public static bool ExtractTextureMap(string fileName, Forge forge)
{
using (Stream stream = new FileStream($"{fileName}-combined", FileMode.Open, FileAccess.Read, FileShare.Read))
{
using (BinaryReader reader = new BinaryReader(stream))
{
// this is omnipresent
DatafileHeader header = new DatafileHeader
{
ResourceType = reader.ReadInt32(),
FileSize = reader.ReadInt32(),
FileNameSize = reader.ReadInt32()
};
header.FileName = reader.ReadChars(header.FileNameSize);
// ignore the 2 bytes, file ID, and resource type identifier
reader.BaseStream.Seek(14, SeekOrigin.Current);
// toppmip 0
TopMip mip0 = new TopMip
{
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(81, SeekOrigin.Current);
// topmip 1
TopMip mip1 = new TopMip
{
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 topmips, if they exist
if (forge.FileEntries.Where(x => x.NameTable.Name.Contains(Path.GetFileName(fileName) + "_TopMip")).Count() == 2)
{
Forge.FileEntry topMipEntry = forge.FileEntries.Where(x => x.NameTable.Name == Path.GetFileName(fileName) + "_TopMip_0").First();
// extract, read, and create DDS images with the first topmips
byte[] rawData = forge.GetRawData(topMipEntry);
Helpers.WriteToTempFile(topMipEntry.NameTable.Name, rawData);
ReadFile(Helpers.GetTempPath(topMipEntry.NameTable.Name));
ExtractTopMip(Helpers.GetTempPath(topMipEntry.NameTable.Name), mip0);
}
else // topmips do not exist. fear not! there is still image data found here. let us use that.
{
reader.BaseStream.Seek(25, SeekOrigin.Current);
TextureMap map = new TextureMap
{
DataSize = reader.ReadInt32()
};
byte[] mipmapData = reader.ReadBytes(map.DataSize);
Helpers.WriteTempDDS(fileName, mipmapData, mip0.Width, mip0.Height, mip0.Mipmaps, mip0.DXTType);
}
}
}
return(true);
}
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");
}
});
});
}
}
}
}