public List<byte[]> GetBlocks(int Index)
{
List<byte[]> res = new List<byte[]>();
FileEntryStruct e = Files[Index];
uint count = 0;
byte[] inputBlock;
byte[] outputBlock = new byte[Header.MaxBlockSize];
long left = e.RealUncompressedSize;
FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
fs.Seek(e.BlockOffsets[0], SeekOrigin.Begin);
byte[] buff;
if (e.BlockSizeIndex == 0xFFFFFFFF)
{
buff = new byte[e.RealUncompressedSize];
fs.Read(buff, 0, buff.Length);
res.Add(buff);
fs.Close();
return res;
}
else
{
while (left > 0)
{
uint compressedBlockSize = e.BlockSizes[count];
if (compressedBlockSize == 0)
compressedBlockSize = Header.MaxBlockSize;
if (compressedBlockSize == Header.MaxBlockSize || compressedBlockSize == left)
{
buff = new byte[compressedBlockSize];
fs.Read(buff, 0, buff.Length);
res.Add(buff);
left -= compressedBlockSize;
}
else
{
var uncompressedBlockSize = (uint)Math.Min(left, Header.MaxBlockSize);
if (compressedBlockSize < 5)
{
throw new Exception("compressed block size smaller than 5");
}
inputBlock = new byte[compressedBlockSize];
fs.Read(inputBlock, 0, (int)compressedBlockSize);
res.Add(inputBlock);
left -= uncompressedBlockSize;
}
count++;
}
}
fs.Close();
return res;
}