private static string ExtractTopMip(string fileName, TopMip topMip)
{
/*
* Diffuse maps = DXT1
* Normal maps = DX10 w/ BC7
*/
using (Stream stream = new FileStream($"{fileName}-combined", FileMode.Open, FileAccess.Read, FileShare.Read))
{
using (BinaryReader reader = new BinaryReader(stream))
{
// this is omnipresent
DatafileHeader header = new DatafileHeader
{
ResourceType = reader.ReadInt32(),
FileSize = reader.ReadInt32(),
FileNameSize = reader.ReadInt32()
};
header.FileName = reader.ReadChars(header.FileNameSize);
reader.BaseStream.Seek(18, SeekOrigin.Current);
byte[] data = reader.ReadBytes(header.FileSize - 18);
// write DDS file
Helpers.WriteTempDDS(fileName, data, topMip.Width, topMip.Height, topMip.Mipmaps, topMip.DXTType);
}
}
return(string.Format("{0}.dds", Helpers.GetTempPath(fileName))); // Helpers.ConvertDDSToPNG();
}
private static void ExtractTopMip(byte[] topMipData, string name, TopMip topMip, Action <string> completionAction)
{
using (Stream stream = new MemoryStream(topMipData))
{
using (BinaryReader reader = new BinaryReader(stream))
{
DatafileHeader header = new DatafileHeader
{
ResourceType = reader.ReadInt32(),
FileSize = reader.ReadInt32(),
FileNameSize = reader.ReadInt32()
};
header.FileName = reader.ReadChars(header.FileNameSize);
reader.BaseStream.Seek(18, SeekOrigin.Current);
byte[] data = reader.ReadBytes(header.FileSize - 18);
// write DDS file
Helpers.WriteTempDDS(name, data, topMip.Width, topMip.Height, topMip.Mipmaps, topMip.DXTType, () =>
{
Helpers.ConvertDDS($"{Helpers.GetTempPath(name)}.dds", (bool error) =>
{
if (error)
{
completionAction("FAILED");
}
else
{
completionAction($"{Helpers.GetTempPath(name)}.png");
}
});
});
}
}
}
public static bool ExtractTextureMap(string fileName, Forge forge)
{
using (Stream stream = new FileStream($"{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))
{
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 2 bytes, file ID, and resource type
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, ignored
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 (node.GetForge().FileEntries.Where(x => x.NameTable.Name.Contains(name + "_TopMip")).Count() == 2)
{
Forge.FileEntry topMipEntry = node.GetForge().FileEntries.Where(x => x.NameTable.Name == name + "_TopMip_0").First();
// extract, read, and create a DDS image with the first topmip
byte[] rawTopMipData = node.GetForge().GetRawData(topMipEntry);
//Helpers.WriteToFile(topMipEntry.NameTable.Name, rawTopMipData, true);
// read
//ReadFile(Helpers.GetTempPath(topMipEntry.NameTable.Name));
byte[] topMipData = ReadFile(rawTopMipData);
// extract
//ExtractTopMip(Helpers.GetTempPath(topMipEntry.NameTable.Name), mip0, completionAction);
ExtractTopMip(topMipData, topMipEntry.NameTable.Name, mip0, completionAction);
}
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);
// write DDS file
Helpers.WriteTempDDS(name, mipmapData, mip0.Width, mip0.Height, mip0.Mipmaps, mip0.DXTType, () =>
{
Helpers.ConvertDDS($"{Helpers.GetTempPath(name)}.dds", (bool error) =>
{
if (error)
{
completionAction("FAILED");
}
else
{
completionAction($"{Helpers.GetTempPath(name)}.png");
}
});
});
}
}
}
}
