// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include <list>
#include <mutex>
#include <utility>
#include "common/assert.h"
#include "common/threadsafe_queue.h"
#include "input_common/mouse/mouse_input.h"
#include "input_common/mouse/mouse_poller.h"
namespace InputCommon {
class MouseButton final : public Input::ButtonDevice {
public:
explicit MouseButton(u32 button_, const MouseInput::Mouse* mouse_input_)
: button(button_), mouse_input(mouse_input_) {}
bool GetStatus() const override {
return mouse_input->GetMouseState(button).pressed;
}
private:
const u32 button;
const MouseInput::Mouse* mouse_input;
};
MouseButtonFactory::MouseButtonFactory(std::shared_ptr<MouseInput::Mouse> mouse_input_)
: mouse_input(std::move(mouse_input_)) {}
std::unique_ptr<Input::ButtonDevice> MouseButtonFactory::Create(
const Common::ParamPackage& params) {
const auto button_id = params.Get("button", 0);
return std::make_unique<MouseButton>(button_id, mouse_input.get());
}
Common::ParamPackage MouseButtonFactory::GetNextInput() const {
MouseInput::MouseStatus pad;
Common::ParamPackage params;
auto& queue = mouse_input->GetMouseQueue();
while (queue.Pop(pad)) {
// This while loop will break on the earliest detected button
if (pad.button != MouseInput::MouseButton::Undefined) {
params.Set("engine", "mouse");
params.Set("button", static_cast<u16>(pad.button));
return params;
}
}
return params;
}
void MouseButtonFactory::BeginConfiguration() {
polling = true;
mouse_input->BeginConfiguration();
}
void MouseButtonFactory::EndConfiguration() {
polling = false;
mouse_input->EndConfiguration();
}
class MouseAnalog final : public Input::AnalogDevice {
public:
explicit MouseAnalog(u32 port_, u32 axis_x_, u32 axis_y_, float deadzone_, float range_,
const MouseInput::Mouse* mouse_input_)
: button(port_), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_), range(range_),
mouse_input(mouse_input_) {}
float GetAxis(u32 axis) const {
std::lock_guard lock{mutex};
const auto axis_value =
static_cast<float>(mouse_input->GetMouseState(button).axis.at(axis));
return axis_value / (100.0f * range);
}
std::pair<float, float> GetAnalog(u32 analog_axis_x, u32 analog_axis_y) const {
float x = GetAxis(analog_axis_x);
float y = GetAxis(analog_axis_y);
// Make sure the coordinates are in the unit circle,
// otherwise normalize it.
float r = x * x + y * y;
if (r > 1.0f) {
r = std::sqrt(r);
x /= r;
y /= r;
}
return {x, y};
}
std::tuple<float, float> GetStatus() const override {
const auto [x, y] = GetAnalog(axis_x, axis_y);
const float r = std::sqrt((x * x) + (y * y));
if (r > deadzone) {
return {x / r * (r - deadzone) / (1 - deadzone),
y / r * (r - deadzone) / (1 - deadzone)};
}
return {0.0f, 0.0f};
}
private:
const u32 button;
const u32 axis_x;
const u32 axis_y;
const float deadzone;
const float range;
const MouseInput::Mouse* mouse_input;
mutable std::mutex mutex;
};
/// An analog device factory that creates analog devices from GC Adapter
MouseAnalogFactory::MouseAnalogFactory(std::shared_ptr<MouseInput::Mouse> mouse_input_)
: mouse_input(std::move(mouse_input_)) {}
/**
* Creates analog device from joystick axes
* @param params contains parameters for creating the device:
* - "port": the nth gcpad on the adapter
* - "axis_x": the index of the axis to be bind as x-axis
* - "axis_y": the index of the axis to be bind as y-axis
*/
std::unique_ptr<Input::AnalogDevice> MouseAnalogFactory::Create(
const Common::ParamPackage& params) {
const auto port = static_cast<u32>(params.Get("port", 0));
const auto axis_x = static_cast<u32>(params.Get("axis_x", 0));
const auto axis_y = static_cast<u32>(params.Get("axis_y", 1));
const auto deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, 1.0f);
const auto range = std::clamp(params.Get("range", 1.0f), 0.50f, 1.50f);
return std::make_unique<MouseAnalog>(port, axis_x, axis_y, deadzone, range, mouse_input.get());
}
void MouseAnalogFactory::BeginConfiguration() {
polling = true;
mouse_input->BeginConfiguration();
}
void MouseAnalogFactory::EndConfiguration() {
polling = false;
mouse_input->EndConfiguration();
}
Common::ParamPackage MouseAnalogFactory::GetNextInput() const {
MouseInput::MouseStatus pad;
Common::ParamPackage params;
auto& queue = mouse_input->GetMouseQueue();
while (queue.Pop(pad)) {
// This while loop will break on the earliest detected button
if (pad.button != MouseInput::MouseButton::Undefined) {
params.Set("engine", "mouse");
params.Set("port", static_cast<u16>(pad.button));
params.Set("axis_x", 0);
params.Set("axis_y", 1);
return params;
}
}
return params;
}
class MouseMotion final : public Input::MotionDevice {
public:
explicit MouseMotion(u32 button_, const MouseInput::Mouse* mouse_input_)
: button(button_), mouse_input(mouse_input_) {}
Input::MotionStatus GetStatus() const override {
return mouse_input->GetMouseState(button).motion;
}
private:
const u32 button;
const MouseInput::Mouse* mouse_input;
};
MouseMotionFactory::MouseMotionFactory(std::shared_ptr<MouseInput::Mouse> mouse_input_)
: mouse_input(std::move(mouse_input_)) {}
std::unique_ptr<Input::MotionDevice> MouseMotionFactory::Create(
const Common::ParamPackage& params) {
const auto button_id = params.Get("button", 0);
return std::make_unique<MouseMotion>(button_id, mouse_input.get());
}
Common::ParamPackage MouseMotionFactory::GetNextInput() const {
MouseInput::MouseStatus pad;
Common::ParamPackage params;
auto& queue = mouse_input->GetMouseQueue();
while (queue.Pop(pad)) {
// This while loop will break on the earliest detected button
if (pad.button != MouseInput::MouseButton::Undefined) {
params.Set("engine", "mouse");
params.Set("button", static_cast<u16>(pad.button));
return params;
}
}
return params;
}
void MouseMotionFactory::BeginConfiguration() {
polling = true;
mouse_input->BeginConfiguration();
}
void MouseMotionFactory::EndConfiguration() {
polling = false;
mouse_input->EndConfiguration();
}
class MouseTouch final : public Input::TouchDevice {
public:
explicit MouseTouch(u32 button_, const MouseInput::Mouse* mouse_input_)
: button(button_), mouse_input(mouse_input_) {}
Input::TouchStatus GetStatus() const override {
return mouse_input->GetMouseState(button).touch;
}
private:
const u32 button;
const MouseInput::Mouse* mouse_input;
};
MouseTouchFactory::MouseTouchFactory(std::shared_ptr<MouseInput::Mouse> mouse_input_)
: mouse_input(std::move(mouse_input_)) {}
std::unique_ptr<Input::TouchDevice> MouseTouchFactory::Create(const Common::ParamPackage& params) {
const auto button_id = params.Get("button", 0);
return std::make_unique<MouseTouch>(button_id, mouse_input.get());
}
Common::ParamPackage MouseTouchFactory::GetNextInput() const {
MouseInput::MouseStatus pad;
Common::ParamPackage params;
auto& queue = mouse_input->GetMouseQueue();
while (queue.Pop(pad)) {
// This while loop will break on the earliest detected button
if (pad.button != MouseInput::MouseButton::Undefined) {
params.Set("engine", "mouse");
params.Set("button", static_cast<u16>(pad.button));
return params;
}
}
return params;
}
void MouseTouchFactory::BeginConfiguration() {
polling = true;
mouse_input->BeginConfiguration();
}
void MouseTouchFactory::EndConfiguration() {
polling = false;
mouse_input->EndConfiguration();
}
} // namespace InputCommon