1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
This file contains miscelleneous C code which is required
to initialise the module and handle C<->perl function passing.
*/
/* Alternate ways of calling F77 from C */
#ifdef NO_TRAILING_USCORE
#define PGFUNX pgfunx
#define PGFUNY pgfuny
#define PGFUNT pgfunt
#define PGCONX pgconx
#else
#define PGFUNX pgfunx_
#define PGFUNY pgfuny_
#define PGFUNT pgfunt_
#define PGCONX pgconx_
#endif
/* Prototypes */
static SV* pgfunname[2];
float pgfun1();
float pgfun2();
void pgfunplot();
void PGFUNX(float fy(), int *n, float *xmin, float *xmax, int *pgflag);
void PGFUNY(float fx(), int *n, float *ymin, float *ymax, int *pgflag);
void PGFUNT(float fx(), float fy(), int *n, float *tmin, float *tmax, int *pgflag);
void PGCONX(float *a, int *idim, int *jdim, int *i1, int *i2, int *j1, int *j2,
float *c, int *nc, void plot());
/*
CPGPLOT prototypes missing in PGPLOT 5 - these handle passed
functions. Mechanism used below only works with standard UNIX
C/F77 passing. I have yet to find a system where this doesn't
work but pacthes are welcome.
*/
cpgfunx (float pgfun1(), int n, float xmin, float xmax, int pgflag) {
PGFUNX(pgfun1,&n,&xmin,&xmax,&pgflag);
}
cpgfuny (float pgfun1(), int n, float ymin, float ymax, int pgflag) {
PGFUNY(pgfun1,&n,&ymin,&ymax,&pgflag);
}
cpgfunt (float pgfun1(), float pgfun2(), int n, float tmin, float tmax,
int pgflag) {
PGFUNT(pgfun1,pgfun2,&n,&tmin,&tmax,&pgflag);
}
cpgconx ( float* a, int idim, int jdim, int i1, int i2,
int j1, int j2, float* c, int nc, void pgfunplot()) {
PGCONX(a,&idim,&jdim,&i1,&i2,&j1,&j2,c,&nc,pgfunplot);
}
/* The functions we actually pass to f77 - these call back
to the correct perl function whose names(s) are passed
via the back door (i.e. char static varables) */
/* pgplot called function perl intermediate number 1 */
float pgfun1(x)
float *x; {
dSP ;
int count;
SV* funname;
float retval;
funname = pgfunname[0]; /* Pass perl function name */
ENTER ;
SAVETMPS ;
PUSHMARK(sp) ;
/* Push arguments */
XPUSHs(sv_2mortal(newSVnv(*x)));
PUTBACK ;
/* Call Perl */
count = perl_call_sv(funname, G_SCALAR);
SPAGAIN;
if (count !=1)
croak("Error calling perl function\n");
retval = (float) POPn ; /* Return value */
PUTBACK ;
FREETMPS ;
LEAVE ;
return retval;
}
/* pgplot called function perl intermediate number 2 */
float pgfun2(x)
float *x; {
dSP ;
int count;
SV* funname;
float retval;
funname = pgfunname[1]; /* Pass perl function name */
ENTER ;
SAVETMPS ;
PUSHMARK(sp) ;
/* Push arguments */
XPUSHs(sv_2mortal(newSVnv(*x)));
PUTBACK ;
/* Call Perl */
count = perl_call_sv(funname, G_SCALAR);
SPAGAIN;
if (count !=1)
croak("Error calling perl function\n");
retval = (float) POPn ; /* Return value */
PUTBACK ;
FREETMPS ;
LEAVE ;
return retval;
}
/* pgplot called function perl intermediate for PGCONX */
void pgfunplot(visible,x,y,z)
int *visible;
float *x,*y,*z; {
dSP ;
int count;
SV* funname;
float retval;
funname = pgfunname[0]; /* Pass perl function name */
ENTER ;
SAVETMPS ;
PUSHMARK(sp) ;
/* Push arguments */
XPUSHs(sv_2mortal(newSViv(*visible)));
XPUSHs(sv_2mortal(newSVnv(*x)));
XPUSHs(sv_2mortal(newSVnv(*y)));
XPUSHs(sv_2mortal(newSVnv(*z)));
PUTBACK ;
/* Call Perl */
count = perl_call_sv(funname, G_SCALAR);
SPAGAIN;
if (count !=1)
croak("Error calling perl function\n");
PUTBACK ;
FREETMPS ;
LEAVE ;
}
|
