{"id":22787,"url":"https://patchwork.libcamera.org/api/patches/22787/?format=json","web_url":"https://patchwork.libcamera.org/patch/22787/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20250217100203.297894-2-stefan.klug@ideasonboard.com>","date":"2025-02-17T10:01:42","name":"[01/10] libcamera: matrix: Add cast function","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"7d03c546a95c32217aeb458922a4cd4033963870","submitter":{"id":184,"url":"https://patchwork.libcamera.org/api/people/184/?format=json","name":"Stefan Klug","email":"stefan.klug@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/22787/mbox/","series":[{"id":5005,"url":"https://patchwork.libcamera.org/api/series/5005/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5005","date":"2025-02-17T10:01:41","name":"Some rkisp1 awb improvements","version":1,"mbox":"https://patchwork.libcamera.org/series/5005/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/22787/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/22787/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 73177C327D\n\tfor ;\n\tMon, 17 Feb 2025 10:02:15 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 42D9768663;\n\tMon, 17 Feb 2025 11:02:14 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A2B306865D\n\tfor ;\n\tMon, 17 Feb 2025 11:02:10 +0100 (CET)","from ideasonboard.com (unknown\n\t[IPv6:2a00:6020:448c:6c00:b47f:e20a:c4c7:ece1])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 6A2DD842;\n\tMon, 17 Feb 2025 11:00:49 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"TmLzEGyF\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1739786449;\n\tbh=WCk5oVZh9C/d253FiUEnwgsIeMWChDAfaXQvY65px74=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=TmLzEGyFX7ofZ7BiQknRM3Sqok5VFt01EcnOgpJ1OuG669u5ZdbI2VarxcXDqGOZY\n\tH20UNXIXlzvyogmV65bScuQJUB+c5kMVVYdJCyNSC11A37vepz+Ck6bjc0Gj+UFxQq\n\tUBkUHpwhy1jD6B+AlTGDKDKdTADqtPyr/j9tzR48=","From":"Stefan Klug ","To":"libcamera-devel@lists.libcamera.org","Cc":"Stefan Klug ","Subject":"[PATCH 01/10] libcamera: matrix: Add cast function","Date":"Mon, 17 Feb 2025 11:01:42 +0100","Message-ID":"<20250217100203.297894-2-stefan.klug@ideasonboard.com>","X-Mailer":"git-send-email 2.43.0","In-Reply-To":"<20250217100203.297894-1-stefan.klug@ideasonboard.com>","References":"<20250217100203.297894-1-stefan.klug@ideasonboard.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"The libcamera code base uses matrices and vectors of type float and\ndouble. Add a cast function to easily convert between different\nunderlying types.\n\nSigned-off-by: Stefan Klug \n---\n include/libcamera/internal/matrix.h | 11 +++++++++++\n src/libcamera/matrix.cpp | 10 ++++++++++\n 2 files changed, 21 insertions(+)","diff":"diff --git a/include/libcamera/internal/matrix.h b/include/libcamera/internal/matrix.h\nindex a055e6926c94..ca81dcda93c4 100644\n--- a/include/libcamera/internal/matrix.h\n+++ b/include/libcamera/internal/matrix.h\n@@ -90,6 +90,17 @@ public:\n \t\treturn *this;\n \t}\n \n+\ttemplate\n+\tMatrix cast() const\n+\t{\n+\t\tMatrix ret;\n+\t\tfor (unsigned int i = 0; i < Rows; i++)\n+\t\t\tfor (unsigned int j = 0; j < Cols; j++)\n+\t\t\t\tret[i][j] = static_cast((*this)[i][j]);\n+\n+\t\treturn ret;\n+\t}\n+\n private:\n \tstd::array data_;\n };\ndiff --git a/src/libcamera/matrix.cpp b/src/libcamera/matrix.cpp\nindex e7e027225666..91a3f16405a3 100644\n--- a/src/libcamera/matrix.cpp\n+++ b/src/libcamera/matrix.cpp\n@@ -77,6 +77,16 @@ LOG_DEFINE_CATEGORY(Matrix)\n * \\return Row \\a i from the matrix, as a Span\n */\n \n+/**\n+ * \\fn template Matrix Matrix::cast() const\n+ * \\brief Cast the matrix to a different type\n+ *\n+ * This function returns a new matrix with the same size and values but a\n+ * different type.\n+ *\n+ * \\return The new matrix\n+ */\n+\n /**\n * \\fn Matrix::operator[](size_t i)\n * \\copydoc Matrix::operator[](size_t i) const\n","prefixes":["01/10"]}