Ava UI: Refactor async usage (#5516)

* Remove `async void`

* Async LoadApplications

* Formatting and such

* Remove async from InstallUpdate

* Update src/Ryujinx.Ava/UI/Controls/ApplicationContextMenu.axaml.cs

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Cleanup LoadApplications()

* Cleanup

* Formatting

* Revert some stuff

* Cleanup

* Update src/Ryujinx.Ava/UI/ViewModels/MainWindowViewModel.cs

Co-authored-by: Ac_K <Acoustik666@gmail.com>

* Ack suggestions

* Whitespace

* Fix Peri suggestion

* Add missing trailing commas

* Remove redundant method override

* Remove Dispatcher.UIThread.InvokeAsync/Post where possible

---------

Co-authored-by: TSR Berry <20988865+TSRBerry@users.noreply.github.com>
Co-authored-by: Ac_K <Acoustik666@gmail.com>

Directory.Packages.props

@@ -49,4 +49,4 @@
     <PackageVersion Include="System.Management" Version="7.0.2" />
     <PackageVersion Include="UnicornEngine.Unicorn" Version="2.0.2-rc1-fb78016" />
   </ItemGroup>
-</Project>
+</Project>

src/Ryujinx.Ava/App.axaml.cs

@@ -104,7 +104,7 @@ namespace Ryujinx.Ava
                 {
                     "Light" => ThemeVariant.Light,
                     "Dark" => ThemeVariant.Dark,
-                    _ => ThemeVariant.Default
+                    _ => ThemeVariant.Default,
                 };
 
                 if (enableCustomTheme)

src/Ryujinx.Ava/AppHost.cs

@@ -3,7 +3,6 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Input;
-using Avalonia.Rendering;
 using Avalonia.Threading;
 using LibHac.Tools.FsSystem;
 using Ryujinx.Audio.Backends.Dummy;
@@ -21,6 +20,7 @@ using Ryujinx.Ava.UI.ViewModels;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.Logging;
 using Ryujinx.Common.SystemInterop;
 using Ryujinx.Graphics.GAL;
@@ -191,6 +191,7 @@ namespace Ryujinx.Ava
             ConfigurationState.Instance.Graphics.EnableColorSpacePassthrough.Event += UpdateColorSpacePassthrough;
 
             ConfigurationState.Instance.Multiplayer.LanInterfaceId.Event += UpdateLanInterfaceIdState;
+            ConfigurationState.Instance.Multiplayer.Mode.Event += UpdateMultiplayerModeState;
 
             _gpuCancellationTokenSource = new CancellationTokenSource();
             _gpuDoneEvent = new ManualResetEvent(false);
@@ -412,6 +413,11 @@ namespace Ryujinx.Ava
             Device.Configuration.MultiplayerLanInterfaceId = e.NewValue;
         }
 
+        private void UpdateMultiplayerModeState(object sender, ReactiveEventArgs<MultiplayerMode> e)
+        {
+            Device.Configuration.MultiplayerMode = e.NewValue;
+        }
+
         public void Stop()
         {
             _isActive = false;
@@ -782,7 +788,8 @@ namespace Ryujinx.Ava
                                                      ConfigurationState.Instance.Graphics.AspectRatio,
                                                      ConfigurationState.Instance.System.AudioVolume,
                                                      ConfigurationState.Instance.System.UseHypervisor,
-                                                     ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value);
+                                                     ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value,
+                                                     ConfigurationState.Instance.Multiplayer.Mode);
 
             Device = new Switch(configuration);
         }

src/Ryujinx.Ava/Assets/Locales/en_US.json

@@ -652,5 +652,8 @@
   "NetworkInterfaceDefault": "Default",
   "PackagingShaders": "Packaging Shaders",
   "AboutChangelogButton": "View Changelog on GitHub",
-  "AboutChangelogButtonTooltipMessage": "Click to open the changelog for this version in your default browser."
-}
+  "AboutChangelogButtonTooltipMessage": "Click to open the changelog for this version in your default browser.",
+  "SettingsTabNetworkMultiplayer": "Multiplayer",
+  "MultiplayerMode": "Mode:",
+  "MultiplayerModeTooltip": "Change multiplayer mode"
+}

src/Ryujinx.Ava/Common/ApplicationHelper.cs

@@ -15,7 +15,6 @@ using LibHac.Tools.FsSystem.NcaUtils;
 using Ryujinx.Ava.Common.Locale;
 using Ryujinx.Ava.UI.Controls;
 using Ryujinx.Ava.UI.Helpers;
-using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common.Logging;
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
@@ -36,11 +35,9 @@ namespace Ryujinx.Ava.Common
         private static HorizonClient _horizonClient;
         private static AccountManager _accountManager;
         private static VirtualFileSystem _virtualFileSystem;
-        private static StyleableWindow _owner;
 
-        public static void Initialize(VirtualFileSystem virtualFileSystem, AccountManager accountManager, HorizonClient horizonClient, StyleableWindow owner)
+        public static void Initialize(VirtualFileSystem virtualFileSystem, AccountManager accountManager, HorizonClient horizonClient)
         {
-            _owner = owner;
             _virtualFileSystem = virtualFileSystem;
             _horizonClient = horizonClient;
             _accountManager = accountManager;
@@ -148,7 +145,7 @@ namespace Ryujinx.Ava.Common
             var result = await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
                 Title = LocaleManager.Instance[LocaleKeys.FolderDialogExtractTitle],
-                AllowMultiple = false
+                AllowMultiple = false,
             });
 
             if (result.Count == 0)

src/Ryujinx.Ava/Input/AvaloniaKeyboardDriver.cs

@@ -1,6 +1,5 @@
 using Avalonia.Controls;
 using Avalonia.Input;
-using Avalonia.Interactivity;
 using Ryujinx.Ava.Common.Locale;
 using Ryujinx.Input;
 using System;

src/Ryujinx.Ava/Modules/Updater/Updater.cs

@@ -82,12 +82,9 @@ namespace Ryujinx.Modules
             {
                 Logger.Error?.Print(LogClass.Application, "Failed to convert the current Ryujinx version!");
 
-                Dispatcher.UIThread.Post(async () =>
-                {
-                    await ContentDialogHelper.CreateWarningDialog(
-                        LocaleManager.Instance[LocaleKeys.DialogUpdaterConvertFailedMessage],
-                        LocaleManager.Instance[LocaleKeys.DialogUpdaterCancelUpdateMessage]);
-                });
+                await ContentDialogHelper.CreateWarningDialog(
+                    LocaleManager.Instance[LocaleKeys.DialogUpdaterConvertFailedMessage],
+                    LocaleManager.Instance[LocaleKeys.DialogUpdaterCancelUpdateMessage]);
 
                 _running = false;
 
@@ -114,10 +111,9 @@ namespace Ryujinx.Modules
                         {
                             if (showVersionUpToDate)
                             {
-                                Dispatcher.UIThread.Post(async () =>
-                                {
-                                    await ContentDialogHelper.CreateUpdaterInfoDialog(LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage], "");
-                                });
+                                await ContentDialogHelper.CreateUpdaterInfoDialog(
+                                    LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage],
+                                    "");
                             }
 
                             _running = false;
@@ -134,10 +130,9 @@ namespace Ryujinx.Modules
                 {
                     if (showVersionUpToDate)
                     {
-                        Dispatcher.UIThread.Post(async () =>
-                        {
-                            await ContentDialogHelper.CreateUpdaterInfoDialog(LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage], "");
-                        });
+                        await ContentDialogHelper.CreateUpdaterInfoDialog(
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage],
+                            "");
                     }
 
                     _running = false;
@@ -149,10 +144,8 @@ namespace Ryujinx.Modules
             {
                 Logger.Error?.Print(LogClass.Application, exception.Message);
 
-                Dispatcher.UIThread.Post(async () =>
-                {
-                    await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdaterFailedToGetVersionMessage]);
-                });
+                await ContentDialogHelper.CreateErrorDialog(
+                    LocaleManager.Instance[LocaleKeys.DialogUpdaterFailedToGetVersionMessage]);
 
                 _running = false;
 
@@ -167,12 +160,9 @@ namespace Ryujinx.Modules
             {
                 Logger.Error?.Print(LogClass.Application, "Failed to convert the received Ryujinx version from Github!");
 
-                Dispatcher.UIThread.Post(async () =>
-                {
-                    await ContentDialogHelper.CreateWarningDialog(
-                        LocaleManager.Instance[LocaleKeys.DialogUpdaterConvertFailedGithubMessage],
-                        LocaleManager.Instance[LocaleKeys.DialogUpdaterCancelUpdateMessage]);
-                });
+                await ContentDialogHelper.CreateWarningDialog(
+                    LocaleManager.Instance[LocaleKeys.DialogUpdaterConvertFailedGithubMessage],
+                    LocaleManager.Instance[LocaleKeys.DialogUpdaterCancelUpdateMessage]);
 
                 _running = false;
 
@@ -183,10 +173,9 @@ namespace Ryujinx.Modules
             {
                 if (showVersionUpToDate)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateUpdaterInfoDialog(LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage], "");
-                    });
+                    await ContentDialogHelper.CreateUpdaterInfoDialog(
+                        LocaleManager.Instance[LocaleKeys.DialogUpdaterAlreadyOnLatestVersionMessage],
+                        "");
                 }
 
                 _running = false;
@@ -212,7 +201,7 @@ namespace Ryujinx.Modules
                 _buildSize = -1;
             }
 
-            Dispatcher.UIThread.Post(async () =>
+            await Dispatcher.UIThread.InvokeAsync(async () =>
             {
                 // Show a message asking the user if they want to update
                 var shouldUpdate = await ContentDialogHelper.CreateChoiceDialog(
@@ -222,7 +211,7 @@ namespace Ryujinx.Modules
 
                 if (shouldUpdate)
                 {
-                    UpdateRyujinx(mainWindow, _buildUrl);
+                    await UpdateRyujinx(mainWindow, _buildUrl);
                 }
                 else
                 {
@@ -241,7 +230,7 @@ namespace Ryujinx.Modules
             return result;
         }
 
-        private static async void UpdateRyujinx(Window parent, string downloadUrl)
+        private static async Task UpdateRyujinx(Window parent, string downloadUrl)
         {
             _updateSuccessful = false;
 
@@ -579,27 +568,24 @@ namespace Ryujinx.Modules
             }
         }
 
-        private static async void InstallUpdate(TaskDialog taskDialog, string updateFile)
+        private static void InstallUpdate(TaskDialog taskDialog, string updateFile)
         {
             // Extract Update
             taskDialog.SubHeader = LocaleManager.Instance[LocaleKeys.UpdaterExtracting];
             taskDialog.SetProgressBarState(0, TaskDialogProgressState.Normal);
 
-            await Task.Run(() =>
+            if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
             {
-                if (OperatingSystem.IsLinux() || OperatingSystem.IsMacOS())
-                {
-                    ExtractTarGzipFile(taskDialog, updateFile, _updateDir);
-                }
-                else if (OperatingSystem.IsWindows())
-                {
-                    ExtractZipFile(taskDialog, updateFile, _updateDir);
-                }
-                else
-                {
-                    throw new NotSupportedException();
-                }
-            });
+                ExtractTarGzipFile(taskDialog, updateFile, _updateDir);
+            }
+            else if (OperatingSystem.IsWindows())
+            {
+                ExtractZipFile(taskDialog, updateFile, _updateDir);
+            }
+            else
+            {
+                throw new NotSupportedException();
+            }
 
             // Delete downloaded zip
             File.Delete(updateFile);
@@ -613,36 +599,33 @@ namespace Ryujinx.Modules
             if (!OperatingSystem.IsMacOS())
             {
                 // Replace old files
-                await Task.Run(() =>
+                double count = 0;
+                foreach (string file in allFiles)
                 {
-                    double count = 0;
-                    foreach (string file in allFiles)
+                    count++;
+                    try
                     {
-                        count++;
-                        try
-                        {
-                            File.Move(file, file + ".ryuold");
+                        File.Move(file, file + ".ryuold");
 
-                            Dispatcher.UIThread.Post(() =>
-                            {
-                                taskDialog.SetProgressBarState(GetPercentage(count, allFiles.Count), TaskDialogProgressState.Normal);
-                            });
-                        }
-                        catch
+                        Dispatcher.UIThread.InvokeAsync(() =>
                         {
-                            Logger.Warning?.Print(LogClass.Application, LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.UpdaterRenameFailed, file));
-                        }
+                            taskDialog.SetProgressBarState(GetPercentage(count, allFiles.Count), TaskDialogProgressState.Normal);
+                        });
                     }
-
-                    Dispatcher.UIThread.Post(() =>
+                    catch
                     {
-                        taskDialog.SubHeader = LocaleManager.Instance[LocaleKeys.UpdaterAddingFiles];
-                        taskDialog.SetProgressBarState(0, TaskDialogProgressState.Normal);
-                    });
+                        Logger.Warning?.Print(LogClass.Application, LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.UpdaterRenameFailed, file));
+                    }
+                }
 
-                    MoveAllFilesOver(_updatePublishDir, _homeDir, taskDialog);
+                Dispatcher.UIThread.InvokeAsync(() =>
+                {
+                    taskDialog.SubHeader = LocaleManager.Instance[LocaleKeys.UpdaterAddingFiles];
+                    taskDialog.SetProgressBarState(0, TaskDialogProgressState.Normal);
                 });
 
+                MoveAllFilesOver(_updatePublishDir, _homeDir, taskDialog);
+
                 Directory.Delete(_updateDir, true);
             }
 
@@ -658,12 +641,11 @@ namespace Ryujinx.Modules
             {
                 if (showWarnings)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateWarningDialog(
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                        ContentDialogHelper.CreateWarningDialog(
                             LocaleManager.Instance[LocaleKeys.DialogUpdaterArchNotSupportedMessage],
-                            LocaleManager.Instance[LocaleKeys.DialogUpdaterArchNotSupportedSubMessage]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterArchNotSupportedSubMessage])
+                    );
                 }
 
                 return false;
@@ -673,12 +655,11 @@ namespace Ryujinx.Modules
             {
                 if (showWarnings)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateWarningDialog(
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                        ContentDialogHelper.CreateWarningDialog(
                             LocaleManager.Instance[LocaleKeys.DialogUpdaterNoInternetMessage],
-                            LocaleManager.Instance[LocaleKeys.DialogUpdaterNoInternetSubMessage]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterNoInternetSubMessage])
+                    );
                 }
 
                 return false;
@@ -688,12 +669,11 @@ namespace Ryujinx.Modules
             {
                 if (showWarnings)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateWarningDialog(
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                        ContentDialogHelper.CreateWarningDialog(
                             LocaleManager.Instance[LocaleKeys.DialogUpdaterDirtyBuildMessage],
-                            LocaleManager.Instance[LocaleKeys.DialogUpdaterDirtyBuildSubMessage]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterDirtyBuildSubMessage])
+                    );
                 }
 
                 return false;
@@ -705,21 +685,19 @@ namespace Ryujinx.Modules
             {
                 if (ReleaseInformation.IsFlatHubBuild())
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateWarningDialog(
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                        ContentDialogHelper.CreateWarningDialog(
                             LocaleManager.Instance[LocaleKeys.UpdaterDisabledWarningTitle],
-                            LocaleManager.Instance[LocaleKeys.DialogUpdaterFlatpakNotSupportedMessage]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterFlatpakNotSupportedMessage])
+                    );
                 }
                 else
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateWarningDialog(
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                        ContentDialogHelper.CreateWarningDialog(
                             LocaleManager.Instance[LocaleKeys.UpdaterDisabledWarningTitle],
-                            LocaleManager.Instance[LocaleKeys.DialogUpdaterDirtyBuildSubMessage]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogUpdaterDirtyBuildSubMessage])
+                    );
                 }
             }
 

src/Ryujinx.Ava/UI/Applet/AvaHostUiHandler.cs

@@ -106,7 +106,7 @@ namespace Ryujinx.Ava.UI.Applet
             bool error = false;
             string inputText = args.InitialText ?? "";
 
-            Dispatcher.UIThread.Post(async () =>
+            Dispatcher.UIThread.InvokeAsync(async () =>
             {
                 try
                 {
@@ -149,7 +149,7 @@ namespace Ryujinx.Ava.UI.Applet
 
             bool showDetails = false;
 
-            Dispatcher.UIThread.Post(async () =>
+            Dispatcher.UIThread.InvokeAsync(async () =>
             {
                 try
                 {

src/Ryujinx.Ava/UI/Controls/ApplicationContextMenu.axaml.cs

@@ -54,7 +54,7 @@ namespace Ryujinx.Ava.UI.Controls
         {
             if (sender is MenuItem { DataContext: MainWindowViewModel viewModel })
             {
-                OpenSaveDirectory(viewModel, SaveDataType.Account, userId: new UserId((ulong)viewModel.AccountManager.LastOpenedUser.UserId.High, (ulong)viewModel.AccountManager.LastOpenedUser.UserId.Low));
+                OpenSaveDirectory(viewModel, SaveDataType.Account, new UserId((ulong)viewModel.AccountManager.LastOpenedUser.UserId.High, (ulong)viewModel.AccountManager.LastOpenedUser.UserId.Low));
             }
         }
 
@@ -62,14 +62,14 @@ namespace Ryujinx.Ava.UI.Controls
         {
             var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
 
-            OpenSaveDirectory(viewModel, SaveDataType.Device, userId: default);
+            OpenSaveDirectory(viewModel, SaveDataType.Device, default);
         }
 
         public void OpenBcatSaveDirectory_Click(object sender, RoutedEventArgs args)
         {
             var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
 
-            OpenSaveDirectory(viewModel, SaveDataType.Bcat, userId: default);
+            OpenSaveDirectory(viewModel, SaveDataType.Bcat, default);
         }
 
         private static void OpenSaveDirectory(MainWindowViewModel viewModel, SaveDataType saveDataType, UserId userId)
@@ -158,11 +158,12 @@ namespace Ryujinx.Ava.UI.Controls
 
             if (viewModel?.SelectedApplication != null)
             {
-                UserResult result = await ContentDialogHelper.CreateConfirmationDialog(LocaleManager.Instance[LocaleKeys.DialogWarning],
-                                                                                       LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogPPTCDeletionMessage, viewModel.SelectedApplication.TitleName),
-                                                                                       LocaleManager.Instance[LocaleKeys.InputDialogYes],
-                                                                                       LocaleManager.Instance[LocaleKeys.InputDialogNo],
-                                                                                       LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
+                UserResult result = await ContentDialogHelper.CreateConfirmationDialog(
+                    LocaleManager.Instance[LocaleKeys.DialogWarning],
+                    LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogPPTCDeletionMessage, viewModel.SelectedApplication.TitleName),
+                    LocaleManager.Instance[LocaleKeys.InputDialogYes],
+                    LocaleManager.Instance[LocaleKeys.InputDialogNo],
+                    LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
 
                 if (result == UserResult.Yes)
                 {
@@ -205,11 +206,12 @@ namespace Ryujinx.Ava.UI.Controls
 
             if (viewModel?.SelectedApplication != null)
             {
-                UserResult result = await ContentDialogHelper.CreateConfirmationDialog(LocaleManager.Instance[LocaleKeys.DialogWarning],
-                                                                                       LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogShaderDeletionMessage, viewModel.SelectedApplication.TitleName),
-                                                                                       LocaleManager.Instance[LocaleKeys.InputDialogYes],
-                                                                                       LocaleManager.Instance[LocaleKeys.InputDialogNo],
-                                                                                       LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
+                UserResult result = await ContentDialogHelper.CreateConfirmationDialog(
+                    LocaleManager.Instance[LocaleKeys.DialogWarning],
+                    LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogShaderDeletionMessage, viewModel.SelectedApplication.TitleName),
+                    LocaleManager.Instance[LocaleKeys.InputDialogYes],
+                    LocaleManager.Instance[LocaleKeys.InputDialogNo],
+                    LocaleManager.Instance[LocaleKeys.RyujinxConfirm]);
 
                 if (result == UserResult.Yes)
                 {
@@ -335,13 +337,13 @@ namespace Ryujinx.Ava.UI.Controls
             }
         }
 
-        public void RunApplication_Click(object sender, RoutedEventArgs args)
+        public async void RunApplication_Click(object sender, RoutedEventArgs args)
         {
             var viewModel = (sender as MenuItem)?.DataContext as MainWindowViewModel;
 
             if (viewModel?.SelectedApplication != null)
             {
-                viewModel.LoadApplication(viewModel.SelectedApplication.Path);
+                await viewModel.LoadApplication(viewModel.SelectedApplication.Path);
             }
         }
     }

src/Ryujinx.Ava/UI/ViewModels/DownloadableContentManagerViewModel.cs

@@ -212,9 +212,9 @@ namespace Ryujinx.Ava.UI.ViewModels
                     {
                         Patterns = new[] { "*.nsp" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nsp" },
-                        MimeTypes = new[] { "application/x-nx-nsp" }
-                    }
-                }
+                        MimeTypes = new[] { "application/x-nx-nsp" },
+                    },
+                },
             });
 
             foreach (var file in result)

src/Ryujinx.Ava/UI/ViewModels/MainWindowViewModel.cs

@@ -26,6 +26,7 @@ using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
 using Ryujinx.HLE.Ui;
+using Ryujinx.Input.HLE;
 using Ryujinx.Modules;
 using Ryujinx.Ui.App.Common;
 using Ryujinx.Ui.Common;
@@ -39,7 +40,6 @@ using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using Image = SixLabors.ImageSharp.Image;
-using InputManager = Ryujinx.Input.HLE.InputManager;
 using Key = Ryujinx.Input.Key;
 using MissingKeyException = LibHac.Common.Keys.MissingKeyException;
 using ShaderCacheLoadingState = Ryujinx.Graphics.Gpu.Shader.ShaderCacheState;
@@ -1068,9 +1068,7 @@ namespace Ryujinx.Ava.UI.ViewModels
                 {
                     Logger.Error?.Print(LogClass.Application, ex.ToString());
 
-                    static async void Action() => await UserErrorDialog.ShowUserErrorDialog(UserError.NoKeys);
-
-                    Dispatcher.UIThread.Post(Action);
+                    await UserErrorDialog.ShowUserErrorDialog(UserError.NoKeys);
                 }
             }
             catch (Exception ex)
@@ -1163,16 +1161,13 @@ namespace Ryujinx.Ava.UI.ViewModels
             AppHost?.DisposeContext();
         }
 
-        private void HandleRelaunch()
+        private async Task HandleRelaunch()
         {
             if (UserChannelPersistence.PreviousIndex != -1 && UserChannelPersistence.ShouldRestart)
             {
                 UserChannelPersistence.ShouldRestart = false;
 
-                Dispatcher.UIThread.Post(() =>
-                {
-                    LoadApplication(_currentEmulatedGamePath);
-                });
+                await LoadApplication(_currentEmulatedGamePath);
             }
             else
             {
@@ -1191,7 +1186,7 @@ namespace Ryujinx.Ava.UI.ViewModels
                     Application.Current.Styles.TryGetResource(args.VSyncEnabled
                         ? "VsyncEnabled"
                         : "VsyncDisabled",
-                        Avalonia.Application.Current.ActualThemeVariant,
+                        Application.Current.ActualThemeVariant,
                         out object color);
 
                     if (color is not null)
@@ -1283,7 +1278,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             Glyph = Glyph.Grid;
         }
 
-        public async void InstallFirmwareFromFile()
+        public async Task InstallFirmwareFromFile()
         {
             var result = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
             {
@@ -1294,21 +1289,21 @@ namespace Ryujinx.Ava.UI.ViewModels
                     {
                         Patterns = new[] { "*.xci", "*.zip" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.xci", "public.zip-archive" },
-                        MimeTypes = new[] { "application/x-nx-xci", "application/zip" }
+                        MimeTypes = new[] { "application/x-nx-xci", "application/zip" },
                     },
                     new("XCI")
                     {
                         Patterns = new[] { "*.xci" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.xci" },
-                        MimeTypes = new[] { "application/x-nx-xci" }
+                        MimeTypes = new[] { "application/x-nx-xci" },
                     },
                     new("ZIP")
                     {
                         Patterns = new[] { "*.zip" },
                         AppleUniformTypeIdentifiers = new[] { "public.zip-archive" },
-                        MimeTypes = new[] { "application/zip" }
+                        MimeTypes = new[] { "application/zip" },
                     },
-                }
+                },
             });
 
             if (result.Count > 0)
@@ -1317,11 +1312,11 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
-        public async void InstallFirmwareFromFolder()
+        public async Task InstallFirmwareFromFolder()
         {
             var result = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
-                AllowMultiple = false
+                AllowMultiple = false,
             });
 
             if (result.Count > 0)
@@ -1352,7 +1347,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
-        public async void ExitCurrentState()
+        public async Task ExitCurrentState()
         {
             if (WindowState == WindowState.FullScreen)
             {
@@ -1377,7 +1372,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
-        public async void ManageProfiles()
+        public async Task ManageProfiles()
         {
             await NavigationDialogHost.Show(AccountManager, ContentManager, VirtualFileSystem, LibHacHorizonManager.RyujinxClient);
         }
@@ -1387,7 +1382,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             AppHost.Device.System.SimulateWakeUpMessage();
         }
 
-        public async void OpenFile()
+        public async Task OpenFile()
         {
             var result = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
             {
@@ -1404,7 +1399,7 @@ namespace Ryujinx.Ava.UI.ViewModels
                             "com.ryujinx.xci",
                             "com.ryujinx.nca",
                             "com.ryujinx.nro",
-                            "com.ryujinx.nso"
+                            "com.ryujinx.nso",
                         },
                         MimeTypes = new[]
                         {
@@ -1412,63 +1407,63 @@ namespace Ryujinx.Ava.UI.ViewModels
                             "application/x-nx-xci",
                             "application/x-nx-nca",
                             "application/x-nx-nro",
-                            "application/x-nx-nso"
-                        }
+                            "application/x-nx-nso",
+                        },
                     },
                     new("NSP")
                     {
                         Patterns = new[] { "*.nsp" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nsp" },
-                        MimeTypes = new[] { "application/x-nx-nsp" }
+                        MimeTypes = new[] { "application/x-nx-nsp" },
                     },
                     new("XCI")
                     {
                         Patterns = new[] { "*.xci" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.xci" },
-                        MimeTypes = new[] { "application/x-nx-xci" }
+                        MimeTypes = new[] { "application/x-nx-xci" },
                     },
                     new("NCA")
                     {
                         Patterns = new[] { "*.nca" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nca" },
-                        MimeTypes = new[] { "application/x-nx-nca" }
+                        MimeTypes = new[] { "application/x-nx-nca" },
                     },
                     new("NRO")
                     {
                         Patterns = new[] { "*.nro" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nro" },
-                        MimeTypes = new[] { "application/x-nx-nro" }
+                        MimeTypes = new[] { "application/x-nx-nro" },
                     },
                     new("NSO")
                     {
                         Patterns = new[] { "*.nso" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nso" },
-                        MimeTypes = new[] { "application/x-nx-nso" }
+                        MimeTypes = new[] { "application/x-nx-nso" },
                     },
-                }
+                },
             });
 
             if (result.Count > 0)
             {
-                LoadApplication(result[0].Path.LocalPath);
+                await LoadApplication(result[0].Path.LocalPath);
             }
         }
 
-        public async void OpenFolder()
+        public async Task OpenFolder()
         {
             var result = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
                 Title = LocaleManager.Instance[LocaleKeys.OpenFolderDialogTitle],
-                AllowMultiple = false
+                AllowMultiple = false,
             });
 
             if (result.Count > 0)
             {
-                LoadApplication(result[0].Path.LocalPath);
+                await LoadApplication(result[0].Path.LocalPath);
             }
         }
 
-        public async void LoadApplication(string path, bool startFullscreen = false, string titleName = "")
+        public async Task LoadApplication(string path, bool startFullscreen = false, string titleName = "")
         {
             if (AppHost != null)
             {
@@ -1505,35 +1500,30 @@ namespace Ryujinx.Ava.UI.ViewModels
                 this,
                 TopLevel);
 
-            async void Action()
+            if (!await AppHost.LoadGuestApplication())
             {
-                if (!await AppHost.LoadGuestApplication())
-                {
-                    AppHost.DisposeContext();
-                    AppHost = null;
+                AppHost.DisposeContext();
+                AppHost = null;
 
-                    return;
-                }
-
-                CanUpdate = false;
-
-                LoadHeading = TitleName = titleName;
-
-                if (string.IsNullOrWhiteSpace(titleName))
-                {
-                    LoadHeading = LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.LoadingHeading, AppHost.Device.Processes.ActiveApplication.Name);
-                    TitleName = AppHost.Device.Processes.ActiveApplication.Name;
-                }
-
-                SwitchToRenderer(startFullscreen);
-
-                _currentEmulatedGamePath = path;
-
-                Thread gameThread = new(InitializeGame) { Name = "GUI.WindowThread" };
-                gameThread.Start();
+                return;
             }
 
-            Dispatcher.UIThread.Post(Action);
+            CanUpdate = false;
+
+            LoadHeading = TitleName = titleName;
+
+            if (string.IsNullOrWhiteSpace(titleName))
+            {
+                LoadHeading = LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.LoadingHeading, AppHost.Device.Processes.ActiveApplication.Name);
+                TitleName = AppHost.Device.Processes.ActiveApplication.Name;
+            }
+
+            SwitchToRenderer(startFullscreen);
+
+            _currentEmulatedGamePath = path;
+
+            Thread gameThread = new(InitializeGame) { Name = "GUI.WindowThread" };
+            gameThread.Start();
         }
 
         public void SwitchToRenderer(bool startFullscreen)
@@ -1596,7 +1586,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
             IsGameRunning = false;
 
-            Dispatcher.UIThread.InvokeAsync(() =>
+            Dispatcher.UIThread.InvokeAsync(async () =>
             {
                 ShowMenuAndStatusBar = true;
                 ShowContent = true;
@@ -1609,7 +1599,7 @@ namespace Ryujinx.Ava.UI.ViewModels
 
                 AppHost = null;
 
-                HandleRelaunch();
+                await HandleRelaunch();
             });
 
             RendererHostControl.WindowCreated -= RendererHost_Created;

src/Ryujinx.Ava/UI/ViewModels/SettingsViewModel.cs

@@ -10,6 +10,7 @@ using Ryujinx.Ava.UI.Helpers;
 using Ryujinx.Ava.UI.Windows;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.GraphicsDriver;
 using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.Vulkan;
@@ -54,6 +55,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public event Action CloseWindow;
         public event Action SaveSettingsEvent;
         private int _networkInterfaceIndex;
+        private int _multiplayerModeIndex;
 
         public int ResolutionScale
         {
@@ -76,14 +78,13 @@ namespace Ryujinx.Ava.UI.ViewModels
 
                 if (_graphicsBackendMultithreadingIndex != (int)ConfigurationState.Instance.Graphics.BackendThreading.Value)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningMessage],
+                    Dispatcher.UIThread.InvokeAsync(() =>
+                         ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningMessage],
                             "",
                             "",
                             LocaleManager.Instance[LocaleKeys.InputDialogOk],
-                            LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningTitle]);
-                    });
+                            LocaleManager.Instance[LocaleKeys.DialogSettingsBackendThreadingWarningTitle])
+                    );
                 }
 
                 OnPropertyChanged();
@@ -251,6 +252,11 @@ namespace Ryujinx.Ava.UI.ViewModels
             get => new(_networkInterfaces.Keys);
         }
 
+        public AvaloniaList<string> MultiplayerModes
+        {
+            get => new(Enum.GetNames<MultiplayerMode>());
+        }
+
         public KeyboardHotkeys KeyboardHotkeys
         {
             get => _keyboardHotkeys;
@@ -272,6 +278,16 @@ namespace Ryujinx.Ava.UI.ViewModels
             }
         }
 
+        public int MultiplayerModeIndex
+        {
+            get => _multiplayerModeIndex;
+            set
+            {
+                _multiplayerModeIndex = value;
+                ConfigurationState.Instance.Multiplayer.Mode.Value = (MultiplayerMode)_multiplayerModeIndex;
+            }
+        }
+
         public SettingsViewModel(VirtualFileSystem virtualFileSystem, ContentManager contentManager) : this()
         {
             _virtualFileSystem = virtualFileSystem;
@@ -478,6 +494,8 @@ namespace Ryujinx.Ava.UI.ViewModels
             EnableFsAccessLog = config.Logger.EnableFsAccessLog;
             FsGlobalAccessLogMode = config.System.FsGlobalAccessLogMode;
             OpenglDebugLevel = (int)config.Logger.GraphicsDebugLevel.Value;
+
+            MultiplayerModeIndex = (int)config.Multiplayer.Mode.Value;
         }
 
         public void SaveSettings()
@@ -579,6 +597,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             config.Logger.GraphicsDebugLevel.Value = (GraphicsDebugLevel)OpenglDebugLevel;
 
             config.Multiplayer.LanInterfaceId.Value = _networkInterfaces[NetworkInterfaceList[NetworkInterfaceIndex]];
+            config.Multiplayer.Mode.Value = (MultiplayerMode)MultiplayerModeIndex;
 
             config.ToFileFormat().SaveConfig(Program.ConfigurationPath);
 

src/Ryujinx.Ava/UI/ViewModels/TitleUpdateViewModel.cs

@@ -22,6 +22,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using Path = System.IO.Path;
 using SpanHelpers = LibHac.Common.SpanHelpers;
 
@@ -184,18 +185,12 @@ namespace Ryujinx.Ava.UI.ViewModels
                     }
                     else
                     {
-                        Dispatcher.UIThread.Post(async () =>
-                        {
-                            await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]);
-                        });
+                        Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance[LocaleKeys.DialogUpdateAddUpdateErrorMessage]));
                     }
                 }
                 catch (Exception ex)
                 {
-                    Dispatcher.UIThread.Post(async () =>
-                    {
-                        await ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadNcaErrorMessage, ex.Message, path));
-                    });
+                    Dispatcher.UIThread.InvokeAsync(() => ContentDialogHelper.CreateErrorDialog(LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.DialogLoadNcaErrorMessage, ex.Message, path)));
                 }
             }
         }
@@ -207,7 +202,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             SortUpdates();
         }
 
-        public async void Add()
+        public async Task Add()
         {
             var result = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
             {
@@ -218,9 +213,9 @@ namespace Ryujinx.Ava.UI.ViewModels
                     {
                         Patterns = new[] { "*.nsp" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.nsp" },
-                        MimeTypes = new[] { "application/x-nx-nsp" }
-                    }
-                }
+                        MimeTypes = new[] { "application/x-nx-nsp" },
+                    },
+                },
             });
 
             foreach (var file in result)

src/Ryujinx.Ava/UI/Views/Main/MainMenuBarView.axaml.cs

@@ -17,7 +17,6 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Threading.Tasks;
 
 namespace Ryujinx.Ava.UI.Views.Main
 {
@@ -107,20 +106,14 @@ namespace Ryujinx.Ava.UI.Views.Main
             await Window.ViewModel.AppHost?.ShowExitPrompt();
         }
 
-        private async void PauseEmulation_Click(object sender, RoutedEventArgs e)
+        private void PauseEmulation_Click(object sender, RoutedEventArgs e)
         {
-            await Task.Run(() =>
-            {
-                Window.ViewModel.AppHost?.Pause();
-            });
+            Window.ViewModel.AppHost?.Pause();
         }
 
-        private async void ResumeEmulation_Click(object sender, RoutedEventArgs e)
+        private void ResumeEmulation_Click(object sender, RoutedEventArgs e)
         {
-            await Task.Run(() =>
-            {
-                Window.ViewModel.AppHost?.Resume();
-            });
+            Window.ViewModel.AppHost?.Resume();
         }
 
         public async void OpenSettings(object sender, RoutedEventArgs e)
@@ -132,13 +125,13 @@ namespace Ryujinx.Ava.UI.Views.Main
             ViewModel.LoadConfigurableHotKeys();
         }
 
-        public void OpenMiiApplet(object sender, RoutedEventArgs e)
+        public async void OpenMiiApplet(object sender, RoutedEventArgs e)
         {
             string contentPath = ViewModel.ContentManager.GetInstalledContentPath(0x0100000000001009, StorageId.BuiltInSystem, NcaContentType.Program);
 
             if (!string.IsNullOrEmpty(contentPath))
             {
-                ViewModel.LoadApplication(contentPath, false, "Mii Applet");
+                await ViewModel.LoadApplication(contentPath, false, "Mii Applet");
             }
         }
 
@@ -196,8 +189,7 @@ namespace Ryujinx.Ava.UI.Views.Main
         {
             if (FileAssociationHelper.Install())
             {
-                await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogInstallFileTypesSuccessMessage],
-                    string.Empty, LocaleManager.Instance[LocaleKeys.InputDialogOk], string.Empty, string.Empty);
+                await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogInstallFileTypesSuccessMessage], string.Empty, LocaleManager.Instance[LocaleKeys.InputDialogOk], string.Empty, string.Empty);
             }
             else
             {
@@ -209,8 +201,7 @@ namespace Ryujinx.Ava.UI.Views.Main
         {
             if (FileAssociationHelper.Uninstall())
             {
-                await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogUninstallFileTypesSuccessMessage],
-                    string.Empty, LocaleManager.Instance[LocaleKeys.InputDialogOk], string.Empty, string.Empty);
+                await ContentDialogHelper.CreateInfoDialog(LocaleManager.Instance[LocaleKeys.DialogUninstallFileTypesSuccessMessage], string.Empty, LocaleManager.Instance[LocaleKeys.InputDialogOk], string.Empty, string.Empty);
             }
             else
             {

src/Ryujinx.Ava/UI/Views/Settings/SettingsNetworkView.axaml

@@ -23,21 +23,34 @@
                 HorizontalAlignment="Stretch"
                 Orientation="Vertical"
                 Spacing="10">
+                <TextBlock Classes="h1" Text="{locale:Locale SettingsTabNetworkMultiplayer}" />
+                <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
+                    <TextBlock VerticalAlignment="Center"
+                        Text="{locale:Locale MultiplayerMode}"
+                        ToolTip.Tip="{locale:Locale MultiplayerModeTooltip}"
+                        Width="200" />
+                    <ComboBox SelectedIndex="{Binding MultiplayerModeIndex}"
+                        ToolTip.Tip="{locale:Locale MultiplayerModeTooltip}"
+                        HorizontalContentAlignment="Left"
+                        ItemsSource="{Binding MultiplayerModes}"
+                        Width="250" />
+                </StackPanel>
+                <Separator Height="1" />
                 <TextBlock Classes="h1" Text="{locale:Locale SettingsTabNetworkConnection}" />
                 <CheckBox Margin="10,0,0,0" IsChecked="{Binding EnableInternetAccess}">
                     <TextBlock Text="{locale:Locale SettingsTabSystemEnableInternetAccess}"
-                               ToolTip.Tip="{locale:Locale EnableInternetAccessTooltip}" />
+                        ToolTip.Tip="{locale:Locale EnableInternetAccessTooltip}" />
                 </CheckBox>
                 <StackPanel Margin="10,0,0,0" Orientation="Horizontal">
                     <TextBlock VerticalAlignment="Center"
-                               Text="{locale:Locale SettingsTabNetworkInterface}"
-                               ToolTip.Tip="{locale:Locale NetworkInterfaceTooltip}"
-                               Width="200" />
+                        Text="{locale:Locale SettingsTabNetworkInterface}"
+                        ToolTip.Tip="{locale:Locale NetworkInterfaceTooltip}"
+                        Width="200" />
                     <ComboBox SelectedIndex="{Binding NetworkInterfaceIndex}"
-                              ToolTip.Tip="{locale:Locale NetworkInterfaceTooltip}"
-                              HorizontalContentAlignment="Left"
-                              ItemsSource="{Binding NetworkInterfaceList}"
-                              Width="250" />
+                        ToolTip.Tip="{locale:Locale NetworkInterfaceTooltip}"
+                        HorizontalContentAlignment="Left"
+                        ItemsSource="{Binding NetworkInterfaceList}"
+                        Width="250" />
                 </StackPanel>
             </StackPanel>
         </Border>

src/Ryujinx.Ava/UI/Views/Settings/SettingsUIView.axaml.cs

@@ -34,7 +34,7 @@ namespace Ryujinx.Ava.UI.Views.Settings
                 {
                     var result = await window.StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
                     {
-                        AllowMultiple = false
+                        AllowMultiple = false,
                     });
 
                     if (result.Count > 0)
@@ -75,9 +75,9 @@ namespace Ryujinx.Ava.UI.Views.Settings
                     {
                         Patterns = new[] { "*.xaml" },
                         AppleUniformTypeIdentifiers = new[] { "com.ryujinx.xaml" },
-                        MimeTypes = new[] { "application/xaml+xml" }
-                    }
-                }
+                        MimeTypes = new[] { "application/xaml+xml" },
+                    },
+                },
             });
 
             if (result.Count > 0)

src/Ryujinx.Ava/UI/Views/User/UserProfileImageSelectorView.axaml.cs

@@ -75,9 +75,9 @@ namespace Ryujinx.Ava.UI.Views.User
                     {
                         Patterns = new[] { "*.jpg", "*.jpeg", "*.png", "*.bmp" },
                         AppleUniformTypeIdentifiers = new[] { "public.jpeg", "public.png", "com.microsoft.bmp" },
-                        MimeTypes = new[] { "image/jpeg", "image/png", "image/bmp" }
-                    }
-                }
+                        MimeTypes = new[] { "image/jpeg", "image/png", "image/bmp" },
+                    },
+                },
             });
 
             if (result.Count > 0)

src/Ryujinx.Ava/UI/Windows/MainWindow.axaml.cs

@@ -15,6 +15,7 @@ using Ryujinx.Graphics.Gpu;
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS;
 using Ryujinx.HLE.HOS.Services.Account.Acc;
+using Ryujinx.Input.HLE;
 using Ryujinx.Input.SDL2;
 using Ryujinx.Modules;
 using Ryujinx.Ui.App.Common;
@@ -24,8 +25,8 @@ using Ryujinx.Ui.Common.Helper;
 using System;
 using System.IO;
 using System.Runtime.Versioning;
+using System.Threading;
 using System.Threading.Tasks;
-using InputManager = Ryujinx.Input.HLE.InputManager;
 
 namespace Ryujinx.Ava.UI.Windows
 {
@@ -79,35 +80,11 @@ namespace Ryujinx.Ava.UI.Windows
 
             if (Program.PreviewerDetached)
             {
-                Initialize();
-
                 InputManager = new InputManager(new AvaloniaKeyboardDriver(this), new SDL2GamepadDriver());
 
-                ViewModel.Initialize(
-                    ContentManager,
-                    StorageProvider,
-                    ApplicationLibrary,
-                    VirtualFileSystem,
-                    AccountManager,
-                    InputManager,
-                    _userChannelPersistence,
-                    LibHacHorizonManager,
-                    UiHandler,
-                    ShowLoading,
-                    SwitchToGameControl,
-                    SetMainContent,
-                    this);
-
-                ViewModel.RefreshFirmwareStatus();
-
-                LoadGameList();
-
                 this.GetObservable(IsActiveProperty).Subscribe(IsActiveChanged);
                 this.ScalingChanged += OnScalingChanged;
             }
-
-            ApplicationLibrary.ApplicationCountUpdated += ApplicationLibrary_ApplicationCountUpdated;
-            ApplicationLibrary.ApplicationAdded += ApplicationLibrary_ApplicationAdded;
         }
 
         protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
@@ -122,36 +99,17 @@ namespace Ryujinx.Ava.UI.Windows
             ViewModel.IsActive = obj;
         }
 
-        public void LoadGameList()
-        {
-            if (_isLoading)
-            {
-                return;
-            }
-
-            _isLoading = true;
-
-            LoadApplications();
-
-            _isLoading = false;
-        }
-
         private void OnScalingChanged(object sender, EventArgs e)
         {
             Program.DesktopScaleFactor = this.RenderScaling;
         }
 
-        public void AddApplication(ApplicationData applicationData)
-        {
-            Dispatcher.UIThread.InvokeAsync(() =>
-            {
-                ViewModel.Applications.Add(applicationData);
-            });
-        }
-
         private void ApplicationLibrary_ApplicationAdded(object sender, ApplicationAddedEventArgs e)
         {
-            AddApplication(e.AppData);
+            Dispatcher.UIThread.Post(() =>
+            {
+                ViewModel.Applications.Add(e.AppData);
+            });
         }
 
         private void ApplicationLibrary_ApplicationCountUpdated(object sender, ApplicationCountUpdatedEventArgs e)
@@ -183,7 +141,7 @@ namespace Ryujinx.Ava.UI.Windows
 
                 string path = new FileInfo(args.Application.Path).FullName;
 
-                ViewModel.LoadApplication(path);
+                ViewModel.LoadApplication(path).Wait();
             }
 
             args.Handled = true;
@@ -202,13 +160,10 @@ namespace Ryujinx.Ava.UI.Windows
             ViewModel.ShowContent = true;
             ViewModel.IsLoadingIndeterminate = false;
 
-            Dispatcher.UIThread.InvokeAsync(() =>
+            if (startFullscreen && ViewModel.WindowState != WindowState.FullScreen)
             {
-                if (startFullscreen && ViewModel.WindowState != WindowState.FullScreen)
-                {
-                    ViewModel.ToggleFullscreen();
-                }
-            });
+                ViewModel.ToggleFullscreen();
+            }
         }
 
         public void ShowLoading(bool startFullscreen = false)
@@ -217,13 +172,10 @@ namespace Ryujinx.Ava.UI.Windows
             ViewModel.ShowLoadProgress = true;
             ViewModel.IsLoadingIndeterminate = true;
 
-            Dispatcher.UIThread.InvokeAsync(() =>
+            if (startFullscreen && ViewModel.WindowState != WindowState.FullScreen)
             {
-                if (startFullscreen && ViewModel.WindowState != WindowState.FullScreen)
-                {
-                    ViewModel.ToggleFullscreen();
-                }
-            });
+                ViewModel.ToggleFullscreen();
+            }
         }
 
         private void Initialize()
@@ -251,11 +203,11 @@ namespace Ryujinx.Ava.UI.Windows
 
             VirtualFileSystem.ReloadKeySet();
 
-            ApplicationHelper.Initialize(VirtualFileSystem, AccountManager, LibHacHorizonManager.RyujinxClient, this);
+            ApplicationHelper.Initialize(VirtualFileSystem, AccountManager, LibHacHorizonManager.RyujinxClient);
         }
 
         [SupportedOSPlatform("linux")]
-        private static async void ShowVmMaxMapCountWarning()
+        private static async Task ShowVmMaxMapCountWarning()
         {
             LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.LinuxVmMaxMapCountWarningTextSecondary,
                 LinuxHelper.VmMaxMapCount, LinuxHelper.RecommendedVmMaxMapCount);
@@ -267,7 +219,7 @@ namespace Ryujinx.Ava.UI.Windows
         }
 
         [SupportedOSPlatform("linux")]
-        private static async void ShowVmMaxMapCountDialog()
+        private static async Task ShowVmMaxMapCountDialog()
         {
             LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.LinuxVmMaxMapCountDialogTextPrimary,
                 LinuxHelper.RecommendedVmMaxMapCount);
@@ -317,8 +269,7 @@ namespace Ryujinx.Ava.UI.Windows
             {
                 ShowKeyErrorOnLoad = false;
 
-                Dispatcher.UIThread.Post(async () => await
-                    UserErrorDialog.ShowUserErrorDialog(UserError.NoKeys));
+                UserErrorDialog.ShowUserErrorDialog(UserError.NoKeys).Wait();
             }
 
             if (OperatingSystem.IsLinux() && LinuxHelper.VmMaxMapCount < LinuxHelper.RecommendedVmMaxMapCount)
@@ -327,11 +278,11 @@ namespace Ryujinx.Ava.UI.Windows
 
                 if (LinuxHelper.PkExecPath is not null)
                 {
-                    Dispatcher.UIThread.Post(ShowVmMaxMapCountDialog);
+                    ShowVmMaxMapCountDialog().Wait();
                 }
                 else
                 {
-                    Dispatcher.UIThread.Post(ShowVmMaxMapCountWarning);
+                    ShowVmMaxMapCountWarning().Wait();
                 }
             }
 
@@ -339,7 +290,7 @@ namespace Ryujinx.Ava.UI.Windows
             {
                 _deferLoad = false;
 
-                ViewModel.LoadApplication(_launchPath, _startFullscreen);
+                ViewModel.LoadApplication(_launchPath, _startFullscreen).Wait();
             }
 
             if (ConfigurationState.Instance.CheckUpdatesOnStart.Value && Updater.CanUpdate(false))
@@ -372,7 +323,7 @@ namespace Ryujinx.Ava.UI.Windows
             ViewModel.WindowHeight = ConfigurationState.Instance.Ui.WindowStartup.WindowSizeHeight * Program.WindowScaleFactor;
             ViewModel.WindowWidth = ConfigurationState.Instance.Ui.WindowStartup.WindowSizeWidth * Program.WindowScaleFactor;
 
-            ViewModel.WindowState = ConfigurationState.Instance.Ui.WindowStartup.WindowMaximized.Value is true ? WindowState.Maximized : WindowState.Normal;
+            ViewModel.WindowState = ConfigurationState.Instance.Ui.WindowStartup.WindowMaximized.Value ? WindowState.Maximized : WindowState.Normal;
 
             if (CheckScreenBounds(savedPoint))
             {
@@ -415,6 +366,30 @@ namespace Ryujinx.Ava.UI.Windows
         {
             base.OnOpened(e);
 
+            Initialize();
+
+            ViewModel.Initialize(
+                ContentManager,
+                StorageProvider,
+                ApplicationLibrary,
+                VirtualFileSystem,
+                AccountManager,
+                InputManager,
+                _userChannelPersistence,
+                LibHacHorizonManager,
+                UiHandler,
+                ShowLoading,
+                SwitchToGameControl,
+                SetMainContent,
+                this);
+
+            ApplicationLibrary.ApplicationCountUpdated += ApplicationLibrary_ApplicationCountUpdated;
+            ApplicationLibrary.ApplicationAdded += ApplicationLibrary_ApplicationAdded;
+
+            ViewModel.RefreshFirmwareStatus();
+
+            LoadApplications();
+
             CheckLaunchState();
         }
 
@@ -514,18 +489,15 @@ namespace Ryujinx.Ava.UI.Windows
             });
         }
 
-        public async void LoadApplications()
+        public void LoadApplications()
         {
-            await Dispatcher.UIThread.InvokeAsync(() =>
-            {
-                ViewModel.Applications.Clear();
+            ViewModel.Applications.Clear();
 
-                StatusBarView.LoadProgressBar.IsVisible = true;
-                ViewModel.StatusBarProgressMaximum = 0;
-                ViewModel.StatusBarProgressValue = 0;
+            StatusBarView.LoadProgressBar.IsVisible = true;
+            ViewModel.StatusBarProgressMaximum = 0;
+            ViewModel.StatusBarProgressValue = 0;
 
-                LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.StatusBarGamesLoaded, 0, 0);
-            });
+            LocaleManager.Instance.UpdateAndGetDynamicValue(LocaleKeys.StatusBarGamesLoaded, 0, 0);
 
             ReloadGameList();
         }
@@ -558,9 +530,17 @@ namespace Ryujinx.Ava.UI.Windows
 
             _isLoading = true;
 
-            ApplicationLibrary.LoadApplications(ConfigurationState.Instance.Ui.GameDirs.Value, ConfigurationState.Instance.System.Language);
+            Thread applicationLibraryThread = new(() =>
+            {
+                ApplicationLibrary.LoadApplications(ConfigurationState.Instance.Ui.GameDirs, ConfigurationState.Instance.System.Language);
 
-            _isLoading = false;
+                _isLoading = false;
+            })
+            {
+                Name = "GUI.ApplicationLibraryThread",
+                IsBackground = true,
+            };
+            applicationLibraryThread.Start();
         }
     }
 }

src/Ryujinx.Ava/UI/Windows/StyleableWindow.cs

@@ -3,7 +3,6 @@ using Avalonia.Controls.Primitives;
 using Avalonia.Media.Imaging;
 using Avalonia.Platform;
 using Ryujinx.Ui.Common.Configuration;
-using System;
 using System.IO;
 using System.Reflection;
 
@@ -25,11 +24,6 @@ namespace Ryujinx.Ava.UI.Windows
             IconImage = new Bitmap(stream);
         }
 
-        protected override void OnOpened(EventArgs e)
-        {
-            base.OnOpened(e);
-        }
-
         protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
         {
             base.OnApplyTemplate(e);

src/Ryujinx.Common/Configuration/Multiplayer/MultiplayerMode.cs

@@ -0,0 +1,7 @@
+namespace Ryujinx.Common.Configuration.Multiplayer
+{
+    public enum MultiplayerMode
+    {
+        Disabled,
+    }
+}

src/Ryujinx.Common/Memory/StructArrayHelpers.cs

@@ -791,5 +791,34 @@ namespace Ryujinx.Common.Memory
         [Pure]
         public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
     }
+
+    public struct Array140<T> : IArray<T> where T : unmanaged
+    {
+        T _e0;
+        Array64<T> _other;
+        Array64<T> _other2;
+        Array11<T> _other3;
+        public readonly int Length => 140;
+        public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
+        public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
+    }
+
+    public struct Array384<T> : IArray<T> where T : unmanaged
+    {
+        T _e0;
+        Array64<T> _other;
+        Array64<T> _other2;
+        Array64<T> _other3;
+        Array64<T> _other4;
+        Array64<T> _other5;
+        Array63<T> _other6;
+        public readonly int Length => 384;
+        public ref T this[int index] => ref AsSpan()[index];
+
+        [Pure]
+        public Span<T> AsSpan() => MemoryMarshal.CreateSpan(ref _e0, Length);
+    }
 }
 #pragma warning restore CS0169, IDE0051

src/Ryujinx.Common/Utilities/NetworkHelpers.cs

@@ -1,4 +1,6 @@
-using System.Net.NetworkInformation;
+using System.Buffers.Binary;
+using System.Net;
+using System.Net.NetworkInformation;
 
 namespace Ryujinx.Common.Utilities
 {
@@ -62,5 +64,15 @@ namespace Ryujinx.Common.Utilities
 
             return (targetProperties, targetAddressInfo);
         }
+
+        public static uint ConvertIpv4Address(IPAddress ipAddress)
+        {
+            return BinaryPrimitives.ReadUInt32BigEndian(ipAddress.GetAddressBytes());
+        }
+
+        public static uint ConvertIpv4Address(string ipAddress)
+        {
+            return ConvertIpv4Address(IPAddress.Parse(ipAddress));
+        }
     }
 }

src/Ryujinx.Graphics.GAL/Format.cs

@@ -335,6 +335,45 @@ namespace Ryujinx.Graphics.GAL
             return 1;
         }
 
+        /// <summary>
+        /// Checks if the texture format is a depth or depth-stencil format.
+        /// </summary>
+        /// <param name="format">Texture format</param>
+        /// <returns>True if the format is a depth or depth-stencil format, false otherwise</returns>
+        public static bool HasDepth(this Format format)
+        {
+            switch (format)
+            {
+                case Format.D16Unorm:
+                case Format.D24UnormS8Uint:
+                case Format.S8UintD24Unorm:
+                case Format.D32Float:
+                case Format.D32FloatS8Uint:
+                    return true;
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// Checks if the texture format is a stencil or depth-stencil format.
+        /// </summary>
+        /// <param name="format">Texture format</param>
+        /// <returns>True if the format is a stencil or depth-stencil format, false otherwise</returns>
+        public static bool HasStencil(this Format format)
+        {
+            switch (format)
+            {
+                case Format.D24UnormS8Uint:
+                case Format.S8UintD24Unorm:
+                case Format.D32FloatS8Uint:
+                case Format.S8Uint:
+                    return true;
+            }
+
+            return false;
+        }
+
         /// <summary>
         /// Checks if the texture format is valid to use as image format.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Engine/Threed/DrawManager.cs

@@ -1,6 +1,7 @@
 using Ryujinx.Graphics.GAL;
 using Ryujinx.Graphics.Gpu.Engine.Threed.ComputeDraw;
 using Ryujinx.Graphics.Gpu.Engine.Types;
+using Ryujinx.Graphics.Gpu.Image;
 using Ryujinx.Graphics.Gpu.Memory;
 using System;
 
@@ -806,25 +807,69 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
                 updateFlags |= RenderTargetUpdateFlags.Layered;
             }
 
-            if (clearDepth || clearStencil)
+            bool clearDS = clearDepth || clearStencil;
+
+            if (clearDS)
             {
                 updateFlags |= RenderTargetUpdateFlags.UpdateDepthStencil;
             }
 
-            engine.UpdateRenderTargetState(updateFlags, singleUse: componentMask != 0 ? index : -1);
-
             // If there is a mismatch on the host clip region and the one explicitly defined by the guest
             // on the screen scissor state, then we need to force only one texture to be bound to avoid
             // host clipping.
             var screenScissorState = _state.State.ScreenScissorState;
 
+            bool clearAffectedByStencilMask = (_state.State.ClearFlags & 1) != 0;
+            bool clearAffectedByScissor = (_state.State.ClearFlags & 0x100) != 0;
+
+            if (clearDS || componentMask == 15)
+            {
+                // A full clear if scissor is disabled, or it matches the screen scissor state.
+
+                bool fullClear = screenScissorState.X == 0 && screenScissorState.Y == 0;
+
+                if (fullClear && clearAffectedByScissor && _state.State.ScissorState[0].Enable)
+                {
+                    ref var scissorState = ref _state.State.ScissorState[0];
+
+                    fullClear = scissorState.X1 == screenScissorState.X &&
+                        scissorState.Y1 == screenScissorState.Y &&
+                        scissorState.X2 >= screenScissorState.X + screenScissorState.Width &&
+                        scissorState.Y2 >= screenScissorState.Y + screenScissorState.Height;
+                }
+
+                if (fullClear && clearDS)
+                {
+                    // Must clear all aspects of the depth-stencil format.
+
+                    FormatInfo dsFormat = _state.State.RtDepthStencilState.Format.Convert();
+
+                    bool hasDepth = dsFormat.Format.HasDepth();
+                    bool hasStencil = dsFormat.Format.HasStencil();
+
+                    if (hasStencil && (!clearStencil || (clearAffectedByStencilMask && _state.State.StencilTestState.FrontMask != 0xff)))
+                    {
+                        fullClear = false;
+                    }
+                    else if (hasDepth && !clearDepth)
+                    {
+                        fullClear = false;
+                    }
+                }
+
+                if (fullClear)
+                {
+                    updateFlags |= RenderTargetUpdateFlags.DiscardClip;
+                }
+            }
+
+            engine.UpdateRenderTargetState(updateFlags, singleUse: componentMask != 0 ? index : -1);
+
             // Must happen after UpdateRenderTargetState to have up-to-date clip region values.
             bool clipMismatch = (screenScissorState.X | screenScissorState.Y) != 0 ||
                                 screenScissorState.Width != _channel.TextureManager.ClipRegionWidth ||
                                 screenScissorState.Height != _channel.TextureManager.ClipRegionHeight;
 
-            bool clearAffectedByStencilMask = (_state.State.ClearFlags & 1) != 0;
-            bool clearAffectedByScissor = (_state.State.ClearFlags & 0x100) != 0;
             bool needsCustomScissor = !clearAffectedByScissor || clipMismatch;
 
             // Scissor and rasterizer discard also affect clears.

src/Ryujinx.Graphics.Gpu/Engine/Threed/RenderTargetUpdateFlags.cs

@@ -33,6 +33,11 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
         /// </summary>
         UpdateDepthStencil = 1 << 3,
 
+        /// <summary>
+        /// Indicates that the data in the clip region can be discarded for the next use.
+        /// </summary>
+        DiscardClip = 1 << 4,
+
         /// <summary>
         /// Default update flags for draw.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Engine/Threed/StateUpdater.cs

@@ -447,6 +447,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
             bool useControl = updateFlags.HasFlag(RenderTargetUpdateFlags.UseControl);
             bool layered = updateFlags.HasFlag(RenderTargetUpdateFlags.Layered);
             bool singleColor = updateFlags.HasFlag(RenderTargetUpdateFlags.SingleColor);
+            bool discard = updateFlags.HasFlag(RenderTargetUpdateFlags.DiscardClip);
 
             int count = useControl ? rtControl.UnpackCount() : Constants.TotalRenderTargets;
 
@@ -486,6 +487,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
                     memoryManager,
                     colorState,
                     _vtgWritesRtLayer || layered,
+                    discard,
                     samplesInX,
                     samplesInY,
                     sizeHint);
@@ -525,6 +527,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
                     dsState,
                     dsSize,
                     _vtgWritesRtLayer || layered,
+                    discard,
                     samplesInX,
                     samplesInY,
                     sizeHint);

src/Ryujinx.Graphics.Gpu/Image/Texture.cs

@@ -570,6 +570,18 @@ namespace Ryujinx.Graphics.Gpu.Image
             return Group.CheckDirty(this, consume);
         }
 
+        /// <summary>
+        /// Discards all data for this texture.
+        /// This clears all dirty flags, modified flags, and pending copies from other textures.
+        /// It should be used if the texture data will be fully overwritten by the next use.
+        /// </summary>
+        public void DiscardData()
+        {
+            Group.DiscardData(this);
+
+            _dirty = false;
+        }
+
         /// <summary>
         /// Synchronizes guest and host memory.
         /// This will overwrite the texture data with the texture data on the guest memory, if a CPU

src/Ryujinx.Graphics.Gpu/Image/TextureCache.cs

@@ -311,7 +311,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                 flags |= TextureSearchFlags.NoCreate;
             }
 
-            Texture texture = FindOrCreateTexture(memoryManager, flags, info, 0);
+            Texture texture = FindOrCreateTexture(memoryManager, flags, info, 0, sizeHint: sizeHint);
 
             texture?.SynchronizeMemory();
 
@@ -324,6 +324,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="memoryManager">GPU memory manager where the texture is mapped</param>
         /// <param name="colorState">Color buffer texture to find or create</param>
         /// <param name="layered">Indicates if the texture might be accessed with a non-zero layer index</param>
+        /// <param name="discard">Indicates that the sizeHint region's data will be overwritten</param>
         /// <param name="samplesInX">Number of samples in the X direction, for MSAA</param>
         /// <param name="samplesInY">Number of samples in the Y direction, for MSAA</param>
         /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
@@ -332,6 +333,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             MemoryManager memoryManager,
             RtColorState colorState,
             bool layered,
+            bool discard,
             int samplesInX,
             int samplesInY,
             Size sizeHint)
@@ -398,7 +400,14 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             int layerSize = !isLinear ? colorState.LayerSize * 4 : 0;
 
-            Texture texture = FindOrCreateTexture(memoryManager, TextureSearchFlags.WithUpscale, info, layerSize);
+            var flags = TextureSearchFlags.WithUpscale;
+
+            if (discard)
+            {
+                flags |= TextureSearchFlags.DiscardData;
+            }
+
+            Texture texture = FindOrCreateTexture(memoryManager, flags, info, layerSize, sizeHint: sizeHint);
 
             texture?.SynchronizeMemory();
 
@@ -412,6 +421,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="dsState">Depth-stencil buffer texture to find or create</param>
         /// <param name="size">Size of the depth-stencil texture</param>
         /// <param name="layered">Indicates if the texture might be accessed with a non-zero layer index</param>
+        /// <param name="discard">Indicates that the sizeHint region's data will be overwritten</param>
         /// <param name="samplesInX">Number of samples in the X direction, for MSAA</param>
         /// <param name="samplesInY">Number of samples in the Y direction, for MSAA</param>
         /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
@@ -421,6 +431,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             RtDepthStencilState dsState,
             Size3D size,
             bool layered,
+            bool discard,
             int samplesInX,
             int samplesInY,
             Size sizeHint)
@@ -465,7 +476,14 @@ namespace Ryujinx.Graphics.Gpu.Image
                 target,
                 formatInfo);
 
-            Texture texture = FindOrCreateTexture(memoryManager, TextureSearchFlags.WithUpscale, info, dsState.LayerSize * 4);
+            var flags = TextureSearchFlags.WithUpscale;
+
+            if (discard)
+            {
+                flags |= TextureSearchFlags.DiscardData;
+            }
+
+            Texture texture = FindOrCreateTexture(memoryManager, flags, info, dsState.LayerSize * 4, sizeHint: sizeHint);
 
             texture?.SynchronizeMemory();
 
@@ -500,6 +518,37 @@ namespace Ryujinx.Graphics.Gpu.Image
             return Math.Clamp(widthAligned - alignment + 1, minimumWidth, widthAligned);
         }
 
+        /// <summary>
+        /// Determines if texture data should be fully discarded
+        /// based on the size hint region and whether it is set to be discarded.
+        /// </summary>
+        /// <param name="discard">Whether the size hint region should be discarded</param>
+        /// <param name="texture">The texture being discarded</param>
+        /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
+        /// <returns>True if the data should be discarded, false otherwise</returns>
+        private static bool ShouldDiscard(bool discard, Texture texture, Size? sizeHint)
+        {
+            return discard &&
+                texture.Info.DepthOrLayers == 1 &&
+                sizeHint != null &&
+                texture.Width <= sizeHint.Value.Width &&
+                texture.Height <= sizeHint.Value.Height;
+        }
+
+        /// <summary>
+        /// Discards texture data if requested and possible.
+        /// </summary>
+        /// <param name="discard">Whether the size hint region should be discarded</param>
+        /// <param name="texture">The texture being discarded</param>
+        /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
+        private static void DiscardIfNeeded(bool discard, Texture texture, Size? sizeHint)
+        {
+            if (ShouldDiscard(discard, texture, sizeHint))
+            {
+                texture.DiscardData();
+            }
+        }
+
         /// <summary>
         /// Tries to find an existing texture, or create a new one if not found.
         /// </summary>
@@ -507,6 +556,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="flags">The texture search flags, defines texture comparison rules</param>
         /// <param name="info">Texture information of the texture to be found or created</param>
         /// <param name="layerSize">Size in bytes of a single texture layer</param>
+        /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
         /// <param name="range">Optional ranges of physical memory where the texture data is located</param>
         /// <returns>The texture</returns>
         public Texture FindOrCreateTexture(
@@ -514,9 +564,11 @@ namespace Ryujinx.Graphics.Gpu.Image
             TextureSearchFlags flags,
             TextureInfo info,
             int layerSize = 0,
+            Size? sizeHint = null,
             MultiRange? range = null)
         {
             bool isSamplerTexture = (flags & TextureSearchFlags.ForSampler) != 0;
+            bool discard = (flags & TextureSearchFlags.DiscardData) != 0;
 
             TextureScaleMode scaleMode = IsUpscaleCompatible(info, (flags & TextureSearchFlags.WithUpscale) != 0);
 
@@ -612,6 +664,8 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             if (texture != null)
             {
+                DiscardIfNeeded(discard, texture, sizeHint);
+
                 texture.SynchronizeMemory();
 
                 return texture;
@@ -907,7 +961,7 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                 // We need to synchronize before copying the old view data to the texture,
                 // otherwise the copied data would be overwritten by a future synchronization.
-                texture.InitializeData(false, setData);
+                texture.InitializeData(false, setData && !ShouldDiscard(discard, texture, sizeHint));
 
                 texture.Group.InitializeOverlaps();
 

src/Ryujinx.Graphics.Gpu/Image/TextureGroup.cs

@@ -278,6 +278,24 @@ namespace Ryujinx.Graphics.Gpu.Image
             return dirty;
         }
 
+        /// <summary>
+        /// Discards all data for a given texture.
+        /// This clears all dirty flags, modified flags, and pending copies from other textures.
+        /// </summary>
+        /// <param name="texture">The texture being discarded</param>
+        public void DiscardData(Texture texture)
+        {
+            EvaluateRelevantHandles(texture, (baseHandle, regionCount, split) =>
+            {
+                for (int i = 0; i < regionCount; i++)
+                {
+                    TextureGroupHandle group = _handles[baseHandle + i];
+
+                    group.DiscardData();
+                }
+            });
+        }
+
         /// <summary>
         /// Synchronize memory for a given texture.
         /// If overlapping tracking handles are dirty, fully or partially synchronize the texture data.

src/Ryujinx.Graphics.Gpu/Image/TextureGroupHandle.cs

@@ -2,7 +2,6 @@
 using Ryujinx.Memory.Tracking;
 using System;
 using System.Collections.Generic;
-using System.Linq;
 using System.Threading;
 
 namespace Ryujinx.Graphics.Gpu.Image
@@ -155,6 +154,24 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
         }
 
+        /// <summary>
+        /// Discards all data for this handle.
+        /// This clears all dirty flags, modified flags, and pending copies from other handles.
+        /// </summary>
+        public void DiscardData()
+        {
+            Modified = false;
+            DeferredCopy = null;
+
+            foreach (RegionHandle handle in Handles)
+            {
+                if (handle.Dirty)
+                {
+                    handle.Reprotect();
+                }
+            }
+        }
+
         /// <summary>
         /// Calculate a list of which views overlap this handle.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Image/TextureSearchFlags.cs

@@ -14,5 +14,6 @@ namespace Ryujinx.Graphics.Gpu.Image
         DepthAlias = 1 << 3,
         WithUpscale = 1 << 4,
         NoCreate = 1 << 5,
+        DiscardData = 1 << 6,
     }
 }

src/Ryujinx.Graphics.Gpu/Window.cs

@@ -200,7 +200,7 @@ namespace Ryujinx.Graphics.Gpu
             {
                 pt.AcquireCallback(_context, pt.UserObj);
 
-                Image.Texture texture = pt.Cache.FindOrCreateTexture(null, TextureSearchFlags.WithUpscale, pt.Info, 0, pt.Range);
+                Image.Texture texture = pt.Cache.FindOrCreateTexture(null, TextureSearchFlags.WithUpscale, pt.Info, 0, range: pt.Range);
 
                 pt.Cache.Tick();
 

src/Ryujinx.HLE/HLEConfiguration.cs

@@ -1,6 +1,7 @@
 using LibHac.Tools.FsSystem;
 using Ryujinx.Audio.Integration;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Graphics.GAL;
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS;
@@ -158,6 +159,11 @@ namespace Ryujinx.HLE
         /// </summary>
         public string MultiplayerLanInterfaceId { internal get; set; }
 
+        /// <summary>
+        /// Multiplayer Mode
+        /// </summary>
+        public MultiplayerMode MultiplayerMode { internal get; set; }
+
         /// <summary>
         /// An action called when HLE force a refresh of output after docked mode changed.
         /// </summary>
@@ -187,7 +193,8 @@ namespace Ryujinx.HLE
                                 AspectRatio aspectRatio,
                                 float audioVolume,
                                 bool useHypervisor,
-                                string multiplayerLanInterfaceId)
+                                string multiplayerLanInterfaceId,
+                                MultiplayerMode multiplayerMode)
         {
             VirtualFileSystem = virtualFileSystem;
             LibHacHorizonManager = libHacHorizonManager;
@@ -214,6 +221,7 @@ namespace Ryujinx.HLE
             AudioVolume = audioVolume;
             UseHypervisor = useHypervisor;
             MultiplayerLanInterfaceId = multiplayerLanInterfaceId;
+            MultiplayerMode = multiplayerMode;
         }
     }
 }

src/Ryujinx.HLE/HOS/Horizon.cs

@@ -88,6 +88,7 @@ namespace Ryujinx.HLE.HOS
         internal ServerBase ViServer { get; private set; }
         internal ServerBase ViServerM { get; private set; }
         internal ServerBase ViServerS { get; private set; }
+        internal ServerBase LdnServer { get; private set; }
 
         internal KSharedMemory HidSharedMem { get; private set; }
         internal KSharedMemory FontSharedMem { get; private set; }
@@ -319,6 +320,7 @@ namespace Ryujinx.HLE.HOS
             ViServer = new ServerBase(KernelContext, "ViServerU");
             ViServerM = new ServerBase(KernelContext, "ViServerM");
             ViServerS = new ServerBase(KernelContext, "ViServerS");
+            LdnServer = new ServerBase(KernelContext, "LdnServer");
 
             StartNewServices();
         }

src/Ryujinx.HLE/HOS/Services/Ldn/IUserServiceCreator.cs

@@ -5,7 +5,7 @@ namespace Ryujinx.HLE.HOS.Services.Ldn
     [Service("ldn:u")]
     class IUserServiceCreator : IpcService
     {
-        public IUserServiceCreator(ServiceCtx context) { }
+        public IUserServiceCreator(ServiceCtx context) : base(context.Device.System.LdnServer) { }
 
         [CommandCmif(0)]
         // CreateUserLocalCommunicationService() -> object<nn::ldn::detail::IUserLocalCommunicationService>

src/Ryujinx.HLE/HOS/Services/Ldn/ResultCode.cs

@@ -7,10 +7,18 @@ namespace Ryujinx.HLE.HOS.Services.Ldn
 
         Success = 0,
 
+        DeviceNotAvailable = (16 << ErrorCodeShift) | ModuleId,
         DeviceDisabled = (22 << ErrorCodeShift) | ModuleId,
         InvalidState = (32 << ErrorCodeShift) | ModuleId,
-        Unknown1 = (48 << ErrorCodeShift) | ModuleId,
+        NodeNotFound = (48 << ErrorCodeShift) | ModuleId,
+        ConnectFailure = (64 << ErrorCodeShift) | ModuleId,
+        ConnectNotFound = (65 << ErrorCodeShift) | ModuleId,
+        ConnectTimeout = (66 << ErrorCodeShift) | ModuleId,
+        ConnectRejected = (67 << ErrorCodeShift) | ModuleId,
         InvalidArgument = (96 << ErrorCodeShift) | ModuleId,
         InvalidObject = (97 << ErrorCodeShift) | ModuleId,
+        VersionTooLow = (113 << ErrorCodeShift) | ModuleId,
+        VersionTooHigh = (114 << ErrorCodeShift) | ModuleId,
+        TooManyPlayers = (144 << ErrorCodeShift) | ModuleId,
     }
 }

src/Ryujinx.HLE/HOS/Services/Ldn/Types/AcceptPolicy.cs

@@ -0,0 +1,10 @@
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    enum AcceptPolicy : byte
+    {
+        AcceptAll,
+        RejectAll,
+        BlackList,
+        WhiteList,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/AddressEntry.cs

@@ -0,0 +1,13 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0xC)]
+    struct AddressEntry
+    {
+        public uint Ipv4Address;
+        public Array6<byte> MacAddress;
+        public ushort Reserved;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/AddressList.cs

@@ -0,0 +1,11 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x60)]
+    struct AddressList
+    {
+        public Array8<AddressEntry> Addresses;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/CommonNetworkInfo.cs

@@ -0,0 +1,16 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x30)]
+    struct CommonNetworkInfo
+    {
+        public Array6<byte> MacAddress;
+        public Ssid Ssid;
+        public ushort Channel;
+        public byte LinkLevel;
+        public byte NetworkType;
+        public uint Reserved;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/DisconnectReason.cs

@@ -0,0 +1,13 @@
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    enum DisconnectReason : uint
+    {
+        None,
+        DisconnectedByUser,
+        DisconnectedBySystem,
+        DestroyedByUser,
+        DestroyedBySystem,
+        Rejected,
+        SignalLost,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/IntentId.cs

@@ -0,0 +1,13 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x10)]
+    struct IntentId
+    {
+        public long LocalCommunicationId;
+        public ushort Reserved1;
+        public ushort SceneId;
+        public uint Reserved2;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/LdnNetworkInfo.cs

@@ -0,0 +1,23 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x430)]
+    struct LdnNetworkInfo
+    {
+        public Array16<byte> SecurityParameter;
+        public ushort SecurityMode;
+        public AcceptPolicy StationAcceptPolicy;
+        public byte Reserved1;
+        public ushort Reserved2;
+        public byte NodeCountMax;
+        public byte NodeCount;
+        public Array8<NodeInfo> Nodes;
+        public ushort Reserved3;
+        public ushort AdvertiseDataSize;
+        public Array384<byte> AdvertiseData;
+        public Array140<byte> Reserved4;
+        public ulong AuthenticationId;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NetworkConfig.cs

@@ -0,0 +1,16 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x20)]
+    struct NetworkConfig
+    {
+        public IntentId IntentId;
+        public ushort Channel;
+        public byte NodeCountMax;
+        public byte Reserved1;
+        public ushort LocalCommunicationVersion;
+        public Array10<byte> Reserved2;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NetworkId.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x20)]
+    struct NetworkId
+    {
+        public IntentId IntentId;
+        public Array16<byte> SessionId;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NetworkInfo.cs

@@ -0,0 +1,12 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x480)]
+    struct NetworkInfo
+    {
+        public NetworkId NetworkId;
+        public CommonNetworkInfo Common;
+        public LdnNetworkInfo Ldn;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NetworkType.cs

@@ -0,0 +1,10 @@
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    enum NetworkType : uint
+    {
+        None,
+        General,
+        Ldn,
+        All,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NodeInfo.cs

@@ -0,0 +1,18 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x40)]
+    struct NodeInfo
+    {
+        public uint Ipv4Address;
+        public Array6<byte> MacAddress;
+        public byte NodeId;
+        public byte IsConnected;
+        public Array33<byte> UserName;
+        public byte Reserved1;
+        public ushort LocalCommunicationVersion;
+        public Array16<byte> Reserved2;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NodeLatestUpdate.cs

@@ -0,0 +1,62 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 8)]
+    struct NodeLatestUpdate
+    {
+        public NodeLatestUpdateFlags State;
+        public Array7<byte> Reserved;
+    }
+
+    static class NodeLatestUpdateHelper
+    {
+        private static readonly object _lock = new();
+
+        public static void CalculateLatestUpdate(this Array8<NodeLatestUpdate> array, Array8<NodeInfo> beforeNodes, Array8<NodeInfo> afterNodes)
+        {
+            lock (_lock)
+            {
+                for (int i = 0; i < 8; i++)
+                {
+                    if (beforeNodes[i].IsConnected == 0)
+                    {
+                        if (afterNodes[i].IsConnected != 0)
+                        {
+                            array[i].State |= NodeLatestUpdateFlags.Connect;
+                        }
+                    }
+                    else
+                    {
+                        if (afterNodes[i].IsConnected == 0)
+                        {
+                            array[i].State |= NodeLatestUpdateFlags.Disconnect;
+                        }
+                    }
+                }
+            }
+        }
+
+        public static NodeLatestUpdate[] ConsumeLatestUpdate(this Array8<NodeLatestUpdate> array, int number)
+        {
+            NodeLatestUpdate[] result = new NodeLatestUpdate[number];
+
+            lock (_lock)
+            {
+                for (int i = 0; i < number; i++)
+                {
+                    result[i].Reserved = new Array7<byte>();
+
+                    if (i < 8)
+                    {
+                        result[i].State = array[i].State;
+                        array[i].State = NodeLatestUpdateFlags.None;
+                    }
+                }
+            }
+
+            return result;
+        }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/NodeLatestUpdateFlags.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [Flags]
+    enum NodeLatestUpdateFlags : byte
+    {
+        None = 0,
+        Connect = 1 << 0,
+        Disconnect = 1 << 1,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/ScanFilter.cs

@@ -0,0 +1,16 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x60)]
+    struct ScanFilter
+    {
+        public NetworkId NetworkId;
+        public NetworkType NetworkType;
+        public Array6<byte> MacAddress;
+        public Ssid Ssid;
+        public Array16<byte> Reserved;
+        public ScanFilterFlag Flag;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/ScanFilterFlag.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [Flags]
+    enum ScanFilterFlag : byte
+    {
+        LocalCommunicationId = 1 << 0,
+        SessionId = 1 << 1,
+        NetworkType = 1 << 2,
+        MacAddress = 1 << 3,
+        Ssid = 1 << 4,
+        SceneId = 1 << 5,
+        IntentId = LocalCommunicationId | SceneId,
+        NetworkId = IntentId | SessionId,
+        All = NetworkType | IntentId | SessionId | MacAddress | Ssid,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/SecurityConfig.cs

@@ -0,0 +1,13 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x44)]
+    struct SecurityConfig
+    {
+        public SecurityMode SecurityMode;
+        public ushort PassphraseSize;
+        public Array64<byte> Passphrase;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/SecurityMode.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    enum SecurityMode : ushort
+    {
+        All,
+        Retail,
+        Debug,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/SecurityParameter.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x20)]
+    struct SecurityParameter
+    {
+        public Array16<byte> Data;
+        public Array16<byte> SessionId;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/Ssid.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x22)]
+    struct Ssid
+    {
+        public byte Length;
+        public Array33<byte> Name;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/Types/UserConfig.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x30)]
+    struct UserConfig
+    {
+        public Array33<byte> UserName;
+        public Array15<byte> Unknown1;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/AccessPoint.cs

@@ -0,0 +1,104 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator
+{
+    class AccessPoint : IDisposable
+    {
+        private byte[] _advertiseData;
+
+        private readonly IUserLocalCommunicationService _parent;
+
+        public NetworkInfo NetworkInfo;
+        public Array8<NodeLatestUpdate> LatestUpdates = new();
+        public bool Connected { get; private set; }
+
+        public AccessPoint(IUserLocalCommunicationService parent)
+        {
+            _parent = parent;
+
+            _parent.NetworkClient.NetworkChange += NetworkChanged;
+        }
+
+        public void Dispose()
+        {
+            _parent.NetworkClient.DisconnectNetwork();
+
+            _parent.NetworkClient.NetworkChange -= NetworkChanged;
+        }
+
+        private void NetworkChanged(object sender, RyuLdn.NetworkChangeEventArgs e)
+        {
+            LatestUpdates.CalculateLatestUpdate(NetworkInfo.Ldn.Nodes, e.Info.Ldn.Nodes);
+
+            NetworkInfo = e.Info;
+
+            if (Connected != e.Connected)
+            {
+                Connected = e.Connected;
+
+                if (Connected)
+                {
+                    _parent.SetState(NetworkState.AccessPointCreated);
+                }
+                else
+                {
+                    _parent.SetDisconnectReason(e.DisconnectReasonOrDefault(DisconnectReason.DestroyedBySystem));
+                }
+            }
+            else
+            {
+                _parent.SetState();
+            }
+        }
+
+        public ResultCode SetAdvertiseData(byte[] advertiseData)
+        {
+            _advertiseData = advertiseData;
+
+            _parent.NetworkClient.SetAdvertiseData(_advertiseData);
+
+            return ResultCode.Success;
+        }
+
+        public ResultCode SetStationAcceptPolicy(AcceptPolicy acceptPolicy)
+        {
+            _parent.NetworkClient.SetStationAcceptPolicy(acceptPolicy);
+
+            return ResultCode.Success;
+        }
+
+        public ResultCode CreateNetwork(SecurityConfig securityConfig, UserConfig userConfig, NetworkConfig networkConfig)
+        {
+            CreateAccessPointRequest request = new()
+            {
+                SecurityConfig = securityConfig,
+                UserConfig = userConfig,
+                NetworkConfig = networkConfig,
+            };
+
+            bool success = _parent.NetworkClient.CreateNetwork(request, _advertiseData ?? Array.Empty<byte>());
+
+            return success ? ResultCode.Success : ResultCode.InvalidState;
+        }
+
+        public ResultCode CreateNetworkPrivate(SecurityConfig securityConfig, SecurityParameter securityParameter, UserConfig userConfig, NetworkConfig networkConfig, AddressList addressList)
+        {
+            CreateAccessPointPrivateRequest request = new()
+            {
+                SecurityConfig = securityConfig,
+                SecurityParameter = securityParameter,
+                UserConfig = userConfig,
+                NetworkConfig = networkConfig,
+                AddressList = addressList,
+            };
+
+            bool success = _parent.NetworkClient.CreateNetworkPrivate(request, _advertiseData);
+
+            return success ? ResultCode.Success : ResultCode.InvalidState;
+        }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/Network/Types/ConnectRequest.cs

@@ -0,0 +1,15 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x4FC)]
+    struct ConnectRequest
+    {
+        public SecurityConfig SecurityConfig;
+        public UserConfig UserConfig;
+        public uint LocalCommunicationVersion;
+        public uint OptionUnknown;
+        public NetworkInfo NetworkInfo;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/Network/Types/CreateAccessPointRequest.cs

@@ -0,0 +1,16 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types
+{
+    /// <remarks>
+    /// Advertise data is appended separately (remaining data in the buffer).
+    /// </remarks>
+    [StructLayout(LayoutKind.Sequential, Size = 0x94, CharSet = CharSet.Ansi)]
+    struct CreateAccessPointRequest
+    {
+        public SecurityConfig SecurityConfig;
+        public UserConfig UserConfig;
+        public NetworkConfig NetworkConfig;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/DisabledLdnClient.cs

@@ -0,0 +1,62 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn
+{
+    class DisabledLdnClient : INetworkClient
+    {
+        public event EventHandler<NetworkChangeEventArgs> NetworkChange;
+
+        public NetworkError Connect(ConnectRequest request)
+        {
+            NetworkChange?.Invoke(this, new NetworkChangeEventArgs(new NetworkInfo(), false));
+
+            return NetworkError.None;
+        }
+
+        public NetworkError ConnectPrivate(ConnectPrivateRequest request)
+        {
+            NetworkChange?.Invoke(this, new NetworkChangeEventArgs(new NetworkInfo(), false));
+
+            return NetworkError.None;
+        }
+
+        public bool CreateNetwork(CreateAccessPointRequest request, byte[] advertiseData)
+        {
+            NetworkChange?.Invoke(this, new NetworkChangeEventArgs(new NetworkInfo(), false));
+
+            return true;
+        }
+
+        public bool CreateNetworkPrivate(CreateAccessPointPrivateRequest request, byte[] advertiseData)
+        {
+            NetworkChange?.Invoke(this, new NetworkChangeEventArgs(new NetworkInfo(), false));
+
+            return true;
+        }
+
+        public void DisconnectAndStop() { }
+
+        public void DisconnectNetwork() { }
+
+        public ResultCode Reject(DisconnectReason disconnectReason, uint nodeId)
+        {
+            return ResultCode.Success;
+        }
+
+        public NetworkInfo[] Scan(ushort channel, ScanFilter scanFilter)
+        {
+            return Array.Empty<NetworkInfo>();
+        }
+
+        public void SetAdvertiseData(byte[] data) { }
+
+        public void SetGameVersion(byte[] versionString) { }
+
+        public void SetStationAcceptPolicy(AcceptPolicy acceptPolicy) { }
+
+        public void Dispose() { }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/INetworkClient.cs

@@ -0,0 +1,24 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn
+{
+    interface INetworkClient : IDisposable
+    {
+        event EventHandler<NetworkChangeEventArgs> NetworkChange;
+
+        void DisconnectNetwork();
+        void DisconnectAndStop();
+        NetworkError Connect(ConnectRequest request);
+        NetworkError ConnectPrivate(ConnectPrivateRequest request);
+        ResultCode Reject(DisconnectReason disconnectReason, uint nodeId);
+        NetworkInfo[] Scan(ushort channel, ScanFilter scanFilter);
+        void SetGameVersion(byte[] versionString);
+        void SetStationAcceptPolicy(AcceptPolicy acceptPolicy);
+        void SetAdvertiseData(byte[] data);
+        bool CreateNetwork(CreateAccessPointRequest request, byte[] advertiseData);
+        bool CreateNetworkPrivate(CreateAccessPointPrivateRequest request, byte[] advertiseData);
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/NetworkChangeEventArgs.cs

@@ -0,0 +1,24 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn
+{
+    class NetworkChangeEventArgs : EventArgs
+    {
+        public NetworkInfo Info;
+        public bool Connected;
+        public DisconnectReason DisconnectReason;
+
+        public NetworkChangeEventArgs(NetworkInfo info, bool connected, DisconnectReason disconnectReason = DisconnectReason.None)
+        {
+            Info = info;
+            Connected = connected;
+            DisconnectReason = disconnectReason;
+        }
+
+        public DisconnectReason DisconnectReasonOrDefault(DisconnectReason defaultReason)
+        {
+            return DisconnectReason == DisconnectReason.None ? defaultReason : DisconnectReason;
+        }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/Types/ConnectPrivateRequest.cs

@@ -0,0 +1,16 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0xBC)]
+    struct ConnectPrivateRequest
+    {
+        public SecurityConfig SecurityConfig;
+        public SecurityParameter SecurityParameter;
+        public UserConfig UserConfig;
+        public uint LocalCommunicationVersion;
+        public uint OptionUnknown;
+        public NetworkConfig NetworkConfig;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/Types/CreateAccessPointPrivateRequest.cs

@@ -0,0 +1,18 @@
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types
+{
+    /// <remarks>
+    /// Advertise data is appended separately (remaining data in the buffer).
+    /// </remarks>
+    [StructLayout(LayoutKind.Sequential, Size = 0x13C, Pack = 1)]
+    struct CreateAccessPointPrivateRequest
+    {
+        public SecurityConfig SecurityConfig;
+        public SecurityParameter SecurityParameter;
+        public UserConfig UserConfig;
+        public NetworkConfig NetworkConfig;
+        public AddressList AddressList;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/Types/NetworkError.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types
+{
+    enum NetworkError : int
+    {
+        None,
+
+        PortUnreachable,
+
+        TooManyPlayers,
+        VersionTooLow,
+        VersionTooHigh,
+
+        ConnectFailure,
+        ConnectNotFound,
+        ConnectTimeout,
+        ConnectRejected,
+
+        RejectFailed,
+
+        Unknown = -1,
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/RyuLdn/Types/NetworkErrorMessage.cs

@@ -0,0 +1,10 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types
+{
+    [StructLayout(LayoutKind.Sequential, Size = 0x4)]
+    struct NetworkErrorMessage
+    {
+        public NetworkError Error;
+    }
+}

src/Ryujinx.HLE/HOS/Services/Ldn/UserServiceCreator/Station.cs

@@ -0,0 +1,115 @@
+using Ryujinx.Common.Memory;
+using Ryujinx.HLE.HOS.Services.Ldn.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.Network.Types;
+using Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator.RyuLdn.Types;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Ldn.UserServiceCreator
+{
+    class Station : IDisposable
+    {
+        public NetworkInfo NetworkInfo;
+        public Array8<NodeLatestUpdate> LatestUpdates = new();
+
+        private readonly IUserLocalCommunicationService _parent;
+
+        public bool Connected { get; private set; }
+
+        public Station(IUserLocalCommunicationService parent)
+        {
+            _parent = parent;
+
+            _parent.NetworkClient.NetworkChange += NetworkChanged;
+        }
+
+        private void NetworkChanged(object sender, RyuLdn.NetworkChangeEventArgs e)
+        {
+            LatestUpdates.CalculateLatestUpdate(NetworkInfo.Ldn.Nodes, e.Info.Ldn.Nodes);
+
+            NetworkInfo = e.Info;
+
+            if (Connected != e.Connected)
+            {
+                Connected = e.Connected;
+
+                if (Connected)
+                {
+                    _parent.SetState(NetworkState.StationConnected);
+                }
+                else
+                {
+                    _parent.SetDisconnectReason(e.DisconnectReasonOrDefault(DisconnectReason.DestroyedByUser));
+                }
+            }
+            else
+            {
+                _parent.SetState();
+            }
+        }
+
+        public void Dispose()
+        {
+            _parent.NetworkClient.DisconnectNetwork();
+
+            _parent.NetworkClient.NetworkChange -= NetworkChanged;
+        }
+
+        private ResultCode NetworkErrorToResult(NetworkError error)
+        {
+            return error switch
+            {
+                NetworkError.None => ResultCode.Success,
+                NetworkError.VersionTooLow => ResultCode.VersionTooLow,
+                NetworkError.VersionTooHigh => ResultCode.VersionTooHigh,
+                NetworkError.TooManyPlayers => ResultCode.TooManyPlayers,
+
+                NetworkError.ConnectFailure => ResultCode.ConnectFailure,
+                NetworkError.ConnectNotFound => ResultCode.ConnectNotFound,
+                NetworkError.ConnectTimeout => ResultCode.ConnectTimeout,
+                NetworkError.ConnectRejected => ResultCode.ConnectRejected,
+
+                _ => ResultCode.DeviceNotAvailable,
+            };
+        }
+
+        public ResultCode Connect(
+            SecurityConfig securityConfig,
+            UserConfig userConfig,
+            uint localCommunicationVersion,
+            uint optionUnknown,
+            NetworkInfo networkInfo)
+        {
+            ConnectRequest request = new()
+            {
+                SecurityConfig = securityConfig,
+                UserConfig = userConfig,
+                LocalCommunicationVersion = localCommunicationVersion,
+                OptionUnknown = optionUnknown,
+                NetworkInfo = networkInfo,
+            };
+
+            return NetworkErrorToResult(_parent.NetworkClient.Connect(request));
+        }
+
+        public ResultCode ConnectPrivate(
+            SecurityConfig securityConfig,
+            SecurityParameter securityParameter,
+            UserConfig userConfig,
+            uint localCommunicationVersion,
+            uint optionUnknown,
+            NetworkConfig networkConfig)
+        {
+            ConnectPrivateRequest request = new()
+            {
+                SecurityConfig = securityConfig,
+                SecurityParameter = securityParameter,
+                UserConfig = userConfig,
+                LocalCommunicationVersion = localCommunicationVersion,
+                OptionUnknown = optionUnknown,
+                NetworkConfig = networkConfig,
+            };
+
+            return NetworkErrorToResult(_parent.NetworkClient.ConnectPrivate(request));
+        }
+    }
+}

src/Ryujinx.HLE/HOS/Services/Mii/Types/RandomMiiConstants.cs

@@ -320,7 +320,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
 
         private static ReadOnlySpan<byte> RandomMiiFacelineColorRawArray => new byte[]
@@ -399,8 +399,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-   ,     };
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiFacelineWrinkleRawArray => new byte[]
         {
@@ -633,8 +633,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-    ,    };
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiFacelineMakeRawArray => new byte[]
         {
@@ -867,8 +867,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-     ,   };
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiHairTypeRawArray => new byte[]
         {
@@ -1101,8 +1101,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-      ,  };
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiHairColorRawArray => new byte[]
         {
@@ -1218,8 +1218,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-       , };
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiEyeTypeRawArray => new byte[]
         {
@@ -1452,8 +1452,8 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x2e, 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-        ,};
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        };
 
         private static ReadOnlySpan<byte> RandomMiiEyeColorRawArray => new byte[]
         {
@@ -1493,7 +1493,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
 
         private static ReadOnlySpan<byte> RandomMiiEyebrowTypeRawArray => new byte[]
@@ -1727,7 +1727,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
 
         private static ReadOnlySpan<byte> RandomMiiNoseTypeRawArray => new byte[]
@@ -1961,7 +1961,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
 
         private static ReadOnlySpan<byte> RandomMiiMouthTypeRawArray => new byte[]
@@ -2195,7 +2195,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
 
         private static ReadOnlySpan<byte> RandomMiiGlassTypeRawArray => new byte[]
@@ -2236,7 +2236,7 @@ namespace Ryujinx.HLE.HOS.Services.Mii.Types
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
         };
         #endregion
     }

src/Ryujinx.Headless.SDL2/OpenGL/OpenGLWindow.cs

@@ -151,11 +151,15 @@ namespace Ryujinx.Headless.SDL2.OpenGL
             GL.Clear(ClearBufferMask.ColorBufferBit);
             SwapBuffers();
 
-            if (IsFullscreen)
+            if (IsExclusiveFullscreen)
+            {
+                Renderer?.Window.SetSize(ExclusiveFullscreenWidth, ExclusiveFullscreenHeight);
+                MouseDriver.SetClientSize(ExclusiveFullscreenWidth, ExclusiveFullscreenHeight);
+            }
+            else if (IsFullscreen)
             {
                 // NOTE: grabbing the main display's dimensions directly as OpenGL doesn't scale along like the VulkanWindow.
-                // we might have to amend this if people run this on a non-primary display set to a different resolution.
-                if (SDL_GetDisplayBounds(0, out SDL_Rect displayBounds) < 0)
+                if (SDL_GetDisplayBounds(DisplayId, out SDL_Rect displayBounds) < 0)
                 {
                     Logger.Warning?.Print(LogClass.Application, $"Could not retrieve display bounds: {SDL_GetError()}");
 

src/Ryujinx.Headless.SDL2/Options.cs

@@ -14,9 +14,21 @@ namespace Ryujinx.Headless.SDL2
         [Option("profile", Required = false, HelpText = "Set the user profile to launch the game with.")]
         public string UserProfile { get; set; }
 
-        [Option("fullscreen", Required = false, HelpText = "Launch the game in fullscreen mode.")]
+        [Option("display-id", Required = false, Default = 0, HelpText = "Set the display to use - especially helpful for fullscreen mode. [0-n]")]
+        public int DisplayId { get; set; }
+
+        [Option("fullscreen", Required = false, Default = false, HelpText = "Launch the game in fullscreen mode.")]
         public bool IsFullscreen { get; set; }
 
+        [Option("exclusive-fullscreen", Required = false, Default = false, HelpText = "Launch the game in exclusive fullscreen mode.")]
+        public bool IsExclusiveFullscreen { get; set; }
+
+        [Option("exclusive-fullscreen-width", Required = false, Default = 1920, HelpText = "Set horizontal resolution for exclusive fullscreen mode.")]
+        public int ExclusiveFullscreenWidth { get; set; }
+
+        [Option("exclusive-fullscreen-height", Required = false, Default = 1080, HelpText = "Set vertical resolution for exclusive fullscreen mode.")]
+        public int ExclusiveFullscreenHeight { get; set; }
+
         // Input
 
         [Option("input-profile-1", Required = false, HelpText = "Set the input profile in use for Player 1.")]
@@ -196,6 +208,15 @@ namespace Ryujinx.Headless.SDL2
         [Option("preferred-gpu-vendor", Required = false, Default = "", HelpText = "When using the Vulkan backend, prefer using the GPU from the specified vendor.")]
         public string PreferredGPUVendor { get; set; }
 
+        [Option("anti-aliasing", Required = false, Default = AntiAliasing.None, HelpText = "Set the type of anti aliasing being used. [None|Fxaa|SmaaLow|SmaaMedium|SmaaHigh|SmaaUltra]")]
+        public AntiAliasing AntiAliasing { get; set; }
+
+        [Option("scaling-filter", Required = false, Default = ScalingFilter.Bilinear, HelpText = "Set the scaling filter. [Bilinear|Nearest|Fsr]")]
+        public ScalingFilter ScalingFilter { get; set; }
+
+        [Option("scaling-filter-level", Required = false, Default = 0, HelpText = "Set the scaling filter intensity (currently only applies to FSR). [0-100]")]
+        public int ScalingFilterLevel { get; set; }
+
         // Hacks
 
         [Option("expand-ram", Required = false, Default = false, HelpText = "Expands the RAM amount on the emulated system from 4GiB to 6GiB.")]

src/Ryujinx.Headless.SDL2/Program.cs

@@ -556,7 +556,8 @@ namespace Ryujinx.Headless.SDL2
                 options.AspectRatio,
                 options.AudioVolume,
                 options.UseHypervisor ?? true,
-                options.MultiplayerLanInterfaceId);
+                options.MultiplayerLanInterfaceId,
+                Common.Configuration.Multiplayer.MultiplayerMode.Disabled);
 
             return new Switch(configuration);
         }
@@ -596,6 +597,13 @@ namespace Ryujinx.Headless.SDL2
             _window = window;
 
             _window.IsFullscreen = options.IsFullscreen;
+            _window.DisplayId = options.DisplayId;
+            _window.IsExclusiveFullscreen = options.IsExclusiveFullscreen;
+            _window.ExclusiveFullscreenWidth = options.ExclusiveFullscreenWidth;
+            _window.ExclusiveFullscreenHeight = options.ExclusiveFullscreenHeight;
+            _window.AntiAliasing = options.AntiAliasing;
+            _window.ScalingFilter = options.ScalingFilter;
+            _window.ScalingFilterLevel = options.ScalingFilterLevel;
 
             _emulationContext = InitializeEmulationContext(window, renderer, options);
 

src/Ryujinx.Headless.SDL2/Vulkan/VulkanWindow.cs

@@ -29,8 +29,16 @@ namespace Ryujinx.Headless.SDL2.Vulkan
 
         protected override void InitializeRenderer()
         {
-            Renderer?.Window.SetSize(DefaultWidth, DefaultHeight);
-            MouseDriver.SetClientSize(DefaultWidth, DefaultHeight);
+            if (IsExclusiveFullscreen)
+            {
+                Renderer?.Window.SetSize(ExclusiveFullscreenWidth, ExclusiveFullscreenHeight);
+                MouseDriver.SetClientSize(ExclusiveFullscreenWidth, ExclusiveFullscreenHeight);
+            }
+            else
+            {
+                Renderer?.Window.SetSize(DefaultWidth, DefaultHeight);
+                MouseDriver.SetClientSize(DefaultWidth, DefaultHeight);
+            }
         }
 
         private static void BasicInvoke(Action action)

src/Ryujinx.Headless.SDL2/WindowBase.cs

@@ -20,6 +20,8 @@ using System.IO;
 using System.Runtime.InteropServices;
 using System.Threading;
 using static SDL2.SDL;
+using AntiAliasing = Ryujinx.Common.Configuration.AntiAliasing;
+using ScalingFilter = Ryujinx.Common.Configuration.ScalingFilter;
 using Switch = Ryujinx.HLE.Switch;
 
 namespace Ryujinx.Headless.SDL2
@@ -28,8 +30,9 @@ namespace Ryujinx.Headless.SDL2
     {
         protected const int DefaultWidth = 1280;
         protected const int DefaultHeight = 720;
-        private const SDL_WindowFlags DefaultFlags = SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI | SDL_WindowFlags.SDL_WINDOW_RESIZABLE | SDL_WindowFlags.SDL_WINDOW_INPUT_FOCUS | SDL_WindowFlags.SDL_WINDOW_SHOWN;
         private const int TargetFps = 60;
+        private SDL_WindowFlags DefaultFlags = SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI | SDL_WindowFlags.SDL_WINDOW_RESIZABLE | SDL_WindowFlags.SDL_WINDOW_INPUT_FOCUS | SDL_WindowFlags.SDL_WINDOW_SHOWN;
+        private SDL_WindowFlags FullscreenFlag = 0;
 
         private static readonly ConcurrentQueue<Action> _mainThreadActions = new();
 
@@ -54,7 +57,14 @@ namespace Ryujinx.Headless.SDL2
         public IHostUiTheme HostUiTheme { get; }
         public int Width { get; private set; }
         public int Height { get; private set; }
+        public int DisplayId { get; set; }
         public bool IsFullscreen { get; set; }
+        public bool IsExclusiveFullscreen { get; set; }
+        public int ExclusiveFullscreenWidth { get; set; }
+        public int ExclusiveFullscreenHeight { get; set; }
+        public AntiAliasing AntiAliasing { get; set; }
+        public ScalingFilter ScalingFilter { get; set; }
+        public int ScalingFilterLevel { get; set; }
 
         protected SDL2MouseDriver MouseDriver;
         private readonly InputManager _inputManager;
@@ -158,9 +168,24 @@ namespace Ryujinx.Headless.SDL2
             string titleIdSection = string.IsNullOrWhiteSpace(activeProcess.ProgramIdText) ? string.Empty : $" ({activeProcess.ProgramIdText.ToUpper()})";
             string titleArchSection = activeProcess.Is64Bit ? " (64-bit)" : " (32-bit)";
 
-            SDL_WindowFlags fullscreenFlag = IsFullscreen ? SDL_WindowFlags.SDL_WINDOW_FULLSCREEN_DESKTOP : 0;
+            Width = DefaultWidth;
+            Height = DefaultHeight;
 
-            WindowHandle = SDL_CreateWindow($"Ryujinx {Program.Version}{titleNameSection}{titleVersionSection}{titleIdSection}{titleArchSection}", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, DefaultWidth, DefaultHeight, DefaultFlags | fullscreenFlag | GetWindowFlags());
+            if (IsExclusiveFullscreen)
+            {
+                Width = ExclusiveFullscreenWidth;
+                Height = ExclusiveFullscreenHeight;
+
+                DefaultFlags = SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI;
+                FullscreenFlag = SDL_WindowFlags.SDL_WINDOW_FULLSCREEN;
+            }
+            else if (IsFullscreen)
+            {
+                DefaultFlags = SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI;
+                FullscreenFlag = SDL_WindowFlags.SDL_WINDOW_FULLSCREEN_DESKTOP;
+            }
+
+            WindowHandle = SDL_CreateWindow($"Ryujinx {Program.Version}{titleNameSection}{titleVersionSection}{titleIdSection}{titleArchSection}", SDL_WINDOWPOS_CENTERED_DISPLAY(DisplayId), SDL_WINDOWPOS_CENTERED_DISPLAY(DisplayId), Width, Height, DefaultFlags | FullscreenFlag | GetWindowFlags());
 
             if (WindowHandle == IntPtr.Zero)
             {
@@ -175,9 +200,6 @@ namespace Ryujinx.Headless.SDL2
 
             _windowId = SDL_GetWindowID(WindowHandle);
             SDL2Driver.Instance.RegisterWindow(_windowId, HandleWindowEvent);
-
-            Width = DefaultWidth;
-            Height = DefaultHeight;
         }
 
         private void HandleWindowEvent(SDL_Event evnt)
@@ -189,8 +211,8 @@ namespace Ryujinx.Headless.SDL2
                     case SDL_WindowEventID.SDL_WINDOWEVENT_SIZE_CHANGED:
                         // Unlike on Windows, this event fires on macOS when triggering fullscreen mode.
                         // And promptly crashes the process because `Renderer?.window.SetSize` is undefined.
-                        // As we don't need this to fire in either case we can test for isFullscreen.
-                        if (!IsFullscreen)
+                        // As we don't need this to fire in either case we can test for fullscreen.
+                        if (!IsFullscreen && !IsExclusiveFullscreen)
                         {
                             Width = evnt.window.data1;
                             Height = evnt.window.data2;
@@ -225,6 +247,17 @@ namespace Ryujinx.Headless.SDL2
             return Renderer.GetHardwareInfo().GpuVendor;
         }
 
+        private void SetAntiAliasing()
+        {
+            Renderer?.Window.SetAntiAliasing((Graphics.GAL.AntiAliasing)AntiAliasing);
+        }
+
+        private void SetScalingFilter()
+        {
+            Renderer?.Window.SetScalingFilter((Graphics.GAL.ScalingFilter)ScalingFilter);
+            Renderer?.Window.SetScalingFilterLevel(ScalingFilterLevel);
+        }
+
         public void Render()
         {
             InitializeWindowRenderer();
@@ -233,6 +266,10 @@ namespace Ryujinx.Headless.SDL2
 
             InitializeRenderer();
 
+            SetAntiAliasing();
+
+            SetScalingFilter();
+
             _gpuVendorName = GetGpuVendorName();
 
             Device.Gpu.Renderer.RunLoop(() =>

src/Ryujinx.Ui.Common/Configuration/ConfigurationFileFormat.cs

@@ -1,5 +1,6 @@
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.Logging;
 using Ryujinx.Common.Utilities;
 using Ryujinx.Ui.Common.Configuration.System;
@@ -360,6 +361,11 @@ namespace Ryujinx.Ui.Common.Configuration
         /// </summary>
         public string PreferredGpu { get; set; }
 
+        /// <summary>
+        /// Multiplayer Mode
+        /// </summary>
+        public MultiplayerMode MultiplayerMode { get; set; }
+
         /// <summary>
         /// GUID for the network interface used by LAN (or 0 for default)
         /// </summary>

src/Ryujinx.Ui.Common/Configuration/ConfigurationState.cs

@@ -3,6 +3,7 @@ using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Configuration.Hid;
 using Ryujinx.Common.Configuration.Hid.Controller;
 using Ryujinx.Common.Configuration.Hid.Keyboard;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.Logging;
 using Ryujinx.Ui.Common.Configuration.System;
 using Ryujinx.Ui.Common.Configuration.Ui;
@@ -561,9 +562,15 @@ namespace Ryujinx.Ui.Common.Configuration
             /// </summary>
             public ReactiveObject<string> LanInterfaceId { get; private set; }
 
+            /// <summary>
+            /// Multiplayer Mode
+            /// </summary>
+            public ReactiveObject<MultiplayerMode> Mode { get; private set; }
+
             public MultiplayerSection()
             {
                 LanInterfaceId = new ReactiveObject<string>();
+                Mode = new ReactiveObject<MultiplayerMode>();
             }
         }
 
@@ -741,6 +748,7 @@ namespace Ryujinx.Ui.Common.Configuration
                 GraphicsBackend = Graphics.GraphicsBackend,
                 PreferredGpu = Graphics.PreferredGpu,
                 MultiplayerLanInterfaceId = Multiplayer.LanInterfaceId,
+                MultiplayerMode = Multiplayer.Mode,
             };
 
             return configurationFile;
@@ -795,6 +803,7 @@ namespace Ryujinx.Ui.Common.Configuration
             System.IgnoreMissingServices.Value = false;
             System.UseHypervisor.Value = true;
             Multiplayer.LanInterfaceId.Value = "0";
+            Multiplayer.Mode.Value = MultiplayerMode.Disabled;
             Ui.GuiColumns.FavColumn.Value = true;
             Ui.GuiColumns.IconColumn.Value = true;
             Ui.GuiColumns.AppColumn.Value = true;
@@ -1003,6 +1012,8 @@ namespace Ryujinx.Ui.Common.Configuration
                 configurationFileUpdated = true;
             }
 
+            // configurationFileFormat.Version == 13 -> LDN1
+
             if (configurationFileFormat.Version < 14)
             {
                 Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 14.");
@@ -1039,6 +1050,8 @@ namespace Ryujinx.Ui.Common.Configuration
                 configurationFileUpdated = true;
             }
 
+            // configurationFileFormat.Version == 19 -> LDN2
+
             if (configurationFileFormat.Version < 20)
             {
                 Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 20.");
@@ -1048,6 +1061,18 @@ namespace Ryujinx.Ui.Common.Configuration
                 configurationFileUpdated = true;
             }
 
+            if (configurationFileFormat.Version < 21)
+            {
+                Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 21.");
+
+                // Initialize network config.
+
+                configurationFileFormat.MultiplayerMode = MultiplayerMode.Disabled;
+                configurationFileFormat.MultiplayerLanInterfaceId = "0";
+
+                configurationFileUpdated = true;
+            }
+
             if (configurationFileFormat.Version < 22)
             {
                 Ryujinx.Common.Logging.Logger.Warning?.Print(LogClass.Application, $"Outdated configuration version {configurationFileFormat.Version}, migrating to version 22.");
@@ -1501,6 +1526,7 @@ namespace Ryujinx.Ui.Common.Configuration
             }
 
             Multiplayer.LanInterfaceId.Value = configurationFileFormat.MultiplayerLanInterfaceId;
+            Multiplayer.Mode.Value = configurationFileFormat.MultiplayerMode;
 
             if (configurationFileUpdated)
             {

src/Ryujinx/Ui/MainWindow.cs

@@ -13,6 +13,7 @@ using Ryujinx.Audio.Backends.SoundIo;
 using Ryujinx.Audio.Integration;
 using Ryujinx.Common;
 using Ryujinx.Common.Configuration;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.Logging;
 using Ryujinx.Common.SystemInterop;
 using Ryujinx.Cpu;
@@ -207,6 +208,9 @@ namespace Ryujinx.Ui
             ConfigurationState.Instance.System.EnableDockedMode.Event += UpdateDockedModeState;
             ConfigurationState.Instance.System.AudioVolume.Event += UpdateAudioVolumeState;
 
+            ConfigurationState.Instance.Multiplayer.Mode.Event += UpdateMultiplayerMode;
+            ConfigurationState.Instance.Multiplayer.LanInterfaceId.Event += UpdateMultiplayerLanInterfaceId;
+
             if (ConfigurationState.Instance.Ui.StartFullscreen)
             {
                 _startFullScreen.Active = true;
@@ -331,6 +335,22 @@ namespace Ryujinx.Ui
             InputManager = new InputManager(new GTK3KeyboardDriver(this), new SDL2GamepadDriver());
         }
 
+        private void UpdateMultiplayerLanInterfaceId(object sender, ReactiveEventArgs<string> args)
+        {
+            if (_emulationContext != null)
+            {
+                _emulationContext.Configuration.MultiplayerLanInterfaceId = args.NewValue;
+            }
+        }
+
+        private void UpdateMultiplayerMode(object sender, ReactiveEventArgs<MultiplayerMode> args)
+        {
+            if (_emulationContext != null)
+            {
+                _emulationContext.Configuration.MultiplayerMode = args.NewValue;
+            }
+        }
+
         private void UpdateIgnoreMissingServicesState(object sender, ReactiveEventArgs<bool> args)
         {
             if (_emulationContext != null)
@@ -649,7 +669,8 @@ namespace Ryujinx.Ui
                 ConfigurationState.Instance.Graphics.AspectRatio,
                 ConfigurationState.Instance.System.AudioVolume,
                 ConfigurationState.Instance.System.UseHypervisor,
-                ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value);
+                ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value,
+                ConfigurationState.Instance.Multiplayer.Mode);
 
             _emulationContext = new HLE.Switch(configuration);
         }

src/Ryujinx/Ui/Windows/SettingsWindow.cs

@@ -5,6 +5,7 @@ using Ryujinx.Audio.Backends.SDL2;
 using Ryujinx.Audio.Backends.SoundIo;
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Configuration.Hid;
+using Ryujinx.Common.Configuration.Multiplayer;
 using Ryujinx.Common.GraphicsDriver;
 using Ryujinx.HLE.FileSystem;
 using Ryujinx.HLE.HOS.Services.Time.TimeZone;
@@ -18,6 +19,7 @@ using System.Globalization;
 using System.IO;
 using System.Net.NetworkInformation;
 using System.Reflection;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using GUI = Gtk.Builder.ObjectAttribute;
 
@@ -87,6 +89,7 @@ namespace Ryujinx.Ui.Windows
         [GUI] Adjustment _systemTimeHourSpinAdjustment;
         [GUI] Adjustment _systemTimeMinuteSpinAdjustment;
         [GUI] ComboBoxText _multiLanSelect;
+        [GUI] ComboBoxText _multiModeSelect;
         [GUI] CheckButton _custThemeToggle;
         [GUI] Entry _custThemePath;
         [GUI] ToggleButton _browseThemePath;
@@ -361,6 +364,7 @@ namespace Ryujinx.Ui.Windows
             _graphicsBackend.Changed += (sender, e) => UpdatePreferredGpuComboBox();
             PopulateNetworkInterfaces();
             _multiLanSelect.SetActiveId(ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value);
+            _multiModeSelect.SetActiveId(ConfigurationState.Instance.Multiplayer.Mode.Value.ToString());
 
             _custThemePath.Buffer.Text = ConfigurationState.Instance.Ui.CustomThemePath;
             _resScaleText.Buffer.Text = ConfigurationState.Instance.Graphics.ResScaleCustom.Value.ToString();
@@ -658,6 +662,9 @@ namespace Ryujinx.Ui.Windows
 
             _previousVolumeLevel = ConfigurationState.Instance.System.AudioVolume.Value;
 
+            ConfigurationState.Instance.Multiplayer.Mode.Value = Enum.Parse<MultiplayerMode>(_multiModeSelect.ActiveId);
+            ConfigurationState.Instance.Multiplayer.LanInterfaceId.Value = _multiLanSelect.ActiveId;
+
             if (_audioBackendSelect.GetActiveIter(out TreeIter activeIter))
             {
                 ConfigurationState.Instance.System.AudioBackend.Value = (AudioBackend)_audioBackendStore.GetValue(activeIter, 1);

src/Ryujinx/Ui/Windows/SettingsWindow.glade

@@ -2933,6 +2933,96 @@
                         <property name="margin-right">10</property>
                         <property name="margin-top">5</property>
                         <property name="orientation">vertical</property>
+                        <child>
+                          <object class="GtkBox" id="CatMultiplayer">
+                            <property name="visible">True</property>
+                            <property name="can-focus">False</property>
+                            <property name="valign">start</property>
+                            <property name="margin-left">5</property>
+                            <property name="margin-right">5</property>
+                            <property name="orientation">vertical</property>
+                            <child>
+                              <object class="GtkLabel">
+                                <property name="visible">True</property>
+                                <property name="can-focus">False</property>
+                                <property name="halign">start</property>
+                                <property name="margin-bottom">5</property>
+                                <property name="label" translatable="yes">Multiplayer</property>
+                                <attributes>
+                                  <attribute name="weight" value="bold"/>
+                                </attributes>
+                              </object>
+                              <packing>
+                                <property name="expand">False</property>
+                                <property name="fill">True</property>
+                                <property name="position">0</property>
+                              </packing>
+                            </child>
+                            <child>
+                              <object class="GtkBox" id="MultiplayerOptions">
+                                <property name="visible">True</property>
+                                <property name="can-focus">False</property>
+                                <property name="valign">start</property>
+                                <property name="margin-left">10</property>
+                                <property name="margin-right">10</property>
+                                <property name="orientation">vertical</property>
+                                <child>
+                                  <object class="GtkBox" id="ModeBox">
+                                    <property name="visible">True</property>
+                                    <property name="can-focus">False</property>
+                                    <child>
+                                      <object class="GtkLabel">
+                                        <property name="visible">True</property>
+                                        <property name="can-focus">False</property>
+                                        <property name="tooltip-text" translatable="yes">Change Multiplayer Mode</property>
+                                        <property name="halign">end</property>
+                                        <property name="label" translatable="yes">Mode:</property>
+                                      </object>
+                                      <packing>
+                                        <property name="expand">False</property>
+                                        <property name="fill">True</property>
+                                        <property name="padding">5</property>
+                                        <property name="position">0</property>
+                                      </packing>
+                                    </child>
+                                    <child>
+                                      <object class="GtkComboBoxText" id="_multiModeSelect">
+                                        <property name="visible">True</property>
+                                        <property name="can-focus">False</property>
+                                        <property name="tooltip-text" translatable="yes">Change Multiplayer Mode</property>
+                                        <property name="active-id">Disabled</property>
+                                        <items>
+                                          <item id="Disabled" translatable="yes">Disabled</item>
+                                        </items>
+                                      </object>
+                                      <packing>
+                                        <property name="expand">False</property>
+                                        <property name="fill">True</property>
+                                        <property name="position">1</property>
+                                      </packing>
+                                    </child>
+                                  </object>
+                                  <packing>
+                                    <property name="expand">False</property>
+                                    <property name="fill">True</property>
+                                    <property name="position">3</property>
+                                  </packing>
+                                </child>
+                              </object>
+                              <packing>
+                                <property name="expand">True</property>
+                                <property name="fill">True</property>
+                                <property name="position">2</property>
+                              </packing>
+                            </child>
+                          </object>
+                          <packing>
+                            <property name="expand">False</property>
+                            <property name="fill">True</property>
+                            <property name="padding">5</property>
+                            <property name="position">0</property>
+                          </packing>
+                        </child>
                         <child>
                           <object class="GtkBox" id="CatLAN">
                             <property name="visible">True</property>