0N/A/*
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A *
0N/A */
0N/A
0N/A/*
0N/A *
1693N/A *
1693N/A * (C) Copyright IBM Corp. 2002 - All Rights Reserved
0N/A *
0N/A */
0N/A
0N/A#include "LETypes.h"
0N/A#include "OpenTypeTables.h"
0N/A#include "GlyphSubstitutionTables.h"
0N/A#include "LookupProcessor.h"
0N/A#include "ExtensionSubtables.h"
0N/A#include "GlyphIterator.h"
0N/A#include "LESwaps.h"
0N/A
1693N/AU_NAMESPACE_BEGIN
1693N/A
3171N/A// read a 32-bit value that might only be 16-bit-aligned in memory
3171N/A#define READ_LONG(code) (le_uint32)((SWAPW(*(le_uint16*)&code) << 16) + SWAPW(*(((le_uint16*)&code) + 1)))
1693N/A
0N/A// FIXME: should look at the format too... maybe have a sub-class for it?
6371N/Ale_uint32 ExtensionSubtable::process(const LEReferenceTo<ExtensionSubtable> &thisRef,
6371N/A const LookupProcessor *lookupProcessor, le_uint16 lookupType,
3171N/A GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode& success) const
0N/A{
5980N/A
3171N/A if (LE_FAILURE(success)) {
3171N/A return 0;
3171N/A }
3171N/A
0N/A le_uint16 elt = SWAPW(extensionLookupType);
0N/A
0N/A if (elt != lookupType) {
3171N/A le_uint32 extOffset = READ_LONG(extensionOffset);
6371N/A LEReferenceTo<LookupSubtable> subtable(thisRef, success, extOffset);
0N/A
5980N/A if(LE_SUCCESS(success)) {
5980N/A return lookupProcessor->applySubtable(subtable, elt, glyphIterator, fontInstance, success);
5980N/A }
0N/A }
0N/A
0N/A return 0;
0N/A}
1693N/A
1693N/AU_NAMESPACE_END