26 |
|
|
27 |
|
/* the current contexts */ |
28 |
|
C_COLOR *c_ccolor = &c_uncolor; |
29 |
+ |
char *c_ccname = NULL; |
30 |
|
C_MATERIAL *c_cmaterial = &c_unmaterial; |
31 |
+ |
char *c_cmname = NULL; |
32 |
|
C_VERTEX *c_cvertex = &c_unvertex; |
33 |
+ |
char *c_cvname = NULL; |
34 |
|
|
35 |
|
static LUTAB clr_tab = LU_SINIT(free,free); /* color lookup table */ |
36 |
|
static LUTAB mat_tab = LU_SINIT(free,free); /* material lookup table */ |
61 |
|
if (ac == 1) { /* set unnamed color context */ |
62 |
|
c_uncolor = c_dfcolor; |
63 |
|
c_ccolor = &c_uncolor; |
64 |
+ |
c_ccname = NULL; |
65 |
|
return(MG_OK); |
66 |
|
} |
67 |
|
lp = lu_find(&clr_tab, av[1]); /* lookup context */ |
68 |
|
if (lp == NULL) |
69 |
|
return(MG_EMEM); |
70 |
+ |
c_ccname = lp->key; |
71 |
+ |
c_ccolor = (C_COLOR *)lp->data; |
72 |
|
if (ac == 2) { /* reestablish previous context */ |
73 |
< |
if (lp->data == NULL) |
73 |
> |
if (c_ccolor == NULL) |
74 |
|
return(MG_EUNDEF); |
69 |
– |
c_ccolor = (C_COLOR *)lp->data; |
75 |
|
return(MG_OK); |
76 |
|
} |
77 |
|
if (av[2][0] != '=' || av[2][1]) |
78 |
|
return(MG_ETYPE); |
79 |
< |
if (lp->key == NULL) { /* create new color context */ |
79 |
> |
if (c_ccolor == NULL) { /* create new color context */ |
80 |
|
lp->key = (char *)malloc(strlen(av[1])+1); |
81 |
|
if (lp->key == NULL) |
82 |
|
return(MG_EMEM); |
84 |
|
lp->data = (char *)malloc(sizeof(C_COLOR)); |
85 |
|
if (lp->data == NULL) |
86 |
|
return(MG_EMEM); |
87 |
+ |
c_ccname = lp->key; |
88 |
+ |
c_ccolor = (C_COLOR *)lp->data; |
89 |
+ |
c_ccolor->clock = 0; |
90 |
|
} |
91 |
< |
c_ccolor = (C_COLOR *)lp->data; |
91 |
> |
i = c_ccolor->clock; |
92 |
|
if (ac == 3) { /* use default template */ |
93 |
|
*c_ccolor = c_dfcolor; |
94 |
+ |
c_ccolor->clock = i + 1; |
95 |
|
return(MG_OK); |
96 |
|
} |
97 |
|
lp = lu_find(&clr_tab, av[3]); /* lookup template */ |
100 |
|
if (lp->data == NULL) |
101 |
|
return(MG_EUNDEF); |
102 |
|
*c_ccolor = *(C_COLOR *)lp->data; |
103 |
< |
if (ac > 4) |
95 |
< |
return(MG_EARGC); |
103 |
> |
c_ccolor->clock = i + 1; |
104 |
|
return(MG_OK); |
105 |
|
case MG_E_CXY: /* assign CIE XY value */ |
106 |
|
if (ac != 3) |
113 |
|
if (c_ccolor->cx < 0. | c_ccolor->cy < 0. | |
114 |
|
c_ccolor->cx + c_ccolor->cy > 1.) |
115 |
|
return(MG_EILL); |
116 |
+ |
c_ccolor->clock++; |
117 |
|
return(MG_OK); |
118 |
|
case MG_E_CSPEC: /* assign spectral values */ |
119 |
|
if (ac < 5) |
149 |
|
w, (C_COLOR *)lp->data); |
150 |
|
wsum += w; |
151 |
|
} |
152 |
+ |
c_ccolor->clock++; |
153 |
|
return(MG_OK); |
154 |
|
} |
155 |
|
return(MG_EUNK); |
161 |
|
int ac; |
162 |
|
register char **av; |
163 |
|
{ |
164 |
+ |
int i; |
165 |
|
register LUENT *lp; |
166 |
|
|
167 |
|
switch (mg_entity(av[0])) { |
171 |
|
if (ac == 1) { /* set unnamed material context */ |
172 |
|
c_unmaterial = c_dfmaterial; |
173 |
|
c_cmaterial = &c_unmaterial; |
174 |
+ |
c_cmname = NULL; |
175 |
|
return(MG_OK); |
176 |
|
} |
177 |
|
lp = lu_find(&mat_tab, av[1]); /* lookup context */ |
178 |
|
if (lp == NULL) |
179 |
|
return(MG_EMEM); |
180 |
+ |
c_cmname = lp->key; |
181 |
+ |
c_cmaterial = (C_MATERIAL *)lp->data; |
182 |
|
if (ac == 2) { /* reestablish previous context */ |
183 |
< |
if (lp->data == NULL) |
183 |
> |
if (c_cmaterial == NULL) |
184 |
|
return(MG_EUNDEF); |
171 |
– |
c_cmaterial = (C_MATERIAL *)lp->data; |
185 |
|
return(MG_OK); |
186 |
|
} |
187 |
|
if (av[2][0] != '=' || av[2][1]) |
188 |
|
return(MG_ETYPE); |
189 |
< |
if (lp->key == NULL) { /* create new material context */ |
189 |
> |
if (c_cmaterial == NULL) { /* create new material */ |
190 |
|
lp->key = (char *)malloc(strlen(av[1])+1); |
191 |
|
if (lp->key == NULL) |
192 |
|
return(MG_EMEM); |
194 |
|
lp->data = (char *)malloc(sizeof(C_MATERIAL)); |
195 |
|
if (lp->data == NULL) |
196 |
|
return(MG_EMEM); |
197 |
+ |
c_cmname = lp->key; |
198 |
+ |
c_cmaterial = (C_MATERIAL *)lp->data; |
199 |
+ |
c_cmaterial->clock = 0; |
200 |
|
} |
201 |
< |
c_cmaterial = (C_MATERIAL *)lp->data; |
201 |
> |
i = c_cmaterial->clock; |
202 |
|
if (ac == 3) { /* use default template */ |
203 |
|
*c_cmaterial = c_dfmaterial; |
204 |
< |
c_cmaterial->name = lp->key; |
204 |
> |
c_cmaterial->clock = i + 1; |
205 |
|
return(MG_OK); |
206 |
|
} |
207 |
|
lp = lu_find(&mat_tab, av[3]); /* lookup template */ |
210 |
|
if (lp->data == NULL) |
211 |
|
return(MG_EUNDEF); |
212 |
|
*c_cmaterial = *(C_MATERIAL *)lp->data; |
213 |
< |
c_cmaterial->name = lp->key; |
198 |
< |
c_cmaterial->clock = 1; |
199 |
< |
if (ac > 4) |
200 |
< |
return(MG_EARGC); |
213 |
> |
c_cmaterial->clock = i + 1; |
214 |
|
return(MG_OK); |
215 |
|
case MG_E_RD: /* set diffuse reflectance */ |
216 |
|
if (ac != 2) |
243 |
|
if (c_cmaterial->td < 0. | c_cmaterial->td > 1.) |
244 |
|
return(MG_EILL); |
245 |
|
c_cmaterial->td_c = *c_ccolor; |
246 |
+ |
c_cmaterial->clock++; |
247 |
|
return(MG_OK); |
248 |
|
case MG_E_RS: /* set specular reflectance */ |
249 |
|
if (ac != 3) |
271 |
|
c_cmaterial->ts_c = *c_ccolor; |
272 |
|
c_cmaterial->clock++; |
273 |
|
return(MG_OK); |
274 |
+ |
case MG_E_SIDES: /* set number of sides */ |
275 |
+ |
if (ac != 2) |
276 |
+ |
return(MG_EARGC); |
277 |
+ |
if (!isint(av[1])) |
278 |
+ |
return(MG_ETYPE); |
279 |
+ |
i = atoi(av[1]); |
280 |
+ |
if (i == 1) |
281 |
+ |
c_cmaterial->sided = 1; |
282 |
+ |
else if (i == 2) |
283 |
+ |
c_cmaterial->sided = 0; |
284 |
+ |
else |
285 |
+ |
return(MG_EILL); |
286 |
+ |
c_cmaterial->clock++; |
287 |
+ |
return(MG_OK); |
288 |
|
} |
289 |
|
return(MG_EUNK); |
290 |
|
} |
295 |
|
int ac; |
296 |
|
register char **av; |
297 |
|
{ |
298 |
+ |
int i; |
299 |
|
register LUENT *lp; |
300 |
|
|
301 |
|
switch (mg_entity(av[0])) { |
305 |
|
if (ac == 1) { /* set unnamed vertex context */ |
306 |
|
c_unvertex = c_dfvertex; |
307 |
|
c_cvertex = &c_unvertex; |
308 |
+ |
c_cvname = NULL; |
309 |
|
return(MG_OK); |
310 |
|
} |
311 |
|
lp = lu_find(&vtx_tab, av[1]); /* lookup context */ |
312 |
|
if (lp == NULL) |
313 |
|
return(MG_EMEM); |
314 |
+ |
c_cvname = lp->key; |
315 |
+ |
c_cvertex = (C_VERTEX *)lp->data; |
316 |
|
if (ac == 2) { /* reestablish previous context */ |
317 |
< |
if (lp->data == NULL) |
317 |
> |
if (c_cvertex == NULL) |
318 |
|
return(MG_EUNDEF); |
287 |
– |
c_cvertex = (C_VERTEX *)lp->data; |
319 |
|
return(MG_OK); |
320 |
|
} |
321 |
|
if (av[2][0] != '=' || av[2][1]) |
322 |
|
return(MG_ETYPE); |
323 |
< |
if (lp->key == NULL) { /* create new vertex context */ |
323 |
> |
if (c_cvertex == NULL) { /* create new vertex context */ |
324 |
|
lp->key = (char *)malloc(strlen(av[1])+1); |
325 |
|
if (lp->key == NULL) |
326 |
|
return(MG_EMEM); |
328 |
|
lp->data = (char *)malloc(sizeof(C_VERTEX)); |
329 |
|
if (lp->data == NULL) |
330 |
|
return(MG_EMEM); |
331 |
+ |
c_cvname = lp->key; |
332 |
+ |
c_cvertex = (C_VERTEX *)lp->data; |
333 |
|
} |
334 |
< |
c_cvertex = (C_VERTEX *)lp->data; |
334 |
> |
i = c_cvertex->clock; |
335 |
|
if (ac == 3) { /* use default template */ |
336 |
|
*c_cvertex = c_dfvertex; |
337 |
+ |
c_cvertex->clock = i + 1; |
338 |
|
return(MG_OK); |
339 |
|
} |
340 |
|
lp = lu_find(&vtx_tab, av[3]); /* lookup template */ |
343 |
|
if (lp->data == NULL) |
344 |
|
return(MG_EUNDEF); |
345 |
|
*c_cvertex = *(C_VERTEX *)lp->data; |
346 |
< |
if (ac > 4) |
313 |
< |
return(MG_EARGC); |
346 |
> |
c_cvertex->clock = i + 1; |
347 |
|
return(MG_OK); |
348 |
|
case MG_E_POINT: /* set point */ |
349 |
|
if (ac != 4) |
353 |
|
c_cvertex->p[0] = atof(av[1]); |
354 |
|
c_cvertex->p[1] = atof(av[2]); |
355 |
|
c_cvertex->p[2] = atof(av[3]); |
356 |
+ |
c_cvertex->clock++; |
357 |
|
return(MG_OK); |
358 |
|
case MG_E_NORMAL: /* set normal */ |
359 |
|
if (ac != 4) |
364 |
|
c_cvertex->n[1] = atof(av[2]); |
365 |
|
c_cvertex->n[2] = atof(av[3]); |
366 |
|
(void)normalize(c_cvertex->n); |
367 |
+ |
c_cvertex->clock++; |
368 |
|
return(MG_OK); |
369 |
|
} |
370 |
|
return(MG_EUNK); |
386 |
|
} |
387 |
|
|
388 |
|
|
389 |
+ |
C_MATERIAL * |
390 |
+ |
c_getmaterial(name) /* get a named material */ |
391 |
+ |
char *name; |
392 |
+ |
{ |
393 |
+ |
register LUENT *lp; |
394 |
+ |
|
395 |
+ |
if ((lp = lu_find(&mat_tab, name)) == NULL) |
396 |
+ |
return(NULL); |
397 |
+ |
return((C_MATERIAL *)lp->data); |
398 |
+ |
} |
399 |
+ |
|
400 |
+ |
|
401 |
|
C_VERTEX * |
402 |
|
c_getvert(name) /* get a named vertex */ |
403 |
|
char *name; |
410 |
|
} |
411 |
|
|
412 |
|
|
413 |
+ |
C_COLOR * |
414 |
+ |
c_getcolor(name) /* get a named color */ |
415 |
+ |
char *name; |
416 |
+ |
{ |
417 |
+ |
register LUENT *lp; |
418 |
+ |
|
419 |
+ |
if ((lp = lu_find(&clr_tab, name)) == NULL) |
420 |
+ |
return(NULL); |
421 |
+ |
return((C_COLOR *)lp->data); |
422 |
+ |
} |
423 |
+ |
|
424 |
+ |
|
425 |
|
int |
426 |
|
c_isgrey(clr) /* check if color is grey */ |
427 |
|
register C_COLOR *clr; |
428 |
|
{ |
429 |
< |
if (!clr->flags) |
429 |
> |
if (!(clr->flags & (C_CSXY|C_CSSPEC))) |
430 |
|
return(1); /* no settings == grey */ |
431 |
|
c_ccvt(clr, C_CSXY); |
432 |
|
return(clr->cx >= .323 && clr->cx <= .343 && |
444 |
|
|
445 |
|
if (clr->flags & fl) /* already done */ |
446 |
|
return; |
447 |
< |
if (!(clr->flags & (C_CSXY|C_CSSPEC))) /* nothing set */ |
447 |
> |
if (!(clr->flags & (C_CSXY|C_CSSPEC))) /* nothing set! */ |
448 |
|
*clr = c_dfcolor; |
449 |
|
else if (fl & C_CSXY) { /* cspec -> cxy */ |
450 |
|
x = y = z = 0.; |
524 |
|
clr->ssum += clr->ssamp[i]; |
525 |
|
} |
526 |
|
clr->flags = C_CDSPEC|C_CSSPEC; |
527 |
+ |
clr->clock++; |
528 |
|
free((MEM_PTR)va); |
529 |
|
return(MG_OK); |
530 |
|
} |