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Added slowptr options to direct plugins

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This commit is contained in:
Jaroslav Kysela 2004-01-20 15:29:39 +00:00
parent 852b0c6129
commit eeb5d6f0ac
4 changed files with 73 additions and 6 deletions
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26
src/pcm/pcm_dshare.c
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@ -141,6 +141,8 @@ static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
default:
break;
}
if (dshare->slowptr)
snd_pcm_hwsync(dshare->spcm);
old_slave_hw_ptr = dshare->slave_hw_ptr;
slave_hw_ptr = dshare->slave_hw_ptr = *dshare->spcm->hw.ptr;
diff = slave_hw_ptr - old_slave_hw_ptr;
@ -509,6 +511,8 @@ static snd_pcm_fast_ops_t snd_pcm_dshare_fast_ops = {
* \param ipc_key IPC key for semaphore and shared memory
* \param ipc_mode IPC permissions for semaphore and shared memory
* \param params Parameters for slave
* \param bindings Channel bindings
* \param slowptr Slow but more precise pointer updates
* \param root Configuration root
* \param sconf Slave configuration
* \param stream PCM Direction (stream)
@ -522,6 +526,7 @@ int snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
key_t ipc_key, mode_t ipc_perm,
struct slave_params *params,
snd_config_t *bindings,
int slowptr,
snd_config_t *root, snd_config_t *sconf,
snd_pcm_stream_t stream, int mode)
{
@ -590,6 +595,7 @@ int snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
pcm->fast_ops = &snd_pcm_dshare_fast_ops;
pcm->private_data = dshare;
dshare->state = SND_PCM_STATE_OPEN;
dshare->slowptr = slowptr;
if (first_instance) {
ret = snd_pcm_open_slave(&spcm, root, sconf, stream, mode);
@ -771,7 +777,7 @@ int _snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
snd_config_iterator_t i, next;
snd_config_t *slave = NULL, *bindings = NULL, *sconf;
struct slave_params params;
int bsize, psize, ipc_key_add_uid = 0;
int bsize, psize, ipc_key_add_uid = 0, slowptr = 0;
key_t ipc_key = 0;
mode_t ipc_perm = 0600;
@ -832,6 +838,22 @@ int _snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
bindings = n;
continue;
}
if (strcmp(id, "slowptr") == 0) {
char *tmp;
err = snd_config_get_ascii(n, &tmp);
if (err < 0) {
SNDERR("The field slowptr must be a boolean type");
return err;
}
err = snd_config_get_bool_ascii(tmp);
free(tmp);
if (err < 0) {
SNDERR("The field slowptr must be a boolean type");
return err;
}
slowptr = err;
continue;
}
SNDERR("Unknown field %s", id);
return -EINVAL;
}
@ -867,7 +889,7 @@ int _snd_pcm_dshare_open(snd_pcm_t **pcmp, const char *name,
params.period_size = psize;
params.buffer_size = bsize;
err = snd_pcm_dshare_open(pcmp, name, ipc_key, ipc_perm, &params, bindings, root, sconf, stream, mode);
err = snd_pcm_dshare_open(pcmp, name, ipc_key, ipc_perm, &params, bindings, slowptr, root, sconf, stream, mode);
if (err < 0)
snd_config_delete(sconf);
return err;