A year after Font Validator 2.0, I have finished testing what is to be 2.1 on all the 3283 libre fonts shipped with Fedora 26. However, my main dev computer went out of action soon after, before I can upload the test results somewhere or tag the release; so people who want it ( googlefonts certainly does, see https://github.com/googlefonts/fontbakery/issues/1335 ), please just build from my git master.
The widest functionality is offered by running it under wine, actually(on Linux or Mac OS X). Below is the release notes. As I don't have the test results with me, I can only write from memory: out of the 3283 fonts shipped by fedora 26 ( a slightly larger number than fedora 24 for which FontVal 2.0 was tested against), about 139x + 149x are uninteresting CFF fonts - which the hinting test skips, and those that passes - I can't remember which is which, but that adds up to 288x fonts. 394 have some degree of problems with their hinting instructions; this is about the same as last year, so obviously this needs to be better publicised. One was a bad packaging of an zero-length file ( filed as https://bugzilla.redhat.com/show_bug.cgi?id=1473437 ). ------- Font Validator is a tool for testing fonts prior to release. It was initially developed by Microsoft, to ensure that fonts meet Microsoft's high quality standards and perform exceptionally well on Microsoft's platform. In 2015 the source code was published under the MIT license ([see release discussion](http://typedrawers.com/discussion/1222/microsoft-font-validato r-lives)) Most (only?) active development happens at http://github.com/HinTak/Font-Validator . FontVal 2.1 =========== - Backend b70+10.5, based on FreeType 2.8+ (VER-2-8-73-g38bdf22bf) - 16 Errors/Warnings in 1.0 which has no FreeType equivalent are implemented. This includes incomplete conditionals (e.g. IF without THEN) and maths overflows, etc. - 15 FreeType-specific additions are added. This includes endless loops and backward jumps, etc. - C Python wrapper available ( https://github.com/HinTak/freetype-py fontval-diag branch ). Perl wrapper in dev. - Robustness: still produce a report for some seriously buggy fonts - Speed/Resources improvements: - avoid unnecessary repeated processing of identical EBDT/glyf tables and rasterization for TTCs (down from half-days to an hour or two in some cases) - much smaller memory foot-prints for EBDT check (down from 15 to 20+ GB RAM to 1 or 2 GB in some extreme cases) - Windows-only problem fixed: can now accept non-ascii font names (2.0 did not, 1.0 did). - New opentype tables supported: meta (partial) - glyf table: cope with broken contours with hair pins, and extremely tight loops etc and correctly warn those. - DSIG table: supports stronger cryptographic digest algorithms (Apparently Adobe started signing with those). correct previous mis-diagnosis of very old TTCs' signature. - A lot of misc documentation updates. - Known Caveats: - E6053 (Value exceeds capacity of 2 byte number) also warns on values exceeding Fixed 2.14 (FontVal 1.0 did not). - W6028 (number of twilight points unreasonably large) too frequent/noisy. - W6029 (Setting the loop variable to zero is an error) may be withdrawn later as ttfauthint does it and there is no known problem, despite some apple and macrosoft docs saying so. - The check for maths overflows in hinting instructions requires gcc 5+ to build, so it is not offered on the Mac OS X backend for the time being. FontVal 2.0 , Jul 17 2016 =========== - backend b54, based on FreeType 2.6.4 FontVal 1.1, Apr 07 2009 =========== - Microsoft released to Github on Nov 11 2015; incomplete FontVal 1.0 , Jul 10 2003 =========== - last known Microsoft's proprietary binary _______________________________________________ CREATE mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/create
