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Set prebuf to the expected buffer size
[openal-soft.git] / Alc / backends / pulseaudio.c
bloba81966d72e77f725af2d57958da31869f21e2b09
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
4 * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 * Or go to http://www.gnu.org/copyleft/lgpl.html
20 */
21
22 #include "config.h"
23
24 #include "alMain.h"
25
26 #include <pulse/pulseaudio.h>
27
28 #if PA_API_VERSION == 12
29
30 #ifndef PA_CHECK_VERSION
31 #define PA_CHECK_VERSION(major,minor,micro) \
32 ((PA_MAJOR > (major)) || \
33 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
34 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
35 #endif
36
37 #ifdef HAVE_DYNLOAD
38 static void *pa_handle;
39 #define MAKE_FUNC(x) static typeof(x) * p##x
40 MAKE_FUNC(pa_context_unref);
41 MAKE_FUNC(pa_sample_spec_valid);
42 MAKE_FUNC(pa_frame_size);
43 MAKE_FUNC(pa_stream_drop);
44 MAKE_FUNC(pa_strerror);
45 MAKE_FUNC(pa_context_get_state);
46 MAKE_FUNC(pa_stream_get_state);
47 MAKE_FUNC(pa_threaded_mainloop_signal);
48 MAKE_FUNC(pa_stream_peek);
49 MAKE_FUNC(pa_threaded_mainloop_wait);
50 MAKE_FUNC(pa_threaded_mainloop_unlock);
51 MAKE_FUNC(pa_threaded_mainloop_in_thread);
52 MAKE_FUNC(pa_context_new);
53 MAKE_FUNC(pa_threaded_mainloop_stop);
54 MAKE_FUNC(pa_context_disconnect);
55 MAKE_FUNC(pa_threaded_mainloop_start);
56 MAKE_FUNC(pa_threaded_mainloop_get_api);
57 MAKE_FUNC(pa_context_set_state_callback);
58 MAKE_FUNC(pa_stream_write);
59 MAKE_FUNC(pa_xfree);
60 MAKE_FUNC(pa_stream_connect_record);
61 MAKE_FUNC(pa_stream_connect_playback);
62 MAKE_FUNC(pa_stream_readable_size);
63 MAKE_FUNC(pa_stream_writable_size);
64 MAKE_FUNC(pa_stream_cork);
65 MAKE_FUNC(pa_stream_is_suspended);
66 MAKE_FUNC(pa_stream_get_device_name);
67 MAKE_FUNC(pa_path_get_filename);
68 MAKE_FUNC(pa_get_binary_name);
69 MAKE_FUNC(pa_threaded_mainloop_free);
70 MAKE_FUNC(pa_context_errno);
71 MAKE_FUNC(pa_xmalloc);
72 MAKE_FUNC(pa_stream_unref);
73 MAKE_FUNC(pa_threaded_mainloop_accept);
74 MAKE_FUNC(pa_stream_set_write_callback);
75 MAKE_FUNC(pa_threaded_mainloop_new);
76 MAKE_FUNC(pa_context_connect);
77 MAKE_FUNC(pa_stream_set_buffer_attr);
78 MAKE_FUNC(pa_stream_get_buffer_attr);
79 MAKE_FUNC(pa_stream_get_sample_spec);
80 MAKE_FUNC(pa_stream_get_time);
81 MAKE_FUNC(pa_stream_set_read_callback);
82 MAKE_FUNC(pa_stream_set_state_callback);
83 MAKE_FUNC(pa_stream_set_moved_callback);
84 MAKE_FUNC(pa_stream_set_underflow_callback);
85 MAKE_FUNC(pa_stream_new);
86 MAKE_FUNC(pa_stream_disconnect);
87 MAKE_FUNC(pa_threaded_mainloop_lock);
88 MAKE_FUNC(pa_channel_map_init_auto);
89 MAKE_FUNC(pa_channel_map_parse);
90 MAKE_FUNC(pa_channel_map_snprint);
91 MAKE_FUNC(pa_channel_map_equal);
92 MAKE_FUNC(pa_context_get_server_info);
93 MAKE_FUNC(pa_context_get_sink_info_by_name);
94 MAKE_FUNC(pa_context_get_sink_info_list);
95 MAKE_FUNC(pa_context_get_source_info_by_name);
96 MAKE_FUNC(pa_context_get_source_info_list);
97 MAKE_FUNC(pa_operation_get_state);
98 MAKE_FUNC(pa_operation_unref);
99 #if PA_CHECK_VERSION(0,9,15)
100 MAKE_FUNC(pa_channel_map_superset);
101 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
102 #endif
103 #if PA_CHECK_VERSION(0,9,16)
104 MAKE_FUNC(pa_stream_begin_write);
105 #endif
106 #undef MAKE_FUNC
107
108 #define pa_context_unref ppa_context_unref
109 #define pa_sample_spec_valid ppa_sample_spec_valid
110 #define pa_frame_size ppa_frame_size
111 #define pa_stream_drop ppa_stream_drop
112 #define pa_strerror ppa_strerror
113 #define pa_context_get_state ppa_context_get_state
114 #define pa_stream_get_state ppa_stream_get_state
115 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
116 #define pa_stream_peek ppa_stream_peek
117 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
118 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
119 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
120 #define pa_context_new ppa_context_new
121 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
122 #define pa_context_disconnect ppa_context_disconnect
123 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
124 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
125 #define pa_context_set_state_callback ppa_context_set_state_callback
126 #define pa_stream_write ppa_stream_write
127 #define pa_xfree ppa_xfree
128 #define pa_stream_connect_record ppa_stream_connect_record
129 #define pa_stream_connect_playback ppa_stream_connect_playback
130 #define pa_stream_readable_size ppa_stream_readable_size
131 #define pa_stream_writable_size ppa_stream_writable_size
132 #define pa_stream_cork ppa_stream_cork
133 #define pa_stream_is_suspended ppa_stream_is_suspended
134 #define pa_stream_get_device_name ppa_stream_get_device_name
135 #define pa_path_get_filename ppa_path_get_filename
136 #define pa_get_binary_name ppa_get_binary_name
137 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
138 #define pa_context_errno ppa_context_errno
139 #define pa_xmalloc ppa_xmalloc
140 #define pa_stream_unref ppa_stream_unref
141 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
142 #define pa_stream_set_write_callback ppa_stream_set_write_callback
143 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
144 #define pa_context_connect ppa_context_connect
145 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
146 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
147 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
148 #define pa_stream_get_time ppa_stream_get_time
149 #define pa_stream_set_read_callback ppa_stream_set_read_callback
150 #define pa_stream_set_state_callback ppa_stream_set_state_callback
151 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
152 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
153 #define pa_stream_new ppa_stream_new
154 #define pa_stream_disconnect ppa_stream_disconnect
155 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
156 #define pa_channel_map_init_auto ppa_channel_map_init_auto
157 #define pa_channel_map_parse ppa_channel_map_parse
158 #define pa_channel_map_snprint ppa_channel_map_snprint
159 #define pa_channel_map_equal ppa_channel_map_equal
160 #define pa_context_get_server_info ppa_context_get_server_info
161 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
162 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
163 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
164 #define pa_context_get_source_info_list ppa_context_get_source_info_list
165 #define pa_operation_get_state ppa_operation_get_state
166 #define pa_operation_unref ppa_operation_unref
167 #if PA_CHECK_VERSION(0,9,15)
168 #define pa_channel_map_superset ppa_channel_map_superset
169 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
170 #endif
171 #if PA_CHECK_VERSION(0,9,16)
172 #define pa_stream_begin_write ppa_stream_begin_write
173 #endif
174
175 #endif
176
177 #ifndef PATH_MAX
178 #define PATH_MAX 4096
179 #endif
180
181 typedef struct {
182 char *device_name;
183
184 const void *cap_store;
185 size_t cap_len;
186 size_t cap_remain;
187
188 ALCuint last_readable;
189
190 pa_buffer_attr attr;
191 pa_sample_spec spec;
192
193 pa_threaded_mainloop *loop;
194
195 ALvoid *thread;
196 volatile ALboolean killNow;
197
198 pa_stream *stream;
199 pa_context *context;
200 } pulse_data;
201
202 typedef struct {
203 char *name;
204 char *device_name;
205 } DevMap;
206
207
208 static DevMap *allDevNameMap;
209 static ALuint numDevNames;
210 static DevMap *allCaptureDevNameMap;
211 static ALuint numCaptureDevNames;
212 static pa_context_flags_t pulse_ctx_flags;
213
214
215 static ALCboolean pulse_load(void) //{{{
216 {
217 ALCboolean ret = ALC_TRUE;
218 #ifdef HAVE_DYNLOAD
219 if(!pa_handle)
220 {
221 #ifdef _WIN32
222 #define PALIB "libpulse-0.dll"
223 #elif defined(__APPLE__) && defined(__MACH__)
224 #define PALIB "libpulse.0.dylib"
225 #else
226 #define PALIB "libpulse.so.0"
227 #endif
228 pa_handle = LoadLib(PALIB);
229 if(!pa_handle)
230 return ALC_FALSE;
231
232 #define LOAD_FUNC(x) do { \
233 p##x = GetSymbol(pa_handle, #x); \
234 if(!(p##x)) { \
235 ret = ALC_FALSE; \
236 } \
237 } while(0)
238 LOAD_FUNC(pa_context_unref);
239 LOAD_FUNC(pa_sample_spec_valid);
240 LOAD_FUNC(pa_stream_drop);
241 LOAD_FUNC(pa_frame_size);
242 LOAD_FUNC(pa_strerror);
243 LOAD_FUNC(pa_context_get_state);
244 LOAD_FUNC(pa_stream_get_state);
245 LOAD_FUNC(pa_threaded_mainloop_signal);
246 LOAD_FUNC(pa_stream_peek);
247 LOAD_FUNC(pa_threaded_mainloop_wait);
248 LOAD_FUNC(pa_threaded_mainloop_unlock);
249 LOAD_FUNC(pa_threaded_mainloop_in_thread);
250 LOAD_FUNC(pa_context_new);
251 LOAD_FUNC(pa_threaded_mainloop_stop);
252 LOAD_FUNC(pa_context_disconnect);
253 LOAD_FUNC(pa_threaded_mainloop_start);
254 LOAD_FUNC(pa_threaded_mainloop_get_api);
255 LOAD_FUNC(pa_context_set_state_callback);
256 LOAD_FUNC(pa_stream_write);
257 LOAD_FUNC(pa_xfree);
258 LOAD_FUNC(pa_stream_connect_record);
259 LOAD_FUNC(pa_stream_connect_playback);
260 LOAD_FUNC(pa_stream_readable_size);
261 LOAD_FUNC(pa_stream_writable_size);
262 LOAD_FUNC(pa_stream_cork);
263 LOAD_FUNC(pa_stream_is_suspended);
264 LOAD_FUNC(pa_stream_get_device_name);
265 LOAD_FUNC(pa_path_get_filename);
266 LOAD_FUNC(pa_get_binary_name);
267 LOAD_FUNC(pa_threaded_mainloop_free);
268 LOAD_FUNC(pa_context_errno);
269 LOAD_FUNC(pa_xmalloc);
270 LOAD_FUNC(pa_stream_unref);
271 LOAD_FUNC(pa_threaded_mainloop_accept);
272 LOAD_FUNC(pa_stream_set_write_callback);
273 LOAD_FUNC(pa_threaded_mainloop_new);
274 LOAD_FUNC(pa_context_connect);
275 LOAD_FUNC(pa_stream_set_buffer_attr);
276 LOAD_FUNC(pa_stream_get_buffer_attr);
277 LOAD_FUNC(pa_stream_get_sample_spec);
278 LOAD_FUNC(pa_stream_get_time);
279 LOAD_FUNC(pa_stream_set_read_callback);
280 LOAD_FUNC(pa_stream_set_state_callback);
281 LOAD_FUNC(pa_stream_set_moved_callback);
282 LOAD_FUNC(pa_stream_set_underflow_callback);
283 LOAD_FUNC(pa_stream_new);
284 LOAD_FUNC(pa_stream_disconnect);
285 LOAD_FUNC(pa_threaded_mainloop_lock);
286 LOAD_FUNC(pa_channel_map_init_auto);
287 LOAD_FUNC(pa_channel_map_parse);
288 LOAD_FUNC(pa_channel_map_snprint);
289 LOAD_FUNC(pa_channel_map_equal);
290 LOAD_FUNC(pa_context_get_server_info);
291 LOAD_FUNC(pa_context_get_sink_info_by_name);
292 LOAD_FUNC(pa_context_get_sink_info_list);
293 LOAD_FUNC(pa_context_get_source_info_by_name);
294 LOAD_FUNC(pa_context_get_source_info_list);
295 LOAD_FUNC(pa_operation_get_state);
296 LOAD_FUNC(pa_operation_unref);
297 #undef LOAD_FUNC
298 #define LOAD_OPTIONAL_FUNC(x) do { \
299 p##x = GetSymbol(pa_handle, #x); \
300 } while(0)
301 #if PA_CHECK_VERSION(0,9,15)
302 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
303 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
304 #endif
305 #if PA_CHECK_VERSION(0,9,16)
306 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
307 #endif
308 #undef LOAD_OPTIONAL_FUNC
309
310 if(ret == ALC_FALSE)
311 {
312 CloseLib(pa_handle);
313 pa_handle = NULL;
314 }
315 }
316 #endif /* HAVE_DYNLOAD */
317 return ret;
318 } //}}}
319
320 // PulseAudio Event Callbacks //{{{
321 static void context_state_callback(pa_context *context, void *pdata)
322 {
323 pa_threaded_mainloop *loop = pdata;
324 pa_context_state_t state;
325
326 state = pa_context_get_state(context);
327 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
328 pa_threaded_mainloop_signal(loop, 0);
329 }
330
331 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
332 {
333 pa_threaded_mainloop *loop = pdata;
334 pa_stream_state_t state;
335
336 state = pa_stream_get_state(stream);
337 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
338 pa_threaded_mainloop_signal(loop, 0);
339 }//}}}
340
341 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
342 {
343 ALCdevice *device = pdata;
344 pulse_data *data = device->ExtraData;
345
346 data->attr = *pa_stream_get_buffer_attr(stream);
347 TRACE("minreq=%d, tlength=%d, prebuf=%d\n", data->attr.minreq, data->attr.tlength, data->attr.prebuf);
348 }//}}}
349
350 static void context_state_callback2(pa_context *context, void *pdata) //{{{
351 {
352 ALCdevice *Device = pdata;
353 pulse_data *data = Device->ExtraData;
354
355 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
356 {
357 ERR("Received context failure!\n");
358 aluHandleDisconnect(Device);
359 }
360 pa_threaded_mainloop_signal(data->loop, 0);
361 }//}}}
362
363 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
364 {
365 ALCdevice *Device = pdata;
366 pulse_data *data = Device->ExtraData;
367
368 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
369 {
370 ERR("Received stream failure!\n");
371 aluHandleDisconnect(Device);
372 }
373 pa_threaded_mainloop_signal(data->loop, 0);
374 }//}}}
375
376 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
377 {
378 ALCdevice *Device = pdata;
379 pulse_data *data = Device->ExtraData;
380 (void)stream;
381 (void)success;
382
383 pa_threaded_mainloop_signal(data->loop, 0);
384 }//}}}
385
386 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
387 {
388 ALCdevice *device = pdata;
389 pulse_data *data = device->ExtraData;
390 char chanmap_str[256] = "";
391 const struct {
392 const char *str;
393 enum DevFmtChannels chans;
394 } chanmaps[] = {
395 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
396 DevFmtX71 },
397 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
398 DevFmtX61 },
399 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
400 DevFmtX51 },
401 { "front-left,front-right,front-center,lfe,side-left,side-right",
402 DevFmtX51Side },
403 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
404 { "front-left,front-right", DevFmtStereo },
405 { "mono", DevFmtMono },
406 { NULL, 0 }
407 };
408 int i;
409 (void)context;
410
411 if(eol)
412 {
413 pa_threaded_mainloop_signal(data->loop, 0);
414 return;
415 }
416
417 for(i = 0;chanmaps[i].str;i++)
418 {
419 pa_channel_map map;
420 if(!pa_channel_map_parse(&map, chanmaps[i].str))
421 continue;
422
423 if(pa_channel_map_equal(&info->channel_map, &map)
424 #if PA_CHECK_VERSION(0,9,15)
425 || (pa_channel_map_superset &&
426 pa_channel_map_superset(&info->channel_map, &map))
427 #endif
428 )
429 {
430 device->FmtChans = chanmaps[i].chans;
431 return;
432 }
433 }
434
435 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
436 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
437 }//}}}
438
439 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
440 {
441 pa_threaded_mainloop *loop = pdata;
442 void *temp;
443 ALuint i;
444
445 (void)context;
446
447 if(eol)
448 {
449 pa_threaded_mainloop_signal(loop, 0);
450 return;
451 }
452
453 for(i = 0;i < numDevNames;i++)
454 {
455 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
456 return;
457 }
458
459 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
460
461 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
462 if(temp)
463 {
464 allDevNameMap = temp;
465 allDevNameMap[numDevNames].name = strdup(info->description);
466 allDevNameMap[numDevNames].device_name = strdup(info->name);
467 numDevNames++;
468 }
469 }//}}}
470
471 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
472 {
473 pa_threaded_mainloop *loop = pdata;
474 void *temp;
475 ALuint i;
476
477 (void)context;
478
479 if(eol)
480 {
481 pa_threaded_mainloop_signal(loop, 0);
482 return;
483 }
484
485 for(i = 0;i < numCaptureDevNames;i++)
486 {
487 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
488 return;
489 }
490
491 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
492
493 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
494 if(temp)
495 {
496 allCaptureDevNameMap = temp;
497 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
498 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
499 numCaptureDevNames++;
500 }
501 }//}}}
502
503 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
504 {
505 ALCdevice *device = pdata;
506 pulse_data *data = device->ExtraData;
507 (void)context;
508
509 if(eol)
510 {
511 pa_threaded_mainloop_signal(data->loop, 0);
512 return;
513 }
514
515 free(device->szDeviceName);
516 device->szDeviceName = strdup(info->description);
517 }
518
519 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
520 {
521 ALCdevice *device = pdata;
522 pulse_data *data = device->ExtraData;
523 (void)context;
524
525 if(eol)
526 {
527 pa_threaded_mainloop_signal(data->loop, 0);
528 return;
529 }
530
531 free(device->szDeviceName);
532 device->szDeviceName = strdup(info->description);
533 }
534 //}}}
535
536
537 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
538 {
539 const char *name = "OpenAL Soft";
540 char path_name[PATH_MAX];
541 pa_context_state_t state;
542 pa_context *context;
543 int err;
544
545 if(pa_get_binary_name(path_name, sizeof(path_name)))
546 name = pa_path_get_filename(path_name);
547
548 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
549 if(!context)
550 {
551 ERR("pa_context_new() failed\n");
552 return NULL;
553 }
554
555 pa_context_set_state_callback(context, context_state_callback, loop);
556
557 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
558 {
559 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
560 {
561 if(!PA_CONTEXT_IS_GOOD(state))
562 {
563 err = pa_context_errno(context);
564 if(err > 0) err = -err;
565 break;
566 }
567
568 pa_threaded_mainloop_wait(loop);
569 }
570 }
571 pa_context_set_state_callback(context, NULL, NULL);
572
573 if(err < 0)
574 {
575 if(!silent)
576 ERR("Context did not connect: %s\n", pa_strerror(err));
577 pa_context_unref(context);
578 return NULL;
579 }
580
581 return context;
582 }
583
584 static pa_stream *connect_playback_stream(const char *device_name,
585 pa_threaded_mainloop *loop, pa_context *context,
586 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
587 pa_channel_map *chanmap)
588 {
589 pa_stream_state_t state;
590 pa_stream *stream;
591
592 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
593 if(!stream)
594 {
595 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
596 return NULL;
597 }
598
599 pa_stream_set_state_callback(stream, stream_state_callback, loop);
600
601 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
602 {
603 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
604 pa_stream_unref(stream);
605 return NULL;
606 }
607
608 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
609 {
610 if(!PA_STREAM_IS_GOOD(state))
611 {
612 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
613 pa_stream_unref(stream);
614 return NULL;
615 }
616
617 pa_threaded_mainloop_wait(loop);
618 }
619 pa_stream_set_state_callback(stream, NULL, NULL);
620
621 return stream;
622 }
623
624 static pa_stream *connect_record_stream(const char *device_name,
625 pa_threaded_mainloop *loop, pa_context *context,
626 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
627 pa_channel_map *chanmap)
628 {
629 pa_stream_state_t state;
630 pa_stream *stream;
631
632 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
633 if(!stream)
634 {
635 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
636 return NULL;
637 }
638
639 pa_stream_set_state_callback(stream, stream_state_callback, loop);
640
641 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
642 {
643 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
644 pa_stream_unref(stream);
645 return NULL;
646 }
647
648 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
649 {
650 if(!PA_STREAM_IS_GOOD(state))
651 {
652 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
653 pa_stream_unref(stream);
654 return NULL;
655 }
656
657 pa_threaded_mainloop_wait(loop);
658 }
659 pa_stream_set_state_callback(stream, NULL, NULL);
660
661 return stream;
662 }
663
664
665 static void probe_devices(ALboolean capture)
666 {
667 pa_threaded_mainloop *loop;
668
669 if(capture == AL_FALSE)
670 allDevNameMap = malloc(sizeof(DevMap) * 1);
671 else
672 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
673
674 if((loop=pa_threaded_mainloop_new()) &&
675 pa_threaded_mainloop_start(loop) >= 0)
676 {
677 pa_context *context;
678
679 pa_threaded_mainloop_lock(loop);
680 context = connect_context(loop, AL_FALSE);
681 if(context)
682 {
683 pa_operation *o;
684
685 if(capture == AL_FALSE)
686 {
687 pa_stream_flags_t flags;
688 pa_sample_spec spec;
689 pa_stream *stream;
690
691 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
692 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
693
694 spec.format = PA_SAMPLE_S16NE;
695 spec.rate = 44100;
696 spec.channels = 2;
697
698 stream = connect_playback_stream(NULL, loop, context, flags,
699 NULL, &spec, NULL);
700 if(stream)
701 {
702 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
703 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
704 pa_threaded_mainloop_wait(loop);
705 pa_operation_unref(o);
706
707 pa_stream_disconnect(stream);
708 pa_stream_unref(stream);
709 stream = NULL;
710 }
711
712 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
713 }
714 else
715 {
716 pa_stream_flags_t flags;
717 pa_sample_spec spec;
718 pa_stream *stream;
719
720 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
721 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
722
723 spec.format = PA_SAMPLE_S16NE;
724 spec.rate = 44100;
725 spec.channels = 1;
726
727 stream = connect_record_stream(NULL, loop, context, flags,
728 NULL, &spec, NULL);
729 if(stream)
730 {
731 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
732 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
733 pa_threaded_mainloop_wait(loop);
734 pa_operation_unref(o);
735
736 pa_stream_disconnect(stream);
737 pa_stream_unref(stream);
738 stream = NULL;
739 }
740
741 o = pa_context_get_source_info_list(context, source_device_callback, loop);
742 }
743 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
744 pa_threaded_mainloop_wait(loop);
745 pa_operation_unref(o);
746
747 pa_context_disconnect(context);
748 pa_context_unref(context);
749 }
750 pa_threaded_mainloop_unlock(loop);
751 pa_threaded_mainloop_stop(loop);
752 }
753 if(loop)
754 pa_threaded_mainloop_free(loop);
755 }
756
757
758 static ALuint PulseProc(ALvoid *param)
759 {
760 ALCdevice *Device = param;
761 pulse_data *data = Device->ExtraData;
762 ALuint buffer_size;
763 ALint update_size;
764 size_t frame_size;
765 ssize_t len;
766
767 SetRTPriority();
768
769 pa_threaded_mainloop_lock(data->loop);
770 frame_size = pa_frame_size(&data->spec);
771 update_size = Device->UpdateSize * frame_size;
772 buffer_size = update_size * Device->NumUpdates;
773 do {
774 len = pa_stream_writable_size(data->stream) - data->attr.tlength +
775 buffer_size;
776 if(len < update_size)
777 {
778 pa_threaded_mainloop_unlock(data->loop);
779 Sleep(1);
780 pa_threaded_mainloop_lock(data->loop);
781 continue;
782 }
783 len -= len%update_size;
784
785 while(len > 0)
786 {
787 size_t newlen = len;
788 void *buf;
789 pa_free_cb_t free_func = NULL;
790
791 #if PA_CHECK_VERSION(0,9,16)
792 if(!pa_stream_begin_write ||
793 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
794 #endif
795 {
796 buf = pa_xmalloc(newlen);
797 free_func = pa_xfree;
798 }
799 pa_threaded_mainloop_unlock(data->loop);
800
801 aluMixData(Device, buf, newlen/frame_size);
802
803 pa_threaded_mainloop_lock(data->loop);
804 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
805 len -= newlen;
806 }
807 } while(!data->killNow && Device->Connected);
808 pa_threaded_mainloop_unlock(data->loop);
809
810 return 0;
811 }
812
813
814 static ALCboolean pulse_open(ALCdevice *device) //{{{
815 {
816 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
817 memset(data, 0, sizeof(*data));
818
819 if(!(data->loop = pa_threaded_mainloop_new()))
820 {
821 ERR("pa_threaded_mainloop_new() failed!\n");
822 goto out;
823 }
824 if(pa_threaded_mainloop_start(data->loop) < 0)
825 {
826 ERR("pa_threaded_mainloop_start() failed\n");
827 goto out;
828 }
829
830 pa_threaded_mainloop_lock(data->loop);
831 device->ExtraData = data;
832
833 data->context = connect_context(data->loop, AL_FALSE);
834 if(!data->context)
835 {
836 pa_threaded_mainloop_unlock(data->loop);
837 goto out;
838 }
839 pa_context_set_state_callback(data->context, context_state_callback2, device);
840
841 pa_threaded_mainloop_unlock(data->loop);
842 return ALC_TRUE;
843
844 out:
845 if(data->loop)
846 {
847 pa_threaded_mainloop_stop(data->loop);
848 pa_threaded_mainloop_free(data->loop);
849 }
850
851 device->ExtraData = NULL;
852 pa_xfree(data);
853 return ALC_FALSE;
854 } //}}}
855
856 static void pulse_close(ALCdevice *device) //{{{
857 {
858 pulse_data *data = device->ExtraData;
859
860 pa_threaded_mainloop_lock(data->loop);
861
862 if(data->stream)
863 {
864 pa_stream_disconnect(data->stream);
865 pa_stream_unref(data->stream);
866 }
867
868 pa_context_disconnect(data->context);
869 pa_context_unref(data->context);
870
871 pa_threaded_mainloop_unlock(data->loop);
872
873 pa_threaded_mainloop_stop(data->loop);
874 pa_threaded_mainloop_free(data->loop);
875
876 free(data->device_name);
877
878 device->ExtraData = NULL;
879 pa_xfree(data);
880 } //}}}
881 //}}}
882
883 // OpenAL {{{
884 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
885 {
886 const char *pulse_name = NULL;
887 pa_stream_flags_t flags;
888 pa_sample_spec spec;
889 pulse_data *data;
890 pa_operation *o;
891
892 if(device_name)
893 {
894 ALuint i;
895
896 if(!allDevNameMap)
897 probe_devices(AL_FALSE);
898
899 for(i = 0;i < numDevNames;i++)
900 {
901 if(strcmp(device_name, allDevNameMap[i].name) == 0)
902 {
903 pulse_name = allDevNameMap[i].device_name;
904 break;
905 }
906 }
907 if(i == numDevNames)
908 return ALC_INVALID_VALUE;
909 }
910
911 if(pulse_open(device) == ALC_FALSE)
912 return ALC_INVALID_VALUE;
913
914 data = device->ExtraData;
915 pa_threaded_mainloop_lock(data->loop);
916
917 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
918 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
919
920 spec.format = PA_SAMPLE_S16NE;
921 spec.rate = 44100;
922 spec.channels = 2;
923
924 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
925 flags, NULL, &spec, NULL);
926 if(!data->stream)
927 {
928 pa_threaded_mainloop_unlock(data->loop);
929 pulse_close(device);
930 return ALC_INVALID_VALUE;
931 }
932
933 data->device_name = strdup(pa_stream_get_device_name(data->stream));
934 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
935 sink_name_callback, device);
936 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
937 pa_threaded_mainloop_wait(data->loop);
938 pa_operation_unref(o);
939
940 pa_threaded_mainloop_unlock(data->loop);
941
942 return ALC_NO_ERROR;
943 } //}}}
944
945 static void pulse_close_playback(ALCdevice *device) //{{{
946 {
947 pulse_close(device);
948 } //}}}
949
950 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
951 {
952 pulse_data *data = device->ExtraData;
953 pa_stream_flags_t flags = 0;
954 pa_channel_map chanmap;
955
956 pa_threaded_mainloop_lock(data->loop);
957
958 if(data->stream)
959 {
960 pa_stream_disconnect(data->stream);
961 pa_stream_unref(data->stream);
962 data->stream = NULL;
963 }
964
965 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
966 {
967 pa_operation *o;
968 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
969 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
970 pa_threaded_mainloop_wait(data->loop);
971 pa_operation_unref(o);
972 }
973 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
974 flags |= PA_STREAM_FIX_RATE;
975
976 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
977 flags |= PA_STREAM_DONT_MOVE;
978
979 switch(device->FmtType)
980 {
981 case DevFmtByte:
982 device->FmtType = DevFmtUByte;
983 /* fall-through */
984 case DevFmtUByte:
985 data->spec.format = PA_SAMPLE_U8;
986 break;
987 case DevFmtUShort:
988 device->FmtType = DevFmtShort;
989 /* fall-through */
990 case DevFmtShort:
991 data->spec.format = PA_SAMPLE_S16NE;
992 break;
993 case DevFmtUInt:
994 device->FmtType = DevFmtInt;
995 /* fall-through */
996 case DevFmtInt:
997 data->spec.format = PA_SAMPLE_S32NE;
998 break;
999 case DevFmtFloat:
1000 data->spec.format = PA_SAMPLE_FLOAT32NE;
1001 break;
1002 }
1003 data->spec.rate = device->Frequency;
1004 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1005
1006 if(pa_sample_spec_valid(&data->spec) == 0)
1007 {
1008 ERR("Invalid sample format\n");
1009 pa_threaded_mainloop_unlock(data->loop);
1010 return ALC_FALSE;
1011 }
1012
1013 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1014 {
1015 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1016 pa_threaded_mainloop_unlock(data->loop);
1017 return ALC_FALSE;
1018 }
1019 SetDefaultWFXChannelOrder(device);
1020
1021 data->attr.fragsize = -1;
1022 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1023 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1024 data->attr.prebuf = data->attr.tlength;
1025 data->attr.maxlength = -1;
1026
1027 data->stream = connect_playback_stream(data->device_name, data->loop,
1028 data->context, flags, &data->attr,
1029 &data->spec, &chanmap);
1030 if(!data->stream)
1031 {
1032 pa_threaded_mainloop_unlock(data->loop);
1033 return ALC_FALSE;
1034 }
1035 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1036
1037 data->spec = *(pa_stream_get_sample_spec(data->stream));
1038 if(device->Frequency != data->spec.rate)
1039 {
1040 pa_operation *o;
1041
1042 /* Server updated our playback rate, so modify the buffer attribs
1043 * accordingly. */
1044 data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
1045 device->Frequency * pa_frame_size(&data->spec);
1046 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1047 data->attr.prebuf = data->attr.tlength;
1048
1049 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1050 stream_success_callback, device);
1051 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1052 pa_threaded_mainloop_wait(data->loop);
1053 pa_operation_unref(o);
1054
1055 device->Frequency = data->spec.rate;
1056 }
1057
1058 #if PA_CHECK_VERSION(0,9,15)
1059 if(pa_stream_set_buffer_attr_callback)
1060 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1061 #endif
1062 stream_buffer_attr_callback(data->stream, device);
1063
1064 data->thread = StartThread(PulseProc, device);
1065 if(!data->thread)
1066 {
1067 #if PA_CHECK_VERSION(0,9,15)
1068 if(pa_stream_set_buffer_attr_callback)
1069 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1070 #endif
1071 pa_stream_disconnect(data->stream);
1072 pa_stream_unref(data->stream);
1073 data->stream = NULL;
1074
1075 pa_threaded_mainloop_unlock(data->loop);
1076 return ALC_FALSE;
1077 }
1078
1079 pa_threaded_mainloop_unlock(data->loop);
1080 return ALC_TRUE;
1081 } //}}}
1082
1083 static void pulse_stop_playback(ALCdevice *device) //{{{
1084 {
1085 pulse_data *data = device->ExtraData;
1086
1087 if(!data->stream)
1088 return;
1089
1090 data->killNow = AL_TRUE;
1091 if(data->thread)
1092 {
1093 pa_threaded_mainloop_signal(data->loop, 0);
1094 StopThread(data->thread);
1095 data->thread = NULL;
1096 }
1097 data->killNow = AL_FALSE;
1098
1099 pa_threaded_mainloop_lock(data->loop);
1100
1101 #if PA_CHECK_VERSION(0,9,15)
1102 if(pa_stream_set_buffer_attr_callback)
1103 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1104 #endif
1105 pa_stream_set_write_callback(data->stream, NULL, NULL);
1106 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1107 pa_stream_disconnect(data->stream);
1108 pa_stream_unref(data->stream);
1109 data->stream = NULL;
1110
1111 pa_threaded_mainloop_unlock(data->loop);
1112 } //}}}
1113
1114
1115 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1116 {
1117 const char *pulse_name = NULL;
1118 pa_stream_flags_t flags = 0;
1119 pa_channel_map chanmap;
1120 pulse_data *data;
1121 pa_operation *o;
1122 ALuint samples;
1123
1124 if(device_name)
1125 {
1126 ALuint i;
1127
1128 if(!allCaptureDevNameMap)
1129 probe_devices(AL_TRUE);
1130
1131 for(i = 0;i < numCaptureDevNames;i++)
1132 {
1133 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1134 {
1135 pulse_name = allCaptureDevNameMap[i].device_name;
1136 break;
1137 }
1138 }
1139 if(i == numCaptureDevNames)
1140 return ALC_INVALID_VALUE;
1141 }
1142
1143 if(pulse_open(device) == ALC_FALSE)
1144 return ALC_INVALID_VALUE;
1145
1146 data = device->ExtraData;
1147 pa_threaded_mainloop_lock(data->loop);
1148
1149 data->spec.rate = device->Frequency;
1150 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1151
1152 switch(device->FmtType)
1153 {
1154 case DevFmtUByte:
1155 data->spec.format = PA_SAMPLE_U8;
1156 break;
1157 case DevFmtShort:
1158 data->spec.format = PA_SAMPLE_S16NE;
1159 break;
1160 case DevFmtInt:
1161 data->spec.format = PA_SAMPLE_S32NE;
1162 break;
1163 case DevFmtFloat:
1164 data->spec.format = PA_SAMPLE_FLOAT32NE;
1165 break;
1166 case DevFmtByte:
1167 case DevFmtUShort:
1168 case DevFmtUInt:
1169 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1170 pa_threaded_mainloop_unlock(data->loop);
1171 goto fail;
1172 }
1173
1174 if(pa_sample_spec_valid(&data->spec) == 0)
1175 {
1176 ERR("Invalid sample format\n");
1177 pa_threaded_mainloop_unlock(data->loop);
1178 goto fail;
1179 }
1180
1181 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1182 {
1183 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1184 pa_threaded_mainloop_unlock(data->loop);
1185 goto fail;
1186 }
1187
1188 samples = device->UpdateSize * device->NumUpdates;
1189 samples = maxu(samples, 100 * device->Frequency / 1000);
1190
1191 data->attr.minreq = -1;
1192 data->attr.prebuf = -1;
1193 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1194 data->attr.tlength = -1;
1195 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1196 pa_frame_size(&data->spec);
1197
1198 flags |= PA_STREAM_DONT_MOVE;
1199 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1200 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1201 flags, &data->attr, &data->spec,
1202 &chanmap);
1203 if(!data->stream)
1204 {
1205 pa_threaded_mainloop_unlock(data->loop);
1206 goto fail;
1207 }
1208 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1209
1210 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1211 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1212 source_name_callback, device);
1213 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1214 pa_threaded_mainloop_wait(data->loop);
1215 pa_operation_unref(o);
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 *func_list = pulse_funcs;
1366 ret = ALC_TRUE;
1367
1368 pa_context_disconnect(context);
1369 pa_context_unref(context);
1370 }
1371 pa_threaded_mainloop_unlock(loop);
1372 pa_threaded_mainloop_stop(loop);
1373 }
1374 if(loop)
1375 pa_threaded_mainloop_free(loop);
1376 }
1377
1378 return ret;
1379 } //}}}
1380
1381 void alc_pulse_deinit(void) //{{{
1382 {
1383 ALuint i;
1384
1385 for(i = 0;i < numDevNames;++i)
1386 {
1387 free(allDevNameMap[i].name);
1388 free(allDevNameMap[i].device_name);
1389 }
1390 free(allDevNameMap);
1391 allDevNameMap = NULL;
1392 numDevNames = 0;
1393
1394 for(i = 0;i < numCaptureDevNames;++i)
1395 {
1396 free(allCaptureDevNameMap[i].name);
1397 free(allCaptureDevNameMap[i].device_name);
1398 }
1399 free(allCaptureDevNameMap);
1400 allCaptureDevNameMap = NULL;
1401 numCaptureDevNames = 0;
1402
1403 #ifdef HAVE_DYNLOAD
1404 if(pa_handle)
1405 CloseLib(pa_handle);
1406 pa_handle = NULL;
1407 #endif
1408 } //}}}
1409
1410 void alc_pulse_probe(enum DevProbe type) //{{{
1411 {
1412 ALuint i;
1413
1414 switch(type)
1415 {
1416 case ALL_DEVICE_PROBE:
1417 for(i = 0;i < numDevNames;++i)
1418 {
1419 free(allDevNameMap[i].name);
1420 free(allDevNameMap[i].device_name);
1421 }
1422 free(allDevNameMap);
1423 allDevNameMap = NULL;
1424 numDevNames = 0;
1425
1426 probe_devices(AL_FALSE);
1427
1428 for(i = 0;i < numDevNames;i++)
1429 AppendAllDeviceList(allDevNameMap[i].name);
1430 break;
1431
1432 case CAPTURE_DEVICE_PROBE:
1433 for(i = 0;i < numCaptureDevNames;++i)
1434 {
1435 free(allCaptureDevNameMap[i].name);
1436 free(allCaptureDevNameMap[i].device_name);
1437 }
1438 free(allCaptureDevNameMap);
1439 allCaptureDevNameMap = NULL;
1440 numCaptureDevNames = 0;
1441
1442 probe_devices(AL_TRUE);
1443
1444 for(i = 0;i < numCaptureDevNames;i++)
1445 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1446 break;
1447 }
1448 } //}}}
1449 //}}}
1450
1451 #else
1452
1453 #warning "Unsupported API version, backend will be unavailable!"
1454
1455 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1456 { return ALC_FALSE; (void)func_list; }
1457
1458 void alc_pulse_deinit(void)
1459 { }
1460
1461 void alc_pulse_probe(enum DevProbe type)
1462 { (void)type; }
1463
1464 #endif
Software OpenAL implementation