71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/*
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* Copyright © 2022 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Garret Rieger
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*/
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#include "gsubgpos-graph.hh"
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namespace graph {
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gsubgpos_graph_context_t::gsubgpos_graph_context_t (hb_tag_t table_tag_,
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graph_t& graph_)
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: table_tag (table_tag_),
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graph (graph_),
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lookup_list_index (0),
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lookups ()
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{
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if (table_tag_ != HB_OT_TAG_GPOS
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&& table_tag_ != HB_OT_TAG_GSUB)
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return;
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GSTAR* gstar = graph::GSTAR::graph_to_gstar (graph_);
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if (gstar) {
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gstar->find_lookups (graph, lookups);
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lookup_list_index = gstar->get_lookup_list_index (graph_);
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}
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}
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unsigned gsubgpos_graph_context_t::create_node (unsigned size)
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{
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char* buffer = (char*) hb_calloc (1, size);
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if (!buffer)
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return -1;
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add_buffer (buffer);
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return graph.new_node (buffer, buffer + size);
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}
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unsigned gsubgpos_graph_context_t::num_non_ext_subtables () {
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unsigned count = 0;
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for (auto l : lookups.values ())
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{
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if (l->is_extension (table_tag)) continue;
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count += l->number_of_subtables ();
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}
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return count;
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}
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}
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