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
|
/* (C) Guenter Geiger <geiger@epy.co.at> */
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/time.h>
#include <unistd.h>
// int gettimeofday(struct timeval *tv, struct timezone *tz);
#include "math.h"
#include <m_pd.h>
/* ----------------------------- rtin ----------------------------- */
static t_class *rtin_class;
#define INVTWOPI 0.15915494f
typedef struct _rtin
{
t_object x_obj;
t_int fd;
t_int usec;
} t_rtin;
static void *rtin_new(t_symbol *s, int argc, t_atom *argv)
{
t_rtin *x = (t_rtin *)pd_new(rtin_class);
/* inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);*/
outlet_new(&x->x_obj, &s_float);
x->usec=0;
x->fd = open("/dev/midi00",O_RDWR|O_NDELAY);
return (x);
}
t_int *rtin_perform(t_int *w)
{
struct timeval tv;
long diff;
t_rtin* x = (t_rtin *)(w[1]);
// int n = (int)(w[2]);
char c;
if (read(x->fd,&c,1) == 1) {
gettimeofday(&tv, NULL);
diff = tv.tv_usec - x->usec;
if (diff < 0) diff+=1000000;
if (diff > 10000) outlet_float(x->x_obj.ob_outlet,diff*0.001);
x->usec=tv.tv_usec;
}
return (w+2);
}
static void rtin_dsp(t_rtin *x, t_signal **sp)
{
dsp_add(rtin_perform, 1, x);
}
void rtin_tilde_setup(void)
{
rtin_class = class_new(gensym("rtin~"), (t_newmethod)rtin_new, 0,
sizeof(t_rtin), 0, A_GIMME, 0);
class_addmethod(rtin_class, nullfn, gensym("signal"), 0);
class_addmethod(rtin_class, (t_method)rtin_dsp, gensym("dsp"), 0);
}
|
