mirrors/alsa-lib
1
0
Fork 0
mirror of https://github.com/alsa-project/alsa-lib.git synced 2025-11-01 22:58:49 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Moved ring buffer pointers and added a mechanism to transfer them via shm

Browse source
This commit is contained in:
Jaroslav Kysela 2002-04-23 15:51:29 +00:00
parent f063381430
commit c941c548f8
26 changed files with 469 additions and 171 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/pcm/pcm_plugin.c
View file

@ -211,8 +211,8 @@ int snd_pcm_plugin_prepare(snd_pcm_t *pcm)
snd_atomic_write_end(&plugin->watom);
return err;
}
plugin->hw_ptr = 0;
plugin->appl_ptr = 0;
*pcm->hw.ptr = 0;
*pcm->appl.ptr = 0;
snd_atomic_write_end(&plugin->watom);
if (plugin->init) {
err = plugin->init(pcm);
@ -232,8 +232,8 @@ static int snd_pcm_plugin_reset(snd_pcm_t *pcm)
snd_atomic_write_end(&plugin->watom);
return err;
}
plugin->hw_ptr = 0;
plugin->appl_ptr = 0;
*pcm->hw.ptr = 0;
*pcm->appl.ptr = 0;
snd_atomic_write_end(&plugin->watom);
if (plugin->init) {
err = plugin->init(pcm);
@ -504,12 +504,12 @@ snd_pcm_sframes_t snd_pcm_plugin_avail_update(snd_pcm_t *pcm)
pcm->access != SND_PCM_ACCESS_RW_NONINTERLEAVED)
goto _capture;
if (plugin->client_frames) {
plugin->hw_ptr = plugin->client_frames(pcm, *slave->hw_ptr);
*pcm->hw.ptr = plugin->client_frames(pcm, *slave->hw.ptr);
if (slave_size <= 0)
return slave_size;
return plugin->client_frames(pcm, slave_size);
} else {
plugin->hw_ptr = *slave->hw_ptr;
*pcm->hw.ptr = *slave->hw.ptr;
return slave_size;
}
_capture:
@ -599,8 +599,8 @@ int snd_pcm_plugin_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
snd_atomic_read_ok(&ratom);
return err;
}
status->appl_ptr = plugin->appl_ptr;
status->hw_ptr = plugin->hw_ptr;
status->appl_ptr = *pcm->appl.ptr;
status->hw_ptr = *pcm->hw.ptr;
status->avail = pcm->buffer_size;
snd_pcm_plugin_delay(pcm, &status->delay);
if (!snd_atomic_read_ok(&ratom)) {