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1 /*
2  * Copyright © 2022  Google, Inc.
3  *
4  *  This is part of HarfBuzz, a text shaping library.
5  *
6  * Permission is hereby granted, without written agreement and without
7  * license or royalty fees, to use, copy, modify, and distribute this
8  * software and its documentation for any purpose, provided that the
9  * above copyright notice and the following two paragraphs appear in
10  * all copies of this software.
11  *
12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16  * DAMAGE.
17  *
18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23  *
24  * Google Author(s): Garret Rieger
25  */
26 
27 #include "graph.hh"
28 #include "../hb-ot-layout-gsubgpos.hh"
29 
30 #ifndef GRAPH_GSUBGPOS_CONTEXT_HH
31 #define GRAPH_GSUBGPOS_CONTEXT_HH
32 
33 namespace graph {
34 
35 struct Lookup;
36 
37 struct gsubgpos_graph_context_t
38 {
39   hb_tag_t table_tag;
40   graph_t& graph;
41   unsigned lookup_list_index;
42   hb_hashmap_t<unsigned, graph::Lookup*> lookups;
43 
44 
45   HB_INTERNAL gsubgpos_graph_context_t (hb_tag_t table_tag_,
46                                         graph_t& graph_);
47 
48   HB_INTERNAL unsigned create_node (unsigned size);
49 
add_buffergraph::gsubgpos_graph_context_t50   void add_buffer (char* buffer)
51   {
52     graph.add_buffer (buffer);
53   }
54 
55  private:
56   HB_INTERNAL unsigned num_non_ext_subtables ();
57 };
58 
59 }
60 
61 #endif  // GRAPH_GSUBGPOS_CONTEXT
62