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DataEncoderService.cs
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DataEncoderService.cs
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using AutomaticTypeMapper;
using System.Collections.Generic;
using System.Linq;
namespace EOLib.IO.Services
{
[AutoMappedType]
public class DataEncoderService : IDataEncoderService
{
public List<byte> Interleave(IReadOnlyList<byte> data)
{
var numArray = new byte[data.Count];
var index1 = 0;
var num = 0;
while (index1 < data.Count)
{
numArray[index1] = data[num++];
index1 += 2;
}
var index2 = index1 - 1;
if (data.Count % 2 != 0)
index2 -= 2;
while (index2 >= 0)
{
numArray[index2] = data[num++];
index2 -= 2;
}
return numArray.ToList();
}
public List<byte> Deinterleave(IReadOnlyList<byte> data)
{
var numArray = new byte[data.Count];
var index1 = 0;
var num = 0;
while (index1 < data.Count)
{
numArray[num++] = data[index1];
index1 += 2;
}
var index2 = index1 - 1;
if (data.Count % 2 != 0)
index2 -= 2;
while (index2 >= 0)
{
numArray[num++] = data[index2];
index2 -= 2;
}
return numArray.ToList();
}
public List<byte> FlipMSB(IReadOnlyList<byte> data)
{
return data.Select(x => (byte)(x ^ 0x80u)).ToList();
}
public List<byte> SwapMultiples(IReadOnlyList<byte> data, int multi)
{
int num1 = 0;
var result = data.ToArray();
for (int index1 = 0; index1 <= data.Count; ++index1)
{
if (index1 != data.Count && data[index1] % multi == 0)
{
++num1;
}
else
{
if (num1 > 1)
{
for (int index2 = 0; index2 < num1 / 2; ++index2)
{
byte num2 = data[index1 - num1 + index2];
result[index1 - num1 + index2] = data[index1 - index2 - 1];
result[index1 - index2 - 1] = num2;
}
}
num1 = 0;
}
}
return result.ToList();
}
}
public interface IDataEncoderService
{
List<byte> Interleave(IReadOnlyList<byte> data);
List<byte> Deinterleave(IReadOnlyList<byte> data);
List<byte> FlipMSB(IReadOnlyList<byte> data);
List<byte> SwapMultiples(IReadOnlyList<byte> data, int multi);
}
}