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
|
#include "../src/m_pd.h"
#include "../src/m_fixed.h"
static t_class *clip_class;
typedef struct _clip
{
t_object x_obj;
float x_f;
t_float x_lo;
t_float x_hi;
} t_clip;
static void *clip_new(t_floatarg lo, t_floatarg hi)
{
t_clip *x = (t_clip *)pd_new(clip_class);
x->x_lo = lo;
x->x_hi = hi;
outlet_new(&x->x_obj, gensym("signal"));
floatinlet_new(&x->x_obj, &x->x_lo);
floatinlet_new(&x->x_obj, &x->x_hi);
x->x_f = 0;
return (x);
}
static t_int *clip_perform(t_int *w)
{
t_clip *x = (t_clip *)(w[1]);
t_sample *in = (t_sample *)(w[2]);
t_sample *out = (t_sample *)(w[3]);
int n = (int)(w[4]);
t_sample lo;
t_sample hi;
lo = ftofix(x->x_lo);
hi = ftofix(x->x_hi);
while (n--)
{
t_sample f = *in++;
if (f < lo) f = lo;
if (f > hi) f = hi;
*out++ = f;
}
return (w+5);
}
static void clip_dsp(t_clip *x, t_signal **sp)
{
dsp_add(clip_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
void clip_tilde_setup(void)
{
clip_class = class_new(gensym("clip~"), (t_newmethod)clip_new, 0,
sizeof(t_clip), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(clip_class, t_clip, x_f);
class_addmethod(clip_class, (t_method)clip_dsp, gensym("dsp"), 0);
}
|
