ALPHA_STRAIGHT
SRC_ALPHA_M0(ALPHA_STRAIGHT) |
alpha->src_color_ctrl.bits.alpha_mode = ALPHA_STRAIGHT;
alpha->dst_color_ctrl.bits.alpha_mode = ALPHA_STRAIGHT;
alpha->src_alpha_ctrl.bits.alpha_mode = ALPHA_STRAIGHT;
alpha->dst_alpha_ctrl.bits.alpha_mode = ALPHA_STRAIGHT;