1 files changed, 258 insertions, 0 deletions
diff --git a/Ryujinx.Ava/UI/Renderer/EmbeddedWindow.cs b/Ryujinx.Ava/UI/Renderer/EmbeddedWindow.cs
new file mode 100644
index 00000000..21d9d12e
--- /dev/null
+++ b/Ryujinx.Ava/UI/Renderer/EmbeddedWindow.cs
@@ -0,0 +1,258 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Input;
+using Avalonia.Platform;
+using Ryujinx.Ava.UI.Helpers;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Ui.Common.Configuration;
+using SPB.Graphics;
+using SPB.Platform;
+using SPB.Platform.GLX;
+using SPB.Platform.X11;
+using SPB.Windowing;
+using System;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using System.Threading.Tasks;
+using static Ryujinx.Ava.UI.Helpers.Win32NativeInterop;
+
+namespace Ryujinx.Ava.UI.Renderer
+{
+    public class EmbeddedWindow : NativeControlHost
+    {
+        private WindowProc _wndProcDelegate;
+        private string     _className;
+
+        protected GLXWindow X11Window { get; set; }
+
+        protected IntPtr WindowHandle { get; set; }
+        protected IntPtr X11Display   { get; set; }
+        protected IntPtr NsView       { get; set; }
+        protected IntPtr MetalLayer   { get; set; }
+
+        private UpdateBoundsCallbackDelegate _updateBoundsCallback;
+
+        public event EventHandler<IntPtr> WindowCreated;
+        public event EventHandler<Size>   SizeChanged;
+
+        public EmbeddedWindow()
+        {
+            this.GetObservable(BoundsProperty).Subscribe(StateChanged);
+
+            Initialized += OnNativeEmbeddedWindowCreated;
+        }
+
+        public virtual void OnWindowCreated() { }
+
+        protected virtual void OnWindowDestroyed() { }
+
+        protected virtual void OnWindowDestroying()
+        {
+            WindowHandle = IntPtr.Zero;
+            X11Display   = IntPtr.Zero;
+            NsView       = IntPtr.Zero;
+            MetalLayer   = IntPtr.Zero;
+        }
+
+        private void OnNativeEmbeddedWindowCreated(object sender, EventArgs e)
+        {
+            OnWindowCreated();
+
+            Task.Run(() =>
+            {
+                WindowCreated?.Invoke(this, WindowHandle);
+            });
+        }
+
+        private void StateChanged(Rect rect)
+        {
+            SizeChanged?.Invoke(this, rect.Size);
+            _updateBoundsCallback?.Invoke(rect);
+        }
+
+        protected override IPlatformHandle CreateNativeControlCore(IPlatformHandle control)
+        {
+            if (OperatingSystem.IsLinux())
+            {
+                return CreateLinux(control);
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                return CreateWin32(control);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                return CreateMacOs();
+            }
+
+            return base.CreateNativeControlCore(control);
+        }
+
+        protected override void DestroyNativeControlCore(IPlatformHandle control)
+        {
+            OnWindowDestroying();
+
+            if (OperatingSystem.IsLinux())
+            {
+                DestroyLinux();
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                DestroyWin32(control);
+            }
+            else if (OperatingSystem.IsMacOS())
+            {
+                DestroyMacOS();
+            }
+            else
+            {
+                base.DestroyNativeControlCore(control);
+            }
+
+            OnWindowDestroyed();
+        }
+
+        [SupportedOSPlatform("linux")]
+        protected virtual IPlatformHandle CreateLinux(IPlatformHandle control)
+        {
+            if (ConfigurationState.Instance.Graphics.GraphicsBackend.Value == GraphicsBackend.Vulkan)
+            {
+                X11Window = new GLXWindow(new NativeHandle(X11.DefaultDisplay), new NativeHandle(control.Handle));
+            }
+            else
+            {
+                X11Window = PlatformHelper.CreateOpenGLWindow(FramebufferFormat.Default, 0, 0, 100, 100) as GLXWindow;
+            }
+
+            WindowHandle = X11Window.WindowHandle.RawHandle;
+            X11Display   = X11Window.DisplayHandle.RawHandle;
+
+            return new PlatformHandle(WindowHandle, "X11");
+        }
+
+        [SupportedOSPlatform("windows")]
+        IPlatformHandle CreateWin32(IPlatformHandle control)
+        {
+            _className = "NativeWindow-" + Guid.NewGuid();
+
+            _wndProcDelegate = delegate (IntPtr hWnd, WindowsMessages msg, IntPtr wParam, IntPtr lParam)
+            {
+                if (VisualRoot != null)
+                {
+                    Point   rootVisualPosition = this.TranslatePoint(new Point((long)lParam & 0xFFFF, (long)lParam >> 16 & 0xFFFF), VisualRoot).Value;
+                    Pointer pointer            = new(0, PointerType.Mouse, true);
+
+                    switch (msg)
+                    {
+                        case WindowsMessages.LBUTTONDOWN:
+                        case WindowsMessages.RBUTTONDOWN:
+                            {
+                                bool                   isLeft               = msg == WindowsMessages.LBUTTONDOWN;
+                                RawInputModifiers      pointerPointModifier = isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton;
+                                PointerPointProperties properties           = new(pointerPointModifier, isLeft ? PointerUpdateKind.LeftButtonPressed : PointerUpdateKind.RightButtonPressed);
+
+                                var evnt = new PointerPressedEventArgs(
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    properties,
+                                    KeyModifiers.None);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                        case WindowsMessages.LBUTTONUP:
+                        case WindowsMessages.RBUTTONUP:
+                            {
+                                bool                   isLeft               = msg == WindowsMessages.LBUTTONUP;
+                                RawInputModifiers      pointerPointModifier = isLeft ? RawInputModifiers.LeftMouseButton : RawInputModifiers.RightMouseButton;
+                                PointerPointProperties properties           = new(pointerPointModifier, isLeft ? PointerUpdateKind.LeftButtonReleased : PointerUpdateKind.RightButtonReleased);
+
+                                var evnt = new PointerReleasedEventArgs(
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    properties,
+                                    KeyModifiers.None,
+                                    isLeft ? MouseButton.Left : MouseButton.Right);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                        case WindowsMessages.MOUSEMOVE:
+                            {
+                                var evnt = new PointerEventArgs(
+                                    PointerMovedEvent,
+                                    this,
+                                    pointer,
+                                    VisualRoot,
+                                    rootVisualPosition,
+                                    (ulong)Environment.TickCount64,
+                                    new PointerPointProperties(RawInputModifiers.None, PointerUpdateKind.Other),
+                                    KeyModifiers.None);
+
+                                RaiseEvent(evnt);
+
+                                break;
+                            }
+                    }
+                }
+
+                return DefWindowProc(hWnd, msg, wParam, lParam);
+            };
+
+            WNDCLASSEX wndClassEx = new()
+            {
+                cbSize        = Marshal.SizeOf<WNDCLASSEX>(),
+                hInstance     = GetModuleHandle(null),
+                lpfnWndProc   = Marshal.GetFunctionPointerForDelegate(_wndProcDelegate),
+                style         = ClassStyles.CS_OWNDC,
+                lpszClassName = Marshal.StringToHGlobalUni(_className),
+                hCursor       = CreateArrowCursor()
+            };
+
+            RegisterClassEx(ref wndClassEx);
+
+            WindowHandle = CreateWindowEx(0, _className, "NativeWindow", WindowStyles.WS_CHILD, 0, 0, 640, 480, control.Handle, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
+
+            Marshal.FreeHGlobal(wndClassEx.lpszClassName);
+
+            return new PlatformHandle(WindowHandle, "HWND");
+        }
+
+        [SupportedOSPlatform("macos")]
+        IPlatformHandle CreateMacOs()
+        {
+            MetalLayer = MetalHelper.GetMetalLayer(out IntPtr nsView, out _updateBoundsCallback);
+
+            NsView = nsView;
+
+            return new PlatformHandle(nsView, "NSView");
+        }
+
+        [SupportedOSPlatform("Linux")]
+        void DestroyLinux()
+        {
+            X11Window?.Dispose();
+        }
+
+        [SupportedOSPlatform("windows")]
+        void DestroyWin32(IPlatformHandle handle)
+        {
+            DestroyWindow(handle.Handle);
+            UnregisterClass(_className, GetModuleHandle(null));
+        }
+
+        [SupportedOSPlatform("macos")]
+        void DestroyMacOS()
+        {
+            MetalHelper.DestroyMetalLayer(NsView, MetalLayer);
+        }
+    }
+}
+\ No newline at end of file