Roll HarfBuzz to 1.2.6

third_party/harfbuzz-ng/src/hb-font.h

 /*
  * Copyright © 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.
@@ skipping 98 matching lines @@
 
 /* func types */
 
 typedef hb_bool_t (*hb_font_get_font_extents_func_t) (hb_font_t *font, void *font_data,
                                                        hb_font_extents_t *metrics,
                                                        void *user_data);
 typedef hb_font_get_font_extents_func_t hb_font_get_font_h_extents_func_t;
 typedef hb_font_get_font_extents_func_t hb_font_get_font_v_extents_func_t;
 
 
-typedef hb_bool_t (*hb_font_get_glyph_func_t) (hb_font_t *font, void *font_data,
-                                               hb_codepoint_t unicode, hb_codepoint_t variation_selector,
-                                               hb_codepoint_t *glyph,
-                                               void *user_data);
+typedef hb_bool_t (*hb_font_get_nominal_glyph_func_t) (hb_font_t *font, void *font_data,
+                                                       hb_codepoint_t unicode,
+                                                       hb_codepoint_t *glyph,
+                                                       void *user_data);
+typedef hb_bool_t (*hb_font_get_variation_glyph_func_t) (hb_font_t *font, void *font_data,
+                                                         hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+                                                         hb_codepoint_t *glyph,
+                                                         void *user_data);
 
 
 typedef hb_position_t (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, void *font_data,
                                                            hb_codepoint_t glyph,
                                                            void *user_data);
 typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_h_advance_func_t;
 typedef hb_font_get_glyph_advance_func_t hb_font_get_glyph_v_advance_func_t;
 
 typedef hb_bool_t (*hb_font_get_glyph_origin_func_t) (hb_font_t *font, void *font_data,
                                                       hb_codepoint_t glyph,
@@ skipping 57 matching lines @@
  *
  *
  * Since: 1.1.2
  **/
 HB_EXTERN void
 hb_font_funcs_set_font_v_extents_func (hb_font_funcs_t *ffuncs,
                                        hb_font_get_font_v_extents_func_t func,
                                        void *user_data, hb_destroy_func_t destroy);
 
 /**
- * hb_font_funcs_set_glyph_func:
+ * hb_font_funcs_set_nominal_glyph_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 0.9.2
+ * Since: 1.2.3
  **/
 HB_EXTERN void
-hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
-                              hb_font_get_glyph_func_t func,
-                              void *user_data, hb_destroy_func_t destroy);
+hb_font_funcs_set_nominal_glyph_func (hb_font_funcs_t *ffuncs,
+                                      hb_font_get_nominal_glyph_func_t func,
+                                      void *user_data, hb_destroy_func_t destroy);
+
+/**
+ * hb_font_funcs_set_variation_glyph_func:
+ * @ffuncs: font functions.
+ * @func: (closure user_data) (destroy destroy) (scope notified):
+ * @user_data:
+ * @destroy:
+ *
+ * 
+ *
+ * Since: 1.2.3
+ **/
+HB_EXTERN void
+hb_font_funcs_set_variation_glyph_func (hb_font_funcs_t *ffuncs,
+                                        hb_font_get_variation_glyph_func_t func,
+                                        void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_h_advance_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
@@ skipping 151 matching lines @@
 /* func dispatch */
 
 HB_EXTERN hb_bool_t
 hb_font_get_h_extents (hb_font_t *font,
                        hb_font_extents_t *extents);
 HB_EXTERN hb_bool_t
 hb_font_get_v_extents (hb_font_t *font,
                        hb_font_extents_t *extents);
 
 HB_EXTERN hb_bool_t
-hb_font_get_glyph (hb_font_t *font,
-                   hb_codepoint_t unicode, hb_codepoint_t variation_selector,
-                   hb_codepoint_t *glyph);
+hb_font_get_nominal_glyph (hb_font_t *font,
+                           hb_codepoint_t unicode,
+                           hb_codepoint_t *glyph);
+HB_EXTERN hb_bool_t
+hb_font_get_variation_glyph (hb_font_t *font,
+                             hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+                             hb_codepoint_t *glyph);
 
 HB_EXTERN hb_position_t
 hb_font_get_glyph_h_advance (hb_font_t *font,
                              hb_codepoint_t glyph);
 HB_EXTERN hb_position_t
 hb_font_get_glyph_v_advance (hb_font_t *font,
                              hb_codepoint_t glyph);
 
 HB_EXTERN hb_bool_t
 hb_font_get_glyph_h_origin (hb_font_t *font,
@@ skipping 26 matching lines @@
                         hb_codepoint_t glyph,
                         char *name, unsigned int size);
 HB_EXTERN hb_bool_t
 hb_font_get_glyph_from_name (hb_font_t *font,
                              const char *name, int len, /* -1 means nul-terminated */
                              hb_codepoint_t *glyph);
 
 
 /* high-level funcs, with fallback */
 
+/* Calls either hb_font_get_nominal_glyph() if variation_selector is 0,
+ * otherwise callse hb_font_get_variation_glyph(). */
+HB_EXTERN hb_bool_t
+hb_font_get_glyph (hb_font_t *font,
+                   hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+                   hb_codepoint_t *glyph);
+
 HB_EXTERN void
 hb_font_get_extents_for_direction (hb_font_t *font,
                                    hb_direction_t direction,
                                    hb_font_extents_t *extents);
 HB_EXTERN void
 hb_font_get_glyph_advance_for_direction (hb_font_t *font,
                                          hb_codepoint_t glyph,
                                          hb_direction_t direction,
                                          hb_position_t *x, hb_position_t *y);
 HB_EXTERN void
@@ skipping 125 matching lines @@
 
 HB_EXTERN void
 hb_font_get_ppem (hb_font_t *font,
                   unsigned int *x_ppem,
                   unsigned int *y_ppem);
 
 
 HB_END_DECLS
 
 #endif /* HB_FONT_H */