private void Update(BitStream bitStream, string tableName, int tableFlags, int numberOfEntries, int maxEntries, int userDataSize, int userDataSizeInBits, bool userDataIsFixedSize)
{
bool encodeUsingDictionaries = bitStream.ReadBit();
if (encodeUsingDictionaries)
{
Console.WriteLine("Cannot Decode StringTable Update");
return;
}
List<String> entryHistory = new List<String>();
int lastEntriesIndex = -1;
for (int i = 0; i < numberOfEntries; i++)
{
int entryIndex = lastEntriesIndex + 1;
int entryLength = (int)Math.Log(maxEntries, 2);
if (!bitStream.ReadBit())
{
entryIndex = (int)bitStream.ReadBits(entryLength);
}
lastEntriesIndex = entryIndex;
if (entryIndex < 0 || entryIndex >= maxEntries)
{
Console.WriteLine("Invalid StringTableEntry Index");
return;
}
string entryName = "";
if (bitStream.ReadBit())
{
bool substringCheck = bitStream.ReadBit();
if (substringCheck)
{
int index = (int)bitStream.ReadBits(5);
int bytesToCopy = (int)bitStream.ReadBits(5);
entryName = entryHistory[index].Substring(0, bytesToCopy);
entryName += bitStream.ReadString();
}
else
{
entryName = bitStream.ReadString();
}
}
if (entryHistory.Count > 31)
{
entryHistory.RemoveAt(0);
}
entryHistory.Add(entryName);
byte[] entryData = null;
if (bitStream.ReadBit())
{
if (userDataIsFixedSize)
{
entryData = bitStream.ReadBitsToArray(userDataSizeInBits);
}
else
{
int bytesToRead = (int)bitStream.ReadBits(14);
entryData = bitStream.ReadBytes(bytesToRead);
}
}
StringTableEntry stringTableEntry = new StringTableEntry(entryName, entryIndex, entryData);
Add(tableName, stringTableEntry);
}
}