public Wbfs(Stream stream)
{
this.stream = stream;
cluster_size = 1 << stream.Read(9, 1)[0];
clusters_table = stream.Read((1 << stream.Read(8, 1)[0]) + 0x100, (int)(4699979776 * 2 / cluster_size * 2));
for (var i = 0; i < clusters_table.Length / 2; i++)
{
if (BigEndian.ToUInt16(clusters_table, i * 2) != 0)
{
length = (long)(i + 1) * cluster_size;
}
}
length = length <= 4699979776 ? 4699979776 : 8511160320;
}
public override int Read(byte[] buffer, int offset, int size)
{
while (size > 0)
{
var cluster_index = (int)(position / cluster_size);
var in_cluster_offset = (int)(position % cluster_size);
var cluster_wbfs_index = BigEndian.ToUInt16(clusters_table, cluster_index * 2);
var cluster_copy_size = Math.Min(cluster_size - in_cluster_offset, size);
if (cluster_wbfs_index == 0)
{
Array.Clear(buffer, offset, cluster_copy_size);
}
else
{
stream.Read((long)cluster_wbfs_index * cluster_size + in_cluster_offset, buffer, offset, cluster_copy_size);
}
offset += cluster_copy_size;
size -= cluster_copy_size;
position += cluster_copy_size;
}
return(size);
}
public static int ReadBE16(this Stream file, long position)
{
return(BigEndian.ToUInt16(file.Read(position, 2), 0));
}
