os/textandloc/fontservices/textshaperplugin/IcuSource/layout/ExtensionSubtables.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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/*
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 * %W% %E%
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 *
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 * (C) Copyright IBM Corp. 2002 - All Rights Reserved
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 *
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 */
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#include "LETypes.h"
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#include "OpenTypeTables.h"
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#include "GlyphSubstitutionTables.h"
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#include "LookupProcessor.h"
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#include "ExtensionSubtables.h"
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#include "GlyphIterator.h"
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#include "LESwaps.h"
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U_NAMESPACE_BEGIN
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// FIXME: should look at the format too... maybe have a sub-class for it?
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le_uint32 ExtensionSubtable::process(const LookupProcessor *lookupProcessor, le_uint16 lookupType,
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                                      GlyphIterator *glyphIterator, const LEFontInstance *fontInstance,
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                                      LEErrorCode& success) const
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{
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    if (LE_FAILURE(success)) {
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        return 0;
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    }
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    le_uint16 elt = SWAPW(extensionLookupType);
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    if (elt != lookupType) {
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        le_uint32 extOffset = SWAPL(extensionOffset);
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        LookupSubtable *subtable = (LookupSubtable *) ((char *) this + extOffset);
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        return lookupProcessor->applySubtable(subtable, elt, glyphIterator, fontInstance, success);
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    }
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    return 0;
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}
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U_NAMESPACE_END