projects / apple / icu.git / blame
| Commit | Line | Data |
|---|---|---|
| b75a7d8f | 1 | /* |
| b75a7d8f | 2 | * |
| 729e4ab9 | 3 | * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved |
| b75a7d8f A |
4 | * |
| 5 | */ | |
| 6 | ||
| 7 | #include "LETypes.h" | |
| 8 | #include "LEFontInstance.h" | |
| 9 | #include "OpenTypeTables.h" | |
| 10 | #include "GlyphSubstitutionTables.h" | |
| 11 | #include "GlyphIterator.h" | |
| 12 | #include "LookupProcessor.h" | |
| 13 | #include "SubstitutionLookups.h" | |
| 14 | #include "CoverageTables.h" | |
| 15 | #include "LESwaps.h" | |
| 16 | ||
| 17 | U_NAMESPACE_BEGIN | |
| 18 | ||
| 19 | /* | |
| 20 | NOTE: This could be optimized somewhat by keeping track | |
| 21 | of the previous sequenceIndex in the loop and doing next() | |
| 22 | or prev() of the delta between that and the current | |
| 23 | sequenceIndex instead of always resetting to the front. | |
| 24 | */ | |
| 25 | void SubstitutionLookup::applySubstitutionLookups( | |
| 26 | LookupProcessor *lookupProcessor, | |
| 27 | SubstitutionLookupRecord *substLookupRecordArray, | |
| 28 | le_uint16 substCount, | |
| 29 | GlyphIterator *glyphIterator, | |
| 30 | const LEFontInstance *fontInstance, | |
| 729e4ab9 A |
31 | le_int32 position, |
| 32 | LEErrorCode& success) | |
| b75a7d8f | 33 | { |
| 729e4ab9 A |
34 | if (LE_FAILURE(success)) { |
| 35 | return; | |
| 36 | } | |
| 37 | ||
| b75a7d8f A |
38 | GlyphIterator tempIterator(*glyphIterator); |
| 39 | ||
| 729e4ab9 | 40 | for (le_uint16 subst = 0; subst < substCount && LE_SUCCESS(success); subst += 1) { |
| b75a7d8f A |
41 | le_uint16 sequenceIndex = SWAPW(substLookupRecordArray[subst].sequenceIndex); |
| 42 | le_uint16 lookupListIndex = SWAPW(substLookupRecordArray[subst].lookupListIndex); | |
| 43 | ||
| 44 | tempIterator.setCurrStreamPosition(position); | |
| 45 | tempIterator.next(sequenceIndex); | |
| 46 | ||
| 729e4ab9 | 47 | lookupProcessor->applySingleLookup(lookupListIndex, &tempIterator, fontInstance, success); |
| b75a7d8f A |
48 | } |
| 49 | } | |
| 50 | ||
| 51 | U_NAMESPACE_END |