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Don't define lib handles when dynamic loading is disabled
[openal-soft.git] / Alc / backends / pulseaudio.c
blobe6d548350ef1793bff3148b7b72197bac2f39fc3
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 void context_state_callback(pa_context *context, void *pdata)
216 {
217 pa_threaded_mainloop *loop = pdata;
218 pa_context_state_t state;
219
220 state = pa_context_get_state(context);
221 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
222 pa_threaded_mainloop_signal(loop, 0);
223 }
224
225 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
226 {
227 const char *name = "OpenAL Soft";
228 char path_name[PATH_MAX];
229 pa_context_state_t state;
230 pa_context *context;
231 int err;
232
233 if(pa_get_binary_name(path_name, sizeof(path_name)))
234 name = pa_path_get_filename(path_name);
235
236 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
237 if(!context)
238 {
239 ERR("pa_context_new() failed\n");
240 return NULL;
241 }
242
243 pa_context_set_state_callback(context, context_state_callback, loop);
244
245 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
246 {
247 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
248 {
249 if(!PA_CONTEXT_IS_GOOD(state))
250 {
251 err = pa_context_errno(context);
252 if(err > 0) err = -err;
253 break;
254 }
255
256 pa_threaded_mainloop_wait(loop);
257 }
258 }
259 pa_context_set_state_callback(context, NULL, NULL);
260
261 if(err < 0)
262 {
263 if(!silent)
264 ERR("Context did not connect: %s\n", pa_strerror(err));
265 pa_context_unref(context);
266 return NULL;
267 }
268
269 return context;
270 }
271
272
273 static ALCboolean pulse_load(void) //{{{
274 {
275 ALCboolean ret = ALC_TRUE;
276 #ifdef HAVE_DYNLOAD
277 if(!pa_handle)
278 {
279 #ifdef _WIN32
280 #define PALIB "libpulse-0.dll"
281 #elif defined(__APPLE__) && defined(__MACH__)
282 #define PALIB "libpulse.0.dylib"
283 #else
284 #define PALIB "libpulse.so.0"
285 #endif
286 pa_handle = LoadLib(PALIB);
287 if(!pa_handle)
288 return ALC_FALSE;
289
290 #define LOAD_FUNC(x) do { \
291 p##x = GetSymbol(pa_handle, #x); \
292 if(!(p##x)) { \
293 ret = ALC_FALSE; \
294 } \
295 } while(0)
296 LOAD_FUNC(pa_context_unref);
297 LOAD_FUNC(pa_sample_spec_valid);
298 LOAD_FUNC(pa_stream_drop);
299 LOAD_FUNC(pa_frame_size);
300 LOAD_FUNC(pa_strerror);
301 LOAD_FUNC(pa_context_get_state);
302 LOAD_FUNC(pa_stream_get_state);
303 LOAD_FUNC(pa_threaded_mainloop_signal);
304 LOAD_FUNC(pa_stream_peek);
305 LOAD_FUNC(pa_threaded_mainloop_wait);
306 LOAD_FUNC(pa_threaded_mainloop_unlock);
307 LOAD_FUNC(pa_threaded_mainloop_in_thread);
308 LOAD_FUNC(pa_context_new);
309 LOAD_FUNC(pa_threaded_mainloop_stop);
310 LOAD_FUNC(pa_context_disconnect);
311 LOAD_FUNC(pa_threaded_mainloop_start);
312 LOAD_FUNC(pa_threaded_mainloop_get_api);
313 LOAD_FUNC(pa_context_set_state_callback);
314 LOAD_FUNC(pa_stream_write);
315 LOAD_FUNC(pa_xfree);
316 LOAD_FUNC(pa_stream_connect_record);
317 LOAD_FUNC(pa_stream_connect_playback);
318 LOAD_FUNC(pa_stream_readable_size);
319 LOAD_FUNC(pa_stream_writable_size);
320 LOAD_FUNC(pa_stream_cork);
321 LOAD_FUNC(pa_stream_is_suspended);
322 LOAD_FUNC(pa_stream_get_device_name);
323 LOAD_FUNC(pa_path_get_filename);
324 LOAD_FUNC(pa_get_binary_name);
325 LOAD_FUNC(pa_threaded_mainloop_free);
326 LOAD_FUNC(pa_context_errno);
327 LOAD_FUNC(pa_xmalloc);
328 LOAD_FUNC(pa_stream_unref);
329 LOAD_FUNC(pa_threaded_mainloop_accept);
330 LOAD_FUNC(pa_stream_set_write_callback);
331 LOAD_FUNC(pa_threaded_mainloop_new);
332 LOAD_FUNC(pa_context_connect);
333 LOAD_FUNC(pa_stream_set_buffer_attr);
334 LOAD_FUNC(pa_stream_get_buffer_attr);
335 LOAD_FUNC(pa_stream_get_sample_spec);
336 LOAD_FUNC(pa_stream_get_time);
337 LOAD_FUNC(pa_stream_set_read_callback);
338 LOAD_FUNC(pa_stream_set_state_callback);
339 LOAD_FUNC(pa_stream_set_moved_callback);
340 LOAD_FUNC(pa_stream_set_underflow_callback);
341 LOAD_FUNC(pa_stream_new);
342 LOAD_FUNC(pa_stream_disconnect);
343 LOAD_FUNC(pa_threaded_mainloop_lock);
344 LOAD_FUNC(pa_channel_map_init_auto);
345 LOAD_FUNC(pa_channel_map_parse);
346 LOAD_FUNC(pa_channel_map_snprint);
347 LOAD_FUNC(pa_channel_map_equal);
348 LOAD_FUNC(pa_context_get_server_info);
349 LOAD_FUNC(pa_context_get_sink_info_by_name);
350 LOAD_FUNC(pa_context_get_sink_info_list);
351 LOAD_FUNC(pa_context_get_source_info_by_name);
352 LOAD_FUNC(pa_context_get_source_info_list);
353 LOAD_FUNC(pa_operation_get_state);
354 LOAD_FUNC(pa_operation_unref);
355 #undef LOAD_FUNC
356 #define LOAD_OPTIONAL_FUNC(x) do { \
357 p##x = GetSymbol(pa_handle, #x); \
358 } while(0)
359 #if PA_CHECK_VERSION(0,9,15)
360 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
361 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
362 #endif
363 #if PA_CHECK_VERSION(0,9,16)
364 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
365 #endif
366 #undef LOAD_OPTIONAL_FUNC
367
368 if(ret == ALC_FALSE)
369 {
370 CloseLib(pa_handle);
371 pa_handle = NULL;
372 }
373 }
374 #endif /* HAVE_DYNLOAD */
375 return ret;
376 } //}}}
377
378 // PulseAudio Event Callbacks //{{{
379 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
380 {
381 pa_threaded_mainloop *loop = pdata;
382 pa_stream_state_t state;
383
384 state = pa_stream_get_state(stream);
385 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
386 pa_threaded_mainloop_signal(loop, 0);
387 }//}}}
388
389 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
390 {
391 ALCdevice *Device = pdata;
392 pulse_data *data = Device->ExtraData;
393 (void)stream;
394
395 pa_threaded_mainloop_signal(data->loop, 0);
396 }//}}}
397
398 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
399 {
400 ALCdevice *device = pdata;
401 pulse_data *data = device->ExtraData;
402
403 data->attr = *pa_stream_get_buffer_attr(stream);
404 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", data->attr.minreq, data->attr.tlength);
405
406 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
407 device->NumUpdates = data->attr.tlength / data->attr.minreq;
408 }//}}}
409
410 static void context_state_callback2(pa_context *context, void *pdata) //{{{
411 {
412 ALCdevice *Device = pdata;
413 pulse_data *data = Device->ExtraData;
414
415 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
416 {
417 ERR("Received context failure!\n");
418 aluHandleDisconnect(Device);
419 }
420 pa_threaded_mainloop_signal(data->loop, 0);
421 }//}}}
422
423 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
424 {
425 ALCdevice *Device = pdata;
426 pulse_data *data = Device->ExtraData;
427
428 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
429 {
430 ERR("Received stream failure!\n");
431 aluHandleDisconnect(Device);
432 }
433 pa_threaded_mainloop_signal(data->loop, 0);
434 }//}}}
435
436 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
437 {
438 ALCdevice *Device = pdata;
439 pulse_data *data = Device->ExtraData;
440 (void)stream;
441 (void)success;
442
443 pa_threaded_mainloop_signal(data->loop, 0);
444 }//}}}
445
446 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
447 {
448 ALCdevice *device = pdata;
449 pulse_data *data = device->ExtraData;
450 char chanmap_str[256] = "";
451 const struct {
452 const char *str;
453 enum DevFmtChannels chans;
454 } chanmaps[] = {
455 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
456 DevFmtX71 },
457 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
458 DevFmtX61 },
459 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
460 DevFmtX51 },
461 { "front-left,front-right,front-center,lfe,side-left,side-right",
462 DevFmtX51Side },
463 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
464 { "front-left,front-right", DevFmtStereo },
465 { "mono", DevFmtMono },
466 { NULL, 0 }
467 };
468 int i;
469 (void)context;
470
471 if(eol)
472 {
473 pa_threaded_mainloop_signal(data->loop, 0);
474 return;
475 }
476
477 for(i = 0;chanmaps[i].str;i++)
478 {
479 pa_channel_map map;
480 if(!pa_channel_map_parse(&map, chanmaps[i].str))
481 continue;
482
483 if(pa_channel_map_equal(&info->channel_map, &map)
484 #if PA_CHECK_VERSION(0,9,15)
485 || (pa_channel_map_superset &&
486 pa_channel_map_superset(&info->channel_map, &map))
487 #endif
488 )
489 {
490 device->FmtChans = chanmaps[i].chans;
491 return;
492 }
493 }
494
495 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
496 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
497 }//}}}
498
499 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
500 {
501 pa_threaded_mainloop *loop = pdata;
502 void *temp;
503 ALuint i;
504
505 (void)context;
506
507 if(eol)
508 {
509 pa_threaded_mainloop_signal(loop, 0);
510 return;
511 }
512
513 for(i = 0;i < numDevNames;i++)
514 {
515 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
516 return;
517 }
518
519 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
520
521 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
522 if(temp)
523 {
524 allDevNameMap = temp;
525 allDevNameMap[numDevNames].name = strdup(info->description);
526 allDevNameMap[numDevNames].device_name = strdup(info->name);
527 numDevNames++;
528 }
529 }//}}}
530
531 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
532 {
533 pa_threaded_mainloop *loop = pdata;
534 void *temp;
535 ALuint i;
536
537 (void)context;
538
539 if(eol)
540 {
541 pa_threaded_mainloop_signal(loop, 0);
542 return;
543 }
544
545 for(i = 0;i < numCaptureDevNames;i++)
546 {
547 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
548 return;
549 }
550
551 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
552
553 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
554 if(temp)
555 {
556 allCaptureDevNameMap = temp;
557 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
558 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
559 numCaptureDevNames++;
560 }
561 }//}}}
562 //}}}
563
564
565 static pa_stream *connect_playback_stream(const char *device_name,
566 pa_threaded_mainloop *loop, pa_context *context,
567 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
568 pa_channel_map *chanmap)
569 {
570 pa_stream_state_t state;
571 pa_stream *stream;
572
573 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
574 if(!stream)
575 {
576 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
577 return NULL;
578 }
579
580 pa_stream_set_state_callback(stream, stream_state_callback, loop);
581
582 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
583 {
584 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
585 pa_stream_unref(stream);
586 return NULL;
587 }
588
589 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
590 {
591 if(!PA_STREAM_IS_GOOD(state))
592 {
593 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
594 pa_stream_unref(stream);
595 return NULL;
596 }
597
598 pa_threaded_mainloop_wait(loop);
599 }
600 pa_stream_set_state_callback(stream, NULL, NULL);
601
602 return stream;
603 }
604
605 static pa_stream *connect_record_stream(const char *device_name,
606 pa_threaded_mainloop *loop, pa_context *context,
607 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
608 pa_channel_map *chanmap)
609 {
610 pa_stream_state_t state;
611 pa_stream *stream;
612
613 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
614 if(!stream)
615 {
616 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
617 return NULL;
618 }
619
620 pa_stream_set_state_callback(stream, stream_state_callback, loop);
621
622 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
623 {
624 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
625 pa_stream_unref(stream);
626 return NULL;
627 }
628
629 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
630 {
631 if(!PA_STREAM_IS_GOOD(state))
632 {
633 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
634 pa_stream_unref(stream);
635 return NULL;
636 }
637
638 pa_threaded_mainloop_wait(loop);
639 }
640 pa_stream_set_state_callback(stream, NULL, NULL);
641
642 return stream;
643 }
644
645
646 static void probe_devices(ALboolean capture)
647 {
648 pa_threaded_mainloop *loop;
649
650 if(capture == AL_FALSE)
651 allDevNameMap = malloc(sizeof(DevMap) * 1);
652 else
653 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
654
655 if((loop=pa_threaded_mainloop_new()) &&
656 pa_threaded_mainloop_start(loop) >= 0)
657 {
658 pa_context *context;
659
660 pa_threaded_mainloop_lock(loop);
661 context = connect_context(loop, AL_FALSE);
662 if(context)
663 {
664 pa_operation *o;
665
666 if(capture == AL_FALSE)
667 {
668 pa_stream_flags_t flags;
669 pa_sample_spec spec;
670 pa_stream *stream;
671
672 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
673 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
674
675 spec.format = PA_SAMPLE_S16NE;
676 spec.rate = 44100;
677 spec.channels = 2;
678
679 stream = connect_playback_stream(NULL, loop, context, flags,
680 NULL, &spec, NULL);
681 if(stream)
682 {
683 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
684 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
685 pa_threaded_mainloop_wait(loop);
686 pa_operation_unref(o);
687
688 pa_stream_disconnect(stream);
689 pa_stream_unref(stream);
690 stream = NULL;
691 }
692
693 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
694 }
695 else
696 {
697 pa_stream_flags_t flags;
698 pa_sample_spec spec;
699 pa_stream *stream;
700
701 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
702 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
703
704 spec.format = PA_SAMPLE_S16NE;
705 spec.rate = 44100;
706 spec.channels = 1;
707
708 stream = connect_record_stream(NULL, loop, context, flags,
709 NULL, &spec, NULL);
710 if(stream)
711 {
712 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
713 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
714 pa_threaded_mainloop_wait(loop);
715 pa_operation_unref(o);
716
717 pa_stream_disconnect(stream);
718 pa_stream_unref(stream);
719 stream = NULL;
720 }
721
722 o = pa_context_get_source_info_list(context, source_device_callback, loop);
723 }
724 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
725 pa_threaded_mainloop_wait(loop);
726 pa_operation_unref(o);
727
728 pa_context_disconnect(context);
729 pa_context_unref(context);
730 }
731 pa_threaded_mainloop_unlock(loop);
732 pa_threaded_mainloop_stop(loop);
733 }
734 if(loop)
735 pa_threaded_mainloop_free(loop);
736 }
737
738
739 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata)
740 {
741 ALCdevice *Device = pdata;
742 pulse_data *data = Device->ExtraData;
743 (void)stream;
744 (void)len;
745
746 pa_threaded_mainloop_signal(data->loop, 0);
747 }
748
749 static ALuint PulseProc(ALvoid *param)
750 {
751 ALCdevice *Device = param;
752 pulse_data *data = Device->ExtraData;
753 size_t frame_size;
754 size_t len;
755
756 SetRTPriority();
757
758 frame_size = pa_frame_size(&data->spec);
759 pa_threaded_mainloop_lock(data->loop);
760 do {
761 len = pa_stream_writable_size(data->stream);
762 if(len < data->attr.minreq)
763 {
764 pa_threaded_mainloop_wait(data->loop);
765 continue;
766 }
767 len -= len%data->attr.minreq;
768
769 while(len > 0)
770 {
771 size_t newlen = len;
772 void *buf;
773 pa_free_cb_t free_func = NULL;
774
775 #if PA_CHECK_VERSION(0,9,16)
776 if(!pa_stream_begin_write ||
777 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
778 #endif
779 {
780 buf = pa_xmalloc(newlen);
781 free_func = pa_xfree;
782 }
783 pa_threaded_mainloop_unlock(data->loop);
784
785 aluMixData(Device, buf, newlen/frame_size);
786
787 pa_threaded_mainloop_lock(data->loop);
788 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
789 len -= newlen;
790 }
791 } while(!data->killNow && Device->Connected);
792 pa_threaded_mainloop_unlock(data->loop);
793
794 return 0;
795 }
796
797
798 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
799 {
800 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
801 memset(data, 0, sizeof(*data));
802
803 if(!(data->loop = pa_threaded_mainloop_new()))
804 {
805 ERR("pa_threaded_mainloop_new() failed!\n");
806 goto out;
807 }
808 if(pa_threaded_mainloop_start(data->loop) < 0)
809 {
810 ERR("pa_threaded_mainloop_start() failed\n");
811 goto out;
812 }
813
814 pa_threaded_mainloop_lock(data->loop);
815 device->ExtraData = data;
816
817 data->context = connect_context(data->loop, AL_FALSE);
818 if(!data->context)
819 {
820 pa_threaded_mainloop_unlock(data->loop);
821 goto out;
822 }
823 pa_context_set_state_callback(data->context, context_state_callback2, device);
824
825 device->szDeviceName = strdup(device_name);
826
827 pa_threaded_mainloop_unlock(data->loop);
828 return ALC_TRUE;
829
830 out:
831 if(data->loop)
832 {
833 pa_threaded_mainloop_stop(data->loop);
834 pa_threaded_mainloop_free(data->loop);
835 }
836
837 device->ExtraData = NULL;
838 pa_xfree(data);
839 return ALC_FALSE;
840 } //}}}
841
842 static void pulse_close(ALCdevice *device) //{{{
843 {
844 pulse_data *data = device->ExtraData;
845
846 pa_threaded_mainloop_lock(data->loop);
847
848 if(data->stream)
849 {
850 pa_stream_disconnect(data->stream);
851 pa_stream_unref(data->stream);
852 }
853
854 pa_context_disconnect(data->context);
855 pa_context_unref(data->context);
856
857 pa_threaded_mainloop_unlock(data->loop);
858
859 pa_threaded_mainloop_stop(data->loop);
860 pa_threaded_mainloop_free(data->loop);
861
862 free(data->device_name);
863
864 device->ExtraData = NULL;
865 pa_xfree(data);
866 } //}}}
867 //}}}
868
869 // OpenAL {{{
870 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
871 {
872 const char *pulse_name = NULL;
873 pulse_data *data;
874
875 if(!allDevNameMap)
876 probe_devices(AL_FALSE);
877
878 if(!device_name && numDevNames > 0)
879 {
880 device_name = allDevNameMap[0].name;
881 pulse_name = allDevNameMap[0].device_name;
882 }
883 else
884 {
885 ALuint i;
886
887 for(i = 0;i < numDevNames;i++)
888 {
889 if(strcmp(device_name, allDevNameMap[i].name) == 0)
890 {
891 pulse_name = allDevNameMap[i].device_name;
892 break;
893 }
894 }
895 if(i == numDevNames)
896 return ALC_INVALID_VALUE;
897 }
898
899 if(pulse_open(device, device_name) == ALC_FALSE)
900 return ALC_INVALID_VALUE;
901
902 data = device->ExtraData;
903 data->device_name = strdup(pulse_name);
904
905 return ALC_NO_ERROR;
906 } //}}}
907
908 static void pulse_close_playback(ALCdevice *device) //{{{
909 {
910 pulse_close(device);
911 } //}}}
912
913 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
914 {
915 pulse_data *data = device->ExtraData;
916 pa_stream_flags_t flags = 0;
917 pa_channel_map chanmap;
918
919 pa_threaded_mainloop_lock(data->loop);
920
921 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
922 {
923 pa_operation *o;
924 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
925 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
926 pa_threaded_mainloop_wait(data->loop);
927 pa_operation_unref(o);
928 }
929 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
930 flags |= PA_STREAM_FIX_RATE;
931
932 flags |= PA_STREAM_EARLY_REQUESTS;
933 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
934 flags |= PA_STREAM_DONT_MOVE;
935
936 switch(device->FmtType)
937 {
938 case DevFmtByte:
939 device->FmtType = DevFmtUByte;
940 /* fall-through */
941 case DevFmtUByte:
942 data->spec.format = PA_SAMPLE_U8;
943 break;
944 case DevFmtUShort:
945 device->FmtType = DevFmtShort;
946 /* fall-through */
947 case DevFmtShort:
948 data->spec.format = PA_SAMPLE_S16NE;
949 break;
950 case DevFmtUInt:
951 device->FmtType = DevFmtInt;
952 /* fall-through */
953 case DevFmtInt:
954 data->spec.format = PA_SAMPLE_S32NE;
955 break;
956 case DevFmtFloat:
957 data->spec.format = PA_SAMPLE_FLOAT32NE;
958 break;
959 }
960 data->spec.rate = device->Frequency;
961 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
962
963 if(pa_sample_spec_valid(&data->spec) == 0)
964 {
965 ERR("Invalid sample format\n");
966 pa_threaded_mainloop_unlock(data->loop);
967 return ALC_FALSE;
968 }
969
970 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
971 {
972 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
973 pa_threaded_mainloop_unlock(data->loop);
974 return ALC_FALSE;
975 }
976 SetDefaultWFXChannelOrder(device);
977
978 data->attr.prebuf = -1;
979 data->attr.fragsize = -1;
980 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
981 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
982 data->attr.maxlength = -1;
983
984 data->stream = connect_playback_stream(data->device_name, data->loop,
985 data->context, flags, &data->attr,
986 &data->spec, &chanmap);
987 if(!data->stream)
988 {
989 pa_threaded_mainloop_unlock(data->loop);
990 return ALC_FALSE;
991 }
992
993 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
994
995 data->spec = *(pa_stream_get_sample_spec(data->stream));
996 if(device->Frequency != data->spec.rate)
997 {
998 size_t frame_size = pa_frame_size(&data->spec);
999 pa_operation *o;
1000
1001 /* Server updated our playback rate, so modify the buffer attribs
1002 * accordingly. */
1003 data->attr.minreq = (ALuint64)(data->attr.minreq/frame_size) *
1004 data->spec.rate / device->Frequency * frame_size;
1005 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1006
1007 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1008 stream_success_callback, device);
1009 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1010 pa_threaded_mainloop_wait(data->loop);
1011 pa_operation_unref(o);
1012
1013 device->Frequency = data->spec.rate;
1014 }
1015
1016 #if PA_CHECK_VERSION(0,9,15)
1017 if(pa_stream_set_buffer_attr_callback)
1018 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1019 #endif
1020 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1021 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1022
1023 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1024 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1025 device->NumUpdates = data->attr.tlength / data->attr.minreq;
1026 if(device->NumUpdates <= 1)
1027 {
1028 pa_operation *o;
1029
1030 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1031
1032 /* Server gave a comparatively large minreq, so modify the tlength. */
1033 device->NumUpdates = 2;
1034 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1035
1036 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1037 stream_success_callback, device);
1038 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1039 pa_threaded_mainloop_wait(data->loop);
1040 pa_operation_unref(o);
1041 }
1042
1043 data->thread = StartThread(PulseProc, device);
1044 if(!data->thread)
1045 {
1046 #if PA_CHECK_VERSION(0,9,15)
1047 if(pa_stream_set_buffer_attr_callback)
1048 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1049 #endif
1050 pa_stream_set_write_callback(data->stream, NULL, NULL);
1051 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1052 pa_stream_disconnect(data->stream);
1053 pa_stream_unref(data->stream);
1054 data->stream = NULL;
1055
1056 pa_threaded_mainloop_unlock(data->loop);
1057 return ALC_FALSE;
1058 }
1059
1060 pa_threaded_mainloop_unlock(data->loop);
1061 return ALC_TRUE;
1062 } //}}}
1063
1064 static void pulse_stop_playback(ALCdevice *device) //{{{
1065 {
1066 pulse_data *data = device->ExtraData;
1067
1068 if(!data->stream)
1069 return;
1070
1071 data->killNow = AL_TRUE;
1072 if(data->thread)
1073 {
1074 pa_threaded_mainloop_signal(data->loop, 0);
1075 StopThread(data->thread);
1076 data->thread = NULL;
1077 }
1078 data->killNow = AL_FALSE;
1079
1080 pa_threaded_mainloop_lock(data->loop);
1081
1082 #if PA_CHECK_VERSION(0,9,15)
1083 if(pa_stream_set_buffer_attr_callback)
1084 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1085 #endif
1086 pa_stream_set_write_callback(data->stream, NULL, NULL);
1087 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1088 pa_stream_disconnect(data->stream);
1089 pa_stream_unref(data->stream);
1090 data->stream = NULL;
1091
1092 pa_threaded_mainloop_unlock(data->loop);
1093 } //}}}
1094
1095
1096 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1097 {
1098 const char *pulse_name = NULL;
1099 pa_stream_flags_t flags = 0;
1100 pa_channel_map chanmap;
1101 pulse_data *data;
1102 ALuint samples;
1103
1104 if(!allCaptureDevNameMap)
1105 probe_devices(AL_TRUE);
1106
1107 if(!device_name && numCaptureDevNames > 0)
1108 {
1109 device_name = allCaptureDevNameMap[0].name;
1110 pulse_name = allCaptureDevNameMap[0].device_name;
1111 }
1112 else
1113 {
1114 ALuint i;
1115 for(i = 0;i < numCaptureDevNames;i++)
1116 {
1117 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1118 {
1119 pulse_name = allCaptureDevNameMap[i].device_name;
1120 break;
1121 }
1122 }
1123 if(i == numCaptureDevNames)
1124 return ALC_INVALID_VALUE;
1125 }
1126
1127 if(pulse_open(device, device_name) == ALC_FALSE)
1128 return ALC_INVALID_VALUE;
1129
1130 data = device->ExtraData;
1131 pa_threaded_mainloop_lock(data->loop);
1132
1133 data->spec.rate = device->Frequency;
1134 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1135
1136 switch(device->FmtType)
1137 {
1138 case DevFmtUByte:
1139 data->spec.format = PA_SAMPLE_U8;
1140 break;
1141 case DevFmtShort:
1142 data->spec.format = PA_SAMPLE_S16NE;
1143 break;
1144 case DevFmtInt:
1145 data->spec.format = PA_SAMPLE_S32NE;
1146 break;
1147 case DevFmtFloat:
1148 data->spec.format = PA_SAMPLE_FLOAT32NE;
1149 break;
1150 case DevFmtByte:
1151 case DevFmtUShort:
1152 case DevFmtUInt:
1153 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1154 pa_threaded_mainloop_unlock(data->loop);
1155 goto fail;
1156 }
1157
1158 if(pa_sample_spec_valid(&data->spec) == 0)
1159 {
1160 ERR("Invalid sample format\n");
1161 pa_threaded_mainloop_unlock(data->loop);
1162 goto fail;
1163 }
1164
1165 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1166 {
1167 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1168 pa_threaded_mainloop_unlock(data->loop);
1169 goto fail;
1170 }
1171
1172 samples = device->UpdateSize * device->NumUpdates;
1173 samples = maxu(samples, 100 * device->Frequency / 1000);
1174
1175 data->attr.minreq = -1;
1176 data->attr.prebuf = -1;
1177 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1178 data->attr.tlength = -1;
1179 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1180 pa_frame_size(&data->spec);
1181
1182 flags |= PA_STREAM_DONT_MOVE;
1183 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1184 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1185 flags, &data->attr, &data->spec,
1186 &chanmap);
1187 if(!data->stream)
1188 {
1189 pa_threaded_mainloop_unlock(data->loop);
1190 goto fail;
1191 }
1192
1193 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1194
1195 pa_threaded_mainloop_unlock(data->loop);
1196 return ALC_NO_ERROR;
1197
1198 fail:
1199 pulse_close(device);
1200 return ALC_INVALID_VALUE;
1201 } //}}}
1202
1203 static void pulse_close_capture(ALCdevice *device) //{{{
1204 {
1205 pulse_close(device);
1206 } //}}}
1207
1208 static void pulse_start_capture(ALCdevice *device) //{{{
1209 {
1210 pulse_data *data = device->ExtraData;
1211 pa_operation *o;
1212
1213 pa_threaded_mainloop_lock(data->loop);
1214 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1215 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1216 pa_threaded_mainloop_wait(data->loop);
1217 pa_operation_unref(o);
1218 pa_threaded_mainloop_unlock(data->loop);
1219 } //}}}
1220
1221 static void pulse_stop_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, 1, 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 ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1235 {
1236 pulse_data *data = device->ExtraData;
1237 ALCuint todo = samples * pa_frame_size(&data->spec);
1238
1239 pa_threaded_mainloop_lock(data->loop);
1240 /* Capture is done in fragment-sized chunks, so we loop until we get all
1241 * that's available */
1242 data->last_readable -= todo;
1243 while(todo > 0)
1244 {
1245 size_t rem = todo;
1246
1247 if(data->cap_len == 0)
1248 {
1249 pa_stream_state_t state;
1250
1251 state = pa_stream_get_state(data->stream);
1252 if(!PA_STREAM_IS_GOOD(state))
1253 {
1254 aluHandleDisconnect(device);
1255 break;
1256 }
1257 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1258 {
1259 ERR("pa_stream_peek() failed: %s\n",
1260 pa_strerror(pa_context_errno(data->context)));
1261 aluHandleDisconnect(device);
1262 break;
1263 }
1264 data->cap_remain = data->cap_len;
1265 }
1266 if(rem > data->cap_remain)
1267 rem = data->cap_remain;
1268
1269 memcpy(buffer, data->cap_store, rem);
1270
1271 buffer = (ALbyte*)buffer + rem;
1272 todo -= rem;
1273
1274 data->cap_store = (ALbyte*)data->cap_store + rem;
1275 data->cap_remain -= rem;
1276 if(data->cap_remain == 0)
1277 {
1278 pa_stream_drop(data->stream);
1279 data->cap_len = 0;
1280 }
1281 }
1282 if(todo > 0)
1283 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1284 pa_threaded_mainloop_unlock(data->loop);
1285
1286 return ALC_NO_ERROR;
1287 } //}}}
1288
1289 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1290 {
1291 pulse_data *data = device->ExtraData;
1292 size_t readable = data->cap_remain;
1293
1294 pa_threaded_mainloop_lock(data->loop);
1295 if(device->Connected)
1296 {
1297 ssize_t got = pa_stream_readable_size(data->stream);
1298 if(got > 0 && (size_t)got > data->cap_len)
1299 readable += got - data->cap_len;
1300 }
1301 pa_threaded_mainloop_unlock(data->loop);
1302
1303 if(data->last_readable < readable)
1304 data->last_readable = readable;
1305 return data->last_readable / pa_frame_size(&data->spec);
1306 } //}}}
1307
1308
1309 static const BackendFuncs pulse_funcs = { //{{{
1310 pulse_open_playback,
1311 pulse_close_playback,
1312 pulse_reset_playback,
1313 pulse_stop_playback,
1314 pulse_open_capture,
1315 pulse_close_capture,
1316 pulse_start_capture,
1317 pulse_stop_capture,
1318 pulse_capture_samples,
1319 pulse_available_samples
1320 }; //}}}
1321
1322 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1323 {
1324 ALCboolean ret = ALC_FALSE;
1325
1326 if(pulse_load())
1327 {
1328 pa_threaded_mainloop *loop;
1329
1330 pulse_ctx_flags = 0;
1331 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1332 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1333
1334 if((loop=pa_threaded_mainloop_new()) &&
1335 pa_threaded_mainloop_start(loop) >= 0)
1336 {
1337 pa_context *context;
1338
1339 pa_threaded_mainloop_lock(loop);
1340 context = connect_context(loop, AL_TRUE);
1341 if(context)
1342 {
1343 ret = ALC_TRUE;
1344
1345 pa_context_disconnect(context);
1346 pa_context_unref(context);
1347 }
1348 pa_threaded_mainloop_unlock(loop);
1349 pa_threaded_mainloop_stop(loop);
1350 }
1351 if(loop)
1352 pa_threaded_mainloop_free(loop);
1353 }
1354
1355 if(ret != ALC_FALSE)
1356 *func_list = pulse_funcs;
1357 return ret;
1358 } //}}}
1359
1360 void alc_pulse_deinit(void) //{{{
1361 {
1362 ALuint i;
1363
1364 for(i = 0;i < numDevNames;++i)
1365 {
1366 free(allDevNameMap[i].name);
1367 free(allDevNameMap[i].device_name);
1368 }
1369 free(allDevNameMap);
1370 allDevNameMap = NULL;
1371 numDevNames = 0;
1372
1373 for(i = 0;i < numCaptureDevNames;++i)
1374 {
1375 free(allCaptureDevNameMap[i].name);
1376 free(allCaptureDevNameMap[i].device_name);
1377 }
1378 free(allCaptureDevNameMap);
1379 allCaptureDevNameMap = NULL;
1380 numCaptureDevNames = 0;
1381
1382 #ifdef HAVE_DYNLOAD
1383 if(pa_handle)
1384 CloseLib(pa_handle);
1385 pa_handle = NULL;
1386 #endif
1387 } //}}}
1388
1389 void alc_pulse_probe(enum DevProbe type) //{{{
1390 {
1391 ALuint i;
1392
1393 switch(type)
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 //}}}
1429
1430 #else
1431
1432 #warning "Unsupported API version, backend will be unavailable!"
1433
1434 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1435 { return ALC_FALSE; (void)func_list; }
1436
1437 void alc_pulse_deinit(void)
1438 { }
1439
1440 void alc_pulse_probe(enum DevProbe type)
1441 { (void)type; }
1442
1443 #endif
Software OpenAL implementation