mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2026-02-17 22:05:18 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Cleaned the mmap_commit implementations in plugins.

Browse source 
Added undo callbacks for snd_pcm_plugin based plugins.
  - helpers when mmap_commit proceed only a partial transfer
Fixes to avail_update implementation in pcm_hw.c.
This commit is contained in:
Jaroslav Kysela 2002-02-21 15:01:34 +00:00
parent 9b0eebbcb7
commit e128bf856e
22 changed files with 260 additions and 120 deletions
Download patch file Download diff file Expand all files Collapse all files

25
src/pcm/pcm_share.c
View file

@ -770,9 +770,9 @@ static snd_pcm_sframes_t snd_pcm_share_avail_update(snd_pcm_t *pcm)
}
/* Call it with mutex held */
static int _snd_pcm_share_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset ATTRIBUTE_UNUSED,
snd_pcm_uframes_t size)
static snd_pcm_sframes_t _snd_pcm_share_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset ATTRIBUTE_UNUSED,
snd_pcm_uframes_t size)
{
snd_pcm_share_t *share = pcm->private_data;
snd_pcm_share_slave_t *slave = share->slave;
@ -803,12 +803,12 @@ static int _snd_pcm_share_mmap_commit(snd_pcm_t *pcm,
}
_snd_pcm_share_update(pcm);
}
return 0;
return size;
}
static int snd_pcm_share_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset,
snd_pcm_uframes_t size)
static snd_pcm_sframes_t snd_pcm_share_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset,
snd_pcm_uframes_t size)
{
snd_pcm_share_t *share = pcm->private_data;
snd_pcm_share_slave_t *slave = share->slave;
@ -909,8 +909,15 @@ static int snd_pcm_share_start(snd_pcm_t *pcm)
xfer += frames;
}
snd_pcm_mmap_appl_forward(pcm, hw_avail);
if (slave->running_count == 0)
snd_pcm_mmap_commit(spcm, snd_pcm_mmap_offset(spcm), hw_avail);
if (slave->running_count == 0) {
snd_pcm_sframes_t res;
res = snd_pcm_mmap_commit(spcm, snd_pcm_mmap_offset(spcm), hw_avail);
if (res < 0) {
err = res;
goto _end;
}
assert((snd_pcm_uframes_t)res == hw_avail);
}
}
if (slave->running_count == 0) {
err = snd_pcm_start(spcm);