- FastLZ: 删除FastLZ类，源码见：https://gitee.com/yhuse/SunnyUI/blob/V3.6.7/SunnyUI/Common/UFastLZ.cs
可参考项目: https://www.nuget.org/packages/DotFastLZ.Compression
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Sunny
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/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2024 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UCompress.cs
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* 文件说明: 数据帧压缩类
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* 当前版本: V3.4
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* 创建日期: 2023-07-17
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*
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* 2023-07-17: V3.4.0 增加文件说明
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******************************************************************************/
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using System;
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using System.Runtime.InteropServices;
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namespace Sunny.UI
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{
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public enum DataFrameCompressType
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{
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[DisplayText("None")]
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None = 0,
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[DisplayText("FastLZ")]
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FastLZ = 1,
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[DisplayText("ZLib")]
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ZLib = 2,
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[DisplayText("GZip")]
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GZip = 3,
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[DisplayText("Deflate")]
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Deflate = 4
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 1)]
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public struct DataFrame
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{
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public DateTime DateTime;
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public byte[] Data;
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public int Index;
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public int CRC;
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public DataFrame(DateTime dateTime, byte[] data, int index, int crc)
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{
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DateTime = dateTime;
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Data = data;
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Index = index;
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CRC = crc;
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}
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public static DataFrame Empty()
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{
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#if NET40
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return new DataFrame(DateTime.MinValue, new byte[0], -1, 0);
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#else
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return new DataFrame(DateTime.MinValue, Array.Empty<byte>(), -1, 0);
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#endif
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}
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}
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public static class DataFrameCompressHelper
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{
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public static byte[] Compress(DataFrame frame, DataFrameCompressType compressType, out int compressedLength, out int decompressLength)
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{
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byte[] compressed;
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decompressLength = frame.Data.Length;
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switch (compressType)
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{
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case DataFrameCompressType.None:
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compressed = frame.Data;
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break;
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case DataFrameCompressType.FastLZ:
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if (FastLZ.CheckFastLZDll())
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{
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compressed = FastLZ.Compress(frame.Data, 0, frame.Data.Length);
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decompressLength = Math.Max(frame.Data.Length * 2, 66);
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}
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else
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{
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throw new NullReferenceException("FastLZx86.dll and FastLZx64.dll not exists.");
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}
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break;
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case DataFrameCompressType.ZLib:
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compressed = frame.Data.ZLibCompress();
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break;
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case DataFrameCompressType.GZip:
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compressed = frame.Data.GZipCompress();
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break;
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case DataFrameCompressType.Deflate:
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compressed = frame.Data.DeflateCompress();
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break;
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default:
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compressed = frame.Data;
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break;
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}
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compressedLength = compressed.Length;
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return compressed;
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}
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public static byte[] Decompress(byte[] package, DataFrameCompressType compressType, int decompressLength)
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{
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byte[] data;
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switch (compressType)
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{
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case DataFrameCompressType.None:
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data = package;
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break;
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case DataFrameCompressType.FastLZ:
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if (FastLZ.CheckFastLZDll())
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{
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data = FastLZ.Decompress(package, 0, package.Length, decompressLength);
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}
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else
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{
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throw new NullReferenceException("FastLZx86.dll and FastLZx64.dll not exists.");
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}
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break;
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case DataFrameCompressType.ZLib:
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data = package.ZLibDecompress();
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break;
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case DataFrameCompressType.GZip:
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data = package.GZipDecompress();
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break;
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case DataFrameCompressType.Deflate:
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data = package.DeflateDecompress();
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break;
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default:
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data = package;
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break;
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}
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return data;
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}
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}
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}
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@ -1,356 +0,0 @@
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/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2024 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: FastLZ.cs
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* 文件说明: FastLZ压缩解压类
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* 当前版本: V3.1
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* 创建日期: 2022-03-31
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* 引用地址: https://ariya.github.io/FastLZ/
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*
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* FastLZ (MIT license) is an ANSI C/C90 implementation of Lempel-Ziv 77
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* algorithm (LZ77) of lossless data compression. It is suitable to compress
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* series of text/paragraphs, sequences of raw pixel data, or any other blocks
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* of data with lots of repetition. It is not intended to be used on images,
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* videos, and other formats of data typically already in an optimal
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* compressed form.
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*
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* 2022-03-31: V3.1.2 增加文件说明
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* 2022-07-07: V3.2.1 增加了扩展的自定义压缩解压方法
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* 2022-07-07: V3.2.1 增加内置FastLZx86.dll、FastLZx64.dll资源文件
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******************************************************************************
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* 压缩函数
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* int fastlz_compress_level(int level, const void* input, int length, void* output);
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*
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* level： 压缩级别，目前，仅支持级别1和级别2。
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* 级别1是最快的压缩，通常对短数据有用。
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* 级别2稍微慢一点，但它提供了更好的压缩比。
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* 无论级别如何，压缩数据都可以使用下面的函数fastlz_decompress进行解压缩。
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*
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* input： 输入缓冲区，用于存放要压缩的数据。
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* length： 输入缓冲区的大小，最小输入缓冲区大小为16。
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* output： 输出缓冲区，用于存放压缩后的数据。输出缓冲区必须至少比输入缓冲区大5%，并且不能小于66字节。
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*
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* 返回值是压缩后的数据大小，如果输入不可压缩，则返回值可能大于长度。注意，输入缓冲区和输出缓冲区不能重叠。
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******************************************************************************
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* 解压函数
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* int fastlz_decompress(const void* input, int length, void* output, int maxout);
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*
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* input： 输入缓冲区，用于存放要解压的数据。
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* length： 输入缓冲区的长度。
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* output： 输出缓冲区，用于存放解压后的数据。
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* maxout： 输出缓冲区的所能容纳的最大长度。解压时会保证输出缓冲区的写入量不会超过maxout中指定的值。
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*
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* 返回值是解压后的数据大小。如果发生错误，例如压缩数据损坏或输出缓冲区不够大，则将返回0。
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* 注意，输入缓冲区和输出缓冲区不能重叠。
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******************************************************************************
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* 扩展CompressEx，DecompressEx
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* 扩展压缩结果增加16个字节头部和8个字节尾部，以!开头，\r\n结尾
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* 20个字节头部:
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* 4字节标识(!FLZ)
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* 4字节时间戳高位，精确到秒Seconds，这是Unix时间戳，以Jan1st1970开始的秒数（可空）
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* 4字节时间戳低位，能够精确到毫秒Milliseconds（可空）
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* 4字节(输出缓冲区的所能容纳的最大长度maxout)
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* 4字节(当前数据大小)
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* 8个字节尾部:
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* 4字节序号（可空）
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* 1字节(*)
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* 1字节(CRC,累加和,0不判断)
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* 2字节(\r\n)
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******************************************************************************
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* FastLZx86.dll、FastLZx64.dll见项目 https://gitee.com/yhuse/SunnyUI.FastLZ
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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 Sunny.UI
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{
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public static unsafe class FastLZx86
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{
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[DllImport("FastLZx86.dll", EntryPoint = "FastLZ_Compress", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Compress(void* input, int length, void* output);
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[DllImport("FastLZx86.dll", EntryPoint = "FastLZ_Compress_level", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Compress_level(int level, void* input, int length, void* output);
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[DllImport("FastLZx86.dll", EntryPoint = "FastLZ_Decompress", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Decompress(void* input, int length, void* output, int maxout);
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}
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public static unsafe class FastLZx64
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{
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[DllImport("FastLZx64.dll", EntryPoint = "FastLZ_Compress", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Compress(void* input, int length, void* output);
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[DllImport("FastLZx64.dll", EntryPoint = "FastLZ_Compress_level", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Compress_level(int level, void* input, int length, void* output);
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[DllImport("FastLZx64.dll", EntryPoint = "FastLZ_Decompress", CallingConvention = CallingConvention.Cdecl)]
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public static extern int FastLZ_Decompress(void* input, int length, void* output, int maxout);
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}
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public enum FastLZCompressionLevel
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{
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Level1 = 1,
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Level2 = 2
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}
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/// <summary>
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/// FastLZ压缩解压类
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/// </summary>
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public static unsafe class FastLZ
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{
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/// <summary>
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/// 是否64位
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/// </summary>
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/// <returns></returns>
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private static bool Is64bitApp()
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{
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return IntPtr.Size == 8;
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}
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/// <summary>
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/// 压缩(原生）
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/// </summary>
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/// <param name="input">输入</param>
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/// <param name="begin">起始位置</param>
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/// <param name="length">长度</param>
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/// <returns>压缩结果</returns>
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public static byte[] Compress(byte[] input, int begin, int length)
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{
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CheckFastLZDll();
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byte[] output = new byte[Math.Max(length * 2, 66)];
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fixed (void* pSrc1 = &input[begin])
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fixed (void* pSrc2 = output)
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{
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int outlen = Is64bitApp() ? FastLZx64.FastLZ_Compress(pSrc1, length, pSrc2) : FastLZx86.FastLZ_Compress(pSrc1, length, pSrc2);
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byte[] result = new byte[outlen];
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Array.Copy(output, 0, result, 0, outlen);
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return result;
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}
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}
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/// <summary>
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/// 压缩(原生）
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/// </summary>
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/// <param name="level">压缩级别</param>
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/// <param name="input">输入</param>
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/// <param name="begin">起始位置</param>
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/// <param name="length">长度</param>
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/// <returns>压缩结果</returns>
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public static byte[] Compress(FastLZCompressionLevel level, byte[] input, int begin, int length)
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{
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CheckFastLZDll();
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byte[] output = new byte[Math.Max(length * 2, 66)];
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fixed (void* pSrc1 = &input[begin])
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fixed (void* pSrc2 = output)
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{
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int outlen = Is64bitApp() ? FastLZx64.FastLZ_Compress_level((int)level, pSrc1, length, pSrc2) : FastLZx86.FastLZ_Compress_level((int)level, pSrc1, length, pSrc2);
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byte[] result = new byte[outlen];
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Array.Copy(output, 0, result, 0, outlen);
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return result;
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}
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}
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/// <summary>
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/// 解压缩(原生）
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/// </summary>
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/// <param name="input">输入</param>
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/// <param name="begin">起始位置</param>
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/// <param name="length">长度</param>
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/// <param name="maxout">解压结果最大长度</param>
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/// <returns>解压缩结果</returns>
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public static byte[] Decompress(byte[] input, int begin, int length, int maxout)
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{
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CheckFastLZDll();
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byte[] output = new byte[maxout + 66];
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fixed (byte* pSrc1 = &input[begin])
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fixed (byte* pSrc2 = output)
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{
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int outlen = Is64bitApp() ? FastLZx64.FastLZ_Decompress(pSrc1, length, pSrc2, output.Length) : FastLZx86.FastLZ_Decompress(pSrc1, length, pSrc2, output.Length);
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byte[] result = new byte[outlen];
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Array.Copy(output, 0, result, 0, outlen);
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return result;
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}
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}
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private static byte[] ExHead = "!FLZ".ToEnBytes(4);
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private const int ExHeadAllLength = 20;
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private const int ExTailAllLength = 8;
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private static DateTime Jan1st1970 = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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||||||
/// <summary>
|
|
||||||
/// 压缩(扩展）
|
|
||||||
/// </summary>
|
|
||||||
/// <param name="input">输入</param>
|
|
||||||
/// <param name="begin">起始位置</param>
|
|
||||||
/// <param name="length">长度</param>
|
|
||||||
/// <param name="datetime">时间</param>
|
|
||||||
/// <param name="index">索引</param>
|
|
||||||
/// <returns>压缩结果</returns>
|
|
||||||
public static byte[] CompressEx(byte[] input, int begin, int length, DateTime dateTime, int index)
|
|
||||||
{
|
|
||||||
CheckFastLZDll();
|
|
||||||
byte[] result = CompressEx(input, begin, length);
|
|
||||||
if (result.Length > 0)
|
|
||||||
{
|
|
||||||
TimeSpan span = dateTime - Jan1st1970;
|
|
||||||
int totalSeconds = (int)span.TotalSeconds;
|
|
||||||
int milliseconds = span.Milliseconds;
|
|
||||||
Array.Copy(BitConverter.GetBytes(totalSeconds), 0, result, 4, 4);
|
|
||||||
Array.Copy(BitConverter.GetBytes(milliseconds), 0, result, 8, 4);
|
|
||||||
Array.Copy(BitConverter.GetBytes(index), 0, result, result.Length - 8, 4);
|
|
||||||
}
|
|
||||||
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// 压缩(扩展）
|
|
||||||
/// </summary>
|
|
||||||
/// <param name="input">输入</param>
|
|
||||||
/// <param name="begin">起始位置</param>
|
|
||||||
/// <param name="length">长度</param>
|
|
||||||
/// <returns>压缩结果</returns>
|
|
||||||
public static byte[] CompressEx(byte[] input, int begin, int length)
|
|
||||||
{
|
|
||||||
CheckFastLZDll();
|
|
||||||
byte[] result = new byte[0];
|
|
||||||
if (begin + length > input.Length) return result;
|
|
||||||
byte[] output = new byte[Math.Max(length * 2, 66)];
|
|
||||||
fixed (void* pSrc1 = &input[begin])
|
|
||||||
fixed (void* pSrc2 = output)
|
|
||||||
{
|
|
||||||
int outlen = Is64bitApp() ? FastLZx64.FastLZ_Compress(pSrc1, length, pSrc2) : FastLZx86.FastLZ_Compress(pSrc1, length, pSrc2);
|
|
||||||
result = new byte[outlen + ExHeadAllLength + ExTailAllLength];
|
|
||||||
|
|
||||||
Array.Copy(ExHead, 0, result, 0, ExHead.Length);
|
|
||||||
Array.Copy(BitConverter.GetBytes((int)0), 0, result, 4, 4);
|
|
||||||
Array.Copy(BitConverter.GetBytes((int)0), 0, result, 8, 4);
|
|
||||||
Array.Copy(BitConverter.GetBytes((int)output.Length), 0, result, 12, 4);
|
|
||||||
Array.Copy(BitConverter.GetBytes((int)outlen), 0, result, 16, 4);
|
|
||||||
|
|
||||||
Array.Copy(output, 0, result, ExHeadAllLength, outlen);
|
|
||||||
Array.Copy(BitConverter.GetBytes((int)0), 0, result, result.Length - 8, 4);
|
|
||||||
|
|
||||||
result[result.Length - 4] = 42; //*
|
|
||||||
result[result.Length - 3] = 0; //CRC
|
|
||||||
result[result.Length - 2] = 13; //\r
|
|
||||||
result[result.Length - 1] = 10; //\n
|
|
||||||
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// 解压缩(扩展）
|
|
||||||
/// </summary>
|
|
||||||
/// <param name="input">输入</param>
|
|
||||||
/// <param name="begin">起始位置</param>
|
|
||||||
/// <param name="length">长度</param>
|
|
||||||
/// <returns>解压缩结果</returns>
|
|
||||||
public static byte[] DecompressEx(byte[] input, int begin, int length)
|
|
||||||
{
|
|
||||||
CheckFastLZDll();
|
|
||||||
byte[] result = new byte[0];
|
|
||||||
if (input.Length <= 2 + ExHeadAllLength + ExTailAllLength) return result;
|
|
||||||
if (begin + length > input.Length) return result;
|
|
||||||
if (input[begin] != 33) return result;
|
|
||||||
if (input[begin + length - 4] != 42) return result;
|
|
||||||
if (length != BitConverter.ToInt32(input, begin + 16) + ExHeadAllLength + ExTailAllLength) return result;
|
|
||||||
|
|
||||||
byte[] output = new byte[BitConverter.ToInt32(input, begin + ExHead.Length)];
|
|
||||||
fixed (byte* pSrc1 = &input[begin + ExHeadAllLength])
|
|
||||||
fixed (byte* pSrc2 = output)
|
|
||||||
{
|
|
||||||
length = length - ExHeadAllLength - ExTailAllLength;
|
|
||||||
int outlen = Is64bitApp() ? FastLZx64.FastLZ_Decompress(pSrc1, length, pSrc2, output.Length) : FastLZx86.FastLZ_Decompress(pSrc1, length, pSrc2, output.Length);
|
|
||||||
result = new byte[outlen];
|
|
||||||
Array.Copy(output, 0, result, 0, outlen);
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// 解压缩(扩展）
|
|
||||||
/// </summary>
|
|
||||||
/// <param name="input">输入</param>
|
|
||||||
/// <param name="begin">起始位置</param>
|
|
||||||
/// <param name="length">长度</param>
|
|
||||||
/// <param name="datetime">时间</param>
|
|
||||||
/// <param name="index">索引</param>
|
|
||||||
/// <returns>解压缩结果</returns>
|
|
||||||
public static byte[] DecompressEx(byte[] input, int begin, int length, out DateTime datetime, out int index)
|
|
||||||
{
|
|
||||||
CheckFastLZDll();
|
|
||||||
byte[] result = DecompressEx(input, begin, length);
|
|
||||||
|
|
||||||
datetime = Jan1st1970;
|
|
||||||
index = 0;
|
|
||||||
if (result.Length > 0)
|
|
||||||
{
|
|
||||||
datetime = Jan1st1970.AddSeconds(BitConverter.ToInt32(input, begin + 4)).AddMilliseconds(BitConverter.ToInt32(input, begin + 8));
|
|
||||||
index = BitConverter.ToInt32(input, begin + length - 8);
|
|
||||||
}
|
|
||||||
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
|
|
||||||
private static bool FileExist = false;
|
|
||||||
|
|
||||||
public static bool CheckFastLZDll()
|
|
||||||
{
|
|
||||||
if (FileExist) return true;
|
|
||||||
if (File.Exists(DirEx.CurrentDir() + "FastLZx86.dll") && File.Exists(DirEx.CurrentDir() + "FastLZx64.dll"))
|
|
||||||
{
|
|
||||||
FileExist = true;
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
try
|
|
||||||
{
|
|
||||||
CreateResourceToFile(DirEx.CurrentDir() + "FastLZx86.dll", "Sunny.UI.Common.FastLZx86.dat");
|
|
||||||
CreateResourceToFile(DirEx.CurrentDir() + "FastLZx64.dll", "Sunny.UI.Common.FastLZx64.dat");
|
|
||||||
}
|
|
||||||
catch
|
|
||||||
{
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
FileExist = File.Exists(DirEx.CurrentDir() + "FastLZx86.dll") && File.Exists(DirEx.CurrentDir() + "FastLZx64.dll");
|
|
||||||
return FileExist;
|
|
||||||
}
|
|
||||||
|
|
||||||
/// <summary>
|
|
||||||
/// 从系统资源中保存文件
|
|
||||||
/// </summary>
|
|
||||||
/// <param name="file">文件名</param>
|
|
||||||
/// <param name="resource">资源名称</param>
|
|
||||||
private static void CreateResourceToFile(string file, string resource)
|
|
||||||
{
|
|
||||||
if (!File.Exists(file))
|
|
||||||
{
|
|
||||||
Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream(resource);
|
|
||||||
if (stream != null)
|
|
||||||
{
|
|
||||||
byte[] buffer = new byte[stream.Length];
|
|
||||||
stream.Read(buffer, 0, (int)stream.Length);
|
|
||||||
stream.Close();
|
|
||||||
|
|
||||||
File.WriteAllBytes(file, buffer);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
@ -50,8 +50,6 @@
|
|||||||
</ItemGroup>
|
</ItemGroup>
|
||||||
|
|
||||||
<ItemGroup>
|
<ItemGroup>
|
||||||
<EmbeddedResource Include="Common\FastLZx64.dat" />
|
|
||||||
<EmbeddedResource Include="Common\FastLZx86.dat" />
|
|
||||||
<EmbeddedResource Include="Font\ElegantIcons.ttf" />
|
<EmbeddedResource Include="Font\ElegantIcons.ttf" />
|
||||||
<EmbeddedResource Include="Font\fa-brands-400.ttf" />
|
<EmbeddedResource Include="Font\fa-brands-400.ttf" />
|
||||||
<EmbeddedResource Include="Font\fa-regular-400.ttf" />
|
<EmbeddedResource Include="Font\fa-regular-400.ttf" />
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user