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Not Officer
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‎src/Oodle.NET.Tests/Oodle.NET.Tests.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net5.0</TargetFramework>
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<IsPackable>false</IsPackable>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
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<PackageReference Include="xunit" Version="2.4.1" />
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<PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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<PackageReference Include="coverlet.collector" Version="3.0.3">
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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<PrivateAssets>all</PrivateAssets>
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</PackageReference>
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\Oodle.NET\Oodle.NET.csproj" />
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</ItemGroup>
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</Project>

‎src/Oodle.NET.Tests/OodleCompressorTests.cs‎

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using System;
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using System.Text;
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using Xunit;
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namespace Oodle.NET.Tests
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{
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public class OodleCompressorTests
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{
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private readonly OodleCompressor _oodle;
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public OodleCompressorTests()
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{
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_oodle = new OodleCompressor(@"C:\Games\Fortnite\FortniteGame\Binaries\Win64\oo2core_5_win64.dll");
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}
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[Fact]
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public unsafe void CompressAndDecompress()
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{
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const OodleLZ_Compressor compressor = OodleLZ_Compressor.Kraken;
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var encoding = new ASCIIEncoding();
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var randomString = GetRandomString(0xFFF);
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var randomStringBuffer = encoding.GetBytes(randomString);
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//var memorySizeNeeded = OodleCompressor.GetCompressionBound((uint)randomStringBuffer.Length);
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var memorySizeNeeded = _oodle.MemorySizeNeeded(compressor, randomStringBuffer.Length);
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Assert.NotEqual(0L, memorySizeNeeded);
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var compressedBuffer = new byte[memorySizeNeeded];
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var compressedCount = _oodle.Compress(compressor, randomStringBuffer, randomStringBuffer.Length, compressedBuffer, OodleLZ_CompressionLevel.Normal, 0L, 0L, 0L, 0L, 0L);
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Assert.NotEqual(0L, compressedCount);
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var decompressedBuffer = new byte[randomStringBuffer.Length];
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var decompressedCount = _oodle.Decompress(compressedBuffer, compressedCount, decompressedBuffer, decompressedBuffer.Length, OodleLZ_FuzzSafe.No, OodleLZ_CheckCRC.No, OodleLZ_Verbosity.None, 0L, 0L, 0L, 0L, 0L, 0L, OodleLZ_Decode_ThreadPhase.Unthreaded);
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Assert.NotEqual(0L, decompressedCount);
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var decompressedRandomString = encoding.GetString(decompressedBuffer);
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Assert.Equal((int)decompressedCount, randomStringBuffer.Length);
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Assert.Equal(randomString, decompressedRandomString);
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}
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private static string GetRandomString(int length)
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{
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const string chars = "0123456789ABCDEF";
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var stringChars = new char[length];
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var random = new Random();
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for (var i = 0; i < stringChars.Length; i++)
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{
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stringChars[i] = chars[random.Next(chars.Length)];
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}
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return new string(stringChars);
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}
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}
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}

‎src/Oodle.NET.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.31112.23
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Oodle.NET", "Oodle.NET\Oodle.NET.csproj", "{AFF75C15-8DFA-454A-B24B-09F19BE68559}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Oodle.NET.Tests", "Oodle.NET.Tests\Oodle.NET.Tests.csproj", "{0482F51C-6992-49AD-90AC-A4689FA32C52}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{AFF75C15-8DFA-454A-B24B-09F19BE68559}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{AFF75C15-8DFA-454A-B24B-09F19BE68559}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{AFF75C15-8DFA-454A-B24B-09F19BE68559}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{AFF75C15-8DFA-454A-B24B-09F19BE68559}.Release|Any CPU.Build.0 = Release|Any CPU
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{0482F51C-6992-49AD-90AC-A4689FA32C52}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{0482F51C-6992-49AD-90AC-A4689FA32C52}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{0482F51C-6992-49AD-90AC-A4689FA32C52}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{0482F51C-6992-49AD-90AC-A4689FA32C52}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {A3254214-0CAC-436D-8F0B-0E5A89201113}
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EndGlobalSection
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EndGlobal

‎src/Oodle.NET/Oodle.NET.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFrameworks>net5.0;netcoreapp3.1</TargetFrameworks>
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<PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
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<Authors>NotOfficer</Authors>
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<Description>A .NET wrapper for Oodle</Description>
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<Company>NotOfficer</Company>
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<Copyright>Copyright (c) 2021 NotOfficer</Copyright>
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<PackageLicenseFile>LICENSE</PackageLicenseFile>
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<PackageProjectUrl>https://github.com/NotOfficer/Oodle.NET</PackageProjectUrl>
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<RepositoryUrl>https://github.com/NotOfficer/Oodle.NET</RepositoryUrl>
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<RepositoryType>git</RepositoryType>
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<PackageIcon>icon.png</PackageIcon>
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<PackageTags>oodle, decompress, compress</PackageTags>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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<PlatformTarget>x64</PlatformTarget>
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</PropertyGroup>
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<ItemGroup>
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<None Include="..\..\icon.png">
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<Pack>True</Pack>
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<PackagePath></PackagePath>
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</None>
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<None Include="..\..\LICENSE">
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<Pack>True</Pack>
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<PackagePath></PackagePath>
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</None>
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</ItemGroup>
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</Project>

‎src/Oodle.NET/OodleCompressor.cs‎

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using System;
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using System.Reflection;
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using System.Runtime.InteropServices;
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namespace Oodle.NET
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{
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#if NET5_0_OR_GREATER
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public unsafe class OodleCompressor : IDisposable
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#else
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public class OodleCompressor : IDisposable
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#endif
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{
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private readonly IntPtr _handle;
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#if NET5_0_OR_GREATER
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public readonly delegate* unmanaged[Cdecl]<OodleLZ_Compressor, byte[], long, byte[], OodleLZ_CompressionLevel, long, long, long, long, long, long> Compress;
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public readonly delegate* unmanaged[Cdecl]<byte[], long, byte[], long, OodleLZ_FuzzSafe, OodleLZ_CheckCRC, OodleLZ_Verbosity, long, long, long, long, long, long, OodleLZ_Decode_ThreadPhase, long> Decompress;
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public readonly delegate* unmanaged[Cdecl]<OodleLZ_Compressor, long, long> MemorySizeNeeded;
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#else
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public delegate long OodleLZ_Compress(OodleLZ_Compressor compressor, byte[] src, long src_size, byte[] dst, OodleLZ_CompressionLevel level, long opts, long context, long unused, long scratch, long scratch_size);
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public readonly OodleLZ_Compress Compress;
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public delegate long OodleLZ_Decompress(byte[] src, long src_size, byte[] dst, long dst_size, OodleLZ_FuzzSafe fuzz, OodleLZ_CheckCRC crc, OodleLZ_Verbosity verbosity, long context, long e, long callback, long callback_ctx, long scratch, long scratch_size, OodleLZ_Decode_ThreadPhase thread_phase);
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public readonly OodleLZ_Decompress Decompress;
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public delegate long OodleLZDecoder_MemorySizeNeeded(OodleLZ_Compressor compressor, long size);
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public readonly OodleLZDecoder_MemorySizeNeeded MemorySizeNeeded;
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#endif
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public OodleCompressor(string libraryPath, Assembly assembly, DllImportSearchPath? searchPath = null) : this(NativeLibrary.Load(libraryPath, assembly, searchPath)) { }
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public OodleCompressor(string libraryPath) : this(NativeLibrary.Load(libraryPath)) { }
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public OodleCompressor(IntPtr handle)
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{
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if (handle == IntPtr.Zero)
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{
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throw new ArgumentOutOfRangeException(nameof(handle), $"Failed to initialize {nameof(OodleCompressor)}");
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}
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_handle = handle;
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var compressAddress = NativeLibrary.GetExport(_handle, "OodleLZ_Compress");
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var decompressAddress = NativeLibrary.GetExport(_handle, "OodleLZ_Decompress");
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var memorySizeNeededAddress = NativeLibrary.GetExport(_handle, "OodleLZDecoder_MemorySizeNeeded");
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#if NET5_0_OR_GREATER
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Compress = (delegate* unmanaged[Cdecl]<OodleLZ_Compressor, byte[], long, byte[], OodleLZ_CompressionLevel, long, long, long, long, long, long>)compressAddress;
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Decompress = (delegate* unmanaged[Cdecl]<byte[], long, byte[], long, OodleLZ_FuzzSafe, OodleLZ_CheckCRC, OodleLZ_Verbosity, long, long, long, long, long, long, OodleLZ_Decode_ThreadPhase, long>)decompressAddress;
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MemorySizeNeeded = (delegate* unmanaged[Cdecl]<OodleLZ_Compressor, long, long>)memorySizeNeededAddress;
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#else
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Compress = Marshal.GetDelegateForFunctionPointer<OodleLZ_Compress>(compressAddress);
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Decompress = Marshal.GetDelegateForFunctionPointer<OodleLZ_Decompress>(decompressAddress);
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MemorySizeNeeded = Marshal.GetDelegateForFunctionPointer<OodleLZDecoder_MemorySizeNeeded>(memorySizeNeededAddress);
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#endif
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}
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public static uint GetCompressionBound(uint bufferSize)
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{
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return bufferSize + 274 * ((bufferSize + 0x3FFFF) / 0x40000);
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}
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protected virtual void Dispose(bool disposing)
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{
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if (!disposing)
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{
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return;
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}
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if (_handle != IntPtr.Zero)
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{
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NativeLibrary.Free(_handle);
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}
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}
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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}
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public enum OodleLZ_FuzzSafe
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{
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No,
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Yes
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}
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public enum OodleLZ_CheckCRC
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{
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No,
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Yes
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}
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public enum OodleLZ_Verbosity
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{
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None,
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Max = 3
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}
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public enum OodleLZ_Decode_ThreadPhase
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{
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ThreadPhase1 = 0x1,
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ThreadPhase2 = 0x2,
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Unthreaded = ThreadPhase1 | ThreadPhase2
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}
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}

‎src/Oodle.NET/OodleLZ_CompressionLevel.cs‎

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namespace Oodle.NET
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{
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public enum OodleLZ_CompressionLevel
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{
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HyperFast4 = -4,
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HyperFast3,
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HyperFast2,
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HyperFast1,
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None,
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SuperFast,
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VeryFast,
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Fast,
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Normal,
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Optimal1,
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Optimal2,
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Optimal3,
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Optimal4,
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Optimal5,
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// TooHigh,
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Min = HyperFast4,
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Max = Optimal5
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}
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}

‎src/Oodle.NET/OodleLZ_Compressor.cs‎

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namespace Oodle.NET
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{
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public enum OodleLZ_Compressor
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{
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Invalid = -1,
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LZH,
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LZHLW,
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LZNIB,
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None,
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LZB16,
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LZBLW,
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LZA,
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LZNA,
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Kraken,
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Mermaid,
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BitKnit,
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Selkie,
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Hydra,
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Leviathan
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}
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}

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