third_party/harfbuzz-ng/src/hb-ot-maxp-table.hh

   1 /*
   2  * Copyright © 2011,2012  Google, Inc.
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   6  * Permission is hereby granted, without written agreement and without
   7  * license or royalty fees, to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose, provided that the
   9  * above copyright notice and the following two paragraphs appear in
  10  * all copies of this software.
  11  *
  12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  16  * DAMAGE.
  17  *
  18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  23  *
  24  * Google Author(s): Behdad Esfahbod
  25  */
  26
  27 #ifndef HB_OT_MAXP_TABLE_HH
  28 #define HB_OT_MAXP_TABLE_HH
  29
  30 #include "hb-open-type-private.hh"
  31
  32
  33 namespace OT {
  34
  35
  36 /*
  37  * maxp -- The Maximum Profile Table
  38  */
  39
  40 #define HB_OT_TAG_maxp HB_TAG('m','a','x','p')
  41
  42 struct maxp
  43 {
  44   static const hb_tag_t Tag     = HB_OT_TAG_maxp;
  45
  46   inline unsigned int get_num_glyphs (void) const {
  47     return numGlyphs;
  48   }
  49
  50   inline bool sanitize (hb_sanitize_context_t *c) {
  51     TRACE_SANITIZE (this);
  52     return TRACE_RETURN (c->check_struct (this) &&
  53                          likely (version.major == 1 || (version.major == 0 && version.minor == 0x5000)));
  54   }
  55
  56   /* We only implement version 0.5 as none of the extra fields in version 1.0 are useful. */
  57   protected:
  58   FixedVersion  version;                /* Version of the maxp table (0.5 or 1.0),
  59                                          * 0x00005000 or 0x00010000. */
  60   USHORT        numGlyphs;              /* The number of glyphs in the font. */
  61   public:
  62   DEFINE_SIZE_STATIC (6);
  63 };
  64
  65
  66 } /* namespace OT */
  67
  68
  69 #endif /* HB_OT_MAXP_TABLE_HH */