source/layout/SegmentSingleProcessor2.cpp

   1 /*
   2  *
   3  * (C) Copyright IBM Corp.  and others 1998-2015 - All Rights Reserved
   4  *
   5  */
   6
   7 #include "LETypes.h"
   8 #include "MorphTables.h"
   9 #include "SubtableProcessor2.h"
  10 #include "NonContextualGlyphSubst.h"
  11 #include "NonContextualGlyphSubstProc2.h"
  12 #include "SegmentSingleProcessor2.h"
  13 #include "LEGlyphStorage.h"
  14 #include "LESwaps.h"
  15
  16 U_NAMESPACE_BEGIN
  17
  18 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(SegmentSingleProcessor2)
  19
  20 SegmentSingleProcessor2::SegmentSingleProcessor2()
  21 {
  22 }
  23
  24 SegmentSingleProcessor2::SegmentSingleProcessor2(const LEReferenceTo<MorphSubtableHeader2> &morphSubtableHeader, LEErrorCode &success)
  25   : NonContextualGlyphSubstitutionProcessor2(morphSubtableHeader, success)
  26 {
  27   const LEReferenceTo<NonContextualGlyphSubstitutionHeader2> header(morphSubtableHeader, success);
  28
  29   segmentSingleLookupTable = LEReferenceTo<SegmentSingleLookupTable>(morphSubtableHeader, success, &header->table);
  30 }
  31
  32 SegmentSingleProcessor2::~SegmentSingleProcessor2()
  33 {
  34 }
  35
  36 void SegmentSingleProcessor2::process(LEGlyphStorage &glyphStorage, LEErrorCode &success)
  37 {
  38     const LookupSegment *segments = segmentSingleLookupTable->segments;
  39     le_int32 glyphCount = glyphStorage.getGlyphCount();
  40     le_int32 glyph;
  41
  42     if (LE_FAILURE(success)) return;
  43
  44     for (glyph = 0; glyph < glyphCount; glyph += 1) {
  45         LEGlyphID thisGlyph = glyphStorage[glyph];
  46         const LookupSegment *lookupSegment = segmentSingleLookupTable->lookupSegment(segmentSingleLookupTable, segments, thisGlyph, success);
  47
  48         if (lookupSegment != NULL && LE_SUCCESS(success)) {
  49             TTGlyphID   newGlyph  = (TTGlyphID) LE_GET_GLYPH(thisGlyph) + SWAPW(lookupSegment->value);
  50
  51             glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph);
  52         }
  53     }
  54 }
  55
  56 U_NAMESPACE_END