38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
use {
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crate::open,
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anyhow::{bail, Context},
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std::{io::Write, path::Path},
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};
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const ROOT: &str = "src/gfx_apis/vulkan/shaders";
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pub fn main() -> anyhow::Result<()> {
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println!("cargo:rerun-if-changed={}", ROOT);
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for shader in std::fs::read_dir(ROOT)? {
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let shader = shader?;
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let name = shader.file_name().to_string_lossy().into_owned();
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compile_shader(&name).context(name)?;
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}
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Ok(())
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}
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fn compile_shader(name: &str) -> anyhow::Result<()> {
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let stage = match Path::new(name)
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.extension()
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.and_then(|e| e.to_str())
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.unwrap_or("")
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{
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"frag" => shaderc::ShaderKind::Fragment,
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"vert" => shaderc::ShaderKind::Vertex,
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n => bail!("Unknown shader stage {}", n),
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};
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let src = std::fs::read_to_string(format!("{}/{}", ROOT, name))?;
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let compiler = shaderc::Compiler::new().unwrap();
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let binary = compiler
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.compile_into_spirv(&src, stage, name, "main", None)
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.unwrap();
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let mut file = open(&format!("{}.spv", name))?;
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file.write_all(binary.as_binary_u8())?;
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file.flush()?;
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Ok(())
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}
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