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[HB] Start MarkFilteringSet support

This commit is contained in:
Behdad Esfahbod 2009-05-26 13:04:59 -04:00
parent 62964afcec
commit d7df42d7ee
1 changed files with 19 additions and 5 deletions
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24
src/hb-ot-layout-common-private.h
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@ -158,7 +158,8 @@ struct LookupFlag : USHORT
IgnoreBaseGlyphs = 0x0002u, IgnoreBaseGlyphs = 0x0002u,
IgnoreLigatures = 0x0004u, IgnoreLigatures = 0x0004u,
IgnoreMarks = 0x0008u, IgnoreMarks = 0x0008u,
Reserved = 0x00F0u, UseMarkFilteringSet = 0x0010u,
Reserved = 0x00E0u,
MarkAttachmentType = 0xFF00u, MarkAttachmentType = 0xFF00u,
}; };
}; };
@ -177,12 +178,25 @@ struct Lookup
inline unsigned int get_subtable_count (void) const { return subTable.len; } inline unsigned int get_subtable_count (void) const { return subTable.len; }
inline unsigned int get_type (void) const { return lookupType; } inline unsigned int get_type (void) const { return lookupType; }
inline unsigned int get_flag (void) const { return lookupFlag; } inline unsigned int get_flag (void) const
{
unsigned int flag = lookupFlag;
if (HB_UNLIKELY (flag & LookupFlag::UseMarkFilteringSet))
{
const USHORT &markFilteringSet = *(const USHORT*)
((const char *) &subTable + subTable.get_size ());
flag += markFilteringSet << 16;
}
return flag;
}
USHORT lookupType; /* Different enumerations for GSUB and GPOS */ USHORT lookupType; /* Different enumerations for GSUB and GPOS */
USHORT lookupFlag; /* Lookup qualifiers */ USHORT lookupFlag; /* Lookup qualifiers */
OffsetArrayOf<LookupSubTable> OffsetArrayOf<LookupSubTable>
subTable; /* Array of SubTables */ subTable; /* Array of SubTables */
USHORT markFilteringSetX[0]; /* Index (base 0) into GDEF mark glyph sets
* structure. This field is only present if bit
* UseMarkFilteringSet of lookup flags is set. */
}; };
ASSERT_SIZE (Lookup, 6); ASSERT_SIZE (Lookup, 6);