Refactor resource management and update project configs

- Use `using` for MeshNode disposal in MeshAssetHandler
- Switch to `ref` UnsafeList in meshlet hierarchy methods for perf
- Ensure proper disposal of UnsafeList<int> and TempBinaryNode
- Add launchSettings.json for Ghost.Editor.Core debugging
- Update GhostEngine.slnx with platform mappings for Editor.Core
- Remove MHP_ENABLE_SAFETY_CHECKS from Debug|AnyCPU in csproj

src/Editor/Ghost.Editor.Core/Assets/MeshAssetHandler.cs

@@ -261,17 +261,16 @@ internal class MeshAssetHandler : IImportableAssetHandler, IPackableAssetHandler
             return Result.Failure<ImportedSubAsset[]>("Source file does not exist.");
         }
 
-        var meshSettings = ResolveSettings(sourcePath, settings);
-        var root = new MeshNode();
         try
         {
-            var heapSize1 = AllocationManager.TotalAllocatedMemory;
+            var meshSettings = ResolveSettings(sourcePath, settings);
+            
+            using var root = new MeshNode();
+            
             var parseJob = new MeshParsingJob(root, sourcePath, AllocationHandle.Persistent, meshSettings);
             var context = default(Misaki.HighPerformance.Jobs.JobExecutionContext);
             parseJob.Execute(in context);
 
-            var heapSize2 = AllocationManager.TotalAllocatedMemory;
-
             var manifest = new ModelManifest
             {
                 AssetId = id,
@@ -291,10 +290,6 @@ internal class MeshAssetHandler : IImportableAssetHandler, IPackableAssetHandler
         {
             return Result.Failure<ImportedSubAsset[]>($"Failed to import mesh asset: {ex.Message}");
         }
-        finally
-        {
-            root.Dispose();
-        }
     }
 
     public ValueTask<Result> ExportAsync(string assetPath, string targetPath, IAssetExportOptions? options, CancellationToken token = default)

src/Editor/Ghost.Editor.Core/Assets/MeshProcessor.Meshlet.cs

@@ -864,7 +864,7 @@ internal static unsafe partial class MeshProcessor
         public int meshletIndex;
     }
 
-    private static int BuildBinaryTree(UnsafeList<TempBinaryNode> nodes, UnsafeArray<int> meshletIndices, int start, int end, ReadOnlySpan<Meshlet> meshlets)
+    private static int BuildBinaryTree(ref UnsafeList<TempBinaryNode> nodes, UnsafeArray<int> meshletIndices, int start, int end, ReadOnlySpan<Meshlet> meshlets)
     {
         if (start == end - 1)
         {
@@ -921,8 +921,8 @@ internal static unsafe partial class MeshProcessor
             mid = start + (end - start) / 2;
         }
 
-        var left = BuildBinaryTree(nodes, meshletIndices, start, mid, meshlets);
+        var left = BuildBinaryTree(ref nodes, meshletIndices, start, mid, meshlets);
-        var right = BuildBinaryTree(nodes, meshletIndices, mid, end, meshlets);
+        var right = BuildBinaryTree(ref nodes, meshletIndices, mid, end, meshlets);
 
         var leftNode = nodes[left];
         var rightNode = nodes[right];
@@ -945,7 +945,7 @@ internal static unsafe partial class MeshProcessor
         return internalNodeIndex;
     }
 
-    private static void GatherChildren(UnsafeList<TempBinaryNode> binaryNodes, int nodeIndex, UnsafeList<int> gathered)
+    private static void GatherChildren(UnsafeList<TempBinaryNode> binaryNodes, int nodeIndex, ref UnsafeList<int> gathered)
     {
         gathered.Clear();
         var node = binaryNodes[nodeIndex];
@@ -992,8 +992,11 @@ internal static unsafe partial class MeshProcessor
             return -1;
         }
 
-        using var gathered = new UnsafeList<int>(4, AllocationHandle.Persistent);
+        var gathered = new UnsafeList<int>(4, AllocationHandle.Persistent);
-        GatherChildren(binaryNodes, binaryNodeIndex, gathered);
+
+        try
+        {
+            GatherChildren(binaryNodes, binaryNodeIndex, ref gathered);
 
             var bvhNode = new MeshletHierarchyNode();
 
@@ -1067,6 +1070,11 @@ internal static unsafe partial class MeshProcessor
             hierarchyNodes[outNodeIndex] = bvhNode;
             return outNodeIndex;
         }
+        finally
+        {
+            gathered.Dispose();
+        }
+    }
 
     /// <summary>
     /// Builds a cluster LOD hierarchy from the input meshlet data.
@@ -1082,10 +1090,11 @@ internal static unsafe partial class MeshProcessor
             meshletIndices[i] = i;
         }
 
-        var meshletsSpan = new ReadOnlySpan<Meshlet>(meshletData.meshlets.GetUnsafePtr(), meshletData.meshlets.Count);
+        var binaryNodes = new UnsafeList<TempBinaryNode>(meshletData.meshletCount * 2, AllocationHandle.Persistent);
 
-        using var binaryNodes = new UnsafeList<TempBinaryNode>(meshletData.meshletCount * 2, AllocationHandle.Persistent);
+        try
-        var rootIndex = BuildBinaryTree(binaryNodes, meshletIndices, 0, meshletIndices.Length, meshletsSpan);
+        {
+            var rootIndex = BuildBinaryTree(ref binaryNodes, meshletIndices, 0, meshletIndices.Length, meshletData.meshlets);
 
             if (!meshletData.hierarchyNodes.IsCreated)
             {
@@ -1121,4 +1130,9 @@ internal static unsafe partial class MeshProcessor
                 CollapseTo4Ary(binaryNodes, rootIndex, meshletData.hierarchyNodes);
             }
         }
+        finally
+        {
+            binaryNodes.Dispose();
+        }
+    }
 }

src/Editor/Ghost.Editor.Core/Properties/launchSettings.json

@@ -0,0 +1,8 @@
+{
+  "profiles": {
+    "Ghost.Editor.Core": {
+      "commandName": "Project",
+      "debugEngines": "managed"
+    }
+  }
+}

src/GhostEngine.slnx

@@ -7,7 +7,9 @@
   <Folder Name="/Editor/">
     <Project Path="Editor/Ghost.DSL/Ghost.DSL.csproj" />
     <Project Path="Editor/Ghost.Editor.Core/Ghost.Editor.Core.csproj">
-      <Platform Solution="Debug|x64" Project="x64" />
+      <Platform Solution="*|ARM64" Project="ARM64" />
+      <Platform Solution="*|x64" Project="x64" />
+      <Platform Solution="*|x86" Project="x86" />
     </Project>
     <Project Path="Editor/Ghost.Editor/Ghost.Editor.csproj">
       <Platform Solution="*|ARM64" Project="ARM64" />

src/Runtime/Ghost.Core/Ghost.Core.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
-    <DefineConstants>$(DefineConstants);MHP_ENABLE_SAFETY_CHECKS;MHP_ENABLE_MIMALLOC;MHP_FASTMATH</DefineConstants>
+    <DefineConstants>$(DefineConstants);MHP_ENABLE_MIMALLOC;MHP_FASTMATH</DefineConstants>
     <IsAotCompatible>True</IsAotCompatible>
     <IsTrimmable>True</IsTrimmable>
   </PropertyGroup>