1/*
2 * Copyright © 2007,2008,2009,2010 Red Hat, Inc.
3 * Copyright © 2010,2012,2013 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_OT_LAYOUT_GPOS_TABLE_HH
30#define HB_OT_LAYOUT_GPOS_TABLE_HH
31
32#include "OT/Layout/GPOS/GPOS.hh"
33
34namespace OT {
35namespace Layout {
36namespace GPOS_impl {
37
38// TODO(garretrieger): Move into new layout directory.
39/* Out-of-class implementation for methods recursing */
40#ifndef HB_NO_OT_LAYOUT
41template <typename context_t>
42/*static*/ typename context_t::return_t PosLookup::dispatch_recurse_func (context_t *c, unsigned int lookup_index)
43{
44 const PosLookup &l = c->face->table.GPOS.get_relaxed ()->table->get_lookup (lookup_index);
45 return l.dispatch (c);
46}
47
48template <>
49inline hb_closure_lookups_context_t::return_t
50PosLookup::dispatch_recurse_func<hb_closure_lookups_context_t> (hb_closure_lookups_context_t *c, unsigned this_index)
51{
52 const PosLookup &l = c->face->table.GPOS.get_relaxed ()->table->get_lookup (this_index);
53 return l.closure_lookups (c, this_index);
54}
55
56template <>
57inline bool PosLookup::dispatch_recurse_func<hb_ot_apply_context_t> (hb_ot_apply_context_t *c, unsigned int lookup_index)
58{
59 auto *gpos = c->face->table.GPOS.get_relaxed ();
60 const PosLookup &l = gpos->table->get_lookup (lookup_index);
61 unsigned int saved_lookup_props = c->lookup_props;
62 unsigned int saved_lookup_index = c->lookup_index;
63 c->set_lookup_index (lookup_index);
64 c->set_lookup_props (l.get_props ());
65
66 bool ret = false;
67 auto *accel = gpos->get_accel (lookup_index);
68 ret = accel && accel->apply (c, l.get_subtable_count (), false);
69
70 c->set_lookup_index (saved_lookup_index);
71 c->set_lookup_props (saved_lookup_props);
72 return ret;
73}
74#endif
75
76} /* namespace GPOS_impl */
77} /* namespace Layout */
78} /* namespace OT */
79
80
81#endif /* HB_OT_LAYOUT_GPOS_TABLE_HH */
82