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Don't update the device update parameters when PulseAudio does an async buffer update
[openal-soft/android.git] / Alc / backends / pulseaudio.c
blobee7a633fe631f52174440948f1673e22869c2956
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
4 * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 * Or go to http://www.gnu.org/copyleft/lgpl.html
20 */
21
22 #include "config.h"
23
24 #include "alMain.h"
25
26 #include <pulse/pulseaudio.h>
27
28 #if PA_API_VERSION == 11
29 #define PA_STREAM_ADJUST_LATENCY 0x2000U
30 #define PA_STREAM_EARLY_REQUESTS 0x4000U
31 static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
32 {
33 return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
34 }
35 static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
36 {
37 return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
38 x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
39 }
40 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
41 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
42 #elif PA_API_VERSION != 12
43 #error Invalid PulseAudio API version
44 #endif
45
46 #ifndef PA_CHECK_VERSION
47 #define PA_CHECK_VERSION(major,minor,micro) \
48 ((PA_MAJOR > (major)) || \
49 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
50 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
51 #endif
52
53 static void *pa_handle;
54 #ifdef HAVE_DYNLOAD
55 #define MAKE_FUNC(x) static typeof(x) * p##x
56 MAKE_FUNC(pa_context_unref);
57 MAKE_FUNC(pa_sample_spec_valid);
58 MAKE_FUNC(pa_stream_drop);
59 MAKE_FUNC(pa_strerror);
60 MAKE_FUNC(pa_context_get_state);
61 MAKE_FUNC(pa_stream_get_state);
62 MAKE_FUNC(pa_threaded_mainloop_signal);
63 MAKE_FUNC(pa_stream_peek);
64 MAKE_FUNC(pa_threaded_mainloop_wait);
65 MAKE_FUNC(pa_threaded_mainloop_unlock);
66 MAKE_FUNC(pa_threaded_mainloop_in_thread);
67 MAKE_FUNC(pa_context_new);
68 MAKE_FUNC(pa_threaded_mainloop_stop);
69 MAKE_FUNC(pa_context_disconnect);
70 MAKE_FUNC(pa_threaded_mainloop_start);
71 MAKE_FUNC(pa_threaded_mainloop_get_api);
72 MAKE_FUNC(pa_context_set_state_callback);
73 MAKE_FUNC(pa_stream_write);
74 MAKE_FUNC(pa_xfree);
75 MAKE_FUNC(pa_stream_connect_record);
76 MAKE_FUNC(pa_stream_connect_playback);
77 MAKE_FUNC(pa_stream_readable_size);
78 MAKE_FUNC(pa_stream_writable_size);
79 MAKE_FUNC(pa_stream_cork);
80 MAKE_FUNC(pa_stream_is_suspended);
81 MAKE_FUNC(pa_stream_get_device_name);
82 MAKE_FUNC(pa_path_get_filename);
83 MAKE_FUNC(pa_get_binary_name);
84 MAKE_FUNC(pa_threaded_mainloop_free);
85 MAKE_FUNC(pa_context_errno);
86 MAKE_FUNC(pa_xmalloc);
87 MAKE_FUNC(pa_stream_unref);
88 MAKE_FUNC(pa_threaded_mainloop_accept);
89 MAKE_FUNC(pa_stream_set_write_callback);
90 MAKE_FUNC(pa_threaded_mainloop_new);
91 MAKE_FUNC(pa_context_connect);
92 MAKE_FUNC(pa_stream_set_buffer_attr);
93 MAKE_FUNC(pa_stream_get_buffer_attr);
94 MAKE_FUNC(pa_stream_get_sample_spec);
95 MAKE_FUNC(pa_stream_get_time);
96 MAKE_FUNC(pa_stream_set_read_callback);
97 MAKE_FUNC(pa_stream_set_state_callback);
98 MAKE_FUNC(pa_stream_set_moved_callback);
99 MAKE_FUNC(pa_stream_set_underflow_callback);
100 MAKE_FUNC(pa_stream_new);
101 MAKE_FUNC(pa_stream_disconnect);
102 MAKE_FUNC(pa_threaded_mainloop_lock);
103 MAKE_FUNC(pa_channel_map_init_auto);
104 MAKE_FUNC(pa_channel_map_parse);
105 MAKE_FUNC(pa_channel_map_snprint);
106 MAKE_FUNC(pa_channel_map_equal);
107 MAKE_FUNC(pa_context_get_server_info);
108 MAKE_FUNC(pa_context_get_sink_info_by_name);
109 MAKE_FUNC(pa_context_get_sink_info_list);
110 MAKE_FUNC(pa_context_get_source_info_list);
111 MAKE_FUNC(pa_operation_get_state);
112 MAKE_FUNC(pa_operation_unref);
113 #if PA_CHECK_VERSION(0,9,15)
114 MAKE_FUNC(pa_channel_map_superset);
115 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
116 #endif
117 #if PA_CHECK_VERSION(0,9,16)
118 MAKE_FUNC(pa_stream_begin_write);
119 #endif
120 #undef MAKE_FUNC
121
122 #define pa_context_unref ppa_context_unref
123 #define pa_sample_spec_valid ppa_sample_spec_valid
124 #define pa_stream_drop ppa_stream_drop
125 #define pa_strerror ppa_strerror
126 #define pa_context_get_state ppa_context_get_state
127 #define pa_stream_get_state ppa_stream_get_state
128 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
129 #define pa_stream_peek ppa_stream_peek
130 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
131 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
132 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
133 #define pa_context_new ppa_context_new
134 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
135 #define pa_context_disconnect ppa_context_disconnect
136 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
137 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
138 #define pa_context_set_state_callback ppa_context_set_state_callback
139 #define pa_stream_write ppa_stream_write
140 #define pa_xfree ppa_xfree
141 #define pa_stream_connect_record ppa_stream_connect_record
142 #define pa_stream_connect_playback ppa_stream_connect_playback
143 #define pa_stream_readable_size ppa_stream_readable_size
144 #define pa_stream_writable_size ppa_stream_writable_size
145 #define pa_stream_cork ppa_stream_cork
146 #define pa_stream_is_suspended ppa_stream_is_suspended
147 #define pa_stream_get_device_name ppa_stream_get_device_name
148 #define pa_path_get_filename ppa_path_get_filename
149 #define pa_get_binary_name ppa_get_binary_name
150 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
151 #define pa_context_errno ppa_context_errno
152 #define pa_xmalloc ppa_xmalloc
153 #define pa_stream_unref ppa_stream_unref
154 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
155 #define pa_stream_set_write_callback ppa_stream_set_write_callback
156 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
157 #define pa_context_connect ppa_context_connect
158 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
159 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
160 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
161 #define pa_stream_get_time ppa_stream_get_time
162 #define pa_stream_set_read_callback ppa_stream_set_read_callback
163 #define pa_stream_set_state_callback ppa_stream_set_state_callback
164 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
165 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
166 #define pa_stream_new ppa_stream_new
167 #define pa_stream_disconnect ppa_stream_disconnect
168 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
169 #define pa_channel_map_init_auto ppa_channel_map_init_auto
170 #define pa_channel_map_parse ppa_channel_map_parse
171 #define pa_channel_map_snprint ppa_channel_map_snprint
172 #define pa_channel_map_equal ppa_channel_map_equal
173 #define pa_context_get_server_info ppa_context_get_server_info
174 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
175 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
176 #define pa_context_get_source_info_list ppa_context_get_source_info_list
177 #define pa_operation_get_state ppa_operation_get_state
178 #define pa_operation_unref ppa_operation_unref
179 #if PA_CHECK_VERSION(0,9,15)
180 #define pa_channel_map_superset ppa_channel_map_superset
181 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
182 #endif
183 #if PA_CHECK_VERSION(0,9,16)
184 #define pa_stream_begin_write ppa_stream_begin_write
185 #endif
186
187 #endif
188
189 #ifndef PATH_MAX
190 #define PATH_MAX 4096
191 #endif
192
193 typedef struct {
194 char *device_name;
195
196 ALCuint samples;
197 ALCuint frame_size;
198
199 RingBuffer *ring;
200
201 pa_buffer_attr attr;
202 pa_sample_spec spec;
203
204 pa_threaded_mainloop *loop;
205
206 ALvoid *thread;
207 volatile ALboolean killNow;
208
209 pa_stream *stream;
210 pa_context *context;
211 } pulse_data;
212
213 typedef struct {
214 char *name;
215 char *device_name;
216 } DevMap;
217
218
219 static const ALCchar pulse_device[] = "PulseAudio Default";
220 static DevMap *allDevNameMap;
221 static ALuint numDevNames;
222 static DevMap *allCaptureDevNameMap;
223 static ALuint numCaptureDevNames;
224 static pa_context_flags_t pulse_ctx_flags;
225
226
227 static void context_state_callback(pa_context *context, void *pdata)
228 {
229 pa_threaded_mainloop *loop = pdata;
230 pa_context_state_t state;
231
232 state = pa_context_get_state(context);
233 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
234 pa_threaded_mainloop_signal(loop, 0);
235 }
236
237 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
238 {
239 const char *name = "OpenAL Soft";
240 char path_name[PATH_MAX];
241 pa_context_state_t state;
242 pa_context *context;
243 int err;
244
245 if(pa_get_binary_name(path_name, sizeof(path_name)))
246 name = pa_path_get_filename(path_name);
247
248 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
249 if(!context)
250 {
251 ERR("pa_context_new() failed\n");
252 return NULL;
253 }
254
255 pa_context_set_state_callback(context, context_state_callback, loop);
256
257 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
258 {
259 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
260 {
261 if(!PA_CONTEXT_IS_GOOD(state))
262 {
263 err = pa_context_errno(context);
264 if(err > 0) err = -err;
265 break;
266 }
267
268 pa_threaded_mainloop_wait(loop);
269 }
270 }
271 pa_context_set_state_callback(context, NULL, NULL);
272
273 if(err < 0)
274 {
275 if(!silent)
276 ERR("Context did not connect: %s\n", pa_strerror(err));
277 pa_context_unref(context);
278 return NULL;
279 }
280
281 return context;
282 }
283
284
285 static ALCboolean pulse_load(void) //{{{
286 {
287 ALCboolean ret = ALC_FALSE;
288 if(!pa_handle)
289 {
290 pa_threaded_mainloop *loop;
291
292 #ifdef HAVE_DYNLOAD
293
294 #ifdef _WIN32
295 #define PALIB "libpulse-0.dll"
296 #elif defined(__APPLE__) && defined(__MACH__)
297 #define PALIB "libpulse.0.dylib"
298 #else
299 #define PALIB "libpulse.so.0"
300 #endif
301 pa_handle = LoadLib(PALIB);
302 if(!pa_handle)
303 return ALC_FALSE;
304
305 #define LOAD_FUNC(x) do { \
306 p##x = GetSymbol(pa_handle, #x); \
307 if(!(p##x)) { \
308 CloseLib(pa_handle); \
309 pa_handle = NULL; \
310 return ALC_FALSE; \
311 } \
312 } while(0)
313 LOAD_FUNC(pa_context_unref);
314 LOAD_FUNC(pa_sample_spec_valid);
315 LOAD_FUNC(pa_stream_drop);
316 LOAD_FUNC(pa_strerror);
317 LOAD_FUNC(pa_context_get_state);
318 LOAD_FUNC(pa_stream_get_state);
319 LOAD_FUNC(pa_threaded_mainloop_signal);
320 LOAD_FUNC(pa_stream_peek);
321 LOAD_FUNC(pa_threaded_mainloop_wait);
322 LOAD_FUNC(pa_threaded_mainloop_unlock);
323 LOAD_FUNC(pa_threaded_mainloop_in_thread);
324 LOAD_FUNC(pa_context_new);
325 LOAD_FUNC(pa_threaded_mainloop_stop);
326 LOAD_FUNC(pa_context_disconnect);
327 LOAD_FUNC(pa_threaded_mainloop_start);
328 LOAD_FUNC(pa_threaded_mainloop_get_api);
329 LOAD_FUNC(pa_context_set_state_callback);
330 LOAD_FUNC(pa_stream_write);
331 LOAD_FUNC(pa_xfree);
332 LOAD_FUNC(pa_stream_connect_record);
333 LOAD_FUNC(pa_stream_connect_playback);
334 LOAD_FUNC(pa_stream_readable_size);
335 LOAD_FUNC(pa_stream_writable_size);
336 LOAD_FUNC(pa_stream_cork);
337 LOAD_FUNC(pa_stream_is_suspended);
338 LOAD_FUNC(pa_stream_get_device_name);
339 LOAD_FUNC(pa_path_get_filename);
340 LOAD_FUNC(pa_get_binary_name);
341 LOAD_FUNC(pa_threaded_mainloop_free);
342 LOAD_FUNC(pa_context_errno);
343 LOAD_FUNC(pa_xmalloc);
344 LOAD_FUNC(pa_stream_unref);
345 LOAD_FUNC(pa_threaded_mainloop_accept);
346 LOAD_FUNC(pa_stream_set_write_callback);
347 LOAD_FUNC(pa_threaded_mainloop_new);
348 LOAD_FUNC(pa_context_connect);
349 LOAD_FUNC(pa_stream_set_buffer_attr);
350 LOAD_FUNC(pa_stream_get_buffer_attr);
351 LOAD_FUNC(pa_stream_get_sample_spec);
352 LOAD_FUNC(pa_stream_get_time);
353 LOAD_FUNC(pa_stream_set_read_callback);
354 LOAD_FUNC(pa_stream_set_state_callback);
355 LOAD_FUNC(pa_stream_set_moved_callback);
356 LOAD_FUNC(pa_stream_set_underflow_callback);
357 LOAD_FUNC(pa_stream_new);
358 LOAD_FUNC(pa_stream_disconnect);
359 LOAD_FUNC(pa_threaded_mainloop_lock);
360 LOAD_FUNC(pa_channel_map_init_auto);
361 LOAD_FUNC(pa_channel_map_parse);
362 LOAD_FUNC(pa_channel_map_snprint);
363 LOAD_FUNC(pa_channel_map_equal);
364 LOAD_FUNC(pa_context_get_server_info);
365 LOAD_FUNC(pa_context_get_sink_info_by_name);
366 LOAD_FUNC(pa_context_get_sink_info_list);
367 LOAD_FUNC(pa_context_get_source_info_list);
368 LOAD_FUNC(pa_operation_get_state);
369 LOAD_FUNC(pa_operation_unref);
370 #undef LOAD_FUNC
371 #define LOAD_OPTIONAL_FUNC(x) do { \
372 p##x = GetSymbol(pa_handle, #x); \
373 } while(0)
374 #if PA_CHECK_VERSION(0,9,15)
375 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
376 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
377 #endif
378 #if PA_CHECK_VERSION(0,9,16)
379 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
380 #endif
381 #undef LOAD_OPTIONAL_FUNC
382
383 #else /* HAVE_DYNLOAD */
384 pa_handle = (void*)0xDEADBEEF;
385 #endif
386
387 if((loop=pa_threaded_mainloop_new()) &&
388 pa_threaded_mainloop_start(loop) >= 0)
389 {
390 pa_context *context;
391
392 pa_threaded_mainloop_lock(loop);
393 context = connect_context(loop, AL_TRUE);
394 if(context)
395 {
396 ret = ALC_TRUE;
397
398 pa_context_disconnect(context);
399 pa_context_unref(context);
400 }
401 pa_threaded_mainloop_unlock(loop);
402 pa_threaded_mainloop_stop(loop);
403 }
404 if(loop)
405 pa_threaded_mainloop_free(loop);
406
407 if(!ret)
408 {
409 #ifdef HAVE_DYNLOAD
410 CloseLib(pa_handle);
411 #endif
412 pa_handle = NULL;
413 }
414 }
415 return ret;
416 } //}}}
417
418 // PulseAudio Event Callbacks //{{{
419 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
420 {
421 pa_threaded_mainloop *loop = pdata;
422 pa_stream_state_t state;
423
424 state = pa_stream_get_state(stream);
425 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
426 pa_threaded_mainloop_signal(loop, 0);
427 }//}}}
428
429 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
430 {
431 ALCdevice *Device = pdata;
432 pulse_data *data = Device->ExtraData;
433 (void)stream;
434
435 pa_threaded_mainloop_signal(data->loop, 0);
436 }//}}}
437
438 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
439 {
440 const pa_buffer_attr *attr;
441 (void)pdata;
442
443 attr = pa_stream_get_buffer_attr(stream);
444 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", attr->minreq, attr->tlength);
445 }//}}}
446
447 static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
448 {
449 ALCdevice *Device = pdata;
450 pulse_data *data = Device->ExtraData;
451
452 free(data->device_name);
453 data->device_name = strdup(pa_stream_get_device_name(stream));
454 }//}}}
455
456 static void context_state_callback2(pa_context *context, void *pdata) //{{{
457 {
458 ALCdevice *Device = pdata;
459 pulse_data *data = Device->ExtraData;
460
461 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
462 {
463 ERR("Received context failure!\n");
464 aluHandleDisconnect(Device);
465 }
466 pa_threaded_mainloop_signal(data->loop, 0);
467 }//}}}
468
469 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
470 {
471 ALCdevice *Device = pdata;
472 pulse_data *data = Device->ExtraData;
473
474 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
475 {
476 ERR("Received stream failure!\n");
477 aluHandleDisconnect(Device);
478 }
479 pa_threaded_mainloop_signal(data->loop, 0);
480 }//}}}
481
482 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
483 {
484 ALCdevice *Device = pdata;
485 pulse_data *data = Device->ExtraData;
486 (void)stream;
487 (void)success;
488
489 pa_threaded_mainloop_signal(data->loop, 0);
490 }//}}}
491
492 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
493 {
494 ALCdevice *device = pdata;
495 pulse_data *data = device->ExtraData;
496 char chanmap_str[256] = "";
497 const struct {
498 const char *str;
499 enum DevFmtChannels chans;
500 } chanmaps[] = {
501 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
502 DevFmtX71 },
503 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
504 DevFmtX61 },
505 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
506 DevFmtX51 },
507 { "front-left,front-right,front-center,lfe,side-left,side-right",
508 DevFmtX51Side },
509 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
510 { "front-left,front-right", DevFmtStereo },
511 { "mono", DevFmtMono },
512 { NULL, 0 }
513 };
514 int i;
515 (void)context;
516
517 if(eol)
518 {
519 pa_threaded_mainloop_signal(data->loop, 0);
520 return;
521 }
522
523 for(i = 0;chanmaps[i].str;i++)
524 {
525 pa_channel_map map;
526 if(!pa_channel_map_parse(&map, chanmaps[i].str))
527 continue;
528
529 if(pa_channel_map_equal(&info->channel_map, &map)
530 #if PA_CHECK_VERSION(0,9,15)
531 || (pa_channel_map_superset &&
532 pa_channel_map_superset(&info->channel_map, &map))
533 #endif
534 )
535 {
536 device->FmtChans = chanmaps[i].chans;
537 return;
538 }
539 }
540
541 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
542 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
543 }//}}}
544
545 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
546 {
547 pa_threaded_mainloop *loop = pdata;
548 char str[1024];
549 void *temp;
550 int count;
551 ALuint i;
552
553 (void)context;
554
555 if(eol)
556 {
557 pa_threaded_mainloop_signal(loop, 0);
558 return;
559 }
560
561 count = 0;
562 do {
563 if(count == 0)
564 snprintf(str, sizeof(str), "%s", info->description);
565 else
566 snprintf(str, sizeof(str), "%s #%d", info->description, count+1);
567 count++;
568
569 for(i = 0;i < numDevNames;i++)
570 {
571 if(strcmp(str, allDevNameMap[i].name) == 0)
572 break;
573 }
574 } while(i != numDevNames);
575
576 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
577 if(temp)
578 {
579 allDevNameMap = temp;
580 allDevNameMap[numDevNames].name = strdup(str);
581 allDevNameMap[numDevNames].device_name = strdup(info->name);
582 numDevNames++;
583 }
584 }//}}}
585
586 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
587 {
588 pa_threaded_mainloop *loop = pdata;
589 char str[1024];
590 void *temp;
591 int count;
592 ALuint i;
593
594 (void)context;
595
596 if(eol)
597 {
598 pa_threaded_mainloop_signal(loop, 0);
599 return;
600 }
601
602 count = 0;
603 do {
604 if(count == 0)
605 snprintf(str, sizeof(str), "%s", info->description);
606 else
607 snprintf(str, sizeof(str), "%s #%d", info->description, count+1);
608 count++;
609
610 for(i = 0;i < numCaptureDevNames;i++)
611 {
612 if(strcmp(str, allCaptureDevNameMap[i].name) == 0)
613 break;
614 }
615 } while(i != numCaptureDevNames);
616
617 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
618 if(temp)
619 {
620 allCaptureDevNameMap = temp;
621 allCaptureDevNameMap[numCaptureDevNames].name = strdup(str);
622 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
623 numCaptureDevNames++;
624 }
625 }//}}}
626 //}}}
627
628 // PulseAudio I/O Callbacks //{{{
629 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
630 {
631 ALCdevice *Device = pdata;
632 pulse_data *data = Device->ExtraData;
633 (void)stream;
634 (void)len;
635
636 pa_threaded_mainloop_signal(data->loop, 0);
637 } //}}}
638 //}}}
639
640 static ALuint PulseProc(ALvoid *param)
641 {
642 ALCdevice *Device = param;
643 pulse_data *data = Device->ExtraData;
644 ssize_t len;
645
646 SetRTPriority();
647
648 pa_threaded_mainloop_lock(data->loop);
649 do {
650 len = (Device->Connected ? pa_stream_writable_size(data->stream) : 0);
651 len -= len%(Device->UpdateSize*data->frame_size);
652 if(len == 0)
653 {
654 pa_threaded_mainloop_wait(data->loop);
655 continue;
656 }
657
658 while(len > 0)
659 {
660 size_t newlen = len;
661 void *buf;
662 pa_free_cb_t free_func = NULL;
663
664 #if PA_CHECK_VERSION(0,9,16)
665 if(!pa_stream_begin_write ||
666 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
667 #endif
668 {
669 buf = pa_xmalloc(newlen);
670 free_func = pa_xfree;
671 }
672 pa_threaded_mainloop_unlock(data->loop);
673
674 aluMixData(Device, buf, newlen/data->frame_size);
675
676 pa_threaded_mainloop_lock(data->loop);
677 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
678 len -= newlen;
679 }
680 } while(Device->Connected && !data->killNow);
681 pa_threaded_mainloop_unlock(data->loop);
682
683 return 0;
684 }
685
686 static pa_stream *connect_playback_stream(ALCdevice *device,
687 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
688 pa_channel_map *chanmap)
689 {
690 pulse_data *data = device->ExtraData;
691 pa_stream_state_t state;
692 pa_stream *stream;
693
694 stream = pa_stream_new(data->context, "Playback Stream", spec, chanmap);
695 if(!stream)
696 {
697 ERR("pa_stream_new() failed: %s\n",
698 pa_strerror(pa_context_errno(data->context)));
699 return NULL;
700 }
701
702 pa_stream_set_state_callback(stream, stream_state_callback, data->loop);
703
704 if(pa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0)
705 {
706 ERR("Stream did not connect: %s\n",
707 pa_strerror(pa_context_errno(data->context)));
708 pa_stream_unref(stream);
709 return NULL;
710 }
711
712 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
713 {
714 if(!PA_STREAM_IS_GOOD(state))
715 {
716 ERR("Stream did not get ready: %s\n",
717 pa_strerror(pa_context_errno(data->context)));
718 pa_stream_unref(stream);
719 return NULL;
720 }
721
722 pa_threaded_mainloop_wait(data->loop);
723 }
724 pa_stream_set_state_callback(stream, NULL, NULL);
725
726 return stream;
727 }
728
729 static void probe_devices(ALboolean capture)
730 {
731 pa_threaded_mainloop *loop;
732
733 if(capture == AL_FALSE)
734 allDevNameMap = malloc(sizeof(DevMap) * 1);
735 else
736 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
737
738 if((loop=pa_threaded_mainloop_new()) &&
739 pa_threaded_mainloop_start(loop) >= 0)
740 {
741 pa_context *context;
742
743 pa_threaded_mainloop_lock(loop);
744 context = connect_context(loop, AL_FALSE);
745 if(context)
746 {
747 pa_operation *o;
748
749 if(capture == AL_FALSE)
750 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
751 else
752 o = pa_context_get_source_info_list(context, source_device_callback, loop);
753 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
754 pa_threaded_mainloop_wait(loop);
755 pa_operation_unref(o);
756
757 pa_context_disconnect(context);
758 pa_context_unref(context);
759 }
760 pa_threaded_mainloop_unlock(loop);
761 pa_threaded_mainloop_stop(loop);
762 }
763 if(loop)
764 pa_threaded_mainloop_free(loop);
765 }
766
767
768 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
769 {
770 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
771 memset(data, 0, sizeof(*data));
772
773 if(!(data->loop = pa_threaded_mainloop_new()))
774 {
775 ERR("pa_threaded_mainloop_new() failed!\n");
776 goto out;
777 }
778 if(pa_threaded_mainloop_start(data->loop) < 0)
779 {
780 ERR("pa_threaded_mainloop_start() failed\n");
781 goto out;
782 }
783
784 pa_threaded_mainloop_lock(data->loop);
785 device->ExtraData = data;
786
787 data->context = connect_context(data->loop, AL_FALSE);
788 if(!data->context)
789 {
790 pa_threaded_mainloop_unlock(data->loop);
791 goto out;
792 }
793 pa_context_set_state_callback(data->context, context_state_callback2, device);
794
795 device->szDeviceName = strdup(device_name);
796
797 pa_threaded_mainloop_unlock(data->loop);
798 return ALC_TRUE;
799
800 out:
801 if(data->loop)
802 {
803 pa_threaded_mainloop_stop(data->loop);
804 pa_threaded_mainloop_free(data->loop);
805 }
806
807 device->ExtraData = NULL;
808 pa_xfree(data);
809 return ALC_FALSE;
810 } //}}}
811
812 static void pulse_close(ALCdevice *device) //{{{
813 {
814 pulse_data *data = device->ExtraData;
815
816 pa_threaded_mainloop_lock(data->loop);
817
818 if(data->stream)
819 {
820 pa_stream_disconnect(data->stream);
821 pa_stream_unref(data->stream);
822 }
823
824 pa_context_disconnect(data->context);
825 pa_context_unref(data->context);
826
827 pa_threaded_mainloop_unlock(data->loop);
828
829 pa_threaded_mainloop_stop(data->loop);
830 pa_threaded_mainloop_free(data->loop);
831
832 DestroyRingBuffer(data->ring);
833 free(data->device_name);
834
835 device->ExtraData = NULL;
836 pa_xfree(data);
837 } //}}}
838 //}}}
839
840 // OpenAL {{{
841 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
842 {
843 char *pulse_name = NULL;
844 pa_sample_spec spec;
845 pulse_data *data;
846
847 if(!allDevNameMap)
848 probe_devices(AL_FALSE);
849
850 if(!device_name)
851 device_name = pulse_device;
852 else if(strcmp(device_name, pulse_device) != 0)
853 {
854 ALuint i;
855
856 for(i = 0;i < numDevNames;i++)
857 {
858 if(strcmp(device_name, allDevNameMap[i].name) == 0)
859 {
860 pulse_name = allDevNameMap[i].device_name;
861 break;
862 }
863 }
864 if(i == numDevNames)
865 return ALC_INVALID_VALUE;
866 }
867
868 if(pulse_open(device, device_name) == ALC_FALSE)
869 return ALC_INVALID_VALUE;
870
871 data = device->ExtraData;
872
873 pa_threaded_mainloop_lock(data->loop);
874
875 spec.format = PA_SAMPLE_S16NE;
876 spec.rate = 44100;
877 spec.channels = 2;
878
879 data->device_name = pulse_name;
880 pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL);
881 if(!stream)
882 {
883 pa_threaded_mainloop_unlock(data->loop);
884 goto fail;
885 }
886
887 if(pa_stream_is_suspended(stream))
888 {
889 ERR("Device is suspended\n");
890 pa_stream_disconnect(stream);
891 pa_stream_unref(stream);
892 pa_threaded_mainloop_unlock(data->loop);
893 goto fail;
894 }
895 data->device_name = strdup(pa_stream_get_device_name(stream));
896
897 pa_stream_disconnect(stream);
898 pa_stream_unref(stream);
899
900 pa_threaded_mainloop_unlock(data->loop);
901
902 return ALC_NO_ERROR;
903
904 fail:
905 pulse_close(device);
906 return ALC_INVALID_VALUE;
907 } //}}}
908
909 static void pulse_close_playback(ALCdevice *device) //{{{
910 {
911 pulse_close(device);
912 } //}}}
913
914 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
915 {
916 pulse_data *data = device->ExtraData;
917 pa_stream_flags_t flags = 0;
918 pa_channel_map chanmap;
919
920 pa_threaded_mainloop_lock(data->loop);
921
922 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
923 {
924 pa_operation *o;
925 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
926 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
927 pa_threaded_mainloop_wait(data->loop);
928 pa_operation_unref(o);
929 }
930 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
931 flags |= PA_STREAM_FIX_RATE;
932
933 data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
934 data->attr.prebuf = -1;
935 data->attr.fragsize = -1;
936 data->attr.minreq = device->UpdateSize * data->frame_size;
937 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
938 data->attr.maxlength = -1;
939 flags |= PA_STREAM_EARLY_REQUESTS;
940 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
941
942 switch(device->FmtType)
943 {
944 case DevFmtByte:
945 device->FmtType = DevFmtUByte;
946 /* fall-through */
947 case DevFmtUByte:
948 data->spec.format = PA_SAMPLE_U8;
949 break;
950 case DevFmtUShort:
951 device->FmtType = DevFmtShort;
952 /* fall-through */
953 case DevFmtShort:
954 data->spec.format = PA_SAMPLE_S16NE;
955 break;
956 case DevFmtFloat:
957 data->spec.format = PA_SAMPLE_FLOAT32NE;
958 break;
959 }
960 data->spec.rate = device->Frequency;
961 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
962
963 if(pa_sample_spec_valid(&data->spec) == 0)
964 {
965 ERR("Invalid sample format\n");
966 pa_threaded_mainloop_unlock(data->loop);
967 return ALC_FALSE;
968 }
969
970 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
971 {
972 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
973 pa_threaded_mainloop_unlock(data->loop);
974 return ALC_FALSE;
975 }
976 SetDefaultWFXChannelOrder(device);
977
978 data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap);
979 if(!data->stream)
980 {
981 pa_threaded_mainloop_unlock(data->loop);
982 return ALC_FALSE;
983 }
984
985 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
986
987 data->spec = *(pa_stream_get_sample_spec(data->stream));
988 if(device->Frequency != data->spec.rate)
989 {
990 pa_operation *o;
991
992 if((device->Flags&DEVICE_FREQUENCY_REQUEST))
993 ERR("Failed to set frequency %dhz, got %dhz instead\n", device->Frequency, data->spec.rate);
994 device->Flags &= ~DEVICE_FREQUENCY_REQUEST;
995
996 /* Server updated our playback rate, so modify the buffer attribs
997 * accordingly. */
998 data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) *
999 data->spec.rate / device->Frequency * data->frame_size;
1000 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1001
1002 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1003 stream_success_callback, device);
1004 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1005 pa_threaded_mainloop_wait(data->loop);
1006 pa_operation_unref(o);
1007
1008 device->Frequency = data->spec.rate;
1009 }
1010
1011 #if PA_CHECK_VERSION(0,9,15)
1012 if(pa_stream_set_buffer_attr_callback)
1013 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1014 #endif
1015 pa_stream_set_moved_callback(data->stream, stream_device_callback, device);
1016 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1017 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1018
1019 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1020 device->UpdateSize = data->attr.minreq / data->frame_size;
1021 device->NumUpdates = (data->attr.tlength/data->frame_size) / device->UpdateSize;
1022 if(device->NumUpdates <= 1)
1023 {
1024 pa_operation *o;
1025
1026 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1027
1028 /* Server gave a comparatively large minreq, so modify the tlength. */
1029 device->NumUpdates = 2;
1030 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1031
1032 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1033 stream_success_callback, device);
1034 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1035 pa_threaded_mainloop_wait(data->loop);
1036 pa_operation_unref(o);
1037 }
1038
1039 data->thread = StartThread(PulseProc, device);
1040 if(!data->thread)
1041 {
1042 #if PA_CHECK_VERSION(0,9,15)
1043 if(pa_stream_set_buffer_attr_callback)
1044 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1045 #endif
1046 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1047 pa_stream_set_write_callback(data->stream, NULL, NULL);
1048 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1049 pa_stream_disconnect(data->stream);
1050 pa_stream_unref(data->stream);
1051 data->stream = NULL;
1052
1053 pa_threaded_mainloop_unlock(data->loop);
1054 return ALC_FALSE;
1055 }
1056
1057 pa_threaded_mainloop_unlock(data->loop);
1058 return ALC_TRUE;
1059 } //}}}
1060
1061 static void pulse_stop_playback(ALCdevice *device) //{{{
1062 {
1063 pulse_data *data = device->ExtraData;
1064
1065 if(!data->stream)
1066 return;
1067
1068 data->killNow = AL_TRUE;
1069 if(data->thread)
1070 {
1071 pa_threaded_mainloop_signal(data->loop, 0);
1072 StopThread(data->thread);
1073 data->thread = NULL;
1074 }
1075 data->killNow = AL_FALSE;
1076
1077 pa_threaded_mainloop_lock(data->loop);
1078
1079 #if PA_CHECK_VERSION(0,9,15)
1080 if(pa_stream_set_buffer_attr_callback)
1081 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1082 #endif
1083 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1084 pa_stream_set_write_callback(data->stream, NULL, NULL);
1085 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1086 pa_stream_disconnect(data->stream);
1087 pa_stream_unref(data->stream);
1088 data->stream = NULL;
1089
1090 pa_threaded_mainloop_unlock(data->loop);
1091 } //}}}
1092
1093
1094 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1095 {
1096 char *pulse_name = NULL;
1097 pulse_data *data;
1098 pa_stream_flags_t flags = 0;
1099 pa_stream_state_t state;
1100 pa_channel_map chanmap;
1101
1102 if(!allCaptureDevNameMap)
1103 probe_devices(AL_TRUE);
1104
1105 if(!device_name)
1106 device_name = pulse_device;
1107 else if(strcmp(device_name, pulse_device) != 0)
1108 {
1109 ALuint i;
1110
1111 for(i = 0;i < numCaptureDevNames;i++)
1112 {
1113 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1114 {
1115 pulse_name = allCaptureDevNameMap[i].device_name;
1116 break;
1117 }
1118 }
1119 if(i == numCaptureDevNames)
1120 return ALC_INVALID_VALUE;
1121 }
1122
1123 if(pulse_open(device, device_name) == ALC_FALSE)
1124 return ALC_INVALID_VALUE;
1125
1126 data = device->ExtraData;
1127 pa_threaded_mainloop_lock(data->loop);
1128
1129 data->samples = device->UpdateSize * device->NumUpdates;
1130 data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
1131 data->samples = maxu(data->samples, 100 * device->Frequency / 1000);
1132
1133 if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
1134 {
1135 pa_threaded_mainloop_unlock(data->loop);
1136 goto fail;
1137 }
1138
1139 data->attr.minreq = -1;
1140 data->attr.prebuf = -1;
1141 data->attr.maxlength = data->samples * data->frame_size;
1142 data->attr.tlength = -1;
1143 data->attr.fragsize = minu(data->samples, 50*device->Frequency/1000) *
1144 data->frame_size;
1145
1146 data->spec.rate = device->Frequency;
1147 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1148
1149 switch(device->FmtType)
1150 {
1151 case DevFmtUByte:
1152 data->spec.format = PA_SAMPLE_U8;
1153 break;
1154 case DevFmtShort:
1155 data->spec.format = PA_SAMPLE_S16NE;
1156 break;
1157 case DevFmtFloat:
1158 data->spec.format = PA_SAMPLE_FLOAT32NE;
1159 break;
1160 case DevFmtByte:
1161 case DevFmtUShort:
1162 ERR("Capture format type %#x capture not supported on PulseAudio\n", device->FmtType);
1163 pa_threaded_mainloop_unlock(data->loop);
1164 goto fail;
1165 }
1166
1167 if(pa_sample_spec_valid(&data->spec) == 0)
1168 {
1169 ERR("Invalid sample format\n");
1170 pa_threaded_mainloop_unlock(data->loop);
1171 goto fail;
1172 }
1173
1174 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1175 {
1176 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1177 pa_threaded_mainloop_unlock(data->loop);
1178 goto fail;
1179 }
1180
1181 data->stream = pa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap);
1182 if(!data->stream)
1183 {
1184 ERR("pa_stream_new() failed: %s\n",
1185 pa_strerror(pa_context_errno(data->context)));
1186
1187 pa_threaded_mainloop_unlock(data->loop);
1188 goto fail;
1189 }
1190
1191 pa_stream_set_state_callback(data->stream, stream_state_callback, data->loop);
1192
1193 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1194 if(pa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0)
1195 {
1196 ERR("Stream did not connect: %s\n",
1197 pa_strerror(pa_context_errno(data->context)));
1198
1199 pa_stream_unref(data->stream);
1200 data->stream = NULL;
1201
1202 pa_threaded_mainloop_unlock(data->loop);
1203 goto fail;
1204 }
1205
1206 while((state=pa_stream_get_state(data->stream)) != PA_STREAM_READY)
1207 {
1208 if(!PA_STREAM_IS_GOOD(state))
1209 {
1210 ERR("Stream did not get ready: %s\n",
1211 pa_strerror(pa_context_errno(data->context)));
1212
1213 pa_stream_unref(data->stream);
1214 data->stream = NULL;
1215
1216 pa_threaded_mainloop_unlock(data->loop);
1217 goto fail;
1218 }
1219
1220 pa_threaded_mainloop_wait(data->loop);
1221 }
1222 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1223
1224 pa_threaded_mainloop_unlock(data->loop);
1225 return ALC_NO_ERROR;
1226
1227 fail:
1228 pulse_close(device);
1229 return ALC_INVALID_VALUE;
1230 } //}}}
1231
1232 static void pulse_close_capture(ALCdevice *device) //{{{
1233 {
1234 pulse_close(device);
1235 } //}}}
1236
1237 static void pulse_start_capture(ALCdevice *device) //{{{
1238 {
1239 pulse_data *data = device->ExtraData;
1240 pa_operation *o;
1241
1242 pa_threaded_mainloop_lock(data->loop);
1243 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1244 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1245 pa_threaded_mainloop_wait(data->loop);
1246 pa_operation_unref(o);
1247 pa_threaded_mainloop_unlock(data->loop);
1248 } //}}}
1249
1250 static void pulse_stop_capture(ALCdevice *device) //{{{
1251 {
1252 pulse_data *data = device->ExtraData;
1253 pa_operation *o;
1254
1255 pa_threaded_mainloop_lock(data->loop);
1256 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1257 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1258 pa_threaded_mainloop_wait(data->loop);
1259 pa_operation_unref(o);
1260 pa_threaded_mainloop_unlock(data->loop);
1261 } //}}}
1262
1263 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1264 {
1265 pulse_data *data = device->ExtraData;
1266 ReadRingBuffer(data->ring, buffer, samples);
1267 return ALC_NO_ERROR;
1268 } //}}}
1269
1270 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1271 {
1272 pulse_data *data = device->ExtraData;
1273 size_t samples;
1274
1275 pa_threaded_mainloop_lock(data->loop);
1276 /* Capture is done in fragment-sized chunks, so we loop until we get all
1277 * that's available */
1278 samples = (device->Connected ? pa_stream_readable_size(data->stream) : 0);
1279 while(samples > 0)
1280 {
1281 const void *buf;
1282 size_t length;
1283
1284 if(pa_stream_peek(data->stream, &buf, &length) < 0)
1285 {
1286 ERR("pa_stream_peek() failed: %s\n",
1287 pa_strerror(pa_context_errno(data->context)));
1288 break;
1289 }
1290
1291 WriteRingBuffer(data->ring, buf, length/data->frame_size);
1292 samples -= length;
1293
1294 pa_stream_drop(data->stream);
1295 }
1296 pa_threaded_mainloop_unlock(data->loop);
1297
1298 return RingBufferSize(data->ring);
1299 } //}}}
1300
1301
1302 static const BackendFuncs pulse_funcs = { //{{{
1303 pulse_open_playback,
1304 pulse_close_playback,
1305 pulse_reset_playback,
1306 pulse_stop_playback,
1307 pulse_open_capture,
1308 pulse_close_capture,
1309 pulse_start_capture,
1310 pulse_stop_capture,
1311 pulse_capture_samples,
1312 pulse_available_samples
1313 }; //}}}
1314
1315 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1316 {
1317 if(!pulse_load())
1318 return ALC_FALSE;
1319
1320 *func_list = pulse_funcs;
1321
1322 pulse_ctx_flags = 0;
1323 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1324 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1325
1326 return ALC_TRUE;
1327 } //}}}
1328
1329 void alc_pulse_deinit(void) //{{{
1330 {
1331 ALuint i;
1332
1333 for(i = 0;i < numDevNames;++i)
1334 {
1335 free(allDevNameMap[i].name);
1336 free(allDevNameMap[i].device_name);
1337 }
1338 free(allDevNameMap);
1339 allDevNameMap = NULL;
1340 numDevNames = 0;
1341
1342 for(i = 0;i < numCaptureDevNames;++i)
1343 {
1344 free(allCaptureDevNameMap[i].name);
1345 free(allCaptureDevNameMap[i].device_name);
1346 }
1347 free(allCaptureDevNameMap);
1348 allCaptureDevNameMap = NULL;
1349 numCaptureDevNames = 0;
1350
1351 #ifdef HAVE_DYNLOAD
1352 if(pa_handle)
1353 CloseLib(pa_handle);
1354 pa_handle = NULL;
1355 #endif
1356 } //}}}
1357
1358 void alc_pulse_probe(enum DevProbe type) //{{{
1359 {
1360 pa_threaded_mainloop *loop;
1361 ALuint i;
1362
1363 switch(type)
1364 {
1365 case DEVICE_PROBE:
1366 if((loop=pa_threaded_mainloop_new()) &&
1367 pa_threaded_mainloop_start(loop) >= 0)
1368 {
1369 pa_context *context;
1370
1371 pa_threaded_mainloop_lock(loop);
1372 context = connect_context(loop, AL_FALSE);
1373 if(context)
1374 {
1375 AppendDeviceList(pulse_device);
1376
1377 pa_context_disconnect(context);
1378 pa_context_unref(context);
1379 }
1380 pa_threaded_mainloop_unlock(loop);
1381 pa_threaded_mainloop_stop(loop);
1382 }
1383 if(loop)
1384 pa_threaded_mainloop_free(loop);
1385 break;
1386
1387 case ALL_DEVICE_PROBE:
1388 for(i = 0;i < numDevNames;++i)
1389 {
1390 free(allDevNameMap[i].name);
1391 free(allDevNameMap[i].device_name);
1392 }
1393 free(allDevNameMap);
1394 allDevNameMap = NULL;
1395 numDevNames = 0;
1396
1397 probe_devices(AL_FALSE);
1398
1399 for(i = 0;i < numDevNames;i++)
1400 AppendAllDeviceList(allDevNameMap[i].name);
1401 break;
1402
1403 case CAPTURE_DEVICE_PROBE:
1404 for(i = 0;i < numCaptureDevNames;++i)
1405 {
1406 free(allCaptureDevNameMap[i].name);
1407 free(allCaptureDevNameMap[i].device_name);
1408 }
1409 free(allCaptureDevNameMap);
1410 allCaptureDevNameMap = NULL;
1411 numCaptureDevNames = 0;
1412
1413 probe_devices(AL_TRUE);
1414
1415 for(i = 0;i < numCaptureDevNames;i++)
1416 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1417 break;
1418 }
1419 } //}}}
1420 //}}}
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