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) (struct audio_driver *drv)
41 AudioState *s = &glob_audio_state;
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 (AUDIO_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 (AUDIO_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)
81 static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
83 HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (struct st_sample));
85 dolog ("Could not allocate " NAME " buffer (%d samples)\n",
93 static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
100 st_rate_stop (sw->rate);
107 static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
111 samples = ((int64_t) sw->hw->samples << 32) / sw->ratio;
113 sw->buf = audio_calloc (AUDIO_FUNC, samples, sizeof (struct st_sample));
115 dolog ("Could not allocate buffer for `%s' (%d samples)\n",
116 SW_NAME (sw), samples);
121 sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
123 sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
133 static int glue (audio_pcm_sw_init_, TYPE) (
137 struct audsettings *as
142 audio_pcm_init_info (&sw->info, as);
146 sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
147 sw->total_hw_samples_mixed = 0;
150 sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
154 sw->conv = mixeng_conv
156 sw->clip = mixeng_clip
158 [sw->info.nchannels == 2]
160 [sw->info.swap_endianness]
161 [audio_bits_to_index (sw->info.bits)];
163 sw->name = g_strdup (name);
164 err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
172 static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
174 glue (audio_pcm_sw_free_resources_, TYPE) (sw);
181 static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
183 QLIST_INSERT_HEAD (&hw->sw_head, sw, entries);
186 static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
188 QLIST_REMOVE (sw, entries);
191 static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
193 AudioState *s = &glob_audio_state;
196 if (!hw->sw_head.lh_first) {
198 audio_detach_capture (hw);
200 QLIST_REMOVE (hw, entries);
201 glue (s->nb_hw_voices_, TYPE) += 1;
202 glue (audio_pcm_hw_free_resources_ ,TYPE) (hw);
203 glue (hw->pcm_ops->fini_, TYPE) (hw);
209 static HW *glue (audio_pcm_hw_find_any_, TYPE) (HW *hw)
211 AudioState *s = &glob_audio_state;
212 return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
215 static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (HW *hw)
217 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
225 static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
227 struct audsettings *as
230 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
231 if (audio_pcm_info_eq (&hw->info, as)) {
238 static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
241 AudioState *s = &glob_audio_state;
242 struct audio_driver *drv = s->drv;
244 if (!glue (s->nb_hw_voices_, TYPE)) {
248 if (audio_bug (AUDIO_FUNC, !drv)) {
249 dolog ("No host audio driver\n");
253 if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) {
254 dolog ("Host audio driver without pcm_ops\n");
258 hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE));
260 dolog ("Can not allocate voice `%s' size %d\n",
261 drv->name, glue (drv->voice_size_, TYPE));
265 hw->pcm_ops = drv->pcm_ops;
266 hw->ctl_caps = drv->ctl_caps;
268 QLIST_INIT (&hw->sw_head);
270 QLIST_INIT (&hw->cap_head);
272 if (glue (hw->pcm_ops->init_, TYPE) (hw, as)) {
276 if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
277 dolog ("hw->samples=%d\n", hw->samples);
282 hw->clip = mixeng_clip
284 hw->conv = mixeng_conv
286 [hw->info.nchannels == 2]
288 [hw->info.swap_endianness]
289 [audio_bits_to_index (hw->info.bits)];
291 if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
295 QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
296 glue (s->nb_hw_voices_, TYPE) -= 1;
298 audio_attach_capture (hw);
303 glue (hw->pcm_ops->fini_, TYPE) (hw);
309 static HW *glue (audio_pcm_hw_add_, TYPE) (struct audsettings *as)
313 if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
314 hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
320 hw = glue (audio_pcm_hw_find_specific_, TYPE) (NULL, as);
325 hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
330 return glue (audio_pcm_hw_find_any_, TYPE) (NULL);
333 static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
335 struct audsettings *as
340 struct audsettings hw_as;
342 if (glue (conf.fixed_, TYPE).enabled) {
343 hw_as = glue (conf.fixed_, TYPE).settings;
349 sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
351 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
352 sw_name ? sw_name : "unknown", sizeof (*sw));
356 hw = glue (audio_pcm_hw_add_, TYPE) (&hw_as);
361 glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
363 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
370 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
371 glue (audio_pcm_hw_gc_, TYPE) (&hw);
378 static void glue (audio_close_, TYPE) (SW *sw)
380 glue (audio_pcm_sw_fini_, TYPE) (sw);
381 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
382 glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
386 void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
389 if (audio_bug (AUDIO_FUNC, !card)) {
390 dolog ("card=%p\n", card);
394 glue (audio_close_, TYPE) (sw);
398 SW *glue (AUD_open_, TYPE) (
402 void *callback_opaque ,
403 audio_callback_fn callback_fn,
404 struct audsettings *as
407 AudioState *s = &glob_audio_state;
413 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
414 name, as->freq, as->nchannels, as->fmt);
416 if (audio_bug (AUDIO_FUNC, !card || !name || !callback_fn || !as)) {
417 dolog ("card=%p name=%p callback_fn=%p as=%p\n",
418 card, name, callback_fn, as);
422 if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
423 audio_print_settings (as);
427 if (audio_bug (AUDIO_FUNC, !s->drv)) {
428 dolog ("Can not open `%s' (no host audio driver)\n", name);
432 if (sw && audio_pcm_info_eq (&sw->info, as)) {
437 if (conf.plive && sw && (!sw->active && !sw->empty)) {
438 live = sw->total_hw_samples_mixed;
441 dolog ("Replacing voice %s with %d live samples\n", SW_NAME (sw), live);
442 dolog ("Old %s freq %d, bits %d, channels %d\n",
443 SW_NAME (sw), sw->info.freq, sw->info.bits, sw->info.nchannels);
444 dolog ("New %s freq %d, bits %d, channels %d\n",
447 (as->fmt == AUD_FMT_S16 || as->fmt == AUD_FMT_U16) ? 16 : 8,
453 old_sw->callback.fn = NULL;
459 if (!glue (conf.fixed_, TYPE).enabled && sw) {
460 glue (AUD_close_, TYPE) (card, sw);
468 dolog ("Internal logic error voice `%s' has no hardware store\n",
473 glue (audio_pcm_sw_fini_, TYPE) (sw);
474 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
479 sw = glue (audio_pcm_create_voice_pair_, TYPE) (name, as);
481 dolog ("Failed to create voice `%s'\n", name);
487 sw->vol = nominal_volume;
488 sw->callback.fn = callback_fn;
489 sw->callback.opaque = callback_opaque;
494 (live << old_sw->info.shift)
495 * old_sw->info.bytes_per_second
496 / sw->info.bytes_per_second;
499 dolog ("Silence will be mixed %d\n", mixed);
501 sw->total_hw_samples_mixed += mixed;
506 dolog ("%s\n", name);
507 audio_pcm_print_info ("hw", &sw->hw->info);
508 audio_pcm_print_info ("sw", &sw->info);
514 glue (AUD_close_, TYPE) (card, sw);
518 int glue (AUD_is_active_, TYPE) (SW *sw)
520 return sw ? sw->active : 0;
523 void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
529 ts->old_ts = sw->hw->ts_helper;
532 uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
534 uint64_t delta, cur_ts, old_ts;
540 cur_ts = sw->hw->ts_helper;
542 /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
544 if (cur_ts >= old_ts) {
545 delta = cur_ts - old_ts;
548 delta = UINT64_MAX - old_ts + cur_ts;
555 return muldiv64 (delta, sw->hw->info.freq, 1000000);