Update harfbuzz-ng to 1a5a91dc0d8bf4b72a2f22dc6300b06ad7000b79.

third_party/harfbuzz-ng/src/hb-ot-layout.h

 /*
- * Copyright (C) 2007,2008,2009  Red Hat, Inc.
+ * Copyright © 2007,2008,2009  Red Hat, Inc.
  *
  *  This is part of HarfBuzz, a text shaping library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
  * all copies of this software.
  *
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
@@ skipping 39 matching lines @@
 unsigned int
 hb_ot_layout_get_attach_points (hb_face_t      *face,
                                 hb_codepoint_t  glyph,
                                 unsigned int    start_offset,
                                 unsigned int   *point_count /* IN/OUT */,
                                 unsigned int   *point_array /* OUT */);
 
 /* Ligature caret positions */
 unsigned int
 hb_ot_layout_get_ligature_carets (hb_font_t      *font,
-                                  hb_face_t      *face,
                                   hb_direction_t  direction,
                                   hb_codepoint_t  glyph,
                                   unsigned int    start_offset,
                                   unsigned int   *caret_count /* IN/OUT */,
-                                  int            *caret_array /* OUT */);
+                                  hb_position_t  *caret_array /* OUT */);
 
 
 /*
  * GSUB/GPOS feature query and enumeration interface
  */
 
 #define HB_OT_LAYOUT_NO_SCRIPT_INDEX            ((unsigned int) 0xFFFF)
 #define HB_OT_LAYOUT_NO_FEATURE_INDEX           ((unsigned int) 0xFFFF)
 #define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX     ((unsigned int) 0xFFFF)
 
 unsigned int
 hb_ot_layout_table_get_script_tags (hb_face_t    *face,
                                     hb_tag_t      table_tag,
                                     unsigned int  start_offset,
                                     unsigned int *script_count /* IN/OUT */,
                                     hb_tag_t     *script_tags /* OUT */);
 
 hb_bool_t
 hb_ot_layout_table_find_script (hb_face_t    *face,
                                 hb_tag_t      table_tag,
                                 hb_tag_t      script_tag,
                                 unsigned int *script_index);
 
 /* Like find_script, but takes zero-terminated array of scripts to test */
 hb_bool_t
 hb_ot_layout_table_choose_script (hb_face_t      *face,
                                   hb_tag_t        table_tag,
                                   const hb_tag_t *script_tags,
-                                  unsigned int   *script_index);
+                                  unsigned int   *script_index,
+                                  hb_tag_t       *chosen_script);
 
 unsigned int
 hb_ot_layout_table_get_feature_tags (hb_face_t    *face,
                                      hb_tag_t      table_tag,
                                      unsigned int  start_offset,
                                      unsigned int *feature_count /* IN/OUT */,
                                      hb_tag_t     *feature_tags /* OUT */);
 
 unsigned int
 hb_ot_layout_script_get_language_tags (hb_face_t    *face,
@@ skipping 52 matching lines @@
                                          unsigned int *lookup_indexes /* OUT */);
 
 
 /*
  * GSUB
  */
 
 hb_bool_t
 hb_ot_layout_has_substitution (hb_face_t *face);
 
+/* Should be called before all the substitute_lookup's are done. */
+void
+hb_ot_layout_substitute_start (hb_buffer_t  *buffer);
+
 hb_bool_t
 hb_ot_layout_substitute_lookup (hb_face_t    *face,
                                 hb_buffer_t  *buffer,
                                 unsigned int  lookup_index,
                                 hb_mask_t     mask);
 
+/* Should be called after all the substitute_lookup's are done */
+void
+hb_ot_layout_substitute_finish (hb_buffer_t  *buffer);
+
 /*
  * GPOS
  */
 
 hb_bool_t
 hb_ot_layout_has_positioning (hb_face_t *face);
 
+/* Should be called before all the position_lookup's are done.  Resets positions to zero. */
+void
+hb_ot_layout_position_start (hb_buffer_t  *buffer);
+
 hb_bool_t
 hb_ot_layout_position_lookup (hb_font_t    *font,
-                              hb_face_t    *face,
                               hb_buffer_t  *buffer,
                               unsigned int  lookup_index,
                               hb_mask_t     mask);
 
 /* Should be called after all the position_lookup's are done */
 void
 hb_ot_layout_position_finish (hb_buffer_t  *buffer);
 
 
 HB_END_DECLS
 
 #endif /* HB_OT_LAYOUT_H */