internal Steam3Manifest(DataStream data)
{
Deserialize(data);
}
const uint ENTRY_SIZE = 28; // the size of a single node
internal Steam2Manifest(byte[] manifestBlob)
{
this.Nodes = new List <Node>();
using (DataStream ds = new DataStream(manifestBlob))
{
uint headerVersion = ds.ReadUInt32();
this.DepotID = ds.ReadUInt32();
this.DepotVersion = ds.ReadUInt32();
this.NodeCount = ds.ReadUInt32();
this.FileCount = ds.ReadUInt32();
this.BlockSize = ds.ReadUInt32();
// checksum is the last field in the header
ds.Seek(HEADER_SIZE - 4, SeekOrigin.Begin);
this.DepotChecksum = ds.ReadUInt32();
// the start of the names section is after the header and every node
uint namesStart = HEADER_SIZE + (this.NodeCount * ENTRY_SIZE);
for (int x = 0; x < this.NodeCount; ++x)
{
ds.Seek(HEADER_SIZE + (x * ENTRY_SIZE), SeekOrigin.Begin);
// the first value within a node is the offset from the start of the names section
uint nameOffset = namesStart + ds.ReadUInt32();
Node entry = new Node
{
SizeOrCount = ds.ReadUInt32(),
FileID = ds.ReadInt32(),
Attributes = (Node.Attribs)ds.ReadUInt32(),
ParentIndex = ds.ReadInt32(),
Parent = this,
};
ds.Seek(nameOffset, SeekOrigin.Begin);
entry.Name = ds.ReadNullTermString(Encoding.ASCII);
this.Nodes.Add(entry);
}
}
// now build full names
for (int x = 0; x < this.NodeCount; ++x)
{
Node entry = this.Nodes[x];
string fullName = entry.Name;
while (entry.ParentIndex != -1)
{
entry = this.Nodes[entry.ParentIndex];
fullName = Path.Combine(entry.Name, fullName);
}
entry = this.Nodes[x];
entry.FullName = fullName;
}
}
/// <summary>
/// Deserialize a MicroTime from an input byte array
/// </summary>
public static MicroTime Deserialize(byte[] data)
{
DataStream ds = new DataStream(data);
return(new MicroTime(ds.ReadUInt64()));
}
