public virtual void End()
{
lock (this)
{
inflater.Finish();
}
}
/// <summary>Release an inflater previously obtained from this cache.</summary>
/// <remarks>Release an inflater previously obtained from this cache.</remarks>
/// <param name="i">
/// the inflater to return. May be null, in which case this method
/// does nothing.
/// </param>
public static void Release(Inflater i)
{
if (i != null)
{
i.Reset();
if (ReleaseImpl(i))
{
i.Finish();
}
}
}
public void Inflate_Expand()
{
uncompressedData.Clear();
using (Inflater inf = new Inflater())
{
inf.DataAvailable += new DataAvailableHandler(DDataAvail);
inf.Add((byte[])compressedData.ToArray(typeof(byte)));
inf.Finish();
adler2 = inf.Checksum;
}
Assert.AreEqual(adler1, adler2);
}
/// <exception cref="System.IO.IOException"></exception>
public DeflateInputStream(InputStream wrapped)
{
byte[] peeked = new byte[6];
PushbackInputStream pushback = new PushbackInputStream(wrapped, peeked.Length);
int headerLength = pushback.Read(peeked);
if (headerLength == -1)
{
throw new IOException("Unable to read the response");
}
byte[] dummy = new byte[1];
Inflater inf = new Inflater();
try
{
int n;
while ((n = inf.Inflate(dummy)) == 0)
{
if (inf.IsFinished)
{
throw new IOException("Unable to read the response");
}
if (inf.NeedsDictionary())
{
break;
}
if (inf.IsNeedingInput)
{
inf.SetInput(peeked);
}
}
if (n == -1)
{
throw new IOException("Unable to read the response");
}
pushback.Unread(peeked, 0, headerLength);
sourceStream = new DeflateInputStream.DeflateStream(pushback, new Inflater());
}
catch (SharpZipBaseException)
{
pushback.Unread(peeked, 0, headerLength);
sourceStream = new DeflateInputStream.DeflateStream(pushback, new Inflater(true));
}
finally
{
inf.Finish();
}
}
/// <summary>
/// Decompress a stream with ZLib
/// </summary>
/// <param name="compressLevel">Compression level of stream</param>
/// <param name="expectedSize">Expected size</param>
public static void Decompress(out CompressLevel compressLevel, int expectedSize = 0)
{
uint numBytesAddressing = ZLibWrapper.InputBufferLength;
compressLevel = CompressLevel.None;
try
{
ZLibWrapper.Position(0, ZLibBufferType.InputBuffer);
compressLevel = RetrieveCompressionLevel();
ZLibWrapper.Position(0, ZLibBufferType.InputBuffer);
if (expectedSize == 0)
{
// no decompression. copy input buffer in output buffer
ZLibWrapper.CopyInputBufferToOutputBuffer(8);
compressLevel = CompressLevel.None; // for compression
}
else
{
if (_inflater == null)
{
_inflater = new Inflater();
_inflater.DataAvailable += ZLibWrapper.WriteInOutputBuffer;
}
while (numBytesAddressing > 0u)
{
uint numBytes = Math.Min(numBytesAddressing, 8192u); //8192u); 65536u
_inflater.Add(ZLibWrapper.ReadBytes((int)numBytes, ZLibBufferType.InputBuffer));
numBytesAddressing -= numBytes;
}
string inflateErrorMsg = _inflater._ztream.msg;
if (!string.IsNullOrWhiteSpace(inflateErrorMsg))
{
MessageBox.Show(string.Format("ZLib.Decompress: {0}", inflateErrorMsg),
TranslateUI.TranslateUiGlobalization.ResManager.GetString("ZLib_Error"),
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
_inflater.Finish(); //flush zlib buffer
}
ZLibWrapper.Position(0, ZLibBufferType.OutputBuffer);
}
catch (Exception ex)
{
MessageBox.Show(
string.Format(TranslateUI.TranslateUiGlobalization.ResManager.GetString(name: "MSG_ErrorWithNewLine"), ex),
TranslateUI.TranslateUiGlobalization.ResManager.GetString(name: "ZLib_Decompress"),
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
if (ZLibWrapper.OutputBufferLength == 0)
{
MessageBox.Show(
TranslateUI.TranslateUiGlobalization.ResManager.GetString(name: "ZLib_OutputBufferEmpty"),
TranslateUI.TranslateUiGlobalization.ResManager.GetString(name: "ZLib_Decompress"),
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
