jdk/src/share/native/sun/font/layout/SinglePositioningSubtables.cpp
author prr
Thu, 07 Mar 2013 10:02:20 -0800
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child 18256 79d3f8278a38
permissions -rw-r--r--
8001031: Better font processing Reviewed-by: srl, vadim
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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/*
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 *
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 * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved
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 *
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 */
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#include "LETypes.h"
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#include "LEFontInstance.h"
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#include "OpenTypeTables.h"
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#include "GlyphPositioningTables.h"
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#include "SinglePositioningSubtables.h"
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#include "ValueRecords.h"
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#include "GlyphIterator.h"
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#include "LESwaps.h"
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U_NAMESPACE_BEGIN
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le_uint32 SinglePositioningSubtable::process(const LEReferenceTo<SinglePositioningSubtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
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{
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    switch(SWAPW(subtableFormat))
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    {
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    case 0:
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        return 0;
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    case 1:
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    {
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      const LEReferenceTo<SinglePositioningFormat1Subtable> subtable(base, success, (const SinglePositioningFormat1Subtable *) this);
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      return subtable->process(subtable, glyphIterator, fontInstance, success);
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    }
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    case 2:
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    {
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      const LEReferenceTo<SinglePositioningFormat2Subtable> subtable(base, success, (const SinglePositioningFormat2Subtable *) this);
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      return subtable->process(subtable, glyphIterator, fontInstance, success);
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    }
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    default:
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        return 0;
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    }
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}
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le_uint32 SinglePositioningFormat1Subtable::process(const LEReferenceTo<SinglePositioningFormat1Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
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{
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    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
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    le_int32 coverageIndex = getGlyphCoverage(base, glyph, success);
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    if (coverageIndex >= 0) {
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        valueRecord.adjustPosition(SWAPW(valueFormat), (const char *) this, *glyphIterator, fontInstance);
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        return 1;
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    }
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    return 0;
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}
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le_uint32 SinglePositioningFormat2Subtable::process(const LEReferenceTo<SinglePositioningFormat2Subtable> &base, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance, LEErrorCode &success) const
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{
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    LEGlyphID glyph = glyphIterator->getCurrGlyphID();
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    le_int16 coverageIndex = (le_int16) getGlyphCoverage(base, glyph, success);
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    if (coverageIndex >= 0) {
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        valueRecordArray[0].adjustPosition(coverageIndex, SWAPW(valueFormat), (const char *) this, *glyphIterator, fontInstance);
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        return 1;
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    }
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    return 0;
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}
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U_NAMESPACE_END