From patchwork Mon Jul 24 07:10:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 18863 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 4FCB9C324E for ; Mon, 24 Jul 2023 07:11:23 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id C99FF628C7; Mon, 24 Jul 2023 09:11:21 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org; s=mail; t=1690182681; bh=5sPxj+3er3deOD8JJ1ckeFkzP2xyjqOLP3WMPssZpK4=; h=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=HR+nZe2/0c3/bDLNsi47xoetDfFzMI5SFJDJ92b6gEl3p7Majky5vtaU5+vaqCfDl gr7h/UGazOyQcaE6n7au9PqbebO8KQHT5Gw95exh2oXRayvkX3Vs873DeaMpr2IaiN fsp1Zj16iGOTo4sADwmkIaC/idir3IPMFErGObAuZ4BkOT7qYAy5mfCghETnYRldr+ KCPeWya9zFrVEPHmZr/FRfXX32xCU+/6hUlup+tbNNitnlHG9mbtRel1sXJMC4aH+7 h65PBX/WIVDF/JhY5kAgToIp6796dTGUIsV/XyMGQ7C0CKf/UHZgUhldx18DT+Kwgk vYQW+CM6tsn8A== Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 27EF161E25 for ; Mon, 24 Jul 2023 09:11:20 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="evRgTWMk"; dkim-atps=neutral Received: from uno.localdomain (mob-5-91-20-233.net.vodafone.it [5.91.20.233]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 0AC774AD; Mon, 24 Jul 2023 09:10:21 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1690182622; bh=5sPxj+3er3deOD8JJ1ckeFkzP2xyjqOLP3WMPssZpK4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=evRgTWMkUcGt0g+I56NIU9YmhCHBozcGH+ReculRLU3gcfYe0JO4/Nngn4hgs2oZ+ aSVI0nOcV6dBgAoagja1VyFj22HK8X7aKf+OSsSbvZv7DsI9aI2KNbXPGZkUrfx7CF vOqJNyTip5r5/9rpoImUFxQ8kKa46G3vgHAqYe2A= To: libcamera-devel@lists.libcamera.org Date: Mon, 24 Jul 2023 09:10:52 +0200 Message-Id: <20230724071101.5256-2-jacopo.mondi@ideasonboard.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230724071101.5256-1-jacopo.mondi@ideasonboard.com> References: <20230724071101.5256-1-jacopo.mondi@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v4 01/10] libcamera: camera_sensor: Cache rotationTransform_ 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: , X-Patchwork-Original-From: Jacopo Mondi via libcamera-devel From: Jacopo Mondi Reply-To: Jacopo Mondi Cc: Jacopo Mondi Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The rotationTransform_ depends on a V4L2 control whose value does not change for the whole lifetime of the camera. Instead of re-calculating it everytime the camera is configured, cache it at properties initialization time. Signed-off-by: Jacopo Mondi Reviewed-by: Umang Jain Reviewed-by: Laurent Pinchart Reviewed-by: David Plowman --- include/libcamera/internal/camera_sensor.h | 1 + src/libcamera/camera_sensor.cpp | 54 +++++++++++++--------- 2 files changed, 32 insertions(+), 23 deletions(-) diff --git a/include/libcamera/internal/camera_sensor.h b/include/libcamera/internal/camera_sensor.h index 02c77ab037da..02b4b4d25e6d 100644 --- a/include/libcamera/internal/camera_sensor.h +++ b/include/libcamera/internal/camera_sensor.h @@ -107,6 +107,7 @@ private: Rectangle activeArea_; const BayerFormat *bayerFormat_; bool supportFlips_; + Transform rotationTransform_; ControlList properties_; diff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp index f3a5aa37149f..9a033459742f 100644 --- a/src/libcamera/camera_sensor.cpp +++ b/src/libcamera/camera_sensor.cpp @@ -461,18 +461,36 @@ int CameraSensor::initProperties() const auto &rotationControl = controls.find(V4L2_CID_CAMERA_SENSOR_ROTATION); if (rotationControl != controls.end()) { + propertyValue = rotationControl->second.def().get(); + /* - * validateTransform() compensates for the mounting rotation. - * However, as a camera sensor can only compensate rotations - * by applying H/VFlips, only rotation of 180 degrees are - * automatically compensated. The other valid rotations (Rot90 - * and Rot270) require transposition, which the camera sensor - * cannot perform, so leave them untouched. + * Cache the Transform associated with the camera mounting + * rotation for later use in validateTransform(). + */ + bool success; + rotationTransform_ = transformFromRotation(propertyValue, &success); + if (!success) { + LOG(CameraSensor, Warning) + << "Invalid rotation of " << propertyValue + << " degrees - ignoring"; + rotationTransform_ = Transform::Identity; + } + + /* + * Adjust property::Rotation as validateTransform() compensates + * for the mounting rotation. However, as a camera sensor can + * only compensate rotations by applying H/VFlips, only rotation + * of 180 degrees are automatically compensated. The other valid + * rotations (Rot90 and Rot270) require transposition, which the + * camera sensor cannot perform, so leave them untouched. */ - propertyValue = rotationControl->second.def().get(); if (propertyValue == 180 && supportFlips_) propertyValue = 0; properties_.set(properties::Rotation, propertyValue); + } else { + LOG(CameraSensor, Warning) + << "Rotation control not available, default to 0 degrees"; + rotationTransform_ = Transform::Identity; } properties_.set(properties::PixelArraySize, pixelArraySize_); @@ -1038,21 +1056,11 @@ void CameraSensor::updateControlInfo() */ Transform CameraSensor::validateTransform(Transform *transform) const { - /* Adjust the requested transform to compensate the sensor mounting rotation. */ - const ControlInfoMap &controls = subdev_->controls(); - int rotation = 0; - - const auto &rotationControl = controls.find(V4L2_CID_CAMERA_SENSOR_ROTATION); - if (rotationControl != controls.end()) - rotation = rotationControl->second.def().get(); - - bool success; - Transform rotationTransform = transformFromRotation(rotation, &success); - if (!success) - LOG(CameraSensor, Warning) << "Invalid rotation of " << rotation - << " degrees - ignoring"; - - Transform combined = *transform * rotationTransform; + /* + * Combine the requested transform to compensate the sensor mounting + * rotation. + */ + Transform combined = *transform * rotationTransform_; /* * We combine the platform and user transform, but must "adjust away" @@ -1083,7 +1091,7 @@ Transform CameraSensor::validateTransform(Transform *transform) const * rise to this is the inverse of the rotation. (Recall that * combined = transform * rotationTransform.) */ - *transform = -rotationTransform; + *transform = -rotationTransform_; combined = Transform::Identity; }