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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2023 Raspberry Pi Ltd
*
* cac.cpp - Chromatic Aberration Correction algorithm
*/
#include "cac.h"
#include <libcamera/base/log.h>
#include "cac_status.h"
using namespace RPiController;
using namespace libcamera;
LOG_DEFINE_CATEGORY(RPiCac)
#define NAME "rpi.cac"
Cac::Cac(Controller *controller)
: Algorithm(controller)
{
}
char const *Cac::name() const
{
return NAME;
}
int Cac::read(const libcamera::YamlObject ¶ms)
{
arrayToSet(params["lut_rx"], config_.lutRx);
arrayToSet(params["lut_ry"], config_.lutRy);
arrayToSet(params["lut_bx"], config_.lutBx);
arrayToSet(params["lut_by"], config_.lutBy);
cacStatus_.lutRx = config_.lutRx;
cacStatus_.lutRy = config_.lutRy;
cacStatus_.lutBx = config_.lutBx;
cacStatus_.lutBy = config_.lutBy;
double strength = params["strength"].get<double>(1);
setStrength(config_.lutRx, cacStatus_.lutRx, strength);
setStrength(config_.lutBx, cacStatus_.lutBx, strength);
setStrength(config_.lutRy, cacStatus_.lutRy, strength);
setStrength(config_.lutBy, cacStatus_.lutBy, strength);
return 0;
}
void Cac::initialise()
{
}
void Cac::arrayToSet(const libcamera::YamlObject ¶ms, std::vector<double> &inputArray)
{
int num = 0;
const Size &size = getHardwareConfig().cacRegions;
inputArray.resize((size.width + 1) * (size.height + 1));
for (const auto &p : params.asList()) {
inputArray[num++] = p.get<double>(0);
}
}
void Cac::setStrength(std::vector<double> &inputArray, std::vector<double> &outputArray,
double strengthFactor)
{
int num = 0;
for (const auto &p : inputArray) {
outputArray[num++] = p * strengthFactor;
}
}
void Cac::prepare(Metadata *imageMetadata)
{
imageMetadata->set("cac.status", cacStatus_);
}
// Register algorithm with the system.
static Algorithm *Create(Controller *controller)
{
return (Algorithm *)new Cac(controller);
}
static RegisterAlgorithm reg(NAME, &Create);
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