2009-12-09 19:58:32 +01:00
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/* This file is part of TransmitMii
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* Copyright (C) 2009 Leathl
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*
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* TransmitMii is free software: you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* TransmitMii is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.IO;
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using System.Runtime.InteropServices;
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namespace TransmitMii
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{
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public static class zlib
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{
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public enum ZLibError : int
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{
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Z_OK = 0,
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Z_STREAM_END = 1,
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Z_NEED_DICT = 2,
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Z_ERRNO = (-1),
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Z_STREAM_ERROR = (-2),
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Z_DATA_ERROR = (-3),
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Z_MEM_ERROR = (-4),
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Z_BUF_ERROR = (-5),
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Z_VERSION_ERROR = (-6)
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}
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[DllImport("zlib1.dll")]
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2010-01-09 18:32:53 +01:00
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private static extern ZLibError compress2(byte[] dest, ref int destLength, byte[] source, int sourceLength, int level);
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2009-12-09 19:58:32 +01:00
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public static byte[] Compress(byte[] inFile)
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{
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ZLibError err;
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byte[] outFile = new byte[inFile.Length];
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int outLength = -1;
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err = compress2(outFile, ref outLength, inFile, inFile.Length, 6);
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2010-04-18 21:12:08 +02:00
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if (err == ZLibError.Z_OK && (outLength > -1 && outLength < inFile.Length))
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2009-12-09 19:58:32 +01:00
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{
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Array.Resize(ref outFile, outLength);
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return outFile;
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}
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else
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throw new Exception("An error occured while compressing! Code: " + err.ToString());
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}
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}
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}
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