/// <summary>
/// Deflates the decompressed bytes.
/// </summary>
/// <param name="decompressedData"> Data. </param>
/// <param name="offset"> Offset in the data. </param>
/// <param name="count"> Number of the written bytes. </param>
/// <param name="compressedSize"> Compressed size. Optional parameter, but if it is known, then passing of the parameter may increasing performance. </param>
/// <returns> Array of the compressed bytes. </returns>
public static byte[] Deflate(byte[] decompressedData, int offset, int count, int?compressedSize = null)
{
IByteArrayWriter writer = new ByteArrayWriter(true);
Deflater deflater = new Deflater(Deflater.DEFLATED);
deflater.SetInput(decompressedData, offset, count);
deflater.Finish();
int length = (compressedSize != null) ? compressedSize.Value : count;
byte[] compressedData;
int processedBytes;
while (true)
{
compressedData = new byte[length];
processedBytes = deflater.Deflate(compressedData, 0, length);
if (processedBytes != 0)
{
writer.WriteBytes(compressedData, 0, processedBytes);
}
else
{
if (deflater.IsFinished)
{
break;
}
}
}
return(writer.GetBytes());
}
/// <summary>
/// Inflates the compressed bytes.
/// </summary>
/// <param name="compressedData"> Data. </param>
/// <param name="offset"> Offset in the data. </param>
/// <param name="count"> Number of the written bytes. </param>
/// <param name="decompressedSize"> Decompressed size. Optional parameter, but if it is known, then passing of the parameter may increasing performance. </param>
/// <returns> Array of the decompressed bytes. </returns>
public static byte[] Inflate(byte[] compressedData, int offset, int count, int?decompressedSize = null)
{
IByteArrayWriter writer = new ByteArrayWriter(false);
Inflater inflater = new Inflater();
inflater.SetInput(compressedData, offset, count);
int length = (decompressedSize != null) ? decompressedSize.Value : count;
byte[] decompressedData;
int processedBytes;
while (true)
{
decompressedData = new byte[length];
processedBytes = inflater.Inflate(decompressedData, 0, length);
if (processedBytes != 0)
{
writer.WriteBytes(decompressedData, 0, processedBytes);
}
else
{
if (inflater.IsFinished)
{
break;
}
}
}
return(writer.GetBytes());
}
