1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/ots/src/metrics.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,54 @@
1.4 +// Copyright (c) 2011 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 +#ifndef OTS_METRICS_H_
1.9 +#define OTS_METRICS_H_
1.10 +
1.11 +#include <new>
1.12 +#include <utility>
1.13 +#include <vector>
1.14 +
1.15 +#include "ots.h"
1.16 +
1.17 +namespace ots {
1.18 +
1.19 +struct OpenTypeMetricsHeader {
1.20 + uint32_t version;
1.21 + int16_t ascent;
1.22 + int16_t descent;
1.23 + int16_t linegap;
1.24 + uint16_t adv_width_max;
1.25 + int16_t min_sb1;
1.26 + int16_t min_sb2;
1.27 + int16_t max_extent;
1.28 + int16_t caret_slope_rise;
1.29 + int16_t caret_slope_run;
1.30 + int16_t caret_offset;
1.31 + uint16_t num_metrics;
1.32 +};
1.33 +
1.34 +struct OpenTypeMetricsTable {
1.35 + std::vector<std::pair<uint16_t, int16_t> > entries;
1.36 + std::vector<int16_t> sbs;
1.37 +};
1.38 +
1.39 +bool ParseMetricsHeader(OpenTypeFile *file, Buffer *table,
1.40 + OpenTypeMetricsHeader *header);
1.41 +bool SerialiseMetricsHeader(const ots::OpenTypeFile *file,
1.42 + OTSStream *out,
1.43 + const OpenTypeMetricsHeader *header);
1.44 +
1.45 +bool ParseMetricsTable(const ots::OpenTypeFile *file,
1.46 + Buffer *table,
1.47 + const uint16_t num_glyphs,
1.48 + const OpenTypeMetricsHeader *header,
1.49 + OpenTypeMetricsTable *metrics);
1.50 +bool SerialiseMetricsTable(const ots::OpenTypeFile *file,
1.51 + OTSStream *out,
1.52 + const OpenTypeMetricsTable *metrics);
1.53 +
1.54 +} // namespace ots
1.55 +
1.56 +#endif // OTS_METRICS_H_
1.57 +
