static void
otv_MinMax_validate( FT_Bytes table,
OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt table_size;
FT_UInt FeatMinMaxCount;
OTV_OPTIONAL_TABLE( MinCoord );
OTV_OPTIONAL_TABLE( MaxCoord );
OTV_NAME_ENTER( "MinMax" );
OTV_LIMIT_CHECK( 6 );
OTV_OPTIONAL_OFFSET( MinCoord );
OTV_OPTIONAL_OFFSET( MaxCoord );
FeatMinMaxCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (FeatMinMaxCount = %d)\n", FeatMinMaxCount ));
table_size = FeatMinMaxCount * 8 + 6;
OTV_SIZE_CHECK( MinCoord );
if ( MinCoord )
otv_BaseCoord_validate( table + MinCoord, otvalid );
OTV_SIZE_CHECK( MaxCoord );
if ( MaxCoord )
otv_BaseCoord_validate( table + MaxCoord, otvalid );
OTV_LIMIT_CHECK( FeatMinMaxCount * 8 );
/* FeatMinMaxRecord */
for ( ; FeatMinMaxCount > 0; FeatMinMaxCount-- )
{
p += 4; /* skip FeatureTableTag */
OTV_OPTIONAL_OFFSET( MinCoord );
OTV_OPTIONAL_OFFSET( MaxCoord );
OTV_SIZE_CHECK( MinCoord );
if ( MinCoord )
otv_BaseCoord_validate( table + MinCoord, otvalid );
OTV_SIZE_CHECK( MaxCoord );
if ( MaxCoord )
otv_BaseCoord_validate( table + MaxCoord, otvalid );
}
OTV_EXIT;
}
static void
otv_JstfScript_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt table_size;
FT_UInt JstfLangSysCount;
OTV_OPTIONAL_TABLE( ExtGlyph );
OTV_OPTIONAL_TABLE( DefJstfLangSys );
OTV_NAME_ENTER( "JstfScript" );
OTV_LIMIT_CHECK( 6 );
OTV_OPTIONAL_OFFSET( ExtGlyph );
OTV_OPTIONAL_OFFSET( DefJstfLangSys );
JstfLangSysCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (JstfLangSysCount = %d)\n", JstfLangSysCount ));
table_size = JstfLangSysCount * 6 + 6;
OTV_SIZE_CHECK( ExtGlyph );
if ( ExtGlyph )
{
valid->extra1 = valid->glyph_count;
OTV_NEST1( ExtenderGlyph );
OTV_RUN( table + ExtGlyph, valid );
}
OTV_SIZE_CHECK( DefJstfLangSys );
if ( DefJstfLangSys )
{
OTV_NEST2( JstfLangSys, JstfPriority );
OTV_RUN( table + DefJstfLangSys, valid );
}
OTV_LIMIT_CHECK( 6 * JstfLangSysCount );
/* JstfLangSysRecord */
OTV_NEST2( JstfLangSys, JstfPriority );
for ( ; JstfLangSysCount > 0; JstfLangSysCount-- )
{
p += 4; /* skip JstfLangSysTag */
OTV_RUN( table + FT_NEXT_USHORT( p ), valid );
}
OTV_EXIT;
}
static void
otv_MathVariants_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt vcnt, hcnt, i, table_size;
OTV_OPTIONAL_TABLE( VCoverage );
OTV_OPTIONAL_TABLE( HCoverage );
OTV_OPTIONAL_TABLE( Offset );
OTV_NAME_ENTER( "MathVariants" );
OTV_LIMIT_CHECK( 10 );
p += 2; /* Skip the MinConnectorOverlap constant */
OTV_OPTIONAL_OFFSET( VCoverage );
OTV_OPTIONAL_OFFSET( HCoverage );
vcnt = FT_NEXT_USHORT( p );
hcnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 2 * vcnt + 2 * hcnt );
table_size = 10 + 2 * vcnt + 2 * hcnt;
OTV_SIZE_CHECK( VCoverage );
if ( VCoverage )
otv_Coverage_validate( table + VCoverage, valid, vcnt );
OTV_SIZE_CHECK( HCoverage );
if ( HCoverage )
otv_Coverage_validate( table + HCoverage, valid, hcnt );
for ( i = 0; i < vcnt; ++i )
{
OTV_OPTIONAL_OFFSET( Offset );
OTV_SIZE_CHECK( Offset );
otv_MathGlyphConstruction_validate( table + Offset, valid );
}
for ( i = 0; i < hcnt; ++i )
{
OTV_OPTIONAL_OFFSET( Offset );
OTV_SIZE_CHECK( Offset );
otv_MathGlyphConstruction_validate( table + Offset, valid );
}
OTV_EXIT;
}
static void
otv_MathConstants_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt i;
FT_UInt table_size;
OTV_OPTIONAL_TABLE( DeviceTableOffset );
OTV_NAME_ENTER( "MathConstants" );
/* 56 constants, 51 have device tables */
OTV_LIMIT_CHECK( 2 * ( 56 + 51 ) );
table_size = 2 * ( 56 + 51 );
p += 4 * 2; /* First 4 constants have no device tables */
for ( i = 0; i < 51; ++i )
{
p += 2; /* skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
otv_Device_validate( table + DeviceTableOffset, valid );
}
OTV_EXIT;
}
static void
otv_Axis_validate( FT_Bytes table,
OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt table_size;
OTV_OPTIONAL_TABLE( BaseTagList );
OTV_NAME_ENTER( "Axis" );
OTV_LIMIT_CHECK( 4 );
OTV_OPTIONAL_OFFSET( BaseTagList );
table_size = 4;
OTV_SIZE_CHECK( BaseTagList );
if ( BaseTagList )
otv_BaseTagList_validate( table + BaseTagList, otvalid );
/* BaseScriptList */
otv_BaseScriptList_validate( table + FT_NEXT_USHORT( p ), otvalid );
OTV_EXIT;
}
static void
otv_BaseScript_validate( FT_Bytes table,
OTV_Validator otvalid )
{
FT_Bytes p = table;
FT_UInt table_size;
FT_UInt BaseLangSysCount;
OTV_OPTIONAL_TABLE( BaseValues );
OTV_OPTIONAL_TABLE( DefaultMinMax );
OTV_NAME_ENTER( "BaseScript" );
OTV_LIMIT_CHECK( 6 );
OTV_OPTIONAL_OFFSET( BaseValues );
OTV_OPTIONAL_OFFSET( DefaultMinMax );
BaseLangSysCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (BaseLangSysCount = %d)\n", BaseLangSysCount ));
table_size = BaseLangSysCount * 6 + 6;
OTV_SIZE_CHECK( BaseValues );
if ( BaseValues )
otv_BaseValues_validate( table + BaseValues, otvalid );
OTV_SIZE_CHECK( DefaultMinMax );
if ( DefaultMinMax )
otv_MinMax_validate( table + DefaultMinMax, otvalid );
OTV_LIMIT_CHECK( BaseLangSysCount * 6 );
/* BaseLangSysRecord */
for ( ; BaseLangSysCount > 0; BaseLangSysCount-- )
{
p += 4; /* skip BaseLangSysTag */
otv_MinMax_validate( table + FT_NEXT_USHORT( p ), otvalid );
}
OTV_EXIT;
}
static void
otv_MathItalicsCorrectionInfo_validate( FT_Bytes table,
OTV_Validator otvalid,
FT_Int isItalic )
{
FT_Bytes p = table;
FT_UInt i, cnt, table_size;
OTV_OPTIONAL_TABLE( Coverage );
OTV_OPTIONAL_TABLE( DeviceTableOffset );
FT_UNUSED( isItalic ); /* only used if tracing is active */
OTV_NAME_ENTER( isItalic ? "MathItalicsCorrectionInfo"
: "MathTopAccentAttachment" );
OTV_LIMIT_CHECK( 4 );
OTV_OPTIONAL_OFFSET( Coverage );
cnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 4 * cnt );
table_size = 4 + 4 * cnt;
OTV_SIZE_CHECK( Coverage );
otv_Coverage_validate( table + Coverage, otvalid, (FT_Int)cnt );
for ( i = 0; i < cnt; ++i )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
otv_Device_validate( table + DeviceTableOffset, otvalid );
}
OTV_EXIT;
}
static void
otv_MathKernInfo_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt i, j, cnt, table_size;
OTV_OPTIONAL_TABLE( Coverage );
OTV_OPTIONAL_TABLE( MKRecordOffset );
OTV_NAME_ENTER( "MathKernInfo" );
OTV_LIMIT_CHECK( 4 );
OTV_OPTIONAL_OFFSET( Coverage );
cnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 8 * cnt );
table_size = 4 + 8 * cnt;
OTV_SIZE_CHECK( Coverage );
otv_Coverage_validate( table + Coverage, valid, cnt );
for ( i = 0; i < cnt; ++i )
{
for ( j = 0; j < 4; ++j )
{
OTV_OPTIONAL_OFFSET( MKRecordOffset );
OTV_SIZE_CHECK( MKRecordOffset );
if ( MKRecordOffset )
otv_MathKern_validate( table + MKRecordOffset, valid );
}
}
OTV_EXIT;
}
otv_BASE_validate( FT_Bytes table,
FT_Validator ftvalid )
{
OTV_ValidatorRec otvalidrec;
OTV_Validator otvalid = &otvalidrec;
FT_Bytes p = table;
FT_UInt table_size;
OTV_OPTIONAL_TABLE( HorizAxis );
OTV_OPTIONAL_TABLE( VertAxis );
otvalid->root = ftvalid;
FT_TRACE3(( "validating BASE table\n" ));
OTV_INIT;
OTV_LIMIT_CHECK( 6 );
if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */
FT_INVALID_FORMAT;
table_size = 6;
OTV_OPTIONAL_OFFSET( HorizAxis );
OTV_SIZE_CHECK( HorizAxis );
if ( HorizAxis )
otv_Axis_validate( table + HorizAxis, otvalid );
OTV_OPTIONAL_OFFSET( VertAxis );
OTV_SIZE_CHECK( VertAxis );
if ( VertAxis )
otv_Axis_validate( table + VertAxis, otvalid );
FT_TRACE4(( "\n" ));
}
static void
otv_MathKern_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt i, cnt, table_size;
OTV_OPTIONAL_TABLE( DeviceTableOffset );
/* OTV_NAME_ENTER( "MathKern" );*/
OTV_LIMIT_CHECK( 2 );
cnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 4 * cnt + 2 );
table_size = 4 + 4 * cnt;
/* Heights */
for ( i = 0; i < cnt; ++i )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
otv_Device_validate( table + DeviceTableOffset, valid );
}
/* One more Kerning value */
for ( i = 0; i < cnt + 1; ++i )
{
p += 2; /* Skip the value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
otv_Device_validate( table + DeviceTableOffset, valid );
}
OTV_EXIT;
}
static void
otv_GlyphAssembly_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt pcnt, table_size;
FT_UInt i;
OTV_OPTIONAL_TABLE( DeviceTableOffset );
/* OTV_NAME_ENTER( "GlyphAssembly" ); */
OTV_LIMIT_CHECK( 6 );
p += 2; /* Skip the Italics Correction value */
OTV_OPTIONAL_OFFSET( DeviceTableOffset );
pcnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 8 * pcnt );
table_size = 6 + 8 * pcnt;
OTV_SIZE_CHECK( DeviceTableOffset );
if ( DeviceTableOffset )
otv_Device_validate( table + DeviceTableOffset, valid );
for ( i = 0; i < pcnt; ++i )
{
FT_UInt gid;
gid = FT_NEXT_USHORT( p );
if ( gid >= valid->glyph_count )
FT_INVALID_GLYPH_ID;
p += 2*4; /* skip the Start, End, Full, and Flags fields */
}
/* OTV_EXIT; */
}
static void
otv_MathGlyphConstruction_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt vcnt, table_size;
FT_UInt i;
OTV_OPTIONAL_TABLE( GlyphAssembly );
/* OTV_NAME_ENTER( "MathGlyphConstruction" ); */
OTV_LIMIT_CHECK( 4 );
OTV_OPTIONAL_OFFSET( GlyphAssembly );
vcnt = FT_NEXT_USHORT( p );
OTV_LIMIT_CHECK( 4 * vcnt );
table_size = 4 + 4 * vcnt;
for ( i = 0; i < vcnt; ++i )
{
FT_UInt gid;
gid = FT_NEXT_USHORT( p );
if ( gid >= valid->glyph_count )
FT_INVALID_GLYPH_ID;
p += 2; /* skip the size */
}
OTV_SIZE_CHECK( GlyphAssembly );
if ( GlyphAssembly )
otv_GlyphAssembly_validate( table+GlyphAssembly, valid );
/* OTV_EXIT; */
}
static void
otv_JstfPriority_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt table_size;
FT_UInt gsub_lookup_count, gpos_lookup_count;
OTV_OPTIONAL_TABLE( ShrinkageEnableGSUB );
OTV_OPTIONAL_TABLE( ShrinkageDisableGSUB );
OTV_OPTIONAL_TABLE( ShrinkageEnableGPOS );
OTV_OPTIONAL_TABLE( ShrinkageDisableGPOS );
OTV_OPTIONAL_TABLE( ExtensionEnableGSUB );
OTV_OPTIONAL_TABLE( ExtensionDisableGSUB );
OTV_OPTIONAL_TABLE( ExtensionEnableGPOS );
OTV_OPTIONAL_TABLE( ExtensionDisableGPOS );
OTV_OPTIONAL_TABLE( ShrinkageJstfMax );
OTV_OPTIONAL_TABLE( ExtensionJstfMax );
OTV_ENTER;
OTV_TRACE(( "JstfPriority table\n" ));
OTV_LIMIT_CHECK( 20 );
gsub_lookup_count = valid->extra1;
gpos_lookup_count = valid->extra2;
table_size = 20;
valid->extra1 = gsub_lookup_count;
OTV_OPTIONAL_OFFSET( ShrinkageEnableGSUB );
OTV_SIZE_CHECK( ShrinkageEnableGSUB );
if ( ShrinkageEnableGSUB )
otv_x_ux( table + ShrinkageEnableGSUB, valid );
OTV_OPTIONAL_OFFSET( ShrinkageDisableGSUB );
OTV_SIZE_CHECK( ShrinkageDisableGSUB );
if ( ShrinkageDisableGSUB )
otv_x_ux( table + ShrinkageDisableGSUB, valid );
valid->extra1 = gpos_lookup_count;
OTV_OPTIONAL_OFFSET( ShrinkageEnableGPOS );
OTV_SIZE_CHECK( ShrinkageEnableGPOS );
if ( ShrinkageEnableGPOS )
otv_x_ux( table + ShrinkageEnableGPOS, valid );
OTV_OPTIONAL_OFFSET( ShrinkageDisableGPOS );
OTV_SIZE_CHECK( ShrinkageDisableGPOS );
if ( ShrinkageDisableGPOS )
otv_x_ux( table + ShrinkageDisableGPOS, valid );
OTV_OPTIONAL_OFFSET( ShrinkageJstfMax );
OTV_SIZE_CHECK( ShrinkageJstfMax );
if ( ShrinkageJstfMax )
{
/* XXX: check lookup types? */
OTV_NEST2( JstfMax, JstfLookup );
OTV_RUN( table + ShrinkageJstfMax, valid );
}
valid->extra1 = gsub_lookup_count;
OTV_OPTIONAL_OFFSET( ExtensionEnableGSUB );
OTV_SIZE_CHECK( ExtensionEnableGSUB );
if ( ExtensionEnableGSUB )
otv_x_ux( table + ExtensionEnableGSUB, valid );
OTV_OPTIONAL_OFFSET( ExtensionDisableGSUB );
OTV_SIZE_CHECK( ExtensionDisableGSUB );
if ( ExtensionDisableGSUB )
otv_x_ux( table + ExtensionDisableGSUB, valid );
valid->extra1 = gpos_lookup_count;
OTV_OPTIONAL_OFFSET( ExtensionEnableGPOS );
OTV_SIZE_CHECK( ExtensionEnableGPOS );
if ( ExtensionEnableGPOS )
otv_x_ux( table + ExtensionEnableGPOS, valid );
OTV_OPTIONAL_OFFSET( ExtensionDisableGPOS );
OTV_SIZE_CHECK( ExtensionDisableGPOS );
if ( ExtensionDisableGPOS )
otv_x_ux( table + ExtensionDisableGPOS, valid );
OTV_OPTIONAL_OFFSET( ExtensionJstfMax );
OTV_SIZE_CHECK( ExtensionJstfMax );
if ( ExtensionJstfMax )
{
/* XXX: check lookup types? */
OTV_NEST2( JstfMax, JstfLookup );
OTV_RUN( table + ExtensionJstfMax, valid );
}
valid->extra1 = gsub_lookup_count;
valid->extra2 = gpos_lookup_count;
OTV_EXIT;
}
otv_GDEF_validate( FT_Bytes table,
FT_Bytes gsub,
FT_Bytes gpos,
FT_Validator ftvalid )
{
OTV_ValidatorRec validrec;
OTV_Validator valid = &validrec;
FT_Bytes p = table;
FT_UInt table_size;
FT_Bool need_MarkAttachClassDef;
OTV_OPTIONAL_TABLE( GlyphClassDef );
OTV_OPTIONAL_TABLE( AttachListOffset );
OTV_OPTIONAL_TABLE( LigCaretListOffset );
OTV_OPTIONAL_TABLE( MarkAttachClassDef );
valid->root = ftvalid;
FT_TRACE3(( "validating GDEF table\n" ));
OTV_INIT;
OTV_LIMIT_CHECK( 12 );
if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */
FT_INVALID_FORMAT;
/* MarkAttachClassDef has been added to the OpenType */
/* specification without increasing GDEF's version, */
/* so we use this ugly hack to find out whether the */
/* table is needed actually. */
need_MarkAttachClassDef = FT_BOOL(
otv_GSUBGPOS_have_MarkAttachmentType_flag( gsub ) ||
otv_GSUBGPOS_have_MarkAttachmentType_flag( gpos ) );
if ( need_MarkAttachClassDef )
table_size = 12; /* OpenType >= 1.2 */
else
table_size = 10; /* OpenType < 1.2 */
OTV_OPTIONAL_OFFSET( GlyphClassDef );
OTV_SIZE_CHECK( GlyphClassDef );
if ( GlyphClassDef )
otv_ClassDef_validate( table + GlyphClassDef, valid );
OTV_OPTIONAL_OFFSET( AttachListOffset );
OTV_SIZE_CHECK( AttachListOffset );
if ( AttachListOffset )
{
OTV_NEST2( AttachList, AttachPoint );
OTV_RUN( table + AttachListOffset, valid );
}
OTV_OPTIONAL_OFFSET( LigCaretListOffset );
OTV_SIZE_CHECK( LigCaretListOffset );
if ( LigCaretListOffset )
{
OTV_NEST3( LigCaretList, LigGlyph, CaretValue );
OTV_RUN( table + LigCaretListOffset, valid );
}
if ( need_MarkAttachClassDef )
{
OTV_OPTIONAL_OFFSET( MarkAttachClassDef );
OTV_SIZE_CHECK( MarkAttachClassDef );
if ( MarkAttachClassDef )
otv_ClassDef_validate( table + MarkAttachClassDef, valid );
}
FT_TRACE4(( "\n" ));
}
otv_GDEF_validate( FT_Bytes table,
FT_Bytes gsub,
FT_Bytes gpos,
FT_UInt glyph_count,
FT_Validator ftvalid )
{
OTV_ValidatorRec otvalidrec;
OTV_Validator otvalid = &otvalidrec;
FT_Bytes p = table;
FT_UInt table_size;
FT_UShort version;
FT_Bool need_MarkAttachClassDef = 1;
OTV_OPTIONAL_TABLE( GlyphClassDef );
OTV_OPTIONAL_TABLE( AttachListOffset );
OTV_OPTIONAL_TABLE( LigCaretListOffset );
OTV_OPTIONAL_TABLE( MarkAttachClassDef );
OTV_OPTIONAL_TABLE( MarkGlyphSetsDef );
OTV_OPTIONAL_TABLE32( itemVarStore );
otvalid->root = ftvalid;
FT_TRACE3(( "validating GDEF table\n" ));
OTV_INIT;
OTV_LIMIT_CHECK( 4 );
if ( FT_NEXT_USHORT( p ) != 1 ) /* majorVersion */
FT_INVALID_FORMAT;
version = FT_NEXT_USHORT( p ); /* minorVersion */
table_size = 10;
switch ( version )
{
case 0:
/* MarkAttachClassDef has been added to the OpenType */
/* specification without increasing GDEF's version, */
/* so we use this ugly hack to find out whether the */
/* table is needed actually. */
need_MarkAttachClassDef = FT_BOOL(
otv_GSUBGPOS_have_MarkAttachmentType_flag( gsub ) ||
otv_GSUBGPOS_have_MarkAttachmentType_flag( gpos ) );
if ( need_MarkAttachClassDef )
{
OTV_LIMIT_CHECK( 8 );
table_size += 2;
}
else
OTV_LIMIT_CHECK( 6 ); /* OpenType < 1.2 */
break;
case 2:
OTV_LIMIT_CHECK( 10 );
table_size += 4;
break;
case 3:
OTV_LIMIT_CHECK( 14 );
table_size += 8;
break;
default:
FT_INVALID_FORMAT;
}
otvalid->glyph_count = glyph_count;
OTV_OPTIONAL_OFFSET( GlyphClassDef );
OTV_SIZE_CHECK( GlyphClassDef );
if ( GlyphClassDef )
otv_ClassDef_validate( table + GlyphClassDef, otvalid );
OTV_OPTIONAL_OFFSET( AttachListOffset );
OTV_SIZE_CHECK( AttachListOffset );
if ( AttachListOffset )
{
OTV_NEST2( AttachList, AttachPoint );
OTV_RUN( table + AttachListOffset, otvalid );
}
OTV_OPTIONAL_OFFSET( LigCaretListOffset );
OTV_SIZE_CHECK( LigCaretListOffset );
if ( LigCaretListOffset )
{
OTV_NEST3( LigCaretList, LigGlyph, CaretValue );
OTV_RUN( table + LigCaretListOffset, otvalid );
}
if ( need_MarkAttachClassDef )
{
OTV_OPTIONAL_OFFSET( MarkAttachClassDef );
OTV_SIZE_CHECK( MarkAttachClassDef );
if ( MarkAttachClassDef )
otv_ClassDef_validate( table + MarkAttachClassDef, otvalid );
}
if ( version > 0 )
{
OTV_OPTIONAL_OFFSET( MarkGlyphSetsDef );
OTV_SIZE_CHECK( MarkGlyphSetsDef );
if ( MarkGlyphSetsDef )
otv_MarkGlyphSets_validate( table + MarkGlyphSetsDef, otvalid );
}
if ( version > 2 )
{
OTV_OPTIONAL_OFFSET32( itemVarStore );
OTV_SIZE_CHECK32( itemVarStore );
if ( itemVarStore )
OTV_TRACE(( " [omitting itemVarStore validation]\n" )); /* XXX */
}
FT_TRACE4(( "\n" ));
}
otv_BASE_validate( FT_Bytes table,
FT_Validator ftvalid )
{
OTV_ValidatorRec otvalidrec;
OTV_Validator otvalid = &otvalidrec;
FT_Bytes p = table;
FT_UInt table_size;
FT_UShort version;
OTV_OPTIONAL_TABLE( HorizAxis );
OTV_OPTIONAL_TABLE( VertAxis );
OTV_OPTIONAL_TABLE32( itemVarStore );
otvalid->root = ftvalid;
FT_TRACE3(( "validating BASE table\n" ));
OTV_INIT;
OTV_LIMIT_CHECK( 4 );
if ( FT_NEXT_USHORT( p ) != 1 ) /* majorVersion */
FT_INVALID_FORMAT;
version = FT_NEXT_USHORT( p ); /* minorVersion */
table_size = 8;
switch ( version )
{
case 0:
OTV_LIMIT_CHECK( 4 );
break;
case 1:
OTV_LIMIT_CHECK( 8 );
table_size += 4;
break;
default:
FT_INVALID_FORMAT;
}
OTV_OPTIONAL_OFFSET( HorizAxis );
OTV_SIZE_CHECK( HorizAxis );
if ( HorizAxis )
otv_Axis_validate( table + HorizAxis, otvalid );
OTV_OPTIONAL_OFFSET( VertAxis );
OTV_SIZE_CHECK( VertAxis );
if ( VertAxis )
otv_Axis_validate( table + VertAxis, otvalid );
if ( version > 0 )
{
OTV_OPTIONAL_OFFSET32( itemVarStore );
OTV_SIZE_CHECK32( itemVarStore );
if ( itemVarStore )
OTV_TRACE(( " [omitting itemVarStore validation]\n" )); /* XXX */
}
FT_TRACE4(( "\n" ));
}
