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| author | Robert Pluim <rpluim@gmail.com> | 2020-01-24 14:11:44 +0100 |
|---|---|---|
| committer | Robert Pluim <rpluim@gmail.com> | 2020-03-02 09:59:34 +0100 |
| commit | fe1a447d52f548441d19af580ed11ef56d4459d2 (patch) | |
| tree | baa0419db5d8a8b7605c80b55cefe6fbefc0d7f6 /lisp/emacs-lisp/eldoc.el | |
| parent | b42b894d1def7180ab715615116fe6af65b76bd8 (diff) | |
| download | emacs-fe1a447d52f548441d19af580ed11ef56d4459d2.tar.gz emacs-fe1a447d52f548441d19af580ed11ef56d4459d2.tar.bz2 emacs-fe1a447d52f548441d19af580ed11ef56d4459d2.zip | |
Don't attempt to cache glyph metrics for FONT_INVALID_CODE
This was causing massive slowdown in redisplay when eg #xfe0f
(VARIATION SELECTOR-16) was present, as the cache ended up very large,
unused, and being recreated on every call to font_fill_lglyph_metrics
(Bug#39133).
* src/composite.c (fill_gstring_body): Hoist FONT_OBJECT_P check out
of loop. Calculate glyph code and check for FONT_INVALID_CODE before
calling font_fill_lglyph_metrics. Pass glyph code to it.
* src/font.c (font_fill_lglyph_metrics): Add code parameter, move
glyph code calculation up the call stack into fill_gstring_body.
* src/font.h: Adjust font_fill_lglyph_metrics prototype.
Diffstat (limited to 'lisp/emacs-lisp/eldoc.el')
0 files changed, 0 insertions, 0 deletions