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.
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.
15
* You should have received a copy of the GNU Library General Public
16
* License along with this library; if not, write to the
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* 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
29
#include <pulse/pulseaudio.h>
31
#if PA_API_VERSION == 11
32
#define PA_STREAM_ADJUST_LATENCY 0x2000U
33
#define PA_STREAM_EARLY_REQUESTS 0x4000U
34
static __inline int PA_STREAM_IS_GOOD(pa_stream_state_t x)
36
return (x == PA_STREAM_CREATING || x == PA_STREAM_READY);
38
static __inline int PA_CONTEXT_IS_GOOD(pa_context_state_t x)
40
return (x == PA_CONTEXT_CONNECTING || x == PA_CONTEXT_AUTHORIZING ||
41
x == PA_CONTEXT_SETTING_NAME || x == PA_CONTEXT_READY);
43
#define PA_STREAM_IS_GOOD PA_STREAM_IS_GOOD
44
#define PA_CONTEXT_IS_GOOD PA_CONTEXT_IS_GOOD
45
#elif PA_API_VERSION != 12
46
#error Invalid PulseAudio API version
49
#ifndef PA_CHECK_VERSION
50
#define PA_CHECK_VERSION(major,minor,micro) \
51
((PA_MAJOR > (major)) || \
52
(PA_MAJOR == (major) && PA_MINOR > (minor)) || \
53
(PA_MAJOR == (major) && PA_MINOR == (minor) && PA_MICRO >= (micro)))
56
static void *pa_handle;
57
#define MAKE_FUNC(x) static typeof(x) * p##x
58
MAKE_FUNC(pa_context_unref);
59
MAKE_FUNC(pa_sample_spec_valid);
60
MAKE_FUNC(pa_stream_drop);
61
MAKE_FUNC(pa_strerror);
62
MAKE_FUNC(pa_context_get_state);
63
MAKE_FUNC(pa_stream_get_state);
64
MAKE_FUNC(pa_threaded_mainloop_signal);
65
MAKE_FUNC(pa_stream_peek);
66
MAKE_FUNC(pa_threaded_mainloop_wait);
67
MAKE_FUNC(pa_threaded_mainloop_unlock);
68
MAKE_FUNC(pa_threaded_mainloop_in_thread);
69
MAKE_FUNC(pa_context_new);
70
MAKE_FUNC(pa_threaded_mainloop_stop);
71
MAKE_FUNC(pa_context_disconnect);
72
MAKE_FUNC(pa_threaded_mainloop_start);
73
MAKE_FUNC(pa_threaded_mainloop_get_api);
74
MAKE_FUNC(pa_context_set_state_callback);
75
MAKE_FUNC(pa_stream_write);
77
MAKE_FUNC(pa_stream_connect_record);
78
MAKE_FUNC(pa_stream_connect_playback);
79
MAKE_FUNC(pa_stream_readable_size);
80
MAKE_FUNC(pa_stream_writable_size);
81
MAKE_FUNC(pa_stream_cork);
82
MAKE_FUNC(pa_stream_is_suspended);
83
MAKE_FUNC(pa_stream_get_device_name);
84
MAKE_FUNC(pa_path_get_filename);
85
MAKE_FUNC(pa_get_binary_name);
86
MAKE_FUNC(pa_threaded_mainloop_free);
87
MAKE_FUNC(pa_context_errno);
88
MAKE_FUNC(pa_xmalloc);
89
MAKE_FUNC(pa_stream_unref);
90
MAKE_FUNC(pa_threaded_mainloop_accept);
91
MAKE_FUNC(pa_stream_set_write_callback);
92
MAKE_FUNC(pa_threaded_mainloop_new);
93
MAKE_FUNC(pa_context_connect);
94
MAKE_FUNC(pa_stream_set_buffer_attr);
95
MAKE_FUNC(pa_stream_get_buffer_attr);
96
MAKE_FUNC(pa_stream_get_sample_spec);
97
MAKE_FUNC(pa_stream_get_time);
98
MAKE_FUNC(pa_stream_set_read_callback);
99
MAKE_FUNC(pa_stream_set_state_callback);
100
MAKE_FUNC(pa_stream_set_moved_callback);
101
MAKE_FUNC(pa_stream_set_underflow_callback);
102
MAKE_FUNC(pa_stream_new);
103
MAKE_FUNC(pa_stream_disconnect);
104
MAKE_FUNC(pa_threaded_mainloop_lock);
105
MAKE_FUNC(pa_channel_map_init_auto);
106
MAKE_FUNC(pa_channel_map_parse);
107
MAKE_FUNC(pa_channel_map_snprint);
108
MAKE_FUNC(pa_channel_map_equal);
109
MAKE_FUNC(pa_context_get_server_info);
110
MAKE_FUNC(pa_context_get_sink_info_by_name);
111
MAKE_FUNC(pa_context_get_sink_info_list);
112
MAKE_FUNC(pa_context_get_source_info_list);
113
MAKE_FUNC(pa_operation_get_state);
114
MAKE_FUNC(pa_operation_unref);
115
#if PA_CHECK_VERSION(0,9,15)
116
MAKE_FUNC(pa_channel_map_superset);
117
MAKE_FUNC(pa_stream_set_buffer_attr_callback);
119
#if PA_CHECK_VERSION(0,9,16)
120
MAKE_FUNC(pa_stream_begin_write);
125
#define PATH_MAX 4096
139
pa_threaded_mainloop *loop;
142
volatile ALboolean killNow;
154
static const ALCchar pulse_device[] = "PulseAudio Default";
155
static DevMap *allDevNameMap;
156
static ALuint numDevNames;
157
static DevMap *allCaptureDevNameMap;
158
static ALuint numCaptureDevNames;
159
static pa_context_flags_t pulse_ctx_flags;
162
void *pulse_load(void) //{{{
167
pa_handle = LoadLibrary("libpulse-0.dll");
168
#define LOAD_FUNC(x) do { \
169
p##x = (typeof(p##x))GetProcAddress(pa_handle, #x); \
171
AL_PRINT("Could not load %s from libpulse-0.dll\n", #x); \
172
FreeLibrary(pa_handle); \
177
#define LOAD_OPTIONAL_FUNC(x) do { \
178
p##x = (typeof(p##x))GetProcAddress(pa_handle, #x); \
181
#elif defined (HAVE_DLFCN_H)
184
#if defined(__APPLE__) && defined(__MACH__)
185
pa_handle = dlopen("libpulse.0.dylib", RTLD_NOW);
187
pa_handle = dlopen("libpulse.so.0", RTLD_NOW);
191
#define LOAD_FUNC(x) do { \
192
p##x = dlsym(pa_handle, #x); \
193
if((err=dlerror()) != NULL) { \
194
AL_PRINT("Could not load %s from libpulse: %s\n", #x, err); \
195
dlclose(pa_handle); \
200
#define LOAD_OPTIONAL_FUNC(x) do { \
201
p##x = dlsym(pa_handle, #x); \
202
if((err=dlerror()) != NULL) { \
209
pa_handle = (void*)0xDEADBEEF;
210
#define LOAD_FUNC(x) p##x = (x)
211
#define LOAD_OPTIONAL_FUNC(x) p##x = (x)
217
LOAD_FUNC(pa_context_unref);
218
LOAD_FUNC(pa_sample_spec_valid);
219
LOAD_FUNC(pa_stream_drop);
220
LOAD_FUNC(pa_strerror);
221
LOAD_FUNC(pa_context_get_state);
222
LOAD_FUNC(pa_stream_get_state);
223
LOAD_FUNC(pa_threaded_mainloop_signal);
224
LOAD_FUNC(pa_stream_peek);
225
LOAD_FUNC(pa_threaded_mainloop_wait);
226
LOAD_FUNC(pa_threaded_mainloop_unlock);
227
LOAD_FUNC(pa_threaded_mainloop_in_thread);
228
LOAD_FUNC(pa_context_new);
229
LOAD_FUNC(pa_threaded_mainloop_stop);
230
LOAD_FUNC(pa_context_disconnect);
231
LOAD_FUNC(pa_threaded_mainloop_start);
232
LOAD_FUNC(pa_threaded_mainloop_get_api);
233
LOAD_FUNC(pa_context_set_state_callback);
234
LOAD_FUNC(pa_stream_write);
236
LOAD_FUNC(pa_stream_connect_record);
237
LOAD_FUNC(pa_stream_connect_playback);
238
LOAD_FUNC(pa_stream_readable_size);
239
LOAD_FUNC(pa_stream_writable_size);
240
LOAD_FUNC(pa_stream_cork);
241
LOAD_FUNC(pa_stream_is_suspended);
242
LOAD_FUNC(pa_stream_get_device_name);
243
LOAD_FUNC(pa_path_get_filename);
244
LOAD_FUNC(pa_get_binary_name);
245
LOAD_FUNC(pa_threaded_mainloop_free);
246
LOAD_FUNC(pa_context_errno);
247
LOAD_FUNC(pa_xmalloc);
248
LOAD_FUNC(pa_stream_unref);
249
LOAD_FUNC(pa_threaded_mainloop_accept);
250
LOAD_FUNC(pa_stream_set_write_callback);
251
LOAD_FUNC(pa_threaded_mainloop_new);
252
LOAD_FUNC(pa_context_connect);
253
LOAD_FUNC(pa_stream_set_buffer_attr);
254
LOAD_FUNC(pa_stream_get_buffer_attr);
255
LOAD_FUNC(pa_stream_get_sample_spec);
256
LOAD_FUNC(pa_stream_get_time);
257
LOAD_FUNC(pa_stream_set_read_callback);
258
LOAD_FUNC(pa_stream_set_state_callback);
259
LOAD_FUNC(pa_stream_set_moved_callback);
260
LOAD_FUNC(pa_stream_set_underflow_callback);
261
LOAD_FUNC(pa_stream_new);
262
LOAD_FUNC(pa_stream_disconnect);
263
LOAD_FUNC(pa_threaded_mainloop_lock);
264
LOAD_FUNC(pa_channel_map_init_auto);
265
LOAD_FUNC(pa_channel_map_parse);
266
LOAD_FUNC(pa_channel_map_snprint);
267
LOAD_FUNC(pa_channel_map_equal);
268
LOAD_FUNC(pa_context_get_server_info);
269
LOAD_FUNC(pa_context_get_sink_info_by_name);
270
LOAD_FUNC(pa_context_get_sink_info_list);
271
LOAD_FUNC(pa_context_get_source_info_list);
272
LOAD_FUNC(pa_operation_get_state);
273
LOAD_FUNC(pa_operation_unref);
274
#if PA_CHECK_VERSION(0,9,15)
275
LOAD_OPTIONAL_FUNC(pa_channel_map_superset);
276
LOAD_OPTIONAL_FUNC(pa_stream_set_buffer_attr_callback);
278
#if PA_CHECK_VERSION(0,9,16)
279
LOAD_OPTIONAL_FUNC(pa_stream_begin_write);
282
#undef LOAD_OPTIONAL_FUNC
288
// PulseAudio Event Callbacks //{{{
289
static void context_state_callback(pa_context *context, void *pdata) //{{{
291
pa_threaded_mainloop *loop = pdata;
292
pa_context_state_t state;
294
state = ppa_context_get_state(context);
295
if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
296
ppa_threaded_mainloop_signal(loop, 0);
299
static void stream_state_callback(pa_stream *stream, void *pdata) //{{{
301
pa_threaded_mainloop *loop = pdata;
302
pa_stream_state_t state;
304
state = ppa_stream_get_state(stream);
305
if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
306
ppa_threaded_mainloop_signal(loop, 0);
309
static void stream_signal_callback(pa_stream *stream, void *pdata) //{{{
311
ALCdevice *Device = pdata;
312
pulse_data *data = Device->ExtraData;
315
ppa_threaded_mainloop_signal(data->loop, 0);
318
static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
320
ALCdevice *Device = pdata;
321
pulse_data *data = Device->ExtraData;
323
SuspendContext(NULL);
325
data->attr = *(ppa_stream_get_buffer_attr(stream));
326
Device->UpdateSize = data->attr.minreq / data->frame_size;
327
Device->NumUpdates = (data->attr.tlength/data->frame_size) / Device->UpdateSize;
328
if(Device->NumUpdates <= 1)
330
Device->NumUpdates = 1;
331
AL_PRINT("PulseAudio returned minreq > tlength/2; expect break up\n");
334
ProcessContext(NULL);
337
static void stream_device_callback(pa_stream *stream, void *pdata) //{{{
339
ALCdevice *Device = pdata;
340
pulse_data *data = Device->ExtraData;
342
free(data->device_name);
343
data->device_name = strdup(ppa_stream_get_device_name(stream));
346
static void context_state_callback2(pa_context *context, void *pdata) //{{{
348
ALCdevice *Device = pdata;
349
pulse_data *data = Device->ExtraData;
351
if(ppa_context_get_state(context) == PA_CONTEXT_FAILED)
353
AL_PRINT("Received context failure!\n");
354
aluHandleDisconnect(Device);
356
ppa_threaded_mainloop_signal(data->loop, 0);
359
static void stream_state_callback2(pa_stream *stream, void *pdata) //{{{
361
ALCdevice *Device = pdata;
362
pulse_data *data = Device->ExtraData;
364
if(ppa_stream_get_state(stream) == PA_STREAM_FAILED)
366
AL_PRINT("Received stream failure!\n");
367
aluHandleDisconnect(Device);
369
ppa_threaded_mainloop_signal(data->loop, 0);
372
static void stream_success_callback(pa_stream *stream, int success, void *pdata) //{{{
374
ALCdevice *Device = pdata;
375
pulse_data *data = Device->ExtraData;
379
ppa_threaded_mainloop_signal(data->loop, 0);
382
static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
384
ALCdevice *device = pdata;
385
pulse_data *data = device->ExtraData;
386
char chanmap_str[256] = "";
389
enum DevFmtChannels chans;
391
{ "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right",
393
{ "front-left,front-right,front-center,lfe,rear-center,side-left,side-right",
395
{ "front-left,front-right,front-center,lfe,rear-left,rear-right",
397
{ "front-left,front-right,rear-left,rear-right", DevFmtQuad },
398
{ "front-left,front-right", DevFmtStereo },
399
{ "mono", DevFmtMono },
407
ppa_threaded_mainloop_signal(data->loop, 0);
411
for(i = 0;chanmaps[i].str;i++)
414
if(!ppa_channel_map_parse(&map, chanmaps[i].str))
417
if(ppa_channel_map_equal(&info->channel_map, &map)
418
#if PA_CHECK_VERSION(0,9,15)
419
|| (ppa_channel_map_superset &&
420
ppa_channel_map_superset(&info->channel_map, &map))
424
device->FmtChans = chanmaps[i].chans;
429
ppa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
430
AL_PRINT("Failed to find format for channel map:\n %s\n", chanmap_str);
433
static void sink_device_callback(pa_context *context, const pa_sink_info *info, int eol, void *pdata) //{{{
435
pa_threaded_mainloop *loop = pdata;
445
ppa_threaded_mainloop_signal(loop, 0);
452
snprintf(str, sizeof(str), "%s via PulseAudio", info->description);
454
snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1);
457
for(i = 0;i < numDevNames;i++)
459
if(strcmp(str, allDevNameMap[i].name) == 0)
462
} while(i != numDevNames);
464
temp = realloc(allDevNameMap, (numDevNames+1) * sizeof(*allDevNameMap));
467
allDevNameMap = temp;
468
allDevNameMap[numDevNames].name = strdup(str);
469
allDevNameMap[numDevNames].device_name = strdup(info->name);
474
static void source_device_callback(pa_context *context, const pa_source_info *info, int eol, void *pdata) //{{{
476
pa_threaded_mainloop *loop = pdata;
486
ppa_threaded_mainloop_signal(loop, 0);
493
snprintf(str, sizeof(str), "%s via PulseAudio", info->description);
495
snprintf(str, sizeof(str), "%s #%d via PulseAudio", info->description, count+1);
498
for(i = 0;i < numCaptureDevNames;i++)
500
if(strcmp(str, allCaptureDevNameMap[i].name) == 0)
503
} while(i != numCaptureDevNames);
505
temp = realloc(allCaptureDevNameMap, (numCaptureDevNames+1) * sizeof(*allCaptureDevNameMap));
508
allCaptureDevNameMap = temp;
509
allCaptureDevNameMap[numCaptureDevNames].name = strdup(str);
510
allCaptureDevNameMap[numCaptureDevNames].device_name = strdup(info->name);
511
numCaptureDevNames++;
516
// PulseAudio I/O Callbacks //{{{
517
static void stream_write_callback(pa_stream *stream, size_t len, void *pdata) //{{{
519
ALCdevice *Device = pdata;
520
pulse_data *data = Device->ExtraData;
524
ppa_threaded_mainloop_signal(data->loop, 0);
528
static ALuint PulseProc(ALvoid *param)
530
ALCdevice *Device = param;
531
pulse_data *data = Device->ExtraData;
536
ppa_threaded_mainloop_lock(data->loop);
538
len = (Device->Connected ? ppa_stream_writable_size(data->stream) : 0);
539
len -= len%(Device->UpdateSize*data->frame_size);
542
ppa_threaded_mainloop_wait(data->loop);
550
pa_free_cb_t free_func = NULL;
552
#if PA_CHECK_VERSION(0,9,16)
553
if(!ppa_stream_begin_write ||
554
ppa_stream_begin_write(data->stream, &buf, &newlen) < 0)
557
buf = ppa_xmalloc(newlen);
558
free_func = ppa_xfree;
560
ppa_threaded_mainloop_unlock(data->loop);
562
aluMixData(Device, buf, newlen/data->frame_size);
564
ppa_threaded_mainloop_lock(data->loop);
565
ppa_stream_write(data->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
568
} while(Device->Connected && !data->killNow);
569
ppa_threaded_mainloop_unlock(data->loop);
574
static pa_context *connect_context(pa_threaded_mainloop *loop)
576
const char *name = "OpenAL Soft";
577
char path_name[PATH_MAX];
578
pa_context_state_t state;
582
if(ppa_get_binary_name(path_name, sizeof(path_name)))
583
name = ppa_path_get_filename(path_name);
585
context = ppa_context_new(ppa_threaded_mainloop_get_api(loop), name);
588
AL_PRINT("pa_context_new() failed\n");
592
ppa_context_set_state_callback(context, context_state_callback, loop);
594
if((err=ppa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
596
while((state=ppa_context_get_state(context)) != PA_CONTEXT_READY)
598
if(!PA_CONTEXT_IS_GOOD(state))
600
err = ppa_context_errno(context);
601
if(err > 0) err = -err;
605
ppa_threaded_mainloop_wait(loop);
608
ppa_context_set_state_callback(context, NULL, NULL);
612
AL_PRINT("Context did not connect: %s\n", ppa_strerror(err));
613
ppa_context_unref(context);
620
static pa_stream *connect_playback_stream(ALCdevice *device,
621
pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
622
pa_channel_map *chanmap)
624
pulse_data *data = device->ExtraData;
625
pa_stream_state_t state;
628
stream = ppa_stream_new(data->context, "Playback Stream", spec, chanmap);
631
AL_PRINT("pa_stream_new() failed: %s\n",
632
ppa_strerror(ppa_context_errno(data->context)));
636
ppa_stream_set_state_callback(stream, stream_state_callback, data->loop);
638
if(ppa_stream_connect_playback(stream, data->device_name, attr, flags, NULL, NULL) < 0)
640
AL_PRINT("Stream did not connect: %s\n",
641
ppa_strerror(ppa_context_errno(data->context)));
642
ppa_stream_unref(stream);
646
while((state=ppa_stream_get_state(stream)) != PA_STREAM_READY)
648
if(!PA_STREAM_IS_GOOD(state))
650
AL_PRINT("Stream did not get ready: %s\n",
651
ppa_strerror(ppa_context_errno(data->context)));
652
ppa_stream_unref(stream);
656
ppa_threaded_mainloop_wait(data->loop);
658
ppa_stream_set_state_callback(stream, NULL, NULL);
663
static void probe_devices(ALboolean capture)
665
pa_threaded_mainloop *loop;
667
if(capture == AL_FALSE)
668
allDevNameMap = malloc(sizeof(DevMap) * 1);
670
allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
672
if((loop=ppa_threaded_mainloop_new()) &&
673
ppa_threaded_mainloop_start(loop) >= 0)
677
ppa_threaded_mainloop_lock(loop);
678
context = connect_context(loop);
683
if(capture == AL_FALSE)
685
allDevNameMap[0].name = strdup(pulse_device);
686
allDevNameMap[0].device_name = NULL;
689
o = ppa_context_get_sink_info_list(context, sink_device_callback, loop);
693
allCaptureDevNameMap[0].name = strdup(pulse_device);
694
allCaptureDevNameMap[0].device_name = NULL;
695
numCaptureDevNames = 1;
697
o = ppa_context_get_source_info_list(context, source_device_callback, loop);
699
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
700
ppa_threaded_mainloop_wait(loop);
701
ppa_operation_unref(o);
703
ppa_context_disconnect(context);
704
ppa_context_unref(context);
706
ppa_threaded_mainloop_unlock(loop);
707
ppa_threaded_mainloop_stop(loop);
710
ppa_threaded_mainloop_free(loop);
714
static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
716
pulse_data *data = ppa_xmalloc(sizeof(pulse_data));
717
memset(data, 0, sizeof(*data));
719
if(!(data->loop = ppa_threaded_mainloop_new()))
721
AL_PRINT("pa_threaded_mainloop_new() failed!\n");
724
if(ppa_threaded_mainloop_start(data->loop) < 0)
726
AL_PRINT("pa_threaded_mainloop_start() failed\n");
730
ppa_threaded_mainloop_lock(data->loop);
731
device->ExtraData = data;
733
data->context = connect_context(data->loop);
736
ppa_threaded_mainloop_unlock(data->loop);
739
ppa_context_set_state_callback(data->context, context_state_callback2, device);
741
device->szDeviceName = strdup(device_name);
743
ppa_threaded_mainloop_unlock(data->loop);
749
ppa_threaded_mainloop_stop(data->loop);
750
ppa_threaded_mainloop_free(data->loop);
753
device->ExtraData = NULL;
758
static void pulse_close(ALCdevice *device) //{{{
760
pulse_data *data = device->ExtraData;
762
ppa_threaded_mainloop_lock(data->loop);
766
ppa_stream_disconnect(data->stream);
767
ppa_stream_unref(data->stream);
770
ppa_context_disconnect(data->context);
771
ppa_context_unref(data->context);
773
ppa_threaded_mainloop_unlock(data->loop);
775
ppa_threaded_mainloop_stop(data->loop);
776
ppa_threaded_mainloop_free(data->loop);
778
DestroyRingBuffer(data->ring);
779
free(data->device_name);
781
device->ExtraData = NULL;
787
static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
789
char *pulse_name = NULL;
797
probe_devices(AL_FALSE);
799
if(!device_name && numDevNames > 0)
800
device_name = allDevNameMap[0].name;
805
for(i = 0;i < numDevNames;i++)
807
if(strcmp(device_name, allDevNameMap[i].name) == 0)
809
pulse_name = allDevNameMap[i].device_name;
817
if(pulse_open(device, device_name) == ALC_FALSE)
820
data = device->ExtraData;
822
ppa_threaded_mainloop_lock(data->loop);
824
spec.format = PA_SAMPLE_S16NE;
828
data->device_name = pulse_name;
829
pa_stream *stream = connect_playback_stream(device, 0, NULL, &spec, NULL);
832
ppa_threaded_mainloop_unlock(data->loop);
836
if(ppa_stream_is_suspended(stream))
838
AL_PRINT("Device is suspended\n");
839
ppa_stream_disconnect(stream);
840
ppa_stream_unref(stream);
841
ppa_threaded_mainloop_unlock(data->loop);
844
data->device_name = strdup(ppa_stream_get_device_name(stream));
846
ppa_stream_disconnect(stream);
847
ppa_stream_unref(stream);
849
ppa_threaded_mainloop_unlock(data->loop);
858
static void pulse_close_playback(ALCdevice *device) //{{{
863
static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
865
pulse_data *data = device->ExtraData;
866
pa_stream_flags_t flags = 0;
867
pa_channel_map chanmap;
869
ppa_threaded_mainloop_lock(data->loop);
871
if(!ConfigValueExists(NULL, "format"))
874
o = ppa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
875
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
876
ppa_threaded_mainloop_wait(data->loop);
877
ppa_operation_unref(o);
879
if(!ConfigValueExists(NULL, "frequency"))
880
flags |= PA_STREAM_FIX_RATE;
882
data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
883
data->attr.prebuf = -1;
884
data->attr.fragsize = -1;
885
data->attr.minreq = device->UpdateSize * data->frame_size;
886
data->attr.tlength = data->attr.minreq * device->NumUpdates;
887
if(data->attr.tlength < data->attr.minreq*2)
888
data->attr.tlength = data->attr.minreq*2;
889
data->attr.maxlength = data->attr.tlength;
890
flags |= PA_STREAM_EARLY_REQUESTS;
891
flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
893
switch(device->FmtType)
896
device->FmtType = DevFmtUByte;
899
data->spec.format = PA_SAMPLE_U8;
902
device->FmtType = DevFmtShort;
905
data->spec.format = PA_SAMPLE_S16NE;
908
data->spec.format = PA_SAMPLE_FLOAT32NE;
911
data->spec.rate = device->Frequency;
912
data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
914
if(ppa_sample_spec_valid(&data->spec) == 0)
916
AL_PRINT("Invalid sample format\n");
917
ppa_threaded_mainloop_unlock(data->loop);
921
if(!ppa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
923
AL_PRINT("Couldn't build map for channel count (%d)!\n", data->spec.channels);
924
ppa_threaded_mainloop_unlock(data->loop);
927
SetDefaultWFXChannelOrder(device);
929
data->stream = connect_playback_stream(device, flags, &data->attr, &data->spec, &chanmap);
932
ppa_threaded_mainloop_unlock(data->loop);
936
ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
938
data->spec = *(ppa_stream_get_sample_spec(data->stream));
939
if(device->Frequency != data->spec.rate)
943
/* Server updated our playback rate, so modify the buffer attribs
945
data->attr.minreq = (ALuint64)(data->attr.minreq/data->frame_size) *
946
data->spec.rate / device->Frequency * data->frame_size;
947
data->attr.tlength = data->attr.minreq * device->NumUpdates;
948
data->attr.maxlength = data->attr.tlength;
950
o = ppa_stream_set_buffer_attr(data->stream, &data->attr,
951
stream_success_callback, device);
952
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
953
ppa_threaded_mainloop_wait(data->loop);
954
ppa_operation_unref(o);
956
device->Frequency = data->spec.rate;
959
stream_buffer_attr_callback(data->stream, device);
960
#if PA_CHECK_VERSION(0,9,15)
961
if(ppa_stream_set_buffer_attr_callback)
962
ppa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
964
ppa_stream_set_moved_callback(data->stream, stream_device_callback, device);
965
ppa_stream_set_write_callback(data->stream, stream_write_callback, device);
966
ppa_stream_set_underflow_callback(data->stream, stream_signal_callback, device);
968
data->thread = StartThread(PulseProc, device);
971
#if PA_CHECK_VERSION(0,9,15)
972
if(ppa_stream_set_buffer_attr_callback)
973
ppa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
975
ppa_stream_set_moved_callback(data->stream, NULL, NULL);
976
ppa_stream_set_write_callback(data->stream, NULL, NULL);
977
ppa_stream_set_underflow_callback(data->stream, NULL, NULL);
978
ppa_stream_disconnect(data->stream);
979
ppa_stream_unref(data->stream);
982
ppa_threaded_mainloop_unlock(data->loop);
986
ppa_threaded_mainloop_unlock(data->loop);
990
static void pulse_stop_playback(ALCdevice *device) //{{{
992
pulse_data *data = device->ExtraData;
997
data->killNow = AL_TRUE;
1000
ppa_threaded_mainloop_signal(data->loop, 0);
1001
StopThread(data->thread);
1002
data->thread = NULL;
1004
data->killNow = AL_FALSE;
1006
ppa_threaded_mainloop_lock(data->loop);
1008
#if PA_CHECK_VERSION(0,9,15)
1009
if(ppa_stream_set_buffer_attr_callback)
1010
ppa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
1012
ppa_stream_set_moved_callback(data->stream, NULL, NULL);
1013
ppa_stream_set_write_callback(data->stream, NULL, NULL);
1014
ppa_stream_set_underflow_callback(data->stream, NULL, NULL);
1015
ppa_stream_disconnect(data->stream);
1016
ppa_stream_unref(data->stream);
1017
data->stream = NULL;
1019
ppa_threaded_mainloop_unlock(data->loop);
1023
static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
1025
char *pulse_name = NULL;
1027
pa_stream_flags_t flags = 0;
1028
pa_stream_state_t state;
1029
pa_channel_map chanmap;
1034
if(!allCaptureDevNameMap)
1035
probe_devices(AL_TRUE);
1037
if(!device_name && numCaptureDevNames > 0)
1038
device_name = allCaptureDevNameMap[0].name;
1043
for(i = 0;i < numCaptureDevNames;i++)
1045
if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
1047
pulse_name = allCaptureDevNameMap[i].device_name;
1051
if(i == numCaptureDevNames)
1055
if(pulse_open(device, device_name) == ALC_FALSE)
1058
data = device->ExtraData;
1059
ppa_threaded_mainloop_lock(data->loop);
1061
data->samples = device->UpdateSize * device->NumUpdates;
1062
data->frame_size = FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
1063
if(data->samples < 100 * device->Frequency / 1000)
1064
data->samples = 100 * device->Frequency / 1000;
1066
if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
1068
ppa_threaded_mainloop_unlock(data->loop);
1072
data->attr.minreq = -1;
1073
data->attr.prebuf = -1;
1074
data->attr.maxlength = data->samples * data->frame_size;
1075
data->attr.tlength = -1;
1076
data->attr.fragsize = min(data->samples, 50 * device->Frequency / 1000) *
1079
data->spec.rate = device->Frequency;
1080
data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
1082
switch(device->FmtType)
1085
data->spec.format = PA_SAMPLE_U8;
1088
data->spec.format = PA_SAMPLE_S16NE;
1091
data->spec.format = PA_SAMPLE_FLOAT32NE;
1095
AL_PRINT("Capture format type %#x capture not supported on PulseAudio\n", device->FmtType);
1096
ppa_threaded_mainloop_unlock(data->loop);
1100
if(ppa_sample_spec_valid(&data->spec) == 0)
1102
AL_PRINT("Invalid sample format\n");
1103
ppa_threaded_mainloop_unlock(data->loop);
1107
if(!ppa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
1109
AL_PRINT("Couldn't build map for channel count (%d)!\n", data->spec.channels);
1110
ppa_threaded_mainloop_unlock(data->loop);
1114
data->stream = ppa_stream_new(data->context, "Capture Stream", &data->spec, &chanmap);
1117
AL_PRINT("pa_stream_new() failed: %s\n",
1118
ppa_strerror(ppa_context_errno(data->context)));
1120
ppa_threaded_mainloop_unlock(data->loop);
1124
ppa_stream_set_state_callback(data->stream, stream_state_callback, data->loop);
1126
flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
1127
if(ppa_stream_connect_record(data->stream, pulse_name, &data->attr, flags) < 0)
1129
AL_PRINT("Stream did not connect: %s\n",
1130
ppa_strerror(ppa_context_errno(data->context)));
1132
ppa_stream_unref(data->stream);
1133
data->stream = NULL;
1135
ppa_threaded_mainloop_unlock(data->loop);
1139
while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
1141
if(!PA_STREAM_IS_GOOD(state))
1143
AL_PRINT("Stream did not get ready: %s\n",
1144
ppa_strerror(ppa_context_errno(data->context)));
1146
ppa_stream_unref(data->stream);
1147
data->stream = NULL;
1149
ppa_threaded_mainloop_unlock(data->loop);
1153
ppa_threaded_mainloop_wait(data->loop);
1155
ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
1157
ppa_threaded_mainloop_unlock(data->loop);
1161
pulse_close(device);
1165
static void pulse_close_capture(ALCdevice *device) //{{{
1167
pulse_close(device);
1170
static void pulse_start_capture(ALCdevice *device) //{{{
1172
pulse_data *data = device->ExtraData;
1175
ppa_threaded_mainloop_lock(data->loop);
1176
o = ppa_stream_cork(data->stream, 0, stream_success_callback, device);
1177
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
1178
ppa_threaded_mainloop_wait(data->loop);
1179
ppa_operation_unref(o);
1180
ppa_threaded_mainloop_unlock(data->loop);
1183
static void pulse_stop_capture(ALCdevice *device) //{{{
1185
pulse_data *data = device->ExtraData;
1188
ppa_threaded_mainloop_lock(data->loop);
1189
o = ppa_stream_cork(data->stream, 1, stream_success_callback, device);
1190
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
1191
ppa_threaded_mainloop_wait(data->loop);
1192
ppa_operation_unref(o);
1193
ppa_threaded_mainloop_unlock(data->loop);
1196
static ALCuint pulse_available_samples(ALCdevice *device) //{{{
1198
pulse_data *data = device->ExtraData;
1201
ppa_threaded_mainloop_lock(data->loop);
1202
/* Capture is done in fragment-sized chunks, so we loop until we get all
1203
* that's available */
1204
samples = (device->Connected ? ppa_stream_readable_size(data->stream) : 0);
1210
if(ppa_stream_peek(data->stream, &buf, &length) < 0)
1212
AL_PRINT("pa_stream_peek() failed: %s\n",
1213
ppa_strerror(ppa_context_errno(data->context)));
1217
WriteRingBuffer(data->ring, buf, length/data->frame_size);
1220
ppa_stream_drop(data->stream);
1222
ppa_threaded_mainloop_unlock(data->loop);
1224
return RingBufferSize(data->ring);
1227
static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
1229
pulse_data *data = device->ExtraData;
1231
if(pulse_available_samples(device) >= samples)
1232
ReadRingBuffer(data->ring, buffer, samples);
1234
alcSetError(device, ALC_INVALID_VALUE);
1238
BackendFuncs pulse_funcs = { //{{{
1239
pulse_open_playback,
1240
pulse_close_playback,
1241
pulse_reset_playback,
1242
pulse_stop_playback,
1244
pulse_close_capture,
1245
pulse_start_capture,
1247
pulse_capture_samples,
1248
pulse_available_samples
1251
void alc_pulse_init(BackendFuncs *func_list) //{{{
1253
*func_list = pulse_funcs;
1255
pulse_ctx_flags = 0;
1256
if(!GetConfigValueBool("pulse", "spawn-server", 0))
1257
pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
1260
void alc_pulse_deinit(void) //{{{
1264
for(i = 0;i < numDevNames;++i)
1266
free(allDevNameMap[i].name);
1267
free(allDevNameMap[i].device_name);
1269
free(allDevNameMap);
1270
allDevNameMap = NULL;
1273
for(i = 0;i < numCaptureDevNames;++i)
1275
free(allCaptureDevNameMap[i].name);
1276
free(allCaptureDevNameMap[i].device_name);
1278
free(allCaptureDevNameMap);
1279
allCaptureDevNameMap = NULL;
1280
numCaptureDevNames = 0;
1285
FreeLibrary(pa_handle);
1286
#elif defined (HAVE_DLFCN_H)
1293
void alc_pulse_probe(int type) //{{{
1295
if(!pulse_load()) return;
1297
if(type == DEVICE_PROBE)
1299
pa_threaded_mainloop *loop;
1301
if((loop=ppa_threaded_mainloop_new()) &&
1302
ppa_threaded_mainloop_start(loop) >= 0)
1304
pa_context *context;
1306
ppa_threaded_mainloop_lock(loop);
1307
context = connect_context(loop);
1310
AppendDeviceList(pulse_device);
1312
ppa_context_disconnect(context);
1313
ppa_context_unref(context);
1315
ppa_threaded_mainloop_unlock(loop);
1316
ppa_threaded_mainloop_stop(loop);
1319
ppa_threaded_mainloop_free(loop);
1321
else if(type == ALL_DEVICE_PROBE)
1325
for(i = 0;i < numDevNames;++i)
1327
free(allDevNameMap[i].name);
1328
free(allDevNameMap[i].device_name);
1330
free(allDevNameMap);
1331
allDevNameMap = NULL;
1334
probe_devices(AL_FALSE);
1336
for(i = 0;i < numDevNames;i++)
1337
AppendAllDeviceList(allDevNameMap[i].name);
1339
else if(type == CAPTURE_DEVICE_PROBE)
1343
for(i = 0;i < numCaptureDevNames;++i)
1345
free(allCaptureDevNameMap[i].name);
1346
free(allCaptureDevNameMap[i].device_name);
1348
free(allCaptureDevNameMap);
1349
allCaptureDevNameMap = NULL;
1350
numCaptureDevNames = 0;
1352
probe_devices(AL_TRUE);
1354
for(i = 0;i < numCaptureDevNames;i++)
1355
AppendCaptureDeviceList(allCaptureDevNameMap[i].name);