public void ResourceSet_TooFewOrTooManyElements_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("UB0", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("UB1", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("UB2", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
DeviceBuffer ub = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer));
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout, ub));
});
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout, ub, ub));
});
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout, ub, ub, ub, ub));
});
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout, ub, ub, ub, ub, ub));
});
}
public void Dispose_ResourceSet()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Ortho", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
DeviceBuffer ub0 = RF.CreateBuffer(new BufferDescription(256, BufferUsage.UniformBuffer));
DeviceBuffer ub1 = RF.CreateBuffer(new BufferDescription(256, BufferUsage.UniformBuffer));
ResourceSet rs = RF.CreateResourceSet(new ResourceSetDescription(layout, ub0, ub1));
rs.Dispose();
Assert.True(rs.IsDisposed);
Assert.False(ub0.IsDisposed);
Assert.False(ub1.IsDisposed);
Assert.False(layout.IsDisposed);
layout.Dispose();
Assert.True(layout.IsDisposed);
Assert.False(ub0.IsDisposed);
Assert.False(ub1.IsDisposed);
ub0.Dispose();
Assert.True(ub0.IsDisposed);
ub1.Dispose();
Assert.True(ub1.IsDisposed);
}
public void ResourceSet_IncompatibleSet_Fails()
{
DeviceBuffer infoBuffer = RF.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer));
DeviceBuffer orthoBuffer = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer));
ShaderSetDescription shaderSet = new ShaderSetDescription(
new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float2),
new VertexElementDescription("Color_UInt", VertexElementSemantic.Color, VertexElementFormat.UInt4))
},
new Shader[]
{
TestShaders.Load(RF, "UIntVertexAttribs", ShaderStages.Vertex, "VS"),
TestShaders.Load(RF, "UIntVertexAttribs", ShaderStages.Fragment, "FS")
});
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Ortho", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
ResourceLayout layout2 = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Tex", ResourceKind.TextureReadOnly, ShaderStages.Fragment)));
ResourceLayout layout3 = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InfoBuffer", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
Texture tex = RF.CreateTexture(TextureDescription.Texture2D(16, 16, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Sampled));
TextureView texView = RF.CreateTextureView(tex);
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, infoBuffer, orthoBuffer));
ResourceSet set2 = RF.CreateResourceSet(new ResourceSetDescription(layout2, infoBuffer, texView));
ResourceSet set3 = RF.CreateResourceSet(new ResourceSetDescription(layout3, infoBuffer));
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.Default,
PrimitiveTopology.PointList,
shaderSet,
layout,
new OutputDescription(null, new OutputAttachmentDescription(PixelFormat.B8_G8_R8_A8_UNorm)));
Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd);
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(pipeline);
cl.SetGraphicsResourceSet(0, set);
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(0, set2)); // Wrong type
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(0, set3)); // Wrong count
}
public void ResourceSet_IncorrectBufferUsage_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("RWB0", ResourceKind.StructuredBufferReadWrite, ShaderStages.Vertex)));
DeviceBuffer readOnlyBuffer = RF.CreateBuffer(new BufferDescription(1024, BufferUsage.UniformBuffer));
Assert.Throws <VeldridException>(() =>
{
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, readOnlyBuffer));
});
}
public void ResourceSet_BufferInsteadOfTextureView_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("TV0", ResourceKind.TextureReadOnly, ShaderStages.Vertex)));
DeviceBuffer ub = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer));
Assert.Throws <VeldridException>(() =>
{
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout,
ub));
});
}
public void ResourceSet_IncorrectTextureUsage_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("TV0", ResourceKind.TextureReadWrite, ShaderStages.Vertex)));
Texture t = RF.CreateTexture(TextureDescription.Texture2D(64, 64, 1, 1, PixelFormat.R8_G8_B8_A8_UNorm, TextureUsage.Sampled));
TextureView tv = RF.CreateTextureView(t);
Assert.Throws <VeldridException>(() =>
{
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, tv));
});
}
public void ResourceSet_NoPipelineBound_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("UB0", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
DeviceBuffer ub = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer));
ResourceSet rs = RF.CreateResourceSet(new ResourceSetDescription(layout, ub));
CommandList cl = RF.CreateCommandList();
cl.Begin();
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(0, rs));
}
public void ResourceSet_InvalidUniformOffset_Fails()
{
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("UB0", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
DeviceBuffer buffer = RF.CreateBuffer(new BufferDescription(1024, BufferUsage.UniformBuffer));
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout,
new DeviceBufferRange(buffer, GD.UniformBufferMinOffsetAlignment - 1, 256)));
});
Assert.Throws <VeldridException>(() =>
{
RF.CreateResourceSet(new ResourceSetDescription(layout,
new DeviceBufferRange(buffer, GD.UniformBufferMinOffsetAlignment + 1, 256)));
});
}
public void ResourceSet_InvalidSlot_Fails()
{
DeviceBuffer infoBuffer = RF.CreateBuffer(new BufferDescription(16, BufferUsage.UniformBuffer));
DeviceBuffer orthoBuffer = RF.CreateBuffer(new BufferDescription(64, BufferUsage.UniformBuffer));
ShaderSetDescription shaderSet = new ShaderSetDescription(
new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.Position, VertexElementFormat.Float2),
new VertexElementDescription("Color_UInt", VertexElementSemantic.Color, VertexElementFormat.UInt4))
},
new Shader[]
{
TestShaders.Load(RF, "UIntVertexAttribs", ShaderStages.Vertex, "VS"),
TestShaders.Load(RF, "UIntVertexAttribs", 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,
new OutputDescription(null, new OutputAttachmentDescription(PixelFormat.B8_G8_R8_A8_UNorm)));
Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd);
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(pipeline);
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(1, set));
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(2, set));
Assert.Throws <VeldridException>(() => cl.SetGraphicsResourceSet(3, set));
}
public void ComputeGeneratedVertices()
{
if (!GD.Features.ComputeShader)
{
return;
}
uint width = 512;
uint height = 512;
Texture output = RF.CreateTexture(
TextureDescription.Texture2D(width, height, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.RenderTarget));
Framebuffer framebuffer = RF.CreateFramebuffer(new FramebufferDescription(null, output));
uint vertexSize = (uint)Unsafe.SizeOf <ColoredVertex>();
DeviceBuffer buffer = RF.CreateBuffer(new BufferDescription(
vertexSize * 4,
BufferUsage.StructuredBufferReadWrite,
vertexSize,
true));
ResourceLayout computeLayout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("OutputVertices", ResourceKind.StructuredBufferReadWrite, ShaderStages.Compute)));
ResourceSet computeSet = RF.CreateResourceSet(new ResourceSetDescription(computeLayout, buffer));
Pipeline computePipeline = RF.CreateComputePipeline(new ComputePipelineDescription(
TestShaders.LoadCompute(RF, "ComputeColoredQuadGenerator"),
computeLayout,
1, 1, 1));
ResourceLayout graphicsLayout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("InputVertices", ResourceKind.StructuredBufferReadOnly, ShaderStages.Vertex)));
ResourceSet graphicsSet = RF.CreateResourceSet(new ResourceSetDescription(graphicsLayout, buffer));
Pipeline graphicsPipeline = RF.CreateGraphicsPipeline(new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.Default,
PrimitiveTopology.TriangleStrip,
new ShaderSetDescription(
Array.Empty <VertexLayoutDescription>(),
TestShaders.LoadVertexFragment(RF, "ColoredQuadRenderer")),
graphicsLayout,
framebuffer.OutputDescription));
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(computePipeline);
cl.SetComputeResourceSet(0, computeSet);
cl.Dispatch(1, 1, 1);
cl.SetFramebuffer(framebuffer);
cl.ClearColorTarget(0, new RgbaFloat());
cl.SetPipeline(graphicsPipeline);
cl.SetGraphicsResourceSet(0, graphicsSet);
cl.Draw(4);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
Texture readback = GetReadback(output);
MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(readback, MapMode.Read);
for (uint y = 0; y < height; y++)
{
for (uint x = 0; x < width; x++)
{
Assert.Equal(RgbaFloat.Red, readView[x, y]);
}
}
GD.Unmap(readback);
}
public void BasicCompute()
{
if (!GD.Features.ComputeShader)
{
return;
}
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Params", ResourceKind.UniformBuffer, ShaderStages.Compute),
new ResourceLayoutElementDescription("Source", ResourceKind.StructuredBufferReadWrite, ShaderStages.Compute),
new ResourceLayoutElementDescription("Destination", ResourceKind.StructuredBufferReadWrite, ShaderStages.Compute)));
uint width = 1024;
uint height = 1024;
DeviceBuffer paramsBuffer = RF.CreateBuffer(new BufferDescription((uint)Unsafe.SizeOf <BasicComputeTestParams>(), BufferUsage.UniformBuffer));
DeviceBuffer sourceBuffer = RF.CreateBuffer(new BufferDescription(width * height * 4, BufferUsage.StructuredBufferReadWrite, 4));
DeviceBuffer destinationBuffer = RF.CreateBuffer(new BufferDescription(width * height * 4, BufferUsage.StructuredBufferReadWrite, 4));
GD.UpdateBuffer(paramsBuffer, 0, new BasicComputeTestParams {
Width = width, Height = height
});
float[] sourceData = new float[width * height];
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int index = y * (int)width + x;
sourceData[index] = index;
}
}
GD.UpdateBuffer(sourceBuffer, 0, sourceData);
ResourceSet rs = RF.CreateResourceSet(new ResourceSetDescription(layout, paramsBuffer, sourceBuffer, destinationBuffer));
Pipeline pipeline = RF.CreateComputePipeline(new ComputePipelineDescription(
TestShaders.LoadCompute(RF, "BasicComputeTest"),
layout,
16, 16, 1));
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(pipeline);
cl.SetComputeResourceSet(0, rs);
cl.Dispatch(width / 16, width / 16, 1);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
DeviceBuffer sourceReadback = GetReadback(sourceBuffer);
DeviceBuffer destinationReadback = GetReadback(destinationBuffer);
MappedResourceView <float> sourceReadView = GD.Map <float>(sourceReadback, MapMode.Read);
MappedResourceView <float> destinationReadView = GD.Map <float>(destinationReadback, MapMode.Read);
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
int index = y * (int)width + x;
Assert.Equal(2 * sourceData[index], sourceReadView[index]);
Assert.Equal(sourceData[index], destinationReadView[index]);
}
}
GD.Unmap(sourceReadback);
GD.Unmap(destinationReadback);
}
public void Points_WithUShortNormColor()
{
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 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", VertexElementSemantic.TextureCoordinate, VertexElementFormat.UShort4_Norm))
},
TestShaders.LoadVertexFragment(RF, "U16NormVertexAttribs"));
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Ortho", ResourceKind.UniformBuffer, ShaderStages.Vertex)));
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, orthoBuffer));
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.Default,
PrimitiveTopology.PointList,
shaderSet,
layout,
framebuffer.OutputDescription);
Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd);
VertexCPU_UShortNorm[] vertices = new VertexCPU_UShortNorm[]
{
new VertexCPU_UShortNorm
{
Position = new Vector2(0.5f, 0.5f),
R = UShortNorm(0.25f),
G = UShortNorm(0.5f),
B = UShortNorm(0.75f),
},
new VertexCPU_UShortNorm
{
Position = new Vector2(10.5f, 12.5f),
R = UShortNorm(0.25f),
G = UShortNorm(0.5f),
B = UShortNorm(0.75f),
},
new VertexCPU_UShortNorm
{
Position = new Vector2(25.5f, 35.5f),
R = UShortNorm(0.75f),
G = UShortNorm(0.5f),
B = UShortNorm(0.25f),
},
new VertexCPU_UShortNorm
{
Position = new Vector2(49.5f, 49.5f),
R = UShortNorm(0.15f),
G = UShortNorm(0.25f),
B = UShortNorm(0.35f),
},
};
DeviceBuffer vb = RF.CreateBuffer(
new BufferDescription((uint)(Unsafe.SizeOf <VertexCPU_UShortNorm>() * vertices.Length), BufferUsage.VertexBuffer));
GD.UpdateBuffer(vb, 0, vertices);
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);
foreach (VertexCPU_UShortNorm vertex in vertices)
{
uint x = (uint)vertex.Position.X;
uint y = (uint)vertex.Position.Y;
if (!GD.IsUvOriginTopLeft || GD.IsClipSpaceYInverted)
{
y = framebuffer.Height - y - 1;
}
RgbaFloat expectedColor = new RgbaFloat(
vertex.R / (float)ushort.MaxValue,
vertex.G / (float)ushort.MaxValue,
vertex.B / (float)ushort.MaxValue,
1);
Assert.Equal(expectedColor, readView[x, y], RgbaFloatFuzzyComparer.Instance);
}
GD.Unmap(staging);
}
public void SampleTexture1D(bool arrayTexture)
{
if (!GD.Features.Texture1D)
{
return;
}
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));
string SetName = arrayTexture ? "FullScreenTriSampleTextureArray" : "FullScreenTriSampleTexture";
ShaderSetDescription shaderSet = new ShaderSetDescription(
Array.Empty <VertexLayoutDescription>(),
TestShaders.LoadVertexFragment(RF, SetName));
uint layers = arrayTexture ? 10u : 1u;
Texture tex1D = RF.CreateTexture(
TextureDescription.Texture1D(128, 1, layers, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Sampled));
RgbaFloat[] colors = new RgbaFloat[tex1D.Width];
for (int i = 0; i < colors.Length; i++)
{
colors[i] = RgbaFloat.Pink;
}
GD.UpdateTexture(tex1D, colors, 0, 0, 0, tex1D.Width, 1, 1, 0, 0);
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Tex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("Smp", ResourceKind.Sampler, ShaderStages.Fragment)));
ResourceSet set = RF.CreateResourceSet(new ResourceSetDescription(layout, tex1D, GD.PointSampler));
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.CullNone,
PrimitiveTopology.TriangleList,
shaderSet,
layout,
framebuffer.OutputDescription);
Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd);
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetFramebuffer(framebuffer);
cl.SetFullViewports();
cl.SetFullScissorRects();
cl.ClearColorTarget(0, RgbaFloat.Black);
cl.SetPipeline(pipeline);
cl.SetGraphicsResourceSet(0, set);
cl.Draw(3);
cl.CopyTexture(target, staging);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(staging, MapMode.Read);
for (int x = 0; x < staging.Width; x++)
{
Assert.Equal(RgbaFloat.Pink, readView[x, 0]);
}
GD.Unmap(staging);
}
public void ComputeGeneratedTexture()
{
if (!GD.Features.ComputeShader)
{
return;
}
uint width = 4;
uint height = 1;
TextureDescription texDesc = TextureDescription.Texture2D(
width, height,
1,
1,
PixelFormat.R32_G32_B32_A32_Float,
TextureUsage.Sampled | TextureUsage.Storage);
Texture computeOutput = RF.CreateTexture(texDesc);
texDesc.Usage = TextureUsage.RenderTarget;
Texture finalOutput = RF.CreateTexture(texDesc);
Framebuffer framebuffer = RF.CreateFramebuffer(new FramebufferDescription(null, finalOutput));
ResourceLayout computeLayout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("ComputeOutput", ResourceKind.TextureReadWrite, ShaderStages.Compute)));
ResourceSet computeSet = RF.CreateResourceSet(new ResourceSetDescription(computeLayout, computeOutput));
Pipeline computePipeline = RF.CreateComputePipeline(new ComputePipelineDescription(
TestShaders.LoadCompute(RF, "ComputeTextureGenerator"),
computeLayout,
4, 1, 1));
ResourceLayout graphicsLayout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Input", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("InputSampler", ResourceKind.Sampler, ShaderStages.Fragment)));
ResourceSet graphicsSet = RF.CreateResourceSet(new ResourceSetDescription(graphicsLayout, computeOutput, GD.PointSampler));
Pipeline graphicsPipeline = RF.CreateGraphicsPipeline(new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.CullNone,
PrimitiveTopology.TriangleStrip,
new ShaderSetDescription(
Array.Empty <VertexLayoutDescription>(),
TestShaders.LoadVertexFragment(RF, "FullScreenBlit")),
graphicsLayout,
framebuffer.OutputDescription));
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(computePipeline);
cl.SetComputeResourceSet(0, computeSet);
cl.Dispatch(1, 1, 1);
cl.SetFramebuffer(framebuffer);
cl.ClearColorTarget(0, new RgbaFloat());
cl.SetPipeline(graphicsPipeline);
cl.SetGraphicsResourceSet(0, graphicsSet);
cl.Draw(4);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
Texture readback = GetReadback(finalOutput);
MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(readback, MapMode.Read);
Assert.Equal(RgbaFloat.Red, readView[0, 0]);
Assert.Equal(RgbaFloat.Green, readView[1, 0]);
Assert.Equal(RgbaFloat.Blue, readView[2, 0]);
Assert.Equal(RgbaFloat.White, readView[3, 0]);
GD.Unmap(readback);
}
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 ComputeShader3dTexture()
{
// Just a dumb compute shader that fills a 3D texture with the same value from a uniform multiplied by the depth.
string shaderText = @"
#version 450
layout(set = 0, binding = 0, rgba32f) uniform image3D TextureToFill;
layout(set = 0, binding = 1) uniform FillValueBuffer
{
float FillValue;
float Padding1;
float Padding2;
float Padding3;
};
layout(local_size_x = 16, local_size_y = 16, local_size_z = 1) in;
void main()
{
ivec3 textureCoordinate = ivec3(gl_GlobalInvocationID.xyz);
float dataToStore = FillValue * (textureCoordinate.z + 1);
imageStore(TextureToFill, textureCoordinate, vec4(dataToStore));
}
";
const float FillValue = 42.42f;
const uint OutputTextureSize = 32;
using Shader computeShader = RF.CreateFromSpirv(new ShaderDescription(
ShaderStages.Compute,
Encoding.ASCII.GetBytes(shaderText),
"main"));
using ResourceLayout computeLayout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("TextureToFill", ResourceKind.TextureReadWrite, ShaderStages.Compute),
new ResourceLayoutElementDescription("FillValueBuffer", ResourceKind.UniformBuffer, ShaderStages.Compute)));
using Pipeline computePipeline = RF.CreateComputePipeline(new ComputePipelineDescription(
computeShader,
computeLayout,
16, 16, 1));
using DeviceBuffer fillValueBuffer = RF.CreateBuffer(new BufferDescription((uint)Marshal.SizeOf <FillValueStruct>(), BufferUsage.UniformBuffer));
// Create our output texture.
using Texture computeTargetTexture = RF.CreateTexture(TextureDescription.Texture3D(
OutputTextureSize,
OutputTextureSize,
OutputTextureSize,
1,
PixelFormat.R32_G32_B32_A32_Float,
TextureUsage.Sampled | TextureUsage.Storage));
using TextureView computeTargetTextureView = RF.CreateTextureView(computeTargetTexture);
using ResourceSet computeResourceSet = RF.CreateResourceSet(new ResourceSetDescription(
computeLayout,
computeTargetTextureView,
fillValueBuffer));
using CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.UpdateBuffer(fillValueBuffer, 0, new FillValueStruct(FillValue));
// Use the compute shader to fill the texture.
cl.SetPipeline(computePipeline);
cl.SetComputeResourceSet(0, computeResourceSet);
const uint GroupDivisorXY = 16;
cl.Dispatch(OutputTextureSize / GroupDivisorXY, OutputTextureSize / GroupDivisorXY, OutputTextureSize);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
// Read back from our texture and make sure it has been properly filled.
for (uint depth = 0; depth < computeTargetTexture.Depth; depth++)
{
RgbaFloat expectedFillValue = new RgbaFloat(new System.Numerics.Vector4(FillValue * (depth + 1)));
int notFilledCount = CountTexelsNotFilledAtDepth(GD, computeTargetTexture, expectedFillValue, depth);
if (notFilledCount == 0)
{
// Expected behavior:
Console.WriteLine($"All texels were properly set at depth {depth}");
}
else
{
// Unexpected behavior:
uint totalTexels = computeTargetTexture.Width * computeTargetTexture.Height;
throw new Exception($"{notFilledCount} of {totalTexels} texels were not properly set at depth {depth}");
}
}
}
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);
}
public void FillBuffer_WithOffsets(uint srcSetMultiple, uint srcBindingMultiple, uint dstSetMultiple, uint dstBindingMultiple, bool combinedLayout)
{
if (!GD.Features.ComputeShader)
{
return;
}
Debug.Assert((GD.StructuredBufferMinOffsetAlignment % sizeof(uint)) == 0);
uint valueCount = 512;
uint dataSize = valueCount * sizeof(uint);
uint totalSrcAlignment = GD.StructuredBufferMinOffsetAlignment * (srcSetMultiple + srcBindingMultiple);
uint totalDstAlignment = GD.StructuredBufferMinOffsetAlignment * (dstSetMultiple + dstBindingMultiple);
DeviceBuffer copySrc = RF.CreateBuffer(
new BufferDescription(totalSrcAlignment + dataSize, BufferUsage.StructuredBufferReadOnly, sizeof(uint)));
DeviceBuffer copyDst = RF.CreateBuffer(
new BufferDescription(totalDstAlignment + dataSize, BufferUsage.StructuredBufferReadWrite, sizeof(uint)));
ResourceLayout[] layouts;
ResourceSet[] sets;
DeviceBufferRange srcRange = new DeviceBufferRange(copySrc, srcSetMultiple * GD.StructuredBufferMinOffsetAlignment, dataSize);
DeviceBufferRange dstRange = new DeviceBufferRange(copyDst, dstSetMultiple * GD.StructuredBufferMinOffsetAlignment, dataSize);
if (combinedLayout)
{
layouts = new[]
{
RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription(
"CopySrc",
ResourceKind.StructuredBufferReadOnly,
ShaderStages.Compute,
ResourceLayoutElementOptions.DynamicBinding),
new ResourceLayoutElementDescription(
"CopyDst",
ResourceKind.StructuredBufferReadWrite,
ShaderStages.Compute,
ResourceLayoutElementOptions.DynamicBinding)))
};
sets = new[]
{
RF.CreateResourceSet(new ResourceSetDescription(layouts[0], srcRange, dstRange))
};
}
else
{
layouts = new[]
{
RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription(
"CopySrc",
ResourceKind.StructuredBufferReadOnly,
ShaderStages.Compute,
ResourceLayoutElementOptions.DynamicBinding))),
RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription(
"CopyDst",
ResourceKind.StructuredBufferReadWrite,
ShaderStages.Compute,
ResourceLayoutElementOptions.DynamicBinding)))
};
sets = new[]
{
RF.CreateResourceSet(new ResourceSetDescription(layouts[0], srcRange)),
RF.CreateResourceSet(new ResourceSetDescription(layouts[1], dstRange)),
};
}
Pipeline pipeline = RF.CreateComputePipeline(new ComputePipelineDescription(
TestShaders.LoadCompute(RF, combinedLayout ? "FillBuffer" : "FillBuffer_SeparateLayout"),
layouts,
1, 1, 1));
uint[] srcData = Enumerable.Range(0, (int)copySrc.SizeInBytes / sizeof(uint)).Select(i => (uint)i).ToArray();
GD.UpdateBuffer(copySrc, 0, srcData);
CommandList cl = RF.CreateCommandList();
cl.Begin();
cl.SetPipeline(pipeline);
if (combinedLayout)
{
uint[] offsets = new[]
{
srcBindingMultiple *GD.StructuredBufferMinOffsetAlignment,
dstBindingMultiple *GD.StructuredBufferMinOffsetAlignment
};
cl.SetComputeResourceSet(0, sets[0], offsets);
}
else
{
uint offset = srcBindingMultiple * GD.StructuredBufferMinOffsetAlignment;
cl.SetComputeResourceSet(0, sets[0], 1, ref offset);
offset = dstBindingMultiple * GD.StructuredBufferMinOffsetAlignment;
cl.SetComputeResourceSet(1, sets[1], 1, ref offset);
}
cl.Dispatch(512, 1, 1);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
DeviceBuffer readback = GetReadback(copyDst);
MappedResourceView <uint> readView = GD.Map <uint>(readback, MapMode.Read);
for (uint i = 0; i < valueCount; i++)
{
uint srcIndex = totalSrcAlignment / sizeof(uint) + i;
uint expected = srcData[(int)srcIndex];
uint dstIndex = totalDstAlignment / sizeof(uint) + i;
uint actual = readView[dstIndex];
Assert.Equal(expected, actual);
}
GD.Unmap(readback);
}
public unsafe void Points_WithTexture_UpdateUnrelated(bool useTextureView)
{
// This is a regression test for the case where a user modifies an unrelated texture
// at a time after a ResourceSet containing a texture has been bound. The OpenGL
// backend was caching texture state improperly, resulting in wrong textures being sampled.
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 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);
Texture sampledTexture = RF.CreateTexture(
TextureDescription.Texture2D(1, 1, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Sampled));
RgbaFloat white = RgbaFloat.White;
GD.UpdateTexture(sampledTexture, (IntPtr)(&white), (uint)Unsafe.SizeOf <RgbaFloat>(), 0, 0, 0, 1, 1, 1, 0, 0);
Texture shouldntBeSampledTexture = RF.CreateTexture(
TextureDescription.Texture2D(1, 1, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Sampled));
ShaderSetDescription shaderSet = new ShaderSetDescription(
new VertexLayoutDescription[]
{
new VertexLayoutDescription(
new VertexElementDescription("Position", VertexElementSemantic.TextureCoordinate, VertexElementFormat.Float2))
},
TestShaders.LoadVertexFragment(RF, "TexturedPoints"));
ResourceLayout layout = RF.CreateResourceLayout(new ResourceLayoutDescription(
new ResourceLayoutElementDescription("Ortho", ResourceKind.UniformBuffer, ShaderStages.Vertex),
new ResourceLayoutElementDescription("Tex", ResourceKind.TextureReadOnly, ShaderStages.Fragment),
new ResourceLayoutElementDescription("Smp", ResourceKind.Sampler, ShaderStages.Fragment)));
ResourceSet set;
if (useTextureView)
{
TextureView view = RF.CreateTextureView(sampledTexture);
set = RF.CreateResourceSet(new ResourceSetDescription(layout, orthoBuffer, view, GD.PointSampler));
}
else
{
set = RF.CreateResourceSet(new ResourceSetDescription(layout, orthoBuffer, sampledTexture, GD.PointSampler));
}
GraphicsPipelineDescription gpd = new GraphicsPipelineDescription(
BlendStateDescription.SingleOverrideBlend,
DepthStencilStateDescription.Disabled,
RasterizerStateDescription.Default,
PrimitiveTopology.PointList,
shaderSet,
layout,
framebuffer.OutputDescription);
Pipeline pipeline = RF.CreateGraphicsPipeline(ref gpd);
Vector2[] vertices = new Vector2[]
{
new Vector2(0.5f, 0.5f),
new Vector2(15.5f, 15.5f),
new Vector2(25.5f, 26.5f),
new Vector2(3.5f, 25.5f),
};
DeviceBuffer vb = RF.CreateBuffer(
new BufferDescription((uint)(Unsafe.SizeOf <Vector2>() * vertices.Length), BufferUsage.VertexBuffer));
GD.UpdateBuffer(vb, 0, vertices);
CommandList cl = RF.CreateCommandList();
for (int i = 0; i < 2; i++)
{
cl.Begin();
cl.SetFramebuffer(framebuffer);
cl.ClearColorTarget(0, RgbaFloat.Black);
cl.SetPipeline(pipeline);
cl.SetVertexBuffer(0, vb);
cl.SetGraphicsResourceSet(0, set);
// Modify an unrelated texture.
// This must have no observable effect on the next draw call.
RgbaFloat pink = RgbaFloat.Pink;
GD.UpdateTexture(shouldntBeSampledTexture,
(IntPtr)(&pink), (uint)Unsafe.SizeOf <RgbaFloat>(),
0, 0, 0,
1, 1, 1,
0, 0);
cl.Draw((uint)vertices.Length);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
}
cl.Begin();
cl.CopyTexture(target, staging);
cl.End();
GD.SubmitCommands(cl);
GD.WaitForIdle();
MappedResourceView <RgbaFloat> readView = GD.Map <RgbaFloat>(staging, MapMode.Read);
foreach (Vector2 vertex in vertices)
{
uint x = (uint)vertex.X;
uint y = (uint)vertex.Y;
if (!GD.IsUvOriginTopLeft || GD.IsClipSpaceYInverted)
{
y = framebuffer.Height - y - 1;
}
Assert.Equal(white, readView[x, y], RgbaFloatFuzzyComparer.Instance);
}
GD.Unmap(staging);
}
