PNG_ALL_FILTERS  1284 contrib/libtests/makepng.c    unsigned int filters = PNG_ALL_FILTERS;
PNG_ALL_FILTERS  1459 contrib/libtests/makepng.c    if (filters == PNG_ALL_FILTERS)
PNG_ALL_FILTERS  3828 contrib/libtests/pngvalid.c                   nfilter >= PNG_FILTER_VALUE_LAST ? PNG_ALL_FILTERS : nfilter);
PNG_ALL_FILTERS  1005 pngwrite.c           switch (filters & (PNG_ALL_FILTERS | 0x07))
PNG_ALL_FILTERS   912 pngwutil.c              png_ptr->do_filter = PNG_ALL_FILTERS;
PNG_ALL_FILTERS  2341 pngwutil.c       if (png_ptr->row_number == 0 && filter_to_do == PNG_ALL_FILTERS)