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{
    "id": 25116,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/25116/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/25116/",
    "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": "",
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    },
    "msgid": "<20251120232019.3590-16-bryan.odonoghue@linaro.org>",
    "date": "2025-11-20T23:20:12",
    "name": "[15/22] libcamera: software_isp: Start the ISP thread in configure",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "f15eebb7c60746935ec55f953c786798ff77e881",
    "submitter": {
        "id": 175,
        "url": "https://patchwork.libcamera.org/api/1.1/people/175/?format=api",
        "name": "Bryan O'Donoghue",
        "email": "bryan.odonoghue@linaro.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/25116/mbox/",
    "series": [
        {
            "id": 5599,
            "url": "https://patchwork.libcamera.org/api/1.1/series/5599/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5599",
            "date": "2025-11-20T23:19:57",
            "name": "GPUISP precursor series",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/5599/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/25116/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/25116/checks/",
    "tags": {},
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        "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "pavel@ucw.cz, Bryan O'Donoghue <bryan.odonoghue@linaro.org>,\n\tRobert Mader <robert.mader@collabora.com>",
        "Subject": "[PATCH 15/22] libcamera: software_isp: Start the ISP thread in\n\tconfigure",
        "Date": "Thu, 20 Nov 2025 23:20:12 +0000",
        "Message-ID": "<20251120232019.3590-16-bryan.odonoghue@linaro.org>",
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        "References": "<20251120232019.3590-1-bryan.odonoghue@linaro.org>",
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        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "EGL is not thread-safe and in fact associates invisible handles with the\nthreadid of the calling context.\n\nAs a result we need to make Deabyer::configure() and Debayer::process() in SoftISP execute on\nthe same thread.\n\nWhen we call Debayer::configure() in the egl class this will setup and egl context\nfor us which is associated with the calling thread context. Hence when\nDebayer::process(); runs it must run in the same thread as\nDebayer::configure() or the hidden Gegl context handles will not point\nto the same place.\n\nMove start thread into configure() as a first step towards this.\n\nCo-developed-by: Robert Mader <robert.mader@collabora.com>\nSigned-off-by: Robert Mader <robert.mader@collabora.com>\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n src/libcamera/software_isp/software_isp.cpp | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp\nindex 928a2520c..afa4eb7a8 100644\n--- a/src/libcamera/software_isp/software_isp.cpp\n+++ b/src/libcamera/software_isp/software_isp.cpp\n@@ -265,6 +265,8 @@ int SoftwareIsp::configure(const StreamConfiguration &inputCfg,\n \tif (ret < 0)\n \t\treturn ret;\n \n+\tispWorkerThread_.start();\n+\n \treturn debayer_->configure(inputCfg, outputCfgs, ccmEnabled_);\n }\n \n@@ -346,7 +348,6 @@ int SoftwareIsp::start()\n \tif (ret)\n \t\treturn ret;\n \n-\tispWorkerThread_.start();\n \treturn 0;\n }\n \n",
    "prefixes": [
        "15/22"
    ]
}