11 |
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#include "paths.h" |
12 |
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#include "otypes.h" |
13 |
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#include "func.h" |
14 |
+ |
#include <ctype.h> |
15 |
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|
16 |
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|
17 |
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#define INITFILE "rayinit.cal" |
37 |
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|
38 |
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|
39 |
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void |
40 |
< |
initfunc() /* initialize function evaluation */ |
40 |
> |
initfunc(void) /* initialize function evaluation */ |
41 |
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{ |
42 |
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if (!rayinitcal[0]) /* already done? */ |
43 |
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return; |
44 |
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esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_RCONST|E_REDEFW; |
45 |
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esupport &= ~(E_OUTCHAN); |
46 |
< |
setcontext(""); |
46 |
> |
calcontext(""); |
47 |
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scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
48 |
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scompile("Nx=$4;Ny=$5;Nz=$6;", NULL, 0); |
49 |
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scompile("Px=$7;Py=$8;Pz=$9;", NULL, 0); |
63 |
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} |
64 |
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|
65 |
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|
66 |
+ |
/* Set parameters for current evaluation */ |
67 |
+ |
void |
68 |
+ |
set_eparams(const char *prms) |
69 |
+ |
{ |
70 |
+ |
static const char *last_params = NULL; |
71 |
+ |
char vname[RMAXWORD]; |
72 |
+ |
double value; |
73 |
+ |
char *cpd; |
74 |
+ |
/* check if already set */ |
75 |
+ |
if (prms == NULL || !*prms) |
76 |
+ |
return; |
77 |
+ |
if (prms == last_params || (last_params != NULL && |
78 |
+ |
!strcmp(prms, last_params))) |
79 |
+ |
return; |
80 |
+ |
last_params = prms; /* XXX assumes static string */ |
81 |
+ |
/* assign each variable */ |
82 |
+ |
while (*prms) { |
83 |
+ |
if (isspace(*prms)) { |
84 |
+ |
++prms; continue; |
85 |
+ |
} |
86 |
+ |
if (!isalpha(*prms)) |
87 |
+ |
goto bad_params; |
88 |
+ |
cpd = vname; |
89 |
+ |
while (*prms && (*prms != '=') & !isspace(*prms)) { |
90 |
+ |
if (!isid(*prms) | (cpd-vname >= RMAXWORD-1)) |
91 |
+ |
goto bad_params; |
92 |
+ |
*cpd++ = *prms++; |
93 |
+ |
} |
94 |
+ |
*cpd = '\0'; |
95 |
+ |
while (isspace(*prms)) prms++; |
96 |
+ |
if (*prms++ != '=') |
97 |
+ |
goto bad_params; |
98 |
+ |
value = atof(prms); |
99 |
+ |
if ((prms = fskip((char *)prms)) == NULL) |
100 |
+ |
goto bad_params; |
101 |
+ |
while (isspace(*prms)) prms++; |
102 |
+ |
prms += (*prms == ',') | (*prms == ';') | (*prms == ':'); |
103 |
+ |
varset(vname, '=', value); |
104 |
+ |
} |
105 |
+ |
eclock++; /* notify expression evaluator */ |
106 |
+ |
return; |
107 |
+ |
bad_params: |
108 |
+ |
sprintf(errmsg, "bad parameter list '%s'", last_params); |
109 |
+ |
error(USER, errmsg); |
110 |
+ |
} |
111 |
+ |
|
112 |
+ |
|
113 |
|
MFUNC * |
114 |
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getfunc( /* get function for this modifier */ |
115 |
|
OBJREC *m, |
136 |
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goto memerr; |
137 |
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i = strlen(arg[ff]); /* set up context */ |
138 |
|
if (i == 1 && arg[ff][0] == '.') { |
139 |
< |
setcontext(f->ctx = ""); /* "." means no file */ |
139 |
> |
calcontext(f->ctx = ""); /* "." means no file */ |
140 |
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} else { |
141 |
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strcpy(sbuf,arg[ff]); /* file name is context */ |
142 |
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if (i > LCALSUF && !strcmp(sbuf+i-LCALSUF, CALSUF)) |
143 |
|
sbuf[i-LCALSUF] = '\0'; /* remove suffix */ |
144 |
< |
setcontext(f->ctx = savestr(sbuf)); |
144 |
> |
calcontext(f->ctx = savestr(sbuf)); |
145 |
|
if (!vardefined(REFVNAME)) { /* file loaded? */ |
146 |
|
loadfunc(arg[ff]); |
147 |
|
varset(REFVNAME, '=', 1.0); |
148 |
|
} else /* reference_count++ */ |
149 |
|
varset(REFVNAME, '=', varvalue(REFVNAME)+1.0); |
150 |
|
} |
151 |
< |
curfunc = NULL; /* parse expressions */ |
151 |
> |
ecurfunc = NULL; /* parse expressions */ |
152 |
|
sprintf(sbuf, "%s \"%s\"", ofun[m->otype].funame, m->oname); |
153 |
|
for (i=0, ne=0; ef && i < na; i++, ef>>=1) |
154 |
|
if (ef & 1) { /* flagged as an expression? */ |
157 |
|
initstr(arg[i], sbuf, 0); |
158 |
|
f->ep[ne++] = getE1(); |
159 |
|
if (nextc != EOF) |
160 |
< |
syntax("unexpected character"); |
160 |
> |
esyntax("unexpected character"); |
161 |
|
} |
162 |
|
if (ef) |
163 |
|
goto toofew; |
203 |
|
if ((f = (MFUNC *)m->os) == NULL) |
204 |
|
return; |
205 |
|
for (i = 0; f->ep[i] != NULL; i++) |
206 |
< |
epfree(f->ep[i]); |
206 |
> |
epfree(f->ep[i],1); |
207 |
|
if (f->ctx[0]) { /* done with definitions */ |
208 |
< |
setcontext(f->ctx); |
208 |
> |
calcontext(f->ctx); |
209 |
|
i = varvalue(REFVNAME)-.5; /* reference_count-- */ |
210 |
|
if (i > 0) |
211 |
|
varset(REFVNAME, '=', (double)i); |
234 |
|
if ((f = (MFUNC *)m->os) == NULL) |
235 |
|
objerror(m, CONSISTENCY, "setfunc called before getfunc"); |
236 |
|
|
237 |
< |
setcontext(f->ctx); /* set evaluator context */ |
237 |
> |
calcontext(f->ctx); /* set evaluator context */ |
238 |
|
/* check to see if matrix set */ |
239 |
|
if ((m == fobj) & (r->rno == lastrno)) |
240 |
|
return(0); |
256 |
|
|
257 |
|
int |
258 |
|
worldfunc( /* special function context sans object */ |
259 |
< |
char *ctx, |
259 |
> |
const char *ctx, |
260 |
|
RAY *r |
261 |
|
) |
262 |
|
{ |
265 |
|
if (rayinitcal[0]) /* initialize on first call */ |
266 |
|
initfunc(); |
267 |
|
/* set evaluator context */ |
268 |
< |
setcontext(ctx); |
268 |
> |
calcontext((char *)ctx); |
269 |
|
/* check if ray already set */ |
270 |
|
if ((fobj == NULL) & (r->rno == lastrno)) |
271 |
|
return(0); |
287 |
|
|
288 |
|
if ((ffname = getpath(fname, getrlibpath(), R_OK)) == NULL) { |
289 |
|
sprintf(errmsg, "cannot find function file \"%s\"", fname); |
290 |
< |
error(USER, errmsg); |
290 |
> |
error(SYSTEM, errmsg); |
291 |
|
} |
292 |
|
fcompile(ffname); |
293 |
+ |
doptimize(1); /* optimize definitions */ |
294 |
|
} |
295 |
|
|
296 |
|
|
300 |
|
int n; |
301 |
|
|
302 |
|
if (fobj == NULL) |
303 |
< |
error(USER, "arg(n) called without a context"); |
303 |
> |
error(USER, |
304 |
> |
"bad call to arg(n) - illegal constant in .cal file?"); |
305 |
|
|
306 |
|
n = argument(1) + .5; /* round to integer */ |
307 |
|
|
336 |
|
) |
337 |
|
{ |
338 |
|
if (fray == NULL) |
339 |
< |
syntax("ray parameter used in constant expression"); |
339 |
> |
esyntax("ray parameter used in constant expression"); |
340 |
|
|
341 |
|
if (--n < 0) |
342 |
|
goto badchan; |
355 |
|
fray->ron[2]*funcxf.xfm[2][n-3] ) |
356 |
|
/ funcxf.sca ); |
357 |
|
|
358 |
< |
if (n <= 8) /* intersection */ |
358 |
> |
if (n <= 8) { /* intersection point */ |
359 |
> |
if (fray->rot >= FHUGE*.99) |
360 |
> |
return(0.0); /* XXX should be runtime error? */ |
361 |
|
|
362 |
|
return( fray->rop[0]*funcxf.xfm[0][n-6] + |
363 |
|
fray->rop[1]*funcxf.xfm[1][n-6] + |
364 |
|
fray->rop[2]*funcxf.xfm[2][n-6] + |
365 |
|
funcxf.xfm[3][n-6] ); |
366 |
+ |
} |
367 |
|
|
368 |
|
if (n == 9) /* total distance */ |
369 |
|
return(raydist(fray,PRIMARY) * funcxf.sca); |