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| author | Rémi Denis-Courmont <remi@remlab.net> | 2023-07-18 20:25:13 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2023-07-21 22:18:02 +0300 |
| commit | c2b38619c081658b303d1669155803d2aebf3f6a (patch) | |
| tree | 3783571f0c1c9fe1264e578be3406ac9cd444a82 | |
| parent | 15982554e694e3ccf8d72677e401ded86ca5605b (diff) | |
| download | ffmpeg-c2b38619c081658b303d1669155803d2aebf3f6a.tar.gz | |
swscale/rgb2rgb2: rework RISC-V V shuffle_bytes_{1230,3012}
This avoids strided loads.
Before:
shuffle_bytes_1230_rvv_i32: 308.7
shuffle_bytes_3012_rvv_i32: 308.7
After:
shuffle_bytes_1230_rvv_i32: 46.7
shuffle_bytes_3012_rvv_i32: 46.7
| -rw-r--r-- | libswscale/riscv/rgb2rgb_rvv.S | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/libswscale/riscv/rgb2rgb_rvv.S b/libswscale/riscv/rgb2rgb_rvv.S index 366f80c1c3..0ac3afff7c 100644 --- a/libswscale/riscv/rgb2rgb_rvv.S +++ b/libswscale/riscv/rgb2rgb_rvv.S @@ -49,19 +49,29 @@ func ff_shuffle_bytes_2103_rvv, zve32x endfunc func ff_shuffle_bytes_1230_rvv, zve32x - addi t1, a0, 2 - addi t2, a0, 3 - addi t3, a0, 0 - addi a0, a0, 1 - j 1b + li t1, 24 + li t2, 8 + j 3f endfunc func ff_shuffle_bytes_3012_rvv, zve32x - addi t1, a0, 0 - addi t2, a0, 1 - addi t3, a0, 2 - addi a0, a0, 3 - j 1b + li t1, 8 + li t2, 24 +3: + srai a2, a2, 2 +4: + vsetvli t0, a2, e32, m8, ta, ma + vle32.v v8, (a0) + sub a2, a2, t0 + vsll.vx v16, v8, t1 + sh2add a0, t0, a0 + vsrl.vx v8, v8, t2 + vor.vv v16, v16, v8 + vse32.v v16, (a1) + sh2add a1, t0, a1 + bnez a2, 4b + + ret endfunc func ff_shuffle_bytes_3210_rvv, zve32x |