private IEnumerable <ArchiveBlockDescriptor> GetDescriptors(BlockTable blockTable)
{
foreach (var entry in blockTable)
{
if (entry.BlockSize == 0)
{
continue;
}
using (var mappedStream = File.CreateViewStream(entry.DirectoryOffset, entry.BlockSize, MemoryMappedFileAccess.Read))
using (var binaryReader = new BinaryReader(mappedStream))
{
var magic = binaryReader.ReadUInt32();
var blockDescriptor = ArchiveBlockDescriptor.Create(magic, binaryReader);
if (blockDescriptor != null)
{
yield return(blockDescriptor);
}
}
}
}
public WildstarFile(MemoryMappedFile file, string name)
{
File = file;
Name = name;
using (var mappedStream = file.CreateViewStream(0, FileHeader.Size, MemoryMappedFileAccess.Read))
using (var binaryReader = new BinaryReader(mappedStream))
{
FileHeader = FileHeader.Load(binaryReader);
if (FileHeader.Magic != Signatures.Pack)
{
throw new InvalidDataException(
"The file signature does not match the expected signature, the file is not valid.");
}
if (FileHeader.Version != 1)
{
throw new InvalidOperationException(
$"This library only supports version 0x{1:X8}, but the file appears to be version 0x{FileHeader.Version:X8}");
}
}
BlockTable = BlockTable.Load(this);
_lazyArchiveBlockDescriptors = new Lazy <IReadOnlyList <ArchiveBlockDescriptor> >(() => GetDescriptors(BlockTable).ToList().AsReadOnly());
_lazyAssetTable = new Lazy <ResourceContainerTable>(() => AssetArchiveResourceContainerDescriptor == null ? null : new ResourceContainerTable(AssetArchiveResourceContainerDescriptor, this));
}
