From patchwork Mon May 14 08:02:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Wilson X-Patchwork-Id: 10397399 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6BEC6600D0 for ; Mon, 14 May 2018 08:03:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E9DD1FE82 for ; Mon, 14 May 2018 08:03:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 53A3528A31; Mon, 14 May 2018 08:03:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 13D1D1FE82 for ; Mon, 14 May 2018 08:03:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A73389C27; Mon, 14 May 2018 08:03:05 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B6BF89C27; Mon, 14 May 2018 08:03:04 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 11692950-1500050 for multiple; Mon, 14 May 2018 09:02:54 +0100 Received: by haswell.alporthouse.com (sSMTP sendmail emulation); Mon, 14 May 2018 09:02:55 +0100 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Mon, 14 May 2018 09:02:47 +0100 Message-Id: <20180514080251.11224-2-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180514080251.11224-1-chris@chris-wilson.co.uk> References: <20180514080251.11224-1-chris@chris-wilson.co.uk> X-Originating-IP: 78.156.65.138 X-Country: code=GB country="United Kingdom" ip=78.156.65.138 Subject: [Intel-gfx] [PATCH i-g-t 2/6] lib/audio: Replace sqrt(a*a + b*b) with hypot(a, b) X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: igt-dev@lists.freedesktop.org MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin --- lib/igt_audio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/lib/igt_audio.c b/lib/igt_audio.c index 2321d1c6e..229ce6c69 100644 --- a/lib/igt_audio.c +++ b/lib/igt_audio.c @@ -266,9 +266,7 @@ bool audio_signal_detect(struct audio_signal *signal, int channels, max = 0; for (i = 0; i < frames / 2; i++) { - amplitude[i] = sqrt(data[i] * data[i] + - data[frames - i] * - data[frames - i]); + amplitude[i] = hypot(data[i], data[frames - i]); if (amplitude[i] > max) max = amplitude[i]; }