void Sound::Play3D(const AudioEmitter& audioEmitter, float volume)
{
auto& audioManager = AudioManager::GetInstance();
auto& voice = GetVoiceForPlayback();
voice.sourceVoice->SetVolume(volume);
audioManager.Calculate3DAudioForVoice(audioEmitter.GetEmitter(), voice.sourceVoice, m_WaveFormat.Format.nChannels, m_SubmixVoice);
PlayImpl(voice);
}
// called for background thread; changes state (since that can involve
// slow blocking calls) and updates the state (since the state is read
// frequently and querying the device is a bit slow)
bool ThreadIteration()
{
// fetch the current requested state and copy it to the current state
int nRequestedTrack;
int nOldTrack;
{
CriticalSectionLock lock(m_csTrack);
nOldTrack = m_nCurrentTrack;
nRequestedTrack = m_nQueuedTrack;
if (nRequestedTrack != trackEmpty)
m_nCurrentTrack = nRequestedTrack;
m_nQueuedTrack = trackEmpty;
}
// if there is a new state requested, make that change
if (nRequestedTrack != trackEmpty)
{
if (nRequestedTrack == trackStop)
StopImpl();
else
PlayImpl(nRequestedTrack);
}
// otherwise, just update the current state
else
{
if ((nOldTrack != trackStop) && (IsPlayingImpl() != S_OK))
{
CriticalSectionLock lock(m_csTrack);
m_nCurrentTrack = trackStop;
}
}
return true;
}
void Sound::Play()
{
PlayImpl(GetVoiceForPlayback());
}