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refactor the file reading part

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Perfare
2021-07-02 02:17:59 +08:00
parent 4345885cc9
commit 7ab2cda120
7 changed files with 175 additions and 159 deletions
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AssetStudio/SerializedFile.cs
+4 -41
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@@ -9,7 +9,7 @@ namespace AssetStudio
public class SerializedFile
{
public AssetsManager assetsManager;
public EndianBinaryReader reader;
public FileReader reader;
public string fullName;
public string originalPath;
public string fileName;
@@ -31,12 +31,12 @@ namespace AssetStudio
public List<SerializedType> m_RefTypes;
public string userInformation;
public SerializedFile(AssetsManager assetsManager, string fullName, EndianBinaryReader reader)
public SerializedFile(FileReader reader, AssetsManager assetsManager)
{
this.assetsManager = assetsManager;
this.reader = reader;
this.fullName = fullName;
fileName = Path.GetFileName(fullName);
fullName = reader.FullPath;
fileName = reader.FileName;
// ReadHeader
header = new SerializedFileHeader();
@@ -377,42 +377,5 @@ namespace AssetStudio
public bool IsVersionStripped => unityVersion == strippedVersion;
private const string strippedVersion = "0.0.0";
public static bool IsSerializedFile(EndianBinaryReader reader)
{
var fileSize = reader.BaseStream.Length;
if (fileSize < 20)
{
return false;
}
var m_MetadataSize = reader.ReadUInt32();
long m_FileSize = reader.ReadUInt32();
var m_Version = reader.ReadUInt32();
long m_DataOffset = reader.ReadUInt32();
var m_Endianess = reader.ReadByte();
var m_Reserved = reader.ReadBytes(3);
if (m_Version >= 22)
{
if (fileSize < 48)
{
return false;
}
m_MetadataSize = reader.ReadUInt32();
m_FileSize = reader.ReadInt64();
m_DataOffset = reader.ReadInt64();
}
if (m_FileSize != fileSize)
{
reader.Position = 0;
return false;
}
if (m_DataOffset > fileSize)
{
reader.Position = 0;
return false;
}
reader.Position = 0;
return true;
}
}
}