341694 - bring OSX text rendering to something usable

Status: RESOLVED FIXED

(Core :: Graphics, defect)

Description

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

OSX Cairo text rendering is totally broken right now; it needs to be brought into something usable wrt font selection and the like.

Comment 1

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Attachment: use ATSUI for text layout and rendering

This patch does just that.  It's probably one of the slowest ways to do this, but it does get many (if not all) complex scripts right, since we just trust ATSU for fallback font selection and layout.  This can be significantly optimized for Latin scripts, by caching font metrics and glyph availability in fonts and then doing our own layout of them instead of going through ATSU.  There's also some caching of font selection that can be done.

Comment 2

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Attachment: patch with missing files

Patch with missing gfxQuartzFontCache.{h,mm} files.

Comment 3

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Attachment: gfxQuartzCache patch to actually cache

This actually implements the Cache portion of gfxQuartzFontCache, instead of doing the lookup each time.

Comment 4

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

there are other bugs on the remaining mac text issues.