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Filter out a couple pulseaudio stream properties by setting them to 0-length data
[openal-soft.git] / Alc / backends / pulseaudio.c
blob61c7f4af36b5c5c96f5538c01e10d07b4885de4b
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_is_corked);
65 MAKE_FUNC(pa_stream_cork);
66 MAKE_FUNC(pa_stream_is_suspended);
67 MAKE_FUNC(pa_stream_get_device_name);
68 MAKE_FUNC(pa_path_get_filename);
69 MAKE_FUNC(pa_get_binary_name);
70 MAKE_FUNC(pa_threaded_mainloop_free);
71 MAKE_FUNC(pa_context_errno);
72 MAKE_FUNC(pa_xmalloc);
73 MAKE_FUNC(pa_stream_unref);
74 MAKE_FUNC(pa_threaded_mainloop_accept);
75 MAKE_FUNC(pa_stream_set_write_callback);
76 MAKE_FUNC(pa_threaded_mainloop_new);
77 MAKE_FUNC(pa_context_connect);
78 MAKE_FUNC(pa_stream_set_buffer_attr);
79 MAKE_FUNC(pa_stream_get_buffer_attr);
80 MAKE_FUNC(pa_stream_get_sample_spec);
81 MAKE_FUNC(pa_stream_get_time);
82 MAKE_FUNC(pa_stream_set_read_callback);
83 MAKE_FUNC(pa_stream_set_state_callback);
84 MAKE_FUNC(pa_stream_set_moved_callback);
85 MAKE_FUNC(pa_stream_set_underflow_callback);
86 MAKE_FUNC(pa_stream_new_with_proplist);
87 MAKE_FUNC(pa_stream_disconnect);
88 MAKE_FUNC(pa_threaded_mainloop_lock);
89 MAKE_FUNC(pa_channel_map_init_auto);
90 MAKE_FUNC(pa_channel_map_parse);
91 MAKE_FUNC(pa_channel_map_snprint);
92 MAKE_FUNC(pa_channel_map_equal);
93 MAKE_FUNC(pa_context_get_server_info);
94 MAKE_FUNC(pa_context_get_sink_info_by_name);
95 MAKE_FUNC(pa_context_get_sink_info_list);
96 MAKE_FUNC(pa_context_get_source_info_by_name);
97 MAKE_FUNC(pa_context_get_source_info_list);
98 MAKE_FUNC(pa_operation_get_state);
99 MAKE_FUNC(pa_operation_unref);
100 MAKE_FUNC(pa_proplist_new);
101 MAKE_FUNC(pa_proplist_free);
102 MAKE_FUNC(pa_proplist_set);
103 #if PA_CHECK_VERSION(0,9,15)
104 MAKE_FUNC(pa_channel_map_superset);
105 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
106 #endif
107 #if PA_CHECK_VERSION(0,9,16)
108 MAKE_FUNC(pa_stream_begin_write);
109 #endif
110 #undef MAKE_FUNC
111
112 #define pa_context_unref ppa_context_unref
113 #define pa_sample_spec_valid ppa_sample_spec_valid
114 #define pa_frame_size ppa_frame_size
115 #define pa_stream_drop ppa_stream_drop
116 #define pa_strerror ppa_strerror
117 #define pa_context_get_state ppa_context_get_state
118 #define pa_stream_get_state ppa_stream_get_state
119 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
120 #define pa_stream_peek ppa_stream_peek
121 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
122 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
123 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
124 #define pa_context_new ppa_context_new
125 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
126 #define pa_context_disconnect ppa_context_disconnect
127 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
128 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
129 #define pa_context_set_state_callback ppa_context_set_state_callback
130 #define pa_stream_write ppa_stream_write
131 #define pa_xfree ppa_xfree
132 #define pa_stream_connect_record ppa_stream_connect_record
133 #define pa_stream_connect_playback ppa_stream_connect_playback
134 #define pa_stream_readable_size ppa_stream_readable_size
135 #define pa_stream_writable_size ppa_stream_writable_size
136 #define pa_stream_is_corked ppa_stream_is_corked
137 #define pa_stream_cork ppa_stream_cork
138 #define pa_stream_is_suspended ppa_stream_is_suspended
139 #define pa_stream_get_device_name ppa_stream_get_device_name
140 #define pa_path_get_filename ppa_path_get_filename
141 #define pa_get_binary_name ppa_get_binary_name
142 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
143 #define pa_context_errno ppa_context_errno
144 #define pa_xmalloc ppa_xmalloc
145 #define pa_stream_unref ppa_stream_unref
146 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
147 #define pa_stream_set_write_callback ppa_stream_set_write_callback
148 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
149 #define pa_context_connect ppa_context_connect
150 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
151 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
152 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
153 #define pa_stream_get_time ppa_stream_get_time
154 #define pa_stream_set_read_callback ppa_stream_set_read_callback
155 #define pa_stream_set_state_callback ppa_stream_set_state_callback
156 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
157 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
158 #define pa_stream_new_with_proplist ppa_stream_new_with_proplist
159 #define pa_stream_disconnect ppa_stream_disconnect
160 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
161 #define pa_channel_map_init_auto ppa_channel_map_init_auto
162 #define pa_channel_map_parse ppa_channel_map_parse
163 #define pa_channel_map_snprint ppa_channel_map_snprint
164 #define pa_channel_map_equal ppa_channel_map_equal
165 #define pa_context_get_server_info ppa_context_get_server_info
166 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
167 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
168 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
169 #define pa_context_get_source_info_list ppa_context_get_source_info_list
170 #define pa_operation_get_state ppa_operation_get_state
171 #define pa_operation_unref ppa_operation_unref
172 #define pa_proplist_new ppa_proplist_new
173 #define pa_proplist_free ppa_proplist_free
174 #define pa_proplist_set ppa_proplist_set
175 #if PA_CHECK_VERSION(0,9,15)
176 #define pa_channel_map_superset ppa_channel_map_superset
177 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
178 #endif
179 #if PA_CHECK_VERSION(0,9,16)
180 #define pa_stream_begin_write ppa_stream_begin_write
181 #endif
182
183 #endif
184
185 #ifndef PATH_MAX
186 #define PATH_MAX 4096
187 #endif
188
189 typedef struct {
190 char *device_name;
191
192 const void *cap_store;
193 size_t cap_len;
194 size_t cap_remain;
195
196 ALCuint last_readable;
197
198 pa_buffer_attr attr;
199 pa_sample_spec spec;
200
201 pa_threaded_mainloop *loop;
202
203 ALvoid *thread;
204 volatile ALboolean killNow;
205
206 pa_stream *stream;
207 pa_context *context;
208 } pulse_data;
209
210 typedef struct {
211 char *name;
212 char *device_name;
213 } DevMap;
214
215
216 static DevMap *allDevNameMap;
217 static ALuint numDevNames;
218 static DevMap *allCaptureDevNameMap;
219 static ALuint numCaptureDevNames;
220 static pa_context_flags_t pulse_ctx_flags;
221 static pa_proplist *prop_filter;
222
223
224 static ALCboolean pulse_load(void)
225 {
226 ALCboolean ret = ALC_TRUE;
227 #ifdef HAVE_DYNLOAD
228 if(!pa_handle)
229 {
230 #ifdef _WIN32
231 #define PALIB "libpulse-0.dll"
232 #elif defined(__APPLE__) && defined(__MACH__)
233 #define PALIB "libpulse.0.dylib"
234 #else
235 #define PALIB "libpulse.so.0"
236 #endif
237 pa_handle = LoadLib(PALIB);
238 if(!pa_handle)
239 return ALC_FALSE;
240
241 #define LOAD_FUNC(x) do { \
242 p##x = GetSymbol(pa_handle, #x); \
243 if(!(p##x)) { \
244 ret = ALC_FALSE; \
245 } \
246 } while(0)
247 LOAD_FUNC(pa_context_unref);
248 LOAD_FUNC(pa_sample_spec_valid);
249 LOAD_FUNC(pa_stream_drop);
250 LOAD_FUNC(pa_frame_size);
251 LOAD_FUNC(pa_strerror);
252 LOAD_FUNC(pa_context_get_state);
253 LOAD_FUNC(pa_stream_get_state);
254 LOAD_FUNC(pa_threaded_mainloop_signal);
255 LOAD_FUNC(pa_stream_peek);
256 LOAD_FUNC(pa_threaded_mainloop_wait);
257 LOAD_FUNC(pa_threaded_mainloop_unlock);
258 LOAD_FUNC(pa_threaded_mainloop_in_thread);
259 LOAD_FUNC(pa_context_new);
260 LOAD_FUNC(pa_threaded_mainloop_stop);
261 LOAD_FUNC(pa_context_disconnect);
262 LOAD_FUNC(pa_threaded_mainloop_start);
263 LOAD_FUNC(pa_threaded_mainloop_get_api);
264 LOAD_FUNC(pa_context_set_state_callback);
265 LOAD_FUNC(pa_stream_write);
266 LOAD_FUNC(pa_xfree);
267 LOAD_FUNC(pa_stream_connect_record);
268 LOAD_FUNC(pa_stream_connect_playback);
269 LOAD_FUNC(pa_stream_readable_size);
270 LOAD_FUNC(pa_stream_writable_size);
271 LOAD_FUNC(pa_stream_is_corked);
272 LOAD_FUNC(pa_stream_cork);
273 LOAD_FUNC(pa_stream_is_suspended);
274 LOAD_FUNC(pa_stream_get_device_name);
275 LOAD_FUNC(pa_path_get_filename);
276 LOAD_FUNC(pa_get_binary_name);
277 LOAD_FUNC(pa_threaded_mainloop_free);
278 LOAD_FUNC(pa_context_errno);
279 LOAD_FUNC(pa_xmalloc);
280 LOAD_FUNC(pa_stream_unref);
281 LOAD_FUNC(pa_threaded_mainloop_accept);
282 LOAD_FUNC(pa_stream_set_write_callback);
283 LOAD_FUNC(pa_threaded_mainloop_new);
284 LOAD_FUNC(pa_context_connect);
285 LOAD_FUNC(pa_stream_set_buffer_attr);
286 LOAD_FUNC(pa_stream_get_buffer_attr);
287 LOAD_FUNC(pa_stream_get_sample_spec);
288 LOAD_FUNC(pa_stream_get_time);
289 LOAD_FUNC(pa_stream_set_read_callback);
290 LOAD_FUNC(pa_stream_set_state_callback);
291 LOAD_FUNC(pa_stream_set_moved_callback);
292 LOAD_FUNC(pa_stream_set_underflow_callback);
293 LOAD_FUNC(pa_stream_new_with_proplist);
294 LOAD_FUNC(pa_stream_disconnect);
295 LOAD_FUNC(pa_threaded_mainloop_lock);
296 LOAD_FUNC(pa_channel_map_init_auto);
297 LOAD_FUNC(pa_channel_map_parse);
298 LOAD_FUNC(pa_channel_map_snprint);
299 LOAD_FUNC(pa_channel_map_equal);
300 LOAD_FUNC(pa_context_get_server_info);
301 LOAD_FUNC(pa_context_get_sink_info_by_name);
302 LOAD_FUNC(pa_context_get_sink_info_list);
303 LOAD_FUNC(pa_context_get_source_info_by_name);
304 LOAD_FUNC(pa_context_get_source_info_list);
305 LOAD_FUNC(pa_operation_get_state);
306 LOAD_FUNC(pa_operation_unref);
307 LOAD_FUNC(pa_proplist_new);
308 LOAD_FUNC(pa_proplist_free);
309 LOAD_FUNC(pa_proplist_set);
310 #undef LOAD_FUNC
311 #define LOAD_OPTIONAL_FUNC(x) do { \
312 p##x = GetSymbol(pa_handle, #x); \
313 } while(0)
314 #if PA_CHECK_VERSION(0,9,15)
315 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
316 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
317 #endif
318 #if PA_CHECK_VERSION(0,9,16)
319 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
320 #endif
321 #undef LOAD_OPTIONAL_FUNC
322
323 if(ret == ALC_FALSE)
324 {
325 CloseLib(pa_handle);
326 pa_handle = NULL;
327 }
328 }
329 #endif /* HAVE_DYNLOAD */
330 return ret;
331 }
332
333 /* PulseAudio Event Callbacks */
334 static void context_state_callback(pa_context *context, void *pdata)
335 {
336 pa_threaded_mainloop *loop = pdata;
337 pa_context_state_t state;
338
339 state = pa_context_get_state(context);
340 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
341 pa_threaded_mainloop_signal(loop, 0);
342 }
343
344 static void stream_state_callback(pa_stream *stream, void *pdata)
345 {
346 pa_threaded_mainloop *loop = pdata;
347 pa_stream_state_t state;
348
349 state = pa_stream_get_state(stream);
350 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
351 pa_threaded_mainloop_signal(loop, 0);
352 }
353
354 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata)
355 {
356 ALCdevice *device = pdata;
357 pulse_data *data = device->ExtraData;
358
359 data->attr = *pa_stream_get_buffer_attr(stream);
360 TRACE("minreq=%d, tlength=%d, prebuf=%d\n", data->attr.minreq, data->attr.tlength, data->attr.prebuf);
361 }
362
363 static void context_state_callback2(pa_context *context, void *pdata)
364 {
365 ALCdevice *Device = pdata;
366 pulse_data *data = Device->ExtraData;
367
368 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
369 {
370 ERR("Received context failure!\n");
371 aluHandleDisconnect(Device);
372 }
373 pa_threaded_mainloop_signal(data->loop, 0);
374 }
375
376 static void stream_state_callback2(pa_stream *stream, void *pdata)
377 {
378 ALCdevice *Device = pdata;
379 pulse_data *data = Device->ExtraData;
380
381 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
382 {
383 ERR("Received stream failure!\n");
384 aluHandleDisconnect(Device);
385 }
386 pa_threaded_mainloop_signal(data->loop, 0);
387 }
388
389 static void stream_success_callback(pa_stream *stream, int success, void *pdata)
390 {
391 ALCdevice *Device = pdata;
392 pulse_data *data = Device->ExtraData;
393 (void)stream;
394 (void)success;
395
396 pa_threaded_mainloop_signal(data->loop, 0);
397 }
398
399 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
400 {
401 ALCdevice *device = pdata;
402 pulse_data *data = device->ExtraData;
403 char chanmap_str[256] = "";
404 const struct {
405 const char *str;
406 enum DevFmtChannels chans;
407 } chanmaps[] = {
408 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
409 DevFmtX71 },
410 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
411 DevFmtX61 },
412 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
413 DevFmtX51 },
414 { "front-left,front-right,front-center,lfe,side-left,side-right",
415 DevFmtX51Side },
416 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
417 { "front-left,front-right", DevFmtStereo },
418 { "mono", DevFmtMono },
419 { NULL, 0 }
420 };
421 int i;
422 (void)context;
423
424 if(eol)
425 {
426 pa_threaded_mainloop_signal(data->loop, 0);
427 return;
428 }
429
430 for(i = 0;chanmaps[i].str;i++)
431 {
432 pa_channel_map map;
433 if(!pa_channel_map_parse(&map, chanmaps[i].str))
434 continue;
435
436 if(pa_channel_map_equal(&info->channel_map, &map)
437 #if PA_CHECK_VERSION(0,9,15)
438 || (pa_channel_map_superset &&
439 pa_channel_map_superset(&info->channel_map, &map))
440 #endif
441 )
442 {
443 device->FmtChans = chanmaps[i].chans;
444 return;
445 }
446 }
447
448 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
449 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
450 }
451
452 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
453 {
454 pa_threaded_mainloop *loop = pdata;
455 void *temp;
456 ALuint i;
457
458 (void)context;
459
460 if(eol)
461 {
462 pa_threaded_mainloop_signal(loop, 0);
463 return;
464 }
465
466 for(i = 0;i < numDevNames;i++)
467 {
468 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
469 return;
470 }
471
472 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
473
474 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
475 if(temp)
476 {
477 allDevNameMap = temp;
478 allDevNameMap[numDevNames].name = strdup(info->description);
479 allDevNameMap[numDevNames].device_name = strdup(info->name);
480 numDevNames++;
481 }
482 }
483
484 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
485 {
486 pa_threaded_mainloop *loop = pdata;
487 void *temp;
488 ALuint i;
489
490 (void)context;
491
492 if(eol)
493 {
494 pa_threaded_mainloop_signal(loop, 0);
495 return;
496 }
497
498 for(i = 0;i < numCaptureDevNames;i++)
499 {
500 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
501 return;
502 }
503
504 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
505
506 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
507 if(temp)
508 {
509 allCaptureDevNameMap = temp;
510 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
511 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
512 numCaptureDevNames++;
513 }
514 }
515
516 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
517 {
518 ALCdevice *device = pdata;
519 pulse_data *data = device->ExtraData;
520 (void)context;
521
522 if(eol)
523 {
524 pa_threaded_mainloop_signal(data->loop, 0);
525 return;
526 }
527
528 free(device->szDeviceName);
529 device->szDeviceName = strdup(info->description);
530 }
531
532 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
533 {
534 ALCdevice *device = pdata;
535 pulse_data *data = device->ExtraData;
536 (void)context;
537
538 if(eol)
539 {
540 pa_threaded_mainloop_signal(data->loop, 0);
541 return;
542 }
543
544 free(device->szDeviceName);
545 device->szDeviceName = strdup(info->description);
546 }
547
548
549 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
550 {
551 const char *name = "OpenAL Soft";
552 char path_name[PATH_MAX];
553 pa_context_state_t state;
554 pa_context *context;
555 int err;
556
557 if(pa_get_binary_name(path_name, sizeof(path_name)))
558 name = pa_path_get_filename(path_name);
559
560 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
561 if(!context)
562 {
563 ERR("pa_context_new() failed\n");
564 return NULL;
565 }
566
567 pa_context_set_state_callback(context, context_state_callback, loop);
568
569 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
570 {
571 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
572 {
573 if(!PA_CONTEXT_IS_GOOD(state))
574 {
575 err = pa_context_errno(context);
576 if(err > 0) err = -err;
577 break;
578 }
579
580 pa_threaded_mainloop_wait(loop);
581 }
582 }
583 pa_context_set_state_callback(context, NULL, NULL);
584
585 if(err < 0)
586 {
587 if(!silent)
588 ERR("Context did not connect: %s\n", pa_strerror(err));
589 pa_context_unref(context);
590 return NULL;
591 }
592
593 return context;
594 }
595
596 static pa_stream *connect_playback_stream(const char *device_name,
597 pa_threaded_mainloop *loop, pa_context *context,
598 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
599 pa_channel_map *chanmap)
600 {
601 pa_stream_state_t state;
602 pa_stream *stream;
603
604 stream = pa_stream_new_with_proplist(context, "Playback Stream", spec, chanmap, prop_filter);
605 if(!stream)
606 {
607 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
608 return NULL;
609 }
610
611 pa_stream_set_state_callback(stream, stream_state_callback, loop);
612
613 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
614 {
615 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
616 pa_stream_unref(stream);
617 return NULL;
618 }
619
620 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
621 {
622 if(!PA_STREAM_IS_GOOD(state))
623 {
624 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
625 pa_stream_unref(stream);
626 return NULL;
627 }
628
629 pa_threaded_mainloop_wait(loop);
630 }
631 pa_stream_set_state_callback(stream, NULL, NULL);
632
633 return stream;
634 }
635
636 static pa_stream *connect_record_stream(const char *device_name,
637 pa_threaded_mainloop *loop, pa_context *context,
638 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
639 pa_channel_map *chanmap)
640 {
641 pa_stream_state_t state;
642 pa_stream *stream;
643
644 stream = pa_stream_new_with_proplist(context, "Capture Stream", spec, chanmap, prop_filter);
645 if(!stream)
646 {
647 ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
648 return NULL;
649 }
650
651 pa_stream_set_state_callback(stream, stream_state_callback, loop);
652
653 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
654 {
655 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
656 pa_stream_unref(stream);
657 return NULL;
658 }
659
660 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
661 {
662 if(!PA_STREAM_IS_GOOD(state))
663 {
664 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
665 pa_stream_unref(stream);
666 return NULL;
667 }
668
669 pa_threaded_mainloop_wait(loop);
670 }
671 pa_stream_set_state_callback(stream, NULL, NULL);
672
673 return stream;
674 }
675
676
677 #define WAIT_FOR_OPERATION(x, l) do { \
678 pa_threaded_mainloop *_l = (l); \
679 pa_operation *_o = (x); \
680 if(!_o) break; \
681 while(pa_operation_get_state(_o) == PA_OPERATION_RUNNING) \
682 pa_threaded_mainloop_wait(_l); \
683 pa_operation_unref(_o); \
684 } while(0)
685
686
687 static void probe_devices(ALboolean capture)
688 {
689 pa_threaded_mainloop *loop;
690
691 if(capture == AL_FALSE)
692 allDevNameMap = malloc(sizeof(DevMap) * 1);
693 else
694 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
695
696 if((loop=pa_threaded_mainloop_new()) &&
697 pa_threaded_mainloop_start(loop) >= 0)
698 {
699 pa_context *context;
700
701 pa_threaded_mainloop_lock(loop);
702 context = connect_context(loop, AL_FALSE);
703 if(context)
704 {
705 pa_operation *o;
706
707 if(capture == AL_FALSE)
708 {
709 pa_stream_flags_t flags;
710 pa_sample_spec spec;
711 pa_stream *stream;
712
713 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
714 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
715
716 spec.format = PA_SAMPLE_S16NE;
717 spec.rate = 44100;
718 spec.channels = 2;
719
720 stream = connect_playback_stream(NULL, loop, context, flags,
721 NULL, &spec, NULL);
722 if(stream)
723 {
724 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
725 WAIT_FOR_OPERATION(o, loop);
726
727 pa_stream_disconnect(stream);
728 pa_stream_unref(stream);
729 stream = NULL;
730 }
731
732 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
733 }
734 else
735 {
736 pa_stream_flags_t flags;
737 pa_sample_spec spec;
738 pa_stream *stream;
739
740 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
741 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
742
743 spec.format = PA_SAMPLE_S16NE;
744 spec.rate = 44100;
745 spec.channels = 1;
746
747 stream = connect_record_stream(NULL, loop, context, flags,
748 NULL, &spec, NULL);
749 if(stream)
750 {
751 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
752 WAIT_FOR_OPERATION(o, loop);
753
754 pa_stream_disconnect(stream);
755 pa_stream_unref(stream);
756 stream = NULL;
757 }
758
759 o = pa_context_get_source_info_list(context, source_device_callback, loop);
760 }
761 WAIT_FOR_OPERATION(o, loop);
762
763 pa_context_disconnect(context);
764 pa_context_unref(context);
765 }
766 pa_threaded_mainloop_unlock(loop);
767 pa_threaded_mainloop_stop(loop);
768 }
769 if(loop)
770 pa_threaded_mainloop_free(loop);
771 }
772
773
774 static ALuint PulseProc(ALvoid *param)
775 {
776 ALCdevice *Device = param;
777 pulse_data *data = Device->ExtraData;
778 ALuint buffer_size;
779 ALint update_size;
780 size_t frame_size;
781 ssize_t len;
782
783 SetRTPriority();
784
785 pa_threaded_mainloop_lock(data->loop);
786 frame_size = pa_frame_size(&data->spec);
787 update_size = Device->UpdateSize * frame_size;
788
789 /* Sanitize buffer metrics, in case we actually have less than what we
790 * asked for. */
791 buffer_size = minu(update_size*Device->NumUpdates, data->attr.tlength);
792 update_size = minu(update_size, buffer_size/2);
793 do {
794 len = pa_stream_writable_size(data->stream) - data->attr.tlength +
795 buffer_size;
796 if(len < update_size)
797 {
798 if(pa_stream_is_corked(data->stream) == 1)
799 {
800 pa_operation *o;
801 o = pa_stream_cork(data->stream, 0, NULL, NULL);
802 if(o) pa_operation_unref(o);
803 }
804 pa_threaded_mainloop_unlock(data->loop);
805 Sleep(1);
806 pa_threaded_mainloop_lock(data->loop);
807 continue;
808 }
809 len -= len%update_size;
810
811 while(len > 0)
812 {
813 size_t newlen = len;
814 void *buf;
815 pa_free_cb_t free_func = NULL;
816
817 #if PA_CHECK_VERSION(0,9,16)
818 if(!pa_stream_begin_write ||
819 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
820 #endif
821 {
822 buf = pa_xmalloc(newlen);
823 free_func = pa_xfree;
824 }
825 pa_threaded_mainloop_unlock(data->loop);
826
827 aluMixData(Device, buf, newlen/frame_size);
828
829 pa_threaded_mainloop_lock(data->loop);
830 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
831 len -= newlen;
832 }
833 } while(!data->killNow && Device->Connected);
834 pa_threaded_mainloop_unlock(data->loop);
835
836 return 0;
837 }
838
839
840 static ALCboolean pulse_open(ALCdevice *device)
841 {
842 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
843 memset(data, 0, sizeof(*data));
844
845 if(!(data->loop = pa_threaded_mainloop_new()))
846 {
847 ERR("pa_threaded_mainloop_new() failed!\n");
848 goto out;
849 }
850 if(pa_threaded_mainloop_start(data->loop) < 0)
851 {
852 ERR("pa_threaded_mainloop_start() failed\n");
853 goto out;
854 }
855
856 pa_threaded_mainloop_lock(data->loop);
857 device->ExtraData = data;
858
859 data->context = connect_context(data->loop, AL_FALSE);
860 if(!data->context)
861 {
862 pa_threaded_mainloop_unlock(data->loop);
863 goto out;
864 }
865 pa_context_set_state_callback(data->context, context_state_callback2, device);
866
867 pa_threaded_mainloop_unlock(data->loop);
868 return ALC_TRUE;
869
870 out:
871 if(data->loop)
872 {
873 pa_threaded_mainloop_stop(data->loop);
874 pa_threaded_mainloop_free(data->loop);
875 }
876
877 device->ExtraData = NULL;
878 pa_xfree(data);
879 return ALC_FALSE;
880 }
881
882 static void pulse_close(ALCdevice *device)
883 {
884 pulse_data *data = device->ExtraData;
885
886 pa_threaded_mainloop_lock(data->loop);
887
888 if(data->stream)
889 {
890 #if PA_CHECK_VERSION(0,9,15)
891 if(pa_stream_set_buffer_attr_callback)
892 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
893 #endif
894 pa_stream_disconnect(data->stream);
895 pa_stream_unref(data->stream);
896 }
897
898 pa_context_disconnect(data->context);
899 pa_context_unref(data->context);
900
901 pa_threaded_mainloop_unlock(data->loop);
902
903 pa_threaded_mainloop_stop(data->loop);
904 pa_threaded_mainloop_free(data->loop);
905
906 free(data->device_name);
907
908 device->ExtraData = NULL;
909 pa_xfree(data);
910 }
911
912 /* OpenAL */
913 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name)
914 {
915 const char *pulse_name = NULL;
916 pa_stream_flags_t flags;
917 pa_sample_spec spec;
918 pulse_data *data;
919 pa_operation *o;
920
921 if(device_name)
922 {
923 ALuint i;
924
925 if(!allDevNameMap)
926 probe_devices(AL_FALSE);
927
928 for(i = 0;i < numDevNames;i++)
929 {
930 if(strcmp(device_name, allDevNameMap[i].name) == 0)
931 {
932 pulse_name = allDevNameMap[i].device_name;
933 break;
934 }
935 }
936 if(i == numDevNames)
937 return ALC_INVALID_VALUE;
938 }
939
940 if(pulse_open(device) == ALC_FALSE)
941 return ALC_INVALID_VALUE;
942
943 data = device->ExtraData;
944 pa_threaded_mainloop_lock(data->loop);
945
946 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
947 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
948
949 spec.format = PA_SAMPLE_S16NE;
950 spec.rate = 44100;
951 spec.channels = 2;
952
953 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
954 flags, NULL, &spec, NULL);
955 if(!data->stream)
956 {
957 pa_threaded_mainloop_unlock(data->loop);
958 pulse_close(device);
959 return ALC_INVALID_VALUE;
960 }
961
962 data->device_name = strdup(pa_stream_get_device_name(data->stream));
963 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
964 sink_name_callback, device);
965 WAIT_FOR_OPERATION(o, data->loop);
966
967 pa_threaded_mainloop_unlock(data->loop);
968
969 return ALC_NO_ERROR;
970 }
971
972 static void pulse_close_playback(ALCdevice *device)
973 {
974 pulse_close(device);
975 }
976
977 static ALCboolean pulse_reset_playback(ALCdevice *device)
978 {
979 pulse_data *data = device->ExtraData;
980 pa_stream_flags_t flags = 0;
981 pa_channel_map chanmap;
982
983 pa_threaded_mainloop_lock(data->loop);
984
985 if(data->stream)
986 {
987 #if PA_CHECK_VERSION(0,9,15)
988 if(pa_stream_set_buffer_attr_callback)
989 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
990 #endif
991 pa_stream_disconnect(data->stream);
992 pa_stream_unref(data->stream);
993 data->stream = NULL;
994 }
995
996 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
997 {
998 pa_operation *o;
999 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
1000 WAIT_FOR_OPERATION(o, data->loop);
1001 }
1002 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
1003 flags |= PA_STREAM_FIX_RATE;
1004
1005 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
1006 flags |= PA_STREAM_ADJUST_LATENCY;
1007 flags |= PA_STREAM_START_CORKED;
1008 flags |= PA_STREAM_DONT_MOVE;
1009
1010 switch(device->FmtType)
1011 {
1012 case DevFmtByte:
1013 device->FmtType = DevFmtUByte;
1014 /* fall-through */
1015 case DevFmtUByte:
1016 data->spec.format = PA_SAMPLE_U8;
1017 break;
1018 case DevFmtUShort:
1019 device->FmtType = DevFmtShort;
1020 /* fall-through */
1021 case DevFmtShort:
1022 data->spec.format = PA_SAMPLE_S16NE;
1023 break;
1024 case DevFmtUInt:
1025 device->FmtType = DevFmtInt;
1026 /* fall-through */
1027 case DevFmtInt:
1028 data->spec.format = PA_SAMPLE_S32NE;
1029 break;
1030 case DevFmtFloat:
1031 data->spec.format = PA_SAMPLE_FLOAT32NE;
1032 break;
1033 }
1034 data->spec.rate = device->Frequency;
1035 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1036
1037 if(pa_sample_spec_valid(&data->spec) == 0)
1038 {
1039 ERR("Invalid sample format\n");
1040 pa_threaded_mainloop_unlock(data->loop);
1041 return ALC_FALSE;
1042 }
1043
1044 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1045 {
1046 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1047 pa_threaded_mainloop_unlock(data->loop);
1048 return ALC_FALSE;
1049 }
1050 SetDefaultWFXChannelOrder(device);
1051
1052 data->attr.fragsize = -1;
1053 data->attr.prebuf = 0;
1054 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1055 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1056 data->attr.maxlength = -1;
1057
1058 data->stream = connect_playback_stream(data->device_name, data->loop,
1059 data->context, flags, &data->attr,
1060 &data->spec, &chanmap);
1061 if(!data->stream)
1062 {
1063 pa_threaded_mainloop_unlock(data->loop);
1064 return ALC_FALSE;
1065 }
1066 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1067
1068 data->spec = *(pa_stream_get_sample_spec(data->stream));
1069 if(device->Frequency != data->spec.rate)
1070 {
1071 pa_operation *o;
1072
1073 /* Server updated our playback rate, so modify the buffer attribs
1074 * accordingly. */
1075 data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
1076 device->Frequency * pa_frame_size(&data->spec);
1077 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1078 data->attr.prebuf = 0;
1079
1080 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1081 stream_success_callback, device);
1082 WAIT_FOR_OPERATION(o, data->loop);
1083
1084 device->Frequency = data->spec.rate;
1085 }
1086
1087 #if PA_CHECK_VERSION(0,9,15)
1088 if(pa_stream_set_buffer_attr_callback)
1089 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1090 #endif
1091 stream_buffer_attr_callback(data->stream, device);
1092
1093 device->NumUpdates = device->UpdateSize*device->NumUpdates /
1094 (data->attr.minreq/pa_frame_size(&data->spec));
1095 device->NumUpdates = maxu(device->NumUpdates, 2);
1096 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1097
1098 pa_threaded_mainloop_unlock(data->loop);
1099 return ALC_TRUE;
1100 }
1101
1102 static ALCboolean pulse_start_playback(ALCdevice *device)
1103 {
1104 pulse_data *data = device->ExtraData;
1105
1106 data->thread = StartThread(PulseProc, device);
1107 if(!data->thread)
1108 return ALC_FALSE;
1109
1110 return ALC_TRUE;
1111 }
1112
1113 static void pulse_stop_playback(ALCdevice *device)
1114 {
1115 pulse_data *data = device->ExtraData;
1116 pa_operation *o;
1117
1118 if(!data->stream)
1119 return;
1120
1121 data->killNow = AL_TRUE;
1122 if(data->thread)
1123 {
1124 StopThread(data->thread);
1125 data->thread = NULL;
1126 }
1127 data->killNow = AL_FALSE;
1128
1129 pa_threaded_mainloop_lock(data->loop);
1130
1131 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1132 WAIT_FOR_OPERATION(o, data->loop);
1133
1134 pa_threaded_mainloop_unlock(data->loop);
1135 }
1136
1137
1138 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name)
1139 {
1140 const char *pulse_name = NULL;
1141 pa_stream_flags_t flags = 0;
1142 pa_channel_map chanmap;
1143 pulse_data *data;
1144 pa_operation *o;
1145 ALuint samples;
1146
1147 if(device_name)
1148 {
1149 ALuint i;
1150
1151 if(!allCaptureDevNameMap)
1152 probe_devices(AL_TRUE);
1153
1154 for(i = 0;i < numCaptureDevNames;i++)
1155 {
1156 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1157 {
1158 pulse_name = allCaptureDevNameMap[i].device_name;
1159 break;
1160 }
1161 }
1162 if(i == numCaptureDevNames)
1163 return ALC_INVALID_VALUE;
1164 }
1165
1166 if(pulse_open(device) == ALC_FALSE)
1167 return ALC_INVALID_VALUE;
1168
1169 data = device->ExtraData;
1170 pa_threaded_mainloop_lock(data->loop);
1171
1172 data->spec.rate = device->Frequency;
1173 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1174
1175 switch(device->FmtType)
1176 {
1177 case DevFmtUByte:
1178 data->spec.format = PA_SAMPLE_U8;
1179 break;
1180 case DevFmtShort:
1181 data->spec.format = PA_SAMPLE_S16NE;
1182 break;
1183 case DevFmtInt:
1184 data->spec.format = PA_SAMPLE_S32NE;
1185 break;
1186 case DevFmtFloat:
1187 data->spec.format = PA_SAMPLE_FLOAT32NE;
1188 break;
1189 case DevFmtByte:
1190 case DevFmtUShort:
1191 case DevFmtUInt:
1192 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1193 pa_threaded_mainloop_unlock(data->loop);
1194 goto fail;
1195 }
1196
1197 if(pa_sample_spec_valid(&data->spec) == 0)
1198 {
1199 ERR("Invalid sample format\n");
1200 pa_threaded_mainloop_unlock(data->loop);
1201 goto fail;
1202 }
1203
1204 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1205 {
1206 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1207 pa_threaded_mainloop_unlock(data->loop);
1208 goto fail;
1209 }
1210
1211 samples = device->UpdateSize * device->NumUpdates;
1212 samples = maxu(samples, 100 * device->Frequency / 1000);
1213
1214 data->attr.minreq = -1;
1215 data->attr.prebuf = -1;
1216 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1217 data->attr.tlength = -1;
1218 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1219 pa_frame_size(&data->spec);
1220
1221 flags |= PA_STREAM_DONT_MOVE;
1222 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1223 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1224 flags, &data->attr, &data->spec,
1225 &chanmap);
1226 if(!data->stream)
1227 {
1228 pa_threaded_mainloop_unlock(data->loop);
1229 goto fail;
1230 }
1231 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1232
1233 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1234 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1235 source_name_callback, device);
1236 WAIT_FOR_OPERATION(o, data->loop);
1237
1238 pa_threaded_mainloop_unlock(data->loop);
1239 return ALC_NO_ERROR;
1240
1241 fail:
1242 pulse_close(device);
1243 return ALC_INVALID_VALUE;
1244 }
1245
1246 static void pulse_close_capture(ALCdevice *device)
1247 {
1248 pulse_close(device);
1249 }
1250
1251 static void pulse_start_capture(ALCdevice *device)
1252 {
1253 pulse_data *data = device->ExtraData;
1254 pa_operation *o;
1255
1256 pa_threaded_mainloop_lock(data->loop);
1257 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1258 WAIT_FOR_OPERATION(o, data->loop);
1259 pa_threaded_mainloop_unlock(data->loop);
1260 }
1261
1262 static void pulse_stop_capture(ALCdevice *device)
1263 {
1264 pulse_data *data = device->ExtraData;
1265 pa_operation *o;
1266
1267 pa_threaded_mainloop_lock(data->loop);
1268 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1269 WAIT_FOR_OPERATION(o, data->loop);
1270 pa_threaded_mainloop_unlock(data->loop);
1271 }
1272
1273 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
1274 {
1275 pulse_data *data = device->ExtraData;
1276 ALCuint todo = samples * pa_frame_size(&data->spec);
1277
1278 pa_threaded_mainloop_lock(data->loop);
1279 /* Capture is done in fragment-sized chunks, so we loop until we get all
1280 * that's available */
1281 data->last_readable -= todo;
1282 while(todo > 0)
1283 {
1284 size_t rem = todo;
1285
1286 if(data->cap_len == 0)
1287 {
1288 pa_stream_state_t state;
1289
1290 state = pa_stream_get_state(data->stream);
1291 if(!PA_STREAM_IS_GOOD(state))
1292 {
1293 aluHandleDisconnect(device);
1294 break;
1295 }
1296 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1297 {
1298 ERR("pa_stream_peek() failed: %s\n",
1299 pa_strerror(pa_context_errno(data->context)));
1300 aluHandleDisconnect(device);
1301 break;
1302 }
1303 data->cap_remain = data->cap_len;
1304 }
1305 if(rem > data->cap_remain)
1306 rem = data->cap_remain;
1307
1308 memcpy(buffer, data->cap_store, rem);
1309
1310 buffer = (ALbyte*)buffer + rem;
1311 todo -= rem;
1312
1313 data->cap_store = (ALbyte*)data->cap_store + rem;
1314 data->cap_remain -= rem;
1315 if(data->cap_remain == 0)
1316 {
1317 pa_stream_drop(data->stream);
1318 data->cap_len = 0;
1319 }
1320 }
1321 if(todo > 0)
1322 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1323 pa_threaded_mainloop_unlock(data->loop);
1324
1325 return ALC_NO_ERROR;
1326 }
1327
1328 static ALCuint pulse_available_samples(ALCdevice *device)
1329 {
1330 pulse_data *data = device->ExtraData;
1331 size_t readable = data->cap_remain;
1332
1333 pa_threaded_mainloop_lock(data->loop);
1334 if(device->Connected)
1335 {
1336 ssize_t got = pa_stream_readable_size(data->stream);
1337 if(got < 0)
1338 {
1339 ERR("pa_stream_readable_size() failed: %s\n", pa_strerror(got));
1340 aluHandleDisconnect(device);
1341 }
1342 else if((size_t)got > data->cap_len)
1343 readable += got - data->cap_len;
1344 }
1345 pa_threaded_mainloop_unlock(data->loop);
1346
1347 if(data->last_readable < readable)
1348 data->last_readable = readable;
1349 return data->last_readable / pa_frame_size(&data->spec);
1350 }
1351
1352
1353 static const BackendFuncs pulse_funcs = {
1354 pulse_open_playback,
1355 pulse_close_playback,
1356 pulse_reset_playback,
1357 pulse_start_playback,
1358 pulse_stop_playback,
1359 pulse_open_capture,
1360 pulse_close_capture,
1361 pulse_start_capture,
1362 pulse_stop_capture,
1363 pulse_capture_samples,
1364 pulse_available_samples
1365 };
1366
1367 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1368 {
1369 ALCboolean ret = ALC_FALSE;
1370
1371 if(pulse_load())
1372 {
1373 pa_threaded_mainloop *loop;
1374
1375 pulse_ctx_flags = 0;
1376 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1377 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1378
1379 if((loop=pa_threaded_mainloop_new()) &&
1380 pa_threaded_mainloop_start(loop) >= 0)
1381 {
1382 pa_context *context;
1383
1384 pa_threaded_mainloop_lock(loop);
1385 context = connect_context(loop, AL_TRUE);
1386 if(context)
1387 {
1388 *func_list = pulse_funcs;
1389 ret = ALC_TRUE;
1390
1391 prop_filter = pa_proplist_new();
1392 pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
1393 pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);
1394
1395 pa_context_disconnect(context);
1396 pa_context_unref(context);
1397 }
1398 pa_threaded_mainloop_unlock(loop);
1399 pa_threaded_mainloop_stop(loop);
1400 }
1401 if(loop)
1402 pa_threaded_mainloop_free(loop);
1403 }
1404
1405 return ret;
1406 }
1407
1408 void alc_pulse_deinit(void)
1409 {
1410 ALuint i;
1411
1412 for(i = 0;i < numDevNames;++i)
1413 {
1414 free(allDevNameMap[i].name);
1415 free(allDevNameMap[i].device_name);
1416 }
1417 free(allDevNameMap);
1418 allDevNameMap = NULL;
1419 numDevNames = 0;
1420
1421 for(i = 0;i < numCaptureDevNames;++i)
1422 {
1423 free(allCaptureDevNameMap[i].name);
1424 free(allCaptureDevNameMap[i].device_name);
1425 }
1426 free(allCaptureDevNameMap);
1427 allCaptureDevNameMap = NULL;
1428 numCaptureDevNames = 0;
1429
1430 if(prop_filter)
1431 pa_proplist_free(prop_filter);
1432 prop_filter = NULL;
1433
1434 /* PulseAudio doesn't like being CloseLib'd sometimes */
1435 }
1436
1437 void alc_pulse_probe(enum DevProbe type)
1438 {
1439 ALuint i;
1440
1441 switch(type)
1442 {
1443 case ALL_DEVICE_PROBE:
1444 for(i = 0;i < numDevNames;++i)
1445 {
1446 free(allDevNameMap[i].name);
1447 free(allDevNameMap[i].device_name);
1448 }
1449 free(allDevNameMap);
1450 allDevNameMap = NULL;
1451 numDevNames = 0;
1452
1453 probe_devices(AL_FALSE);
1454
1455 for(i = 0;i < numDevNames;i++)
1456 AppendAllDeviceList(allDevNameMap[i].name);
1457 break;
1458
1459 case CAPTURE_DEVICE_PROBE:
1460 for(i = 0;i < numCaptureDevNames;++i)
1461 {
1462 free(allCaptureDevNameMap[i].name);
1463 free(allCaptureDevNameMap[i].device_name);
1464 }
1465 free(allCaptureDevNameMap);
1466 allCaptureDevNameMap = NULL;
1467 numCaptureDevNames = 0;
1468
1469 probe_devices(AL_TRUE);
1470
1471 for(i = 0;i < numCaptureDevNames;i++)
1472 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1473 break;
1474 }
1475 }
1476
1477 #else
1478
1479 #warning "Unsupported API version, backend will be unavailable!"
1480
1481 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1482 { return ALC_FALSE; (void)func_list; }
1483
1484 void alc_pulse_deinit(void)
1485 { }
1486
1487 void alc_pulse_probe(enum DevProbe type)
1488 { (void)type; }
1489
1490 #endif
Software OpenAL implementation