color.h

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#pragma once
#include <stdint.h>

typedef uint32_t pix_color_t;

#define PIX_COLOR_RED 0xFF0000FFu
#define PIX_COLOR_GREEN 0x00FF00FFu
#define PIX_COLOR_BLUE 0x0000FFFFu
#define PIX_COLOR_WHITE 0xFFFFFFFFu
#define PIX_COLOR_BLACK 0x000000FFu

#define PIX_COLOR_RGBA(r, g, b, a)                                            \
  ((pix_color_t)(((uint32_t)(uint8_t)(r) << 24) |                            \
                ((uint32_t)(uint8_t)(g) << 16) |                            \
                ((uint32_t)(uint8_t)(b) << 8) |                              \
                (uint32_t)(uint8_t)(a)))

#define PIX_COLOR_RGB(r, g, b) PIX_COLOR_RGBA(r, g, b, 0xFFu)

static inline uint8_t pix_color_r(pix_color_t color) {
  return (uint8_t)(color >> 24);
}

static inline uint8_t pix_color_g(pix_color_t color) {
  return (uint8_t)(color >> 16);
}

static inline uint8_t pix_color_b(pix_color_t color) {
  return (uint8_t)(color >> 8);
}

static inline uint8_t pix_color_a(pix_color_t color) {
  return (uint8_t)color;
}