kc3-lang/harfbuzz/src/OT/Layout/GPOS/SinglePosFormat1.hh

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• Hash : ed023f66
  Author :
  Date : 2023-01-12T17:04:24
  

  Enable -Wformat-signedness
  
  And fix the codebase.
  

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• src/OT/Layout/GPOS/SinglePosFormat1.hh

• #ifndef OT_LAYOUT_GPOS_SINGLEPOSFORMAT1_HH
  #define OT_LAYOUT_GPOS_SINGLEPOSFORMAT1_HH
  
  #include "Common.hh"
  #include "ValueFormat.hh"
  
  namespace OT {
  namespace Layout {
  namespace GPOS_impl {
  
  struct SinglePosFormat1
  {
    protected:
    HBUINT16      format;                 /* Format identifier--format = 1 */
    Offset16To<Coverage>
                  coverage;               /* Offset to Coverage table--from
                                           * beginning of subtable */
    ValueFormat   valueFormat;            /* Defines the types of data in the
                                           * ValueRecord */
    ValueRecord   values;                 /* Defines positioning
                                           * value(s)--applied to all glyphs in
                                           * the Coverage table */
    public:
    DEFINE_SIZE_ARRAY (6, values);
  
    bool sanitize (hb_sanitize_context_t *c) const
    {
      TRACE_SANITIZE (this);
      return_trace (c->check_struct (this) &&
                    coverage.sanitize (c, this) &&
                    valueFormat.sanitize_value (c, this, values));
    }
  
    bool intersects (const hb_set_t *glyphs) const
    { return (this+coverage).intersects (glyphs); }
  
    void closure_lookups (hb_closure_lookups_context_t *c) const {}
    void collect_variation_indices (hb_collect_variation_indices_context_t *c) const
    {
      if (!valueFormat.has_device ()) return;
  
      hb_set_t intersection;
      (this+coverage).intersect_set (*c->glyph_set, intersection);
      if (!intersection) return;
  
      valueFormat.collect_variation_indices (c, this, values.as_array (valueFormat.get_len ()));
    }
  
    void collect_glyphs (hb_collect_glyphs_context_t *c) const
    { if (unlikely (!(this+coverage).collect_coverage (c->input))) return; }
  
    const Coverage &get_coverage () const { return this+coverage; }
  
    ValueFormat get_value_format () const { return valueFormat; }
  
    bool apply (hb_ot_apply_context_t *c) const
    {
      TRACE_APPLY (this);
      hb_buffer_t *buffer = c->buffer;
      unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
      if (likely (index == NOT_COVERED)) return_trace (false);
  
      if (HB_BUFFER_MESSAGE_MORE && c->buffer->messaging ())
      {
        c->buffer->message (c->font,
  			  "positioning glyph at %u",
  			  c->buffer->idx);
      }
  
      valueFormat.apply_value (c, this, values, buffer->cur_pos());
  
      if (HB_BUFFER_MESSAGE_MORE && c->buffer->messaging ())
      {
        c->buffer->message (c->font,
  			  "positioned glyph at %u",
  			  c->buffer->idx);
      }
  
      buffer->idx++;
      return_trace (true);
    }
  
    bool
    position_single (hb_font_t           *font,
  		   hb_direction_t       direction,
  		   hb_codepoint_t       gid,
  		   hb_glyph_position_t &pos) const
    {
      unsigned int index = (this+coverage).get_coverage  (gid);
      if (likely (index == NOT_COVERED)) return false;
  
      /* This is ugly... */
      hb_buffer_t buffer;
      buffer.props.direction = direction;
      OT::hb_ot_apply_context_t c (1, font, &buffer);
  
      valueFormat.apply_value (&c, this, values, pos);
      return true;
    }
  
    template<typename Iterator,
        typename SrcLookup,
        hb_requires (hb_is_iterator (Iterator))>
    void serialize (hb_serialize_context_t *c,
                    const SrcLookup *src,
                    Iterator it,
                    ValueFormat newFormat,
                    const hb_hashmap_t<unsigned, hb_pair_t<unsigned, int>> *layout_variation_idx_delta_map)
    {
      if (unlikely (!c->extend_min (this))) return;
      if (unlikely (!c->check_assign (valueFormat,
                                      newFormat,
                                      HB_SERIALIZE_ERROR_INT_OVERFLOW))) return;
  
      for (const hb_array_t<const Value>& _ : + it | hb_map (hb_second))
      {
        src->get_value_format ().copy_values (c, newFormat, src,  &_, layout_variation_idx_delta_map);
        // Only serialize the first entry in the iterator, the rest are assumed to
        // be the same.
        break;
      }
  
      auto glyphs =
      + it
      | hb_map_retains_sorting (hb_first)
      ;
  
      coverage.serialize_serialize (c, glyphs);
    }
  
    bool subset (hb_subset_context_t *c) const
    {
      TRACE_SUBSET (this);
      const hb_set_t &glyphset = *c->plan->glyphset_gsub ();
      const hb_map_t &glyph_map = *c->plan->glyph_map;
  
      hb_set_t intersection;
      (this+coverage).intersect_set (glyphset, intersection);
  
      auto it =
      + hb_iter (intersection)
      | hb_map_retains_sorting (glyph_map)
      | hb_zip (hb_repeat (values.as_array (valueFormat.get_len ())))
      ;
  
      bool ret = bool (it);
      SinglePos_serialize (c->serializer, this, it, &c->plan->layout_variation_idx_delta_map, c->plan->all_axes_pinned);
      return_trace (ret);
    }
  };
  
  }
  }
  }
  
  #endif /* OT_LAYOUT_GPOS_SINGLEPOSFORMAT1_HH */
  

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