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{ "id": 25581, "url": "https://patchwork.libcamera.org/api/patches/25581/?format=api", "web_url": "https://patchwork.libcamera.org/patch/25581/", "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": "<20251217100138.82525-9-bryan.odonoghue@linaro.org>", "date": "2025-12-17T10:01:20", "name": "[v9,08/26] libcamera: shaders: Add support for black level compensation", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "1e4d840dcfd8f9799dd645f70a5f669ba26f823b", "submitter": { "id": 175, "url": "https://patchwork.libcamera.org/api/people/175/?format=api", "name": "Bryan O'Donoghue", "email": "bryan.odonoghue@linaro.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/25581/mbox/", "series": [ { "id": 5669, "url": "https://patchwork.libcamera.org/api/series/5669/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5669", "date": "2025-12-17T10:01:12", "name": "Add GLES 2.0 GPUISP to libcamera", "version": 9, "mbox": "https://patchwork.libcamera.org/series/5669/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/25581/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/25581/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 E2097C3274\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 17 Dec 2025 10:02:04 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 41B0A61A4E;\n\tWed, 17 Dec 2025 11:02:04 +0100 (CET)", "from mail-wm1-x329.google.com (mail-wm1-x329.google.com\n\t[IPv6:2a00:1450:4864:20::329])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A552961A61\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 17 Dec 2025 11:01:52 +0100 (CET)", "by mail-wm1-x329.google.com with SMTP id\n\t5b1f17b1804b1-4775ae77516so65869655e9.1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 17 Dec 2025 02:01:52 -0800 (PST)", "from inspiron14p-linux.ht.home (188-141-3-146.dynamic.upc.ie.\n\t[188.141.3.146]) by smtp.gmail.com with ESMTPSA id\n\t5b1f17b1804b1-47bdc1583fbsm32292585e9.0.2025.12.17.02.01.50\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tWed, 17 Dec 2025 02:01:51 -0800 (PST)" ], "Authentication-Results": "lancelot.ideasonboard.com; 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\n\tWed, 17 Dec 2025 02:01:51 -0800 (PST)", "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "pavel@ucw.cz, Bryan O'Donoghue <bryan.odonoghue@linaro.org>,\n\tMilan Zamazal <mzamazal@redhat.com>", "Subject": "[PATCH v9 08/26] libcamera: shaders: Add support for black level\n\tcompensation", "Date": "Wed, 17 Dec 2025 10:01:20 +0000", "Message-ID": "<20251217100138.82525-9-bryan.odonoghue@linaro.org>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20251217100138.82525-1-bryan.odonoghue@linaro.org>", "References": "<20251217100138.82525-1-bryan.odonoghue@linaro.org>", "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": "Add the ability to apply a int blacklevel gain against the demosaiced data\nprior to application of colour correction data.\n\nReviewed-by: Milan Zamazal <mzamazal@redhat.com>\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n src/libcamera/shaders/bayer_1x_packed.frag | 3 +++\n src/libcamera/shaders/bayer_unpacked.frag | 3 +++\n 2 files changed, 6 insertions(+)", "diff": "diff --git a/src/libcamera/shaders/bayer_1x_packed.frag b/src/libcamera/shaders/bayer_1x_packed.frag\nindex db8c2a0b3..7036fe278 100644\n--- a/src/libcamera/shaders/bayer_1x_packed.frag\n+++ b/src/libcamera/shaders/bayer_1x_packed.frag\n@@ -66,6 +66,7 @@ uniform vec2 tex_bayer_first_red;\n \n uniform sampler2D tex_y;\n uniform mat3 ccm;\n+uniform vec3 blacklevel;\n \n void main(void)\n {\n@@ -213,6 +214,8 @@ void main(void)\n \t\t\tvec3(patterns.y, C, patterns.x) :\n \t\t\tvec3(patterns.wz, C));\n \n+\trgb = rgb - blacklevel;\n+\n \t/*\n \t * CCM is a 3x3 in the format\n \t *\ndiff --git a/src/libcamera/shaders/bayer_unpacked.frag b/src/libcamera/shaders/bayer_unpacked.frag\nindex 06d80f3dd..f0d8cd1e2 100644\n--- a/src/libcamera/shaders/bayer_unpacked.frag\n+++ b/src/libcamera/shaders/bayer_unpacked.frag\n@@ -25,6 +25,7 @@ varying vec4 center;\n varying vec4 yCoord;\n varying vec4 xCoord;\n uniform mat3 ccm;\n+uniform vec3 blacklevel;\n \n void main(void) {\n vec3 rgb;\n@@ -108,6 +109,8 @@ void main(void) {\n vec3(PATTERN.w, C, PATTERN.z) :\n vec3(PATTERN.yx, C));\n \n+ rgb = rgb - blacklevel;\n+\n /*\n * CCM is a 3x3 in the format\n *\n", "prefixes": [ "v9", "08/26" ] }