1 files changed, 32 insertions, 0 deletions
diff --git a/thirdparty/harfbuzz/src/OT/Layout/GPOS/Common.hh b/thirdparty/harfbuzz/src/OT/Layout/GPOS/Common.hh
new file mode 100644
index 0000000000..e16c06729d
--- /dev/null
+++ b/thirdparty/harfbuzz/src/OT/Layout/GPOS/Common.hh
@@ -0,0 +1,32 @@
+#ifndef OT_LAYOUT_GPOS_COMMON_HH
+#define OT_LAYOUT_GPOS_COMMON_HH
+
+namespace OT {
+namespace Layout {
+namespace GPOS_impl {
+
+enum attach_type_t {
+  ATTACH_TYPE_NONE      = 0X00,
+
+  /* Each attachment should be either a mark or a cursive; can't be both. */
+  ATTACH_TYPE_MARK      = 0X01,
+  ATTACH_TYPE_CURSIVE   = 0X02,
+};
+
+/* buffer **position** var allocations */
+#define attach_chain() var.i16[0] /* glyph to which this attaches to, relative to current glyphs; negative for going back, positive for forward. */
+#define attach_type() var.u8[2] /* attachment type */
+/* Note! if attach_chain() is zero, the value of attach_type() is irrelevant. */
+
+template<typename Iterator, typename SrcLookup>
+static void SinglePos_serialize (hb_serialize_context_t *c,
+                                 const SrcLookup *src,
+                                 Iterator it,
+                                 const hb_map_t *layout_variation_idx_map);
+
+
+}
+}
+}
+
+#endif  // OT_LAYOUT_GPOS_COMMON_HH