private static void Read(PexFile file, IBinaryReadStream br)
{
var magic = br.ReadUInt32();
if (magic != PexMagic)
{
throw new InvalidDataException($"File does not have fast code! Magic does not match {PexMagic:x8} is {magic:x8}");
}
file.MajorVersion = br.ReadUInt8();
file.MinorVersion = br.ReadUInt8();
file.GameId = br.ReadUInt16();
file.CompilationTime = br.ReadUInt64().ToDateTime();
file.SourceFileName = br.ReadPrependedString(2);
file.Username = br.ReadPrependedString(2);
file.MachineName = br.ReadPrependedString(2);
var stringsCount = br.ReadUInt16();
var bundle = new PexParseMeta(
file._gameCategory,
br,
new Dictionary <ushort, string>());
for (var i = 0; i < stringsCount; i++)
{
bundle.Strings.Add((ushort)i, br.ReadPrependedString(2));
}
var hasDebugInfo = bundle.Reader.ReadUInt8() == 1;
if (hasDebugInfo)
{
file.DebugInfo = Mutagen.Bethesda.Pex.DebugInfo.Create(bundle);
}
var userFlagCount = br.ReadUInt16();
for (var i = 0; i < userFlagCount; i++)
{
var str = bundle.ReadString();
file.UserFlags[br.ReadUInt8()] = str;
}
var objectCount = br.ReadUInt16();
for (var i = 0; i < objectCount; i++)
{
var pexObject = PexObject.Create(bundle);
file.Objects.Add(pexObject);
}
}
/// <summary>
/// Write to a .pex file.
/// </summary>
/// <param name="pexFile">The pex file to write.</param>
/// <param name="outputPath">Output path.</param>
/// <param name="gameCategory">Game Category of the pex file.</param>
public static void WritePexFile(this PexFile pexFile, string outputPath, GameCategory gameCategory)
{
var dirName = Path.GetDirectoryName(outputPath);
Directory.CreateDirectory(dirName ?? string.Empty);
if (File.Exists(outputPath))
{
File.Delete(outputPath);
}
using var fs = File.Open(outputPath, FileMode.Create, FileAccess.ReadWrite, FileShare.Read);
using var bw = new PexWriter(fs, Encoding.UTF8, gameCategory.IsBigEndian());
pexFile.Write(bw);
}
public static PexFile CreateFromStream(Stream stream, GameCategory gameCategory)
{
using var br = new BinaryReadStream(stream, isLittleEndian: !gameCategory.IsBigEndian());
//https://en.uesp.net/wiki/Skyrim_Mod:Compiled_Script_File_Format
var pexFile = new PexFile(gameCategory);
Read(pexFile, br);
if (stream.Position != stream.Length)
{
throw new InvalidDataException("Finished reading but end of the stream was not reached! " +
$"Current position: {stream.Position} " +
$"Stream length: {stream.Length} " +
$"Missing: {stream.Length - stream.Position}");
}
return(pexFile);
}