perf: use UnsafeUtility for Unity<->System conversions

X10D.Unity/src/Drawing/PointExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -31,6 +32,6 @@ public static class PointExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Vector2Int ToUnityVector2Int(this Point value)
     {
-        return new Vector2Int(value.X, value.Y);
+        return UnsafeUtility.As<Point, Vector2Int>(ref value);
     }
 }

X10D.Unity/src/Drawing/PointFExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 using X10D.Drawing;
 using X10D.Unity.Numerics;
@@ -38,6 +39,6 @@ public static class PointFExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Vector2 ToUnityVector2(this PointF point)
     {
-        return new Vector2(point.X, point.Y);
+        return UnsafeUtility.As<PointF, Vector2>(ref point);
     }
 }

X10D.Unity/src/Drawing/RectExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -19,6 +20,6 @@ public static class RectExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static RectangleF ToSystemRectangleF(this Rect rectangle)
     {
-        return new RectangleF(rectangle.x, rectangle.y, rectangle.width, rectangle.height);
+        return UnsafeUtility.As<Rect, RectangleF>(ref rectangle);
     }
 }

X10D.Unity/src/Drawing/RectIntExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -19,7 +20,7 @@ public static class RectIntExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Rectangle ToSystemRectangle(this RectInt rectangle)
     {
-        return new Rectangle(rectangle.x, rectangle.y, rectangle.width, rectangle.height);
+        return UnsafeUtility.As<RectInt, Rectangle>(ref rectangle);
     }
 
     /// <summary>
@@ -31,6 +32,7 @@ public static class RectIntExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static RectangleF ToSystemRectangleF(this RectInt rectangle)
     {
-        return new RectangleF(rectangle.x, rectangle.y, rectangle.width, rectangle.height);
+        // REMARKS: implicit conversion already exists, this method is largely pointless
+        return rectangle.ToSystemRectangle();
     }
 }

X10D.Unity/src/Drawing/RectangleExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -31,6 +32,6 @@ public static class RectangleExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static RectInt ToUnityRectInt(this Rectangle rectangle)
     {
-        return new RectInt(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
+        return UnsafeUtility.As<Rectangle, RectInt>(ref rectangle);
     }
 }

X10D.Unity/src/Drawing/SizeExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -19,7 +20,8 @@ public static class SizeExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Vector2 ToUnityVector2(this Size size)
     {
-        return new Vector2(size.Width, size.Height);
+        // REMARKS: implicit conversion already exists, this method is largely pointless
+        return size.ToUnityVector2Int();
     }
 
     /// <summary>
@@ -31,6 +33,6 @@ public static class SizeExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Vector2Int ToUnityVector2Int(this Size size)
     {
-        return new Vector2Int(size.Width, size.Height);
+        return UnsafeUtility.As<Size, Vector2Int>(ref size);
     }
 }

X10D.Unity/src/Drawing/SizeFExtensions.cs

@@ -1,6 +1,7 @@
 using System.Diagnostics.Contracts;
 using System.Drawing;
 using System.Runtime.CompilerServices;
+using Unity.Collections.LowLevel.Unsafe;
 using UnityEngine;
 
 namespace X10D.Unity.Drawing;
@@ -19,6 +20,6 @@ public static class SizeFExtensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static Vector2 ToUnityVector2(this SizeF size)
     {
-        return new Vector2(size.Width, size.Height);
+        return UnsafeUtility.As<SizeF, Vector2>(ref size);
     }
 }

X10D.Unity/src/Numerics/Vector2Extensions.cs

@@ -112,7 +112,7 @@ public static class Vector2Extensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static PointF ToSystemPointF(this Vector2 vector)
     {
-        return new PointF(vector.x, vector.y);
+        return UnsafeUtility.As<Vector2, PointF>(ref vector);
     }
 
     /// <summary>
@@ -124,7 +124,7 @@ public static class Vector2Extensions
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     public static SizeF ToSystemSizeF(this Vector2 vector)
     {
-        return new SizeF(vector.x, vector.y);
+        return UnsafeUtility.As<Vector2, SizeF>(ref vector);
     }
 
     /// <summary>