| 1 |
gregl |
3.1 |
#ifndef lint |
| 2 |
greg |
3.58 |
static const char RCSid[] = "$Id: rholo.c,v 3.57 2003/06/20 00:25:49 greg Exp $"; |
| 3 |
gregl |
3.1 |
#endif |
| 4 |
|
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/* |
| 5 |
|
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* Radiance holodeck generation controller |
| 6 |
|
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*/ |
| 7 |
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| 8 |
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#include "rholo.h" |
| 9 |
gregl |
3.14 |
#include "random.h" |
| 10 |
gregl |
3.12 |
#include <signal.h> |
| 11 |
|
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#include <sys/stat.h> |
| 12 |
gregl |
3.1 |
|
| 13 |
gwlarson |
3.44 |
#ifndef FRAGWARN |
| 14 |
|
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#define FRAGWARN 20 /* fragmentation for warning (%) */ |
| 15 |
|
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#endif |
| 16 |
gregl |
3.33 |
#ifndef MAXQTIME |
| 17 |
|
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#define MAXQTIME 5 /* target maximum seconds in queue */ |
| 18 |
|
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#endif |
| 19 |
gwlarson |
3.49 |
/* manual cache flushing frequency */ |
| 20 |
|
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#ifndef RTFLUSH |
| 21 |
|
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#if MAXQTIME |
| 22 |
|
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#define RTFLUSH (300/MAXQTIME*totqlen) /* <= 5 minutes */ |
| 23 |
|
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#else |
| 24 |
|
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#define RTFLUSH (50*totqlen) /* just guess */ |
| 25 |
|
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#endif |
| 26 |
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#endif |
| 27 |
gregl |
3.1 |
/* the following must be consistent with rholo.h */ |
| 28 |
|
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int NVARS = NRHVARS; /* total number of variables */ |
| 29 |
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| 30 |
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VARIABLE vv[] = RHVINIT; /* variable-value pairs */ |
| 31 |
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| 32 |
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char *progname; /* our program name */ |
| 33 |
|
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char *hdkfile; /* holodeck file name */ |
| 34 |
gregl |
3.22 |
char froot[256]; /* root file name */ |
| 35 |
gregl |
3.1 |
|
| 36 |
|
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int ncprocs = 0; /* desired number of compute processes */ |
| 37 |
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| 38 |
|
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char *outdev = NULL; /* output device name */ |
| 39 |
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| 40 |
gregl |
3.17 |
int readinp = 0; /* read commands from stdin */ |
| 41 |
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| 42 |
gwlarson |
3.51 |
int force = 0; /* allow overwrite of holodeck (-1 == read-only) */ |
| 43 |
gregl |
3.20 |
|
| 44 |
gregl |
3.1 |
time_t starttime; /* time we got started */ |
| 45 |
|
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time_t endtime; /* time we should end by */ |
| 46 |
|
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time_t reporttime; /* time for next report */ |
| 47 |
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| 48 |
greg |
3.54 |
off_t maxdisk; /* maximum file space (bytes) */ |
| 49 |
gregl |
3.8 |
|
| 50 |
gregl |
3.1 |
int rtargc = 1; /* rtrace command */ |
| 51 |
|
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char *rtargv[128] = {"rtrace", NULL}; |
| 52 |
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| 53 |
gregl |
3.12 |
int orig_mode = -1; /* original file mode (-1 if unchanged) */ |
| 54 |
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| 55 |
gregl |
3.1 |
long nraysdone = 0L; /* number of rays done */ |
| 56 |
|
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long npacksdone = 0L; /* number of packets done */ |
| 57 |
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| 58 |
|
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PACKET *freepacks; /* available packets */ |
| 59 |
gwlarson |
3.49 |
int totqlen; /* maximum queue length (number of packets) */ |
| 60 |
gregl |
3.1 |
|
| 61 |
gregl |
3.12 |
char *sigerr[NSIG]; /* signal error messages */ |
| 62 |
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| 63 |
gwlarson |
3.40 |
extern int nowarn; /* turn warnings off? */ |
| 64 |
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| 65 |
gregl |
3.1 |
extern time_t time(); |
| 66 |
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| 67 |
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| 68 |
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main(argc, argv) |
| 69 |
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int argc; |
| 70 |
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char *argv[]; |
| 71 |
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{ |
| 72 |
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int i; |
| 73 |
gregl |
3.33 |
|
| 74 |
gregl |
3.18 |
initurand(16384); /* initialize urand */ |
| 75 |
gregl |
3.1 |
progname = argv[0]; /* get arguments */ |
| 76 |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
| 77 |
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switch (argv[i][1]) { |
| 78 |
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case 'w': /* turn off warnings */ |
| 79 |
|
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nowarn++; |
| 80 |
|
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break; |
| 81 |
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case 'f': /* force overwrite */ |
| 82 |
gwlarson |
3.51 |
force = 1; |
| 83 |
gregl |
3.1 |
break; |
| 84 |
gwlarson |
3.51 |
case 'r': /* read-only mode */ |
| 85 |
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force = -1; |
| 86 |
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break; |
| 87 |
gregl |
3.17 |
case 'i': /* read input from stdin */ |
| 88 |
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readinp++; |
| 89 |
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break; |
| 90 |
gregl |
3.1 |
case 'n': /* compute processes */ |
| 91 |
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if (i >= argc-2) |
| 92 |
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goto userr; |
| 93 |
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ncprocs = atoi(argv[++i]); |
| 94 |
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break; |
| 95 |
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case 'o': /* output display */ |
| 96 |
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if (i >= argc-2) |
| 97 |
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goto userr; |
| 98 |
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outdev = argv[++i]; |
| 99 |
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break; |
| 100 |
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default: |
| 101 |
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goto userr; |
| 102 |
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} |
| 103 |
|
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/* get root file name */ |
| 104 |
gregl |
3.32 |
if (i >= argc) |
| 105 |
|
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goto userr; |
| 106 |
gregl |
3.1 |
rootname(froot, hdkfile=argv[i++]); |
| 107 |
gregl |
3.27 |
/* load variables? */ |
| 108 |
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if (i < argc) |
| 109 |
|
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if (argv[i][0] != '-' && argv[i][0] != '+') |
| 110 |
|
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loadvars(argv[i]); /* load variables from file */ |
| 111 |
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| 112 |
|
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if (i >= argc || argv[i][0] == '+') |
| 113 |
|
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loadholo(); /* load existing holodeck */ |
| 114 |
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| 115 |
|
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while (++i < argc) /* get command line settings */ |
| 116 |
|
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if (setvariable(argv[i], matchvar) < 0) { |
| 117 |
|
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sprintf(errmsg, "unknown variable: %s", argv[i]); |
| 118 |
|
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error(USER, errmsg); |
| 119 |
|
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} |
| 120 |
|
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/* check settings */ |
| 121 |
|
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checkvalues(); |
| 122 |
gregl |
3.36 |
/* load rad input file */ |
| 123 |
|
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getradfile(); |
| 124 |
gregl |
3.27 |
|
| 125 |
gregl |
3.28 |
if (hdlist[0] == NULL) { /* create new holodeck */ |
| 126 |
gregl |
3.29 |
HDGRID hdg[HDMAX]; |
| 127 |
gregl |
3.1 |
/* set defaults */ |
| 128 |
gregl |
3.29 |
setdefaults(hdg); |
| 129 |
gwlarson |
3.51 |
/* check read-only */ |
| 130 |
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if (force < 0) |
| 131 |
|
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error(USER, "cannot create read-only holodeck"); |
| 132 |
gregl |
3.1 |
/* holodeck exists? */ |
| 133 |
|
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if (!force && access(hdkfile, R_OK|W_OK) == 0) |
| 134 |
|
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error(USER, |
| 135 |
|
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"holodeck file exists -- use -f to overwrite"); |
| 136 |
|
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/* create holodeck */ |
| 137 |
gregl |
3.29 |
creatholo(hdg); |
| 138 |
gregl |
3.27 |
} else /* else just set defaults */ |
| 139 |
gregl |
3.15 |
setdefaults(NULL); |
| 140 |
gregl |
3.1 |
/* initialize */ |
| 141 |
|
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initrholo(); |
| 142 |
gregl |
3.15 |
/* main loop */ |
| 143 |
gregl |
3.1 |
while (rholo()) |
| 144 |
|
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; |
| 145 |
|
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/* done */ |
| 146 |
|
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quit(0); |
| 147 |
|
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userr: |
| 148 |
|
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fprintf(stderr, |
| 149 |
gwlarson |
3.51 |
"Usage: %s [-n nprocs][-o disp][-w][-r|-f] output.hdk [control.hif|+|- [VAR=val ..]]\n", |
| 150 |
gregl |
3.1 |
progname); |
| 151 |
|
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quit(1); |
| 152 |
|
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} |
| 153 |
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| 154 |
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| 155 |
schorsch |
3.55 |
void |
| 156 |
gregl |
3.12 |
onsig(signo) /* fatal signal */ |
| 157 |
|
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int signo; |
| 158 |
|
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{ |
| 159 |
|
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static int gotsig = 0; |
| 160 |
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| 161 |
gwlarson |
3.47 |
if (gotsig > 1) /* we're going as fast as we can! */ |
| 162 |
|
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return; |
| 163 |
|
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if (gotsig++) { /* two signals and we split */ |
| 164 |
|
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hdsync(NULL, 0); /* don't leave w/o saying goodbye */ |
| 165 |
gregl |
3.12 |
_exit(signo); |
| 166 |
gwlarson |
3.47 |
} |
| 167 |
|
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alarm(300); /* allow 5 minutes to clean up */ |
| 168 |
gregl |
3.12 |
eputs("signal - "); |
| 169 |
|
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eputs(sigerr[signo]); |
| 170 |
|
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eputs("\n"); |
| 171 |
|
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quit(3); |
| 172 |
|
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} |
| 173 |
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| 174 |
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| 175 |
|
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sigdie(signo, msg) /* set fatal signal */ |
| 176 |
|
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int signo; |
| 177 |
|
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char *msg; |
| 178 |
|
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{ |
| 179 |
|
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if (signal(signo, onsig) == SIG_IGN) |
| 180 |
|
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signal(signo, SIG_IGN); |
| 181 |
|
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sigerr[signo] = msg; |
| 182 |
|
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} |
| 183 |
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| 184 |
|
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| 185 |
|
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int |
| 186 |
|
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resfmode(fd, mod) /* restrict open file access mode */ |
| 187 |
|
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int fd, mod; |
| 188 |
|
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{ |
| 189 |
|
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struct stat stbuf; |
| 190 |
|
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/* get original mode */ |
| 191 |
|
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if (fstat(fd, &stbuf) < 0) |
| 192 |
|
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error(SYSTEM, "cannot stat open holodeck file"); |
| 193 |
|
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mod &= stbuf.st_mode; /* always more restrictive */ |
| 194 |
gregl |
3.35 |
if (mod == (stbuf.st_mode & 0777)) |
| 195 |
gregl |
3.12 |
return(-1); /* already set */ |
| 196 |
|
|
/* else change it */ |
| 197 |
|
|
if (fchmod(fd, mod) < 0) { |
| 198 |
|
|
error(WARNING, "cannot change holodeck file access mode"); |
| 199 |
|
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return(-1); |
| 200 |
|
|
} |
| 201 |
|
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return(stbuf.st_mode); /* return original mode */ |
| 202 |
|
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} |
| 203 |
|
|
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| 204 |
|
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| 205 |
gregl |
3.1 |
initrholo() /* get our holodeck running */ |
| 206 |
|
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{ |
| 207 |
|
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extern int global_packet(); |
| 208 |
|
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register int i; |
| 209 |
gregl |
3.17 |
/* close holodeck on exec() */ |
| 210 |
|
|
fcntl(hdlist[0]->fd, F_SETFD, FD_CLOEXEC); |
| 211 |
gregl |
3.4 |
|
| 212 |
|
|
if (outdev != NULL) /* open output device */ |
| 213 |
|
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disp_open(outdev); |
| 214 |
gregl |
3.1 |
else if (ncprocs > 0) /* else use global ray feed */ |
| 215 |
|
|
init_global(); |
| 216 |
gregl |
3.8 |
/* record disk space limit */ |
| 217 |
|
|
if (!vdef(DISKSPACE)) |
| 218 |
greg |
3.58 |
maxdisk = ((off_t)1<<(sizeof(off_t)*8-2)) - 1024; |
| 219 |
gregl |
3.8 |
else |
| 220 |
gregl |
3.9 |
maxdisk = 1024.*1024.*vflt(DISKSPACE); |
| 221 |
gregl |
3.1 |
/* set up memory cache */ |
| 222 |
gregl |
3.5 |
if (outdev == NULL) |
| 223 |
gwlarson |
3.50 |
hdcachesize = 0; /* manual flushing */ |
| 224 |
gregl |
3.5 |
else if (vdef(CACHE)) |
| 225 |
|
|
hdcachesize = 1024.*1024.*vflt(CACHE); |
| 226 |
gregl |
3.1 |
/* open report file */ |
| 227 |
|
|
if (vdef(REPORT)) { |
| 228 |
|
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register char *s = sskip2(vval(REPORT), 1); |
| 229 |
|
|
if (*s && freopen(s, "a", stderr) == NULL) |
| 230 |
|
|
quit(2); |
| 231 |
|
|
} |
| 232 |
gregl |
3.33 |
/* mark the starting time */ |
| 233 |
|
|
starttime = time(NULL); |
| 234 |
|
|
/* compute end time */ |
| 235 |
|
|
if (!vdef(TIME) || vflt(TIME) <= FTINY) |
| 236 |
|
|
endtime = 0; |
| 237 |
|
|
else |
| 238 |
|
|
endtime = starttime + vflt(TIME)*3600. + .5; |
| 239 |
gregl |
3.1 |
/* start rtrace */ |
| 240 |
|
|
if (ncprocs > 0) { |
| 241 |
gwlarson |
3.38 |
totqlen = i = start_rtrace(); |
| 242 |
gregl |
3.1 |
if (i < 1) |
| 243 |
gregl |
3.20 |
error(USER, "cannot start rtrace process(es)"); |
| 244 |
gregl |
3.1 |
if (vdef(REPORT)) { /* make first report */ |
| 245 |
|
|
printargs(rtargc, rtargv, stderr); |
| 246 |
|
|
report(0); |
| 247 |
|
|
} |
| 248 |
|
|
/* allocate packets */ |
| 249 |
|
|
freepacks = (PACKET *)bmalloc(i*sizeof(PACKET)); |
| 250 |
|
|
if (freepacks == NULL) |
| 251 |
|
|
goto memerr; |
| 252 |
|
|
freepacks[--i].nr = 0; |
| 253 |
|
|
freepacks[i].next = NULL; |
| 254 |
gregl |
3.25 |
if (!vdef(OBSTRUCTIONS) || !vbool(OBSTRUCTIONS)) { |
| 255 |
gregl |
3.1 |
freepacks[i].offset = (float *)bmalloc( |
| 256 |
|
|
RPACKSIZ*sizeof(float)*(i+1) ); |
| 257 |
|
|
if (freepacks[i].offset == NULL) |
| 258 |
|
|
goto memerr; |
| 259 |
|
|
} else |
| 260 |
|
|
freepacks[i].offset = NULL; |
| 261 |
|
|
while (i--) { |
| 262 |
|
|
freepacks[i].nr = 0; |
| 263 |
|
|
freepacks[i].offset = freepacks[i+1].offset == NULL ? |
| 264 |
|
|
NULL : freepacks[i+1].offset+RPACKSIZ ; |
| 265 |
|
|
freepacks[i].next = &freepacks[i+1]; |
| 266 |
|
|
} |
| 267 |
|
|
} |
| 268 |
gregl |
3.12 |
/* set up signal handling */ |
| 269 |
|
|
sigdie(SIGINT, "Interrupt"); |
| 270 |
|
|
sigdie(SIGHUP, "Hangup"); |
| 271 |
|
|
sigdie(SIGTERM, "Terminate"); |
| 272 |
|
|
sigdie(SIGPIPE, "Broken pipe"); |
| 273 |
|
|
sigdie(SIGALRM, "Alarm clock"); |
| 274 |
|
|
#ifdef SIGXCPU |
| 275 |
|
|
sigdie(SIGXCPU, "CPU limit exceeded"); |
| 276 |
|
|
sigdie(SIGXFSZ, "File size exceeded"); |
| 277 |
|
|
#endif |
| 278 |
gwlarson |
3.50 |
/* protect holodeck file */ |
| 279 |
greg |
3.52 |
orig_mode = resfmode(hdlist[0]->fd, ncprocs>0&force>=0 ? 0 : 0444); |
| 280 |
gregl |
3.1 |
return; |
| 281 |
|
|
memerr: |
| 282 |
|
|
error(SYSTEM, "out of memory in initrholo"); |
| 283 |
|
|
} |
| 284 |
|
|
|
| 285 |
|
|
|
| 286 |
|
|
rholo() /* holodeck main loop */ |
| 287 |
|
|
{ |
| 288 |
gwlarson |
3.44 |
static long nextfragwarn = 100*(1L<<20); |
| 289 |
gregl |
3.30 |
static int idle = 0; |
| 290 |
gregl |
3.1 |
PACKET *pl = NULL, *plend; |
| 291 |
greg |
3.54 |
off_t fsiz; |
| 292 |
gregl |
3.33 |
int pksiz; |
| 293 |
gregl |
3.1 |
register PACKET *p; |
| 294 |
|
|
time_t t; |
| 295 |
gregl |
3.30 |
/* check display */ |
| 296 |
|
|
if (nprocs <= 0) |
| 297 |
|
|
idle = 1; |
| 298 |
|
|
if (outdev != NULL) { |
| 299 |
gregl |
3.4 |
if (!disp_check(idle)) |
| 300 |
gregl |
3.30 |
return(0); /* quit request */ |
| 301 |
|
|
if (nprocs <= 0) |
| 302 |
|
|
return(1); |
| 303 |
|
|
} else if (idle) |
| 304 |
|
|
return(0); /* all done */ |
| 305 |
gwlarson |
3.44 |
fsiz = hdfilen(hdlist[0]->fd); /* check file size */ |
| 306 |
|
|
if (maxdisk > 0 && fsiz >= maxdisk) { |
| 307 |
gregl |
3.8 |
error(WARNING, "file limit exceeded"); |
| 308 |
gregl |
3.21 |
done_rtrace(); |
| 309 |
|
|
return(1); /* comes back */ |
| 310 |
gregl |
3.8 |
} |
| 311 |
gwlarson |
3.44 |
#if FRAGWARN |
| 312 |
|
|
if (fsiz >= nextfragwarn && |
| 313 |
|
|
(fsiz-hdfiluse(hdlist[0]->fd,0))/(fsiz/100) > FRAGWARN) { |
| 314 |
|
|
sprintf(errmsg, "holodeck file fragmentation is %.0f%%", |
| 315 |
|
|
100.*(fsiz-hdfiluse(hdlist[0]->fd,1))/fsiz); |
| 316 |
|
|
error(WARNING, errmsg); |
| 317 |
|
|
nextfragwarn = fsiz + (fsiz>>2); /* decent interval */ |
| 318 |
|
|
} |
| 319 |
|
|
#endif |
| 320 |
gregl |
3.33 |
t = time(NULL); /* check time */ |
| 321 |
gregl |
3.8 |
if (endtime > 0 && t >= endtime) { |
| 322 |
|
|
error(WARNING, "time limit exceeded"); |
| 323 |
gregl |
3.21 |
done_rtrace(); |
| 324 |
|
|
return(1); /* comes back */ |
| 325 |
gregl |
3.8 |
} |
| 326 |
gregl |
3.3 |
if (reporttime > 0 && t >= reporttime) |
| 327 |
gregl |
3.1 |
report(t); |
| 328 |
gregl |
3.33 |
/* figure out good packet size */ |
| 329 |
gwlarson |
3.48 |
pksiz = RPACKSIZ; |
| 330 |
gregl |
3.33 |
#if MAXQTIME |
| 331 |
gwlarson |
3.48 |
if (!chunkycmp) { |
| 332 |
|
|
pksiz = nraysdone*MAXQTIME/(totqlen*(t - starttime + 1L)); |
| 333 |
|
|
if (pksiz < 1) pksiz = 1; |
| 334 |
|
|
else if (pksiz > RPACKSIZ) pksiz = RPACKSIZ; |
| 335 |
|
|
} |
| 336 |
gregl |
3.33 |
#endif |
| 337 |
gregl |
3.28 |
idle = 0; /* get packets to process */ |
| 338 |
gregl |
3.1 |
while (freepacks != NULL) { |
| 339 |
|
|
p = freepacks; freepacks = p->next; p->next = NULL; |
| 340 |
gregl |
3.33 |
if (!next_packet(p, pksiz)) { |
| 341 |
gregl |
3.1 |
p->next = freepacks; freepacks = p; |
| 342 |
gregl |
3.21 |
idle = 1; |
| 343 |
gregl |
3.1 |
break; |
| 344 |
|
|
} |
| 345 |
|
|
if (pl == NULL) pl = p; |
| 346 |
|
|
else plend->next = p; |
| 347 |
|
|
plend = p; |
| 348 |
|
|
} |
| 349 |
gregl |
3.21 |
/* process packets */ |
| 350 |
gregl |
3.1 |
done_packets(do_packets(pl)); |
| 351 |
|
|
return(1); /* and continue */ |
| 352 |
|
|
} |
| 353 |
|
|
|
| 354 |
|
|
|
| 355 |
|
|
setdefaults(gp) /* set default values */ |
| 356 |
|
|
register HDGRID *gp; |
| 357 |
|
|
{ |
| 358 |
|
|
extern char *atos(); |
| 359 |
|
|
register int i; |
| 360 |
gregl |
3.29 |
int n; |
| 361 |
gregl |
3.37 |
double len[3], d; |
| 362 |
gregl |
3.1 |
char buf[64]; |
| 363 |
|
|
|
| 364 |
|
|
if (!vdef(SECTION)) { |
| 365 |
|
|
sprintf(errmsg, "%s must be defined", vnam(SECTION)); |
| 366 |
|
|
error(USER, errmsg); |
| 367 |
|
|
} |
| 368 |
|
|
if (!vdef(OCTREE)) { |
| 369 |
|
|
if ((vval(OCTREE) = bmalloc(strlen(froot)+5)) == NULL) |
| 370 |
|
|
error(SYSTEM, "out of memory"); |
| 371 |
|
|
sprintf(vval(OCTREE), "%s.oct", froot); |
| 372 |
|
|
vdef(OCTREE)++; |
| 373 |
gregl |
3.14 |
} |
| 374 |
|
|
if (!vdef(VDIST)) { |
| 375 |
|
|
vval(VDIST) = "F"; |
| 376 |
|
|
vdef(VDIST)++; |
| 377 |
gregl |
3.1 |
} |
| 378 |
|
|
/* append rendering options */ |
| 379 |
|
|
if (vdef(RENDER)) |
| 380 |
|
|
rtargc += wordstring(rtargv+rtargc, vval(RENDER)); |
| 381 |
gregl |
3.15 |
|
| 382 |
|
|
if (gp == NULL) /* already initialized? */ |
| 383 |
|
|
return; |
| 384 |
|
|
/* set grid parameters */ |
| 385 |
gregl |
3.29 |
for (n = 0; n < vdef(SECTION); n++, gp++) { |
| 386 |
|
|
gp->grid[0] = gp->grid[1] = gp->grid[2] = 0; |
| 387 |
|
|
if (sscanf(nvalue(SECTION, n), |
| 388 |
gregl |
3.16 |
"%lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %lf %hd %hd %hd", |
| 389 |
gregl |
3.29 |
&gp->orig[0], &gp->orig[1], &gp->orig[2], |
| 390 |
|
|
&gp->xv[0][0], &gp->xv[0][1], &gp->xv[0][2], |
| 391 |
|
|
&gp->xv[1][0], &gp->xv[1][1], &gp->xv[1][2], |
| 392 |
|
|
&gp->xv[2][0], &gp->xv[2][1], &gp->xv[2][2], |
| 393 |
|
|
&gp->grid[0], &gp->grid[1], &gp->grid[2]) < 12) |
| 394 |
|
|
badvalue(SECTION); |
| 395 |
|
|
for (i = 0; i < 3; i++) |
| 396 |
gregl |
3.37 |
len[i] = VLEN(gp->xv[i]); |
| 397 |
|
|
if (!vdef(GRID)) { |
| 398 |
gwlarson |
3.43 |
d = 2/2e5*( len[0]*len[0]*(len[1]*len[1] + |
| 399 |
gregl |
3.37 |
len[2]*len[2] + 4*len[1]*len[2]) |
| 400 |
|
|
+ len[1]*len[1]*len[2]*(len[2] + 4*len[0]) |
| 401 |
|
|
+ 4*len[0]*len[1]*len[2]*len[2] ); |
| 402 |
|
|
d = sqrt(sqrt(d)); |
| 403 |
|
|
} else if ((d = vflt(GRID)) <= FTINY) |
| 404 |
gregl |
3.29 |
badvalue(GRID); |
| 405 |
|
|
for (i = 0; i < 3; i++) |
| 406 |
|
|
if (gp->grid[i] <= 0) |
| 407 |
|
|
gp->grid[i] = len[i]/d + (1.-FTINY); |
| 408 |
gregl |
3.15 |
} |
| 409 |
gregl |
3.1 |
} |
| 410 |
|
|
|
| 411 |
|
|
|
| 412 |
|
|
creatholo(gp) /* create a holodeck output file */ |
| 413 |
|
|
HDGRID *gp; |
| 414 |
|
|
{ |
| 415 |
gregl |
3.12 |
extern char VersionID[]; |
| 416 |
greg |
3.57 |
int32 lastloc, nextloc; |
| 417 |
gregl |
3.29 |
int n; |
| 418 |
gregl |
3.10 |
int fd; |
| 419 |
gregl |
3.1 |
FILE *fp; |
| 420 |
|
|
/* open & truncate file */ |
| 421 |
|
|
if ((fp = fopen(hdkfile, "w+")) == NULL) { |
| 422 |
|
|
sprintf(errmsg, "cannot open \"%s\" for writing", hdkfile); |
| 423 |
|
|
error(SYSTEM, errmsg); |
| 424 |
|
|
} |
| 425 |
|
|
/* write information header */ |
| 426 |
|
|
newheader("RADIANCE", fp); |
| 427 |
gregl |
3.12 |
fprintf(fp, "SOFTWARE= %s\n", VersionID); |
| 428 |
gregl |
3.1 |
printvars(fp); |
| 429 |
|
|
fputformat(HOLOFMT, fp); |
| 430 |
|
|
fputc('\n', fp); |
| 431 |
gregl |
3.29 |
putw(HOLOMAGIC, fp); /* put magic number */ |
| 432 |
gregl |
3.10 |
fd = dup(fileno(fp)); |
| 433 |
|
|
fclose(fp); /* flush and close stdio stream */ |
| 434 |
greg |
3.56 |
lastloc = lseek(fd, (off_t)0, 2); |
| 435 |
gregl |
3.29 |
for (n = vdef(SECTION); n--; gp++) { /* initialize each section */ |
| 436 |
|
|
nextloc = 0L; |
| 437 |
|
|
write(fd, (char *)&nextloc, sizeof(nextloc)); |
| 438 |
|
|
hdinit(fd, gp); /* writes beam index */ |
| 439 |
|
|
if (!n) |
| 440 |
|
|
break; |
| 441 |
|
|
nextloc = hdfilen(fd); /* write section pointer */ |
| 442 |
greg |
3.52 |
if (lseek(fd, (off_t)lastloc, 0) < 0) |
| 443 |
gregl |
3.29 |
error(SYSTEM, |
| 444 |
|
|
"cannot seek on holodeck file in creatholo"); |
| 445 |
|
|
write(fd, (char *)&nextloc, sizeof(nextloc)); |
| 446 |
greg |
3.52 |
lseek(fd, (off_t)(lastloc=nextloc), 0); |
| 447 |
gregl |
3.29 |
} |
| 448 |
gregl |
3.1 |
} |
| 449 |
|
|
|
| 450 |
|
|
|
| 451 |
gwlarson |
3.42 |
int |
| 452 |
gregl |
3.1 |
headline(s) /* process information header line */ |
| 453 |
|
|
char *s; |
| 454 |
|
|
{ |
| 455 |
|
|
extern char FMTSTR[]; |
| 456 |
|
|
register char *cp; |
| 457 |
|
|
char fmt[32]; |
| 458 |
|
|
|
| 459 |
gregl |
3.2 |
if (formatval(fmt, s)) { |
| 460 |
gregl |
3.1 |
if (strcmp(fmt, HOLOFMT)) { |
| 461 |
|
|
sprintf(errmsg, "%s file \"%s\" has %s%s", |
| 462 |
|
|
HOLOFMT, hdkfile, FMTSTR, fmt); |
| 463 |
|
|
error(USER, errmsg); |
| 464 |
|
|
} |
| 465 |
gwlarson |
3.42 |
return(0); |
| 466 |
gregl |
3.1 |
} |
| 467 |
|
|
for (cp = s; *cp; cp++) /* take off any comments */ |
| 468 |
|
|
if (*cp == '#') { |
| 469 |
|
|
*cp = '\0'; |
| 470 |
|
|
break; |
| 471 |
|
|
} |
| 472 |
|
|
setvariable(s, matchvar); /* don't flag errors */ |
| 473 |
gwlarson |
3.42 |
return(0); |
| 474 |
gregl |
3.1 |
} |
| 475 |
|
|
|
| 476 |
|
|
|
| 477 |
|
|
loadholo() /* start loading a holodeck from fname */ |
| 478 |
|
|
{ |
| 479 |
|
|
FILE *fp; |
| 480 |
gregl |
3.10 |
int fd; |
| 481 |
gregl |
3.29 |
int n; |
| 482 |
greg |
3.57 |
int32 nextloc; |
| 483 |
gwlarson |
3.51 |
|
| 484 |
|
|
if (ncprocs > 0 & force >= 0) |
| 485 |
|
|
fp = fopen(hdkfile, "r+"); |
| 486 |
|
|
else |
| 487 |
|
|
fp = NULL; |
| 488 |
|
|
if (fp == NULL) { |
| 489 |
|
|
if ((fp = fopen(hdkfile, "r")) == NULL) { |
| 490 |
|
|
sprintf(errmsg, "cannot open \"%s\"", hdkfile); |
| 491 |
|
|
error(SYSTEM, errmsg); |
| 492 |
|
|
} |
| 493 |
|
|
if (ncprocs > 0) { |
| 494 |
|
|
sprintf(errmsg, |
| 495 |
|
|
"\"%s\" opened read-only; new rays will be discarded", |
| 496 |
|
|
hdkfile); |
| 497 |
|
|
error(WARNING, errmsg); |
| 498 |
|
|
force = -1; |
| 499 |
|
|
} |
| 500 |
gregl |
3.1 |
} |
| 501 |
|
|
/* load variables from header */ |
| 502 |
|
|
getheader(fp, headline, NULL); |
| 503 |
|
|
/* check magic number */ |
| 504 |
|
|
if (getw(fp) != HOLOMAGIC) { |
| 505 |
|
|
sprintf(errmsg, "bad magic number in holodeck file \"%s\"", |
| 506 |
|
|
hdkfile); |
| 507 |
|
|
error(USER, errmsg); |
| 508 |
|
|
} |
| 509 |
gregl |
3.29 |
nextloc = ftell(fp); /* get stdio position */ |
| 510 |
gregl |
3.10 |
fd = dup(fileno(fp)); |
| 511 |
|
|
fclose(fp); /* done with stdio */ |
| 512 |
gregl |
3.29 |
for (n = 0; nextloc > 0L; n++) { /* initialize each section */ |
| 513 |
greg |
3.52 |
lseek(fd, (off_t)nextloc, 0); |
| 514 |
gregl |
3.29 |
read(fd, (char *)&nextloc, sizeof(nextloc)); |
| 515 |
|
|
hdinit(fd, NULL); |
| 516 |
|
|
} |
| 517 |
|
|
if (n != vdef(SECTION)) { |
| 518 |
|
|
sprintf(errmsg, "number of sections does not match %s setting", |
| 519 |
|
|
vnam(SECTION)); |
| 520 |
|
|
error(WARNING, errmsg); |
| 521 |
|
|
} |
| 522 |
gregl |
3.1 |
} |
| 523 |
|
|
|
| 524 |
|
|
|
| 525 |
|
|
done_packets(pl) /* handle finished packets */ |
| 526 |
|
|
PACKET *pl; |
| 527 |
|
|
{ |
| 528 |
gregl |
3.13 |
static int n2flush = 0; |
| 529 |
gregl |
3.1 |
register PACKET *p; |
| 530 |
|
|
|
| 531 |
|
|
while (pl != NULL) { |
| 532 |
|
|
p = pl; pl = p->next; p->next = NULL; |
| 533 |
|
|
if (p->nr > 0) { /* add to holodeck */ |
| 534 |
greg |
3.53 |
bcopy((void *)p->ra, |
| 535 |
|
|
(void *)hdnewrays(hdlist[p->hd],p->bi,p->nr), |
| 536 |
gregl |
3.1 |
p->nr*sizeof(RAYVAL)); |
| 537 |
|
|
if (outdev != NULL) /* display it */ |
| 538 |
gregl |
3.7 |
disp_packet((PACKHEAD *)p); |
| 539 |
gwlarson |
3.49 |
if (hdcachesize <= 0) |
| 540 |
gregl |
3.33 |
n2flush++; |
| 541 |
gregl |
3.6 |
nraysdone += p->nr; |
| 542 |
|
|
npacksdone++; |
| 543 |
gregl |
3.33 |
p->nr = 0; |
| 544 |
gregl |
3.1 |
} |
| 545 |
gregl |
3.33 |
p->next = freepacks; /* push onto free list */ |
| 546 |
gregl |
3.1 |
freepacks = p; |
| 547 |
gregl |
3.5 |
} |
| 548 |
gwlarson |
3.50 |
if (n2flush >= RTFLUSH) { |
| 549 |
gwlarson |
3.46 |
if (outdev != NULL) |
| 550 |
|
|
hdsync(NULL, 1); |
| 551 |
gwlarson |
3.41 |
else |
| 552 |
gwlarson |
3.46 |
hdflush(NULL); |
| 553 |
gregl |
3.13 |
n2flush = 0; |
| 554 |
gregl |
3.1 |
} |
| 555 |
|
|
} |
| 556 |
|
|
|
| 557 |
|
|
|
| 558 |
|
|
rootname(rn, fn) /* remove tail from end of fn */ |
| 559 |
|
|
register char *rn, *fn; |
| 560 |
|
|
{ |
| 561 |
|
|
char *tp, *dp; |
| 562 |
|
|
|
| 563 |
|
|
for (tp = NULL, dp = rn; *rn = *fn++; rn++) |
| 564 |
gregl |
3.22 |
if (*rn == '/') |
| 565 |
gregl |
3.1 |
dp = rn; |
| 566 |
|
|
else if (*rn == '.') |
| 567 |
|
|
tp = rn; |
| 568 |
|
|
if (tp != NULL && tp > dp) |
| 569 |
|
|
*tp = '\0'; |
| 570 |
|
|
} |
| 571 |
|
|
|
| 572 |
|
|
|
| 573 |
|
|
badvalue(vc) /* report bad variable value and exit */ |
| 574 |
|
|
int vc; |
| 575 |
|
|
{ |
| 576 |
|
|
sprintf(errmsg, "bad value for variable '%s'", vnam(vc)); |
| 577 |
|
|
error(USER, errmsg); |
| 578 |
|
|
} |
| 579 |
|
|
|
| 580 |
|
|
|
| 581 |
greg |
3.52 |
void |
| 582 |
gregl |
3.1 |
eputs(s) /* put error message to stderr */ |
| 583 |
|
|
register char *s; |
| 584 |
|
|
{ |
| 585 |
|
|
static int midline = 0; |
| 586 |
|
|
|
| 587 |
|
|
if (!*s) |
| 588 |
|
|
return; |
| 589 |
|
|
if (!midline++) { /* prepend line with program name */ |
| 590 |
|
|
fputs(progname, stderr); |
| 591 |
|
|
fputs(": ", stderr); |
| 592 |
|
|
} |
| 593 |
|
|
fputs(s, stderr); |
| 594 |
|
|
if (s[strlen(s)-1] == '\n') { |
| 595 |
|
|
fflush(stderr); |
| 596 |
|
|
midline = 0; |
| 597 |
|
|
} |
| 598 |
|
|
} |
| 599 |
|
|
|
| 600 |
|
|
|
| 601 |
greg |
3.52 |
void |
| 602 |
gregl |
3.1 |
quit(ec) /* exit program gracefully */ |
| 603 |
|
|
int ec; |
| 604 |
|
|
{ |
| 605 |
|
|
int status = 0; |
| 606 |
|
|
|
| 607 |
gregl |
3.24 |
if (hdlist[0] != NULL) { /* close holodeck */ |
| 608 |
gregl |
3.21 |
if (nprocs > 0) |
| 609 |
gregl |
3.24 |
status = done_rtrace(); /* calls hdsync() */ |
| 610 |
gwlarson |
3.51 |
if (ncprocs > 0 & force >= 0 && vdef(REPORT)) { |
| 611 |
greg |
3.54 |
off_t fsiz, fuse; |
| 612 |
gregl |
3.19 |
fsiz = hdfilen(hdlist[0]->fd); |
| 613 |
|
|
fuse = hdfiluse(hdlist[0]->fd, 1); |
| 614 |
|
|
fprintf(stderr, |
| 615 |
gregl |
3.3 |
"%s: %.1f Mbyte holodeck file, %.1f%% fragmentation\n", |
| 616 |
gregl |
3.19 |
hdkfile, fsiz/(1024.*1024.), |
| 617 |
|
|
100.*(fsiz-fuse)/fsiz); |
| 618 |
|
|
} |
| 619 |
gregl |
3.1 |
} |
| 620 |
gregl |
3.12 |
if (orig_mode >= 0) /* reset holodeck access mode */ |
| 621 |
|
|
fchmod(hdlist[0]->fd, orig_mode); |
| 622 |
gregl |
3.11 |
if (outdev != NULL) /* close display */ |
| 623 |
|
|
disp_close(); |
| 624 |
gregl |
3.1 |
exit(ec ? ec : status); /* exit */ |
| 625 |
|
|
} |
