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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-08-09 22:03:49 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-08-19 22:41:13 +0300 |
| commit | 0fd37c00d728becba6c49aff9efaf7cae17d46d7 (patch) | |
| tree | 7a799319d6ccfbceb385d2ee8c054134ab802f1f /libavcodec/riscv/mpegvideoencdsp_rvv.S | |
| parent | 63d016aea5d9e6e10f68b29d001dd708b29f869f (diff) | |
| download | ffmpeg-0fd37c00d728becba6c49aff9efaf7cae17d46d7.tar.gz | |
lavc/mpegvideoencdsp: R-V V pix_norm1
T-Head C908:
pix_norm1_c: 480.2
pix_norm1_rvv_i64: 146.9
SpacemiT X60:
pix_norm1_c: 478.2
pix_norm1_rvv_i64: 92.7
Diffstat (limited to 'libavcodec/riscv/mpegvideoencdsp_rvv.S')
| -rw-r--r-- | libavcodec/riscv/mpegvideoencdsp_rvv.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/libavcodec/riscv/mpegvideoencdsp_rvv.S b/libavcodec/riscv/mpegvideoencdsp_rvv.S index 83cd919b7c..2f25b00eb2 100644 --- a/libavcodec/riscv/mpegvideoencdsp_rvv.S +++ b/libavcodec/riscv/mpegvideoencdsp_rvv.S @@ -44,3 +44,30 @@ func ff_pix_sum_rvv, zve64x, b zext.h a0, a0 ret endfunc + +func ff_pix_norm1_rvv, zve64x + lpad 0 + li t1, 16 + vsetvli t0, zero, e32, m8, ta, ma + vmv.v.x v16, zero + vmv.s.x v1, zero +1: + vsetvli t0, t1, e64, m2, ta, ma + vlsseg2e64.v v8, (a0), a1 + slli t2, t0, 3 + vsetvli zero, t2, e8, m2, ta, ma + vwmulu.vv v24, v8, v8 + sub t1, t1, t0 + vwmulu.vv v28, v10, v10 + mul t3, a1, t0 + vsetvli zero, zero, e16, m4, tu, ma + vwaddu.wv v16, v16, v24 + add a0, t3, a0 + vwaddu.wv v16, v16, v28 + bnez t1, 1b + + vsetvli zero, zero, e32, m8, ta, ma + vredsum.vs v1, v16, v1 + vmv.x.s a0, v1 + ret +endfunc |