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//------------------------------------------------------------

// Game Framework v3.x

// Copyright © 2013-2018 Jiang Yin. All rights reserved.

// Homepage: http://gameframework.cn/

// Feedback: mailto:jiangyin@gameframework.cn

//------------------------------------------------------------

using GameFramework;

using ICSharpCode.SharpZipLib.GZip;

using System.IO;

namespace UnityGameFramework.Runtime

{

/// <summary>

/// 压缩解压缩辅助器。

/// </summary>

internal class ZipHelper : Utility.Zip.IZipHelper

{

/// <summary>

/// 压缩数据。

/// </summary>

/// <param name="bytes">要压缩的数据。</param>

/// <returns>压缩后的数据。</returns>

public byte[] Compress(byte[] bytes)

{

Log.Fatal("Compress is not implemented.");

return null;

}

/// <summary>

/// 解压缩数据。

/// </summary>

/// <param name="bytes">要解压缩的数据。</param>

/// <returns>解压缩后的数据。</returns>

public byte[] Decompress(byte[] bytes)

{

if (bytes == null || bytes.Length <= 0)

{

return bytes;

}

MemoryStream decompressedStream = null;

MemoryStream memoryStream = null;

try

{

decompressedStream = new MemoryStream();

memoryStream = new MemoryStream(bytes);

using (GZipInputStream gZipInputStream = new GZipInputStream(memoryStream))

{

memoryStream = null;

int bytesRead = 0;

byte[] clip = new byte[0x1000];

while ((bytesRead = gZipInputStream.Read(clip, 0, clip.Length)) != 0)

{

decompressedStream.Write(clip, 0, bytesRead);

}

}

return decompressedStream.ToArray();

}

finally

{

if (decompressedStream != null)

{

decompressedStream.Dispose();

decompressedStream = null;

}

if (memoryStream != null)

{

memoryStream.Dispose();

memoryStream = null;

}

}

}

}

}