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/*
* @(#)MorphTables.h 1.5 00/03/15
*
* (C) Copyright IBM Corp. 1998, 1999, 2000, 2001 - All Rights Reserved
*
*/
#ifndef __MORPHTABLES_H
#define __MORPHTABLES_H
#include "LETypes.h"
#include "LayoutTables.h"
U_NAMESPACE_BEGIN
typedef le_uint32 FeatureFlags;
typedef le_int16 FeatureType;
typedef le_int16 FeatureSetting;
struct FeatureTableEntry
{
FeatureType featureType;
FeatureSetting featureSetting;
FeatureFlags enableFlags;
FeatureFlags disableFlags;
};
struct ChainHeader
{
FeatureFlags defaultFlags;
le_uint32 chainLength;
le_int16 nFeatureEntries;
le_int16 nSubtables;
FeatureTableEntry featureTable[ANY_NUMBER];
};
struct MorphTableHeader
{
le_int32 version;
le_uint32 nChains;
ChainHeader chains[ANY_NUMBER];
void process(LEGlyphID *glyphs, le_int32 *glyphIndices, le_int32 glyphCount) const;
};
typedef le_int16 SubtableCoverage;
enum SubtableCoverageFlags
{
scfVertical = 0x8000,
scfReverse = 0x4000,
scfIgnoreVt = 0x2000,
scfReserved = 0x1FF8,
scfTypeMask = 0x0007
};
enum MorphSubtableType
{
mstIndicRearrangement = 0,
mstContextualGlyphSubstitution = 1,
mstLigatureSubstitution = 2,
mstReservedUnused = 3,
mstNonContextualGlyphSubstitution = 4,
mstContextualGlyphInsertion = 5
};
struct MorphSubtableHeader
{
le_int16 length;
SubtableCoverage coverage;
FeatureFlags subtableFeatures;
void process(LEGlyphID *glyphs, le_int32 *glyphIndices, le_int32 glyphCount) const;
};
U_NAMESPACE_END
#endif
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