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ZlibProvider.cs
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ZlibProvider.cs
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/*
* This file is part of Project Hybrasyl.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the Affero General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but
* without ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Affero General Public License
* for more details.
*
* You should have received a copy of the Affero General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* (C) 2015 Kyle Speck ([email protected])
*
* Authors: Kyle Speck <[email protected]>
*
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using zlib;
namespace HybrasylEditor
{
public static class ZlibProvider
{
public static byte[] Decompress(byte[] data)
{
MemoryStream memoryStream1 = new MemoryStream();
ZOutputStream zoutputStream = new ZOutputStream(memoryStream1);
MemoryStream memoryStream2 = new MemoryStream(data);
try
{
ZlibProvider.CopyStream(memoryStream2, zoutputStream);
zoutputStream.finish();
data = memoryStream1.ToArray();
}
finally
{
zoutputStream.Close();
memoryStream1.Close();
memoryStream2.Close();
}
return data;
}
public static byte[] Compress(byte[] data, ZlibLevel level = ZlibLevel.DEFAULT)
{
MemoryStream memoryStream1 = new MemoryStream();
ZOutputStream zoutputStream = new ZOutputStream(memoryStream1, (int)level);
MemoryStream memoryStream2 = new MemoryStream(data);
try
{
ZlibProvider.CopyStream(memoryStream2, zoutputStream);
zoutputStream.finish();
data = memoryStream1.ToArray();
}
finally
{
zoutputStream.Close();
memoryStream1.Close();
memoryStream2.Close();
}
return data;
}
private static void CopyStream(Stream input, Stream output)
{
byte[] buffer = new byte[2000];
int count;
while ((count = input.Read(buffer, 0, 2000)) > 0)
output.Write(buffer, 0, count);
output.Flush();
}
}
public enum ZlibLevel
{
DEFAULT = -1,
BEST = 9,
}
}