The Tor Browser: gfx/ots/src/metrics.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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.

     5 #ifndef OTS_METRICS_H_

     6 #define OTS_METRICS_H_

     8 #include <new>

     9 #include <utility>

    10 #include <vector>

    12 #include "ots.h"

    14 namespace ots {

    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 };

    31 struct OpenTypeMetricsTable {

    32   std::vector<std::pair<uint16_t, int16_t> > entries;

    33   std::vector<int16_t> sbs;

    34 };

    36 bool ParseMetricsHeader(OpenTypeFile *file, Buffer *table,

    37                         OpenTypeMetricsHeader *header);

    38 bool SerialiseMetricsHeader(const ots::OpenTypeFile *file,

    39                             OTSStream *out,

    40                             const OpenTypeMetricsHeader *header);

    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);

    51 }  // namespace ots

    53 #endif  // OTS_METRICS_H_

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