在 2012-8-28 下午9:23， <pgajdos@suse.cz>写道：
And intinality subpixel hinting algorithm in this patchset isn't patented until 2019? If yes, this is completely useless for me.
http://lists.freedesktop.org/archives/fontconfig/2012-June/004177.html http://lists.freedesktop.org/archives/fontconfig/2012-June/004178.html
Petr
The answer is no. It's not patented from 2010. Let's understand the case in common sense and technically. the common sense is infinality comes after 2010. so at least the algorithm it use is not patented. or its author goes into jail before us. technically, when its early release, I have to manually add the codes into freetype source code to remake an openSUSE patch...it's a very bad memory...but luckily I found its author just modify freetype's sub-pixel rendering a little bit for some fonts. eg render-y-direction-only instead of x and y. there's no new algorithm introduced, its just a freetype's autohint technology variant. this patch only applies on specific sets of fonts. if your fonts are not in the list. you are actually using freetype. freetype and most of the distros dont include it by default.is because its fonts list focus on proprietary fonts from MS and Apple which dont be on linux distros thus not the type of freetype and linux distros. it's nothing related to patent. since freetype also starts using its autohint in our own freetype package. And the color stuff patent didnt exist in infinality at all if I remember it correctly. because I dont think I saw any other color except for the common word RGB in its source.will check it again tomorrow. Anyway in short you guys can take it as a patch set that patch nothing to freetype using the same technology freetype uses. because the English.fonts it supports are mainly the long known bad ones like Arial in fontconfig tweak world. you have already have better ones like liberation or google.fonts. unless you decided to use Apple's fonts like monaco. But it will improve a lot for CJK fonts. as you may know, we have a lot of characters. each of them needs design. so open source community are in fact not able to provide good fonts. And free rendering solution always be bad on proprietary fonts. That's why we need it and I notice it because seems it's the only fix for such gap by now Marguerite -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org