MoonWorksGraphicsTests/MSAA/MSAAGame.cs

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using MoonWorks;
using MoonWorks.Math.Float;
using MoonWorks.Graphics;
namespace MoonWorks.Test
{
class MSAAGame : Game
{
private GraphicsPipeline[] msaaPipelines = new GraphicsPipeline[4];
private GraphicsPipeline blitPipeline;
private Texture[] renderTargets = new Texture[4];
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private Sampler rtSampler;
private Buffer quadVertexBuffer;
private Buffer quadIndexBuffer;
private SampleCount currentSampleCount = SampleCount.Four;
public MSAAGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
{
Logger.LogInfo("Press Left and Right to cycle between sample counts");
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Logger.LogInfo("Setting sample count to: " + currentSampleCount);
// Create the MSAA pipelines
ShaderModule triangleVertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("RawTriangle.vert"));
ShaderModule triangleFragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("SolidColor.frag"));
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GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
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TextureFormat.R8G8B8A8,
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triangleVertShaderModule,
triangleFragShaderModule
);
for (int i = 0; i < msaaPipelines.Length; i += 1)
{
pipelineCreateInfo.MultisampleState.MultisampleCount = (SampleCount) i;
msaaPipelines[i] = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
}
// Create the blit pipeline
ShaderModule blitVertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad.vert"));
ShaderModule blitFragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuad.frag"));
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pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
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MainWindow.SwapchainFormat,
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blitVertShaderModule,
blitFragShaderModule
);
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pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionTextureVertex>();
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pipelineCreateInfo.FragmentShaderInfo.SamplerBindingCount = 1;
blitPipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
// Create the MSAA render textures
for (int i = 0; i < renderTargets.Length; i += 1)
{
renderTargets[i] = Texture.CreateTexture2D(
GraphicsDevice,
MainWindow.Width,
MainWindow.Height,
TextureFormat.R8G8B8A8,
TextureUsageFlags.ColorTarget | TextureUsageFlags.Sampler,
1,
(SampleCount) i
);
}
// Create the sampler
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rtSampler = new Sampler(GraphicsDevice, SamplerCreateInfo.PointClamp);
// Create and populate the vertex and index buffers
quadVertexBuffer = Buffer.Create<PositionTextureVertex>(GraphicsDevice, BufferUsageFlags.Vertex, 4);
quadIndexBuffer = Buffer.Create<ushort>(GraphicsDevice, BufferUsageFlags.Index, 6);
CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
cmdbuf.SetBufferData(
quadVertexBuffer,
new PositionTextureVertex[]
{
new PositionTextureVertex(new Vector3(-1, -1, 0), new Vector2(0, 0)),
new PositionTextureVertex(new Vector3(1, -1, 0), new Vector2(1, 0)),
new PositionTextureVertex(new Vector3(1, 1, 0), new Vector2(1, 1)),
new PositionTextureVertex(new Vector3(-1, 1, 0), new Vector2(0, 1)),
}
);
cmdbuf.SetBufferData(
quadIndexBuffer,
new ushort[]
{
0, 1, 2,
0, 2, 3,
}
);
GraphicsDevice.Submit(cmdbuf);
}
protected override void Update(System.TimeSpan delta)
{
SampleCount prevSampleCount = currentSampleCount;
if (TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Left))
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{
currentSampleCount -= 1;
if (currentSampleCount < 0)
{
currentSampleCount = SampleCount.Eight;
}
}
if (TestUtils.CheckButtonPressed(Inputs, TestUtils.ButtonType.Right))
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{
currentSampleCount += 1;
if (currentSampleCount > SampleCount.Eight)
{
currentSampleCount = SampleCount.One;
}
}
if (prevSampleCount != currentSampleCount)
{
Logger.LogInfo("Setting sample count to: " + currentSampleCount);
}
}
protected override void Draw(double alpha)
{
CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
Texture? backbuffer = cmdbuf.AcquireSwapchainTexture(MainWindow);
if (backbuffer != null)
{
Texture rt = renderTargets[(int) currentSampleCount];
cmdbuf.BeginRenderPass(new ColorAttachmentInfo(rt, Color.Black));
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cmdbuf.BindGraphicsPipeline(msaaPipelines[(int) currentSampleCount]);
cmdbuf.DrawPrimitives(0, 1, 0, 0);
cmdbuf.EndRenderPass();
cmdbuf.BeginRenderPass(new ColorAttachmentInfo(backbuffer, LoadOp.DontCare));
cmdbuf.BindGraphicsPipeline(blitPipeline);
cmdbuf.BindFragmentSamplers(new TextureSamplerBinding(rt, rtSampler));
cmdbuf.BindVertexBuffers(quadVertexBuffer);
cmdbuf.BindIndexBuffer(quadIndexBuffer, IndexElementSize.Sixteen);
cmdbuf.DrawIndexedPrimitives(0, 0, 2, 0, 0);
cmdbuf.EndRenderPass();
}
GraphicsDevice.Submit(cmdbuf);
}
public static void Main(string[] args)
{
MSAAGame game = new MSAAGame();
game.Run();
}
}
}