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
|
/* Copyright (c) 1997-2001 Miller Puckette and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* MIDI. */
#include "m_pd.h"
void outmidi_programchange(int portno, int channel, int value);
static t_class *pgmout_class;
typedef struct _pgmout
{
t_object x_obj;
t_float x_channel;
} t_pgmout;
static void *pgmout_new(t_floatarg channel)
{
t_pgmout *x = (t_pgmout *)pd_new(pgmout_class);
if (channel <= 0) channel = 1;
x->x_channel = channel;
floatinlet_new(&x->x_obj, &x->x_channel);
return (x);
}
static void pgmout_float(t_pgmout *x, t_floatarg f)
{
int binchan = x->x_channel - 1;
int n = f - 1;
if (binchan < 0)
binchan = 0;
if (n < 0) n = 0;
else if (n > 127) n = 127;
outmidi_programchange((binchan >> 4),
(binchan & 15), n);
}
void pgmout_setup(void)
{
pgmout_class = class_new(gensym("pgmout"), (t_newmethod)pgmout_new, 0,
sizeof(t_pgmout), 0, A_DEFFLOAT, 0);
class_addfloat(pgmout_class, pgmout_float);
class_sethelpsymbol(pgmout_class, gensym("midi"));
}
|
