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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 1.32 by gregl, Fri Jan 16 10:47:27 1998 UTC vs.
Revision 1.39 by greg, Fri Jan 14 05:46:12 2011 UTC

# Line 1 | Line 1
1 < /* Copyright (c) 1995 Regents of the University of California */
2 <
3 < /* SCCSid "$SunId$ LBL" */
4 <
1 > /* RCSid: $Id$ */
2   /*
3   * Header file for MGF interpreter
4   */
5 + #ifndef _MGF_PARSER_H_
6 + #define _MGF_PARSER_H_
7  
8 < #ifndef MG_VMAJOR
8 > /* must include stdio.h and stdlib.h before us */
9  
10 < /* must include stdio.h before us */
10 > #include "ccolor.h"
11  
12 + #ifdef __cplusplus
13 + extern "C" {
14 + #endif
15 +
16   #define MG_VMAJOR       2               /* major version number */
17   #define MG_VMINOR       0               /* minor version number */
18  
# Line 60 | Line 63
63   extern char     mg_ename[MG_NENTITIES][MG_MAXELEN];
64  
65                          /* Handler routines for each entity and unknown ones */
63 – #ifdef NOPROTO
64 – extern int      (*mg_ehand[MG_NENTITIES])();
65 – extern int      (*mg_uhand)();
66 – extern int      mg_defuhand();
67 – #else
66   extern int      (*mg_ehand[MG_NENTITIES])(int argc, char **argv);
67   extern int      (*mg_uhand)(int argc, char **argv);
68   extern int      mg_defuhand(int, char **);
71 – #endif
69  
70   extern unsigned mg_nunknown;            /* count of unknown entities */
71  
# Line 130 | Line 127 | typedef struct {
127  
128   extern MG_FCTXT *mg_file;               /* current file context */
129  
133 – #ifdef NOPROTO
134 – extern void     mg_init();              /* fill in mg_ehand array */
135 – extern int      mg_load();              /* parse a file */
136 – extern int      mg_open();              /* open new input file */
137 – extern int      mg_read();              /* read next line */
138 – extern int      mg_parse();             /* parse current line */
139 – extern void     mg_fgetpos();           /* get position on input file */
140 – extern int      mg_fgoto();             /* go to position on input file */
141 – extern void     mg_close();             /* close input file */
142 – extern void     mg_clear();             /* clear parser */
143 – extern int      mg_handle();            /* handle an entity */
144 – #else
130   extern void     mg_init(void);          /* fill in mg_ehand array */
131   extern int      mg_load(char *);        /* parse a file */
132   extern int      mg_open(MG_FCTXT *, char *);    /* open new input file */
# Line 152 | Line 137 | extern int     mg_fgoto(MG_FPOS *);    /* go to position on i
137   extern void     mg_close(void);         /* close input file */
138   extern void     mg_clear(void);         /* clear parser */
139   extern int      mg_handle(int, int, char **);   /* handle an entity */
155 – #endif
140  
141   #ifndef MG_NQCD
142   #define MG_NQCD         5               /* default number of divisions */
# Line 164 | Line 148 | extern int     mg_nqcdivs;             /* divisions per quarter circl
148   * The following library routines are included for your convenience:
149   */
150  
167 – #ifdef NOPROTO
168 – extern int mg_entity();                 /* get entity number from its name */
169 – extern int isint();                     /* non-zero if integer format */
170 – extern int isintd();                    /* same with delimiter set */
171 – extern int isflt();                     /* non-zero if floating point format */
172 – extern int isfltd();                    /* same with delimiter set */
173 – extern int isname();                    /* non-zero if legal identifier name */
174 – extern int badarg();                    /* check argument format */
175 – extern int e_include();                 /* expand include entity */
176 – extern int e_pipe();                    /* expand piped command */
177 – extern int e_sph();                     /* expand sphere as other entities */
178 – extern int e_torus();                   /* expand torus as other entities */
179 – extern int e_cyl();                     /* expand cylinder as other entities */
180 – extern int e_ring();                    /* expand ring as other entities */
181 – extern int e_cone();                    /* expand cone as other entities */
182 – extern int e_prism();                   /* expand prism as other entities */
183 – extern int e_faceh();                   /* expand face w/ holes as face */
184 – #else
151   extern int mg_entity(char *);           /* get entity number from its name */
152   extern int isint(char *);               /* non-zero if integer format */
153   extern int isintd(char *, char *);      /* same with delimiter set */
# Line 198 | Line 164 | extern int e_ring(int, char **);       /* expand ring as oth
164   extern int e_cone(int, char **);        /* expand cone as other entities */
165   extern int e_prism(int, char **);       /* expand prism as other entities */
166   extern int e_faceh(int, char **);       /* expand face w/ holes as face */
201 – #endif
167  
168   /************************************************************************
169   *      Definitions for 3-d vector manipulation functions
170   */
171  
172   #ifdef  SMLFLT
173 < #define  FLOAT          float
173 > #define  RREAL          float
174   #define  FTINY          (1e-3)
175   #else
176 < #define  FLOAT          double
176 > #define  RREAL          double
177   #define  FTINY          (1e-6)
178   #endif
179   #define  FHUGE          (1e10)
180  
181 < typedef FLOAT  FVECT[3];
181 > typedef RREAL  FVECT[3];
182  
183   #define  VCOPY(v1,v2)   ((v1)[0]=(v2)[0],(v1)[1]=(v2)[1],(v1)[2]=(v2)[2])
184   #define  DOT(v1,v2)     ((v1)[0]*(v2)[0]+(v1)[1]*(v2)[1]+(v1)[2]*(v2)[2])
# Line 225 | Line 190 | typedef FLOAT  FVECT[3];
190  
191   #define round0(x)       if (x <= FTINY && x >= -FTINY) x = 0
192  
228 – #ifdef NOPROTO
229 – extern double   normalize();            /* normalize a vector */
230 – #else
193   extern double   normalize(FVECT);       /* normalize a vector */
194   extern void     fcross(FVECT,FVECT,FVECT);/* cross product of two vectors */
233 – #endif
195  
196   /************************************************************************
197   *      Definitions for context handling routines
198   *      (materials, colors, vectors)
199   */
200  
240 – #define C_CMINWL        380             /* minimum wavelength */
241 – #define C_CMAXWL        780             /* maximum wavelength */
242 – #define C_CNSS          41              /* number of spectral samples */
243 – #define C_CWLI          ((C_CMAXWL-C_CMINWL)/(C_CNSS-1))
244 – #define C_CMAXV         10000           /* nominal maximum sample value */
245 – #define C_CLPWM         (683./C_CMAXV)  /* peak lumens/watt multiplier */
246 –
247 – #define C_CSSPEC        01              /* flag if spectrum is set */
248 – #define C_CDSPEC        02              /* flag if defined w/ spectrum */
249 – #define C_CSXY          04              /* flag if xy is set */
250 – #define C_CDXY          010             /* flag if defined w/ xy */
251 – #define C_CSEFF         020             /* flag if efficacy set */
252 –
253 – typedef struct {
254 –        int     clock;          /* incremented each change */
255 –        char    *client_data;   /* pointer to private client-owned data */
256 –        short   flags;          /* what's been set */
257 –        short   ssamp[C_CNSS];  /* spectral samples, min wl to max */
258 –        long    ssum;           /* straight sum of spectral values */
259 –        float   cx, cy;         /* xy chromaticity value */
260 –        float   eff;            /* efficacy (lumens/watt) */
261 – } C_COLOR;
262 –
263 – #define C_DEFCOLOR      { 1, NULL, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\
264 –                        {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 –                        C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\
269 –                        C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\
270 –                        C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV},\
271 –                        (long)C_CNSS*C_CMAXV, 1./3., 1./3., 178.006 }
272 –
273 – #define c_cval(c,l)     ((double)(c)->ssamp[((l)-C_MINWL)/C_CWLI] / (c)->ssum)
274 –
201   #define C_1SIDEDTHICK   0.005           /* assumed thickness of 1-sided mat. */
202  
203   typedef struct {
204          int     clock;          /* incremented each change -- resettable */
205 <        char    *client_data;   /* pointer to private client-owned data */
205 >        void    *client_data;   /* pointer to private client-owned data */
206          int     sided;          /* 1 if surface is 1-sided, 0 for 2-sided */
207          float   nr, ni;         /* index of refraction, real and imaginary */
208          float   rd;             /* diffuse reflectance */
# Line 295 | Line 221 | typedef struct {
221  
222   typedef struct {
223          int     clock;          /* incremented each change -- resettable */
224 <        char    *client_data;   /* pointer to private client-owned data */
224 >        void    *client_data;   /* pointer to private client-owned data */
225          FVECT   p, n;           /* point and normal */
226   } C_VERTEX;             /* vertex context */
227  
# Line 310 | Line 236 | extern char            *c_cmname;      /* current material name */
236   extern C_VERTEX         *c_cvertex;     /* the current vertex */
237   extern char             *c_cvname;      /* current vertex name */
238  
313 – #ifdef NOPROTO
314 – extern int      c_hcolor();                     /* handle color entity */
315 – extern int      c_hmaterial();                  /* handle material entity */
316 – extern int      c_hvertex();                    /* handle vertex entity */
317 – extern void     c_clearall();                   /* clear context tables */
318 – extern C_MATERIAL       *c_getmaterial();       /* get a named material */
319 – extern C_VERTEX *c_getvert();                   /* get a named vertex */
320 – extern C_COLOR  *c_getcolor();                  /* get a named color */
321 – extern void     c_ccvt();                       /* fix color representation */
322 – extern int      c_isgrey();                     /* check if color is grey */
323 – #else
239   extern int      c_hcolor(int, char **);         /* handle color entity */
240   extern int      c_hmaterial(int, char **);      /* handle material entity */
241   extern int      c_hvertex(int, char **);        /* handle vertex entity */
# Line 328 | Line 243 | extern void    c_clearall(void);               /* clear context tables
243   extern C_MATERIAL       *c_getmaterial(char *); /* get a named material */
244   extern C_VERTEX *c_getvert(char *);             /* get a named vertex */
245   extern C_COLOR  *c_getcolor(char *);            /* get a named color */
331 – extern void     c_ccvt(C_COLOR *, int);         /* fix color representation */
332 – extern int      c_isgrey(C_COLOR *);            /* check if color is grey */
333 – #endif
246  
247   /*************************************************************************
248   *      Definitions for hierarchical object name handler
# Line 339 | Line 251 | extern int     c_isgrey(C_COLOR *);            /* check if color is
251   extern int      obj_nnames;             /* depth of name hierarchy */
252   extern char     **obj_name;             /* names in hierarchy */
253  
342 – #ifdef NOPROTO
343 – extern int      obj_handler();                  /* handle an object entity */
344 – extern void     obj_clear();                    /* clear object stack */
345 – #else
254   extern int      obj_handler(int, char **);      /* handle an object entity */
255   extern void     obj_clear(void);                /* clear object stack */
348 – #endif
256  
257   /**************************************************************************
258   *      Definitions for hierarchical transformation handler
259   */
260  
261 < typedef FLOAT  MAT4[4][4];
261 > typedef RREAL  MAT4[4][4];
262  
356 – #ifdef  BSD
357 – #define  copymat4(m4a,m4b)      bcopy((char *)m4b,(char *)m4a,sizeof(MAT4))
358 – #else
263   #define  copymat4(m4a,m4b)      (void)memcpy((char *)m4a,(char *)m4b,sizeof(MAT4))
360 – #endif
264  
265   #define  MAT4IDENT              { {1.,0.,0.,0.}, {0.,1.,0.,0.}, \
266                                  {0.,0.,1.,0.}, {0.,0.,0.,1.} }
# Line 369 | Line 272 | extern MAT4  m4ident;
272                                  /* regular transformation */
273   typedef struct {
274          MAT4    xfm;                            /* transform matrix */
275 <        FLOAT   sca;                            /* scalefactor */
275 >        RREAL   sca;                            /* scalefactor */
276   }  XF;
277  
278   #define identxf(xp)             (void)(setident4((xp)->xfm),(xp)->sca=1.0)
# Line 415 | Line 318 | extern char    **xf_argend;                    /* last transform argument
318   * puts the result into the first.
319   */
320  
418 – #ifdef NOPROTO
321  
420 – extern int      xf_handler();           /* handle xf entity */
421 – extern void     xf_xfmpoint();          /* transform point */
422 – extern void     xf_xfmvect();           /* transform vector */
423 – extern void     xf_rotvect();           /* rotate vector */
424 – extern double   xf_scale();             /* scale a value */
425 – extern void     xf_clear();             /* clear xf stack */
426 –
427 – /* The following are support routines you probably won't call directly */
428 –
429 – XF_SPEC         *new_xf();              /* allocate new transform */
430 – void            free_xf();              /* free a transform */
431 – int             xf_aname();             /* name this instance */
432 – long            comp_xfid();            /* compute unique ID */
433 – extern void     multmat4();             /* m4a = m4b X m4c */
434 – extern void     multv3();               /* v3a = v3b X m4 (vectors) */
435 – extern void     multp3();               /* p3a = p3b X m4 (points) */
436 – extern int      xf();                   /* interpret transform spec. */
437 –
438 – #else
439 –
322   extern int      xf_handler(int, char **);       /* handle xf entity */
323   extern void     xf_xfmpoint(FVECT, FVECT);      /* transform point */
324   extern void     xf_xfmvect(FVECT, FVECT);       /* transform vector */
# Line 455 | Line 337 | extern void    multv3(FVECT, FVECT, MAT4);     /* v3a = v3b X
337   extern void     multp3(FVECT, FVECT, MAT4);     /* p3a = p3b X m4 (points) */
338   extern int      xf(XF *, int, char **);         /* interpret transform spec. */
339  
340 < #endif
340 >        /* cvrgb.c */
341 > extern void mgf2rgb(C_COLOR *cin, double intensity, float cout[3]);
342  
343   /************************************************************************
344   *      Miscellaneous definitions
# Line 469 | Line 352 | extern int     xf(XF *, int, char **);         /* interpret trans
352   #endif
353   #endif
354  
355 < #ifdef DCL_ATOF
356 < extern double   atof();
355 > #ifdef __cplusplus
356 > }
357   #endif
358 + #endif /* _MGF_PARSER_H_ */
359  
476 – #ifndef MEM_PTR
477 – #define MEM_PTR         void *
478 – #endif
479 –
480 – extern MEM_PTR  malloc();
481 – extern MEM_PTR  calloc();
482 – extern MEM_PTR  realloc();
483 – extern void     free();
484 –
485 – #endif /*MG_VMAJOR*/

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