backed color target convenience method

src/ColorTarget.cs

@@ -13,6 +13,34 @@ namespace Campari
 
         protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyColorTarget;
 
+        public static ColorTarget CreateBackedColorTarget2D(
+            GraphicsDevice device,
+            uint width,
+            uint height,
+            Refresh.ColorFormat format,
+            bool canBeSampled,
+            Refresh.SampleCount sampleCount = Refresh.SampleCount.One,
+            uint levelCount = 1
+        )
+        {
+            var flags = Refresh.TextureUsageFlags.ColorTargetBit;
+            if (canBeSampled) { flags |= Refresh.TextureUsageFlags.SamplerBit; }
+
+            var texture = Texture.CreateTexture2D(
+                device,
+                width,
+                height,
+                format,
+                flags,
+                sampleCount,
+                levelCount
+            );
+
+            var textureSlice = new TextureSlice(texture);
+
+            return new ColorTarget(device, sampleCount, ref textureSlice);
+        }
+
         public ColorTarget(GraphicsDevice device, Refresh.SampleCount sampleCount, ref TextureSlice textureSlice) : base(device)
         {
             var refreshTextureSlice = textureSlice.ToRefreshTextureSlice();

src/DepthStencilTarget.cs

@@ -11,7 +11,12 @@ namespace Campari
 
         protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyDepthStencilTarget;
 
-        public DepthStencilTarget(GraphicsDevice device, uint width, uint height, Refresh.DepthFormat depthFormat) : base(device)
+        public DepthStencilTarget(
+            GraphicsDevice device,
+            uint width,
+            uint height,
+            Refresh.DepthFormat depthFormat
+        ) : base(device)
         {
             Handle = Refresh.Refresh_CreateDepthStencilTarget(device.Handle, width, height, depthFormat);
             Width = width;