CTL_MERGE_3D_ACTIVE
merge_3d_active = DPU_REG_READ(c, CTL_MERGE_3D_ACTIVE);
DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE, merge_3d_active);
merge3d_active = DPU_REG_READ(c, CTL_MERGE_3D_ACTIVE);
DPU_REG_WRITE(c, CTL_MERGE_3D_ACTIVE,