private static GtexData ReadGtexFromVtex(Stream headers)
{
VtexHeader textureHeader = headers.ReadContent <VtexHeader>();
headers.Seek(textureHeader.GtexOffset - VtexHeader.Size, SeekOrigin.Current);
return(headers.ReadContent <GtexData>());
}
public void Inject(WpdEntry entry, Stream input, Lazy <Stream> headers, Lazy <Stream> content, Byte[] buff)
{
int sourceSize = (int)input.Length;
headers.Value.Position = entry.Offset;
SectionHeader sectionHeader = headers.Value.ReadContent <SectionHeader>();
VtexHeader textureHeader = headers.Value.ReadContent <VtexHeader>();
byte[] unknownData = new byte[textureHeader.GtexOffset - VtexHeader.Size];
headers.Value.Read(unknownData, 0, unknownData.Length);
GtexData data = headers.Value.ReadContent <GtexData>();
if (data.MipMapData.Length != 1)
{
throw new NotImplementedException();
}
DdsHeader ddsHeader = DdsHeaderDecoder.FromFileStream(input);
DdsHeaderEncoder.ToGtexHeader(ddsHeader, data.Header);
GtexMipMapLocation mipMapLocation = data.MipMapData[0];
int dataSize = sourceSize - 128;
if (dataSize <= mipMapLocation.Length)
{
content.Value.Seek(mipMapLocation.Offset, SeekOrigin.Begin);
}
else
{
content.Value.Seek(0, SeekOrigin.End);
mipMapLocation.Offset = (int)content.Value.Position;
}
input.CopyToStream(content.Value, dataSize, buff);
mipMapLocation.Length = dataSize;
using (MemoryStream ms = new MemoryStream(180))
{
sectionHeader.WriteToStream(ms);
textureHeader.WriteToStream(ms);
ms.Write(unknownData, 0, unknownData.Length);
data.WriteToStream(ms);
ms.SetPosition(0);
DefaultWpdEntryInjector defaultInjector = new DefaultWpdEntryInjector();
defaultInjector.Inject(entry, ms, headers, content, buff);
}
}
public void Extract(WpdEntry entry, Stream output, Lazy <Stream> headers, Lazy <Stream> content, Byte[] buff)
{
headers.Value.Position = entry.Offset;
SectionHeader sectionHeader = headers.Value.ReadContent <SectionHeader>();
VtexHeader textureHeader = headers.Value.ReadContent <VtexHeader>();
headers.Value.Seek(textureHeader.GtexOffset - VtexHeader.Size, SeekOrigin.Current);
GtexData gtex = headers.Value.ReadContent <GtexData>();
DdsHeader header = DdsHeaderDecoder.FromGtexHeader(gtex.Header);
DdsHeaderEncoder.ToFileStream(header, output);
foreach (GtexMipMapLocation mipMap in gtex.MipMapData)
{
content.Value.Position = mipMap.Offset;
content.Value.CopyToStream(output, mipMap.Length, buff);
}
}
