577 lines
14 KiB
C
577 lines
14 KiB
C
/*
|
|
* QEMU Audio subsystem header
|
|
*
|
|
* Copyright (c) 2005 Vassili Karpov (malc)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifdef DAC
|
|
#define NAME "playback"
|
|
#define HWBUF hw->mix_buf
|
|
#define TYPE out
|
|
#define HW HWVoiceOut
|
|
#define SW SWVoiceOut
|
|
#else
|
|
#define NAME "capture"
|
|
#define TYPE in
|
|
#define HW HWVoiceIn
|
|
#define SW SWVoiceIn
|
|
#define HWBUF hw->conv_buf
|
|
#endif
|
|
|
|
static void glue(audio_init_nb_voices_, TYPE)(AudioState *s,
|
|
struct audio_driver *drv)
|
|
{
|
|
int max_voices = glue (drv->max_voices_, TYPE);
|
|
int voice_size = glue (drv->voice_size_, TYPE);
|
|
|
|
if (glue (s->nb_hw_voices_, TYPE) > max_voices) {
|
|
if (!max_voices) {
|
|
#ifdef DAC
|
|
dolog ("Driver `%s' does not support " NAME "\n", drv->name);
|
|
#endif
|
|
} else {
|
|
dolog ("Driver `%s' does not support %d " NAME " voices, max %d\n",
|
|
drv->name,
|
|
glue (s->nb_hw_voices_, TYPE),
|
|
max_voices);
|
|
}
|
|
glue (s->nb_hw_voices_, TYPE) = max_voices;
|
|
}
|
|
|
|
if (audio_bug(__func__, !voice_size && max_voices)) {
|
|
dolog ("drv=`%s' voice_size=0 max_voices=%d\n",
|
|
drv->name, max_voices);
|
|
glue (s->nb_hw_voices_, TYPE) = 0;
|
|
}
|
|
|
|
if (audio_bug(__func__, voice_size && !max_voices)) {
|
|
dolog ("drv=`%s' voice_size=%d max_voices=0\n",
|
|
drv->name, voice_size);
|
|
}
|
|
}
|
|
|
|
static void glue (audio_pcm_hw_free_resources_, TYPE) (HW *hw)
|
|
{
|
|
g_free(hw->buf_emul);
|
|
g_free (HWBUF);
|
|
HWBUF = NULL;
|
|
}
|
|
|
|
static void glue(audio_pcm_hw_alloc_resources_, TYPE)(HW *hw)
|
|
{
|
|
if (glue(audio_get_pdo_, TYPE)(hw->s->dev)->mixing_engine) {
|
|
size_t samples = hw->samples;
|
|
if (audio_bug(__func__, samples == 0)) {
|
|
dolog("Attempted to allocate empty buffer\n");
|
|
}
|
|
|
|
HWBUF = g_malloc0(sizeof(STSampleBuffer) + sizeof(st_sample) * samples);
|
|
HWBUF->size = samples;
|
|
} else {
|
|
HWBUF = NULL;
|
|
}
|
|
}
|
|
|
|
static void glue (audio_pcm_sw_free_resources_, TYPE) (SW *sw)
|
|
{
|
|
g_free (sw->buf);
|
|
|
|
if (sw->rate) {
|
|
st_rate_stop (sw->rate);
|
|
}
|
|
|
|
sw->buf = NULL;
|
|
sw->rate = NULL;
|
|
}
|
|
|
|
static int glue (audio_pcm_sw_alloc_resources_, TYPE) (SW *sw)
|
|
{
|
|
int samples;
|
|
|
|
if (!glue(audio_get_pdo_, TYPE)(sw->s->dev)->mixing_engine) {
|
|
return 0;
|
|
}
|
|
|
|
#ifdef DAC
|
|
samples = ((int64_t) sw->HWBUF->size << 32) / sw->ratio;
|
|
#else
|
|
samples = (int64_t)sw->HWBUF->size * sw->ratio >> 32;
|
|
#endif
|
|
|
|
sw->buf = audio_calloc(__func__, samples, sizeof(struct st_sample));
|
|
if (!sw->buf) {
|
|
dolog ("Could not allocate buffer for `%s' (%d samples)\n",
|
|
SW_NAME (sw), samples);
|
|
return -1;
|
|
}
|
|
|
|
#ifdef DAC
|
|
sw->rate = st_rate_start (sw->info.freq, sw->hw->info.freq);
|
|
#else
|
|
sw->rate = st_rate_start (sw->hw->info.freq, sw->info.freq);
|
|
#endif
|
|
if (!sw->rate) {
|
|
g_free (sw->buf);
|
|
sw->buf = NULL;
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int glue (audio_pcm_sw_init_, TYPE) (
|
|
SW *sw,
|
|
HW *hw,
|
|
const char *name,
|
|
struct audsettings *as
|
|
)
|
|
{
|
|
int err;
|
|
|
|
audio_pcm_init_info (&sw->info, as);
|
|
sw->hw = hw;
|
|
sw->active = 0;
|
|
#ifdef DAC
|
|
sw->ratio = ((int64_t) sw->hw->info.freq << 32) / sw->info.freq;
|
|
sw->total_hw_samples_mixed = 0;
|
|
sw->empty = 1;
|
|
#else
|
|
sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq;
|
|
#endif
|
|
|
|
if (sw->info.is_float) {
|
|
#ifdef DAC
|
|
sw->conv = mixeng_conv_float[sw->info.nchannels == 2];
|
|
#else
|
|
sw->clip = mixeng_clip_float[sw->info.nchannels == 2];
|
|
#endif
|
|
} else {
|
|
#ifdef DAC
|
|
sw->conv = mixeng_conv
|
|
#else
|
|
sw->clip = mixeng_clip
|
|
#endif
|
|
[sw->info.nchannels == 2]
|
|
[sw->info.is_signed]
|
|
[sw->info.swap_endianness]
|
|
[audio_bits_to_index(sw->info.bits)];
|
|
}
|
|
|
|
sw->name = g_strdup (name);
|
|
err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw);
|
|
if (err) {
|
|
g_free (sw->name);
|
|
sw->name = NULL;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
static void glue (audio_pcm_sw_fini_, TYPE) (SW *sw)
|
|
{
|
|
glue (audio_pcm_sw_free_resources_, TYPE) (sw);
|
|
g_free (sw->name);
|
|
sw->name = NULL;
|
|
}
|
|
|
|
static void glue (audio_pcm_hw_add_sw_, TYPE) (HW *hw, SW *sw)
|
|
{
|
|
QLIST_INSERT_HEAD (&hw->sw_head, sw, entries);
|
|
}
|
|
|
|
static void glue (audio_pcm_hw_del_sw_, TYPE) (SW *sw)
|
|
{
|
|
QLIST_REMOVE (sw, entries);
|
|
}
|
|
|
|
static void glue (audio_pcm_hw_gc_, TYPE) (HW **hwp)
|
|
{
|
|
HW *hw = *hwp;
|
|
AudioState *s = hw->s;
|
|
|
|
if (!hw->sw_head.lh_first) {
|
|
#ifdef DAC
|
|
audio_detach_capture(hw);
|
|
#endif
|
|
QLIST_REMOVE(hw, entries);
|
|
glue(hw->pcm_ops->fini_, TYPE) (hw);
|
|
glue(s->nb_hw_voices_, TYPE) += 1;
|
|
glue(audio_pcm_hw_free_resources_ , TYPE) (hw);
|
|
g_free(hw);
|
|
*hwp = NULL;
|
|
}
|
|
}
|
|
|
|
static HW *glue(audio_pcm_hw_find_any_, TYPE)(AudioState *s, HW *hw)
|
|
{
|
|
return hw ? hw->entries.le_next : glue (s->hw_head_, TYPE).lh_first;
|
|
}
|
|
|
|
static HW *glue(audio_pcm_hw_find_any_enabled_, TYPE)(AudioState *s, HW *hw)
|
|
{
|
|
while ((hw = glue(audio_pcm_hw_find_any_, TYPE)(s, hw))) {
|
|
if (hw->enabled) {
|
|
return hw;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static HW *glue(audio_pcm_hw_find_specific_, TYPE)(AudioState *s, HW *hw,
|
|
struct audsettings *as)
|
|
{
|
|
while ((hw = glue(audio_pcm_hw_find_any_, TYPE)(s, hw))) {
|
|
if (audio_pcm_info_eq (&hw->info, as)) {
|
|
return hw;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static HW *glue(audio_pcm_hw_add_new_, TYPE)(AudioState *s,
|
|
struct audsettings *as)
|
|
{
|
|
HW *hw;
|
|
struct audio_driver *drv = s->drv;
|
|
|
|
if (!glue (s->nb_hw_voices_, TYPE)) {
|
|
return NULL;
|
|
}
|
|
|
|
if (audio_bug(__func__, !drv)) {
|
|
dolog ("No host audio driver\n");
|
|
return NULL;
|
|
}
|
|
|
|
if (audio_bug(__func__, !drv->pcm_ops)) {
|
|
dolog ("Host audio driver without pcm_ops\n");
|
|
return NULL;
|
|
}
|
|
|
|
hw = audio_calloc(__func__, 1, glue(drv->voice_size_, TYPE));
|
|
if (!hw) {
|
|
dolog ("Can not allocate voice `%s' size %d\n",
|
|
drv->name, glue (drv->voice_size_, TYPE));
|
|
return NULL;
|
|
}
|
|
|
|
hw->s = s;
|
|
hw->pcm_ops = drv->pcm_ops;
|
|
|
|
QLIST_INIT (&hw->sw_head);
|
|
#ifdef DAC
|
|
QLIST_INIT (&hw->cap_head);
|
|
#endif
|
|
if (glue (hw->pcm_ops->init_, TYPE) (hw, as, s->drv_opaque)) {
|
|
goto err0;
|
|
}
|
|
|
|
if (audio_bug(__func__, hw->samples <= 0)) {
|
|
dolog("hw->samples=%zd\n", hw->samples);
|
|
goto err1;
|
|
}
|
|
|
|
if (hw->info.is_float) {
|
|
#ifdef DAC
|
|
hw->clip = mixeng_clip_float[hw->info.nchannels == 2];
|
|
#else
|
|
hw->conv = mixeng_conv_float[hw->info.nchannels == 2];
|
|
#endif
|
|
} else {
|
|
#ifdef DAC
|
|
hw->clip = mixeng_clip
|
|
#else
|
|
hw->conv = mixeng_conv
|
|
#endif
|
|
[hw->info.nchannels == 2]
|
|
[hw->info.is_signed]
|
|
[hw->info.swap_endianness]
|
|
[audio_bits_to_index(hw->info.bits)];
|
|
}
|
|
|
|
glue(audio_pcm_hw_alloc_resources_, TYPE)(hw);
|
|
|
|
QLIST_INSERT_HEAD (&s->glue (hw_head_, TYPE), hw, entries);
|
|
glue (s->nb_hw_voices_, TYPE) -= 1;
|
|
#ifdef DAC
|
|
audio_attach_capture (hw);
|
|
#endif
|
|
return hw;
|
|
|
|
err1:
|
|
glue (hw->pcm_ops->fini_, TYPE) (hw);
|
|
err0:
|
|
g_free (hw);
|
|
return NULL;
|
|
}
|
|
|
|
AudiodevPerDirectionOptions *glue(audio_get_pdo_, TYPE)(Audiodev *dev)
|
|
{
|
|
switch (dev->driver) {
|
|
case AUDIODEV_DRIVER_NONE:
|
|
return dev->u.none.TYPE;
|
|
case AUDIODEV_DRIVER_ALSA:
|
|
return qapi_AudiodevAlsaPerDirectionOptions_base(dev->u.alsa.TYPE);
|
|
case AUDIODEV_DRIVER_COREAUDIO:
|
|
return qapi_AudiodevCoreaudioPerDirectionOptions_base(
|
|
dev->u.coreaudio.TYPE);
|
|
case AUDIODEV_DRIVER_DBUS:
|
|
return dev->u.dbus.TYPE;
|
|
case AUDIODEV_DRIVER_DSOUND:
|
|
return dev->u.dsound.TYPE;
|
|
case AUDIODEV_DRIVER_JACK:
|
|
return qapi_AudiodevJackPerDirectionOptions_base(dev->u.jack.TYPE);
|
|
case AUDIODEV_DRIVER_OSS:
|
|
return qapi_AudiodevOssPerDirectionOptions_base(dev->u.oss.TYPE);
|
|
case AUDIODEV_DRIVER_PA:
|
|
return qapi_AudiodevPaPerDirectionOptions_base(dev->u.pa.TYPE);
|
|
case AUDIODEV_DRIVER_SDL:
|
|
return qapi_AudiodevSdlPerDirectionOptions_base(dev->u.sdl.TYPE);
|
|
case AUDIODEV_DRIVER_SNDIO:
|
|
return dev->u.sndio.TYPE;
|
|
case AUDIODEV_DRIVER_SPICE:
|
|
return dev->u.spice.TYPE;
|
|
case AUDIODEV_DRIVER_WAV:
|
|
return dev->u.wav.TYPE;
|
|
|
|
case AUDIODEV_DRIVER__MAX:
|
|
break;
|
|
}
|
|
abort();
|
|
}
|
|
|
|
static HW *glue(audio_pcm_hw_add_, TYPE)(AudioState *s, struct audsettings *as)
|
|
{
|
|
HW *hw;
|
|
AudiodevPerDirectionOptions *pdo = glue(audio_get_pdo_, TYPE)(s->dev);
|
|
|
|
if (!pdo->mixing_engine || pdo->fixed_settings) {
|
|
hw = glue(audio_pcm_hw_add_new_, TYPE)(s, as);
|
|
if (!pdo->mixing_engine || hw) {
|
|
return hw;
|
|
}
|
|
}
|
|
|
|
hw = glue(audio_pcm_hw_find_specific_, TYPE)(s, NULL, as);
|
|
if (hw) {
|
|
return hw;
|
|
}
|
|
|
|
hw = glue(audio_pcm_hw_add_new_, TYPE)(s, as);
|
|
if (hw) {
|
|
return hw;
|
|
}
|
|
|
|
return glue(audio_pcm_hw_find_any_, TYPE)(s, NULL);
|
|
}
|
|
|
|
static SW *glue(audio_pcm_create_voice_pair_, TYPE)(
|
|
AudioState *s,
|
|
const char *sw_name,
|
|
struct audsettings *as
|
|
)
|
|
{
|
|
SW *sw;
|
|
HW *hw;
|
|
struct audsettings hw_as;
|
|
AudiodevPerDirectionOptions *pdo = glue(audio_get_pdo_, TYPE)(s->dev);
|
|
|
|
if (pdo->fixed_settings) {
|
|
hw_as = audiodev_to_audsettings(pdo);
|
|
} else {
|
|
hw_as = *as;
|
|
}
|
|
|
|
sw = audio_calloc(__func__, 1, sizeof(*sw));
|
|
if (!sw) {
|
|
dolog ("Could not allocate soft voice `%s' (%zu bytes)\n",
|
|
sw_name ? sw_name : "unknown", sizeof (*sw));
|
|
goto err1;
|
|
}
|
|
sw->s = s;
|
|
|
|
hw = glue(audio_pcm_hw_add_, TYPE)(s, &hw_as);
|
|
if (!hw) {
|
|
goto err2;
|
|
}
|
|
|
|
glue (audio_pcm_hw_add_sw_, TYPE) (hw, sw);
|
|
|
|
if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, sw_name, as)) {
|
|
goto err3;
|
|
}
|
|
|
|
return sw;
|
|
|
|
err3:
|
|
glue (audio_pcm_hw_del_sw_, TYPE) (sw);
|
|
glue (audio_pcm_hw_gc_, TYPE) (&hw);
|
|
err2:
|
|
g_free (sw);
|
|
err1:
|
|
return NULL;
|
|
}
|
|
|
|
static void glue (audio_close_, TYPE) (SW *sw)
|
|
{
|
|
glue (audio_pcm_sw_fini_, TYPE) (sw);
|
|
glue (audio_pcm_hw_del_sw_, TYPE) (sw);
|
|
glue (audio_pcm_hw_gc_, TYPE) (&sw->hw);
|
|
g_free (sw);
|
|
}
|
|
|
|
void glue (AUD_close_, TYPE) (QEMUSoundCard *card, SW *sw)
|
|
{
|
|
if (sw) {
|
|
if (audio_bug(__func__, !card)) {
|
|
dolog ("card=%p\n", card);
|
|
return;
|
|
}
|
|
|
|
glue (audio_close_, TYPE) (sw);
|
|
}
|
|
}
|
|
|
|
SW *glue (AUD_open_, TYPE) (
|
|
QEMUSoundCard *card,
|
|
SW *sw,
|
|
const char *name,
|
|
void *callback_opaque ,
|
|
audio_callback_fn callback_fn,
|
|
struct audsettings *as
|
|
)
|
|
{
|
|
AudioState *s;
|
|
AudiodevPerDirectionOptions *pdo;
|
|
|
|
if (audio_bug(__func__, !card || !name || !callback_fn || !as)) {
|
|
dolog ("card=%p name=%p callback_fn=%p as=%p\n",
|
|
card, name, callback_fn, as);
|
|
goto fail;
|
|
}
|
|
|
|
s = card->state;
|
|
pdo = glue(audio_get_pdo_, TYPE)(s->dev);
|
|
|
|
ldebug ("open %s, freq %d, nchannels %d, fmt %d\n",
|
|
name, as->freq, as->nchannels, as->fmt);
|
|
|
|
if (audio_bug(__func__, audio_validate_settings(as))) {
|
|
audio_print_settings (as);
|
|
goto fail;
|
|
}
|
|
|
|
if (audio_bug(__func__, !s->drv)) {
|
|
dolog ("Can not open `%s' (no host audio driver)\n", name);
|
|
goto fail;
|
|
}
|
|
|
|
if (sw && audio_pcm_info_eq (&sw->info, as)) {
|
|
return sw;
|
|
}
|
|
|
|
if (!pdo->fixed_settings && sw) {
|
|
glue (AUD_close_, TYPE) (card, sw);
|
|
sw = NULL;
|
|
}
|
|
|
|
if (sw) {
|
|
HW *hw = sw->hw;
|
|
|
|
if (!hw) {
|
|
dolog ("Internal logic error voice `%s' has no hardware store\n",
|
|
SW_NAME (sw));
|
|
goto fail;
|
|
}
|
|
|
|
glue (audio_pcm_sw_fini_, TYPE) (sw);
|
|
if (glue (audio_pcm_sw_init_, TYPE) (sw, hw, name, as)) {
|
|
goto fail;
|
|
}
|
|
} else {
|
|
sw = glue(audio_pcm_create_voice_pair_, TYPE)(s, name, as);
|
|
if (!sw) {
|
|
dolog ("Failed to create voice `%s'\n", name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
sw->card = card;
|
|
sw->vol = nominal_volume;
|
|
sw->callback.fn = callback_fn;
|
|
sw->callback.opaque = callback_opaque;
|
|
|
|
#ifdef DEBUG_AUDIO
|
|
dolog ("%s\n", name);
|
|
audio_pcm_print_info ("hw", &sw->hw->info);
|
|
audio_pcm_print_info ("sw", &sw->info);
|
|
#endif
|
|
|
|
return sw;
|
|
|
|
fail:
|
|
glue (AUD_close_, TYPE) (card, sw);
|
|
return NULL;
|
|
}
|
|
|
|
int glue (AUD_is_active_, TYPE) (SW *sw)
|
|
{
|
|
return sw ? sw->active : 0;
|
|
}
|
|
|
|
void glue (AUD_init_time_stamp_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
|
|
{
|
|
if (!sw) {
|
|
return;
|
|
}
|
|
|
|
ts->old_ts = sw->hw->ts_helper;
|
|
}
|
|
|
|
uint64_t glue (AUD_get_elapsed_usec_, TYPE) (SW *sw, QEMUAudioTimeStamp *ts)
|
|
{
|
|
uint64_t delta, cur_ts, old_ts;
|
|
|
|
if (!sw) {
|
|
return 0;
|
|
}
|
|
|
|
cur_ts = sw->hw->ts_helper;
|
|
old_ts = ts->old_ts;
|
|
/* dolog ("cur %" PRId64 " old %" PRId64 "\n", cur_ts, old_ts); */
|
|
|
|
if (cur_ts >= old_ts) {
|
|
delta = cur_ts - old_ts;
|
|
} else {
|
|
delta = UINT64_MAX - old_ts + cur_ts;
|
|
}
|
|
|
|
if (!delta) {
|
|
return 0;
|
|
}
|
|
|
|
return muldiv64 (delta, sw->hw->info.freq, 1000000);
|
|
}
|
|
|
|
#undef TYPE
|
|
#undef HW
|
|
#undef SW
|
|
#undef HWBUF
|
|
#undef NAME
|