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Only support PA_API_VERSION 12
[openal-soft.git] / Alc / backends / pulseaudio.c
blob1acdff711cdbe8f79a1ec7f0f165a5ff9d031e66
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 static void *pa_handle;
38 #ifdef HAVE_DYNLOAD
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 if(!pa_handle)
277 {
278 #ifdef HAVE_DYNLOAD
279
280 #ifdef _WIN32
281 #define PALIB "libpulse-0.dll"
282 #elif defined(__APPLE__) && defined(__MACH__)
283 #define PALIB "libpulse.0.dylib"
284 #else
285 #define PALIB "libpulse.so.0"
286 #endif
287 pa_handle = LoadLib(PALIB);
288 if(!pa_handle)
289 return ALC_FALSE;
290
291 #define LOAD_FUNC(x) do { \
292 p##x = GetSymbol(pa_handle, #x); \
293 if(!(p##x)) { \
294 ret = ALC_FALSE; \
295 } \
296 } while(0)
297 LOAD_FUNC(pa_context_unref);
298 LOAD_FUNC(pa_sample_spec_valid);
299 LOAD_FUNC(pa_stream_drop);
300 LOAD_FUNC(pa_frame_size);
301 LOAD_FUNC(pa_strerror);
302 LOAD_FUNC(pa_context_get_state);
303 LOAD_FUNC(pa_stream_get_state);
304 LOAD_FUNC(pa_threaded_mainloop_signal);
305 LOAD_FUNC(pa_stream_peek);
306 LOAD_FUNC(pa_threaded_mainloop_wait);
307 LOAD_FUNC(pa_threaded_mainloop_unlock);
308 LOAD_FUNC(pa_threaded_mainloop_in_thread);
309 LOAD_FUNC(pa_context_new);
310 LOAD_FUNC(pa_threaded_mainloop_stop);
311 LOAD_FUNC(pa_context_disconnect);
312 LOAD_FUNC(pa_threaded_mainloop_start);
313 LOAD_FUNC(pa_threaded_mainloop_get_api);
314 LOAD_FUNC(pa_context_set_state_callback);
315 LOAD_FUNC(pa_stream_write);
316 LOAD_FUNC(pa_xfree);
317 LOAD_FUNC(pa_stream_connect_record);
318 LOAD_FUNC(pa_stream_connect_playback);
319 LOAD_FUNC(pa_stream_readable_size);
320 LOAD_FUNC(pa_stream_writable_size);
321 LOAD_FUNC(pa_stream_cork);
322 LOAD_FUNC(pa_stream_is_suspended);
323 LOAD_FUNC(pa_stream_get_device_name);
324 LOAD_FUNC(pa_path_get_filename);
325 LOAD_FUNC(pa_get_binary_name);
326 LOAD_FUNC(pa_threaded_mainloop_free);
327 LOAD_FUNC(pa_context_errno);
328 LOAD_FUNC(pa_xmalloc);
329 LOAD_FUNC(pa_stream_unref);
330 LOAD_FUNC(pa_threaded_mainloop_accept);
331 LOAD_FUNC(pa_stream_set_write_callback);
332 LOAD_FUNC(pa_threaded_mainloop_new);
333 LOAD_FUNC(pa_context_connect);
334 LOAD_FUNC(pa_stream_set_buffer_attr);
335 LOAD_FUNC(pa_stream_get_buffer_attr);
336 LOAD_FUNC(pa_stream_get_sample_spec);
337 LOAD_FUNC(pa_stream_get_time);
338 LOAD_FUNC(pa_stream_set_read_callback);
339 LOAD_FUNC(pa_stream_set_state_callback);
340 LOAD_FUNC(pa_stream_set_moved_callback);
341 LOAD_FUNC(pa_stream_set_underflow_callback);
342 LOAD_FUNC(pa_stream_new);
343 LOAD_FUNC(pa_stream_disconnect);
344 LOAD_FUNC(pa_threaded_mainloop_lock);
345 LOAD_FUNC(pa_channel_map_init_auto);
346 LOAD_FUNC(pa_channel_map_parse);
347 LOAD_FUNC(pa_channel_map_snprint);
348 LOAD_FUNC(pa_channel_map_equal);
349 LOAD_FUNC(pa_context_get_server_info);
350 LOAD_FUNC(pa_context_get_sink_info_by_name);
351 LOAD_FUNC(pa_context_get_sink_info_list);
352 LOAD_FUNC(pa_context_get_source_info_by_name);
353 LOAD_FUNC(pa_context_get_source_info_list);
354 LOAD_FUNC(pa_operation_get_state);
355 LOAD_FUNC(pa_operation_unref);
356 #undef LOAD_FUNC
357 #define LOAD_OPTIONAL_FUNC(x) do { \
358 p##x = GetSymbol(pa_handle, #x); \
359 } while(0)
360 #if PA_CHECK_VERSION(0,9,15)
361 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
362 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
363 #endif
364 #if PA_CHECK_VERSION(0,9,16)
365 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
366 #endif
367 #undef LOAD_OPTIONAL_FUNC
368
369 #else /* HAVE_DYNLOAD */
370 pa_handle = (void*)0xDEADBEEF;
371 #endif
372
373 if(ret == ALC_FALSE)
374 {
375 #ifdef HAVE_DYNLOAD
376 CloseLib(pa_handle);
377 #endif
378 pa_handle = NULL;
379 }
380 }
381 return ret;
382 } //}}}
383
384 // PulseAudio Event Callbacks //{{{
385 static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
386 {
387 pa_threaded_mainloop *loop = pdata;
388 pa_stream_state_t state;
389
390 state = pa_stream_get_state(stream);
391 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
392 pa_threaded_mainloop_signal(loop, 0);
393 }//}}}
394
395 static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
396 {
397 ALCdevice *Device = pdata;
398 pulse_data *data = Device->ExtraData;
399 (void)stream;
400
401 pa_threaded_mainloop_signal(data->loop, 0);
402 }//}}}
403
404 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
405 {
406 ALCdevice *device = pdata;
407 pulse_data *data = device->ExtraData;
408
409 data->attr = *pa_stream_get_buffer_attr(stream);
410 WARN("PulseAudio modified buffer length: minreq=%d, tlength=%d\n", data->attr.minreq, data->attr.tlength);
411
412 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
413 device->NumUpdates = data->attr.tlength / data->attr.minreq;
414 }//}}}
415
416 static void context_state_callback2(pa_context *context, void *pdata) //{{{
417 {
418 ALCdevice *Device = pdata;
419 pulse_data *data = Device->ExtraData;
420
421 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
422 {
423 ERR("Received context failure!\n");
424 aluHandleDisconnect(Device);
425 }
426 pa_threaded_mainloop_signal(data->loop, 0);
427 }//}}}
428
429 static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
430 {
431 ALCdevice *Device = pdata;
432 pulse_data *data = Device->ExtraData;
433
434 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
435 {
436 ERR("Received stream failure!\n");
437 aluHandleDisconnect(Device);
438 }
439 pa_threaded_mainloop_signal(data->loop, 0);
440 }//}}}
441
442 static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
443 {
444 ALCdevice *Device = pdata;
445 pulse_data *data = Device->ExtraData;
446 (void)stream;
447 (void)success;
448
449 pa_threaded_mainloop_signal(data->loop, 0);
450 }//}}}
451
452 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
453 {
454 ALCdevice *device = pdata;
455 pulse_data *data = device->ExtraData;
456 char chanmap_str[256] = "";
457 const struct {
458 const char *str;
459 enum DevFmtChannels chans;
460 } chanmaps[] = {
461 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
462 DevFmtX71 },
463 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
464 DevFmtX61 },
465 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
466 DevFmtX51 },
467 { "front-left,front-right,front-center,lfe,side-left,side-right",
468 DevFmtX51Side },
469 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
470 { "front-left,front-right", DevFmtStereo },
471 { "mono", DevFmtMono },
472 { NULL, 0 }
473 };
474 int i;
475 (void)context;
476
477 if(eol)
478 {
479 pa_threaded_mainloop_signal(data->loop, 0);
480 return;
481 }
482
483 for(i = 0;chanmaps[i].str;i++)
484 {
485 pa_channel_map map;
486 if(!pa_channel_map_parse(&map, chanmaps[i].str))
487 continue;
488
489 if(pa_channel_map_equal(&info->channel_map, &map)
490 #if PA_CHECK_VERSION(0,9,15)
491 || (pa_channel_map_superset &&
492 pa_channel_map_superset(&info->channel_map, &map))
493 #endif
494 )
495 {
496 device->FmtChans = chanmaps[i].chans;
497 return;
498 }
499 }
500
501 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
502 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
503 }//}}}
504
505 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
506 {
507 pa_threaded_mainloop *loop = pdata;
508 void *temp;
509 ALuint i;
510
511 (void)context;
512
513 if(eol)
514 {
515 pa_threaded_mainloop_signal(loop, 0);
516 return;
517 }
518
519 for(i = 0;i < numDevNames;i++)
520 {
521 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
522 return;
523 }
524
525 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
526
527 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
528 if(temp)
529 {
530 allDevNameMap = temp;
531 allDevNameMap[numDevNames].name = strdup(info->description);
532 allDevNameMap[numDevNames].device_name = strdup(info->name);
533 numDevNames++;
534 }
535 }//}}}
536
537 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
538 {
539 pa_threaded_mainloop *loop = pdata;
540 void *temp;
541 ALuint i;
542
543 (void)context;
544
545 if(eol)
546 {
547 pa_threaded_mainloop_signal(loop, 0);
548 return;
549 }
550
551 for(i = 0;i < numCaptureDevNames;i++)
552 {
553 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
554 return;
555 }
556
557 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
558
559 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
560 if(temp)
561 {
562 allCaptureDevNameMap = temp;
563 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
564 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
565 numCaptureDevNames++;
566 }
567 }//}}}
568 //}}}
569
570
571 static pa_stream *connect_playback_stream(const char *device_name,
572 pa_threaded_mainloop *loop, pa_context *context,
573 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
574 pa_channel_map *chanmap)
575 {
576 pa_stream_state_t state;
577 pa_stream *stream;
578
579 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
580 if(!stream)
581 {
582 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
583 return NULL;
584 }
585
586 pa_stream_set_state_callback(stream, stream_state_callback, loop);
587
588 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
589 {
590 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
591 pa_stream_unref(stream);
592 return NULL;
593 }
594
595 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
596 {
597 if(!PA_STREAM_IS_GOOD(state))
598 {
599 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
600 pa_stream_unref(stream);
601 return NULL;
602 }
603
604 pa_threaded_mainloop_wait(loop);
605 }
606 pa_stream_set_state_callback(stream, NULL, NULL);
607
608 return stream;
609 }
610
611 static pa_stream *connect_record_stream(const char *device_name,
612 pa_threaded_mainloop *loop, pa_context *context,
613 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
614 pa_channel_map *chanmap)
615 {
616 pa_stream_state_t state;
617 pa_stream *stream;
618
619 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
620 if(!stream)
621 {
622 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
623 return NULL;
624 }
625
626 pa_stream_set_state_callback(stream, stream_state_callback, loop);
627
628 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
629 {
630 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
631 pa_stream_unref(stream);
632 return NULL;
633 }
634
635 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
636 {
637 if(!PA_STREAM_IS_GOOD(state))
638 {
639 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
640 pa_stream_unref(stream);
641 return NULL;
642 }
643
644 pa_threaded_mainloop_wait(loop);
645 }
646 pa_stream_set_state_callback(stream, NULL, NULL);
647
648 return stream;
649 }
650
651
652 static void probe_devices(ALboolean capture)
653 {
654 pa_threaded_mainloop *loop;
655
656 if(capture == AL_FALSE)
657 allDevNameMap = malloc(sizeof(DevMap) * 1);
658 else
659 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
660
661 if((loop=pa_threaded_mainloop_new()) &&
662 pa_threaded_mainloop_start(loop) >= 0)
663 {
664 pa_context *context;
665
666 pa_threaded_mainloop_lock(loop);
667 context = connect_context(loop, AL_FALSE);
668 if(context)
669 {
670 pa_operation *o;
671
672 if(capture == AL_FALSE)
673 {
674 pa_stream_flags_t flags;
675 pa_sample_spec spec;
676 pa_stream *stream;
677
678 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
679 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
680
681 spec.format = PA_SAMPLE_S16NE;
682 spec.rate = 44100;
683 spec.channels = 2;
684
685 stream = connect_playback_stream(NULL, loop, context, flags,
686 NULL, &spec, NULL);
687 if(stream)
688 {
689 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
690 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
691 pa_threaded_mainloop_wait(loop);
692 pa_operation_unref(o);
693
694 pa_stream_disconnect(stream);
695 pa_stream_unref(stream);
696 stream = NULL;
697 }
698
699 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
700 }
701 else
702 {
703 pa_stream_flags_t flags;
704 pa_sample_spec spec;
705 pa_stream *stream;
706
707 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
708 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
709
710 spec.format = PA_SAMPLE_S16NE;
711 spec.rate = 44100;
712 spec.channels = 1;
713
714 stream = connect_record_stream(NULL, loop, context, flags,
715 NULL, &spec, NULL);
716 if(stream)
717 {
718 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
719 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
720 pa_threaded_mainloop_wait(loop);
721 pa_operation_unref(o);
722
723 pa_stream_disconnect(stream);
724 pa_stream_unref(stream);
725 stream = NULL;
726 }
727
728 o = pa_context_get_source_info_list(context, source_device_callback, loop);
729 }
730 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
731 pa_threaded_mainloop_wait(loop);
732 pa_operation_unref(o);
733
734 pa_context_disconnect(context);
735 pa_context_unref(context);
736 }
737 pa_threaded_mainloop_unlock(loop);
738 pa_threaded_mainloop_stop(loop);
739 }
740 if(loop)
741 pa_threaded_mainloop_free(loop);
742 }
743
744
745 static void stream_write_callback(pa_stream *stream, size_t len, void *pdata)
746 {
747 ALCdevice *Device = pdata;
748 pulse_data *data = Device->ExtraData;
749 (void)stream;
750 (void)len;
751
752 pa_threaded_mainloop_signal(data->loop, 0);
753 }
754
755 static ALuint PulseProc(ALvoid *param)
756 {
757 ALCdevice *Device = param;
758 pulse_data *data = Device->ExtraData;
759 size_t frame_size;
760 size_t len;
761
762 SetRTPriority();
763
764 frame_size = pa_frame_size(&data->spec);
765 pa_threaded_mainloop_lock(data->loop);
766 do {
767 len = pa_stream_writable_size(data->stream);
768 if(len < data->attr.minreq)
769 {
770 pa_threaded_mainloop_wait(data->loop);
771 continue;
772 }
773 len -= len%data->attr.minreq;
774
775 while(len > 0)
776 {
777 size_t newlen = len;
778 void *buf;
779 pa_free_cb_t free_func = NULL;
780
781 #if PA_CHECK_VERSION(0,9,16)
782 if(!pa_stream_begin_write ||
783 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
784 #endif
785 {
786 buf = pa_xmalloc(newlen);
787 free_func = pa_xfree;
788 }
789 pa_threaded_mainloop_unlock(data->loop);
790
791 aluMixData(Device, buf, newlen/frame_size);
792
793 pa_threaded_mainloop_lock(data->loop);
794 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
795 len -= newlen;
796 }
797 } while(!data->killNow && Device->Connected);
798 pa_threaded_mainloop_unlock(data->loop);
799
800 return 0;
801 }
802
803
804 static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
805 {
806 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
807 memset(data, 0, sizeof(*data));
808
809 if(!(data->loop = pa_threaded_mainloop_new()))
810 {
811 ERR("pa_threaded_mainloop_new() failed!\n");
812 goto out;
813 }
814 if(pa_threaded_mainloop_start(data->loop) < 0)
815 {
816 ERR("pa_threaded_mainloop_start() failed\n");
817 goto out;
818 }
819
820 pa_threaded_mainloop_lock(data->loop);
821 device->ExtraData = data;
822
823 data->context = connect_context(data->loop, AL_FALSE);
824 if(!data->context)
825 {
826 pa_threaded_mainloop_unlock(data->loop);
827 goto out;
828 }
829 pa_context_set_state_callback(data->context, context_state_callback2, device);
830
831 device->szDeviceName = strdup(device_name);
832
833 pa_threaded_mainloop_unlock(data->loop);
834 return ALC_TRUE;
835
836 out:
837 if(data->loop)
838 {
839 pa_threaded_mainloop_stop(data->loop);
840 pa_threaded_mainloop_free(data->loop);
841 }
842
843 device->ExtraData = NULL;
844 pa_xfree(data);
845 return ALC_FALSE;
846 } //}}}
847
848 static void pulse_close(ALCdevice *device) //{{{
849 {
850 pulse_data *data = device->ExtraData;
851
852 pa_threaded_mainloop_lock(data->loop);
853
854 if(data->stream)
855 {
856 pa_stream_disconnect(data->stream);
857 pa_stream_unref(data->stream);
858 }
859
860 pa_context_disconnect(data->context);
861 pa_context_unref(data->context);
862
863 pa_threaded_mainloop_unlock(data->loop);
864
865 pa_threaded_mainloop_stop(data->loop);
866 pa_threaded_mainloop_free(data->loop);
867
868 free(data->device_name);
869
870 device->ExtraData = NULL;
871 pa_xfree(data);
872 } //}}}
873 //}}}
874
875 // OpenAL {{{
876 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
877 {
878 const char *pulse_name = NULL;
879 pulse_data *data;
880
881 if(!allDevNameMap)
882 probe_devices(AL_FALSE);
883
884 if(!device_name && numDevNames > 0)
885 {
886 device_name = allDevNameMap[0].name;
887 pulse_name = allDevNameMap[0].device_name;
888 }
889 else
890 {
891 ALuint i;
892
893 for(i = 0;i < numDevNames;i++)
894 {
895 if(strcmp(device_name, allDevNameMap[i].name) == 0)
896 {
897 pulse_name = allDevNameMap[i].device_name;
898 break;
899 }
900 }
901 if(i == numDevNames)
902 return ALC_INVALID_VALUE;
903 }
904
905 if(pulse_open(device, device_name) == ALC_FALSE)
906 return ALC_INVALID_VALUE;
907
908 data = device->ExtraData;
909 data->device_name = strdup(pulse_name);
910
911 return ALC_NO_ERROR;
912 } //}}}
913
914 static void pulse_close_playback(ALCdevice *device) //{{{
915 {
916 pulse_close(device);
917 } //}}}
918
919 static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
920 {
921 pulse_data *data = device->ExtraData;
922 pa_stream_flags_t flags = 0;
923 pa_channel_map chanmap;
924
925 pa_threaded_mainloop_lock(data->loop);
926
927 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
928 {
929 pa_operation *o;
930 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
931 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
932 pa_threaded_mainloop_wait(data->loop);
933 pa_operation_unref(o);
934 }
935 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
936 flags |= PA_STREAM_FIX_RATE;
937
938 flags |= PA_STREAM_EARLY_REQUESTS;
939 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
940 flags |= PA_STREAM_DONT_MOVE;
941
942 switch(device->FmtType)
943 {
944 case DevFmtByte:
945 device->FmtType = DevFmtUByte;
946 /* fall-through */
947 case DevFmtUByte:
948 data->spec.format = PA_SAMPLE_U8;
949 break;
950 case DevFmtUShort:
951 device->FmtType = DevFmtShort;
952 /* fall-through */
953 case DevFmtShort:
954 data->spec.format = PA_SAMPLE_S16NE;
955 break;
956 case DevFmtUInt:
957 device->FmtType = DevFmtInt;
958 /* fall-through */
959 case DevFmtInt:
960 data->spec.format = PA_SAMPLE_S32NE;
961 break;
962 case DevFmtFloat:
963 data->spec.format = PA_SAMPLE_FLOAT32NE;
964 break;
965 }
966 data->spec.rate = device->Frequency;
967 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
968
969 if(pa_sample_spec_valid(&data->spec) == 0)
970 {
971 ERR("Invalid sample format\n");
972 pa_threaded_mainloop_unlock(data->loop);
973 return ALC_FALSE;
974 }
975
976 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
977 {
978 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
979 pa_threaded_mainloop_unlock(data->loop);
980 return ALC_FALSE;
981 }
982 SetDefaultWFXChannelOrder(device);
983
984 data->attr.prebuf = -1;
985 data->attr.fragsize = -1;
986 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
987 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
988 data->attr.maxlength = -1;
989
990 data->stream = connect_playback_stream(data->device_name, data->loop,
991 data->context, flags, &data->attr,
992 &data->spec, &chanmap);
993 if(!data->stream)
994 {
995 pa_threaded_mainloop_unlock(data->loop);
996 return ALC_FALSE;
997 }
998
999 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1000
1001 data->spec = *(pa_stream_get_sample_spec(data->stream));
1002 if(device->Frequency != data->spec.rate)
1003 {
1004 size_t frame_size = pa_frame_size(&data->spec);
1005 pa_operation *o;
1006
1007 /* Server updated our playback rate, so modify the buffer attribs
1008 * accordingly. */
1009 data->attr.minreq = (ALuint64)(data->attr.minreq/frame_size) *
1010 data->spec.rate / device->Frequency * frame_size;
1011 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1012
1013 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1014 stream_success_callback, device);
1015 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1016 pa_threaded_mainloop_wait(data->loop);
1017 pa_operation_unref(o);
1018
1019 device->Frequency = data->spec.rate;
1020 }
1021
1022 #if PA_CHECK_VERSION(0,9,15)
1023 if(pa_stream_set_buffer_attr_callback)
1024 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1025 #endif
1026 pa_stream_set_write_callback(data->stream, stream_write_callback, device);
1027 pa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
1028
1029 data->attr = *(pa_stream_get_buffer_attr(data->stream));
1030 device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
1031 device->NumUpdates = data->attr.tlength / data->attr.minreq;
1032 if(device->NumUpdates <= 1)
1033 {
1034 pa_operation *o;
1035
1036 ERR("PulseAudio returned minreq=%d, tlength=%d; expect lag or break up\n", data->attr.minreq, data->attr.tlength);
1037
1038 /* Server gave a comparatively large minreq, so modify the tlength. */
1039 device->NumUpdates = 2;
1040 data->attr.tlength = data->attr.minreq * device->NumUpdates;
1041
1042 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1043 stream_success_callback, device);
1044 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1045 pa_threaded_mainloop_wait(data->loop);
1046 pa_operation_unref(o);
1047 }
1048
1049 data->thread = StartThread(PulseProc, device);
1050 if(!data->thread)
1051 {
1052 #if PA_CHECK_VERSION(0,9,15)
1053 if(pa_stream_set_buffer_attr_callback)
1054 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1055 #endif
1056 pa_stream_set_write_callback(data->stream, NULL, NULL);
1057 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1058 pa_stream_disconnect(data->stream);
1059 pa_stream_unref(data->stream);
1060 data->stream = NULL;
1061
1062 pa_threaded_mainloop_unlock(data->loop);
1063 return ALC_FALSE;
1064 }
1065
1066 pa_threaded_mainloop_unlock(data->loop);
1067 return ALC_TRUE;
1068 } //}}}
1069
1070 static void pulse_stop_playback(ALCdevice *device) //{{{
1071 {
1072 pulse_data *data = device->ExtraData;
1073
1074 if(!data->stream)
1075 return;
1076
1077 data->killNow = AL_TRUE;
1078 if(data->thread)
1079 {
1080 pa_threaded_mainloop_signal(data->loop, 0);
1081 StopThread(data->thread);
1082 data->thread = NULL;
1083 }
1084 data->killNow = AL_FALSE;
1085
1086 pa_threaded_mainloop_lock(data->loop);
1087
1088 #if PA_CHECK_VERSION(0,9,15)
1089 if(pa_stream_set_buffer_attr_callback)
1090 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1091 #endif
1092 pa_stream_set_write_callback(data->stream, NULL, NULL);
1093 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1094 pa_stream_disconnect(data->stream);
1095 pa_stream_unref(data->stream);
1096 data->stream = NULL;
1097
1098 pa_threaded_mainloop_unlock(data->loop);
1099 } //}}}
1100
1101
1102 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1103 {
1104 const char *pulse_name = NULL;
1105 pa_stream_flags_t flags = 0;
1106 pa_channel_map chanmap;
1107 pulse_data *data;
1108 ALuint samples;
1109
1110 if(!allCaptureDevNameMap)
1111 probe_devices(AL_TRUE);
1112
1113 if(!device_name && numCaptureDevNames > 0)
1114 {
1115 device_name = allCaptureDevNameMap[0].name;
1116 pulse_name = allCaptureDevNameMap[0].device_name;
1117 }
1118 else
1119 {
1120 ALuint i;
1121 for(i = 0;i < numCaptureDevNames;i++)
1122 {
1123 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1124 {
1125 pulse_name = allCaptureDevNameMap[i].device_name;
1126 break;
1127 }
1128 }
1129 if(i == numCaptureDevNames)
1130 return ALC_INVALID_VALUE;
1131 }
1132
1133 if(pulse_open(device, device_name) == ALC_FALSE)
1134 return ALC_INVALID_VALUE;
1135
1136 data = device->ExtraData;
1137 pa_threaded_mainloop_lock(data->loop);
1138
1139 data->spec.rate = device->Frequency;
1140 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1141
1142 switch(device->FmtType)
1143 {
1144 case DevFmtUByte:
1145 data->spec.format = PA_SAMPLE_U8;
1146 break;
1147 case DevFmtShort:
1148 data->spec.format = PA_SAMPLE_S16NE;
1149 break;
1150 case DevFmtInt:
1151 data->spec.format = PA_SAMPLE_S32NE;
1152 break;
1153 case DevFmtFloat:
1154 data->spec.format = PA_SAMPLE_FLOAT32NE;
1155 break;
1156 case DevFmtByte:
1157 case DevFmtUShort:
1158 case DevFmtUInt:
1159 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1160 pa_threaded_mainloop_unlock(data->loop);
1161 goto fail;
1162 }
1163
1164 if(pa_sample_spec_valid(&data->spec) == 0)
1165 {
1166 ERR("Invalid sample format\n");
1167 pa_threaded_mainloop_unlock(data->loop);
1168 goto fail;
1169 }
1170
1171 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1172 {
1173 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1174 pa_threaded_mainloop_unlock(data->loop);
1175 goto fail;
1176 }
1177
1178 samples = device->UpdateSize * device->NumUpdates;
1179 samples = maxu(samples, 100 * device->Frequency / 1000);
1180
1181 data->attr.minreq = -1;
1182 data->attr.prebuf = -1;
1183 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1184 data->attr.tlength = -1;
1185 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1186 pa_frame_size(&data->spec);
1187
1188 flags |= PA_STREAM_DONT_MOVE;
1189 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1190 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1191 flags, &data->attr, &data->spec,
1192 &chanmap);
1193 if(!data->stream)
1194 {
1195 pa_threaded_mainloop_unlock(data->loop);
1196 goto fail;
1197 }
1198
1199 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1200
1201 pa_threaded_mainloop_unlock(data->loop);
1202 return ALC_NO_ERROR;
1203
1204 fail:
1205 pulse_close(device);
1206 return ALC_INVALID_VALUE;
1207 } //}}}
1208
1209 static void pulse_close_capture(ALCdevice *device) //{{{
1210 {
1211 pulse_close(device);
1212 } //}}}
1213
1214 static void pulse_start_capture(ALCdevice *device) //{{{
1215 {
1216 pulse_data *data = device->ExtraData;
1217 pa_operation *o;
1218
1219 pa_threaded_mainloop_lock(data->loop);
1220 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1221 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1222 pa_threaded_mainloop_wait(data->loop);
1223 pa_operation_unref(o);
1224 pa_threaded_mainloop_unlock(data->loop);
1225 } //}}}
1226
1227 static void pulse_stop_capture(ALCdevice *device) //{{{
1228 {
1229 pulse_data *data = device->ExtraData;
1230 pa_operation *o;
1231
1232 pa_threaded_mainloop_lock(data->loop);
1233 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1234 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1235 pa_threaded_mainloop_wait(data->loop);
1236 pa_operation_unref(o);
1237 pa_threaded_mainloop_unlock(data->loop);
1238 } //}}}
1239
1240 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1241 {
1242 pulse_data *data = device->ExtraData;
1243 ALCuint todo = samples * pa_frame_size(&data->spec);
1244
1245 pa_threaded_mainloop_lock(data->loop);
1246 /* Capture is done in fragment-sized chunks, so we loop until we get all
1247 * that's available */
1248 data->last_readable -= todo;
1249 while(todo > 0)
1250 {
1251 size_t rem = todo;
1252
1253 if(data->cap_len == 0)
1254 {
1255 pa_stream_state_t state;
1256
1257 state = pa_stream_get_state(data->stream);
1258 if(!PA_STREAM_IS_GOOD(state))
1259 {
1260 aluHandleDisconnect(device);
1261 break;
1262 }
1263 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1264 {
1265 ERR("pa_stream_peek() failed: %s\n",
1266 pa_strerror(pa_context_errno(data->context)));
1267 aluHandleDisconnect(device);
1268 break;
1269 }
1270 data->cap_remain = data->cap_len;
1271 }
1272 if(rem > data->cap_remain)
1273 rem = data->cap_remain;
1274
1275 memcpy(buffer, data->cap_store, rem);
1276
1277 buffer = (ALbyte*)buffer + rem;
1278 todo -= rem;
1279
1280 data->cap_store = (ALbyte*)data->cap_store + rem;
1281 data->cap_remain -= rem;
1282 if(data->cap_remain == 0)
1283 {
1284 pa_stream_drop(data->stream);
1285 data->cap_len = 0;
1286 }
1287 }
1288 if(todo > 0)
1289 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1290 pa_threaded_mainloop_unlock(data->loop);
1291
1292 return ALC_NO_ERROR;
1293 } //}}}
1294
1295 static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1296 {
1297 pulse_data *data = device->ExtraData;
1298 size_t readable = data->cap_remain;
1299
1300 pa_threaded_mainloop_lock(data->loop);
1301 if(device->Connected)
1302 {
1303 ssize_t got = pa_stream_readable_size(data->stream);
1304 if(got > 0 && (size_t)got > data->cap_len)
1305 readable += got - data->cap_len;
1306 }
1307 pa_threaded_mainloop_unlock(data->loop);
1308
1309 if(data->last_readable < readable)
1310 data->last_readable = readable;
1311 return data->last_readable / pa_frame_size(&data->spec);
1312 } //}}}
1313
1314
1315 static const BackendFuncs pulse_funcs = { //{{{
1316 pulse_open_playback,
1317 pulse_close_playback,
1318 pulse_reset_playback,
1319 pulse_stop_playback,
1320 pulse_open_capture,
1321 pulse_close_capture,
1322 pulse_start_capture,
1323 pulse_stop_capture,
1324 pulse_capture_samples,
1325 pulse_available_samples
1326 }; //}}}
1327
1328 ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
1329 {
1330 ALCboolean ret = ALC_FALSE;
1331
1332 if(pulse_load())
1333 {
1334 pa_threaded_mainloop *loop;
1335
1336 pulse_ctx_flags = 0;
1337 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1338 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1339
1340 if((loop=pa_threaded_mainloop_new()) &&
1341 pa_threaded_mainloop_start(loop) >= 0)
1342 {
1343 pa_context *context;
1344
1345 pa_threaded_mainloop_lock(loop);
1346 context = connect_context(loop, AL_TRUE);
1347 if(context)
1348 {
1349 ret = ALC_TRUE;
1350
1351 pa_context_disconnect(context);
1352 pa_context_unref(context);
1353 }
1354 pa_threaded_mainloop_unlock(loop);
1355 pa_threaded_mainloop_stop(loop);
1356 }
1357 if(loop)
1358 pa_threaded_mainloop_free(loop);
1359 }
1360
1361 if(ret != ALC_FALSE)
1362 *func_list = pulse_funcs;
1363 return ret;
1364 } //}}}
1365
1366 void alc_pulse_deinit(void) //{{{
1367 {
1368 ALuint i;
1369
1370 for(i = 0;i < numDevNames;++i)
1371 {
1372 free(allDevNameMap[i].name);
1373 free(allDevNameMap[i].device_name);
1374 }
1375 free(allDevNameMap);
1376 allDevNameMap = NULL;
1377 numDevNames = 0;
1378
1379 for(i = 0;i < numCaptureDevNames;++i)
1380 {
1381 free(allCaptureDevNameMap[i].name);
1382 free(allCaptureDevNameMap[i].device_name);
1383 }
1384 free(allCaptureDevNameMap);
1385 allCaptureDevNameMap = NULL;
1386 numCaptureDevNames = 0;
1387
1388 #ifdef HAVE_DYNLOAD
1389 if(pa_handle)
1390 CloseLib(pa_handle);
1391 pa_handle = NULL;
1392 #endif
1393 } //}}}
1394
1395 void alc_pulse_probe(enum DevProbe type) //{{{
1396 {
1397 ALuint i;
1398
1399 switch(type)
1400 {
1401 case ALL_DEVICE_PROBE:
1402 for(i = 0;i < numDevNames;++i)
1403 {
1404 free(allDevNameMap[i].name);
1405 free(allDevNameMap[i].device_name);
1406 }
1407 free(allDevNameMap);
1408 allDevNameMap = NULL;
1409 numDevNames = 0;
1410
1411 probe_devices(AL_FALSE);
1412
1413 for(i = 0;i < numDevNames;i++)
1414 AppendAllDeviceList(allDevNameMap[i].name);
1415 break;
1416
1417 case CAPTURE_DEVICE_PROBE:
1418 for(i = 0;i < numCaptureDevNames;++i)
1419 {
1420 free(allCaptureDevNameMap[i].name);
1421 free(allCaptureDevNameMap[i].device_name);
1422 }
1423 free(allCaptureDevNameMap);
1424 allCaptureDevNameMap = NULL;
1425 numCaptureDevNames = 0;
1426
1427 probe_devices(AL_TRUE);
1428
1429 for(i = 0;i < numCaptureDevNames;i++)
1430 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1431 break;
1432 }
1433 } //}}}
1434 //}}}
1435
1436 #else
1437
1438 #warning "Unsupported API version, backend will be unavailable!"
1439
1440 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1441 { return ALC_FALSE; (void)func_list; }
1442
1443 void alc_pulse_deinit(void)
1444 { }
1445
1446 void alc_pulse_probe(enum DevProbe type)
1447 { (void)type; }
1448
1449 #endif
Software OpenAL implementation