11 |
|
/* Entities (order doesn't really matter) */ |
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 |
14 |
> |
#define MG_E_CCT 2 |
15 |
> |
#define MG_E_CONE 3 |
16 |
> |
#define MG_E_CMIX 4 |
17 |
> |
#define MG_E_CSPEC 5 |
18 |
> |
#define MG_E_CXY 6 |
19 |
> |
#define MG_E_CYL 7 |
20 |
> |
#define MG_E_ED 8 |
21 |
> |
#define MG_E_FACE 9 |
22 |
> |
#define MG_E_INCLUDE 10 |
23 |
> |
#define MG_E_IES 11 |
24 |
> |
#define MG_E_MATERIAL 12 |
25 |
> |
#define MG_E_NORMAL 13 |
26 |
> |
#define MG_E_OBJECT 14 |
27 |
> |
#define MG_E_POINT 15 |
28 |
> |
#define MG_E_PRISM 16 |
29 |
> |
#define MG_E_RD 17 |
30 |
> |
#define MG_E_RING 18 |
31 |
> |
#define MG_E_RS 19 |
32 |
> |
#define MG_E_SIDES 20 |
33 |
> |
#define MG_E_SPH 21 |
34 |
> |
#define MG_E_TD 22 |
35 |
> |
#define MG_E_TORUS 23 |
36 |
> |
#define MG_E_TS 24 |
37 |
> |
#define MG_E_VERTEX 25 |
38 |
> |
#define MG_E_XF 26 |
39 |
|
|
40 |
< |
#define MG_NENTITIES 22 |
40 |
> |
#define MG_NENTITIES 27 |
41 |
|
|
42 |
< |
#define MG_NAMELIST {"#","c","cone","cxy","cyl","ed","f","i","ies",\ |
43 |
< |
"m","n","o","p","rd","ring","rs","sph","td","torus","ts","v","xf"} |
42 |
> |
#define MG_NAMELIST {"#","c","cct","cone","cmix","cspec","cxy","cyl","ed",\ |
43 |
> |
"f","i","ies","m","n","o","p","prism","rd","ring",\ |
44 |
> |
"rs","sides","sph","td","torus","ts","v","xf"} |
45 |
|
|
46 |
|
#define MG_MAXELEN 6 |
47 |
|
|
66 |
|
#define MG_EINCL 7 /* error in included file */ |
67 |
|
#define MG_EMEM 8 /* out of memory */ |
68 |
|
#define MG_ESEEK 9 /* file seek error */ |
69 |
+ |
#define MG_EBADMAT 10 /* bad material specification */ |
70 |
|
|
71 |
< |
#define MG_NERRS 10 |
71 |
> |
#define MG_NERRS 11 |
72 |
|
|
73 |
|
extern char *mg_err[MG_NERRS]; |
74 |
|
|
81 |
|
* To read from standard input, use NULL as the file name. |
82 |
|
* For additional control over error reporting and file management, |
83 |
|
* use mg_open, mg_read, mg_parse and mg_close instead of mg_load. |
84 |
+ |
* To pass an entity of your own construction to the parser, use |
85 |
+ |
* the mg_handle function rather than the mg_ehand routines directly. |
86 |
+ |
* (The first argument to mg_handle is the entity #, or -1.) |
87 |
|
* To free any data structures and clear the parser, use mg_clear. |
88 |
< |
* If there is an error, mg_load, mg_open, mg_parse, and mg_rewind |
89 |
< |
* will return an error from the list above. In addition, mg_load |
90 |
< |
* will report the error to stderr. The mg_read routine returns 0 |
91 |
< |
* when the end of file has been reached. |
88 |
> |
* If there is an error, mg_load, mg_open, mg_parse, mg_handle and |
89 |
> |
* mg_rewind will return an error from the list above. In addition, |
90 |
> |
* mg_load will report the error to stderr. The mg_read routine |
91 |
> |
* returns 0 when the end of file has been reached. |
92 |
|
*/ |
93 |
|
|
94 |
< |
#define MG_MAXLINE 512 /* maximum input line length */ |
94 |
> |
#define MG_MAXLINE 4096 /* maximum input line length */ |
95 |
|
#define MG_MAXARGC (MG_MAXLINE/4) /* maximum argument count */ |
96 |
|
|
97 |
|
typedef struct mg_fctxt { |
98 |
< |
char *fname; /* file name */ |
98 |
> |
char fname[96]; /* file name */ |
99 |
|
FILE *fp; /* stream pointer */ |
100 |
+ |
int fid; /* unique file context id */ |
101 |
|
char inpline[MG_MAXLINE]; /* input line */ |
102 |
|
int lineno; /* line number */ |
103 |
|
struct mg_fctxt *prev; /* previous context */ |
104 |
|
} MG_FCTXT; |
105 |
|
|
106 |
+ |
typedef struct { |
107 |
+ |
int fid; /* file this position is for */ |
108 |
+ |
int lineno; /* line number in file */ |
109 |
+ |
long offset; /* offset from beginning */ |
110 |
+ |
} MG_FPOS; |
111 |
+ |
|
112 |
|
extern MG_FCTXT *mg_file; /* current file context */ |
113 |
|
|
114 |
|
#ifdef NOPROTO |
117 |
|
extern int mg_open(); /* open new input file */ |
118 |
|
extern int mg_read(); /* read next line */ |
119 |
|
extern int mg_parse(); /* parse current line */ |
120 |
< |
extern int mg_rewind(); /* rewind input file */ |
120 |
> |
extern void mg_fgetpos(); /* get position on input file */ |
121 |
> |
extern int mg_fgoto(); /* go to position on input file */ |
122 |
|
extern void mg_close(); /* close input file */ |
123 |
|
extern void mg_clear(); /* clear parser */ |
124 |
< |
extern int mg_iterate(); |
124 |
> |
extern int mg_handle(); /* handle an entity */ |
125 |
|
#else |
126 |
|
extern void mg_init(void); /* fill in mg_ehand array */ |
127 |
|
extern int mg_load(char *); /* parse a file */ |
128 |
|
extern int mg_open(MG_FCTXT *, char *); /* open new input file */ |
129 |
|
extern int mg_read(void); /* read next line */ |
130 |
|
extern int mg_parse(void); /* parse current line */ |
131 |
< |
extern int mg_rewind(void); /* rewind input file */ |
131 |
> |
extern void mg_fgetpos(MG_FPOS *); /* get position on input file */ |
132 |
> |
extern int mg_fgoto(MG_FPOS *); /* go to position on input file */ |
133 |
|
extern void mg_close(void); /* close input file */ |
134 |
|
extern void mg_clear(void); /* clear parser */ |
135 |
< |
extern int mg_iterate(int, char **, int (*)(void)); |
135 |
> |
extern int mg_handle(int, int, char **); /* handle an entity */ |
136 |
|
#endif |
137 |
|
|
138 |
|
#ifndef MG_NQCD |
159 |
|
* Definitions for 3-d vector manipulation functions |
160 |
|
*/ |
161 |
|
|
162 |
< |
typedef double FVECT[3]; |
162 |
> |
#ifdef SMLFLT |
163 |
> |
#define FLOAT float |
164 |
> |
#define FTINY (1e-3) |
165 |
> |
#else |
166 |
> |
#define FLOAT double |
167 |
> |
#define FTINY (1e-6) |
168 |
> |
#endif |
169 |
> |
#define FHUGE (1e10) |
170 |
|
|
171 |
+ |
typedef FLOAT FVECT[3]; |
172 |
+ |
|
173 |
+ |
#define VCOPY(v1,v2) ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2]) |
174 |
+ |
#define DOT(v1,v2) ((v1)[0]*(v2)[0]+(v1)[1]*(v2)[1]+(v1)[2]*(v2)[2]) |
175 |
+ |
#define VSUM(vr,v1,v2,f) ((vr)[0]=(v1)[0]+(f)*(v2)[0], \ |
176 |
+ |
(vr)[1]=(v1)[1]+(f)*(v2)[1], \ |
177 |
+ |
(vr)[2]=(v1)[2]+(f)*(v2)[2]) |
178 |
+ |
|
179 |
+ |
#define is0vect(v) (DOT(v,v) <= FTINY*FTINY) |
180 |
+ |
|
181 |
+ |
#define round0(x) if (x <= FTINY && x >= -FTINY) x = 0 |
182 |
+ |
|
183 |
|
#ifdef NOPROTO |
184 |
|
extern double normalize(); /* normalize a vector */ |
185 |
|
#else |
191 |
|
* (materials, colors, vectors) |
192 |
|
*/ |
193 |
|
|
194 |
+ |
#define C_CMINWL 380 /* minimum wavelength */ |
195 |
+ |
#define C_CMAXWL 780 /* maximum wavelength */ |
196 |
+ |
#define C_CNSS 41 /* number of spectral samples */ |
197 |
+ |
#define C_CWLI ((C_CMAXWL-C_CMINWL)/(C_CNSS-1)) |
198 |
+ |
#define C_CMAXV 10000 /* nominal maximum sample value */ |
199 |
+ |
#define C_CLPWM (683./C_CMAXV) /* peak lumens/watt multiplier */ |
200 |
+ |
|
201 |
+ |
#define C_CSSPEC 01 /* flag if spectrum is set */ |
202 |
+ |
#define C_CDSPEC 02 /* flag if defined w/ spectrum */ |
203 |
+ |
#define C_CSXY 04 /* flag if xy is set */ |
204 |
+ |
#define C_CDXY 010 /* flag if defined w/ xy */ |
205 |
+ |
#define C_CSEFF 020 /* flag if efficacy set */ |
206 |
+ |
|
207 |
|
typedef struct { |
208 |
< |
double cx, cy; /* XY chromaticity coordinates */ |
209 |
< |
} C_COLOR; /* color context */ |
208 |
> |
int clock; /* incremented each change */ |
209 |
> |
short flags; /* what's been set */ |
210 |
> |
short ssamp[C_CNSS]; /* spectral samples, min wl to max */ |
211 |
> |
long ssum; /* straight sum of spectral values */ |
212 |
> |
float cx, cy; /* xy chromaticity value */ |
213 |
> |
float eff; /* efficacy (lumens/watt) */ |
214 |
> |
} C_COLOR; |
215 |
|
|
216 |
+ |
#define C_DEFCOLOR { 1, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\ |
217 |
+ |
{C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
218 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
219 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
220 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
221 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
222 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
223 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV},\ |
224 |
+ |
(long)C_CNSS*C_CMAXV, 1./3., 1./3., 178.006 } |
225 |
+ |
|
226 |
+ |
#define c_cval(c,l) ((double)(c)->ssamp[((l)-C_MINWL)/C_CWLI] / (c)->ssum) |
227 |
+ |
|
228 |
|
typedef struct { |
229 |
< |
double rd; /* diffuse reflectance */ |
229 |
> |
int clock; /* incremented each change -- resettable */ |
230 |
> |
int sided; /* 1 if surface is 1-sided, 0 for 2-sided */ |
231 |
> |
float rd; /* diffuse reflectance */ |
232 |
|
C_COLOR rd_c; /* diffuse reflectance color */ |
233 |
< |
double td; /* diffuse transmittance */ |
233 |
> |
float td; /* diffuse transmittance */ |
234 |
|
C_COLOR td_c; /* diffuse transmittance color */ |
235 |
< |
double ed; /* diffuse emittance */ |
235 |
> |
float ed; /* diffuse emittance */ |
236 |
|
C_COLOR ed_c; /* diffuse emittance color */ |
237 |
< |
double rs; /* specular reflectance */ |
237 |
> |
float rs; /* specular reflectance */ |
238 |
|
C_COLOR rs_c; /* specular reflectance color */ |
239 |
< |
double rs_a; /* specular reflectance roughness */ |
240 |
< |
double ts; /* specular transmittance */ |
239 |
> |
float rs_a; /* specular reflectance roughness */ |
240 |
> |
float ts; /* specular transmittance */ |
241 |
|
C_COLOR ts_c; /* specular transmittance color */ |
242 |
< |
double ts_a; /* specular transmittance roughness */ |
242 |
> |
float ts_a; /* specular transmittance roughness */ |
243 |
|
} C_MATERIAL; /* material context */ |
244 |
|
|
245 |
|
typedef struct { |
246 |
+ |
int clock; /* incremented each change -- resettable */ |
247 |
|
FVECT p, n; /* point and normal */ |
248 |
|
} C_VERTEX; /* vertex context */ |
249 |
|
|
250 |
< |
#define C_DEFCOLOR {.333,.333} |
251 |
< |
#define C_DEFMATERIAL {0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ |
252 |
< |
0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
182 |
< |
#define C_DEFVERTEX {{0.,0.,0.},{0.,0.,0.}} |
250 |
> |
#define C_DEFMATERIAL {1,0,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ |
251 |
> |
0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
252 |
> |
#define C_DEFVERTEX {1,{0.,0.,0.},{0.,0.,0.}} |
253 |
|
|
254 |
|
extern C_COLOR *c_ccolor; /* the current color */ |
255 |
+ |
extern char *c_ccname; /* current color name */ |
256 |
|
extern C_MATERIAL *c_cmaterial; /* the current material */ |
257 |
+ |
extern char *c_cmname; /* current material name */ |
258 |
|
extern C_VERTEX *c_cvertex; /* the current vertex */ |
259 |
+ |
extern char *c_cvname; /* current vertex name */ |
260 |
|
|
261 |
|
#ifdef NOPROTO |
262 |
|
extern int c_hcolor(); /* handle color entity */ |
263 |
|
extern int c_hmaterial(); /* handle material entity */ |
264 |
|
extern int c_hvertex(); /* handle vertex entity */ |
265 |
|
extern void c_clearall(); /* clear context tables */ |
266 |
+ |
extern C_MATERIAL *c_getmaterial(); /* get a named material */ |
267 |
|
extern C_VERTEX *c_getvert(); /* get a named vertex */ |
268 |
+ |
extern C_COLOR *c_getcolor(); /* get a named color */ |
269 |
+ |
extern void c_ccvt(); /* fix color representation */ |
270 |
+ |
extern int c_isgrey(); /* check if color is grey */ |
271 |
|
#else |
272 |
|
extern int c_hcolor(int, char **); /* handle color entity */ |
273 |
|
extern int c_hmaterial(int, char **); /* handle material entity */ |
274 |
|
extern int c_hvertex(int, char **); /* handle vertex entity */ |
275 |
|
extern void c_clearall(void); /* clear context tables */ |
276 |
+ |
extern C_MATERIAL *c_getmaterial(char *); /* get a named material */ |
277 |
|
extern C_VERTEX *c_getvert(char *); /* get a named vertex */ |
278 |
+ |
extern C_COLOR *c_getcolor(char *); /* get a named color */ |
279 |
+ |
extern void c_ccvt(C_COLOR *, int); /* fix color representation */ |
280 |
+ |
extern int c_isgrey(C_COLOR *); /* check if color is grey */ |
281 |
|
#endif |
282 |
|
|
283 |
|
/************************************************************************* |
289 |
|
|
290 |
|
#ifdef NOPROTO |
291 |
|
extern int obj_handler(); /* handle an object entity */ |
292 |
+ |
extern void obj_clear(); /* clear object stack */ |
293 |
|
#else |
294 |
|
extern int obj_handler(int, char **); /* handle an object entity */ |
295 |
+ |
extern void obj_clear(void); /* clear object stack */ |
296 |
|
#endif |
297 |
|
|
298 |
|
/************************************************************************** |
299 |
|
* Definitions for hierarchical transformation handler |
300 |
|
*/ |
301 |
|
|
302 |
< |
typedef double MAT4[4][4]; |
302 |
> |
typedef FLOAT MAT4[4][4]; |
303 |
|
|
304 |
|
#ifdef BSD |
305 |
|
#define copymat4(m4a,m4b) bcopy((char *)m4b,(char *)m4a,sizeof(MAT4)) |
306 |
|
#else |
307 |
|
#define copymat4(m4a,m4b) (void)memcpy((char *)m4a,(char *)m4b,sizeof(MAT4)) |
225 |
– |
extern char *memcpy(); |
308 |
|
#endif |
309 |
|
|
310 |
|
#define MAT4IDENT { {1.,0.,0.,0.}, {0.,1.,0.,0.}, \ |
316 |
|
|
317 |
|
/* regular transformation */ |
318 |
|
typedef struct { |
319 |
< |
MAT4 xfm; /* transform matrix */ |
320 |
< |
double sca; /* scalefactor */ |
319 |
> |
MAT4 xfm; /* transform matrix */ |
320 |
> |
FLOAT sca; /* scalefactor */ |
321 |
|
} XF; |
322 |
|
|
323 |
|
#define identxf(xp) (void)(setident4((xp)->xfm),(xp)->sca=1.0) |
324 |
|
|
325 |
+ |
#define XF_MAXDIM 8 /* maximum array dimensions */ |
326 |
+ |
|
327 |
+ |
struct xf_array { |
328 |
+ |
MG_FPOS spos; /* starting position on input */ |
329 |
+ |
int ndim; /* number of array dimensions */ |
330 |
+ |
struct { |
331 |
+ |
short i, n; /* current count and maximum */ |
332 |
+ |
char arg[8]; /* string argument value */ |
333 |
+ |
} aarg[XF_MAXDIM]; |
334 |
+ |
}; |
335 |
+ |
|
336 |
|
typedef struct xf_spec { |
337 |
< |
short xac; /* transform argument count */ |
338 |
< |
short xav0; /* zeroeth argument in xf_argv array */ |
339 |
< |
XF xf; /* cumulative transformation */ |
340 |
< |
struct xf_spec *prev; /* previous transformation context */ |
341 |
< |
} XF_SPEC; |
337 |
> |
long xid; /* unique transform id */ |
338 |
> |
short xav0; /* zeroeth argument in xf_argv array */ |
339 |
> |
short xac; /* transform argument count */ |
340 |
> |
short rev; /* boolean true if vertices reversed */ |
341 |
> |
XF xf; /* cumulative transformation */ |
342 |
> |
struct xf_array *xarr; /* transformation array pointer */ |
343 |
> |
struct xf_spec *prev; /* previous transformation context */ |
344 |
> |
} XF_SPEC; /* followed by argument buffer */ |
345 |
|
|
346 |
|
extern int xf_argc; /* total # transform args. */ |
347 |
|
extern char **xf_argv; /* transform arguments */ |
366 |
|
extern void xf_xfmvect(); /* transform vector */ |
367 |
|
extern void xf_rotvect(); /* rotate vector */ |
368 |
|
extern double xf_scale(); /* scale a value */ |
369 |
+ |
extern void xf_clear(); /* clear xf stack */ |
370 |
|
|
371 |
|
/* The following are support routines you probably won't call directly */ |
372 |
|
|
377 |
|
|
378 |
|
#else |
379 |
|
|
380 |
< |
extern int xf_handler(); /* handle xf entity */ |
381 |
< |
extern void xf_xfmpoint(); /* transform point */ |
382 |
< |
extern void xf_xfmvect(); /* transform vector */ |
383 |
< |
extern void xf_rotvect(); /* rotate vector */ |
384 |
< |
extern double xf_scale(); /* scale a value */ |
380 |
> |
extern int xf_handler(int, char **); /* handle xf entity */ |
381 |
> |
extern void xf_xfmpoint(FVECT, FVECT); /* transform point */ |
382 |
> |
extern void xf_xfmvect(FVECT, FVECT); /* transform vector */ |
383 |
> |
extern void xf_rotvect(FVECT, FVECT); /* rotate vector */ |
384 |
> |
extern double xf_scale(double); /* scale a value */ |
385 |
> |
extern void xf_clear(void); /* clear xf stack */ |
386 |
|
|
387 |
|
/* The following are support routines you probably won't call directly */ |
388 |
|
|
389 |
|
extern void multmat4(MAT4, MAT4, MAT4); /* m4a = m4b X m4c */ |
390 |
|
extern void multv3(FVECT, FVECT, MAT4); /* v3a = v3b X m4 (vectors) */ |
391 |
|
extern void multp3(FVECT, FVECT, MAT4); /* p3a = p3b X m4 (points) */ |
392 |
< |
extern int xf(XF, int, char **); /* interpret transform spec. */ |
392 |
> |
extern int xf(XF *, int, char **); /* interpret transform spec. */ |
393 |
|
|
394 |
|
#endif |
395 |
|
|
414 |
|
extern MEM_PTR malloc(); |
415 |
|
extern MEM_PTR calloc(); |
416 |
|
extern MEM_PTR realloc(); |
417 |
+ |
extern void free(); |