ComponentGlyph = 4,
};
- STATIC_DEFINE_GET_FOR_DATA (GDEF);
- /* XXX check version here? */
+ STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GDEF, 1);
inline bool has_glyph_classes () const { return glyphClassDef != 0; }
inline hb_ot_layout_class_t get_glyph_class (hb_codepoint_t glyph) const { return (this+glyphClassDef).get_class (glyph); }
{
static const hb_tag_t Tag = HB_TAG ('G','P','O','S');
- STATIC_DEFINE_GET_FOR_DATA (GPOS);
- /* XXX check version here? */
+ STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GPOS, 1);
inline const PosLookup& get_lookup (unsigned int i) const
{
{
static const hb_tag_t Tag = HB_TAG ('G','S','U','B');
- STATIC_DEFINE_GET_FOR_DATA (GSUB);
- /* XXX check version here? */
+ STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GSUB, 1);
inline const SubstLookup& get_lookup (unsigned int i) const
{
static const hb_tag_t GSUBTag = HB_TAG ('G','S','U','B');
static const hb_tag_t GPOSTag = HB_TAG ('G','P','O','S');
- STATIC_DEFINE_GET_FOR_DATA (GSUBGPOS);
- /* XXX check version here? */
+ STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GSUBGPOS, 1);
DEFINE_TAG_LIST_INTERFACE (Script, script ); /* get_script_count (), get_script (i), get_script_tag (i) */
DEFINE_TAG_LIST_INTERFACE (Feature, feature); /* get_feature_count(), get_feature(i), get_feature_tag(i) */
DEFINE_TAG_FIND_INTERFACE (Script, script ); /* find_script_index (), get_script_by_tag (tag) */
DEFINE_TAG_FIND_INTERFACE (Feature, feature); /* find_feature_index(), get_feature_by_tag(tag) */
- private:
+ protected:
Fixed_Version version; /* Version of the GSUB/GPOS table--initially set
* to 0x00010000 */
OffsetTo<ScriptList>
{ \
if (HB_UNLIKELY (data == NULL)) return Null(Type); \
return (const Type&)*data; \
- } \
+ }
+/* Like get_for_data(), but checks major version first. */
+#define STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION(Type, Major) \
+ static inline const Type& get_for_data (const char *data) \
+ { \
+ if (HB_UNLIKELY (data == NULL)) return Null(Type); \
+ const Type& t = (const Type&)*data; \
+ if (HB_UNLIKELY (t.version.major () != Major)) return Null(Type); \
+ return t; \
+ }