| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: xform.c,v 2.28 2003/06/30 14:59:11 schorsch Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* xform.c - program to transform object files. |
| 6 |
* Transformations must preserve aspect ratio. |
| 7 |
* |
| 8 |
* 10/19/85 |
| 9 |
* 11/6/86 Finally added error checking! |
| 10 |
*/ |
| 11 |
|
| 12 |
#include <ctype.h> |
| 13 |
#ifndef _WIN32 |
| 14 |
#include <unistd.h> |
| 15 |
#endif |
| 16 |
|
| 17 |
#include "standard.h" |
| 18 |
#include "platform.h" |
| 19 |
#include "paths.h" |
| 20 |
#include "object.h" |
| 21 |
#include "otypes.h" |
| 22 |
|
| 23 |
int xac; /* global xform argument count */ |
| 24 |
char **xav; /* global xform argument pointer */ |
| 25 |
int xfa; /* start of xf arguments */ |
| 26 |
|
| 27 |
XF tot; /* total transformation */ |
| 28 |
int reverse; /* boolean true if scene mirrored */ |
| 29 |
|
| 30 |
int invert; /* boolean true to invert surfaces */ |
| 31 |
|
| 32 |
int expand; /* boolean true to expand commands */ |
| 33 |
|
| 34 |
char *newmod; /* new modifier for surfaces */ |
| 35 |
|
| 36 |
char *idprefix; /* prefix for object identifiers */ |
| 37 |
|
| 38 |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */ |
| 39 |
|
| 40 |
short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
| 41 |
|
| 42 |
int nrept = 1; /* number of array repetitions */ |
| 43 |
|
| 44 |
int stdinused = 0; /* stdin has been used by -f option? */ |
| 45 |
|
| 46 |
char mainfn[PATH_MAX]; /* main file name */ |
| 47 |
FILE *mainfp = NULL; /* main file pointer */ |
| 48 |
|
| 49 |
#define progname (xav[0]) |
| 50 |
|
| 51 |
|
| 52 |
main(argc, argv) /* get transform options and transform file */ |
| 53 |
int argc; |
| 54 |
char *argv[]; |
| 55 |
{ |
| 56 |
int mal_prefix = 0; |
| 57 |
char *fname; |
| 58 |
int a; |
| 59 |
/* check for argument list file */ |
| 60 |
for (a = 1; a < argc; a++) |
| 61 |
if (!strcmp(argv[a], "-f")) |
| 62 |
return(doargf(argc, argv, a)); |
| 63 |
/* check for regular array */ |
| 64 |
for (a = 1; a < argc; a++) |
| 65 |
if (!strcmp(argv[a], "-a")) |
| 66 |
return(doarray(argc, argv, a)); |
| 67 |
|
| 68 |
initotypes(); /* initialize */ |
| 69 |
invert = 0; |
| 70 |
expand = 1; |
| 71 |
newmod = NULL; |
| 72 |
idprefix = NULL; |
| 73 |
|
| 74 |
for (a = 1; a < argc; a++) { |
| 75 |
if (argv[a][0] == '-') |
| 76 |
switch (argv[a][1]) { |
| 77 |
case 'm': |
| 78 |
if (argv[a][2] | a+1 >= argc) |
| 79 |
break; |
| 80 |
a++; |
| 81 |
if (newmod == NULL) |
| 82 |
newmod = argv[a]; |
| 83 |
continue; |
| 84 |
case 'n': |
| 85 |
if (argv[a][2] | a+1 >= argc) |
| 86 |
break; |
| 87 |
a++; |
| 88 |
if (idprefix == NULL) |
| 89 |
idprefix = argv[a]; |
| 90 |
else { |
| 91 |
register char *newp; |
| 92 |
newp = (char *)malloc(strlen(idprefix)+ |
| 93 |
strlen(argv[a])+2); |
| 94 |
if (newp == NULL) |
| 95 |
exit(2); |
| 96 |
sprintf(newp, "%s.%s", |
| 97 |
idprefix, argv[a]); |
| 98 |
if (mal_prefix++) |
| 99 |
free((void *)idprefix); |
| 100 |
idprefix = newp; |
| 101 |
} |
| 102 |
continue; |
| 103 |
case 'c': |
| 104 |
if (argv[a][2]) |
| 105 |
break; |
| 106 |
expand = 0; |
| 107 |
continue; |
| 108 |
case 'e': |
| 109 |
if (argv[a][2]) |
| 110 |
break; |
| 111 |
expand = 1; |
| 112 |
continue; |
| 113 |
case 'I': |
| 114 |
if (argv[a][2]) |
| 115 |
break; |
| 116 |
invert = !invert; |
| 117 |
continue; |
| 118 |
} |
| 119 |
break; |
| 120 |
} |
| 121 |
|
| 122 |
xav = argv; |
| 123 |
xfa = a; |
| 124 |
|
| 125 |
a += xf(&tot, argc-a, argv+a); |
| 126 |
|
| 127 |
if (reverse = tot.sca < 0.0) |
| 128 |
tot.sca = -tot.sca; |
| 129 |
if (invert) |
| 130 |
reverse = !reverse; |
| 131 |
|
| 132 |
if (a < argc && argv[a][0] == '-') { |
| 133 |
fprintf(stderr, "%s: command line error at '%s'\n", |
| 134 |
argv[0], argv[a]); |
| 135 |
exit(1); |
| 136 |
} |
| 137 |
|
| 138 |
xac = a; |
| 139 |
/* simple header */ |
| 140 |
putchar('#'); |
| 141 |
for (a = 0; a < xac; a++) |
| 142 |
printf(" %s", xav[a]); |
| 143 |
putchar('\n'); |
| 144 |
/* transform input */ |
| 145 |
if (xac == argc) { |
| 146 |
if (stdinused) { |
| 147 |
fprintf(stderr, "%s: cannot use stdin more than once\n", |
| 148 |
argv[0]); |
| 149 |
exit(1); |
| 150 |
} |
| 151 |
openmain(NULL); |
| 152 |
xform(mainfn, mainfp); |
| 153 |
} else |
| 154 |
for (a = xac; a < argc; a++) { |
| 155 |
openmain(argv[a]); |
| 156 |
xform(mainfn, mainfp); |
| 157 |
} |
| 158 |
|
| 159 |
if (mal_prefix) |
| 160 |
free((void *)idprefix); |
| 161 |
return(0); |
| 162 |
} |
| 163 |
|
| 164 |
|
| 165 |
doargf(ac, av, fi) /* take argument list from file */ |
| 166 |
char **av; |
| 167 |
int ac, fi; |
| 168 |
{ |
| 169 |
int inquote; |
| 170 |
char *newav[256], **avp; |
| 171 |
char argbuf[1024]; |
| 172 |
char newid[128]; |
| 173 |
char *oldid; |
| 174 |
register char *cp; |
| 175 |
FILE *argfp; |
| 176 |
int n, i, k, newac, err; |
| 177 |
|
| 178 |
if (fi >= ac-1 || (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) { |
| 179 |
fprintf(stderr, "%s: missing file for -f option\n", av[0]); |
| 180 |
exit(1); |
| 181 |
} |
| 182 |
if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') { |
| 183 |
if (stdinused++) { |
| 184 |
fprintf(stderr, |
| 185 |
"%s: cannot use stdin more than once\n", |
| 186 |
av[0]); |
| 187 |
exit(1); |
| 188 |
} |
| 189 |
argfp = stdin; |
| 190 |
n = 100; /* we just don't know! */ |
| 191 |
} else { |
| 192 |
if ((argfp = fopen(av[fi+1], "r")) == NULL) { |
| 193 |
fprintf(stderr, |
| 194 |
"%s: cannot open argument file \"%s\"\n", |
| 195 |
av[0], av[fi+1]); |
| 196 |
exit(1); |
| 197 |
} |
| 198 |
n = 0; /* count number of lines in file */ |
| 199 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) |
| 200 |
n += argbuf[0] && argbuf[0] != '#'; |
| 201 |
if (!n) { |
| 202 |
fprintf(stderr, "%s: empty argument file \"%s\"\n", |
| 203 |
av[0], av[fi+1]); |
| 204 |
exit(1); |
| 205 |
} |
| 206 |
nrept *= n; |
| 207 |
rewind(argfp); |
| 208 |
} |
| 209 |
err = 0; k = 0; /* read each arg list and call main */ |
| 210 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) { |
| 211 |
if (!argbuf[0] || argbuf[0] == '#') |
| 212 |
continue; |
| 213 |
avp = newav+2; |
| 214 |
avp[0] = av[0]; |
| 215 |
for (i = 1; i < fi; i++) |
| 216 |
avp[i] = av[i]; |
| 217 |
newac = i; |
| 218 |
cp = argbuf; /* parse new words */ |
| 219 |
if (*cp == '!') cp++; |
| 220 |
if (!strncmp(cp, "xform ", 6)) cp += 6; |
| 221 |
inquote = 0; |
| 222 |
for ( ; ; ) { |
| 223 |
skipspaces: |
| 224 |
while (isspace(*cp)) /* nullify spaces */ |
| 225 |
*cp++ = '\0'; |
| 226 |
if ((*cp == '"' | *cp == '\'')) |
| 227 |
inquote = *cp++; |
| 228 |
if (!*cp) /* all done? */ |
| 229 |
break; |
| 230 |
if (cp[0] == '\\' && cp[1]) |
| 231 |
if (*++cp == '\n') |
| 232 |
goto skipspaces; |
| 233 |
avp[newac++] = cp; /* add argument to list */ |
| 234 |
if (inquote) { |
| 235 |
while (*++cp) |
| 236 |
if (*cp == inquote) { |
| 237 |
*cp++ = '\0'; |
| 238 |
break; |
| 239 |
} |
| 240 |
} else { |
| 241 |
while (*++cp && !isspace(*cp)) |
| 242 |
; |
| 243 |
} |
| 244 |
} |
| 245 |
for (i = fi+2; i < ac; i++) |
| 246 |
avp[newac++] = av[i]; |
| 247 |
avp[newac] = NULL; |
| 248 |
oldid = NULL; |
| 249 |
for (i = 2; i < newac; i++) |
| 250 |
if (!strcmp(avp[i-1], "-n")) { |
| 251 |
oldid = avp[i]; |
| 252 |
avp[i] = newid; |
| 253 |
break; |
| 254 |
} |
| 255 |
if (oldid == NULL) { |
| 256 |
newav[0] = av[0]; |
| 257 |
newav[1] = "-n"; |
| 258 |
newav[2] = newid; |
| 259 |
avp = newav; |
| 260 |
newac += 2; |
| 261 |
} |
| 262 |
if (oldid == NULL) |
| 263 |
sprintf(newid, "i%d", k); |
| 264 |
else |
| 265 |
sprintf(newid, "%s.%d", oldid, k); |
| 266 |
err |= main(newac, avp); |
| 267 |
k++; |
| 268 |
} |
| 269 |
fclose(argfp); |
| 270 |
return(err); |
| 271 |
} |
| 272 |
|
| 273 |
|
| 274 |
doarray(ac, av, ai) /* make array */ |
| 275 |
char **av; |
| 276 |
int ac, ai; |
| 277 |
{ |
| 278 |
char *newav[256], **avp; |
| 279 |
char newid[128], repts[32]; |
| 280 |
char *oldid = NULL; |
| 281 |
int n, i, err; |
| 282 |
|
| 283 |
if (ai >= ac-1 || (n = atoi(av[ai+1])) <= 0) { |
| 284 |
fprintf(stderr, "%s: missing count for -a option\n", av[0]); |
| 285 |
exit(1); |
| 286 |
} |
| 287 |
nrept *= n; |
| 288 |
avp = newav+2; |
| 289 |
avp[0] = av[0]; |
| 290 |
for (i = 1; i < ac; i++) |
| 291 |
if (!strcmp(av[i-1], "-n")) { |
| 292 |
oldid = av[i]; |
| 293 |
avp[i] = newid; |
| 294 |
} else |
| 295 |
avp[i] = av[i]; |
| 296 |
avp[ai] = "-i"; |
| 297 |
avp[ai+1] = repts; |
| 298 |
avp[i] = NULL; |
| 299 |
if (oldid == NULL) { |
| 300 |
newav[0] = av[0]; |
| 301 |
newav[1] = "-n"; |
| 302 |
newav[2] = newid; |
| 303 |
avp = newav; |
| 304 |
ac += 2; |
| 305 |
} |
| 306 |
err = 0; |
| 307 |
for (i = 0; i < n; i++) { |
| 308 |
if (oldid == NULL) |
| 309 |
sprintf(newid, "a%d", i); |
| 310 |
else |
| 311 |
sprintf(newid, "%s.%d", oldid, i); |
| 312 |
sprintf(repts, "%d", i); |
| 313 |
err |= main(ac, avp); |
| 314 |
} |
| 315 |
return(err); |
| 316 |
} |
| 317 |
|
| 318 |
|
| 319 |
xform(name, fin) /* transform stream by tot.xfm */ |
| 320 |
char *name; |
| 321 |
register FILE *fin; |
| 322 |
{ |
| 323 |
int nobjs = 0; |
| 324 |
register int c; |
| 325 |
|
| 326 |
while ((c = getc(fin)) != EOF) { |
| 327 |
if (isspace(c)) /* blank */ |
| 328 |
continue; |
| 329 |
if (c == '#') { /* comment */ |
| 330 |
putchar(c); |
| 331 |
do { |
| 332 |
if ((c = getc(fin)) == EOF) |
| 333 |
return; |
| 334 |
putchar(c); |
| 335 |
} while (c != '\n'); |
| 336 |
} else if (c == '!') { /* command */ |
| 337 |
ungetc(c, fin); |
| 338 |
xfcomm(name, fin); |
| 339 |
nobjs++; |
| 340 |
} else { /* object */ |
| 341 |
ungetc(c, fin); |
| 342 |
xfobject(name, fin); |
| 343 |
nobjs++; |
| 344 |
} |
| 345 |
} |
| 346 |
if (nobjs == 0) |
| 347 |
fprintf(stderr, "%s: (%s): warning - empty file\n", |
| 348 |
progname, name); |
| 349 |
} |
| 350 |
|
| 351 |
|
| 352 |
xfcomm(fname, fin) /* transform a command */ |
| 353 |
char *fname; |
| 354 |
FILE *fin; |
| 355 |
{ |
| 356 |
FILE *pin; |
| 357 |
char buf[512]; |
| 358 |
int i; |
| 359 |
|
| 360 |
fgetline(buf, sizeof(buf), fin); |
| 361 |
if (expand) { |
| 362 |
if ((pin = popen(buf+1, "r")) == NULL) { |
| 363 |
fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
| 364 |
progname, fname, buf); |
| 365 |
exit(1); |
| 366 |
} |
| 367 |
xform(buf, pin); |
| 368 |
pclose(pin); |
| 369 |
} else { |
| 370 |
printf("\n%s", buf); |
| 371 |
if (xac > 1) { |
| 372 |
printf(" | %s -e", xav[0]); /* expand next time */ |
| 373 |
for (i = 1; i < xac; i++) |
| 374 |
if (i >= xfa || strcmp(xav[i], "-c")) |
| 375 |
printf(" %s", xav[i]); |
| 376 |
} |
| 377 |
putchar('\n'); |
| 378 |
} |
| 379 |
} |
| 380 |
|
| 381 |
|
| 382 |
xfobject(fname, fin) /* transform an object */ |
| 383 |
char *fname; |
| 384 |
FILE *fin; |
| 385 |
{ |
| 386 |
char typ[16], nam[MAXSTR]; |
| 387 |
int fn; |
| 388 |
/* modifier and type */ |
| 389 |
strcpy(typ, "EOF"); |
| 390 |
fgetword(nam, sizeof(nam), fin); |
| 391 |
fgetword(typ, sizeof(typ), fin); |
| 392 |
if ((fn = otype(typ)) < 0) { |
| 393 |
fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
| 394 |
progname, fname, typ); |
| 395 |
exit(1); |
| 396 |
} |
| 397 |
if (ismodifier(fn)) |
| 398 |
printf("\n%s %s ", nam, typ); |
| 399 |
else |
| 400 |
printf("\n%s %s ", newmod != NULL ? newmod : nam, |
| 401 |
invert ? ofun[tinvers[fn]].funame : typ); |
| 402 |
/* object name */ |
| 403 |
fgetword(nam, sizeof(nam), fin); |
| 404 |
if (idprefix == NULL || ismodifier(fn)) |
| 405 |
printf("%s\n", nam); |
| 406 |
else |
| 407 |
printf("%s.%s\n", idprefix, nam); |
| 408 |
/* transform arguments */ |
| 409 |
if ((*ofun[fn].funp)(fin) < 0) { |
| 410 |
fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
| 411 |
progname, fname, ofun[fn].funame, nam); |
| 412 |
exit(1); |
| 413 |
} |
| 414 |
} |
| 415 |
|
| 416 |
|
| 417 |
o_default(fin) /* pass on arguments unchanged */ |
| 418 |
FILE *fin; |
| 419 |
{ |
| 420 |
register int i; |
| 421 |
FUNARGS fa; |
| 422 |
|
| 423 |
if (readfargs(&fa, fin) != 1) |
| 424 |
return(-1); |
| 425 |
/* string arguments */ |
| 426 |
printf("%d", fa.nsargs); |
| 427 |
for (i = 0; i < fa.nsargs; i++) { |
| 428 |
fputc(' ', stdout); |
| 429 |
fputword(fa.sarg[i], stdout); |
| 430 |
} |
| 431 |
printf("\n"); |
| 432 |
#ifdef IARGS |
| 433 |
/* integer arguments */ |
| 434 |
printf("%d", fa.niargs); |
| 435 |
for (i = 0; i < fa.niargs; i++) |
| 436 |
printf(" %d", fa.iarg[i]); |
| 437 |
printf("\n"); |
| 438 |
#else |
| 439 |
printf("0\n"); |
| 440 |
#endif |
| 441 |
/* float arguments */ |
| 442 |
printf("%d", fa.nfargs); |
| 443 |
for (i = 0; i < fa.nfargs; i++) |
| 444 |
printf(" %18.12g", fa.farg[i]); |
| 445 |
printf("\n"); |
| 446 |
freefargs(&fa); |
| 447 |
return(0); |
| 448 |
} |
| 449 |
|
| 450 |
|
| 451 |
addxform(fin) /* add xf arguments to strings */ |
| 452 |
FILE *fin; |
| 453 |
{ |
| 454 |
register int i; |
| 455 |
int resetarr = 0; |
| 456 |
FUNARGS fa; |
| 457 |
|
| 458 |
if (readfargs(&fa, fin) != 1) |
| 459 |
return(-1); |
| 460 |
/* string arguments */ |
| 461 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
| 462 |
resetarr = 2; |
| 463 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
| 464 |
for (i = 0; i < fa.nsargs; i++) { |
| 465 |
fputc(' ', stdout); |
| 466 |
fputword(fa.sarg[i], stdout); |
| 467 |
} |
| 468 |
if (resetarr) |
| 469 |
printf(" -i 1"); |
| 470 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
| 471 |
printf(" %s", xav[i]); |
| 472 |
printf("\n"); |
| 473 |
#ifdef IARGS |
| 474 |
/* integer arguments */ |
| 475 |
printf("%d", fa.niargs); |
| 476 |
for (i = 0; i < fa.niargs; i++) |
| 477 |
printf(" %d", fa.iarg[i]); |
| 478 |
printf("\n"); |
| 479 |
#else |
| 480 |
printf("0\n"); |
| 481 |
#endif |
| 482 |
/* float arguments */ |
| 483 |
printf("%d", fa.nfargs); |
| 484 |
for (i = 0; i < fa.nfargs; i++) |
| 485 |
printf(" %18.12g", fa.farg[i]); |
| 486 |
printf("\n"); |
| 487 |
freefargs(&fa); |
| 488 |
return(0); |
| 489 |
} |
| 490 |
|
| 491 |
|
| 492 |
alias(fin) /* transfer alias */ |
| 493 |
FILE *fin; |
| 494 |
{ |
| 495 |
char aliasnm[MAXSTR]; |
| 496 |
|
| 497 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
| 498 |
return(-1); |
| 499 |
printf("\t%s\n", aliasnm); |
| 500 |
return(0); |
| 501 |
} |
| 502 |
|
| 503 |
|
| 504 |
m_glow(fin) /* transform arguments for proximity light */ |
| 505 |
FILE *fin; |
| 506 |
{ |
| 507 |
FUNARGS fa; |
| 508 |
|
| 509 |
if (readfargs(&fa, fin) != 1) |
| 510 |
return(-1); |
| 511 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 512 |
return(-1); |
| 513 |
printf("0\n0\n4"); |
| 514 |
printf(" %18.12g %18.12g %18.12g", |
| 515 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
| 516 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
| 517 |
freefargs(&fa); |
| 518 |
return(0); |
| 519 |
} |
| 520 |
|
| 521 |
|
| 522 |
m_spot(fin) /* transform arguments for spotlight */ |
| 523 |
FILE *fin; |
| 524 |
{ |
| 525 |
FVECT v; |
| 526 |
FUNARGS fa; |
| 527 |
|
| 528 |
if (readfargs(&fa, fin) != 1) |
| 529 |
return(-1); |
| 530 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
| 531 |
return(-1); |
| 532 |
printf("0\n0\n7"); |
| 533 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 534 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
| 535 |
multv3(v, fa.farg+4, tot.xfm); |
| 536 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 537 |
freefargs(&fa); |
| 538 |
return(0); |
| 539 |
} |
| 540 |
|
| 541 |
|
| 542 |
m_mist(fin) /* transform arguments for mist */ |
| 543 |
FILE *fin; |
| 544 |
{ |
| 545 |
FUNARGS fa; |
| 546 |
int i; |
| 547 |
|
| 548 |
if (readfargs(&fa, fin) != 1) |
| 549 |
return(-1); |
| 550 |
if (fa.nfargs > 7) |
| 551 |
return(-1); |
| 552 |
printf("%d", fa.nsargs); |
| 553 |
if (idprefix == NULL) |
| 554 |
for (i = 0; i < fa.nsargs; i++) |
| 555 |
printf(" %s", fa.sarg[i]); |
| 556 |
else |
| 557 |
for (i = 0; i < fa.nsargs; i++) { |
| 558 |
char sname[256], *sp; |
| 559 |
register char *cp1, *cp2 = sname; |
| 560 |
/* add idprefix */ |
| 561 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
| 562 |
for (cp1 = idprefix; *cp1; ) |
| 563 |
*cp2++ = *cp1++; |
| 564 |
*cp2++ = '.'; |
| 565 |
for (cp1 = sp; *cp1 && |
| 566 |
(*cp2++ = *cp1++) != '>'; ) |
| 567 |
; |
| 568 |
} |
| 569 |
*cp2 = '\0'; |
| 570 |
printf(" %s", sname); |
| 571 |
} |
| 572 |
printf("\n0\n%d", fa.nfargs); |
| 573 |
if (fa.nfargs > 2) |
| 574 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
| 575 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
| 576 |
for (i = 3; i < fa.nfargs; i++) |
| 577 |
printf(" %12.6g", fa.farg[i]); |
| 578 |
printf("\n"); |
| 579 |
freefargs(&fa); |
| 580 |
return(0); |
| 581 |
} |
| 582 |
|
| 583 |
|
| 584 |
m_dielectric(fin) /* transform arguments for dielectric */ |
| 585 |
FILE *fin; |
| 586 |
{ |
| 587 |
FUNARGS fa; |
| 588 |
|
| 589 |
if (readfargs(&fa, fin) != 1) |
| 590 |
return(-1); |
| 591 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
| 592 |
return(-1); |
| 593 |
printf("0\n0\n5"); |
| 594 |
printf(" %12.6g %12.6g %12.6g", |
| 595 |
pow(fa.farg[0], 1.0/tot.sca), |
| 596 |
pow(fa.farg[1], 1.0/tot.sca), |
| 597 |
pow(fa.farg[2], 1.0/tot.sca)); |
| 598 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
| 599 |
freefargs(&fa); |
| 600 |
return(0); |
| 601 |
} |
| 602 |
|
| 603 |
|
| 604 |
m_interface(fin) /* transform arguments for interface */ |
| 605 |
FILE *fin; |
| 606 |
{ |
| 607 |
FUNARGS fa; |
| 608 |
|
| 609 |
if (readfargs(&fa, fin) != 1) |
| 610 |
return(-1); |
| 611 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 612 |
return(-1); |
| 613 |
printf("0\n0\n8\n"); |
| 614 |
printf("%12.6g %12.6g %12.6g", |
| 615 |
pow(fa.farg[0], 1.0/tot.sca), |
| 616 |
pow(fa.farg[1], 1.0/tot.sca), |
| 617 |
pow(fa.farg[2], 1.0/tot.sca)); |
| 618 |
printf(" %12.6g\n", fa.farg[3]); |
| 619 |
printf("%12.6g %12.6g %12.6g", |
| 620 |
pow(fa.farg[4], 1.0/tot.sca), |
| 621 |
pow(fa.farg[5], 1.0/tot.sca), |
| 622 |
pow(fa.farg[6], 1.0/tot.sca)); |
| 623 |
printf(" %12.6g\n", fa.farg[7]); |
| 624 |
freefargs(&fa); |
| 625 |
return(0); |
| 626 |
} |
| 627 |
|
| 628 |
|
| 629 |
text(fin) /* transform text arguments */ |
| 630 |
FILE *fin; |
| 631 |
{ |
| 632 |
int i; |
| 633 |
FVECT v; |
| 634 |
FUNARGS fa; |
| 635 |
|
| 636 |
if (readfargs(&fa, fin) != 1) |
| 637 |
return(-1); |
| 638 |
if (fa.nfargs < 9) |
| 639 |
return(-1); |
| 640 |
/* string arguments */ |
| 641 |
printf("%d", fa.nsargs); |
| 642 |
for (i = 0; i < fa.nsargs; i++) { |
| 643 |
fputc(' ', stdout); |
| 644 |
fputword(fa.sarg[i], stdout); |
| 645 |
} |
| 646 |
printf("\n0\n%d\n", fa.nfargs); |
| 647 |
/* anchor point */ |
| 648 |
multp3(v, fa.farg, tot.xfm); |
| 649 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 650 |
/* right vector */ |
| 651 |
multv3(v, fa.farg+3, tot.xfm); |
| 652 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
| 653 |
/* down vector */ |
| 654 |
multv3(v, fa.farg+6, tot.xfm); |
| 655 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
| 656 |
/* remaining arguments */ |
| 657 |
for (i = 9; i < fa.nfargs; i++) { |
| 658 |
if (i%3 == 0) |
| 659 |
putchar('\n'); |
| 660 |
printf(" %18.12g", fa.farg[i]); |
| 661 |
} |
| 662 |
putchar('\n'); |
| 663 |
freefargs(&fa); |
| 664 |
return(0); |
| 665 |
} |
| 666 |
|
| 667 |
|
| 668 |
o_source(fin) /* transform source arguments */ |
| 669 |
FILE *fin; |
| 670 |
{ |
| 671 |
FVECT dv; |
| 672 |
FUNARGS fa; |
| 673 |
|
| 674 |
if (readfargs(&fa, fin) != 1) |
| 675 |
return(-1); |
| 676 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 677 |
return(-1); |
| 678 |
/* transform direction vector */ |
| 679 |
multv3(dv, fa.farg, tot.xfm); |
| 680 |
/* output */ |
| 681 |
printf("0\n0\n4"); |
| 682 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 683 |
dv[0], dv[1], dv[2], fa.farg[3]); |
| 684 |
freefargs(&fa); |
| 685 |
return(0); |
| 686 |
} |
| 687 |
|
| 688 |
|
| 689 |
o_sphere(fin) /* transform sphere arguments */ |
| 690 |
FILE *fin; |
| 691 |
{ |
| 692 |
FVECT cent; |
| 693 |
double rad; |
| 694 |
FUNARGS fa; |
| 695 |
|
| 696 |
if (readfargs(&fa, fin) != 1) |
| 697 |
return(-1); |
| 698 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
| 699 |
return(-1); |
| 700 |
|
| 701 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
| 702 |
|
| 703 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
| 704 |
|
| 705 |
printf("0\n0\n4"); |
| 706 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
| 707 |
cent[0], cent[1], cent[2], rad); |
| 708 |
freefargs(&fa); |
| 709 |
return(0); |
| 710 |
} |
| 711 |
|
| 712 |
|
| 713 |
o_face(fin) /* transform face arguments */ |
| 714 |
FILE *fin; |
| 715 |
{ |
| 716 |
FVECT p; |
| 717 |
register int i; |
| 718 |
FUNARGS fa; |
| 719 |
|
| 720 |
if (readfargs(&fa, fin) != 1) |
| 721 |
return(-1); |
| 722 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
| 723 |
return(-1); |
| 724 |
|
| 725 |
printf("0\n0\n%d\n", fa.nfargs); |
| 726 |
|
| 727 |
for (i = 0; i < fa.nfargs; i += 3) { |
| 728 |
if (reverse) |
| 729 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
| 730 |
else |
| 731 |
multp3(p, fa.farg+i, tot.xfm); |
| 732 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
| 733 |
} |
| 734 |
freefargs(&fa); |
| 735 |
return(0); |
| 736 |
} |
| 737 |
|
| 738 |
|
| 739 |
o_cone(fin) /* transform cone and cup arguments */ |
| 740 |
FILE *fin; |
| 741 |
{ |
| 742 |
FVECT p0, p1; |
| 743 |
double r0, r1; |
| 744 |
FUNARGS fa; |
| 745 |
|
| 746 |
if (readfargs(&fa, fin) != 1) |
| 747 |
return(-1); |
| 748 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 749 |
return(-1); |
| 750 |
|
| 751 |
printf("0\n0\n8\n"); |
| 752 |
|
| 753 |
multp3(p0, fa.farg, tot.xfm); |
| 754 |
multp3(p1, fa.farg+3, tot.xfm); |
| 755 |
r0 = fa.farg[6] * tot.sca; |
| 756 |
r1 = fa.farg[7] * tot.sca; |
| 757 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 758 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 759 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 760 |
|
| 761 |
freefargs(&fa); |
| 762 |
return(0); |
| 763 |
} |
| 764 |
|
| 765 |
|
| 766 |
o_cylinder(fin) /* transform cylinder and tube arguments */ |
| 767 |
FILE *fin; |
| 768 |
{ |
| 769 |
FVECT p0, p1; |
| 770 |
double rad; |
| 771 |
FUNARGS fa; |
| 772 |
|
| 773 |
if (readfargs(&fa, fin) != 1) |
| 774 |
return(-1); |
| 775 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
| 776 |
return(-1); |
| 777 |
|
| 778 |
printf("0\n0\n7\n"); |
| 779 |
|
| 780 |
multp3(p0, fa.farg, tot.xfm); |
| 781 |
multp3(p1, fa.farg+3, tot.xfm); |
| 782 |
rad = fa.farg[6] * tot.sca; |
| 783 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 784 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
| 785 |
printf(" %18.12g\n", rad); |
| 786 |
freefargs(&fa); |
| 787 |
return(0); |
| 788 |
} |
| 789 |
|
| 790 |
|
| 791 |
o_ring(fin) /* transform ring arguments */ |
| 792 |
FILE *fin; |
| 793 |
{ |
| 794 |
FVECT p0, pd; |
| 795 |
double r0, r1; |
| 796 |
FUNARGS fa; |
| 797 |
|
| 798 |
if (readfargs(&fa, fin) != 1) |
| 799 |
return(-1); |
| 800 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
| 801 |
return(-1); |
| 802 |
|
| 803 |
printf("0\n0\n8\n"); |
| 804 |
|
| 805 |
multp3(p0, fa.farg, tot.xfm); |
| 806 |
multv3(pd, fa.farg+3, tot.xfm); |
| 807 |
if (invert) { |
| 808 |
pd[0] = -pd[0]; |
| 809 |
pd[1] = -pd[1]; |
| 810 |
pd[2] = -pd[2]; |
| 811 |
} |
| 812 |
r0 = fa.farg[6] * tot.sca; |
| 813 |
r1 = fa.farg[7] * tot.sca; |
| 814 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
| 815 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
| 816 |
printf(" %18.12g %18.12g\n", r0, r1); |
| 817 |
freefargs(&fa); |
| 818 |
return(0); |
| 819 |
} |
| 820 |
|
| 821 |
|
| 822 |
initotypes() /* initialize ofun[] array */ |
| 823 |
{ |
| 824 |
register int i; |
| 825 |
|
| 826 |
if (ofun[OBJ_SOURCE].funp == o_source) |
| 827 |
return; /* done already */ |
| 828 |
/* functions get new transform */ |
| 829 |
for (i = 0; i < NUMOTYPE; i++) |
| 830 |
if (hasfunc(i)) |
| 831 |
ofun[i].funp = addxform; |
| 832 |
/* special cases */ |
| 833 |
ofun[OBJ_SOURCE].funp = o_source; |
| 834 |
ofun[OBJ_SPHERE].funp = |
| 835 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
| 836 |
ofun[OBJ_FACE].funp = o_face; |
| 837 |
ofun[OBJ_CONE].funp = |
| 838 |
ofun[OBJ_CUP].funp = o_cone; |
| 839 |
ofun[OBJ_CYLINDER].funp = |
| 840 |
ofun[OBJ_TUBE].funp = o_cylinder; |
| 841 |
ofun[OBJ_RING].funp = o_ring; |
| 842 |
ofun[OBJ_INSTANCE].funp = addxform; |
| 843 |
ofun[MAT_GLOW].funp = m_glow; |
| 844 |
ofun[MAT_SPOT].funp = m_spot; |
| 845 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
| 846 |
ofun[MAT_INTERFACE].funp = m_interface; |
| 847 |
ofun[MAT_MIST].funp = m_mist; |
| 848 |
ofun[PAT_CTEXT].funp = |
| 849 |
ofun[PAT_BTEXT].funp = |
| 850 |
ofun[MIX_TEXT].funp = text; |
| 851 |
ofun[MOD_ALIAS].funp = alias; |
| 852 |
/* surface inverses */ |
| 853 |
tinvers[OBJ_FACE] = OBJ_FACE; |
| 854 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
| 855 |
tinvers[OBJ_CONE] = OBJ_CUP; |
| 856 |
tinvers[OBJ_CUP] = OBJ_CONE; |
| 857 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
| 858 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
| 859 |
tinvers[OBJ_RING] = OBJ_RING; |
| 860 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
| 861 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
| 862 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
| 863 |
} |
| 864 |
|
| 865 |
|
| 866 |
#ifdef OLDXFORM |
| 867 |
openmain(fname) |
| 868 |
char *fname; |
| 869 |
{ |
| 870 |
if (fname == NULL) { |
| 871 |
strcpy(mainfn, "standard input"); |
| 872 |
mainfp = stdin; |
| 873 |
return; |
| 874 |
} |
| 875 |
if (mainfp != NULL) { |
| 876 |
if (!strcmp(fname, mainfn)) { |
| 877 |
rewind(mainfp); |
| 878 |
return; |
| 879 |
} |
| 880 |
fclose(mainfp); |
| 881 |
} |
| 882 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
| 883 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
| 884 |
progname, fname); |
| 885 |
exit(1); |
| 886 |
} |
| 887 |
strcpy(mainfn, fname); |
| 888 |
} |
| 889 |
#else |
| 890 |
openmain(iname) /* open input, changing directory for file */ |
| 891 |
char *iname; |
| 892 |
{ |
| 893 |
static char origdir[PATH_MAX]; |
| 894 |
static char curfn[PATH_MAX]; |
| 895 |
static int diffdir; |
| 896 |
register char *fpath; |
| 897 |
|
| 898 |
if (iname == NULL) { /* standard input */ |
| 899 |
if (mainfp == NULL) { |
| 900 |
register int c; |
| 901 |
strcpy(mainfn, "standard input"); |
| 902 |
if (nrept <= 1) { |
| 903 |
mainfp = stdin; |
| 904 |
return; /* just read once */ |
| 905 |
} |
| 906 |
/* else copy */ |
| 907 |
if ((mainfp = tmpfile()) == NULL) { |
| 908 |
fprintf(stderr, |
| 909 |
"%s: cannot create temporary file\n", |
| 910 |
progname); |
| 911 |
exit(1); |
| 912 |
} |
| 913 |
while ((c = getc(stdin)) != EOF) |
| 914 |
putc(c, mainfp); |
| 915 |
} |
| 916 |
rewind(mainfp); /* rewind copy */ |
| 917 |
return; |
| 918 |
} |
| 919 |
if (mainfp == NULL) { /* first call, initialize */ |
| 920 |
getcwd(origdir, sizeof(origdir)); |
| 921 |
} else if (!strcmp(iname, curfn)) { /* just need to rewind? */ |
| 922 |
rewind(mainfp); |
| 923 |
return; |
| 924 |
} else { /* else close old stream */ |
| 925 |
fclose(mainfp); |
| 926 |
mainfp = NULL; |
| 927 |
if (diffdir) { /* return to our directory */ |
| 928 |
chdir(origdir); |
| 929 |
diffdir = 0; |
| 930 |
} |
| 931 |
} |
| 932 |
strcpy(curfn, iname); /* remember input name */ |
| 933 |
/* get full path for file */ |
| 934 |
if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) { |
| 935 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
| 936 |
progname, iname); |
| 937 |
exit(1); |
| 938 |
} |
| 939 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
| 940 |
fpath += 2; |
| 941 |
/* record path name */ |
| 942 |
strcpy(mainfn, fpath); |
| 943 |
if (expand) { /* change to local directory */ |
| 944 |
register char *cp = fpath + strlen(fpath); /* get dir. */ |
| 945 |
while (cp > fpath) { |
| 946 |
cp--; |
| 947 |
if (ISDIRSEP(*cp)) { |
| 948 |
if (cp == fpath) |
| 949 |
cp++; /* root special case */ |
| 950 |
break; |
| 951 |
} |
| 952 |
} |
| 953 |
*cp = '\0'; |
| 954 |
if (fpath[0]) { /* change to new directory? */ |
| 955 |
if (chdir(fpath) < 0) { |
| 956 |
fprintf(stderr, |
| 957 |
"%s: cannot change directory to \"%s\"\n", |
| 958 |
progname, fpath); |
| 959 |
exit(1); |
| 960 |
} |
| 961 |
diffdir++; |
| 962 |
} |
| 963 |
/* get final path component */ |
| 964 |
for (fpath = iname+strlen(iname); |
| 965 |
fpath > iname && !ISDIRSEP(fpath[-1]); fpath--) |
| 966 |
; |
| 967 |
} |
| 968 |
/* finally, open the file */ |
| 969 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
| 970 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
| 971 |
progname, mainfn); |
| 972 |
exit(1); |
| 973 |
} |
| 974 |
} |
| 975 |
#endif |
