const int RGBA16F = 0;
const int RGB16F = 0;

const int RGBA16 = 1;
const int RGB16 = 1;

const int RGBA8  = 2;
const int RGB8  = 2;

const int RG16F  = 3;

const int RGBA32F = 4;

const int R11F_G11F_B10F = 5;