From patchwork Thu May 13 15:21:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 12275 X-Patchwork-Delegate: jacopo@jmondi.org Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 8AB70C31F1 for ; Thu, 13 May 2021 15:20:44 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 59E1868925; Thu, 13 May 2021 17:20:44 +0200 (CEST) Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 5818068909 for ; Thu, 13 May 2021 17:20:42 +0200 (CEST) X-Originating-IP: 79.53.131.195 Received: from uno.homenet.telecomitalia.it (host-79-53-131-195.retail.telecomitalia.it [79.53.131.195]) (Authenticated sender: jacopo@jmondi.org) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id CEEAAC0002; Thu, 13 May 2021 15:20:40 +0000 (UTC) From: Jacopo Mondi To: libcamera-devel@lists.libcamera.org Date: Thu, 13 May 2021 17:21:12 +0200 Message-Id: <20210513152116.17666-5-jacopo@jmondi.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210513152116.17666-1-jacopo@jmondi.org> References: <20210513152116.17666-1-jacopo@jmondi.org> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v3 4/8] libcamera: ipu3: imgu: Fix BDS height calculation X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The IF rectangle height is iteratively computed by first subtracting the scaling factor to the estimated height, then in a successive loop by adding the same scaling factor until the maximum IF size is not reached. As the computed IF height is not cached in any variable, the second loop over-writes the result of the first one, even if the BDS alignment condition is not satisfied. Fix this by caching the result of the two iterations, and use the one that produced any result, with a preference for the one produced by the second loop, as implemented in the reference python script. Signed-off-by: Jacopo Mondi Tested-by: Jean-Michel Hautbois Reviewed-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Reviewed-by: Niklas Söderlund Reviewed-by: Hirokazu Honda --- src/libcamera/pipeline/ipu3/imgu.cpp | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/libcamera/pipeline/ipu3/imgu.cpp b/src/libcamera/pipeline/ipu3/imgu.cpp index d878a029ad84..a325b787d916 100644 --- a/src/libcamera/pipeline/ipu3/imgu.cpp +++ b/src/libcamera/pipeline/ipu3/imgu.cpp @@ -129,10 +129,10 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe, const Size &iif, const Size &gdc float bdsHeight; if (!isSameRatio(pipe->input, gdc)) { + unsigned int foundIfHeight = 0; float estIFHeight = (iif.width * gdc.height) / static_cast(gdc.width); estIFHeight = std::clamp(estIFHeight, minIFHeight, iif.height); - bool found = false; ifHeight = utils::alignUp(estIFHeight, IF_ALIGN_H); while (ifHeight >= minIFHeight && ifHeight / bdsSF >= minBDSHeight) { @@ -142,7 +142,7 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe, const Size &iif, const Size &gdc unsigned int bdsIntHeight = static_cast(bdsHeight); if (!(bdsIntHeight % BDS_ALIGN_H)) { - found = true; + foundIfHeight = ifHeight; break; } } @@ -158,7 +158,7 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe, const Size &iif, const Size &gdc unsigned int bdsIntHeight = static_cast(bdsHeight); if (!(bdsIntHeight % BDS_ALIGN_H)) { - found = true; + foundIfHeight = ifHeight; break; } } @@ -166,10 +166,10 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe, const Size &iif, const Size &gdc ifHeight += IF_ALIGN_H; } - if (found) { + if (foundIfHeight) { unsigned int bdsIntHeight = static_cast(bdsHeight); - pipeConfigs.push_back({ bdsSF, { iif.width, ifHeight }, + pipeConfigs.push_back({ bdsSF, { iif.width, foundIfHeight }, { bdsWidth, bdsIntHeight }, gdc }); return; }