[ViewVC] Diff of: radiance/ray/src/gen/xform.c

Comparing ray/src/gen/xform.c (file contents):
Revision 1.5 by greg, Wed Jun 7 10:09:07 1989 UTC vs.
Revision 2.28 by schorsch, Mon Jun 30 14:59:11 2003 UTC

#	Line 1 \| Line 1
1	–	/* Copyright (c) 1986 Regents of the University of California */
2	–
1		#ifndef lint
2	<	static char SCCSid[] = "$SunId$ LBL";
2	>	static const char RCSid[] = "$Id$";
3		#endif
6	–
4		/*
5		* xform.c - program to transform object files.
6		* Transformations must preserve aspect ratio.
#	Line 12 \| Line 9 \| static char SCCSid[] = "$SunId$ LBL";
9		* 11/6/86 Finally added error checking!
10		*/
11
15	–	#include <stdio.h>
16	–
12		#include <ctype.h>
13	+	#include <unistd.h>
14
15	+	#include "standard.h"
16	+	#include "platform.h"
17	+	#include "paths.h"
18	+	#include "object.h"
19	+	#include "otypes.h"
20
20	–	typedef struct {
21	–	char funame; / function name */
22	–	int (funp)(); / pointer to function */
23	–	} FUN;
24	–
21		int xac; /* global xform argument count */
22		char *xav; / global xform argument pointer */
23		int xfa; /* start of xf arguments */
24
25	<	double totxform[4][4]; /* total transformation matrix */
26	<	double totscale; /* total scale factor */
31	<	int reverse; /* boolean true if scene inverted */
25	>	XF tot; /* total transformation */
26	>	int reverse; /* boolean true if scene mirrored */
27
28	<	int expand = 0; /* boolean true to expand commands */
28	>	int invert; /* boolean true to invert surfaces */
29
30	<	char idprefix = NULL; / prefix for object identifiers */
30	>	int expand; /* boolean true to expand commands */
31
32	<	extern int o_source();
38	<	extern int o_sphere();
39	<	extern int o_face();
40	<	extern int o_cone();
41	<	extern int o_cylinder();
42	<	extern int o_ring();
43	<	extern int m_glow();
44	<	extern int m_spot();
45	<	extern int m_dielectric();
46	<	extern int m_interface();
47	<	extern int text();
48	<	extern int alias();
49	<	extern int passargs();
50	<	extern int addxform();
32	>	char newmod; / new modifier for surfaces */
33
34	<	FUN ofun[] = {
53	<	{ "source", o_source },
54	<	{ "sphere", o_sphere },
55	<	{ "bubble", o_sphere },
56	<	{ "polygon", o_face },
57	<	{ "cone", o_cone },
58	<	{ "cup", o_cone },
59	<	{ "cylinder", o_cylinder },
60	<	{ "tube", o_cylinder },
61	<	{ "ring", o_ring },
62	<	{ "instance", addxform },
63	<	{ "alias", alias },
64	<	{ "antimatter", passargs },
65	<	{ "glow", m_glow },
66	<	{ "spotlight", m_spot },
67	<	{ "dielectric", m_dielectric },
68	<	{ "interface", m_interface },
69	<	{ "colortext", text },
70	<	{ "brighttext", text },
71	<	{ "texfunc", addxform },
72	<	{ "texdata", addxform },
73	<	{ "colorfunc", addxform },
74	<	{ "brightfunc", addxform },
75	<	{ "colorpict", addxform },
76	<	{ "colordata", addxform },
77	<	{ "brightdata", addxform },
78	<	{ "mixfunc", addxform },
79	<	{ "mixdata", addxform },
80	<	{ "mixtext", text },
81	<	{ "light", passargs },
82	<	{ "illum", passargs },
83	<	{ "plastic", passargs },
84	<	{ "metal", passargs },
85	<	{ "trans", passargs },
86	<	{ "glass", passargs },
87	<	{ 0 } /* terminator */
88	<	};
34	>	char idprefix; / prefix for object identifiers */
35
36	<	#define issurface(t) ((t)<=9)
36	>	FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */
37
38	<	typedef struct {
93	<	short nsargs; /* # of string arguments */
94	<	char *sarg; / string arguments */
95	<	short niargs; /* # of integer arguments */
96	<	int iarg; / integer arguments */
97	<	short nfargs; /* # of float arguments */
98	<	double farg; / float arguments */
99	<	} FUNARGS;
38	>	short tinvers[NUMOTYPE]; /* inverse types for surfaces */
39
40	<	#define MAXSTR 512 /* maximum string length */
40	>	int nrept = 1; /* number of array repetitions */
41
42	<	FUNARGS *getfargs();
104	<	char *malloc();
42	>	int stdinused = 0; /* stdin has been used by -f option? */
43
44	<	#define progname (xav[0])
44	>	char mainfn[PATH_MAX]; /* main file name */
45	>	FILE mainfp = NULL; / main file pointer */
46
47	+	#define progname (xav[0])
48
49	+
50		main(argc, argv) /* get transform options and transform file */
51		int argc;
52		char *argv[];
53		{
54	<	FILE *fopen();
55	<	FILE *fp;
54	>	int mal_prefix = 0;
55	>	char *fname;
56		int a;
57	+	/* check for argument list file */
58	+	for (a = 1; a < argc; a++)
59	+	if (!strcmp(argv[a], "-f"))
60	+	return(doargf(argc, argv, a));
61	+	/* check for regular array */
62	+	for (a = 1; a < argc; a++)
63	+	if (!strcmp(argv[a], "-a"))
64	+	return(doarray(argc, argv, a));
65
66	<	xav = argv;
66	>	initotypes(); /* initialize */
67	>	invert = 0;
68	>	expand = 1;
69	>	newmod = NULL;
70	>	idprefix = NULL;
71
72		for (a = 1; a < argc; a++) {
73		if (argv[a][0] == '-')
74		switch (argv[a][1]) {
75	+	case 'm':
76	+	if (argv[a][2] \| a+1 >= argc)
77	+	break;
78	+	a++;
79	+	if (newmod == NULL)
80	+	newmod = argv[a];
81	+	continue;
82		case 'n':
83	<	idprefix = argv[++a];
83	>	if (argv[a][2] \| a+1 >= argc)
84	>	break;
85	>	a++;
86	>	if (idprefix == NULL)
87	>	idprefix = argv[a];
88	>	else {
89	>	register char *newp;
90	>	newp = (char *)malloc(strlen(idprefix)+
91	>	strlen(argv[a])+2);
92	>	if (newp == NULL)
93	>	exit(2);
94	>	sprintf(newp, "%s.%s",
95	>	idprefix, argv[a]);
96	>	if (mal_prefix++)
97	>	free((void *)idprefix);
98	>	idprefix = newp;
99	>	}
100		continue;
101	+	case 'c':
102	+	if (argv[a][2])
103	+	break;
104	+	expand = 0;
105	+	continue;
106		case 'e':
107	+	if (argv[a][2])
108	+	break;
109		expand = 1;
110		continue;
111	+	case 'I':
112	+	if (argv[a][2])
113	+	break;
114	+	invert = !invert;
115	+	continue;
116		}
117		break;
118		}
119
120	+	xav = argv;
121		xfa = a;
122
123	<	totscale = 1.0;
135	<	setident4(totxform);
123	>	a += xf(&tot, argc-a, argv+a);
124
125	<	a += xf(totxform, &totscale, argc-a, argv+a);
125	>	if (reverse = tot.sca < 0.0)
126	>	tot.sca = -tot.sca;
127	>	if (invert)
128	>	reverse = !reverse;
129
130	<	if (reverse = totscale < 0.0)
131	<	totscale = -totscale;
130	>	if (a < argc && argv[a][0] == '-') {
131	>	fprintf(stderr, "%s: command line error at '%s'\n",
132	>	argv[0], argv[a]);
133	>	exit(1);
134	>	}
135
136		xac = a;
137	<
138	<	putchar('#'); /* simple header */
137	>	/* simple header */
138	>	putchar('#');
139		for (a = 0; a < xac; a++)
140		printf(" %s", xav[a]);
141		putchar('\n');
142	+	/* transform input */
143	+	if (xac == argc) {
144	+	if (stdinused) {
145	+	fprintf(stderr, "%s: cannot use stdin more than once\n",
146	+	argv[0]);
147	+	exit(1);
148	+	}
149	+	openmain(NULL);
150	+	xform(mainfn, mainfp);
151	+	} else
152	+	for (a = xac; a < argc; a++) {
153	+	openmain(argv[a]);
154	+	xform(mainfn, mainfp);
155	+	}
156
157	<	if (a == argc)
158	<	xform("standard input", stdin);
159	<	else
160	<	for ( ; a < argc; a++) {
161	<	if ((fp = fopen(argv[a], "r")) == NULL) {
162	<	fprintf(stderr, "%s: cannot open \"%s\"\n",
163	<	progname, argv[a]);
164	<	exit(1);
157	>	if (mal_prefix)
158	>	free((void *)idprefix);
159	>	return(0);
160	>	}
161	>
162	>
163	>	doargf(ac, av, fi) /* take argument list from file */
164	>	char **av;
165	>	int ac, fi;
166	>	{
167	>	int inquote;
168	>	char newav[256], *avp;
169	>	char argbuf[1024];
170	>	char newid[128];
171	>	char *oldid;
172	>	register char *cp;
173	>	FILE *argfp;
174	>	int n, i, k, newac, err;
175	>
176	>	if (fi >= ac-1 \|\| (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) {
177	>	fprintf(stderr, "%s: missing file for -f option\n", av[0]);
178	>	exit(1);
179	>	}
180	>	if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') {
181	>	if (stdinused++) {
182	>	fprintf(stderr,
183	>	"%s: cannot use stdin more than once\n",
184	>	av[0]);
185	>	exit(1);
186	>	}
187	>	argfp = stdin;
188	>	n = 100; /* we just don't know! */
189	>	} else {
190	>	if ((argfp = fopen(av[fi+1], "r")) == NULL) {
191	>	fprintf(stderr,
192	>	"%s: cannot open argument file \"%s\"\n",
193	>	av[0], av[fi+1]);
194	>	exit(1);
195	>	}
196	>	n = 0; /* count number of lines in file */
197	>	while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL)
198	>	n += argbuf[0] && argbuf[0] != '#';
199	>	if (!n) {
200	>	fprintf(stderr, "%s: empty argument file \"%s\"\n",
201	>	av[0], av[fi+1]);
202	>	exit(1);
203	>	}
204	>	nrept *= n;
205	>	rewind(argfp);
206	>	}
207	>	err = 0; k = 0; /* read each arg list and call main */
208	>	while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) {
209	>	if (!argbuf[0] \|\| argbuf[0] == '#')
210	>	continue;
211	>	avp = newav+2;
212	>	avp[0] = av[0];
213	>	for (i = 1; i < fi; i++)
214	>	avp[i] = av[i];
215	>	newac = i;
216	>	cp = argbuf; /* parse new words */
217	>	if (*cp == '!') cp++;
218	>	if (!strncmp(cp, "xform ", 6)) cp += 6;
219	>	inquote = 0;
220	>	for ( ; ; ) {
221	>	skipspaces:
222	>	while (isspace(cp)) / nullify spaces */
223	>	*cp++ = '\0';
224	>	if ((cp == '"' \| cp == '\''))
225	>	inquote = *cp++;
226	>	if (!cp) / all done? */
227	>	break;
228	>	if (cp[0] == '\\' && cp[1])
229	>	if (*++cp == '\n')
230	>	goto skipspaces;
231	>	avp[newac++] = cp; /* add argument to list */
232	>	if (inquote) {
233	>	while (*++cp)
234	>	if (*cp == inquote) {
235	>	*cp++ = '\0';
236	>	break;
237	>	}
238	>	} else {
239	>	while (++cp && !isspace(cp))
240	>	;
241		}
158	–	xform(argv[a], fp);
159	–	fclose(fp);
242		}
243	+	for (i = fi+2; i < ac; i++)
244	+	avp[newac++] = av[i];
245	+	avp[newac] = NULL;
246	+	oldid = NULL;
247	+	for (i = 2; i < newac; i++)
248	+	if (!strcmp(avp[i-1], "-n")) {
249	+	oldid = avp[i];
250	+	avp[i] = newid;
251	+	break;
252	+	}
253	+	if (oldid == NULL) {
254	+	newav[0] = av[0];
255	+	newav[1] = "-n";
256	+	newav[2] = newid;
257	+	avp = newav;
258	+	newac += 2;
259	+	}
260	+	if (oldid == NULL)
261	+	sprintf(newid, "i%d", k);
262	+	else
263	+	sprintf(newid, "%s.%d", oldid, k);
264	+	err \|= main(newac, avp);
265	+	k++;
266	+	}
267	+	fclose(argfp);
268	+	return(err);
269	+	}
270
271	<	exit(0);
271	>
272	>	doarray(ac, av, ai) /* make array */
273	>	char **av;
274	>	int ac, ai;
275	>	{
276	>	char newav[256], *avp;
277	>	char newid[128], repts[32];
278	>	char *oldid = NULL;
279	>	int n, i, err;
280	>
281	>	if (ai >= ac-1 \|\| (n = atoi(av[ai+1])) <= 0) {
282	>	fprintf(stderr, "%s: missing count for -a option\n", av[0]);
283	>	exit(1);
284	>	}
285	>	nrept *= n;
286	>	avp = newav+2;
287	>	avp[0] = av[0];
288	>	for (i = 1; i < ac; i++)
289	>	if (!strcmp(av[i-1], "-n")) {
290	>	oldid = av[i];
291	>	avp[i] = newid;
292	>	} else
293	>	avp[i] = av[i];
294	>	avp[ai] = "-i";
295	>	avp[ai+1] = repts;
296	>	avp[i] = NULL;
297	>	if (oldid == NULL) {
298	>	newav[0] = av[0];
299	>	newav[1] = "-n";
300	>	newav[2] = newid;
301	>	avp = newav;
302	>	ac += 2;
303	>	}
304	>	err = 0;
305	>	for (i = 0; i < n; i++) {
306	>	if (oldid == NULL)
307	>	sprintf(newid, "a%d", i);
308	>	else
309	>	sprintf(newid, "%s.%d", oldid, i);
310	>	sprintf(repts, "%d", i);
311	>	err \|= main(ac, avp);
312	>	}
313	>	return(err);
314		}
315
316
317	<	xform(name, fin) /* transform stream by totxform */
317	>	xform(name, fin) /* transform stream by tot.xfm */
318		char *name;
319		register FILE *fin;
320		{
321	+	int nobjs = 0;
322		register int c;
323
324		while ((c = getc(fin)) != EOF) {
#	Line 181 \| Line 333 \| *register FILE fin;**
333		} while (c != '\n');
334		} else if (c == '!') { /* command */
335		ungetc(c, fin);
336	<	if (expand)
337	<	xfcomm(name, fin);
186	<	else {
187	<	putchar('\n');
188	<	while ((c = getc(fin)) != EOF && c != '\n')
189	<	putchar(c);
190	<	printf(" \|");
191	<	for (c = 0; c < xac; c++)
192	<	printf(" %s", xav[c]);
193	<	putchar('\n');
194	<	}
336	>	xfcomm(name, fin);
337	>	nobjs++;
338		} else { /* object */
339		ungetc(c, fin);
340		xfobject(name, fin);
341	+	nobjs++;
342		}
343		}
344	+	if (nobjs == 0)
345	+	fprintf(stderr, "%s: (%s): warning - empty file\n",
346	+	progname, name);
347		}
348
349
350	<	xfcomm(fname, fin) /* expand a command */
350	>	xfcomm(fname, fin) /* transform a command */
351	>	char *fname;
352		FILE *fin;
353		{
206	–	FILE *popen();
207	–	char *fgets();
354		FILE *pin;
355		char buf[512];
356	+	int i;
357
358	<	fgets(buf, sizeof(buf), fin);
359	<	if (buf[strlen(buf)-1] == '\n')
360	<	buf[strlen(buf)-1] = '\0';
361	<	if ((pin = popen(buf+1, "r")) == NULL) {
362	<	fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n",
363	<	progname, fname, buf);
364	<	exit(1);
358	>	fgetline(buf, sizeof(buf), fin);
359	>	if (expand) {
360	>	if ((pin = popen(buf+1, "r")) == NULL) {
361	>	fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n",
362	>	progname, fname, buf);
363	>	exit(1);
364	>	}
365	>	xform(buf, pin);
366	>	pclose(pin);
367	>	} else {
368	>	printf("\n%s", buf);
369	>	if (xac > 1) {
370	>	printf(" \| %s -e", xav[0]); /* expand next time */
371	>	for (i = 1; i < xac; i++)
372	>	if (i >= xfa \|\| strcmp(xav[i], "-c"))
373	>	printf(" %s", xav[i]);
374	>	}
375	>	putchar('\n');
376		}
219	–	xform(buf, pin);
220	–	pclose(pin);
377		}
378
379
#	Line 225 \| Line 381 \| *xfobject(fname, fin) / transform an object /*
381		char *fname;
382		FILE *fin;
383		{
384	<	char stmp[MAXSTR];
384	>	char typ[16], nam[MAXSTR];
385		int fn;
386	<
387	<	fscanf(fin, "%s", stmp); /* modifier */
388	<	printf("\n%s ", stmp);
389	<	fscanf(fin, "%s", stmp); /* object type */
390	<	if ((fn = otype(stmp)) < 0) {
386	>	/* modifier and type */
387	>	strcpy(typ, "EOF");
388	>	fgetword(nam, sizeof(nam), fin);
389	>	fgetword(typ, sizeof(typ), fin);
390	>	if ((fn = otype(typ)) < 0) {
391		fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n",
392	<	progname, fname, stmp);
392	>	progname, fname, typ);
393		exit(1);
394		}
395	<	printf("%s ", stmp);
396	<	fscanf(fin, "%s", stmp); /* object name */
241	<	if (idprefix != NULL && issurface(fn))
242	<	printf("%s.%s\n", idprefix, stmp);
395	>	if (ismodifier(fn))
396	>	printf("\n%s %s ", nam, typ);
397		else
398	<	printf("%s\n", stmp);
399	<	/* transform arguments */
398	>	printf("\n%s %s ", newmod != NULL ? newmod : nam,
399	>	invert ? ofun[tinvers[fn]].funame : typ);
400	>	/* object name */
401	>	fgetword(nam, sizeof(nam), fin);
402	>	if (idprefix == NULL \|\| ismodifier(fn))
403	>	printf("%s\n", nam);
404	>	else
405	>	printf("%s.%s\n", idprefix, nam);
406	>	/* transform arguments */
407		if ((*ofun[fn].funp)(fin) < 0) {
408		fprintf(stderr, "%s: (%s): bad %s \"%s\"\n",
409	<	progname, fname, ofun[fn].funame, stmp);
409	>	progname, fname, ofun[fn].funame, nam);
410		exit(1);
411		}
412		}
413
414
415	<	passargs(fin) /* pass on arguments unchanged */
415	>	o_default(fin) /* pass on arguments unchanged */
416		FILE *fin;
417		{
418		register int i;
419	<	register FUNARGS *fa;
419	>	FUNARGS fa;
420
421	<	if ((fa = getfargs(fin)) == NULL)
421	>	if (readfargs(&fa, fin) != 1)
422		return(-1);
423		/* string arguments */
424	<	printf("%d", fa->nsargs);
425	<	for (i = 0; i < fa->nsargs; i++)
426	<	printf(" %s", fa->sarg[i]);
424	>	printf("%d", fa.nsargs);
425	>	for (i = 0; i < fa.nsargs; i++) {
426	>	fputc(' ', stdout);
427	>	fputword(fa.sarg[i], stdout);
428	>	}
429		printf("\n");
430	+	#ifdef IARGS
431		/* integer arguments */
432	<	printf("%d", fa->niargs);
433	<	for (i = 0; i < fa->niargs; i++)
434	<	printf(" %d", fa->iarg[i]);
432	>	printf("%d", fa.niargs);
433	>	for (i = 0; i < fa.niargs; i++)
434	>	printf(" %d", fa.iarg[i]);
435		printf("\n");
436	+	#else
437	+	printf("0\n");
438	+	#endif
439		/* float arguments */
440	<	printf("%d", fa->nfargs);
441	<	for (i = 0; i < fa->nfargs; i++)
442	<	printf(" %18.12g", fa->farg[i]);
440	>	printf("%d", fa.nfargs);
441	>	for (i = 0; i < fa.nfargs; i++)
442	>	printf(" %18.12g", fa.farg[i]);
443		printf("\n");
444	<	freefargs(fa);
444	>	freefargs(&fa);
445		return(0);
446		}
447
#	Line 283 \| Line 450 \| *addxform(fin) / add xf arguments to strings /*
450		FILE *fin;
451		{
452		register int i;
453	<	register FUNARGS *fa;
453	>	int resetarr = 0;
454	>	FUNARGS fa;
455
456	<	if ((fa = getfargs(fin)) == NULL)
456	>	if (readfargs(&fa, fin) != 1)
457		return(-1);
458		/* string arguments */
459	<	printf("%d", fa->nsargs + xac-xfa);
460	<	for (i = 0; i < fa->nsargs; i++)
461	<	printf(" %s", fa->sarg[i]);
459	>	if (xac > xfa && strcmp(xav[xfa], "-i"))
460	>	resetarr = 2;
461	>	printf("%d", fa.nsargs + resetarr + xac-xfa);
462	>	for (i = 0; i < fa.nsargs; i++) {
463	>	fputc(' ', stdout);
464	>	fputword(fa.sarg[i], stdout);
465	>	}
466	>	if (resetarr)
467	>	printf(" -i 1");
468		for (i = xfa; i < xac; i++) /* add xf arguments */
469		printf(" %s", xav[i]);
470		printf("\n");
471	+	#ifdef IARGS
472		/* integer arguments */
473	<	printf("%d", fa->niargs);
474	<	for (i = 0; i < fa->niargs; i++)
475	<	printf(" %d", fa->iarg[i]);
473	>	printf("%d", fa.niargs);
474	>	for (i = 0; i < fa.niargs; i++)
475	>	printf(" %d", fa.iarg[i]);
476		printf("\n");
477	+	#else
478	+	printf("0\n");
479	+	#endif
480		/* float arguments */
481	<	printf("%d", fa->nfargs);
482	<	for (i = 0; i < fa->nfargs; i++)
483	<	printf(" %18.12g", fa->farg[i]);
481	>	printf("%d", fa.nfargs);
482	>	for (i = 0; i < fa.nfargs; i++)
483	>	printf(" %18.12g", fa.farg[i]);
484		printf("\n");
485	<	freefargs(fa);
485	>	freefargs(&fa);
486		return(0);
487		}
488
489
312	–	int
313	–	otype(ofname) /* get object function number from its name */
314	–	register char *ofname;
315	–	{
316	–	register int i;
317	–
318	–	for (i = 0; ofun[i].funame != NULL; i++)
319	–	if (!strcmp(ofun[i].funame, ofname))
320	–	return(i);
321	–
322	–	return(-1); /* not found */
323	–	}
324	–
325	–
490		alias(fin) /* transfer alias */
491		FILE *fin;
492		{
493	<	char alias[MAXSTR];
493	>	char aliasnm[MAXSTR];
494
495	<	if (fscanf(fin, "%s", alias) != 1)
495	>	if (fgetword(aliasnm, MAXSTR, fin) == NULL)
496		return(-1);
497	<	printf("\t%s\n", alias);
497	>	printf("\t%s\n", aliasnm);
498		return(0);
499		}
500
#	Line 338 \| Line 502 \| *FILE fin;**
502		m_glow(fin) /* transform arguments for proximity light */
503		FILE *fin;
504		{
505	<	register FUNARGS *fa;
505	>	FUNARGS fa;
506
507	<	if ((fa = getfargs(fin)) == NULL)
507	>	if (readfargs(&fa, fin) != 1)
508		return(-1);
509	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
509	>	if (fa.nsargs != 0 \|\| fa.nfargs != 4)
510		return(-1);
511		printf("0\n0\n4");
512		printf(" %18.12g %18.12g %18.12g",
513	<	fa->farg[0], fa->farg[1], fa->farg[2]);
514	<	printf(" %18.12g\n", fa->farg[3] * totscale);
515	<	freefargs(fa);
513	>	fa.farg[0], fa.farg[1], fa.farg[2]);
514	>	printf(" %18.12g\n", fa.farg[3] * tot.sca);
515	>	freefargs(&fa);
516		return(0);
517		}
518
#	Line 356 \| Line 520 \| *FILE fin;**
520		m_spot(fin) /* transform arguments for spotlight */
521		FILE *fin;
522		{
523	<	double v[3];
524	<	register FUNARGS *fa;
523	>	FVECT v;
524	>	FUNARGS fa;
525
526	<	if ((fa = getfargs(fin)) == NULL)
526	>	if (readfargs(&fa, fin) != 1)
527		return(-1);
528	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 7)
528	>	if (fa.nsargs != 0 \|\| fa.nfargs != 7)
529		return(-1);
530		printf("0\n0\n7");
531		printf(" %18.12g %18.12g %18.12g %18.12g\n",
532	<	fa->farg[0], fa->farg[1], fa->farg[2], fa->farg[3]);
533	<	multv3(v, fa->farg+4, totxform);
532	>	fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]);
533	>	multv3(v, fa.farg+4, tot.xfm);
534		printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
535	<	freefargs(fa);
535	>	freefargs(&fa);
536		return(0);
537		}
538
539
540	+	m_mist(fin) /* transform arguments for mist */
541	+	FILE *fin;
542	+	{
543	+	FUNARGS fa;
544	+	int i;
545	+
546	+	if (readfargs(&fa, fin) != 1)
547	+	return(-1);
548	+	if (fa.nfargs > 7)
549	+	return(-1);
550	+	printf("%d", fa.nsargs);
551	+	if (idprefix == NULL)
552	+	for (i = 0; i < fa.nsargs; i++)
553	+	printf(" %s", fa.sarg[i]);
554	+	else
555	+	for (i = 0; i < fa.nsargs; i++) {
556	+	char sname[256], *sp;
557	+	register char cp1, cp2 = sname;
558	+	/* add idprefix */
559	+	for (sp = fa.sarg[i]; *sp; sp = cp1) {
560	+	for (cp1 = idprefix; *cp1; )
561	+	cp2++ = cp1++;
562	+	*cp2++ = '.';
563	+	for (cp1 = sp; *cp1 &&
564	+	(cp2++ = cp1++) != '>'; )
565	+	;
566	+	}
567	+	*cp2 = '\0';
568	+	printf(" %s", sname);
569	+	}
570	+	printf("\n0\n%d", fa.nfargs);
571	+	if (fa.nfargs > 2)
572	+	printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca,
573	+	fa.farg[1]/tot.sca, fa.farg[2]/tot.sca);
574	+	for (i = 3; i < fa.nfargs; i++)
575	+	printf(" %12.6g", fa.farg[i]);
576	+	printf("\n");
577	+	freefargs(&fa);
578	+	return(0);
579	+	}
580	+
581	+
582		m_dielectric(fin) /* transform arguments for dielectric */
583		FILE *fin;
584		{
585	<	double pow();
380	<	register FUNARGS *fa;
585	>	FUNARGS fa;
586
587	<	if ((fa = getfargs(fin)) == NULL)
587	>	if (readfargs(&fa, fin) != 1)
588		return(-1);
589	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 5)
589	>	if (fa.nsargs != 0 \|\| fa.nfargs != 5)
590		return(-1);
591		printf("0\n0\n5");
592	<	printf(" %18.12g %18.12g %18.12g",
593	<	pow(fa->farg[0], 1.0/totscale),
594	<	pow(fa->farg[1], 1.0/totscale),
595	<	pow(fa->farg[2], 1.0/totscale));
596	<	printf(" %18.12g %18.12g\n", fa->farg[3], fa->farg[4]);
597	<	freefargs(fa);
592	>	printf(" %12.6g %12.6g %12.6g",
593	>	pow(fa.farg[0], 1.0/tot.sca),
594	>	pow(fa.farg[1], 1.0/tot.sca),
595	>	pow(fa.farg[2], 1.0/tot.sca));
596	>	printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]);
597	>	freefargs(&fa);
598		return(0);
599		}
600
#	Line 397 \| Line 602 \| *FILE fin;**
602		m_interface(fin) /* transform arguments for interface */
603		FILE *fin;
604		{
605	<	double pow();
401	<	register FUNARGS *fa;
605	>	FUNARGS fa;
606
607	<	if ((fa = getfargs(fin)) == NULL)
607	>	if (readfargs(&fa, fin) != 1)
608		return(-1);
609	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
609	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
610		return(-1);
611		printf("0\n0\n8\n");
612	<	printf("%18.12g %18.12g %18.12g",
613	<	pow(fa->farg[0], 1.0/totscale),
614	<	pow(fa->farg[1], 1.0/totscale),
615	<	pow(fa->farg[2], 1.0/totscale));
616	<	printf(" %18.12g\n", fa->farg[3]);
617	<	printf("%18.12g %18.12g %18.12g",
618	<	pow(fa->farg[4], 1.0/totscale),
619	<	pow(fa->farg[5], 1.0/totscale),
620	<	pow(fa->farg[6], 1.0/totscale));
621	<	printf(" %18.12g\n", fa->farg[7]);
622	<	freefargs(fa);
612	>	printf("%12.6g %12.6g %12.6g",
613	>	pow(fa.farg[0], 1.0/tot.sca),
614	>	pow(fa.farg[1], 1.0/tot.sca),
615	>	pow(fa.farg[2], 1.0/tot.sca));
616	>	printf(" %12.6g\n", fa.farg[3]);
617	>	printf("%12.6g %12.6g %12.6g",
618	>	pow(fa.farg[4], 1.0/tot.sca),
619	>	pow(fa.farg[5], 1.0/tot.sca),
620	>	pow(fa.farg[6], 1.0/tot.sca));
621	>	printf(" %12.6g\n", fa.farg[7]);
622	>	freefargs(&fa);
623		return(0);
624		}
625
#	Line 424 \| Line 628 \| *text(fin) / transform text arguments /*
628		FILE *fin;
629		{
630		int i;
631	<	double v[3];
632	<	register FUNARGS *fa;
631	>	FVECT v;
632	>	FUNARGS fa;
633
634	<	if ((fa = getfargs(fin)) == NULL)
634	>	if (readfargs(&fa, fin) != 1)
635		return(-1);
636	<	if (fa->niargs != 0 \|\| (fa->nfargs != 9 &&
433	<	fa->nfargs != 11 && fa->nfargs != 15))
636	>	if (fa.nfargs < 9)
637		return(-1);
638		/* string arguments */
639	<	printf("%d", fa->nsargs);
640	<	for (i = 0; i < fa->nsargs; i++)
641	<	printf(" %s", fa->sarg[i]);
642	<	printf("\n0\n%d\n", fa->nfargs);
639	>	printf("%d", fa.nsargs);
640	>	for (i = 0; i < fa.nsargs; i++) {
641	>	fputc(' ', stdout);
642	>	fputword(fa.sarg[i], stdout);
643	>	}
644	>	printf("\n0\n%d\n", fa.nfargs);
645		/* anchor point */
646	<	multp3(v, fa->farg, totxform);
646	>	multp3(v, fa.farg, tot.xfm);
647		printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
648		/* right vector */
649	<	multv3(v, fa->farg+3, totxform);
649	>	multv3(v, fa.farg+3, tot.xfm);
650		printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
651		/* down vector */
652	<	multv3(v, fa->farg+6, totxform);
653	<	printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
654	<	/* forground and background */
655	<	if (fa->nfargs == 11)
656	<	printf(" %18.12g %18.12g\n", fa->farg[9], fa->farg[10]);
657	<	else if (fa->nfargs == 15) {
658	<	printf(" %18.12g %18.12g %18.12g\n",
454	<	fa->farg[9], fa->farg[10], fa->farg[11]);
455	<	printf(" %18.12g %18.12g %18.12g\n",
456	<	fa->farg[12], fa->farg[13], fa->farg[14]);
652	>	multv3(v, fa.farg+6, tot.xfm);
653	>	printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]);
654	>	/* remaining arguments */
655	>	for (i = 9; i < fa.nfargs; i++) {
656	>	if (i%3 == 0)
657	>	putchar('\n');
658	>	printf(" %18.12g", fa.farg[i]);
659		}
660	<	freefargs(fa);
660	>	putchar('\n');
661	>	freefargs(&fa);
662		return(0);
663		}
664
#	Line 463 \| Line 666 \| *FILE fin;**
666		o_source(fin) /* transform source arguments */
667		FILE *fin;
668		{
669	<	double dv[3];
670	<	register FUNARGS *fa;
669	>	FVECT dv;
670	>	FUNARGS fa;
671
672	<	if ((fa = getfargs(fin)) == NULL)
672	>	if (readfargs(&fa, fin) != 1)
673		return(-1);
674	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
674	>	if (fa.nsargs != 0 \|\| fa.nfargs != 4)
675		return(-1);
676		/* transform direction vector */
677	<	multv3(dv, fa->farg, totxform);
677	>	multv3(dv, fa.farg, tot.xfm);
678		/* output */
679		printf("0\n0\n4");
680		printf(" %18.12g %18.12g %18.12g %18.12g\n",
681	<	dv[0], dv[1], dv[2], fa->farg[3]);
682	<	freefargs(fa);
681	>	dv[0], dv[1], dv[2], fa.farg[3]);
682	>	freefargs(&fa);
683		return(0);
684		}
685
#	Line 484 \| Line 687 \| *FILE fin;**
687		o_sphere(fin) /* transform sphere arguments */
688		FILE *fin;
689		{
690	<	double cent[3], rad;
691	<	register FUNARGS *fa;
690	>	FVECT cent;
691	>	double rad;
692	>	FUNARGS fa;
693
694	<	if ((fa = getfargs(fin)) == NULL)
694	>	if (readfargs(&fa, fin) != 1)
695		return(-1);
696	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
696	>	if (fa.nsargs != 0 \|\| fa.nfargs != 4)
697		return(-1);
698
699	<	multp3(cent, fa->farg, totxform); /* transform center */
699	>	multp3(cent, fa.farg, tot.xfm); /* transform center */
700
701	<	rad = fa->farg[3] * totscale; /* scale radius */
701	>	rad = fa.farg[3] * tot.sca; /* scale radius */
702
703		printf("0\n0\n4");
704		printf(" %18.12g %18.12g %18.12g %18.12g\n",
705		cent[0], cent[1], cent[2], rad);
706	<	freefargs(fa);
706	>	freefargs(&fa);
707		return(0);
708		}
709
#	Line 507 \| Line 711 \| *FILE fin;**
711		o_face(fin) /* transform face arguments */
712		FILE *fin;
713		{
714	<	double p[3];
714	>	FVECT p;
715		register int i;
716	<	register FUNARGS *fa;
716	>	FUNARGS fa;
717
718	<	if ((fa = getfargs(fin)) == NULL)
718	>	if (readfargs(&fa, fin) != 1)
719		return(-1);
720	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs % 3)
720	>	if (fa.nsargs != 0 \|\| fa.nfargs % 3)
721		return(-1);
722
723	<	printf("0\n0\n%d\n", fa->nfargs);
723	>	printf("0\n0\n%d\n", fa.nfargs);
724
725	<	for (i = 0; i < fa->nfargs; i += 3) {
725	>	for (i = 0; i < fa.nfargs; i += 3) {
726		if (reverse)
727	<	multp3(p, fa->farg+(fa->nfargs-i-3), totxform);
727	>	multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm);
728		else
729	<	multp3(p, fa->farg+i, totxform);
729	>	multp3(p, fa.farg+i, tot.xfm);
730		printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]);
731		}
732	<	freefargs(fa);
732	>	freefargs(&fa);
733		return(0);
734		}
735
#	Line 533 \| Line 737 \| *FILE fin;**
737		o_cone(fin) /* transform cone and cup arguments */
738		FILE *fin;
739		{
740	<	double p0[3], p1[3], r0, r1;
741	<	register FUNARGS *fa;
740	>	FVECT p0, p1;
741	>	double r0, r1;
742	>	FUNARGS fa;
743
744	<	if ((fa = getfargs(fin)) == NULL)
744	>	if (readfargs(&fa, fin) != 1)
745		return(-1);
746	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
746	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
747		return(-1);
748
749		printf("0\n0\n8\n");
750
751	<	multp3(p0, fa->farg, totxform);
752	<	multp3(p1, fa->farg+3, totxform);
753	<	r0 = fa->farg[6] * totscale;
754	<	r1 = fa->farg[7] * totscale;
751	>	multp3(p0, fa.farg, tot.xfm);
752	>	multp3(p1, fa.farg+3, tot.xfm);
753	>	r0 = fa.farg[6] * tot.sca;
754	>	r1 = fa.farg[7] * tot.sca;
755		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
756		printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]);
757		printf(" %18.12g %18.12g\n", r0, r1);
758
759	<	freefargs(fa);
759	>	freefargs(&fa);
760		return(0);
761		}
762
#	Line 559 \| Line 764 \| *FILE fin;**
764		o_cylinder(fin) /* transform cylinder and tube arguments */
765		FILE *fin;
766		{
767	<	double p0[3], p1[3], rad;
768	<	register FUNARGS *fa;
767	>	FVECT p0, p1;
768	>	double rad;
769	>	FUNARGS fa;
770
771	<	if ((fa = getfargs(fin)) == NULL)
771	>	if (readfargs(&fa, fin) != 1)
772		return(-1);
773	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 7)
773	>	if (fa.nsargs != 0 \|\| fa.nfargs != 7)
774		return(-1);
775
776		printf("0\n0\n7\n");
777
778	<	multp3(p0, fa->farg, totxform);
779	<	multp3(p1, fa->farg+3, totxform);
780	<	rad = fa->farg[6] * totscale;
778	>	multp3(p0, fa.farg, tot.xfm);
779	>	multp3(p1, fa.farg+3, tot.xfm);
780	>	rad = fa.farg[6] * tot.sca;
781		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
782		printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]);
783		printf(" %18.12g\n", rad);
784	<	freefargs(fa);
784	>	freefargs(&fa);
785		return(0);
786		}
787
#	Line 583 \| Line 789 \| *FILE fin;**
789		o_ring(fin) /* transform ring arguments */
790		FILE *fin;
791		{
792	<	double p0[3], pd[3], r0, r1;
793	<	register FUNARGS *fa;
792	>	FVECT p0, pd;
793	>	double r0, r1;
794	>	FUNARGS fa;
795
796	<	if ((fa = getfargs(fin)) == NULL)
796	>	if (readfargs(&fa, fin) != 1)
797		return(-1);
798	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
798	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
799		return(-1);
800
801		printf("0\n0\n8\n");
802
803	<	multp3(p0, fa->farg, totxform);
804	<	multv3(pd, fa->farg+3, totxform);
805	<	r0 = fa->farg[6] * totscale;
806	<	r1 = fa->farg[7] * totscale;
803	>	multp3(p0, fa.farg, tot.xfm);
804	>	multv3(pd, fa.farg+3, tot.xfm);
805	>	if (invert) {
806	>	pd[0] = -pd[0];
807	>	pd[1] = -pd[1];
808	>	pd[2] = -pd[2];
809	>	}
810	>	r0 = fa.farg[6] * tot.sca;
811	>	r1 = fa.farg[7] * tot.sca;
812		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
813		printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]);
814		printf(" %18.12g %18.12g\n", r0, r1);
815	<	freefargs(fa);
815	>	freefargs(&fa);
816		return(0);
817		}
818
819
820	<	FUNARGS *
609	<	getfargs(fp) /* get function arguments from stream */
610	<	FILE *fp;
820	>	initotypes() /* initialize ofun[] array */
821		{
612	–	char *strcpy();
613	–	char sbuf[MAXSTR];
614	–	int n;
615	–	register FUNARGS *fa;
822		register int i;
823
824	<	if ((fa = (FUNARGS *)malloc((unsigned)sizeof(FUNARGS))) == NULL)
825	<	goto memerr;
826	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
827	<	return(NULL);
828	<	if (fa->nsargs = n) {
829	<	fa->sarg = (char *)malloc((unsigned)fa->nsargssizeof(char *));
830	<	if (fa->sarg == NULL)
831	<	goto memerr;
832	<	for (i = 0; i < fa->nsargs; i++) {
833	<	if (fscanf(fp, "%s", sbuf) != 1)
834	<	return(NULL);
835	<	if ((fa->sarg[i] = malloc((unsigned)strlen(sbuf)+1)) == NULL)
836	<	goto memerr;
837	<	strcpy(fa->sarg[i], sbuf);
838	<	}
839	<	} else
840	<	fa->sarg = NULL;
841	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
842	<	return(NULL);
843	<	if (fa->niargs = n) {
844	<	fa->iarg = (int )malloc((unsigned)fa->niargssizeof(int));
845	<	if (fa->iarg == NULL)
846	<	goto memerr;
847	<	for (i = 0; i < fa->niargs; i++)
848	<	if (fscanf(fp, "%d", &fa->iarg[i]) != 1)
849	<	return(NULL);
850	<	} else
851	<	fa->iarg = NULL;
852	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
853	<	return(NULL);
854	<	if (fa->nfargs = n) {
855	<	fa->farg = (double )malloc((unsigned)fa->nfargssizeof(double));
856	<	if (fa->farg == NULL)
857	<	goto memerr;
858	<	for (i = 0; i < fa->nfargs; i++)
859	<	if (fscanf(fp, "%lf", &fa->farg[i]) != 1)
860	<	return(NULL);
655	<	} else
656	<	fa->farg = NULL;
657	<	return(fa);
658	<	memerr:
659	<	fprintf(stderr, "%s: out of memory in getfargs\n", progname);
660	<	exit(1);
824	>	if (ofun[OBJ_SOURCE].funp == o_source)
825	>	return; /* done already */
826	>	/* functions get new transform */
827	>	for (i = 0; i < NUMOTYPE; i++)
828	>	if (hasfunc(i))
829	>	ofun[i].funp = addxform;
830	>	/* special cases */
831	>	ofun[OBJ_SOURCE].funp = o_source;
832	>	ofun[OBJ_SPHERE].funp =
833	>	ofun[OBJ_BUBBLE].funp = o_sphere;
834	>	ofun[OBJ_FACE].funp = o_face;
835	>	ofun[OBJ_CONE].funp =
836	>	ofun[OBJ_CUP].funp = o_cone;
837	>	ofun[OBJ_CYLINDER].funp =
838	>	ofun[OBJ_TUBE].funp = o_cylinder;
839	>	ofun[OBJ_RING].funp = o_ring;
840	>	ofun[OBJ_INSTANCE].funp = addxform;
841	>	ofun[MAT_GLOW].funp = m_glow;
842	>	ofun[MAT_SPOT].funp = m_spot;
843	>	ofun[MAT_DIELECTRIC].funp = m_dielectric;
844	>	ofun[MAT_INTERFACE].funp = m_interface;
845	>	ofun[MAT_MIST].funp = m_mist;
846	>	ofun[PAT_CTEXT].funp =
847	>	ofun[PAT_BTEXT].funp =
848	>	ofun[MIX_TEXT].funp = text;
849	>	ofun[MOD_ALIAS].funp = alias;
850	>	/* surface inverses */
851	>	tinvers[OBJ_FACE] = OBJ_FACE;
852	>	tinvers[OBJ_SOURCE] = OBJ_SOURCE;
853	>	tinvers[OBJ_CONE] = OBJ_CUP;
854	>	tinvers[OBJ_CUP] = OBJ_CONE;
855	>	tinvers[OBJ_SPHERE] = OBJ_BUBBLE;
856	>	tinvers[OBJ_BUBBLE] = OBJ_SPHERE;
857	>	tinvers[OBJ_RING] = OBJ_RING;
858	>	tinvers[OBJ_CYLINDER] = OBJ_TUBE;
859	>	tinvers[OBJ_TUBE] = OBJ_CYLINDER;
860	>	tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */
861		}
862
863
864	<	freefargs(fa) /* free memory associated with fa */
865	<	register FUNARGS *fa;
864	>	#ifdef OLDXFORM
865	>	openmain(fname)
866	>	char *fname;
867		{
868	<	register int i;
868	>	if (fname == NULL) {
869	>	strcpy(mainfn, "standard input");
870	>	mainfp = stdin;
871	>	return;
872	>	}
873	>	if (mainfp != NULL) {
874	>	if (!strcmp(fname, mainfn)) {
875	>	rewind(mainfp);
876	>	return;
877	>	}
878	>	fclose(mainfp);
879	>	}
880	>	if ((mainfp = fopen(fname, "r")) == NULL) {
881	>	fprintf(stderr, "%s: cannot open file \"%s\"\n",
882	>	progname, fname);
883	>	exit(1);
884	>	}
885	>	strcpy(mainfn, fname);
886	>	}
887	>	#else
888	>	openmain(iname) /* open input, changing directory for file */
889	>	char *iname;
890	>	{
891	>	static char origdir[PATH_MAX];
892	>	static char curfn[PATH_MAX];
893	>	static int diffdir;
894	>	register char *fpath;
895
896	<	for (i = 0; i < fa->nsargs; i++)
897	<	free(fa->sarg[i]);
898	<	if (fa->nsargs)
899	<	free(fa->sarg);
900	<	if (fa->niargs)
901	<	free(fa->iarg);
902	<	if (fa->nfargs)
903	<	free(fa->farg);
904	<	free(fa);
896	>	if (iname == NULL) { /* standard input */
897	>	if (mainfp == NULL) {
898	>	register int c;
899	>	strcpy(mainfn, "standard input");
900	>	if (nrept <= 1) {
901	>	mainfp = stdin;
902	>	return; /* just read once */
903	>	}
904	>	/* else copy */
905	>	if ((mainfp = tmpfile()) == NULL) {
906	>	fprintf(stderr,
907	>	"%s: cannot create temporary file\n",
908	>	progname);
909	>	exit(1);
910	>	}
911	>	while ((c = getc(stdin)) != EOF)
912	>	putc(c, mainfp);
913	>	}
914	>	rewind(mainfp); /* rewind copy */
915	>	return;
916	>	}
917	>	if (mainfp == NULL) { /* first call, initialize */
918	>	getcwd(origdir, sizeof(origdir));
919	>	} else if (!strcmp(iname, curfn)) { /* just need to rewind? */
920	>	rewind(mainfp);
921	>	return;
922	>	} else { /* else close old stream */
923	>	fclose(mainfp);
924	>	mainfp = NULL;
925	>	if (diffdir) { /* return to our directory */
926	>	chdir(origdir);
927	>	diffdir = 0;
928	>	}
929	>	}
930	>	strcpy(curfn, iname); /* remember input name */
931	>	/* get full path for file */
932	>	if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) {
933	>	fprintf(stderr, "%s: cannot find file \"%s\"\n",
934	>	progname, iname);
935	>	exit(1);
936	>	}
937	>	if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */
938	>	fpath += 2;
939	>	/* record path name */
940	>	strcpy(mainfn, fpath);
941	>	if (expand) { /* change to local directory */
942	>	register char cp = fpath + strlen(fpath); / get dir. */
943	>	while (cp > fpath) {
944	>	cp--;
945	>	if (ISDIRSEP(*cp)) {
946	>	if (cp == fpath)
947	>	cp++; /* root special case */
948	>	break;
949	>	}
950	>	}
951	>	*cp = '\0';
952	>	if (fpath[0]) { /* change to new directory? */
953	>	if (chdir(fpath) < 0) {
954	>	fprintf(stderr,
955	>	"%s: cannot change directory to \"%s\"\n",
956	>	progname, fpath);
957	>	exit(1);
958	>	}
959	>	diffdir++;
960	>	}
961	>	/* get final path component */
962	>	for (fpath = iname+strlen(iname);
963	>	fpath > iname && !ISDIRSEP(fpath[-1]); fpath--)
964	>	;
965	>	}
966	>	/* finally, open the file */
967	>	if ((mainfp = fopen(fpath, "r")) == NULL) {
968	>	fprintf(stderr, "%s: cannot open file \"%s\"\n",
969	>	progname, mainfn);
970	>	exit(1);
971	>	}
972		}
973	+	#endif

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Comparing ray/src/gen/xform.c (file contents): Revision 1.5 by greg, Wed Jun 7 10:09:07 1989 UTC vs. Revision 2.28 by schorsch, Mon Jun 30 14:59:11 2003 UTC

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Comparing ray/src/gen/xform.c (file contents):
Revision 1.5 by greg, Wed Jun 7 10:09:07 1989 UTC vs.
Revision 2.28 by schorsch, Mon Jun 30 14:59:11 2003 UTC