private static RemapSegment[] InitSegments(RemapHeader header, MapEntry[] mapEntries)
{
var segments = new RemapSegment[header.MapSegmentCount];
int entryIdx = 0;
for (int i = 0; i < header.MapSegmentCount; i++)
{
var seg = new RemapSegment();
seg.Entries.Add(mapEntries[entryIdx]);
seg.Offset = mapEntries[entryIdx].VirtualOffset;
mapEntries[entryIdx].Segment = seg;
entryIdx++;
while (entryIdx < mapEntries.Length &&
mapEntries[entryIdx - 1].VirtualOffsetEnd == mapEntries[entryIdx].VirtualOffset)
{
mapEntries[entryIdx].Segment = seg;
mapEntries[entryIdx - 1].Next = mapEntries[entryIdx];
seg.Entries.Add(mapEntries[entryIdx]);
entryIdx++;
}
seg.Length = seg.Entries[seg.Entries.Count - 1].VirtualOffsetEnd - seg.Entries[0].VirtualOffset;
segments[i] = seg;
}
return(segments);
}
/// <summary>
/// Creates a new <see cref="RemapStorage"/>
/// </summary>
/// <param name="storage">A <see cref="IStorage"/> of the main data of the RemapStream.
/// The <see cref="RemapStorage"/> object assumes complete ownership of the Storage.</param>
/// <param name="header">The header for this RemapStorage.</param>
/// <param name="mapEntries">The remapping entries for this RemapStorage.</param>
/// <param name="leaveOpen"><see langword="true"/> to leave the storage open after the <see cref="RemapStorage"/> object is disposed; otherwise, <see langword="false"/>.</param>
public RemapStorage(IStorage storage, IStorage header, IStorage mapEntries, bool leaveOpen)
{
BaseStorage = storage;
HeaderStorage = header;
MapEntryStorage = mapEntries;
Header = new RemapHeader(HeaderStorage);
MapEntries = new MapEntry[Header.MapEntryCount];
var reader = new BinaryReader(MapEntryStorage.AsStream());
for (int i = 0; i < Header.MapEntryCount; i++)
{
MapEntries[i] = new MapEntry(reader);
}
if (!leaveOpen)
{
ToDispose.Add(BaseStorage);
}
Segments = InitSegments(Header, MapEntries);
}