feat: Add controller passthru option to GVR

Allows user to choose whether they want vibrations passed thru to the
controller.

Fixes #324

Author: qdot

Buttplug.Apps.GameVibrationRouter.GUI/MainWindow.xaml.cs

@@ -72,6 +72,7 @@ public MainWindow()
             ButtplugTab.SelectedDevicesChanged += OnSelectedDevicesChanged;
 
             _graphTab.MultiplierChanged += MultiplierChanged;
+            _graphTab.PassthruChanged += PassthruChanged;
 
             var config = new ButtplugConfig("Buttplug");
             ButtplugTab.GetAboutControl().CheckUpdate(config, "buttplug-csharp");
@@ -90,6 +91,11 @@ private void MultiplierChanged(object sender, double vibeMultiplier)
             _vibrationMultiplier = vibeMultiplier;
         }
 
+        private void PassthruChanged(object sender, bool shouldPassthru)
+        {
+            ButtplugGameVibrationRouterInterface._shouldPassthru = shouldPassthru;
+        }
+
         public void AddPoint(object o, ElapsedEventArgs e)
         {
             _graphTab.AddVibrationValue(_lastVibration.LeftMotorSpeed, _lastVibration.RightMotorSpeed);

Buttplug.Apps.GameVibrationRouter.GUI/VibeGraphTab.xaml

@@ -30,6 +30,7 @@
                     <TextBlock Grid.Column="1" VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding ElementName=multiplierSlider, Path=Value, StringFormat='x\{0:0.0\}'}" Height="16" Margin="15.333,0,14,0.333" Width="auto"></TextBlock>
                 </Grid>
             </GroupBox>
+            <CheckBox Name="PassthruCheckBox"  Grid.Row="1" Content="Pass Gamepad Rumble To Gamepad" IsChecked="True" HorizontalAlignment="Left" Margin="0,5,0,5" VerticalAlignment="Stretch" Checked="PassthruCheckBox_Changed" Unchecked="PassthruCheckBox_Changed" />
         </Grid>
         <wpf:CartesianChart Name="LowPowerChart" Grid.Row="1" Series="{Binding LowPowerSeriesCollection}" Background="Black" DisableAnimations="True"  Hoverable="False" DataTooltip="{x:Null}">
             <wpf:CartesianChart.AxisY>

Buttplug.Apps.GameVibrationRouter.GUI/VibeGraphTab.xaml.cs

@@ -24,6 +24,7 @@ public partial class VibeGraphTab : UserControl
         private readonly ChartValues<double> LowPowerValues;
         private readonly ChartValues<double> HighPowerValues;
         public event EventHandler<double> MultiplierChanged;
+        public event EventHandler<bool> PassthruChanged;
 
         public VibeGraphTab()
         {
@@ -84,7 +85,11 @@ public void AddVibrationValue(double aLowPower, double aHighPower)
                 // Usually means we're shutting down. noop.
             }
         }
-        
+
+        private void PassthruCheckBox_Changed(object aSender, RoutedEventArgs aArgs)
+        {
+            PassthruChanged?.Invoke(this, PassthruCheckBox.IsChecked.Value);
+        }
 
         private void multiplierSlider_ValueChanged(object aSender, System.Windows.RoutedPropertyChangedEventArgs<double> aArgs)
         {

Buttplug.Apps.GameVibrationRouter.Interface/ButtplugGameVibrationRouterInterface.cs

@@ -37,11 +37,13 @@ public class ButtplugGameVibrationRouterInterface : MarshalByRefObject
         private static bool _shouldStop;
 
         private Timer _exitTimer = new Timer();
-        private bool _hasPinged = false;
+        public static bool _shouldPassthru = true;
+        private bool _hasPinged;
         public ButtplugGameVibrationRouterInterface()
         {
             // Every time we create a new instance, reset the static stopping variable.
             _shouldStop = false;
+            _shouldPassthru = true;
             // Check 4 times a second
             _exitTimer.Interval = 250;
             _exitTimer.Enabled = true;
@@ -59,6 +61,11 @@ private void OnTimerElapsed(object aObj, EventArgs aEventArgs)
             _hasPinged = false;
         }
 
+        public bool ShouldPassthru()
+        {
+            return _shouldPassthru;
+        }
+
         public void Exit()
         {
             VibrationExitReceived?.Invoke(this, true);

Buttplug.Apps.GameVibrationRouter.Payload/ButtplugGameVibrationRouterPayload.cs

@@ -12,6 +12,7 @@ public class ButtplugGameVibrationRouterPayload : IEntryPoint
         private readonly ButtplugGameVibrationRouterInterface _interface;
         private LocalHook _xinputSetStateHookObj;
         private Vibration _lastMessage = new Vibration {LeftMotorSpeed = 65535, RightMotorSpeed = 65535};
+        private static bool _shouldPassthru = true;
         private readonly Queue<Vibration> _messageQueue = new Queue<Vibration>();
         private static Exception _ex;
         private static ButtplugGameVibrationRouterPayload _instance;
@@ -72,7 +73,7 @@ public void Run(
                 while (_interface.Ping(RemoteHooking.GetCurrentProcessId(), ""))
                 {
                     Thread.Sleep(1);
-
+                    _shouldPassthru = _interface.ShouldPassthru();
                     if (_messageQueue.Count > 0)
                     {
                         lock (_messageQueue)
@@ -127,8 +128,11 @@ private static uint XInputSetStateHookFunc(int aGamePadIndex, ref Vibration aVib
             try
             {
                 // Always send to the controller first, then do what we need to.
-                XInputSetStateShim(aGamePadIndex, aVibrationRef);
-
+                if (_shouldPassthru)
+                {
+                    XInputSetStateShim(aGamePadIndex, aVibrationRef);
+                }
+               
                 ButtplugGameVibrationRouterPayload This = _instance;
                 // No reason to send duplicate packets.
                 if (This._lastMessage.LeftMotorSpeed == aVibrationRef.LeftMotorSpeed &&