155 lines
4 KiB
C++
155 lines
4 KiB
C++
/*
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* Copyright © 2018 Google, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Google Author(s): Garret Rieger, Roderick Sheeter
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*/
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#ifndef HB_SUBSET_INPUT_HH
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#define HB_SUBSET_INPUT_HH
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#include "hb.hh"
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#include "hb-subset.h"
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#include "hb-map.hh"
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#include "hb-set.hh"
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#include "hb-cplusplus.hh"
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#include "hb-font.hh"
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#include "hb-subset-instancer-solver.hh"
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struct hb_ot_name_record_ids_t
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{
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hb_ot_name_record_ids_t () = default;
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hb_ot_name_record_ids_t (unsigned platform_id_,
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unsigned encoding_id_,
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unsigned language_id_,
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unsigned name_id_)
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:platform_id (platform_id_),
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encoding_id (encoding_id_),
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language_id (language_id_),
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name_id (name_id_) {}
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bool operator != (const hb_ot_name_record_ids_t o) const
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{ return !(*this == o); }
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inline bool operator == (const hb_ot_name_record_ids_t& o) const
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{
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return platform_id == o.platform_id &&
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encoding_id == o.encoding_id &&
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language_id == o.language_id &&
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name_id == o.name_id;
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}
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inline uint32_t hash () const
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{
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uint32_t current = 0;
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current = current * 31 + hb_hash (platform_id);
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current = current * 31 + hb_hash (encoding_id);
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current = current * 31 + hb_hash (language_id);
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current = current * 31 + hb_hash (name_id);
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return current;
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}
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unsigned platform_id;
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unsigned encoding_id;
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unsigned language_id;
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unsigned name_id;
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};
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typedef struct hb_ot_name_record_ids_t hb_ot_name_record_ids_t;
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HB_MARK_AS_FLAG_T (hb_subset_flags_t);
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struct hb_subset_input_t
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{
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HB_INTERNAL hb_subset_input_t ();
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~hb_subset_input_t ()
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{
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sets.~sets_t ();
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#ifdef HB_EXPERIMENTAL_API
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for (auto _ : name_table_overrides.values ())
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_.fini ();
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#endif
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}
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hb_object_header_t header;
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struct sets_t {
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hb::shared_ptr<hb_set_t> glyphs;
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hb::shared_ptr<hb_set_t> unicodes;
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hb::shared_ptr<hb_set_t> no_subset_tables;
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hb::shared_ptr<hb_set_t> drop_tables;
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hb::shared_ptr<hb_set_t> name_ids;
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hb::shared_ptr<hb_set_t> name_languages;
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hb::shared_ptr<hb_set_t> layout_features;
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hb::shared_ptr<hb_set_t> layout_scripts;
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};
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union {
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sets_t sets;
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hb::shared_ptr<hb_set_t> set_ptrs[sizeof (sets_t) / sizeof (hb_set_t*)];
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};
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unsigned flags;
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bool attach_accelerator_data = false;
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// If set loca format will always be the long version.
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bool force_long_loca = false;
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hb_hashmap_t<hb_tag_t, Triple> axes_location;
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hb_map_t glyph_map;
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#ifdef HB_EXPERIMENTAL_API
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hb_hashmap_t<hb_ot_name_record_ids_t, hb_bytes_t> name_table_overrides;
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#endif
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inline unsigned num_sets () const
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{
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return sizeof (set_ptrs) / sizeof (hb_set_t*);
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}
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inline hb_array_t<hb::shared_ptr<hb_set_t>> sets_iter ()
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{
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return hb_array (set_ptrs);
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}
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bool in_error () const
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{
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for (unsigned i = 0; i < num_sets (); i++)
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{
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if (unlikely (set_ptrs[i]->in_error ()))
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return true;
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}
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return axes_location.in_error ()
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#ifdef HB_EXPERIMENTAL_API
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|| name_table_overrides.in_error ()
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#endif
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;
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}
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};
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#endif /* HB_SUBSET_INPUT_HH */
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