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/*
* %W% %W%
*
* (C) Copyright IBM Corp. 1998 - 2013 - All Rights Reserved
*
*/
#include "LETypes.h"
#include "LayoutTables.h"
#include "MorphTables.h"
#include "SubtableProcessor.h"
#include "IndicRearrangementProcessor.h"
#include "ContextualGlyphSubstProc.h"
#include "LigatureSubstProc.h"
#include "NonContextualGlyphSubstProc.h"
//#include "ContextualGlyphInsertionProcessor.h"
#include "LEGlyphStorage.h"
#include "LESwaps.h"
U_NAMESPACE_BEGIN
void MorphTableHeader::process(const LETableReference &base, LEGlyphStorage &glyphStorage, LEErrorCode &success) const
{
le_uint32 chainCount = SWAPL(this->nChains);
LEReferenceTo<ChainHeader> chainHeader(base, success, chains); // moving header
LEReferenceToArrayOf<ChainHeader> chainHeaderArray(base, success, chains, chainCount);
le_uint32 chain;
for (chain = 0; LE_SUCCESS(success) && (chain < chainCount); chain += 1) {
FeatureFlags defaultFlags = SWAPL(chainHeader->defaultFlags);
le_uint32 chainLength = SWAPL(chainHeader->chainLength);
le_int16 nFeatureEntries = SWAPW(chainHeader->nFeatureEntries);
le_int16 nSubtables = SWAPW(chainHeader->nSubtables);
LEReferenceTo<MorphSubtableHeader> subtableHeader =
LEReferenceTo<MorphSubtableHeader>(chainHeader,success, &(chainHeader->featureTable[nFeatureEntries]));
le_int16 subtable;
for (subtable = 0; LE_SUCCESS(success) && (subtable < nSubtables); subtable += 1) {
le_int16 length = SWAPW(subtableHeader->length);
SubtableCoverage coverage = SWAPW(subtableHeader->coverage);
FeatureFlags subtableFeatures = SWAPL(subtableHeader->subtableFeatures);
// should check coverage more carefully...
if ((coverage & scfVertical) == 0 && (subtableFeatures & defaultFlags) != 0 && LE_SUCCESS(success)) {
subtableHeader->process(subtableHeader, glyphStorage, success);
}
subtableHeader.addOffset(length, success);
}
chainHeader.addOffset(chainLength, success);
}
}
void MorphSubtableHeader::process(const LEReferenceTo<MorphSubtableHeader> &base, LEGlyphStorage &glyphStorage, LEErrorCode &success) const
{
SubtableProcessor *processor = NULL;
switch (SWAPW(coverage) & scfTypeMask)
{
case mstIndicRearrangement:
processor = new IndicRearrangementProcessor(base, success);
break;
case mstContextualGlyphSubstitution:
processor = new ContextualGlyphSubstitutionProcessor(base, success);
break;
case mstLigatureSubstitution:
processor = new LigatureSubstitutionProcessor(base, success);
break;
case mstReservedUnused:
break;
case mstNonContextualGlyphSubstitution:
processor = NonContextualGlyphSubstitutionProcessor::createInstance(base, success);
break;
/*
case mstContextualGlyphInsertion:
processor = new ContextualGlyphInsertionProcessor(this);
break;
*/
default:
break;
}
if (processor != NULL) {
if(LE_SUCCESS(success)) {
processor->process(glyphStorage, success);
}
delete processor;
}
}
U_NAMESPACE_END
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