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      1 /*
      2  *
      3  * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
      4  *
      5  */
      6 
      7 #include "LETypes.h"
      8 #include "OpenTypeTables.h"
      9 #include "Lookups.h"
     10 #include "CoverageTables.h"
     11 #include "LESwaps.h"
     12 
     13 U_NAMESPACE_BEGIN
     14 
     15 const LEReferenceTo<LookupTable> LookupListTable::getLookupTable(const LEReferenceTo<LookupListTable> &base, le_uint16 lookupTableIndex, LEErrorCode &success) const
     16 {
     17   LEReferenceToArrayOf<Offset> lookupTableOffsetArrayRef(base, success, (const Offset*)&lookupTableOffsetArray, SWAPW(lookupCount));
     18 
     19   if(LE_FAILURE(success) || lookupTableIndex>lookupTableOffsetArrayRef.getCount()) {
     20     return LEReferenceTo<LookupTable>();
     21   } else {
     22     return LEReferenceTo<LookupTable>(base, success, SWAPW(lookupTableOffsetArrayRef.getObject(lookupTableIndex, success)));
     23   }
     24 }
     25 
     26 const LEReferenceTo<LookupSubtable> LookupTable::getLookupSubtable(const LEReferenceTo<LookupTable> &base, le_uint16 subtableIndex, LEErrorCode &success) const
     27 {
     28   LEReferenceToArrayOf<Offset> subTableOffsetArrayRef(base, success, (const Offset*)&subTableOffsetArray, SWAPW(subTableCount));
     29 
     30   if(LE_FAILURE(success) || subtableIndex>subTableOffsetArrayRef.getCount()) {
     31     return LEReferenceTo<LookupSubtable>();
     32   } else {
     33     return LEReferenceTo<LookupSubtable>(base, success, SWAPW(subTableOffsetArrayRef.getObject(subtableIndex, success)));
     34   }
     35 }
     36 
     37 le_int32 LookupSubtable::getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const
     38 {
     39   const LEReferenceTo<CoverageTable> coverageTable(base, success, SWAPW(tableOffset));
     40 
     41   if(LE_FAILURE(success)) return 0;
     42 
     43   return coverageTable->getGlyphCoverage(glyphID);
     44 }
     45 
     46 U_NAMESPACE_END
     47