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root/radiance/ray/src/cv/mgflib/parser.h
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Comparing ray/src/cv/mgflib/parser.h (file contents):
Revision 1.18 by greg, Tue Mar 7 14:53:17 1995 UTC vs.
Revision 1.33 by greg, Fri Feb 28 20:11:29 2003 UTC

# Line 1 | Line 1
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_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
8 > /* must include stdio.h and stdlib.h before us */
9  
10 < #define MG_NENTITIES    27
10 > #define MG_VMAJOR       2               /* major version number */
11 > #define MG_VMINOR       0               /* minor version number */
12  
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","m","n","o","p","prism","rd","ring",\
52 <                        "rs","sides","sph","td","torus","ts","v","xf"}
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 */
51 <
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 */
# Line 67 | Line 81 | extern int     (*mg_ehand[MG_NENTITIES])(int argc, char **
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
# Line 86 | Line 102 | extern char    *mg_err[MG_NERRS];
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, mg_handle and
105 < * mg_rewind will return an error from the list above.  In addition,
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   */
# Line 148 | Line 164 | extern int     mg_nqcdivs;             /* divisions per quarter circl
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   /************************************************************************
# Line 184 | Line 226 | typedef FLOAT  FVECT[3];
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   /************************************************************************
# Line 205 | Line 248 | extern double  normalize(FVECT);       /* normalize a vector
248   #define C_CSEFF         020             /* flag if efficacy set */
249  
250   typedef struct {
251 <        int     clock;                  /* incremented each change */
252 <        unsigned short  flags;          /* what's been set */
253 <        unsigned short  ssamp[C_CNSS];  /* spectral samples, min wl to max */
254 <        unsigned long   ssum;           /* straight sum of spectral values */
255 <        float   cx, cy;                 /* xy chromaticity value */
256 <        float   eff;                    /* efficacy (lumens/watt) */
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, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\
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,\
# Line 223 | Line 267 | typedef struct {
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  
226 – #define C_CIEX          { 1, C_CDSPEC|C_CSSPEC|C_CSXY|C_CSEFF,\
227 –                        {14,42,143,435,1344,2839,3483,3362,2908,1954,956,\
228 –                        320,49,93,633,1655,2904,4334,5945,7621,9163,10263,\
229 –                        10622,10026,8544,6424,4479,2835,1649,874,468,227,\
230 –                        114,58,29,14,7,3,2,1,0}, 106836L, .467, .368, 362.230 }
231 –
232 – #define C_CIEY          { 1, C_CDSPEC|C_CSSPEC|C_CSXY|C_CSEFF,\
233 –                        {0,1,4,12,40,116,230,380,600,910,1390,2080,3230,\
234 –                        5030,7100,8620,9540,9950,9950,9520,8700,7570,6310,\
235 –                        5030,3810,2650,1750,1070,610,320,170,82,41,21,10,\
236 –                        5,2,1,1,0,0}, 106856L, .398, .542, 493.525 }
237 –
238 – #define C_CIEZ          { 1, C_CDSPEC|C_CSSPEC|C_CSXY|C_CSEFF,\
239 –                        {65,201,679,2074,6456,13856,17471,17721,16692,\
240 –                        12876,8130,4652,2720,1582,782,422,203,87,39,21,17,\
241 –                        11,8,3,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},\
242 –                        106770L, .147, .077, 54.363 }
243 –
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 {
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 */
# Line 262 | Line 292 | typedef struct {
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 C_DEFMATERIAL   {1,0,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\
300 <                                        0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.}
301 < #define C_DEFVERTEX     {1,{0.,0.,0.},{0.,0.,0.}}
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  
303   extern C_COLOR          *c_ccolor;      /* the current color */
304   extern char             *c_ccname;      /* current color name */
# Line 353 | Line 384 | struct xf_array {
384  
385   typedef struct xf_spec {
386          long    xid;                    /* unique transform id */
387 <        short   xav0;                   /* zeroeth argument in xf_argv array */
357 <        short   xac;                    /* transform argument count */
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 */
366 < 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
# Line 388 | Line 423 | extern void    xf_clear();             /* clear xf stack */
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) */
# Line 404 | Line 443 | extern void    xf_clear(void);                 /* clear xf stack */
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) */
# Line 415 | Line 458 | extern int     xf(XF *, int, char **);         /* interpret trans
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
423 –
424 – #ifdef DCL_ATOF
425 – extern double   atof();
467   #endif
468  
469   #ifndef MEM_PTR
470   #define MEM_PTR         void *
471   #endif
472  
473 < extern MEM_PTR  malloc();
433 < extern MEM_PTR  calloc();
434 < extern MEM_PTR  realloc();
435 < extern void     free();
473 > #endif /*MG_VMAJOR*/

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