bcat ipc (#4446)

fix saving if directory path directly pasted in to the text field instead of using FileChooser.

Directory.Packages.props

@@ -44,7 +44,7 @@
     <PackageVersion Include="SixLabors.ImageSharp.Drawing" Version="1.0.0-beta11" />
     <PackageVersion Include="SPB" Version="0.0.4-build28" />
     <PackageVersion Include="System.Drawing.Common" Version="7.0.0" />
-    <PackageVersion Include="System.IdentityModel.Tokens.Jwt" Version="6.29.0" />
+    <PackageVersion Include="System.IdentityModel.Tokens.Jwt" Version="6.30.0" />
     <PackageVersion Include="System.IO.Hashing" Version="7.0.0" />
     <PackageVersion Include="System.Management" Version="7.0.1" />
     <PackageVersion Include="UnicornEngine.Unicorn" Version="2.0.2-rc1-fb78016" />

distribution/macos/create_app_bundle.sh

@@ -41,12 +41,10 @@ then
         exit 1
     fi
 
-    # NOTE: Currently require https://github.com/indygreg/apple-platform-rs/pull/44 to work on other OSes.
-    # cargo install --git "https://github.com/marysaka/apple-platform-rs" --branch "fix/adhoc-app-bundle" apple-codesign --bin "rcodesign"
+    # cargo install apple-codesign
     echo "Usign rcodesign for ad-hoc signing"
     rcodesign sign --entitlements-xml-path "$ENTITLEMENTS_FILE_PATH" "$APP_BUNDLE_DIRECTORY"
 else
     echo "Usign codesign for ad-hoc signing"
     codesign --entitlements "$ENTITLEMENTS_FILE_PATH" -f --deep -s - "$APP_BUNDLE_DIRECTORY"
-fi
-
+fi

distribution/macos/create_macos_release.sh

@@ -30,14 +30,14 @@ mkdir -p "$TEMP_DIRECTORY"
 DOTNET_COMMON_ARGS="-p:DebugType=embedded -p:Version=$VERSION -p:SourceRevisionId=$SOURCE_REVISION_ID --self-contained true"
 
 dotnet restore
-dotnet build -c Release Ryujinx.Ava
-dotnet publish -c Release -r osx-arm64 -o "$TEMP_DIRECTORY/publish_arm64" $DOTNET_COMMON_ARGS Ryujinx.Ava
-dotnet publish -c Release -r osx-x64 -o "$TEMP_DIRECTORY/publish_x64" $DOTNET_COMMON_ARGS Ryujinx.Ava
+dotnet build -c Release src/Ryujinx.Ava
+dotnet publish -c Release -r osx-arm64 -o "$TEMP_DIRECTORY/publish_arm64" $DOTNET_COMMON_ARGS src/Ryujinx.Ava
+dotnet publish -c Release -r osx-x64 -o "$TEMP_DIRECTORY/publish_x64" $DOTNET_COMMON_ARGS src/Ryujinx.Ava
 
-# Get ride of the support library for ARMeilleur for x64 (that's only for arm64)
+# Get rid of the support library for ARMeilleure for x64 (that's only for arm64)
 rm -rf "$TEMP_DIRECTORY/publish_x64/libarmeilleure-jitsupport.dylib"
 
-# Get ride of libsoundio from arm64 builds as we don't have a arm64 variant
+# Get rid of libsoundio from arm64 builds as we don't have a arm64 variant
 # TODO: remove this once done
 rm -rf "$TEMP_DIRECTORY/publish_arm64/libsoundio.dylib"
 
@@ -102,4 +102,4 @@ gzip -9 < $RELEASE_TAR_FILE_NAME > $RELEASE_TAR_FILE_NAME.gz
 rm $RELEASE_TAR_FILE_NAME
 popd
 
-echo "Done"
+echo "Done"

src/Ryujinx.Ava/AppHost.cs

@@ -157,7 +157,7 @@ namespace Ryujinx.Ava
                 _isFirmwareTitle = true;
             }
 
-            ConfigurationState.Instance.HideCursorOnIdle.Event += HideCursorState_Changed;
+            ConfigurationState.Instance.HideCursor.Event += HideCursorState_Changed;
 
             _topLevel.PointerMoved += TopLevel_PointerMoved;
 
@@ -468,9 +468,9 @@ namespace Ryujinx.Ava
             (_rendererHost.EmbeddedWindow as EmbeddedWindowOpenGL)?.MakeCurrent(null);
         }
 
-        private void HideCursorState_Changed(object sender, ReactiveEventArgs<bool> state)
+        private void HideCursorState_Changed(object sender, ReactiveEventArgs<HideCursorMode> state)
         {
-            if (state.NewValue)
+            if (state.NewValue == HideCursorMode.OnIdle)
             {
                 _lastCursorMoveTime = Stopwatch.GetTimestamp();
             }
@@ -965,30 +965,38 @@ namespace Ryujinx.Ava
 
             if (_viewModel.IsActive)
             {
-                if (ConfigurationState.Instance.Hid.EnableMouse)
+                if (_isCursorInRenderer)
                 {
-                    if (_isCursorInRenderer)
+                    if (ConfigurationState.Instance.Hid.EnableMouse)
                     {
                         HideCursor();
                     }
                     else
                     {
-                        ShowCursor();
+                        switch (ConfigurationState.Instance.HideCursor.Value)
+                        {
+                            case HideCursorMode.Never:
+                                ShowCursor();
+                                break;
+                            case HideCursorMode.OnIdle:
+                                if (Stopwatch.GetTimestamp() - _lastCursorMoveTime >= CursorHideIdleTime * Stopwatch.Frequency)
+                                {
+                                    HideCursor();
+                                }
+                                else
+                                {
+                                    ShowCursor();
+                                }
+                                break;
+                            case HideCursorMode.Always:
+                                HideCursor();
+                                break;
+                        }
                     }
                 }
                 else
                 {
-                    if (ConfigurationState.Instance.HideCursorOnIdle)
-                    {
-                        if (Stopwatch.GetTimestamp() - _lastCursorMoveTime >= CursorHideIdleTime * Stopwatch.Frequency)
-                        {
-                            HideCursor();
-                        }
-                        else
-                        {
-                            ShowCursor();
-                        }
-                    }
+                    ShowCursor();
                 }
 
                 Dispatcher.UIThread.Post(() =>
@@ -1133,4 +1141,4 @@ namespace Ryujinx.Ava
             return state;
         }
     }
-}
+}

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

@@ -80,7 +80,10 @@
   "SettingsTabGeneralEnableDiscordRichPresence": "Enable Discord Rich Presence",
   "SettingsTabGeneralCheckUpdatesOnLaunch": "Check for Updates on Launch",
   "SettingsTabGeneralShowConfirmExitDialog": "Show \"Confirm Exit\" Dialog",
-  "SettingsTabGeneralHideCursorOnIdle": "Hide Cursor on Idle",
+  "SettingsTabGeneralHideCursor": "Hide Cursor:",
+  "SettingsTabGeneralHideCursorNever": "Never",
+  "SettingsTabGeneralHideCursorOnIdle": "On Idle",
+  "SettingsTabGeneralHideCursorAlways": "Always",
   "SettingsTabGeneralGameDirectories": "Game Directories",
   "SettingsTabGeneralAdd": "Add",
   "SettingsTabGeneralRemove": "Remove",

src/Ryujinx.Ava/Program.cs

@@ -183,6 +183,18 @@ namespace Ryujinx.Ava
             {
                 ConfigurationState.Instance.System.EnableDockedMode.Value = CommandLineState.OverrideDockedMode.Value;
             }
+
+            // Check if HideCursor was overridden.
+            if (CommandLineState.OverrideHideCursor is not null)
+            {
+                ConfigurationState.Instance.HideCursor.Value = CommandLineState.OverrideHideCursor!.ToLower() switch
+                {
+                    "never" => HideCursorMode.Never,
+                    "onidle" => HideCursorMode.OnIdle,
+                    "always" => HideCursorMode.Always,
+                    _ => ConfigurationState.Instance.HideCursor.Value
+                };
+            }
         }
 
         private static void PrintSystemInfo()
@@ -226,4 +238,4 @@ namespace Ryujinx.Ava
             Logger.Shutdown();
         }
     }
-}
+}

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

@@ -95,6 +95,9 @@ namespace Ryujinx.Ava.UI.ViewModels
         private string _currentEmulatedGamePath;
         private AutoResetEvent _rendererWaitEvent;
         private WindowState _windowState;
+        private double _windowWidth;
+        private double _windowHeight;
+
         private bool _isActive;
 
         public ApplicationData ListSelectedApplication;
@@ -622,6 +625,28 @@ namespace Ryujinx.Ava.UI.ViewModels
                 OnPropertyChanged();
             }
         }
+        
+        public double WindowWidth
+        {
+            get => _windowWidth;
+            set
+            {
+                _windowWidth = value;
+
+                OnPropertyChanged();
+            }
+        }
+
+        public double WindowHeight
+        {
+            get => _windowHeight;
+            set
+            {
+                _windowHeight = value;
+
+                OnPropertyChanged();
+            }
+        }
 
         public bool IsGrid => Glyph == Glyph.Grid;
         public bool IsList => Glyph == Glyph.List;

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

@@ -132,7 +132,7 @@ namespace Ryujinx.Ava.UI.ViewModels
         public bool EnableDiscordIntegration { get; set; }
         public bool CheckUpdatesOnStart { get; set; }
         public bool ShowConfirmExit { get; set; }
-        public bool HideCursorOnIdle { get; set; }
+        public int HideCursor { get; set; }
         public bool EnableDockedMode { get; set; }
         public bool EnableKeyboard { get; set; }
         public bool EnableMouse { get; set; }
@@ -375,7 +375,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             EnableDiscordIntegration = config.EnableDiscordIntegration;
             CheckUpdatesOnStart = config.CheckUpdatesOnStart;
             ShowConfirmExit = config.ShowConfirmExit;
-            HideCursorOnIdle = config.HideCursorOnIdle;
+            HideCursor = (int)config.HideCursor.Value;
 
             GameDirectories.Clear();
             GameDirectories.AddRange(config.Ui.GameDirs.Value);
@@ -458,7 +458,7 @@ namespace Ryujinx.Ava.UI.ViewModels
             config.EnableDiscordIntegration.Value = EnableDiscordIntegration;
             config.CheckUpdatesOnStart.Value = CheckUpdatesOnStart;
             config.ShowConfirmExit.Value = ShowConfirmExit;
-            config.HideCursorOnIdle.Value = HideCursorOnIdle;
+            config.HideCursor.Value = (HideCursorMode)HideCursor;
 
             if (_directoryChanged)
             {

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

@@ -1,4 +1,4 @@
-<UserControl 
+<UserControl
     x:Class="Ryujinx.Ava.UI.Views.Settings.SettingsUIView"
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
@@ -12,7 +12,7 @@
     <Design.DataContext>
         <viewModels:SettingsViewModel />
     </Design.DataContext>
-    <ScrollViewer 
+    <ScrollViewer
         Name="UiPage"
         HorizontalAlignment="Stretch"
         VerticalAlignment="Stretch"
@@ -37,9 +37,24 @@
                     <CheckBox IsChecked="{Binding ShowConfirmExit}">
                         <TextBlock Text="{locale:Locale SettingsTabGeneralShowConfirmExitDialog}" />
                     </CheckBox>
-                    <CheckBox IsChecked="{Binding HideCursorOnIdle}">
-                        <TextBlock Text="{locale:Locale SettingsTabGeneralHideCursorOnIdle}" />
-                    </CheckBox>
+                    <StackPanel Margin="0, 15, 0, 10" Orientation="Horizontal">
+                        <TextBlock VerticalAlignment="Center"
+                                   Text="{locale:Locale SettingsTabGeneralHideCursor}"
+                                   Width="150" />
+                        <ComboBox SelectedIndex="{Binding HideCursor}"
+                                  HorizontalContentAlignment="Left"
+                                  MinWidth="100">
+                            <ComboBoxItem>
+                                <TextBlock Text="{locale:Locale SettingsTabGeneralHideCursorNever}" />
+                            </ComboBoxItem>
+                            <ComboBoxItem>
+                                <TextBlock Text="{locale:Locale SettingsTabGeneralHideCursorOnIdle}" />
+                            </ComboBoxItem>
+                            <ComboBoxItem>
+                                <TextBlock Text="{locale:Locale SettingsTabGeneralHideCursorAlways}" />
+                            </ComboBoxItem>
+                        </ComboBox>
+                    </StackPanel>
                 </StackPanel>
                 <Separator Height="1" />
                 <TextBlock Classes="h1" Text="{locale:Locale SettingsTabGeneralGameDirectories}" />
@@ -105,7 +120,7 @@
                         <RowDefinition />
                         <RowDefinition />
                     </Grid.RowDefinitions>
-                    <CheckBox 
+                    <CheckBox
                         IsChecked="{Binding EnableCustomTheme}"
                         ToolTip.Tip="{locale:Locale CustomThemeCheckTooltip}">
                         <TextBlock Text="{locale:Locale SettingsTabGeneralThemeEnableCustomTheme}" />
@@ -122,7 +137,7 @@
                         Grid.Column="1"
                         Margin="0,10,0,0"
                         Text="{Binding CustomThemePath}" />
-                    <Button 
+                    <Button
                         Grid.Row="1"
                         Grid.Column="2"
                         Margin="10,10,0,0"
@@ -153,4 +168,4 @@
             </StackPanel>
         </Border>
     </ScrollViewer>
-</UserControl>
+</UserControl>

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

@@ -12,15 +12,14 @@
     Cursor="{Binding Cursor}"
     Title="{Binding Title}"
     WindowState="{Binding WindowState}"
-    Width="1280"
-    Height="777"
+    Width="{Binding WindowWidth}"
+    Height="{Binding WindowHeight}"
     MinWidth="1092"
     MinHeight="672"
     d:DesignHeight="720"
     d:DesignWidth="1280"
     x:CompileBindings="True"
     x:DataType="viewModels:MainWindowViewModel"
-    WindowStartupLocation="CenterScreen"
     mc:Ignorable="d"
     Focusable="True">
     <Window.Styles>

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

@@ -62,6 +62,8 @@ namespace Ryujinx.Ava.UI.Windows
 
             DataContext = ViewModel;
 
+            SetWindowSizePosition();
+
             InitializeComponent();
             Load();
 
@@ -297,6 +299,51 @@ namespace Ryujinx.Ava.UI.Windows
             LoadHotKeys();
         }
 
+        private void SetWindowSizePosition()
+        {
+            PixelPoint SavedPoint = new PixelPoint(ConfigurationState.Instance.Ui.WindowStartup.WindowPositionX, 
+                                                   ConfigurationState.Instance.Ui.WindowStartup.WindowPositionY);
+
+            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;
+        
+            if (CheckScreenBounds(SavedPoint))
+            {
+                Position = SavedPoint;
+            }
+
+            else WindowStartupLocation = WindowStartupLocation.CenterScreen;
+        }
+
+        private bool CheckScreenBounds(PixelPoint configPoint)
+        {   
+            for (int i = 0; i < Screens.ScreenCount; i++)
+            {
+                if (Screens.All[i].Bounds.Contains(configPoint))
+                {
+                    return true;
+                }
+            }
+
+            Logger.Warning?.Print(LogClass.Application, $"Failed to find valid start-up coordinates. Defaulting to primary monitor center.");
+            return false;
+        }
+
+        private void SaveWindowSizePosition()
+        {
+            ConfigurationState.Instance.Ui.WindowStartup.WindowSizeHeight.Value = (int)Height;
+            ConfigurationState.Instance.Ui.WindowStartup.WindowSizeWidth.Value = (int)Width;
+
+            ConfigurationState.Instance.Ui.WindowStartup.WindowPositionX.Value = Position.X;
+            ConfigurationState.Instance.Ui.WindowStartup.WindowPositionY.Value = Position.Y;
+
+            ConfigurationState.Instance.Ui.WindowStartup.WindowMaximized.Value = WindowState == WindowState.Maximized;
+
+            MainWindowViewModel.SaveConfig();
+        }
+
         protected override void OnOpened(EventArgs e)
         {
             base.OnOpened(e);
@@ -388,6 +435,8 @@ namespace Ryujinx.Ava.UI.Windows
                 return;
             }
 
+            SaveWindowSizePosition();
+
             ApplicationLibrary.CancelLoading();
             InputManager.Dispose();
             Program.Exit();

src/Ryujinx.Common/Configuration/HideCursorMode.cs

@@ -0,0 +1,9 @@
+namespace Ryujinx.Common.Configuration
+{
+    public enum HideCursorMode
+    {
+        Never,
+        OnIdle,
+        Always
+    }
+}

src/Ryujinx.Graphics.GAL/BufferAccess.cs

@@ -0,0 +1,8 @@
+namespace Ryujinx.Graphics.GAL
+{
+    public enum BufferAccess
+    {
+        Default,
+        FlushPersistent
+    }
+}

src/Ryujinx.Graphics.GAL/IRenderer.cs

@@ -21,11 +21,14 @@ namespace Ryujinx.Graphics.GAL
         {
             return CreateBuffer(size, BufferHandle.Null);
         }
+        BufferHandle CreateBuffer(nint pointer, int size);
+        BufferHandle CreateBuffer(int size, BufferAccess access);
 
         IProgram CreateProgram(ShaderSource[] shaders, ShaderInfo info);
 
         ISampler CreateSampler(SamplerCreateInfo info);
         ITexture CreateTexture(TextureCreateInfo info, float scale);
+        bool PrepareHostMapping(nint address, ulong size);
 
         void CreateSync(ulong id, bool strict);
 

src/Ryujinx.Graphics.GAL/ITexture.cs

@@ -12,6 +12,7 @@ namespace Ryujinx.Graphics.GAL
         void CopyTo(ITexture destination, int firstLayer, int firstLevel);
         void CopyTo(ITexture destination, int srcLayer, int dstLayer, int srcLevel, int dstLevel);
         void CopyTo(ITexture destination, Extents2D srcRegion, Extents2D dstRegion, bool linearFilter);
+        void CopyTo(BufferRange range, int layer, int level, int stride);
 
         ITexture CreateView(TextureCreateInfo info, int firstLayer, int firstLevel);
 

src/Ryujinx.Graphics.GAL/Multithreading/CommandHelper.cs

@@ -43,6 +43,8 @@ namespace Ryujinx.Graphics.GAL.Multithreading
 
             Register<ActionCommand>(CommandType.Action);
             Register<CreateBufferCommand>(CommandType.CreateBuffer);
+            Register<CreateBufferAccessCommand>(CommandType.CreateBufferAccess);
+            Register<CreateHostBufferCommand>(CommandType.CreateHostBuffer);
             Register<CreateProgramCommand>(CommandType.CreateProgram);
             Register<CreateSamplerCommand>(CommandType.CreateSampler);
             Register<CreateSyncCommand>(CommandType.CreateSync);
@@ -69,6 +71,7 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             Register<TextureCopyToCommand>(CommandType.TextureCopyTo);
             Register<TextureCopyToScaledCommand>(CommandType.TextureCopyToScaled);
             Register<TextureCopyToSliceCommand>(CommandType.TextureCopyToSlice);
+            Register<TextureCopyToBufferCommand>(CommandType.TextureCopyToBuffer);
             Register<TextureCreateViewCommand>(CommandType.TextureCreateView);
             Register<TextureGetDataCommand>(CommandType.TextureGetData);
             Register<TextureGetDataSliceCommand>(CommandType.TextureGetDataSlice);

src/Ryujinx.Graphics.GAL/Multithreading/CommandType.cs

@@ -4,6 +4,8 @@
     {
         Action,
         CreateBuffer,
+        CreateBufferAccess,
+        CreateHostBuffer,
         CreateProgram,
         CreateSampler,
         CreateSync,
@@ -29,6 +31,7 @@
         SamplerDispose,
 
         TextureCopyTo,
+        TextureCopyToBuffer,
         TextureCopyToScaled,
         TextureCopyToSlice,
         TextureCreateView,

src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateBufferAccessCommand.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Renderer
+{
+    struct CreateBufferAccessCommand : IGALCommand, IGALCommand<CreateBufferAccessCommand>
+    {
+        public CommandType CommandType => CommandType.CreateBufferAccess;
+        private BufferHandle _threadedHandle;
+        private int _size;
+        private BufferAccess _access;
+
+        public void Set(BufferHandle threadedHandle, int size, BufferAccess access)
+        {
+            _threadedHandle = threadedHandle;
+            _size = size;
+            _access = access;
+        }
+
+        public static void Run(ref CreateBufferAccessCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            threaded.Buffers.AssignBuffer(command._threadedHandle, renderer.CreateBuffer(command._size, command._access));
+        }
+    }
+}

src/Ryujinx.Graphics.GAL/Multithreading/Commands/Renderer/CreateHostBufferCommand.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Renderer
+{
+    struct CreateHostBufferCommand : IGALCommand, IGALCommand<CreateHostBufferCommand>
+    {
+        public CommandType CommandType => CommandType.CreateHostBuffer;
+        private BufferHandle _threadedHandle;
+        private nint _pointer;
+        private int _size;
+
+        public void Set(BufferHandle threadedHandle, nint pointer, int size)
+        {
+            _threadedHandle = threadedHandle;
+            _pointer = pointer;
+            _size = size;
+        }
+
+        public static void Run(ref CreateHostBufferCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            threaded.Buffers.AssignBuffer(command._threadedHandle, renderer.CreateBuffer(command._pointer, command._size));
+        }
+    }
+}

src/Ryujinx.Graphics.GAL/Multithreading/Commands/Texture/TextureCopyToBufferCommand.cs

@@ -0,0 +1,29 @@
+using Ryujinx.Graphics.GAL.Multithreading.Model;
+using Ryujinx.Graphics.GAL.Multithreading.Resources;
+
+namespace Ryujinx.Graphics.GAL.Multithreading.Commands.Texture
+{
+    struct TextureCopyToBufferCommand : IGALCommand, IGALCommand<TextureCopyToBufferCommand>
+    {
+        public CommandType CommandType => CommandType.TextureCopyToBuffer;
+        private TableRef<ThreadedTexture> _texture;
+        private BufferRange _range;
+        private int _layer;
+        private int _level;
+        private int _stride;
+
+        public void Set(TableRef<ThreadedTexture> texture, BufferRange range, int layer, int level, int stride)
+        {
+            _texture = texture;
+            _range = range;
+            _layer = layer;
+            _level = level;
+            _stride = stride;
+        }
+
+        public static void Run(ref TextureCopyToBufferCommand command, ThreadedRenderer threaded, IRenderer renderer)
+        {
+            command._texture.Get(threaded).Base.CopyTo(threaded.Buffers.MapBufferRange(command._range), command._layer, command._level, command._stride);
+        }
+    }
+}

src/Ryujinx.Graphics.GAL/Multithreading/Resources/ThreadedTexture.cs

@@ -108,6 +108,12 @@ namespace Ryujinx.Graphics.GAL.Multithreading.Resources
             }
         }
 
+        public void CopyTo(BufferRange range, int layer, int level, int stride)
+        {
+            _renderer.New<TextureCopyToBufferCommand>().Set(Ref(this), range, layer, level, stride);
+            _renderer.QueueCommand();
+        }
+
         public void SetData(SpanOrArray<byte> data)
         {
             _renderer.New<TextureSetDataCommand>().Set(Ref(this), Ref(data.ToArray()));

src/Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs

@@ -57,6 +57,7 @@ namespace Ryujinx.Graphics.GAL.Multithreading
         private int _refConsumerPtr;
 
         private Action _interruptAction;
+        private object _interruptLock = new();
 
         public event EventHandler<ScreenCaptureImageInfo> ScreenCaptured;
 
@@ -274,6 +275,24 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             return handle;
         }
 
+        public BufferHandle CreateBuffer(nint pointer, int size)
+        {
+            BufferHandle handle = Buffers.CreateBufferHandle();
+            New<CreateHostBufferCommand>().Set(handle, pointer, size);
+            QueueCommand();
+
+            return handle;
+        }
+
+        public BufferHandle CreateBuffer(int size, BufferAccess access)
+        {
+            BufferHandle handle = Buffers.CreateBufferHandle();
+            New<CreateBufferAccessCommand>().Set(handle, size, access);
+            QueueCommand();
+
+            return handle;
+        }
+
         public IProgram CreateProgram(ShaderSource[] shaders, ShaderInfo info)
         {
             var program = new ThreadedProgram(this);
@@ -448,11 +467,14 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             }
             else
             {
-                while (Interlocked.CompareExchange(ref _interruptAction, action, null) != null) { }
+                lock (_interruptLock)
+                {
+                    while (Interlocked.CompareExchange(ref _interruptAction, action, null) != null) { }
 
-                _galWorkAvailable.Set();
+                    _galWorkAvailable.Set();
 
-                _interruptRun.WaitOne();
+                    _interruptRun.WaitOne();
+                }
             }
         }
 
@@ -461,6 +483,11 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             // Threaded renderer ignores given interrupt action, as it provides its own to the child renderer.
         }
 
+        public bool PrepareHostMapping(nint address, ulong size)
+        {
+            return _baseRenderer.PrepareHostMapping(address, size);
+        }
+
         public void Dispose()
         {
             // Dispose must happen from the render thread, after all commands have completed.

src/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoClass.cs

@@ -1,5 +1,6 @@
 using Ryujinx.Graphics.Device;
 using Ryujinx.Graphics.Gpu.Engine.MME;
+using Ryujinx.Graphics.Gpu.Synchronization;
 using System;
 using System.Collections.Generic;
 using System.Threading;
@@ -59,7 +60,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
             if (_createSyncPending)
             {
                 _createSyncPending = false;
-                _context.CreateHostSyncIfNeeded(false, false);
+                _context.CreateHostSyncIfNeeded(HostSyncFlags.None);
             }
         }
 
@@ -157,7 +158,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
             }
             else if (operation == SyncpointbOperation.Incr)
             {
-                _context.CreateHostSyncIfNeeded(true, true);
+                _context.CreateHostSyncIfNeeded(HostSyncFlags.StrictSyncpoint);
                 _context.Synchronization.IncrementSyncpoint(syncpointId);
             }
 
@@ -184,7 +185,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
         {
             _context.Renderer.Pipeline.CommandBufferBarrier();
 
-            _context.CreateHostSyncIfNeeded(false, true);
+            _context.CreateHostSyncIfNeeded(HostSyncFlags.Strict);
         }
 
         /// <summary>

src/Ryujinx.Graphics.Gpu/Engine/GPFifo/GPFifoDevice.cs

@@ -252,6 +252,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
         public void Interrupt()
         {
             _interrupt = true;
+            _event.Set();
         }
 
         /// <summary>

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

@@ -3,6 +3,7 @@ using Ryujinx.Graphics.GAL;
 using Ryujinx.Graphics.Gpu.Engine.GPFifo;
 using Ryujinx.Graphics.Gpu.Engine.InlineToMemory;
 using Ryujinx.Graphics.Gpu.Engine.Threed.Blender;
+using Ryujinx.Graphics.Gpu.Synchronization;
 using System;
 using System.Collections.Generic;
 using System.Runtime.CompilerServices;
@@ -254,7 +255,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Threed
             uint syncpointId = (uint)argument & 0xFFFF;
 
             _context.AdvanceSequence();
-            _context.CreateHostSyncIfNeeded(true, true);
+            _context.CreateHostSyncIfNeeded(HostSyncFlags.StrictSyncpoint);
             _context.Renderer.UpdateCounters(); // Poll the query counters, the game may want an updated result.
             _context.Synchronization.IncrementSyncpoint(syncpointId);
         }

src/Ryujinx.Graphics.Gpu/Engine/Twod/TwodClass.cs

@@ -300,11 +300,16 @@ namespace Ryujinx.Graphics.Gpu.Engine.Twod
                 IsCopyRegionComplete(srcCopyTexture, srcCopyTextureFormat, srcX1, srcY1, srcX2, srcY2) &&
                 IsCopyRegionComplete(dstCopyTexture, dstCopyTextureFormat, dstX1, dstY1, dstX2, dstY2);
 
+            // We can only allow aliasing of color formats as depth if the source and destination textures
+            // are the same, as we can't blit between different depth formats.
+            bool srcDepthAlias = srcCopyTexture.Format == dstCopyTexture.Format;
+
             var srcTexture = memoryManager.Physical.TextureCache.FindOrCreateTexture(
                 memoryManager,
                 srcCopyTexture,
                 offset,
                 srcCopyTextureFormat,
+                srcDepthAlias,
                 !canDirectCopy,
                 false,
                 srcHint);
@@ -325,6 +330,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.Twod
             // When the source texture that was found has a depth format,
             // we must enforce the target texture also has a depth format,
             // as copies between depth and color formats are not allowed.
+            // For depth blit, the destination texture format should always match exactly.
 
             if (srcTexture.Format.IsDepthOrStencil())
             {
@@ -340,7 +346,8 @@ namespace Ryujinx.Graphics.Gpu.Engine.Twod
                 dstCopyTexture,
                 0,
                 dstCopyTextureFormat,
-                true,
+                depthAlias: false,
+                shouldCreate: true,
                 srcTexture.ScaleMode == TextureScaleMode.Scaled,
                 dstHint);
 

src/Ryujinx.Graphics.Gpu/GpuContext.cs

@@ -60,14 +60,14 @@ namespace Ryujinx.Graphics.Gpu
         /// If there are more than 0 items when this happens, a host sync object will be generated for the given <see cref="SyncNumber"/>,
         /// and the SyncNumber will be incremented.
         /// </summary>
-        internal List<Action> SyncActions { get; }
+        internal List<ISyncActionHandler> SyncActions { get; }
 
         /// <summary>
         /// Actions to be performed when a CPU waiting syncpoint is triggered.
         /// If there are more than 0 items when this happens, a host sync object will be generated for the given <see cref="SyncNumber"/>,
         /// and the SyncNumber will be incremented.
         /// </summary>
-        internal List<Action> SyncpointActions { get; }
+        internal List<ISyncActionHandler> SyncpointActions { get; }
 
         /// <summary>
         /// Buffer migrations that are currently in-flight. These are checked whenever sync is created to determine if buffer migration
@@ -114,8 +114,8 @@ namespace Ryujinx.Graphics.Gpu
 
             HostInitalized = new ManualResetEvent(false);
 
-            SyncActions = new List<Action>();
-            SyncpointActions = new List<Action>();
+            SyncActions = new List<ISyncActionHandler>();
+            SyncpointActions = new List<ISyncActionHandler>();
             BufferMigrations = new List<BufferMigration>();
 
             DeferredActions = new Queue<Action>();
@@ -296,9 +296,9 @@ namespace Ryujinx.Graphics.Gpu
         /// Registers an action to be performed the next time a syncpoint is incremented.
         /// This will also ensure a host sync object is created, and <see cref="SyncNumber"/> is incremented.
         /// </summary>
-        /// <param name="action">The action to be performed on sync object creation</param>
+        /// <param name="action">The resource with action to be performed on sync object creation</param>
         /// <param name="syncpointOnly">True if the sync action should only run when syncpoints are incremented</param>
-        public void RegisterSyncAction(Action action, bool syncpointOnly = false)
+        internal void RegisterSyncAction(ISyncActionHandler action, bool syncpointOnly = false)
         {
             if (syncpointOnly)
             {
@@ -315,10 +315,13 @@ namespace Ryujinx.Graphics.Gpu
         /// Creates a host sync object if there are any pending sync actions. The actions will then be called.
         /// If no actions are present, a host sync object is not created.
         /// </summary>
-        /// <param name="syncpoint">True if host sync is being created by a syncpoint</param>
-        /// <param name="strict">True if the sync should signal as soon as possible</param>
-        public void CreateHostSyncIfNeeded(bool syncpoint, bool strict)
+        /// <param name="flags">Modifiers for how host sync should be created</param>
+        internal void CreateHostSyncIfNeeded(HostSyncFlags flags)
         {
+            bool syncpoint = flags.HasFlag(HostSyncFlags.Syncpoint);
+            bool strict = flags.HasFlag(HostSyncFlags.Strict);
+            bool force = flags.HasFlag(HostSyncFlags.Force);
+
             if (BufferMigrations.Count > 0)
             {
                 ulong currentSyncNumber = Renderer.GetCurrentSync();
@@ -336,24 +339,17 @@ namespace Ryujinx.Graphics.Gpu
                 }
             }
 
-            if (_pendingSync || (syncpoint && SyncpointActions.Count > 0))
+            if (force || _pendingSync || (syncpoint && SyncpointActions.Count > 0))
             {
                 Renderer.CreateSync(SyncNumber, strict);
 
+                SyncActions.ForEach(action => action.SyncPreAction(syncpoint));
+                SyncpointActions.ForEach(action => action.SyncPreAction(syncpoint));
+
                 SyncNumber++;
 
-                foreach (Action action in SyncActions)
-                {
-                    action();
-                }
-
-                foreach (Action action in SyncpointActions)
-                {
-                    action();
-                }
-
-                SyncActions.Clear();
-                SyncpointActions.Clear();
+                SyncActions.RemoveAll(action => action.SyncAction(syncpoint));
+                SyncpointActions.RemoveAll(action => action.SyncAction(syncpoint));
             }
 
             _pendingSync = false;

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

@@ -1,5 +1,4 @@
 using System.Collections;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
 
 namespace Ryujinx.Graphics.Gpu.Image
@@ -9,6 +8,7 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// </summary>
     class ShortTextureCacheEntry
     {
+        public bool IsAutoDelete;
         public readonly TextureDescriptor Descriptor;
         public readonly int InvalidatedSequence;
         public readonly Texture Texture;
@@ -24,6 +24,17 @@ namespace Ryujinx.Graphics.Gpu.Image
             InvalidatedSequence = texture.InvalidatedSequence;
             Texture = texture;
         }
+
+        /// <summary>
+        /// Create a new entry on the short duration texture cache from the auto delete cache.
+        /// </summary>
+        /// <param name="texture">The texture</param>
+        public ShortTextureCacheEntry(Texture texture)
+        {
+            IsAutoDelete = true;
+            InvalidatedSequence = texture.InvalidatedSequence;
+            Texture = texture;
+        }
     }
 
     /// <summary>
@@ -199,7 +210,11 @@ namespace Ryujinx.Graphics.Gpu.Image
             {
                 texture.DecrementReferenceCount();
 
-                _shortCacheLookup.Remove(texture.ShortCacheEntry.Descriptor);
+                if (!texture.ShortCacheEntry.IsAutoDelete)
+                {
+                    _shortCacheLookup.Remove(texture.ShortCacheEntry.Descriptor);
+                }
+
                 texture.ShortCacheEntry = null;
             }
         }
@@ -222,6 +237,25 @@ namespace Ryujinx.Graphics.Gpu.Image
             texture.IncrementReferenceCount();
         }
 
+        /// <summary>
+        /// Adds a texture to the short duration cache without a descriptor. This typically keeps it alive for two ticks.
+        /// On expiry, it will be removed from the AutoDeleteCache.
+        /// </summary>
+        /// <param name="texture">Texture to add to the short cache</param>
+        public void AddShortCache(Texture texture)
+        {
+            if (texture.ShortCacheEntry != null)
+            {
+                var entry = new ShortTextureCacheEntry(texture);
+
+                _shortCacheBuilder.Add(entry);
+
+                texture.ShortCacheEntry = entry;
+
+                texture.IncrementReferenceCount();
+            }
+        }
+
         /// <summary>
         /// Delete textures from the short duration cache.
         /// Moves the builder set to be deleted on next process.
@@ -234,7 +268,15 @@ namespace Ryujinx.Graphics.Gpu.Image
             {
                 entry.Texture.DecrementReferenceCount();
 
-                _shortCacheLookup.Remove(entry.Descriptor);
+                if (entry.IsAutoDelete)
+                {
+                    Remove(entry.Texture, false);
+                }
+                else
+                {
+                    _shortCacheLookup.Remove(entry.Descriptor);
+                }
+
                 entry.Texture.ShortCacheEntry = null;
             }
 

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

@@ -144,6 +144,11 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </summary>
         public ShortTextureCacheEntry ShortCacheEntry { get; set; }
 
+        /// <summary>
+        /// Whether this texture has ever been referenced by a pool.
+        /// </summary>
+        public bool HadPoolOwner { get; private set; }
+
         /// Physical memory ranges where the texture data is located.
         /// </summary>
         public MultiRange Range { get; private set; }
@@ -1113,7 +1118,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         {
             bool forSampler = (flags & TextureSearchFlags.ForSampler) != 0;
 
-            TextureMatchQuality matchQuality = TextureCompatibility.FormatMatches(Info, info, forSampler, (flags & TextureSearchFlags.ForCopy) != 0);
+            TextureMatchQuality matchQuality = TextureCompatibility.FormatMatches(Info, info, forSampler, (flags & TextureSearchFlags.DepthAlias) != 0);
 
             if (matchQuality == TextureMatchQuality.NoMatch)
             {
@@ -1423,7 +1428,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                 _scaledSetScore = Math.Max(0, _scaledSetScore - 1);
             }
 
-            if (_modifiedStale || Group.HasCopyDependencies)
+            if (_modifiedStale || Group.HasCopyDependencies || Group.HasFlushBuffer)
             {
                 _modifiedStale = false;
                 Group.SignalModifying(this, bound);
@@ -1506,10 +1511,13 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="gpuVa">GPU VA of the pool reference</param>
         public void IncrementReferenceCount(TexturePool pool, int id, ulong gpuVa)
         {
+            HadPoolOwner = true;
+
             lock (_poolOwners)
             {
                 _poolOwners.Add(new TexturePoolOwner { Pool = pool, ID = id, GpuAddress = gpuVa });
             }
+
             _referenceCount++;
 
             if (ShortCacheEntry != null)
@@ -1594,7 +1602,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                 _poolOwners.Clear();
             }
 
-            if (ShortCacheEntry != null && _context.IsGpuThread())
+            if (ShortCacheEntry != null && !ShortCacheEntry.IsAutoDelete && _context.IsGpuThread())
             {
                 // If this is called from another thread (unmapped), the short cache will
                 // have to remove this texture on a future tick.
@@ -1610,6 +1618,8 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </summary>
         public void UpdatePoolMappings()
         {
+            ChangedMapping = true;
+
             lock (_poolOwners)
             {
                 ulong address = 0;
@@ -1683,10 +1693,10 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             if (Group.Storage == this)
             {
+                Group.Unmapped();
+
                 Group.ClearModified(unmapRange);
             }
-
-            UpdatePoolMappings();
         }
 
         /// <summary>

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

@@ -64,7 +64,7 @@ namespace Ryujinx.Graphics.Gpu.Image
         }
 
         /// <summary>
-        /// Handles removal of textures written to a memory region being unmapped.
+        /// Handles marking of textures written to a memory region being (partially) remapped.
         /// </summary>
         /// <param name="sender">Sender object</param>
         /// <param name="e">Event arguments</param>
@@ -80,26 +80,41 @@ namespace Ryujinx.Graphics.Gpu.Image
                 overlapCount = _textures.FindOverlaps(unmapped, ref overlaps);
             }
 
-            for (int i = 0; i < overlapCount; i++)
+            if (overlapCount > 0)
             {
-                overlaps[i].Unmapped(unmapped);
+                for (int i = 0; i < overlapCount; i++)
+                {
+                    overlaps[i].Unmapped(unmapped);
+                }
             }
 
-            // If any range was previously unmapped, we also need to purge
-            // all partially mapped texture, as they might be fully mapped now.
-            for (int i = 0; i < unmapped.Count; i++)
+            lock (_partiallyMappedTextures)
             {
-                if (unmapped.GetSubRange(i).Address == MemoryManager.PteUnmapped)
+                if (overlapCount > 0 || _partiallyMappedTextures.Count > 0)
                 {
-                    lock (_partiallyMappedTextures)
+                    e.AddRemapAction(() =>
                     {
-                        foreach (var texture in _partiallyMappedTextures)
+                        lock (_partiallyMappedTextures)
                         {
-                            texture.Unmapped(unmapped);
-                        }
-                    }
+                            if (overlapCount > 0)
+                            {
+                                for (int i = 0; i < overlapCount; i++)
+                                {
+                                    _partiallyMappedTextures.Add(overlaps[i]);
+                                }
+                            }
 
-                    break;
+                            // Any texture that has been unmapped at any point or is partially unmapped
+                            // should update their pool references after the remap completes.
+
+                            MultiRange unmapped = ((MemoryManager)sender).GetPhysicalRegions(e.Address, e.Size);
+
+                            foreach (var texture in _partiallyMappedTextures)
+                            {
+                                texture.UpdatePoolMappings();
+                            }
+                        }
+                    });
                 }
             }
         }
@@ -234,6 +249,8 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="copyTexture">Copy texture to find or create</param>
         /// <param name="offset">Offset to be added to the physical texture address</param>
         /// <param name="formatInfo">Format information of the copy texture</param>
+        /// <param name="depthAlias">Indicates if aliasing between color and depth format should be allowed</param>
+        /// <param name="shouldCreate">Indicates if a new texture should be created if none is found on the cache</param>
         /// <param name="preferScaling">Indicates if the texture should be scaled from the start</param>
         /// <param name="sizeHint">A hint indicating the minimum used size for the texture</param>
         /// <returns>The texture</returns>
@@ -242,6 +259,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             TwodTexture copyTexture,
             ulong offset,
             FormatInfo formatInfo,
+            bool depthAlias,
             bool shouldCreate,
             bool preferScaling,
             Size sizeHint)
@@ -278,6 +296,11 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             TextureSearchFlags flags = TextureSearchFlags.ForCopy;
 
+            if (depthAlias)
+            {
+                flags |= TextureSearchFlags.DepthAlias;
+            }
+
             if (preferScaling)
             {
                 flags |= TextureSearchFlags.WithUpscale;
@@ -833,7 +856,17 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                             if (overlapInCache)
                             {
-                                _cache.Remove(overlap, flush);
+                                if (flush || overlap.HadPoolOwner || overlap.IsView)
+                                {
+                                    _cache.Remove(overlap, flush);
+                                }
+                                else
+                                {
+                                    // This texture has only ever been referenced in the AutoDeleteCache.
+                                    // Keep this texture alive with the short duration cache, as it may be used often but not sampled.
+
+                                    _cache.AddShortCache(overlap);
+                                }
                             }
 
                             removeOverlap = modified;
@@ -1135,6 +1168,44 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
         }
 
+        /// <summary>
+        /// Queries a texture's memory range and marks it as partially mapped or not.
+        /// Partially mapped textures re-evaluate their memory range after each time GPU memory is mapped.
+        /// </summary>
+        /// <param name="memoryManager">GPU memory manager where the texture is mapped</param>
+        /// <param name="address">The virtual address of the texture</param>
+        /// <param name="texture">The texture to be marked</param>
+        /// <returns>The physical regions for the texture, found when evaluating whether the texture was partially mapped</returns>
+        public MultiRange UpdatePartiallyMapped(MemoryManager memoryManager, ulong address, Texture texture)
+        {
+            MultiRange range;
+            lock (_partiallyMappedTextures)
+            {
+                range = memoryManager.GetPhysicalRegions(address, texture.Size);
+                bool partiallyMapped = false;
+
+                for (int i = 0; i < range.Count; i++)
+                {
+                    if (range.GetSubRange(i).Address == MemoryManager.PteUnmapped)
+                    {
+                        partiallyMapped = true;
+                        break;
+                    }
+                }
+
+                if (partiallyMapped)
+                {
+                    _partiallyMappedTextures.Add(texture);
+                }
+                else
+                {
+                    _partiallyMappedTextures.Remove(texture);
+                }
+            }
+
+            return range;
+        }
+
         /// <summary>
         /// Adds a texture to the short duration cache. This typically keeps it alive for two ticks.
         /// </summary>
@@ -1145,6 +1216,16 @@ namespace Ryujinx.Graphics.Gpu.Image
             _cache.AddShortCache(texture, ref descriptor);
         }
 
+        /// <summary>
+        /// Adds a texture to the short duration cache without a descriptor. This typically keeps it alive for two ticks.
+        /// On expiry, it will be removed from the AutoDeleteCache.
+        /// </summary>
+        /// <param name="texture">Texture to add to the short cache</param>
+        public void AddShortCache(Texture texture)
+        {
+            _cache.AddShortCache(texture);
+        }
+
         /// <summary>
         /// Removes a texture from the short duration cache.
         /// </summary>

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

@@ -220,18 +220,18 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="lhs">Texture information to compare</param>
         /// <param name="rhs">Texture information to compare with</param>
         /// <param name="forSampler">Indicates that the texture will be used for shader sampling</param>
-        /// <param name="forCopy">Indicates that the texture will be used as copy source or target</param>
+        /// <param name="depthAlias">Indicates if aliasing between color and depth format should be allowed</param>
         /// <returns>A value indicating how well the formats match</returns>
-        public static TextureMatchQuality FormatMatches(TextureInfo lhs, TextureInfo rhs, bool forSampler, bool forCopy)
+        public static TextureMatchQuality FormatMatches(TextureInfo lhs, TextureInfo rhs, bool forSampler, bool depthAlias)
         {
             // D32F and R32F texture have the same representation internally,
             // however the R32F format is used to sample from depth textures.
-            if (lhs.FormatInfo.Format == Format.D32Float && rhs.FormatInfo.Format == Format.R32Float && (forSampler || forCopy))
+            if (lhs.FormatInfo.Format == Format.D32Float && rhs.FormatInfo.Format == Format.R32Float && (forSampler || depthAlias))
             {
                 return TextureMatchQuality.FormatAlias;
             }
 
-            if (forCopy)
+            if (depthAlias)
             {
                 // The 2D engine does not support depth-stencil formats, so it will instead
                 // use equivalent color formats. We must also consider them as compatible.

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

@@ -57,6 +57,12 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </summary>
         public bool HasCopyDependencies { get; set; }
 
+        /// <summary>
+        /// Indicates if the texture group has a pre-emptive flush buffer.
+        /// When one is present, the group must always be notified on unbind.
+        /// </summary>
+        public bool HasFlushBuffer => _flushBuffer != BufferHandle.Null;
+
         /// <summary>
         /// Indicates if this texture has any incompatible overlaps alive.
         /// </summary>
@@ -89,6 +95,10 @@ namespace Ryujinx.Graphics.Gpu.Image
         private bool _incompatibleOverlapsDirty = true;
         private bool _flushIncompatibleOverlaps;
 
+        private BufferHandle _flushBuffer;
+        private bool _flushBufferImported;
+        private bool _flushBufferInvalid;
+
         /// <summary>
         /// Create a new texture group.
         /// </summary>
@@ -464,8 +474,9 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </remarks>
         /// <param name="tracked">True if writing the texture data is tracked, false otherwise</param>
         /// <param name="sliceIndex">The index of the slice to flush</param>
+        /// <param name="inBuffer">Whether the flushed texture data is up to date in the flush buffer</param>
         /// <param name="texture">The specific host texture to flush. Defaults to the storage texture</param>
-        private void FlushTextureDataSliceToGuest(bool tracked, int sliceIndex, ITexture texture = null)
+        private void FlushTextureDataSliceToGuest(bool tracked, int sliceIndex, bool inBuffer, ITexture texture = null)
         {
             (int layer, int level) = GetLayerLevelForView(sliceIndex);
 
@@ -475,7 +486,16 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             using WritableRegion region = _physicalMemory.GetWritableRegion(Storage.Range.Slice((ulong)offset, (ulong)size), tracked);
 
-            Storage.GetTextureDataSliceFromGpu(region.Memory.Span, layer, level, tracked, texture);
+            if (inBuffer)
+            {
+                using PinnedSpan<byte> data = _context.Renderer.GetBufferData(_flushBuffer, offset, size);
+
+                Storage.ConvertFromHostCompatibleFormat(region.Memory.Span, data.Get(), level, true);
+            }
+            else
+            {
+                Storage.GetTextureDataSliceFromGpu(region.Memory.Span, layer, level, tracked, texture);
+            }
         }
 
         /// <summary>
@@ -484,12 +504,13 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// <param name="tracked">True if writing the texture data is tracked, false otherwise</param>
         /// <param name="sliceStart">The first slice to flush</param>
         /// <param name="sliceEnd">The slice to finish flushing on (exclusive)</param>
+        /// <param name="inBuffer">Whether the flushed texture data is up to date in the flush buffer</param>
         /// <param name="texture">The specific host texture to flush. Defaults to the storage texture</param>
-        private void FlushSliceRange(bool tracked, int sliceStart, int sliceEnd, ITexture texture = null)
+        private void FlushSliceRange(bool tracked, int sliceStart, int sliceEnd, bool inBuffer, ITexture texture = null)
         {
             for (int i = sliceStart; i < sliceEnd; i++)
             {
-                FlushTextureDataSliceToGuest(tracked, i, texture);
+                FlushTextureDataSliceToGuest(tracked, i, inBuffer, texture);
             }
         }
 
@@ -520,7 +541,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                         {
                             if (endSlice > startSlice)
                             {
-                                FlushSliceRange(tracked, startSlice, endSlice);
+                                FlushSliceRange(tracked, startSlice, endSlice, false);
                                 flushed = true;
                             }
 
@@ -553,7 +574,7 @@ namespace Ryujinx.Graphics.Gpu.Image
                     }
                     else
                     {
-                        FlushSliceRange(tracked, startSlice, endSlice);
+                        FlushSliceRange(tracked, startSlice, endSlice, false);
                     }
 
                     flushed = true;
@@ -565,6 +586,58 @@ namespace Ryujinx.Graphics.Gpu.Image
             return flushed;
         }
 
+        /// <summary>
+        /// Flush the texture data into a persistently mapped buffer.
+        /// If the buffer does not exist, this method will create it.
+        /// </summary>
+        /// <param name="handle">Handle of the texture group to flush slices of</param>
+        public void FlushIntoBuffer(TextureGroupHandle handle)
+        {
+            // Ensure that the buffer exists.
+
+            if (_flushBufferInvalid && _flushBuffer != BufferHandle.Null)
+            {
+                _flushBufferInvalid = false;
+                _context.Renderer.DeleteBuffer(_flushBuffer);
+                _flushBuffer = BufferHandle.Null;
+            }
+
+            if (_flushBuffer == BufferHandle.Null)
+            {
+                if (!TextureCompatibility.CanTextureFlush(Storage.Info, _context.Capabilities))
+                {
+                    return;
+                }
+
+                bool canImport = Storage.Info.IsLinear && Storage.Info.Stride >= Storage.Info.Width * Storage.Info.FormatInfo.BytesPerPixel;
+
+                var hostPointer = canImport ? _physicalMemory.GetHostPointer(Storage.Range) : 0;
+
+                if (hostPointer != 0 && _context.Renderer.PrepareHostMapping(hostPointer, Storage.Size))
+                {
+                    _flushBuffer = _context.Renderer.CreateBuffer(hostPointer, (int)Storage.Size);
+                    _flushBufferImported = true;
+                }
+                else
+                {
+                    _flushBuffer = _context.Renderer.CreateBuffer((int)Storage.Size, BufferAccess.FlushPersistent);
+                    _flushBufferImported = false;
+                }
+
+                Storage.BlacklistScale();
+            }
+
+            int sliceStart = handle.BaseSlice;
+            int sliceEnd = sliceStart + handle.SliceCount;
+
+            for (int i = sliceStart; i < sliceEnd; i++)
+            {
+                (int layer, int level) = GetLayerLevelForView(i);
+
+                Storage.GetFlushTexture().CopyTo(new BufferRange(_flushBuffer, _allOffsets[i], _sliceSizes[level]), layer, level, _flushBufferImported ? Storage.Info.Stride : 0);
+            }
+        }
+
         /// <summary>
         /// Clears competing modified flags for all incompatible ranges, if they have possibly been modified.
         /// </summary>
@@ -1570,10 +1643,7 @@ namespace Ryujinx.Graphics.Gpu.Image
 
             _context.Renderer.BackgroundContextAction(() =>
             {
-                if (!isGpuThread)
-                {
-                    handle.Sync(_context);
-                }
+                bool inBuffer = !isGpuThread && handle.Sync(_context);
 
                 Storage.SignalModifiedDirty();
 
@@ -1585,13 +1655,24 @@ namespace Ryujinx.Graphics.Gpu.Image
                     }
                 }
 
-                if (TextureCompatibility.CanTextureFlush(Storage.Info, _context.Capabilities))
+                if (TextureCompatibility.CanTextureFlush(Storage.Info, _context.Capabilities) && !(inBuffer && _flushBufferImported))
                 {
-                    FlushSliceRange(false, handle.BaseSlice, handle.BaseSlice + handle.SliceCount, Storage.GetFlushTexture());
+                    FlushSliceRange(false, handle.BaseSlice, handle.BaseSlice + handle.SliceCount, inBuffer, Storage.GetFlushTexture());
                 }
             });
         }
 
+        /// <summary>
+        /// Called if any part of the storage texture is unmapped.
+        /// </summary>
+        public void Unmapped()
+        {
+            if (_flushBufferImported)
+            {
+                _flushBufferInvalid = true;
+            }
+        }
+
         /// <summary>
         /// Dispose this texture group, disposing all related memory tracking handles.
         /// </summary>
@@ -1606,6 +1687,11 @@ namespace Ryujinx.Graphics.Gpu.Image
             {
                 incompatible.Group._incompatibleOverlaps.RemoveAll(overlap => overlap.Group == this);
             }
+
+            if (_flushBuffer != BufferHandle.Null)
+            {
+                _context.Renderer.DeleteBuffer(_flushBuffer);
+            }
         }
     }
 }

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

@@ -1,4 +1,5 @@
 using Ryujinx.Cpu.Tracking;
+using Ryujinx.Graphics.Gpu.Synchronization;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -13,8 +14,14 @@ namespace Ryujinx.Graphics.Gpu.Image
     /// Also tracks copy dependencies for the handle - references to other handles that must be kept
     /// in sync with this one before use.
     /// </summary>
-    class TextureGroupHandle : IDisposable
+    class TextureGroupHandle : ISyncActionHandler, IDisposable
     {
+        private const int FlushBalanceIncrement = 6;
+        private const int FlushBalanceWriteCost = 1;
+        private const int FlushBalanceThreshold = 7;
+        private const int FlushBalanceMax = 60;
+        private const int FlushBalanceMin = -10;
+
         private TextureGroup _group;
         private int _bindCount;
         private int _firstLevel;
@@ -26,6 +33,8 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// The sync number last registered.
         /// </summary>
         private ulong _registeredSync;
+        private ulong _registeredBufferSync = ulong.MaxValue;
+        private ulong _registeredBufferGuestSync = ulong.MaxValue;
 
         /// <summary>
         /// The sync number when the texture was last modified by GPU.
@@ -42,6 +51,12 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// </summary>
         private bool _syncActionRegistered;
 
+        /// <summary>
+        /// Determines the balance of synced writes to flushes.
+        /// Used to determine if the texture should always write data to a persistent buffer for flush.
+        /// </summary>
+        private int _flushBalance;
+
         /// <summary>
         /// The byte offset from the start of the storage of this handle.
         /// </summary>
@@ -132,6 +147,12 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
 
             Handles = handles;
+
+            if (group.Storage.Info.IsLinear)
+            {
+                // Linear textures are presumed to be used for readback initially.
+                _flushBalance = FlushBalanceThreshold + FlushBalanceIncrement;
+            }
         }
 
         /// <summary>
@@ -159,6 +180,35 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
         }
 
+        /// <summary>
+        /// Determine if the next sync will copy into the flush buffer.
+        /// </summary>
+        /// <returns>True if it will copy, false otherwise</returns>
+        private bool NextSyncCopies()
+        {
+            return _flushBalance - FlushBalanceWriteCost > FlushBalanceThreshold;
+        }
+
+        /// <summary>
+        /// Alters the flush balance by the given value. Should increase significantly with each sync, decrease with each write.
+        /// A flush balance higher than the threshold will cause a texture to repeatedly copy to a flush buffer on each use.
+        /// </summary>
+        /// <param name="modifier">Value to add to the existing flush balance</param>
+        /// <returns>True if the new balance is over the threshold, false otherwise</returns>
+        private bool ModifyFlushBalance(int modifier)
+        {
+            int result;
+            int existingBalance;
+            do
+            {
+                existingBalance = _flushBalance;
+                result = Math.Max(FlushBalanceMin, Math.Min(FlushBalanceMax, existingBalance + modifier));
+            }
+            while (Interlocked.CompareExchange(ref _flushBalance, result, existingBalance) != existingBalance);
+
+            return result > FlushBalanceThreshold;
+        }
+
         /// <summary>
         /// Adds a single texture view as an overlap if its range overlaps.
         /// </summary>
@@ -204,7 +254,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             if (!_syncActionRegistered)
             {
                 _modifiedSync = context.SyncNumber;
-                context.RegisterSyncAction(SyncAction, true);
+                context.RegisterSyncAction(this, true);
                 _syncActionRegistered = true;
             }
 
@@ -241,6 +291,13 @@ namespace Ryujinx.Graphics.Gpu.Image
         {
             SignalModified(context);
 
+            if (!bound && _syncActionRegistered && NextSyncCopies())
+            {
+                // On unbind, textures that flush often should immediately create sync so their result can be obtained as soon as possible.
+
+                context.CreateHostSyncIfNeeded(HostSyncFlags.Force);
+            }
+
             // Note: Bind count currently resets to 0 on inherit for safety, as the handle <-> view relationship can change.
             _bindCount = Math.Max(0, _bindCount + (bound ? 1 : -1));
         }
@@ -266,25 +323,35 @@ namespace Ryujinx.Graphics.Gpu.Image
         /// removing the modified flag if it was reached, or leaving it set if it has not yet been created.
         /// </summary>
         /// <param name="context">The GPU context used to wait for sync</param>
-        public void Sync(GpuContext context)
+        /// <returns>True if the texture data can be read from the flush buffer</returns>
+        public bool Sync(GpuContext context)
         {
-            ulong registeredSync = _registeredSync;
-            long diff = (long)(context.SyncNumber - registeredSync);
+            // Currently assumes the calling thread is a guest thread.
+
+            bool inBuffer = _registeredBufferGuestSync != ulong.MaxValue;
+            ulong sync = inBuffer ? _registeredBufferGuestSync : _registeredSync;
+
+            long diff = (long)(context.SyncNumber - sync);
+
+            ModifyFlushBalance(FlushBalanceIncrement);
 
             if (diff > 0)
             {
-                context.Renderer.WaitSync(registeredSync);
+                context.Renderer.WaitSync(sync);
 
-                if ((long)(_modifiedSync - registeredSync) > 0)
+                if ((long)(_modifiedSync - sync) > 0)
                 {
                     // Flush the data in a previous state. Do not remove the modified flag - it will be removed to ignore following writes.
-                    return;
+                    return inBuffer;
                 }
 
                 Modified = false;
+
+                return inBuffer;
             }
 
             // If the difference is <= 0, no data is not ready yet. Flush any data we can without waiting or removing modified flag.
+            return false;
         }
 
         /// <summary>
@@ -296,15 +363,41 @@ namespace Ryujinx.Graphics.Gpu.Image
             Interlocked.Exchange(ref _actionRegistered, 0);
         }
 
+        /// <summary>
+        /// Action to perform before a sync number is registered after modification.
+        /// This action will copy the texture data to the flush buffer if this texture
+        /// flushes often enough, which is determined by the flush balance.
+        /// </summary>
+        /// <inheritdoc/>
+        public void SyncPreAction(bool syncpoint)
+        {
+            if (syncpoint || NextSyncCopies())
+            {
+                if (ModifyFlushBalance(0) && _registeredBufferSync != _modifiedSync)
+                {
+                    _group.FlushIntoBuffer(this);
+                    _registeredBufferSync = _modifiedSync;
+                }
+            }
+        }
+
         /// <summary>
         /// Action to perform when a sync number is registered after modification.
         /// This action will register a read tracking action on the memory tracking handle so that a flush from CPU can happen.
         /// </summary>
-        private void SyncAction()
+        /// <inheritdoc/>
+        public bool SyncAction(bool syncpoint)
         {
             // The storage will need to signal modified again to update the sync number in future.
             _group.Storage.SignalModifiedDirty();
 
+            bool lastInBuffer = _registeredBufferSync == _modifiedSync;
+
+            if (!lastInBuffer)
+            {
+                _registeredBufferSync = ulong.MaxValue;
+            }
+
             lock (Overlaps)
             {
                 foreach (Texture texture in Overlaps)
@@ -314,6 +407,7 @@ namespace Ryujinx.Graphics.Gpu.Image
             }
 
             // Register region tracking for CPU? (again)
+
             _registeredSync = _modifiedSync;
             _syncActionRegistered = false;
 
@@ -321,6 +415,14 @@ namespace Ryujinx.Graphics.Gpu.Image
             {
                 _group.RegisterAction(this);
             }
+
+            if (syncpoint)
+            {
+                _registeredBufferGuestSync = _registeredBufferSync;
+            }
+
+            // If the last modification is in the buffer, keep this sync action alive until it sees a syncpoint.
+            return syncpoint || !lastInBuffer;
         }
 
         /// <summary>

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

@@ -272,7 +272,15 @@ namespace Ryujinx.Graphics.Gpu.Image
 
                     ulong address = descriptor.UnpackAddress();
 
-                    MultiRange range = _channel.MemoryManager.GetPhysicalRegions(address, texture.Size);
+                    if (!descriptor.Equals(ref DescriptorCache[request.ID]))
+                    {
+                        // If the pool entry has already been replaced, just remove the texture.
+
+                        texture.DecrementReferenceCount();
+                        continue;
+                    }
+
+                    MultiRange range = _channel.MemoryManager.Physical.TextureCache.UpdatePartiallyMapped(_channel.MemoryManager, address, texture);
 
                     // If the texture is not mapped at all, delete its reference.
 

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

@@ -11,7 +11,8 @@ namespace Ryujinx.Graphics.Gpu.Image
         None        = 0,
         ForSampler  = 1 << 1,
         ForCopy     = 1 << 2,
-        WithUpscale = 1 << 3,
-        NoCreate    = 1 << 4
+        DepthAlias  = 1 << 3,
+        WithUpscale = 1 << 4,
+        NoCreate    = 1 << 5
     }
 }

src/Ryujinx.Graphics.Gpu/Memory/Buffer.cs

@@ -1,5 +1,6 @@
 using Ryujinx.Cpu.Tracking;
 using Ryujinx.Graphics.GAL;
+using Ryujinx.Graphics.Gpu.Synchronization;
 using Ryujinx.Memory.Range;
 using Ryujinx.Memory.Tracking;
 using System;
@@ -11,7 +12,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
     /// <summary>
     /// Buffer, used to store vertex and index data, uniform and storage buffers, and others.
     /// </summary>
-    class Buffer : IRange, IDisposable
+    class Buffer : IRange, ISyncActionHandler, IDisposable
     {
         private const ulong GranularBufferThreshold = 4096;
 
@@ -248,7 +249,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
 
             if (!_syncActionRegistered)
             {
-                _context.RegisterSyncAction(SyncAction);
+                _context.RegisterSyncAction(this);
                 _syncActionRegistered = true;
             }
         }
@@ -267,7 +268,8 @@ namespace Ryujinx.Graphics.Gpu.Memory
         /// Action to be performed when a syncpoint is reached after modification.
         /// This will register read/write tracking to flush the buffer from GPU when its memory is used.
         /// </summary>
-        private void SyncAction()
+        /// <inheritdoc/>
+        public bool SyncAction(bool syncpoint)
         {
             _syncActionRegistered = false;
 
@@ -284,6 +286,8 @@ namespace Ryujinx.Graphics.Gpu.Memory
                 _memoryTracking.RegisterAction(_externalFlushDelegate);
                 SynchronizeMemory(Address, Size);
             }
+
+            return true;
         }
 
         /// <summary>
@@ -296,7 +300,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
             {
                 if (from._syncActionRegistered && !_syncActionRegistered)
                 {
-                    _context.RegisterSyncAction(SyncAction);
+                    _context.RegisterSyncAction(this);
                     _syncActionRegistered = true;
                 }
 

src/Ryujinx.Graphics.Gpu/Memory/MemoryManager.cs

@@ -365,6 +365,22 @@ namespace Ryujinx.Graphics.Gpu.Memory
             }
         }
 
+        /// <summary>
+        /// Runs remap actions that are added to an unmap event.
+        /// These must run after the mapping completes.
+        /// </summary>
+        /// <param name="e">Event with remap actions</param>
+        private void RunRemapActions(UnmapEventArgs e)
+        {
+            if (e.RemapActions != null)
+            {
+                foreach (Action action in e.RemapActions)
+                {
+                    action();
+                }
+            }
+        }
+
         /// <summary>
         /// Maps a given range of pages to the specified CPU virtual address.
         /// </summary>
@@ -379,12 +395,15 @@ namespace Ryujinx.Graphics.Gpu.Memory
         {
             lock (_pageTable)
             {
-                MemoryUnmapped?.Invoke(this, new UnmapEventArgs(va, size));
+                UnmapEventArgs e = new(va, size);
+                MemoryUnmapped?.Invoke(this, e);
 
                 for (ulong offset = 0; offset < size; offset += PageSize)
                 {
                     SetPte(va + offset, PackPte(pa + offset, kind));
                 }
+
+                RunRemapActions(e);
             }
         }
 
@@ -398,12 +417,15 @@ namespace Ryujinx.Graphics.Gpu.Memory
             lock (_pageTable)
             {
                 // Event handlers are not expected to be thread safe.
-                MemoryUnmapped?.Invoke(this, new UnmapEventArgs(va, size));
+                UnmapEventArgs e = new(va, size);
+                MemoryUnmapped?.Invoke(this, e);
 
                 for (ulong offset = 0; offset < size; offset += PageSize)
                 {
                     SetPte(va + offset, PteUnmapped);
                 }
+
+                RunRemapActions(e);
             }
         }
 

src/Ryujinx.Graphics.Gpu/Memory/PhysicalMemory.cs

@@ -8,6 +8,7 @@ using Ryujinx.Memory.Tracking;
 using System;
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
+using System.Linq;
 using System.Threading;
 
 namespace Ryujinx.Graphics.Gpu.Memory
@@ -82,6 +83,34 @@ namespace Ryujinx.Graphics.Gpu.Memory
             }
         }
 
+        /// <summary>
+        /// Gets a host pointer for a given range of application memory.
+        /// If the memory region is not a single contiguous block, this method returns 0.
+        /// </summary>
+        /// <remarks>
+        /// Getting a host pointer is unsafe. It should be considered invalid immediately if the GPU memory is unmapped.
+        /// </remarks>
+        /// <param name="range">Ranges of physical memory where the target data is located</param>
+        /// <returns>Pointer to the range of memory</returns>
+        public nint GetHostPointer(MultiRange range)
+        {
+            if (range.Count == 1)
+            {
+                var singleRange = range.GetSubRange(0);
+                if (singleRange.Address != MemoryManager.PteUnmapped)
+                {
+                    var regions = _cpuMemory.GetHostRegions(singleRange.Address, singleRange.Size);
+
+                    if (regions != null && regions.Count() == 1)
+                    {
+                        return (nint)regions.First().Address;
+                    }
+                }
+            }
+
+            return 0;
+        }
+
         /// <summary>
         /// Gets a span of data from the application process.
         /// </summary>

src/Ryujinx.Graphics.Gpu/Memory/UnmapEventArgs.cs

@@ -1,14 +1,24 @@
-namespace Ryujinx.Graphics.Gpu.Memory
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Gpu.Memory
 {
     public class UnmapEventArgs
     {
         public ulong Address { get; }
         public ulong Size { get; }
+        public List<Action> RemapActions { get; private set; }
 
         public UnmapEventArgs(ulong address, ulong size)
         {
             Address = address;
             Size = size;
         }
+
+        public void AddRemapAction(Action action)
+        {
+            RemapActions ??= new List<Action>();
+            RemapActions.Add(action);
+        }
     }
 }

src/Ryujinx.Graphics.Gpu/Synchronization/HostSyncFlags.cs

@@ -0,0 +1,30 @@
+using System;
+
+namespace Ryujinx.Graphics.Gpu.Synchronization
+{
+    /// <summary>
+    /// Modifier flags for creating host sync.
+    /// </summary>
+    [Flags]
+    internal enum HostSyncFlags
+    {
+        None = 0,
+
+        /// <summary>
+        /// Present if host sync is being created by a syncpoint.
+        /// </summary>
+        Syncpoint = 1 << 0,
+
+        /// <summary>
+        /// Present if the sync should signal as soon as possible.
+        /// </summary>
+        Strict = 1 << 1,
+
+        /// <summary>
+        /// Present will force the sync to be created, even if no actions are eligible.
+        /// </summary>
+        Force = 1 << 2,
+
+        StrictSyncpoint = Strict | Syncpoint
+    }
+}

src/Ryujinx.Graphics.Gpu/Synchronization/ISyncActionHandler.cs

@@ -0,0 +1,22 @@
+namespace Ryujinx.Graphics.Gpu.Synchronization
+{
+    /// <summary>
+    /// This interface indicates that a class can be registered for a sync action.
+    /// </summary>
+    interface ISyncActionHandler
+    {
+        /// <summary>
+        /// Action to be performed when some synchronizing action is reached after modification.
+        /// Generally used to register read/write tracking to flush resources from GPU when their memory is used.
+        /// </summary>
+        /// <param name="syncpoint">True if the action is a guest syncpoint</param>
+        /// <returns>True if the action is to be removed, false otherwise</returns>
+        bool SyncAction(bool syncpoint);
+
+        /// <summary>
+        /// Action to be performed immediately before sync is created.
+        /// </summary>
+        /// <param name="syncpoint">True if the action is a guest syncpoint</param>
+        void SyncPreAction(bool syncpoint) { }
+    }
+}

src/Ryujinx.Graphics.OpenGL/Buffer.cs

@@ -42,6 +42,20 @@ namespace Ryujinx.Graphics.OpenGL
             return Handle.FromInt32<BufferHandle>(handle);
         }
 
+        public static BufferHandle CreatePersistent(int size)
+        {
+            int handle = GL.GenBuffer();
+
+            GL.BindBuffer(BufferTarget.CopyWriteBuffer, handle);
+            GL.BufferStorage(BufferTarget.CopyWriteBuffer, size, IntPtr.Zero,
+                BufferStorageFlags.MapPersistentBit |
+                BufferStorageFlags.MapCoherentBit |
+                BufferStorageFlags.ClientStorageBit |
+                BufferStorageFlags.MapReadBit);
+
+            return Handle.FromInt32<BufferHandle>(handle);
+        }
+
         public static void Copy(BufferHandle source, BufferHandle destination, int srcOffset, int dstOffset, int size)
         {
             GL.BindBuffer(BufferTarget.CopyReadBuffer, source.ToInt32());
@@ -60,7 +74,11 @@ namespace Ryujinx.Graphics.OpenGL
             // Data in the persistent buffer and host array is guaranteed to be available
             // until the next time the host thread requests data.
 
-            if (HwCapabilities.UsePersistentBufferForFlush)
+            if (renderer.PersistentBuffers.TryGet(buffer, out IntPtr ptr))
+            {
+                return new PinnedSpan<byte>(IntPtr.Add(ptr, offset).ToPointer(), size);
+            }
+            else if (HwCapabilities.UsePersistentBufferForFlush)
             {
                 return PinnedSpan<byte>.UnsafeFromSpan(renderer.PersistentBuffers.Default.GetBufferData(buffer, offset, size));
             }

src/Ryujinx.Graphics.OpenGL/Image/TextureBuffer.cs

@@ -49,6 +49,11 @@ namespace Ryujinx.Graphics.OpenGL.Image
             return GetData();
         }
 
+        public void CopyTo(BufferRange range, int layer, int level, int stride)
+        {
+            throw new NotImplementedException();
+        }
+
         public void SetData(SpanOrArray<byte> data)
         {
             var dataSpan = data.AsSpan();

src/Ryujinx.Graphics.OpenGL/Image/TextureView.cs

@@ -3,6 +3,7 @@ using Ryujinx.Common;
 using Ryujinx.Common.Memory;
 using Ryujinx.Graphics.GAL;
 using System;
+using System.Diagnostics;
 
 namespace Ryujinx.Graphics.OpenGL.Image
 {
@@ -287,6 +288,26 @@ namespace Ryujinx.Graphics.OpenGL.Image
             }
         }
 
+        public void CopyTo(BufferRange range, int layer, int level, int stride)
+        {
+            if (stride != 0 && stride != BitUtils.AlignUp(Info.Width * Info.BytesPerPixel, 4))
+            {
+                throw new NotSupportedException("Stride conversion for texture copy to buffer not supported.");
+            }
+
+            GL.BindBuffer(BufferTarget.PixelPackBuffer, range.Handle.ToInt32());
+
+            FormatInfo format = FormatTable.GetFormatInfo(Info.Format);
+            if (format.PixelFormat == PixelFormat.DepthStencil)
+            {
+                throw new InvalidOperationException("DepthStencil copy to buffer is not supported for layer/level > 0.");
+            }
+
+            int offset = WriteToPbo2D(range.Offset, layer, level);
+
+            Debug.Assert(offset == 0);
+        }
+
         public void WriteToPbo(int offset, bool forceBgra)
         {
             WriteTo(IntPtr.Zero + offset, forceBgra);

src/Ryujinx.Graphics.OpenGL/OpenGLRenderer.cs

@@ -58,10 +58,31 @@ namespace Ryujinx.Graphics.OpenGL
         }
 
         public BufferHandle CreateBuffer(int size, BufferHandle storageHint)
+        {
+            return CreateBuffer(size, GAL.BufferAccess.Default);
+        }
+
+        public BufferHandle CreateBuffer(int size, GAL.BufferAccess access)
         {
             BufferCount++;
 
-            return Buffer.Create(size);
+            if (access == GAL.BufferAccess.FlushPersistent)
+            {
+                BufferHandle handle = Buffer.CreatePersistent(size);
+
+                PersistentBuffers.Map(handle, size);
+
+                return handle;
+            }
+            else
+            {
+                return Buffer.Create(size);
+            }
+        }
+
+        public BufferHandle CreateBuffer(nint pointer, int size)
+        {
+            throw new NotSupportedException();
         }
 
         public IProgram CreateProgram(ShaderSource[] shaders, ShaderInfo info)
@@ -88,6 +109,8 @@ namespace Ryujinx.Graphics.OpenGL
 
         public void DeleteBuffer(BufferHandle buffer)
         {
+            PersistentBuffers.Unmap(buffer);
+
             Buffer.Delete(buffer);
         }
 
@@ -272,5 +295,10 @@ namespace Ryujinx.Graphics.OpenGL
         {
             ScreenCaptured?.Invoke(this, bitmap);
         }
+
+        public bool PrepareHostMapping(nint address, ulong size)
+        {
+            return false;
+        }
     }
 }

src/Ryujinx.Graphics.OpenGL/PersistentBuffers.cs

@@ -1,8 +1,9 @@
-using OpenTK.Graphics.OpenGL;
+using OpenTK.Graphics.OpenGL;
 using Ryujinx.Common.Logging;
 using Ryujinx.Graphics.GAL;
 using Ryujinx.Graphics.OpenGL.Image;
 using System;
+using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
@@ -13,6 +14,8 @@ namespace Ryujinx.Graphics.OpenGL
         private PersistentBuffer _main = new PersistentBuffer();
         private PersistentBuffer _background = new PersistentBuffer();
 
+        private Dictionary<BufferHandle, IntPtr> _maps = new Dictionary<BufferHandle, IntPtr>();
+
         public PersistentBuffer Default => BackgroundContextWorker.InBackground ? _background : _main;
 
         public void Dispose()
@@ -20,6 +23,30 @@ namespace Ryujinx.Graphics.OpenGL
             _main?.Dispose();
             _background?.Dispose();
         }
+
+        public void Map(BufferHandle handle, int size)
+        {
+            GL.BindBuffer(BufferTarget.CopyWriteBuffer, handle.ToInt32());
+            IntPtr ptr = GL.MapBufferRange(BufferTarget.CopyWriteBuffer, IntPtr.Zero, size, BufferAccessMask.MapReadBit | BufferAccessMask.MapPersistentBit);
+
+            _maps[handle] = ptr;
+        }
+
+        public void Unmap(BufferHandle handle)
+        {
+            if (_maps.ContainsKey(handle))
+            {
+                GL.BindBuffer(BufferTarget.CopyWriteBuffer, handle.ToInt32());
+                GL.UnmapBuffer(BufferTarget.CopyWriteBuffer);
+
+                _maps.Remove(handle);
+            }
+        }
+
+        public bool TryGet(BufferHandle handle, out IntPtr ptr)
+        {
+            return _maps.TryGetValue(handle, out ptr);
+        }
     }
 
     class PersistentBuffer : IDisposable

src/Ryujinx.Graphics.Vulkan/BufferHolder.cs

@@ -33,6 +33,7 @@ namespace Ryujinx.Graphics.Vulkan
         private MemoryAllocation _allocation;
         private Auto<DisposableBuffer> _buffer;
         private Auto<MemoryAllocation> _allocationAuto;
+        private bool _allocationImported;
         private ulong _bufferHandle;
 
         private CacheByRange<BufferHolder> _cachedConvertedBuffers;
@@ -81,6 +82,26 @@ namespace Ryujinx.Graphics.Vulkan
             _flushLock = new ReaderWriterLock();
         }
 
+        public BufferHolder(VulkanRenderer gd, Device device, VkBuffer buffer, Auto<MemoryAllocation> allocation, int size, BufferAllocationType type, BufferAllocationType currentType, int offset)
+        {
+            _gd = gd;
+            _device = device;
+            _allocation = allocation.GetUnsafe();
+            _allocationAuto = allocation;
+            _allocationImported = true;
+            _waitable = new MultiFenceHolder(size);
+            _buffer = new Auto<DisposableBuffer>(new DisposableBuffer(gd.Api, device, buffer), _waitable, _allocationAuto);
+            _bufferHandle = buffer.Handle;
+            Size = size;
+            _map = _allocation.HostPointer + offset;
+
+            _baseType = type;
+            _currentType = currentType;
+            DesiredType = currentType;
+
+            _flushLock = new ReaderWriterLock();
+        }
+
         public bool TryBackingSwap(ref CommandBufferScoped? cbs)
         {
             if (_swapQueued && DesiredType != _currentType)
@@ -775,8 +796,15 @@ namespace Ryujinx.Graphics.Vulkan
             _gd.PipelineInternal?.FlushCommandsIfWeightExceeding(_buffer, (ulong)Size);
 
             _buffer.Dispose();
-            _allocationAuto.Dispose();
             _cachedConvertedBuffers.Dispose();
+            if (_allocationImported)
+            {
+                _allocationAuto.DecrementReferenceCount();
+            }
+            else
+            {
+                _allocationAuto.Dispose();
+            }
 
             _flushLock.AcquireWriterLock(Timeout.Infinite);
 

src/Ryujinx.Graphics.Vulkan/BufferManager.cs

@@ -10,7 +10,7 @@ namespace Ryujinx.Graphics.Vulkan
 {
     class BufferManager : IDisposable
     {
-        private const MemoryPropertyFlags DefaultBufferMemoryFlags =
+        public const MemoryPropertyFlags DefaultBufferMemoryFlags =
             MemoryPropertyFlags.HostVisibleBit |
             MemoryPropertyFlags.HostCoherentBit |
             MemoryPropertyFlags.HostCachedBit;
@@ -40,6 +40,10 @@ namespace Ryujinx.Graphics.Vulkan
             BufferUsageFlags.VertexBufferBit |
             BufferUsageFlags.TransformFeedbackBufferBitExt;
 
+        private const BufferUsageFlags HostImportedBufferUsageFlags =
+            BufferUsageFlags.TransferSrcBit |
+            BufferUsageFlags.TransferDstBit;
+
         private readonly Device _device;
 
         private readonly IdList<BufferHolder> _buffers;
@@ -48,11 +52,47 @@ namespace Ryujinx.Graphics.Vulkan
 
         public StagingBuffer StagingBuffer { get; }
 
+        public MemoryRequirements HostImportedBufferMemoryRequirements { get; }
+
         public BufferManager(VulkanRenderer gd, Device device)
         {
             _device = device;
             _buffers = new IdList<BufferHolder>();
             StagingBuffer = new StagingBuffer(gd, this);
+
+            HostImportedBufferMemoryRequirements = GetHostImportedUsageRequirements(gd);
+        }
+
+        public unsafe BufferHandle CreateHostImported(VulkanRenderer gd, nint pointer, int size)
+        {
+            var usage = HostImportedBufferUsageFlags;
+
+            if (gd.Capabilities.SupportsIndirectParameters)
+            {
+                usage |= BufferUsageFlags.IndirectBufferBit;
+            }
+
+            var bufferCreateInfo = new BufferCreateInfo()
+            {
+                SType = StructureType.BufferCreateInfo,
+                Size = (ulong)size,
+                Usage = usage,
+                SharingMode = SharingMode.Exclusive
+            };
+
+            gd.Api.CreateBuffer(_device, in bufferCreateInfo, null, out var buffer).ThrowOnError();
+
+            (Auto<MemoryAllocation> allocation, ulong offset) = gd.HostMemoryAllocator.GetExistingAllocation(pointer, (ulong)size);
+
+            gd.Api.BindBufferMemory(_device, buffer, allocation.GetUnsafe().Memory, allocation.GetUnsafe().Offset + offset);
+
+            var holder = new BufferHolder(gd, _device, buffer, allocation, size, BufferAllocationType.HostMapped, BufferAllocationType.HostMapped, (int)offset);
+
+            BufferCount++;
+
+            ulong handle64 = (uint)_buffers.Add(holder);
+
+            return Unsafe.As<ulong, BufferHandle>(ref handle64);
         }
 
         public BufferHandle CreateWithHandle(VulkanRenderer gd, int size, BufferAllocationType baseType = BufferAllocationType.HostMapped, BufferHandle storageHint = default)
@@ -75,6 +115,32 @@ namespace Ryujinx.Graphics.Vulkan
             return Unsafe.As<ulong, BufferHandle>(ref handle64);
         }
 
+        public unsafe MemoryRequirements GetHostImportedUsageRequirements(VulkanRenderer gd)
+        {
+            var usage = HostImportedBufferUsageFlags;
+
+            if (gd.Capabilities.SupportsIndirectParameters)
+            {
+                usage |= BufferUsageFlags.IndirectBufferBit;
+            }
+
+            var bufferCreateInfo = new BufferCreateInfo()
+            {
+                SType = StructureType.BufferCreateInfo,
+                Size = (ulong)Environment.SystemPageSize,
+                Usage = usage,
+                SharingMode = SharingMode.Exclusive
+            };
+
+            gd.Api.CreateBuffer(_device, in bufferCreateInfo, null, out var buffer).ThrowOnError();
+
+            gd.Api.GetBufferMemoryRequirements(_device, buffer, out var requirements);
+
+            gd.Api.DestroyBuffer(_device, buffer, null);
+
+            return requirements;
+        }
+
         public unsafe (VkBuffer buffer, MemoryAllocation allocation, BufferAllocationType resultType) CreateBacking(
             VulkanRenderer gd,
             int size,

src/Ryujinx.Graphics.Vulkan/EnumConversion.cs

@@ -364,6 +364,15 @@ namespace Ryujinx.Graphics.Vulkan
             };
         }
 
+        public static BufferAllocationType Convert(this BufferAccess access)
+        {
+            return access switch
+            {
+                BufferAccess.FlushPersistent => BufferAllocationType.HostMapped,
+                _ => BufferAllocationType.Auto
+            };
+        }
+
         private static T2 LogInvalidAndReturn<T1, T2>(T1 value, string name, T2 defaultValue = default)
         {
             Logger.Debug?.Print(LogClass.Gpu, $"Invalid {name} enum value: {value}.");

src/Ryujinx.Graphics.Vulkan/HardwareCapabilities.cs

@@ -41,6 +41,7 @@ namespace Ryujinx.Graphics.Vulkan
         public readonly bool SupportsPipelineStatisticsQuery;
         public readonly bool SupportsGeometryShader;
         public readonly bool SupportsViewportArray2;
+        public readonly bool SupportsHostImportedMemory;
         public readonly uint MinSubgroupSize;
         public readonly uint MaxSubgroupSize;
         public readonly ShaderStageFlags RequiredSubgroupSizeStages;
@@ -75,6 +76,7 @@ namespace Ryujinx.Graphics.Vulkan
             bool supportsPipelineStatisticsQuery,
             bool supportsGeometryShader,
             bool supportsViewportArray2,
+            bool supportsHostImportedMemory,
             uint minSubgroupSize,
             uint maxSubgroupSize,
             ShaderStageFlags requiredSubgroupSizeStages,
@@ -108,6 +110,7 @@ namespace Ryujinx.Graphics.Vulkan
             SupportsPipelineStatisticsQuery = supportsPipelineStatisticsQuery;
             SupportsGeometryShader = supportsGeometryShader;
             SupportsViewportArray2 = supportsViewportArray2;
+            SupportsHostImportedMemory = supportsHostImportedMemory;
             MinSubgroupSize = minSubgroupSize;
             MaxSubgroupSize = maxSubgroupSize;
             RequiredSubgroupSizeStages = requiredSubgroupSizeStages;

src/Ryujinx.Graphics.Vulkan/HelperShader.cs

@@ -31,6 +31,7 @@ namespace Ryujinx.Graphics.Vulkan
         private readonly IProgram _programColorClearSI;
         private readonly IProgram _programColorClearUI;
         private readonly IProgram _programStrideChange;
+        private readonly IProgram _programConvertD32S8ToD24S8;
         private readonly IProgram _programConvertIndexBuffer;
         private readonly IProgram _programConvertIndirectData;
         private readonly IProgram _programColorCopyShortening;
@@ -158,6 +159,17 @@ namespace Ryujinx.Graphics.Vulkan
                 new ShaderSource(ShaderBinaries.ColorDrawToMsFragmentShaderSource, colorDrawToMsFragmentBindings, ShaderStage.Fragment, TargetLanguage.Spirv),
             });
 
+            var convertD32S8ToD24S8Bindings = new ShaderBindings(
+                new[] { 0 },
+                new[] { 1, 2 },
+                Array.Empty<int>(),
+                Array.Empty<int>());
+
+            _programConvertD32S8ToD24S8 = gd.CreateProgramWithMinimalLayout(new[]
+            {
+                new ShaderSource(ShaderBinaries.ConvertD32S8ToD24S8ShaderSource, convertD32S8ToD24S8Bindings, ShaderStage.Compute, TargetLanguage.Spirv),
+            });
+
             var convertIndexBufferBindings = new ShaderBindings(
                 new[] { 0 },
                 new[] { 1, 2 },
@@ -1644,6 +1656,82 @@ namespace Ryujinx.Graphics.Vulkan
             _pipeline.Finish(gd, cbs);
         }
 
+        public unsafe void ConvertD32S8ToD24S8(VulkanRenderer gd, CommandBufferScoped cbs, BufferHolder src, Auto<DisposableBuffer> dstBufferAuto, int pixelCount, int dstOffset)
+        {
+            int inSize = pixelCount * 2 * sizeof(int);
+            int outSize = pixelCount * sizeof(int);
+
+            var srcBufferAuto = src.GetBuffer();
+
+            var srcBuffer = srcBufferAuto.Get(cbs, 0, inSize).Value;
+            var dstBuffer = dstBufferAuto.Get(cbs, dstOffset, outSize).Value;
+
+            var access = AccessFlags.ShaderWriteBit;
+            var stage = PipelineStageFlags.ComputeShaderBit;
+
+            BufferHolder.InsertBufferBarrier(
+                gd,
+                cbs.CommandBuffer,
+                srcBuffer,
+                BufferHolder.DefaultAccessFlags,
+                AccessFlags.ShaderReadBit,
+                PipelineStageFlags.AllCommandsBit,
+                stage,
+                0,
+                outSize);
+
+            BufferHolder.InsertBufferBarrier(
+                gd,
+                cbs.CommandBuffer,
+                dstBuffer,
+                BufferHolder.DefaultAccessFlags,
+                access,
+                PipelineStageFlags.AllCommandsBit,
+                stage,
+                0,
+                outSize);
+
+            const int ParamsBufferSize = sizeof(int) * 2;
+
+            Span<int> shaderParams = stackalloc int[2];
+
+            shaderParams[0] = pixelCount;
+            shaderParams[1] = dstOffset;
+
+            var bufferHandle = gd.BufferManager.CreateWithHandle(gd, ParamsBufferSize);
+
+            gd.BufferManager.SetData<int>(bufferHandle, 0, shaderParams);
+
+            _pipeline.SetCommandBuffer(cbs);
+
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
+
+            Span<Auto<DisposableBuffer>> sbRanges = new Auto<DisposableBuffer>[2];
+
+            sbRanges[0] = srcBufferAuto;
+            sbRanges[1] = dstBufferAuto;
+
+            _pipeline.SetStorageBuffers(1, sbRanges);
+
+            _pipeline.SetProgram(_programConvertD32S8ToD24S8);
+            _pipeline.DispatchCompute(1, 1, 1);
+
+            gd.BufferManager.Delete(bufferHandle);
+
+            _pipeline.Finish(gd, cbs);
+
+            BufferHolder.InsertBufferBarrier(
+                gd,
+                cbs.CommandBuffer,
+                dstBuffer,
+                access,
+                BufferHolder.DefaultAccessFlags,
+                stage,
+                PipelineStageFlags.AllCommandsBit,
+                0,
+                outSize);
+        }
+
         protected virtual void Dispose(bool disposing)
         {
             if (disposing)

src/Ryujinx.Graphics.Vulkan/HostMemoryAllocator.cs

@@ -0,0 +1,188 @@
+using Ryujinx.Common;
+using Ryujinx.Common.Collections;
+using Ryujinx.Common.Logging;
+using Silk.NET.Vulkan;
+using Silk.NET.Vulkan.Extensions.EXT;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Vulkan
+{
+    internal class HostMemoryAllocator
+    {
+        private struct HostMemoryAllocation
+        {
+            public readonly Auto<MemoryAllocation> Allocation;
+            public readonly IntPtr Pointer;
+            public readonly ulong Size;
+
+            public ulong Start => (ulong)Pointer;
+            public ulong End => (ulong)Pointer + Size;
+
+            public HostMemoryAllocation(Auto<MemoryAllocation> allocation, IntPtr pointer, ulong size)
+            {
+                Allocation = allocation;
+                Pointer = pointer;
+                Size = size;
+            }
+        }
+
+        private readonly MemoryAllocator _allocator;
+        private readonly Vk _api;
+        private readonly ExtExternalMemoryHost _hostMemoryApi;
+        private readonly Device _device;
+        private readonly object _lock = new();
+
+        private List<HostMemoryAllocation> _allocations;
+        private IntervalTree<ulong, HostMemoryAllocation> _allocationTree;
+
+        public HostMemoryAllocator(MemoryAllocator allocator, Vk api, ExtExternalMemoryHost hostMemoryApi, Device device)
+        {
+            _allocator = allocator;
+            _api = api;
+            _hostMemoryApi = hostMemoryApi;
+            _device = device;
+
+            _allocations = new List<HostMemoryAllocation>();
+            _allocationTree = new IntervalTree<ulong, HostMemoryAllocation>();
+        }
+
+        public unsafe bool TryImport(
+            MemoryRequirements requirements,
+            MemoryPropertyFlags flags,
+            IntPtr pointer,
+            ulong size)
+        {
+            lock (_lock)
+            {
+                // Does a compatible allocation exist in the tree?
+                var allocations = new HostMemoryAllocation[10];
+
+                ulong start = (ulong)pointer;
+                ulong end = start + size;
+
+                int count = _allocationTree.Get(start, end, ref allocations);
+
+                // A compatible range is one that where the start and end completely cover the requested range.
+                for (int i = 0; i < count; i++)
+                {
+                    HostMemoryAllocation existing = allocations[i];
+
+                    if (start >= existing.Start && end <= existing.End)
+                    {
+                        try
+                        {
+                            existing.Allocation.IncrementReferenceCount();
+
+                            return true;
+                        }
+                        catch (InvalidOperationException)
+                        {
+                            // Can throw if the allocation has been disposed.
+                            // Just continue the search if this happens.
+                        }
+                    }
+                }
+
+                nint pageAlignedPointer = BitUtils.AlignDown(pointer, Environment.SystemPageSize);
+                nint pageAlignedEnd = BitUtils.AlignUp((nint)((ulong)pointer + size), Environment.SystemPageSize);
+                ulong pageAlignedSize = (ulong)(pageAlignedEnd - pageAlignedPointer);
+
+                Result getResult = _hostMemoryApi.GetMemoryHostPointerProperties(_device, ExternalMemoryHandleTypeFlags.HostAllocationBitExt, (void*)pageAlignedPointer, out MemoryHostPointerPropertiesEXT properties);
+                if (getResult < Result.Success)
+                {
+                    return false;
+                }
+
+                int memoryTypeIndex = _allocator.FindSuitableMemoryTypeIndex(properties.MemoryTypeBits & requirements.MemoryTypeBits, flags);
+                if (memoryTypeIndex < 0)
+                {
+                    return false;
+                }
+
+                ImportMemoryHostPointerInfoEXT importInfo = new ImportMemoryHostPointerInfoEXT()
+                {
+                    SType = StructureType.ImportMemoryHostPointerInfoExt,
+                    HandleType = ExternalMemoryHandleTypeFlags.HostAllocationBitExt,
+                    PHostPointer = (void*)pageAlignedPointer
+                };
+
+                var memoryAllocateInfo = new MemoryAllocateInfo()
+                {
+                    SType = StructureType.MemoryAllocateInfo,
+                    AllocationSize = pageAlignedSize,
+                    MemoryTypeIndex = (uint)memoryTypeIndex,
+                    PNext = &importInfo
+                };
+
+                Result result = _api.AllocateMemory(_device, memoryAllocateInfo, null, out var deviceMemory);
+
+                if (result < Result.Success)
+                {
+                    Logger.Debug?.PrintMsg(LogClass.Gpu, $"Host mapping import 0x{pageAlignedPointer:x16} 0x{pageAlignedSize:x8} failed.");
+                    return false;
+                }
+
+                var allocation = new MemoryAllocation(this, deviceMemory, pageAlignedPointer, 0, pageAlignedSize);
+                var allocAuto = new Auto<MemoryAllocation>(allocation);
+                var hostAlloc = new HostMemoryAllocation(allocAuto, pageAlignedPointer, pageAlignedSize);
+
+                allocAuto.IncrementReferenceCount();
+                allocAuto.Dispose(); // Kept alive by ref count only.
+
+                // Register this mapping for future use.
+
+                _allocationTree.Add(hostAlloc.Start, hostAlloc.End, hostAlloc);
+                _allocations.Add(hostAlloc);
+            }
+
+            return true;
+        }
+
+        public (Auto<MemoryAllocation>, ulong) GetExistingAllocation(IntPtr pointer, ulong size)
+        {
+            lock (_lock)
+            {
+                // Does a compatible allocation exist in the tree?
+                var allocations = new HostMemoryAllocation[10];
+
+                ulong start = (ulong)pointer;
+                ulong end = start + size;
+
+                int count = _allocationTree.Get(start, end, ref allocations);
+
+                // A compatible range is one that where the start and end completely cover the requested range.
+                for (int i = 0; i < count; i++)
+                {
+                    HostMemoryAllocation existing = allocations[i];
+
+                    if (start >= existing.Start && end <= existing.End)
+                    {
+                        return (existing.Allocation, start - existing.Start);
+                    }
+                }
+
+                throw new InvalidOperationException($"No host allocation was prepared for requested range 0x{pointer:x16}:0x{size:x16}.");
+            }
+        }
+
+        public void Free(DeviceMemory memory, ulong offset, ulong size)
+        {
+            lock (_lock)
+            {
+                _allocations.RemoveAll(allocation =>
+                {
+                    if (allocation.Allocation.GetUnsafe().Memory.Handle == memory.Handle)
+                    {
+                        _allocationTree.Remove(allocation.Start, allocation);
+                        return true;
+                    }
+
+                    return false;
+                });
+            }
+
+            _api.FreeMemory(_device, memory, ReadOnlySpan<AllocationCallbacks>.Empty);
+        }
+    }
+}

src/Ryujinx.Graphics.Vulkan/MemoryAllocation.cs

@@ -7,6 +7,7 @@ namespace Ryujinx.Graphics.Vulkan
     {
         private readonly MemoryAllocatorBlockList _owner;
         private readonly MemoryAllocatorBlockList.Block _block;
+        private readonly HostMemoryAllocator _hostMemory;
 
         public DeviceMemory Memory { get; }
         public IntPtr HostPointer { get;}
@@ -29,9 +30,30 @@ namespace Ryujinx.Graphics.Vulkan
             Size = size;
         }
 
+        public MemoryAllocation(
+            HostMemoryAllocator hostMemory,
+            DeviceMemory memory,
+            IntPtr hostPointer,
+            ulong offset,
+            ulong size)
+        {
+            _hostMemory = hostMemory;
+            Memory = memory;
+            HostPointer = hostPointer;
+            Offset = offset;
+            Size = size;
+        }
+
         public void Dispose()
         {
-            _owner.Free(_block, Offset, Size);
+            if (_hostMemory != null)
+            {
+                _hostMemory.Free(Memory, Offset, Size);
+            }
+            else
+            {
+                _owner.Free(_block, Offset, Size);
+            }
         }
     }
 }

src/Ryujinx.Graphics.Vulkan/MemoryAllocator.cs

@@ -57,7 +57,7 @@ namespace Ryujinx.Graphics.Vulkan
             return newBl.Allocate(size, alignment, map);
         }
 
-        private int FindSuitableMemoryTypeIndex(
+        internal int FindSuitableMemoryTypeIndex(
             uint memoryTypeBits,
             MemoryPropertyFlags flags)
         {

src/Ryujinx.Graphics.Vulkan/PipelineBase.cs

@@ -1015,8 +1015,8 @@ namespace Ryujinx.Graphics.Vulkan
 
         private void SetRenderTargetsInternal(ITexture[] colors, ITexture depthStencil, bool filterWriteMasked)
         {
-            FramebufferParams?.UpdateModifications();
             CreateFramebuffer(colors, depthStencil, filterWriteMasked);
+            FramebufferParams?.UpdateModifications();
             CreateRenderPass();
             SignalStateChange();
             SignalAttachmentChange();

src/Ryujinx.Graphics.Vulkan/Shaders/ConvertD32S8ToD24S8ShaderSource.comp

@@ -0,0 +1,58 @@
+#version 450 core
+
+#extension GL_EXT_scalar_block_layout : require
+
+layout (local_size_x = 64, local_size_y = 1, local_size_z = 1) in;
+
+layout (std430, set = 0, binding = 0) uniform stride_arguments
+{
+    int pixelCount;
+    int dstStartOffset;
+};
+
+layout (std430, set = 1, binding = 1) buffer in_s
+{
+    uint[] in_data;
+};
+
+layout (std430, set = 1, binding = 2) buffer out_s
+{
+    uint[] out_data;
+};
+
+void main()
+{
+    // Determine what slice of the stride copies this invocation will perform.
+    int invocations = int(gl_WorkGroupSize.x);
+
+    int copiesRequired = pixelCount;
+
+    // Find the copies that this invocation should perform.
+    
+    // - Copies that all invocations perform.
+    int allInvocationCopies = copiesRequired / invocations;
+
+    // - Extra remainder copy that this invocation performs.
+    int index = int(gl_LocalInvocationID.x);
+    int extra = (index < (copiesRequired % invocations)) ? 1 : 0;
+
+    int copyCount = allInvocationCopies + extra;
+
+    // Finally, get the starting offset. Make sure to count extra copies.
+
+    int startCopy = allInvocationCopies * index + min(copiesRequired % invocations, index);
+
+    int srcOffset = startCopy * 2;
+    int dstOffset = dstStartOffset + startCopy;
+
+    // Perform the conversion for this region.
+    for (int i = 0; i < copyCount; i++)
+    {
+        float depth = uintBitsToFloat(in_data[srcOffset++]);
+        uint stencil = in_data[srcOffset++];
+
+        uint rescaledDepth = uint(clamp(depth, 0.0, 1.0) * 16777215.0);
+
+        out_data[dstOffset++] = (rescaledDepth << 8) | (stencil & 0xff);
+    }
+}

src/Ryujinx.Graphics.Vulkan/Shaders/ShaderBinaries.cs

@@ -1236,6 +1236,213 @@ namespace Ryujinx.Graphics.Vulkan.Shaders
             0x38, 0x00, 0x01, 0x00,
         };
 
+        public static readonly byte[] ConvertD32S8ToD24S8ShaderSource = new byte[]
+        {
+            0x03, 0x02, 0x23, 0x07, 0x00, 0x05, 0x01, 0x00, 0x0A, 0x00, 0x0D, 0x00, 0x77, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0B, 0x00, 0x06, 0x00,
+            0x01, 0x00, 0x00, 0x00, 0x47, 0x4C, 0x53, 0x4C, 0x2E, 0x73, 0x74, 0x64, 0x2E, 0x34, 0x35, 0x30,
+            0x00, 0x00, 0x00, 0x00, 0x0E, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+            0x0F, 0x00, 0x09, 0x00, 0x05, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x6D, 0x61, 0x69, 0x6E,
+            0x00, 0x00, 0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x1A, 0x00, 0x00, 0x00, 0x4F, 0x00, 0x00, 0x00,
+            0x67, 0x00, 0x00, 0x00, 0x10, 0x00, 0x06, 0x00, 0x04, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, 0x00,
+            0x40, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03, 0x00, 0x03, 0x00,
+            0x02, 0x00, 0x00, 0x00, 0xC2, 0x01, 0x00, 0x00, 0x04, 0x00, 0x08, 0x00, 0x47, 0x4C, 0x5F, 0x45,
+            0x58, 0x54, 0x5F, 0x73, 0x63, 0x61, 0x6C, 0x61, 0x72, 0x5F, 0x62, 0x6C, 0x6F, 0x63, 0x6B, 0x5F,
+            0x6C, 0x61, 0x79, 0x6F, 0x75, 0x74, 0x00, 0x00, 0x04, 0x00, 0x0A, 0x00, 0x47, 0x4C, 0x5F, 0x47,
+            0x4F, 0x4F, 0x47, 0x4C, 0x45, 0x5F, 0x63, 0x70, 0x70, 0x5F, 0x73, 0x74, 0x79, 0x6C, 0x65, 0x5F,
+            0x6C, 0x69, 0x6E, 0x65, 0x5F, 0x64, 0x69, 0x72, 0x65, 0x63, 0x74, 0x69, 0x76, 0x65, 0x00, 0x00,
+            0x04, 0x00, 0x08, 0x00, 0x47, 0x4C, 0x5F, 0x47, 0x4F, 0x4F, 0x47, 0x4C, 0x45, 0x5F, 0x69, 0x6E,
+            0x63, 0x6C, 0x75, 0x64, 0x65, 0x5F, 0x64, 0x69, 0x72, 0x65, 0x63, 0x74, 0x69, 0x76, 0x65, 0x00,
+            0x05, 0x00, 0x04, 0x00, 0x04, 0x00, 0x00, 0x00, 0x6D, 0x61, 0x69, 0x6E, 0x00, 0x00, 0x00, 0x00,
+            0x05, 0x00, 0x05, 0x00, 0x08, 0x00, 0x00, 0x00, 0x69, 0x6E, 0x76, 0x6F, 0x63, 0x61, 0x74, 0x69,
+            0x6F, 0x6E, 0x73, 0x00, 0x05, 0x00, 0x06, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x63, 0x6F, 0x70, 0x69,
+            0x65, 0x73, 0x52, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64, 0x00, 0x00, 0x05, 0x00, 0x07, 0x00,
+            0x0B, 0x00, 0x00, 0x00, 0x73, 0x74, 0x72, 0x69, 0x64, 0x65, 0x5F, 0x61, 0x72, 0x67, 0x75, 0x6D,
+            0x65, 0x6E, 0x74, 0x73, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x06, 0x00, 0x0B, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x70, 0x69, 0x78, 0x65, 0x6C, 0x43, 0x6F, 0x75, 0x6E, 0x74, 0x00, 0x00,
+            0x06, 0x00, 0x07, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x64, 0x73, 0x74, 0x53,
+            0x74, 0x61, 0x72, 0x74, 0x4F, 0x66, 0x66, 0x73, 0x65, 0x74, 0x00, 0x00, 0x05, 0x00, 0x03, 0x00,
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+            0x2E, 0x00, 0x00, 0x00, 0x2F, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x31, 0x00, 0x00, 0x00, 0x0A, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x32, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x8B, 0x00, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x33, 0x00, 0x00, 0x00, 0x31, 0x00, 0x00, 0x00, 0x32, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x07, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x35, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00,
+            0x33, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x36, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x35, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00,
+            0x2D, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x38, 0x00, 0x00, 0x00, 0x2D, 0x00, 0x00, 0x00, 0x84, 0x00, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x3A, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x39, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00,
+            0x37, 0x00, 0x00, 0x00, 0x3A, 0x00, 0x00, 0x00, 0x41, 0x00, 0x05, 0x00, 0x0F, 0x00, 0x00, 0x00,
+            0x3C, 0x00, 0x00, 0x00, 0x0D, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x00, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00, 0x2D, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x3B, 0x00, 0x00, 0x00, 0x3F, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00,
+            0x40, 0x00, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x00, 0xF9, 0x00, 0x02, 0x00, 0x41, 0x00, 0x00, 0x00,
+            0xF8, 0x00, 0x02, 0x00, 0x41, 0x00, 0x00, 0x00, 0xF6, 0x00, 0x04, 0x00, 0x43, 0x00, 0x00, 0x00,
+            0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF9, 0x00, 0x02, 0x00, 0x45, 0x00, 0x00, 0x00,
+            0xF8, 0x00, 0x02, 0x00, 0x45, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x46, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x47, 0x00, 0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0xB1, 0x00, 0x05, 0x00, 0x25, 0x00, 0x00, 0x00,
+            0x48, 0x00, 0x00, 0x00, 0x46, 0x00, 0x00, 0x00, 0x47, 0x00, 0x00, 0x00, 0xFA, 0x00, 0x04, 0x00,
+            0x48, 0x00, 0x00, 0x00, 0x42, 0x00, 0x00, 0x00, 0x43, 0x00, 0x00, 0x00, 0xF8, 0x00, 0x02, 0x00,
+            0x42, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00,
+            0x37, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00, 0x51, 0x00, 0x00, 0x00,
+            0x50, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00, 0x37, 0x00, 0x00, 0x00,
+            0x51, 0x00, 0x00, 0x00, 0x41, 0x00, 0x06, 0x00, 0x52, 0x00, 0x00, 0x00, 0x53, 0x00, 0x00, 0x00,
+            0x4F, 0x00, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x50, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x17, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00, 0x00, 0x53, 0x00, 0x00, 0x00, 0x7C, 0x00, 0x04, 0x00,
+            0x49, 0x00, 0x00, 0x00, 0x55, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00,
+            0x4B, 0x00, 0x00, 0x00, 0x55, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x58, 0x00, 0x00, 0x00, 0x37, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00,
+            0x59, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x03, 0x00,
+            0x37, 0x00, 0x00, 0x00, 0x59, 0x00, 0x00, 0x00, 0x41, 0x00, 0x06, 0x00, 0x52, 0x00, 0x00, 0x00,
+            0x5A, 0x00, 0x00, 0x00, 0x4F, 0x00, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x58, 0x00, 0x00, 0x00,
+            0x3D, 0x00, 0x04, 0x00, 0x17, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00, 0x00, 0x5A, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x57, 0x00, 0x00, 0x00, 0x5B, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x49, 0x00, 0x00, 0x00, 0x5D, 0x00, 0x00, 0x00, 0x4B, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x08, 0x00,
+            0x49, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x2B, 0x00, 0x00, 0x00,
+            0x5D, 0x00, 0x00, 0x00, 0x5E, 0x00, 0x00, 0x00, 0x5F, 0x00, 0x00, 0x00, 0x85, 0x00, 0x05, 0x00,
+            0x49, 0x00, 0x00, 0x00, 0x62, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x61, 0x00, 0x00, 0x00,
+            0x6D, 0x00, 0x04, 0x00, 0x17, 0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x62, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x5C, 0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x3B, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x69, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x3B, 0x00, 0x00, 0x00, 0x69, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x17, 0x00, 0x00, 0x00, 0x6A, 0x00, 0x00, 0x00, 0x5C, 0x00, 0x00, 0x00, 0xC4, 0x00, 0x05, 0x00,
+            0x17, 0x00, 0x00, 0x00, 0x6C, 0x00, 0x00, 0x00, 0x6A, 0x00, 0x00, 0x00, 0x6B, 0x00, 0x00, 0x00,
+            0x3D, 0x00, 0x04, 0x00, 0x17, 0x00, 0x00, 0x00, 0x6D, 0x00, 0x00, 0x00, 0x57, 0x00, 0x00, 0x00,
+            0xC7, 0x00, 0x05, 0x00, 0x17, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00, 0x6D, 0x00, 0x00, 0x00,
+            0x6E, 0x00, 0x00, 0x00, 0xC5, 0x00, 0x05, 0x00, 0x17, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00,
+            0x6C, 0x00, 0x00, 0x00, 0x6F, 0x00, 0x00, 0x00, 0x41, 0x00, 0x06, 0x00, 0x52, 0x00, 0x00, 0x00,
+            0x71, 0x00, 0x00, 0x00, 0x67, 0x00, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x00, 0x68, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x71, 0x00, 0x00, 0x00, 0x70, 0x00, 0x00, 0x00, 0xF9, 0x00, 0x02, 0x00,
+            0x44, 0x00, 0x00, 0x00, 0xF8, 0x00, 0x02, 0x00, 0x44, 0x00, 0x00, 0x00, 0x3D, 0x00, 0x04, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x72, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x80, 0x00, 0x05, 0x00,
+            0x06, 0x00, 0x00, 0x00, 0x73, 0x00, 0x00, 0x00, 0x72, 0x00, 0x00, 0x00, 0x27, 0x00, 0x00, 0x00,
+            0x3E, 0x00, 0x03, 0x00, 0x40, 0x00, 0x00, 0x00, 0x73, 0x00, 0x00, 0x00, 0xF9, 0x00, 0x02, 0x00,
+            0x41, 0x00, 0x00, 0x00, 0xF8, 0x00, 0x02, 0x00, 0x43, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x01, 0x00,
+            0x38, 0x00, 0x01, 0x00
+        };
+
         public static readonly byte[] ConvertIndexBufferShaderSource = new byte[]
         {
             0x03, 0x02, 0x23, 0x07, 0x00, 0x00, 0x01, 0x00, 0x0A, 0x00, 0x08, 0x00, 0x91, 0x00, 0x00, 0x00,

src/Ryujinx.Graphics.Vulkan/SyncManager.cs

@@ -125,6 +125,24 @@ namespace Ryujinx.Graphics.Vulkan
 
             if (result != null)
             {
+                if (result.Waitable == null)
+                {
+                    return;
+                }
+
+                long beforeTicks = Stopwatch.GetTimestamp();
+
+                if (result.NeedsFlush(FlushId))
+                {
+                    _gd.InterruptAction(() =>
+                    {
+                        if (result.NeedsFlush(FlushId))
+                        {
+                            _gd.FlushAllCommands();
+                        }
+                    });
+                }
+
                 lock (result)
                 {
                     if (result.Waitable == null)
@@ -132,19 +150,6 @@ namespace Ryujinx.Graphics.Vulkan
                         return;
                     }
 
-                    long beforeTicks = Stopwatch.GetTimestamp();
-
-                    if (result.NeedsFlush(FlushId))
-                    {
-                        _gd.InterruptAction(() =>
-                        {
-                            if (result.NeedsFlush(FlushId))
-                            {
-                                _gd.FlushAllCommands();
-                            }
-                        });
-                    }
-
                     bool signaled = result.Signalled || result.Waitable.WaitForFences(_gd.Api, _device, 1000000000);
 
                     if (!signaled)

src/Ryujinx.Graphics.Vulkan/TextureBuffer.cs

@@ -67,6 +67,11 @@ namespace Ryujinx.Graphics.Vulkan
             return GetData();
         }
 
+        public void CopyTo(BufferRange range, int layer, int level, int stride)
+        {
+            throw new NotImplementedException();
+        }
+
         public void Release()
         {
             if (_gd.Textures.Remove(this))

src/Ryujinx.Graphics.Vulkan/TextureView.cs

@@ -563,6 +563,34 @@ namespace Ryujinx.Graphics.Vulkan
             }
         }
 
+        public void CopyTo(BufferRange range, int layer, int level, int stride)
+        {
+            _gd.PipelineInternal.EndRenderPass();
+            var cbs = _gd.PipelineInternal.CurrentCommandBuffer;
+
+            int outSize = Info.GetMipSize(level);
+            int hostSize = GetBufferDataLength(outSize);
+
+            var image = GetImage().Get(cbs).Value;
+            int offset = range.Offset;
+
+            Auto<DisposableBuffer> autoBuffer = _gd.BufferManager.GetBuffer(cbs.CommandBuffer, range.Handle, true);
+            VkBuffer buffer = autoBuffer.Get(cbs, range.Offset, outSize).Value;
+
+            if (PrepareOutputBuffer(cbs, hostSize, buffer, out VkBuffer copyToBuffer, out BufferHolder tempCopyHolder))
+            {
+                offset = 0;
+            }
+
+            CopyFromOrToBuffer(cbs.CommandBuffer, copyToBuffer, image, hostSize, true, layer, level, 1, 1, singleSlice: true, offset, stride);
+
+            if (tempCopyHolder != null)
+            {
+                CopyDataToOutputBuffer(cbs, tempCopyHolder, autoBuffer, hostSize, range.Offset);
+                tempCopyHolder.Dispose();
+            }
+        }
+
         private ReadOnlySpan<byte> GetData(CommandBufferPool cbp, PersistentFlushBuffer flushBuffer)
         {
             int size = 0;
@@ -693,6 +721,30 @@ namespace Ryujinx.Graphics.Vulkan
             return storage;
         }
 
+        private bool PrepareOutputBuffer(CommandBufferScoped cbs, int hostSize, VkBuffer target, out VkBuffer copyTarget, out BufferHolder copyTargetHolder)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                copyTargetHolder = _gd.BufferManager.Create(_gd, hostSize);
+                copyTarget = copyTargetHolder.GetBuffer().Get(cbs, 0, hostSize).Value;
+
+                return true;
+            }
+
+            copyTarget = target;
+            copyTargetHolder = null;
+
+            return false;
+        }
+
+        private void CopyDataToOutputBuffer(CommandBufferScoped cbs, BufferHolder hostData, Auto<DisposableBuffer> copyTarget, int hostSize, int dstOffset)
+        {
+            if (NeedsD24S8Conversion())
+            {
+                _gd.HelperShader.ConvertD32S8ToD24S8(_gd, cbs, hostData, copyTarget, hostSize / (2 * sizeof(int)), dstOffset);
+            }
+        }
+
         private bool NeedsD24S8Conversion()
         {
             return FormatCapabilities.IsD24S8(Info.Format) && VkFormat == VkFormat.D32SfloatS8Uint;
@@ -708,7 +760,9 @@ namespace Ryujinx.Graphics.Vulkan
             int dstLevel,
             int dstLayers,
             int dstLevels,
-            bool singleSlice)
+            bool singleSlice,
+            int offset = 0,
+            int stride = 0)
         {
             bool is3D = Info.Target == Target.Texture3D;
             int width = Math.Max(1, Info.Width >> dstLevel);
@@ -718,8 +772,6 @@ namespace Ryujinx.Graphics.Vulkan
             int layers = dstLayers;
             int levels = dstLevels;
 
-            int offset = 0;
-
             for (int level = 0; level < levels; level++)
             {
                 int mipSize = GetBufferDataLength(Info.GetMipSize2D(dstLevel + level) * dstLayers);
@@ -731,7 +783,7 @@ namespace Ryujinx.Graphics.Vulkan
                     break;
                 }
 
-                int rowLength = (Info.GetMipStride(dstLevel + level) / Info.BytesPerPixel) * Info.BlockWidth;
+                int rowLength = ((stride == 0 ? Info.GetMipStride(dstLevel + level) : stride) / Info.BytesPerPixel) * Info.BlockWidth;
 
                 var aspectFlags = Info.Format.ConvertAspectFlags();
 

src/Ryujinx.Graphics.Vulkan/VulkanInitialization.cs

@@ -27,6 +27,7 @@ namespace Ryujinx.Graphics.Vulkan
             ExtTransformFeedback.ExtensionName,
             KhrDrawIndirectCount.ExtensionName,
             KhrPushDescriptor.ExtensionName,
+            ExtExternalMemoryHost.ExtensionName,
             "VK_EXT_blend_operation_advanced",
             "VK_EXT_custom_border_color",
             "VK_EXT_descriptor_indexing", // Enabling this works around an issue with disposed buffer bindings on RADV.

src/Ryujinx.Graphics.Vulkan/VulkanRenderer.cs

@@ -44,6 +44,7 @@ namespace Ryujinx.Graphics.Vulkan
         internal object QueueLock { get; private set; }
 
         internal MemoryAllocator MemoryAllocator { get; private set; }
+        internal HostMemoryAllocator HostMemoryAllocator { get; private set; }
         internal CommandBufferPool CommandBufferPool { get; private set; }
         internal DescriptorSetManager DescriptorSetManager { get; private set; }
         internal PipelineLayoutCache PipelineLayoutCache { get; private set; }
@@ -307,6 +308,7 @@ namespace Ryujinx.Graphics.Vulkan
                 _physicalDevice.PhysicalDeviceFeatures.PipelineStatisticsQuery,
                 _physicalDevice.PhysicalDeviceFeatures.GeometryShader,
                 _physicalDevice.IsDeviceExtensionPresent("VK_NV_viewport_array2"),
+                _physicalDevice.IsDeviceExtensionPresent(ExtExternalMemoryHost.ExtensionName),
                 propertiesSubgroupSizeControl.MinSubgroupSize,
                 propertiesSubgroupSizeControl.MaxSubgroupSize,
                 propertiesSubgroupSizeControl.RequiredSubgroupSizeStages,
@@ -319,6 +321,9 @@ namespace Ryujinx.Graphics.Vulkan
 
             MemoryAllocator = new MemoryAllocator(Api, _physicalDevice, _device);
 
+            Api.TryGetDeviceExtension(_instance.Instance, _device, out ExtExternalMemoryHost hostMemoryApi);
+            HostMemoryAllocator = new HostMemoryAllocator(MemoryAllocator, Api, hostMemoryApi, _device);
+
             CommandBufferPool = new CommandBufferPool(Api, _device, Queue, QueueLock, queueFamilyIndex);
 
             DescriptorSetManager = new DescriptorSetManager(_device);
@@ -375,11 +380,21 @@ namespace Ryujinx.Graphics.Vulkan
             _initialized = true;
         }
 
+        public BufferHandle CreateBuffer(int size, BufferAccess access)
+        {
+            return BufferManager.CreateWithHandle(this, size, access.Convert());
+        }
+
         public BufferHandle CreateBuffer(int size, BufferHandle storageHint)
         {
             return BufferManager.CreateWithHandle(this, size, BufferAllocationType.Auto, storageHint);
         }
 
+        public BufferHandle CreateBuffer(nint pointer, int size)
+        {
+            return BufferManager.CreateHostImported(this, pointer, size);
+        }
+
         public IProgram CreateProgram(ShaderSource[] sources, ShaderInfo info)
         {
             bool isCompute = sources.Length == 1 && sources[0].Stage == ShaderStage.Compute;
@@ -816,5 +831,11 @@ namespace Ryujinx.Graphics.Vulkan
             // Last step destroy the instance
             _instance.Dispose();
         }
+
+        public bool PrepareHostMapping(nint address, ulong size)
+        {
+            return Capabilities.SupportsHostImportedMemory &&
+                HostMemoryAllocator.TryImport(BufferManager.HostImportedBufferMemoryRequirements, BufferManager.DefaultBufferMemoryFlags, address, size);
+        }
     }
 }

src/Ryujinx.HLE/HOS/Horizon.cs

@@ -327,7 +327,7 @@ namespace Ryujinx.HLE.HOS
         private void StartNewServices()
         {
             ServiceTable = new ServiceTable();
-            var services = ServiceTable.GetServices(new HorizonOptions(Device.Configuration.IgnoreMissingServices));
+            var services = ServiceTable.GetServices(new HorizonOptions(Device.Configuration.IgnoreMissingServices, LibHacHorizonManager.BcatClient));
 
             foreach (var service in services)
             {

src/Ryujinx.HLE/HOS/Services/Bcat/IServiceCreator.cs

@@ -1,85 +0,0 @@
-using LibHac;
-using LibHac.Common;
-using Ryujinx.Common;
-using Ryujinx.HLE.HOS.Services.Arp;
-using Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat
-{
-    [Service("bcat:a", "bcat:a")]
-    [Service("bcat:m", "bcat:m")]
-    [Service("bcat:u", "bcat:u")]
-    [Service("bcat:s", "bcat:s")]
-    class IServiceCreator : DisposableIpcService
-    {
-        private SharedRef<LibHac.Bcat.Impl.Ipc.IServiceCreator> _base;
-
-        public IServiceCreator(ServiceCtx context, string serviceName)
-        {
-            var applicationClient = context.Device.System.LibHacHorizonManager.ApplicationClient;
-            applicationClient.Sm.GetService(ref _base, serviceName).ThrowIfFailure();
-        }
-
-        protected override void Dispose(bool isDisposing)
-        {
-            if (isDisposing)
-            {
-                _base.Destroy();
-            }
-        }
-
-        [CommandCmif(0)]
-        // CreateBcatService(pid) -> object<nn::bcat::detail::ipc::IBcatService>
-        public ResultCode CreateBcatService(ServiceCtx context)
-        {
-            // TODO: Call arp:r GetApplicationLaunchProperty with the pid to get the TitleId.
-            //       Add an instance of nn::bcat::detail::service::core::PassphraseManager.
-            //       Add an instance of nn::bcat::detail::service::ServiceMemoryManager.
-            //       Add an instance of nn::bcat::detail::service::core::TaskManager who load "bcat-sys:/" system save data and open "dc/task.bin". 
-            //       If the file don't exist, create a new one (size of 0x800) and write 2 empty struct with a size of 0x400.
-
-            MakeObject(context, new IBcatService(ApplicationLaunchProperty.GetByPid(context)));
-
-            // NOTE: If the IBcatService is null this error is returned, Doesn't occur in our case. 
-            //       return ResultCode.NullObject;
-
-            return ResultCode.Success;
-        }
-
-        [CommandCmif(1)]
-        // CreateDeliveryCacheStorageService(pid) -> object<nn::bcat::detail::ipc::IDeliveryCacheStorageService>
-        public ResultCode CreateDeliveryCacheStorageService(ServiceCtx context)
-        {
-            ulong pid = context.RequestData.ReadUInt64();
-
-            using var serv = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>();
-
-            Result rc = _base.Get.CreateDeliveryCacheStorageService(ref serv.Ref, pid);
-
-            if (rc.IsSuccess())
-            {
-                MakeObject(context, new IDeliveryCacheStorageService(context, ref serv.Ref));
-            }
-
-            return (ResultCode)rc.Value;
-        }
-
-        [CommandCmif(2)]
-        // CreateDeliveryCacheStorageServiceWithApplicationId(nn::ApplicationId) -> object<nn::bcat::detail::ipc::IDeliveryCacheStorageService>
-        public ResultCode CreateDeliveryCacheStorageServiceWithApplicationId(ServiceCtx context)
-        {
-            ApplicationId applicationId = context.RequestData.ReadStruct<ApplicationId>();
-
-            using var service = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>();
-
-            Result rc = _base.Get.CreateDeliveryCacheStorageServiceWithApplicationId(ref service.Ref, applicationId);
-
-            if (rc.IsSuccess())
-            {
-                MakeObject(context, new IDeliveryCacheStorageService(context, ref service.Ref));
-            }
-
-            return (ResultCode)rc.Value;
-        }
-    }
-}

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

@@ -1,29 +0,0 @@
-namespace Ryujinx.HLE.HOS.Services.Bcat
-{
-    enum ResultCode
-    {
-        ModuleId       = 122,
-        ErrorCodeShift = 9,
-
-        Success = 0,
-
-        InvalidArgument                   = (1 << ErrorCodeShift) | ModuleId,
-        NotFound                          = (2 << ErrorCodeShift) | ModuleId,
-        TargetLocked                      = (3 << ErrorCodeShift) | ModuleId,
-        TargetAlreadyMounted              = (4 << ErrorCodeShift) | ModuleId,
-        TargetNotMounted                  = (5 << ErrorCodeShift) | ModuleId,
-        AlreadyOpen                       = (6 << ErrorCodeShift) | ModuleId,
-        NotOpen                           = (7 << ErrorCodeShift) | ModuleId,
-        InternetRequestDenied             = (8 << ErrorCodeShift) | ModuleId,
-        ServiceOpenLimitReached           = (9 << ErrorCodeShift) | ModuleId,
-        SaveDataNotFound                  = (10 << ErrorCodeShift) | ModuleId,
-        NetworkServiceAccountNotAvailable = (31 << ErrorCodeShift) | ModuleId,
-        PassphrasePathNotFound            = (80 << ErrorCodeShift) | ModuleId,
-        DataVerificationFailed            = (81 << ErrorCodeShift) | ModuleId,
-        PermissionDenied                  = (90 << ErrorCodeShift) | ModuleId,
-        AllocationFailed                  = (91 << ErrorCodeShift) | ModuleId,
-        InvalidOperation                  = (98 << ErrorCodeShift) | ModuleId,
-        InvalidDeliveryCacheStorageFile   = (204 << ErrorCodeShift) | ModuleId,
-        StorageOpenLimitReached           = (205 << ErrorCodeShift) | ModuleId
-    }
-}

src/Ryujinx.HLE/HOS/Services/Bcat/ServiceCreator/IBcatService.cs

@@ -1,18 +0,0 @@
-using Ryujinx.HLE.HOS.Services.Arp;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator
-{
-    class IBcatService : IpcService
-    {
-        public IBcatService(ApplicationLaunchProperty applicationLaunchProperty) { }
-
-        [CommandCmif(10100)]
-        // RequestSyncDeliveryCache() -> object<nn::bcat::detail::ipc::IDeliveryCacheProgressService>
-        public ResultCode RequestSyncDeliveryCache(ServiceCtx context)
-        {
-            MakeObject(context, new IDeliveryCacheProgressService(context));
-
-            return ResultCode.Success;
-        }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Bcat/ServiceCreator/IDeliveryCacheDirectoryService.cs

@@ -1,65 +0,0 @@
-using LibHac;
-using LibHac.Bcat;
-using LibHac.Common;
-using Ryujinx.Common;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator
-{
-    class IDeliveryCacheDirectoryService : DisposableIpcService
-    {
-        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService> _base;
-
-        public IDeliveryCacheDirectoryService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService> baseService)
-        {
-            _base = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService>.CreateMove(ref baseService);
-        }
-
-        protected override void Dispose(bool isDisposing)
-        {
-            if (isDisposing)
-            {
-                _base.Destroy();
-            }
-        }
-
-        [CommandCmif(0)]
-        // Open(nn::bcat::DirectoryName)
-        public ResultCode Open(ServiceCtx context)
-        {
-            DirectoryName directoryName = context.RequestData.ReadStruct<DirectoryName>();
-
-            Result result = _base.Get.Open(ref directoryName);
-
-            return (ResultCode)result.Value;
-        }
-
-        [CommandCmif(1)]
-        // Read() -> (u32, buffer<nn::bcat::DeliveryCacheDirectoryEntry, 6>)
-        public ResultCode Read(ServiceCtx context)
-        {
-            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
-            ulong bufferLen = context.Request.ReceiveBuff[0].Size;
-
-            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
-            {
-                Result result = _base.Get.Read(out int entriesRead, MemoryMarshal.Cast<byte, DeliveryCacheDirectoryEntry>(region.Memory.Span));
-
-                context.ResponseData.Write(entriesRead);
-
-                return (ResultCode)result.Value;
-            }
-        }
-
-        [CommandCmif(2)]
-        // GetCount() -> u32
-        public ResultCode GetCount(ServiceCtx context)
-        {
-            Result result = _base.Get.GetCount(out int count);
-
-            context.ResponseData.Write(count);
-
-            return (ResultCode)result.Value;
-        }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Bcat/ServiceCreator/IDeliveryCacheFileService.cs

@@ -1,78 +0,0 @@
-using LibHac;
-using LibHac.Bcat;
-using LibHac.Common;
-using Ryujinx.Common;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator
-{
-    class IDeliveryCacheFileService : DisposableIpcService
-    {
-        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService> _base;
-
-        public IDeliveryCacheFileService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService> baseService)
-        {
-            _base = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService>.CreateMove(ref baseService);
-        }
-
-        protected override void Dispose(bool isDisposing)
-        {
-            if (isDisposing)
-            {
-                _base.Destroy();
-            }
-        }
-
-        [CommandCmif(0)]
-        // Open(nn::bcat::DirectoryName, nn::bcat::FileName)
-        public ResultCode Open(ServiceCtx context)
-        {
-            DirectoryName directoryName = context.RequestData.ReadStruct<DirectoryName>();
-            FileName fileName = context.RequestData.ReadStruct<FileName>();
-
-            Result result = _base.Get.Open(ref directoryName, ref fileName);
-
-            return (ResultCode)result.Value;
-        }
-
-        [CommandCmif(1)]
-        // Read(u64) -> (u64, buffer<bytes, 6>)
-        public ResultCode Read(ServiceCtx context)
-        {
-            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
-            ulong bufferLen = context.Request.ReceiveBuff[0].Size;
-
-            long offset = context.RequestData.ReadInt64();
-
-            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
-            {
-                Result result = _base.Get.Read(out long bytesRead, offset, region.Memory.Span);
-
-                context.ResponseData.Write(bytesRead);
-
-                return (ResultCode)result.Value;
-            }
-        }
-
-        [CommandCmif(2)]
-        // GetSize() -> u64
-        public ResultCode GetSize(ServiceCtx context)
-        {
-            Result result = _base.Get.GetSize(out long size);
-
-            context.ResponseData.Write(size);
-
-            return (ResultCode)result.Value;
-        }
-
-        [CommandCmif(3)]
-        // GetDigest() -> nn::bcat::Digest
-        public ResultCode GetDigest(ServiceCtx context)
-        {
-            Result result = _base.Get.GetDigest(out Digest digest);
-
-            context.ResponseData.WriteStruct(digest);
-
-            return (ResultCode)result.Value;
-        }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Bcat/ServiceCreator/IDeliveryCacheProgressService.cs

@@ -1,63 +0,0 @@
-using Ryujinx.Common.Logging;
-using Ryujinx.Cpu;
-using Ryujinx.HLE.HOS.Ipc;
-using Ryujinx.HLE.HOS.Kernel.Threading;
-using Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator.Types;
-using Ryujinx.Horizon.Common;
-using System;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator
-{
-    class IDeliveryCacheProgressService : IpcService
-    {
-        private KEvent _event;
-        private int    _eventHandle;
-
-        public IDeliveryCacheProgressService(ServiceCtx context)
-        {
-            _event = new KEvent(context.Device.System.KernelContext);
-        }
-
-        [CommandCmif(0)]
-        // GetEvent() -> handle<copy>
-        public ResultCode GetEvent(ServiceCtx context)
-        {
-            if (_eventHandle == 0)
-            {
-                if (context.Process.HandleTable.GenerateHandle(_event.ReadableEvent, out _eventHandle) != Result.Success)
-                {
-                    throw new InvalidOperationException("Out of handles!");
-                }
-            }
-
-            context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_eventHandle);
-
-            Logger.Stub?.PrintStub(LogClass.ServiceBcat);
-
-            return ResultCode.Success;
-        }
-
-        [CommandCmif(1)]
-        // GetImpl() -> buffer<nn::bcat::detail::DeliveryCacheProgressImpl, 0x1a>
-        public ResultCode GetImpl(ServiceCtx context)
-        {
-            DeliveryCacheProgressImpl deliveryCacheProgress = new DeliveryCacheProgressImpl
-            {
-                State  = DeliveryCacheProgressImpl.Status.Done,
-                Result = 0
-            };
-
-            ulong dcpSize = WriteDeliveryCacheProgressImpl(context, context.Request.RecvListBuff[0], deliveryCacheProgress);
-            context.Response.PtrBuff[0] = context.Response.PtrBuff[0].WithSize(dcpSize);
-
-            Logger.Stub?.PrintStub(LogClass.ServiceBcat);
-
-            return ResultCode.Success;
-        }
-
-        private ulong WriteDeliveryCacheProgressImpl(ServiceCtx context, IpcRecvListBuffDesc ipcDesc, DeliveryCacheProgressImpl deliveryCacheProgress)
-        {
-            return MemoryHelper.Write(context.Memory, ipcDesc.Position, deliveryCacheProgress);
-        }
-    }
-}

src/Ryujinx.HLE/HOS/Services/Bcat/ServiceCreator/IDeliveryCacheStorageService.cs

@@ -1,74 +0,0 @@
-using LibHac;
-using LibHac.Bcat;
-using LibHac.Common;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator
-{
-    class IDeliveryCacheStorageService : DisposableIpcService
-    {
-        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> _base;
-
-        public IDeliveryCacheStorageService(ServiceCtx context, ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> baseService)
-        {
-            _base = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>.CreateMove(ref baseService);
-        }
-
-        [CommandCmif(0)]
-        // CreateFileService() -> object<nn::bcat::detail::ipc::IDeliveryCacheFileService>
-        public ResultCode CreateFileService(ServiceCtx context)
-        {
-            using var service = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService>();
-
-            Result result = _base.Get.CreateFileService(ref service.Ref);
-
-            if (result.IsSuccess())
-            {
-                MakeObject(context, new IDeliveryCacheFileService(ref service.Ref));
-            }
-
-            return (ResultCode)result.Value;
-        }
-
-        [CommandCmif(1)]
-        // CreateDirectoryService() -> object<nn::bcat::detail::ipc::IDeliveryCacheDirectoryService>
-        public ResultCode CreateDirectoryService(ServiceCtx context)
-        {
-            using var service = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService>();
-
-            Result result = _base.Get.CreateDirectoryService(ref service.Ref);
-
-            if (result.IsSuccess())
-            {
-                MakeObject(context, new IDeliveryCacheDirectoryService(ref service.Ref));
-            }
-
-            return (ResultCode)result.Value;
-        }
-
-        [CommandCmif(10)]
-        // EnumerateDeliveryCacheDirectory() -> (u32, buffer<nn::bcat::DirectoryName, 6>)
-        public ResultCode EnumerateDeliveryCacheDirectory(ServiceCtx context)
-        {
-            ulong bufferAddress = context.Request.ReceiveBuff[0].Position;
-            ulong bufferLen = context.Request.ReceiveBuff[0].Size;
-
-            using (var region = context.Memory.GetWritableRegion(bufferAddress, (int)bufferLen, true))
-            {
-                Result result = _base.Get.EnumerateDeliveryCacheDirectory(out int count, MemoryMarshal.Cast<byte, DirectoryName>(region.Memory.Span));
-
-                context.ResponseData.Write(count);
-
-                return (ResultCode)result.Value;
-            }
-        }
-
-        protected override void Dispose(bool isDisposing)
-        {
-            if (isDisposing)
-            {
-                _base.Destroy();
-            }
-        }
-    }
-}

src/Ryujinx.Headless.SDL2/HideCursor.cs

@@ -1,9 +0,0 @@
-namespace Ryujinx.Headless.SDL2
-{
-    public enum HideCursor
-    {
-        Never,
-        OnIdle,
-        Always
-    }
-}

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

@@ -107,8 +107,8 @@ namespace Ryujinx.Headless.SDL2.OpenGL
             GraphicsDebugLevel glLogLevel,
             AspectRatio aspectRatio,
             bool enableMouse,
-            HideCursor hideCursor)
-            : base(inputManager, glLogLevel, aspectRatio, enableMouse, hideCursor)
+            HideCursorMode hideCursorMode)
+            : base(inputManager, glLogLevel, aspectRatio, enableMouse, hideCursorMode)
         {
             _glLogLevel = glLogLevel;
         }

src/Ryujinx.Headless.SDL2/Options.cs

@@ -76,8 +76,8 @@ namespace Ryujinx.Headless.SDL2
         [Option("enable-mouse", Required = false, Default = false, HelpText = "Enable or disable mouse support.")]
         public bool EnableMouse { get; set; }
 
-        [Option("hide-cursor", Required = false, Default = HideCursor.OnIdle, HelpText = "Change when the cursor gets hidden.")]
-        public HideCursor HideCursor { get; set; }
+        [Option("hide-cursor", Required = false, Default = HideCursorMode.OnIdle, HelpText = "Change when the cursor gets hidden.")]
+        public HideCursorMode HideCursorMode { get; set; }
 
         [Option("list-input-profiles", Required = false, HelpText = "List inputs profiles.")]
         public bool ListInputProfiles { get; set; }

src/Ryujinx.Headless.SDL2/Program.cs

@@ -478,8 +478,8 @@ namespace Ryujinx.Headless.SDL2
         private static WindowBase CreateWindow(Options options)
         {
             return options.GraphicsBackend == GraphicsBackend.Vulkan
-                ? new VulkanWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursor)
-                : new OpenGLWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursor);
+                ? new VulkanWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursorMode)
+                : new OpenGLWindow(_inputManager, options.LoggingGraphicsDebugLevel, options.AspectRatio, options.EnableMouse, options.HideCursorMode);
         }
 
         private static IRenderer CreateRenderer(Options options, WindowBase window)

src/Ryujinx.Headless.SDL2/SDL2MouseDriver.cs

@@ -1,4 +1,5 @@
-using Ryujinx.Input;
+using Ryujinx.Common.Configuration;
+using Ryujinx.Input;
 using System;
 using System.Diagnostics;
 using System.Drawing;
@@ -13,7 +14,7 @@ namespace Ryujinx.Headless.SDL2
         private const int CursorHideIdleTime = 5; // seconds
 
         private bool _isDisposed;
-        private HideCursor _hideCursor;
+        private HideCursorMode _hideCursorMode;
         private bool _isHidden;
         private long _lastCursorMoveTime;
 
@@ -23,12 +24,12 @@ namespace Ryujinx.Headless.SDL2
         public Vector2 Scroll { get; private set; }
         public Size _clientSize;
 
-        public SDL2MouseDriver(HideCursor hideCursor)
+        public SDL2MouseDriver(HideCursorMode hideCursorMode)
         {
             PressedButtons = new bool[(int)MouseButton.Count];
-            _hideCursor = hideCursor;
+            _hideCursorMode = hideCursorMode;
 
-            if (_hideCursor == HideCursor.Always)
+            if (_hideCursorMode == HideCursorMode.Always)
             {
                 SDL_ShowCursor(SDL_DISABLE);
                 _isHidden = true;
@@ -59,7 +60,7 @@ namespace Ryujinx.Headless.SDL2
 
         private void CheckIdle()
         {
-            if (_hideCursor != HideCursor.OnIdle)
+            if (_hideCursorMode != HideCursorMode.OnIdle)
             {
                 return;
             }

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

@@ -17,8 +17,8 @@ namespace Ryujinx.Headless.SDL2.Vulkan
             GraphicsDebugLevel glLogLevel,
             AspectRatio aspectRatio,
             bool enableMouse,
-            HideCursor hideCursor)
-            : base(inputManager, glLogLevel, aspectRatio, enableMouse, hideCursor)
+            HideCursorMode hideCursorMode)
+            : base(inputManager, glLogLevel, aspectRatio, enableMouse, hideCursorMode)
         {
             _glLogLevel = glLogLevel;
         }

src/Ryujinx.Headless.SDL2/WindowBase.cs

@@ -78,9 +78,9 @@ namespace Ryujinx.Headless.SDL2
             GraphicsDebugLevel glLogLevel,
             AspectRatio aspectRatio,
             bool enableMouse,
-            HideCursor hideCursor)
+            HideCursorMode hideCursorMode)
         {
-            MouseDriver = new SDL2MouseDriver(hideCursor);
+            MouseDriver = new SDL2MouseDriver(hideCursorMode);
             _inputManager = inputManager;
             _inputManager.SetMouseDriver(MouseDriver);
             NpadManager = _inputManager.CreateNpadManager();

src/Ryujinx.Horizon/Bcat/BcatIpcServer.cs

@@ -0,0 +1,48 @@
+using Ryujinx.Horizon.Bcat.Ipc;
+using Ryujinx.Horizon.Bcat.Types;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using Ryujinx.Horizon.Sdk.Sm;
+
+namespace Ryujinx.Horizon.Bcat
+{
+    internal class BcatIpcServer
+    {
+        private const int BcatMaxSessionsCount = 8;
+        private const int BcatTotalMaxSessionsCount = BcatMaxSessionsCount * 4; 
+
+        private const int PointerBufferSize = 0x400;
+        private const int MaxDomains = 64;
+        private const int MaxDomainObjects = 64;
+        private const int MaxPortsCount = 4;
+
+        private SmApi _sm;
+        private BcatServerManager _serverManager;
+
+        private static readonly ManagerOptions _bcatManagerOptions = new(PointerBufferSize, MaxDomains, MaxDomainObjects, false);
+
+        internal void Initialize()
+        {
+            HeapAllocator allocator = new();
+
+            _sm = new SmApi();
+            _sm.Initialize().AbortOnFailure();
+
+            _serverManager = new BcatServerManager(allocator, _sm, MaxPortsCount, _bcatManagerOptions, BcatTotalMaxSessionsCount);
+
+            _serverManager.RegisterServer((int)BcatPortIndex.Admin,   ServiceName.Encode("bcat:a"), BcatMaxSessionsCount);
+            _serverManager.RegisterServer((int)BcatPortIndex.Manager, ServiceName.Encode("bcat:m"), BcatMaxSessionsCount);
+            _serverManager.RegisterServer((int)BcatPortIndex.User,    ServiceName.Encode("bcat:u"), BcatMaxSessionsCount);
+            _serverManager.RegisterServer((int)BcatPortIndex.System,  ServiceName.Encode("bcat:s"), BcatMaxSessionsCount);
+        }
+
+        public void ServiceRequests()
+        {
+            _serverManager.ServiceRequests();
+        }
+
+        public void Shutdown()
+        {
+            _serverManager.Dispose();
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/BcatMain.cs

@@ -0,0 +1,24 @@
+using Ryujinx.Horizon.LogManager;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Ryujinx.Horizon.Bcat
+{
+    internal class BcatMain : IService
+    {
+        public static void Main(ServiceTable serviceTable)
+        {
+            BcatIpcServer ipcServer = new();
+
+            ipcServer.Initialize();
+
+            serviceTable.SignalServiceReady();
+
+            ipcServer.ServiceRequests();
+            ipcServer.Shutdown();
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/BcatResult.cs

@@ -0,0 +1,29 @@
+using Ryujinx.Horizon.Common;
+
+namespace Ryujinx.Horizon.Bcat
+{
+    class BcatResult
+    {
+        private const int ModuleId = 122;
+
+        public static Result Success => new(ModuleId, 0);
+        public static Result InvalidArgument => new(ModuleId, 1);
+        public static Result NotFound => new(ModuleId, 2);
+        public static Result TargetLocked => new(ModuleId, 3);
+        public static Result TargetAlreadyMounted => new(ModuleId, 4);
+        public static Result TargetNotMounted => new(ModuleId, 5);
+        public static Result AlreadyOpen => new(ModuleId, 6);
+        public static Result NotOpen => new(ModuleId, 7);
+        public static Result InternetRequestDenied => new(ModuleId, 8);
+        public static Result ServiceOpenLimitReached => new(ModuleId, 9);
+        public static Result SaveDataNotFound => new(ModuleId, 10);
+        public static Result NetworkServiceAccountNotAvailable => new(ModuleId, 31);
+        public static Result PassphrasePathNotFound => new(ModuleId, 80);
+        public static Result DataVerificationFailed => new(ModuleId, 81);
+        public static Result PermissionDenied => new(ModuleId, 90);
+        public static Result AllocationFailed => new(ModuleId, 91);
+        public static Result InvalidOperation => new(ModuleId, 98);
+        public static Result InvalidDeliveryCacheStorageFile => new(ModuleId, 204);
+        public static Result StorageOpenLimitReached => new(ModuleId, 205);
+    }
+}

src/Ryujinx.Horizon/Bcat/BcatServerManager.cs

@@ -0,0 +1,28 @@
+using Ryujinx.Horizon.Bcat.Ipc;
+using Ryujinx.Horizon.Bcat.Types;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using Ryujinx.Horizon.Sdk.Sm;
+using System;
+
+namespace Ryujinx.Horizon.Bcat
+{
+    class BcatServerManager : ServerManager
+    {
+        public BcatServerManager(HeapAllocator allocator, SmApi sm, int maxPorts, ManagerOptions options, int maxSessions) : base(allocator, sm, maxPorts, options, maxSessions)
+        {
+        }
+
+        protected override Result OnNeedsToAccept(int portIndex, Server server)
+        {
+            return (BcatPortIndex)portIndex switch
+            {
+                BcatPortIndex.Admin   => AcceptImpl(server, new BcatService(BcatServicePermissionLevel.Admin)),
+                BcatPortIndex.Manager => AcceptImpl(server, new BcatService(BcatServicePermissionLevel.Manager)),
+                BcatPortIndex.User    => AcceptImpl(server, new BcatService(BcatServicePermissionLevel.User)),
+                BcatPortIndex.System  => AcceptImpl(server, new BcatService(BcatServicePermissionLevel.System)),
+                _                     => throw new ArgumentOutOfRangeException(nameof(portIndex)),
+            };
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator.cs

@@ -0,0 +1,82 @@
+using LibHac.Common;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.Sf;
+using System;
+using System.Threading;
+using ApplicationId = Ryujinx.Horizon.Sdk.Ncm.ApplicationId;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class ServiceCreator : IServiceCreator, IDisposable
+    {
+        private SharedRef<LibHac.Bcat.Impl.Ipc.IServiceCreator> _libHacService;
+
+        private int _disposalState;
+
+        public ServiceCreator(string serviceName)
+        {
+            HorizonStatic.Options.BcatClient.Sm.GetService(ref _libHacService, serviceName).ThrowIfFailure();
+        }
+
+        [CmifCommand(0)]
+        public Result CreateBcatService(out IBcatService bcatService, [ClientProcessId] ulong pid)
+        {
+            // TODO: Call arp:r GetApplicationLaunchProperty with the pid to get the TitleId.
+            //       Add an instance of nn::bcat::detail::service::core::PassphraseManager.
+            //       Add an instance of nn::bcat::detail::service::ServiceMemoryManager.
+            //       Add an instance of nn::bcat::detail::service::core::TaskManager who loads "bcat-sys:/" system save data and opens "dc/task.bin". 
+            //       If the file don't exist, create a new one (with a size of 0x800 bytes) and write 2 empty structs with a size of 0x400 bytes.
+
+            bcatService = new BcatService(Bcat.Types.BcatServicePermissionLevel.User);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result CreateDeliveryCacheStorageService(out IDeliveryCacheStorageService service, [ClientProcessId] ulong pid)
+        {
+            using var libHacService = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>();
+
+            var resultCode = _libHacService.Get.CreateDeliveryCacheStorageService(ref libHacService.Ref, pid);
+
+            if (resultCode.IsSuccess())
+            {
+                service = new DeliveryCacheStorageService(ref libHacService.Ref);
+            }
+            else
+            {
+                service = null;
+            }
+
+            return resultCode.ToHorizonResult();
+        }
+
+        [CmifCommand(2)]
+        public Result CreateDeliveryCacheStorageServiceWithApplicationId(out IDeliveryCacheStorageService service, ApplicationId applicationId)
+        {
+            using var libHacService = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>();
+
+            var resultCode = _libHacService.Get.CreateDeliveryCacheStorageServiceWithApplicationId(ref libHacService.Ref, new LibHac.ApplicationId(applicationId.Id));
+
+            if (resultCode.IsSuccess())
+            {
+                service = new DeliveryCacheStorageService(ref libHacService.Ref);
+            }
+            else
+            {
+                service = null;
+            }
+
+            return resultCode.ToHorizonResult();
+        }
+
+        public void Dispose()
+        {
+            if (Interlocked.Exchange(ref _disposalState, 1) == 0)
+            {
+                _libHacService.Destroy();
+            }
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/BcatService.cs

@@ -0,0 +1,25 @@
+using Ryujinx.Horizon.Bcat.Types;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class BcatService : IBcatService
+    {
+        private readonly BcatServicePermissionLevel _permissionLevel;
+
+        public BcatService(BcatServicePermissionLevel permissionLevel)
+        {
+            _permissionLevel = permissionLevel;
+        }
+
+        [CmifCommand(10100)]
+        public Result RequestSyncDeliveryCache(out IDeliveryCacheProgressService deliveryCacheProgressService)
+        {
+            deliveryCacheProgressService = new DeliveryCacheProgressService();
+
+            return Result.Success;
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/DeliveryCacheDirectoryService.cs

@@ -0,0 +1,48 @@
+using LibHac.Bcat;
+using LibHac.Common;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+using System.Threading;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class DeliveryCacheDirectoryService : IDeliveryCacheDirectoryService, IDisposable
+    {
+        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService> _libHacService;
+        private int _disposalState;
+
+        public DeliveryCacheDirectoryService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService> libHacService)
+        {
+            _libHacService = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService>.CreateMove(ref libHacService);
+        }
+
+        [CmifCommand(0)]
+        public Result Open(DirectoryName directoryName)
+        {
+            return _libHacService.Get.Open(ref directoryName).ToHorizonResult();
+        }
+
+        [CmifCommand(1)]
+        public Result Read(out int entriesRead, [Buffer(Sdk.Sf.Hipc.HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DeliveryCacheDirectoryEntry> entriesBuffer)
+        {
+            return _libHacService.Get.Read(out entriesRead, entriesBuffer).ToHorizonResult();
+        }
+
+        [CmifCommand(2)]
+        public Result GetCount(out int count)
+        {
+            return _libHacService.Get.GetCount(out count).ToHorizonResult();
+        }
+
+        public void Dispose()
+        {
+            if (Interlocked.Exchange(ref _disposalState, 1) == 0)
+            {
+                _libHacService.Destroy();
+            }
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/DeliveryCacheFileService.cs

@@ -0,0 +1,54 @@
+using LibHac.Bcat;
+using LibHac.Common;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+using System.Threading;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class DeliveryCacheFileService : IDeliveryCacheFileService, IDisposable
+    {
+        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService> _libHacService;
+        private int _disposalState;
+
+        public DeliveryCacheFileService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService> libHacService)
+        {
+            _libHacService = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService>.CreateMove(ref libHacService);
+        }
+
+        [CmifCommand(0)]
+        public Result Open(DirectoryName directoryName, FileName fileName)
+        {
+            return _libHacService.Get.Open(ref directoryName, ref fileName).ToHorizonResult();
+        }
+
+        [CmifCommand(1)]
+        public Result Read(long offset, out long bytesRead, [Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<byte> data)
+        {
+            return _libHacService.Get.Read(out bytesRead, offset, data).ToHorizonResult(); 
+        }
+
+        [CmifCommand(2)]
+        public Result GetSize(out long size)
+        {
+            return _libHacService.Get.GetSize(out size).ToHorizonResult();
+        }
+
+        [CmifCommand(3)]
+        public Result GetDigest(out Digest digest)
+        {
+            return _libHacService.Get.GetDigest(out digest).ToHorizonResult();
+        }
+
+        public void Dispose()
+        {
+            if (Interlocked.Exchange(ref _disposalState, 1) == 0)
+            {
+                _libHacService.Destroy();
+            }
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/DeliveryCacheProgressService.cs

@@ -0,0 +1,58 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Horizon.Bcat.Ipc.Types;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.OsTypes;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+using System.Threading;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class DeliveryCacheProgressService : IDeliveryCacheProgressService, IDisposable
+    {
+        private int _handle;
+        private SystemEventType _systemEvent;
+        private int _disposalState;
+
+        [CmifCommand(0)]
+        public Result GetEvent([CopyHandle] out int handle)
+        {
+            if (_handle == 0)
+            {
+                Os.CreateSystemEvent(out _systemEvent, EventClearMode.ManualClear, true).AbortOnFailure();
+
+                _handle = Os.GetReadableHandleOfSystemEvent(ref _systemEvent);
+            }
+
+            handle = _handle;
+
+            Logger.Stub?.PrintStub(LogClass.ServiceBcat);
+
+            return Result.Success;
+        }
+
+        [CmifCommand(1)]
+        public Result GetImpl([Buffer(HipcBufferFlags.Out | HipcBufferFlags.Pointer, 0x200)] out DeliveryCacheProgressImpl deliveryCacheProgressImpl)
+        {
+            deliveryCacheProgressImpl = new DeliveryCacheProgressImpl
+            {
+                State = DeliveryCacheProgressImpl.Status.Done,
+                Result = 0
+            };
+
+            Logger.Stub?.PrintStub(LogClass.ServiceBcat);
+
+            return Result.Success;
+        }
+
+        public void Dispose()
+        {
+            if (_handle != 0 && Interlocked.Exchange(ref _disposalState, 1) == 0)
+            {
+                Os.DestroySystemEvent(ref _systemEvent);
+            }
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/DeliveryCacheStorageService.cs

@@ -0,0 +1,74 @@
+using LibHac.Bcat;
+using LibHac.Common;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Bcat;
+using Ryujinx.Horizon.Sdk.Sf;
+using Ryujinx.Horizon.Sdk.Sf.Hipc;
+using System;
+using System.Threading;
+
+namespace Ryujinx.Horizon.Bcat.Ipc
+{
+    partial class DeliveryCacheStorageService : IDeliveryCacheStorageService, IDisposable
+    {
+        private SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> _libHacService;
+        private int _disposalState;
+
+        public DeliveryCacheStorageService(ref SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService> libHacService)
+        {
+            _libHacService = SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheStorageService>.CreateMove(ref libHacService);
+        }
+
+        [CmifCommand(0)]
+        public Result CreateFileService(out IDeliveryCacheFileService service)
+        {
+            using var libHacService = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheFileService>();
+
+            var resultCode = _libHacService.Get.CreateFileService(ref libHacService.Ref);
+
+            if (resultCode.IsSuccess())
+            {
+                service = new DeliveryCacheFileService(ref libHacService.Ref);
+            }
+            else
+            {
+                service = null;
+            }
+
+            return resultCode.ToHorizonResult();
+        }
+
+        [CmifCommand(1)]
+        public Result CreateDirectoryService(out IDeliveryCacheDirectoryService service)
+        {
+            using var libHacService = new SharedRef<LibHac.Bcat.Impl.Ipc.IDeliveryCacheDirectoryService>();
+
+            var resultCode = _libHacService.Get.CreateDirectoryService(ref libHacService.Ref);
+
+            if (resultCode.IsSuccess())
+            {
+                service = new DeliveryCacheDirectoryService(ref libHacService.Ref);
+            }
+            else
+            {
+                service = null;
+            }
+
+            return resultCode.ToHorizonResult();
+        }
+
+        [CmifCommand(10)]
+        public Result EnumerateDeliveryCacheDirectory(out int count, [Buffer(HipcBufferFlags.Out | HipcBufferFlags.MapAlias)] Span<DirectoryName> directoryNames)
+        {
+            return _libHacService.Get.EnumerateDeliveryCacheDirectory(out count, directoryNames).ToHorizonResult();
+        }
+
+        public void Dispose()
+        {
+            if (Interlocked.Exchange(ref _disposalState, 1) == 0)
+            {
+                _libHacService.Destroy();
+            }
+        }
+    }
+}

src/Ryujinx.Horizon/Bcat/Ipc/ServiceCreator/Types/DeliveryCacheProgressImpl.cs

@@ -1,6 +1,6 @@
 using System.Runtime.InteropServices;
 
-namespace Ryujinx.HLE.HOS.Services.Bcat.ServiceCreator.Types
+namespace Ryujinx.Horizon.Bcat.Ipc.Types
 {
     [StructLayout(LayoutKind.Sequential, Size = 0x200)]
     public struct DeliveryCacheProgressImpl

src/Ryujinx.Horizon/Bcat/Types/BcatPortIndex.cs

@@ -0,0 +1,10 @@
+namespace Ryujinx.Horizon.Bcat.Types
+{
+    enum BcatPortIndex
+    {
+        Admin,
+        Manager,
+        User,
+        System
+    }
+}

src/Ryujinx.Horizon/Bcat/Types/BcatServicePermissionLevel.cs

@@ -0,0 +1,10 @@
+namespace Ryujinx.Horizon.Bcat.Types
+{
+    enum BcatServicePermissionLevel
+    {
+        Admin   = -1,
+        User    = 1,
+        System  = 2,
+        Manager = 6
+    }
+}

src/Ryujinx.Horizon/HorizonOptions.cs

@@ -1,3 +1,5 @@
+using LibHac;
+
 namespace Ryujinx.Horizon
 {
     public struct HorizonOptions
@@ -5,10 +7,13 @@ namespace Ryujinx.Horizon
         public bool IgnoreMissingServices    { get; }
         public bool ThrowOnInvalidCommandIds { get; }
 
-        public HorizonOptions(bool ignoreMissingServices)
+        public HorizonClient BcatClient { get; }
+
+        public HorizonOptions(bool ignoreMissingServices, HorizonClient bcatClient)
         {
             IgnoreMissingServices    = ignoreMissingServices;
             ThrowOnInvalidCommandIds = true;
+            BcatClient               = bcatClient;
         }
     }
 }

src/Ryujinx.Horizon/LibHacResultExtensions.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Horizon.Common;
+
+namespace Ryujinx.Horizon
+{
+    internal static class LibHacResultExtensions
+    {
+        public static Result ToHorizonResult(this LibHac.Result result)
+        {
+            return new Result((int)result.Module, (int)result.Description);
+        }
+    }
+}

src/Ryujinx.Horizon/Prepo/PrepoIpcServer.cs

@@ -9,12 +9,12 @@ namespace Ryujinx.Horizon.Prepo
         private const int PrepoMaxSessionsCount      = 12;
         private const int PrepoTotalMaxSessionsCount = PrepoMaxSessionsCount * 6;
 
-        private const int PointerBufferSize = 0x3800;
+        private const int PointerBufferSize = 0x80;
         private const int MaxDomains        = 64;
         private const int MaxDomainObjects  = 16;
         private const int MaxPortsCount     = 6;
 
-        private static readonly ManagerOptions _logManagerOptions = new(PointerBufferSize, MaxDomains, MaxDomainObjects, false);
+        private static readonly ManagerOptions _prepoManagerOptions = new(PointerBufferSize, MaxDomains, MaxDomainObjects, false);
 
         private SmApi _sm;
         private PrepoServerManager _serverManager;
@@ -26,7 +26,7 @@ namespace Ryujinx.Horizon.Prepo
             _sm = new SmApi();
             _sm.Initialize().AbortOnFailure();
 
-            _serverManager = new PrepoServerManager(allocator, _sm, MaxPortsCount, _logManagerOptions, PrepoTotalMaxSessionsCount);
+            _serverManager = new PrepoServerManager(allocator, _sm, MaxPortsCount, _prepoManagerOptions, PrepoTotalMaxSessionsCount);
 
             _serverManager.RegisterServer((int)PrepoPortIndex.Admin,   ServiceName.Encode("prepo:a"),  PrepoMaxSessionsCount); // 1.0.0-5.1.0
             _serverManager.RegisterServer((int)PrepoPortIndex.Admin2,  ServiceName.Encode("prepo:a2"), PrepoMaxSessionsCount); // 6.0.0+

src/Ryujinx.Horizon/Sdk/Bcat/IBcatService.cs

@@ -0,0 +1,10 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IBcatService : IServiceObject
+    {
+        Result RequestSyncDeliveryCache(out IDeliveryCacheProgressService deliveryCacheProgressService);
+    }
+}

src/Ryujinx.Horizon/Sdk/Bcat/IDeliveryCacheDirectoryService.cs

@@ -0,0 +1,14 @@
+using LibHac.Bcat;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IDeliveryCacheDirectoryService : IServiceObject
+    {
+        Result GetCount(out int count);
+        Result Open(DirectoryName directoryName);
+        Result Read(out int entriesRead, Span<DeliveryCacheDirectoryEntry> entriesBuffer);
+    }
+}

src/Ryujinx.Horizon/Sdk/Bcat/IDeliveryCacheFileService.cs

@@ -0,0 +1,15 @@
+using LibHac.Bcat;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IDeliveryCacheFileService : IServiceObject
+    {
+        Result GetDigest(out Digest digest);
+        Result GetSize(out long size);
+        Result Open(DirectoryName directoryName, FileName fileName);
+        Result Read(long offset, out long bytesRead, Span<byte> data);
+    }
+}

src/Ryujinx.Horizon/Sdk/Bcat/IDeliveryCacheProgressService.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Horizon.Bcat.Ipc.Types;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IDeliveryCacheProgressService : IServiceObject
+    {
+        Result GetEvent(out int handle);
+        Result GetImpl(out DeliveryCacheProgressImpl deliveryCacheProgressImpl);
+    }
+}

src/Ryujinx.Horizon/Sdk/Bcat/IDeliveryCacheStorageService.cs

@@ -0,0 +1,14 @@
+using LibHac.Bcat;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IDeliveryCacheStorageService : IServiceObject
+    {
+        Result CreateDirectoryService(out IDeliveryCacheDirectoryService service);
+        Result CreateFileService(out IDeliveryCacheFileService service);
+        Result EnumerateDeliveryCacheDirectory(out int count, Span<DirectoryName> directoryNames);
+    }
+}

src/Ryujinx.Horizon/Sdk/Bcat/IServiceCreator.cs

@@ -0,0 +1,12 @@
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+
+namespace Ryujinx.Horizon.Sdk.Bcat
+{
+    internal interface IServiceCreator : IServiceObject
+    {
+        Result CreateBcatService(out IBcatService service, ulong pid);
+        Result CreateDeliveryCacheStorageService(out IDeliveryCacheStorageService service, ulong pid);
+        Result CreateDeliveryCacheStorageServiceWithApplicationId(out IDeliveryCacheStorageService service, Ncm.ApplicationId applicationId);
+    }
+}

src/Ryujinx.Horizon/ServiceTable.cs

@@ -1,3 +1,4 @@
+using Ryujinx.Horizon.Bcat;
 using Ryujinx.Horizon.LogManager;
 using Ryujinx.Horizon.Prepo;
 using System.Collections.Generic;
@@ -23,6 +24,7 @@ namespace Ryujinx.Horizon
 
             RegisterService<LmMain>();
             RegisterService<PrepoMain>();
+            RegisterService<BcatMain>();
 
             _totalServices = entries.Count;