scuffed-code/icu4c/source/layout/Lookups.cpp
Steven R. Loomis f2fbc8c394 ICU-10107 LayoutEngine improvements
X-SVN-Rev: 33535
2013-04-18 21:24:51 +00:00

47 lines
1.6 KiB
C++

/*
*
* (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
*
*/
#include "LETypes.h"
#include "OpenTypeTables.h"
#include "Lookups.h"
#include "CoverageTables.h"
#include "LESwaps.h"
U_NAMESPACE_BEGIN
const LEReferenceTo<LookupTable> LookupListTable::getLookupTable(const LEReferenceTo<LookupListTable> &base, le_uint16 lookupTableIndex, LEErrorCode &success) const
{
LEReferenceToArrayOf<Offset> lookupTableOffsetArrayRef(base, success, (const Offset*)&lookupTableOffsetArray, SWAPW(lookupCount));
if(LE_FAILURE(success) || lookupTableIndex>lookupTableOffsetArrayRef.getCount()) {
return LEReferenceTo<LookupTable>();
} else {
return LEReferenceTo<LookupTable>(base, success, SWAPW(lookupTableOffsetArrayRef.getObject(lookupTableIndex, success)));
}
}
const LEReferenceTo<LookupSubtable> LookupTable::getLookupSubtable(const LEReferenceTo<LookupTable> &base, le_uint16 subtableIndex, LEErrorCode &success) const
{
LEReferenceToArrayOf<Offset> subTableOffsetArrayRef(base, success, (const Offset*)&subTableOffsetArray, SWAPW(subTableCount));
if(LE_FAILURE(success) || subtableIndex>subTableOffsetArrayRef.getCount()) {
return LEReferenceTo<LookupSubtable>();
} else {
return LEReferenceTo<LookupSubtable>(base, success, SWAPW(subTableOffsetArrayRef.getObject(subtableIndex, success)));
}
}
le_int32 LookupSubtable::getGlyphCoverage(const LEReferenceTo<LookupSubtable> &base, Offset tableOffset, LEGlyphID glyphID, LEErrorCode &success) const
{
const LEReferenceTo<CoverageTable> coverageTable(base, success, SWAPW(tableOffset));
if(LE_FAILURE(success)) return 0;
return coverageTable->getGlyphCoverage(glyphID);
}
U_NAMESPACE_END