private static void UpdateUDKOffsets(ExportEntry export, int newDataOffset)
{
if (export.IsDefaultObject)
{
return; //this is not actually instance of that class
}
//update offsets for pcc-stored mips in Textures
if (export.IsTexture())
{
int baseOffset = newDataOffset + export.propsEnd();
MemoryStream binData = new MemoryStream(export.GetBinaryData());
binData.Skip(8);
int thumbnailSize = binData.ReadInt32();
binData.WriteInt32(baseOffset + (int)binData.Position + 4);
binData.Skip(thumbnailSize);
for (int i = binData.ReadInt32(); i > 0 && binData.Position < binData.Length; i--)
{
var storageFlags = (StorageFlags)binData.ReadInt32();
if (!storageFlags.HasFlag(StorageFlags.externalFile)) //pcc-stored
{
int uncompressedSize = binData.ReadInt32();
int compressedSize = binData.ReadInt32();
binData.WriteInt32(baseOffset + (int)binData.Position + 4); //update offset
binData.Seek((storageFlags == StorageFlags.noFlags ? uncompressedSize : compressedSize) + 8, SeekOrigin.Current); //skip texture and width + height values
}
else
{
binData.Seek(20, SeekOrigin.Current);//skip whole rest of mip definition
}
}
binData.Skip(40);
binData.WriteInt32(baseOffset + (int)binData.Position + 4);
export.WriteBinary(binData.ToArray());
}
}
