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{
    "id": 11873,
    "url": "https://patchwork.libcamera.org/api/patches/11873/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/11873/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/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": "<20210408133634.16815-4-david.plowman@raspberrypi.com>",
    "date": "2021-04-08T13:36:34",
    "name": "[libcamera-devel,v2,3/3] ipa: raspberrypi: Update sensor's RED/BLUE balance controls when present",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "b7d37a098e57505cde26f855d946747ed1a6f415",
    "submitter": {
        "id": 42,
        "url": "https://patchwork.libcamera.org/api/people/42/?format=api",
        "name": "David Plowman",
        "email": "david.plowman@raspberrypi.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/11873/mbox/",
    "series": [
        {
            "id": 1905,
            "url": "https://patchwork.libcamera.org/api/series/1905/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=1905",
            "date": "2021-04-08T13:36:31",
            "name": "Raspberry Pi: handle sensors more flexibly",
            "version": 2,
            "mbox": "https://patchwork.libcamera.org/series/1905/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/11873/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/11873/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
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        "From": "David Plowman <david.plowman@raspberrypi.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Thu,  8 Apr 2021 14:36:34 +0100",
        "Message-Id": "<20210408133634.16815-4-david.plowman@raspberrypi.com>",
        "X-Mailer": "git-send-email 2.20.1",
        "In-Reply-To": "<20210408133634.16815-1-david.plowman@raspberrypi.com>",
        "References": "<20210408133634.16815-1-david.plowman@raspberrypi.com>",
        "MIME-Version": "1.0",
        "Subject": "[libcamera-devel] [PATCH v2 3/3] ipa: raspberrypi: Update sensor's\n\tRED/BLUE balance controls when present",
        "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>",
        "Content-Type": "text/plain; charset=\"us-ascii\"",
        "Content-Transfer-Encoding": "7bit",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "If the sensor exposes V4L2_CID_RED_BALANCE and V4L2_CID_BLUE_BALANCE\ncontrols, assume it wants to be told the colour gains.\n\nWe want these to be applied as soon as possible so we add a new\nsetSensorControls signal to the IPA which passes these back to the\npipeline handler without using the DelayedControls mechanism.\n\nSigned-off-by: David Plowman <david.plowman@raspberrypi.com>\n---\n include/libcamera/ipa/raspberrypi.mojom            |  1 +\n src/ipa/raspberrypi/raspberrypi.cpp                | 13 +++++++++++++\n src/libcamera/pipeline/raspberrypi/raspberrypi.cpp | 10 ++++++++++\n 3 files changed, 24 insertions(+)",
    "diff": "diff --git a/include/libcamera/ipa/raspberrypi.mojom b/include/libcamera/ipa/raspberrypi.mojom\nindex f38c2261..ebaf0a04 100644\n--- a/include/libcamera/ipa/raspberrypi.mojom\n+++ b/include/libcamera/ipa/raspberrypi.mojom\n@@ -117,6 +117,7 @@ interface IPARPiEventInterface {\n \tstatsMetadataComplete(uint32 bufferId, ControlList controls);\n \trunIsp(uint32 bufferId);\n \tembeddedComplete(uint32 bufferId);\n+\tsetSensorControls(ControlList controls);\n \tsetIspControls(ControlList controls);\n \tsetDelayedControls(ControlList controls);\n };\ndiff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp\nindex dad6395f..f95896d2 100644\n--- a/src/ipa/raspberrypi/raspberrypi.cpp\n+++ b/src/ipa/raspberrypi/raspberrypi.cpp\n@@ -1036,6 +1036,19 @@ void IPARPi::processStats(unsigned int bufferId)\n \n \t\tsetDelayedControls.emit(ctrls);\n \t}\n+\n+\tstruct AwbStatus awbStatus;\n+\tif (rpiMetadata_.Get(\"awb.status\", awbStatus) == 0 &&\n+\t    sensorCtrls_.find(V4L2_CID_RED_BALANCE) != sensorCtrls_.end() &&\n+\t    sensorCtrls_.find(V4L2_CID_BLUE_BALANCE) != sensorCtrls_.end()) {\n+\t\tControlList ctrls(sensorCtrls_);\n+\t\tctrls.set(V4L2_CID_RED_BALANCE,\n+\t\t\t  static_cast<int32_t>(helper_->ColourGainCode(awbStatus.gain_r)));\n+\t\tctrls.set(V4L2_CID_BLUE_BALANCE,\n+\t\t\t  static_cast<int32_t>(helper_->ColourGainCode(awbStatus.gain_b)));\n+\n+\t\tsetSensorControls.emit(ctrls);\n+\t}\n }\n \n void IPARPi::applyAWB(const struct AwbStatus *awbStatus, ControlList &ctrls)\ndiff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex f22e286e..8dae4912 100644\n--- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n+++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n@@ -152,6 +152,7 @@ public:\n \tvoid statsMetadataComplete(uint32_t bufferId, const ControlList &controls);\n \tvoid runIsp(uint32_t bufferId);\n \tvoid embeddedComplete(uint32_t bufferId);\n+\tvoid setSensorControls(const ControlList &controls);\n \tvoid setIspControls(const ControlList &controls);\n \tvoid setDelayedControls(const ControlList &controls);\n \n@@ -1219,6 +1220,7 @@ int RPiCameraData::loadIPA(ipa::RPi::SensorConfig *sensorConfig)\n \tipa_->statsMetadataComplete.connect(this, &RPiCameraData::statsMetadataComplete);\n \tipa_->runIsp.connect(this, &RPiCameraData::runIsp);\n \tipa_->embeddedComplete.connect(this, &RPiCameraData::embeddedComplete);\n+\tipa_->setSensorControls.connect(this, &RPiCameraData::setSensorControls);\n \tipa_->setIspControls.connect(this, &RPiCameraData::setIspControls);\n \tipa_->setDelayedControls.connect(this, &RPiCameraData::setDelayedControls);\n \n@@ -1361,6 +1363,14 @@ void RPiCameraData::embeddedComplete(uint32_t bufferId)\n \thandleState();\n }\n \n+void RPiCameraData::setSensorControls(const ControlList &controls)\n+{\n+\tControlList ctrls = controls;\n+\n+\tunicam_[Unicam::Image].dev()->setControls(&ctrls);\n+\thandleState();\n+}\n+\n void RPiCameraData::setIspControls(const ControlList &controls)\n {\n \tControlList ctrls = controls;\n",
    "prefixes": [
        "libcamera-devel",
        "v2",
        "3/3"
    ]
}