DVS_BLOCKDIM_X
DVS_BLOCKDIM_X, DVS_BLOCKDIM_Y_LUMA >> uv_flag);
DVS_BLOCKDIM_X) << DVS_COORD_FRAC_BITS;
DVS_BLOCKDIM_X) << DVS_COORD_FRAC_BITS;
#define DVS_NUM_BLOCKS_X(X) round_up(DIV_ROUND_UP((X), DVS_BLOCKDIM_X), 2)
#define DVS_NUM_BLOCKS_X_CHROMA(X) DIV_ROUND_UP((X), DVS_BLOCKDIM_X)