kc3-lang/harfbuzz/src/OT/Layout/GPOS/MarkRecord.hh

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• Hash : 7989702a
  Author :
  Date : 2023-08-06T14:17:50
  

  Audit and fix up serialize_subset uses
  
  Fixes https://github.com/harfbuzz/harfbuzz/issues/4362
  

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• src/OT/Layout/GPOS/MarkRecord.hh

• #ifndef OT_LAYOUT_GPOS_MARKRECORD_HH
  #define OT_LAYOUT_GPOS_MARKRECORD_HH
  
  namespace OT {
  namespace Layout {
  namespace GPOS_impl {
  
  struct MarkRecord
  {
    friend struct MarkArray;
  
    public:
    HBUINT16      klass;                  /* Class defined for this mark */
    Offset16To<Anchor>
                  markAnchor;             /* Offset to Anchor table--from
                                           * beginning of MarkArray table */
    public:
    DEFINE_SIZE_STATIC (4);
  
    unsigned get_class () const { return (unsigned) klass; }
    bool sanitize (hb_sanitize_context_t *c, const void *base) const
    {
      TRACE_SANITIZE (this);
      return_trace (c->check_struct (this) && markAnchor.sanitize (c, base));
    }
  
    bool subset (hb_subset_context_t    *c,
  	       const void             *src_base,
  	       const hb_map_t         *klass_mapping) const
    {
      TRACE_SUBSET (this);
      auto *out = c->serializer->embed (this);
      if (unlikely (!out)) return_trace (false);
  
      out->klass = klass_mapping->get (klass);
      return_trace (out->markAnchor.serialize_subset (c, markAnchor, src_base));
    }
  
    void collect_variation_indices (hb_collect_variation_indices_context_t *c,
                                    const void *src_base) const
    {
      (src_base+markAnchor).collect_variation_indices (c);
    }
  };
  
  
  }
  }
  }
  
  #endif /* OT_LAYOUT_GPOS_MARKRECORD_HH */
  

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