97 lines
2.1 KiB
C#
97 lines
2.1 KiB
C#
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using System.IO;
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using ICSharpCode.SharpZipLib.Zip.Compression;
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namespace ET
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{
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public static class ZipHelper
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{
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public static byte[] Compress(byte[] content)
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{
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//return content;
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Deflater compressor = new Deflater();
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compressor.SetLevel(Deflater.BEST_COMPRESSION);
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compressor.SetInput(content);
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compressor.Finish();
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using (MemoryStream bos = new MemoryStream(content.Length))
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{
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var buf = new byte[1024];
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while (!compressor.IsFinished)
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{
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int n = compressor.Deflate(buf);
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bos.Write(buf, 0, n);
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}
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return bos.ToArray();
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}
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}
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public static byte[] Decompress(byte[] content)
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{
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return Decompress(content, 0, content.Length);
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}
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public static byte[] Decompress(byte[] content, int offset, int count)
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{
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//return content;
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Inflater decompressor = new Inflater();
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decompressor.SetInput(content, offset, count);
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using (MemoryStream bos = new MemoryStream(content.Length))
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{
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var buf = new byte[1024];
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while (!decompressor.IsFinished)
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{
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int n = decompressor.Inflate(buf);
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bos.Write(buf, 0, n);
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}
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return bos.ToArray();
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}
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}
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}
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}
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/*
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using System.IO;
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using System.IO.Compression;
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namespace ET
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{
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public static class ZipHelper
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{
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public static byte[] Compress(byte[] content)
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{
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using (MemoryStream ms = new MemoryStream())
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using (DeflateStream stream = new DeflateStream(ms, CompressionMode.Compress, true))
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{
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stream.Write(content, 0, content.Length);
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return ms.ToArray();
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}
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}
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public static byte[] Decompress(byte[] content)
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{
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return Decompress(content, 0, content.Length);
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}
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public static byte[] Decompress(byte[] content, int offset, int count)
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{
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using (MemoryStream ms = new MemoryStream())
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using (DeflateStream stream = new DeflateStream(new MemoryStream(content, offset, count), CompressionMode.Decompress, true))
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{
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byte[] buffer = new byte[1024];
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while (true)
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{
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int bytesRead = stream.Read(buffer, 0, 1024);
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if (bytesRead == 0)
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{
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break;
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}
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ms.Write(buffer, 0, bytesRead);
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}
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return ms.ToArray();
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}
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}
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}
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}
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*/
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