| public SetDecoderProperties ( byte properties ) : void | ||
| properties | byte | |
| Résultat | void | |
public static System.IO.Stream DeCompress(System.IO.Stream stream, uint length, bool EOF = false)
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
int tagsize = 5;
int filelen = -1;//如果压缩时使用了结束标志选项，则这里传-1，解压缩会知道文件长度
if (!EOF)
{
//读取文件长度
byte[] lbuf = new byte[4];
stream.Read(lbuf, 0, 4);
filelen = (int)BitConverter.ToUInt32(lbuf, 0);
tagsize += 4;
}
//读取压缩属性
byte[] properties = new byte[5];
if (stream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
System.IO.MemoryStream sout = new System.IO.MemoryStream();
decoder.Code(stream, sout, length - tagsize, filelen, null);
sout.Position = 0;
return sout;
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
Debug.Log("DecompressFileLZMA in File is :" + inFile);
Debug.Log("DecompressFileLZMA in outFile is :" + outFile);
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open, FileAccess.Read);
string path = outFile.Substring(0, outFile.LastIndexOf("/"));
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
}
// public static byte[] GetDecompressedResourceFromAssembly(Assembly assembly, string resourceName)
// {
// // Get the resource
// Stream str = assembly.GetManifestResourceStream(resourceName);
// byte[] b = new byte[(int) str.Length];
// str.Read(b, 0, b.Length);
// // decompress the resource
// byte[] b2 = Decompress(b);
// return b2;
//}
public static byte[] Decompress(byte[] inputBytes)
{
MemoryStream newInStream = new MemoryStream(inputBytes);
Decoder decoder = new Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = newInStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
byte[] b = newOutStream.ToArray();
return(b);
}
private static byte[] DecodeLzma(byte[] lzmaByteArray)
{
byte[] result = null;
Decoder decoder = new Decoder();
using (MemoryStream memoryStream = new MemoryStream(lzmaByteArray))
{
memoryStream.Seek(0L, SeekOrigin.Begin);
using (MemoryStream memoryStream2 = new MemoryStream())
{
byte[] array = new byte[5];
if (memoryStream.Read(array, 0, 5) != 5)
{
throw new Exception("input .lzma is too short");
}
long num = 0L;
for (int i = 0; i < 8; i++)
{
int num2 = memoryStream.ReadByte();
if (num2 < 0)
{
throw new Exception("Can't Read 1");
}
num |= (long)((long)((ulong)((byte)num2)) << 8 * i);
}
decoder.SetDecoderProperties(array);
long inSize = memoryStream.Length - memoryStream.Position;
decoder.Code(memoryStream, memoryStream2, inSize, num, null);
result = memoryStream2.ToArray();
}
}
return result;
}
//解压缩文件
public static void DecompressFileLZMA(byte[] inFile, string outFile, Action callBack)
{
DGFileUtil.CreateDirectoryWhenNotExists(outFile);
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
MemoryStream input = new MemoryStream(inFile);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
output.Dispose();
input.Dispose();
if (callBack != null)
{
callBack();
}
}
public static byte[] Decompress(byte[] inputBytes, long decompressedSize)
{
var compressed = new MemoryStream(inputBytes);
var decoder = new Decoder();
var properties2 = new byte[5];
if (compressed.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties2);
var compressedSize = compressed.Length - compressed.Position;
var decompressed = new MemoryStream();
decoder.Code(compressed, decompressed, compressedSize, decompressedSize, null);
if (decompressed.Length != decompressedSize)
{
throw new Exception("Decompression Error");
}
return(decompressed.ToArray());
}
public static byte[] Decompress(byte[] inputBytes)
{
MemoryStream memoryStream1 = new MemoryStream(inputBytes);
Decoder decoder = new Decoder();
memoryStream1.Seek(0L, SeekOrigin.Begin);
MemoryStream memoryStream2 = new MemoryStream();
byte[] numArray = new byte[5];
if (memoryStream1.Read(numArray, 0, 5) != 5)
{
throw new Exception("input .lzma is too short");
}
long outSize = 0;
for (int index = 0; index < 8; ++index)
{
int num = memoryStream1.ReadByte();
if (num < 0)
{
throw new Exception("Can't Read 1");
}
outSize |= (long)(byte)num << 8 * index;
}
decoder.SetDecoderProperties(numArray);
long inSize = memoryStream1.Length - memoryStream1.Position;
decoder.Code((Stream)memoryStream1, (Stream)memoryStream2, inSize, outSize, (ICodeProgress)null);
return(memoryStream2.ToArray());
}
public static byte[] Decompress(this byte[] buffer)
{
if (buffer.Length > 17 && buffer.IsCompressed())
{
MemoryStream inputStream = new MemoryStream(buffer);
int lzmaID = inputStream.ReadInt();
int acutalSize = inputStream.ReadInt();
int lzmaSize = inputStream.ReadInt();
byte[] props = inputStream.ReadBytes(5);
int lzmaBufferSize = buffer.Length - 17;
if (lzmaBufferSize != lzmaSize)
throw new Exception(string.Format("LZMA data corruption. Expected {0} bytes got {1}", lzmaSize, lzmaBufferSize));
byte[] uncompressedBuffer = new byte[acutalSize];
MemoryStream outputStream = new MemoryStream(uncompressedBuffer);
try
{
LZMADecoder = new Decoder();
LZMADecoder.SetDecoderProperties(props);
LZMADecoder.Code(inputStream, outputStream, inputStream.Length, outputStream.Length, null);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return uncompressedBuffer;
}
else
throw new Exception("Buffer is not compressed!");
}
/// <summary>
/// 解压
/// </summary>
/// <param name="OriPath">原文件地址</param>
/// <param name="destPath">目标文件</param>
public static void Unzip(string OriPath, string destPath)
{
FileStream inStream = new FileStream(OriPath, FileMode.Open);
FileStream outStream = new FileStream(destPath, FileMode.OpenOrCreate);
Decoder decoder = new Decoder();
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
//关闭文件流
inStream.Close();
outStream.Close();
}
private static void DecompressFileLZMA(string inFile, string outFile)
{
System.Diagnostics.Stopwatch stopwatch = new System.Diagnostics.Stopwatch();
stopwatch.Start();
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Flush();
input.Close();
stopwatch.Stop();
Debug.LogFormat("7z encode time: {0}", stopwatch.Elapsed.TotalSeconds);
}
public static MemoryStream Decompress(Stream newInStream)
{
//newInStream.Seek(0, SeekOrigin.Begin);
newInStream.Position = 0;
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = newInStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
lock (_access) {
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
}
newOutStream.Seek(0, SeekOrigin.Begin);
return(newOutStream);
}
/// <summary>
/// 解压
/// </summary>
/// <param name="OriPath">原文件地址</param>
/// <param name="destPath">目标文件</param>
public static byte[] Unzip(string filename)
{
FileStream inStream = new FileStream(filename, FileMode.Open);
MemoryStream outStream = new MemoryStream();
Decoder decoder = new Decoder();
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
//关闭文件流
inStream.Close();
//outStream.Close();
byte[] b = outStream.ToArray();
return(b);
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
using (FileStream input = new FileStream(inFile, FileMode.Open))
{
using (FileStream output = new FileStream(outFile, FileMode.Create))
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = input.Length - input.Position;
decoder.Code(input, output, compressedSize, outSize, null);
}
}
}
public static byte[] DecompressLzmaStream(Stream input)
{
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = input.Length - input.Position;
byte[] buffer = new byte[outSize];
using (MemoryStream output = new MemoryStream(buffer))
{
decoder.Code(input, output, compressedSize, outSize, null);
}
return(buffer);
}
private static Stream DecompressInternal(Stream inStream)
{
var outStream = new MemoryStream();
var decoder = new LZMA.Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw new InvalidDataException("Stream has an invalid header.");
}
else
{
// Make sure we have the 4 bytes representing the uncompressed size.
// The Clash of Clans LZMA header's uncompressed size is 4 bytes instead of 8.
var outSizeBytes = new byte[4];
if (inStream.Read(outSizeBytes, 0, 4) != 4)
{
throw new InvalidDataException("Stream has an invalid header.");
}
var inSize = inStream.Length - inStream.Position;
var outSize = BitConverter.ToInt32(outSizeBytes, 0);
decoder.SetDecoderProperties(properties);
decoder.Code(inStream, outStream, inSize, outSize, null);
}
outStream.Seek(0, SeekOrigin.Begin);
return(outStream);
}
public static void Decompress(Stream input, Stream output, Action <long, long> onProgress = null)
{
Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw new Exception("input .lzma is too short");
}
decoder.SetDecoderProperties(properties);
long fileLength = 0;
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw new Exception("Can't Read 1");
}
fileLength |= ((long)(byte)v) << (8 * i);
}
ICodeProgress prg = null;
if (onProgress != null)
{
prg = new DelegateCodeProgress(onProgress);
}
long compressedSize = input.Length - input.Position;
decoder.Code(input, output, compressedSize, fileLength, prg);
}
public static byte[] Decompress(byte[] inputBytes)
{
MemoryStream newInStream = new MemoryStream(inputBytes);
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
byte[] b = newOutStream.ToArray();
return b;
}
public static MemoryStream Decompress(FileStream inStream)
{
var decoder = new Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (var i = 0; i < 8; i++)
{
var v = inStream.ReadByte();
if (v < 0)
break;
outSize |= ((long) (byte) v) << (8 * i);
}
var compressedSize = inStream.Length - inStream.Position;
var outStream = new MemoryStream();
decoder.Code(inStream, outStream, compressedSize, outSize, null);
outStream.Flush();
outStream.Position = 0;
return outStream;
}
int LzmaDecompressBlock(uint packed_size, uint unpacked_size)
{
var decoder = new LZMA.Decoder();
var props = m_input.ReadBytes(5);
decoder.SetDecoderProperties(props);
var buffer = PrepareBuffer(unpacked_size);
using (var output = new MemoryStream(buffer))
{
decoder.Code(m_input, output, packed_size - 5, unpacked_size, null);
return((int)output.Length);
}
}
public static void StreamDecompress(Stream compressedStream, Stream decompressedStream, long compressedSize, long decompressedSize)
{
long basePosition = compressedStream.Position;
Decoder decoder = new Decoder();
byte[] properties = new byte[5];
if (compressedStream.Read(properties, 0, 5) != 5)
{
throw new Exception("input .lzma is too short");
}
decoder.SetDecoderProperties(properties);
decoder.Code(compressedStream, decompressedStream, compressedSize - 5, decompressedSize, null);
compressedStream.Position = basePosition + compressedSize;
}
public static byte[] Decompress(byte[] data)
{
using (MemoryStream instrm = new MemoryStream (data))
using (MemoryStream outstrm = new MemoryStream ()) {
Decoder decoder = new Decoder ();
byte[] tmp = new byte[5];
instrm.Read (tmp, 0, 5);
decoder.SetDecoderProperties (tmp);
instrm.Read (tmp, 0, 4);
int outsize = (tmp[0] << 24) | (tmp[1] << 16) | (tmp[2] << 8) | tmp[3];
decoder.Code (instrm, outstrm, data.Length - 9, outsize, null);
outstrm.Close ();
return outstrm.ToArray ();
}
}
static void Decompress(Stream input, Stream output)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
}
private static byte[] LZMADecode(Stream inStream, int compressedSize, int uncompressedSize)
{
var decoder = new LZMA.Decoder();
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw new ArgumentException("Input data is too short.");
}
decoder.SetDecoderProperties(properties);
using (var outLZMA = new MemoryStream())
{
decoder.Code(inStream, outLZMA, compressedSize, uncompressedSize, null);
return(outLZMA.ToArray());
}
}
public static void DecompressFileLZMA(string sourceFile, string destinationFile)
{
// make sure the source file is there
if (File.Exists(sourceFile) == false)
{
throw new FileNotFoundException("Unable to find the specified file.", sourceFile);
}
FileStream sourceStream = null;
FileStream destinationStream = null;
try
{
var coder = new SevenZip.Compression.LZMA.Decoder();
sourceStream = new FileStream(sourceFile, FileMode.Open, FileAccess.Read);
destinationStream = new FileStream(destinationFile, FileMode.OpenOrCreate, FileAccess.Write);
// Read the decoder properties
byte[] properties = new byte[5];
sourceStream.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
sourceStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(sourceStream, destinationStream, sourceStream.Length, fileLength, null);
destinationStream.Flush();
}
finally
{
// Make sure we allways close all streams
if (sourceStream != null)
{
sourceStream.Close();
}
//if (compressedStream != null)
// compressedStream.Close();
if (destinationStream != null)
{
destinationStream.Close();
}
}
}
static public void uncompress(Stream inStream, Stream outStream)
{
var coder = new lzma.Decoder();
// Read the decoder properties
byte[] properties = new byte[5];
inStream.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
inStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(inStream, outStream, inStream.Length, fileLength, null);
}
protected override void Process()
{
var decoder = new LZMA.Decoder();
byte[] properties = new byte[5];
InputStream.Read(properties, 0, 5);
byte[] stringLengthBytes = new byte[8];
InputStream.Read(stringLengthBytes, 0, 8);
long stringLength = BitConverter.ToInt64(stringLengthBytes, 0);
decoder.SetDecoderProperties(properties);
decoder.Code(InputStream, OutputStream, InputStream.Length, stringLength, null);
}
/// <summary>
/// Decompress LZMA compressed stream into outStream.
/// Remeber to set desirable positions in input and output streams.
/// </summary>
/// <param name="inStream">Input stream</param>
/// <param name="outStream">Output stream</param>
public static void Decompress(Stream inStream, Stream outStream)
{
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
{
throw (new Exception("Input stream is too short."));
}
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
var br = new BinaryReader(inStream, Encoding.UTF8);
long decompressedSize = br.ReadInt64();
long compressedSize = br.ReadInt64();
decoder.Code(inStream, outStream, compressedSize, decompressedSize, null);
}
public static void Decompress(Stream inputStream, Stream outputStream, long outputSize)
{
Decoder decoder = new Decoder();
var properties2 = new byte[5];
if (inputStream.Read(properties2, 0, 5) != 5)
{
throw new Exception("Input LZMA is too short");
}
decoder.SetDecoderProperties(properties2);
var compressedSize = inputStream.Length - inputStream.Position;
decoder.Code(inputStream, outputStream, compressedSize, outputSize, null);
}
private static byte[] LZMADecode(byte[] inputData, int uncompressedSize)
{
if (inputData.Length < 5)
{
throw new ArgumentException("Input data is too short.");
}
var decoder = new LZMA.Decoder();
var properties = new byte[5];
Array.Copy(inputData, 0, properties, 0, 5);
decoder.SetDecoderProperties(properties);
using (var outLZMA = new MemoryStream())
using (var inLZMA = new MemoryStream(inputData, 13, inputData.Length - 13))
{
decoder.Code(inLZMA, outLZMA, inputData.Length - 13, uncompressedSize, null);
return(outLZMA.ToArray());
}
}
public static byte[] DecompressFileLZMA(byte[] inBytes)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
var input = new MemoryStream(inBytes);
var output = new MemoryStream();
byte[] ret = null;
try
{
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
ret = output.GetBuffer();
}
catch
{
throw;
}
finally
{
output.Close();
output.Dispose();
input.Close();
input.Dispose();
}
return ret;
}
public void uncompress(Stream inStream, Stream outStream)
{
var coder = new lzma.Decoder();
// Read the decoder properties
byte[] properties = new byte[5];
inStream.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
inStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(inStream, outStream, inStream.Length, fileLength, null);
}
// 使用LZMA算法解压文件
public static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = System.BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
}
public static MemoryStream StreamDecompress(MemoryStream newInStream, long outSize)
{
Decoder decoder = new Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
newOutStream.Position = 0;
return(newOutStream);
}
private static byte[] decompress(byte[] compressed)
{
byte[] retVal = null;
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
using (Stream strmInStream = new MemoryStream(compressed))
{
strmInStream.Seek(0, 0);
using (MemoryStream strmOutStream = new MemoryStream())
{
byte[] properties2 = new byte[5];
if (strmInStream.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = strmInStream.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1"));
}
outSize |= ((long)(byte)v) << (8 * i);
} //Next i
decoder.SetDecoderProperties(properties2);
long compressedSize = strmInStream.Length - strmInStream.Position;
decoder.Code(strmInStream, strmOutStream, compressedSize, outSize, null);
retVal = strmOutStream.ToArray();
} // End Using newOutStream
} // End Using newInStream
return(retVal);
}
protected override string DecompressAll(Stream fileList, Stream compressedStream)
{
var sfs = new SparseFileWriterStream(fileList);
byte[] buffer = new byte[5];
var decoder = new Decoder();
compressedStream.Read(buffer, 0, 5);
decoder.SetDecoderProperties(buffer);
try
{
decoder.Code(compressedStream, sfs, compressedStream.Length - compressedStream.Position, sfs.Length,
null);
}
finally
{
sfs.Close();
}
return(sfs.BaseDirectory);
}
public static void DecompressFileLZMA(string inFile, string outFile)
{
Decoder coder = new Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
}
public static byte[] Decompress(byte[] inputBytes, long decompressedSize)
{
var compressed = new MemoryStream(inputBytes);
var decoder = new Decoder();
var properties2 = new byte[5];
if (compressed.Read(properties2, 0, 5) != 5)
{
throw (new Exception("input .lzma is too short"));
}
decoder.SetDecoderProperties(properties2);
var compressedSize = compressed.Length - compressed.Position;
var decompressed = new MemoryStream();
decoder.Code(compressed, decompressed, compressedSize, decompressedSize, null);
if (decompressed.Length != decompressedSize)
throw new Exception("Decompression Error");
return decompressed.ToArray();
}
public byte[] readCompressedData(int size)
{
Decoder decoder = new Decoder ();
MemoryStream newOutStream = new MemoryStream ();
int compressedSize = readLittleInt ();
byte[] properties = ReadBytes (5);
if (properties.Length == 0) {
throw new IOException ("End of file reached while parsing the file!");
}
long accPos = BaseStream.Position;
decoder.SetDecoderProperties (properties);
decoder.Code (BaseStream, newOutStream, compressedSize, size, null);
BaseStream.Position = accPos + compressedSize;
return newOutStream.ToArray ();
}
static bool DeCompressFile(string inFile, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
FileStream input = new FileStream(inFile, FileMode.Open);
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = System.BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Flush();
output.Close();
input.Close();
return(true);
}
public static byte[] Decompress(Byte[] bytes) {
Decoder coder = new Decoder();
using (MemoryStream input = new MemoryStream(bytes)) {
using (MemoryStream output = new MemoryStream()) {
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
return output.ToArray();
}
}
}
public static byte[] Decompress(Stream inStream)
{
MemoryStream outStream = new MemoryStream();
byte[] buffer = new byte[5];
if (inStream.Read(buffer, 0, 5) != 5)
{
throw new Exception("Err");
}
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(buffer);
long outSize = 0L;
for (int i = 0; i < 8; i++)
{
int num3 = inStream.ReadByte();
if (num3 < 0)
{
throw new Exception("Err");
}
outSize |= ((byte)num3) << (8 * i);
}
long inSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, inSize, outSize, null);
return outStream.ToArray();
}
public static void DecompressByteLZMA(byte[] inFileBytes, string outFile)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
MemoryStream memoryStream = new MemoryStream(inFileBytes);
string path = outFile.Substring(0, outFile.LastIndexOf("/"));
Debug.Log("OutFile is " + path);
if (!Directory.Exists(path))
{
Debug.Log("CreateDirectory : " + path);
Directory.CreateDirectory(path);
}
FileStream output = new FileStream(outFile, FileMode.Create);
// Read the decoder properties
byte[] properties = new byte[5];
memoryStream.Read(properties, 0, 5);
// Read in the decompress file size.
byte [] fileLengthBytes = new byte[8];
memoryStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decompress the file.
coder.SetDecoderProperties(properties);
coder.Code(memoryStream, output, memoryStream.Length, fileLength, null);
output.Flush();
output.Close();
}
public void Extract(
FileStream inStream,
ArchiveDatabaseEx db,
uint fileIndex,
out uint blockIndex,
out byte[] outBuffer,
out ulong outBufferSize,
ref ulong offset,
ref ulong outSizeProcessed)
{
//Console.WriteLine("Extract >>>");
uint folderIndex = db.FileIndexToFolderIndexMap[fileIndex];
offset = 0;
outSizeProcessed = 0;
outBuffer = null;
if (folderIndex == UInt32.MaxValue)
{
//Console.WriteLine("folderindex is UInt32.MaxValue");
blockIndex = folderIndex;
outBuffer = null;
outBufferSize = 0;
return;
}
Folder folder = db.Database.Folders[folderIndex];
ulong unPackSize = folder.GetUnPackSize();
//#ifndef _LZMA_IN_CB
ulong packSize = db.GetFolderFullPackSize(folderIndex);
//Console.WriteLine("packsize: " + packSize + " unpacksize: " + unPackSize );
//Byte *inBuffer = 0;
//size_t processedSize;
//#endif
blockIndex = folderIndex;
outBuffer = null;
//Console.WriteLine("folderstreampos: " + db.GetFolderStreamPos(folderIndex, 0));
inStream.Seek((long)db.GetFolderStreamPos(folderIndex, 0), SeekOrigin.Begin);
//RINOK(inStream->Seek(inStream, SzArDbGetFolderStreamPos(db, folderIndex, 0)));
//#ifndef _LZMA_IN_CB
//if (packSize != 0)
//{
// inBuffer = (Byte *)allocTemp->Alloc((size_t)packSize);
// if (inBuffer == 0)
// return SZE_OUTOFMEMORY;
// }
// res = inStream->Read(inStream, inBuffer, (size_t)packSize, &processedSize);
// if (res == SZ_OK && processedSize != (size_t)packSize)
// res = SZE_FAIL;
//#endif
outBufferSize = unPackSize;
if (unPackSize != 0)
{
outBuffer = new byte[unPackSize];
//*outBuffer = (Byte *)allocMain->Alloc((size_t)unPackSize);
//if (*outBuffer == 0)
//res = SZE_OUTOFMEMORY;
}
ulong outRealSize;
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(folder.Coders[0].Properties);
Stream outStream = new MemoryStream(outBuffer);
decoder.Code(inStream, outStream, (long)packSize, (long)unPackSize, null);
//SzDecode(db.Database.PackSizes +
// db.FolderStartPackStreamIndex[folderIndex], folder,
// //#ifdef _LZMA_IN_CB
// inStream,
// //#else
// //inBuffer,
// //#endif
//outBuffer, unPackSize, out outRealSize);
outStream.Close();
//Console.WriteLine( Encoding.UTF8.GetString( outBuffer, 0, (int)unPackSize ) );
outRealSize = unPackSize;
if (outRealSize == unPackSize)
{
//if (folde.UnPackCRCDefined)
//{
// if (!CrcVerifyDigest(folder->UnPackCRC, *outBuffer, (size_t)unPackSize))
// res = SZE_FAIL;
//}
}
else
{
throw new Exception("Unpack size was different from packsize: " + unPackSize + " vs " + outRealSize);
//res = SZE_FAIL;
}
UInt32 i;
FileItem fileItem = db.Database.Files[fileIndex];
offset = 0;
for (i = db.FolderStartFileIndex[folderIndex]; i < fileIndex; i++)
{
offset += (UInt32)db.Database.Files[i].Size;
}
outSizeProcessed = fileItem.Size;
if (offset + outSizeProcessed > outBufferSize)
{
throw new Exception("offset + outsizeprocessed > outbuffersize " + offset + " + " + outSizeProcessed + " > " + outBufferSize);
// return SZE_FAIL;
}
//if (fileItem->IsFileCRCDefined)
//{
// if (!CrcVerifyDigest(fileItem->FileCRC, *outBuffer + *offset, *outSizeProcessed))
// res = SZE_FAIL;
//}
}
/// <summary>
/// Decompress byte array compressed with LZMA algorithm (C# inside)
/// </summary>
/// <param name="data">Byte array to decompress</param>
/// <returns>Decompressed byte array</returns>
public static byte[] ExtractBytes(byte[] data)
{
using (var inStream = new MemoryStream(data))
{
var decoder = new Decoder();
inStream.Seek(0, 0);
using (var outStream = new MemoryStream())
{
long outSize;
decoder.SetDecoderProperties(GetLzmaProperties(inStream, out outSize));
decoder.Code(inStream, outStream, inStream.Length - inStream.Position, outSize, null);
return outStream.ToArray();
}
}
}
/// <summary>Uncompresses a stream of LZMA-compressed data into a memory stream</summary>
/// <param name="source">Source stream containing the LZMA-compressed data</param>
/// <param name="compressedLength">Length of the compressed data</param>
/// <param name="uncompressedLength">Length the uncompressed data will have</param>
/// <returns>A memory stream containing the uncompressed data</returns>
private Stream uncompress(Stream source, int compressedLength, int uncompressedLength) {
BinaryReader reader = new BinaryReader(source);
// Build a memory chunk we can uncompress into
MemoryStream uncompressedMemory = new MemoryStream(uncompressedLength);
// Set up the LZMA decoder and decode the compressed asset into the memory chunk
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(reader.ReadBytes(5));
decoder.Code(
source, uncompressedMemory,
compressedLength - 5, uncompressedLength,
null
);
// Done, set the file pointer to the beginning of the memory chunk and return it
uncompressedMemory.Position = 0;
return uncompressedMemory;
}
/// <summary>
/// Decompresses the specified <see cref="byte"/> into
/// LZMA.
/// </summary>
/// <param name="bytes">The <see cref="byte"/> array to decompress.</param>
/// <returns>The decompressed <see cref="byte"/> array.</returns>
public static byte[] Decompress(byte[] bytes)
{
if (bytes == null)
throw new ArgumentNullException("bytes");
using (var outStream = new MemoryStream())
{
using (var inStream = new MemoryStream(bytes))
{
var decoder = new Decoder();
inStream.Seek(0, 0);
var properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw new Exception("Input .lzma is too short");
var outSize = 0L;
for (int i = 0; i < 8; i++)
{
var v = inStream.ReadByte();
if (v < 0)
throw new Exception("Can't Read 1");
outSize |= ((long)v) << (8 * i);
}
var compressedSize = inStream.Length - inStream.Position;
decoder.SetDecoderProperties(properties);
decoder.Code(inStream, outStream, compressedSize, outSize, null);
return outStream.ToArray();
}
}
}
public static bool Decompress(string FileName, out byte[] outputBytes)
{
outputBytes = null;
if (!File.Exists(FileName))
return false;
using(FileStream newInStream = File.OpenRead(FileName)) {
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
newInStream.Seek(0, 0);
MemoryStream newOutStream = new MemoryStream();
byte[] properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
long outSize = 0;
for (int i = 0; i < 8; i++) {
int v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
decoder.SetDecoderProperties(properties2);
long compressedSize = newInStream.Length - newInStream.Position;
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
outputBytes = newOutStream.ToArray();
}
return true;
}
private static void Decompress(Stream inputStream, Stream outputStream)
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
// Read decoder properties
byte[] properties = new byte[5]; // 5 comes from kPropSize (LzmaEncoder.cs)
inputStream.Read(properties, 0, 5);
// Read the size of the output stream.
byte [] fileLengthBytes = new byte[8];
inputStream.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
// Decode
coder.SetDecoderProperties(properties);
coder.Code(inputStream, outputStream, inputStream.Length, fileLength, null);
outputStream.Flush();
outputStream.Close();
}
static byte[] SevenZipDecompress(byte[] data)
{
var reader = new BinaryReader(new MemoryStream(data));
int totalSize = reader.ReadInt32();
var props = reader.ReadBytes(5);
var decoder = new Decoder();
decoder.SetDecoderProperties(props);
if ((long)totalSize != reader.ReadInt64())
throw new ApplicationException("Invalid total size");
long compressedSize = data.Length - props.Length - 8;
var decompressed = new byte[totalSize];
decoder.Code(reader.BaseStream, new MemoryStream(decompressed, true), compressedSize, totalSize, null);
return decompressed;
}
public static byte[] SevenZipDecompress(byte[] data) {
var reader = new BinaryReader(new MemoryStream(data));
var props = reader.ReadBytes(5);
var decoder = new Decoder();
decoder.SetDecoderProperties(props);
long totalSize = reader.ReadInt64();
long compressedSize = data.Length - props.Length - 8;
var decompressed = new byte[totalSize];
decoder.Code(reader.BaseStream, new MemoryStream(decompressed, true), compressedSize, totalSize, null);
return decompressed;
}
/// <summary>
/// Decompress the specified stream (C# inside)
/// </summary>
/// <param name="inStream">The source compressed stream</param>
/// <param name="outStream">The destination uncompressed stream</param>
/// <param name="inLength">The length of compressed data (null for inStream.Length)</param>
/// <param name="codeProgressEvent">The event for handling the code progress</param>
public static void DecompressStream(Stream inStream, Stream outStream, int? inLength,
EventHandler<ProgressEventArgs> codeProgressEvent)
{
if (!inStream.CanRead || !outStream.CanWrite)
{
throw new ArgumentException("The specified streams are invalid.");
}
var decoder = new Decoder();
long outSize, inSize = (inLength.HasValue ? inLength.Value : inStream.Length) - inStream.Position;
decoder.SetDecoderProperties(GetLzmaProperties(inStream, out outSize));
decoder.Code(
inStream, outStream, inSize, outSize,
new LzmaProgressCallback(inSize, codeProgressEvent));
}
public static void ExpandNatives()
{
Decoder decoder = new Decoder();
MemoryStream output = new MemoryStream();
using (Stream input = File.Open(Path.Combine(DotMinecraft, "bin/" + GetNativeArchiveFile()), FileMode.Open))
{
Decoder coder = new Decoder();
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
}
output.Seek(0, SeekOrigin.Begin);
FastZip fastZip = new FastZip();
fastZip.ExtractZip(output, Path.Combine(DotMinecraft, "bin/natives"), FastZip.Overwrite.Always, null, "", "", false, false);
File.Delete(Path.Combine(DotMinecraft, "bin/" + GetNativeArchiveFile()));
}
static int Main2(string[] args)
{
System.Console.WriteLine("\nLZMA# 4.61 2008-11-23\n");
if (args.Length == 0)
{
PrintHelp();
return 0;
}
SwitchForm[] kSwitchForms = new SwitchForm[13];
int sw = 0;
kSwitchForms[sw++] = new SwitchForm("?", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("H", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("A", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("D", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("FB", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("LC", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("LP", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("PB", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("MF", SwitchType.UnLimitedPostString, false, 1);
kSwitchForms[sw++] = new SwitchForm("EOS", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("SI", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("SO", SwitchType.Simple, false);
kSwitchForms[sw++] = new SwitchForm("T", SwitchType.UnLimitedPostString, false, 1);
Parser parser = new Parser(sw);
try
{
parser.ParseStrings(kSwitchForms, args);
}
catch
{
return IncorrectCommand();
}
if (parser[(int)Key.Help1].ThereIs || parser[(int)Key.Help2].ThereIs)
{
PrintHelp();
return 0;
}
System.Collections.ArrayList nonSwitchStrings = parser.NonSwitchStrings;
int paramIndex = 0;
if (paramIndex >= nonSwitchStrings.Count)
return IncorrectCommand();
string command = (string)nonSwitchStrings[paramIndex++];
command = command.ToLower();
bool dictionaryIsDefined = false;
Int32 dictionary = 1 << 21;
if (parser[(int)Key.Dictionary].ThereIs)
{
Int32 dicLog;
if (!GetNumber((string)parser[(int)Key.Dictionary].PostStrings[0], out dicLog))
IncorrectCommand();
dictionary = (Int32)1 << dicLog;
dictionaryIsDefined = true;
}
string mf = "bt4";
if (parser[(int)Key.MatchFinder].ThereIs)
mf = (string)parser[(int)Key.MatchFinder].PostStrings[0];
mf = mf.ToLower();
if (command == "b")
{
const Int32 kNumDefaultItereations = 10;
Int32 numIterations = kNumDefaultItereations;
if (paramIndex < nonSwitchStrings.Count)
if (!GetNumber((string)nonSwitchStrings[paramIndex++], out numIterations))
numIterations = kNumDefaultItereations;
return LzmaBench.LzmaBenchmark(numIterations, (UInt32)dictionary);
}
string train = "";
if (parser[(int)Key.Train].ThereIs)
train = (string)parser[(int)Key.Train].PostStrings[0];
bool encodeMode = false;
if (command == "e")
encodeMode = true;
else if (command == "d")
encodeMode = false;
else
IncorrectCommand();
bool stdInMode = parser[(int)Key.StdIn].ThereIs;
bool stdOutMode = parser[(int)Key.StdOut].ThereIs;
Stream inStream = null;
if (stdInMode)
{
throw (new Exception("Not implemeted"));
}
else
{
if (paramIndex >= nonSwitchStrings.Count)
IncorrectCommand();
string inputName = (string)nonSwitchStrings[paramIndex++];
inStream = new FileStream(inputName, FileMode.Open, FileAccess.Read);
}
FileStream outStream = null;
if (stdOutMode)
{
throw (new Exception("Not implemeted"));
}
else
{
if (paramIndex >= nonSwitchStrings.Count)
IncorrectCommand();
string outputName = (string)nonSwitchStrings[paramIndex++];
outStream = new FileStream(outputName, FileMode.Create, FileAccess.Write);
}
FileStream trainStream = null;
if (train.Length != 0)
trainStream = new FileStream(train, FileMode.Open, FileAccess.Read);
if (encodeMode)
{
if (!dictionaryIsDefined)
dictionary = 1 << 23;
Int32 posStateBits = 2;
Int32 litContextBits = 3; // for normal files
// UInt32 litContextBits = 0; // for 32-bit data
Int32 litPosBits = 0;
// UInt32 litPosBits = 2; // for 32-bit data
Int32 algorithm = 2;
Int32 numFastBytes = 128;
bool eos = parser[(int)Key.EOS].ThereIs || stdInMode;
if (parser[(int)Key.Mode].ThereIs)
if (!GetNumber((string)parser[(int)Key.Mode].PostStrings[0], out algorithm))
IncorrectCommand();
if (parser[(int)Key.FastBytes].ThereIs)
if (!GetNumber((string)parser[(int)Key.FastBytes].PostStrings[0], out numFastBytes))
IncorrectCommand();
if (parser[(int)Key.LitContext].ThereIs)
if (!GetNumber((string)parser[(int)Key.LitContext].PostStrings[0], out litContextBits))
IncorrectCommand();
if (parser[(int)Key.LitPos].ThereIs)
if (!GetNumber((string)parser[(int)Key.LitPos].PostStrings[0], out litPosBits))
IncorrectCommand();
if (parser[(int)Key.PosBits].ThereIs)
if (!GetNumber((string)parser[(int)Key.PosBits].PostStrings[0], out posStateBits))
IncorrectCommand();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
CoderPropID.PosStateBits,
CoderPropID.LitContextBits,
CoderPropID.LitPosBits,
CoderPropID.Algorithm,
CoderPropID.NumFastBytes,
CoderPropID.MatchFinder,
CoderPropID.EndMarker
};
object[] properties =
{
(Int32)(dictionary),
(Int32)(posStateBits),
(Int32)(litContextBits),
(Int32)(litPosBits),
(Int32)(algorithm),
(Int32)(numFastBytes),
mf,
eos
};
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
encoder.SetCoderProperties(propIDs, properties);
encoder.WriteCoderProperties(outStream);
Int64 fileSize;
if (eos || stdInMode)
fileSize = -1;
else
fileSize = inStream.Length;
for (int i = 0; i < 8; i++)
outStream.WriteByte((Byte)(fileSize >> (8 * i)));
if (trainStream != null)
{
CDoubleStream doubleStream = new CDoubleStream();
doubleStream.s1 = trainStream;
doubleStream.s2 = inStream;
doubleStream.fileIndex = 0;
inStream = doubleStream;
long trainFileSize = trainStream.Length;
doubleStream.skipSize = 0;
if (trainFileSize > dictionary)
doubleStream.skipSize = trainFileSize - dictionary;
trainStream.Seek(doubleStream.skipSize, SeekOrigin.Begin);
encoder.SetTrainSize((uint)(trainFileSize - doubleStream.skipSize));
}
encoder.Code(inStream, outStream, -1, -1, null);
}
else if (command == "d")
{
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
if (trainStream != null)
{
if (!decoder.Train(trainStream))
throw (new Exception("can't train"));
}
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
}
else
throw (new Exception("Command Error"));
return 0;
}
private void FileDownloaded(Uri uri, byte[] raw, string error, object decompressionTask)
{
SetTaskProgressBar_ThreadSafe(100, "");
if (error != null)
{
if (decompressionTask != null)
{
CompressionTask task = decompressionTask as CompressionTask;
if (task != null)
task.done = true;
}
IncrementPatchProgressBar_ThreadSafe(true);
Log_ThreadSafe("\tFailed to download " + uri.ToString() + ": " + error);
return;
}
if (decompressionTask != null)
{
string file = "?";
CompressionTask task = null;
Stream inStream = null;
Stream outStream = null;
try
{
task = (CompressionTask)decompressionTask;
file = task.dl.destination.Name;
task.dl.destination.Directory.Create();
inStream = task.dl.tempCompressed.OpenRead();
outStream = task.dl.destination.OpenWrite();
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
LZMA.Decoder decoder = new LZMA.Decoder();
decoder.SetDecoderProperties(properties);
long outSize = 0;
for (int i = 0; i < 8; i++)
{
int v = inStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
long compressedSize = inStream.Length - inStream.Position;
decoder.Code(inStream, outStream, compressedSize, outSize, null);
task.done = true;
}
catch (Exception e)
{
if (task != null)
task.done = true;
IncrementPatchProgressBar_ThreadSafe(true);
Log_ThreadSafe("\tFailed during decompression of " + file + ": " + e.ToString());
}
finally
{
if (inStream != null)
inStream.Close();
if (outStream != null)
outStream.Close();
try
{
if (task != null)
task.dl.tempCompressed.Delete();
}
catch (Exception) { }
}
}
IncrementPatchProgressBar_ThreadSafe(false);
}
public static byte[] Uncompress(byte[] bytes)
{
if (bytes.Length < 5)
{
throw new Exception("LZMA data is too short.");
}
using (MemoryStream input = new MemoryStream(bytes))
{
// read the decoder properties
byte[] properties = new byte[5];
if (input.Read(properties, 0, 5) != 5)
{
throw (new Exception("LZMA data is too short."));
}
long outSize = 0;
if (BitConverter.IsLittleEndian)
{
for (int i = 0; i < 8; i++)
{
int v = input.ReadByte();
if (v < 0)
{
throw (new Exception("Can't Read 1."));
}
outSize |= ((long)v) << (8 * i);
}
}
MemoryStream output = new MemoryStream();
long compressedSize = input.Length - input.Position;
Decoder decoder = new Decoder();
decoder.SetDecoderProperties(properties);
decoder.Code(input, output, compressedSize, outSize, null);
return output.ToArray();
}
}
static public int LzmaBenchmark(Int32 numIterations, UInt32 dictionarySize)
{
if (numIterations <= 0)
return 0;
if (dictionarySize < (1 << 18))
{
System.Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return 1;
}
System.Console.Write("\n Compressing Decompressing\n\n");
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
};
object[] properties =
{
(Int32)(dictionarySize),
};
UInt32 kBufferSize = dictionarySize + kAdditionalSize;
UInt32 kCompressedBufferSize = (kBufferSize / 2) + kCompressedAdditionalSize;
encoder.SetCoderProperties(propIDs, properties);
System.IO.MemoryStream propStream = new System.IO.MemoryStream();
encoder.WriteCoderProperties(propStream);
byte[] propArray = propStream.ToArray();
CBenchRandomGenerator rg = new CBenchRandomGenerator();
rg.Set(kBufferSize);
rg.Generate();
CRC crc = new CRC();
crc.Init();
crc.Update(rg.Buffer, 0, rg.BufferSize);
CProgressInfo progressInfo = new CProgressInfo();
progressInfo.ApprovedStart = dictionarySize;
UInt64 totalBenchSize = 0;
UInt64 totalEncodeTime = 0;
UInt64 totalDecodeTime = 0;
UInt64 totalCompressedSize = 0;
MemoryStream inStream = new MemoryStream(rg.Buffer, 0, (int)rg.BufferSize);
MemoryStream compressedStream = new MemoryStream((int)kCompressedBufferSize);
CrcOutStream crcOutStream = new CrcOutStream();
for (Int32 i = 0; i < numIterations; i++)
{
progressInfo.Init();
inStream.Seek(0, SeekOrigin.Begin);
compressedStream.Seek(0, SeekOrigin.Begin);
encoder.Code(inStream, compressedStream, -1, -1, progressInfo);
TimeSpan sp2 = DateTime.UtcNow - progressInfo.Time;
UInt64 encodeTime = (UInt64)sp2.Ticks;
long compressedSize = compressedStream.Position;
if (progressInfo.InSize == 0)
throw (new Exception("Internal ERROR 1282"));
UInt64 decodeTime = 0;
for (int j = 0; j < 2; j++)
{
compressedStream.Seek(0, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(propArray);
UInt64 outSize = kBufferSize;
System.DateTime startTime = DateTime.UtcNow;
decoder.Code(compressedStream, crcOutStream, 0, (Int64)outSize, null);
TimeSpan sp = (DateTime.UtcNow - startTime);
decodeTime = (ulong)sp.Ticks;
if (crcOutStream.GetDigest() != crc.GetDigest())
throw (new Exception("CRC Error"));
}
UInt64 benchSize = kBufferSize - (UInt64)progressInfo.InSize;
PrintResults(dictionarySize, encodeTime, benchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, decodeTime, kBufferSize, true, (ulong)compressedSize);
System.Console.WriteLine();
totalBenchSize += benchSize;
totalEncodeTime += encodeTime;
totalDecodeTime += decodeTime;
totalCompressedSize += (ulong)compressedSize;
}
System.Console.WriteLine("---------------------------------------------------");
PrintResults(dictionarySize, totalEncodeTime, totalBenchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, totalDecodeTime,
kBufferSize * (UInt64)numIterations, true, totalCompressedSize);
System.Console.WriteLine(" Average");
return 0;
}
/// <summary>
/// Decompresses the inputBytes from Lzma
/// </summary>
/// <param name="inputBytes">Bytes to decompress</param>
/// <returns>Decompressed bytes</returns>
public static byte[] Decompress(byte[] inputBytes)
{
if (inputBytes == null)
throw new ArgumentNullException("inputBytes");
var decoder = new Decoder();
var newOutStream = new MemoryStream();
var newInStream = new MemoryStream(inputBytes);
newInStream.Seek(0, 0);
var properties2 = new byte[5];
if (newInStream.Read(properties2, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
var outSize = 0L;
for (int i = 0; i < 8; i++)
{
var v = newInStream.ReadByte();
if (v < 0)
throw (new Exception("Can't Read 1"));
outSize |= ((long)(byte)v) << (8 * i);
}
var compressedSize = newInStream.Length - newInStream.Position;
decoder.SetDecoderProperties(properties2);
decoder.Code(newInStream, newOutStream, compressedSize, outSize, null);
return newOutStream.ToArray();
}
/// <summary>
/// Decompress LZMA compressed stream into outStream.
/// Remeber to set desirable positions in input and output streams.
/// </summary>
/// <param name="inStream">Input stream</param>
/// <param name="outStream">Output stream</param>
public static void Decompress(Stream inStream, Stream outStream)
{
byte[] properties = new byte[5];
if (inStream.Read(properties, 0, 5) != 5)
throw (new Exception("Input stream is too short."));
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
decoder.SetDecoderProperties(properties);
var br = new BinaryReader(inStream, Encoding.UTF8);
long decompressedSize = br.ReadInt64();
long compressedSize = br.ReadInt64();
decoder.Code(inStream, outStream, compressedSize, decompressedSize, null);
}
public void Read(System.IO.Stream instream)
{
{//Header
byte[] b = new byte[28];
instream.Read(b, 0, 28);
header.fourcc = BitConverter.ToUInt32(b, 0);
int fourcc = MakeFourCC('K', 'F', 'N', 'T');
header.version = BitConverter.ToUInt32(b, 4);
header.start_ptr = BitConverter.ToUInt32(b, 8);
header.validate_chars = BitConverter.ToUInt32(b, 12);
header.non_empty_chars = BitConverter.ToUInt32(b, 16);
header.char_size = BitConverter.ToUInt32(b, 20);
header._base = BitConverter.ToInt16(b, 24);
header.scale = BitConverter.ToInt16(b, 25);
}
{
//instream.Seek(header.start_ptr, System.IO.SeekOrigin.Begin);
Dictionary<Int32, Int32> nedata = new Dictionary<int, int>();
for (int i = 0; i < header.non_empty_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
int l = BitConverter.ToInt32(buf, 0);
int r = BitConverter.ToInt32(buf, 4);
chardata[l] = new KeyValuePair<int, uint>(r, 0);
//nedata[l] = r;
}
Dictionary<Int32, UInt32> vdata = new Dictionary<int, UInt32>();
for (int i = 0; i < header.validate_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
int l = BitConverter.ToInt32(buf, 0);
uint r = BitConverter.ToUInt32(buf, 4);
if (chardata.ContainsKey(l))
{
chardata[l] = new KeyValuePair<int, uint>(chardata[l].Key, r);
}
else
{
chardata[l] = new KeyValuePair<int, uint>(-1, r);
}
//vdata[l] = r;
}
}
{//FontInfo
fontinfo = new List<font_info>();
for (int i = 0; i < header.non_empty_chars; i++)
{
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
font_info info;
info.top = BitConverter.ToInt16(buf, 0);
info.left = BitConverter.ToInt16(buf, 2);
info.width = BitConverter.ToUInt16(buf, 4);
info.height = BitConverter.ToUInt16(buf, 6);
fontinfo.Add(info);
}
}
{//FontData
float timer = 0;
fontdata = new List<byte[]>();
for (int i = 0; i < header.non_empty_chars; i++)
{
DateTime t = DateTime.Now;
byte[] buf = new byte[8];
instream.Read(buf, 0, 8);
ulong len = BitConverter.ToUInt64(buf, 0);
byte[] data = new byte[len];
instream.Read(data, 0, (int)len);
System.IO.MemoryStream sin = new System.IO.MemoryStream(data);
System.IO.MemoryStream sout = new System.IO.MemoryStream();
SevenZip.Compression.LZMA.Decoder decoder = new SevenZip.Compression.LZMA.Decoder();
byte[] properties = new byte[5];
if (sin.Read(properties, 0, 5) != 5)
throw (new Exception("input .lzma is too short"));
decoder.SetDecoderProperties(properties);
//sin.Read(buf, 0,2);
int len2 = (int)(header.char_size * header.char_size);
decoder.Code(sin, sout, (long)len - 5, (int)len2, null);
sout.Position = 0;
byte[] decodedata = new byte[len2];
sout.Read(decodedata, 0, len2);
fontdata.Add(decodedata);
DateTime t2 = DateTime.Now;
float delta = (float)(t2 - t).TotalSeconds;
timer += delta;
}
Debug.Log("Load time total:" + timer + " per:" + (timer / header.non_empty_chars));
}
}
