Fix for avg sprites

temporarily?

AssetStudio.PInvoke/AssetStudio.PInvoke.csproj

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net8.0;net8.0-windows;net9.0;net9.0-windows</TargetFrameworks>
+    <TargetFrameworks>net472;net6.0;net6.0-windows;net7.0;net7.0-windows;net8.0;net8.0-windows</TargetFrameworks>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <Version>0.19.0.0</Version>
+    <Version>1.2.0</Version>
     <Copyright>Copyright © Perfare 2020-2022; Copyright © hozuki 2020</Copyright>
     <DebugType>embedded</DebugType>
   </PropertyGroup>

AssetStudio.PInvoke/DllLoader.cs

@@ -11,7 +11,7 @@ namespace AssetStudio.PInvoke
     {
         public static void PreloadDll(string dllName)
         {
-            var localPath = Process.GetCurrentProcess().MainModule?.FileName;
+            var localPath = Process.GetCurrentProcess().MainModule.FileName;
             var localDir = Path.GetDirectoryName(localPath);
 
             // Not using OperatingSystem.Platform.
@@ -35,6 +35,7 @@ namespace AssetStudio.PInvoke
 
         private static class Win32
         {
+
             internal static void LoadDll(string dllDir, string dllName)
             {
                 var dllFileName = $"{dllName}.dll";

AssetStudio/7zip/Common/CRC.cs

@@ -22,26 +22,26 @@ namespace SevenZip
 			}
 		}
 
-		private uint _value = 0xFFFFFFFF;
+		uint _value = 0xFFFFFFFF;
 
 		public void Init() { _value = 0xFFFFFFFF; }
 
 		public void UpdateByte(byte b)
 		{
-			_value = Table[(byte)_value ^ b] ^ (_value >> 8);
+			_value = Table[(((byte)(_value)) ^ b)] ^ (_value >> 8);
 		}
 
 		public void Update(byte[] data, uint offset, uint size)
 		{
 			for (uint i = 0; i < size; i++)
-				_value = Table[(byte)_value ^ data[offset + i]] ^ (_value >> 8);
+				_value = Table[(((byte)(_value)) ^ data[offset + i])] ^ (_value >> 8);
 		}
 
 		public uint GetDigest() { return _value ^ 0xFFFFFFFF; }
 
-		public static uint CalculateDigest(byte[] data, uint offset, uint size)
+		static uint CalculateDigest(byte[] data, uint offset, uint size)
 		{
-			var crc = new CRC();
+			CRC crc = new CRC();
 			// crc.Init();
 			crc.Update(data, offset, size);
 			return crc.GetDigest();
@@ -49,7 +49,7 @@ namespace SevenZip
 
 		static bool VerifyDigest(uint digest, byte[] data, uint offset, uint size)
 		{
-			return CalculateDigest(data, offset, size) == digest;
+			return (CalculateDigest(data, offset, size) == digest);
 		}
 	}
 }

AssetStudio/7zip/Compress/LZMA/LzmaDecoder.cs

@@ -1,7 +1,6 @@
 // LzmaDecoder.cs
 
 using System;
-using AssetStudio;
 
 namespace SevenZip.Compression.LZMA
 {
@@ -248,8 +247,6 @@ namespace SevenZip.Compression.LZMA
 				m_OutWindow.PutByte(b);
 				nowPos64++;
 			}
-
-			Progress.Reset();
 			while (nowPos64 < outSize64)
 			{
 				// UInt64 next = Math.Min(nowPos64 + (1 << 18), outSize64);
@@ -341,8 +338,6 @@ namespace SevenZip.Compression.LZMA
 						}
 						m_OutWindow.CopyBlock(rep0, len);
 						nowPos64 += len;
-
-						Progress.Report((int)(nowPos64 * 100f / outSize64), 100);
 					}
 				}
 			}

AssetStudio/AssetStudio.csproj

@@ -1,23 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;net8.0;net8.0-windows;net9.0;net9.0-windows</TargetFrameworks>
-    <Version>0.19.0.0</Version>
-    <Copyright>Copyright © Perfare 2018-2022; Copyright © aelurum 2021-2025</Copyright>
+    <TargetFrameworks>net472;net6.0;net6.0-windows;net7.0;net7.0-windows;net8.0;net8.0-windows</TargetFrameworks>
+    <Version>1.2.0</Version>
+    <Copyright>Copyright © Perfare 2018-2022; Copyright © aelurum 2025</Copyright>
     <DebugType>embedded</DebugType>
   </PropertyGroup>
-  
+
   <ItemGroup>
-      <PackageReference Include="ZstdSharp.Port" Version="0.8.6" />
-      <PackageReference Include="K4os.Compression.LZ4" Version="1.3.8" />
+    <PackageReference Include="K4os.Compression.LZ4" Version="1.3.8" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net472' ">
+    <PackageReference Include="System.Memory" Version="4.5.5" />
     <PackageReference Include="System.IO.Compression" Version="4.3.0" />
-    <PackageReference Include="System.Text.Json" Version="9.0.8" />
-    <PackageReference Include="Microsoft.Bcl.Numerics" Version="9.0.8" />
-
-    <ProjectReference Include="..\AssetStudio.PInvoke\AssetStudio.PInvoke.csproj" />
   </ItemGroup>
 
 </Project>

AssetStudio/AssetsManager.cs

@@ -1,78 +1,53 @@
 using System;
-using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Text;
-using System.Text.Json.Serialization;
-using System.Text.Json;
-using AssetStudio.CustomOptions;
-using AssetStudio.CustomOptions.Asmo;
 using static AssetStudio.ImportHelper;
 
 namespace AssetStudio
 {
     public class AssetsManager
     {
-        public bool LoadViaTypeTree = true;
-        public bool MeshLazyLoad = true;
-        public ImportOptions Options = new ImportOptions();
-        public readonly List<Action<OptionsFile>> OptionLoaders = new List<Action<OptionsFile>>();
-        public readonly List<SerializedFile> AssetsFileList = new List<SerializedFile>();
+        public string SpecifyUnityVersion;
+        public List<SerializedFile> assetsFileList = new List<SerializedFile>();
+        private HashSet<ClassIDType> filteredAssetTypesList = new HashSet<ClassIDType>();
 
         internal Dictionary<string, int> assetsFileIndexCache = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase);
-        internal ConcurrentDictionary<string, BinaryReader> resourceFileReaders = new ConcurrentDictionary<string, BinaryReader>(StringComparer.OrdinalIgnoreCase);
+        internal Dictionary<string, BinaryReader> resourceFileReaders = new Dictionary<string, BinaryReader>(StringComparer.OrdinalIgnoreCase);
 
-        private readonly List<string> importFiles = new List<string>();
-        private readonly HashSet<ClassIDType> filteredAssetTypesList = new HashSet<ClassIDType>();
-        private readonly HashSet<string> importFilesHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-        private readonly HashSet<string> noexistFiles = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-        private readonly HashSet<string> assetsFileListHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-
-        public AssetsManager()
-        {
-            OptionLoaders.Add(LoadImportOptions);
-        }
+        private List<string> importFiles = new List<string>();
+        private HashSet<string> importFilesHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        private HashSet<string> noexistFiles = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
+        private HashSet<string> assetsFileListHash = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
 
         public void SetAssetFilter(params ClassIDType[] classIDTypes)
         {
-            filteredAssetTypesList.UnionWith(new[]
+            if (filteredAssetTypesList.Count == 0)
             {
-                ClassIDType.AssetBundle,
-                ClassIDType.ResourceManager,
-                ClassIDType.GameObject,
-                ClassIDType.Transform,
-                ClassIDType.RectTransform,
-            });
+                filteredAssetTypesList.UnionWith(new HashSet<ClassIDType>
+                {
+                    ClassIDType.AssetBundle,
+                    ClassIDType.ResourceManager,
+                });
+            }
 
             if (classIDTypes.Contains(ClassIDType.MonoBehaviour))
             {
                 filteredAssetTypesList.Add(ClassIDType.MonoScript);
             }
-            if (classIDTypes.Contains(ClassIDType.Sprite))
+            if (classIDTypes.Contains(ClassIDType.Sprite) || classIDTypes.Contains(ClassIDType.AkPortraitSprite))
             {
-                filteredAssetTypesList.Add(ClassIDType.Texture2D);
-                filteredAssetTypesList.Add(ClassIDType.SpriteAtlas);
+                filteredAssetTypesList.UnionWith(new HashSet<ClassIDType>
+                {
+                    ClassIDType.Texture2D,
+                    ClassIDType.SpriteAtlas,
+                    ClassIDType.MonoBehaviour,
+                    ClassIDType.MonoScript
+                });
             }
-            if (classIDTypes.Contains(ClassIDType.Animator))
-            {
-                filteredAssetTypesList.Add(ClassIDType.AnimatorController);
-                filteredAssetTypesList.Add(ClassIDType.AnimatorOverrideController);
-                filteredAssetTypesList.Add(ClassIDType.Animation);
-                filteredAssetTypesList.Add(ClassIDType.AnimationClip);
-                filteredAssetTypesList.Add(ClassIDType.Avatar);
-                filteredAssetTypesList.Add(ClassIDType.Material);
-                filteredAssetTypesList.Add(ClassIDType.MeshFilter);
-                filteredAssetTypesList.Add(ClassIDType.MeshRenderer);
-                filteredAssetTypesList.Add(ClassIDType.SkinnedMeshRenderer);
-            }
-            if (classIDTypes.Contains(ClassIDType.AnimatorController))
-            {
-                filteredAssetTypesList.Add(ClassIDType.Animator);
-                filteredAssetTypesList.Add(ClassIDType.AnimatorOverrideController);
-            }
-
+            
             filteredAssetTypesList.UnionWith(classIDTypes);
         }
 
@@ -81,28 +56,32 @@ namespace AssetStudio
             SetAssetFilter(classIDTypeList.ToArray());
         }
 
-        public void LoadFilesAndFolders(params string[] paths)
+        public void LoadFilesAndFolders(params string[] path)
         {
-            LoadFilesAndFolders(out _, paths.ToList());
+            List<string> pathList = new List<string>();
+            pathList.AddRange(path);
+            LoadFilesAndFolders(out _, pathList);
         }
 
-        public void LoadFilesAndFolders(out string parentPath, params string[] paths)
+        public void LoadFilesAndFolders(out string parentPath, params string[] path)
         {
-            LoadFilesAndFolders(out parentPath, paths.ToList());
+            List<string> pathList = new List<string>();
+            pathList.AddRange(path);
+            LoadFilesAndFolders(out parentPath, pathList);
         }
 
         public void LoadFilesAndFolders(out string parentPath, List<string> pathList)
         {
-            var fileList = new List<string>();
-            var filesInPath = false;
+            List<string> fileList = new List<string>();
+            bool filesInPath = false;
             parentPath = "";
             foreach (var path in pathList)
             {
                 var fullPath = Path.GetFullPath(path);
                 if (Directory.Exists(fullPath))
                 {
-                    var parent = Directory.GetParent(fullPath)?.FullName;
-                    if (!filesInPath && (parentPath == "" || parentPath?.Length > parent?.Length))
+                    var parent = Directory.GetParent(fullPath).FullName;
+                    if (!filesInPath && (parentPath == "" || parentPath.Length > parent.Length))
                     {
                         parentPath = parent;
                     }
@@ -120,8 +99,6 @@ namespace AssetStudio
             {
                 MergeSplitAssets(parentPath);
             }
-            LoadOptionFiles(fileList);
-            
             var toReadFile = ProcessingSplitFiles(fileList);
             fileList.Clear();
             pathList.Clear();
@@ -141,44 +118,35 @@ namespace AssetStudio
             //use a for loop because list size can change
             for (var i = 0; i < importFiles.Count; i++)
             {
-                if (LoadFile(importFiles[i]))
-                {
-                    Progress.Report(i + 1, importFiles.Count);
-                }
-                else
-                {
-                    break;
-                }
+                LoadFile(importFiles[i]);
+                Progress.Report(i + 1, importFiles.Count);
             }
 
             importFiles.Clear();
             importFilesHash.Clear();
             noexistFiles.Clear();
             assetsFileListHash.Clear();
-            if (AssetsFileList.Count == 0)
-                return;
 
             ReadAssets();
             ProcessAssets();
         }
 
-        private bool LoadFile(string fullName)
+        private void LoadFile(string fullName)
         {
             var reader = new FileReader(fullName);
-            return LoadFile(reader);
+            LoadFile(reader);
         }
 
-        private bool LoadFile(FileReader reader, bool fromZip = false)
+        private void LoadFile(FileReader reader)
         {
-            if (reader == null)
-                return false;
-
-            switch (reader.FileType)
+            switch (reader?.FileType)
             {
                 case FileType.AssetsFile:
-                    return LoadAssetsFile(reader, fromZip);
+                    LoadAssetsFile(reader);
+                    break;
                 case FileType.BundleFile:
-                    return LoadBundleFile(reader);
+                    LoadBundleFile(reader);
+                    break;
                 case FileType.WebFile:
                     LoadWebFile(reader);
                     break;
@@ -191,27 +159,20 @@ namespace AssetStudio
                 case FileType.ZipFile:
                     LoadZipFile(reader);
                     break;
-                case FileType.ResourceFile when !fromZip:
-                    reader.Dispose();
-                    break;
             }
-            return true;
         }
 
-        private bool LoadAssetsFile(FileReader reader, bool fromZip)
+        private void LoadAssetsFile(FileReader reader)
         {
             if (!assetsFileListHash.Contains(reader.FileName))
             {
-                Logger.Info($"Loading \"{reader.FullPath}\"");
+                Logger.Info($"Loading {reader.FullPath}");
                 try
                 {
                     var assetsFile = new SerializedFile(reader, this);
-                    var dirName = Path.GetDirectoryName(reader.FullPath);
                     CheckStrippedVersion(assetsFile);
-                    AssetsFileList.Add(assetsFile);
+                    assetsFileList.Add(assetsFile);
                     assetsFileListHash.Add(assetsFile.fileName);
-                    if (fromZip)
-                        return true;
 
                     foreach (var sharedFile in assetsFile.m_Externals)
                     {
@@ -219,12 +180,12 @@ namespace AssetStudio
 
                         if (!importFilesHash.Contains(sharedFileName))
                         {
-                            var sharedFilePath = Path.Combine(dirName, sharedFileName);
+                            var sharedFilePath = Path.Combine(Path.GetDirectoryName(reader.FullPath), sharedFileName);
                             if (!noexistFiles.Contains(sharedFilePath))
                             {
                                 if (!File.Exists(sharedFilePath))
                                 {
-                                    var findFiles = Directory.GetFiles(dirName, sharedFileName, SearchOption.AllDirectories);
+                                    var findFiles = Directory.GetFiles(Path.GetDirectoryName(reader.FullPath), sharedFileName, SearchOption.AllDirectories);
                                     if (findFiles.Length > 0)
                                     {
                                         sharedFilePath = findFiles[0];
@@ -238,7 +199,6 @@ namespace AssetStudio
                                 else
                                 {
                                     noexistFiles.Add(sharedFilePath);
-                                    Logger.Warning($"Dependency wasn't found: {sharedFilePath}");
                                 }
                             }
                         }
@@ -248,23 +208,21 @@ namespace AssetStudio
                 {
                     Logger.Error(e.Message);
                     reader.Dispose();
-                    return false;
                 }
                 catch (Exception e)
                 {
-                    Logger.Warning($"Failed to read assets file \"{reader.FullPath}\"\n{e}");
+                    Logger.Warning($"Error while reading assets file {reader.FullPath}\r\n{e}");
                     reader.Dispose();
                 }
             }
             else
             {
-                Logger.Info($"Skipping \"{reader.FullPath}\"");
+                Logger.Info($"Skipping {reader.FullPath}");
                 reader.Dispose();
             }
-            return true;
         }
 
-        private bool LoadAssetsFromMemory(FileReader reader, string originalPath, UnityVersion assetBundleUnityVer = null)
+        private void LoadAssetsFromMemory(FileReader reader, string originalPath, string unityVersion = null)
         {
             if (!assetsFileListHash.Contains(reader.FileName))
             {
@@ -272,117 +230,71 @@ namespace AssetStudio
                 {
                     var assetsFile = new SerializedFile(reader, this);
                     assetsFile.originalPath = originalPath;
-                    if (assetBundleUnityVer != null && assetsFile.header.m_Version < SerializedFileFormatVersion.Unknown_7)
+                    if (!string.IsNullOrEmpty(unityVersion) && assetsFile.header.m_Version < SerializedFileFormatVersion.Unknown_7)
                     {
-                        assetsFile.version = assetBundleUnityVer;
+                        assetsFile.SetVersion(unityVersion);
                     }
-                    CheckStrippedVersion(assetsFile, assetBundleUnityVer);
-                    AssetsFileList.Add(assetsFile);
+                    CheckStrippedVersion(assetsFile);
+                    assetsFileList.Add(assetsFile);
                     assetsFileListHash.Add(assetsFile.fileName);
                 }
                 catch (NotSupportedException e)
                 {
                     Logger.Error(e.Message);
-                    reader.Dispose();
-                    return false;
+                    resourceFileReaders.Add(reader.FileName, reader);
                 }
                 catch (Exception e)
                 {
-                    Logger.Warning($"Failed to read assets file \"{reader.FullPath}\" from {Path.GetFileName(originalPath)}\n{e}");
-                    resourceFileReaders.TryAdd(reader.FileName, reader);
+                    Logger.Warning($"Error while reading assets file {reader.FullPath} from {Path.GetFileName(originalPath)}\r\n{e}");
+                    resourceFileReaders.Add(reader.FileName, reader);
                 }
             }
             else
-            {
-                Logger.Info($"Skipping \"{originalPath}\" ({reader.FileName})");
-            }
-            return true;
+                Logger.Info($"Skipping {originalPath} ({reader.FileName})");
         }
 
-        private bool LoadBundleFile(FileReader reader, string originalPath = null)
+        private void LoadBundleFile(FileReader reader, string originalPath = null)
         {
-            Logger.Info($"Loading \"{reader.FullPath}\"");
-            Logger.Debug($"Bundle offset: {reader.Position}");
-            var bundleStream = new OffsetStream(reader);
-            var bundleReader = new FileReader(reader.FullPath, bundleStream);
-            var isLoaded = false;
-            
+            Logger.Info("Loading " + reader.FullPath);
             try
             {
-                var bundleFile = new BundleFile(bundleReader, Options.BundleOptions);
-                isLoaded = LoadBundleFiles(bundleReader, bundleFile, originalPath);
-                if (!isLoaded)
-                    return false;
-
-                while (bundleFile.IsDataAfterBundle && isLoaded)
+                var bundleFile = new BundleFile(reader, SpecifyUnityVersion);
+                foreach (var file in bundleFile.fileList)
                 {
-                    isLoaded = false;
-                    bundleStream.Offset = reader.Position;
-                    bundleReader = new FileReader($"{reader.FullPath}_0x{bundleStream.Offset:X}", bundleStream);
-                    if (bundleReader.FileType != FileType.BundleFile)
+                    var dummyPath = Path.Combine(Path.GetDirectoryName(reader.FullPath), file.fileName);
+                    var subReader = new FileReader(dummyPath, file.stream);
+                    if (subReader.FileType == FileType.AssetsFile)
                     {
-                        Logger.Debug("Unknown data was detected after the end of the bundle.");
-                        break;
+                        LoadAssetsFromMemory(subReader, originalPath ?? reader.FullPath, bundleFile.m_Header.unityRevision);
                     }
-                    if (bundleReader.Position > 0)
+                    else if (!resourceFileReaders.ContainsKey(file.fileName))
                     {
-                        bundleStream.Offset += bundleReader.Position;
-                        bundleReader.FullPath = $"{reader.FullPath}_0x{bundleStream.Offset:X}";
-                        bundleReader.FileName = $"{reader.FileName}_0x{bundleStream.Offset:X}";
+                        resourceFileReaders.Add(file.fileName, subReader);
                     }
-                    Logger.Info($"[MultiBundle] Loading \"{reader.FileName}\" from offset: 0x{bundleStream.Offset:X}");
-                    bundleFile = new BundleFile(bundleReader, Options.BundleOptions, isMultiBundle: true);
-                    isLoaded = LoadBundleFiles(bundleReader, bundleFile, originalPath ?? reader.FullPath);
                 }
-                return isLoaded;
             }
             catch (NotSupportedException e)
             {
                 Logger.Error(e.Message);
-                return false;
             }
             catch (Exception e)
             {
-                var str = $"Error while reading bundle file \"{bundleReader.FullPath}\"";
+                var str = $"Error while reading bundle file {reader.FullPath}";
                 if (originalPath != null)
                 {
                     str += $" from {Path.GetFileName(originalPath)}";
                 }
-                Logger.Warning($"{str}\n{e}");
-                return true;
+                Logger.Warning($"{str}\r\n{e}");
             }
             finally
             {
-                if (!isLoaded)
-                    bundleReader.Dispose();
+                reader.Dispose();
             }
         }
 
-        private bool LoadBundleFiles(FileReader reader, BundleFile bundleFile, string originalPath = null)
-        {
-            foreach (var file in bundleFile.fileList)
-            {
-                if (file.stream == null)
-                    continue;
-                file.stream.Position = 0; //go to file offset
-                var dummyPath = Path.Combine(Path.GetDirectoryName(reader.FullPath), file.fileName);
-                var subReader = new FileReader(dummyPath, file.stream);
-                if (subReader.FileType == FileType.AssetsFile)
-                {
-                    if (!LoadAssetsFromMemory(subReader, originalPath ?? reader.FullPath, bundleFile.m_Header.unityRevision))
-                        return false;
-                }
-                else
-                {
-                    resourceFileReaders.TryAdd(file.fileName, subReader);
-                }
-            }
-            return true;
-        }
-
         private void LoadWebFile(FileReader reader)
         {
-            Logger.Info($"Loading \"{reader.FullPath}\"");
+            Logger.Info("Loading " + reader.FullPath);
             try
             {
                 var webFile = new WebFile(reader);
@@ -402,14 +314,14 @@ namespace AssetStudio
                             LoadWebFile(subReader);
                             break;
                         case FileType.ResourceFile:
-                            resourceFileReaders.TryAdd(file.fileName, subReader);
+                            resourceFileReaders[file.fileName] = subReader; //TODO
                             break;
                     }
                 }
             }
             catch (Exception e)
             {
-                Logger.Error($"Error while reading web file \"{reader.FullPath}\"", e);
+                Logger.Error($"Error while reading web file {reader.FullPath}", e);
             }
             finally
             {
@@ -446,16 +358,15 @@ namespace AssetStudio
                     }
 
                     // merge split files and load the result
-                    for (var i = 0; i < splitFiles.Count; i++)
+                    foreach (string basePath in splitFiles)
                     {
-                        var basePath = splitFiles[i].Replace("\\", "/");
                         try
                         {
                             Stream splitStream = new MemoryStream();
-                            var j = 0;
+                            int i = 0;
                             while (true)
                             {
-                                string path = $"{basePath}.split{j++}";
+                                string path = $"{basePath}.split{i++}";
                                 ZipArchiveEntry entry = archive.GetEntry(path);
                                 if (entry == null)
                                     break;
@@ -466,12 +377,11 @@ namespace AssetStudio
                             }
                             splitStream.Seek(0, SeekOrigin.Begin);
                             FileReader entryReader = new FileReader(basePath, splitStream);
-                            if (!LoadFile(entryReader, fromZip: true))
-                                break;
+                            LoadFile(entryReader);
                         }
                         catch (Exception e)
                         {
-                            Logger.Warning($"Error while reading zip split file \"{basePath}\"\n{e}");
+                            Logger.Warning($"Error while reading zip split file {basePath}\r\n{e}");
                         }
                     }
 
@@ -481,8 +391,6 @@ namespace AssetStudio
                     Progress.Reset();
                     foreach (ZipArchiveEntry entry in archive.Entries)
                     {
-                        if (entry.Length == 0)
-                            continue;
                         try
                         {
                             string dummyPath = Path.Combine(Path.GetDirectoryName(reader.FullPath), reader.FileName, entry.FullName);
@@ -497,19 +405,20 @@ namespace AssetStudio
                             streamReader.Position = 0;
 
                             FileReader entryReader = new FileReader(dummyPath, streamReader);
-                            if (!LoadFile(entryReader, fromZip: true))
-                                break;
-
+                            LoadFile(entryReader);
                             if (entryReader.FileType == FileType.ResourceFile)
                             {
                                 entryReader.Position = 0;
-                                resourceFileReaders.TryAdd(entry.Name, entryReader);
+                                if (!resourceFileReaders.ContainsKey(entry.Name))
+                                {
+                                    resourceFileReaders.Add(entry.Name, entryReader);
+                                }
                             }
                             Progress.Report(++k, progressCount);
                         }
                         catch (Exception e)
                         {
-                            Logger.Warning($"Error while reading zip entry \"{entry.FullName}\"\n{e}");
+                            Logger.Warning($"Error while reading zip entry {entry.FullName}\r\n{e}");
                         }
                     }
                 }
@@ -524,92 +433,26 @@ namespace AssetStudio
             }
         }
 
-        public void LoadOptionFiles(List<string> pathList)
+        public void CheckStrippedVersion(SerializedFile assetsFile)
         {
-            if (pathList.Count == 0)
-                return;
-
-            var optionFileIndexes = new List<int>();
-            for (var i = 0; i < pathList.Count; i++)
+            if (assetsFile.IsVersionStripped && string.IsNullOrEmpty(SpecifyUnityVersion))
             {
-                var path = pathList[i];
-                if (!path.EndsWith(OptionsFile.Extension, StringComparison.OrdinalIgnoreCase))
-                    continue;
-
-                optionFileIndexes.Add(i);
-                var optionsFile = LoadOptionsFile(new FileReader(path));
-                if (optionsFile == null)
-                    continue;
-
-                foreach (var optionsLoader in OptionLoaders)
-                {
-                    optionsLoader(optionsFile);
-                }
+                throw new NotSupportedException("The Unity version has been stripped, please set the version in the options");
             }
-
-            for (var i = 0; i < optionFileIndexes.Count; i++)
+            if (!string.IsNullOrEmpty(SpecifyUnityVersion))
             {
-                pathList.RemoveAt(optionFileIndexes[i] - i);
-            }
-        }
-
-        private static OptionsFile LoadOptionsFile(FileReader reader)
-        {
-            Logger.Info($"Loading options file \"{reader.FullPath}\"");
-            try
-            {
-                return new OptionsFile(reader);
-            }
-            catch (Exception e)
-            {
-                Logger.Warning($"Error while loading options file \"{reader.FullPath}\"\n{e}");
-                return null;
-            }
-            finally
-            {
-                reader.Dispose();
-            }
-        }
-
-        private void LoadImportOptions(OptionsFile optionsFile)
-        {
-            try
-            {
-                var importOptions = ImportOptions.FromOptionsFile(optionsFile);
-                if (importOptions == null)
-                    return;
-                Options = importOptions;
-                Logger.Info("Import options successfully loaded.");
-            }
-            catch (Exception e)
-            {
-                Logger.Warning($"Error while reading import options\n{e}");
-            }
-        }
-
-        public void CheckStrippedVersion(SerializedFile assetsFile, UnityVersion bundleUnityVer = null)
-        {
-            if (assetsFile.version.IsStripped && Options.CustomUnityVersion == null)
-            {
-                var msg = "The asset's Unity version has been stripped, please set the version in the options.";
-                if (bundleUnityVer != null && !bundleUnityVer.IsStripped)
-                    msg += $"\n\nAssumed Unity version based on asset bundle: {bundleUnityVer}";
-                throw new NotSupportedException(msg);
-            }
-            if (Options.CustomUnityVersion != null)
-            {
-                assetsFile.version = Options.CustomUnityVersion;
+                assetsFile.SetVersion(SpecifyUnityVersion);
             }
         }
 
         public void Clear()
         {
-            foreach (var assetsFile in AssetsFileList)
+            foreach (var assetsFile in assetsFileList)
             {
                 assetsFile.Objects.Clear();
                 assetsFile.reader.Close();
             }
-            AssetsFileList.Clear();
+            assetsFileList.Clear();
 
             foreach (var resourceFileReader in resourceFileReaders)
             {
@@ -624,20 +467,11 @@ namespace AssetStudio
         {
             Logger.Info("Read assets...");
 
-            var jsonOptions = new JsonSerializerOptions
-            {
-                Converters = { new JsonConverterHelper.ByteArrayConverter(), new JsonConverterHelper.PPtrConverter(), new JsonConverterHelper.KVPConverter() },
-                NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals,
-                PropertyNameCaseInsensitive = true,
-                IncludeFields = true,
-            };
-
-            var progressCount = AssetsFileList.Sum(x => x.m_Objects.Count);
-            var i = 0;
+            var progressCount = assetsFileList.Sum(x => x.m_Objects.Count);
+            int i = 0;
             Progress.Reset();
-            foreach (var assetsFile in AssetsFileList)
+            foreach (var assetsFile in assetsFileList)
             {
-                JsonConverterHelper.AssetsFile = assetsFile;
                 foreach (var objectInfo in assetsFile.m_Objects)
                 {
                     var objectReader = new ObjectReader(assetsFile.reader, assetsFile, objectInfo);
@@ -654,9 +488,7 @@ namespace AssetStudio
                                 obj = new Animation(objectReader);
                                 break;
                             case ClassIDType.AnimationClip:
-                                obj = objectReader.serializedType?.m_Type != null && LoadViaTypeTree
-                                    ? new AnimationClip(objectReader, TypeTreeHelper.ReadTypeByteArray(objectReader.serializedType.m_Type, objectReader), jsonOptions, objectInfo)
-                                    : new AnimationClip(objectReader);
+                                obj = new AnimationClip(objectReader);
                                 break;
                             case ClassIDType.Animator:
                                 obj = new Animator(objectReader);
@@ -676,9 +508,6 @@ namespace AssetStudio
                             case ClassIDType.Avatar:
                                 obj = new Avatar(objectReader);
                                 break;
-                            case ClassIDType.BuildSettings:
-                                obj = new BuildSettings(objectReader);
-                                break;
                             case ClassIDType.Font:
                                 obj = new Font(objectReader);
                                 break;
@@ -686,9 +515,7 @@ namespace AssetStudio
                                 obj = new GameObject(objectReader);
                                 break;
                             case ClassIDType.Material:
-                                obj = objectReader.serializedType?.m_Type != null && LoadViaTypeTree
-                                    ? new Material(objectReader, TypeTreeHelper.ReadTypeByteArray(objectReader.serializedType.m_Type, objectReader), jsonOptions)
-                                    : new Material(objectReader);
+                                obj = new Material(objectReader);
                                 break;
                             case ClassIDType.Mesh:
                                 obj = new Mesh(objectReader);
@@ -718,7 +545,7 @@ namespace AssetStudio
                                 obj = new RectTransform(objectReader);
                                 break;
                             case ClassIDType.Shader:
-                                if (objectReader.version < 2021)
+                                if (objectReader.version[0] < 2021)
                                     obj = new Shader(objectReader);
                                 break;
                             case ClassIDType.SkinnedMeshRenderer:
@@ -734,14 +561,7 @@ namespace AssetStudio
                                 obj = new TextAsset(objectReader);
                                 break;
                             case ClassIDType.Texture2D:
-                                obj = objectReader.serializedType?.m_Type != null && LoadViaTypeTree
-                                    ? new Texture2D(objectReader, TypeTreeHelper.ReadTypeByteArray(objectReader.serializedType.m_Type, objectReader), jsonOptions)
-                                    : new Texture2D(objectReader);
-                                break;
-                            case ClassIDType.Texture2DArray:
-                                obj = objectReader.serializedType?.m_Type != null && LoadViaTypeTree
-                                    ? new Texture2DArray(objectReader, TypeTreeHelper.ReadTypeByteArray(objectReader.serializedType.m_Type, objectReader), jsonOptions)
-                                    : new Texture2DArray(objectReader);
+                                obj = new Texture2D(objectReader);
                                 break;
                             case ClassIDType.Transform:
                                 obj = new Transform(objectReader);
@@ -757,9 +577,7 @@ namespace AssetStudio
                                 break;
                         }
                         if (obj != null)
-                        {
                             assetsFile.AddObject(obj);
-                        }
                     }
                     catch (Exception e)
                     {
@@ -782,7 +600,7 @@ namespace AssetStudio
         {
             Logger.Info("Process assets...");
 
-            foreach (var assetsFile in AssetsFileList)
+            foreach (var assetsFile in assetsFileList)
             {
                 foreach (var obj in assetsFile.Objects)
                 {
@@ -812,34 +630,6 @@ namespace AssetStudio
                                     case Animation m_Animation:
                                         m_GameObject.m_Animation = m_Animation;
                                         break;
-                                    case MonoBehaviour m_MonoBehaviour:
-                                        if (m_MonoBehaviour.m_Script.TryGet(out var m_Script))
-                                        {
-                                            switch (m_Script.m_ClassName)
-                                            {
-                                                case "CubismModel":
-                                                    if (m_GameObject.m_Transform == null)
-                                                        break;
-                                                    m_GameObject.CubismModel = new CubismModel(m_GameObject)
-                                                    {
-                                                        CubismModelMono = m_MonoBehaviour
-                                                    };
-                                                    break;
-                                                case "CubismPhysicsController":
-                                                    if (m_GameObject.CubismModel != null)
-                                                        m_GameObject.CubismModel.PhysicsController = m_MonoBehaviour;
-                                                    break;
-                                                case "CubismFadeController":
-                                                    if (m_GameObject.CubismModel != null)
-                                                        m_GameObject.CubismModel.FadeController = m_MonoBehaviour;
-                                                    break;
-                                                case "CubismExpressionController":
-                                                    if (m_GameObject.CubismModel != null)
-                                                        m_GameObject.CubismModel.ExpressionController = m_MonoBehaviour;
-                                                    break;
-                                            }
-                                        }
-                                        break;
                                 }
                             }
                         }
@@ -854,17 +644,16 @@ namespace AssetStudio
                                 {
                                     m_Sprite.m_SpriteAtlas.Set(m_SpriteAtlas);
                                 }
-                                else if (m_Sprite.m_SpriteAtlas.TryGet(out var m_SpriteAtlasOld))
+                                else if (m_Sprite.m_SpriteAtlas.TryGet(out var m_SpriteAtlaOld))
                                 {
-                                    if (m_SpriteAtlasOld.m_IsVariant)
+                                    if (m_SpriteAtlaOld.m_IsVariant)
                                     {
                                         m_Sprite.m_SpriteAtlas.Set(m_SpriteAtlas);
                                     }
                                 }
                                 else
                                 {
-                                    Logger.Debug($"\"{m_Sprite.m_Name}\": The actual SpriteAtlas PathID \"{m_SpriteAtlas.m_PathID}\" does not match the specified one \"{m_Sprite.m_SpriteAtlas.m_PathID}\".");
-                                    m_Sprite.m_SpriteAtlas.Set(m_SpriteAtlas);
+                                    Logger.Warning($"\"{m_Sprite.m_Name}\": Sprite loading error. SpriteAtlas with PathID: \"{m_Sprite.m_SpriteAtlas.m_PathID}\" was not found.");
                                 }
                             }
                         }

AssetStudio/BigArrayPool.cs

@@ -4,11 +4,7 @@ namespace AssetStudio
 {
     public static class BigArrayPool<T>
     {
-        public static ArrayPool<T> Shared { get; }
-
-        static BigArrayPool()
-        {
-            Shared = ArrayPool<T>.Create(256 * 1024 * 1024, 5);
-        }
+        private static readonly ArrayPool<T> s_shared = ArrayPool<T>.Create(64 * 1024 * 1024, 3);
+        public static ArrayPool<T> Shared => s_shared;
     }
 }

AssetStudio/BuildTarget.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public enum BuildTarget
     {
@@ -48,18 +53,6 @@
         PS5,
         EmbeddedLinux,
         QNX,
-        VisionOS,
-        Switch2,
         UnknownPlatform = 9999
     }
-
-    public enum TuanjieBuildTarget
-    {
-        MiniGame = 47,
-        OpenHarmony,
-        HMIAndroid,
-        ArmLinux,
-        ArmLinuxServer,
-        VisionOS,
-    }
 }

AssetStudio/BuildType.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
+{
+    public class BuildType
+    {
+        private string buildType;
+
+        public BuildType(string type)
+        {
+            buildType = type;
+        }
+
+        public bool IsAlpha => buildType == "a";
+        public bool IsPatch => buildType == "p";
+    }
+}

AssetStudio/BundleCompression/Oodle/Oodle.cs

@@ -1,43 +0,0 @@
-using System;
-using System.Runtime.InteropServices;
-#if NETFRAMEWORK
-using AssetStudio.PInvoke;
-#endif
-
-namespace BundleCompression.Oodle
-{
-    public static class OodleLZ
-    {
-        private const string LibName = "ooz";
-
-#if NETFRAMEWORK
-        static OodleLZ()
-        {
-            DllLoader.PreloadDll(LibName);
-        }
-#endif
-
-        [DllImport(LibName)]
-        private static extern int Ooz_Decompress(
-            in byte srcBuffer,
-            UIntPtr srcLen,
-            ref byte dstBuffer,
-            UIntPtr dstLen,
-            int fuzzSafetyFlag,
-            int crcCheckFlag,
-            int logVerbosityFlag,
-            UIntPtr rawBuffer,
-            UIntPtr rawBufferSize,
-            UIntPtr chunkDecodeCallback,
-            UIntPtr chunkDecodeContext,
-            UIntPtr scratchBuf,
-            UIntPtr scratchBufSize,
-            int threadPhase);
-
-        public static int Decompress(ReadOnlySpan<byte> srcSpanBuffer, Span<byte> dstSpanBuffer)
-        {
-            return Ooz_Decompress(in srcSpanBuffer[0], (UIntPtr)srcSpanBuffer.Length, ref dstSpanBuffer[0], (UIntPtr)dstSpanBuffer.Length,
-                0, 0, 0, UIntPtr.Zero, UIntPtr.Zero, UIntPtr.Zero, UIntPtr.Zero, UIntPtr.Zero, UIntPtr.Zero, 0);
-        }
-    }
-}

AssetStudio/BundleDecompressionHelper.cs

@@ -1,65 +0,0 @@
-using BundleCompression.Lzma;
-using BundleCompression.Oodle;
-using System;
-using System.IO;
-using System.Text.RegularExpressions;
-using K4os.Compression.LZ4;
-using ZstdSharp;
-
-namespace AssetStudio
-{
-    public static class BundleDecompressionHelper
-    {
-        private static readonly Decompressor ZstdDecompressor = new Decompressor();
-        private static readonly string MsgPattern = @"\. ";
-
-        public static MemoryStream DecompressLzmaStream(MemoryStream inStream)
-        {
-            return SevenZipLzma.DecompressStream(inStream);
-        }
-
-        public static long DecompressLzmaStream(Stream compressedStream, Stream decompressedStream, long compressedSize, long decompressedSize, ref string errorMsg)
-        {
-            var numWrite = -1L;
-            try
-            {
-                numWrite = SevenZipLzma.DecompressStream(compressedStream, decompressedStream, compressedSize, decompressedSize);
-            }
-            catch (Exception e)
-            {
-                Logger.Debug(e.ToString());
-                errorMsg = $"({Regex.Split(e.Message, MsgPattern, RegexOptions.CultureInvariant)[0]})";
-            }
-            return numWrite;
-        }
-
-        public static int DecompressBlock(CompressionType type, ReadOnlySpan<byte> srcBuffer, Span<byte> dstBuffer, ref string errorMsg)
-        {
-            var numWrite = -1;
-            try
-            {
-                switch (type)
-                {
-                    case CompressionType.Lz4:
-                    case CompressionType.Lz4HC:
-                        numWrite = LZ4Codec.Decode(srcBuffer, dstBuffer);
-                        break;
-                    case CompressionType.Zstd:
-                        numWrite = ZstdDecompressor.Unwrap(srcBuffer, dstBuffer);
-                        break;
-                    case CompressionType.Oodle:
-                        numWrite = OodleLZ.Decompress(srcBuffer, dstBuffer);
-                        break;
-                    default:
-                        throw new NotSupportedException();
-                }
-            }
-            catch (Exception e)
-            {
-                Logger.Debug(e.ToString());
-                errorMsg = $"({Regex.Split(e.Message, MsgPattern, RegexOptions.CultureInvariant)[0]})";
-            }
-            return numWrite;
-        }
-    }
-}

AssetStudio/BundleFile.cs

@@ -1,8 +1,7 @@
-using System;
+using K4os.Compression.LZ4;
+using System;
 using System.IO;
 using System.Linq;
-using System.Collections.Generic;
-using AssetStudio.CustomOptions;
 
 namespace AssetStudio
 {
@@ -19,8 +18,8 @@ namespace AssetStudio
     [Flags]
     public enum CnEncryptionFlags
     {
-        V1 = 0x200,
-        V2_V3 = 0x1400,
+        OldFlag = 0x200,
+        NewFlag = 0x400
     }
 
     [Flags]
@@ -32,27 +31,21 @@ namespace AssetStudio
 
     public enum CompressionType
     {
-        Auto = -1,
         None,
         Lzma,
         Lz4,
         Lz4HC,
-        Lzham,
-        Zstd, //custom
-        Oodle, //custom
+        Lz4Inv,
     }
 
     public class BundleFile
     {
-        public readonly bool IsDataAfterBundle;
-        private readonly CustomBundleOptions _bundleOptions;
-
         public class Header
         {
             public string signature;
             public uint version;
             public string unityVersion;
-            public UnityVersion unityRevision;
+            public string unityRevision;
             public long size;
             public uint compressedBlocksInfoSize;
             public uint uncompressedBlocksInfoSize;
@@ -78,19 +71,15 @@ namespace AssetStudio
         private StorageBlock[] m_BlocksInfo;
         private Node[] m_DirectoryInfo;
 
-        public List<StreamFile> fileList;
+        public StreamFile[] fileList;
 
-        public BundleFile(FileReader reader, CustomBundleOptions bundleOptions, bool isMultiBundle = false)
+        public BundleFile(FileReader reader, string specUnityVer = "")
         {
-            _bundleOptions = bundleOptions;
             m_Header = new Header();
             m_Header.signature = reader.ReadStringToNull();
             m_Header.version = reader.ReadUInt32();
             m_Header.unityVersion = reader.ReadStringToNull();
-            var revStr = reader.ReadStringToNull();
-            if (!UnityVersion.TryParse(revStr, out m_Header.unityRevision))
-                m_Header.unityRevision = new UnityVersion();
-            
+            m_Header.unityRevision = reader.ReadStringToNull();
             switch (m_Header.signature)
             {
                 case "UnityArchive":
@@ -102,52 +91,49 @@ namespace AssetStudio
                         goto case "UnityFS";
                     }
                     ReadHeaderAndBlocksInfo(reader);
-                    using (reader)
+                    using (var blocksStream = CreateBlocksStream(reader.FullPath))
                     {
-                        ReadFiles(ReadBlocksAndDirectory(reader));
+                        ReadBlocksAndDirectory(reader, blocksStream);
+                        ReadFiles(blocksStream, reader.FullPath);
                     }
                     break;
                 case "UnityFS":
                     ReadHeader(reader);
 
-                    var bundleSize = m_Header.size;
-                    var streamSize = reader.BaseStream.Length;
-                    if (bundleSize > streamSize)
-                        Logger.Warning("Bundle size is incorrect.");
-                    IsDataAfterBundle = streamSize - bundleSize > 200;
-                    
-                    var unityVer = m_Header.unityRevision;
-                    var customUnityVer = _bundleOptions.Options.CustomUnityVersion;
-                    if (customUnityVer != null)
+                    bool isUnityCnEnc = false;
+                    string unityVer = string.IsNullOrEmpty(specUnityVer) ? m_Header.unityRevision : specUnityVer;
+                    int[] ver = new string(unityVer.SkipWhile(x => !char.IsDigit(x)).TakeWhile(x => char.IsDigit(x) || x == '.').ToArray()).Split('.').Select(x => int.Parse(x)).ToArray();
+                    if (ver[0] != 0)
                     {
-                        if (!unityVer.IsStripped && customUnityVer != unityVer)
+                        // https://issuetracker.unity3d.com/issues/files-within-assetbundles-do-not-start-on-aligned-boundaries-breaking-patching-on-nintendo-switch
+                        if (ver[0] < 2020 ||
+                           (ver[0] == 2020 && ver[1] <= 3 && ver[2] < 34) ||
+                           (ver[0] == 2021 && ver[1] <= 3 && ver[2] < 2) ||
+                           (ver[0] == 2022 && ver[1] <= 1 && ver[2] < 1))
                         {
-                            Logger.Warning($"Detected Unity version is different from the specified one ({customUnityVer.FullVersion.Color(ColorConsole.BrightCyan)}).\n" +
-                                $"Assets may load with errors.\n" +
-                                $"It is recommended to specify the detected Unity version: {unityVer.FullVersion.Color(ColorConsole.BrightCyan)}");
+                            isUnityCnEnc = ((CnEncryptionFlags)m_Header.flags & CnEncryptionFlags.OldFlag) != 0;
+                        }
+                        else
+                        {
+                            isUnityCnEnc = ((CnEncryptionFlags)m_Header.flags & CnEncryptionFlags.NewFlag) != 0;                    
                         }
-                        unityVer = customUnityVer;
                     }
-                    UnityCnCheck(reader, unityVer);
-                    
-                    ReadBlocksInfoAndDirectory(reader, unityVer);
-
-                    if (IsUncompressedBundle && !IsDataAfterBundle && !isMultiBundle)
+                    if (isUnityCnEnc)
                     {
-                        Logger.Debug($"[Uncompressed bundle] BlockData count: {m_BlocksInfo.Length}");
-                        ReadFiles(reader.BaseStream, reader.Position);
-                        break;
+                        throw new NotSupportedException("Unsupported bundle file. UnityCN encryption was detected.");
                     }
-                    
-                    ReadFiles(ReadBlocks(reader));
-                    if (!IsDataAfterBundle)
-                        reader.Close();
 
+                    ReadBlocksInfoAndDirectory(reader, ver);
+                    using (var blocksStream = CreateBlocksStream(reader.FullPath))
+                    {
+                        ReadBlocks(reader, blocksStream);
+                        ReadFiles(blocksStream, reader.FullPath);
+                    }
                     break;
             }
         }
 
-        private void ReadHeaderAndBlocksInfo(FileReader reader)
+        private void ReadHeaderAndBlocksInfo(EndianBinaryReader reader)
         {
             if (m_Header.version >= 4)
             {
@@ -161,7 +147,7 @@ namespace AssetStudio
             m_BlocksInfo = new StorageBlock[1];
             for (int i = 0; i < levelCount; i++)
             {
-                var storageBlock = new StorageBlock
+                var storageBlock = new StorageBlock()
                 {
                     compressedSize = reader.ReadUInt32(),
                     uncompressedSize = reader.ReadUInt32(),
@@ -184,24 +170,23 @@ namespace AssetStudio
 
         private Stream CreateBlocksStream(string path)
         {
+            Stream blocksStream;
             var uncompressedSizeSum = m_BlocksInfo.Sum(x => x.uncompressedSize);
-            if (uncompressedSizeSum < int.MaxValue && !_bundleOptions.DecompressToDisk) 
-                return new MemoryStream((int)uncompressedSizeSum);
-
-            if (!Directory.Exists(Path.GetDirectoryName(path)))
+            if (uncompressedSizeSum >= int.MaxValue)
             {
-                var tempDir = Path.Combine(Directory.GetCurrentDirectory(), "Studio_temp");
-                Directory.CreateDirectory(tempDir);
-                var filename = Path.GetFileName(path);
-                var hash = path.GetHashCode();
-                path = Path.Combine(tempDir, $"{filename}_{hash:X}");
+                /*var memoryMappedFile = MemoryMappedFile.CreateNew(null, uncompressedSizeSum);
+                assetsDataStream = memoryMappedFile.CreateViewStream();*/
+                blocksStream = new FileStream(path + ".temp", FileMode.Create, FileAccess.ReadWrite, FileShare.None, 4096, FileOptions.DeleteOnClose);
             }
-            return new TempFileStream(path + ".temp", FileMode.Create);
+            else
+            {
+                blocksStream = new MemoryStream((int)uncompressedSizeSum);
+            }
+            return blocksStream;
         }
 
-        private Stream ReadBlocksAndDirectory(FileReader reader)
+        private void ReadBlocksAndDirectory(EndianBinaryReader reader, Stream blocksStream)
         {
-            var blocksStream = CreateBlocksStream(reader.FullPath);
             var isCompressed = m_Header.signature == "UnityWeb";
             foreach (var blockInfo in m_BlocksInfo)
             {
@@ -210,7 +195,7 @@ namespace AssetStudio
                 {
                     using (var memoryStream = new MemoryStream(uncompressedBytes))
                     {
-                        using (var decompressStream = BundleDecompressionHelper.DecompressLzmaStream(memoryStream))
+                        using (var decompressStream = SevenZipHelper.StreamDecompress(memoryStream))
                         {
                             uncompressedBytes = decompressStream.ToArray();
                         }
@@ -219,11 +204,10 @@ namespace AssetStudio
                 blocksStream.Write(uncompressedBytes, 0, uncompressedBytes.Length);
             }
             blocksStream.Position = 0;
-
             var blocksReader = new EndianBinaryReader(blocksStream);
             var nodesCount = blocksReader.ReadInt32();
             m_DirectoryInfo = new Node[nodesCount];
-            for (var i = 0; i < nodesCount; i++)
+            for (int i = 0; i < nodesCount; i++)
             {
                 m_DirectoryInfo[i] = new Node
                 {
@@ -232,31 +216,37 @@ namespace AssetStudio
                     size = blocksReader.ReadUInt32()
                 };
             }
-
-            return blocksStream;
         }
 
-        private void ReadFiles(Stream inputStream, long blocksOffset = 0)
+        public void ReadFiles(Stream blocksStream, string path)
         {
-            fileList = new List<StreamFile>(m_DirectoryInfo.Length);
-            foreach (var node in m_DirectoryInfo)
+            fileList = new StreamFile[m_DirectoryInfo.Length];
+            for (int i = 0; i < m_DirectoryInfo.Length; i++)
             {
+                var node = m_DirectoryInfo[i];
                 var file = new StreamFile();
-                fileList.Add(file);
+                fileList[i] = file;
                 file.path = node.path;
                 file.fileName = Path.GetFileName(node.path);
-                try
+                if (node.size >= int.MaxValue)
                 {
-                    file.stream = new OffsetStream(inputStream, node.offset + blocksOffset, node.size);
+                    /*var memoryMappedFile = MemoryMappedFile.CreateNew(null, entryinfo_size);
+                    file.stream = memoryMappedFile.CreateViewStream();*/
+                    var extractPath = path + "_unpacked" + Path.DirectorySeparatorChar;
+                    Directory.CreateDirectory(extractPath);
+                    file.stream = new FileStream(extractPath + file.fileName, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
                 }
-                catch (IOException e)
+                else
                 {
-                    Logger.Warning($"Failed to access {file.fileName} file.\n{e}");
+                    file.stream = new MemoryStream((int)node.size);
                 }
+                blocksStream.Position = node.offset;
+                blocksStream.CopyTo(file.stream, node.size);
+                file.stream.Position = 0;
             }
         }
 
-        private void ReadHeader(FileReader reader)
+        private void ReadHeader(EndianBinaryReader reader)
         {
             m_Header.size = reader.ReadInt64();
             m_Header.compressedBlocksInfoSize = reader.ReadUInt32();
@@ -268,7 +258,7 @@ namespace AssetStudio
             }
         }
 
-        private void ReadBlocksInfoAndDirectory(FileReader reader, UnityVersion unityVer, bool silent = false)
+        private void ReadBlocksInfoAndDirectory(EndianBinaryReader reader, int[] unityVer)
         {
             byte[] blocksInfoBytes;
 
@@ -276,7 +266,7 @@ namespace AssetStudio
             {
                 reader.AlignStream(16);
             }
-            else if (unityVer >= (2019, 4) && m_Header.flags != ArchiveFlags.BlocksAndDirectoryInfoCombined)
+            else if (unityVer[0] >= 2019 && unityVer[1] >= 4)
             {
                 //check if we need to align the reader
                 //- align to 16 bytes and check if all are 0
@@ -289,96 +279,58 @@ namespace AssetStudio
                 }
             }
 
-            var compressedSize = (int)m_Header.compressedBlocksInfoSize;
-            var uncompressedSize = (int)m_Header.uncompressedBlocksInfoSize;
-            if (uncompressedSize < 0 || compressedSize < 0 || compressedSize > reader.BaseStream.Length)
-            {
-                throw new IOException("Incorrect blockInfo length.\nBlockInfo sizes might be encrypted.\n");
-            }
-
             if ((m_Header.flags & ArchiveFlags.BlocksInfoAtTheEnd) != 0)
             {
                 var position = reader.Position;
-                reader.Position = m_Header.size - compressedSize;
-                blocksInfoBytes = reader.ReadBytes(compressedSize);
+                reader.Position = reader.BaseStream.Length - m_Header.compressedBlocksInfoSize;
+                blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
                 reader.Position = position;
             }
             else //0x40 BlocksAndDirectoryInfoCombined
             {
-                blocksInfoBytes = reader.ReadBytes(compressedSize);
+                blocksInfoBytes = reader.ReadBytes((int)m_Header.compressedBlocksInfoSize);
             }
-            
-            var customBlockInfoCompression = _bundleOptions.CustomBlockInfoCompression;
+            MemoryStream blocksInfoUncompresseddStream;
+            var uncompressedSize = m_Header.uncompressedBlocksInfoSize;
             var compressionType = (CompressionType)(m_Header.flags & ArchiveFlags.CompressionTypeMask);
-            if (customBlockInfoCompression == CompressionType.Auto)
-            {
-                if (!silent && compressionType > CompressionType.Lzham && Enum.IsDefined(typeof(CompressionType), compressionType))
-                {
-                    Logger.Warning($"Non-standard blockInfo compression type: {(int)compressionType}. Trying to decompress as {compressionType} archive..");
-                }
-            }
-            else if (compressionType != CompressionType.None)
-            {
-                compressionType = customBlockInfoCompression;
-                if (!silent)
-                {
-                    Logger.Info($"Custom blockInfo compression type: {customBlockInfoCompression}");
-                }
-            }
-            Logger.Debug($"BlockInfo compression: {compressionType}");
-
-            int numWrite;
-            var errorMsg = string.Empty;
-            MemoryStream blocksInfoUncompressedStream;
             switch (compressionType)
             {
                 case CompressionType.None:
-                {
-                    blocksInfoUncompressedStream = new MemoryStream(blocksInfoBytes);
-                    numWrite = compressedSize;
-                    break;
-                }
-                case CompressionType.Lzma:
-                {
-                    blocksInfoUncompressedStream = new MemoryStream(uncompressedSize);
-                    using (var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes))
                     {
-                        numWrite = (int)BundleDecompressionHelper.DecompressLzmaStream(blocksInfoCompressedStream, blocksInfoUncompressedStream, compressedSize, uncompressedSize, ref errorMsg);
+                        blocksInfoUncompresseddStream = new MemoryStream(blocksInfoBytes);
+                        break;
+                    }
+                case CompressionType.Lzma:
+                    {
+                        blocksInfoUncompresseddStream = new MemoryStream((int)(uncompressedSize));
+                        using (var blocksInfoCompressedStream = new MemoryStream(blocksInfoBytes))
+                        {
+                            SevenZipHelper.StreamDecompress(blocksInfoCompressedStream, blocksInfoUncompresseddStream, m_Header.compressedBlocksInfoSize, m_Header.uncompressedBlocksInfoSize);
+                        }
+                        blocksInfoUncompresseddStream.Position = 0;
+                        break;
                     }
-                    blocksInfoUncompressedStream.Position = 0;
-                    break;
-                }
                 case CompressionType.Lz4:
                 case CompressionType.Lz4HC:
-                case CompressionType.Zstd:
-                case CompressionType.Oodle:
-                {
-                    var uncompressedBytes = new byte[uncompressedSize];
-                    numWrite = BundleDecompressionHelper.DecompressBlock(compressionType, blocksInfoBytes, uncompressedBytes, ref errorMsg);
-                    blocksInfoUncompressedStream = new MemoryStream(uncompressedBytes);
-                    break;
-                }
-                case CompressionType.Lzham:
-                    throw new IOException($"Unsupported blockInfo compression type: {compressionType}.\n");
+                    {
+                        var uncompressedBytes = new byte[uncompressedSize];
+                        var numWrite = LZ4Codec.Decode(blocksInfoBytes, uncompressedBytes);
+                        if (numWrite != uncompressedSize)
+                        {
+                            throw new IOException($"Lz4 decompression error, write {numWrite} bytes but expected {uncompressedSize} bytes");
+                        }
+                        blocksInfoUncompresseddStream = new MemoryStream(uncompressedBytes);
+                        break;
+                    }
                 default:
-                    throw new IOException($"Unknown blockInfo compression type: {compressionType}.\nYou may try to specify the compression type manually.\n");
+                    throw new IOException($"Unsupported compression type {compressionType}");
             }
-
-            if (numWrite != uncompressedSize)
-            {
-                var msg = $"{compressionType} blockInfo decompression error. {errorMsg}\nWrite {numWrite} bytes but expected {uncompressedSize} bytes.";
-                var exMsg = compressionType > CompressionType.Lz4HC || customBlockInfoCompression != CompressionType.Auto
-                    ? "Wrong compression type or blockInfo data might be encrypted."
-                    : "BlockInfo data might be encrypted.";
-                throw new IOException($"{msg}\n{exMsg}\n");
-            }
-
-            using (var blocksInfoReader = new EndianBinaryReader(blocksInfoUncompressedStream))
+            using (var blocksInfoReader = new EndianBinaryReader(blocksInfoUncompresseddStream))
             {
                 var uncompressedDataHash = blocksInfoReader.ReadBytes(16);
                 var blocksInfoCount = blocksInfoReader.ReadInt32();
                 m_BlocksInfo = new StorageBlock[blocksInfoCount];
-                for (var i = 0; i < blocksInfoCount; i++)
+                for (int i = 0; i < blocksInfoCount; i++)
                 {
                     m_BlocksInfo[i] = new StorageBlock
                     {
@@ -390,7 +342,7 @@ namespace AssetStudio
 
                 var nodesCount = blocksInfoReader.ReadInt32();
                 m_DirectoryInfo = new Node[nodesCount];
-                for (var i = 0; i < nodesCount; i++)
+                for (int i = 0; i < nodesCount; i++)
                 {
                     m_DirectoryInfo[i] = new Node
                     {
@@ -407,147 +359,57 @@ namespace AssetStudio
             }
         }
 
-        private Stream ReadBlocks(FileReader reader)
+        private void ReadBlocks(EndianBinaryReader reader, Stream blocksStream)
         {
-            var customBlockCompression = _bundleOptions.CustomBlockCompression;
-            var blocksStream = CreateBlocksStream(reader.FullPath);
-            var blocksCompression = m_BlocksInfo.Max(x => (CompressionType)(x.flags & StorageBlockFlags.CompressionTypeMask));
-            var blockSize = (int)m_BlocksInfo.Max(x => x.uncompressedSize);
-            Logger.Debug($"BlockData compression: {blocksCompression}\n" +
-                         $"BlockData count: {m_BlocksInfo.Length}\n" +
-                         $"BlockSize: {blockSize}");
-
-            if (customBlockCompression == CompressionType.Auto)
+            foreach (var blockInfo in m_BlocksInfo)
             {
-                if (blocksCompression > CompressionType.Lzham && Enum.IsDefined(typeof(CompressionType), blocksCompression))
+                var compressionType = (CompressionType)(blockInfo.flags & StorageBlockFlags.CompressionTypeMask);
+                switch (compressionType)
                 {
-                    Logger.Warning($"Non-standard block compression type: {(int)blocksCompression}. Trying to decompress as {blocksCompression} archive..");
-                }
-            }
-            else
-            {
-                Logger.Info($"Custom block compression type: {customBlockCompression}");
-                blocksCompression = customBlockCompression;
-            }
-
-            byte[] sharedCompressedBuff = null;
-            byte[] sharedUncompressedBuff = null;
-            if (blocksCompression != CompressionType.Lzma && blocksCompression != CompressionType.Lzham)
-            {
-                sharedCompressedBuff = BigArrayPool<byte>.Shared.Rent(blockSize);
-                sharedUncompressedBuff = BigArrayPool<byte>.Shared.Rent(blockSize);
-            }
-
-            try
-            {
-                foreach (var blockInfo in m_BlocksInfo)
-                {
-                    var compressionType = (CompressionType)(blockInfo.flags & StorageBlockFlags.CompressionTypeMask);
-
-                    if (customBlockCompression != CompressionType.Auto && compressionType > 0)
-                    {
-                        compressionType = customBlockCompression;
-                    }
-
-                    long numWrite;
-                    var errorMsg = string.Empty;
-                    switch (compressionType)
-                    {
-                        case CompressionType.None:
+                    case CompressionType.None:
+                        {
                             reader.BaseStream.CopyTo(blocksStream, blockInfo.compressedSize);
-                            numWrite = blockInfo.compressedSize;
                             break;
-                        case CompressionType.Lzma:
-                            Logger.Info("Decompressing LZMA stream...");
-                            numWrite = BundleDecompressionHelper.DecompressLzmaStream(reader.BaseStream, blocksStream, blockInfo.compressedSize, blockInfo.uncompressedSize, ref errorMsg);
+                        }
+                    case CompressionType.Lzma:
+                        {
+                            SevenZipHelper.StreamDecompress(reader.BaseStream, blocksStream, blockInfo.compressedSize, blockInfo.uncompressedSize);
                             break;
-                        case CompressionType.Lz4:
-                        case CompressionType.Lz4HC:
-                        case CompressionType.Zstd:
-                        case CompressionType.Oodle:
+                        }
+                    case CompressionType.Lz4:
+                    case CompressionType.Lz4HC:
+                    case CompressionType.Lz4Inv:
+                        {
                             var compressedSize = (int)blockInfo.compressedSize;
+                            var compressedBytes = BigArrayPool<byte>.Shared.Rent(compressedSize);
+                            _ = reader.Read(compressedBytes, 0, compressedSize);
                             var uncompressedSize = (int)blockInfo.uncompressedSize;
-
-                            sharedCompressedBuff.AsSpan().Clear();
-                            sharedUncompressedBuff.AsSpan().Clear();
-
-                            _ = reader.Read(sharedCompressedBuff, 0, compressedSize);
-                            var compressedSpan = new ReadOnlySpan<byte>(sharedCompressedBuff, 0, compressedSize);
-                            var uncompressedSpan = new Span<byte>(sharedUncompressedBuff, 0, uncompressedSize);
-
-                            numWrite = BundleDecompressionHelper.DecompressBlock(compressionType, compressedSpan, uncompressedSpan, ref errorMsg);
-                            if (numWrite == uncompressedSize)
+                            var uncompressedBytes = BigArrayPool<byte>.Shared.Rent(uncompressedSize);
+                            try
                             {
-                                blocksStream.Write(sharedUncompressedBuff, 0, uncompressedSize);
-                                continue;
+                                var compressedSpan = compressedBytes.AsSpan(0, compressedSize);
+                                var uncompressedSpan = uncompressedBytes.AsSpan(0, uncompressedSize);
+                                var numWrite = compressionType == CompressionType.Lz4Inv
+                                    ? LZ4Inv.Instance.Decompress(compressedSpan, uncompressedSpan)
+                                    : LZ4Codec.Decode(compressedSpan, uncompressedSpan);
+                                if (numWrite != uncompressedSize)
+                                {
+                                    throw new IOException($"Lz4 decompression error, write {numWrite} bytes but expected {uncompressedSize} bytes");
+                                }
+                                blocksStream.Write(uncompressedBytes, 0, uncompressedSize);
+                            }
+                            finally
+                            {
+                                BigArrayPool<byte>.Shared.Return(compressedBytes);
+                                BigArrayPool<byte>.Shared.Return(uncompressedBytes);
                             }
                             break;
-                        case CompressionType.Lzham:
-                            throw new IOException($"Unsupported block compression type: {compressionType}.\n");
-                        default:
-                            throw new IOException($"Unknown block compression type: {compressionType}.\nYou may try to specify the compression type manually.\n");
-                    }
-
-                    if (numWrite != blockInfo.uncompressedSize)
-                    {
-                        var msg = $"{compressionType} block decompression error. {errorMsg}\nWrite {numWrite} bytes but expected {blockInfo.uncompressedSize} bytes.";
-                        var exMsg = compressionType > CompressionType.Lz4HC || customBlockCompression != CompressionType.Auto
-                            ? "Wrong compression type or block data might be encrypted."
-                            : "Block data might be encrypted.";
-                        throw new IOException($"{msg}\n{exMsg}\n");
-                    }
+                        }
+                    default:
+                        throw new IOException($"Unsupported compression type {compressionType}");
                 }
             }
-            finally
-            {
-                if (sharedCompressedBuff != null)
-                    BigArrayPool<byte>.Shared.Return(sharedCompressedBuff, clearArray: true);
-                
-                if (sharedUncompressedBuff != null)
-                    BigArrayPool<byte>.Shared.Return(sharedUncompressedBuff, clearArray: true);
-            }
-
-            return blocksStream;
+            blocksStream.Position = 0;
         }
-
-        private void UnityCnCheck(FileReader reader, UnityVersion unityVer)
-        {
-            if ((m_Header.flags & ArchiveFlags.BlocksInfoAtTheEnd) != 0)
-                return;
-
-            var hasUnityCnFlag = false;
-            if (!unityVer.IsStripped)
-            {
-                // https://issuetracker.unity3d.com/issues/files-within-assetbundles-do-not-start-on-aligned-boundaries-breaking-patching-on-nintendo-switch
-                if (unityVer < 2020
-                    || unityVer.IsInRange(2020, (2020, 3, 34))
-                    || unityVer.IsInRange(2021, (2021, 3, 2))
-                    || unityVer.IsInRange(2022, (2022, 1, 1)))
-                {
-                    hasUnityCnFlag = ((CnEncryptionFlags)m_Header.flags & CnEncryptionFlags.V1) != 0;
-                }
-                else
-                {
-                    hasUnityCnFlag = ((CnEncryptionFlags)m_Header.flags & CnEncryptionFlags.V2_V3) != 0;
-                }
-            }
-            if (!hasUnityCnFlag)
-                return;
-
-            var pos = reader.Position;
-            reader.Position += 70;
-            try
-            {
-                ReadBlocksInfoAndDirectory(reader, unityVer, silent: true);
-            }
-            catch (Exception)
-            {
-                reader.Position = pos;
-                return;
-            }
-            throw new NotSupportedException("Unsupported bundle file. UnityCN encryption was detected.");
-        }
-
-        private bool IsUncompressedBundle => m_BlocksInfo.All(x => (CompressionType)(x.flags & StorageBlockFlags.CompressionTypeMask) == CompressionType.None);
     }
 }

AssetStudio/ClassIDType.cs

@@ -3,6 +3,7 @@ namespace AssetStudio
 {
     public enum ClassIDType
     {
+        AkPortraitSprite = -2,
         UnknownType = -1,
         Object = 0,
         GameObject = 1,
@@ -145,7 +146,6 @@ namespace AssetStudio
         ProceduralMaterial = 185,
         ProceduralTexture = 186,
         Texture2DArray = 187,
-        Texture2DArrayImage = -187, //fake type
         CubemapArray = 188,
         OffMeshLink = 191,
         OcclusionArea = 192,
@@ -297,7 +297,6 @@ namespace AssetStudio
         //void = 100011,
         TilemapCollider2D = 19719996,
         AssetImporterLog = 41386430,
-        GraphicsStateCollection = 55640938,
         VFXRenderer = 73398921,
         SerializableManagedRefTestClass = 76251197,
         Grid = 156049354,
@@ -310,13 +309,9 @@ namespace AssetStudio
         AssemblyDefinitionReferenceImporter = 294290339,
         SiblingDerived = 334799969,
         TestObjectWithSerializedMapStringNonAlignedStruct = 342846651,
-        AudioResource = 355983997,
         SubDerived = 367388927,
         AssetImportInProgressProxy = 369655926,
         PluginBuildInfo = 382020655,
-        MemorySettings = 387306366,
-        BuildMetaDataImporter = 403037116,
-        BuildInstructionImporter = 403037117,
         EditorProjectAccess = 426301858,
         PrefabImporter = 468431735,
         TestObjectWithSerializedArray = 478637458,
@@ -328,22 +323,16 @@ namespace AssetStudio
         AudioBuildInfo = 641289076,
         CachedSpriteAtlasRuntimeData = 644342135,
         RendererFake = 646504946,
-        MultiplayerManager = 655991488,
         AssemblyDefinitionReferenceAsset = 662584278,
         BuiltAssetBundleInfoSet = 668709126,
         SpriteAtlas = 687078895,
         RayTracingShaderImporter = 747330370,
-        BuildArchiveImporter = 780535461,
-        PreviewImporter = 815301076,
         RayTracingShader = 825902497,
         LightingSettings = 850595691,
         PlatformModuleSetup = 877146078,
         VersionControlSettings = 890905787,
-        CustomCollider2D = 893571522,
         AimConstraint = 895512359,
         VFXManager = 937362698,
-        RoslynAnalyzerConfigAsset = 947337230,
-        RuleSetFileAsset = 954905827,
         VisualEffectSubgraph = 994735392,
         VisualEffectSubgraphOperator = 994735403,
         VisualEffectSubgraphBlock = 994735404,
@@ -356,40 +345,25 @@ namespace AssetStudio
         LookAtConstraint = 1183024399,
         SpriteAtlasImporter = 1210832254,
         MultiArtifactTestImporter = 1223240404,
-        AudioContainerElement = 1233149941,
         GameObjectRecorder = 1268269756,
-        AudioRandomContainer = 1307931743,
         LightingDataAssetParent = 1325145578,
         PresetManager = 1386491679,
         TestObjectWithSpecialLayoutTwo = 1392443030,
         StreamingManager = 1403656975,
         LowerResBlitTexture = 1480428607,
-        VideoBuildInfo = 1521398425,
-        C4DImporter = 1541671625,
         StreamingController = 1542919678,
         RenderPassAttachment = 1571458007,
         TestObjectVectorPairStringBool = 1628831178,
-        ShaderContainer = 1557264870,
-        RoslynAdditionalFileAsset = 1597193336,
-        RoslynAdditionalFileImporter = 1642787288,
-        MultiplayerRolesData = 1652712579,
-        SceneRoots = 1660057539,
-        BrokenPrefabAsset = 1731078267,
-        AndroidAssetPackImporter = 1736697216,
-        VulkanDeviceFilterLists = 1740304944,
         GridLayout = 1742807556,
         AssemblyDefinitionImporter = 1766753193,
         ParentConstraint = 1773428102,
         FakeComponent = 1803986026,
-        RuleSetFileImporter = 1777034230,
         PositionConstraint = 1818360608,
         RotationConstraint = 1818360609,
         ScaleConstraint = 1818360610,
         Tilemap = 1839735485,
         PackageManifest = 1896753125,
         PackageManifestImporter = 1896753126,
-        RoslynAnalyzerConfigImporter = 1903396204,
-        UIRenderer = 1931382933,
         TerrainLayer = 1953259897,
         SpriteShapeRenderer = 1971053207,
         NativeObjectType = 1977754360,
@@ -401,7 +375,6 @@ namespace AssetStudio
         VisualEffectObject = 2059678085,
         VisualEffect = 2083052967,
         LocalizationAsset = 2083778819,
-        ScriptedImporter = 2089858483,
-        ShaderIncludeImporter = 2103361453,
+        ScriptedImporter = 2089858483
     }
 }

AssetStudio/Classes/Animation.cs

@@ -1,19 +1,22 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
     public sealed class Animation : Behaviour
     {
-        public List<PPtr<AnimationClip>> m_Animations;
+        public PPtr<AnimationClip>[] m_Animations;
 
         public Animation(ObjectReader reader) : base(reader)
         {
             var m_Animation = new PPtr<AnimationClip>(reader);
             int numAnimations = reader.ReadInt32();
-            m_Animations = new List<PPtr<AnimationClip>>();
-            for (var i = 0; i < numAnimations; i++)
+            m_Animations = new PPtr<AnimationClip>[numAnimations];
+            for (int i = 0; i < numAnimations; i++)
             {
-                m_Animations.Add(new PPtr<AnimationClip>(reader));
+                m_Animations[i] = new PPtr<AnimationClip>(reader);
             }
         }
     }

AssetStudio/Classes/Animator.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class Animator : Behaviour
     {
@@ -12,57 +17,47 @@
             m_Controller = new PPtr<RuntimeAnimatorController>(reader);
             var m_CullingMode = reader.ReadInt32();
 
-            if (version >= (4, 5)) //4.5 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
             {
                 var m_UpdateMode = reader.ReadInt32();
             }
 
-            if (version.IsTuanjie && (version > (2022, 3, 48) || version == (2022, 3, 48) && version.Build >= 7)) //2022.3.48t7(1.4.4) and up
-            {
-                var m_UpdateFrequencyMode = reader.ReadInt32();
-                var m_UpdateFrequency = reader.ReadSingle();
-            }
-
             var m_ApplyRootMotion = reader.ReadBoolean();
-            if (version == 4 && version.Minor >= 5) //4.5 and up - 5.0 down
+            if (version[0] == 4 && version[1] >= 5) //4.5 and up - 5.0 down
             {
                 reader.AlignStream();
             }
 
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 var m_LinearVelocityBlending = reader.ReadBoolean();
-                if (version >= (2021, 2)) //2021.2 and up
+                if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 2)) //2021.2 and up
                 {
                     var m_StabilizeFeet = reader.ReadBoolean();
                 }
-                if (version >= (2023, 1)) //2023.1 and up
-                {
-                    var m_AnimatePhysics = reader.ReadBoolean();
-                }
                 reader.AlignStream();
             }
 
-            if (version < (4, 5)) //4.5 down
+            if (version[0] < 4 || (version[0] == 4 && version[1] < 5)) //4.5 down
             {
                 var m_AnimatePhysics = reader.ReadBoolean();
             }
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_HasTransformHierarchy = reader.ReadBoolean();
             }
 
-            if (version >= (4, 5)) //4.5 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
             {
                 var m_AllowConstantClipSamplingOptimization = reader.ReadBoolean();
             }
-            if (version.IsInRange(5, 2018)) //5.0 and up - 2018 down
+            if (version[0] >= 5 && version[0] < 2018) //5.0 and up - 2018 down
             {
                 reader.AlignStream();
             }
 
-            if (version >= 2018) //2018 and up
+            if (version[0] >= 2018) //2018 and up
             {
                 var m_KeepAnimatorControllerStateOnDisable = reader.ReadBoolean();
                 reader.AlignStream();

AssetStudio/Classes/AnimatorController.cs

@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
@@ -14,7 +17,7 @@ namespace AssetStudio
 
             word0 = reader.ReadUInt32();
             word1 = reader.ReadUInt32();
-            if (version >= (5, 2)) //5.2 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
             {
                 word2 = reader.ReadUInt32();
             }
@@ -35,15 +38,15 @@ namespace AssetStudio
 
     public class SkeletonMask
     {
-        public List<SkeletonMaskElement> m_Data;
+        public SkeletonMaskElement[] m_Data;
 
         public SkeletonMask(ObjectReader reader)
         {
             int numElements = reader.ReadInt32();
-            m_Data = new List<SkeletonMaskElement>();
-            for (var i = 0; i < numElements; i++)
+            m_Data = new SkeletonMaskElement[numElements];
+            for (int i = 0; i < numElements; i++)
             {
-                m_Data.Add(new SkeletonMaskElement(reader));
+                m_Data[i] = new SkeletonMaskElement(reader);
             }
         }
     }
@@ -70,12 +73,12 @@ namespace AssetStudio
             m_SkeletonMask = new SkeletonMask(reader);
             m_Binding = reader.ReadUInt32();
             m_LayerBlendingMode = reader.ReadInt32();
-            if (version >= (4, 2)) //4.2 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
             {
                 m_DefaultWeight = reader.ReadSingle();
             }
             m_IKPass = reader.ReadBoolean();
-            if (version >= (4, 2)) //4.2 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
             {
                 m_SyncedLayerAffectsTiming = reader.ReadBoolean();
             }
@@ -121,15 +124,14 @@ namespace AssetStudio
             var version = reader.version;
 
             int numConditions = reader.ReadInt32();
-            var conditionConstantList = new List<ConditionConstant>();
-            for (var i = 0; i < numConditions; i++)
+            m_ConditionConstantArray = new ConditionConstant[numConditions];
+            for (int i = 0; i < numConditions; i++)
             {
-                conditionConstantList.Add(new ConditionConstant(reader));
+                m_ConditionConstantArray[i] = new ConditionConstant(reader);
             }
-            m_ConditionConstantArray = conditionConstantList.ToArray();
 
             m_DestinationState = reader.ReadUInt32();
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_FullPathID = reader.ReadUInt32();
             }
@@ -138,7 +140,7 @@ namespace AssetStudio
             m_UserID = reader.ReadUInt32();
             m_TransitionDuration = reader.ReadSingle();
             m_TransitionOffset = reader.ReadSingle();
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_ExitTime = reader.ReadSingle();
                 m_HasExitTime = reader.ReadBoolean();
@@ -152,7 +154,7 @@ namespace AssetStudio
                 m_Atomic = reader.ReadBoolean();
             }
 
-            if (version >= (4, 5)) //4.5 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
             {
                 m_CanTransitionToSelf = reader.ReadBoolean();
             }
@@ -199,12 +201,11 @@ namespace AssetStudio
             m_ChildPairAvgMagInvArray = reader.ReadSingleArray();
 
             int numNeighbours = reader.ReadInt32();
-            var childNeighborLists = new List<MotionNeighborList>();
-            for (var i = 0; i < numNeighbours; i++)
+            m_ChildNeighborListArray = new MotionNeighborList[numNeighbours];
+            for (int i = 0; i < numNeighbours; i++)
             {
-                childNeighborLists.Add(new MotionNeighborList(reader));
+                m_ChildNeighborListArray[i] = new MotionNeighborList(reader);
             }
-            m_ChildNeighborListArray = childNeighborLists.ToArray();
         }
     }
 
@@ -251,41 +252,43 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version >= (4, 1)) //4.1 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
             {
                 m_BlendType = reader.ReadUInt32();
             }
             m_BlendEventID = reader.ReadUInt32();
-            if (version >= (4, 1)) //4.1 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
             {
                 m_BlendEventYID = reader.ReadUInt32();
             }
             m_ChildIndices = reader.ReadUInt32Array();
-            if (version < (4, 1)) //4.1 down
+            if (version[0] < 4 || (version[0] == 4 && version[1] < 1)) //4.1 down
             {
                 m_ChildThresholdArray = reader.ReadSingleArray();
             }
 
-            if (version >= (4, 1)) //4.1 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
             {
                 m_Blend1dData = new Blend1dDataConstant(reader);
                 m_Blend2dData = new Blend2dDataConstant(reader);
             }
 
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_BlendDirectData = new BlendDirectDataConstant(reader);
             }
 
             m_ClipID = reader.ReadUInt32();
-            if (version == 4 && version.Minor >= 5) //4.5 - 5.0
+            if (version[0] == 4 && version[1] >= 5) //4.5 - 5.0
             {
                 m_ClipIndex = reader.ReadUInt32();
             }
 
             m_Duration = reader.ReadSingle();
 
-            if (version >= (4, 1, 3)) //4.1.3 and up
+            if (version[0] > 4
+                || (version[0] == 4 && version[1] > 1)
+                || (version[0] == 4 && version[1] == 1 && version[2] >= 3)) //4.1.3 and up
             {
                 m_CycleOffset = reader.ReadSingle();
                 m_Mirror = reader.ReadBoolean();
@@ -304,14 +307,13 @@ namespace AssetStudio
             var version = reader.version;
 
             int numNodes = reader.ReadInt32();
-            var nodeList = new List<BlendTreeNodeConstant>();
-            for (var i = 0; i < numNodes; i++)
+            m_NodeArray = new BlendTreeNodeConstant[numNodes];
+            for (int i = 0; i < numNodes; i++)
             {
-                nodeList.Add(new BlendTreeNodeConstant(reader));
+                m_NodeArray[i] = new BlendTreeNodeConstant(reader);
             }
-            m_NodeArray = nodeList.ToArray();
 
-            if (version < (4, 5)) //4.5 down
+            if (version[0] < 4 || (version[0] == 4 && version[1] < 5)) //4.5 down
             {
                 m_BlendEventArrayConstant = new ValueArrayConstant(reader);
             }
@@ -343,71 +345,68 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            int numTransitions = reader.ReadInt32();
-            var transitionConstantList = new List<TransitionConstant>();
-            for (var i = 0; i < numTransitions; i++)
+            int numTransistions = reader.ReadInt32();
+            m_TransitionConstantArray = new TransitionConstant[numTransistions];
+            for (int i = 0; i < numTransistions; i++)
             {
-                transitionConstantList.Add(new TransitionConstant(reader));
+                m_TransitionConstantArray[i] = new TransitionConstant(reader);
             }
-            m_TransitionConstantArray = transitionConstantList.ToArray();
 
             m_BlendTreeConstantIndexArray = reader.ReadInt32Array();
 
-            if (version < (5, 2)) //5.2 down
+            if (version[0] < 5 || (version[0] == 5 && version[1] < 2)) //5.2 down
             {
                 int numInfos = reader.ReadInt32();
-                var leafInfoList = new List<LeafInfoConstant>();
-                for (var i = 0; i < numInfos; i++)
+                m_LeafInfoArray = new LeafInfoConstant[numInfos];
+                for (int i = 0; i < numInfos; i++)
                 {
-                    leafInfoList.Add(new LeafInfoConstant(reader));
+                    m_LeafInfoArray[i] = new LeafInfoConstant(reader);
                 }
-                m_LeafInfoArray = leafInfoList.ToArray();
             }
 
             int numBlends = reader.ReadInt32();
-            var blendTreeConstantList = new List<BlendTreeConstant>();
-            for (var i = 0; i < numBlends; i++)
+            m_BlendTreeConstantArray = new BlendTreeConstant[numBlends];
+            for (int i = 0; i < numBlends; i++)
             {
-                blendTreeConstantList.Add(new BlendTreeConstant(reader));
+                m_BlendTreeConstantArray[i] = new BlendTreeConstant(reader);
             }
-            m_BlendTreeConstantArray = blendTreeConstantList.ToArray();
 
             m_NameID = reader.ReadUInt32();
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_PathID = reader.ReadUInt32();
             }
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_FullPathID = reader.ReadUInt32();
             }
 
             m_TagID = reader.ReadUInt32();
-            if (version >= (5, 1)) //5.1 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 1)) //5.1 and up
             {
                 m_SpeedParamID = reader.ReadUInt32();
                 m_MirrorParamID = reader.ReadUInt32();
                 m_CycleOffsetParamID = reader.ReadUInt32();
             }
 
-            if (version >= (2017, 2)) //2017.2 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
             {
                 var m_TimeParamID = reader.ReadUInt32();
             }
 
             m_Speed = reader.ReadSingle();
-            if (version >= (4, 1)) //4.1 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
             {
                 m_CycleOffset = reader.ReadSingle();
             }
             m_IKOnFeet = reader.ReadBoolean();
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_WriteDefaultValues = reader.ReadBoolean();
             }
 
             m_Loop = reader.ReadBoolean();
-            if (version >= (4, 1)) //4.1 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 1)) //4.1 and up
             {
                 m_Mirror = reader.ReadBoolean();
             }
@@ -426,12 +425,11 @@ namespace AssetStudio
             m_Destination = reader.ReadUInt32();
 
             int numConditions = reader.ReadInt32();
-            var conditionConstantList = new List<ConditionConstant>();
-            for (var i = 0; i < numConditions; i++)
+            m_ConditionConstantArray = new ConditionConstant[numConditions];
+            for (int i = 0; i < numConditions; i++)
             {
-                conditionConstantList.Add(new ConditionConstant(reader));
+                m_ConditionConstantArray[i] = new ConditionConstant(reader);
             }
-            m_ConditionConstantArray = conditionConstantList.ToArray();
         }
     }
 
@@ -444,12 +442,11 @@ namespace AssetStudio
         public SelectorStateConstant(ObjectReader reader)
         {
             int numTransitions = reader.ReadInt32();
-            var transitionConstantList = new List<SelectorTransitionConstant>();
-            for (var i = 0; i < numTransitions; i++)
+            m_TransitionConstantArray = new SelectorTransitionConstant[numTransitions];
+            for (int i = 0; i < numTransitions; i++)
             {
-                transitionConstantList.Add(new SelectorTransitionConstant(reader));
+                m_TransitionConstantArray[i] = new SelectorTransitionConstant(reader);
             }
-            m_TransitionConstantArray = transitionConstantList.ToArray();
 
             m_FullPathID = reader.ReadUInt32();
             m_isEntry = reader.ReadBoolean();
@@ -470,30 +467,27 @@ namespace AssetStudio
             var version = reader.version;
 
             int numStates = reader.ReadInt32();
-            var stateConstantList = new List<StateConstant>();
-            for (var i = 0; i < numStates; i++)
+            m_StateConstantArray = new StateConstant[numStates];
+            for (int i = 0; i < numStates; i++)
             {
-                stateConstantList.Add(new StateConstant(reader));
+                m_StateConstantArray[i] = new StateConstant(reader);
             }
-            m_StateConstantArray = stateConstantList.ToArray();
 
             int numAnyStates = reader.ReadInt32();
-            var anyStateTransitionConstantList = new List<TransitionConstant>();
-            for (var i = 0; i < numAnyStates; i++)
+            m_AnyStateTransitionConstantArray = new TransitionConstant[numAnyStates];
+            for (int i = 0; i < numAnyStates; i++)
             {
-                anyStateTransitionConstantList.Add(new TransitionConstant(reader));
+                m_AnyStateTransitionConstantArray[i] = new TransitionConstant(reader);
             }
-            m_AnyStateTransitionConstantArray = anyStateTransitionConstantList.ToArray();
-            
-            if (version >= 5) //5.0 and up
+
+            if (version[0] >= 5) //5.0 and up
             {
                 int numSelectors = reader.ReadInt32();
-                var selectorStateConstantList = new List<SelectorStateConstant>();
-                for (var i = 0; i < numSelectors; i++)
+                m_SelectorStateConstantArray = new SelectorStateConstant[numSelectors];
+                for (int i = 0; i < numSelectors; i++)
                 {
-                    selectorStateConstantList.Add(new SelectorStateConstant(reader));
+                    m_SelectorStateConstantArray[i] = new SelectorStateConstant(reader);
                 }
-                m_SelectorStateConstantArray = selectorStateConstantList.ToArray();
             }
 
             m_DefaultState = reader.ReadUInt32();
@@ -515,7 +509,7 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version < (5, 5)) //5.5 down
+            if (version[0] < 5 || (version[0] == 5 && version[1] < 5)) //5.5 down
             {
                 m_BoolValues = reader.ReadBooleanArray();
                 reader.AlignStream();
@@ -523,35 +517,29 @@ namespace AssetStudio
                 m_FloatValues = reader.ReadSingleArray();
             }
 
-            if (version < (4, 3)) //4.3 down
+            if (version[0] < 4 || (version[0] == 4 && version[1] < 3)) //4.3 down
             {
                 m_VectorValues = reader.ReadVector4Array();
             }
             else
             {
                 int numPosValues = reader.ReadInt32();
-                var positionValuesList = new List<Vector3>();
-                for (var i = 0; i < numPosValues; i++)
+                m_PositionValues = new Vector3[numPosValues];
+                for (int i = 0; i < numPosValues; i++)
                 {
-                    positionValuesList.Add(version >= (5, 4) //5.4 and up
-                        ? reader.ReadVector3()
-                        : (Vector3)reader.ReadVector4());
+                    m_PositionValues[i] = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
                 }
-                m_PositionValues = positionValuesList.ToArray();
 
                 m_QuaternionValues = reader.ReadVector4Array();
 
                 int numScaleValues = reader.ReadInt32();
-                var scaleValuesList = new List<Vector3>();
-                for (var i = 0; i < numScaleValues; i++)
+                m_ScaleValues = new Vector3[numScaleValues];
+                for (int i = 0; i < numScaleValues; i++)
                 {
-                    scaleValuesList.Add(version >= (5, 4) //5.4 and up
-                        ? reader.ReadVector3()
-                        : (Vector3)reader.ReadVector4());
+                    m_ScaleValues[i] = version[0] > 5 || (version[0] == 5 && version[1] >= 4) ? reader.ReadVector3() : (Vector3)reader.ReadVector4(); //5.4 and up
                 }
-                m_ScaleValues = scaleValuesList.ToArray();
 
-                if (version >= (5, 5)) //5.5 and up
+                if (version[0] > 5 || (version[0] == 5 && version[1] >= 5)) //5.5 and up
                 {
                     m_FloatValues = reader.ReadSingleArray();
                     m_IntValues = reader.ReadInt32Array();
@@ -572,20 +560,18 @@ namespace AssetStudio
         public ControllerConstant(ObjectReader reader)
         {
             int numLayers = reader.ReadInt32();
-            var layerList = new List<LayerConstant>();
-            for (var i = 0; i < numLayers; i++)
+            m_LayerArray = new LayerConstant[numLayers];
+            for (int i = 0; i < numLayers; i++)
             {
-                layerList.Add(new LayerConstant(reader));
+                m_LayerArray[i] = new LayerConstant(reader);
             }
-            m_LayerArray = layerList.ToArray();
 
             int numStates = reader.ReadInt32();
-            var stateMachineList = new List<StateMachineConstant>();
-            for (var i = 0; i < numStates; i++)
+            m_StateMachineArray = new StateMachineConstant[numStates];
+            for (int i = 0; i < numStates; i++)
             {
-                stateMachineList.Add(new StateMachineConstant(reader));
+                m_StateMachineArray[i] = new StateMachineConstant(reader);
             }
-            m_StateMachineArray = stateMachineList.ToArray();
 
             m_Values = new ValueArrayConstant(reader);
             m_DefaultValues = new ValueArray(reader);
@@ -594,8 +580,7 @@ namespace AssetStudio
 
     public sealed class AnimatorController : RuntimeAnimatorController
     {
-        public List<PPtr<AnimationClip>> m_AnimationClips;
-        public List<KeyValuePair<uint, string>> m_TOS;
+        public PPtr<AnimationClip>[] m_AnimationClips;
 
         public AnimatorController(ObjectReader reader) : base(reader)
         {
@@ -603,17 +588,17 @@ namespace AssetStudio
             var m_Controller = new ControllerConstant(reader);
 
             int tosSize = reader.ReadInt32();
-            m_TOS = new List<KeyValuePair<uint, string>>();
-            for (var i = 0; i < tosSize; i++)
+            var m_TOS = new KeyValuePair<uint, string>[tosSize];
+            for (int i = 0; i < tosSize; i++)
             {
-                m_TOS.Add(new KeyValuePair<uint, string>(reader.ReadUInt32(), reader.ReadAlignedString()));
+                m_TOS[i] = new KeyValuePair<uint, string>(reader.ReadUInt32(), reader.ReadAlignedString());
             }
 
             int numClips = reader.ReadInt32();
-            m_AnimationClips = new List<PPtr<AnimationClip>>();
-            for (var i = 0; i < numClips; i++)
+            m_AnimationClips = new PPtr<AnimationClip>[numClips];
+            for (int i = 0; i < numClips; i++)
             {
-                m_AnimationClips.Add(new PPtr<AnimationClip>(reader));
+                m_AnimationClips[i] = new PPtr<AnimationClip>(reader);
             }
         }
     }

AssetStudio/Classes/AnimatorOverrideController.cs

@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
@@ -17,17 +20,17 @@ namespace AssetStudio
     public sealed class AnimatorOverrideController : RuntimeAnimatorController
     {
         public PPtr<RuntimeAnimatorController> m_Controller;
-        public List<AnimationClipOverride> m_Clips;
+        public AnimationClipOverride[] m_Clips;
 
         public AnimatorOverrideController(ObjectReader reader) : base(reader)
         {
             m_Controller = new PPtr<RuntimeAnimatorController>(reader);
 
             int numOverrides = reader.ReadInt32();
-            m_Clips = new List<AnimationClipOverride>();
-            for (var i = 0; i < numOverrides; i++)
+            m_Clips = new AnimationClipOverride[numOverrides];
+            for (int i = 0; i < numOverrides; i++)
             {
-                m_Clips.Add(new AnimationClipOverride(reader));
+                m_Clips[i] = new AnimationClipOverride(reader);
             }
         }
     }

AssetStudio/Classes/AssetBundle.cs

@@ -18,8 +18,8 @@ namespace AssetStudio
 
     public sealed class AssetBundle : NamedObject
     {
-        public List<PPtr<Object>> m_PreloadTable;
-        public List<KeyValuePair<string, AssetInfo>> m_Container;
+        public PPtr<Object>[] m_PreloadTable;
+        public KeyValuePair<string, AssetInfo>[] m_Container;
         public string m_AssetBundleName;
         public string[] m_Dependencies;
         public bool m_IsStreamedSceneAssetBundle;
@@ -27,41 +27,37 @@ namespace AssetStudio
         public AssetBundle(ObjectReader reader) : base(reader)
         {
             var m_PreloadTableSize = reader.ReadInt32();
-            m_PreloadTable = new List<PPtr<Object>>();
+            m_PreloadTable = new PPtr<Object>[m_PreloadTableSize];
             for (var i = 0; i < m_PreloadTableSize; i++)
             {
-                m_PreloadTable.Add(new PPtr<Object>(reader));
+                m_PreloadTable[i] = new PPtr<Object>(reader);
             }
 
             var m_ContainerSize = reader.ReadInt32();
-            m_Container = new List<KeyValuePair<string, AssetInfo>>();
+            m_Container = new KeyValuePair<string, AssetInfo>[m_ContainerSize];
             for (var i = 0; i < m_ContainerSize; i++)
             {
-                m_Container.Add(new KeyValuePair<string, AssetInfo>(reader.ReadAlignedString(), new AssetInfo(reader)));
+                m_Container[i] = new KeyValuePair<string, AssetInfo>(reader.ReadAlignedString(), new AssetInfo(reader));
             }
 
             var m_MainAsset = new AssetInfo(reader);
 
-            if (version == (5, 4)) //5.4.x
-            {
-                var m_ClassVersionMapSize = reader.ReadInt32();
-                for (var i = 0; i < m_ClassVersionMapSize; i++)
-                {
-                    var first = reader.ReadInt32();
-                    var second = reader.ReadInt32();
-                }
-            }
-
-            if (version >= (4, 2)) //4.2 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 2)) //4.2 and up
             {
                 var m_RuntimeCompatibility = reader.ReadUInt32();
             }
 
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 m_AssetBundleName = reader.ReadAlignedString();
 
-                m_Dependencies = reader.ReadStringArray();
+                var m_DependenciesSize = reader.ReadInt32();
+                m_Dependencies = new string[m_DependenciesSize];
+
+                for (var i = 0; i < m_DependenciesSize; i++)
+                {
+                    m_Dependencies[i] = reader.ReadAlignedString();
+                }
 
                 m_IsStreamedSceneAssetBundle = reader.ReadBoolean();
             }

AssetStudio/Classes/AudioClip.cs

@@ -1,4 +1,10 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class AudioClip : NamedObject
     {
@@ -27,23 +33,15 @@
 
         public AudioClip(ObjectReader reader) : base(reader)
         {
-            if (version < 5)
+            if (version[0] < 5)
             {
                 m_Format = reader.ReadInt32();
-                if (version >= (2, 6)) //2.6 to 5
-                {
-                    m_Type = (FMODSoundType)reader.ReadInt32();
-                    m_3D = reader.ReadBoolean();
-                    m_UseHardware = reader.ReadBoolean();
-                    reader.AlignStream();
-                }
-                else
-                {
-                    m_Length = reader.ReadSingle();
-                    m_Frequency = reader.ReadInt32();
-                    m_Channels = m_Format != 0x05 ? m_Format >> 1 : 0;
-                }
-                if (version >= (3, 2)) //3.2.0 to 5
+                m_Type = (FMODSoundType)reader.ReadInt32();
+                m_3D = reader.ReadBoolean();
+                m_UseHardware = reader.ReadBoolean();
+                reader.AlignStream();
+
+                if (version[0] >= 4 || (version[0] == 3 && version[1] >= 2)) //3.2.0 to 5
                 {
                     int m_Stream = reader.ReadInt32();
                     m_Size = reader.ReadInt32();
@@ -97,7 +95,7 @@
     public enum FMODSoundType
     {
         UNKNOWN = 0,
-        AAC = 1,
+        ACC = 1,
         AIFF = 2,
         ASF = 3,
         AT3 = 4,

AssetStudio/Classes/Avatar.cs

@@ -23,7 +23,7 @@ namespace AssetStudio
         public Limit(ObjectReader reader)
         {
             var version = reader.version;
-            if (version >= (5, 4))//5.4 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4))//5.4 and up
             {
                 m_Min = reader.ReadVector3();
                 m_Max = reader.ReadVector3();
@@ -50,7 +50,7 @@ namespace AssetStudio
             var version = reader.version;
             m_PreQ = reader.ReadVector4();
             m_PostQ = reader.ReadVector4();
-            if (version >= (5, 4)) //5.4 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
             {
                 m_Sgn = reader.ReadVector3();
             }
@@ -66,7 +66,7 @@ namespace AssetStudio
 
     public class Skeleton
     {
-        public List<Node> m_Node;
+        public Node[] m_Node;
         public uint[] m_ID;
         public Axes[] m_AxesArray;
 
@@ -74,35 +74,34 @@ namespace AssetStudio
         public Skeleton(ObjectReader reader)
         {
             int numNodes = reader.ReadInt32();
-            m_Node = new List<Node>();
-            for (var i = 0; i < numNodes; i++)
+            m_Node = new Node[numNodes];
+            for (int i = 0; i < numNodes; i++)
             {
-                m_Node.Add(new Node(reader));
+                m_Node[i] = new Node(reader);
             }
 
             m_ID = reader.ReadUInt32Array();
 
             int numAxes = reader.ReadInt32();
-            var axesList = new List<Axes>();
-            for (var i = 0; i < numAxes; i++)
+            m_AxesArray = new Axes[numAxes];
+            for (int i = 0; i < numAxes; i++)
             {
-                axesList.Add(new Axes(reader));
+                m_AxesArray[i] = new Axes(reader);
             }
-            m_AxesArray = axesList.ToArray();
         }
     }
 
     public class SkeletonPose
     {
-        public List<xform> m_X;
+        public xform[] m_X;
 
         public SkeletonPose(ObjectReader reader)
         {
             int numXforms = reader.ReadInt32();
-            m_X = new List<xform>();
-            for (var i = 0; i < numXforms; i++)
+            m_X = new xform[numXforms];
+            for (int i = 0; i < numXforms; i++)
             {
-                m_X.Add(new xform(reader));
+                m_X[i] = new xform(reader);
             }
         }
     }
@@ -164,7 +163,7 @@ namespace AssetStudio
         public SkeletonPose m_SkeletonPose;
         public Hand m_LeftHand;
         public Hand m_RightHand;
-        public List<Handle> m_Handles;
+        public Handle[] m_Handles;
         public Collider[] m_ColliderArray;
         public int[] m_HumanBoneIndex;
         public float[] m_HumanBoneMass;
@@ -190,29 +189,28 @@ namespace AssetStudio
             m_LeftHand = new Hand(reader);
             m_RightHand = new Hand(reader);
 
-            if (version < (2018, 2)) //2018.2 down
+            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
             {
                 int numHandles = reader.ReadInt32();
-                m_Handles = new List<Handle>();
-                for (var i = 0; i < numHandles; i++)
+                m_Handles = new Handle[numHandles];
+                for (int i = 0; i < numHandles; i++)
                 {
-                    m_Handles.Add(new Handle(reader));
+                    m_Handles[i] = new Handle(reader);
                 }
 
                 int numColliders = reader.ReadInt32();
-                var colliderList = new List<Collider>();
-                for (var i = 0; i < numColliders; i++)
+                m_ColliderArray = new Collider[numColliders];
+                for (int i = 0; i < numColliders; i++)
                 {
-                    colliderList.Add(new Collider(reader));
+                    m_ColliderArray[i] = new Collider(reader);
                 }
-                m_ColliderArray = colliderList.ToArray();
             }
 
             m_HumanBoneIndex = reader.ReadInt32Array();
 
             m_HumanBoneMass = reader.ReadSingleArray();
 
-            if (version < (2018, 2)) //2018.2 down
+            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
             {
                 m_ColliderIndex = reader.ReadInt32Array();
             }
@@ -227,7 +225,7 @@ namespace AssetStudio
             m_FeetSpacing = reader.ReadSingle();
             m_HasLeftHand = reader.ReadBoolean();
             m_HasRightHand = reader.ReadBoolean();
-            if (version >= (5, 2)) //5.2 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
             {
                 m_HasTDoF = reader.ReadBoolean();
             }
@@ -256,7 +254,7 @@ namespace AssetStudio
             m_AvatarSkeleton = new Skeleton(reader);
             m_AvatarSkeletonPose = new SkeletonPose(reader);
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_DefaultPose = new SkeletonPose(reader);
 
@@ -267,7 +265,7 @@ namespace AssetStudio
 
             m_HumanSkeletonIndexArray = reader.ReadInt32Array();
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_HumanSkeletonReverseIndexArray = reader.ReadInt32Array();
             }
@@ -275,7 +273,7 @@ namespace AssetStudio
             m_RootMotionBoneIndex = reader.ReadInt32();
             m_RootMotionBoneX = new xform(reader);
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_RootMotionSkeleton = new Skeleton(reader);
                 m_RootMotionSkeletonPose = new SkeletonPose(reader);
@@ -289,7 +287,7 @@ namespace AssetStudio
     {
         public uint m_AvatarSize;
         public AvatarConstant m_Avatar;
-        public List<KeyValuePair<uint, string>> m_TOS;
+        public KeyValuePair<uint, string>[] m_TOS;
 
         public Avatar(ObjectReader reader) : base(reader)
         {
@@ -297,10 +295,10 @@ namespace AssetStudio
             m_Avatar = new AvatarConstant(reader);
 
             int numTOS = reader.ReadInt32();
-            m_TOS = new List<KeyValuePair<uint, string>>();
-            for (var i = 0; i < numTOS; i++)
+            m_TOS = new KeyValuePair<uint, string>[numTOS];
+            for (int i = 0; i < numTOS; i++)
             {
-                m_TOS.Add(new KeyValuePair<uint, string>(reader.ReadUInt32(), reader.ReadAlignedString()));
+                m_TOS[i] = new KeyValuePair<uint, string>(reader.ReadUInt32(), reader.ReadAlignedString());
             }
 
             //HumanDescription m_HumanDescription 2019 and up

AssetStudio/Classes/Behaviour.cs

@@ -1,11 +1,14 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public abstract class Behaviour : Component
     {
         public byte m_Enabled;
 
-        public Behaviour() { }
-
         protected Behaviour(ObjectReader reader) : base(reader)
         {
             m_Enabled = reader.ReadByte();

AssetStudio/Classes/BuildSettings.cs

@@ -1,20 +1,24 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class BuildSettings : Object
     {
-        public string[] levels;
-        public string[] scenes;
+        public string m_Version;
 
         public BuildSettings(ObjectReader reader) : base(reader)
         {
-            if (reader.version < (5, 1)) //5.1 down
-            {
-                levels = reader.ReadStringArray();
-            }
-            else
-            {
-                scenes = reader.ReadStringArray();
-            }
+            var levels = reader.ReadStringArray();
+
+            var hasRenderTexture = reader.ReadBoolean();
+            var hasPROVersion = reader.ReadBoolean();
+            var hasPublishingRights = reader.ReadBoolean();
+            var hasShadows = reader.ReadBoolean();
+
+            m_Version = reader.ReadAlignedString();
         }
     }
 }

AssetStudio/Classes/Component.cs

@@ -1,11 +1,14 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public abstract class Component : EditorExtension
     {
         public PPtr<GameObject> m_GameObject;
 
-        public Component() { }
-
         protected Component(ObjectReader reader) : base(reader)
         {
             m_GameObject = new PPtr<GameObject>(reader);

AssetStudio/Classes/EditorExtension.cs

@@ -1,9 +1,12 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public abstract class EditorExtension : Object
     {
-        protected EditorExtension() { }
-
         protected EditorExtension(ObjectReader reader) : base(reader)
         {
             if (platform == BuildTarget.NoTarget)

AssetStudio/Classes/Font.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class Font : NamedObject
     {
@@ -6,7 +11,7 @@
 
         public Font(ObjectReader reader) : base(reader)
         {
-            if (version >= (5, 5))//5.5 and up
+            if ((version[0] == 5 && version[1] >= 5) || version[0] > 5)//5.5 and up
             {
                 var m_LineSpacing = reader.ReadSingle();
                 var m_DefaultMaterial = new PPtr<Material>(reader);
@@ -18,12 +23,12 @@
                 var m_CharacterPadding = reader.ReadInt32();
                 var m_ConvertCase = reader.ReadInt32();
                 int m_CharacterRects_size = reader.ReadInt32();
-                for (var i = 0; i < m_CharacterRects_size; i++)
+                for (int i = 0; i < m_CharacterRects_size; i++)
                 {
                     reader.Position += 44;//CharacterInfo data 41
                 }
                 int m_KerningValues_size = reader.ReadInt32();
-                for (var i = 0; i < m_KerningValues_size; i++)
+                for (int i = 0; i < m_KerningValues_size; i++)
                 {
                     reader.Position += 8;
                 }
@@ -38,7 +43,7 @@
             {
                 int m_AsciiStartOffset = reader.ReadInt32();
 
-                if (version <= 3)
+                if (version[0] <= 3)
                 {
                     int m_FontCountX = reader.ReadInt32();
                     int m_FontCountY = reader.ReadInt32();
@@ -47,10 +52,10 @@
                 float m_Kerning = reader.ReadSingle();
                 float m_LineSpacing = reader.ReadSingle();
 
-                if (version <= 3)
+                if (version[0] <= 3)
                 {
                     int m_PerCharacterKerning_size = reader.ReadInt32();
-                    for (var i = 0; i < m_PerCharacterKerning_size; i++)
+                    for (int i = 0; i < m_PerCharacterKerning_size; i++)
                     {
                         int first = reader.ReadInt32();
                         float second = reader.ReadSingle();
@@ -66,7 +71,7 @@
                 var m_DefaultMaterial = new PPtr<Material>(reader);
 
                 int m_CharacterRects_size = reader.ReadInt32();
-                for (var i = 0; i < m_CharacterRects_size; i++)
+                for (int i = 0; i < m_CharacterRects_size; i++)
                 {
                     int index = reader.ReadInt32();
                     //Rectf uv
@@ -81,7 +86,7 @@
                     float vertheight = reader.ReadSingle();
                     float width = reader.ReadSingle();
 
-                    if (version >= 4)
+                    if (version[0] >= 4)
                     {
                         var flipped = reader.ReadBoolean();
                         reader.AlignStream();
@@ -91,14 +96,14 @@
                 var m_Texture = new PPtr<Texture>(reader);
 
                 int m_KerningValues_size = reader.ReadInt32();
-                for (var i = 0; i < m_KerningValues_size; i++)
+                for (int i = 0; i < m_KerningValues_size; i++)
                 {
                     int pairfirst = reader.ReadInt16();
                     int pairsecond = reader.ReadInt16();
                     float second = reader.ReadSingle();
                 }
 
-                if (version <= 3)
+                if (version[0] <= 3)
                 {
                     var m_GridFont = reader.ReadBoolean();
                     reader.AlignStream();

AssetStudio/Classes/GLTextureSettings.cs

@@ -1,35 +0,0 @@
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public class GLTextureSettings
-    {
-        public int m_FilterMode;
-        public int m_Aniso;
-        public float m_MipBias;
-        public int m_WrapMode;
-        [JsonInclude]
-        private int m_WrapU { set => m_WrapMode = value; }
-
-        public GLTextureSettings() { }
-
-        public GLTextureSettings(ObjectReader reader)
-        {
-            var version = reader.version;
-
-            m_FilterMode = reader.ReadInt32();
-            m_Aniso = reader.ReadInt32();
-            m_MipBias = reader.ReadSingle();
-            if (version >= 2017)//2017.x and up
-            {
-                m_WrapMode = reader.ReadInt32(); //m_WrapU
-                var m_WrapV = reader.ReadInt32();
-                var m_WrapW = reader.ReadInt32();
-            }
-            else
-            {
-                m_WrapMode = reader.ReadInt32();
-            }
-        }
-    }
-}

AssetStudio/Classes/GameObject.cs

@@ -1,11 +1,13 @@
-using System.Collections.Generic;
-using System.Text.Json.Serialization;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
     public sealed class GameObject : EditorExtension
     {
-        public List<PPtr<Component>> m_Components;
+        public PPtr<Component>[] m_Components;
         public string m_Name;
 
         public Transform m_Transform;
@@ -14,28 +16,21 @@ namespace AssetStudio
         public SkinnedMeshRenderer m_SkinnedMeshRenderer;
         public Animator m_Animator;
         public Animation m_Animation;
-        [JsonIgnore]
-        public CubismModel CubismModel;
 
         public GameObject(ObjectReader reader) : base(reader)
         {
-            var m_ComponentSize = reader.ReadInt32();
-            m_Components = new List<PPtr<Component>>();
-            for (var i = 0; i < m_ComponentSize; i++)
+            int m_Component_size = reader.ReadInt32();
+            m_Components = new PPtr<Component>[m_Component_size];
+            for (int i = 0; i < m_Component_size; i++)
             {
-                if (version < (5, 5)) //5.5 down
+                if ((version[0] == 5 && version[1] < 5) || version[0] < 5) //5.5 down
                 {
-                    var first = reader.ReadInt32();
+                    int first = reader.ReadInt32();
                 }
-                m_Components.Add(new PPtr<Component>(reader));
+                m_Components[i] = new PPtr<Component>(reader);
             }
 
             var m_Layer = reader.ReadInt32();
-            if (version.IsTuanjie && (version > (2022, 3, 2) || (version == (2022, 3, 2) && version.Build >= 11))) //2022.3.2t11(1.1.3) and up
-            {
-                var m_HasEditorInfo = reader.ReadBoolean();
-                reader.AlignStream();
-            }
             m_Name = reader.ReadAlignedString();
         }
     }

AssetStudio/Classes/GraphicsFormat.cs

@@ -1,711 +0,0 @@
-namespace AssetStudio
-{
-    public enum GraphicsFormat
-    {
-        /// <summary>
-        /// The format is not specified.
-        /// </summary>
-        None,
-        /// <summary>
-        /// A one-component, 8-bit unsigned normalized format that has a single 8-bit R component stored with sRGB nonlinear encoding.
-        /// </summary>
-        R8_SRGB,
-        /// <summary>
-        /// A two-component, 16-bit unsigned normalized format that has an 8-bit R component stored with sRGB nonlinear encoding in byte 0, and an 8-bit G component stored with sRGB nonlinear encoding in byte 1.
-        /// </summary>
-        R8G8_SRGB,
-        /// <summary>
-        /// A three-component, 24-bit unsigned normalized format that has an 8-bit R component stored with sRGB nonlinear encoding in byte 0, an 8-bit G component stored with sRGB nonlinear encoding in byte 1, and an 8-bit B component stored with sRGB nonlinear encoding in byte 2.
-        /// </summary>
-        R8G8B8_SRGB,
-        /// <summary>
-        /// A four-component, 32-bit unsigned normalized format that has an 8-bit R component stored with sRGB nonlinear encoding in byte 0, an 8-bit G component stored with sRGB nonlinear encoding in byte 1, an 8-bit B component stored with sRGB nonlinear encoding in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        R8G8B8A8_SRGB,
-        /// <summary>
-        /// A one-component, 8-bit unsigned normalized format that has a single 8-bit R component.
-        /// </summary>
-        R8_UNorm,
-        /// <summary>
-        /// A two-component, 16-bit unsigned normalized format that has an 8-bit R component stored with sRGB nonlinear encoding in byte 0, and an 8-bit G component stored with sRGB nonlinear encoding in byte 1.
-        /// </summary>
-        R8G8_UNorm,
-        /// <summary>
-        /// A three-component, 24-bit unsigned normalized format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, and an 8-bit B component in byte 2.
-        /// </summary>
-        R8G8B8_UNorm,
-        /// <summary>
-        /// A four-component, 32-bit unsigned normalized format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, an 8-bit B component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        R8G8B8A8_UNorm,
-        /// <summary>
-        /// A one-component, 8-bit signed normalized format that has a single 8-bit R component.
-        /// </summary>
-        R8_SNorm,
-        /// <summary>
-        /// A two-component, 16-bit signed normalized format that has an 8-bit R component stored with sRGB nonlinear encoding in byte 0, and an 8-bit G component stored with sRGB nonlinear encoding in byte 1.
-        /// </summary>
-        R8G8_SNorm,
-        /// <summary>
-        /// A three-component, 24-bit signed normalized format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, and an 8-bit B component in byte 2.
-        /// </summary>
-        R8G8B8_SNorm,
-        /// <summary>
-        /// A four-component, 32-bit signed normalized format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, an 8-bit B component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        R8G8B8A8_SNorm,
-        /// <summary>
-        /// A one-component, 8-bit unsigned integer format that has a single 8-bit R component.
-        /// </summary>
-        R8_UInt,
-        /// <summary>
-        /// A two-component, 16-bit unsigned integer format that has an 8-bit R component in byte 0, and an 8-bit G component in byte 1.
-        /// </summary>
-        R8G8_UInt,
-        /// <summary>
-        /// A three-component, 24-bit unsigned integer format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, and an 8-bit B component in byte 2.
-        /// </summary>
-        R8G8B8_UInt,
-        /// <summary>
-        /// A four-component, 32-bit unsigned integer format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, an 8-bit B component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        R8G8B8A8_UInt,
-        /// <summary>
-        /// A one-component, 8-bit signed integer format that has a single 8-bit R component.
-        /// </summary>
-        R8_SInt,
-        /// <summary>
-        /// A two-component, 16-bit signed integer format that has an 8-bit R component in byte 0, and an 8-bit G component in byte 1.
-        /// </summary>
-        R8G8_SInt,
-        /// <summary>
-        /// A three-component, 24-bit signed integer format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, and an 8-bit B component in byte 2.
-        /// </summary>
-        R8G8B8_SInt,
-        /// <summary>
-        /// A four-component, 32-bit signed integer format that has an 8-bit R component in byte 0, an 8-bit G component in byte 1, an 8-bit B component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        R8G8B8A8_SInt,
-        /// <summary>
-        /// A one-component, 16-bit unsigned normalized format that has a single 16-bit R component.
-        /// </summary>
-        R16_UNorm,
-        /// <summary>
-        /// A two-component, 32-bit unsigned normalized format that has a 16-bit R component in bytes 0..1, and a 16-bit G component in bytes 2..3.
-        /// </summary>
-        R16G16_UNorm,
-        /// <summary>
-        /// A three-component, 48-bit unsigned normalized format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, and a 16-bit B component in bytes 4..5.
-        /// </summary>
-        R16G16B16_UNorm,
-        /// <summary>
-        /// A four-component, 64-bit unsigned normalized format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, a 16-bit B component in bytes 4..5, and a 16-bit A component in bytes 6..7.
-        /// </summary>
-        R16G16B16A16_UNorm,
-        /// <summary>
-        /// A one-component, 16-bit signed normalized format that has a single 16-bit R component.
-        /// </summary>
-        R16_SNorm,
-        /// <summary>
-        /// A two-component, 32-bit signed normalized format that has a 16-bit R component in bytes 0..1, and a 16-bit G component in bytes 2..3.
-        /// </summary>
-        R16G16_SNorm,
-        /// <summary>
-        /// A three-component, 48-bit signed normalized format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, and a 16-bit B component in bytes 4..5.
-        /// </summary>
-        R16G16B16_SNorm,
-        /// <summary>
-        /// A four-component, 64-bit signed normalized format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, a 16-bit B component in bytes 4..5, and a 16-bit A component in bytes 6..7.
-        /// </summary>
-        R16G16B16A16_SNorm,
-        /// <summary>
-        /// A one-component, 16-bit unsigned integer format that has a single 16-bit R component.
-        /// </summary>
-        R16_UInt,
-        /// <summary>
-        /// A two-component, 32-bit unsigned integer format that has a 16-bit R component in bytes 0..1, and a 16-bit G component in bytes 2..3.
-        /// </summary>
-        R16G16_UInt,
-        /// <summary>
-        /// A three-component, 48-bit unsigned integer format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, and a 16-bit B component in bytes 4..5.
-        /// </summary>
-        R16G16B16_UInt,
-        /// <summary>
-        /// A four-component, 64-bit unsigned integer format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, a 16-bit B component in bytes 4..5, and a 16-bit A component in bytes 6..7.
-        /// </summary>
-        R16G16B16A16_UInt,
-        /// <summary>
-        /// A one-component, 16-bit signed integer format that has a single 16-bit R component.
-        /// </summary>
-        R16_SInt,
-        /// <summary>
-        /// A two-component, 32-bit signed integer format that has a 16-bit R component in bytes 0..1, and a 16-bit G component in bytes 2..3.
-        /// </summary>
-        R16G16_SInt,
-        /// <summary>
-        /// A three-component, 48-bit signed integer format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, and a 16-bit B component in bytes 4..5.
-        /// </summary>
-        R16G16B16_SInt,
-        /// <summary>
-        /// A four-component, 64-bit signed integer format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, a 16-bit B component in bytes 4..5, and a 16-bit A component in bytes 6..7.
-        /// </summary>
-        R16G16B16A16_SInt,
-        /// <summary>
-        /// A one-component, 32-bit unsigned integer format that has a single 32-bit R component.
-        /// </summary>
-        R32_UInt,
-        /// <summary>
-        /// A two-component, 64-bit unsigned integer format that has a 32-bit R component in bytes 0..3, and a 32-bit G component in bytes 4..7.
-        /// </summary>
-        R32G32_UInt,
-        /// <summary>
-        /// A three-component, 96-bit unsigned integer format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, and a 32-bit B component in bytes 8..11.
-        /// </summary>
-        R32G32B32_UInt,
-        /// <summary>
-        /// A four-component, 128-bit unsigned integer format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, a 32-bit B component in bytes 8..11, and a 32-bit A component in bytes 12..15.
-        /// </summary>
-        R32G32B32A32_UInt,
-        /// <summary>
-        /// A one-component, 32-bit signed integer format that has a single 32-bit R component.
-        /// </summary>
-        R32_SInt,
-        /// <summary>
-        /// A two-component, 64-bit signed integer format that has a 32-bit R component in bytes 0..3, and a 32-bit G component in bytes 4..7.
-        /// </summary>
-        R32G32_SInt,
-        /// <summary>
-        /// A three-component, 96-bit signed integer format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, and a 32-bit B component in bytes 8..11.
-        /// </summary>
-        R32G32B32_SInt,
-        /// <summary>
-        /// A four-component, 128-bit signed integer format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, a 32-bit B component in bytes 8..11, and a 32-bit A component in bytes 12..15.
-        /// </summary>
-        R32G32B32A32_SInt,
-        /// <summary>
-        /// A one-component, 16-bit signed floating-point format that has a single 16-bit R component.
-        /// </summary>
-        R16_SFloat,
-        /// <summary>
-        /// A two-component, 32-bit signed floating-point format that has a 16-bit R component in bytes 0..1, and a 16-bit G component in bytes 2..3.
-        /// </summary>
-        R16G16_SFloat,
-        /// <summary>
-        /// A three-component, 48-bit signed floating-point format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, and a 16-bit B component in bytes 4..5.
-        /// </summary>
-        R16G16B16_SFloat,
-        /// <summary>
-        /// A four-component, 64-bit signed floating-point format that has a 16-bit R component in bytes 0..1, a 16-bit G component in bytes 2..3, a 16-bit B component in bytes 4..5, and a 16-bit A component in bytes 6..7.
-        /// </summary>
-        R16G16B16A16_SFloat,
-        /// <summary>
-        /// A one-component, 32-bit signed floating-point format that has a single 32-bit R component.
-        /// </summary>
-        R32_SFloat,
-        /// <summary>
-        /// A two-component, 64-bit signed floating-point format that has a 32-bit R component in bytes 0..3, and a 32-bit G component in bytes 4..7.
-        /// </summary>
-        R32G32_SFloat,
-        /// <summary>
-        /// A three-component, 96-bit signed floating-point format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, and a 32-bit B component in bytes 8..11.
-        /// </summary>
-        R32G32B32_SFloat,
-        /// <summary>
-        /// A four-component, 128-bit signed floating-point format that has a 32-bit R component in bytes 0..3, a 32-bit G component in bytes 4..7, a 32-bit B component in bytes 8..11, and a 32-bit A component in bytes 12..15.
-        /// </summary>
-        R32G32B32A32_SFloat,
-        /// <summary>
-        /// A three-component, 24-bit unsigned normalized format that has an 8-bit B component stored with sRGB nonlinear encoding in byte 0, an 8-bit G component stored with sRGB nonlinear encoding in byte 1, and an 8-bit R component stored with sRGB nonlinear encoding in byte 2.
-        /// </summary>
-        B8G8R8_SRGB = 56,
-        /// <summary>
-        /// A four-component, 32-bit unsigned normalized format that has an 8-bit B component stored with sRGB nonlinear encoding in byte 0, an 8-bit G component stored with sRGB nonlinear encoding in byte 1, an 8-bit R component stored with sRGB nonlinear encoding in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        B8G8R8A8_SRGB,
-        /// <summary>
-        /// A three-component, 24-bit unsigned normalized format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, and an 8-bit R component in byte 2.
-        /// </summary>
-        B8G8R8_UNorm,
-        /// <summary>
-        /// A four-component, 32-bit unsigned normalized format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, an 8-bit R component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        B8G8R8A8_UNorm,
-        /// <summary>
-        /// A three-component, 24-bit signed normalized format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, and an 8-bit R component in byte 2.
-        /// </summary>
-        B8G8R8_SNorm,
-        /// <summary>
-        /// A four-component, 32-bit signed normalized format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, an 8-bit R component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        B8G8R8A8_SNorm,
-        /// <summary>
-        /// A three-component, 24-bit unsigned integer format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, and an 8-bit R component in byte 2
-        /// </summary>
-        B8G8R8_UInt,
-        /// <summary>
-        /// A four-component, 32-bit unsigned integer format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, an 8-bit R component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        B8G8R8A8_UInt,
-        /// <summary>
-        /// A three-component, 24-bit signed integer format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, and an 8-bit R component in byte 2.
-        /// </summary>
-        B8G8R8_SInt,
-        /// <summary>
-        /// A four-component, 32-bit signed integer format that has an 8-bit B component in byte 0, an 8-bit G component in byte 1, an 8-bit R component in byte 2, and an 8-bit A component in byte 3.
-        /// </summary>
-        B8G8R8A8_SInt,
-        /// <summary>
-        /// A four-component, 16-bit packed unsigned normalized format that has a 4-bit R component in bits 12..15, a 4-bit G component in bits 8..11, a 4-bit B component in bits 4..7, and a 4-bit A component in bits 0..3.
-        /// </summary>
-        R4G4B4A4_UNormPack16,
-        /// <summary>
-        /// A four-component, 16-bit packed unsigned normalized format that has a 4-bit B component in bits 12..15, a 4-bit G component in bits 8..11, a 4-bit R component in bits 4..7, and a 4-bit A component in bits 0..3.
-        /// </summary>
-        B4G4R4A4_UNormPack16,
-        /// <summary>
-        /// A three-component, 16-bit packed unsigned normalized format that has a 5-bit R component in bits 11..15, a 6-bit G component in bits 5..10, and a 5-bit B component in bits 0..4.
-        /// </summary>
-        R5G6B5_UNormPack16,
-        /// <summary>
-        /// A three-component, 16-bit packed unsigned normalized format that has a 5-bit B component in bits 11..15, a 6-bit G component in bits 5..10, and a 5-bit R component in bits 0..4.
-        /// </summary>
-        B5G6R5_UNormPack16,
-        /// <summary>
-        /// A four-component, 16-bit packed unsigned normalized format that has a 5-bit R component in bits 11..15, a 5-bit G component in bits 6..10, a 5-bit B component in bits 1..5, and a 1-bit A component in bit 0.
-        /// </summary>
-        R5G5B5A1_UNormPack16,
-        /// <summary>
-        /// A four-component, 16-bit packed unsigned normalized format that has a 5-bit B component in bits 11..15, a 5-bit G component in bits 6..10, a 5-bit R component in bits 1..5, and a 1-bit A component in bit 0.
-        /// </summary>
-        B5G5R5A1_UNormPack16,
-        /// <summary>
-        /// A four-component, 16-bit packed unsigned normalized format that has a 1-bit A component in bit 15, a 5-bit R component in bits 10..14, a 5-bit G component in bits 5..9, and a 5-bit B component in bits 0..4.
-        /// </summary>
-        A1R5G5B5_UNormPack16,
-        /// <summary>
-        /// A three-component, 32-bit packed unsigned floating-point format that has a 5-bit shared exponent in bits 27..31, a 9-bit B component mantissa in bits 18..26, a 9-bit G component mantissa in bits 9..17, and a 9-bit R component mantissa in bits 0..8.
-        /// </summary>
-        E5B9G9R9_UFloatPack32,
-        /// <summary>
-        /// A three-component, 32-bit packed unsigned floating-point format that has a 10-bit B component in bits 22..31, an 11-bit G component in bits 11..21, an 11-bit R component in bits 0..10. 
-        /// </summary>
-        B10G11R11_UFloatPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 2-bit A component in bits 30..31, a 10-bit B component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit R component in bits 0..9.
-        /// </summary>
-        A2B10G10R10_UNormPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned integer format that has a 2-bit A component in bits 30..31, a 10-bit B component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit R component in bits 0..9.
-        /// </summary>
-        A2B10G10R10_UIntPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed signed integer format that has a 2-bit A component in bits 30..31, a 10-bit B component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit R component in bits 0..9.
-        /// </summary>
-        A2B10G10R10_SIntPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 2-bit A component in bits 30..31, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9.
-        /// </summary>
-        A2R10G10B10_UNormPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned integer format that has a 2-bit A component in bits 30..31, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9.
-        /// </summary>
-        A2R10G10B10_UIntPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed signed integer format that has a 2-bit A component in bits 30..31, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9.
-        /// </summary>
-        A2R10G10B10_SIntPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 2-bit A component in bits 30..31, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are gamma encoded and their values range from -0.5271 to 1.66894. The alpha component is clamped to either 0.0 or 1.0 on sampling, rendering, and writing operations.
-        /// </summary>
-        A2R10G10B10_XRSRGBPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 2-bit A component in bits 30..31, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are linearly encoded and their values range from -0.752941 to 1.25098 (pre-expansion). The alpha component is clamped to either 0.0 or 1.0 on sampling, rendering, and writing operations.
-        /// </summary>
-        A2R10G10B10_XRUNormPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are gamma encoded and their values range from -0.5271 to 1.66894. The alpha component is clamped to either 0.0 or 1.0 on sampling, rendering, and writing operations.
-        /// </summary>
-        R10G10B10_XRSRGBPack32,
-        /// <summary>
-        /// A four-component, 32-bit packed unsigned normalized format that has a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are linearly encoded and their values range from -0.752941 to 1.25098 (pre-expansion).
-        /// </summary>
-        R10G10B10_XRUNormPack32,
-        /// <summary>
-        /// A four-component, 64-bit packed unsigned normalized format that has a 10-bit A component in bits 30..39, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are gamma encoded and their values range from -0.5271 to 1.66894. The alpha component is clamped to either 0.0 or 1.0 on sampling, rendering, and writing operations.
-        /// </summary>
-        A10R10G10B10_XRSRGBPack32,
-        /// <summary>
-        /// A four-component, 64-bit packed unsigned normalized format that has a 10-bit A component in bits 30..39, a 10-bit R component in bits 20..29, a 10-bit G component in bits 10..19, and a 10-bit B component in bits 0..9. The components are linearly encoded and their values range from -0.752941 to 1.25098 (pre-expansion). The alpha component is clamped to either 0.0 or 1.0 on sampling, rendering, and writing operations.
-        /// </summary>
-        A10R10G10B10_XRUNormPack32,
-        /// <summary>
-        /// A one-component, 16-bit unsigned normalized format that has a single 16-bit depth component.
-        /// </summary>
-        D16_UNorm = 90,
-        /// <summary>
-        /// A two-component, 32-bit format that has 24 unsigned normalized bits in the depth component and, optionally: 8 bits that are unused.
-        /// </summary>
-        D24_UNorm,
-        /// <summary>
-        /// A two-component, 32-bit packed format that has 8 unsigned integer bits in the stencil component, and 24 unsigned normalized bits in the depth component.
-        /// </summary>
-        D24_UNorm_S8_UInt,
-        /// <summary>
-        /// A one-component, 32-bit signed floating-point format that has 32-bits in the depth component.
-        /// </summary>
-        D32_SFloat,
-        /// <summary>
-        /// A two-component format that has 32 signed float bits in the depth component and 8 unsigned integer bits in the stencil component. There are optionally: 24-bits that are unused.
-        /// </summary>
-        D32_SFloat_S8_UInt,
-        /// <summary>
-        /// A one-component, 8-bit unsigned integer format that has 8-bits in the stencil component.
-        /// </summary>
-        S8_UInt,
-        /// <summary>
-        /// A three-component, block-compressed format (also known as BC1). Each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding. This format has a 1 bit alpha channel.
-        /// </summary>
-        RGBA_DXT1_SRGB,
-        /// <summary>
-        /// A three-component, block-compressed format (also known as BC1). Each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data. This format has a 1 bit alpha channel.
-        /// </summary>
-        RGBA_DXT1_UNorm,
-        /// <summary>
-        /// A four-component, block-compressed format (also known as BC2) where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values with sRGB nonlinear encoding.
-        /// </summary>
-        RGBA_DXT3_SRGB,
-        /// <summary>
-        /// A four-component, block-compressed format (also known as BC2) where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values.
-        /// </summary>
-        RGBA_DXT3_UNorm,
-        /// <summary>
-        /// A four-component, block-compressed format (also known as BC3) where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values with sRGB nonlinear encoding.
-        /// </summary>
-        RGBA_DXT5_SRGB,
-        /// <summary>
-        /// A four-component, block-compressed format (also known as BC3) where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values.
-        /// </summary>
-        RGBA_DXT5_UNorm,
-        /// <summary>
-        /// A one-component, block-compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized red texel data.
-        /// </summary>
-        R_BC4_UNorm,
-        /// <summary>
-        /// A one-component, block-compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of signed normalized red texel data.
-        /// </summary>
-        R_BC4_SNorm,
-        /// <summary>
-        /// A two-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RG texel data with the first 64 bits encoding red values followed by 64 bits encoding green values.
-        /// </summary>
-        RG_BC5_UNorm,
-        /// <summary>
-        /// A two-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of signed normalized RG texel data with the first 64 bits encoding red values followed by 64 bits encoding green values.
-        /// </summary>
-        RG_BC5_SNorm,
-        /// <summary>
-        /// A three-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned floating-point RGB texel data.
-        /// </summary>
-        RGB_BC6H_UFloat,
-        /// <summary>
-        /// A three-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of signed floating-point RGB texel data.
-        /// </summary>
-        RGB_BC6H_SFloat,
-        /// <summary>
-        /// A four-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_BC7_SRGB,
-        /// <summary>
-        /// A four-component, block-compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_BC7_UNorm,
-        /// <summary>
-        /// A three-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 8×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_PVRTC_2Bpp_SRGB,
-        /// <summary>
-        /// A three-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 8×4 rectangle of unsigned normalized RGB texel data. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_PVRTC_2Bpp_UNorm,
-        /// <summary>
-        /// A three-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_PVRTC_4Bpp_SRGB,
-        /// <summary>
-        /// A three-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_PVRTC_4Bpp_UNorm,
-        /// <summary>
-        /// A four-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 8×4 rectangle of unsigned normalized RGBA texel data with the first 32 bits encoding alpha values followed by 32 bits encoding RGB values with sRGB nonlinear encoding applied.
-        /// </summary>
-        RGBA_PVRTC_2Bpp_SRGB,
-        /// <summary>
-        /// A four-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 8×4 rectangle of unsigned normalized RGBA texel data with the first 32 bits encoding alpha values followed by 32 bits encoding RGB values.
-        /// </summary>
-        RGBA_PVRTC_2Bpp_UNorm,
-        /// <summary>
-        /// A four-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 32 bits encoding alpha values followed by 32 bits encoding RGB values with sRGB nonlinear encoding applied.
-        /// </summary>
-        RGBA_PVRTC_4Bpp_SRGB,
-        /// <summary>
-        /// A four-component, PVRTC compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 32 bits encoding alpha values followed by 32 bits encoding RGB values.
-        /// </summary>
-        RGBA_PVRTC_4Bpp_UNorm,
-        /// <summary>
-        /// A three-component, ETC compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_ETC_UNorm,
-        /// <summary>
-        /// A three-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_ETC2_SRGB,
-        /// <summary>
-        /// A three-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data. This format has no alpha and is considered opaque.
-        /// </summary>
-        RGB_ETC2_UNorm,
-        /// <summary>
-        /// A four-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding, and provides 1 bit of alpha.
-        /// </summary>
-        RGB_A1_ETC2_SRGB,
-        /// <summary>
-        /// A four-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data, and provides 1 bit of alpha.
-        /// </summary>
-        RGB_A1_ETC2_UNorm,
-        /// <summary>
-        /// A four-component, ETC2 compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values with sRGB nonlinear encoding applied.
-        /// </summary>
-        RGBA_ETC2_SRGB,
-        /// <summary>
-        /// A four-component, ETC2 compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with the first 64 bits encoding alpha values followed by 64 bits encoding RGB values.
-        /// </summary>
-        RGBA_ETC2_UNorm,
-        /// <summary>
-        /// A one-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized red texel data.
-        /// </summary>
-        R_EAC_UNorm,
-        /// <summary>
-        /// A one-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of signed normalized red texel data.
-        /// </summary>
-        R_EAC_SNorm,
-        /// <summary>
-        /// A two-component, ETC2 compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RG texel data with the first 64 bits encoding red values followed by 64 bits encoding green values.
-        /// </summary>
-        RG_EAC_UNorm,
-        /// <summary>
-        /// A two-component, ETC2 compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of signed normalized RG texel data with the first 64 bits encoding red values followed by 64 bits encoding green values.
-        /// </summary>
-        RG_EAC_SNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC4X4_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC4X4_UNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 5×5 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC5X5_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 5×5 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC5X5_UNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 6×6 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC6X6_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 6×6 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC6X6_UNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes an 8×8 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC8X8_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes an 8×8 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC8X8_UNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 10×10 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC10X10_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 10×10 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC10X10_UNorm,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 12×12 rectangle of unsigned normalized RGBA texel data with sRGB nonlinear encoding applied to the RGB components.
-        /// </summary>
-        RGBA_ASTC12X12_SRGB,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 12×12 rectangle of unsigned normalized RGBA texel data.
-        /// </summary>
-        RGBA_ASTC12X12_UNorm,
-        /// <summary>
-        /// YUV 4:2:2 Video resource format.
-        /// </summary>
-        YUV2,
-        /// <summary>
-        /// GraphicsFormat.YUV2.
-        /// </summary>
-        VideoAuto = 144,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 4×4 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC4X4_UFloat,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 5×5 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC5X5_UFloat,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 6×6 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC6X6_UFloat,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes an 8×8 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC8X8_UFloat,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 10×10 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC10X10_UFloat,
-        /// <summary>
-        /// A four-component, ASTC compressed format where each 128-bit compressed texel block encodes a 12×12 rectangle of float RGBA texel data.
-        /// </summary>
-        RGBA_ASTC12X12_UFloat,
-        /// <summary>
-        /// A two-component, 24-bit format that has 16 unsigned normalized bits in the depth component and 8 unsigned integer bits in the stencil component. Most platforms do not support this format.
-        /// </summary>
-        D16_UNorm_S8_UInt,
-    }
-
-    public static class GraphicsFormatExtension
-    {
-        public static TextureFormat ToTextureFormat(this GraphicsFormat graphicsFormat)
-        {
-            switch (graphicsFormat)
-            {
-                case GraphicsFormat.R8_SRGB:
-                case GraphicsFormat.R8_UInt:
-                case GraphicsFormat.R8_UNorm:
-                    return TextureFormat.R8;
-                case GraphicsFormat.R8G8_SRGB:
-                case GraphicsFormat.R8G8_UInt:
-                case GraphicsFormat.R8G8_UNorm:
-                    return TextureFormat.RG16;
-                case GraphicsFormat.R8G8B8_SRGB:
-                case GraphicsFormat.R8G8B8_UInt:
-                case GraphicsFormat.R8G8B8_UNorm:
-                    return TextureFormat.RGB24;
-                case GraphicsFormat.R8G8B8A8_SRGB:
-                case GraphicsFormat.R8G8B8A8_UInt:
-                case GraphicsFormat.R8G8B8A8_UNorm:
-                    return TextureFormat.RGBA32;
-                case GraphicsFormat.R16_UInt:
-                case GraphicsFormat.R16_UNorm:
-                    return TextureFormat.R16;
-                case GraphicsFormat.R16G16_UInt:
-                case GraphicsFormat.R16G16_UNorm:
-                    return TextureFormat.RG32;
-                case GraphicsFormat.R16G16B16_UInt:
-                case GraphicsFormat.R16G16B16_UNorm:
-                    return TextureFormat.RGB48;
-                case GraphicsFormat.R16G16B16A16_UInt:
-                case GraphicsFormat.R16G16B16A16_UNorm:
-                    return TextureFormat.RGBA64;
-                case GraphicsFormat.R16_SFloat:
-                    return TextureFormat.RHalf;
-                case GraphicsFormat.R16G16_SFloat:
-                    return TextureFormat.RGHalf;
-                case GraphicsFormat.R16G16B16_SFloat: //?
-                case GraphicsFormat.R16G16B16A16_SFloat:
-                    return TextureFormat.RGBAHalf;
-                case GraphicsFormat.R32_SFloat:
-                    return TextureFormat.RFloat;
-                case GraphicsFormat.R32G32_SFloat:
-                    return TextureFormat.RGFloat;
-                case GraphicsFormat.R32G32B32_SFloat: //?
-                case GraphicsFormat.R32G32B32A32_SFloat:
-                    return TextureFormat.RGBAFloat;
-                case GraphicsFormat.B8G8R8A8_SRGB:
-                case GraphicsFormat.B8G8R8A8_UInt:
-                case GraphicsFormat.B8G8R8A8_UNorm:
-                    return TextureFormat.BGRA32;
-                case GraphicsFormat.E5B9G9R9_UFloatPack32:
-                    return TextureFormat.RGB9e5Float;
-                case GraphicsFormat.RGBA_DXT1_SRGB:
-                case GraphicsFormat.RGBA_DXT1_UNorm:
-                    return TextureFormat.DXT1;
-                case GraphicsFormat.RGBA_DXT3_SRGB:
-                case GraphicsFormat.RGBA_DXT3_UNorm:
-                    return TextureFormat.DXT3;
-                case GraphicsFormat.RGBA_DXT5_SRGB:
-                case GraphicsFormat.RGBA_DXT5_UNorm:
-                    return TextureFormat.DXT5;
-                case GraphicsFormat.R_BC4_UNorm:
-                    return TextureFormat.BC4;
-                case GraphicsFormat.RG_BC5_UNorm:
-                    return TextureFormat.BC5;
-                case GraphicsFormat.RGB_BC6H_SFloat:
-                case GraphicsFormat.RGB_BC6H_UFloat:
-                    return TextureFormat.BC6H;
-                case GraphicsFormat.RGBA_BC7_SRGB:
-                case GraphicsFormat.RGBA_BC7_UNorm:
-                    return TextureFormat.BC7;
-                case GraphicsFormat.RGB_PVRTC_2Bpp_SRGB:
-                case GraphicsFormat.RGB_PVRTC_2Bpp_UNorm:
-                case GraphicsFormat.RGBA_PVRTC_2Bpp_SRGB:
-                case GraphicsFormat.RGBA_PVRTC_2Bpp_UNorm:
-                    return TextureFormat.PVRTC_RGBA2;
-                case GraphicsFormat.RGB_PVRTC_4Bpp_SRGB:
-                case GraphicsFormat.RGB_PVRTC_4Bpp_UNorm:
-                case GraphicsFormat.RGBA_PVRTC_4Bpp_SRGB:
-                case GraphicsFormat.RGBA_PVRTC_4Bpp_UNorm:
-                    return TextureFormat.PVRTC_RGBA4;
-                case GraphicsFormat.RGB_ETC_UNorm:
-                    return TextureFormat.ETC_RGB4;
-                case GraphicsFormat.RGB_ETC2_SRGB:
-                case GraphicsFormat.RGB_ETC2_UNorm:
-                    return TextureFormat.ETC2_RGB;
-                case GraphicsFormat.RGB_A1_ETC2_SRGB:
-                case GraphicsFormat.RGB_A1_ETC2_UNorm:
-                    return TextureFormat.ETC2_RGBA1;
-                case GraphicsFormat.RGBA_ETC2_SRGB:
-                case GraphicsFormat.RGBA_ETC2_UNorm:
-                    return TextureFormat.ETC2_RGBA8;
-                case GraphicsFormat.R_EAC_UNorm:
-                    return TextureFormat.EAC_R;
-                case GraphicsFormat.R_EAC_SNorm:
-                    return TextureFormat.EAC_R_SIGNED;
-                case GraphicsFormat.RG_EAC_UNorm:
-                    return TextureFormat.EAC_RG;
-                case GraphicsFormat.RG_EAC_SNorm:
-                    return TextureFormat.EAC_RG_SIGNED;
-                case GraphicsFormat.RGBA_ASTC4X4_SRGB:
-                case GraphicsFormat.RGBA_ASTC4X4_UNorm:
-                    return TextureFormat.ASTC_RGBA_4x4;
-                case GraphicsFormat.RGBA_ASTC5X5_SRGB:
-                case GraphicsFormat.RGBA_ASTC5X5_UNorm:
-                    return TextureFormat.ASTC_RGBA_5x5;
-                case GraphicsFormat.RGBA_ASTC6X6_SRGB:
-                case GraphicsFormat.RGBA_ASTC6X6_UNorm: 
-                    return TextureFormat.ASTC_RGBA_6x6;
-                case GraphicsFormat.RGBA_ASTC8X8_SRGB:
-                case GraphicsFormat.RGBA_ASTC8X8_UNorm:
-                    return TextureFormat.ASTC_RGBA_8x8;
-                case GraphicsFormat.RGBA_ASTC10X10_SRGB:
-                case GraphicsFormat.RGBA_ASTC10X10_UNorm:
-                    return TextureFormat.ASTC_RGBA_10x10;
-                case GraphicsFormat.RGBA_ASTC12X12_SRGB:
-                case GraphicsFormat.RGBA_ASTC12X12_UNorm:
-                    return TextureFormat.ASTC_RGBA_12x12;
-                case GraphicsFormat.YUV2:
-                case GraphicsFormat.VideoAuto:
-                    return TextureFormat.YUY2;
-                default:
-                    return 0;
-            }
-        }
-    }
-}

AssetStudio/Classes/Material.cs

@@ -1,5 +1,4 @@
 using System.Collections.Generic;
-using System.Text.Json;
 
 namespace AssetStudio
 {
@@ -9,8 +8,6 @@ namespace AssetStudio
         public Vector2 m_Scale;
         public Vector2 m_Offset;
 
-        public UnityTexEnv() { }
-
         public UnityTexEnv(ObjectReader reader)
         {
             m_Texture = new PPtr<Texture>(reader);
@@ -21,46 +18,44 @@ namespace AssetStudio
 
     public class UnityPropertySheet
     {
-        public List<KeyValuePair<string, UnityTexEnv>> m_TexEnvs;
-        public List<KeyValuePair<string, int>> m_Ints;
-        public List<KeyValuePair<string, float>> m_Floats;
-        public List<KeyValuePair<string, Color>> m_Colors;
-
-        public UnityPropertySheet() { }
+        public KeyValuePair<string, UnityTexEnv>[] m_TexEnvs;
+        public KeyValuePair<string, int>[] m_Ints;
+        public KeyValuePair<string, float>[] m_Floats;
+        public KeyValuePair<string, Color>[] m_Colors;
 
         public UnityPropertySheet(ObjectReader reader)
         {
             var version = reader.version;
 
             int m_TexEnvsSize = reader.ReadInt32();
-            m_TexEnvs = new List<KeyValuePair<string, UnityTexEnv>>();
-            for (var i = 0; i < m_TexEnvsSize; i++)
+            m_TexEnvs = new KeyValuePair<string, UnityTexEnv>[m_TexEnvsSize];
+            for (int i = 0; i < m_TexEnvsSize; i++)
             {
-                m_TexEnvs.Add(new KeyValuePair<string, UnityTexEnv>(reader.ReadAlignedString(), new UnityTexEnv(reader)));
+                m_TexEnvs[i] = new KeyValuePair<string, UnityTexEnv>(reader.ReadAlignedString(), new UnityTexEnv(reader));
             }
 
-            if (version >= 2021) //2021.1 and up
+            if (version[0] >= 2021) //2021.1 and up
             {
                 int m_IntsSize = reader.ReadInt32();
-                m_Ints = new List<KeyValuePair<string, int>>();
-                for (var i = 0; i < m_IntsSize; i++)
+                m_Ints = new KeyValuePair<string, int>[m_IntsSize];
+                for (int i = 0; i < m_IntsSize; i++)
                 {
-                    m_Ints.Add(new KeyValuePair<string, int>(reader.ReadAlignedString(), reader.ReadInt32()));
+                    m_Ints[i] = new KeyValuePair<string, int>(reader.ReadAlignedString(), reader.ReadInt32());
                 }
             }
 
             int m_FloatsSize = reader.ReadInt32();
-            m_Floats = new List<KeyValuePair<string, float>>();
-            for (var i = 0; i < m_FloatsSize; i++)
+            m_Floats = new KeyValuePair<string, float>[m_FloatsSize];
+            for (int i = 0; i < m_FloatsSize; i++)
             {
-                m_Floats.Add(new KeyValuePair<string, float>(reader.ReadAlignedString(), reader.ReadSingle()));
+                m_Floats[i] = new KeyValuePair<string, float>(reader.ReadAlignedString(), reader.ReadSingle());
             }
 
             int m_ColorsSize = reader.ReadInt32();
-            m_Colors = new List<KeyValuePair<string, Color>>();
-            for (var i = 0; i < m_ColorsSize; i++)
+            m_Colors = new KeyValuePair<string, Color>[m_ColorsSize];
+            for (int i = 0; i < m_ColorsSize; i++)
             {
-                m_Colors.Add(new KeyValuePair<string, Color>(reader.ReadAlignedString(), reader.ReadColor4()));
+                m_Colors[i] = new KeyValuePair<string, Color>(reader.ReadAlignedString(), reader.ReadColor4());
             }
         }
     }
@@ -70,62 +65,53 @@ namespace AssetStudio
         public PPtr<Shader> m_Shader;
         public UnityPropertySheet m_SavedProperties;
 
-        public Material() { }
-
-        public Material(ObjectReader reader, byte[] type, JsonSerializerOptions jsonOptions) : base(reader)
-        {
-            var parsedMaterial = JsonSerializer.Deserialize<Material>(type, jsonOptions);
-            m_Shader = parsedMaterial.m_Shader;
-            m_SavedProperties = parsedMaterial.m_SavedProperties;
-        }
-
         public Material(ObjectReader reader) : base(reader)
         {
             m_Shader = new PPtr<Shader>(reader);
 
-            if (version == 4 && version.Minor >= 1) //4.1 - 4.7.2
+            if (version[0] == 4 && version[1] >= 1) //4.x
             {
                 var m_ShaderKeywords = reader.ReadStringArray();
             }
 
-            if (version >= (2021, 2, 18)) //2021.2.18 and up
+            if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 3)) //2021.3 and up
             {
                 var m_ValidKeywords = reader.ReadStringArray();
                 var m_InvalidKeywords = reader.ReadStringArray();
             }
-            else if (version >= 5) //5.0 - 2021.2.17
+            else if (version[0] >= 5) //5.0 ~ 2021.2
             {
                 var m_ShaderKeywords = reader.ReadAlignedString();
             }
 
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 var m_LightmapFlags = reader.ReadUInt32();
             }
 
-            if (version >= (5, 6)) //5.6 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
             {
                 var m_EnableInstancingVariants = reader.ReadBoolean();
                 //var m_DoubleSidedGI = a_Stream.ReadBoolean(); //2017 and up
                 reader.AlignStream();
             }
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 var m_CustomRenderQueue = reader.ReadInt32();
             }
 
-            if (version >= (5, 1)) //5.1 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 1)) //5.1 and up
             {
                 var stringTagMapSize = reader.ReadInt32();
-                for (var i = 0; i < stringTagMapSize; i++)
+                for (int i = 0; i < stringTagMapSize; i++)
                 {
                     var first = reader.ReadAlignedString();
                     var second = reader.ReadAlignedString();
                 }
             }
 
-            if (version >= (5, 6)) //5.6 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
             {
                 var disabledShaderPasses = reader.ReadStringArray();
             }

AssetStudio/Classes/MeshFilter.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class MeshFilter : Component
     {

AssetStudio/Classes/MeshRenderer.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class MeshRenderer : Renderer
     {

AssetStudio/Classes/MonoBehaviour.cs

@@ -1,12 +1,15 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
-    public class MonoBehaviour : Behaviour
+    public sealed class MonoBehaviour : Behaviour
     {
         public PPtr<MonoScript> m_Script;
         public string m_Name;
 
-        public MonoBehaviour() { }
-
         public MonoBehaviour(ObjectReader reader) : base(reader)
         {
             m_Script = new PPtr<MonoScript>(reader);

AssetStudio/Classes/MonoScript.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class MonoScript : NamedObject
     {
@@ -8,31 +13,29 @@
 
         public MonoScript(ObjectReader reader) : base(reader)
         {
-            if (version >= (3, 4)) //3.4 and up
+            if (version[0] > 3 || (version[0] == 3 && version[1] >= 4)) //3.4 and up
             {
                 var m_ExecutionOrder = reader.ReadInt32();
-                
-                if (version < 5) //5.0 down
-                {
-                    var m_PropertiesHash = reader.ReadUInt32();
-                }
-                else
-                {
-                    var m_PropertiesHash = reader.ReadBytes(16);
-                }
             }
-
-            if (version < 3) //3.0 down
+            if (version[0] < 5) //5.0 down
+            {
+                var m_PropertiesHash = reader.ReadUInt32();
+            }
+            else
+            {
+                var m_PropertiesHash = reader.ReadBytes(16);
+            }
+            if (version[0] < 3) //3.0 down
             {
                 var m_PathName = reader.ReadAlignedString();
             }
             m_ClassName = reader.ReadAlignedString();
-            if (version >= 3) //3.0 and up
+            if (version[0] >= 3) //3.0 and up
             {
                 m_Namespace = reader.ReadAlignedString();
             }
             m_AssemblyName = reader.ReadAlignedString();
-            if (version < (2018, 2)) //2018.2 down
+            if (version[0] < 2018 || (version[0] == 2018 && version[1] < 2)) //2018.2 down
             {
                 var m_IsEditorScript = reader.ReadBoolean();
             }

AssetStudio/Classes/MovieTexture.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class MovieTexture : Texture
     {
@@ -7,13 +12,10 @@
 
         public MovieTexture(ObjectReader reader) : base(reader)
         {
-            if (reader.version < (2019, 3)) //2019.3 down
-            {
-                var m_Loop = reader.ReadBoolean();
-                reader.AlignStream();
-                m_AudioClip = new PPtr<AudioClip>(reader);
-                m_MovieData = reader.ReadUInt8Array();
-            }
+            var m_Loop = reader.ReadBoolean();
+            reader.AlignStream();
+            m_AudioClip = new PPtr<AudioClip>(reader);
+            m_MovieData = reader.ReadUInt8Array();
         }
     }
 }

AssetStudio/Classes/NamedObject.cs

@@ -1,11 +1,14 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public class NamedObject : EditorExtension
     {
         public string m_Name;
 
-        protected NamedObject() { }
-
         protected NamedObject(ObjectReader reader) : base(reader)
         {
             m_Name = reader.ReadAlignedString();

AssetStudio/Classes/Object.cs

@@ -1,47 +1,18 @@
 using System.Collections.Specialized;
-using System.Text.Encodings.Web;
-using System.Text.Json;
-using System.Text.Json.Nodes;
-using System.Text.Json.Serialization;
 
 namespace AssetStudio
 {
     public class Object
     {
-        [JsonIgnore]
         public SerializedFile assetsFile;
-        [JsonIgnore]
         public ObjectReader reader;
         public long m_PathID;
-        [JsonIgnore]
-        public UnityVersion version;
-        [JsonIgnore]
+        public int[] version;
+        protected BuildType buildType;
         public BuildTarget platform;
-        [JsonConverter(typeof(JsonStringEnumConverter))]
         public ClassIDType type;
-        [JsonIgnore]
         public SerializedType serializedType;
-        public int classID;
         public uint byteSize;
-        [JsonIgnore]
-        public string Name;
-        private static readonly JsonSerializerOptions jsonOptions;
-
-        static Object()
-        {
-            jsonOptions = new JsonSerializerOptions
-            {
-                Converters = { new JsonConverterHelper.FloatConverter() },
-                Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
-                NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals,
-                ReferenceHandler = ReferenceHandler.IgnoreCycles,
-                PropertyNameCaseInsensitive = true,
-                IncludeFields = true,
-                WriteIndented = true,
-            };
-        }
-
-        public Object() { }
 
         public Object(ObjectReader reader)
         {
@@ -51,9 +22,9 @@ namespace AssetStudio
             type = reader.type;
             m_PathID = reader.m_PathID;
             version = reader.version;
+            buildType = reader.buildType;
             platform = reader.platform;
             serializedType = reader.serializedType;
-            classID = reader.classID;
             byteSize = reader.byteSize;
 
             if (platform == BuildTarget.NoTarget)
@@ -62,67 +33,39 @@ namespace AssetStudio
             }
         }
 
-        public string DumpObject()
+        public string Dump()
         {
-            string str = null;
-            try
+            if (serializedType?.m_Type != null)
             {
-                if (this is Mesh m_Mesh)
-                {
-                    m_Mesh.ProcessData();
-                }
-
-                str = JsonSerializer.Deserialize<JsonObject>(JsonSerializer.SerializeToUtf8Bytes(this, GetType(), jsonOptions))
-                    .ToJsonString(jsonOptions).Replace("  ", "    ");
+                return TypeTreeHelper.ReadTypeString(serializedType.m_Type, reader);
             }
-            catch
-            {
-                //ignore
-            }
-
-            return str;
+            return null;
         }
 
-        public string Dump(TypeTree m_Type = null)
+        public string Dump(TypeTree m_Type)
         {
-            m_Type = m_Type ?? serializedType?.m_Type;
-            if (m_Type == null)
-                return null;
-
-            return TypeTreeHelper.ReadTypeString(m_Type, reader);
+            if (m_Type != null)
+            {
+                return TypeTreeHelper.ReadTypeString(m_Type, reader);
+            }
+            return null;
         }
 
-        public OrderedDictionary ToType(TypeTree m_Type = null)
+        public OrderedDictionary ToType()
         {
-            m_Type = m_Type ?? serializedType?.m_Type;
-            if (m_Type == null)
-                return null;
-
-            return TypeTreeHelper.ReadType(m_Type, reader);
+            if (serializedType?.m_Type != null)
+            {
+                return TypeTreeHelper.ReadType(serializedType.m_Type, reader);
+            }
+            return null;
         }
 
-        public JsonDocument ToJsonDoc(TypeTree m_Type = null)
+        public OrderedDictionary ToType(TypeTree m_Type)
         {
-            var typeDict = ToType(m_Type);
-            try
+            if (m_Type != null)
             {
-                if (typeDict != null)
-                {
-                    return JsonSerializer.SerializeToDocument(typeDict, jsonOptions);
-                }
-
-                if (this is Mesh m_Mesh)
-                {
-                    m_Mesh.ProcessData();
-                }
-
-                return JsonSerializer.SerializeToDocument(this, GetType(), jsonOptions);
+                return TypeTreeHelper.ReadType(m_Type, reader);
             }
-            catch
-            {
-                //ignore
-            }
-
             return null;
         }
 

AssetStudio/Classes/PPtr.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Text.Json.Serialization;
 
 namespace AssetStudio
 {
@@ -7,55 +6,46 @@ namespace AssetStudio
     {
         public int m_FileID;
         public long m_PathID;
-        public string Name => _assetsFile != null && TryGet(out var result) ? result.Name : string.Empty;
 
-        private int _index = -2; //-2 - Prepare, -1 - Missing
-        private SerializedFile _assetsFile;
-        [JsonIgnore]
-        public SerializedFile AssetsFile
-        {
-            get => _assetsFile;
-            set => _assetsFile = value;
-        }
+        private SerializedFile assetsFile;
+        private int index = -2; //-2 - Prepare, -1 - Missing
 
         public PPtr(ObjectReader reader)
         {
             m_FileID = reader.ReadInt32();
             m_PathID = reader.m_Version < SerializedFileFormatVersion.Unknown_14 ? reader.ReadInt32() : reader.ReadInt64();
-            _assetsFile = reader.assetsFile;
+            assetsFile = reader.assetsFile;
         }
 
-        public PPtr() { }
-
         private bool TryGetAssetsFile(out SerializedFile result)
         {
             result = null;
             if (m_FileID == 0)
             {
-                result = _assetsFile;
+                result = assetsFile;
                 return true;
             }
 
-            if (m_FileID > 0 && m_FileID - 1 < _assetsFile.m_Externals.Count)
+            if (m_FileID > 0 && m_FileID - 1 < assetsFile.m_Externals.Count)
             {
-                var assetsManager = _assetsFile.assetsManager;
-                var assetsFileList = assetsManager.AssetsFileList;
+                var assetsManager = assetsFile.assetsManager;
+                var assetsFileList = assetsManager.assetsFileList;
                 var assetsFileIndexCache = assetsManager.assetsFileIndexCache;
 
-                if (_index == -2)
+                if (index == -2)
                 {
-                    var m_External = _assetsFile.m_Externals[m_FileID - 1];
+                    var m_External = assetsFile.m_Externals[m_FileID - 1];
                     var name = m_External.fileName;
-                    if (!assetsFileIndexCache.TryGetValue(name, out _index))
+                    if (!assetsFileIndexCache.TryGetValue(name, out index))
                     {
-                        _index = assetsFileList.FindIndex(x => x.fileName.Equals(name, StringComparison.OrdinalIgnoreCase));
-                        assetsFileIndexCache.Add(name, _index);
+                        index = assetsFileList.FindIndex(x => x.fileName.Equals(name, StringComparison.OrdinalIgnoreCase));
+                        assetsFileIndexCache.Add(name, index);
                     }
                 }
 
-                if (_index >= 0)
+                if (index >= 0)
                 {
-                    result = assetsFileList[_index];
+                    result = assetsFileList[index];
                     return true;
                 }
             }
@@ -63,10 +53,9 @@ namespace AssetStudio
             return false;
         }
 
-        public bool TryGet(out T result, SerializedFile assetsFile = null)
+        public bool TryGet(out T result)
         {
-            _assetsFile = _assetsFile ?? assetsFile;
-            if (!IsNull && TryGetAssetsFile(out var sourceFile))
+            if (TryGetAssetsFile(out var sourceFile))
             {
                 if (sourceFile.ObjectsDic.TryGetValue(m_PathID, out var obj))
                 {
@@ -82,10 +71,9 @@ namespace AssetStudio
             return false;
         }
 
-        public bool TryGet<T2>(out T2 result, SerializedFile assetsFile = null) where T2 : Object
+        public bool TryGet<T2>(out T2 result) where T2 : Object
         {
-            _assetsFile = _assetsFile ?? assetsFile;
-            if (!IsNull && TryGetAssetsFile(out var sourceFile))
+            if (TryGetAssetsFile(out var sourceFile))
             {
                 if (sourceFile.ObjectsDic.TryGetValue(m_PathID, out var obj))
                 {
@@ -104,20 +92,20 @@ namespace AssetStudio
         public void Set(T m_Object)
         {
             var name = m_Object.assetsFile.fileName;
-            if (string.Equals(_assetsFile.fileName, name, StringComparison.OrdinalIgnoreCase))
+            if (string.Equals(assetsFile.fileName, name, StringComparison.OrdinalIgnoreCase))
             {
                 m_FileID = 0;
             }
             else
             {
-                m_FileID = _assetsFile.m_Externals.FindIndex(x => string.Equals(x.fileName, name, StringComparison.OrdinalIgnoreCase));
+                m_FileID = assetsFile.m_Externals.FindIndex(x => string.Equals(x.fileName, name, StringComparison.OrdinalIgnoreCase));
                 if (m_FileID == -1)
                 {
-                    _assetsFile.m_Externals.Add(new FileIdentifier
+                    assetsFile.m_Externals.Add(new FileIdentifier
                     {
                         fileName = m_Object.assetsFile.fileName
                     });
-                    m_FileID = _assetsFile.m_Externals.Count;
+                    m_FileID = assetsFile.m_Externals.Count;
                 }
                 else
                 {
@@ -125,14 +113,14 @@ namespace AssetStudio
                 }
             }
 
-            var assetsManager = _assetsFile.assetsManager;
-            var assetsFileList = assetsManager.AssetsFileList;
+            var assetsManager = assetsFile.assetsManager;
+            var assetsFileList = assetsManager.assetsFileList;
             var assetsFileIndexCache = assetsManager.assetsFileIndexCache;
 
-            if (!assetsFileIndexCache.TryGetValue(name, out _index))
+            if (!assetsFileIndexCache.TryGetValue(name, out index))
             {
-                _index = assetsFileList.FindIndex(x => x.fileName.Equals(name, StringComparison.OrdinalIgnoreCase));
-                assetsFileIndexCache.Add(name, _index);
+                index = assetsFileList.FindIndex(x => x.fileName.Equals(name, StringComparison.OrdinalIgnoreCase));
+                assetsFileIndexCache.Add(name, index);
             }
 
             m_PathID = m_Object.m_PathID;

AssetStudio/Classes/PlayerSettings.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class PlayerSettings : Object
     {
@@ -7,40 +12,37 @@
 
         public PlayerSettings(ObjectReader reader) : base(reader)
         {
-            if (version >= (3, 0))
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4.0 nad up
             {
-                if (version >= (5, 4)) //5.4.0 and up
-                {
-                    var productGUID = reader.ReadBytes(16);
-                }
+                var productGUID = reader.ReadBytes(16);
+            }
 
-                var AndroidProfiler = reader.ReadBoolean();
-                //bool AndroidFilterTouchesWhenObscured 2017.2 and up
-                //bool AndroidEnableSustainedPerformanceMode 2018 and up
-                reader.AlignStream();
-                int defaultScreenOrientation = reader.ReadInt32();
-                int targetDevice = reader.ReadInt32();
-                if (version < (5, 3)) //5.3 down
+            var AndroidProfiler = reader.ReadBoolean();
+            //bool AndroidFilterTouchesWhenObscured 2017.2 and up
+            //bool AndroidEnableSustainedPerformanceMode 2018 and up
+            reader.AlignStream();
+            int defaultScreenOrientation = reader.ReadInt32();
+            int targetDevice = reader.ReadInt32();
+            if (version[0] < 5 || (version[0] == 5 && version[1] < 3)) //5.3 down
+            {
+                if (version[0] < 5) //5.0 down
                 {
-                    if (version < 5) //5.0 down
+                    int targetPlatform = reader.ReadInt32(); //4.0 and up targetGlesGraphics
+                    if (version[0] > 4 || (version[0] == 4 && version[1] >= 6)) //4.6 and up
                     {
-                        int targetPlatform = reader.ReadInt32(); //4.0 and up targetGlesGraphics
-                        if (version >= (4, 6)) //4.6 and up
-                        {
-                            var targetIOSGraphics = reader.ReadInt32();
-                        }
+                        var targetIOSGraphics = reader.ReadInt32();
                     }
-                    int targetResolution = reader.ReadInt32();
-                }
-                else
-                {
-                    var useOnDemandResources = reader.ReadBoolean();
-                    reader.AlignStream();
-                }
-                if (version >= (3, 5)) //3.5 and up
-                {
-                    var accelerometerFrequency = reader.ReadInt32();
                 }
+                int targetResolution = reader.ReadInt32();
+            }
+            else
+            {
+                var useOnDemandResources = reader.ReadBoolean();
+                reader.AlignStream();
+            }
+            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 and up
+            {
+                var accelerometerFrequency = reader.ReadInt32();
             }
             companyName = reader.ReadAlignedString();
             productName = reader.ReadAlignedString();

AssetStudio/Classes/PreloadData.cs

@@ -1,18 +1,16 @@
-using System.Collections.Generic;
-
-namespace AssetStudio
+namespace AssetStudio
 {
     public sealed class PreloadData : NamedObject
     {
-        public List<PPtr<Object>> m_Assets;
+        public PPtr<Object>[] m_Assets;
 
         public PreloadData(ObjectReader reader) : base(reader)
         {
             var m_PreloadTableSize = reader.ReadInt32();
-            m_Assets = new List<PPtr<Object>>();
+            m_Assets = new PPtr<Object>[m_PreloadTableSize];
             for (var i = 0; i < m_PreloadTableSize; i++)
             {
-                m_Assets.Add(new PPtr<Object>(reader));
+                m_Assets[i] = new PPtr<Object>(reader);
             }
 
             /*

AssetStudio/Classes/RectTransform.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class RectTransform : Transform
     {

AssetStudio/Classes/Renderer.cs

@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
@@ -16,13 +19,13 @@ namespace AssetStudio
 
     public abstract class Renderer : Component
     {
-        public List<PPtr<Material>> m_Materials;
+        public PPtr<Material>[] m_Materials;
         public StaticBatchInfo m_StaticBatchInfo;
         public uint[] m_SubsetIndices;
 
         protected Renderer(ObjectReader reader) : base(reader)
         {
-            if (version < 5) //5.0 down
+            if (version[0] < 5) //5.0 down
             {
                 var m_Enabled = reader.ReadBoolean();
                 var m_CastShadows = reader.ReadBoolean();
@@ -31,53 +34,30 @@ namespace AssetStudio
             }
             else //5.0 and up
             {
-                if (version >= (5, 4)) //5.4 and up
+                if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
                 {
                     var m_Enabled = reader.ReadBoolean();
                     var m_CastShadows = reader.ReadByte();
                     var m_ReceiveShadows = reader.ReadByte();
-                    if (version >= (2017, 2)) //2017.2 and up
+                    if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
                     {
                         var m_DynamicOccludee = reader.ReadByte();
                     }
-                    if (version >= 2021) //2021.1 and up
+                    if (version[0] >= 2021) //2021.1 and up
                     {
                         var m_StaticShadowCaster = reader.ReadByte();
                     }
                     var m_MotionVectors = reader.ReadByte();
                     var m_LightProbeUsage = reader.ReadByte();
                     var m_ReflectionProbeUsage = reader.ReadByte();
-                    if (version >= (2019, 3)) //2019.3 and up
+                    if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
                     {
                         var m_RayTracingMode = reader.ReadByte();
                     }
-                    if (version >= 2020) //2020.1 and up
+                    if (version[0] >= 2020) //2020.1 and up
                     {
                         var m_RayTraceProcedural = reader.ReadByte();
                     }
-                    if (version.IsTuanjie) //2022.3.2t3(1.0.0) and up
-                    {
-                        var m_virtualGeometry = reader.ReadByte();
-                        var m_virtualGeometryShadow = reader.ReadByte();
-                        if (version > (2022, 3, 48) || (version == (2022, 3, 48) && version.Build >= 3)) //2022.3.48t3(1.4.0) and up
-                        {
-                            reader.AlignStream();
-                            var m_ShadingRate = reader.ReadByte();
-                            if (version >= (2022, 3, 61)) //2022.3.61t1(1.6.0) and up
-                            {
-                                var m_ForceDisableGRD = reader.ReadByte();
-                            }
-                        }
-                    }
-                    if (version >= (2023, 2)) //2023.2 and up
-                    {
-                        var m_RayTracingAccelStructBuildFlagsOverride = reader.ReadByte();
-                        var m_RayTracingAccelStructBuildFlags = reader.ReadByte();
-                    }
-                    if (version >= (2023, 3)) //2023.3 and up
-                    {
-                        var m_SmallMeshCulling = reader.ReadByte();
-                    }
                     reader.AlignStream();
                 }
                 else
@@ -89,12 +69,12 @@ namespace AssetStudio
                     reader.AlignStream();
                 }
 
-                if (version >= 2018) //2018 and up
+                if (version[0] >= 2018) //2018 and up
                 {
                     var m_RenderingLayerMask = reader.ReadUInt32();
                 }
 
-                if (version >= (2018, 3)) //2018.3 and up
+                if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 3)) //2018.3 and up
                 {
                     var m_RendererPriority = reader.ReadInt32();
                 }
@@ -103,30 +83,30 @@ namespace AssetStudio
                 var m_LightmapIndexDynamic = reader.ReadUInt16();
             }
 
-            if (version >= 3) //3.0 and up
+            if (version[0] >= 3) //3.0 and up
             {
                 var m_LightmapTilingOffset = reader.ReadVector4();
             }
 
-            if (version >= 5) //5.0 and up
+            if (version[0] >= 5) //5.0 and up
             {
                 var m_LightmapTilingOffsetDynamic = reader.ReadVector4();
             }
 
             var m_MaterialsSize = reader.ReadInt32();
-            m_Materials = new List<PPtr<Material>>();
-            for (var i = 0; i < m_MaterialsSize; i++)
+            m_Materials = new PPtr<Material>[m_MaterialsSize];
+            for (int i = 0; i < m_MaterialsSize; i++)
             {
-                m_Materials.Add(new PPtr<Material>(reader));
+                m_Materials[i] = new PPtr<Material>(reader);
             }
 
-            if (version < 3) //3.0 down
+            if (version[0] < 3) //3.0 down
             {
                 var m_LightmapTilingOffset = reader.ReadVector4();
             }
             else //3.0 and up
             {
-                if (version >= (5, 5)) //5.5 and up
+                if (version[0] > 5 || (version[0] == 5 && version[1] >= 5)) //5.5 and up
                 {
                     m_StaticBatchInfo = new StaticBatchInfo(reader);
                 }
@@ -138,17 +118,17 @@ namespace AssetStudio
                 var m_StaticBatchRoot = new PPtr<Transform>(reader);
             }
 
-            if (version >= (5, 4)) //5.4 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 4)) //5.4 and up
             {
                 var m_ProbeAnchor = new PPtr<Transform>(reader);
                 var m_LightProbeVolumeOverride = new PPtr<GameObject>(reader);
             }
-            else if (version >= (3, 5)) //3.5 - 5.3
+            else if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5 - 5.3
             {
                 var m_UseLightProbes = reader.ReadBoolean();
                 reader.AlignStream();
 
-                if (version >= 5) //5.0 and up
+                if (version[0] >= 5)//5.0 and up
                 {
                     var m_ReflectionProbeUsage = reader.ReadInt32();
                 }
@@ -156,22 +136,18 @@ namespace AssetStudio
                 var m_LightProbeAnchor = new PPtr<Transform>(reader); //5.0 and up m_ProbeAnchor
             }
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
-                if (version == (4, 3)) //4.3
+                if (version[0] == 4 && version[1] == 3) //4.3
                 {
                     var m_SortingLayer = reader.ReadInt16();
                 }
                 else
                 {
-                    var m_SortingLayerID = reader.ReadInt32();
-                }
-
-                if (version > (5, 6) || (version == (5, 6) && version.Build >= 3)) //5.6.0f3 and up
-                {
-                    var m_SortingLayer = reader.ReadInt16();
+                    var m_SortingLayerID = reader.ReadUInt32();
                 }
 
+                //SInt16 m_SortingLayer 5.6 and up
                 var m_SortingOrder = reader.ReadInt16();
                 reader.AlignStream();
             }

AssetStudio/Classes/ResourceManager.cs

@@ -4,15 +4,15 @@ namespace AssetStudio
 {
     public class ResourceManager : Object
     {
-        public List<KeyValuePair<string, PPtr<Object>>> m_Container;
+        public KeyValuePair<string, PPtr<Object>>[] m_Container;
 
         public ResourceManager(ObjectReader reader) : base(reader)
         {
             var m_ContainerSize = reader.ReadInt32();
-            m_Container = new List<KeyValuePair<string, PPtr<Object>>>();
-            for (var i = 0; i < m_ContainerSize; i++)
+            m_Container = new KeyValuePair<string, PPtr<Object>>[m_ContainerSize];
+            for (int i = 0; i < m_ContainerSize; i++)
             {
-                m_Container.Add(new KeyValuePair<string, PPtr<Object>>(reader.ReadAlignedString(), new PPtr<Object>(reader)));
+                m_Container[i] = new KeyValuePair<string, PPtr<Object>>(reader.ReadAlignedString(), new PPtr<Object>(reader));
             }
         }
     }

AssetStudio/Classes/RuntimeAnimatorController.cs

@@ -1,4 +1,9 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public abstract class RuntimeAnimatorController : NamedObject
     {

AssetStudio/Classes/Shader.cs

@@ -17,8 +17,8 @@ namespace AssetStudio
 
     public class StructParameter
     {
-        public List<MatrixParameter> m_MatrixParams;
-        public List<VectorParameter> m_VectorParams;
+        public MatrixParameter[] m_MatrixParams;
+        public VectorParameter[] m_VectorParams;
 
         public StructParameter(BinaryReader reader)
         {
@@ -28,17 +28,17 @@ namespace AssetStudio
             var m_StructSize = reader.ReadInt32();
 
             int numVectorParams = reader.ReadInt32();
-            m_VectorParams = new List<VectorParameter>();
-            for (var i = 0; i < numVectorParams; i++)
+            m_VectorParams = new VectorParameter[numVectorParams];
+            for (int i = 0; i < numVectorParams; i++)
             {
-                m_VectorParams.Add(new VectorParameter(reader));
+                m_VectorParams[i] = new VectorParameter(reader);
             }
 
             int numMatrixParams = reader.ReadInt32();
-            m_MatrixParams = new List<MatrixParameter>();
-            for (var i = 0; i < numMatrixParams; i++)
+            m_MatrixParams = new MatrixParameter[numMatrixParams];
+            for (int i = 0; i < numMatrixParams; i++)
             {
-                m_MatrixParams.Add(new MatrixParameter(reader));
+                m_MatrixParams[i] = new MatrixParameter(reader);
             }
         }
     }
@@ -112,15 +112,15 @@ namespace AssetStudio
 
     public class SerializedProperties
     {
-        public List<SerializedProperty> m_Props;
+        public SerializedProperty[] m_Props;
 
         public SerializedProperties(BinaryReader reader)
         {
             int numProps = reader.ReadInt32();
-            m_Props = new List<SerializedProperty>();
-            for (var i = 0; i < numProps; i++)
+            m_Props = new SerializedProperty[numProps];
+            for (int i = 0; i < numProps; i++)
             {
-                m_Props.Add(new SerializedProperty(reader));
+                m_Props[i] = new SerializedProperty(reader);
             }
         }
     }
@@ -237,20 +237,20 @@ namespace AssetStudio
 
             m_Name = reader.ReadAlignedString();
             rtBlend = new SerializedShaderRTBlendState[8];
-            for (var i = 0; i < 8; i++)
+            for (int i = 0; i < 8; i++)
             {
                 rtBlend[i] = new SerializedShaderRTBlendState(reader);
             }
             rtSeparateBlend = reader.ReadBoolean();
             reader.AlignStream();
-            if (version >= (2017, 2)) //2017.2 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
             {
                 zClip = new SerializedShaderFloatValue(reader);
             }
             zTest = new SerializedShaderFloatValue(reader);
             zWrite = new SerializedShaderFloatValue(reader);
             culling = new SerializedShaderFloatValue(reader);
-            if (version >= 2020) //2020.1 and up
+            if (version[0] >= 2020) //2020.1 and up
             {
                 conservative = new SerializedShaderFloatValue(reader);
             }
@@ -290,16 +290,16 @@ namespace AssetStudio
 
     public class ParserBindChannels
     {
-        public List<ShaderBindChannel> m_Channels;
+        public ShaderBindChannel[] m_Channels;
         public uint m_SourceMap;
 
         public ParserBindChannels(BinaryReader reader)
         {
             int numChannels = reader.ReadInt32();
-            m_Channels = new List<ShaderBindChannel>();
-            for (var i = 0; i < numChannels; i++)
+            m_Channels = new ShaderBindChannel[numChannels];
+            for (int i = 0; i < numChannels; i++)
             {
-                m_Channels.Add(new ShaderBindChannel(reader));
+                m_Channels[i] = new ShaderBindChannel(reader);
             }
             reader.AlignStream();
 
@@ -359,7 +359,7 @@ namespace AssetStudio
             m_NameIndex = reader.ReadInt32();
             m_Index = reader.ReadInt32();
             m_SamplerIndex = reader.ReadInt32();
-            if (version >= (2017, 3)) //2017.3 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
             {
                 var m_MultiSampled = reader.ReadBoolean();
             }
@@ -380,7 +380,7 @@ namespace AssetStudio
 
             m_NameIndex = reader.ReadInt32();
             m_Index = reader.ReadInt32();
-            if (version >= 2020) //2020.1 and up
+            if (version[0] >= 2020) //2020.1 and up
             {
                 m_ArraySize = reader.ReadInt32();
             }
@@ -390,9 +390,9 @@ namespace AssetStudio
     public class ConstantBuffer
     {
         public int m_NameIndex;
-        public List<MatrixParameter> m_MatrixParams;
-        public List<VectorParameter> m_VectorParams;
-        public List<StructParameter> m_StructParams;
+        public MatrixParameter[] m_MatrixParams;
+        public VectorParameter[] m_VectorParams;
+        public StructParameter[] m_StructParams;
         public int m_Size;
         public bool m_IsPartialCB;
 
@@ -403,31 +403,34 @@ namespace AssetStudio
             m_NameIndex = reader.ReadInt32();
 
             int numMatrixParams = reader.ReadInt32();
-            m_MatrixParams = new List<MatrixParameter>();
-            for (var i = 0; i < numMatrixParams; i++)
+            m_MatrixParams = new MatrixParameter[numMatrixParams];
+            for (int i = 0; i < numMatrixParams; i++)
             {
-                m_MatrixParams.Add(new MatrixParameter(reader));
+                m_MatrixParams[i] = new MatrixParameter(reader);
             }
 
             int numVectorParams = reader.ReadInt32();
-            m_VectorParams = new List<VectorParameter>();
-            for (var i = 0; i < numVectorParams; i++)
+            m_VectorParams = new VectorParameter[numVectorParams];
+            for (int i = 0; i < numVectorParams; i++)
             {
-                m_VectorParams.Add(new VectorParameter(reader));
+                m_VectorParams[i] = new VectorParameter(reader);
             }
-            if (version >= (2017, 3)) //2017.3 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
             {
                 int numStructParams = reader.ReadInt32();
-                m_StructParams = new List<StructParameter>();
-                for (var i = 0; i < numStructParams; i++)
+                m_StructParams = new StructParameter[numStructParams];
+                for (int i = 0; i < numStructParams; i++)
                 {
-                    m_StructParams.Add(new StructParameter(reader));
+                    m_StructParams[i] = new StructParameter(reader);
                 }
             }
             m_Size = reader.ReadInt32();
 
-            if (version.IsInRange((2020, 3, 2), 2021) //2020.3.2f1 and up
-                || version >= (2021, 1, 4)) //2021.1.4f1 and up
+            if ((version[0] == 2020 && version[1] > 3) ||
+               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
+               (version[0] > 2021) ||
+               (version[0] == 2021 && version[1] > 1) ||
+               (version[0] == 2021 && version[1] == 1 && version[2] >= 4)) //2021.1.4f1 and up
             {
                 m_IsPartialCB = reader.ReadBoolean();
                 reader.AlignStream();
@@ -488,74 +491,71 @@ namespace AssetStudio
 
     public class SerializedProgramParameters
     {
-        public List<VectorParameter> m_VectorParams;
-        public List<MatrixParameter> m_MatrixParams;
-        public List<TextureParameter> m_TextureParams;
-        public List<BufferBinding> m_BufferParams;
-        public List<ConstantBuffer> m_ConstantBuffers;
-        public List<BufferBinding> m_ConstantBufferBindings;
-        public List<UAVParameter> m_UAVParams;
-        public List<SamplerParameter> m_Samplers;
+        public VectorParameter[] m_VectorParams;
+        public MatrixParameter[] m_MatrixParams;
+        public TextureParameter[] m_TextureParams;
+        public BufferBinding[] m_BufferParams;
+        public ConstantBuffer[] m_ConstantBuffers;
+        public BufferBinding[] m_ConstantBufferBindings;
+        public UAVParameter[] m_UAVParams;
+        public SamplerParameter[] m_Samplers;
 
         public SerializedProgramParameters(ObjectReader reader)
         {
             int numVectorParams = reader.ReadInt32();
-            m_VectorParams = new List<VectorParameter>();
-            for (var i = 0; i < numVectorParams; i++)
+            m_VectorParams = new VectorParameter[numVectorParams];
+            for (int i = 0; i < numVectorParams; i++)
             {
-                m_VectorParams.Add(new VectorParameter(reader));
+                m_VectorParams[i] = new VectorParameter(reader);
             }
 
             int numMatrixParams = reader.ReadInt32();
-            m_MatrixParams = new List<MatrixParameter>();
-            for (var i = 0; i < numMatrixParams; i++)
+            m_MatrixParams = new MatrixParameter[numMatrixParams];
+            for (int i = 0; i < numMatrixParams; i++)
             {
-                m_MatrixParams.Add(new MatrixParameter(reader));
+                m_MatrixParams[i] = new MatrixParameter(reader);
             }
 
             int numTextureParams = reader.ReadInt32();
-            m_TextureParams = new List<TextureParameter>();
-            for (var i = 0; i < numTextureParams; i++)
+            m_TextureParams = new TextureParameter[numTextureParams];
+            for (int i = 0; i < numTextureParams; i++)
             {
-                m_TextureParams.Add(new TextureParameter(reader));
+                m_TextureParams[i] = new TextureParameter(reader);
             }
 
             int numBufferParams = reader.ReadInt32();
-            m_BufferParams = new List<BufferBinding>();
-            for (var i = 0; i < numBufferParams; i++)
+            m_BufferParams = new BufferBinding[numBufferParams];
+            for (int i = 0; i < numBufferParams; i++)
             {
-                m_BufferParams.Add(new BufferBinding(reader));
+                m_BufferParams[i] = new BufferBinding(reader);
             }
 
             int numConstantBuffers = reader.ReadInt32();
-            m_ConstantBuffers = new List<ConstantBuffer>();
-            for (var i = 0; i < numConstantBuffers; i++)
+            m_ConstantBuffers = new ConstantBuffer[numConstantBuffers];
+            for (int i = 0; i < numConstantBuffers; i++)
             {
-                m_ConstantBuffers.Add(new ConstantBuffer(reader));
+                m_ConstantBuffers[i] = new ConstantBuffer(reader);
             }
 
             int numConstantBufferBindings = reader.ReadInt32();
-            m_ConstantBufferBindings = new List<BufferBinding>();
-            for (var i = 0; i < numConstantBufferBindings; i++)
+            m_ConstantBufferBindings = new BufferBinding[numConstantBufferBindings];
+            for (int i = 0; i < numConstantBufferBindings; i++)
             {
-                m_ConstantBufferBindings.Add(new BufferBinding(reader));
+                m_ConstantBufferBindings[i] = new BufferBinding(reader);
             }
 
             int numUAVParams = reader.ReadInt32();
-            m_UAVParams = new List<UAVParameter>();
-            for (var i = 0; i < numUAVParams; i++)
+            m_UAVParams = new UAVParameter[numUAVParams];
+            for (int i = 0; i < numUAVParams; i++)
             {
-                m_UAVParams.Add(new UAVParameter(reader));
+                m_UAVParams[i] = new UAVParameter(reader);
             }
 
-            if (reader.version >= 2017) //2017 and up
+            int numSamplers = reader.ReadInt32();
+            m_Samplers = new SamplerParameter[numSamplers];
+            for (int i = 0; i < numSamplers; i++)
             {
-                int numSamplers = reader.ReadInt32();
-                m_Samplers = new List<SamplerParameter>();
-                for (var i = 0; i < numSamplers; i++)
-                {
-                    m_Samplers.Add(new SamplerParameter(reader));
-                }
+                m_Samplers[i] = new SamplerParameter(reader);
             }
         }
     }
@@ -567,7 +567,15 @@ namespace AssetStudio
         public ushort[] m_KeywordIndices;
         public sbyte m_ShaderHardwareTier;
         public ShaderGpuProgramType m_GpuProgramType;
-        public SerializedProgramParameters m_Parameters; // nested since 2020.3.2f1 and up; 2021.1.1f1 and up
+        public SerializedProgramParameters m_Parameters;
+        public VectorParameter[] m_VectorParams;
+        public MatrixParameter[] m_MatrixParams;
+        public TextureParameter[] m_TextureParams;
+        public BufferBinding[] m_BufferParams;
+        public ConstantBuffer[] m_ConstantBuffers;
+        public BufferBinding[] m_ConstantBufferBindings;
+        public UAVParameter[] m_UAVParams;
+        public SamplerParameter[] m_Samplers;
 
         public SerializedSubProgram(ObjectReader reader)
         {
@@ -576,7 +584,7 @@ namespace AssetStudio
             m_BlobIndex = reader.ReadUInt32();
             m_Channels = new ParserBindChannels(reader);
 
-            if (version.IsInRange(2019, (2021, 2))) //2019 ~2021.1
+            if ((version[0] >= 2019 && version[0] < 2021) || (version[0] == 2021 && version[1] < 2)) //2019 ~2021.1
             {
                 var m_GlobalKeywordIndices = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -586,7 +594,7 @@ namespace AssetStudio
             else
             {
                 m_KeywordIndices = reader.ReadUInt16Array();
-                if (version >= 2017) //2017 and up
+                if (version[0] >= 2017) //2017 and up
                 {
                     reader.AlignStream();
                 }
@@ -596,11 +604,79 @@ namespace AssetStudio
             m_GpuProgramType = (ShaderGpuProgramType)reader.ReadSByte();
             reader.AlignStream();
 
-            m_Parameters = new SerializedProgramParameters(reader);
-
-            if (version >= (2017, 2)) //2017.2 and up
+            if ((version[0] == 2020 && version[1] > 3) ||
+               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
+               (version[0] > 2021) ||
+               (version[0] == 2021 && version[1] > 1) ||
+               (version[0] == 2021 && version[1] == 1 && version[2] >= 1)) //2021.1.1f1 and up
             {
-                if (version >= 2021) //2021.1 and up
+                m_Parameters = new SerializedProgramParameters(reader);
+            }
+            else
+            {
+                int numVectorParams = reader.ReadInt32();
+                m_VectorParams = new VectorParameter[numVectorParams];
+                for (int i = 0; i < numVectorParams; i++)
+                {
+                    m_VectorParams[i] = new VectorParameter(reader);
+                }
+
+                int numMatrixParams = reader.ReadInt32();
+                m_MatrixParams = new MatrixParameter[numMatrixParams];
+                for (int i = 0; i < numMatrixParams; i++)
+                {
+                    m_MatrixParams[i] = new MatrixParameter(reader);
+                }
+
+                int numTextureParams = reader.ReadInt32();
+                m_TextureParams = new TextureParameter[numTextureParams];
+                for (int i = 0; i < numTextureParams; i++)
+                {
+                    m_TextureParams[i] = new TextureParameter(reader);
+                }
+
+                int numBufferParams = reader.ReadInt32();
+                m_BufferParams = new BufferBinding[numBufferParams];
+                for (int i = 0; i < numBufferParams; i++)
+                {
+                    m_BufferParams[i] = new BufferBinding(reader);
+                }
+
+                int numConstantBuffers = reader.ReadInt32();
+                m_ConstantBuffers = new ConstantBuffer[numConstantBuffers];
+                for (int i = 0; i < numConstantBuffers; i++)
+                {
+                    m_ConstantBuffers[i] = new ConstantBuffer(reader);
+                }
+
+                int numConstantBufferBindings = reader.ReadInt32();
+                m_ConstantBufferBindings = new BufferBinding[numConstantBufferBindings];
+                for (int i = 0; i < numConstantBufferBindings; i++)
+                {
+                    m_ConstantBufferBindings[i] = new BufferBinding(reader);
+                }
+
+                int numUAVParams = reader.ReadInt32();
+                m_UAVParams = new UAVParameter[numUAVParams];
+                for (int i = 0; i < numUAVParams; i++)
+                {
+                    m_UAVParams[i] = new UAVParameter(reader);
+                }
+
+                if (version[0] >= 2017) //2017 and up
+                {
+                    int numSamplers = reader.ReadInt32();
+                    m_Samplers = new SamplerParameter[numSamplers];
+                    for (int i = 0; i < numSamplers; i++)
+                    {
+                        m_Samplers[i] = new SamplerParameter(reader);
+                    }
+                }
+            }
+
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
+            {
+                if (version[0] >= 2021) //2021.1 and up
                 {
                     var m_ShaderRequirements = reader.ReadInt64();
                 }
@@ -614,7 +690,7 @@ namespace AssetStudio
 
     public class SerializedProgram
     {
-        public List<SerializedSubProgram> m_SubPrograms;
+        public SerializedSubProgram[] m_SubPrograms;
         public SerializedProgramParameters m_CommonParameters;
         public ushort[] m_SerializedKeywordStateMask;
 
@@ -623,19 +699,22 @@ namespace AssetStudio
             var version = reader.version;
 
             int numSubPrograms = reader.ReadInt32();
-            m_SubPrograms = new List<SerializedSubProgram>();
-            for (var i = 0; i < numSubPrograms; i++)
+            m_SubPrograms = new SerializedSubProgram[numSubPrograms];
+            for (int i = 0; i < numSubPrograms; i++)
             {
-                m_SubPrograms.Add(new SerializedSubProgram(reader));
+                m_SubPrograms[i] = new SerializedSubProgram(reader);
             }
 
-            if (version.IsInRange((2020, 3, 2), 2021) //2020.3.2f1 and up
-                || version >= (2021, 1, 1)) //2021.1.1f1 and up
+            if ((version[0] == 2020 && version[1] > 3) ||
+               (version[0] == 2020 && version[1] == 3 && version[2] >= 2) || //2020.3.2f1 and up
+               (version[0] > 2021) ||
+               (version[0] == 2021 && version[1] > 1) ||
+               (version[0] == 2021 && version[1] == 1 && version[2] >= 1)) //2021.1.1f1 and up
             {
                 m_CommonParameters = new SerializedProgramParameters(reader);
             }
 
-            if (version >= (2022, 1)) //2022.1 and up
+            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 1)) //2022.1 and up
             {
                 m_SerializedKeywordStateMask = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -652,11 +731,11 @@ namespace AssetStudio
 
     public class SerializedPass
     {
-        public List<Hash128> m_EditorDataHash;
+        public Hash128[] m_EditorDataHash;
         public byte[] m_Platforms;
         public ushort[] m_LocalKeywordMask;
         public ushort[] m_GlobalKeywordMask;
-        public List<KeyValuePair<string, int>> m_NameIndices;
+        public KeyValuePair<string, int>[] m_NameIndices;
         public PassType m_Type;
         public SerializedShaderState m_State;
         public uint m_ProgramMask;
@@ -677,18 +756,18 @@ namespace AssetStudio
         {
             var version = reader.version;
 
-            if (version >= (2020, 2)) //2020.2 and up
+            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
             {
                 int numEditorDataHash = reader.ReadInt32();
-                m_EditorDataHash = new List<Hash128>();
-                for (var i = 0; i < numEditorDataHash; i++)
+                m_EditorDataHash = new Hash128[numEditorDataHash];
+                for (int i = 0; i < numEditorDataHash; i++)
                 {
-                    m_EditorDataHash.Add(new Hash128(reader));
+                    m_EditorDataHash[i] = new Hash128(reader);
                 }
                 reader.AlignStream();
                 m_Platforms = reader.ReadUInt8Array();
                 reader.AlignStream();
-                if (version <= (2021, 1)) //2021.1 and down
+                if (version[0] < 2021 || (version[0] == 2021 && version[1] < 2)) //2021.1 and down
                 {
                     m_LocalKeywordMask = reader.ReadUInt16Array();
                     reader.AlignStream();
@@ -698,10 +777,10 @@ namespace AssetStudio
             }
 
             int numIndices = reader.ReadInt32();
-            m_NameIndices = new List<KeyValuePair<string, int>>();
-            for (var i = 0; i < numIndices; i++)
+            m_NameIndices = new KeyValuePair<string, int>[numIndices];
+            for (int i = 0; i < numIndices; i++)
             {
-                m_NameIndices.Add(new KeyValuePair<string, int>(reader.ReadAlignedString(), reader.ReadInt32()));
+                m_NameIndices[i] = new KeyValuePair<string, int>(reader.ReadAlignedString(), reader.ReadInt32());
             }
 
             m_Type = (PassType)reader.ReadInt32();
@@ -712,12 +791,12 @@ namespace AssetStudio
             progGeometry = new SerializedProgram(reader);
             progHull = new SerializedProgram(reader);
             progDomain = new SerializedProgram(reader);
-            if (version >= (2019, 3)) //2019.3 and up
+            if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
             {
                 progRayTracing = new SerializedProgram(reader);
             }
             m_HasInstancingVariant = reader.ReadBoolean();
-            if (version >= 2018) //2018 and up
+            if (version[0] >= 2018) //2018 and up
             {
                 var m_HasProceduralInstancingVariant = reader.ReadBoolean();
             }
@@ -726,7 +805,7 @@ namespace AssetStudio
             m_Name = reader.ReadAlignedString();
             m_TextureName = reader.ReadAlignedString();
             m_Tags = new SerializedTagMap(reader);
-            if (version == 2021 && version.Minor >= 2) //2021.2 ~2021.x
+            if (version[0] == 2021 && version[1] >= 2) //2021.2 ~2021.x
             {
                 m_SerializedKeywordStateMask = reader.ReadUInt16Array();
                 reader.AlignStream();
@@ -736,32 +815,32 @@ namespace AssetStudio
 
     public class SerializedTagMap
     {
-        public List<KeyValuePair<string, string>> tags;
+        public KeyValuePair<string, string>[] tags;
 
         public SerializedTagMap(BinaryReader reader)
         {
             int numTags = reader.ReadInt32();
-            tags = new List<KeyValuePair<string, string>>();
-            for (var i = 0; i < numTags; i++)
+            tags = new KeyValuePair<string, string>[numTags];
+            for (int i = 0; i < numTags; i++)
             {
-                tags.Add(new KeyValuePair<string, string>(reader.ReadAlignedString(), reader.ReadAlignedString()));
+                tags[i] = new KeyValuePair<string, string>(reader.ReadAlignedString(), reader.ReadAlignedString());
             }
         }
     }
 
     public class SerializedSubShader
     {
-        public List<SerializedPass> m_Passes;
+        public SerializedPass[] m_Passes;
         public SerializedTagMap m_Tags;
         public int m_LOD;
 
         public SerializedSubShader(ObjectReader reader)
         {
             int numPasses = reader.ReadInt32();
-            m_Passes = new List<SerializedPass>();
-            for (var i = 0; i < numPasses; i++)
+            m_Passes = new SerializedPass[numPasses];
+            for (int i = 0; i < numPasses; i++)
             {
-                m_Passes.Add(new SerializedPass(reader));
+                m_Passes[i] = new SerializedPass(reader);
             }
 
             m_Tags = new SerializedTagMap(reader);
@@ -796,14 +875,14 @@ namespace AssetStudio
     public class SerializedShader
     {
         public SerializedProperties m_PropInfo;
-        public List<SerializedSubShader> m_SubShaders;
+        public SerializedSubShader[] m_SubShaders;
         public string[] m_KeywordNames;
         public byte[] m_KeywordFlags;
         public string m_Name;
         public string m_CustomEditorName;
         public string m_FallbackName;
-        public List<SerializedShaderDependency> m_Dependencies;
-        public List<SerializedCustomEditorForRenderPipeline> m_CustomEditorForRenderPipelines;
+        public SerializedShaderDependency[] m_Dependencies;
+        public SerializedCustomEditorForRenderPipeline[] m_CustomEditorForRenderPipelines;
         public bool m_DisableNoSubshadersMessage;
 
         public SerializedShader(ObjectReader reader)
@@ -813,13 +892,13 @@ namespace AssetStudio
             m_PropInfo = new SerializedProperties(reader);
 
             int numSubShaders = reader.ReadInt32();
-            m_SubShaders = new List<SerializedSubShader>();
-            for (var i = 0; i < numSubShaders; i++)
+            m_SubShaders = new SerializedSubShader[numSubShaders];
+            for (int i = 0; i < numSubShaders; i++)
             {
-                m_SubShaders.Add(new SerializedSubShader(reader));
+                m_SubShaders[i] = new SerializedSubShader(reader);
             }
 
-            if (version >= (2021, 2)) //2021.2 and up
+            if (version[0] > 2021 || (version[0] == 2021 && version[1] >= 2)) //2021.2 and up
             {
                 m_KeywordNames = reader.ReadStringArray();
                 m_KeywordFlags = reader.ReadUInt8Array();
@@ -831,19 +910,19 @@ namespace AssetStudio
             m_FallbackName = reader.ReadAlignedString();
 
             int numDependencies = reader.ReadInt32();
-            m_Dependencies = new List<SerializedShaderDependency>();
-            for (var i = 0; i < numDependencies; i++)
+            m_Dependencies = new SerializedShaderDependency[numDependencies];
+            for (int i = 0; i < numDependencies; i++)
             {
-                m_Dependencies.Add(new SerializedShaderDependency(reader));
+                m_Dependencies[i] = new SerializedShaderDependency(reader);
             }
 
-            if (version >= 2021) //2021.1 and up
+            if (version[0] >= 2021) //2021.1 and up
             {
                 int m_CustomEditorForRenderPipelinesSize = reader.ReadInt32();
-                m_CustomEditorForRenderPipelines = new List<SerializedCustomEditorForRenderPipeline>();
-                for (var i = 0; i < m_CustomEditorForRenderPipelinesSize; i++)
+                m_CustomEditorForRenderPipelines = new SerializedCustomEditorForRenderPipeline[m_CustomEditorForRenderPipelinesSize];
+                for (int i = 0; i < m_CustomEditorForRenderPipelinesSize; i++)
                 {
-                    m_CustomEditorForRenderPipelines.Add(new SerializedCustomEditorForRenderPipeline(reader));
+                    m_CustomEditorForRenderPipelines[i] = new SerializedCustomEditorForRenderPipeline(reader);
                 }
             }
 
@@ -898,11 +977,11 @@ namespace AssetStudio
 
         public Shader(ObjectReader reader) : base(reader)
         {
-            if (version >= (5, 5)) //5.5 and up
+            if (version[0] == 5 && version[1] >= 5 || version[0] > 5) //5.5 and up
             {
                 m_ParsedForm = new SerializedShader(reader);
                 platforms = reader.ReadUInt32Array().Select(x => (ShaderCompilerPlatform)x).ToArray();
-                if (version >= (2019, 3)) //2019.3 and up
+                if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
                 {
                     offsets = reader.ReadUInt32ArrayArray();
                     compressedLengths = reader.ReadUInt32ArrayArray();
@@ -918,18 +997,18 @@ namespace AssetStudio
                 reader.AlignStream();
 
                 var m_DependenciesCount = reader.ReadInt32();
-                for (var i = 0; i < m_DependenciesCount; i++)
+                for (int i = 0; i < m_DependenciesCount; i++)
                 {
-                    var m_Dependencies = new PPtr<Shader>(reader);
+                    new PPtr<Shader>(reader);
                 }
 
-                if (version >= 2018)
+                if (version[0] >= 2018)
                 {
                     var m_NonModifiableTexturesCount = reader.ReadInt32();
-                    for (var i = 0; i < m_NonModifiableTexturesCount; i++)
+                    for (int i = 0; i < m_NonModifiableTexturesCount; i++)
                     {
                         var first = reader.ReadAlignedString();
-                        var second = new PPtr<Texture>(reader);
+                        new PPtr<Texture>(reader);
                     }
                 }
 
@@ -941,7 +1020,7 @@ namespace AssetStudio
                 m_Script = reader.ReadUInt8Array();
                 reader.AlignStream();
                 var m_PathName = reader.ReadAlignedString();
-                if (version == 5 && version.Minor >= 3) //5.3 - 5.4
+                if (version[0] == 5 && version[1] >= 3) //5.3 - 5.4
                 {
                     decompressedSize = reader.ReadUInt32();
                     m_SubProgramBlob = reader.ReadUInt8Array();

AssetStudio/Classes/SkinnedMeshRenderer.cs

@@ -1,11 +1,14 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
     public sealed class SkinnedMeshRenderer : Renderer
     {
         public PPtr<Mesh> m_Mesh;
-        public List<PPtr<Transform>> m_Bones;
+        public PPtr<Transform>[] m_Bones;
         public float[] m_BlendShapeWeights;
 
         public SkinnedMeshRenderer(ObjectReader reader) : base(reader)
@@ -15,21 +18,20 @@ namespace AssetStudio
             var m_SkinNormals = reader.ReadBoolean(); //3.1.0 and below
             reader.AlignStream();
 
-            if (version < (2, 6)) //2.6 down
+            if (version[0] == 2 && version[1] < 6) //2.6 down
             {
                 var m_DisableAnimationWhenOffscreen = new PPtr<Animation>(reader);
             }
 
             m_Mesh = new PPtr<Mesh>(reader);
 
-            var numBones = reader.ReadInt32();
-            m_Bones = new List<PPtr<Transform>>();
-            for (var b = 0; b < numBones; b++)
+            m_Bones = new PPtr<Transform>[reader.ReadInt32()];
+            for (int b = 0; b < m_Bones.Length; b++)
             {
-                m_Bones.Add(new PPtr<Transform>(reader));
+                m_Bones[b] = new PPtr<Transform>(reader);
             }
 
-            if (version >= (4, 3)) //4.3 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
             {
                 m_BlendShapeWeights = reader.ReadSingleArray();
             }

AssetStudio/Classes/Sprite.cs

@@ -68,7 +68,7 @@ namespace AssetStudio
             var version = reader.version;
 
             pos = reader.ReadVector3();
-            if (version <= (4, 3)) //4.3 and down
+            if (version[0] < 4 || (version[0] == 4 && version[1] <= 3)) //4.3 and down
             {
                 uv = reader.ReadVector2();
             }
@@ -79,11 +79,11 @@ namespace AssetStudio
     {
         public PPtr<Texture2D> texture;
         public PPtr<Texture2D> alphaTexture;
-        public List<SecondarySpriteTexture> secondaryTextures;
-        public List<SubMesh> m_SubMeshes;
+        public SecondarySpriteTexture[] secondaryTextures;
+        public SubMesh[] m_SubMeshes;
         public byte[] m_IndexBuffer;
         public VertexData m_VertexData;
-        public List<SpriteVertex> vertices;
+        public SpriteVertex[] vertices;
         public ushort[] indices;
         public Matrix4x4[] m_Bindpose;
         public BoneWeights4[] m_SourceSkin;
@@ -99,25 +99,28 @@ namespace AssetStudio
             var version = reader.version;
 
             texture = new PPtr<Texture2D>(reader);
-            alphaTexture = version >= (5, 2) ? new PPtr<Texture2D>(reader) : new PPtr<Texture2D>(); //5.2 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 2)) //5.2 and up
+            {
+                alphaTexture = new PPtr<Texture2D>(reader);
+            }
 
-            if (version >= 2019) //2019 and up
+            if (version[0] >= 2019) //2019 and up
             {
                 var secondaryTexturesSize = reader.ReadInt32();
-                secondaryTextures = new List<SecondarySpriteTexture>();
-                for (var i = 0; i < secondaryTexturesSize; i++)
+                secondaryTextures = new SecondarySpriteTexture[secondaryTexturesSize];
+                for (int i = 0; i < secondaryTexturesSize; i++)
                 {
-                    secondaryTextures.Add(new SecondarySpriteTexture(reader));
+                    secondaryTextures[i] = new SecondarySpriteTexture(reader);
                 }
             }
 
-            if (version >= (5, 6)) //5.6 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
             {
                 var m_SubMeshesSize = reader.ReadInt32();
-                m_SubMeshes = new List<SubMesh>();
-                for (var i = 0; i < m_SubMeshesSize; i++)
+                m_SubMeshes = new SubMesh[m_SubMeshesSize];
+                for (int i = 0; i < m_SubMeshesSize; i++)
                 {
-                    m_SubMeshes.Add(new SubMesh(reader));
+                    m_SubMeshes[i] = new SubMesh(reader);
                 }
 
                 m_IndexBuffer = reader.ReadUInt8Array();
@@ -128,26 +131,24 @@ namespace AssetStudio
             else
             {
                 var verticesSize = reader.ReadInt32();
-                vertices = new List<SpriteVertex>();
-                for (var i = 0; i < verticesSize; i++)
+                vertices = new SpriteVertex[verticesSize];
+                for (int i = 0; i < verticesSize; i++)
                 {
-                    vertices.Add(new SpriteVertex(reader));
+                    vertices[i] = new SpriteVertex(reader);
                 }
 
                 indices = reader.ReadUInt16Array();
                 reader.AlignStream();
             }
 
-            if (version >= 2018) //2018 and up
+            if (version[0] >= 2018) //2018 and up
             {
                 m_Bindpose = reader.ReadMatrixArray();
 
-                if (version < (2018, 2)) //2018.2 down
+                if (version[0] == 2018 && version[1] < 2) //2018.2 down
                 {
                     var m_SourceSkinSize = reader.ReadInt32();
-                    reader.ThrowIfTooLarge(m_SourceSkinSize * 32f);
-                    m_SourceSkin = new BoneWeights4[m_SourceSkinSize];
-                    for (var i = 0; i < m_SourceSkinSize; i++)
+                    for (int i = 0; i < m_SourceSkinSize; i++)
                     {
                         m_SourceSkin[i] = new BoneWeights4(reader);
                     }
@@ -156,18 +157,18 @@ namespace AssetStudio
 
             textureRect = new Rectf(reader);
             textureRectOffset = reader.ReadVector2();
-            if (version >= (5, 6)) //5.6 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 6)) //5.6 and up
             {
                 atlasRectOffset = reader.ReadVector2();
             }
 
             settingsRaw = new SpriteSettings(reader);
-            if (version >= (4, 5)) //4.5 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
             {
                 uvTransform = reader.ReadVector4();
             }
 
-            if (version >= 2017) //2017 and up
+            if (version[0] >= 2017) //2017 and up
             {
                 downscaleMultiplier = reader.ReadSingle();
             }
@@ -181,6 +182,13 @@ namespace AssetStudio
         public float width;
         public float height;
 
+        public Rectf(float x, float y, float w, float h) {
+            this.x = x;
+            this.y = y;
+            width = w;
+            height = h;
+        }
+
         public Rectf(BinaryReader reader)
         {
             x = reader.ReadSingle();
@@ -203,32 +211,35 @@ namespace AssetStudio
         public string[] m_AtlasTags;
         public PPtr<SpriteAtlas> m_SpriteAtlas;
         public SpriteRenderData m_RD;
-        //public Vector2[][] m_PhysicsShape;
+        public Vector2[][] m_PhysicsShape;
+        public bool akSplitAlpha;
 
         public Sprite(ObjectReader reader) : base(reader)
         {
             m_Rect = new Rectf(reader);
             m_Offset = reader.ReadVector2();
-            if (version >= (4, 5)) //4.5 and up
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 5)) //4.5 and up
             {
                 m_Border = reader.ReadVector4();
             }
 
             m_PixelsToUnits = reader.ReadSingle();
-            if (version >= (5, 4, 2)
-                || version == (5, 4, 1) && version.IsPatch && version.Build >= 3) //5.4.1p3 and up
+            if (version[0] > 5
+                || (version[0] == 5 && version[1] > 4)
+                || (version[0] == 5 && version[1] == 4 && version[2] >= 2)
+                || (version[0] == 5 && version[1] == 4 && version[2] == 1 && buildType.IsPatch && version[3] >= 3)) //5.4.1p3 and up
             {
                 m_Pivot = reader.ReadVector2();
             }
 
             m_Extrude = reader.ReadUInt32();
-            if (version >= (5, 3)) //5.3 and up
+            if (version[0] > 5 || (version[0] == 5 && version[1] >= 3)) //5.3 and up
             {
                 m_IsPolygon = reader.ReadBoolean();
                 reader.AlignStream();
             }
 
-            if (version >= 2017) //2017 and up
+            if (version[0] >= 2017) //2017 and up
             {
                 var first = new Guid(reader.ReadBytes(16));
                 var second = reader.ReadInt64();
@@ -240,18 +251,19 @@ namespace AssetStudio
             }
 
             m_RD = new SpriteRenderData(reader);
-            /*
-            if (version >= 2017) //2017 and up
+
+            if (version[0] >= 2017) //2017 and up
             {
                 var m_PhysicsShapeSize = reader.ReadInt32();
-                var physicsShapeList = new List<Vector2[]>();
-                for (var i = 0; i < m_PhysicsShapeSize; i++)
+                m_PhysicsShape = new Vector2[m_PhysicsShapeSize][];
+                for (int i = 0; i < m_PhysicsShapeSize; i++)
                 {
-                    physicsShapeList.Add(reader.ReadVector2Array());
+                    m_PhysicsShape[i] = reader.ReadVector2Array();
                 }
-                m_PhysicsShape = physicsShapeList.ToArray();
             }
-            */
+
+            akSplitAlpha = false;
+
             //vector m_Bones 2018 and up
         }
     }

AssetStudio/Classes/SpriteAtlas.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections.Generic;
-using System.Text.Json.Serialization;
 
 namespace AssetStudio
 {
@@ -14,7 +13,7 @@ namespace AssetStudio
         public Vector4 uvTransform;
         public float downscaleMultiplier;
         public SpriteSettings settingsRaw;
-        public List<SecondarySpriteTexture> secondaryTextures;
+        public SecondarySpriteTexture[] secondaryTextures;
 
         public SpriteAtlasData(ObjectReader reader)
         {
@@ -23,20 +22,20 @@ namespace AssetStudio
             alphaTexture = new PPtr<Texture2D>(reader);
             textureRect = new Rectf(reader);
             textureRectOffset = reader.ReadVector2();
-            if (version >= (2017, 2)) //2017.2 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
             {
                 atlasRectOffset = reader.ReadVector2();
             }
             uvTransform = reader.ReadVector4();
             downscaleMultiplier = reader.ReadSingle();
             settingsRaw = new SpriteSettings(reader);
-            if (version >= (2020, 2)) //2020.2 and up
+            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
             {
                 var secondaryTexturesSize = reader.ReadInt32();
-                secondaryTextures = new List<SecondarySpriteTexture>();
-                for (var i = 0; i < secondaryTexturesSize; i++)
+                secondaryTextures = new SecondarySpriteTexture[secondaryTexturesSize];
+                for (int i = 0; i < secondaryTexturesSize; i++)
                 {
-                    secondaryTextures.Add(new SecondarySpriteTexture(reader));
+                    secondaryTextures[i] = new SecondarySpriteTexture(reader);
                 }
                 reader.AlignStream();
             }
@@ -45,25 +44,24 @@ namespace AssetStudio
 
     public sealed class SpriteAtlas : NamedObject
     {
-        public List<PPtr<Sprite>> m_PackedSprites;
-        [JsonConverter(typeof(JsonConverterHelper.RenderDataMapConverter))]
+        public PPtr<Sprite>[] m_PackedSprites;
         public Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData> m_RenderDataMap;
         public bool m_IsVariant;
 
         public SpriteAtlas(ObjectReader reader) : base(reader)
         {
             var m_PackedSpritesSize = reader.ReadInt32();
-            m_PackedSprites = new List<PPtr<Sprite>>();
-            for (var i = 0; i < m_PackedSpritesSize; i++)
+            m_PackedSprites = new PPtr<Sprite>[m_PackedSpritesSize];
+            for (int i = 0; i < m_PackedSpritesSize; i++)
             {
-                m_PackedSprites.Add(new PPtr<Sprite>(reader));
+                m_PackedSprites[i] = new PPtr<Sprite>(reader);
             }
 
             var m_PackedSpriteNamesToIndex = reader.ReadStringArray();
 
             var m_RenderDataMapSize = reader.ReadInt32();
-            m_RenderDataMap = new Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData>();
-            for (var i = 0; i < m_RenderDataMapSize; i++)
+            m_RenderDataMap = new Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData>(m_RenderDataMapSize);
+            for (int i = 0; i < m_RenderDataMapSize; i++)
             {
                 var first = new Guid(reader.ReadBytes(16));
                 var second = reader.ReadInt64();

AssetStudio/Classes/StreamingInfo.cs

@@ -1,27 +0,0 @@
-namespace AssetStudio
-{
-    public class StreamingInfo
-    {
-        public long offset; //ulong
-        public uint size;
-        public string path;
-
-        public StreamingInfo() { }
-
-        public StreamingInfo(ObjectReader reader)
-        {
-            var version = reader.version;
-
-            if (version >= 2020) //2020.1 and up
-            {
-                offset = reader.ReadInt64();
-            }
-            else
-            {
-                offset = reader.ReadUInt32();
-            }
-            size = reader.ReadUInt32();
-            path = reader.ReadAlignedString();
-        }
-    }
-}

AssetStudio/Classes/TextAsset.cs

@@ -1,4 +1,10 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+
+namespace AssetStudio
 {
     public sealed class TextAsset : NamedObject
     {

AssetStudio/Classes/Texture.cs

@@ -1,20 +1,19 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace AssetStudio
 {
     public abstract class Texture : NamedObject
     {
-        protected Texture() { }
-
         protected Texture(ObjectReader reader) : base(reader)
         {
-            if (version >= (2017, 3)) //2017.3 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 3)) //2017.3 and up
             {
-                if (version < (2023, 2)) //2023.2 down
-                {
-                    var m_ForcedFallbackFormat = reader.ReadInt32();
-                    var m_DownscaleFallback = reader.ReadBoolean();
-                }
-
-                if (version >= (2020, 2)) //2020.2 and up
+                var m_ForcedFallbackFormat = reader.ReadInt32();
+                var m_DownscaleFallback = reader.ReadBoolean();
+                if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
                 {
                     var m_IsAlphaChannelOptional = reader.ReadBoolean();
                 }

AssetStudio/Classes/Texture2D.cs

@@ -1,109 +1,79 @@
 using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
 
 namespace AssetStudio
 {
+    public class StreamingInfo
+    {
+        public long offset; //ulong
+        public uint size;
+        public string path;
+
+        public StreamingInfo(ObjectReader reader)
+        {
+            var version = reader.version;
+
+            if (version[0] >= 2020) //2020.1 and up
+            {
+                offset = reader.ReadInt64();
+            }
+            else
+            {
+                offset = reader.ReadUInt32();
+            }
+            size = reader.ReadUInt32();
+            path = reader.ReadAlignedString();
+        }
+    }
+
+    public class GLTextureSettings
+    {
+        public int m_FilterMode;
+        public int m_Aniso;
+        public float m_MipBias;
+        public int m_WrapMode;
+
+        public GLTextureSettings(ObjectReader reader)
+        {
+            var version = reader.version;
+
+            m_FilterMode = reader.ReadInt32();
+            m_Aniso = reader.ReadInt32();
+            m_MipBias = reader.ReadSingle();
+            if (version[0] >= 2017)//2017.x and up
+            {
+                m_WrapMode = reader.ReadInt32(); //m_WrapU
+                int m_WrapV = reader.ReadInt32();
+                int m_WrapW = reader.ReadInt32();
+            }
+            else
+            {
+                m_WrapMode = reader.ReadInt32();
+            }
+        }
+    }
+
     public sealed class Texture2D : Texture
     {
         public int m_Width;
         public int m_Height;
-        public uint m_CompleteImageSize;
         public TextureFormat m_TextureFormat;
         public bool m_MipMap;
         public int m_MipCount;
         public GLTextureSettings m_TextureSettings;
-        public int m_ImageCount;
-        public byte[] m_PlatformBlob;
-        [JsonPropertyName("image data")]
         public ResourceReader image_data;
         public StreamingInfo m_StreamData;
-        public StreamingInfo m_DataStreamData; //Tuanjie
-
-        public Texture2D() { }
-
-        public Texture2D(Texture2DArray m_Texture2DArray, int layer) // Texture2DArrayImage
-        {
-            reader = m_Texture2DArray.reader;
-            assetsFile = m_Texture2DArray.assetsFile;
-            version = m_Texture2DArray.version;
-            platform = m_Texture2DArray.platform;
-
-            m_Name = $"{m_Texture2DArray.m_Name}_{layer + 1}";
-            type = ClassIDType.Texture2DArrayImage;
-            m_PathID = m_Texture2DArray.m_PathID;
-
-            m_Width = m_Texture2DArray.m_Width;
-            m_Height = m_Texture2DArray.m_Height;
-            m_TextureFormat = m_Texture2DArray.m_Format.ToTextureFormat();
-            m_MipCount = m_Texture2DArray.m_MipCount;
-            m_TextureSettings = m_Texture2DArray.m_TextureSettings;
-            m_StreamData = m_Texture2DArray.m_StreamData;
-            m_PlatformBlob = Array.Empty<byte>();
-            m_MipMap = m_MipCount > 1;
-            m_ImageCount = 1;
-
-            //var imgActualDataSize = GetImageDataSize(m_TextureFormat);
-            //var mipmapSize = (int)(m_Texture2DArray.m_DataSize / m_Texture2DArray.m_Depth - imgActualDataSize);
-            m_CompleteImageSize = (uint)(m_Texture2DArray.m_DataSize / m_Texture2DArray.m_Depth);
-            var offset = layer * m_CompleteImageSize + m_Texture2DArray.image_data.Offset;
-            
-            image_data = !string.IsNullOrEmpty(m_StreamData?.path) 
-                ? new ResourceReader(m_StreamData.path, assetsFile, offset, m_CompleteImageSize) 
-                : new ResourceReader(reader, offset, m_CompleteImageSize);
-
-            byteSize = (uint)(m_Width * m_Height) * 4;
-        }
-
-        public Texture2D(ObjectReader reader, byte[] type, JsonSerializerOptions jsonOptions) : base(reader)
-        {
-            var parsedTex2d = JsonSerializer.Deserialize<Texture2D>(type, jsonOptions);
-            m_Width = parsedTex2d.m_Width;
-            m_Height = parsedTex2d.m_Height;
-            m_CompleteImageSize = parsedTex2d.m_CompleteImageSize;
-            m_TextureFormat = parsedTex2d.m_TextureFormat;
-            m_MipMap = parsedTex2d.m_MipMap;
-            m_MipCount = parsedTex2d.m_MipCount;
-            m_ImageCount = parsedTex2d.m_ImageCount;
-            m_TextureSettings = parsedTex2d.m_TextureSettings;
-            m_StreamData = parsedTex2d.m_StreamData;
-            m_PlatformBlob = parsedTex2d.m_PlatformBlob ?? Array.Empty<byte>();
-
-            image_data = !string.IsNullOrEmpty(m_StreamData?.path)
-                ? new ResourceReader(m_StreamData.path, assetsFile, m_StreamData.offset, m_StreamData.size)
-                : new ResourceReader(reader, parsedTex2d.image_data.Offset, parsedTex2d.image_data.Size);
-        }
 
         public Texture2D(ObjectReader reader) : base(reader)
         {
             m_Width = reader.ReadInt32();
             m_Height = reader.ReadInt32();
-            m_CompleteImageSize = reader.ReadUInt32();
-            if (version >= 2020) //2020.1 and up
+            var m_CompleteImageSize = reader.ReadInt32();
+            if (version[0] >= 2020) //2020.1 and up
             {
                 var m_MipsStripped = reader.ReadInt32();
             }
-            if (version.IsTuanjie && (version > (2022, 3, 2) || version.Build >= 8)) //2022.3.2t8(1.1.0) and up
-            {
-                var m_WebStreaming = reader.ReadBoolean();
-                reader.AlignStream();
-                var m_PriorityLevel = reader.ReadInt32();
-                var m_UploadedMode = reader.ReadInt32();
-                m_DataStreamData = new StreamingInfo //sample is needed
-                {
-                    offset = 0,
-                    size = reader.ReadUInt32(),
-                    path = reader.ReadAlignedString()
-                };
-            }
             m_TextureFormat = (TextureFormat)reader.ReadInt32();
-            if (version.IsTuanjie && version >= (2022, 3, 62)) //2022.3.62t1(1.7.0) and up
-            {
-                var m_TextureManagerMultiFormatSettingSize = reader.ReadInt32();
-                reader.Position += m_TextureManagerMultiFormatSettingSize; //skip byte[] m_TextureManagerMultiFormatSetting
-                reader.AlignStream();
-            }
-            if (version < (5, 2)) //5.2 down
+            if (version[0] < 5 || (version[0] == 5 && version[1] < 2)) //5.2 down
             {
                 m_MipMap = reader.ReadBoolean();
             }
@@ -111,132 +81,152 @@ namespace AssetStudio
             {
                 m_MipCount = reader.ReadInt32();
             }
-            if (version >= (2, 6)) //2.6.0 and up
+            if (version[0] > 2 || (version[0] == 2 && version[1] >= 6)) //2.6.0 and up
             {
                 var m_IsReadable = reader.ReadBoolean();
             }
-            if (version >= 2020) //2020.1 and up
+            if (version[0] >= 2020) //2020.1 and up
             {
                 var m_IsPreProcessed = reader.ReadBoolean();
             }
-            if (version >= (2019, 3)) //2019.3 and up
+            if (version[0] > 2019 || (version[0] == 2019 && version[1] >= 3)) //2019.3 and up
             {
-                if (version >= (2022, 2)) //2022.2 and up
+                if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
                 {
                     var m_IgnoreMipmapLimit = reader.ReadBoolean();
-                    reader.AlignStream();
                 }
                 else
                 {
                     var m_IgnoreMasterTextureLimit = reader.ReadBoolean();
                 }
             }
-            if (version.IsInRange(3, (5, 5))) //3.0.0 - 5.4
+            if (version[0] >= 3) //3.0.0 - 5.4
             {
-                var m_ReadAllowed = reader.ReadBoolean();
+                if (version[0] < 5 || (version[0] == 5 && version[1] <= 4))
+                {
+                    var m_ReadAllowed = reader.ReadBoolean();
+                }
             }
-            if (version >= (2022, 2)) //2022.2 and up
+            if (version[0] > 2022 || (version[0] == 2022 && version[1] >= 2)) //2022.2 and up
             {
                 var m_MipmapLimitGroupName = reader.ReadAlignedString();
+                reader.AlignStream();
             }
-            if (version >= (2018, 2)) //2018.2 and up
+            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
             {
                 var m_StreamingMipmaps = reader.ReadBoolean();
             }
             reader.AlignStream();
-            if (version >= (2018, 2)) //2018.2 and up
+            if (version[0] > 2018 || (version[0] == 2018 && version[1] >= 2)) //2018.2 and up
             {
                 var m_StreamingMipmapsPriority = reader.ReadInt32();
             }
-            m_ImageCount = reader.ReadInt32();
+            var m_ImageCount = reader.ReadInt32();
             var m_TextureDimension = reader.ReadInt32();
             m_TextureSettings = new GLTextureSettings(reader);
-            if (version >= 3) //3.0 and up
+            if (version[0] >= 3) //3.0 and up
             {
                 var m_LightmapFormat = reader.ReadInt32();
             }
-            if (version >= (3, 5)) //3.5.0 and up
+            if (version[0] > 3 || (version[0] == 3 && version[1] >= 5)) //3.5.0 and up
             {
                 var m_ColorSpace = reader.ReadInt32();
             }
-            if (version >= (2020, 2)) //2020.2 and up
+            if (version[0] > 2020 || (version[0] == 2020 && version[1] >= 2)) //2020.2 and up
             {
-                m_PlatformBlob = reader.ReadUInt8Array();
+                var m_PlatformBlob = reader.ReadUInt8Array();
                 reader.AlignStream();
             }
-            else
-            {
-                m_PlatformBlob = Array.Empty<byte>();
-            }
             var image_data_size = reader.ReadInt32();
-            if (image_data_size == 0 && version >= (5, 3))//5.3.0 and up
+            if (image_data_size == 0 && ((version[0] == 5 && version[1] >= 3) || version[0] > 5))//5.3.0 and up
             {
                 m_StreamData = new StreamingInfo(reader);
             }
 
-            image_data = !string.IsNullOrEmpty(m_StreamData?.path)
-                ? new ResourceReader(m_StreamData.path, assetsFile, m_StreamData.offset, m_StreamData.size)
-                : new ResourceReader(reader, reader.BaseStream.Position, image_data_size);
-        }
-
-        // https://docs.unity3d.com/2023.3/Documentation/Manual/class-TextureImporterOverride.html
-        private int GetImageDataSize(TextureFormat textureFormat)
-        {
-            var imgDataSize = m_Width * m_Height;
-            switch (textureFormat)
+            ResourceReader resourceReader;
+            if (!string.IsNullOrEmpty(m_StreamData?.path))
             {
-                case TextureFormat.ASTC_RGBA_5x5:
-                    // https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_astc/
-                    imgDataSize = (int)(MathF.Floor((m_Width + 4) / 5f) * MathF.Floor((m_Height + 4) / 5f) * 16);
-                    break;
-                case TextureFormat.ASTC_RGBA_6x6:
-                    imgDataSize = (int)(MathF.Floor((m_Width + 5) / 6f) * MathF.Floor((m_Height + 5) / 6f) * 16);
-                    break;
-                case TextureFormat.ASTC_RGBA_8x8:
-                    imgDataSize = (int)(MathF.Floor((m_Width + 7) / 8f) * MathF.Floor((m_Height + 7) / 8f) * 16);
-                    break;
-                case TextureFormat.ASTC_RGBA_10x10:
-                    imgDataSize = (int)(MathF.Floor((m_Width + 9) / 10f) * MathF.Floor((m_Height + 9) / 10f) * 16);
-                    break;
-                case TextureFormat.ASTC_RGBA_12x12:
-                    imgDataSize = (int)(MathF.Floor((m_Width + 11) / 12f) * MathF.Floor((m_Height + 11) / 12f) * 16);
-                    break;
-                case TextureFormat.DXT1:
-                case TextureFormat.EAC_R:
-                case TextureFormat.EAC_R_SIGNED:
-                case TextureFormat.ATC_RGB4:
-                case TextureFormat.ETC_RGB4:
-                case TextureFormat.ETC2_RGB:
-                case TextureFormat.ETC2_RGBA1:
-                case TextureFormat.PVRTC_RGBA4:
-                    imgDataSize /= 2;
-                    break;
-                case TextureFormat.PVRTC_RGBA2:
-                    imgDataSize /= 4;
-                    break;
-                case TextureFormat.R16:
-                case TextureFormat.RGB565:
-                    imgDataSize *= 2;
-                    break;
-                case TextureFormat.RGB24:
-                    imgDataSize *= 3;
-                    break;
-                case TextureFormat.RG32:
-                case TextureFormat.RGBA32:
-                case TextureFormat.ARGB32:
-                case TextureFormat.BGRA32:
-                case TextureFormat.RGB9e5Float:
-                    imgDataSize *= 4;
-                    break;
-                case TextureFormat.RGB48:
-                    imgDataSize *= 6;
-                    break;
-                case TextureFormat.RGBAHalf:
-                case TextureFormat.RGBA64:
-                    imgDataSize *= 8;
-                    break;
+                resourceReader = new ResourceReader(m_StreamData.path, assetsFile, m_StreamData.offset, m_StreamData.size);
             }
-            return imgDataSize;
+            else
+            {
+                resourceReader = new ResourceReader(reader, reader.BaseStream.Position, image_data_size);
+            }
+            image_data = resourceReader;
         }
     }
+
+    public enum TextureFormat
+    {
+        Alpha8 = 1,
+        ARGB4444,
+        RGB24,
+        RGBA32,
+        ARGB32,
+        ARGBFloat,
+        RGB565,
+        BGR24,
+        R16,
+        DXT1,
+        DXT3,
+        DXT5,
+        RGBA4444,
+        BGRA32,
+        RHalf,
+        RGHalf,
+        RGBAHalf,
+        RFloat,
+        RGFloat,
+        RGBAFloat,
+        YUY2,
+        RGB9e5Float,
+        RGBFloat,
+        BC6H,
+        BC7,
+        BC4,
+        BC5,
+        DXT1Crunched,
+        DXT5Crunched,
+        PVRTC_RGB2,
+        PVRTC_RGBA2,
+        PVRTC_RGB4,
+        PVRTC_RGBA4,
+        ETC_RGB4,
+        ATC_RGB4,
+        ATC_RGBA8,
+        EAC_R = 41,
+        EAC_R_SIGNED,
+        EAC_RG,
+        EAC_RG_SIGNED,
+        ETC2_RGB,
+        ETC2_RGBA1,
+        ETC2_RGBA8,
+        ASTC_RGB_4x4,
+        ASTC_RGB_5x5,
+        ASTC_RGB_6x6,
+        ASTC_RGB_8x8,
+        ASTC_RGB_10x10,
+        ASTC_RGB_12x12,
+        ASTC_RGBA_4x4,
+        ASTC_RGBA_5x5,
+        ASTC_RGBA_6x6,
+        ASTC_RGBA_8x8,
+        ASTC_RGBA_10x10,
+        ASTC_RGBA_12x12,
+        ETC_RGB4_3DS,
+        ETC_RGBA8_3DS,
+        RG16,
+        R8,
+        ETC_RGB4Crunched,
+        ETC2_RGBA8Crunched,
+        ASTC_HDR_4x4,
+        ASTC_HDR_5x5,
+        ASTC_HDR_6x6,
+        ASTC_HDR_8x8,
+        ASTC_HDR_10x10,
+        ASTC_HDR_12x12,
+        RG32,
+        RGB48,
+        RGBA64
+    }
 }

AssetStudio/Classes/Texture2DArray.cs

@@ -1,96 +0,0 @@
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public sealed class Texture2DArray : Texture
-    {
-        public int m_Width;
-        public int m_Height;
-        public int m_Depth;
-        public GraphicsFormat m_Format;
-        public int m_MipCount;
-        public uint m_DataSize;
-        public GLTextureSettings m_TextureSettings;
-        public int m_ColorSpace;
-        [JsonPropertyName("image data")]
-        public ResourceReader image_data;
-        public StreamingInfo m_StreamData;
-        public List<Texture2D> TextureList;
-
-        public Texture2DArray() { }
-
-        public Texture2DArray(ObjectReader reader) : base(reader)
-        {
-            if (version >= 2019) //2019 and up
-            {
-                m_ColorSpace = reader.ReadInt32();
-                m_Format = (GraphicsFormat)reader.ReadInt32();
-            }
-            m_Width = reader.ReadInt32();
-            m_Height = reader.ReadInt32();
-            m_Depth = reader.ReadInt32();
-            if (version < 2019) //2019 down
-            {
-                m_Format = (GraphicsFormat)reader.ReadInt32();
-            }
-            m_MipCount = reader.ReadInt32();
-            if (version >= (2023, 2)) //2023.2 and up
-            {
-                var m_MipsStripped = reader.ReadInt32();
-            }
-            m_DataSize = reader.ReadUInt32();
-            m_TextureSettings = new GLTextureSettings(reader);
-            if (version < 2019) //2019 down
-            {
-                m_ColorSpace = reader.ReadInt32();
-            }
-            if (version >= (2020, 2)) //2020.2 and up
-            {
-                var m_UsageMode = reader.ReadInt32();
-            }
-            var m_IsReadable = reader.ReadBoolean();
-            if (version > (2023, 2)) //2023.2 and up
-            {
-                var m_IgnoreMipmapLimit = reader.ReadBoolean();
-                reader.AlignStream();
-                var m_MipmapLimitGroupName = reader.ReadAlignedString();
-            }
-            else
-            {
-                reader.AlignStream();
-            }
-            var image_data_size = reader.ReadInt32();
-            if (image_data_size == 0 && version >= (5, 6)) //5.6 and up
-            {
-                m_StreamData = new StreamingInfo(reader);
-            }
-
-            image_data = !string.IsNullOrEmpty(m_StreamData?.path)
-                ? new ResourceReader(m_StreamData.path, assetsFile, m_StreamData.offset, (int)m_StreamData.size)
-                : new ResourceReader(reader, reader.BaseStream.Position, image_data_size);
-
-            TextureList = new List<Texture2D>();
-        }
-
-        public Texture2DArray(ObjectReader reader, byte[] type, JsonSerializerOptions jsonOptions) : base(reader)
-        {
-            var parsedTex2dArray = JsonSerializer.Deserialize<Texture2DArray>(type, jsonOptions);
-            m_Width = parsedTex2dArray.m_Width;
-            m_Height = parsedTex2dArray.m_Height;
-            m_Depth = parsedTex2dArray.m_Depth;
-            m_Format = parsedTex2dArray.m_Format;
-            m_MipCount = parsedTex2dArray.m_MipCount;
-            m_DataSize = parsedTex2dArray.m_DataSize;
-            m_TextureSettings = parsedTex2dArray.m_TextureSettings;
-            m_StreamData = parsedTex2dArray.m_StreamData;
-            
-            image_data = !string.IsNullOrEmpty(m_StreamData?.path)
-                ? new ResourceReader(m_StreamData.path, assetsFile, m_StreamData.offset, m_StreamData.size)
-                : new ResourceReader(reader, parsedTex2dArray.image_data.Offset, parsedTex2dArray.image_data.Size);
-
-            TextureList = new List<Texture2D>();
-        }
-    }
-}

AssetStudio/Classes/TextureFormat.cs

@@ -1,282 +0,0 @@
-namespace AssetStudio
-{
-    public enum TextureFormat
-    {
-        /// <summary>
-        /// Alpha-only texture format, 8 bit integer.
-        /// </summary>
-        Alpha8 = 1,
-        /// <summary>
-        /// A 16 bits/pixel texture format. Texture stores color with an alpha channel.
-        /// </summary>
-        ARGB4444,
-        /// <summary>
-        /// Three channel (RGB) texture format, 8-bits unsigned integer per channel.
-        /// </summary>
-        RGB24,
-        /// <summary>
-        /// Four channel (RGBA) texture format, 8-bits unsigned integer per channel.
-        /// </summary>
-        RGBA32,
-        /// <summary>
-        /// Color with alpha texture format, 8-bits per channel.
-        /// </summary>
-        ARGB32,
-        /// <summary>
-        /// </summary>
-        ARGBFloat,
-        /// <summary>
-        /// A 16 bit color texture format.
-        /// </summary>
-        RGB565,
-        /// <summary> 
-        /// </summary>
-        BGR24,
-        /// <summary>
-        /// Single channel (R) texture format, 16 bit integer.
-        /// </summary>
-        R16,
-        /// <summary>
-        /// Compressed color texture format.
-        /// </summary>
-        DXT1,
-        /// <summary>
-        /// </summary>
-        DXT3,
-        /// <summary>
-        /// Compressed color with alpha channel texture format.
-        /// </summary>
-        DXT5,
-        /// <summary>
-        /// Color and alpha texture format, 4 bit per channel.
-        /// </summary>
-        RGBA4444,
-        /// <summary>
-        /// Color with alpha texture format, 8-bits per channel.
-        /// </summary>
-        BGRA32,
-        /// <summary>
-        /// Scalar (R)  texture format, 16 bit floating point.
-        /// </summary>
-        RHalf,
-        /// <summary>
-        /// Two color (RG)  texture format, 16 bit floating point per channel.
-        /// </summary>
-        RGHalf,
-        /// <summary>
-        /// RGB color and alpha texture format, 16 bit floating point per channel.
-        /// </summary>
-        RGBAHalf,
-        /// <summary>
-        /// Scalar (R) texture format, 32 bit floating point.
-        /// </summary>
-        RFloat,
-        /// <summary>
-        /// Two color (RG)  texture format, 32 bit floating point per channel.
-        /// </summary>
-        RGFloat,
-        /// <summary>
-        /// RGB color and alpha texture format,  32-bit floats per channel.
-        /// </summary>
-        RGBAFloat,
-        /// <summary>
-        /// A format that uses the YUV color space and is often used for video encoding or playback.
-        /// </summary>
-        YUY2,
-        /// <summary>
-        /// RGB HDR format, with 9 bit mantissa per channel and a 5 bit shared exponent.
-        /// </summary>
-        RGB9e5Float,
-        /// <summary>
-        /// </summary>
-        RGBFloat,
-        /// <summary>
-        /// HDR compressed color texture format.
-        /// </summary>
-        BC6H,
-        /// <summary>
-        /// High quality compressed color texture format.
-        /// </summary>
-        BC7,
-        /// <summary>
-        /// Compressed one channel (R) texture format.
-        /// </summary>
-        BC4,
-        /// <summary>
-        /// Compressed two-channel (RG) texture format.
-        /// </summary>
-        BC5,
-        /// <summary>
-        /// Compressed color texture format with Crunch compression for smaller storage sizes.
-        /// </summary>
-        DXT1Crunched,
-        /// <summary>
-        /// Compressed color with alpha channel texture format with Crunch compression for smaller storage sizes.
-        /// </summary>
-        DXT5Crunched,
-        /// <summary>
-        /// PowerVR (iOS) 2 bits/pixel compressed color texture format.
-        /// </summary>
-        PVRTC_RGB2,
-        /// <summary>
-        /// PowerVR (iOS) 2 bits/pixel compressed with alpha channel texture format.
-        /// </summary>
-        PVRTC_RGBA2,
-        /// <summary>
-        /// PowerVR (iOS) 4 bits/pixel compressed color texture format.
-        /// </summary>
-        PVRTC_RGB4,
-        /// <summary>
-        /// PowerVR (iOS) 4 bits/pixel compressed with alpha channel texture format.
-        /// </summary>
-        PVRTC_RGBA4,
-        /// <summary>
-        /// ETC (GLES2.0) 4 bits/pixel compressed RGB texture format.
-        /// </summary>
-        ETC_RGB4,
-        /// <summary>
-        /// ATC (ATITC) 4 bits/pixel compressed RGB texture format.
-        /// </summary>
-        ATC_RGB4,
-        /// <summary>
-        /// ATC (ATITC) 8 bits/pixel compressed RGB texture format.
-        /// </summary>
-        ATC_RGBA8,
-        /// <summary>
-        /// ETC2 / EAC (GL ES 3.0) 4 bits/pixel compressed unsigned single-channel texture format.
-        /// </summary>
-        EAC_R = 41,
-        /// <summary>
-        /// ETC2 / EAC (GL ES 3.0) 4 bits/pixel compressed signed single-channel texture format.
-        /// </summary>
-        EAC_R_SIGNED,
-        /// <summary>
-        /// ETC2 / EAC (GL ES 3.0) 8 bits/pixel compressed unsigned dual-channel (RG) texture format.
-        /// </summary>
-        EAC_RG,
-        /// <summary>
-        /// ETC2 / EAC (GL ES 3.0) 8 bits/pixel compressed signed dual-channel (RG) texture format.
-        /// </summary>
-        EAC_RG_SIGNED,
-        /// <summary>
-        /// ETC2 (GL ES 3.0) 4 bits/pixel compressed RGB texture format.
-        /// </summary>
-        ETC2_RGB,
-        /// <summary>
-        /// ETC2 (GL ES 3.0) 4 bits/pixel RGB+1-bit alpha texture format.
-        /// </summary>
-        ETC2_RGBA1,
-        /// <summary>
-        /// ETC2 (GL ES 3.0) 8 bits/pixel compressed RGBA texture format.
-        /// </summary>
-        ETC2_RGBA8,
-        /// <summary>
-        /// ASTC (4x4 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_4x4,
-        /// <summary>
-        /// ASTC (5x5 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_5x5,
-        /// <summary>
-        /// ASTC (6x6 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_6x6,
-        /// <summary>
-        /// ASTC (8x8 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_8x8,
-        /// <summary>
-        /// ASTC (10x10 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_10x10,
-        /// <summary>
-        /// ASTC (12x12 pixel block in 128 bits) compressed RGB texture format.
-        /// </summary>
-        ASTC_RGB_12x12,
-        /// <summary>
-        /// ASTC (4x4 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_4x4,
-        /// <summary>
-        /// ASTC (5x5 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_5x5,
-        /// <summary>
-        /// ASTC (6x6 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_6x6,
-        /// <summary>
-        /// ASTC (8x8 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_8x8,
-        /// <summary>
-        /// ASTC (10x10 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_10x10,
-        /// <summary>
-        /// ASTC (12x12 pixel block in 128 bits) compressed RGBA texture format.
-        /// </summary>
-        ASTC_RGBA_12x12,
-        /// <summary>
-        /// ETC 4 bits/pixel compressed RGB texture format.
-        /// </summary>
-        ETC_RGB4_3DS,
-        /// <summary>
-        /// ETC 4 bits/pixel RGB + 4 bits/pixel Alpha compressed texture format.
-        /// </summary>
-        ETC_RGBA8_3DS,
-        /// <summary>
-        /// Two color (RG) texture format, 8-bits per channel.
-        /// </summary>
-        RG16,
-        /// <summary>
-        /// Single channel (R) texture format, 8 bit integer.
-        /// </summary>
-        R8,
-        /// <summary>
-        /// Compressed color texture format with Crunch compression for smaller storage sizes.
-        /// </summary>
-        ETC_RGB4Crunched,
-        /// <summary>
-        /// Compressed color with alpha channel texture format using Crunch compression for smaller storage sizes.
-        /// </summary>
-        ETC2_RGBA8Crunched,
-        /// <summary>
-        /// ASTC (4x4 pixel block in 128 bits) compressed RGB(A) HDR texture format.
-        /// </summary>
-        ASTC_HDR_4x4,
-        /// <summary>
-        /// ASTC (5x5 pixel block in 128 bits) compressed RGB(A) HDR texture format.
-        /// </summary>
-        ASTC_HDR_5x5,
-        /// <summary>
-        /// ASTC (6x6 pixel block in 128 bits) compressed RGB(A) HDR texture format.
-        /// </summary>
-        ASTC_HDR_6x6,
-        /// <summary>
-        /// ASTC (8x8 pixel block in 128 bits) compressed RGB(A) texture format.
-        /// </summary>
-        ASTC_HDR_8x8,
-        /// <summary>
-        /// ASTC (10x10 pixel block in 128 bits) compressed RGB(A) HDR texture format.
-        /// </summary>
-        ASTC_HDR_10x10,
-        /// <summary>
-        /// ASTC (12x12 pixel block in 128 bits) compressed RGB(A) HDR texture format.
-        /// </summary>
-        ASTC_HDR_12x12,
-        /// <summary>
-        /// Two channel (RG) texture format, 16-bits unsigned integer per channel.
-        /// </summary>
-        RG32,
-        /// <summary>
-        /// Three channel (RGB) texture format, 16-bits unsigned integer per channel.
-        /// </summary>
-        RGB48,
-        /// <summary>
-        /// Four channel (RGBA) texture format, 16-bits unsigned integer per channel.
-        /// </summary>
-        RGBA64,
-    }
-}

AssetStudio/Classes/Transform.cs

@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
@@ -7,7 +10,7 @@ namespace AssetStudio
         public Quaternion m_LocalRotation;
         public Vector3 m_LocalPosition;
         public Vector3 m_LocalScale;
-        public List<PPtr<Transform>> m_Children;
+        public PPtr<Transform>[] m_Children;
         public PPtr<Transform> m_Father;
 
         public Transform(ObjectReader reader) : base(reader)
@@ -17,10 +20,10 @@ namespace AssetStudio
             m_LocalScale = reader.ReadVector3();
 
             int m_ChildrenCount = reader.ReadInt32();
-            m_Children = new List<PPtr<Transform>>();
-            for (var i = 0; i < m_ChildrenCount; i++)
+            m_Children = new PPtr<Transform>[m_ChildrenCount];
+            for (int i = 0; i < m_ChildrenCount; i++)
             {
-                m_Children.Add(new PPtr<Transform>(reader));
+                m_Children[i] = new PPtr<Transform>(reader);
             }
             m_Father = new PPtr<Transform>(reader);
         }

AssetStudio/Classes/VideoClip.cs

@@ -34,7 +34,7 @@ namespace AssetStudio
             var m_ProxyHeight = reader.ReadUInt32();
             Width = reader.ReadUInt32();
             Height = reader.ReadUInt32();
-            if (version >= (2017, 2)) //2017.2 and up
+            if (version[0] > 2017 || (version[0] == 2017 && version[1] >= 2)) //2017.2 and up
             {
                 var m_PixelAspecRatioNum = reader.ReadUInt32();
                 var m_PixelAspecRatioDen = reader.ReadUInt32();
@@ -46,17 +46,18 @@ namespace AssetStudio
             reader.AlignStream();
             var m_AudioSampleRate = reader.ReadUInt32Array();
             var m_AudioLanguage = reader.ReadStringArray();
-            if (version >= 2020) //2020.1 and up
+            if (version[0] >= 2020) //2020.1 and up
             {
                 var m_VideoShadersSize = reader.ReadInt32();
-                for (var i = 0; i < m_VideoShadersSize; i++)
+                var m_VideoShaders = new PPtr<Shader>[m_VideoShadersSize];
+                for (int i = 0; i < m_VideoShadersSize; i++)
                 {
-                    var m_VideoShaders = new PPtr<Shader>(reader);
+                    m_VideoShaders[i] = new PPtr<Shader>(reader);
                 }
             }
             m_ExternalResources = new StreamedResource(reader);
             m_HasSplitAlpha = reader.ReadBoolean();
-            if (version >= 2020) //2020.1 and up
+            if (version[0] >= 2020) //2020.1 and up
             {
                 var m_sRGB = reader.ReadBoolean();
             }

AssetStudio/CommonString.cs

@@ -114,8 +114,7 @@ namespace AssetStudio
             {1121, "m_PrefabInstance"},
             {1138, "m_PrefabAsset"},
             {1152, "FileSize"},
-            {1161, "Hash128"},
-            {1169, "RenderingLayerMask"},
+            {1161, "Hash128"}
         };
     }
 }

AssetStudio/CubismMoc.cs

@@ -1,133 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-
-namespace AssetStudio
-{
-    public enum CubismSDKVersion : byte
-    {
-        V30 = 1,
-        V33,
-        V40,
-        V42,
-        V50
-    }
-
-    public sealed class CubismMoc : IDisposable
-    {
-        public CubismSDKVersion Version { get; }
-        public string VersionDescription { get; }
-        public float CanvasWidth { get; }
-        public float CanvasHeight { get; }
-        public float CentralPosX { get; }
-        public float CentralPosY { get; }
-        public float PixelPerUnit { get; }
-        public uint PartCount { get; }
-        public uint ParamCount { get; }
-        public HashSet<string> PartNames { get; }
-        public HashSet<string> ParamNames { get; }
-        
-        private byte[] modelData;
-        private int modelDataSize;
-        private bool isBigEndian;
-
-        public CubismMoc(MonoBehaviour moc)
-        {
-            var reader = moc.reader;
-            reader.Reset();
-            reader.Position += 28; //PPtr<GameObject> m_GameObject, m_Enabled, PPtr<MonoScript>
-            reader.ReadAlignedString(); //m_Name
-            modelDataSize = (int)reader.ReadUInt32();
-            modelData = BigArrayPool<byte>.Shared.Rent(modelDataSize);
-            _ = reader.Read(modelData, 0, modelDataSize);
-
-            var sdkVer = modelData[4];
-            if (Enum.IsDefined(typeof(CubismSDKVersion), sdkVer))
-            {
-                Version = (CubismSDKVersion)sdkVer;
-                VersionDescription = ParseVersion();
-            }
-            else
-            {
-                var msg = $"Unknown SDK version ({sdkVer})";
-                VersionDescription = msg;
-                Version = 0;
-                Logger.Warning($"Live2D model \"{moc.m_Name}\": " + msg);
-                return;
-            }
-            isBigEndian = BitConverter.ToBoolean(modelData, 5);
-
-            var modelDataSpan = new ReadOnlySpan<byte>(modelData, 0, modelDataSize);
-            //offsets
-            var countInfoTableOffset = (int)modelDataSpan.ReadUInt32(64, isBigEndian);
-            var canvasInfoOffset = (int)modelDataSpan.ReadUInt32(68, isBigEndian);
-            var partIdsOffset = modelDataSpan.ReadUInt32(76, isBigEndian);
-            var parameterIdsOffset = modelDataSpan.ReadUInt32(264, isBigEndian);
-
-            //canvas
-            PixelPerUnit = modelDataSpan.ReadSingle(canvasInfoOffset, isBigEndian);
-            CentralPosX = modelDataSpan.ReadSingle(canvasInfoOffset + 4, isBigEndian);
-            CentralPosY = modelDataSpan.ReadSingle(canvasInfoOffset + 8, isBigEndian);
-            CanvasWidth = modelDataSpan.ReadSingle(canvasInfoOffset + 12, isBigEndian);
-            CanvasHeight = modelDataSpan.ReadSingle(canvasInfoOffset + 16, isBigEndian);
-
-            //model
-            PartCount = modelDataSpan.ReadUInt32(countInfoTableOffset, isBigEndian);
-            ParamCount = modelDataSpan.ReadUInt32(countInfoTableOffset + 20, isBigEndian);
-            PartNames = ReadMocStrings(modelDataSpan, (int)partIdsOffset, (int)PartCount);
-            ParamNames = ReadMocStrings(modelDataSpan, (int)parameterIdsOffset, (int)ParamCount);
-        }
-
-        public void SaveMoc3(string savePath)
-        {
-            if (!savePath.EndsWith(".moc3"))
-                savePath += ".moc3";
-
-            using (var file = File.OpenWrite(savePath))
-            {
-                file.Write(modelData, 0, modelDataSize);
-            }
-        }
-
-        private string ParseVersion()
-        {
-            switch (Version)
-            {
-                case CubismSDKVersion.V30: return "SDK3.0/Cubism3.0(3.2)";
-                case CubismSDKVersion.V33: return "SDK3.3/Cubism3.3";
-                case CubismSDKVersion.V40: return "SDK4.0/Cubism4.0";
-                case CubismSDKVersion.V42: return "SDK4.2/Cubism4.2";
-                case CubismSDKVersion.V50: return "SDK5.0/Cubism5.0";
-                default: return "";
-            }
-        }
-
-        private static HashSet<string> ReadMocStrings(ReadOnlySpan<byte> data, int index, int count)
-        {
-            const int strLen = 64;
-            var strHashSet = new HashSet<string>();
-            for (var i = 0; i < count; i++)
-            {
-                if (index + i * strLen <= data.Length)
-                {
-                    var str = data.Slice(index + i * strLen, strLen).ReadStringToNull();
-                    strHashSet.Add(str);
-                }
-            }
-            return strHashSet;
-        }
-
-        private void Dispose(bool disposing)
-        {
-            if (disposing)
-            {
-                BigArrayPool<byte>.Shared.Return(modelData, clearArray: true);
-            }
-        }
-
-        public void Dispose()
-        {
-            Dispose(true);
-        }
-    }
-}

AssetStudio/CubismModel.cs

@@ -1,31 +0,0 @@
-using System.Collections.Generic;
-
-namespace AssetStudio
-{
-    public class CubismModel
-    {
-        public string Name { get; set; }
-        public string Container { get; set; }
-        public MonoBehaviour CubismModelMono { get; set; }
-        public MonoBehaviour PhysicsController { get; set; }
-        public MonoBehaviour FadeController { get; set; }
-        public MonoBehaviour ExpressionController { get; set; }
-        public List<MonoBehaviour> RenderTextureList { get; set; }
-        public List<MonoBehaviour> ParamDisplayInfoList { get; set; }
-        public List<MonoBehaviour> PartDisplayInfoList { get; set; }
-        public List<MonoBehaviour> PosePartList { get; set; }
-        public List<AnimationClip> ClipMotionList { get; set; }
-        public GameObject ModelGameObject { get; set; }
-
-        public CubismModel(GameObject m_GameObject)
-        {
-            Name = m_GameObject.m_Name;
-            ModelGameObject = m_GameObject;
-            RenderTextureList = new List<MonoBehaviour>();
-            ParamDisplayInfoList = new List<MonoBehaviour>();
-            PartDisplayInfoList = new List<MonoBehaviour>();
-            PosePartList = new List<MonoBehaviour>();
-            ClipMotionList = new List<AnimationClip>();
-        }
-    }
-}

AssetStudio/CustomOptions/Asmo/OptionsFile.cs

@@ -1,56 +0,0 @@
-using System;
-using System.Buffers.Binary;
-
-namespace AssetStudio.CustomOptions.Asmo
-{
-    public class OptionsFile
-    {
-        private static readonly byte[] OptionsFileSign = new byte[] { 0x41, 0x53, 0x4D, 0x4F }; //ASMO
-        public static readonly string Extension = ".asmo";
-
-        public byte[] Signature { get; private set; } = OptionsFileSign;
-        public short Version { get; private set; } = 1;
-        public short Reserved { get; set; }
-        public uint DataCrc { get; set; }
-        public int DataSize { get; set; }
-        public byte[] Data { get; set; }
-
-        public OptionsFile() { }
-
-        public OptionsFile(EndianBinaryReader reader)
-        {
-            Signature = reader.ReadBytes(4);
-            Version = reader.ReadInt16();
-            Reserved = reader.ReadInt16();
-            DataCrc = reader.ReadUInt32();
-            DataSize = reader.ReadInt32();
-            CheckHeader(reader.BaseStream.Length);
-            Data = reader.ReadBytes(DataSize);
-        }
-
-        public void CheckHeader(long fileLength)
-        {
-            if (!Signature.AsSpan().SequenceEqual(OptionsFileSign))
-                throw new NotSupportedException("Incorrect options file signature.");
-
-            if (Version != 1)
-                throw new NotSupportedException("Incorrect options file version.");
-
-            if (DataSize <= 0 || DataSize > fileLength)
-                throw new NotSupportedException("Incorrect data size.");
-        }
-
-        public byte[] ToByteArray()
-        {
-            var buffer = new byte[16 + DataSize];
-            OptionsFileSign.AsSpan().CopyTo(buffer);
-            BinaryPrimitives.WriteInt16BigEndian(buffer.AsSpan(4), Version);
-            BinaryPrimitives.WriteInt16BigEndian(buffer.AsSpan(6), Reserved);
-            BinaryPrimitives.WriteUInt32BigEndian(buffer.AsSpan(8), DataCrc);
-            BinaryPrimitives.WriteInt32BigEndian(buffer.AsSpan(12), DataSize);
-            Data.AsSpan().CopyTo(buffer.AsSpan(16));
-
-            return buffer;
-        }
-    }
-}

AssetStudio/CustomOptions/CustomBundleOptions.cs

@@ -1,40 +0,0 @@
-namespace AssetStudio.CustomOptions
-{
-    public class CustomBundleOptions
-    {
-        private CompressionType _customBlockCompression = CompressionType.Auto;
-        private CompressionType _customBlockInfoCompression = CompressionType.Auto;
-        private bool _decompressToDisk;
-
-        public ImportOptions Options;
-
-        public CompressionType CustomBlockCompression
-        {
-            get => _customBlockCompression;
-            set => _customBlockCompression = SetOption(nameof(CustomBlockCompression), value);
-        }
-        public CompressionType CustomBlockInfoCompression
-        {
-            get => _customBlockInfoCompression;
-            set => _customBlockInfoCompression = SetOption(nameof(CustomBlockInfoCompression), value);
-        }
-        public bool DecompressToDisk
-        {
-            get => _decompressToDisk;
-            set => _decompressToDisk = SetOption(nameof(DecompressToDisk), value);
-        }
-
-        public CustomBundleOptions() { }
-
-        public CustomBundleOptions(ImportOptions importOptions)
-        {
-            Options = importOptions;
-        }
-
-        private static T SetOption<T>(string option, T value)
-        {
-            Logger.Info($"- {option}: {value}");
-            return value;
-        }
-    }
-}

AssetStudio/CustomOptions/ImportOptions.cs

@@ -1,94 +0,0 @@
-using AssetStudio.CustomOptions.Asmo;
-using SevenZip;
-using System;
-using System.IO;
-using System.Text;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio.CustomOptions
-{
-    public class ImportOptions
-    {
-        private static JsonSerializerOptions jsonOptions;
-        private static string fileName = "ImportOptions";
-        private UnityVersion _customUnityVer;
-
-        public CustomBundleOptions BundleOptions { get; set; }
-        public UnityVersion CustomUnityVersion { get => _customUnityVer; set => SetUnityVersion(value); }
-
-        static ImportOptions()
-        {
-            jsonOptions = new JsonSerializerOptions
-            {
-                ReferenceHandler = ReferenceHandler.Preserve,
-                IncludeFields = true,
-            };
-        }
-
-        public ImportOptions()
-        {
-            BundleOptions = new CustomBundleOptions(this);
-            CustomUnityVersion = null;
-        }
-
-        public static ImportOptions FromOptionsFile(OptionsFile optionsFile)
-        {
-            if (optionsFile.Reserved != 0)
-            {
-                Logger.Debug("Skipped. Not an import options file.");
-                return null;
-            }
-
-            var utf8Bytes = Convert.FromBase64String(Encoding.ASCII.GetString(optionsFile.Data));
-            var dataCrc = CRC.CalculateDigest(utf8Bytes, 0, (uint)utf8Bytes.Length);
-            if (optionsFile.DataCrc != dataCrc)
-                throw new IOException("Options file data is corrupted.");
-
-            return JsonSerializer.Deserialize<ImportOptions>(utf8Bytes, jsonOptions);
-        }
-
-        public void SaveToFile(string outputFolder)
-        {
-            var utf8Bytes = JsonSerializer.SerializeToUtf8Bytes(this, jsonOptions);
-            var dataCrc = CRC.CalculateDigest(utf8Bytes, 0, (uint)utf8Bytes.Length);
-            var base64String = Convert.ToBase64String(utf8Bytes);
-
-            var optionsFile = new OptionsFile
-            {
-                DataCrc = dataCrc,
-                DataSize = base64String.Length,
-                Data = Encoding.ASCII.GetBytes(base64String),
-            };
-
-            var unityVer = _customUnityVer != null
-                ? $"_{_customUnityVer}"
-                : "";
-            var path = Path.Combine(outputFolder, $"{fileName}{unityVer}{OptionsFile.Extension}");
-            File.WriteAllBytes(path, optionsFile.ToByteArray());
-
-            Logger.Info($"Options file saved to \"{path}\"");
-        }
-
-        private void SetUnityVersion(UnityVersion value)
-        {
-            if (_customUnityVer == value)
-                return;
-            if (value == null)
-            {
-                _customUnityVer = null;
-                Logger.Info("- Specified Unity version: None");
-                return;
-            }
-            if (string.IsNullOrEmpty(value.BuildType))
-            {
-                throw new NotSupportedException("Specified Unity version is not in a correct format.\n" +
-                                                "Specify full Unity version, including letters at the end.\n" +
-                                                "Example: 2017.4.39f1");
-            }
-            _customUnityVer = value;
-
-            Logger.Info($"- Specified Unity version: {_customUnityVer}");
-        }
-    }
-}

AssetStudio/EndianBinaryReader.cs

@@ -82,13 +82,12 @@ namespace AssetStudio
             return base.ReadUInt64();
         }
 
-#if NETFRAMEWORK
         public override float ReadSingle()
         {
             if (Endian == EndianType.BigEndian)
             {
                 Read(buffer, 0, 4);
-                buffer.AsSpan(0, 4).Reverse();
+                Array.Reverse(buffer, 0, 4);
                 return BitConverter.ToSingle(buffer, 0);
             }
             return base.ReadSingle();
@@ -99,31 +98,10 @@ namespace AssetStudio
             if (Endian == EndianType.BigEndian)
             {
                 Read(buffer, 0, 8);
-                buffer.AsSpan().Reverse();
+                Array.Reverse(buffer);
                 return BitConverter.ToDouble(buffer, 0);
             }
             return base.ReadDouble();
         }
-#else
-        public override float ReadSingle()
-        {
-            if (Endian == EndianType.BigEndian)
-            {
-                Read(buffer, 0, 4);
-                return BinaryPrimitives.ReadSingleBigEndian(buffer);
-            }
-            return base.ReadSingle();
-        }
-
-        public override double ReadDouble()
-        {
-            if (Endian == EndianType.BigEndian)
-            {
-                Read(buffer, 0, 8);
-                return BinaryPrimitives.ReadDoubleBigEndian(buffer);
-            }
-            return base.ReadDouble();
-        }
-#endif
     }
 }

AssetStudio/EndianSpanReader.cs

@@ -1,95 +0,0 @@
-using System;
-using System.Buffers.Binary;
-using System.Text;
-
-namespace AssetStudio
-{
-    public static class EndianSpanReader
-    {
-        public static uint ReadUInt32(this Span<byte> data, int start, bool isBigEndian)
-        {
-            return ReadUInt32((ReadOnlySpan<byte>)data, start, isBigEndian);
-        }
-
-        public static uint ReadUInt32(this ReadOnlySpan<byte> data, int start, bool isBigEndian)
-        {
-            return isBigEndian
-                ? BinaryPrimitives.ReadUInt32BigEndian(data.Slice(start))
-                : BinaryPrimitives.ReadUInt32LittleEndian(data.Slice(start));
-        }
-
-        public static long ReadUInt16(this Span<byte> data, int start, bool isBigEndian)
-        {
-            return ReadUInt16((ReadOnlySpan<byte>)data, start, isBigEndian);
-        }
-
-        public static uint ReadUInt16(this ReadOnlySpan<byte> data, int start, bool isBigEndian)
-        {
-            return isBigEndian
-                ? BinaryPrimitives.ReadUInt16BigEndian(data.Slice(start))
-                : BinaryPrimitives.ReadUInt16LittleEndian(data.Slice(start));
-        }
-
-        public static long ReadInt64(this Span<byte> data, int start, bool isBigEndian)
-        {
-            return ReadInt64((ReadOnlySpan<byte>)data, start, isBigEndian);
-        }
-
-        public static long ReadInt64(this ReadOnlySpan<byte> data, int start, bool isBigEndian)
-        {
-            return isBigEndian
-                ? BinaryPrimitives.ReadInt64BigEndian(data.Slice(start))
-                : BinaryPrimitives.ReadInt64LittleEndian(data.Slice(start));
-        }
-
-        public static float ReadSingle(this Span<byte> data, int start, bool isBigEndian)
-        {
-            return ReadSingle((ReadOnlySpan<byte>)data, start, isBigEndian);
-        }
-
-#if NETFRAMEWORK
-        public static float ReadSingle(this ReadOnlySpan<byte> data, int start, bool isBigEndian)
-        {
-            var bytes = data.Slice(start, 4).ToArray();
-            if ((isBigEndian && BitConverter.IsLittleEndian) || (!isBigEndian && !BitConverter.IsLittleEndian))
-                bytes.AsSpan().Reverse();
-
-            return BitConverter.ToSingle(bytes, 0);
-        }
-#else
-        public static float ReadSingle(this ReadOnlySpan<byte> data, int start, bool isBigEndian)
-        {
-            return isBigEndian
-                ? BinaryPrimitives.ReadSingleBigEndian(data[start..])
-                : BinaryPrimitives.ReadSingleLittleEndian(data[start..]);
-        }
-#endif
-
-        public static string ReadStringToNull(this Span<byte> data, int maxLength = 32767)
-        {
-            return ReadStringToNull((ReadOnlySpan<byte>)data, maxLength);
-        }
-
-        public static string ReadStringToNull(this ReadOnlySpan<byte> data, int maxLength = 32767)
-        {
-            Span<byte> bytes = stackalloc byte[maxLength];
-            var count = 0;
-            while (count != data.Length && count < maxLength)
-            {
-                var b = data[count];
-                if (b == 0)
-                {
-                    break;
-                }
-                bytes[count] = b;
-                count++;
-            }
-            bytes = bytes.Slice(0, count);
-#if NETFRAMEWORK
-            return Encoding.UTF8.GetString(bytes.ToArray());
-#else
-            return Encoding.UTF8.GetString(bytes);
-#endif
-        }
-    }
-}

AssetStudio/Extensions/BinaryReaderExtensions.cs

@@ -1,14 +1,18 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Runtime.InteropServices;
 using System.Text;
 
 namespace AssetStudio
 {
     public static class BinaryReaderExtensions
     {
-        public static void AlignStream(this BinaryReader reader, int alignment = 4)
+        public static void AlignStream(this BinaryReader reader)
+        {
+            reader.AlignStream(4);
+        }
+
+        public static void AlignStream(this BinaryReader reader, int alignment)
         {
             var pos = reader.BaseStream.Position;
             var mod = pos % alignment;
@@ -21,13 +25,11 @@ namespace AssetStudio
         public static string ReadAlignedString(this BinaryReader reader)
         {
             var length = reader.ReadInt32();
-            if (length > reader.BaseStream.Length - reader.BaseStream.Position)
-                throw new EndOfStreamException();
-            if (length > 0)
+            if (length > 0 && length <= reader.BaseStream.Length - reader.BaseStream.Position)
             {
                 var stringData = reader.ReadBytes(length);
                 var result = Encoding.UTF8.GetString(stringData);
-                reader.AlignStream();
+                reader.AlignStream(4);
                 return result;
             }
             return "";
@@ -38,7 +40,7 @@ namespace AssetStudio
             if (encoding?.CodePage == 1200) //Unicode (UTF-16LE)
                 return reader.ReadUnicodeStringToNull(maxLength * 2);
 
-            Span<byte> bytes = stackalloc byte[maxLength];
+            var bytes = new List<byte>();
             var count = 0;
             while (reader.BaseStream.Position != reader.BaseStream.Length && count < maxLength)
             {
@@ -47,15 +49,10 @@ namespace AssetStudio
                 {
                     break;
                 }
-                bytes[count] = b;
+                bytes.Add(b);
                 count++;
             }
-            bytes = bytes.Slice(0, count);
-#if NETFRAMEWORK
             return encoding?.GetString(bytes.ToArray()) ?? Encoding.UTF8.GetString(bytes.ToArray());
-#else
-            return encoding?.GetString(bytes) ?? Encoding.UTF8.GetString(bytes);
-#endif
         }
 
         private static string ReadUnicodeStringToNull(this BinaryReader reader, int maxLength)
@@ -100,22 +97,24 @@ namespace AssetStudio
             return new Color(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
         }
 
-        private static T[] ReadArray<T>(BinaryReader reader, int byteLen) where T : struct
+        public static Matrix4x4 ReadMatrix(this BinaryReader reader)
         {
-            if (byteLen < 0)
-                throw new ArgumentOutOfRangeException(nameof(byteLen));
-            if (reader.BaseStream.Position + byteLen > reader.BaseStream.Length)
-                throw new EndOfStreamException();
-            
-            var bytes = reader.ReadBytes(byteLen);
+            return new Matrix4x4(reader.ReadSingleArray(16));
+        }
 
-            var span = MemoryMarshal.Cast<byte, T>(bytes);
-            return span.ToArray();
+        private static T[] ReadArray<T>(Func<T> del, int length)
+        {
+            var array = new T[length];
+            for (int i = 0; i < length; i++)
+            {
+                array[i] = del();
+            }
+            return array;
         }
 
         public static bool[] ReadBooleanArray(this BinaryReader reader)
         {
-            return ReadArray<bool>(reader, reader.ReadInt32());
+            return ReadArray(reader.ReadBoolean, reader.ReadInt32());
         }
 
         public static byte[] ReadUInt8Array(this BinaryReader reader)
@@ -125,65 +124,62 @@ namespace AssetStudio
 
         public static ushort[] ReadUInt16Array(this BinaryReader reader)
         {
-            return ReadArray<ushort>(reader, reader.ReadInt32() * 2);
+            return ReadArray(reader.ReadUInt16, reader.ReadInt32());
         }
 
-        public static int[] ReadInt32Array(this BinaryReader reader, int length = -1)
+        public static int[] ReadInt32Array(this BinaryReader reader)
         {
-            if (length == -1)
-                length = reader.ReadInt32();
-            return ReadArray<int>(reader, length * 4);
+            return ReadArray(reader.ReadInt32, reader.ReadInt32());
         }
 
-        public static uint[] ReadUInt32Array(this BinaryReader reader, int length = -1)
+        public static int[] ReadInt32Array(this BinaryReader reader, int length)
         {
-            if (length == -1)
-                length = reader.ReadInt32();
-            return ReadArray<uint>(reader, length * 4);
+            return ReadArray(reader.ReadInt32, length);
+        }
+
+        public static uint[] ReadUInt32Array(this BinaryReader reader)
+        {
+            return ReadArray(reader.ReadUInt32, reader.ReadInt32());
         }
 
         public static uint[][] ReadUInt32ArrayArray(this BinaryReader reader)
         {
-            var length = reader.ReadInt32();
-            var list = new List<uint[]>();
-            for (var i = 0; i < length; i++)
-            {
-                list.Add(ReadArray<uint>(reader, reader.ReadInt32() * 4));
-            }
-            return list.ToArray();
+            return ReadArray(reader.ReadUInt32Array, reader.ReadInt32());
         }
 
-        public static float[] ReadSingleArray(this BinaryReader reader, int length = -1)
+        public static uint[] ReadUInt32Array(this BinaryReader reader, int length)
         {
-            if (length == -1)
-                length = reader.ReadInt32();
-            return ReadArray<float>(reader, length * 4);
+            return ReadArray(reader.ReadUInt32, length);
+        }
+
+        public static float[] ReadSingleArray(this BinaryReader reader)
+        {
+            return ReadArray(reader.ReadSingle, reader.ReadInt32());
+        }
+
+        public static float[] ReadSingleArray(this BinaryReader reader, int length)
+        {
+            return ReadArray(reader.ReadSingle, length);
         }
 
         public static string[] ReadStringArray(this BinaryReader reader)
         {
-            var length = reader.ReadInt32();
-            var list = new List<string>();
-            for (var i = 0; i < length; i++)
-            {
-                list.Add(reader.ReadAlignedString());
-            }
-            return list.ToArray();
+            return ReadArray(reader.ReadAlignedString, reader.ReadInt32());
         }
 
         public static Vector2[] ReadVector2Array(this BinaryReader reader)
         {
-            return ReadArray<Vector2>(reader, reader.ReadInt32() * 8);
+            return ReadArray(reader.ReadVector2, reader.ReadInt32());
         }
 
         public static Vector4[] ReadVector4Array(this BinaryReader reader)
         {
-            return ReadArray<Vector4>(reader, reader.ReadInt32() * 16);
+            return ReadArray(reader.ReadVector4, reader.ReadInt32());
         }
 
         public static Matrix4x4[] ReadMatrixArray(this BinaryReader reader)
         {
-            return ReadArray<Matrix4x4>(reader, reader.ReadInt32() * 64);
+            return ReadArray(reader.ReadMatrix, reader.ReadInt32());
         }
     }
 }

AssetStudio/FileReader.cs

@@ -1,5 +1,5 @@
-using System;
-using System.IO;
+using System.IO;
+using System.Linq;
 
 namespace AssetStudio
 {
@@ -13,9 +13,6 @@ namespace AssetStudio
         private static readonly byte[] brotliMagic = { 0x62, 0x72, 0x6F, 0x74, 0x6C, 0x69 };
         private static readonly byte[] zipMagic = { 0x50, 0x4B, 0x03, 0x04 };
         private static readonly byte[] zipSpannedMagic = { 0x50, 0x4B, 0x07, 0x08 };
-        private static readonly byte[] unityFsMagic = {0x55, 0x6E, 0x69, 0x74, 0x79, 0x46, 0x53, 0x00};
-        private static readonly int headerBuffLen = 1152;
-        private static byte[] headerBuff = new byte[headerBuffLen];
 
         public FileReader(string path) : this(path, File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) { }
 
@@ -28,117 +25,78 @@ namespace AssetStudio
 
         private FileType CheckFileType()
         {
-            var buff = headerBuff.AsSpan();
-            buff.Clear();
-            var dataLen = Read(headerBuff, 0, headerBuffLen);
+            var signature = this.ReadStringToNull(20);
             Position = 0;
-
-            var signature = buff.ReadStringToNull(20);
             switch (signature)
             {
                 case "UnityWeb":
                 case "UnityRaw":
                 case "UnityArchive":
                 case "UnityFS":
-                    CheckBundleDataOffset(buff);
                     return FileType.BundleFile;
                 case "UnityWebData1.0":
-                case "TuanjieWebData1.0":
                     return FileType.WebFile;
                 default:
-                {
-                    var magic = Span<byte>.Empty;
-
-                    magic = dataLen > 2 ? buff.Slice(0, 2) : magic;
-                    if (magic.SequenceEqual(gzipMagic))
                     {
-                        return FileType.GZipFile;
+                        byte[] magic = ReadBytes(2);
+                        Position = 0;
+                        if (gzipMagic.SequenceEqual(magic))
+                        {
+                            return FileType.GZipFile;
+                        }
+                        Position = 0x20;
+                        magic = ReadBytes(6);
+                        Position = 0;
+                        if (brotliMagic.SequenceEqual(magic))
+                        {
+                            return FileType.BrotliFile;
+                        }
+                        if (IsSerializedFile())
+                        {
+                            return FileType.AssetsFile;
+                        }
+                        magic = ReadBytes(4);
+                        Position = 0;
+                        if (zipMagic.SequenceEqual(magic) || zipSpannedMagic.SequenceEqual(magic))
+                            return FileType.ZipFile;
+                        return FileType.ResourceFile;
                     }
-
-                    magic = dataLen > 38 ? buff.Slice(32, 6) : magic;
-                    if (magic.SequenceEqual(brotliMagic))
-                    {
-                        return FileType.BrotliFile;
-                    }
-
-                    if (IsSerializedFile(buff))
-                    {
-                        return FileType.AssetsFile;
-                    }
-
-                    magic = dataLen > 4 ? buff.Slice(0, 4): magic;
-                    if (magic.SequenceEqual(zipMagic) || magic.SequenceEqual(zipSpannedMagic))
-                    {
-                        return FileType.ZipFile;
-                    }
-
-                    if (CheckBundleDataOffset(buff))
-                    {
-                        return FileType.BundleFile;
-                    }
-
-                    return FileType.ResourceFile;
-                }
             }
         }
 
-        private bool IsSerializedFile(ReadOnlySpan<byte> buff)
+        private bool IsSerializedFile()
         {
             var fileSize = BaseStream.Length;
             if (fileSize < 20)
             {
                 return false;
             }
-            var isBigEndian = Endian == EndianType.BigEndian;
-
-            //var m_MetadataSize = buff.ReadUInt32(0, isBigEndian);
-            long m_FileSize = buff.ReadUInt32(4, isBigEndian);
-            var m_Version = buff.ReadUInt32(8, isBigEndian);
-            long m_DataOffset = buff.ReadUInt32(12, isBigEndian);
-            //var m_Endianess = buff[16];
-            //var m_Reserved = buff.Slice(17, 3);
+            var m_MetadataSize = ReadUInt32();
+            long m_FileSize = ReadUInt32();
+            var m_Version = ReadUInt32();
+            long m_DataOffset = ReadUInt32();
+            var m_Endianess = ReadByte();
+            var m_Reserved = ReadBytes(3);
             if (m_Version >= 22)
             {
                 if (fileSize < 48)
                 {
+                    Position = 0;
                     return false;
                 }
-                //m_MetadataSize = buff.ReadUInt32(20, isBigEndian);
-                m_FileSize = buff.ReadInt64(24, isBigEndian);
-                m_DataOffset = buff.ReadInt64(32, isBigEndian);
+                m_MetadataSize = ReadUInt32();
+                m_FileSize = ReadInt64();
+                m_DataOffset = ReadInt64();
             }
-            if (m_FileSize != fileSize || m_DataOffset > fileSize)
+            Position = 0;
+            if (m_FileSize != fileSize)
             {
                 return false;
             }
-           
-            return true;
-        }
-
-        private bool CheckBundleDataOffset(ReadOnlySpan<byte> buff)
-        {
-            var lastOffset = buff.LastIndexOf(unityFsMagic);
-            if (lastOffset <= 0)
+            if (m_DataOffset > fileSize)
+            {
                 return false;
-
-            var firstOffset = buff.IndexOf(unityFsMagic);
-            if (firstOffset == lastOffset || lastOffset - firstOffset < 200)
-            {
-                Position = lastOffset;
-                return true;
             }
-
-            var pos = firstOffset + 12;
-            pos += buff.Slice(pos).ReadStringToNull().Length + 1;
-            pos += buff.Slice(pos).ReadStringToNull().Length + 1;
-            var bundleSize = buff.ReadInt64(pos, Endian == EndianType.BigEndian);
-            if (bundleSize > 200 && firstOffset + bundleSize < lastOffset)
-            {
-                Position = firstOffset;
-                return true;
-            }
-
-            Position = lastOffset;
             return true;
         }
     }

AssetStudio/FileType.cs

@@ -1,4 +1,10 @@
-namespace AssetStudio
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AssetStudio
 {
     public enum FileType
     {

AssetStudio/ImportHelper.cs

@@ -68,7 +68,7 @@ namespace AssetStudio
             }
             catch (System.Exception e)
             {
-                Logger.Warning($"Error while decompressing Gzip file {reader.FullPath}\n{e}");
+                Logger.Warning($"Error while decompressing gzip file {reader.FullPath}\r\n{e}");
                 reader.Dispose();
                 return null;
             }
@@ -76,24 +76,15 @@ namespace AssetStudio
 
         public static FileReader DecompressBrotli(FileReader reader)
         {
-            try
+            using (reader)
             {
-                using (reader)
+                var stream = new MemoryStream();
+                using (var brotliStream = new BrotliInputStream(reader.BaseStream))
                 {
-                    var stream = new MemoryStream();
-                    using (var brotliStream = new BrotliInputStream(reader.BaseStream))
-                    {
-                        brotliStream.CopyTo(stream);
-                    }
-                    stream.Position = 0;
-                    return new FileReader(reader.FullPath, stream);
+                    brotliStream.CopyTo(stream);
                 }
-            }
-            catch (System.Exception e)
-            {
-                Logger.Warning($"Error while decompressing Brotli file {reader.FullPath}\n{e}");
-                reader.Dispose();
-                return null;
+                stream.Position = 0;
+                return new FileReader(reader.FullPath, stream);
             }
         }
     }

AssetStudio/JsonConverterHelpers/ByteArrayConverter.cs

@@ -1,25 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public static partial class JsonConverterHelper
-    {
-        public class ByteArrayConverter : JsonConverter<byte[]>
-        {
-            public override byte[] Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-            {
-                return reader.TokenType == JsonTokenType.StartArray
-                    ? JsonSerializer.Deserialize<List<byte>>(ref reader).ToArray() //JsonArray to ByteArray
-                    : JsonSerializer.Deserialize<byte[]>(ref reader);
-            }
-
-            public override void Write(Utf8JsonWriter writer, byte[] value, JsonSerializerOptions options)
-            {
-                writer.WriteBase64StringValue(value);
-            }
-        }
-    }
-}

AssetStudio/JsonConverterHelpers/FloatConverter.cs

@@ -1,40 +0,0 @@
-using System;
-using System.Globalization;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public static partial class JsonConverterHelper
-    {
-        public class FloatConverter : JsonConverter<float>
-        {
-            public override float Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-            {
-                return JsonSerializer.Deserialize<float>(ref reader, new JsonSerializerOptions
-                {
-                    NumberHandling = options.NumberHandling
-                });
-            }
-
-            public override void Write(Utf8JsonWriter writer, float value, JsonSerializerOptions options)
-            {
-                if (float.IsNaN(value) || float.IsInfinity(value))
-                {
-                    if (options.NumberHandling == JsonNumberHandling.AllowNamedFloatingPointLiterals)
-                    {
-                        writer.WriteStringValue($"{value.ToString(CultureInfo.InvariantCulture)}");
-                    }
-                    else
-                    {
-                        writer.WriteStringValue(JsonSerializer.Serialize(value));
-                    }
-                }
-                else
-                {
-                    writer.WriteNumberValue((decimal)value + 0.0m);
-                }
-            }
-        }
-    }
-}

AssetStudio/JsonConverterHelpers/KVPConverter.cs

@@ -1,53 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public static partial class JsonConverterHelper
-    {
-        public class KVPConverter : JsonConverterFactory
-        {
-            public override bool CanConvert(Type typeToConvert)
-            {
-                if (!typeToConvert.IsGenericType)
-                    return false;
-
-                var generic = typeToConvert.GetGenericTypeDefinition();
-                return generic == typeof(KeyValuePair<,>);
-            }
-
-            public override JsonConverter CreateConverter(Type type, JsonSerializerOptions options)
-            {
-                var kvpArgs = type.GetGenericArguments();
-                return (JsonConverter)Activator.CreateInstance(typeof(KVPConverter<,>).MakeGenericType(kvpArgs));
-            }
-        }
-
-        private class KVPConverter<TKey, TValue> : JsonConverter<KeyValuePair<TKey, TValue>>
-        {
-            public override KeyValuePair<TKey, TValue> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-            {
-                //startKvpObject
-                reader.Read(); //propName
-                reader.Read(); //keyType
-                var key = reader.TokenType == JsonTokenType.StartObject
-                    ? JsonSerializer.Deserialize<Dictionary<string, TKey>>(ref reader).Values.First()
-                    : JsonSerializer.Deserialize<TKey>(ref reader);
-                reader.Read(); //propName
-                reader.Read(); //startObject
-                var value = JsonSerializer.Deserialize<TValue>(ref reader, options);
-                reader.Read(); //endKvpObject
-
-                return new KeyValuePair<TKey, TValue>(key, value);
-            }
-
-            public override void Write(Utf8JsonWriter writer, KeyValuePair<TKey, TValue> value, JsonSerializerOptions options)
-            {
-                throw new NotImplementedException();
-            }
-        }
-    }
-}

AssetStudio/JsonConverterHelpers/PPtrConverter.cs

@@ -1,45 +0,0 @@
-using System;
-using System.Text.Json;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public static partial class JsonConverterHelper
-    {
-        public static SerializedFile AssetsFile { get; set; }
-
-        public class PPtrConverter : JsonConverterFactory
-        {
-            public override bool CanConvert(Type typeToConvert)
-            {
-                if (!typeToConvert.IsGenericType)
-                    return false;
-
-                var generic = typeToConvert.GetGenericTypeDefinition();
-                return generic == typeof(PPtr<>);
-            }
-
-            public override JsonConverter CreateConverter(Type type, JsonSerializerOptions options)
-            {
-                var elementType = type.GetGenericArguments()[0];
-                var converter = (JsonConverter)Activator.CreateInstance(typeof(PPtrConverter<>).MakeGenericType(elementType));
-                return converter;
-            }
-        }
-
-        private class PPtrConverter<T> : JsonConverter<PPtr<T>> where T : Object
-        {
-            public override PPtr<T> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-            {
-                var pptrObj = JsonSerializer.Deserialize<PPtr<T>>(ref reader, new JsonSerializerOptions { IncludeFields = true });
-                pptrObj.AssetsFile = AssetsFile;
-                return pptrObj;
-            }
-
-            public override void Write(Utf8JsonWriter writer, PPtr<T> value, JsonSerializerOptions options)
-            {
-                throw new NotImplementedException();
-            }
-        }
-    }
-}

AssetStudio/JsonConverterHelpers/RenderDataMapConverter.cs

@@ -1,58 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text.Json;
-using System.Text.Json.Nodes;
-using System.Text.Json.Serialization;
-
-namespace AssetStudio
-{
-    public static partial class JsonConverterHelper
-    {
-        public class RenderDataMapConverter : JsonConverter<Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData>>
-        {
-            public override Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData> Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
-            {
-                var dataArray = JsonSerializer.Deserialize<KeyValuePair<JsonObject, SpriteAtlasData>[]>(ref reader, options);
-                var renderDataMap = new Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData>(dataArray.Length);
-                foreach (var kvp in dataArray)
-                {
-                    var jsonFirst = kvp.Key["first"];
-                    var first = jsonFirst.Deserialize<GUID>(options).Convert();
-                    var second = (long) kvp.Key["second"];
-                    renderDataMap.Add(new KeyValuePair<Guid, long>(first, second), kvp.Value);
-                }
-                return renderDataMap;
-            }
-
-            public override void Write(Utf8JsonWriter writer, Dictionary<KeyValuePair<Guid, long>, SpriteAtlasData> value, JsonSerializerOptions options)
-            {
-                var jsonDict = new Dictionary<string, SpriteAtlasData>();
-                foreach (var kv in value)
-                {
-                    var strKey = $"{kv.Key.Key}, {kv.Key.Value}";
-                    jsonDict.Add(strKey, kv.Value);
-                }
-                var strValue = JsonSerializer.SerializeToUtf8Bytes(jsonDict, options);
-                writer.WriteRawValue(strValue);
-            }
-        }
-
-        private class GUID
-        {
-            [JsonPropertyName("data[0]")] public uint data0 { get; set; }
-            [JsonPropertyName("data[1]")] public uint data1 { get; set; }
-            [JsonPropertyName("data[2]")] public uint data2 { get; set; }
-            [JsonPropertyName("data[3]")] public uint data3 { get; set; }
-
-            public Guid Convert()
-            {
-                var guidBytes = new byte[16];
-                BitConverter.GetBytes(data0).CopyTo(guidBytes, 0);
-                BitConverter.GetBytes(data1).CopyTo(guidBytes, 4);
-                BitConverter.GetBytes(data2).CopyTo(guidBytes, 8);
-                BitConverter.GetBytes(data3).CopyTo(guidBytes, 12);
-                return new Guid(guidBytes);
-            }
-        }
-    }
-}

AssetStudio/LZ4/LZ4.cs

@@ -0,0 +1,75 @@
+using System;
+
+namespace AssetStudio
+{
+    public class LZ4
+    {
+        public static LZ4 Instance => new LZ4();
+
+        public virtual int Decompress(ReadOnlySpan<byte> cmp, Span<byte> dec)
+        {
+            int cmpPos = 0;
+            int decPos = 0;
+
+            do
+            {
+                var (encCount, litCount) = GetLiteralToken(cmp, ref cmpPos);
+
+                //Copy literal chunk
+                litCount = GetLength(litCount, cmp, ref cmpPos);
+
+                cmp.Slice(cmpPos, litCount).CopyTo(dec.Slice(decPos));
+
+                cmpPos += litCount;
+                decPos += litCount;
+
+                if (cmpPos >= cmp.Length)
+                {
+                    break;
+                }
+
+                //Copy compressed chunk
+                int back = GetChunkEnd(cmp, ref cmpPos);
+
+                encCount = GetLength(encCount, cmp, ref cmpPos) + 4;
+
+                int encPos = decPos - back;
+
+                if (encCount <= back)
+                {
+                    dec.Slice(encPos, encCount).CopyTo(dec.Slice(decPos));
+                    decPos += encCount;
+                }
+                else
+                {
+                    while (encCount-- > 0)
+                    {
+                        dec[decPos++] = dec[encPos++];
+                    }
+                }
+            } while (cmpPos < cmp.Length && decPos < dec.Length);
+
+            return decPos;
+        }
+
+        protected virtual (int encCount, int litCount) GetLiteralToken(ReadOnlySpan<byte> cmp, ref int cmpPos) =>
+            ((cmp[cmpPos] >> 0) & 0xf, (cmp[cmpPos++] >> 4) & 0xf);
+
+        protected virtual int GetChunkEnd(ReadOnlySpan<byte> cmp, ref int cmpPos) =>
+            cmp[cmpPos++] << 0 | cmp[cmpPos++] << 8;
+
+        protected virtual int GetLength(int length, ReadOnlySpan<byte> cmp, ref int cmpPos)
+        {
+            byte sum;
+
+            if (length == 0xf)
+            {
+                do
+                {
+                    length += sum = cmp[cmpPos++];
+                } while (sum == 0xff);
+            }
+            return length;
+        }
+    }
+}

AssetStudio/LZ4/LZ4Inv.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace AssetStudio
+{
+    public class LZ4Inv : LZ4
+    {
+        public new static LZ4Inv Instance => new LZ4Inv();
+
+        protected override (int encCount, int litCount) GetLiteralToken(ReadOnlySpan<byte> cmp, ref int cmpPos) =>
+            ((cmp[cmpPos] >> 4) & 0xf, (cmp[cmpPos++] >> 0) & 0xf);
+
+        protected override int GetChunkEnd(ReadOnlySpan<byte> cmp, ref int cmpPos) =>
+            cmp[cmpPos++] << 8 | cmp[cmpPos++] << 0;
+    }
+}

AssetStudio/Math/Clamp.cs

@@ -1,18 +0,0 @@
-using System;
-using System.Runtime.CompilerServices;
-
-namespace AssetStudio
-{
-    public static partial class MathHelper
-    {
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static float Clamp(float value, float minValue, float maxValue)
-        {
-#if NETFRAMEWORK
-            return Math.Max(minValue, Math.Min(value, maxValue));
-#else
-            return Math.Clamp(value, minValue, maxValue);
-#endif
-        }
-    }
-}

AssetStudio/Math/Half.cs

@@ -2,7 +2,6 @@
 using System.Diagnostics;
 using System.Globalization;
 
-#if NETFRAMEWORK
 namespace AssetStudio
 {
     /// <summary>
@@ -36,27 +35,27 @@ namespace AssetStudio
         /// <summary>
         /// Represents the smallest positive System.Half value greater than zero. This field is constant.
         /// </summary>
-        public static readonly Half Epsilon = HalfHelper.ToHalf(0x0001);
+        public static readonly Half Epsilon = Half.ToHalf(0x0001);
         /// <summary>
         /// Represents the largest possible value of System.Half. This field is constant.
         /// </summary>
-        public static readonly Half MaxValue = HalfHelper.ToHalf(0x7bff);
+        public static readonly Half MaxValue = Half.ToHalf(0x7bff);
         /// <summary>
         /// Represents the smallest possible value of System.Half. This field is constant.
         /// </summary>
-        public static readonly Half MinValue = HalfHelper.ToHalf(0xfbff);
+        public static readonly Half MinValue = Half.ToHalf(0xfbff);
         /// <summary>
         /// Represents not a number (NaN). This field is constant.
         /// </summary>
-        public static readonly Half NaN = HalfHelper.ToHalf(0xfe00);
+        public static readonly Half NaN = Half.ToHalf(0xfe00);
         /// <summary>
         /// Represents negative infinity. This field is constant.
         /// </summary>
-        public static readonly Half NegativeInfinity = HalfHelper.ToHalf(0xfc00);
+        public static readonly Half NegativeInfinity = Half.ToHalf(0xfc00);
         /// <summary>
         /// Represents positive infinity. This field is constant.
         /// </summary>
-        public static readonly Half PositiveInfinity = HalfHelper.ToHalf(0x7c00);
+        public static readonly Half PositiveInfinity = Half.ToHalf(0x7c00);
         #endregion
 
         #region Constructors
@@ -64,7 +63,7 @@ namespace AssetStudio
         /// Initializes a new instance of System.Half to the value of the specified single-precision floating-point number.
         /// </summary>
         /// <param name="value">The value to represent as a System.Half.</param>
-        public Half(float value) { this = HalfHelper.ToHalf(value); }
+        public Half(float value) { this = HalfHelper.SingleToHalf(value); }
         /// <summary>
         /// Initializes a new instance of System.Half to the value of the specified 32-bit signed integer.
         /// </summary>
@@ -315,7 +314,7 @@ namespace AssetStudio
         /// </summary>
         /// <param name="value">A System.Half to convert.</param>
         /// <returns>A single-precision floating-point number that represents the converted System.Half.</returns>
-        public static implicit operator float(Half value) { return value.ToSingle(); }
+        public static implicit operator float(Half value) { return (float)HalfHelper.HalfToSingle(value); }
         /// <summary>
         /// Converts a System.Half to a double-precision floating-point number.
         /// </summary>
@@ -509,6 +508,32 @@ namespace AssetStudio
         {
             return value.value;
         }
+        /// <summary>
+        /// Returns a half-precision floating point number converted from two bytes
+        /// at a specified position in a byte array.
+        /// </summary>
+        /// <param name="value">An array of bytes.</param>
+        /// <param name="startIndex">The starting position within value.</param>
+        /// <returns>A half-precision floating point number formed by two bytes beginning at startIndex.</returns>
+        /// <exception cref="System.ArgumentException">
+        /// startIndex is greater than or equal to the length of value minus 1, and is
+        /// less than or equal to the length of value minus 1.
+        /// </exception>
+        /// <exception cref="System.ArgumentNullException">value is null.</exception>
+        /// <exception cref="System.ArgumentOutOfRangeException">startIndex is less than zero or greater than the length of value minus 1.</exception>
+        public static Half ToHalf(byte[] value, int startIndex)
+        {
+            return Half.ToHalf((ushort)BitConverter.ToInt16(value, startIndex));
+        }
+        /// <summary>
+        /// Returns a half-precision floating point number converted from its binary representation.
+        /// </summary>
+        /// <param name="bits">Binary representation of System.Half value</param>
+        /// <returns>A half-precision floating point number formed by its binary representation.</returns>
+        public static Half ToHalf(ushort bits)
+        {
+            return new Half { value = bits };
+        }
 
         /// <summary>
         /// Returns a value indicating the sign of a half-precision floating-point number.
@@ -861,4 +886,3 @@ namespace AssetStudio
         #endregion
     }
 }
-#endif

AssetStudio/Math/HalfHelper.cs

@@ -1,32 +1,18 @@
 using System;
-using System.Buffers.Binary;
 using System.Runtime.InteropServices;
 
 namespace AssetStudio
 {
-#if NET
-    public static class HalfHelper
-    {
-        public static Half ToHalf(ushort bits)
-        {
-            return (Half)bits;
-        }
-
-        public static Half ToHalf(ReadOnlySpan<byte> bytes, int startIndex)
-        {
-            return BinaryPrimitives.ReadHalfLittleEndian(bytes[startIndex..]);
-        }
-    }
-#else
     /// <summary>
     /// Helper class for Half conversions and some low level operations.
+    /// This class is internally used in the Half class.
     /// </summary>
     /// <remarks>
     /// References:
     ///     - Fast Half Float Conversions, Jeroen van der Zijp, link: http://www.fox-toolkit.org/ftp/fasthalffloatconversion.pdf
     /// </remarks>
     [ComVisible(false)]
-    public static class HalfHelper
+    internal static class HalfHelper
     {
         private static uint[] mantissaTable = GenerateMantissaTable();
         private static uint[] exponentTable = GenerateExponentTable();
@@ -183,54 +169,27 @@ namespace AssetStudio
             ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
             return Half.ToHalf(result);
         }*/
-
-        /// <summary>
-        /// Returns a half-precision floating point number converted from two bytes
-        /// at a specified position in a byte array.
-        /// </summary>
-        /// <param name="value">An array of bytes.</param>
-        /// <param name="startIndex">The starting position within value.</param>
-        /// <returns>A half-precision floating point number formed by two bytes beginning at startIndex.</returns>
-        /// <exception cref="System.ArgumentException">
-        /// startIndex is greater than or equal to the length of value minus 1, and is
-        /// less than or equal to the length of value minus 1.
-        /// </exception>
-        /// <exception cref="System.ArgumentNullException">value is null.</exception>
-        /// <exception cref="System.ArgumentOutOfRangeException">startIndex is less than zero or greater than the length of value minus 1.</exception>
-        public static Half ToHalf(ReadOnlySpan<byte> value, int startIndex)
-        {
-            return ToHalf((ushort)BinaryPrimitives.ReadInt16LittleEndian(value.Slice(startIndex)));
-        }
-        /// <summary>
-        /// Returns a half-precision floating point number converted from its binary representation.
-        /// </summary>
-        /// <param name="bits">Binary representation of System.Half value</param>
-        /// <returns>A half-precision floating point number formed by its binary representation.</returns>
-        public static Half ToHalf(ushort bits)
-        {
-            return new Half { value = bits };
-        }
-        public static Half ToHalf(float single)
-        {
-            byte[] singleBytes = BitConverter.GetBytes(single);
-            uint value = BitConverter.ToUInt32(singleBytes, 0);
-            ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
-            return ToHalf(result);
-        }
-        public static float ToSingle(this Half half)
+        public static float HalfToSingle(Half half)
         {
             uint result = mantissaTable[offsetTable[half.value >> 10] + (half.value & 0x3ff)] + exponentTable[half.value >> 10];
             byte[] uintBytes = BitConverter.GetBytes(result);
             return BitConverter.ToSingle(uintBytes, 0);
         }
+        public static Half SingleToHalf(float single)
+        {
+            byte[] singleBytes = BitConverter.GetBytes(single);
+            uint value = BitConverter.ToUInt32(singleBytes, 0);
+            ushort result = (ushort)(baseTable[(value >> 23) & 0x1ff] + ((value & 0x007fffff) >> shiftTable[value >> 23]));
+            return Half.ToHalf(result);
+        }
 
         public static Half Negate(Half half)
         {
-            return ToHalf((ushort)(half.value ^ 0x8000));
+            return Half.ToHalf((ushort)(half.value ^ 0x8000));
         }
         public static Half Abs(Half half)
         {
-            return ToHalf((ushort)(half.value & 0x7fff));
+            return Half.ToHalf((ushort)(half.value & 0x7fff));
         }
 
         public static bool IsNaN(Half half)
@@ -250,5 +209,4 @@ namespace AssetStudio
             return (half.value == 0xfc00);
         }
     }
-#endif
 }

AssetStudio/Math/Matrix4x4.cs

@@ -26,9 +26,9 @@ namespace AssetStudio
         public float M23;
         public float M33;
 
-        public Matrix4x4(Span<float> values)
+        public Matrix4x4(float[] values)
         {
-            if (values.IsEmpty)
+            if (values == null)
                 throw new ArgumentNullException(nameof(values));
             if (values.Length != 16)
                 throw new ArgumentOutOfRangeException(nameof(values), "There must be sixteen and only sixteen input values for Matrix.");

AssetStudio/Math/Vector2.cs

@@ -45,9 +45,9 @@ namespace AssetStudio
 
         public override bool Equals(object other)
         {
-            if (!(other is Vector2 vector2))
+            if (!(other is Vector2))
                 return false;
-            return Equals(vector2);
+            return Equals((Vector2)other);
         }
 
         public bool Equals(Vector2 other)
@@ -73,7 +73,7 @@ namespace AssetStudio
 
         public float Length()
         {
-            return MathF.Sqrt(LengthSquared());
+            return (float)Math.Sqrt(LengthSquared());
         }
 
         public float LengthSquared()

AssetStudio/Math/Vector3.cs

@@ -49,9 +49,9 @@ namespace AssetStudio
 
         public override bool Equals(object other)
         {
-            if (!(other is Vector3 vector3))
+            if (!(other is Vector3))
                 return false;
-            return Equals(vector3);
+            return Equals((Vector3)other);
         }
 
         public bool Equals(Vector3 other)
@@ -79,7 +79,7 @@ namespace AssetStudio
 
         public float Length()
         {
-            return MathF.Sqrt(LengthSquared());
+            return (float)Math.Sqrt(LengthSquared());
         }
 
         public float LengthSquared()

AssetStudio/Math/Vector4.cs

@@ -61,9 +61,9 @@ namespace AssetStudio
 
         public override bool Equals(object other)
         {
-            if (!(other is Vector4 vector4))
+            if (!(other is Vector4))
                 return false;
-            return Equals(vector4);
+            return Equals((Vector4)other);
         }
 
         public bool Equals(Vector4 other)
@@ -93,7 +93,7 @@ namespace AssetStudio
 
         public float Length()
         {
-            return MathF.Sqrt(LengthSquared());
+            return (float)Math.Sqrt(LengthSquared());
         }
 
         public float LengthSquared()

AssetStudio/ObjectReader.cs

@@ -1,5 +1,8 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
+using System.Linq;
+using System.Text;
 
 namespace AssetStudio
 {
@@ -9,15 +12,13 @@ namespace AssetStudio
         public long m_PathID;
         public long byteStart;
         public uint byteSize;
-        public int classID;
         public ClassIDType type;
         public SerializedType serializedType;
         public BuildTarget platform;
         public SerializedFileFormatVersion m_Version;
 
-        public UnityVersion version => assetsFile.version;
-
-        public long Remaining => byteStart + byteSize - Position;
+        public int[] version => assetsFile.version;
+        public BuildType buildType => assetsFile.buildType;
 
         public ObjectReader(EndianBinaryReader reader, SerializedFile assetsFile, ObjectInfo objectInfo) : base(reader.BaseStream, reader.Endian)
         {
@@ -25,7 +26,6 @@ namespace AssetStudio
             m_PathID = objectInfo.m_PathID;
             byteStart = objectInfo.byteStart;
             byteSize = objectInfo.byteSize;
-            classID = objectInfo.classID;
             if (Enum.IsDefined(typeof(ClassIDType), objectInfo.classID))
             {
                 type = (ClassIDType)objectInfo.classID;
@@ -39,12 +39,6 @@ namespace AssetStudio
             m_Version = assetsFile.header.m_Version;
         }
 
-        public void ThrowIfTooLarge(float val)
-        {
-            if (val < 0 || val > Remaining)
-                throw new EndOfStreamException();
-        }
-
         public void Reset()
         {
             Position = byteStart;

AssetStudio/OffsetStream.cs

@@ -1,102 +0,0 @@
-using System.IO;
-
-namespace AssetStudio
-{
-    public class OffsetStream : Stream
-    {
-        private readonly Stream _baseStream;
-        private readonly long _length;
-        private long _offset;
-
-        public override bool CanRead => _baseStream.CanRead;
-        public override bool CanSeek => _baseStream.CanSeek;
-        public override bool CanWrite => false;
-        public override long Length => _length > 0
-            ? _length
-            : _baseStream.Length - _offset;
-
-        public override long Position
-        {
-            get => _baseStream.Position - _offset;
-            set => Seek(value, SeekOrigin.Begin);
-        }
-
-        public long BasePosition => _baseStream.Position;
-
-        public long Offset
-        {
-            get => _offset;
-            set
-            {
-                if (value < 0 || value > _baseStream.Length)
-                {
-                    throw new IOException($"{nameof(Offset)} is out of stream bound");
-                }
-                _offset = value;
-                Seek(0, SeekOrigin.Begin);
-            }
-        }
-
-        public OffsetStream(FileReader reader)
-        {
-            _baseStream = reader.BaseStream;
-            Offset = reader.Position;
-        }
-
-        public OffsetStream(Stream stream, long offset, long length)
-        {
-            _baseStream = stream;
-            _length = length;
-            Offset = offset;
-        }
-
-        public override void Flush() { }
-
-        public override int Read(byte[] buffer, int offset, int count)
-        {
-            return _baseStream.Read(buffer, offset, count);
-        }
-
-        public override long Seek(long offset, SeekOrigin origin)
-        {
-            if (offset > _baseStream.Length)
-            {
-                throw new IOException("Unable to seek beyond stream bound");
-            }
-
-            switch (origin)
-            {
-                case SeekOrigin.Begin:
-                    _baseStream.Seek(offset + _offset, SeekOrigin.Begin);
-                    break;
-                case SeekOrigin.Current:
-                    _baseStream.Seek(offset + Position, SeekOrigin.Begin);
-                    break;
-                case SeekOrigin.End:
-                    _baseStream.Seek(offset + _baseStream.Length, SeekOrigin.Begin);
-                    break;
-            }
-            return Position;
-        }
-
-        public override void SetLength(long value)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        public override void Write(byte[] buffer, int offset, int count)
-        {
-            throw new System.NotImplementedException();
-        }
-
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing)
-            {
-                _baseStream.Dispose();
-            }
-
-            base.Dispose(disposing);
-        }
-    }
-}

AssetStudio/ResourceReader.cs

@@ -7,31 +7,25 @@ namespace AssetStudio
         private bool needSearch;
         private string path;
         private SerializedFile assetsFile;
+        private long offset;
         private long size;
         private BinaryReader reader;
 
-        public int Size
-        {
-            get => (int)size;
-            set => size = value;
-        }
-        public long Offset { get; set; }
-
-        public ResourceReader() { }
+        public int Size { get => (int)size; }
 
         public ResourceReader(string path, SerializedFile assetsFile, long offset, long size)
         {
             needSearch = true;
             this.path = path;
             this.assetsFile = assetsFile;
-            this.Offset = offset;
+            this.offset = offset;
             this.size = size;
         }
 
         public ResourceReader(BinaryReader reader, long offset, long size)
         {
             this.reader = reader;
-            this.Offset = offset;
+            this.offset = offset;
             this.size = size;
         }
 
@@ -58,12 +52,8 @@ namespace AssetStudio
                 if (File.Exists(resourceFilePath))
                 {
                     needSearch = false;
-                    if (assetsFile.assetsManager.resourceFileReaders.TryGetValue(resourceFileName, out reader))
-                    {
-                        return reader;
-                    }
                     reader = new BinaryReader(File.OpenRead(resourceFilePath));
-                    assetsFile.assetsManager.resourceFileReaders.TryAdd(resourceFileName, reader);
+                    assetsFile.assetsManager.resourceFileReaders.Add(resourceFileName, reader);
                     return reader;
                 }
                 throw new FileNotFoundException($"Can't find the resource file {resourceFileName}");
@@ -77,29 +67,21 @@ namespace AssetStudio
         public byte[] GetData()
         {
             var binaryReader = GetReader();
-            lock (binaryReader)
-            {
-                binaryReader.BaseStream.Position = Offset;
-                return binaryReader.ReadBytes((int)size);
-            }
+            binaryReader.BaseStream.Position = offset;
+            return binaryReader.ReadBytes((int)size);
         }
 
-        public int GetData(byte[] buff, int startIndex = 0)
+        public void GetData(byte[] buff)
         {
-            int dataLen;
             var binaryReader = GetReader();
-            lock (binaryReader)
-            {
-                binaryReader.BaseStream.Position = Offset;
-                dataLen = binaryReader.Read(buff, startIndex, (int)size);
-            }
-            return dataLen;
+            binaryReader.BaseStream.Position = offset;
+            binaryReader.Read(buff, 0, (int)size);
         }
 
         public void WriteData(string path)
         {
             var binaryReader = GetReader();
-            binaryReader.BaseStream.Position = Offset;
+            binaryReader.BaseStream.Position = offset;
             using (var writer = File.OpenWrite(path))
             {
                 binaryReader.BaseStream.CopyTo(writer, size);

AssetStudio/SerializedFile.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
+using System.Text.RegularExpressions;
 
 namespace AssetStudio
 {
@@ -11,14 +13,15 @@ namespace AssetStudio
         public string fullName;
         public string originalPath;
         public string fileName;
-        public UnityVersion version = new UnityVersion();
+        public int[] version = { 0, 0, 0, 0 };
+        public BuildType buildType;
         public List<Object> Objects;
         public Dictionary<long, Object> ObjectsDic;
 
         public SerializedFileHeader header;
         private byte m_FileEndianess;
+        public string unityVersion = "2.5.0f5";
         public BuildTarget m_TargetPlatform = BuildTarget.UnknownPlatform;
-        public string targetPlatformString;
         private bool m_EnableTypeTree = true;
         public List<SerializedType> m_Types;
         public int bigIDEnabled = 0;
@@ -69,39 +72,16 @@ namespace AssetStudio
             }
             if (header.m_Version >= SerializedFileFormatVersion.Unknown_7)
             {
-                var versionPos = reader.Position;
-
-                var verStr = reader.ReadStringToNull();
-                if (!UnityVersion.TryParse(verStr, out version))
-                {
-                    if (assetsManager.Options.CustomUnityVersion == null)
-                    {
-                        Logger.Warning($"Failed to parse Unity version: \"{verStr}\"");
-                        version = new UnityVersion();
-                        return;
-                    }
-                    version = assetsManager.Options.CustomUnityVersion;
-                    reader.Position = versionPos;
-                    reader.ReadBytes(version.ToString().Length + 1);
-                }
-            }
-            else
-            {
-                version = new UnityVersion(2, 5, 0);
+                unityVersion = reader.ReadStringToNull();
+                SetVersion(unityVersion);
             }
             if (header.m_Version >= SerializedFileFormatVersion.Unknown_8)
             {
-                var target = reader.ReadInt32();
-                
-                m_TargetPlatform = (BuildTarget)target;
+                m_TargetPlatform = (BuildTarget)reader.ReadInt32();
                 if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
                 {
                     m_TargetPlatform = BuildTarget.UnknownPlatform;
                 }
-
-                targetPlatformString = version.IsTuanjie && Enum.IsDefined(typeof(TuanjieBuildTarget), target)
-                    ? ((TuanjieBuildTarget)target).ToString()
-                    : m_TargetPlatform.ToString();
             }
             if (header.m_Version >= SerializedFileFormatVersion.HasTypeTreeHashes)
             {
@@ -110,8 +90,8 @@ namespace AssetStudio
 
             // Read Types
             int typeCount = reader.ReadInt32();
-            m_Types = new List<SerializedType>();
-            for (var i = 0; i < typeCount; i++)
+            m_Types = new List<SerializedType>(typeCount);
+            for (int i = 0; i < typeCount; i++)
             {
                 m_Types.Add(ReadSerializedType(false));
             }
@@ -123,10 +103,10 @@ namespace AssetStudio
 
             // Read Objects
             int objectCount = reader.ReadInt32();
-            m_Objects = new List<ObjectInfo>();
-            Objects = new List<Object>();
-            ObjectsDic = new Dictionary<long, Object>();
-            for (var i = 0; i < objectCount; i++)
+            m_Objects = new List<ObjectInfo>(objectCount);
+            Objects = new List<Object>(objectCount);
+            ObjectsDic = new Dictionary<long, Object>(objectCount);
+            for (int i = 0; i < objectCount; i++)
             {
                 var objectInfo = new ObjectInfo();
                 if (bigIDEnabled != 0)
@@ -182,8 +162,8 @@ namespace AssetStudio
             if (header.m_Version >= SerializedFileFormatVersion.HasScriptTypeIndex)
             {
                 int scriptCount = reader.ReadInt32();
-                m_ScriptTypes = new List<LocalSerializedObjectIdentifier>();
-                for (var i = 0; i < scriptCount; i++)
+                m_ScriptTypes = new List<LocalSerializedObjectIdentifier>(scriptCount);
+                for (int i = 0; i < scriptCount; i++)
                 {
                     var m_ScriptType = new LocalSerializedObjectIdentifier();
                     m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
@@ -201,8 +181,8 @@ namespace AssetStudio
             }
 
             int externalsCount = reader.ReadInt32();
-            m_Externals = new List<FileIdentifier>();
-            for (var i = 0; i < externalsCount; i++)
+            m_Externals = new List<FileIdentifier>(externalsCount);
+            for (int i = 0; i < externalsCount; i++)
             {
                 var m_External = new FileIdentifier();
                 if (header.m_Version >= SerializedFileFormatVersion.Unknown_6)
@@ -222,8 +202,8 @@ namespace AssetStudio
             if (header.m_Version >= SerializedFileFormatVersion.SupportsRefObject)
             {
                 int refTypesCount = reader.ReadInt32();
-                m_RefTypes = new List<SerializedType>();
-                for (var i = 0; i < refTypesCount; i++)
+                m_RefTypes = new List<SerializedType>(refTypesCount);
+                for (int i = 0; i < refTypesCount; i++)
                 {
                     m_RefTypes.Add(ReadSerializedType(true));
                 }
@@ -237,6 +217,22 @@ namespace AssetStudio
             //reader.AlignStream(16);
         }
 
+        public void SetVersion(string stringVersion)
+        {
+            if (stringVersion != strippedVersion)
+            {
+                unityVersion = stringVersion;
+                var buildSplit = Regex.Replace(stringVersion, @"\d", "").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
+                if (buildSplit.Length == 0)
+                    throw new NotSupportedException("Specified Unity version is not in a correct format.\n" +
+                        "Specify full Unity version, including letters at the end.\n" +
+                        "Example: 2017.4.39f1");
+                buildType = new BuildType(buildSplit[0]);
+                var versionSplit = Regex.Replace(stringVersion, @"\D", ".").Split(new[] { "." }, StringSplitOptions.RemoveEmptyEntries);
+                version = versionSplit.Select(int.Parse).ToArray();
+            }
+        }
+
         private SerializedType ReadSerializedType(bool isRefType)
         {
             var type = new SerializedType();
@@ -320,7 +316,7 @@ namespace AssetStudio
             }
 
             int childrenCount = reader.ReadInt32();
-            for (var i = 0; i < childrenCount; i++)
+            for (int i = 0; i < childrenCount; i++)
             {
                 ReadTypeTree(m_Type, level + 1);
             }
@@ -330,7 +326,7 @@ namespace AssetStudio
         {
             int numberOfNodes = reader.ReadInt32();
             int stringBufferSize = reader.ReadInt32();
-            for (var i = 0; i < numberOfNodes; i++)
+            for (int i = 0; i < numberOfNodes; i++)
             {
                 var typeTreeNode = new TypeTreeNode();
                 m_Type.m_Nodes.Add(typeTreeNode);
@@ -351,7 +347,7 @@ namespace AssetStudio
 
             using (var stringBufferReader = new BinaryReader(new MemoryStream(m_Type.m_StringBuffer)))
             {
-                for (var i = 0; i < numberOfNodes; i++)
+                for (int i = 0; i < numberOfNodes; i++)
                 {
                     var m_Node = m_Type.m_Nodes[i];
                     m_Node.m_Type = ReadString(stringBufferReader, m_Node.m_TypeStrOffset);
@@ -381,5 +377,9 @@ namespace AssetStudio
             Objects.Add(obj);
             ObjectsDic.Add(obj.m_PathID, obj);
         }
+
+        public bool IsVersionStripped => unityVersion == strippedVersion;
+
+        private const string strippedVersion = "0.0.0";
     }
 }