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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
|
/* 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 <string.h>
#include "m_pd.h"
#include "shared.h"
#include "sickle/sic.h"
#include "sickle/arsic.h"
typedef struct _record
{
t_arsic x_arsic;
float x_startpoint; /* the inputs */
float x_endpoint;
int x_appendmode;
int x_loopmode;
int x_startindex;
int x_endindex; /* (one past last record position) */
int x_pauseindex;
int x_phase; /* writing head */
float x_sync;
float x_syncincr;
int x_isrunning; /* to know if sync should be 0.0 or 1.0 */
t_clock *x_clock;
} t_record;
static t_class *record_class;
static void record_tick(t_record *x)
{
arsic_redraw((t_arsic *)x);
}
static void record_setsync(t_record *x)
{
/* CHECKED: clipped to array size -- using indices, not points */
float range = (float)(x->x_endindex - x->x_startindex);
int phase = x->x_phase;
if (phase == SHARED_INT_MAX || range < 1.0)
{
x->x_sync = (x->x_isrunning ? 1.0 : 0); /* CHECKED */
x->x_syncincr = 0;
}
else
{
x->x_sync = (float)(phase - x->x_startindex) / range;
x->x_syncincr = 1.0 / range;
}
}
static void record_mstoindex(t_record *x)
{
t_arsic *sic = (t_arsic *)x;
x->x_startindex = (int)(x->x_startpoint * sic->s_ksr);
if (x->x_startindex < 0)
x->x_startindex = 0; /* CHECKED */
x->x_endindex = (int)(x->x_endpoint * sic->s_ksr);
if (x->x_endindex > sic->s_vecsize
|| x->x_endindex <= 0)
x->x_endindex = sic->s_vecsize; /* CHECKED (both ways) */
record_setsync(x);
}
static void record_set(t_record *x, t_symbol *s)
{
arsic_setarray((t_arsic *)x, s, 1);
record_mstoindex(x);
}
static void record_startpoint(t_record *x, t_floatarg f)
{
x->x_startpoint = f;
record_mstoindex(x);
}
static void record_endpoint(t_record *x, t_floatarg f)
{
x->x_endpoint = f;
record_mstoindex(x);
}
static void record_float(t_record *x, t_float f)
{
if (x->x_isrunning = (f != 0))
{
/* CHECKED: no (re)start in append mode */
/* LATER consider restart if x->x_pauseindex == SHARED_INT_MAX */
x->x_phase = x->x_appendmode ? x->x_pauseindex : x->x_startindex;
if (x->x_phase >= x->x_endindex) x->x_phase = SHARED_INT_MAX;
}
else if (x->x_phase != SHARED_INT_MAX) /* CHECKED: no rewind */
{
record_tick(x);
x->x_pauseindex = x->x_phase;
x->x_phase = SHARED_INT_MAX;
}
record_setsync(x);
}
static void record_append(t_record *x, t_floatarg f)
{
if (f != 0)
{
x->x_appendmode = 1; /* CHECKED: always allow appending */
}
else x->x_appendmode = 0;
}
static void record_loop(t_record *x, t_floatarg f)
{
x->x_loopmode = (f != 0);
}
static t_int *record_perform(t_int *w)
{
t_arsic *sic = (t_arsic *)(w[1]);
int nblock = (int)(w[2]);
int nch = sic->s_nchannels;
t_float *out = (t_float *)(w[3 + nch]);
t_record *x = (t_record *)sic;
int phase = x->x_phase;
int endphase = x->x_endindex;
float sync = x->x_sync;
if (sic->s_playable && endphase > phase)
{
int vecsize = sic->s_vecsize;
float syncincr = x->x_syncincr;
int ch, over, i, nxfer;
loopover:
if ((nxfer = endphase - phase) > nblock)
{
nxfer = nblock;
over = 0;
}
else over = 1;
ch = nch;
while (ch--)
{
t_float *vp = sic->s_vectors[ch];
if (vp)
{
t_float *ip = (t_float *)(w[3 + ch]);
vp += phase;
i = nxfer;
/* LATER consider handling under and overflows */
while (i--) *vp++ = *ip++;
}
}
i = nxfer;
while (i--)
{
*out++ = sync;
sync += syncincr;
}
if (over)
{
nblock -= nxfer;
if (x->x_loopmode
&& (phase = x->x_startindex) < endphase)
{
x->x_phase = phase;
x->x_sync = sync = 0;
if (nblock > 0) goto loopover;
goto done;
}
clock_delay(x->x_clock, 0);
/* CHECKED: no restart in append mode */
x->x_pauseindex = SHARED_INT_MAX;
x->x_phase = SHARED_INT_MAX;
x->x_sync = 1.0;
x->x_syncincr = 0;
}
else
{
x->x_phase += nxfer;
x->x_sync = sync;
goto done;
}
}
while (nblock--) *out++ = sync;
done:
return (w + sic->s_nperfargs + 1);
}
static void record_dsp(t_record *x, t_signal **sp)
{
arsic_dsp((t_arsic *)x, sp, record_perform, 1);
record_mstoindex(x);
}
static void record_free(t_record *x)
{
arsic_free((t_arsic *)x);
if (x->x_clock) clock_free(x->x_clock);
}
static void *record_new(t_symbol *s, t_floatarg f)
{
/* one auxiliary signal: sync output */
t_record *x = (t_record *)arsic_new(record_class, s, (int)f, 0, 1);
if (x)
{
int nch = arsic_getnchannels((t_arsic *)x);
arsic_setminsize((t_arsic *)x, 2);
x->x_startpoint = 0;
x->x_endpoint = 0;
x->x_appendmode = 0;
x->x_loopmode = 0;
x->x_pauseindex = SHARED_INT_MAX;
x->x_phase = SHARED_INT_MAX;
x->x_isrunning = 0;
record_mstoindex(x);
x->x_clock = clock_new(x, (t_method)record_tick);
while (--nch)
inlet_new((t_object *)x, (t_pd *)x, &s_signal, &s_signal);
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft-2"));
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft-1"));
outlet_new((t_object *)x, &s_signal);
}
return (x);
}
void record_tilde_setup(void)
{
record_class = class_new(gensym("record~"),
(t_newmethod)record_new,
(t_method)record_free,
sizeof(t_record), 0,
A_DEFSYM, A_DEFFLOAT, 0);
arsic_setup(record_class, record_dsp, record_float);
class_addmethod(record_class, (t_method)record_startpoint,
gensym("ft-2"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_endpoint,
gensym("ft-1"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_append,
gensym("append"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_loop,
gensym("loop"), A_FLOAT, 0);
class_addmethod(record_class, (t_method)record_set,
gensym("set"), A_SYMBOL, 0);
}
|
