audio: remove unnecessary calls to put_buffer_in

This patch removes unnecessary calls to the pcm_ops function
put_buffer_in(). No audio backend needs this call if the
returned length of pcm_ops function get_buffer_in() is zero.

For the DirectSound backend this prevents a call to
dsound_unlock_in() without a preceding call to dsound_lock_in().
While Windows doesn't complain it seems wrong anyway.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Message-id: 20200920171729.15861-5-vr_qemu@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Volker Rümelin 2020-09-20 19:17:25 +02:00 committed by Gerd Hoffmann
parent b9896dc5be
commit ac221f45e3

View File

@ -1261,7 +1261,6 @@ static size_t audio_pcm_hw_run_in(HWVoiceIn *hw, size_t samples)
assert(size % hw->info.bytes_per_frame == 0);
if (size == 0) {
hw->pcm_ops->put_buffer_in(hw, buf, size);
break;
}
@ -1502,7 +1501,6 @@ size_t audio_generic_read(HWVoiceIn *hw, void *buf, size_t size)
void *src = hw->pcm_ops->get_buffer_in(hw, &src_size);
if (src_size == 0) {
hw->pcm_ops->put_buffer_in(hw, src, src_size);
break;
}