Function enqueue_read_image 

pub unsafe fn enqueue_read_image<T, M, En, Ewl>(
    command_queue: &CommandQueue,
    image: M,
    block: bool,
    origin: [usize; 3],
    region: [usize; 3],
    row_pitch_bytes: usize,
    slc_pitch_bytes: usize,
    data: &mut [T],
    wait_list: Option<Ewl>,
    new_event: Option<En>,
) -> Result<()>
where
    T: OclPrm,
    En: ClNullEventPtr,
    Ewl: ClWaitListPtr,
    M: AsMem<T> + MemCmdRw,

Reads an image from device to host memory.

Safety

Caller must ensure that data lives until the read is complete. Use new_event to monitor it (use [core::EventList::last_clone] if passing an event list as new_event).