private void WriteBlock(byte[] writeBuff, ref ushort engaged, ref int uncompressedSize)
{
uncompressedSize += engaged;
byte[] encoding = ZtrFileEncoding.CompressZtrContent(writeBuff, 0, ref engaged);
_output.Write(encoding, 0, encoding.Length);
_output.Write(writeBuff, 0, engaged);
engaged = 0;
}
public void Unpack(int compressedSize)
{
if (compressedSize < 1)
{
return;
}
int index = 0, blockNumber = 0;
using (MemoryStream io = new MemoryStream(32768))
{
byte[] readBuff = new byte[4096];
while (compressedSize > 0)
{
int offset = 0;
ZtrFileEncoding tagsEncoding = ZtrFileEncoding.ReadFromStream(_input);
compressedSize = compressedSize - tagsEncoding.BlockSize - 4;
long blockOffset = _input.Position;
while (offset < 4096 && compressedSize > 0)
{
while (index < _offsets.Length && _offsets[index].Block == blockNumber && _input.Position - blockOffset == _offsets[index].PackedOffset)
{
_offsets[index].UnpackedOffset = (int)(io.Position + offset + _offsets[index].BlockOffset);
if (index > 0)
{
_offsets[index - 1].UnpackedLength = _offsets[index].UnpackedOffset - _offsets[index - 1].UnpackedOffset;
}
index++;
}
int value = _input.ReadByte();
byte[] replace = tagsEncoding.Encoding[value];
Array.Copy(replace, 0, readBuff, offset, replace.Length);
offset += replace.Length;
compressedSize--;
}
io.Write(readBuff, 0, offset);
blockNumber++;
}
_offsets[index - 1].UnpackedLength = (int)(io.Position - _offsets[index - 1].UnpackedOffset);
for (int i = 0; i < _offsets.Length; i++)
{
io.SetPosition(_offsets[i].UnpackedOffset);
byte[] buff = io.EnsureRead(_offsets[i].UnpackedLength);
_output[i].Value = _encoding.GetString(buff, 0, buff.Length - 2);
}
}
}
private void WriteBlock(byte[] writeBuff, ref ushort engaged, ushort[,] innerOffsets, List <int> blockOffsets)
{
byte[] encoding = ZtrFileEncoding.FakeCompression(writeBuff, 0, ref engaged, innerOffsets, _innerIndex, _innerCount);
_output.Write(encoding, 0, encoding.Length);
_output.Write(writeBuff, 0, engaged);
_blockOffset += encoding.Length;
_blockOffset += engaged;
_blockNumber = checked ((byte)(_blockNumber + 1));
_innerIndex += _innerCount;
_innerCount = 0;
blockOffsets.Add(_blockOffset);
engaged = 0;
}
public void Unpack(int uncompressedSize)
{
int index = 0, lastOffset = 0;
byte[] readBuff = new byte[Math.Min(uncompressedSize, 4096)];
byte[] codeBuff = new byte[readBuff.Length * 2];
while (uncompressedSize > 0)
{
int offset = 0;
ZtrFileEncoding tagsEncoding = ZtrFileEncoding.ReadFromStream(_input);
while (offset < 4096 && uncompressedSize > 0)
{
int value = _input.ReadByte();
byte[] replace = tagsEncoding.Encoding[value];
Array.Copy(replace, 0, readBuff, offset, replace.Length);
offset += replace.Length;
uncompressedSize -= replace.Length;
}
// Выбираем полные строки
Array.Copy(readBuff, 0, codeBuff, lastOffset, offset);
int initial = 0, length = offset + lastOffset;
for (int i = lastOffset; i < length; i++)
{
if (codeBuff[i] == 0)
{
_output[index++].Key = Encoding.ASCII.GetString(codeBuff, initial, i - initial);
initial = i + 1;
}
}
if (initial == 0)
{
throw new NotImplementedException();
}
lastOffset = length - initial;
Array.Copy(codeBuff, initial, codeBuff, 0, lastOffset);
}
}
