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
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
|
// ----------------------------------------------------------------------------
//
// Copyright (C) 2006-2018 Fons Adriaensen <fons@linuxaudio.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
#ifndef _ZITA_CONVOLVER_H
#define _ZITA_CONVOLVER_H
#include <pthread.h>
#include <stdint.h>
#include <fftw3.h>
#define ZITA_CONVOLVER_MAJOR_VERSION 4
#define ZITA_CONVOLVER_MINOR_VERSION 0
extern int zita_convolver_major_version (void);
extern int zita_convolver_minor_version (void);
// ----------------------------------------------------------------------------
#ifdef ZCSEMA_IS_IMPLEMENTED
#undef ZCSEMA_IS_IMPLEMENTED
#endif
//XXX DZ: Hack for windows/osx10.5
#include "zcsema-osx-win-compat.h"
#if defined(__linux__) || defined(__GNU__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <semaphore.h>
class ZCsema
{
public:
ZCsema (void) { init (0, 0); }
~ZCsema (void) { sem_destroy (&_sema); }
ZCsema (const ZCsema&); // disabled
ZCsema& operator= (const ZCsema&); // disabled
int init (int s, int v) { return sem_init (&_sema, s, v); }
int post (void) { return sem_post (&_sema); }
int wait (void) { return sem_wait (&_sema); }
int trywait (void) { return sem_trywait (&_sema); }
private:
sem_t _sema;
};
#define ZCSEMA_IS_IMPLEMENTED
#endif
#ifdef __APPLE__
// NOTE: ***** I DO NOT REPEAT NOT PROVIDE SUPPORT FOR OSX *****
//
// The following code partially emulates the POSIX sem_t for which
// OSX has only a crippled implementation. It may or may not compile,
// and if it compiles it may or may not work correctly. Blame APPLE
// for not following POSIX standards.
class ZCsema
{
public:
ZCsema (void) : _count (0)
{
init (0, 0);
}
~ZCsema (void)
{
pthread_mutex_destroy (&_mutex);
pthread_cond_destroy (&_cond);
}
ZCsema (const ZCsema&); // disabled
ZCsema& operator= (const ZCsema&); // disabled
int init (int s, int v)
{
_count = v;
return pthread_mutex_init (&_mutex, 0) || pthread_cond_init (&_cond, 0);
}
int post (void)
{
pthread_mutex_lock (&_mutex);
_count++;
if (_count == 1) pthread_cond_signal (&_cond);
pthread_mutex_unlock (&_mutex);
return 0;
}
int wait (void)
{
pthread_mutex_lock (&_mutex);
while (_count < 1) pthread_cond_wait (&_cond, &_mutex);
_count--;
pthread_mutex_unlock (&_mutex);
return 0;
}
int trywait (void)
{
if (pthread_mutex_trylock (&_mutex)) return -1;
if (_count < 1)
{
pthread_mutex_unlock (&_mutex);
return -1;
}
_count--;
pthread_mutex_unlock (&_mutex);
return 0;
}
private:
int _count;
pthread_mutex_t _mutex;
pthread_cond_t _cond;
};
#define ZCSEMA_IS_IMPLEMENTED
#endif
#ifndef ZCSEMA_IS_IMPLEMENTED
#error "The ZCsema class is not implemented."
#endif
// ----------------------------------------------------------------------------
class Inpnode
{
private:
friend class Convlevel;
Inpnode (uint16_t inp);
~Inpnode (void);
void alloc_ffta (uint16_t npar, int32_t size);
void free_ffta (void);
Inpnode *_next;
fftwf_complex **_ffta;
uint16_t _npar;
uint16_t _inp;
};
class Macnode
{
private:
friend class Convlevel;
Macnode (Inpnode *inpn);
~Macnode (void);
void alloc_fftb (uint16_t npar);
void free_fftb (void);
Macnode *_next;
Inpnode *_inpn;
Macnode *_link;
fftwf_complex **_fftb;
uint16_t _npar;
};
class Outnode
{
private:
friend class Convlevel;
Outnode (uint16_t out, int32_t size);
~Outnode (void);
Outnode *_next;
Macnode *_list;
float *_buff [3];
uint16_t _out;
};
class Converror
{
public:
enum
{
BAD_STATE = -1,
BAD_PARAM = -2,
MEM_ALLOC = -3
};
Converror (int error) : _error (error) {}
private:
int _error;
};
class Convlevel
{
private:
friend class Convproc;
enum
{
OPT_FFTW_MEASURE = 1,
OPT_VECTOR_MODE = 2,
OPT_LATE_CONTIN = 4
};
enum
{
ST_IDLE,
ST_TERM,
ST_PROC
};
Convlevel (void);
~Convlevel (void);
void configure (int prio,
uint32_t offs,
uint32_t npar,
uint32_t parsize,
uint32_t options);
void impdata_write (uint32_t inp,
uint32_t out,
int32_t step,
float *data,
int32_t ind0,
int32_t ind1,
bool create);
void impdata_clear (uint32_t inp,
uint32_t out);
void impdata_link (uint32_t inp1,
uint32_t out1,
uint32_t inp2,
uint32_t out2);
void reset (uint32_t inpsize,
uint32_t outsize,
float **inpbuff,
float **outbuff);
void start (int absprio, int policy);
void process (bool sync);
int readout (bool sync, uint32_t skipcnt);
void stop (void);
void cleanup (void);
void fftswap (fftwf_complex *p);
void print (FILE *F);
static void *static_main (void *arg);
void main (void);
Macnode *findmacnode (uint32_t inp, uint32_t out, bool create);
volatile uint32_t _stat; // current processing state
int _prio; // relative priority
uint32_t _offs; // offset from start of impulse response
uint32_t _npar; // number of partitions
uint32_t _parsize; // partition and outbut buffer size
uint32_t _outsize; // step size for output buffer
uint32_t _outoffs; // offset into output buffer
uint32_t _inpsize; // size of shared input buffer
uint32_t _inpoffs; // offset into input buffer
uint32_t _options; // various options
uint32_t _ptind; // rotating partition index
uint32_t _opind; // rotating output buffer index
int _bits; // bit identifiying this level
int _wait; // number of unfinished cycles
pthread_t _pthr; // posix thread executing this level
ZCsema _trig; // sema used to trigger a cycle
ZCsema _done; // sema used to wait for a cycle
Inpnode *_inp_list; // linked list of active inputs
Outnode *_out_list; // linked list of active outputs
fftwf_plan _plan_r2c; // FFTW plan, forward FFT
fftwf_plan _plan_c2r; // FFTW plan, inverse FFT
float *_time_data; // workspace
float *_prep_data; // workspace
fftwf_complex *_freq_data; // workspace
float **_inpbuff; // array of shared input buffers
float **_outbuff; // array of shared output buffers
};
// ----------------------------------------------------------------------------
class Convproc
{
public:
Convproc (void);
~Convproc (void);
enum
{
ST_IDLE,
ST_STOP,
ST_WAIT,
ST_PROC
};
enum
{
FL_LATE = 0x0000FFFF,
FL_LOAD = 0x01000000
};
enum
{
OPT_FFTW_MEASURE = Convlevel::OPT_FFTW_MEASURE,
OPT_VECTOR_MODE = Convlevel::OPT_VECTOR_MODE,
OPT_LATE_CONTIN = Convlevel::OPT_LATE_CONTIN
};
enum
{
MAXINP = 64,
MAXOUT = 64,
MAXLEV = 8,
MINPART = 64,
MAXPART = 8192,
MAXDIVIS = 16,
MINQUANT = 16,
MAXQUANT = 8192
};
uint32_t state (void) const
{
return _state;
}
float *inpdata (uint32_t inp) const
{
return _inpbuff [inp] + _inpoffs;
}
float *outdata (uint32_t out) const
{
return _outbuff [out] + _outoffs;
}
int configure (uint32_t ninp,
uint32_t nout,
uint32_t maxsize,
uint32_t quantum,
uint32_t minpart,
uint32_t maxpart,
float density);
int impdata_create (uint32_t inp,
uint32_t out,
int32_t step,
float *data,
int32_t ind0,
int32_t ind1);
int impdata_clear (uint32_t inp,
uint32_t out);
int impdata_update (uint32_t inp,
uint32_t out,
int32_t step,
float *data,
int32_t ind0,
int32_t ind1);
int impdata_link (uint32_t inp1,
uint32_t out1,
uint32_t inp2,
uint32_t out2);
// Deprecated, use impdata_link() instead.
int impdata_copy (uint32_t inp1,
uint32_t out1,
uint32_t inp2,
uint32_t out2)
{
return impdata_link (inp1, out1, inp2, out2);
}
void set_options (uint32_t options);
void set_skipcnt (uint32_t skipcnt);
int reset (void);
int start_process (int abspri, int policy);
int process (bool sync = false);
int stop_process (void);
bool check_stop (void);
int cleanup (void);
void print (FILE *F = stdout);
private:
uint32_t _state; // current state
float *_inpbuff [MAXINP]; // input buffers
float *_outbuff [MAXOUT]; // output buffers
uint32_t _inpoffs; // current offset in input buffers
uint32_t _outoffs; // current offset in output buffers
uint32_t _options; // option bits
uint32_t _skipcnt; // number of frames to skip
uint32_t _ninp; // number of inputs
uint32_t _nout; // number of outputs
uint32_t _quantum; // processing block size
uint32_t _minpart; // smallest partition size
uint32_t _maxpart; // largest allowed partition size
uint32_t _nlevels; // number of partition sizes
uint32_t _inpsize; // size of input buffers
uint32_t _latecnt; // count of cycles ending too late
Convlevel *_convlev [MAXLEV]; // array of processors
void *_dummy [64];
static float _mac_cost;
static float _fft_cost;
};
// ----------------------------------------------------------------------------
#endif
|