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