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-rw-r--r--gfx/harfbuzz/src/OT/Layout/GSUB/SubstLookupSubTable.hh77
1 files changed, 77 insertions, 0 deletions
diff --git a/gfx/harfbuzz/src/OT/Layout/GSUB/SubstLookupSubTable.hh b/gfx/harfbuzz/src/OT/Layout/GSUB/SubstLookupSubTable.hh
new file mode 100644
index 0000000000..a525fba039
--- /dev/null
+++ b/gfx/harfbuzz/src/OT/Layout/GSUB/SubstLookupSubTable.hh
@@ -0,0 +1,77 @@
+#ifndef OT_LAYOUT_GSUB_SUBSTLOOKUPSUBTABLE_HH
+#define OT_LAYOUT_GSUB_SUBSTLOOKUPSUBTABLE_HH
+
+#include "Common.hh"
+#include "SingleSubst.hh"
+#include "MultipleSubst.hh"
+#include "AlternateSubst.hh"
+#include "LigatureSubst.hh"
+#include "ContextSubst.hh"
+#include "ChainContextSubst.hh"
+#include "ExtensionSubst.hh"
+#include "ReverseChainSingleSubst.hh"
+
+namespace OT {
+namespace Layout {
+namespace GSUB_impl {
+
+struct SubstLookupSubTable
+{
+ friend struct ::OT::Lookup;
+ friend struct SubstLookup;
+
+ protected:
+ union {
+ SingleSubst single;
+ MultipleSubst multiple;
+ AlternateSubst alternate;
+ LigatureSubst ligature;
+ ContextSubst context;
+ ChainContextSubst chainContext;
+ ExtensionSubst extension;
+ ReverseChainSingleSubst reverseChainContextSingle;
+ } u;
+ public:
+ DEFINE_SIZE_MIN (0);
+
+ enum Type {
+ Single = 1,
+ Multiple = 2,
+ Alternate = 3,
+ Ligature = 4,
+ Context = 5,
+ ChainContext = 6,
+ Extension = 7,
+ ReverseChainSingle = 8
+ };
+
+ template <typename context_t, typename ...Ts>
+ typename context_t::return_t dispatch (context_t *c, unsigned int lookup_type, Ts&&... ds) const
+ {
+ TRACE_DISPATCH (this, lookup_type);
+ switch (lookup_type) {
+ case Single: return_trace (u.single.dispatch (c, std::forward<Ts> (ds)...));
+ case Multiple: return_trace (u.multiple.dispatch (c, std::forward<Ts> (ds)...));
+ case Alternate: return_trace (u.alternate.dispatch (c, std::forward<Ts> (ds)...));
+ case Ligature: return_trace (u.ligature.dispatch (c, std::forward<Ts> (ds)...));
+ case Context: return_trace (u.context.dispatch (c, std::forward<Ts> (ds)...));
+ case ChainContext: return_trace (u.chainContext.dispatch (c, std::forward<Ts> (ds)...));
+ case Extension: return_trace (u.extension.dispatch (c, std::forward<Ts> (ds)...));
+ case ReverseChainSingle: return_trace (u.reverseChainContextSingle.dispatch (c, std::forward<Ts> (ds)...));
+ default: return_trace (c->default_return_value ());
+ }
+ }
+
+ bool intersects (const hb_set_t *glyphs, unsigned int lookup_type) const
+ {
+ hb_intersects_context_t c (glyphs);
+ return dispatch (&c, lookup_type);
+ }
+};
+
+
+}
+}
+}
+
+#endif /* HB_OT_LAYOUT_GSUB_SUBSTLOOKUPSUBTABLE_HH */