/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2019, Google Inc. * * signal.cpp - Signal & slot implementation */ namespace libcamera { /** * \class Signal * \brief Generic signal and slot communication mechanism * * Signals and slots are a language construct aimed at communication between * objects through the observer pattern without the need for boilerplate code. * See http://doc.qt.io/qt-5/signalsandslots.html for more information. * * Signals model events that can be observed from objects unrelated to the event * source. Slots are functions that are called in response to a signal. Signals * can be connected to and disconnected from slots dynamically at runtime. When * a signal is emitted, all connected slots are called sequentially in the order * they have been connected. * * Signals are defined with zero, one or more typed parameters. They are emitted * with a value for each of the parameters, and those values are passed to the * connected slots. * * Slots are normal static or class member functions. In order to be connected * to a signal, their signature must match the signal type (taking the same * arguments as the signal and returning void). * * Connecting a signal to a slot results in the slot being called with the * arguments passed to the emit() function when the signal is emitted. Multiple * slots can be connected to the same signal, and multiple signals can connected * to the same slot. Duplicate connections between a signal and a slot are * allowed and result in the slot being called multiple times for the same * signal emission. */ /** * \fn Signal::connect(T *object, void(T::*func)(Args...)) * \brief Connect the signal to a member function slot * \param object The slot object pointer * \param func The slot member function */ /** * \fn Signal::connect(void(*func)(Args...)) * \brief Connect the signal to a static function slot * \param func The slot static function */ /** * \fn Signal::disconnect() * \brief Disconnect the signal from all slots */ /** * \fn Signal::disconnect(T *object) * \brief Disconnect the signal from all slots of the \a object * \param object The object pointer whose slots to disconnect */ /** * \fn Signal::disconnect(T *object, void(T::*func)(Args...)) * \brief Disconnect the signal from the \a object slot member function \a func * \param object The object pointer whose slots to disconnect * \param func The slot member function to disconnect */ /** * \fn Signal::disconnect(void(*func)(Args...)) * \brief Disconnect the signal from the slot static function \a func * \param func The slot static function to disconnect */ /** * \fn Signal::emit(Args... args) * \brief Emit the signal and call all connected slots * \param args The arguments passed to the connected slots * * Emitting a signal calls all connected slots synchronously and sequentially in * the order the slots have been connected. The arguments passed to the emit() * function are passed to the slot functions unchanged. If a slot modifies one * of the arguments (when passed by pointer or reference), the modification is * thus visible to all subsequently called slots. */ } /* namespace libcamera */ 4e35d79602b003ff27'>plain) 
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/* SPDX-License-Identifier: BSD-2-Clause */
/*
 * Copyright (C) 2023, Raspberry Pi Ltd
 *
 * HDR control algorithm interface
 */
#pragma once

#include <vector>

#include "algorithm.h"

namespace RPiController {

class HdrAlgorithm : public Algorithm
{
public:
	HdrAlgorithm(Controller *controller)
		: Algorithm(controller) {}
	/* An HDR algorithm must provide the following: */
	virtual int setMode(std::string const &modeName) = 0;
	virtual std::vector<unsigned int> getChannels() const = 0;
};

} /* namespace RPiController */
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