323 lines
11 KiB
C#
323 lines
11 KiB
C#
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using Syroot.BinaryData;
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using System.IO;
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using System.IO.Compression;
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using K4os.Compression.LZ4.Streams;
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using System.Windows.Forms;
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using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
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using System.Collections.Generic;
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using System.Linq;
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using System;
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namespace Switch_Toolbox.Library.IO
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{
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public class STLibraryCompression
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{
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public static byte[] CompressFile(byte[] data, IFileFormat format)
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{
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int Alignment = 0;
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if (format.IFileInfo != null)
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Alignment = format.IFileInfo.Alignment;
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switch (format.IFileInfo.CompressionType)
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{
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case CompressionType.Yaz0:
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return EveryFileExplorer.YAZ0.Compress(data, 3, (uint)Alignment);
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case CompressionType.None:
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return data;
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default:
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return data;
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}
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}
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public class ZSTD
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{
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public static byte[] Decompress(byte[] b)
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{
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using (var decompressor = new ZstdNet.Decompressor())
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{
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return decompressor.Unwrap(b);
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}
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}
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public static byte[] Decompress(byte[] b, int MaxDecompressedSize)
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{
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using (var decompressor = new ZstdNet.Decompressor())
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{
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return decompressor.Unwrap(b, MaxDecompressedSize);
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}
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}
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public static byte[] Compress(byte[] b)
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{
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using (var compressor = new ZstdNet.Compressor())
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{
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return compressor.Wrap(b);
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}
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}
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}
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public class ZLIB
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{
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public static byte[] Decompress(byte[] b)
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{
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using (var br = new FileReader(new MemoryStream(b), true))
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{
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var ms = new System.IO.MemoryStream();
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br.BaseStream.Position = 2;
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using (var ds = new DeflateStream(new MemoryStream(br.ReadBytes((int)br.BaseStream.Length - 6)), CompressionMode.Decompress))
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ds.CopyTo(ms);
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return ms.ToArray();
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}
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}
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public static byte[] Compress(byte[] b, uint Position = 0)
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{
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var output = new MemoryStream();
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output.Write(new byte[] { 0x78, 0xDA }, 0, 2);
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using (var decompressedStream = new MemoryStream(output.ToArray()))
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{
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using (var zipStream = new DeflateStream(output, CompressionMode.Compress))
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{
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zipStream.Write(b, 2, b.Length);
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return output.ToArray();
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}
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}
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}
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public static void CopyStream(System.IO.Stream input, System.IO.Stream output)
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{
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byte[] buffer = new byte[2000];
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int len;
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while ((len = input.Read(buffer, 0, 2000)) > 0)
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{
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output.Write(buffer, 0, len);
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}
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output.Flush();
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}
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}
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//Mario Tennis Aces Custom compression
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public class MTA_CUSTOM
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{
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private static uint Swap(uint X)
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{
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return ((X >> 24) & 0xff | (X >> 8) & 0xff00 |
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(X << 8) & 0xff0000 | (X << 24) & 0xff000000);
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}
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public byte[] Decompress(byte[] data, uint decompressedLength)
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{
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uint dest = 0;
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uint source = 0;
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uint pos = 8;
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byte[] Output = new byte[decompressedLength];
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if (pos > decompressedLength)
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{
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uint flag;
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}
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return Output;
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}
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}
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public class LZSS
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{
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//From https://github.com/IcySon55/Kuriimu/blob/f670c2719affc1eaef8b4c40e40985881247acc7/src/Kontract/Compression/LZSS.cs
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//Todo does not work with Paper Mario Color Splash
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public static byte[] Decompress(byte[] data, uint decompressedLength)
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{
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using (FileReader reader = new FileReader(new MemoryStream(data), true))
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{
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List<byte> result = new List<byte>();
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for (int i = 0, flags = 0; ; i++)
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{
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if (i % 8 == 0) flags = reader.ReadByte();
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if ((flags & 0x80) == 0) result.Add(reader.ReadByte());
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else
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{
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int lengthDist = BitConverter.ToUInt16(reader.ReadBytes(2).Reverse().ToArray(), 0);
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int offs = lengthDist % 4096 + 1;
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int length = lengthDist / 4096 + 3;
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while (length > 0)
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{
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result.Add(result[result.Count - offs]);
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length--;
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}
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}
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if (result.Count == decompressedLength)
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{
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return result.ToArray();
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}
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else if (result.Count > decompressedLength)
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{
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throw new InvalidDataException("Went past the end of the stream");
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}
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flags <<= 1;
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}
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}
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}
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}
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public class LZ77
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{
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/// <summary>
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/// Decompresses LZ77-compressed data from the given input stream.
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/// </summary>
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/// <param name="input">The input stream to read from.</param>
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/// <returns>The decompressed data.</returns>
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public static byte[] Decompress(byte[] input)
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{
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BinaryReader reader = new BinaryReader(new MemoryStream(input));
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// Check LZ77 type.
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// if (reader.ReadByte() != 0x10)
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// throw new System.Exception("Input stream does not contain LZ77-compressed data.");
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// Read the size.
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int size = reader.ReadUInt16() | (reader.ReadByte() << 16);
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// Create output stream.
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MemoryStream output = new MemoryStream(size);
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// Begin decompression.
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while (output.Length < size)
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{
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// Load flags for the next 8 blocks.
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int flagByte = reader.ReadByte();
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// Process the next 8 blocks.
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for (int i = 0; i < 8; i++)
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{
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// Check if the block is compressed.
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if ((flagByte & (0x80 >> i)) == 0)
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{
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// Uncompressed block; copy single byte.
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output.WriteByte(reader.ReadByte());
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}
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else
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{
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// Compressed block; read block.
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ushort block = reader.ReadUInt16();
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// Get byte count.
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int count = ((block >> 4) & 0xF) + 3;
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// Get displacement.
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int disp = ((block & 0xF) << 8) | ((block >> 8) & 0xFF);
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// Save current position and copying position.
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long outPos = output.Position;
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long copyPos = output.Position - disp - 1;
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// Copy all bytes.
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for (int j = 0; j < count; j++)
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{
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// Read byte to be copied.
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output.Position = copyPos++;
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byte b = (byte)output.ReadByte();
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// Write byte to be copied.
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output.Position = outPos++;
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output.WriteByte(b);
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}
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}
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// If all data has been decompressed, stop.
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if (output.Length >= size)
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{
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break;
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}
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}
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}
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output.Position = 0;
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return output.ToArray();
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}
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}
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public class GZIP
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{
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public static byte[] Decompress(byte[] b)
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{
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using (MemoryStream mem = new MemoryStream())
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{
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using (GZipStream source = new GZipStream(new MemoryStream(b), CompressionMode.Decompress, false))
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{
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source.CopyTo(mem);
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}
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return mem.ToArray();
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}
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}
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public static byte[] Compress(byte[] b)
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{
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using (MemoryStream mem = new MemoryStream())
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{
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using (GZipStream gzip = new GZipStream(mem,
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CompressionMode.Compress))
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{
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gzip.Write(b, 0, b.Length);
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}
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return mem.ToArray();
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}
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}
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}
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public class Type_LZ4F
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{
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public static byte[] Decompress(byte[] data)
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{
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using (MemoryStream mem = new MemoryStream())
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{
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using (var source = LZ4Stream.Decode(new MemoryStream(data)))
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{
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source.CopyTo(mem);
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}
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return mem.ToArray();
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}
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}
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public static byte[] Compress(byte[] data)
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{
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var stream = new MemoryStream();
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using (var writer = new FileWriter(stream))
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{
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writer.Write(data.Length);
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byte[] buffer = LZ4.Frame.LZ4Frame.Compress(new MemoryStream(data),
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LZ4.Frame.LZ4MaxBlockSize.MB1, true, true, false, true, false);
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writer.Write(buffer, 0, buffer.Length);
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}
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return stream.ToArray();
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}
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}
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public class Type_LZ4
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{
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public static byte[] Decompress(byte[] data, int inputOffset, int InputLength, int decompressedSize)
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{
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return LZ4.LZ4Codec.Decode(data, inputOffset, InputLength, decompressedSize);
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}
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public static byte[] Decompress(byte[] data)
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{
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using (MemoryStream mem = new MemoryStream())
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{
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using (var source = LZ4Stream.Decode(new MemoryStream(data)))
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{
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source.CopyTo(mem);
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mem.Write(data, 0, data.Length);
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}
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return mem.ToArray();
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}
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}
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public static byte[] Compress(byte[] data, int inputOffset = 0)
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{
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return LZ4.LZ4Codec.Encode(data, inputOffset, data.Length);
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}
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}
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}
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}
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