Function TCOD_heightmap_kernel_transform 

pub unsafe extern "C" fn TCOD_heightmap_kernel_transform(
    hm: *mut TCOD_heightmap_t,
    kernelsize: c_int,
    dx: *const c_int,
    dy: *const c_int,
    weight: *const f32,
    minLevel: f32,
    maxLevel: f32,
)