From patchwork Mon Sep 12 15:53:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?R=C3=A9mi_Denis-Courmont?= X-Patchwork-Id: 37874 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:3b1c:b0:96:9ee8:5cfd with SMTP id c28csp164316pzh; Mon, 12 Sep 2022 08:56:01 -0700 (PDT) X-Google-Smtp-Source: AA6agR7wQFt0xTzTacUgwB12XgpZbynLg8xyuMI7speq3ivuIG/9XmxuTka6IHWfqJXCsD5xuvoF X-Received: by 2002:aa7:cb92:0:b0:443:98d6:20da with SMTP id r18-20020aa7cb92000000b0044398d620damr22482928edt.399.1662998161729; Mon, 12 Sep 2022 08:56:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1662998161; cv=none; d=google.com; s=arc-20160816; b=xDqTcKzYaNWdJU7aNDSm/ZiQRTvj/e9vDagqeF115KNBbr+O64Xh+C/Grgy0gSUxBT eCSyWxBE7N9lTiSx+CZIMT32NC6VSPRP2UHHGzkRS3vn080vvVGny2dm29opuMT5vtsr jNqe68Z5TPb39woChWKW+GTeuinsQ5fxCSnuHB5SXqWEZA9VycVIHJr9j6az19a4g9pi RX1zaF+z7Sdu/5qwrXY4TmQu2p6ZwDkhhZRLiSnQQ6lYliuVceQ3BBxHFBYXLZ9+F8/K tgRqoU24gKtDJ6uDyKPK/jDia1OPXk3J5yYdjyM/v6NWppr//pBPwoZivjUKPoh9/IMT KcZA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:reply-to:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:subject:mime-version:references:in-reply-to:message-id :date:to:from:delivered-to; bh=62Y15UErQORzBNghFGU9yq3aYcPCj4vGeIyDliueBGs=; b=h2rrSRwQBH59OnMr1N/SDA7uwbCmCYlxpFEEwMIBA+cRRBw+bVYV9QoGfcXBsNRyyi TnbePiZMbqIJJMiRXztnKZC9hNCwWeD+JdRm1y0gVCT3qH/2fVgIHFje0aIiS0Ow6fRS IGLpFJBTfSokB87w58QmTn1ppbmDFSaCh+S7M1g7TPiBWb8r3kVFfu6uasvbTjGtpkoe 1fyCYFpepZuSfc6Wnbyxo5tWgrwJW7Xuyf8ilWnh6U/krlEUNZX582c1R3trUBB672m2 s6TfLIXAFzIT+MRuxPxGC7LULpucxBW5qmY/po/bNiVihkKY1mq6p9UCZw9Sj+sScyJU aRww== ARC-Authentication-Results: i=1; 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 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id xg12-20020a170907320c00b0077087c45329si7476701ejb.968.2022.09.12.08.56.01; Mon, 12 Sep 2022 08:56:01 -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 8993F68BBAA; Mon, 12 Sep 2022 18:53:58 +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 5C50268BB5C for ; Mon, 12 Sep 2022 18:53:40 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 6BE9DC00BA for ; Mon, 12 Sep 2022 18:53:36 +0300 (EEST) From: remi@remlab.net To: ffmpeg-devel@ffmpeg.org Date: Mon, 12 Sep 2022 18:53:29 +0300 Message-Id: <20220912155333.59843-14-remi@remlab.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <2652141.mvXUDI8C0e@basile.remlab.net> References: <2652141.mvXUDI8C0e@basile.remlab.net> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 14/18] lavu/riscv: float vector sum-and-difference with RVV 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: zncueL9gEkPn From: Rémi Denis-Courmont --- libavutil/riscv/float_dsp_init.c | 2 ++ libavutil/riscv/float_dsp_rvv.S | 18 ++++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/libavutil/riscv/float_dsp_init.c b/libavutil/riscv/float_dsp_init.c index 9bc1976d04..c2b72c3b25 100644 --- a/libavutil/riscv/float_dsp_init.c +++ b/libavutil/riscv/float_dsp_init.c @@ -31,6 +31,7 @@ void ff_vector_fmul_scalar_rvv(float *dst, const float *src, float mul, int len); void ff_vector_fmul_add_rvv(float *dst, const float *src0, const float *src1, const float *src2, int len); +void ff_butterflies_float_rvv(float *v1, float *v2, int len); void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1, int len); @@ -49,6 +50,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp) fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_rvv; fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_rvv; fdsp->vector_fmul_add = ff_vector_fmul_add_rvv; + fdsp->butterflies_float = ff_butterflies_float_rvv; if (flags & AV_CPU_FLAG_ZVE64D) { fdsp->vector_dmul = ff_vector_dmul_rvv; diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S index efbf12179f..1c3b08b94f 100644 --- a/libavutil/riscv/float_dsp_rvv.S +++ b/libavutil/riscv/float_dsp_rvv.S @@ -92,6 +92,24 @@ func ff_vector_fmul_add_rvv, zve32f ret endfunc +// (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1] +func ff_butterflies_float_rvv, zve32f +1: vsetvli t0, a2, e32, m8, ta, ma + slli t1, t0, 2 + vle32.v v16, (a0) + vle32.v v24, (a1) + vfadd.vv v0, v16, v24 + vfsub.vv v8, v16, v24 + sub a2, a2, t0 + vse32.v v0, (a0) + add a0, a0, t1 + vse32.v v8, (a1) + add a1, a1, t1 + bnez a2, 1b + + ret +endfunc + // (a0) = (a1) * (a2) [0..a3-1] func ff_vector_dmul_rvv, zve64d 1: vsetvli t0, a3, e64, m8, ta, ma