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[rs] Use implicit layout for hello-compute

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Dzmitry Malyshau
2021-03-15 11:21:42 -04:00
parent 23c5e83167
commit e80723aa12
1 changed files with 8 additions and 32 deletions
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40
wgpu/examples/hello-compute/main.rs
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@@ -89,25 +89,18 @@ async fn execute_gpu(numbers: Vec<u32>) -> Vec<u32> {
// It is to WebGPU what a descriptor set is to Vulkan.
// `binding` here refers to the `binding` of a buffer in the shader (`layout(set = 0, binding = 0) buffer`).
// Here we specifiy the layout of the bind group.
let bind_group_layout = device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
// A pipeline specifices the operation of a shader
// Instantiates the pipeline.
let compute_pipeline = device.create_compute_pipeline(&wgpu::ComputePipelineDescriptor {
label: None,
entries: &[wgpu::BindGroupLayoutEntry {
binding: 0, // The location
visibility: wgpu::ShaderStage::COMPUTE, // Which shader type in the pipeline this buffer is available to.
ty: wgpu::BindingType::Buffer {
ty: wgpu::BufferBindingType::Storage {
// Specifies if the buffer can only be read within the shader
read_only: false,
},
has_dynamic_offset: false,
min_binding_size: wgpu::BufferSize::new(4),
},
count: None,
}],
layout: None,
module: &cs_module,
entry_point: "main",
});
// Instantiates the bind group, once again specifying the binding of buffers.
let bind_group_layout = compute_pipeline.get_bind_group_layout(0);
let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
label: None,
layout: &bind_group_layout,
@@ -117,23 +110,6 @@ async fn execute_gpu(numbers: Vec<u32>) -> Vec<u32> {
}],
});
// A pipeline specifices the operation of a shader
// Here we specifiy the layout of the pipeline.
let pipeline_layout = device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: None,
bind_group_layouts: &[&bind_group_layout],
push_constant_ranges: &[],
});
// Instantiates the pipeline.
let compute_pipeline = device.create_compute_pipeline(&wgpu::ComputePipelineDescriptor {
label: None,
layout: Some(&pipeline_layout),
module: &cs_module,
entry_point: "main",
});
// A command encoder executes one or many pipelines.
// It is to WebGPU what a command buffer is to Vulkan.
let mut encoder =