Replace and remove obsolete ByteMemoryPool type (#7155)

* refactor: replace usage of ByteMemoryPool with MemoryOwner<byte>

* refactor: delete unused ByteMemoryPool and ByteMemoryPool.ByteMemoryPoolBuffer types

* refactor: change IMemoryOwner<byte> return types to MemoryOwner<byte>

* fix(perf): get span via `MemoryOwner<T>.Span` directly instead of `MemoryOwner<T>.Memory.Span`

* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`

* fix(perf): get span via MemoryOwner<T>.Span directly instead of `MemoryOwner<T>.Memory.Span`

Directory.Packages.props

@@ -13,14 +13,14 @@
     <PackageVersion Include="CommandLineParser" Version="2.9.1" />
     <PackageVersion Include="Concentus" Version="2.2.0" />
     <PackageVersion Include="DiscordRichPresence" Version="1.2.1.24" />
-    <PackageVersion Include="DynamicData" Version="8.4.1" />
+    <PackageVersion Include="DynamicData" Version="9.0.1" />
     <PackageVersion Include="FluentAvaloniaUI" Version="2.0.5" />
     <PackageVersion Include="GtkSharp.Dependencies" Version="1.1.1" />
     <PackageVersion Include="GtkSharp.Dependencies.osx" Version="0.0.5" />
     <PackageVersion Include="LibHac" Version="0.19.0" />
     <PackageVersion Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp" Version="4.9.2" />
-    <PackageVersion Include="Microsoft.IdentityModel.JsonWebTokens" Version="7.6.2" />
+    <PackageVersion Include="Microsoft.IdentityModel.JsonWebTokens" Version="8.0.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageVersion Include="Microsoft.IO.RecyclableMemoryStream" Version="3.0.1" />
     <PackageVersion Include="MsgPack.Cli" Version="1.0.1" />

src/Ryujinx.Common/Memory/ByteMemoryPool.ByteMemoryPoolBuffer.cs

@@ -1,51 +0,0 @@
-using System;
-using System.Buffers;
-using System.Threading;
-
-namespace Ryujinx.Common.Memory
-{
-    public partial class ByteMemoryPool
-    {
-        /// <summary>
-        /// Represents a <see cref="IMemoryOwner{Byte}"/> that wraps an array rented from
-        /// <see cref="ArrayPool{Byte}.Shared"/> and exposes it as <see cref="Memory{Byte}"/>
-        /// with a length of the requested size.
-        /// </summary>
-        private sealed class ByteMemoryPoolBuffer : IMemoryOwner<byte>
-        {
-            private byte[] _array;
-            private readonly int _length;
-
-            public ByteMemoryPoolBuffer(int length)
-            {
-                _array = ArrayPool<byte>.Shared.Rent(length);
-                _length = length;
-            }
-
-            /// <summary>
-            /// Returns a <see cref="Memory{Byte}"/> belonging to this owner.
-            /// </summary>
-            public Memory<byte> Memory
-            {
-                get
-                {
-                    byte[] array = _array;
-
-                    ObjectDisposedException.ThrowIf(array is null, this);
-
-                    return new Memory<byte>(array, 0, _length);
-                }
-            }
-
-            public void Dispose()
-            {
-                var array = Interlocked.Exchange(ref _array, null);
-
-                if (array != null)
-                {
-                    ArrayPool<byte>.Shared.Return(array);
-                }
-            }
-        }
-    }
-}

src/Ryujinx.Common/Memory/ByteMemoryPool.cs

@@ -1,106 +0,0 @@
-using System;
-using System.Buffers;
-
-namespace Ryujinx.Common.Memory
-{
-    /// <summary>
-    /// Provides a pool of re-usable byte array instances.
-    /// </summary>
-    public static partial class ByteMemoryPool
-    {
-        /// <summary>
-        /// Returns the maximum buffer size supported by this pool.
-        /// </summary>
-        public static int MaxBufferSize => Array.MaxLength;
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer may contain data from a prior use.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> Rent(long length)
-            => RentImpl(checked((int)length));
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer may contain data from a prior use.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> Rent(ulong length)
-            => RentImpl(checked((int)length));
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer may contain data from a prior use.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> Rent(int length)
-            => RentImpl(length);
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer's contents are cleared (set to all 0s) before returning.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> RentCleared(long length)
-            => RentCleared(checked((int)length));
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer's contents are cleared (set to all 0s) before returning.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> RentCleared(ulong length)
-            => RentCleared(checked((int)length));
-
-        /// <summary>
-        /// Rents a byte memory buffer from <see cref="ArrayPool{Byte}.Shared"/>.
-        /// The buffer's contents are cleared (set to all 0s) before returning.
-        /// </summary>
-        /// <param name="length">The buffer's required length in bytes</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory</returns>
-        /// <exception cref="ArgumentOutOfRangeException"></exception>
-        public static IMemoryOwner<byte> RentCleared(int length)
-        {
-            var buffer = RentImpl(length);
-
-            buffer.Memory.Span.Clear();
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Copies <paramref name="buffer"/> into a newly rented byte memory buffer.
-        /// </summary>
-        /// <param name="buffer">The byte buffer to copy</param>
-        /// <returns>A <see cref="IMemoryOwner{Byte}"/> wrapping the rented memory with <paramref name="buffer"/> copied to it</returns>
-        public static IMemoryOwner<byte> RentCopy(ReadOnlySpan<byte> buffer)
-        {
-            var copy = RentImpl(buffer.Length);
-
-            buffer.CopyTo(copy.Memory.Span);
-
-            return copy;
-        }
-
-        private static ByteMemoryPoolBuffer RentImpl(int length)
-        {
-            if ((uint)length > Array.MaxLength)
-            {
-                throw new ArgumentOutOfRangeException(nameof(length), length, null);
-            }
-
-            return new ByteMemoryPoolBuffer(length);
-        }
-    }
-}

src/Ryujinx.Common/Utilities/EmbeddedResources.cs

@@ -1,6 +1,6 @@
+using Ryujinx.Common.Memory;
 using Ryujinx.Common.Utilities;
 using System;
-using System.Buffers;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -42,14 +42,14 @@ namespace Ryujinx.Common
             return StreamUtils.StreamToBytes(stream);
         }
 
-        public static IMemoryOwner<byte> ReadFileToRentedMemory(string filename)
+        public static MemoryOwner<byte> ReadFileToRentedMemory(string filename)
         {
             var (assembly, path) = ResolveManifestPath(filename);
 
             return ReadFileToRentedMemory(assembly, path);
         }
 
-        public static IMemoryOwner<byte> ReadFileToRentedMemory(Assembly assembly, string filename)
+        public static MemoryOwner<byte> ReadFileToRentedMemory(Assembly assembly, string filename)
         {
             using var stream = GetStream(assembly, filename);
 

src/Ryujinx.Common/Utilities/StreamUtils.cs

@@ -1,6 +1,5 @@
 using Microsoft.IO;
 using Ryujinx.Common.Memory;
-using System.Buffers;
 using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
@@ -16,7 +15,7 @@ namespace Ryujinx.Common.Utilities
             return output.ToArray();
         }
 
-        public static IMemoryOwner<byte> StreamToRentedMemory(Stream input)
+        public static MemoryOwner<byte> StreamToRentedMemory(Stream input)
         {
             if (input is MemoryStream inputMemoryStream)
             {
@@ -26,9 +25,9 @@ namespace Ryujinx.Common.Utilities
             {
                 long bytesExpected = input.Length;
 
-                IMemoryOwner<byte> ownedMemory = ByteMemoryPool.Rent(bytesExpected);
+                MemoryOwner<byte> ownedMemory = MemoryOwner<byte>.Rent(checked((int)bytesExpected));
 
-                var destSpan = ownedMemory.Memory.Span;
+                var destSpan = ownedMemory.Span;
 
                 int totalBytesRead = 0;
 
@@ -66,14 +65,14 @@ namespace Ryujinx.Common.Utilities
             return stream.ToArray();
         }
 
-        private static IMemoryOwner<byte> MemoryStreamToRentedMemory(MemoryStream input)
+        private static MemoryOwner<byte> MemoryStreamToRentedMemory(MemoryStream input)
         {
             input.Position = 0;
 
-            IMemoryOwner<byte> ownedMemory = ByteMemoryPool.Rent(input.Length);
+            MemoryOwner<byte> ownedMemory = MemoryOwner<byte>.Rent(checked((int)input.Length));
 
             // Discard the return value because we assume reading a MemoryStream always succeeds completely.
-            _ = input.Read(ownedMemory.Memory.Span);
+            _ = input.Read(ownedMemory.Span);
 
             return ownedMemory;
         }

src/Ryujinx.Cpu/Jit/MemoryManagerHostTracked.cs

@@ -303,9 +303,9 @@ namespace Ryujinx.Cpu.Jit
             }
             else
             {
-                IMemoryOwner<byte> memoryOwner = ByteMemoryPool.Rent(size);
+                MemoryOwner<byte> memoryOwner = MemoryOwner<byte>.Rent(size);
 
-                Read(va, memoryOwner.Memory.Span);
+                Read(va, memoryOwner.Span);
 
                 return new WritableRegion(this, va, memoryOwner);
             }

src/Ryujinx.Gtk3/Program.cs

@@ -256,6 +256,12 @@ namespace Ryujinx
             MainWindow mainWindow = new();
             mainWindow.Show();
 
+            // Load the game table if no application was requested by the command line
+            if (CommandLineState.LaunchPathArg == null)
+            {
+                mainWindow.UpdateGameTable();
+            }
+
             if (OperatingSystem.IsLinux())
             {
                 int currentVmMaxMapCount = LinuxHelper.VmMaxMapCount;

src/Ryujinx.Gtk3/UI/MainWindow.cs

@@ -187,7 +187,10 @@ namespace Ryujinx.UI
                 : IntegrityCheckLevel.None;
 
             // Instantiate GUI objects.
-            ApplicationLibrary = new ApplicationLibrary(_virtualFileSystem, checkLevel);
+            ApplicationLibrary = new ApplicationLibrary(_virtualFileSystem, checkLevel)
+            {
+                DesiredLanguage = ConfigurationState.Instance.System.Language,
+            };
             _uiHandler = new GtkHostUIHandler(this);
             _deviceExitStatus = new AutoResetEvent(false);
 
@@ -325,7 +328,6 @@ namespace Ryujinx.UI
             _hideUI.Label = _hideUI.Label.Replace("SHOWUIKEY", ConfigurationState.Instance.Hid.Hotkeys.Value.ShowUI.ToString());
 
             UpdateColumns();
-            UpdateGameTable();
 
             ConfigurationState.Instance.UI.GameDirs.Event += (sender, args) =>
             {
@@ -738,7 +740,8 @@ namespace Ryujinx.UI
 
             Thread applicationLibraryThread = new(() =>
             {
-                ApplicationLibrary.LoadApplications(ConfigurationState.Instance.UI.GameDirs, ConfigurationState.Instance.System.Language);
+                ApplicationLibrary.DesiredLanguage = ConfigurationState.Instance.System.Language;
+                ApplicationLibrary.LoadApplications(ConfigurationState.Instance.UI.GameDirs);
 
                 _updatingGameTable = false;
             })

src/Ryujinx.Memory/Range/IMultiRangeItem.cs

@@ -4,6 +4,22 @@ namespace Ryujinx.Memory.Range
     {
         MultiRange Range { get; }
 
-        ulong BaseAddress => Range.GetSubRange(0).Address;
+        ulong BaseAddress
+        {
+            get
+            {
+                for (int index = 0; index < Range.Count; index++)
+                {
+                    MemoryRange subRange = Range.GetSubRange(index);
+
+                    if (!MemoryRange.IsInvalid(ref subRange))
+                    {
+                        return subRange.Address;
+                    }
+                }
+
+                return MemoryRange.InvalidAddress;
+            }
+        }
     }
 }

src/Ryujinx.Memory/Range/MemoryRange.cs

@@ -5,6 +5,11 @@ namespace Ryujinx.Memory.Range
     /// </summary>
     public readonly record struct MemoryRange
     {
+        /// <summary>
+        /// Special address value used to indicate than an address is invalid.
+        /// </summary>
+        internal const ulong InvalidAddress = ulong.MaxValue;
+
         /// <summary>
         /// An empty memory range, with a null address and zero size.
         /// </summary>
@@ -58,13 +63,24 @@ namespace Ryujinx.Memory.Range
             return thisAddress < otherEndAddress && otherAddress < thisEndAddress;
         }
 
+        /// <summary>
+        /// Checks if a given sub-range of memory is invalid.
+        /// Those are used to represent unmapped memory regions (holes in the region mapping).
+        /// </summary>
+        /// <param name="subRange">Memory range to check</param>
+        /// <returns>True if the memory range is considered invalid, false otherwise</returns>
+        internal static bool IsInvalid(ref MemoryRange subRange)
+        {
+            return subRange.Address == InvalidAddress;
+        }
+
         /// <summary>
         /// Returns a string summary of the memory range.
         /// </summary>
         /// <returns>A string summary of the memory range</returns>
         public override string ToString()
         {
-            if (Address == ulong.MaxValue)
+            if (Address == InvalidAddress)
             {
                 return $"[Unmapped 0x{Size:X}]";
             }

src/Ryujinx.Memory/Range/MultiRangeList.cs

@@ -30,7 +30,7 @@ namespace Ryujinx.Memory.Range
             {
                 var subrange = range.GetSubRange(i);
 
-                if (IsInvalid(ref subrange))
+                if (MemoryRange.IsInvalid(ref subrange))
                 {
                     continue;
                 }
@@ -56,7 +56,7 @@ namespace Ryujinx.Memory.Range
             {
                 var subrange = range.GetSubRange(i);
 
-                if (IsInvalid(ref subrange))
+                if (MemoryRange.IsInvalid(ref subrange))
                 {
                     continue;
                 }
@@ -99,7 +99,7 @@ namespace Ryujinx.Memory.Range
             {
                 var subrange = range.GetSubRange(i);
 
-                if (IsInvalid(ref subrange))
+                if (MemoryRange.IsInvalid(ref subrange))
                 {
                     continue;
                 }
@@ -142,17 +142,6 @@ namespace Ryujinx.Memory.Range
             return overlapCount;
         }
 
-        /// <summary>
-        /// Checks if a given sub-range of memory is invalid.
-        /// Those are used to represent unmapped memory regions (holes in the region mapping).
-        /// </summary>
-        /// <param name="subRange">Memory range to checl</param>
-        /// <returns>True if the memory range is considered invalid, false otherwise</returns>
-        private static bool IsInvalid(ref MemoryRange subRange)
-        {
-            return subRange.Address == ulong.MaxValue;
-        }
-
         /// <summary>
         /// Gets all items on the list starting at the specified memory address.
         /// </summary>

src/Ryujinx.Memory/VirtualMemoryManagerBase.cs

@@ -130,9 +130,9 @@ namespace Ryujinx.Memory
             }
             else
             {
-                IMemoryOwner<byte> memoryOwner = ByteMemoryPool.Rent(size);
+                MemoryOwner<byte> memoryOwner = MemoryOwner<byte>.Rent(size);
 
-                Read(va, memoryOwner.Memory.Span);
+                Read(va, memoryOwner.Span);
 
                 return new WritableRegion(this, va, memoryOwner);
             }

src/Ryujinx.UI.Common/App/ApplicationLibrary.cs

@@ -34,6 +34,7 @@ namespace Ryujinx.UI.App.Common
 {
     public class ApplicationLibrary
     {
+        public Language DesiredLanguage { get; set; }
         public event EventHandler<ApplicationAddedEventArgs> ApplicationAdded;
         public event EventHandler<ApplicationCountUpdatedEventArgs> ApplicationCountUpdated;
 
@@ -45,7 +46,6 @@ namespace Ryujinx.UI.App.Common
 
         private readonly VirtualFileSystem _virtualFileSystem;
         private readonly IntegrityCheckLevel _checkLevel;
-        private Language _desiredTitleLanguage;
         private CancellationTokenSource _cancellationToken;
 
         private static readonly ApplicationJsonSerializerContext _serializerContext = new(JsonHelper.GetDefaultSerializerOptions());
@@ -221,7 +221,7 @@ namespace Ryujinx.UI.App.Common
                 {
                     using UniqueRef<IFile> icon = new();
 
-                    controlFs.OpenFile(ref icon.Ref, $"/icon_{_desiredTitleLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
+                    controlFs.OpenFile(ref icon.Ref, $"/icon_{DesiredLanguage}.dat".ToU8Span(), OpenMode.Read).ThrowIfFailure();
 
                     using MemoryStream stream = new();
 
@@ -432,35 +432,40 @@ namespace Ryujinx.UI.App.Common
 
             foreach (var data in applications)
             {
-                ApplicationMetadata appMetadata = LoadAndSaveMetaData(data.IdString, appMetadata =>
+                // Only load metadata for applications with an ID
+                if (data.Id != 0)
                 {
-                    appMetadata.Title = data.Name;
-
-                    // Only do the migration if time_played has a value and timespan_played hasn't been updated yet.
-                    if (appMetadata.TimePlayedOld != default && appMetadata.TimePlayed == TimeSpan.Zero)
+                    ApplicationMetadata appMetadata = LoadAndSaveMetaData(data.IdString, appMetadata =>
                     {
-                        appMetadata.TimePlayed = TimeSpan.FromSeconds(appMetadata.TimePlayedOld);
-                        appMetadata.TimePlayedOld = default;
-                    }
+                        appMetadata.Title = data.Name;
 
-                    // Only do the migration if last_played has a value and last_played_utc doesn't exist yet.
-                    if (appMetadata.LastPlayedOld != default && !appMetadata.LastPlayed.HasValue)
-                    {
-                        // Migrate from string-based last_played to DateTime-based last_played_utc.
-                        if (DateTime.TryParse(appMetadata.LastPlayedOld, out DateTime lastPlayedOldParsed))
+                        // Only do the migration if time_played has a value and timespan_played hasn't been updated yet.
+                        if (appMetadata.TimePlayedOld != default && appMetadata.TimePlayed == TimeSpan.Zero)
                         {
-                            appMetadata.LastPlayed = lastPlayedOldParsed;
-
-                            // Migration successful: deleting last_played from the metadata file.
-                            appMetadata.LastPlayedOld = default;
+                            appMetadata.TimePlayed = TimeSpan.FromSeconds(appMetadata.TimePlayedOld);
+                            appMetadata.TimePlayedOld = default;
                         }
 
-                    }
-                });
+                        // Only do the migration if last_played has a value and last_played_utc doesn't exist yet.
+                        if (appMetadata.LastPlayedOld != default && !appMetadata.LastPlayed.HasValue)
+                        {
+                            // Migrate from string-based last_played to DateTime-based last_played_utc.
+                            if (DateTime.TryParse(appMetadata.LastPlayedOld, out DateTime lastPlayedOldParsed))
+                            {
+                                appMetadata.LastPlayed = lastPlayedOldParsed;
+
+                                // Migration successful: deleting last_played from the metadata file.
+                                appMetadata.LastPlayedOld = default;
+                            }
+
+                        }
+                    });
+
+                    data.Favorite = appMetadata.Favorite;
+                    data.TimePlayed = appMetadata.TimePlayed;
+                    data.LastPlayed = appMetadata.LastPlayed;
+                }
 
-                data.Favorite = appMetadata.Favorite;
-                data.TimePlayed = appMetadata.TimePlayed;
-                data.LastPlayed = appMetadata.LastPlayed;
                 data.FileExtension = Path.GetExtension(applicationPath).TrimStart('.').ToUpper();
                 data.FileSize = fileSize;
                 data.Path = applicationPath;
@@ -482,13 +487,11 @@ namespace Ryujinx.UI.App.Common
             controlFile.Get.Read(out _, 0, outProperty, ReadOption.None).ThrowIfFailure();
         }
 
-        public void LoadApplications(List<string> appDirs, Language desiredTitleLanguage)
+        public void LoadApplications(List<string> appDirs)
         {
             int numApplicationsFound = 0;
             int numApplicationsLoaded = 0;
 
-            _desiredTitleLanguage = desiredTitleLanguage;
-
             _cancellationToken = new CancellationTokenSource();
 
             // Builds the applications list with paths to found applications
@@ -847,7 +850,7 @@ namespace Ryujinx.UI.App.Common
 
         private void GetApplicationInformation(ref ApplicationControlProperty controlData, ref ApplicationData data)
         {
-            _ = Enum.TryParse(_desiredTitleLanguage.ToString(), out TitleLanguage desiredTitleLanguage);
+            _ = Enum.TryParse(DesiredLanguage.ToString(), out TitleLanguage desiredTitleLanguage);
 
             if (controlData.Title.ItemsRo.Length > (int)desiredTitleLanguage)
             {

src/Ryujinx/Common/Locale/LocaleExtension.cs

@@ -21,7 +21,7 @@ namespace Ryujinx.Ava.Common.Locale
 
             var builder = new CompiledBindingPathBuilder();
 
-            builder.SetRawSource(LocaleManager.Instance)
+            builder
                 .Property(new ClrPropertyInfo("Item",
                 obj => (LocaleManager.Instance[keyToUse]),
                 null,
@@ -32,7 +32,10 @@ namespace Ryujinx.Ava.Common.Locale
 
             var path = builder.Build();
 
-            var binding = new CompiledBindingExtension(path);
+            var binding = new CompiledBindingExtension(path)
+            {
+                Source = LocaleManager.Instance
+            };
 
             return binding.ProvideValue(serviceProvider);
         }

src/Ryujinx/Common/Locale/LocaleManager.cs

@@ -139,9 +139,11 @@ namespace Ryujinx.Ava.Common.Locale
 
             foreach (var item in locale)
             {
-                this[item.Key] = item.Value;
+                _localeStrings[item.Key] = item.Value;
             }
 
+            OnPropertyChanged("Item");
+
             LocaleChanged?.Invoke();
         }
 

src/Ryujinx/UI/ViewModels/UserProfileViewModel.cs

@@ -1,7 +1,7 @@
-using Microsoft.IdentityModel.Tokens;
 using Ryujinx.Ava.UI.Models;
 using System;
 using System.Collections.ObjectModel;
+using System.Linq;
 
 namespace Ryujinx.Ava.UI.ViewModels
 {
@@ -11,7 +11,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         {
             Profiles = new ObservableCollection<BaseModel>();
             LostProfiles = new ObservableCollection<UserProfile>();
-            IsEmpty = LostProfiles.IsNullOrEmpty();
+            IsEmpty = !LostProfiles.Any();
         }
 
         public ObservableCollection<BaseModel> Profiles { get; set; }

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

@@ -37,6 +37,7 @@ namespace Ryujinx.Ava.UI.Windows
         internal static MainWindowViewModel MainWindowViewModel { get; private set; }
 
         private bool _isLoading;
+        private bool _applicationsLoadedOnce;
 
         private UserChannelPersistence _userChannelPersistence;
         private static bool _deferLoad;
@@ -224,7 +225,10 @@ namespace Ryujinx.Ava.UI.Windows
                 ? IntegrityCheckLevel.ErrorOnInvalid
                 : IntegrityCheckLevel.None;
 
-            ApplicationLibrary = new ApplicationLibrary(VirtualFileSystem, checkLevel);
+            ApplicationLibrary = new ApplicationLibrary(VirtualFileSystem, checkLevel)
+            {
+                DesiredLanguage = ConfigurationState.Instance.System.Language,
+            };
 
             // Save data created before we supported extra data in directory save data will not work properly if
             // given empty extra data. Luckily some of that extra data can be created using the data from the
@@ -472,7 +476,11 @@ namespace Ryujinx.Ava.UI.Windows
 
             ViewModel.RefreshFirmwareStatus();
 
-            LoadApplications();
+            // Load applications if no application was requested by the command line
+            if (!_deferLoad)
+            {
+                LoadApplications();
+            }
 
 #pragma warning disable CS4014 // Because this call is not awaited, execution of the current method continues before the call is completed
             CheckLaunchState();
@@ -485,6 +493,12 @@ namespace Ryujinx.Ava.UI.Windows
 
             if (MainContent.Content != content)
             {
+                // Load applications while switching to the GameLibrary if we haven't done that yet
+                if (!_applicationsLoadedOnce && content == GameLibrary)
+                {
+                    LoadApplications();
+                }
+
                 MainContent.Content = content;
             }
         }
@@ -581,6 +595,7 @@ namespace Ryujinx.Ava.UI.Windows
 
         public void LoadApplications()
         {
+            _applicationsLoadedOnce = true;
             ViewModel.Applications.Clear();
 
             StatusBarView.LoadProgressBar.IsVisible = true;
@@ -622,7 +637,8 @@ namespace Ryujinx.Ava.UI.Windows
 
             Thread applicationLibraryThread = new(() =>
             {
-                ApplicationLibrary.LoadApplications(ConfigurationState.Instance.UI.GameDirs, ConfigurationState.Instance.System.Language);
+                ApplicationLibrary.DesiredLanguage = ConfigurationState.Instance.System.Language;
+                ApplicationLibrary.LoadApplications(ConfigurationState.Instance.UI.GameDirs);
 
                 _isLoading = false;
             })