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// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included
#include <algorithm>
#include <fmt/format.h>
#include "core/hid/emulated_devices.h"
#include "core/hid/input_converter.h"
namespace Core::HID {
EmulatedDevices::EmulatedDevices() = default;
EmulatedDevices::~EmulatedDevices() = default;
void EmulatedDevices::ReloadFromSettings() {
const auto& mouse = Settings::values.mouse_buttons;
for (std::size_t index = 0; index < mouse.size(); ++index) {
mouse_button_params[index] = Common::ParamPackage(mouse[index]);
}
ReloadInput();
}
void EmulatedDevices::ReloadInput() {
std::transform(mouse_button_params.begin() + Settings::NativeMouseButton::MOUSE_HID_BEGIN,
mouse_button_params.begin() + Settings::NativeMouseButton::MOUSE_HID_END,
mouse_button_devices.begin(),
Common::Input::CreateDevice<Common::Input::InputDevice>);
std::transform(Settings::values.keyboard_keys.begin(), Settings::values.keyboard_keys.end(),
keyboard_devices.begin(),
Common::Input::CreateDeviceFromString<Common::Input::InputDevice>);
std::transform(Settings::values.keyboard_mods.begin(), Settings::values.keyboard_mods.end(),
keyboard_modifier_devices.begin(),
Common::Input::CreateDeviceFromString<Common::Input::InputDevice>);
for (std::size_t index = 0; index < mouse_button_devices.size(); ++index) {
if (!mouse_button_devices[index]) {
continue;
}
Common::Input::InputCallback button_callback{
[this, index](Common::Input::CallbackStatus callback) {
SetMouseButton(callback, index);
}};
mouse_button_devices[index]->SetCallback(button_callback);
}
for (std::size_t index = 0; index < keyboard_devices.size(); ++index) {
if (!keyboard_devices[index]) {
continue;
}
Common::Input::InputCallback button_callback{
[this, index](Common::Input::CallbackStatus callback) {
SetKeyboardButton(callback, index);
}};
keyboard_devices[index]->SetCallback(button_callback);
}
for (std::size_t index = 0; index < keyboard_modifier_devices.size(); ++index) {
if (!keyboard_modifier_devices[index]) {
continue;
}
Common::Input::InputCallback button_callback{
[this, index](Common::Input::CallbackStatus callback) {
SetKeyboardModifier(callback, index);
}};
keyboard_modifier_devices[index]->SetCallback(button_callback);
}
}
void EmulatedDevices::UnloadInput() {
for (auto& button : mouse_button_devices) {
button.reset();
}
for (auto& button : keyboard_devices) {
button.reset();
}
for (auto& button : keyboard_modifier_devices) {
button.reset();
}
}
void EmulatedDevices::EnableConfiguration() {
is_configuring = true;
SaveCurrentConfig();
}
void EmulatedDevices::DisableConfiguration() {
is_configuring = false;
}
bool EmulatedDevices::IsConfiguring() const {
return is_configuring;
}
void EmulatedDevices::SaveCurrentConfig() {
if (!is_configuring) {
return;
}
auto& mouse = Settings::values.mouse_buttons;
for (std::size_t index = 0; index < mouse.size(); ++index) {
mouse[index] = mouse_button_params[index].Serialize();
}
}
void EmulatedDevices::RestoreConfig() {
if (!is_configuring) {
return;
}
ReloadFromSettings();
}
Common::ParamPackage EmulatedDevices::GetMouseButtonParam(std::size_t index) const {
if (index >= mouse_button_params.size()) {
return {};
}
return mouse_button_params[index];
}
void EmulatedDevices::SetMouseButtonParam(std::size_t index, Common::ParamPackage param) {
if (index >= mouse_button_params.size()) {
return;
}
mouse_button_params[index] = param;
ReloadInput();
}
void EmulatedDevices::SetKeyboardButton(Common::Input::CallbackStatus callback, std::size_t index) {
if (index >= device_status.keyboard_values.size()) {
return;
}
std::lock_guard lock{mutex};
bool value_changed = false;
const auto new_status = TransformToButton(callback);
auto& current_status = device_status.keyboard_values[index];
current_status.toggle = new_status.toggle;
// Update button status with current status
if (!current_status.toggle) {
current_status.locked = false;
if (current_status.value != new_status.value) {
current_status.value = new_status.value;
value_changed = true;
}
} else {
// Toggle button and lock status
if (new_status.value && !current_status.locked) {
current_status.locked = true;
current_status.value = !current_status.value;
value_changed = true;
}
// Unlock button, ready for next press
if (!new_status.value && current_status.locked) {
current_status.locked = false;
}
}
if (!value_changed) {
return;
}
if (is_configuring) {
TriggerOnChange(DeviceTriggerType::Keyboard);
return;
}
UpdateKey(index, current_status.value);
TriggerOnChange(DeviceTriggerType::Keyboard);
}
void EmulatedDevices::UpdateKey(std::size_t key_index, bool status) {
constexpr u8 KEYS_PER_BYTE = 8;
auto& entry = device_status.keyboard_state.key[key_index / KEYS_PER_BYTE];
const u8 mask = static_cast<u8>(1 << (key_index % KEYS_PER_BYTE));
if (status) {
entry = entry | mask;
} else {
entry = static_cast<u8>(entry & ~mask);
}
}
void EmulatedDevices::SetKeyboardModifier(Common::Input::CallbackStatus callback,
std::size_t index) {
if (index >= device_status.keyboard_moddifier_values.size()) {
return;
}
std::lock_guard lock{mutex};
bool value_changed = false;
const auto new_status = TransformToButton(callback);
auto& current_status = device_status.keyboard_moddifier_values[index];
current_status.toggle = new_status.toggle;
// Update button status with current
if (!current_status.toggle) {
current_status.locked = false;
if (current_status.value != new_status.value) {
current_status.value = new_status.value;
value_changed = true;
}
} else {
// Toggle button and lock status
if (new_status.value && !current_status.locked) {
current_status.locked = true;
current_status.value = !current_status.value;
value_changed = true;
}
// Unlock button ready for next press
if (!new_status.value && current_status.locked) {
current_status.locked = false;
}
}
if (!value_changed) {
return;
}
if (is_configuring) {
TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
return;
}
switch (index) {
case Settings::NativeKeyboard::LeftControl:
case Settings::NativeKeyboard::RightControl:
device_status.keyboard_moddifier_state.control.Assign(current_status.value);
break;
case Settings::NativeKeyboard::LeftShift:
case Settings::NativeKeyboard::RightShift:
device_status.keyboard_moddifier_state.shift.Assign(current_status.value);
break;
case Settings::NativeKeyboard::LeftAlt:
device_status.keyboard_moddifier_state.left_alt.Assign(current_status.value);
break;
case Settings::NativeKeyboard::RightAlt:
device_status.keyboard_moddifier_state.right_alt.Assign(current_status.value);
break;
case Settings::NativeKeyboard::CapsLock:
device_status.keyboard_moddifier_state.caps_lock.Assign(current_status.value);
break;
case Settings::NativeKeyboard::ScrollLock:
device_status.keyboard_moddifier_state.scroll_lock.Assign(current_status.value);
break;
case Settings::NativeKeyboard::NumLock:
device_status.keyboard_moddifier_state.num_lock.Assign(current_status.value);
break;
}
TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
}
void EmulatedDevices::SetMouseButton(Common::Input::CallbackStatus callback, std::size_t index) {
if (index >= device_status.mouse_button_values.size()) {
return;
}
std::lock_guard lock{mutex};
bool value_changed = false;
const auto new_status = TransformToButton(callback);
auto& current_status = device_status.mouse_button_values[index];
current_status.toggle = new_status.toggle;
// Update button status with current
if (!current_status.toggle) {
current_status.locked = false;
if (current_status.value != new_status.value) {
current_status.value = new_status.value;
value_changed = true;
}
} else {
// Toggle button and lock status
if (new_status.value && !current_status.locked) {
current_status.locked = true;
current_status.value = !current_status.value;
value_changed = true;
}
// Unlock button ready for next press
if (!new_status.value && current_status.locked) {
current_status.locked = false;
}
}
if (!value_changed) {
return;
}
if (is_configuring) {
TriggerOnChange(DeviceTriggerType::Mouse);
return;
}
switch (index) {
case Settings::NativeMouseButton::Left:
device_status.mouse_button_state.left.Assign(current_status.value);
break;
case Settings::NativeMouseButton::Right:
device_status.mouse_button_state.right.Assign(current_status.value);
break;
case Settings::NativeMouseButton::Middle:
device_status.mouse_button_state.middle.Assign(current_status.value);
break;
case Settings::NativeMouseButton::Forward:
device_status.mouse_button_state.forward.Assign(current_status.value);
break;
case Settings::NativeMouseButton::Back:
device_status.mouse_button_state.back.Assign(current_status.value);
break;
}
TriggerOnChange(DeviceTriggerType::Mouse);
}
KeyboardValues EmulatedDevices::GetKeyboardValues() const {
return device_status.keyboard_values;
}
KeyboardModifierValues EmulatedDevices::GetKeyboardModdifierValues() const {
return device_status.keyboard_moddifier_values;
}
MouseButtonValues EmulatedDevices::GetMouseButtonsValues() const {
return device_status.mouse_button_values;
}
KeyboardKey EmulatedDevices::GetKeyboard() const {
return device_status.keyboard_state;
}
KeyboardModifier EmulatedDevices::GetKeyboardModifier() const {
return device_status.keyboard_moddifier_state;
}
MouseButton EmulatedDevices::GetMouseButtons() const {
return device_status.mouse_button_state;
}
MousePosition EmulatedDevices::GetMousePosition() const {
return device_status.mouse_position_state;
}
void EmulatedDevices::TriggerOnChange(DeviceTriggerType type) {
for (const auto& poller_pair : callback_list) {
const InterfaceUpdateCallback& poller = poller_pair.second;
if (poller.on_change) {
poller.on_change(type);
}
}
}
int EmulatedDevices::SetCallback(InterfaceUpdateCallback update_callback) {
std::lock_guard lock{mutex};
callback_list.insert_or_assign(last_callback_key, update_callback);
return last_callback_key++;
}
void EmulatedDevices::DeleteCallback(int key) {
std::lock_guard lock{mutex};
if (!callback_list.contains(key)) {
LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
return;
}
callback_list.erase(key);
}
} // namespace Core::HID
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