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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2021-2022, Ideas On Board
*
* RkISP1 AGC/AEC mean-based control algorithm
*/
#pragma once
#include <linux/rkisp1-config.h>
#include <libcamera/base/span.h>
#include <libcamera/base/utils.h>
#include <libcamera/geometry.h>
#include "libipa/agc_mean_luminance.h"
#include "libipa/histogram.h"
#include "algorithm.h"
namespace libcamera {
namespace ipa::rkisp1::algorithms {
class Agc : public Algorithm, public AgcMeanLuminance
{
public:
Agc();
~Agc() = default;
int init(IPAContext &context, const YamlObject &tuningData) override;
int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override;
void queueRequest(IPAContext &context,
const uint32_t frame,
IPAFrameContext &frameContext,
const ControlList &controls) 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:
int parseMeteringModes(IPAContext &context, const YamlObject &tuningData);
uint8_t computeHistogramPredivider(Size &size,
enum rkisp1_cif_isp_histogram_mode mode);
void fillMetadata(IPAContext &context, IPAFrameContext &frameContext,
ControlList &metadata);
double estimateLuminance(double gain) const override;
Span<const uint8_t> expMeans_;
std::map<int32_t, std::vector<uint8_t>> meteringModes_;
};
} /* namespace ipa::rkisp1::algorithms */
} /* namespace libcamera */
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