Refactor core systems and improve resource management

- Updated dependencies, including `Misaki.HighPerformance` and `TerraFX.Interop`.
- Refactored `Result` struct for better error handling and chaining.
- Removed `Ptr<T>` struct as it was no longer necessary.
- Enhanced `Win32Utility` with `Attach` and `Dispose` methods.
- Improved `ProjectService` and `AppStateMachine` with `Result` integration.
- Refactored `IShaderCompiler` to support SPIR-V cross-compilation and pass-level compilation.
- Standardized Direct3D12 resource management with `UniquePtr` and added `D3D12Object` base class.
- Improved shader reflection validation and pipeline creation in `D3D12PipelineLibrary`.
- Updated `SDLCompiler` for better error handling during shader generation.
- Enhanced logging, debugging, and code readability across the codebase.
- Performed general code cleanup, including unused namespace removal and naming consistency.

Ghost.Core/Ghost.Core.csproj

@@ -20,10 +20,10 @@
   <ItemGroup>
     <PackageReference Include="Misaki.HighPerformance" Version="1.0.0" />
     <PackageReference Include="Misaki.HighPerformance.Jobs" Version="1.1.0" />
-    <PackageReference Include="Misaki.HighPerformance.LowLevel" Version="1.1.2" />
+    <PackageReference Include="Misaki.HighPerformance.LowLevel" Version="1.2.0" />
     <PackageReference Include="Misaki.HighPerformance.Mathematics" Version="1.2.6" />
-    <PackageReference Include="System.IO.Hashing" Version="9.0.10" />
+    <PackageReference Include="System.IO.Hashing" Version="10.0.0" />
-    <PackageReference Include="TerraFX.Interop.Windows" Version="10.0.26100.2" />
+    <PackageReference Include="TerraFX.Interop.Windows" Version="10.0.26100.5" />
   </ItemGroup>
 
 </Project>

Ghost.Core/Ptr.cs

@@ -1,27 +0,0 @@
-using System.Runtime.CompilerServices;
-
-namespace Ghost.Core;
-
-public unsafe readonly struct Ptr<T>
-    where T : unmanaged
-{
-    public readonly T* value;
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public Ptr(T* value)
-    {
-        this.value = value;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static implicit operator T*(Ptr<T> ptr)
-    {
-        return ptr.value;
-    }
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static implicit operator Ptr<T>(T* value)
-    {
-        return new Ptr<T>(value);
-    }
-}

Ghost.Core/Result.cs

@@ -1,15 +1,22 @@
+using System.Runtime.CompilerServices;
+using TerraFX.Interop.Windows;
+
 namespace Ghost.Core;
 
 public readonly struct Result
 {
-    public readonly bool success;
+    private readonly bool _isSuccess;
+    private readonly string? _message;
 
-    public readonly string? message;
+    public readonly bool IsSuccess => _isSuccess;
+    public readonly bool IsFailure => !_isSuccess;
+
+    public readonly string? Message => _message;
 
     public Result(bool success, string? message = null)
     {
-        this.success = success;
+        _isSuccess = success;
-        this.message = message;
+        _message = message;
     }
 
     public static Result Success()
@@ -17,7 +24,7 @@ public readonly struct Result
         return new Result(true);
     }
 
-    public static Result Fail(string? message)
+    public static Result Failure(string? message = null)
     {
         return new Result(false, message);
     }
@@ -27,23 +34,48 @@ public readonly struct Result
         return Result<T>.Success(value);
     }
 
-    public override string ToString() => success ? "OK" : $"Error: {message}";
+    public static Result<T> Failure<T>(string? message = null)
+    {
+        return Result<T>.Failure(message);
+    }
 
-    public static implicit operator bool(Result result) => result.success;
+    public static Result<T, S> Create<T, S>(T value, S status)
+    {
+        return new Result<T, S>(value, status);
+    }
+
+    public override string ToString() => IsSuccess ? "OK" : $"Error: {Message}";
+
+    public static implicit operator bool(Result result) => result.IsSuccess;
 }
 
 public readonly struct Result<T>
 {
-    public readonly bool success;
+    private readonly bool _isSuccess;
-    public readonly T value;
+    private readonly T _value;
+    private readonly string? _message;
 
-    public readonly string? message;
+    public readonly bool IsSuccess => _isSuccess;
+    public readonly bool IsFailure => !_isSuccess;
+
+    public readonly T Value => _value;
+    public readonly string? Message => _message;
 
     public Result(bool success, T value, string? message = null)
     {
-        this.success = success;
+        _isSuccess = success;
-        this.value = value;
+        _value = value;
-        this.message = message;
+        _message = message;
+    }
+
+    public ref readonly T GetValueRef()
+    {
+        if (!IsSuccess)
+        {
+            throw new InvalidOperationException("Cannot get value from a failed Result.");
+        }
+
+        return ref Unsafe.AsRef(in _value);
     }
 
     public static Result<T> Success(T value)
@@ -51,26 +83,52 @@ public readonly struct Result<T>
         return new Result<T>(true, value);
     }
 
-    public static Result<T> Fail(string? message)
+    public static Result<T> Failure(string? message = null)
     {
         return new Result<T>(false, default!, message);
     }
 
-    public override string ToString() => success ? $"OK: {value}" : $"Error: {message}";
+    public override string ToString() => IsSuccess ? $"OK: {Value}" : $"Error: {Message}";
 
-    public static implicit operator Result<T>(T? data) => data is not null ? Success(data) : Fail(null);
+    public static implicit operator Result<T>(T? data) => data is not null ? Success(data) : Failure(null);
-    public static implicit operator Result<T>(Result result) => result.success ? Success(default!) : Fail(result.message);
+    public static implicit operator Result<T>(Result result) => result.IsSuccess ? Success(default!) : Failure(result.Message);
+
+    public static implicit operator bool(Result<T> result) => result.IsSuccess;
+    public static implicit operator Result(Result<T> result) => result.IsSuccess ? Result.Success() : Result.Failure(result.Message);
+}
+
+public enum ResultStatus : byte
+{
+    Success,
+    NotFound,
+    InvalidArgument,
+    InvalidState,
+    InternalError,
+    PermissionDenied,
+    NotSupported,
+    OutOfMemory,
+    Timeout,
+    Cancelled,
+    UnknownError
 }
 
 public readonly struct Result<T, S>
 {
-    public readonly T value;
+    private readonly T _value;
-    public readonly S status;
+    private readonly S _status;
+
+    public T Value => _value;
+    public S Status => _status;
 
     public Result(T value, S status)
     {
-        this.value = value;
+        _value = value;
-        this.status = status;
+        _status = status;
+    }
+
+    public ref readonly T GetValueRef()
+    {
+        return ref Unsafe.AsRef(in _value);
     }
 
     public static Result<T, S> Create(T value, S status)
@@ -78,26 +136,71 @@ public readonly struct Result<T, S>
         return new Result<T, S>(value, status);
     }
 
-    public override string ToString() => $"Value: {value}, Status: {status}";
+    public override string ToString() => $"Value: {_value}, Status: {_status}";
 }
 
 public static class ResultExtensions
 {
     public static void ThrowIfFailed(this Result result)
     {
-        if (!result.success)
+        if (!result.IsSuccess)
         {
-            throw new InvalidOperationException($"Operation failed: {result.message}");
+            throw new InvalidOperationException($"Operation failed: {result.Message}");
         }
     }
 
     public static T GetValueOrThrow<T>(this Result<T> result)
     {
-        if (!result.success)
+        if (!result.IsSuccess)
         {
-            throw new InvalidOperationException($"Operation failed: {result.message}");
+            throw new InvalidOperationException($"Operation failed: {result.Message}");
         }
 
-        return result.value;
+        return result.Value;
+    }
+
+    public static T? GetValueOrDefault<T>(this Result<T> result, T? defaultValue = default)
+    {
+        return result.IsSuccess ? result.Value : defaultValue;
+    }
+
+    public static Result OnSuccess(this Result result, Action action)
+    {
+        if (result.IsSuccess)
+        {
+            action();
+        }
+
+        return result;
+    }
+
+    public static Result<T> OnSuccess<T>(this Result<T> result, Action<T> action)
+    {
+        if (result.IsSuccess)
+        {
+            action(result.Value);
+        }
+
+        return result;
+    }
+
+    public static Result OnFailed(this Result result, Action<string?> action)
+    {
+        if (result.IsFailure)
+        {
+            action(result.Message);
+        }
+
+        return result;
+    }
+
+    public static Result<T> OnFailed<T>(this Result<T> result, Action<string?> action)
+    {
+        if (result.IsFailure)
+        {
+            action(result.Message);
+        }
+
+        return result;
     }
 }

Ghost.Core/Utilities/Win32Utility.cs

@@ -42,6 +42,32 @@ internal static unsafe partial class Win32Utility
         return new IID_PPV(Windows.__uuidof<T>(), comPtr.PPV());
     }
 
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static void Attach<T>(ref this UniquePtr<T> uPtr, T* other)
+        where T : unmanaged, IUnknown.Interface
+    {
+        var ptr = uPtr.Get();
+        if (ptr != null)
+        {
+            var refCount = ptr->Release();
+            Debug.Assert((refCount != 0) || (ptr != other));
+        }
+
+        uPtr = new UniquePtr<T>(other);
+    }
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    public static void Dispose<T>(ref this UniquePtr<T> uPtr)
+        where T : unmanaged, IUnknown.Interface
+    {
+        T* ptr = uPtr.Get();
+        if (ptr != null)
+        {
+            uPtr = default;
+            MemoryLeakException.ThrowIfRefCountNonZero(ptr->Release());
+        }
+    }
+
     [Conditional("DEBUG")]
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static void Assert(this HRESULT hr)
@@ -50,9 +76,14 @@ internal static unsafe partial class Win32Utility
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static void ThrowIfFailed(this HRESULT hr)
+    public static Result ToResult(this HRESULT hr, [CallerArgumentExpression(nameof(hr))] string? op = null)
     {
-        Windows.ThrowIfFailed(hr);
+        if (hr.SUCCEEDED)
+        {
+            return Result.Success();
+        }
+        
+        return Result.Failure($"{op} failed with code {hr}");
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
@@ -102,8 +133,6 @@ internal static unsafe partial class Win32Utility
     extension(MemoryLeakException)
     {
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        [Conditional("DEBUG")]
-        [Conditional("GHOST_EDITOR")]
         public static void ThrowIfRefCountNonZero(uint count)
         {
             if (count != 0)

Ghost.Data/Services/ProjectService.cs

@@ -75,26 +75,26 @@ internal partial class ProjectService
     {
         if (string.IsNullOrWhiteSpace(projectDirectory) || !Directory.Exists(projectDirectory))
         {
-            return Result<ProjectMetadataInfo>.Fail("Project directory is invalid or does not exist.");
+            return Result<ProjectMetadataInfo>.Failure("Project directory is invalid or does not exist.");
         }
 
         var projectAssetsPath = Path.Combine(projectDirectory, ASSETS_FOLDER);
         var projectConfigPath = Path.Combine(projectDirectory, CONFIG_FOLDER);
         if (!Directory.Exists(projectAssetsPath) || !Directory.Exists(projectConfigPath))
         {
-            return Result<ProjectMetadataInfo>.Fail("Project folder structure is invalid.");
+            return Result<ProjectMetadataInfo>.Failure("Project folder structure is invalid.");
         }
 
         var metadataPath = Directory.GetFiles(projectDirectory, $"*.{ProjectMetadata.PROJECT_EXTENSION}", SearchOption.TopDirectoryOnly).FirstOrDefault();
         if (string.IsNullOrWhiteSpace(metadataPath) || !File.Exists(metadataPath))
         {
-            return Result<ProjectMetadataInfo>.Fail("Project metadata file not found.");
+            return Result<ProjectMetadataInfo>.Failure("Project metadata file not found.");
         }
 
         var metadata = await LoadMetadataAsync(metadataPath);
         if (metadata == null)
         {
-            return Result<ProjectMetadataInfo>.Fail("Project metadata file is corrupted or invalid.");
+            return Result<ProjectMetadataInfo>.Failure("Project metadata file is corrupted or invalid.");
         }
 
         return new ProjectMetadataInfo(metadataPath, metadata);
@@ -187,7 +187,7 @@ internal partial class ProjectService
                 // Check if folder is empty
                 if (Directory.EnumerateFiles(projectPath, "*", SearchOption.AllDirectories).Any())
                 {
-                    return new(false, default, "Directory is not empty");
+                    return Result.Failure("Directory is not empty");
                 }
             }
 
@@ -197,28 +197,28 @@ internal partial class ProjectService
             await SetupRequestFolderAsync(projectPath, templatePath);
 
             var info = await AddProjectAsync(projectName, metadataPath);
-            return new(true, new(metadataPath, metadata));
+            return Result.Success(new ProjectMetadataInfo(metadataPath, metadata));
         }
         catch (Exception e)
         {
-            return Result<ProjectMetadataInfo>.Fail($"Failed to create project: {e.Message}");
+            return Result.Failure($"Failed to create project: {e.Message}");
         }
     }
 
     public async Task<Result<ProjectMetadataInfo>> AddProjectFromDirectoryAsync(string projectDirectory)
     {
         var result = await ValidateProjectDirectoryAsync(projectDirectory);
-        if (!result.success)
+        if (result.IsFailure)
         {
             return result;
         }
 
-        if (await HasProjectAsync(result.value.Path))
+        if (await HasProjectAsync(result.Value.Path))
         {
-            return Result<ProjectMetadataInfo>.Fail("Project already exists.");
+            return Result.Failure("Project already exists.");
         }
 
-        await AddProjectAsync(result.value.Metadata.Name, result.value.Path);
+        await AddProjectAsync(result.Value.Metadata.Name, result.Value.Path);
 
         return result;
     }

Ghost.Editor.Core/AppState/AppStateMachine.cs

@@ -1,3 +1,5 @@
+using Ghost.Core;
+
 namespace Ghost.Editor.Core.AppState;
 
 internal partial class AppStateMachine : IDisposable, IAsyncDisposable
@@ -5,52 +7,91 @@ internal partial class AppStateMachine : IDisposable, IAsyncDisposable
     private Dictionary<StateKey, Lazy<IAppState>> _states = new();
     private IAppState? _current;
 
+    private bool _disposed;
+
     public void RegisterState(StateKey key, Func<IAppState> stateFactory)
     {
         _states[key] = new(stateFactory);
     }
 
-    public async Task TransitionToAsync(StateKey stateKey, object? parameter = null)
+    public async Task<Result> TransitionToAsync(StateKey stateKey, object? parameter = null)
     {
         var previous = _current;
         if (!_states.TryGetValue(stateKey, out var next))
         {
-            throw new InvalidOperationException($"State '{stateKey}' is not registered.");
+            return Result.Failure($"State '{stateKey}' not found.");
+        }
+
+        Result result;
+        if (previous != null)
+        {
+            result = await previous.OnExitingAsync();
+            if (result.IsFailure)
+            {
+                return result;
+            }
+        }
+
+        result = await next.Value.OnEnteringAsync(parameter);
+        if (result.IsFailure)
+        {
+            if (previous != null)
+            {
+                await previous.OnEnteredAsync(parameter);
+            }
+
+            return result;
         }
 
         if (previous != null)
         {
-            await previous.OnExitingAsync();
+            result = await previous.OnExitedAsync();
+            if (result.IsFailure)
+            {
+                await next.Value.OnExitedAsync();
+                await previous.OnEnteredAsync(parameter);
+                return result;
+            }
         }
 
-        await next.Value.OnEnteringAsync(parameter);
+        result = await next.Value.OnEnteredAsync(parameter);
-
+        if (result.IsFailure)
-        if (previous != null)
         {
-            await previous.OnExitedAsync();
+            await next.Value.OnExitedAsync();
-        }
 
-        await next.Value.OnEnteredAsync(parameter);
+            if (previous != null)
+            {
+                await previous.OnEnteredAsync(parameter);
+            }
+
+            return result;
+        }
 
         _current = next.Value;
+
+        return Result.Success();
     }
 
     public void Dispose()
     {
-        _states.Clear();
+        DisposeAsync().AsTask().Wait();
-
-        _current?.OnExitingAsync().GetAwaiter().GetResult();
-        _current?.OnExitedAsync().GetAwaiter().GetResult();
-        _current = null;
     }
 
     public async ValueTask DisposeAsync()
     {
+        if (_disposed)
+        {
+            return;
+        }
+
         _states.Clear();
         if (_current != null)
         {
             await _current.OnExitingAsync();
             await _current.OnExitedAsync();
         }
+
+        _current = null;
+        _disposed = true;
     }
 }

Ghost.Editor.Core/AppState/IAppState.cs

@@ -1,3 +1,5 @@
+using Ghost.Core;
+
 namespace Ghost.Editor.Core.AppState;
 
 internal interface IAppState
@@ -5,22 +7,22 @@ internal interface IAppState
     /// <summary>
     /// Called when exiting the state.
     /// </summary>
-    public Task OnExitingAsync();
+    public Task<Result> OnExitingAsync();
 
     /// <summary>
     /// Called when entering the state, right after OnEnteringAsync.
     /// <paramref name="parameter">can be used to pass data into the state, such as a project to load.</summary>
     /// </summary>
-    public Task OnEnteringAsync(object? parameter);
+    public Task<Result> OnEnteringAsync(object? parameter);
 
     /// <summary>
     /// Called when exiting the state, specifically for pose transitions.
     /// </summary>
-    public Task OnExitedAsync();
+    public Task<Result> OnExitedAsync();
 
     /// <summary>
     /// Called when entered the state, specifically after the state has been fully initialized and is ready for interaction.
     /// </summary>
     /// <param name="parameter">can be used to pass data into the state, such as a project to load.</param>
-    public Task OnEnteredAsync(object? parameter);
+    public Task<Result> OnEnteredAsync(object? parameter);
 }

Ghost.Editor.Core/AssetHandle/AssetDatabase.Meta.cs

@@ -1,6 +1,5 @@
 using Ghost.Core;
 using Ghost.Editor.Core.Utilities;
-using Ghost.Engine.Services;
 using System.Reflection;
 using System.Text.Json;
 
@@ -8,7 +7,7 @@ namespace Ghost.Editor.Core.AssetHandle;
 
 public static partial class AssetDatabase
 {
-    private static readonly Dictionary<string, Type> _importerTypeLookup = new();
+    private static readonly Dictionary<string, Type> s_importerTypeLookup = new();
 
     private static void InitializeMetaData()
     {
@@ -23,7 +22,7 @@ public static partial class AssetDatabase
             var attribute = type.GetCustomAttribute<AssetImporterAttribute>()!;
             foreach (var extension in attribute.SupportedExtensions)
             {
-                _importerTypeLookup[extension] = type;
+                s_importerTypeLookup[extension] = type;
             }
         }
 
@@ -36,12 +35,12 @@ public static partial class AssetDatabase
     {
         if (Directory.Exists(assetPath))
         {
-            return Result<string>.Fail("Folder does not have meta data");
+            return Result<string>.Failure("Folder does not have meta data");
         }
 
         if (Path.GetExtension(assetPath).Equals(".meta", StringComparison.OrdinalIgnoreCase))
         {
-            return Result<string>.Fail("Asset path cannot be a meta file");
+            return Result<string>.Failure("Asset path cannot be a meta file");
         }
 
         return Result<string>.Success(assetPath + ".meta");
@@ -51,7 +50,7 @@ public static partial class AssetDatabase
     {
         var extension = Path.GetExtension(assetPath);
 
-        if (_importerTypeLookup.TryGetValue(extension, out var importerType))
+        if (s_importerTypeLookup.TryGetValue(extension, out var importerType))
         {
             var settingsType = importerType.BaseType?.GetGenericArguments()[0];
             if (settingsType == null || !typeof(ImporterSettings).IsAssignableFrom(settingsType))
@@ -79,28 +78,27 @@ public static partial class AssetDatabase
         }
     }
 
-    internal static void GenerateMetaFile(string assetPath)
+    internal static Result GenerateMetaFile(string assetPath)
     {
         var metaFileResult = GetMetaFilePath(assetPath);
-        if (!metaFileResult.success)
+        if (!metaFileResult.IsSuccess)
         {
-            Logger.LogError(metaFileResult.message ?? string.Empty);
+            return metaFileResult;
-            return;
         }
 
-        if (File.Exists(metaFileResult.value))
+        if (File.Exists(metaFileResult.Value))
         {
-            var existingMeta = JsonSerializer.Deserialize<AssetMeta>(File.ReadAllText(metaFileResult.value));
+            var existingMeta = JsonSerializer.Deserialize<AssetMeta>(File.ReadAllText(metaFileResult.Value));
-            if (existingMeta != null && _assetPathLookup.TryGetValue(existingMeta.Guid, out var path))
+            if (existingMeta != null && s_assetPathLookup.TryGetValue(existingMeta.Guid, out var path))
             {
                 if (assetPath != path)
                 {
                     existingMeta.Guid = Guid.NewGuid();
-                    WriteMetaFile(metaFileResult.value, existingMeta);
+                    WriteMetaFile(metaFileResult.Value, existingMeta);
                 }
             }
 
-            return;
+            return Result.Success();
         }
 
         var defaultSettings = GetDefaultSettingsForAsset(assetPath);
@@ -110,7 +108,9 @@ public static partial class AssetDatabase
             Settings = defaultSettings
         };
 
-        WriteMetaFile(metaFileResult.value, metaData);
+        WriteMetaFile(metaFileResult.Value, metaData);
+
+        return Result.Success();
     }
 
     private static void OnAssetCreated(object sender, FileSystemEventArgs e)
@@ -121,19 +121,19 @@ public static partial class AssetDatabase
     private static void OnAssetDeleted(object sender, FileSystemEventArgs e)
     {
         var metaFileResult = GetMetaFilePath(e.FullPath);
-        if (metaFileResult.success && File.Exists(metaFileResult.value))
+        if (metaFileResult.IsSuccess && File.Exists(metaFileResult.Value))
         {
             try
             {
-                var meta = JsonSerializer.Deserialize<AssetMeta>(File.ReadAllText(metaFileResult.value));
+                var meta = JsonSerializer.Deserialize<AssetMeta>(File.ReadAllText(metaFileResult.Value));
                 if (meta != null
-                    && _assetPathLookup.TryGetValue(meta.Guid, out var path)
+                    && s_assetPathLookup.TryGetValue(meta.Guid, out var path)
                     && path == e.FullPath)
                 {
-                    _assetPathLookup.Remove(meta.Guid);
+                    s_assetPathLookup.Remove(meta.Guid);
                 }
 
-                File.Delete(metaFileResult.value);
+                File.Delete(metaFileResult.Value);
             }
             catch (Exception ex)
             {

Ghost.Editor.Core/AssetHandle/AssetDatabase.cs

@@ -6,7 +6,7 @@ public static partial class AssetDatabase
 {
     private static FileSystemWatcher? _watcher;
 
-    private static readonly Dictionary<Guid, string> _assetPathLookup = new();
+    private static readonly Dictionary<Guid, string> s_assetPathLookup = new();
 
     public static DirectoryInfo? AssetsDirectory
     {

Ghost.Editor.Core/Controls/ValueControl.cs

@@ -56,11 +56,11 @@ public partial class ValueControl<T> : Control
     }
 
     /// <summary>
-    /// Sets the value without notifying the change event.
+    /// Sets the _value without notifying the change event.
     /// </summary>
-    /// <param name="value">The new value to set.</param>
+    /// <param name="value">The new _value to set.</param>
     /// <remarks>This method only suppresses the change event notification, not the <see cref="ValueChanged(T, T)"/> method.
-    /// Useful when you need to change the value programmatically without triggering the change event.</remarks>
+    /// Useful when you need to change the _value programmatically without triggering the change event.</remarks>
     public void SetValueWithoutNotifying(T value)
     {
         _suppressChangedEvent = true;

Ghost.Editor/ViewModels/Pages/Landing/CreateProjectViewModel.cs

@@ -73,17 +73,17 @@ internal partial class CreateProjectViewModel(INotificationService notificationS
         }
 
         var result = await projectService.CreateProjectAsync(ProjectName, ProjectLocation, EngineData.s_engineVersion, SelectedTemplate.Value.directory);
-        if (!result.success)
+        if (result.IsFailure)
         {
-            notificationService.ShowNotification(result.message, MessageType.Error);
+            notificationService.ShowNotification(result.Message, MessageType.Error);
             return;
         }
 
         try
         {
-            await stateService.TransitionToAsync(StateKey.EngineEditor, result.value);
+            await stateService.TransitionToAsync(StateKey.EngineEditor, result.Value);
         }
-        catch (System.Exception e)
+        catch (Exception e)
         {
             notificationService.ShowNotification($"Failed to load project: {e.Message}", MessageType.Error);
         }

Ghost.Editor/ViewModels/Pages/Landing/OpenProjectViewModel.cs

@@ -66,14 +66,14 @@ internal partial class OpenProjectViewModel(ProjectService projectService, INoti
             if (rootFolder != null)
             {
                 var result = await projectService.AddProjectFromDirectoryAsync(rootFolder.Path);
-                if (result.success)
+                if (result.IsSuccess)
                 {
-                    projects.Add(result.value);
+                    projects.Add(result.Value);
                     goto CloseDropPanel;
                 }
                 else
                 {
-                    errorMessage = result.message;
+                    errorMessage = result.Message;
                 }
             }
         }

Ghost.Entities/Components/ScriptComponent.cs

@@ -7,7 +7,7 @@ public abstract class ScriptComponent : IComponentData
     internal World _world = null!;
 
     /// <summary>
-    /// Gets or sets a value indicating whether this script component is enabled.
+    /// Gets or sets a Value indicating whether this script component is enabled.
     /// </summary>
     public bool Enable
     {

Ghost.Entities/EntityManager.cs

@@ -108,7 +108,7 @@ public readonly struct EntityManager : IDisposable
     /// </summary>
     /// <typeparam name="T">The type of the component to set.</typeparam>
     /// <param name="entity">The entity for which the component is to be add.</param>
-    /// <param name="component">The component value to add.</param>
+    /// <param name="component">The component Value to add.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void AddComponent<T>(Entity entity, T component)
         where T : unmanaged, IComponentData
@@ -145,7 +145,7 @@ public readonly struct EntityManager : IDisposable
     /// Sets a component of the specified type for the given <see cref="Entity"/>.
     /// </summary>
     /// <param name="entity">The entity for which the component is to be set.</param>
-    /// <param name="component">The component value to set.</param>
+    /// <param name="component">The component Value to set.</param>
     /// <param name="type">The type of the component to set.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetComponent(Entity entity, IComponentData component, Type type)
@@ -169,7 +169,7 @@ public readonly struct EntityManager : IDisposable
     /// </summary>
     /// <typeparam name="T">The type of the component to set.</typeparam>
     /// <param name="entity">The entity for which the component is to be set.</param>
-    /// <param name="component">The component value to set.</param>
+    /// <param name="component">The component Value to set.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetComponent<T>(Entity entity, in T component)
         where T : unmanaged, IComponentData

Ghost.Entities/Query/QueryFilter.cs

@@ -40,11 +40,11 @@ public struct QueryFilter : IDisposable
 
                 if (!allMask.IsCreated)
                 {
-                    allMask = new UnsafeBitSet(mask.Length, Allocator.Stack, AllocationOption.None);
+                    allMask = new UnsafeBitSet(mask.Count, Allocator.Stack, AllocationOption.None);
                     allMask.SetAll();
                 }
 
-                allMask.AndOperation(mask);
+                allMask.And(mask);
             }
 
             foreach (var typeHandle in _any)
@@ -53,10 +53,10 @@ public struct QueryFilter : IDisposable
 
                 if (!anyMask.IsCreated)
                 {
-                    anyMask = new UnsafeBitSet(mask.Length, Allocator.Stack);
+                    anyMask = new UnsafeBitSet(mask.Count, Allocator.Stack);
                 }
 
-                anyMask.OrOperation(mask);
+                anyMask.And(mask);
             }
 
             foreach (var typeHandle in _absent)
@@ -65,25 +65,25 @@ public struct QueryFilter : IDisposable
 
                 if (!absentMask.IsCreated)
                 {
-                    absentMask = new UnsafeBitSet(mask.Length, Allocator.Stack);
+                    absentMask = new UnsafeBitSet(mask.Count, Allocator.Stack);
                 }
 
-                absentMask.OrOperation(mask);
+                absentMask.Or(mask);
             }
 
             if (allMask.IsCreated)
             {
-                result.AndOperation(allMask);
+                result.And(allMask);
             }
 
             if (anyMask.IsCreated)
             {
-                result.AndOperation(anyMask);
+                result.And(anyMask);
             }
 
             if (absentMask.IsCreated)
             {
-                result.AndOperation(~absentMask);
+                result.And(~absentMask);
             }
         }
 

Ghost.Graphics/Contracts/IShaderCompiler.cs

@@ -1,12 +1,15 @@
 using Ghost.Core;
+using Ghost.Core.Graphics;
+using Ghost.Graphics.RHI;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
 
-namespace Ghost.Graphics.RHI;
+namespace Ghost.Graphics.Contracts;
 
 public struct CompileResult : IDisposable
 {
     public UnsafeArray<byte> bytecode;
+    public ShaderReflectionData reflectionData;
 
     public readonly bool IsCreated => bytecode.IsCreated;
 
@@ -16,6 +19,20 @@ public struct CompileResult : IDisposable
     }
 }
 
+public struct GraphicsCompiledResult : IDisposable
+{
+    public CompileResult tsResult;
+    public CompileResult msResult;
+    public CompileResult psResult;
+
+    public void Dispose()
+    {
+        tsResult.Dispose();
+        msResult.Dispose();
+        psResult.Dispose();
+    }
+}
+
 public ref struct CompilerConfig
 {
     public ReadOnlySpan<string> defines;
@@ -49,7 +66,8 @@ public enum CompilerOption
     None = 0,
     KeepDebugInfo = 1 << 0,
     KeepReflections = 1 << 1,
-    WarnAsError = 1 << 2
+    WarnAsError = 1 << 2,
+    SpirvCrossCompile = 1 << 3
 }
 
 public enum ShaderStage
@@ -125,6 +143,7 @@ public readonly struct ShaderReflectionData
 
 public unsafe interface IShaderCompiler
 {
-    Result<CompileResult> Compile(ref readonly CompilerConfig config, Allocator allocator, void** ppReflection);
+    Result<CompileResult> Compile(ref readonly CompilerConfig config, Allocator allocator);
-    Result<ShaderReflectionData> PerformDXCReflection<T>(T* pReflectionBlob) where T : unmanaged;
+    Result<GraphicsCompiledResult> CompilePass(IPassDescriptor descriptor);
+    Result<GraphicsCompiledResult> LoadCompiledCache(ShaderPassKey key);
 }

Ghost.Graphics/Core/Material.cs

@@ -126,7 +126,7 @@ public ref struct MaterialAccessor
     /// Sets a float property in the material's constant buffer.
     /// </summary>
     /// <param name="propertyName">The name of the property to set.</param>
-    /// <param name="value">The value to set for the property.</param>
+    /// <param name="value">The Value to set for the property.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetFloat(string propertyName, in float value)
     {
@@ -137,7 +137,7 @@ public ref struct MaterialAccessor
     /// Sets a uint property in the material's constant buffer (useful for texture indices).
     /// </summary>
     /// <param name="propertyName">The name of the property to set.</param>
-    /// <param name="value">The value to set for the property.</param>
+    /// <param name="value">The Value to set for the property.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetUInt(string propertyName, in uint value)
     {
@@ -148,7 +148,7 @@ public ref struct MaterialAccessor
     /// Sets a Vector property in the material's constant buffer.
     /// </summary>
     /// <param name="propertyName">The name of the property to set.</param>
-    /// <param name="value">The value to set for the property.</param>
+    /// <param name="value">The Value to set for the property.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetVector(string propertyName, in float4 value)
     {
@@ -159,7 +159,7 @@ public ref struct MaterialAccessor
     /// Sets a Matrix property in the material's constant buffer.
     /// </summary>
     /// <param name="propertyName">The name of the property to set.</param>
-    /// <param name="value">The value to set for the property.</param>
+    /// <param name="value">The Value to set for the property.</param>
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public readonly void SetMatrix(string propertyName, in float4x4 value)
     {

Ghost.Graphics/Core/RenderingContext.cs

@@ -1,4 +1,5 @@
 using Ghost.Core;
+using Ghost.Graphics.Contracts;
 using Ghost.Graphics.RHI;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
@@ -17,6 +18,7 @@ public unsafe readonly ref struct RenderingContext
     public ICommandBuffer CopyCommandBuffer => _copyCmd;
     public ICommandBuffer ComputeCommandBuffer => _computeCmd;
 
+    public IShaderCompiler ShaderCompiler => _engine.ShaderCompiler;
     public IResourceAllocator ResourceAllocator => _engine.ResourceAllocator;
     public IResourceDatabase ResourceDatabase => _engine.ResourceDatabase;
     public IPipelineLibrary PipelineLibrary => _engine.PipelineLibrary;

Ghost.Graphics/D3D12/D3D12CommandBuffer.cs

@@ -14,9 +14,9 @@ using static TerraFX.Aliases.DXGI_Alias;
 
 namespace Ghost.Graphics.D3D12;
 
-internal unsafe class D3D12CommandBuffer : D3D12RHIObject<ID3D12GraphicsCommandList10>, ICommandBuffer
+internal unsafe class D3D12CommandBuffer : D3D12Object<ID3D12GraphicsCommandList10>, ICommandBuffer
 {
-    private ComPtr<ID3D12CommandAllocator> _allocator;
+    private UniquePtr<ID3D12CommandAllocator> _allocator;
 
     private readonly D3D12PipelineLibrary _pipelineLibrary;
     private readonly D3D12ResourceDatabase _resourceDatabase;
@@ -282,8 +282,15 @@ internal unsafe class D3D12CommandBuffer : D3D12RHIObject<ID3D12GraphicsCommandL
         ThrowIfNotRecording();
         IncrementCommandCount();
 
-        var shaderPipeline = _pipelineLibrary.GetGraphicsPSO(pipelineKey).GetValueOrThrow();
+        var psor = _pipelineLibrary.GetGraphicsPSO(pipelineKey);
-        nativeObject.Get()->SetPipelineState(shaderPipeline.value);
+        if (psor.Status != ResultStatus.Success)
+        {
+#if DEBUG || GHOST_EDITOR
+            Logger.LogError($"Failed to get graphics pipeline state object for key {pipelineKey}: {psor.Status}");
+#endif
+        }
+        
+        nativeObject.Get()->SetPipelineState(psor.Value);
     }
 
     public void SetConstantBufferView(uint slot, Handle<GraphicsBuffer> buffer)
@@ -479,7 +486,7 @@ internal unsafe class D3D12CommandBuffer : D3D12RHIObject<ID3D12GraphicsCommandL
 
     protected override void Dispose(bool disposing)
     {
-        if (IsDisposed)
+        if (Disposed)
         {
             return;
         }
@@ -489,7 +496,7 @@ internal unsafe class D3D12CommandBuffer : D3D12RHIObject<ID3D12GraphicsCommandL
             throw new InvalidOperationException("Command buffer is still recording");
         }
 
-        MemoryLeakException.ThrowIfRefCountNonZero(_allocator.Reset());
+        _allocator.Dispose();
         _commandCount = 0;
 
         base.Dispose(disposing);

Ghost.Graphics/D3D12/D3D12CommandQueue.cs

@@ -1,6 +1,7 @@
 using Ghost.Core.Utilities;
 using Ghost.Graphics.D3D12.Utilities;
 using Ghost.Graphics.RHI;
+using Misaki.HighPerformance.LowLevel;
 using TerraFX.Interop.DirectX;
 using TerraFX.Interop.Windows;
 
@@ -9,19 +10,18 @@ namespace Ghost.Graphics.D3D12;
 /// <summary>
 /// D3D12 implementation of command queue interface
 /// </summary>
-internal unsafe class D3D12CommandQueue : ICommandQueue
+internal unsafe class D3D12CommandQueue : D3D12Object<ID3D12CommandQueue>, ICommandQueue
 {
-    private ComPtr<ID3D12CommandQueue> _queue;
+    private UniquePtr<ID3D12Fence1> _fence;
-    private ComPtr<ID3D12Fence1> _fence;
     private readonly AutoResetEvent _fenceEvent;
     private ulong _fenceValue;
-    private bool _disposed;
 
     public CommandQueueType Type
     {
         get;
     }
-    public ID3D12CommandQueue* NativeQueue => _queue.Get();
+
+    public ID3D12CommandQueue* NativeQueue => nativeObject.Get();
 
     public D3D12CommandQueue(ID3D12Device14* pDevice, CommandQueueType type)
     {
@@ -41,17 +41,25 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
         ThrowIfFailed(pDevice->CreateCommandQueue(&queueDesc, __uuidof(pQueue), (void**)&pQueue));
         ThrowIfFailed(pDevice->CreateFence(0, D3D12_FENCE_FLAGS.D3D12_FENCE_FLAG_NONE, __uuidof(pFence), (void**)&pFence));
 
-        _queue.Attach(pQueue);
+        nativeObject.Attach(pQueue);
         _fence.Attach(pFence);
     }
 
-    ~D3D12CommandQueue()
+    private static D3D12_COMMAND_LIST_TYPE ConvertCommandQueueType(CommandQueueType type)
     {
-        Dispose();
+        return type switch
+        {
+            CommandQueueType.Graphics => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_DIRECT,
+            CommandQueueType.Compute => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_COMPUTE,
+            CommandQueueType.Copy => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_COPY,
+            _ => throw new ArgumentException($"Unknown command queue type: {type}")
+        };
     }
 
     public void Submit(ICommandBuffer commandBuffer)
     {
+        ThrowIfDisposed();
+
         if (commandBuffer.IsEmpty)
         {
             return;
@@ -61,7 +69,7 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
         {
             var commandList = d3d12CommandBuffer.NativeCommandList;
             var commandListPtr = (ID3D12CommandList*)commandList;
-            _queue.Get()->ExecuteCommandLists(1, &commandListPtr);
+            nativeObject.Get()->ExecuteCommandLists(1, &commandListPtr);
         }
         else
         {
@@ -71,6 +79,8 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
 
     public void Submit(params ReadOnlySpan<ICommandBuffer> commandBuffers)
     {
+        ThrowIfDisposed();
+
         Span<int> executableIndices = stackalloc int[commandBuffers.Length];
         executableIndices.Fill(-1);
 
@@ -107,18 +117,22 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
             currentIndex++;
         }
 
-        _queue.Get()->ExecuteCommandLists((uint)currentIndex, ppCommandLists);
+        nativeObject.Get()->ExecuteCommandLists((uint)currentIndex, ppCommandLists);
     }
 
     public ulong Signal(ulong value)
     {
+        ThrowIfDisposed();
+
         _fenceValue = value;
-        _queue.Get()->Signal((ID3D12Fence*)_fence.Get(), _fenceValue);
+        nativeObject.Get()->Signal((ID3D12Fence*)_fence.Get(), _fenceValue);
         return _fenceValue;
     }
 
     public void WaitForValue(ulong value)
     {
+        ThrowIfDisposed();
+
         if (_fence.Get()->GetCompletedValue() < value)
         {
             var handle = new HANDLE((void*)_fenceEvent.SafeWaitHandle.DangerousGetHandle());
@@ -131,39 +145,28 @@ internal unsafe class D3D12CommandQueue : ICommandQueue
 
     public ulong GetCompletedValue()
     {
+        ThrowIfDisposed();
         return _fence.Get()->GetCompletedValue();
     }
 
     public void WaitIdle()
     {
+        ThrowIfDisposed();
+
         var fenceValue = Signal(Interlocked.Increment(ref _fenceValue));
         WaitForValue(fenceValue);
     }
 
-    private static D3D12_COMMAND_LIST_TYPE ConvertCommandQueueType(CommandQueueType type)
+    protected override void Dispose(bool disposing)
     {
-        return type switch
+        if (Disposed)
-        {
-            CommandQueueType.Graphics => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_DIRECT,
-            CommandQueueType.Compute => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_COMPUTE,
-            CommandQueueType.Copy => D3D12_COMMAND_LIST_TYPE.D3D12_COMMAND_LIST_TYPE_COPY,
-            _ => throw new ArgumentException($"Unknown command queue type: {type}")
-        };
-    }
-
-    public void Dispose()
-    {
-        if (_disposed)
         {
             return;
         }
 
         _fenceEvent?.Dispose();
         _fence.Dispose();
-        _queue.Dispose();
 
-        _disposed = true;
+        base.Dispose(disposing);
-
-        GC.SuppressFinalize(this);
     }
 }

Ghost.Graphics/D3D12/D3D12DebugLayer.cs

@@ -1,3 +1,5 @@
+using Ghost.Core.Utilities;
+using Misaki.HighPerformance.LowLevel;
 using TerraFX.Interop.DirectX;
 using TerraFX.Interop.Windows;
 
@@ -7,9 +9,9 @@ namespace Ghost.Graphics.D3D12;
 
 internal unsafe class D3D12DebugLayer
 {
-    private readonly ComPtr<ID3D12Debug6> _d3d12Debug;
+    private UniquePtr<ID3D12Debug6> _d3d12Debug;
-    private readonly ComPtr<IDXGIDebug1> _dxgiDebug;
+    private UniquePtr<IDXGIDebug1> _dxgiDebug;
-    private readonly ComPtr<IDXGIInfoQueue> _dxgiInfoQueue;
+    private UniquePtr<IDXGIInfoQueue> _dxgiInfoQueue;
 
     public D3D12DebugLayer()
     {

Ghost.Graphics/D3D12/D3D12GraphicsEngine.cs

@@ -1,8 +1,9 @@
+using Ghost.Graphics.Contracts;
+using Ghost.Graphics.RHI;
+using Ghost.Graphics.Utilities;
 using System.Collections.Immutable;
 using System.Runtime.CompilerServices;
 
-using Ghost.Graphics.RHI;
-
 namespace Ghost.Graphics.D3D12;
 
 internal unsafe class D3D12GraphicsEngine : IGraphicsEngine
@@ -12,6 +13,7 @@ internal unsafe class D3D12GraphicsEngine : IGraphicsEngine
 #endif
 
     private readonly D3D12RenderDevice _device;
+    private readonly DxcShaderCompiler _shaderCompiler;
     private readonly D3D12DescriptorAllocator _descriptorAllocator;
     private readonly D3D12ResourceDatabase _resourceDatabase;
     private readonly D3D12PipelineLibrary _pipelineLibrary;
@@ -23,6 +25,7 @@ internal unsafe class D3D12GraphicsEngine : IGraphicsEngine
     private bool _disposed;
 
     public IRenderDevice Device => _device;
+    public IShaderCompiler ShaderCompiler => _shaderCompiler;
     public IPipelineLibrary PipelineLibrary => _pipelineLibrary;
     public IResourceDatabase ResourceDatabase => _resourceDatabase;
     public IResourceAllocator ResourceAllocator => _resourceAllocator;
@@ -34,6 +37,7 @@ internal unsafe class D3D12GraphicsEngine : IGraphicsEngine
         _debugLayer = new();
 #endif
         _device = new();
+        _shaderCompiler = new();
         _descriptorAllocator = new(_device);
 
         _resourceDatabase = new(_descriptorAllocator);

Ghost.Graphics/D3D12/D3D12Object.cs

@@ -0,0 +1,132 @@
+using Ghost.Core.Utilities;
+using Ghost.Graphics.D3D12.Utilities;
+using Ghost.Graphics.RHI;
+using Misaki.HighPerformance.LowLevel;
+using System.Runtime.CompilerServices;
+using TerraFX.Interop.DirectX;
+using TerraFX.Interop.Windows;
+
+namespace Ghost.Graphics.D3D12;
+
+internal abstract class D3D12RHIObject : IRHIObject
+{
+    public string Name
+    {
+        get; set;
+    } = string.Empty;
+}
+
+internal abstract unsafe class D3D12Object<T> : IRHIObject, IDisposable
+    where T : unmanaged, ID3D12Object.Interface
+{
+    private bool _disposed;
+    private string _name = string.Empty;
+
+    protected UniquePtr<T> nativeObject;
+
+    protected bool Disposed => _disposed;
+
+    public string Name
+    {
+        get => _name;
+        set
+        {
+            if (_name == value)
+            {
+                return;
+            }
+
+            _name = value;
+            if (nativeObject.Get() != null)
+            {
+                nativeObject.Get()->SetName(value);
+            }
+        }
+    }
+
+    ~D3D12Object()
+    {
+        Dispose(false);
+    }
+
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected void ThrowIfDisposed()
+    {
+        ObjectDisposedException.ThrowIf(_disposed, this);
+    }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    protected virtual void Dispose(bool disposing)
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        nativeObject.Dispose();
+
+        _disposed = true;
+    }
+}
+
+
+internal abstract class IUnknownObject<T> : IRHIObject, IDisposable
+    where T : unmanaged, IUnknown.Interface
+{
+    private bool _disposed;
+    private string _name = string.Empty;
+
+    protected UniquePtr<T> nativeObject;
+
+    protected bool Disposed => _disposed;
+
+    public string Name
+    {
+        get => _name;
+        set
+        {
+            if (_name == value)
+            {
+                return;
+            }
+
+            _name = value;
+        }
+    }
+
+    ~IUnknownObject()
+    {
+        Dispose(false);
+    }
+
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    protected void ThrowIfDisposed()
+    {
+        ObjectDisposedException.ThrowIf(_disposed, this);
+    }
+
+    public void Dispose()
+    {
+        Dispose(true);
+        GC.SuppressFinalize(this);
+    }
+
+    protected virtual void Dispose(bool disposing)
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        nativeObject.Dispose();
+
+        _disposed = true;
+    }
+}

Ghost.Graphics/D3D12/D3D12PipelineLibrary.cs

@@ -1,9 +1,11 @@
 using Ghost.Core;
 using Ghost.Core.Graphics;
 using Ghost.Core.Utilities;
+using Ghost.Graphics.Contracts;
 using Ghost.Graphics.Core;
 using Ghost.Graphics.D3D12.Utilities;
 using Ghost.Graphics.RHI;
+using Misaki.HighPerformance.LowLevel;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
 using Misaki.HighPerformance.LowLevel.Utilities;
@@ -17,25 +19,10 @@ using static TerraFX.Aliases.D3D12_Alias;
 
 namespace Ghost.Graphics.D3D12;
 
-internal struct D3D12GraphicsCompiledResult : IDisposable
-{
-    public CompileResult tsResult;
-    public CompileResult msResult;
-    public CompileResult psResult;
-    public CBufferInfo cbufferInfo;
-
-    public void Dispose()
-    {
-        tsResult.Dispose();
-        msResult.Dispose();
-        psResult.Dispose();
-    }
-}
-
 internal struct D3D12PipelineState : IDisposable
 {
     public D3DX12_MESH_SHADER_PIPELINE_STATE_DESC psoDesc;
-    public ComPtr<ID3D12PipelineState> pso;
+    public UniquePtr<ID3D12PipelineState> pso;
     public ShaderPassKey shaderPass;
 
     public void Dispose()
@@ -49,12 +36,11 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
     private readonly D3D12RenderDevice _device;
     private readonly D3D12ResourceDatabase _resourceDatabase;
 
-    private ComPtr<ID3D12PipelineLibrary1> _library;
+    private UniquePtr<ID3D12PipelineLibrary1> _library;
-    private ComPtr<ID3D12RootSignature> _defaultRootSignature;
+    private UniquePtr<ID3D12RootSignature> _defaultRootSignature;
 
     private readonly Dictionary<GraphicsPipelineKey, D3D12PipelineState> _pipelineCache;
-    // NOTE: This is just a temporary cache for compiled shader code. We will implement a proper disk cache later.
+    private readonly Dictionary<ShaderPassKey, CBufferInfo> _cbufferInfoCache;
-    private readonly Dictionary<ShaderPassKey, D3D12GraphicsCompiledResult> _compiledResults;
 
     public ID3D12RootSignature* DefaultRootSignature => _defaultRootSignature.Get();
 
@@ -63,13 +49,13 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
         _device = device;
         _resourceDatabase = resourceDatabase;
 
-        _pipelineCache = new();
+        _pipelineCache = new Dictionary<GraphicsPipelineKey, D3D12PipelineState>();
-        _compiledResults = new();
+        _cbufferInfoCache = new Dictionary<ShaderPassKey, CBufferInfo>();
 
         CreateDefaultRootSignature();
     }
 
-    private void CreateDefaultRootSignature()
+    private Result CreateDefaultRootSignature()
     {
         _defaultRootSignature = default;
 
@@ -154,21 +140,38 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
             Desc_1_1 = rootSignatureDesc
         };
 
-        using ComPtr<ID3DBlob> signature = default;
+        ID3DBlob* pSignature = default;
-        using ComPtr<ID3DBlob> error = default;
+        ID3DBlob* pError = default;
 
-        var serializeResult = D3D12SerializeVersionedRootSignature(&versionedDesc, signature.GetAddressOf(), error.GetAddressOf());
+        try
-        if (serializeResult.FAILED)
         {
-            var errorMsg = error.Get() != null ? Marshal.PtrToStringUTF8((nint)error.Get()->GetBufferPointer()) : "Unknown error";
+            var serializeResult = D3D12SerializeVersionedRootSignature(&versionedDesc, &pSignature, &pError);
-            throw new InvalidOperationException($"Failed to serialize default root signature: {errorMsg}");
+            if (serializeResult.FAILED)
+            {
+                var errorMsg = pError != null ? Marshal.PtrToStringUTF8((nint)pError->GetBufferPointer()) : "Unknown error";
+                return Result.Failure($"Failed to serialize default root signature: {errorMsg}");
+            }
+
+            ID3D12RootSignature* pRootSignature = default;
+            ThrowIfFailed(_device.NativeDevice->CreateRootSignature(0, pSignature->GetBufferPointer(), pSignature->GetBufferSize(),
+                __uuidof(pRootSignature), (void**)&pRootSignature));
+
+            _defaultRootSignature.Attach(pRootSignature);
+        }
+        finally
+        {
+            if (pSignature != null)
+            {
+                pSignature->Release();
+            }
+
+            if (pError != null)
+            {
+                pError->Release();
+            }
         }
 
-        ID3D12RootSignature* pRootSignature = default;
+        return Result.Success();
-        ThrowIfFailed(_device.NativeDevice->CreateRootSignature(0, signature.Get()->GetBufferPointer(), signature.Get()->GetBufferSize(),
-            __uuidof(pRootSignature), (void**)&pRootSignature));
-
-        _defaultRootSignature.Attach(pRootSignature);
     }
 
     public void InitializeLibrary(string? filePath)
@@ -208,20 +211,20 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
         fs.Write(buffer.AsSpan());
     }
 
-    private static Result<CBufferInfo> ValidateReflectionData(FullPassDescriptor descriptor, ShaderReflectionData reflectionData)
+    private static Result<CBufferInfo> ValidateReflectionData(ShaderReflectionData reflectionData)
     {
-        CBufferInfo cbufferInfo = default;
+        CBufferInfo cbufferInfo;
 
         foreach (var info in reflectionData.ResourcesBindings)
         {
             if (info.BindPoint > 3)
             {
-                return Result.Fail($"Resource binding point {info.BindPoint} is out of range. Only binding points 0-3 are supported in the current root signature.");
+                return Result.Failure($"Resource binding point {info.BindPoint} is out of range. Only binding points 0-3 are supported in the current root signature.");
             }
 
-            if (info.Type != D3D_SHADER_INPUT_TYPE.D3D_SIT_CBUFFER)
+            if (info.Type != ShaderInputType.ConstantBuffer)
             {
-                return Result.Fail($"Resource binding type {info.Type} is not supported. Only constant buffers are supported in the current root signature.");
+                return Result.Failure($"Resource binding type {info.Type} is not supported. Only constant buffers are supported in the current root signature.");
             }
 
             if (info.BindPoint == RootSignatureLayout.PER_MATERIAL_BUFFER_SLOT)
@@ -239,112 +242,11 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
             }
         }
 
-        return Result.Fail("Per-material constant buffer not found in shader reflection data.");
+        return Result.Failure("Per-material constant buffer not found in shader reflection data.");
 
         // TODO: Validate Cbuffer sizes and bindings.
     }
 
-    private static D3D12GraphicsCompiledResult CompileAndValidateFullPass(FullPassDescriptor descriptor)
-    {
-        static CompileResult CompileAndValidate(ref CompilerConfig config, FullPassDescriptor descriptor)
-        {
-            IDxcBlob* reflectionBlob = default;
-            CBufferInfo cbufferInfo = default;
-
-            try
-            {
-                // TODO: This does not include generated code. This will cause a root signature mismatch.
-                var result = D3D12ShaderCompiler.Compile(ref config, Allocator.Persistent, (void**)&reflectionBlob).GetValueOrThrow();
-                if (reflectionBlob != null)
-                {
-                    var reflection = D3D12ShaderCompiler.PerformDXCReflection(reflectionBlob).GetValueOrThrow();
-                    cbufferInfo = ValidateReflectionData(descriptor, reflection).GetValueOrThrow();
-                }
-
-                return result;
-            }
-            finally
-            {
-                if (reflectionBlob != null)
-                {
-                    reflectionBlob->Release();
-                }
-            }
-        }
-
-        CompileResult tsResult = default;
-        var tsEntry = descriptor.taskShader;
-        if (tsEntry.IsCreated)
-        {
-            var config = new CompilerConfig
-            {
-                defines = descriptor.defines.AsSpan(),
-                include = descriptor.generatedCodePath,
-                shaderPath = tsEntry.shader,
-                entryPoint = tsEntry.entry,
-                stage = ShaderStage.TaskShader,
-                tier = CompilerTier.Tier0,
-                optimizeLevel = CompilerOptimizeLevel.O3,
-                options = CompilerOption.KeepReflections,
-            };
-
-            tsResult = CompileAndValidate(ref config, descriptor);
-        }
-
-        CompileResult msResult;
-        var msEntry = descriptor.meshShader;
-        if (msEntry.IsCreated)
-        {
-            var config = new CompilerConfig
-            {
-                defines = descriptor.defines.AsSpan(),
-                include = descriptor.generatedCodePath,
-                shaderPath = msEntry.shader,
-                entryPoint = msEntry.entry,
-                stage = ShaderStage.MeshShader,
-                tier = CompilerTier.Tier0,
-                optimizeLevel = CompilerOptimizeLevel.O3,
-                options = CompilerOption.KeepReflections,
-            };
-
-            msResult = CompileAndValidate(ref config, descriptor);
-        }
-        else
-        {
-            throw new InvalidOperationException("Mesh shader expected.");
-        }
-
-        CompileResult psResult;
-        var psEntry = descriptor.pixelShader;
-        if (psEntry.IsCreated)
-        {
-            var config = new CompilerConfig
-            {
-                defines = descriptor.defines.AsSpan(),
-                include = descriptor.generatedCodePath,
-                shaderPath = psEntry.shader,
-                entryPoint = psEntry.entry,
-                stage = ShaderStage.PixelShader,
-                tier = CompilerTier.Tier0,
-                optimizeLevel = CompilerOptimizeLevel.O3,
-                options = CompilerOption.KeepReflections,
-            };
-
-            psResult = CompileAndValidate(ref config, descriptor);
-        }
-        else
-        {
-            throw new InvalidOperationException("Pixel shader expected.");
-        }
-
-        return new D3D12GraphicsCompiledResult
-        {
-            tsResult = tsResult,
-            msResult = msResult,
-            psResult = psResult
-        };
-    }
-
     private static D3D12_COMPARISON_FUNC ToD3DCompare(ZTestOptions z) => z switch
     {
         ZTestOptions.Disabled => D3D12_COMPARISON_FUNC_ALWAYS,
@@ -366,50 +268,42 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
         return D3D12Utility.D3D12_DEPTH_STENCIL_DESC_CREATE(depthEnabled, writeEnabled, cmp);
     }
 
-    private bool TryGetCompiledCache(ShaderPassKey passKey, out D3D12GraphicsCompiledResult compiled)
+    public Result<GraphicsPipelineKey> CompilePSO(ref readonly GraphicsPSODescriptor descriptor, ref readonly GraphicsCompiledResult compiled)
     {
-        return _compiledResults.TryGetValue(passKey, out compiled);
+        static Result<CBufferInfo> ValidatePassReflectionData(ref readonly GraphicsCompiledResult compiled)
-    }
-
-    private GraphicsPipelineKey CompilePSO(ref readonly GraphicsPSODescriptor descriptor, ref readonly D3D12GraphicsCompiledResult compiled)
-    {
-        var rtvCount = (uint)Math.Min(descriptor.RtvFormats.Length, D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT);
-
-        var desc = new D3DX12_MESH_SHADER_PIPELINE_STATE_DESC
         {
-            pRootSignature = _defaultRootSignature.Get(),
+            var msr = ValidateReflectionData(compiled.msResult.reflectionData);
-            MS = new D3D12_SHADER_BYTECODE(compiled.msResult.bytecode.GetUnsafePtr(), (nuint)compiled.msResult.bytecode.Count),
+            if (msr.IsFailure)
-            PS = new D3D12_SHADER_BYTECODE(compiled.psResult.bytecode.GetUnsafePtr(), (nuint)compiled.psResult.bytecode.Count),
-            PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE,
-            SampleMask = UINT32_MAX,
-            SampleDesc = new DXGI_SAMPLE_DESC(1, 0),
-            NumRenderTargets = rtvCount,
-            DSVFormat = descriptor.DsvFormat.ToDXGIFormat(),
-            DepthStencilState = BuildDepthStencil(descriptor.ZTest, descriptor.ZWrite),
-            NodeMask = 0,
-            Flags = D3D12_PIPELINE_STATE_FLAG_NONE,
-
-            BlendState = descriptor.Blend switch
             {
-                BlendOptions.Opaque => D3D12Utility.D3D12_BLEND_DESC_OPAQUE,
+                return Result.Failure("Validation of mesh shader reflection data failed: " + msr.Message);
-                BlendOptions.Alpha => D3D12Utility.D3D12_BLEND_DESC_ALPHA_BLEND,
+            }
-                BlendOptions.Additive => D3D12Utility.D3D12_BLEND_DESC_ADDITIVE,
-                BlendOptions.Multiply => D3D12Utility.D3D12_BLEND_DESC_MULTIPLY,
-                BlendOptions.PremultipliedAlpha => D3D12Utility.D3D12_BLEND_DESC_PREMULTIPLIED,
-                _ => D3D12Utility.D3D12_BLEND_DESC_OPAQUE
-            },
-            RasterizerState = descriptor.Cull switch
-            {
-                CullOptions.Off => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_NONE,
-                CullOptions.Front => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_CLOCKWISE,
-                CullOptions.Back => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_COUNTER_CLOCKWISE,
-                _ => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_NONE
-            },
-        };
 
-        if (compiled.tsResult.IsCreated)
+            var psr = ValidateReflectionData(compiled.psResult.reflectionData);
-        {
+            if (psr.IsFailure)
-            desc.AS = new D3D12_SHADER_BYTECODE(compiled.tsResult.bytecode.GetUnsafePtr(), (nuint)compiled.tsResult.bytecode.Count);
+            {
+                return Result.Failure("Validation of pixel shader reflection data failed: " + psr.Message);
+            }
+
+            if (msr.Value != psr.Value)
+            {
+                return Result.Failure("Mesh shader and pixel shader constant buffer layouts do not match.");
+            }
+
+            if (compiled.tsResult.IsCreated)
+            {
+                var tsr = ValidateReflectionData(compiled.tsResult.reflectionData);
+                if (tsr.IsFailure)
+                {
+                    return Result.Failure("Validation of task shader reflection data failed: " + tsr.Message);
+                }
+
+                if (tsr.Value != msr.Value)
+                {
+                    return Result.Failure("Task shader and mesh shader constant buffer layouts do not match.");
+                }
+            }
+
+            return psr.Value;
         }
 
         var hash = new GraphicsPipelineHash
@@ -419,18 +313,67 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
             DsvFormat = descriptor.DsvFormat,
         };
 
+        var rtvCount = (uint)Math.Min(descriptor.RtvFormats.Length, D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT);
+
         for (var i = 0; i < rtvCount && i < D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
         {
-            desc.RTVFormats[i] = descriptor.RtvFormats[i].ToDXGIFormat();
-            desc.BlendState.RenderTarget[i].RenderTargetWriteMask = (byte)(descriptor.ColorMask & 0x0F);
             hash.RtvFormats[i] = descriptor.RtvFormats[i];
         }
 
         var key = hash.GetKey();
-        ref var existing = ref CollectionsMarshal.GetValueRefOrAddDefault(_pipelineCache, key, out var exists);
+
-        if (!exists)
+        if (!_pipelineCache.ContainsKey(key))
         {
-            existing.psoDesc = desc;
+            var result = ValidatePassReflectionData(in compiled);
+            if (result.IsFailure)
+            {
+                return Result.Failure(result.Message);
+            }
+
+            _cbufferInfoCache[descriptor.PassId] = result.Value;
+
+            var desc = new D3DX12_MESH_SHADER_PIPELINE_STATE_DESC
+            {
+                pRootSignature = _defaultRootSignature.Get(),
+                MS = new D3D12_SHADER_BYTECODE(compiled.msResult.bytecode.GetUnsafePtr(), (nuint)compiled.msResult.bytecode.Count),
+                PS = new D3D12_SHADER_BYTECODE(compiled.psResult.bytecode.GetUnsafePtr(), (nuint)compiled.psResult.bytecode.Count),
+                PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_TRIANGLE,
+                SampleMask = UINT32_MAX,
+                SampleDesc = new DXGI_SAMPLE_DESC(1, 0),
+                NumRenderTargets = rtvCount,
+                DSVFormat = descriptor.DsvFormat.ToDXGIFormat(),
+                DepthStencilState = BuildDepthStencil(descriptor.ZTest, descriptor.ZWrite),
+                NodeMask = 0,
+                Flags = D3D12_PIPELINE_STATE_FLAG_NONE,
+
+                BlendState = descriptor.Blend switch
+                {
+                    BlendOptions.Opaque => D3D12Utility.D3D12_BLEND_DESC_OPAQUE,
+                    BlendOptions.Alpha => D3D12Utility.D3D12_BLEND_DESC_ALPHA_BLEND,
+                    BlendOptions.Additive => D3D12Utility.D3D12_BLEND_DESC_ADDITIVE,
+                    BlendOptions.Multiply => D3D12Utility.D3D12_BLEND_DESC_MULTIPLY,
+                    BlendOptions.PremultipliedAlpha => D3D12Utility.D3D12_BLEND_DESC_PREMULTIPLIED,
+                    _ => D3D12Utility.D3D12_BLEND_DESC_OPAQUE
+                },
+                RasterizerState = descriptor.Cull switch
+                {
+                    CullOptions.Off => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_NONE,
+                    CullOptions.Front => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_CLOCKWISE,
+                    CullOptions.Back => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_COUNTER_CLOCKWISE,
+                    _ => D3D12Utility.D3D12_RASTERIZER_DESC_CULL_NONE
+                },
+            };
+
+            if (compiled.tsResult.IsCreated)
+            {
+                desc.AS = new D3D12_SHADER_BYTECODE(compiled.tsResult.bytecode.GetUnsafePtr(), (nuint)compiled.tsResult.bytecode.Count);
+            }
+
+            for (var i = 0; i < rtvCount && i < D3D12_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
+            {
+                desc.RTVFormats[i] = descriptor.RtvFormats[i].ToDXGIFormat();
+                desc.BlendState.RenderTarget[i].RenderTargetWriteMask = (byte)(descriptor.ColorMask & 0x0F);
+            }
 
             var meshStream = new CD3DX12_PIPELINE_MESH_STATE_STREAM(in desc);
             var streamDesc = new D3D12_PIPELINE_STATE_STREAM_DESC
@@ -443,7 +386,11 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
 
             var pKeyStr = stackalloc char[GraphicsPipelineKey.KEY_STRING_LENGTH];
             var keySpan = new Span<char>(pKeyStr, GraphicsPipelineKey.KEY_STRING_LENGTH);
-            key.GetString(keySpan).ThrowIfFailed();
+            var kr = key.GetString(keySpan);
+            if (kr.IsFailure)
+            {
+                return kr;
+            }
 
             var hr = _library.Get()->LoadPipeline(pKeyStr, &streamDesc, __uuidof(pPipelineState), (void**)&pPipelineState);
             if (hr == E.E_INVALIDARG)
@@ -457,77 +404,35 @@ internal unsafe class D3D12PipelineLibrary : IPipelineLibrary, IDisposable
                 ThrowIfFailed(hr);
             }
 
-            existing.pso.Attach(pPipelineState);
+            D3D12PipelineState pso = default;
+            pso.shaderPass = descriptor.PassId;
+            pso.psoDesc = desc;
+            pso.pso.Attach(pPipelineState);
+
+            _pipelineCache[key] = pso;
         }
 
         return key;
     }
 
-    public GraphicsPipelineKey CompilePassPSO(IPassDescriptor descriptor, ReadOnlySpan<TextureFormat> rtvs, TextureFormat dsv)
+    public Result<CBufferInfo, ResultStatus> GetCBufferInfo(ShaderPassKey passId)
     {
-        GraphicsPipelineKey key = default;
+        if (_cbufferInfoCache.TryGetValue(passId, out var cbufferInfo))
-
-        var passKey = new ShaderPassKey(descriptor.Identifier);
-        var hasCompiledCache = TryGetCompiledCache(passKey, out var compiled);
-
-        switch (descriptor)
         {
-            case FullPassDescriptor fullPass:
+            return Result.Create(cbufferInfo, ResultStatus.Success);
-                if (!hasCompiledCache)
-                {
-                    compiled = CompileAndValidateFullPass(fullPass);
-                }
-
-                var psoDes = new GraphicsPSODescriptor
-                {
-                    PassId = new ShaderPassKey(fullPass.Identifier),
-                    ZTest = fullPass.localPipeline.zTest,
-                    ZWrite = fullPass.localPipeline.zWrite,
-                    Cull = fullPass.localPipeline.cull,
-                    Blend = fullPass.localPipeline.blend,
-                    ColorMask = fullPass.localPipeline.colorMask,
-
-                    RtvFormats = rtvs,
-                    DsvFormat = dsv,
-                };
-
-                key = CompilePSO(in psoDes, in compiled);
-                break;
-
-            // Do we need to support other pass types?
-            case FallbackPassDescriptor:
-                if (!hasCompiledCache)
-                {
-                    throw new ArgumentException("FallbackPassDescriptor is not supported for PSO compilation. There may be some inheritance dependency issues.");
-                }
-
-                break;
-
-            default:
-                break;
         }
 
-        return key;
+        return Result.Create(default(CBufferInfo), ResultStatus.NotFound);
     }
 
-    public Result<Ptr<ID3D12PipelineState>> GetGraphicsPSO(GraphicsPipelineKey key)
+    public Result<SharedPtr<ID3D12PipelineState>, ResultStatus> GetGraphicsPSO(GraphicsPipelineKey key)
     {
         if (_pipelineCache.TryGetValue(key, out var cacheEntry))
         {
-            return new Ptr<ID3D12PipelineState>(cacheEntry.pso.Get());
+            return Result.Create(new SharedPtr<ID3D12PipelineState>(cacheEntry.pso.Get()), ResultStatus.Success);
         }
 
-        return Result.Fail("Pipeline state not found in cache.");
+        return Result.Create(default(SharedPtr<ID3D12PipelineState>), ResultStatus.NotFound);
-    }
-
-    public Result<CBufferInfo> GetCBufferInfo(ShaderPassKey key)
-    {
-        if (_compiledResults.TryGetValue(key, out var compiled))
-        {
-            return compiled.cbufferInfo;
-        }
-
-        return Result.Fail("Compiled shader not found in cache.");
     }
 
     public void Dispose()

Ghost.Graphics/D3D12/D3D12RHIObject.cs

@@ -1,67 +0,0 @@
-using Ghost.Graphics.D3D12.Utilities;
-using Ghost.Graphics.RHI;
-using Misaki.HighPerformance.LowLevel;
-using System.Runtime.CompilerServices;
-using TerraFX.Interop.DirectX;
-using TerraFX.Interop.Windows;
-
-namespace Ghost.Graphics.D3D12;
-
-internal abstract unsafe class D3D12RHIObject<T> : IRHIObject, IDisposable
-    where T : unmanaged, ID3D12Object.Interface
-{
-    private bool _disposed;
-    private string _name = string.Empty;
-
-    protected ComPtr<T> nativeObject;
-
-    protected bool IsDisposed => _disposed;
-
-    public string Name
-    {
-        get => _name;
-        set
-        {
-            if (_name == value)
-            {
-                return;
-            }
-
-            _name = value;
-            if (nativeObject.Get() != null)
-            {
-                nativeObject.Get()->SetName(value);
-            }
-        }
-    }
-
-    ~D3D12RHIObject()
-    {
-        Dispose(false);
-    }
-
-
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    protected void ThrowIfDisposed()
-    {
-        ObjectDisposedException.ThrowIf(_disposed, this);
-    }
-
-    public void Dispose()
-    {
-        Dispose(true);
-        GC.SuppressFinalize(this);
-    }
-
-    protected virtual void Dispose(bool disposing)
-    {
-        if (_disposed)
-        {
-            return;
-        }
-
-        MemoryLeakException.ThrowIfRefCountNonZero(nativeObject.Reset());
-
-        _disposed = true;
-    }
-}

Ghost.Graphics/D3D12/D3D12RenderDevice.cs

@@ -1,9 +1,10 @@
 using Ghost.Core.Utilities;
 using Ghost.Graphics.RHI;
-using System.Runtime.Versioning;
+using Misaki.HighPerformance.LowLevel;
 using TerraFX.Interop.DirectX;
 using TerraFX.Interop.Windows;
 using static TerraFX.Aliases.D3D_Alias;
+using static TerraFX.Aliases.D3D12_Alias;
 using static TerraFX.Aliases.DXGI_Alias;
 
 namespace Ghost.Graphics.D3D12;
@@ -11,33 +12,30 @@ namespace Ghost.Graphics.D3D12;
 /// <summary>
 /// D3D12 implementation of the render device interface
 /// </summary>
-internal unsafe class D3D12RenderDevice : IRenderDevice
+internal unsafe class D3D12RenderDevice : D3D12Object<ID3D12Device14>, IRenderDevice
 {
-    private ComPtr<IDXGIFactory7> _dxgiFactory;
+    private UniquePtr<IDXGIFactory7> _dxgiFactory;
-    private ComPtr<ID3D12Device14> _device;
+    private UniquePtr<IDXGIAdapter1> _adapter;
-    private ComPtr<IDXGIAdapter1> _adapter;
 
     private readonly D3D12CommandQueue _graphicsQueue;
     private readonly D3D12CommandQueue _computeQueue;
     private readonly D3D12CommandQueue _copyQueue;
 
-    private bool _disposed;
-
     public ICommandQueue GraphicsQueue => _graphicsQueue;
     public ICommandQueue ComputeQueue => _computeQueue;
     public ICommandQueue CopyQueue => _copyQueue;
 
-    public ID3D12Device14* NativeDevice => _device.Get();
     public IDXGIFactory7* DXGIFactory => _dxgiFactory.Get();
+    public ID3D12Device14* NativeDevice => nativeObject.Get();
     public IDXGIAdapter1* Adapter => _adapter.Get();
 
     public D3D12RenderDevice()
     {
         InitializeDevice();
 
-        _graphicsQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Graphics);
+        _graphicsQueue = new D3D12CommandQueue(nativeObject.Get(), CommandQueueType.Graphics);
-        _computeQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Compute);
+        _computeQueue = new D3D12CommandQueue(nativeObject.Get(), CommandQueueType.Compute);
-        _copyQueue = new D3D12CommandQueue(_device.Get(), CommandQueueType.Copy);
+        _copyQueue = new D3D12CommandQueue(nativeObject.Get(), CommandQueueType.Copy);
     }
 
     ~D3D12RenderDevice()
@@ -60,7 +58,7 @@ internal unsafe class D3D12RenderDevice : IRenderDevice
         IDXGIAdapter1* pAdapter = default;
 
         for (uint adapterIndex = 0;
-            _dxgiFactory.Get()->EnumAdapterByGpuPreference(adapterIndex, DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE, __uuidof<IDXGIAdapter1>(), (void**)&pAdapter).SUCCEEDED;
+            _dxgiFactory.Get()->EnumAdapterByGpuPreference(adapterIndex, DXGI_GPU_PREFERENCE_HIGH_PERFORMANCE, __uuidof(pAdapter), (void**)&pAdapter).SUCCEEDED;
             adapterIndex++)
         {
             DXGI_ADAPTER_DESC1 desc = default;
@@ -84,30 +82,77 @@ internal unsafe class D3D12RenderDevice : IRenderDevice
 
         if (pDevice == null)
         {
-            pAdapter->Release(); // Dispose the last adapter we tried. If the operation succeeded, we would have moved it.
+            pAdapter->Release(); // Dispose the last adapter we tried.
             throw new PlatformNotSupportedException("Cannot create ID3D12Device with feature level 12.0");
         }
 
-        _device.Attach(pDevice);
+        nativeObject.Attach(pDevice);
     }
 
-    public void Dispose()
+    public FeatureSupport GetFeatureSupport()
     {
-        if (_disposed)
+        ThrowIfDisposed();
+
+        FeatureSupport support = FeatureSupport.None;
+
+        D3D12_FEATURE_DATA_D3D12_OPTIONS options = default;
+        if (nativeObject.Get()->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS, &options, (uint)sizeof(D3D12_FEATURE_DATA_D3D12_OPTIONS)).SUCCEEDED)
+        {
+            if (options.ResourceBindingTier == D3D12_RESOURCE_BINDING_TIER_3)
+            {
+                support |= FeatureSupport.BindlessResources;
+            }
+        }
+
+        D3D12_FEATURE_DATA_D3D12_OPTIONS5 options5 = default;
+        if (nativeObject.Get()->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS5, &options5, (uint)sizeof(D3D12_FEATURE_DATA_D3D12_OPTIONS5)).SUCCEEDED)
+        {
+            if (options5.RaytracingTier != D3D12_RAYTRACING_TIER_NOT_SUPPORTED)
+            {
+                support |= FeatureSupport.RayTracing;
+            }
+        }
+
+        D3D12_FEATURE_DATA_D3D12_OPTIONS6 options6 = default;
+        if (nativeObject.Get()->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS6, &options6, (uint)sizeof(D3D12_FEATURE_DATA_D3D12_OPTIONS6)).SUCCEEDED)
+        {
+            if (options6.VariableShadingRateTier != D3D12_VARIABLE_SHADING_RATE_TIER_NOT_SUPPORTED)
+            {
+                support |= FeatureSupport.VariableRateShading;
+            }
+        }
+
+        D3D12_FEATURE_DATA_D3D12_OPTIONS7 options7 = default;
+        if (nativeObject.Get()->CheckFeatureSupport(D3D12_FEATURE_D3D12_OPTIONS7, &options7, (uint)sizeof(D3D12_FEATURE_DATA_D3D12_OPTIONS7)).SUCCEEDED)
+        {
+            if (options7.MeshShaderTier != D3D12_MESH_SHADER_TIER_NOT_SUPPORTED)
+            {
+                support |= FeatureSupport.MeshShaders;
+            }
+
+            if (options7.SamplerFeedbackTier != D3D12_SAMPLER_FEEDBACK_TIER_NOT_SUPPORTED)
+            {
+                support |= FeatureSupport.SamplerFeedback;
+            }
+        }
+
+        return support;
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+        if (Disposed)
         {
             return;
         }
 
-        _graphicsQueue?.Dispose();
+        _graphicsQueue.Dispose();
-        _computeQueue?.Dispose();
+        _computeQueue.Dispose();
-        _copyQueue?.Dispose();
+        _copyQueue.Dispose();
 
-        _device.Reset();
         _dxgiFactory.Dispose();
         _adapter.Dispose();
 
-        _disposed = true;
+        base.Dispose(disposing);
-
-        GC.SuppressFinalize(this);
     }
 }

Ghost.Graphics/D3D12/D3D12ResourceAllocator.cs

@@ -589,9 +589,9 @@ internal sealed unsafe partial class D3D12ResourceAllocator
 // TODO: Dedicated pool for copy, render graph, and persistent resources
 
 // TODO: Thread safety for resource allocator
-// A common solution is to use ticket. Each allocation request create a ticket and put it into a thread-safe queue. A dedicated thread process the queue and fulfill the requests.
+// A common solution is to use ticket. Each pAllocation request create a ticket and put it into a thread-safe queue. A dedicated thread process the queue and fulfill the requests.
 
-internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator, IDisposable
+internal sealed unsafe partial class D3D12ResourceAllocator : IUnknownObject<D3D12MA_Allocator>, IResourceAllocator
 {
     private readonly IFenceSynchronizer _fenceSynchronizer;
     private readonly D3D12RenderDevice _device;
@@ -599,11 +599,8 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
     private readonly D3D12ResourceDatabase _resourceDatabase;
     private readonly D3D12PipelineLibrary _pipelineLibrary;
 
-    private ComPtr<D3D12MA_Allocator> _allocator;
     private UnsafeQueue<Handle<GPUResource>> _temResources;
 
-    private bool _disposed;
-
     public D3D12ResourceAllocator(
         IFenceSynchronizer fenceSynchronizer,
         D3D12RenderDevice device,
@@ -620,7 +617,7 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
         D3D12MA_Allocator* pAllocator = default;
         ThrowIfFailed(D3D12MA_CreateAllocator(&desc, &pAllocator));
-        _allocator.Attach(pAllocator);
+        nativeObject.Attach(pAllocator);
 
         _fenceSynchronizer = fenceSynchronizer;
         _device = device;
@@ -637,7 +634,7 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    private Handle<GPUResource> TrackResource(ComPtr<D3D12MA_Allocation> allocation, D3D12_RESOURCE_STATES state, ResourceViewGroup resourceDescriptor, ResourceDesc desc, bool isTemp)
+    private Handle<GPUResource> TrackResource(D3D12MA_Allocation* allocation, D3D12_RESOURCE_STATES state, ResourceViewGroup resourceDescriptor, ResourceDesc desc, bool isTemp)
     {
         var handle = _resourceDatabase.AddResource(allocation, _fenceSynchronizer.CPUFenceValue, D3D12StatesToRHIState(state), resourceDescriptor, desc);
 
@@ -651,6 +648,8 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
     public Handle<Texture> CreateTexture(ref readonly TextureDesc desc, bool isTemp = false)
     {
+        ThrowIfDisposed();
+
         CheckTexture2DSize(desc.Width, desc.Height);
 
         var d3d12Format = ConvertTextureFormat(desc.Format);
@@ -706,8 +705,8 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
         var initialState = DetermineInitialTextureState(desc.Usage);
 
-        ComPtr<D3D12MA_Allocation> allocation = default;
+        D3D12MA_Allocation* pAllocation = default;
-        ThrowIfFailed(_allocator.Get()->CreateResource(&allocationDesc, &resourceDesc, initialState, null, allocation.GetAddressOf(), Win32Utility.IID_NULL, null));
+        ThrowIfFailed(nativeObject.Get()->CreateResource(&allocationDesc, &resourceDesc, initialState, null, &pAllocation, Win32Utility.IID_NULL, null));
 
         var resourceDescriptor = ResourceViewGroup.Invalid;
         if (desc.Usage.HasFlag(TextureUsage.ShaderResource))
@@ -716,51 +715,54 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.srv);
 
             var isCubeMap = desc.Dimension == TextureDimension.TextureCube || desc.Dimension == TextureDimension.TextureCubeArray;
-            var srvDesc = CreateTextureSrvDesc(allocation.Get()->GetResource(), mipLevels, desc.Slice, isCubeMap);
+            var srvDesc = CreateTextureSrvDesc(pAllocation->GetResource(), mipLevels, desc.Slice, isCubeMap);
 
-            _device.NativeDevice->CreateShaderResourceView(allocation.Get()->GetResource(), &srvDesc, cpuHandle);
+            _device.NativeDevice->CreateShaderResourceView(pAllocation->GetResource(), &srvDesc, cpuHandle);
         }
 
         if (desc.Usage.HasFlag(TextureUsage.RenderTarget))
         {
             resourceDescriptor.rtv = _descriptorAllocator.AllocateRTV(isTemp);
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.rtv);
-            var rtvDesc = CreateRtvDesc(allocation.Get()->GetResource());
+            var rtvDesc = CreateRtvDesc(pAllocation->GetResource());
 
-            _device.NativeDevice->CreateRenderTargetView(allocation.Get()->GetResource(), &rtvDesc, cpuHandle);
+            _device.NativeDevice->CreateRenderTargetView(pAllocation->GetResource(), &rtvDesc, cpuHandle);
         }
 
         if (desc.Usage.HasFlag(TextureUsage.DepthStencil))
         {
             resourceDescriptor.dsv = _descriptorAllocator.AllocateDSV(isTemp);
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.dsv);
-            var dsvDesc = CreateDsvDesc(allocation.Get()->GetResource());
+            var dsvDesc = CreateDsvDesc(pAllocation->GetResource());
 
-            _device.NativeDevice->CreateDepthStencilView(allocation.Get()->GetResource(), &dsvDesc, cpuHandle);
+            _device.NativeDevice->CreateDepthStencilView(pAllocation->GetResource(), &dsvDesc, cpuHandle);
         }
 
         if (desc.Usage.HasFlag(TextureUsage.UnorderedAccess))
         {
             resourceDescriptor.uav = _descriptorAllocator.AllocateCbvSrvUav(isTemp);
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.uav);
-            var uavDesc = CreateTextureUavDesc(allocation.Get()->GetResource());
+            var uavDesc = CreateTextureUavDesc(pAllocation->GetResource());
 
-            _device.NativeDevice->CreateUnorderedAccessView(allocation.Get()->GetResource(), null, &uavDesc, cpuHandle);
+            _device.NativeDevice->CreateUnorderedAccessView(pAllocation->GetResource(), null, &uavDesc, cpuHandle);
         }
 
-        var handle = TrackResource(allocation, initialState, resourceDescriptor, ResourceDesc.Texture(desc), isTemp);
+        var handle = TrackResource(pAllocation, initialState, resourceDescriptor, ResourceDesc.Texture(desc), isTemp);
 
         return handle.AsTexture();
     }
 
     public Handle<Texture> CreateRenderTarget(ref readonly RenderTargetDesc desc, bool isTemp = false)
     {
+        ThrowIfDisposed();
+
         var textureDesc = desc.ToTextureDescripton();
         return CreateTexture(ref textureDesc, isTemp);
     }
 
     public Handle<GraphicsBuffer> CreateBuffer(ref readonly BufferDesc desc, bool isTemp = false)
     {
+        ThrowIfDisposed();
         CheckBufferSize(desc.Size);
 
         var resourceDescription = D3D12_RESOURCE_DESC.Buffer(desc.Size, ConvertBufferUsage(desc.Usage));
@@ -778,11 +780,11 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
         var initialState = DetermineInitialBufferState(desc.Usage, desc.MemoryType);
 
-        ComPtr<D3D12MA_Allocation> allocation = default;
+        D3D12MA_Allocation* pAllocation = default;
-        ThrowIfFailed(_allocator.Get()->CreateResource(&allocationDesc, &resourceDescription, initialState, null, allocation.GetAddressOf(), Win32Utility.IID_NULL, null));
+        ThrowIfFailed(nativeObject.Get()->CreateResource(&allocationDesc, &resourceDescription, initialState, null, &pAllocation, Win32Utility.IID_NULL, null));
 
         var resourceDescriptor = ResourceViewGroup.Invalid;
-        var pResource = allocation.Get()->GetResource();
+        var pResource = pAllocation->GetResource();
 
         if (desc.Usage.HasFlag(BufferUsage.Constant))
         {
@@ -803,7 +805,7 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
         {
             resourceDescriptor.srv = _descriptorAllocator.AllocateCbvSrvUav(isTemp);
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.srv);
-            var srvDesc = CreateBufferSrvDesc(allocation.Get()->GetResource(), desc.Stride, isRaw);
+            var srvDesc = CreateBufferSrvDesc(pAllocation->GetResource(), desc.Stride, isRaw);
 
             _device.NativeDevice->CreateShaderResourceView(pResource, &srvDesc, cpuHandle);
         }
@@ -812,17 +814,19 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
         {
             resourceDescriptor.uav = _descriptorAllocator.AllocateCbvSrvUav(isTemp);
             var cpuHandle = _descriptorAllocator.GetCpuHandle(resourceDescriptor.uav);
-            var uavDesc = CreateBufferUavDesc(allocation.Get()->GetResource(), desc.Stride, isRaw);
+            var uavDesc = CreateBufferUavDesc(pAllocation->GetResource(), desc.Stride, isRaw);
 
             _device.NativeDevice->CreateUnorderedAccessView(pResource, null, &uavDesc, cpuHandle);
         }
 
-        var handle = TrackResource(allocation, initialState, resourceDescriptor, ResourceDesc.Buffer(desc), isTemp);
+        var handle = TrackResource(pAllocation, initialState, resourceDescriptor, ResourceDesc.Buffer(desc), isTemp);
         return handle.AsGraphicsBuffer();
     }
 
     public Handle<GraphicsBuffer> CreateUploadBuffer(ulong size, bool isTemp = true)
     {
+        ThrowIfDisposed();
+
         var desc = new BufferDesc
         {
             Size = size,
@@ -835,6 +839,8 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
     public Handle<Mesh> CreateMesh(UnsafeList<Vertex> vertices, UnsafeList<uint> indices)
     {
+        ThrowIfDisposed();
+
         var vertexBufferDesc = new BufferDesc
         {
             Size = (uint)(vertices.Count * Unsafe.SizeOf<Vertex>()),
@@ -867,14 +873,18 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
     public Handle<Material> CreateMaterial(Identifier<Shader> shader)
     {
+        ThrowIfDisposed();
+
         var material = new Material();
         material.SetShader(shader, this, _resourceDatabase);
 
         return _resourceDatabase.AddMaterial(ref material);
     }
 
-    public Identifier<Shader> CreateShader(ShaderDescriptor descriptor)
+    public Identifier<Shader> CreateGraphicsShader(ShaderDescriptor descriptor)
     {
+        ThrowIfDisposed();
+
         var shader = new Shader(descriptor);
         foreach (var pass in descriptor.passes)
         {
@@ -883,9 +893,14 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
                 continue;
             }
 
-            var passKey = new ShaderPassKey(fullPass.uniqueIdentifier);
+            var passKey = new ShaderPassKey(fullPass.Identifier);
-            var cbufferInfo = _pipelineLibrary.GetCBufferInfo(passKey).GetValueOrThrow();
+            var cbr = _pipelineLibrary.GetCBufferInfo(passKey);
-            _resourceDatabase.AddShaderPass(new ShaderPassKey(fullPass.uniqueIdentifier), new ShaderPass(cbufferInfo));
+            if (cbr.Status != ResultStatus.Success)
+            {
+                return Identifier<Shader>.Invalid;
+            }
+
+            _resourceDatabase.AddShaderPass(passKey, new ShaderPass(cbr.Value));
         }
 
         return _resourceDatabase.AddShader(shader);
@@ -893,6 +908,8 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
 
     public void ReleaseTempResources()
     {
+        ThrowIfDisposed();
+
         while (_temResources.Count > 0)
         {
             var handle = _temResources.Peek();
@@ -916,9 +933,9 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
         }
     }
 
-    public void Dispose()
+    protected override void Dispose(bool disposing)
     {
-        if (_disposed)
+        if (Disposed)
         {
             return;
         }
@@ -936,9 +953,7 @@ internal sealed unsafe partial class D3D12ResourceAllocator : IResourceAllocator
         }
 
         _temResources.Dispose();
-        _allocator.Dispose();
 
-        _disposed = true;
+        base.Dispose(disposing);
-        GC.SuppressFinalize(this);
     }
 }

Ghost.Graphics/D3D12/D3D12ResourceDatabase.cs

@@ -2,6 +2,7 @@ using Ghost.Core;
 using Ghost.Graphics.Core;
 using Ghost.Graphics.RHI;
 using Misaki.HighPerformance.Collections;
+using Misaki.HighPerformance.LowLevel;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
 using System.Diagnostics;
@@ -19,16 +20,16 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
         public struct ResourceUnion
         {
             [FieldOffset(0)]
-            public ComPtr<D3D12MA_Allocation> allocation;
+            public UniquePtr<D3D12MA_Allocation> allocation;
             [FieldOffset(0)]
-            public ComPtr<ID3D12Resource> resource;
+            public UniquePtr<ID3D12Resource> resource;
 
-            public ResourceUnion(ComPtr<D3D12MA_Allocation> allocation)
+            public ResourceUnion(D3D12MA_Allocation* allocation)
             {
                 this.allocation = allocation;
             }
 
-            public ResourceUnion(ComPtr<ID3D12Resource> resource)
+            public ResourceUnion(ID3D12Resource* resource)
             {
                 this.resource = resource;
             }
@@ -44,7 +45,7 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
         public readonly bool Allocated => isExternal ? resourceUnion.resource.Get() != null : resourceUnion.allocation.Get() != null;
         public readonly ID3D12Resource* ResourcePtr => isExternal ? resourceUnion.resource.Get() : resourceUnion.allocation.Get()->GetResource();
 
-        public ResourceRecord(ComPtr<D3D12MA_Allocation> allocation, uint cpuFenceValue, ResourceState state, ResourceViewGroup resourceDescriptor, ResourceDesc desc)
+        public ResourceRecord(D3D12MA_Allocation* allocation, uint cpuFenceValue, ResourceState state, ResourceViewGroup resourceDescriptor, ResourceDesc desc)
         {
             this.resourceUnion = new ResourceUnion(allocation);
             this.isExternal = false;
@@ -55,7 +56,7 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
             this.desc = desc;
         }
 
-        public ResourceRecord(ComPtr<ID3D12Resource> resource, ResourceState state)
+        public ResourceRecord(ID3D12Resource* resource, ResourceState state)
         {
             this.resourceUnion = new ResourceUnion(resource);
             this.isExternal = true;
@@ -63,7 +64,7 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
             this.viewGroup = default;
             this.cpuFenceValue = ~0u;
             this.state = state;
-            this.desc = ResourceDesc.FromD3D12(resource.Get()->GetDesc());
+            this.desc = ResourceDesc.FromD3D12(resource->GetDesc());
         }
 
         public uint Release(D3D12DescriptorAllocator descriptorAllocator)
@@ -73,11 +74,11 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
             {
                 if (isExternal)
                 {
-                    refCount = resourceUnion.resource.Reset();
+                    refCount = resourceUnion.resource.Get()->Release();
                 }
                 else
                 {
-                    refCount = resourceUnion.allocation.Reset();
+                    refCount = resourceUnion.allocation.Get()->Release();
                 }
 
                 resourceUnion = default;
@@ -131,11 +132,11 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
         resource = default!;
     }
 
-    public Handle<GPUResource> ImportExternalResource(ComPtr<ID3D12Resource> resource, ResourceState initialState, string? name = null)
+    public unsafe Handle<GPUResource> ImportExternalResource(ID3D12Resource* pResource, ResourceState initialState, string? name = null)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
 
-        var id = _resources.Add(new ResourceRecord(resource, initialState), out var generation);
+        var id = _resources.Add(new ResourceRecord(pResource, initialState), out var generation);
         var handle = new Handle<GPUResource>(id, generation);
 
 #if DEBUG || GHOST_EDITOR
@@ -148,7 +149,7 @@ internal class D3D12ResourceDatabase : IResourceDatabase, IDisposable
         return handle;
     }
 
-    public Handle<GPUResource> AddResource(ComPtr<D3D12MA_Allocation> allocation, uint cpuFenceValue, ResourceState initialState, ResourceViewGroup resourceDescriptor, ResourceDesc desc, string? name = null)
+    public unsafe Handle<GPUResource> AddResource(D3D12MA_Allocation* allocation, uint cpuFenceValue, ResourceState initialState, ResourceViewGroup resourceDescriptor, ResourceDesc desc, string? name = null)
     {
         ObjectDisposedException.ThrowIf(_disposed, this);
 

Ghost.Graphics/D3D12/D3D12SwapChain.cs

@@ -17,13 +17,11 @@ namespace Ghost.Graphics.D3D12;
 /// <summary>
 /// D3D12 implementation of swap chain interface
 /// </summary>
-internal unsafe class D3D12SwapChain : ISwapChain
+internal unsafe class D3D12SwapChain : IUnknownObject<IDXGISwapChain4>, ISwapChain
 {
     private readonly D3D12ResourceDatabase _resourceDatabase;
 
-    private ComPtr<IDXGISwapChain4> _swapChain;
     private UnsafeArray<Handle<Texture>> _backBuffers;
-    private bool _disposed;
 
     public uint Width
     {
@@ -109,37 +107,42 @@ internal unsafe class D3D12SwapChain : ISwapChain
         pTempSwapChain->QueryInterface(__uuidof(pSwapChain), (void**)&pSwapChain);
         pTempSwapChain->Release();
 
-        _swapChain.Attach(pSwapChain);
+        nativeObject.Attach(pSwapChain);
     }
 
     private void CreateBackBuffers()
     {
         for (uint i = 0; i < BufferCount; i++)
         {
-            ComPtr<ID3D12Resource> backBuffer = default;
+            ID3D12Resource* pBackBuffer = default;
-            _swapChain.Get()->GetBuffer(i, backBuffer.IID(), backBuffer.PPV());
+            nativeObject.Get()->GetBuffer(i, __uuidof(pBackBuffer), (void**)&pBackBuffer);
-            backBuffer.Get()->SetName($"SwapChain_BackBuffer_{i}");
+            pBackBuffer->SetName($"SwapChain_BackBuffer_{i}");
 
-            _backBuffers[i] = _resourceDatabase.ImportExternalResource(backBuffer.Move(), ResourceState.Present).AsTexture();
+            _backBuffers[i] = _resourceDatabase.ImportExternalResource(pBackBuffer, ResourceState.Present).AsTexture();
         }
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public Handle<Texture> GetCurrentBackBuffer()
     {
-        return _backBuffers[_swapChain.Get()->GetCurrentBackBufferIndex()];
+        ThrowIfDisposed();
+        return _backBuffers[nativeObject.Get()->GetCurrentBackBufferIndex()];
     }
 
     public void Present(bool vsync = true)
     {
+        ThrowIfDisposed();
+
         var presentFlags = 0u;
         var syncInterval = vsync ? 1u : 0u;
 
-        ThrowIfFailed(_swapChain.Get()->Present(syncInterval, presentFlags));
+        ThrowIfFailed(nativeObject.Get()->Present(syncInterval, presentFlags));
     }
 
     public void Resize(uint width, uint height)
     {
+        ThrowIfDisposed();
+
         if (Width == width && Height == height)
         {
             return;
@@ -152,7 +155,7 @@ internal unsafe class D3D12SwapChain : ISwapChain
         }
 
         // Resize the swap chain
-        if (_swapChain.Get()->ResizeBuffers(BufferCount, width, height, DXGI_FORMAT_B8G8R8A8_UNORM, (uint)DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING).FAILED)
+        if (nativeObject.Get()->ResizeBuffers(BufferCount, width, height, DXGI_FORMAT_B8G8R8A8_UNORM, (uint)DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING).FAILED)
         {
             throw new InvalidOperationException("Failed to resize swap chain buffers.");
         }
@@ -164,9 +167,9 @@ internal unsafe class D3D12SwapChain : ISwapChain
         CreateBackBuffers();
     }
 
-    public void Dispose()
+    protected override void Dispose(bool disposing)
     {
-        if (_disposed)
+        if (Disposed)
         {
             return;
         }
@@ -176,8 +179,8 @@ internal unsafe class D3D12SwapChain : ISwapChain
             _resourceDatabase.ReleaseResource(_backBuffers[i].AsResource());
         }
 
-        _swapChain.Dispose();
         _backBuffers.Dispose();
-        _disposed = true;
+
+        base.Dispose(disposing);
     }
 }

Ghost.Graphics/D3D12/Utilities/D3D12DescriptorHeap.cs

@@ -1,10 +1,10 @@
 using Ghost.Core.Utilities;
+using Misaki.HighPerformance.LowLevel;
 using Misaki.HighPerformance.LowLevel.Collections;
 using Misaki.HighPerformance.LowLevel.Utilities;
 using System.Diagnostics;
 using System.Numerics;
 using TerraFX.Interop.DirectX;
-using TerraFX.Interop.Windows;
 
 using static TerraFX.Aliases.D3D12_Alias;
 
@@ -16,8 +16,8 @@ internal unsafe struct D3D12DescriptorHeap : IDisposable
 
     private readonly D3D12RenderDevice _device;
 
-    private ComPtr<ID3D12DescriptorHeap> _heap;
+    private UniquePtr<ID3D12DescriptorHeap> _heap;
-    private ComPtr<ID3D12DescriptorHeap> _shaderVisibleHeap;
+    private UniquePtr<ID3D12DescriptorHeap> _shaderVisibleHeap;
     private D3D12_CPU_DESCRIPTOR_HANDLE _startCpuHandle;
     private D3D12_CPU_DESCRIPTOR_HANDLE _startCpuHandleShaderVisible;
     private D3D12_GPU_DESCRIPTOR_HANDLE _startGpuHandleShaderVisible;
@@ -323,18 +323,25 @@ internal unsafe struct D3D12DescriptorHeap : IDisposable
         var oldSize = NumDescriptors;
         var newSize = (int)BitOperations.RoundUpToPowerOf2((uint)minRequiredSize);
 
-        using var oldHeap = _heap;
+        var oldHeap = _heap.Detach();
 
-        if (!AllocateResources(newSize))
+        try
         {
-            return false;
+            if (!AllocateResources(newSize))
+            {
+                return false;
+            }
+
+            _device.NativeDevice->CopyDescriptorsSimple((uint)oldSize, _startCpuHandle, oldHeap->GetCPUDescriptorHandleForHeapStart(), HeapType);
+
+            if (_shaderVisibleHeap.Get() != null)
+            {
+                _device.NativeDevice->CopyDescriptorsSimple((uint)oldSize, _startCpuHandleShaderVisible, oldHeap->GetCPUDescriptorHandleForHeapStart(), HeapType);
+            }
         }
-
+        finally
-        _device.NativeDevice->CopyDescriptorsSimple((uint)oldSize, _startCpuHandle, oldHeap.Get()->GetCPUDescriptorHandleForHeapStart(), HeapType);
-
-        if (_shaderVisibleHeap.Get() != null)
         {
-            _device.NativeDevice->CopyDescriptorsSimple((uint)oldSize, _startCpuHandleShaderVisible, oldHeap.Get()->GetCPUDescriptorHandleForHeapStart(), HeapType);
+            oldHeap->Release();
         }
 
         return true;

Ghost.Graphics/D3D12/Utilities/EnumAliases.cs

@@ -2784,7 +2784,6 @@ public static partial class D3D12_Alias
     public const D3D12_BARRIER_LAYOUT D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_SHADER_RESOURCE = D3D12_BARRIER_LAYOUT.D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_SHADER_RESOURCE;
     public const D3D12_BARRIER_LAYOUT D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_COPY_SOURCE = D3D12_BARRIER_LAYOUT.D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_COPY_SOURCE;
     public const D3D12_BARRIER_LAYOUT D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_COPY_DEST = D3D12_BARRIER_LAYOUT.D3D12_BARRIER_LAYOUT_COMPUTE_QUEUE_COPY_DEST;
-    public const D3D12_BARRIER_LAYOUT D3D12_BARRIER_LAYOUT_VIDEO_QUEUE_COMMON = D3D12_BARRIER_LAYOUT.D3D12_BARRIER_LAYOUT_VIDEO_QUEUE_COMMON;
     public const D3D12_BARRIER_LAYOUT D3D12_BARRIER_LAYOUT_UNDEFINED = D3D12_BARRIER_LAYOUT.D3D12_BARRIER_LAYOUT_UNDEFINED;
 }
 

Ghost.Graphics/Ghost.Graphics.csproj

@@ -31,8 +31,12 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Misaki.HighPerformance.Analyzer" Version="1.0.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Misaki.HighPerformance.Image" Version="1.0.0" />
-    <PackageReference Include="TerraFX.Interop.D3D12MemoryAllocator" Version="2.0.1.5" />
+    <PackageReference Include="TerraFX.Interop.D3D12MemoryAllocator" Version="3.0.1" />
   </ItemGroup>
 
   <ItemGroup>

Ghost.Graphics/RHI/Common.cs

@@ -59,7 +59,7 @@ public readonly struct GraphicsPipelineKey
     {
         if (!value.TryFormat(destination, out _, "X16"))
         {
-            return Result.Fail("Failed to format GraphicsPipelineKey to string.");
+            return Result.Failure("Failed to format GraphicsPipelineKey to string.");
         }
 
         destination[16] = '\0';
@@ -166,7 +166,7 @@ public ref struct GraphicsPSODescriptor
     }
 }
 
-public readonly struct CBufferPropertyInfo
+public readonly record struct CBufferPropertyInfo
 {
     public string Name
     {
@@ -184,7 +184,7 @@ public readonly struct CBufferPropertyInfo
     }
 }
 
-public readonly struct CBufferInfo
+public readonly record struct CBufferInfo
 {
     public string Name
     {

Ghost.Graphics/RHI/ICommandBuffer.cs

@@ -167,7 +167,7 @@ public interface ICommandBuffer : IDisposable
     /// <summary>
     /// Uploads the specified data to the buffer represented by the given handle.
     /// </summary>
-    /// <typeparam name="T">The unmanaged value type of the elements to upload to the buffer.</typeparam>
+    /// <typeparam name="T">The unmanaged Value type of the elements to upload to the buffer.</typeparam>
     /// <param name="buffer">A handle to the buffer that will receive the uploaded data.</param>
     /// <param name="data">A read-only span containing the data to upload to the buffer. The span must contain elements of type
     /// <typeparamref name="T"/>.</param>

Ghost.Graphics/RHI/ICommandQueue.cs

@@ -26,22 +26,22 @@ public interface ICommandQueue : IDisposable
     public void Submit(params ReadOnlySpan<ICommandBuffer> commandBuffers);
 
     /// <summary>
-    /// Signals a fence with the specified value
+    /// Signals a fence with the specified Value
     /// </summary>
     /// <param name="value">Value to signal</param>
-    /// <returns>The fence value that was signaled</returns>
+    /// <returns>The fence Value that was signaled</returns>
     public ulong Signal(ulong value);
 
     /// <summary>
-    /// Waits for the fence to reach the specified value
+    /// Waits for the fence to reach the specified Value
     /// </summary>
     /// <param name="value">Value to wait for</param>
     public void WaitForValue(ulong value);
 
     /// <summary>
-    /// Gets the last completed fence value
+    /// Gets the last completed fence Value
     /// </summary>
-    /// <returns>Last completed fence value</returns>
+    /// <returns>Last completed fence Value</returns>
     public ulong GetCompletedValue();
 
     /// <summary>

Ghost.Graphics/RHI/IGraphicsEngine.cs

@@ -1,3 +1,5 @@
+using Ghost.Graphics.Contracts;
+
 namespace Ghost.Graphics.RHI;
 
 public interface IGraphicsEngine : IDisposable
@@ -7,6 +9,11 @@ public interface IGraphicsEngine : IDisposable
         get;
     }
 
+    IShaderCompiler ShaderCompiler
+    {
+        get;
+    }
+
     IPipelineLibrary PipelineLibrary
     {
         get;

Ghost.Graphics/RHI/IPipelineLibrary.cs

@@ -1,4 +1,5 @@
-using Ghost.Core.Graphics;
+using Ghost.Core;
+using Ghost.Graphics.Contracts;
 
 namespace Ghost.Graphics.RHI;
 
@@ -21,5 +22,6 @@ public interface IPipelineLibrary
     /// <param name="filePath">File path. If null, load default library.</param>
     void InitializeLibrary(string? filePath);
     void SaveLibraryToDisk(string filePath);
-    GraphicsPipelineKey CompilePassPSO(IPassDescriptor descriptor, ReadOnlySpan<TextureFormat> rtvs, TextureFormat dsv);
+    Result<GraphicsPipelineKey> CompilePSO(ref readonly GraphicsPSODescriptor descriptor, ref readonly GraphicsCompiledResult compiled);
+    Result<CBufferInfo, ResultStatus> GetCBufferInfo(ShaderPassKey passId);
 }

Ghost.Graphics/RHI/IRenderDevice.cs

@@ -1,5 +1,16 @@
 namespace Ghost.Graphics.RHI;
 
+[Flags]
+public enum FeatureSupport
+{
+    None = 0,
+    RayTracing = 1 << 0,
+    VariableRateShading = 1 << 1,
+    MeshShaders = 1 << 2,
+    SamplerFeedback = 1 << 3,
+    BindlessResources = 1 << 4,
+}
+
 /// <summary>
 /// D3D12-native render device interface for creating graphics resources
 /// </summary>
@@ -28,4 +39,6 @@ public interface IRenderDevice : IDisposable
     {
         get;
     }
+
+    public FeatureSupport GetFeatureSupport();
 }

Ghost.Graphics/RHI/IResourceAllocator.cs

@@ -48,5 +48,5 @@ public interface IResourceAllocator
     /// </summary>
     /// <returns>An <see cref="Identifier{Shader}"/> representing the newly created shader.</returns>
     /// <param name="descriptor">The viewGroup containing the shader's properties and passes.</param>
-    public Identifier<Shader> CreateShader(ShaderDescriptor descriptor);
+    public Identifier<Shader> CreateGraphicsShader(ShaderDescriptor descriptor);
 }

Ghost.Graphics/RHI/IResourceDatabase.cs

@@ -35,11 +35,11 @@ public interface IResourceDatabase
     /// Retrieves the current state of the specified resource.
     /// </summary>
     /// <param name="handle">The handle that uniquely identifies the resource whose state is to be retrieved.</param>
-    /// <returns>A ResourceState value representing the current state of the resource associated with the specified handle.</returns>
+    /// <returns>A ResourceState Value representing the current state of the resource associated with the specified handle.</returns>
     ResourceState GetResourceState(Handle<GPUResource> handle);
 
     /// <summary>
-    /// Sets the state of the specified resource handle to the given value.
+    /// Sets the state of the specified resource handle to the given Value.
     /// </summary>
     /// <param name="handle">The handle that identifies the resource whose state will be updated.</param>
     /// <param name="state">The new state to assign to the resource represented by <paramref name="handle"/>.</param>

Ghost.Graphics/RenderPasses/MeshRenderPass.cs

@@ -1,10 +1,13 @@
 using Ghost.Core;
-using Ghost.Graphics.Core;
+using Ghost.Core.Graphics;
 using Ghost.Graphics.Contracts;
+using Ghost.Graphics.Core;
 using Ghost.Graphics.RHI;
 using Ghost.Graphics.Utilities;
 using Ghost.SDL.Compiler;
 using Misaki.HighPerformance.Image;
+using Misaki.HighPerformance.Utilities;
+using TerraFX.Interop.Windows;
 
 namespace Ghost.Graphics.RenderPasses;
 
@@ -30,14 +33,36 @@ internal unsafe class MeshRenderPass : IRenderPass
     {
         var shaderDescriptor = SDLCompiler.CompileShader("F:/csharp/GhostEngine/Ghost.Graphics/test.gshader", "C:/Users/Misaki/Downloads/Archive").GetValueOrThrow();
 
-        var key = ctx.PipelineLibrary.CompilePassPSO(shaderDescriptor.passes[0], [TextureFormat.B8G8R8A8_UNorm], TextureFormat.Unknown);
+        foreach (var pass in shaderDescriptor.passes)
+        {
+            var compileResult = ctx.ShaderCompiler.CompilePass(pass);
+            if (compileResult.IsFailure || pass is not FullPassDescriptor fullPass)
+            {
+                continue;
+            }
+
+            var psoDes = new GraphicsPSODescriptor
+            {
+                PassId = new ShaderPassKey(fullPass.Identifier),
+                ZTest = fullPass.localPipeline.zTest,
+                ZWrite = fullPass.localPipeline.zWrite,
+                Cull = fullPass.localPipeline.cull,
+                Blend = fullPass.localPipeline.blend,
+                ColorMask = fullPass.localPipeline.colorMask,
+
+                RtvFormats = [TextureFormat.B8G8R8A8_UNorm],
+                DsvFormat = TextureFormat.Unknown,
+            };
+
+            ctx.PipelineLibrary.CompilePSO(in psoDes, in compileResult.GetValueRef()).GetValueOrThrow();
+        }
 
         MeshBuilder.CreateCube(0.75f, default, out var vertices, out var indices);
 
         _mesh = ctx.CreateMesh(vertices, indices);
         ctx.UploadMesh(_mesh, true);
 
-        _shader = ctx.ResourceAllocator.CreateShader(shaderDescriptor);
+        _shader = ctx.ResourceAllocator.CreateGraphicsShader(shaderDescriptor);
         _material = ctx.ResourceAllocator.CreateMaterial(_shader);
 
         var imageResults = new ImageResult[_textureFiles.Length];

Ghost.Graphics/Utilities/DxcShaderCompiler.cs

@@ -1,16 +1,21 @@
 using Ghost.Core;
+using Ghost.Core.Graphics;
+using Ghost.Core.Utilities;
+using Ghost.Graphics.Contracts;
 using Ghost.Graphics.RHI;
+using Misaki.HighPerformance.LowLevel;
 using Misaki.HighPerformance.LowLevel.Buffer;
 using Misaki.HighPerformance.LowLevel.Collections;
+using Misaki.HighPerformance.Utilities;
 using System.Runtime.InteropServices;
 using TerraFX.Interop.DirectX;
 using TerraFX.Interop.Windows;
 
 using static TerraFX.Interop.DirectX.DXC;
 
-namespace Ghost.Graphics.D3D12;
+namespace Ghost.Graphics.Utilities;
 
-internal partial class D3D12ShaderCompiler
+internal sealed partial class DxcShaderCompiler
 {
     private static string GetProfileString(ShaderStage stage, CompilerTier version)
     {
@@ -84,6 +89,11 @@ internal partial class D3D12ShaderCompiler
             argsArray.Add(DXC_ARG_WARNINGS_ARE_ERRORS);
         }
 
+        if (config.options.HasFlag(CompilerOption.SpirvCrossCompile))
+        {
+            argsArray.Add("-spirv");
+        }
+
         return argsArray;
     }
 
@@ -105,12 +115,16 @@ internal partial class D3D12ShaderCompiler
     }
 }
 
-internal unsafe partial class D3D12ShaderCompiler : IShaderCompiler
+internal sealed unsafe partial class DxcShaderCompiler : IShaderCompiler, IDisposable
 {
-    private ComPtr<IDxcCompiler3> _compiler;
+    private UniquePtr<IDxcCompiler3> _compiler;
-    private ComPtr<IDxcUtils> _utils;
+    private UniquePtr<IDxcUtils> _utils;
+    // NOTE: This is just a temporary cache for compiled shader code. We will implement a proper disk cache later.
+    private readonly Dictionary<ShaderPassKey, GraphicsCompiledResult> _compiledResults;
 
-    public D3D12ShaderCompiler()
+    private bool _disposed;
+
+    public DxcShaderCompiler()
     {
         // Initialize DXC _compiler.Get() and _utils.Get()
         var dxccID = CLSID.CLSID_DxcCompiler;
@@ -123,121 +137,19 @@ internal unsafe partial class D3D12ShaderCompiler : IShaderCompiler
 
         _compiler.Attach(pCompiler);
         _utils.Attach(pUtils);
+
+        _compiledResults = new();
     }
 
-    public Result<CompileResult> Compile(ref readonly CompilerConfig config, Allocator allocator, void** ppReflection)
+    ~DxcShaderCompiler()
     {
-        // NOTE: Should we cache the _compiler.Get() and _utils.Get() instances for better performance?
+        Dispose();
-        IDxcIncludeHandler* pIncludeHandler = default;
-
-        try
-        {
-            // Create DXC _compiler.Get() and _utils.Get()
-            var dxccID = CLSID.CLSID_DxcCompiler;
-            var dxcuID = CLSID.CLSID_DxcUtils;
-
-
-            ThrowIfFailed(_utils.Get()->CreateDefaultIncludeHandler(&pIncludeHandler));
-
-            // Create source blob
-            using ComPtr<IDxcBlobEncoding> sourceBlob = default;
-            fixed (char* pPath = config.shaderPath)
-            {
-                if (_utils.Get()->LoadFile(pPath, null, sourceBlob.GetAddressOf()).FAILED)
-                {
-                    return Result.Fail($"Failed to load shader file: {config.shaderPath}");
-                }
-            }
-
-            var argsArray = GetCompilerArguments(in config);
-            var argPtrs = stackalloc char*[argsArray.Count];
-            for (var i = 0; i < argsArray.Count; i++)
-            {
-                argPtrs[i] = (char*)Marshal.StringToHGlobalUni(argsArray[i]);
-            }
-
-            IDxcResult* pResult = default;
-
-            try
-            {
-                // Compile shader
-                var buffer = new DxcBuffer
-                {
-                    Ptr = sourceBlob.Get()->GetBufferPointer(),
-                    Size = sourceBlob.Get()->GetBufferSize(),
-                    Encoding = DXC_CP_UTF8
-                };
-
-                ThrowIfFailed(_compiler.Get()->Compile(&buffer, argPtrs, (uint)argsArray.Count, pIncludeHandler, __uuidof(pResult), (void**)&pResult));
-
-                // Check compilation pResult
-                HRESULT hrStatus;
-                pResult->GetStatus(&hrStatus);
-                if (hrStatus.FAILED)
-                {
-                    // Get error messages
-                    using ComPtr<IDxcBlobEncoding> errorBlob = default;
-                    pResult->GetErrorBuffer(errorBlob.GetAddressOf());
-
-                    if (errorBlob.Get() != null)
-                    {
-                        var errorMessage = Marshal.PtrToStringUTF8((IntPtr)errorBlob.Get()->GetBufferPointer());
-                        return Result.Fail($"DXC shader compilation failed:\n{errorMessage}");
-                    }
-                    else
-                    {
-                        return Result.Fail("DXC shader compilation failed with unknown error.");
-                    }
-                }
-
-                // Get compiled bytecode
-                using ComPtr<IDxcBlob> bytecodeBlob = default;
-                ThrowIfFailed(pResult->GetResult(bytecodeBlob.GetAddressOf()));
-
-                // Get pReflection data using DXC API
-                if (ppReflection != null)
-                {
-                    ThrowIfFailed(pResult->GetOutput(DXC_OUT_KIND.DXC_OUT_REFLECTION, __uuidof<IDxcBlob>(), ppReflection, null));
-                }
-
-                var bytecodeSize = bytecodeBlob.Get()->GetBufferSize();
-                var bytecode = new UnsafeArray<byte>((int)bytecodeSize, allocator);
-
-                NativeMemory.Copy(bytecodeBlob.Get()->GetBufferPointer(), bytecode.GetUnsafePtr(), bytecodeSize);
-
-                return new CompileResult
-                {
-                    bytecode = bytecode,
-                };
-            }
-            finally
-            {
-                for (var i = 0; i < argsArray.Count; i++)
-                {
-                    Marshal.FreeHGlobal((nint)argPtrs[i]);
-                }
-
-                pResult->Release();
-            }
-        }
-        finally
-        {
-            pIncludeHandler->Release();
-        }
     }
 
-    // TODO: Since we are using fixed root signature layout, the pReflection pass should only validate the layout, not generate it.
+    private Result<ShaderReflectionData> PerformDXCReflection(IDxcBlob* pReflectionBlob)
-    // TODO: Ideally this should return a structured pReflection data instead of populating raw lists/dictionaries.
-    public Result<ShaderReflectionData> PerformDXCReflection<T>(T* pReflectionBlob)
-        where T : unmanaged
     {
-        if (typeof(T) != typeof(IDxcBlob))
-        {
-            return Result<ShaderReflectionData>.Fail("Unsupported reflection type. Only IDxcBlob is supported.");
-        }
-
         ID3D12ShaderReflection* pReflection = default;
-        IDxcBlob* pDxcReflectionBlob = (IDxcBlob*)pReflectionBlob;
+        var pDxcReflectionBlob = (IDxcBlob*)pReflectionBlob;
 
         try
         {
@@ -267,7 +179,7 @@ internal unsafe partial class D3D12ShaderCompiler : IShaderCompiler
                 var resourceName = Marshal.PtrToStringUTF8((IntPtr)bindDesc.Name);
                 if (resourceName == null)
                 {
-                    return Result.Fail("Failed to get resource name from reflection data.");
+                    return Result.Failure("Failed to get resource name from reflection data.");
                 }
 
                 var info = new ResourceBindingInfo
@@ -329,4 +241,262 @@ internal unsafe partial class D3D12ShaderCompiler : IShaderCompiler
             pReflection->Release();
         }
     }
+
+    public Result<CompileResult> Compile(ref readonly CompilerConfig config, Allocator allocator)
+    {
+        ObjectDisposedException.ThrowIf(_disposed, this);
+
+        IDxcIncludeHandler* pIncludeHandler = default;
+        IDxcBlobEncoding* pSourceBlob = default;
+
+        try
+        {
+            // Create DXC _compiler.Get() and _utils.Get()
+            var dxccID = CLSID.CLSID_DxcCompiler;
+            var dxcuID = CLSID.CLSID_DxcUtils;
+
+
+            ThrowIfFailed(_utils.Get()->CreateDefaultIncludeHandler(&pIncludeHandler));
+
+            // Create source blob
+            fixed (char* pPath = config.shaderPath)
+            {
+                if (_utils.Get()->LoadFile(pPath, null, &pSourceBlob).FAILED)
+                {
+                    return Result.Failure($"Failed to load shader file: {config.shaderPath}");
+                }
+            }
+
+            var argsArray = GetCompilerArguments(in config);
+            var argPtrs = stackalloc char*[argsArray.Count];
+            for (var i = 0; i < argsArray.Count; i++)
+            {
+                argPtrs[i] = (char*)Marshal.StringToHGlobalUni(argsArray[i]);
+            }
+
+            IDxcResult* pResult = default;
+
+            try
+            {
+                // Compile shader
+                var buffer = new DxcBuffer
+                {
+                    Ptr = pSourceBlob->GetBufferPointer(),
+                    Size = pSourceBlob->GetBufferSize(),
+                    Encoding = DXC_CP_UTF8
+                };
+
+                ThrowIfFailed(_compiler.Get()->Compile(&buffer, argPtrs, (uint)argsArray.Count, pIncludeHandler, __uuidof(pResult), (void**)&pResult));
+
+                // Check compilation pResult
+                HRESULT hrStatus;
+                pResult->GetStatus(&hrStatus);
+                if (hrStatus.FAILED)
+                {
+                    // Get error messages
+                    IDxcBlobEncoding* pErrorBlob = default;
+                    pResult->GetErrorBuffer(&pErrorBlob);
+
+                    if (pErrorBlob != null)
+                    {
+                        var errorMessage = Marshal.PtrToStringUTF8((IntPtr)pErrorBlob->GetBufferPointer());
+                        pErrorBlob->Release();
+
+                        return Result.Failure($"DXC shader compilation failed:\n{errorMessage}");
+                    }
+                    else
+                    {
+                        return Result.Failure("DXC shader compilation failed with unknown error.");
+                    }
+                }
+
+                // Get compiled bytecode
+                IDxcBlob* pBytecodeBlob = default;
+                try
+                {
+                    ThrowIfFailed(pResult->GetResult(&pBytecodeBlob));
+
+                    ShaderReflectionData reflection = default;
+                    if (config.options.HasFlag(CompilerOption.KeepReflections))
+                    {
+                        IDxcBlob* pReflection = default;
+                        if ((pResult->GetOutput(DXC_OUT_KIND.DXC_OUT_REFLECTION, __uuidof<IDxcBlob>(), (void**)&pReflection, null).SUCCEEDED))
+                        {
+                            reflection = PerformDXCReflection(pReflection).GetValueOrDefault();
+                        }
+
+                        if (pReflection != null)
+                        {
+                            pReflection->Release();
+                        }
+                    }
+
+                    var bytecodeSize = pBytecodeBlob->GetBufferSize();
+                    var bytecode = new UnsafeArray<byte>((int)bytecodeSize, allocator);
+
+                    NativeMemory.Copy(pBytecodeBlob->GetBufferPointer(), bytecode.GetUnsafePtr(), bytecodeSize);
+
+                    return new CompileResult
+                    {
+                        bytecode = bytecode,
+                        reflectionData = reflection,
+                    };
+                }
+                finally
+                {
+                    if (pBytecodeBlob != null)
+                    {
+                        pBytecodeBlob->Release();
+                    }
+                }
+            }
+            finally
+            {
+                for (var i = 0; i < argsArray.Count; i++)
+                {
+                    Marshal.FreeHGlobal((nint)argPtrs[i]);
+                }
+
+                if (pResult != null)
+                {
+                    pResult->Release();
+                }
+            }
+        }
+        finally
+        {
+            if (pIncludeHandler != null)
+            {
+                pIncludeHandler->Release();
+            }
+        }
+    }
+
+    public Result<GraphicsCompiledResult> CompilePass(IPassDescriptor descriptor)
+    {
+        ObjectDisposedException.ThrowIf(_disposed, this);
+
+        if (descriptor is not FullPassDescriptor fullDescriptor)
+        {
+            return Result.Failure("FullPassDescriptor expected.");
+        }
+
+        CompileResult tsResult = default;
+        var tsEntry = fullDescriptor.taskShader;
+        if (tsEntry.IsCreated)
+        {
+            var config = new CompilerConfig
+            {
+                defines = fullDescriptor.defines.AsSpan(),
+                include = fullDescriptor.generatedCodePath,
+                shaderPath = tsEntry.shader,
+                entryPoint = tsEntry.entry,
+                stage = ShaderStage.TaskShader,
+                tier = CompilerTier.Tier0,
+                optimizeLevel = CompilerOptimizeLevel.O3,
+                options = CompilerOption.KeepReflections,
+            };
+
+            var result = Compile(ref config, Allocator.Persistent);
+            if (result.IsFailure)
+            {
+                return Result.Failure(result.Message);
+            }
+
+            tsResult = result.Value;
+        }
+
+        CompileResult msResult;
+        var msEntry = fullDescriptor.meshShader;
+        if (msEntry.IsCreated)
+        {
+            var config = new CompilerConfig
+            {
+                defines = fullDescriptor.defines.AsSpan(),
+                include = fullDescriptor.generatedCodePath,
+                shaderPath = msEntry.shader,
+                entryPoint = msEntry.entry,
+                stage = ShaderStage.MeshShader,
+                tier = CompilerTier.Tier0,
+                optimizeLevel = CompilerOptimizeLevel.O3,
+                options = CompilerOption.KeepReflections,
+            };
+
+            var result = Compile(ref config, Allocator.Persistent);
+            if (result.IsFailure)
+            {
+                return Result.Failure(result.Message);
+            }
+
+            msResult = result.Value;
+        }
+        else
+        {
+            return Result.Failure("Mesh shader expected.");
+        }
+
+        CompileResult psResult;
+        var psEntry = fullDescriptor.pixelShader;
+        if (psEntry.IsCreated)
+        {
+            var config = new CompilerConfig
+            {
+                defines = fullDescriptor.defines.AsSpan(),
+                include = fullDescriptor.generatedCodePath,
+                shaderPath = psEntry.shader,
+                entryPoint = psEntry.entry,
+                stage = ShaderStage.PixelShader,
+                tier = CompilerTier.Tier0,
+                optimizeLevel = CompilerOptimizeLevel.O3,
+                options = CompilerOption.KeepReflections,
+            };
+
+            var result = Compile(ref config, Allocator.Persistent);
+            if (result.IsFailure)
+            {
+                return Result.Failure(result.Message);
+            }
+
+            psResult = result.Value;
+        }
+        else
+        {
+            return Result.Failure("Pixel shader expected.");
+        }
+
+        return new GraphicsCompiledResult
+        {
+            tsResult = tsResult,
+            msResult = msResult,
+            psResult = psResult,
+        };
+    }
+
+    public Result<GraphicsCompiledResult> LoadCompiledCache(ShaderPassKey key)
+    {
+        ObjectDisposedException.ThrowIf(_disposed, this);
+
+        if (_compiledResults.TryGetValue(key, out var compiledResult))
+        {
+            return compiledResult;
+        }
+        else
+        {
+            return Result.Failure("Key not found.");
+        }
+    }
+
+    public void Dispose()
+    {
+        if (_disposed)
+        {
+            return;
+        }
+
+        _compiler.Dispose();
+        _utils.Dispose();
+
+        _disposed = true;
+        GC.SuppressFinalize(this);
+    }
 }

Ghost.Shader.Test/Program.cs

@@ -30,7 +30,11 @@ if (model == null)
 }
 
 var descriptor = SDLCompiler.ResolveShader(model);
-SDLCompiler.GenerateShader(descriptor, "C:/Users/Misaki/Downloads/Archive");
+
+foreach (var pass in descriptor.passes)
+{
+    SDLCompiler.GeneratePass(pass, "C:/Users/Misaki/Downloads/Archive");
+}
 
 Console.WriteLine("Shader compiled successfully:");
 

Ghost.Shader/Compiler/Parser/PropertiesBlock.cs

@@ -442,7 +442,7 @@ internal class PropertiesBlock : IBlockParser<PropertiesSyntax, List<PropertySem
             return false;
         }
 
-        // Build default value if we have a builder (textures currently null / TODO)
+        // Build default Value if we have a builder (textures currently null / TODO)
         if (info.Builder != null)
         {
             try

Ghost.Shader/Compiler/SDLCompiler.cs

@@ -247,11 +247,15 @@ internal static class SDLCompiler
                     errorMessages.AppendLine(error.ToString());
                 }
 
-                return Result.Fail("Failed to compile shader due to errors:\n" + errorMessages.ToString());
+                return Result.Failure("Failed to compile shader due to errors:\n" + errorMessages.ToString());
             }
 
             var desc = ResolveShader(model);
-            var globalPropPath = GenerateGlobalProperties(desc.globalProperties, generatedOutputDirectory);
+            var globalPropResult = GenerateGlobalProperties(desc.globalProperties, generatedOutputDirectory);
+            if (globalPropResult.IsFailure)
+            {
+                return Result.Failure("Failed to generate global properties: " + globalPropResult.Message);
+            }
 
             foreach (var pass in desc.passes)
             {
@@ -261,15 +265,21 @@ internal static class SDLCompiler
                 }
 
                 fullPass.includes ??= new List<string>();
-                fullPass.includes.Add(globalPropPath);
+                fullPass.includes.Add(globalPropResult.Value);
-                fullPass.generatedCodePath = GeneratePass(fullPass, generatedOutputDirectory);
+                var generatedResult = GeneratePass(fullPass, generatedOutputDirectory);
+                if (generatedResult.IsFailure)
+                {
+                    return Result.Failure("Failed to generate pass files: " + generatedResult.Message);
+                }
+
+                fullPass.generatedCodePath = generatedResult.Value;
             }
 
             return desc;
         }
         catch (Exception ex)
         {
-            return Result.Fail("Failed to generate shader files: " + ex.Message);
+            return Result.Failure("Failed to generate shader files: " + ex.Message);
         }
     }
 
@@ -303,16 +313,16 @@ internal static class SDLCompiler
         };
     }
 
-    public static string GeneratePass(IPassDescriptor descriptor, string targetDirectory)
+    public static Result<string> GeneratePass(IPassDescriptor descriptor, string targetDirectory)
     {
         if (descriptor is not FullPassDescriptor fullPass)
         {
-            throw new NotSupportedException("Only full pass descriptors are supported for compilation.");
+            return Result.Failure("Only full pass descriptors are supported for compilation.");
         }
 
         if (!Directory.Exists(targetDirectory))
         {
-            throw new ArgumentException("Target directory does not exist.", nameof(targetDirectory));
+            return Result.Failure("Target directory does not exist.");
         }
 
         var outputFileName = fullPass.uniqueIdentifier.Replace(' ', '_');
@@ -369,11 +379,11 @@ struct PerMaterialData
         return outputFilePath;
     }
 
-    public static string GenerateGlobalProperties(List<PropertyDescriptor> globalProperties, string targetDirectory)
+    public static Result<string> GenerateGlobalProperties(List<PropertyDescriptor> globalProperties, string targetDirectory)
     {
         if (!Directory.Exists(targetDirectory))
         {
-            throw new ArgumentException("Target directory does not exist.", nameof(targetDirectory));
+            return Result.Failure("Target directory does not exist.");
         }
 
         var globalFilePath = Path.Combine(targetDirectory, _GLOBAL_PROPERTY_FILE_NAME);

Ghost.Shader/Generator/ShaderStructGenerator.cs

@@ -73,7 +73,7 @@ internal static partial class ShaderStructGenerator
             var name = $"{CamelCaseToUnderscoreRegex().Replace(enumName, "_$1")}_{names[i]}";
             var value = values.GetValue(i);
             //        sb.Append(@$"
-            //{name} = {value},");
+            //{name} = {Value},");
             sb.Append(@$"
 #define {name.ToUpperInvariant()} {value}"); // Use #define for capability. Enum is only support for newer HLSL versions.
         }