public void Points_WithUShortColor() { Texture target = RF.CreateTexture(TextureDescription.Texture2D( 50, 50, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.RenderTarget)); Texture staging = RF.CreateTexture(TextureDescription.Texture2D( 50, 50, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Staging)); Framebuffer framebuffer = RF.CreateFramebuffer(new FramebufferDescription(null, target)); DeviceBuffer infoBuffer = RF.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer)); DeviceBuffer orthoBuffer = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer)); Matrix4x4 orthoMatrix = Matrix4x4.CreateOrthographicOffCenter( 0, framebuffer.Width, framebuffer.Height, 0, -1, 1); GD.UpdateBuffer(orthoBuffer, 0, ref orthoMatrix); ShaderSetDescription shaderSet = new ShaderSetDescription( new VertexLayoutDescription[] { new VertexLayoutDescription( new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float2), new VertexElementDescription("Color_UInt", VertexElementSemantic.Color, VertexElementFormat.UShort4)) }, new Shader[] { TestShaders.Load(RF, "U16VertexAttribs", ShaderStages.Vertex, "VS"), TestShaders.Load(RF, "U16VertexAttribs", ShaderStages.Fragment, "FS") }); ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription( new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex), new ResourceLayoutElementDescription("Ortho", ResourceKind.UniformBuffer, ShaderStages.Vertex))); ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, infoBuffer, orthoBuffer)); GraphicsPipelineDescription gpd = new GraphicsPipelineDescription( BlendStateDescription.SingleOverrideBlend, DepthStencilStateDescription.Disabled, RasterizerStateDescription.Default, PrimitiveTopology.PointList, shaderSet, layout, framebuffer.OutputDescription); Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd); uint colorNormalizationFactor = 2500; VertexCPU_UShort[] vertices = new VertexCPU_UShort[] { new VertexCPU_UShort { Position = new Vector2(0.5f, 0.5f), R = (ushort)(0.25f * colorNormalizationFactor), G = (ushort)(0.5f * colorNormalizationFactor), B = (ushort)(0.75f * colorNormalizationFactor), }, new VertexCPU_UShort { Position = new Vector2(10.5f, 12.5f), R = (ushort)(0.25f * colorNormalizationFactor), G = (ushort)(0.5f * colorNormalizationFactor), B = (ushort)(0.75f * colorNormalizationFactor), }, new VertexCPU_UShort { Position = new Vector2(25.5f, 35.5f), R = (ushort)(0.75f * colorNormalizationFactor), G = (ushort)(0.5f * colorNormalizationFactor), B = (ushort)(0.25f * colorNormalizationFactor), }, new VertexCPU_UShort { Position = new Vector2(49.5f, 49.5f), R = (ushort)(0.15f * colorNormalizationFactor), G = (ushort)(0.2f * colorNormalizationFactor), B = (ushort)(0.35f * colorNormalizationFactor), }, }; DeviceBuffer vb = RF.CreateBuffer( new BufferDescription((uint)(Unsafe.SizeOf <UIntVertexAttribs.Vertex>() * vertices.Length), BufferUsage.VertexBuffer)); GD.UpdateBuffer(vb, 0, vertices); GD.UpdateBuffer(infoBuffer, 0, new UIntVertexAttribs.Info { ColorNormalizationFactor = colorNormalizationFactor }); CommandList cl = RF.CreateCommandList(); cl.Begin(); cl.SetFramebuffer(framebuffer); cl.SetFullViewports(); cl.SetFullScissorRects(); cl.ClearColorTarget(0, RgbaFloat.Black); cl.SetPipeline(pipeline); cl.SetVertexBuffer(0, vb); cl.SetGraphicsResourceSet(0, set); cl.Draw((uint)vertices.Length); cl.SetFramebuffer(GD.SwapchainFramebuffer); cl.ClearColorTarget(0, RgbaFloat.Red); cl.CopyTexture(target, staging); cl.End(); GD.SubmitCommands(cl); GD.WaitForIdle(); MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(staging, MapMode.Read); foreach (VertexCPU_UShort vertex in vertices) { uint x = (uint)vertex.Position.X; uint y = (uint)vertex.Position.Y; if (GD.BackendType == GraphicsBackend.OpenGL) { y = framebuffer.Height - y - 1; } RgbaFloat expectedColor = new RgbaFloat( vertex.R / (float)colorNormalizationFactor, vertex.G / (float)colorNormalizationFactor, vertex.B / (float)colorNormalizationFactor, 1); Assert.Equal(expectedColor, readView[x, y], RgbaFloatFuzzyComparer.Instance); } GD.Unmap(staging); }
public void Points_WithFloat16Color() { Texture target = RF.CreateTexture(TextureDescription.Texture2D( 50, 50, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.RenderTarget)); Texture staging = RF.CreateTexture(TextureDescription.Texture2D( 50, 50, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Staging)); Framebuffer framebuffer = RF.CreateFramebuffer(new FramebufferDescription(null, target)); DeviceBuffer infoBuffer = RF.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer)); DeviceBuffer orthoBuffer = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer)); Matrix4x4 orthoMatrix = Matrix4x4.CreateOrthographicOffCenter( 0, framebuffer.Width, framebuffer.Height, 0, -1, 1); GD.UpdateBuffer(orthoBuffer, 0, ref orthoMatrix); ShaderSetDescription shaderSet = new ShaderSetDescription( new VertexLayoutDescription[] { new VertexLayoutDescription( new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2), new VertexElementDescription("Color_Half", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Half4)) }, TestShaders.LoadVertexFragment(RF, "F16VertexAttribs")); ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription( new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex), new ResourceLayoutElementDescription("OrthoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex))); ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, infoBuffer, orthoBuffer)); GraphicsPipelineDescription gpd = new GraphicsPipelineDescription( BlendStateDescription.SingleOverrideBlend, DepthStencilStateDescription.Disabled, RasterizerStateDescription.Default, PrimitiveTopology.PointList, shaderSet, layout, framebuffer.OutputDescription); Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd); uint colorNormalizationFactor = 2500; const ushort f16_375 = 0x5DDC; // 375.0 const ushort f16_500 = 0x5FD0; // 500.0 const ushort f16_625 = 0x60E2; // 625.0 const ushort f16_875 = 0x62D6; // 875.0 const ushort f16_1250 = 0x64E2; // 1250.0 const ushort f16_1875 = 0x6753; // 1875.0 VertexCPU_UShort[] vertices = new VertexCPU_UShort[] { new VertexCPU_UShort { Position = new Vector2(0.5f, 0.5f), R = f16_625, G = f16_1250, B = f16_1875, }, new VertexCPU_UShort { Position = new Vector2(10.5f, 12.5f), R = f16_625, G = f16_1250, B = f16_1875, }, new VertexCPU_UShort { Position = new Vector2(25.5f, 35.5f), R = f16_1875, G = f16_1250, B = f16_625, }, new VertexCPU_UShort { Position = new Vector2(49.5f, 49.5f), R = f16_375, G = f16_500, B = f16_875, }, }; RgbaFloat[] expectedColors = new[] { new RgbaFloat( 625.0f / colorNormalizationFactor, 1250.0f / colorNormalizationFactor, 1875.0f / colorNormalizationFactor, 1), new RgbaFloat( 625.0f / colorNormalizationFactor, 1250.0f / colorNormalizationFactor, 1875.0f / colorNormalizationFactor, 1), new RgbaFloat( 1875.0f / colorNormalizationFactor, 1250.0f / colorNormalizationFactor, 625.0f / colorNormalizationFactor, 1), new RgbaFloat( 375.0f / colorNormalizationFactor, 500.0f / colorNormalizationFactor, 875.0f / colorNormalizationFactor, 1), }; DeviceBuffer vb = RF.CreateBuffer( new BufferDescription((uint)(Unsafe.SizeOf <UIntVertexAttribsVertex>() * vertices.Length), BufferUsage.VertexBuffer)); GD.UpdateBuffer(vb, 0, vertices); GD.UpdateBuffer(infoBuffer, 0, new UIntVertexAttribsInfo { ColorNormalizationFactor = colorNormalizationFactor }); CommandList cl = RF.CreateCommandList(); cl.Begin(); cl.SetFramebuffer(framebuffer); cl.SetFullViewports(); cl.SetFullScissorRects(); cl.ClearColorTarget(0, RgbaFloat.Black); cl.SetPipeline(pipeline); cl.SetVertexBuffer(0, vb); cl.SetGraphicsResourceSet(0, set); cl.Draw((uint)vertices.Length); cl.CopyTexture(target, staging); cl.End(); GD.SubmitCommands(cl); GD.WaitForIdle(); MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(staging, MapMode.Read); for (int i = 0; i < vertices.Length; i++) { VertexCPU_UShort vertex = vertices[i]; uint x = (uint)vertex.Position.X; uint y = (uint)vertex.Position.Y; if (!GD.IsUvOriginTopLeft || GD.IsClipSpaceYInverted) { y = framebuffer.Height - y - 1; } RgbaFloat expectedColor = expectedColors[i]; Assert.Equal(expectedColor, readView[x, y], RgbaFloatFuzzyComparer.Instance); } GD.Unmap(staging); }