-/* Y delta tables, skinny and fat */
-static int16_t ydt1[8] = { 0, -2, 2, -6, 6, -12, 12, -12 };
-static int16_t ydt2[8] = { 0, -2, 2, -6, 6, -12, 12, -12 };
-static int16_t ydt3[8] = { 4, -6, 20, -20, 46, -46, 94, -94 };
-static int16_t fat_ydt3[8] = { 0, -15, 50, -50, 115, -115, 235, -235 };
-static int16_t ydt4[8] = { 0, -4, 4, -16, 16, -36, 36, -80 };
-static int16_t fat_ydt4[8] = { 0, 40, 80, -76, 160, -154, 236, -236 };