diff options
Diffstat (limited to 'Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp')
-rw-r--r-- | Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp b/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp new file mode 100644 index 00000000000..1fb281300ed --- /dev/null +++ b/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp @@ -0,0 +1,51 @@ +/* + * + * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved + * + */ + +#include "LETypes.h" +#include "LEFontInstance.h" +#include "OpenTypeTables.h" +#include "GlyphSubstitutionTables.h" +#include "GlyphIterator.h" +#include "LookupProcessor.h" +#include "SubstitutionLookups.h" +#include "CoverageTables.h" +#include "LESwaps.h" + +U_NAMESPACE_BEGIN + +/* + NOTE: This could be optimized somewhat by keeping track + of the previous sequenceIndex in the loop and doing next() + or prev() of the delta between that and the current + sequenceIndex instead of always resetting to the front. +*/ +void SubstitutionLookup::applySubstitutionLookups( + LookupProcessor *lookupProcessor, + SubstitutionLookupRecord *substLookupRecordArray, + le_uint16 substCount, + GlyphIterator *glyphIterator, + const LEFontInstance *fontInstance, + le_int32 position, + LEErrorCode& success) +{ + if (LE_FAILURE(success)) { + return; + } + + GlyphIterator tempIterator(*glyphIterator); + + for (le_uint16 subst = 0; subst < substCount && LE_SUCCESS(success); subst += 1) { + le_uint16 sequenceIndex = SWAPW(substLookupRecordArray[subst].sequenceIndex); + le_uint16 lookupListIndex = SWAPW(substLookupRecordArray[subst].lookupListIndex); + + tempIterator.setCurrStreamPosition(position); + tempIterator.next(sequenceIndex); + + lookupProcessor->applySingleLookup(lookupListIndex, &tempIterator, fontInstance, success); + } +} + +U_NAMESPACE_END |