kc3-lang/harfbuzz/src/hb-ot-gasp-table.hh

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• Hash : 5639e253
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  Date : 2021-03-31T16:04:43
  

  Add Array16Of<>
  

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• src/hb-ot-gasp-table.hh

• /*
   * Copyright © 2018  Ebrahim Byagowi
   *
   *  This is part of HarfBuzz, a text shaping library.
   *
   * Permission is hereby granted, without written agreement and without
   * license or royalty fees, to use, copy, modify, and distribute this
   * software and its documentation for any purpose, provided that the
   * above copyright notice and the following two paragraphs appear in
   * all copies of this software.
   *
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   *
   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   */
  
  #ifndef HB_OT_GASP_TABLE_HH
  #define HB_OT_GASP_TABLE_HH
  
  #include "hb-open-type.hh"
  #include "hb-ot-hhea-table.hh"
  #include "hb-ot-os2-table.hh"
  #include "hb-ot-var-hvar-table.hh"
  
  /*
   * gasp -- Grid-fitting and Scan-conversion Procedure
   * https://docs.microsoft.com/en-us/typography/opentype/spec/gasp
   */
  #define HB_OT_TAG_gasp HB_TAG('g','a','s','p')
  
  
  namespace OT {
  
  struct GaspRange
  {
    bool sanitize (hb_sanitize_context_t *c) const
    {
      TRACE_SANITIZE (this);
      return_trace (c->check_struct (this));
    }
  
    public:
    HBUINT16	rangeMaxPPEM;	/* Upper limit of range, in PPEM */
    HBUINT16	rangeGaspBehavior;
  				/* Flags describing desired rasterizer behavior. */
    public:
    DEFINE_SIZE_STATIC (4);
  };
  
  struct gasp
  {
    static constexpr hb_tag_t tableTag = HB_OT_TAG_gasp;
  
    const GaspRange &get_gasp_range (unsigned int i) const
    { return gaspRanges[i]; }
  
    bool sanitize (hb_sanitize_context_t *c) const
    {
      TRACE_SANITIZE (this);
      return_trace (c->check_struct (this) &&
  		  gaspRanges.sanitize (c));
    }
  
    protected:
    HBUINT16	version;	/* Version number (set to 1) */
    Array16Of<GaspRange>
  		gaspRanges;	/* Number of records to follow
  				 * Sorted by ppem */
    public:
    DEFINE_SIZE_ARRAY (4, gaspRanges);
  };
  
  } /* namespace OT */
  
  
  #endif /* HB_OT_GASP_TABLE_HH */
  

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