michael@0: // Copyright (c) 2009 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "hhea.h"
michael@0: 
michael@0: #include "head.h"
michael@0: #include "maxp.h"
michael@0: 
michael@0: // hhea - Horizontal Header
michael@0: // http://www.microsoft.com/typography/otspec/hhea.htm
michael@0: 
michael@0: #define TABLE_NAME "hhea"
michael@0: 
michael@0: namespace ots {
michael@0: 
michael@0: bool ots_hhea_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
michael@0:   Buffer table(data, length);
michael@0:   OpenTypeHHEA *hhea = new OpenTypeHHEA;
michael@0:   file->hhea = hhea;
michael@0: 
michael@0:   if (!table.ReadU32(&hhea->header.version)) {
michael@0:     return OTS_FAILURE_MSG("Failed to read hhea version");
michael@0:   }
michael@0:   if (hhea->header.version >> 16 != 1) {
michael@0:     return OTS_FAILURE_MSG("Bad hhea version of %d", hhea->header.version);
michael@0:   }
michael@0: 
michael@0:   if (!ParseMetricsHeader(file, &table, &hhea->header)) {
michael@0:     return OTS_FAILURE_MSG("Failed to parse horizontal metrics");
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool ots_hhea_should_serialise(OpenTypeFile *file) {
michael@0:   return file->hhea != NULL;
michael@0: }
michael@0: 
michael@0: bool ots_hhea_serialise(OTSStream *out, OpenTypeFile *file) {
michael@0:   if (!SerialiseMetricsHeader(file, out, &file->hhea->header)) {
michael@0:     return OTS_FAILURE_MSG("Failed to serialise horizontal metrics");
michael@0:   }
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: void ots_hhea_free(OpenTypeFile *file) {
michael@0:   delete file->hhea;
michael@0: }
michael@0: 
michael@0: }  // namespace ots