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/* Copyright (c) 1996 Regents of the University of California */ |
2 |
|
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#ifndef lint |
4 |
static char SCCSid[] = "$SunId$ LBL"; |
5 |
#endif |
6 |
|
7 |
/* |
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* xform.c - program to transform object files. |
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* Transformations must preserve aspect ratio. |
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* |
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* 10/19/85 |
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* 11/6/86 Finally added error checking! |
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*/ |
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|
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#include "standard.h" |
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|
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#include "paths.h" |
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|
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#include <ctype.h> |
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|
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#include "object.h" |
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|
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#include "otypes.h" |
24 |
|
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int xac; /* global xform argument count */ |
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char **xav; /* global xform argument pointer */ |
27 |
int xfa; /* start of xf arguments */ |
28 |
|
29 |
XF tot; /* total transformation */ |
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int reverse; /* boolean true if scene mirrored */ |
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|
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int invert = 0; /* boolean true to invert surfaces */ |
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|
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int expand = 1; /* boolean true to expand commands */ |
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|
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char *newmod = NULL; /* new modifier for surfaces */ |
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|
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char *idprefix = NULL; /* prefix for object identifiers */ |
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|
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#define ALIAS NUMOTYPE /* put alias at end of array */ |
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|
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#define NUMTYPES (NUMOTYPE+1) /* total number of object types */ |
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|
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FUN ofun[NUMTYPES] = INIT_OTYPE; /* default types and actions */ |
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|
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short tinvers[NUMOTYPE]; /* inverse types for surfaces */ |
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|
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int nrept = 1; /* number of array repetitions */ |
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|
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extern char *malloc(), *fgetword(); |
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|
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char mainfn[MAXPATH]; /* main file name */ |
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FILE *mainfp = NULL; /* main file pointer */ |
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|
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#define progname (xav[0]) |
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|
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|
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main(argc, argv) /* get transform options and transform file */ |
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int argc; |
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char *argv[]; |
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{ |
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char *fname; |
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int a; |
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/* check for array */ |
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for (a = 1; a < argc; a++) |
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if (!strcmp(argv[a], "-a")) |
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return(doarray(argc, argv, a)); |
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|
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initotypes(); |
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|
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for (a = 1; a < argc; a++) { |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'm': |
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if (argv[a][2] || a+1 >= argc) |
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break; |
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newmod = argv[++a]; |
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continue; |
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case 'n': |
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if (argv[a][2] || a+1 >= argc) |
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break; |
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idprefix = argv[++a]; |
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continue; |
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case 'c': |
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if (argv[a][2]) |
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break; |
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expand = 0; |
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continue; |
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case 'e': |
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if (argv[a][2]) |
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break; |
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expand = 1; |
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continue; |
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case 'I': |
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if (argv[a][2]) |
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break; |
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invert = 1; |
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continue; |
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} |
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break; |
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} |
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|
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xav = argv; |
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xfa = a; |
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|
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a += xf(&tot, argc-a, argv+a); |
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|
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if (reverse = tot.sca < 0.0) |
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tot.sca = -tot.sca; |
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if (invert) |
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reverse = !reverse; |
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|
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if (a < argc && argv[a][0] == '-') { |
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fprintf(stderr, "%s: command line error at '%s'\n", |
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argv[0], argv[a]); |
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exit(1); |
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} |
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|
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xac = a; |
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/* simple header */ |
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putchar('#'); |
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for (a = 0; a < xac; a++) |
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printf(" %s", xav[a]); |
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putchar('\n'); |
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/* transform input */ |
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if (xac == argc) { |
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openmain(NULL); |
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xform(mainfn, mainfp); |
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} else |
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for (a = xac; a < argc; a++) { |
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openmain(argv[a]); |
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xform(mainfn, mainfp); |
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} |
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|
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return(0); |
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} |
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|
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|
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doarray(ac, av, ai) /* make array */ |
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char **av; |
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int ac, ai; |
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{ |
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char *newav[256], **avp; |
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char newid[128], repts[32]; |
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char *oldid = NULL; |
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int n, i, err; |
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|
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avp = newav+2; |
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avp[0] = av[0]; |
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for (i = 1; i < ac; i++) |
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if (!strcmp(av[i-1], "-n")) { |
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oldid = av[i]; |
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avp[i] = newid; |
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} else |
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avp[i] = av[i]; |
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avp[ai] = "-i"; |
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avp[ai+1] = repts; |
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avp[i] = NULL; |
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if (oldid == NULL) { |
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newav[0] = av[0]; |
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newav[1] = "-n"; |
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newav[2] = newid; |
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avp = newav; |
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ac += 2; |
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} |
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nrept *= n = atoi(av[ai+1]); |
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err = 0; |
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for (i = 0; i < n; i++) { |
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if (oldid == NULL) |
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sprintf(newid, "a%d", i); |
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else |
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sprintf(newid, "%s.%d", oldid, i); |
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sprintf(repts, "%d", i); |
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err |= main(ac, avp); |
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} |
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return(err); |
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} |
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|
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|
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xform(name, fin) /* transform stream by tot.xfm */ |
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char *name; |
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register FILE *fin; |
183 |
{ |
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int nobjs = 0; |
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register int c; |
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|
187 |
while ((c = getc(fin)) != EOF) { |
188 |
if (isspace(c)) /* blank */ |
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continue; |
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if (c == '#') { /* comment */ |
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putchar(c); |
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do { |
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if ((c = getc(fin)) == EOF) |
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return; |
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putchar(c); |
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} while (c != '\n'); |
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} else if (c == '!') { /* command */ |
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ungetc(c, fin); |
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xfcomm(name, fin); |
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nobjs++; |
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} else { /* object */ |
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ungetc(c, fin); |
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xfobject(name, fin); |
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nobjs++; |
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} |
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} |
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if (nobjs == 0) |
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fprintf(stderr, "%s: (%s): warning - empty file\n", |
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progname, name); |
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} |
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|
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|
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xfcomm(fname, fin) /* transform a command */ |
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char *fname; |
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FILE *fin; |
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{ |
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extern FILE *popen(); |
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extern char *fgetline(); |
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FILE *pin; |
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char buf[512]; |
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int i; |
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|
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fgetline(buf, sizeof(buf), fin); |
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if (expand) { |
225 |
if ((pin = popen(buf+1, "r")) == NULL) { |
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fprintf(stderr, "%s: (%s): cannot execute \"%s\"\n", |
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progname, fname, buf); |
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exit(1); |
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} |
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xform(buf, pin); |
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pclose(pin); |
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} else { |
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printf("\n%s", buf); |
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if (xac > 1) { |
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printf(" | %s", xav[0]); |
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for (i = 1; i < xac; i++) |
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printf(" %s", xav[i]); |
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} |
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putchar('\n'); |
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} |
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} |
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|
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|
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xfobject(fname, fin) /* transform an object */ |
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char *fname; |
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FILE *fin; |
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{ |
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extern char *strcpy(); |
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char typ[16], nam[MAXSTR]; |
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int fn; |
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/* modifier and type */ |
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strcpy(typ, "EOF"); |
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fgetword(nam, sizeof(nam), fin); |
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fgetword(typ, sizeof(typ), fin); |
255 |
if ((fn = otype(typ)) < 0) { |
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fprintf(stderr, "%s: (%s): unknown object type \"%s\"\n", |
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progname, fname, typ); |
258 |
exit(1); |
259 |
} |
260 |
if (ismodifier(fn)) |
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printf("\n%s %s ", nam, typ); |
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else |
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printf("\n%s %s ", newmod != NULL ? newmod : nam, |
264 |
invert ? ofun[tinvers[fn]].funame : typ); |
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/* object name */ |
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fgetword(nam, sizeof(nam), fin); |
267 |
if (idprefix == NULL || ismodifier(fn)) |
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printf("%s\n", nam); |
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else |
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printf("%s.%s\n", idprefix, nam); |
271 |
/* transform arguments */ |
272 |
if ((*ofun[fn].funp)(fin) < 0) { |
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fprintf(stderr, "%s: (%s): bad %s \"%s\"\n", |
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progname, fname, ofun[fn].funame, nam); |
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exit(1); |
276 |
} |
277 |
} |
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|
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|
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o_default(fin) /* pass on arguments unchanged */ |
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FILE *fin; |
282 |
{ |
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register int i; |
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FUNARGS fa; |
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|
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if (readfargs(&fa, fin) != 1) |
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return(-1); |
288 |
/* string arguments */ |
289 |
printf("%d", fa.nsargs); |
290 |
for (i = 0; i < fa.nsargs; i++) |
291 |
printf(" %s", fa.sarg[i]); |
292 |
printf("\n"); |
293 |
#ifdef IARGS |
294 |
/* integer arguments */ |
295 |
printf("%d", fa.niargs); |
296 |
for (i = 0; i < fa.niargs; i++) |
297 |
printf(" %d", fa.iarg[i]); |
298 |
printf("\n"); |
299 |
#else |
300 |
printf("0\n"); |
301 |
#endif |
302 |
/* float arguments */ |
303 |
printf("%d", fa.nfargs); |
304 |
for (i = 0; i < fa.nfargs; i++) |
305 |
printf(" %18.12g", fa.farg[i]); |
306 |
printf("\n"); |
307 |
freefargs(&fa); |
308 |
return(0); |
309 |
} |
310 |
|
311 |
|
312 |
addxform(fin) /* add xf arguments to strings */ |
313 |
FILE *fin; |
314 |
{ |
315 |
register int i; |
316 |
int resetarr = 0; |
317 |
FUNARGS fa; |
318 |
|
319 |
if (readfargs(&fa, fin) != 1) |
320 |
return(-1); |
321 |
/* string arguments */ |
322 |
if (xac > xfa && strcmp(xav[xfa], "-i")) |
323 |
resetarr = 2; |
324 |
printf("%d", fa.nsargs + resetarr + xac-xfa); |
325 |
for (i = 0; i < fa.nsargs; i++) |
326 |
printf(" %s", fa.sarg[i]); |
327 |
if (resetarr) |
328 |
printf(" -i 1"); |
329 |
for (i = xfa; i < xac; i++) /* add xf arguments */ |
330 |
printf(" %s", xav[i]); |
331 |
printf("\n"); |
332 |
#ifdef IARGS |
333 |
/* integer arguments */ |
334 |
printf("%d", fa.niargs); |
335 |
for (i = 0; i < fa.niargs; i++) |
336 |
printf(" %d", fa.iarg[i]); |
337 |
printf("\n"); |
338 |
#else |
339 |
printf("0\n"); |
340 |
#endif |
341 |
/* float arguments */ |
342 |
printf("%d", fa.nfargs); |
343 |
for (i = 0; i < fa.nfargs; i++) |
344 |
printf(" %18.12g", fa.farg[i]); |
345 |
printf("\n"); |
346 |
freefargs(&fa); |
347 |
return(0); |
348 |
} |
349 |
|
350 |
|
351 |
int |
352 |
otype(ofname) /* get object function number from its name */ |
353 |
register char *ofname; |
354 |
{ |
355 |
register int i; |
356 |
|
357 |
for (i = 0; i < NUMTYPES; i++) |
358 |
if (!strcmp(ofun[i].funame, ofname)) |
359 |
return(i); |
360 |
|
361 |
return(-1); /* not found */ |
362 |
} |
363 |
|
364 |
|
365 |
alias(fin) /* transfer alias */ |
366 |
FILE *fin; |
367 |
{ |
368 |
char aliasnm[MAXSTR]; |
369 |
|
370 |
if (fgetword(aliasnm, MAXSTR, fin) == NULL) |
371 |
return(-1); |
372 |
printf("\t%s\n", aliasnm); |
373 |
return(0); |
374 |
} |
375 |
|
376 |
|
377 |
m_glow(fin) /* transform arguments for proximity light */ |
378 |
FILE *fin; |
379 |
{ |
380 |
FUNARGS fa; |
381 |
|
382 |
if (readfargs(&fa, fin) != 1) |
383 |
return(-1); |
384 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
385 |
return(-1); |
386 |
printf("0\n0\n4"); |
387 |
printf(" %18.12g %18.12g %18.12g", |
388 |
fa.farg[0], fa.farg[1], fa.farg[2]); |
389 |
printf(" %18.12g\n", fa.farg[3] * tot.sca); |
390 |
freefargs(&fa); |
391 |
return(0); |
392 |
} |
393 |
|
394 |
|
395 |
m_spot(fin) /* transform arguments for spotlight */ |
396 |
FILE *fin; |
397 |
{ |
398 |
FVECT v; |
399 |
FUNARGS fa; |
400 |
|
401 |
if (readfargs(&fa, fin) != 1) |
402 |
return(-1); |
403 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
404 |
return(-1); |
405 |
printf("0\n0\n7"); |
406 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
407 |
fa.farg[0], fa.farg[1], fa.farg[2], fa.farg[3]); |
408 |
multv3(v, fa.farg+4, tot.xfm); |
409 |
printf("\t%18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
410 |
freefargs(&fa); |
411 |
return(0); |
412 |
} |
413 |
|
414 |
|
415 |
m_mist(fin) /* transform arguments for mist */ |
416 |
FILE *fin; |
417 |
{ |
418 |
FUNARGS fa; |
419 |
int i; |
420 |
|
421 |
if (readfargs(&fa, fin) != 1) |
422 |
return(-1); |
423 |
if (fa.nfargs > 7) |
424 |
return(-1); |
425 |
printf("%d", fa.nsargs); |
426 |
if (idprefix == NULL) |
427 |
for (i = 0; i < fa.nsargs; i++) |
428 |
printf(" %s", fa.sarg[i]); |
429 |
else |
430 |
for (i = 0; i < fa.nsargs; i++) { |
431 |
char sname[256], *sp; |
432 |
register char *cp1, *cp2 = sname; |
433 |
/* add idprefix */ |
434 |
for (sp = fa.sarg[i]; *sp; sp = cp1) { |
435 |
for (cp1 = idprefix; *cp1; ) |
436 |
*cp2++ = *cp1++; |
437 |
*cp2++ = '.'; |
438 |
for (cp1 = sp; *cp1 && |
439 |
(*cp2++ = *cp1++) != '>'; ) |
440 |
; |
441 |
} |
442 |
*cp2 = '\0'; |
443 |
printf(" %s", sname); |
444 |
} |
445 |
printf("\n0\n%d", fa.nfargs); |
446 |
if (fa.nfargs > 2) |
447 |
printf(" %12.6g %12.6g %12.6g", fa.farg[0]/tot.sca, |
448 |
fa.farg[1]/tot.sca, fa.farg[2]/tot.sca); |
449 |
for (i = 3; i < fa.nfargs; i++) |
450 |
printf(" %12.6g", fa.farg[i]); |
451 |
printf("\n"); |
452 |
freefargs(&fa); |
453 |
return(0); |
454 |
} |
455 |
|
456 |
|
457 |
m_dielectric(fin) /* transform arguments for dielectric */ |
458 |
FILE *fin; |
459 |
{ |
460 |
FUNARGS fa; |
461 |
|
462 |
if (readfargs(&fa, fin) != 1) |
463 |
return(-1); |
464 |
if (fa.nsargs != 0 || fa.nfargs != 5) |
465 |
return(-1); |
466 |
printf("0\n0\n5"); |
467 |
printf(" %12.6g %12.6g %12.6g", |
468 |
pow(fa.farg[0], 1.0/tot.sca), |
469 |
pow(fa.farg[1], 1.0/tot.sca), |
470 |
pow(fa.farg[2], 1.0/tot.sca)); |
471 |
printf(" %12.6g %12.6g\n", fa.farg[3], fa.farg[4]); |
472 |
freefargs(&fa); |
473 |
return(0); |
474 |
} |
475 |
|
476 |
|
477 |
m_interface(fin) /* transform arguments for interface */ |
478 |
FILE *fin; |
479 |
{ |
480 |
FUNARGS fa; |
481 |
|
482 |
if (readfargs(&fa, fin) != 1) |
483 |
return(-1); |
484 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
485 |
return(-1); |
486 |
printf("0\n0\n8\n"); |
487 |
printf("%12.6g %12.6g %12.6g", |
488 |
pow(fa.farg[0], 1.0/tot.sca), |
489 |
pow(fa.farg[1], 1.0/tot.sca), |
490 |
pow(fa.farg[2], 1.0/tot.sca)); |
491 |
printf(" %12.6g\n", fa.farg[3]); |
492 |
printf("%12.6g %12.6g %12.6g", |
493 |
pow(fa.farg[4], 1.0/tot.sca), |
494 |
pow(fa.farg[5], 1.0/tot.sca), |
495 |
pow(fa.farg[6], 1.0/tot.sca)); |
496 |
printf(" %12.6g\n", fa.farg[7]); |
497 |
freefargs(&fa); |
498 |
return(0); |
499 |
} |
500 |
|
501 |
|
502 |
text(fin) /* transform text arguments */ |
503 |
FILE *fin; |
504 |
{ |
505 |
int i; |
506 |
FVECT v; |
507 |
FUNARGS fa; |
508 |
|
509 |
if (readfargs(&fa, fin) != 1) |
510 |
return(-1); |
511 |
if (fa.nfargs < 9) |
512 |
return(-1); |
513 |
/* string arguments */ |
514 |
printf("%d", fa.nsargs); |
515 |
for (i = 0; i < fa.nsargs; i++) |
516 |
printf(" %s", fa.sarg[i]); |
517 |
printf("\n0\n%d\n", fa.nfargs); |
518 |
/* anchor point */ |
519 |
multp3(v, fa.farg, tot.xfm); |
520 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
521 |
/* right vector */ |
522 |
multv3(v, fa.farg+3, tot.xfm); |
523 |
printf(" %18.12g %18.12g %18.12g\n", v[0], v[1], v[2]); |
524 |
/* down vector */ |
525 |
multv3(v, fa.farg+6, tot.xfm); |
526 |
printf(" %18.12g %18.12g %18.12g", v[0], v[1], v[2]); |
527 |
/* remaining arguments */ |
528 |
for (i = 9; i < fa.nfargs; i++) { |
529 |
if (i%3 == 0) |
530 |
putchar('\n'); |
531 |
printf(" %18.12g", fa.farg[i]); |
532 |
} |
533 |
putchar('\n'); |
534 |
freefargs(&fa); |
535 |
return(0); |
536 |
} |
537 |
|
538 |
|
539 |
o_source(fin) /* transform source arguments */ |
540 |
FILE *fin; |
541 |
{ |
542 |
FVECT dv; |
543 |
FUNARGS fa; |
544 |
|
545 |
if (readfargs(&fa, fin) != 1) |
546 |
return(-1); |
547 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
548 |
return(-1); |
549 |
/* transform direction vector */ |
550 |
multv3(dv, fa.farg, tot.xfm); |
551 |
/* output */ |
552 |
printf("0\n0\n4"); |
553 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
554 |
dv[0], dv[1], dv[2], fa.farg[3]); |
555 |
freefargs(&fa); |
556 |
return(0); |
557 |
} |
558 |
|
559 |
|
560 |
o_sphere(fin) /* transform sphere arguments */ |
561 |
FILE *fin; |
562 |
{ |
563 |
FVECT cent; |
564 |
double rad; |
565 |
FUNARGS fa; |
566 |
|
567 |
if (readfargs(&fa, fin) != 1) |
568 |
return(-1); |
569 |
if (fa.nsargs != 0 || fa.nfargs != 4) |
570 |
return(-1); |
571 |
|
572 |
multp3(cent, fa.farg, tot.xfm); /* transform center */ |
573 |
|
574 |
rad = fa.farg[3] * tot.sca; /* scale radius */ |
575 |
|
576 |
printf("0\n0\n4"); |
577 |
printf(" %18.12g %18.12g %18.12g %18.12g\n", |
578 |
cent[0], cent[1], cent[2], rad); |
579 |
freefargs(&fa); |
580 |
return(0); |
581 |
} |
582 |
|
583 |
|
584 |
o_face(fin) /* transform face arguments */ |
585 |
FILE *fin; |
586 |
{ |
587 |
FVECT p; |
588 |
register int i; |
589 |
FUNARGS fa; |
590 |
|
591 |
if (readfargs(&fa, fin) != 1) |
592 |
return(-1); |
593 |
if (fa.nsargs != 0 || fa.nfargs % 3) |
594 |
return(-1); |
595 |
|
596 |
printf("0\n0\n%d\n", fa.nfargs); |
597 |
|
598 |
for (i = 0; i < fa.nfargs; i += 3) { |
599 |
if (reverse) |
600 |
multp3(p, fa.farg+(fa.nfargs-i-3), tot.xfm); |
601 |
else |
602 |
multp3(p, fa.farg+i, tot.xfm); |
603 |
printf(" %18.12g %18.12g %18.12g\n", p[0], p[1], p[2]); |
604 |
} |
605 |
freefargs(&fa); |
606 |
return(0); |
607 |
} |
608 |
|
609 |
|
610 |
o_cone(fin) /* transform cone and cup arguments */ |
611 |
FILE *fin; |
612 |
{ |
613 |
FVECT p0, p1; |
614 |
double r0, r1; |
615 |
FUNARGS fa; |
616 |
|
617 |
if (readfargs(&fa, fin) != 1) |
618 |
return(-1); |
619 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
620 |
return(-1); |
621 |
|
622 |
printf("0\n0\n8\n"); |
623 |
|
624 |
multp3(p0, fa.farg, tot.xfm); |
625 |
multp3(p1, fa.farg+3, tot.xfm); |
626 |
r0 = fa.farg[6] * tot.sca; |
627 |
r1 = fa.farg[7] * tot.sca; |
628 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
629 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
630 |
printf(" %18.12g %18.12g\n", r0, r1); |
631 |
|
632 |
freefargs(&fa); |
633 |
return(0); |
634 |
} |
635 |
|
636 |
|
637 |
o_cylinder(fin) /* transform cylinder and tube arguments */ |
638 |
FILE *fin; |
639 |
{ |
640 |
FVECT p0, p1; |
641 |
double rad; |
642 |
FUNARGS fa; |
643 |
|
644 |
if (readfargs(&fa, fin) != 1) |
645 |
return(-1); |
646 |
if (fa.nsargs != 0 || fa.nfargs != 7) |
647 |
return(-1); |
648 |
|
649 |
printf("0\n0\n7\n"); |
650 |
|
651 |
multp3(p0, fa.farg, tot.xfm); |
652 |
multp3(p1, fa.farg+3, tot.xfm); |
653 |
rad = fa.farg[6] * tot.sca; |
654 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
655 |
printf(" %18.12g %18.12g %18.12g\n", p1[0], p1[1], p1[2]); |
656 |
printf(" %18.12g\n", rad); |
657 |
freefargs(&fa); |
658 |
return(0); |
659 |
} |
660 |
|
661 |
|
662 |
o_ring(fin) /* transform ring arguments */ |
663 |
FILE *fin; |
664 |
{ |
665 |
FVECT p0, pd; |
666 |
double r0, r1; |
667 |
FUNARGS fa; |
668 |
|
669 |
if (readfargs(&fa, fin) != 1) |
670 |
return(-1); |
671 |
if (fa.nsargs != 0 || fa.nfargs != 8) |
672 |
return(-1); |
673 |
|
674 |
printf("0\n0\n8\n"); |
675 |
|
676 |
multp3(p0, fa.farg, tot.xfm); |
677 |
multv3(pd, fa.farg+3, tot.xfm); |
678 |
if (invert) { |
679 |
pd[0] = -pd[0]; |
680 |
pd[1] = -pd[1]; |
681 |
pd[2] = -pd[2]; |
682 |
} |
683 |
r0 = fa.farg[6] * tot.sca; |
684 |
r1 = fa.farg[7] * tot.sca; |
685 |
printf(" %18.12g %18.12g %18.12g\n", p0[0], p0[1], p0[2]); |
686 |
printf(" %18.12g %18.12g %18.12g\n", pd[0], pd[1], pd[2]); |
687 |
printf(" %18.12g %18.12g\n", r0, r1); |
688 |
freefargs(&fa); |
689 |
return(0); |
690 |
} |
691 |
|
692 |
|
693 |
initotypes() /* initialize ofun[] array */ |
694 |
{ |
695 |
register int i; |
696 |
|
697 |
if (ofun[OBJ_SOURCE].funp == o_source) |
698 |
return; /* done already */ |
699 |
/* alias is additional */ |
700 |
ofun[ALIAS].funame = ALIASID; |
701 |
ofun[ALIAS].flags = 0; |
702 |
/* functions get new transform */ |
703 |
for (i = 0; i < NUMTYPES; i++) |
704 |
if (hasfunc(i)) |
705 |
ofun[i].funp = addxform; |
706 |
/* special cases */ |
707 |
ofun[OBJ_SOURCE].funp = o_source; |
708 |
ofun[OBJ_SPHERE].funp = |
709 |
ofun[OBJ_BUBBLE].funp = o_sphere; |
710 |
ofun[OBJ_FACE].funp = o_face; |
711 |
ofun[OBJ_CONE].funp = |
712 |
ofun[OBJ_CUP].funp = o_cone; |
713 |
ofun[OBJ_CYLINDER].funp = |
714 |
ofun[OBJ_TUBE].funp = o_cylinder; |
715 |
ofun[OBJ_RING].funp = o_ring; |
716 |
ofun[OBJ_INSTANCE].funp = addxform; |
717 |
ofun[MAT_GLOW].funp = m_glow; |
718 |
ofun[MAT_SPOT].funp = m_spot; |
719 |
ofun[MAT_DIELECTRIC].funp = m_dielectric; |
720 |
ofun[MAT_INTERFACE].funp = m_interface; |
721 |
ofun[MAT_MIST].funp = m_mist; |
722 |
ofun[PAT_CTEXT].funp = |
723 |
ofun[PAT_BTEXT].funp = |
724 |
ofun[MIX_TEXT].funp = text; |
725 |
ofun[ALIAS].funp = alias; |
726 |
/* surface inverses */ |
727 |
tinvers[OBJ_FACE] = OBJ_FACE; |
728 |
tinvers[OBJ_SOURCE] = OBJ_SOURCE; |
729 |
tinvers[OBJ_CONE] = OBJ_CUP; |
730 |
tinvers[OBJ_CUP] = OBJ_CONE; |
731 |
tinvers[OBJ_SPHERE] = OBJ_BUBBLE; |
732 |
tinvers[OBJ_BUBBLE] = OBJ_SPHERE; |
733 |
tinvers[OBJ_RING] = OBJ_RING; |
734 |
tinvers[OBJ_CYLINDER] = OBJ_TUBE; |
735 |
tinvers[OBJ_TUBE] = OBJ_CYLINDER; |
736 |
tinvers[OBJ_INSTANCE] = OBJ_INSTANCE; /* oh, well */ |
737 |
} |
738 |
|
739 |
|
740 |
#ifdef OLDXFORM |
741 |
openmain(fname) |
742 |
char *fname; |
743 |
{ |
744 |
if (fname == NULL) { |
745 |
strcpy(mainfn, "standard input"); |
746 |
mainfp = stdin; |
747 |
return; |
748 |
} |
749 |
if (mainfp != NULL) { |
750 |
if (!strcmp(fname, mainfn)) { |
751 |
rewind(mainfp); |
752 |
return; |
753 |
} |
754 |
fclose(mainfp); |
755 |
} |
756 |
if ((mainfp = fopen(fname, "r")) == NULL) { |
757 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
758 |
progname, fname); |
759 |
exit(1); |
760 |
} |
761 |
strcpy(mainfn, fname); |
762 |
} |
763 |
#else |
764 |
openmain(fname) /* open fname for input, changing to its directory */ |
765 |
char *fname; |
766 |
{ |
767 |
extern FILE *tmpfile(); |
768 |
extern char *getlibpath(), *getpath(); |
769 |
static char origdir[MAXPATH]; |
770 |
static char curfn[MAXPATH]; |
771 |
static int diffdir; |
772 |
register char *fpath; |
773 |
|
774 |
if (fname == NULL) { /* standard input */ |
775 |
if (mainfp == NULL) { |
776 |
register int c; |
777 |
strcpy(mainfn, "standard input"); |
778 |
if (nrept <= 1) { |
779 |
mainfp = stdin; |
780 |
return; /* just read once */ |
781 |
} |
782 |
/* else copy */ |
783 |
if ((mainfp = tmpfile()) == NULL) { |
784 |
fprintf(stderr, |
785 |
"%s: cannot create temporary file\n", |
786 |
progname); |
787 |
exit(1); |
788 |
} |
789 |
while ((c = getc(stdin)) != EOF) |
790 |
putc(c, mainfp); |
791 |
fclose(stdin); |
792 |
} |
793 |
rewind(mainfp); /* rewind copy */ |
794 |
return; |
795 |
} |
796 |
if (mainfp == NULL) { /* first call, initialize */ |
797 |
getwd(origdir); |
798 |
} else if (!strcmp(fname, curfn)) { /* just need to rewind? */ |
799 |
rewind(mainfp); |
800 |
return; |
801 |
} else { /* else close old stream */ |
802 |
fclose(mainfp); |
803 |
if (diffdir) { |
804 |
chdir(origdir); |
805 |
diffdir = 0; |
806 |
} |
807 |
} |
808 |
strcpy(curfn, fname); /* remember file name */ |
809 |
/* get full path */ |
810 |
if ((fpath = getpath(fname, getlibpath(), R_OK)) == NULL) { |
811 |
fprintf(stderr, "%s: cannot find file \"%s\"\n", |
812 |
progname, fname); |
813 |
exit(1); |
814 |
} |
815 |
if (fpath[0] == '.' && ISDIRSEP(fpath[1])) /* remove leading ./ */ |
816 |
fpath += 2; |
817 |
/* record path name */ |
818 |
strcpy(mainfn, fpath); |
819 |
if (expand) { /* change to local directory */ |
820 |
register char *cp = fpath + strlen(fpath); /* get dir. */ |
821 |
while (cp > fpath) { |
822 |
cp--; |
823 |
if (ISDIRSEP(*cp)) { |
824 |
if (cp == fpath) |
825 |
cp++; /* root special case */ |
826 |
break; |
827 |
} |
828 |
} |
829 |
*cp = '\0'; |
830 |
if (fpath[0]) { /* change to new directory? */ |
831 |
if (chdir(fpath) < 0) { |
832 |
fprintf(stderr, |
833 |
"%s: cannot change directory to \"%s\"\n", |
834 |
progname, fpath); |
835 |
exit(1); |
836 |
} |
837 |
diffdir++; |
838 |
} |
839 |
/* get final path component */ |
840 |
for (fpath = fname+strlen(fname); |
841 |
fpath > fname && !ISDIRSEP(fpath[-1]); fpath--) |
842 |
; |
843 |
} |
844 |
/* open the file */ |
845 |
if ((mainfp = fopen(fpath, "r")) == NULL) { |
846 |
fprintf(stderr, "%s: cannot open file \"%s\"\n", |
847 |
progname, mainfn); |
848 |
exit(1); |
849 |
} |
850 |
} |
851 |
#endif |