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/* Copyright (c) 1995 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* func.c - interface to calcomp functions. |
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* |
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* 4/7/86 |
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*/ |
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#include "copyright.h" |
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#include "ray.h" |
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#include "otypes.h" |
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getfunc(m, ff, ef, dofwd) /* get function for this modifier */ |
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OBJREC *m; |
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int ff; |
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unsigned ef; |
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unsigned int ef; |
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int dofwd; |
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{ |
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extern EPNODE *curfunc; |
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static char initfile[] = INITFILE; |
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char sbuf[MAXSTR]; |
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register char **arg; |
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return(f); |
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fobj = NULL; fray = NULL; |
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if (initfile[0]) { /* initialize on first call */ |
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esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_RCONST|E_REDEFW; |
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esupport &= ~(E_OUTCHAN); |
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setcontext(""); |
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scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
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scompile("Nx=$4;Ny=$5;Nz=$6;", NULL, 0); |
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if (i == 1 && arg[ff][0] == '.') |
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setcontext(f->ctx = ""); /* "." means no file */ |
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else { |
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strcpy(sbuf,arg[ff]); /* file name is context */ |
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strcpy(sbuf,arg[ff]); /* file name is context */ |
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if (i > LCALSUF && !strcmp(sbuf+i-LCALSUF, CALSUF)) |
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sbuf[i-LCALSUF] = '\0'; /* remove suffix */ |
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setcontext(f->ctx = savestr(sbuf)); |
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} |
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void |
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freefunc(m) /* free memory associated with modifier */ |
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OBJREC *m; |
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{ |
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freestr(f->ctx); |
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} |
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if (f->b != &unitxf) |
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free((char *)f->b); |
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free((void *)f->b); |
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if (f->f != NULL && f->f != &unitxf) |
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free((char *)f->f); |
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free((char *)f); |
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free((void *)f->f); |
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free((void *)f); |
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m->os = NULL; |
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} |
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int |
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setfunc(m, r) /* set channels for function call */ |
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OBJREC *m; |
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register RAY *r; |
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register MFUNC *f; |
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/* get function */ |
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if ((f = (MFUNC *)m->os) == NULL) |
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error(m, CONSISTENCY, "setfunc called before getfunc"); |
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objerror(m, CONSISTENCY, "setfunc called before getfunc"); |
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/* set evaluator context */ |
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setcontext(f->ctx); |
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/* check to see if matrix set */ |
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} |
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void |
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loadfunc(fname) /* load definition file */ |
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char *fname; |
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{ |
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extern char *getlibpath(); /* library search path */ |
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char *ffname; |
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if ((ffname = getpath(fname, getlibpath(), R_OK)) == NULL) { |
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static double |
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l_arg() /* return nth real argument */ |
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{ |
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extern double argument(); |
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register int n; |
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if (fobj == NULL) |
