private void SetEmitterPosition(Vector3 vector3)
{
DspSettings dspSettings = new DspSettings(_sourceChannels, _destinationChannels);
_emitter.Position = vector3;
//just calculate the matrix... no doppler or anything else.
_x3daudio.X3DAudioCalculate(_listener, _emitter, CalculateFlags.Matrix, dspSettings);
_streamingSourceVoice.SetOutputMatrix(_masteringVoice, _sourceChannels, _destinationChannels, dspSettings.MatrixCoefficients);
}
/// <summary>
/// Calculates DSP settings with respect to 3D parameters.
/// </summary>
/// <param name="listener">Represents the point of reception.</param>
/// <param name="emitter">Represents the sound source.</param>
/// <param name="flags">Bitwise combination of <see cref="CalculateFlags" /> specifying which 3D parameters to calculate.</param>
/// <param name="settings">
/// Instance of the <see cref="DspSettings" /> class that receives the calculation results.
/// </param>
public unsafe void X3DAudioCalculate(Listener listener, Emitter emitter, CalculateFlags flags,
DspSettings settings)
{
if (settings == null)
{
throw new ArgumentNullException("settings");
}
if (listener == null)
{
throw new ArgumentNullException("listener");
}
if (emitter == null)
{
throw new ArgumentNullException("emitter");
}
if ((int)flags == 0)
{
throw new ArgumentOutOfRangeException("flags");
}
if (emitter.ChannelCount > 1 && emitter.ChannelAzimuths == null)
{
throw new ArgumentException("No ChannelAzimuths set for the specified emitter. The ChannelAzimuths property must not be null if the ChannelCount of the emitter is bigger than 1.");
}
DspSettings.DspSettingsNative nativeSettings = settings.NativeInstance;
Listener.ListenerNative nativeListener = listener.NativeInstance;
Emitter.EmitterNative nativeEmitter = emitter.NativeInstance;
try
{
#region setup listener
//setup listener:
Cone listenerCone = listener.Cone.HasValue ? listener.Cone.Value : default(Cone);
IntPtr listenerConePtr = listener.Cone.HasValue ? (IntPtr)(&listenerCone) : IntPtr.Zero;
nativeListener.ConePtr = listenerConePtr;
#endregion
#region setup emitter
//setup emitter
IntPtr channelAzimuthsPtr = IntPtr.Zero;
if (emitter.ChannelAzimuths != null && emitter.ChannelAzimuths.Length > 0 && emitter.ChannelCount > 0)
{
const int sizeOfFloat = sizeof(float);
int channelAzimuthsSize = sizeOfFloat *
Math.Min(emitter.ChannelCount, emitter.ChannelAzimuths.Length);
channelAzimuthsPtr = Marshal.AllocHGlobal(channelAzimuthsSize);
ILUtils.WriteToMemory(channelAzimuthsPtr, emitter.ChannelAzimuths, 0,
channelAzimuthsSize / sizeOfFloat);
}
Cone emitterCone = emitter.Cone.HasValue ? emitter.Cone.Value : default(Cone);
IntPtr emitterConePtr = emitter.Cone.HasValue ? (IntPtr)(&emitterCone) : IntPtr.Zero;
nativeEmitter.ChannelAzimuthsPtr = channelAzimuthsPtr;
nativeEmitter.ConePtr = emitterConePtr;
nativeEmitter.LFECurvePtr = CurveNative.AllocMemoryAndBuildCurve(emitter.LowFrequencyEffectCurve);
nativeEmitter.LPFDirectCurvePtr = CurveNative.AllocMemoryAndBuildCurve(emitter.LowPassFilterDirectCurve);
nativeEmitter.LPFReverbCurvePtr = CurveNative.AllocMemoryAndBuildCurve(emitter.LowPassFilterReverbCurve);
nativeEmitter.ReverbCurvePtr = CurveNative.AllocMemoryAndBuildCurve(emitter.ReverbCurve);
nativeEmitter.VolumeCurvePtr = CurveNative.AllocMemoryAndBuildCurve(emitter.VolumeCurve);
#endregion
#region setup settings
//setup settings
fixed(void *pmc = settings.MatrixCoefficients, pdt = settings.DelayTimes)
{
nativeSettings.MatrixCoefficientsPtr = new IntPtr(pmc);
nativeSettings.DelayTimesPtr = new IntPtr(pdt);
#endregion
fixed(void *p = &_handle)
{
X3DAudioCalculate(new IntPtr(p), (IntPtr)(&nativeListener),
(IntPtr)(&nativeEmitter), flags,
new IntPtr(&nativeSettings));
}
settings.NativeInstance = nativeSettings;
}
}
finally
{
nativeEmitter.FreeMemory();
}
}
