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);
52 dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n",
54 glue (s->nb_hw_voices_, TYPE),
57 glue (s->nb_hw_voices_, TYPE) = max_voices;
60 if (audio_bug(__func__, !voice_size && max_voices)) {
61 dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
62 drv->name, max_voices);
63 glue (s->nb_hw_voices_, TYPE) = 0;
66 if (audio_bug(__func__, voice_size && !max_voices)) {
67 dolog ("drv=`%s' voice_size=%d max_voices=0\n",
68 drv->name, voice_size);
72 static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
78 static bool glue(audio_pcm_hw_alloc_resources_, TYPE)(HW *hw)
80 HWBUF = audio_calloc(__func__, hw->samples, sizeof(struct st_sample));
82 dolog("Could not allocate " NAME " buffer (%zu samples)\n",
90 static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
95 st_rate_stop (sw->rate);
102 static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
106 samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
108 sw->buf = audio_calloc(__func__, samples, sizeof(struct st_sample));
110 dolog ("Could not allocate buffer for `%s' (%d samples)\n",
111 SW_NAME (sw), samples);
116 sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
118 sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
128 static int glue (audio_pcm_sw_init_, TYPE) (
132 struct audsettings *as
137 audio_pcm_init_info (&sw->info, as);
141 sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
142 sw->total_hw_samples_mixed = 0;
145 sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
149 sw->conv = mixeng_conv
151 sw->clip = mixeng_clip
153 [sw->info.nchannels == 2]
155 [sw->info.swap_endianness]
156 [audio_bits_to_index (sw->info.bits)];
158 sw->name = g_strdup (name);
159 err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
167 static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
169 glue (audio_pcm_sw_free_resources_, TYPE) (sw);
174 static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
176 QLIST_INSERT_HEAD (&hw->sw_head, sw, entries);
179 static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
181 QLIST_REMOVE (sw, entries);
184 static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
187 AudioState *s = hw->s;
189 if (!hw->sw_head.lh_first) {
191 audio_detach_capture (hw);
193 QLIST_REMOVE (hw, entries);
194 glue (hw->pcm_ops->fini_, TYPE) (hw);
195 glue (s->nb_hw_voices_, TYPE) += 1;
196 glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
202 static HW *glue(audio_pcm_hw_find_any_, TYPE)(AudioState *s, HW *hw)
204 return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
207 static HW *glue(audio_pcm_hw_find_any_enabled_, TYPE)(AudioState *s, HW *hw)
209 while ((hw = glue(audio_pcm_hw_find_any_, TYPE)(s, hw))) {
217 static HW *glue(audio_pcm_hw_find_specific_, TYPE)(AudioState *s, HW *hw,
218 struct audsettings *as)
220 while ((hw = glue(audio_pcm_hw_find_any_, TYPE)(s, hw))) {
221 if (audio_pcm_info_eq (&hw->info, as)) {
228 static HW *glue(audio_pcm_hw_add_new_, TYPE)(AudioState *s,
229 struct audsettings *as)
232 struct audio_driver *drv = s->drv;
234 if (!glue (s->nb_hw_voices_, TYPE)) {
238 if (audio_bug(__func__, !drv)) {
239 dolog ("No host audio driver\n");
243 if (audio_bug(__func__, !drv->pcm_ops)) {
244 dolog ("Host audio driver without pcm_ops\n");
248 hw = audio_calloc(__func__, 1, glue(drv->voice_size_, TYPE));
250 dolog ("Can not allocate voice `%s' size %d\n",
251 drv->name, glue (drv->voice_size_, TYPE));
256 hw->pcm_ops = drv->pcm_ops;
257 hw->ctl_caps = drv->ctl_caps;
259 QLIST_INIT (&hw->sw_head);
261 QLIST_INIT (&hw->cap_head);
263 if (glue (hw->pcm_ops->init_, TYPE) (hw, as, s->drv_opaque)) {
267 if (audio_bug(__func__, hw->samples <= 0)) {
268 dolog("hw->samples=%zd\n", hw->samples);
273 hw->clip = mixeng_clip
275 hw->conv = mixeng_conv
277 [hw->info.nchannels == 2]
279 [hw->info.swap_endianness]
280 [audio_bits_to_index (hw->info.bits)];
282 if (!glue(audio_pcm_hw_alloc_resources_, TYPE)(hw)) {
286 QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
287 glue (s->nb_hw_voices_, TYPE) -= 1;
289 audio_attach_capture (hw);
294 glue (hw->pcm_ops->fini_, TYPE) (hw);
300 AudiodevPerDirectionOptions *glue(audio_get_pdo_, TYPE)(Audiodev *dev)
302 switch (dev->driver) {
303 case AUDIODEV_DRIVER_NONE:
304 return dev->u.none.TYPE;
305 case AUDIODEV_DRIVER_ALSA:
306 return qapi_AudiodevAlsaPerDirectionOptions_base(dev->u.alsa.TYPE);
307 case AUDIODEV_DRIVER_COREAUDIO:
308 return qapi_AudiodevCoreaudioPerDirectionOptions_base(
309 dev->u.coreaudio.TYPE);
310 case AUDIODEV_DRIVER_DSOUND:
311 return dev->u.dsound.TYPE;
312 case AUDIODEV_DRIVER_OSS:
313 return qapi_AudiodevOssPerDirectionOptions_base(dev->u.oss.TYPE);
314 case AUDIODEV_DRIVER_PA:
315 return qapi_AudiodevPaPerDirectionOptions_base(dev->u.pa.TYPE);
316 case AUDIODEV_DRIVER_SDL:
317 return dev->u.sdl.TYPE;
318 case AUDIODEV_DRIVER_SPICE:
319 return dev->u.spice.TYPE;
320 case AUDIODEV_DRIVER_WAV:
321 return dev->u.wav.TYPE;
323 case AUDIODEV_DRIVER__MAX:
329 static HW *glue(audio_pcm_hw_add_, TYPE)(AudioState *s, struct audsettings *as)
332 AudiodevPerDirectionOptions *pdo = glue(audio_get_pdo_, TYPE)(s->dev);
334 if (pdo->fixed_settings) {
335 hw = glue(audio_pcm_hw_add_new_, TYPE)(s, as);
341 hw = glue(audio_pcm_hw_find_specific_, TYPE)(s, NULL, as);
346 hw = glue(audio_pcm_hw_add_new_, TYPE)(s, as);
351 return glue(audio_pcm_hw_find_any_, TYPE)(s, NULL);
354 static SW *glue(audio_pcm_create_voice_pair_, TYPE)(
357 struct audsettings *as
362 struct audsettings hw_as;
363 AudiodevPerDirectionOptions *pdo = glue(audio_get_pdo_, TYPE)(s->dev);
365 if (pdo->fixed_settings) {
366 hw_as = audiodev_to_audsettings(pdo);
372 sw = audio_calloc(__func__, 1, sizeof(*sw));
374 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
375 sw_name ? sw_name : "unknown", sizeof (*sw));
380 hw = glue(audio_pcm_hw_add_, TYPE)(s, &hw_as);
385 glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
387 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
394 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
395 glue (audio_pcm_hw_gc_, TYPE) (&hw);
402 static void glue (audio_close_, TYPE) (SW *sw)
404 glue (audio_pcm_sw_fini_, TYPE) (sw);
405 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
406 glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
410 void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
413 if (audio_bug(__func__, !card)) {
414 dolog ("card=%p\n", card);
418 glue (audio_close_, TYPE) (sw);
422 SW *glue (AUD_open_, TYPE) (
426 void *callback_opaque ,
427 audio_callback_fn callback_fn,
428 struct audsettings *as
431 AudioState *s = card->state;
432 AudiodevPerDirectionOptions *pdo = glue(audio_get_pdo_, TYPE)(s->dev);
434 if (audio_bug(__func__, !card || !name || !callback_fn || !as)) {
435 dolog ("card=%p name=%p callback_fn=%p as=%p\n",
436 card, name, callback_fn, as);
440 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
441 name, as->freq, as->nchannels, as->fmt);
443 if (audio_bug(__func__, audio_validate_settings(as))) {
444 audio_print_settings (as);
448 if (audio_bug(__func__, !s->drv)) {
449 dolog ("Can not open `%s' (no host audio driver)\n", name);
453 if (sw && audio_pcm_info_eq (&sw->info, as)) {
457 if (!pdo->fixed_settings && sw) {
458 glue (AUD_close_, TYPE) (card, sw);
466 dolog ("Internal logic error voice `%s' has no hardware store\n",
471 glue (audio_pcm_sw_fini_, TYPE) (sw);
472 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
477 sw = glue(audio_pcm_create_voice_pair_, TYPE)(s, name, as);
479 dolog ("Failed to create voice `%s'\n", name);
485 sw->vol = nominal_volume;
486 sw->callback.fn = callback_fn;
487 sw->callback.opaque = callback_opaque;
490 dolog ("%s\n", name);
491 audio_pcm_print_info ("hw", &sw->hw->info);
492 audio_pcm_print_info ("sw", &sw->info);
498 glue (AUD_close_, TYPE) (card, sw);
502 int glue (AUD_is_active_, TYPE) (SW *sw)
504 return sw ? sw->active : 0;
507 void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
513 ts->old_ts = sw->hw->ts_helper;
516 uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
518 uint64_t delta, cur_ts, old_ts;
524 cur_ts = sw->hw->ts_helper;
526 /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
528 if (cur_ts >= old_ts) {
529 delta = cur_ts - old_ts;
532 delta = UINT64_MAX - old_ts + cur_ts;
539 return muldiv64 (delta, sw->hw->info.freq, 1000000);