From patchwork Sun Jun 16 17:45:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 20344 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 DB894C32CF for ; Sun, 16 Jun 2024 17:46:12 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 288D265497; Sun, 16 Jun 2024 19:46:12 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="J34AT7mg"; dkim-atps=neutral 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 D04CC65490 for ; Sun, 16 Jun 2024 19:46:07 +0200 (CEST) Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 70CC82D5; Sun, 16 Jun 2024 19:45:51 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1718559951; bh=mTzbNY1TvRpZMGhbf3kYd120tG4UA0q0g0J3ACMt5O4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=J34AT7mgP22vtpYxSaFVHXAonwbErdFtv8XkBIKUvvxoFnsLWZ0lmA6DE8xjzW5Zv 7PS5SoKtiBdvKSk0+BQ9OSyGkq/1P9v/X9CGX4ecHmpuhgVfgJMfiGNldxO57LxJ0m ieWSsxibl7vryTORgHwZ/cJFOucraV6jpaqD74q4= From: Laurent Pinchart To: libcamera-devel@lists.libcamera.org Cc: Paul Elder Subject: [PATCH v10 3/4] ipa: rkisp1: algorithms: Add crosstalk algorithm Date: Sun, 16 Jun 2024 20:45:40 +0300 Message-ID: <20240616174541.10708-4-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240616174541.10708-1-laurent.pinchart@ideasonboard.com> References: <20240616174541.10708-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 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" From: Paul Elder Add an algorithm module to the rkisp1 IPA for crosstalk correction. Signed-off-by: Paul Elder Reviewed-by: Stefan Klug Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- Changes since v9: - Add \todo comment about colour temperature filtering Changes in v9: - compilation fixes Changes in v8: - cleanups Changes in v7: - make offsets_ default to zero-matrices as opposed to identity matrices - checkstyle - populate metadata - add ccm to IPAFrameContext - don't update the ccm if the color temperature didn't change No change in v6 Changes in v5: - clean up documentation - coalesce parseYaml into init Changes in v4: - remove stray semicolons - use the new matrix interpolator readYaml - use the new matrix operator[] getter Changes in v3: - read ccm offsets from tuning data, and write these offsets to the parameters buffer - make parseYaml return void, as it should fill in default data if unable to read, thus never failing Changes in v2: - rename ctk to ccm - reset the matrix interpolator to identity matrix if failed to read from tuning file --- src/ipa/rkisp1/algorithms/ccm.cpp | 147 ++++++++++++++++++++++++++ src/ipa/rkisp1/algorithms/ccm.h | 49 +++++++++ src/ipa/rkisp1/algorithms/meson.build | 1 + src/ipa/rkisp1/ipa_context.h | 5 + 4 files changed, 202 insertions(+) create mode 100644 src/ipa/rkisp1/algorithms/ccm.cpp create mode 100644 src/ipa/rkisp1/algorithms/ccm.h diff --git a/src/ipa/rkisp1/algorithms/ccm.cpp b/src/ipa/rkisp1/algorithms/ccm.cpp new file mode 100644 index 000000000000..c1f5403a8ab2 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/ccm.cpp @@ -0,0 +1,147 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Color Correction Matrix control algorithm + */ + +#include "ccm.h" + +#include +#include +#include +#include +#include + +#include +#include + +#include + +#include + +#include "libcamera/internal/yaml_parser.h" + +#include "../utils.h" +#include "libipa/matrix_interpolator.h" + +/** + * \file ccm.h + */ + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +/** + * \class Ccm + * \brief A color correction matrix algorithm + */ + +LOG_DEFINE_CATEGORY(RkISP1Ccm) + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int Ccm::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) +{ + int ret = ccm_.readYaml(tuningData["ccms"], "ct", "ccm"); + if (ret < 0) { + LOG(RkISP1Ccm, Warning) + << "Failed to parse 'ccm' " + << "parameter from tuning file; falling back to unit matrix"; + ccm_.reset(); + } + + ret = offsets_.readYaml(tuningData["ccms"], "ct", "offsets"); + if (ret < 0) { + LOG(RkISP1Ccm, Warning) + << "Failed to parse 'offsets' " + << "parameter from tuning file; falling back to zero offsets"; + /* + * MatrixInterpolator::reset() resets to identity matrices + * while here we need zero matrices so we need to construct it + * ourselves. + */ + Matrix m({ 0, 0, 0 }); + std::map> matrices = { { 0, m } }; + offsets_ = MatrixInterpolator(matrices); + } + + return 0; +} + +void Ccm::setParameters(rkisp1_params_cfg *params, + const Matrix &matrix, + const Matrix &offsets) +{ + struct rkisp1_cif_isp_ctk_config &config = params->others.ctk_config; + + /* + * 4 bit integer and 7 bit fractional, ranging from -8 (0x400) to + * +7.992 (0x3ff) + */ + for (unsigned int i = 0; i < 3; i++) { + for (unsigned int j = 0; j < 3; j++) + config.coeff[i][j] = + utils::floatingToFixedPoint<4, 7, uint16_t, double>(matrix[i][j]); + } + + for (unsigned int i = 0; i < 3; i++) + config.ct_offset[i] = offsets[i][0] & 0xfff; + + LOG(RkISP1Ccm, Debug) << "Setting matrix " << matrix; + LOG(RkISP1Ccm, Debug) << "Setting offsets " << offsets; + + params->module_en_update |= RKISP1_CIF_ISP_MODULE_CTK; + params->module_ens |= RKISP1_CIF_ISP_MODULE_CTK; + params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_CTK; +} + +/** + * \copydoc libcamera::ipa::Algorithm::prepare + */ +void Ccm::prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + rkisp1_params_cfg *params) +{ + uint32_t ct = context.activeState.awb.temperatureK; + + /* + * \todo The colour temperature will likely be noisy, add filtering to + * avoid updating the CCM matrix all the time. + */ + if (frame > 0 && ct == ct_) + return; + + ct_ = ct; + Matrix ccm = ccm_.get(ct); + Matrix offsets = offsets_.get(ct); + + frameContext.ccm.ccm = ccm; + + setParameters(params, ccm, offsets); +} + +/** + * \copydoc libcamera::ipa::Algorithm::process + */ +void Ccm::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + [[maybe_unused]] const rkisp1_stat_buffer *stats, + ControlList &metadata) +{ + float m[9]; + for (unsigned int i = 0; i < 3; i++) { + for (unsigned int j = 0; j < 3; j++) + m[i] = frameContext.ccm.ccm[i][j]; + } + metadata.set(controls::ColourCorrectionMatrix, m); +} + +REGISTER_IPA_ALGORITHM(Ccm, "Ccm") + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/ccm.h b/src/ipa/rkisp1/algorithms/ccm.h new file mode 100644 index 000000000000..30cb882180cc --- /dev/null +++ b/src/ipa/rkisp1/algorithms/ccm.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Color Correction Matrix control algorithm + */ + +#pragma once + +#include + +#include "libipa/matrix.h" +#include "libipa/matrix_interpolator.h" + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +class Ccm : public Algorithm +{ +public: + Ccm() {} + ~Ccm() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + rkisp1_params_cfg *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) override; + +private: + void parseYaml(const YamlObject &tuningData); + void setParameters(rkisp1_params_cfg *params, + const Matrix &matrix, + const Matrix &offsets); + + unsigned int ct_; + MatrixInterpolator ccm_; + MatrixInterpolator offsets_; +}; + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/meson.build b/src/ipa/rkisp1/algorithms/meson.build index 6ee71a9b5da3..1734a6675f78 100644 --- a/src/ipa/rkisp1/algorithms/meson.build +++ b/src/ipa/rkisp1/algorithms/meson.build @@ -4,6 +4,7 @@ rkisp1_ipa_algorithms = files([ 'agc.cpp', 'awb.cpp', 'blc.cpp', + 'ccm.cpp', 'cproc.cpp', 'dpcc.cpp', 'dpf.cpp', diff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h index 6022480d4fd2..4f01a7f8ed33 100644 --- a/src/ipa/rkisp1/ipa_context.h +++ b/src/ipa/rkisp1/ipa_context.h @@ -17,6 +17,7 @@ #include #include +#include namespace libcamera { @@ -163,6 +164,10 @@ struct IPAFrameContext : public FrameContext { uint32_t exposure; double gain; } sensor; + + struct { + Matrix ccm; + } ccm; }; struct IPAContext {