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State of Text Behdad Esfahbod [email protected] http://behdad.org/text Rendering July 5th, 2009 Check the paper: http://behdad.org/text July 5th, 2009 Agenda • The Stack • Shapers • Shaper Consumers • Problems • Recent Advances • More Problems • Road Ahead July 5th, 2009 Meet the Stack • Pango • HarfBuzz • FriBidi • Fontconfig • FreeType July 5th, 2009 OpenType July 5th, 2009 HarfBuzz July 5th, 2009 Other Free Shapers • ICU • m17n • SIL Graphite July 5th, 2009 Consumers • GUI Toolkits • Web Browsers • Word Processors • Designer Tools • Font Design Tools • Terminal Emulators • Batch Doc Processors • TeX Engines July 5th, 2009 Excellence • Supported Font Formats • Configuration Mechanism • Transparent Font Fallback • Standard Compliance • Minority Scripts July 5th, 2009 Problems • Good Enough • Segregated Efforts July 5th, 2009 Segregated Efforts • Font packager's fault • Font configuration GUI • Vertical text • Text Layout Summit • unifont.org • Graphite and m17n July 5th, 2009 Recent Advances • Streamlining font packaging • Online font add/remove • Automatic font installation July 5th, 2009 Demo Time! July 5th, 2009 Online font add/remove 1. gnome-settings-daemon monitors 2. g-s-d rebuilds cache 3. g-s-d signals via XSETTINGS 4. GTK+ catches, drops Pango caches 5. GTK+ sends "theme-changed" July 5th, 2009 Automatic font installation 1. RPM detects font at pkg build time 2. RPM tags package using fc-query 3. PackgeKit installs GTK+ module 4. GTK+ overrides Pango default fontmap 5. PK receives font install request 6. Installed fonts are picked up July 5th, 2009 Major Problems • CJK Problem • Indic Problem • Latin Problem July 5th, 2009 Road Ahead • HarfBuzz: layout, API, merge • Subpixel rendering and positioning • Font chooser dialog • Font configurator • Font websites • Font viewer • Application fonts July 5th, 2009 Where is My Vote? July 5th, 2009 Q? July 5th, 2009.

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