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use crate::CHANNELS_IN_RGB;
#[derive(Clone, Copy)]
pub struct RawPixel {
pub value: u16,
pub row: usize,
pub column: usize,
}
#[derive(Clone, Copy)]
pub struct Pixel {
pub values: [u16; CHANNELS_IN_RGB],
pub row: usize,
pub column: usize,
}
pub trait RawPixelTransform {
fn apply(&mut self, pixel: RawPixel) -> u16;
}
impl<T: Fn(RawPixel) -> u16> RawPixelTransform for T {
fn apply(&mut self, pixel: RawPixel) -> u16 {
self(pixel)
}
}
macro_rules! impl_raw_pixel_transform {
($($idx:tt $t:tt),+) => {
impl<$($t,)+> RawPixelTransform for ($($t,)+)
where
$($t: RawPixelTransform,)+
{
fn apply(&mut self, mut pixel: RawPixel) -> u16 {
$(pixel.value = self.$idx.apply(pixel);)*
pixel.value
}
}
};
}
impl_raw_pixel_transform!(0 A);
impl_raw_pixel_transform!(0 A, 1 B);
impl_raw_pixel_transform!(0 A, 1 B, 2 C);
impl_raw_pixel_transform!(0 A, 1 B, 2 C, 3 D);
impl_raw_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E);
impl_raw_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F);
impl_raw_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F, 6 G);
impl_raw_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F, 6 G, 7 H);
pub trait PixelTransform {
fn apply(&mut self, pixel: Pixel) -> [u16; CHANNELS_IN_RGB];
}
impl<T: Fn(Pixel) -> [u16; CHANNELS_IN_RGB]> PixelTransform for T {
fn apply(&mut self, pixel: Pixel) -> [u16; CHANNELS_IN_RGB] {
self(pixel)
}
}
macro_rules! impl_pixel_transform {
($($idx:tt $t:tt),+) => {
impl<$($t,)+> PixelTransform for ($($t,)+)
where
$($t: PixelTransform,)+
{
fn apply(&mut self, mut pixel: Pixel) -> [u16; CHANNELS_IN_RGB] {
$(pixel.values = self.$idx.apply(pixel);)*
pixel.values
}
}
};
}
impl_pixel_transform!(0 A);
impl_pixel_transform!(0 A, 1 B);
impl_pixel_transform!(0 A, 1 B, 2 C);
impl_pixel_transform!(0 A, 1 B, 2 C, 3 D);
impl_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E);
impl_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F);
impl_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F, 6 G);
impl_pixel_transform!(0 A, 1 B, 2 C, 3 D, 4 E, 5 F, 6 G, 7 H);
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