[ft] Use unfitted kerning if x_ppem is zero
diff --git a/src/hb-ft.cc b/src/hb-ft.cc
index 0589c9e..17c68df 100644
--- a/src/hb-ft.cc
+++ b/src/hb-ft.cc
@@ -158,7 +158,7 @@
}
static hb_position_t
-hb_ft_get_glyph_h_kerning (hb_font_t *font HB_UNUSED,
+hb_ft_get_glyph_h_kerning (hb_font_t *font,
void *font_data,
hb_codepoint_t left_glyph,
hb_codepoint_t right_glyph,
@@ -167,7 +167,8 @@
FT_Face ft_face = (FT_Face) font_data;
FT_Vector kerningv;
- if (FT_Get_Kerning (ft_face, left_glyph, right_glyph, FT_KERNING_DEFAULT, &kerningv))
+ FT_Kerning_Mode mode = font->x_ppem ? FT_KERNING_DEFAULT : FT_KERNING_UNFITTED;
+ if (FT_Get_Kerning (ft_face, left_glyph, right_glyph, mode, &kerningv))
return 0;
return kerningv.x;