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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef OTS_METRICS_H_ | |
6 #define OTS_METRICS_H_ | |
7 | |
8 #include <new> | |
9 #include <utility> | |
10 #include <vector> | |
11 | |
12 #include "ots.h" | |
13 | |
14 namespace ots { | |
15 | |
16 struct OpenTypeMetricsHeader { | |
17 uint32_t version; | |
18 int16_t ascent; | |
19 int16_t descent; | |
20 int16_t linegap; | |
21 uint16_t adv_width_max; | |
22 int16_t min_sb1; | |
23 int16_t min_sb2; | |
24 int16_t max_extent; | |
25 int16_t caret_slope_rise; | |
26 int16_t caret_slope_run; | |
27 int16_t caret_offset; | |
28 uint16_t num_metrics; | |
29 }; | |
30 | |
31 struct OpenTypeMetricsTable { | |
32 std::vector<std::pair<uint16_t, int16_t> > entries; | |
33 std::vector<int16_t> sbs; | |
34 }; | |
35 | |
36 bool ParseMetricsHeader(OpenTypeFile *file, Buffer *table, | |
37 OpenTypeMetricsHeader *header); | |
38 bool SerialiseMetricsHeader(const ots::OpenTypeFile *file, | |
39 OTSStream *out, | |
40 const OpenTypeMetricsHeader *header); | |
41 | |
42 bool ParseMetricsTable(const ots::OpenTypeFile *file, | |
43 Buffer *table, | |
44 const uint16_t num_glyphs, | |
45 const OpenTypeMetricsHeader *header, | |
46 OpenTypeMetricsTable *metrics); | |
47 bool SerialiseMetricsTable(const ots::OpenTypeFile *file, | |
48 OTSStream *out, | |
49 const OpenTypeMetricsTable *metrics); | |
50 | |
51 } // namespace ots | |
52 | |
53 #endif // OTS_METRICS_H_ | |
54 | |
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