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. and others 1998-2013 - All Rights Reserved
29 *
30 */
31
32 #include "LETypes.h"
33 #include "MorphTables.h"
34 #include "SubtableProcessor2.h"
35 #include "NonContextualGlyphSubst.h"
36 #include "NonContextualGlyphSubstProc2.h"
37 #include "SegmentArrayProcessor2.h"
38 #include "LEGlyphStorage.h"
39 #include "LESwaps.h"
40
41 U_NAMESPACE_BEGIN
42
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SegmentArrayProcessor2)43 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SegmentArrayProcessor2)
44
45 SegmentArrayProcessor2::SegmentArrayProcessor2()
46 {
47 }
48
SegmentArrayProcessor2(const LEReferenceTo<MorphSubtableHeader2> & morphSubtableHeader,LEErrorCode & success)49 SegmentArrayProcessor2::SegmentArrayProcessor2(const LEReferenceTo<MorphSubtableHeader2> &morphSubtableHeader, LEErrorCode &success)
50 : NonContextualGlyphSubstitutionProcessor2(morphSubtableHeader, success)
51 {
52 const LEReferenceTo<NonContextualGlyphSubstitutionHeader2> header(morphSubtableHeader, success);
53 segmentArrayLookupTable = LEReferenceTo<SegmentArrayLookupTable>(morphSubtableHeader, success, &header->table); // don't parent to 'header' as it is on the stack
54 }
55
~SegmentArrayProcessor2()56 SegmentArrayProcessor2::~SegmentArrayProcessor2()
57 {
58 }
59
process(LEGlyphStorage & glyphStorage,LEErrorCode & success)60 void SegmentArrayProcessor2::process(LEGlyphStorage &glyphStorage, LEErrorCode &success)
61 {
62 if (LE_FAILURE(success)) return;
63
64 const LookupSegment *segments = segmentArrayLookupTable->segments;
65 le_int32 glyphCount = glyphStorage.getGlyphCount();
66 le_int32 glyph;
67
68 if (LE_FAILURE(success)) return;
69
70 for (glyph = 0; glyph < glyphCount; glyph += 1) {
71 LEGlyphID thisGlyph = glyphStorage[glyph];
72 // lookupSegment already range checked by lookupSegment() function.
73 const LookupSegment *lookupSegment = segmentArrayLookupTable->lookupSegment(segmentArrayLookupTable, segments, thisGlyph, success);
74
75 if (lookupSegment != NULL&& LE_SUCCESS(success)) {
76 TTGlyphID firstGlyph = SWAPW(lookupSegment->firstGlyph);
77 TTGlyphID lastGlyph = SWAPW(lookupSegment->lastGlyph);
78 le_int16 offset = SWAPW(lookupSegment->value);
79 TTGlyphID thisGlyphId= LE_GET_GLYPH(thisGlyph);
80 LEReferenceToArrayOf<TTGlyphID> glyphArray(subtableHeader, success, offset, lastGlyph - firstGlyph + 1);
81 if (offset != 0 && thisGlyphId <= lastGlyph && thisGlyphId >= firstGlyph && LE_SUCCESS(success) ) {
82 TTGlyphID newGlyph = SWAPW(glyphArray[thisGlyphId]);
83 glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph);
84 }
85 }
86 }
87 }
88
89 U_NAMESPACE_END
90