From 6b8b1515c2391dab083a6d382a862c8922cead5e Mon Sep 17 00:00:00 2001
From: Alex Barney <thealexbarney@gmail.com>
Date: Fri, 1 Jan 2021 17:01:36 -0700
Subject: [PATCH] Compress result name data

---
 build/Build.cs                        | 16 ++++++++++++++++
 build/CodeGen/Stage1/ResultCodegen.cs |  3 ++-
 src/LibHac/ResultNameResolver.cs      | 11 ++++++++++-
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/build/Build.cs b/build/Build.cs
index ce740c4e..f5f3e5cd 100644
--- a/build/Build.cs
+++ b/build/Build.cs
@@ -7,6 +7,7 @@ using System.Security.Cryptography;
 using System.Text;
 using System.Text.RegularExpressions;
 using ICSharpCode.SharpZipLib.Zip;
+using ICSharpCode.SharpZipLib.Zip.Compression;
 using LibHacBuild.CodeGen.Stage1;
 using Nuke.Common;
 using Nuke.Common.CI.AppVeyor;
@@ -514,6 +515,21 @@ namespace LibHacBuild
             }
         }
 
+        public static byte[] DeflateBytes(byte[] data)
+        {
+            var s = new Deflater(9, true);
+            s.SetInput(data);
+            s.Finish();
+            byte[] buffer = new byte[data.Length];
+            s.Deflate(buffer);
+
+            Debug.Assert(s.IsFinished);
+
+            byte[] compressed = new byte[s.TotalOut];
+            Array.Copy(buffer, compressed, compressed.Length);
+            return compressed;
+        }
+
         public static void PushArtifact(string path)
         {
             if (!File.Exists(path))
diff --git a/build/CodeGen/Stage1/ResultCodegen.cs b/build/CodeGen/Stage1/ResultCodegen.cs
index 936f42c7..2971a0b9 100644
--- a/build/CodeGen/Stage1/ResultCodegen.cs
+++ b/build/CodeGen/Stage1/ResultCodegen.cs
@@ -36,7 +36,8 @@ namespace LibHacBuild.CodeGen.Stage1
             }
 
             byte[] archive = BuildArchive(modules);
-            string archiveStr = PrintArchive(archive);
+            byte[] compressedArchive = Build.DeflateBytes(archive);
+            string archiveStr = PrintArchive(compressedArchive);
             WriteOutput("LibHac/ResultNameResolver.Generated.cs", archiveStr);
         }
 
diff --git a/src/LibHac/ResultNameResolver.cs b/src/LibHac/ResultNameResolver.cs
index 2aee430e..545a9622 100644
--- a/src/LibHac/ResultNameResolver.cs
+++ b/src/LibHac/ResultNameResolver.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.IO.Compression;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using LibHac.Common;
@@ -19,10 +20,18 @@ namespace LibHac
 
         private static Dictionary<Result, string> GetResultNames()
         {
-            var archiveReader = new ResultArchiveReader(ArchiveData);
+            var archiveReader = new ResultArchiveReader(DecompressArchive());
             return archiveReader.GetDictionary();
         }
 
+        private static byte[] DecompressArchive()
+        {
+            var deflateStream = new DeflateStream(new MemoryStream(ArchiveData.ToArray()), CompressionMode.Decompress);
+            var archiveDataStream = new MemoryStream();
+            deflateStream.CopyTo(archiveDataStream);
+            return archiveDataStream.ToArray();
+        }
+
         // To save a bunch of space in the assembly, Results with their names are packed into
         // an archive and unpacked at runtime.
         private readonly ref struct ResultArchiveReader