[cairo-bugs] [Bug 105035] New: Fails to load glyphs from bitmap-only font and NO_HINTING

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Feb 10 18:26:39 UTC 2018


            Bug ID: 105035
           Summary: Fails to load glyphs from bitmap-only font and
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: freetype font backend
          Assignee: david at freetype.org
          Reporter: freedesktop at behdad.org
        QA Contact: cairo-bugs at cairographics.org

As reported in:


Looks like if a font is bitmap-only, and NO_HINTING is requested, we fail to
load the glyphs.  Checking the code I see that is indeed the case in the
FcPattern codepath:

↦       /* Force embedded bitmaps off if no hinting requested */ 
↦       if (ft_options.base.hint_style == CAIRO_HINT_STYLE_NONE) 
↦         bitmap = FcFalse; 

↦       if (!bitmap) 
↦           ft_options.load_flags |= FT_LOAD_NO_BITMAP; 

The fact that it's only done in that codepath is arbitrary to begin with. 
Probably need to move somewhere closer to the actual glyph loading, and
excepted if the FT_Face has no outlines.

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