forked from AbleOS/ableos
29 lines
713 B
Rust
29 lines
713 B
Rust
#![no_std]
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extern crate alloc;
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use alloc::boxed::Box;
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use engine_internals::engine_startup;
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use pixel_format::Rgba64;
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// use core::fmt::Result;
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use core::result::Result;
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use rhai::{EvalAltResult, Scope};
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mod engine_internals;
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pub mod pixel_format;
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pub const SHADER: &str = include_str!("../shaders/simple.shade");
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pub fn evaluate_shader(x: usize, y: usize, pixel: Rgba64) -> Result<Rgba64, Box<EvalAltResult>> {
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let engine = engine_startup();
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let ast = engine.compile(SHADER)?;
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let mut scope = Scope::new();
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scope.push("PIXEL_RGBA", pixel);
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scope.push("PIXEL_X", x);
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scope.push("PIXEL_Y", y);
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let result: Rgba64 = engine.call_fn(&mut scope, &ast, "main", ())?;
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Ok(result)
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}
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