+/*
+ Cache binom(3,j) t^j (1-t)^{3-j}
+*/
+static struct Polynomial bezier_term_cache[4];
+static bool done_cache_init;
+
+void
+init_polynomial_cache ()
+{
+ for (int j = 0; j <= 3; j++)
+ bezier_term_cache[j]
+ = binomial_coefficient_3[j]
+ * Polynomial::power (j, Polynomial (0, 1))
+ * Polynomial::power (3 - j, Polynomial (1, -1));
+ done_cache_init = true;
+}