/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2022, Theobroma Systems
 *
 * af.h - RkISP1 AF hill climbing based control algorithm
 */

#pragma once

#include <linux/rkisp1-config.h>

#include "libipa/algorithms/af_hill_climbing.h"
#include "module.h"

namespace libcamera::ipa::rkisp1::algorithms {

class Af : public ipa::common::algorithms::AfHillClimbing<Module>
{
public:
	Af() = default;
	~Af() = default;

	int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override;
	void prepare(IPAContext &context, rkisp1_params_cfg *params) override;
	void process(IPAContext &context, IPAFrameContext *frameCtx,
		     const rkisp1_stat_buffer *stats) override;

	void setMetering(controls::AfMeteringEnum metering) override;
	void setWindows(Span<const Rectangle> windows) override;

private:
	void updateCurrentWindow(const Rectangle &window);

	controls::AfMeteringEnum meteringMode_ = controls::AfMeteringAuto;
	Rectangle currentWindow_;
	Rectangle defaultWindow_;
	Rectangle userWindow_;
	bool updateAfwindow_ = false;

	static constexpr uint32_t kFLensWaitFrames = 2;
	static constexpr uint32_t kWindowWaitFrames = 1;
};

} /* namespace libcamera::ipa::rkisp1::algorithms */