| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Fri, 14 May 2010 17:40:32 +0300 | |
| changeset 24 | 71313a964664 |
| parent 0 | 1fb32624e06b |
| permissions | -rw-r--r-- |
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/* |
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* |
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* (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved |
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* |
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*/ |
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#ifndef __LOOKUPTABLES_H |
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#define __LOOKUPTABLES_H |
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/** |
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* \file |
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* \internal |
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*/ |
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#include "LETypes.h" |
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#include "LayoutTables.h" |
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U_NAMESPACE_BEGIN |
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enum LookupTableFormat |
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{
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ltfSimpleArray = 0, |
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ltfSegmentSingle = 2, |
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ltfSegmentArray = 4, |
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ltfSingleTable = 6, |
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ltfTrimmedArray = 8 |
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}; |
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typedef le_int16 LookupValue; |
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struct LookupTable |
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{
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le_int16 format; |
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}; |
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struct LookupSegment |
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{
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TTGlyphID lastGlyph; |
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TTGlyphID firstGlyph; |
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LookupValue value; |
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}; |
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struct LookupSingle |
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{
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TTGlyphID glyph; |
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LookupValue value; |
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}; |
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struct BinarySearchLookupTable : LookupTable |
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{
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le_int16 unitSize; |
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le_int16 nUnits; |
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le_int16 searchRange; |
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le_int16 entrySelector; |
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le_int16 rangeShift; |
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const LookupSegment *lookupSegment(const LookupSegment *segments, LEGlyphID glyph) const; |
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const LookupSingle *lookupSingle(const LookupSingle *entries, LEGlyphID glyph) const; |
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}; |
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struct SimpleArrayLookupTable : LookupTable |
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{
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LookupValue valueArray[ANY_NUMBER]; |
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}; |
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struct SegmentSingleLookupTable : BinarySearchLookupTable |
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{
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LookupSegment segments[ANY_NUMBER]; |
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}; |
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struct SegmentArrayLookupTable : BinarySearchLookupTable |
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{
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LookupSegment segments[ANY_NUMBER]; |
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}; |
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struct SingleTableLookupTable : BinarySearchLookupTable |
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{
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LookupSingle entries[ANY_NUMBER]; |
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}; |
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struct TrimmedArrayLookupTable : LookupTable |
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{
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TTGlyphID firstGlyph; |
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TTGlyphID glyphCount; |
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LookupValue valueArray[ANY_NUMBER]; |
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}; |
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U_NAMESPACE_END |
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#endif |