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| author | Rémi Denis-Courmont <remi@remlab.net> | 2022-09-26 17:52:32 +0300 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2022-09-27 13:19:52 +0200 |
| commit | c3db27ba9552fc3cb764bf9eb717840d981c5779 (patch) | |
| tree | 4d3b90b2d9e43ed0be1ec7afde640bc41ac50f0c /libavutil/riscv | |
| parent | da169a210dbd33d5d34baaf3d188ca5388b1b267 (diff) | |
| download | ffmpeg-c3db27ba9552fc3cb764bf9eb717840d981c5779.tar.gz | |
lavu/floatdsp: RISC-V V vector_fmac_scalar
Diffstat (limited to 'libavutil/riscv')
| -rw-r--r-- | libavutil/riscv/float_dsp_init.c | 3 | ||||
| -rw-r--r-- | libavutil/riscv/float_dsp_rvv.S | 19 |
2 files changed, 22 insertions, 0 deletions
diff --git a/libavutil/riscv/float_dsp_init.c b/libavutil/riscv/float_dsp_init.c index 29114dfb82..9e19413d5d 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -27,6 +27,8 @@ void ff_vector_fmul_rvv(float *dst, const float *src0, const float *src1, int len); +void ff_vector_fmac_scalar_rvv(float *dst, const float *src, float mul, + int len); void ff_vector_fmul_scalar_rvv(float *dst, const float *src, float mul, int len); @@ -42,6 +44,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp) if (flags & AV_CPU_FLAG_RVV_F32) { fdsp->vector_fmul = ff_vector_fmul_rvv; + fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_rvv; fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_rvv; } diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index 710e122444..4c325db9fd 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -38,6 +38,25 @@ func ff_vector_fmul_rvv, zve32f ret endfunc +// (a0) += (a1) * fa0 [0..a2-1] +func ff_vector_fmac_scalar_rvv, zve32f +NOHWF fmv.w.x fa0, a2 +NOHWF mv a2, a3 +1: + vsetvli t0, a2, e32, m1, ta, ma + slli t1, t0, 2 + vle32.v v24, (a1) + sub a2, a2, t0 + vle32.v v16, (a0) + sh2add a1, t0, a1 + vfmacc.vf v16, fa0, v24 + vse32.v v16, (a0) + sh2add a0, t0, a0 + bnez a2, 1b + + ret +endfunc + // (a0) = (a1) * fa0 [0..a2-1] func ff_vector_fmul_scalar_rvv, zve32f NOHWF fmv.w.x fa0, a2 |