C++ GXV_TRACE函数代码示例

  static void
  gxv_mort_subtable_type0_entry_validate(
    FT_Byte                         state,
    FT_UShort                       flags,
    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
    FT_Bytes                        table,
    FT_Bytes                        limit,
    GXV_Validator                   valid )
  {
    FT_UShort  markFirst;
    FT_UShort  dontAdvance;
    FT_UShort  markLast;
    FT_UShort  reserved;
    FT_UShort  verb = 0;

    FT_UNUSED( state );
    FT_UNUSED( table );
    FT_UNUSED( limit );

    FT_UNUSED( GXV_Mort_IndicScript_Msg[verb] ); /* for the non-debugging */
    FT_UNUSED( glyphOffset_p );                  /* case                  */


    markFirst   = (FT_UShort)( ( flags >> 15 ) & 1 );
    dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 );
    markLast    = (FT_UShort)( ( flags >> 13 ) & 1 );

    reserved = (FT_UShort)( flags & 0x1FF0 );
    verb     = (FT_UShort)( flags & 0x000F );

    GXV_TRACE(( "  IndicScript MorphRule for glyphOffset 0x%04x",
                glyphOffset_p->u ));
    GXV_TRACE(( " markFirst=%01d", markFirst ));
    GXV_TRACE(( " dontAdvance=%01d", dontAdvance ));
    GXV_TRACE(( " markLast=%01d", markLast ));
    GXV_TRACE(( " %02d", verb ));
    GXV_TRACE(( " %s\n", GXV_Mort_IndicScript_Msg[verb] ));

    if ( markFirst > 0 && markLast > 0 )
    {
      GXV_TRACE(( "  [odd] a glyph is marked as the first and last"
                  "  in Indic rearrangement\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }

    if ( markFirst > 0 && dontAdvance > 0 )
    {
      GXV_TRACE(( "  [odd] the first glyph is marked as dontAdvance"
                  " in Indic rearrangement\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }

    if ( 0 < reserved )
    {
      GXV_TRACE(( " non-zero bits found in reserved range\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }
    else
      GXV_TRACE(( "\n" ));
  }

  static FT_Bool
  gxv_kern_coverage_classic_apple_validate( FT_UShort      coverage,
                                            FT_UShort*     format,
                                            GXV_Validator  valid )
  {
    /* classic Apple-dialect */
    FT_Bool  horizontal;
    FT_Bool  cross_stream;


    /* check expected flags, but don't check if MS-dialect is impossible */
    if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( valid ) )
      return 0;

    /* reserved bits = 0 */
    if ( coverage & 0x02FC )
      return 0;

    horizontal   = FT_BOOL( ( coverage >> 15 ) & 1 );
    cross_stream = FT_BOOL( ( coverage >> 13 ) & 1 );

    *format = (FT_UShort)( coverage & 0x0003 );

    GXV_TRACE(( "classic Apple-dialect: "
                "horizontal=%d, cross-stream=%d, format=%d\n",
                 horizontal, cross_stream, *format ));

    /* format 1 requires GX State Machine, too new for classic */
    if ( *format == 1 )
      return 0;

    GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" ));

    return 1;
  }

  static FT_Bool
  gxv_kern_coverage_new_apple_validate( FT_UShort      coverage,
                                        FT_UShort*     format,
                                        GXV_Validator  gxvalid )
  {
    /* new Apple-dialect */
#ifdef GXV_LOAD_TRACE_VARS
    FT_Bool  kernVertical;
    FT_Bool  kernCrossStream;
    FT_Bool  kernVariation;
#endif

    FT_UNUSED( gxvalid );


    /* reserved bits = 0 */
    if ( coverage & 0x1FFC )
      return FALSE;

#ifdef GXV_LOAD_TRACE_VARS
    kernVertical    = FT_BOOL( ( coverage >> 15 ) & 1 );
    kernCrossStream = FT_BOOL( ( coverage >> 14 ) & 1 );
    kernVariation   = FT_BOOL( ( coverage >> 13 ) & 1 );
#endif

    *format = (FT_UShort)( coverage & 0x0003 );

    GXV_TRACE(( "new Apple-dialect: "
                "horizontal=%d, cross-stream=%d, variation=%d, format=%d\n",
                 !kernVertical, kernCrossStream, kernVariation, *format ));

    GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" ));

    return TRUE;
  }

  static void
  gxv_just_actSubrecord_type4_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  {
    FT_Bytes  p = table;
    FT_ULong  variantsAxis;
    FT_Fixed  minimumLimit;
    FT_Fixed  noStretchValue;
    FT_Fixed  maximumLimit;


    GXV_LIMIT_CHECK( 4 + 4 + 4 + 4 );
    variantsAxis   = FT_NEXT_ULONG( p );
    minimumLimit   = FT_NEXT_ULONG( p );
    noStretchValue = FT_NEXT_ULONG( p );
    maximumLimit   = FT_NEXT_ULONG( p );

    gxvalid->subtable_length = p - table;

    if ( variantsAxis != 0x64756374L ) /* 'duct' */
      GXV_TRACE(( "variantsAxis 0x%08x is non default value",
                   variantsAxis ));

    if ( minimumLimit > noStretchValue )
      GXV_TRACE(( "type4:minimumLimit 0x%08x > noStretchValue 0x%08x\n",
                  minimumLimit, noStretchValue ));
    else if ( noStretchValue > maximumLimit )
      GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n",
                  noStretchValue, maximumLimit ));
    else if ( !IS_PARANOID_VALIDATION )
      return;

    FT_INVALID_DATA;
  }

  static void
  gxv_morx_subtable_type1_entry_validate(
    FT_UShort                       state,
    FT_UShort                       flags,
    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
    FT_Bytes                        table,
    FT_Bytes                        limit,
    GXV_Validator                   valid )
  {
#ifdef GXV_LOAD_TRACE_VARS
    FT_UShort  setMark;
    FT_UShort  dontAdvance;
#endif
    FT_UShort  reserved;
    FT_Short   markIndex;
    FT_Short   currentIndex;

    GXV_morx_subtable_type1_StateOptRecData  optdata =
      (GXV_morx_subtable_type1_StateOptRecData)valid->xstatetable.optdata;

    FT_UNUSED( state );
    FT_UNUSED( table );
    FT_UNUSED( limit );


#ifdef GXV_LOAD_TRACE_VARS
    setMark      = (FT_UShort)( ( flags >> 15 ) & 1 );
    dontAdvance  = (FT_UShort)( ( flags >> 14 ) & 1 );
#endif

    reserved = (FT_UShort)( flags & 0x3FFF );

    markIndex    = (FT_Short)( glyphOffset_p->ul >> 16 );
    currentIndex = (FT_Short)( glyphOffset_p->ul       );

    GXV_TRACE(( " setMark=%01d dontAdvance=%01d\n",
                setMark, dontAdvance ));

    if ( 0 < reserved )
    {
      GXV_TRACE(( " non-zero bits found in reserved range\n" ));
      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
    }

    GXV_TRACE(( "markIndex = %d, currentIndex = %d\n",
                markIndex, currentIndex ));

    if ( optdata->substitutionTable_num_lookupTables < markIndex + 1 )
      optdata->substitutionTable_num_lookupTables =
        (FT_Short)( markIndex + 1 );

    if ( optdata->substitutionTable_num_lookupTables < currentIndex + 1 )
      optdata->substitutionTable_num_lookupTables =
        (FT_Short)( currentIndex + 1 );
  }

  gxv_opbd_validate( FT_Bytes      table,
                     FT_Face       face,
                     FT_Validator  ftvalid )
  {
    GXV_ValidatorRec  gxvalidrec;
    GXV_Validator     gxvalid = &gxvalidrec;
    GXV_opbd_DataRec  opbdrec;
    GXV_opbd_Data     opbd  = &opbdrec;
    FT_Bytes          p     = table;
    FT_Bytes          limit = 0;

    FT_ULong  version;


    gxvalid->root       = ftvalid;
    gxvalid->table_data = opbd;
    gxvalid->face       = face;

    FT_TRACE3(( "validating `opbd' table\n" ));
    GXV_INIT;
    GXV_OPBD_DATA( valueOffset_min ) = 0xFFFFU;


    GXV_LIMIT_CHECK( 4 + 2 );
    version                 = FT_NEXT_ULONG( p );
    GXV_OPBD_DATA( format ) = FT_NEXT_USHORT( p );


    /* only 0x00010000 is defined (1996) */
    GXV_TRACE(( "(version=0x%08x)\n", version ));
    if ( 0x00010000UL != version )
      FT_INVALID_FORMAT;

    /* only values 0 and 1 are defined (1996) */
    GXV_TRACE(( "(format=0x%04x)\n", GXV_OPBD_DATA( format ) ));
    if ( 0x0001 < GXV_OPBD_DATA( format ) )
      FT_INVALID_FORMAT;

    gxvalid->lookupval_sign   = GXV_LOOKUPVALUE_UNSIGNED;
    gxvalid->lookupval_func   = gxv_opbd_LookupValue_validate;
    gxvalid->lookupfmt4_trans = gxv_opbd_LookupFmt4_transit;

    gxv_LookupTable_validate( p, limit, gxvalid );
    p += gxvalid->subtable_length;

    if ( p > table + GXV_OPBD_DATA( valueOffset_min ) )
    {
      GXV_TRACE((
        "found overlap between LookupTable and opbd_value array\n" ));
      FT_INVALID_OFFSET;
    }

    FT_TRACE4(( "\n" ));
  }

  static void
  gxv_mort_subtable_type2_ligActionOffset_validate(
    FT_Bytes       table,
    FT_UShort      ligActionOffset,
    GXV_Validator  valid )
  {
    /* access ligActionTable */
    GXV_mort_subtable_type2_StateOptRecData  optdata =
      (GXV_mort_subtable_type2_StateOptRecData)valid->statetable.optdata;

    FT_Bytes lat_base  = table + optdata->ligActionTable;
    FT_Bytes p         = table + ligActionOffset;
    FT_Bytes lat_limit = lat_base + optdata->ligActionTable;


    GXV_32BIT_ALIGNMENT_VALIDATE( ligActionOffset );
    if ( p < lat_base )
    {
      GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%d byte rewind)\n",
                  ligActionOffset, lat_base - p ));

      /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
      if ( valid->root->level >= FT_VALIDATE_PARANOID )
        FT_INVALID_OFFSET;
    }
    else if ( lat_limit < p )
    {
      GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%d byte overrun)\n",
                  ligActionOffset, p - lat_limit ));

      /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
      if ( valid->root->level >= FT_VALIDATE_PARANOID )
        FT_INVALID_OFFSET;
    }
    else
    {
      /* validate entry in ligActionTable */
      FT_ULong   lig_action;
      FT_UShort  last;
      FT_UShort  store;
      FT_ULong   offset;


      lig_action = FT_NEXT_ULONG( p );
      last   = (FT_UShort)( ( lig_action >> 31 ) & 1 );
      store  = (FT_UShort)( ( lig_action >> 30 ) & 1 );

      offset = lig_action & 0x3FFFFFFFUL;
    }
  }

  static void
  gxv_just_justClassTable_validate ( FT_Bytes       table,
                                     FT_Bytes       limit,
                                     GXV_Validator  valid )
  {
    FT_Bytes   p = table;
    FT_UShort  length;
    FT_UShort  coverage;
    FT_ULong   subFeatureFlags;


    GXV_NAME_ENTER( "just justClassTable" );

    GXV_LIMIT_CHECK( 2 + 2 + 4 );
    length          = FT_NEXT_USHORT( p );
    coverage        = FT_NEXT_USHORT( p );
    subFeatureFlags = FT_NEXT_ULONG( p );

    GXV_TRACE(( "  justClassTable: coverage = 0x%04x (%s)",
                coverage,
                ( 0x4000 & coverage ) == 0 ? "ascending" : "descending" ));

    valid->statetable.optdata               = NULL;
    valid->statetable.optdata_load_func     = NULL;
    valid->statetable.subtable_setup_func   = NULL;
    valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE;
    valid->statetable.entry_validate_func   =
      gxv_just_classTable_entry_validate;

    gxv_StateTable_validate( p, table + length, valid );

    /* subtable_length is set by gxv_LookupTable_validate() */

    GXV_EXIT;
  }

  static void
  gxv_kern_subtable_fmt2_clstbl_validate( FT_Bytes            table,
                                          FT_Bytes            limit,
                                          GXV_kern_ClassSpec  spec,
                                          GXV_Validator       gxvalid )
  {
    const FT_String*  tag    = GXV_KERN_FMT2_DATA( class_tag[spec] );
    GXV_odtect_Range  odtect = GXV_KERN_FMT2_DATA( odtect );

    FT_Bytes   p = table;
    FT_UShort  firstGlyph;
    FT_UShort  nGlyphs;


    GXV_NAME_ENTER( "kern format 2 classTable" );

    GXV_LIMIT_CHECK( 2 + 2 );
    firstGlyph = FT_NEXT_USHORT( p );
    nGlyphs    = FT_NEXT_USHORT( p );
    GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n",
                tag, firstGlyph, nGlyphs ));

    gxv_glyphid_validate( firstGlyph, gxvalid );
    gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs - 1 ), gxvalid );

    gxv_array_getlimits_ushort( p, p + ( 2 * nGlyphs ),
                                &( GXV_KERN_FMT2_DATA( offset_min[spec] ) ),
                                &( GXV_KERN_FMT2_DATA( offset_max[spec] ) ),
                                gxvalid );

    gxv_odtect_add_range( table, 2 * nGlyphs, tag, odtect );

    GXV_EXIT;
  }

  static void
  gxv_morx_subtable_type0_entry_validate(
    FT_UShort                        state,
    FT_UShort                        flags,
    GXV_XStateTable_GlyphOffsetDesc  glyphOffset,
    FT_Bytes                         table,
    FT_Bytes                         limit,
    GXV_Validator                    valid )
  {
    FT_UShort  markFirst;
    FT_UShort  dontAdvance;
    FT_UShort  markLast;
    FT_UShort  reserved;
    FT_UShort  verb;

    FT_UNUSED( state );
    FT_UNUSED( glyphOffset );
    FT_UNUSED( table );
    FT_UNUSED( limit );


    markFirst   = (FT_UShort)( ( flags >> 15 ) & 1 );
    dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 );
    markLast    = (FT_UShort)( ( flags >> 13 ) & 1 );

    reserved = (FT_UShort)( flags & 0x1FF0 );
    verb     = (FT_UShort)( flags & 0x000F );

    if ( 0 < reserved )
    {
      GXV_TRACE(( " non-zero bits found in reserved range\n" ));
      FT_INVALID_DATA;
    }
  }

static void
gxv_mort_subtable_type1_substTable_validate( FT_Bytes       table,
        FT_Bytes       limit,
        GXV_Validator  valid )
{
    FT_Bytes   p = table;
    FT_UShort  num_gids = (FT_UShort)(
                              ((GXV_mort_subtable_type1_StateOptRec *)
                               (valid->statetable.optdata))->substitutionTable_length / 2 );
    FT_UShort  i;


    GXV_NAME_ENTER( "validating contents of substitutionTable" );
    for ( i = 0; i < num_gids ; i ++ )
    {
        FT_UShort  dst_gid;


        GXV_LIMIT_CHECK( 2 );
        dst_gid = FT_NEXT_USHORT( p );

        if ( dst_gid >= 0xFFFFU )
            continue;

        if ( dst_gid < valid->min_gid || valid->max_gid < dst_gid )
        {
            GXV_TRACE(( "substTable include a strange gid[%d]=%d >"
                        " out of define range (%d..%d)\n",
                        i, dst_gid, valid->min_gid, valid->max_gid ));
            GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
        }
    }

    GXV_EXIT;
}

  gxv_bsln_validate( FT_Bytes      table,
                     FT_Face       face,
                     FT_Validator  ftvalid )
  {
    GXV_ValidatorRec  validrec;
    GXV_Validator     valid = &validrec;

    GXV_bsln_DataRec  bslnrec;
    GXV_bsln_Data     bsln = &bslnrec;

    FT_Bytes  p     = table;
    FT_Bytes  limit = 0;

    FT_ULong   version;
    FT_UShort  format;
    FT_UShort  defaultBaseline;

    GXV_Validate_Func  fmt_funcs_table [] =
    {
      gxv_bsln_parts_fmt0_validate,
      gxv_bsln_parts_fmt1_validate,
      gxv_bsln_parts_fmt2_validate,
      gxv_bsln_parts_fmt3_validate,
    };


    valid->root       = ftvalid;
    valid->table_data = bsln;
    valid->face       = face;

    FT_TRACE3(( "validating `bsln' table\n" ));
    GXV_INIT;


    GXV_LIMIT_CHECK( 4 + 2 + 2 );
    version         = FT_NEXT_ULONG( p );
    format          = FT_NEXT_USHORT( p );
    defaultBaseline = FT_NEXT_USHORT( p );

    /* only version 1.0 is defined (1996) */
    if ( version != 0x00010000UL )
      FT_INVALID_FORMAT;

    /* only format 1, 2, 3 are defined (1996) */
    GXV_TRACE(( " (format = %d)\n", format ));
    if ( format > 3 )
      FT_INVALID_FORMAT;

    if ( defaultBaseline > 31 )
      FT_INVALID_FORMAT;

    bsln->defaultBaseline = defaultBaseline;

    fmt_funcs_table[format]( p, limit, valid );

    FT_TRACE4(( "\n" ));
  }

  static void
  gxv_kern_subtable_fmt0_pairs_validate( FT_Bytes       table,
                                         FT_Bytes       limit,
                                         FT_UShort      nPairs,
                                         GXV_Validator  valid )
  {
    FT_Bytes   p = table;
    FT_UShort  i;

    FT_UShort  last_gid_left  = 0;
    FT_UShort  last_gid_right = 0;

    FT_UNUSED( limit );


    GXV_NAME_ENTER( "kern format 0 pairs" );

    for ( i = 0; i < nPairs; i++ )
    {
      FT_UShort  gid_left;
      FT_UShort  gid_right;
      FT_Short   kernValue;


      /* left */
      gid_left  = FT_NEXT_USHORT( p );
      gxv_glyphid_validate( gid_left, valid );

      /* right */
      gid_right = FT_NEXT_USHORT( p );
      gxv_glyphid_validate( gid_right, valid );

      /* Pairs of left and right GIDs must be unique and sorted. */
      GXV_TRACE(( "left gid = %u, right gid = %u\n", gid_left, gid_right ));
      if ( gid_left == last_gid_left )
      {
        if ( last_gid_right < gid_right )
          last_gid_right = gid_right;
        else
          FT_INVALID_DATA;
      }
      else if ( last_gid_left < gid_left )
      {
        last_gid_left  = gid_left;
        last_gid_right = gid_right;
      }
      else
        FT_INVALID_DATA;

      /* skip the kern value */
      kernValue = FT_NEXT_SHORT( p );
    }

    GXV_EXIT;
  }

  static void
  gxv_kern_subtable_fmt2_validate( FT_Bytes       table,
                                   FT_Bytes       limit,
                                   GXV_Validator  gxvalid )
  {
    GXV_ODTECT( 3, odtect );
    GXV_kern_subtable_fmt2_DataRec  fmt2_rec =
      { 0, 0, { 0, 0 }, { 0, 0 }, { "leftClass", "rightClass" }, NULL };

    FT_Bytes   p = table + GXV_KERN_SUBTABLE_HEADER_SIZE;
    FT_UShort  leftOffsetTable;
    FT_UShort  rightOffsetTable;


    GXV_NAME_ENTER( "kern subtable format 2" );

    GXV_ODTECT_INIT( odtect );
    fmt2_rec.odtect = odtect;
    GXV_KERN_DATA( subtable_data ) = &fmt2_rec;

    GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 );
    GXV_KERN_FMT2_DATA( rowWidth ) = FT_NEXT_USHORT( p );
    leftOffsetTable                = FT_NEXT_USHORT( p );
    rightOffsetTable               = FT_NEXT_USHORT( p );
    GXV_KERN_FMT2_DATA( array )    = FT_NEXT_USHORT( p );

    GXV_TRACE(( "rowWidth = %d\n", GXV_KERN_FMT2_DATA( rowWidth ) ));


    GXV_LIMIT_CHECK( leftOffsetTable );
    GXV_LIMIT_CHECK( rightOffsetTable );
    GXV_LIMIT_CHECK( GXV_KERN_FMT2_DATA( array ) );

    gxv_kern_subtable_fmt2_clstbl_validate( table + leftOffsetTable, limit,
                                            GXV_KERN_CLS_L, gxvalid );

    gxv_kern_subtable_fmt2_clstbl_validate( table + rightOffsetTable, limit,
                                            GXV_KERN_CLS_R, gxvalid );

    if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) +
           GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] )
         < GXV_KERN_FMT2_DATA( array )                      )
      FT_INVALID_OFFSET;

    gxv_odtect_add_range( table + GXV_KERN_FMT2_DATA( array ),
                          GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_L] )
                            + GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_R] )
                            - GXV_KERN_FMT2_DATA( array ),
                          "array", odtect );

    gxv_odtect_validate( odtect, gxvalid );

    GXV_EXIT;
  }

  static void
  gxv_trak_trackData_validate( FT_Bytes       table,
                               FT_Bytes       limit,
                               GXV_Validator  gxvalid )
  {
    FT_Bytes   p = table;
    FT_UShort  nTracks;
    FT_UShort  nSizes;
    FT_ULong   sizeTableOffset;

    GXV_ODTECT( 4, odtect );


    GXV_ODTECT_INIT( odtect );
    GXV_NAME_ENTER( "trackData" );

    /* read the header of trackData */
    GXV_LIMIT_CHECK( 2 + 2 + 4 );
    nTracks         = FT_NEXT_USHORT( p );
    nSizes          = FT_NEXT_USHORT( p );
    sizeTableOffset = FT_NEXT_ULONG( p );

    gxv_odtect_add_range( table, (FT_ULong)( p - table ),
                          "trackData header", odtect );

    /* validate trackTable */
    gxv_trak_trackTable_validate( p, limit, nTracks, gxvalid );
    gxv_odtect_add_range( p, gxvalid->subtable_length,
                          "trackTable", odtect );

    /* sizeTable is array of FT_Fixed, don't check contents */
    p = gxvalid->root->base + sizeTableOffset;
    GXV_LIMIT_CHECK( nSizes * 4 );
    gxv_odtect_add_range( p, nSizes * 4, "sizeTable", odtect );

    /* validate trackValueOffet */
    p = gxvalid->root->base + GXV_TRAK_DATA( trackValueOffset_min );
    if ( limit - p < nTracks * nSizes * 2 )
      GXV_TRACE(( "too short trackValue array\n" ));

    p = gxvalid->root->base + GXV_TRAK_DATA( trackValueOffset_max );
    GXV_LIMIT_CHECK( nSizes * 2 );

    gxv_odtect_add_range( gxvalid->root->base
                            + GXV_TRAK_DATA( trackValueOffset_min ),
                          GXV_TRAK_DATA( trackValueOffset_max )
                            - GXV_TRAK_DATA( trackValueOffset_min )
                            + nSizes * 2,
                          "trackValue array", odtect );

    gxv_odtect_validate( odtect, gxvalid );

    GXV_EXIT;
  }