1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: xform.c,v 2.37 2004/07/02 16:45:32 greg 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 |
|
14 |
#include "platform.h" |
15 |
#include "paths.h" |
16 |
#include "rtprocess.h" /* win_popen() */ |
17 |
#include "rtio.h" |
18 |
#include "rtmath.h" |
19 |
#include "object.h" |
20 |
#include "otypes.h" |
21 |
|
22 |
int xac; /* global xform argument count */ |
23 |
char **xav; /* global xform argument pointer */ |
24 |
int xfa; /* start of xf arguments */ |
25 |
|
26 |
XF tot; /* total transformation */ |
27 |
int reverse; /* boolean true if scene mirrored */ |
28 |
|
29 |
int invert; /* boolean true to invert surfaces */ |
30 |
|
31 |
int expand; /* boolean true to expand commands */ |
32 |
|
33 |
char *newmod; /* new modifier for surfaces */ |
34 |
|
35 |
char *idprefix; /* prefix for object identifiers */ |
36 |
|
37 |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */ |
38 |
|
39 |
short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
40 |
|
41 |
int nrept = 1; /* number of array repetitions */ |
42 |
|
43 |
int stdinused = 0; /* stdin has been used by -f option? */ |
44 |
|
45 |
char mainfn[PATH_MAX]; /* main file name */ |
46 |
FILE *mainfp = NULL; /* main file pointer */ |
47 |
|
48 |
#define progname (xav[0]) |
49 |
|
50 |
static int doargf(int ac, char **av, int fi); |
51 |
static int doarray(int ac, char **av, int ai); |
52 |
static void xform(char *name, FILE *fin); |
53 |
static void xfcomm(char *fname, FILE *fin); |
54 |
static void xfobject(char *fname, FILE *fin); |
55 |
static int addxform(FILE *fin); |
56 |
static int alias(FILE *fin); |
57 |
void initotypes(void); /* XXX conflict with otypes.h */ |
58 |
static void openmain(char *iname); |
59 |
|
60 |
|
61 |
int |
62 |
main( /* get transform options and transform file */ |
63 |
int argc, |
64 |
char *argv[] |
65 |
) |
66 |
{ |
67 |
int mal_prefix = 0; |
68 |
int a; |
69 |
/* check for argument list file */ |
70 |
for (a = 1; a < argc; a++) |
71 |
if (!strcmp(argv[a], "-f")) |
72 |
return(doargf(argc, argv, a)); |
73 |
/* check for regular array */ |
74 |
for (a = 1; a < argc; a++) |
75 |
if (!strcmp(argv[a], "-a")) |
76 |
return(doarray(argc, argv, a)); |
77 |
|
78 |
initotypes(); /* initialize */ |
79 |
invert = 0; |
80 |
expand = 1; |
81 |
newmod = NULL; |
82 |
idprefix = NULL; |
83 |
|
84 |
for (a = 1; a < argc; a++) { |
85 |
if (argv[a][0] == '-') |
86 |
switch (argv[a][1]) { |
87 |
case 'm': |
88 |
if (argv[a][2] | (a+1 >= argc)) |
89 |
break; |
90 |
a++; |
91 |
if (newmod == NULL) |
92 |
newmod = argv[a]; |
93 |
continue; |
94 |
case 'n': |
95 |
if (argv[a][2] | (a+1 >= argc)) |
96 |
break; |
97 |
a++; |
98 |
if (idprefix == NULL) |
99 |
idprefix = argv[a]; |
100 |
else { |
101 |
register char *newp; |
102 |
newp = (char *)malloc(strlen(idprefix)+ |
103 |
strlen(argv[a])+2); |
104 |
if (newp == NULL) |
105 |
exit(2); |
106 |
sprintf(newp, "%s.%s", |
107 |
idprefix, argv[a]); |
108 |
if (mal_prefix++) |
109 |
free((void *)idprefix); |
110 |
idprefix = newp; |
111 |
} |
112 |
continue; |
113 |
case 'c': |
114 |
if (argv[a][2]) |
115 |
break; |
116 |
expand = 0; |
117 |
continue; |
118 |
case 'e': |
119 |
if (argv[a][2]) |
120 |
break; |
121 |
expand = 1; |
122 |
continue; |
123 |
case 'I': |
124 |
if (argv[a][2]) |
125 |
break; |
126 |
invert = !invert; |
127 |
continue; |
128 |
} |
129 |
break; |
130 |
} |
131 |
|
132 |
xav = argv; |
133 |
xfa = a; |
134 |
|
135 |
a += xf(&tot, argc-a, argv+a); |
136 |
|
137 |
if ( (reverse = tot.sca < 0.0) ) |
138 |
tot.sca = -tot.sca; |
139 |
if (invert) |
140 |
reverse = !reverse; |
141 |
|
142 |
if (a < argc && argv[a][0] == '-') { |
143 |
fprintf(stderr, "%s: command line error at '%s'\n", |
144 |
argv[0], argv[a]); |
145 |
exit(1); |
146 |
} |
147 |
|
148 |
xac = a; |
149 |
/* simple header */ |
150 |
putchar('#'); |
151 |
for (a = 0; a < xac; a++) |
152 |
printf(" %s", xav[a]); |
153 |
putchar('\n'); |
154 |
/* transform input */ |
155 |
if (xac == argc) { |
156 |
if (stdinused) { |
157 |
fprintf(stderr, "%s: cannot use stdin more than once\n", |
158 |
argv[0]); |
159 |
exit(1); |
160 |
} |
161 |
openmain(NULL); |
162 |
xform(mainfn, mainfp); |
163 |
} else |
164 |
for (a = xac; a < argc; a++) { |
165 |
openmain(argv[a]); |
166 |
xform(mainfn, mainfp); |
167 |
} |
168 |
|
169 |
if (mal_prefix) |
170 |
free((void *)idprefix); |
171 |
return(0); |
172 |
} |
173 |
|
174 |
|
175 |
int |
176 |
doargf( /* take argument list from file */ |
177 |
int ac, |
178 |
char **av, |
179 |
int fi |
180 |
) |
181 |
{ |
182 |
int inquote; |
183 |
char *newav[256], **avp; |
184 |
char argbuf[2048]; |
185 |
char newid[128]; |
186 |
char *oldid; |
187 |
register char *cp; |
188 |
FILE *argfp; |
189 |
int n, i, k, newac, err; |
190 |
|
191 |
if (fi >= ac-1 || (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) { |
192 |
fprintf(stderr, "%s: missing file for -f option\n", av[0]); |
193 |
exit(1); |
194 |
} |
195 |
if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') { |
196 |
if (stdinused++) { |
197 |
fprintf(stderr, |
198 |
"%s: cannot use stdin more than once\n", |
199 |
av[0]); |
200 |
exit(1); |
201 |
} |
202 |
argfp = stdin; |
203 |
n = 100; /* we just don't know! */ |
204 |
} else { |
205 |
if ((argfp = fopen(av[fi+1], "r")) == NULL) { |
206 |
fprintf(stderr, |
207 |
"%s: cannot open argument file \"%s\"\n", |
208 |
av[0], av[fi+1]); |
209 |
exit(1); |
210 |
} |
211 |
n = 0; /* count number of lines in file */ |
212 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) |
213 |
n += argbuf[0] && argbuf[0] != '#'; |
214 |
if (!n) { |
215 |
fprintf(stderr, "%s: empty argument file \"%s\"\n", |
216 |
av[0], av[fi+1]); |
217 |
exit(1); |
218 |
} |
219 |
nrept *= n; |
220 |
rewind(argfp); |
221 |
} |
222 |
err = 0; k = 0; /* read each arg list and call main */ |
223 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) { |
224 |
if (!argbuf[0] || argbuf[0] == '#') |
225 |
continue; |
226 |
avp = newav+2; |
227 |
avp[0] = av[0]; |
228 |
for (i = 1; i < fi; i++) |
229 |
avp[i] = av[i]; |
230 |
newac = i; |
231 |
cp = argbuf; /* parse new words */ |
232 |
if (*cp == '!') cp++; |
233 |
if (!strncmp(cp, "xform ", 6)) cp += 6; |
234 |
inquote = 0; |
235 |
for ( ; ; ) { |
236 |
skipspaces: |
237 |
while (isspace(*cp)) /* nullify spaces */ |
238 |
*cp++ = '\0'; |
239 |
if ((*cp == '"') | (*cp == '\'')) |
240 |
inquote = *cp++; |
241 |
if (!*cp) /* all done? */ |
242 |
break; |
243 |
if (cp[0] == '\\' && cp[1]) |
244 |
if (*++cp == '\n') |
245 |
goto skipspaces; |
246 |
avp[newac++] = cp; /* add argument to list */ |
247 |
if (inquote) { |
248 |
while (*++cp) |
249 |
if (*cp == inquote) { |
250 |
*cp++ = '\0'; |
251 |
break; |
252 |
} |
253 |
} else { |
254 |
while (*++cp && !isspace(*cp)) |
255 |
; |
256 |
} |
257 |
} |
258 |
for (i = fi+2; i < ac; i++) |
259 |
avp[newac++] = av[i]; |
260 |
avp[newac] = NULL; |
261 |
oldid = NULL; |
262 |
for (i = 2; i < newac; i++) |
263 |
if (!strcmp(avp[i-1], "-n")) { |
264 |
oldid = avp[i]; |
265 |
avp[i] = newid; |
266 |
break; |
267 |
} |
268 |
if (oldid == NULL) { |
269 |
newav[0] = av[0]; |
270 |
newav[1] = "-n"; |
271 |
newav[2] = newid; |
272 |
avp = newav; |
273 |
newac += 2; |
274 |
} |
275 |
if (oldid == NULL) |
276 |
sprintf(newid, "i%d", k); |
277 |
else |
278 |
sprintf(newid, "%s.%d", oldid, k); |
279 |
err |= main(newac, avp); |
280 |
k++; |
281 |
} |
282 |
fclose(argfp); |
283 |
return(err); |
284 |
} |
285 |
|
286 |
|
287 |
int |
288 |
doarray( /* make array */ |
289 |
int ac, |
290 |
char **av, |
291 |
int ai |
292 |
) |
293 |
{ |
294 |
char *newav[256], **avp; |
295 |
char newid[128], repts[32]; |
296 |
char *oldid = NULL; |
297 |
int n, i, err; |
298 |
|
299 |
if (ai >= ac-1 || (n = atoi(av[ai+1])) <= 0) { |
300 |
fprintf(stderr, "%s: missing count for -a option\n", av[0]); |
301 |
exit(1); |
302 |
} |
303 |
nrept *= n; |
304 |
avp = newav+2; |
305 |
avp[0] = av[0]; |
306 |
for (i = 1; i < ac; i++) |
307 |
if (!strcmp(av[i-1], "-n")) { |
308 |
oldid = av[i]; |
309 |
avp[i] = newid; |
310 |
} else |
311 |
avp[i] = av[i]; |
312 |
avp[ai] = "-i"; |
313 |
avp[ai+1] = repts; |
314 |
avp[i] = NULL; |
315 |
if (oldid == NULL) { |
316 |
newav[0] = av[0]; |
317 |
newav[1] = "-n"; |
318 |
newav[2] = newid; |
319 |
avp = newav; |
320 |
ac += 2; |
321 |
} |
322 |
err = 0; |
323 |
for (i = 0; i < n; i++) { |
324 |
if (oldid == NULL) |
325 |
sprintf(newid, "a%d", i); |
326 |
else |
327 |
sprintf(newid, "%s.%d", oldid, i); |
328 |
sprintf(repts, "%d", i); |
329 |
err |= main(ac, avp); |
330 |
} |
331 |
return(err); |
332 |
} |
333 |
|
334 |
|
335 |
void |
336 |
xform( /* transform stream by tot.xfm */ |
337 |
char *name, |
338 |
register FILE *fin |
339 |
) |
340 |
{ |
341 |
int nobjs = 0; |
342 |
register int c; |
343 |
|
344 |
while ((c = getc(fin)) != EOF) { |
345 |
if (isspace(c)) /* blank */ |
346 |
continue; |
347 |
if (c == '#') { /* comment */ |
348 |
putchar(c); |
349 |
do { |
350 |
if ((c = getc(fin)) == EOF) |
351 |
return; |
352 |
putchar(c); |
353 |
} while (c != '\n'); |
354 |
} else if (c == '!') { /* command */ |
355 |
ungetc(c, fin); |
356 |
xfcomm(name, fin); |
357 |
nobjs++; |
358 |
} else { /* object */ |
359 |
ungetc(c, fin); |
360 |
xfobject(name, fin); |
361 |
nobjs++; |
362 |
} |
363 |
} |
364 |
if (nobjs == 0) |
365 |
fprintf(stderr, "%s: (%s): warning - empty file\n", |
366 |
progname, name); |
367 |
} |
368 |
|
369 |
|
370 |
void |
371 |
xfcomm( /* transform a command */ |
372 |
char *fname, |
373 |
FILE *fin |
374 |
) |
375 |
{ |
376 |
FILE *pin; |
377 |
char buf[2048]; |
378 |
int i; |
379 |
|
380 |
fgetline(buf, sizeof(buf), fin); |
381 |
if (expand) { |
382 |
if ((pin = popen(buf+1, "r")) == NULL) { |
383 |
fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
384 |
progname, fname, buf); |
385 |
exit(1); |
386 |
} |
387 |
xform(buf, pin); |
388 |
pclose(pin); |
389 |
} else { |
390 |
printf("\n%s", buf); |
391 |
if (xac > 1) { |
392 |
printf(" | %s -e", xav[0]); /* expand next time */ |
393 |
for (i = 1; i < xac; i++) |
394 |
if (i >= xfa || strcmp(xav[i], "-c")) |
395 |
printf(" %s", xav[i]); |
396 |
} |
397 |
putchar('\n'); |
398 |
} |
399 |
} |
400 |
|
401 |
|
402 |
void |
403 |
xfobject( /* transform an object */ |
404 |
char *fname, |
405 |
FILE *fin |
406 |
) |
407 |
{ |
408 |
char typ[16], nam[MAXSTR]; |
409 |
int fn; |
410 |
/* modifier and type */ |
411 |
strcpy(typ, "EOF"); |
412 |
fgetword(nam, sizeof(nam), fin); |
413 |
fgetword(typ, sizeof(typ), fin); |
414 |
if ((fn = otype(typ)) < 0) { |
415 |
fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
416 |
progname, fname, typ); |
417 |
exit(1); |
418 |
} |
419 |
if (ismodifier(fn)) |
420 |
printf("\n%s %s ", nam, typ); |
421 |
else |
422 |
printf("\n%s %s ", newmod != NULL ? newmod : nam, |
423 |
invert ? ofun[tinvers[fn]].funame : typ); |
424 |
/* object name */ |
425 |
fgetword(nam, sizeof(nam), fin); |
426 |
if (idprefix == NULL || ismodifier(fn)) |
427 |
printf("%s\n", nam); |
428 |
else |
429 |
printf("%s.%s\n", idprefix, nam); |
430 |
/* transform arguments */ |
431 |
if ((*ofun[fn].funp)(fin) < 0) { |
432 |
fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
433 |
progname, fname, ofun[fn].funame, nam); |
434 |
exit(1); |
435 |
} |
436 |
} |
437 |
|
438 |
|
439 |
int |
440 |
o_default( /* pass on arguments unchanged */ |
441 |
FILE *fin |
442 |
) |
443 |
{ |
444 |
register int i; |
445 |
FUNARGS fa; |
446 |
|
447 |
if (readfargs(&fa, fin) != 1) |
448 |
return(-1); |
449 |
/* string arguments */ |
450 |
printf("%d", fa.nsargs); |
451 |
for (i = 0; i < fa.nsargs; i++) { |
452 |
fputc(' ', stdout); |
453 |
fputword(fa.sarg[i], stdout); |
454 |
} |
455 |
printf("\n"); |
456 |
#ifdef IARGS |
457 |
/* integer arguments */ |
458 |
printf("%d", fa.niargs); |
459 |
for (i = 0; i < fa.niargs; i++) |
460 |
printf(" %d", fa.iarg[i]); |
461 |
printf("\n"); |
462 |
#else |
463 |
printf("0\n"); |
464 |
#endif |
465 |
/* float arguments */ |
466 |
printf("%d", fa.nfargs); |
467 |
for (i = 0; i < fa.nfargs; i++) |
468 |
printf(" %18.12g", fa.farg[i]); |
469 |
printf("\n"); |
470 |
freefargs(&fa); |
471 |
return(0); |
472 |
} |
473 |
|
474 |
|
475 |
int |
476 |
addxform( /* add xf arguments to strings */ |
477 |
FILE *fin |
478 |
) |
479 |
{ |
480 |
register int i; |
481 |
int resetarr = 0; |
482 |
FUNARGS fa; |
483 |
|
484 |
if (readfargs(&fa, fin) != 1) |
485 |
return(-1); |
486 |
/* string arguments */ |
487 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
488 |
resetarr = 2; |
489 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
490 |
for (i = 0; i < fa.nsargs; i++) { |
491 |
fputc(' ', stdout); |
492 |
fputword(fa.sarg[i], stdout); |
493 |
} |
494 |
if (resetarr) |
495 |
printf(" -i 1"); |
496 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
497 |
printf(" %s", xav[i]); |
498 |
printf("\n"); |
499 |
#ifdef IARGS |
500 |
/* integer arguments */ |
501 |
printf("%d", fa.niargs); |
502 |
for (i = 0; i < fa.niargs; i++) |
503 |
printf(" %d", fa.iarg[i]); |
504 |
printf("\n"); |
505 |
#else |
506 |
printf("0\n"); |
507 |
#endif |
508 |
/* float arguments */ |
509 |
printf("%d", fa.nfargs); |
510 |
for (i = 0; i < fa.nfargs; i++) |
511 |
printf(" %18.12g", fa.farg[i]); |
512 |
printf("\n"); |
513 |
freefargs(&fa); |
514 |
return(0); |
515 |
} |
516 |
|
517 |
|
518 |
int |
519 |
alias( /* transfer alias */ |
520 |
FILE *fin |
521 |
) |
522 |
{ |
523 |
char aliasnm[MAXSTR]; |
524 |
|
525 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
526 |
return(-1); |
527 |
printf("\t%s\n", aliasnm); |
528 |
return(0); |
529 |
} |
530 |
|
531 |
|
532 |
int |
533 |
m_glow( /* transform arguments for proximity light */ |
534 |
FILE *fin |
535 |
) |
536 |
{ |
537 |
FUNARGS fa; |
538 |
|
539 |
if (readfargs(&fa, fin) != 1) |
540 |
return(-1); |
541 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
542 |
return(-1); |
543 |
printf("0\n0\n4"); |
544 |
printf(" %18.12g %18.12g %18.12g", |
545 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
546 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
547 |
freefargs(&fa); |
548 |
return(0); |
549 |
} |
550 |
|
551 |
|
552 |
int |
553 |
m_spot( /* transform arguments for spotlight */ |
554 |
FILE *fin |
555 |
) |
556 |
{ |
557 |
FVECT v; |
558 |
FUNARGS fa; |
559 |
|
560 |
if (readfargs(&fa, fin) != 1) |
561 |
return(-1); |
562 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
563 |
return(-1); |
564 |
printf("0\n0\n7"); |
565 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
566 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
567 |
multv3(v, fa.farg+4, tot.xfm); |
568 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
569 |
freefargs(&fa); |
570 |
return(0); |
571 |
} |
572 |
|
573 |
|
574 |
int |
575 |
m_mist( /* transform arguments for mist */ |
576 |
FILE *fin |
577 |
) |
578 |
{ |
579 |
FUNARGS fa; |
580 |
int i; |
581 |
|
582 |
if (readfargs(&fa, fin) != 1) |
583 |
return(-1); |
584 |
if (fa.nfargs > 7) |
585 |
return(-1); |
586 |
printf("%d", fa.nsargs); |
587 |
if (idprefix == NULL) |
588 |
for (i = 0; i < fa.nsargs; i++) |
589 |
printf(" %s", fa.sarg[i]); |
590 |
else |
591 |
for (i = 0; i < fa.nsargs; i++) { |
592 |
char sname[256], *sp; |
593 |
register char *cp1, *cp2 = sname; |
594 |
/* add idprefix */ |
595 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
596 |
for (cp1 = idprefix; *cp1; ) |
597 |
*cp2++ = *cp1++; |
598 |
*cp2++ = '.'; |
599 |
for (cp1 = sp; *cp1 && |
600 |
(*cp2++ = *cp1++) != '>'; ) |
601 |
; |
602 |
} |
603 |
*cp2 = '\0'; |
604 |
printf(" %s", sname); |
605 |
} |
606 |
printf("\n0\n%d", fa.nfargs); |
607 |
if (fa.nfargs > 2) |
608 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
609 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
610 |
for (i = 3; i < fa.nfargs; i++) |
611 |
printf(" %12.6g", fa.farg[i]); |
612 |
printf("\n"); |
613 |
freefargs(&fa); |
614 |
return(0); |
615 |
} |
616 |
|
617 |
|
618 |
int |
619 |
m_dielectric( /* transform arguments for dielectric */ |
620 |
FILE *fin |
621 |
) |
622 |
{ |
623 |
FUNARGS fa; |
624 |
|
625 |
if (readfargs(&fa, fin) != 1) |
626 |
return(-1); |
627 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
628 |
return(-1); |
629 |
printf("0\n0\n5"); |
630 |
printf(" %12.6g %12.6g %12.6g", |
631 |
pow(fa.farg[0], 1.0/tot.sca), |
632 |
pow(fa.farg[1], 1.0/tot.sca), |
633 |
pow(fa.farg[2], 1.0/tot.sca)); |
634 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
635 |
freefargs(&fa); |
636 |
return(0); |
637 |
} |
638 |
|
639 |
|
640 |
int |
641 |
m_interface( /* transform arguments for interface */ |
642 |
FILE *fin |
643 |
) |
644 |
{ |
645 |
FUNARGS fa; |
646 |
|
647 |
if (readfargs(&fa, fin) != 1) |
648 |
return(-1); |
649 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
650 |
return(-1); |
651 |
printf("0\n0\n8\n"); |
652 |
printf("%12.6g %12.6g %12.6g", |
653 |
pow(fa.farg[0], 1.0/tot.sca), |
654 |
pow(fa.farg[1], 1.0/tot.sca), |
655 |
pow(fa.farg[2], 1.0/tot.sca)); |
656 |
printf(" %12.6g\n", fa.farg[3]); |
657 |
printf("%12.6g %12.6g %12.6g", |
658 |
pow(fa.farg[4], 1.0/tot.sca), |
659 |
pow(fa.farg[5], 1.0/tot.sca), |
660 |
pow(fa.farg[6], 1.0/tot.sca)); |
661 |
printf(" %12.6g\n", fa.farg[7]); |
662 |
freefargs(&fa); |
663 |
return(0); |
664 |
} |
665 |
|
666 |
|
667 |
int |
668 |
text( /* transform text arguments */ |
669 |
FILE *fin |
670 |
) |
671 |
{ |
672 |
int i; |
673 |
FVECT v; |
674 |
FUNARGS fa; |
675 |
|
676 |
if (readfargs(&fa, fin) != 1) |
677 |
return(-1); |
678 |
if (fa.nfargs < 9) |
679 |
return(-1); |
680 |
/* string arguments */ |
681 |
printf("%d", fa.nsargs); |
682 |
for (i = 0; i < fa.nsargs; i++) { |
683 |
fputc(' ', stdout); |
684 |
fputword(fa.sarg[i], stdout); |
685 |
} |
686 |
printf("\n0\n%d\n", fa.nfargs); |
687 |
/* anchor point */ |
688 |
multp3(v, fa.farg, tot.xfm); |
689 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
690 |
/* right vector */ |
691 |
multv3(v, fa.farg+3, tot.xfm); |
692 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
693 |
/* down vector */ |
694 |
multv3(v, fa.farg+6, tot.xfm); |
695 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
696 |
/* remaining arguments */ |
697 |
for (i = 9; i < fa.nfargs; i++) { |
698 |
if (i%3 == 0) |
699 |
putchar('\n'); |
700 |
printf(" %18.12g", fa.farg[i]); |
701 |
} |
702 |
putchar('\n'); |
703 |
freefargs(&fa); |
704 |
return(0); |
705 |
} |
706 |
|
707 |
|
708 |
int |
709 |
o_source( /* transform source arguments */ |
710 |
FILE *fin |
711 |
) |
712 |
{ |
713 |
FVECT dv; |
714 |
FUNARGS fa; |
715 |
|
716 |
if (readfargs(&fa, fin) != 1) |
717 |
return(-1); |
718 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
719 |
return(-1); |
720 |
/* transform direction vector */ |
721 |
multv3(dv, fa.farg, tot.xfm); |
722 |
/* output */ |
723 |
printf("0\n0\n4"); |
724 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
725 |
dv[0], dv[1], dv[2], fa.farg[3]); |
726 |
freefargs(&fa); |
727 |
return(0); |
728 |
} |
729 |
|
730 |
|
731 |
int |
732 |
o_sphere( /* transform sphere arguments */ |
733 |
FILE *fin |
734 |
) |
735 |
{ |
736 |
FVECT cent; |
737 |
double rad; |
738 |
FUNARGS fa; |
739 |
|
740 |
if (readfargs(&fa, fin) != 1) |
741 |
return(-1); |
742 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
743 |
return(-1); |
744 |
|
745 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
746 |
|
747 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
748 |
|
749 |
printf("0\n0\n4"); |
750 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
751 |
cent[0], cent[1], cent[2], rad); |
752 |
freefargs(&fa); |
753 |
return(0); |
754 |
} |
755 |
|
756 |
|
757 |
int |
758 |
o_face( /* transform face arguments */ |
759 |
FILE *fin |
760 |
) |
761 |
{ |
762 |
FVECT p; |
763 |
register int i; |
764 |
FUNARGS fa; |
765 |
|
766 |
if (readfargs(&fa, fin) != 1) |
767 |
return(-1); |
768 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
769 |
return(-1); |
770 |
|
771 |
printf("0\n0\n%d\n", fa.nfargs); |
772 |
|
773 |
for (i = 0; i < fa.nfargs; i += 3) { |
774 |
if (reverse) |
775 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
776 |
else |
777 |
multp3(p, fa.farg+i, tot.xfm); |
778 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
779 |
} |
780 |
freefargs(&fa); |
781 |
return(0); |
782 |
} |
783 |
|
784 |
|
785 |
int |
786 |
o_cone( /* transform cone and cup arguments */ |
787 |
FILE *fin |
788 |
) |
789 |
{ |
790 |
FVECT p0, p1; |
791 |
double r0, r1; |
792 |
FUNARGS fa; |
793 |
|
794 |
if (readfargs(&fa, fin) != 1) |
795 |
return(-1); |
796 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
797 |
return(-1); |
798 |
|
799 |
printf("0\n0\n8\n"); |
800 |
|
801 |
multp3(p0, fa.farg, tot.xfm); |
802 |
multp3(p1, fa.farg+3, tot.xfm); |
803 |
r0 = fa.farg[6] * tot.sca; |
804 |
r1 = fa.farg[7] * tot.sca; |
805 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
806 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
807 |
printf(" %18.12g %18.12g\n", r0, r1); |
808 |
|
809 |
freefargs(&fa); |
810 |
return(0); |
811 |
} |
812 |
|
813 |
|
814 |
int |
815 |
o_cylinder( /* transform cylinder and tube arguments */ |
816 |
FILE *fin |
817 |
) |
818 |
{ |
819 |
FVECT p0, p1; |
820 |
double rad; |
821 |
FUNARGS fa; |
822 |
|
823 |
if (readfargs(&fa, fin) != 1) |
824 |
return(-1); |
825 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
826 |
return(-1); |
827 |
|
828 |
printf("0\n0\n7\n"); |
829 |
|
830 |
multp3(p0, fa.farg, tot.xfm); |
831 |
multp3(p1, fa.farg+3, tot.xfm); |
832 |
rad = fa.farg[6] * tot.sca; |
833 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
834 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
835 |
printf(" %18.12g\n", rad); |
836 |
freefargs(&fa); |
837 |
return(0); |
838 |
} |
839 |
|
840 |
|
841 |
int |
842 |
o_ring( /* transform ring arguments */ |
843 |
FILE *fin |
844 |
) |
845 |
{ |
846 |
FVECT p0, pd; |
847 |
double r0, r1; |
848 |
FUNARGS fa; |
849 |
|
850 |
if (readfargs(&fa, fin) != 1) |
851 |
return(-1); |
852 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
853 |
return(-1); |
854 |
|
855 |
printf("0\n0\n8\n"); |
856 |
|
857 |
multp3(p0, fa.farg, tot.xfm); |
858 |
multv3(pd, fa.farg+3, tot.xfm); |
859 |
if (invert) { |
860 |
pd[0] = -pd[0]; |
861 |
pd[1] = -pd[1]; |
862 |
pd[2] = -pd[2]; |
863 |
} |
864 |
r0 = fa.farg[6] * tot.sca; |
865 |
r1 = fa.farg[7] * tot.sca; |
866 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
867 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
868 |
printf(" %18.12g %18.12g\n", r0, r1); |
869 |
freefargs(&fa); |
870 |
return(0); |
871 |
} |
872 |
|
873 |
|
874 |
void |
875 |
initotypes(void) /* initialize ofun[] array */ |
876 |
{ |
877 |
register int i; |
878 |
|
879 |
if (ofun[OBJ_SOURCE].funp == o_source) |
880 |
return; /* done already */ |
881 |
/* functions get new transform */ |
882 |
for (i = 0; i < NUMOTYPE; i++) |
883 |
if (hasfunc(i)) |
884 |
ofun[i].funp = addxform; |
885 |
/* special cases */ |
886 |
ofun[OBJ_SOURCE].funp = o_source; |
887 |
ofun[OBJ_SPHERE].funp = |
888 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
889 |
ofun[OBJ_FACE].funp = o_face; |
890 |
ofun[OBJ_CONE].funp = |
891 |
ofun[OBJ_CUP].funp = o_cone; |
892 |
ofun[OBJ_CYLINDER].funp = |
893 |
ofun[OBJ_TUBE].funp = o_cylinder; |
894 |
ofun[OBJ_RING].funp = o_ring; |
895 |
ofun[OBJ_INSTANCE].funp = |
896 |
ofun[OBJ_MESH].funp = addxform; |
897 |
ofun[MAT_GLOW].funp = m_glow; |
898 |
ofun[MAT_SPOT].funp = m_spot; |
899 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
900 |
ofun[MAT_INTERFACE].funp = m_interface; |
901 |
ofun[MAT_MIST].funp = m_mist; |
902 |
ofun[PAT_CTEXT].funp = |
903 |
ofun[PAT_BTEXT].funp = |
904 |
ofun[MIX_TEXT].funp = text; |
905 |
ofun[MOD_ALIAS].funp = alias; |
906 |
/* surface inverses */ |
907 |
tinvers[OBJ_FACE] = OBJ_FACE; |
908 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
909 |
tinvers[OBJ_CONE] = OBJ_CUP; |
910 |
tinvers[OBJ_CUP] = OBJ_CONE; |
911 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
912 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
913 |
tinvers[OBJ_RING] = OBJ_RING; |
914 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
915 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
916 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
917 |
} |
918 |
|
919 |
|
920 |
#ifdef OLDXFORM |
921 |
void |
922 |
openmain( |
923 |
char *fname |
924 |
) |
925 |
{ |
926 |
if (fname == NULL) { |
927 |
strcpy(mainfn, "standard input"); |
928 |
mainfp = stdin; |
929 |
return; |
930 |
} |
931 |
if (mainfp != NULL) { |
932 |
if (!strcmp(fname, mainfn)) { |
933 |
rewind(mainfp); |
934 |
return; |
935 |
} |
936 |
fclose(mainfp); |
937 |
} |
938 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
939 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
940 |
progname, fname); |
941 |
exit(1); |
942 |
} |
943 |
strcpy(mainfn, fname); |
944 |
} |
945 |
#else |
946 |
void |
947 |
openmain( /* open input, changing directory for file */ |
948 |
char *iname |
949 |
) |
950 |
{ |
951 |
static char origdir[PATH_MAX]; |
952 |
static char curfn[PATH_MAX]; |
953 |
static int diffdir; |
954 |
register char *fpath; |
955 |
|
956 |
if (iname == NULL) { /* standard input */ |
957 |
if (mainfp == NULL) { |
958 |
register int c; |
959 |
strcpy(mainfn, "standard input"); |
960 |
if (nrept <= 1) { |
961 |
mainfp = stdin; |
962 |
return; /* just read once */ |
963 |
} |
964 |
/* else copy */ |
965 |
if ((mainfp = tmpfile()) == NULL) { |
966 |
fprintf(stderr, |
967 |
"%s: cannot create temporary file\n", |
968 |
progname); |
969 |
exit(1); |
970 |
} |
971 |
while ((c = getc(stdin)) != EOF) |
972 |
putc(c, mainfp); |
973 |
} |
974 |
rewind(mainfp); /* rewind copy */ |
975 |
return; |
976 |
} |
977 |
if (mainfp == NULL) { /* first call, initialize */ |
978 |
getcwd(origdir, sizeof(origdir)); |
979 |
} else if (!strcmp(iname, curfn)) { /* just need to rewind? */ |
980 |
rewind(mainfp); |
981 |
return; |
982 |
} else { /* else close old stream */ |
983 |
fclose(mainfp); |
984 |
mainfp = NULL; |
985 |
if (diffdir) { /* return to our directory */ |
986 |
chdir(origdir); |
987 |
diffdir = 0; |
988 |
} |
989 |
} |
990 |
strcpy(curfn, iname); /* remember input name */ |
991 |
/* get full path for file */ |
992 |
if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) { |
993 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
994 |
progname, iname); |
995 |
exit(1); |
996 |
} |
997 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
998 |
fpath += 2; |
999 |
/* record path name */ |
1000 |
strcpy(mainfn, fpath); |
1001 |
if (expand) { /* change to local directory */ |
1002 |
register char *cp = fpath + strlen(fpath); /* get dir. */ |
1003 |
while (cp > fpath) { |
1004 |
cp--; |
1005 |
if (ISDIRSEP(*cp)) { |
1006 |
if (cp == fpath) |
1007 |
cp++; /* root special case */ |
1008 |
break; |
1009 |
} |
1010 |
} |
1011 |
*cp = '\0'; |
1012 |
if (fpath[0]) { /* change to new directory? */ |
1013 |
if (chdir(fpath) < 0) { |
1014 |
fprintf(stderr, |
1015 |
"%s: cannot change directory to \"%s\"\n", |
1016 |
progname, fpath); |
1017 |
exit(1); |
1018 |
} |
1019 |
diffdir++; |
1020 |
} |
1021 |
/* get final path component */ |
1022 |
for (fpath = iname+strlen(iname); |
1023 |
fpath > iname && !ISDIRSEP(fpath[-1]); fpath--) |
1024 |
; |
1025 |
} |
1026 |
/* finally, open the file */ |
1027 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
1028 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
1029 |
progname, mainfn); |
1030 |
exit(1); |
1031 |
} |
1032 |
} |
1033 |
#endif |