forked from koniifer/ableos
58 lines
1.7 KiB
Rust
58 lines
1.7 KiB
Rust
use crate::pixel_format::{get_a, get_b, get_g, get_r, set_a, set_b, set_g, set_r};
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use crate::pixel_format::{rgba_div, Rgba64};
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use log::{debug, info};
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use rhai::Engine;
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use rhai::INT;
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pub fn engine_startup() -> Engine {
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let mut engine = Engine::new();
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engine.on_print(|x| info!("PRINTED FROM SHADER: {}", x));
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// Any function or closure that takes a '&str', an 'Option<&str>' and a 'Position' argument
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// can be used to override 'debug'.
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engine.on_debug(|x, src, pos| {
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let src = src.unwrap_or("unknown");
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debug!("SHADER DEBUG of {} at {:?}: {}", src, pos, x);
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});
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engine
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.register_type::<Rgba64>()
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.register_fn("RGBA", get_rgba_rhai)
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.register_fn("RGBA", get_rgba_from_int)
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.register_fn("RGBA", get_rgba_from_int)
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.register_fn("/", rgba_div);
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// .register_fn("*", rgba_mult)
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// .register_fn("+", rgba_add)
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// .register_fn("-", rgba_sub)
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// engine.register_global_module(RandomPackage::new().as_shared_module());
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engine
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}
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pub fn get_rgba_rhai(r: INT, g: INT, b: INT, a: INT) -> Rgba64 {
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let mut pixel = 0;
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pixel |= set_r(pixel, r as u8);
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pixel |= set_g(pixel, g as u8);
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pixel |= set_b(pixel, b as u8);
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pixel |= set_a(pixel, a as u8);
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pixel
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}
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pub fn get_rgba_from_int(pixel: INT) -> Rgba64 {
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let mut pixel = pixel as u64;
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let r = get_r(pixel.try_into().unwrap());
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let g = get_g(pixel.try_into().unwrap());
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let b = get_b(pixel.try_into().unwrap());
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let a = get_a(pixel.try_into().unwrap());
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pixel |= set_r(pixel, r as u8);
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pixel |= set_g(pixel, g as u8);
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pixel |= set_b(pixel, b as u8);
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pixel |= set_a(pixel, a as u8);
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pixel
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}
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