RDNA3 Vulkan project

src/Ryujinx.Graphics.Rdna3Vulkan/NativeArray.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Rdna3Vulkan
+{
+    unsafe class NativeArray<T> : IDisposable where T : unmanaged
+    {
+        public T* Pointer { get; private set; }
+        public int Length { get; }
+
+        public ref T this[int index]
+        {
+            get => ref Pointer[Checked(index)];
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        private int Checked(int index)
+        {
+            if ((uint)index >= (uint)Length)
+            {
+                throw new IndexOutOfRangeException();
+            }
+
+            return index;
+        }
+
+        public NativeArray(int length)
+        {
+            Pointer = (T*)Marshal.AllocHGlobal(checked(length * Unsafe.SizeOf<T>()));
+            Length = length;
+        }
+
+        public Span<T> AsSpan()
+        {
+            return new Span<T>(Pointer, Length);
+        }
+
+        public void Dispose()
+        {
+            if (Pointer != null)
+            {
+                Marshal.FreeHGlobal((nint)Pointer);
+                Pointer = null;
+            }
+        }
+    }
+}