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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/* 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 "common/loud.h"
#define GATE_MINOUTS 1
#define GATE_MAXOUTS 100
#define GATE_DEFOUTS 1
typedef struct _gate
{
t_object x_ob;
int x_open;
t_pd *x_proxy;
int x_nouts; /* requested + 1 (as allocated) */
t_outlet **x_outs;
} t_gate;
typedef struct _gate_proxy
{
t_object p_ob;
t_gate *p_master;
} t_gate_proxy;
static t_class *gate_class;
static t_class *gate_proxy_class;
static void gate_proxy_bang(t_gate_proxy *x)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_bang(master->x_outs[master->x_open]);
}
static void gate_proxy_float(t_gate_proxy *x, t_float f)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_float(master->x_outs[master->x_open], f);
}
static void gate_proxy_symbol(t_gate_proxy *x, t_symbol *s)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_symbol(master->x_outs[master->x_open], s);
}
static void gate_proxy_pointer(t_gate_proxy *x, t_gpointer *gp)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_pointer(master->x_outs[master->x_open], gp);
}
static void gate_proxy_list(t_gate_proxy *x,
t_symbol *s, int ac, t_atom *av)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_list(master->x_outs[master->x_open], s, ac, av);
}
static void gate_proxy_anything(t_gate_proxy *x,
t_symbol *s, int ac, t_atom *av)
{
t_gate *master = x->p_master;
if (master->x_open)
outlet_anything(master->x_outs[master->x_open], s, ac, av);
}
static void gate_float(t_gate *x, t_float f)
{
int i = (int)f;
if (i < 0) i = 1;
if (i >= x->x_nouts) i = x->x_nouts - 1;
x->x_open = i;
}
static void gate_bang(t_gate *x)
{
outlet_float(x->x_outs[1], x->x_open);
}
static void gate_free(t_gate *x)
{
if (x->x_proxy) pd_free(x->x_proxy);
if (x->x_outs)
freebytes(x->x_outs, x->x_nouts * sizeof(*x->x_outs));
}
static void *gate_new(t_floatarg f1, t_floatarg f2)
{
t_gate *x;
int i, nouts = (int)f1;
t_outlet **outs;
t_pd *proxy;
if (nouts < GATE_MINOUTS)
nouts = GATE_DEFOUTS;
if (nouts > GATE_MAXOUTS)
loud_incompatible_max(gate_class, GATE_MAXOUTS, "outlets");
nouts++; /* for convenience (the cost is one pointer) */
if (!(outs = (t_outlet **)getbytes(nouts * sizeof(*outs))))
return (0);
if (!(proxy = pd_new(gate_proxy_class)))
{
freebytes(outs, nouts * sizeof(*outs));
return (0);
}
x = (t_gate *)pd_new(gate_class);
x->x_nouts = nouts;
x->x_outs = outs;
x->x_proxy = proxy;
((t_gate_proxy *)proxy)->p_master = x;
/* from max sdk manual: ``The dst parameter can be changed (or set to 0)
dynamically with the inlet_to function... The gate object uses this
technique to assign its inlet to one of several outlets, or no outlet
at all.'' We have to use a proxy, because Pd's outlet is not a t_pd
(besides, Pd does not handle inlets with null destination). */
inlet_new((t_object *)x, proxy, 0, 0);
for (i = 1; i < nouts; i++)
x->x_outs[i] = outlet_new((t_object *)x, &s_anything);
gate_float(x, (f2 > 0 ? f2 : 0)); /* CHECKED */
return (x);
}
void gate_setup(void)
{
gate_class = class_new(gensym("gate"),
(t_newmethod)gate_new,
(t_method)gate_free,
sizeof(t_gate), 0,
A_DEFFLOAT, A_DEFFLOAT, 0);
class_addfloat(gate_class, gate_float);
class_addbang(gate_class, gate_bang);
gate_proxy_class = class_new(gensym("_gate_proxy"), 0, 0,
sizeof(t_gate_proxy),
CLASS_PD | CLASS_NOINLET, 0);
class_addfloat(gate_proxy_class, gate_proxy_float);
class_addbang(gate_proxy_class, gate_proxy_bang);
class_addsymbol(gate_proxy_class, gate_proxy_symbol);
class_addpointer(gate_proxy_class, gate_proxy_pointer);
class_addlist(gate_proxy_class, gate_proxy_list);
class_addanything(gate_proxy_class, gate_proxy_anything);
}
|
