From patchwork Wed Jul 27 22:21:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 16853 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 BCFFBBE173 for ; Wed, 27 Jul 2022 22:22:04 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 47D4E63324; Thu, 28 Jul 2022 00:22:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org; s=mail; t=1658960524; bh=qLJCS3GRp1FhnUvkCdVtCaNVBkD4PNSkddNBh9YbcGw=; h=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=AT1T8Toiv36795wxuI/sILcxR74Q/1vJFXKxUwTSuI8mjX0uEoWDaTCIeUrnX7DD7 IQIYRI8UoFLs8bNJ9OyELgDaWY16wB5iWIb5gSosB2b7Z8bxPpBp39KEJPUUDRuooE pwTx2BxuTYbJY4pZKjz6vAv9/VrCRIjhbiDqY9xZKc8qqMRZXErPepXCsRy+GDVH37 RfZMcSKk7EUazrpvLaTZ6I5QrOw6FvmDxfrAc/0dQRJ3gxWoU4JhLfsTJ26tyNaN7c Gy68QoaFVoj+k2cCKpDT+BdXws/hJYFqyYcsb3CHh3CX9XclNnsoAXQmaOrG1SZ3Ep cIkCVXDhj6uvw== 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 3861363310 for ; Thu, 28 Jul 2022 00:21:58 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="ECgHeeJ8"; dkim-atps=neutral Received: from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id CE7B66D4; Thu, 28 Jul 2022 00:21:57 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1658960517; bh=qLJCS3GRp1FhnUvkCdVtCaNVBkD4PNSkddNBh9YbcGw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ECgHeeJ8j4pekNpL9jzNUdObz3GjTjT59WHKdyRGpeJpIxCmK0XGw3QGxDcw0eSGJ pGb+LtU2cIV+99NDO6ZSJ9ke1xAulMLGvO39Qqae15Jq4xfz+D/SWtejIv58Z0EDVJ dwe/JeujnLquze0c9q5tOsLA9S8AU0GBPsl0+lMA= To: libcamera-devel@lists.libcamera.org Date: Thu, 28 Jul 2022 01:21:45 +0300 Message-Id: <20220727222149.30627-6-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220727222149.30627-1-laurent.pinchart@ideasonboard.com> References: <20220727222149.30627-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v5 5/9] ipa: rkisp1: Add support of Gamma Sensor Linearization control 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: Laurent Pinchart via libcamera-devel From: Laurent Pinchart Reply-To: Laurent Pinchart Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" From: Florian Sylvestre The GammaSensorLinearization algorithm linearizes the sensor output to compensate the sensor non-linearities by applying piecewise linear functions to the red, green and blue channels. Signed-off-by: Florian Sylvestre Reviewed-by: Laurent Pinchart Reviewed-by: Paul Elder --- Changes since v4: - Rebase on std::optional-based version of getList() --- src/ipa/rkisp1/algorithms/gsl.cpp | 149 ++++++++++++++++++++++++++ src/ipa/rkisp1/algorithms/gsl.h | 34 ++++++ src/ipa/rkisp1/algorithms/meson.build | 1 + src/ipa/rkisp1/data/ov5640.yaml | 6 ++ 4 files changed, 190 insertions(+) create mode 100644 src/ipa/rkisp1/algorithms/gsl.cpp create mode 100644 src/ipa/rkisp1/algorithms/gsl.h diff --git a/src/ipa/rkisp1/algorithms/gsl.cpp b/src/ipa/rkisp1/algorithms/gsl.cpp new file mode 100644 index 000000000000..2fd1a23d3a9b --- /dev/null +++ b/src/ipa/rkisp1/algorithms/gsl.cpp @@ -0,0 +1,149 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021-2022, Ideas On Board + * + * gsl.cpp - RkISP1 Gamma Sensor Linearization control + */ + +#include "gsl.h" + +#include +#include + +#include "libcamera/internal/yaml_parser.h" + +#include "linux/rkisp1-config.h" + +/** + * \file gsl.h + */ + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +/** + * \class GammaSensorLinearization + * \brief RkISP1 Gamma Sensor Linearization control + * + * This algorithm linearizes the sensor output to compensate the sensor + * non-linearities by applying piecewise linear functions to the red, green and + * blue channels. + * + * The curves are specified in the tuning data and defined using 17 points. + * + * - The X coordinates are expressed using 16 intervals, with the first point + * at X coordinate 0. Each interval is expressed as a 2-bit value DX (from + * GAMMA_DX_1 to GAMMA_DX_16), stored in the RKISP1_CIF_ISP_GAMMA_DX_LO and + * RKISP1_CIF_ISP_GAMMA_DX_HI registers. The real interval is equal to + * \f$2^{dx+4}\f$. X coordinates are shared between the red, green and blue + * curves. + * + * - The Y coordinates are specified as 17 values separately for the + * red, green and blue channels, with a 12-bit resolution. Each value must be + * in the [-2048, 2047] range compared to the previous value. + */ + +LOG_DEFINE_CATEGORY(RkISP1Gsl) + +static constexpr unsigned int kDegammaXIntervals = 16; + +GammaSensorLinearization::GammaSensorLinearization() + : initialized_(false) +{ +} + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int GammaSensorLinearization::init([[maybe_unused]] IPAContext &context, + const YamlObject &tuningData) +{ + std::vector xIntervals = + tuningData["x-intervals"].getList().value_or(utils::defopt); + if (xIntervals.size() != kDegammaXIntervals) { + LOG(RkISP1Gsl, Error) + << "Invalid 'x' coordinates: expected " + << kDegammaXIntervals << " elements, got " + << xIntervals.size(); + + return -EINVAL; + } + + /* Compute gammaDx_ intervals from xIntervals values */ + gammaDx_[0] = 0; + gammaDx_[1] = 0; + for (unsigned int i = 0; i < kDegammaXIntervals; ++i) + gammaDx_[i / 8] |= (xIntervals[i] & 0x07) << ((i % 8) * 4); + + const YamlObject &yObject = tuningData["y"]; + if (!yObject.isDictionary()) { + LOG(RkISP1Gsl, Error) + << "Issue while parsing 'y' in tuning file: " + << "entry must be a dictionary"; + return -EINVAL; + } + + curveYr_ = yObject["red"].getList().value_or(utils::defopt); + if (curveYr_.size() != RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE) { + LOG(RkISP1Gsl, Error) + << "Invalid 'y:red' coordinates: expected " + << RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE + << " elements, got " << curveYr_.size(); + return -EINVAL; + } + + curveYg_ = yObject["green"].getList().value_or(utils::defopt); + if (curveYg_.size() != RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE) { + LOG(RkISP1Gsl, Error) + << "Invalid 'y:green' coordinates: expected " + << RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE + << " elements, got " << curveYg_.size(); + return -EINVAL; + } + + curveYb_ = yObject["blue"].getList().value_or(utils::defopt); + if (curveYb_.size() != RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE) { + LOG(RkISP1Gsl, Error) + << "Invalid 'y:blue' coordinates: expected " + << RKISP1_CIF_ISP_DEGAMMA_CURVE_SIZE + << " elements, got " << curveYb_.size(); + return -EINVAL; + } + + initialized_ = true; + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::prepare + */ +void GammaSensorLinearization::prepare(IPAContext &context, + rkisp1_params_cfg *params) +{ + if (context.frameContext.frameCount > 0) + return; + + if (!initialized_) + return; + + params->others.sdg_config.xa_pnts.gamma_dx0 = gammaDx_[0]; + params->others.sdg_config.xa_pnts.gamma_dx1 = gammaDx_[1]; + + std::copy(curveYr_.begin(), curveYr_.end(), + params->others.sdg_config.curve_r.gamma_y); + std::copy(curveYg_.begin(), curveYg_.end(), + params->others.sdg_config.curve_g.gamma_y); + std::copy(curveYb_.begin(), curveYb_.end(), + params->others.sdg_config.curve_b.gamma_y); + + params->module_en_update |= RKISP1_CIF_ISP_MODULE_SDG; + params->module_ens |= RKISP1_CIF_ISP_MODULE_SDG; + params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_SDG; +} + +REGISTER_IPA_ALGORITHM(GammaSensorLinearization, "GammaSensorLinearization") + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/gsl.h b/src/ipa/rkisp1/algorithms/gsl.h new file mode 100644 index 000000000000..db287dc280dc --- /dev/null +++ b/src/ipa/rkisp1/algorithms/gsl.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021-2022, Ideas On Board + * + * gsl.h - RkISP1 Gamma Sensor Linearization control + */ + +#pragma once + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +class GammaSensorLinearization : public Algorithm +{ +public: + GammaSensorLinearization(); + ~GammaSensorLinearization() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + void prepare(IPAContext &context, rkisp1_params_cfg *params) override; + +private: + bool initialized_; + uint32_t gammaDx_[2]; + std::vector curveYr_; + std::vector curveYg_; + std::vector curveYb_; +}; + +} /* namespace ipa::rkisp1::algorithms */ +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/meson.build b/src/ipa/rkisp1/algorithms/meson.build index 7ec53d89e4de..0597c353a0f7 100644 --- a/src/ipa/rkisp1/algorithms/meson.build +++ b/src/ipa/rkisp1/algorithms/meson.build @@ -4,4 +4,5 @@ rkisp1_ipa_algorithms = files([ 'agc.cpp', 'awb.cpp', 'blc.cpp', + 'gsl.cpp', ]) diff --git a/src/ipa/rkisp1/data/ov5640.yaml b/src/ipa/rkisp1/data/ov5640.yaml index 232d8ae8d58b..13f764127702 100644 --- a/src/ipa/rkisp1/data/ov5640.yaml +++ b/src/ipa/rkisp1/data/ov5640.yaml @@ -10,4 +10,10 @@ algorithms: Gr: 256 Gb: 256 B: 256 + - GammaSensorLinearization: + x-intervals: [ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 ] + y: + red: [ 0, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2304, 2560, 2816, 3072, 3328, 3584, 3840, 4095 ] + green: [ 0, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2304, 2560, 2816, 3072, 3328, 3584, 3840, 4095 ] + blue: [ 0, 256, 512, 768, 1024, 1280, 1536, 1792, 2048, 2304, 2560, 2816, 3072, 3328, 3584, 3840, 4095 ] ...