public virtual void Play()
{
if (State == SoundState.Playing)
{
return;
}
if (State == SoundState.Paused)
{
/* Just resume the existing handle */
FAudio.FAudioSourceVoice_Start(handle, 0, 0);
INTERNAL_state = SoundState.Playing;
return;
}
SoundEffect.FAudioContext dev = SoundEffect.Device();
/* Create handle */
FAudio.FAudioWaveFormatEx fmt = isDynamic ?
(this as DynamicSoundEffectInstance).format :
parentEffect.format;
FAudio.FAudio_CreateSourceVoice(
dev.Handle,
out handle,
ref fmt,
FAudio.FAUDIO_VOICE_USEFILTER,
FAudio.FAUDIO_DEFAULT_FREQ_RATIO,
IntPtr.Zero,
IntPtr.Zero,
IntPtr.Zero
);
if (handle == IntPtr.Zero)
{
return; /* What */
}
/* Apply current properties */
FAudio.FAudioVoice_SetVolume(handle, INTERNAL_volume, 0);
UpdatePitch();
if (is3D || Pan != 0.0f)
{
FAudio.FAudioVoice_SetOutputMatrix(
handle,
SoundEffect.Device().MasterVoice,
dspSettings.SrcChannelCount,
dspSettings.DstChannelCount,
dspSettings.pMatrixCoefficients,
0
);
}
/* For static effects, submit the buffer now */
if (isDynamic)
{
(this as DynamicSoundEffectInstance).QueueInitialBuffers();
}
else
{
if (IsLooped)
{
parentEffect.handle.LoopCount = 255;
parentEffect.handle.LoopBegin = parentEffect.loopStart;
parentEffect.handle.LoopLength = parentEffect.loopLength;
}
else
{
parentEffect.handle.LoopCount = 0;
parentEffect.handle.LoopBegin = 0;
parentEffect.handle.LoopLength = 0;
}
FAudio.FAudioSourceVoice_SubmitSourceBuffer(
handle,
ref parentEffect.handle,
IntPtr.Zero
);
}
/* Play, finally. */
FAudio.FAudioSourceVoice_Start(handle, 0, 0);
INTERNAL_state = SoundState.Playing;
hasStarted = true;
}