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-rw-r--r--Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp51
1 files changed, 51 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp b/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp
new file mode 100644
index 00000000000..1fb281300ed
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+++ b/Build/source/libs/icu/icu-4.8.1/layout/SubstitutionLookups.cpp
@@ -0,0 +1,51 @@
+/*
+ *
+ * (C) Copyright IBM Corp. 1998-2008 - All Rights Reserved
+ *
+ */
+
+#include "LETypes.h"
+#include "LEFontInstance.h"
+#include "OpenTypeTables.h"
+#include "GlyphSubstitutionTables.h"
+#include "GlyphIterator.h"
+#include "LookupProcessor.h"
+#include "SubstitutionLookups.h"
+#include "CoverageTables.h"
+#include "LESwaps.h"
+
+U_NAMESPACE_BEGIN
+
+/*
+ NOTE: This could be optimized somewhat by keeping track
+ of the previous sequenceIndex in the loop and doing next()
+ or prev() of the delta between that and the current
+ sequenceIndex instead of always resetting to the front.
+*/
+void SubstitutionLookup::applySubstitutionLookups(
+ LookupProcessor *lookupProcessor,
+ SubstitutionLookupRecord *substLookupRecordArray,
+ le_uint16 substCount,
+ GlyphIterator *glyphIterator,
+ const LEFontInstance *fontInstance,
+ le_int32 position,
+ LEErrorCode& success)
+{
+ if (LE_FAILURE(success)) {
+ return;
+ }
+
+ GlyphIterator tempIterator(*glyphIterator);
+
+ for (le_uint16 subst = 0; subst < substCount && LE_SUCCESS(success); subst += 1) {
+ le_uint16 sequenceIndex = SWAPW(substLookupRecordArray[subst].sequenceIndex);
+ le_uint16 lookupListIndex = SWAPW(substLookupRecordArray[subst].lookupListIndex);
+
+ tempIterator.setCurrStreamPosition(position);
+ tempIterator.next(sequenceIndex);
+
+ lookupProcessor->applySingleLookup(lookupListIndex, &tempIterator, fontInstance, success);
+ }
+}
+
+U_NAMESPACE_END