Roll harfbuzz-ng to 1.0.5

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 62 matching lines @@
 
 void
 hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs);
 
 hb_bool_t
 hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs);
 
 
 /* glyph extents */
 
+/* Note that height is negative in coordinate systems that grow up. */
 typedef struct hb_glyph_extents_t
 {
-  hb_position_t x_bearing;
-  hb_position_t y_bearing;
-  hb_position_t width;
-  hb_position_t height;
+  hb_position_t x_bearing; /* left side of glyph from origin. */
+  hb_position_t y_bearing; /* top side of glyph from origin. */
+  hb_position_t width; /* distance from left to right side. */
+  hb_position_t height; /* distance from top to bottom side. */
 } hb_glyph_extents_t;
 
 
 /* func types */
 
 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);
 
@@ skipping 42 matching lines @@
 
 /**
  * hb_font_funcs_set_glyph_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 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_glyph_h_advance_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_advance_func (hb_font_funcs_t *ffuncs,
                                         hb_font_get_glyph_h_advance_func_t func,
                                         void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_v_advance_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_advance_func (hb_font_funcs_t *ffuncs,
                                         hb_font_get_glyph_v_advance_func_t func,
                                         void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_h_origin_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_origin_func (hb_font_funcs_t *ffuncs,
                                        hb_font_get_glyph_h_origin_func_t func,
                                        void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_v_origin_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_origin_func (hb_font_funcs_t *ffuncs,
                                        hb_font_get_glyph_v_origin_func_t func,
                                        void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_h_kerning_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_h_kerning_func (hb_font_funcs_t *ffuncs,
                                         hb_font_get_glyph_h_kerning_func_t func,
                                         void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_v_kerning_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_v_kerning_func (hb_font_funcs_t *ffuncs,
                                         hb_font_get_glyph_v_kerning_func_t func,
                                         void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_extents_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs,
                                       hb_font_get_glyph_extents_func_t func,
                                       void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_contour_point_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
  * @user_data:
  * @destroy:
  *
  * 
  *
- * Since: 1.0
+ * Since: 0.9.2
  **/
 void
 hb_font_funcs_set_glyph_contour_point_func (hb_font_funcs_t *ffuncs,
                                             hb_font_get_glyph_contour_point_func_t func,
                                             void *user_data, hb_destroy_func_t destroy);
 
 /**
  * hb_font_funcs_set_glyph_name_func:
  * @ffuncs: font functions.
  * @func: (closure user_data) (destroy destroy) (scope notified):
@@ skipping 161 matching lines @@
 void *
 hb_font_get_user_data (hb_font_t          *font,
                        hb_user_data_key_t *key);
 
 void
 hb_font_make_immutable (hb_font_t *font);
 
 hb_bool_t
 hb_font_is_immutable (hb_font_t *font);
 
+void
+hb_font_set_parent (hb_font_t *font,
+                    hb_font_t *parent);
+
 hb_font_t *
 hb_font_get_parent (hb_font_t *font);
 
 hb_face_t *
 hb_font_get_face (hb_font_t *font);
 
 
 void
 hb_font_set_funcs (hb_font_t         *font,
                    hb_font_funcs_t   *klass,
@@ skipping 27 matching lines @@
 
 void
 hb_font_get_ppem (hb_font_t *font,
                   unsigned int *x_ppem,
                   unsigned int *y_ppem);
 
 
 HB_END_DECLS
 
 #endif /* HB_FONT_H */