private void PlatformSetupInstance(SoundEffectInstance inst)
{
// If the instance came from the pool then it could
// already have a valid voice assigned.
var voice = inst._voice;
if (voice != null)
{
// TODO: This really shouldn't be here. Instead we should fix the
// SoundEffectInstancePool to internally to look for a compatible
// instance or return a new instance without a voice.
//
// For now we do the same test that the pool should be doing here.
if (!ReferenceEquals(inst._format, _format))
{
if (inst._format.Encoding != _format.Encoding ||
inst._format.Channels != _format.Channels ||
inst._format.SampleRate != _format.SampleRate ||
inst._format.BitsPerSample != _format.BitsPerSample)
{
voice.DestroyVoice();
voice.Dispose();
voice = null;
}
}
}
if (voice == null && Device != null)
{
voice = new SourceVoice(Device, _format, VoiceFlags.UseFilter, XAudio2.MaximumFrequencyRatio);
inst._voice = voice;
inst.UpdateOutputMatrix(); // Ensure the output matrix is set for this new voice
}
inst._format = _format;
}