62 lines
2.3 KiB
Rust
62 lines
2.3 KiB
Rust
fn main() -> Result<(), Box<dyn std::error::Error>> {
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#[cfg(feature = "vulkan-renderer")]
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{
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let host_triple = std::env::var("HOST").unwrap();
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let target_triple = std::env::var("TARGET").unwrap();
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if host_triple != target_triple {
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// cross compile
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if !host_triple.contains("windows") && target_triple.contains("x86_64-pc-windows") {
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println!(
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"cargo:rustc-link-search={}",
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std::env::var("VULKAN_SDK_WIN")
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.expect("Could not find windows vulkan sdk path")
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);
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println!(
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"cargo:rustc-link-search={}",
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std::env::var("SHADERC_WIN").expect("Could not find windows shaderc path")
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);
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}
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}
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const SHADER_SRC_DIR: &str = "src/renderer/vulkan/shaders";
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const SHADER_OUT_DIR: &str = "shaders";
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println!("cargo:rerun-if-changed={}", SHADER_SRC_DIR);
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std::fs::create_dir_all(SHADER_OUT_DIR)?;
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for shader in std::fs::read_dir(SHADER_SRC_DIR)?.filter_map(|v| v.ok()) {
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if shader.file_type()?.is_file() {
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let in_path = shader.path();
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if in_path
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.extension()
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.is_some_and(|e| e.to_string_lossy() == "wgsl")
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{
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let out_path = format!(
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"{}/{}.spv",
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SHADER_OUT_DIR,
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in_path.file_stem().unwrap().to_string_lossy()
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);
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let module = naga::front::wgsl::parse_str(&std::fs::read_to_string(in_path)?)?;
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let info = naga::valid::Validator::new(Default::default(), Default::default())
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.validate(&module)?;
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let spv =
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naga::back::spv::write_vec(&module, &info, &Default::default(), None)?;
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let compiled =
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spv.iter()
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.fold(Vec::with_capacity(spv.len() * 4), |mut v, w| {
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v.extend_from_slice(&w.to_le_bytes());
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v
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});
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std::fs::write(out_path, compiled.as_slice())?;
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}
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}
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}
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}
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Ok(())
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}
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