static const uint8_t g_etc1_mod_tabs[256][8] = {
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,1,1,},
{0,0,0,0,0,0,0,1,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,0,},
{0,0,0,0,0,0,0,1,},
{0,0,0,0,0,0,1,1,},
{0,0,0,0,0,1,1,1,},
{0,0,0,0,0,1,1,1,},
{0,0,0,0,1,1,1,1,},
{0,0,0,0,1,1,1,1,},
{0,0,0,0,1,1,1,1,},
{0,0,0,0,1,1,1,1,},
{0,0,0,1,1,1,1,1,},
{0,0,0,1,1,1,1,1,},
{0,0,0,1,1,1,1,1,},
{0,0,0,1,1,1,1,2,},
{0,0,0,1,1,1,2,2,},
{0,0,0,1,1,1,2,2,},
{0,0,0,1,1,2,2,2,},
{0,0,1,1,1,2,2,2,},
{0,0,1,1,1,2,2,2,},
{0,0,1,1,1,2,2,2,},
{0,0,1,1,1,2,2,2,},
{0,0,1,1,2,2,2,2,},
{0,0,1,1,2,2,2,2,},
{0,0,1,1,2,2,2,2,},
{0,0,1,1,2,2,2,2,},
{0,0,1,1,2,2,2,2,},
{0,0,1,1,2,2,2,3,},
{0,0,1,1,2,2,3,3,},
{0,0,1,2,2,2,3,3,},
{0,0,1,2,2,2,3,3,},
{0,0,1,2,2,2,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,2,3,3,3,},
{0,1,1,2,3,3,3,3,},
{0,1,1,2,3,3,3,3,},
{0,1,1,2,3,3,3,3,},
{0,1,2,2,3,3,3,3,},
{0,1,2,2,3,3,3,4,},
{0,1,2,2,3,3,3,4,},
{0,1,2,2,3,3,4,4,},
{0,1,2,2,3,3,4,4,},
{0,1,2,2,3,3,4,4,},
{0,1,2,2,3,3,4,4,},
{0,1,2,2,3,3,4,4,},
{0,1,2,2,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,3,4,4,4,},
{0,1,2,3,4,4,4,4,},
{0,1,2,3,4,4,4,5,},
{0,1,2,3,4,4,4,5,},
{0,1,2,3,4,4,4,5,},
{0,1,2,3,4,4,5,5,},
{0,1,2,3,4,4,5,5,},
{0,1,2,3,4,4,5,5,},
{0,1,2,3,4,4,5,5,},
{0,2,2,3,4,4,5,5,},
{0,2,2,3,4,4,5,5,},
{0,2,2,3,4,4,5,5,},
{0,2,3,3,4,5,5,5,},
{0,2,3,3,4,5,5,5,},
{0,2,3,3,4,5,5,5,},
{0,2,3,3,4,5,5,5,},
{1,2,3,3,4,5,5,5,},
{1,2,3,3,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,5,},
{1,2,3,4,4,5,5,6,},
{1,2,3,4,5,5,5,6,},
{1,2,3,4,5,5,5,6,},
{1,2,3,4,5,5,5,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,5,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,3,4,5,6,6,6,},
{1,2,4,4,5,6,6,6,},
{1,2,4,4,5,6,6,6,},
{1,2,4,4,5,6,6,6,},
{1,2,4,4,5,6,6,6,},
{1,2,4,5,5,6,6,6,},
{1,2,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,5,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,6,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,6,7,},
{1,3,4,5,6,6,7,7,},
{1,3,4,5,6,6,7,7,},
{1,3,4,5,6,6,7,7,},
{1,3,4,5,6,6,7,7,},
{1,3,4,5,6,6,7,7,},
{1,3,4,6,6,6,7,7,},
{1,3,5,6,6,6,7,7,},
{1,3,5,6,6,6,7,7,},
{1,3,5,6,6,6,7,7,},
{2,3,5,6,6,6,7,7,},
{2,3,5,6,6,6,7,7,},
{2,3,5,6,6,6,7,7,},
{2,3,5,6,6,6,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,3,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,6,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,5,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,4,6,6,7,7,7,7,},
{2,5,6,6,7,7,7,7,},
{2,5,6,6,7,7,7,7,},
{2,5,6,6,7,7,7,7,},
{2,5,6,6,7,7,7,7,},
{2,5,6,6,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,},
{2,5,6,7,7,7,7,7,}
};