http://bugs.gentoo.org/show_bug.cgi?id=383799#c13 Upstream: http://www.avasys.jp/cgi-bin/lx/bbs/en/scanner-bbs/hyperbbs.cgi?mode=view;Code=5197 --- lib/pngstream.cc +++ lib/pngstream.cc @@ -76,7 +76,12 @@ set_error_handler (_png, _info); lib->write_flush (_png); +/* when not interlacing (ie, only one pass), number of rows is image height: _v_sz */ +#if PNG_LIBPNG_VER > 10499 + if (!_footer && _v_sz == lib->get_current_row_number(_png)) +#else if (!_footer && _png->num_rows == _png->flush_rows) +#endif { lib->write_end (_png, _info); _footer = true; @@ -161,6 +166,9 @@ funcsym (write_row); funcsym (write_flush); funcsym (write_end); +#if PNG_LIBPNG_VER > 10499 + funcsym (get_current_row_number); +#endif if (lib->access_version_number && lib->create_write_struct @@ -170,6 +178,9 @@ && lib->set_IHDR && lib->set_pHYs && lib->set_invert_mono +#if PNG_LIBPNG_VER > 10499 + && lib->get_current_row_number +#endif && lib->write_info && lib->write_row && lib->write_flush --- lib/pngstream.hh +++ lib/pngstream.hh @@ -108,6 +108,10 @@ png_structp); fundecl (void, write_end, png_structp, png_infop); +#if PNG_LIBPNG_VER > 10499 + fundecl (png_uint_32, get_current_row_number, + png_structp); +#endif #endif /* HAVE_PNG_H */ }; static png_lib_handle *lib;