1// Copyright (c) 2009 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "hhea.h"
6
7#include "head.h"
8#include "maxp.h"
9
10// hhea - Horizontal Header
11// http://www.microsoft.com/opentype/otspec/hhea.htm
12
13namespace ots {
14
15bool ots_hhea_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
16  Buffer table(data, length);
17  OpenTypeHHEA *hhea = new OpenTypeHHEA;
18  file->hhea = hhea;
19
20  if (!table.ReadU32(&hhea->header.version)) {
21    return OTS_FAILURE();
22  }
23  if (hhea->header.version >> 16 != 1) {
24    return OTS_FAILURE();
25  }
26
27  if (!ParseMetricsHeader(file, &table, &hhea->header)) {
28    return OTS_FAILURE();
29  }
30
31  return true;
32}
33
34bool ots_hhea_should_serialise(OpenTypeFile *file) {
35  return file->hhea != NULL;
36}
37
38bool ots_hhea_serialise(OTSStream *out, OpenTypeFile *file) {
39  if (!SerialiseMetricsHeader(out, &file->hhea->header)) {
40    return OTS_FAILURE();
41  }
42  return true;
43}
44
45void ots_hhea_free(OpenTypeFile *file) {
46  delete file->hhea;
47}
48
49}  // namespace ots
50