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Comparing ray/src/common/calfunc.c (file contents):
Revision 2.7 by greg, Sun Nov 22 17:29:46 1992 UTC vs.
Revision 2.8 by greg, Sat Feb 22 02:07:21 2003 UTC

# Line 1 | Line 1
1 – /* Copyright (c) 1992 Regents of the University of California */
2 –
1   #ifndef lint
2 < static char SCCSid[] = "$SunId$ LBL";
2 > static const char       RCSid[] = "$Id$";
3   #endif
6 –
4   /*
5   *  calfunc.c - routines for calcomp using functions.
6   *
7 < *      The define BIGLIB pulls in a large number of the
11 < *  available math routines.
12 < *
13 < *      If VARIABLE is not defined, only library functions
7 > *      If VARIABLE is not set, only library functions
8   *  can be accessed.
9   *
10 < *     4/2/86
10 > *  2/19/03     Eliminated conditional compiles in favor of esupport extern.
11   */
12  
13 + /* ====================================================================
14 + * The Radiance Software License, Version 1.0
15 + *
16 + * Copyright (c) 1990 - 2002 The Regents of the University of California,
17 + * through Lawrence Berkeley National Laboratory.   All rights reserved.
18 + *
19 + * Redistribution and use in source and binary forms, with or without
20 + * modification, are permitted provided that the following conditions
21 + * are met:
22 + *
23 + * 1. Redistributions of source code must retain the above copyright
24 + *         notice, this list of conditions and the following disclaimer.
25 + *
26 + * 2. Redistributions in binary form must reproduce the above copyright
27 + *       notice, this list of conditions and the following disclaimer in
28 + *       the documentation and/or other materials provided with the
29 + *       distribution.
30 + *
31 + * 3. The end-user documentation included with the redistribution,
32 + *           if any, must include the following acknowledgment:
33 + *             "This product includes Radiance software
34 + *                 (http://radsite.lbl.gov/)
35 + *                 developed by the Lawrence Berkeley National Laboratory
36 + *               (http://www.lbl.gov/)."
37 + *       Alternately, this acknowledgment may appear in the software itself,
38 + *       if and wherever such third-party acknowledgments normally appear.
39 + *
40 + * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
41 + *       and "The Regents of the University of California" must
42 + *       not be used to endorse or promote products derived from this
43 + *       software without prior written permission. For written
44 + *       permission, please contact [email protected].
45 + *
46 + * 5. Products derived from this software may not be called "Radiance",
47 + *       nor may "Radiance" appear in their name, without prior written
48 + *       permission of Lawrence Berkeley National Laboratory.
49 + *
50 + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
51 + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
52 + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
53 + * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
54 + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
57 + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
58 + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
59 + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
60 + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61 + * SUCH DAMAGE.
62 + * ====================================================================
63 + *
64 + * This software consists of voluntary contributions made by many
65 + * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
66 + * information on Lawrence Berkeley National Laboratory, please see
67 + * <http://www.lbl.gov/>.
68 + */
69 +
70   #include  <stdio.h>
71  
72   #include  <errno.h>
# Line 40 | Line 91 | static ACTIVATION  *curact = NULL;
91  
92   static double  libfunc();
93  
94 + #ifndef  MAXLIB
95   #define  MAXLIB         64      /* maximum number of library functions */
96 + #endif
97  
98   static double  l_if(), l_select(), l_rand();
99   static double  l_floor(), l_ceil();
47 – #ifdef  BIGLIB
100   static double  l_sqrt();
101   static double  l_sin(), l_cos(), l_tan();
102   static double  l_asin(), l_acos(), l_atan(), l_atan2();
103   static double  l_exp(), l_log(), l_log10();
52 – #endif
104  
54 – #ifdef  BIGLIB
105                          /* functions must be listed alphabetically */
106   static LIBR  library[MAXLIB] = {
107      { "acos", 1, ':', l_acos },
# Line 74 | Line 124 | static LIBR  library[MAXLIB] = {
124  
125   static int  libsize = 16;
126  
77 – #else
78 –                        /* functions must be listed alphabetically */
79 – static LIBR  library[MAXLIB] = {
80 –    { "ceil", 1, ':', l_ceil },
81 –    { "floor", 1, ':', l_floor },
82 –    { "if", 3, ':', l_if },
83 –    { "rand", 1, ':', l_rand },
84 –    { "select", 1, ':', l_select },
85 – };
86 –
87 – static int  libsize = 5;
88 –
89 – #endif
90 –
91 – extern char  *savestr(), *emalloc();
92 –
93 – extern VARDEF  *argf();
94 –
95 – #ifdef  VARIABLE
127   #define  resolve(ep)    ((ep)->type==VAR?(ep)->v.ln:argf((ep)->v.chan))
97 – #else
98 – #define  resolve(ep)    ((ep)->v.ln)
99 – #define varlookup(name) NULL
100 – #endif
128  
129  
130   int
# Line 148 | Line 175 | double  *a;
175   }
176  
177  
178 + void
179   funset(fname, nargs, assign, fptr)      /* set a library function */
180   char  *fname;
181   int  nargs;
# Line 155 | Line 183 | int  assign;
183   double  (*fptr)();
184   {
185      int  oldlibsize = libsize;
186 +    char *cp;
187      register LIBR  *lp;
188 <
188 >                                                /* check for context */
189 >    for (cp = fname; *cp; cp++)
190 >        ;
191 >    if (cp == fname)
192 >        return;
193 >    if (cp[-1] == CNTXMARK)
194 >        *--cp = '\0';
195      if ((lp = liblookup(fname)) == NULL) {      /* insert */
196          if (libsize >= MAXLIB) {
197              eputs("Too many library functons!\n");
# Line 240 | Line 275 | register int  n;
275   }
276  
277  
243 – #ifdef  VARIABLE
278   VARDEF *
279   argf(n)                         /* return function def for nth argument */
280   int  n;
# Line 285 | Line 319 | int  n;
319   {
320      return(argf(n)->name);
321   }
288 – #endif
322  
323  
324   double
# Line 339 | Line 372 | char  *fname;
372   }
373  
374  
342 – #ifndef  VARIABLE
343 – static VARDEF  *varlist = NULL;         /* our list of dummy variables */
344 –
345 –
346 – VARDEF *
347 – varinsert(vname)                /* dummy variable insert */
348 – char  *vname;
349 – {
350 –    register VARDEF  *vp;
351 –
352 –    vp = (VARDEF *)emalloc(sizeof(VARDEF));
353 –    vp->name = savestr(vname);
354 –    vp->nlinks = 1;
355 –    vp->def = NULL;
356 –    vp->lib = liblookup(vname);
357 –    vp->next = varlist;
358 –    varlist = vp;
359 –    return(vp);
360 – }
361 –
362 –
363 – varfree(vp)                     /* free dummy variable */
364 – register VARDEF  *vp;
365 – {
366 –    register VARDEF  *vp2;
367 –
368 –    if (vp == varlist)
369 –        varlist = vp->next;
370 –    else {
371 –        for (vp2 = varlist; vp2->next != vp; vp2 = vp2->next)
372 –                ;
373 –        vp2->next = vp->next;
374 –    }
375 –    freestr(vp->name);
376 –    efree((char *)vp);
377 – }
378 –
379 –
380 – libupdate(nm)                   /* update library */
381 – char  *nm;
382 – {
383 –    register VARDEF  *vp;
384 –
385 –    for (vp = varlist; vp != NULL; vp = vp->next)
386 –        vp->lib = liblookup(vp->name);
387 – }
388 – #endif
389 –
390 –
391 –
375   /*
376   *  The following routines are for internal use:
377   */
# Line 496 | Line 479 | l_ceil()               /* return smallest integer not less than arg
479   }
480  
481  
499 – #ifdef  BIGLIB
482   static double
483   l_sqrt()
484   {
# Line 572 | Line 554 | l_log10()
554   {
555      return(log10(argument(1)));
556   }
575 – #endif

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