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{
    "id": 19175,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/19175/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/19175/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20231022224159.30298-7-laurent.pinchart@ideasonboard.com>",
    "date": "2023-10-22T22:41:57",
    "name": "[libcamera-devel,v6,19/12] libcamera: camera_sensor: Cache mounting orientation instead of transform",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "c7f61ee77dd91fe44eda62f40ca3e08862981992",
    "submitter": {
        "id": 2,
        "url": "https://patchwork.libcamera.org/api/1.1/people/2/?format=api",
        "name": "Laurent Pinchart",
        "email": "laurent.pinchart@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/19175/mbox/",
    "series": [
        {
            "id": 4053,
            "url": "https://patchwork.libcamera.org/api/1.1/series/4053/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4053",
            "date": "2023-10-19T14:01:21",
            "name": "libcamera: Replace CameraConfiguration::transform",
            "version": 6,
            "mbox": "https://patchwork.libcamera.org/series/4053/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/19175/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/19175/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "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 391F3C32B8\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSun, 22 Oct 2023 22:42:06 +0000 (UTC)",
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        ],
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            "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1698014523;\n\tbh=vTFhs4od3h0Y/PLNg5ahJow5rZArqfKXmk+S/CiZSmA=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:\n\tFrom;\n\tb=ucXVuL5z5xnuSQaDKhLBAl772odByM3+IczXG17HnBMSqfUlldokbgXsHqJKKYNYL\n\tY1UbAJelqc0So3TnyXZbOvfPLKmJxfgY3s75WKJxkT4HYzURLZj+gSI5aHxcXDiws0\n\tfnoeLaDxo4AkmhZKv95i6yYR7ZcMRmu8OvMw8+FZXVtVrMxDWVEfc27HnG7YmF8LAJ\n\tAohK1IbLf5KuRuPrq3Um6teiuDKhOUU+LXjbqHDbE5G49luQeEycqZIF9vuTWim5eu\n\tZIoQLo5JnMum/3mO8KvtvNmJJX9dBjdLVc/fi1uoYiOnuY4Beqz3lyD/etoYa33FP6\n\t/mjkA6nP/hLDA==",
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Mon, 23 Oct 2023 01:41:57 +0300",
        "Message-ID": "<20231022224159.30298-7-laurent.pinchart@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.41.0",
        "In-Reply-To": "<20231019140133.32090-1-jacopo.mondi@ideasonboard.com>",
        "References": "<20231019140133.32090-1-jacopo.mondi@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v6 19/12] libcamera: camera_sensor: Cache\n\tmounting orientation instead of transform",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
        "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>",
        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
        "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>",
        "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>",
        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "From": "Laurent Pinchart via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Laurent Pinchart <laurent.pinchart@ideasonboard.com>",
        "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "The cached rotationTransform_ value is used in computeTransform() only,\nto compute the mounting orientation. Cache the mounting orientation\ninstead, removing the need for the intermediate conversion of the\nrotation to a transform.\n\nSigned-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>\n---\n include/libcamera/internal/camera_sensor.h |  3 ++-\n src/libcamera/camera_sensor.cpp            | 18 ++++++++----------\n 2 files changed, 10 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h\nindex bcdb2d834dc3..60a8b106d175 100644\n--- a/include/libcamera/internal/camera_sensor.h\n+++ b/include/libcamera/internal/camera_sensor.h\n@@ -17,6 +17,7 @@\n #include <libcamera/control_ids.h>\n #include <libcamera/controls.h>\n #include <libcamera/geometry.h>\n+#include <libcamera/orientation.h>\n #include <libcamera/transform.h>\n \n #include <libcamera/ipa/core_ipa_interface.h>\n@@ -114,7 +115,7 @@ private:\n \tRectangle activeArea_;\n \tconst BayerFormat *bayerFormat_;\n \tbool supportFlips_;\n-\tTransform rotationTransform_;\n+\tOrientation mountingOrientation_;\n \n \tControlList properties_;\n \ndiff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex f175f8b56077..d92616722bc3 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -470,12 +470,12 @@ int CameraSensor::initProperties()\n \t\t * rotation for later use in computeTransform().\n \t\t */\n \t\tbool success;\n-\t\trotationTransform_ = transformFromRotation(propertyValue, &success);\n+\t\tmountingOrientation_ = orientationFromRotation(propertyValue, &success);\n \t\tif (!success) {\n \t\t\tLOG(CameraSensor, Warning)\n \t\t\t\t<< \"Invalid rotation of \" << propertyValue\n \t\t\t\t<< \" degrees - ignoring\";\n-\t\t\trotationTransform_ = Transform::Identity;\n+\t\t\tmountingOrientation_ = Orientation::Rotate0;\n \t\t}\n \n \t\tproperties_.set(properties::Rotation, propertyValue);\n@@ -483,7 +483,7 @@ int CameraSensor::initProperties()\n \t\tLOG(CameraSensor, Warning)\n \t\t\t<< \"Rotation control not available, default to 0 degrees\";\n \t\tproperties_.set(properties::Rotation, 0);\n-\t\trotationTransform_ = Transform::Identity;\n+\t\tmountingOrientation_ = Orientation::Rotate0;\n \t}\n \n \tproperties_.set(properties::PixelArraySize, pixelArraySize_);\n@@ -1137,14 +1137,12 @@ void CameraSensor::updateControlInfo()\n  */\n Transform CameraSensor::computeTransform(Orientation *orientation) const\n {\n-\tOrientation mountingOrientation = transformToOrientation(rotationTransform_);\n-\n \t/*\n \t * If we cannot do any flips we cannot change the native camera mounting\n \t * orientation.\n \t */\n \tif (!supportFlips_) {\n-\t\t*orientation = mountingOrientation;\n+\t\t*orientation = mountingOrientation_;\n \t\treturn Transform::Identity;\n \t}\n \n@@ -1153,17 +1151,17 @@ Transform CameraSensor::computeTransform(Orientation *orientation) const\n \t * from the mounting rotation.\n \t *\n \t * As a note:\n-\t * \torientation / mountingOrientation = transform\n-\t * \tmountingOrientation * transform = orientation\n+\t * \torientation / mountingOrientation_ = transform\n+\t * \tmountingOrientation_ * transform = orientation\n \t */\n-\tTransform transform = *orientation / mountingOrientation;\n+\tTransform transform = *orientation / mountingOrientation_;\n \n \t/*\n \t * If transform contains any Transpose we cannot do it, so adjust\n \t * 'orientation' to report the image native orientation and return Identity.\n \t */\n \tif (!!(transform & Transform::Transpose)) {\n-\t\t*orientation = mountingOrientation;\n+\t\t*orientation = mountingOrientation_;\n \t\treturn Transform::Identity;\n \t}\n \n",
    "prefixes": [
        "libcamera-devel",
        "v6",
        "19/12"
    ]
}