input: PC-style DualSense mouse/keyboard mapping (#213)

input: add mouse-to-right-stick mapping and sensitivity

Co-authored-by: nmzik <Nmzik@mail.ru>
This commit is contained in:
Rogelio J Gomes
2026-08-29 10:27:23 -03:00
committed by GitHub
parent 4e8e335b7b
commit a4fc58e908
7 changed files with 219 additions and 37 deletions
+120 -9
View File
@@ -1,18 +1,24 @@
#include "graphics/presentation/window/hostInput.h"
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_keyboard.h"
#include "SDL_keycode.h"
#include "SDL_mouse.h"
#include "SDL_timer.h"
#include "SDL_video.h"
#include "common/assert.h"
#include "common/emulatorConfig.h"
#include "common/logging/log.h"
#include "libs/controller.h"
#include <algorithm>
#include <array>
#include <cmath>
#include <cstddef>
#include <cstdlib>
#include <string>
#include <string_view>
#include <utility>
namespace Libs::Graphics {
@@ -60,6 +66,17 @@ struct Binding {
std::size_t control = INVALID_CONTROL;
};
constexpr int MOUSE_POLL_INTERVAL_MS = 33;
constexpr std::string_view MOUSE_SENSITIVITY = "MouseSensitivity=";
struct MouseJoystickState {
bool enabled = false;
bool output = false;
uint64_t next_poll = 0;
};
MouseJoystickState g_mouse;
std::size_t ControlFromName(std::string_view name) {
const auto info = std::find_if(CONTROL_INFO.begin(), CONTROL_INFO.end(),
[name](const auto& item) { return item.name == name; });
@@ -103,10 +120,17 @@ bool Conflicts(const Binding& first, const Binding& second) {
class InputMap {
public:
InputMap(): m_custom(!Config::GetKeymap().empty()) {
InputMap() {
for (const auto& value: Config::GetKeymap()) {
const std::string_view entry = value;
const auto split = entry.find('=');
if (entry.starts_with(MOUSE_SENSITIVITY)) {
const float sensitivity =
std::strtof(value.c_str() + MOUSE_SENSITIVITY.size(), nullptr);
m_mouse_sensitivity =
std::clamp(std::isfinite(sensitivity) ? sensitivity : 1.0f, 0.1f, 5.0f);
continue;
}
const auto split = entry.find('=');
Binding binding;
if (split != std::string_view::npos) {
@@ -118,9 +142,9 @@ public:
}
}
const bool reserved =
binding.key == SDLK_ESCAPE || binding.key == SDLK_SPACE || binding.key == SDLK_F1 ||
binding.key == SDLK_F11;
const bool reserved = binding.key == SDLK_ESCAPE || binding.key == SDLK_SPACE ||
binding.key == SDLK_F1 || binding.key == SDLK_F7 ||
binding.key == SDLK_F11;
if (binding.control == INVALID_CONTROL || reserved ||
(binding.key == SDLK_UNKNOWN && binding.mouse_button == 0)) {
EXIT("Invalid input mapping: %s\n", value.c_str());
@@ -128,7 +152,8 @@ public:
Add(binding);
}
}
[[nodiscard]] bool Custom() const { return m_custom; }
[[nodiscard]] bool Custom() const { return m_size != 0; }
[[nodiscard]] float MouseSensitivity() const { return m_mouse_sensitivity; }
[[nodiscard]] std::size_t FindKey(int key_code) const {
key_code = NormalizeKey(static_cast<SDL_Keycode>(key_code));
@@ -159,8 +184,8 @@ private:
}
std::array<Binding, CONTROL_INFO.size()> m_bindings {};
std::size_t m_size = 0;
bool m_custom;
std::size_t m_size = 0;
float m_mouse_sensitivity = 1.0f;
};
const InputMap& GetInputMap() {
@@ -281,6 +306,33 @@ void DefaultKeyboardInput(int key_code, bool down) {
default: SetButton(DefaultKeyboardButton(key_code), down); return;
}
}
void MouseToJoystick(int delta_x, int delta_y) {
const double distance = std::hypot(delta_x, delta_y);
const double scale =
std::clamp(distance * GetInputMap().MouseSensitivity() + 16.0, 64.0, 128.0) / distance;
const auto map_axis = [scale](int delta) {
return std::clamp(128 + static_cast<int>(std::lround(delta * scale)), 0, 255);
};
Controller::ControllerRightStick(Controller::HOST_INPUT_CONTROLLER_ID, map_axis(delta_x),
map_axis(delta_y));
}
void CenterMouseStick() {
if (!g_mouse.output) {
return;
}
Controller::ControllerRightStick(Controller::HOST_INPUT_CONTROLLER_ID, 128, 128);
g_mouse.output = false;
}
bool SetRelativeMouseMode(bool enabled) {
if (SDL_SetRelativeMouseMode(enabled ? SDL_TRUE : SDL_FALSE) == 0) {
return true;
}
LOGF("Mouse-to-joystick relative mode failed: %s\n", SDL_GetError());
return false;
}
} // namespace
void HostInputInit() {
@@ -303,4 +355,63 @@ void HostInputMouseButton(uint8_t mouse_button, bool down) {
}
}
void HostInputToggleMouseToJoystick() {
if (g_mouse.enabled) {
SetRelativeMouseMode(false);
CenterMouseStick();
g_mouse = {};
LOGF("Mouse to right stick: disabled\n");
return;
}
if (!SetRelativeMouseMode(true)) {
return;
}
int ignored_x = 0;
int ignored_y = 0;
SDL_GetRelativeMouseState(&ignored_x, &ignored_y);
g_mouse.enabled = true;
g_mouse.next_poll = SDL_GetTicks64() + MOUSE_POLL_INTERVAL_MS;
LOGF("Mouse to right stick: enabled (F7 to release)\n");
}
int PollMouse(uint64_t now_ms) {
if (now_ms < g_mouse.next_poll) {
return static_cast<int>(g_mouse.next_poll - now_ms);
}
g_mouse.next_poll = now_ms + MOUSE_POLL_INTERVAL_MS;
int delta_x = 0;
int delta_y = 0;
SDL_GetRelativeMouseState(&delta_x, &delta_y);
if (delta_x == 0 && delta_y == 0) {
CenterMouseStick();
return MOUSE_POLL_INTERVAL_MS;
}
MouseToJoystick(delta_x, delta_y);
g_mouse.output = true;
return MOUSE_POLL_INTERVAL_MS;
}
bool HostInputWaitEvent(SDL_Event* event) {
if (!g_mouse.enabled || SDL_GetKeyboardFocus() == nullptr) {
CenterMouseStick();
if (SDL_WaitEvent(event) == 0) {
EXIT("%s\n", SDL_GetError());
}
return true;
}
const int timeout_ms = PollMouse(SDL_GetTicks64());
SDL_ClearError();
if (SDL_WaitEventTimeout(event, timeout_ms) != 0) {
return true;
}
if (SDL_GetError()[0] != '\0') {
EXIT("%s\n", SDL_GetError());
}
return false;
}
} // namespace Libs::Graphics
+7 -3
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@@ -3,11 +3,15 @@
#include <cstdint>
union SDL_Event;
namespace Libs::Graphics {
void HostInputInit();
void HostInputKey(int key_code, bool down);
void HostInputMouseButton(uint8_t mouse_button, bool down);
void HostInputInit();
void HostInputKey(int key_code, bool down);
void HostInputMouseButton(uint8_t mouse_button, bool down);
void HostInputToggleMouseToJoystick();
[[nodiscard]] bool HostInputWaitEvent(SDL_Event* event);
} // namespace Libs::Graphics
+9 -2
View File
@@ -507,6 +507,13 @@ void WindowContext::ProcessEvent(double time_s) {
auto& game = loop;
auto* event = &game.event;
EXIT_IF(SDL_GetEventState(SDL_DISPLAYEVENT) != SDL_ENABLE);
if ((event->type == SDL_KEYDOWN || event->type == SDL_KEYUP) &&
event->key.keysym.sym == SDLK_F7) {
if (event->type == SDL_KEYDOWN && event->key.repeat == 0) {
HostInputToggleMouseToJoystick();
}
return;
}
if (ProcessImeInput(*event)) {
return;
}
@@ -783,8 +790,8 @@ void WindowContext::Run() {
timer.Resume();
}
if (SDL_WaitEvent(&loop.event) == 0) {
EXIT("%s\n", SDL_GetError());
if (!HostInputWaitEvent(&loop.event)) {
continue;
}
ProcessEvent(timer.GetTimeS());
}
+6 -4
View File
@@ -5,6 +5,7 @@
#include <QStringList>
class QPushButton;
class QDoubleSpinBox;
class QTreeWidget;
class QTreeWidgetItem;
class QWidget;
@@ -22,10 +23,11 @@ private:
void SetBinding(QTreeWidgetItem* item, const QString& binding);
void UpdateButtons();
QTreeWidget* m_bindings = nullptr;
QPushButton* m_change_button = nullptr;
QPushButton* m_clear_button = nullptr;
bool m_customized = false;
QTreeWidget* m_bindings = nullptr;
QPushButton* m_change_button = nullptr;
QPushButton* m_clear_button = nullptr;
QDoubleSpinBox* m_sensitivity = nullptr;
bool m_custom_bindings = false;
};
#endif /* LAUNCHER_INCLUDE_INPUT_MAPPING_DIALOG_H_ */
+57 -19
View File
@@ -2,6 +2,7 @@
#include <QAbstractItemView>
#include <QDialogButtonBox>
#include <QDoubleSpinBox>
#include <QHBoxLayout>
#include <QHash>
#include <QHeaderView>
@@ -16,7 +17,9 @@
namespace {
constexpr int BINDING_COLUMN = 1;
constexpr int BINDING_COLUMN = 1;
constexpr auto DEFAULT_MOUSE_SENSITIVITY = 1.0;
constexpr char MOUSE_SENSITIVITY[] = "MouseSensitivity=";
struct PadControl {
const char* id;
@@ -128,7 +131,8 @@ public:
auto* layout = new QVBoxLayout(this);
m_label = new QLabel(
tr("Press a key or mouse button.\nSpace and F1 are reserved; Esc cancels."), this);
tr("Press a key or mouse button.\nSpace, F1, F7, and F11 are reserved; Esc cancels."),
this);
m_label->setAlignment(Qt::AlignCenter);
layout->addWidget(m_label);
}
@@ -144,7 +148,8 @@ protected:
reject();
return;
}
if (event->key() == Qt::Key_Space || event->key() == Qt::Key_F1) {
if (event->key() == Qt::Key_Space || event->key() == Qt::Key_F1 ||
event->key() == Qt::Key_F7 || event->key() == Qt::Key_F11) {
m_label->setText(tr("That key is reserved by the emulator."));
return;
}
@@ -177,6 +182,9 @@ private:
QHash<QString, QString> ParseMapping(const QStringList& mapping) {
QHash<QString, QString> result;
for (const auto& entry: mapping) {
if (entry.startsWith(QLatin1String(MOUSE_SENSITIVITY))) {
continue;
}
const auto separator = entry.indexOf(QLatin1Char('='));
if (separator > 0 && separator + 1 < entry.size()) {
const auto binding = entry.mid(separator + 1);
@@ -193,15 +201,42 @@ QHash<QString, QString> ParseMapping(const QStringList& mapping) {
return result;
}
double ParseMouseSensitivity(const QStringList& mapping) {
for (const auto& entry: mapping) {
if (entry.startsWith(QLatin1String(MOUSE_SENSITIVITY))) {
return entry.mid(sizeof(MOUSE_SENSITIVITY) - 1).toDouble();
}
}
return DEFAULT_MOUSE_SENSITIVITY;
}
} // namespace
InputMappingDialog::InputMappingDialog(const QStringList& mapping, QWidget* parent)
: QDialog(parent), m_customized(!mapping.isEmpty()) {
: QDialog(parent) {
setWindowTitle(tr("Input Mapping"));
resize(460, 650);
auto* layout = new QVBoxLayout(this);
layout->addWidget(new QLabel(tr("Map keyboard or mouse input to DualSense controls."), this));
layout->addWidget(
new QLabel(tr("Map keyboard or mouse buttons to DualSense controls.\n"
"Press F7 in-game to toggle mouse movement on the right stick."),
this));
const auto parsed = ParseMapping(mapping);
m_custom_bindings = !parsed.isEmpty();
auto* sensitivity_layout = new QHBoxLayout;
sensitivity_layout->addWidget(new QLabel(tr("Mouse sensitivity"), this));
m_sensitivity = new QDoubleSpinBox(this);
m_sensitivity->setRange(0.1, 5.0);
m_sensitivity->setSingleStep(0.1);
m_sensitivity->setDecimals(1);
m_sensitivity->setSuffix(QStringLiteral("x"));
m_sensitivity->setValue(ParseMouseSensitivity(mapping));
sensitivity_layout->addWidget(m_sensitivity);
sensitivity_layout->addStretch();
layout->addLayout(sensitivity_layout);
m_bindings = new QTreeWidget(this);
m_bindings->setColumnCount(2);
@@ -212,13 +247,12 @@ InputMappingDialog::InputMappingDialog(const QStringList& mapping, QWidget* pare
m_bindings->header()->setSectionResizeMode(1, QHeaderView::Stretch);
layout->addWidget(m_bindings);
const auto parsed = ParseMapping(mapping);
for (const auto& control: PAD_CONTROLS) {
auto* item = new QTreeWidgetItem(m_bindings);
item->setText(0, tr(control.label));
item->setData(0, Qt::UserRole, QString::fromLatin1(control.id));
SetBinding(item, m_customized ? parsed.value(QString::fromLatin1(control.id))
: QString::fromLatin1(control.default_binding));
SetBinding(item, m_custom_bindings ? parsed.value(QString::fromLatin1(control.id))
: QString::fromLatin1(control.default_binding));
}
m_bindings->setCurrentItem(m_bindings->topLevelItem(0));
@@ -248,16 +282,19 @@ InputMappingDialog::InputMappingDialog(const QStringList& mapping, QWidget* pare
QStringList InputMappingDialog::Mapping() const {
QStringList result;
if (!m_customized) {
return result;
}
for (int index = 0; index < m_bindings->topLevelItemCount(); index++) {
const auto* item = m_bindings->topLevelItem(index);
const auto binding = item->data(BINDING_COLUMN, Qt::UserRole).toString();
if (!binding.isEmpty()) {
result.append(item->data(0, Qt::UserRole).toString() + QLatin1Char('=') + binding);
if (m_custom_bindings) {
for (int index = 0; index < m_bindings->topLevelItemCount(); index++) {
const auto* item = m_bindings->topLevelItem(index);
const auto binding = item->data(BINDING_COLUMN, Qt::UserRole).toString();
if (!binding.isEmpty()) {
result.append(item->data(0, Qt::UserRole).toString() + QLatin1Char('=') + binding);
}
}
}
if (m_sensitivity->value() != DEFAULT_MOUSE_SENSITIVITY) {
result.append(QLatin1String(MOUSE_SENSITIVITY) +
QString::number(m_sensitivity->value(), 'f', 1));
}
return result;
}
@@ -281,12 +318,12 @@ void InputMappingDialog::ChangeBinding() {
}
}
SetBinding(item, dialog.Binding());
m_customized = true;
m_custom_bindings = true;
}
void InputMappingDialog::ClearBinding() {
SetBinding(m_bindings->currentItem(), {});
m_customized = true;
m_custom_bindings = true;
}
void InputMappingDialog::RestoreDefaults() {
@@ -294,7 +331,8 @@ void InputMappingDialog::RestoreDefaults() {
SetBinding(m_bindings->topLevelItem(index),
QString::fromLatin1(PAD_CONTROLS[index].default_binding));
}
m_customized = false;
m_sensitivity->setValue(DEFAULT_MOUSE_SENSITIVITY);
m_custom_bindings = false;
}
void InputMappingDialog::SetBinding(QTreeWidgetItem* item, const QString& binding) {
+19
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@@ -61,6 +61,7 @@ public:
void Disconnect(int id);
void Button(int id, uint32_t button, bool down);
void Axis(int id, Axis axis, int value);
void RightStick(int id, int x, int y);
void ResetInputState();
void GetConnectionInfo(bool* flag, int* count);
void SetVibration(uint8_t large_motor, uint8_t small_motor);
@@ -265,6 +266,18 @@ void GameController::Axis(int id, Controller::Axis axis, int value) {
}
}
void GameController::RightStick(int id, int x, int y) {
Common::LockGuard lock(m_mutex);
if (m_active_id == id || id == HOST_INPUT_CONTROLLER_ID) {
auto state = GetLastState();
state.time = LibKernel::KernelGetProcessTime();
state.axes[static_cast<int>(Axis::RightX)] = x;
state.axes[static_cast<int>(Axis::RightY)] = y;
AddState(state);
}
}
void GameController::ResetInputState() {
Common::LockGuard lock(m_mutex);
ControllerState state {};
@@ -371,6 +384,12 @@ void ControllerAxis(int id, Axis axis, int value) {
g_controller->Axis(id, axis, value);
}
void ControllerRightStick(int id, int x, int y) {
EXIT_IF(g_controller == nullptr);
g_controller->RightStick(id, x, y);
}
void ControllerResetInputState() {
EXIT_IF(g_controller == nullptr);
g_controller->ResetInputState();
+1
View File
@@ -58,6 +58,7 @@ void ControllerConnect(int id);
void ControllerDisconnect(int id);
void ControllerButton(int id, uint32_t button, bool down);
void ControllerAxis(int id, Axis axis, int value);
void ControllerRightStick(int id, int x, int y);
void ControllerResetInputState();
int KYTY_SYSV_ABI PadInit();