15 |
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16 |
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#define CHUNKSIZ 1024 /* vertex allocation chunk size */ |
17 |
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18 |
< |
#define MAXARG 64 /* maximum # arguments in a statement */ |
18 |
> |
#define MAXARG 512 /* maximum # arguments in a statement */ |
19 |
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|
20 |
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static FVECT *vlist; /* our vertex list */ |
21 |
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static int nvs; /* number of vertices in our list */ |
22 |
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static FVECT *vnlist; /* vertex normal list */ |
23 |
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static int nvns; |
24 |
< |
static FLOAT (*vtlist)[2]; /* map vertex list */ |
24 |
> |
static RREAL (*vtlist)[2]; /* map vertex list */ |
25 |
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static int nvts; |
26 |
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|
27 |
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static char *inpfile; /* input file name */ |
31 |
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static int lineno; /* current line number */ |
32 |
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static int faceno; /* current face number */ |
33 |
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|
34 |
< |
static int getstmt(); |
35 |
< |
static int cvtndx(); |
36 |
< |
static OBJECT getmod(); |
37 |
< |
static int putface(); |
38 |
< |
static int puttri(); |
39 |
< |
static void freeverts(); |
40 |
< |
static int newv(); |
41 |
< |
static int newvn(); |
42 |
< |
static int newvt(); |
43 |
< |
static void syntax(); |
34 |
> |
static int getstmt(char *av[MAXARG], FILE *fp); |
35 |
> |
static int cvtndx(VNDX vi, char *vs); |
36 |
> |
static int putface(int ac, char **av); |
37 |
> |
static OBJECT getmod(void); |
38 |
> |
static int puttri(char *v1, char *v2, char *v3); |
39 |
> |
static void freeverts(void); |
40 |
> |
static int newv(double x, double y, double z); |
41 |
> |
static int newvn(double x, double y, double z); |
42 |
> |
static int newvt(double x, double y); |
43 |
> |
static void syntax(char *er); |
44 |
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|
45 |
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|
46 |
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void |
47 |
< |
wfreadobj(objfn) /* read in .OBJ file and convert */ |
48 |
< |
char *objfn; |
47 |
> |
wfreadobj( /* read in .OBJ file and convert */ |
48 |
> |
char *objfn |
49 |
> |
) |
50 |
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{ |
51 |
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FILE *fp; |
52 |
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char *argv[MAXARG]; |
53 |
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int argc; |
54 |
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int nstats, nunknown; |
54 |
– |
int i; |
55 |
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|
56 |
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if (objfn == NULL) { |
57 |
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inpfile = "<stdin>"; |
66 |
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group[0] = '\0'; |
67 |
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lineno = 0; faceno = 0; |
68 |
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/* scan until EOF */ |
69 |
< |
while (argc = getstmt(argv, fp)) { |
69 |
> |
while ( (argc = getstmt(argv, fp)) ) { |
70 |
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switch (argv[0][0]) { |
71 |
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case 'v': /* vertex */ |
72 |
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switch (argv[0][1]) { |
157 |
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|
158 |
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|
159 |
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static int |
160 |
< |
getstmt(av, fp) /* read the next statement from fp */ |
161 |
< |
register char *av[MAXARG]; |
162 |
< |
FILE *fp; |
160 |
> |
getstmt( /* read the next statement from fp */ |
161 |
> |
register char *av[MAXARG], |
162 |
> |
FILE *fp |
163 |
> |
) |
164 |
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{ |
165 |
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static char sbuf[MAXARG*16]; |
166 |
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register char *cp; |
176 |
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lineno++; |
177 |
|
*cp++ = '\0'; |
178 |
|
} |
179 |
< |
if (!*cp || i >= MAXARG-1) |
179 |
> |
if (!*cp) |
180 |
|
break; |
181 |
+ |
if (i >= MAXARG-1) { |
182 |
+ |
sprintf(errmsg, |
183 |
+ |
"%s: too many arguments near line %d (limit %d)\n", |
184 |
+ |
inpfile, lineno+1, MAXARG-1); |
185 |
+ |
break; |
186 |
+ |
} |
187 |
|
av[i++] = cp; |
188 |
|
while (*++cp && !isspace(*cp)) |
189 |
|
; |
197 |
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|
198 |
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|
199 |
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static int |
200 |
< |
cvtndx(vi, vs) /* convert vertex string to index */ |
201 |
< |
register VNDX vi; |
202 |
< |
register char *vs; |
200 |
> |
cvtndx( /* convert vertex string to index */ |
201 |
> |
register VNDX vi, |
202 |
> |
register char *vs |
203 |
> |
) |
204 |
|
{ |
205 |
|
/* get point */ |
206 |
|
vi[0] = atoi(vs); |
246 |
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|
247 |
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|
248 |
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static int |
249 |
< |
putface(ac, av) /* put out an N-sided polygon */ |
250 |
< |
int ac; |
251 |
< |
register char **av; |
249 |
> |
putface( /* put out an N-sided polygon */ |
250 |
> |
int ac, |
251 |
> |
register char **av |
252 |
> |
) |
253 |
|
{ |
254 |
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char *cp; |
255 |
|
register int i; |
268 |
|
|
269 |
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|
270 |
|
static OBJECT |
271 |
< |
getmod() /* get current modifier ID */ |
271 |
> |
getmod(void) /* get current modifier ID */ |
272 |
|
{ |
273 |
|
char *mnam; |
274 |
|
OBJECT mod; |
294 |
|
|
295 |
|
|
296 |
|
static int |
297 |
< |
puttri(v1, v2, v3) /* convert a triangle */ |
298 |
< |
char *v1, *v2, *v3; |
297 |
> |
puttri( /* convert a triangle */ |
298 |
> |
char *v1, |
299 |
> |
char *v2, |
300 |
> |
char *v3 |
301 |
> |
) |
302 |
|
{ |
303 |
|
VNDX v1i, v2i, v3i; |
304 |
< |
FLOAT *v1c, *v2c, *v3c; |
305 |
< |
FLOAT *v1n, *v2n, *v3n; |
304 |
> |
RREAL *v1c, *v2c, *v3c; |
305 |
> |
RREAL *v1n, *v2n, *v3n; |
306 |
|
|
307 |
< |
if (!cvtndx(v1i, v1) || !cvtndx(v2i, v2) || !cvtndx(v3i, v3)) |
307 |
> |
if (!cvtndx(v1i, v1) || !cvtndx(v2i, v2) || !cvtndx(v3i, v3)) { |
308 |
> |
error(WARNING, "bad vertex reference"); |
309 |
|
return(0); |
310 |
< |
|
310 |
> |
} |
311 |
|
if (v1i[1]>=0 && v2i[1]>=0 && v3i[1]>=0) { |
312 |
|
v1c = vtlist[v1i[1]]; |
313 |
|
v2c = vtlist[v2i[1]]; |
328 |
|
|
329 |
|
|
330 |
|
static void |
331 |
< |
freeverts() /* free all vertices */ |
331 |
> |
freeverts(void) /* free all vertices */ |
332 |
|
{ |
333 |
|
if (nvs) { |
334 |
|
free((void *)vlist); |
346 |
|
|
347 |
|
|
348 |
|
static int |
349 |
< |
newv(x, y, z) /* create a new vertex */ |
350 |
< |
double x, y, z; |
349 |
> |
newv( /* create a new vertex */ |
350 |
> |
double x, |
351 |
> |
double y, |
352 |
> |
double z |
353 |
> |
) |
354 |
|
{ |
355 |
|
if (!(nvs%CHUNKSIZ)) { /* allocate next block */ |
356 |
|
if (nvs == 0) |
370 |
|
|
371 |
|
|
372 |
|
static int |
373 |
< |
newvn(x, y, z) /* create a new vertex normal */ |
374 |
< |
double x, y, z; |
373 |
> |
newvn( /* create a new vertex normal */ |
374 |
> |
double x, |
375 |
> |
double y, |
376 |
> |
double z |
377 |
> |
) |
378 |
|
{ |
379 |
|
if (!(nvns%CHUNKSIZ)) { /* allocate next block */ |
380 |
|
if (nvns == 0) |
396 |
|
|
397 |
|
|
398 |
|
static int |
399 |
< |
newvt(x, y) /* create a new texture map vertex */ |
400 |
< |
double x, y; |
399 |
> |
newvt( /* create a new texture map vertex */ |
400 |
> |
double x, |
401 |
> |
double y |
402 |
> |
) |
403 |
|
{ |
404 |
|
if (!(nvts%CHUNKSIZ)) { /* allocate next block */ |
405 |
|
if (nvts == 0) |
406 |
< |
vtlist = (FLOAT (*)[2])malloc(CHUNKSIZ*2*sizeof(FLOAT)); |
406 |
> |
vtlist = (RREAL (*)[2])malloc(CHUNKSIZ*2*sizeof(RREAL)); |
407 |
|
else |
408 |
< |
vtlist = (FLOAT (*)[2])realloc((void *)vtlist, |
409 |
< |
(nvts+CHUNKSIZ)*2*sizeof(FLOAT)); |
408 |
> |
vtlist = (RREAL (*)[2])realloc((void *)vtlist, |
409 |
> |
(nvts+CHUNKSIZ)*2*sizeof(RREAL)); |
410 |
|
if (vtlist == NULL) |
411 |
|
error(SYSTEM, "out of memory in newvt"); |
412 |
|
} |
418 |
|
|
419 |
|
|
420 |
|
static void |
421 |
< |
syntax(er) /* report syntax error and exit */ |
422 |
< |
char *er; |
421 |
> |
syntax( /* report syntax error and exit */ |
422 |
> |
char *er |
423 |
> |
) |
424 |
|
{ |
425 |
|
sprintf(errmsg, "%s: Wavefront syntax error near line %d: %s\n", |
426 |
|
inpfile, lineno, er); |