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root/radiance/ray/src/cv/mgflib/parser.c
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Comparing ray/src/cv/mgflib/parser.c (file contents):
Revision 1.13 by greg, Tue Mar 7 14:53:23 1995 UTC vs.
Revision 1.19 by greg, Fri Oct 27 15:47:18 1995 UTC

# Line 1 | Line 1
1 < /* Copyright (c) 1994 Regents of the University of California */
1 > /* Copyright (c) 1995 Regents of the University of California */
2  
3   #ifndef lint
4   static char SCCSid[] = "$SunId$ LBL";
# Line 27 | Line 27 | char   mg_ename[MG_NENTITIES][MG_MAXELEN] = MG_NAMELIST;
27  
28   int     (*mg_ehand[MG_NENTITIES])();
29  
30 +                        /* Handler routine for unknown entities */
31 +
32 + int     (*mg_uhand)() = mg_defuhand;
33 +
34 + unsigned        mg_nunknown;    /* count of unknown entities */
35 +
36                          /* error messages */
37  
38   char    *mg_err[MG_NERRS] = MG_ERRLIST;
# Line 89 | Line 95 | mg_init()                      /* initialize alternate entity handlers */
95                  mg_ehand[MG_E_INCLUDE] = e_include;
96          if (mg_ehand[MG_E_SPH] == NULL) {
97                  mg_ehand[MG_E_SPH] = e_sph;
98 <                ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
98 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
99          } else
100 <                uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
100 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
101          if (mg_ehand[MG_E_CYL] == NULL) {
102                  mg_ehand[MG_E_CYL] = e_cyl;
103 <                ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
103 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
104          } else
105 <                uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
105 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
106          if (mg_ehand[MG_E_CONE] == NULL) {
107                  mg_ehand[MG_E_CONE] = e_cone;
108 <                ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
108 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
109          } else
110 <                uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
110 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
111          if (mg_ehand[MG_E_RING] == NULL) {
112                  mg_ehand[MG_E_RING] = e_ring;
113 <                ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX;
113 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX;
114          } else
115 <                uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF;
115 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF;
116          if (mg_ehand[MG_E_PRISM] == NULL) {
117                  mg_ehand[MG_E_PRISM] = e_prism;
118 <                ineed |= 1<<MG_E_POINT|1<<MG_E_VERTEX;
118 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX;
119          } else
120 <                uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
120 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
121          if (mg_ehand[MG_E_TORUS] == NULL) {
122                  mg_ehand[MG_E_TORUS] = e_torus;
123 <                ineed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX;
123 >                ineed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX;
124          } else
125 <                uneed |= 1<<MG_E_POINT|1<<MG_E_NORMAL|1<<MG_E_VERTEX|1<<MG_E_XF;
125 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_NORMAL|1L<<MG_E_VERTEX|1L<<MG_E_XF;
126          if (mg_ehand[MG_E_COLOR] != NULL) {
127                  if (mg_ehand[MG_E_CMIX] == NULL) {
128                          mg_ehand[MG_E_CMIX] = e_cmix;
129 <                        ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
129 >                        ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
130                  }
131                  if (mg_ehand[MG_E_CSPEC] == NULL) {
132                          mg_ehand[MG_E_CSPEC] = e_cspec;
133 <                        ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
133 >                        ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
134                  }
135                  if (mg_ehand[MG_E_CCT] == NULL) {
136                          mg_ehand[MG_E_CCT] = e_cct;
137 <                        ineed |= 1<<MG_E_COLOR|1<<MG_E_CXY|1<<MG_E_CSPEC|1<<MG_E_CMIX|1<<MG_E_CCT;
137 >                        ineed |= 1L<<MG_E_COLOR|1L<<MG_E_CXY|1L<<MG_E_CSPEC|1L<<MG_E_CMIX|1L<<MG_E_CCT;
138                  }
139          }
140                                          /* check for consistency */
141          if (mg_ehand[MG_E_FACE] != NULL)
142 <                uneed |= 1<<MG_E_POINT|1<<MG_E_VERTEX|1<<MG_E_XF;
142 >                uneed |= 1L<<MG_E_POINT|1L<<MG_E_VERTEX|1L<<MG_E_XF;
143          if (mg_ehand[MG_E_CXY] != NULL || mg_ehand[MG_E_CSPEC] != NULL ||
144                          mg_ehand[MG_E_CMIX] != NULL)
145 <                uneed |= 1<<MG_E_COLOR;
145 >                uneed |= 1L<<MG_E_COLOR;
146          if (mg_ehand[MG_E_RD] != NULL || mg_ehand[MG_E_TD] != NULL ||
147 +                        mg_ehand[MG_E_IR] != NULL ||
148                          mg_ehand[MG_E_ED] != NULL ||
149                          mg_ehand[MG_E_RS] != NULL ||
150                          mg_ehand[MG_E_TS] != NULL ||
151                          mg_ehand[MG_E_SIDES] != NULL)
152 <                uneed |= 1<<MG_E_MATERIAL;
152 >                uneed |= 1L<<MG_E_MATERIAL;
153          for (i = 0; i < MG_NENTITIES; i++)
154 <                if (uneed & 1<<i && mg_ehand[i] == NULL) {
154 >                if (uneed & 1L<<i && mg_ehand[i] == NULL) {
155                          fprintf(stderr, "Missing support for \"%s\" entity\n",
156                                          mg_ename[i]);
157                          exit(1);
158                  }
159                                          /* add support as needed */
160 <        if (ineed & 1<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex)
160 >        if (ineed & 1L<<MG_E_VERTEX && mg_ehand[MG_E_VERTEX] != c_hvertex)
161                  e_supp[MG_E_VERTEX] = c_hvertex;
162 <        if (ineed & 1<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex)
162 >        if (ineed & 1L<<MG_E_POINT && mg_ehand[MG_E_POINT] != c_hvertex)
163                  e_supp[MG_E_POINT] = c_hvertex;
164 <        if (ineed & 1<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex)
164 >        if (ineed & 1L<<MG_E_NORMAL && mg_ehand[MG_E_NORMAL] != c_hvertex)
165                  e_supp[MG_E_NORMAL] = c_hvertex;
166 <        if (ineed & 1<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor)
166 >        if (ineed & 1L<<MG_E_COLOR && mg_ehand[MG_E_COLOR] != c_hcolor)
167                  e_supp[MG_E_COLOR] = c_hcolor;
168 <        if (ineed & 1<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor)
168 >        if (ineed & 1L<<MG_E_CXY && mg_ehand[MG_E_CXY] != c_hcolor)
169                  e_supp[MG_E_CXY] = c_hcolor;
170 <        if (ineed & 1<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor)
170 >        if (ineed & 1L<<MG_E_CSPEC && mg_ehand[MG_E_CSPEC] != c_hcolor)
171                  e_supp[MG_E_CSPEC] = c_hcolor;
172 <        if (ineed & 1<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor)
172 >        if (ineed & 1L<<MG_E_CMIX && mg_ehand[MG_E_CMIX] != c_hcolor)
173                  e_supp[MG_E_CMIX] = c_hcolor;
174 <        if (ineed & 1<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor)
174 >        if (ineed & 1L<<MG_E_CCT && mg_ehand[MG_E_CCT] != c_hcolor)
175                  e_supp[MG_E_CCT] = c_hcolor;
176                                          /* discard remaining entities */
177          for (i = 0; i < MG_NENTITIES; i++)
# Line 202 | Line 209 | char   **av;
209   {
210          int     rv;
211  
212 <        if (en < 0 && (en = mg_entity(av[0])) < 0)
212 >        if (en < 0 && (en = mg_entity(av[0])) < 0) {    /* unknown entity */
213 >                if (mg_uhand != NULL)
214 >                        return((*mg_uhand)(ac, av));
215                  return(MG_EUNK);
216 <        if (e_supp[en] != NULL) {
216 >        }
217 >        if (e_supp[en] != NULL) {                       /* support handler */
218                  if ((rv = (*e_supp[en])(ac, av)) != MG_OK)
219                          return(rv);
220          }
221 <        return((*mg_ehand[en])(ac, av));
221 >        return((*mg_ehand[en])(ac, av));                /* assigned handler */
222   }
223  
224  
# Line 218 | Line 228 | register MG_FCTXT      *ctx;
228   char    *fn;
229   {
230          static int      nfids;
221 –        int     olen;
231          register char   *cp;
232  
233          ctx->fid = ++nfids;
# Line 231 | Line 240 | char   *fn;
240                  return(MG_OK);
241          }
242                                          /* get name relative to this context */
243 <        if (mg_file != NULL &&
235 <                        (cp = strrchr(mg_file->fname, '/')) != NULL)
236 <                olen = cp - mg_file->fname + 1;
237 <        else
238 <                olen = 0;
239 <        if (olen)
243 >        if (mg_file != NULL && (cp = strrchr(mg_file->fname, '/')) != NULL) {
244                  strcpy(ctx->fname, mg_file->fname);
245 <        strcpy(ctx->fname+olen, fn);
245 >                strcpy(ctx->fname+(cp-mg_file->fname+1), fn);
246 >        } else
247 >                strcpy(ctx->fname, fn);
248          ctx->fp = fopen(ctx->fname, "r");
249          if (ctx->fp == NULL)
250                  return(MG_ENOFILE);
# Line 360 | Line 366 | char   *fn;
366   }
367  
368  
369 + int
370 + mg_defuhand(ac, av)             /* default handler for unknown entities */
371 + int     ac;
372 + char    **av;
373 + {
374 +        if (mg_nunknown++ == 0)         /* report first incident */
375 +                fprintf(stderr, "%s: %d: %s: %s\n", mg_file->fname,
376 +                                mg_file->lineno, mg_err[MG_EUNK], av[0]);
377 +        return(MG_OK);
378 + }
379 +
380 +
381   void
382   mg_clear()                      /* clear parser history */
383   {
# Line 389 | Line 407 | char   **av;
407   {
408          char    *xfarg[MG_MAXARGC];
409          MG_FCTXT        ictx;
410 +        XF_SPEC *xf_orig = xf_context;
411          int     rv;
412  
413          if (ac < 2)
# Line 405 | Line 424 | char   **av;
424                  if ((rv = mg_handle(MG_E_XF, ac-1, xfarg)) != MG_OK)
425                          return(rv);
426          }
427 <        while (!feof(mg_file->fp)) {
427 >        do {
428                  while (mg_read())
429                          if ((rv = mg_parse()) != MG_OK) {
430                                  fprintf(stderr, "%s: %d: %s:\n%s", ictx.fname,
# Line 417 | Line 436 | char   **av;
436                  if (ac > 2)
437                          if ((rv = mg_handle(MG_E_XF, 1, xfarg)) != MG_OK)
438                                  return(rv);
439 <        }
439 >        } while (xf_context != xf_orig);
440          mg_close();
441          return(MG_OK);
442   }
# Line 714 | Line 733 | char   **av;
733          static char     *p4ent[5] = {mg_ename[MG_E_POINT],p4[0],p4[1],p4[2]};
734          static char     *n4ent[5] = {mg_ename[MG_E_NORMAL],n4[0],n4[1],n4[2]};
735          static char     *fent[6] = {mg_ename[MG_E_FACE],"_cv1","_cv2","_cv3","_cv4"};
736 +        char    *v1n;
737          register C_VERTEX       *cv1, *cv2;
738          register int    i, j;
739          FVECT   u, v, w;
# Line 729 | Line 749 | char   **av;
749          if ((cv1 = c_getvert(av[1])) == NULL ||
750                          (cv2 = c_getvert(av[3])) == NULL)
751                  return(MG_EUNDEF);
752 +        v1n = av[1];
753          if (!isflt(av[2]) || !isflt(av[4]))
754                  return(MG_ETYPE);
755          rad1 = atof(av[2]);
# Line 747 | Line 768 | char   **av;
768                  cv = cv1;
769                  cv1 = cv2;
770                  cv2 = cv;
771 +                v1n = av[3];
772                  d = rad1;
773                  rad1 = rad2;
774                  rad2 = d;
# Line 780 | Line 802 | char   **av;
802          if ((rv = mg_handle(MG_E_NORMAL, 4, n3ent)) != MG_OK)
803                  return(rv);
804          if (rad1 == 0.) {               /* triangles */
805 <                v1ent[3] = av[1];
805 >                v1ent[3] = v1n;
806                  if ((rv = mg_handle(MG_E_VERTEX, 4, v1ent)) != MG_OK)
807                          return(rv);
808                  for (j = 0; j < 3; j++)
# Line 1004 | Line 1026 | put_cspec()                    /* put out current color spectrum */
1026                  newav[2] = wl[1];
1027                  sf = (double)C_CNSS / c_ccolor->ssum;
1028                  for (i = 0; i < C_CNSS; i++) {
1029 <                        sprintf(vbuf[i], "%.6f", sf*c_ccolor->ssamp[i]);
1029 >                        sprintf(vbuf[i], "%.4f", sf*c_ccolor->ssamp[i]);
1030                          newav[i+3] = vbuf[i];
1031                  }
1032                  newav[C_CNSS+3] = NULL;

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