Mercurial > hg > openjdk > jdk8 > jdk
view src/share/native/sun/font/layout/SinglePositioningSubtables.cpp @ 9053:d4f4a9915357
8024530: Enhance font process resilience
Reviewed-by: mschoene, bae, srl, prr
author | prr |
---|---|
date | Thu, 17 Oct 2013 09:23:49 -0700 |
parents | 40c65c6711ee |
children |
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/* * 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. 1998-2005 - All Rights Reserved * */ #include "LETypes.h" #include "LEFontInstance.h" #include "OpenTypeTables.h" #include "GlyphPositioningTables.h" #include "SinglePositioningSubtables.h" #include "ValueRecords.h" #include "GlyphIterator.h" #include "LESwaps.h" U_NAMESPACE_BEGIN le_uint32 SinglePositioningSubtable::process(const LEReferenceTo<SinglePositioningSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const { switch(SWAPW(subtableFormat)) { case 0: return 0; case 1: { const LEReferenceTo<SinglePositioningFormat1Subtable> subtable(base, success, (const SinglePositioningFormat1Subtable *) this); return subtable->process(subtable, glyphIterator, fontInstance, success); } case 2: { const LEReferenceTo<SinglePositioningFormat2Subtable> subtable(base, success, (const SinglePositioningFormat2Subtable *) this); return subtable->process(subtable, glyphIterator, fontInstance, success); } default: return 0; } } le_uint32 SinglePositioningFormat1Subtable::process(const LEReferenceTo<SinglePositioningFormat1Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const { LEGlyphID glyph = glyphIterator->getCurrGlyphID(); le_int32 coverageIndex = getGlyphCoverage(base, glyph, success); if (LE_FAILURE(success)) { return 0; } if (coverageIndex >= 0) { valueRecord.adjustPosition(SWAPW(valueFormat), base, *glyphIterator, fontInstance, success); return 1; } return 0; } le_uint32 SinglePositioningFormat2Subtable::process(const LEReferenceTo<SinglePositioningFormat2Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const { LEGlyphID glyph = glyphIterator->getCurrGlyphID(); le_int16 coverageIndex = (le_int16) getGlyphCoverage(base, glyph, success); if (LE_FAILURE(success)) { return 0; } if (coverageIndex >= 0) { valueRecordArray[0].adjustPosition(coverageIndex, SWAPW(valueFormat), base, *glyphIterator, fontInstance, success); return 1; } return 0; } U_NAMESPACE_END