--- ray/src/cv/mgflib/parser.h 1995/05/09 11:47:27 1.21 +++ ray/src/cv/mgflib/parser.h 1998/01/16 10:47:27 1.32 @@ -6,9 +6,14 @@ * Header file for MGF interpreter */ +#ifndef MG_VMAJOR + /* must include stdio.h before us */ - /* Entities (order doesn't really matter) */ +#define MG_VMAJOR 2 /* major version number */ +#define MG_VMINOR 0 /* minor version number */ + + /* Entities (list is only appended, never modified) */ #define MG_E_COMMENT 0 /* # */ #define MG_E_COLOR 1 /* c */ #define MG_E_CCT 2 /* cct */ @@ -37,25 +42,36 @@ #define MG_E_TS 25 /* ts */ #define MG_E_VERTEX 26 /* v */ #define MG_E_XF 27 /* xf */ + /* end of Version 1 entities */ +#define MG_E_FACEH 28 /* fh */ + /* end of Version 2 entities */ -#define MG_NENTITIES 28 /* total # entities */ +#define MG_NENTITIES 29 /* total # entities */ +#define MG_NELIST {28,29} /* entity count for version 1 and up */ + #define MG_NAMELIST {"#","c","cct","cone","cmix","cspec","cxy","cyl","ed",\ "f","i","ies","ir","m","n","o","p","prism","rd",\ - "ring","rs","sides","sph","td","torus","ts","v","xf"} + "ring","rs","sides","sph","td","torus","ts","v","xf",\ + "fh"} #define MG_MAXELEN 6 extern char mg_ename[MG_NENTITIES][MG_MAXELEN]; - /* Handler routines for each entity */ - + /* Handler routines for each entity and unknown ones */ #ifdef NOPROTO extern int (*mg_ehand[MG_NENTITIES])(); +extern int (*mg_uhand)(); +extern int mg_defuhand(); #else extern int (*mg_ehand[MG_NENTITIES])(int argc, char **argv); +extern int (*mg_uhand)(int argc, char **argv); +extern int mg_defuhand(int, char **); #endif +extern unsigned mg_nunknown; /* count of unknown entities */ + /* Error codes */ #define MG_OK 0 /* normal return value */ #define MG_EUNK 1 /* unknown entity */ @@ -68,10 +84,12 @@ extern int (*mg_ehand[MG_NENTITIES])(int argc, char ** #define MG_EMEM 8 /* out of memory */ #define MG_ESEEK 9 /* file seek error */ #define MG_EBADMAT 10 /* bad material specification */ +#define MG_ELINE 11 /* input line too long */ +#define MG_ECNTXT 12 /* unmatched context close */ -#define MG_NERRS 11 +#define MG_NERRS 13 -extern char *mg_err[MG_NERRS]; +extern char *mg_err[MG_NERRS]; /* list of error messages */ /* * The general process for running the parser is to fill in the mg_ehand @@ -149,11 +167,37 @@ extern int mg_nqcdivs; /* divisions per quarter circl #ifdef NOPROTO extern int mg_entity(); /* get entity number from its name */ extern int isint(); /* non-zero if integer format */ +extern int isintd(); /* same with delimiter set */ extern int isflt(); /* non-zero if floating point format */ +extern int isfltd(); /* same with delimiter set */ +extern int isname(); /* non-zero if legal identifier name */ +extern int badarg(); /* check argument format */ +extern int e_include(); /* expand include entity */ +extern int e_pipe(); /* expand piped command */ +extern int e_sph(); /* expand sphere as other entities */ +extern int e_torus(); /* expand torus as other entities */ +extern int e_cyl(); /* expand cylinder as other entities */ +extern int e_ring(); /* expand ring as other entities */ +extern int e_cone(); /* expand cone as other entities */ +extern int e_prism(); /* expand prism as other entities */ +extern int e_faceh(); /* expand face w/ holes as face */ #else extern int mg_entity(char *); /* get entity number from its name */ extern int isint(char *); /* non-zero if integer format */ +extern int isintd(char *, char *); /* same with delimiter set */ extern int isflt(char *); /* non-zero if floating point format */ +extern int isfltd(char *, char *); /* same with delimiter set */ +extern int isname(char *); /* non-zero if legal identifier name */ +extern int badarg(int, char **, char *);/* check argument format */ +extern int e_include(int, char **); /* expand include entity */ +extern int e_pipe(int, char **); /* expand piped command */ +extern int e_sph(int, char **); /* expand sphere as other entities */ +extern int e_torus(int, char **); /* expand torus as other entities */ +extern int e_cyl(int, char **); /* expand cylinder as other entities */ +extern int e_ring(int, char **); /* expand ring as other entities */ +extern int e_cone(int, char **); /* expand cone as other entities */ +extern int e_prism(int, char **); /* expand prism as other entities */ +extern int e_faceh(int, char **); /* expand face w/ holes as face */ #endif /************************************************************************ @@ -185,6 +229,7 @@ typedef FLOAT FVECT[3]; extern double normalize(); /* normalize a vector */ #else extern double normalize(FVECT); /* normalize a vector */ +extern void fcross(FVECT,FVECT,FVECT);/* cross product of two vectors */ #endif /************************************************************************ @@ -206,15 +251,16 @@ extern double normalize(FVECT); /* normalize a vector #define C_CSEFF 020 /* flag if efficacy set */ typedef struct { - int clock; /* incremented each change */ - short flags; /* what's been set */ - short ssamp[C_CNSS]; /* spectral samples, min wl to max */ - long ssum; /* straight sum of spectral values */ - float cx, cy; /* xy chromaticity value */ - float eff; /* efficacy (lumens/watt) */ + int clock; /* incremented each change */ + char *client_data; /* pointer to private client-owned data */ + short flags; /* what's been set */ + short ssamp[C_CNSS]; /* spectral samples, min wl to max */ + long ssum; /* straight sum of spectral values */ + float cx, cy; /* xy chromaticity value */ + float eff; /* efficacy (lumens/watt) */ } C_COLOR; -#define C_DEFCOLOR { 1, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\ +#define C_DEFCOLOR { 1, NULL, C_CDXY|C_CSXY|C_CSSPEC|C_CSEFF,\ {C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,C_CMAXV,\ @@ -230,6 +276,7 @@ typedef struct { typedef struct { int clock; /* incremented each change -- resettable */ + char *client_data; /* pointer to private client-owned data */ int sided; /* 1 if surface is 1-sided, 0 for 2-sided */ float nr, ni; /* index of refraction, real and imaginary */ float rd; /* diffuse reflectance */ @@ -248,12 +295,13 @@ typedef struct { typedef struct { int clock; /* incremented each change -- resettable */ + char *client_data; /* pointer to private client-owned data */ FVECT p, n; /* point and normal */ } C_VERTEX; /* vertex context */ -#define C_DEFMATERIAL {1,0,1.,0.,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,C_DEFCOLOR,\ - 0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} -#define C_DEFVERTEX {1,{0.,0.,0.},{0.,0.,0.}} +#define C_DEFMATERIAL {1,NULL,0,1.,0.,0.,C_DEFCOLOR,0.,C_DEFCOLOR,0.,\ + C_DEFCOLOR,0.,C_DEFCOLOR,0.,0.,C_DEFCOLOR,0.} +#define C_DEFVERTEX {1,NULL,{0.,0.,0.},{0.,0.,0.}} extern C_COLOR *c_ccolor; /* the current color */ extern char *c_ccname; /* current color name */ @@ -339,18 +387,22 @@ struct xf_array { typedef struct xf_spec { long xid; /* unique transform id */ - short xav0; /* zeroeth argument in xf_argv array */ - short xac; /* transform argument count */ + short xac; /* context argument count */ short rev; /* boolean true if vertices reversed */ XF xf; /* cumulative transformation */ struct xf_array *xarr; /* transformation array pointer */ struct xf_spec *prev; /* previous transformation context */ } XF_SPEC; /* followed by argument buffer */ -extern int xf_argc; /* total # transform args. */ -extern char **xf_argv; /* transform arguments */ -extern XF_SPEC *xf_context; /* current context */ +extern XF_SPEC *xf_context; /* current transform context */ +extern char **xf_argend; /* last transform argument */ +#define xf_ac(xf) ((xf)==NULL ? 0 : (xf)->xac) +#define xf_av(xf) (xf_argend - (xf)->xac) + +#define xf_argc xf_ac(xf_context) +#define xf_argv xf_av(xf_context) + /* * The transformation handler should do most of the work that needs * doing. Just pass it any xf entities, then use the associated @@ -374,6 +426,10 @@ extern void xf_clear(); /* clear xf stack */ /* The following are support routines you probably won't call directly */ +XF_SPEC *new_xf(); /* allocate new transform */ +void free_xf(); /* free a transform */ +int xf_aname(); /* name this instance */ +long comp_xfid(); /* compute unique ID */ extern void multmat4(); /* m4a = m4b X m4c */ extern void multv3(); /* v3a = v3b X m4 (vectors) */ extern void multp3(); /* p3a = p3b X m4 (points) */ @@ -390,6 +446,10 @@ extern void xf_clear(void); /* clear xf stack */ /* The following are support routines you probably won't call directly */ +XF_SPEC *new_xf(int, char **); /* allocate new transform */ +void free_xf(XF_SPEC *); /* free a transform */ +int xf_aname(struct xf_array *); /* name this instance */ +long comp_xfid(MAT4); /* compute unique ID */ extern void multmat4(MAT4, MAT4, MAT4); /* m4a = m4b X m4c */ extern void multv3(FVECT, FVECT, MAT4); /* v3a = v3b X m4 (vectors) */ extern void multp3(FVECT, FVECT, MAT4); /* p3a = p3b X m4 (points) */ @@ -401,11 +461,13 @@ extern int xf(XF *, int, char **); /* interpret trans * Miscellaneous definitions */ +#ifndef PI #ifdef M_PI -#define PI M_PI +#define PI ((double)M_PI) #else #define PI 3.14159265358979323846 #endif +#endif #ifdef DCL_ATOF extern double atof(); @@ -419,3 +481,5 @@ extern MEM_PTR malloc(); extern MEM_PTR calloc(); extern MEM_PTR realloc(); extern void free(); + +#endif /*MG_VMAJOR*/