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{
    "id": 12564,
    "url": "https://patchwork.libcamera.org/api/patches/12564/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/12564/",
    "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": "<20210611084228.1830629-2-hiroh@chromium.org>",
    "date": "2021-06-11T08:42:25",
    "name": "[libcamera-devel,RFC,1/4] libcamera: camera_sensor: Enable to set a test pattern mode",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "ab7b4781e4600516517d4deb6f36d0ea49590db8",
    "submitter": {
        "id": 63,
        "url": "https://patchwork.libcamera.org/api/people/63/?format=api",
        "name": "Hirokazu Honda",
        "email": "hiroh@chromium.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/12564/mbox/",
    "series": [
        {
            "id": 2121,
            "url": "https://patchwork.libcamera.org/api/series/2121/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=2121",
            "date": "2021-06-11T08:42:24",
            "name": "Support sensor test pattern mode in Android HAL",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/2121/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/12564/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/12564/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "From": "Hirokazu Honda <hiroh@chromium.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Fri, 11 Jun 2021 17:42:25 +0900",
        "Message-Id": "<20210611084228.1830629-2-hiroh@chromium.org>",
        "X-Mailer": "git-send-email 2.32.0.272.g935e593368-goog",
        "In-Reply-To": "<20210611084228.1830629-1-hiroh@chromium.org>",
        "References": "<20210611084228.1830629-1-hiroh@chromium.org>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [RFC PATCH 1/4] libcamera: camera_sensor: Enable\n\tto set a test pattern mode",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "Provides a function to set the camera sensor a test pattern mode.\n\nSigned-off-by: Hirokazu Honda <hiroh@chromium.org>\n---\n include/libcamera/internal/camera_sensor.h |  7 ++--\n src/libcamera/camera_sensor.cpp            | 40 ++++++++++++++++++++--\n 2 files changed, 41 insertions(+), 6 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h\nindex e133ebf4..834d3246 100644\n--- a/include/libcamera/internal/camera_sensor.h\n+++ b/include/libcamera/internal/camera_sensor.h\n@@ -39,10 +39,8 @@ public:\n \tconst std::vector<unsigned int> &mbusCodes() const { return mbusCodes_; }\n \tconst std::vector<Size> &sizes() const { return sizes_; }\n \tSize resolution() const;\n-\tconst std::vector<int32_t> &testPatternModes() const\n-\t{\n-\t\treturn testPatternModes_;\n-\t}\n+\tstd::vector<int32_t> testPatternModes() const;\n+\tint setTestPatternMode(uint8_t testPatternMode);\n \n \tV4L2SubdeviceFormat getFormat(const std::vector<unsigned int> &mbusCodes,\n \t\t\t\t      const Size &size) const;\n@@ -84,6 +82,7 @@ private:\n \tstd::vector<unsigned int> mbusCodes_;\n \tstd::vector<Size> sizes_;\n \tstd::vector<int32_t> testPatternModes_;\n+\tstd::map<int32_t, int32_t> testPatternModeToIndex_;\n \n \tSize pixelArraySize_;\n \tRectangle activeArea_;\ndiff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex 3e135353..d2f033a5 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -329,7 +329,7 @@ void CameraSensor::initTestPatternModes(\n \t\t\tcontinue;\n \t\t}\n \n-\t\ttestPatternModes_.push_back(it->second);\n+\t\ttestPatternModeToIndex_[it->second] = index;\n \t}\n }\n \n@@ -496,12 +496,48 @@ Size CameraSensor::resolution() const\n }\n \n /**\n- * \\fn CameraSensor::testPatternModes()\n  * \\brief Retrieve all the supported test pattern modes of the camera sensor\n  * The test pattern mode values correspond to the controls::TestPattern control.\n  *\n  * \\return The list of test pattern modes\n  */\n+std::vector<int32_t> CameraSensor::testPatternModes() const\n+{\n+\treturn utils::map_keys(testPatternModeToIndex_);\n+}\n+\n+/**\n+ * \\brief Set the camera sensor a specified controls::TestPatternMode\n+ *\n+ * \\return 0 on success or a negative error code otherwise\n+ */\n+int CameraSensor::setTestPatternMode(uint8_t testPatternMode)\n+{\n+\tauto it = testPatternModeToIndex_.find(testPatternMode);\n+\tif (it == testPatternModeToIndex_.end()) {\n+\t\tLOG(CameraSensor, Error) << \"Unsupported test pattern mode: \"\n+\t\t\t\t\t << testPatternMode;\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tconst uint8_t index = it->second;\n+\n+\tControlList ctrls = getControls({ V4L2_CID_TEST_PATTERN });\n+\tif (ctrls.empty()) {\n+\t\tLOG(CameraSensor, Error)\n+\t\t\t<< \"Failed to retrieve test pattern control\";\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tControlValue value = ctrls.get(V4L2_CID_TEST_PATTERN);\n+\tif (value.get<int32_t>() == index)\n+\t\treturn 0;\n+\n+\tvalue.set<int32_t>(index);\n+\tctrls.set(V4L2_CID_TEST_PATTERN, value);\n+\n+\treturn setControls(&ctrls);\n+}\n \n /**\n  * \\brief Retrieve the best sensor format for a desired output\n",
    "prefixes": [
        "libcamera-devel",
        "RFC",
        "1/4"
    ]
}