From 67131caef3bc1c51b25f81de4b77b65af512e3fe Mon Sep 17 00:00:00 2001
From: jduncanator <jduncanator@hotmail.com>
Date: Thu, 6 Sep 2018 11:25:26 +1000
Subject: [PATCH] Audio: Use built-in Unsafe.SizeOf<T>()

Built-in `SizeOf<T>()` is 10x faster than our `TypeSize<T>` helper. This also helps reduce code surface area.
---
 Ryujinx.Audio/Helpers/TypeSize.cs             | 27 -------------------
 .../Renderers/SoundIo/SoundIoAudioTrack.cs    |  2 +-
 2 files changed, 1 insertion(+), 28 deletions(-)
 delete mode 100644 Ryujinx.Audio/Helpers/TypeSize.cs

diff --git a/Ryujinx.Audio/Helpers/TypeSize.cs b/Ryujinx.Audio/Helpers/TypeSize.cs
deleted file mode 100644
index 5f041fb865..0000000000
--- a/Ryujinx.Audio/Helpers/TypeSize.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-using System;
-using System.Reflection.Emit;
-
-namespace Ryujinx.Audio
-{
-    /// <summary>
-    /// Helper to determine the byte size of type <see cref="T"/>
-    /// </summary>
-    public static class TypeSize<T>
-    {
-        /// <summary>
-        /// The byte size of type <see cref="T"/>
-        /// </summary>
-        public readonly static int Size;
-
-        static TypeSize()
-        {
-            var dm = new DynamicMethod("", typeof(int), Type.EmptyTypes);
-            var il = dm.GetILGenerator();
-
-            il.Emit(OpCodes.Sizeof, typeof(T));
-            il.Emit(OpCodes.Ret);
-
-            Size = (int)dm.Invoke(null, null);
-        }
-    }
-}
diff --git a/Ryujinx.Audio/Renderers/SoundIo/SoundIoAudioTrack.cs b/Ryujinx.Audio/Renderers/SoundIo/SoundIoAudioTrack.cs
index 61e918f661..de354a7b23 100644
--- a/Ryujinx.Audio/Renderers/SoundIo/SoundIoAudioTrack.cs
+++ b/Ryujinx.Audio/Renderers/SoundIo/SoundIoAudioTrack.cs
@@ -495,7 +495,7 @@ namespace Ryujinx.Audio.SoundIo
                 return;
 
             // Calculate the size of the audio samples
-            var size = TypeSize<T>.Size;
+            var size = Unsafe.SizeOf<T>();
 
             // Calculate the amount of bytes to copy from the buffer
             var bytesToCopy = size * buffer.Length;