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volume: Clamp volume to PA_VOLUME_MAX

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This ensures that we always clamp the volume to PA_VOLUME_MAX. While
this currently has no effect, it will be required for making sure we
don't exceed PA_VOLUME_MAX when its value changes in the future.
This commit is contained in:
Arun Raghavan 2010-10-09 15:38:43 +05:30
parent 1d2ef7923d
commit 49101fc540
7 changed files with 24 additions and 19 deletions
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4
src/modules/module-waveout.c
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@ -359,8 +359,8 @@ static int sink_get_hw_volume_cb(pa_sink *s) {
if (waveOutGetVolume(u->hwo, &vol) != MMSYSERR_NOERROR)
return -1;
left = (vol & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME;
right = ((vol >> 16) & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME;
left = PA_CLAMP_VOLUME((vol & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME);
right = PA_CLAMP_VOLUME(((vol >> 16) & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME);
/* Windows supports > 2 channels, except for volume control */
if (s->hw_volume.channels > 2)