<html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-text-flowed" style="font-size: 16px;" lang="x-unicode"> On 06/20/2012 09:22 PM, Akira TAGOH wrote: <blockquote type="cite" style="color: #000000;">On Thu, Jun 21, 2012 at 5:11 AM, Infinality <a class="moz-txt-link-rfc2396E" href="mailto:infinality@infinality.net"><infinality@infinality.net></a> wrote: <blockquote type="cite" style="color: #000000;">As far as I know, there really isn't bytecode that is specific to Cleartype. Bytecode is bytecode. The Cleartype flag (or the phrase "designed for Cleartype") generally means that the font doesn't contain the legacy hacks used in fonts like Arial, Courier New, etc., which are problematic when being displayed with antialiasing on a TT rasterizer that is following specs. The subpixel hinting functionality works around the issues with the legacy fonts, while allowing modern fonts to render as though they are "designed for Cleartype". Or am I not understanding what you mean here? </blockquote> Well, the question was how it looks when rendering the text with mixing up "ClearType" fonts and legacy fonts, because it seems that there is/was? the case in Windows that one is smooth and one is jaggy when ClearType is turning on. As you said the above, I guess it won't happens? </blockquote> Well, it depends on what you mean by "legacy fonts". If you are talking about bitmap (non-tt) fonts then those would of course always render jaggy. Any ttf fonts with (semi-good) instructions should render with subpixel hinting under Freetype like they would with Windows w/Cleartype. (The goal is to render them similarly to the MS rasterizer, and potentially even better!) <blockquote type="cite" style="color: #000000;"> <blockquote type="cite" style="color: #000000;">The choices you get in Windows (as far as I know) are to have Cleartype on or off. In fontconfig this would correspond to the below configurations. A link to a corresponding image is above each configuration. (Don't pay attention to the text in it, because it's the same across all images): </blockquote> Thanks. that would be useful. it may be a good idea to add those configuration as reference in fontconfig. </blockquote> Yes, that might be worth mentioning somewhere. I know that some major distros like OpenSUSE are planning on using subpixel hinting by default now that it's in Freetype. Other distros have packages that are available too. More people will likely be using subpixel hinting now that it's in Freetype, so having documentation as to "what settings do what" might be good. If you need me to help you out with that, I'd be more than willing. I do have my git repo of "fontconfig-infinality" which contains TT fonts that I know work well with subpixel hinting. Perhaps that could be somehow incorporated into fontconfig itself, now that subpixel hinting is in Freetype?? Thanks, Erik </div> </body> </html>