Index: third_party/harfbuzz-ng/src/hb-font.h |
diff --git a/third_party/harfbuzz-ng/src/hb-font.h b/third_party/harfbuzz-ng/src/hb-font.h |
index f33e56feb6d82621a5cdcec4cdef5ff5988120a3..8a9dda593a90d11621d495cc7fb18bb6cde97f3c 100644 |
--- a/third_party/harfbuzz-ng/src/hb-font.h |
+++ b/third_party/harfbuzz-ng/src/hb-font.h |
@@ -1,5 +1,5 @@ |
/* |
- * Copyright (C) 2009 Red Hat, Inc. |
+ * Copyright © 2009 Red Hat, Inc. |
* |
* This is part of HarfBuzz, a text shaping library. |
* |
@@ -41,42 +41,62 @@ typedef struct _hb_font_t hb_font_t; |
*/ |
hb_face_t * |
-hb_face_create_for_data (hb_blob_t *blob, |
- unsigned int index); |
+hb_face_create (hb_blob_t *blob, |
+ unsigned int index); |
-typedef hb_blob_t * (*hb_get_table_func_t) (hb_tag_t tag, void *user_data); |
+typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data); |
/* calls destroy() when not needing user_data anymore */ |
hb_face_t * |
-hb_face_create_for_tables (hb_get_table_func_t get_table, |
- hb_destroy_func_t destroy, |
- void *user_data); |
+hb_face_create_for_tables (hb_reference_table_func_t reference_table, |
+ void *user_data, |
+ hb_destroy_func_t destroy); |
hb_face_t * |
-hb_face_reference (hb_face_t *face); |
+hb_face_get_empty (void); |
-unsigned int |
-hb_face_get_reference_count (hb_face_t *face); |
+hb_face_t * |
+hb_face_reference (hb_face_t *face); |
void |
hb_face_destroy (hb_face_t *face); |
-/* XXX |
- * |
- * I have two major concerns about this API as it is right now: |
- * |
- * - Jonathan Kew convinced me to make it return NULL if table not found (280af1bd), |
- * however, that is WRONG IMO. The API should not differentiate between a non-existing |
- * table vs a zero-length table vs a very short table. It only leads to implementations |
- * that check for non-NULL and assume that they've got a usable table going on... This |
- * actually happened with Firefox. |
- * |
- * - It has to be renamed to reference_table() since unlike any other _get_ API, a reference |
- * ownership transfer happens and the user is responsible to destroy the result. |
- */ |
+hb_bool_t |
+hb_face_set_user_data (hb_face_t *face, |
+ hb_user_data_key_t *key, |
+ void * data, |
+ hb_destroy_func_t destroy, |
+ hb_bool_t replace); |
+ |
+ |
+void * |
+hb_face_get_user_data (hb_face_t *face, |
+ hb_user_data_key_t *key); |
+ |
+void |
+hb_face_make_immutable (hb_face_t *face); |
+ |
+hb_bool_t |
+hb_face_is_immutable (hb_face_t *face); |
+ |
+ |
+hb_blob_t * |
+hb_face_reference_table (hb_face_t *face, |
+ hb_tag_t tag); |
+ |
hb_blob_t * |
-hb_face_get_table (hb_face_t *face, |
- hb_tag_t tag); |
+hb_face_reference_blob (hb_face_t *face); |
+ |
+void |
+hb_face_set_index (hb_face_t *face, |
+ unsigned int index); |
+ |
+unsigned int |
+hb_face_get_index (hb_face_t *face); |
+ |
+void |
+hb_face_set_upem (hb_face_t *face, |
+ unsigned int upem); |
unsigned int |
hb_face_get_upem (hb_face_t *face); |
@@ -92,16 +112,26 @@ hb_font_funcs_t * |
hb_font_funcs_create (void); |
hb_font_funcs_t * |
-hb_font_funcs_reference (hb_font_funcs_t *ffuncs); |
+hb_font_funcs_get_empty (void); |
-unsigned int |
-hb_font_funcs_get_reference_count (hb_font_funcs_t *ffuncs); |
+hb_font_funcs_t * |
+hb_font_funcs_reference (hb_font_funcs_t *ffuncs); |
void |
hb_font_funcs_destroy (hb_font_funcs_t *ffuncs); |
-hb_font_funcs_t * |
-hb_font_funcs_copy (hb_font_funcs_t *ffuncs); |
+hb_bool_t |
+hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs, |
+ hb_user_data_key_t *key, |
+ void * data, |
+ hb_destroy_func_t destroy, |
+ hb_bool_t replace); |
+ |
+ |
+void * |
+hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs, |
+ hb_user_data_key_t *key); |
+ |
void |
hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs); |
@@ -113,88 +143,176 @@ hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs); |
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; |
+ hb_position_t y_bearing; |
+ hb_position_t width; |
+ hb_position_t height; |
} hb_glyph_extents_t; |
-typedef hb_codepoint_t (*hb_font_get_glyph_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data, |
- hb_codepoint_t unicode, hb_codepoint_t variation_selector); |
-typedef void (*hb_font_get_glyph_advance_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data, |
- hb_codepoint_t glyph, |
- hb_position_t *x_advance, hb_position_t *y_advance); |
-typedef void (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data, |
- hb_codepoint_t glyph, |
- hb_glyph_extents_t *extents); |
-typedef hb_bool_t (*hb_font_get_contour_point_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data, |
- unsigned int point_index, hb_codepoint_t glyph, |
- hb_position_t *x, hb_position_t *y); |
-typedef hb_position_t (*hb_font_get_kerning_func_t) (hb_font_t *font, hb_face_t *face, const void *user_data, |
- hb_codepoint_t first_glyph, hb_codepoint_t second_glyph); |
+ |
+/* 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); |
+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, |
+ hb_position_t *x, hb_position_t *y, |
+ void *user_data); |
+typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_h_origin_func_t; |
+typedef hb_font_get_glyph_origin_func_t hb_font_get_glyph_v_origin_func_t; |
+ |
+typedef hb_position_t (*hb_font_get_glyph_kerning_func_t) (hb_font_t *font, void *font_data, |
+ hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, |
+ void *user_data); |
+typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_h_kerning_func_t; |
+typedef hb_font_get_glyph_kerning_func_t hb_font_get_glyph_v_kerning_func_t; |
+ |
+ |
+typedef hb_bool_t (*hb_font_get_glyph_extents_func_t) (hb_font_t *font, void *font_data, |
+ hb_codepoint_t glyph, |
+ hb_glyph_extents_t *extents, |
+ void *user_data); |
+typedef hb_bool_t (*hb_font_get_glyph_contour_point_func_t) (hb_font_t *font, void *font_data, |
+ hb_codepoint_t glyph, unsigned int point_index, |
+ hb_position_t *x, hb_position_t *y, |
+ void *user_data); |
+ |
+ |
+/* func setters */ |
+ |
void |
hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs, |
- hb_font_get_glyph_func_t glyph_func); |
+ hb_font_get_glyph_func_t glyph_func, |
+ void *user_data, hb_destroy_func_t destroy); |
void |
-hb_font_funcs_set_glyph_advance_func (hb_font_funcs_t *ffuncs, |
- hb_font_get_glyph_advance_func_t glyph_advance_func); |
+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); |
+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); |
void |
-hb_font_funcs_set_glyph_extents_func (hb_font_funcs_t *ffuncs, |
- hb_font_get_glyph_extents_func_t glyph_extents_func); |
+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); |
+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); |
void |
-hb_font_funcs_set_contour_point_func (hb_font_funcs_t *ffuncs, |
- hb_font_get_contour_point_func_t contour_point_func); |
+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); |
+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); |
void |
-hb_font_funcs_set_kerning_func (hb_font_funcs_t *ffuncs, |
- hb_font_get_kerning_func_t kerning_func); |
+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); |
+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); |
+ |
+/* func dispatch */ |
-/* These never return NULL. Return fallback defaults instead. */ |
+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_glyph_func_t |
-hb_font_funcs_get_glyph_func (hb_font_funcs_t *ffuncs); |
+hb_position_t |
+hb_font_get_glyph_h_advance (hb_font_t *font, |
+ hb_codepoint_t glyph); |
+hb_position_t |
+hb_font_get_glyph_v_advance (hb_font_t *font, |
+ hb_codepoint_t glyph); |
-hb_font_get_glyph_advance_func_t |
-hb_font_funcs_get_glyph_advance_func (hb_font_funcs_t *ffuncs); |
+hb_bool_t |
+hb_font_get_glyph_h_origin (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_position_t *x, hb_position_t *y); |
+hb_bool_t |
+hb_font_get_glyph_v_origin (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_position_t *x, hb_position_t *y); |
-hb_font_get_glyph_extents_func_t |
-hb_font_funcs_get_glyph_extents_func (hb_font_funcs_t *ffuncs); |
+hb_position_t |
+hb_font_get_glyph_h_kerning (hb_font_t *font, |
+ hb_codepoint_t left_glyph, hb_codepoint_t right_glyph); |
+hb_position_t |
+hb_font_get_glyph_v_kerning (hb_font_t *font, |
+ hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph); |
-hb_font_get_contour_point_func_t |
-hb_font_funcs_get_contour_point_func (hb_font_funcs_t *ffuncs); |
+hb_bool_t |
+hb_font_get_glyph_extents (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_glyph_extents_t *extents); |
-hb_font_get_kerning_func_t |
-hb_font_funcs_get_kerning_func (hb_font_funcs_t *ffuncs); |
+hb_bool_t |
+hb_font_get_glyph_contour_point (hb_font_t *font, |
+ hb_codepoint_t glyph, unsigned int point_index, |
+ hb_position_t *x, hb_position_t *y); |
-hb_codepoint_t |
-hb_font_get_glyph (hb_font_t *font, hb_face_t *face, |
- hb_codepoint_t unicode, hb_codepoint_t variation_selector); |
+/* high-level funcs, with fallback */ |
void |
-hb_font_get_glyph_advance (hb_font_t *font, hb_face_t *face, |
- hb_codepoint_t glyph, |
- hb_position_t *x_advance, hb_position_t *y_advance); |
+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); |
+void |
+hb_font_get_glyph_origin_for_direction (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_direction_t direction, |
+ hb_position_t *x, hb_position_t *y); |
+void |
+hb_font_add_glyph_origin_for_direction (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_direction_t direction, |
+ hb_position_t *x, hb_position_t *y); |
+void |
+hb_font_subtract_glyph_origin_for_direction (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_direction_t direction, |
+ hb_position_t *x, hb_position_t *y); |
void |
-hb_font_get_glyph_extents (hb_font_t *font, hb_face_t *face, |
- hb_codepoint_t glyph, |
- hb_glyph_extents_t *extents); |
+hb_font_get_glyph_kerning_for_direction (hb_font_t *font, |
+ hb_codepoint_t first_glyph, hb_codepoint_t second_glyph, |
+ hb_direction_t direction, |
+ hb_position_t *x, hb_position_t *y); |
hb_bool_t |
-hb_font_get_contour_point (hb_font_t *font, hb_face_t *face, |
- unsigned int point_index, hb_codepoint_t glyph, |
- hb_position_t *x, hb_position_t *y); |
+hb_font_get_glyph_extents_for_origin (hb_font_t *font, |
+ hb_codepoint_t glyph, |
+ hb_direction_t direction, |
+ hb_glyph_extents_t *extents); |
-hb_position_t |
-hb_font_get_kerning (hb_font_t *font, hb_face_t *face, |
- hb_codepoint_t first_glyph, hb_codepoint_t second_glyph); |
+hb_bool_t |
+hb_font_get_glyph_contour_point_for_origin (hb_font_t *font, |
+ hb_codepoint_t glyph, unsigned int point_index, |
+ hb_direction_t direction, |
+ hb_position_t *x, hb_position_t *y); |
/* |
@@ -204,52 +322,67 @@ hb_font_get_kerning (hb_font_t *font, hb_face_t *face, |
/* Fonts are very light-weight objects */ |
hb_font_t * |
-hb_font_create (void); |
+hb_font_create (hb_face_t *face); |
hb_font_t * |
-hb_font_reference (hb_font_t *font); |
+hb_font_create_sub_font (hb_font_t *parent); |
-unsigned int |
-hb_font_get_reference_count (hb_font_t *font); |
+hb_font_t * |
+hb_font_get_empty (void); |
+ |
+hb_font_t * |
+hb_font_reference (hb_font_t *font); |
void |
hb_font_destroy (hb_font_t *font); |
+hb_bool_t |
+hb_font_set_user_data (hb_font_t *font, |
+ hb_user_data_key_t *key, |
+ void * data, |
+ hb_destroy_func_t destroy, |
+ hb_bool_t replace); |
+ |
+ |
+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); |
+ |
+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, |
- hb_destroy_func_t destroy, |
- void *user_data); |
+ void *font_data, |
+ hb_destroy_func_t destroy); |
-/* Returns what was set and unsets it, but doesn't destroy(user_data). |
- * This is useful for wrapping / chaining font_funcs_t's. |
- * |
- * The client is responsible for: |
- * |
- * - Take ownership of the reference on the returned klass, |
- * |
- * - Calling "destroy(user_data)" exactly once if returned destroy func |
- * is not NULL and the returned info is not needed anymore. |
- */ |
+/* Be *very* careful with this function! */ |
void |
-hb_font_unset_funcs (hb_font_t *font, |
- hb_font_funcs_t **klass, |
- hb_destroy_func_t *destroy, |
- void **user_data); |
+hb_font_set_funcs_data (hb_font_t *font, |
+ void *font_data, |
+ hb_destroy_func_t destroy); |
-/* |
- * We should add support for full matrices. |
- */ |
void |
hb_font_set_scale (hb_font_t *font, |
- unsigned int x_scale, |
- unsigned int y_scale); |
+ int x_scale, |
+ int y_scale); |
void |
hb_font_get_scale (hb_font_t *font, |
- unsigned int *x_scale, |
- unsigned int *y_scale); |
+ int *x_scale, |
+ int *y_scale); |
/* |
* A zero value means "no hinting in that direction" |