| /* |
| * 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| /* |
| * |
| * (C) Copyright IBM Corp. 1998 - 2004 - All Rights Reserved |
| * |
| */ |
| |
| |
| #include "LETypes.h" |
| #include "LayoutTables.h" |
| #include "MorphTables.h" |
| #include "SubtableProcessor.h" |
| #include "IndicRearrangementProcessor.h" |
| #include "ContextualGlyphSubstProc.h" |
| #include "LigatureSubstProc.h" |
| #include "NonContextualGlyphSubstProc.h" |
| //#include "ContextualGlyphInsertionProcessor.h" |
| #include "LEGlyphStorage.h" |
| #include "LESwaps.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| void MorphTableHeader::process(LEGlyphStorage &glyphStorage) const |
| { |
| const ChainHeader *chainHeader = chains; |
| le_uint32 chainCount = SWAPL(this->nChains); |
| le_uint32 chain; |
| |
| for (chain = 0; chain < chainCount; chain += 1) { |
| FeatureFlags defaultFlags = SWAPL(chainHeader->defaultFlags); |
| le_uint32 chainLength = SWAPL(chainHeader->chainLength); |
| le_int16 nFeatureEntries = SWAPW(chainHeader->nFeatureEntries); |
| le_int16 nSubtables = SWAPW(chainHeader->nSubtables); |
| const MorphSubtableHeader *subtableHeader = |
| (const MorphSubtableHeader *)&chainHeader->featureTable[nFeatureEntries]; |
| le_int16 subtable; |
| |
| for (subtable = 0; subtable < nSubtables; subtable += 1) { |
| le_int16 length = SWAPW(subtableHeader->length); |
| SubtableCoverage coverage = SWAPW(subtableHeader->coverage); |
| FeatureFlags subtableFeatures = SWAPL(subtableHeader->subtableFeatures); |
| |
| // should check coverage more carefully... |
| if ((coverage & scfVertical) == 0 && (subtableFeatures & defaultFlags) != 0) { |
| subtableHeader->process(glyphStorage); |
| } |
| |
| subtableHeader = (const MorphSubtableHeader *) ((char *)subtableHeader + length); |
| } |
| |
| chainHeader = (const ChainHeader *)((char *)chainHeader + chainLength); |
| } |
| } |
| |
| void MorphSubtableHeader::process(LEGlyphStorage &glyphStorage) const |
| { |
| SubtableProcessor *processor = NULL; |
| |
| switch (SWAPW(coverage) & scfTypeMask) |
| { |
| case mstIndicRearrangement: |
| processor = new IndicRearrangementProcessor(this); |
| break; |
| |
| case mstContextualGlyphSubstitution: |
| processor = new ContextualGlyphSubstitutionProcessor(this); |
| break; |
| |
| case mstLigatureSubstitution: |
| processor = new LigatureSubstitutionProcessor(this); |
| break; |
| |
| case mstReservedUnused: |
| break; |
| |
| case mstNonContextualGlyphSubstitution: |
| processor = NonContextualGlyphSubstitutionProcessor::createInstance(this); |
| break; |
| |
| /* |
| case mstContextualGlyphInsertion: |
| processor = new ContextualGlyphInsertionProcessor(this); |
| break; |
| */ |
| |
| default: |
| break; |
| } |
| |
| if (processor != NULL) { |
| processor->process(glyphStorage); |
| delete processor; |
| } |
| } |
| |
| U_NAMESPACE_END |