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// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <functional>
#include <memory>
#include <mutex>
#include <optional>
#include <string>
#include <thread>
#include <tuple>
#include "common/common_types.h"
#include "common/param_package.h"
#include "common/thread.h"
#include "common/threadsafe_queue.h"
#include "common/vector_math.h"
#include "core/frontend/input.h"
#include "input_common/motion_input.h"
namespace InputCommon::CemuhookUDP {
class Socket;
namespace Response {
struct PadData;
struct PortInfo;
struct TouchPad;
struct Version;
} // namespace Response
enum class PadMotion {
GyroX,
GyroY,
GyroZ,
AccX,
AccY,
AccZ,
Undefined,
};
enum class PadTouch {
Click,
Undefined,
};
struct UDPPadStatus {
std::string host{"127.0.0.1"};
u16 port{26760};
std::size_t pad_index{};
PadMotion motion{PadMotion::Undefined};
f32 motion_value{0.0f};
};
struct DeviceStatus {
std::mutex update_mutex;
Input::MotionStatus motion_status;
std::tuple<float, float, bool> touch_status;
// calibration data for scaling the device's touch area to 3ds
struct CalibrationData {
u16 min_x{};
u16 min_y{};
u16 max_x{};
u16 max_y{};
};
std::optional<CalibrationData> touch_calibration;
};
class Client {
public:
// Initialize the UDP client capture and read sequence
Client();
// Close and release the client
~Client();
// Used for polling
void BeginConfiguration();
void EndConfiguration();
std::vector<Common::ParamPackage> GetInputDevices() const;
bool DeviceConnected(std::size_t pad) const;
void ReloadSockets();
Common::SPSCQueue<UDPPadStatus>& GetPadQueue();
const Common::SPSCQueue<UDPPadStatus>& GetPadQueue() const;
DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad);
const DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad) const;
Input::TouchStatus& GetTouchState();
const Input::TouchStatus& GetTouchState() const;
private:
struct PadData {
std::size_t pad_index{};
bool connected{};
DeviceStatus status;
u64 packet_sequence{};
// Realtime values
// motion is initalized with PID values for drift correction on joycons
InputCommon::MotionInput motion{0.3f, 0.005f, 0.0f};
std::chrono::time_point<std::chrono::steady_clock> last_update;
};
struct ClientConnection {
ClientConnection();
~ClientConnection();
std::string host{"127.0.0.1"};
u16 port{26760};
s8 active{-1};
std::unique_ptr<Socket> socket;
std::thread thread;
};
// For shutting down, clear all data, join all threads, release usb
void Reset();
// Translates configuration to client number
std::size_t GetClientNumber(std::string_view host, u16 port) const;
void OnVersion(Response::Version);
void OnPortInfo(Response::PortInfo);
void OnPadData(Response::PadData, std::size_t client);
void StartCommunication(std::size_t client, const std::string& host, u16 port);
void UpdateYuzuSettings(std::size_t client, std::size_t pad_index,
const Common::Vec3<float>& acc, const Common::Vec3<float>& gyro);
// Returns an unused finger id, if there is no fingers available std::nullopt will be
// returned
std::optional<std::size_t> GetUnusedFingerID() const;
// Merges and updates all touch inputs into the touch_status array
void UpdateTouchInput(Response::TouchPad& touch_pad, std::size_t client, std::size_t id);
bool configuring = false;
// Allocate clients for 8 udp servers
static constexpr std::size_t MAX_UDP_CLIENTS = 8;
static constexpr std::size_t PADS_PER_CLIENT = 4;
// Each client can have up 2 touch inputs
static constexpr std::size_t MAX_TOUCH_FINGERS = MAX_UDP_CLIENTS * 2;
std::array<PadData, MAX_UDP_CLIENTS * PADS_PER_CLIENT> pads{};
std::array<ClientConnection, MAX_UDP_CLIENTS> clients{};
Common::SPSCQueue<UDPPadStatus> pad_queue{};
Input::TouchStatus touch_status{};
std::array<std::size_t, MAX_TOUCH_FINGERS> finger_id{};
};
/// An async job allowing configuration of the touchpad calibration.
class CalibrationConfigurationJob {
public:
enum class Status {
Initialized,
Ready,
Stage1Completed,
Completed,
};
/**
* Constructs and starts the job with the specified parameter.
*
* @param status_callback Callback for job status updates
* @param data_callback Called when calibration data is ready
*/
explicit CalibrationConfigurationJob(const std::string& host, u16 port,
std::function<void(Status)> status_callback,
std::function<void(u16, u16, u16, u16)> data_callback);
~CalibrationConfigurationJob();
void Stop();
private:
Common::Event complete_event;
};
void TestCommunication(const std::string& host, u16 port,
const std::function<void()>& success_callback,
const std::function<void()>& failure_callback);
} // namespace InputCommon::CemuhookUDP
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