ImageUtils.hpp

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#pragma once
 
#include <cstdint>

constexpr int color_argb(uint8_t a, uint8_t r, uint8_t g, uint8_t b) {
    return (a << 24) | (r << 16) | (g << 8) | b;
}

constexpr int color_rgb(uint8_t r, uint8_t g, uint8_t b) {
    return color_argb(255, r, g, b);
}
 
constexpr uint8_t red_channel_from_argb_color(int color) {
    return (color >> 16) & 255;
}
constexpr uint8_t green_channel_from_argb_color(int color) {
    return (color >> 8) & 255;
}
constexpr uint8_t blue_channel_from_argb_color(int color) {
    return color & 255;
}