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[ALSA] OSS PCM emulation - The 2nd final fix for SNDCTL_DSP_GETOPTR problem

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ALSA<-OSS emulation
The problem was negative/wrong result (info.bytes) in a specific condition at
playback startup.

Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Jaroslav Kysela 2005-05-31 16:59:39 +02:00
parent 98c7f2121d
commit 5ac0fab95c
1 changed files with 4 additions and 4 deletions
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8
sound/core/oss/pcm_oss.c
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@ -1537,13 +1537,13 @@ static int snd_pcm_oss_get_ptr(snd_pcm_oss_file_t *pcm_oss_file, int stream, str
snd_pcm_oss_simulate_fill(substream, delay);
info.bytes = snd_pcm_oss_bytes(substream, runtime->status->hw_ptr) & INT_MAX;
} else {
delay = snd_pcm_oss_bytes(substream, delay) + fixup;
info.blocks = delay / runtime->oss.period_bytes;
delay = snd_pcm_oss_bytes(substream, delay);
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (runtime->oss.bytes == 0)
delay = 0;
info.blocks = (runtime->oss.buffer_bytes - delay - fixup) / runtime->oss.period_bytes;
info.bytes = (runtime->oss.bytes - delay) & INT_MAX;
} else {
delay += fixup;
info.blocks = delay / runtime->oss.period_bytes;
info.bytes = (runtime->oss.bytes + delay) & INT_MAX;
}
}