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Look for and enumerate the default PulseAudio source first
[openal-soft.git] / Alc / backends / pulseaudio.c
blob5659e44e0cb0efe8a2c608a4f03a08dcb02f6c8d
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
4 * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 * Or go to http://www.gnu.org/copyleft/lgpl.html
20 */
21
22 #include "config.h"
23
24 #include "alMain.h"
25
26 #include <pulse/pulseaudio.h>
27
28 #if PA_API_VERSION == 11
29 #define PA_STREAM_ADJUST_LATENCY 0x2000U
30 #define PA_STREAM_EARLY_REQUESTS 0x4000U
31 static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
32 {
33 return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
34 }
35 static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
36 {
37 return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
38 x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
39 }
40 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
41 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
42 #elif PA_API_VERSION != 12
43 #error Invalid PulseAudio API version
44 #endif
45
46 #ifndef PA_CHECK_VERSION
47 #define PA_CHECK_VERSION(major,minor,micro) \
48 ((PA_MAJOR > (major)) || \
49 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
50 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
51 #endif
52
53 static void *pa_handle;
54 #ifdef HAVE_DYNLOAD
55 #define MAKE_FUNC(x) static typeof(x) * p##x
56 MAKE_FUNC(pa_context_unref);
57 MAKE_FUNC(pa_sample_spec_valid);
58 MAKE_FUNC(pa_frame_size);
59 MAKE_FUNC(pa_stream_drop);
60 MAKE_FUNC(pa_strerror);
61 MAKE_FUNC(pa_context_get_state);
62 MAKE_FUNC(pa_stream_get_state);
63 MAKE_FUNC(pa_threaded_mainloop_signal);
64 MAKE_FUNC(pa_stream_peek);
65 MAKE_FUNC(pa_threaded_mainloop_wait);
66 MAKE_FUNC(pa_threaded_mainloop_unlock);
67 MAKE_FUNC(pa_threaded_mainloop_in_thread);
68 MAKE_FUNC(pa_context_new);
69 MAKE_FUNC(pa_threaded_mainloop_stop);
70 MAKE_FUNC(pa_context_disconnect);
71 MAKE_FUNC(pa_threaded_mainloop_start);
72 MAKE_FUNC(pa_threaded_mainloop_get_api);
73 MAKE_FUNC(pa_context_set_state_callback);
74 MAKE_FUNC(pa_stream_write);
75 MAKE_FUNC(pa_xfree);
76 MAKE_FUNC(pa_stream_connect_record);
77 MAKE_FUNC(pa_stream_connect_playback);
78 MAKE_FUNC(pa_stream_readable_size);
79 MAKE_FUNC(pa_stream_writable_size);
80 MAKE_FUNC(pa_stream_cork);
81 MAKE_FUNC(pa_stream_is_suspended);
82 MAKE_FUNC(pa_stream_get_device_name);
83 MAKE_FUNC(pa_path_get_filename);
84 MAKE_FUNC(pa_get_binary_name);
85 MAKE_FUNC(pa_threaded_mainloop_free);
86 MAKE_FUNC(pa_context_errno);
87 MAKE_FUNC(pa_xmalloc);
88 MAKE_FUNC(pa_stream_unref);
89 MAKE_FUNC(pa_threaded_mainloop_accept);
90 MAKE_FUNC(pa_stream_set_write_callback);
91 MAKE_FUNC(pa_threaded_mainloop_new);
92 MAKE_FUNC(pa_context_connect);
93 MAKE_FUNC(pa_stream_set_buffer_attr);
94 MAKE_FUNC(pa_stream_get_buffer_attr);
95 MAKE_FUNC(pa_stream_get_sample_spec);
96 MAKE_FUNC(pa_stream_get_time);
97 MAKE_FUNC(pa_stream_set_read_callback);
98 MAKE_FUNC(pa_stream_set_state_callback);
99 MAKE_FUNC(pa_stream_set_moved_callback);
100 MAKE_FUNC(pa_stream_set_underflow_callback);
101 MAKE_FUNC(pa_stream_new);
102 MAKE_FUNC(pa_stream_disconnect);
103 MAKE_FUNC(pa_threaded_mainloop_lock);
104 MAKE_FUNC(pa_channel_map_init_auto);
105 MAKE_FUNC(pa_channel_map_parse);
106 MAKE_FUNC(pa_channel_map_snprint);
107 MAKE_FUNC(pa_channel_map_equal);
108 MAKE_FUNC(pa_context_get_server_info);
109 MAKE_FUNC(pa_context_get_sink_info_by_name);
110 MAKE_FUNC(pa_context_get_sink_info_list);
111 MAKE_FUNC(pa_context_get_source_info_by_name);
112 MAKE_FUNC(pa_context_get_source_info_list);
113 MAKE_FUNC(pa_operation_get_state);
114 MAKE_FUNC(pa_operation_unref);
115 #if PA_CHECK_VERSION(0,9,15)
116 MAKE_FUNC(pa_channel_map_superset);
117 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
118 #endif
119 #if PA_CHECK_VERSION(0,9,16)
120 MAKE_FUNC(pa_stream_begin_write);
121 #endif
122 #undef MAKE_FUNC
123
124 #define pa_context_unref ppa_context_unref
125 #define pa_sample_spec_valid ppa_sample_spec_valid
126 #define pa_frame_size ppa_frame_size
127 #define pa_stream_drop ppa_stream_drop
128 #define pa_strerror ppa_strerror
129 #define pa_context_get_state ppa_context_get_state
130 #define pa_stream_get_state ppa_stream_get_state
131 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
132 #define pa_stream_peek ppa_stream_peek
133 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
134 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
135 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
136 #define pa_context_new ppa_context_new
137 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
138 #define pa_context_disconnect ppa_context_disconnect
139 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
140 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
141 #define pa_context_set_state_callback ppa_context_set_state_callback
142 #define pa_stream_write ppa_stream_write
143 #define pa_xfree ppa_xfree
144 #define pa_stream_connect_record ppa_stream_connect_record
145 #define pa_stream_connect_playback ppa_stream_connect_playback
146 #define pa_stream_readable_size ppa_stream_readable_size
147 #define pa_stream_writable_size ppa_stream_writable_size
148 #define pa_stream_cork ppa_stream_cork
149 #define pa_stream_is_suspended ppa_stream_is_suspended
150 #define pa_stream_get_device_name ppa_stream_get_device_name
151 #define pa_path_get_filename ppa_path_get_filename
152 #define pa_get_binary_name ppa_get_binary_name
153 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
154 #define pa_context_errno ppa_context_errno
155 #define pa_xmalloc ppa_xmalloc
156 #define pa_stream_unref ppa_stream_unref
157 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
158 #define pa_stream_set_write_callback ppa_stream_set_write_callback
159 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
160 #define pa_context_connect ppa_context_connect
161 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
162 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
163 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
164 #define pa_stream_get_time ppa_stream_get_time
165 #define pa_stream_set_read_callback ppa_stream_set_read_callback
166 #define pa_stream_set_state_callback ppa_stream_set_state_callback
167 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
168 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
169 #define pa_stream_new ppa_stream_new
170 #define pa_stream_disconnect ppa_stream_disconnect
171 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
172 #define pa_channel_map_init_auto ppa_channel_map_init_auto
173 #define pa_channel_map_parse ppa_channel_map_parse
174 #define pa_channel_map_snprint ppa_channel_map_snprint
175 #define pa_channel_map_equal ppa_channel_map_equal
176 #define pa_context_get_server_info ppa_context_get_server_info
177 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
178 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
179 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
180 #define pa_context_get_source_info_list ppa_context_get_source_info_list
181 #define pa_operation_get_state ppa_operation_get_state
182 #define pa_operation_unref ppa_operation_unref
183 #if PA_CHECK_VERSION(0,9,15)
184 #define pa_channel_map_superset ppa_channel_map_superset
185 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
186 #endif
187 #if PA_CHECK_VERSION(0,9,16)
188 #define pa_stream_begin_write ppa_stream_begin_write
189 #endif
190
191 #endif
192
193 #ifndef PATH_MAX
194 #define PATH_MAX 4096
195 #endif
196
197 typedef struct {
198 char *device_name;
199
200 const void *cap_store;
201 size_t cap_len;
202 size_t cap_remain;
203
204 ALCuint last_readable;
205
206 pa_buffer_attr attr;
207 pa_sample_spec spec;
208
209 pa_threaded_mainloop *loop;
210
211 ALvoid *thread;
212 volatile ALboolean killNow;
213
214 pa_stream *stream;
215 pa_context *context;
216 } pulse_data;
217
218 typedef struct {
219 char *name;
220 char *device_name;
221 } DevMap;
222
223
224 static DevMap *allDevNameMap;
225 static ALuint numDevNames;
226 static DevMap *allCaptureDevNameMap;
227 static ALuint numCaptureDevNames;
228 static pa_context_flags_t pulse_ctx_flags;
229
230
231 static void context_state_callback(pa_context *context, void *pdata)
232 {
233 pa_threaded_mainloop *loop = pdata;
234 pa_context_state_t state;
235
236 state = pa_context_get_state(context);
237 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
238 pa_threaded_mainloop_signal(loop, 0);
239 }
240
241 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
242 {
243 const char *name = "OpenAL Soft";
244 char path_name[PATH_MAX];
245 pa_context_state_t state;
246 pa_context *context;
247 int err;
248
249 if(pa_get_binary_name(path_name, sizeof(path_name)))
250 name = pa_path_get_filename(path_name);
251
252 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
253 if(!context)
254 {
255 ERR("pa_context_new() failed\n");
256 return NULL;
257 }
258
259 pa_context_set_state_callback(context, context_state_callback, loop);
260
261 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
262 {
263 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
264 {
265 if(!PA_CONTEXT_IS_GOOD(state))
266 {
267 err = pa_context_errno(context);
268 if(err > 0) err = -err;
269 break;
270 }
271
272 pa_threaded_mainloop_wait(loop);
273 }
274 }
275 pa_context_set_state_callback(context, NULL, NULL);
276
277 if(err < 0)
278 {
279 if(!silent)
280 ERR("Context did not connect: %s\n", pa_strerror(err));
281 pa_context_unref(context);
282 return NULL;
283 }
284
285 return context;
286 }
287
288
289 static ALCboolean pulse_load(void) //{{{
290 {
291 ALCboolean ret = ALC_TRUE;
292 if(!pa_handle)
293 {
294 #ifdef HAVE_DYNLOAD
295
296 #ifdef _WIN32
297 #define PALIB "libpulse-0.dll"
298 #elif defined(__APPLE__) && defined(__MACH__)
299 #define PALIB "libpulse.0.dylib"
300 #else
301 #define PALIB "libpulse.so.0"
302 #endif
303 pa_handle = LoadLib(PALIB);
304 if(!pa_handle)
305 return ALC_FALSE;
306
307 #define LOAD_FUNC(x) do { \
308 p##x = GetSymbol(pa_handle, #x); \
309 if(!(p##x)) { \
310 ret = ALC_FALSE; \
311 } \
312 } while(0)
313 LOAD_FUNC(pa_context_unref);
314 LOAD_FUNC(pa_sample_spec_valid);
315 LOAD_FUNC(pa_stream_drop);
316 LOAD_FUNC(pa_frame_size);
317 LOAD_FUNC(pa_strerror);
318 LOAD_FUNC(pa_context_get_state);
319 LOAD_FUNC(pa_stream_get_state);
320 LOAD_FUNC(pa_threaded_mainloop_signal);
321 LOAD_FUNC(pa_stream_peek);
322 LOAD_FUNC(pa_threaded_mainloop_wait);
323 LOAD_FUNC(pa_threaded_mainloop_unlock);
324 LOAD_FUNC(pa_threaded_mainloop_in_thread);
325 LOAD_FUNC(pa_context_new);
326 LOAD_FUNC(pa_threaded_mainloop_stop);
327 LOAD_FUNC(pa_context_disconnect);
328 LOAD_FUNC(pa_threaded_mainloop_start);
329 LOAD_FUNC(pa_threaded_mainloop_get_api);
330 LOAD_FUNC(pa_context_set_state_callback);
331 LOAD_FUNC(pa_stream_write);
332 LOAD_FUNC(pa_xfree);
333 LOAD_FUNC(pa_stream_connect_record);
334 LOAD_FUNC(pa_stream_connect_playback);
335 LOAD_FUNC(pa_stream_readable_size);
336 LOAD_FUNC(pa_stream_writable_size);
337 LOAD_FUNC(pa_stream_cork);
338 LOAD_FUNC(pa_stream_is_suspended);
339 LOAD_FUNC(pa_stream_get_device_name);
340 LOAD_FUNC(pa_path_get_filename);
341 LOAD_FUNC(pa_get_binary_name);
342 LOAD_FUNC(pa_threaded_mainloop_free);
343 LOAD_FUNC(pa_context_errno);
344 LOAD_FUNC(pa_xmalloc);
345 LOAD_FUNC(pa_stream_unref);
346 LOAD_FUNC(pa_threaded_mainloop_accept);
347 LOAD_FUNC(pa_stream_set_write_callback);
348 LOAD_FUNC(pa_threaded_mainloop_new);
349 LOAD_FUNC(pa_context_connect);
350 LOAD_FUNC(pa_stream_set_buffer_attr);
351 LOAD_FUNC(pa_stream_get_buffer_attr);
352 LOAD_FUNC(pa_stream_get_sample_spec);
353 LOAD_FUNC(pa_stream_get_time);
354 LOAD_FUNC(pa_stream_set_read_callback);
355 LOAD_FUNC(pa_stream_set_state_callback);
356 LOAD_FUNC(pa_stream_set_moved_callback);
357 LOAD_FUNC(pa_stream_set_underflow_callback);
358 LOAD_FUNC(pa_stream_new);
359 LOAD_FUNC(pa_stream_disconnect);
360 LOAD_FUNC(pa_threaded_mainloop_lock);
361 LOAD_FUNC(pa_channel_map_init_auto);
362 LOAD_FUNC(pa_channel_map_parse);
363 LOAD_FUNC(pa_channel_map_snprint);
364 LOAD_FUNC(pa_channel_map_equal);
365 LOAD_FUNC(pa_context_get_server_info);
366 LOAD_FUNC(pa_context_get_sink_info_by_name);
367 LOAD_FUNC(pa_context_get_sink_info_list);
368 LOAD_FUNC(pa_context_get_source_info_by_name);
369 LOAD_FUNC(pa_context_get_source_info_list);
370 LOAD_FUNC(pa_operation_get_state);
371 LOAD_FUNC(pa_operation_unref);
372 #undef LOAD_FUNC
373 #define LOAD_OPTIONAL_FUNC(x) do { \
374 p##x = GetSymbol(pa_handle, #x); \
375 } while(0)
376 #if PA_CHECK_VERSION(0,9,15)
377 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
378 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
379 #endif
380 #if PA_CHECK_VERSION(0,9,16)
381 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
382 #endif
383 #undef LOAD_OPTIONAL_FUNC
384
385 #else /* HAVE_DYNLOAD */
386 pa_handle = (void*)0xDEADBEEF;
387 #endif
388
389 if(ret == ALC_FALSE)
390 {
391 #ifdef HAVE_DYNLOAD
392 CloseLib(pa_handle);
393 #endif
394 pa_handle = NULL;
395 }
396 }
397 return ret;
398 } //}}}
399
400 // PulseAudio Event Callbacks //{{{
401 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
402 {
403 pa_threaded_mainloop *loop = pdata;
404 pa_stream_state_t state;
405
406 state = pa_stream_get_state(stream);
407 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
408 pa_threaded_mainloop_signal(loop, 0);
409 }//}}}
410
411 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
412 {
413 ALCdevice *Device = pdata;
414 pulse_data *data = Device->ExtraData;
415 (void)stream;
416
417 pa_threaded_mainloop_signal(data->loop, 0);
418 }//}}}
419
420 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
421 {
422 const pa_buffer_attr *attr;
423 (void)pdata;
424
425 attr = pa_stream_get_buffer_attr(stream);
426 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", attr->minreq, attr->tlength);
427 }//}}}
428
429 static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
430 {
431 ALCdevice *Device = pdata;
432 pulse_data *data = Device->ExtraData;
433
434 free(data->device_name);
435 data->device_name = strdup(pa_stream_get_device_name(stream));
436 }//}}}
437
438 static void context_state_callback2(pa_context *context, void *pdata) //{{{
439 {
440 ALCdevice *Device = pdata;
441 pulse_data *data = Device->ExtraData;
442
443 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
444 {
445 ERR("Received context failure!\n");
446 aluHandleDisconnect(Device);
447 }
448 pa_threaded_mainloop_signal(data->loop, 0);
449 }//}}}
450
451 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
452 {
453 ALCdevice *Device = pdata;
454 pulse_data *data = Device->ExtraData;
455
456 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
457 {
458 ERR("Received stream failure!\n");
459 aluHandleDisconnect(Device);
460 }
461 pa_threaded_mainloop_signal(data->loop, 0);
462 }//}}}
463
464 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
465 {
466 ALCdevice *Device = pdata;
467 pulse_data *data = Device->ExtraData;
468 (void)stream;
469 (void)success;
470
471 pa_threaded_mainloop_signal(data->loop, 0);
472 }//}}}
473
474 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
475 {
476 ALCdevice *device = pdata;
477 pulse_data *data = device->ExtraData;
478 char chanmap_str[256] = "";
479 const struct {
480 const char *str;
481 enum DevFmtChannels chans;
482 } chanmaps[] = {
483 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
484 DevFmtX71 },
485 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
486 DevFmtX61 },
487 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
488 DevFmtX51 },
489 { "front-left,front-right,front-center,lfe,side-left,side-right",
490 DevFmtX51Side },
491 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
492 { "front-left,front-right", DevFmtStereo },
493 { "mono", DevFmtMono },
494 { NULL, 0 }
495 };
496 int i;
497 (void)context;
498
499 if(eol)
500 {
501 pa_threaded_mainloop_signal(data->loop, 0);
502 return;
503 }
504
505 for(i = 0;chanmaps[i].str;i++)
506 {
507 pa_channel_map map;
508 if(!pa_channel_map_parse(&map, chanmaps[i].str))
509 continue;
510
511 if(pa_channel_map_equal(&info->channel_map, &map)
512 #if PA_CHECK_VERSION(0,9,15)
513 || (pa_channel_map_superset &&
514 pa_channel_map_superset(&info->channel_map, &map))
515 #endif
516 )
517 {
518 device->FmtChans = chanmaps[i].chans;
519 return;
520 }
521 }
522
523 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
524 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
525 }//}}}
526
527 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
528 {
529 pa_threaded_mainloop *loop = pdata;
530 void *temp;
531 ALuint i;
532
533 (void)context;
534
535 if(eol)
536 {
537 pa_threaded_mainloop_signal(loop, 0);
538 return;
539 }
540
541 for(i = 0;i < numDevNames;i++)
542 {
543 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
544 return;
545 }
546
547 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
548
549 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
550 if(temp)
551 {
552 allDevNameMap = temp;
553 allDevNameMap[numDevNames].name = strdup(info->description);
554 allDevNameMap[numDevNames].device_name = strdup(info->name);
555 numDevNames++;
556 }
557 }//}}}
558
559 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
560 {
561 pa_threaded_mainloop *loop = pdata;
562 void *temp;
563 ALuint i;
564
565 (void)context;
566
567 if(eol)
568 {
569 pa_threaded_mainloop_signal(loop, 0);
570 return;
571 }
572
573 for(i = 0;i < numCaptureDevNames;i++)
574 {
575 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
576 return;
577 }
578
579 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
580
581 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
582 if(temp)
583 {
584 allCaptureDevNameMap = temp;
585 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
586 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
587 numCaptureDevNames++;
588 }
589 }//}}}
590 //}}}
591
592 // PulseAudio I/O Callbacks //{{{
593 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
594 {
595 ALCdevice *Device = pdata;
596 pulse_data *data = Device->ExtraData;
597 (void)stream;
598 (void)len;
599
600 pa_threaded_mainloop_signal(data->loop, 0);
601 } //}}}
602 //}}}
603
604 static ALuint PulseProc(ALvoid *param)
605 {
606 ALCdevice *Device = param;
607 pulse_data *data = Device->ExtraData;
608 size_t frame_size;
609 size_t len;
610
611 SetRTPriority();
612
613 frame_size = pa_frame_size(&data->spec);
614 pa_threaded_mainloop_lock(data->loop);
615 do {
616 len = pa_stream_writable_size(data->stream);
617 if(len < data->attr.minreq)
618 {
619 pa_threaded_mainloop_wait(data->loop);
620 continue;
621 }
622 len -= len%data->attr.minreq;
623
624 while(len > 0)
625 {
626 size_t newlen = len;
627 void *buf;
628 pa_free_cb_t free_func = NULL;
629
630 #if PA_CHECK_VERSION(0,9,16)
631 if(!pa_stream_begin_write ||
632 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
633 #endif
634 {
635 buf = pa_xmalloc(newlen);
636 free_func = pa_xfree;
637 }
638 pa_threaded_mainloop_unlock(data->loop);
639
640 aluMixData(Device, buf, newlen/frame_size);
641
642 pa_threaded_mainloop_lock(data->loop);
643 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
644 len -= newlen;
645 }
646 } while(!data->killNow && Device->Connected);
647 pa_threaded_mainloop_unlock(data->loop);
648
649 return 0;
650 }
651
652 static pa_stream *connect_playback_stream(const char *device_name,
653 pa_threaded_mainloop *loop, pa_context *context,
654 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
655 pa_channel_map *chanmap)
656 {
657 pa_stream_state_t state;
658 pa_stream *stream;
659
660 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
661 if(!stream)
662 {
663 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
664 return NULL;
665 }
666
667 pa_stream_set_state_callback(stream, stream_state_callback, loop);
668
669 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
670 {
671 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
672 pa_stream_unref(stream);
673 return NULL;
674 }
675
676 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
677 {
678 if(!PA_STREAM_IS_GOOD(state))
679 {
680 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
681 pa_stream_unref(stream);
682 return NULL;
683 }
684
685 pa_threaded_mainloop_wait(loop);
686 }
687 pa_stream_set_state_callback(stream, NULL, NULL);
688
689 return stream;
690 }
691
692 static pa_stream *connect_record_stream(const char *device_name,
693 pa_threaded_mainloop *loop, pa_context *context,
694 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
695 pa_channel_map *chanmap)
696 {
697 pa_stream_state_t state;
698 pa_stream *stream;
699
700 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
701 if(!stream)
702 {
703 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
704 return NULL;
705 }
706
707 pa_stream_set_state_callback(stream, stream_state_callback, loop);
708
709 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
710 {
711 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
712 pa_stream_unref(stream);
713 return NULL;
714 }
715
716 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
717 {
718 if(!PA_STREAM_IS_GOOD(state))
719 {
720 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
721 pa_stream_unref(stream);
722 return NULL;
723 }
724
725 pa_threaded_mainloop_wait(loop);
726 }
727 pa_stream_set_state_callback(stream, NULL, NULL);
728
729 return stream;
730 }
731
732 static void probe_devices(ALboolean capture)
733 {
734 pa_threaded_mainloop *loop;
735
736 if(capture == AL_FALSE)
737 allDevNameMap = malloc(sizeof(DevMap) * 1);
738 else
739 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
740
741 if((loop=pa_threaded_mainloop_new()) &&
742 pa_threaded_mainloop_start(loop) >= 0)
743 {
744 pa_context *context;
745
746 pa_threaded_mainloop_lock(loop);
747 context = connect_context(loop, AL_FALSE);
748 if(context)
749 {
750 pa_operation *o;
751
752 if(capture == AL_FALSE)
753 {
754 pa_sample_spec spec;
755 pa_stream *stream;
756
757 spec.format = PA_SAMPLE_S16NE;
758 spec.rate = 44100;
759 spec.channels = 2;
760
761 stream = connect_playback_stream(NULL, loop, context, 0, NULL,
762 &spec, NULL);
763 if(stream)
764 {
765 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
766 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
767 pa_threaded_mainloop_wait(loop);
768 pa_operation_unref(o);
769
770 pa_stream_disconnect(stream);
771 pa_stream_unref(stream);
772 stream = NULL;
773 }
774
775 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
776 }
777 else
778 {
779 pa_sample_spec spec;
780 pa_stream *stream;
781
782 spec.format = PA_SAMPLE_S16NE;
783 spec.rate = 44100;
784 spec.channels = 1;
785
786 stream = connect_record_stream(NULL, loop, context, 0, NULL,
787 &spec, NULL);
788 if(stream)
789 {
790 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
791 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
792 pa_threaded_mainloop_wait(loop);
793 pa_operation_unref(o);
794
795 pa_stream_disconnect(stream);
796 pa_stream_unref(stream);
797 stream = NULL;
798 }
799
800 o = pa_context_get_source_info_list(context, source_device_callback, loop);
801 }
802 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
803 pa_threaded_mainloop_wait(loop);
804 pa_operation_unref(o);
805
806 pa_context_disconnect(context);
807 pa_context_unref(context);
808 }
809 pa_threaded_mainloop_unlock(loop);
810 pa_threaded_mainloop_stop(loop);
811 }
812 if(loop)
813 pa_threaded_mainloop_free(loop);
814 }
815
816
817 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
818 {
819 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
820 memset(data, 0, sizeof(*data));
821
822 if(!(data->loop = pa_threaded_mainloop_new()))
823 {
824 ERR("pa_threaded_mainloop_new() failed!\n");
825 goto out;
826 }
827 if(pa_threaded_mainloop_start(data->loop) < 0)
828 {
829 ERR("pa_threaded_mainloop_start() failed\n");
830 goto out;
831 }
832
833 pa_threaded_mainloop_lock(data->loop);
834 device->ExtraData = data;
835
836 data->context = connect_context(data->loop, AL_FALSE);
837 if(!data->context)
838 {
839 pa_threaded_mainloop_unlock(data->loop);
840 goto out;
841 }
842 pa_context_set_state_callback(data->context, context_state_callback2, device);
843
844 device->szDeviceName = strdup(device_name);
845
846 pa_threaded_mainloop_unlock(data->loop);
847 return ALC_TRUE;
848
849 out:
850 if(data->loop)
851 {
852 pa_threaded_mainloop_stop(data->loop);
853 pa_threaded_mainloop_free(data->loop);
854 }
855
856 device->ExtraData = NULL;
857 pa_xfree(data);
858 return ALC_FALSE;
859 } //}}}
860
861 static void pulse_close(ALCdevice *device) //{{{
862 {
863 pulse_data *data = device->ExtraData;
864
865 pa_threaded_mainloop_lock(data->loop);
866
867 if(data->stream)
868 {
869 pa_stream_disconnect(data->stream);
870 pa_stream_unref(data->stream);
871 }
872
873 pa_context_disconnect(data->context);
874 pa_context_unref(data->context);
875
876 pa_threaded_mainloop_unlock(data->loop);
877
878 pa_threaded_mainloop_stop(data->loop);
879 pa_threaded_mainloop_free(data->loop);
880
881 free(data->device_name);
882
883 device->ExtraData = NULL;
884 pa_xfree(data);
885 } //}}}
886 //}}}
887
888 // OpenAL {{{
889 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
890 {
891 char *pulse_name = NULL;
892 pa_sample_spec spec;
893 pa_stream *stream;
894 pulse_data *data;
895
896 if(!allDevNameMap)
897 probe_devices(AL_FALSE);
898
899 if(!device_name && numDevNames > 0)
900 {
901 device_name = allDevNameMap[0].name;
902 pulse_name = allDevNameMap[0].device_name;
903 }
904 else
905 {
906 ALuint i;
907
908 for(i = 0;i < numDevNames;i++)
909 {
910 if(strcmp(device_name, allDevNameMap[i].name) == 0)
911 {
912 pulse_name = allDevNameMap[i].device_name;
913 break;
914 }
915 }
916 if(i == numDevNames)
917 return ALC_INVALID_VALUE;
918 }
919
920 if(pulse_open(device, device_name) == ALC_FALSE)
921 return ALC_INVALID_VALUE;
922
923 data = device->ExtraData;
924
925 pa_threaded_mainloop_lock(data->loop);
926
927 spec.format = PA_SAMPLE_S16NE;
928 spec.rate = 44100;
929 spec.channels = 2;
930
931 stream = connect_playback_stream(pulse_name, data->loop, data->context, 0,
932 NULL, &spec, NULL);
933 if(!stream)
934 {
935 pa_threaded_mainloop_unlock(data->loop);
936 goto fail;
937 }
938
939 if(pa_stream_is_suspended(stream))
940 {
941 ERR("Device is suspended\n");
942 pa_stream_disconnect(stream);
943 pa_stream_unref(stream);
944 pa_threaded_mainloop_unlock(data->loop);
945 goto fail;
946 }
947 data->device_name = strdup(pa_stream_get_device_name(stream));
948
949 pa_stream_disconnect(stream);
950 pa_stream_unref(stream);
951
952 pa_threaded_mainloop_unlock(data->loop);
953
954 return ALC_NO_ERROR;
955
956 fail:
957 pulse_close(device);
958 return ALC_INVALID_VALUE;
959 } //}}}
960
961 static void pulse_close_playback(ALCdevice *device) //{{{
962 {
963 pulse_close(device);
964 } //}}}
965
966 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
967 {
968 pulse_data *data = device->ExtraData;
969 pa_stream_flags_t flags = 0;
970 pa_channel_map chanmap;
971
972 pa_threaded_mainloop_lock(data->loop);
973
974 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
975 {
976 pa_operation *o;
977 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
978 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
979 pa_threaded_mainloop_wait(data->loop);
980 pa_operation_unref(o);
981 }
982 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
983 flags |= PA_STREAM_FIX_RATE;
984
985 flags |= PA_STREAM_EARLY_REQUESTS;
986 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
987
988 switch(device->FmtType)
989 {
990 case DevFmtByte:
991 device->FmtType = DevFmtUByte;
992 /* fall-through */
993 case DevFmtUByte:
994 data->spec.format = PA_SAMPLE_U8;
995 break;
996 case DevFmtUShort:
997 device->FmtType = DevFmtShort;
998 /* fall-through */
999 case DevFmtShort:
1000 data->spec.format = PA_SAMPLE_S16NE;
1001 break;
1002 case DevFmtUInt:
1003 device->FmtType = DevFmtInt;
1004 /* fall-through */
1005 case DevFmtInt:
1006 data->spec.format = PA_SAMPLE_S32NE;
1007 break;
1008 case DevFmtFloat:
1009 data->spec.format = PA_SAMPLE_FLOAT32NE;
1010 break;
1011 }
1012 data->spec.rate = device->Frequency;
1013 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1014
1015 if(pa_sample_spec_valid(&data->spec) == 0)
1016 {
1017 ERR("Invalid sample format\n");
1018 pa_threaded_mainloop_unlock(data->loop);
1019 return ALC_FALSE;
1020 }
1021
1022 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1023 {
1024 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1025 pa_threaded_mainloop_unlock(data->loop);
1026 return ALC_FALSE;
1027 }
1028 SetDefaultWFXChannelOrder(device);
1029
1030 data->attr.prebuf = -1;
1031 data->attr.fragsize = -1;
1032 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1033 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1034 data->attr.maxlength = -1;
1035
1036 data->stream = connect_playback_stream(data->device_name, data->loop,
1037 data->context, flags, &data->attr,
1038 &data->spec, &chanmap);
1039 if(!data->stream)
1040 {
1041 pa_threaded_mainloop_unlock(data->loop);
1042 return ALC_FALSE;
1043 }
1044
1045 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1046
1047 data->spec = *(pa_stream_get_sample_spec(data->stream));
1048 if(device->Frequency != data->spec.rate)
1049 {
1050 size_t frame_size = pa_frame_size(&data->spec);
1051 pa_operation *o;
1052
1053 /* Server updated our playback rate, so modify the buffer attribs
1054 * accordingly. */
1055 data->attr.minreq = (ALuint64)(data->attr.minreq/frame_size) *
1056 data->spec.rate / device->Frequency * frame_size;
1057 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1058
1059 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1060 stream_success_callback, device);
1061 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1062 pa_threaded_mainloop_wait(data->loop);
1063 pa_operation_unref(o);
1064
1065 device->Frequency = data->spec.rate;
1066 }
1067
1068 #if PA_CHECK_VERSION(0,9,15)
1069 if(pa_stream_set_buffer_attr_callback)
1070 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1071 #endif
1072 pa_stream_set_moved_callback(data->stream, stream_device_callback, device);
1073 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1074 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1075
1076 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1077 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1078 device->NumUpdates = data->attr.tlength / data->attr.minreq;
1079 if(device->NumUpdates <= 1)
1080 {
1081 pa_operation *o;
1082
1083 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1084
1085 /* Server gave a comparatively large minreq, so modify the tlength. */
1086 device->NumUpdates = 2;
1087 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1088
1089 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1090 stream_success_callback, device);
1091 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1092 pa_threaded_mainloop_wait(data->loop);
1093 pa_operation_unref(o);
1094 }
1095
1096 data->thread = StartThread(PulseProc, device);
1097 if(!data->thread)
1098 {
1099 #if PA_CHECK_VERSION(0,9,15)
1100 if(pa_stream_set_buffer_attr_callback)
1101 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1102 #endif
1103 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1104 pa_stream_set_write_callback(data->stream, NULL, NULL);
1105 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1106 pa_stream_disconnect(data->stream);
1107 pa_stream_unref(data->stream);
1108 data->stream = NULL;
1109
1110 pa_threaded_mainloop_unlock(data->loop);
1111 return ALC_FALSE;
1112 }
1113
1114 pa_threaded_mainloop_unlock(data->loop);
1115 return ALC_TRUE;
1116 } //}}}
1117
1118 static void pulse_stop_playback(ALCdevice *device) //{{{
1119 {
1120 pulse_data *data = device->ExtraData;
1121
1122 if(!data->stream)
1123 return;
1124
1125 data->killNow = AL_TRUE;
1126 if(data->thread)
1127 {
1128 pa_threaded_mainloop_signal(data->loop, 0);
1129 StopThread(data->thread);
1130 data->thread = NULL;
1131 }
1132 data->killNow = AL_FALSE;
1133
1134 pa_threaded_mainloop_lock(data->loop);
1135
1136 #if PA_CHECK_VERSION(0,9,15)
1137 if(pa_stream_set_buffer_attr_callback)
1138 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1139 #endif
1140 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1141 pa_stream_set_write_callback(data->stream, NULL, NULL);
1142 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1143 pa_stream_disconnect(data->stream);
1144 pa_stream_unref(data->stream);
1145 data->stream = NULL;
1146
1147 pa_threaded_mainloop_unlock(data->loop);
1148 } //}}}
1149
1150
1151 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1152 {
1153 char *pulse_name = NULL;
1154 pulse_data *data;
1155 pa_stream_flags_t flags = 0;
1156 pa_channel_map chanmap;
1157 ALuint samples;
1158
1159 if(!allCaptureDevNameMap)
1160 probe_devices(AL_TRUE);
1161
1162 if(!device_name && numCaptureDevNames > 0)
1163 {
1164 device_name = allCaptureDevNameMap[0].name;
1165 pulse_name = allCaptureDevNameMap[0].device_name;
1166 }
1167 else
1168 {
1169 ALuint i;
1170 for(i = 0;i < numCaptureDevNames;i++)
1171 {
1172 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1173 {
1174 pulse_name = allCaptureDevNameMap[i].device_name;
1175 break;
1176 }
1177 }
1178 if(i == numCaptureDevNames)
1179 return ALC_INVALID_VALUE;
1180 }
1181
1182 if(pulse_open(device, device_name) == ALC_FALSE)
1183 return ALC_INVALID_VALUE;
1184
1185 data = device->ExtraData;
1186 pa_threaded_mainloop_lock(data->loop);
1187
1188 data->spec.rate = device->Frequency;
1189 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1190
1191 switch(device->FmtType)
1192 {
1193 case DevFmtUByte:
1194 data->spec.format = PA_SAMPLE_U8;
1195 break;
1196 case DevFmtShort:
1197 data->spec.format = PA_SAMPLE_S16NE;
1198 break;
1199 case DevFmtInt:
1200 data->spec.format = PA_SAMPLE_S32NE;
1201 break;
1202 case DevFmtFloat:
1203 data->spec.format = PA_SAMPLE_FLOAT32NE;
1204 break;
1205 case DevFmtByte:
1206 case DevFmtUShort:
1207 case DevFmtUInt:
1208 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1209 pa_threaded_mainloop_unlock(data->loop);
1210 goto fail;
1211 }
1212
1213 if(pa_sample_spec_valid(&data->spec) == 0)
1214 {
1215 ERR("Invalid sample format\n");
1216 pa_threaded_mainloop_unlock(data->loop);
1217 goto fail;
1218 }
1219
1220 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1221 {
1222 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1223 pa_threaded_mainloop_unlock(data->loop);
1224 goto fail;
1225 }
1226
1227 samples = device->UpdateSize * device->NumUpdates;
1228 samples = maxu(samples, 100 * device->Frequency / 1000);
1229
1230 data->attr.minreq = -1;
1231 data->attr.prebuf = -1;
1232 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1233 data->attr.tlength = -1;
1234 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1235 pa_frame_size(&data->spec);
1236
1237 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1238 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1239 flags, &data->attr, &data->spec,
1240 &chanmap);
1241 if(!data->stream)
1242 {
1243 pa_threaded_mainloop_unlock(data->loop);
1244 goto fail;
1245 }
1246
1247 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1248
1249 pa_threaded_mainloop_unlock(data->loop);
1250 return ALC_NO_ERROR;
1251
1252 fail:
1253 pulse_close(device);
1254 return ALC_INVALID_VALUE;
1255 } //}}}
1256
1257 static void pulse_close_capture(ALCdevice *device) //{{{
1258 {
1259 pulse_close(device);
1260 } //}}}
1261
1262 static void pulse_start_capture(ALCdevice *device) //{{{
1263 {
1264 pulse_data *data = device->ExtraData;
1265 pa_operation *o;
1266
1267 pa_threaded_mainloop_lock(data->loop);
1268 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1269 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1270 pa_threaded_mainloop_wait(data->loop);
1271 pa_operation_unref(o);
1272 pa_threaded_mainloop_unlock(data->loop);
1273 } //}}}
1274
1275 static void pulse_stop_capture(ALCdevice *device) //{{{
1276 {
1277 pulse_data *data = device->ExtraData;
1278 pa_operation *o;
1279
1280 pa_threaded_mainloop_lock(data->loop);
1281 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1282 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1283 pa_threaded_mainloop_wait(data->loop);
1284 pa_operation_unref(o);
1285 pa_threaded_mainloop_unlock(data->loop);
1286 } //}}}
1287
1288 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1289 {
1290 pulse_data *data = device->ExtraData;
1291 ALCuint todo = samples * pa_frame_size(&data->spec);
1292
1293 pa_threaded_mainloop_lock(data->loop);
1294 /* Capture is done in fragment-sized chunks, so we loop until we get all
1295 * that's available */
1296 data->last_readable -= todo;
1297 while(todo > 0)
1298 {
1299 size_t rem = todo;
1300
1301 if(data->cap_len == 0)
1302 {
1303 pa_stream_state_t state;
1304
1305 state = pa_stream_get_state(data->stream);
1306 if(!PA_STREAM_IS_GOOD(state))
1307 {
1308 aluHandleDisconnect(device);
1309 break;
1310 }
1311 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1312 {
1313 ERR("pa_stream_peek() failed: %s\n",
1314 pa_strerror(pa_context_errno(data->context)));
1315 aluHandleDisconnect(device);
1316 break;
1317 }
1318 data->cap_remain = data->cap_len;
1319 }
1320 if(rem > data->cap_remain)
1321 rem = data->cap_remain;
1322
1323 memcpy(buffer, data->cap_store, rem);
1324
1325 buffer = (ALbyte*)buffer + rem;
1326 todo -= rem;
1327
1328 data->cap_store = (ALbyte*)data->cap_store + rem;
1329 data->cap_remain -= rem;
1330 if(data->cap_remain == 0)
1331 {
1332 pa_stream_drop(data->stream);
1333 data->cap_len = 0;
1334 }
1335 }
1336 if(todo > 0)
1337 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1338 pa_threaded_mainloop_unlock(data->loop);
1339
1340 return ALC_NO_ERROR;
1341 } //}}}
1342
1343 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1344 {
1345 pulse_data *data = device->ExtraData;
1346 size_t readable = data->cap_remain;
1347
1348 pa_threaded_mainloop_lock(data->loop);
1349 if(device->Connected)
1350 {
1351 ssize_t got = pa_stream_readable_size(data->stream);
1352 if(got > 0 && (size_t)got > data->cap_len)
1353 readable += got - data->cap_len;
1354 }
1355 pa_threaded_mainloop_unlock(data->loop);
1356
1357 if(data->last_readable < readable)
1358 data->last_readable = readable;
1359 return data->last_readable / pa_frame_size(&data->spec);
1360 } //}}}
1361
1362
1363 static const BackendFuncs pulse_funcs = { //{{{
1364 pulse_open_playback,
1365 pulse_close_playback,
1366 pulse_reset_playback,
1367 pulse_stop_playback,
1368 pulse_open_capture,
1369 pulse_close_capture,
1370 pulse_start_capture,
1371 pulse_stop_capture,
1372 pulse_capture_samples,
1373 pulse_available_samples
1374 }; //}}}
1375
1376 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1377 {
1378 ALCboolean ret = ALC_FALSE;
1379
1380 if(pulse_load())
1381 {
1382 pa_threaded_mainloop *loop;
1383
1384 pulse_ctx_flags = 0;
1385 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1386 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1387
1388 if((loop=pa_threaded_mainloop_new()) &&
1389 pa_threaded_mainloop_start(loop) >= 0)
1390 {
1391 pa_context *context;
1392
1393 pa_threaded_mainloop_lock(loop);
1394 context = connect_context(loop, AL_TRUE);
1395 if(context)
1396 {
1397 ret = ALC_TRUE;
1398
1399 pa_context_disconnect(context);
1400 pa_context_unref(context);
1401 }
1402 pa_threaded_mainloop_unlock(loop);
1403 pa_threaded_mainloop_stop(loop);
1404 }
1405 if(loop)
1406 pa_threaded_mainloop_free(loop);
1407 }
1408
1409 if(ret != ALC_FALSE)
1410 *func_list = pulse_funcs;
1411 return ret;
1412 } //}}}
1413
1414 void alc_pulse_deinit(void) //{{{
1415 {
1416 ALuint i;
1417
1418 for(i = 0;i < numDevNames;++i)
1419 {
1420 free(allDevNameMap[i].name);
1421 free(allDevNameMap[i].device_name);
1422 }
1423 free(allDevNameMap);
1424 allDevNameMap = NULL;
1425 numDevNames = 0;
1426
1427 for(i = 0;i < numCaptureDevNames;++i)
1428 {
1429 free(allCaptureDevNameMap[i].name);
1430 free(allCaptureDevNameMap[i].device_name);
1431 }
1432 free(allCaptureDevNameMap);
1433 allCaptureDevNameMap = NULL;
1434 numCaptureDevNames = 0;
1435
1436 #ifdef HAVE_DYNLOAD
1437 if(pa_handle)
1438 CloseLib(pa_handle);
1439 pa_handle = NULL;
1440 #endif
1441 } //}}}
1442
1443 void alc_pulse_probe(enum DevProbe type) //{{{
1444 {
1445 ALuint i;
1446
1447 switch(type)
1448 {
1449 case ALL_DEVICE_PROBE:
1450 for(i = 0;i < numDevNames;++i)
1451 {
1452 free(allDevNameMap[i].name);
1453 free(allDevNameMap[i].device_name);
1454 }
1455 free(allDevNameMap);
1456 allDevNameMap = NULL;
1457 numDevNames = 0;
1458
1459 probe_devices(AL_FALSE);
1460
1461 for(i = 0;i < numDevNames;i++)
1462 AppendAllDeviceList(allDevNameMap[i].name);
1463 break;
1464
1465 case CAPTURE_DEVICE_PROBE:
1466 for(i = 0;i < numCaptureDevNames;++i)
1467 {
1468 free(allCaptureDevNameMap[i].name);
1469 free(allCaptureDevNameMap[i].device_name);
1470 }
1471 free(allCaptureDevNameMap);
1472 allCaptureDevNameMap = NULL;
1473 numCaptureDevNames = 0;
1474
1475 probe_devices(AL_TRUE);
1476
1477 for(i = 0;i < numCaptureDevNames;i++)
1478 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1479 break;
1480 }
1481 } //}}}
1482 //}}}
Software OpenAL implementation