1 /*

     2  * %W% %E%

     3  *

     4  * (C) Copyright IBM Corp. 2002 - All Rights Reserved

     5  *

     6  */

     7 

     8 #include "LETypes.h"

     9 #include "OpenTypeTables.h"

    10 #include "GlyphSubstitutionTables.h"

    11 #include "LookupProcessor.h"

    12 #include "ExtensionSubtables.h"

    13 #include "GlyphIterator.h"

    14 #include "LESwaps.h"

    15 

    16 U_NAMESPACE_BEGIN

    17 

    18 

    19 // FIXME: should look at the format too... maybe have a sub-class for it?

    20 le_uint32 ExtensionSubtable::process(const LookupProcessor *lookupProcessor, le_uint16 lookupType,

    21                                       GlyphIterator *glyphIterator, const LEFontInstance *fontInstance,

    22                                       LEErrorCode& success) const

    23 {

    24     if (LE_FAILURE(success)) {

    25         return 0;

    26     }

    27     le_uint16 elt = SWAPW(extensionLookupType);

    28 

    29     if (elt != lookupType) {

    30         le_uint32 extOffset = SWAPL(extensionOffset);

    31         LookupSubtable *subtable = (LookupSubtable *) ((char *) this + extOffset);

    32 

    33         return lookupProcessor->applySubtable(subtable, elt, glyphIterator, fontInstance, success);

    34     }

    35 

    36     return 0;

    37 }

    38 

    39 U_NAMESPACE_END