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Allow turning HarfBuzz off at run time

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Useful for comparing the shaping result with that of m17n.
This commit is contained in:
Khaled Hosny 2018-06-05 12:34:04 +02:00
parent a2bea377c7
commit 9014e05fcb
1 changed files with 12 additions and 7 deletions
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19
src/ftfont.c
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@ -2784,14 +2784,19 @@ ftfont_shape (Lisp_Object lgstring)
struct font *font = CHECK_FONT_GET_OBJECT (LGSTRING_FONT (lgstring));
struct ftfont_info *ftfont_info = (struct ftfont_info *) font;
#ifdef HAVE_HARFBUZZ
return ftfont_shape_by_hb (lgstring, ftfont_info->ft_size->face,
&ftfont_info->matrix);
#else
OTF *otf = ftfont_get_otf (ftfont_info);
if (getenv ("EMACS_NO_HARFBUZZ") == NULL)
{
return ftfont_shape_by_hb (lgstring, ftfont_info->ft_size->face,
&ftfont_info->matrix);
}
else
#endif /* HAVE_HARFBUZZ */
{
OTF *otf = ftfont_get_otf (ftfont_info);
return ftfont_shape_by_flt (lgstring, font, ftfont_info->ft_size->face, otf,
&ftfont_info->matrix);
#endif
return ftfont_shape_by_flt (lgstring, font, ftfont_info->ft_size->face,
otf, &ftfont_info->matrix);
}
}
#endif /* defined HAVE_M17N_FLT || defined HAVE_HARFBUZZ */