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)
78 static int glue (audio_pcm_hw_alloc_resources_, TYPE) (HW *hw)
80 HWBUF = audio_calloc (AUDIO_FUNC, hw->samples, sizeof (struct st_sample));
82 dolog ("Could not allocate " NAME " buffer (%d 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 (AUDIO_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)
186 AudioState *s = &glob_audio_state;
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) (HW *hw)
204 AudioState *s = &glob_audio_state;
205 return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
208 static HW *glue (audio_pcm_hw_find_any_enabled_, TYPE) (HW *hw)
210 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
218 static HW *glue (audio_pcm_hw_find_specific_, TYPE) (
220 struct audsettings *as
223 while ((hw = glue (audio_pcm_hw_find_any_, TYPE) (hw))) {
224 if (audio_pcm_info_eq (&hw->info, as)) {
231 static HW *glue (audio_pcm_hw_add_new_, TYPE) (struct audsettings *as)
234 AudioState *s = &glob_audio_state;
235 struct audio_driver *drv = s->drv;
237 if (!glue (s->nb_hw_voices_, TYPE)) {
241 if (audio_bug (AUDIO_FUNC, !drv)) {
242 dolog ("No host audio driver\n");
246 if (audio_bug (AUDIO_FUNC, !drv->pcm_ops)) {
247 dolog ("Host audio driver without pcm_ops\n");
251 hw = audio_calloc (AUDIO_FUNC, 1, glue (drv->voice_size_, TYPE));
253 dolog ("Can not allocate voice `%s' size %d\n",
254 drv->name, glue (drv->voice_size_, TYPE));
258 hw->pcm_ops = drv->pcm_ops;
259 hw->ctl_caps = drv->ctl_caps;
261 QLIST_INIT (&hw->sw_head);
263 QLIST_INIT (&hw->cap_head);
265 if (glue (hw->pcm_ops->init_, TYPE) (hw, as, s->drv_opaque)) {
269 if (audio_bug (AUDIO_FUNC, hw->samples <= 0)) {
270 dolog ("hw->samples=%d\n", hw->samples);
275 hw->clip = mixeng_clip
277 hw->conv = mixeng_conv
279 [hw->info.nchannels == 2]
281 [hw->info.swap_endianness]
282 [audio_bits_to_index (hw->info.bits)];
284 if (glue (audio_pcm_hw_alloc_resources_, TYPE) (hw)) {
288 QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
289 glue (s->nb_hw_voices_, TYPE) -= 1;
291 audio_attach_capture (hw);
296 glue (hw->pcm_ops->fini_, TYPE) (hw);
302 static HW *glue (audio_pcm_hw_add_, TYPE) (struct audsettings *as)
306 if (glue (conf.fixed_, TYPE).enabled && glue (conf.fixed_, TYPE).greedy) {
307 hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
313 hw = glue (audio_pcm_hw_find_specific_, TYPE) (NULL, as);
318 hw = glue (audio_pcm_hw_add_new_, TYPE) (as);
323 return glue (audio_pcm_hw_find_any_, TYPE) (NULL);
326 static SW *glue (audio_pcm_create_voice_pair_, TYPE) (
328 struct audsettings *as
333 struct audsettings hw_as;
335 if (glue (conf.fixed_, TYPE).enabled) {
336 hw_as = glue (conf.fixed_, TYPE).settings;
342 sw = audio_calloc (AUDIO_FUNC, 1, sizeof (*sw));
344 dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
345 sw_name ? sw_name : "unknown", sizeof (*sw));
349 hw = glue (audio_pcm_hw_add_, TYPE) (&hw_as);
354 glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
356 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
363 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
364 glue (audio_pcm_hw_gc_, TYPE) (&hw);
371 static void glue (audio_close_, TYPE) (SW *sw)
373 glue (audio_pcm_sw_fini_, TYPE) (sw);
374 glue (audio_pcm_hw_del_sw_, TYPE) (sw);
375 glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
379 void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
382 if (audio_bug (AUDIO_FUNC, !card)) {
383 dolog ("card=%p\n", card);
387 glue (audio_close_, TYPE) (sw);
391 SW *glue (AUD_open_, TYPE) (
395 void *callback_opaque ,
396 audio_callback_fn callback_fn,
397 struct audsettings *as
400 AudioState *s = &glob_audio_state;
402 if (audio_bug (AUDIO_FUNC, !card || !name || !callback_fn || !as)) {
403 dolog ("card=%p name=%p callback_fn=%p as=%p\n",
404 card, name, callback_fn, as);
408 ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
409 name, as->freq, as->nchannels, as->fmt);
411 if (audio_bug (AUDIO_FUNC, audio_validate_settings (as))) {
412 audio_print_settings (as);
416 if (audio_bug (AUDIO_FUNC, !s->drv)) {
417 dolog ("Can not open `%s' (no host audio driver)\n", name);
421 if (sw && audio_pcm_info_eq (&sw->info, as)) {
425 if (!glue (conf.fixed_, TYPE).enabled && sw) {
426 glue (AUD_close_, TYPE) (card, sw);
434 dolog ("Internal logic error voice `%s' has no hardware store\n",
439 glue (audio_pcm_sw_fini_, TYPE) (sw);
440 if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
445 sw = glue (audio_pcm_create_voice_pair_, TYPE) (name, as);
447 dolog ("Failed to create voice `%s'\n", name);
453 sw->vol = nominal_volume;
454 sw->callback.fn = callback_fn;
455 sw->callback.opaque = callback_opaque;
458 dolog ("%s\n", name);
459 audio_pcm_print_info ("hw", &sw->hw->info);
460 audio_pcm_print_info ("sw", &sw->info);
466 glue (AUD_close_, TYPE) (card, sw);
470 int glue (AUD_is_active_, TYPE) (SW *sw)
472 return sw ? sw->active : 0;
475 void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
481 ts->old_ts = sw->hw->ts_helper;
484 uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
486 uint64_t delta, cur_ts, old_ts;
492 cur_ts = sw->hw->ts_helper;
494 /* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
496 if (cur_ts >= old_ts) {
497 delta = cur_ts - old_ts;
500 delta = UINT64_MAX - old_ts + cur_ts;
507 return muldiv64 (delta, sw->hw->info.freq, 1000000);