149 lines
5.6 KiB
C#
149 lines
5.6 KiB
C#
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using MoonWorks;
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using MoonWorks.Graphics;
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using MoonWorks.Math.Float;
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using RefreshCS;
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namespace MoonWorks.Test
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{
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class TextureMipmapsGame : Game
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{
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private GraphicsPipeline pipeline;
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private Buffer vertexBuffer;
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private Buffer indexBuffer;
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private Texture texture;
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private Sampler sampler;
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private float scale = 0.5f;
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private struct VertexUniforms
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{
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public Matrix4x4 TransformMatrix;
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public VertexUniforms(Matrix4x4 transformMatrix)
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{
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TransformMatrix = transformMatrix;
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}
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}
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public TextureMipmapsGame() : base(TestUtils.GetStandardWindowCreateInfo(), TestUtils.GetStandardFrameLimiterSettings(), 60, true)
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{
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Logger.LogInfo("Press Left and Right to shrink/expand the scale of the quad");
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// Load the shaders
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ShaderModule vertShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuadVertWithMatrix"));
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ShaderModule fragShaderModule = new ShaderModule(GraphicsDevice, TestUtils.GetShaderPath("TexturedQuadFrag"));
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// Create the graphics pipeline
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GraphicsPipelineCreateInfo pipelineCreateInfo = TestUtils.GetStandardGraphicsPipelineCreateInfo(
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MainWindow.SwapchainFormat,
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vertShaderModule,
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fragShaderModule
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);
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pipelineCreateInfo.VertexInputState = VertexInputState.CreateSingleBinding<PositionTextureVertex>();
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pipelineCreateInfo.VertexShaderInfo = GraphicsShaderInfo.Create<VertexUniforms>(vertShaderModule, "main", 0);
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pipelineCreateInfo.FragmentShaderInfo.SamplerBindingCount = 1;
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pipeline = new GraphicsPipeline(GraphicsDevice, pipelineCreateInfo);
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// Create and populate the GPU resources
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sampler = new Sampler(GraphicsDevice, SamplerCreateInfo.PointClamp);
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vertexBuffer = Buffer.Create<PositionTextureVertex>(GraphicsDevice, BufferUsageFlags.Vertex, 4);
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indexBuffer = Buffer.Create<ushort>(GraphicsDevice, BufferUsageFlags.Index, 6);
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texture = Texture.CreateTexture2D(
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GraphicsDevice,
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256,
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256,
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TextureFormat.R8G8B8A8,
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TextureUsageFlags.Sampler,
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4
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);
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CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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cmdbuf.SetBufferData(
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vertexBuffer,
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new PositionTextureVertex[]
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{
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new PositionTextureVertex(new Vector3(-1, -1, 0), new Vector2(0, 0)),
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new PositionTextureVertex(new Vector3(1, -1, 0), new Vector2(1, 0)),
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new PositionTextureVertex(new Vector3(1, 1, 0), new Vector2(1, 1)),
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new PositionTextureVertex(new Vector3(-1, 1, 0), new Vector2(0, 1)),
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}
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);
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cmdbuf.SetBufferData(
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indexBuffer,
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new ushort[]
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{
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0, 1, 2,
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0, 2, 3,
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}
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);
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// Set the various mip levels
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for (int i = 0; i < texture.LevelCount; i += 1)
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{
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int w = (int) texture.Width >> i;
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int h = (int) texture.Height >> i;
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TextureSlice slice = new TextureSlice(
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texture,
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new Rect(0, 0, w, h),
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0,
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0,
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(uint) i
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);
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var pixels = Refresh.Refresh_Image_Load(
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TestUtils.GetTexturePath($"mip{i}.png"),
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out var width,
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out var height,
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out var channels
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);
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var byteCount = (uint)(width * height * channels);
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cmdbuf.SetTextureData(slice, pixels, byteCount);
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Refresh.Refresh_Image_Free(pixels);
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}
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GraphicsDevice.Submit(cmdbuf);
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}
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protected override void Update(System.TimeSpan delta)
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{
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if (TestUtils.CheckButtonDown(Inputs, TestUtils.ButtonType.Left))
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{
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scale = System.MathF.Max(0.01f, scale - 0.01f);
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}
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if (TestUtils.CheckButtonDown(Inputs, TestUtils.ButtonType.Right))
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{
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scale = System.MathF.Min(1f, scale + 0.01f);
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}
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}
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protected override void Draw(double alpha)
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{
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VertexUniforms vertUniforms = new VertexUniforms(Matrix4x4.CreateScale(scale, scale, 1));
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CommandBuffer cmdbuf = GraphicsDevice.AcquireCommandBuffer();
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Texture? backbuffer = cmdbuf.AcquireSwapchainTexture(MainWindow);
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if (backbuffer != null)
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{
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cmdbuf.BeginRenderPass(new ColorAttachmentInfo(backbuffer, Color.Black));
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cmdbuf.BindGraphicsPipeline(pipeline);
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cmdbuf.BindVertexBuffers(vertexBuffer);
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cmdbuf.BindIndexBuffer(indexBuffer, IndexElementSize.Sixteen);
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cmdbuf.BindFragmentSamplers(new TextureSamplerBinding(texture, sampler));
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uint vertParamOffset = cmdbuf.PushVertexShaderUniforms(vertUniforms);
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cmdbuf.DrawIndexedPrimitives(0, 0, 2, vertParamOffset, 0);
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cmdbuf.EndRenderPass();
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}
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GraphicsDevice.Submit(cmdbuf);
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}
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public static void Main(string[] args)
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{
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TextureMipmapsGame game = new TextureMipmapsGame();
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game.Run();
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}
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}
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}
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