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d22c0020ef
To prepare for dynamic instantiation of algorithms from the tuning file, register the algorithms with the Module class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
59 lines
1.6 KiB
C++
59 lines
1.6 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2021-2022, Ideas On Board
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*
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* blc.cpp - RkISP1 Black Level Correction control
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*/
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#include "blc.h"
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/**
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* \file blc.h
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*/
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namespace libcamera {
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namespace ipa::rkisp1::algorithms {
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/**
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* \class BlackLevelCorrection
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* \brief RkISP1 Black Level Correction control
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*
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* The pixels output by the camera normally include a black level, because
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* sensors do not always report a signal level of '0' for black. Pixels at or
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* below this level should be considered black. To achieve that, the RkISP BLC
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* algorithm subtracts a configurable offset from all pixels.
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*
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* The black level can be measured at runtime from an optical dark region of the
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* camera sensor, or measured during the camera tuning process. The first option
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* isn't currently supported.
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*/
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/**
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* \copydoc libcamera::ipa::Algorithm::prepare
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*/
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void BlackLevelCorrection::prepare(IPAContext &context,
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rkisp1_params_cfg *params)
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{
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if (context.frameContext.frameCount > 0)
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return;
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/*
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* Substract fixed values taken from imx219 tuning file.
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* \todo Use a configuration file for it ?
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*/
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params->others.bls_config.enable_auto = 0;
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params->others.bls_config.fixed_val.r = 256;
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params->others.bls_config.fixed_val.gr = 256;
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params->others.bls_config.fixed_val.gb = 256;
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params->others.bls_config.fixed_val.b = 256;
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params->module_en_update |= RKISP1_CIF_ISP_MODULE_BLS;
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params->module_ens |= RKISP1_CIF_ISP_MODULE_BLS;
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params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_BLS;
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}
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REGISTER_IPA_ALGORITHM(BlackLevelCorrection, "BlackLevelCorrection")
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} /* namespace ipa::rkisp1::algorithms */
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} /* namespace libcamera */
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