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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2023, Ideas on Board Oy
*
* agc.h - Mali C55 AGC/AEC mean-based control algorithm
*/
#pragma once
#include <libcamera/base/utils.h>
#include "libcamera/internal/bayer_format.h"
#include "libipa/agc_mean_luminance.h"
#include "libipa/histogram.h"
#include "algorithm.h"
#include "ipa_context.h"
namespace libcamera {
namespace ipa::mali_c55::algorithms {
class AgcStatistics
{
public:
AgcStatistics()
{
}
int setBayerOrderIndices(BayerFormat::Order bayerOrder);
uint32_t decodeBinValue(uint16_t binVal);
void parseStatistics(const mali_c55_stats_buffer *stats);
Histogram rHist;
Histogram gHist;
Histogram bHist;
Histogram yHist;
private:
unsigned int rIndex_;
unsigned int grIndex_;
unsigned int gbIndex_;
unsigned int bIndex_;
};
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,
mali_c55_params_buffer *params) override;
void process(IPAContext &context, const uint32_t frame,
IPAFrameContext &frameContext,
const mali_c55_stats_buffer *stats,
ControlList &metadata) override;
private:
double estimateLuminance(const double gain) const override;
size_t fillGainParamBlock(IPAContext &context,
IPAFrameContext &frameContext,
mali_c55_params_block block);
size_t fillParamsBuffer(mali_c55_params_block block,
enum mali_c55_param_block_type type);
size_t fillWeightsArrayBuffer(mali_c55_params_block block,
enum mali_c55_param_block_type type);
AgcStatistics statistics_;
};
} /* namespace ipa::mali_c55::algorithms */
} /* namespace libcamera */
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