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
243
244
245
246
247
248
249
250
251
252
253
254
255
|
/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001,2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
/*! \file flbuf.cpp
\brief Implementation of the buffer abstraction class.
*/
#include "flext.h"
#ifdef MAXMSP
#include "flmspbuffer.h" // include inofficial buffer.h
#endif
#ifdef PD
#define DIRTY_INTERVAL 0 // buffer dirty check in msec
#endif
flext::buffer::buffer(const t_symbol *bn,bool delayed):
sym(NULL),data(NULL),
chns(0),frames(0)
{
#ifdef PD
arr = NULL;
interval = DIRTY_INTERVAL;
isdirty = false;
ticking = false;
tick = clock_new(this,(t_method)cb_tick);
#endif
if(bn) Set(bn,delayed);
}
flext::buffer::~buffer()
{
#ifdef PD
clock_free(tick);
#endif
}
int flext::buffer::Set(const t_symbol *s,bool nameonly)
{
int ret = 0;
bool valid = data != NULL; // valid now? (before change)
if(s && sym != s) {
ret = -1;
data = NULL;
frames = 0;
chns = 0;
}
if(s && *s->s_name) sym = s;
if(!sym) {
if(valid) ret = -1;
}
else if(!nameonly) {
#ifdef PD
int frames1;
t_sample *data1;
arr = (t_garray *)pd_findbyclass(const_cast<t_symbol *>(sym), garray_class);
if(!arr)
{
if (*sym->s_name) error("buffer: no such array '%s'",sym->s_name);
sym = NULL;
if(valid) ret = -1;
}
else if(!garray_getfloatarray(arr, &frames1, &data1))
{
error("buffer: bad template '%s'", sym->s_name);
data = NULL;
frames = 0;
if(valid) ret = -1;
}
else {
garray_usedindsp(arr);
if(frames != frames1) { frames = frames1; if(!ret) ret = 1; }
if(data != data1) { data = data1; if(!ret) ret = 1; }
chns = 1;
}
#elif defined(MAXMSP)
if(sym->s_thing) {
const _buffer *p = (const _buffer *)sym->s_thing;
if(NOGOOD(p)) {
post("buffer: buffer object '%s' no good",sym->s_name);
if(valid) ret = -1;
}
else {
#ifdef DEBUG
post("%s: buffer object '%s' - valid:%i samples:%i channels:%i frames:%i",thisName(),bufname->s_name,p->b_valid,p->b_frames,p->b_nchans,p->b_frames);
#endif
if(data != p->b_samples) { data = p->b_samples; if(!ret) ret = 1; }
if(chns != p->b_nchans) { chns = p->b_nchans; if(!ret) ret = 1; }
if(frames != p->b_frames) { frames = p->b_frames; if(!ret) ret = 1; }
}
}
else {
error("buffer: symbol '%s' not defined", sym->s_name);
if(valid) ret = -1;
}
#endif
}
return ret;
}
bool flext::buffer::Update()
{
if(!Ok()) return false;
#ifdef PD
int frames1;
t_sample *data1;
if(!garray_getfloatarray(arr, &frames1, &data1)) {
frames = 0;
data = NULL;
chns = 0;
return true;
}
else if(data != data1 || frames != frames1) {
frames = frames1;
data = data1;
return true;
}
else
return false;
#else // MAXMSP
if(!sym->s_thing)
return false;
else {
const _buffer *p = (const _buffer *)sym->s_thing;
if(data != p->b_samples || chns != p->b_nchans || frames != p->b_frames) {
data = p->b_samples;
chns = p->b_nchans;
frames = p->b_frames;
return true;
}
else
return false;
}
#endif
}
void flext::buffer::Frames(int fr,bool keep)
{
#ifdef PD
::garray_resize(arr,(float)fr);
Update();
#else
t_sample *tmp = NULL;
int sz = frames;
if(fr < sz) sz = fr;
if(keep) {
// copy buffer data to tmp storage
tmp = new t_sample[sz];
if(tmp)
BlockMoveData(data,tmp,sizeof(t_sample)*sz);
else
error("flext::buffer - not enough memory for keeping buffer~ contents");
}
t_atom msg;
_buffer *buf = (_buffer *)sym->s_thing;
// b_msr reflects buffer sample rate... is this what we want?
// Max bug: adding small value 0.001 to get right sample count
float ms = fr/buf->b_msr+0.001;
SetFloat(msg,ms);
::typedmess((object *)buf,gensym("size"),1,&msg);
Update();
if(tmp) {
// copy data back
BlockMoveData(tmp,data,sizeof(t_sample)*sz);
delete[] tmp;
}
#endif
}
#ifdef PD
void flext::buffer::SetRefrIntv(float intv)
{
interval = intv;
if(interval == 0 && ticking) {
clock_unset(tick);
ticking = false;
}
}
#else
void flext::buffer::SetRefrIntv(float) {}
#endif
void flext::buffer::Dirty(bool force)
{
if(sym) {
#ifdef PD
if((!ticking) && (interval || force)) {
ticking = true;
cb_tick(this); // immediately redraw
}
else {
if(force) clock_delay(tick,0);
isdirty = true;
}
#elif defined(MAXMSP)
if(sym->s_thing) {
_buffer *p = (_buffer *)sym->s_thing;
if(NOGOOD(p)) {
post("buffer: buffer object '%s' no good",sym->s_name);
}
else {
p->b_modtime = gettime();
}
}
else {
error("buffer: symbol '%s' not defined",sym->s_name);
}
#endif
}
}
#ifdef PD
void flext::buffer::cb_tick(buffer *b)
{
if(b->arr) garray_redraw(b->arr);
#ifdef _DEBUG
else error("buffer: array is NULL");
#endif
if(b->isdirty && b->interval) {
b->isdirty = false;
b->ticking = true;
clock_delay(b->tick,b->interval);
}
else
b->ticking = false;
}
#endif
|
