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Hold the device lock with PulseAudio between mixing and writing
[openal-soft.git] / Alc / backends / pulseaudio.c
blob059f841a9c93f9a839536bb008cb7b587fdf543c
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 <string.h>
25 #include "alMain.h"
26
27 #include <pulse/pulseaudio.h>
28
29 #if PA_API_VERSION == 12
30
31 #ifndef PA_CHECK_VERSION
32 #define PA_CHECK_VERSION(major,minor,micro) \
33 ((PA_MAJOR > (major)) || \
34 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
35 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
36 #endif
37
38 #ifdef HAVE_DYNLOAD
39 static void *pa_handle;
40 #define MAKE_FUNC(x) static typeof(x) * p##x
41 MAKE_FUNC(pa_context_unref);
42 MAKE_FUNC(pa_sample_spec_valid);
43 MAKE_FUNC(pa_frame_size);
44 MAKE_FUNC(pa_stream_drop);
45 MAKE_FUNC(pa_strerror);
46 MAKE_FUNC(pa_context_get_state);
47 MAKE_FUNC(pa_stream_get_state);
48 MAKE_FUNC(pa_threaded_mainloop_signal);
49 MAKE_FUNC(pa_stream_peek);
50 MAKE_FUNC(pa_threaded_mainloop_wait);
51 MAKE_FUNC(pa_threaded_mainloop_unlock);
52 MAKE_FUNC(pa_threaded_mainloop_in_thread);
53 MAKE_FUNC(pa_context_new);
54 MAKE_FUNC(pa_threaded_mainloop_stop);
55 MAKE_FUNC(pa_context_disconnect);
56 MAKE_FUNC(pa_threaded_mainloop_start);
57 MAKE_FUNC(pa_threaded_mainloop_get_api);
58 MAKE_FUNC(pa_context_set_state_callback);
59 MAKE_FUNC(pa_stream_write);
60 MAKE_FUNC(pa_xfree);
61 MAKE_FUNC(pa_stream_connect_record);
62 MAKE_FUNC(pa_stream_connect_playback);
63 MAKE_FUNC(pa_stream_readable_size);
64 MAKE_FUNC(pa_stream_writable_size);
65 MAKE_FUNC(pa_stream_is_corked);
66 MAKE_FUNC(pa_stream_cork);
67 MAKE_FUNC(pa_stream_is_suspended);
68 MAKE_FUNC(pa_stream_get_device_name);
69 MAKE_FUNC(pa_stream_get_latency);
70 MAKE_FUNC(pa_path_get_filename);
71 MAKE_FUNC(pa_get_binary_name);
72 MAKE_FUNC(pa_threaded_mainloop_free);
73 MAKE_FUNC(pa_context_errno);
74 MAKE_FUNC(pa_xmalloc);
75 MAKE_FUNC(pa_stream_unref);
76 MAKE_FUNC(pa_threaded_mainloop_accept);
77 MAKE_FUNC(pa_stream_set_write_callback);
78 MAKE_FUNC(pa_threaded_mainloop_new);
79 MAKE_FUNC(pa_context_connect);
80 MAKE_FUNC(pa_stream_set_buffer_attr);
81 MAKE_FUNC(pa_stream_get_buffer_attr);
82 MAKE_FUNC(pa_stream_get_sample_spec);
83 MAKE_FUNC(pa_stream_get_time);
84 MAKE_FUNC(pa_stream_set_read_callback);
85 MAKE_FUNC(pa_stream_set_state_callback);
86 MAKE_FUNC(pa_stream_set_moved_callback);
87 MAKE_FUNC(pa_stream_set_underflow_callback);
88 MAKE_FUNC(pa_stream_new_with_proplist);
89 MAKE_FUNC(pa_stream_disconnect);
90 MAKE_FUNC(pa_threaded_mainloop_lock);
91 MAKE_FUNC(pa_channel_map_init_auto);
92 MAKE_FUNC(pa_channel_map_parse);
93 MAKE_FUNC(pa_channel_map_snprint);
94 MAKE_FUNC(pa_channel_map_equal);
95 MAKE_FUNC(pa_context_get_server_info);
96 MAKE_FUNC(pa_context_get_sink_info_by_name);
97 MAKE_FUNC(pa_context_get_sink_info_list);
98 MAKE_FUNC(pa_context_get_source_info_by_name);
99 MAKE_FUNC(pa_context_get_source_info_list);
100 MAKE_FUNC(pa_operation_get_state);
101 MAKE_FUNC(pa_operation_unref);
102 MAKE_FUNC(pa_proplist_new);
103 MAKE_FUNC(pa_proplist_free);
104 MAKE_FUNC(pa_proplist_set);
105 #if PA_CHECK_VERSION(0,9,15)
106 MAKE_FUNC(pa_channel_map_superset);
107 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
108 #endif
109 #if PA_CHECK_VERSION(0,9,16)
110 MAKE_FUNC(pa_stream_begin_write);
111 #endif
112 #undef MAKE_FUNC
113
114 #define pa_context_unref ppa_context_unref
115 #define pa_sample_spec_valid ppa_sample_spec_valid
116 #define pa_frame_size ppa_frame_size
117 #define pa_stream_drop ppa_stream_drop
118 #define pa_strerror ppa_strerror
119 #define pa_context_get_state ppa_context_get_state
120 #define pa_stream_get_state ppa_stream_get_state
121 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
122 #define pa_stream_peek ppa_stream_peek
123 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
124 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
125 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
126 #define pa_context_new ppa_context_new
127 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
128 #define pa_context_disconnect ppa_context_disconnect
129 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
130 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
131 #define pa_context_set_state_callback ppa_context_set_state_callback
132 #define pa_stream_write ppa_stream_write
133 #define pa_xfree ppa_xfree
134 #define pa_stream_connect_record ppa_stream_connect_record
135 #define pa_stream_connect_playback ppa_stream_connect_playback
136 #define pa_stream_readable_size ppa_stream_readable_size
137 #define pa_stream_writable_size ppa_stream_writable_size
138 #define pa_stream_is_corked ppa_stream_is_corked
139 #define pa_stream_cork ppa_stream_cork
140 #define pa_stream_is_suspended ppa_stream_is_suspended
141 #define pa_stream_get_device_name ppa_stream_get_device_name
142 #define pa_stream_get_latency ppa_stream_get_latency
143 #define pa_path_get_filename ppa_path_get_filename
144 #define pa_get_binary_name ppa_get_binary_name
145 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
146 #define pa_context_errno ppa_context_errno
147 #define pa_xmalloc ppa_xmalloc
148 #define pa_stream_unref ppa_stream_unref
149 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
150 #define pa_stream_set_write_callback ppa_stream_set_write_callback
151 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
152 #define pa_context_connect ppa_context_connect
153 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
154 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
155 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
156 #define pa_stream_get_time ppa_stream_get_time
157 #define pa_stream_set_read_callback ppa_stream_set_read_callback
158 #define pa_stream_set_state_callback ppa_stream_set_state_callback
159 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
160 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
161 #define pa_stream_new_with_proplist ppa_stream_new_with_proplist
162 #define pa_stream_disconnect ppa_stream_disconnect
163 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
164 #define pa_channel_map_init_auto ppa_channel_map_init_auto
165 #define pa_channel_map_parse ppa_channel_map_parse
166 #define pa_channel_map_snprint ppa_channel_map_snprint
167 #define pa_channel_map_equal ppa_channel_map_equal
168 #define pa_context_get_server_info ppa_context_get_server_info
169 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
170 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
171 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
172 #define pa_context_get_source_info_list ppa_context_get_source_info_list
173 #define pa_operation_get_state ppa_operation_get_state
174 #define pa_operation_unref ppa_operation_unref
175 #define pa_proplist_new ppa_proplist_new
176 #define pa_proplist_free ppa_proplist_free
177 #define pa_proplist_set ppa_proplist_set
178 #if PA_CHECK_VERSION(0,9,15)
179 #define pa_channel_map_superset ppa_channel_map_superset
180 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
181 #endif
182 #if PA_CHECK_VERSION(0,9,16)
183 #define pa_stream_begin_write ppa_stream_begin_write
184 #endif
185
186 #endif
187
188 #ifndef PATH_MAX
189 #define PATH_MAX 4096
190 #endif
191
192 typedef struct {
193 char *device_name;
194
195 const void *cap_store;
196 size_t cap_len;
197 size_t cap_remain;
198
199 ALCuint last_readable;
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 DevMap *allDevNameMap;
220 static ALuint numDevNames;
221 static DevMap *allCaptureDevNameMap;
222 static ALuint numCaptureDevNames;
223 static pa_context_flags_t pulse_ctx_flags;
224 static pa_proplist *prop_filter;
225
226
227 static ALCboolean pulse_load(void)
228 {
229 ALCboolean ret = ALC_TRUE;
230 #ifdef HAVE_DYNLOAD
231 if(!pa_handle)
232 {
233 #ifdef _WIN32
234 #define PALIB "libpulse-0.dll"
235 #elif defined(__APPLE__) && defined(__MACH__)
236 #define PALIB "libpulse.0.dylib"
237 #else
238 #define PALIB "libpulse.so.0"
239 #endif
240 pa_handle = LoadLib(PALIB);
241 if(!pa_handle)
242 return ALC_FALSE;
243
244 #define LOAD_FUNC(x) do { \
245 p##x = GetSymbol(pa_handle, #x); \
246 if(!(p##x)) { \
247 ret = ALC_FALSE; \
248 } \
249 } while(0)
250 LOAD_FUNC(pa_context_unref);
251 LOAD_FUNC(pa_sample_spec_valid);
252 LOAD_FUNC(pa_stream_drop);
253 LOAD_FUNC(pa_frame_size);
254 LOAD_FUNC(pa_strerror);
255 LOAD_FUNC(pa_context_get_state);
256 LOAD_FUNC(pa_stream_get_state);
257 LOAD_FUNC(pa_threaded_mainloop_signal);
258 LOAD_FUNC(pa_stream_peek);
259 LOAD_FUNC(pa_threaded_mainloop_wait);
260 LOAD_FUNC(pa_threaded_mainloop_unlock);
261 LOAD_FUNC(pa_threaded_mainloop_in_thread);
262 LOAD_FUNC(pa_context_new);
263 LOAD_FUNC(pa_threaded_mainloop_stop);
264 LOAD_FUNC(pa_context_disconnect);
265 LOAD_FUNC(pa_threaded_mainloop_start);
266 LOAD_FUNC(pa_threaded_mainloop_get_api);
267 LOAD_FUNC(pa_context_set_state_callback);
268 LOAD_FUNC(pa_stream_write);
269 LOAD_FUNC(pa_xfree);
270 LOAD_FUNC(pa_stream_connect_record);
271 LOAD_FUNC(pa_stream_connect_playback);
272 LOAD_FUNC(pa_stream_readable_size);
273 LOAD_FUNC(pa_stream_writable_size);
274 LOAD_FUNC(pa_stream_is_corked);
275 LOAD_FUNC(pa_stream_cork);
276 LOAD_FUNC(pa_stream_is_suspended);
277 LOAD_FUNC(pa_stream_get_device_name);
278 LOAD_FUNC(pa_stream_get_latency);
279 LOAD_FUNC(pa_path_get_filename);
280 LOAD_FUNC(pa_get_binary_name);
281 LOAD_FUNC(pa_threaded_mainloop_free);
282 LOAD_FUNC(pa_context_errno);
283 LOAD_FUNC(pa_xmalloc);
284 LOAD_FUNC(pa_stream_unref);
285 LOAD_FUNC(pa_threaded_mainloop_accept);
286 LOAD_FUNC(pa_stream_set_write_callback);
287 LOAD_FUNC(pa_threaded_mainloop_new);
288 LOAD_FUNC(pa_context_connect);
289 LOAD_FUNC(pa_stream_set_buffer_attr);
290 LOAD_FUNC(pa_stream_get_buffer_attr);
291 LOAD_FUNC(pa_stream_get_sample_spec);
292 LOAD_FUNC(pa_stream_get_time);
293 LOAD_FUNC(pa_stream_set_read_callback);
294 LOAD_FUNC(pa_stream_set_state_callback);
295 LOAD_FUNC(pa_stream_set_moved_callback);
296 LOAD_FUNC(pa_stream_set_underflow_callback);
297 LOAD_FUNC(pa_stream_new_with_proplist);
298 LOAD_FUNC(pa_stream_disconnect);
299 LOAD_FUNC(pa_threaded_mainloop_lock);
300 LOAD_FUNC(pa_channel_map_init_auto);
301 LOAD_FUNC(pa_channel_map_parse);
302 LOAD_FUNC(pa_channel_map_snprint);
303 LOAD_FUNC(pa_channel_map_equal);
304 LOAD_FUNC(pa_context_get_server_info);
305 LOAD_FUNC(pa_context_get_sink_info_by_name);
306 LOAD_FUNC(pa_context_get_sink_info_list);
307 LOAD_FUNC(pa_context_get_source_info_by_name);
308 LOAD_FUNC(pa_context_get_source_info_list);
309 LOAD_FUNC(pa_operation_get_state);
310 LOAD_FUNC(pa_operation_unref);
311 LOAD_FUNC(pa_proplist_new);
312 LOAD_FUNC(pa_proplist_free);
313 LOAD_FUNC(pa_proplist_set);
314 #undef LOAD_FUNC
315 #define LOAD_OPTIONAL_FUNC(x) do { \
316 p##x = GetSymbol(pa_handle, #x); \
317 } while(0)
318 #if PA_CHECK_VERSION(0,9,15)
319 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
320 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
321 #endif
322 #if PA_CHECK_VERSION(0,9,16)
323 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
324 #endif
325 #undef LOAD_OPTIONAL_FUNC
326
327 if(ret == ALC_FALSE)
328 {
329 CloseLib(pa_handle);
330 pa_handle = NULL;
331 }
332 }
333 #endif /* HAVE_DYNLOAD */
334 return ret;
335 }
336
337 /* PulseAudio Event Callbacks */
338 static void context_state_callback(pa_context *context, void *pdata)
339 {
340 pa_threaded_mainloop *loop = pdata;
341 pa_context_state_t state;
342
343 state = pa_context_get_state(context);
344 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
345 pa_threaded_mainloop_signal(loop, 0);
346 }
347
348 static void stream_state_callback(pa_stream *stream, void *pdata)
349 {
350 pa_threaded_mainloop *loop = pdata;
351 pa_stream_state_t state;
352
353 state = pa_stream_get_state(stream);
354 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
355 pa_threaded_mainloop_signal(loop, 0);
356 }
357
358 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata)
359 {
360 ALCdevice *device = pdata;
361 pulse_data *data = device->ExtraData;
362
363 data->attr = *pa_stream_get_buffer_attr(stream);
364 TRACE("minreq=%d, tlength=%d, prebuf=%d\n", data->attr.minreq, data->attr.tlength, data->attr.prebuf);
365 }
366
367 static void context_state_callback2(pa_context *context, void *pdata)
368 {
369 ALCdevice *Device = pdata;
370 pulse_data *data = Device->ExtraData;
371
372 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
373 {
374 ERR("Received context failure!\n");
375 aluHandleDisconnect(Device);
376 }
377 pa_threaded_mainloop_signal(data->loop, 0);
378 }
379
380 static void stream_state_callback2(pa_stream *stream, void *pdata)
381 {
382 ALCdevice *Device = pdata;
383 pulse_data *data = Device->ExtraData;
384
385 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
386 {
387 ERR("Received stream failure!\n");
388 aluHandleDisconnect(Device);
389 }
390 pa_threaded_mainloop_signal(data->loop, 0);
391 }
392
393 static void stream_success_callback(pa_stream *stream, int success, void *pdata)
394 {
395 ALCdevice *Device = pdata;
396 pulse_data *data = Device->ExtraData;
397 (void)stream;
398 (void)success;
399
400 pa_threaded_mainloop_signal(data->loop, 0);
401 }
402
403 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
404 {
405 ALCdevice *device = pdata;
406 pulse_data *data = device->ExtraData;
407 char chanmap_str[256] = "";
408 const struct {
409 const char *str;
410 enum DevFmtChannels chans;
411 } chanmaps[] = {
412 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
413 DevFmtX71 },
414 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
415 DevFmtX61 },
416 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
417 DevFmtX51 },
418 { "front-left,front-right,front-center,lfe,side-left,side-right",
419 DevFmtX51Side },
420 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
421 { "front-left,front-right", DevFmtStereo },
422 { "mono", DevFmtMono },
423 { NULL, 0 }
424 };
425 int i;
426 (void)context;
427
428 if(eol)
429 {
430 pa_threaded_mainloop_signal(data->loop, 0);
431 return;
432 }
433
434 for(i = 0;chanmaps[i].str;i++)
435 {
436 pa_channel_map map;
437 if(!pa_channel_map_parse(&map, chanmaps[i].str))
438 continue;
439
440 if(pa_channel_map_equal(&info->channel_map, &map)
441 #if PA_CHECK_VERSION(0,9,15)
442 || (pa_channel_map_superset &&
443 pa_channel_map_superset(&info->channel_map, &map))
444 #endif
445 )
446 {
447 device->FmtChans = chanmaps[i].chans;
448 return;
449 }
450 }
451
452 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
453 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
454 }
455
456 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
457 {
458 pa_threaded_mainloop *loop = pdata;
459 void *temp;
460 ALuint i;
461
462 (void)context;
463
464 if(eol)
465 {
466 pa_threaded_mainloop_signal(loop, 0);
467 return;
468 }
469
470 for(i = 0;i < numDevNames;i++)
471 {
472 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
473 return;
474 }
475
476 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
477
478 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
479 if(temp)
480 {
481 allDevNameMap = temp;
482 allDevNameMap[numDevNames].name = strdup(info->description);
483 allDevNameMap[numDevNames].device_name = strdup(info->name);
484 numDevNames++;
485 }
486 }
487
488 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
489 {
490 pa_threaded_mainloop *loop = pdata;
491 void *temp;
492 ALuint i;
493
494 (void)context;
495
496 if(eol)
497 {
498 pa_threaded_mainloop_signal(loop, 0);
499 return;
500 }
501
502 for(i = 0;i < numCaptureDevNames;i++)
503 {
504 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
505 return;
506 }
507
508 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
509
510 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
511 if(temp)
512 {
513 allCaptureDevNameMap = temp;
514 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
515 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
516 numCaptureDevNames++;
517 }
518 }
519
520 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
521 {
522 ALCdevice *device = pdata;
523 pulse_data *data = device->ExtraData;
524 (void)context;
525
526 if(eol)
527 {
528 pa_threaded_mainloop_signal(data->loop, 0);
529 return;
530 }
531
532 free(device->DeviceName);
533 device->DeviceName = strdup(info->description);
534 }
535
536 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
537 {
538 ALCdevice *device = pdata;
539 pulse_data *data = device->ExtraData;
540 (void)context;
541
542 if(eol)
543 {
544 pa_threaded_mainloop_signal(data->loop, 0);
545 return;
546 }
547
548 free(device->DeviceName);
549 device->DeviceName = strdup(info->description);
550 }
551
552
553 static void stream_moved_callback(pa_stream *stream, void *pdata)
554 {
555 ALCdevice *device = pdata;
556 pulse_data *data = device->ExtraData;
557 (void)stream;
558
559 free(data->device_name);
560 data->device_name = strdup(pa_stream_get_device_name(data->stream));
561
562 TRACE("Stream moved to %s\n", data->device_name);
563 }
564
565
566 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
567 {
568 const char *name = "OpenAL Soft";
569 char path_name[PATH_MAX];
570 pa_context_state_t state;
571 pa_context *context;
572 int err;
573
574 if(pa_get_binary_name(path_name, sizeof(path_name)))
575 name = pa_path_get_filename(path_name);
576
577 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
578 if(!context)
579 {
580 ERR("pa_context_new() failed\n");
581 return NULL;
582 }
583
584 pa_context_set_state_callback(context, context_state_callback, loop);
585
586 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
587 {
588 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
589 {
590 if(!PA_CONTEXT_IS_GOOD(state))
591 {
592 err = pa_context_errno(context);
593 if(err > 0) err = -err;
594 break;
595 }
596
597 pa_threaded_mainloop_wait(loop);
598 }
599 }
600 pa_context_set_state_callback(context, NULL, NULL);
601
602 if(err < 0)
603 {
604 if(!silent)
605 ERR("Context did not connect: %s\n", pa_strerror(err));
606 pa_context_unref(context);
607 return NULL;
608 }
609
610 return context;
611 }
612
613 static pa_stream *connect_playback_stream(const char *device_name,
614 pa_threaded_mainloop *loop, pa_context *context,
615 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
616 pa_channel_map *chanmap)
617 {
618 pa_stream_state_t state;
619 pa_stream *stream;
620
621 stream = pa_stream_new_with_proplist(context, "Playback Stream", spec, chanmap, prop_filter);
622 if(!stream)
623 {
624 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
625 return NULL;
626 }
627
628 pa_stream_set_state_callback(stream, stream_state_callback, loop);
629
630 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
631 {
632 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
633 pa_stream_unref(stream);
634 return NULL;
635 }
636
637 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
638 {
639 if(!PA_STREAM_IS_GOOD(state))
640 {
641 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
642 pa_stream_unref(stream);
643 return NULL;
644 }
645
646 pa_threaded_mainloop_wait(loop);
647 }
648 pa_stream_set_state_callback(stream, NULL, NULL);
649
650 return stream;
651 }
652
653 static pa_stream *connect_record_stream(const char *device_name,
654 pa_threaded_mainloop *loop, pa_context *context,
655 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
656 pa_channel_map *chanmap)
657 {
658 pa_stream_state_t state;
659 pa_stream *stream;
660
661 stream = pa_stream_new_with_proplist(context, "Capture Stream", spec, chanmap, prop_filter);
662 if(!stream)
663 {
664 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
665 return NULL;
666 }
667
668 pa_stream_set_state_callback(stream, stream_state_callback, loop);
669
670 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
671 {
672 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
673 pa_stream_unref(stream);
674 return NULL;
675 }
676
677 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
678 {
679 if(!PA_STREAM_IS_GOOD(state))
680 {
681 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
682 pa_stream_unref(stream);
683 return NULL;
684 }
685
686 pa_threaded_mainloop_wait(loop);
687 }
688 pa_stream_set_state_callback(stream, NULL, NULL);
689
690 return stream;
691 }
692
693
694 static void wait_for_operation(pa_operation *op, pa_threaded_mainloop *loop)
695 {
696 if(op)
697 {
698 while(pa_operation_get_state(op) == PA_OPERATION_RUNNING)
699 pa_threaded_mainloop_wait(loop);
700 pa_operation_unref(op);
701 }
702 }
703
704
705 static void probe_devices(ALboolean capture)
706 {
707 pa_threaded_mainloop *loop;
708
709 if(capture == AL_FALSE)
710 allDevNameMap = malloc(sizeof(DevMap) * 1);
711 else
712 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
713
714 if((loop=pa_threaded_mainloop_new()) &&
715 pa_threaded_mainloop_start(loop) >= 0)
716 {
717 pa_context *context;
718
719 pa_threaded_mainloop_lock(loop);
720 context = connect_context(loop, AL_FALSE);
721 if(context)
722 {
723 pa_operation *o;
724
725 if(capture == AL_FALSE)
726 {
727 pa_stream_flags_t flags;
728 pa_sample_spec spec;
729 pa_stream *stream;
730
731 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
732 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
733
734 spec.format = PA_SAMPLE_S16NE;
735 spec.rate = 44100;
736 spec.channels = 2;
737
738 stream = connect_playback_stream(NULL, loop, context, flags,
739 NULL, &spec, NULL);
740 if(stream)
741 {
742 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
743 wait_for_operation(o, loop);
744
745 pa_stream_disconnect(stream);
746 pa_stream_unref(stream);
747 stream = NULL;
748 }
749
750 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
751 }
752 else
753 {
754 pa_stream_flags_t flags;
755 pa_sample_spec spec;
756 pa_stream *stream;
757
758 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
759 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
760
761 spec.format = PA_SAMPLE_S16NE;
762 spec.rate = 44100;
763 spec.channels = 1;
764
765 stream = connect_record_stream(NULL, loop, context, flags,
766 NULL, &spec, NULL);
767 if(stream)
768 {
769 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
770 wait_for_operation(o, loop);
771
772 pa_stream_disconnect(stream);
773 pa_stream_unref(stream);
774 stream = NULL;
775 }
776
777 o = pa_context_get_source_info_list(context, source_device_callback, loop);
778 }
779 wait_for_operation(o, loop);
780
781 pa_context_disconnect(context);
782 pa_context_unref(context);
783 }
784 pa_threaded_mainloop_unlock(loop);
785 pa_threaded_mainloop_stop(loop);
786 }
787 if(loop)
788 pa_threaded_mainloop_free(loop);
789 }
790
791
792 static ALuint PulseProc(ALvoid *param)
793 {
794 ALCdevice *Device = param;
795 pulse_data *data = Device->ExtraData;
796 ALuint buffer_size;
797 ALint update_size;
798 size_t frame_size;
799 ssize_t len;
800
801 SetRTPriority();
802
803 pa_threaded_mainloop_lock(data->loop);
804 frame_size = pa_frame_size(&data->spec);
805 update_size = Device->UpdateSize * frame_size;
806
807 /* Sanitize buffer metrics, in case we actually have less than what we
808 * asked for. */
809 buffer_size = minu(update_size*Device->NumUpdates, data->attr.tlength);
810 update_size = minu(update_size, buffer_size/2);
811 do {
812 len = pa_stream_writable_size(data->stream) - data->attr.tlength +
813 buffer_size;
814 if(len < update_size)
815 {
816 if(pa_stream_is_corked(data->stream) == 1)
817 {
818 pa_operation *o;
819 o = pa_stream_cork(data->stream, 0, NULL, NULL);
820 if(o) pa_operation_unref(o);
821 }
822 pa_threaded_mainloop_unlock(data->loop);
823 Sleep(1);
824 pa_threaded_mainloop_lock(data->loop);
825 continue;
826 }
827 len -= len%update_size;
828
829 ALCdevice_Lock(Device);
830 while(len > 0)
831 {
832 size_t newlen = len;
833 void *buf;
834 pa_free_cb_t free_func = NULL;
835
836 #if PA_CHECK_VERSION(0,9,16)
837 if(!pa_stream_begin_write ||
838 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
839 #endif
840 {
841 buf = pa_xmalloc(newlen);
842 free_func = pa_xfree;
843 }
844
845 aluMixData(Device, buf, newlen/frame_size);
846
847 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
848 len -= newlen;
849 }
850 ALCdevice_Unlock(Device);
851 } while(!data->killNow && Device->Connected);
852 pa_threaded_mainloop_unlock(data->loop);
853
854 return 0;
855 }
856
857
858 static ALCboolean pulse_open(ALCdevice *device)
859 {
860 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
861 memset(data, 0, sizeof(*data));
862
863 if(!(data->loop = pa_threaded_mainloop_new()))
864 {
865 ERR("pa_threaded_mainloop_new() failed!\n");
866 goto out;
867 }
868 if(pa_threaded_mainloop_start(data->loop) < 0)
869 {
870 ERR("pa_threaded_mainloop_start() failed\n");
871 goto out;
872 }
873
874 pa_threaded_mainloop_lock(data->loop);
875 device->ExtraData = data;
876
877 data->context = connect_context(data->loop, AL_FALSE);
878 if(!data->context)
879 {
880 pa_threaded_mainloop_unlock(data->loop);
881 goto out;
882 }
883 pa_context_set_state_callback(data->context, context_state_callback2, device);
884
885 pa_threaded_mainloop_unlock(data->loop);
886 return ALC_TRUE;
887
888 out:
889 if(data->loop)
890 {
891 pa_threaded_mainloop_stop(data->loop);
892 pa_threaded_mainloop_free(data->loop);
893 }
894
895 device->ExtraData = NULL;
896 pa_xfree(data);
897 return ALC_FALSE;
898 }
899
900 static void pulse_close(ALCdevice *device)
901 {
902 pulse_data *data = device->ExtraData;
903
904 pa_threaded_mainloop_lock(data->loop);
905
906 if(data->stream)
907 {
908 pa_stream_set_moved_callback(data->stream, NULL, NULL);
909 #if PA_CHECK_VERSION(0,9,15)
910 if(pa_stream_set_buffer_attr_callback)
911 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
912 #endif
913 pa_stream_disconnect(data->stream);
914 pa_stream_unref(data->stream);
915 }
916
917 pa_context_disconnect(data->context);
918 pa_context_unref(data->context);
919
920 pa_threaded_mainloop_unlock(data->loop);
921
922 pa_threaded_mainloop_stop(data->loop);
923 pa_threaded_mainloop_free(data->loop);
924
925 free(data->device_name);
926
927 device->ExtraData = NULL;
928 pa_xfree(data);
929 }
930
931 /* OpenAL */
932 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name)
933 {
934 const char *pulse_name = NULL;
935 pa_stream_flags_t flags;
936 pa_sample_spec spec;
937 pulse_data *data;
938 pa_operation *o;
939
940 if(device_name)
941 {
942 ALuint i;
943
944 if(!allDevNameMap)
945 probe_devices(AL_FALSE);
946
947 for(i = 0;i < numDevNames;i++)
948 {
949 if(strcmp(device_name, allDevNameMap[i].name) == 0)
950 {
951 pulse_name = allDevNameMap[i].device_name;
952 break;
953 }
954 }
955 if(i == numDevNames)
956 return ALC_INVALID_VALUE;
957 }
958
959 if(pulse_open(device) == ALC_FALSE)
960 return ALC_INVALID_VALUE;
961
962 data = device->ExtraData;
963 pa_threaded_mainloop_lock(data->loop);
964
965 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
966 PA_STREAM_FIX_CHANNELS;
967 if(!GetConfigValueBool("pulse", "allow-moves", 0))
968 flags |= PA_STREAM_DONT_MOVE;
969
970 spec.format = PA_SAMPLE_S16NE;
971 spec.rate = 44100;
972 spec.channels = 2;
973
974 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
975 flags, NULL, &spec, NULL);
976 if(!data->stream)
977 {
978 pa_threaded_mainloop_unlock(data->loop);
979 pulse_close(device);
980 return ALC_INVALID_VALUE;
981 }
982
983 data->device_name = strdup(pa_stream_get_device_name(data->stream));
984 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
985 sink_name_callback, device);
986 wait_for_operation(o, data->loop);
987
988 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
989
990 pa_threaded_mainloop_unlock(data->loop);
991
992 return ALC_NO_ERROR;
993 }
994
995 static void pulse_close_playback(ALCdevice *device)
996 {
997 pulse_close(device);
998 }
999
1000 static ALCboolean pulse_reset_playback(ALCdevice *device)
1001 {
1002 pulse_data *data = device->ExtraData;
1003 pa_stream_flags_t flags = 0;
1004 pa_channel_map chanmap;
1005
1006 pa_threaded_mainloop_lock(data->loop);
1007
1008 if(data->stream)
1009 {
1010 pa_stream_set_moved_callback(data->stream, NULL, NULL);
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, NULL, NULL);
1014 #endif
1015 pa_stream_disconnect(data->stream);
1016 pa_stream_unref(data->stream);
1017 data->stream = NULL;
1018 }
1019
1020 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
1021 {
1022 pa_operation *o;
1023 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
1024 wait_for_operation(o, data->loop);
1025 }
1026 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
1027 flags |= PA_STREAM_FIX_RATE;
1028
1029 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
1030 flags |= PA_STREAM_ADJUST_LATENCY;
1031 flags |= PA_STREAM_START_CORKED;
1032 if(!GetConfigValueBool("pulse", "allow-moves", 0))
1033 flags |= PA_STREAM_DONT_MOVE;
1034
1035 switch(device->FmtType)
1036 {
1037 case DevFmtByte:
1038 device->FmtType = DevFmtUByte;
1039 /* fall-through */
1040 case DevFmtUByte:
1041 data->spec.format = PA_SAMPLE_U8;
1042 break;
1043 case DevFmtUShort:
1044 device->FmtType = DevFmtShort;
1045 /* fall-through */
1046 case DevFmtShort:
1047 data->spec.format = PA_SAMPLE_S16NE;
1048 break;
1049 case DevFmtUInt:
1050 device->FmtType = DevFmtInt;
1051 /* fall-through */
1052 case DevFmtInt:
1053 data->spec.format = PA_SAMPLE_S32NE;
1054 break;
1055 case DevFmtFloat:
1056 data->spec.format = PA_SAMPLE_FLOAT32NE;
1057 break;
1058 }
1059 data->spec.rate = device->Frequency;
1060 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1061
1062 if(pa_sample_spec_valid(&data->spec) == 0)
1063 {
1064 ERR("Invalid sample format\n");
1065 pa_threaded_mainloop_unlock(data->loop);
1066 return ALC_FALSE;
1067 }
1068
1069 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1070 {
1071 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1072 pa_threaded_mainloop_unlock(data->loop);
1073 return ALC_FALSE;
1074 }
1075 SetDefaultWFXChannelOrder(device);
1076
1077 data->attr.fragsize = -1;
1078 data->attr.prebuf = 0;
1079 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1080 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1081 data->attr.maxlength = -1;
1082
1083 data->stream = connect_playback_stream(data->device_name, data->loop,
1084 data->context, flags, &data->attr,
1085 &data->spec, &chanmap);
1086 if(!data->stream)
1087 {
1088 pa_threaded_mainloop_unlock(data->loop);
1089 return ALC_FALSE;
1090 }
1091 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1092
1093 data->spec = *(pa_stream_get_sample_spec(data->stream));
1094 if(device->Frequency != data->spec.rate)
1095 {
1096 pa_operation *o;
1097
1098 /* Server updated our playback rate, so modify the buffer attribs
1099 * accordingly. */
1100 data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
1101 device->Frequency * pa_frame_size(&data->spec);
1102 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1103 data->attr.prebuf = 0;
1104
1105 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1106 stream_success_callback, device);
1107 wait_for_operation(o, data->loop);
1108
1109 device->Frequency = data->spec.rate;
1110 }
1111
1112 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
1113 #if PA_CHECK_VERSION(0,9,15)
1114 if(pa_stream_set_buffer_attr_callback)
1115 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1116 #endif
1117 stream_buffer_attr_callback(data->stream, device);
1118
1119 device->NumUpdates = device->UpdateSize*device->NumUpdates /
1120 (data->attr.minreq/pa_frame_size(&data->spec));
1121 device->NumUpdates = maxu(device->NumUpdates, 2);
1122 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1123
1124 pa_threaded_mainloop_unlock(data->loop);
1125 return ALC_TRUE;
1126 }
1127
1128 static ALCboolean pulse_start_playback(ALCdevice *device)
1129 {
1130 pulse_data *data = device->ExtraData;
1131
1132 data->thread = StartThread(PulseProc, device);
1133 if(!data->thread)
1134 return ALC_FALSE;
1135
1136 return ALC_TRUE;
1137 }
1138
1139 static void pulse_stop_playback(ALCdevice *device)
1140 {
1141 pulse_data *data = device->ExtraData;
1142 pa_operation *o;
1143
1144 if(!data->stream)
1145 return;
1146
1147 data->killNow = AL_TRUE;
1148 if(data->thread)
1149 {
1150 StopThread(data->thread);
1151 data->thread = NULL;
1152 }
1153 data->killNow = AL_FALSE;
1154
1155 pa_threaded_mainloop_lock(data->loop);
1156
1157 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1158 wait_for_operation(o, data->loop);
1159
1160 pa_threaded_mainloop_unlock(data->loop);
1161 }
1162
1163
1164 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name)
1165 {
1166 const char *pulse_name = NULL;
1167 pa_stream_flags_t flags = 0;
1168 pa_channel_map chanmap;
1169 pulse_data *data;
1170 pa_operation *o;
1171 ALuint samples;
1172
1173 if(device_name)
1174 {
1175 ALuint i;
1176
1177 if(!allCaptureDevNameMap)
1178 probe_devices(AL_TRUE);
1179
1180 for(i = 0;i < numCaptureDevNames;i++)
1181 {
1182 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1183 {
1184 pulse_name = allCaptureDevNameMap[i].device_name;
1185 break;
1186 }
1187 }
1188 if(i == numCaptureDevNames)
1189 return ALC_INVALID_VALUE;
1190 }
1191
1192 if(pulse_open(device) == ALC_FALSE)
1193 return ALC_INVALID_VALUE;
1194
1195 data = device->ExtraData;
1196 pa_threaded_mainloop_lock(data->loop);
1197
1198 data->spec.rate = device->Frequency;
1199 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1200
1201 switch(device->FmtType)
1202 {
1203 case DevFmtUByte:
1204 data->spec.format = PA_SAMPLE_U8;
1205 break;
1206 case DevFmtShort:
1207 data->spec.format = PA_SAMPLE_S16NE;
1208 break;
1209 case DevFmtInt:
1210 data->spec.format = PA_SAMPLE_S32NE;
1211 break;
1212 case DevFmtFloat:
1213 data->spec.format = PA_SAMPLE_FLOAT32NE;
1214 break;
1215 case DevFmtByte:
1216 case DevFmtUShort:
1217 case DevFmtUInt:
1218 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1219 pa_threaded_mainloop_unlock(data->loop);
1220 goto fail;
1221 }
1222
1223 if(pa_sample_spec_valid(&data->spec) == 0)
1224 {
1225 ERR("Invalid sample format\n");
1226 pa_threaded_mainloop_unlock(data->loop);
1227 goto fail;
1228 }
1229
1230 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1231 {
1232 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1233 pa_threaded_mainloop_unlock(data->loop);
1234 goto fail;
1235 }
1236
1237 samples = device->UpdateSize * device->NumUpdates;
1238 samples = maxu(samples, 100 * device->Frequency / 1000);
1239
1240 data->attr.minreq = -1;
1241 data->attr.prebuf = -1;
1242 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1243 data->attr.tlength = -1;
1244 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1245 pa_frame_size(&data->spec);
1246
1247 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1248 if(!GetConfigValueBool("pulse", "allow-moves", 0))
1249 flags |= PA_STREAM_DONT_MOVE;
1250
1251 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1252 flags, &data->attr, &data->spec,
1253 &chanmap);
1254 if(!data->stream)
1255 {
1256 pa_threaded_mainloop_unlock(data->loop);
1257 goto fail;
1258 }
1259 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1260
1261 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1262 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1263 source_name_callback, device);
1264 wait_for_operation(o, data->loop);
1265
1266 pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
1267
1268 pa_threaded_mainloop_unlock(data->loop);
1269 return ALC_NO_ERROR;
1270
1271 fail:
1272 pulse_close(device);
1273 return ALC_INVALID_VALUE;
1274 }
1275
1276 static void pulse_close_capture(ALCdevice *device)
1277 {
1278 pulse_close(device);
1279 }
1280
1281 static void pulse_start_capture(ALCdevice *device)
1282 {
1283 pulse_data *data = device->ExtraData;
1284 pa_operation *o;
1285
1286 pa_threaded_mainloop_lock(data->loop);
1287 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1288 wait_for_operation(o, data->loop);
1289 pa_threaded_mainloop_unlock(data->loop);
1290 }
1291
1292 static void pulse_stop_capture(ALCdevice *device)
1293 {
1294 pulse_data *data = device->ExtraData;
1295 pa_operation *o;
1296
1297 pa_threaded_mainloop_lock(data->loop);
1298 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1299 wait_for_operation(o, data->loop);
1300 pa_threaded_mainloop_unlock(data->loop);
1301 }
1302
1303 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
1304 {
1305 pulse_data *data = device->ExtraData;
1306 ALCuint todo = samples * pa_frame_size(&data->spec);
1307
1308 pa_threaded_mainloop_lock(data->loop);
1309 /* Capture is done in fragment-sized chunks, so we loop until we get all
1310 * that's available */
1311 data->last_readable -= todo;
1312 while(todo > 0)
1313 {
1314 size_t rem = todo;
1315
1316 if(data->cap_len == 0)
1317 {
1318 pa_stream_state_t state;
1319
1320 state = pa_stream_get_state(data->stream);
1321 if(!PA_STREAM_IS_GOOD(state))
1322 {
1323 aluHandleDisconnect(device);
1324 break;
1325 }
1326 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1327 {
1328 ERR("pa_stream_peek() failed: %s\n",
1329 pa_strerror(pa_context_errno(data->context)));
1330 aluHandleDisconnect(device);
1331 break;
1332 }
1333 data->cap_remain = data->cap_len;
1334 }
1335 if(rem > data->cap_remain)
1336 rem = data->cap_remain;
1337
1338 memcpy(buffer, data->cap_store, rem);
1339
1340 buffer = (ALbyte*)buffer + rem;
1341 todo -= rem;
1342
1343 data->cap_store = (ALbyte*)data->cap_store + rem;
1344 data->cap_remain -= rem;
1345 if(data->cap_remain == 0)
1346 {
1347 pa_stream_drop(data->stream);
1348 data->cap_len = 0;
1349 }
1350 }
1351 if(todo > 0)
1352 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1353 pa_threaded_mainloop_unlock(data->loop);
1354
1355 return ALC_NO_ERROR;
1356 }
1357
1358 static ALCuint pulse_available_samples(ALCdevice *device)
1359 {
1360 pulse_data *data = device->ExtraData;
1361 size_t readable = data->cap_remain;
1362
1363 pa_threaded_mainloop_lock(data->loop);
1364 if(device->Connected)
1365 {
1366 ssize_t got = pa_stream_readable_size(data->stream);
1367 if(got < 0)
1368 {
1369 ERR("pa_stream_readable_size() failed: %s\n", pa_strerror(got));
1370 aluHandleDisconnect(device);
1371 }
1372 else if((size_t)got > data->cap_len)
1373 readable += got - data->cap_len;
1374 }
1375 pa_threaded_mainloop_unlock(data->loop);
1376
1377 if(data->last_readable < readable)
1378 data->last_readable = readable;
1379 return data->last_readable / pa_frame_size(&data->spec);
1380 }
1381
1382
1383 static ALint64 pulse_get_latency(ALCdevice *device)
1384 {
1385 pulse_data *data = device->ExtraData;
1386 pa_usec_t latency = 0;
1387 int neg;
1388
1389 if(pa_stream_get_latency(data->stream, &latency, &neg) == 0)
1390 {
1391 if(neg)
1392 latency = 0;
1393 return (ALint64)minu64(latency, (((ALuint64)0x7fffffff << 32)|0xffffffff)/1000) * 1000;
1394 }
1395 ERR("Failed to get stream latency!\n");
1396 return 0;
1397 }
1398
1399
1400 static const BackendFuncs pulse_funcs = {
1401 pulse_open_playback,
1402 pulse_close_playback,
1403 pulse_reset_playback,
1404 pulse_start_playback,
1405 pulse_stop_playback,
1406 pulse_open_capture,
1407 pulse_close_capture,
1408 pulse_start_capture,
1409 pulse_stop_capture,
1410 pulse_capture_samples,
1411 pulse_available_samples,
1412 ALCdevice_LockDefault,
1413 ALCdevice_UnlockDefault,
1414 pulse_get_latency
1415 };
1416
1417 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1418 {
1419 ALCboolean ret = ALC_FALSE;
1420
1421 if(pulse_load())
1422 {
1423 pa_threaded_mainloop *loop;
1424
1425 pulse_ctx_flags = 0;
1426 if(!GetConfigValueBool("pulse", "spawn-server", 1))
1427 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1428
1429 if((loop=pa_threaded_mainloop_new()) &&
1430 pa_threaded_mainloop_start(loop) >= 0)
1431 {
1432 pa_context *context;
1433
1434 pa_threaded_mainloop_lock(loop);
1435 context = connect_context(loop, AL_TRUE);
1436 if(context)
1437 {
1438 *func_list = pulse_funcs;
1439 ret = ALC_TRUE;
1440
1441 /* Some libraries (Phonon, Qt) set some pulseaudio properties
1442 * through environment variables, which causes all streams in
1443 * the process to inherit them. This attempts to filter those
1444 * properties out by setting them to 0-length data. */
1445 prop_filter = pa_proplist_new();
1446 pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
1447 pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);
1448
1449 pa_context_disconnect(context);
1450 pa_context_unref(context);
1451 }
1452 pa_threaded_mainloop_unlock(loop);
1453 pa_threaded_mainloop_stop(loop);
1454 }
1455 if(loop)
1456 pa_threaded_mainloop_free(loop);
1457 }
1458
1459 return ret;
1460 }
1461
1462 void alc_pulse_deinit(void)
1463 {
1464 ALuint i;
1465
1466 for(i = 0;i < numDevNames;++i)
1467 {
1468 free(allDevNameMap[i].name);
1469 free(allDevNameMap[i].device_name);
1470 }
1471 free(allDevNameMap);
1472 allDevNameMap = NULL;
1473 numDevNames = 0;
1474
1475 for(i = 0;i < numCaptureDevNames;++i)
1476 {
1477 free(allCaptureDevNameMap[i].name);
1478 free(allCaptureDevNameMap[i].device_name);
1479 }
1480 free(allCaptureDevNameMap);
1481 allCaptureDevNameMap = NULL;
1482 numCaptureDevNames = 0;
1483
1484 if(prop_filter)
1485 pa_proplist_free(prop_filter);
1486 prop_filter = NULL;
1487
1488 /* PulseAudio doesn't like being CloseLib'd sometimes */
1489 }
1490
1491 void alc_pulse_probe(enum DevProbe type)
1492 {
1493 ALuint i;
1494
1495 switch(type)
1496 {
1497 case ALL_DEVICE_PROBE:
1498 for(i = 0;i < numDevNames;++i)
1499 {
1500 free(allDevNameMap[i].name);
1501 free(allDevNameMap[i].device_name);
1502 }
1503 free(allDevNameMap);
1504 allDevNameMap = NULL;
1505 numDevNames = 0;
1506
1507 probe_devices(AL_FALSE);
1508
1509 for(i = 0;i < numDevNames;i++)
1510 AppendAllDevicesList(allDevNameMap[i].name);
1511 break;
1512
1513 case CAPTURE_DEVICE_PROBE:
1514 for(i = 0;i < numCaptureDevNames;++i)
1515 {
1516 free(allCaptureDevNameMap[i].name);
1517 free(allCaptureDevNameMap[i].device_name);
1518 }
1519 free(allCaptureDevNameMap);
1520 allCaptureDevNameMap = NULL;
1521 numCaptureDevNames = 0;
1522
1523 probe_devices(AL_TRUE);
1524
1525 for(i = 0;i < numCaptureDevNames;i++)
1526 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1527 break;
1528 }
1529 }
1530
1531 #else
1532
1533 #warning "Unsupported API version, backend will be unavailable!"
1534
1535 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1536 { return ALC_FALSE; (void)func_list; }
1537
1538 void alc_pulse_deinit(void)
1539 { }
1540
1541 void alc_pulse_probe(enum DevProbe type)
1542 { (void)type; }
1543
1544 #endif
Software OpenAL implementation