| /* |
| * 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 |
| * |
| */ |
| |
| #ifndef __CONTEXTUALSUBSTITUTIONSUBTABLES_H |
| #define __CONTEXTUALSUBSTITUTIONSUBTABLES_H |
| |
| /** |
| * \file |
| * \internal |
| */ |
| |
| #include "LETypes.h" |
| #include "LEFontInstance.h" |
| #include "OpenTypeTables.h" |
| #include "GlyphSubstitutionTables.h" |
| #include "GlyphIterator.h" |
| #include "LookupProcessor.h" |
| |
| U_NAMESPACE_BEGIN |
| |
| struct SubstitutionLookupRecord |
| { |
| le_uint16 sequenceIndex; |
| le_uint16 lookupListIndex; |
| }; |
| |
| struct ContextualSubstitutionBase : GlyphSubstitutionSubtable |
| { |
| static le_bool matchGlyphIDs( |
| const TTGlyphID *glyphArray, le_uint16 glyphCount, GlyphIterator *glyphIterator, |
| le_bool backtrack = FALSE); |
| |
| static le_bool matchGlyphClasses( |
| const le_uint16 *classArray, le_uint16 glyphCount, GlyphIterator *glyphIterator, |
| const ClassDefinitionTable *classDefinitionTable, le_bool backtrack = FALSE); |
| |
| static le_bool matchGlyphCoverages( |
| const Offset *coverageTableOffsetArray, le_uint16 glyphCount, |
| GlyphIterator *glyphIterator, const char *offsetBase, le_bool backtrack = FALSE); |
| |
| static void applySubstitutionLookups( |
| const LookupProcessor *lookupProcessor, |
| const SubstitutionLookupRecord *substLookupRecordArray, |
| le_uint16 substCount, |
| GlyphIterator *glyphIterator, |
| const LEFontInstance *fontInstance, |
| le_int32 position); |
| }; |
| |
| struct ContextualSubstitutionSubtable : ContextualSubstitutionBase |
| { |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct ContextualSubstitutionFormat1Subtable : ContextualSubstitutionSubtable |
| { |
| le_uint16 subRuleSetCount; |
| Offset subRuleSetTableOffsetArray[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct SubRuleSetTable |
| { |
| le_uint16 subRuleCount; |
| Offset subRuleTableOffsetArray[ANY_NUMBER]; |
| |
| }; |
| |
| // NOTE: Multiple variable size arrays!! |
| struct SubRuleTable |
| { |
| le_uint16 glyphCount; |
| le_uint16 substCount; |
| TTGlyphID inputGlyphArray[ANY_NUMBER]; |
| //SubstitutionLookupRecord substLookupRecordArray[ANY_NUMBER]; |
| }; |
| |
| struct ContextualSubstitutionFormat2Subtable : ContextualSubstitutionSubtable |
| { |
| Offset classDefTableOffset; |
| le_uint16 subClassSetCount; |
| Offset subClassSetTableOffsetArray[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct SubClassSetTable |
| { |
| le_uint16 subClassRuleCount; |
| Offset subClassRuleTableOffsetArray[ANY_NUMBER]; |
| }; |
| |
| // NOTE: Multiple variable size arrays!! |
| struct SubClassRuleTable |
| { |
| le_uint16 glyphCount; |
| le_uint16 substCount; |
| le_uint16 classArray[ANY_NUMBER]; |
| //SubstitutionLookupRecord substLookupRecordArray[ANY_NUMBER]; |
| }; |
| |
| // NOTE: This isn't a subclass of GlyphSubstitutionSubtable 'cause |
| // it has an array of coverage tables instead of a single coverage table... |
| // |
| // NOTE: Multiple variable size arrays!! |
| struct ContextualSubstitutionFormat3Subtable |
| { |
| le_uint16 substFormat; |
| le_uint16 glyphCount; |
| le_uint16 substCount; |
| Offset coverageTableOffsetArray[ANY_NUMBER]; |
| //SubstitutionLookupRecord substLookupRecord[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct ChainingContextualSubstitutionSubtable : ContextualSubstitutionBase |
| { |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct ChainingContextualSubstitutionFormat1Subtable : ChainingContextualSubstitutionSubtable |
| { |
| le_uint16 chainSubRuleSetCount; |
| Offset chainSubRuleSetTableOffsetArray[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct ChainSubRuleSetTable |
| { |
| le_uint16 chainSubRuleCount; |
| Offset chainSubRuleTableOffsetArray[ANY_NUMBER]; |
| |
| }; |
| |
| // NOTE: Multiple variable size arrays!! |
| struct ChainSubRuleTable |
| { |
| le_uint16 backtrackGlyphCount; |
| TTGlyphID backtrackGlyphArray[ANY_NUMBER]; |
| //le_uint16 inputGlyphCount; |
| //TTGlyphID inputGlyphArray[ANY_NUMBER]; |
| //le_uint16 lookaheadGlyphCount; |
| //TTGlyphID lookaheadGlyphArray[ANY_NUMBER]; |
| //le_uint16 substCount; |
| //SubstitutionLookupRecord substLookupRecordArray[ANY_NUMBER]; |
| }; |
| |
| struct ChainingContextualSubstitutionFormat2Subtable : ChainingContextualSubstitutionSubtable |
| { |
| Offset backtrackClassDefTableOffset; |
| Offset inputClassDefTableOffset; |
| Offset lookaheadClassDefTableOffset; |
| le_uint16 chainSubClassSetCount; |
| Offset chainSubClassSetTableOffsetArray[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| struct ChainSubClassSetTable |
| { |
| le_uint16 chainSubClassRuleCount; |
| Offset chainSubClassRuleTableOffsetArray[ANY_NUMBER]; |
| }; |
| |
| // NOTE: Multiple variable size arrays!! |
| struct ChainSubClassRuleTable |
| { |
| le_uint16 backtrackGlyphCount; |
| le_uint16 backtrackClassArray[ANY_NUMBER]; |
| //le_uint16 inputGlyphCount; |
| //le_uint16 inputClassArray[ANY_NUMBER]; |
| //le_uint16 lookaheadGlyphCount; |
| //le_uint16 lookaheadClassArray[ANY_NUMBER]; |
| //le_uint16 substCount; |
| //SubstitutionLookupRecord substLookupRecordArray[ANY_NUMBER]; |
| }; |
| |
| // NOTE: This isn't a subclass of GlyphSubstitutionSubtable 'cause |
| // it has arrays of coverage tables instead of a single coverage table... |
| // |
| // NOTE: Multiple variable size arrays!! |
| struct ChainingContextualSubstitutionFormat3Subtable |
| { |
| le_uint16 substFormat; |
| le_uint16 backtrackGlyphCount; |
| Offset backtrackCoverageTableOffsetArray[ANY_NUMBER]; |
| //le_uint16 inputGlyphCount; |
| //Offset inputCoverageTableOffsetArray[ANY_NUMBER]; |
| //le_uint16 lookaheadGlyphCount; |
| //le_uint16 lookaheadCoverageTableOffsetArray[ANY_NUMBER]; |
| //le_uint16 substCount; |
| //SubstitutionLookupRecord substLookupRecord[ANY_NUMBER]; |
| |
| le_uint32 process(const LookupProcessor *lookupProcessor, GlyphIterator *glyphIterator, const LEFontInstance *fontInstance) const; |
| }; |
| |
| U_NAMESPACE_END |
| #endif |