public static byte[] Deflate(ReadOnlySpan <int> ints)
{
if (ints == null)
{
throw new ArgumentNullException(nameof(ints));
}
byte[] input = new byte[ints.Length * sizeof(int)];
var asBytes = MemoryMarshal.Cast <int, byte>(ints);
asBytes.CopyTo(input.AsSpan());
var deflater = new Deflater();
deflater.SetLevel(Deflater.DEFAULT_COMPRESSION);
deflater.SetInput(input);
deflater.Finish();
using var ms = new MemoryStream(input.Length);
byte[] buf = new byte[1024];
while (!deflater.IsFinished)
{
int count = deflater.Deflate(buf);
ms.Write(buf, 0, count);
}
return(ms.ToArray());
}
/// <summary>
/// Encode a RIF byte array to zRIF string.
/// </summary>
/// <param name="zrif">The zRIF string.</param>
/// <returns>The zRIF string or null on error.</returns>
public static string Encode(byte[] rif)
{
byte[] output = new byte[128 + 2];
if ((rif.Length != 512) && (rif.Length != 1024))
{
Console.Error.WriteLine("[ERROR] invalid RIF length");
return(null);
}
var deflater = new Deflater();
deflater.SetDictionary(zrif_dict);
deflater.SetInput(rif);
deflater.SetLevel(Deflater.BEST_COMPRESSION);
deflater.SetStrategy(DeflateStrategy.Default);
deflater.Finish();
int size = deflater.Deflate(output, 0, output.Length - 2);
if (!deflater.IsFinished)
{
Console.Error.WriteLine("[ERROR] Deflate error");
return(null);
}
// Don't have that much control over Window size so our header needs to be adjusted.
if ((output[0] == 0x78) && (output[1] == 0xF9))
{
output[0] = 0x28;
output[1] = 0xEE;
}
// Adjust the size to be a multiple of 3 so that we don't get padding
return(Convert.ToBase64String(output, 0, ((size + 2) / 3) * 3));
}
private static MemoryStream Compress(MemoryStream stream)
{
stream.Position = 0;
byte[] input = stream.ToArray();
byte[] size = BitConverter.GetBytes(Convert.ToUInt32(input.Length));
Deflater compressor = new Deflater();
compressor.SetLevel(Deflater.BEST_SPEED);
compressor.SetInput(input);
compressor.Finish();
MemoryStream bos = new MemoryStream(input.Length);
byte[] buf = new byte[1024];
while (!compressor.IsFinished)
{
int count = compressor.Deflate(buf);
bos.Write(buf, 0, count);
}
MemoryStream result = new MemoryStream();
BinaryWriter writeBinary = new BinaryWriter(result);
writeBinary.Write(size);
writeBinary.Write(bos.ToArray());
writeBinary.Close();
return(result);
}
/// <summary>
/// Compresses the specified byte range using the
/// specified compressionLevel (constants are defined in
/// java.util.zip.Deflater).
/// </summary>
public static byte[] Compress(sbyte[] value, int offset, int length, int compressionLevel)
{
/* Create an expandable byte array to hold the compressed data.
* You cannot use an array that's the same size as the orginal because
* there is no guarantee that the compressed data will be smaller than
* the uncompressed data. */
ByteArrayOutputStream bos = new ByteArrayOutputStream(length);
Deflater compressor = SharpZipLib.CreateDeflater();
try
{
compressor.SetLevel(compressionLevel);
compressor.SetInput((byte[])(Array)value, offset, length);
compressor.Finish();
// Compress the data
var buf = new byte[1024];
while (!compressor.IsFinished)
{
int count = compressor.Deflate(buf);
bos.Write(buf, 0, count);
}
}
finally
{
}
return(bos.ToArray());
}
public byte[] Compress(byte[] input, int offset, int length)
{
// Create the compressor with highest level of compression
Deflater compressor = new Deflater();
compressor.SetLevel(Deflater.BEST_COMPRESSION);
// Give the compressor the data to compress
compressor.SetInput(input, offset, length);
compressor.Finish();
/*
* Create an expandable byte array to hold the compressed data.
* You cannot use an array that's the same size as the orginal because
* there is no guarantee that the compressed data will be smaller than
* the uncompressed data.
*/
MemoryStream bos = new MemoryStream(input.Length);
// Compress the data
byte[] buf = new byte[1024];
while (!compressor.IsFinished)
{
int count = compressor.Deflate(buf);
bos.Write(buf, 0, count);
}
// Get the compressed data
return(bos.ToArray());
}
public void SetLevel(int level)
{
if (level < 1)
{
throw new ArgumentOutOfRangeException("level");
}
Deflater.SetLevel(level);
}
/// <summary>
/// Sets the active compression level (0-9). The new level will be activated
/// immediately.
/// </summary>
/// <param name="level">The compression level to set.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// Level specified is not supported.
/// </exception>
/// <see cref="Deflater"/>
public void SetLevel(int level)
{
if (level < Deflater.NO_COMPRESSION || level > Deflater.BEST_COMPRESSION)
{
throw new ArgumentOutOfRangeException(nameof(level), "Compression level must be 0-9");
}
Deflater.SetLevel(level);
}
/////////////////////////////////////////////////////////////////////////////////////////
/// Compression ///
/////////////////////////////////////////////////////////////////////////////////////////
public static byte[] Compress(byte[] data, int compressionLevel)
{
Deflater defl = new Deflater();
defl.SetInput(data);
defl.SetLevel(compressionLevel);
byte[] compressedData = new byte[100000];
defl.Deflate(compressedData);
return(compressedData);
}
/// <summary>
/// 对data从offset开始，长度为len进行level级别压缩，输出到outs
/// </summary>
/// <param name="data"></param>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="level"></param>
/// <param name="outStream"></param>
/// <returns></returns>
public static void Compress(byte[] data, int offset, int length, int level, Stream outStream)
{
var deflater = new Deflater();
if (level >= 0 && level <= 9)
{
deflater.SetLevel(level);
}
var deflaterOutputStream = new DeflaterOutputStream(outStream, deflater, 4 * 1024);
deflaterOutputStream.Write(data, offset, length);
deflaterOutputStream.Finish();
}
/// <summary>
/// 对ins进行level级别压缩，输出到outs
/// </summary>
/// <param name="inStream"></param>
/// <param name="level"></param>
/// <param name="outStream"></param>
/// <returns></returns>
public static void Compress(Stream inStream, int level, Stream outStream)
{
var deflater = new Deflater();
if (level >= 0 && level <= 9)
{
deflater.SetLevel(level);
}
var deflaterOutputStream = new DeflaterOutputStream(outStream, deflater, 4 * 1024);
StdioUtil.CopyStream(inStream, deflaterOutputStream);
deflaterOutputStream.Finish();
}
public static byte[] ZipBytes(byte[] input)
{
MemoryStream ms = new MemoryStream();
Deflater zipper = new Deflater();
zipper.SetLevel(5);
Stream st = new DeflaterOutputStream(ms, zipper);
st.Write(input, 0, input.Length);
st.Flush();
st.Close();
byte[] result = (byte[])ms.ToArray();
return(result);
}
public static byte[] Compress(byte[] content)
{
Deflater compressor = new Deflater();
compressor.SetLevel(Deflater.BEST_COMPRESSION);
compressor.SetInput(content);
compressor.Finish();
using (MemoryStream ms = new MemoryStream(content.Length))
{
byte[] buf = new byte[1024];
while (!compressor.IsFinished)
{
int n = compressor.Deflate(buf);
ms.Write(buf, 0, n);
}
return(ms.ToArray());
}
}
public static byte[] Compress(byte[] content)
{
//return content;
Deflater compressor = new Deflater(); //用于压缩数据包
compressor.SetLevel(Deflater.BEST_COMPRESSION);
compressor.SetInput(content); // 要压缩的数据包
compressor.Finish(); // 完成,
using (MemoryStream bos = new MemoryStream(content.Length))
{
var buf = new byte[1024];
while (!compressor.IsFinished)
{
int n = compressor.Deflate(buf); // 压缩，返回的是数据包经过缩缩后的大小
bos.Write(buf, 0, n);
}
return(bos.ToArray());
}
}
public static int Compress(byte[] input, byte[] buffer, ref byte[] result, int level = Deflater.BEST_COMPRESSION)
{
var deflater = new Deflater();
deflater.SetLevel(level);
deflater.SetInput(input);
deflater.Finish();
buffer = buffer ?? new byte[BuffSize];
MemoryStream ms;
if (result != null)
{
ms = new MemoryStream(result);
}
else
{
ms = new MemoryStream(input.Length);
}
var length = 0;
while (!deflater.IsFinished)
{
var count = deflater.Deflate(buffer);
ms.Write(buffer, 0, count);
length += count;
}
if (result == null)
{
result = ms.ToArray();
}
ms.Dispose();
return(length);
}
public override void Write(BinaryWriter NewPicture)
{
Deflater defl = new Deflater();
defl.SetInput(decopressedData);
defl.SetLevel(compression.FLEVEL);
byte[] compressedData = new byte[100000];
defl.Deflate(compressedData);
//byte[] data = compressedData.Where(x => x != 0).ToArray();
//byte[] compressedData = Compress(decopressedData);
Console.WriteLine("{0} {1}", compressedData.Length, byteData.Length);
/*foreach (byte b in compressedData) Console.Write(b);
* Console.WriteLine("\n\n");
* foreach (byte b in byteData) Console.Write(b);
* Console.WriteLine("");*/
NewPicture.Write(BitConverter.GetBytes(compressedData.Length));
NewPicture.Write(byteSign);
NewPicture.Write(compressedData);
NewPicture.Write(byteCheckSum);
}
public static byte[] ZipBytes(byte[] input, int compressLevel)
{
UtilsFunc.Assert(input != null);
Deflater compressor = new Deflater();
compressor.SetLevel(compressLevel);
compressor.SetInput(input);
compressor.Finish();
byte[] ret = null;
using (MemoryStream bos = new MemoryStream(input.Length))
{
byte[] buf = new byte[1024];
while (!compressor.IsFinished)
{
int count = compressor.Deflate(buf);
bos.Write(buf, 0, count);
}
ret = bos.ToArray();
}
return(ret);
}
public static byte[] Compress(byte[] input)
{
if (input == null || input.Length == 0)
{
Debug.LogError("Compress error inputBytes Len = 0");
return(input);
}
// Create the compressor with highest level of compression
Deflater compressor = GetDeflater();
compressor.SetLevel(Deflater.BEST_COMPRESSION);
// Give the compressor the data to compress
compressor.SetInput(input);
compressor.Finish();
/*
* Create an expandable byte array to hold the compressed data.
* You cannot use an array that's the same size as the orginal because
* there is no guarantee that the compressed data will be smaller than
* the uncompressed data.
*/
MemoryStream result = new MemoryStream(input.Length);
// Compress the data
byte[] buffer = new byte[1024];
while (!compressor.IsFinished)
{
int count = compressor.Deflate(buffer);
result.Write(buffer, 0, count);
}
// Get the compressed data
return(result.ToArray());
}
public void SetLevel(int level)
{
Deflater.SetLevel(level);
_defaultCompressionLevel = level;
}
/// <summary>
/// Starts a new Zip entry. It automatically closes the previous
/// entry if present.
/// All entry elements bar name are optional, but must be correct if present.
/// If the compression method is stored and the output is not patchable
/// the compression for that entry is automatically changed to deflate level 0
/// </summary>
/// <param name="entry">
/// the entry.
/// </param>
/// <exception cref="System.ArgumentNullException">
/// if entry passed is null.
/// </exception>
/// <exception cref="System.IO.IOException">
/// if an I/O error occured.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// if stream was finished
/// </exception>
/// <exception cref="ZipException">
/// Too many entries in the Zip file<br/>
/// Entry name is too long<br/>
/// Finish has already been called<br/>
/// </exception>
public void PutNextEntry(ZipEntry entry)
{
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
if (entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (curEntry != null)
{
CloseEntry();
}
if (entries.Count == int.MaxValue)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod method = entry.CompressionMethod;
int compressionLevel = defaultCompressionLevel;
// Clear flags that the library manages internally
entry.Flags &= (int)GeneralBitFlags.UnicodeText;
patchEntryHeader = false;
bool headerInfoAvailable;
// No need to compress - definitely no data.
if (entry.Size == 0)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0;
method = CompressionMethod.Stored;
headerInfoAvailable = true;
}
else
{
headerInfoAvailable = (entry.Size >= 0) && entry.HasCrc && entry.CompressedSize >= 0;
// Switch to deflation if storing isnt possible.
if (method == CompressionMethod.Stored)
{
if (!headerInfoAvailable)
{
if (!CanPatchEntries)
{
// Can't patch entries so storing is not possible.
method = CompressionMethod.Deflated;
compressionLevel = 0;
}
}
else // entry.size must be > 0
{
entry.CompressedSize = entry.Size;
headerInfoAvailable = entry.HasCrc;
}
}
}
if (headerInfoAvailable == false)
{
if (CanPatchEntries == false)
{
// Only way to record size and compressed size is to append a data descriptor
// after compressed data.
// Stored entries of this form have already been converted to deflating.
entry.Flags |= 8;
}
else
{
patchEntryHeader = true;
}
}
entry.Offset = offset;
entry.CompressionMethod = (CompressionMethod)method;
curMethod = method;
sizePatchPos = -1;
if ((useZip64_ == UseZip64.On) || ((entry.Size < 0) && (useZip64_ == UseZip64.Dynamic)))
{
entry.ForceZip64();
}
// Write the local file header
WriteLeInt(ZipConstants.LocalHeaderSignature);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte)entry.CompressionMethodForHeader);
WriteLeInt((int)entry.DosTime);
// TODO: Refactor header writing. Its done in several places.
if (headerInfoAvailable)
{
WriteLeInt((int)entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(entry.IsCrypted ? (int)entry.CompressedSize + ZipConstants.CryptoHeaderSize : (int)entry.CompressedSize);
WriteLeInt((int)entry.Size);
}
}
else
{
if (patchEntryHeader)
{
crcPatchPos = BaseOutputStream.Position;
}
WriteLeInt(0); // Crc
if (patchEntryHeader)
{
sizePatchPos = BaseOutputStream.Position;
}
// For local header both sizes appear in Zip64 Extended Information
if (entry.LocalHeaderRequiresZip64 || patchEntryHeader)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(0); // Compressed size
WriteLeInt(0); // Uncompressed size
}
}
byte[] name = ZipStrings.ConvertToArray(entry.Flags, entry.Name);
if (name.Length > 0xFFFF)
{
throw new ZipException("Entry name too long.");
}
var ed = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
ed.StartNewEntry();
if (headerInfoAvailable)
{
ed.AddLeLong(entry.Size);
ed.AddLeLong(entry.CompressedSize);
}
else
{
ed.AddLeLong(-1);
ed.AddLeLong(-1);
}
ed.AddNewEntry(1);
if (!ed.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (patchEntryHeader)
{
sizePatchPos = ed.CurrentReadIndex;
}
}
else
{
ed.Delete(1);
}
if (entry.AESKeySize > 0)
{
AddExtraDataAES(entry, ed);
}
byte[] extra = ed.GetEntryData();
WriteLeShort(name.Length);
WriteLeShort(extra.Length);
if (name.Length > 0)
{
BaseOutputStream.Write(name, 0, name.Length);
}
if (entry.LocalHeaderRequiresZip64 && patchEntryHeader)
{
sizePatchPos += BaseOutputStream.Position;
}
if (extra.Length > 0)
{
BaseOutputStream.Write(extra, 0, extra.Length);
}
offset += ZipConstants.LocalHeaderBaseSize + name.Length + extra.Length;
// Fix offsetOfCentraldir for AES
if (entry.AESKeySize > 0)
{
offset += entry.AESOverheadSize;
}
// Activate the entry.
curEntry = entry;
crc.Reset();
if (method == CompressionMethod.Deflated)
{
Deflater.Reset();
Deflater.SetLevel(compressionLevel);
}
size = 0;
}
public void PutNextEntry(ZipEntry entry)
{
bool hasCrc;
if (entry == null)
{
throw new ArgumentNullException(nameof(entry));
}
if (_entries == null)
{
throw new InvalidOperationException("ZipOutputStream was finished");
}
if (_curEntry != null)
{
CloseEntry();
}
if (_entries.Count == 0x7fffffff)
{
throw new ZipException("Too many entries for Zip file");
}
CompressionMethod compressionMethod = entry.CompressionMethod;
int compressionLevel = _defaultCompressionLevel;
entry.Flags &= 0x800;
_patchEntryHeader = false;
if (entry.Size == 0L)
{
entry.CompressedSize = entry.Size;
entry.Crc = 0L;
compressionMethod = CompressionMethod.Stored;
hasCrc = true;
}
else
{
hasCrc = (entry.Size >= 0L) && entry.HasCrc;
if (compressionMethod == CompressionMethod.Stored)
{
if (!hasCrc)
{
if (!CanPatchEntries)
{
compressionMethod = CompressionMethod.Deflated;
compressionLevel = 0;
}
}
else
{
entry.CompressedSize = entry.Size;
hasCrc = entry.HasCrc;
}
}
}
if (!hasCrc)
{
if (!CanPatchEntries)
{
entry.Flags |= 8;
}
else
{
_patchEntryHeader = true;
}
}
if (Password != null)
{
entry.IsCrypted = true;
if (entry.Crc < 0L)
{
entry.Flags |= 8;
}
}
entry.Offset = _offset;
entry.CompressionMethod = compressionMethod;
_curMethod = compressionMethod;
_sizePatchPos = -1L;
if ((_useZip64 == UseZip64.On) || ((entry.Size < 0L) && (_useZip64 == UseZip64.Dynamic)))
{
entry.ForceZip64();
}
WriteLeInt(ZipConstants.LocalHeaderSignature);
WriteLeShort(entry.Version);
WriteLeShort(entry.Flags);
WriteLeShort((byte)entry.CompressionMethodForHeader);
WriteLeInt((int)entry.DosTime);
if (hasCrc)
{
WriteLeInt((int)entry.Crc);
if (entry.LocalHeaderRequiresZip64)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(entry.IsCrypted ? (((int)entry.CompressedSize) + 12) : ((int)entry.CompressedSize));
WriteLeInt((int)entry.Size);
}
}
else
{
if (_patchEntryHeader)
{
_crcPatchPos = BaseOutputStream.Position;
}
WriteLeInt(0);
if (_patchEntryHeader)
{
_sizePatchPos = BaseOutputStream.Position;
}
if (entry.LocalHeaderRequiresZip64 || _patchEntryHeader)
{
WriteLeInt(-1);
WriteLeInt(-1);
}
else
{
WriteLeInt(0);
WriteLeInt(0);
}
}
byte[] buffer = ZipConstants.ConvertToArray(entry.Flags, entry.Name);
if (buffer.Length > 0xffff)
{
throw new ZipException("Entry name too long.");
}
ZipExtraData extraData = new ZipExtraData(entry.ExtraData);
if (entry.LocalHeaderRequiresZip64)
{
extraData.StartNewEntry();
if (hasCrc)
{
extraData.AddLeLong(entry.Size);
extraData.AddLeLong(entry.CompressedSize);
}
else
{
extraData.AddLeLong(-1L);
extraData.AddLeLong(-1L);
}
extraData.AddNewEntry(1);
if (!extraData.Find(1))
{
throw new ZipException("Internal error cant find extra data");
}
if (_patchEntryHeader)
{
_sizePatchPos = extraData.CurrentReadIndex;
}
}
else
{
extraData.Delete(1);
}
if (entry.AesKeySize > 0)
{
AddExtraDataAes(entry, extraData);
}
byte[] entryData = extraData.GetEntryData();
WriteLeShort(buffer.Length);
WriteLeShort(entryData.Length);
if (buffer.Length > 0)
{
BaseOutputStream.Write(buffer, 0, buffer.Length);
}
if (entry.LocalHeaderRequiresZip64 && _patchEntryHeader)
{
_sizePatchPos += BaseOutputStream.Position;
}
if (entryData.Length > 0)
{
BaseOutputStream.Write(entryData, 0, entryData.Length);
}
_offset += (30 + buffer.Length) + entryData.Length;
if (entry.AesKeySize > 0)
{
_offset += entry.AesOverheadSize;
}
_curEntry = entry;
_crc.Reset();
if (compressionMethod == CompressionMethod.Deflated)
{
Deflater.Reset();
Deflater.SetLevel(compressionLevel);
}
_size = 0L;
if (entry.IsCrypted)
{
if (entry.AesKeySize > 0)
{
WriteAesHeader(entry);
}
else if (entry.Crc < 0L)
{
WriteEncryptionHeader(entry.DosTime << 0x10);
}
else
{
WriteEncryptionHeader(entry.Crc);
}
}
}