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  1. Qt
  2. QTBUG-42674

FT font engine leaks cached hb_face objects

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    • Commits:
      0600f7d6299a21014f1b72d54fc6b23c02693204

      Description

      hb_face is a ref-counted object and every hb_face_reference() must be paired with hb_face_destroy() (via face_destroy_func); in contrary, HB-old's HB_Face isn't ref-counted object, so calling face_destroy_func() destroys the object.
      QFontEngineFT calls harfbuzzFace() to prepare HB's face object prior to reparenting it, so we're leaking hb_face object there.

      We should either not release the object returned by harfbuzzFace(), or introduce ref-counting for HB-old's HB_Face.

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        For Gerrit Dashboard: QTBUG-42674
        # Subject Branch Project Status CR V

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            Assignee:
            ritt.ks Konstantin Ritt
            Reporter:
            ritt.ks Konstantin Ritt
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