static FT_Error
otv_validate( FT_Face face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte *base, *gdef, *gpos, *gsub, *jstf;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ValidatorRec valid;
base = gdef = gpos = gsub = jstf = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = 0;
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GPOS_validate( gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GSUB_validate( gsub, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_validator_run( &valid ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
return error;
}
static FT_Error
otv_validate( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte* volatile base;
FT_Byte* volatile gdef;
FT_Byte* volatile gpos;
FT_Byte* volatile gsub;
FT_Byte* volatile jstf;
FT_Byte* volatile math;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ULong len_math;
FT_UInt num_glyphs = (FT_UInt)face->num_glyphs;
FT_ValidatorRec volatile valid;
base = gdef = gpos = gsub = jstf = math = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0;
/*
* XXX: OpenType tables cannot handle 32-bit glyph index,
* although broken TrueType can have 32-bit glyph index.
*/
if ( face->num_glyphs > 0xFFFFL )
{
FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ",
face->num_glyphs ));
FT_TRACE1(( "are not handled by OpenType tables\n" ));
num_glyphs = 0xFFFF;
}
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_MATH )
{
error = otv_load_table( face, TTAG_MATH, &math, &len_math );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GPOS_validate( gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GSUB_validate( gsub, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( math )
{
ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_MATH_validate( math, num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
{
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( math ); /* Can't return this as API is frozen */
}
return error;
}
static FT_Error
otv_validate( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *ot_base,
FT_Bytes *ot_gdef,
FT_Bytes *ot_gpos,
FT_Bytes *ot_gsub,
FT_Bytes *ot_jstf )
{
FT_Error error = OTV_Err_Ok;
FT_Byte* volatile base;
FT_Byte* volatile gdef;
FT_Byte* volatile gpos;
FT_Byte* volatile gsub;
FT_Byte* volatile jstf;
FT_Byte* volatile math;
FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf;
FT_ULong len_math;
FT_ValidatorRec volatile valid;
base = gdef = gpos = gsub = jstf = math = NULL;
len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0;
/* load tables */
if ( ot_flags & FT_VALIDATE_BASE )
{
error = otv_load_table( face, TTAG_BASE, &base, &len_base );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GDEF )
{
error = otv_load_table( face, TTAG_GDEF, &gdef, &len_gdef );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GPOS )
{
error = otv_load_table( face, TTAG_GPOS, &gpos, &len_gpos );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_GSUB )
{
error = otv_load_table( face, TTAG_GSUB, &gsub, &len_gsub );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_JSTF )
{
error = otv_load_table( face, TTAG_JSTF, &jstf, &len_jstf );
if ( error )
goto Exit;
}
if ( ot_flags & FT_VALIDATE_MATH )
{
error = otv_load_table( face, TTAG_MATH, &math, &len_math );
if ( error )
goto Exit;
}
/* validate tables */
if ( base )
{
ft_validator_init( &valid, base, base + len_base, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_BASE_validate( base, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gpos )
{
ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GPOS_validate( gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gsub )
{
ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GSUB_validate( gsub, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( gdef )
{
ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_GDEF_validate( gdef, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( jstf )
{
ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_JSTF_validate( jstf, gsub, gpos, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
if ( math )
{
ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT );
if ( ft_setjmp( valid.jump_buffer ) == 0 )
otv_MATH_validate( math, face->num_glyphs, &valid );
error = valid.error;
if ( error )
goto Exit;
}
*ot_base = (FT_Bytes)base;
*ot_gdef = (FT_Bytes)gdef;
*ot_gpos = (FT_Bytes)gpos;
*ot_gsub = (FT_Bytes)gsub;
*ot_jstf = (FT_Bytes)jstf;
Exit:
if ( error ) {
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( base );
FT_FREE( gdef );
FT_FREE( gpos );
FT_FREE( gsub );
FT_FREE( jstf );
}
{
FT_Memory memory = FT_FACE_MEMORY( face );
FT_FREE( math ); /* Can't return this as API is frozen */
}
return error;
}