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{
    "id": 20881,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/20881/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/20881/",
    "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": "<20240812115009.946036-8-mzamazal@redhat.com>",
    "date": "2024-08-12T11:49:56",
    "name": "[07/16] libcamera: software_isp: Use multiple parameters buffers in IPA",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "ee432376f214a2844cb6a4a2941bf928d013a486",
    "submitter": {
        "id": 177,
        "url": "https://patchwork.libcamera.org/api/1.1/people/177/?format=api",
        "name": "Milan Zamazal",
        "email": "mzamazal@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/20881/mbox/",
    "series": [
        {
            "id": 4511,
            "url": "https://patchwork.libcamera.org/api/1.1/series/4511/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4511",
            "date": "2024-08-12T11:49:49",
            "name": "Software ISP: Share params and stats buffers",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/4511/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/20881/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/20881/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
        "X-Original-To": "parsemail@patchwork.libcamera.org",
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        "X-MC-Unique": "Pr4eGMrwNKWFgBcavFyrcw-1",
        "From": "Milan Zamazal <mzamazal@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>",
        "Subject": "[PATCH 07/16] libcamera: software_isp: Use multiple parameters\n\tbuffers in IPA",
        "Date": "Mon, 12 Aug 2024 13:49:56 +0200",
        "Message-ID": "<20240812115009.946036-8-mzamazal@redhat.com>",
        "In-Reply-To": "<20240812115009.946036-1-mzamazal@redhat.com>",
        "References": "<20240812115009.946036-1-mzamazal@redhat.com>",
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        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
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        "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": "Instead of the single parameters buffer file descriptor, pass the file\ndescriptors of all the parameters buffers to the IPA and let it use them\naccording to the passed buffer id.\n\nThis means:\n\n- The file descriptors of all the buffers must be passed to the IPA.\n\n- The IPA must store mappings of the buffer ids to the corresponding\n  buffers.\n\n- The current buffer id is passed to/from the IPA.\n\nThe parameters buffers are still copied for debayering, this will be\naddressed in the next patch.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n include/libcamera/ipa/soft.mojom            |  2 +-\n src/ipa/simple/soft_simple.cpp              | 29 +++++++++++----------\n src/libcamera/software_isp/software_isp.cpp | 12 ++++++---\n 3 files changed, 25 insertions(+), 18 deletions(-)",
    "diff": "diff --git a/include/libcamera/ipa/soft.mojom b/include/libcamera/ipa/soft.mojom\nindex 1498aedf..86dd988f 100644\n--- a/include/libcamera/ipa/soft.mojom\n+++ b/include/libcamera/ipa/soft.mojom\n@@ -15,7 +15,7 @@ struct IPAConfigInfo {\n interface IPASoftInterface {\n \tinit(libcamera.IPASettings settings,\n \t     libcamera.SharedFD fdStats,\n-\t     libcamera.SharedFD fdParams,\n+\t     array<libcamera.SharedFD> fdParams,\n \t     libcamera.ControlInfoMap sensorCtrlInfoMap)\n \t\t=> (int32 ret);\n \tstart() => (int32 ret);\ndiff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp\nindex 9d5fe923..50f8f194 100644\n--- a/src/ipa/simple/soft_simple.cpp\n+++ b/src/ipa/simple/soft_simple.cpp\n@@ -48,7 +48,7 @@ public:\n \n \tint init(const IPASettings &settings,\n \t\t const SharedFD &fdStats,\n-\t\t const SharedFD &fdParams,\n+\t\t const std::vector<SharedFD> &fdParams,\n \t\t const ControlInfoMap &sensorInfoMap) override;\n \tint configure(const IPAConfigInfo &configInfo) override;\n \n@@ -66,7 +66,7 @@ protected:\n private:\n \tvoid updateExposure(double exposureMSV);\n \n-\tDebayerParams *params_;\n+\tstd::map<unsigned int, DebayerParams *> paramsBuffers_;\n \tSwIspStats *stats_;\n \tstd::unique_ptr<CameraSensorHelper> camHelper_;\n \tControlInfoMap sensorInfoMap_;\n@@ -79,13 +79,13 @@ IPASoftSimple::~IPASoftSimple()\n {\n \tif (stats_)\n \t\tmunmap(stats_, sizeof(SwIspStats));\n-\tif (params_)\n-\t\tmunmap(params_, sizeof(DebayerParams));\n+\tfor (auto &item : paramsBuffers_)\n+\t\tmunmap(item.second, sizeof(DebayerParams));\n }\n \n int IPASoftSimple::init(const IPASettings &settings,\n \t\t\tconst SharedFD &fdStats,\n-\t\t\tconst SharedFD &fdParams,\n+\t\t\tconst std::vector<SharedFD> &fdParams,\n \t\t\tconst ControlInfoMap &sensorInfoMap)\n {\n \tcamHelper_ = CameraSensorHelperFactoryBase::create(settings.sensorModel);\n@@ -122,7 +122,6 @@ int IPASoftSimple::init(const IPASettings &settings,\n \tif (ret)\n \t\treturn ret;\n \n-\tparams_ = nullptr;\n \tstats_ = nullptr;\n \n \tif (!fdStats.isValid()) {\n@@ -130,20 +129,21 @@ int IPASoftSimple::init(const IPASettings &settings,\n \t\treturn -ENODEV;\n \t}\n \n-\tif (!fdParams.isValid()) {\n-\t\tLOG(IPASoft, Error) << \"Invalid Parameters handle\";\n-\t\treturn -ENODEV;\n-\t}\n+\tfor (auto &sharedFd : fdParams) {\n+\t\tif (!sharedFd.isValid()) {\n+\t\t\tLOG(IPASoft, Error) << \"Invalid Parameters handle\";\n+\t\t\treturn -ENODEV;\n+\t\t}\n \n-\t{\n \t\tvoid *mem = mmap(nullptr, sizeof(DebayerParams), PROT_WRITE,\n-\t\t\t\t MAP_SHARED, fdParams.get(), 0);\n+\t\t\t\t MAP_SHARED, sharedFd.get(), 0);\n \t\tif (mem == MAP_FAILED) {\n \t\t\tLOG(IPASoft, Error) << \"Unable to map Parameters\";\n \t\t\treturn -errno;\n \t\t}\n \n-\t\tparams_ = static_cast<DebayerParams *>(mem);\n+\t\tASSERT(sharedFd.get() >= 0);\n+\t\tparamsBuffers_[sharedFd.get()] = static_cast<DebayerParams *>(mem);\n \t}\n \n \t{\n@@ -258,8 +258,9 @@ void IPASoftSimple::prepare(const uint32_t frame,\n \t\t\t    const uint32_t paramsBufferId)\n {\n \tIPAFrameContext &frameContext = context_.frameContexts.get(frame);\n+\tDebayerParams *params = paramsBuffers_.at(paramsBufferId);\n \tfor (auto const &algo : algorithms())\n-\t\talgo->prepare(context_, frame, frameContext, params_);\n+\t\talgo->prepare(context_, frame, frameContext, params);\n \tsetIspParams.emit(paramsBufferId);\n }\n \ndiff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp\nindex d48be2d2..480ecf6e 100644\n--- a/src/libcamera/software_isp/software_isp.cpp\n+++ b/src/libcamera/software_isp/software_isp.cpp\n@@ -13,6 +13,8 @@\n #include <sys/types.h>\n #include <unistd.h>\n \n+#include <libcamera/base/shared_fd.h>\n+\n #include <libcamera/formats.h>\n #include <libcamera/request.h>\n #include <libcamera/stream.h>\n@@ -85,6 +87,9 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor,\n \tstats->statsReady.connect(this, &SoftwareIsp::statsReady);\n \n \tdebayer_ = std::make_unique<DebayerCpu>(std::move(stats));\n+\tstd::vector<SharedFD> fdParams;\n+\tfor (auto &item : sharedParams_)\n+\t\tfdParams.emplace_back(item.second.fd());\n \tdebayer_->inputBufferReady.connect(this, &SoftwareIsp::inputReady);\n \tdebayer_->outputBufferReady.connect(this, &SoftwareIsp::outputReady);\n \tdebayer_->releaseIspParams.connect(this, &SoftwareIsp::releaseIspParams);\n@@ -106,7 +111,7 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor,\n \n \tint ret = ipa_->init(IPASettings{ ipaTuningFile, sensor->model() },\n \t\t\t     debayer_->getStatsFD(),\n-\t\t\t     sharedParams_.begin()->second.fd(),\n+\t\t\t     fdParams,\n \t\t\t     sensor->controls());\n \tif (ret) {\n \t\tLOG(SoftwareIsp, Error) << \"IPA init failed\";\n@@ -380,13 +385,14 @@ void SoftwareIsp::process(uint32_t frame, FrameBuffer *input, FrameBuffer *outpu\n \tconst uint32_t paramsBufferId = availableParams_.front();\n \tavailableParams_.pop();\n \tipa_->prepare(frame, paramsBufferId);\n+\tdebayerParams_ = *sharedParams_.at(paramsBufferId);\n \tdebayer_->invokeMethod(&DebayerCpu::process,\n \t\t\t       ConnectionTypeQueued, frame, paramsBufferId, input, output, debayerParams_);\n }\n \n-void SoftwareIsp::saveIspParams([[maybe_unused]] uint32_t paramsBufferId)\n+void SoftwareIsp::saveIspParams(uint32_t paramsBufferId)\n {\n-\tdebayerParams_ = *sharedParams_.begin()->second;\n+\tdebayerParams_ = *sharedParams_.at(paramsBufferId);\n }\n \n void SoftwareIsp::releaseIspParams(uint32_t paramsBufferId)\n",
    "prefixes": [
        "07/16"
    ]
}