/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2021-2022, Ideas On Board * * cproc.cpp - RkISP1 Color Processing control */ #include "cproc.h" #include <algorithm> #include <cmath> #include <libcamera/base/log.h> #include <libcamera/control_ids.h> /** * \file cproc.h */ namespace libcamera { namespace ipa::rkisp1::algorithms { /** * \class ColorProcessing * \brief RkISP1 Color Processing control * * The ColorProcessing algorithm is responsible for applying brightness, * contrast and saturation corrections. The values are directly provided * through requests by the corresponding controls. */ LOG_DEFINE_CATEGORY(RkISP1CProc) /** * \copydoc libcamera::ipa::Algorithm::queueRequest */ void ColorProcessing::queueRequest(IPAContext &context, [[maybe_unused]] const uint32_t frame, const ControlList &controls) { auto &cproc = context.frameContext.cproc; const auto &brightness = controls.get(controls::Brightness); if (brightness) { cproc.brightness = std::clamp<int>(std::lround(*brightness * 128), -128, 127); cproc.updateParams = true; LOG(RkISP1CProc, Debug) << "Set brightness to " << *brightness; } const auto &contrast = controls.get(controls::Contrast); if (contrast) { cproc.contrast = std::clamp<int>(std::lround(*contrast * 128), 0, 255); cproc.updateParams = true; LOG(RkISP1CProc, Debug) << "Set contrast to " << *contrast; } const auto saturation = controls.get(controls::Saturation); if (saturation) { cproc.saturation = std::clamp<int>(std::lround(*saturation * 128), 0, 255); cproc.updateParams = true; LOG(RkISP1CProc, Debug) << "Set saturation to " << *saturation; } } /** * \copydoc libcamera::ipa::Algorithm::prepare */ void ColorProcessing::prepare(IPAContext &context, rkisp1_params_cfg *params) { auto &cproc = context.frameContext.cproc; /* Check if the algorithm configuration has been updated. */ if (!cproc.updateParams) return; cproc.updateParams = false; params->others.cproc_config.brightness = cproc.brightness; params->others.cproc_config.contrast = cproc.contrast; params->others.cproc_config.sat = cproc.saturation; params->module_en_update |= RKISP1_CIF_ISP_MODULE_CPROC; params->module_ens |= RKISP1_CIF_ISP_MODULE_CPROC; params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_CPROC; } REGISTER_IPA_ALGORITHM(ColorProcessing, "ColorProcessing") } /* namespace ipa::rkisp1::algorithms */ } /* namespace libcamera */