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54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef OTS_METRICS_H_
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#define OTS_METRICS_H_
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#include <new>
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#include <utility>
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#include <vector>
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#include "ots.h"
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namespace ots {
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struct OpenTypeMetricsHeader {
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uint32_t version;
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int16_t ascent;
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int16_t descent;
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int16_t linegap;
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uint16_t adv_width_max;
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int16_t min_sb1;
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int16_t min_sb2;
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int16_t max_extent;
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int16_t caret_slope_rise;
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int16_t caret_slope_run;
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int16_t caret_offset;
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uint16_t num_metrics;
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};
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struct OpenTypeMetricsTable {
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std::vector<std::pair<uint16_t, int16_t> > entries;
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std::vector<int16_t> sbs;
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};
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bool ParseMetricsHeader(Font *font, Buffer *table,
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OpenTypeMetricsHeader *header);
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bool SerialiseMetricsHeader(const ots::Font *font,
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OTSStream *out,
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const OpenTypeMetricsHeader *header);
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bool ParseMetricsTable(const ots::Font *font,
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Buffer *table,
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const uint16_t num_glyphs,
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const OpenTypeMetricsHeader *header,
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OpenTypeMetricsTable *metrics);
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bool SerialiseMetricsTable(const ots::Font *font,
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OTSStream *out,
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const OpenTypeMetricsTable *metrics);
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} // namespace ots
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#endif // OTS_METRICS_H_
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