add processingStage input to SubmixVoice

src/Audio/AudioDevice.cs

@@ -105,7 +105,7 @@ namespace MoonWorks.Audio
 				return;
 			}
 
-			fauxMasteringVoice = new SubmixVoice(this, DeviceDetails.OutputFormat.Format.nChannels, DeviceDetails.OutputFormat.Format.nSamplesPerSec);
+			fauxMasteringVoice = new SubmixVoice(this, DeviceDetails.OutputFormat.Format.nChannels, DeviceDetails.OutputFormat.Format.nSamplesPerSec, int.MaxValue);
 
 			/* Init 3D Audio */
 

src/Audio/ReverbEffect.cs

@@ -8,7 +8,7 @@ namespace MoonWorks.Audio
 	/// </summary>
 	public unsafe class ReverbEffect : SubmixVoice
 	{
-		public ReverbEffect(AudioDevice audioDevice) : base(audioDevice, 1, audioDevice.DeviceDetails.OutputFormat.Format.nSamplesPerSec)
+		public ReverbEffect(AudioDevice audioDevice, uint processingStage) : base(audioDevice, 1, audioDevice.DeviceDetails.OutputFormat.Format.nSamplesPerSec, processingStage)
 		{
 			/* Init reverb */
 			IntPtr reverb;

src/Audio/SubmixVoice.cs

@@ -4,13 +4,16 @@ namespace MoonWorks.Audio
 {
 	/// <summary>
 	/// SourceVoices can send audio to a SubmixVoice for convenient effects processing.
+	/// Submixes process in order of processingStage, from lowest to highest.
+	/// Therefore submixes early in a chain should have a low processingStage, and later in the chain they should have a higher one.
 	/// </summary>
 	public class SubmixVoice : Voice
 	{
 		public SubmixVoice(
 			AudioDevice device,
 			uint sourceChannelCount,
-			uint sampleRate
+			uint sampleRate,
+			uint processingStage
 		) : base(device, sourceChannelCount, device.DeviceDetails.OutputFormat.Format.nChannels)
 		{
 			FAudio.FAudio_CreateSubmixVoice(
@@ -19,7 +22,7 @@ namespace MoonWorks.Audio
 				sourceChannelCount,
 				sampleRate,
 				FAudio.FAUDIO_VOICE_USEFILTER,
-				0,
+				processingStage,
 				IntPtr.Zero, // default sends to mastering voice
 				IntPtr.Zero
 			);