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Remove some unneeded markers
[openal-soft.git] / Alc / backends / pulseaudio.c
blobc5f9d0433963d8bb2a5be14b6214c7f5544ff383
1 /**
2 * OpenAL cross platform audio library
3 * Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
4 * Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
19 * Or go to http://www.gnu.org/copyleft/lgpl.html
20 */
21
22 #include "config.h"
23
24 #include "alMain.h"
25
26 #include <pulse/pulseaudio.h>
27
28 #if PA_API_VERSION == 12
29
30 #ifndef PA_CHECK_VERSION
31 #define PA_CHECK_VERSION(major,minor,micro) \
32 ((PA_MAJOR > (major)) || \
33 (PA_MAJOR == (major) && PA_MINOR > (minor)) || \
34 (PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
35 #endif
36
37 #ifdef HAVE_DYNLOAD
38 static void *pa_handle;
39 #define MAKE_FUNC(x) static typeof(x) * p##x
40 MAKE_FUNC(pa_context_unref);
41 MAKE_FUNC(pa_sample_spec_valid);
42 MAKE_FUNC(pa_frame_size);
43 MAKE_FUNC(pa_stream_drop);
44 MAKE_FUNC(pa_strerror);
45 MAKE_FUNC(pa_context_get_state);
46 MAKE_FUNC(pa_stream_get_state);
47 MAKE_FUNC(pa_threaded_mainloop_signal);
48 MAKE_FUNC(pa_stream_peek);
49 MAKE_FUNC(pa_threaded_mainloop_wait);
50 MAKE_FUNC(pa_threaded_mainloop_unlock);
51 MAKE_FUNC(pa_threaded_mainloop_in_thread);
52 MAKE_FUNC(pa_context_new);
53 MAKE_FUNC(pa_threaded_mainloop_stop);
54 MAKE_FUNC(pa_context_disconnect);
55 MAKE_FUNC(pa_threaded_mainloop_start);
56 MAKE_FUNC(pa_threaded_mainloop_get_api);
57 MAKE_FUNC(pa_context_set_state_callback);
58 MAKE_FUNC(pa_stream_write);
59 MAKE_FUNC(pa_xfree);
60 MAKE_FUNC(pa_stream_connect_record);
61 MAKE_FUNC(pa_stream_connect_playback);
62 MAKE_FUNC(pa_stream_readable_size);
63 MAKE_FUNC(pa_stream_writable_size);
64 MAKE_FUNC(pa_stream_cork);
65 MAKE_FUNC(pa_stream_is_suspended);
66 MAKE_FUNC(pa_stream_get_device_name);
67 MAKE_FUNC(pa_path_get_filename);
68 MAKE_FUNC(pa_get_binary_name);
69 MAKE_FUNC(pa_threaded_mainloop_free);
70 MAKE_FUNC(pa_context_errno);
71 MAKE_FUNC(pa_xmalloc);
72 MAKE_FUNC(pa_stream_unref);
73 MAKE_FUNC(pa_threaded_mainloop_accept);
74 MAKE_FUNC(pa_stream_set_write_callback);
75 MAKE_FUNC(pa_threaded_mainloop_new);
76 MAKE_FUNC(pa_context_connect);
77 MAKE_FUNC(pa_stream_set_buffer_attr);
78 MAKE_FUNC(pa_stream_get_buffer_attr);
79 MAKE_FUNC(pa_stream_get_sample_spec);
80 MAKE_FUNC(pa_stream_get_time);
81 MAKE_FUNC(pa_stream_set_read_callback);
82 MAKE_FUNC(pa_stream_set_state_callback);
83 MAKE_FUNC(pa_stream_set_moved_callback);
84 MAKE_FUNC(pa_stream_set_underflow_callback);
85 MAKE_FUNC(pa_stream_new);
86 MAKE_FUNC(pa_stream_disconnect);
87 MAKE_FUNC(pa_threaded_mainloop_lock);
88 MAKE_FUNC(pa_channel_map_init_auto);
89 MAKE_FUNC(pa_channel_map_parse);
90 MAKE_FUNC(pa_channel_map_snprint);
91 MAKE_FUNC(pa_channel_map_equal);
92 MAKE_FUNC(pa_context_get_server_info);
93 MAKE_FUNC(pa_context_get_sink_info_by_name);
94 MAKE_FUNC(pa_context_get_sink_info_list);
95 MAKE_FUNC(pa_context_get_source_info_by_name);
96 MAKE_FUNC(pa_context_get_source_info_list);
97 MAKE_FUNC(pa_operation_get_state);
98 MAKE_FUNC(pa_operation_unref);
99 #if PA_CHECK_VERSION(0,9,15)
100 MAKE_FUNC(pa_channel_map_superset);
101 MAKE_FUNC(pa_stream_set_buffer_attr_callback);
102 #endif
103 #if PA_CHECK_VERSION(0,9,16)
104 MAKE_FUNC(pa_stream_begin_write);
105 #endif
106 #undef MAKE_FUNC
107
108 #define pa_context_unref ppa_context_unref
109 #define pa_sample_spec_valid ppa_sample_spec_valid
110 #define pa_frame_size ppa_frame_size
111 #define pa_stream_drop ppa_stream_drop
112 #define pa_strerror ppa_strerror
113 #define pa_context_get_state ppa_context_get_state
114 #define pa_stream_get_state ppa_stream_get_state
115 #define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
116 #define pa_stream_peek ppa_stream_peek
117 #define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
118 #define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
119 #define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
120 #define pa_context_new ppa_context_new
121 #define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
122 #define pa_context_disconnect ppa_context_disconnect
123 #define pa_threaded_mainloop_start ppa_threaded_mainloop_start
124 #define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
125 #define pa_context_set_state_callback ppa_context_set_state_callback
126 #define pa_stream_write ppa_stream_write
127 #define pa_xfree ppa_xfree
128 #define pa_stream_connect_record ppa_stream_connect_record
129 #define pa_stream_connect_playback ppa_stream_connect_playback
130 #define pa_stream_readable_size ppa_stream_readable_size
131 #define pa_stream_writable_size ppa_stream_writable_size
132 #define pa_stream_cork ppa_stream_cork
133 #define pa_stream_is_suspended ppa_stream_is_suspended
134 #define pa_stream_get_device_name ppa_stream_get_device_name
135 #define pa_path_get_filename ppa_path_get_filename
136 #define pa_get_binary_name ppa_get_binary_name
137 #define pa_threaded_mainloop_free ppa_threaded_mainloop_free
138 #define pa_context_errno ppa_context_errno
139 #define pa_xmalloc ppa_xmalloc
140 #define pa_stream_unref ppa_stream_unref
141 #define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
142 #define pa_stream_set_write_callback ppa_stream_set_write_callback
143 #define pa_threaded_mainloop_new ppa_threaded_mainloop_new
144 #define pa_context_connect ppa_context_connect
145 #define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
146 #define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
147 #define pa_stream_get_sample_spec ppa_stream_get_sample_spec
148 #define pa_stream_get_time ppa_stream_get_time
149 #define pa_stream_set_read_callback ppa_stream_set_read_callback
150 #define pa_stream_set_state_callback ppa_stream_set_state_callback
151 #define pa_stream_set_moved_callback ppa_stream_set_moved_callback
152 #define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
153 #define pa_stream_new ppa_stream_new
154 #define pa_stream_disconnect ppa_stream_disconnect
155 #define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
156 #define pa_channel_map_init_auto ppa_channel_map_init_auto
157 #define pa_channel_map_parse ppa_channel_map_parse
158 #define pa_channel_map_snprint ppa_channel_map_snprint
159 #define pa_channel_map_equal ppa_channel_map_equal
160 #define pa_context_get_server_info ppa_context_get_server_info
161 #define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
162 #define pa_context_get_sink_info_list ppa_context_get_sink_info_list
163 #define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
164 #define pa_context_get_source_info_list ppa_context_get_source_info_list
165 #define pa_operation_get_state ppa_operation_get_state
166 #define pa_operation_unref ppa_operation_unref
167 #if PA_CHECK_VERSION(0,9,15)
168 #define pa_channel_map_superset ppa_channel_map_superset
169 #define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
170 #endif
171 #if PA_CHECK_VERSION(0,9,16)
172 #define pa_stream_begin_write ppa_stream_begin_write
173 #endif
174
175 #endif
176
177 #ifndef PATH_MAX
178 #define PATH_MAX 4096
179 #endif
180
181 typedef struct {
182 char *device_name;
183
184 const void *cap_store;
185 size_t cap_len;
186 size_t cap_remain;
187
188 ALCuint last_readable;
189
190 pa_buffer_attr attr;
191 pa_sample_spec spec;
192
193 pa_threaded_mainloop *loop;
194
195 ALvoid *thread;
196 volatile ALboolean killNow;
197
198 pa_stream *stream;
199 pa_context *context;
200 } pulse_data;
201
202 typedef struct {
203 char *name;
204 char *device_name;
205 } DevMap;
206
207
208 static DevMap *allDevNameMap;
209 static ALuint numDevNames;
210 static DevMap *allCaptureDevNameMap;
211 static ALuint numCaptureDevNames;
212 static pa_context_flags_t pulse_ctx_flags;
213
214
215 static ALCboolean pulse_load(void)
216 {
217 ALCboolean ret = ALC_TRUE;
218 #ifdef HAVE_DYNLOAD
219 if(!pa_handle)
220 {
221 #ifdef _WIN32
222 #define PALIB "libpulse-0.dll"
223 #elif defined(__APPLE__) && defined(__MACH__)
224 #define PALIB "libpulse.0.dylib"
225 #else
226 #define PALIB "libpulse.so.0"
227 #endif
228 pa_handle = LoadLib(PALIB);
229 if(!pa_handle)
230 return ALC_FALSE;
231
232 #define LOAD_FUNC(x) do { \
233 p##x = GetSymbol(pa_handle, #x); \
234 if(!(p##x)) { \
235 ret = ALC_FALSE; \
236 } \
237 } while(0)
238 LOAD_FUNC(pa_context_unref);
239 LOAD_FUNC(pa_sample_spec_valid);
240 LOAD_FUNC(pa_stream_drop);
241 LOAD_FUNC(pa_frame_size);
242 LOAD_FUNC(pa_strerror);
243 LOAD_FUNC(pa_context_get_state);
244 LOAD_FUNC(pa_stream_get_state);
245 LOAD_FUNC(pa_threaded_mainloop_signal);
246 LOAD_FUNC(pa_stream_peek);
247 LOAD_FUNC(pa_threaded_mainloop_wait);
248 LOAD_FUNC(pa_threaded_mainloop_unlock);
249 LOAD_FUNC(pa_threaded_mainloop_in_thread);
250 LOAD_FUNC(pa_context_new);
251 LOAD_FUNC(pa_threaded_mainloop_stop);
252 LOAD_FUNC(pa_context_disconnect);
253 LOAD_FUNC(pa_threaded_mainloop_start);
254 LOAD_FUNC(pa_threaded_mainloop_get_api);
255 LOAD_FUNC(pa_context_set_state_callback);
256 LOAD_FUNC(pa_stream_write);
257 LOAD_FUNC(pa_xfree);
258 LOAD_FUNC(pa_stream_connect_record);
259 LOAD_FUNC(pa_stream_connect_playback);
260 LOAD_FUNC(pa_stream_readable_size);
261 LOAD_FUNC(pa_stream_writable_size);
262 LOAD_FUNC(pa_stream_cork);
263 LOAD_FUNC(pa_stream_is_suspended);
264 LOAD_FUNC(pa_stream_get_device_name);
265 LOAD_FUNC(pa_path_get_filename);
266 LOAD_FUNC(pa_get_binary_name);
267 LOAD_FUNC(pa_threaded_mainloop_free);
268 LOAD_FUNC(pa_context_errno);
269 LOAD_FUNC(pa_xmalloc);
270 LOAD_FUNC(pa_stream_unref);
271 LOAD_FUNC(pa_threaded_mainloop_accept);
272 LOAD_FUNC(pa_stream_set_write_callback);
273 LOAD_FUNC(pa_threaded_mainloop_new);
274 LOAD_FUNC(pa_context_connect);
275 LOAD_FUNC(pa_stream_set_buffer_attr);
276 LOAD_FUNC(pa_stream_get_buffer_attr);
277 LOAD_FUNC(pa_stream_get_sample_spec);
278 LOAD_FUNC(pa_stream_get_time);
279 LOAD_FUNC(pa_stream_set_read_callback);
280 LOAD_FUNC(pa_stream_set_state_callback);
281 LOAD_FUNC(pa_stream_set_moved_callback);
282 LOAD_FUNC(pa_stream_set_underflow_callback);
283 LOAD_FUNC(pa_stream_new);
284 LOAD_FUNC(pa_stream_disconnect);
285 LOAD_FUNC(pa_threaded_mainloop_lock);
286 LOAD_FUNC(pa_channel_map_init_auto);
287 LOAD_FUNC(pa_channel_map_parse);
288 LOAD_FUNC(pa_channel_map_snprint);
289 LOAD_FUNC(pa_channel_map_equal);
290 LOAD_FUNC(pa_context_get_server_info);
291 LOAD_FUNC(pa_context_get_sink_info_by_name);
292 LOAD_FUNC(pa_context_get_sink_info_list);
293 LOAD_FUNC(pa_context_get_source_info_by_name);
294 LOAD_FUNC(pa_context_get_source_info_list);
295 LOAD_FUNC(pa_operation_get_state);
296 LOAD_FUNC(pa_operation_unref);
297 #undef LOAD_FUNC
298 #define LOAD_OPTIONAL_FUNC(x) do { \
299 p##x = GetSymbol(pa_handle, #x); \
300 } while(0)
301 #if PA_CHECK_VERSION(0,9,15)
302 LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
303 LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
304 #endif
305 #if PA_CHECK_VERSION(0,9,16)
306 LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
307 #endif
308 #undef LOAD_OPTIONAL_FUNC
309
310 if(ret == ALC_FALSE)
311 {
312 CloseLib(pa_handle);
313 pa_handle = NULL;
314 }
315 }
316 #endif /* HAVE_DYNLOAD */
317 return ret;
318 }
319
320 /* PulseAudio Event Callbacks */
321 static void context_state_callback(pa_context *context, void *pdata)
322 {
323 pa_threaded_mainloop *loop = pdata;
324 pa_context_state_t state;
325
326 state = pa_context_get_state(context);
327 if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
328 pa_threaded_mainloop_signal(loop, 0);
329 }
330
331 static void stream_state_callback(pa_stream *stream, void *pdata)
332 {
333 pa_threaded_mainloop *loop = pdata;
334 pa_stream_state_t state;
335
336 state = pa_stream_get_state(stream);
337 if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
338 pa_threaded_mainloop_signal(loop, 0);
339 }
340
341 static void stream_buffer_attr_callback(pa_stream *stream, void *pdata)
342 {
343 ALCdevice *device = pdata;
344 pulse_data *data = device->ExtraData;
345
346 data->attr = *pa_stream_get_buffer_attr(stream);
347 TRACE("minreq=%d, tlength=%d, prebuf=%d\n", data->attr.minreq, data->attr.tlength, data->attr.prebuf);
348 }
349
350 static void context_state_callback2(pa_context *context, void *pdata)
351 {
352 ALCdevice *Device = pdata;
353 pulse_data *data = Device->ExtraData;
354
355 if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
356 {
357 ERR("Received context failure!\n");
358 aluHandleDisconnect(Device);
359 }
360 pa_threaded_mainloop_signal(data->loop, 0);
361 }
362
363 static void stream_state_callback2(pa_stream *stream, void *pdata)
364 {
365 ALCdevice *Device = pdata;
366 pulse_data *data = Device->ExtraData;
367
368 if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
369 {
370 ERR("Received stream failure!\n");
371 aluHandleDisconnect(Device);
372 }
373 pa_threaded_mainloop_signal(data->loop, 0);
374 }
375
376 static void stream_success_callback(pa_stream *stream, int success, void *pdata)
377 {
378 ALCdevice *Device = pdata;
379 pulse_data *data = Device->ExtraData;
380 (void)stream;
381 (void)success;
382
383 pa_threaded_mainloop_signal(data->loop, 0);
384 }
385
386 static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
387 {
388 ALCdevice *device = pdata;
389 pulse_data *data = device->ExtraData;
390 char chanmap_str[256] = "";
391 const struct {
392 const char *str;
393 enum DevFmtChannels chans;
394 } chanmaps[] = {
395 { "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
396 DevFmtX71 },
397 { "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
398 DevFmtX61 },
399 { "front-left,front-right,front-center,lfe,rear-left,rear-right",
400 DevFmtX51 },
401 { "front-left,front-right,front-center,lfe,side-left,side-right",
402 DevFmtX51Side },
403 { "front-left,front-right,rear-left,rear-right", DevFmtQuad },
404 { "front-left,front-right", DevFmtStereo },
405 { "mono", DevFmtMono },
406 { NULL, 0 }
407 };
408 int i;
409 (void)context;
410
411 if(eol)
412 {
413 pa_threaded_mainloop_signal(data->loop, 0);
414 return;
415 }
416
417 for(i = 0;chanmaps[i].str;i++)
418 {
419 pa_channel_map map;
420 if(!pa_channel_map_parse(&map, chanmaps[i].str))
421 continue;
422
423 if(pa_channel_map_equal(&info->channel_map, &map)
424 #if PA_CHECK_VERSION(0,9,15)
425 || (pa_channel_map_superset &&
426 pa_channel_map_superset(&info->channel_map, &map))
427 #endif
428 )
429 {
430 device->FmtChans = chanmaps[i].chans;
431 return;
432 }
433 }
434
435 pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
436 ERR("Failed to find format for channel map:\n %s\n", chanmap_str);
437 }
438
439 static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
440 {
441 pa_threaded_mainloop *loop = pdata;
442 void *temp;
443 ALuint i;
444
445 (void)context;
446
447 if(eol)
448 {
449 pa_threaded_mainloop_signal(loop, 0);
450 return;
451 }
452
453 for(i = 0;i < numDevNames;i++)
454 {
455 if(strcmp(info->name, allDevNameMap[i].device_name) == 0)
456 return;
457 }
458
459 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
460
461 temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
462 if(temp)
463 {
464 allDevNameMap = temp;
465 allDevNameMap[numDevNames].name = strdup(info->description);
466 allDevNameMap[numDevNames].device_name = strdup(info->name);
467 numDevNames++;
468 }
469 }
470
471 static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
472 {
473 pa_threaded_mainloop *loop = pdata;
474 void *temp;
475 ALuint i;
476
477 (void)context;
478
479 if(eol)
480 {
481 pa_threaded_mainloop_signal(loop, 0);
482 return;
483 }
484
485 for(i = 0;i < numCaptureDevNames;i++)
486 {
487 if(strcmp(info->name, allCaptureDevNameMap[i].device_name) == 0)
488 return;
489 }
490
491 TRACE("Got device \"%s\", \"%s\"\n", info->description, info->name);
492
493 temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
494 if(temp)
495 {
496 allCaptureDevNameMap = temp;
497 allCaptureDevNameMap[numCaptureDevNames].name = strdup(info->description);
498 allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
499 numCaptureDevNames++;
500 }
501 }
502
503 static void sink_name_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata)
504 {
505 ALCdevice *device = pdata;
506 pulse_data *data = device->ExtraData;
507 (void)context;
508
509 if(eol)
510 {
511 pa_threaded_mainloop_signal(data->loop, 0);
512 return;
513 }
514
515 free(device->szDeviceName);
516 device->szDeviceName = strdup(info->description);
517 }
518
519 static void source_name_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata)
520 {
521 ALCdevice *device = pdata;
522 pulse_data *data = device->ExtraData;
523 (void)context;
524
525 if(eol)
526 {
527 pa_threaded_mainloop_signal(data->loop, 0);
528 return;
529 }
530
531 free(device->szDeviceName);
532 device->szDeviceName = strdup(info->description);
533 }
534
535
536 static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
537 {
538 const char *name = "OpenAL Soft";
539 char path_name[PATH_MAX];
540 pa_context_state_t state;
541 pa_context *context;
542 int err;
543
544 if(pa_get_binary_name(path_name, sizeof(path_name)))
545 name = pa_path_get_filename(path_name);
546
547 context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
548 if(!context)
549 {
550 ERR("pa_context_new() failed\n");
551 return NULL;
552 }
553
554 pa_context_set_state_callback(context, context_state_callback, loop);
555
556 if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
557 {
558 while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
559 {
560 if(!PA_CONTEXT_IS_GOOD(state))
561 {
562 err = pa_context_errno(context);
563 if(err > 0) err = -err;
564 break;
565 }
566
567 pa_threaded_mainloop_wait(loop);
568 }
569 }
570 pa_context_set_state_callback(context, NULL, NULL);
571
572 if(err < 0)
573 {
574 if(!silent)
575 ERR("Context did not connect: %s\n", pa_strerror(err));
576 pa_context_unref(context);
577 return NULL;
578 }
579
580 return context;
581 }
582
583 static pa_stream *connect_playback_stream(const char *device_name,
584 pa_threaded_mainloop *loop, pa_context *context,
585 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
586 pa_channel_map *chanmap)
587 {
588 pa_stream_state_t state;
589 pa_stream *stream;
590
591 stream = pa_stream_new(context, "Playback Stream", spec, chanmap);
592 if(!stream)
593 {
594 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
595 return NULL;
596 }
597
598 pa_stream_set_state_callback(stream, stream_state_callback, loop);
599
600 if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
601 {
602 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
603 pa_stream_unref(stream);
604 return NULL;
605 }
606
607 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
608 {
609 if(!PA_STREAM_IS_GOOD(state))
610 {
611 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
612 pa_stream_unref(stream);
613 return NULL;
614 }
615
616 pa_threaded_mainloop_wait(loop);
617 }
618 pa_stream_set_state_callback(stream, NULL, NULL);
619
620 return stream;
621 }
622
623 static pa_stream *connect_record_stream(const char *device_name,
624 pa_threaded_mainloop *loop, pa_context *context,
625 pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
626 pa_channel_map *chanmap)
627 {
628 pa_stream_state_t state;
629 pa_stream *stream;
630
631 stream = pa_stream_new(context, "Capture Stream", spec, chanmap);
632 if(!stream)
633 {
634 ERR("pa_stream_new() failed: %s\n", pa_strerror(pa_context_errno(context)));
635 return NULL;
636 }
637
638 pa_stream_set_state_callback(stream, stream_state_callback, loop);
639
640 if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
641 {
642 ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
643 pa_stream_unref(stream);
644 return NULL;
645 }
646
647 while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
648 {
649 if(!PA_STREAM_IS_GOOD(state))
650 {
651 ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
652 pa_stream_unref(stream);
653 return NULL;
654 }
655
656 pa_threaded_mainloop_wait(loop);
657 }
658 pa_stream_set_state_callback(stream, NULL, NULL);
659
660 return stream;
661 }
662
663
664 static void probe_devices(ALboolean capture)
665 {
666 pa_threaded_mainloop *loop;
667
668 if(capture == AL_FALSE)
669 allDevNameMap = malloc(sizeof(DevMap) * 1);
670 else
671 allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
672
673 if((loop=pa_threaded_mainloop_new()) &&
674 pa_threaded_mainloop_start(loop) >= 0)
675 {
676 pa_context *context;
677
678 pa_threaded_mainloop_lock(loop);
679 context = connect_context(loop, AL_FALSE);
680 if(context)
681 {
682 pa_operation *o;
683
684 if(capture == AL_FALSE)
685 {
686 pa_stream_flags_t flags;
687 pa_sample_spec spec;
688 pa_stream *stream;
689
690 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
691 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
692
693 spec.format = PA_SAMPLE_S16NE;
694 spec.rate = 44100;
695 spec.channels = 2;
696
697 stream = connect_playback_stream(NULL, loop, context, flags,
698 NULL, &spec, NULL);
699 if(stream)
700 {
701 o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
702 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
703 pa_threaded_mainloop_wait(loop);
704 pa_operation_unref(o);
705
706 pa_stream_disconnect(stream);
707 pa_stream_unref(stream);
708 stream = NULL;
709 }
710
711 o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
712 }
713 else
714 {
715 pa_stream_flags_t flags;
716 pa_sample_spec spec;
717 pa_stream *stream;
718
719 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
720 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
721
722 spec.format = PA_SAMPLE_S16NE;
723 spec.rate = 44100;
724 spec.channels = 1;
725
726 stream = connect_record_stream(NULL, loop, context, flags,
727 NULL, &spec, NULL);
728 if(stream)
729 {
730 o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
731 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
732 pa_threaded_mainloop_wait(loop);
733 pa_operation_unref(o);
734
735 pa_stream_disconnect(stream);
736 pa_stream_unref(stream);
737 stream = NULL;
738 }
739
740 o = pa_context_get_source_info_list(context, source_device_callback, loop);
741 }
742 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
743 pa_threaded_mainloop_wait(loop);
744 pa_operation_unref(o);
745
746 pa_context_disconnect(context);
747 pa_context_unref(context);
748 }
749 pa_threaded_mainloop_unlock(loop);
750 pa_threaded_mainloop_stop(loop);
751 }
752 if(loop)
753 pa_threaded_mainloop_free(loop);
754 }
755
756
757 static ALuint PulseProc(ALvoid *param)
758 {
759 ALCdevice *Device = param;
760 pulse_data *data = Device->ExtraData;
761 ALuint buffer_size;
762 ALint update_size;
763 size_t frame_size;
764 ssize_t len;
765
766 SetRTPriority();
767
768 pa_threaded_mainloop_lock(data->loop);
769 frame_size = pa_frame_size(&data->spec);
770 update_size = Device->UpdateSize * frame_size;
771 buffer_size = update_size * Device->NumUpdates;
772 do {
773 len = pa_stream_writable_size(data->stream) - data->attr.tlength +
774 buffer_size;
775 if(len < update_size)
776 {
777 pa_threaded_mainloop_unlock(data->loop);
778 Sleep(1);
779 pa_threaded_mainloop_lock(data->loop);
780 continue;
781 }
782 len -= len%update_size;
783
784 while(len > 0)
785 {
786 size_t newlen = len;
787 void *buf;
788 pa_free_cb_t free_func = NULL;
789
790 #if PA_CHECK_VERSION(0,9,16)
791 if(!pa_stream_begin_write ||
792 pa_stream_begin_write(data->stream, &buf, &newlen) < 0)
793 #endif
794 {
795 buf = pa_xmalloc(newlen);
796 free_func = pa_xfree;
797 }
798 pa_threaded_mainloop_unlock(data->loop);
799
800 aluMixData(Device, buf, newlen/frame_size);
801
802 pa_threaded_mainloop_lock(data->loop);
803 pa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
804 len -= newlen;
805 }
806 } while(!data->killNow && Device->Connected);
807 pa_threaded_mainloop_unlock(data->loop);
808
809 return 0;
810 }
811
812
813 static ALCboolean pulse_open(ALCdevice *device)
814 {
815 pulse_data *data = pa_xmalloc(sizeof(pulse_data));
816 memset(data, 0, sizeof(*data));
817
818 if(!(data->loop = pa_threaded_mainloop_new()))
819 {
820 ERR("pa_threaded_mainloop_new() failed!\n");
821 goto out;
822 }
823 if(pa_threaded_mainloop_start(data->loop) < 0)
824 {
825 ERR("pa_threaded_mainloop_start() failed\n");
826 goto out;
827 }
828
829 pa_threaded_mainloop_lock(data->loop);
830 device->ExtraData = data;
831
832 data->context = connect_context(data->loop, AL_FALSE);
833 if(!data->context)
834 {
835 pa_threaded_mainloop_unlock(data->loop);
836 goto out;
837 }
838 pa_context_set_state_callback(data->context, context_state_callback2, device);
839
840 pa_threaded_mainloop_unlock(data->loop);
841 return ALC_TRUE;
842
843 out:
844 if(data->loop)
845 {
846 pa_threaded_mainloop_stop(data->loop);
847 pa_threaded_mainloop_free(data->loop);
848 }
849
850 device->ExtraData = NULL;
851 pa_xfree(data);
852 return ALC_FALSE;
853 }
854
855 static void pulse_close(ALCdevice *device)
856 {
857 pulse_data *data = device->ExtraData;
858
859 pa_threaded_mainloop_lock(data->loop);
860
861 if(data->stream)
862 {
863 pa_stream_disconnect(data->stream);
864 pa_stream_unref(data->stream);
865 }
866
867 pa_context_disconnect(data->context);
868 pa_context_unref(data->context);
869
870 pa_threaded_mainloop_unlock(data->loop);
871
872 pa_threaded_mainloop_stop(data->loop);
873 pa_threaded_mainloop_free(data->loop);
874
875 free(data->device_name);
876
877 device->ExtraData = NULL;
878 pa_xfree(data);
879 }
880
881 /* OpenAL */
882 static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name)
883 {
884 const char *pulse_name = NULL;
885 pa_stream_flags_t flags;
886 pa_sample_spec spec;
887 pulse_data *data;
888 pa_operation *o;
889
890 if(device_name)
891 {
892 ALuint i;
893
894 if(!allDevNameMap)
895 probe_devices(AL_FALSE);
896
897 for(i = 0;i < numDevNames;i++)
898 {
899 if(strcmp(device_name, allDevNameMap[i].name) == 0)
900 {
901 pulse_name = allDevNameMap[i].device_name;
902 break;
903 }
904 }
905 if(i == numDevNames)
906 return ALC_INVALID_VALUE;
907 }
908
909 if(pulse_open(device) == ALC_FALSE)
910 return ALC_INVALID_VALUE;
911
912 data = device->ExtraData;
913 pa_threaded_mainloop_lock(data->loop);
914
915 flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
916 PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
917
918 spec.format = PA_SAMPLE_S16NE;
919 spec.rate = 44100;
920 spec.channels = 2;
921
922 data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
923 flags, NULL, &spec, NULL);
924 if(!data->stream)
925 {
926 pa_threaded_mainloop_unlock(data->loop);
927 pulse_close(device);
928 return ALC_INVALID_VALUE;
929 }
930
931 data->device_name = strdup(pa_stream_get_device_name(data->stream));
932 o = pa_context_get_sink_info_by_name(data->context, data->device_name,
933 sink_name_callback, device);
934 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
935 pa_threaded_mainloop_wait(data->loop);
936 pa_operation_unref(o);
937
938 pa_threaded_mainloop_unlock(data->loop);
939
940 return ALC_NO_ERROR;
941 }
942
943 static void pulse_close_playback(ALCdevice *device)
944 {
945 pulse_close(device);
946 }
947
948 static ALCboolean pulse_reset_playback(ALCdevice *device)
949 {
950 pulse_data *data = device->ExtraData;
951 pa_stream_flags_t flags = 0;
952 pa_channel_map chanmap;
953
954 pa_threaded_mainloop_lock(data->loop);
955
956 if(data->stream)
957 {
958 pa_stream_disconnect(data->stream);
959 pa_stream_unref(data->stream);
960 data->stream = NULL;
961 }
962
963 if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
964 {
965 pa_operation *o;
966 o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
967 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
968 pa_threaded_mainloop_wait(data->loop);
969 pa_operation_unref(o);
970 }
971 if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
972 flags |= PA_STREAM_FIX_RATE;
973
974 flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
975 flags |= PA_STREAM_DONT_MOVE;
976
977 switch(device->FmtType)
978 {
979 case DevFmtByte:
980 device->FmtType = DevFmtUByte;
981 /* fall-through */
982 case DevFmtUByte:
983 data->spec.format = PA_SAMPLE_U8;
984 break;
985 case DevFmtUShort:
986 device->FmtType = DevFmtShort;
987 /* fall-through */
988 case DevFmtShort:
989 data->spec.format = PA_SAMPLE_S16NE;
990 break;
991 case DevFmtUInt:
992 device->FmtType = DevFmtInt;
993 /* fall-through */
994 case DevFmtInt:
995 data->spec.format = PA_SAMPLE_S32NE;
996 break;
997 case DevFmtFloat:
998 data->spec.format = PA_SAMPLE_FLOAT32NE;
999 break;
1000 }
1001 data->spec.rate = device->Frequency;
1002 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1003
1004 if(pa_sample_spec_valid(&data->spec) == 0)
1005 {
1006 ERR("Invalid sample format\n");
1007 pa_threaded_mainloop_unlock(data->loop);
1008 return ALC_FALSE;
1009 }
1010
1011 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1012 {
1013 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1014 pa_threaded_mainloop_unlock(data->loop);
1015 return ALC_FALSE;
1016 }
1017 SetDefaultWFXChannelOrder(device);
1018
1019 data->attr.fragsize = -1;
1020 data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
1021 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1022 data->attr.prebuf = data->attr.tlength;
1023 data->attr.maxlength = -1;
1024
1025 data->stream = connect_playback_stream(data->device_name, data->loop,
1026 data->context, flags, &data->attr,
1027 &data->spec, &chanmap);
1028 if(!data->stream)
1029 {
1030 pa_threaded_mainloop_unlock(data->loop);
1031 return ALC_FALSE;
1032 }
1033 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1034
1035 data->spec = *(pa_stream_get_sample_spec(data->stream));
1036 if(device->Frequency != data->spec.rate)
1037 {
1038 pa_operation *o;
1039
1040 /* Server updated our playback rate, so modify the buffer attribs
1041 * accordingly. */
1042 data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
1043 device->Frequency * pa_frame_size(&data->spec);
1044 data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
1045 data->attr.prebuf = data->attr.tlength;
1046
1047 o = pa_stream_set_buffer_attr(data->stream, &data->attr,
1048 stream_success_callback, device);
1049 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1050 pa_threaded_mainloop_wait(data->loop);
1051 pa_operation_unref(o);
1052
1053 device->Frequency = data->spec.rate;
1054 }
1055
1056 #if PA_CHECK_VERSION(0,9,15)
1057 if(pa_stream_set_buffer_attr_callback)
1058 pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
1059 #endif
1060 stream_buffer_attr_callback(data->stream, device);
1061
1062 data->thread = StartThread(PulseProc, device);
1063 if(!data->thread)
1064 {
1065 #if PA_CHECK_VERSION(0,9,15)
1066 if(pa_stream_set_buffer_attr_callback)
1067 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1068 #endif
1069 pa_stream_disconnect(data->stream);
1070 pa_stream_unref(data->stream);
1071 data->stream = NULL;
1072
1073 pa_threaded_mainloop_unlock(data->loop);
1074 return ALC_FALSE;
1075 }
1076
1077 pa_threaded_mainloop_unlock(data->loop);
1078 return ALC_TRUE;
1079 }
1080
1081 static void pulse_stop_playback(ALCdevice *device)
1082 {
1083 pulse_data *data = device->ExtraData;
1084
1085 if(!data->stream)
1086 return;
1087
1088 data->killNow = AL_TRUE;
1089 if(data->thread)
1090 {
1091 pa_threaded_mainloop_signal(data->loop, 0);
1092 StopThread(data->thread);
1093 data->thread = NULL;
1094 }
1095 data->killNow = AL_FALSE;
1096
1097 pa_threaded_mainloop_lock(data->loop);
1098
1099 #if PA_CHECK_VERSION(0,9,15)
1100 if(pa_stream_set_buffer_attr_callback)
1101 pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1102 #endif
1103 pa_stream_set_write_callback(data->stream, NULL, NULL);
1104 pa_stream_set_underflow_callback(data->stream, NULL, NULL);
1105 pa_stream_disconnect(data->stream);
1106 pa_stream_unref(data->stream);
1107 data->stream = NULL;
1108
1109 pa_threaded_mainloop_unlock(data->loop);
1110 }
1111
1112
1113 static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name)
1114 {
1115 const char *pulse_name = NULL;
1116 pa_stream_flags_t flags = 0;
1117 pa_channel_map chanmap;
1118 pulse_data *data;
1119 pa_operation *o;
1120 ALuint samples;
1121
1122 if(device_name)
1123 {
1124 ALuint i;
1125
1126 if(!allCaptureDevNameMap)
1127 probe_devices(AL_TRUE);
1128
1129 for(i = 0;i < numCaptureDevNames;i++)
1130 {
1131 if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1132 {
1133 pulse_name = allCaptureDevNameMap[i].device_name;
1134 break;
1135 }
1136 }
1137 if(i == numCaptureDevNames)
1138 return ALC_INVALID_VALUE;
1139 }
1140
1141 if(pulse_open(device) == ALC_FALSE)
1142 return ALC_INVALID_VALUE;
1143
1144 data = device->ExtraData;
1145 pa_threaded_mainloop_lock(data->loop);
1146
1147 data->spec.rate = device->Frequency;
1148 data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1149
1150 switch(device->FmtType)
1151 {
1152 case DevFmtUByte:
1153 data->spec.format = PA_SAMPLE_U8;
1154 break;
1155 case DevFmtShort:
1156 data->spec.format = PA_SAMPLE_S16NE;
1157 break;
1158 case DevFmtInt:
1159 data->spec.format = PA_SAMPLE_S32NE;
1160 break;
1161 case DevFmtFloat:
1162 data->spec.format = PA_SAMPLE_FLOAT32NE;
1163 break;
1164 case DevFmtByte:
1165 case DevFmtUShort:
1166 case DevFmtUInt:
1167 ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
1168 pa_threaded_mainloop_unlock(data->loop);
1169 goto fail;
1170 }
1171
1172 if(pa_sample_spec_valid(&data->spec) == 0)
1173 {
1174 ERR("Invalid sample format\n");
1175 pa_threaded_mainloop_unlock(data->loop);
1176 goto fail;
1177 }
1178
1179 if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1180 {
1181 ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1182 pa_threaded_mainloop_unlock(data->loop);
1183 goto fail;
1184 }
1185
1186 samples = device->UpdateSize * device->NumUpdates;
1187 samples = maxu(samples, 100 * device->Frequency / 1000);
1188
1189 data->attr.minreq = -1;
1190 data->attr.prebuf = -1;
1191 data->attr.maxlength = samples * pa_frame_size(&data->spec);
1192 data->attr.tlength = -1;
1193 data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
1194 pa_frame_size(&data->spec);
1195
1196 flags |= PA_STREAM_DONT_MOVE;
1197 flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1198 data->stream = connect_record_stream(pulse_name, data->loop, data->context,
1199 flags, &data->attr, &data->spec,
1200 &chanmap);
1201 if(!data->stream)
1202 {
1203 pa_threaded_mainloop_unlock(data->loop);
1204 goto fail;
1205 }
1206 pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1207
1208 data->device_name = strdup(pa_stream_get_device_name(data->stream));
1209 o = pa_context_get_source_info_by_name(data->context, data->device_name,
1210 source_name_callback, device);
1211 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1212 pa_threaded_mainloop_wait(data->loop);
1213 pa_operation_unref(o);
1214
1215 pa_threaded_mainloop_unlock(data->loop);
1216 return ALC_NO_ERROR;
1217
1218 fail:
1219 pulse_close(device);
1220 return ALC_INVALID_VALUE;
1221 }
1222
1223 static void pulse_close_capture(ALCdevice *device)
1224 {
1225 pulse_close(device);
1226 }
1227
1228 static void pulse_start_capture(ALCdevice *device)
1229 {
1230 pulse_data *data = device->ExtraData;
1231 pa_operation *o;
1232
1233 pa_threaded_mainloop_lock(data->loop);
1234 o = pa_stream_cork(data->stream, 0, stream_success_callback, device);
1235 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1236 pa_threaded_mainloop_wait(data->loop);
1237 pa_operation_unref(o);
1238 pa_threaded_mainloop_unlock(data->loop);
1239 }
1240
1241 static void pulse_stop_capture(ALCdevice *device)
1242 {
1243 pulse_data *data = device->ExtraData;
1244 pa_operation *o;
1245
1246 pa_threaded_mainloop_lock(data->loop);
1247 o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
1248 while(pa_operation_get_state(o) == PA_OPERATION_RUNNING)
1249 pa_threaded_mainloop_wait(data->loop);
1250 pa_operation_unref(o);
1251 pa_threaded_mainloop_unlock(data->loop);
1252 }
1253
1254 static ALCenum pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples)
1255 {
1256 pulse_data *data = device->ExtraData;
1257 ALCuint todo = samples * pa_frame_size(&data->spec);
1258
1259 pa_threaded_mainloop_lock(data->loop);
1260 /* Capture is done in fragment-sized chunks, so we loop until we get all
1261 * that's available */
1262 data->last_readable -= todo;
1263 while(todo > 0)
1264 {
1265 size_t rem = todo;
1266
1267 if(data->cap_len == 0)
1268 {
1269 pa_stream_state_t state;
1270
1271 state = pa_stream_get_state(data->stream);
1272 if(!PA_STREAM_IS_GOOD(state))
1273 {
1274 aluHandleDisconnect(device);
1275 break;
1276 }
1277 if(pa_stream_peek(data->stream, &data->cap_store, &data->cap_len) < 0)
1278 {
1279 ERR("pa_stream_peek() failed: %s\n",
1280 pa_strerror(pa_context_errno(data->context)));
1281 aluHandleDisconnect(device);
1282 break;
1283 }
1284 data->cap_remain = data->cap_len;
1285 }
1286 if(rem > data->cap_remain)
1287 rem = data->cap_remain;
1288
1289 memcpy(buffer, data->cap_store, rem);
1290
1291 buffer = (ALbyte*)buffer + rem;
1292 todo -= rem;
1293
1294 data->cap_store = (ALbyte*)data->cap_store + rem;
1295 data->cap_remain -= rem;
1296 if(data->cap_remain == 0)
1297 {
1298 pa_stream_drop(data->stream);
1299 data->cap_len = 0;
1300 }
1301 }
1302 if(todo > 0)
1303 memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
1304 pa_threaded_mainloop_unlock(data->loop);
1305
1306 return ALC_NO_ERROR;
1307 }
1308
1309 static ALCuint pulse_available_samples(ALCdevice *device)
1310 {
1311 pulse_data *data = device->ExtraData;
1312 size_t readable = data->cap_remain;
1313
1314 pa_threaded_mainloop_lock(data->loop);
1315 if(device->Connected)
1316 {
1317 ssize_t got = pa_stream_readable_size(data->stream);
1318 if(got > 0 && (size_t)got > data->cap_len)
1319 readable += got - data->cap_len;
1320 }
1321 pa_threaded_mainloop_unlock(data->loop);
1322
1323 if(data->last_readable < readable)
1324 data->last_readable = readable;
1325 return data->last_readable / pa_frame_size(&data->spec);
1326 }
1327
1328
1329 static const BackendFuncs pulse_funcs = {
1330 pulse_open_playback,
1331 pulse_close_playback,
1332 pulse_reset_playback,
1333 pulse_stop_playback,
1334 pulse_open_capture,
1335 pulse_close_capture,
1336 pulse_start_capture,
1337 pulse_stop_capture,
1338 pulse_capture_samples,
1339 pulse_available_samples
1340 };
1341
1342 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1343 {
1344 ALCboolean ret = ALC_FALSE;
1345
1346 if(pulse_load())
1347 {
1348 pa_threaded_mainloop *loop;
1349
1350 pulse_ctx_flags = 0;
1351 if(!GetConfigValueBool("pulse", "spawn-server", 0))
1352 pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1353
1354 if((loop=pa_threaded_mainloop_new()) &&
1355 pa_threaded_mainloop_start(loop) >= 0)
1356 {
1357 pa_context *context;
1358
1359 pa_threaded_mainloop_lock(loop);
1360 context = connect_context(loop, AL_TRUE);
1361 if(context)
1362 {
1363 *func_list = pulse_funcs;
1364 ret = ALC_TRUE;
1365
1366 pa_context_disconnect(context);
1367 pa_context_unref(context);
1368 }
1369 pa_threaded_mainloop_unlock(loop);
1370 pa_threaded_mainloop_stop(loop);
1371 }
1372 if(loop)
1373 pa_threaded_mainloop_free(loop);
1374 }
1375
1376 return ret;
1377 }
1378
1379 void alc_pulse_deinit(void)
1380 {
1381 ALuint i;
1382
1383 for(i = 0;i < numDevNames;++i)
1384 {
1385 free(allDevNameMap[i].name);
1386 free(allDevNameMap[i].device_name);
1387 }
1388 free(allDevNameMap);
1389 allDevNameMap = NULL;
1390 numDevNames = 0;
1391
1392 for(i = 0;i < numCaptureDevNames;++i)
1393 {
1394 free(allCaptureDevNameMap[i].name);
1395 free(allCaptureDevNameMap[i].device_name);
1396 }
1397 free(allCaptureDevNameMap);
1398 allCaptureDevNameMap = NULL;
1399 numCaptureDevNames = 0;
1400
1401 #ifdef HAVE_DYNLOAD
1402 if(pa_handle)
1403 CloseLib(pa_handle);
1404 pa_handle = NULL;
1405 #endif
1406 }
1407
1408 void alc_pulse_probe(enum DevProbe type)
1409 {
1410 ALuint i;
1411
1412 switch(type)
1413 {
1414 case ALL_DEVICE_PROBE:
1415 for(i = 0;i < numDevNames;++i)
1416 {
1417 free(allDevNameMap[i].name);
1418 free(allDevNameMap[i].device_name);
1419 }
1420 free(allDevNameMap);
1421 allDevNameMap = NULL;
1422 numDevNames = 0;
1423
1424 probe_devices(AL_FALSE);
1425
1426 for(i = 0;i < numDevNames;i++)
1427 AppendAllDeviceList(allDevNameMap[i].name);
1428 break;
1429
1430 case CAPTURE_DEVICE_PROBE:
1431 for(i = 0;i < numCaptureDevNames;++i)
1432 {
1433 free(allCaptureDevNameMap[i].name);
1434 free(allCaptureDevNameMap[i].device_name);
1435 }
1436 free(allCaptureDevNameMap);
1437 allCaptureDevNameMap = NULL;
1438 numCaptureDevNames = 0;
1439
1440 probe_devices(AL_TRUE);
1441
1442 for(i = 0;i < numCaptureDevNames;i++)
1443 AppendCaptureDeviceList(allCaptureDevNameMap[i].name);
1444 break;
1445 }
1446 }
1447
1448 #else
1449
1450 #warning "Unsupported API version, backend will be unavailable!"
1451
1452 ALCboolean alc_pulse_init(BackendFuncs *func_list)
1453 { return ALC_FALSE; (void)func_list; }
1454
1455 void alc_pulse_deinit(void)
1456 { }
1457
1458 void alc_pulse_probe(enum DevProbe type)
1459 { (void)type; }
1460
1461 #endif
Software OpenAL implementation