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Removed snd_pcm_hwptr().

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Added snd_pcm_hwdiff() and snd_pcm_forward().
Returned the behaviour for snd_pcm_mmap_begin().
This commit is contained in:
Jaroslav Kysela 2003-02-22 17:19:02 +00:00
parent fbd99fdec0
commit 2dab1dfbc3
17 changed files with 327 additions and 246 deletions
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34
src/pcm/pcm_dmix.c
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@ -989,25 +989,6 @@ static int snd_pcm_dmix_hwsync(snd_pcm_t *pcm)
}
}
static int snd_pcm_dmix_hwptr(snd_pcm_t *pcm, snd_pcm_uframes_t *hwptr)
{
snd_pcm_dmix_t *dmix = pcm->private_data;
switch(dmix->state) {
case SNDRV_PCM_STATE_DRAINING:
case SNDRV_PCM_STATE_RUNNING:
case SNDRV_PCM_STATE_PREPARED:
case SNDRV_PCM_STATE_PAUSED:
case SNDRV_PCM_STATE_SUSPENDED:
*hwptr = *pcm->hw.ptr;
return 0;
case SNDRV_PCM_STATE_XRUN:
return -EPIPE;
default:
return -EBADFD;
}
}
static int snd_pcm_dmix_prepare(snd_pcm_t *pcm)
{
snd_pcm_dmix_t *dmix = pcm->private_data;
@ -1108,6 +1089,19 @@ static snd_pcm_sframes_t snd_pcm_dmix_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t f
return frames;
}
static snd_pcm_sframes_t snd_pcm_dmix_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
{
snd_pcm_sframes_t avail;
avail = snd_pcm_mmap_avail(pcm);
if (avail < 0)
return 0;
if (frames > avail)
frames = avail;
snd_pcm_mmap_appl_forward(pcm, frames);
return frames;
}
static int snd_pcm_dmix_resume(snd_pcm_t *pcm ATTRIBUTE_UNUSED)
{
// snd_pcm_dmix_t *dmix = pcm->private_data;
@ -1224,7 +1218,6 @@ static snd_pcm_fast_ops_t snd_pcm_dmix_fast_ops = {
status: snd_pcm_dmix_status,
state: snd_pcm_dmix_state,
hwsync: snd_pcm_dmix_hwsync,
hwptr: snd_pcm_dmix_hwptr,
delay: snd_pcm_dmix_delay,
prepare: snd_pcm_dmix_prepare,
reset: snd_pcm_dmix_reset,
@ -1233,6 +1226,7 @@ static snd_pcm_fast_ops_t snd_pcm_dmix_fast_ops = {
drain: snd_pcm_dmix_drain,
pause: snd_pcm_dmix_pause,
rewind: snd_pcm_dmix_rewind,
forward: snd_pcm_dmix_forward,
resume: snd_pcm_dmix_resume,
writei: snd_pcm_mmap_writei,
writen: snd_pcm_mmap_writen,