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Added support for different mmap areas when running or stopped. Cleanings

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This commit is contained in:
Abramo Bagnara 2000-10-07 16:59:48 +00:00
parent b95bc05d81
commit 5b3e5e6c74
16 changed files with 247 additions and 161 deletions
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80
include/pcm.h
View file

@ -110,8 +110,9 @@ typedef enum {
SND_PCM_TYPE_ADPCM, SND_PCM_TYPE_ADPCM,
SND_PCM_TYPE_RATE, SND_PCM_TYPE_RATE,
SND_PCM_TYPE_ROUTE, SND_PCM_TYPE_ROUTE,
SND_PCM_TYPE_COPY,
SND_PCM_TYPE_PLUG, SND_PCM_TYPE_PLUG,
SND_PCM_TYPE_SHARE,
SND_PCM_TYPE_MIX,
SND_PCM_TYPE_DROUTE, SND_PCM_TYPE_DROUTE,
SND_PCM_TYPE_LBSERVER, SND_PCM_TYPE_LBSERVER,
} snd_pcm_type_t; } snd_pcm_type_t;
@ -127,56 +128,57 @@ int snd_pcm_plug_open_subdevice(snd_pcm_t **handle, int card, int device, int su
int snd_pcm_plug_open_device(snd_pcm_t **handle, int card, int device, int stream, int mode); int snd_pcm_plug_open_device(snd_pcm_t **handle, int card, int device, int stream, int mode);
#define snd_pcm_write snd_pcm_writei #define snd_pcm_write snd_pcm_writei
#define snd_pcm_read snd_pcm_readi #define snd_pcm_read snd_pcm_readi
ssize_t snd_pcm_writev(snd_pcm_t *handle, const struct iovec *vector, int count); ssize_t snd_pcm_writev(snd_pcm_t *pcm, const struct iovec *vector, int count);
ssize_t snd_pcm_readv(snd_pcm_t *handle, const struct iovec *vector, int count); ssize_t snd_pcm_readv(snd_pcm_t *pcm, const struct iovec *vector, int count);
snd_pcm_type_t snd_pcm_type(snd_pcm_t *handle); snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm);
int snd_pcm_close(snd_pcm_t *handle); int snd_pcm_close(snd_pcm_t *pcm);
int snd_pcm_poll_descriptor(snd_pcm_t *handle); int snd_pcm_poll_descriptor(snd_pcm_t *pcm);
int snd_pcm_nonblock(snd_pcm_t *handle, int nonblock); int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock);
int snd_pcm_info(snd_pcm_t *handle, snd_pcm_info_t *info); int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info);
int snd_pcm_params_info(snd_pcm_t *handle, snd_pcm_params_info_t *info); int snd_pcm_params_info(snd_pcm_t *pcm, snd_pcm_params_info_t *info);
int snd_pcm_params(snd_pcm_t *handle, snd_pcm_params_t *params); int snd_pcm_params(snd_pcm_t *pcm, snd_pcm_params_t *params);
int snd_pcm_setup(snd_pcm_t *handle, snd_pcm_setup_t *setup); int snd_pcm_setup(snd_pcm_t *pcm, snd_pcm_setup_t *setup);
int snd_pcm_channel_info(snd_pcm_t *handle, snd_pcm_channel_info_t *info); int snd_pcm_channel_info(snd_pcm_t *pcm, snd_pcm_channel_info_t *info);
int snd_pcm_channel_params(snd_pcm_t *handle, snd_pcm_channel_params_t *params); int snd_pcm_channel_params(snd_pcm_t *pcm, snd_pcm_channel_params_t *params);
int snd_pcm_channel_setup(snd_pcm_t *handle, snd_pcm_channel_setup_t *setup); int snd_pcm_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t *setup);
int snd_pcm_status(snd_pcm_t *handle, snd_pcm_status_t *status); int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status);
int snd_pcm_prepare(snd_pcm_t *handle); int snd_pcm_prepare(snd_pcm_t *pcm);
int snd_pcm_start(snd_pcm_t *handle); int snd_pcm_start(snd_pcm_t *pcm);
int snd_pcm_drop(snd_pcm_t *handle); int snd_pcm_drop(snd_pcm_t *pcm);
int snd_pcm_drain(snd_pcm_t *handle); int snd_pcm_drain(snd_pcm_t *pcm);
int snd_pcm_pause(snd_pcm_t *handle, int enable); int snd_pcm_pause(snd_pcm_t *pcm, int enable);
int snd_pcm_state(snd_pcm_t *handle); int snd_pcm_state(snd_pcm_t *pcm);
int snd_pcm_delay(snd_pcm_t *handle, ssize_t *delayp); int snd_pcm_delay(snd_pcm_t *pcm, ssize_t *delayp);
ssize_t snd_pcm_rewind(snd_pcm_t *handle, size_t frames); ssize_t snd_pcm_rewind(snd_pcm_t *pcm, size_t frames);
ssize_t snd_pcm_writei(snd_pcm_t *handle, const void *buffer, size_t size); ssize_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, size_t size);
ssize_t snd_pcm_readi(snd_pcm_t *handle, void *buffer, size_t size); ssize_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, size_t size);
ssize_t snd_pcm_writen(snd_pcm_t *handle, void **bufs, size_t size); ssize_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, size_t size);
ssize_t snd_pcm_readn(snd_pcm_t *handle, void **bufs, size_t size); ssize_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, size_t size);
int snd_pcm_dump_setup(snd_pcm_t *handle, FILE *fp); int snd_pcm_dump_setup(snd_pcm_t *pcm, FILE *fp);
int snd_pcm_dump(snd_pcm_t *handle, FILE *fp); int snd_pcm_dump(snd_pcm_t *pcm, FILE *fp);
int snd_pcm_dump_status(snd_pcm_status_t *status, FILE *fp); int snd_pcm_dump_status(snd_pcm_status_t *status, FILE *fp);
int snd_pcm_link(snd_pcm_t *handle1, snd_pcm_t *handle2); int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
int snd_pcm_unlink(snd_pcm_t *handle); int snd_pcm_unlink(snd_pcm_t *pcm);
int snd_pcm_channels_mask(snd_pcm_t *handle, bitset_t *cmask); int snd_pcm_channels_mask(snd_pcm_t *pcm, bitset_t *cmask);
int snd_pcm_wait(snd_pcm_t *pcm, int timeout); int snd_pcm_wait(snd_pcm_t *pcm, int timeout);
ssize_t snd_pcm_avail_update(snd_pcm_t *pcm); ssize_t snd_pcm_avail_update(snd_pcm_t *pcm);
/* mmap */ /* mmap */
int snd_pcm_mmap(snd_pcm_t *handle, void **buffer); int snd_pcm_mmap(snd_pcm_t *pcm, void **buffer);
int snd_pcm_munmap(snd_pcm_t *handle); int snd_pcm_munmap(snd_pcm_t *pcm);
int snd_pcm_mmap_get_areas(snd_pcm_t *handle, snd_pcm_channel_area_t *areas); snd_pcm_channel_area_t *snd_pcm_mmap_areas(snd_pcm_t *pcm);
int snd_pcm_mmap_get_areas(snd_pcm_t *pcm, snd_pcm_channel_area_t *stopped_areas, snd_pcm_channel_area_t *running_areas);
ssize_t snd_pcm_mmap_forward(snd_pcm_t *pcm, size_t size); ssize_t snd_pcm_mmap_forward(snd_pcm_t *pcm, size_t size);
size_t snd_pcm_mmap_offset(snd_pcm_t *pcm); size_t snd_pcm_mmap_offset(snd_pcm_t *pcm);
size_t snd_pcm_mmap_xfer(snd_pcm_t *pcm, size_t size); size_t snd_pcm_mmap_xfer(snd_pcm_t *pcm, size_t size);
ssize_t snd_pcm_mmap_writei(snd_pcm_t *handle, const void *buffer, size_t size); ssize_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, size_t size);
ssize_t snd_pcm_mmap_readi(snd_pcm_t *handle, void *buffer, size_t size); ssize_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, size_t size);
ssize_t snd_pcm_mmap_writen(snd_pcm_t *handle, void **bufs, size_t size); ssize_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, size_t size);
ssize_t snd_pcm_mmap_readn(snd_pcm_t *handle, void **bufs, size_t size); ssize_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, size_t size);
const char *snd_pcm_format_name(int format); const char *snd_pcm_format_name(int format);
const char *snd_pcm_format_description(int format); const char *snd_pcm_format_description(int format);

1
src/pcm/pcm.c
View file

@ -653,6 +653,7 @@ ssize_t snd_pcm_avail_update(snd_pcm_t *pcm)
ssize_t snd_pcm_mmap_forward(snd_pcm_t *pcm, size_t size) ssize_t snd_pcm_mmap_forward(snd_pcm_t *pcm, size_t size)
{ {
assert(size > 0); assert(size > 0);
assert(size <= snd_pcm_mmap_avail(pcm));
return pcm->fast_ops->mmap_forward(pcm->fast_op_arg, size); return pcm->fast_ops->mmap_forward(pcm->fast_op_arg, size);
} }

4
src/pcm/pcm_adpcm.c
View file

@ -466,7 +466,7 @@ static ssize_t snd_pcm_adpcm_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer);
adpcm->func(areas, offset, adpcm->func(areas, offset,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
adpcm->getput_idx, adpcm->states); adpcm->getput_idx, adpcm->states);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);
@ -500,7 +500,7 @@ static ssize_t snd_pcm_adpcm_read_areas(snd_pcm_t *pcm,
assert(size > 0); assert(size > 0);
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer);
adpcm->func(slave->mmap_areas, snd_pcm_mmap_offset(slave), adpcm->func(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
areas, offset, areas, offset,
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
adpcm->getput_idx, adpcm->states); adpcm->getput_idx, adpcm->states);

4
src/pcm/pcm_alaw.c
View file

@ -334,7 +334,7 @@ static ssize_t snd_pcm_alaw_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer);
alaw->func(areas, offset, alaw->func(areas, offset,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
alaw->getput_idx); alaw->getput_idx);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);
@ -368,7 +368,7 @@ static ssize_t snd_pcm_alaw_read_areas(snd_pcm_t *pcm,
assert(size > 0); assert(size > 0);
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer);
alaw->func(slave->mmap_areas, snd_pcm_mmap_offset(slave), alaw->func(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
areas, offset, areas, offset,
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
alaw->getput_idx); alaw->getput_idx);

2
src/pcm/pcm_client.c
View file

@ -470,7 +470,7 @@ static int snd_pcm_client_shm_munmap_status(snd_pcm_t *pcm)
if (err < 0) if (err < 0)
return err; return err;
/* FIXME: not mmap */ /* FIXME: not mmap */
if (munmap(pcm->mmap_status, sizeof(*pcm->mmap_status)) < 0) if (munmap((void*)pcm->mmap_status, sizeof(*pcm->mmap_status)) < 0)
return -errno; return -errno;
return ctrl->result; return ctrl->result;
} }

42
src/pcm/pcm_file.c
View file

@ -141,19 +141,23 @@ static void snd_pcm_file_write_areas(snd_pcm_t *pcm,
{ {
snd_pcm_file_t *file = pcm->private; snd_pcm_file_t *file = pcm->private;
size_t bytes = snd_pcm_frames_to_bytes(pcm, frames); size_t bytes = snd_pcm_frames_to_bytes(pcm, frames);
char buf[bytes]; char *buf;
size_t channels = pcm->setup.format.channels; size_t channels = pcm->setup.format.channels;
snd_pcm_channel_area_t buf_areas[channels]; snd_pcm_channel_area_t buf_areas[channels];
size_t channel; size_t channel;
ssize_t r; ssize_t r;
for (channel = 0; channel < channels; ++channel) { if (pcm->setup.mmap_shape != SND_PCM_MMAP_INTERLEAVED) {
snd_pcm_channel_area_t *a = &buf_areas[channel]; buf = alloca(bytes);
a->addr = buf; for (channel = 0; channel < channels; ++channel) {
a->first = pcm->bits_per_sample * channel; snd_pcm_channel_area_t *a = &buf_areas[channel];
a->step = pcm->bits_per_frame; a->addr = buf;
} a->first = pcm->bits_per_sample * channel;
snd_pcm_areas_copy(areas, offset, buf_areas, 0, a->step = pcm->bits_per_frame;
channels, frames, pcm->setup.format.sfmt); }
snd_pcm_areas_copy(areas, offset, buf_areas, 0,
channels, frames, pcm->setup.format.sfmt);
} else
buf = snd_pcm_channel_area_addr(areas, offset);
r = write(file->fd, buf, bytes); r = write(file->fd, buf, bytes);
assert(r == (ssize_t)bytes); assert(r == (ssize_t)bytes);
} }
@ -219,7 +223,7 @@ static ssize_t snd_pcm_file_mmap_forward(snd_pcm_t *pcm, size_t size)
size_t cont = pcm->setup.buffer_size - ofs; size_t cont = pcm->setup.buffer_size - ofs;
if (cont < frames) if (cont < frames)
frames = cont; frames = cont;
snd_pcm_file_write_areas(pcm, pcm->mmap_areas, ofs, frames); snd_pcm_file_write_areas(pcm, snd_pcm_mmap_areas(file->slave), ofs, frames);
ofs += frames; ofs += frames;
if (ofs == pcm->setup.buffer_size) if (ofs == pcm->setup.buffer_size)
ofs = 0; ofs = 0;
@ -237,19 +241,31 @@ static ssize_t snd_pcm_file_avail_update(snd_pcm_t *pcm)
static int snd_pcm_file_mmap_status(snd_pcm_t *pcm) static int snd_pcm_file_mmap_status(snd_pcm_t *pcm)
{ {
snd_pcm_file_t *file = pcm->private; snd_pcm_file_t *file = pcm->private;
return snd_pcm_mmap_status(file->slave, &pcm->mmap_status); int err = snd_pcm_mmap_status(file->slave, &pcm->mmap_status);
if (err < 0)
return err;
pcm->mmap_status = file->slave->mmap_status;
return 0;
} }
static int snd_pcm_file_mmap_control(snd_pcm_t *pcm) static int snd_pcm_file_mmap_control(snd_pcm_t *pcm)
{ {
snd_pcm_file_t *file = pcm->private; snd_pcm_file_t *file = pcm->private;
return snd_pcm_mmap_control(file->slave, &pcm->mmap_control); int err = snd_pcm_mmap_control(file->slave, &pcm->mmap_control);
if (err < 0)
return err;
pcm->mmap_control = file->slave->mmap_control;
return 0;
} }
static int snd_pcm_file_mmap_data(snd_pcm_t *pcm) static int snd_pcm_file_mmap_data(snd_pcm_t *pcm)
{ {
snd_pcm_file_t *file = pcm->private; snd_pcm_file_t *file = pcm->private;
return snd_pcm_mmap_data(file->slave, &pcm->mmap_data); int err = snd_pcm_mmap_data(file->slave, &pcm->mmap_data);
if (err < 0)
return err;
pcm->mmap_data = file->slave->mmap_data;
return 0;
} }
static int snd_pcm_file_munmap_status(snd_pcm_t *pcm) static int snd_pcm_file_munmap_status(snd_pcm_t *pcm)

36
src/pcm/pcm_hw.c
View file

@ -137,16 +137,19 @@ static int snd_pcm_hw_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t * se
return -errno; return -errno;
if (hw->mmap_emulation) { if (hw->mmap_emulation) {
if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) { if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) {
setup->area.addr = pcm->mmap_data; setup->running_area.addr = pcm->mmap_data;
setup->area.first = setup->channel * pcm->bits_per_sample; setup->running_area.first = setup->channel * pcm->bits_per_sample;
setup->area.step = pcm->bits_per_frame; setup->running_area.step = pcm->bits_per_frame;
} else { } else {
setup->area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8; setup->running_area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8;
setup->area.first = 0; setup->running_area.first = 0;
setup->area.step = pcm->bits_per_sample; setup->running_area.step = pcm->bits_per_sample;
} }
} else setup->stopped_area = setup->running_area;
setup->area.addr = (char *)pcm->mmap_data + (long)setup->area.addr; } else {
setup->running_area.addr = (char *)pcm->mmap_data + (long)setup->running_area.addr;
setup->stopped_area.addr = setup->running_area.addr;
}
return 0; return 0;
} }
@ -220,18 +223,18 @@ static int snd_pcm_hw_pause(snd_pcm_t *pcm, int enable)
static ssize_t snd_pcm_hw_rewind(snd_pcm_t *pcm, size_t frames) static ssize_t snd_pcm_hw_rewind(snd_pcm_t *pcm, size_t frames)
{ {
ssize_t used; ssize_t hw_avail;
if (pcm->setup.xrun_mode == SND_PCM_XRUN_ASAP) { if (pcm->setup.xrun_mode == SND_PCM_XRUN_ASAP) {
ssize_t d; ssize_t d;
int err = snd_pcm_hw_delay(pcm, &d); int err = snd_pcm_hw_delay(pcm, &d);
if (err < 0) if (err < 0)
return 0; return 0;
} }
used = pcm->setup.buffer_size - snd_pcm_mmap_avail(pcm); hw_avail = snd_pcm_mmap_hw_avail(pcm);
if (used <= 0) if (hw_avail <= 0)
return 0; return 0;
if (frames > (size_t)used) if (frames > (size_t)hw_avail)
frames = used; frames = hw_avail;
snd_pcm_mmap_appl_backward(pcm, frames); snd_pcm_mmap_appl_backward(pcm, frames);
return frames; return frames;
} }
@ -339,7 +342,7 @@ static int snd_pcm_hw_mmap_data(snd_pcm_t *pcm)
static int snd_pcm_hw_munmap_status(snd_pcm_t *pcm) static int snd_pcm_hw_munmap_status(snd_pcm_t *pcm)
{ {
if (munmap(pcm->mmap_status, sizeof(*pcm->mmap_status)) < 0) if (munmap((void*)pcm->mmap_status, sizeof(*pcm->mmap_status)) < 0)
return -errno; return -errno;
return 0; return 0;
} }
@ -377,7 +380,8 @@ static ssize_t snd_pcm_hw_avail_update(snd_pcm_t *pcm)
int fd = hw->fd; int fd = hw->fd;
size_t avail; size_t avail;
ssize_t err; ssize_t err;
if (pcm->setup.ready_mode == SND_PCM_READY_ASAP) { if (pcm->setup.ready_mode == SND_PCM_READY_ASAP ||
pcm->setup.xrun_mode == SND_PCM_XRUN_ASAP) {
ssize_t d; ssize_t d;
int err = ioctl(fd, SND_PCM_IOCTL_DELAY, &d); int err = ioctl(fd, SND_PCM_IOCTL_DELAY, &d);
if (err < 0) if (err < 0)
@ -395,6 +399,8 @@ static ssize_t snd_pcm_hw_avail_update(snd_pcm_t *pcm)
return err; return err;
} }
} }
if (avail >= pcm->setup.buffer_size)
return -EPIPE;
return avail; return avail;
} }

4
src/pcm/pcm_linear.c
View file

@ -179,7 +179,7 @@ static ssize_t snd_pcm_linear_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer);
linear_transfer(areas, offset, linear_transfer(areas, offset,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
frames, pcm->setup.format.channels, linear->conv_idx); frames, pcm->setup.format.channels, linear->conv_idx);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);
if (err < 0) if (err < 0)
@ -212,7 +212,7 @@ static ssize_t snd_pcm_linear_read_areas(snd_pcm_t *pcm,
assert(size > 0); assert(size > 0);
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer);
linear_transfer(slave->mmap_areas, snd_pcm_mmap_offset(slave), linear_transfer(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
areas, offset, areas, offset,
frames, pcm->setup.format.channels, linear->conv_idx); frames, pcm->setup.format.channels, linear->conv_idx);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);

56
src/pcm/pcm_local.h
View file

@ -73,10 +73,11 @@ struct snd_pcm {
snd_pcm_setup_t setup; snd_pcm_setup_t setup;
size_t bits_per_sample; size_t bits_per_sample;
size_t bits_per_frame; size_t bits_per_frame;
snd_pcm_mmap_status_t *mmap_status; volatile snd_pcm_mmap_status_t *mmap_status;
snd_pcm_mmap_control_t *mmap_control; snd_pcm_mmap_control_t *mmap_control;
void *mmap_data; void *mmap_data;
snd_pcm_channel_area_t *mmap_areas; snd_pcm_channel_area_t *running_areas;
snd_pcm_channel_area_t *stopped_areas;
struct snd_pcm_ops *ops; struct snd_pcm_ops *ops;
struct snd_pcm_fast_ops *fast_ops; struct snd_pcm_fast_ops *fast_ops;
snd_pcm_t *op_arg; snd_pcm_t *op_arg;
@ -88,7 +89,7 @@ int snd_pcm_init(snd_pcm_t *pcm);
void snd_pcm_areas_from_buf(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void *buf); void snd_pcm_areas_from_buf(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void *buf);
void snd_pcm_areas_from_bufs(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void **bufs); void snd_pcm_areas_from_bufs(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas, void **bufs);
int snd_pcm_mmap_status(snd_pcm_t *pcm, snd_pcm_mmap_status_t **status); int snd_pcm_mmap_status(snd_pcm_t *pcm, volatile snd_pcm_mmap_status_t **status);
int snd_pcm_mmap_control(snd_pcm_t *pcm, snd_pcm_mmap_control_t **control); int snd_pcm_mmap_control(snd_pcm_t *pcm, snd_pcm_mmap_control_t **control);
int snd_pcm_mmap_data(snd_pcm_t *pcm, void **buffer); int snd_pcm_mmap_data(snd_pcm_t *pcm, void **buffer);
int snd_pcm_munmap_status(snd_pcm_t *pcm); int snd_pcm_munmap_status(snd_pcm_t *pcm);
@ -101,7 +102,6 @@ void snd_pcm_mmap_appl_forward(snd_pcm_t *pcm, size_t frames);
void snd_pcm_mmap_hw_backward(snd_pcm_t *pcm, size_t frames); void snd_pcm_mmap_hw_backward(snd_pcm_t *pcm, size_t frames);
void snd_pcm_mmap_hw_forward(snd_pcm_t *pcm, size_t frames); void snd_pcm_mmap_hw_forward(snd_pcm_t *pcm, size_t frames);
size_t snd_pcm_mmap_hw_offset(snd_pcm_t *pcm); size_t snd_pcm_mmap_hw_offset(snd_pcm_t *pcm);
size_t snd_pcm_mmap_avail(snd_pcm_t *pcm);
size_t snd_pcm_mmap_playback_xfer(snd_pcm_t *pcm, size_t frames); size_t snd_pcm_mmap_playback_xfer(snd_pcm_t *pcm, size_t frames);
size_t snd_pcm_mmap_capture_xfer(snd_pcm_t *pcm, size_t frames); size_t snd_pcm_mmap_capture_xfer(snd_pcm_t *pcm, size_t frames);
@ -137,6 +137,54 @@ static inline size_t snd_pcm_mmap_capture_avail(snd_pcm_t *pcm)
return avail; return avail;
} }
static inline size_t snd_pcm_mmap_avail(snd_pcm_t *pcm)
{
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
return snd_pcm_mmap_playback_avail(pcm);
else
return snd_pcm_mmap_capture_avail(pcm);
return 0;
}
static inline ssize_t snd_pcm_mmap_playback_hw_avail(snd_pcm_t *pcm)
{
ssize_t avail;
avail = pcm->mmap_status->hw_ptr + pcm->setup.buffer_size - pcm->mmap_control->appl_ptr;
if (avail < 0)
avail += pcm->setup.boundary;
return pcm->setup.buffer_size - avail;
}
static inline ssize_t snd_pcm_mmap_capture_hw_avail(snd_pcm_t *pcm)
{
ssize_t avail;
avail = pcm->mmap_status->hw_ptr - pcm->mmap_control->appl_ptr;
if (avail < 0)
avail += pcm->setup.boundary;
return pcm->setup.buffer_size - avail;
}
static inline ssize_t snd_pcm_mmap_hw_avail(snd_pcm_t *pcm)
{
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
return snd_pcm_mmap_playback_hw_avail(pcm);
else
return snd_pcm_mmap_capture_hw_avail(pcm);
return 0;
}
#define snd_pcm_mmap_playback_delay snd_pcm_mmap_playback_hw_avail
#define snd_pcm_mmap_capture_delay snd_pcm_mmap_capture_avail
static inline ssize_t snd_pcm_mmap_delay(snd_pcm_t *pcm)
{
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
return snd_pcm_mmap_playback_delay(pcm);
else
return snd_pcm_mmap_capture_delay(pcm);
return 0;
}
static inline void *snd_pcm_channel_area_addr(snd_pcm_channel_area_t *area, size_t offset) static inline void *snd_pcm_channel_area_addr(snd_pcm_channel_area_t *area, size_t offset)
{ {
size_t bitofs = area->first + area->step * offset; size_t bitofs = area->first + area->step * offset;

94
src/pcm/pcm_mmap.c
View file

@ -25,15 +25,13 @@
#include <sys/poll.h> #include <sys/poll.h>
#include "pcm_local.h" #include "pcm_local.h"
size_t snd_pcm_mmap_avail(snd_pcm_t *pcm) snd_pcm_channel_area_t *snd_pcm_mmap_areas(snd_pcm_t *pcm)
{ {
assert(pcm); int state = snd_pcm_state(pcm);
assert(pcm->mmap_status && pcm->mmap_control); if (state == SND_PCM_STATE_RUNNING)
if (pcm->stream == SND_PCM_STREAM_PLAYBACK) return pcm->running_areas;
return snd_pcm_mmap_playback_avail(pcm); else
else return pcm->stopped_areas;
return snd_pcm_mmap_capture_avail(pcm);
return 0;
} }
size_t snd_pcm_mmap_playback_xfer(snd_pcm_t *pcm, size_t frames) size_t snd_pcm_mmap_playback_xfer(snd_pcm_t *pcm, size_t frames)
@ -136,7 +134,7 @@ ssize_t snd_pcm_mmap_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(pcm, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(pcm, size - xfer);
snd_pcm_areas_copy(areas, offset, snd_pcm_areas_copy(areas, offset,
pcm->mmap_areas, snd_pcm_mmap_offset(pcm), snd_pcm_mmap_areas(pcm), snd_pcm_mmap_offset(pcm),
pcm->setup.format.channels, pcm->setup.format.channels,
frames, pcm->setup.format.sfmt); frames, pcm->setup.format.sfmt);
err = snd_pcm_mmap_forward(pcm, frames); err = snd_pcm_mmap_forward(pcm, frames);
@ -167,7 +165,7 @@ ssize_t snd_pcm_mmap_read_areas(snd_pcm_t *pcm,
xfer = 0; xfer = 0;
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(pcm, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(pcm, size - xfer);
snd_pcm_areas_copy(pcm->mmap_areas, snd_pcm_mmap_offset(pcm), snd_pcm_areas_copy(snd_pcm_mmap_areas(pcm), snd_pcm_mmap_offset(pcm),
areas, offset, areas, offset,
pcm->setup.format.channels, pcm->setup.format.channels,
frames, pcm->setup.format.sfmt); frames, pcm->setup.format.sfmt);
@ -218,18 +216,14 @@ ssize_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, size_t size)
snd_pcm_mmap_read_areas); snd_pcm_mmap_read_areas);
} }
int snd_pcm_mmap_status(snd_pcm_t *pcm, snd_pcm_mmap_status_t **status) int snd_pcm_mmap_status(snd_pcm_t *pcm, volatile snd_pcm_mmap_status_t **status)
{ {
int err; int err;
assert(pcm); assert(pcm);
if (pcm->mmap_status) { if (!pcm->mmap_status) {
if (status) if ((err = pcm->ops->mmap_status(pcm->op_arg)) < 0)
*status = pcm->mmap_status; return err;
return 0;
} }
if ((err = pcm->ops->mmap_status(pcm->op_arg)) < 0)
return err;
if (status) if (status)
*status = pcm->mmap_status; *status = pcm->mmap_status;
return 0; return 0;
@ -239,40 +233,44 @@ int snd_pcm_mmap_control(snd_pcm_t *pcm, snd_pcm_mmap_control_t **control)
{ {
int err; int err;
assert(pcm); assert(pcm);
if (pcm->mmap_control) { if (!pcm->mmap_control) {
if (control) if ((err = pcm->ops->mmap_control(pcm->op_arg)) < 0)
*control = pcm->mmap_control; return err;
return 0;
} }
if ((err = pcm->ops->mmap_control(pcm->op_arg)) < 0)
return err;
if (control) if (control)
*control = pcm->mmap_control; *control = pcm->mmap_control;
return 0; return 0;
} }
int snd_pcm_mmap_get_areas(snd_pcm_t *pcm, snd_pcm_channel_area_t *areas) int snd_pcm_mmap_get_areas(snd_pcm_t *pcm, snd_pcm_channel_area_t *stopped_areas, snd_pcm_channel_area_t *running_areas)
{ {
snd_pcm_channel_setup_t s; snd_pcm_channel_setup_t setup;
snd_pcm_channel_area_t *a, *ap; snd_pcm_channel_area_t *r, *rp, *s, *sp;
unsigned int channel; unsigned int channel;
int err; int err;
assert(pcm); assert(pcm);
assert(pcm->mmap_data); assert(pcm->mmap_data);
a = calloc(pcm->setup.format.channels, sizeof(*areas)); if (!pcm->running_areas) {
for (channel = 0, ap = a; channel < pcm->setup.format.channels; ++channel, ++ap) { r = calloc(pcm->setup.format.channels, sizeof(*r));
s.channel = channel; s = calloc(pcm->setup.format.channels, sizeof(*s));
err = snd_pcm_channel_setup(pcm, &s); for (channel = 0, rp = r, sp = s; channel < pcm->setup.format.channels; ++channel, ++rp, ++sp) {
if (err < 0) { setup.channel = channel;
free(a); err = snd_pcm_channel_setup(pcm, &setup);
return err; if (err < 0) {
free(r);
free(s);
return err;
}
*rp = setup.running_area;
*sp = setup.stopped_area;
} }
if (areas) pcm->running_areas = r;
areas[channel] = s.area; pcm->stopped_areas = s;
*ap = s.area;
} }
pcm->mmap_areas = a; if (running_areas)
memcpy(running_areas, pcm->running_areas, pcm->setup.format.channels * sizeof(*running_areas));
if (stopped_areas)
memcpy(stopped_areas, pcm->stopped_areas, pcm->setup.format.channels * sizeof(*stopped_areas));
return 0; return 0;
} }
@ -291,7 +289,7 @@ int snd_pcm_mmap_data(snd_pcm_t *pcm, void **data)
return err; return err;
if (data) if (data)
*data = pcm->mmap_data; *data = pcm->mmap_data;
err = snd_pcm_mmap_get_areas(pcm, NULL); err = snd_pcm_mmap_get_areas(pcm, NULL, NULL);
if (err < 0) if (err < 0)
return err; return err;
return 0; return 0;
@ -326,8 +324,10 @@ int snd_pcm_munmap_data(snd_pcm_t *pcm)
assert(pcm->mmap_data); assert(pcm->mmap_data);
if ((err = pcm->ops->munmap_data(pcm->op_arg)) < 0) if ((err = pcm->ops->munmap_data(pcm->op_arg)) < 0)
return err; return err;
free(pcm->mmap_areas); free(pcm->stopped_areas);
pcm->mmap_areas = 0; free(pcm->running_areas);
pcm->stopped_areas = 0;
pcm->running_areas = 0;
pcm->mmap_data = 0; pcm->mmap_data = 0;
return 0; return 0;
} }
@ -355,7 +355,7 @@ ssize_t snd_pcm_write_mmap(snd_pcm_t *pcm, size_t size)
if (cont < frames) if (cont < frames)
frames = cont; frames = cont;
if (pcm->setup.xfer_mode == SND_PCM_XFER_INTERLEAVED) { if (pcm->setup.xfer_mode == SND_PCM_XFER_INTERLEAVED) {
snd_pcm_channel_area_t *a = pcm->mmap_areas; snd_pcm_channel_area_t *a = snd_pcm_mmap_areas(pcm);
char *buf = snd_pcm_channel_area_addr(a, offset); char *buf = snd_pcm_channel_area_addr(a, offset);
assert(pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED); assert(pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED);
err = _snd_pcm_writei(pcm, buf, size); err = _snd_pcm_writei(pcm, buf, size);
@ -363,9 +363,10 @@ ssize_t snd_pcm_write_mmap(snd_pcm_t *pcm, size_t size)
size_t channels = pcm->setup.format.channels; size_t channels = pcm->setup.format.channels;
unsigned int c; unsigned int c;
void *bufs[channels]; void *bufs[channels];
snd_pcm_channel_area_t *areas = snd_pcm_mmap_areas(pcm);
assert(pcm->setup.mmap_shape == SND_PCM_MMAP_NONINTERLEAVED); assert(pcm->setup.mmap_shape == SND_PCM_MMAP_NONINTERLEAVED);
for (c = 0; c < channels; ++c) { for (c = 0; c < channels; ++c) {
snd_pcm_channel_area_t *a = &pcm->mmap_areas[c]; snd_pcm_channel_area_t *a = &areas[c];
bufs[c] = snd_pcm_channel_area_addr(a, offset); bufs[c] = snd_pcm_channel_area_addr(a, offset);
} }
err = _snd_pcm_writen(pcm, bufs, size); err = _snd_pcm_writen(pcm, bufs, size);
@ -391,7 +392,7 @@ ssize_t snd_pcm_read_mmap(snd_pcm_t *pcm, size_t size)
if (cont < frames) if (cont < frames)
frames = cont; frames = cont;
if (pcm->setup.xfer_mode == SND_PCM_XFER_INTERLEAVED) { if (pcm->setup.xfer_mode == SND_PCM_XFER_INTERLEAVED) {
snd_pcm_channel_area_t *a = pcm->mmap_areas; snd_pcm_channel_area_t *a = snd_pcm_mmap_areas(pcm);
char *buf = snd_pcm_channel_area_addr(a, offset); char *buf = snd_pcm_channel_area_addr(a, offset);
assert(pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED); assert(pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED);
err = _snd_pcm_readi(pcm, buf, size); err = _snd_pcm_readi(pcm, buf, size);
@ -399,9 +400,10 @@ ssize_t snd_pcm_read_mmap(snd_pcm_t *pcm, size_t size)
size_t channels = pcm->setup.format.channels; size_t channels = pcm->setup.format.channels;
unsigned int c; unsigned int c;
void *bufs[channels]; void *bufs[channels];
snd_pcm_channel_area_t *areas = snd_pcm_mmap_areas(pcm);
assert(pcm->setup.mmap_shape == SND_PCM_MMAP_NONINTERLEAVED); assert(pcm->setup.mmap_shape == SND_PCM_MMAP_NONINTERLEAVED);
for (c = 0; c < channels; ++c) { for (c = 0; c < channels; ++c) {
snd_pcm_channel_area_t *a = &pcm->mmap_areas[c]; snd_pcm_channel_area_t *a = &areas[c];
bufs[c] = snd_pcm_channel_area_addr(a, offset); bufs[c] = snd_pcm_channel_area_addr(a, offset);
} }
err = _snd_pcm_readn(pcm->fast_op_arg, bufs, size); err = _snd_pcm_readn(pcm->fast_op_arg, bufs, size);

4
src/pcm/pcm_mulaw.c
View file

@ -351,7 +351,7 @@ static ssize_t snd_pcm_mulaw_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer);
mulaw->func(areas, offset, mulaw->func(areas, offset,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
mulaw->getput_idx); mulaw->getput_idx);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);
@ -385,7 +385,7 @@ static ssize_t snd_pcm_mulaw_read_areas(snd_pcm_t *pcm,
assert(size > 0); assert(size > 0);
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer);
mulaw->func(slave->mmap_areas, snd_pcm_mmap_offset(slave), mulaw->func(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
areas, offset, areas, offset,
frames, pcm->setup.format.channels, frames, pcm->setup.format.channels,
mulaw->getput_idx); mulaw->getput_idx);

15
src/pcm/pcm_multi.c
View file

@ -165,9 +165,6 @@ static int snd_pcm_multi_params(snd_pcm_t *pcm, snd_pcm_params_t *params)
return err; return err;
} }
p.format.channels = multi->slaves[i].channels_count; p.format.channels = multi->slaves[i].channels_count;
#if 1
p.xrun_mode = SND_PCM_XRUN_NONE;
#endif
err = snd_pcm_params(slave, &p); err = snd_pcm_params(slave, &p);
if (err < 0) { if (err < 0) {
params->fail_mask = p.fail_mask; params->fail_mask = p.fail_mask;
@ -180,7 +177,7 @@ static int snd_pcm_multi_params(snd_pcm_t *pcm, snd_pcm_params_t *params)
snd_pcm_mmap_data(slave, NULL); snd_pcm_mmap_data(slave, NULL);
if (pcm->stream == SND_PCM_STREAM_PLAYBACK && if (pcm->stream == SND_PCM_STREAM_PLAYBACK &&
err == 0) err == 0)
snd_pcm_areas_silence(slave->mmap_areas, 0, slave->setup.format.channels, snd_pcm_areas_silence(snd_pcm_mmap_areas(slave), 0, slave->setup.format.channels,
slave->setup.buffer_size, slave->setup.format.sfmt); slave->setup.buffer_size, slave->setup.format.sfmt);
} }
if (err == 0) if (err == 0)
@ -368,11 +365,15 @@ static int snd_pcm_multi_mmap_data(snd_pcm_t *pcm)
return err; return err;
setup = &slave->setup; setup = &slave->setup;
if (pcm->stream == SND_PCM_STREAM_PLAYBACK) { if (pcm->stream == SND_PCM_STREAM_PLAYBACK) {
snd_pcm_channel_area_t areas[setup->format.channels]; snd_pcm_channel_area_t r[setup->format.channels];
err = snd_pcm_mmap_get_areas(slave, areas); snd_pcm_channel_area_t s[setup->format.channels];
err = snd_pcm_mmap_get_areas(slave, s, r);
if (err < 0) if (err < 0)
return err; return err;
err = snd_pcm_areas_silence(areas, 0, setup->format.channels, setup->buffer_size, setup->format.sfmt); err = snd_pcm_areas_silence(s, 0, setup->format.channels, setup->buffer_size, setup->format.sfmt);
if (err < 0)
return err;
err = snd_pcm_areas_silence(r, 0, setup->format.channels, setup->buffer_size, setup->format.sfmt);
if (err < 0) if (err < 0)
return err; return err;
} }

18
src/pcm/pcm_plug.c
View file

@ -595,19 +595,31 @@ static int snd_pcm_plug_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t *s
static int snd_pcm_plug_mmap_status(snd_pcm_t *pcm) static int snd_pcm_plug_mmap_status(snd_pcm_t *pcm)
{ {
snd_pcm_plug_t *plug = pcm->private; snd_pcm_plug_t *plug = pcm->private;
return snd_pcm_mmap_status(plug->slave, NULL); int err = snd_pcm_mmap_status(plug->slave, NULL);
if (err < 0)
return err;
pcm->mmap_status = plug->slave->mmap_status;
return 0;
} }
static int snd_pcm_plug_mmap_control(snd_pcm_t *pcm) static int snd_pcm_plug_mmap_control(snd_pcm_t *pcm)
{ {
snd_pcm_plug_t *plug = pcm->private; snd_pcm_plug_t *plug = pcm->private;
return snd_pcm_mmap_control(plug->slave, NULL); int err = snd_pcm_mmap_control(plug->slave, NULL);
if (err < 0)
return err;
pcm->mmap_control = plug->slave->mmap_control;
return 0;
} }
static int snd_pcm_plug_mmap_data(snd_pcm_t *pcm) static int snd_pcm_plug_mmap_data(snd_pcm_t *pcm)
{ {
snd_pcm_plug_t *plug = pcm->private; snd_pcm_plug_t *plug = pcm->private;
return snd_pcm_mmap_data(plug->slave, NULL); int err = snd_pcm_mmap_data(plug->slave, NULL);
if (err < 0)
return err;
pcm->mmap_data = plug->slave->mmap_data;
return 0;
} }
static int snd_pcm_plug_munmap_status(snd_pcm_t *pcm) static int snd_pcm_plug_munmap_status(snd_pcm_t *pcm)

27
src/pcm/pcm_plugin.c
View file

@ -65,14 +65,15 @@ int snd_pcm_plugin_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t * setup
if (err < 0) if (err < 0)
return err; return err;
if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) { if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) {
setup->area.addr = pcm->mmap_data; setup->running_area.addr = pcm->mmap_data;
setup->area.first = setup->channel * pcm->bits_per_sample; setup->running_area.first = setup->channel * pcm->bits_per_sample;
setup->area.step = pcm->bits_per_frame; setup->running_area.step = pcm->bits_per_frame;
} else { } else {
setup->area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8; setup->running_area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8;
setup->area.first = 0; setup->running_area.first = 0;
setup->area.step = pcm->bits_per_sample; setup->running_area.step = pcm->bits_per_sample;
} }
setup->stopped_area = setup->running_area;
return 0; return 0;
} }
@ -95,17 +96,13 @@ int snd_pcm_plugin_state(snd_pcm_t *pcm)
int snd_pcm_plugin_delay(snd_pcm_t *pcm, ssize_t *delayp) int snd_pcm_plugin_delay(snd_pcm_t *pcm, ssize_t *delayp)
{ {
snd_pcm_plugin_t *plugin = pcm->private; snd_pcm_plugin_t *plugin = pcm->private;
ssize_t sd, d; ssize_t sd;
int err = snd_pcm_delay(plugin->slave, &sd); int err = snd_pcm_delay(plugin->slave, &sd);
if (err < 0) if (err < 0)
return err; return err;
if (plugin->client_frames) if (plugin->client_frames)
sd = plugin->client_frames(pcm, sd); sd = plugin->client_frames(pcm, sd);
if (pcm->stream == SND_PCM_STREAM_PLAYBACK) *delayp = sd + snd_pcm_mmap_delay(pcm);
d = pcm->setup.buffer_size - snd_pcm_mmap_playback_avail(pcm);
else
d = snd_pcm_mmap_capture_avail(pcm);
*delayp = sd + d;
return 0; return 0;
} }
@ -152,7 +149,7 @@ int snd_pcm_plugin_pause(snd_pcm_t *pcm, int enable)
ssize_t snd_pcm_plugin_rewind(snd_pcm_t *pcm, size_t frames) ssize_t snd_pcm_plugin_rewind(snd_pcm_t *pcm, size_t frames)
{ {
snd_pcm_plugin_t *plugin = pcm->private; snd_pcm_plugin_t *plugin = pcm->private;
ssize_t n = pcm->setup.buffer_size - snd_pcm_mmap_avail(pcm); ssize_t n = snd_pcm_mmap_hw_avail(pcm);
assert(n >= 0); assert(n >= 0);
if (n > 0) { if (n > 0) {
if ((size_t)n > frames) if ((size_t)n > frames)
@ -248,7 +245,7 @@ ssize_t snd_pcm_plugin_mmap_forward(snd_pcm_t *pcm, size_t client_size)
size_t cont = pcm->setup.buffer_size - offset; size_t cont = pcm->setup.buffer_size - offset;
if (cont < client_frames) if (cont < client_frames)
client_frames = cont; client_frames = cont;
err = plugin->write(pcm, pcm->mmap_areas, offset, err = plugin->write(pcm, pcm->running_areas, offset,
client_frames, &slave_frames); client_frames, &slave_frames);
if (err < 0) if (err < 0)
break; break;
@ -286,7 +283,7 @@ ssize_t snd_pcm_plugin_avail_update(snd_pcm_t *pcm)
size_t cont = pcm->setup.buffer_size - offset; size_t cont = pcm->setup.buffer_size - offset;
if (cont < client_frames) if (cont < client_frames)
client_frames = cont; client_frames = cont;
err = plugin->read(pcm, pcm->mmap_areas, offset, err = plugin->read(pcm, pcm->running_areas, offset,
client_frames, &slave_frames); client_frames, &slave_frames);
if (err < 0) if (err < 0)
break; break;

4
src/pcm/pcm_rate.c
View file

@ -469,7 +469,7 @@ static ssize_t snd_pcm_rate_write_areas(snd_pcm_t *pcm,
src_frames = client_size - client_xfer; src_frames = client_size - client_xfer;
dst_frames = snd_pcm_mmap_playback_xfer(slave, slave_size - slave_xfer); dst_frames = snd_pcm_mmap_playback_xfer(slave, slave_size - slave_xfer);
src_frames = rate->func(areas, client_offset, src_frames, src_frames = rate->func(areas, client_offset, src_frames,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
&dst_frames, &dst_frames,
pcm->setup.format.channels, pcm->setup.format.channels,
rate->get_idx, rate->put_idx, rate->get_idx, rate->put_idx,
@ -514,7 +514,7 @@ static ssize_t snd_pcm_rate_read_areas(snd_pcm_t *pcm,
size_t src_frames, dst_frames; size_t src_frames, dst_frames;
dst_frames = client_size - client_xfer; dst_frames = client_size - client_xfer;
src_frames = snd_pcm_mmap_capture_xfer(slave, slave_size - slave_xfer); src_frames = snd_pcm_mmap_capture_xfer(slave, slave_size - slave_xfer);
src_frames = rate->func(slave->mmap_areas, snd_pcm_mmap_offset(slave), src_frames = rate->func(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
src_frames, src_frames,
areas, client_offset, &dst_frames, areas, client_offset, &dst_frames,
pcm->setup.format.channels, pcm->setup.format.channels,

17
src/pcm/pcm_route.c
View file

@ -572,7 +572,7 @@ static ssize_t snd_pcm_route_write_areas(snd_pcm_t *pcm,
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_playback_xfer(slave, size - xfer);
route_transfer(areas, offset, route_transfer(areas, offset,
slave->mmap_areas, snd_pcm_mmap_offset(slave), snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
frames, route->schannels, &route->params); frames, route->schannels, &route->params);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);
if (err < 0) if (err < 0)
@ -600,14 +600,15 @@ static int snd_pcm_route_channel_setup(snd_pcm_t *pcm, snd_pcm_channel_setup_t *
return err; return err;
#endif #endif
if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) { if (pcm->setup.mmap_shape == SND_PCM_MMAP_INTERLEAVED) {
setup->area.addr = pcm->mmap_data; setup->running_area.addr = pcm->mmap_data;
setup->area.first = setup->channel * pcm->bits_per_sample; setup->running_area.first = setup->channel * pcm->bits_per_sample;
setup->area.step = pcm->bits_per_frame; setup->running_area.step = pcm->bits_per_frame;
} else { } else {
setup->area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8; setup->running_area.addr = pcm->mmap_data + setup->channel * pcm->setup.buffer_size * pcm->bits_per_sample / 8;
setup->area.first = 0; setup->running_area.first = 0;
setup->area.step = pcm->bits_per_sample; setup->running_area.step = pcm->bits_per_sample;
} }
setup->stopped_area = setup->running_area;
return 0; return 0;
} }
@ -626,7 +627,7 @@ static ssize_t snd_pcm_route_read_areas(snd_pcm_t *pcm,
assert(size > 0); assert(size > 0);
while (xfer < size) { while (xfer < size) {
size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer); size_t frames = snd_pcm_mmap_capture_xfer(slave, size - xfer);
route_transfer(slave->mmap_areas, snd_pcm_mmap_offset(slave), route_transfer(snd_pcm_mmap_areas(slave), snd_pcm_mmap_offset(slave),
areas, offset, areas, offset,
frames, route->cchannels, &route->params); frames, route->cchannels, &route->params);
err = snd_pcm_mmap_forward(slave, frames); err = snd_pcm_mmap_forward(slave, frames);