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