Function bayerrs_raster_mut_alloc 

#[unsafe(no_mangle)]
pub extern "C" fn bayerrs_raster_mut_alloc(
    x: size_t,
    y: size_t,
    w: size_t,
    h: size_t,
    stride: size_t,
    depth: c_uint,
    buf: *mut c_uchar,
    buf_len: size_t,
) -> *mut CRasterMut

Allocate a new raster.