point_add_small
point_add_small(pre_comp[i][j][0], pre_comp[i][j][1],
point_add_small(pre->g_pre_comp[i][6][0], pre->g_pre_comp[i][6][1],
point_add_small(pre->g_pre_comp[i][10][0], pre->g_pre_comp[i][10][1],
point_add_small(pre->g_pre_comp[i][12][0], pre->g_pre_comp[i][12][1],
point_add_small(pre->g_pre_comp[i][14][0], pre->g_pre_comp[i][14][1],
point_add_small(pre->g_pre_comp[i][2 * j + 1][0],