third_party/ots/src/kern.h

   1 // Copyright (c) 2009 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_KERN_H_
   6 #define OTS_KERN_H_
   7
   8 #include <vector>
   9
  10 #include "ots.h"
  11
  12 namespace ots {
  13
  14 struct OpenTypeKERNFormat0Pair {
  15   uint16_t left;
  16   uint16_t right;
  17   int16_t value;
  18 };
  19
  20 struct OpenTypeKERNFormat0 {
  21   uint16_t version;
  22   uint16_t coverage;
  23   uint16_t search_range;
  24   uint16_t entry_selector;
  25   uint16_t range_shift;
  26   std::vector<OpenTypeKERNFormat0Pair> pairs;
  27 };
  28
  29 // Format 2 is not supported. Since the format is not supported by Windows,
  30 // WebFonts unlikely use it. I've checked thousands of proprietary fonts and
  31 // free fonts, and found no font uses the format.
  32
  33 struct OpenTypeKERN {
  34   uint16_t version;
  35   std::vector<OpenTypeKERNFormat0> subtables;
  36 };
  37
  38 }  // namespace ots
  39
  40 #endif  // OTS_KERN_H_