From 18939487d04dba86880b0af8e89cf2cc44a431f5 Mon Sep 17 00:00:00 2001 From: Behdad Esfahbod Date: Tue, 4 Aug 2009 14:27:56 -0400 Subject: [PATCH] [HB] Fix Extension sanitize() --- src/hb-ot-layout-gpos-private.hh | 3 ++- src/hb-ot-layout-gsub-private.hh | 3 ++- src/hb-ot-layout-gsubgpos-private.hh | 2 +- 3 files changed, 5 insertions(+), 3 deletions(-) diff --git a/src/hb-ot-layout-gpos-private.hh b/src/hb-ot-layout-gpos-private.hh index 3229efc..5648160 100644 --- a/src/hb-ot-layout-gpos-private.hh +++ b/src/hb-ot-layout-gpos-private.hh @@ -1525,7 +1525,8 @@ inline bool ExtensionPos::apply (APPLY_ARG_DEF) const inline bool ExtensionPos::sanitize (SANITIZE_ARG_DEF) { return Extension::sanitize (SANITIZE_ARG) && - DECONST_CAST (PosLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG); + (&(Extension::get_subtable ()) == &Null(LookupSubTable) || + DECONST_CAST (PosLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG)); } static inline bool position_lookup (APPLY_ARG_DEF, unsigned int lookup_index) diff --git a/src/hb-ot-layout-gsub-private.hh b/src/hb-ot-layout-gsub-private.hh index b221f6f..a8977ac 100644 --- a/src/hb-ot-layout-gsub-private.hh +++ b/src/hb-ot-layout-gsub-private.hh @@ -862,7 +862,8 @@ inline bool ExtensionSubst::apply (APPLY_ARG_DEF) const inline bool ExtensionSubst::sanitize (SANITIZE_ARG_DEF) { return Extension::sanitize (SANITIZE_ARG) && - DECONST_CAST (SubstLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG); + (&(Extension::get_subtable ()) == &Null(LookupSubTable) || + DECONST_CAST (SubstLookupSubTable, get_subtable (), 0).sanitize (SANITIZE_ARG)); } static inline bool substitute_lookup (APPLY_ARG_DEF, unsigned int lookup_index) diff --git a/src/hb-ot-layout-gsubgpos-private.hh b/src/hb-ot-layout-gsubgpos-private.hh index ec305e3..4a1ab24 100644 --- a/src/hb-ot-layout-gsubgpos-private.hh +++ b/src/hb-ot-layout-gsubgpos-private.hh @@ -769,7 +769,7 @@ struct ExtensionFormat1 { friend struct Extension; - private: + protected: inline unsigned int get_type (void) const { return extensionLookupType; } inline unsigned int get_offset (void) const { return (extensionOffset[0] << 16) + extensionOffset[1]; } inline const LookupSubTable& get_subtable (void) const -- 2.7.4