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Don't accept the pulseaudio default name for capture
[openal-soft.git] / Alc / backends / pulseaudio.c
blob6100d59f89adb2dd04902684a1d2d490c5cf6d4b
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
4 * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 * Or go to http://www.gnu.org/copyleft/lgpl.html
20 */
21
22 #include "config.h"
23
24 #include "alMain.h"
25
26 #include <pulse/pulseaudio.h>
27
28 #if PA_API_VERSION == 11
29 #define PA_STREAM_ADJUST_LATENCY 0x2000U
30 #define PA_STREAM_EARLY_REQUESTS 0x4000U
31 static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
32 {
33 return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
34 }
35 static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
36 {
37 return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
38 x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
39 }
40 #define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
41 #define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
42 #elif PA_API_VERSION != 12
43 #error Invalid PulseAudio API version
44 #endif
45
46 #ifndef PA_CHECK_VERSION
47 #define PA_CHECK_VERSION(major,minor,micro) \
48 ((PA_MAJOR > (major)) || \
49 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
50 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
51 #endif
52
53 static void *pa_handle;
54 #ifdef HAVE_DYNLOAD
55 #define MAKE_FUNC(x) static typeof(x) * p##x
56 MAKE_FUNC(pa_context_unref);
57 MAKE_FUNC(pa_sample_spec_valid);
58 MAKE_FUNC(pa_stream_drop);
59 MAKE_FUNC(pa_strerror);
60 MAKE_FUNC(pa_context_get_state);
61 MAKE_FUNC(pa_stream_get_state);
62 MAKE_FUNC(pa_threaded_mainloop_signal);
63 MAKE_FUNC(pa_stream_peek);
64 MAKE_FUNC(pa_threaded_mainloop_wait);
65 MAKE_FUNC(pa_threaded_mainloop_unlock);
66 MAKE_FUNC(pa_threaded_mainloop_in_thread);
67 MAKE_FUNC(pa_context_new);
68 MAKE_FUNC(pa_threaded_mainloop_stop);
69 MAKE_FUNC(pa_context_disconnect);
70 MAKE_FUNC(pa_threaded_mainloop_start);
71 MAKE_FUNC(pa_threaded_mainloop_get_api);
72 MAKE_FUNC(pa_context_set_state_callback);
73 MAKE_FUNC(pa_stream_write);
74 MAKE_FUNC(pa_xfree);
75 MAKE_FUNC(pa_stream_connect_record);
76 MAKE_FUNC(pa_stream_connect_playback);
77 MAKE_FUNC(pa_stream_readable_size);
78 MAKE_FUNC(pa_stream_writable_size);
79 MAKE_FUNC(pa_stream_cork);
80 MAKE_FUNC(pa_stream_is_suspended);
81 MAKE_FUNC(pa_stream_get_device_name);
82 MAKE_FUNC(pa_path_get_filename);
83 MAKE_FUNC(pa_get_binary_name);
84 MAKE_FUNC(pa_threaded_mainloop_free);
85 MAKE_FUNC(pa_context_errno);
86 MAKE_FUNC(pa_xmalloc);
87 MAKE_FUNC(pa_stream_unref);
88 MAKE_FUNC(pa_threaded_mainloop_accept);
89 MAKE_FUNC(pa_stream_set_write_callback);
90 MAKE_FUNC(pa_threaded_mainloop_new);
91 MAKE_FUNC(pa_context_connect);
92 MAKE_FUNC(pa_stream_set_buffer_attr);
93 MAKE_FUNC(pa_stream_get_buffer_attr);
94 MAKE_FUNC(pa_stream_get_sample_spec);
95 MAKE_FUNC(pa_stream_get_time);
96 MAKE_FUNC(pa_stream_set_read_callback);
97 MAKE_FUNC(pa_stream_set_state_callback);
98 MAKE_FUNC(pa_stream_set_moved_callback);
99 MAKE_FUNC(pa_stream_set_underflow_callback);
100 MAKE_FUNC(pa_stream_new);
101 MAKE_FUNC(pa_stream_disconnect);
102 MAKE_FUNC(pa_threaded_mainloop_lock);
103 MAKE_FUNC(pa_channel_map_init_auto);
104 MAKE_FUNC(pa_channel_map_parse);
105 MAKE_FUNC(pa_channel_map_snprint);
106 MAKE_FUNC(pa_channel_map_equal);
107 MAKE_FUNC(pa_context_get_server_info);
108 MAKE_FUNC(pa_context_get_sink_info_by_name);
109 MAKE_FUNC(pa_context_get_sink_info_list);
110 MAKE_FUNC(pa_context_get_source_info_list);
111 MAKE_FUNC(pa_operation_get_state);
112 MAKE_FUNC(pa_operation_unref);
113 #if PA_CHECK_VERSION(0,9,15)
114 MAKE_FUNC(pa_channel_map_superset);
115 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
116 #endif
117 #if PA_CHECK_VERSION(0,9,16)
118 MAKE_FUNC(pa_stream_begin_write);
119 #endif
120 #undef MAKE_FUNC
121
122 #define pa_context_unref ppa_context_unref
123 #define pa_sample_spec_valid ppa_sample_spec_valid
124 #define pa_stream_drop ppa_stream_drop
125 #define pa_strerror ppa_strerror
126 #define pa_context_get_state ppa_context_get_state
127 #define pa_stream_get_state ppa_stream_get_state
128 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
129 #define pa_stream_peek ppa_stream_peek
130 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
131 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
132 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
133 #define pa_context_new ppa_context_new
134 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
135 #define pa_context_disconnect ppa_context_disconnect
136 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
137 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
138 #define pa_context_set_state_callback ppa_context_set_state_callback
139 #define pa_stream_write ppa_stream_write
140 #define pa_xfree ppa_xfree
141 #define pa_stream_connect_record ppa_stream_connect_record
142 #define pa_stream_connect_playback ppa_stream_connect_playback
143 #define pa_stream_readable_size ppa_stream_readable_size
144 #define pa_stream_writable_size ppa_stream_writable_size
145 #define pa_stream_cork ppa_stream_cork
146 #define pa_stream_is_suspended ppa_stream_is_suspended
147 #define pa_stream_get_device_name ppa_stream_get_device_name
148 #define pa_path_get_filename ppa_path_get_filename
149 #define pa_get_binary_name ppa_get_binary_name
150 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
151 #define pa_context_errno ppa_context_errno
152 #define pa_xmalloc ppa_xmalloc
153 #define pa_stream_unref ppa_stream_unref
154 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
155 #define pa_stream_set_write_callback ppa_stream_set_write_callback
156 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
157 #define pa_context_connect ppa_context_connect
158 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
159 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
160 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
161 #define pa_stream_get_time ppa_stream_get_time
162 #define pa_stream_set_read_callback ppa_stream_set_read_callback
163 #define pa_stream_set_state_callback ppa_stream_set_state_callback
164 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
165 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
166 #define pa_stream_new ppa_stream_new
167 #define pa_stream_disconnect ppa_stream_disconnect
168 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
169 #define pa_channel_map_init_auto ppa_channel_map_init_auto
170 #define pa_channel_map_parse ppa_channel_map_parse
171 #define pa_channel_map_snprint ppa_channel_map_snprint
172 #define pa_channel_map_equal ppa_channel_map_equal
173 #define pa_context_get_server_info ppa_context_get_server_info
174 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
175 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
176 #define pa_context_get_source_info_list ppa_context_get_source_info_list
177 #define pa_operation_get_state ppa_operation_get_state
178 #define pa_operation_unref ppa_operation_unref
179 #if PA_CHECK_VERSION(0,9,15)
180 #define pa_channel_map_superset ppa_channel_map_superset
181 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
182 #endif
183 #if PA_CHECK_VERSION(0,9,16)
184 #define pa_stream_begin_write ppa_stream_begin_write
185 #endif
186
187 #endif
188
189 #ifndef PATH_MAX
190 #define PATH_MAX 4096
191 #endif
192
193 typedef struct {
194 char *device_name;
195
196 ALCuint samples;
197 ALCuint frame_size;
198
199 RingBuffer *ring;
200
201 pa_buffer_attr attr;
202 pa_sample_spec spec;
203
204 pa_threaded_mainloop *loop;
205
206 ALvoid *thread;
207 volatile ALboolean killNow;
208
209 pa_stream *stream;
210 pa_context *context;
211 } pulse_data;
212
213 typedef struct {
214 char *name;
215 char *device_name;
216 } DevMap;
217
218
219 static const ALCchar pulse_device[] = "PulseAudio Default";
220 static DevMap *allDevNameMap;
221 static ALuint numDevNames;
222 static DevMap *allCaptureDevNameMap;
223 static ALuint numCaptureDevNames;
224 static pa_context_flags_t pulse_ctx_flags;
225
226
227 static void context_state_callback(pa_context *context, void *pdata)
228 {
229 pa_threaded_mainloop *loop = pdata;
230 pa_context_state_t state;
231
232 state = pa_context_get_state(context);
233 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
234 pa_threaded_mainloop_signal(loop, 0);
235 }
236
237 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
238 {
239 const char *name = "OpenAL Soft";
240 char path_name[PATH_MAX];
241 pa_context_state_t state;
242 pa_context *context;
243 int err;
244
245 if(pa_get_binary_name(path_name, sizeof(path_name)))
246 name = pa_path_get_filename(path_name);
247
248 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
249 if(!context)
250 {
251 ERR("pa_context_new() failed\n");
252 return NULL;
253 }
254
255 pa_context_set_state_callback(context, context_state_callback, loop);
256
257 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
258 {
259 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
260 {
261 if(!PA_CONTEXT_IS_GOOD(state))
262 {
263 err = pa_context_errno(context);
264 if(err > 0) err = -err;
265 break;
266 }
267
268 pa_threaded_mainloop_wait(loop);
269 }
270 }
271 pa_context_set_state_callback(context, NULL, NULL);
272
273 if(err < 0)
274 {
275 if(!silent)
276 ERR("Context did not connect: %s\n", pa_strerror(err));
277 pa_context_unref(context);
278 return NULL;
279 }
280
281 return context;
282 }
283
284
285 static ALCboolean pulse_load(void) //{{{
286 {
287 ALCboolean ret = ALC_TRUE;
288 if(!pa_handle)
289 {
290 #ifdef HAVE_DYNLOAD
291
292 #ifdef _WIN32
293 #define PALIB "libpulse-0.dll"
294 #elif defined(__APPLE__) && defined(__MACH__)
295 #define PALIB "libpulse.0.dylib"
296 #else
297 #define PALIB "libpulse.so.0"
298 #endif
299 pa_handle = LoadLib(PALIB);
300 if(!pa_handle)
301 return ALC_FALSE;
302
303 #define LOAD_FUNC(x) do { \
304 p##x = GetSymbol(pa_handle, #x); \
305 if(!(p##x)) { \
306 ret = ALC_FALSE; \
307 } \
308 } while(0)
309 LOAD_FUNC(pa_context_unref);
310 LOAD_FUNC(pa_sample_spec_valid);
311 LOAD_FUNC(pa_stream_drop);
312 LOAD_FUNC(pa_strerror);
313 LOAD_FUNC(pa_context_get_state);
314 LOAD_FUNC(pa_stream_get_state);
315 LOAD_FUNC(pa_threaded_mainloop_signal);
316 LOAD_FUNC(pa_stream_peek);
317 LOAD_FUNC(pa_threaded_mainloop_wait);
318 LOAD_FUNC(pa_threaded_mainloop_unlock);
319 LOAD_FUNC(pa_threaded_mainloop_in_thread);
320 LOAD_FUNC(pa_context_new);
321 LOAD_FUNC(pa_threaded_mainloop_stop);
322 LOAD_FUNC(pa_context_disconnect);
323 LOAD_FUNC(pa_threaded_mainloop_start);
324 LOAD_FUNC(pa_threaded_mainloop_get_api);
325 LOAD_FUNC(pa_context_set_state_callback);
326 LOAD_FUNC(pa_stream_write);
327 LOAD_FUNC(pa_xfree);
328 LOAD_FUNC(pa_stream_connect_record);
329 LOAD_FUNC(pa_stream_connect_playback);
330 LOAD_FUNC(pa_stream_readable_size);
331 LOAD_FUNC(pa_stream_writable_size);
332 LOAD_FUNC(pa_stream_cork);
333 LOAD_FUNC(pa_stream_is_suspended);
334 LOAD_FUNC(pa_stream_get_device_name);
335 LOAD_FUNC(pa_path_get_filename);
336 LOAD_FUNC(pa_get_binary_name);
337 LOAD_FUNC(pa_threaded_mainloop_free);
338 LOAD_FUNC(pa_context_errno);
339 LOAD_FUNC(pa_xmalloc);
340 LOAD_FUNC(pa_stream_unref);
341 LOAD_FUNC(pa_threaded_mainloop_accept);
342 LOAD_FUNC(pa_stream_set_write_callback);
343 LOAD_FUNC(pa_threaded_mainloop_new);
344 LOAD_FUNC(pa_context_connect);
345 LOAD_FUNC(pa_stream_set_buffer_attr);
346 LOAD_FUNC(pa_stream_get_buffer_attr);
347 LOAD_FUNC(pa_stream_get_sample_spec);
348 LOAD_FUNC(pa_stream_get_time);
349 LOAD_FUNC(pa_stream_set_read_callback);
350 LOAD_FUNC(pa_stream_set_state_callback);
351 LOAD_FUNC(pa_stream_set_moved_callback);
352 LOAD_FUNC(pa_stream_set_underflow_callback);
353 LOAD_FUNC(pa_stream_new);
354 LOAD_FUNC(pa_stream_disconnect);
355 LOAD_FUNC(pa_threaded_mainloop_lock);
356 LOAD_FUNC(pa_channel_map_init_auto);
357 LOAD_FUNC(pa_channel_map_parse);
358 LOAD_FUNC(pa_channel_map_snprint);
359 LOAD_FUNC(pa_channel_map_equal);
360 LOAD_FUNC(pa_context_get_server_info);
361 LOAD_FUNC(pa_context_get_sink_info_by_name);
362 LOAD_FUNC(pa_context_get_sink_info_list);
363 LOAD_FUNC(pa_context_get_source_info_list);
364 LOAD_FUNC(pa_operation_get_state);
365 LOAD_FUNC(pa_operation_unref);
366 #undef LOAD_FUNC
367 #define LOAD_OPTIONAL_FUNC(x) do { \
368 p##x = GetSymbol(pa_handle, #x); \
369 } while(0)
370 #if PA_CHECK_VERSION(0,9,15)
371 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
372 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
373 #endif
374 #if PA_CHECK_VERSION(0,9,16)
375 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
376 #endif
377 #undef LOAD_OPTIONAL_FUNC
378
379 #else /* HAVE_DYNLOAD */
380 pa_handle = (void*)0xDEADBEEF;
381 #endif
382
383 if(ret == ALC_FALSE)
384 {
385 #ifdef HAVE_DYNLOAD
386 CloseLib(pa_handle);
387 #endif
388 pa_handle = NULL;
389 }
390 }
391 return ret;
392 } //}}}
393
394 // PulseAudio Event Callbacks //{{{
395 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
396 {
397 pa_threaded_mainloop *loop = pdata;
398 pa_stream_state_t state;
399
400 state = pa_stream_get_state(stream);
401 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
402 pa_threaded_mainloop_signal(loop, 0);
403 }//}}}
404
405 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
406 {
407 ALCdevice *Device = pdata;
408 pulse_data *data = Device->ExtraData;
409 (void)stream;
410
411 pa_threaded_mainloop_signal(data->loop, 0);
412 }//}}}
413
414 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
415 {
416 const pa_buffer_attr *attr;
417 (void)pdata;
418
419 attr = pa_stream_get_buffer_attr(stream);
420 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", attr->minreq, attr->tlength);
421 }//}}}
422
423 static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
424 {
425 ALCdevice *Device = pdata;
426 pulse_data *data = Device->ExtraData;
427
428 free(data->device_name);
429 data->device_name = strdup(pa_stream_get_device_name(stream));
430 }//}}}
431
432 static void context_state_callback2(pa_context *context, void *pdata) //{{{
433 {
434 ALCdevice *Device = pdata;
435 pulse_data *data = Device->ExtraData;
436
437 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
438 {
439 ERR("Received context failure!\n");
440 aluHandleDisconnect(Device);
441 }
442 pa_threaded_mainloop_signal(data->loop, 0);
443 }//}}}
444
445 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
446 {
447 ALCdevice *Device = pdata;
448 pulse_data *data = Device->ExtraData;
449
450 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
451 {
452 ERR("Received stream failure!\n");
453 aluHandleDisconnect(Device);
454 }
455 pa_threaded_mainloop_signal(data->loop, 0);
456 }//}}}
457
458 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
459 {
460 ALCdevice *Device = pdata;
461 pulse_data *data = Device->ExtraData;
462 (void)stream;
463 (void)success;
464
465 pa_threaded_mainloop_signal(data->loop, 0);
466 }//}}}
467
468 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
469 {
470 ALCdevice *device = pdata;
471 pulse_data *data = device->ExtraData;
472 char chanmap_str[256] = "";
473 const struct {
474 const char *str;
475 enum DevFmtChannels chans;
476 } chanmaps[] = {
477 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
478 DevFmtX71 },
479 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
480 DevFmtX61 },
481 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
482 DevFmtX51 },
483 { "front-left,front-right,front-center,lfe,side-left,side-right",
484 DevFmtX51Side },
485 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
486 { "front-left,front-right", DevFmtStereo },
487 { "mono", DevFmtMono },
488 { NULL, 0 }
489 };
490 int i;
491 (void)context;
492
493 if(eol)
494 {
495 pa_threaded_mainloop_signal(data->loop, 0);
496 return;
497 }
498
499 for(i = 0;chanmaps[i].str;i++)
500 {
501 pa_channel_map map;
502 if(!pa_channel_map_parse(&map, chanmaps[i].str))
503 continue;
504
505 if(pa_channel_map_equal(&info->channel_map, &map)
506 #if PA_CHECK_VERSION(0,9,15)
507 || (pa_channel_map_superset &&
508 pa_channel_map_superset(&info->channel_map, &map))
509 #endif
510 )
511 {
512 device->FmtChans = chanmaps[i].chans;
513 return;
514 }
515 }
516
517 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
518 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
519 }//}}}
520
521 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
522 {
523 pa_threaded_mainloop *loop = pdata;
524 char str[1024];
525 void *temp;
526 int count;
527 ALuint i;
528
529 (void)context;
530
531 if(eol)
532 {
533 pa_threaded_mainloop_signal(loop, 0);
534 return;
535 }
536
537 count = 0;
538 do {
539 if(count == 0)
540 snprintf(str, sizeof(str), "%s", info->description);
541 else
542 snprintf(str, sizeof(str), "%s #%d", info->description, count+1);
543 count++;
544
545 for(i = 0;i < numDevNames;i++)
546 {
547 if(strcmp(str, allDevNameMap[i].name) == 0)
548 break;
549 }
550 } while(i != numDevNames);
551
552 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
553 if(temp)
554 {
555 allDevNameMap = temp;
556 allDevNameMap[numDevNames].name = strdup(str);
557 allDevNameMap[numDevNames].device_name = strdup(info->name);
558 numDevNames++;
559 }
560 }//}}}
561
562 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
563 {
564 pa_threaded_mainloop *loop = pdata;
565 char str[1024];
566 void *temp;
567 int count;
568 ALuint i;
569
570 (void)context;
571
572 if(eol)
573 {
574 pa_threaded_mainloop_signal(loop, 0);
575 return;
576 }
577
578 count = 0;
579 do {
580 if(count == 0)
581 snprintf(str, sizeof(str), "%s", info->description);
582 else
583 snprintf(str, sizeof(str), "%s #%d", info->description, count+1);
584 count++;
585
586 for(i = 0;i < numCaptureDevNames;i++)
587 {
588 if(strcmp(str, allCaptureDevNameMap[i].name) == 0)
589 break;
590 }
591 } while(i != numCaptureDevNames);
592
593 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
594 if(temp)
595 {
596 allCaptureDevNameMap = temp;
597 allCaptureDevNameMap[numCaptureDevNames].name = strdup(str);
598 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
599 numCaptureDevNames++;
600 }
601 }//}}}
602 //}}}
603
604 // PulseAudio I/O Callbacks //{{{
605 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
606 {
607 ALCdevice *Device = pdata;
608 pulse_data *data = Device->ExtraData;
609 (void)stream;
610 (void)len;
611
612 pa_threaded_mainloop_signal(data->loop, 0);
613 } //}}}
614 //}}}
615
616 static ALuint PulseProc(ALvoid *param)
617 {
618 ALCdevice *Device = param;
619 pulse_data *data = Device->ExtraData;
620 ssize_t len;
621
622 SetRTPriority();
623
624 pa_threaded_mainloop_lock(data->loop);
625 do {
626 len = (Device->Connected ? pa_stream_writable_size(data->stream) : 0);
627 len -= len%(Device->UpdateSize*data->frame_size);
628 if(len == 0)
629 {
630 pa_threaded_mainloop_wait(data->loop);
631 continue;
632 }
633
634 while(len > 0)
635 {
636 size_t newlen = len;
637 void *buf;
638 pa_free_cb_t free_func = NULL;
639
640 #if PA_CHECK_VERSION(0,9,16)
641 if(!pa_stream_begin_write ||
642 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
643 #endif
644 {
645 buf = pa_xmalloc(newlen);
646 free_func = pa_xfree;
647 }
648 pa_threaded_mainloop_unlock(data->loop);
649
650 aluMixData(Device, buf, newlen/data->frame_size);
651
652 pa_threaded_mainloop_lock(data->loop);
653 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
654 len -= newlen;
655 }
656 } while(Device->Connected && !data->killNow);
657 pa_threaded_mainloop_unlock(data->loop);
658
659 return 0;
660 }
661
662 static pa_stream *connect_playback_stream(ALCdevice *device,
663 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
664 pa_channel_map *chanmap)
665 {
666 pulse_data *data = device->ExtraData;
667 pa_stream_state_t state;
668 pa_stream *stream;
669
670 stream = pa_stream_new(data->context, "Playback Stream", spec, chanmap);
671 if(!stream)
672 {
673 ERR("pa_stream_new() failed: %s\n",
674 pa_strerror(pa_context_errno(data->context)));
675 return NULL;
676 }
677
678 pa_stream_set_state_callback(stream, stream_state_callback, data->loop);
679
680 if(pa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0)
681 {
682 ERR("Stream did not connect: %s\n",
683 pa_strerror(pa_context_errno(data->context)));
684 pa_stream_unref(stream);
685 return NULL;
686 }
687
688 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
689 {
690 if(!PA_STREAM_IS_GOOD(state))
691 {
692 ERR("Stream did not get ready: %s\n",
693 pa_strerror(pa_context_errno(data->context)));
694 pa_stream_unref(stream);
695 return NULL;
696 }
697
698 pa_threaded_mainloop_wait(data->loop);
699 }
700 pa_stream_set_state_callback(stream, NULL, NULL);
701
702 return stream;
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 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
727 else
728 o = pa_context_get_source_info_list(context, source_device_callback, loop);
729 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
730 pa_threaded_mainloop_wait(loop);
731 pa_operation_unref(o);
732
733 pa_context_disconnect(context);
734 pa_context_unref(context);
735 }
736 pa_threaded_mainloop_unlock(loop);
737 pa_threaded_mainloop_stop(loop);
738 }
739 if(loop)
740 pa_threaded_mainloop_free(loop);
741 }
742
743
744 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
745 {
746 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
747 memset(data, 0, sizeof(*data));
748
749 if(!(data->loop = pa_threaded_mainloop_new()))
750 {
751 ERR("pa_threaded_mainloop_new() failed!\n");
752 goto out;
753 }
754 if(pa_threaded_mainloop_start(data->loop) < 0)
755 {
756 ERR("pa_threaded_mainloop_start() failed\n");
757 goto out;
758 }
759
760 pa_threaded_mainloop_lock(data->loop);
761 device->ExtraData = data;
762
763 data->context = connect_context(data->loop, AL_FALSE);
764 if(!data->context)
765 {
766 pa_threaded_mainloop_unlock(data->loop);
767 goto out;
768 }
769 pa_context_set_state_callback(data->context, context_state_callback2, device);
770
771 device->szDeviceName = strdup(device_name);
772
773 pa_threaded_mainloop_unlock(data->loop);
774 return ALC_TRUE;
775
776 out:
777 if(data->loop)
778 {
779 pa_threaded_mainloop_stop(data->loop);
780 pa_threaded_mainloop_free(data->loop);
781 }
782
783 device->ExtraData = NULL;
784 pa_xfree(data);
785 return ALC_FALSE;
786 } //}}}
787
788 static void pulse_close(ALCdevice *device) //{{{
789 {
790 pulse_data *data = device->ExtraData;
791
792 pa_threaded_mainloop_lock(data->loop);
793
794 if(data->stream)
795 {
796 pa_stream_disconnect(data->stream);
797 pa_stream_unref(data->stream);
798 }
799
800 pa_context_disconnect(data->context);
801 pa_context_unref(data->context);
802
803 pa_threaded_mainloop_unlock(data->loop);
804
805 pa_threaded_mainloop_stop(data->loop);
806 pa_threaded_mainloop_free(data->loop);
807
808 DestroyRingBuffer(data->ring);
809 free(data->device_name);
810
811 device->ExtraData = NULL;
812 pa_xfree(data);
813 } //}}}
814 //}}}
815
816 // OpenAL {{{
817 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
818 {
819 char *pulse_name = NULL;
820 pa_sample_spec spec;
821 pulse_data *data;
822
823 if(!allDevNameMap)
824 probe_devices(AL_FALSE);
825
826 if(!device_name)
827 device_name = pulse_device;
828 else if(strcmp(device_name, pulse_device) != 0)
829 {
830 ALuint i;
831
832 for(i = 0;i < numDevNames;i++)
833 {
834 if(strcmp(device_name, allDevNameMap[i].name) == 0)
835 {
836 pulse_name = allDevNameMap[i].device_name;
837 break;
838 }
839 }
840 if(i == numDevNames)
841 return ALC_INVALID_VALUE;
842 }
843
844 if(pulse_open(device, device_name) == ALC_FALSE)
845 return ALC_INVALID_VALUE;
846
847 data = device->ExtraData;
848
849 pa_threaded_mainloop_lock(data->loop);
850
851 spec.format = PA_SAMPLE_S16NE;
852 spec.rate = 44100;
853 spec.channels = 2;
854
855 data->device_name = pulse_name;
856 pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL);
857 if(!stream)
858 {
859 pa_threaded_mainloop_unlock(data->loop);
860 goto fail;
861 }
862
863 if(pa_stream_is_suspended(stream))
864 {
865 ERR("Device is suspended\n");
866 pa_stream_disconnect(stream);
867 pa_stream_unref(stream);
868 pa_threaded_mainloop_unlock(data->loop);
869 goto fail;
870 }
871 data->device_name = strdup(pa_stream_get_device_name(stream));
872
873 pa_stream_disconnect(stream);
874 pa_stream_unref(stream);
875
876 pa_threaded_mainloop_unlock(data->loop);
877
878 return ALC_NO_ERROR;
879
880 fail:
881 pulse_close(device);
882 return ALC_INVALID_VALUE;
883 } //}}}
884
885 static void pulse_close_playback(ALCdevice *device) //{{{
886 {
887 pulse_close(device);
888 } //}}}
889
890 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
891 {
892 pulse_data *data = device->ExtraData;
893 pa_stream_flags_t flags = 0;
894 pa_channel_map chanmap;
895
896 pa_threaded_mainloop_lock(data->loop);
897
898 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
899 {
900 pa_operation *o;
901 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
902 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
903 pa_threaded_mainloop_wait(data->loop);
904 pa_operation_unref(o);
905 }
906 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
907 flags |= PA_STREAM_FIX_RATE;
908
909 data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
910 data->attr.prebuf = -1;
911 data->attr.fragsize = -1;
912 data->attr.minreq = device->UpdateSize * data->frame_size;
913 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
914 data->attr.maxlength = -1;
915 flags |= PA_STREAM_EARLY_REQUESTS;
916 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
917
918 switch(device->FmtType)
919 {
920 case DevFmtByte:
921 device->FmtType = DevFmtUByte;
922 /* fall-through */
923 case DevFmtUByte:
924 data->spec.format = PA_SAMPLE_U8;
925 break;
926 case DevFmtUShort:
927 device->FmtType = DevFmtShort;
928 /* fall-through */
929 case DevFmtShort:
930 data->spec.format = PA_SAMPLE_S16NE;
931 break;
932 case DevFmtUInt:
933 device->FmtType = DevFmtInt;
934 /* fall-through */
935 case DevFmtInt:
936 data->spec.format = PA_SAMPLE_S32NE;
937 break;
938 case DevFmtFloat:
939 data->spec.format = PA_SAMPLE_FLOAT32NE;
940 break;
941 }
942 data->spec.rate = device->Frequency;
943 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
944
945 if(pa_sample_spec_valid(&data->spec) == 0)
946 {
947 ERR("Invalid sample format\n");
948 pa_threaded_mainloop_unlock(data->loop);
949 return ALC_FALSE;
950 }
951
952 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
953 {
954 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
955 pa_threaded_mainloop_unlock(data->loop);
956 return ALC_FALSE;
957 }
958 SetDefaultWFXChannelOrder(device);
959
960 data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap);
961 if(!data->stream)
962 {
963 pa_threaded_mainloop_unlock(data->loop);
964 return ALC_FALSE;
965 }
966
967 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
968
969 data->spec = *(pa_stream_get_sample_spec(data->stream));
970 if(device->Frequency != data->spec.rate)
971 {
972 pa_operation *o;
973
974 /* Server updated our playback rate, so modify the buffer attribs
975 * accordingly. */
976 data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) *
977 data->spec.rate / device->Frequency * data->frame_size;
978 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
979
980 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
981 stream_success_callback, device);
982 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
983 pa_threaded_mainloop_wait(data->loop);
984 pa_operation_unref(o);
985
986 device->Frequency = data->spec.rate;
987 }
988
989 #if PA_CHECK_VERSION(0,9,15)
990 if(pa_stream_set_buffer_attr_callback)
991 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
992 #endif
993 pa_stream_set_moved_callback(data->stream, stream_device_callback, device);
994 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
995 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
996
997 data->attr = *(pa_stream_get_buffer_attr(data->stream));
998 device->UpdateSize = data->attr.minreq / data->frame_size;
999 device->NumUpdates = (data->attr.tlength/data->frame_size) / device->UpdateSize;
1000 if(device->NumUpdates <= 1)
1001 {
1002 pa_operation *o;
1003
1004 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1005
1006 /* Server gave a comparatively large minreq, so modify the tlength. */
1007 device->NumUpdates = 2;
1008 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1009
1010 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1011 stream_success_callback, device);
1012 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1013 pa_threaded_mainloop_wait(data->loop);
1014 pa_operation_unref(o);
1015 }
1016
1017 data->thread = StartThread(PulseProc, device);
1018 if(!data->thread)
1019 {
1020 #if PA_CHECK_VERSION(0,9,15)
1021 if(pa_stream_set_buffer_attr_callback)
1022 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1023 #endif
1024 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1025 pa_stream_set_write_callback(data->stream, NULL, NULL);
1026 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1027 pa_stream_disconnect(data->stream);
1028 pa_stream_unref(data->stream);
1029 data->stream = NULL;
1030
1031 pa_threaded_mainloop_unlock(data->loop);
1032 return ALC_FALSE;
1033 }
1034
1035 pa_threaded_mainloop_unlock(data->loop);
1036 return ALC_TRUE;
1037 } //}}}
1038
1039 static void pulse_stop_playback(ALCdevice *device) //{{{
1040 {
1041 pulse_data *data = device->ExtraData;
1042
1043 if(!data->stream)
1044 return;
1045
1046 data->killNow = AL_TRUE;
1047 if(data->thread)
1048 {
1049 pa_threaded_mainloop_signal(data->loop, 0);
1050 StopThread(data->thread);
1051 data->thread = NULL;
1052 }
1053 data->killNow = AL_FALSE;
1054
1055 pa_threaded_mainloop_lock(data->loop);
1056
1057 #if PA_CHECK_VERSION(0,9,15)
1058 if(pa_stream_set_buffer_attr_callback)
1059 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1060 #endif
1061 pa_stream_set_moved_callback(data->stream, NULL, NULL);
1062 pa_stream_set_write_callback(data->stream, NULL, NULL);
1063 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1064 pa_stream_disconnect(data->stream);
1065 pa_stream_unref(data->stream);
1066 data->stream = NULL;
1067
1068 pa_threaded_mainloop_unlock(data->loop);
1069 } //}}}
1070
1071
1072 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1073 {
1074 char *pulse_name = NULL;
1075 pulse_data *data;
1076 pa_stream_flags_t flags = 0;
1077 pa_stream_state_t state;
1078 pa_channel_map chanmap;
1079
1080 if(!allCaptureDevNameMap)
1081 probe_devices(AL_TRUE);
1082
1083 if(!device_name && numCaptureDevNames > 0)
1084 {
1085 device_name = allCaptureDevNameMap[0].name;
1086 pulse_name = allCaptureDevNameMap[0].device_name;
1087 }
1088 else
1089 {
1090 ALuint i;
1091 for(i = 0;i < numCaptureDevNames;i++)
1092 {
1093 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1094 {
1095 pulse_name = allCaptureDevNameMap[i].device_name;
1096 break;
1097 }
1098 }
1099 if(i == numCaptureDevNames)
1100 return ALC_INVALID_VALUE;
1101 }
1102
1103 if(pulse_open(device, device_name) == ALC_FALSE)
1104 return ALC_INVALID_VALUE;
1105
1106 data = device->ExtraData;
1107 pa_threaded_mainloop_lock(data->loop);
1108
1109 data->samples = device->UpdateSize * device->NumUpdates;
1110 data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
1111 data->samples = maxu(data->samples, 100 * device->Frequency / 1000);
1112
1113 if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
1114 {
1115 pa_threaded_mainloop_unlock(data->loop);
1116 goto fail;
1117 }
1118
1119 data->attr.minreq = -1;
1120 data->attr.prebuf = -1;
1121 data->attr.maxlength = data->samples * data->frame_size;
1122 data->attr.tlength = -1;
1123 data->attr.fragsize = minu(data->samples, 50*device->Frequency/1000) *
1124 data->frame_size;
1125
1126 data->spec.rate = device->Frequency;
1127 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1128
1129 switch(device->FmtType)
1130 {
1131 case DevFmtUByte:
1132 data->spec.format = PA_SAMPLE_U8;
1133 break;
1134 case DevFmtShort:
1135 data->spec.format = PA_SAMPLE_S16NE;
1136 break;
1137 case DevFmtInt:
1138 data->spec.format = PA_SAMPLE_S32NE;
1139 break;
1140 case DevFmtFloat:
1141 data->spec.format = PA_SAMPLE_FLOAT32NE;
1142 break;
1143 case DevFmtByte:
1144 case DevFmtUShort:
1145 case DevFmtUInt:
1146 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1147 pa_threaded_mainloop_unlock(data->loop);
1148 goto fail;
1149 }
1150
1151 if(pa_sample_spec_valid(&data->spec) == 0)
1152 {
1153 ERR("Invalid sample format\n");
1154 pa_threaded_mainloop_unlock(data->loop);
1155 goto fail;
1156 }
1157
1158 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1159 {
1160 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1161 pa_threaded_mainloop_unlock(data->loop);
1162 goto fail;
1163 }
1164
1165 data->stream = pa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap);
1166 if(!data->stream)
1167 {
1168 ERR("pa_stream_new() failed: %s\n",
1169 pa_strerror(pa_context_errno(data->context)));
1170
1171 pa_threaded_mainloop_unlock(data->loop);
1172 goto fail;
1173 }
1174
1175 pa_stream_set_state_callback(data->stream, stream_state_callback, data->loop);
1176
1177 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1178 if(pa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0)
1179 {
1180 ERR("Stream did not connect: %s\n",
1181 pa_strerror(pa_context_errno(data->context)));
1182
1183 pa_stream_unref(data->stream);
1184 data->stream = NULL;
1185
1186 pa_threaded_mainloop_unlock(data->loop);
1187 goto fail;
1188 }
1189
1190 while((state=pa_stream_get_state(data->stream)) != PA_STREAM_READY)
1191 {
1192 if(!PA_STREAM_IS_GOOD(state))
1193 {
1194 ERR("Stream did not get ready: %s\n",
1195 pa_strerror(pa_context_errno(data->context)));
1196
1197 pa_stream_unref(data->stream);
1198 data->stream = NULL;
1199
1200 pa_threaded_mainloop_unlock(data->loop);
1201 goto fail;
1202 }
1203
1204 pa_threaded_mainloop_wait(data->loop);
1205 }
1206 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1207
1208 pa_threaded_mainloop_unlock(data->loop);
1209 return ALC_NO_ERROR;
1210
1211 fail:
1212 pulse_close(device);
1213 return ALC_INVALID_VALUE;
1214 } //}}}
1215
1216 static void pulse_close_capture(ALCdevice *device) //{{{
1217 {
1218 pulse_close(device);
1219 } //}}}
1220
1221 static void pulse_start_capture(ALCdevice *device) //{{{
1222 {
1223 pulse_data *data = device->ExtraData;
1224 pa_operation *o;
1225
1226 pa_threaded_mainloop_lock(data->loop);
1227 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1228 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1229 pa_threaded_mainloop_wait(data->loop);
1230 pa_operation_unref(o);
1231 pa_threaded_mainloop_unlock(data->loop);
1232 } //}}}
1233
1234 static void pulse_stop_capture(ALCdevice *device) //{{{
1235 {
1236 pulse_data *data = device->ExtraData;
1237 pa_operation *o;
1238
1239 pa_threaded_mainloop_lock(data->loop);
1240 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1241 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1242 pa_threaded_mainloop_wait(data->loop);
1243 pa_operation_unref(o);
1244 pa_threaded_mainloop_unlock(data->loop);
1245 } //}}}
1246
1247 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1248 {
1249 pulse_data *data = device->ExtraData;
1250 ReadRingBuffer(data->ring, buffer, samples);
1251 return ALC_NO_ERROR;
1252 } //}}}
1253
1254 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1255 {
1256 pulse_data *data = device->ExtraData;
1257 size_t samples;
1258
1259 pa_threaded_mainloop_lock(data->loop);
1260 /* Capture is done in fragment-sized chunks, so we loop until we get all
1261 * that's available */
1262 samples = (device->Connected ? pa_stream_readable_size(data->stream) : 0);
1263 while(samples > 0)
1264 {
1265 const void *buf;
1266 size_t length;
1267
1268 if(pa_stream_peek(data->stream, &buf, &length) < 0)
1269 {
1270 ERR("pa_stream_peek() failed: %s\n",
1271 pa_strerror(pa_context_errno(data->context)));
1272 break;
1273 }
1274
1275 WriteRingBuffer(data->ring, buf, length/data->frame_size);
1276 samples -= length;
1277
1278 pa_stream_drop(data->stream);
1279 }
1280 pa_threaded_mainloop_unlock(data->loop);
1281
1282 return RingBufferSize(data->ring);
1283 } //}}}
1284
1285
1286 static const BackendFuncs pulse_funcs = { //{{{
1287 pulse_open_playback,
1288 pulse_close_playback,
1289 pulse_reset_playback,
1290 pulse_stop_playback,
1291 pulse_open_capture,
1292 pulse_close_capture,
1293 pulse_start_capture,
1294 pulse_stop_capture,
1295 pulse_capture_samples,
1296 pulse_available_samples
1297 }; //}}}
1298
1299 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1300 {
1301 ALCboolean ret = ALC_FALSE;
1302
1303 if(pulse_load())
1304 {
1305 pa_threaded_mainloop *loop;
1306
1307 pulse_ctx_flags = 0;
1308 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1309 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1310
1311 if((loop=pa_threaded_mainloop_new()) &&
1312 pa_threaded_mainloop_start(loop) >= 0)
1313 {
1314 pa_context *context;
1315
1316 pa_threaded_mainloop_lock(loop);
1317 context = connect_context(loop, AL_TRUE);
1318 if(context)
1319 {
1320 ret = ALC_TRUE;
1321
1322 pa_context_disconnect(context);
1323 pa_context_unref(context);
1324 }
1325 pa_threaded_mainloop_unlock(loop);
1326 pa_threaded_mainloop_stop(loop);
1327 }
1328 if(loop)
1329 pa_threaded_mainloop_free(loop);
1330 }
1331
1332 if(ret != ALC_FALSE)
1333 *func_list = pulse_funcs;
1334 return ret;
1335 } //}}}
1336
1337 void alc_pulse_deinit(void) //{{{
1338 {
1339 ALuint i;
1340
1341 for(i = 0;i < numDevNames;++i)
1342 {
1343 free(allDevNameMap[i].name);
1344 free(allDevNameMap[i].device_name);
1345 }
1346 free(allDevNameMap);
1347 allDevNameMap = NULL;
1348 numDevNames = 0;
1349
1350 for(i = 0;i < numCaptureDevNames;++i)
1351 {
1352 free(allCaptureDevNameMap[i].name);
1353 free(allCaptureDevNameMap[i].device_name);
1354 }
1355 free(allCaptureDevNameMap);
1356 allCaptureDevNameMap = NULL;
1357 numCaptureDevNames = 0;
1358
1359 #ifdef HAVE_DYNLOAD
1360 if(pa_handle)
1361 CloseLib(pa_handle);
1362 pa_handle = NULL;
1363 #endif
1364 } //}}}
1365
1366 void alc_pulse_probe(enum DevProbe type) //{{{
1367 {
1368 pa_threaded_mainloop *loop;
1369 ALuint i;
1370
1371 switch(type)
1372 {
1373 case DEVICE_PROBE:
1374 if((loop=pa_threaded_mainloop_new()) &&
1375 pa_threaded_mainloop_start(loop) >= 0)
1376 {
1377 pa_context *context;
1378
1379 pa_threaded_mainloop_lock(loop);
1380 context = connect_context(loop, AL_FALSE);
1381 if(context)
1382 {
1383 AppendDeviceList(pulse_device);
1384
1385 pa_context_disconnect(context);
1386 pa_context_unref(context);
1387 }
1388 pa_threaded_mainloop_unlock(loop);
1389 pa_threaded_mainloop_stop(loop);
1390 }
1391 if(loop)
1392 pa_threaded_mainloop_free(loop);
1393 break;
1394
1395 case ALL_DEVICE_PROBE:
1396 for(i = 0;i < numDevNames;++i)
1397 {
1398 free(allDevNameMap[i].name);
1399 free(allDevNameMap[i].device_name);
1400 }
1401 free(allDevNameMap);
1402 allDevNameMap = NULL;
1403 numDevNames = 0;
1404
1405 probe_devices(AL_FALSE);
1406
1407 for(i = 0;i < numDevNames;i++)
1408 AppendAllDeviceList(allDevNameMap[i].name);
1409 break;
1410
1411 case CAPTURE_DEVICE_PROBE:
1412 for(i = 0;i < numCaptureDevNames;++i)
1413 {
1414 free(allCaptureDevNameMap[i].name);
1415 free(allCaptureDevNameMap[i].device_name);
1416 }
1417 free(allCaptureDevNameMap);
1418 allCaptureDevNameMap = NULL;
1419 numCaptureDevNames = 0;
1420
1421 probe_devices(AL_TRUE);
1422
1423 for(i = 0;i < numCaptureDevNames;i++)
1424 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1425 break;
1426 }
1427 } //}}}
1428 //}}}
Software OpenAL implementation