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{
    "id": 19585,
    "url": "https://patchwork.libcamera.org/api/patches/19585/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/19585/",
    "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": "<20240229183654.7206-16-hdegoede@redhat.com>",
    "date": "2024-02-29T18:36:26",
    "name": "[v4,15/18] libcamera: debayer_cpu: Add BGR888 output support",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "05a2beda476b7d4e6325e90eb19ae20c3485295b",
    "submitter": {
        "id": 102,
        "url": "https://patchwork.libcamera.org/api/people/102/?format=api",
        "name": "Hans de Goede",
        "email": "hdegoede@redhat.com"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/19585/mbox/",
    "series": [
        {
            "id": 4195,
            "url": "https://patchwork.libcamera.org/api/series/4195/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=4195",
            "date": "2024-02-29T18:36:11",
            "name": "libcamera: introduce Software ISP and Software IPA",
            "version": 4,
            "mbox": "https://patchwork.libcamera.org/series/4195/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/19585/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/19585/checks/",
    "tags": {},
    "headers": {
        "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>",
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        "X-MC-Unique": "fghS5g8GPcahZC2axQrBwg-1",
        "From": "Hans de Goede <hdegoede@redhat.com>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Subject": "[PATCH v4 15/18] libcamera: debayer_cpu: Add BGR888 output support",
        "Date": "Thu, 29 Feb 2024 19:36:26 +0100",
        "Message-ID": "<20240229183654.7206-16-hdegoede@redhat.com>",
        "In-Reply-To": "<20240229183654.7206-1-hdegoede@redhat.com>",
        "References": "<20240229183654.7206-1-hdegoede@redhat.com>",
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        "X-Mimecast-Originator": "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>",
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        "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>",
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        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "Cc": "Maxime Ripard <mripard@redhat.com>, Pavel Machek <pavel@ucw.cz>,\n\tBryan O'Donoghue <bryan.odonoghue@linaro.org>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "BGR888 is RGB888 with the red and blue pixels swapped, adjust\nthe debayering to swap the red and blue pixels in the bayer pattern\nto add support for writing formats::BGR888.\n\nTested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # sc8280xp Lenovo x13s\nTested-by: Pavel Machek <pavel@ucw.cz>\nSigned-off-by: Hans de Goede <hdegoede@redhat.com>\n---\n src/libcamera/software_isp/debayer_cpu.cpp | 42 +++++++++++++++++++---\n src/libcamera/software_isp/debayer_cpu.h   |  1 +\n 2 files changed, 38 insertions(+), 5 deletions(-)",
    "diff": "diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp\nindex 22ae99cd..215ca615 100644\n--- a/src/libcamera/software_isp/debayer_cpu.cpp\n+++ b/src/libcamera/software_isp/debayer_cpu.cpp\n@@ -261,7 +261,7 @@ int DebayerCpu::getInputConfig(PixelFormat inputFormat, DebayerInputConfig &conf\n \t\tconfig.bpp = (bayerFormat.bitDepth + 7) & ~7;\n \t\tconfig.patternSize.width = 2;\n \t\tconfig.patternSize.height = 2;\n-\t\tconfig.outputFormats = std::vector<PixelFormat>({ formats::RGB888 });\n+\t\tconfig.outputFormats = std::vector<PixelFormat>({ formats::RGB888, formats::BGR888 });\n \t\treturn 0;\n \t}\n \n@@ -271,7 +271,7 @@ int DebayerCpu::getInputConfig(PixelFormat inputFormat, DebayerInputConfig &conf\n \t\tconfig.bpp = 10;\n \t\tconfig.patternSize.width = 4; /* 5 bytes per *4* pixels */\n \t\tconfig.patternSize.height = 2;\n-\t\tconfig.outputFormats = std::vector<PixelFormat>({ formats::RGB888 });\n+\t\tconfig.outputFormats = std::vector<PixelFormat>({ formats::RGB888, formats::BGR888 });\n \t\treturn 0;\n \t}\n \n@@ -282,7 +282,7 @@ int DebayerCpu::getInputConfig(PixelFormat inputFormat, DebayerInputConfig &conf\n \n int DebayerCpu::getOutputConfig(PixelFormat outputFormat, DebayerOutputConfig &config)\n {\n-\tif (outputFormat == formats::RGB888) {\n+\tif (outputFormat == formats::RGB888 || outputFormat == formats::BGR888) {\n \t\tconfig.bpp = 24;\n \t\treturn 0;\n \t}\n@@ -318,13 +318,41 @@ int DebayerCpu::setupStandardBayerOrder(BayerFormat::Order order)\n \treturn 0;\n }\n \n-/* TODO: this ignores outputFormat since there is only 1 supported outputFormat for now */\n-int DebayerCpu::setDebayerFunctions(PixelFormat inputFormat, [[maybe_unused]] PixelFormat outputFormat)\n+int DebayerCpu::setDebayerFunctions(PixelFormat inputFormat, PixelFormat outputFormat)\n {\n \tBayerFormat bayerFormat =\n \t\tBayerFormat::fromPixelFormat(inputFormat);\n \n \txShift_ = 0;\n+\tswapRedBlueGains_ = false;\n+\n+\tswitch (outputFormat) {\n+\tcase formats::RGB888:\n+\t\tbreak;\n+\tcase formats::BGR888:\n+\t\t/* Swap R and B in bayer order to generate BGR888 instead of RGB888 */\n+\t\tswapRedBlueGains_ = true;\n+\n+\t\tswitch (bayerFormat.order) {\n+\t\tcase BayerFormat::BGGR:\n+\t\t\tbayerFormat.order = BayerFormat::RGGB;\n+\t\t\tbreak;\n+\t\tcase BayerFormat::GBRG:\n+\t\t\tbayerFormat.order = BayerFormat::GRBG;\n+\t\t\tbreak;\n+\t\tcase BayerFormat::GRBG:\n+\t\t\tbayerFormat.order = BayerFormat::GBRG;\n+\t\t\tbreak;\n+\t\tcase BayerFormat::RGGB:\n+\t\t\tbayerFormat.order = BayerFormat::BGGR;\n+\t\t\tbreak;\n+\t\tdefault:\n+\t\t\tgoto invalid_fmt;\n+\t\t}\n+\t\tbreak;\n+\tdefault:\n+\t\tgoto invalid_fmt;\n+\t}\n \n \tif ((bayerFormat.bitDepth == 8 || bayerFormat.bitDepth == 10 || bayerFormat.bitDepth == 12) &&\n \t    bayerFormat.packing == BayerFormat::Packing::None &&\n@@ -371,6 +399,7 @@ int DebayerCpu::setDebayerFunctions(PixelFormat inputFormat, [[maybe_unused]] Pi\n \t\t}\n \t}\n \n+invalid_fmt:\n \tLOG(Debayer, Error) << \"Unsupported input output format combination\";\n \treturn -EINVAL;\n }\n@@ -654,6 +683,9 @@ void DebayerCpu::process(FrameBuffer *input, FrameBuffer *output, DebayerParams\n \t\tgamma_correction_ = params.gamma;\n \t}\n \n+\tif (swapRedBlueGains_)\n+\t\tstd::swap(params.gainR, params.gainB);\n+\n \tfor (unsigned int i = 0; i < kRGBLookupSize; i++) {\n \t\tconstexpr unsigned int div =\n \t\t\tkRGBLookupSize * DebayerParams::kGain10 / kGammaLookupSize;\ndiff --git a/src/libcamera/software_isp/debayer_cpu.h b/src/libcamera/software_isp/debayer_cpu.h\nindex 73ca41f1..b9e5f3fd 100644\n--- a/src/libcamera/software_isp/debayer_cpu.h\n+++ b/src/libcamera/software_isp/debayer_cpu.h\n@@ -145,6 +145,7 @@ private:\n \tunsigned int lineBufferIndex_;\n \tunsigned int xShift_; /* Offset of 0/1 applied to window_.x */\n \tbool enableInputMemcpy_;\n+\tbool swapRedBlueGains_;\n \tfloat gamma_correction_;\n \tunsigned int measuredFrames_;\n \tint64_t frameProcessTime_;\n",
    "prefixes": [
        "v4",
        "15/18"
    ]
}