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wry/compile-shaders/compile/src/main.rs
2025-09-17 14:23:38 +02:00

54 lines
1.8 KiB
Rust

use {
anyhow::{Context, anyhow, bail},
compile_shaders_core::{BIN, ROOT, update_hash},
shaderc::{CompileOptions, ResolvedInclude},
std::{fs::File, io::Write, path::Path},
};
fn main() -> anyhow::Result<()> {
compile("fill.frag")?;
compile("fill.vert")?;
compile("tex.vert")?;
compile("tex.frag")?;
compile("out.vert")?;
compile("out.frag")?;
compile("legacy/fill.frag")?;
compile("legacy/fill.vert")?;
compile("legacy/tex.vert")?;
compile("legacy/tex.frag")?;
update_hash()?;
Ok(())
}
fn compile(name: &str) -> anyhow::Result<()> {
let out = format!("{name}.spv").replace("/", "_");
compile_shader(name, &out).with_context(|| name.to_string())
}
fn compile_shader(name: &str, out: &str) -> anyhow::Result<()> {
let root = Path::new(ROOT).join(Path::new(name).parent().unwrap());
let read = |path: &str| std::fs::read_to_string(root.join(path));
let mut options = CompileOptions::new()?;
options.set_include_callback(|name, _, _, _| {
Ok(ResolvedInclude {
resolved_name: name.to_string(),
content: read(name).map_err(|e| anyhow!(e).to_string())?,
})
});
let stage = match Path::new(name)
.extension()
.and_then(|e| e.to_str())
.unwrap_or("")
{
"frag" => shaderc::ShaderKind::Fragment,
"vert" => shaderc::ShaderKind::Vertex,
n => bail!("Unknown shader stage {}", n),
};
let src = std::fs::read_to_string(format!("{}/{}", ROOT, name))?;
let compiler = shaderc::Compiler::new()?;
let binary = compiler.compile_into_spirv(&src, stage, name, "main", Some(&options))?;
let mut file = File::create(Path::new(BIN).join(out))?;
file.write_all(binary.as_binary_u8())?;
file.flush()?;
Ok(())
}