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{ "id": 24455, "url": "https://patchwork.libcamera.org/api/patches/24455/?format=api", "web_url": "https://patchwork.libcamera.org/patch/24455/", "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": "<20250925192856.77881-2-mzamazal@redhat.com>", "date": "2025-09-25T19:28:50", "name": "[v4,1/7] libcamera: software_isp: Fix width adjustment in SwStatsCpu::setWindow", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "8e2716c4824bf330e3cc4b383597bfab97a01584", "submitter": { "id": 177, "url": "https://patchwork.libcamera.org/api/people/177/?format=api", "name": "Milan Zamazal", "email": "mzamazal@redhat.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/24455/mbox/", "series": [ { "id": 5458, "url": "https://patchwork.libcamera.org/api/series/5458/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5458", "date": "2025-09-25T19:28:49", "name": "Fix stats related problems in software ISP", "version": 4, "mbox": "https://patchwork.libcamera.org/series/5458/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/24455/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/24455/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 430A9C328C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 25 Sep 2025 19:29:15 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id C72176B5FB;\n\tThu, 25 Sep 2025 21:29:14 +0200 (CEST)", "from us-smtp-delivery-124.mimecast.com\n\t(us-smtp-delivery-124.mimecast.com [170.10.129.124])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id E61AF69318\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 25 Sep 2025 21:29:10 +0200 (CEST)", "from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com\n\t(ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63])\n\tby relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n\tcipher=TLS_AES_256_GCM_SHA384) id us-mta-591-Qij5hSRKMP2DEeijs3TKLA-1;\n\tThu, 25 Sep 2025 15:29:06 -0400", "from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com\n\t(mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com\n\t[10.30.177.17])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange X25519 server-signature RSA-PSS (2048 bits)\n\tserver-digest SHA256) (No client certificate requested)\n\tby mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTPS id 2D4FE195609E; Thu, 25 Sep 2025 19:29:05 +0000 (UTC)", "from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.44.32.62])\n\tby mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTP id 878E91956095; Thu, 25 Sep 2025 19:29:03 +0000 (UTC)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=redhat.com header.i=@redhat.com\n\theader.b=\"acZ6Rs8a\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1758828549;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\tto:to:cc:cc:mime-version:mime-version:content-type:content-type:\n\tcontent-transfer-encoding:content-transfer-encoding:\n\tin-reply-to:in-reply-to:references:references;\n\tbh=NwrFJpnHPVrzbjm6OuH8AKj+KCwc3Xtq1lsigQHKLgQ=;\n\tb=acZ6Rs8af4fKn10QR4Em5sEmG5gsFHN2Z3PHysIw6qhhaZ+3T7gVDFKbTVKpXaIxVcWOA9\n\tDRjgZnia82QQDG1/9UX4Fcc1a/La/anP6EMeVIsxceL5DrRi9tBNGCWqHji8FgqIt7m++y\n\tx731pOj4MYTle1bkgXdghDY2+j2R6yg=", "X-MC-Unique": "Qij5hSRKMP2DEeijs3TKLA-1", "X-Mimecast-MFC-AGG-ID": "Qij5hSRKMP2DEeijs3TKLA_1758828545", "From": "Milan Zamazal <mzamazal@redhat.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Milan Zamazal <mzamazal@redhat.com>, pobrn@protonmail.com,\n\tmail@maciej.szmigiero.name", "Subject": "[PATCH v4 1/7] libcamera: software_isp: Fix width adjustment in\n\tSwStatsCpu::setWindow", "Date": "Thu, 25 Sep 2025 21:28:50 +0200", "Message-ID": "<20250925192856.77881-2-mzamazal@redhat.com>", "In-Reply-To": "<20250925192856.77881-1-mzamazal@redhat.com>", "References": "<20250925192856.77881-1-mzamazal@redhat.com>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 3.0 on 10.30.177.17", "X-Mimecast-Spam-Score": "0", "X-Mimecast-MFC-PROC-ID": "Z4H8srSy5dJLyFkciTpfr8xkFKB7TxW0RA8RA5XRvPM_1758828545", "X-Mimecast-Originator": "redhat.com", "Content-Transfer-Encoding": "8bit", "content-type": "text/plain; charset=\"US-ASCII\"; x-default=true", "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": "SwStatsCpu::setWindow reduces the window width by the added x-offset, to\nprevent exceeding image bounds. But if the window width is smaller than\nthe x-offset, we get unsigned integer underflow. Fix it by setting the\nwindow width to 0 in such a case.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\n---\n src/libcamera/software_isp/swstats_cpu.cpp | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/src/libcamera/software_isp/swstats_cpu.cpp b/src/libcamera/software_isp/swstats_cpu.cpp\nindex 4b77b3600..e8a1d52f2 100644\n--- a/src/libcamera/software_isp/swstats_cpu.cpp\n+++ b/src/libcamera/software_isp/swstats_cpu.cpp\n@@ -426,7 +426,7 @@ void SwStatsCpu::setWindow(const Rectangle &window)\n \twindow_.y &= ~(patternSize_.height - 1);\n \n \t/* width_ - xShift_ to make sure the window fits */\n-\twindow_.width -= xShift_;\n+\twindow_.width = (window_.width > xShift_ ? window_.width - xShift_ : 0);\n \twindow_.width &= ~(patternSize_.width - 1);\n \twindow_.height &= ~(patternSize_.height - 1);\n }\n", "prefixes": [ "v4", "1/7" ] }