1 |
< |
/* Copyright (c) 1994 Regents of the University of California */ |
2 |
< |
|
3 |
< |
/* SCCSid "$SunId$ LBL" */ |
4 |
< |
|
1 |
> |
/* RCSid: $Id$ */ |
2 |
|
/* |
3 |
|
* Header file for MGF interpreter |
4 |
|
*/ |
5 |
|
|
6 |
< |
/* must include stdio.h before us */ |
6 |
> |
#ifndef MG_VMAJOR |
7 |
|
|
8 |
< |
/* 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 |
8 |
> |
/* must include stdio.h and stdlib.h before us */ |
9 |
|
|
10 |
< |
#define MG_NENTITIES 22 |
10 |
> |
#define MG_VMAJOR 2 /* major version number */ |
11 |
> |
#define MG_VMINOR 0 /* minor version number */ |
12 |
|
|
13 |
< |
#define MG_NAMELIST {"#","c","cone","cxy","cyl","ed","f","i","ies",\ |
14 |
< |
"m","n","o","p","rd","ring","rs","sph","td","torus","ts","v","xf"} |
13 |
> |
/* Entities (list is only appended, never modified) */ |
14 |
> |
#define MG_E_COMMENT 0 /* # */ |
15 |
> |
#define MG_E_COLOR 1 /* c */ |
16 |
> |
#define MG_E_CCT 2 /* cct */ |
17 |
> |
#define MG_E_CONE 3 /* cone */ |
18 |
> |
#define MG_E_CMIX 4 /* cmix */ |
19 |
> |
#define MG_E_CSPEC 5 /* cspec */ |
20 |
> |
#define MG_E_CXY 6 /* cxy */ |
21 |
> |
#define MG_E_CYL 7 /* cyl */ |
22 |
> |
#define MG_E_ED 8 /* ed */ |
23 |
> |
#define MG_E_FACE 9 /* f */ |
24 |
> |
#define MG_E_INCLUDE 10 /* i */ |
25 |
> |
#define MG_E_IES 11 /* ies */ |
26 |
> |
#define MG_E_IR 12 /* ir */ |
27 |
> |
#define MG_E_MATERIAL 13 /* m */ |
28 |
> |
#define MG_E_NORMAL 14 /* n */ |
29 |
> |
#define MG_E_OBJECT 15 /* o */ |
30 |
> |
#define MG_E_POINT 16 /* p */ |
31 |
> |
#define MG_E_PRISM 17 /* prism */ |
32 |
> |
#define MG_E_RD 18 /* rd */ |
33 |
> |
#define MG_E_RING 19 /* ring */ |
34 |
> |
#define MG_E_RS 20 /* rs */ |
35 |
> |
#define MG_E_SIDES 21 /* sides */ |
36 |
> |
#define MG_E_SPH 22 /* sph */ |
37 |
> |
#define MG_E_TD 23 /* td */ |
38 |
> |
#define MG_E_TORUS 24 /* torus */ |
39 |
> |
#define MG_E_TS 25 /* ts */ |
40 |
> |
#define MG_E_VERTEX 26 /* v */ |
41 |
> |
#define MG_E_XF 27 /* xf */ |
42 |
> |
/* end of Version 1 entities */ |
43 |
> |
#define MG_E_FACEH 28 /* fh */ |
44 |
> |
/* end of Version 2 entities */ |
45 |
|
|
46 |
+ |
#define MG_NENTITIES 29 /* total # entities */ |
47 |
+ |
|
48 |
+ |
#define MG_NELIST {28,29} /* entity count for version 1 and up */ |
49 |
+ |
|
50 |
+ |
#define MG_NAMELIST {"#","c","cct","cone","cmix","cspec","cxy","cyl","ed",\ |
51 |
+ |
"f","i","ies","ir","m","n","o","p","prism","rd",\ |
52 |
+ |
"ring","rs","sides","sph","td","torus","ts","v","xf",\ |
53 |
+ |
"fh"} |
54 |
+ |
|
55 |
|
#define MG_MAXELEN 6 |
56 |
|
|
57 |
|
extern char mg_ename[MG_NENTITIES][MG_MAXELEN]; |
58 |
|
|
59 |
< |
/* Handler routines for each entity */ |
45 |
< |
|
59 |
> |
/* Handler routines for each entity and unknown ones */ |
60 |
|
#ifdef NOPROTO |
61 |
|
extern int (*mg_ehand[MG_NENTITIES])(); |
62 |
+ |
extern int (*mg_uhand)(); |
63 |
+ |
extern int mg_defuhand(); |
64 |
|
#else |
65 |
|
extern int (*mg_ehand[MG_NENTITIES])(int argc, char **argv); |
66 |
+ |
extern int (*mg_uhand)(int argc, char **argv); |
67 |
+ |
extern int mg_defuhand(int, char **); |
68 |
|
#endif |
69 |
|
|
70 |
+ |
extern unsigned mg_nunknown; /* count of unknown entities */ |
71 |
+ |
|
72 |
|
/* Error codes */ |
73 |
|
#define MG_OK 0 /* normal return value */ |
74 |
|
#define MG_EUNK 1 /* unknown entity */ |
81 |
|
#define MG_EMEM 8 /* out of memory */ |
82 |
|
#define MG_ESEEK 9 /* file seek error */ |
83 |
|
#define MG_EBADMAT 10 /* bad material specification */ |
84 |
+ |
#define MG_ELINE 11 /* input line too long */ |
85 |
+ |
#define MG_ECNTXT 12 /* unmatched context close */ |
86 |
|
|
87 |
< |
#define MG_NERRS 11 |
87 |
> |
#define MG_NERRS 13 |
88 |
|
|
89 |
< |
extern char *mg_err[MG_NERRS]; |
89 |
> |
extern char *mg_err[MG_NERRS]; /* list of error messages */ |
90 |
|
|
91 |
|
/* |
92 |
|
* The general process for running the parser is to fill in the mg_ehand |
97 |
|
* To read from standard input, use NULL as the file name. |
98 |
|
* For additional control over error reporting and file management, |
99 |
|
* use mg_open, mg_read, mg_parse and mg_close instead of mg_load. |
100 |
+ |
* To pass an entity of your own construction to the parser, use |
101 |
+ |
* the mg_handle function rather than the mg_ehand routines directly. |
102 |
+ |
* (The first argument to mg_handle is the entity #, or -1.) |
103 |
|
* To free any data structures and clear the parser, use mg_clear. |
104 |
< |
* If there is an error, mg_load, mg_open, mg_parse, and mg_rewind |
105 |
< |
* will return an error from the list above. In addition, mg_load |
106 |
< |
* will report the error to stderr. The mg_read routine returns 0 |
107 |
< |
* when the end of file has been reached. |
104 |
> |
* If there is an error, mg_load, mg_open, mg_parse, mg_handle and |
105 |
> |
* mg_fgoto will return an error from the list above. In addition, |
106 |
> |
* mg_load will report the error to stderr. The mg_read routine |
107 |
> |
* returns 0 when the end of file has been reached. |
108 |
|
*/ |
109 |
|
|
110 |
< |
#define MG_MAXLINE 512 /* maximum input line length */ |
110 |
> |
#define MG_MAXLINE 4096 /* maximum input line length */ |
111 |
|
#define MG_MAXARGC (MG_MAXLINE/4) /* maximum argument count */ |
112 |
|
|
113 |
|
typedef struct mg_fctxt { |
114 |
< |
char *fname; /* file name */ |
114 |
> |
char fname[96]; /* file name */ |
115 |
|
FILE *fp; /* stream pointer */ |
116 |
+ |
int fid; /* unique file context id */ |
117 |
|
char inpline[MG_MAXLINE]; /* input line */ |
118 |
|
int lineno; /* line number */ |
119 |
|
struct mg_fctxt *prev; /* previous context */ |
120 |
|
} MG_FCTXT; |
121 |
|
|
122 |
+ |
typedef struct { |
123 |
+ |
int fid; /* file this position is for */ |
124 |
+ |
int lineno; /* line number in file */ |
125 |
+ |
long offset; /* offset from beginning */ |
126 |
+ |
} MG_FPOS; |
127 |
+ |
|
128 |
|
extern MG_FCTXT *mg_file; /* current file context */ |
129 |
|
|
130 |
|
#ifdef NOPROTO |
133 |
|
extern int mg_open(); /* open new input file */ |
134 |
|
extern int mg_read(); /* read next line */ |
135 |
|
extern int mg_parse(); /* parse current line */ |
136 |
< |
extern int mg_rewind(); /* rewind input file */ |
136 |
> |
extern void mg_fgetpos(); /* get position on input file */ |
137 |
> |
extern int mg_fgoto(); /* go to position on input file */ |
138 |
|
extern void mg_close(); /* close input file */ |
139 |
|
extern void mg_clear(); /* clear parser */ |
140 |
< |
extern int mg_iterate(); |
140 |
> |
extern int mg_handle(); /* handle an entity */ |
141 |
|
#else |
142 |
|
extern void mg_init(void); /* fill in mg_ehand array */ |
143 |
|
extern int mg_load(char *); /* parse a file */ |
144 |
|
extern int mg_open(MG_FCTXT *, char *); /* open new input file */ |
145 |
|
extern int mg_read(void); /* read next line */ |
146 |
|
extern int mg_parse(void); /* parse current line */ |
147 |
< |
extern int mg_rewind(void); /* rewind input file */ |
147 |
> |
extern void mg_fgetpos(MG_FPOS *); /* get position on input file */ |
148 |
> |
extern int mg_fgoto(MG_FPOS *); /* go to position on input file */ |
149 |
|
extern void mg_close(void); /* close input file */ |
150 |
|
extern void mg_clear(void); /* clear parser */ |
151 |
< |
extern int mg_iterate(int, char **, int (*)(void)); |
151 |
> |
extern int mg_handle(int, int, char **); /* handle an entity */ |
152 |
|
#endif |
153 |
|
|
154 |
|
#ifndef MG_NQCD |
164 |
|
#ifdef NOPROTO |
165 |
|
extern int mg_entity(); /* get entity number from its name */ |
166 |
|
extern int isint(); /* non-zero if integer format */ |
167 |
+ |
extern int isintd(); /* same with delimiter set */ |
168 |
|
extern int isflt(); /* non-zero if floating point format */ |
169 |
+ |
extern int isfltd(); /* same with delimiter set */ |
170 |
+ |
extern int isname(); /* non-zero if legal identifier name */ |
171 |
+ |
extern int badarg(); /* check argument format */ |
172 |
+ |
extern int e_include(); /* expand include entity */ |
173 |
+ |
extern int e_pipe(); /* expand piped command */ |
174 |
+ |
extern int e_sph(); /* expand sphere as other entities */ |
175 |
+ |
extern int e_torus(); /* expand torus as other entities */ |
176 |
+ |
extern int e_cyl(); /* expand cylinder as other entities */ |
177 |
+ |
extern int e_ring(); /* expand ring as other entities */ |
178 |
+ |
extern int e_cone(); /* expand cone as other entities */ |
179 |
+ |
extern int e_prism(); /* expand prism as other entities */ |
180 |
+ |
extern int e_faceh(); /* expand face w/ holes as face */ |
181 |
|
#else |
182 |
|
extern int mg_entity(char *); /* get entity number from its name */ |
183 |
|
extern int isint(char *); /* non-zero if integer format */ |
184 |
+ |
extern int isintd(char *, char *); /* same with delimiter set */ |
185 |
|
extern int isflt(char *); /* non-zero if floating point format */ |
186 |
+ |
extern int isfltd(char *, char *); /* same with delimiter set */ |
187 |
+ |
extern int isname(char *); /* non-zero if legal identifier name */ |
188 |
+ |
extern int badarg(int, char **, char *);/* check argument format */ |
189 |
+ |
extern int e_include(int, char **); /* expand include entity */ |
190 |
+ |
extern int e_pipe(int, char **); /* expand piped command */ |
191 |
+ |
extern int e_sph(int, char **); /* expand sphere as other entities */ |
192 |
+ |
extern int e_torus(int, char **); /* expand torus as other entities */ |
193 |
+ |
extern int e_cyl(int, char **); /* expand cylinder as other entities */ |
194 |
+ |
extern int e_ring(int, char **); /* expand ring as other entities */ |
195 |
+ |
extern int e_cone(int, char **); /* expand cone as other entities */ |
196 |
+ |
extern int e_prism(int, char **); /* expand prism as other entities */ |
197 |
+ |
extern int e_faceh(int, char **); /* expand face w/ holes as face */ |
198 |
|
#endif |
199 |
|
|
200 |
|
/************************************************************************ |
218 |
|
(vr)[1]=(v1)[1]+(f)*(v2)[1], \ |
219 |
|
(vr)[2]=(v1)[2]+(f)*(v2)[2]) |
220 |
|
|
221 |
< |
#define is0vect(v) (DOT(v,v) < FTINY*FTINY) |
221 |
> |
#define is0vect(v) (DOT(v,v) <= FTINY*FTINY) |
222 |
|
|
223 |
|
#define round0(x) if (x <= FTINY && x >= -FTINY) x = 0 |
224 |
|
|
226 |
|
extern double normalize(); /* normalize a vector */ |
227 |
|
#else |
228 |
|
extern double normalize(FVECT); /* normalize a vector */ |
229 |
+ |
extern void fcross(FVECT,FVECT,FVECT);/* cross product of two vectors */ |
230 |
|
#endif |
231 |
|
|
232 |
|
/************************************************************************ |
234 |
|
* (materials, colors, vectors) |
235 |
|
*/ |
236 |
|
|
237 |
+ |
#define C_CMINWL 380 /* minimum wavelength */ |
238 |
+ |
#define C_CMAXWL 780 /* maximum wavelength */ |
239 |
+ |
#define C_CNSS 41 /* number of spectral samples */ |
240 |
+ |
#define C_CWLI ((C_CMAXWL-C_CMINWL)/(C_CNSS-1)) |
241 |
+ |
#define C_CMAXV 10000 /* nominal maximum sample value */ |
242 |
+ |
#define C_CLPWM (683./C_CMAXV) /* peak lumens/watt multiplier */ |
243 |
+ |
|
244 |
+ |
#define C_CSSPEC 01 /* flag if spectrum is set */ |
245 |
+ |
#define C_CDSPEC 02 /* flag if defined w/ spectrum */ |
246 |
+ |
#define C_CSXY 04 /* flag if xy is set */ |
247 |
+ |
#define C_CDXY 010 /* flag if defined w/ xy */ |
248 |
+ |
#define C_CSEFF 020 /* flag if efficacy set */ |
249 |
+ |
|
250 |
|
typedef struct { |
251 |
< |
float cx, cy; /* XY chromaticity coordinates */ |
252 |
< |
} C_COLOR; /* color context */ |
251 |
> |
int clock; /* incremented each change */ |
252 |
> |
char *client_data; /* pointer to private client-owned data */ |
253 |
> |
short flags; /* what's been set */ |
254 |
> |
short ssamp[C_CNSS]; /* spectral samples, min wl to max */ |
255 |
> |
long ssum; /* straight sum of spectral values */ |
256 |
> |
float cx, cy; /* xy chromaticity value */ |
257 |
> |
float eff; /* efficacy (lumens/watt) */ |
258 |
> |
} C_COLOR; |
259 |
|
|
260 |
+ |
#define C_DEFCOLOR { 1, NULL, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\ |
261 |
+ |
{C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
262 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
263 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
264 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
265 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
266 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ |
267 |
+ |
C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV},\ |
268 |
+ |
(long)C_CNSS*C_CMAXV, 1./3., 1./3., 178.006 } |
269 |
+ |
|
270 |
+ |
#define c_cval(c,l) ((double)(c)->ssamp[((l)-C_MINWL)/C_CWLI] / (c)->ssum) |
271 |
+ |
|
272 |
+ |
#define C_1SIDEDTHICK 0.005 /* assumed thickness of 1-sided mat. */ |
273 |
+ |
|
274 |
|
typedef struct { |
181 |
– |
char *name; /* material name */ |
275 |
|
int clock; /* incremented each change -- resettable */ |
276 |
+ |
char *client_data; /* pointer to private client-owned data */ |
277 |
+ |
int sided; /* 1 if surface is 1-sided, 0 for 2-sided */ |
278 |
+ |
float nr, ni; /* index of refraction, real and imaginary */ |
279 |
|
float rd; /* diffuse reflectance */ |
280 |
|
C_COLOR rd_c; /* diffuse reflectance color */ |
281 |
|
float td; /* diffuse transmittance */ |
291 |
|
} C_MATERIAL; /* material context */ |
292 |
|
|
293 |
|
typedef struct { |
294 |
+ |
int clock; /* incremented each change -- resettable */ |
295 |
+ |
char *client_data; /* pointer to private client-owned data */ |
296 |
|
FVECT p, n; /* point and normal */ |
297 |
|
} C_VERTEX; /* vertex context */ |
298 |
|
|
299 |
< |
#define isgrey(cxy) ((cxy)->cx > .31 && (cxy)->cx < .35 && \ |
300 |
< |
(cxy)->cy > .31 && (cxy)->cy < .35) |
299 |
> |
#define C_DEFMATERIAL {1,NULL,0,1.,0.,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,\ |
300 |
> |
C_DEFCOLOR,0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
301 |
> |
#define C_DEFVERTEX {1,NULL,{0.,0.,0.},{0.,0.,0.}} |
302 |
|
|
204 |
– |
#define C_DEFCOLOR {.333,.333} |
205 |
– |
#define C_DEFMATERIAL {NULL,1,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ |
206 |
– |
0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} |
207 |
– |
#define C_DEFVERTEX {{0.,0.,0.},{0.,0.,0.}} |
208 |
– |
|
303 |
|
extern C_COLOR *c_ccolor; /* the current color */ |
304 |
+ |
extern char *c_ccname; /* current color name */ |
305 |
|
extern C_MATERIAL *c_cmaterial; /* the current material */ |
306 |
+ |
extern char *c_cmname; /* current material name */ |
307 |
|
extern C_VERTEX *c_cvertex; /* the current vertex */ |
308 |
+ |
extern char *c_cvname; /* current vertex name */ |
309 |
|
|
310 |
|
#ifdef NOPROTO |
311 |
|
extern int c_hcolor(); /* handle color entity */ |
312 |
|
extern int c_hmaterial(); /* handle material entity */ |
313 |
|
extern int c_hvertex(); /* handle vertex entity */ |
314 |
|
extern void c_clearall(); /* clear context tables */ |
315 |
+ |
extern C_MATERIAL *c_getmaterial(); /* get a named material */ |
316 |
|
extern C_VERTEX *c_getvert(); /* get a named vertex */ |
317 |
+ |
extern C_COLOR *c_getcolor(); /* get a named color */ |
318 |
+ |
extern void c_ccvt(); /* fix color representation */ |
319 |
+ |
extern int c_isgrey(); /* check if color is grey */ |
320 |
|
#else |
321 |
|
extern int c_hcolor(int, char **); /* handle color entity */ |
322 |
|
extern int c_hmaterial(int, char **); /* handle material entity */ |
323 |
|
extern int c_hvertex(int, char **); /* handle vertex entity */ |
324 |
|
extern void c_clearall(void); /* clear context tables */ |
325 |
+ |
extern C_MATERIAL *c_getmaterial(char *); /* get a named material */ |
326 |
|
extern C_VERTEX *c_getvert(char *); /* get a named vertex */ |
327 |
+ |
extern C_COLOR *c_getcolor(char *); /* get a named color */ |
328 |
+ |
extern void c_ccvt(C_COLOR *, int); /* fix color representation */ |
329 |
+ |
extern int c_isgrey(C_COLOR *); /* check if color is grey */ |
330 |
|
#endif |
331 |
|
|
332 |
|
/************************************************************************* |
354 |
|
#define copymat4(m4a,m4b) bcopy((char *)m4b,(char *)m4a,sizeof(MAT4)) |
355 |
|
#else |
356 |
|
#define copymat4(m4a,m4b) (void)memcpy((char *)m4a,(char *)m4b,sizeof(MAT4)) |
252 |
– |
extern char *memcpy(); |
357 |
|
#endif |
358 |
|
|
359 |
|
#define MAT4IDENT { {1.,0.,0.,0.}, {0.,1.,0.,0.}, \ |
365 |
|
|
366 |
|
/* regular transformation */ |
367 |
|
typedef struct { |
368 |
< |
MAT4 xfm; /* transform matrix */ |
369 |
< |
FLOAT sca; /* scalefactor */ |
368 |
> |
MAT4 xfm; /* transform matrix */ |
369 |
> |
FLOAT sca; /* scalefactor */ |
370 |
|
} XF; |
371 |
|
|
372 |
|
#define identxf(xp) (void)(setident4((xp)->xfm),(xp)->sca=1.0) |
373 |
|
|
374 |
+ |
#define XF_MAXDIM 8 /* maximum array dimensions */ |
375 |
+ |
|
376 |
+ |
struct xf_array { |
377 |
+ |
MG_FPOS spos; /* starting position on input */ |
378 |
+ |
int ndim; /* number of array dimensions */ |
379 |
+ |
struct { |
380 |
+ |
short i, n; /* current count and maximum */ |
381 |
+ |
char arg[8]; /* string argument value */ |
382 |
+ |
} aarg[XF_MAXDIM]; |
383 |
+ |
}; |
384 |
+ |
|
385 |
|
typedef struct xf_spec { |
386 |
< |
short xac; /* transform argument count */ |
387 |
< |
short xav0; /* zeroeth argument in xf_argv array */ |
388 |
< |
XF xf; /* cumulative transformation */ |
389 |
< |
struct xf_spec *prev; /* previous transformation context */ |
390 |
< |
} XF_SPEC; |
386 |
> |
long xid; /* unique transform id */ |
387 |
> |
short xac; /* context argument count */ |
388 |
> |
short rev; /* boolean true if vertices reversed */ |
389 |
> |
XF xf; /* cumulative transformation */ |
390 |
> |
struct xf_array *xarr; /* transformation array pointer */ |
391 |
> |
struct xf_spec *prev; /* previous transformation context */ |
392 |
> |
} XF_SPEC; /* followed by argument buffer */ |
393 |
|
|
394 |
< |
extern int xf_argc; /* total # transform args. */ |
395 |
< |
extern char **xf_argv; /* transform arguments */ |
279 |
< |
extern XF_SPEC *xf_context; /* current context */ |
394 |
> |
extern XF_SPEC *xf_context; /* current transform context */ |
395 |
> |
extern char **xf_argend; /* last transform argument */ |
396 |
|
|
397 |
+ |
#define xf_ac(xf) ((xf)==NULL ? 0 : (xf)->xac) |
398 |
+ |
#define xf_av(xf) (xf_argend - (xf)->xac) |
399 |
+ |
|
400 |
+ |
#define xf_argc xf_ac(xf_context) |
401 |
+ |
#define xf_argv xf_av(xf_context) |
402 |
+ |
|
403 |
|
/* |
404 |
|
* The transformation handler should do most of the work that needs |
405 |
|
* doing. Just pass it any xf entities, then use the associated |
423 |
|
|
424 |
|
/* The following are support routines you probably won't call directly */ |
425 |
|
|
426 |
+ |
XF_SPEC *new_xf(); /* allocate new transform */ |
427 |
+ |
void free_xf(); /* free a transform */ |
428 |
+ |
int xf_aname(); /* name this instance */ |
429 |
+ |
long comp_xfid(); /* compute unique ID */ |
430 |
|
extern void multmat4(); /* m4a = m4b X m4c */ |
431 |
|
extern void multv3(); /* v3a = v3b X m4 (vectors) */ |
432 |
|
extern void multp3(); /* p3a = p3b X m4 (points) */ |
443 |
|
|
444 |
|
/* The following are support routines you probably won't call directly */ |
445 |
|
|
446 |
+ |
XF_SPEC *new_xf(int, char **); /* allocate new transform */ |
447 |
+ |
void free_xf(XF_SPEC *); /* free a transform */ |
448 |
+ |
int xf_aname(struct xf_array *); /* name this instance */ |
449 |
+ |
long comp_xfid(MAT4); /* compute unique ID */ |
450 |
|
extern void multmat4(MAT4, MAT4, MAT4); /* m4a = m4b X m4c */ |
451 |
|
extern void multv3(FVECT, FVECT, MAT4); /* v3a = v3b X m4 (vectors) */ |
452 |
|
extern void multp3(FVECT, FVECT, MAT4); /* p3a = p3b X m4 (points) */ |
453 |
< |
extern int xf(XF, int, char **); /* interpret transform spec. */ |
453 |
> |
extern int xf(XF *, int, char **); /* interpret transform spec. */ |
454 |
|
|
455 |
|
#endif |
456 |
|
|
458 |
|
* Miscellaneous definitions |
459 |
|
*/ |
460 |
|
|
461 |
+ |
#ifndef PI |
462 |
|
#ifdef M_PI |
463 |
< |
#define PI M_PI |
463 |
> |
#define PI ((double)M_PI) |
464 |
|
#else |
465 |
|
#define PI 3.14159265358979323846 |
466 |
|
#endif |
336 |
– |
|
337 |
– |
#ifdef DCL_ATOF |
338 |
– |
extern double atof(); |
467 |
|
#endif |
468 |
|
|
469 |
|
#ifndef MEM_PTR |
470 |
|
#define MEM_PTR void * |
471 |
|
#endif |
472 |
|
|
473 |
< |
extern MEM_PTR malloc(); |
346 |
< |
extern MEM_PTR calloc(); |
347 |
< |
extern MEM_PTR realloc(); |
473 |
> |
#endif /*MG_VMAJOR*/ |