/* * %W% %E% * * (C) Copyright IBM Corp. 2008-2013 - All Rights Reserved * */ #include "LETypes.h" #include "OpenTypeTables.h" #include "GlyphSubstitutionTables.h" #include "LookupProcessor.h" #include "ExtensionSubtables.h" #include "GlyphIterator.h" #include "LESwaps.h" U_NAMESPACE_BEGIN // read a 32-bit value that might only be 16-bit-aligned in memory static inline le_uint32 READ_LONG(le_uint32 code) { le_uint16* first = ((le_uint16*)&code); le_uint16* second = (((le_uint16*)&code) + 1); return (le_uint32)((SWAPW(*first) << 16) + SWAPW(*second)); } // FIXME: should look at the format too... maybe have a sub-class for it? le_uint32 ExtensionSubtable::process(const LookupProcessor *lookupProcessor, const LETableReference &base, le_uint16 lookupType, // Google patch: add base GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const { // Google patch: remove thisRef if (LE_FAILURE(success)) { return 0; } le_uint16 elt = SWAPW(extensionLookupType); if (elt != lookupType) { le_uint32 extOffset = READ_LONG(extensionOffset); LEReferenceTo<LookupSubtable> subtable(base, success, extOffset); // Google patch: s/thisRef/base/ if(LE_SUCCESS(success)) { return lookupProcessor->applySubtable(subtable, elt, glyphIterator, fontInstance, success); } } return 0; } U_NAMESPACE_END