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
|
#ifndef ROCKBOX
#define FIXEDPOINT
#endif
#include "../src/m_pd.h"
#include <../src/m_fixed.h>
static t_class *tabplay_tilde_class;
typedef struct _tabplay_tilde
{
t_object x_obj;
t_outlet *x_bangout;
int x_phase;
int x_nsampsintab;
int x_limit;
t_sample *x_vec;
t_symbol *x_arrayname;
t_clock *x_clock;
} t_tabplay_tilde;
static void tabplay_tilde_tick(t_tabplay_tilde *x);
static void *tabplay_tilde_new(t_symbol *s)
{
t_tabplay_tilde *x = (t_tabplay_tilde *)pd_new(tabplay_tilde_class);
x->x_clock = clock_new(x, (t_method)tabplay_tilde_tick);
x->x_phase = 0x7fffffff;
x->x_limit = 0;
x->x_arrayname = s;
outlet_new(&x->x_obj, &s_signal);
x->x_bangout = outlet_new(&x->x_obj, &s_bang);
return (x);
}
static t_int *tabplay_tilde_perform(t_int *w)
{
t_tabplay_tilde *x = (t_tabplay_tilde *)(w[1]);
t_sample *out = (t_sample *)(w[2]), *fp;
int n = (int)(w[3]), phase = x->x_phase,
endphase = (x->x_nsampsintab < x->x_limit ?
x->x_nsampsintab : x->x_limit), nxfer, n3;
if (!x->x_vec || phase >= endphase)
goto zero;
nxfer = endphase - phase;
fp = x->x_vec + phase;
if (nxfer > n)
nxfer = n;
n3 = n - nxfer;
phase += nxfer;
while (nxfer--)
*out++ = *fp++;
if (phase >= endphase)
{
clock_delay(x->x_clock, 0);
x->x_phase = 0x7fffffff;
while (n3--)
*out++ = 0;
}
else x->x_phase = phase;
return (w+4);
zero:
while (n--) *out++ = 0;
return (w+4);
}
void tabplay_tilde_set(t_tabplay_tilde *x, t_symbol *s)
{
t_garray *a;
x->x_arrayname = s;
if (!(a = (t_garray *)pd_findbyclass(x->x_arrayname, garray_class)))
{
if (*s->s_name) pd_error(x, "tabplay~: %s: no such array",
x->x_arrayname->s_name);
x->x_vec = 0;
}
else if (!garray_getfloatarray(a, &x->x_nsampsintab, &x->x_vec))
{
error("%s: bad template for tabplay~", x->x_arrayname->s_name);
x->x_vec = 0;
}
else garray_usedindsp(a);
}
static void tabplay_tilde_dsp(t_tabplay_tilde *x, t_signal **sp)
{
tabplay_tilde_set(x, x->x_arrayname);
dsp_add(tabplay_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
}
static void tabplay_tilde_list(t_tabplay_tilde *x, t_symbol *s,
int argc, t_atom *argv)
{
long start = atom_getfloatarg(0, argc, argv);
long length = atom_getfloatarg(1, argc, argv);
#ifdef ROCKBOX
(void) s;
#endif
if (start < 0) start = 0;
if (length <= 0)
x->x_limit = 0x7fffffff;
else
x->x_limit = start + length;
x->x_phase = start;
}
static void tabplay_tilde_stop(t_tabplay_tilde *x)
{
x->x_phase = 0x7fffffff;
}
static void tabplay_tilde_tick(t_tabplay_tilde *x)
{
outlet_bang(x->x_bangout);
}
static void tabplay_tilde_free(t_tabplay_tilde *x)
{
clock_free(x->x_clock);
}
void tabplay_tilde_setup(void)
{
tabplay_tilde_class = class_new(gensym("tabplay~"),
(t_newmethod)tabplay_tilde_new, (t_method)tabplay_tilde_free,
sizeof(t_tabplay_tilde), 0, A_DEFSYM, 0);
class_addmethod(tabplay_tilde_class, (t_method)tabplay_tilde_dsp,
gensym("dsp"), 0);
class_addmethod(tabplay_tilde_class, (t_method)tabplay_tilde_stop,
gensym("stop"), 0);
class_addmethod(tabplay_tilde_class, (t_method)tabplay_tilde_set,
gensym("set"), A_DEFSYM, 0);
class_addlist(tabplay_tilde_class, tabplay_tilde_list);
}
|
