Use native version for LZFSE.

Aaru.Compression/Aaru.Compression.csproj

@@ -73,6 +73,7 @@
     <Compile Include="ADC.cs" />
     <Compile Include="AppleRle.cs" />
     <Compile Include="BZip2.cs" />
+    <Compile Include="LZFSE.cs" />
     <Compile Include="Native.cs" />
     <Compile Include="TeleDiskLzh.cs" />
     <Compile Include="cuetools.net/CUETools.Codecs/*.cs" />

Aaru.Compression/LZFSE.cs

@@ -0,0 +1,62 @@
+// /***************************************************************************
+// Aaru Data Preservation Suite
+// ----------------------------------------------------------------------------
+//
+// Filename       : LZFSE.cs
+// Author(s)      : Natalia Portillo <claunia@claunia.com>
+//
+// Component      : Compression algorithms.
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This library is free software; you can redistribute it and/or modify
+//     it under the terms of the GNU Lesser General Public License as
+//     published by the Free Software Foundation; either version 2.1 of the
+//     License, or (at your option) any later version.
+//
+//     This library is distributed in the hope that it will be useful, but
+//     WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+//     Lesser General Public License for more details.
+//
+//     You should have received a copy of the GNU Lesser General Public
+//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright © 2011-2021 Natalia Portillo
+// ****************************************************************************/
+
+using System.Runtime.InteropServices;
+
+namespace Aaru.Compression;
+
+public class LZFSE
+{
+    [DllImport("libAaru.Compression.Native", SetLastError = true)]
+    static extern nuint AARU_lzfse_decode_buffer(byte[] dst_buffer, nuint dst_size, byte[] src_buffer, nuint src_size,
+                                                 byte[] scratch_buffer);
+
+    [DllImport("libAaru.Compression.Native", SetLastError = true)]
+    static extern nuint AARU_lzfse_encode_buffer(byte[] dst_buffer, nuint dst_size, byte[] src_buffer, nuint src_size,
+                                                 byte[] scratch_buffer);
+
+    /// <summary>Decodes a buffer compressed with LZFSE</summary>
+    /// <param name="source">Encoded buffer</param>
+    /// <param name="destination">Buffer where to write the decoded data</param>
+    /// <returns>The number of decoded bytes</returns>
+    public static int DecodeBuffer(byte[] source, byte[] destination) => Native.IsSupported
+                                                                             ? (int)
+                                                                             AARU_lzfse_decode_buffer(destination,
+                                                                                 (nuint)destination.Length, source,
+                                                                                 (nuint)source.Length, null) : 0;
+
+    /// <summary>Compresses a buffer using BZIP2</summary>
+    /// <param name="source">Data to compress</param>
+    /// <param name="destination">Buffer to store the compressed data</param>
+    /// <returns></returns>
+    public static int EncodeBuffer(byte[] source, byte[] destination) => Native.IsSupported
+                                                                             ? (int)
+                                                                             AARU_lzfse_encode_buffer(destination,
+                                                                                 (nuint)destination.Length, source,
+                                                                                 (nuint)source.Length, null) : 0;
+}