ableos/shadeable/src/lib.rs
2022-04-13 00:50:01 +02:00

27 lines
649 B
Rust

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