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[79.124.17.100]) by mx.google.com with ESMTP id gb23-20020a170907961700b00782da4ff18dsi61073ejc.668.2022.09.26.07.55.01; Mon, 26 Sep 2022 07:55:01 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 0B88068BBB5; Mon, 26 Sep 2022 17:53:11 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 468EA68BA9D for ; Mon, 26 Sep 2022 17:52:57 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 4093EC00BE for ; Mon, 26 Sep 2022 17:52:54 +0300 (EEST) From: remi@remlab.net To: ffmpeg-devel@ffmpeg.org Date: Mon, 26 Sep 2022 17:52:38 +0300 Message-Id: <20220926145251.56351-18-remi@remlab.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <5862173.lOV4Wx5bFT@basile.remlab.net> References: <5862173.lOV4Wx5bFT@basile.remlab.net> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 18/31] lavu/floatdsp: RISC-V V scalarproduct_float X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: iFGSBG6WiNZB From: Rémi Denis-Courmont --- libavutil/riscv/float_dsp_init.c | 2 ++ libavutil/riscv/float_dsp_rvv.S | 20 ++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/libavutil/riscv/float_dsp_init.c b/libavutil/riscv/float_dsp_init.c index 44a505308d..e61f887862 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -38,6 +38,7 @@ void ff_vector_fmul_add_rvv(float *dst, const float *src0, const float *src1, void ff_vector_fmul_reverse_rvv(float *dst, const float *src0, const float *src1, int len); void ff_butterflies_float_rvv(float *v1, float *v2, int len); +float ff_scalarproduct_float_rvv(const float *v1, const float *v2, int len); void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1, int len); @@ -59,6 +60,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp) fdsp->vector_fmul_add = ff_vector_fmul_add_rvv; fdsp->vector_fmul_reverse = ff_vector_fmul_reverse_rvv; fdsp->butterflies_float = ff_butterflies_float_rvv; + fdsp->scalarproduct_float = ff_scalarproduct_float_rvv; } if (flags & AV_CPU_FLAG_RVV_F64) { diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index ce530f6108..ab2e0c42d7 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -165,6 +165,26 @@ func ff_butterflies_float_rvv, zve32f ret endfunc +// a0 = (a0).(a1) [0..a2-1] +func ff_scalarproduct_float_rvv, zve32f + vsetvli zero, zero, e32, m1, ta, ma + vmv.s.x v8, zero +1: + vsetvli t0, a2, e32, m1, ta, ma + vle32.v v16, (a0) + sub a2, a2, t0 + vle32.v v24, (a1) + sh2add a0, t0, a0 + vfmul.vv v16, v16, v24 + sh2add a1, t0, a1 + vfredusum.vs v8, v16, v8 + bnez a2, 1b + + vfmv.f.s fa0, v8 +NOHWF fmv.x.w a0, fa0 + ret +endfunc + // (a0) = (a1) * (a2) [0..a3-1] func ff_vector_dmul_rvv, zve64d 1: