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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <functional>
#include <mutex>
#include <unordered_map>
#include "common/common_types.h"
#include "common/input.h"
#include "common/param_package.h"
#include "common/uuid.h"
#include "input_common/main.h"
// Pad Identifier of data source
struct PadIdentifier {
Common::UUID guid{};
std::size_t port{};
std::size_t pad{};
friend constexpr bool operator==(const PadIdentifier&, const PadIdentifier&) = default;
};
// Basic motion data containing data from the sensors and a timestamp in microseconds
struct BasicMotion {
float gyro_x{};
float gyro_y{};
float gyro_z{};
float accel_x{};
float accel_y{};
float accel_z{};
u64 delta_timestamp{};
};
// Types of input that are stored in the engine
enum class EngineInputType {
None,
Button,
HatButton,
Analog,
Motion,
Battery,
};
namespace std {
// Hash used to create lists from PadIdentifier data
template <>
struct hash<PadIdentifier> {
size_t operator()(const PadIdentifier& pad_id) const noexcept {
u64 hash_value = pad_id.guid.Hash();
hash_value ^= (static_cast<u64>(pad_id.port) << 32);
hash_value ^= static_cast<u64>(pad_id.pad);
return static_cast<size_t>(hash_value);
}
};
} // namespace std
namespace InputCommon {
// Data from the engine and device needed for creating a ParamPackage
struct MappingData {
std::string engine{};
PadIdentifier pad{};
EngineInputType type{};
int index{};
bool button_value{};
std::string hat_name{};
f32 axis_value{};
BasicMotion motion_value{};
};
// Triggered if data changed on the controller
struct UpdateCallback {
std::function<void()> on_change;
};
// Triggered if data changed on the controller and the engine is on configuring mode
struct MappingCallback {
std::function<void(const MappingData&)> on_data;
};
// Input Identifier of data source
struct InputIdentifier {
PadIdentifier identifier;
EngineInputType type;
int index;
UpdateCallback callback;
};
class InputEngine {
public:
explicit InputEngine(std::string input_engine_) : input_engine{std::move(input_engine_)} {}
virtual ~InputEngine() = default;
// Enable configuring mode for mapping
void BeginConfiguration();
// Disable configuring mode for mapping
void EndConfiguration();
// Sets a led pattern for a controller
virtual void SetLeds([[maybe_unused]] const PadIdentifier& identifier,
[[maybe_unused]] const Common::Input::LedStatus& led_status) {}
// Sets rumble to a controller
virtual Common::Input::VibrationError SetRumble(
[[maybe_unused]] const PadIdentifier& identifier,
[[maybe_unused]] const Common::Input::VibrationStatus& vibration) {
return Common::Input::VibrationError::NotSupported;
}
// Sets polling mode to a controller
virtual Common::Input::PollingError SetPollingMode(
[[maybe_unused]] const PadIdentifier& identifier,
[[maybe_unused]] const Common::Input::PollingMode vibration) {
return Common::Input::PollingError::NotSupported;
}
// Returns the engine name
[[nodiscard]] const std::string& GetEngineName() const;
/// Used for automapping features
virtual std::vector<Common::ParamPackage> GetInputDevices() const {
return {};
}
/// Retrieves the button mappings for the given device
virtual ButtonMapping GetButtonMappingForDevice(
[[maybe_unused]] const Common::ParamPackage& params) {
return {};
}
/// Retrieves the analog mappings for the given device
virtual AnalogMapping GetAnalogMappingForDevice(
[[maybe_unused]] const Common::ParamPackage& params) {
return {};
}
/// Retrieves the motion mappings for the given device
virtual MotionMapping GetMotionMappingForDevice(
[[maybe_unused]] const Common::ParamPackage& params) {
return {};
}
/// Retrieves the name of the given input.
virtual Common::Input::ButtonNames GetUIName(
[[maybe_unused]] const Common::ParamPackage& params) const {
return Common::Input::ButtonNames::Engine;
}
/// Retrieves the index number of the given hat button direction
virtual u8 GetHatButtonId([[maybe_unused]] const std::string& direction_name) const {
return 0;
}
/// Returns true if axis of a stick aren't mapped in the correct direction
virtual bool IsStickInverted([[maybe_unused]] const Common::ParamPackage& params) {
return false;
}
void PreSetController(const PadIdentifier& identifier);
void PreSetButton(const PadIdentifier& identifier, int button);
void PreSetHatButton(const PadIdentifier& identifier, int button);
void PreSetAxis(const PadIdentifier& identifier, int axis);
void PreSetMotion(const PadIdentifier& identifier, int motion);
void ResetButtonState();
void ResetAnalogState();
bool GetButton(const PadIdentifier& identifier, int button) const;
bool GetHatButton(const PadIdentifier& identifier, int button, u8 direction) const;
f32 GetAxis(const PadIdentifier& identifier, int axis) const;
Common::Input::BatteryLevel GetBattery(const PadIdentifier& identifier) const;
BasicMotion GetMotion(const PadIdentifier& identifier, int motion) const;
int SetCallback(InputIdentifier input_identifier);
void SetMappingCallback(MappingCallback callback);
void DeleteCallback(int key);
protected:
void SetButton(const PadIdentifier& identifier, int button, bool value);
void SetHatButton(const PadIdentifier& identifier, int button, u8 value);
void SetAxis(const PadIdentifier& identifier, int axis, f32 value);
void SetBattery(const PadIdentifier& identifier, Common::Input::BatteryLevel value);
void SetMotion(const PadIdentifier& identifier, int motion, const BasicMotion& value);
virtual std::string GetHatButtonName([[maybe_unused]] u8 direction_value) const {
return "Unknown";
}
private:
struct ControllerData {
std::unordered_map<int, bool> buttons;
std::unordered_map<int, u8> hat_buttons;
std::unordered_map<int, float> axes;
std::unordered_map<int, BasicMotion> motions;
Common::Input::BatteryLevel battery{};
};
void TriggerOnButtonChange(const PadIdentifier& identifier, int button, bool value);
void TriggerOnHatButtonChange(const PadIdentifier& identifier, int button, u8 value);
void TriggerOnAxisChange(const PadIdentifier& identifier, int axis, f32 value);
void TriggerOnBatteryChange(const PadIdentifier& identifier, Common::Input::BatteryLevel value);
void TriggerOnMotionChange(const PadIdentifier& identifier, int motion,
const BasicMotion& value);
bool IsInputIdentifierEqual(const InputIdentifier& input_identifier,
const PadIdentifier& identifier, EngineInputType type,
int index) const;
mutable std::mutex mutex;
mutable std::mutex mutex_callback;
bool configuring{false};
const std::string input_engine;
int last_callback_key = 0;
std::unordered_map<PadIdentifier, ControllerData> controller_list;
std::unordered_map<int, InputIdentifier> callback_list;
MappingCallback mapping_callback;
};
} // namespace InputCommon
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