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#[derive(Debug, Clone, Copy, PartialEq, PartialOrd)]
pub struct Srgb {
pub r: f32,
pub g: f32,
pub b: f32,
}
impl From<crate::LinearRgb> for Srgb {
fn from(linear: crate::LinearRgb) -> Self {
let from_linear = |n: f32| {
if n <= 0.0031308 {
n * 12.92
} else {
n.powf(1.0 / 2.4) * 1.055 - 0.055
}
};
Self {
r: from_linear(linear.r),
g: from_linear(linear.g),
b: from_linear(linear.b),
}
}
}
impl crate::ColorSpace for Srgb {
const BLACK: Self = Self {
r: 0.0,
g: 0.0,
b: 0.0,
};
const WHITE: Self = Self {
r: 1.0,
g: 1.0,
b: 1.0,
};
fn in_bounds(self) -> bool {
crate::approx_in_range(self.r, 0.0..1.0)
&& crate::approx_in_range(self.g, 0.0..1.0)
&& crate::approx_in_range(self.b, 0.0..1.0)
}
}
impl crate::Hex for Srgb {
fn components(self) -> (f32, f32, f32) {
(self.r, self.g, self.b)
}
}
#[cfg(test)]
#[test]
fn hex() {
use crate::Hex;
let rgb = Srgb {
r: 1.0,
g: 0.25,
b: 1.0,
};
assert_eq!(rgb.hex(), 0xff40ff);
}