{"id":27481,"url":"https://patchwork.libcamera.org/api/patches/27481/?format=json","web_url":"https://patchwork.libcamera.org/patch/27481/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260723154327.1357866-32-barnabas.pocze@ideasonboard.com>","date":"2026-07-23T15:43:14","name":"[RFC,v2,31/43] ipa: libipa: histogram: Add `operator[]` to query bin","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"1bebb4a5d32cb2fa6744e806d7564247f1ada7ae","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/?format=json","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/27481/mbox/","series":[{"id":6075,"url":"https://patchwork.libcamera.org/api/series/6075/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=6075","date":"2026-07-23T15:42:43","name":"ipa: libipa: agc rework","version":2,"mbox":"https://patchwork.libcamera.org/series/6075/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/27481/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/27481/checks/","tags":{},"headers":{"Return-Path":"","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 2D161C3303\n\tfor ;\n\tThu, 23 Jul 2026 15:44:18 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id D8BE567F47;\n\tThu, 23 Jul 2026 17:44:17 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 8630667ECD\n\tfor ;\n\tThu, 23 Jul 2026 17:43:38 +0200 (CEST)","from pb-laptop.local (185.182.215.156.nat.pool.zt.hu\n\t[185.182.215.156])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 9A97723B9\n\tfor ;\n\tThu, 23 Jul 2026 17:42:37 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"QRfz/BTY\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1784821357;\n\tbh=2kiikFk3037quxt7ucPm4CXAxdeytL1/WZOa4jGuNEY=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=QRfz/BTYS8hywYKRipActou6YRg2fGVwmrPzp11OVTN4DXVItZzjhvbGzc/D1IexY\n\te7M+sqn7Crfe4naS6HC7dWYa0AF/Suy95nIG6xN4l1g9nweRZZjHj69rtLQaioHI3H\n\txGza+UBRQwqOukGqPE8FjbVT2UvBndTuaCP3BTNI=","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","To":"libcamera-devel@lists.libcamera.org","Subject":"[RFC PATCH v2 31/43] ipa: libipa: histogram: Add `operator[]` to\n\tquery bin","Date":"Thu, 23 Jul 2026 17:43:14 +0200","Message-ID":"<20260723154327.1357866-32-barnabas.pocze@ideasonboard.com>","X-Mailer":"git-send-email 2.55.0","In-Reply-To":"<20260723154327.1357866-1-barnabas.pocze@ideasonboard.com>","References":"<20260723154327.1357866-1-barnabas.pocze@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Add an `operator[]` that takes an integral bin number and returns\nthe count pertaining to that specific bin.\n\nSigned-off-by: Barnabás Pőcze \n---\n src/ipa/libipa/histogram.cpp | 6 ++++++\n src/ipa/libipa/histogram.h | 7 +++++++\n 2 files changed, 13 insertions(+)","diff":"diff --git a/src/ipa/libipa/histogram.cpp b/src/ipa/libipa/histogram.cpp\nindex bcf2639082..2f91ffb6d7 100644\n--- a/src/ipa/libipa/histogram.cpp\n+++ b/src/ipa/libipa/histogram.cpp\n@@ -74,6 +74,12 @@ Histogram::Histogram(Span data)\n * \\return Number of values\n */\n \n+/**\n+ * \\fn Histogram::operator[](size_t bin) const\n+ * \\brief Retrieve the value for \\a bin\n+ * \\return The value in \\a bin, or 0 if \\a bin is out of range\n+ */\n+\n /**\n * \\brief Cumulative frequency up to a (fractional) point in a bin\n * \\param[in] bin The bin up to which to cumulate\ndiff --git a/src/ipa/libipa/histogram.h b/src/ipa/libipa/histogram.h\nindex 0c02dda2ba..b3f59b7c31 100644\n--- a/src/ipa/libipa/histogram.h\n+++ b/src/ipa/libipa/histogram.h\n@@ -42,6 +42,13 @@ public:\n \tdouble quantile(double q, uint32_t first = 0, uint32_t last = UINT_MAX) const;\n \tdouble interQuantileMean(double lowQuantile, double hiQuantile) const;\n \n+\tuint32_t operator[](size_t bin) const\n+\t{\n+\t\treturn bin < bins()\n+\t\t\t? cumulative_[bin + 1] - cumulative_[bin]\n+\t\t\t: 0;\n+\t}\n+\n private:\n \tstd::vector cumulative_;\n };\n","prefixes":["RFC","v2","31/43"]}