pub unsafe extern "C" fn graphene_matrix_transform_point3d(
m: *const graphene_matrix_t,
p: *const graphene_point3d_t,
res: *mut graphene_point3d_t,
)
pub unsafe extern "C" fn graphene_matrix_transform_point3d(
m: *const graphene_matrix_t,
p: *const graphene_point3d_t,
res: *mut graphene_point3d_t,
)