From patchwork Mon Nov 18 22:16:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 21969 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id A7D06C32EA for ; Mon, 18 Nov 2024 22:16:51 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 26EDD65905; Mon, 18 Nov 2024 23:16:51 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="b8eLwwEt"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 7DEBF658F6 for ; Mon, 18 Nov 2024 23:16:40 +0100 (CET) Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 86CA08DB for ; Mon, 18 Nov 2024 23:16:23 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1731968183; bh=e5yIhDKeKmWDxXmNZ5GaJ7A3z+6gzmeEHE8dB2zg5R0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=b8eLwwEtWlk6oiA4ESvEi3powk1bR0dryTGqGM9XUKzdXYNu7sA83jLRcIBhCs/Zs 8XzNlDOVJIJrVjOkRLT9GGjUqsqBYalMAGqSbXTIBiGsk8jOCMCYjq9ACbbyHED/27 nTvb+V/gEPZzr8vk4t3MOY6DhItdyINpEds/6+7I= From: Laurent Pinchart To: libcamera-devel@lists.libcamera.org Subject: [PATCH v3 09/17] ipa: libipa: vector: Add element-wise min() and max() functions Date: Tue, 19 Nov 2024 00:16:10 +0200 Message-ID: <20241118221618.13953-10-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241118221618.13953-1-laurent.pinchart@ideasonboard.com> References: <20241118221618.13953-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" Add functions to calculate the element-wise minimum and maximum of two vectors or of a vector and a scalar. This will be used in algorithm implementations. Signed-off-by: Laurent Pinchart Reviewed-by: Milan Zamazal --- src/ipa/libipa/vector.cpp | 28 ++++++++++++++++++++++++++++ src/ipa/libipa/vector.h | 20 ++++++++++++++++++++ 2 files changed, 48 insertions(+) diff --git a/src/ipa/libipa/vector.cpp b/src/ipa/libipa/vector.cpp index 64ffcf5036a4..56c494a7e4da 100644 --- a/src/ipa/libipa/vector.cpp +++ b/src/ipa/libipa/vector.cpp @@ -189,6 +189,34 @@ namespace ipa { * \return This vector */ +/** + * \fn Vector::min(const Vector &other) const + * \brief Calculate the minimum of this vector and \a other element-wise + * \param[in] other The other vector + * \return The element-wise minimum of this vector and \a other + */ + +/** + * \fn Vector::min(T scalar) const + * \brief Calculate the minimum of this vector and \a scalar element-wise + * \param[in] scalar The scalar + * \return The element-wise minimum of this vector and \a scalar + */ + +/** + * \fn Vector::max(const Vector &other) const + * \brief Calculate the maximum of this vector and \a other element-wise + * \param[in] other The other vector + * \return The element-wise maximum of this vector and \a other + */ + +/** + * \fn Vector::max(T scalar) const + * \brief Calculate the maximum of this vector and \a scalar element-wise + * \param[in] scalar The scalar + * \return The element-wise maximum of this vector and \a scalar + */ + /** * \fn Vector::dot(const Vector &other) const * \brief Compute the dot product diff --git a/src/ipa/libipa/vector.h b/src/ipa/libipa/vector.h index 15f511653b60..3fed9570bf62 100644 --- a/src/ipa/libipa/vector.h +++ b/src/ipa/libipa/vector.h @@ -160,6 +160,26 @@ public: return apply(scalar, [](T a, T b) { return a / b; }); } + constexpr Vector min(const Vector &other) const + { + return apply(*this, other, [](T a, T b) { return std::min(a, b); }); + } + + constexpr Vector min(T scalar) const + { + return apply(*this, scalar, [](T a, T b) { return std::min(a, b); }); + } + + constexpr Vector max(const Vector &other) const + { + return apply(*this, other, [](T a, T b) { return std::max(a, b); }); + } + + constexpr Vector max(T scalar) const + { + return apply(*this, scalar, [](T a, T b) -> T { return std::max(a, b); }); + } + constexpr T dot(const Vector &other) const { T ret = 0;