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lavu/floatdsp: RISC-V V vector_fmul_window

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Rémi Denis-Courmont
2022-09-26 17:52:37 +03:00
committed by Lynne
parent 9aeb6aca3a
commit b493370662
2 changed files with 36 additions and 0 deletions
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33
libavutil/riscv/float_dsp_rvv.S
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@@ -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: