icuSources/layout/MarkArrays.cpp

   1 /*
   2  *
   3  * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved
   4  *
   5  */
   6
   7 #include "LETypes.h"
   8 #include "LEFontInstance.h"
   9 #include "OpenTypeTables.h"
  10 #include "AnchorTables.h"
  11 #include "MarkArrays.h"
  12 #include "LESwaps.h"
  13
  14 U_NAMESPACE_BEGIN
  15
  16 le_int32 MarkArray::getMarkClass(LEGlyphID glyphID, le_int32 coverageIndex, const LEFontInstance *fontInstance,
  17                               LEPoint &anchor) const
  18 {
  19     le_int32 markClass = -1;
  20
  21     if (coverageIndex >= 0) {
  22         le_uint16 mCount = SWAPW(markCount);
  23
  24         if (coverageIndex < mCount) {
  25             const MarkRecord *markRecord = &markRecordArray[coverageIndex];
  26             Offset anchorTableOffset = SWAPW(markRecord->markAnchorTableOffset);
  27             const AnchorTable *anchorTable = (AnchorTable *) ((char *) this + anchorTableOffset);
  28
  29             anchorTable->getAnchor(glyphID, fontInstance, anchor);
  30             markClass = SWAPW(markRecord->markClass);
  31         }
  32
  33         // XXXX If we get here, the table is mal-formed
  34     }
  35
  36     return markClass;
  37 }
  38
  39 U_NAMESPACE_END