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
13 namespace ots {
14
ots_hhea_parse(OpenTypeFile * file,const uint8_t * data,size_t length)15 bool 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
ots_hhea_should_serialise(OpenTypeFile * file)34 bool ots_hhea_should_serialise(OpenTypeFile *file) {
35 return file->hhea != NULL;
36 }
37
ots_hhea_serialise(OTSStream * out,OpenTypeFile * file)38 bool ots_hhea_serialise(OTSStream *out, OpenTypeFile *file) {
39 if (!SerialiseMetricsHeader(out, &file->hhea->header)) {
40 return OTS_FAILURE();
41 }
42 return true;
43 }
44
ots_hhea_free(OpenTypeFile * file)45 void ots_hhea_free(OpenTypeFile *file) {
46 delete file->hhea;
47 }
48
49 } // namespace ots
50