1/*
2 * Copyright © 2009  Red Hat, Inc.
3 * Copyright © 2012  Google, Inc.
4 *
5 *  This is part of HarfBuzz, a text shaping library.
6 *
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
12 *
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
17 * DAMAGE.
18 *
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
24 *
25 * Red Hat Author(s): Behdad Esfahbod
26 * Google Author(s): Behdad Esfahbod
27 */
28
29#ifndef HB_H_IN
30#error "Include <hb.h> instead."
31#endif
32
33#ifndef HB_SHAPE_H
34#define HB_SHAPE_H
35
36#include "hb-common.h"
37#include "hb-buffer.h"
38#include "hb-font.h"
39
40HB_BEGIN_DECLS
41
42
43typedef struct hb_feature_t {
44  hb_tag_t      tag;
45  uint32_t      value;
46  unsigned int  start;
47  unsigned int  end;
48} hb_feature_t;
49
50/* len=-1 means str is NUL-terminated */
51hb_bool_t
52hb_feature_from_string (const char *str, int len,
53			hb_feature_t *feature);
54
55/* Something like 128 bytes is more than enough.
56 * nul-terminates. */
57void
58hb_feature_to_string (hb_feature_t *feature,
59		      char *buf, unsigned int size);
60
61
62void
63hb_shape (hb_font_t           *font,
64	  hb_buffer_t         *buffer,
65	  const hb_feature_t  *features,
66	  unsigned int         num_features);
67
68hb_bool_t
69hb_shape_full (hb_font_t          *font,
70	       hb_buffer_t        *buffer,
71	       const hb_feature_t *features,
72	       unsigned int        num_features,
73	       const char * const *shaper_list);
74
75const char **
76hb_shape_list_shapers (void);
77
78
79HB_END_DECLS
80
81#endif /* HB_SHAPE_H */
82