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{
    "id": 27564,
    "url": "https://patchwork.libcamera.org/api/patches/27564/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/27564/",
    "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": "<20260803131435.153927-16-barnabas.pocze@ideasonboard.com>",
    "date": "2026-08-03T13:14:00",
    "name": "[RFC,v3,15/50] ipa: libipa: agc_mean_luminance: constraintClampGain(): Mark `const`",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "0350dbf8ee6419bd2efd7bc852d27e42b38d7dc3",
    "submitter": {
        "id": 216,
        "url": "https://patchwork.libcamera.org/api/people/216/?format=api",
        "name": "Barnabás Pőcze",
        "email": "barnabas.pocze@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/27564/mbox/",
    "series": [
        {
            "id": 6103,
            "url": "https://patchwork.libcamera.org/api/series/6103/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=6103",
            "date": "2026-08-03T13:13:45",
            "name": "ipa: libipa: agc rework",
            "version": 3,
            "mbox": "https://patchwork.libcamera.org/series/6103/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/27564/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/27564/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 9DF32C3308\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon,  3 Aug 2026 13:15:08 +0000 (UTC)",
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        ],
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        "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>",
        "Subject": "[RFC PATCH v3 15/50] ipa: libipa: agc_mean_luminance:\n\tconstraintClampGain(): Mark `const`",
        "Date": "Mon,  3 Aug 2026 15:14:00 +0200",
        "Message-ID": "<20260803131435.153927-16-barnabas.pocze@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.55.0",
        "In-Reply-To": "<20260803131435.153927-1-barnabas.pocze@ideasonboard.com>",
        "References": "<20260803131435.153927-1-barnabas.pocze@ideasonboard.com>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=UTF-8",
        "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 reason not to have this member function as `const`. Change the\nmap lookup to use `at()` just like it is done for `calculateNewEv()`, with\nthe same requirement that validation is the job of the caller.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\nReviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n src/ipa/libipa/agc_mean_luminance.cpp | 4 ++--\n src/ipa/libipa/agc_mean_luminance.h   | 2 +-\n 2 files changed, 3 insertions(+), 3 deletions(-)",
    "diff": "diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp\nindex bf7d164346..3a14d778a3 100644\n--- a/src/ipa/libipa/agc_mean_luminance.cpp\n+++ b/src/ipa/libipa/agc_mean_luminance.cpp\n@@ -538,7 +538,7 @@ double AgcMeanLuminance::estimateInitialGain(const Traits &traits) const\n  */\n double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex,\n \t\t\t\t\t     const Histogram &hist,\n-\t\t\t\t\t     double gain)\n+\t\t\t\t\t     double gain) const\n {\n \tauto applyConstraint = [this, &gain, &hist](const AgcConstraint &constraint) {\n \t\tdouble lux = lux_;\n@@ -568,7 +568,7 @@ double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex,\n \t\t}\n \t};\n \n-\tstd::vector<AgcConstraint> &constraints = constraintModes_[constraintModeIndex];\n+\tconst std::vector<AgcConstraint> &constraints = constraintModes_.at(constraintModeIndex);\n \tstd::for_each(constraints.begin(), constraints.end(), applyConstraint);\n \n \tstd::for_each(additionalConstraints_.begin(), additionalConstraints_.end(), applyConstraint);\ndiff --git a/src/ipa/libipa/agc_mean_luminance.h b/src/ipa/libipa/agc_mean_luminance.h\nindex eb9d6fec2b..9b82d97ab6 100644\n--- a/src/ipa/libipa/agc_mean_luminance.h\n+++ b/src/ipa/libipa/agc_mean_luminance.h\n@@ -105,7 +105,7 @@ private:\n \tdouble estimateInitialGain(const Traits &traits) const;\n \tdouble constraintClampGain(uint32_t constraintModeIndex,\n \t\t\t\t   const Histogram &hist,\n-\t\t\t\t   double gain);\n+\t\t\t\t   double gain) const;\n \tutils::Duration filterExposure(utils::Duration exposureValue);\n \n \tutils::Duration filteredExposure_;\n",
    "prefixes": [
        "RFC",
        "v3",
        "15/50"
    ]
}