chromium/third_party/harfbuzz-ng/src/src/graph/serialize.hh

/*
 * 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
 */

#ifndef GRAPH_SERIALIZE_HH
#define GRAPH_SERIALIZE_HH

namespace graph {

struct overflow_record_t
{ … };

inline
int64_t compute_offset (
    const graph_t& graph,
    unsigned parent_idx,
    const hb_serialize_context_t::object_t::link_t& link)
{ … }

inline
bool is_valid_offset (int64_t offset,
                      const hb_serialize_context_t::object_t::link_t& link)
{ … }

/*
 * Will any offsets overflow on graph when it's serialized?
 */
inline bool
will_overflow (graph_t& graph,
               hb_vector_t<overflow_record_t>* overflows = nullptr)
{ … }

inline
void print_overflows (graph_t& graph,
                      const hb_vector_t<overflow_record_t>& overflows)
{ … }

template <typename O> inline void
serialize_link_of_type (const hb_serialize_context_t::object_t::link_t& link,
                        char* head,
                        hb_serialize_context_t* c)
{ … }

inline
void serialize_link (const hb_serialize_context_t::object_t::link_t& link,
                     char* head,
                     hb_serialize_context_t* c)
{ … }

/*
 * serialize graph into the provided serialization buffer.
 */
inline hb_blob_t* serialize (const graph_t& graph)
{ … }

} // namespace graph

#endif // GRAPH_SERIALIZE_HH