PIPE_RIGHT
stage[pstate->stage][PIPE_RIGHT] = right_pipe;
r_stage[pstate->stage][PIPE_RIGHT] = right_pipe;
mdp_ctl_blend_mask(stage[i][PIPE_RIGHT], i);
mdp_ctl_blend_ext_mask(stage[i][PIPE_RIGHT], i);
mdp_ctl_blend_mask(r_stage[i][PIPE_RIGHT], i);
mdp_ctl_blend_ext_mask(r_stage[i][PIPE_RIGHT], i);