static void
gxv_opbd_LookupValue_validate( FT_UShort glyph,
GXV_LookupValueCPtr value_p,
GXV_Validator gxvalid )
{
/* offset in LookupTable is measured from the head of opbd table */
FT_Bytes p = gxvalid->root->base + value_p->u;
FT_Bytes limit = gxvalid->root->limit;
FT_Short delta_value;
int i;
if ( value_p->u < GXV_OPBD_DATA( valueOffset_min ) )
GXV_OPBD_DATA( valueOffset_min ) = value_p->u;
for ( i = 0; i < 4; i++ )
{
GXV_LIMIT_CHECK( 2 );
delta_value = FT_NEXT_SHORT( p );
if ( GXV_OPBD_DATA( format ) ) /* format 1, value is ctrl pt. */
{
if ( delta_value == -1 )
continue;
gxv_ctlPoint_validate( glyph, (FT_UShort)delta_value, gxvalid );
}
else /* format 0, value is distance */
continue;
}
}
static void
gxv_lcar_partial_validate( FT_UShort partial,
FT_UShort glyph,
GXV_Validator valid )
{
GXV_NAME_ENTER( "partial" );
if ( GXV_LCAR_DATA( format ) != 1 )
goto Exit;
gxv_ctlPoint_validate( glyph, partial, valid );
Exit:
GXV_EXIT;
}
static void
gxv_bsln_parts_fmt2_validate( FT_Bytes tables,
FT_Bytes limit,
GXV_Validator valid )
{
FT_Bytes p = tables;
FT_UShort stdGlyph;
FT_UShort ctlPoint;
FT_Int i;
FT_UShort defaultBaseline = GXV_BSLN_DATA( defaultBaseline );
GXV_NAME_ENTER( "parts format 2" );
GXV_LIMIT_CHECK( 2 + ( 2 * GXV_BSLN_VALUE_COUNT ) );
/* stdGlyph */
stdGlyph = FT_NEXT_USHORT( p );
GXV_TRACE(( " (stdGlyph = %u)\n", stdGlyph ));
gxv_glyphid_validate( stdGlyph, valid );
/* Record the position of ctlPoints */
GXV_BSLN_DATA( ctlPoints_p ) = p;
/* ctlPoints */
for ( i = 0; i < GXV_BSLN_VALUE_COUNT; i++ )
{
ctlPoint = FT_NEXT_USHORT( p );
if ( ctlPoint == GXV_BSLN_VALUE_EMPTY )
{
if ( i == defaultBaseline )
FT_INVALID_DATA;
}
else
gxv_ctlPoint_validate( stdGlyph, (FT_Short)ctlPoint, valid );
}
GXV_EXIT;
}