protected override FileIndexEntry3D[] ReadEntries()
{
if (!File.Exists(IndexPath) || !File.Exists(DataPath))
{
return(new FileIndexEntry3D[0]);
}
List <FileIndexEntry3D> entries = new List <FileIndexEntry3D>();
int length = (int)((new FileInfo(IndexPath).Length / 3) / 4);
using (FileStream index = new FileStream(IndexPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
BinaryReader bin = new BinaryReader(index);
int count = (int)(index.Length / 12);
for (int i = 0; i < count && i < length; ++i)
{
FileIndexEntry3D entry = new FileIndexEntry3D(bin.ReadInt32(), bin.ReadInt32(), bin.ReadInt32());
entries.Add(entry);
}
for (int i = count; i < length; ++i)
{
FileIndexEntry3D entry = new FileIndexEntry3D(-1, -1, -1);
entries.Add(entry);
}
}
FileIndexEntry5D[] patches = VerData.Patches;
for (int i = 0; i < patches.Length; ++i)
{
FileIndexEntry5D patch = patches[i];
if (patch.file == patchFile && patch.index >= 0 && patch.index < entries.Count)
{
FileIndexEntry3D entry = entries.ElementAt(patch.index);
entry.Lookup = patch.lookup;
entry.Length = patch.length | (1 << 31);
entry.Extra = patch.extra;
}
}
return(entries.ToArray());
}
public BinaryFileReader Seek(int index, out int length, out int extra, out bool patched)
{
if (Stream == null)
{
m_Stream = new FileStream(DataPath, FileMode.Open, FileAccess.Read, FileShare.Read);
}
if (index < 0 || index >= m_Index.Length)
{
length = extra = 0;
patched = false;
return(null);
}
FileIndexEntry3D e = m_Index[index];
if (e.Lookup < 0)
{
length = extra = 0;
patched = false;
return(null);
}
length = e.Length & 0x7FFFFFFF;
extra = e.Extra;
if ((e.Length & 0xFF000000) != 0)
{
patched = true;
VerData.Stream.Seek(e.Lookup, SeekOrigin.Begin);
return(new BinaryFileReader(new BinaryReader(VerData.Stream)));
}
else if (m_Stream == null)
{
length = extra = 0;
patched = false;
return(null);
}
patched = false;
m_Stream.Position = e.Lookup;
return(new BinaryFileReader(new BinaryReader(m_Stream)));
}
