Make top-byte of unicode_props available to be used differently per-GC
diff --git a/src/hb-ot-layout-private.hh b/src/hb-ot-layout-private.hh
index 43a8bc1..8e56803 100644
--- a/src/hb-ot-layout-private.hh
+++ b/src/hb-ot-layout-private.hh
@@ -278,13 +278,15 @@
_hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info,
unsigned int modified_class)
{
+ if (unlikely (!_hb_glyph_info_is_unicode_mark (info)))
+ return;
info->unicode_props() = (modified_class<<8) | (info->unicode_props() & 0xFF);
}
static inline unsigned int
_hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info)
{
- return info->unicode_props()>>8;
+ return _hb_glyph_info_is_unicode_mark (info) ? info->unicode_props()>>8 : 0;
}
static inline bool _hb_glyph_info_ligated (const hb_glyph_info_t *info);
