public static byte[] Deflate(byte[] uncompressedStream, ulong cBlockSize)
{
//ulong zBlocks = (((ulong)UncompressedStream.LongLength - ((ulong)UncompressedStream.LongLength % cBlockSize)) / cBlockSize)
// + ((ulong)UncompressedStream.LongLength % cBlockSize) == 0 ? 0u : 1u;
ulong zBlocks = (((ulong)uncompressedStream.LongLength - ((ulong)uncompressedStream.LongLength % cBlockSize)) / cBlockSize);
if ((ulong)uncompressedStream.LongLength % cBlockSize > 0)
{
zBlocks++;
}
var inStream = new MemoryStream(uncompressedStream);
var outStream = new MemoryStream();
byte[] outData;
var outZStream = new ZlibStream(outStream, CompressionMode.Compress, CompressionLevel.Default);
try
{
CopyStream(inStream, outZStream, cBlockSize);
outData = new byte[outStream.Length];
outStream.Read(outData, 0, (int)outStream.Length);
}
finally
{
outZStream.Close();
outStream.Close();
inStream.Close();
}
return(outData);
}
/// <summary>
/// Compress the contents of the provided array
/// </summary>
/// <param name="data">An uncompressed byte array</param>
/// <returns></returns>
public static byte[] Compress(byte[] data)
{
using (MemoryStream out1 = new MemoryStream())
{
ZlibStream deflaterOutputStream = new ZlibStream(out1, CompressionMode.Compress);
try
{
//for (int i = 0; i < data.Length; i++)
//deflaterOutputStream.WriteByte(data[i]);
deflaterOutputStream.Write(data, 0, data.Length); //Tony Qu changed the code
return(out1.ToArray());
}
catch (IOException e)
{
throw new RecordFormatException(e.ToString());
}
finally
{
out1.Close();
if (deflaterOutputStream != null)
{
deflaterOutputStream.Close();
}
}
}
}
private byte[] InternalExtract()
{
_stream.Position = _manifest.Offset;
var sizeBytes = new byte[4];
_stream.Read(sizeBytes, 0, 4);
int uncompressedSize = BitConverter.ToInt32(sizeBytes, 0);
if (uncompressedSize <= 0)
{
return(new byte[0]);
}
_stream.Position += 4;
var buffer = new byte[_manifest.UncompressedSize];
var zlibStream = new ZlibStream(_stream, CompressionMode.Decompress, true);
zlibStream.Read(buffer, 0, buffer.Length);
zlibStream.Close();
zlibStream.Dispose();
return(buffer);
}
public static byte[] Deflate(byte[] uncompressedStream, ulong cBlockSize)
{
ulong zBlocks = (uint)(Math.Ceiling((ulong)uncompressedStream.LongLength / (double)cBlockSize));
var inStream = new MemoryStream(uncompressedStream);
var outStream = new MemoryStream();
byte[] outData;
var outZStream = new ZlibStream(outStream, CompressionMode.Compress, CompressionLevel.BestCompression);
try
{
CopyStream(inStream, outZStream, cBlockSize);
outData = new byte[outStream.Length];
outStream.Read(outData, 0, (int)outStream.Length);
}
finally
{
outZStream.Close();
outStream.Close();
inStream.Close();
}
return(outData);
}
private static DataStream Inflate(DataStream source, EndiannessMode endianness)
{
DataStream dest = DataStreamFactory.FromMemory();
source.Seek(0);
var reader = new DataReader(source)
{
Endianness = endianness,
};
int size = reader.ReadInt32();
int chunkSize = reader.ReadInt32();
while (chunkSize != 0)
{
using var zlibStream = new ZlibStream(dest, CompressionMode.Decompress, true);
source.WriteSegmentTo(source.Position, chunkSize, zlibStream);
zlibStream.Close();
source.Seek(chunkSize, SeekOrigin.Current);
chunkSize = reader.ReadInt32();
}
if (dest.Length != size)
{
throw new ExtractionException("Result size doesn't match with expected size.");
}
return(dest);
}
/// <summary>
/// Decompresses the provided data, returning the inflated result.
/// </summary>
/// <param name="data">the deflated picture data.</param>
/// <returns>the inflated picture data.</returns>
private static byte[] InflatePictureData(byte[] data)
{
MemoryStream out1 = new MemoryStream();
ZlibStream in1 = null;
try
{
in1 = new ZlibStream(
new MemoryStream(data), CompressionMode.Decompress);
byte[] buf = new byte[4096];
int ReadBytes;
while ((ReadBytes = in1.Read(buf, 0, buf.Length)) > 0)
{
out1.Write(buf, 0, ReadBytes);
}
return(out1.ToArray());
}
catch (IOException e)
{
log.Log(POILogger.INFO, "Possibly corrupt compression or non-compressed data", e);
return(data);
}
finally
{
out1.Close();
if (in1 != null)
{
in1.Close();
}
}
}
public void Compress(string algorithm)
{
if (algorithm == CompressionAlgorithm.Deflate)
{
byte[] buffer = _memoryStream.ToArray();
MemoryStream ms = new MemoryStream();
DeflateStream deflateStream = new DeflateStream(ms, CompressionMode.Compress, true);
deflateStream.Write(buffer, 0, buffer.Length);
deflateStream.Close();
_memoryStream.Close();
_memoryStream = ms;
AMFReader amfReader = new AMFReader(_memoryStream);
AMFWriter amfWriter = new AMFWriter(_memoryStream);
_dataOutput = new DataOutput(amfWriter);
_dataInput = new DataInput(amfReader);
}
if (algorithm == CompressionAlgorithm.Zlib)
{
byte[] buffer = _memoryStream.ToArray();
MemoryStream ms = new MemoryStream();
ZlibStream zlibStream = new ZlibStream(ms, CompressionMode.Compress, true);
zlibStream.Write(buffer, 0, buffer.Length);
zlibStream.Flush();
zlibStream.Close();
zlibStream.Dispose();
_memoryStream.Close();
_memoryStream = ms;
AMFReader amfReader = new AMFReader(_memoryStream);
AMFWriter amfWriter = new AMFWriter(_memoryStream);
_dataOutput = new DataOutput(amfWriter);
_dataInput = new DataInput(amfReader);
}
}
/// <summary>
/// Decompresses the specified data.
/// </summary>
/// <param name="data">The compressed byte array.</param>
/// <param name="pos">The starting position into the byte array.</param>
/// <param name="Length">The number of compressed bytes to decompress.</param>
/// <returns>An uncompressed byte array</returns>
public static byte[] Decompress(byte[] data, int pos, int Length)
{
byte[] compressedData = new byte[Length];
Array.Copy(data, pos + 50, compressedData, 0, Length);
ZlibStream inflaterInputStream = new ZlibStream(new MemoryStream(compressedData), CompressionMode.Decompress);
MemoryStream out1 = new MemoryStream();
int c;
try
{
while ((c = inflaterInputStream.ReadByte()) != -1)
{
out1.WriteByte((byte)c);
}
return(out1.ToArray());
}
catch (IOException e)
{
throw new RecordFormatException(e.ToString());
}
finally
{
out1.Close();
if (inflaterInputStream != null)
{
inflaterInputStream.Close();
}
}
}
public void Uncompress(string algorithm)
{
if (algorithm == CompressionAlgorithm.Zlib)
{
Position = 0;
ZlibStream deflateStream = new ZlibStream(_memoryStream, CompressionMode.Decompress, false);
MemoryStream ms = new MemoryStream();
byte[] buffer = new byte[1024];
// Chop off the first two bytes
//int b = _memoryStream.ReadByte();
//b = _memoryStream.ReadByte();
while (true)
{
int readCount = deflateStream.Read(buffer, 0, buffer.Length);
if (readCount > 0)
{
ms.Write(buffer, 0, readCount);
}
else
{
break;
}
}
deflateStream.Close();
_memoryStream.Close();
_memoryStream.Dispose();
_memoryStream = ms;
_memoryStream.Position = 0;
}
if (algorithm == CompressionAlgorithm.Deflate)
{
Position = 0;
DeflateStream deflateStream = new DeflateStream(_memoryStream, CompressionMode.Decompress, false);
MemoryStream ms = new MemoryStream();
byte[] buffer = new byte[1024];
while (true)
{
int readCount = deflateStream.Read(buffer, 0, buffer.Length);
if (readCount > 0)
{
ms.Write(buffer, 0, readCount);
}
else
{
break;
}
}
deflateStream.Close();
_memoryStream.Close();
_memoryStream.Dispose();
_memoryStream = ms;
_memoryStream.Position = 0;
}
AMFReader amfReader = new AMFReader(_memoryStream);
AMFWriter amfWriter = new AMFWriter(_memoryStream);
_dataOutput = new DataOutput(amfWriter);
_dataInput = new DataInput(amfReader);
}
/// <summary>
/// Decompress a byte array into another byte array of the specified size
/// </summary>
/// <param name="toDecompress">Data to decompress</param>
/// <param name="uncompressedSize">Size of the data once decompressed</param>
/// <returns>Decompressed data as a byte array</returns>
public static byte[] Decompress(byte[] toDecompress, int uncompressedSize)
{
ZlibStream stream = new ZlibStream(new MemoryStream(toDecompress, false), CompressionMode.Decompress);
byte[] decompressed = new byte[uncompressedSize];
stream.Read(decompressed, 0, uncompressedSize);
stream.Close();
return(decompressed);
}
/// <summary>
/// Decompress a byte array into another byte array of the specified size
/// </summary>
/// <param name="to_decompress">Data to decompress</param>
/// <param name="size_uncompressed">Size of the data once decompressed</param>
/// <returns>Decompressed data as a byte array</returns>
public static byte[] Decompress(byte[] to_decompress, int size_uncompressed)
{
ZlibStream stream = new ZlibStream(new System.IO.MemoryStream(to_decompress, false), CompressionMode.Decompress);
byte[] packetData_decompressed = new byte[size_uncompressed];
stream.Read(packetData_decompressed, 0, size_uncompressed);
stream.Close();
return(packetData_decompressed);
}
private static byte[] ZlibCompress(byte[] data, int index, int count)
{
using var inputMemoryStream = new MemoryStream(data, index, count);
using var outputMemoryStream = new MemoryStream();
using var zlibStream = new ZlibStream(outputMemoryStream, CompressionMode.Compress, CompressionLevel.BestCompression);
inputMemoryStream.CopyTo(zlibStream);
zlibStream.Close();
return(outputMemoryStream.ToArray());
}
static byte[] Compress(byte[] buffer)
{
MemoryStream ms = new MemoryStream();
ZlibStream str = new ZlibStream(ms, CompressionMode.Compress, CompressionLevel.Level6, true);
str.Write(buffer, 0x00, buffer.Length);
str.Close();
ms.Seek(0x00, SeekOrigin.Begin);
return(ms.ToArray());
}
/// <summary>
/// Decompress a byte array into another byte array of the specified size
/// </summary>
/// <param name="to_decompress">Data to decompress</param>
/// <param name="size_uncompressed">Size of the data once decompressed</param>
/// <returns>Decompressed data as a byte array</returns>
public static byte[] Decompress(byte[] to_decompress, int size_uncompressed)
{
using var stream = new ZlibStream(new MemoryStream(to_decompress, false), CompressionMode.Decompress, CompressionLevel.BestSpeed);
byte[] packetData_decompressed = new byte[size_uncompressed];
stream.Read(packetData_decompressed, 0, size_uncompressed);
stream.Close();
return(packetData_decompressed);
}
public static byte[] CompressZLib(this byte[] @this)
{
using (var ms = new MemoryStream())
using (var zlib = new ZlibStream(ms, CompressionMode.Compress))
{
zlib.Write(@this, 0, @this.Length);
zlib.Close();
return(ms.ToArray());
}
}
private byte[] Inflate(byte[] buffer, int sizeDecompressed, out int sizeCompressed, int compressionLevel)
{
MemoryStream memoryStream = new MemoryStream();
ZlibStream zlibStream = new ZlibStream(memoryStream, CompressionMode.Compress, (CompressionLevel)compressionLevel, leaveOpen: true);
zlibStream.Write(buffer, 0, sizeDecompressed);
zlibStream.Flush();
zlibStream.Close();
sizeCompressed = (int)memoryStream.Length;
return(memoryStream.ToArray());
}
public byte[] Inflate(byte[] buffer, int sizeDecompressed, out int sizeCompressed, int compressionLevel)
{
MemoryStream output = new MemoryStream();
ZlibStream zs = new ZlibStream(output, CompressionMode.Compress, (CompressionLevel)compressionLevel, true);
zs.Write(buffer, 0, sizeDecompressed);
zs.Flush();
zs.Close();
sizeCompressed = (int)output.Length;
return(output.ToArray());
}
public static MemoryStream CompressStream(MemoryStream stream)
{
stream.Position = 0;
var compressedStream = new MemoryStream();
var zOut = new ZlibStream(compressedStream, CompressionMode.Compress, CompressionLevel.BestCompression, true);
CopyStream(stream, zOut);
zOut.Close();
compressedStream.Position = 0;
return(compressedStream);
}
public static MemoryStream DecompressStream(MemoryStream stream)
{
stream.Position = 0;
var decompressedStream = new MemoryStream();
var zOut = new ZlibStream(decompressedStream, CompressionMode.Decompress, true);
CopyStream(stream, zOut);
zOut.Close();
decompressedStream.Position = 0;
return(decompressedStream);
}
public static byte[] Compress(byte[] buffer)
{
byte[] compressed;
using (var input = new MemoryStream(buffer))
using (var compressStream = new MemoryStream())
using (var compressor = new ZlibStream(compressStream, CompressionMode.Compress, CompressionLevel.BestCompression, true)) {
input.CopyTo(compressor);
compressor.Close();
compressed = compressStream.ToArray();
}
return(compressed);
}
private void EndWrite()
{
if (zstream != null)
{
zstream.Close();
}
if (dstream != null)
{
WriteChunk("IDAT", dstream.GetDataSoFar());
}
WriteChunk("IEND", new byte[0]);
}
private static byte[] ZlibCompress(byte[] decompressedData)
{
using (var inputMemoryStream = new MemoryStream(decompressedData))
using (var outputMemoryStream = new MemoryStream())
using (var zlibStream = new ZlibStream(outputMemoryStream, CompressionMode.Compress, CompressionLevel.BestCompression))
{
inputMemoryStream.CopyTo(zlibStream);
zlibStream.Close();
return(outputMemoryStream.ToArray());
}
}
private static string decompressFile(string inputFile)
{
var outputFile = inputFile + ".raw";
var sr = File.OpenRead(inputFile);
var s = new ZlibStream(sr, CompressionMode.Decompress);
var bytes = s.ReadToEnd().ToArray();
File.WriteAllBytes(outputFile, bytes);
s.Close();
sr.Close();
return(outputFile);
}
private static MemoryStream Deflate(byte[] data)
{
var output = new MemoryStream();
using (Stream input = new ZlibStream(output, Ionic.Zlib.CompressionMode.Compress,
CompressionLevel.BestCompression, true))
{
input.Write(data, 0, data.Length);
input.Close();
}
return(output);
}
public static string GetCompressedBinaryData(string p_Content)
{
string data;
using (MemoryStream dataStream = new MemoryStream(Encoding.UTF8.GetBytes(p_Content ?? ""))) {
using (MemoryStream compressStream = new MemoryStream()) {
using (ZlibStream deflateStream = new ZlibStream(compressStream, CompressionMode.Compress, CompressionLevel.Level8)) {
dataStream.CopyTo(deflateStream);
deflateStream.Close();
data = Convert.ToBase64String(compressStream.ToArray());
}
}
}
return(data);
}
public static string GetDecompressedBinaryData(string p_Content)
{
string decompressedData;
using (MemoryStream dataStream = new MemoryStream(Convert.FromBase64String(p_Content))) {
using (MemoryStream decompressStream = new MemoryStream()) {
using (ZlibStream deflateStream = new ZlibStream(decompressStream, CompressionMode.Decompress)) {
dataStream.CopyTo(deflateStream);
deflateStream.Close();
decompressedData = Encoding.UTF8.GetString(decompressStream.ToArray());
}
}
}
return(decompressedData);
}
public static bool SaveJaz(string data, string fileName)
{
try
{
System.IO.MemoryStream msSinkCompressed = new System.IO.MemoryStream();
ZlibStream zOut = new ZlibStream(msSinkCompressed, CompressionMode.Compress, CompressionLevel.BestCompression, true);
CopyStream(StringToMemoryStream(data), zOut);
zOut.Close();
FileStream file = new FileStream(fileName, FileMode.Create, System.IO.FileAccess.Write);
msSinkCompressed.WriteTo(file);
file.Close();
return(true);
}
catch { }
return(false);
}
private static void decompressDlm(string filepath, string outputFolder)
{
if (!Directory.Exists(outputFolder))
{
Directory.CreateDirectory(outputFolder);
}
var mapId = Path.GetFileNameWithoutExtension(filepath);
var or = File.OpenRead(filepath);
var s = new ZlibStream(or, CompressionMode.Decompress);
var mapBytes = s.ReadToEnd();
File.WriteAllBytes(Path.Combine(outputFolder, mapId + ".map"), mapBytes.ToArray());
s.Close();
or.Close();
}
private static void CompressZlib(Stream uncompressed, Stream target)
{
var buffer = new byte[4096];
int readBytes;
var zip = new ZlibStream(target, CompressionMode.Compress)
{
BufferSize = 4096
};
do
{
readBytes = uncompressed.Read(buffer, 0, buffer.Length);
zip.Write(buffer, 0, readBytes);
} while (readBytes > 0);
zip.Close();
}
public static byte[] CompressData(byte[] data)
{
using (MemoryStream compressedStream = new MemoryStream())
{
var deflateStream = new ZlibStream(compressedStream, Ionic.Zlib.CompressionMode.Compress, Ionic.Zlib.CompressionLevel.Default, true);
deflateStream.Write(data, 0, data.Length);
deflateStream.Close();
var compressedData = compressedStream.ReadAllBytes();
// Make sure compressed data is aligned with 0x10
int padding = compressedData.Length % 0x10 == 0 ? 0 : (0x10 - compressedData.Length % 0x10);
Array.Resize(ref compressedData, compressedData.Length + padding);
return(compressedData);
}
}
