using Syroot.BinaryData;
using System.IO;
using System.IO.Compression;
using OpenTK;
using K4os.Compression.LZ4.Streams;
using System.Windows.Forms;
using ICSharpCode.SharpZipLib.Zip.Compression.Streams;
namespace Switch_Toolbox.Library.IO
{
public enum DataType
{
uint8,
int8,
uint16,
int16,
int32,
uint32,
int64,
uint64,
}
public class STLibraryCompression
{
public static byte[] CompressFile(byte[] data, IFileFormat format)
{
int Alignment = 0;
if (format.IFileInfo != null)
Alignment = format.IFileInfo.Alignment;
switch (format.IFileInfo.CompressionType)
{
case CompressionType.Yaz0:
return EveryFileExplorer.YAZ0.Compress(data, 3, (uint)Alignment);
case CompressionType.None:
return data;
default:
return data;
}
}
public class ZSTD
{
public static byte[] Decompress(byte[] b)
{
using (var decompressor = new ZstdNet.Decompressor())
{
return decompressor.Unwrap(b);
}
}
public static byte[] Decompress(byte[] b, int MaxDecompressedSize)
{
using (var decompressor = new ZstdNet.Decompressor())
{
return decompressor.Unwrap(b, MaxDecompressedSize);
}
}
public static byte[] Compress(byte[] b)
{
using (var compressor = new ZstdNet.Compressor())
{
return compressor.Wrap(b);
}
}
}
public class ZLIB
{
public static byte[] Decompress(byte[] b)
{
var output = new MemoryStream();
using (var compressedStream = new MemoryStream(b)) {
using (var zipStream = new DeflateStream(compressedStream, CompressionMode.Decompress))
{
zipStream.CopyTo(output);
return output.ToArray();
}
}
}
public static byte[] Compress(byte[] b, uint Position = 0)
{
var output = new MemoryStream();
output.Write(new byte[] { 0x78, 0xDA }, 0, 2);
using (var decompressedStream = new MemoryStream(output.ToArray()))
{
using (var zipStream = new DeflateStream(output, CompressionMode.Compress))
{
zipStream.Write(b, 2, b.Length);
return output.ToArray();
}
}
}
public static void CopyStream(System.IO.Stream input, System.IO.Stream output)
{
byte[] buffer = new byte[2000];
int len;
while ((len = input.Read(buffer, 0, 2000)) > 0)
{
output.Write(buffer, 0, len);
}
output.Flush();
}
}
public class LZ77
{
///
/// Decompresses LZ77-compressed data from the given input stream.
///
/// The input stream to read from.
/// The decompressed data.
public static byte[] Decompress(byte[] input)
{
BinaryReader reader = new BinaryReader(new MemoryStream(input));
// Check LZ77 type.
// if (reader.ReadByte() != 0x10)
// throw new System.Exception("Input stream does not contain LZ77-compressed data.");
// Read the size.
int size = reader.ReadUInt16() | (reader.ReadByte() << 16);
// Create output stream.
MemoryStream output = new MemoryStream(size);
// Begin decompression.
while (output.Length < size)
{
// Load flags for the next 8 blocks.
int flagByte = reader.ReadByte();
// Process the next 8 blocks.
for (int i = 0; i < 8; i++)
{
// Check if the block is compressed.
if ((flagByte & (0x80 >> i)) == 0)
{
// Uncompressed block; copy single byte.
output.WriteByte(reader.ReadByte());
}
else
{
// Compressed block; read block.
ushort block = reader.ReadUInt16();
// Get byte count.
int count = ((block >> 4) & 0xF) + 3;
// Get displacement.
int disp = ((block & 0xF) << 8) | ((block >> 8) & 0xFF);
// Save current position and copying position.
long outPos = output.Position;
long copyPos = output.Position - disp - 1;
// Copy all bytes.
for (int j = 0; j < count; j++)
{
// Read byte to be copied.
output.Position = copyPos++;
byte b = (byte)output.ReadByte();
// Write byte to be copied.
output.Position = outPos++;
output.WriteByte(b);
}
}
// If all data has been decompressed, stop.
if (output.Length >= size)
{
break;
}
}
}
output.Position = 0;
return output.ToArray();
}
}
public class GZIP
{
public static byte[] Decompress(byte[] b)
{
using (MemoryStream mem = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(new MemoryStream(b), CompressionMode.Decompress))
{
gzip.CopyTo(mem);
mem.Write(b, 0, b.Length);
}
return mem.ToArray();
}
}
public static byte[] Compress(byte[] b)
{
using (MemoryStream mem = new MemoryStream())
{
using (GZipStream gzip = new GZipStream(mem,
CompressionMode.Compress, true))
{
gzip.Write(b, 0, b.Length);
}
return mem.ToArray();
}
}
}
public class Type_LZ4F
{
public static byte[] Decompress(byte[] data)
{
using (MemoryStream mem = new MemoryStream())
{
using (var source = LZ4Stream.Decode(new MemoryStream(data)))
{
source.CopyTo(mem);
}
return mem.ToArray();
}
}
public static byte[] Compress(byte[] data)
{
var stream = new MemoryStream();
using (var writer = new FileWriter(stream))
{
writer.Write(data.Length);
byte[] buffer = LZ4.Frame.LZ4Frame.Compress(new MemoryStream(data), LZ4.Frame.LZ4MaxBlockSize.Auto, true, true, false, true, false);
writer.Write(buffer, 0, buffer.Length);
}
return stream.ToArray();
}
}
public class Type_LZ4
{
public static byte[] Decompress(byte[] data, int inputOffset, int InputLength, int decompressedSize)
{
return LZ4.LZ4Codec.Decode(data, inputOffset, InputLength, decompressedSize);
}
public static byte[] Decompress(byte[] data)
{
using (MemoryStream mem = new MemoryStream())
{
using (var source = LZ4Stream.Decode(new MemoryStream(data)))
{
source.CopyTo(mem);
mem.Write(data, 0, data.Length);
}
return mem.ToArray();
}
}
public static byte[] Compress(byte[] data, int inputOffset = 0)
{
return LZ4.LZ4Codec.Encode(data, inputOffset, data.Length);
}
}
}
public class FileExt
{
public static System.Drawing.Color[] ReadColors(int Count)
{
var colors = new System.Drawing.Color[Count];
for (int i = 0; i < Count; i ++)
{
colors[i] = new System.Drawing.Color();
}
return colors;
}
public static Vector2 ToVec2(Syroot.Maths.Vector2F v)
{
return new Vector2(v.X, v.Y);
}
public static Vector3 ToVec3(Syroot.Maths.Vector3F v)
{
return new Vector3(v.X, v.Y, v.Z);
}
public static Vector4 ToVec4(Syroot.Maths.Vector4F v)
{
return new Vector4(v.X, v.Y, v.Z, v.W);
}
public static Vector2 ToVec2(float[] v)
{
return new Vector2(v[0], v[1]);
}
public static Vector3 ToVec3(float[] v)
{
return new Vector3(v[0], v[1], v[2]);
}
public static Vector4 ToVec4(float[] v)
{
return new Vector4(v[0], v[1], v[2], v[3]);
}
public static string DataToString(Syroot.Maths.Vector2F v)
{
return $"{v.X},{v.Y}";
}
public static string DataToString(Syroot.Maths.Vector3F v)
{
return $"{v.X},{v.Y},{v.Z}";
}
public static string DataToString(Syroot.Maths.Vector4F v)
{
return $"{v.X},{v.Y},{v.Z} {v.W}";
}
}
}