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      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 tableTag	= 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 == 0x5000u)));
     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 					 * 0x00005000u or 0x00010000u. */
     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 */
     70