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| author | Rémi Denis-Courmont <remi@remlab.net> | 2022-09-26 17:52:37 +0300 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2022-09-27 13:19:52 +0200 |
| commit | b493370662eaa87f84450e876b8b61b34d91f23d (patch) | |
| tree | 61185b43b398c0ad2b3813e26fbf5148fe594936 /libavutil/riscv/float_dsp_rvv.S | |
| parent | 9aeb6aca3a9fa8caf8db263de4fa9f8077ba6634 (diff) | |
| download | ffmpeg-b493370662eaa87f84450e876b8b61b34d91f23d.tar.gz | |
lavu/floatdsp: RISC-V V vector_fmul_window
Diffstat (limited to 'libavutil/riscv/float_dsp_rvv.S')
| -rw-r--r-- | libavutil/riscv/float_dsp_rvv.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index fbd2777463..ce530f6108 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -74,6 +74,39 @@ NOHWF mv a2, a3 ret endfunc +func ff_vector_fmul_window_rvv, zve32f + // a0: dst, a1: src0, a2: src1, a3: window, a4: length + addi t0, a4, -1 + add t1, t0, a4 + sh2add a2, t0, a2 + sh2add t0, t1, a0 + sh2add t3, t1, a3 + li t1, -4 // byte stride +1: + vsetvli t2, a4, e32, m1, ta, ma + vle32.v v16, (a1) + slli t4, t2, 2 + vlse32.v v20, (a2), t1 + sub a4, a4, t2 + vle32.v v24, (a3) + add a1, a1, t4 + vlse32.v v28, (t3), t1 + sub a2, a2, t4 + vfmul.vv v0, v16, v28 + add a3, a3, t4 + vfmul.vv v8, v16, v24 + sub t3, t3, t4 + vfnmsac.vv v0, v20, v24 + vfmacc.vv v8, v20, v28 + vse32.v v0, (a0) + add a0, a0, t4 + vsse32.v v8, (t0), t1 + sub t0, t0, t4 + bnez a4, 1b + + ret +endfunc + // (a0) = (a1) * (a2) + (a3) [0..a4-1] func ff_vector_fmul_add_rvv, zve32f 1: |