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{
    "id": 24154,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/24154/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/24154/",
    "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": "<20250818082909.2001635-5-stefan.klug@ideasonboard.com>",
    "date": "2025-08-18T08:28:42",
    "name": "[RFC,4/4] ipa: mali-c55: agc: Do not derive from AgcMeanLuminance",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "8ab3e7b8f35805001683d167e1249f0865a92aec",
    "submitter": {
        "id": 184,
        "url": "https://patchwork.libcamera.org/api/1.1/people/184/?format=api",
        "name": "Stefan Klug",
        "email": "stefan.klug@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/24154/mbox/",
    "series": [
        {
            "id": 5390,
            "url": "https://patchwork.libcamera.org/api/1.1/series/5390/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5390",
            "date": "2025-08-18T08:28:38",
            "name": "libipa: agc_mean_luminance: Use composition instead of",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/5390/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/24154/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/24154/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 DED6CC3295\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon, 18 Aug 2025 08:30:08 +0000 (UTC)",
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        ],
        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"QVdZDGGm\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1755505749;\n\tbh=BrCOLSeNP8zYXYeemrRSw8LXXcpbdbJR8wtijEON/aY=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=QVdZDGGmvdc5xtmYeRWkfCkui6cZ5P5GgtKYn0/axbVvR+vxtpIuHaIKfj5Y1uMJR\n\tATqrfUqTTapmeyZWAe387g3B2Hkm85oOYSW5ekgEzT8NzUIFUB1kfyDVLxBkqwWHaI\n\t0/+0/r4V2rRRckX3iooFSK7+x79hG9rlgUbmMI6M=",
        "From": "Stefan Klug <stefan.klug@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Stefan Klug <stefan.klug@ideasonboard.com>",
        "Subject": "[RFC PATCH 4/4] ipa: mali-c55: agc: Do not derive from\n\tAgcMeanLuminance",
        "Date": "Mon, 18 Aug 2025 10:28:42 +0200",
        "Message-ID": "<20250818082909.2001635-5-stefan.klug@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.48.1",
        "In-Reply-To": "<20250818082909.2001635-1-stefan.klug@ideasonboard.com>",
        "References": "<20250818082909.2001635-1-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": "<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>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "There is no need to derive from AgcMeanLuminance anymore. Use\ncomposition for easier understanding.\n\nSigned-off-by: Stefan Klug <stefan.klug@ideasonboard.com>\n---\n src/ipa/mali-c55/algorithms/agc.cpp | 21 ++++++++++-----------\n src/ipa/mali-c55/algorithms/agc.h   |  3 ++-\n 2 files changed, 12 insertions(+), 12 deletions(-)",
    "diff": "diff --git a/src/ipa/mali-c55/algorithms/agc.cpp b/src/ipa/mali-c55/algorithms/agc.cpp\nindex 4bfb4aaeedf0..eda111cd8640 100644\n--- a/src/ipa/mali-c55/algorithms/agc.cpp\n+++ b/src/ipa/mali-c55/algorithms/agc.cpp\n@@ -129,13 +129,12 @@ void AgcStatistics::parseStatistics(const mali_c55_stats_buffer *stats)\n }\n \n Agc::Agc()\n-\t: AgcMeanLuminance()\n {\n }\n \n int Agc::init(IPAContext &context, const YamlObject &tuningData)\n {\n-\tint ret = parseTuningData(tuningData);\n+\tint ret = agc_.parseTuningData(tuningData);\n \tif (ret)\n \t\treturn ret;\n \n@@ -145,7 +144,7 @@ int Agc::init(IPAContext &context, const YamlObject &tuningData)\n \t\tstatic_cast<float>(kMaxDigitalGain),\n \t\tstatic_cast<float>(kMinDigitalGain)\n \t);\n-\tcontext.ctrlMap.merge(controls());\n+\tcontext.ctrlMap.merge(agc_.controls());\n \n \treturn 0;\n }\n@@ -168,16 +167,16 @@ int Agc::configure(IPAContext &context,\n \tcontext.activeState.agc.manual.sensorGain = context.configuration.agc.minAnalogueGain;\n \tcontext.activeState.agc.manual.exposure = context.configuration.agc.defaultExposure;\n \tcontext.activeState.agc.manual.ispGain = kMinDigitalGain;\n-\tcontext.activeState.agc.constraintMode = constraintModes().begin()->first;\n-\tcontext.activeState.agc.exposureMode = exposureModeHelpers().begin()->first;\n+\tcontext.activeState.agc.constraintMode = agc_.constraintModes().begin()->first;\n+\tcontext.activeState.agc.exposureMode = agc_.exposureModeHelpers().begin()->first;\n \n \t/* \\todo Run this again when FrameDurationLimits is passed in */\n-\tsetLimits(context.configuration.agc.minShutterSpeed,\n+\tagc_.setLimits(context.configuration.agc.minShutterSpeed,\n \t\t  context.configuration.agc.maxShutterSpeed,\n \t\t  context.configuration.agc.minAnalogueGain,\n \t\t  context.configuration.agc.maxAnalogueGain);\n \n-\tresetFrameCount();\n+\tagc_.resetFrameCount();\n \n \treturn 0;\n }\n@@ -385,10 +384,10 @@ void Agc::process(IPAContext &context,\n \tutils::Duration shutterTime;\n \tdouble aGain, dGain;\n \tstd::tie(shutterTime, aGain, dGain) =\n-\t\tcalculateNewEv(std::bind(&Agc::estimateLuminance, this, _1),\n-\t\t\t       activeState.agc.constraintMode,\n-\t\t\t       activeState.agc.exposureMode, statistics_.yHist,\n-\t\t\t       effectiveExposureValue);\n+\t\tagc_.calculateNewEv(std::bind(&Agc::estimateLuminance, this, _1),\n+\t\t\t\t    activeState.agc.constraintMode,\n+\t\t\t\t    activeState.agc.exposureMode, statistics_.yHist,\n+\t\t\t\t    effectiveExposureValue);\n \n \tdGain = std::clamp(dGain, kMinDigitalGain, kMaxDigitalGain);\n \ndiff --git a/src/ipa/mali-c55/algorithms/agc.h b/src/ipa/mali-c55/algorithms/agc.h\nindex 698de57e1ba8..06c26fd88209 100644\n--- a/src/ipa/mali-c55/algorithms/agc.h\n+++ b/src/ipa/mali-c55/algorithms/agc.h\n@@ -43,7 +43,7 @@ private:\n \tunsigned int bIndex_;\n };\n \n-class Agc : public Algorithm, public AgcMeanLuminance\n+class Agc : public Algorithm\n {\n public:\n \tAgc();\n@@ -74,6 +74,7 @@ private:\n \t\t\t\t      enum mali_c55_param_block_type type);\n \n \tAgcStatistics statistics_;\n+\tAgcMeanLuminance agc_;\n };\n \n } /* namespace ipa::mali_c55::algorithms */\n",
    "prefixes": [
        "RFC",
        "4/4"
    ]
}