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Add an option to allow PulseAudio to move streams
[openal-soft.git] / Alc / backends / pulseaudio.c
blob3016283d1d65538df61762de2673b6d81f49256a
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 == 12
29
30 #ifndef PA_CHECK_VERSION
31 #define PA_CHECK_VERSION(major,minor,micro) \
32 ((PA_MAJOR > (major)) || \
33 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
34 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
35 #endif
36
37 #ifdef HAVE_DYNLOAD
38 static void *pa_handle;
39 #define MAKE_FUNC(x) static typeof(x) * p##x
40 MAKE_FUNC(pa_context_unref);
41 MAKE_FUNC(pa_sample_spec_valid);
42 MAKE_FUNC(pa_frame_size);
43 MAKE_FUNC(pa_stream_drop);
44 MAKE_FUNC(pa_strerror);
45 MAKE_FUNC(pa_context_get_state);
46 MAKE_FUNC(pa_stream_get_state);
47 MAKE_FUNC(pa_threaded_mainloop_signal);
48 MAKE_FUNC(pa_stream_peek);
49 MAKE_FUNC(pa_threaded_mainloop_wait);
50 MAKE_FUNC(pa_threaded_mainloop_unlock);
51 MAKE_FUNC(pa_threaded_mainloop_in_thread);
52 MAKE_FUNC(pa_context_new);
53 MAKE_FUNC(pa_threaded_mainloop_stop);
54 MAKE_FUNC(pa_context_disconnect);
55 MAKE_FUNC(pa_threaded_mainloop_start);
56 MAKE_FUNC(pa_threaded_mainloop_get_api);
57 MAKE_FUNC(pa_context_set_state_callback);
58 MAKE_FUNC(pa_stream_write);
59 MAKE_FUNC(pa_xfree);
60 MAKE_FUNC(pa_stream_connect_record);
61 MAKE_FUNC(pa_stream_connect_playback);
62 MAKE_FUNC(pa_stream_readable_size);
63 MAKE_FUNC(pa_stream_writable_size);
64 MAKE_FUNC(pa_stream_is_corked);
65 MAKE_FUNC(pa_stream_cork);
66 MAKE_FUNC(pa_stream_is_suspended);
67 MAKE_FUNC(pa_stream_get_device_name);
68 MAKE_FUNC(pa_path_get_filename);
69 MAKE_FUNC(pa_get_binary_name);
70 MAKE_FUNC(pa_threaded_mainloop_free);
71 MAKE_FUNC(pa_context_errno);
72 MAKE_FUNC(pa_xmalloc);
73 MAKE_FUNC(pa_stream_unref);
74 MAKE_FUNC(pa_threaded_mainloop_accept);
75 MAKE_FUNC(pa_stream_set_write_callback);
76 MAKE_FUNC(pa_threaded_mainloop_new);
77 MAKE_FUNC(pa_context_connect);
78 MAKE_FUNC(pa_stream_set_buffer_attr);
79 MAKE_FUNC(pa_stream_get_buffer_attr);
80 MAKE_FUNC(pa_stream_get_sample_spec);
81 MAKE_FUNC(pa_stream_get_time);
82 MAKE_FUNC(pa_stream_set_read_callback);
83 MAKE_FUNC(pa_stream_set_state_callback);
84 MAKE_FUNC(pa_stream_set_moved_callback);
85 MAKE_FUNC(pa_stream_set_underflow_callback);
86 MAKE_FUNC(pa_stream_new_with_proplist);
87 MAKE_FUNC(pa_stream_disconnect);
88 MAKE_FUNC(pa_threaded_mainloop_lock);
89 MAKE_FUNC(pa_channel_map_init_auto);
90 MAKE_FUNC(pa_channel_map_parse);
91 MAKE_FUNC(pa_channel_map_snprint);
92 MAKE_FUNC(pa_channel_map_equal);
93 MAKE_FUNC(pa_context_get_server_info);
94 MAKE_FUNC(pa_context_get_sink_info_by_name);
95 MAKE_FUNC(pa_context_get_sink_info_list);
96 MAKE_FUNC(pa_context_get_source_info_by_name);
97 MAKE_FUNC(pa_context_get_source_info_list);
98 MAKE_FUNC(pa_operation_get_state);
99 MAKE_FUNC(pa_operation_unref);
100 MAKE_FUNC(pa_proplist_new);
101 MAKE_FUNC(pa_proplist_free);
102 MAKE_FUNC(pa_proplist_set);
103 #if PA_CHECK_VERSION(0,9,15)
104 MAKE_FUNC(pa_channel_map_superset);
105 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
106 #endif
107 #if PA_CHECK_VERSION(0,9,16)
108 MAKE_FUNC(pa_stream_begin_write);
109 #endif
110 #undef MAKE_FUNC
111
112 #define pa_context_unref ppa_context_unref
113 #define pa_sample_spec_valid ppa_sample_spec_valid
114 #define pa_frame_size ppa_frame_size
115 #define pa_stream_drop ppa_stream_drop
116 #define pa_strerror ppa_strerror
117 #define pa_context_get_state ppa_context_get_state
118 #define pa_stream_get_state ppa_stream_get_state
119 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
120 #define pa_stream_peek ppa_stream_peek
121 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
122 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
123 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
124 #define pa_context_new ppa_context_new
125 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
126 #define pa_context_disconnect ppa_context_disconnect
127 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
128 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
129 #define pa_context_set_state_callback ppa_context_set_state_callback
130 #define pa_stream_write ppa_stream_write
131 #define pa_xfree ppa_xfree
132 #define pa_stream_connect_record ppa_stream_connect_record
133 #define pa_stream_connect_playback ppa_stream_connect_playback
134 #define pa_stream_readable_size ppa_stream_readable_size
135 #define pa_stream_writable_size ppa_stream_writable_size
136 #define pa_stream_is_corked ppa_stream_is_corked
137 #define pa_stream_cork ppa_stream_cork
138 #define pa_stream_is_suspended ppa_stream_is_suspended
139 #define pa_stream_get_device_name ppa_stream_get_device_name
140 #define pa_path_get_filename ppa_path_get_filename
141 #define pa_get_binary_name ppa_get_binary_name
142 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
143 #define pa_context_errno ppa_context_errno
144 #define pa_xmalloc ppa_xmalloc
145 #define pa_stream_unref ppa_stream_unref
146 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
147 #define pa_stream_set_write_callback ppa_stream_set_write_callback
148 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
149 #define pa_context_connect ppa_context_connect
150 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
151 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
152 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
153 #define pa_stream_get_time ppa_stream_get_time
154 #define pa_stream_set_read_callback ppa_stream_set_read_callback
155 #define pa_stream_set_state_callback ppa_stream_set_state_callback
156 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
157 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
158 #define pa_stream_new_with_proplist ppa_stream_new_with_proplist
159 #define pa_stream_disconnect ppa_stream_disconnect
160 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
161 #define pa_channel_map_init_auto ppa_channel_map_init_auto
162 #define pa_channel_map_parse ppa_channel_map_parse
163 #define pa_channel_map_snprint ppa_channel_map_snprint
164 #define pa_channel_map_equal ppa_channel_map_equal
165 #define pa_context_get_server_info ppa_context_get_server_info
166 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
167 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
168 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
169 #define pa_context_get_source_info_list ppa_context_get_source_info_list
170 #define pa_operation_get_state ppa_operation_get_state
171 #define pa_operation_unref ppa_operation_unref
172 #define pa_proplist_new ppa_proplist_new
173 #define pa_proplist_free ppa_proplist_free
174 #define pa_proplist_set ppa_proplist_set
175 #if PA_CHECK_VERSION(0,9,15)
176 #define pa_channel_map_superset ppa_channel_map_superset
177 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
178 #endif
179 #if PA_CHECK_VERSION(0,9,16)
180 #define pa_stream_begin_write ppa_stream_begin_write
181 #endif
182
183 #endif
184
185 #ifndef PATH_MAX
186 #define PATH_MAX 4096
187 #endif
188
189 typedef struct {
190 char *device_name;
191
192 const void *cap_store;
193 size_t cap_len;
194 size_t cap_remain;
195
196 ALCuint last_readable;
197
198 pa_buffer_attr attr;
199 pa_sample_spec spec;
200
201 pa_threaded_mainloop *loop;
202
203 ALvoid *thread;
204 volatile ALboolean killNow;
205
206 pa_stream *stream;
207 pa_context *context;
208 } pulse_data;
209
210 typedef struct {
211 char *name;
212 char *device_name;
213 } DevMap;
214
215
216 static DevMap *allDevNameMap;
217 static ALuint numDevNames;
218 static DevMap *allCaptureDevNameMap;
219 static ALuint numCaptureDevNames;
220 static pa_context_flags_t pulse_ctx_flags;
221 static pa_proplist *prop_filter;
222
223
224 static ALCboolean pulse_load(void)
225 {
226 ALCboolean ret = ALC_TRUE;
227 #ifdef HAVE_DYNLOAD
228 if(!pa_handle)
229 {
230 #ifdef _WIN32
231 #define PALIB "libpulse-0.dll"
232 #elif defined(__APPLE__) && defined(__MACH__)
233 #define PALIB "libpulse.0.dylib"
234 #else
235 #define PALIB "libpulse.so.0"
236 #endif
237 pa_handle = LoadLib(PALIB);
238 if(!pa_handle)
239 return ALC_FALSE;
240
241 #define LOAD_FUNC(x) do { \
242 p##x = GetSymbol(pa_handle, #x); \
243 if(!(p##x)) { \
244 ret = ALC_FALSE; \
245 } \
246 } while(0)
247 LOAD_FUNC(pa_context_unref);
248 LOAD_FUNC(pa_sample_spec_valid);
249 LOAD_FUNC(pa_stream_drop);
250 LOAD_FUNC(pa_frame_size);
251 LOAD_FUNC(pa_strerror);
252 LOAD_FUNC(pa_context_get_state);
253 LOAD_FUNC(pa_stream_get_state);
254 LOAD_FUNC(pa_threaded_mainloop_signal);
255 LOAD_FUNC(pa_stream_peek);
256 LOAD_FUNC(pa_threaded_mainloop_wait);
257 LOAD_FUNC(pa_threaded_mainloop_unlock);
258 LOAD_FUNC(pa_threaded_mainloop_in_thread);
259 LOAD_FUNC(pa_context_new);
260 LOAD_FUNC(pa_threaded_mainloop_stop);
261 LOAD_FUNC(pa_context_disconnect);
262 LOAD_FUNC(pa_threaded_mainloop_start);
263 LOAD_FUNC(pa_threaded_mainloop_get_api);
264 LOAD_FUNC(pa_context_set_state_callback);
265 LOAD_FUNC(pa_stream_write);
266 LOAD_FUNC(pa_xfree);
267 LOAD_FUNC(pa_stream_connect_record);
268 LOAD_FUNC(pa_stream_connect_playback);
269 LOAD_FUNC(pa_stream_readable_size);
270 LOAD_FUNC(pa_stream_writable_size);
271 LOAD_FUNC(pa_stream_is_corked);
272 LOAD_FUNC(pa_stream_cork);
273 LOAD_FUNC(pa_stream_is_suspended);
274 LOAD_FUNC(pa_stream_get_device_name);
275 LOAD_FUNC(pa_path_get_filename);
276 LOAD_FUNC(pa_get_binary_name);
277 LOAD_FUNC(pa_threaded_mainloop_free);
278 LOAD_FUNC(pa_context_errno);
279 LOAD_FUNC(pa_xmalloc);
280 LOAD_FUNC(pa_stream_unref);
281 LOAD_FUNC(pa_threaded_mainloop_accept);
282 LOAD_FUNC(pa_stream_set_write_callback);
283 LOAD_FUNC(pa_threaded_mainloop_new);
284 LOAD_FUNC(pa_context_connect);
285 LOAD_FUNC(pa_stream_set_buffer_attr);
286 LOAD_FUNC(pa_stream_get_buffer_attr);
287 LOAD_FUNC(pa_stream_get_sample_spec);
288 LOAD_FUNC(pa_stream_get_time);
289 LOAD_FUNC(pa_stream_set_read_callback);
290 LOAD_FUNC(pa_stream_set_state_callback);
291 LOAD_FUNC(pa_stream_set_moved_callback);
292 LOAD_FUNC(pa_stream_set_underflow_callback);
293 LOAD_FUNC(pa_stream_new_with_proplist);
294 LOAD_FUNC(pa_stream_disconnect);
295 LOAD_FUNC(pa_threaded_mainloop_lock);
296 LOAD_FUNC(pa_channel_map_init_auto);
297 LOAD_FUNC(pa_channel_map_parse);
298 LOAD_FUNC(pa_channel_map_snprint);
299 LOAD_FUNC(pa_channel_map_equal);
300 LOAD_FUNC(pa_context_get_server_info);
301 LOAD_FUNC(pa_context_get_sink_info_by_name);
302 LOAD_FUNC(pa_context_get_sink_info_list);
303 LOAD_FUNC(pa_context_get_source_info_by_name);
304 LOAD_FUNC(pa_context_get_source_info_list);
305 LOAD_FUNC(pa_operation_get_state);
306 LOAD_FUNC(pa_operation_unref);
307 LOAD_FUNC(pa_proplist_new);
308 LOAD_FUNC(pa_proplist_free);
309 LOAD_FUNC(pa_proplist_set);
310 #undef LOAD_FUNC
311 #define LOAD_OPTIONAL_FUNC(x) do { \
312 p##x = GetSymbol(pa_handle, #x); \
313 } while(0)
314 #if PA_CHECK_VERSION(0,9,15)
315 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
316 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
317 #endif
318 #if PA_CHECK_VERSION(0,9,16)
319 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
320 #endif
321 #undef LOAD_OPTIONAL_FUNC
322
323 if(ret == ALC_FALSE)
324 {
325 CloseLib(pa_handle);
326 pa_handle = NULL;
327 }
328 }
329 #endif /* HAVE_DYNLOAD */
330 return ret;
331 }
332
333 /* PulseAudio Event Callbacks */
334 static void context_state_callback(pa_context *context, void *pdata)
335 {
336 pa_threaded_mainloop *loop = pdata;
337 pa_context_state_t state;
338
339 state = pa_context_get_state(context);
340 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
341 pa_threaded_mainloop_signal(loop, 0);
342 }
343
344 static void stream_state_callback(pa_stream *stream, void *pdata)
345 {
346 pa_threaded_mainloop *loop = pdata;
347 pa_stream_state_t state;
348
349 state = pa_stream_get_state(stream);
350 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
351 pa_threaded_mainloop_signal(loop, 0);
352 }
353
354 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata)
355 {
356 ALCdevice *device = pdata;
357 pulse_data *data = device->ExtraData;
358
359 data->attr = *pa_stream_get_buffer_attr(stream);
360 TRACE("minreq=%d, tlength=%d, prebuf=%d\n", data->attr.minreq, data->attr.tlength, data->attr.prebuf);
361 }
362
363 static void context_state_callback2(pa_context *context, void *pdata)
364 {
365 ALCdevice *Device = pdata;
366 pulse_data *data = Device->ExtraData;
367
368 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
369 {
370 ERR("Received context failure!\n");
371 aluHandleDisconnect(Device);
372 }
373 pa_threaded_mainloop_signal(data->loop, 0);
374 }
375
376 static void stream_state_callback2(pa_stream *stream, void *pdata)
377 {
378 ALCdevice *Device = pdata;
379 pulse_data *data = Device->ExtraData;
380
381 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
382 {
383 ERR("Received stream failure!\n");
384 aluHandleDisconnect(Device);
385 }
386 pa_threaded_mainloop_signal(data->loop, 0);
387 }
388
389 static void stream_success_callback(pa_stream *stream, int success, void *pdata)
390 {
391 ALCdevice *Device = pdata;
392 pulse_data *data = Device->ExtraData;
393 (void)stream;
394 (void)success;
395
396 pa_threaded_mainloop_signal(data->loop, 0);
397 }
398
399 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
400 {
401 ALCdevice *device = pdata;
402 pulse_data *data = device->ExtraData;
403 char chanmap_str[256] = "";
404 const struct {
405 const char *str;
406 enum DevFmtChannels chans;
407 } chanmaps[] = {
408 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
409 DevFmtX71 },
410 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
411 DevFmtX61 },
412 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
413 DevFmtX51 },
414 { "front-left,front-right,front-center,lfe,side-left,side-right",
415 DevFmtX51Side },
416 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
417 { "front-left,front-right", DevFmtStereo },
418 { "mono", DevFmtMono },
419 { NULL, 0 }
420 };
421 int i;
422 (void)context;
423
424 if(eol)
425 {
426 pa_threaded_mainloop_signal(data->loop, 0);
427 return;
428 }
429
430 for(i = 0;chanmaps[i].str;i++)
431 {
432 pa_channel_map map;
433 if(!pa_channel_map_parse(&map, chanmaps[i].str))
434 continue;
435
436 if(pa_channel_map_equal(&info->channel_map, &map)
437 #if PA_CHECK_VERSION(0,9,15)
438 || (pa_channel_map_superset &&
439 pa_channel_map_superset(&info->channel_map, &map))
440 #endif
441 )
442 {
443 device->FmtChans = chanmaps[i].chans;
444 return;
445 }
446 }
447
448 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
449 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
450 }
451
452 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
453 {
454 pa_threaded_mainloop *loop = pdata;
455 void *temp;
456 ALuint i;
457
458 (void)context;
459
460 if(eol)
461 {
462 pa_threaded_mainloop_signal(loop, 0);
463 return;
464 }
465
466 for(i = 0;i < numDevNames;i++)
467 {
468 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
469 return;
470 }
471
472 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
473
474 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
475 if(temp)
476 {
477 allDevNameMap = temp;
478 allDevNameMap[numDevNames].name = strdup(info->description);
479 allDevNameMap[numDevNames].device_name = strdup(info->name);
480 numDevNames++;
481 }
482 }
483
484 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
485 {
486 pa_threaded_mainloop *loop = pdata;
487 void *temp;
488 ALuint i;
489
490 (void)context;
491
492 if(eol)
493 {
494 pa_threaded_mainloop_signal(loop, 0);
495 return;
496 }
497
498 for(i = 0;i < numCaptureDevNames;i++)
499 {
500 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
501 return;
502 }
503
504 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
505
506 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
507 if(temp)
508 {
509 allCaptureDevNameMap = temp;
510 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
511 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
512 numCaptureDevNames++;
513 }
514 }
515
516 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
517 {
518 ALCdevice *device = pdata;
519 pulse_data *data = device->ExtraData;
520 (void)context;
521
522 if(eol)
523 {
524 pa_threaded_mainloop_signal(data->loop, 0);
525 return;
526 }
527
528 free(device->DeviceName);
529 device->DeviceName = strdup(info->description);
530 }
531
532 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
533 {
534 ALCdevice *device = pdata;
535 pulse_data *data = device->ExtraData;
536 (void)context;
537
538 if(eol)
539 {
540 pa_threaded_mainloop_signal(data->loop, 0);
541 return;
542 }
543
544 free(device->DeviceName);
545 device->DeviceName = strdup(info->description);
546 }
547
548
549 static void stream_moved_callback(pa_stream *stream, void *pdata)
550 {
551 ALCdevice *device = pdata;
552 pulse_data *data = device->ExtraData;
553 (void)stream;
554
555 free(data->device_name);
556 data->device_name = strdup(pa_stream_get_device_name(data->stream));
557
558 TRACE("Stream moved to %s\n", data->device_name);
559 }
560
561
562 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
563 {
564 const char *name = "OpenAL Soft";
565 char path_name[PATH_MAX];
566 pa_context_state_t state;
567 pa_context *context;
568 int err;
569
570 if(pa_get_binary_name(path_name, sizeof(path_name)))
571 name = pa_path_get_filename(path_name);
572
573 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
574 if(!context)
575 {
576 ERR("pa_context_new() failed\n");
577 return NULL;
578 }
579
580 pa_context_set_state_callback(context, context_state_callback, loop);
581
582 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
583 {
584 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
585 {
586 if(!PA_CONTEXT_IS_GOOD(state))
587 {
588 err = pa_context_errno(context);
589 if(err > 0) err = -err;
590 break;
591 }
592
593 pa_threaded_mainloop_wait(loop);
594 }
595 }
596 pa_context_set_state_callback(context, NULL, NULL);
597
598 if(err < 0)
599 {
600 if(!silent)
601 ERR("Context did not connect: %s\n", pa_strerror(err));
602 pa_context_unref(context);
603 return NULL;
604 }
605
606 return context;
607 }
608
609 static pa_stream *connect_playback_stream(const char *device_name,
610 pa_threaded_mainloop *loop, pa_context *context,
611 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
612 pa_channel_map *chanmap)
613 {
614 pa_stream_state_t state;
615 pa_stream *stream;
616
617 stream = pa_stream_new_with_proplist(context, "Playback Stream", spec, chanmap, prop_filter);
618 if(!stream)
619 {
620 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
621 return NULL;
622 }
623
624 pa_stream_set_state_callback(stream, stream_state_callback, loop);
625
626 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
627 {
628 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
629 pa_stream_unref(stream);
630 return NULL;
631 }
632
633 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
634 {
635 if(!PA_STREAM_IS_GOOD(state))
636 {
637 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
638 pa_stream_unref(stream);
639 return NULL;
640 }
641
642 pa_threaded_mainloop_wait(loop);
643 }
644 pa_stream_set_state_callback(stream, NULL, NULL);
645
646 return stream;
647 }
648
649 static pa_stream *connect_record_stream(const char *device_name,
650 pa_threaded_mainloop *loop, pa_context *context,
651 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
652 pa_channel_map *chanmap)
653 {
654 pa_stream_state_t state;
655 pa_stream *stream;
656
657 stream = pa_stream_new_with_proplist(context, "Capture Stream", spec, chanmap, prop_filter);
658 if(!stream)
659 {
660 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
661 return NULL;
662 }
663
664 pa_stream_set_state_callback(stream, stream_state_callback, loop);
665
666 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
667 {
668 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
669 pa_stream_unref(stream);
670 return NULL;
671 }
672
673 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
674 {
675 if(!PA_STREAM_IS_GOOD(state))
676 {
677 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
678 pa_stream_unref(stream);
679 return NULL;
680 }
681
682 pa_threaded_mainloop_wait(loop);
683 }
684 pa_stream_set_state_callback(stream, NULL, NULL);
685
686 return stream;
687 }
688
689
690 #define WAIT_FOR_OPERATION(x, l) do { \
691 pa_threaded_mainloop *_l = (l); \
692 pa_operation *_o = (x); \
693 if(!_o) break; \
694 while(pa_operation_get_state(_o) == PA_OPERATION_RUNNING) \
695 pa_threaded_mainloop_wait(_l); \
696 pa_operation_unref(_o); \
697 } while(0)
698
699
700 static void probe_devices(ALboolean capture)
701 {
702 pa_threaded_mainloop *loop;
703
704 if(capture == AL_FALSE)
705 allDevNameMap = malloc(sizeof(DevMap) * 1);
706 else
707 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
708
709 if((loop=pa_threaded_mainloop_new()) &&
710 pa_threaded_mainloop_start(loop) >= 0)
711 {
712 pa_context *context;
713
714 pa_threaded_mainloop_lock(loop);
715 context = connect_context(loop, AL_FALSE);
716 if(context)
717 {
718 pa_operation *o;
719
720 if(capture == AL_FALSE)
721 {
722 pa_stream_flags_t flags;
723 pa_sample_spec spec;
724 pa_stream *stream;
725
726 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
727 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
728
729 spec.format = PA_SAMPLE_S16NE;
730 spec.rate = 44100;
731 spec.channels = 2;
732
733 stream = connect_playback_stream(NULL, loop, context, flags,
734 NULL, &spec, NULL);
735 if(stream)
736 {
737 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
738 WAIT_FOR_OPERATION(o, loop);
739
740 pa_stream_disconnect(stream);
741 pa_stream_unref(stream);
742 stream = NULL;
743 }
744
745 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
746 }
747 else
748 {
749 pa_stream_flags_t flags;
750 pa_sample_spec spec;
751 pa_stream *stream;
752
753 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
754 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
755
756 spec.format = PA_SAMPLE_S16NE;
757 spec.rate = 44100;
758 spec.channels = 1;
759
760 stream = connect_record_stream(NULL, loop, context, flags,
761 NULL, &spec, NULL);
762 if(stream)
763 {
764 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
765 WAIT_FOR_OPERATION(o, loop);
766
767 pa_stream_disconnect(stream);
768 pa_stream_unref(stream);
769 stream = NULL;
770 }
771
772 o = pa_context_get_source_info_list(context, source_device_callback, loop);
773 }
774 WAIT_FOR_OPERATION(o, loop);
775
776 pa_context_disconnect(context);
777 pa_context_unref(context);
778 }
779 pa_threaded_mainloop_unlock(loop);
780 pa_threaded_mainloop_stop(loop);
781 }
782 if(loop)
783 pa_threaded_mainloop_free(loop);
784 }
785
786
787 static ALuint PulseProc(ALvoid *param)
788 {
789 ALCdevice *Device = param;
790 pulse_data *data = Device->ExtraData;
791 ALuint buffer_size;
792 ALint update_size;
793 size_t frame_size;
794 ssize_t len;
795
796 SetRTPriority();
797
798 pa_threaded_mainloop_lock(data->loop);
799 frame_size = pa_frame_size(&data->spec);
800 update_size = Device->UpdateSize * frame_size;
801
802 /* Sanitize buffer metrics, in case we actually have less than what we
803 * asked for. */
804 buffer_size = minu(update_size*Device->NumUpdates, data->attr.tlength);
805 update_size = minu(update_size, buffer_size/2);
806 do {
807 len = pa_stream_writable_size(data->stream) - data->attr.tlength +
808 buffer_size;
809 if(len < update_size)
810 {
811 if(pa_stream_is_corked(data->stream) == 1)
812 {
813 pa_operation *o;
814 o = pa_stream_cork(data->stream, 0, NULL, NULL);
815 if(o) pa_operation_unref(o);
816 }
817 pa_threaded_mainloop_unlock(data->loop);
818 Sleep(1);
819 pa_threaded_mainloop_lock(data->loop);
820 continue;
821 }
822 len -= len%update_size;
823
824 while(len > 0)
825 {
826 size_t newlen = len;
827 void *buf;
828 pa_free_cb_t free_func = NULL;
829
830 #if PA_CHECK_VERSION(0,9,16)
831 if(!pa_stream_begin_write ||
832 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
833 #endif
834 {
835 buf = pa_xmalloc(newlen);
836 free_func = pa_xfree;
837 }
838 pa_threaded_mainloop_unlock(data->loop);
839
840 aluMixData(Device, buf, newlen/frame_size);
841
842 pa_threaded_mainloop_lock(data->loop);
843 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
844 len -= newlen;
845 }
846 } while(!data->killNow && Device->Connected);
847 pa_threaded_mainloop_unlock(data->loop);
848
849 return 0;
850 }
851
852
853 static ALCboolean pulse_open(ALCdevice *device)
854 {
855 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
856 memset(data, 0, sizeof(*data));
857
858 if(!(data->loop = pa_threaded_mainloop_new()))
859 {
860 ERR("pa_threaded_mainloop_new() failed!\n");
861 goto out;
862 }
863 if(pa_threaded_mainloop_start(data->loop) < 0)
864 {
865 ERR("pa_threaded_mainloop_start() failed\n");
866 goto out;
867 }
868
869 pa_threaded_mainloop_lock(data->loop);
870 device->ExtraData = data;
871
872 data->context = connect_context(data->loop, AL_FALSE);
873 if(!data->context)
874 {
875 pa_threaded_mainloop_unlock(data->loop);
876 goto out;
877 }
878 pa_context_set_state_callback(data->context, context_state_callback2, device);
879
880 pa_threaded_mainloop_unlock(data->loop);
881 return ALC_TRUE;
882
883 out:
884 if(data->loop)
885 {
886 pa_threaded_mainloop_stop(data->loop);
887 pa_threaded_mainloop_free(data->loop);
888 }
889
890 device->ExtraData = NULL;
891 pa_xfree(data);
892 return ALC_FALSE;
893 }
894
895 static void pulse_close(ALCdevice *device)
896 {
897 pulse_data *data = device->ExtraData;
898
899 pa_threaded_mainloop_lock(data->loop);
900
901 if(data->stream)
902 {
903 pa_stream_set_moved_callback(data->stream, NULL, NULL);
904 #if PA_CHECK_VERSION(0,9,15)
905 if(pa_stream_set_buffer_attr_callback)
906 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
907 #endif
908 pa_stream_disconnect(data->stream);
909 pa_stream_unref(data->stream);
910 }
911
912 pa_context_disconnect(data->context);
913 pa_context_unref(data->context);
914
915 pa_threaded_mainloop_unlock(data->loop);
916
917 pa_threaded_mainloop_stop(data->loop);
918 pa_threaded_mainloop_free(data->loop);
919
920 free(data->device_name);
921
922 device->ExtraData = NULL;
923 pa_xfree(data);
924 }
925
926 /* OpenAL */
927 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name)
928 {
929 const char *pulse_name = NULL;
930 pa_stream_flags_t flags;
931 pa_sample_spec spec;
932 pulse_data *data;
933 pa_operation *o;
934
935 if(device_name)
936 {
937 ALuint i;
938
939 if(!allDevNameMap)
940 probe_devices(AL_FALSE);
941
942 for(i = 0;i < numDevNames;i++)
943 {
944 if(strcmp(device_name, allDevNameMap[i].name) == 0)
945 {
946 pulse_name = allDevNameMap[i].device_name;
947 break;
948 }
949 }
950 if(i == numDevNames)
951 return ALC_INVALID_VALUE;
952 }
953
954 if(pulse_open(device) == ALC_FALSE)
955 return ALC_INVALID_VALUE;
956
957 data = device->ExtraData;
958 pa_threaded_mainloop_lock(data->loop);
959
960 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
961 PA_STREAM_FIX_CHANNELS;
962 if(!GetConfigValueBool("pulse", "allow-moves", 0))
963 flags |= PA_STREAM_DONT_MOVE;
964
965 spec.format = PA_SAMPLE_S16NE;
966 spec.rate = 44100;
967 spec.channels = 2;
968
969 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
970 flags, NULL, &spec, NULL);
971 if(!data->stream)
972 {
973 pa_threaded_mainloop_unlock(data->loop);
974 pulse_close(device);
975 return ALC_INVALID_VALUE;
976 }
977
978 data->device_name = strdup(pa_stream_get_device_name(data->stream));
979 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
980 sink_name_callback, device);
981 WAIT_FOR_OPERATION(o, data->loop);
982
983 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
984
985 pa_threaded_mainloop_unlock(data->loop);
986
987 return ALC_NO_ERROR;
988 }
989
990 static void pulse_close_playback(ALCdevice *device)
991 {
992 pulse_close(device);
993 }
994
995 static ALCboolean pulse_reset_playback(ALCdevice *device)
996 {
997 pulse_data *data = device->ExtraData;
998 pa_stream_flags_t flags = 0;
999 pa_channel_map chanmap;
1000
1001 pa_threaded_mainloop_lock(data->loop);
1002
1003 if(data->stream)
1004 {
1005 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1006 #if PA_CHECK_VERSION(0,9,15)
1007 if(pa_stream_set_buffer_attr_callback)
1008 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1009 #endif
1010 pa_stream_disconnect(data->stream);
1011 pa_stream_unref(data->stream);
1012 data->stream = NULL;
1013 }
1014
1015 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
1016 {
1017 pa_operation *o;
1018 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
1019 WAIT_FOR_OPERATION(o, data->loop);
1020 }
1021 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
1022 flags |= PA_STREAM_FIX_RATE;
1023
1024 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
1025 flags |= PA_STREAM_ADJUST_LATENCY;
1026 flags |= PA_STREAM_START_CORKED;
1027 if(!GetConfigValueBool("pulse", "allow-moves", 0))
1028 flags |= PA_STREAM_DONT_MOVE;
1029
1030 switch(device->FmtType)
1031 {
1032 case DevFmtByte:
1033 device->FmtType = DevFmtUByte;
1034 /* fall-through */
1035 case DevFmtUByte:
1036 data->spec.format = PA_SAMPLE_U8;
1037 break;
1038 case DevFmtUShort:
1039 device->FmtType = DevFmtShort;
1040 /* fall-through */
1041 case DevFmtShort:
1042 data->spec.format = PA_SAMPLE_S16NE;
1043 break;
1044 case DevFmtUInt:
1045 device->FmtType = DevFmtInt;
1046 /* fall-through */
1047 case DevFmtInt:
1048 data->spec.format = PA_SAMPLE_S32NE;
1049 break;
1050 case DevFmtFloat:
1051 data->spec.format = PA_SAMPLE_FLOAT32NE;
1052 break;
1053 }
1054 data->spec.rate = device->Frequency;
1055 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1056
1057 if(pa_sample_spec_valid(&data->spec) == 0)
1058 {
1059 ERR("Invalid sample format\n");
1060 pa_threaded_mainloop_unlock(data->loop);
1061 return ALC_FALSE;
1062 }
1063
1064 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1065 {
1066 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1067 pa_threaded_mainloop_unlock(data->loop);
1068 return ALC_FALSE;
1069 }
1070 SetDefaultWFXChannelOrder(device);
1071
1072 data->attr.fragsize = -1;
1073 data->attr.prebuf = 0;
1074 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1075 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1076 data->attr.maxlength = -1;
1077
1078 data->stream = connect_playback_stream(data->device_name, data->loop,
1079 data->context, flags, &data->attr,
1080 &data->spec, &chanmap);
1081 if(!data->stream)
1082 {
1083 pa_threaded_mainloop_unlock(data->loop);
1084 return ALC_FALSE;
1085 }
1086 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1087
1088 data->spec = *(pa_stream_get_sample_spec(data->stream));
1089 if(device->Frequency != data->spec.rate)
1090 {
1091 pa_operation *o;
1092
1093 /* Server updated our playback rate, so modify the buffer attribs
1094 * accordingly. */
1095 data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
1096 device->Frequency * pa_frame_size(&data->spec);
1097 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1098 data->attr.prebuf = 0;
1099
1100 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1101 stream_success_callback, device);
1102 WAIT_FOR_OPERATION(o, data->loop);
1103
1104 device->Frequency = data->spec.rate;
1105 }
1106
1107 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
1108 #if PA_CHECK_VERSION(0,9,15)
1109 if(pa_stream_set_buffer_attr_callback)
1110 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1111 #endif
1112 stream_buffer_attr_callback(data->stream, device);
1113
1114 device->NumUpdates = device->UpdateSize*device->NumUpdates /
1115 (data->attr.minreq/pa_frame_size(&data->spec));
1116 device->NumUpdates = maxu(device->NumUpdates, 2);
1117 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1118
1119 pa_threaded_mainloop_unlock(data->loop);
1120 return ALC_TRUE;
1121 }
1122
1123 static ALCboolean pulse_start_playback(ALCdevice *device)
1124 {
1125 pulse_data *data = device->ExtraData;
1126
1127 data->thread = StartThread(PulseProc, device);
1128 if(!data->thread)
1129 return ALC_FALSE;
1130
1131 return ALC_TRUE;
1132 }
1133
1134 static void pulse_stop_playback(ALCdevice *device)
1135 {
1136 pulse_data *data = device->ExtraData;
1137 pa_operation *o;
1138
1139 if(!data->stream)
1140 return;
1141
1142 data->killNow = AL_TRUE;
1143 if(data->thread)
1144 {
1145 StopThread(data->thread);
1146 data->thread = NULL;
1147 }
1148 data->killNow = AL_FALSE;
1149
1150 pa_threaded_mainloop_lock(data->loop);
1151
1152 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1153 WAIT_FOR_OPERATION(o, data->loop);
1154
1155 pa_threaded_mainloop_unlock(data->loop);
1156 }
1157
1158
1159 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name)
1160 {
1161 const char *pulse_name = NULL;
1162 pa_stream_flags_t flags = 0;
1163 pa_channel_map chanmap;
1164 pulse_data *data;
1165 pa_operation *o;
1166 ALuint samples;
1167
1168 if(device_name)
1169 {
1170 ALuint i;
1171
1172 if(!allCaptureDevNameMap)
1173 probe_devices(AL_TRUE);
1174
1175 for(i = 0;i < numCaptureDevNames;i++)
1176 {
1177 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1178 {
1179 pulse_name = allCaptureDevNameMap[i].device_name;
1180 break;
1181 }
1182 }
1183 if(i == numCaptureDevNames)
1184 return ALC_INVALID_VALUE;
1185 }
1186
1187 if(pulse_open(device) == ALC_FALSE)
1188 return ALC_INVALID_VALUE;
1189
1190 data = device->ExtraData;
1191 pa_threaded_mainloop_lock(data->loop);
1192
1193 data->spec.rate = device->Frequency;
1194 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1195
1196 switch(device->FmtType)
1197 {
1198 case DevFmtUByte:
1199 data->spec.format = PA_SAMPLE_U8;
1200 break;
1201 case DevFmtShort:
1202 data->spec.format = PA_SAMPLE_S16NE;
1203 break;
1204 case DevFmtInt:
1205 data->spec.format = PA_SAMPLE_S32NE;
1206 break;
1207 case DevFmtFloat:
1208 data->spec.format = PA_SAMPLE_FLOAT32NE;
1209 break;
1210 case DevFmtByte:
1211 case DevFmtUShort:
1212 case DevFmtUInt:
1213 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1214 pa_threaded_mainloop_unlock(data->loop);
1215 goto fail;
1216 }
1217
1218 if(pa_sample_spec_valid(&data->spec) == 0)
1219 {
1220 ERR("Invalid sample format\n");
1221 pa_threaded_mainloop_unlock(data->loop);
1222 goto fail;
1223 }
1224
1225 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1226 {
1227 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1228 pa_threaded_mainloop_unlock(data->loop);
1229 goto fail;
1230 }
1231
1232 samples = device->UpdateSize * device->NumUpdates;
1233 samples = maxu(samples, 100 * device->Frequency / 1000);
1234
1235 data->attr.minreq = -1;
1236 data->attr.prebuf = -1;
1237 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1238 data->attr.tlength = -1;
1239 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1240 pa_frame_size(&data->spec);
1241
1242 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1243 if(!GetConfigValueBool("pulse", "allow-moves", 0))
1244 flags |= PA_STREAM_DONT_MOVE;
1245
1246 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1247 flags, &data->attr, &data->spec,
1248 &chanmap);
1249 if(!data->stream)
1250 {
1251 pa_threaded_mainloop_unlock(data->loop);
1252 goto fail;
1253 }
1254 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1255
1256 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1257 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1258 source_name_callback, device);
1259 WAIT_FOR_OPERATION(o, data->loop);
1260
1261 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
1262
1263 pa_threaded_mainloop_unlock(data->loop);
1264 return ALC_NO_ERROR;
1265
1266 fail:
1267 pulse_close(device);
1268 return ALC_INVALID_VALUE;
1269 }
1270
1271 static void pulse_close_capture(ALCdevice *device)
1272 {
1273 pulse_close(device);
1274 }
1275
1276 static void pulse_start_capture(ALCdevice *device)
1277 {
1278 pulse_data *data = device->ExtraData;
1279 pa_operation *o;
1280
1281 pa_threaded_mainloop_lock(data->loop);
1282 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1283 WAIT_FOR_OPERATION(o, data->loop);
1284 pa_threaded_mainloop_unlock(data->loop);
1285 }
1286
1287 static void pulse_stop_capture(ALCdevice *device)
1288 {
1289 pulse_data *data = device->ExtraData;
1290 pa_operation *o;
1291
1292 pa_threaded_mainloop_lock(data->loop);
1293 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1294 WAIT_FOR_OPERATION(o, data->loop);
1295 pa_threaded_mainloop_unlock(data->loop);
1296 }
1297
1298 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
1299 {
1300 pulse_data *data = device->ExtraData;
1301 ALCuint todo = samples * pa_frame_size(&data->spec);
1302
1303 pa_threaded_mainloop_lock(data->loop);
1304 /* Capture is done in fragment-sized chunks, so we loop until we get all
1305 * that's available */
1306 data->last_readable -= todo;
1307 while(todo > 0)
1308 {
1309 size_t rem = todo;
1310
1311 if(data->cap_len == 0)
1312 {
1313 pa_stream_state_t state;
1314
1315 state = pa_stream_get_state(data->stream);
1316 if(!PA_STREAM_IS_GOOD(state))
1317 {
1318 aluHandleDisconnect(device);
1319 break;
1320 }
1321 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1322 {
1323 ERR("pa_stream_peek() failed: %s\n",
1324 pa_strerror(pa_context_errno(data->context)));
1325 aluHandleDisconnect(device);
1326 break;
1327 }
1328 data->cap_remain = data->cap_len;
1329 }
1330 if(rem > data->cap_remain)
1331 rem = data->cap_remain;
1332
1333 memcpy(buffer, data->cap_store, rem);
1334
1335 buffer = (ALbyte*)buffer + rem;
1336 todo -= rem;
1337
1338 data->cap_store = (ALbyte*)data->cap_store + rem;
1339 data->cap_remain -= rem;
1340 if(data->cap_remain == 0)
1341 {
1342 pa_stream_drop(data->stream);
1343 data->cap_len = 0;
1344 }
1345 }
1346 if(todo > 0)
1347 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1348 pa_threaded_mainloop_unlock(data->loop);
1349
1350 return ALC_NO_ERROR;
1351 }
1352
1353 static ALCuint pulse_available_samples(ALCdevice *device)
1354 {
1355 pulse_data *data = device->ExtraData;
1356 size_t readable = data->cap_remain;
1357
1358 pa_threaded_mainloop_lock(data->loop);
1359 if(device->Connected)
1360 {
1361 ssize_t got = pa_stream_readable_size(data->stream);
1362 if(got < 0)
1363 {
1364 ERR("pa_stream_readable_size() failed: %s\n", pa_strerror(got));
1365 aluHandleDisconnect(device);
1366 }
1367 else if((size_t)got > data->cap_len)
1368 readable += got - data->cap_len;
1369 }
1370 pa_threaded_mainloop_unlock(data->loop);
1371
1372 if(data->last_readable < readable)
1373 data->last_readable = readable;
1374 return data->last_readable / pa_frame_size(&data->spec);
1375 }
1376
1377
1378 static const BackendFuncs pulse_funcs = {
1379 pulse_open_playback,
1380 pulse_close_playback,
1381 pulse_reset_playback,
1382 pulse_start_playback,
1383 pulse_stop_playback,
1384 pulse_open_capture,
1385 pulse_close_capture,
1386 pulse_start_capture,
1387 pulse_stop_capture,
1388 pulse_capture_samples,
1389 pulse_available_samples
1390 };
1391
1392 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1393 {
1394 ALCboolean ret = ALC_FALSE;
1395
1396 if(pulse_load())
1397 {
1398 pa_threaded_mainloop *loop;
1399
1400 pulse_ctx_flags = 0;
1401 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1402 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1403
1404 if((loop=pa_threaded_mainloop_new()) &&
1405 pa_threaded_mainloop_start(loop) >= 0)
1406 {
1407 pa_context *context;
1408
1409 pa_threaded_mainloop_lock(loop);
1410 context = connect_context(loop, AL_TRUE);
1411 if(context)
1412 {
1413 *func_list = pulse_funcs;
1414 ret = ALC_TRUE;
1415
1416 /* Some libraries (Phonon, Qt) set some pulseaudio properties
1417 * through environment variables, which causes all streams in
1418 * the process to inherit them. This attempts to filter those
1419 * properties out by setting them to 0-length data. */
1420 prop_filter = pa_proplist_new();
1421 pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
1422 pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);
1423
1424 pa_context_disconnect(context);
1425 pa_context_unref(context);
1426 }
1427 pa_threaded_mainloop_unlock(loop);
1428 pa_threaded_mainloop_stop(loop);
1429 }
1430 if(loop)
1431 pa_threaded_mainloop_free(loop);
1432 }
1433
1434 return ret;
1435 }
1436
1437 void alc_pulse_deinit(void)
1438 {
1439 ALuint i;
1440
1441 for(i = 0;i < numDevNames;++i)
1442 {
1443 free(allDevNameMap[i].name);
1444 free(allDevNameMap[i].device_name);
1445 }
1446 free(allDevNameMap);
1447 allDevNameMap = NULL;
1448 numDevNames = 0;
1449
1450 for(i = 0;i < numCaptureDevNames;++i)
1451 {
1452 free(allCaptureDevNameMap[i].name);
1453 free(allCaptureDevNameMap[i].device_name);
1454 }
1455 free(allCaptureDevNameMap);
1456 allCaptureDevNameMap = NULL;
1457 numCaptureDevNames = 0;
1458
1459 if(prop_filter)
1460 pa_proplist_free(prop_filter);
1461 prop_filter = NULL;
1462
1463 /* PulseAudio doesn't like being CloseLib'd sometimes */
1464 }
1465
1466 void alc_pulse_probe(enum DevProbe type)
1467 {
1468 ALuint i;
1469
1470 switch(type)
1471 {
1472 case ALL_DEVICE_PROBE:
1473 for(i = 0;i < numDevNames;++i)
1474 {
1475 free(allDevNameMap[i].name);
1476 free(allDevNameMap[i].device_name);
1477 }
1478 free(allDevNameMap);
1479 allDevNameMap = NULL;
1480 numDevNames = 0;
1481
1482 probe_devices(AL_FALSE);
1483
1484 for(i = 0;i < numDevNames;i++)
1485 AppendAllDevicesList(allDevNameMap[i].name);
1486 break;
1487
1488 case CAPTURE_DEVICE_PROBE:
1489 for(i = 0;i < numCaptureDevNames;++i)
1490 {
1491 free(allCaptureDevNameMap[i].name);
1492 free(allCaptureDevNameMap[i].device_name);
1493 }
1494 free(allCaptureDevNameMap);
1495 allCaptureDevNameMap = NULL;
1496 numCaptureDevNames = 0;
1497
1498 probe_devices(AL_TRUE);
1499
1500 for(i = 0;i < numCaptureDevNames;i++)
1501 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1502 break;
1503 }
1504 }
1505
1506 #else
1507
1508 #warning "Unsupported API version, backend will be unavailable!"
1509
1510 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1511 { return ALC_FALSE; (void)func_list; }
1512
1513 void alc_pulse_deinit(void)
1514 { }
1515
1516 void alc_pulse_probe(enum DevProbe type)
1517 { (void)type; }
1518
1519 #endif
Software OpenAL implementation