https://bugzilla.redhat.com/show_bug.cgi?id=1645763

            Bug ID: 1645763
           Summary: ClearType enablement: strong color fringing that is
                    not present in vanilla build from freetype git
           Product: Fedora
           Version: 29
         Component: freetype
          Assignee: [email protected]
          Reporter: [email protected]
        QA Contact: [email protected]
                CC: [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected]



Created attachment 1500899
  --> https://bugzilla.redhat.com/attachment.cgi?id=1500899&action=edit
Scrrenshot of package and git FreeType font rendering

Description of problem:
I usually compile from source to stay up to date. Tried the new
ClearType-enabled package and got strong color fringing that I don't see in
vanilla source builds.


Version-Release number of selected component (if applicable):
2.9.1-6


How reproducible:
1. Turn on subpixel rendering in GNOME Tweak Tools, restart GNOME shell and
look at fonts.
2. Compile freetype from upstream source and LD_PRELOAD it for Firefox, etc.


Actual results: See screenshot.zip -> package.png


Expected results: See screenshot.zip -> git.png


Also:
I don't think you need freetype-2.9-ftsmooth.patch. I don't even think you need
to define the SUBPIXEL_RENDERING option at all, since FT comes with a different
and maybe not patent encumbered subpixel rendering method by default and I
couldn't tell the difference in quickly switching screenshots.

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