| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
greg |
2.13 |
static const char RCSid[] = "$Id: rcmain.c,v 2.12 2014/07/19 18:19:33 greg Exp $"; |
| 3 |
greg |
2.1 |
#endif |
| 4 |
|
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/* |
| 5 |
|
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* rcmain.c - main for rtcontrib ray contribution tracer |
| 6 |
|
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*/ |
| 7 |
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| 8 |
|
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#include "copyright.h" |
| 9 |
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| 10 |
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#include <signal.h> |
| 11 |
greg |
2.10 |
#include <time.h> |
| 12 |
greg |
2.1 |
#include "rcontrib.h" |
| 13 |
greg |
2.6 |
#include "random.h" |
| 14 |
greg |
2.1 |
#include "source.h" |
| 15 |
|
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#include "ambient.h" |
| 16 |
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| 17 |
|
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int gargc; /* global argc */ |
| 18 |
|
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char **gargv; /* global argv */ |
| 19 |
|
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char *octname; /* global octree name */ |
| 20 |
|
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char *progname; /* global argv[0] */ |
| 21 |
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| 22 |
|
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char *sigerr[NSIG]; /* signal error messages */ |
| 23 |
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| 24 |
|
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int nproc = 1; /* number of processes requested */ |
| 25 |
|
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int nchild = 0; /* number of children (-1 in child) */ |
| 26 |
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| 27 |
|
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int inpfmt = 'a'; /* input format */ |
| 28 |
|
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int outfmt = 'a'; /* output format */ |
| 29 |
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| 30 |
|
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int header = 1; /* output header? */ |
| 31 |
|
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int force_open = 0; /* truncate existing output? */ |
| 32 |
|
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int recover = 0; /* recover previous output? */ |
| 33 |
|
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int accumulate = 1; /* input rays per output record */ |
| 34 |
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int contrib = 0; /* computing contributions? */ |
| 35 |
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| 36 |
|
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int xres = 0; /* horizontal (scan) size */ |
| 37 |
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int yres = 0; /* vertical resolution */ |
| 38 |
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| 39 |
|
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int using_stdout = 0; /* are we using stdout? */ |
| 40 |
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| 41 |
|
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int imm_irrad = 0; /* compute immediate irradiance? */ |
| 42 |
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int lim_dist = 0; /* limit distance? */ |
| 43 |
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| 44 |
|
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const char *modname[MAXMODLIST]; /* ordered modifier name list */ |
| 45 |
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int nmods = 0; /* number of modifiers */ |
| 46 |
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|
| 47 |
greg |
2.4 |
void (*addobjnotify[8])() = {ambnotify, NULL}; |
| 48 |
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|
| 49 |
greg |
2.9 |
char RCCONTEXT[] = "RC"; /* our special evaluation context */ |
| 50 |
greg |
2.1 |
|
| 51 |
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| 52 |
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static void |
| 53 |
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printdefaults(void) /* print default values to stdout */ |
| 54 |
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{ |
| 55 |
greg |
2.3 |
printf("-c %-5d\t\t\t# accumulated rays per record\n", accumulate); |
| 56 |
|
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printf("-V%c\t\t\t\t# output %s\n", contrib ? '+' : '-', |
| 57 |
|
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contrib ? "contributions" : "coefficients"); |
| 58 |
greg |
2.1 |
if (imm_irrad) |
| 59 |
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printf("-I+\t\t\t\t# immediate irradiance on\n"); |
| 60 |
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printf("-n %-2d\t\t\t\t# number of rendering processes\n", nproc); |
| 61 |
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printf("-x %-9d\t\t\t# %s\n", xres, |
| 62 |
|
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yres && xres ? "x resolution" : "flush interval"); |
| 63 |
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printf("-y %-9d\t\t\t# y resolution\n", yres); |
| 64 |
|
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printf(lim_dist ? "-ld+\t\t\t\t# limit distance on\n" : |
| 65 |
|
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"-ld-\t\t\t\t# limit distance off\n"); |
| 66 |
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printf("-h%c\t\t\t\t# %s header\n", header ? '+' : '-', |
| 67 |
|
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header ? "output" : "no"); |
| 68 |
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printf("-f%c%c\t\t\t\t# format input/output = %s/%s\n", |
| 69 |
|
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inpfmt, outfmt, formstr(inpfmt), formstr(outfmt)); |
| 70 |
|
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printf(erract[WARNING].pf != NULL ? |
| 71 |
|
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"-w+\t\t\t\t# warning messages on\n" : |
| 72 |
|
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"-w-\t\t\t\t# warning messages off\n"); |
| 73 |
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print_rdefaults(); |
| 74 |
|
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} |
| 75 |
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| 76 |
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| 77 |
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static void |
| 78 |
|
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onsig( /* fatal signal */ |
| 79 |
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int signo |
| 80 |
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) |
| 81 |
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{ |
| 82 |
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static int gotsig = 0; |
| 83 |
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| 84 |
|
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if (gotsig++) /* two signals and we're gone! */ |
| 85 |
|
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_exit(signo); |
| 86 |
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| 87 |
|
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#ifdef SIGALRM |
| 88 |
|
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alarm(15); /* allow 15 seconds to clean up */ |
| 89 |
|
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signal(SIGALRM, SIG_DFL); /* make certain we do die */ |
| 90 |
|
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#endif |
| 91 |
|
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eputs("signal - "); |
| 92 |
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eputs(sigerr[signo]); |
| 93 |
|
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eputs("\n"); |
| 94 |
|
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quit(3); |
| 95 |
|
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} |
| 96 |
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| 97 |
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| 98 |
|
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static void |
| 99 |
|
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sigdie( /* set fatal signal */ |
| 100 |
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int signo, |
| 101 |
|
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char *msg |
| 102 |
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) |
| 103 |
|
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{ |
| 104 |
|
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if (signal(signo, onsig) == SIG_IGN) |
| 105 |
|
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signal(signo, SIG_IGN); |
| 106 |
|
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sigerr[signo] = msg; |
| 107 |
|
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} |
| 108 |
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| 109 |
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| 110 |
|
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/* set input/output format */ |
| 111 |
|
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static void |
| 112 |
|
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setformat(const char *fmt) |
| 113 |
|
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{ |
| 114 |
|
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switch (fmt[0]) { |
| 115 |
|
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case 'f': |
| 116 |
|
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case 'd': |
| 117 |
|
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SET_FILE_BINARY(stdin); |
| 118 |
|
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/* fall through */ |
| 119 |
|
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case 'a': |
| 120 |
|
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inpfmt = fmt[0]; |
| 121 |
|
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break; |
| 122 |
|
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default: |
| 123 |
|
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goto fmterr; |
| 124 |
|
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} |
| 125 |
|
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switch (fmt[1]) { |
| 126 |
|
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case '\0': |
| 127 |
|
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outfmt = inpfmt; |
| 128 |
|
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return; |
| 129 |
|
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case 'a': |
| 130 |
|
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case 'f': |
| 131 |
|
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case 'd': |
| 132 |
|
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case 'c': |
| 133 |
|
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outfmt = fmt[1]; |
| 134 |
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break; |
| 135 |
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default: |
| 136 |
|
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goto fmterr; |
| 137 |
|
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} |
| 138 |
|
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if (!fmt[2]) |
| 139 |
|
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return; |
| 140 |
|
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fmterr: |
| 141 |
|
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sprintf(errmsg, "Illegal i/o format: -f%s", fmt); |
| 142 |
|
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error(USER, errmsg); |
| 143 |
|
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} |
| 144 |
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| 145 |
|
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| 146 |
|
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/* Set overriding options */ |
| 147 |
|
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static void |
| 148 |
|
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override_options(void) |
| 149 |
|
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{ |
| 150 |
|
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shadthresh = 0; |
| 151 |
|
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ambssamp = 0; |
| 152 |
|
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ambacc = 0; |
| 153 |
|
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if (accumulate <= 0) /* no output flushing for single record */ |
| 154 |
|
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xres = yres = 0; |
| 155 |
|
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} |
| 156 |
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| 157 |
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| 158 |
|
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int |
| 159 |
|
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main(int argc, char *argv[]) |
| 160 |
|
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{ |
| 161 |
|
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#define check(ol,al) if (argv[i][ol] || \ |
| 162 |
|
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badarg(argc-i-1,argv+i+1,al)) \ |
| 163 |
|
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goto badopt |
| 164 |
|
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#define bool(olen,var) switch (argv[i][olen]) { \ |
| 165 |
|
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case '\0': var = !var; break; \ |
| 166 |
|
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case 'y': case 'Y': case 't': case 'T': \ |
| 167 |
|
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case '+': case '1': var = 1; break; \ |
| 168 |
|
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case 'n': case 'N': case 'f': case 'F': \ |
| 169 |
|
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case '-': case '0': var = 0; break; \ |
| 170 |
|
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default: goto badopt; } |
| 171 |
|
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char *curout = NULL; |
| 172 |
greg |
2.12 |
char *prms = NULL; |
| 173 |
greg |
2.1 |
char *binval = NULL; |
| 174 |
|
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int bincnt = 0; |
| 175 |
|
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int rval; |
| 176 |
|
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int i; |
| 177 |
|
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/* global program name */ |
| 178 |
|
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progname = argv[0] = fixargv0(argv[0]); |
| 179 |
|
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gargv = argv; |
| 180 |
|
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gargc = argc; |
| 181 |
|
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/* initialize calcomp routines early */ |
| 182 |
|
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initfunc(); |
| 183 |
|
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setcontext(RCCONTEXT); |
| 184 |
|
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/* option city */ |
| 185 |
|
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for (i = 1; i < argc; i++) { |
| 186 |
|
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/* expand arguments */ |
| 187 |
|
|
while ((rval = expandarg(&argc, &argv, i)) > 0) |
| 188 |
|
|
; |
| 189 |
|
|
if (rval < 0) { |
| 190 |
|
|
sprintf(errmsg, "cannot expand '%s'", argv[i]); |
| 191 |
|
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error(SYSTEM, errmsg); |
| 192 |
|
|
} |
| 193 |
|
|
if (argv[i] == NULL || argv[i][0] != '-') |
| 194 |
|
|
break; /* break from options */ |
| 195 |
|
|
if (!strcmp(argv[i], "-version")) { |
| 196 |
|
|
puts(VersionID); |
| 197 |
|
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quit(0); |
| 198 |
|
|
} |
| 199 |
|
|
if (!strcmp(argv[i], "-defaults") || |
| 200 |
|
|
!strcmp(argv[i], "-help")) { |
| 201 |
|
|
override_options(); |
| 202 |
|
|
printdefaults(); |
| 203 |
|
|
quit(0); |
| 204 |
|
|
} |
| 205 |
|
|
rval = getrenderopt(argc-i, argv+i); |
| 206 |
|
|
if (rval >= 0) { |
| 207 |
|
|
i += rval; |
| 208 |
|
|
continue; |
| 209 |
|
|
} |
| 210 |
|
|
switch (argv[i][1]) { |
| 211 |
|
|
case 'n': /* number of cores */ |
| 212 |
|
|
check(2,"i"); |
| 213 |
|
|
nproc = atoi(argv[++i]); |
| 214 |
|
|
if (nproc <= 0) |
| 215 |
|
|
error(USER, "bad number of processes"); |
| 216 |
|
|
break; |
| 217 |
|
|
case 'V': /* output contributions */ |
| 218 |
|
|
bool(2,contrib); |
| 219 |
|
|
break; |
| 220 |
|
|
case 'x': /* x resolution */ |
| 221 |
|
|
check(2,"i"); |
| 222 |
|
|
xres = atoi(argv[++i]); |
| 223 |
|
|
break; |
| 224 |
|
|
case 'y': /* y resolution */ |
| 225 |
|
|
check(2,"i"); |
| 226 |
|
|
yres = atoi(argv[++i]); |
| 227 |
|
|
break; |
| 228 |
|
|
case 'w': /* warnings */ |
| 229 |
greg |
2.2 |
rval = (erract[WARNING].pf != NULL); |
| 230 |
greg |
2.1 |
bool(2,rval); |
| 231 |
|
|
if (rval) erract[WARNING].pf = wputs; |
| 232 |
|
|
else erract[WARNING].pf = NULL; |
| 233 |
|
|
break; |
| 234 |
|
|
case 'e': /* expression */ |
| 235 |
|
|
check(2,"s"); |
| 236 |
|
|
scompile(argv[++i], NULL, 0); |
| 237 |
|
|
break; |
| 238 |
|
|
case 'l': /* limit distance */ |
| 239 |
|
|
if (argv[i][2] != 'd') |
| 240 |
|
|
goto badopt; |
| 241 |
|
|
bool(3,lim_dist); |
| 242 |
|
|
break; |
| 243 |
|
|
case 'I': /* immed. irradiance */ |
| 244 |
|
|
bool(2,imm_irrad); |
| 245 |
|
|
break; |
| 246 |
|
|
case 'f': /* file or force or format */ |
| 247 |
|
|
if (!argv[i][2]) { |
| 248 |
|
|
check(2,"s"); |
| 249 |
|
|
loadfunc(argv[++i]); |
| 250 |
|
|
break; |
| 251 |
|
|
} |
| 252 |
|
|
if (argv[i][2] == 'o') { |
| 253 |
|
|
bool(3,force_open); |
| 254 |
|
|
break; |
| 255 |
|
|
} |
| 256 |
|
|
setformat(argv[i]+2); |
| 257 |
|
|
break; |
| 258 |
|
|
case 'o': /* output */ |
| 259 |
|
|
check(2,"s"); |
| 260 |
|
|
curout = argv[++i]; |
| 261 |
|
|
break; |
| 262 |
|
|
case 'c': /* input rays per output */ |
| 263 |
|
|
check(2,"i"); |
| 264 |
|
|
accumulate = atoi(argv[++i]); |
| 265 |
|
|
break; |
| 266 |
|
|
case 'r': /* recover output */ |
| 267 |
|
|
bool(2,recover); |
| 268 |
|
|
break; |
| 269 |
|
|
case 'h': /* header output */ |
| 270 |
|
|
bool(2,header); |
| 271 |
|
|
break; |
| 272 |
greg |
2.12 |
case 'p': /* parameter setting(s) */ |
| 273 |
|
|
check(2,"s"); |
| 274 |
greg |
2.13 |
set_eparams(prms = argv[++i]); |
| 275 |
greg |
2.12 |
break; |
| 276 |
greg |
2.1 |
case 'b': /* bin expression/count */ |
| 277 |
|
|
if (argv[i][2] == 'n') { |
| 278 |
|
|
check(3,"s"); |
| 279 |
|
|
bincnt = (int)(eval(argv[++i]) + .5); |
| 280 |
|
|
break; |
| 281 |
|
|
} |
| 282 |
|
|
check(2,"s"); |
| 283 |
|
|
binval = argv[++i]; |
| 284 |
|
|
break; |
| 285 |
|
|
case 'm': /* modifier name */ |
| 286 |
|
|
check(2,"s"); |
| 287 |
greg |
2.12 |
addmodifier(argv[++i], curout, prms, binval, bincnt); |
| 288 |
greg |
2.1 |
break; |
| 289 |
|
|
case 'M': /* modifier file */ |
| 290 |
|
|
check(2,"s"); |
| 291 |
greg |
2.12 |
addmodfile(argv[++i], curout, prms, binval, bincnt); |
| 292 |
greg |
2.1 |
break; |
| 293 |
|
|
default: |
| 294 |
|
|
goto badopt; |
| 295 |
|
|
} |
| 296 |
|
|
} |
| 297 |
greg |
2.11 |
if (nmods <= 0) |
| 298 |
|
|
error(USER, "missing required modifier argument"); |
| 299 |
greg |
2.1 |
/* override some option settings */ |
| 300 |
|
|
override_options(); |
| 301 |
|
|
/* initialize object types */ |
| 302 |
|
|
initotypes(); |
| 303 |
|
|
/* initialize urand */ |
| 304 |
|
|
if (rand_samp) { |
| 305 |
|
|
srandom((long)time(0)); |
| 306 |
|
|
initurand(0); |
| 307 |
|
|
} else { |
| 308 |
|
|
srandom(0L); |
| 309 |
|
|
initurand(2048); |
| 310 |
|
|
} |
| 311 |
|
|
/* set up signal handling */ |
| 312 |
|
|
sigdie(SIGINT, "Interrupt"); |
| 313 |
|
|
#ifdef SIGHUP |
| 314 |
|
|
sigdie(SIGHUP, "Hangup"); |
| 315 |
|
|
#endif |
| 316 |
|
|
sigdie(SIGTERM, "Terminate"); |
| 317 |
|
|
#ifdef SIGPIPE |
| 318 |
|
|
sigdie(SIGPIPE, "Broken pipe"); |
| 319 |
|
|
#endif |
| 320 |
|
|
#ifdef SIGALRM |
| 321 |
|
|
sigdie(SIGALRM, "Alarm clock"); |
| 322 |
|
|
#endif |
| 323 |
|
|
#ifdef SIGXCPU |
| 324 |
|
|
sigdie(SIGXCPU, "CPU limit exceeded"); |
| 325 |
|
|
sigdie(SIGXFSZ, "File size exceeded"); |
| 326 |
|
|
#endif |
| 327 |
|
|
#ifdef NICE |
| 328 |
|
|
nice(NICE); /* lower priority */ |
| 329 |
|
|
#endif |
| 330 |
|
|
/* get octree */ |
| 331 |
|
|
if (i == argc) |
| 332 |
|
|
octname = NULL; |
| 333 |
|
|
else if (i == argc-1) |
| 334 |
|
|
octname = argv[i]; |
| 335 |
|
|
else |
| 336 |
|
|
goto badopt; |
| 337 |
|
|
if (octname == NULL) |
| 338 |
|
|
error(USER, "missing octree argument"); |
| 339 |
|
|
|
| 340 |
|
|
readoct(octname, ~(IO_FILES|IO_INFO), &thescene, NULL); |
| 341 |
|
|
nsceneobjs = nobjects; |
| 342 |
|
|
|
| 343 |
|
|
marksources(); /* find and mark sources */ |
| 344 |
|
|
|
| 345 |
|
|
setambient(); /* initialize ambient calculation */ |
| 346 |
|
|
|
| 347 |
greg |
2.2 |
rcontrib(); /* trace ray contributions (loop) */ |
| 348 |
greg |
2.1 |
|
| 349 |
|
|
ambsync(); /* flush ambient file */ |
| 350 |
|
|
|
| 351 |
|
|
quit(0); /* exit clean */ |
| 352 |
|
|
|
| 353 |
|
|
badopt: |
| 354 |
|
|
fprintf(stderr, |
| 355 |
greg |
2.12 |
"Usage: %s [-n nprocs][-V][-r][-e expr][-f source][-o ospec][-p p1=V1,p2=V2][-b binv][-bn N] {-m mod | -M file} [rtrace options] octree\n", |
| 356 |
greg |
2.1 |
progname); |
| 357 |
|
|
sprintf(errmsg, "command line error at '%s'", argv[i]); |
| 358 |
|
|
error(USER, errmsg); |
| 359 |
|
|
return(1); /* pro forma return */ |
| 360 |
|
|
|
| 361 |
|
|
#undef check |
| 362 |
|
|
#undef bool |
| 363 |
|
|
} |
| 364 |
|
|
|
| 365 |
|
|
|
| 366 |
|
|
void |
| 367 |
|
|
wputs( /* warning output function */ |
| 368 |
|
|
char *s |
| 369 |
|
|
) |
| 370 |
|
|
{ |
| 371 |
|
|
int lasterrno = errno; |
| 372 |
|
|
eputs(s); |
| 373 |
|
|
errno = lasterrno; |
| 374 |
|
|
} |
| 375 |
|
|
|
| 376 |
|
|
|
| 377 |
|
|
void |
| 378 |
|
|
eputs( /* put string to stderr */ |
| 379 |
|
|
char *s |
| 380 |
|
|
) |
| 381 |
|
|
{ |
| 382 |
|
|
static int midline = 0; |
| 383 |
|
|
|
| 384 |
|
|
if (!*s) |
| 385 |
|
|
return; |
| 386 |
|
|
if (!midline++) { |
| 387 |
|
|
fputs(progname, stderr); |
| 388 |
|
|
fputs(": ", stderr); |
| 389 |
|
|
} |
| 390 |
|
|
fputs(s, stderr); |
| 391 |
|
|
if (s[strlen(s)-1] == '\n') { |
| 392 |
|
|
fflush(stderr); |
| 393 |
|
|
midline = 0; |
| 394 |
|
|
} |
| 395 |
|
|
} |
