The attached patch:
- turns on blocking i/o, which should make ALSA write the entire
contents in a snd_pcm_writei call.
- fixes a bug setting the volume, unVolume / 100 == 0 meant that the
volume was always set to either 0 or 100%.
Index: audlinux_alsa.cpp
===================================================================
RCS file: /cvsroot/audio/device/platform/unix/audlinux_alsa.cpp,v
retrieving revision 1.4.6.1
diff -u -r1.4.6.1 audlinux_alsa.cpp
--- audlinux_alsa.cpp 9 Mar 2005 18:30:06 -0000 1.4.6.1
+++ audlinux_alsa.cpp 12 Sep 2005 17:53:23 -0000
@@ -173,7 +173,7 @@
if(err == 0)
{
- err = snd_pcm_nonblock(m_pAlsaPCMHandle, TRUE);
+ err = snd_pcm_nonblock(m_pAlsaPCMHandle, FALSE);
if(err < 0)
{
HXLOGL1 ( HXLOG_ADEV, "snd_pcm_nonblock: %s",
@@ -1232,7 +1232,7 @@
if(max_volume > min_volume)
{
- nRetVolume = (UINT16) (100 * volume / (max_volume - min_volume));
+ nRetVolume = (UINT16) (100 * ((double) volume / (max_volume - min_volume)));
}
}
}
@@ -1269,7 +1269,7 @@
&max_volume);
range = max_volume - min_volume;
- volume = (long) ((unVolume / 100) * range + min_volume);
+ volume = (long) (((double) unVolume / 100.0) * range + min_volume);
err = snd_mixer_selem_set_playback_volume( m_pAlsaMixerElem,
SND_MIXER_SCHN_FRONT_LEFT,
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