Function pconvert_rust::compose::compose_parallel

pub fn compose_parallel(
    dir: &str,
    algorithm: BlendAlgorithm,
    background: &Background,
    compression: CompressionType,
    filter: FilterType,
    benchmark: &mut Benchmark
) -> Result<String, PConvertError>

Multi-threaded version of the compose testing utility Reads each PNG in a different thread and makes use of the mtpng library to write the final composition