From 4c2f1a1a88061889653a3a1dcc45f782a3375cc0 Mon Sep 17 00:00:00 2001
From: Christian Luksch <luksch@vrvis.at>
Date: Mon, 13 May 2024 18:20:28 +0200
Subject: [PATCH] [IO] replaced Marshal.SizeOf with Unsafe.SizeOf

---
 src/Aardvark.Base.IO/StreamCodeReader.cs | 10 +++++-----
 src/Aardvark.Base.IO/StreamCodeWriter.cs | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/Aardvark.Base.IO/StreamCodeReader.cs b/src/Aardvark.Base.IO/StreamCodeReader.cs
index 79e62821..ce07af4a 100644
--- a/src/Aardvark.Base.IO/StreamCodeReader.cs
+++ b/src/Aardvark.Base.IO/StreamCodeReader.cs
@@ -145,7 +145,7 @@ public long ReadArray<T>(T[] array, long index, long count)
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
                 var hack = new ByteArrayUnion();
                 hack.structs = array;
 
@@ -181,7 +181,7 @@ public long ReadArray<T>(T[,] array, long count)
             if (count < 1) return 0;
 
 #if NET6_0_OR_GREATER
-            var sizeOfT = Marshal.SizeOf(typeof(T));
+            var sizeOfT = Unsafe.SizeOf<T>();
             var span = MemoryMarshal.CreateSpan(ref MemoryMarshal.GetArrayDataReference(array), (int)count * sizeOfT);
 
             var bytesToRead = span.Length;
@@ -200,7 +200,7 @@ public long ReadArray<T>(T[,] array, long count)
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
                 var hack = new ByteArrayUnion();
                 hack.structs = array;
 
@@ -238,7 +238,7 @@ public long ReadArray<T>(T[, ,] array, long count)
         {
             if (count < 1) return 0;
 #if NET6_0_OR_GREATER
-            var sizeOfT = Marshal.SizeOf(typeof(T));
+            var sizeOfT = Unsafe.SizeOf<T>();
             var span = MemoryMarshal.CreateSpan(ref MemoryMarshal.GetArrayDataReference(array), (int)count * sizeOfT);
 
             var bytesToRead = span.Length;
@@ -257,7 +257,7 @@ public long ReadArray<T>(T[, ,] array, long count)
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
                 var hack = new ByteArrayUnion();
                 hack.structs = array;
 
diff --git a/src/Aardvark.Base.IO/StreamCodeWriter.cs b/src/Aardvark.Base.IO/StreamCodeWriter.cs
index f4d07215..6a765d9a 100644
--- a/src/Aardvark.Base.IO/StreamCodeWriter.cs
+++ b/src/Aardvark.Base.IO/StreamCodeWriter.cs
@@ -132,7 +132,7 @@ public void WriteArray<T>(T[] array, long index, long count)
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
 
                 var hack = new ByteArrayUnion();
                 hack.structs = array;
@@ -167,13 +167,13 @@ public void WriteArray<T>(T[,] array, long count)
         {
             if (count < 1) return;
 #if NET6_0_OR_GREATER
-            var sizeOfT = Marshal.SizeOf(typeof(T));
+            var sizeOfT = Unsafe.SizeOf<T>();
             var byteSpan = MemoryMarshal.CreateSpan(ref MemoryMarshal.GetArrayDataReference(array), (int)count * sizeOfT);
             base.Write(byteSpan);
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
 
                 var hack = new ByteArrayUnion();
                 hack.structs = array;
@@ -208,13 +208,13 @@ public void WriteArray<T>(T[, ,] array, long count)
         {
             if (count < 1) return;
 #if NET6_0_OR_GREATER
-            var sizeOfT = Marshal.SizeOf(typeof(T));
+            var sizeOfT = Unsafe.SizeOf<T>();
             var byteSpan = MemoryMarshal.CreateSpan(ref MemoryMarshal.GetArrayDataReference(array), (int)count * sizeOfT);
             base.Write(byteSpan);
 #else
             unsafe
             {
-                var sizeOfT = Marshal.SizeOf(typeof(T));
+                var sizeOfT = Unsafe.SizeOf<T>();
 
                 var hack = new ByteArrayUnion();
                 hack.structs = array;