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VRCXVR.cs
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// 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 SharpDX;
using SharpDX.Direct3D;
using SharpDX.Direct3D11;
using SharpDX.DXGI;
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using Valve.VR;
using Device = SharpDX.Direct3D11.Device;
namespace VRCX
{
public class VRCXVR
{
public static readonly VRCXVR Instance;
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 readonly ReaderWriterLockSlim _deviceListLock;
private List<string[]> _deviceList;
private Thread _thread;
private Device _device;
private Texture2D _texture1;
private Texture2D _texture2;
public static OffScreenBrowser _browser1;
public static OffScreenBrowser _browser2;
private bool _active;
private bool _hmdOverlayActive;
private bool _wristOverlayActive;
private bool _menuButton;
static VRCXVR()
{
Instance = new VRCXVR();
}
public VRCXVR()
{
_deviceListLock = new ReaderWriterLockSlim();
_deviceList = new List<string[]>();
_thread = new Thread(ThreadLoop)
{
IsBackground = true
};
}
// NOTE
// 메모리 릭 때문에 미리 생성해놓고 계속 사용함
internal void Init()
{
_thread.Start();
}
internal void Exit()
{
var thread = _thread;
_thread = null;
thread.Interrupt();
thread.Join();
}
private void ThreadLoop()
{
var active = false;
var e = new VREvent_t();
var nextInit = DateTime.MinValue;
var nextDeviceUpdate = DateTime.MinValue;
var nextOverlay = DateTime.MinValue;
var overlayIndex = OpenVR.k_unTrackedDeviceIndexInvalid;
var overlayVisible1 = false;
var overlayVisible2 = false;
var dashboardHandle = 0UL;
var overlayHandle1 = 0UL;
var overlayHandle2 = 0UL;
// REMOVE THIS
// nextOverlay = DateTime.MaxValue;
_device = new Device(
DriverType.Hardware,
DeviceCreationFlags.SingleThreaded | DeviceCreationFlags.BgraSupport
);
_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 = 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
}
);
_browser1 = new OffScreenBrowser(
Path.Combine(Program.BaseDirectory, "html/vr.html?1"),
512,
512
);
_browser2 = new OffScreenBrowser(
Path.Combine(Program.BaseDirectory, "html/vr.html?2"),
1024,
1024
);
while (_thread != null)
{
if (_wristOverlayActive)
_browser1.RenderToTexture(_texture1);
if (_hmdOverlayActive)
_browser2.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;
}
while (system.PollNextEvent(ref e, (uint)Marshal.SizeOf(e)))
{
var type = (EVREventType)e.eventType;
if (type == EVREventType.VREvent_Quit)
{
active = 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)
{
nextOverlay = 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;
}
err = ProcessOverlay1(overlay, ref overlayHandle1, ref overlayVisible1, dashboardVisible, overlayIndex, nextOverlay);
if (err != EVROverlayError.None &&
overlayHandle1 != 0)
{
overlay.DestroyOverlay(overlayHandle1);
overlayHandle1 = 0;
}
err = ProcessOverlay2(overlay, ref overlayHandle2, ref overlayVisible2, dashboardVisible);
if (err != EVROverlayError.None &&
overlayHandle2 != 0)
{
overlay.DestroyOverlay(overlayHandle2);
overlayHandle2 = 0;
}
}
}
}
else if (active)
{
active = false;
OpenVR.Shutdown();
_deviceListLock.EnterWriteLock();
try
{
_deviceList.Clear();
}
finally
{
_deviceListLock.ExitWriteLock();
}
}
}
_browser2.Dispose();
_browser1.Dispose();
_texture2.Dispose();
_texture1.Dispose();
_device.Dispose();
}
public void SetActive(bool active, bool hmdOverlay, bool wristOverlay, bool menuButton)
{
_active = active;
_hmdOverlayActive = hmdOverlay;
_wristOverlayActive = wristOverlay;
_menuButton = menuButton;
}
public void Refresh()
{
_browser1.ExecuteScriptAsync("location.reload()");
_browser2.ExecuteScriptAsync("location.reload()");
}
public string[][] GetDevices()
{
_deviceListLock.EnterReadLock();
try
{
return _deviceList.ToArray();
}
finally
{
_deviceListLock.ExitReadLock();
}
}
internal 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();
for (var i = 0u; i < OpenVR.k_unMaxTrackedDeviceCount; ++i)
{
var devClass = system.GetTrackedDeviceClass(i);
if (devClass == ETrackedDeviceClass.Controller ||
devClass == ETrackedDeviceClass.GenericTracker ||
devClass == 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;
}
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 (system.GetControllerState(i, ref state, (uint)Marshal.SizeOf(state)) &&
(state.ulButtonPressed & (_menuButton ? 2u : (isOculus ? 128u : 4u))) != 0)
{
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",
(batteryPercentage * 100).ToString()
};
_deviceListLock.EnterWriteLock();
try
{
_deviceList.Add(item);
}
finally
{
_deviceListLock.ExitWriteLock();
}
}
}
}
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 handle = 0;
err = overlay.CreateDashboardOverlay("VRCX", "VRCX", ref dashboardHandle, ref handle);
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 = _browser1.Size;
_browser1.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 = _browser1.Size;
_browser1.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 = _browser1.Size;
_browser1.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, DateTime nextOverlay)
{
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(nextOverlay) <= 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;
}
}
}