadthresh = 0;
159     ambssamp = 0;
160     ambacc = 0;
161     }
162    
163    
164     int
165     main(int argc, char *argv[])
166     {
167     #define check(ol,al) if (argv[i][ol] || \
168     badarg(argc-i-1,argv+i+1,al)) \
169     goto badopt
170     #define check_bool(olen,var) switch (argv[i][olen]) { \
171     case '\0': var = !var; break; \
172     case 'y': case 'Y': case 't': case 'T': \
173     case '+': case '1': var = 1; break; \
174     case 'n': case 'N': case 'f': case 'F': \
175     case '-': case '0': var = 0; break; \
176     default: goto badopt; }
177     int force_open = 0;
178     int recover = 0;
179     char *curout = NULL;
180     char *prms = NULL;
181     char *binval = NULL;
182     int bincnt = 0;
183     int rval;
184     int i;
185     /* global program name */
186     progname = argv[0];
187     /* feature check only? */
188     strcat(RFeatureList, RCONTRIB_FEATURES);
189     if (argc > 1 && !strcmp(argv[1], "-features"))
190     return feature_status(argc-2, argv+2);
191     /* initialize calcomp routines early */
192     initfunc();
193     calcontext(RCCONTEXT);
194     /* option city */
195     for (i = 1; i < argc; i++) {
196     /* expand arguments */
197     while ((rval = expandarg(&argc, &argv, i)) > 0)
198     ;
199     if (rval < 0) {
200     sprintf(errmsg, "cannot expand '%s'", argv[i]);
201     error(SYSTEM, errmsg);
202     }
203     if (argv[i] == NULL || argv[i][0] != '-')
204     break; /* break from options */
205     if (!strcmp(argv[i], "-version")) {
206     puts(VersionID);
207     quit(0);
208     }
209     if (!strcmp(argv[i], "-defaults") ||
210     !strcmp(argv[i], "-help")) {
211     override_options();
212     printdefaults();
213     quit(0);
214     }
215     rval = getrenderopt(argc-i, argv+i);
216     if (rval >= 0) {
217     i += rval;
218     continue;
219     }
220     switch (argv[i][1]) {
221     case 'n': /* number of cores */
222     check(2,"i");
223     nproc = atoi(argv[++i]);
224     if (nproc < 0 && (nproc += RadSimulManager::GetNCores()) <= 0)
225     nproc = 1;
226     break;
227     case 'V': /* output contributions */
228     check_bool(2,contrib);
229     break;
230     case 'x': /* x resolution */
231     check(2,"i");
232     xres = atoi(argv[++i]);
233     break;
234     case 'y': /* y resolution */
235     check(2,"i");
236     yres = atoi(argv[++i]);
237     break;
238     case 'w': /* warnings */
239     rval = (erract[WARNING].pf != NULL);
240     check_bool(2,rval);
241     if (rval) erract[WARNING].pf = wputs;
242     else erract[WARNING].pf = NULL;
243     break;
244     case 'e': /* expression */
245     check(2,"s");
246     scompile(argv[++i], NULL, 0);
247     break;
248     case 'l': /* limit distance */
249     if (argv[i][2] != 'd')
250     goto badopt;
251     check_bool(3,lim_dist);
252     break;
253     case 'I': /* immed. irradiance */
254     check_bool(2,imm_irrad);
255     break;
256     case 'f': /* file or force or format */
257     if (!argv[i][2]) {
258     check(2,"s");
259     loadfunc(argv[++i]);
260     break;
261     }
262     if (argv[i][2] == 'o') {
263     check_bool(3,force_open);
264     break;
265     }
266     setformat(argv[i]+2);
267     myRCmanager.SetDataFormat(outfmt);
268     break;
269     case 'o': /* output */
270     check(2,"s");
271     curout = argv[++i];
272     break;
273     case 'r': /* recover output */
274     check_bool(2,recover);
275     break;
276     case 'p': /* parameter setting(s) */
277     check(2,"s");
278     set_eparams(prms = argv[++i]);
279     break;
280     case 'c': /* sample count */
281     check(2,"i");
282     myRCmanager.accum = atoi(argv[++i]);
283     break;
284     case 'b': /* bin expression/count */
285     if (argv[i][2] == 'n') {
286     check(3,"s");
287     bincnt = (int)(eval(argv[++i]) + .5);
288     break;
289     }
290     check(2,"s");
291     binval = argv[++i];
292     break;
293     case 'm': /* modifier name */
294     check(2,"s");
295     myRCmanager.AddModifier(argv[++i], curout, prms, binval, bincnt);
296     break;
297     case 'M': /* modifier file */
298     check(2,"s");
299     myRCmanager.AddModFile(argv[++i], curout, prms, binval, bincnt);
300     break;
301     case 't': /* reporting interval */
302     check(2,"i");
303     report_intvl = atoi(argv[++i]);
304     break;
305     default:
306     goto badopt;
307     }
308     }
309     if (i != argc-1)
310     error(USER, "expected single octree argument");
311     // get ready to rock...
312     if (setspectrsamp(CNDX, WLPART) < 0)
313     error(USER, "unsupported spectral sampling");
314    
315     if (!myRCmanager.GetOutputs(NULL)) // check that we're ready
316     error(USER, "missing required modifier argument");
317     /* override some option settings */
318     override_options();
319     /* set up signal handling */
320     sigdie(SIGINT, "Interrupt");
321     #ifdef SIGHUP
322     sigdie(SIGHUP, "Hangup");
323     #endif
324     sigdie(SIGTERM, "Terminate");
325     #ifdef SIGPIPE
326     sigdie(SIGPIPE, "Broken pipe");
327     #endif
328     #ifdef SIGALRM
329     sigdie(SIGALRM, "Alarm clock");
330     #endif
331     #ifdef SIGXCPU
332     sigdie(SIGXCPU, "CPU limit exceeded");
333     sigdie(SIGXFSZ, "File size exceeded");
334     #endif
335     #ifdef NICE
336     nice(NICE); /* lower priority */
337     #endif
338     // load octree
339     myRCmanager.LoadOctree(argv[argc-1]);
340     // add to header
341     myRCmanager.AddHeader(argc-1, argv);
342     // prepare output files
343     if (recover)
344     myRCmanager.outOp = RCOrecover;
345     else if (force_open)
346     myRCmanager.outOp = RCOforce;
347     else
348     myRCmanager.outOp = RCOnew;
349     // rval = # rows recovered
350     rval = myRCmanager.PrepOutput();
351     // check if all done
352     if (recover && rval >= myRCmanager.GetRowMax()) {
353     error(WARNING, "nothing left to compute");
354     quit(0);
355     } // add processes as requested
356     myRCmanager.SetThreadCount(nproc);
357    
358     rxcontrib(rval); /* trace ray contributions (loop) */
359    
360     quit(0); /* exit clean */
361    
362     badopt:
363     fprintf(stderr,
364     "Usage: %s [-V][-c count][-r][-e expr][-f source][-o ospec][-p p1=V1,p2=V2][-b binv][-bn N] {-m mod | -M file} [rtrace options] octree\n",
365     progname);
366     sprintf(errmsg, "command line error at '%s'", argv[i]);
367     error(USER, errmsg);
368     return(1); /* pro forma return */
369    
370     #undef check
371     #undef check_bool
372     }
373    
374    
375     // skip specified number of bytes, return false if EOF
376     static bool
377     skipBytes(int n2skip)
378     {
379     while (n2skip-- > 0)
380     if (getchar() == EOF)
381     return false;
382     return true;
383     }
384    
385    
386     // skip specified number of whitespace-separated words, return false if EOF
387     static bool
388     skipWords(int n2skip)
389     {
390     int c;
391    
392     while (n2skip-- > 0) {
393     do {
394     c = getchar();
395     } while (isspace(c));
396     do {
397     if (c == EOF) return false;
398     c = getchar();
399     } while (!isspace(c));
400     }
401     return true;
402     }
403    
404    
405     // read a bundle of myRCmanager.accum ray origins and directions
406     static bool
407     getRayBundle(FVECT *orig_dir = NULL)
408     {
409     int n2go = myRCmanager.accum;
410    
411     switch (inpfmt) {
412     case 'a': // ASCII input
413     if (!orig_dir)
414     return skipWords(6*n2go);
415     while (n2go-- > 0) {
416     if (scanf(FVFORMAT, &orig_dir[0][0],
417     &orig_dir[0][1], &orig_dir[0][2]) != 3)
418     return false;
419     if (scanf(FVFORMAT, &orig_dir[1][0],
420     &orig_dir[1][1], &orig_dir[1][2]) != 3)
421     return false;
422     orig_dir += 2;
423     }
424     break;
425     case 'f': // float input
426     if (!orig_dir)
427     return skipBytes(6*sizeof(float)*n2go);
428     #ifdef SMLFLT
429     if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go)
430     return false;
431     #else
432     while (n2go-- > 0) {
433     float fvecs[6];
434     if (getbinary(fvecs, sizeof(fvecs), 1, stdin) != 1)
435     return false;
436     for (int i = 6; i--; )
437     orig_dir[0][i] = fvecs[i];
438     orig_dir += 2;
439     }
440     #endif
441     break;
442     case 'd': // double input
443     if (!orig_dir)
444     return skipBytes(6*sizeof(double)*n2go);
445     #ifndef SMLFLT
446     if (getbinary(orig_dir, sizeof(FVECT), 2*n2go, stdin) != 2*n2go)
447     return false;
448     #else
449     while (n2go-- > 0) {
450     double dvecs[6];
451     if (getbinary(dvecs, sizeof(dvecs), 1, stdin) != 1)
452     return false;
453     for (int i = 6; i--; )
454     orig_dir[0][i] = dvecs[i];
455     orig_dir += 2;
456     }
457     #endif
458     break;
459     default:
460     error(INTERNAL, "unsupported format in getRayBundle()");
461     return false;
462     }
463     int warned = 0; // normalize directions
464     n2go = myRCmanager.accum;
465     while (n2go-- > 0) {
466     orig_dir -= 2;
467     if (normalize(orig_dir[1]) == 0)
468     if (!warned++)
469     error(WARNING, "zero ray direction on input");
470     }
471     return true;
472     }
473    
474    
475     // Run loop to load data, report progress, etc.
476     void
477     rxcontrib(const int rstart)
478     {
479     const int totRows = myRCmanager.GetRowMax();
480     FVECT * odarr = (FVECT *)emalloc(sizeof(FVECT)*2*myRCmanager.accum);
481     time_t tstart, last_report;
482     int r = 0;
483    
484     while (r < rstart) { // skip input rays already done
485     if (!getRayBundle())
486     goto readerr;
487     r++;
488     }
489     if (report_intvl > 0) { // set up reporting
490     if (r > 0) {
491     sprintf(errmsg, "recovered %.2f%% of total\n",
492     100.*r/totRows);
493     eputs(errmsg);
494     }
495     last_report = tstart = time(0);
496     }
497     while (r < totRows) { // getting to work...
498     time_t tnow;
499     if (!getRayBundle(odarr))
500     goto readerr;
501     if (myRCmanager.ComputeRecord(odarr) < 0)
502     return; // error reported, hopefully...
503     r++;
504     if (report_intvl <= 0)
505     continue;
506     if ((r < totRows) & ((tnow = time(0)) < last_report+report_intvl))
507     continue;
508     sprintf(errmsg, "%.2f%% done after %.3f hours\n",
509     100.*r/totRows, (1./3600.)*(tnow - tstart));
510     eputs(errmsg);
511     last_report = tnow;
512     }
513     efree(odarr);
514     return;
515     readerr:
516     sprintf(errmsg, "unexpected EOF on standard input (record %d of %d)",
517     r, totRows);
518     error(USER, errmsg);
519     }
520    
521    
522     void
523     wputs( /* warning output function */
524     const char *s
525     )
526     {
527     int lasterrno = errno;
528     eputs(s);
529     errno = lasterrno;
530     }
531    
532    
533     void
534     eputs( /* put string to stderr */
535     const char *s
536     )
537     {
538     static int midline = 0;
539    
540     if (!*s)
541     return;
542     if (!midline++) {
543     fputs(progname, stderr);
544     fputs(": ", stderr);
545     }
546     fputs(s, stderr);
547     if (s[strlen(s)-1] == '\n') {
548     fflush(stderr);
549     midline = 0;
550     }
551     }
552    
553    
554     /* Quit program */
555     void
556     quit(
557     int code
558     )
559     {
560     if (!code && myRCmanager.Ready()) // clean up on normal exit
561     code = myRCmanager.Cleanup();
562    
563     exit(code);
564     }