use super::{ColorComponentType, ColorDescriptor, ColorLayoutFormat};
#[repr(C)]
#[derive(Copy, Clone, Debug, PartialEq, Eq)]
pub struct RGBA8 {
pub r: u8,
pub g: u8,
pub b: u8,
pub a: u8,
}
impl RGBA8 {
pub const RED: RGBA8 = RGBA8::new(255, 0, 0, 255);
pub const PURPLE: RGBA8 = RGBA8::new(128, 0, 128, 255);
pub const BLUE: RGBA8 = RGBA8::new(0, 0, 255, 255);
pub const GREEN: RGBA8 = RGBA8::new(0, 255, 0, 255);
pub const YELLOW: RGBA8 = RGBA8::new(255, 255, 0, 255);
pub const ORANGE: RGBA8 = RGBA8::new(255, 164, 0, 255);
pub const MAGENTA: RGBA8 = RGBA8::new(255, 0, 255, 255);
pub const WHITE: RGBA8 = RGBA8::new(255, 255, 255, 255);
pub const BLACK: RGBA8 = RGBA8::new(0, 0, 0, 255);
pub const TRANSPARENT: RGBA8 = RGBA8::new(0, 0, 0, 0);
pub const fn new(red: u8, green: u8, blue: u8, alpha: u8) -> RGBA8 {
RGBA8 {
r: red,
g: green,
b: blue,
a: alpha,
}
}
pub fn from_f32(red: f32, green: f32, blue: f32, alpha: f32) -> RGBA8 {
RGBA8 {
r: (red * 255.0) as u8,
g: (green * 255.0) as u8,
b: (blue * 255.0) as u8,
a: (alpha * 255.0) as u8,
}
}
}
impl From<RGBA8> for (f32, f32, f32, f32) {
fn from(x: RGBA8) -> Self {
let r = (x.r as f32) / 255.0;
let g = (x.g as f32) / 255.0;
let b = (x.b as f32) / 255.0;
let a = (x.a as f32) / 255.0;
(r, g, b, a)
}
}
impl From<RGBA8> for [f32; 4] {
fn from(x: RGBA8) -> Self {
let r = (x.r as f32) / 255.0;
let g = (x.g as f32) / 255.0;
let b = (x.b as f32) / 255.0;
let a = (x.a as f32) / 255.0;
[r, g, b, a]
}
}
impl From<(f32, f32, f32, f32)> for RGBA8 {
fn from(x: (f32, f32, f32, f32)) -> Self {
let (r, g, b, a) = x;
Self::from_f32(r, g, b, a)
}
}
impl From<[f32; 4]> for RGBA8 {
fn from(x: [f32; 4]) -> Self {
let [r, g, b, a] = x;
Self::from_f32(r, g, b, a)
}
}
impl Default for RGBA8 {
fn default() -> Self {
Self {
r: 255,
g: 255,
b: 255,
a: 255,
}
}
}
impl ColorDescriptor for RGBA8 {
fn component_type() -> ColorComponentType {
ColorComponentType::U8
}
fn layout() -> ColorLayoutFormat {
ColorLayoutFormat::RGBA
}
}