---
source: wgsl_to_wgpu/src/lib.rs
---
pub const ENTRY_MAIN: &str = "main";
#[derive(Debug)]
pub struct FragmentEntry<const N: usize> {
pub entry_point: &'static str,
pub targets: [Option<wgpu::ColorTargetState>; N],
pub constants: Vec<(&'static str, f64)>,
}
pub fn fragment_state<'a, const N: usize>(
module: &'a wgpu::ShaderModule,
entry: &'a FragmentEntry<N>,
) -> wgpu::FragmentState<'a> {
wgpu::FragmentState {
module,
entry_point: Some(entry.entry_point),
targets: &entry.targets,
compilation_options: wgpu::PipelineCompilationOptions {
constants: &entry.constants,
..Default::default()
},
}
}
pub fn main_entry(targets: [Option<wgpu::ColorTargetState>; 0]) -> FragmentEntry<0> {
FragmentEntry {
entry_point: ENTRY_MAIN,
targets,
constants: Default::default(),
}
}
pub const SOURCE: &str = "@fragment fn main() {}";
pub fn create_shader_module(device: &wgpu::Device) -> wgpu::ShaderModule {
let source = std::borrow::Cow::Borrowed(SOURCE);
device.create_shader_module(wgpu::ShaderModuleDescriptor {
label: None,
source: wgpu::ShaderSource::Wgsl(source),
})
}
pub fn create_pipeline_layout(device: &wgpu::Device) -> wgpu::PipelineLayout {
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
label: None,
bind_group_layouts: &[],
immediate_size: 0,
})
}