1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/ots/src/hmtx.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,49 @@
1.4 +// Copyright (c) 2009 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#include "hmtx.h"
1.9 +
1.10 +#include "hhea.h"
1.11 +#include "maxp.h"
1.12 +
1.13 +// hmtx - Horizontal Metrics
1.14 +// http://www.microsoft.com/typography/otspec/hmtx.htm
1.15 +
1.16 +#define TABLE_NAME "hmtx"
1.17 +
1.18 +namespace ots {
1.19 +
1.20 +bool ots_hmtx_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
1.21 + Buffer table(data, length);
1.22 + OpenTypeHMTX *hmtx = new OpenTypeHMTX;
1.23 + file->hmtx = hmtx;
1.24 +
1.25 + if (!file->hhea || !file->maxp) {
1.26 + return OTS_FAILURE_MSG("Missing hhea or maxp tables in font, needed by hmtx");
1.27 + }
1.28 +
1.29 + if (!ParseMetricsTable(file, &table, file->maxp->num_glyphs,
1.30 + &file->hhea->header, &hmtx->metrics)) {
1.31 + return OTS_FAILURE_MSG("Failed to parse hmtx metrics");
1.32 + }
1.33 +
1.34 + return true;
1.35 +}
1.36 +
1.37 +bool ots_hmtx_should_serialise(OpenTypeFile *file) {
1.38 + return file->hmtx != NULL;
1.39 +}
1.40 +
1.41 +bool ots_hmtx_serialise(OTSStream *out, OpenTypeFile *file) {
1.42 + if (!SerialiseMetricsTable(file, out, &file->hmtx->metrics)) {
1.43 + return OTS_FAILURE_MSG("Failed to serialise htmx metrics");
1.44 + }
1.45 + return true;
1.46 +}
1.47 +
1.48 +void ots_hmtx_free(OpenTypeFile *file) {
1.49 + delete file->hmtx;
1.50 +}
1.51 +
1.52 +} // namespace ots
