1 files changed, 45 insertions, 1 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-subset.h b/src/3rdparty/harfbuzz-ng/src/hb-subset.h
index 1c65a4da1c..a2799d91e8 100644
--- a/src/3rdparty/harfbuzz-ng/src/hb-subset.h
+++ b/src/3rdparty/harfbuzz-ng/src/hb-subset.h
@@ -40,6 +40,15 @@ HB_BEGIN_DECLS
 typedef struct hb_subset_input_t hb_subset_input_t;
 
 /**
+ * hb_subset_plan_t:
+ *
+ * Contains information about how the subset operation will be executed.
+ * Such as mappings from the old glyph ids to the new ones in the subset.
+ */
+
+typedef struct hb_subset_plan_t hb_subset_plan_t;
+
+/**
  * hb_subset_flags_t:
  * @HB_SUBSET_FLAGS_DEFAULT: all flags at their default value of false.
  * @HB_SUBSET_FLAGS_NO_HINTING: If set hinting instructions will be dropped in
@@ -124,7 +133,7 @@ hb_subset_input_set_user_data (hb_subset_input_t  *input,
 
 HB_EXTERN void *
 hb_subset_input_get_user_data (const hb_subset_input_t *input,
-			       hb_user_data_key_t	   *key);
+			       hb_user_data_key_t      *key);
 
 HB_EXTERN hb_set_t *
 hb_subset_input_unicode_set (hb_subset_input_t *input);
@@ -145,6 +154,41 @@ hb_subset_input_set_flags (hb_subset_input_t *input,
 HB_EXTERN hb_face_t *
 hb_subset_or_fail (hb_face_t *source, const hb_subset_input_t *input);
 
+HB_EXTERN hb_face_t *
+hb_subset_plan_execute_or_fail (hb_subset_plan_t *plan);
+
+HB_EXTERN hb_subset_plan_t *
+hb_subset_plan_create_or_fail (hb_face_t                 *face,
+                               const hb_subset_input_t   *input);
+
+HB_EXTERN void
+hb_subset_plan_destroy (hb_subset_plan_t *plan);
+
+HB_EXTERN const hb_map_t*
+hb_subset_plan_old_to_new_glyph_mapping (const hb_subset_plan_t *plan);
+
+HB_EXTERN const hb_map_t*
+hb_subset_plan_new_to_old_glyph_mapping (const hb_subset_plan_t *plan);
+
+HB_EXTERN const hb_map_t*
+hb_subset_plan_unicode_to_old_glyph_mapping (const hb_subset_plan_t *plan);
+
+
+HB_EXTERN hb_subset_plan_t *
+hb_subset_plan_reference (hb_subset_plan_t *plan);
+
+HB_EXTERN hb_bool_t
+hb_subset_plan_set_user_data (hb_subset_plan_t   *plan,
+                              hb_user_data_key_t *key,
+                              void               *data,
+                              hb_destroy_func_t   destroy,
+                              hb_bool_t	          replace);
+
+HB_EXTERN void *
+hb_subset_plan_get_user_data (const hb_subset_plan_t *plan,
+                              hb_user_data_key_t     *key);
+
+
 HB_END_DECLS
 
 #endif /* HB_SUBSET_H */