Disable VR Overlay GPU Acceleration

Dotnet/AppApi/AppApi.cs

@@ -208,17 +208,17 @@ namespace VRCX
 
         public void SetVR(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton, int overlayHand)
         {
-            VRCXVR.Instance.SetActive(active, hmdOverlay, wristOverlay, menuButton, overlayHand);
+            Program.VRCXVRInstance.SetActive(active, hmdOverlay, wristOverlay, menuButton, overlayHand);
         }
 
         public void RefreshVR()
         {
-            VRCXVR.Instance.Restart();
+            Program.VRCXVRInstance.Restart();
         }
 
         public void RestartVR()
         {
-            VRCXVR.Instance.Restart();
+            Program.VRCXVRInstance.Restart();
         }
 
         public void SetZoom(double zoomLevel)
@@ -355,18 +355,12 @@ namespace VRCX
 
         public void ExecuteVrFeedFunction(string function, string json)
         {
-            if (VRCXVR._wristOverlay == null) return;
-            if (VRCXVR._wristOverlay.IsLoading)
-                VRCXVR.Instance.Restart();
-            VRCXVR._wristOverlay.ExecuteScriptAsync($"$app.{function}", json);
+            Program.VRCXVRInstance.ExecuteVrFeedFunction(function, json);
         }
 
         public void ExecuteVrOverlayFunction(string function, string json)
         {
-            if (VRCXVR._hmdOverlay == null) return;
-            if (VRCXVR._hmdOverlay.IsLoading)
-                VRCXVR.Instance.Restart();
-            VRCXVR._hmdOverlay.ExecuteScriptAsync($"$app.{function}", json);
+            Program.VRCXVRInstance.ExecuteVrOverlayFunction(function, json);
         }
 
         /// <summary>

Dotnet/AppApi/AppApiVr.cs

@@ -47,7 +47,7 @@ namespace VRCX
         /// <returns>An array of arrays containing information about the connected VR devices.</returns>
         public string[][] GetVRDevices()
         {
-            return VRCXVR.Instance.GetDevices();
+            return Program.VRCXVRInstance.GetDevices();
         }
         
         /// <summary>

Dotnet/AppApi/GameHandler.cs

@@ -37,7 +37,7 @@ namespace VRCX
                 isSteamVRRunning = true;
             }
 
-            var isHmdAfk = VRCXVR.Instance.IsHmdAfk;
+            var isHmdAfk = Program.VRCXVRInstance.IsHmdAfk;
 
             // TODO: fix this throwing an exception for being called before the browser is ready. somehow it gets past the checks
             if (MainForm.Instance?.Browser != null && !MainForm.Instance.Browser.IsLoading && MainForm.Instance.Browser.CanExecuteJavascriptInMainFrame)

Dotnet/Overlay/OffScreenBrowserLegacy.cs

@@ -0,0 +1,206 @@
+// Copyright(c) 2019-2022 pypy, Natsumi and individual contributors.
+// All rights reserved.
+//
+// This work is licensed under the terms of the MIT license.
+// For a copy, see <https://opensource.org/licenses/MIT>.
+
+using CefSharp;
+using CefSharp.Enums;
+using CefSharp.OffScreen;
+using CefSharp.Structs;
+using SharpDX.Direct3D11;
+using System;
+using System.Runtime.InteropServices;
+using System.Threading;
+using Range = CefSharp.Structs.Range;
+
+namespace VRCX
+{
+    public class OffScreenBrowserLegacy : ChromiumWebBrowser, IRenderHandler
+    {
+        private readonly ReaderWriterLockSlim _paintBufferLock;
+        private GCHandle _paintBuffer;
+        private int _width;
+        private int _height;
+
+        public OffScreenBrowserLegacy(string address, int width, int height)
+            : base(
+                address,
+                new BrowserSettings()
+                {
+                    DefaultEncoding = "UTF-8"
+                }
+            )
+        {
+            _paintBufferLock = new ReaderWriterLockSlim();
+
+            Size = new System.Drawing.Size(width, height);
+            RenderHandler = this;
+
+            JavascriptBindings.ApplyVrJavascriptBindings(JavascriptObjectRepository);
+        }
+
+        public new void Dispose()
+        {
+            RenderHandler = null;
+            base.Dispose();
+
+            _paintBufferLock.EnterWriteLock();
+            try
+            {
+                if (_paintBuffer.IsAllocated == true)
+                {
+                    _paintBuffer.Free();
+                }
+            }
+            finally
+            {
+                _paintBufferLock.ExitWriteLock();
+            }
+
+            _paintBufferLock.Dispose();
+        }
+
+        public void RenderToTexture(Texture2D texture)
+        {
+            // Safeguard against uninitialized texture
+            if (texture == null)
+                return;
+            
+            _paintBufferLock.EnterReadLock();
+            try
+            {
+                if (_width > 0 &&
+                    _height > 0)
+                {
+                    var context = texture.Device.ImmediateContext;
+                    var dataBox = context.MapSubresource(
+                        texture,
+                        0,
+                        MapMode.WriteDiscard,
+                        MapFlags.None
+                    );
+                    if (dataBox.IsEmpty == false)
+                    {
+                        var sourcePtr = _paintBuffer.AddrOfPinnedObject();
+                        var destinationPtr = dataBox.DataPointer;
+                        var pitch = _width * 4;
+                        var rowPitch = dataBox.RowPitch;
+                        if (pitch == rowPitch)
+                        {
+                            WinApi.RtlCopyMemory(
+                                destinationPtr,
+                                sourcePtr,
+                                (uint)(_width * _height * 4)
+                            );
+                        }
+                        else
+                        {
+                            for (var y = _height; y > 0; --y)
+                            {
+                                WinApi.RtlCopyMemory(
+                                    destinationPtr,
+                                    sourcePtr,
+                                    (uint)pitch
+                                );
+                                sourcePtr += pitch;
+                                destinationPtr += rowPitch;
+                            }
+                        }
+                    }
+                    context.UnmapSubresource(texture, 0);
+                }
+            }
+            finally
+            {
+                _paintBufferLock.ExitReadLock();
+            }
+        }
+
+        ScreenInfo? IRenderHandler.GetScreenInfo()
+        {
+            return null;
+        }
+
+        bool IRenderHandler.GetScreenPoint(int viewX, int viewY, out int screenX, out int screenY)
+        {
+            screenX = viewX;
+            screenY = viewY;
+            return false;
+        }
+
+        Rect IRenderHandler.GetViewRect()
+        {
+            return new Rect(0, 0, Size.Width, Size.Height);
+        }
+
+        void IRenderHandler.OnAcceleratedPaint(PaintElementType type, Rect dirtyRect, AcceleratedPaintInfo paintInfo)
+        {
+            // NOT USED
+        }
+
+        void IRenderHandler.OnCursorChange(IntPtr cursor, CursorType type, CursorInfo customCursorInfo)
+        {
+        }
+
+        void IRenderHandler.OnImeCompositionRangeChanged(Range selectedRange, Rect[] characterBounds)
+        {
+        }
+
+        void IRenderHandler.OnPaint(PaintElementType type, Rect dirtyRect, IntPtr buffer, int width, int height)
+        {
+            if (type == PaintElementType.View)
+            {
+                _paintBufferLock.EnterWriteLock();
+                try
+                {
+                    if (_width != width ||
+                        _height != height)
+                    {
+                        _width = width;
+                        _height = height;
+                        if (_paintBuffer.IsAllocated == true)
+                        {
+                            _paintBuffer.Free();
+                        }
+                        _paintBuffer = GCHandle.Alloc(
+                            new byte[_width * _height * 4],
+                            GCHandleType.Pinned
+                        );
+                    }
+
+                    WinApi.RtlCopyMemory(
+                        _paintBuffer.AddrOfPinnedObject(),
+                        buffer,
+                        (uint)(width * height * 4)
+                    );
+                }
+                finally
+                {
+                    _paintBufferLock.ExitWriteLock();
+                }
+            }
+        }
+
+        void IRenderHandler.OnPopupShow(bool show)
+        {
+        }
+
+        void IRenderHandler.OnPopupSize(Rect rect)
+        {
+        }
+
+        void IRenderHandler.OnVirtualKeyboardRequested(IBrowser browser, TextInputMode inputMode)
+        {
+        }
+
+        bool IRenderHandler.StartDragging(IDragData dragData, DragOperationsMask mask, int x, int y)
+        {
+            return false;
+        }
+
+        void IRenderHandler.UpdateDragCursor(DragOperationsMask operation)
+        {
+        }
+    }
+}

Dotnet/Overlay/VRCXVR.cs

@@ -23,9 +23,9 @@ using Device4 = SharpDX.Direct3D11.Device4;
 
 namespace VRCX
 {
-    public class VRCXVR
+    public class VRCXVR : VRCXVRInterface
     {
-        public static VRCXVR Instance;
+        public static VRCXVRInterface Instance;
         private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
         private static readonly float[] _rotation = { 0f, 0f, 0f };
         private static readonly float[] _translation = { 0f, 0f, 0f };
@@ -33,8 +33,8 @@ namespace VRCX
         private static readonly float[] _translationRight = { 7f / 100f, -5f / 100f, 6f / 100f };
         private static readonly float[] _rotationLeft = { 90f * (float)(Math.PI / 180f), 90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f) };
         private static readonly float[] _rotationRight = { -90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f) };
-        public static OffScreenBrowser _wristOverlay;
-        public static OffScreenBrowser _hmdOverlay;
+        private static OffScreenBrowser _wristOverlay;
+        private static OffScreenBrowser _hmdOverlay;
         private readonly List<string[]> _deviceList;
         private readonly ReaderWriterLockSlim _deviceListLock;
         private bool _active;
@@ -74,12 +74,12 @@ namespace VRCX
 
         // NOTE
         // 메모리 릭 때문에 미리 생성해놓고 계속 사용함
-        internal void Init()
+        public override void Init()
         {
             _thread.Start();
         }
 
-        internal void Exit()
+        public override void Exit()
         {
             var thread = _thread;
             _thread = null;
@@ -87,7 +87,7 @@ namespace VRCX
             thread?.Join();
         }
 
-        public void Restart()
+        public override void Restart()
         {
             Exit();
             Instance = new VRCXVR();
@@ -327,7 +327,7 @@ namespace VRCX
             _device?.Dispose();
         }
 
-        public void SetActive(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton, int overlayHand)
+        public override void SetActive(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton, int overlayHand)
         {
             _active = active;
             _hmdOverlayActive = hmdOverlay;
@@ -352,13 +352,13 @@ namespace VRCX
             _wristOverlayWasActive = _wristOverlayActive;
         }
 
-        public void Refresh()
+        public override void Refresh()
         {
             _wristOverlay.Reload();
             _hmdOverlay.Reload();
         }
 
-        public string[][] GetDevices()
+        public override string[][] GetDevices()
         {
             _deviceListLock.EnterReadLock();
             try
@@ -371,7 +371,7 @@ namespace VRCX
             }
         }
 
-        internal void UpdateDevices(CVRSystem system, ref uint overlayIndex)
+        private void UpdateDevices(CVRSystem system, ref uint overlayIndex)
         {
             _deviceListLock.EnterWriteLock();
             try
@@ -833,5 +833,21 @@ namespace VRCX
 
             return err;
         }
+        
+        public override void ExecuteVrFeedFunction(string function, string json)
+        {
+            if (_wristOverlay == null) return;
+            if (_wristOverlay.IsLoading)
+                Restart();
+            _wristOverlay.ExecuteScriptAsync($"$app.{function}", json);
+        }
+
+        public override void ExecuteVrOverlayFunction(string function, string json)
+        {
+            if (_hmdOverlay == null) return;
+            if (_hmdOverlay.IsLoading)
+                Restart();
+            _hmdOverlay.ExecuteScriptAsync($"$app.{function}", json);
+        }
     }
 }

Dotnet/Overlay/VRCXVRInterface.cs

@@ -0,0 +1,15 @@
+namespace VRCX;
+
+public abstract class VRCXVRInterface
+{
+    public bool IsHmdAfk;
+    
+    public abstract void Init();
+    public abstract void Exit();
+    public abstract void Refresh();
+    public abstract void Restart();
+    public abstract void SetActive(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton, int overlayHand);
+    public abstract string[][] GetDevices();
+    public abstract void ExecuteVrFeedFunction(string function, string json);
+    public abstract void ExecuteVrOverlayFunction(string function, string json);
+}

Dotnet/Overlay/VRCXVRLegacy.cs

@@ -0,0 +1,781 @@
+// Copyright(c) 2019-2022 pypy, Natsumi and individual contributors.
+// All rights reserved.
+//
+// This work is licensed under the terms of the MIT license.
+// For a copy, see <https://opensource.org/licenses/MIT>.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading;
+using CefSharp;
+using SharpDX;
+using SharpDX.Direct3D11;
+using SharpDX.DXGI;
+using Valve.VR;
+using Device = SharpDX.Direct3D11.Device;
+
+namespace VRCX
+{
+    public class VRCXVRLegacy : VRCXVRInterface
+    {
+        public static VRCXVRInterface Instance;
+        private static NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
+        private static readonly float[] _rotation = { 0f, 0f, 0f };
+        private static readonly float[] _translation = { 0f, 0f, 0f };
+        private static readonly float[] _translationLeft = { -7f / 100f, -5f / 100f, 6f / 100f };
+        private static readonly float[] _translationRight = { 7f / 100f, -5f / 100f, 6f / 100f };
+        private static readonly float[] _rotationLeft = { 90f * (float)(Math.PI / 180f), 90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f) };
+        private static readonly float[] _rotationRight = { -90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f), -90f * (float)(Math.PI / 180f) };
+        private static OffScreenBrowserLegacy _wristOverlay;
+        private static OffScreenBrowserLegacy _hmdOverlay;
+        private readonly List<string[]> _deviceList;
+        private readonly ReaderWriterLockSlim _deviceListLock;
+        private bool _active;
+        private Device _device;
+        private bool _hmdOverlayActive;
+        private bool _menuButton;
+        private int _overlayHand;
+        private Texture2D _texture1;
+        private Texture2D _texture2;
+        private Thread _thread;
+        private bool _wristOverlayActive;
+        private DateTime _nextOverlayUpdate;
+        public bool IsHmdAfk { get; private set; }
+
+        static VRCXVRLegacy()
+        {
+            Instance = new VRCXVRLegacy();
+        }
+
+        public VRCXVRLegacy()
+        {
+            _deviceListLock = new ReaderWriterLockSlim();
+            _deviceList = new List<string[]>();
+            _thread = new Thread(ThreadLoop)
+            {
+                IsBackground = true
+            };
+        }
+
+        // NOTE
+        // 메모리 릭 때문에 미리 생성해놓고 계속 사용함
+        public override void Init()
+        {
+            _thread.Start();
+        }
+
+        public override void Exit()
+        {
+            var thread = _thread;
+            _thread = null;
+            thread?.Interrupt();
+            thread?.Join();
+        }
+
+        public override void Restart()
+        {
+            Exit();
+            Instance = new VRCXVRLegacy();
+            Instance.Init();
+            MainForm.Instance.Browser.ExecuteScriptAsync("console.log('VRCXVR Restarted');");
+        }
+
+        private void SetupTextures()
+        {
+            Factory f = new Factory1();
+            _device = new Device(f.GetAdapter(OpenVR.System.GetD3D9AdapterIndex()),
+                DeviceCreationFlags.SingleThreaded | DeviceCreationFlags.BgraSupport);
+
+            _texture1?.Dispose();
+            _texture1 = new Texture2D(
+                _device,
+                new Texture2DDescription
+                {
+                    Width = 512,
+                    Height = 512,
+                    MipLevels = 1,
+                    ArraySize = 1,
+                    Format = Format.B8G8R8A8_UNorm,
+                    SampleDescription = new SampleDescription(1, 0),
+                    Usage = ResourceUsage.Dynamic,
+                    BindFlags = BindFlags.ShaderResource,
+                    CpuAccessFlags = CpuAccessFlags.Write
+                }
+            );
+            
+            _texture2?.Dispose();
+            _texture2 = new Texture2D(
+                _device,
+                new Texture2DDescription
+                {
+                    Width = 1024,
+                    Height = 1024,
+                    MipLevels = 1,
+                    ArraySize = 1,
+                    Format = Format.B8G8R8A8_UNorm,
+                    SampleDescription = new SampleDescription(1, 0),
+                    Usage = ResourceUsage.Dynamic,
+                    BindFlags = BindFlags.ShaderResource,
+                    CpuAccessFlags = CpuAccessFlags.Write
+                }
+            );
+        }
+
+        private void ThreadLoop()
+        {
+            var active = false;
+            var e = new VREvent_t();
+            var nextInit = DateTime.MinValue;
+            var nextDeviceUpdate = DateTime.MinValue;
+            _nextOverlayUpdate = DateTime.MinValue;
+            var overlayIndex = OpenVR.k_unTrackedDeviceIndexInvalid;
+            var overlayVisible1 = false;
+            var overlayVisible2 = false;
+            var dashboardHandle = 0UL;
+            var overlayHandle1 = 0UL;
+            var overlayHandle2 = 0UL;
+            
+            _wristOverlay = new OffScreenBrowserLegacy(
+                "file://vrcx/vr.html?1",
+                512,
+                512
+            );
+
+            _hmdOverlay = new OffScreenBrowserLegacy(
+                "file://vrcx/vr.html?2",
+                1024,
+                1024
+            );
+
+            while (_thread != null)
+            {
+                if (_wristOverlayActive)
+                    _wristOverlay.RenderToTexture(_texture1);
+                if (_hmdOverlayActive)
+                    _hmdOverlay.RenderToTexture(_texture2);
+                try
+                {
+                    Thread.Sleep(32);
+                }
+                catch (ThreadInterruptedException)
+                {
+                }
+
+                if (_active)
+                {
+                    var system = OpenVR.System;
+                    if (system == null)
+                    {
+                        if (DateTime.UtcNow.CompareTo(nextInit) <= 0)
+                        {
+                            continue;
+                        }
+
+                        var _err = EVRInitError.None;
+                        system = OpenVR.Init(ref _err, EVRApplicationType.VRApplication_Background);
+                        nextInit = DateTime.UtcNow.AddSeconds(5);
+                        if (system == null)
+                        {
+                            continue;
+                        }
+
+                        active = true;
+                        SetupTextures();
+                    }
+
+                    while (system.PollNextEvent(ref e, (uint)Marshal.SizeOf(e)))
+                    {
+                        var type = (EVREventType)e.eventType;
+                        if (type == EVREventType.VREvent_Quit)
+                        {
+                            active = false;
+                            IsHmdAfk = false;
+                            OpenVR.Shutdown();
+                            nextInit = DateTime.UtcNow.AddSeconds(10);
+                            system = null;
+                            break;
+                        }
+                    }
+
+                    if (system != null)
+                    {
+                        if (DateTime.UtcNow.CompareTo(nextDeviceUpdate) >= 0)
+                        {
+                            overlayIndex = OpenVR.k_unTrackedDeviceIndexInvalid;
+                            UpdateDevices(system, ref overlayIndex);
+                            if (overlayIndex != OpenVR.k_unTrackedDeviceIndexInvalid)
+                            {
+                                _nextOverlayUpdate = DateTime.UtcNow.AddSeconds(10);
+                            }
+
+                            nextDeviceUpdate = DateTime.UtcNow.AddSeconds(0.1);
+                        }
+
+                        var overlay = OpenVR.Overlay;
+                        if (overlay != null)
+                        {
+                            var dashboardVisible = overlay.IsDashboardVisible();
+                            var err = ProcessDashboard(overlay, ref dashboardHandle, dashboardVisible);
+                            if (err != EVROverlayError.None &&
+                                dashboardHandle != 0)
+                            {
+                                overlay.DestroyOverlay(dashboardHandle);
+                                dashboardHandle = 0;
+                                logger.Error(err);
+                            }
+
+                            err = ProcessOverlay1(overlay, ref overlayHandle1, ref overlayVisible1, dashboardVisible, overlayIndex);
+                            if (err != EVROverlayError.None &&
+                                overlayHandle1 != 0)
+                            {
+                                overlay.DestroyOverlay(overlayHandle1);
+                                overlayHandle1 = 0;
+                                logger.Error(err);
+                            }
+
+                            err = ProcessOverlay2(overlay, ref overlayHandle2, ref overlayVisible2, dashboardVisible);
+                            if (err != EVROverlayError.None &&
+                                overlayHandle2 != 0)
+                            {
+                                overlay.DestroyOverlay(overlayHandle2);
+                                overlayHandle2 = 0;
+                                logger.Error(err);
+                            }
+                        }
+                    }
+                }
+                else if (active)
+                {
+                    active = false;
+                    IsHmdAfk = false;
+                    OpenVR.Shutdown();
+                    _deviceListLock.EnterWriteLock();
+                    try
+                    {
+                        _deviceList.Clear();
+                    }
+                    finally
+                    {
+                        _deviceListLock.ExitWriteLock();
+                    }
+                }
+            }
+
+            _hmdOverlay?.Dispose();
+            _wristOverlay?.Dispose();
+            _texture2?.Dispose();
+            _texture1?.Dispose();
+            _device?.Dispose();
+        }
+
+        public override void SetActive(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton, int overlayHand)
+        {
+            _active = active;
+            _hmdOverlayActive = hmdOverlay;
+            _wristOverlayActive = wristOverlay;
+            _menuButton = menuButton;
+            _overlayHand = overlayHand;
+        }
+
+        public override void Refresh()
+        {
+            _wristOverlay.Reload();
+            _hmdOverlay.Reload();
+        }
+
+        public override string[][] GetDevices()
+        {
+            _deviceListLock.EnterReadLock();
+            try
+            {
+                return _deviceList.ToArray();
+            }
+            finally
+            {
+                _deviceListLock.ExitReadLock();
+            }
+        }
+
+        private void UpdateDevices(CVRSystem system, ref uint overlayIndex)
+        {
+            _deviceListLock.EnterWriteLock();
+            try
+            {
+                _deviceList.Clear();
+            }
+            finally
+            {
+                _deviceListLock.ExitWriteLock();
+            }
+
+            var sb = new StringBuilder(256);
+            var state = new VRControllerState_t();
+            var poses = new TrackedDevicePose_t[OpenVR.k_unMaxTrackedDeviceCount];
+            system.GetDeviceToAbsoluteTrackingPose(ETrackingUniverseOrigin.TrackingUniverseStanding, 0, poses);
+            for (var i = 0u; i < OpenVR.k_unMaxTrackedDeviceCount; ++i)
+            {
+                var devClass = system.GetTrackedDeviceClass(i);
+                switch (devClass)
+                {
+                    case ETrackedDeviceClass.HMD:
+                        var success = system.GetControllerState(i, ref state, (uint)Marshal.SizeOf(state));
+                        if (!success)
+                            break; // this fails while SteamVR overlay is open
+                    
+                        var prox = state.ulButtonPressed & (1UL << ((int)EVRButtonId.k_EButton_ProximitySensor));
+                        var isHmdAfk = prox == 0;
+                        if (isHmdAfk != IsHmdAfk)
+                        {
+                            IsHmdAfk = isHmdAfk;
+                            AppApi.Instance.CheckGameRunning();
+                        }
+
+                        var headsetErr = ETrackedPropertyError.TrackedProp_Success;
+                        var headsetBatteryPercentage = system.GetFloatTrackedDeviceProperty(i, ETrackedDeviceProperty.Prop_DeviceBatteryPercentage_Float, ref headsetErr);
+                        if (headsetErr != ETrackedPropertyError.TrackedProp_Success)
+                        {
+                            // Headset has no battery, skip displaying it
+                            break;
+                        }
+
+                        var headset = new[]
+                        {
+                            "headset",
+                            system.IsTrackedDeviceConnected(i)
+                                ? "connected"
+                                : "disconnected",
+                            // Currently neither VD or SteamLink report charging state
+                            "discharging",
+                            (headsetBatteryPercentage * 100).ToString(),
+                            poses[i].eTrackingResult.ToString()
+                        };
+                        _deviceListLock.EnterWriteLock();
+                        try
+                        {
+                            _deviceList.Add(headset);
+                        }
+                        finally
+                        {
+                            _deviceListLock.ExitWriteLock();
+                        }
+
+                        break;
+                    case ETrackedDeviceClass.Controller:
+                    case ETrackedDeviceClass.GenericTracker:
+                    case ETrackedDeviceClass.TrackingReference:
+                    {
+                        var err = ETrackedPropertyError.TrackedProp_Success;
+                        var batteryPercentage = system.GetFloatTrackedDeviceProperty(i, ETrackedDeviceProperty.Prop_DeviceBatteryPercentage_Float, ref err);
+                        if (err != ETrackedPropertyError.TrackedProp_Success)
+                        {
+                            batteryPercentage = 1f;
+                        }
+
+                        err = ETrackedPropertyError.TrackedProp_Success;
+                        var isCharging = system.GetBoolTrackedDeviceProperty(i, ETrackedDeviceProperty.Prop_DeviceIsCharging_Bool, ref err);
+                        if (err != ETrackedPropertyError.TrackedProp_Success)
+                        {
+                            isCharging = false;
+                        }
+
+                        sb.Clear();
+                        system.GetStringTrackedDeviceProperty(i, ETrackedDeviceProperty.Prop_TrackingSystemName_String, sb, (uint)sb.Capacity, ref err);
+                        var isOculus = sb.ToString().IndexOf("oculus", StringComparison.OrdinalIgnoreCase) >= 0;
+                        // Oculus : B/Y, Bit 1, Mask 2
+                        // Oculus : A/X, Bit 7, Mask 128
+                        // Vive : Menu, Bit 1, Mask 2,
+                        // Vive : Grip, Bit 2, Mask 4
+                        var role = system.GetControllerRoleForTrackedDeviceIndex(i);
+                        if (role == ETrackedControllerRole.LeftHand || role == ETrackedControllerRole.RightHand)
+                        {
+                            if (_overlayHand == 0 ||
+                                (_overlayHand == 1 && role == ETrackedControllerRole.LeftHand) ||
+                                (_overlayHand == 2 && role == ETrackedControllerRole.RightHand))
+                            {
+                                if (system.GetControllerState(i, ref state, (uint)Marshal.SizeOf(state)) &&
+                                    (state.ulButtonPressed & (_menuButton ? 2u : isOculus ? 128u : 4u)) != 0)
+                                {
+                                    _nextOverlayUpdate = DateTime.MinValue;
+                                    if (role == ETrackedControllerRole.LeftHand)
+                                    {
+                                        Array.Copy(_translationLeft, _translation, 3);
+                                        Array.Copy(_rotationLeft, _rotation, 3);
+                                    }
+                                    else
+                                    {
+                                        Array.Copy(_translationRight, _translation, 3);
+                                        Array.Copy(_rotationRight, _rotation, 3);
+                                    }
+
+                                    overlayIndex = i;
+                                }
+                            }
+                        }
+
+                        var type = string.Empty;
+                        if (devClass == ETrackedDeviceClass.Controller)
+                        {
+                            if (role == ETrackedControllerRole.LeftHand)
+                            {
+                                type = "leftController";
+                            }
+                            else if (role == ETrackedControllerRole.RightHand)
+                            {
+                                type = "rightController";
+                            }
+                            else
+                            {
+                                type = "controller";
+                            }
+                        }
+                        else if (devClass == ETrackedDeviceClass.GenericTracker)
+                        {
+                            type = "tracker";
+                        }
+                        else if (devClass == ETrackedDeviceClass.TrackingReference)
+                        {
+                            type = "base";
+                        }
+
+                        var item = new[]
+                        {
+                            type,
+                            system.IsTrackedDeviceConnected(i)
+                                ? "connected"
+                                : "disconnected",
+                            isCharging
+                                ? "charging"
+                                : "discharging",
+                            (batteryPercentage * 100).ToString(),
+                            poses[i].eTrackingResult.ToString()
+                        };
+                        _deviceListLock.EnterWriteLock();
+                        try
+                        {
+                            _deviceList.Add(item);
+                        }
+                        finally
+                        {
+                            _deviceListLock.ExitWriteLock();
+                        }
+
+                        break;
+                    }
+                }
+            }
+        }
+
+        internal EVROverlayError ProcessDashboard(CVROverlay overlay, ref ulong dashboardHandle, bool dashboardVisible)
+        {
+            var err = EVROverlayError.None;
+
+            if (dashboardHandle == 0)
+            {
+                err = overlay.FindOverlay("VRCX", ref dashboardHandle);
+                if (err != EVROverlayError.None)
+                {
+                    if (err != EVROverlayError.UnknownOverlay)
+                    {
+                        return err;
+                    }
+
+                    ulong thumbnailHandle = 0;
+                    err = overlay.CreateDashboardOverlay("VRCX", "VRCX", ref dashboardHandle, ref thumbnailHandle);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    var iconPath = Path.Combine(Program.BaseDirectory, "VRCX.png");
+                    err = overlay.SetOverlayFromFile(thumbnailHandle, iconPath);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayWidthInMeters(dashboardHandle, 1.5f);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayInputMethod(dashboardHandle, VROverlayInputMethod.Mouse);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+                }
+            }
+
+            var e = new VREvent_t();
+
+            while (overlay.PollNextOverlayEvent(dashboardHandle, ref e, (uint)Marshal.SizeOf(e)))
+            {
+                var type = (EVREventType)e.eventType;
+                if (type == EVREventType.VREvent_MouseMove)
+                {
+                    var m = e.data.mouse;
+                    var s = _wristOverlay.Size;
+                    _wristOverlay.GetBrowserHost().SendMouseMoveEvent((int)(m.x * s.Width), s.Height - (int)(m.y * s.Height), false, CefEventFlags.None);
+                }
+                else if (type == EVREventType.VREvent_MouseButtonDown)
+                {
+                    var m = e.data.mouse;
+                    var s = _wristOverlay.Size;
+                    _wristOverlay.GetBrowserHost().SendMouseClickEvent((int)(m.x * s.Width), s.Height - (int)(m.y * s.Height), MouseButtonType.Left, false, 1, CefEventFlags.LeftMouseButton);
+                }
+                else if (type == EVREventType.VREvent_MouseButtonUp)
+                {
+                    var m = e.data.mouse;
+                    var s = _wristOverlay.Size;
+                    _wristOverlay.GetBrowserHost().SendMouseClickEvent((int)(m.x * s.Width), s.Height - (int)(m.y * s.Height), MouseButtonType.Left, true, 1, CefEventFlags.None);
+                }
+            }
+
+            if (dashboardVisible)
+            {
+                var texture = new Texture_t
+                {
+                    handle = _texture1.NativePointer
+                };
+                err = overlay.SetOverlayTexture(dashboardHandle, ref texture);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+            }
+
+            return err;
+        }
+
+        internal EVROverlayError ProcessOverlay1(CVROverlay overlay, ref ulong overlayHandle, ref bool overlayVisible, bool dashboardVisible, uint overlayIndex)
+        {
+            var err = EVROverlayError.None;
+
+            if (overlayHandle == 0)
+            {
+                err = overlay.FindOverlay("VRCX1", ref overlayHandle);
+                if (err != EVROverlayError.None)
+                {
+                    if (err != EVROverlayError.UnknownOverlay)
+                    {
+                        return err;
+                    }
+
+                    overlayVisible = false;
+                    err = overlay.CreateOverlay("VRCX1", "VRCX1", ref overlayHandle);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayAlpha(overlayHandle, 0.9f);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayWidthInMeters(overlayHandle, 1f);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayInputMethod(overlayHandle, VROverlayInputMethod.None);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+                }
+            }
+
+            if (overlayIndex != OpenVR.k_unTrackedDeviceIndexInvalid)
+            {
+                // http://www.opengl-tutorial.org/beginners-tutorials/tutorial-3-matrices
+                // Scaling-Rotation-Translation
+                var m = Matrix.Scaling(0.25f);
+                m *= Matrix.RotationX(_rotation[0]);
+                m *= Matrix.RotationY(_rotation[1]);
+                m *= Matrix.RotationZ(_rotation[2]);
+                m *= Matrix.Translation(_translation[0], _translation[1], _translation[2]);
+                var hm34 = new HmdMatrix34_t
+                {
+                    m0 = m.M11,
+                    m1 = m.M21,
+                    m2 = m.M31,
+                    m3 = m.M41,
+                    m4 = m.M12,
+                    m5 = m.M22,
+                    m6 = m.M32,
+                    m7 = m.M42,
+                    m8 = m.M13,
+                    m9 = m.M23,
+                    m10 = m.M33,
+                    m11 = m.M43
+                };
+                err = overlay.SetOverlayTransformTrackedDeviceRelative(overlayHandle, overlayIndex, ref hm34);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+            }
+
+            if (!dashboardVisible &&
+                DateTime.UtcNow.CompareTo(_nextOverlayUpdate) <= 0)
+            {
+                var texture = new Texture_t
+                {
+                    handle = _texture1.NativePointer
+                };
+                err = overlay.SetOverlayTexture(overlayHandle, ref texture);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+
+                if (!overlayVisible)
+                {
+                    err = overlay.ShowOverlay(overlayHandle);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    overlayVisible = true;
+                }
+            }
+            else if (overlayVisible)
+            {
+                err = overlay.HideOverlay(overlayHandle);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+
+                overlayVisible = false;
+            }
+
+            return err;
+        }
+
+        internal EVROverlayError ProcessOverlay2(CVROverlay overlay, ref ulong overlayHandle, ref bool overlayVisible, bool dashboardVisible)
+        {
+            var err = EVROverlayError.None;
+
+            if (overlayHandle == 0)
+            {
+                err = overlay.FindOverlay("VRCX2", ref overlayHandle);
+                if (err != EVROverlayError.None)
+                {
+                    if (err != EVROverlayError.UnknownOverlay)
+                    {
+                        return err;
+                    }
+
+                    overlayVisible = false;
+                    err = overlay.CreateOverlay("VRCX2", "VRCX2", ref overlayHandle);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayAlpha(overlayHandle, 0.9f);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayWidthInMeters(overlayHandle, 1f);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    err = overlay.SetOverlayInputMethod(overlayHandle, VROverlayInputMethod.None);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    var m = Matrix.Scaling(1f);
+                    m *= Matrix.Translation(0, -0.3f, -1.5f);
+                    var hm34 = new HmdMatrix34_t
+                    {
+                        m0 = m.M11,
+                        m1 = m.M21,
+                        m2 = m.M31,
+                        m3 = m.M41,
+                        m4 = m.M12,
+                        m5 = m.M22,
+                        m6 = m.M32,
+                        m7 = m.M42,
+                        m8 = m.M13,
+                        m9 = m.M23,
+                        m10 = m.M33,
+                        m11 = m.M43
+                    };
+                    err = overlay.SetOverlayTransformTrackedDeviceRelative(overlayHandle, OpenVR.k_unTrackedDeviceIndex_Hmd, ref hm34);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+                }
+            }
+
+            if (!dashboardVisible)
+            {
+                var texture = new Texture_t
+                {
+                    handle = _texture2.NativePointer
+                };
+                err = overlay.SetOverlayTexture(overlayHandle, ref texture);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+
+                if (!overlayVisible)
+                {
+                    err = overlay.ShowOverlay(overlayHandle);
+                    if (err != EVROverlayError.None)
+                    {
+                        return err;
+                    }
+
+                    overlayVisible = true;
+                }
+            }
+            else if (overlayVisible)
+            {
+                err = overlay.HideOverlay(overlayHandle);
+                if (err != EVROverlayError.None)
+                {
+                    return err;
+                }
+
+                overlayVisible = false;
+            }
+
+            return err;
+        }
+        
+        public override void ExecuteVrFeedFunction(string function, string json)
+        {
+            if (_wristOverlay == null) return;
+            if (_wristOverlay.IsLoading)
+                Restart();
+            _wristOverlay.ExecuteScriptAsync($"$app.{function}", json);
+        }
+
+        public override void ExecuteVrOverlayFunction(string function, string json)
+        {
+            if (_hmdOverlay == null) return;
+            if (_hmdOverlay.IsLoading)
+                Restart();
+            _hmdOverlay.ExecuteScriptAsync($"$app.{function}", json);
+        }
+    }
+}

Dotnet/Overlay/VRForm.cs

@@ -56,7 +56,7 @@ namespace VRCX
         {
             _browser1.ExecuteScriptAsync("location.reload()");
             _browser2.ExecuteScriptAsync("location.reload()");
-            VRCXVR.Instance.Refresh();
+            Program.VRCXVRInstance.Refresh();
         }
 
         private void button_devtools_Click(object sender, System.EventArgs e)

Dotnet/Program.cs

@@ -22,6 +22,7 @@ namespace VRCX
         public static string Version { get; private set; }
         public static bool LaunchDebug;
         private static readonly NLog.Logger logger = NLog.LogManager.GetLogger("VRCX");
+        public static VRCXVRInterface VRCXVRInstance { get; private set; }
 
         private static void SetProgramDirectories()
         {
@@ -187,14 +188,19 @@ namespace VRCX
             WebApi.Instance.Init();
             LogWatcher.Instance.Init();
             AutoAppLaunchManager.Instance.Init();
-
             CefService.Instance.Init();
             IPCServer.Instance.Init();
-            VRCXVR.Instance.Init();
+            
+            if (VRCXStorage.Instance.Get("VRCX_DisableVrOverlayGpuAcceleration") == "true")
+                VRCXVRInstance = new VRCXVRLegacy();
+            else
+                VRCXVRInstance = new VRCXVR();
+            VRCXVRInstance.Init();
+            
             Application.Run(new MainForm());
             logger.Info("{0} Exiting...", Version);
             WebApi.Instance.SaveCookies();
-            VRCXVR.Instance.Exit();
+            VRCXVRInstance.Exit();
             CefService.Instance.Exit();
 
             AutoAppLaunchManager.Instance.Exit();