--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fontservices/textshaperplugin/IcuSource/layout/LookupTables.h	Tue Feb 02 02:02:46 2010 +0200
@@ -0,0 +1,90 @@
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
+ *
+ */
+
+#ifndef __LOOKUPTABLES_H
+#define __LOOKUPTABLES_H
+
+/**
+ * \file
+ * \internal
+ */
+
+#include "LETypes.h"
+#include "LayoutTables.h"
+
+U_NAMESPACE_BEGIN
+
+enum LookupTableFormat
+{
+    ltfSimpleArray      = 0,
+    ltfSegmentSingle    = 2,
+    ltfSegmentArray     = 4,
+    ltfSingleTable      = 6,
+    ltfTrimmedArray     = 8
+};
+
+typedef le_int16 LookupValue;
+
+struct LookupTable
+{
+    le_int16 format;
+};
+
+struct LookupSegment
+{
+    TTGlyphID   lastGlyph;
+    TTGlyphID   firstGlyph;
+    LookupValue value;
+};
+
+struct LookupSingle
+{
+    TTGlyphID   glyph;
+    LookupValue value;
+};
+
+struct BinarySearchLookupTable : LookupTable
+{
+    le_int16 unitSize;
+    le_int16 nUnits;
+    le_int16 searchRange;
+    le_int16 entrySelector;
+    le_int16 rangeShift;
+
+    const LookupSegment *lookupSegment(const LookupSegment *segments, LEGlyphID glyph) const;
+
+    const LookupSingle *lookupSingle(const LookupSingle *entries, LEGlyphID glyph) const;
+};
+
+struct SimpleArrayLookupTable : LookupTable
+{
+    LookupValue valueArray[ANY_NUMBER];
+};
+
+struct SegmentSingleLookupTable : BinarySearchLookupTable
+{
+    LookupSegment segments[ANY_NUMBER];
+};
+
+struct SegmentArrayLookupTable : BinarySearchLookupTable
+{
+    LookupSegment segments[ANY_NUMBER];
+};
+
+struct SingleTableLookupTable : BinarySearchLookupTable
+{
+    LookupSingle entries[ANY_NUMBER];
+};
+
+struct TrimmedArrayLookupTable : LookupTable
+{
+    TTGlyphID   firstGlyph;
+    TTGlyphID   glyphCount;
+    LookupValue valueArray[ANY_NUMBER];
+};
+
+U_NAMESPACE_END
+#endif