[Webkit-unassigned] [Bug 92098] [GTK] Bring Harfbuzz-ng support to Gtk

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92098





--- Comment #7 from Martin Robinson <mrobinson at webkit.org>  2012-10-31 12:40:51 PST ---
Mystery solved (I hope). When the Fontconfig FontCache returns a fallback font, it returns a different font each time -- even if the Fontconfig pattern returns the same font. This is quite bad, as it means that we're keeping many duplicate copies of fallback fonts in the cache. I've fixed this locally and the results look a lot better.

The reason this was causing a problem for Harfbuzz was that HarfBuzzShaper saw each fallback font as a different font and created a separate text run for each character.

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