SegmentSingleProcessor.cpp

/*
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 * 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.
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/*
 *
 * (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 "SegmentSingleProcessor.h"
#include "LEGlyphStorage.h"
#include "LESwaps.h"

SegmentSingleProcessor::SegmentSingleProcessor()
{
}

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

    segmentSingleLookupTable = (const SegmentSingleLookupTable *) &header->table;
}

SegmentSingleProcessor::~SegmentSingleProcessor()
{
}

void SegmentSingleProcessor::process(LEGlyphStorage &glyphStorage)
{
    const LookupSegment *segments = segmentSingleLookupTable->segments;
    le_int32 glyphCount = glyphStorage.getGlyphCount();
    le_int32 glyph;

    for (glyph = 0; glyph < glyphCount; glyph += 1) {
        LEGlyphID thisGlyph = glyphStorage[glyph];
        const LookupSegment *lookupSegment = segmentSingleLookupTable->lookupSegment(segments, thisGlyph);

        if (lookupSegment != NULL) {
            TTGlyphID   newGlyph  = (TTGlyphID) LE_GET_GLYPH(thisGlyph) + SWAPW(lookupSegment->value);

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