2 * QEMU Audio subsystem header
4 * Copyright (c) 2005 Vassili Karpov (malc)
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #define NAME "playback"
27 #define HWBUF hw->mix_buf
32 #define NAME "capture"
36 #define HWBUF hw->conv_buf
39 static void glue(audio_init_nb_voices_
, TYPE
)(AudioState
*s
,
40 struct audio_driver
*drv
)
42 int max_voices
= glue (drv
->max_voices_
, TYPE
);
43 int voice_size
= glue (drv
->voice_size_
, TYPE
);
45 if (glue (s
->nb_hw_voices_
, TYPE
) > max_voices
) {
48 dolog ("Driver `%s' does not support " NAME
"\n", drv
->name
);
51 dolog ("Driver `%s' does not support %d " NAME
" voices, max %d\n",
53 glue (s
->nb_hw_voices_
, TYPE
),
56 glue (s
->nb_hw_voices_
, TYPE
) = max_voices
;
59 if (audio_bug(__func__
, !voice_size
&& max_voices
)) {
60 dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
61 drv
->name
, max_voices
);
62 glue (s
->nb_hw_voices_
, TYPE
) = 0;
65 if (audio_bug(__func__
, voice_size
&& !max_voices
)) {
66 dolog ("drv=`%s' voice_size=%d max_voices=0\n",
67 drv
->name
, voice_size
);
71 static void glue (audio_pcm_hw_free_resources_
, TYPE
) (HW
*hw
)
78 static void glue(audio_pcm_hw_alloc_resources_
, TYPE
)(HW
*hw
)
80 if (glue(audio_get_pdo_
, TYPE
)(hw
->s
->dev
)->mixing_engine
) {
81 size_t samples
= hw
->samples
;
82 if (audio_bug(__func__
, samples
== 0)) {
83 dolog("Attempted to allocate empty buffer\n");
86 HWBUF
= g_malloc0(sizeof(STSampleBuffer
) + sizeof(st_sample
) * samples
);
87 HWBUF
->size
= samples
;
93 static void glue (audio_pcm_sw_free_resources_
, TYPE
) (SW
*sw
)
98 st_rate_stop (sw
->rate
);
105 static int glue (audio_pcm_sw_alloc_resources_
, TYPE
) (SW
*sw
)
109 if (!glue(audio_get_pdo_
, TYPE
)(sw
->s
->dev
)->mixing_engine
) {
114 samples
= ((int64_t) sw
->HWBUF
->size
<< 32) / sw
->ratio
;
116 samples
= (int64_t)sw
->HWBUF
->size
* sw
->ratio
>> 32;
119 sw
->buf
= audio_calloc(__func__
, samples
, sizeof(struct st_sample
));
121 dolog ("Could not allocate buffer for `%s' (%d samples)\n",
122 SW_NAME (sw
), samples
);
127 sw
->rate
= st_rate_start (sw
->info
.freq
, sw
->hw
->info
.freq
);
129 sw
->rate
= st_rate_start (sw
->hw
->info
.freq
, sw
->info
.freq
);
139 static int glue (audio_pcm_sw_init_
, TYPE
) (
143 struct audsettings
*as
148 audio_pcm_init_info (&sw
->info
, as
);
152 sw
->ratio
= ((int64_t) sw
->hw
->info
.freq
<< 32) / sw
->info
.freq
;
153 sw
->total_hw_samples_mixed
= 0;
156 sw
->ratio
= ((int64_t) sw
->info
.freq
<< 32) / sw
->hw
->info
.freq
;
159 if (sw
->info
.is_float
) {
161 sw
->conv
= mixeng_conv_float
[sw
->info
.nchannels
== 2];
163 sw
->clip
= mixeng_clip_float
[sw
->info
.nchannels
== 2];
167 sw
->conv
= mixeng_conv
169 sw
->clip
= mixeng_clip
171 [sw
->info
.nchannels
== 2]
173 [sw
->info
.swap_endianness
]
174 [audio_bits_to_index(sw
->info
.bits
)];
177 sw
->name
= g_strdup (name
);
178 err
= glue (audio_pcm_sw_alloc_resources_
, TYPE
) (sw
);
186 static void glue (audio_pcm_sw_fini_
, TYPE
) (SW
*sw
)
188 glue (audio_pcm_sw_free_resources_
, TYPE
) (sw
);
193 static void glue (audio_pcm_hw_add_sw_
, TYPE
) (HW
*hw
, SW
*sw
)
195 QLIST_INSERT_HEAD (&hw
->sw_head
, sw
, entries
);
198 static void glue (audio_pcm_hw_del_sw_
, TYPE
) (SW
*sw
)
200 QLIST_REMOVE (sw
, entries
);
203 static void glue (audio_pcm_hw_gc_
, TYPE
) (HW
**hwp
)
206 AudioState
*s
= hw
->s
;
208 if (!hw
->sw_head
.lh_first
) {
210 audio_detach_capture(hw
);
212 QLIST_REMOVE(hw
, entries
);
213 glue(hw
->pcm_ops
->fini_
, TYPE
) (hw
);
214 glue(s
->nb_hw_voices_
, TYPE
) += 1;
215 glue(audio_pcm_hw_free_resources_
, TYPE
) (hw
);
221 static HW
*glue(audio_pcm_hw_find_any_
, TYPE
)(AudioState
*s
, HW
*hw
)
223 return hw
? hw
->entries
.le_next
: glue (s
->hw_head_
, TYPE
).lh_first
;
226 static HW
*glue(audio_pcm_hw_find_any_enabled_
, TYPE
)(AudioState
*s
, HW
*hw
)
228 while ((hw
= glue(audio_pcm_hw_find_any_
, TYPE
)(s
, hw
))) {
236 static HW
*glue(audio_pcm_hw_find_specific_
, TYPE
)(AudioState
*s
, HW
*hw
,
237 struct audsettings
*as
)
239 while ((hw
= glue(audio_pcm_hw_find_any_
, TYPE
)(s
, hw
))) {
240 if (audio_pcm_info_eq (&hw
->info
, as
)) {
247 static HW
*glue(audio_pcm_hw_add_new_
, TYPE
)(AudioState
*s
,
248 struct audsettings
*as
)
251 struct audio_driver
*drv
= s
->drv
;
253 if (!glue (s
->nb_hw_voices_
, TYPE
)) {
257 if (audio_bug(__func__
, !drv
)) {
258 dolog ("No host audio driver\n");
262 if (audio_bug(__func__
, !drv
->pcm_ops
)) {
263 dolog ("Host audio driver without pcm_ops\n");
267 hw
= audio_calloc(__func__
, 1, glue(drv
->voice_size_
, TYPE
));
269 dolog ("Can not allocate voice `%s' size %d\n",
270 drv
->name
, glue (drv
->voice_size_
, TYPE
));
275 hw
->pcm_ops
= drv
->pcm_ops
;
277 QLIST_INIT (&hw
->sw_head
);
279 QLIST_INIT (&hw
->cap_head
);
281 if (glue (hw
->pcm_ops
->init_
, TYPE
) (hw
, as
, s
->drv_opaque
)) {
285 if (audio_bug(__func__
, hw
->samples
<= 0)) {
286 dolog("hw->samples=%zd\n", hw
->samples
);
290 if (hw
->info
.is_float
) {
292 hw
->clip
= mixeng_clip_float
[hw
->info
.nchannels
== 2];
294 hw
->conv
= mixeng_conv_float
[hw
->info
.nchannels
== 2];
298 hw
->clip
= mixeng_clip
300 hw
->conv
= mixeng_conv
302 [hw
->info
.nchannels
== 2]
304 [hw
->info
.swap_endianness
]
305 [audio_bits_to_index(hw
->info
.bits
)];
308 glue(audio_pcm_hw_alloc_resources_
, TYPE
)(hw
);
310 QLIST_INSERT_HEAD (&s
->glue (hw_head_
, TYPE
), hw
, entries
);
311 glue (s
->nb_hw_voices_
, TYPE
) -= 1;
313 audio_attach_capture (hw
);
318 glue (hw
->pcm_ops
->fini_
, TYPE
) (hw
);
324 AudiodevPerDirectionOptions
*glue(audio_get_pdo_
, TYPE
)(Audiodev
*dev
)
326 switch (dev
->driver
) {
327 case AUDIODEV_DRIVER_NONE
:
328 return dev
->u
.none
.TYPE
;
329 #ifdef CONFIG_AUDIO_ALSA
330 case AUDIODEV_DRIVER_ALSA
:
331 return qapi_AudiodevAlsaPerDirectionOptions_base(dev
->u
.alsa
.TYPE
);
333 #ifdef CONFIG_AUDIO_COREAUDIO
334 case AUDIODEV_DRIVER_COREAUDIO
:
335 return qapi_AudiodevCoreaudioPerDirectionOptions_base(
336 dev
->u
.coreaudio
.TYPE
);
338 #ifdef CONFIG_DBUS_DISPLAY
339 case AUDIODEV_DRIVER_DBUS
:
340 return dev
->u
.dbus
.TYPE
;
342 #ifdef CONFIG_AUDIO_DSOUND
343 case AUDIODEV_DRIVER_DSOUND
:
344 return dev
->u
.dsound
.TYPE
;
346 #ifdef CONFIG_AUDIO_JACK
347 case AUDIODEV_DRIVER_JACK
:
348 return qapi_AudiodevJackPerDirectionOptions_base(dev
->u
.jack
.TYPE
);
350 #ifdef CONFIG_AUDIO_OSS
351 case AUDIODEV_DRIVER_OSS
:
352 return qapi_AudiodevOssPerDirectionOptions_base(dev
->u
.oss
.TYPE
);
354 #ifdef CONFIG_AUDIO_PA
355 case AUDIODEV_DRIVER_PA
:
356 return qapi_AudiodevPaPerDirectionOptions_base(dev
->u
.pa
.TYPE
);
358 #ifdef CONFIG_AUDIO_SDL
359 case AUDIODEV_DRIVER_SDL
:
360 return qapi_AudiodevSdlPerDirectionOptions_base(dev
->u
.sdl
.TYPE
);
362 #ifdef CONFIG_AUDIO_SNDIO
363 case AUDIODEV_DRIVER_SNDIO
:
364 return dev
->u
.sndio
.TYPE
;
367 case AUDIODEV_DRIVER_SPICE
:
368 return dev
->u
.spice
.TYPE
;
370 case AUDIODEV_DRIVER_WAV
:
371 return dev
->u
.wav
.TYPE
;
373 case AUDIODEV_DRIVER__MAX
:
379 static HW
*glue(audio_pcm_hw_add_
, TYPE
)(AudioState
*s
, struct audsettings
*as
)
382 AudiodevPerDirectionOptions
*pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
384 if (!pdo
->mixing_engine
|| pdo
->fixed_settings
) {
385 hw
= glue(audio_pcm_hw_add_new_
, TYPE
)(s
, as
);
386 if (!pdo
->mixing_engine
|| hw
) {
391 hw
= glue(audio_pcm_hw_find_specific_
, TYPE
)(s
, NULL
, as
);
396 hw
= glue(audio_pcm_hw_add_new_
, TYPE
)(s
, as
);
401 return glue(audio_pcm_hw_find_any_
, TYPE
)(s
, NULL
);
404 static SW
*glue(audio_pcm_create_voice_pair_
, TYPE
)(
407 struct audsettings
*as
412 struct audsettings hw_as
;
413 AudiodevPerDirectionOptions
*pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
415 if (pdo
->fixed_settings
) {
416 hw_as
= audiodev_to_audsettings(pdo
);
421 sw
= audio_calloc(__func__
, 1, sizeof(*sw
));
423 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
424 sw_name
? sw_name
: "unknown", sizeof (*sw
));
429 hw
= glue(audio_pcm_hw_add_
, TYPE
)(s
, &hw_as
);
434 glue (audio_pcm_hw_add_sw_
, TYPE
) (hw
, sw
);
436 if (glue (audio_pcm_sw_init_
, TYPE
) (sw
, hw
, sw_name
, as
)) {
443 glue (audio_pcm_hw_del_sw_
, TYPE
) (sw
);
444 glue (audio_pcm_hw_gc_
, TYPE
) (&hw
);
451 static void glue (audio_close_
, TYPE
) (SW
*sw
)
453 glue (audio_pcm_sw_fini_
, TYPE
) (sw
);
454 glue (audio_pcm_hw_del_sw_
, TYPE
) (sw
);
455 glue (audio_pcm_hw_gc_
, TYPE
) (&sw
->hw
);
459 void glue (AUD_close_
, TYPE
) (QEMUSoundCard
*card
, SW
*sw
)
462 if (audio_bug(__func__
, !card
)) {
463 dolog ("card=%p\n", card
);
467 glue (audio_close_
, TYPE
) (sw
);
471 SW
*glue (AUD_open_
, TYPE
) (
475 void *callback_opaque
,
476 audio_callback_fn callback_fn
,
477 struct audsettings
*as
481 AudiodevPerDirectionOptions
*pdo
;
483 if (audio_bug(__func__
, !card
|| !name
|| !callback_fn
|| !as
)) {
484 dolog ("card=%p name=%p callback_fn=%p as=%p\n",
485 card
, name
, callback_fn
, as
);
490 pdo
= glue(audio_get_pdo_
, TYPE
)(s
->dev
);
492 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
493 name
, as
->freq
, as
->nchannels
, as
->fmt
);
495 if (audio_bug(__func__
, audio_validate_settings(as
))) {
496 audio_print_settings (as
);
500 if (audio_bug(__func__
, !s
->drv
)) {
501 dolog ("Can not open `%s' (no host audio driver)\n", name
);
505 if (sw
&& audio_pcm_info_eq (&sw
->info
, as
)) {
509 if (!pdo
->fixed_settings
&& sw
) {
510 glue (AUD_close_
, TYPE
) (card
, sw
);
518 dolog ("Internal logic error voice `%s' has no hardware store\n",
523 glue (audio_pcm_sw_fini_
, TYPE
) (sw
);
524 if (glue (audio_pcm_sw_init_
, TYPE
) (sw
, hw
, name
, as
)) {
528 sw
= glue(audio_pcm_create_voice_pair_
, TYPE
)(s
, name
, as
);
530 dolog ("Failed to create voice `%s'\n", name
);
536 sw
->vol
= nominal_volume
;
537 sw
->callback
.fn
= callback_fn
;
538 sw
->callback
.opaque
= callback_opaque
;
541 dolog ("%s\n", name
);
542 audio_pcm_print_info ("hw", &sw
->hw
->info
);
543 audio_pcm_print_info ("sw", &sw
->info
);
549 glue (AUD_close_
, TYPE
) (card
, sw
);
553 int glue (AUD_is_active_
, TYPE
) (SW
*sw
)
555 return sw
? sw
->active
: 0;
558 void glue (AUD_init_time_stamp_
, TYPE
) (SW
*sw
, QEMUAudioTimeStamp
*ts
)
564 ts
->old_ts
= sw
->hw
->ts_helper
;
567 uint64_t glue (AUD_get_elapsed_usec_
, TYPE
) (SW
*sw
, QEMUAudioTimeStamp
*ts
)
569 uint64_t delta
, cur_ts
, old_ts
;
575 cur_ts
= sw
->hw
->ts_helper
;
577 /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
579 if (cur_ts
>= old_ts
) {
580 delta
= cur_ts
- old_ts
;
582 delta
= UINT64_MAX
- old_ts
+ cur_ts
;
589 return muldiv64 (delta
, sw
->hw
->info
.freq
, 1000000);