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mixer/alsa: move code to GetNormalizedVolume()

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This commit is contained in:
Max Kellermann 2021-08-06 17:53:24 +02:00
parent b0e9538855
commit ad6e303047
1 changed files with 9 additions and 2 deletions
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11
src/mixer/plugins/AlsaMixerPlugin.cxx
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@ -95,6 +95,13 @@ public:
void Close() noexcept override;
int GetVolume() override;
void SetVolume(unsigned volume) override;
private:
[[gnu::pure]]
double GetNormalizedVolume() const noexcept {
return get_normalized_playback_volume(elem,
SND_MIXER_SCHN_FRONT_LEFT);
}
};
static constexpr Domain alsa_mixer_domain("alsa_mixer");
@ -273,7 +280,7 @@ AlsaMixer::GetVolume()
throw FormatRuntimeError("snd_mixer_handle_events() failed: %s",
snd_strerror(err));
return lround(100 * get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT));
return lround(100 * GetNormalizedVolume());
}
void
@ -281,7 +288,7 @@ AlsaMixer::SetVolume(unsigned volume)
{
assert(handle != nullptr);
double cur = get_normalized_playback_volume(elem, SND_MIXER_SCHN_FRONT_LEFT);
double cur = GetNormalizedVolume();
int delta = volume - lround(100.*cur);
int err = set_normalized_playback_volume(elem, cur + 0.01*delta, delta);
if (err < 0)