private static void ExtractTopMip(string fileName, Mip mip, Action <string> completionAction)
{
string name = Path.GetFileNameWithoutExtension(fileName);
using (Stream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
if (stream.Length == 0)
{
return;
}
using (BinaryReader reader = new BinaryReader(stream))
{
DatafileHeader header = new DatafileHeader
{
ResourceType = reader.ReadInt32(),
FileSize = reader.ReadInt32(),
FileNameSize = reader.ReadInt32()
};
header.FileName = reader.ReadChars(header.FileNameSize);
reader.BaseStream.Seek(18, SeekOrigin.Current);
byte[] data = reader.ReadBytes(header.FileSize - 18);
// write DDS file
Helpers.WriteTempDDS(name, data, mip.Width, mip.Height, mip.Mipmaps, mip.DXTType, () =>
{
Helpers.ConvertDDS($"{Helpers.GetTempPath(name)}.dds", (bool error) =>
{
if (error)
{
completionAction("FAILED");
}
else
{
completionAction($"{Helpers.GetTempPath(name)}.png");
}
});
});
}
}
}
public static void ExtractTextureMap(string fileName, EntryTreeNode node, Action <string> completionAction)
{
string name = Path.GetFileNameWithoutExtension(fileName);
using (Stream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
if (stream.Length == 0)
{
return;
}
using (BinaryReader reader = new BinaryReader(stream))
{
DatafileHeader header = new DatafileHeader
{
ResourceType = reader.ReadInt32(),
FileSize = reader.ReadInt32(),
FileNameSize = reader.ReadInt32()
};
header.FileName = reader.ReadChars(header.FileNameSize);
// ignore the 1 byte, file ID, resource type, and 1 extra byte
reader.BaseStream.Seek(14, SeekOrigin.Current);
// mip 0
Mip mip0 = new Mip
{
Width = reader.ReadInt32(),
Height = reader.ReadInt32()
};
reader.BaseStream.Seek(8, SeekOrigin.Current);
mip0.DXTType = DXTExtensions.GetDXT(reader.ReadInt32());
reader.BaseStream.Seek(4, SeekOrigin.Current);
mip0.Mipmaps = reader.ReadInt32();
reader.BaseStream.Seek(39, SeekOrigin.Current); // go to next mip
// mip 1
Mip mip1 = new Mip
{
Width = reader.ReadInt32(),
Height = reader.ReadInt32()
};
reader.BaseStream.Seek(8, SeekOrigin.Current);
mip1.DXTType = DXTExtensions.GetDXT(reader.ReadInt32());
reader.BaseStream.Seek(4, SeekOrigin.Current);
mip1.Mipmaps = reader.ReadInt32();
// locate the two mips, if they exist
if (node.GetForge().FileEntries.Where(x => x.NameTable.Name.Contains(Path.GetFileNameWithoutExtension(fileName) + "_Mip")).Count() == 2)
{
Forge.FileEntry[] mipEntries = node.GetForge().FileEntries.Where(x => x.NameTable.Name == Path.GetFileNameWithoutExtension(fileName) + "_Mip0").ToArray();
if (mipEntries.Length > 0)
{
Forge.FileEntry mipEntry = mipEntries[0];
// extract, read, and create a DDS image with the first mip
byte[] rawTopMipData = node.GetForge().GetRawData(mipEntry);
//Helpers.WriteToFile(mipEntry.NameTable.Name, rawData, true);
// read
//ReadFile(Helpers.GetTempPath(mipEntry.NameTable.Name));
byte[] topMipData = ReadFile(rawTopMipData);
// extract
//ExtractTopMip(Helpers.GetTempPath(mipEntry.NameTable.Name), mip0, completionAction);
ExtractTopMip(topMipData, mipEntry.NameTable.Name, mip0, completionAction);
}
}
else // mips do not exist. fear not! there is still image data found here. let us use that.
{
reader.BaseStream.Seek(12, SeekOrigin.Current);
TextureMap map = new TextureMap
{
DataSize = reader.ReadInt32()
};
byte[] mipmapData = reader.ReadBytes(map.DataSize);
// write DDS file
Helpers.WriteTempDDS(name, mipmapData, mip1.Width, mip1.Height, mip1.Mipmaps, mip1.DXTType, () =>
{
Helpers.ConvertDDS($"{Helpers.GetTempPath(name)}.dds", (bool error) => {
if (error)
{
completionAction("FAILED");
}
else
{
completionAction($"{Helpers.GetTempPath(name)}.png");
}
});
});
}
}
}
}
