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use core::ops::*;
use super::pixel::*;
use RGB;
use RGBA;
impl<T: Add> Add for RGB<T> {
type Output = RGB<<T as Add>::Output>;
#[inline(always)]
fn add(self, other: RGB<T>) -> Self::Output {
RGB {
r: self.r + other.r,
g: self.g + other.g,
b: self.b + other.b,
}
}
}
impl<T: Add, A: Add> Add<RGBA<T, A>> for RGBA<T, A> {
type Output = RGBA<<T as Add>::Output, <A as Add>::Output>;
#[inline(always)]
fn add(self, other: RGBA<T, A>) -> Self::Output {
RGBA {
r: self.r + other.r,
g: self.g + other.g,
b: self.b + other.b,
a: self.a + other.a,
}
}
}
impl<T: Sub> Sub for RGB<T> {
type Output = RGB<<T as Sub>::Output>;
#[inline(always)]
fn sub(self, other: RGB<T>) -> Self::Output {
RGB {
r: self.r - other.r,
g: self.g - other.g,
b: self.b - other.b,
}
}
}
impl<T: Sub, A: Sub> Sub<RGBA<T, A>> for RGBA<T, A> {
type Output = RGBA<<T as Sub>::Output, <A as Sub>::Output>;
#[inline(always)]
fn sub(self, other: RGBA<T, A>) -> Self::Output {
RGBA {
r: self.r - other.r,
g: self.g - other.g,
b: self.b - other.b,
a: self.a - other.a,
}
}
}
impl<T: Clone + Copy + Add> Add<T> for RGB<T>
where T: Add<Output=T> {
type Output = RGB<T>;
#[inline(always)]
fn add(self, r: T) -> Self::Output {
self.map(|l|l+r)
}
}
impl<T: Clone + Copy + Add> Add<T> for RGBA<T>
where T: Add<Output=T> {
type Output = RGBA<T>;
#[inline(always)]
fn add(self, r: T) -> Self::Output {
self.map(|l|l+r)
}
}
impl<T: Clone + Copy + Mul> Mul<T> for RGB<T>
where T: Mul<Output=T> {
type Output = RGB<T>;
#[inline(always)]
fn mul(self, r: T) -> Self::Output {
self.map(|l|l*r)
}
}
impl<T: Clone + Copy + Mul> Mul<T> for RGBA<T>
where T: Mul<Output=T> {
type Output = RGBA<T>;
#[inline(always)]
fn mul(self, r: T) -> Self::Output {
self.map(|l|l*r)
}
}
#[test]
fn test_math() {
assert_eq!(RGB::new(2,4,6), RGB::new(1,2,3) + RGB{r:1,g:2,b:3});
assert_eq!(RGB::new(2.,4.,6.), RGB::new(1.,3.,5.) + 1.);
assert_eq!(RGB::new(0.5,1.5,2.5), RGB::new(1.,3.,5.) * 0.5);
assert_eq!(RGBA::new_alpha(2u8,4,6,8u16), RGBA::new_alpha(1u8,2,3,4u16) + RGBA{r:1u8,g:2,b:3,a:4u16});
assert_eq!(RGBA::new(2i16,4,6,8), RGBA::new(1,3,5,7) + 1);
assert_eq!(RGBA::new(2,4,6,8), RGBA::new(1,2,3,4) * 2);
}