1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: xform.c,v 2.48 2014/07/09 23:14:58 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 "rtio.h" |
17 |
#include "rtmath.h" |
18 |
#include "object.h" |
19 |
#include "otypes.h" |
20 |
|
21 |
#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
22 |
#undef getc |
23 |
#define getc getc_unlocked |
24 |
#endif |
25 |
|
26 |
int xac; /* global xform argument count */ |
27 |
char **xav; /* global xform argument pointer */ |
28 |
int xfa; /* start of xf arguments */ |
29 |
|
30 |
XF tot; /* total transformation */ |
31 |
int reverse; /* boolean true if scene mirrored */ |
32 |
|
33 |
int invert; /* boolean true to invert surfaces */ |
34 |
|
35 |
int expand; /* boolean true to expand commands */ |
36 |
|
37 |
char *newmod; /* new modifier for surfaces */ |
38 |
|
39 |
char *idprefix; /* prefix for object identifiers */ |
40 |
|
41 |
FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */ |
42 |
|
43 |
short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
44 |
|
45 |
int nrept = 1; /* number of array repetitions */ |
46 |
|
47 |
int stdinused = 0; /* stdin has been used by -f option? */ |
48 |
|
49 |
char mainfn[PATH_MAX]; /* main file name */ |
50 |
FILE *mainfp = NULL; /* main file pointer */ |
51 |
|
52 |
#define progname (xav[0]) |
53 |
|
54 |
static int doargf(int ac, char **av, int fi); |
55 |
static int doarray(int ac, char **av, int ai); |
56 |
static void xform(char *name, FILE *fin); |
57 |
static void xfcomm(char *fname, FILE *fin); |
58 |
static void xfobject(char *fname, FILE *fin); |
59 |
static int addxform(FILE *fin); |
60 |
static int alias(FILE *fin); |
61 |
void initotypes(void); /* XXX conflict with otypes.h */ |
62 |
static void openmain(char *iname); |
63 |
|
64 |
|
65 |
int |
66 |
main( /* get transform options and transform file */ |
67 |
int argc, |
68 |
char *argv[] |
69 |
) |
70 |
{ |
71 |
int mal_prefix = 0; |
72 |
int a; |
73 |
/* check for argument list file */ |
74 |
for (a = 1; a < argc; a++) |
75 |
if (!strcmp(argv[a], "-f")) |
76 |
return(doargf(argc, argv, a)); |
77 |
/* check for regular array */ |
78 |
for (a = 1; a < argc; a++) |
79 |
if (!strcmp(argv[a], "-a")) |
80 |
return(doarray(argc, argv, a)); |
81 |
|
82 |
initotypes(); /* initialize */ |
83 |
invert = 0; |
84 |
expand = 1; |
85 |
newmod = NULL; |
86 |
idprefix = NULL; |
87 |
|
88 |
for (a = 1; a < argc; a++) { |
89 |
if (argv[a][0] == '-') |
90 |
switch (argv[a][1]) { |
91 |
case 'm': |
92 |
if (argv[a][2] | (a+1 >= argc)) |
93 |
break; |
94 |
a++; |
95 |
if (newmod == NULL) |
96 |
newmod = argv[a]; |
97 |
continue; |
98 |
case 'n': |
99 |
if (argv[a][2] | (a+1 >= argc)) |
100 |
break; |
101 |
a++; |
102 |
if (idprefix == NULL) |
103 |
idprefix = argv[a]; |
104 |
else { |
105 |
char *newp; |
106 |
newp = (char *)malloc(strlen(idprefix)+ |
107 |
strlen(argv[a])+2); |
108 |
if (newp == NULL) |
109 |
exit(2); |
110 |
sprintf(newp, "%s.%s", |
111 |
idprefix, argv[a]); |
112 |
if (mal_prefix++) |
113 |
free(idprefix); |
114 |
idprefix = newp; |
115 |
} |
116 |
continue; |
117 |
case 'c': |
118 |
if (argv[a][2]) |
119 |
break; |
120 |
expand = 0; |
121 |
continue; |
122 |
case 'e': |
123 |
if (argv[a][2]) |
124 |
break; |
125 |
expand = 1; |
126 |
continue; |
127 |
case 'I': |
128 |
if (argv[a][2]) |
129 |
break; |
130 |
invert = !invert; |
131 |
continue; |
132 |
} |
133 |
break; |
134 |
} |
135 |
|
136 |
xav = argv; |
137 |
xfa = a; |
138 |
|
139 |
a += xf(&tot, argc-a, argv+a); |
140 |
|
141 |
if ( (reverse = (tot.sca < 0.0)) ) |
142 |
tot.sca = -tot.sca; |
143 |
if (invert) |
144 |
reverse = !reverse; |
145 |
|
146 |
if (a < argc && argv[a][0] == '-') { |
147 |
fprintf(stderr, "%s: command line error at '%s'\n", |
148 |
argv[0], argv[a]); |
149 |
exit(1); |
150 |
} |
151 |
|
152 |
xac = a; |
153 |
/* simple header */ |
154 |
putchar('#'); |
155 |
for (a = 0; a < xac; a++) |
156 |
printf(" %s", xav[a]); |
157 |
putchar('\n'); |
158 |
/* transform input */ |
159 |
if (xac == argc) { |
160 |
if (stdinused) { |
161 |
fprintf(stderr, "%s: cannot use stdin more than once\n", |
162 |
argv[0]); |
163 |
exit(1); |
164 |
} |
165 |
openmain(NULL); |
166 |
xform(mainfn, mainfp); |
167 |
} else |
168 |
for (a = xac; a < argc; a++) { |
169 |
openmain(argv[a]); |
170 |
xform(mainfn, mainfp); |
171 |
} |
172 |
|
173 |
if (mal_prefix) |
174 |
free(idprefix); |
175 |
return(0); |
176 |
} |
177 |
|
178 |
|
179 |
int |
180 |
doargf( /* take argument list from file */ |
181 |
int ac, |
182 |
char **av, |
183 |
int fi |
184 |
) |
185 |
{ |
186 |
int inquote; |
187 |
char *newav[256], **avp; |
188 |
char argbuf[2048]; |
189 |
char *newid, newidbuf[128]; |
190 |
char *oldid; |
191 |
char *cp; |
192 |
FILE *argfp; |
193 |
int n, i, k, newac, err; |
194 |
|
195 |
if (fi >= ac-1 || (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) { |
196 |
fprintf(stderr, "%s: missing file for -f option\n", av[0]); |
197 |
exit(1); |
198 |
} |
199 |
if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') { |
200 |
if (stdinused++) { |
201 |
fprintf(stderr, |
202 |
"%s: cannot use stdin more than once\n", |
203 |
av[0]); |
204 |
exit(1); |
205 |
} |
206 |
argfp = stdin; |
207 |
n = 100; /* we just don't know! */ |
208 |
} else { |
209 |
if ((argfp = fopen(av[fi+1], "r")) == NULL) { |
210 |
fprintf(stderr, |
211 |
"%s: cannot open argument file \"%s\"\n", |
212 |
av[0], av[fi+1]); |
213 |
exit(1); |
214 |
} |
215 |
n = 0; /* count number of lines in file */ |
216 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) |
217 |
n += argbuf[0] && argbuf[0] != '#'; |
218 |
if (!n) { |
219 |
fprintf(stderr, "%s: empty argument file \"%s\"\n", |
220 |
av[0], av[fi+1]); |
221 |
exit(1); |
222 |
} |
223 |
nrept *= n; |
224 |
rewind(argfp); |
225 |
} |
226 |
err = 0; k = 0; /* read each arg list and call main */ |
227 |
while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) { |
228 |
if (!argbuf[0] || argbuf[0] == '#') |
229 |
continue; |
230 |
avp = newav+2; |
231 |
avp[0] = av[0]; |
232 |
for (i = 1; i < fi; i++) |
233 |
avp[i] = av[i]; |
234 |
newac = i; |
235 |
cp = argbuf; /* parse new words */ |
236 |
if (*cp == '!') cp++; |
237 |
if (!strncmp(cp, "xform ", 6)) cp += 6; |
238 |
inquote = 0; |
239 |
for ( ; ; ) { |
240 |
skipspaces: |
241 |
while (isspace(*cp)) /* nullify spaces */ |
242 |
*cp++ = '\0'; |
243 |
if ((*cp == '"') | (*cp == '\'')) |
244 |
inquote = *cp++; |
245 |
if (!*cp) /* all done? */ |
246 |
break; |
247 |
if (cp[0] == '\\' && cp[1]) |
248 |
if (*++cp == '\n') |
249 |
goto skipspaces; |
250 |
avp[newac++] = cp; /* add argument to list */ |
251 |
if (inquote) { |
252 |
while (*++cp) |
253 |
if (*cp == inquote) { |
254 |
*cp++ = '\0'; |
255 |
break; |
256 |
} |
257 |
} else { |
258 |
while (*++cp && !isspace(*cp)) |
259 |
; |
260 |
} |
261 |
} |
262 |
for (i = fi+2; i < ac; i++) |
263 |
avp[newac++] = av[i]; |
264 |
avp[newac] = NULL; |
265 |
newid = newidbuf; |
266 |
oldid = NULL; |
267 |
for (i = 2; i < newac; i++) |
268 |
if (!strcmp(avp[i-1], "-n")) { |
269 |
oldid = avp[i]; |
270 |
if (strlen(oldid)+32 > sizeof(newidbuf)) { |
271 |
newid = (char *)malloc(strlen(oldid)+32); |
272 |
if (newid == NULL) |
273 |
exit(2); |
274 |
} |
275 |
avp[i] = newid; |
276 |
break; |
277 |
} |
278 |
if (oldid == NULL) { |
279 |
newav[0] = av[0]; |
280 |
newav[1] = "-n"; |
281 |
newav[2] = newid; |
282 |
avp = newav; |
283 |
newac += 2; |
284 |
} |
285 |
if (oldid == NULL) |
286 |
sprintf(newid, "i%d", k); |
287 |
else |
288 |
sprintf(newid, "%s.%d", oldid, k); |
289 |
err |= main(newac, avp); |
290 |
if (newid != newidbuf) |
291 |
free(newid); |
292 |
k++; |
293 |
} |
294 |
fclose(argfp); |
295 |
return(err); |
296 |
} |
297 |
|
298 |
|
299 |
int |
300 |
doarray( /* make array */ |
301 |
int ac, |
302 |
char **av, |
303 |
int ai |
304 |
) |
305 |
{ |
306 |
char *newav[256], **avp; |
307 |
char newid[128], repts[32]; |
308 |
char *oldid = NULL; |
309 |
int n, i, err; |
310 |
|
311 |
if (ai >= ac-1 || (n = atoi(av[ai+1])) <= 0) { |
312 |
fprintf(stderr, "%s: missing count for -a option\n", av[0]); |
313 |
exit(1); |
314 |
} |
315 |
nrept *= n; |
316 |
avp = newav+2; |
317 |
avp[0] = av[0]; |
318 |
for (i = 1; i < ac; i++) |
319 |
if (!strcmp(av[i-1], "-n")) { |
320 |
oldid = av[i]; |
321 |
avp[i] = newid; |
322 |
} else |
323 |
avp[i] = av[i]; |
324 |
avp[ai] = "-i"; |
325 |
avp[ai+1] = repts; |
326 |
avp[i] = NULL; |
327 |
if (oldid == NULL) { |
328 |
newav[0] = av[0]; |
329 |
newav[1] = "-n"; |
330 |
newav[2] = newid; |
331 |
avp = newav; |
332 |
ac += 2; |
333 |
} |
334 |
err = 0; |
335 |
for (i = 0; i < n; i++) { |
336 |
if (oldid == NULL) |
337 |
sprintf(newid, "a%d", i); |
338 |
else |
339 |
sprintf(newid, "%s.%d", oldid, i); |
340 |
sprintf(repts, "%d", i); |
341 |
err |= main(ac, avp); |
342 |
} |
343 |
return(err); |
344 |
} |
345 |
|
346 |
|
347 |
void |
348 |
xform( /* transform stream by tot.xfm */ |
349 |
char *name, |
350 |
FILE *fin |
351 |
) |
352 |
{ |
353 |
int nobjs = 0; |
354 |
int c; |
355 |
|
356 |
while ((c = getc(fin)) != EOF) { |
357 |
if (isspace(c)) /* blank */ |
358 |
continue; |
359 |
if (c == '#') { /* comment */ |
360 |
putchar(c); |
361 |
do { |
362 |
if ((c = getc(fin)) == EOF) |
363 |
return; |
364 |
putchar(c); |
365 |
} while (c != '\n'); |
366 |
} else if (c == '!') { /* command */ |
367 |
ungetc(c, fin); |
368 |
xfcomm(name, fin); |
369 |
nobjs++; |
370 |
} else { /* object */ |
371 |
ungetc(c, fin); |
372 |
xfobject(name, fin); |
373 |
nobjs++; |
374 |
} |
375 |
} |
376 |
if (nobjs == 0) |
377 |
fprintf(stderr, "%s: (%s): warning - empty file\n", |
378 |
progname, name); |
379 |
} |
380 |
|
381 |
|
382 |
void |
383 |
xfcomm( /* transform a command */ |
384 |
char *fname, |
385 |
FILE *fin |
386 |
) |
387 |
{ |
388 |
FILE *pin; |
389 |
char buf[2048]; |
390 |
int i; |
391 |
|
392 |
fgetline(buf, sizeof(buf), fin); |
393 |
if (expand) { |
394 |
if ((pin = popen(buf+1, "r")) == NULL) { |
395 |
fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
396 |
progname, fname, buf); |
397 |
exit(1); |
398 |
} |
399 |
xform(buf, pin); |
400 |
pclose(pin); |
401 |
} else { |
402 |
printf("\n%s", buf); |
403 |
if (xac > 1) { |
404 |
printf(" | %s -e", xav[0]); /* expand next time */ |
405 |
for (i = 1; i < xac; i++) |
406 |
if (i >= xfa || strcmp(xav[i], "-c")) |
407 |
printf(" %s", xav[i]); |
408 |
} |
409 |
putchar('\n'); |
410 |
} |
411 |
} |
412 |
|
413 |
|
414 |
void |
415 |
xfobject( /* transform an object */ |
416 |
char *fname, |
417 |
FILE *fin |
418 |
) |
419 |
{ |
420 |
char typ[16], nam[MAXSTR]; |
421 |
int fn; |
422 |
/* modifier and type */ |
423 |
strcpy(typ, "EOF"); |
424 |
fgetword(nam, sizeof(nam), fin); |
425 |
fgetword(typ, sizeof(typ), fin); |
426 |
if ((fn = otype(typ)) < 0) { |
427 |
fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
428 |
progname, fname, typ); |
429 |
exit(1); |
430 |
} |
431 |
putchar('\n'); |
432 |
if (ismodifier(fn)) { |
433 |
fputword(nam, stdout); |
434 |
printf(" %s ", typ); |
435 |
} else { |
436 |
fputword(newmod != NULL ? newmod : nam, stdout); |
437 |
printf(" %s ", invert ? ofun[tinvers[fn]].funame : typ); |
438 |
} |
439 |
/* object name */ |
440 |
fgetword(nam, sizeof(nam), fin); |
441 |
if (idprefix == NULL || ismodifier(fn)) |
442 |
fputword(nam, stdout); |
443 |
else { |
444 |
char nnam[MAXSTR]; |
445 |
sprintf(nnam, "%s.%s", idprefix, nam); |
446 |
fputword(nnam, stdout); |
447 |
} |
448 |
putchar('\n'); |
449 |
/* transform arguments */ |
450 |
if ((*ofun[fn].funp)(fin) < 0) { |
451 |
fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
452 |
progname, fname, ofun[fn].funame, nam); |
453 |
exit(1); |
454 |
} |
455 |
} |
456 |
|
457 |
|
458 |
int |
459 |
o_default( /* pass on arguments unchanged */ |
460 |
FILE *fin |
461 |
) |
462 |
{ |
463 |
int i; |
464 |
FUNARGS fa; |
465 |
|
466 |
if (readfargs(&fa, fin) != 1) |
467 |
return(-1); |
468 |
/* string arguments */ |
469 |
printf("%d", fa.nsargs); |
470 |
for (i = 0; i < fa.nsargs; i++) { |
471 |
fputc(' ', stdout); |
472 |
fputword(fa.sarg[i], stdout); |
473 |
} |
474 |
printf("\n"); |
475 |
#ifdef IARGS |
476 |
/* integer arguments */ |
477 |
printf("%d", fa.niargs); |
478 |
for (i = 0; i < fa.niargs; i++) |
479 |
printf(" %d", fa.iarg[i]); |
480 |
printf("\n"); |
481 |
#else |
482 |
printf("0\n"); |
483 |
#endif |
484 |
/* float arguments */ |
485 |
printf("%d", fa.nfargs); |
486 |
for (i = 0; i < fa.nfargs; i++) |
487 |
printf(" %18.12g", fa.farg[i]); |
488 |
printf("\n"); |
489 |
freefargs(&fa); |
490 |
return(0); |
491 |
} |
492 |
|
493 |
|
494 |
int |
495 |
addxform( /* add xf arguments to strings */ |
496 |
FILE *fin |
497 |
) |
498 |
{ |
499 |
int i; |
500 |
int resetarr = 0; |
501 |
FUNARGS fa; |
502 |
|
503 |
if (readfargs(&fa, fin) != 1) |
504 |
return(-1); |
505 |
/* string arguments */ |
506 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
507 |
resetarr = 2; |
508 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
509 |
for (i = 0; i < fa.nsargs; i++) { |
510 |
fputc(' ', stdout); |
511 |
fputword(fa.sarg[i], stdout); |
512 |
} |
513 |
if (resetarr) |
514 |
printf(" -i 1"); |
515 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
516 |
printf(" %s", xav[i]); |
517 |
printf("\n"); |
518 |
#ifdef IARGS |
519 |
/* integer arguments */ |
520 |
printf("%d", fa.niargs); |
521 |
for (i = 0; i < fa.niargs; i++) |
522 |
printf(" %d", fa.iarg[i]); |
523 |
printf("\n"); |
524 |
#else |
525 |
printf("0\n"); |
526 |
#endif |
527 |
/* float arguments */ |
528 |
printf("%d", fa.nfargs); |
529 |
for (i = 0; i < fa.nfargs; i++) |
530 |
printf(" %18.12g", fa.farg[i]); |
531 |
printf("\n"); |
532 |
freefargs(&fa); |
533 |
return(0); |
534 |
} |
535 |
|
536 |
|
537 |
int |
538 |
alias( /* transfer alias */ |
539 |
FILE *fin |
540 |
) |
541 |
{ |
542 |
char aliasnm[MAXSTR]; |
543 |
|
544 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
545 |
return(-1); |
546 |
printf("\t%s\n", aliasnm); |
547 |
return(0); |
548 |
} |
549 |
|
550 |
|
551 |
int |
552 |
m_glow( /* transform arguments for proximity light */ |
553 |
FILE *fin |
554 |
) |
555 |
{ |
556 |
FUNARGS fa; |
557 |
|
558 |
if (readfargs(&fa, fin) != 1) |
559 |
return(-1); |
560 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
561 |
return(-1); |
562 |
printf("0\n0\n4"); |
563 |
printf(" %18.12g %18.12g %18.12g", |
564 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
565 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
566 |
freefargs(&fa); |
567 |
return(0); |
568 |
} |
569 |
|
570 |
|
571 |
int |
572 |
m_spot( /* transform arguments for spotlight */ |
573 |
FILE *fin |
574 |
) |
575 |
{ |
576 |
FVECT v; |
577 |
FUNARGS fa; |
578 |
|
579 |
if (readfargs(&fa, fin) != 1) |
580 |
return(-1); |
581 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
582 |
return(-1); |
583 |
printf("0\n0\n7"); |
584 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
585 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
586 |
multv3(v, fa.farg+4, tot.xfm); |
587 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
588 |
freefargs(&fa); |
589 |
return(0); |
590 |
} |
591 |
|
592 |
|
593 |
int |
594 |
m_mist( /* transform arguments for mist */ |
595 |
FILE *fin |
596 |
) |
597 |
{ |
598 |
FUNARGS fa; |
599 |
int i; |
600 |
|
601 |
if (readfargs(&fa, fin) != 1) |
602 |
return(-1); |
603 |
if (fa.nfargs > 7) |
604 |
return(-1); |
605 |
printf("%d", fa.nsargs); |
606 |
if (idprefix == NULL) |
607 |
for (i = 0; i < fa.nsargs; i++) |
608 |
printf(" %s", fa.sarg[i]); |
609 |
else |
610 |
for (i = 0; i < fa.nsargs; i++) { |
611 |
char sname[256], *sp; |
612 |
char *cp1, *cp2 = sname; |
613 |
/* add idprefix */ |
614 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
615 |
for (cp1 = idprefix; *cp1; ) |
616 |
*cp2++ = *cp1++; |
617 |
*cp2++ = '.'; |
618 |
for (cp1 = sp; *cp1 && |
619 |
(*cp2++ = *cp1++) != '>'; ) |
620 |
; |
621 |
} |
622 |
*cp2 = '\0'; |
623 |
printf(" %s", sname); |
624 |
} |
625 |
printf("\n0\n%d", fa.nfargs); |
626 |
if (fa.nfargs > 2) |
627 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
628 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
629 |
for (i = 3; i < fa.nfargs; i++) |
630 |
printf(" %12.6g", fa.farg[i]); |
631 |
printf("\n"); |
632 |
freefargs(&fa); |
633 |
return(0); |
634 |
} |
635 |
|
636 |
|
637 |
int |
638 |
m_dielectric( /* transform arguments for dielectric */ |
639 |
FILE *fin |
640 |
) |
641 |
{ |
642 |
FUNARGS fa; |
643 |
|
644 |
if (readfargs(&fa, fin) != 1) |
645 |
return(-1); |
646 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
647 |
return(-1); |
648 |
printf("0\n0\n5"); |
649 |
printf(" %12.6g %12.6g %12.6g", |
650 |
pow(fa.farg[0], 1.0/tot.sca), |
651 |
pow(fa.farg[1], 1.0/tot.sca), |
652 |
pow(fa.farg[2], 1.0/tot.sca)); |
653 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
654 |
freefargs(&fa); |
655 |
return(0); |
656 |
} |
657 |
|
658 |
|
659 |
int |
660 |
m_interface( /* transform arguments for interface */ |
661 |
FILE *fin |
662 |
) |
663 |
{ |
664 |
FUNARGS fa; |
665 |
|
666 |
if (readfargs(&fa, fin) != 1) |
667 |
return(-1); |
668 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
669 |
return(-1); |
670 |
printf("0\n0\n8\n"); |
671 |
printf("%12.6g %12.6g %12.6g", |
672 |
pow(fa.farg[0], 1.0/tot.sca), |
673 |
pow(fa.farg[1], 1.0/tot.sca), |
674 |
pow(fa.farg[2], 1.0/tot.sca)); |
675 |
printf(" %12.6g\n", fa.farg[3]); |
676 |
printf("%12.6g %12.6g %12.6g", |
677 |
pow(fa.farg[4], 1.0/tot.sca), |
678 |
pow(fa.farg[5], 1.0/tot.sca), |
679 |
pow(fa.farg[6], 1.0/tot.sca)); |
680 |
printf(" %12.6g\n", fa.farg[7]); |
681 |
freefargs(&fa); |
682 |
return(0); |
683 |
} |
684 |
|
685 |
|
686 |
int |
687 |
text( /* transform text arguments */ |
688 |
FILE *fin |
689 |
) |
690 |
{ |
691 |
int i; |
692 |
FVECT v; |
693 |
FUNARGS fa; |
694 |
|
695 |
if (readfargs(&fa, fin) != 1) |
696 |
return(-1); |
697 |
if (fa.nfargs < 9) |
698 |
return(-1); |
699 |
/* string arguments */ |
700 |
printf("%d", fa.nsargs); |
701 |
for (i = 0; i < fa.nsargs; i++) { |
702 |
fputc(' ', stdout); |
703 |
fputword(fa.sarg[i], stdout); |
704 |
} |
705 |
printf("\n0\n%d\n", fa.nfargs); |
706 |
/* anchor point */ |
707 |
multp3(v, fa.farg, tot.xfm); |
708 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
709 |
/* right vector */ |
710 |
multv3(v, fa.farg+3, tot.xfm); |
711 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
712 |
/* down vector */ |
713 |
multv3(v, fa.farg+6, tot.xfm); |
714 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
715 |
/* remaining arguments */ |
716 |
for (i = 9; i < fa.nfargs; i++) { |
717 |
if (i%3 == 0) |
718 |
putchar('\n'); |
719 |
printf(" %18.12g", fa.farg[i]); |
720 |
} |
721 |
putchar('\n'); |
722 |
freefargs(&fa); |
723 |
return(0); |
724 |
} |
725 |
|
726 |
|
727 |
int |
728 |
o_source( /* transform source arguments */ |
729 |
FILE *fin |
730 |
) |
731 |
{ |
732 |
FVECT dv; |
733 |
FUNARGS fa; |
734 |
|
735 |
if (readfargs(&fa, fin) != 1) |
736 |
return(-1); |
737 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
738 |
return(-1); |
739 |
/* transform direction vector */ |
740 |
multv3(dv, fa.farg, tot.xfm); |
741 |
/* output */ |
742 |
printf("0\n0\n4"); |
743 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
744 |
dv[0], dv[1], dv[2], fa.farg[3]); |
745 |
freefargs(&fa); |
746 |
return(0); |
747 |
} |
748 |
|
749 |
|
750 |
int |
751 |
o_sphere( /* transform sphere arguments */ |
752 |
FILE *fin |
753 |
) |
754 |
{ |
755 |
FVECT cent; |
756 |
double rad; |
757 |
FUNARGS fa; |
758 |
|
759 |
if (readfargs(&fa, fin) != 1) |
760 |
return(-1); |
761 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
762 |
return(-1); |
763 |
|
764 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
765 |
|
766 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
767 |
|
768 |
printf("0\n0\n4"); |
769 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
770 |
cent[0], cent[1], cent[2], rad); |
771 |
freefargs(&fa); |
772 |
return(0); |
773 |
} |
774 |
|
775 |
|
776 |
int |
777 |
o_face( /* transform face arguments */ |
778 |
FILE *fin |
779 |
) |
780 |
{ |
781 |
FVECT p; |
782 |
int i; |
783 |
FUNARGS fa; |
784 |
|
785 |
if (readfargs(&fa, fin) != 1) |
786 |
return(-1); |
787 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
788 |
return(-1); |
789 |
|
790 |
printf("0\n0\n%d\n", fa.nfargs); |
791 |
|
792 |
for (i = 0; i < fa.nfargs; i += 3) { |
793 |
if (reverse) |
794 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
795 |
else |
796 |
multp3(p, fa.farg+i, tot.xfm); |
797 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
798 |
} |
799 |
freefargs(&fa); |
800 |
return(0); |
801 |
} |
802 |
|
803 |
|
804 |
int |
805 |
o_cone( /* transform cone and cup arguments */ |
806 |
FILE *fin |
807 |
) |
808 |
{ |
809 |
FVECT p0, p1; |
810 |
double r0, r1; |
811 |
FUNARGS fa; |
812 |
|
813 |
if (readfargs(&fa, fin) != 1) |
814 |
return(-1); |
815 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
816 |
return(-1); |
817 |
|
818 |
printf("0\n0\n8\n"); |
819 |
|
820 |
multp3(p0, fa.farg, tot.xfm); |
821 |
multp3(p1, fa.farg+3, tot.xfm); |
822 |
r0 = fa.farg[6] * tot.sca; |
823 |
r1 = fa.farg[7] * tot.sca; |
824 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
825 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
826 |
printf(" %18.12g %18.12g\n", r0, r1); |
827 |
|
828 |
freefargs(&fa); |
829 |
return(0); |
830 |
} |
831 |
|
832 |
|
833 |
int |
834 |
o_cylinder( /* transform cylinder and tube arguments */ |
835 |
FILE *fin |
836 |
) |
837 |
{ |
838 |
FVECT p0, p1; |
839 |
double rad; |
840 |
FUNARGS fa; |
841 |
|
842 |
if (readfargs(&fa, fin) != 1) |
843 |
return(-1); |
844 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
845 |
return(-1); |
846 |
|
847 |
printf("0\n0\n7\n"); |
848 |
|
849 |
multp3(p0, fa.farg, tot.xfm); |
850 |
multp3(p1, fa.farg+3, tot.xfm); |
851 |
rad = fa.farg[6] * tot.sca; |
852 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
853 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
854 |
printf(" %18.12g\n", rad); |
855 |
freefargs(&fa); |
856 |
return(0); |
857 |
} |
858 |
|
859 |
|
860 |
int |
861 |
o_ring( /* transform ring arguments */ |
862 |
FILE *fin |
863 |
) |
864 |
{ |
865 |
FVECT p0, pd; |
866 |
double r0, r1; |
867 |
FUNARGS fa; |
868 |
|
869 |
if (readfargs(&fa, fin) != 1) |
870 |
return(-1); |
871 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
872 |
return(-1); |
873 |
|
874 |
printf("0\n0\n8\n"); |
875 |
|
876 |
multp3(p0, fa.farg, tot.xfm); |
877 |
multv3(pd, fa.farg+3, tot.xfm); |
878 |
if (invert) { |
879 |
pd[0] = -pd[0]; |
880 |
pd[1] = -pd[1]; |
881 |
pd[2] = -pd[2]; |
882 |
} |
883 |
r0 = fa.farg[6] * tot.sca; |
884 |
r1 = fa.farg[7] * tot.sca; |
885 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
886 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
887 |
printf(" %18.12g %18.12g\n", r0, r1); |
888 |
freefargs(&fa); |
889 |
return(0); |
890 |
} |
891 |
|
892 |
|
893 |
void |
894 |
initotypes(void) /* initialize ofun[] array */ |
895 |
{ |
896 |
int i; |
897 |
|
898 |
if (ofun[OBJ_SOURCE].funp == o_source) |
899 |
return; /* done already */ |
900 |
/* functions get new transform */ |
901 |
for (i = 0; i < NUMOTYPE; i++) |
902 |
if (hasfunc(i)) |
903 |
ofun[i].funp = addxform; |
904 |
/* special cases */ |
905 |
ofun[OBJ_SOURCE].funp = o_source; |
906 |
ofun[OBJ_SPHERE].funp = |
907 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
908 |
ofun[OBJ_FACE].funp = o_face; |
909 |
ofun[OBJ_CONE].funp = |
910 |
ofun[OBJ_CUP].funp = o_cone; |
911 |
ofun[OBJ_CYLINDER].funp = |
912 |
ofun[OBJ_TUBE].funp = o_cylinder; |
913 |
ofun[OBJ_RING].funp = o_ring; |
914 |
ofun[OBJ_INSTANCE].funp = |
915 |
ofun[OBJ_MESH].funp = addxform; |
916 |
ofun[MAT_GLOW].funp = m_glow; |
917 |
ofun[MAT_SPOT].funp = m_spot; |
918 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
919 |
ofun[MAT_INTERFACE].funp = m_interface; |
920 |
ofun[MAT_MIST].funp = m_mist; |
921 |
ofun[PAT_CTEXT].funp = |
922 |
ofun[PAT_BTEXT].funp = |
923 |
ofun[MIX_TEXT].funp = text; |
924 |
ofun[MOD_ALIAS].funp = alias; |
925 |
/* surface inverses */ |
926 |
tinvers[OBJ_FACE] = OBJ_FACE; |
927 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
928 |
tinvers[OBJ_CONE] = OBJ_CUP; |
929 |
tinvers[OBJ_CUP] = OBJ_CONE; |
930 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
931 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
932 |
tinvers[OBJ_RING] = OBJ_RING; |
933 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
934 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
935 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
936 |
tinvers[OBJ_MESH] = OBJ_MESH; /* ditto */ |
937 |
} |
938 |
|
939 |
|
940 |
#ifdef OLDXFORM |
941 |
void |
942 |
openmain( |
943 |
char *fname |
944 |
) |
945 |
{ |
946 |
if (fname == NULL) { |
947 |
strcpy(mainfn, "standard input"); |
948 |
mainfp = stdin; |
949 |
return; |
950 |
} |
951 |
if (mainfp != NULL) { |
952 |
if (!strcmp(fname, mainfn)) { |
953 |
rewind(mainfp); |
954 |
return; |
955 |
} |
956 |
fclose(mainfp); |
957 |
} |
958 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
959 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
960 |
progname, fname); |
961 |
exit(1); |
962 |
} |
963 |
strcpy(mainfn, fname); |
964 |
} |
965 |
#else |
966 |
void |
967 |
openmain( /* open input, changing directory for file */ |
968 |
char *iname |
969 |
) |
970 |
{ |
971 |
static char origdir[PATH_MAX]; |
972 |
static char curfn[PATH_MAX]; |
973 |
static int diffdir; |
974 |
char *fpath; |
975 |
|
976 |
if (iname == NULL) { /* standard input */ |
977 |
if (mainfp == NULL) { |
978 |
int c; |
979 |
strcpy(mainfn, "standard input"); |
980 |
if (nrept <= 1) { |
981 |
mainfp = stdin; |
982 |
return; /* just read once */ |
983 |
} |
984 |
/* else copy */ |
985 |
if ((mainfp = tmpfile()) == NULL) { |
986 |
fprintf(stderr, |
987 |
"%s: cannot create temporary file\n", |
988 |
progname); |
989 |
exit(1); |
990 |
} |
991 |
while ((c = getc(stdin)) != EOF) |
992 |
putc(c, mainfp); |
993 |
} |
994 |
rewind(mainfp); /* rewind copy */ |
995 |
return; |
996 |
} |
997 |
if (mainfp == NULL) { /* first call, initialize */ |
998 |
getcwd(origdir, sizeof(origdir)); |
999 |
} else if (!strcmp(iname, curfn)) { /* just need to rewind? */ |
1000 |
rewind(mainfp); |
1001 |
return; |
1002 |
} else { /* else close old stream */ |
1003 |
fclose(mainfp); |
1004 |
mainfp = NULL; |
1005 |
if (diffdir) { /* return to our directory */ |
1006 |
chdir(origdir); |
1007 |
diffdir = 0; |
1008 |
} |
1009 |
} |
1010 |
strcpy(curfn, iname); /* remember input name */ |
1011 |
/* get full path for file */ |
1012 |
if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) { |
1013 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
1014 |
progname, iname); |
1015 |
exit(1); |
1016 |
} |
1017 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
1018 |
fpath += 2; |
1019 |
/* record path name */ |
1020 |
strcpy(mainfn, fpath); |
1021 |
if (expand) { /* change to local directory */ |
1022 |
char *cp = fpath + strlen(fpath); /* get dir. */ |
1023 |
while (cp > fpath) { |
1024 |
cp--; |
1025 |
if (ISDIRSEP(*cp)) { |
1026 |
if (cp == fpath) |
1027 |
cp++; /* root special case */ |
1028 |
break; |
1029 |
} |
1030 |
} |
1031 |
*cp = '\0'; |
1032 |
if (fpath[0]) { /* change to new directory? */ |
1033 |
if (chdir(fpath) < 0) { |
1034 |
fprintf(stderr, |
1035 |
"%s: cannot change directory to \"%s\"\n", |
1036 |
progname, fpath); |
1037 |
exit(1); |
1038 |
} |
1039 |
diffdir++; |
1040 |
} |
1041 |
/* get final path component */ |
1042 |
for (fpath = iname+strlen(iname); |
1043 |
fpath > iname && !ISDIRSEP(fpath[-1]); fpath--) |
1044 |
; |
1045 |
} |
1046 |
/* finally, open the file */ |
1047 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
1048 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
1049 |
progname, mainfn); |
1050 |
exit(1); |
1051 |
} |
1052 |
} |
1053 |
#endif |