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-rw-r--r--src/3rdparty/harfbuzz-ng/src/graph/gsubgpos-context.cc74
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diff --git a/src/3rdparty/harfbuzz-ng/src/graph/gsubgpos-context.cc b/src/3rdparty/harfbuzz-ng/src/graph/gsubgpos-context.cc
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+/*
+ * Copyright © 2022 Google, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Garret Rieger
+ */
+
+#include "gsubgpos-graph.hh"
+
+namespace graph {
+
+gsubgpos_graph_context_t::gsubgpos_graph_context_t (hb_tag_t table_tag_,
+ graph_t& graph_)
+ : table_tag (table_tag_),
+ graph (graph_),
+ lookup_list_index (0),
+ lookups ()
+{
+ if (table_tag_ != HB_OT_TAG_GPOS
+ && table_tag_ != HB_OT_TAG_GSUB)
+ return;
+
+ GSTAR* gstar = graph::GSTAR::graph_to_gstar (graph_);
+ if (gstar) {
+ gstar->find_lookups (graph, lookups);
+ lookup_list_index = gstar->get_lookup_list_index (graph_);
+ }
+}
+
+unsigned gsubgpos_graph_context_t::create_node (unsigned size)
+{
+ char* buffer = (char*) hb_calloc (1, size);
+ if (!buffer)
+ return -1;
+
+ if (!add_buffer (buffer)) {
+ // Allocation did not get stored for freeing later.
+ hb_free (buffer);
+ return -1;
+ }
+
+ return graph.new_node (buffer, buffer + size);
+}
+
+unsigned gsubgpos_graph_context_t::num_non_ext_subtables () {
+ unsigned count = 0;
+ for (auto l : lookups.values ())
+ {
+ if (l->is_extension (table_tag)) continue;
+ count += l->number_of_subtables ();
+ }
+ return count;
+}
+
+}