[graphite2] Add hb_graphite2_face_get_gr_face and hb_graphite2_font_get_gr_font
Based on patch from Martin Hosken. I believe it returns NULL if the
font doesn't have graphite tables, but have not tested.
diff --git a/src/hb-graphite2.h b/src/hb-graphite2.h
index 8122495..bea68f9 100644
--- a/src/hb-graphite2.h
+++ b/src/hb-graphite2.h
@@ -33,7 +33,13 @@
#define HB_GRAPHITE2_TAG_SILF HB_TAG('S','i','l','f')
-/* TODO add gr_font/face etc getters and other glue API */
+
+gr_face *
+hb_graphite2_face_get_gr_face (hb_face_t *face);
+
+gr_font *
+hb_graphite2_font_get_gr_font (hb_font_t *font);
+
HB_END_DECLS
