os/textandloc/fontservices/textshaperplugin/IcuSource/layout/SegmentArrayProcessor.cpp
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/textandloc/fontservices/textshaperplugin/IcuSource/layout/SegmentArrayProcessor.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,60 @@
1.4 +/*
1.5 + *
1.6 + * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
1.7 + *
1.8 + */
1.9 +
1.10 +#include "LETypes.h"
1.11 +#include "MorphTables.h"
1.12 +#include "SubtableProcessor.h"
1.13 +#include "NonContextualGlyphSubst.h"
1.14 +#include "NonContextualGlyphSubstProc.h"
1.15 +#include "SegmentArrayProcessor.h"
1.16 +#include "LEGlyphStorage.h"
1.17 +#include "LESwaps.h"
1.18 +
1.19 +U_NAMESPACE_BEGIN
1.20 +
1.21 +UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SegmentArrayProcessor)
1.22 +
1.23 +SegmentArrayProcessor::SegmentArrayProcessor()
1.24 +{
1.25 +}
1.26 +
1.27 +SegmentArrayProcessor::SegmentArrayProcessor(const MorphSubtableHeader *morphSubtableHeader)
1.28 + : NonContextualGlyphSubstitutionProcessor(morphSubtableHeader)
1.29 +{
1.30 + const NonContextualGlyphSubstitutionHeader *header = (const NonContextualGlyphSubstitutionHeader *) morphSubtableHeader;
1.31 +
1.32 + segmentArrayLookupTable = (const SegmentArrayLookupTable *) &header->table;
1.33 +}
1.34 +
1.35 +SegmentArrayProcessor::~SegmentArrayProcessor()
1.36 +{
1.37 +}
1.38 +
1.39 +void SegmentArrayProcessor::process(LEGlyphStorage &glyphStorage)
1.40 +{
1.41 + const LookupSegment *segments = segmentArrayLookupTable->segments;
1.42 + le_int32 glyphCount = glyphStorage.getGlyphCount();
1.43 + le_int32 glyph;
1.44 +
1.45 + for (glyph = 0; glyph < glyphCount; glyph += 1) {
1.46 + LEGlyphID thisGlyph = glyphStorage[glyph];
1.47 + const LookupSegment *lookupSegment = segmentArrayLookupTable->lookupSegment(segments, thisGlyph);
1.48 +
1.49 + if (lookupSegment != NULL) {
1.50 + TTGlyphID firstGlyph = SWAPW(lookupSegment->firstGlyph);
1.51 + le_int16 offset = SWAPW(lookupSegment->value);
1.52 +
1.53 + if (offset != 0) {
1.54 + TTGlyphID *glyphArray = (TTGlyphID *) ((char *) subtableHeader + offset);
1.55 + TTGlyphID newGlyph = SWAPW(glyphArray[LE_GET_GLYPH(thisGlyph) - firstGlyph]);
1.56 +
1.57 + glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph);
1.58 + }
1.59 + }
1.60 + }
1.61 +}
1.62 +
1.63 +U_NAMESPACE_END