1/*
2 *
3 * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
4 *
5 */
6
7#ifndef __LOOKUPS_H
8#define __LOOKUPS_H
9
10/**
11 * \file
12 * \internal
13 */
14
15#include "LETypes.h"
16#include "OpenTypeTables.h"
17
18U_NAMESPACE_BEGIN
19
20enum LookupFlags
21{
22    lfBaselineIsLogicalEnd  = 0x0001,  // The MS spec. calls this flag "RightToLeft" but this name is more accurate
23    lfIgnoreBaseGlyphs      = 0x0002,
24    lfIgnoreLigatures       = 0x0004,
25    lfIgnoreMarks           = 0x0008,
26    lfReservedMask          = 0x00F0,
27    lfMarkAttachTypeMask    = 0xFF00,
28    lfMarkAttachTypeShift   = 8
29};
30
31struct LookupSubtable
32{
33    le_uint16 subtableFormat;
34    Offset    coverageTableOffset;
35
36    inline le_int32  getGlyphCoverage(LEGlyphID glyphID) const;
37
38    le_int32  getGlyphCoverage(Offset tableOffset, LEGlyphID glyphID) const;
39};
40
41struct LookupTable
42{
43    le_uint16       lookupType;
44    le_uint16       lookupFlags;
45    le_uint16       subTableCount;
46    Offset          subTableOffsetArray[ANY_NUMBER];
47
48    const LookupSubtable  *getLookupSubtable(le_uint16 subtableIndex) const;
49};
50
51struct LookupListTable
52{
53    le_uint16   lookupCount;
54    Offset      lookupTableOffsetArray[ANY_NUMBER];
55
56    const LookupTable *getLookupTable(le_uint16 lookupTableIndex) const;
57};
58
59inline le_int32 LookupSubtable::getGlyphCoverage(LEGlyphID glyphID) const
60{
61    return getGlyphCoverage(coverageTableOffset, glyphID);
62}
63
64U_NAMESPACE_END
65#endif
66