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generated by cgit v1.2.1 (git 2.18.0) at 2025-01-11 11:49:28 +0000
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/* SPDX-License-Identifier: BSD-2-Clause */
/*
 * Copyright (C) 2021, Raspberry Pi (Trading) Limited
 *
 * cam_helper_imx290.cpp - camera helper for imx290 sensor
 */

#include <math.h>

#include "cam_helper.hpp"

using namespace RPiController;

class CamHelperImx290 : public CamHelper
{
public:
	CamHelperImx290();
	uint32_t GainCode(double gain) const override;
	double Gain(uint32_t gain_code) const override;
	void GetDelays(int &exposure_delay, int &gain_delay,
		       int &vblank_delay) const override;
	unsigned int HideFramesModeSwitch() const override;

private:
	/*
	 * Smallest difference between the frame length and integration time,
	 * in units of lines.
	 */
	static constexpr int frameIntegrationDiff = 2;
};

CamHelperImx290::CamHelperImx290()
	: CamHelper({}, frameIntegrationDiff)
{
}

uint32_t CamHelperImx290::GainCode(double gain) const
{