vector_fmul_add_fixed_c: 2.7 vector_fmul_add_fixed_rvv_i64: 0.7 --- libavutil/riscv/fixed_dsp_init.c | 6 +++++- libavutil/riscv/fixed_dsp_rvv.S | 22 ++++++++++++++++++++++ 2 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/libavutil/riscv/fixed_dsp_init.c b/libavutil/riscv/fixed_dsp_init.c index 409b6d7b55..42e2e69756 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_add_fixed_rvv(int *dst, const int *src0, const int *src1, + const int *src2, int len); int ff_scalarproduct_fixed_rvv(const int *v1, const int *v2, int len); void ff_butterflies_fixed_rvv(int *v1, int *v2, int len); @@ -34,8 +36,10 @@ 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)) { - if (flags & AV_CPU_FLAG_RVV_I64) + if (flags & AV_CPU_FLAG_RVV_I64) { + fdsp->vector_fmul_add = ff_vector_fmul_add_fixed_rvv; fdsp->scalarproduct_fixed = ff_scalarproduct_fixed_rvv; + } fdsp->butterflies_fixed = ff_butterflies_fixed_rvv; } #endif diff --git a/libavutil/riscv/fixed_dsp_rvv.S b/libavutil/riscv/fixed_dsp_rvv.S index 83cad4bde3..ddff0636e5 100644 --- a/libavutil/riscv/fixed_dsp_rvv.S +++ b/libavutil/riscv/fixed_dsp_rvv.S @@ -20,6 +20,28 @@ #include "asm.S" +func ff_vector_fmul_add_fixed_rvv, zve64x + li t1, 1 << 30 +1: + vsetvli t0, a4, e32, m4, ta, ma + vle32.v v16, (a1) + sub a4, a4, t0 + vle32.v v20, (a2) + sh2add a1, t0, a1 + vwmul.vv v24, v16, v20 + vle32.v v12, (a3) + sh2add a2, t0, a2 + vwadd.wx v24, v24, t1 + vnsra.wi v8, v24, 31 + sh2add a3, t0, a3 + vadd.vv v8, v12, v8 + vse32.v v8, (a0) + sh2add a0, t0, a0 + bnez a4, 1b + + ret +endfunc + func ff_scalarproduct_fixed_rvv, zve64x li t1, 1 << 30 vsetvli t0, zero, e64, m8, ta, ma -- 2.42.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".