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

Comparing ray/src/gen/xform.c (file contents):
Revision 1.9 by greg, Fri Oct 13 19:34:17 1989 UTC vs.
Revision 2.54 by greg, Sat Jun 7 05:09:45 2025 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
14	+	#include "platform.h"
15	+	#include "rtio.h"
16	+	#include "rtmath.h"
17	+	#include "object.h"
18	+	#include "otypes.h"
19
20	–	typedef struct {
21	–	char funame; / function name */
22	–	int (funp)(); / pointer to function */
23	–	} FUN;
24	–
20		int xac; /* global xform argument count */
21		char *xav; / global xform argument pointer */
22		int xfa; /* start of xf arguments */
23
24	<	double totxform[4][4]; /* total transformation matrix */
25	<	double totscale; /* total scale factor */
31	<	int reverse; /* boolean true if scene inverted */
24	>	XF tot; /* total transformation */
25	>	int reverse; /* boolean true if scene mirrored */
26
27	<	int expand = 0; /* boolean true to expand commands */
27	>	int invert; /* boolean true to invert surfaces */
28
29	<	char idprefix = NULL; / prefix for object identifiers */
29	>	int expand; /* boolean true to expand commands */
30
31	<	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();
31	>	char newmod; / new modifier for surfaces */
32
33	<	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	<	};
33	>	char idprefix; / prefix for object identifiers */
34
35	<	#define issurface(t) ((t)<=9)
35	>	FUN ofun[NUMOTYPE] = INIT_OTYPE; /* default types and actions */
36
37	<	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;
37	>	short tinvers[NUMOTYPE]; /* inverse types for surfaces */
38
39	<	#define MAXSTR 512 /* maximum string length */
39	>	int nrept = 1; /* number of array repetitions */
40
41	<	FUNARGS *getfargs();
104	<	char *malloc();
41	>	int stdinused = 0; /* stdin has been used by -f option? */
42
43	<	#define progname (xav[0])
43	>	char mainfn[PATH_MAX]; /* main file name */
44	>	FILE mainfp = NULL; / main file pointer */
45
46	+	#define progname (xav[0])
47
48	<	main(argc, argv) /* get transform options and transform file */
49	<	int argc;
50	<	char *argv[];
48	>	static int doargf(int ac, char **av, int fi);
49	>	static int doarray(int ac, char **av, int ai);
50	>	static void xform(char name, FILE fin);
51	>	static void xfcomm(char fname, FILE fin);
52	>	static void xfobject(char fname, FILE fin);
53	>	static int addxform(FILE *fin);
54	>	static int alias(FILE *fin);
55	>	void initotypes(void); /* XXX conflict with otypes.h */
56	>	static void openmain(char *iname);
57	>
58	>
59	>	int
60	>	main( /* get transform options and transform file */
61	>	int argc,
62	>	char *argv[]
63	>	)
64		{
65	<	FILE *fopen();
114	<	FILE *fp;
65	>	int mal_prefix = 0;
66		int a;
67	<	/* check for array */
67	>	/* check for argument list file */
68		for (a = 1; a < argc; a++)
69	+	if (!strcmp(argv[a], "-f"))
70	+	return(doargf(argc, argv, a));
71	+	/* check for regular array */
72	+	for (a = 1; a < argc; a++)
73		if (!strcmp(argv[a], "-a"))
74		return(doarray(argc, argv, a));
75
76	+	initotypes(); /* initialize */
77	+	invert = 0;
78	+	expand = 1;
79	+	newmod = NULL;
80	+	idprefix = NULL;
81	+
82		for (a = 1; a < argc; a++) {
83		if (argv[a][0] == '-')
84		switch (argv[a][1]) {
85	+	case 'm':
86	+	if (argv[a][2] \| (a+1 >= argc))
87	+	break;
88	+	a++;
89	+	if (newmod == NULL)
90	+	newmod = argv[a];
91	+	continue;
92		case 'n':
93	<	if (argv[a][2] \|\| a+1 >= argc)
93	>	if (argv[a][2] \| (a+1 >= argc))
94		break;
95	<	idprefix = argv[++a];
95	>	a++;
96	>	if (idprefix == NULL)
97	>	idprefix = argv[a];
98	>	else {
99	>	char *newp;
100	>	newp = (char *)malloc(strlen(idprefix)+
101	>	strlen(argv[a])+2);
102	>	if (newp == NULL)
103	>	exit(2);
104	>	sprintf(newp, "%s.%s",
105	>	idprefix, argv[a]);
106	>	if (mal_prefix++)
107	>	free(idprefix);
108	>	idprefix = newp;
109	>	}
110		continue;
111	+	case 'c':
112	+	if (argv[a][2])
113	+	break;
114	+	expand = 0;
115	+	continue;
116		case 'e':
117		if (argv[a][2])
118		break;
119		expand = 1;
120		continue;
121	+	case 'I':
122	+	if (argv[a][2])
123	+	break;
124	+	invert = !invert;
125	+	continue;
126		}
127		break;
128		}
#	Line 138 \| Line 130 \| *char argv[];**
130		xav = argv;
131		xfa = a;
132
133	<	totscale = 1.0;
142	<	setident4(totxform);
133	>	a += xf(&tot, argc-a, argv+a);
134
135	<	a += xf(totxform, &totscale, argc-a, argv+a);
135	>	if ( (reverse = (tot.sca < 0.0)) )
136	>	tot.sca = -tot.sca;
137	>	if (invert)
138	>	reverse = !reverse;
139
146	–	if (reverse = totscale < 0.0)
147	–	totscale = -totscale;
148	–
140		if (a < argc && argv[a][0] == '-') {
141		fprintf(stderr, "%s: command line error at '%s'\n",
142		argv[0], argv[a]);
143		exit(1);
144		}
154	–	xac = a;
145
146	<	putchar('#'); /* simple header */
146	>	xac = a;
147	>	/* simple header */
148	>	putchar('#');
149		for (a = 0; a < xac; a++)
150		printf(" %s", xav[a]);
151		putchar('\n');
152	<
153	<	if (a == argc)
154	<	xform("standard input", stdin);
155	<	else
156	<	for ( ; a < argc; a++) {
157	<	if ((fp = fopen(argv[a], "r")) == NULL) {
166	<	fprintf(stderr, "%s: cannot open \"%s\"\n",
167	<	progname, argv[a]);
168	<	exit(1);
169	<	}
170	<	xform(argv[a], fp);
171	<	fclose(fp);
152	>	/* transform input */
153	>	if (xac == argc) {
154	>	if (stdinused) {
155	>	fprintf(stderr, "%s: cannot use stdin more than once\n",
156	>	argv[0]);
157	>	exit(1);
158		}
159	+	openmain(NULL);
160	+	xform(mainfn, mainfp);
161	+	} else
162	+	for (a = xac; a < argc; a++) {
163	+	openmain(argv[a]);
164	+	xform(mainfn, mainfp);
165	+	}
166
167	+	if (mal_prefix)
168	+	free(idprefix);
169		return(0);
170		}
171
172
173	<	doarray(ac, av, ai) /* make array */
174	<	char **av;
175	<	int ac, ai;
173	>	int
174	>	doargf( /* take argument list from file */
175	>	int ac,
176	>	char **av,
177	>	int fi
178	>	)
179		{
180	+	int inquote;
181		char newav[256], *avp;
182	+	char argbuf[2048];
183	+	char *newid, newidbuf[128];
184	+	char *oldid;
185	+	char *cp;
186	+	FILE *argfp;
187	+	int n, i, k, newac, err;
188	+
189	+	if (fi >= ac-1 \|\| (av[fi+1][0] == '-' && av[fi+1][1] != '\0')) {
190	+	fprintf(stderr, "%s: missing file for -f option\n", av[0]);
191	+	exit(1);
192	+	}
193	+	if (av[fi+1][0] == '-' && av[fi+1][1] == '\0') {
194	+	if (stdinused++) {
195	+	fprintf(stderr,
196	+	"%s: cannot use stdin more than once\n",
197	+	av[0]);
198	+	exit(1);
199	+	}
200	+	argfp = stdin;
201	+	n = 100; /* we just don't know! */
202	+	} else {
203	+	if ((argfp = fopen(av[fi+1], "r")) == NULL) {
204	+	fprintf(stderr,
205	+	"%s: cannot open argument file \"%s\"\n",
206	+	av[0], av[fi+1]);
207	+	exit(1);
208	+	}
209	+	n = 0; /* count number of lines in file */
210	+	while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL)
211	+	n += (argbuf[0] != '\0') & (argbuf[0] != '#');
212	+	if (!n) {
213	+	fprintf(stderr, "%s: empty argument file \"%s\"\n",
214	+	av[0], av[fi+1]);
215	+	exit(1);
216	+	}
217	+	rewind(argfp);
218	+	}
219	+	nrept *= n;
220	+	err = 0; k = 0; /* read each arg list and call main */
221	+	while (fgetline(argbuf,sizeof(argbuf),argfp) != NULL) {
222	+	if (!argbuf[0] \| (argbuf[0] == '#')) {
223	+	printf("%s\n", argbuf);
224	+	continue;
225	+	}
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	+	newid = newidbuf;
262	+	oldid = NULL;
263	+	for (i = 2; i < newac; i++)
264	+	if (!strcmp(avp[i-1], "-n")) {
265	+	oldid = avp[i];
266	+	if (strlen(oldid)+32 > sizeof(newidbuf)) {
267	+	newid = (char *)malloc(strlen(oldid)+32);
268	+	if (newid == NULL)
269	+	exit(2);
270	+	}
271	+	avp[i] = newid;
272	+	break;
273	+	}
274	+	if (oldid == NULL) {
275	+	newav[0] = av[0];
276	+	newav[1] = "-n";
277	+	newav[2] = newid;
278	+	avp = newav;
279	+	newac += 2;
280	+	}
281	+	if (oldid == NULL)
282	+	sprintf(newid, "i%d", k);
283	+	else
284	+	sprintf(newid, "%s.%d", oldid, k);
285	+	err \|= main(newac, avp);
286	+	if (newid != newidbuf)
287	+	free(newid);
288	+	k++;
289	+	}
290	+	fclose(argfp);
291	+	return(err);
292	+	}
293	+
294	+
295	+	int
296	+	doarray( /* make array */
297	+	int ac,
298	+	char **av,
299	+	int ai
300	+	)
301	+	{
302	+	char newav[256], *avp;
303		char newid[128], repts[32];
304		char *oldid = NULL;
305	<	int i, err;
305	>	int n, i, err;
306
307	+	if (ai >= ac-1 \|\| (n = atoi(av[ai+1])) <= 0) {
308	+	fprintf(stderr, "%s: missing count for -a option\n", av[0]);
309	+	exit(1);
310	+	}
311	+	nrept *= n;
312		avp = newav+2;
313		avp[0] = av[0];
314		for (i = 1; i < ac; i++)
#	Line 203 \| Line 328 \| int ac, ai;
328		ac += 2;
329		}
330		err = 0;
331	<	for (i = 0; i < atoi(av[ai+1]); i++) {
331	>	for (i = 0; i < n; i++) {
332		if (oldid == NULL)
333		sprintf(newid, "a%d", i);
334		else
#	Line 215 \| Line 340 \| int ac, ai;
340		}
341
342
343	<	xform(name, fin) /* transform stream by totxform */
344	<	char *name;
345	<	register FILE *fin;
343	>	void
344	>	xform( /* transform stream by tot.xfm */
345	>	char *name,
346	>	FILE *fin
347	>	)
348		{
349	<	register int c;
349	>	int nobjs = 0;
350	>	int c;
351
352		while ((c = getc(fin)) != EOF) {
353		if (isspace(c)) /* blank */
#	Line 234 \| Line 362 \| *register FILE fin;**
362		} else if (c == '!') { /* command */
363		ungetc(c, fin);
364		xfcomm(name, fin);
365	+	nobjs++;
366		} else { /* object */
367		ungetc(c, fin);
368		xfobject(name, fin);
369	+	nobjs++;
370		}
371		}
372	+	if (nobjs == 0)
373	+	fprintf(stderr, "%s: (%s): warning - empty file\n",
374	+	progname, name);
375		}
376
377
378	<	xfcomm(fname, fin) /* transform a command */
379	<	FILE *fin;
378	>	void
379	>	xfcomm( /* transform a command */
380	>	char *fname,
381	>	FILE *fin
382	>	)
383		{
248	–	FILE *popen();
249	–	char *fgetline();
384		FILE *pin;
385	<	char buf[512];
385	>	char buf[2048];
386		int i;
387
388		fgetline(buf, sizeof(buf), fin);
#	Line 259 \| Line 393 \| *FILE fin;**
393		exit(1);
394		}
395		xform(buf, pin);
396	<	pclose(pin);
396	>	if (pclose(pin) != 0)
397	>	fprintf(stderr, "%s: (%s): warning - bad status from \"%s\"\n",
398	>	progname, fname, buf);
399		} else {
400	<	printf("\n%s \| %s -e", buf, xav[0]);
401	<	for (i = 1; i < xac; i++)
402	<	printf(" %s", xav[i]);
400	>	printf("\n%s", buf);
401	>	if (xac > 1) {
402	>	printf(" \| %s -e", xav[0]); /* expand next time */
403	>	for (i = 1; i < xac; i++)
404	>	if (i >= xfa \|\| strcmp(xav[i], "-c"))
405	>	printf(" %s", xav[i]);
406	>	}
407		putchar('\n');
408		}
409		}
410
411
412	<	xfobject(fname, fin) /* transform an object */
413	<	char *fname;
414	<	FILE *fin;
412	>	void
413	>	xfobject( /* transform an object */
414	>	char *fname,
415	>	FILE *fin
416	>	)
417		{
418	<	char stmp[MAXSTR];
418	>	char typ[16], nam[MAXSTR];
419		int fn;
420	<
421	<	fscanf(fin, "%s", stmp); /* modifier */
422	<	printf("\n%s ", stmp);
423	<	fscanf(fin, "%s", stmp); /* object type */
424	<	if ((fn = otype(stmp)) < 0) {
420	>	/* modifier and type */
421	>	strcpy(typ, "EOF");
422	>	fgetword(nam, sizeof(nam), fin);
423	>	fgetword(typ, sizeof(typ), fin);
424	>	if ((fn = otype(typ)) < 0) {
425		fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n",
426	<	progname, fname, stmp);
426	>	progname, fname, typ);
427		exit(1);
428		}
429	<	printf("%s ", stmp);
430	<	fscanf(fin, "%s", stmp); /* object name */
431	<	if (idprefix != NULL && issurface(fn))
432	<	printf("%s.%s\n", idprefix, stmp);
433	<	else
434	<	printf("%s\n", stmp);
435	<	/* transform arguments */
429	>	putchar('\n');
430	>	if (ismodifier(fn)) {
431	>	fputword(nam, stdout);
432	>	printf(" %s ", typ);
433	>	} else {
434	>	fputword(newmod != NULL ? newmod : nam, stdout);
435	>	printf(" %s ", invert ? ofun[tinvers[fn]].funame : typ);
436	>	}
437	>	/* object name */
438	>	fgetword(nam, sizeof(nam), fin);
439	>	if (idprefix == NULL \|\| ismodifier(fn))
440	>	fputword(nam, stdout);
441	>	else {
442	>	char nnam[MAXSTR];
443	>	sprintf(nnam, "%s.%s", idprefix, nam);
444	>	fputword(nnam, stdout);
445	>	}
446	>	putchar('\n');
447	>	/* transform arguments */
448		if ((*ofun[fn].funp)(fin) < 0) {
449		fprintf(stderr, "%s: (%s): bad %s \"%s\"\n",
450	<	progname, fname, ofun[fn].funame, stmp);
450	>	progname, fname, ofun[fn].funame, nam);
451		exit(1);
452		}
453		}
454
455
456	<	passargs(fin) /* pass on arguments unchanged */
457	<	FILE *fin;
456	>	int
457	>	o_default( /* pass on arguments unchanged */
458	>	FILE *fin
459	>	)
460		{
461	<	register int i;
462	<	register FUNARGS *fa;
461	>	int i;
462	>	FUNARGS fa;
463
464	<	if ((fa = getfargs(fin)) == NULL)
464	>	if (readfargs(&fa, fin) != 1)
465		return(-1);
466		/* string arguments */
467	<	printf("%d", fa->nsargs);
468	<	for (i = 0; i < fa->nsargs; i++)
469	<	printf(" %s", fa->sarg[i]);
467	>	printf("%d", fa.nsargs);
468	>	for (i = 0; i < fa.nsargs; i++) {
469	>	fputc(' ', stdout);
470	>	fputword(fa.sarg[i], stdout);
471	>	}
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]);
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]);
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);
487	>	freefargs(&fa);
488		return(0);
489		}
490
491
492	<	addxform(fin) /* add xf arguments to strings */
493	<	FILE *fin;
492	>	int
493	>	addxform( /* add xf arguments to strings */
494	>	FILE *fin
495	>	)
496		{
497	<	register int i;
498	<	register FUNARGS *fa;
497	>	int i;
498	>	int resetarr = 0;
499	>	FUNARGS fa;
500
501	<	if ((fa = getfargs(fin)) == NULL)
501	>	if (readfargs(&fa, fin) != 1)
502		return(-1);
503		/* string arguments */
504	<	printf("%d", fa->nsargs + xac-xfa);
505	<	for (i = 0; i < fa->nsargs; i++)
506	<	printf(" %s", fa->sarg[i]);
504	>	if (xac > xfa && strcmp(xav[xfa], "-i"))
505	>	resetarr = 2;
506	>	printf("%d", fa.nsargs + resetarr + xac-xfa);
507	>	for (i = 0; i < fa.nsargs; i++) {
508	>	fputc(' ', stdout);
509	>	fputword(fa.sarg[i], stdout);
510	>	}
511	>	if (resetarr)
512	>	printf(" -i 1");
513		for (i = xfa; i < xac; i++) /* add xf arguments */
514		printf(" %s", xav[i]);
515		printf("\n");
516	+	#ifdef IARGS
517		/* integer arguments */
518	<	printf("%d", fa->niargs);
519	<	for (i = 0; i < fa->niargs; i++)
520	<	printf(" %d", fa->iarg[i]);
518	>	printf("%d", fa.niargs);
519	>	for (i = 0; i < fa.niargs; i++)
520	>	printf(" %d", fa.iarg[i]);
521		printf("\n");
522	+	#else
523	+	printf("0\n");
524	+	#endif
525		/* float arguments */
526	<	printf("%d", fa->nfargs);
527	<	for (i = 0; i < fa->nfargs; i++)
528	<	printf(" %18.12g", fa->farg[i]);
526	>	printf("%d", fa.nfargs);
527	>	for (i = 0; i < fa.nfargs; i++)
528	>	printf(" %18.12g", fa.farg[i]);
529		printf("\n");
530	<	freefargs(fa);
530	>	freefargs(&fa);
531		return(0);
532		}
533
534
535		int
536	<	otype(ofname) /* get object function number from its name */
537	<	register char *ofname;
536	>	alias( /* transfer alias */
537	>	FILE *fin
538	>	)
539		{
540	<	register int i;
540	>	char aliasnm[MAXSTR];
541
542	<	for (i = 0; ofun[i].funame != NULL; i++)
367	<	if (!strcmp(ofun[i].funame, ofname))
368	<	return(i);
369	<
370	<	return(-1); /* not found */
371	<	}
372	<
373	<
374	<	alias(fin) /* transfer alias */
375	<	FILE *fin;
376	<	{
377	<	char alias[MAXSTR];
378	<
379	<	if (fscanf(fin, "%s", alias) != 1)
542	>	if (fgetword(aliasnm, MAXSTR, fin) == NULL)
543		return(-1);
544	<	printf("\t%s\n", alias);
544	>	printf("\t%s\n", aliasnm);
545		return(0);
546		}
547
548
549	<	m_glow(fin) /* transform arguments for proximity light */
550	<	FILE *fin;
549	>	int
550	>	m_glow( /* transform arguments for proximity light */
551	>	FILE *fin
552	>	)
553		{
554	<	register FUNARGS *fa;
554	>	FUNARGS fa;
555
556	<	if ((fa = getfargs(fin)) == NULL)
556	>	if (readfargs(&fa, fin) != 1)
557		return(-1);
558	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
558	>	if ((fa.nsargs != 0) \| (fa.nfargs != 4))
559		return(-1);
560		printf("0\n0\n4");
561		printf(" %18.12g %18.12g %18.12g",
562	<	fa->farg[0], fa->farg[1], fa->farg[2]);
563	<	printf(" %18.12g\n", fa->farg[3] * totscale);
564	<	freefargs(fa);
562	>	fa.farg[0], fa.farg[1], fa.farg[2]);
563	>	printf(" %18.12g\n", fa.farg[3] * tot.sca);
564	>	freefargs(&fa);
565		return(0);
566		}
567
568
569	<	m_spot(fin) /* transform arguments for spotlight */
570	<	FILE *fin;
569	>	int
570	>	m_spot( /* transform arguments for spotlight */
571	>	FILE *fin
572	>	)
573		{
574	<	double v[3];
575	<	register FUNARGS *fa;
574	>	FVECT v;
575	>	FUNARGS fa;
576
577	<	if ((fa = getfargs(fin)) == NULL)
577	>	if (readfargs(&fa, fin) != 1)
578		return(-1);
579	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 7)
579	>	if ((fa.nsargs != 0) \| ( fa.nfargs != 7))
580		return(-1);
581		printf("0\n0\n7");
582		printf(" %18.12g %18.12g %18.12g %18.12g\n",
583	<	fa->farg[0], fa->farg[1], fa->farg[2], fa->farg[3]);
584	<	multv3(v, fa->farg+4, totxform);
583	>	fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]);
584	>	multv3(v, fa.farg+4, tot.xfm);
585		printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
586	<	freefargs(fa);
586	>	freefargs(&fa);
587		return(0);
588		}
589
590
591	<	m_dielectric(fin) /* transform arguments for dielectric */
592	<	FILE *fin;
591	>	int
592	>	m_mist( /* transform arguments for mist */
593	>	FILE *fin
594	>	)
595		{
596	<	double pow();
597	<	register FUNARGS *fa;
596	>	FUNARGS fa;
597	>	int i;
598
599	<	if ((fa = getfargs(fin)) == NULL)
599	>	if (readfargs(&fa, fin) != 1)
600		return(-1);
601	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 5)
601	>	if (fa.nfargs > 7)
602		return(-1);
603	+	printf("%d", fa.nsargs);
604	+	if (idprefix == NULL)
605	+	for (i = 0; i < fa.nsargs; i++)
606	+	printf(" %s", fa.sarg[i]);
607	+	else
608	+	for (i = 0; i < fa.nsargs; i++) {
609	+	char sname[256], *sp;
610	+	char cp1, cp2 = sname;
611	+	/* add idprefix */
612	+	for (sp = fa.sarg[i]; *sp; sp = cp1) {
613	+	for (cp1 = idprefix; *cp1; )
614	+	cp2++ = cp1++;
615	+	*cp2++ = '.';
616	+	for (cp1 = sp; *cp1 &&
617	+	(cp2++ = cp1++) != '>'; )
618	+	;
619	+	}
620	+	*cp2 = '\0';
621	+	printf(" %s", sname);
622	+	}
623	+	printf("\n0\n%d", fa.nfargs);
624	+	if (fa.nfargs > 2)
625	+	printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca,
626	+	fa.farg[1]/tot.sca, fa.farg[2]/tot.sca);
627	+	for (i = 3; i < fa.nfargs; i++)
628	+	printf(" %12.6g", fa.farg[i]);
629	+	printf("\n");
630	+	freefargs(&fa);
631	+	return(0);
632	+	}
633	+
634	+
635	+	int
636	+	m_dielectric( /* transform arguments for dielectric */
637	+	FILE *fin
638	+	)
639	+	{
640	+	FUNARGS fa;
641	+
642	+	if (readfargs(&fa, fin) != 1)
643	+	return(-1);
644	+	if (fa.nsargs != 0 \|\| fa.nfargs != 5)
645	+	return(-1);
646		printf("0\n0\n5");
647	<	printf(" %18.12g %18.12g %18.12g",
648	<	pow(fa->farg[0], 1.0/totscale),
649	<	pow(fa->farg[1], 1.0/totscale),
650	<	pow(fa->farg[2], 1.0/totscale));
651	<	printf(" %18.12g %18.12g\n", fa->farg[3], fa->farg[4]);
652	<	freefargs(fa);
647	>	printf(" %12.6g %12.6g %12.6g",
648	>	pow(fa.farg[0], 1.0/tot.sca),
649	>	pow(fa.farg[1], 1.0/tot.sca),
650	>	pow(fa.farg[2], 1.0/tot.sca));
651	>	printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]);
652	>	freefargs(&fa);
653		return(0);
654		}
655
656
657	<	m_interface(fin) /* transform arguments for interface */
658	<	FILE *fin;
657	>	int
658	>	m_interface( /* transform arguments for interface */
659	>	FILE *fin
660	>	)
661		{
662	<	double pow();
449	<	register FUNARGS *fa;
662	>	FUNARGS fa;
663
664	<	if ((fa = getfargs(fin)) == NULL)
664	>	if (readfargs(&fa, fin) != 1)
665		return(-1);
666	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
666	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
667		return(-1);
668		printf("0\n0\n8\n");
669	<	printf("%18.12g %18.12g %18.12g",
670	<	pow(fa->farg[0], 1.0/totscale),
671	<	pow(fa->farg[1], 1.0/totscale),
672	<	pow(fa->farg[2], 1.0/totscale));
673	<	printf(" %18.12g\n", fa->farg[3]);
674	<	printf("%18.12g %18.12g %18.12g",
675	<	pow(fa->farg[4], 1.0/totscale),
676	<	pow(fa->farg[5], 1.0/totscale),
677	<	pow(fa->farg[6], 1.0/totscale));
678	<	printf(" %18.12g\n", fa->farg[7]);
679	<	freefargs(fa);
669	>	printf("%12.6g %12.6g %12.6g",
670	>	pow(fa.farg[0], 1.0/tot.sca),
671	>	pow(fa.farg[1], 1.0/tot.sca),
672	>	pow(fa.farg[2], 1.0/tot.sca));
673	>	printf(" %12.6g\n", fa.farg[3]);
674	>	printf("%12.6g %12.6g %12.6g",
675	>	pow(fa.farg[4], 1.0/tot.sca),
676	>	pow(fa.farg[5], 1.0/tot.sca),
677	>	pow(fa.farg[6], 1.0/tot.sca));
678	>	printf(" %12.6g\n", fa.farg[7]);
679	>	freefargs(&fa);
680		return(0);
681		}
682
683
684	<	text(fin) /* transform text arguments */
685	<	FILE *fin;
684	>	int
685	>	text( /* transform text arguments */
686	>	FILE *fin
687	>	)
688		{
689		int i;
690	<	double v[3];
691	<	register FUNARGS *fa;
690	>	FVECT v;
691	>	FUNARGS fa;
692
693	<	if ((fa = getfargs(fin)) == NULL)
693	>	if (readfargs(&fa, fin) != 1)
694		return(-1);
695	<	if (fa->niargs != 0 \|\| (fa->nfargs != 9 &&
481	<	fa->nfargs != 11 && fa->nfargs != 15))
695	>	if (fa.nfargs < 9)
696		return(-1);
697		/* string arguments */
698	<	printf("%d", fa->nsargs);
699	<	for (i = 0; i < fa->nsargs; i++)
700	<	printf(" %s", fa->sarg[i]);
701	<	printf("\n0\n%d\n", fa->nfargs);
698	>	printf("%d", fa.nsargs);
699	>	for (i = 0; i < fa.nsargs; i++) {
700	>	fputc(' ', stdout);
701	>	fputword(fa.sarg[i], stdout);
702	>	}
703	>	printf("\n0\n%d\n", fa.nfargs);
704		/* anchor point */
705	<	multp3(v, fa->farg, totxform);
705	>	multp3(v, fa.farg, tot.xfm);
706		printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
707		/* right vector */
708	<	multv3(v, fa->farg+3, totxform);
708	>	multv3(v, fa.farg+3, tot.xfm);
709		printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
710		/* down vector */
711	<	multv3(v, fa->farg+6, totxform);
712	<	printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]);
713	<	/* forground and background */
714	<	if (fa->nfargs == 11)
715	<	printf(" %18.12g %18.12g\n", fa->farg[9], fa->farg[10]);
716	<	else if (fa->nfargs == 15) {
717	<	printf(" %18.12g %18.12g %18.12g\n",
502	<	fa->farg[9], fa->farg[10], fa->farg[11]);
503	<	printf(" %18.12g %18.12g %18.12g\n",
504	<	fa->farg[12], fa->farg[13], fa->farg[14]);
711	>	multv3(v, fa.farg+6, tot.xfm);
712	>	printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]);
713	>	/* remaining arguments */
714	>	for (i = 9; i < fa.nfargs; i++) {
715	>	if (i%3 == 0)
716	>	putchar('\n');
717	>	printf(" %18.12g", fa.farg[i]);
718		}
719	<	freefargs(fa);
719	>	putchar('\n');
720	>	freefargs(&fa);
721		return(0);
722		}
723
724
725	<	o_source(fin) /* transform source arguments */
726	<	FILE *fin;
725	>	int
726	>	o_source( /* transform source arguments */
727	>	FILE *fin
728	>	)
729		{
730	<	double dv[3];
731	<	register FUNARGS *fa;
730	>	FVECT dv;
731	>	FUNARGS fa;
732
733	<	if ((fa = getfargs(fin)) == NULL)
733	>	if (readfargs(&fa, fin) != 1)
734		return(-1);
735	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
735	>	if (fa.nsargs != 0 \|\| fa.nfargs != 4)
736		return(-1);
737		/* transform direction vector */
738	<	multv3(dv, fa->farg, totxform);
738	>	multv3(dv, fa.farg, tot.xfm);
739		/* output */
740		printf("0\n0\n4");
741		printf(" %18.12g %18.12g %18.12g %18.12g\n",
742	<	dv[0], dv[1], dv[2], fa->farg[3]);
743	<	freefargs(fa);
742	>	dv[0], dv[1], dv[2], fa.farg[3]);
743	>	freefargs(&fa);
744		return(0);
745		}
746
747
748	<	o_sphere(fin) /* transform sphere arguments */
749	<	FILE *fin;
748	>	int
749	>	o_sphere( /* transform sphere arguments */
750	>	FILE *fin
751	>	)
752		{
753	<	double cent[3], rad;
754	<	register FUNARGS *fa;
753	>	FVECT cent;
754	>	double rad;
755	>	FUNARGS fa;
756
757	<	if ((fa = getfargs(fin)) == NULL)
757	>	if (readfargs(&fa, fin) != 1)
758		return(-1);
759	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 4)
759	>	if (fa.nsargs != 0 \|\| fa.nfargs != 4)
760		return(-1);
761
762	<	multp3(cent, fa->farg, totxform); /* transform center */
762	>	multp3(cent, fa.farg, tot.xfm); /* transform center */
763
764	<	rad = fa->farg[3] * totscale; /* scale radius */
764	>	rad = fa.farg[3] * tot.sca; /* scale radius */
765
766		printf("0\n0\n4");
767		printf(" %18.12g %18.12g %18.12g %18.12g\n",
768		cent[0], cent[1], cent[2], rad);
769	<	freefargs(fa);
769	>	freefargs(&fa);
770		return(0);
771		}
772
773
774	<	o_face(fin) /* transform face arguments */
775	<	FILE *fin;
774	>	int
775	>	o_face( /* transform face arguments */
776	>	FILE *fin
777	>	)
778		{
779	<	double p[3];
780	<	register int i;
781	<	register FUNARGS *fa;
779	>	FVECT p;
780	>	int i;
781	>	FUNARGS fa;
782
783	<	if ((fa = getfargs(fin)) == NULL)
783	>	if (readfargs(&fa, fin) != 1)
784		return(-1);
785	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs % 3)
785	>	if (fa.nsargs != 0 \|\| fa.nfargs % 3)
786		return(-1);
787
788	<	printf("0\n0\n%d\n", fa->nfargs);
788	>	printf("0\n0\n%d\n", fa.nfargs);
789
790	<	for (i = 0; i < fa->nfargs; i += 3) {
790	>	for (i = 0; i < fa.nfargs; i += 3) {
791		if (reverse)
792	<	multp3(p, fa->farg+(fa->nfargs-i-3), totxform);
792	>	multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm);
793		else
794	<	multp3(p, fa->farg+i, totxform);
794	>	multp3(p, fa.farg+i, tot.xfm);
795		printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]);
796		}
797	<	freefargs(fa);
797	>	freefargs(&fa);
798		return(0);
799		}
800
801
802	<	o_cone(fin) /* transform cone and cup arguments */
803	<	FILE *fin;
802	>	int
803	>	o_cone( /* transform cone and cup arguments */
804	>	FILE *fin
805	>	)
806		{
807	<	double p0[3], p1[3], r0, r1;
808	<	register FUNARGS *fa;
807	>	FVECT p0, p1;
808	>	double r0, r1;
809	>	FUNARGS fa;
810
811	<	if ((fa = getfargs(fin)) == NULL)
811	>	if (readfargs(&fa, fin) != 1)
812		return(-1);
813	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
813	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
814		return(-1);
815
816		printf("0\n0\n8\n");
817
818	<	multp3(p0, fa->farg, totxform);
819	<	multp3(p1, fa->farg+3, totxform);
820	<	r0 = fa->farg[6] * totscale;
821	<	r1 = fa->farg[7] * totscale;
818	>	multp3(p0, fa.farg, tot.xfm);
819	>	multp3(p1, fa.farg+3, tot.xfm);
820	>	r0 = fa.farg[6] * tot.sca;
821	>	r1 = fa.farg[7] * tot.sca;
822		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
823		printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]);
824		printf(" %18.12g %18.12g\n", r0, r1);
825
826	<	freefargs(fa);
826	>	freefargs(&fa);
827		return(0);
828		}
829
830
831	<	o_cylinder(fin) /* transform cylinder and tube arguments */
832	<	FILE *fin;
831	>	int
832	>	o_cylinder( /* transform cylinder and tube arguments */
833	>	FILE *fin
834	>	)
835		{
836	<	double p0[3], p1[3], rad;
837	<	register FUNARGS *fa;
836	>	FVECT p0, p1;
837	>	double rad;
838	>	FUNARGS fa;
839
840	<	if ((fa = getfargs(fin)) == NULL)
840	>	if (readfargs(&fa, fin) != 1)
841		return(-1);
842	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 7)
842	>	if (fa.nsargs != 0 \|\| fa.nfargs != 7)
843		return(-1);
844
845		printf("0\n0\n7\n");
846
847	<	multp3(p0, fa->farg, totxform);
848	<	multp3(p1, fa->farg+3, totxform);
849	<	rad = fa->farg[6] * totscale;
847	>	multp3(p0, fa.farg, tot.xfm);
848	>	multp3(p1, fa.farg+3, tot.xfm);
849	>	rad = fa.farg[6] * tot.sca;
850		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
851		printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]);
852		printf(" %18.12g\n", rad);
853	<	freefargs(fa);
853	>	freefargs(&fa);
854		return(0);
855		}
856
857
858	<	o_ring(fin) /* transform ring arguments */
859	<	FILE *fin;
858	>	int
859	>	o_ring( /* transform ring arguments */
860	>	FILE *fin
861	>	)
862		{
863	<	double p0[3], pd[3], r0, r1;
864	<	register FUNARGS *fa;
863	>	FVECT p0, pd;
864	>	double r0, r1;
865	>	FUNARGS fa;
866
867	<	if ((fa = getfargs(fin)) == NULL)
867	>	if (readfargs(&fa, fin) != 1)
868		return(-1);
869	<	if (fa->nsargs != 0 \|\| fa->niargs != 0 \|\| fa->nfargs != 8)
869	>	if (fa.nsargs != 0 \|\| fa.nfargs != 8)
870		return(-1);
871
872		printf("0\n0\n8\n");
873
874	<	multp3(p0, fa->farg, totxform);
875	<	multv3(pd, fa->farg+3, totxform);
876	<	r0 = fa->farg[6] * totscale;
877	<	r1 = fa->farg[7] * totscale;
874	>	multp3(p0, fa.farg, tot.xfm);
875	>	multv3(pd, fa.farg+3, tot.xfm);
876	>	if (invert) {
877	>	pd[0] = -pd[0];
878	>	pd[1] = -pd[1];
879	>	pd[2] = -pd[2];
880	>	}
881	>	r0 = fa.farg[6] * tot.sca;
882	>	r1 = fa.farg[7] * tot.sca;
883		printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]);
884		printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]);
885		printf(" %18.12g %18.12g\n", r0, r1);
886	<	freefargs(fa);
886	>	freefargs(&fa);
887		return(0);
888		}
889
890
891	<	FUNARGS *
892	<	getfargs(fp) /* get function arguments from stream */
658	<	FILE *fp;
891	>	void
892	>	initotypes(void) /* initialize ofun[] array */
893		{
894	<	char *strcpy();
661	<	char sbuf[MAXSTR];
662	<	int n;
663	<	register FUNARGS *fa;
664	<	register int i;
894	>	int i;
895
896	<	if ((fa = (FUNARGS *)malloc((unsigned)sizeof(FUNARGS))) == NULL)
897	<	goto memerr;
898	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
899	<	return(NULL);
900	<	if (fa->nsargs = n) {
901	<	fa->sarg = (char *)malloc((unsigned)fa->nsargssizeof(char *));
902	<	if (fa->sarg == NULL)
903	<	goto memerr;
904	<	for (i = 0; i < fa->nsargs; i++) {
905	<	if (fscanf(fp, "%s", sbuf) != 1)
906	<	return(NULL);
907	<	if ((fa->sarg[i] = malloc((unsigned)strlen(sbuf)+1)) == NULL)
908	<	goto memerr;
909	<	strcpy(fa->sarg[i], sbuf);
910	<	}
911	<	} else
912	<	fa->sarg = NULL;
913	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
914	<	return(NULL);
915	<	if (fa->niargs = n) {
916	<	fa->iarg = (int )malloc((unsigned)fa->niargssizeof(int));
917	<	if (fa->iarg == NULL)
918	<	goto memerr;
919	<	for (i = 0; i < fa->niargs; i++)
920	<	if (fscanf(fp, "%d", &fa->iarg[i]) != 1)
921	<	return(NULL);
922	<	} else
923	<	fa->iarg = NULL;
924	<	if (fscanf(fp, "%d", &n) != 1 \|\| n < 0)
925	<	return(NULL);
926	<	if (fa->nfargs = n) {
927	<	fa->farg = (double )malloc((unsigned)fa->nfargssizeof(double));
928	<	if (fa->farg == NULL)
929	<	goto memerr;
930	<	for (i = 0; i < fa->nfargs; i++)
931	<	if (fscanf(fp, "%lf", &fa->farg[i]) != 1)
932	<	return(NULL);
933	<	} else
934	<	fa->farg = NULL;
705	<	return(fa);
706	<	memerr:
707	<	fprintf(stderr, "%s: out of memory in getfargs\n", progname);
708	<	exit(1);
896	>	if (ofun[OBJ_SOURCE].funp == o_source)
897	>	return; /* done already */
898	>	/* functions get new transform */
899	>	for (i = 0; i < NUMOTYPE; i++)
900	>	if (hasfunc(i))
901	>	ofun[i].funp = addxform;
902	>	/* special cases */
903	>	ofun[OBJ_SOURCE].funp = o_source;
904	>	ofun[OBJ_SPHERE].funp =
905	>	ofun[OBJ_BUBBLE].funp = o_sphere;
906	>	ofun[OBJ_FACE].funp = o_face;
907	>	ofun[OBJ_CONE].funp =
908	>	ofun[OBJ_CUP].funp = o_cone;
909	>	ofun[OBJ_CYLINDER].funp =
910	>	ofun[OBJ_TUBE].funp = o_cylinder;
911	>	ofun[OBJ_RING].funp = o_ring;
912	>	ofun[OBJ_INSTANCE].funp =
913	>	ofun[OBJ_MESH].funp = addxform;
914	>	ofun[MAT_GLOW].funp = m_glow;
915	>	ofun[MAT_SPOT].funp = m_spot;
916	>	ofun[MAT_DIELECTRIC].funp = m_dielectric;
917	>	ofun[MAT_INTERFACE].funp = m_interface;
918	>	ofun[MAT_MIST].funp = m_mist;
919	>	ofun[PAT_CTEXT].funp =
920	>	ofun[PAT_BTEXT].funp =
921	>	ofun[MIX_TEXT].funp = text;
922	>	ofun[MOD_ALIAS].funp = alias;
923	>	/* surface inverses */
924	>	tinvers[OBJ_FACE] = OBJ_FACE;
925	>	tinvers[OBJ_SOURCE] = OBJ_SOURCE;
926	>	tinvers[OBJ_CONE] = OBJ_CUP;
927	>	tinvers[OBJ_CUP] = OBJ_CONE;
928	>	tinvers[OBJ_SPHERE] = OBJ_BUBBLE;
929	>	tinvers[OBJ_BUBBLE] = OBJ_SPHERE;
930	>	tinvers[OBJ_RING] = OBJ_RING;
931	>	tinvers[OBJ_CYLINDER] = OBJ_TUBE;
932	>	tinvers[OBJ_TUBE] = OBJ_CYLINDER;
933	>	tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */
934	>	tinvers[OBJ_MESH] = OBJ_MESH; /* ditto */
935		}
936
937
938	<	freefargs(fa) /* free memory associated with fa */
939	<	register FUNARGS *fa;
938	>	#ifdef OLDXFORM
939	>	void
940	>	openmain(
941	>	char *fname
942	>	)
943		{
944	<	register int i;
944	>	if (fname == NULL) {
945	>	strcpy(mainfn, "standard input");
946	>	mainfp = stdin;
947	>	return;
948	>	}
949	>	if (mainfp != NULL) {
950	>	if (!strcmp(fname, mainfn)) {
951	>	rewind(mainfp);
952	>	return;
953	>	}
954	>	fclose(mainfp);
955	>	}
956	>	if ((mainfp = fopen(fname, "r")) == NULL) {
957	>	fprintf(stderr, "%s: cannot open file \"%s\"\n",
958	>	progname, fname);
959	>	exit(1);
960	>	}
961	>	strcpy(mainfn, fname);
962	>	}
963	>	#else
964	>	void
965	>	openmain( /* open input, changing directory for file */
966	>	char *iname
967	>	)
968	>	{
969	>	static char origdir[PATH_MAX];
970	>	static char curfn[PATH_MAX];
971	>	static int diffdir;
972	>	char *fpath;
973
974	<	for (i = 0; i < fa->nsargs; i++)
975	<	free(fa->sarg[i]);
976	<	if (fa->nsargs)
977	<	free(fa->sarg);
978	<	if (fa->niargs)
979	<	free(fa->iarg);
980	<	if (fa->nfargs)
981	<	free(fa->farg);
982	<	free(fa);
974	>	if (iname == NULL) { /* standard input */
975	>	if (mainfp == NULL) {
976	>	int c;
977	>	strcpy(mainfn, "standard input");
978	>	if (nrept <= 1) {
979	>	mainfp = stdin;
980	>	return; /* just read once */
981	>	}
982	>	/* else copy */
983	>	if ((mainfp = tmpfile()) == NULL) {
984	>	fprintf(stderr,
985	>	"%s: cannot create temporary file\n",
986	>	progname);
987	>	exit(1);
988	>	}
989	>	while ((c = getc(stdin)) != EOF)
990	>	putc(c, mainfp);
991	>	}
992	>	rewind(mainfp); /* rewind copy */
993	>	return;
994	>	}
995	>	if (mainfp == NULL) { /* first call, initialize */
996	>	getcwd(origdir, sizeof(origdir));
997	>	} else if (!strcmp(iname, curfn)) { /* just need to rewind? */
998	>	rewind(mainfp);
999	>	return;
1000	>	} else { /* else close old stream */
1001	>	fclose(mainfp);
1002	>	mainfp = NULL;
1003	>	if (diffdir) { /* return to our directory */
1004	>	chdir(origdir);
1005	>	diffdir = 0;
1006	>	}
1007	>	}
1008	>	strcpy(curfn, iname); /* remember input name */
1009	>	/* get full path for file */
1010	>	if ((fpath = getpath(iname, getrlibpath(), R_OK)) == NULL) {
1011	>	fprintf(stderr, "%s: cannot find file \"%s\"\n",
1012	>	progname, iname);
1013	>	exit(1);
1014	>	}
1015	>	if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */
1016	>	fpath += 2;
1017	>	/* record path name */
1018	>	strcpy(mainfn, fpath);
1019	>	if (expand) { /* change to local directory */
1020	>	char cp = fpath + strlen(fpath); / get dir. */
1021	>	while (cp > fpath) {
1022	>	cp--;
1023	>	if (ISDIRSEP(*cp)) {
1024	>	if (cp == fpath)
1025	>	cp++; /* root special case */
1026	>	break;
1027	>	}
1028	>	}
1029	>	*cp = '\0';
1030	>	if (fpath[0]) { /* change to new directory? */
1031	>	if (chdir(fpath) < 0) {
1032	>	fprintf(stderr,
1033	>	"%s: cannot change directory to \"%s\"\n",
1034	>	progname, fpath);
1035	>	exit(1);
1036	>	}
1037	>	diffdir++;
1038	>	}
1039	>	/* get final path component */
1040	>	for (fpath = iname+strlen(iname);
1041	>	fpath > iname && !ISDIRSEP(fpath[-1]); fpath--)
1042	>	;
1043	>	}
1044	>	/* finally, open the file */
1045	>	if ((mainfp = fopen(fpath, "r")) == NULL) {
1046	>	fprintf(stderr, "%s: cannot open file \"%s\"\n",
1047	>	progname, mainfn);
1048	>	exit(1);
1049	>	}
1050		}
1051	+	#endif

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Comparing ray/src/gen/xform.c (file contents): Revision 1.9 by greg, Fri Oct 13 19:34:17 1989 UTC vs. Revision 2.54 by greg, Sat Jun 7 05:09:45 2025 UTC

Diff Legend

Comparing ray/src/gen/xform.c (file contents):
Revision 1.9 by greg, Fri Oct 13 19:34:17 1989 UTC vs.
Revision 2.54 by greg, Sat Jun 7 05:09:45 2025 UTC