TrimmedArrayProcessor.cpp revision c73f511526464f8e56c242df80552e9b0d94ae3d 
1/*
2 *
3 * (C) Copyright IBM Corp. 1998-2013 - All Rights Reserved
4 *
5 */
6
7#include "LETypes.h"
8#include "MorphTables.h"
9#include "SubtableProcessor.h"
10#include "NonContextualGlyphSubst.h"
11#include "NonContextualGlyphSubstProc.h"
12#include "TrimmedArrayProcessor.h"
13#include "LEGlyphStorage.h"
14#include "LESwaps.h"
15
16U_NAMESPACE_BEGIN
17
18UOBJECT_DEFINE_RTTI_IMPLEMENTATION(TrimmedArrayProcessor)
19
20TrimmedArrayProcessor::TrimmedArrayProcessor()
21{
22}
23
24TrimmedArrayProcessor::TrimmedArrayProcessor(const LEReferenceTo<MorphSubtableHeader> &morphSubtableHeader, LEErrorCode &success)
25  : NonContextualGlyphSubstitutionProcessor(morphSubtableHeader, success), firstGlyph(0), lastGlyph(0)
26{
27  LEReferenceTo<NonContextualGlyphSubstitutionHeader> header(morphSubtableHeader, success);
28
29  if(LE_FAILURE(success)) return;
30
31  trimmedArrayLookupTable = LEReferenceTo<TrimmedArrayLookupTable>(morphSubtableHeader, success, (const TrimmedArrayLookupTable*)&header->table);
32
33  if(LE_FAILURE(success)) return;
34
35  firstGlyph = SWAPW(trimmedArrayLookupTable->firstGlyph);
36  lastGlyph = firstGlyph + SWAPW(trimmedArrayLookupTable->glyphCount);
37}
38
39TrimmedArrayProcessor::~TrimmedArrayProcessor()
40{
41}
42
43void TrimmedArrayProcessor::process(LEGlyphStorage &glyphStorage, LEErrorCode &success)
44{
45  if(LE_FAILURE(success)) return;
46    le_int32 glyphCount = glyphStorage.getGlyphCount();
47    le_int32 glyph;
48
49    for (glyph = 0; glyph < glyphCount; glyph += 1) {
50        LEGlyphID thisGlyph = glyphStorage[glyph];
51        TTGlyphID ttGlyph = (TTGlyphID) LE_GET_GLYPH(thisGlyph);
52
53        if ((ttGlyph > firstGlyph) && (ttGlyph < lastGlyph)) {
54            TTGlyphID newGlyph = SWAPW(trimmedArrayLookupTable->valueArray[ttGlyph - firstGlyph]);
55
56            glyphStorage[glyph] = LE_SET_GLYPH(thisGlyph, newGlyph);
57        }
58    }
59}
60
61U_NAMESPACE_END
62