DrawIndirectExample

Examples/DrawIndirectExample.cs

@@ -0,0 +1,105 @@
+using MoonWorks;
+using MoonWorks.Graphics;
+using MoonWorks.Input;
+using MoonWorks.Math.Float;
+using System.Runtime.InteropServices;
+
+namespace MoonWorksGraphicsTests;
+
+class DrawIndirectExample : Example
+{
+	private GraphicsPipeline GraphicsPipeline;
+	private GpuBuffer VertexBuffer;
+	private GpuBuffer DrawBuffer;
+
+    public override void Init(Window window, GraphicsDevice graphicsDevice, Inputs inputs)
+    {
+		Window = window;
+		GraphicsDevice = graphicsDevice;
+
+		Window.SetTitle("DrawIndirect");
+
+		// Load the shaders
+		Shader vertShader = new Shader(
+			GraphicsDevice,
+			TestUtils.GetShaderPath("PositionColor.vert"),
+			"main",
+			ShaderStage.Vertex,
+			ShaderFormat.SPIRV
+		);
+
+		Shader fragShader = new Shader(
+			GraphicsDevice,
+			TestUtils.GetShaderPath("SolidColor.frag"),
+			"main",
+			ShaderStage.Fragment,
+			ShaderFormat.SPIRV
+		);
+
+		// Create the graphics pipeline
+		GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
+			Window.SwapchainFormat,
+			vertShader,
+			fragShader
+		);
+		pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionColorVertex>();
+		GraphicsPipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
+
+		// Create and populate the vertex buffer
+		var resourceUploader = new ResourceUploader(GraphicsDevice);
+
+		VertexBuffer = resourceUploader.CreateBuffer(
+			[
+				new PositionColorVertex(new Vector3(-0.5f,  1, 0), Color.Blue),
+				new PositionColorVertex(new Vector3(  -1f, -1, 0), Color.Green),
+				new PositionColorVertex(new Vector3(   0f, -1, 0), Color.Red),
+
+				new PositionColorVertex(new Vector3(0.5f,  1, 0), Color.Blue),
+				new PositionColorVertex(new Vector3(  1f, -1, 0), Color.Green),
+				new PositionColorVertex(new Vector3(  0f, -1, 0), Color.Red),
+			],
+			BufferUsageFlags.Vertex
+		);
+
+		DrawBuffer = resourceUploader.CreateBuffer(
+			[
+				new IndirectDrawCommand(3, 1, 3, 0),
+				new IndirectDrawCommand(3, 1, 0, 0),
+			],
+			BufferUsageFlags.Indirect
+		);
+
+		resourceUploader.Upload();
+		resourceUploader.Dispose();
+	}
+
+	public override void Update(System.TimeSpan delta) { }
+
+	public override void Draw(double alpha)
+	{
+		CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
+		Texture swapchainTexture = cmdbuf.AcquireSwapchainTexture(Window);
+		if (swapchainTexture != null)
+		{
+			var renderPass = cmdbuf.BeginRenderPass(
+				new ColorAttachmentInfo(
+					swapchainTexture,
+					false,
+					Color.Black
+				)
+			);
+			renderPass.BindGraphicsPipeline(GraphicsPipeline);
+			renderPass.BindVertexBuffer(VertexBuffer);
+			renderPass.DrawPrimitivesIndirect(DrawBuffer, 0, 2, (uint) Marshal.SizeOf<IndirectDrawCommand>());
+			cmdbuf.EndRenderPass(renderPass);
+		}
+		GraphicsDevice.Submit(cmdbuf);
+	}
+
+    public override void Destroy()
+    {
+        GraphicsPipeline.Dispose();
+		VertexBuffer.Dispose();
+		DrawBuffer.Dispose();
+    }
+}

Examples/DrawIndirectGame.cs

@@ -1,79 +0,0 @@
-using MoonWorks.Graphics;
-using MoonWorks.Math.Float;
-using System.Runtime.InteropServices;
-
-namespace MoonWorks.Test
-{
-	class DrawIndirectGame : Game
-	{
-		private GraphicsPipeline graphicsPipeline;
-		private GpuBuffer vertexBuffer;
-		private GpuBuffer drawBuffer;
-
-		public DrawIndirectGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), TestUtils.PreferredBackends, 60, true)
-		{
-			// Load the shaders
-			ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("PositionColor.vert"));
-			ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("SolidColor.frag"));
-
-			// Create the graphics pipeline
-			GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
-				MainWindow.SwapchainFormat,
-				vertShaderModule,
-				fragShaderModule
-			);
-			pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionColorVertex>();
-			graphicsPipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
-
-			// Create and populate the vertex buffer
-			var resourceUploader = new ResourceUploader(GraphicsDevice);
-
-			vertexBuffer = resourceUploader.CreateBuffer(
-				[
-					new PositionColorVertex(new Vector3(-0.5f, -1, 0), Color.Blue),
-					new PositionColorVertex(new Vector3(-1f, 1, 0), Color.Green),
-					new PositionColorVertex(new Vector3(0f, 1, 0), Color.Red),
-
-					new PositionColorVertex(new Vector3(.5f, -1, 0), Color.Blue),
-					new PositionColorVertex(new Vector3(1f, 1, 0), Color.Green),
-					new PositionColorVertex(new Vector3(0f, 1, 0), Color.Red),
-				],
-				BufferUsageFlags.Vertex
-			);
-
-			drawBuffer = resourceUploader.CreateBuffer(
-				[
-					new IndirectDrawCommand(3, 1, 3, 0),
-					new IndirectDrawCommand(3, 1, 0, 0),
-				],
-				BufferUsageFlags.Indirect
-			);
-
-			resourceUploader.Upload();
-			resourceUploader.Dispose();
-		}
-
-		protected override void Update(System.TimeSpan delta) { }
-
-		protected override void Draw(double alpha)
-		{
-			CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
-			Texture? backbuffer = cmdbuf.AcquireSwapchainTexture(MainWindow);
-			if (backbuffer != null)
-			{
-				cmdbuf.BeginRenderPass(new ColorAttachmentInfo(backbuffer, WriteOptions.Cycle, Color.CornflowerBlue));
-				cmdbuf.BindGraphicsPipeline(graphicsPipeline);
-				cmdbuf.BindVertexBuffers(new BufferBinding(vertexBuffer, 0));
-				cmdbuf.DrawPrimitivesIndirect(drawBuffer, 0, 2, (uint) Marshal.SizeOf<IndirectDrawCommand>());
-				cmdbuf.EndRenderPass();
-			}
-			GraphicsDevice.Submit(cmdbuf);
-		}
-
-		public static void Main(string[] args)
-		{
-			DrawIndirectGame game = new DrawIndirectGame();
-			game.Run();
-		}
-	}
-}

MoonWorksGraphicsTests.csproj

@@ -35,6 +35,7 @@
 		<Compile Include="Examples\CubeExample.cs" />
 		<Compile Include="Examples\CullFaceExample.cs" />
 		<Compile Include="Examples\DepthMSAAExample.cs" />
+		<Compile Include="Examples\DrawIndirectExample.cs" />
 	</ItemGroup>
 
 	<Import Project=".\CopyMoonlibs.targets" />

Program.cs

@@ -18,7 +18,8 @@ class Program : Game
 		new CopyTextureExample(),
 		new CubeExample(),
 		new CullFaceExample(),
-		new DepthMSAAExample()
+		new DepthMSAAExample(),
+		new DrawIndirectExample()
 	];
 
 	int ExampleIndex = 0;