fix a couple of loose ends: sdl_mixer is informed of that OGG is provided by Tremor with its own macro, there is no more a segfault on Tremor cleanup, added new event type and timestamp entry for SDL, removed spurious characters from the japanese translation, uSound errors now are output with SDLTry, uSound doesn't need sound preloading any more
/***************************************************************************/
/* */
/* otvgpos.c */
/* */
/* OpenType GPOS table validation (body). */
/* */
/* Copyright 2002, 2004, 2005, 2006, 2007, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
#include "otvalid.h"
#include "otvcommn.h"
#include "otvgpos.h"
/*************************************************************************/
/* */
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
/* messages during execution. */
/* */
#undef FT_COMPONENT
#define FT_COMPONENT trace_otvgpos
static void
otv_Anchor_validate( FT_Bytes table,
OTV_Validator valid );
static void
otv_MarkArray_validate( FT_Bytes table,
OTV_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** UTILITY FUNCTIONS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define BaseArrayFunc otv_x_sxy
#define LigatureAttachFunc otv_x_sxy
#define Mark2ArrayFunc otv_x_sxy
/* uses valid->extra1 (counter) */
/* uses valid->extra2 (boolean to handle NULL anchor field) */
static void
otv_x_sxy( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt Count, count1, table_size;
OTV_ENTER;
OTV_LIMIT_CHECK( 2 );
Count = FT_NEXT_USHORT( p );
OTV_TRACE(( " (Count = %d)\n", Count ));
OTV_LIMIT_CHECK( Count * valid->extra1 * 2 );
table_size = Count * valid->extra1 * 2 + 2;
for ( ; Count > 0; Count-- )
for ( count1 = valid->extra1; count1 > 0; count1-- )
{
OTV_OPTIONAL_TABLE( anchor_offset );
OTV_OPTIONAL_OFFSET( anchor_offset );
if ( valid->extra2 )
{
OTV_SIZE_CHECK( anchor_offset );
if ( anchor_offset )
otv_Anchor_validate( table + anchor_offset, valid );
}
else
otv_Anchor_validate( table + anchor_offset, valid );
}
OTV_EXIT;
}
#define MarkBasePosFormat1Func otv_u_O_O_u_O_O
#define MarkLigPosFormat1Func otv_u_O_O_u_O_O
#define MarkMarkPosFormat1Func otv_u_O_O_u_O_O
/* sets valid->extra1 (class count) */
static void
otv_u_O_O_u_O_O( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt Coverage1, Coverage2, ClassCount;
FT_UInt Array1, Array2;
OTV_Validate_Func func;
OTV_ENTER;
p += 2; /* skip PosFormat */
OTV_LIMIT_CHECK( 10 );
Coverage1 = FT_NEXT_USHORT( p );
Coverage2 = FT_NEXT_USHORT( p );
ClassCount = FT_NEXT_USHORT( p );
Array1 = FT_NEXT_USHORT( p );
Array2 = FT_NEXT_USHORT( p );
otv_Coverage_validate( table + Coverage1, valid, -1 );
otv_Coverage_validate( table + Coverage2, valid, -1 );
otv_MarkArray_validate( table + Array1, valid );
valid->nesting_level++;
func = valid->func[valid->nesting_level];
valid->extra1 = ClassCount;
func( table + Array2, valid );
valid->nesting_level--;
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** VALUE RECORDS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
static FT_UInt
otv_value_length( FT_UInt format )
{
FT_UInt count;
count = ( ( format & 0xAA ) >> 1 ) + ( format & 0x55 );
count = ( ( count & 0xCC ) >> 2 ) + ( count & 0x33 );
count = ( ( count & 0xF0 ) >> 4 ) + ( count & 0x0F );
return count * 2;
}
/* uses valid->extra3 (pointer to base table) */
static void
otv_ValueRecord_validate( FT_Bytes table,
FT_UInt format,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt count;
#ifdef FT_DEBUG_LEVEL_TRACE
FT_Int loop;
FT_ULong res = 0;
OTV_NAME_ENTER( "ValueRecord" );
/* display `format' in dual representation */
for ( loop = 7; loop >= 0; loop-- )
{
res <<= 4;
res += ( format >> loop ) & 1;
}
OTV_TRACE(( " (format 0b%08lx)\n", res ));
#endif
if ( format >= 0x100 )
FT_INVALID_FORMAT;
for ( count = 4; count > 0; count-- )
{
if ( format & 1 )
{
/* XPlacement, YPlacement, XAdvance, YAdvance */
OTV_LIMIT_CHECK( 2 );
p += 2;
}
format >>= 1;
}
for ( count = 4; count > 0; count-- )
{
if ( format & 1 )
{
FT_PtrDist table_size;
OTV_OPTIONAL_TABLE( device );
/* XPlaDevice, YPlaDevice, XAdvDevice, YAdvDevice */
OTV_LIMIT_CHECK( 2 );
OTV_OPTIONAL_OFFSET( device );
/* XXX: this value is usually too small, especially if the current */
/* ValueRecord is part of an array -- getting the correct table */
/* size is probably not worth the trouble */
table_size = p - valid->extra3;
OTV_SIZE_CHECK( device );
if ( device )
otv_Device_validate( valid->extra3 + device, valid );
}
format >>= 1;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** ANCHORS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
static void
otv_Anchor_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt AnchorFormat;
OTV_NAME_ENTER( "Anchor");
OTV_LIMIT_CHECK( 6 );
AnchorFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", AnchorFormat ));
p += 4; /* skip XCoordinate and YCoordinate */
switch ( AnchorFormat )
{
case 1:
break;
case 2:
OTV_LIMIT_CHECK( 2 ); /* AnchorPoint */
break;
case 3:
{
FT_UInt table_size;
OTV_OPTIONAL_TABLE( XDeviceTable );
OTV_OPTIONAL_TABLE( YDeviceTable );
OTV_LIMIT_CHECK( 4 );
OTV_OPTIONAL_OFFSET( XDeviceTable );
OTV_OPTIONAL_OFFSET( YDeviceTable );
table_size = 6 + 4;
OTV_SIZE_CHECK( XDeviceTable );
if ( XDeviceTable )
otv_Device_validate( table + XDeviceTable, valid );
OTV_SIZE_CHECK( YDeviceTable );
if ( YDeviceTable )
otv_Device_validate( table + YDeviceTable, valid );
}
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** MARK ARRAYS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
static void
otv_MarkArray_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt MarkCount;
OTV_NAME_ENTER( "MarkArray" );
OTV_LIMIT_CHECK( 2 );
MarkCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (MarkCount = %d)\n", MarkCount ));
OTV_LIMIT_CHECK( MarkCount * 4 );
/* MarkRecord */
for ( ; MarkCount > 0; MarkCount-- )
{
p += 2; /* skip Class */
/* MarkAnchor */
otv_Anchor_validate( table + FT_NEXT_USHORT( p ), valid );
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 1 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->extra3 (pointer to base table) */
static void
otv_SinglePos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "SinglePos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
valid->extra3 = table;
switch ( PosFormat )
{
case 1: /* SinglePosFormat1 */
{
FT_UInt Coverage, ValueFormat;
OTV_LIMIT_CHECK( 4 );
Coverage = FT_NEXT_USHORT( p );
ValueFormat = FT_NEXT_USHORT( p );
otv_Coverage_validate( table + Coverage, valid, -1 );
otv_ValueRecord_validate( p, ValueFormat, valid ); /* Value */
}
break;
case 2: /* SinglePosFormat2 */
{
FT_UInt Coverage, ValueFormat, ValueCount, len_value;
OTV_LIMIT_CHECK( 6 );
Coverage = FT_NEXT_USHORT( p );
ValueFormat = FT_NEXT_USHORT( p );
ValueCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (ValueCount = %d)\n", ValueCount ));
len_value = otv_value_length( ValueFormat );
otv_Coverage_validate( table + Coverage, valid, ValueCount );
OTV_LIMIT_CHECK( ValueCount * len_value );
/* Value */
for ( ; ValueCount > 0; ValueCount-- )
{
otv_ValueRecord_validate( p, ValueFormat, valid );
p += len_value;
}
}
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 2 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
static void
otv_PairSet_validate( FT_Bytes table,
FT_UInt format1,
FT_UInt format2,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt value_len1, value_len2, PairValueCount;
OTV_NAME_ENTER( "PairSet" );
OTV_LIMIT_CHECK( 2 );
PairValueCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (PairValueCount = %d)\n", PairValueCount ));
value_len1 = otv_value_length( format1 );
value_len2 = otv_value_length( format2 );
OTV_LIMIT_CHECK( PairValueCount * ( value_len1 + value_len2 + 2 ) );
/* PairValueRecord */
for ( ; PairValueCount > 0; PairValueCount-- )
{
p += 2; /* skip SecondGlyph */
if ( format1 )
otv_ValueRecord_validate( p, format1, valid ); /* Value1 */
p += value_len1;
if ( format2 )
otv_ValueRecord_validate( p, format2, valid ); /* Value2 */
p += value_len2;
}
OTV_EXIT;
}
/* sets valid->extra3 (pointer to base table) */
static void
otv_PairPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "PairPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
valid->extra3 = table;
switch ( PosFormat )
{
case 1: /* PairPosFormat1 */
{
FT_UInt Coverage, ValueFormat1, ValueFormat2, PairSetCount;
OTV_LIMIT_CHECK( 8 );
Coverage = FT_NEXT_USHORT( p );
ValueFormat1 = FT_NEXT_USHORT( p );
ValueFormat2 = FT_NEXT_USHORT( p );
PairSetCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (PairSetCount = %d)\n", PairSetCount ));
otv_Coverage_validate( table + Coverage, valid, -1 );
OTV_LIMIT_CHECK( PairSetCount * 2 );
/* PairSetOffset */
for ( ; PairSetCount > 0; PairSetCount-- )
otv_PairSet_validate( table + FT_NEXT_USHORT( p ),
ValueFormat1, ValueFormat2, valid );
}
break;
case 2: /* PairPosFormat2 */
{
FT_UInt Coverage, ValueFormat1, ValueFormat2, ClassDef1, ClassDef2;
FT_UInt ClassCount1, ClassCount2, len_value1, len_value2, count;
OTV_LIMIT_CHECK( 14 );
Coverage = FT_NEXT_USHORT( p );
ValueFormat1 = FT_NEXT_USHORT( p );
ValueFormat2 = FT_NEXT_USHORT( p );
ClassDef1 = FT_NEXT_USHORT( p );
ClassDef2 = FT_NEXT_USHORT( p );
ClassCount1 = FT_NEXT_USHORT( p );
ClassCount2 = FT_NEXT_USHORT( p );
OTV_TRACE(( " (ClassCount1 = %d)\n", ClassCount1 ));
OTV_TRACE(( " (ClassCount2 = %d)\n", ClassCount2 ));
len_value1 = otv_value_length( ValueFormat1 );
len_value2 = otv_value_length( ValueFormat2 );
otv_Coverage_validate( table + Coverage, valid, -1 );
otv_ClassDef_validate( table + ClassDef1, valid );
otv_ClassDef_validate( table + ClassDef2, valid );
OTV_LIMIT_CHECK( ClassCount1 * ClassCount2 *
( len_value1 + len_value2 ) );
/* Class1Record */
for ( ; ClassCount1 > 0; ClassCount1-- )
{
/* Class2Record */
for ( count = ClassCount2; count > 0; count-- )
{
if ( ValueFormat1 )
/* Value1 */
otv_ValueRecord_validate( p, ValueFormat1, valid );
p += len_value1;
if ( ValueFormat2 )
/* Value2 */
otv_ValueRecord_validate( p, ValueFormat2, valid );
p += len_value2;
}
}
}
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 3 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
static void
otv_CursivePos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "CursivePos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1: /* CursivePosFormat1 */
{
FT_UInt table_size;
FT_UInt Coverage, EntryExitCount;
OTV_OPTIONAL_TABLE( EntryAnchor );
OTV_OPTIONAL_TABLE( ExitAnchor );
OTV_LIMIT_CHECK( 4 );
Coverage = FT_NEXT_USHORT( p );
EntryExitCount = FT_NEXT_USHORT( p );
OTV_TRACE(( " (EntryExitCount = %d)\n", EntryExitCount ));
otv_Coverage_validate( table + Coverage, valid, EntryExitCount );
OTV_LIMIT_CHECK( EntryExitCount * 4 );
table_size = EntryExitCount * 4 + 4;
/* EntryExitRecord */
for ( ; EntryExitCount > 0; EntryExitCount-- )
{
OTV_OPTIONAL_OFFSET( EntryAnchor );
OTV_OPTIONAL_OFFSET( ExitAnchor );
OTV_SIZE_CHECK( EntryAnchor );
if ( EntryAnchor )
otv_Anchor_validate( table + EntryAnchor, valid );
OTV_SIZE_CHECK( ExitAnchor );
if ( ExitAnchor )
otv_Anchor_validate( table + ExitAnchor, valid );
}
}
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 4 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* UNDOCUMENTED (in OpenType 1.5): */
/* BaseRecord tables can contain NULL pointers. */
/* sets valid->extra2 (1) */
static void
otv_MarkBasePos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "MarkBasePos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1:
valid->extra2 = 1;
OTV_NEST2( MarkBasePosFormat1, BaseArray );
OTV_RUN( table, valid );
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 5 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->extra2 (1) */
static void
otv_MarkLigPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "MarkLigPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1:
valid->extra2 = 1;
OTV_NEST3( MarkLigPosFormat1, LigatureArray, LigatureAttach );
OTV_RUN( table, valid );
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 6 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->extra2 (0) */
static void
otv_MarkMarkPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "MarkMarkPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1:
valid->extra2 = 0;
OTV_NEST2( MarkMarkPosFormat1, Mark2Array );
OTV_RUN( table, valid );
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 7 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->extra1 (lookup count) */
static void
otv_ContextPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "ContextPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1:
/* no need to check glyph indices/classes used as input for these */
/* context rules since even invalid glyph indices/classes return */
/* meaningful results */
valid->extra1 = valid->lookup_count;
OTV_NEST3( ContextPosFormat1, PosRuleSet, PosRule );
OTV_RUN( table, valid );
break;
case 2:
/* no need to check glyph indices/classes used as input for these */
/* context rules since even invalid glyph indices/classes return */
/* meaningful results */
OTV_NEST3( ContextPosFormat2, PosClassSet, PosClassRule );
OTV_RUN( table, valid );
break;
case 3:
OTV_NEST1( ContextPosFormat3 );
OTV_RUN( table, valid );
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 8 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->extra1 (lookup count) */
static void
otv_ChainContextPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "ChainContextPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1:
/* no need to check glyph indices/classes used as input for these */
/* context rules since even invalid glyph indices/classes return */
/* meaningful results */
valid->extra1 = valid->lookup_count;
OTV_NEST3( ChainContextPosFormat1,
ChainPosRuleSet, ChainPosRule );
OTV_RUN( table, valid );
break;
case 2:
/* no need to check glyph indices/classes used as input for these */
/* context rules since even invalid glyph indices/classes return */
/* meaningful results */
OTV_NEST3( ChainContextPosFormat2,
ChainPosClassSet, ChainPosClassRule );
OTV_RUN( table, valid );
break;
case 3:
OTV_NEST1( ChainContextPosFormat3 );
OTV_RUN( table, valid );
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS LOOKUP TYPE 9 *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* uses valid->type_funcs */
static void
otv_ExtensionPos_validate( FT_Bytes table,
OTV_Validator valid )
{
FT_Bytes p = table;
FT_UInt PosFormat;
OTV_NAME_ENTER( "ExtensionPos" );
OTV_LIMIT_CHECK( 2 );
PosFormat = FT_NEXT_USHORT( p );
OTV_TRACE(( " (format %d)\n", PosFormat ));
switch ( PosFormat )
{
case 1: /* ExtensionPosFormat1 */
{
FT_UInt ExtensionLookupType;
FT_ULong ExtensionOffset;
OTV_Validate_Func validate;
OTV_LIMIT_CHECK( 6 );
ExtensionLookupType = FT_NEXT_USHORT( p );
ExtensionOffset = FT_NEXT_ULONG( p );
if ( ExtensionLookupType == 0 || ExtensionLookupType >= 9 )
FT_INVALID_DATA;
validate = valid->type_funcs[ExtensionLookupType - 1];
validate( table + ExtensionOffset, valid );
}
break;
default:
FT_INVALID_FORMAT;
}
OTV_EXIT;
}
static const OTV_Validate_Func otv_gpos_validate_funcs[9] =
{
otv_SinglePos_validate,
otv_PairPos_validate,
otv_CursivePos_validate,
otv_MarkBasePos_validate,
otv_MarkLigPos_validate,
otv_MarkMarkPos_validate,
otv_ContextPos_validate,
otv_ChainContextPos_validate,
otv_ExtensionPos_validate
};
/* sets valid->type_count */
/* sets valid->type_funcs */
FT_LOCAL_DEF( void )
otv_GPOS_subtable_validate( FT_Bytes table,
OTV_Validator valid )
{
valid->type_count = 9;
valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs;
otv_Lookup_validate( table, valid );
}
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** GPOS TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* sets valid->glyph_count */
FT_LOCAL_DEF( void )
otv_GPOS_validate( FT_Bytes table,
FT_UInt glyph_count,
FT_Validator ftvalid )
{
OTV_ValidatorRec validrec;
OTV_Validator valid = &validrec;
FT_Bytes p = table;
FT_UInt ScriptList, FeatureList, LookupList;
valid->root = ftvalid;
FT_TRACE3(( "validating GPOS table\n" ));
OTV_INIT;
OTV_LIMIT_CHECK( 10 );
if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */
FT_INVALID_FORMAT;
ScriptList = FT_NEXT_USHORT( p );
FeatureList = FT_NEXT_USHORT( p );
LookupList = FT_NEXT_USHORT( p );
valid->type_count = 9;
valid->type_funcs = (OTV_Validate_Func*)otv_gpos_validate_funcs;
valid->glyph_count = glyph_count;
otv_LookupList_validate( table + LookupList,
valid );
otv_FeatureList_validate( table + FeatureList, table + LookupList,
valid );
otv_ScriptList_validate( table + ScriptList, table + FeatureList,
valid );
FT_TRACE4(( "\n" ));
}
/* END */