12 |
|
#define MG_E_COMMENT 0 |
13 |
|
#define MG_E_COLOR 1 |
14 |
|
#define MG_E_CONE 2 |
15 |
< |
#define MG_E_CXY 3 |
16 |
< |
#define MG_E_CYL 4 |
17 |
< |
#define MG_E_ED 5 |
18 |
< |
#define MG_E_FACE 6 |
19 |
< |
#define MG_E_INCLUDE 7 |
20 |
< |
#define MG_E_IES 8 |
21 |
< |
#define MG_E_MATERIAL 9 |
22 |
< |
#define MG_E_NORMAL 10 |
23 |
< |
#define MG_E_OBJECT 11 |
24 |
< |
#define MG_E_POINT 12 |
25 |
< |
#define MG_E_RD 13 |
26 |
< |
#define MG_E_RING 14 |
27 |
< |
#define MG_E_RS 15 |
28 |
< |
#define MG_E_SPH 16 |
29 |
< |
#define MG_E_TD 17 |
30 |
< |
#define MG_E_TORUS 18 |
31 |
< |
#define MG_E_TS 19 |
32 |
< |
#define MG_E_VERTEX 20 |
33 |
< |
#define MG_E_XF 21 |
15 |
> |
#define MG_E_CMIX 3 |
16 |
> |
#define MG_E_CXY 4 |
17 |
> |
#define MG_E_CSPEC 5 |
18 |
> |
#define MG_E_CYL 6 |
19 |
> |
#define MG_E_ED 7 |
20 |
> |
#define MG_E_FACE 8 |
21 |
> |
#define MG_E_INCLUDE 9 |
22 |
> |
#define MG_E_IES 10 |
23 |
> |
#define MG_E_MATERIAL 11 |
24 |
> |
#define MG_E_NORMAL 12 |
25 |
> |
#define MG_E_OBJECT 13 |
26 |
> |
#define MG_E_POINT 14 |
27 |
> |
#define MG_E_PRISM 15 |
28 |
> |
#define MG_E_RD 16 |
29 |
> |
#define MG_E_RING 17 |
30 |
> |
#define MG_E_RS 18 |
31 |
> |
#define MG_E_SPH 19 |
32 |
> |
#define MG_E_TD 20 |
33 |
> |
#define MG_E_TORUS 21 |
34 |
> |
#define MG_E_TS 22 |
35 |
> |
#define MG_E_VERTEX 23 |
36 |
> |
#define MG_E_XF 24 |
37 |
|
|
38 |
< |
#define MG_NENTITIES 22 |
38 |
> |
#define MG_NENTITIES 25 |
39 |
|
|
40 |
< |
#define MG_NAMELIST {"#","c","cone","cxy","cyl","ed","f","i","ies",\ |
41 |
< |
"m","n","o","p","rd","ring","rs","sph","td","torus","ts","v","xf"} |
40 |
> |
#define MG_NAMELIST {"#","c","cone","cmix","cspec","cxy","cyl","ed","f",\ |
41 |
> |
"i","ies","m","n","o","p","prism","rd","ring","rs",\ |
42 |
> |
"sph","td","torus","ts","v","xf"} |
43 |
|
|
44 |
|
#define MG_MAXELEN 6 |
45 |
|
|
64 |
|
#define MG_EINCL 7 /* error in included file */ |
65 |
|
#define MG_EMEM 8 /* out of memory */ |
66 |
|
#define MG_ESEEK 9 /* file seek error */ |
67 |
+ |
#define MG_EBADMAT 10 /* bad material specification */ |
68 |
|
|
69 |
< |
#define MG_NERRS 10 |
69 |
> |
#define MG_NERRS 11 |
70 |
|
|
71 |
|
extern char *mg_err[MG_NERRS]; |
72 |
|
|
145 |
|
* Definitions for 3-d vector manipulation functions |
146 |
|
*/ |
147 |
|
|
148 |
< |
typedef double FVECT[3]; |
148 |
> |
#ifdef SMLFLT |
149 |
> |
#define FLOAT float |
150 |
> |
#define FTINY (1e-3) |
151 |
> |
#else |
152 |
> |
#define FLOAT double |
153 |
> |
#define FTINY (1e-6) |
154 |
> |
#endif |
155 |
> |
#define FHUGE (1e10) |
156 |
|
|
157 |
+ |
typedef FLOAT FVECT[3]; |
158 |
+ |
|
159 |
+ |
#define VCOPY(v1,v2) ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2]) |
160 |
+ |
#define DOT(v1,v2) ((v1)[0]*(v2)[0]+(v1)[1]*(v2)[1]+(v1)[2]*(v2)[2]) |
161 |
+ |
#define VSUM(vr,v1,v2,f) ((vr)[0]=(v1)[0]+(f)*(v2)[0], \ |
162 |
+ |
(vr)[1]=(v1)[1]+(f)*(v2)[1], \ |
163 |
+ |
(vr)[2]=(v1)[2]+(f)*(v2)[2]) |
164 |
+ |
|
165 |
+ |
#define is0vect(v) (DOT(v,v) < FTINY*FTINY) |
166 |
+ |
|
167 |
+ |
#define round0(x) if (x <= FTINY && x >= -FTINY) x = 0 |
168 |
+ |
|
169 |
|
#ifdef NOPROTO |
170 |
|
extern double normalize(); /* normalize a vector */ |
171 |
|
#else |
177 |
|
* (materials, colors, vectors) |
178 |
|
*/ |
179 |
|
|
180 |
+ |
/* The following structure will change when we add spectral data support */ |
181 |
|
typedef struct { |
182 |
< |
double cx, cy; /* XY chromaticity coordinates */ |
182 |
> |
float cx, cy; /* XY chromaticity coordinates */ |
183 |
|
} C_COLOR; /* color context */ |
184 |
|
|
185 |
+ |
#ifdef later |
186 |
+ |
|
187 |
+ |
#define C_CMAXWL 780 /* maximum wavelength */ |
188 |
+ |
#define C_CMINWL 380 /* minimum wavelength */ |
189 |
+ |
#define C_CNSS 41 /* number of spectral samples */ |
190 |
+ |
#define C_WLINC ((C_MAXWL-C_MINWL)/(C_NSS-1)) /* 10 nm increment */ |
191 |
+ |
#define C_CMAXV 10000 /* nominal maximum sample value */ |
192 |
+ |
|
193 |
+ |
#define C_CXY 1 /* flag if has xy chromaticity */ |
194 |
+ |
#define C_CSPEC 2 /* flag if has spectrum */ |
195 |
+ |
|
196 |
|
typedef struct { |
197 |
< |
double rd; /* diffuse reflectance */ |
197 |
> |
short flags; /* what's been set */ |
198 |
> |
float cx, cy; /* xy chromaticity value */ |
199 |
> |
short ssamp[C_CNSS]; /* spectral samples, min wl to max */ |
200 |
> |
long ssum; /* straight sum of spectral values */ |
201 |
> |
} C_COLOR; |
202 |
> |
|
203 |
> |
#define C_DEFCOLOR { C_CXY|C_CSPEC, 1./3., 1./3., |
204 |
> |
{C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
205 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
206 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
207 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
208 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
209 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
210 |
> |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV},\ |
211 |
> |
(long)C_CNSS*C_MAXV } |
212 |
> |
|
213 |
> |
#define C_CIEX { C_CXY|C_CSPEC, ???, ???, |
214 |
> |
{14,42,143,435,1344,2839,3483,3362,2908,1954,956,\ |
215 |
> |
320,49,93,633,1655,2904,4334,5945,7621,9163,10263,\ |
216 |
> |
10622,10026,8544,6424,4479,2835,1649,874,468,227,\ |
217 |
> |
114,58,29,14,7,3,2,1,0}, 106836L } |
218 |
> |
|
219 |
> |
#define C_CIEY { C_CXY|C_CSPEC, ???, ???, |
220 |
> |
{0,1,4,12,40,116,230,380,600,910,1390,2080,3230,\ |
221 |
> |
5030,7100,8620,9540,9950,9950,9520,8700,7570,6310,\ |
222 |
> |
5030,3810,2650,1750,1070,610,320,170,82,41,21,10,\ |
223 |
> |
5,2,1,1,0,0}, 106856L } |
224 |
> |
|
225 |
> |
#define C_CIEZ { C_CXY|C_CSPEC, ???, ???, |
226 |
> |
{65,201,679,2074,6456,13856,17471,17721,16692,\ |
227 |
> |
12876,8130,4652,2720,1582,782,422,203,87,39,21,17,\ |
228 |
> |
11,8,3,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, 106770L } |
229 |
> |
|
230 |
> |
#define c_cval(c,l) ((double)(c)->ssamp[((l)-C_MINWL)/C_WLINC] / (c)->sum) |
231 |
> |
|
232 |
> |
#endif |
233 |
> |
|
234 |
> |
typedef struct { |
235 |
> |
char *name; /* material name */ |
236 |
> |
int clock; /* incremented each change -- resettable */ |
237 |
> |
float rd; /* diffuse reflectance */ |
238 |
|
C_COLOR rd_c; /* diffuse reflectance color */ |
239 |
< |
double td; /* diffuse transmittance */ |
239 |
> |
float td; /* diffuse transmittance */ |
240 |
|
C_COLOR td_c; /* diffuse transmittance color */ |
241 |
< |
double ed; /* diffuse emittance */ |
241 |
> |
float ed; /* diffuse emittance */ |
242 |
|
C_COLOR ed_c; /* diffuse emittance color */ |
243 |
< |
double rs; /* specular reflectance */ |
243 |
> |
float rs; /* specular reflectance */ |
244 |
|
C_COLOR rs_c; /* specular reflectance color */ |
245 |
< |
double rs_a; /* specular reflectance roughness */ |
246 |
< |
double ts; /* specular transmittance */ |
245 |
> |
float rs_a; /* specular reflectance roughness */ |
246 |
> |
float ts; /* specular transmittance */ |
247 |
|
C_COLOR ts_c; /* specular transmittance color */ |
248 |
< |
double ts_a; /* specular transmittance roughness */ |
248 |
> |
float ts_a; /* specular transmittance roughness */ |
249 |
|
} C_MATERIAL; /* material context */ |
250 |
|
|
251 |
|
typedef struct { |
252 |
|
FVECT p, n; /* point and normal */ |
253 |
|
} C_VERTEX; /* vertex context */ |
254 |
|
|
255 |
+ |
#define isgrey(cxy) ((cxy)->cx > .32 && (cxy)->cx < .34 && \ |
256 |
+ |
(cxy)->cy > .32 && (cxy)->cy < .34) |
257 |
+ |
|
258 |
|
#define C_DEFCOLOR {.333,.333} |
259 |
< |
#define C_DEFMATERIAL {0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ |
260 |
< |
0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
259 |
> |
#define C_DEFMATERIAL {NULL,1,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ |
260 |
> |
0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
261 |
|
#define C_DEFVERTEX {{0.,0.,0.},{0.,0.,0.}} |
262 |
|
|
263 |
|
extern C_COLOR *c_ccolor; /* the current color */ |
287 |
|
|
288 |
|
#ifdef NOPROTO |
289 |
|
extern int obj_handler(); /* handle an object entity */ |
290 |
+ |
extern void obj_clear(); /* clear object stack */ |
291 |
|
#else |
292 |
|
extern int obj_handler(int, char **); /* handle an object entity */ |
293 |
+ |
extern void obj_clear(void); /* clear object stack */ |
294 |
|
#endif |
295 |
|
|
296 |
|
/************************************************************************** |
297 |
|
* Definitions for hierarchical transformation handler |
298 |
|
*/ |
299 |
|
|
300 |
< |
typedef double MAT4[4][4]; |
300 |
> |
typedef FLOAT MAT4[4][4]; |
301 |
|
|
302 |
|
#ifdef BSD |
303 |
|
#define copymat4(m4a,m4b) bcopy((char *)m4b,(char *)m4a,sizeof(MAT4)) |
316 |
|
/* regular transformation */ |
317 |
|
typedef struct { |
318 |
|
MAT4 xfm; /* transform matrix */ |
319 |
< |
double sca; /* scalefactor */ |
319 |
> |
FLOAT sca; /* scalefactor */ |
320 |
|
} XF; |
321 |
|
|
322 |
|
#define identxf(xp) (void)(setident4((xp)->xfm),(xp)->sca=1.0) |
351 |
|
extern void xf_xfmvect(); /* transform vector */ |
352 |
|
extern void xf_rotvect(); /* rotate vector */ |
353 |
|
extern double xf_scale(); /* scale a value */ |
354 |
+ |
extern void xf_clear(); /* clear xf stack */ |
355 |
|
|
356 |
|
/* The following are support routines you probably won't call directly */ |
357 |
|
|
362 |
|
|
363 |
|
#else |
364 |
|
|
365 |
< |
extern int xf_handler(); /* handle xf entity */ |
366 |
< |
extern void xf_xfmpoint(); /* transform point */ |
367 |
< |
extern void xf_xfmvect(); /* transform vector */ |
368 |
< |
extern void xf_rotvect(); /* rotate vector */ |
369 |
< |
extern double xf_scale(); /* scale a value */ |
365 |
> |
extern int xf_handler(int, char **); /* handle xf entity */ |
366 |
> |
extern void xf_xfmpoint(FVECT, FVECT); /* transform point */ |
367 |
> |
extern void xf_xfmvect(FVECT, FVECT); /* transform vector */ |
368 |
> |
extern void xf_rotvect(FVECT, FVECT); /* rotate vector */ |
369 |
> |
extern double xf_scale(double); /* scale a value */ |
370 |
> |
extern void xf_clear(void); /* clear xf stack */ |
371 |
|
|
372 |
|
/* The following are support routines you probably won't call directly */ |
373 |
|
|
399 |
|
extern MEM_PTR malloc(); |
400 |
|
extern MEM_PTR calloc(); |
401 |
|
extern MEM_PTR realloc(); |
402 |
+ |
extern void free(); |