mm/include/color.h

#ifndef _COLOR_H_
#define _COLOR_H_

#include "PR/ultratypes.h"

// For checking the alpha bit in an RGBA16 pixel
#define RGBA16_PIXEL_OPAQUE 1

typedef struct {
    /* 0x0 */ u8 r;
    /* 0x1 */ u8 g;
    /* 0x2 */ u8 b;
} Color_RGB8; // size = 0x3

typedef struct {
    /* 0x0 */ u8 r;
    /* 0x1 */ u8 g;
    /* 0x2 */ u8 b;
    /* 0x3 */ u8 a;
} Color_RGBA8; // size = 0x4

typedef struct {
    /* 0x0 */ s16 r;
    /* 0x2 */ s16 g;
    /* 0x4 */ s16 b;
} Color_RGB16; // size = 0x6

// only use when necessary for alignment purposes
typedef union {
    struct {
        u8 r, g, b, a;
    };
    u32 rgba;
} Color_RGBA8_u32;

typedef struct {
    f32 r, g, b, a;
} Color_RGBAf;

typedef struct {
    u32 r, g, b, a;
} Color_RGBAu32;

typedef union {
    struct {
        u16 r : 5;
        u16 g : 5;
        u16 b : 5;
        u16 a : 1;
    };
    u16 rgba;
} Color_RGBA16;

#define RGBA8(r, g, b, a) ((((r) & 0xFF) << 24) | (((g) & 0xFF) << 16) | (((b) & 0xFF) << 8) | (((a) & 0xFF) << 0))

#endif