Show a patch.

GET /api/1.1/patches/21645/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 21645,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/21645/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/21645/",
    "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": "<20241016170348.715993-2-jacopo.mondi@ideasonboard.com>",
    "date": "2024-10-16T17:03:42",
    "name": "[1/4] libipa: FrameContext: Move init() to FrameContext",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "d26448fb4e1b67ad9423427ed2b9418262565dae",
    "submitter": {
        "id": 143,
        "url": "https://patchwork.libcamera.org/api/1.1/people/143/?format=api",
        "name": "Jacopo Mondi",
        "email": "jacopo.mondi@ideasonboard.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/21645/mbox/",
    "series": [
        {
            "id": 4708,
            "url": "https://patchwork.libcamera.org/api/1.1/series/4708/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4708",
            "date": "2024-10-16T17:03:41",
            "name": "libipa: Initialize FrameContext with ActiveState",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/4708/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/21645/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/21645/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 1D03DC32FA\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 16 Oct 2024 17:04:08 +0000 (UTC)",
            "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 7317365389;\n\tWed, 16 Oct 2024 19:04:03 +0200 (CEST)",
            "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 132506537F\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 16 Oct 2024 19:03:59 +0200 (CEST)",
            "from ideasonboard.com (unknown [5.179.178.254])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 13727E0D;\n\tWed, 16 Oct 2024 19:02:15 +0200 (CEST)"
        ],
        "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"hYKYK936\"; dkim-atps=neutral",
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1729098136;\n\tbh=nvoR9zgb+OWw1hBzlRG1xkn55L/XGOsohzyykG+tyXo=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=hYKYK936PAGmJu8SgTwqRSj6XFZjxpHHDDjMhQyJNcz41BrXE+fMqP+/DfmM6kANQ\n\tSSWCGz6k5kOrRfNrZ2cNrMMOl2sph0wYD/Oj7gbNS8f2sCcWP/rBxGhT6aqPAxV+31\n\tq5noeldeXvqn+x1JQYHGjxGpbwbFY4upw7yMnpoQ=",
        "From": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>,\n\tPaul Elder <paul.elder@ideasonboard.com>",
        "Subject": "[PATCH 1/4] libipa: FrameContext: Move init() to FrameContext",
        "Date": "Wed, 16 Oct 2024 19:03:42 +0200",
        "Message-ID": "<20241016170348.715993-2-jacopo.mondi@ideasonboard.com>",
        "X-Mailer": "git-send-email 2.47.0",
        "In-Reply-To": "<20241016170348.715993-1-jacopo.mondi@ideasonboard.com>",
        "References": "<20241016170348.715993-1-jacopo.mondi@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": "The FCtQueue structure initializes a new FrameContext using its init()\nfunction. In case of request underrun, where a FrameContext is\ninitialized without application's controls being supplied, the\nFrameContext needs to be initialized to default values.\n\nIn order to allow the single IPAs to initialize a FrameContext to\nthe desired default values, move the init() function to the FrameContext\nstructure, which each IPA derives to a per-IPA type.\n\nIn this way each IPA can override the FrameContext::init() function\nand initialize the FrameContext to the desired default values.\n\nSigned-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n src/ipa/libipa/fc_queue.cpp    | 10 ++++++++++\n src/ipa/libipa/fc_queue.h      | 16 ++++++++--------\n src/ipa/rkisp1/ipa_context.cpp |  5 +++++\n src/ipa/rkisp1/ipa_context.h   |  2 ++\n 4 files changed, 25 insertions(+), 8 deletions(-)",
    "diff": "diff --git a/src/ipa/libipa/fc_queue.cpp b/src/ipa/libipa/fc_queue.cpp\nindex 0365e9197748..fa2454fd5706 100644\n--- a/src/ipa/libipa/fc_queue.cpp\n+++ b/src/ipa/libipa/fc_queue.cpp\n@@ -38,6 +38,16 @@ namespace ipa {\n  * \\brief The frame number\n  */\n \n+/**\n+ * \\fn FrameContext::init()\n+ * \\brief Initialize a frame context\n+ * \\param[in] frameNum The frame number to assign to this FrameContext\n+ *\n+ * This function initializes a frame context by assigning it a frame number.\n+ * The single IPA modules are expected to override this function to initialize\n+ * their derived FrameContext implementation to their desired default values.\n+ */\n+\n /**\n  * \\class FCQueue\n  * \\brief A support class for managing FrameContext instances in IPA modules\ndiff --git a/src/ipa/libipa/fc_queue.h b/src/ipa/libipa/fc_queue.h\nindex 24d9e82b727d..b1e8bc1485d4 100644\n--- a/src/ipa/libipa/fc_queue.h\n+++ b/src/ipa/libipa/fc_queue.h\n@@ -22,6 +22,12 @@ template<typename FrameContext>\n class FCQueue;\n \n struct FrameContext {\n+protected:\n+\tvirtual void init(const uint32_t frameNum)\n+\t{\n+\t\tframe = frameNum;\n+\t}\n+\n private:\n \ttemplate<typename T> friend class FCQueue;\n \tuint32_t frame;\n@@ -61,7 +67,7 @@ public:\n \t\t\tLOG(FCQueue, Warning)\n \t\t\t\t<< \"Frame \" << frame << \" already initialised\";\n \t\telse\n-\t\t\tinit(frameContext, frame);\n+\t\t\tframeContext.init(frame);\n \n \t\treturn frameContext;\n \t}\n@@ -98,18 +104,12 @@ public:\n \t\tLOG(FCQueue, Warning)\n \t\t\t<< \"Obtained an uninitialised FrameContext for \" << frame;\n \n-\t\tinit(frameContext, frame);\n+\t\tframeContext.init(frame);\n \n \t\treturn frameContext;\n \t}\n \n private:\n-\tvoid init(FrameContext &frameContext, const uint32_t frame)\n-\t{\n-\t\tframeContext = {};\n-\t\tframeContext.frame = frame;\n-\t}\n-\n \tstd::vector<FrameContext> contexts_;\n };\n \ndiff --git a/src/ipa/rkisp1/ipa_context.cpp b/src/ipa/rkisp1/ipa_context.cpp\nindex 14d0c02a2b32..4e4fe5f4ae96 100644\n--- a/src/ipa/rkisp1/ipa_context.cpp\n+++ b/src/ipa/rkisp1/ipa_context.cpp\n@@ -417,6 +417,11 @@ namespace libcamera::ipa::rkisp1 {\n  * \\brief Analogue gain multiplier\n  */\n \n+void IPAFrameContext::init(const uint32_t frameNum)\n+{\n+\tFrameContext::init(frameNum);\n+}\n+\n /**\n  * \\struct IPAContext\n  * \\brief Global IPA context data shared between all algorithms\ndiff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h\nindex e274d9b01e1c..51e04bc30627 100644\n--- a/src/ipa/rkisp1/ipa_context.h\n+++ b/src/ipa/rkisp1/ipa_context.h\n@@ -177,6 +177,8 @@ struct IPAFrameContext : public FrameContext {\n \tstruct {\n \t\tMatrix<float, 3, 3> ccm;\n \t} ccm;\n+\n+\tvoid init(const uint32_t frame) override;\n };\n \n struct IPAContext {\n",
    "prefixes": [
        "1/4"
    ]
}