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// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <string>
#include <vector>
namespace Common {
class ParamPackage;
}
namespace InputCommon {
/// Initializes and registers all built-in input device factories.
void Init();
/// Deregisters all built-in input device factories and shuts them down.
void Shutdown();
class Keyboard;
/// Gets the keyboard button device factory.
Keyboard* GetKeyboard();
class MotionEmu;
/// Gets the motion emulation factory.
MotionEmu* GetMotionEmu();
/// Generates a serialized param package for creating a keyboard button device
std::string GenerateKeyboardParam(int key_code);
/// Generates a serialized param package for creating an analog device taking input from keyboard
std::string GenerateAnalogParamFromKeys(int key_up, int key_down, int key_left, int key_right,
int key_modifier, float modifier_scale);
namespace Polling {
enum class DeviceType { Button, Analog };
/**
* A class that can be used to get inputs from an input device like controllers without having to
* poll the device's status yourself
*/
class DevicePoller {
public:
virtual ~DevicePoller() = default;
/// Setup and start polling for inputs, should be called before GetNextInput
virtual void Start() = 0;
/// Stop polling
virtual void Stop() = 0;
/**
* Every call to this function returns the next input recorded since calling Start
* @return A ParamPackage of the recorded input, which can be used to create an InputDevice.
* If there has been no input, the package is empty
*/
virtual Common::ParamPackage GetNextInput() = 0;
};
// Get all DevicePoller from all backends for a specific device type
std::vector<std::unique_ptr<DevicePoller>> GetPollers(DeviceType type);
} // namespace Polling
} // namespace InputCommon
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