// Zlib.cs
// ------------------------------------------------------------------
//
// Copyright (c) 2009-2011 Dino Chiesa and Microsoft Corporation.
// All rights reserved.
//
// This code module is part of DotNetZip, a zipfile class library.
//
// ------------------------------------------------------------------
//
// This code is licensed under the Microsoft Public License.
// See the file License.txt for the license details.
// More info on: http://dotnetzip.codeplex.com
//
// ------------------------------------------------------------------
//
// Last Saved: <2011-August-03 19:52:28>
//
// ------------------------------------------------------------------
//
// This module defines classes for ZLIB compression and
// decompression. This code is derived from the jzlib implementation of
// zlib, but significantly modified.  The object model is not the same,
// and many of the behaviors are new or different.  Nonetheless, in
// keeping with the license for jzlib, the copyright to that code is
// included below.
//
// ------------------------------------------------------------------
//
// The following notice applies to jzlib:
//
// Copyright (c) 2000,2001,2002,2003 ymnk, JCraft,Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in
// the documentation and/or other materials provided with the distribution.
//
// 3. The names of the authors may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JCRAFT,
// INC. OR ANY CONTRIBUTORS TO THIS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
// OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// -----------------------------------------------------------------------
//
// jzlib is based on zlib-1.1.3.
//
// The following notice applies to zlib:
//
// -----------------------------------------------------------------------
//
// Copyright (C) 1995-2004 Jean-loup Gailly and Mark Adler
//
//   The ZLIB software is provided 'as-is', without any express or implied
//   warranty.  In no event will the authors be held liable for any damages
//   arising from the use of this software.
//
//   Permission is granted to anyone to use this software for any purpose,
//   including commercial applications, and to alter it and redistribute it
//   freely, subject to the following restrictions:
//
//   1. The origin of this software must not be misrepresented; you must not
//      claim that you wrote the original software. If you use this software
//      in a product, an acknowledgment in the product documentation would be
//      appreciated but is not required.
//   2. Altered source versions must be plainly marked as such, and must not be
//      misrepresented as being the original software.
//   3. This notice may not be removed or altered from any source distribution.
//
//   Jean-loup Gailly jloup@gzip.org
//   Mark Adler madler@alumni.caltech.edu
//
// -----------------------------------------------------------------------

namespace SabreTools.IO.Compression.Deflate
{
    /// <summary>
    /// The compression level to be used when using a DeflateStream or ZlibStream with CompressionMode.Compress.
    /// </summary>
    public enum CompressionLevel
    {
        /// <summary>
        /// None means that the data will be simply stored, with no change at all.
        /// If you are producing ZIPs for use on Mac OSX, be aware that archives produced with CompressionLevel.None
        /// cannot be opened with the default zip reader. Use a different CompressionLevel.
        /// </summary>
        None = 0,
        /// <summary>
        /// Same as None.
        /// </summary>
        Level0 = 0,

        /// <summary>
        /// The fastest but least effective compression.
        /// </summary>
        BestSpeed = 1,

        /// <summary>
        /// A synonym for BestSpeed.
        /// </summary>
        Level1 = 1,

        /// <summary>
        /// A little slower, but better, than level 1.
        /// </summary>
        Level2 = 2,

        /// <summary>
        /// A little slower, but better, than level 2.
        /// </summary>
        Level3 = 3,

        /// <summary>
        /// A little slower, but better, than level 3.
        /// </summary>
        Level4 = 4,

        /// <summary>
        /// A little slower than level 4, but with better compression.
        /// </summary>
        Level5 = 5,

        /// <summary>
        /// The default compression level, with a good balance of speed and compression efficiency.
        /// </summary>
        Default = 6,
        /// <summary>
        /// A synonym for Default.
        /// </summary>
        Level6 = 6,

        /// <summary>
        /// Pretty good compression!
        /// </summary>
        Level7 = 7,

        /// <summary>
        ///  Better compression than Level7!
        /// </summary>
        Level8 = 8,

        /// <summary>
        /// The "best" compression, where best means greatest reduction in size of the input data stream.
        /// This is also the slowest compression.
        /// </summary>
        BestCompression = 9,

        /// <summary>
        /// A synonym for BestCompression.
        /// </summary>
        Level9 = 9,
    }
}