harfbuzz-ng roll

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

 /*
  * Copyright © 1998-2004  David Turner and Werner Lemberg
  * Copyright © 2004,2007,2009  Red Hat, Inc.
  * Copyright © 2011  Google, 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
@@ skipping 22 matching lines @@
 
 #ifndef HB_BUFFER_H
 #define HB_BUFFER_H
 
 #include "hb-common.h"
 #include "hb-unicode.h"
 
 HB_BEGIN_DECLS
 
 
-typedef struct _hb_buffer_t hb_buffer_t;
+typedef struct hb_buffer_t hb_buffer_t;
 
-typedef struct _hb_glyph_info_t {
+typedef struct hb_glyph_info_t {
   hb_codepoint_t codepoint;
   hb_mask_t      mask;
   uint32_t       cluster;
 
   /*< private >*/
   hb_var_int_t   var1;
   hb_var_int_t   var2;
 } hb_glyph_info_t;
 
-typedef struct _hb_glyph_position_t {
+typedef struct hb_glyph_position_t {
   hb_position_t  x_advance;
   hb_position_t  y_advance;
   hb_position_t  x_offset;
   hb_position_t  y_offset;
 
   /*< private >*/
   hb_var_int_t   var;
 } hb_glyph_position_t;
 
+typedef enum {
+  HB_BUFFER_CONTENT_TYPE_INVALID = 0,
+  HB_BUFFER_CONTENT_TYPE_UNICODE,
+  HB_BUFFER_CONTENT_TYPE_GLYPHS
+} hb_buffer_content_type_t;
+
 
 hb_buffer_t *
 hb_buffer_create (void);
 
 hb_buffer_t *
 hb_buffer_get_empty (void);
 
 hb_buffer_t *
 hb_buffer_reference (hb_buffer_t *buffer);
 
 void
 hb_buffer_destroy (hb_buffer_t *buffer);
 
 hb_bool_t
 hb_buffer_set_user_data (hb_buffer_t        *buffer,
                          hb_user_data_key_t *key,
                          void *              data,
                          hb_destroy_func_t   destroy,
                          hb_bool_t           replace);
 
 void *
 hb_buffer_get_user_data (hb_buffer_t        *buffer,
                          hb_user_data_key_t *key);
 
 
 void
+hb_buffer_set_content_type (hb_buffer_t              *buffer,
+                            hb_buffer_content_type_t  content_type);
+
+hb_buffer_content_type_t
+hb_buffer_get_content_type (hb_buffer_t *buffer);
+
+
+void
 hb_buffer_set_unicode_funcs (hb_buffer_t        *buffer,
                              hb_unicode_funcs_t *unicode_funcs);
 
 hb_unicode_funcs_t *
 hb_buffer_get_unicode_funcs (hb_buffer_t        *buffer);
 
 void
 hb_buffer_set_direction (hb_buffer_t    *buffer,
                          hb_direction_t  direction);
 
@@ skipping 85 matching lines @@
 hb_glyph_info_t *
 hb_buffer_get_glyph_infos (hb_buffer_t  *buffer,
                            unsigned int *length);
 
 /* Return value valid as long as buffer not modified */
 hb_glyph_position_t *
 hb_buffer_get_glyph_positions (hb_buffer_t  *buffer,
                                unsigned int *length);
 
 
+/* Reorders a glyph buffer to have canonical in-cluster glyph order / position.
+ * The resulting clusters should behave identical to pre-reordering clusters.
+ * NOTE: This has nothing to do with Unicode normalization. */
+void
+hb_buffer_normalize_glyphs (hb_buffer_t *buffer);
+
+/*
+ * NOT IMPLEMENTED
+ void
+ hb_buffer_normalize_characters (hb_buffer_t *buffer);
+*/
+
+
 HB_END_DECLS
 
 #endif /* HB_BUFFER_H */