michael@0: // Copyright (c) 2011 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: #ifndef OTS_METRICS_H_
michael@0: #define OTS_METRICS_H_
michael@0: 
michael@0: #include <new>
michael@0: #include <utility>
michael@0: #include <vector>
michael@0: 
michael@0: #include "ots.h"
michael@0: 
michael@0: namespace ots {
michael@0: 
michael@0: struct OpenTypeMetricsHeader {
michael@0:   uint32_t version;
michael@0:   int16_t ascent;
michael@0:   int16_t descent;
michael@0:   int16_t linegap;
michael@0:   uint16_t adv_width_max;
michael@0:   int16_t min_sb1;
michael@0:   int16_t min_sb2;
michael@0:   int16_t max_extent;
michael@0:   int16_t caret_slope_rise;
michael@0:   int16_t caret_slope_run;
michael@0:   int16_t caret_offset;
michael@0:   uint16_t num_metrics;
michael@0: };
michael@0: 
michael@0: struct OpenTypeMetricsTable {
michael@0:   std::vector<std::pair<uint16_t, int16_t> > entries;
michael@0:   std::vector<int16_t> sbs;
michael@0: };
michael@0: 
michael@0: bool ParseMetricsHeader(OpenTypeFile *file, Buffer *table,
michael@0:                         OpenTypeMetricsHeader *header);
michael@0: bool SerialiseMetricsHeader(const ots::OpenTypeFile *file,
michael@0:                             OTSStream *out,
michael@0:                             const OpenTypeMetricsHeader *header);
michael@0: 
michael@0: bool ParseMetricsTable(const ots::OpenTypeFile *file,
michael@0:                        Buffer *table,
michael@0:                        const uint16_t num_glyphs,
michael@0:                        const OpenTypeMetricsHeader *header,
michael@0:                        OpenTypeMetricsTable *metrics);
michael@0: bool SerialiseMetricsTable(const ots::OpenTypeFile *file,
michael@0:                            OTSStream *out,
michael@0:                            const OpenTypeMetricsTable *metrics);
michael@0: 
michael@0: }  // namespace ots
michael@0: 
michael@0: #endif  // OTS_METRICS_H_
michael@0: