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Update the stored buffer attributes if PulseAudio changes it
[openal-soft.git] / Alc / backends / pulseaudio.c
blobb504e89196867465ff404e70f7c82b94e340816e
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 ALCdevice *device = pdata;
423 pulse_data *data = device->ExtraData;
424
425 data->attr = *pa_stream_get_buffer_attr(stream);
426 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", data->attr.minreq, data->attr.tlength);
427
428 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
429 device->NumUpdates = data->attr.tlength / data->attr.minreq;
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 void *temp;
525 ALuint i;
526
527 (void)context;
528
529 if(eol)
530 {
531 pa_threaded_mainloop_signal(loop, 0);
532 return;
533 }
534
535 for(i = 0;i < numDevNames;i++)
536 {
537 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
538 return;
539 }
540
541 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
542
543 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
544 if(temp)
545 {
546 allDevNameMap = temp;
547 allDevNameMap[numDevNames].name = strdup(info->description);
548 allDevNameMap[numDevNames].device_name = strdup(info->name);
549 numDevNames++;
550 }
551 }//}}}
552
553 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
554 {
555 pa_threaded_mainloop *loop = pdata;
556 void *temp;
557 ALuint i;
558
559 (void)context;
560
561 if(eol)
562 {
563 pa_threaded_mainloop_signal(loop, 0);
564 return;
565 }
566
567 for(i = 0;i < numCaptureDevNames;i++)
568 {
569 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
570 return;
571 }
572
573 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
574
575 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
576 if(temp)
577 {
578 allCaptureDevNameMap = temp;
579 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
580 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
581 numCaptureDevNames++;
582 }
583 }//}}}
584 //}}}
585
586
587 static pa_stream *connect_playback_stream(const char *device_name,
588 pa_threaded_mainloop *loop, pa_context *context,
589 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
590 pa_channel_map *chanmap)
591 {
592 pa_stream_state_t state;
593 pa_stream *stream;
594
595 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
596 if(!stream)
597 {
598 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
599 return NULL;
600 }
601
602 pa_stream_set_state_callback(stream, stream_state_callback, loop);
603
604 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
605 {
606 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
607 pa_stream_unref(stream);
608 return NULL;
609 }
610
611 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
612 {
613 if(!PA_STREAM_IS_GOOD(state))
614 {
615 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
616 pa_stream_unref(stream);
617 return NULL;
618 }
619
620 pa_threaded_mainloop_wait(loop);
621 }
622 pa_stream_set_state_callback(stream, NULL, NULL);
623
624 return stream;
625 }
626
627 static pa_stream *connect_record_stream(const char *device_name,
628 pa_threaded_mainloop *loop, pa_context *context,
629 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
630 pa_channel_map *chanmap)
631 {
632 pa_stream_state_t state;
633 pa_stream *stream;
634
635 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
636 if(!stream)
637 {
638 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
639 return NULL;
640 }
641
642 pa_stream_set_state_callback(stream, stream_state_callback, loop);
643
644 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
645 {
646 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
647 pa_stream_unref(stream);
648 return NULL;
649 }
650
651 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
652 {
653 if(!PA_STREAM_IS_GOOD(state))
654 {
655 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
656 pa_stream_unref(stream);
657 return NULL;
658 }
659
660 pa_threaded_mainloop_wait(loop);
661 }
662 pa_stream_set_state_callback(stream, NULL, NULL);
663
664 return stream;
665 }
666
667
668 static void probe_devices(ALboolean capture)
669 {
670 pa_threaded_mainloop *loop;
671
672 if(capture == AL_FALSE)
673 allDevNameMap = malloc(sizeof(DevMap) * 1);
674 else
675 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
676
677 if((loop=pa_threaded_mainloop_new()) &&
678 pa_threaded_mainloop_start(loop) >= 0)
679 {
680 pa_context *context;
681
682 pa_threaded_mainloop_lock(loop);
683 context = connect_context(loop, AL_FALSE);
684 if(context)
685 {
686 pa_operation *o;
687
688 if(capture == AL_FALSE)
689 {
690 pa_stream_flags_t flags;
691 pa_sample_spec spec;
692 pa_stream *stream;
693
694 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
695 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
696
697 spec.format = PA_SAMPLE_S16NE;
698 spec.rate = 44100;
699 spec.channels = 2;
700
701 stream = connect_playback_stream(NULL, loop, context, flags,
702 NULL, &spec, NULL);
703 if(stream)
704 {
705 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
706 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
707 pa_threaded_mainloop_wait(loop);
708 pa_operation_unref(o);
709
710 pa_stream_disconnect(stream);
711 pa_stream_unref(stream);
712 stream = NULL;
713 }
714
715 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
716 }
717 else
718 {
719 pa_stream_flags_t flags;
720 pa_sample_spec spec;
721 pa_stream *stream;
722
723 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
724 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
725
726 spec.format = PA_SAMPLE_S16NE;
727 spec.rate = 44100;
728 spec.channels = 1;
729
730 stream = connect_record_stream(NULL, loop, context, flags,
731 NULL, &spec, NULL);
732 if(stream)
733 {
734 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
735 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
736 pa_threaded_mainloop_wait(loop);
737 pa_operation_unref(o);
738
739 pa_stream_disconnect(stream);
740 pa_stream_unref(stream);
741 stream = NULL;
742 }
743
744 o = pa_context_get_source_info_list(context, source_device_callback, loop);
745 }
746 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
747 pa_threaded_mainloop_wait(loop);
748 pa_operation_unref(o);
749
750 pa_context_disconnect(context);
751 pa_context_unref(context);
752 }
753 pa_threaded_mainloop_unlock(loop);
754 pa_threaded_mainloop_stop(loop);
755 }
756 if(loop)
757 pa_threaded_mainloop_free(loop);
758 }
759
760
761 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata)
762 {
763 ALCdevice *Device = pdata;
764 pulse_data *data = Device->ExtraData;
765 (void)stream;
766 (void)len;
767
768 pa_threaded_mainloop_signal(data->loop, 0);
769 }
770
771 static ALuint PulseProc(ALvoid *param)
772 {
773 ALCdevice *Device = param;
774 pulse_data *data = Device->ExtraData;
775 size_t frame_size;
776 size_t len;
777
778 SetRTPriority();
779
780 frame_size = pa_frame_size(&data->spec);
781 pa_threaded_mainloop_lock(data->loop);
782 do {
783 len = pa_stream_writable_size(data->stream);
784 if(len < data->attr.minreq)
785 {
786 pa_threaded_mainloop_wait(data->loop);
787 continue;
788 }
789 len -= len%data->attr.minreq;
790
791 while(len > 0)
792 {
793 size_t newlen = len;
794 void *buf;
795 pa_free_cb_t free_func = NULL;
796
797 #if PA_CHECK_VERSION(0,9,16)
798 if(!pa_stream_begin_write ||
799 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
800 #endif
801 {
802 buf = pa_xmalloc(newlen);
803 free_func = pa_xfree;
804 }
805 pa_threaded_mainloop_unlock(data->loop);
806
807 aluMixData(Device, buf, newlen/frame_size);
808
809 pa_threaded_mainloop_lock(data->loop);
810 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
811 len -= newlen;
812 }
813 } while(!data->killNow && Device->Connected);
814 pa_threaded_mainloop_unlock(data->loop);
815
816 return 0;
817 }
818
819
820 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
821 {
822 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
823 memset(data, 0, sizeof(*data));
824
825 if(!(data->loop = pa_threaded_mainloop_new()))
826 {
827 ERR("pa_threaded_mainloop_new() failed!\n");
828 goto out;
829 }
830 if(pa_threaded_mainloop_start(data->loop) < 0)
831 {
832 ERR("pa_threaded_mainloop_start() failed\n");
833 goto out;
834 }
835
836 pa_threaded_mainloop_lock(data->loop);
837 device->ExtraData = data;
838
839 data->context = connect_context(data->loop, AL_FALSE);
840 if(!data->context)
841 {
842 pa_threaded_mainloop_unlock(data->loop);
843 goto out;
844 }
845 pa_context_set_state_callback(data->context, context_state_callback2, device);
846
847 device->szDeviceName = strdup(device_name);
848
849 pa_threaded_mainloop_unlock(data->loop);
850 return ALC_TRUE;
851
852 out:
853 if(data->loop)
854 {
855 pa_threaded_mainloop_stop(data->loop);
856 pa_threaded_mainloop_free(data->loop);
857 }
858
859 device->ExtraData = NULL;
860 pa_xfree(data);
861 return ALC_FALSE;
862 } //}}}
863
864 static void pulse_close(ALCdevice *device) //{{{
865 {
866 pulse_data *data = device->ExtraData;
867
868 pa_threaded_mainloop_lock(data->loop);
869
870 if(data->stream)
871 {
872 pa_stream_disconnect(data->stream);
873 pa_stream_unref(data->stream);
874 }
875
876 pa_context_disconnect(data->context);
877 pa_context_unref(data->context);
878
879 pa_threaded_mainloop_unlock(data->loop);
880
881 pa_threaded_mainloop_stop(data->loop);
882 pa_threaded_mainloop_free(data->loop);
883
884 free(data->device_name);
885
886 device->ExtraData = NULL;
887 pa_xfree(data);
888 } //}}}
889 //}}}
890
891 // OpenAL {{{
892 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
893 {
894 const char *pulse_name = NULL;
895 pulse_data *data;
896
897 if(!allDevNameMap)
898 probe_devices(AL_FALSE);
899
900 if(!device_name && numDevNames > 0)
901 {
902 device_name = allDevNameMap[0].name;
903 pulse_name = allDevNameMap[0].device_name;
904 }
905 else
906 {
907 ALuint i;
908
909 for(i = 0;i < numDevNames;i++)
910 {
911 if(strcmp(device_name, allDevNameMap[i].name) == 0)
912 {
913 pulse_name = allDevNameMap[i].device_name;
914 break;
915 }
916 }
917 if(i == numDevNames)
918 return ALC_INVALID_VALUE;
919 }
920
921 if(pulse_open(device, device_name) == ALC_FALSE)
922 return ALC_INVALID_VALUE;
923
924 data = device->ExtraData;
925 data->device_name = strdup(pulse_name);
926
927 return ALC_NO_ERROR;
928 } //}}}
929
930 static void pulse_close_playback(ALCdevice *device) //{{{
931 {
932 pulse_close(device);
933 } //}}}
934
935 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
936 {
937 pulse_data *data = device->ExtraData;
938 pa_stream_flags_t flags = 0;
939 pa_channel_map chanmap;
940
941 pa_threaded_mainloop_lock(data->loop);
942
943 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
944 {
945 pa_operation *o;
946 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
947 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
948 pa_threaded_mainloop_wait(data->loop);
949 pa_operation_unref(o);
950 }
951 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
952 flags |= PA_STREAM_FIX_RATE;
953
954 flags |= PA_STREAM_EARLY_REQUESTS;
955 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
956 flags |= PA_STREAM_DONT_MOVE;
957
958 switch(device->FmtType)
959 {
960 case DevFmtByte:
961 device->FmtType = DevFmtUByte;
962 /* fall-through */
963 case DevFmtUByte:
964 data->spec.format = PA_SAMPLE_U8;
965 break;
966 case DevFmtUShort:
967 device->FmtType = DevFmtShort;
968 /* fall-through */
969 case DevFmtShort:
970 data->spec.format = PA_SAMPLE_S16NE;
971 break;
972 case DevFmtUInt:
973 device->FmtType = DevFmtInt;
974 /* fall-through */
975 case DevFmtInt:
976 data->spec.format = PA_SAMPLE_S32NE;
977 break;
978 case DevFmtFloat:
979 data->spec.format = PA_SAMPLE_FLOAT32NE;
980 break;
981 }
982 data->spec.rate = device->Frequency;
983 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
984
985 if(pa_sample_spec_valid(&data->spec) == 0)
986 {
987 ERR("Invalid sample format\n");
988 pa_threaded_mainloop_unlock(data->loop);
989 return ALC_FALSE;
990 }
991
992 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
993 {
994 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
995 pa_threaded_mainloop_unlock(data->loop);
996 return ALC_FALSE;
997 }
998 SetDefaultWFXChannelOrder(device);
999
1000 data->attr.prebuf = -1;
1001 data->attr.fragsize = -1;
1002 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1003 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1004 data->attr.maxlength = -1;
1005
1006 data->stream = connect_playback_stream(data->device_name, data->loop,
1007 data->context, flags, &data->attr,
1008 &data->spec, &chanmap);
1009 if(!data->stream)
1010 {
1011 pa_threaded_mainloop_unlock(data->loop);
1012 return ALC_FALSE;
1013 }
1014
1015 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1016
1017 data->spec = *(pa_stream_get_sample_spec(data->stream));
1018 if(device->Frequency != data->spec.rate)
1019 {
1020 size_t frame_size = pa_frame_size(&data->spec);
1021 pa_operation *o;
1022
1023 /* Server updated our playback rate, so modify the buffer attribs
1024 * accordingly. */
1025 data->attr.minreq = (ALuint64)(data->attr.minreq/frame_size) *
1026 data->spec.rate / device->Frequency * frame_size;
1027 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1028
1029 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1030 stream_success_callback, device);
1031 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1032 pa_threaded_mainloop_wait(data->loop);
1033 pa_operation_unref(o);
1034
1035 device->Frequency = data->spec.rate;
1036 }
1037
1038 #if PA_CHECK_VERSION(0,9,15)
1039 if(pa_stream_set_buffer_attr_callback)
1040 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1041 #endif
1042 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1043 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1044
1045 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1046 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1047 device->NumUpdates = data->attr.tlength / data->attr.minreq;
1048 if(device->NumUpdates <= 1)
1049 {
1050 pa_operation *o;
1051
1052 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1053
1054 /* Server gave a comparatively large minreq, so modify the tlength. */
1055 device->NumUpdates = 2;
1056 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1057
1058 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1059 stream_success_callback, device);
1060 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1061 pa_threaded_mainloop_wait(data->loop);
1062 pa_operation_unref(o);
1063 }
1064
1065 data->thread = StartThread(PulseProc, device);
1066 if(!data->thread)
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, NULL, NULL);
1071 #endif
1072 pa_stream_set_write_callback(data->stream, NULL, NULL);
1073 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1074 pa_stream_disconnect(data->stream);
1075 pa_stream_unref(data->stream);
1076 data->stream = NULL;
1077
1078 pa_threaded_mainloop_unlock(data->loop);
1079 return ALC_FALSE;
1080 }
1081
1082 pa_threaded_mainloop_unlock(data->loop);
1083 return ALC_TRUE;
1084 } //}}}
1085
1086 static void pulse_stop_playback(ALCdevice *device) //{{{
1087 {
1088 pulse_data *data = device->ExtraData;
1089
1090 if(!data->stream)
1091 return;
1092
1093 data->killNow = AL_TRUE;
1094 if(data->thread)
1095 {
1096 pa_threaded_mainloop_signal(data->loop, 0);
1097 StopThread(data->thread);
1098 data->thread = NULL;
1099 }
1100 data->killNow = AL_FALSE;
1101
1102 pa_threaded_mainloop_lock(data->loop);
1103
1104 #if PA_CHECK_VERSION(0,9,15)
1105 if(pa_stream_set_buffer_attr_callback)
1106 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1107 #endif
1108 pa_stream_set_write_callback(data->stream, NULL, NULL);
1109 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1110 pa_stream_disconnect(data->stream);
1111 pa_stream_unref(data->stream);
1112 data->stream = NULL;
1113
1114 pa_threaded_mainloop_unlock(data->loop);
1115 } //}}}
1116
1117
1118 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1119 {
1120 const char *pulse_name = NULL;
1121 pa_stream_flags_t flags = 0;
1122 pa_channel_map chanmap;
1123 pulse_data *data;
1124 ALuint samples;
1125
1126 if(!allCaptureDevNameMap)
1127 probe_devices(AL_TRUE);
1128
1129 if(!device_name && numCaptureDevNames > 0)
1130 {
1131 device_name = allCaptureDevNameMap[0].name;
1132 pulse_name = allCaptureDevNameMap[0].device_name;
1133 }
1134 else
1135 {
1136 ALuint i;
1137 for(i = 0;i < numCaptureDevNames;i++)
1138 {
1139 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1140 {
1141 pulse_name = allCaptureDevNameMap[i].device_name;
1142 break;
1143 }
1144 }
1145 if(i == numCaptureDevNames)
1146 return ALC_INVALID_VALUE;
1147 }
1148
1149 if(pulse_open(device, device_name) == ALC_FALSE)
1150 return ALC_INVALID_VALUE;
1151
1152 data = device->ExtraData;
1153 pa_threaded_mainloop_lock(data->loop);
1154
1155 data->spec.rate = device->Frequency;
1156 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1157
1158 switch(device->FmtType)
1159 {
1160 case DevFmtUByte:
1161 data->spec.format = PA_SAMPLE_U8;
1162 break;
1163 case DevFmtShort:
1164 data->spec.format = PA_SAMPLE_S16NE;
1165 break;
1166 case DevFmtInt:
1167 data->spec.format = PA_SAMPLE_S32NE;
1168 break;
1169 case DevFmtFloat:
1170 data->spec.format = PA_SAMPLE_FLOAT32NE;
1171 break;
1172 case DevFmtByte:
1173 case DevFmtUShort:
1174 case DevFmtUInt:
1175 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1176 pa_threaded_mainloop_unlock(data->loop);
1177 goto fail;
1178 }
1179
1180 if(pa_sample_spec_valid(&data->spec) == 0)
1181 {
1182 ERR("Invalid sample format\n");
1183 pa_threaded_mainloop_unlock(data->loop);
1184 goto fail;
1185 }
1186
1187 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1188 {
1189 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1190 pa_threaded_mainloop_unlock(data->loop);
1191 goto fail;
1192 }
1193
1194 samples = device->UpdateSize * device->NumUpdates;
1195 samples = maxu(samples, 100 * device->Frequency / 1000);
1196
1197 data->attr.minreq = -1;
1198 data->attr.prebuf = -1;
1199 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1200 data->attr.tlength = -1;
1201 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1202 pa_frame_size(&data->spec);
1203
1204 flags |= PA_STREAM_DONT_MOVE;
1205 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1206 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1207 flags, &data->attr, &data->spec,
1208 &chanmap);
1209 if(!data->stream)
1210 {
1211 pa_threaded_mainloop_unlock(data->loop);
1212 goto fail;
1213 }
1214
1215 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1216
1217 pa_threaded_mainloop_unlock(data->loop);
1218 return ALC_NO_ERROR;
1219
1220 fail:
1221 pulse_close(device);
1222 return ALC_INVALID_VALUE;
1223 } //}}}
1224
1225 static void pulse_close_capture(ALCdevice *device) //{{{
1226 {
1227 pulse_close(device);
1228 } //}}}
1229
1230 static void pulse_start_capture(ALCdevice *device) //{{{
1231 {
1232 pulse_data *data = device->ExtraData;
1233 pa_operation *o;
1234
1235 pa_threaded_mainloop_lock(data->loop);
1236 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1237 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1238 pa_threaded_mainloop_wait(data->loop);
1239 pa_operation_unref(o);
1240 pa_threaded_mainloop_unlock(data->loop);
1241 } //}}}
1242
1243 static void pulse_stop_capture(ALCdevice *device) //{{{
1244 {
1245 pulse_data *data = device->ExtraData;
1246 pa_operation *o;
1247
1248 pa_threaded_mainloop_lock(data->loop);
1249 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1250 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1251 pa_threaded_mainloop_wait(data->loop);
1252 pa_operation_unref(o);
1253 pa_threaded_mainloop_unlock(data->loop);
1254 } //}}}
1255
1256 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1257 {
1258 pulse_data *data = device->ExtraData;
1259 ALCuint todo = samples * pa_frame_size(&data->spec);
1260
1261 pa_threaded_mainloop_lock(data->loop);
1262 /* Capture is done in fragment-sized chunks, so we loop until we get all
1263 * that's available */
1264 data->last_readable -= todo;
1265 while(todo > 0)
1266 {
1267 size_t rem = todo;
1268
1269 if(data->cap_len == 0)
1270 {
1271 pa_stream_state_t state;
1272
1273 state = pa_stream_get_state(data->stream);
1274 if(!PA_STREAM_IS_GOOD(state))
1275 {
1276 aluHandleDisconnect(device);
1277 break;
1278 }
1279 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1280 {
1281 ERR("pa_stream_peek() failed: %s\n",
1282 pa_strerror(pa_context_errno(data->context)));
1283 aluHandleDisconnect(device);
1284 break;
1285 }
1286 data->cap_remain = data->cap_len;
1287 }
1288 if(rem > data->cap_remain)
1289 rem = data->cap_remain;
1290
1291 memcpy(buffer, data->cap_store, rem);
1292
1293 buffer = (ALbyte*)buffer + rem;
1294 todo -= rem;
1295
1296 data->cap_store = (ALbyte*)data->cap_store + rem;
1297 data->cap_remain -= rem;
1298 if(data->cap_remain == 0)
1299 {
1300 pa_stream_drop(data->stream);
1301 data->cap_len = 0;
1302 }
1303 }
1304 if(todo > 0)
1305 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1306 pa_threaded_mainloop_unlock(data->loop);
1307
1308 return ALC_NO_ERROR;
1309 } //}}}
1310
1311 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1312 {
1313 pulse_data *data = device->ExtraData;
1314 size_t readable = data->cap_remain;
1315
1316 pa_threaded_mainloop_lock(data->loop);
1317 if(device->Connected)
1318 {
1319 ssize_t got = pa_stream_readable_size(data->stream);
1320 if(got > 0 && (size_t)got > data->cap_len)
1321 readable += got - data->cap_len;
1322 }
1323 pa_threaded_mainloop_unlock(data->loop);
1324
1325 if(data->last_readable < readable)
1326 data->last_readable = readable;
1327 return data->last_readable / pa_frame_size(&data->spec);
1328 } //}}}
1329
1330
1331 static const BackendFuncs pulse_funcs = { //{{{
1332 pulse_open_playback,
1333 pulse_close_playback,
1334 pulse_reset_playback,
1335 pulse_stop_playback,
1336 pulse_open_capture,
1337 pulse_close_capture,
1338 pulse_start_capture,
1339 pulse_stop_capture,
1340 pulse_capture_samples,
1341 pulse_available_samples
1342 }; //}}}
1343
1344 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1345 {
1346 ALCboolean ret = ALC_FALSE;
1347
1348 if(pulse_load())
1349 {
1350 pa_threaded_mainloop *loop;
1351
1352 pulse_ctx_flags = 0;
1353 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1354 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1355
1356 if((loop=pa_threaded_mainloop_new()) &&
1357 pa_threaded_mainloop_start(loop) >= 0)
1358 {
1359 pa_context *context;
1360
1361 pa_threaded_mainloop_lock(loop);
1362 context = connect_context(loop, AL_TRUE);
1363 if(context)
1364 {
1365 ret = ALC_TRUE;
1366
1367 pa_context_disconnect(context);
1368 pa_context_unref(context);
1369 }
1370 pa_threaded_mainloop_unlock(loop);
1371 pa_threaded_mainloop_stop(loop);
1372 }
1373 if(loop)
1374 pa_threaded_mainloop_free(loop);
1375 }
1376
1377 if(ret != ALC_FALSE)
1378 *func_list = pulse_funcs;
1379 return ret;
1380 } //}}}
1381
1382 void alc_pulse_deinit(void) //{{{
1383 {
1384 ALuint i;
1385
1386 for(i = 0;i < numDevNames;++i)
1387 {
1388 free(allDevNameMap[i].name);
1389 free(allDevNameMap[i].device_name);
1390 }
1391 free(allDevNameMap);
1392 allDevNameMap = NULL;
1393 numDevNames = 0;
1394
1395 for(i = 0;i < numCaptureDevNames;++i)
1396 {
1397 free(allCaptureDevNameMap[i].name);
1398 free(allCaptureDevNameMap[i].device_name);
1399 }
1400 free(allCaptureDevNameMap);
1401 allCaptureDevNameMap = NULL;
1402 numCaptureDevNames = 0;
1403
1404 #ifdef HAVE_DYNLOAD
1405 if(pa_handle)
1406 CloseLib(pa_handle);
1407 pa_handle = NULL;
1408 #endif
1409 } //}}}
1410
1411 void alc_pulse_probe(enum DevProbe type) //{{{
1412 {
1413 ALuint i;
1414
1415 switch(type)
1416 {
1417 case ALL_DEVICE_PROBE:
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 probe_devices(AL_FALSE);
1428
1429 for(i = 0;i < numDevNames;i++)
1430 AppendAllDeviceList(allDevNameMap[i].name);
1431 break;
1432
1433 case CAPTURE_DEVICE_PROBE:
1434 for(i = 0;i < numCaptureDevNames;++i)
1435 {
1436 free(allCaptureDevNameMap[i].name);
1437 free(allCaptureDevNameMap[i].device_name);
1438 }
1439 free(allCaptureDevNameMap);
1440 allCaptureDevNameMap = NULL;
1441 numCaptureDevNames = 0;
1442
1443 probe_devices(AL_TRUE);
1444
1445 for(i = 0;i < numCaptureDevNames;i++)
1446 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1447 break;
1448 }
1449 } //}}}
1450 //}}}
Software OpenAL implementation