check_interlace_type 3455 contrib/libtests/pngvalid.c    check_interlace_type(interlace_type);
check_interlace_type 3692 contrib/libtests/pngvalid.c    check_interlace_type(interlace_type);
check_interlace_type 3996 contrib/libtests/pngvalid.c    check_interlace_type(interlace_type);
check_interlace_type 4299 contrib/libtests/pngvalid.c    check_interlace_type(dp->interlace_type);