Improved file reading
This commit is contained in:
Perfare
@@ -16,7 +16,6 @@ namespace AssetStudio
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public string upperFileName;
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public int[] version = { 0, 0, 0, 0 };
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public BuildType buildType;
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public bool valid;
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public Dictionary<long, Object> Objects;
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public SerializedFileHeader header;
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@@ -36,151 +35,143 @@ namespace AssetStudio
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this.fullName = fullName;
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fileName = Path.GetFileName(fullName);
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upperFileName = fileName.ToUpper();
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try
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{
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//ReadHeader
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header = new SerializedFileHeader();
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header.m_MetadataSize = reader.ReadUInt32();
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header.m_FileSize = reader.ReadUInt32();
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header.m_Version = reader.ReadUInt32();
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header.m_DataOffset = reader.ReadUInt32();
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if (header.m_Version >= 9)
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//ReadHeader
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header = new SerializedFileHeader();
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header.m_MetadataSize = reader.ReadUInt32();
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header.m_FileSize = reader.ReadUInt32();
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header.m_Version = reader.ReadUInt32();
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header.m_DataOffset = reader.ReadUInt32();
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if (header.m_Version >= 9)
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{
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header.m_Endianess = reader.ReadByte();
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header.m_Reserved = reader.ReadBytes(3);
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m_FileEndianess = (EndianType)header.m_Endianess;
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}
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else
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{
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reader.Position = header.m_FileSize - header.m_MetadataSize;
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m_FileEndianess = (EndianType)reader.ReadByte();
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}
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//ReadMetadata
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if (m_FileEndianess == EndianType.LittleEndian)
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{
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reader.endian = EndianType.LittleEndian;
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}
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if (header.m_Version >= 7)
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{
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unityVersion = reader.ReadStringToNull();
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SetVersion(unityVersion);
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}
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if (header.m_Version >= 8)
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{
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m_TargetPlatform = (BuildTarget)reader.ReadInt32();
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if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
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{
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header.m_Endianess = reader.ReadByte();
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header.m_Reserved = reader.ReadBytes(3);
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m_FileEndianess = (EndianType)header.m_Endianess;
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m_TargetPlatform = BuildTarget.UnknownPlatform;
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}
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}
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if (header.m_Version >= 13)
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{
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m_EnableTypeTree = reader.ReadBoolean();
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}
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//ReadTypes
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int typeCount = reader.ReadInt32();
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m_Types = new List<SerializedType>(typeCount);
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for (int i = 0; i < typeCount; i++)
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{
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m_Types.Add(ReadSerializedType());
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}
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if (header.m_Version >= 7 && header.m_Version < 14)
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{
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var bigIDEnabled = reader.ReadInt32();
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}
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//ReadObjects
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int objectCount = reader.ReadInt32();
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m_Objects = new List<ObjectInfo>(objectCount);
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for (int i = 0; i < objectCount; i++)
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{
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var objectInfo = new ObjectInfo();
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if (header.m_Version < 14)
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{
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objectInfo.m_PathID = reader.ReadInt32();
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}
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else
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{
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reader.Position = header.m_FileSize - header.m_MetadataSize;
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m_FileEndianess = (EndianType)reader.ReadByte();
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reader.AlignStream();
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objectInfo.m_PathID = reader.ReadInt64();
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}
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objectInfo.byteStart = reader.ReadUInt32();
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objectInfo.byteStart += header.m_DataOffset;
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objectInfo.byteSize = reader.ReadUInt32();
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objectInfo.typeID = reader.ReadInt32();
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if (header.m_Version < 16)
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{
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objectInfo.classID = reader.ReadUInt16();
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objectInfo.serializedType = m_Types.Find(x => x.classID == objectInfo.typeID);
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var isDestroyed = reader.ReadUInt16();
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}
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else
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{
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var type = m_Types[objectInfo.typeID];
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objectInfo.serializedType = type;
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objectInfo.classID = type.classID;
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}
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if (header.m_Version == 15 || header.m_Version == 16)
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{
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var stripped = reader.ReadByte();
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}
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m_Objects.Add(objectInfo);
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}
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//ReadMetadata
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if (m_FileEndianess == EndianType.LittleEndian)
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if (header.m_Version >= 11)
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{
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int scriptCount = reader.ReadInt32();
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m_ScriptTypes = new List<LocalSerializedObjectIdentifier>(scriptCount);
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for (int i = 0; i < scriptCount; i++)
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{
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reader.endian = EndianType.LittleEndian;
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}
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if (header.m_Version >= 7)
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{
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unityVersion = reader.ReadStringToNull();
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SetVersion(unityVersion);
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}
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if (header.m_Version >= 8)
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{
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m_TargetPlatform = (BuildTarget)reader.ReadInt32();
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if (!Enum.IsDefined(typeof(BuildTarget), m_TargetPlatform))
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{
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m_TargetPlatform = BuildTarget.UnknownPlatform;
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}
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}
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if (header.m_Version >= 13)
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{
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m_EnableTypeTree = reader.ReadBoolean();
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}
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//ReadTypes
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int typeCount = reader.ReadInt32();
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m_Types = new List<SerializedType>(typeCount);
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for (int i = 0; i < typeCount; i++)
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{
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m_Types.Add(ReadSerializedType());
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}
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if (header.m_Version >= 7 && header.m_Version < 14)
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{
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var bigIDEnabled = reader.ReadInt32();
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}
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//ReadObjects
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int objectCount = reader.ReadInt32();
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m_Objects = new List<ObjectInfo>(objectCount);
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for (int i = 0; i < objectCount; i++)
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{
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var objectInfo = new ObjectInfo();
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var m_ScriptType = new LocalSerializedObjectIdentifier();
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m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
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if (header.m_Version < 14)
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{
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objectInfo.m_PathID = reader.ReadInt32();
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m_ScriptType.localIdentifierInFile = reader.ReadInt32();
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}
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else
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{
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reader.AlignStream(4);
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objectInfo.m_PathID = reader.ReadInt64();
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reader.AlignStream();
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m_ScriptType.localIdentifierInFile = reader.ReadInt64();
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}
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objectInfo.byteStart = reader.ReadUInt32();
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objectInfo.byteStart += header.m_DataOffset;
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objectInfo.byteSize = reader.ReadUInt32();
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objectInfo.typeID = reader.ReadInt32();
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if (header.m_Version < 16)
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{
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objectInfo.classID = reader.ReadUInt16();
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objectInfo.serializedType = m_Types.Find(x => x.classID == objectInfo.typeID);
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var isDestroyed = reader.ReadUInt16();
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}
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else
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{
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var type = m_Types[objectInfo.typeID];
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objectInfo.serializedType = type;
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objectInfo.classID = type.classID;
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}
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if (header.m_Version == 15 || header.m_Version == 16)
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{
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var stripped = reader.ReadByte();
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}
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m_Objects.Add(objectInfo);
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m_ScriptTypes.Add(m_ScriptType);
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}
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}
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if (header.m_Version >= 11)
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int externalsCount = reader.ReadInt32();
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m_Externals = new List<FileIdentifier>(externalsCount);
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for (int i = 0; i < externalsCount; i++)
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{
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var m_External = new FileIdentifier();
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if (header.m_Version >= 6)
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{
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int scriptCount = reader.ReadInt32();
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m_ScriptTypes = new List<LocalSerializedObjectIdentifier>(scriptCount);
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for (int i = 0; i < scriptCount; i++)
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{
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var m_ScriptType = new LocalSerializedObjectIdentifier();
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m_ScriptType.localSerializedFileIndex = reader.ReadInt32();
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if (header.m_Version < 14)
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{
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m_ScriptType.localIdentifierInFile = reader.ReadInt32();
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}
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else
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{
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reader.AlignStream(4);
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m_ScriptType.localIdentifierInFile = reader.ReadInt64();
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}
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m_ScriptTypes.Add(m_ScriptType);
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}
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var tempEmpty = reader.ReadStringToNull();
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}
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int externalsCount = reader.ReadInt32();
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m_Externals = new List<FileIdentifier>(externalsCount);
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for (int i = 0; i < externalsCount; i++)
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{
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var m_External = new FileIdentifier();
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if (header.m_Version >= 6)
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{
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var tempEmpty = reader.ReadStringToNull();
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}
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if (header.m_Version >= 5)
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{
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m_External.guid = new Guid(reader.ReadBytes(16));
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m_External.type = reader.ReadInt32();
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}
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m_External.pathName = reader.ReadStringToNull();
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m_External.fileName = Path.GetFileName(m_External.pathName);
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m_Externals.Add(m_External);
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}
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if (header.m_Version >= 5)
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{
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//var userInformation = reader.ReadStringToNull();
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m_External.guid = new Guid(reader.ReadBytes(16));
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m_External.type = reader.ReadInt32();
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}
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valid = true;
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m_External.pathName = reader.ReadStringToNull();
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m_External.fileName = Path.GetFileName(m_External.pathName);
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m_Externals.Add(m_External);
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}
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catch
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if (header.m_Version >= 5)
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{
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// ignored
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//var userInformation = reader.ReadStringToNull();
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}
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}
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