Function gl::GetnSeparableFilter

pub unsafe fn GetnSeparableFilter(
    target: GLenum, 
    format: GLenum, 
    type_: GLenum, 
    rowBufSize: GLsizei, 
    row: *mut c_void, 
    columnBufSize: GLsizei, 
    column: *mut c_void, 
    span: *mut c_void
)