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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2024, Ideas On Board Oy
*
* lsc.h - Mali-C55 Lens shading correction algorithm
*/
#include <map>
#include <tuple>
#include "algorithm.h"
namespace libcamera {
namespace ipa::mali_c55::algorithms {
class Lsc : public Algorithm
{
public:
Lsc() = default;
~Lsc() = default;
int init(IPAContext &context, const YamlObject &tuningData) override;
void prepare(IPAContext &context, const uint32_t frame,
IPAFrameContext &frameContext,
mali_c55_params_buffer *params) override;
private:
static constexpr unsigned int kRedOffset = 0;
static constexpr unsigned int kGreenOffset = 1024;
static constexpr unsigned int kBlueOffset = 2048;
size_t fillConfigParamsBlock(mali_c55_params_block block) const;
size_t fillSelectionParamsBlock(mali_c55_params_block block,
uint8_t bank, uint8_t alpha) const;
std::tuple<uint8_t, uint8_t> findBankAndAlpha(uint32_t ct) const;
std::vector<uint32_t> mesh_ = std::vector<uint32_t>(3072);
std::vector<uint32_t> colourTemperatures_;
uint32_t meshScale_;
uint32_t meshSize_;
};
} /* namespace ipa::mali_c55::algorithms */
} /* namespace libcamera */
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