1 /****************************************************************************
2  *
3  * afshaper.h
4  *
5  *   HarfBuzz interface for accessing OpenType features (specification).
6  *
7  * Copyright (C) 2013-2020 by
8  * David Turner, Robert Wilhelm, and Werner Lemberg.
9  *
10  * This file is part of the FreeType project, and may only be used,
11  * modified, and distributed under the terms of the FreeType project
12  * license, LICENSE.TXT.  By continuing to use, modify, or distribute
13  * this file you indicate that you have read the license and
14  * understand and accept it fully.
15  *
16  */
17 
18 
19 #ifndef AFSHAPER_H_
20 #define AFSHAPER_H_
21 
22 
23 #include <freetype/freetype.h>
24 
25 
26 #ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
27 
28 #include <hb.h>
29 #include <hb-ot.h>
30 #include <hb-ft.h>
31 
32 #endif
33 
34 
35 FT_BEGIN_HEADER
36 
37   FT_Error
38   af_shaper_get_coverage( AF_FaceGlobals  globals,
39                           AF_StyleClass   style_class,
40                           FT_UShort*      gstyles,
41                           FT_Bool         default_script );
42 
43 
44   void*
45   af_shaper_buf_create( FT_Face  face );
46 
47   void
48   af_shaper_buf_destroy( FT_Face  face,
49                          void*    buf );
50 
51   const char*
52   af_shaper_get_cluster( const char*      p,
53                          AF_StyleMetrics  metrics,
54                          void*            buf_,
55                          unsigned int*    count );
56 
57   FT_ULong
58   af_shaper_get_elem( AF_StyleMetrics  metrics,
59                       void*            buf_,
60                       unsigned int     idx,
61                       FT_Long*         x_advance,
62                       FT_Long*         y_offset );
63 
64  /* */
65 
66 FT_END_HEADER
67 
68 #endif /* AFSHAPER_H_ */
69 
70 
71 /* END */
72