1 |
< |
/* Copyright (c) 1994 Regents of the University of California */ |
1 |
> |
/* Copyright (c) 1996 Regents of the University of California */ |
2 |
|
|
3 |
|
#ifndef lint |
4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
27 |
|
|
28 |
|
int (*mg_ehand[MG_NENTITIES])(); |
29 |
|
|
30 |
+ |
/* Handler routine for unknown entities */ |
31 |
+ |
|
32 |
+ |
int (*mg_uhand)() = mg_defuhand; |
33 |
+ |
|
34 |
+ |
unsigned mg_nunknown; /* count of unknown entities */ |
35 |
+ |
|
36 |
|
/* error messages */ |
37 |
|
|
38 |
|
char *mg_err[MG_NERRS] = MG_ERRLIST; |
63 |
|
|
64 |
|
static int e_any_toss(), /* discard unneeded entity */ |
65 |
|
e_ies(), /* IES luminaire file */ |
66 |
< |
e_include(), /* include file */ |
61 |
< |
e_sph(), /* sphere */ |
66 |
> |
e_cct(), /* color temperature */ |
67 |
|
e_cmix(), /* color mixtures */ |
68 |
< |
e_cspec(), /* color spectra */ |
64 |
< |
e_cyl(), /* cylinder */ |
65 |
< |
e_cone(), /* cone */ |
66 |
< |
e_prism(), /* prism */ |
67 |
< |
e_ring(), /* ring */ |
68 |
< |
e_torus(); /* torus */ |
68 |
> |
e_cspec(); /* color spectra */ |
69 |
|
|
70 |
|
/* alternate handler support functions */ |
71 |
|
|
88 |
|
mg_ehand[MG_E_INCLUDE] = e_include; |
89 |
|
if (mg_ehand[MG_E_SPH] == NULL) { |
90 |
|
mg_ehand[MG_E_SPH] = e_sph; |
91 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
91 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
92 |
|
} else |
93 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
93 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
94 |
|
if (mg_ehand[MG_E_CYL] == NULL) { |
95 |
|
mg_ehand[MG_E_CYL] = e_cyl; |
96 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
96 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
97 |
|
} else |
98 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
98 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
99 |
|
if (mg_ehand[MG_E_CONE] == NULL) { |
100 |
|
mg_ehand[MG_E_CONE] = e_cone; |
101 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
101 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
102 |
|
} else |
103 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
103 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
104 |
|
if (mg_ehand[MG_E_RING] == NULL) { |
105 |
|
mg_ehand[MG_E_RING] = e_ring; |
106 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
106 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX; |
107 |
|
} else |
108 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
108 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
109 |
|
if (mg_ehand[MG_E_PRISM] == NULL) { |
110 |
|
mg_ehand[MG_E_PRISM] = e_prism; |
111 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX; |
111 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX; |
112 |
|
} else |
113 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
113 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
114 |
|
if (mg_ehand[MG_E_TORUS] == NULL) { |
115 |
|
mg_ehand[MG_E_TORUS] = e_torus; |
116 |
< |
ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX; |
116 |
> |
ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX; |
117 |
|
} else |
118 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF; |
118 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
119 |
> |
if (mg_ehand[MG_E_FACE] == NULL) |
120 |
> |
mg_ehand[MG_E_FACE] = mg_ehand[MG_E_FACEH]; |
121 |
> |
else if (mg_ehand[MG_E_FACEH] == NULL) |
122 |
> |
mg_ehand[MG_E_FACEH] = e_faceh; |
123 |
|
if (mg_ehand[MG_E_COLOR] != NULL) { |
124 |
|
if (mg_ehand[MG_E_CMIX] == NULL) { |
125 |
|
mg_ehand[MG_E_CMIX] = e_cmix; |
126 |
< |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX; |
126 |
> |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
127 |
|
} |
128 |
|
if (mg_ehand[MG_E_CSPEC] == NULL) { |
129 |
|
mg_ehand[MG_E_CSPEC] = e_cspec; |
130 |
< |
ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX; |
130 |
> |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
131 |
|
} |
132 |
+ |
if (mg_ehand[MG_E_CCT] == NULL) { |
133 |
+ |
mg_ehand[MG_E_CCT] = e_cct; |
134 |
+ |
ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT; |
135 |
+ |
} |
136 |
|
} |
137 |
|
/* check for consistency */ |
138 |
|
if (mg_ehand[MG_E_FACE] != NULL) |
139 |
< |
uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF; |
139 |
> |
uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF; |
140 |
|
if (mg_ehand[MG_E_CXY] != NULL || mg_ehand[MG_E_CSPEC] != NULL || |
141 |
|
mg_ehand[MG_E_CMIX] != NULL) |
142 |
< |
uneed |= 1<<MG_E_COLOR; |
142 |
> |
uneed |= 1L<<MG_E_COLOR; |
143 |
|
if (mg_ehand[MG_E_RD] != NULL || mg_ehand[MG_E_TD] != NULL || |
144 |
+ |
mg_ehand[MG_E_IR] != NULL || |
145 |
|
mg_ehand[MG_E_ED] != NULL || |
146 |
|
mg_ehand[MG_E_RS] != NULL || |
147 |
< |
mg_ehand[MG_E_TS] != NULL) |
148 |
< |
uneed |= 1<<MG_E_MATERIAL; |
147 |
> |
mg_ehand[MG_E_TS] != NULL || |
148 |
> |
mg_ehand[MG_E_SIDES] != NULL) |
149 |
> |
uneed |= 1L<<MG_E_MATERIAL; |
150 |
|
for (i = 0; i < MG_NENTITIES; i++) |
151 |
< |
if (uneed & 1<<i && mg_ehand[i] == NULL) { |
151 |
> |
if (uneed & 1L<<i && mg_ehand[i] == NULL) { |
152 |
|
fprintf(stderr, "Missing support for \"%s\" entity\n", |
153 |
|
mg_ename[i]); |
154 |
|
exit(1); |
155 |
|
} |
156 |
|
/* add support as needed */ |
157 |
< |
if (ineed & 1<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex) |
157 |
> |
if (ineed & 1L<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex) |
158 |
|
e_supp[MG_E_VERTEX] = c_hvertex; |
159 |
< |
if (ineed & 1<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex) |
159 |
> |
if (ineed & 1L<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex) |
160 |
|
e_supp[MG_E_POINT] = c_hvertex; |
161 |
< |
if (ineed & 1<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex) |
161 |
> |
if (ineed & 1L<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex) |
162 |
|
e_supp[MG_E_NORMAL] = c_hvertex; |
163 |
< |
if (ineed & 1<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor) |
163 |
> |
if (ineed & 1L<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor) |
164 |
|
e_supp[MG_E_COLOR] = c_hcolor; |
165 |
< |
if (ineed & 1<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor) |
165 |
> |
if (ineed & 1L<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor) |
166 |
|
e_supp[MG_E_CXY] = c_hcolor; |
167 |
< |
if (ineed & 1<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor) |
167 |
> |
if (ineed & 1L<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor) |
168 |
|
e_supp[MG_E_CSPEC] = c_hcolor; |
169 |
< |
if (ineed & 1<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor) |
169 |
> |
if (ineed & 1L<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor) |
170 |
|
e_supp[MG_E_CMIX] = c_hcolor; |
171 |
+ |
if (ineed & 1L<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor) |
172 |
+ |
e_supp[MG_E_CCT] = c_hcolor; |
173 |
|
/* discard remaining entities */ |
174 |
|
for (i = 0; i < MG_NENTITIES; i++) |
175 |
|
if (mg_ehand[i] == NULL) |
177 |
|
} |
178 |
|
|
179 |
|
|
168 |
– |
|
180 |
|
int |
181 |
|
mg_entity(name) /* get entity number from its name */ |
182 |
|
char *name; |
206 |
|
{ |
207 |
|
int rv; |
208 |
|
|
209 |
< |
if (en < 0 && (en = mg_entity(av[0])) < 0) |
209 |
> |
if (en < 0 && (en = mg_entity(av[0])) < 0) { /* unknown entity */ |
210 |
> |
if (mg_uhand != NULL) |
211 |
> |
return((*mg_uhand)(ac, av)); |
212 |
|
return(MG_EUNK); |
213 |
< |
if (e_supp[en] != NULL) { |
213 |
> |
} |
214 |
> |
if (e_supp[en] != NULL) { /* support handler */ |
215 |
|
if ((rv = (*e_supp[en])(ac, av)) != MG_OK) |
216 |
|
return(rv); |
217 |
|
} |
218 |
< |
return((*mg_ehand[en])(ac, av)); |
218 |
> |
return((*mg_ehand[en])(ac, av)); /* assigned handler */ |
219 |
|
} |
220 |
|
|
221 |
|
|
225 |
|
char *fn; |
226 |
|
{ |
227 |
|
static int nfids; |
214 |
– |
int olen; |
228 |
|
register char *cp; |
229 |
|
|
230 |
|
ctx->fid = ++nfids; |
237 |
|
return(MG_OK); |
238 |
|
} |
239 |
|
/* get name relative to this context */ |
240 |
< |
if (mg_file != NULL && |
228 |
< |
(cp = strrchr(mg_file->fname, '/')) != NULL) |
229 |
< |
olen = cp - mg_file->fname + 1; |
230 |
< |
else |
231 |
< |
olen = 0; |
232 |
< |
if (olen) |
240 |
> |
if (mg_file != NULL && (cp = strrchr(mg_file->fname, '/')) != NULL) { |
241 |
|
strcpy(ctx->fname, mg_file->fname); |
242 |
< |
strcpy(ctx->fname+olen, fn); |
242 |
> |
strcpy(ctx->fname+(cp-mg_file->fname+1), fn); |
243 |
> |
} else |
244 |
> |
strcpy(ctx->fname, fn); |
245 |
|
ctx->fp = fopen(ctx->fname, "r"); |
246 |
|
if (ctx->fp == NULL) |
247 |
|
return(MG_ENOFILE); |
257 |
|
register MG_FCTXT *ctx = mg_file; |
258 |
|
|
259 |
|
mg_file = ctx->prev; /* restore enclosing context */ |
260 |
< |
if (ctx->fp == stdin) |
261 |
< |
return; /* don't close standard input */ |
252 |
< |
fclose(ctx->fp); |
260 |
> |
if (ctx->fp != stdin) /* close file if it's a file */ |
261 |
> |
fclose(ctx->fp); |
262 |
|
} |
263 |
|
|
264 |
|
|
300 |
|
if (fgets(mg_file->inpline+len, |
301 |
|
MG_MAXLINE-len, mg_file->fp) == NULL) |
302 |
|
return(len); |
294 |
– |
mg_file->lineno++; |
303 |
|
len += strlen(mg_file->inpline+len); |
304 |
< |
if (len > 1 && mg_file->inpline[len-2] == '\\') |
305 |
< |
mg_file->inpline[--len-1] = ' '; |
306 |
< |
} while (mg_file->inpline[len]); |
304 |
> |
if (len >= MG_MAXLINE-1) |
305 |
> |
return(len); |
306 |
> |
mg_file->lineno++; |
307 |
> |
} while (len > 1 && mg_file->inpline[len-2] == '\\'); |
308 |
|
|
309 |
|
return(len); |
310 |
|
} |
315 |
|
{ |
316 |
|
char abuf[MG_MAXLINE]; |
317 |
|
char *argv[MG_MAXARGC]; |
318 |
< |
int en; |
319 |
< |
register char *cp, **ap; |
320 |
< |
|
321 |
< |
strcpy(cp=abuf, mg_file->inpline); |
322 |
< |
ap = argv; /* break into words */ |
318 |
> |
register char *cp, *cp2, **ap; |
319 |
> |
/* copy line, removing escape chars */ |
320 |
> |
cp = abuf; cp2 = mg_file->inpline; |
321 |
> |
while ((*cp++ = *cp2++)) |
322 |
> |
if (cp2[0] == '\n' && cp2[-1] == '\\') |
323 |
> |
cp--; |
324 |
> |
cp = abuf; ap = argv; /* break into words */ |
325 |
|
for ( ; ; ) { |
326 |
|
while (isspace(*cp)) |
327 |
|
*cp++ = '\0'; |
347 |
|
{ |
348 |
|
MG_FCTXT cntxt; |
349 |
|
int rval; |
350 |
+ |
register int nbr; |
351 |
|
|
352 |
|
if ((rval = mg_open(&cntxt, fn)) != MG_OK) { |
353 |
|
fprintf(stderr, "%s: %s\n", fn, mg_err[rval]); |
354 |
|
return(rval); |
355 |
|
} |
356 |
< |
while (mg_read()) /* parse each line */ |
356 |
> |
while ((nbr = mg_read()) > 0) { /* parse each line */ |
357 |
> |
if (nbr >= MG_MAXLINE-1) { |
358 |
> |
fprintf(stderr, "%s: %d: %s\n", cntxt.fname, |
359 |
> |
cntxt.lineno, mg_err[rval=MG_ELINE]); |
360 |
> |
break; |
361 |
> |
} |
362 |
|
if ((rval = mg_parse()) != MG_OK) { |
363 |
|
fprintf(stderr, "%s: %d: %s:\n%s", cntxt.fname, |
364 |
|
cntxt.lineno, mg_err[rval], |
365 |
|
cntxt.inpline); |
366 |
|
break; |
367 |
|
} |
368 |
+ |
} |
369 |
|
mg_close(); |
370 |
|
return(rval); |
371 |
|
} |
372 |
|
|
373 |
|
|
374 |
+ |
int |
375 |
+ |
mg_defuhand(ac, av) /* default handler for unknown entities */ |
376 |
+ |
int ac; |
377 |
+ |
char **av; |
378 |
+ |
{ |
379 |
+ |
if (mg_nunknown++ == 0) /* report first incident */ |
380 |
+ |
fprintf(stderr, "%s: %d: %s: %s\n", mg_file->fname, |
381 |
+ |
mg_file->lineno, mg_err[MG_EUNK], av[0]); |
382 |
+ |
return(MG_OK); |
383 |
+ |
} |
384 |
+ |
|
385 |
+ |
|
386 |
|
void |
387 |
|
mg_clear() /* clear parser history */ |
388 |
|
{ |
389 |
|
c_clearall(); /* clear context tables */ |
390 |
< |
mg_file = NULL; /* reset our context */ |
390 |
> |
while (mg_file != NULL) /* reset our file context */ |
391 |
> |
mg_close(); |
392 |
|
} |
393 |
|
|
394 |
|
|
406 |
|
} |
407 |
|
|
408 |
|
|
409 |
< |
static int |
409 |
> |
int |
410 |
|
e_include(ac, av) /* include file */ |
411 |
|
int ac; |
412 |
|
char **av; |
413 |
|
{ |
414 |
|
char *xfarg[MG_MAXARGC]; |
415 |
|
MG_FCTXT ictx; |
416 |
< |
int rv; |
416 |
> |
XF_SPEC *xf_orig = xf_context; |
417 |
> |
register int rv; |
418 |
|
|
419 |
|
if (ac < 2) |
420 |
|
return(MG_EARGC); |
427 |
|
for (i = 1; i < ac-1; i++) |
428 |
|
xfarg[i] = av[i+1]; |
429 |
|
xfarg[ac-1] = NULL; |
430 |
< |
if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK) |
430 |
> |
if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK) { |
431 |
> |
mg_close(); |
432 |
|
return(rv); |
433 |
+ |
} |
434 |
|
} |
435 |
< |
while (!feof(mg_file->fp)) { |
436 |
< |
while (mg_read()) |
435 |
> |
do { |
436 |
> |
while ((rv = mg_read()) > 0) { |
437 |
> |
if (rv >= MG_MAXLINE-1) { |
438 |
> |
fprintf(stderr, "%s: %d: %s\n", ictx.fname, |
439 |
> |
ictx.lineno, mg_err[MG_ELINE]); |
440 |
> |
mg_close(); |
441 |
> |
return(MG_EINCL); |
442 |
> |
} |
443 |
|
if ((rv = mg_parse()) != MG_OK) { |
444 |
|
fprintf(stderr, "%s: %d: %s:\n%s", ictx.fname, |
445 |
|
ictx.lineno, mg_err[rv], |
447 |
|
mg_close(); |
448 |
|
return(MG_EINCL); |
449 |
|
} |
450 |
+ |
} |
451 |
|
if (ac > 2) |
452 |
< |
if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK) |
452 |
> |
if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK) { |
453 |
> |
mg_close(); |
454 |
|
return(rv); |
455 |
< |
} |
455 |
> |
} |
456 |
> |
} while (xf_context != xf_orig); |
457 |
|
mg_close(); |
458 |
|
return(MG_OK); |
459 |
|
} |
460 |
|
|
461 |
|
|
462 |
+ |
int |
463 |
+ |
e_faceh(ac, av) /* replace face+holes with single contour */ |
464 |
+ |
int ac; |
465 |
+ |
char **av; |
466 |
+ |
{ |
467 |
+ |
char *newav[MG_MAXARGC]; |
468 |
+ |
int lastp = 0; |
469 |
+ |
register int i, j; |
470 |
+ |
|
471 |
+ |
newav[0] = mg_ename[MG_E_FACE]; |
472 |
+ |
for (i = 1; i < ac; i++) |
473 |
+ |
if (av[i][0] == '-') { |
474 |
+ |
if (i < 4) |
475 |
+ |
return(MG_EARGC); |
476 |
+ |
if (i >= ac-1) |
477 |
+ |
break; |
478 |
+ |
if (!lastp) |
479 |
+ |
lastp = i-1; |
480 |
+ |
for (j = i+1; j < ac-1 && av[j+1][0] != '-'; j++) |
481 |
+ |
; |
482 |
+ |
if (j - i < 3) |
483 |
+ |
return(MG_EARGC); |
484 |
+ |
newav[i] = av[j]; /* connect hole loop */ |
485 |
+ |
} else |
486 |
+ |
newav[i] = av[i]; /* hole or perimeter vertex */ |
487 |
+ |
if (lastp) |
488 |
+ |
newav[i++] = av[lastp]; /* finish seam to outside */ |
489 |
+ |
newav[i] = NULL; |
490 |
+ |
return(mg_handle(MG_E_FACE, i, newav)); |
491 |
+ |
} |
492 |
+ |
|
493 |
+ |
|
494 |
|
static void |
495 |
|
make_axes(u, v, w) /* compute u and v given w (normalized) */ |
496 |
|
FVECT u, v, w; |
508 |
|
} |
509 |
|
|
510 |
|
|
511 |
< |
static int |
511 |
> |
int |
512 |
|
e_sph(ac, av) /* expand a sphere into cones */ |
513 |
|
int ac; |
514 |
|
char **av; |
560 |
|
} |
561 |
|
|
562 |
|
|
563 |
< |
static int |
563 |
> |
int |
564 |
|
e_torus(ac, av) /* expand a torus into cones */ |
565 |
|
int ac; |
566 |
|
char **av; |
652 |
|
} |
653 |
|
|
654 |
|
|
655 |
< |
static int |
655 |
> |
int |
656 |
|
e_cyl(ac, av) /* replace a cylinder with equivalent cone */ |
657 |
|
int ac; |
658 |
|
char **av; |
669 |
|
} |
670 |
|
|
671 |
|
|
672 |
< |
static int |
672 |
> |
int |
673 |
|
e_ring(ac, av) /* turn a ring into polygons */ |
674 |
|
int ac; |
675 |
|
char **av; |
767 |
|
} |
768 |
|
|
769 |
|
|
770 |
< |
static int |
770 |
> |
int |
771 |
|
e_cone(ac, av) /* turn a cone into polygons */ |
772 |
|
int ac; |
773 |
|
char **av; |
782 |
|
static char *p4ent[5] = {mg_ename[MG_E_POINT],p4[0],p4[1],p4[2]}; |
783 |
|
static char *n4ent[5] = {mg_ename[MG_E_NORMAL],n4[0],n4[1],n4[2]}; |
784 |
|
static char *fent[6] = {mg_ename[MG_E_FACE],"_cv1","_cv2","_cv3","_cv4"}; |
785 |
+ |
char *v1n; |
786 |
|
register C_VERTEX *cv1, *cv2; |
787 |
|
register int i, j; |
788 |
|
FVECT u, v, w; |
798 |
|
if ((cv1 = c_getvert(av[1])) == NULL || |
799 |
|
(cv2 = c_getvert(av[3])) == NULL) |
800 |
|
return(MG_EUNDEF); |
801 |
+ |
v1n = av[1]; |
802 |
|
if (!isflt(av[2]) || !isflt(av[4])) |
803 |
|
return(MG_ETYPE); |
804 |
|
rad1 = atof(av[2]); |
809 |
|
if (rad2 == 0.) |
810 |
|
return(MG_EILL); |
811 |
|
} else if (rad2 != 0.) { |
812 |
< |
if (rad1 < 0. ^ rad2 < 0.) |
812 |
> |
if ((rad1 < 0.) ^ (rad2 < 0.)) |
813 |
|
return(MG_EILL); |
814 |
|
} else { /* swap */ |
815 |
|
C_VERTEX *cv; |
817 |
|
cv = cv1; |
818 |
|
cv1 = cv2; |
819 |
|
cv2 = cv; |
820 |
+ |
v1n = av[3]; |
821 |
|
d = rad1; |
822 |
|
rad1 = rad2; |
823 |
|
rad2 = d; |
851 |
|
if ((rv = mg_handle(MG_E_NORMAL, 4, n3ent)) != MG_OK) |
852 |
|
return(rv); |
853 |
|
if (rad1 == 0.) { /* triangles */ |
854 |
< |
v1ent[3] = av[1]; |
854 |
> |
v1ent[3] = v1n; |
855 |
|
if ((rv = mg_handle(MG_E_VERTEX, 4, v1ent)) != MG_OK) |
856 |
|
return(rv); |
857 |
|
for (j = 0; j < 3; j++) |
937 |
|
} |
938 |
|
|
939 |
|
|
940 |
< |
static int |
940 |
> |
int |
941 |
|
e_prism(ac, av) /* turn a prism into polygons */ |
942 |
|
int ac; |
943 |
|
char **av; |
944 |
|
{ |
945 |
|
static char p[3][24]; |
946 |
< |
static char *vent[4] = {mg_ename[MG_E_VERTEX],NULL,"="}; |
946 |
> |
static char *vent[5] = {mg_ename[MG_E_VERTEX],NULL,"="}; |
947 |
|
static char *pent[5] = {mg_ename[MG_E_POINT],p[0],p[1],p[2]}; |
948 |
+ |
static char *znorm[5] = {mg_ename[MG_E_NORMAL],"0","0","0"}; |
949 |
|
char *newav[MG_MAXARGC], nvn[MG_MAXARGC-1][8]; |
950 |
|
double length; |
951 |
+ |
int hasnorm; |
952 |
|
FVECT v1, v2, v3, norm; |
953 |
|
register C_VERTEX *cv; |
954 |
|
C_VERTEX *cv0; |
955 |
|
int rv; |
956 |
|
register int i, j; |
957 |
< |
|
957 |
> |
/* check arguments */ |
958 |
|
if (ac < 5) |
959 |
|
return(MG_EARGC); |
960 |
|
if (!isflt(av[ac-1])) |
962 |
|
length = atof(av[ac-1]); |
963 |
|
if (length <= FTINY && length >= -FTINY) |
964 |
|
return(MG_EILL); |
965 |
< |
/* do bottom face */ |
886 |
< |
newav[0] = mg_ename[MG_E_FACE]; |
887 |
< |
for (i = 1; i < ac-1; i++) |
888 |
< |
newav[i] = av[i]; |
889 |
< |
newav[i] = NULL; |
890 |
< |
if ((rv = mg_handle(MG_E_FACE, i, newav)) != MG_OK) |
891 |
< |
return(rv); |
892 |
< |
/* compute face normal */ |
965 |
> |
/* compute face normal */ |
966 |
|
if ((cv0 = c_getvert(av[1])) == NULL) |
967 |
|
return(MG_EUNDEF); |
968 |
+ |
hasnorm = 0; |
969 |
|
norm[0] = norm[1] = norm[2] = 0.; |
970 |
|
v1[0] = v1[1] = v1[2] = 0.; |
971 |
|
for (i = 2; i < ac-1; i++) { |
972 |
|
if ((cv = c_getvert(av[i])) == NULL) |
973 |
|
return(MG_EUNDEF); |
974 |
+ |
hasnorm += !is0vect(cv->n); |
975 |
|
v2[0] = cv->p[0] - cv0->p[0]; |
976 |
|
v2[1] = cv->p[1] - cv0->p[1]; |
977 |
|
v2[2] = cv->p[2] - cv0->p[2]; |
983 |
|
} |
984 |
|
if (normalize(norm) == 0.) |
985 |
|
return(MG_EILL); |
986 |
< |
/* create moved vertices */ |
986 |
> |
/* create moved vertices */ |
987 |
|
for (i = 1; i < ac-1; i++) { |
988 |
|
sprintf(nvn[i-1], "_pv%d", i); |
989 |
|
vent[1] = nvn[i-1]; |
990 |
< |
if ((rv = mg_handle(MG_E_VERTEX, 3, vent)) != MG_OK) |
990 |
> |
vent[3] = av[i]; |
991 |
> |
if ((rv = mg_handle(MG_E_VERTEX, 4, vent)) != MG_OK) |
992 |
|
return(rv); |
993 |
|
cv = c_getvert(av[i]); /* checked above */ |
994 |
|
for (j = 0; j < 3; j++) |
995 |
|
sprintf(p[j], FLTFMT, cv->p[j] - length*norm[j]); |
996 |
|
if ((rv = mg_handle(MG_E_POINT, 4, pent)) != MG_OK) |
997 |
|
return(rv); |
922 |
– |
newav[ac-1-i] = nvn[i-1]; /* reverse */ |
998 |
|
} |
999 |
< |
/* do top face */ |
1000 |
< |
if ((rv = mg_handle(MG_E_FACE, ac-1, newav)) != MG_OK) |
926 |
< |
return(rv); |
999 |
> |
/* make faces */ |
1000 |
> |
newav[0] = mg_ename[MG_E_FACE]; |
1001 |
|
/* do the side faces */ |
1002 |
|
newav[5] = NULL; |
1003 |
|
newav[3] = av[ac-2]; |
1010 |
|
newav[3] = newav[2]; |
1011 |
|
newav[4] = newav[1]; |
1012 |
|
} |
1013 |
+ |
/* do top face */ |
1014 |
+ |
for (i = 1; i < ac-1; i++) { |
1015 |
+ |
if (hasnorm) { /* zero normals */ |
1016 |
+ |
vent[1] = nvn[i-1]; |
1017 |
+ |
if ((rv = mg_handle(MG_E_VERTEX, 2, vent)) != MG_OK) |
1018 |
+ |
return(rv); |
1019 |
+ |
if ((rv = mg_handle(MG_E_NORMAL, 4, znorm)) != MG_OK) |
1020 |
+ |
return(rv); |
1021 |
+ |
} |
1022 |
+ |
newav[ac-1-i] = nvn[i-1]; /* reverse */ |
1023 |
+ |
} |
1024 |
+ |
if ((rv = mg_handle(MG_E_FACE, ac-1, newav)) != MG_OK) |
1025 |
+ |
return(rv); |
1026 |
+ |
/* do bottom face */ |
1027 |
+ |
if (hasnorm) |
1028 |
+ |
for (i = 1; i < ac-1; i++) { |
1029 |
+ |
vent[1] = nvn[i-1]; |
1030 |
+ |
vent[3] = av[i]; |
1031 |
+ |
if ((rv = mg_handle(MG_E_VERTEX, 4, vent)) != MG_OK) |
1032 |
+ |
return(rv); |
1033 |
+ |
if ((rv = mg_handle(MG_E_NORMAL, 4, znorm)) != MG_OK) |
1034 |
+ |
return(rv); |
1035 |
+ |
newav[i] = nvn[i-1]; |
1036 |
+ |
} |
1037 |
+ |
else |
1038 |
+ |
for (i = 1; i < ac-1; i++) |
1039 |
+ |
newav[i] = av[i]; |
1040 |
+ |
newav[i] = NULL; |
1041 |
+ |
if ((rv = mg_handle(MG_E_FACE, i, newav)) != MG_OK) |
1042 |
+ |
return(rv); |
1043 |
|
return(MG_OK); |
1044 |
|
} |
1045 |
|
|
1046 |
|
|
1047 |
|
static int |
1048 |
< |
e_cspec(ac, av) /* handle spectral color */ |
945 |
< |
int ac; |
946 |
< |
char **av; |
1048 |
> |
put_cxy() /* put out current xy chromaticities */ |
1049 |
|
{ |
1050 |
|
static char xbuf[24], ybuf[24]; |
1051 |
|
static char *ccom[4] = {mg_ename[MG_E_CXY], xbuf, ybuf}; |
950 |
– |
int rv; |
1052 |
|
|
1053 |
+ |
sprintf(xbuf, "%.4f", c_ccolor->cx); |
1054 |
+ |
sprintf(ybuf, "%.4f", c_ccolor->cy); |
1055 |
+ |
return(mg_handle(MG_E_CXY, 3, ccom)); |
1056 |
+ |
} |
1057 |
+ |
|
1058 |
+ |
|
1059 |
+ |
static int |
1060 |
+ |
put_cspec() /* put out current color spectrum */ |
1061 |
+ |
{ |
1062 |
+ |
char wl[2][6], vbuf[C_CNSS][24]; |
1063 |
+ |
char *newav[C_CNSS+4]; |
1064 |
+ |
double sf; |
1065 |
+ |
register int i; |
1066 |
+ |
|
1067 |
+ |
if (mg_ehand[MG_E_CSPEC] != c_hcolor) { |
1068 |
+ |
sprintf(wl[0], "%d", C_CMINWL); |
1069 |
+ |
sprintf(wl[1], "%d", C_CMAXWL); |
1070 |
+ |
newav[0] = mg_ename[MG_E_CSPEC]; |
1071 |
+ |
newav[1] = wl[0]; |
1072 |
+ |
newav[2] = wl[1]; |
1073 |
+ |
sf = (double)C_CNSS / c_ccolor->ssum; |
1074 |
+ |
for (i = 0; i < C_CNSS; i++) { |
1075 |
+ |
sprintf(vbuf[i], "%.4f", sf*c_ccolor->ssamp[i]); |
1076 |
+ |
newav[i+3] = vbuf[i]; |
1077 |
+ |
} |
1078 |
+ |
newav[C_CNSS+3] = NULL; |
1079 |
+ |
if ((i = mg_handle(MG_E_CSPEC, C_CNSS+3, newav)) != MG_OK) |
1080 |
+ |
return(i); |
1081 |
+ |
} |
1082 |
+ |
return(MG_OK); |
1083 |
+ |
} |
1084 |
+ |
|
1085 |
+ |
|
1086 |
+ |
static int |
1087 |
+ |
e_cspec(ac, av) /* handle spectral color */ |
1088 |
+ |
int ac; |
1089 |
+ |
char **av; |
1090 |
+ |
{ |
1091 |
+ |
/* convert to xy chromaticity */ |
1092 |
|
c_ccvt(c_ccolor, C_CSXY); |
1093 |
|
/* if it's really their handler, use it */ |
1094 |
< |
if (mg_ehand[MG_E_CXY] != c_hcolor) { |
1095 |
< |
sprintf(xbuf, "%.4f", c_ccolor->cx); |
956 |
< |
sprintf(ybuf, "%.4f", c_ccolor->cy); |
957 |
< |
if ((rv = mg_handle(MG_E_CXY, 3, ccom)) != MG_OK) |
958 |
< |
return(rv); |
959 |
< |
} |
1094 |
> |
if (mg_ehand[MG_E_CXY] != c_hcolor) |
1095 |
> |
return(put_cxy()); |
1096 |
|
return(MG_OK); |
1097 |
|
} |
1098 |
|
|
1102 |
|
int ac; |
1103 |
|
char **av; |
1104 |
|
{ |
969 |
– |
char wl[2][6], vbuf[C_CNSS][24]; |
970 |
– |
char *newav[C_CNSS+4]; |
971 |
– |
int rv; |
972 |
– |
register int i; |
1105 |
|
/* |
1106 |
|
* Contorted logic works as follows: |
1107 |
|
* 1. the colors are already mixed in c_hcolor() support function |
1112 |
|
*/ |
1113 |
|
if (mg_ehand[MG_E_CSPEC] == e_cspec) |
1114 |
|
c_ccvt(c_ccolor, C_CSXY); |
1115 |
< |
else if (c_ccolor->flags & C_CDSPEC) { |
1116 |
< |
if (mg_ehand[MG_E_CSPEC] != c_hcolor) { |
1117 |
< |
sprintf(wl[0], "%d", C_CMINWL); |
1118 |
< |
sprintf(wl[1], "%d", C_CMAXWL); |
1119 |
< |
newav[0] = mg_ename[MG_E_CSPEC]; |
1120 |
< |
newav[1] = wl[0]; |
1121 |
< |
newav[2] = wl[1]; |
1122 |
< |
for (i = 0; i < C_CNSS; i++) { |
1123 |
< |
sprintf(vbuf[i], "%.6f", |
1124 |
< |
(double)c_ccolor->ssamp[i] / |
1125 |
< |
c_ccolor->ssum); |
1126 |
< |
newav[i+3] = vbuf[i]; |
1127 |
< |
} |
1128 |
< |
newav[C_CNSS+3] = NULL; |
1129 |
< |
if ((rv = mg_handle(MG_E_CSPEC, C_CNSS+3, newav)) != MG_OK) |
1130 |
< |
return(rv); |
1131 |
< |
} |
1132 |
< |
return(MG_OK); |
1133 |
< |
} |
1134 |
< |
if (mg_ehand[MG_E_CXY] != c_hcolor) { |
1135 |
< |
sprintf(vbuf[0], "%.4f", c_ccolor->cx); |
1136 |
< |
sprintf(vbuf[1], "%.4f", c_ccolor->cy); |
1137 |
< |
newav[0] = mg_ename[MG_E_CXY]; |
1138 |
< |
newav[1] = vbuf[0]; |
1007 |
< |
newav[2] = vbuf[1]; |
1008 |
< |
newav[3] = NULL; |
1009 |
< |
if ((rv = mg_handle(MG_E_CXY, 3, newav)) != MG_OK) |
1010 |
< |
return(rv); |
1011 |
< |
} |
1115 |
> |
else if (c_ccolor->flags & C_CDSPEC) |
1116 |
> |
return(put_cspec()); |
1117 |
> |
if (mg_ehand[MG_E_CXY] != c_hcolor) |
1118 |
> |
return(put_cxy()); |
1119 |
> |
return(MG_OK); |
1120 |
> |
} |
1121 |
> |
|
1122 |
> |
|
1123 |
> |
static int |
1124 |
> |
e_cct(ac, av) /* handle color temperature */ |
1125 |
> |
int ac; |
1126 |
> |
char **av; |
1127 |
> |
{ |
1128 |
> |
/* |
1129 |
> |
* Logic is similar to e_cmix here. Support handler has already |
1130 |
> |
* converted temperature to spectral color. Put it out as such |
1131 |
> |
* if they support it, otherwise convert to xy chromaticity and |
1132 |
> |
* put it out if they handle it. |
1133 |
> |
*/ |
1134 |
> |
if (mg_ehand[MG_E_CSPEC] != e_cspec) |
1135 |
> |
return(put_cspec()); |
1136 |
> |
c_ccvt(c_ccolor, C_CSXY); |
1137 |
> |
if (mg_ehand[MG_E_CXY] != c_hcolor) |
1138 |
> |
return(put_cxy()); |
1139 |
|
return(MG_OK); |
1140 |
|
} |