bmp.h

#include <stdint.h>

// Aliases for common datatypes in C
typedef uint8_t BYTE;
typedef uint16_t WORD;
typedef uint32_t DWORD;
typedef int32_t LONG;

// BITMAPFILEHEADER
typedef struct {
    WORD  bfType;
    DWORD bfSize;
    WORD  bfReserved1;
    WORD  bfReserved2;
    DWORD bfOffBits;
} __attribute__((__packed__)) 
BITMAPFILEHEADER;

// CIEXYZ (color space struct)
typedef struct {
    LONG ciexyzX;
    LONG ciexyzY;
    LONG ciexyzZ;
} __attribute__((__packed__)) 
CIEXYZ;

// CIEXYZTRIPLE
typedef struct {
    CIEXYZ ciexyzRed;
    CIEXYZ ciexyzGreen;
    CIEXYZ ciexyzBlue;
} __attribute__((__packed__))
CIEXYZTRIPLE;

// BITMAPV5HEADER
typedef struct {
    DWORD        bV5Size;
    LONG         bV5Width;
    LONG         bV5Height;
    WORD         bV5Planes;
    WORD         bV5BitCount;
    DWORD        bV5Compression;
    DWORD        bV5SizeImage;
    LONG         bV5XPelsPerMeter;
    LONG         bV5YPelsPerMeter;
    DWORD        bV5ClrUsed;
    DWORD        bV5ClrImportant;
    DWORD        bV5RedMask;
    DWORD        bV5GreenMask;
    DWORD        bV5BlueMask;
    DWORD        bV5AlphaMask;
    DWORD        bV5CSType;
    CIEXYZTRIPLE bV5Endpoints;
    DWORD        bV5GammaRed;
    DWORD        bV5GammaGreen;
    DWORD        bV5GammaBlue;
    DWORD        bV5Intent;
    DWORD        bV5ProfileData;
    DWORD        bV5ProfileSize;
    DWORD        bV5Reserved;
} __attribute__((__packed__))
BITMAPV5HEADER;

// RGBQUAD
typedef struct {
    BYTE rgbBlue;
    BYTE rgbGreen;
    BYTE rgbRed;
    BYTE rgbReserved;
} __attribute__((__packed__)) 
RGBQUAD;