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/* 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"
static t_class *makenote_class;
typedef struct _hang
{
t_clock *h_clock;
struct _hang *h_next;
t_float h_pitch;
struct _makenote *h_owner;
} t_hang;
typedef struct _makenote
{
t_object x_obj;
t_float x_velo;
t_float x_dur;
t_outlet *x_pitchout;
t_outlet *x_velout;
t_hang *x_hang;
} t_makenote;
static void *makenote_new(t_floatarg velo, t_floatarg dur)
{
t_makenote *x = (t_makenote *)pd_new(makenote_class);
x->x_velo = velo;
x->x_dur = dur;
floatinlet_new(&x->x_obj, &x->x_velo);
floatinlet_new(&x->x_obj, &x->x_dur);
x->x_pitchout = outlet_new(&x->x_obj, &s_float);
x->x_velout = outlet_new(&x->x_obj, &s_float);
x->x_hang = 0;
return (x);
}
static void makenote_tick(t_hang *hang)
{
t_makenote *x = hang->h_owner;
t_hang *h2, *h3;
outlet_float(x->x_velout, 0);
outlet_float(x->x_pitchout, hang->h_pitch);
if (x->x_hang == hang) x->x_hang = hang->h_next;
else for (h2 = x->x_hang; h3 = h2->h_next; h2 = h3)
{
if (h3 == hang)
{
h2->h_next = h3->h_next;
break;
}
}
clock_free(hang->h_clock);
freebytes(hang, sizeof(*hang));
}
static void makenote_float(t_makenote *x, t_float f)
{
t_hang *hang;
if (!x->x_velo) return;
outlet_float(x->x_velout, x->x_velo);
outlet_float(x->x_pitchout, f);
hang = (t_hang *)getbytes(sizeof *hang);
hang->h_next = x->x_hang;
x->x_hang = hang;
hang->h_pitch = f;
hang->h_owner = x;
hang->h_clock = clock_new(hang, (t_method)makenote_tick);
clock_delay(hang->h_clock, (x->x_dur >= 0 ? x->x_dur : 0));
}
static void makenote_stop(t_makenote *x)
{
t_hang *hang;
while (hang = x->x_hang)
{
outlet_float(x->x_velout, 0);
outlet_float(x->x_pitchout, hang->h_pitch);
x->x_hang = hang->h_next;
clock_free(hang->h_clock);
freebytes(hang, sizeof(*hang));
}
}
static void makenote_clear(t_makenote *x)
{
t_hang *hang;
while (hang = x->x_hang)
{
x->x_hang = hang->h_next;
clock_free(hang->h_clock);
freebytes(hang, sizeof(*hang));
}
}
void makenote_setup(void)
{
makenote_class = class_new(gensym("makenote"),
(t_newmethod)makenote_new, (t_method)makenote_clear,
sizeof(t_makenote), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addfloat(makenote_class, makenote_float);
class_addmethod(makenote_class, (t_method)makenote_stop, gensym("stop"),
0);
class_addmethod(makenote_class, (t_method)makenote_clear, gensym("clear"),
0);
}
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