public static string CompressMemory2Hex(object obj, AcedCompressionLevel level)
{
if (null == obj)
{
return(string.Empty);
}
return(ConverService.Bytes2Hex(MemoryCompress(obj, level)));
}
public static byte[] MemoryCompress(object obj, AcedCompressionLevel level)
{
byte[] objs = SerializerService.Serialize(obj);
AcedDeflator instance = new AcedDeflator();
byte[] bytes = instance.Compress(objs, 0, objs.Length, level, 0, 0);
return(bytes);
}
public static string CompressMemory2Hex(object obj, AcedCompressionLevel level)
{
if (null == obj)
{
return string.Empty;
}
return ConverService.Bytes2Hex(MemoryCompress(obj, level));
}
private void SetupCompressionLevel(AcedCompressionLevel compressionLevel)
{
switch (compressionLevel)
{
case AcedCompressionLevel.Fastest:
_hashSize = hashSizeFastest;
_hashMask = hashMaskFastest;
_prevSize = prevSizeFastest;
_prevMask = prevMaskFastest;
_maxChain = chainFastest;
_shift = shiftFastest;
break;
case AcedCompressionLevel.Fast:
_hashSize = hashSizeFast;
_hashMask = hashMaskFast;
_prevSize = prevSizeFast;
_prevMask = prevMaskFast;
_maxChain = chainFast;
_shift = shiftFast;
break;
case AcedCompressionLevel.Normal:
_hashSize = hashSizeNormal;
_hashMask = hashMaskNormal;
_prevSize = prevSizeNormal;
_prevMask = prevMaskNormal;
_maxChain = chainNormal;
_shift = shiftNormal;
break;
case AcedCompressionLevel.Maximum:
_hashSize = hashSizeMaximum;
_hashMask = hashMaskMaximum;
_prevSize = prevSizeMaximum;
_prevMask = prevMaskMaximum;
_maxChain = chainMaximum;
_shift = shiftMaximum;
break;
}
}
public unsafe int Compress(byte[] sourceBytes, int sourceIndex, int sourceLength,
AcedCompressionLevel compressionLevel, byte[] destinationBytes, int destinationIndex)
{
_tryMode = false;
if (destinationBytes != null)
_dstBreak = destinationBytes.Length - destinationIndex - 4;
else
{
_tryMode = true;
destinationBytes = _fakeDestinationBytes;
destinationIndex = 0;
_dstBreak = sourceLength;
}
if (sourceLength == 0)
{
if (!_tryMode)
{
if (_dstBreak < 0)
AcedMCException.ThrowNoPlaceToStoreCompressedDataException();
fixed (byte* pDstBytes = &destinationBytes[destinationIndex])
*((int*)pDstBytes) = 0;
}
return 4;
}
if (sourceBytes == null)
AcedMCException.ThrowArgumentNullException("sourceBytes");
_growMode = false;
if (sourceLength < _dstBreak)
_dstBreak = sourceLength;
_breakOffset = sourceLength;
fixed (byte* pSrcBytes = &sourceBytes[sourceIndex], pDstBytes = &destinationBytes[destinationIndex])
{
_pSrcBytes = pSrcBytes;
_pDstBytes = pDstBytes;
int result = -1;
if (sourceLength > 3 && compressionLevel != AcedCompressionLevel.Store)
{
SetupCompressionLevel(compressionLevel);
if (!_tryMode)
{
if (_dstBreak < 0)
AcedMCException.ThrowNoPlaceToStoreCompressedDataException();
*((int*)_pDstBytes) = sourceLength;
_pDstBytes += 4;
}
result = CompressCore();
}
if (result < 0)
{
if (!_tryMode)
{
if (_dstBreak < sourceLength)
AcedMCException.ThrowNoPlaceToStoreCompressedDataException();
*((int*)pDstBytes) = -sourceLength;
Buffer.BlockCopy(sourceBytes, sourceIndex, destinationBytes, destinationIndex + 4, sourceLength);
}
result = sourceLength;
}
return result + 4;
}
}
public unsafe byte[] Compress(byte[] sourceBytes, int sourceIndex, int sourceLength,
AcedCompressionLevel compressionLevel, int beforeGap, int afterGap)
{
if (sourceLength == 0)
return new byte[beforeGap + afterGap + 4];
if (sourceBytes == null)
AcedMCException.ThrowArgumentNullException("sourceBytes");
_growMode = true;
_tryMode = false;
_chunkList = null;
_chunk = new uint[AcedConsts.ChunkCapacity];
_chunkLength = 0;
_dstBreak = sourceLength;
_breakOffset = sourceLength;
_pDstBytes = null;
byte[] result;
fixed (byte* pSrcBytes = &sourceBytes[sourceIndex])
{
_pSrcBytes = pSrcBytes;
int outSize = -1;
if (sourceLength > 3 && compressionLevel != AcedCompressionLevel.Store)
{
SetupCompressionLevel(compressionLevel);
outSize = CompressCore();
}
if (outSize > 0)
{
result = new byte[beforeGap + 4 + outSize + afterGap];
fixed (byte* pResult = &result[beforeGap])
*((int*)pResult) = sourceLength;
beforeGap += 4;
outSize--;
int n = outSize >> AcedConsts.ChunkShift;
for (int i = 0; i < n; i++)
{
Buffer.BlockCopy((uint[])_chunkList[i], 0, result, beforeGap, AcedConsts.ChunkCapacity * 4);
beforeGap += AcedConsts.ChunkCapacity * 4;
}
Buffer.BlockCopy(_chunk, 0, result, beforeGap, (outSize & ((AcedConsts.ChunkCapacity * 4) - 1)) + 1);
_chunkList = null;
_chunk = null;
}
else
{
_chunkList = null;
_chunk = null;
result = new byte[beforeGap + 4 + sourceLength + afterGap];
fixed (byte* pResult = &result[beforeGap])
*((int*)pResult) = -sourceLength;
Buffer.BlockCopy(sourceBytes, sourceIndex, result, beforeGap + 4, sourceLength);
}
}
return result;
}
public static byte[] MemoryCompress(object obj, AcedCompressionLevel level)
{
byte[] objs = SerializerService.Serialize(obj);
AcedDeflator instance = new AcedDeflator();
byte[] bytes = instance.Compress(objs, 0, objs.Length, level, 0, 0);
return bytes;
}
