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 Dispose_Texture()
{
Texture t = RF.CreateTexture(TextureDescription.Texture2D(1, 1, 1, 1, PixelFormat.R32_G32_B32_A32_Float, TextureUsage.Sampled));
TextureView tv = RF.CreateTextureView(t);
GD.WaitForIdle(); // Required currently by Vulkan backend.
tv.Dispose();
Assert.True(tv.IsDisposed);
Assert.False(t.IsDisposed);
t.Dispose();
Assert.True(t.IsDisposed);
}
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 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 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);
}