SegmentArrayProcessor.cpp revision 12949:7b7c731a73d1
1/* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. Oracle designates this 7 * particular file as subject to the "Classpath" exception as provided 8 * by Oracle in the LICENSE file that accompanied this code. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26/* 27 * 28 * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved 29 * 30 */ 31 32#include "LETypes.h" 33#include "MorphTables.h" 34#include "SubtableProcessor.h" 35#include "NonContextualGlyphSubst.h" 36#include "NonContextualGlyphSubstProc.h" 37#include "SegmentArrayProcessor.h" 38#include "LEGlyphStorage.h" 39#include "LESwaps.h" 40 41U_NAMESPACE_BEGIN 42 43UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SegmentArrayProcessor) 44 45SegmentArrayProcessor::SegmentArrayProcessor() 46{ 47} 48 49SegmentArrayProcessor::SegmentArrayProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success) 50 : NonContextualGlyphSubstitutionProcessor(morphSubtableHeader, success) 51{ 52 LEReferenceTo<NonContextualGlyphSubstitutionHeader> header(morphSubtableHeader, success); 53 segmentArrayLookupTable = LEReferenceTo<SegmentArrayLookupTable>(morphSubtableHeader, success, (const SegmentArrayLookupTable*)&header->table); 54} 55 56SegmentArrayProcessor::~SegmentArrayProcessor() 57{ 58} 59 60void SegmentArrayProcessor::process(LEGlyphStorage &glyphStorage, LEErrorCode &success) 61{ 62 const LookupSegment *segments = segmentArrayLookupTable->segments; 63 le_int32 glyphCount = glyphStorage.getGlyphCount(); 64 le_int32 glyph; 65 66 if (LE_FAILURE(success)) return; 67 68 for (glyph = 0; glyph < glyphCount; glyph += 1) { 69 LEGlyphID thisGlyph = glyphStorage[glyph]; 70 const LookupSegment *lookupSegment = segmentArrayLookupTable->lookupSegment(segmentArrayLookupTable, segments, thisGlyph, success); 71 72 if (lookupSegment != NULL) { 73 TTGlyphID firstGlyph = SWAPW(lookupSegment->firstGlyph); 74 le_int16 offset = SWAPW(lookupSegment->value); 75 76 if (offset != 0) { 77 LEReferenceToArrayOf<TTGlyphID> glyphArray(subtableHeader, success, offset, LE_UNBOUNDED_ARRAY); 78 if (LE_FAILURE(success)) { continue; } 79 TTGlyphID newGlyph = SWAPW(glyphArray(LE_GET_GLYPH(thisGlyph) - firstGlyph, success)); 80 glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph); 81 } 82 } 83 } 84} 85 86U_NAMESPACE_END 87