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pub trait Color: Sync + Send {
fn name() -> &'static str;
fn channels() -> usize;
fn has_alpha() -> bool;
}
macro_rules! make_color {
($name:ident, $name_s:expr, $channels:expr, $alpha:expr) => {
#[cfg_attr(
feature = "ser",
derive(serde_derive::Serialize, serde_derive::Deserialize)
)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub struct $name;
impl Color for $name {
fn channels() -> usize {
$channels
}
fn has_alpha() -> bool {
$alpha
}
fn name() -> &'static str {
$name_s
}
}
};
}
make_color!(Gray, "gray", 1, false);
make_color!(Rgb, "rgb", 3, false);
make_color!(Bgr, "bgr", 3, false);
make_color!(RgbPacked, "rgb_packed", 1, false);
make_color!(Rgba, "rgba", 4, true);
make_color!(Bgra, "bgra", 4, true);
make_color!(Cmyk, "cmyk", 4, false);
make_color!(Yuv, "yuv", 3, false);