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{
    "id": 20877,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/20877/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/20877/",
    "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": "<20240812115009.946036-4-mzamazal@redhat.com>",
    "date": "2024-08-12T11:49:52",
    "name": "[03/16] libcamera: software_isp: Separate allocation of the parameters buffer",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "d1a09b00ba77dc5cf5d4df38d274d7ee8628478f",
    "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/20877/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/20877/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/20877/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": "AKJ3hmxbOse8QyuKb_ExaQ-1",
        "From": "Milan Zamazal <mzamazal@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "Milan Zamazal <mzamazal@redhat.com>",
        "Subject": "[PATCH 03/16] libcamera: software_isp: Separate allocation of the\n\tparameters buffer",
        "Date": "Mon, 12 Aug 2024 13:49:52 +0200",
        "Message-ID": "<20240812115009.946036-4-mzamazal@redhat.com>",
        "In-Reply-To": "<20240812115009.946036-1-mzamazal@redhat.com>",
        "References": "<20240812115009.946036-1-mzamazal@redhat.com>",
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        "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 will be some additions to that code in followup patches and let's\nnot blow the code in SoftwareIsp constructor even more.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n .../internal/software_isp/software_isp.h      |  1 +\n src/libcamera/software_isp/software_isp.cpp   | 51 +++++++++++--------\n 2 files changed, 30 insertions(+), 22 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/software_isp/software_isp.h b/include/libcamera/internal/software_isp/software_isp.h\nindex d2b47ecc..fc9200dd 100644\n--- a/include/libcamera/internal/software_isp/software_isp.h\n+++ b/include/libcamera/internal/software_isp/software_isp.h\n@@ -95,6 +95,7 @@ private:\n \tThread ispWorkerThread_;\n \tSharedMemObject<DebayerParams> sharedParams_;\n \tDebayerParams debayerParams_;\n+\tbool allocateParamsBuffers();\n \tDmaBufAllocator dmaHeap_;\n \n \tstd::unique_ptr<ipa::soft::IPAProxySoft> ipa_;\ndiff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp\nindex 0412b401..3f41b71d 100644\n--- a/src/libcamera/software_isp/software_isp.cpp\n+++ b/src/libcamera/software_isp/software_isp.cpp\n@@ -68,33 +68,12 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor)\n \t\t   DmaBufAllocator::DmaBufAllocatorFlag::SystemHeap |\n \t\t   DmaBufAllocator::DmaBufAllocatorFlag::UDmaBuf)\n {\n-\t/*\n-\t * debayerParams_ must be initialized because the initial value is used for\n-\t * the first two frames, i.e. until stats processing starts providing its\n-\t * own parameters.\n-\t *\n-\t * \\todo This should be handled in the same place as the related\n-\t * operations, in the IPA module.\n-\t */\n-\tstd::array<uint8_t, 256> gammaTable;\n-\tfor (unsigned int i = 0; i < 256; i++)\n-\t\tgammaTable[i] = UINT8_MAX * std::pow(i / 256.0, 0.5);\n-\tfor (unsigned int i = 0; i < DebayerParams::kRGBLookupSize; i++) {\n-\t\tdebayerParams_.red[i] = gammaTable[i];\n-\t\tdebayerParams_.green[i] = gammaTable[i];\n-\t\tdebayerParams_.blue[i] = gammaTable[i];\n-\t}\n-\n \tif (!dmaHeap_.isValid()) {\n \t\tLOG(SoftwareIsp, Error) << \"Failed to create DmaBufAllocator object\";\n \t\treturn;\n \t}\n-\n-\tsharedParams_ = SharedMemObject<DebayerParams>(\"softIsp_params\");\n-\tif (!sharedParams_) {\n-\t\tLOG(SoftwareIsp, Error) << \"Failed to create shared memory for parameters\";\n+\tif (!allocateParamsBuffers())\n \t\treturn;\n-\t}\n \n \tauto stats = std::make_unique<SwStatsCpu>();\n \tif (!stats->isValid()) {\n@@ -145,6 +124,34 @@ SoftwareIsp::~SoftwareIsp()\n \tdebayer_.reset();\n }\n \n+bool SoftwareIsp::allocateParamsBuffers()\n+{\n+\t/*\n+\t * DebayerParams must be initialized because the initial value is used for\n+\t * the first two frames, i.e. until stats processing starts providing its\n+\t * own parameters.\n+\t *\n+\t * \\todo This should be handled in the same place as the related\n+\t * operations, in the IPA module.\n+\t */\n+\tstd::array<uint8_t, 256> gammaTable;\n+\tfor (unsigned int i = 0; i < 256; i++)\n+\t\tgammaTable[i] = UINT8_MAX * std::pow(i / 256.0, 0.5);\n+\tfor (unsigned int j = 0; j < DebayerParams::kRGBLookupSize; j++) {\n+\t\tdebayerParams_.red[j] = gammaTable[j];\n+\t\tdebayerParams_.green[j] = gammaTable[j];\n+\t\tdebayerParams_.blue[j] = gammaTable[j];\n+\t}\n+\n+\tsharedParams_ = SharedMemObject<DebayerParams>(\"softIsp_params\");\n+\tif (!sharedParams_) {\n+\t\tLOG(SoftwareIsp, Error) << \"Failed to create shared memory for parameters\";\n+\t\treturn false;\n+\t}\n+\n+\treturn true;\n+}\n+\n /**\n  * \\fn int SoftwareIsp::loadConfiguration([[maybe_unused]] const std::string &filename)\n  * \\brief Load a configuration from a file\n",
    "prefixes": [
        "03/16"
    ]
}