From 59b995a9e53f09b9831b03608cfe5ce27c3e3485 Mon Sep 17 00:00:00 2001
From: german77 <juangerman-13@hotmail.com>
Date: Mon, 20 Sep 2021 17:36:23 -0500
Subject: input_common: Rewrite SDL
---
src/input_common/drivers/sdl_driver.cpp | 915 ++++++++++++++++++++++++++++++++
1 file changed, 915 insertions(+)
create mode 100644 src/input_common/drivers/sdl_driver.cpp
(limited to 'src/input_common/drivers/sdl_driver.cpp')
diff --git a/src/input_common/drivers/sdl_driver.cpp b/src/input_common/drivers/sdl_driver.cpp
new file mode 100644
index 0000000000..efb4a21068
--- /dev/null
+++ b/src/input_common/drivers/sdl_driver.cpp
@@ -0,0 +1,915 @@
+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "common/math_util.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "common/thread.h"
+#include "common/vector_math.h"
+#include "input_common/drivers/sdl_driver.h"
+
+namespace InputCommon {
+
+namespace {
+std::string GetGUID(SDL_Joystick* joystick) {
+ const SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
+ char guid_str[33];
+ SDL_JoystickGetGUIDString(guid, guid_str, sizeof(guid_str));
+ return guid_str;
+}
+} // Anonymous namespace
+
+static int SDLEventWatcher(void* user_data, SDL_Event* event) {
+ auto* const sdl_state = static_cast<SDLDriver*>(user_data);
+
+ sdl_state->HandleGameControllerEvent(*event);
+
+ return 0;
+}
+
+class SDLJoystick {
+public:
+ SDLJoystick(std::string guid_, int port_, SDL_Joystick* joystick,
+ SDL_GameController* game_controller)
+ : guid{std::move(guid_)}, port{port_}, sdl_joystick{joystick, &SDL_JoystickClose},
+ sdl_controller{game_controller, &SDL_GameControllerClose} {
+ EnableMotion();
+ }
+
+ void EnableMotion() {
+ if (sdl_controller) {
+ SDL_GameController* controller = sdl_controller.get();
+ if (SDL_GameControllerHasSensor(controller, SDL_SENSOR_ACCEL) && !has_accel) {
+ SDL_GameControllerSetSensorEnabled(controller, SDL_SENSOR_ACCEL, SDL_TRUE);
+ has_accel = true;
+ }
+ if (SDL_GameControllerHasSensor(controller, SDL_SENSOR_GYRO) && !has_gyro) {
+ SDL_GameControllerSetSensorEnabled(controller, SDL_SENSOR_GYRO, SDL_TRUE);
+ has_gyro = true;
+ }
+ }
+ }
+
+ bool HasGyro() const {
+ return has_gyro;
+ }
+
+ bool HasAccel() const {
+ return has_accel;
+ }
+
+ bool UpdateMotion(SDL_ControllerSensorEvent event) {
+ constexpr float gravity_constant = 9.80665f;
+ std::lock_guard lock{mutex};
+ const u64 time_difference = event.timestamp - last_motion_update;
+ last_motion_update = event.timestamp;
+ switch (event.sensor) {
+ case SDL_SENSOR_ACCEL: {
+ motion.accel_x = -event.data[0] / gravity_constant;
+ motion.accel_y = event.data[2] / gravity_constant;
+ motion.accel_z = -event.data[1] / gravity_constant;
+ break;
+ }
+ case SDL_SENSOR_GYRO: {
+ motion.gyro_x = event.data[0] / (Common::PI * 2);
+ motion.gyro_y = -event.data[2] / (Common::PI * 2);
+ motion.gyro_z = event.data[1] / (Common::PI * 2);
+ break;
+ }
+ }
+
+ // Ignore duplicated timestamps
+ if (time_difference == 0) {
+ return false;
+ }
+ motion.delta_timestamp = time_difference * 1000;
+ return true;
+ }
+
+ BasicMotion GetMotion() {
+ return motion;
+ }
+
+ bool RumblePlay(const Input::VibrationStatus vibration) {
+ constexpr u32 rumble_max_duration_ms = 1000;
+
+ if (sdl_controller) {
+ return SDL_GameControllerRumble(
+ sdl_controller.get(), static_cast<u16>(vibration.low_amplitude),
+ static_cast<u16>(vibration.high_amplitude), rumble_max_duration_ms) != -1;
+ } else if (sdl_joystick) {
+ return SDL_JoystickRumble(sdl_joystick.get(), static_cast<u16>(vibration.low_amplitude),
+ static_cast<u16>(vibration.high_amplitude),
+ rumble_max_duration_ms) != -1;
+ }
+
+ return false;
+ }
+ /**
+ * The Pad identifier of the joystick
+ */
+ const PadIdentifier GetPadIdentifier() const {
+ return {
+ .guid = Common::UUID{guid},
+ .port = static_cast<std::size_t>(port),
+ .pad = 0,
+ };
+ }
+
+ /**
+ * The guid of the joystick
+ */
+ const std::string& GetGUID() const {
+ return guid;
+ }
+
+ /**
+ * The number of joystick from the same type that were connected before this joystick
+ */
+ int GetPort() const {
+ return port;
+ }
+
+ SDL_Joystick* GetSDLJoystick() const {
+ return sdl_joystick.get();
+ }
+
+ SDL_GameController* GetSDLGameController() const {
+ return sdl_controller.get();
+ }
+
+ void SetSDLJoystick(SDL_Joystick* joystick, SDL_GameController* controller) {
+ sdl_joystick.reset(joystick);
+ sdl_controller.reset(controller);
+ }
+
+ bool IsJoyconLeft() const {
+ const std::string controller_name = GetControllerName();
+ if (std::strstr(controller_name.c_str(), "Joy-Con Left") != nullptr) {
+ return true;
+ }
+ if (std::strstr(controller_name.c_str(), "Joy-Con (L)") != nullptr) {
+ return true;
+ }
+ return false;
+ }
+
+ bool IsJoyconRight() const {
+ const std::string controller_name = GetControllerName();
+ if (std::strstr(controller_name.c_str(), "Joy-Con Right") != nullptr) {
+ return true;
+ }
+ if (std::strstr(controller_name.c_str(), "Joy-Con (R)") != nullptr) {
+ return true;
+ }
+ return false;
+ }
+
+ BatteryLevel GetBatteryLevel() {
+ const auto level = SDL_JoystickCurrentPowerLevel(sdl_joystick.get());
+ switch (level) {
+ case SDL_JOYSTICK_POWER_EMPTY:
+ return BatteryLevel::Empty;
+ case SDL_JOYSTICK_POWER_LOW:
+ return BatteryLevel::Critical;
+ case SDL_JOYSTICK_POWER_MEDIUM:
+ return BatteryLevel::Low;
+ case SDL_JOYSTICK_POWER_FULL:
+ return BatteryLevel::Medium;
+ case SDL_JOYSTICK_POWER_MAX:
+ return BatteryLevel::Full;
+ case SDL_JOYSTICK_POWER_UNKNOWN:
+ case SDL_JOYSTICK_POWER_WIRED:
+ default:
+ return BatteryLevel::Charging;
+ }
+ }
+
+ std::string GetControllerName() const {
+ if (sdl_controller) {
+ switch (SDL_GameControllerGetType(sdl_controller.get())) {
+ case SDL_CONTROLLER_TYPE_XBOX360:
+ return "XBox 360 Controller";
+ case SDL_CONTROLLER_TYPE_XBOXONE:
+ return "XBox One Controller";
+ default:
+ break;
+ }
+ const auto name = SDL_GameControllerName(sdl_controller.get());
+ if (name) {
+ return name;
+ }
+ }
+
+ if (sdl_joystick) {
+ const auto name = SDL_JoystickName(sdl_joystick.get());
+ if (name) {
+ return name;
+ }
+ }
+
+ return "Unknown";
+ }
+
+ bool IsYAxis(u8 index) {
+ if (!sdl_controller) {
+ return false;
+ }
+
+ const auto& binding_left_y =
+ SDL_GameControllerGetBindForAxis(sdl_controller.get(), SDL_CONTROLLER_AXIS_LEFTY);
+ const auto& binding_right_y =
+ SDL_GameControllerGetBindForAxis(sdl_controller.get(), SDL_CONTROLLER_AXIS_RIGHTY);
+ if (index == binding_left_y.value.axis) {
+ return true;
+ }
+ if (index == binding_right_y.value.axis) {
+ return true;
+ }
+ return false;
+ }
+
+private:
+ std::string guid;
+ int port;
+ std::unique_ptr<SDL_Joystick, decltype(&SDL_JoystickClose)> sdl_joystick;
+ std::unique_ptr<SDL_GameController, decltype(&SDL_GameControllerClose)> sdl_controller;
+ mutable std::mutex mutex;
+
+ u64 last_motion_update{};
+ bool has_gyro{false};
+ bool has_accel{false};
+ BasicMotion motion;
+};
+
+std::shared_ptr<SDLJoystick> SDLDriver::GetSDLJoystickByGUID(const std::string& guid, int port) {
+ std::lock_guard lock{joystick_map_mutex};
+ const auto it = joystick_map.find(guid);
+
+ if (it != joystick_map.end()) {
+ while (it->second.size() <= static_cast<std::size_t>(port)) {
+ auto joystick = std::make_shared<SDLJoystick>(guid, static_cast<int>(it->second.size()),
+ nullptr, nullptr);
+ it->second.emplace_back(std::move(joystick));
+ }
+
+ return it->second[static_cast<std::size_t>(port)];
+ }
+
+ auto joystick = std::make_shared<SDLJoystick>(guid, 0, nullptr, nullptr);
+
+ return joystick_map[guid].emplace_back(std::move(joystick));
+}
+
+std::shared_ptr<SDLJoystick> SDLDriver::GetSDLJoystickBySDLID(SDL_JoystickID sdl_id) {
+ auto sdl_joystick = SDL_JoystickFromInstanceID(sdl_id);
+ const std::string guid = GetGUID(sdl_joystick);
+
+ std::lock_guard lock{joystick_map_mutex};
+ const auto map_it = joystick_map.find(guid);
+
+ if (map_it == joystick_map.end()) {
+ return nullptr;
+ }
+
+ const auto vec_it = std::find_if(map_it->second.begin(), map_it->second.end(),
+ [&sdl_joystick](const auto& joystick) {
+ return joystick->GetSDLJoystick() == sdl_joystick;
+ });
+
+ if (vec_it == map_it->second.end()) {
+ return nullptr;
+ }
+
+ return *vec_it;
+}
+
+void SDLDriver::InitJoystick(int joystick_index) {
+ SDL_Joystick* sdl_joystick = SDL_JoystickOpen(joystick_index);
+ SDL_GameController* sdl_gamecontroller = nullptr;
+
+ if (SDL_IsGameController(joystick_index)) {
+ sdl_gamecontroller = SDL_GameControllerOpen(joystick_index);
+ }
+
+ if (!sdl_joystick) {
+ LOG_ERROR(Input, "Failed to open joystick {}", joystick_index);
+ return;
+ }
+
+ const std::string guid = GetGUID(sdl_joystick);
+
+ std::lock_guard lock{joystick_map_mutex};
+ if (joystick_map.find(guid) == joystick_map.end()) {
+ auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick, sdl_gamecontroller);
+ PreSetController(joystick->GetPadIdentifier());
+ joystick_map[guid].emplace_back(std::move(joystick));
+ return;
+ }
+
+ auto& joystick_guid_list = joystick_map[guid];
+ const auto joystick_it =
+ std::find_if(joystick_guid_list.begin(), joystick_guid_list.end(),
+ [](const auto& joystick) { return !joystick->GetSDLJoystick(); });
+
+ if (joystick_it != joystick_guid_list.end()) {
+ (*joystick_it)->SetSDLJoystick(sdl_joystick, sdl_gamecontroller);
+ return;
+ }
+
+ const int port = static_cast<int>(joystick_guid_list.size());
+ auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick, sdl_gamecontroller);
+ PreSetController(joystick->GetPadIdentifier());
+ joystick_guid_list.emplace_back(std::move(joystick));
+}
+
+void SDLDriver::CloseJoystick(SDL_Joystick* sdl_joystick) {
+ const std::string guid = GetGUID(sdl_joystick);
+
+ std::lock_guard lock{joystick_map_mutex};
+ // This call to guid is safe since the joystick is guaranteed to be in the map
+ const auto& joystick_guid_list = joystick_map[guid];
+ const auto joystick_it = std::find_if(joystick_guid_list.begin(), joystick_guid_list.end(),
+ [&sdl_joystick](const auto& joystick) {
+ return joystick->GetSDLJoystick() == sdl_joystick;
+ });
+
+ if (joystick_it != joystick_guid_list.end()) {
+ (*joystick_it)->SetSDLJoystick(nullptr, nullptr);
+ }
+}
+
+void SDLDriver::HandleGameControllerEvent(const SDL_Event& event) {
+ switch (event.type) {
+ case SDL_JOYBUTTONUP: {
+ if (const auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
+ const PadIdentifier identifier = joystick->GetPadIdentifier();
+ SetButton(identifier, event.jbutton.button, false);
+ }
+ break;
+ }
+ case SDL_JOYBUTTONDOWN: {
+ if (const auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
+ const PadIdentifier identifier = joystick->GetPadIdentifier();
+ SetButton(identifier, event.jbutton.button, true);
+ }
+ break;
+ }
+ case SDL_JOYHATMOTION: {
+ if (const auto joystick = GetSDLJoystickBySDLID(event.jhat.which)) {
+ const PadIdentifier identifier = joystick->GetPadIdentifier();
+ SetHatButton(identifier, event.jhat.hat, event.jhat.value);
+ }
+ break;
+ }
+ case SDL_JOYAXISMOTION: {
+ if (const auto joystick = GetSDLJoystickBySDLID(event.jaxis.which)) {
+ const PadIdentifier identifier = joystick->GetPadIdentifier();
+ // Vertical axis is inverted on nintendo compared to SDL
+ if (joystick->IsYAxis(event.jaxis.axis)) {
+ SetAxis(identifier, event.jaxis.axis, -event.jaxis.value / 32767.0f);
+ break;
+ }
+ SetAxis(identifier, event.jaxis.axis, event.jaxis.value / 32767.0f);
+ }
+ break;
+ }
+ case SDL_CONTROLLERSENSORUPDATE: {
+ if (auto joystick = GetSDLJoystickBySDLID(event.csensor.which)) {
+ if (joystick->UpdateMotion(event.csensor)) {
+ const PadIdentifier identifier = joystick->GetPadIdentifier();
+ SetMotion(identifier, 0, joystick->GetMotion());
+ };
+ }
+ break;
+ }
+ case SDL_JOYDEVICEREMOVED:
+ LOG_DEBUG(Input, "Controller removed with Instance_ID {}", event.jdevice.which);
+ CloseJoystick(SDL_JoystickFromInstanceID(event.jdevice.which));
+ break;
+ case SDL_JOYDEVICEADDED:
+ LOG_DEBUG(Input, "Controller connected with device index {}", event.jdevice.which);
+ InitJoystick(event.jdevice.which);
+ break;
+ }
+}
+
+void SDLDriver::CloseJoysticks() {
+ std::lock_guard lock{joystick_map_mutex};
+ joystick_map.clear();
+}
+
+SDLDriver::SDLDriver(const std::string& input_engine_) : InputEngine(input_engine_) {
+ Common::SetCurrentThreadName("yuzu:input:SDL");
+
+ if (!Settings::values.enable_raw_input) {
+ // Disable raw input. When enabled this setting causes SDL to die when a web applet opens
+ SDL_SetHint(SDL_HINT_JOYSTICK_RAWINPUT, "0");
+ }
+
+ // Prevent SDL from adding undesired axis
+ SDL_SetHint(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, "0");
+
+ // Enable HIDAPI rumble. This prevents SDL from disabling motion on PS4 and PS5 controllers
+ SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
+ SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS5_RUMBLE, "1");
+ SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
+
+ // Use hidapi driver for joycons. This will allow joycons to be detected as a GameController and
+ // not a generic one
+ SDL_SetHint("SDL_JOYSTICK_HIDAPI_JOY_CONS", "1");
+
+ // Turn off Pro controller home led
+ SDL_SetHint("SDL_JOYSTICK_HIDAPI_SWITCH_HOME_LED", "0");
+
+ // If the frontend is going to manage the event loop, then we don't start one here
+ start_thread = SDL_WasInit(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER) == 0;
+ if (start_thread && SDL_Init(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER) < 0) {
+ LOG_CRITICAL(Input, "SDL_Init failed with: {}", SDL_GetError());
+ return;
+ }
+
+ SDL_AddEventWatch(&SDLEventWatcher, this);
+
+ initialized = true;
+ if (start_thread) {
+ poll_thread = std::thread([this] {
+ using namespace std::chrono_literals;
+ while (initialized) {
+ SDL_PumpEvents();
+ std::this_thread::sleep_for(1ms);
+ }
+ });
+ }
+ // Because the events for joystick connection happens before we have our event watcher added, we
+ // can just open all the joysticks right here
+ for (int i = 0; i < SDL_NumJoysticks(); ++i) {
+ InitJoystick(i);
+ }
+}
+
+SDLDriver::~SDLDriver() {
+ CloseJoysticks();
+ SDL_DelEventWatch(&SDLEventWatcher, this);
+
+ initialized = false;
+ if (start_thread) {
+ poll_thread.join();
+ SDL_QuitSubSystem(SDL_INIT_JOYSTICK | SDL_INIT_GAMECONTROLLER);
+ }
+}
+
+std::vector<Common::ParamPackage> SDLDriver::GetInputDevices() const {
+ std::vector<Common::ParamPackage> devices;
+ std::unordered_map<int, std::shared_ptr<SDLJoystick>> joycon_pairs;
+ for (const auto& [key, value] : joystick_map) {
+ for (const auto& joystick : value) {
+ if (!joystick->GetSDLJoystick()) {
+ continue;
+ }
+ const std::string name =
+ fmt::format("{} {}", joystick->GetControllerName(), joystick->GetPort());
+ devices.emplace_back(Common::ParamPackage{
+ {"engine", "sdl"},
+ {"display", std::move(name)},
+ {"guid", joystick->GetGUID()},
+ {"port", std::to_string(joystick->GetPort())},
+ });
+ if (joystick->IsJoyconLeft()) {
+ joycon_pairs.insert_or_assign(joystick->GetPort(), joystick);
+ }
+ }
+ }
+
+ // Add dual controllers
+ for (const auto& [key, value] : joystick_map) {
+ for (const auto& joystick : value) {
+ if (joystick->IsJoyconRight()) {
+ if (!joycon_pairs.contains(joystick->GetPort())) {
+ continue;
+ }
+ const auto joystick2 = joycon_pairs.at(joystick->GetPort());
+
+ const std::string name =
+ fmt::format("{} {}", "Nintendo Dual Joy-Con", joystick->GetPort());
+ devices.emplace_back(Common::ParamPackage{
+ {"engine", "sdl"},
+ {"display", std::move(name)},
+ {"guid", joystick->GetGUID()},
+ {"guid2", joystick2->GetGUID()},
+ {"port", std::to_string(joystick->GetPort())},
+ });
+ }
+ }
+ }
+ return devices;
+}
+bool SDLDriver::SetRumble(const PadIdentifier& identifier, const Input::VibrationStatus vibration) {
+ const auto joystick =
+ GetSDLJoystickByGUID(identifier.guid.Format(), static_cast<int>(identifier.port));
+ const auto process_amplitude = [](f32 amplitude) {
+ return (amplitude + std::pow(amplitude, 0.3f)) * 0.5f * 0xFFFF;
+ };
+ const Input::VibrationStatus new_vibration{
+ .low_amplitude = process_amplitude(vibration.low_amplitude),
+ .low_frequency = vibration.low_frequency,
+ .high_amplitude = process_amplitude(vibration.high_amplitude),
+ .high_frequency = vibration.high_frequency,
+ };
+
+ return joystick->RumblePlay(new_vibration);
+}
+Common::ParamPackage SDLDriver::BuildAnalogParamPackageForButton(int port, std::string guid,
+ s32 axis, float value) const {
+ Common::ParamPackage params({{"engine", "sdl"}});
+ params.Set("port", port);
+ params.Set("guid", std::move(guid));
+ params.Set("axis", axis);
+ params.Set("threshold", "0.5");
+ params.Set("invert", value < 0 ? "-" : "+");
+ return params;
+}
+
+Common::ParamPackage SDLDriver::BuildButtonParamPackageForButton(int port, std::string guid,
+ s32 button) const {
+ Common::ParamPackage params({{"engine", "sdl"}});
+ params.Set("port", port);
+ params.Set("guid", std::move(guid));
+ params.Set("button", button);
+ return params;
+}
+
+Common::ParamPackage SDLDriver::BuildHatParamPackageForButton(int port, std::string guid, s32 hat,
+ u8 value) const {
+ Common::ParamPackage params({{"engine", "sdl"}});
+
+ params.Set("port", port);
+ params.Set("guid", std::move(guid));
+ params.Set("hat", hat);
+ params.Set("direction", GetHatButtonName(value));
+ return params;
+}
+
+Common::ParamPackage SDLDriver::BuildMotionParam(int port, std::string guid) const {
+ Common::ParamPackage params({{"engine", "sdl"}, {"motion", "0"}});
+ params.Set("port", port);
+ params.Set("guid", std::move(guid));
+ return params;
+}
+
+Common::ParamPackage SDLDriver::BuildParamPackageForBinding(
+ int port, const std::string& guid, const SDL_GameControllerButtonBind& binding) const {
+ switch (binding.bindType) {
+ case SDL_CONTROLLER_BINDTYPE_NONE:
+ break;
+ case SDL_CONTROLLER_BINDTYPE_AXIS:
+ return BuildAnalogParamPackageForButton(port, guid, binding.value.axis);
+ case SDL_CONTROLLER_BINDTYPE_BUTTON:
+ return BuildButtonParamPackageForButton(port, guid, binding.value.button);
+ case SDL_CONTROLLER_BINDTYPE_HAT:
+ return BuildHatParamPackageForButton(port, guid, binding.value.hat.hat,
+ static_cast<u8>(binding.value.hat.hat_mask));
+ }
+ return {};
+}
+
+Common::ParamPackage SDLDriver::BuildParamPackageForAnalog(PadIdentifier identifier, int axis_x,
+ int axis_y, float offset_x,
+ float offset_y) const {
+ Common::ParamPackage params;
+ params.Set("engine", "sdl");
+ params.Set("port", static_cast<int>(identifier.port));
+ params.Set("guid", identifier.guid.Format());
+ params.Set("axis_x", axis_x);
+ params.Set("axis_y", axis_y);
+ params.Set("offset_x", offset_x);
+ params.Set("offset_y", offset_y);
+ params.Set("invert_x", "+");
+ params.Set("invert_y", "+");
+ return params;
+}
+
+ButtonMapping SDLDriver::GetButtonMappingForDevice(const Common::ParamPackage& params) {
+ if (!params.Has("guid") || !params.Has("port")) {
+ return {};
+ }
+ const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+
+ auto* controller = joystick->GetSDLGameController();
+ if (controller == nullptr) {
+ return {};
+ }
+
+ // This list is missing ZL/ZR since those are not considered buttons in SDL GameController.
+ // We will add those afterwards
+ // This list also excludes Screenshot since theres not really a mapping for that
+ ButtonBindings switch_to_sdl_button;
+
+ if (SDL_GameControllerGetType(controller) == SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_PRO) {
+ switch_to_sdl_button = GetNintendoButtonBinding(joystick);
+ } else {
+ switch_to_sdl_button = GetDefaultButtonBinding();
+ }
+
+ // Add the missing bindings for ZL/ZR
+ static constexpr ZButtonBindings switch_to_sdl_axis{{
+ {Settings::NativeButton::ZL, SDL_CONTROLLER_AXIS_TRIGGERLEFT},
+ {Settings::NativeButton::ZR, SDL_CONTROLLER_AXIS_TRIGGERRIGHT},
+ }};
+
+ // Parameters contain two joysticks return dual
+ if (params.Has("guid2")) {
+ const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+
+ if (joystick2->GetSDLGameController() != nullptr) {
+ return GetDualControllerMapping(joystick, joystick2, switch_to_sdl_button,
+ switch_to_sdl_axis);
+ }
+ }
+
+ return GetSingleControllerMapping(joystick, switch_to_sdl_button, switch_to_sdl_axis);
+}
+
+ButtonBindings SDLDriver::GetDefaultButtonBinding() const {
+ return {
+ std::pair{Settings::NativeButton::A, SDL_CONTROLLER_BUTTON_B},
+ {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_A},
+ {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y},
+ {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_X},
+ {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK},
+ {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK},
+ {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+ {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+ {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START},
+ {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK},
+ {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT},
+ {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP},
+ {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT},
+ {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN},
+ {Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+ {Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+ {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE},
+ };
+}
+
+ButtonBindings SDLDriver::GetNintendoButtonBinding(
+ const std::shared_ptr<SDLJoystick>& joystick) const {
+ // Default SL/SR mapping for pro controllers
+ auto sl_button = SDL_CONTROLLER_BUTTON_LEFTSHOULDER;
+ auto sr_button = SDL_CONTROLLER_BUTTON_RIGHTSHOULDER;
+
+ if (joystick->IsJoyconLeft()) {
+ sl_button = SDL_CONTROLLER_BUTTON_PADDLE2;
+ sr_button = SDL_CONTROLLER_BUTTON_PADDLE4;
+ }
+ if (joystick->IsJoyconRight()) {
+ sl_button = SDL_CONTROLLER_BUTTON_PADDLE3;
+ sr_button = SDL_CONTROLLER_BUTTON_PADDLE1;
+ }
+
+ return {
+ std::pair{Settings::NativeButton::A, SDL_CONTROLLER_BUTTON_A},
+ {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_B},
+ {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_X},
+ {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_Y},
+ {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK},
+ {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK},
+ {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
+ {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
+ {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START},
+ {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK},
+ {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT},
+ {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP},
+ {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT},
+ {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN},
+ {Settings::NativeButton::SL, sl_button},
+ {Settings::NativeButton::SR, sr_button},
+ {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE},
+ };
+}
+
+ButtonMapping SDLDriver::GetSingleControllerMapping(
+ const std::shared_ptr<SDLJoystick>& joystick, const ButtonBindings& switch_to_sdl_button,
+ const ZButtonBindings& switch_to_sdl_axis) const {
+ ButtonMapping mapping;
+ mapping.reserve(switch_to_sdl_button.size() + switch_to_sdl_axis.size());
+ auto* controller = joystick->GetSDLGameController();
+
+ for (const auto& [switch_button, sdl_button] : switch_to_sdl_button) {
+ const auto& binding = SDL_GameControllerGetBindForButton(controller, sdl_button);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+ }
+ for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) {
+ const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+ }
+
+ return mapping;
+}
+
+ButtonMapping SDLDriver::GetDualControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+ const std::shared_ptr<SDLJoystick>& joystick2,
+ const ButtonBindings& switch_to_sdl_button,
+ const ZButtonBindings& switch_to_sdl_axis) const {
+ ButtonMapping mapping;
+ mapping.reserve(switch_to_sdl_button.size() + switch_to_sdl_axis.size());
+ auto* controller = joystick->GetSDLGameController();
+ auto* controller2 = joystick2->GetSDLGameController();
+
+ for (const auto& [switch_button, sdl_button] : switch_to_sdl_button) {
+ if (IsButtonOnLeftSide(switch_button)) {
+ const auto& binding = SDL_GameControllerGetBindForButton(controller2, sdl_button);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick2->GetPort(), joystick2->GetGUID(), binding));
+ continue;
+ }
+ const auto& binding = SDL_GameControllerGetBindForButton(controller, sdl_button);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+ }
+ for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) {
+ if (IsButtonOnLeftSide(switch_button)) {
+ const auto& binding = SDL_GameControllerGetBindForAxis(controller2, sdl_axis);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick2->GetPort(), joystick2->GetGUID(), binding));
+ continue;
+ }
+ const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis);
+ mapping.insert_or_assign(
+ switch_button,
+ BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
+ }
+
+ return mapping;
+}
+
+bool SDLDriver::IsButtonOnLeftSide(Settings::NativeButton::Values button) const {
+ switch (button) {
+ case Settings::NativeButton::DDown:
+ case Settings::NativeButton::DLeft:
+ case Settings::NativeButton::DRight:
+ case Settings::NativeButton::DUp:
+ case Settings::NativeButton::L:
+ case Settings::NativeButton::LStick:
+ case Settings::NativeButton::Minus:
+ case Settings::NativeButton::Screenshot:
+ case Settings::NativeButton::ZL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+AnalogMapping SDLDriver::GetAnalogMappingForDevice(const Common::ParamPackage& params) {
+ if (!params.Has("guid") || !params.Has("port")) {
+ return {};
+ }
+ const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+ const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+ auto* controller = joystick->GetSDLGameController();
+ if (controller == nullptr) {
+ return {};
+ }
+
+ AnalogMapping mapping = {};
+ const auto& binding_left_x =
+ SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX);
+ const auto& binding_left_y =
+ SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY);
+ if (params.Has("guid2")) {
+ const auto identifier = joystick2->GetPadIdentifier();
+ PreSetController(identifier);
+ PreSetAxis(identifier, binding_left_x.value.axis);
+ PreSetAxis(identifier, binding_left_y.value.axis);
+ const auto left_offset_x = -GetAxis(identifier, binding_left_x.value.axis);
+ const auto left_offset_y = -GetAxis(identifier, binding_left_y.value.axis);
+ mapping.insert_or_assign(Settings::NativeAnalog::LStick,
+ BuildParamPackageForAnalog(identifier, binding_left_x.value.axis,
+ binding_left_y.value.axis,
+ left_offset_x, left_offset_y));
+ } else {
+ const auto identifier = joystick->GetPadIdentifier();
+ PreSetController(identifier);
+ PreSetAxis(identifier, binding_left_x.value.axis);
+ PreSetAxis(identifier, binding_left_y.value.axis);
+ const auto left_offset_x = -GetAxis(identifier, binding_left_x.value.axis);
+ const auto left_offset_y = -GetAxis(identifier, binding_left_y.value.axis);
+ mapping.insert_or_assign(Settings::NativeAnalog::LStick,
+ BuildParamPackageForAnalog(identifier, binding_left_x.value.axis,
+ binding_left_y.value.axis,
+ left_offset_x, left_offset_y));
+ }
+ const auto& binding_right_x =
+ SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX);
+ const auto& binding_right_y =
+ SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY);
+ const auto identifier = joystick->GetPadIdentifier();
+ PreSetController(identifier);
+ PreSetAxis(identifier, binding_right_x.value.axis);
+ PreSetAxis(identifier, binding_right_y.value.axis);
+ const auto right_offset_x = -GetAxis(identifier, binding_right_x.value.axis);
+ const auto right_offset_y = -GetAxis(identifier, binding_right_y.value.axis);
+ mapping.insert_or_assign(Settings::NativeAnalog::RStick,
+ BuildParamPackageForAnalog(identifier, binding_right_x.value.axis,
+ binding_right_y.value.axis, right_offset_x,
+ right_offset_y));
+ return mapping;
+}
+
+MotionMapping SDLDriver::GetMotionMappingForDevice(const Common::ParamPackage& params) {
+ if (!params.Has("guid") || !params.Has("port")) {
+ return {};
+ }
+ const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
+ const auto joystick2 = GetSDLJoystickByGUID(params.Get("guid2", ""), params.Get("port", 0));
+ auto* controller = joystick->GetSDLGameController();
+ if (controller == nullptr) {
+ return {};
+ }
+
+ MotionMapping mapping = {};
+ joystick->EnableMotion();
+
+ if (joystick->HasGyro() || joystick->HasAccel()) {
+ mapping.insert_or_assign(Settings::NativeMotion::MotionRight,
+ BuildMotionParam(joystick->GetPort(), joystick->GetGUID()));
+ }
+ if (params.Has("guid2")) {
+ joystick2->EnableMotion();
+ if (joystick2->HasGyro() || joystick2->HasAccel()) {
+ mapping.insert_or_assign(Settings::NativeMotion::MotionLeft,
+ BuildMotionParam(joystick2->GetPort(), joystick2->GetGUID()));
+ }
+ } else {
+ if (joystick->HasGyro() || joystick->HasAccel()) {
+ mapping.insert_or_assign(Settings::NativeMotion::MotionLeft,
+ BuildMotionParam(joystick->GetPort(), joystick->GetGUID()));
+ }
+ }
+
+ return mapping;
+}
+
+std::string SDLDriver::GetUIName(const Common::ParamPackage& params) const {
+ if (params.Has("button")) {
+ // TODO(German77): Find how to substitue the values for real button names
+ return fmt::format("Button {}", params.Get("button", 0));
+ }
+ if (params.Has("hat")) {
+ return fmt::format("Hat {}", params.Get("direction", ""));
+ }
+ if (params.Has("axis")) {
+ return fmt::format("Axis {}", params.Get("axis", ""));
+ }
+ if (params.Has("axis_x") && params.Has("axis_y") && params.Has("axis_z")) {
+ return fmt::format("Axis {},{},{}", params.Get("axis_x", ""), params.Get("axis_y", ""),
+ params.Get("axis_z", ""));
+ }
+ if (params.Has("motion")) {
+ return "SDL motion";
+ }
+
+ return "Bad SDL";
+}
+
+std::string SDLDriver::GetHatButtonName(u8 direction_value) const {
+ switch (direction_value) {
+ case SDL_HAT_UP:
+ return "up";
+ case SDL_HAT_DOWN:
+ return "down";
+ case SDL_HAT_LEFT:
+ return "left";
+ case SDL_HAT_RIGHT:
+ return "right";
+ default:
+ return {};
+ }
+}
+
+u8 SDLDriver::GetHatButtonId(const std::string direction_name) const {
+ Uint8 direction;
+ if (direction_name == "up") {
+ direction = SDL_HAT_UP;
+ } else if (direction_name == "down") {
+ direction = SDL_HAT_DOWN;
+ } else if (direction_name == "left") {
+ direction = SDL_HAT_LEFT;
+ } else if (direction_name == "right") {
+ direction = SDL_HAT_RIGHT;
+ } else {
+ direction = 0;
+ }
+ return direction;
+}
+
+} // namespace InputCommon
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