S_MASKS          2951 3rdparty/libpng/pngrutil.c             { S_MASKS(1,0), S_MASKS(2,0), S_MASKS(4,0) },
S_MASKS          2953 3rdparty/libpng/pngrutil.c             { S_MASKS(1,1), S_MASKS(2,1), S_MASKS(4,1) }