lavc/vp8dsp: R-V V put_bilin_h v unroll

Since len < 64, the registers are sufficient, so it can be
directly unrolled (a4 is even).

Another benefit of unrolling is that it reduces one load operation
vertically compared to horizontally.

                                 old                 new
                             C908   X60          C908   X60
vp8_put_bilin4_h_c         :    6.2    5.5     :    6.2    5.5
vp8_put_bilin4_h_rvv_i32   :    2.2    2.0     :    1.5    1.5
vp8_put_bilin4_v_c         :    6.5    5.7     :    6.2    5.7
vp8_put_bilin4_v_rvv_i32   :    2.2    2.0     :    1.2    1.5
vp8_put_bilin8_h_c         :   24.2   21.5     :   24.2   21.5
vp8_put_bilin8_h_rvv_i32   :    5.2    4.7     :    3.5    3.5
vp8_put_bilin8_v_c         :   24.5   21.7     :   24.5   21.7
vp8_put_bilin8_v_rvv_i32   :    5.2    4.7     :    3.5    3.2
vp8_put_bilin16_h_c        :   48.0   42.7     :   48.0   42.7
vp8_put_bilin16_h_rvv_i32  :    5.7    5.0     :    5.2    4.5
vp8_put_bilin16_v_c        :   48.2   43.0     :   48.2   42.7
vp8_put_bilin16_v_rvv_i32  :    5.7    5.2     :    4.5    4.2

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

0 files changed, 0 insertions, 0 deletions