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
|
/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#include "m_pd.h"
#include "sickle/sic.h"
typedef struct _minmax
{
t_sic x_sic;
t_float x_min;
t_float x_max;
t_outlet *x_minout;
t_outlet *x_maxout;
} t_minmax;
static t_class *minmax_class;
static void minmax_bang(t_minmax *x)
{
outlet_float(x->x_maxout, x->x_max);
outlet_float(x->x_minout, x->x_min);
}
static void minmax_reset(t_minmax *x)
{
x->x_min = x->x_max = 0; /* CHECKME */
}
static t_int *minmax_perform(t_int *w)
{
t_minmax *x = (t_minmax *)(w[1]);
int nblock = (int)(w[2]);
t_float *in = (t_float *)(w[3]);
t_float *outmin = (t_float *)(w[4]);
t_float *outmax = (t_float *)(w[5]);
t_float fmin = x->x_min;
t_float fmax = x->x_max;
while (nblock--)
{
t_float f = *in++;
if (f < fmin) fmin = f;
else if (f > fmax) fmax = f;
*outmin++ = fmin;
*outmax++ = fmax;
}
x->x_min = fmin;
x->x_max = fmax;
return (w + 6);
}
static void minmax_dsp(t_minmax *x, t_signal **sp)
{
dsp_add(minmax_perform, 5, x, sp[0]->s_n, sp[0]->s_vec,
sp[1]->s_vec, sp[2]->s_vec);
}
static void *minmax_new(void)
{
t_minmax *x = (t_minmax *)pd_new(minmax_class);
outlet_new((t_object *)x, &s_signal);
outlet_new((t_object *)x, &s_signal);
x->x_minout = outlet_new((t_object *)x, &s_float);
x->x_maxout = outlet_new((t_object *)x, &s_float);
minmax_reset(x);
return (x);
}
void minmax_tilde_setup(void)
{
minmax_class = class_new(gensym("minmax~"),
(t_newmethod)minmax_new, 0,
sizeof(t_minmax), 0, 0);
sic_setup(minmax_class, minmax_dsp, SIC_FLOATTOSIGNAL);
class_addbang(minmax_class, minmax_bang);
class_addmethod(minmax_class, (t_method)minmax_reset,
gensym("reset"), 0);
}
|
