diff options
| author | Rémi Denis-Courmont <remi@remlab.net> | 2023-10-04 18:53:03 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2023-10-09 19:52:28 +0300 |
| commit | 10eb3b9c9f9e4175d63e6e1e8418b73eb49601f4 (patch) | |
| tree | 7e8f2cd9ad3712b809a7bad0a2cf49a31a905dab /libavutil | |
| parent | da7a77fb0a6b1397f0a226ef754ff89cd2cdee35 (diff) | |
lavu/fixed_dsp: R-V V vector_fmul
vector_fmul_fixed_c: 4.0
vector_fmul_fixed_rvv_i64: 0.5
Diffstat (limited to 'libavutil')
| -rw-r--r-- | libavutil/riscv/fixed_dsp_init.c | 3 | ||||
| -rw-r--r-- | libavutil/riscv/fixed_dsp_rvv.S | 17 |
2 files changed, 20 insertions, 0 deletions
diff --git a/libavutil/riscv/fixed_dsp_init.c b/libavutil/riscv/fixed_dsp_init.c index 470b35fb63..02883b31d4 100644 --- a/libavutil/riscv/fixed_dsp_init.c +++ b/libavutil/riscv/fixed_dsp_init.c @@ -25,6 +25,8 @@ #include "libavutil/cpu.h" #include "libavutil/fixed_dsp.h" +void ff_vector_fmul_fixed_rvv(int *dst, const int *src0, const int *src1, + int len); void ff_vector_fmul_reverse_fixed_rvv(int *dst, const int *src0, const int *src1, int len); void ff_vector_fmul_add_fixed_rvv(int *dst, const int *src0, const int *src1, @@ -38,6 +40,7 @@ av_cold void ff_fixed_dsp_init_riscv(AVFixedDSPContext *fdsp) int flags = av_get_cpu_flags(); if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) { + fdsp->vector_fmul = ff_vector_fmul_fixed_rvv; fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_fixed_rvv; fdsp->vector_fmul_add = ff_vector_fmul_add_fixed_rvv; diff --git a/libavutil/riscv/fixed_dsp_rvv.S b/libavutil/riscv/fixed_dsp_rvv.S index 8a5d1853c5..d5d538239f 100644 --- a/libavutil/riscv/fixed_dsp_rvv.S +++ b/libavutil/riscv/fixed_dsp_rvv.S @@ -20,6 +20,23 @@ #include "asm.S" +func ff_vector_fmul_fixed_rvv, zve32x + csrwi vxrm, 0 +1: + vsetvli t0, a3, e32, m4, ta, ma + vle32.v v16, (a1) + sub a3, a3, t0 + vle32.v v24, (a2) + sh2add a1, t0, a1 + vsmul.vv v8, v16, v24 + sh2add a2, t0, a2 + vse32.v v8, (a0) + sh2add a0, t0, a0 + bnez a3, 1b + + ret +endfunc + func ff_vector_fmul_reverse_fixed_rvv, zve32x csrwi vxrm, 0 vsetvli t0, zero, e16, m4, ta, ma |