Improve code around EDF files.

EOLib.IO/Services/DataEncoderService.cs

@@ -0,0 +1,106 @@
+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);
+    }
+}

EOLib.Localization.Test/DataFileLoadActionsTest.cs

@@ -1,5 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
+using EOLib.IO.Services;
 using NUnit.Framework;
 
 namespace EOLib.Localization.Test
@@ -9,12 +10,14 @@ public class DataFileLoadActionsTest
     {
         private IDataFileLoadActions _actions;
         private IDataFileRepository _dataFileRepository;
+        private IEDFLoaderService _edfLoaderService;
 
         [SetUp]
         public void SetUp()
         {
             _dataFileRepository = new DataFileRepository();
-            _actions = new DataFileLoadActions(_dataFileRepository);
+            _edfLoaderService = new EDFLoaderService(new DataEncoderService());
+            _actions = new DataFileLoadActions(_dataFileRepository, _edfLoaderService);
         }
 
         [TearDown]
@@ -53,7 +56,7 @@ public void WhenLoadDataFiles_RepositoryHasExpectedNumberOfFiles()
         {
             CreateRequiredDirectory();
             GivenEDFFilesInRequiredDirectory();
-            _dataFileRepository.DataFiles.Add(DataFiles.Credits, new EDFFile("data/dat001.edf", DataFiles.Credits));
+            _dataFileRepository.DataFiles.Add(DataFiles.Credits, new EDFFile(DataFiles.Credits));
 
             _actions.LoadDataFiles();