jdk/src/share/native/sun/font/layout/TrimmedArrayProcessor.cpp

/*
 * 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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

/*
 *
 * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
 *
 */

#include "LETypes.h"
#include "MorphTables.h"
#include "SubtableProcessor.h"
#include "NonContextualGlyphSubst.h"
#include "NonContextualGlyphSubstProc.h"
#include "TrimmedArrayProcessor.h"
#include "LEGlyphStorage.h"
#include "LESwaps.h"

TrimmedArrayProcessor::TrimmedArrayProcessor()
{
}

TrimmedArrayProcessor::TrimmedArrayProcessor(const MorphSubtableHeader *morphSubtableHeader)
  : NonContextualGlyphSubstitutionProcessor(morphSubtableHeader)
{
    const NonContextualGlyphSubstitutionHeader *header = (const NonContextualGlyphSubstitutionHeader *) morphSubtableHeader;

    trimmedArrayLookupTable = (const TrimmedArrayLookupTable *) &header->table;
    firstGlyph = SWAPW(trimmedArrayLookupTable->firstGlyph);
    lastGlyph = firstGlyph + SWAPW(trimmedArrayLookupTable->glyphCount);
}

TrimmedArrayProcessor::~TrimmedArrayProcessor()
{
}

void TrimmedArrayProcessor::process(LEGlyphStorage &glyphStorage)
{
    le_int32 glyphCount = glyphStorage.getGlyphCount();
    le_int32 glyph;

    for (glyph = 0; glyph < glyphCount; glyph += 1) {
        LEGlyphID thisGlyph = glyphStorage[glyph];
        TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(thisGlyph);

        if ((ttGlyph > firstGlyph) && (ttGlyph < lastGlyph)) {
            TTGlyphID newGlyph = SWAPW(trimmedArrayLookupTable->valueArray[ttGlyph - firstGlyph]);

            glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph);
        }
    }
}