public AllocationTableStream(Stream data, AllocationTable table, int blockSize, int initialBlock, long length)
{
Data = data;
BlockSize = blockSize;
Length = length;
Iterator = new AllocationTableIterator(table, initialBlock);
Data.Position = Iterator.PhysicalBlock * BlockSize;
}
public AllocationTableIterator(AllocationTable table, int initialBlock)
{
Fat = table;
if (!BeginIteration(initialBlock))
{
throw new ArgumentException($"Attempted to start FAT iteration from an invalid block. ({initialBlock}");
}
}
public Savefile(Keyset keyset, Stream file, bool enableIntegrityChecks)
{
SavefileSource = new SharedStreamSource(file);
using (var reader = new BinaryReader(SavefileSource.CreateStream(), Encoding.Default, true))
{
Header = new Header(keyset, reader);
FsLayout layout = Header.Layout;
FileRemap = new RemapStream(
SavefileSource.CreateStream(layout.FileMapDataOffset, layout.FileMapDataSize),
Header.FileMapEntries, Header.FileRemap.MapSegmentCount);
FileRemapSource = new SharedStreamSource(FileRemap);
var duplexLayers = new DuplexFsLayerInfo[3];
duplexLayers[0] = new DuplexFsLayerInfo
{
DataA = new MemoryStream(Header.DuplexMasterA),
DataB = new MemoryStream(Header.DuplexMasterB),
Info = Header.Duplex.Layers[0]
};
duplexLayers[1] = new DuplexFsLayerInfo
{
DataA = FileRemapSource.CreateStream(layout.DuplexL1OffsetA, layout.DuplexL1Size),
DataB = FileRemapSource.CreateStream(layout.DuplexL1OffsetB, layout.DuplexL1Size),
Info = Header.Duplex.Layers[1]
};
duplexLayers[2] = new DuplexFsLayerInfo
{
DataA = FileRemapSource.CreateStream(layout.DuplexDataOffsetA, layout.DuplexDataSize),
DataB = FileRemapSource.CreateStream(layout.DuplexDataOffsetB, layout.DuplexDataSize),
Info = Header.Duplex.Layers[2]
};
DuplexL1A = FileRemapSource.CreateStream(layout.DuplexL1OffsetA, layout.DuplexL1Size);
DuplexL1B = FileRemapSource.CreateStream(layout.DuplexL1OffsetB, layout.DuplexL1Size);
DuplexDataA = FileRemapSource.CreateStream(layout.DuplexDataOffsetA, layout.DuplexDataSize);
DuplexDataB = FileRemapSource.CreateStream(layout.DuplexDataOffsetB, layout.DuplexDataSize);
JournalData = FileRemapSource.CreateStream(layout.JournalDataOffset, layout.JournalDataSizeB + layout.SizeReservedArea);
DuplexData = new LayeredDuplexFs(duplexLayers, Header.Layout.DuplexIndex == 1);
MetaRemap = new RemapStream(DuplexData, Header.MetaMapEntries, Header.MetaRemap.MapSegmentCount);
MetaRemapSource = new SharedStreamSource(MetaRemap);
JournalTable = MetaRemapSource.CreateStream(layout.JournalTableOffset, layout.JournalTableSize);
JournalBitmapUpdatedPhysical = MetaRemapSource.CreateStream(layout.JournalBitmapUpdatedPhysicalOffset, layout.JournalBitmapUpdatedPhysicalSize);
JournalBitmapUpdatedVirtual = MetaRemapSource.CreateStream(layout.JournalBitmapUpdatedVirtualOffset, layout.JournalBitmapUpdatedVirtualSize);
JournalBitmapUnassigned = MetaRemapSource.CreateStream(layout.JournalBitmapUnassignedOffset, layout.JournalBitmapUnassignedSize);
JournalLayer1Hash = MetaRemapSource.CreateStream(layout.IvfcL1Offset, layout.IvfcL1Size);
JournalLayer2Hash = MetaRemapSource.CreateStream(layout.IvfcL2Offset, layout.IvfcL2Size);
JournalLayer3Hash = MetaRemapSource.CreateStream(layout.IvfcL3Offset, layout.IvfcL3Size);
JournalFat = MetaRemapSource.CreateStream(layout.FatOffset, layout.FatSize);
AllocationTable = new AllocationTable(JournalFat);
MappingEntry[] journalMap = JournalStream.ReadMappingEntries(JournalTable, Header.Journal.MainDataBlockCount);
SharedStream journalData = FileRemapSource.CreateStream(layout.JournalDataOffset,
layout.JournalDataSizeB + layout.SizeReservedArea);
JournalStream = new JournalStream(journalData, journalMap, (int)Header.Journal.BlockSize);
JournalStreamSource = new SharedStreamSource(JournalStream);
IvfcStream = InitIvfcStream(enableIntegrityChecks);
IvfcStreamSource = new SharedStreamSource(IvfcStream);
ReadFileInfo();
var dictionary = new Dictionary <string, FileEntry>();
foreach (FileEntry entry in Files)
{
dictionary[entry.FullPath] = entry;
}
FileDict = dictionary;
}
}