/// <summary>
/// Loads header part 1 from a file stream.
/// </summary>
/// <param name="file">The file stream to load from.</param>
/// <param name="offset">The absolute offset into the file where part 1 starts.</param>
/// <param name="size">The size of part 1 in bytes.</param>
/// <param name="p">Progress info.</param>
internal NefsHeaderPt1(FileStream file, UInt32 offset, UInt32 size, NefsProgressInfo p)
{
_offset = offset;
_size = size;
/* Validate inputs */
if (size == 0)
{
log.Warn("Header part 1 has a size of 0.");
return;
}
UInt32 nextEntry = offset;
UInt32 lastEntry = offset + size - NefsHeaderPt1Entry.SIZE;
UInt32 numEntries = size / NefsHeaderPt1Entry.SIZE;
/* Load each entry */
while (nextEntry <= lastEntry)
{
p.BeginTask(1.0f / (float)numEntries);
var entry = new NefsHeaderPt1Entry(file, nextEntry);
_entries.Add(entry);
nextEntry += NefsHeaderPt1Entry.SIZE;
p.EndTask();
}
}
/// <summary>
/// Gets a Part 2 entry corresponding to the specified Part 1 entry.
/// </summary>
/// <param name="pt1Entry">The Part 1 entry to get the matching Part 2 entry for.</param>
public NefsHeaderPt2Entry GetEntry(NefsHeaderPt1Entry pt1Entry)
{
return(GetEntry(pt1Entry.Id, pt1Entry.OffsetIntoPt2));
}