presentation API update

lib/MoonWorks

@@ -1 +1 @@
-Subproject commit 7328cbc13dc0e1f156689aeeae2fd5ae4be24084
+Subproject commit ef10be4e9db616e345c995ed04de6b92ba5d1d06

src/TestGame.cs

@@ -10,8 +10,6 @@ namespace MoonWorksComputeSpriteBatch
 {
 	public class TestGame : Game
 	{
-		private RenderTarget mainColorTarget;
-
 		private GraphicsPipeline spritePipeline;
 
 		private SpriteBatch spriteBatch;
@@ -35,14 +33,6 @@ namespace MoonWorksComputeSpriteBatch
 			var vertexShaderModule = new ShaderModule(GraphicsDevice, Path.Combine(Environment.CurrentDirectory, "Content", "sprite.vert.spv"));
 			var fragmentShaderModule = new ShaderModule(GraphicsDevice, Path.Combine(Environment.CurrentDirectory, "Content", "sprite.frag.spv"));
 
-			mainColorTarget = RenderTarget.CreateBackedRenderTarget(
-				GraphicsDevice,
-				windowWidth,
-				windowHeight,
-				TextureFormat.R8G8B8A8,
-				false
-			);
-
 			/* Pipeline */
 
 			ColorBlendState colorBlendState = new ColorBlendState
@@ -121,7 +111,7 @@ namespace MoonWorksComputeSpriteBatch
 			{
 				new ColorAttachmentDescription
 				{
-					Format = TextureFormat.R8G8B8A8,
+					Format = GraphicsDevice.GetSwapchainFormat(Window),
 					SampleCount = SampleCount.One,
 					BlendState = ColorAttachmentBlendState.None
 				}
@@ -174,6 +164,7 @@ namespace MoonWorksComputeSpriteBatch
 		protected override void Draw(TimeSpan dt, double alpha)
 		{
 			var commandBuffer = GraphicsDevice.AcquireCommandBuffer();
+			var swapchainTexture = commandBuffer.AcquireSwapchainTexture(Window);
 
 			var viewProjection = Matrix4x4.CreateLookAt(new Vector3(windowWidth / 2, windowHeight / 2, 1), new Vector3(windowWidth / 2, windowHeight / 2, 0), Vector3.Up) * Matrix4x4.CreateOrthographic(windowWidth, windowHeight, 0.1f, 1000);
 			spriteBatch.Start(whitePixel, sampler);
@@ -185,17 +176,12 @@ namespace MoonWorksComputeSpriteBatch
 				spriteBatch.Add(new Sprite(new Rect { X = 0, Y = 0, W = 0, H = 0 }, 128, 128), transform, color);
 			}
 
-			var colorAttachmentInfo = new ColorAttachmentInfo
-			{
-				RenderTarget = mainColorTarget,
-				ClearColor = Color.Black,
-				LoadOp = LoadOp.Clear,
-				StoreOp = StoreOp.DontCare
-			};
-
-			spriteBatch.Flush(commandBuffer, colorAttachmentInfo, spritePipeline, new CameraUniforms { viewProjectionMatrix = viewProjection });
-
-			commandBuffer.QueuePresent(mainColorTarget.TextureSlice, Filter.Nearest, Window);
+			spriteBatch.Flush(
+				commandBuffer,
+				new ColorAttachmentInfo(swapchainTexture, Color.Black),
+				spritePipeline,
+				new CameraUniforms { viewProjectionMatrix = viewProjection }
+			);
 			GraphicsDevice.Submit(commandBuffer);
 		}