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#include "cvmesh.h" |
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#include <ctype.h> |
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|
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FVECT *vlist; /* our vertex list */ |
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int nvs; /* number of vertices in our list */ |
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FVECT *vnlist; /* vertex normal list */ |
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int nvns; |
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FLOAT (*vtlist)[2]; /* map vertex list */ |
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int nvts; |
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|
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typedef int VNDX[3]; /* vertex index (point,map,normal) */ |
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|
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#define CHUNKSIZ 1024 /* vertex allocation chunk size */ |
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|
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#define MAXARG 64 /* maximum # arguments in a statement */ |
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|
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char *inpfile; /* input file name */ |
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int lineno; /* current line number */ |
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int faceno; /* current face number */ |
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> |
static FVECT *vlist; /* our vertex list */ |
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> |
static int nvs; /* number of vertices in our list */ |
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> |
static FVECT *vnlist; /* vertex normal list */ |
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static int nvns; |
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static FLOAT (*vtlist)[2]; /* map vertex list */ |
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static int nvts; |
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|
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static char *inpfile; /* input file name */ |
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static int havemats; /* materials available? */ |
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static char material[64]; /* current material name */ |
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static char group[64]; /* current group name */ |
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static int lineno; /* current line number */ |
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static int faceno; /* current face number */ |
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|
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static int getstmt(); |
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static int cvtndx(); |
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static OBJECT getmod(); |
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static int putface(); |
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static int puttri(); |
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static void freeverts(); |
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static int newv(); |
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static int newvn(); |
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static int newvt(); |
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static void syntax(); |
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|
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|
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void |
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wfreadobj(objfn) /* read in .OBJ file and convert */ |
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char *objfn; |
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{ |
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sprintf(errmsg, "cannot open \"%s\"", inpfile); |
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error(USER, errmsg); |
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} |
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havemats = (nobjects > 0); |
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nstats = nunknown = 0; |
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material[0] = '\0'; |
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group[0] = '\0'; |
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lineno = 0; faceno = 0; |
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/* scan until EOF */ |
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while (argc = getstmt(argv, fp)) { |
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break; |
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} |
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break; |
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case 'u': |
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if (strcmp(argv[0], "usemtl") && |
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strcmp(argv[0], "usemap")) |
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case 'u': /* usemtl/usemap */ |
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if (!strcmp(argv[0], "usemap")) |
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break; |
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if (strcmp(argv[0], "usemtl")) |
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goto unknown; |
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if (argc > 1) |
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strcpy(material, argv[1]); |
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else |
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material[0] = '\0'; |
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break; |
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case 'o': /* object name */ |
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if (argv[0][1]) |
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goto unknown; |
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break; |
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case 'g': /* group name(s) */ |
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case 'g': /* group name */ |
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if (argv[0][1]) |
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goto unknown; |
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if (argc > 1) |
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strcpy(group, argv[1]); |
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else |
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group[0] = '\0'; |
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break; |
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case '#': /* comment */ |
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break; |
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} |
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|
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< |
int |
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static int |
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getstmt(av, fp) /* read the next statement from fp */ |
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register char *av[MAXARG]; |
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FILE *fp; |
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{ |
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< |
static char sbuf[MAXARG*10]; |
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> |
static char sbuf[MAXARG*16]; |
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register char *cp; |
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register int i; |
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} |
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|
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|
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static int |
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cvtndx(vi, vs) /* convert vertex string to index */ |
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register VNDX vi; |
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register char *vs; |
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} |
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|
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|
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static int |
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putface(ac, av) /* put out an N-sided polygon */ |
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int ac; |
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register char **av; |
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} |
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|
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|
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static OBJECT |
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getmod() /* get current modifier ID */ |
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{ |
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char *mnam; |
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OBJECT mod; |
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|
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if (!havemats) |
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return(OVOID); |
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if (!strcmp(material, VOIDID)) |
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return(OVOID); |
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if (material[0]) /* prefer usemtl statements */ |
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mnam = material; |
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else if (group[0]) /* else use group name */ |
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mnam = group; |
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else |
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return(OVOID); |
277 |
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mod = modifier(mnam); |
278 |
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if (mod == OVOID) { |
279 |
+ |
sprintf(errmsg, "%s: undefined modifier \"%s\"", |
280 |
+ |
inpfile, mnam); |
281 |
+ |
error(USER, errmsg); |
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+ |
} |
283 |
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return(mod); |
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} |
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+ |
|
286 |
+ |
|
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+ |
static int |
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puttri(v1, v2, v3) /* convert a triangle */ |
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char *v1, *v2, *v3; |
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{ |
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} else |
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v1n = v2n = v3n = NULL; |
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|
312 |
< |
return(cvtri(vlist[v1i[0]], vlist[v2i[0]], vlist[v3i[0]], |
312 |
> |
return(cvtri(getmod(), vlist[v1i[0]], vlist[v2i[0]], vlist[v3i[0]], |
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v1n, v2n, v3n, v1c, v2c, v3c) >= 0); |
314 |
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} |
315 |
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|
316 |
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|
317 |
+ |
static void |
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freeverts() /* free all vertices */ |
319 |
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{ |
320 |
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if (nvs) { |
332 |
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} |
333 |
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|
334 |
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|
335 |
< |
int |
335 |
> |
static int |
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newv(x, y, z) /* create a new vertex */ |
337 |
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double x, y, z; |
338 |
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{ |
353 |
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} |
354 |
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|
355 |
|
|
356 |
< |
int |
356 |
> |
static int |
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newvn(x, y, z) /* create a new vertex normal */ |
358 |
|
double x, y, z; |
359 |
|
{ |
376 |
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} |
377 |
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|
378 |
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|
379 |
< |
int |
379 |
> |
static int |
380 |
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newvt(x, y) /* create a new texture map vertex */ |
381 |
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double x, y; |
382 |
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{ |
396 |
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} |
397 |
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|
398 |
|
|
399 |
+ |
static void |
400 |
|
syntax(er) /* report syntax error and exit */ |
401 |
|
char *er; |
402 |
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{ |