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 * 29 * (C) Copyright IBM Corp. 1998-2003 - All Rights Reserved 30 * 31 */ 32 33#include "LETypes.h" 34#include "OpenTypeUtilities.h" 35#include "OpenTypeTables.h" 36#include "ICUFeatures.h" 37#include "LESwaps.h" 38 39U_NAMESPACE_BEGIN 40 41LEReferenceTo<FeatureTable> FeatureListTable::getFeatureTable(const LETableReference &base, le_uint16 featureIndex, LETag *featureTag, LEErrorCode &success) const 42{ 43 LEReferenceToArrayOf<FeatureRecord> 44 featureRecordArrayRef(base, success, featureRecordArray, SWAPW(featureCount)); 45 46 if (featureIndex >= SWAPW(featureCount) || LE_FAILURE(success)) { 47 success = LE_INDEX_OUT_OF_BOUNDS_ERROR; 48 return LEReferenceTo<FeatureTable>(); 49 } 50 51 Offset featureTableOffset = featureRecordArray[featureIndex].featureTableOffset; 52 53 *featureTag = SWAPT(featureRecordArray[featureIndex].featureTag); 54 55 return LEReferenceTo<FeatureTable>(base, success, SWAPW(featureTableOffset)); 56} 57 58#if 0 59/* 60 * Note: according to the OpenType Spec. v 1.4, the entries in the Feature 61 * List Table are sorted alphabetically by feature tag; however, there seem 62 * to be some fonts which have an unsorted list; that's why the binary search 63 * is #if 0'd out and replaced by a linear search. 64 * 65 * Also note: as of ICU 2.6, this method isn't called anyhow... 66 */ 67const FeatureTable *FeatureListTable::getFeatureTable(LETag featureTag) const 68{ 69#if 0 70 Offset featureTableOffset = 71 OpenTypeUtilities::getTagOffset(featureTag, (TagAndOffsetRecord *) featureRecordArray, SWAPW(featureCount)); 72 73 if (featureTableOffset == 0) { 74 return 0; 75 } 76 77 return (const FeatureTable *) ((char *) this + SWAPW(featureTableOffset)); 78#else 79 int count = SWAPW(featureCount); 80 81 for (int i = 0; i < count; i += 1) { 82 if (SWAPT(featureRecordArray[i].featureTag) == featureTag) { 83 return (const FeatureTable *) ((char *) this + SWAPW(featureRecordArray[i].featureTableOffset)); 84 } 85 } 86 87 return 0; 88#endif 89} 90#endif 91 92U_NAMESPACE_END 93