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#include "otlbase.h"
#include "otlcommn.h"
static void
otl_base_coord_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt format;
OTL_CHECK( 4 );
format = OTL_NEXT_USHORT( p );
p += 2;
switch ( format )
{
case 1:
break;
case 2:
OTL_CHECK( 4 );
break;
case 3:
OTL_CHECK( 2 );
otl_device_table_validate( table + OTL_PEEK_USHORT( p ) );
break;
default:
OTL_INVALID_DATA;
}
}
static void
otl_base_tag_list_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt count;
OTL_CHECK(2);
count = OTL_NEXT_USHORT( p );
OTL_CHECK( count*4 );
}
static void
otl_base_values_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt count;
OTL_CHECK( 4 );
p += 2; /* skip default index */
count = OTL_NEXT_USHORT( p );
OTL_CHECK( count*2 );
for ( ; count > 0; count-- )
otl_base_coord_validate( table + OTL_NEXT_USHORT( p ), valid );
}
static void
otl_base_minmax_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt min_coord, max_coord, count;
OTL_CHECK(6);
min_coord = OTL_NEXT_USHORT( p );
max_coord = OTL_NEXT_USHORT( p );
count = OTL_NEXT_USHORT( p );
if ( min_coord )
otl_base_coord_validate( table + min_coord, valid );
if ( max_coord )
otl_base_coord_validate( table + max_coord, valid );
OTL_CHECK( count*8 );
for ( ; count > 0; count-- )
{
p += 4; /* ignore tag */
min_coord = OTL_NEXT_USHORT( p );
max_coord = OTL_NEXT_USHORT( p );
if ( min_coord )
otl_base_coord_validate( table + min_coord, valid );
if ( max_coord )
otl_base_coord_validate( table + max_coord, valid );
}
}
static void
otl_base_script_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt values, default_minmax;
OTL_CHECK(6);
values = OTL_NEXT_USHORT( p );
default_minmax = OTL_NEXT_USHORT( p );
count = OTL_NEXT_USHORT( p );
if ( values )
otl_base_values_validate( table + values, valid );
if ( default_minmax )
otl_base_minmax_validate( table + default_minmax, valid );
OTL_CHECK( count*6 );
for ( ; count > 0; count-- )
{
p += 4; /* ignore tag */
otl_base_minmax_validate( table + OTL_NEXT_USHORT( p ), valid );
}
}
static void
otl_base_script_list_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt count;
OTL_CHECK(2);
count = OTL_NEXT_USHORT( p );
OTL_CHECK(count*6);
for ( ; count > 0; count-- )
{
p += 4; /* ignore script tag */
otl_base_script_validate( table + OTL_NEXT_USHORT( p ) );
}
}
static void
otl_axis_table_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_UInt tags;
OTL_CHECK(4);
tags = OTL_NEXT_USHORT( p );
if ( tags )
otl_base_tag_list_validate ( table + tags );
otl_base_script_list_validate( table + OTL_NEXT_USHORT( p ) );
}
OTL_LOCALDEF( void )
otl_base_validate( OTL_Bytes table,
OTL_Validator valid )
{
OTL_Bytes p = table;
OTL_CHECK(6);
if ( OTL_NEXT_ULONG( p ) != 0x10000UL )
OTL_INVALID_DATA;
otl_axis_table_validate( table + OTL_NEXT_USHORT( p ) );
otl_axis_table_validate( table + OTL_NEXT_USHORT( p ) );
}
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