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Use NULL to open the default PulseAudio device, and get the actual device name from...
[openal-soft.git] / Alc / backends / pulseaudio.c
blob0b1d9521ce99db4ee0a2de6a6e0b7265bdba7e12
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_cork);
65 MAKE_FUNC(pa_stream_is_suspended);
66 MAKE_FUNC(pa_stream_get_device_name);
67 MAKE_FUNC(pa_path_get_filename);
68 MAKE_FUNC(pa_get_binary_name);
69 MAKE_FUNC(pa_threaded_mainloop_free);
70 MAKE_FUNC(pa_context_errno);
71 MAKE_FUNC(pa_xmalloc);
72 MAKE_FUNC(pa_stream_unref);
73 MAKE_FUNC(pa_threaded_mainloop_accept);
74 MAKE_FUNC(pa_stream_set_write_callback);
75 MAKE_FUNC(pa_threaded_mainloop_new);
76 MAKE_FUNC(pa_context_connect);
77 MAKE_FUNC(pa_stream_set_buffer_attr);
78 MAKE_FUNC(pa_stream_get_buffer_attr);
79 MAKE_FUNC(pa_stream_get_sample_spec);
80 MAKE_FUNC(pa_stream_get_time);
81 MAKE_FUNC(pa_stream_set_read_callback);
82 MAKE_FUNC(pa_stream_set_state_callback);
83 MAKE_FUNC(pa_stream_set_moved_callback);
84 MAKE_FUNC(pa_stream_set_underflow_callback);
85 MAKE_FUNC(pa_stream_new);
86 MAKE_FUNC(pa_stream_disconnect);
87 MAKE_FUNC(pa_threaded_mainloop_lock);
88 MAKE_FUNC(pa_channel_map_init_auto);
89 MAKE_FUNC(pa_channel_map_parse);
90 MAKE_FUNC(pa_channel_map_snprint);
91 MAKE_FUNC(pa_channel_map_equal);
92 MAKE_FUNC(pa_context_get_server_info);
93 MAKE_FUNC(pa_context_get_sink_info_by_name);
94 MAKE_FUNC(pa_context_get_sink_info_list);
95 MAKE_FUNC(pa_context_get_source_info_by_name);
96 MAKE_FUNC(pa_context_get_source_info_list);
97 MAKE_FUNC(pa_operation_get_state);
98 MAKE_FUNC(pa_operation_unref);
99 #if PA_CHECK_VERSION(0,9,15)
100 MAKE_FUNC(pa_channel_map_superset);
101 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
102 #endif
103 #if PA_CHECK_VERSION(0,9,16)
104 MAKE_FUNC(pa_stream_begin_write);
105 #endif
106 #undef MAKE_FUNC
107
108 #define pa_context_unref ppa_context_unref
109 #define pa_sample_spec_valid ppa_sample_spec_valid
110 #define pa_frame_size ppa_frame_size
111 #define pa_stream_drop ppa_stream_drop
112 #define pa_strerror ppa_strerror
113 #define pa_context_get_state ppa_context_get_state
114 #define pa_stream_get_state ppa_stream_get_state
115 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
116 #define pa_stream_peek ppa_stream_peek
117 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
118 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
119 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
120 #define pa_context_new ppa_context_new
121 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
122 #define pa_context_disconnect ppa_context_disconnect
123 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
124 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
125 #define pa_context_set_state_callback ppa_context_set_state_callback
126 #define pa_stream_write ppa_stream_write
127 #define pa_xfree ppa_xfree
128 #define pa_stream_connect_record ppa_stream_connect_record
129 #define pa_stream_connect_playback ppa_stream_connect_playback
130 #define pa_stream_readable_size ppa_stream_readable_size
131 #define pa_stream_writable_size ppa_stream_writable_size
132 #define pa_stream_cork ppa_stream_cork
133 #define pa_stream_is_suspended ppa_stream_is_suspended
134 #define pa_stream_get_device_name ppa_stream_get_device_name
135 #define pa_path_get_filename ppa_path_get_filename
136 #define pa_get_binary_name ppa_get_binary_name
137 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
138 #define pa_context_errno ppa_context_errno
139 #define pa_xmalloc ppa_xmalloc
140 #define pa_stream_unref ppa_stream_unref
141 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
142 #define pa_stream_set_write_callback ppa_stream_set_write_callback
143 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
144 #define pa_context_connect ppa_context_connect
145 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
146 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
147 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
148 #define pa_stream_get_time ppa_stream_get_time
149 #define pa_stream_set_read_callback ppa_stream_set_read_callback
150 #define pa_stream_set_state_callback ppa_stream_set_state_callback
151 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
152 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
153 #define pa_stream_new ppa_stream_new
154 #define pa_stream_disconnect ppa_stream_disconnect
155 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
156 #define pa_channel_map_init_auto ppa_channel_map_init_auto
157 #define pa_channel_map_parse ppa_channel_map_parse
158 #define pa_channel_map_snprint ppa_channel_map_snprint
159 #define pa_channel_map_equal ppa_channel_map_equal
160 #define pa_context_get_server_info ppa_context_get_server_info
161 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
162 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
163 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
164 #define pa_context_get_source_info_list ppa_context_get_source_info_list
165 #define pa_operation_get_state ppa_operation_get_state
166 #define pa_operation_unref ppa_operation_unref
167 #if PA_CHECK_VERSION(0,9,15)
168 #define pa_channel_map_superset ppa_channel_map_superset
169 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
170 #endif
171 #if PA_CHECK_VERSION(0,9,16)
172 #define pa_stream_begin_write ppa_stream_begin_write
173 #endif
174
175 #endif
176
177 #ifndef PATH_MAX
178 #define PATH_MAX 4096
179 #endif
180
181 typedef struct {
182 char *device_name;
183
184 const void *cap_store;
185 size_t cap_len;
186 size_t cap_remain;
187
188 ALCuint last_readable;
189
190 pa_buffer_attr attr;
191 pa_sample_spec spec;
192
193 pa_threaded_mainloop *loop;
194
195 ALvoid *thread;
196 volatile ALboolean killNow;
197
198 pa_stream *stream;
199 pa_context *context;
200 } pulse_data;
201
202 typedef struct {
203 char *name;
204 char *device_name;
205 } DevMap;
206
207
208 static DevMap *allDevNameMap;
209 static ALuint numDevNames;
210 static DevMap *allCaptureDevNameMap;
211 static ALuint numCaptureDevNames;
212 static pa_context_flags_t pulse_ctx_flags;
213
214
215 static ALCboolean pulse_load(void) //{{{
216 {
217 ALCboolean ret = ALC_TRUE;
218 #ifdef HAVE_DYNLOAD
219 if(!pa_handle)
220 {
221 #ifdef _WIN32
222 #define PALIB "libpulse-0.dll"
223 #elif defined(__APPLE__) && defined(__MACH__)
224 #define PALIB "libpulse.0.dylib"
225 #else
226 #define PALIB "libpulse.so.0"
227 #endif
228 pa_handle = LoadLib(PALIB);
229 if(!pa_handle)
230 return ALC_FALSE;
231
232 #define LOAD_FUNC(x) do { \
233 p##x = GetSymbol(pa_handle, #x); \
234 if(!(p##x)) { \
235 ret = ALC_FALSE; \
236 } \
237 } while(0)
238 LOAD_FUNC(pa_context_unref);
239 LOAD_FUNC(pa_sample_spec_valid);
240 LOAD_FUNC(pa_stream_drop);
241 LOAD_FUNC(pa_frame_size);
242 LOAD_FUNC(pa_strerror);
243 LOAD_FUNC(pa_context_get_state);
244 LOAD_FUNC(pa_stream_get_state);
245 LOAD_FUNC(pa_threaded_mainloop_signal);
246 LOAD_FUNC(pa_stream_peek);
247 LOAD_FUNC(pa_threaded_mainloop_wait);
248 LOAD_FUNC(pa_threaded_mainloop_unlock);
249 LOAD_FUNC(pa_threaded_mainloop_in_thread);
250 LOAD_FUNC(pa_context_new);
251 LOAD_FUNC(pa_threaded_mainloop_stop);
252 LOAD_FUNC(pa_context_disconnect);
253 LOAD_FUNC(pa_threaded_mainloop_start);
254 LOAD_FUNC(pa_threaded_mainloop_get_api);
255 LOAD_FUNC(pa_context_set_state_callback);
256 LOAD_FUNC(pa_stream_write);
257 LOAD_FUNC(pa_xfree);
258 LOAD_FUNC(pa_stream_connect_record);
259 LOAD_FUNC(pa_stream_connect_playback);
260 LOAD_FUNC(pa_stream_readable_size);
261 LOAD_FUNC(pa_stream_writable_size);
262 LOAD_FUNC(pa_stream_cork);
263 LOAD_FUNC(pa_stream_is_suspended);
264 LOAD_FUNC(pa_stream_get_device_name);
265 LOAD_FUNC(pa_path_get_filename);
266 LOAD_FUNC(pa_get_binary_name);
267 LOAD_FUNC(pa_threaded_mainloop_free);
268 LOAD_FUNC(pa_context_errno);
269 LOAD_FUNC(pa_xmalloc);
270 LOAD_FUNC(pa_stream_unref);
271 LOAD_FUNC(pa_threaded_mainloop_accept);
272 LOAD_FUNC(pa_stream_set_write_callback);
273 LOAD_FUNC(pa_threaded_mainloop_new);
274 LOAD_FUNC(pa_context_connect);
275 LOAD_FUNC(pa_stream_set_buffer_attr);
276 LOAD_FUNC(pa_stream_get_buffer_attr);
277 LOAD_FUNC(pa_stream_get_sample_spec);
278 LOAD_FUNC(pa_stream_get_time);
279 LOAD_FUNC(pa_stream_set_read_callback);
280 LOAD_FUNC(pa_stream_set_state_callback);
281 LOAD_FUNC(pa_stream_set_moved_callback);
282 LOAD_FUNC(pa_stream_set_underflow_callback);
283 LOAD_FUNC(pa_stream_new);
284 LOAD_FUNC(pa_stream_disconnect);
285 LOAD_FUNC(pa_threaded_mainloop_lock);
286 LOAD_FUNC(pa_channel_map_init_auto);
287 LOAD_FUNC(pa_channel_map_parse);
288 LOAD_FUNC(pa_channel_map_snprint);
289 LOAD_FUNC(pa_channel_map_equal);
290 LOAD_FUNC(pa_context_get_server_info);
291 LOAD_FUNC(pa_context_get_sink_info_by_name);
292 LOAD_FUNC(pa_context_get_sink_info_list);
293 LOAD_FUNC(pa_context_get_source_info_by_name);
294 LOAD_FUNC(pa_context_get_source_info_list);
295 LOAD_FUNC(pa_operation_get_state);
296 LOAD_FUNC(pa_operation_unref);
297 #undef LOAD_FUNC
298 #define LOAD_OPTIONAL_FUNC(x) do { \
299 p##x = GetSymbol(pa_handle, #x); \
300 } while(0)
301 #if PA_CHECK_VERSION(0,9,15)
302 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
303 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
304 #endif
305 #if PA_CHECK_VERSION(0,9,16)
306 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
307 #endif
308 #undef LOAD_OPTIONAL_FUNC
309
310 if(ret == ALC_FALSE)
311 {
312 CloseLib(pa_handle);
313 pa_handle = NULL;
314 }
315 }
316 #endif /* HAVE_DYNLOAD */
317 return ret;
318 } //}}}
319
320 // PulseAudio Event Callbacks //{{{
321 static void context_state_callback(pa_context *context, void *pdata)
322 {
323 pa_threaded_mainloop *loop = pdata;
324 pa_context_state_t state;
325
326 state = pa_context_get_state(context);
327 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
328 pa_threaded_mainloop_signal(loop, 0);
329 }
330
331 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
332 {
333 pa_threaded_mainloop *loop = pdata;
334 pa_stream_state_t state;
335
336 state = pa_stream_get_state(stream);
337 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
338 pa_threaded_mainloop_signal(loop, 0);
339 }//}}}
340
341 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
342 {
343 ALCdevice *Device = pdata;
344 pulse_data *data = Device->ExtraData;
345 (void)stream;
346
347 pa_threaded_mainloop_signal(data->loop, 0);
348 }//}}}
349
350 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
351 {
352 ALCdevice *device = pdata;
353 pulse_data *data = device->ExtraData;
354
355 data->attr = *pa_stream_get_buffer_attr(stream);
356 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", data->attr.minreq, data->attr.tlength);
357
358 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
359 device->NumUpdates = data->attr.tlength / data->attr.minreq;
360 }//}}}
361
362 static void context_state_callback2(pa_context *context, void *pdata) //{{{
363 {
364 ALCdevice *Device = pdata;
365 pulse_data *data = Device->ExtraData;
366
367 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
368 {
369 ERR("Received context failure!\n");
370 aluHandleDisconnect(Device);
371 }
372 pa_threaded_mainloop_signal(data->loop, 0);
373 }//}}}
374
375 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
376 {
377 ALCdevice *Device = pdata;
378 pulse_data *data = Device->ExtraData;
379
380 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
381 {
382 ERR("Received stream failure!\n");
383 aluHandleDisconnect(Device);
384 }
385 pa_threaded_mainloop_signal(data->loop, 0);
386 }//}}}
387
388 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
389 {
390 ALCdevice *Device = pdata;
391 pulse_data *data = Device->ExtraData;
392 (void)stream;
393 (void)success;
394
395 pa_threaded_mainloop_signal(data->loop, 0);
396 }//}}}
397
398 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
399 {
400 ALCdevice *device = pdata;
401 pulse_data *data = device->ExtraData;
402 char chanmap_str[256] = "";
403 const struct {
404 const char *str;
405 enum DevFmtChannels chans;
406 } chanmaps[] = {
407 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
408 DevFmtX71 },
409 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
410 DevFmtX61 },
411 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
412 DevFmtX51 },
413 { "front-left,front-right,front-center,lfe,side-left,side-right",
414 DevFmtX51Side },
415 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
416 { "front-left,front-right", DevFmtStereo },
417 { "mono", DevFmtMono },
418 { NULL, 0 }
419 };
420 int i;
421 (void)context;
422
423 if(eol)
424 {
425 pa_threaded_mainloop_signal(data->loop, 0);
426 return;
427 }
428
429 for(i = 0;chanmaps[i].str;i++)
430 {
431 pa_channel_map map;
432 if(!pa_channel_map_parse(&map, chanmaps[i].str))
433 continue;
434
435 if(pa_channel_map_equal(&info->channel_map, &map)
436 #if PA_CHECK_VERSION(0,9,15)
437 || (pa_channel_map_superset &&
438 pa_channel_map_superset(&info->channel_map, &map))
439 #endif
440 )
441 {
442 device->FmtChans = chanmaps[i].chans;
443 return;
444 }
445 }
446
447 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
448 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
449 }//}}}
450
451 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
452 {
453 pa_threaded_mainloop *loop = pdata;
454 void *temp;
455 ALuint i;
456
457 (void)context;
458
459 if(eol)
460 {
461 pa_threaded_mainloop_signal(loop, 0);
462 return;
463 }
464
465 for(i = 0;i < numDevNames;i++)
466 {
467 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
468 return;
469 }
470
471 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
472
473 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
474 if(temp)
475 {
476 allDevNameMap = temp;
477 allDevNameMap[numDevNames].name = strdup(info->description);
478 allDevNameMap[numDevNames].device_name = strdup(info->name);
479 numDevNames++;
480 }
481 }//}}}
482
483 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
484 {
485 pa_threaded_mainloop *loop = pdata;
486 void *temp;
487 ALuint i;
488
489 (void)context;
490
491 if(eol)
492 {
493 pa_threaded_mainloop_signal(loop, 0);
494 return;
495 }
496
497 for(i = 0;i < numCaptureDevNames;i++)
498 {
499 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
500 return;
501 }
502
503 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
504
505 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
506 if(temp)
507 {
508 allCaptureDevNameMap = temp;
509 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
510 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
511 numCaptureDevNames++;
512 }
513 }//}}}
514
515 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
516 {
517 ALCdevice *device = pdata;
518 pulse_data *data = device->ExtraData;
519 (void)context;
520
521 if(eol)
522 {
523 pa_threaded_mainloop_signal(data->loop, 0);
524 return;
525 }
526
527 free(device->szDeviceName);
528 device->szDeviceName = strdup(info->description);
529 }
530
531 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
532 {
533 ALCdevice *device = pdata;
534 pulse_data *data = device->ExtraData;
535 (void)context;
536
537 if(eol)
538 {
539 pa_threaded_mainloop_signal(data->loop, 0);
540 return;
541 }
542
543 free(device->szDeviceName);
544 device->szDeviceName = strdup(info->description);
545 }
546 //}}}
547
548
549 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
550 {
551 const char *name = "OpenAL Soft";
552 char path_name[PATH_MAX];
553 pa_context_state_t state;
554 pa_context *context;
555 int err;
556
557 if(pa_get_binary_name(path_name, sizeof(path_name)))
558 name = pa_path_get_filename(path_name);
559
560 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
561 if(!context)
562 {
563 ERR("pa_context_new() failed\n");
564 return NULL;
565 }
566
567 pa_context_set_state_callback(context, context_state_callback, loop);
568
569 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
570 {
571 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
572 {
573 if(!PA_CONTEXT_IS_GOOD(state))
574 {
575 err = pa_context_errno(context);
576 if(err > 0) err = -err;
577 break;
578 }
579
580 pa_threaded_mainloop_wait(loop);
581 }
582 }
583 pa_context_set_state_callback(context, NULL, NULL);
584
585 if(err < 0)
586 {
587 if(!silent)
588 ERR("Context did not connect: %s\n", pa_strerror(err));
589 pa_context_unref(context);
590 return NULL;
591 }
592
593 return context;
594 }
595
596 static pa_stream *connect_playback_stream(const char *device_name,
597 pa_threaded_mainloop *loop, pa_context *context,
598 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
599 pa_channel_map *chanmap)
600 {
601 pa_stream_state_t state;
602 pa_stream *stream;
603
604 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
605 if(!stream)
606 {
607 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
608 return NULL;
609 }
610
611 pa_stream_set_state_callback(stream, stream_state_callback, loop);
612
613 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
614 {
615 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
616 pa_stream_unref(stream);
617 return NULL;
618 }
619
620 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
621 {
622 if(!PA_STREAM_IS_GOOD(state))
623 {
624 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
625 pa_stream_unref(stream);
626 return NULL;
627 }
628
629 pa_threaded_mainloop_wait(loop);
630 }
631 pa_stream_set_state_callback(stream, NULL, NULL);
632
633 return stream;
634 }
635
636 static pa_stream *connect_record_stream(const char *device_name,
637 pa_threaded_mainloop *loop, pa_context *context,
638 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
639 pa_channel_map *chanmap)
640 {
641 pa_stream_state_t state;
642 pa_stream *stream;
643
644 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
645 if(!stream)
646 {
647 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
648 return NULL;
649 }
650
651 pa_stream_set_state_callback(stream, stream_state_callback, loop);
652
653 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
654 {
655 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
656 pa_stream_unref(stream);
657 return NULL;
658 }
659
660 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
661 {
662 if(!PA_STREAM_IS_GOOD(state))
663 {
664 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
665 pa_stream_unref(stream);
666 return NULL;
667 }
668
669 pa_threaded_mainloop_wait(loop);
670 }
671 pa_stream_set_state_callback(stream, NULL, NULL);
672
673 return stream;
674 }
675
676
677 static void probe_devices(ALboolean capture)
678 {
679 pa_threaded_mainloop *loop;
680
681 if(capture == AL_FALSE)
682 allDevNameMap = malloc(sizeof(DevMap) * 1);
683 else
684 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
685
686 if((loop=pa_threaded_mainloop_new()) &&
687 pa_threaded_mainloop_start(loop) >= 0)
688 {
689 pa_context *context;
690
691 pa_threaded_mainloop_lock(loop);
692 context = connect_context(loop, AL_FALSE);
693 if(context)
694 {
695 pa_operation *o;
696
697 if(capture == AL_FALSE)
698 {
699 pa_stream_flags_t flags;
700 pa_sample_spec spec;
701 pa_stream *stream;
702
703 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
704 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
705
706 spec.format = PA_SAMPLE_S16NE;
707 spec.rate = 44100;
708 spec.channels = 2;
709
710 stream = connect_playback_stream(NULL, loop, context, flags,
711 NULL, &spec, NULL);
712 if(stream)
713 {
714 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
715 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
716 pa_threaded_mainloop_wait(loop);
717 pa_operation_unref(o);
718
719 pa_stream_disconnect(stream);
720 pa_stream_unref(stream);
721 stream = NULL;
722 }
723
724 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
725 }
726 else
727 {
728 pa_stream_flags_t flags;
729 pa_sample_spec spec;
730 pa_stream *stream;
731
732 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
733 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
734
735 spec.format = PA_SAMPLE_S16NE;
736 spec.rate = 44100;
737 spec.channels = 1;
738
739 stream = connect_record_stream(NULL, loop, context, flags,
740 NULL, &spec, NULL);
741 if(stream)
742 {
743 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
744 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
745 pa_threaded_mainloop_wait(loop);
746 pa_operation_unref(o);
747
748 pa_stream_disconnect(stream);
749 pa_stream_unref(stream);
750 stream = NULL;
751 }
752
753 o = pa_context_get_source_info_list(context, source_device_callback, loop);
754 }
755 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
756 pa_threaded_mainloop_wait(loop);
757 pa_operation_unref(o);
758
759 pa_context_disconnect(context);
760 pa_context_unref(context);
761 }
762 pa_threaded_mainloop_unlock(loop);
763 pa_threaded_mainloop_stop(loop);
764 }
765 if(loop)
766 pa_threaded_mainloop_free(loop);
767 }
768
769
770 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata)
771 {
772 ALCdevice *Device = pdata;
773 pulse_data *data = Device->ExtraData;
774 (void)stream;
775 (void)len;
776
777 pa_threaded_mainloop_signal(data->loop, 0);
778 }
779
780 static ALuint PulseProc(ALvoid *param)
781 {
782 ALCdevice *Device = param;
783 pulse_data *data = Device->ExtraData;
784 size_t frame_size;
785 size_t len;
786
787 SetRTPriority();
788
789 frame_size = pa_frame_size(&data->spec);
790 pa_threaded_mainloop_lock(data->loop);
791 do {
792 len = pa_stream_writable_size(data->stream);
793 if(len < data->attr.minreq)
794 {
795 pa_threaded_mainloop_wait(data->loop);
796 continue;
797 }
798 len -= len%data->attr.minreq;
799
800 while(len > 0)
801 {
802 size_t newlen = len;
803 void *buf;
804 pa_free_cb_t free_func = NULL;
805
806 #if PA_CHECK_VERSION(0,9,16)
807 if(!pa_stream_begin_write ||
808 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
809 #endif
810 {
811 buf = pa_xmalloc(newlen);
812 free_func = pa_xfree;
813 }
814 pa_threaded_mainloop_unlock(data->loop);
815
816 aluMixData(Device, buf, newlen/frame_size);
817
818 pa_threaded_mainloop_lock(data->loop);
819 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
820 len -= newlen;
821 }
822 } while(!data->killNow && Device->Connected);
823 pa_threaded_mainloop_unlock(data->loop);
824
825 return 0;
826 }
827
828
829 static ALCboolean pulse_open(ALCdevice *device) //{{{
830 {
831 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
832 memset(data, 0, sizeof(*data));
833
834 if(!(data->loop = pa_threaded_mainloop_new()))
835 {
836 ERR("pa_threaded_mainloop_new() failed!\n");
837 goto out;
838 }
839 if(pa_threaded_mainloop_start(data->loop) < 0)
840 {
841 ERR("pa_threaded_mainloop_start() failed\n");
842 goto out;
843 }
844
845 pa_threaded_mainloop_lock(data->loop);
846 device->ExtraData = data;
847
848 data->context = connect_context(data->loop, AL_FALSE);
849 if(!data->context)
850 {
851 pa_threaded_mainloop_unlock(data->loop);
852 goto out;
853 }
854 pa_context_set_state_callback(data->context, context_state_callback2, device);
855
856 pa_threaded_mainloop_unlock(data->loop);
857 return ALC_TRUE;
858
859 out:
860 if(data->loop)
861 {
862 pa_threaded_mainloop_stop(data->loop);
863 pa_threaded_mainloop_free(data->loop);
864 }
865
866 device->ExtraData = NULL;
867 pa_xfree(data);
868 return ALC_FALSE;
869 } //}}}
870
871 static void pulse_close(ALCdevice *device) //{{{
872 {
873 pulse_data *data = device->ExtraData;
874
875 pa_threaded_mainloop_lock(data->loop);
876
877 if(data->stream)
878 {
879 pa_stream_disconnect(data->stream);
880 pa_stream_unref(data->stream);
881 }
882
883 pa_context_disconnect(data->context);
884 pa_context_unref(data->context);
885
886 pa_threaded_mainloop_unlock(data->loop);
887
888 pa_threaded_mainloop_stop(data->loop);
889 pa_threaded_mainloop_free(data->loop);
890
891 free(data->device_name);
892
893 device->ExtraData = NULL;
894 pa_xfree(data);
895 } //}}}
896 //}}}
897
898 // OpenAL {{{
899 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
900 {
901 const char *pulse_name = NULL;
902 pa_stream_flags_t flags;
903 pa_sample_spec spec;
904 pulse_data *data;
905 pa_operation *o;
906
907 if(device_name)
908 {
909 ALuint i;
910
911 if(!allDevNameMap)
912 probe_devices(AL_FALSE);
913
914 for(i = 0;i < numDevNames;i++)
915 {
916 if(strcmp(device_name, allDevNameMap[i].name) == 0)
917 {
918 pulse_name = allDevNameMap[i].device_name;
919 break;
920 }
921 }
922 if(i == numDevNames)
923 return ALC_INVALID_VALUE;
924 }
925
926 if(pulse_open(device) == ALC_FALSE)
927 return ALC_INVALID_VALUE;
928
929 data = device->ExtraData;
930 pa_threaded_mainloop_lock(data->loop);
931
932 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
933 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
934
935 spec.format = PA_SAMPLE_S16NE;
936 spec.rate = 44100;
937 spec.channels = 2;
938
939 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
940 flags, NULL, &spec, NULL);
941 if(!data->stream)
942 {
943 pa_threaded_mainloop_unlock(data->loop);
944 pulse_close(device);
945 return ALC_INVALID_VALUE;
946 }
947
948 data->device_name = strdup(pa_stream_get_device_name(data->stream));
949 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
950 sink_name_callback, device);
951 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
952 pa_threaded_mainloop_wait(data->loop);
953 pa_operation_unref(o);
954
955 pa_threaded_mainloop_unlock(data->loop);
956
957 return ALC_NO_ERROR;
958 } //}}}
959
960 static void pulse_close_playback(ALCdevice *device) //{{{
961 {
962 pulse_close(device);
963 } //}}}
964
965 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
966 {
967 pulse_data *data = device->ExtraData;
968 pa_stream_flags_t flags = 0;
969 pa_channel_map chanmap;
970
971 pa_threaded_mainloop_lock(data->loop);
972
973 if(data->stream)
974 {
975 pa_stream_disconnect(data->stream);
976 pa_stream_unref(data->stream);
977 data->stream = NULL;
978 }
979
980 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
981 {
982 pa_operation *o;
983 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
984 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
985 pa_threaded_mainloop_wait(data->loop);
986 pa_operation_unref(o);
987 }
988 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
989 flags |= PA_STREAM_FIX_RATE;
990
991 flags |= PA_STREAM_EARLY_REQUESTS;
992 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
993 flags |= PA_STREAM_DONT_MOVE;
994
995 switch(device->FmtType)
996 {
997 case DevFmtByte:
998 device->FmtType = DevFmtUByte;
999 /* fall-through */
1000 case DevFmtUByte:
1001 data->spec.format = PA_SAMPLE_U8;
1002 break;
1003 case DevFmtUShort:
1004 device->FmtType = DevFmtShort;
1005 /* fall-through */
1006 case DevFmtShort:
1007 data->spec.format = PA_SAMPLE_S16NE;
1008 break;
1009 case DevFmtUInt:
1010 device->FmtType = DevFmtInt;
1011 /* fall-through */
1012 case DevFmtInt:
1013 data->spec.format = PA_SAMPLE_S32NE;
1014 break;
1015 case DevFmtFloat:
1016 data->spec.format = PA_SAMPLE_FLOAT32NE;
1017 break;
1018 }
1019 data->spec.rate = device->Frequency;
1020 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1021
1022 if(pa_sample_spec_valid(&data->spec) == 0)
1023 {
1024 ERR("Invalid sample format\n");
1025 pa_threaded_mainloop_unlock(data->loop);
1026 return ALC_FALSE;
1027 }
1028
1029 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1030 {
1031 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1032 pa_threaded_mainloop_unlock(data->loop);
1033 return ALC_FALSE;
1034 }
1035 SetDefaultWFXChannelOrder(device);
1036
1037 data->attr.prebuf = -1;
1038 data->attr.fragsize = -1;
1039 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1040 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1041 data->attr.maxlength = -1;
1042
1043 data->stream = connect_playback_stream(data->device_name, data->loop,
1044 data->context, flags, &data->attr,
1045 &data->spec, &chanmap);
1046 if(!data->stream)
1047 {
1048 pa_threaded_mainloop_unlock(data->loop);
1049 return ALC_FALSE;
1050 }
1051
1052 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1053
1054 data->spec = *(pa_stream_get_sample_spec(data->stream));
1055 if(device->Frequency != data->spec.rate)
1056 {
1057 size_t frame_size = pa_frame_size(&data->spec);
1058 pa_operation *o;
1059
1060 /* Server updated our playback rate, so modify the buffer attribs
1061 * accordingly. */
1062 data->attr.minreq = (ALuint64)(data->attr.minreq/frame_size) *
1063 data->spec.rate / device->Frequency * frame_size;
1064 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1065
1066 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1067 stream_success_callback, device);
1068 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1069 pa_threaded_mainloop_wait(data->loop);
1070 pa_operation_unref(o);
1071
1072 device->Frequency = data->spec.rate;
1073 }
1074
1075 #if PA_CHECK_VERSION(0,9,15)
1076 if(pa_stream_set_buffer_attr_callback)
1077 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1078 #endif
1079 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1080 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1081
1082 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1083 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1084 device->NumUpdates = data->attr.tlength / data->attr.minreq;
1085 if(device->NumUpdates <= 1)
1086 {
1087 pa_operation *o;
1088
1089 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1090
1091 /* Server gave a comparatively large minreq, so modify the tlength. */
1092 device->NumUpdates = 2;
1093 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1094
1095 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1096 stream_success_callback, device);
1097 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1098 pa_threaded_mainloop_wait(data->loop);
1099 pa_operation_unref(o);
1100 }
1101
1102 data->thread = StartThread(PulseProc, device);
1103 if(!data->thread)
1104 {
1105 #if PA_CHECK_VERSION(0,9,15)
1106 if(pa_stream_set_buffer_attr_callback)
1107 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1108 #endif
1109 pa_stream_set_write_callback(data->stream, NULL, NULL);
1110 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1111 pa_stream_disconnect(data->stream);
1112 pa_stream_unref(data->stream);
1113 data->stream = NULL;
1114
1115 pa_threaded_mainloop_unlock(data->loop);
1116 return ALC_FALSE;
1117 }
1118
1119 pa_threaded_mainloop_unlock(data->loop);
1120 return ALC_TRUE;
1121 } //}}}
1122
1123 static void pulse_stop_playback(ALCdevice *device) //{{{
1124 {
1125 pulse_data *data = device->ExtraData;
1126
1127 if(!data->stream)
1128 return;
1129
1130 data->killNow = AL_TRUE;
1131 if(data->thread)
1132 {
1133 pa_threaded_mainloop_signal(data->loop, 0);
1134 StopThread(data->thread);
1135 data->thread = NULL;
1136 }
1137 data->killNow = AL_FALSE;
1138
1139 pa_threaded_mainloop_lock(data->loop);
1140
1141 #if PA_CHECK_VERSION(0,9,15)
1142 if(pa_stream_set_buffer_attr_callback)
1143 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1144 #endif
1145 pa_stream_set_write_callback(data->stream, NULL, NULL);
1146 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1147 pa_stream_disconnect(data->stream);
1148 pa_stream_unref(data->stream);
1149 data->stream = NULL;
1150
1151 pa_threaded_mainloop_unlock(data->loop);
1152 } //}}}
1153
1154
1155 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1156 {
1157 const char *pulse_name = NULL;
1158 pa_stream_flags_t flags = 0;
1159 pa_channel_map chanmap;
1160 pulse_data *data;
1161 pa_operation *o;
1162 ALuint samples;
1163
1164 if(device_name)
1165 {
1166 ALuint i;
1167
1168 if(!allCaptureDevNameMap)
1169 probe_devices(AL_TRUE);
1170
1171 for(i = 0;i < numCaptureDevNames;i++)
1172 {
1173 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1174 {
1175 pulse_name = allCaptureDevNameMap[i].device_name;
1176 break;
1177 }
1178 }
1179 if(i == numCaptureDevNames)
1180 return ALC_INVALID_VALUE;
1181 }
1182
1183 if(pulse_open(device) == ALC_FALSE)
1184 return ALC_INVALID_VALUE;
1185
1186 data = device->ExtraData;
1187 pa_threaded_mainloop_lock(data->loop);
1188
1189 data->spec.rate = device->Frequency;
1190 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1191
1192 switch(device->FmtType)
1193 {
1194 case DevFmtUByte:
1195 data->spec.format = PA_SAMPLE_U8;
1196 break;
1197 case DevFmtShort:
1198 data->spec.format = PA_SAMPLE_S16NE;
1199 break;
1200 case DevFmtInt:
1201 data->spec.format = PA_SAMPLE_S32NE;
1202 break;
1203 case DevFmtFloat:
1204 data->spec.format = PA_SAMPLE_FLOAT32NE;
1205 break;
1206 case DevFmtByte:
1207 case DevFmtUShort:
1208 case DevFmtUInt:
1209 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1210 pa_threaded_mainloop_unlock(data->loop);
1211 goto fail;
1212 }
1213
1214 if(pa_sample_spec_valid(&data->spec) == 0)
1215 {
1216 ERR("Invalid sample format\n");
1217 pa_threaded_mainloop_unlock(data->loop);
1218 goto fail;
1219 }
1220
1221 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1222 {
1223 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1224 pa_threaded_mainloop_unlock(data->loop);
1225 goto fail;
1226 }
1227
1228 samples = device->UpdateSize * device->NumUpdates;
1229 samples = maxu(samples, 100 * device->Frequency / 1000);
1230
1231 data->attr.minreq = -1;
1232 data->attr.prebuf = -1;
1233 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1234 data->attr.tlength = -1;
1235 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1236 pa_frame_size(&data->spec);
1237
1238 flags |= PA_STREAM_DONT_MOVE;
1239 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1240 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1241 flags, &data->attr, &data->spec,
1242 &chanmap);
1243 if(!data->stream)
1244 {
1245 pa_threaded_mainloop_unlock(data->loop);
1246 goto fail;
1247 }
1248 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1249
1250 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1251 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1252 source_name_callback, device);
1253 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1254 pa_threaded_mainloop_wait(data->loop);
1255 pa_operation_unref(o);
1256
1257 pa_threaded_mainloop_unlock(data->loop);
1258 return ALC_NO_ERROR;
1259
1260 fail:
1261 pulse_close(device);
1262 return ALC_INVALID_VALUE;
1263 } //}}}
1264
1265 static void pulse_close_capture(ALCdevice *device) //{{{
1266 {
1267 pulse_close(device);
1268 } //}}}
1269
1270 static void pulse_start_capture(ALCdevice *device) //{{{
1271 {
1272 pulse_data *data = device->ExtraData;
1273 pa_operation *o;
1274
1275 pa_threaded_mainloop_lock(data->loop);
1276 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1277 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1278 pa_threaded_mainloop_wait(data->loop);
1279 pa_operation_unref(o);
1280 pa_threaded_mainloop_unlock(data->loop);
1281 } //}}}
1282
1283 static void pulse_stop_capture(ALCdevice *device) //{{{
1284 {
1285 pulse_data *data = device->ExtraData;
1286 pa_operation *o;
1287
1288 pa_threaded_mainloop_lock(data->loop);
1289 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1290 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1291 pa_threaded_mainloop_wait(data->loop);
1292 pa_operation_unref(o);
1293 pa_threaded_mainloop_unlock(data->loop);
1294 } //}}}
1295
1296 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1297 {
1298 pulse_data *data = device->ExtraData;
1299 ALCuint todo = samples * pa_frame_size(&data->spec);
1300
1301 pa_threaded_mainloop_lock(data->loop);
1302 /* Capture is done in fragment-sized chunks, so we loop until we get all
1303 * that's available */
1304 data->last_readable -= todo;
1305 while(todo > 0)
1306 {
1307 size_t rem = todo;
1308
1309 if(data->cap_len == 0)
1310 {
1311 pa_stream_state_t state;
1312
1313 state = pa_stream_get_state(data->stream);
1314 if(!PA_STREAM_IS_GOOD(state))
1315 {
1316 aluHandleDisconnect(device);
1317 break;
1318 }
1319 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1320 {
1321 ERR("pa_stream_peek() failed: %s\n",
1322 pa_strerror(pa_context_errno(data->context)));
1323 aluHandleDisconnect(device);
1324 break;
1325 }
1326 data->cap_remain = data->cap_len;
1327 }
1328 if(rem > data->cap_remain)
1329 rem = data->cap_remain;
1330
1331 memcpy(buffer, data->cap_store, rem);
1332
1333 buffer = (ALbyte*)buffer + rem;
1334 todo -= rem;
1335
1336 data->cap_store = (ALbyte*)data->cap_store + rem;
1337 data->cap_remain -= rem;
1338 if(data->cap_remain == 0)
1339 {
1340 pa_stream_drop(data->stream);
1341 data->cap_len = 0;
1342 }
1343 }
1344 if(todo > 0)
1345 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1346 pa_threaded_mainloop_unlock(data->loop);
1347
1348 return ALC_NO_ERROR;
1349 } //}}}
1350
1351 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1352 {
1353 pulse_data *data = device->ExtraData;
1354 size_t readable = data->cap_remain;
1355
1356 pa_threaded_mainloop_lock(data->loop);
1357 if(device->Connected)
1358 {
1359 ssize_t got = pa_stream_readable_size(data->stream);
1360 if(got > 0 && (size_t)got > data->cap_len)
1361 readable += got - data->cap_len;
1362 }
1363 pa_threaded_mainloop_unlock(data->loop);
1364
1365 if(data->last_readable < readable)
1366 data->last_readable = readable;
1367 return data->last_readable / pa_frame_size(&data->spec);
1368 } //}}}
1369
1370
1371 static const BackendFuncs pulse_funcs = { //{{{
1372 pulse_open_playback,
1373 pulse_close_playback,
1374 pulse_reset_playback,
1375 pulse_stop_playback,
1376 pulse_open_capture,
1377 pulse_close_capture,
1378 pulse_start_capture,
1379 pulse_stop_capture,
1380 pulse_capture_samples,
1381 pulse_available_samples
1382 }; //}}}
1383
1384 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1385 {
1386 ALCboolean ret = ALC_FALSE;
1387
1388 if(pulse_load())
1389 {
1390 pa_threaded_mainloop *loop;
1391
1392 pulse_ctx_flags = 0;
1393 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1394 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1395
1396 if((loop=pa_threaded_mainloop_new()) &&
1397 pa_threaded_mainloop_start(loop) >= 0)
1398 {
1399 pa_context *context;
1400
1401 pa_threaded_mainloop_lock(loop);
1402 context = connect_context(loop, AL_TRUE);
1403 if(context)
1404 {
1405 ret = ALC_TRUE;
1406
1407 pa_context_disconnect(context);
1408 pa_context_unref(context);
1409 }
1410 pa_threaded_mainloop_unlock(loop);
1411 pa_threaded_mainloop_stop(loop);
1412 }
1413 if(loop)
1414 pa_threaded_mainloop_free(loop);
1415 }
1416
1417 if(ret != ALC_FALSE)
1418 *func_list = pulse_funcs;
1419 return ret;
1420 } //}}}
1421
1422 void alc_pulse_deinit(void) //{{{
1423 {
1424 ALuint i;
1425
1426 for(i = 0;i < numDevNames;++i)
1427 {
1428 free(allDevNameMap[i].name);
1429 free(allDevNameMap[i].device_name);
1430 }
1431 free(allDevNameMap);
1432 allDevNameMap = NULL;
1433 numDevNames = 0;
1434
1435 for(i = 0;i < numCaptureDevNames;++i)
1436 {
1437 free(allCaptureDevNameMap[i].name);
1438 free(allCaptureDevNameMap[i].device_name);
1439 }
1440 free(allCaptureDevNameMap);
1441 allCaptureDevNameMap = NULL;
1442 numCaptureDevNames = 0;
1443
1444 #ifdef HAVE_DYNLOAD
1445 if(pa_handle)
1446 CloseLib(pa_handle);
1447 pa_handle = NULL;
1448 #endif
1449 } //}}}
1450
1451 void alc_pulse_probe(enum DevProbe type) //{{{
1452 {
1453 ALuint i;
1454
1455 switch(type)
1456 {
1457 case ALL_DEVICE_PROBE:
1458 for(i = 0;i < numDevNames;++i)
1459 {
1460 free(allDevNameMap[i].name);
1461 free(allDevNameMap[i].device_name);
1462 }
1463 free(allDevNameMap);
1464 allDevNameMap = NULL;
1465 numDevNames = 0;
1466
1467 probe_devices(AL_FALSE);
1468
1469 for(i = 0;i < numDevNames;i++)
1470 AppendAllDeviceList(allDevNameMap[i].name);
1471 break;
1472
1473 case CAPTURE_DEVICE_PROBE:
1474 for(i = 0;i < numCaptureDevNames;++i)
1475 {
1476 free(allCaptureDevNameMap[i].name);
1477 free(allCaptureDevNameMap[i].device_name);
1478 }
1479 free(allCaptureDevNameMap);
1480 allCaptureDevNameMap = NULL;
1481 numCaptureDevNames = 0;
1482
1483 probe_devices(AL_TRUE);
1484
1485 for(i = 0;i < numCaptureDevNames;i++)
1486 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1487 break;
1488 }
1489 } //}}}
1490 //}}}
1491
1492 #else
1493
1494 #warning "Unsupported API version, backend will be unavailable!"
1495
1496 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1497 { return ALC_FALSE; (void)func_list; }
1498
1499 void alc_pulse_deinit(void)
1500 { }
1501
1502 void alc_pulse_probe(enum DevProbe type)
1503 { (void)type; }
1504
1505 #endif
Software OpenAL implementation