14 |
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|
15 |
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#include "otypes.h" |
16 |
|
|
17 |
+ |
#include "func.h" |
18 |
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|
19 |
+ |
|
20 |
|
#define INITFILE "rayinit.cal" |
21 |
< |
#define DEFVNAME "FILE_LOADED`" |
21 |
> |
#define REFVNAME "`FILE_REFCNT" |
22 |
> |
#define CALSUF ".cal" |
23 |
> |
#define LCALSUF 4 |
24 |
|
|
25 |
|
XF unitxf = { /* identity transform */ |
26 |
|
1.0, 0.0, 0.0, 0.0, |
34 |
|
static OBJREC *fobj = NULL; /* current function object */ |
35 |
|
static RAY *fray = NULL; /* current function ray */ |
36 |
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|
37 |
+ |
static double l_erf(), l_erfc(), l_arg(); |
38 |
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|
39 |
< |
setmap(m, r, bx) /* set channels for function call */ |
39 |
> |
|
40 |
> |
MFUNC * |
41 |
> |
getfunc(m, ff, ef, dofwd) /* get function for this modifier */ |
42 |
|
OBJREC *m; |
43 |
+ |
int ff; |
44 |
+ |
unsigned ef; |
45 |
+ |
int dofwd; |
46 |
+ |
{ |
47 |
+ |
extern EPNODE *curfunc; |
48 |
+ |
static char initfile[] = INITFILE; |
49 |
+ |
char sbuf[MAXSTR]; |
50 |
+ |
register char **arg; |
51 |
+ |
register MFUNC *f; |
52 |
+ |
int ne, na; |
53 |
+ |
register int i; |
54 |
+ |
/* check to see if done already */ |
55 |
+ |
if ((f = (MFUNC *)m->os) != NULL) |
56 |
+ |
return(f); |
57 |
+ |
if (initfile[0]) { /* initialize on first call */ |
58 |
+ |
setcontext(""); |
59 |
+ |
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
60 |
+ |
scompile("Nx=$4;Ny=$5;Nz=$6;", NULL, 0); |
61 |
+ |
scompile("Px=$7;Py=$8;Pz=$9;", NULL, 0); |
62 |
+ |
scompile("T=$10;Rdot=$11;", NULL, 0); |
63 |
+ |
scompile("S=$12;Tx=$13;Ty=$14;Tz=$15;", NULL, 0); |
64 |
+ |
scompile("Ix=$16;Iy=$17;Iz=$18;", NULL, 0); |
65 |
+ |
scompile("Jx=$19;Jy=$20;Jz=$21;", NULL, 0); |
66 |
+ |
scompile("Kx=$22;Ky=$23;Kz=$24;", NULL, 0); |
67 |
+ |
funset("arg", 1, '=', l_arg); |
68 |
+ |
funset("erf", 1, ':', l_erf); |
69 |
+ |
funset("erfc", 1, ':', l_erfc); |
70 |
+ |
setnoisefuncs(); |
71 |
+ |
loadfunc(initfile); |
72 |
+ |
initfile[0] = '\0'; |
73 |
+ |
} |
74 |
+ |
if ((na = m->oargs.nsargs) <= ff) |
75 |
+ |
goto toofew; |
76 |
+ |
arg = m->oargs.sarg; |
77 |
+ |
if ((f = (MFUNC *)calloc(1, sizeof(MFUNC))) == NULL) |
78 |
+ |
goto memerr; |
79 |
+ |
i = strlen(arg[ff]); /* set up context */ |
80 |
+ |
if (i == 1 && arg[ff][0] == '.') |
81 |
+ |
setcontext(f->ctx = ""); /* "." means no file */ |
82 |
+ |
else { |
83 |
+ |
strcpy(sbuf,m->oargs.sarg[ff]); /* file name is context */ |
84 |
+ |
if (i > LCALSUF && !strcmp(sbuf+i-LCALSUF, CALSUF)) |
85 |
+ |
sbuf[i-LCALSUF] = '\0'; /* remove suffix */ |
86 |
+ |
setcontext(f->ctx = savestr(sbuf)); |
87 |
+ |
if (!vardefined(REFVNAME)) { /* file loaded? */ |
88 |
+ |
loadfunc(m->oargs.sarg[ff]); |
89 |
+ |
varset(REFVNAME, '=', 1.0); |
90 |
+ |
} else /* reference_count++ */ |
91 |
+ |
varset(REFVNAME, '=', varvalue(REFVNAME)+1.0); |
92 |
+ |
} |
93 |
+ |
curfunc = NULL; /* parse expressions */ |
94 |
+ |
sprintf(sbuf, "%s \"%s\"", ofun[m->otype].funame, m->oname); |
95 |
+ |
for (i=0, ne=0; ef && i < na; i++, ef>>=1) |
96 |
+ |
if (ef & 1) { /* flagged as an expression? */ |
97 |
+ |
if (ne >= MAXEXPR) |
98 |
+ |
objerror(m, INTERNAL, "too many expressions"); |
99 |
+ |
initstr(arg[i], sbuf, 0); |
100 |
+ |
f->ep[ne++] = getE1(); |
101 |
+ |
if (nextc != EOF) |
102 |
+ |
syntax("unexpected character"); |
103 |
+ |
} |
104 |
+ |
if (ef) |
105 |
+ |
goto toofew; |
106 |
+ |
if (i <= ff) /* find transform args */ |
107 |
+ |
i = ff+1; |
108 |
+ |
while (i < na && arg[i][0] != '-') |
109 |
+ |
i++; |
110 |
+ |
if (i == na) /* no transform */ |
111 |
+ |
f->f = f->b = &unitxf; |
112 |
+ |
else { /* get transform */ |
113 |
+ |
if ((f->b = (XF *)malloc(sizeof(XF))) == NULL) |
114 |
+ |
goto memerr; |
115 |
+ |
if (invxf(f->b, na-i, arg+i) != na-i) |
116 |
+ |
objerror(m, USER, "bad transform"); |
117 |
+ |
if (f->b->sca < 0.0) |
118 |
+ |
f->b->sca = -f->b->sca; |
119 |
+ |
if (dofwd) { /* do both transforms */ |
120 |
+ |
if ((f->f = (XF *)malloc(sizeof(XF))) == NULL) |
121 |
+ |
goto memerr; |
122 |
+ |
xf(f->f, na-i, arg+i); |
123 |
+ |
if (f->f->sca < 0.0) |
124 |
+ |
f->f->sca = -f->f->sca; |
125 |
+ |
} |
126 |
+ |
} |
127 |
+ |
m->os = (char *)f; |
128 |
+ |
return(f); |
129 |
+ |
toofew: |
130 |
+ |
objerror(m, USER, "too few arguments"); |
131 |
+ |
memerr: |
132 |
+ |
error(SYSTEM, "out of memory in getfunc"); |
133 |
+ |
} |
134 |
+ |
|
135 |
+ |
|
136 |
+ |
freefunc(m) /* free memory associated with modifier */ |
137 |
+ |
OBJREC *m; |
138 |
+ |
{ |
139 |
+ |
register MFUNC *f; |
140 |
+ |
register int i; |
141 |
+ |
|
142 |
+ |
if ((f = (MFUNC *)m->os) == NULL) |
143 |
+ |
return; |
144 |
+ |
for (i = 0; f->ep[i] != NULL; i++) |
145 |
+ |
epfree(f->ep[i]); |
146 |
+ |
if (f->ctx[0]) { /* done with definitions */ |
147 |
+ |
setcontext(f->ctx); |
148 |
+ |
i = varvalue(REFVNAME)-.5; /* reference_count-- */ |
149 |
+ |
if (i > 0) |
150 |
+ |
varset(REFVNAME, '=', (double)i); |
151 |
+ |
else |
152 |
+ |
dcleanup(2); /* remove definitions */ |
153 |
+ |
freestr(f->ctx); |
154 |
+ |
} |
155 |
+ |
if (f->b != &unitxf) |
156 |
+ |
free((char *)f->b); |
157 |
+ |
if (f->f != NULL && f->f != &unitxf) |
158 |
+ |
free((char *)f->f); |
159 |
+ |
free((char *)f); |
160 |
+ |
m->os = NULL; |
161 |
+ |
} |
162 |
+ |
|
163 |
+ |
|
164 |
+ |
setfunc(m, r) /* set channels for function call */ |
165 |
+ |
OBJREC *m; |
166 |
|
register RAY *r; |
37 |
– |
XF *bx; |
167 |
|
{ |
39 |
– |
extern long eclock; |
168 |
|
static long lastrno = -1; |
169 |
< |
/* check to see if already set */ |
169 |
> |
register MFUNC *f; |
170 |
> |
/* get function */ |
171 |
> |
if ((f = (MFUNC *)m->os) == NULL) |
172 |
> |
error(m, CONSISTENCY, "setfunc called before getfunc"); |
173 |
> |
/* set evaluator context */ |
174 |
> |
setcontext(f->ctx); |
175 |
> |
/* check to see if matrix set */ |
176 |
|
if (m == fobj && r->rno == lastrno) |
177 |
|
return(0); |
178 |
|
fobj = m; |
179 |
|
fray = r; |
180 |
|
if (r->rox != NULL) |
181 |
< |
if (bx != &unitxf) { |
182 |
< |
funcxf.sca = r->rox->b.sca * bx->sca; |
183 |
< |
multmat4(funcxf.xfm, r->rox->b.xfm, bx->xfm); |
181 |
> |
if (f->b != &unitxf) { |
182 |
> |
funcxf.sca = r->rox->b.sca * f->b->sca; |
183 |
> |
multmat4(funcxf.xfm, r->rox->b.xfm, f->b->xfm); |
184 |
|
} else |
185 |
|
copystruct(&funcxf, &r->rox->b); |
186 |
|
else |
187 |
< |
copystruct(&funcxf, bx); |
187 |
> |
copystruct(&funcxf, f->b); |
188 |
|
lastrno = r->rno; |
189 |
|
eclock++; /* notify expression evaluator */ |
190 |
|
return(1); |
191 |
|
} |
192 |
|
|
193 |
|
|
60 |
– |
setfunc(m, r) /* simplified interface to setmap */ |
61 |
– |
register OBJREC *m; |
62 |
– |
RAY *r; |
63 |
– |
{ |
64 |
– |
register XF *mxf; |
65 |
– |
|
66 |
– |
if ((mxf = (XF *)m->os) == NULL) { |
67 |
– |
register int n; |
68 |
– |
register char **sa; |
69 |
– |
|
70 |
– |
for (n = m->oargs.nsargs, sa = m->oargs.sarg; |
71 |
– |
n > 0 && **sa != '-'; n--, sa++) |
72 |
– |
; |
73 |
– |
if (n == 0) |
74 |
– |
mxf = &unitxf; |
75 |
– |
else { |
76 |
– |
mxf = (XF *)malloc(sizeof(XF)); |
77 |
– |
if (mxf == NULL) |
78 |
– |
goto memerr; |
79 |
– |
if (invxf(mxf, n, sa) != n) |
80 |
– |
objerror(m, USER, "bad transform"); |
81 |
– |
if (mxf->sca < 0.0) |
82 |
– |
mxf->sca = -mxf->sca; |
83 |
– |
} |
84 |
– |
m->os = (char *)mxf; |
85 |
– |
} |
86 |
– |
return(setmap(m, r, mxf)); |
87 |
– |
memerr: |
88 |
– |
error(SYSTEM, "out of memory in setfunc"); |
89 |
– |
} |
90 |
– |
|
91 |
– |
|
194 |
|
loadfunc(fname) /* load definition file */ |
195 |
|
char *fname; |
196 |
|
{ |
205 |
|
} |
206 |
|
|
207 |
|
|
208 |
< |
double |
208 |
> |
static double |
209 |
|
l_arg() /* return nth real argument */ |
210 |
|
{ |
211 |
|
extern double argument(); |
224 |
|
} |
225 |
|
|
226 |
|
|
227 |
< |
double |
227 |
> |
static double |
228 |
|
l_erf() /* error function */ |
229 |
|
{ |
230 |
|
extern double erf(); |
233 |
|
} |
234 |
|
|
235 |
|
|
236 |
< |
double |
236 |
> |
static double |
237 |
|
l_erfc() /* cumulative error function */ |
238 |
|
{ |
239 |
|
extern double erfc(); |
240 |
|
|
241 |
|
return(erfc(argument(1))); |
140 |
– |
} |
141 |
– |
|
142 |
– |
|
143 |
– |
funcfile(fname) /* set context, load file if necessary */ |
144 |
– |
register char *fname; |
145 |
– |
{ |
146 |
– |
extern char *setcontext(); |
147 |
– |
static char initfile[] = INITFILE; |
148 |
– |
|
149 |
– |
if (initfile[0]) { /* initialize on first call */ |
150 |
– |
setcontext(""); |
151 |
– |
scompile("Dx=$1;Dy=$2;Dz=$3;", NULL, 0); |
152 |
– |
scompile("Nx=$4;Ny=$5;Nz=$6;", NULL, 0); |
153 |
– |
scompile("Px=$7;Py=$8;Pz=$9;", NULL, 0); |
154 |
– |
scompile("T=$10;Rdot=$11;", NULL, 0); |
155 |
– |
scompile("S=$12;Tx=$13;Ty=$14;Tz=$15;", NULL, 0); |
156 |
– |
scompile("Ix=$16;Iy=$17;Iz=$18;", NULL, 0); |
157 |
– |
scompile("Jx=$19;Jy=$20;Jz=$21;", NULL, 0); |
158 |
– |
scompile("Kx=$22;Ky=$23;Kz=$24;", NULL, 0); |
159 |
– |
funset("arg", 1, '=', l_arg); |
160 |
– |
funset("erf", 1, ':', l_erf); |
161 |
– |
funset("erfc", 1, ':', l_erfc); |
162 |
– |
setnoisefuncs(); |
163 |
– |
loadfunc(initfile); |
164 |
– |
initfile[0] = '\0'; |
165 |
– |
} |
166 |
– |
if (fname[0] == '.' && fname[1] == '\0') |
167 |
– |
setcontext(""); /* "." means no file */ |
168 |
– |
else { |
169 |
– |
setcontext(fname); |
170 |
– |
if (!vardefined(DEFVNAME)) { |
171 |
– |
loadfunc(fname); |
172 |
– |
varset(DEFVNAME, ':', 1.0); |
173 |
– |
} |
174 |
– |
} |
242 |
|
} |
243 |
|
|
244 |
|
|