59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
#ifndef OT_LAYOUT_GSUB_GSUB_HH
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#define OT_LAYOUT_GSUB_GSUB_HH
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// TODO(garretrieger): move to new layout.
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#include "../../../hb-ot-layout-gsubgpos.hh"
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#include "Common.hh"
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#include "SubstLookup.hh"
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using OT::Layout::GSUB::SubstLookup;
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namespace OT {
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namespace Layout {
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namespace GSUB {
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/*
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* GSUB -- Glyph Substitution
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* https://docs.microsoft.com/en-us/typography/opentype/spec/gsub
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*/
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struct GSUB : GSUBGPOS
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{
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static constexpr hb_tag_t tableTag = HB_OT_TAG_GSUB;
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const SubstLookup& get_lookup (unsigned int i) const
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{ return static_cast<const SubstLookup &> (GSUBGPOS::get_lookup (i)); }
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bool subset (hb_subset_context_t *c) const
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{
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hb_subset_layout_context_t l (c, tableTag, c->plan->gsub_lookups, c->plan->gsub_langsys, c->plan->gsub_features);
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return GSUBGPOS::subset<SubstLookup> (&l);
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}
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bool sanitize (hb_sanitize_context_t *c) const
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{ return GSUBGPOS::sanitize<SubstLookup> (c); }
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HB_INTERNAL bool is_blocklisted (hb_blob_t *blob,
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hb_face_t *face) const;
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void closure_lookups (hb_face_t *face,
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const hb_set_t *glyphs,
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hb_set_t *lookup_indexes /* IN/OUT */) const
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{ GSUBGPOS::closure_lookups<SubstLookup> (face, glyphs, lookup_indexes); }
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typedef GSUBGPOS::accelerator_t<GSUB> accelerator_t;
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};
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}
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}
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struct GSUB_accelerator_t : Layout::GSUB::GSUB::accelerator_t {
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GSUB_accelerator_t (hb_face_t *face) : Layout::GSUB::GSUB::accelerator_t (face) {}
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};
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}
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#endif /* OT_LAYOUT_GSUB_GSUB_HH */
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