Imported Upstream version 1.4.6

[platform/upstream/harfbuzz.git] / src / hb-ot-layout.h

diff --git a/src/hb-ot-layout.h b/src/hb-ot-layout.h
index eb23d45..9861f0f 100644 (file)
--- a/src/hb-ot-layout.h
+++ b/src/hb-ot-layout.h
@@ -95,6 +95,7 @@ hb_ot_layout_get_ligature_carets (hb_font_t      *font,
 #define HB_OT_LAYOUT_NO_SCRIPT_INDEX           0xFFFFu
 #define HB_OT_LAYOUT_NO_FEATURE_INDEX          0xFFFFu
 #define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX    0xFFFFu
+#define HB_OT_LAYOUT_NO_VARIATIONS_INDEX       0xFFFFFFFFu
 
 HB_EXTERN unsigned int
 hb_ot_layout_table_get_script_tags (hb_face_t    *face,
@@ -236,6 +237,24 @@ Xhb_ot_layout_lookup_enumerate_sequences (hb_face_t    *face,
                                         void         *user_data);
 #endif
 
+/* Variations support */
+
+HB_EXTERN hb_bool_t
+hb_ot_layout_table_find_feature_variations (hb_face_t    *face,
+                                           hb_tag_t      table_tag,
+                                           const int    *coords,
+                                           unsigned int  num_coords,
+                                           unsigned int *variations_index /* out */);
+
+HB_EXTERN unsigned int
+hb_ot_layout_feature_with_variations_get_lookups (hb_face_t    *face,
+                                                 hb_tag_t      table_tag,
+                                                 unsigned int  feature_index,
+                                                 unsigned int  variations_index,
+                                                 unsigned int  start_offset,
+                                                 unsigned int *lookup_count /* IN/OUT */,
+                                                 unsigned int *lookup_indexes /* OUT */);
+
 
 /*
  * GSUB