ui: Fixes disposing on GTK/Avalonia and Firmware Messages on Avalonia (#3885)

* ui: Only wait on _exitEvent when MainLoop is active under GTK

This fixes a dispose issue under Horizon/GTK, we don't check if the ApplicationClient is null so it throw NCE. We don't check if the main loop is active and waiting an event which is set in the main loop... So that could lead to a freeze.

Everything works fine in GTK now.

Related issue: https://github.com/Ryujinx/Ryujinx/issues/3873

As a side note, same kind of issue appear in Avalonia UI too. Firmware's popup doesn't show anything and the emulator just freeze.

* TSRBerry's change

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

* Fix Avalonia crashing/freezing

* Add Avalonia OpenGL fixes

* Fix firmware popup on windows

* Fixes everything

* Add _initialized bool to VulkanRenderer and OpenGL Window

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

Ryujinx.Ava/App.axaml.cs

@@ -21,6 +21,8 @@ namespace Ryujinx.Ava
     {
         public override void Initialize()
         {
+            Name = $"Ryujinx {Program.Version}";
+
             AvaloniaXamlLoader.Load(this);
         }
 

Ryujinx.Ava/AppHost.cs

@@ -60,7 +60,7 @@ namespace Ryujinx.Ava
 
         private const float VolumeDelta = 0.05f;
 
-        private static readonly Cursor InvisibleCursor = new Cursor(StandardCursorType.None);        
+        private static readonly Cursor InvisibleCursor = new Cursor(StandardCursorType.None);
 
         private readonly long _ticksPerFrame;
         private readonly Stopwatch _chrono;
@@ -349,7 +349,10 @@ namespace Ryujinx.Ava
 
             _isActive = false;
 
-            _renderingThread.Join();
+            if (_renderingThread.IsAlive)
+            {
+                _renderingThread.Join();
+            }
 
             DisplaySleep.Restore();
 
@@ -378,7 +381,7 @@ namespace Ryujinx.Ava
 
             _gpuCancellationTokenSource.Cancel();
             _gpuCancellationTokenSource.Dispose();
-            
+
             _chrono.Stop();
         }
 
@@ -393,7 +396,7 @@ namespace Ryujinx.Ava
             Renderer?.MakeCurrent();
 
             Device.DisposeGpu();
-            
+
             Renderer?.MakeCurrent(null);
         }
 
@@ -417,7 +420,6 @@ namespace Ryujinx.Ava
         public async Task<bool> LoadGuestApplication()
         {
             InitializeSwitchInstance();
-
             MainWindow.UpdateGraphicsConfig();
 
             SystemVersion firmwareVersion = ContentManager.GetCurrentFirmwareVersion();
@@ -428,17 +430,16 @@ namespace Ryujinx.Ava
                 {
                     if (userError == UserError.NoFirmware)
                     {
-                        string message = string.Format(LocaleManager.Instance["DialogFirmwareInstallEmbeddedMessage"],
-                            firmwareVersion.VersionString);
-
                         UserResult result = await ContentDialogHelper.CreateConfirmationDialog(
-                            LocaleManager.Instance["DialogFirmwareNoFirmwareInstalledMessage"], message,
-                            LocaleManager.Instance["InputDialogYes"], LocaleManager.Instance["InputDialogNo"], "");
+                            LocaleManager.Instance["DialogFirmwareNoFirmwareInstalledMessage"],
+                            string.Format(LocaleManager.Instance["DialogFirmwareInstallEmbeddedMessage"], firmwareVersion.VersionString),
+                            LocaleManager.Instance["InputDialogYes"],
+                            LocaleManager.Instance["InputDialogNo"],
+                            "");
 
                         if (result != UserResult.Yes)
                         {
-                            Dispatcher.UIThread.Post(async () => await
-                                UserErrorDialog.ShowUserErrorDialog(userError, _parent));
+                            await UserErrorDialog.ShowUserErrorDialog(userError, _parent);
                             Device.Dispose();
 
                             return false;
@@ -447,8 +448,7 @@ namespace Ryujinx.Ava
 
                     if (!SetupValidator.TryFixStartApplication(ContentManager, ApplicationPath, userError, out _))
                     {
-                        Dispatcher.UIThread.Post(async () => await
-                            UserErrorDialog.ShowUserErrorDialog(userError, _parent));
+                        await UserErrorDialog.ShowUserErrorDialog(userError, _parent);
                         Device.Dispose();
 
                         return false;
@@ -461,11 +461,9 @@ namespace Ryujinx.Ava
 
                         _parent.RefreshFirmwareStatus();
 
-                        string message = string.Format(LocaleManager.Instance["DialogFirmwareInstallEmbeddedSuccessMessage"], firmwareVersion.VersionString);
-
                         await ContentDialogHelper.CreateInfoDialog(
                             string.Format(LocaleManager.Instance["DialogFirmwareInstalledMessage"], firmwareVersion.VersionString),
-                            message,
+                            string.Format(LocaleManager.Instance["DialogFirmwareInstallEmbeddedSuccessMessage"], firmwareVersion.VersionString),
                             LocaleManager.Instance["InputDialogOk"],
                             "",
                             LocaleManager.Instance["RyujinxInfo"]);
@@ -473,9 +471,7 @@ namespace Ryujinx.Ava
                 }
                 else
                 {
-                    Dispatcher.UIThread.Post(async () => await
-                        UserErrorDialog.ShowUserErrorDialog(userError, _parent));
-
+                    await UserErrorDialog.ShowUserErrorDialog(userError, _parent);
                     Device.Dispose();
 
                     return false;
@@ -514,7 +510,7 @@ namespace Ryujinx.Ava
             }
             else if (File.Exists(ApplicationPath))
             {
-                switch (System.IO.Path.GetExtension(ApplicationPath).ToLowerInvariant())
+                switch (Path.GetExtension(ApplicationPath).ToLowerInvariant())
                 {
                     case ".xci":
                         {
@@ -602,7 +598,7 @@ namespace Ryujinx.Ava
             if (Renderer.IsVulkan)
             {
                 string preferredGpu = ConfigurationState.Instance.Graphics.PreferredGpu.Value;
-                
+
                 renderer = new VulkanRenderer(Renderer.CreateVulkanSurface, VulkanHelper.GetRequiredInstanceExtensions, preferredGpu);
             }
             else

Ryujinx.Ava/Ui/Applet/AvaHostUiHandler.cs

@@ -57,14 +57,14 @@ namespace Ryujinx.Ava.Ui.Applet
 
                     bool opened = false;
 
-                    UserResult response = await ContentDialogHelper.ShowDeferredContentDialog(_parent, 
-                       title, 
-                       message, 
-                       "", 
-                       LocaleManager.Instance["DialogOpenSettingsWindowLabel"], 
-                       "", 
-                       LocaleManager.Instance["SettingsButtonClose"], 
-                       (int)Symbol.Important, 
+                    UserResult response = await ContentDialogHelper.ShowDeferredContentDialog(_parent,
+                       title,
+                       message,
+                       "",
+                       LocaleManager.Instance["DialogOpenSettingsWindowLabel"],
+                       "",
+                       LocaleManager.Instance["SettingsButtonClose"],
+                       (int)Symbol.Important,
                        deferEvent,
                        async (window) =>
                        {
@@ -168,7 +168,7 @@ namespace Ryujinx.Ava.Ui.Applet
 
                     object response = await msgDialog.Run();
 
-                    if (response != null && buttons.Length > 1 && (int)response != buttons.Length - 1)
+                    if (response != null && buttons != null && buttons.Length > 1 && (int)response != buttons.Length - 1)
                     {
                         showDetails = true;
                     }

Ryujinx.Ava/Ui/Controls/OpenGLEmbeddedWindow.cs

@@ -49,7 +49,7 @@ namespace Ryujinx.Ava.Ui.Controls
             {
                 throw new PlatformNotSupportedException();
             }
-            
+
             var flags = OpenGLContextFlags.Compat;
             if (_graphicsDebugLevel != GraphicsDebugLevel.None)
             {
@@ -69,12 +69,12 @@ namespace Ryujinx.Ava.Ui.Controls
 
         public void MakeCurrent()
         {
-            Context.MakeCurrent(_window);
+            Context?.MakeCurrent(_window);
         }
 
         public void MakeCurrent(NativeWindowBase window)
         {
-            Context.MakeCurrent(window);
+            Context?.MakeCurrent(window);
         }
 
         public void SwapBuffers()

Ryujinx.Ava/Ui/Windows/MainWindow.axaml.cs

@@ -251,24 +251,29 @@ namespace Ryujinx.Ava.Ui.Windows
 
             AppHost = new AppHost(RendererControl, InputManager, path, VirtualFileSystem, ContentManager, AccountManager, _userChannelPersistence, this);
 
-            if (!AppHost.LoadGuestApplication().Result)
+            Dispatcher.UIThread.Post(async () =>
             {
-                AppHost.DisposeContext();
+                if (!await AppHost.LoadGuestApplication())
+                {
+                    AppHost.DisposeContext();
+                    AppHost = null;
 
-                return;
-            }
+                    return;
+                }
 
-            ViewModel.LoadHeading = string.IsNullOrWhiteSpace(titleName) ? string.Format(LocaleManager.Instance["LoadingHeading"], AppHost.Device.Application.TitleName) : titleName;
-            ViewModel.TitleName = string.IsNullOrWhiteSpace(titleName) ? AppHost.Device.Application.TitleName : titleName;
+                ViewModel.LoadHeading = string.IsNullOrWhiteSpace(titleName) ? string.Format(LocaleManager.Instance["LoadingHeading"], AppHost.Device.Application.TitleName) : titleName;
+                ViewModel.TitleName   = string.IsNullOrWhiteSpace(titleName) ? AppHost.Device.Application.TitleName : titleName;
 
-            SwitchToGameControl(startFullscreen);
+                SwitchToGameControl(startFullscreen);
 
-            _currentEmulatedGamePath = path;
-            Thread gameThread = new Thread(InitializeGame)
-            {
-                Name = "GUI.WindowThread"
-            };
-            gameThread.Start();
+                _currentEmulatedGamePath = path;
+
+                Thread gameThread = new(InitializeGame)
+                {
+                    Name = "GUI.WindowThread"
+                };
+                gameThread.Start();
+            });
         }
 
         private void InitializeGame()
@@ -546,10 +551,12 @@ namespace Ryujinx.Ava.Ui.Windows
         {
             ApplicationLibrary.LoadAndSaveMetaData(titleId, appMetadata =>
             {
-                DateTime lastPlayedDateTime = DateTime.Parse(appMetadata.LastPlayed);
-                double sessionTimePlayed = DateTime.UtcNow.Subtract(lastPlayedDateTime).TotalSeconds;
+                if (DateTime.TryParse(appMetadata.LastPlayed, out DateTime lastPlayedDateTime))
+                {
+                    double sessionTimePlayed = DateTime.UtcNow.Subtract(lastPlayedDateTime).TotalSeconds;
 
-                appMetadata.TimePlayed += Math.Round(sessionTimePlayed, MidpointRounding.AwayFromZero);
+                    appMetadata.TimePlayed += Math.Round(sessionTimePlayed, MidpointRounding.AwayFromZero);
+                }
             });
         }
 

Ryujinx.Graphics.GAL/BufferAssignment.cs

@@ -0,0 +1,14 @@
+namespace Ryujinx.Graphics.GAL
+{
+    public struct BufferAssignment
+    {
+        public readonly int Binding;
+        public readonly BufferRange Range;
+
+        public BufferAssignment(int binding, BufferRange range)
+        {
+            Binding = binding;
+            Range = range;
+        }
+    }
+}

Ryujinx.Graphics.GAL/IPipeline.cs

@@ -86,12 +86,12 @@ namespace Ryujinx.Graphics.GAL
 
         void SetStencilTest(StencilTestDescriptor stencilTest);
 
-        void SetStorageBuffers(int first, ReadOnlySpan<BufferRange> buffers);
+        void SetStorageBuffers(ReadOnlySpan<BufferAssignment> buffers);
 
         void SetTextureAndSampler(ShaderStage stage, int binding, ITexture texture, ISampler sampler);
 
         void SetTransformFeedbackBuffers(ReadOnlySpan<BufferRange> buffers);
-        void SetUniformBuffers(int first, ReadOnlySpan<BufferRange> buffers);
+        void SetUniformBuffers(ReadOnlySpan<BufferAssignment> buffers);
 
         void SetUserClipDistance(int index, bool enableClip);
 

Ryujinx.Graphics.GAL/Multithreading/BufferMap.cs

@@ -142,6 +142,30 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             return ranges;
         }
 
+        internal Span<BufferAssignment> MapBufferRanges(Span<BufferAssignment> ranges)
+        {
+            // Rewrite the buffer ranges to point to the mapped handles.
+
+            lock (_bufferMap)
+            {
+                for (int i = 0; i < ranges.Length; i++)
+                {
+                    ref BufferAssignment assignment = ref ranges[i];
+                    BufferRange range = assignment.Range;
+                    BufferHandle result;
+
+                    if (!_bufferMap.TryGetValue(range.Handle, out result))
+                    {
+                        result = BufferHandle.Null;
+                    }
+
+                    assignment = new BufferAssignment(ranges[i].Binding, new BufferRange(result, range.Offset, range.Size));
+                }
+            }
+
+            return ranges;
+        }
+
         internal Span<VertexBufferDescriptor> MapBufferRanges(Span<VertexBufferDescriptor> ranges)
         {
             // Rewrite the buffer ranges to point to the mapped handles.

Ryujinx.Graphics.GAL/Multithreading/Commands/SetStorageBuffersCommand.cs

@@ -6,19 +6,17 @@ namespace Ryujinx.Graphics.GAL.Multithreading.Commands
     struct SetStorageBuffersCommand : IGALCommand
     {
         public CommandType CommandType => CommandType.SetStorageBuffers;
-        private int _first;
-        private SpanRef<BufferRange> _buffers;
+        private SpanRef<BufferAssignment> _buffers;
 
-        public void Set(int first, SpanRef<BufferRange> buffers)
+        public void Set(SpanRef<BufferAssignment> buffers)
         {
-            _first = first;
             _buffers = buffers;
         }
 
         public static void Run(ref SetStorageBuffersCommand command, ThreadedRenderer threaded, IRenderer renderer)
         {
-            Span<BufferRange> buffers = command._buffers.Get(threaded);
-            renderer.Pipeline.SetStorageBuffers(command._first, threaded.Buffers.MapBufferRanges(buffers));
+            Span<BufferAssignment> buffers = command._buffers.Get(threaded);
+            renderer.Pipeline.SetStorageBuffers(threaded.Buffers.MapBufferRanges(buffers));
             command._buffers.Dispose(threaded);
         }
     }

Ryujinx.Graphics.GAL/Multithreading/Commands/SetUniformBuffersCommand.cs

@@ -6,19 +6,17 @@ namespace Ryujinx.Graphics.GAL.Multithreading.Commands
     struct SetUniformBuffersCommand : IGALCommand
     {
         public CommandType CommandType => CommandType.SetUniformBuffers;
-        private int _first;
-        private SpanRef<BufferRange> _buffers;
+        private SpanRef<BufferAssignment> _buffers;
 
-        public void Set(int first, SpanRef<BufferRange> buffers)
+        public void Set(SpanRef<BufferAssignment> buffers)
         {
-            _first = first;
             _buffers = buffers;
         }
 
         public static void Run(ref SetUniformBuffersCommand command, ThreadedRenderer threaded, IRenderer renderer)
         {
-            Span<BufferRange> buffers = command._buffers.Get(threaded);
-            renderer.Pipeline.SetUniformBuffers(command._first, threaded.Buffers.MapBufferRanges(buffers));
+            Span<BufferAssignment> buffers = command._buffers.Get(threaded);
+            renderer.Pipeline.SetUniformBuffers(threaded.Buffers.MapBufferRanges(buffers));
             command._buffers.Dispose(threaded);
         }
     }

Ryujinx.Graphics.GAL/Multithreading/ThreadedPipeline.cs

@@ -275,9 +275,9 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             _renderer.QueueCommand();
         }
 
-        public void SetStorageBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetStorageBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            _renderer.New<SetStorageBuffersCommand>().Set(first, _renderer.CopySpan(buffers));
+            _renderer.New<SetStorageBuffersCommand>().Set(_renderer.CopySpan(buffers));
             _renderer.QueueCommand();
         }
 
@@ -293,9 +293,9 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             _renderer.QueueCommand();
         }
 
-        public void SetUniformBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetUniformBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            _renderer.New<SetUniformBuffersCommand>().Set(first, _renderer.CopySpan(buffers));
+            _renderer.New<SetUniformBuffersCommand>().Set(_renderer.CopySpan(buffers));
             _renderer.QueueCommand();
         }
 

Ryujinx.Graphics.GAL/Multithreading/ThreadedRenderer.cs

@@ -422,7 +422,11 @@ namespace Ryujinx.Graphics.GAL.Multithreading
 
             // Stop the GPU thread.
             _disposed = true;
-            _gpuThread.Join();
+
+            if (_gpuThread != null && _gpuThread.IsAlive)
+            {
+                _gpuThread.Join();
+            }
 
             // Dispose the renderer.
             _baseRenderer.Dispose();
@@ -435,4 +439,4 @@ namespace Ryujinx.Graphics.GAL.Multithreading
             Sync.Dispose();
         }
     }
-}
+}

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

@@ -51,16 +51,35 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
             /// </summary>
             public uint EntryCount;
 
+            /// <summary>
+            /// Get the entries for the command buffer from memory.
+            /// </summary>
+            /// <param name="memoryManager">The memory manager used to fetch the data</param>
+            /// <param name="flush">If true, flushes potential GPU written data before reading the command buffer</param>
+            /// <returns>The fetched data</returns>
+            private ReadOnlySpan<int> GetWords(MemoryManager memoryManager, bool flush)
+            {
+                return MemoryMarshal.Cast<byte, int>(memoryManager.GetSpan(EntryAddress, (int)EntryCount * 4, flush));
+            }
+
+            /// <summary>
+            /// Prefetch the command buffer.
+            /// </summary>
+            /// <param name="memoryManager">The memory manager used to fetch the data</param>
+            public void Prefetch(MemoryManager memoryManager)
+            {
+                Words = GetWords(memoryManager, true).ToArray();
+            }
+
             /// <summary>
             /// Fetch the command buffer.
             /// </summary>
+            /// <param name="memoryManager">The memory manager used to fetch the data</param>
             /// <param name="flush">If true, flushes potential GPU written data before reading the command buffer</param>
-            public void Fetch(MemoryManager memoryManager, bool flush = true)
+            /// <returns>The command buffer words</returns>
+            public ReadOnlySpan<int> Fetch(MemoryManager memoryManager, bool flush)
             {
-                if (Words == null)
-                {
-                    Words = MemoryMarshal.Cast<byte, int>(memoryManager.GetSpan(EntryAddress, (int)EntryCount * 4, flush)).ToArray();
-                }
+                return Words ?? GetWords(memoryManager, flush);
             }
         }
 
@@ -158,7 +177,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
 
                 if (beforeBarrier && commandBuffer.Type == CommandBufferType.Prefetch)
                 {
-                    commandBuffer.Fetch(processor.MemoryManager);
+                    commandBuffer.Prefetch(processor.MemoryManager);
                 }
 
                 if (commandBuffer.Type == CommandBufferType.NoPrefetch)
@@ -199,7 +218,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
                 }
 
                 _currentCommandBuffer = entry;
-                _currentCommandBuffer.Fetch(entry.Processor.MemoryManager, flushCommandBuffer);
+                ReadOnlySpan<int> words = entry.Fetch(entry.Processor.MemoryManager, flushCommandBuffer);
 
                 // If we are changing the current channel,
                 // we need to force all the host state to be updated.
@@ -209,7 +228,7 @@ namespace Ryujinx.Graphics.Gpu.Engine.GPFifo
                     entry.Processor.ForceAllDirty();
                 }
 
-                entry.Processor.Process(entry.EntryAddress, _currentCommandBuffer.Words);
+                entry.Processor.Process(entry.EntryAddress, words);
             }
 
             _interrupt = false;

Ryujinx.Graphics.Gpu/Memory/BufferManager.cs

@@ -24,7 +24,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
         private readonly VertexBuffer[] _vertexBuffers;
         private readonly BufferBounds[] _transformFeedbackBuffers;
         private readonly List<BufferTextureBinding> _bufferTextures;
-        private readonly BufferRange[] _ranges;
+        private readonly BufferAssignment[] _ranges;
 
         /// <summary>
         /// Holds shader stage buffer state and binding information.
@@ -134,7 +134,7 @@ namespace Ryujinx.Graphics.Gpu.Memory
 
             _bufferTextures = new List<BufferTextureBinding>();
 
-            _ranges = new BufferRange[Constants.TotalGpUniformBuffers * Constants.ShaderStages];
+            _ranges = new BufferAssignment[Constants.TotalGpUniformBuffers * Constants.ShaderStages];
         }
 
 
@@ -618,10 +618,9 @@ namespace Ryujinx.Graphics.Gpu.Memory
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private void BindBuffers(BufferCache bufferCache, BuffersPerStage[] bindings, bool isStorage)
         {
-            int rangesFirst = 0;
             int rangesCount = 0;
 
-            Span<BufferRange> ranges = _ranges;
+            Span<BufferAssignment> ranges = _ranges;
 
             for (ShaderStage stage = ShaderStage.Vertex; stage <= ShaderStage.Fragment; stage++)
             {
@@ -640,25 +639,14 @@ namespace Ryujinx.Graphics.Gpu.Memory
                             ? bufferCache.GetBufferRangeTillEnd(bounds.Address, bounds.Size, isWrite)
                             : bufferCache.GetBufferRange(bounds.Address, bounds.Size);
 
-                        if (rangesCount == 0)
-                        {
-                            rangesFirst = bindingInfo.Binding;
-                        }
-                        else if (bindingInfo.Binding != rangesFirst + rangesCount)
-                        {
-                            SetHostBuffers(ranges, rangesFirst, rangesCount, isStorage);
-                            rangesFirst = bindingInfo.Binding;
-                            rangesCount = 0;
-                        }
-
-                        ranges[rangesCount++] = range;
+                        ranges[rangesCount++] = new BufferAssignment(bindingInfo.Binding, range);
                     }
                 }
             }
 
             if (rangesCount != 0)
             {
-                SetHostBuffers(ranges, rangesFirst, rangesCount, isStorage);
+                SetHostBuffers(ranges, rangesCount, isStorage);
             }
         }
 
@@ -671,10 +659,9 @@ namespace Ryujinx.Graphics.Gpu.Memory
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         private void BindBuffers(BufferCache bufferCache, BuffersPerStage buffers, bool isStorage)
         {
-            int rangesFirst = 0;
             int rangesCount = 0;
 
-            Span<BufferRange> ranges = _ranges;
+            Span<BufferAssignment> ranges = _ranges;
 
             for (int index = 0; index < buffers.Count; index++)
             {
@@ -689,24 +676,13 @@ namespace Ryujinx.Graphics.Gpu.Memory
                         ? bufferCache.GetBufferRangeTillEnd(bounds.Address, bounds.Size, isWrite)
                         : bufferCache.GetBufferRange(bounds.Address, bounds.Size);
 
-                    if (rangesCount == 0)
-                    {
-                        rangesFirst = bindingInfo.Binding;
-                    }
-                    else if (bindingInfo.Binding != rangesFirst + rangesCount)
-                    {
-                        SetHostBuffers(ranges, rangesFirst, rangesCount, isStorage);
-                        rangesFirst = bindingInfo.Binding;
-                        rangesCount = 0;
-                    }
-
-                    ranges[rangesCount++] = range;
+                    ranges[rangesCount++] = new BufferAssignment(bindingInfo.Binding, range);
                 }
             }
 
             if (rangesCount != 0)
             {
-                SetHostBuffers(ranges, rangesFirst, rangesCount, isStorage);
+                SetHostBuffers(ranges, rangesCount, isStorage);
             }
         }
 
@@ -718,15 +694,15 @@ namespace Ryujinx.Graphics.Gpu.Memory
         /// <param name="count">Number of bindings</param>
         /// <param name="isStorage">Indicates if the buffers are storage or uniform buffers</param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void SetHostBuffers(ReadOnlySpan<BufferRange> ranges, int first, int count, bool isStorage)
+        private void SetHostBuffers(ReadOnlySpan<BufferAssignment> ranges, int count, bool isStorage)
         {
             if (isStorage)
             {
-                _context.Renderer.Pipeline.SetStorageBuffers(first, ranges.Slice(0, count));
+                _context.Renderer.Pipeline.SetStorageBuffers(ranges.Slice(0, count));
             }
             else
             {
-                _context.Renderer.Pipeline.SetUniformBuffers(first, ranges.Slice(0, count));
+                _context.Renderer.Pipeline.SetUniformBuffers(ranges.Slice(0, count));
             }
         }
 

Ryujinx.Graphics.OpenGL/Pipeline.cs

@@ -1296,9 +1296,9 @@ namespace Ryujinx.Graphics.OpenGL
             _stencilFrontMask = stencilTest.FrontMask;
         }
 
-        public void SetStorageBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetStorageBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            SetBuffers(first, buffers, isStorage: true);
+            SetBuffers(buffers, isStorage: true);
         }
 
         public void SetTextureAndSampler(ShaderStage stage, int binding, ITexture texture, ISampler sampler)
@@ -1366,9 +1366,9 @@ namespace Ryujinx.Graphics.OpenGL
             }
         }
 
-        public void SetUniformBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetUniformBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            SetBuffers(first, buffers, isStorage: false);
+            SetBuffers(buffers, isStorage: false);
         }
 
         public void SetUserClipDistance(int index, bool enableClip)
@@ -1460,21 +1460,22 @@ namespace Ryujinx.Graphics.OpenGL
             GL.MemoryBarrier(MemoryBarrierFlags.TextureFetchBarrierBit);
         }
 
-        private void SetBuffers(int first, ReadOnlySpan<BufferRange> buffers, bool isStorage)
+        private void SetBuffers(ReadOnlySpan<BufferAssignment> buffers, bool isStorage)
         {
             BufferRangeTarget target = isStorage ? BufferRangeTarget.ShaderStorageBuffer : BufferRangeTarget.UniformBuffer;
 
             for (int index = 0; index < buffers.Length; index++)
             {
-                BufferRange buffer = buffers[index];
+                BufferAssignment assignment = buffers[index];
+                BufferRange buffer = assignment.Range;
 
                 if (buffer.Handle == BufferHandle.Null)
                 {
-                    GL.BindBufferRange(target, first + index, 0, IntPtr.Zero, 0);
+                    GL.BindBufferRange(target, assignment.Binding, 0, IntPtr.Zero, 0);
                     continue;
                 }
 
-                GL.BindBufferRange(target, first + index, buffer.Handle.ToInt32(), (IntPtr)buffer.Offset, buffer.Size);
+                GL.BindBufferRange(target, assignment.Binding, buffer.Handle.ToInt32(), (IntPtr)buffer.Offset, buffer.Size);
             }
         }
 

Ryujinx.Graphics.OpenGL/Queries/Counters.cs

@@ -54,4 +54,4 @@ namespace Ryujinx.Graphics.OpenGL.Queries
             }
         }
     }
-}
+}

Ryujinx.Graphics.OpenGL/Window.cs

@@ -10,6 +10,8 @@ namespace Ryujinx.Graphics.OpenGL
         private const int TextureCount = 3;
         private readonly OpenGLRenderer _renderer;
 
+        private bool _initialized;
+
         private int _width;
         private int _height;
         private int _copyFramebufferHandle;
@@ -179,6 +181,7 @@ namespace Ryujinx.Graphics.OpenGL
         public void InitializeBackgroundContext(IOpenGLContext baseContext)
         {
             BackgroundContext = new BackgroundContextWorker(baseContext);
+            _initialized = true;
         }
 
         public void CaptureFrame(int x, int y, int width, int height, bool isBgra, bool flipX, bool flipY)
@@ -193,6 +196,11 @@ namespace Ryujinx.Graphics.OpenGL
 
         public void Dispose()
         {
+            if (!_initialized)
+            {
+                return;
+            }
+
             BackgroundContext.Dispose();
 
             if (_copyFramebufferHandle != 0)
@@ -203,4 +211,4 @@ namespace Ryujinx.Graphics.OpenGL
             }
         }
     }
-}
+}

Ryujinx.Graphics.Vulkan/DescriptorSetUpdater.cs

@@ -163,12 +163,13 @@ namespace Ryujinx.Graphics.Vulkan
             SignalDirty(DirtyFlags.Image);
         }
 
-        public void SetStorageBuffers(CommandBuffer commandBuffer, int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetStorageBuffers(CommandBuffer commandBuffer, ReadOnlySpan<BufferAssignment> buffers)
         {
             for (int i = 0; i < buffers.Length; i++)
             {
-                var buffer = buffers[i];
-                int index = first + i;
+                var assignment = buffers[i];
+                var buffer = assignment.Range;
+                int index = assignment.Binding;
 
                 Auto<DisposableBuffer> vkBuffer = _gd.BufferManager.GetBuffer(commandBuffer, buffer.Handle, false);
                 ref Auto<DisposableBuffer> currentVkBuffer = ref _storageBufferRefs[index];
@@ -243,12 +244,13 @@ namespace Ryujinx.Graphics.Vulkan
             SignalDirty(DirtyFlags.Texture);
         }
 
-        public void SetUniformBuffers(CommandBuffer commandBuffer, int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetUniformBuffers(CommandBuffer commandBuffer, ReadOnlySpan<BufferAssignment> buffers)
         {
             for (int i = 0; i < buffers.Length; i++)
             {
-                var buffer = buffers[i];
-                int index = first + i;
+                var assignment = buffers[i];
+                var buffer = assignment.Range;
+                int index = assignment.Binding;
 
                 Auto<DisposableBuffer> vkBuffer = _gd.BufferManager.GetBuffer(commandBuffer, buffer.Handle, false);
                 ref Auto<DisposableBuffer> currentVkBuffer = ref _uniformBufferRefs[index];

Ryujinx.Graphics.Vulkan/HelperShader.cs

@@ -177,7 +177,7 @@ namespace Ryujinx.Graphics.Vulkan
 
             gd.BufferManager.SetData<float>(bufferHandle, 0, region);
 
-            _pipeline.SetUniformBuffers(1, stackalloc[] { new BufferRange(bufferHandle, 0, RegionBufferSize) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, RegionBufferSize)) });
 
             Span<GAL.Viewport> viewports = stackalloc GAL.Viewport[1];
 
@@ -240,7 +240,7 @@ namespace Ryujinx.Graphics.Vulkan
 
             gd.BufferManager.SetData<float>(bufferHandle, 0, clearColor);
 
-            _pipeline.SetUniformBuffers(1, stackalloc[] { new BufferRange(bufferHandle, 0, ClearColorBufferSize) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, ClearColorBufferSize)) });
 
             Span<GAL.Viewport> viewports = stackalloc GAL.Viewport[1];
 
@@ -302,7 +302,7 @@ namespace Ryujinx.Graphics.Vulkan
 
             gd.BufferManager.SetData<float>(bufferHandle, 0, region);
 
-            pipeline.SetUniformBuffers(1, stackalloc[] { new BufferRange(bufferHandle, 0, RegionBufferSize) });
+            pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(1, new BufferRange(bufferHandle, 0, RegionBufferSize)) });
 
             Span<GAL.Viewport> viewports = stackalloc GAL.Viewport[1];
 
@@ -380,7 +380,7 @@ namespace Ryujinx.Graphics.Vulkan
 
                 _pipeline.SetCommandBuffer(cbs);
 
-                _pipeline.SetUniformBuffers(0, stackalloc[] { new BufferRange(bufferHandle, 0, ParamsBufferSize) });
+                _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
 
                 Span<Auto<DisposableBuffer>> sbRanges = new Auto<DisposableBuffer>[2];
 
@@ -571,7 +571,7 @@ namespace Ryujinx.Graphics.Vulkan
             int conversionType = srcIsMs ? src.Info.BytesPerPixel : -src.Info.BytesPerPixel;
             _pipeline.Specialize(conversionType);
 
-            _pipeline.SetUniformBuffers(0, stackalloc[] { new BufferRange(bufferHandle, 0, ParamsBufferSize) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(bufferHandle, 0, ParamsBufferSize)) });
 
             if (src.Info.Target == Target.Texture2DMultisampleArray ||
                 dst.Info.Target == Target.Texture2DMultisampleArray)
@@ -776,7 +776,7 @@ namespace Ryujinx.Graphics.Vulkan
                 srcIndirectBufferOffset,
                 indirectDataSize);
 
-            _pipeline.SetUniformBuffers(0, stackalloc[] { drawCountBufferAligned });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, drawCountBufferAligned) });
             _pipeline.SetStorageBuffers(1, new[] { srcIndirectBuffer.GetBuffer(), dstIndirectBuffer.GetBuffer(), patternBuffer.GetBuffer() });
 
             _pipeline.SetProgram(_programConvertIndirectData);
@@ -804,7 +804,7 @@ namespace Ryujinx.Graphics.Vulkan
                 0,
                 convertedCount * outputIndexSize);
 
-            _pipeline.SetUniformBuffers(0, stackalloc[] { new BufferRange(patternBufferHandle, 0, ParamsBufferSize) });
+            _pipeline.SetUniformBuffers(stackalloc[] { new BufferAssignment(0, new BufferRange(patternBufferHandle, 0, ParamsBufferSize)) });
             _pipeline.SetStorageBuffers(1, new[] { srcIndexBuffer.GetBuffer(), dstIndexBuffer.GetBuffer() });
 
             _pipeline.SetProgram(_programConvertIndexBuffer);

Ryujinx.Graphics.Vulkan/PipelineBase.cs

@@ -973,9 +973,9 @@ namespace Ryujinx.Graphics.Vulkan
             SignalStateChange();
         }
 
-        public void SetStorageBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetStorageBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            _descriptorSetUpdater.SetStorageBuffers(CommandBuffer, first, buffers);
+            _descriptorSetUpdater.SetStorageBuffers(CommandBuffer, buffers);
         }
 
         public void SetStorageBuffers(int first, ReadOnlySpan<Auto<DisposableBuffer>> buffers)
@@ -1013,9 +1013,9 @@ namespace Ryujinx.Graphics.Vulkan
             }
         }
 
-        public void SetUniformBuffers(int first, ReadOnlySpan<BufferRange> buffers)
+        public void SetUniformBuffers(ReadOnlySpan<BufferAssignment> buffers)
         {
-            _descriptorSetUpdater.SetUniformBuffers(CommandBuffer, first, buffers);
+            _descriptorSetUpdater.SetUniformBuffers(CommandBuffer, buffers);
         }
 
         public void SetUserClipDistance(int index, bool enableClip)

Ryujinx.Graphics.Vulkan/VulkanRenderer.cs

@@ -22,6 +22,8 @@ namespace Ryujinx.Graphics.Vulkan
         private Device _device;
         private WindowBase _window;
 
+        private bool _initialized;
+
         internal FormatCapabilities FormatCapabilities { get; private set; }
         internal HardwareCapabilities Capabilities;
 
@@ -266,6 +268,8 @@ namespace Ryujinx.Graphics.Vulkan
             LoadFeatures(supportedExtensions, maxQueueCount, queueFamilyIndex);
 
             _window = new Window(this, _surface, _physicalDevice, _device);
+
+            _initialized = true;
         }
 
         public BufferHandle CreateBuffer(int size)
@@ -573,6 +577,11 @@ namespace Ryujinx.Graphics.Vulkan
 
         public unsafe void Dispose()
         {
+            if (!_initialized)
+            {
+                return;
+            }
+
             CommandBufferPool.Dispose();
             BackgroundResources.Dispose();
             _counters.Dispose();
@@ -613,4 +622,4 @@ namespace Ryujinx.Graphics.Vulkan
             Api.DestroyInstance(_instance, null);
         }
     }
-}
+}

Ryujinx.HLE/HOS/Horizon.cs

@@ -479,7 +479,10 @@ namespace Ryujinx.HLE.HOS
 
                 AudioRendererManager.Dispose();
 
-                LibHacHorizonManager.PmClient.Fs.UnregisterProgram(LibHacHorizonManager.ApplicationClient.Os.GetCurrentProcessId().Value).ThrowIfFailure();
+                if (LibHacHorizonManager.ApplicationClient != null)
+                {
+                    LibHacHorizonManager.PmClient.Fs.UnregisterProgram(LibHacHorizonManager.ApplicationClient.Os.GetCurrentProcessId().Value).ThrowIfFailure();
+                }
 
                 KernelContext.Dispose();
             }

Ryujinx/Ui/MainWindow.cs

@@ -735,7 +735,6 @@ namespace Ryujinx.Ui
 
                                 _emulationContext.Dispose();
                                 SwitchToGameTable();
-                                RendererWidget.Dispose();
 
                                 return;
                             }
@@ -747,7 +746,6 @@ namespace Ryujinx.Ui
 
                             _emulationContext.Dispose();
                             SwitchToGameTable();
-                            RendererWidget.Dispose();
 
                             return;
                         }
@@ -770,7 +768,6 @@ namespace Ryujinx.Ui
 
                         _emulationContext.Dispose();
                         SwitchToGameTable();
-                        RendererWidget.Dispose();
 
                         return;
                     }

Ryujinx/Ui/RendererWidgetBase.cs

@@ -519,10 +519,14 @@ namespace Ryujinx.Ui
             _gpuCancellationTokenSource.Cancel();
 
             _isStopped = true;
-            _isActive = false;
+            
+            if (_isActive)
+            {
+                _isActive = false;
 
-            _exitEvent.WaitOne();
-            _exitEvent.Dispose();
+                _exitEvent.WaitOne();
+                _exitEvent.Dispose();
+            }
         }
 
         private void NVStutterWorkaround()

Ryujinx/Ui/VKRenderer.cs

@@ -72,7 +72,8 @@ namespace Ryujinx.Ui
 
         protected override void Dispose(bool disposing)
         {
-            Device.DisposeGpu();
+            Device?.DisposeGpu();
+
             NpadManager.Dispose();
         }
     }