BLARGG_EXPORT fex_err_t fex_identify_file( fex_type_t* type_out, const char path [] )
{
*type_out = NULL;
fex_type_t type = fex_identify_extension( path );
// Unsupported extension?
if ( !type )
return blargg_ok; // reject
// Unknown/no extension?
if ( !*(type->extension) )
{
// Examine header
FEX_FILE_READER in;
RETURN_ERR( in.open( path ) );
if ( in.remain() >= fex_identify_header_size )
{
char h [fex_identify_header_size];
RETURN_ERR( in.read( h, sizeof h ) );
type = fex_identify_extension( fex_identify_header( h ) );
}
}
*type_out = type;
return blargg_ok;
}
blargg_err_t File_Extractor::open_arc_file( bool unbuffered )
{
if ( reader_ )
return blargg_ok;
FEX_FILE_READER* in = BLARGG_NEW FEX_FILE_READER;
CHECK_ALLOC( in );
blargg_err_t err = in->open( arc_path() );
if ( err )
{
delete in;
}
else
{
reader_ = in;
own_file();
if ( unbuffered )
make_unbuffered( in );
}
return err;
}
