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/sdl/sdl_impl.cpp | 1658 -------------------------------------
1 file changed, 1658 deletions(-)
delete mode 100644 src/input_common/sdl/sdl_impl.cpp
(limited to 'src/input_common/sdl/sdl_impl.cpp')
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp
deleted file mode 100644
index ecb00d4286..0000000000
--- a/src/input_common/sdl/sdl_impl.cpp
+++ /dev/null
@@ -1,1658 +0,0 @@
-// Copyright 2018 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-#include <array>
-#include <atomic>
-#include <chrono>
-#include <cmath>
-#include <functional>
-#include <mutex>
-#include <optional>
-#include <sstream>
-#include <string>
-#include <thread>
-#include <tuple>
-#include <unordered_map>
-#include <utility>
-#include <vector>
-
-#include "common/logging/log.h"
-#include "common/math_util.h"
-#include "common/param_package.h"
-#include "common/settings.h"
-#include "common/threadsafe_queue.h"
-#include "core/frontend/input.h"
-#include "input_common/motion_input.h"
-#include "input_common/sdl/sdl_impl.h"
-
-namespace InputCommon::SDL {
-
-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;
-}
-
-/// Creates a ParamPackage from an SDL_Event that can directly be used to create a ButtonDevice
-Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Event& event);
-} // Anonymous namespace
-
-static int SDLEventWatcher(void* user_data, SDL_Event* event) {
- auto* const sdl_state = static_cast<SDLState*>(user_data);
-
- // Don't handle the event if we are configuring
- if (sdl_state->polling) {
- sdl_state->event_queue.Push(*event);
- } else {
- 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;
- }
- }
- }
-
- void SetButton(int button, bool value) {
- std::lock_guard lock{mutex};
- state.buttons.insert_or_assign(button, value);
- }
-
- void PreSetButton(int button) {
- if (!state.buttons.contains(button)) {
- SetButton(button, false);
- }
- }
-
- void SetMotion(SDL_ControllerSensorEvent event) {
- constexpr float gravity_constant = 9.80665f;
- std::lock_guard lock{mutex};
- u64 time_difference = event.timestamp - last_motion_update;
- last_motion_update = event.timestamp;
- switch (event.sensor) {
- case SDL_SENSOR_ACCEL: {
- const Common::Vec3f acceleration = {-event.data[0], event.data[2], -event.data[1]};
- motion.SetAcceleration(acceleration / gravity_constant);
- break;
- }
- case SDL_SENSOR_GYRO: {
- const Common::Vec3f gyroscope = {event.data[0], -event.data[2], event.data[1]};
- motion.SetGyroscope(gyroscope / (Common::PI * 2));
- break;
- }
- }
-
- // Ignore duplicated timestamps
- if (time_difference == 0) {
- return;
- }
-
- motion.SetGyroThreshold(0.0001f);
- motion.UpdateRotation(time_difference * 1000);
- motion.UpdateOrientation(time_difference * 1000);
- }
-
- bool GetButton(int button) const {
- std::lock_guard lock{mutex};
- return state.buttons.at(button);
- }
-
- bool ToggleButton(int button) {
- std::lock_guard lock{mutex};
-
- if (!state.toggle_buttons.contains(button) || !state.lock_buttons.contains(button)) {
- state.toggle_buttons.insert_or_assign(button, false);
- state.lock_buttons.insert_or_assign(button, false);
- }
-
- const bool button_state = state.toggle_buttons.at(button);
- const bool button_lock = state.lock_buttons.at(button);
-
- if (button_lock) {
- return button_state;
- }
-
- state.lock_buttons.insert_or_assign(button, true);
-
- if (button_state) {
- state.toggle_buttons.insert_or_assign(button, false);
- } else {
- state.toggle_buttons.insert_or_assign(button, true);
- }
-
- return !button_state;
- }
-
- bool UnlockButton(int button) {
- std::lock_guard lock{mutex};
- if (!state.toggle_buttons.contains(button)) {
- return false;
- }
- state.lock_buttons.insert_or_assign(button, false);
- return state.toggle_buttons.at(button);
- }
-
- void SetAxis(int axis, Sint16 value) {
- std::lock_guard lock{mutex};
- state.axes.insert_or_assign(axis, value);
- }
-
- void PreSetAxis(int axis) {
- if (!state.axes.contains(axis)) {
- SetAxis(axis, 0);
- }
- }
-
- float GetAxis(int axis, float range, float offset) const {
- std::lock_guard lock{mutex};
- const float value = static_cast<float>(state.axes.at(axis)) / 32767.0f;
- const float offset_scale = (value + offset) > 0.0f ? 1.0f + offset : 1.0f - offset;
- return (value + offset) / range / offset_scale;
- }
-
- bool RumblePlay(u16 amp_low, u16 amp_high) {
- constexpr u32 rumble_max_duration_ms = 1000;
-
- if (sdl_controller) {
- return SDL_GameControllerRumble(sdl_controller.get(), amp_low, amp_high,
- rumble_max_duration_ms) != -1;
- } else if (sdl_joystick) {
- return SDL_JoystickRumble(sdl_joystick.get(), amp_low, amp_high,
- rumble_max_duration_ms) != -1;
- }
-
- return false;
- }
-
- std::tuple<float, float> GetAnalog(int axis_x, int axis_y, float range, float offset_x,
- float offset_y) const {
- float x = GetAxis(axis_x, range, offset_x);
- float y = GetAxis(axis_y, range, offset_y);
- y = -y; // 3DS uses an y-axis inverse from SDL
-
- // 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 std::make_tuple(x, y);
- }
-
- bool HasGyro() const {
- return has_gyro;
- }
-
- bool HasAccel() const {
- return has_accel;
- }
-
- const MotionInput& GetMotion() const {
- return motion;
- }
-
- void SetHat(int hat, Uint8 direction) {
- std::lock_guard lock{mutex};
- state.hats.insert_or_assign(hat, direction);
- }
-
- bool GetHatDirection(int hat, Uint8 direction) const {
- std::lock_guard lock{mutex};
- return (state.hats.at(hat) & direction) != 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;
- }
-
- 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";
- }
-
-private:
- struct State {
- std::unordered_map<int, bool> buttons;
- std::unordered_map<int, bool> toggle_buttons{};
- std::unordered_map<int, bool> lock_buttons{};
- std::unordered_map<int, Sint16> axes;
- std::unordered_map<int, Uint8> hats;
- } state;
- 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;
-
- // Motion is initialized with the PID values
- MotionInput motion{0.3f, 0.005f, 0.0f};
- u64 last_motion_update{};
- bool has_gyro{false};
- bool has_accel{false};
-};
-
-std::shared_ptr<SDLJoystick> SDLState::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> SDLState::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 SDLState::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);
- 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);
- joystick_guid_list.emplace_back(std::move(joystick));
-}
-
-void SDLState::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 SDLState::HandleGameControllerEvent(const SDL_Event& event) {
- switch (event.type) {
- case SDL_JOYBUTTONUP: {
- if (auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
- joystick->SetButton(event.jbutton.button, false);
- }
- break;
- }
- case SDL_JOYBUTTONDOWN: {
- if (auto joystick = GetSDLJoystickBySDLID(event.jbutton.which)) {
- joystick->SetButton(event.jbutton.button, true);
- }
- break;
- }
- case SDL_JOYHATMOTION: {
- if (auto joystick = GetSDLJoystickBySDLID(event.jhat.which)) {
- joystick->SetHat(event.jhat.hat, event.jhat.value);
- }
- break;
- }
- case SDL_JOYAXISMOTION: {
- if (auto joystick = GetSDLJoystickBySDLID(event.jaxis.which)) {
- joystick->SetAxis(event.jaxis.axis, event.jaxis.value);
- }
- break;
- }
- case SDL_CONTROLLERSENSORUPDATE: {
- if (auto joystick = GetSDLJoystickBySDLID(event.csensor.which)) {
- joystick->SetMotion(event.csensor);
- }
- 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 SDLState::CloseJoysticks() {
- std::lock_guard lock{joystick_map_mutex};
- joystick_map.clear();
-}
-
-class SDLButton final : public Input::ButtonDevice {
-public:
- explicit SDLButton(std::shared_ptr<SDLJoystick> joystick_, int button_, bool toggle_)
- : joystick(std::move(joystick_)), button(button_), toggle(toggle_) {}
-
- bool GetStatus() const override {
- const bool button_state = joystick->GetButton(button);
- if (!toggle) {
- return button_state;
- }
-
- if (button_state) {
- return joystick->ToggleButton(button);
- }
- return joystick->UnlockButton(button);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int button;
- bool toggle;
-};
-
-class SDLDirectionButton final : public Input::ButtonDevice {
-public:
- explicit SDLDirectionButton(std::shared_ptr<SDLJoystick> joystick_, int hat_, Uint8 direction_)
- : joystick(std::move(joystick_)), hat(hat_), direction(direction_) {}
-
- bool GetStatus() const override {
- return joystick->GetHatDirection(hat, direction);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int hat;
- Uint8 direction;
-};
-
-class SDLAxisButton final : public Input::ButtonDevice {
-public:
- explicit SDLAxisButton(std::shared_ptr<SDLJoystick> joystick_, int axis_, float threshold_,
- bool trigger_if_greater_)
- : joystick(std::move(joystick_)), axis(axis_), threshold(threshold_),
- trigger_if_greater(trigger_if_greater_) {}
-
- bool GetStatus() const override {
- const float axis_value = joystick->GetAxis(axis, 1.0f, 0.0f);
- if (trigger_if_greater) {
- return axis_value > threshold;
- }
- return axis_value < threshold;
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int axis;
- float threshold;
- bool trigger_if_greater;
-};
-
-class SDLAnalog final : public Input::AnalogDevice {
-public:
- explicit SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_,
- bool invert_x_, bool invert_y_, float deadzone_, float range_,
- float offset_x_, float offset_y_)
- : joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), invert_x(invert_x_),
- invert_y(invert_y_), deadzone(deadzone_), range(range_), offset_x(offset_x_),
- offset_y(offset_y_) {}
-
- std::tuple<float, float> GetStatus() const override {
- auto [x, y] = joystick->GetAnalog(axis_x, axis_y, range, offset_x, offset_y);
- const float r = std::sqrt((x * x) + (y * y));
- if (invert_x) {
- x = -x;
- }
- if (invert_y) {
- y = -y;
- }
-
- if (r > deadzone) {
- return std::make_tuple(x / r * (r - deadzone) / (1 - deadzone),
- y / r * (r - deadzone) / (1 - deadzone));
- }
- return {};
- }
-
- std::tuple<float, float> GetRawStatus() const override {
- const float x = joystick->GetAxis(axis_x, range, offset_x);
- const float y = joystick->GetAxis(axis_y, range, offset_y);
- return {x, -y};
- }
-
- Input::AnalogProperties GetAnalogProperties() const override {
- return {deadzone, range, 0.5f};
- }
-
- bool GetAnalogDirectionStatus(Input::AnalogDirection direction) const override {
- const auto [x, y] = GetStatus();
- const float directional_deadzone = 0.5f;
- switch (direction) {
- case Input::AnalogDirection::RIGHT:
- return x > directional_deadzone;
- case Input::AnalogDirection::LEFT:
- return x < -directional_deadzone;
- case Input::AnalogDirection::UP:
- return y > directional_deadzone;
- case Input::AnalogDirection::DOWN:
- return y < -directional_deadzone;
- }
- return false;
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- const int axis_x;
- const int axis_y;
- const bool invert_x;
- const bool invert_y;
- const float deadzone;
- const float range;
- const float offset_x;
- const float offset_y;
-};
-
-class SDLVibration final : public Input::VibrationDevice {
-public:
- explicit SDLVibration(std::shared_ptr<SDLJoystick> joystick_)
- : joystick(std::move(joystick_)) {}
-
- u8 GetStatus() const override {
- joystick->RumblePlay(1, 1);
- return joystick->RumblePlay(0, 0);
- }
-
- bool SetRumblePlay(f32 amp_low, [[maybe_unused]] f32 freq_low, f32 amp_high,
- [[maybe_unused]] f32 freq_high) const override {
- const auto process_amplitude = [](f32 amplitude) {
- return static_cast<u16>((amplitude + std::pow(amplitude, 0.3f)) * 0.5f * 0xFFFF);
- };
-
- const auto processed_amp_low = process_amplitude(amp_low);
- const auto processed_amp_high = process_amplitude(amp_high);
-
- return joystick->RumblePlay(processed_amp_low, processed_amp_high);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
-};
-
-class SDLMotion final : public Input::MotionDevice {
-public:
- explicit SDLMotion(std::shared_ptr<SDLJoystick> joystick_) : joystick(std::move(joystick_)) {}
-
- Input::MotionStatus GetStatus() const override {
- return joystick->GetMotion().GetMotion();
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
-};
-
-class SDLDirectionMotion final : public Input::MotionDevice {
-public:
- explicit SDLDirectionMotion(std::shared_ptr<SDLJoystick> joystick_, int hat_, Uint8 direction_)
- : joystick(std::move(joystick_)), hat(hat_), direction(direction_) {}
-
- Input::MotionStatus GetStatus() const override {
- if (joystick->GetHatDirection(hat, direction)) {
- return joystick->GetMotion().GetRandomMotion(2, 6);
- }
- return joystick->GetMotion().GetRandomMotion(0, 0);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int hat;
- Uint8 direction;
-};
-
-class SDLAxisMotion final : public Input::MotionDevice {
-public:
- explicit SDLAxisMotion(std::shared_ptr<SDLJoystick> joystick_, int axis_, float threshold_,
- bool trigger_if_greater_)
- : joystick(std::move(joystick_)), axis(axis_), threshold(threshold_),
- trigger_if_greater(trigger_if_greater_) {}
-
- Input::MotionStatus GetStatus() const override {
- const float axis_value = joystick->GetAxis(axis, 1.0f, 0.0f);
- bool trigger = axis_value < threshold;
- if (trigger_if_greater) {
- trigger = axis_value > threshold;
- }
-
- if (trigger) {
- return joystick->GetMotion().GetRandomMotion(2, 6);
- }
- return joystick->GetMotion().GetRandomMotion(0, 0);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int axis;
- float threshold;
- bool trigger_if_greater;
-};
-
-class SDLButtonMotion final : public Input::MotionDevice {
-public:
- explicit SDLButtonMotion(std::shared_ptr<SDLJoystick> joystick_, int button_)
- : joystick(std::move(joystick_)), button(button_) {}
-
- Input::MotionStatus GetStatus() const override {
- if (joystick->GetButton(button)) {
- return joystick->GetMotion().GetRandomMotion(2, 6);
- }
- return joystick->GetMotion().GetRandomMotion(0, 0);
- }
-
-private:
- std::shared_ptr<SDLJoystick> joystick;
- int button;
-};
-
-/// A button device factory that creates button devices from SDL joystick
-class SDLButtonFactory final : public Input::Factory<Input::ButtonDevice> {
-public:
- explicit SDLButtonFactory(SDLState& state_) : state(state_) {}
-
- /**
- * Creates a button device from a joystick button
- * @param params contains parameters for creating the device:
- * - "guid": the guid of the joystick to bind
- * - "port": the nth joystick of the same type to bind
- * - "button"(optional): the index of the button to bind
- * - "hat"(optional): the index of the hat to bind as direction buttons
- * - "axis"(optional): the index of the axis to bind
- * - "direction"(only used for hat): the direction name of the hat to bind. Can be "up",
- * "down", "left" or "right"
- * - "threshold"(only used for axis): a float value in (-1.0, 1.0) which the button is
- * triggered if the axis value crosses
- * - "direction"(only used for axis): "+" means the button is triggered when the axis
- * value is greater than the threshold; "-" means the button is triggered when the axis
- * value is smaller than the threshold
- */
- std::unique_ptr<Input::ButtonDevice> Create(const Common::ParamPackage& params) override {
- const std::string guid = params.Get("guid", "0");
- const int port = params.Get("port", 0);
- const auto toggle = params.Get("toggle", false);
-
- auto joystick = state.GetSDLJoystickByGUID(guid, port);
-
- if (params.Has("hat")) {
- const int hat = params.Get("hat", 0);
- const std::string direction_name = params.Get("direction", "");
- 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;
- }
- // This is necessary so accessing GetHat with hat won't crash
- joystick->SetHat(hat, SDL_HAT_CENTERED);
- return std::make_unique<SDLDirectionButton>(joystick, hat, direction);
- }
-
- if (params.Has("axis")) {
- const int axis = params.Get("axis", 0);
- // Convert range from (0.0, 1.0) to (-1.0, 1.0)
- const float threshold = (params.Get("threshold", 0.5f) - 0.5f) * 2.0f;
- const std::string direction_name = params.Get("direction", "");
- bool trigger_if_greater;
- if (direction_name == "+") {
- trigger_if_greater = true;
- } else if (direction_name == "-") {
- trigger_if_greater = false;
- } else {
- trigger_if_greater = true;
- LOG_ERROR(Input, "Unknown direction {}", direction_name);
- }
- // This is necessary so accessing GetAxis with axis won't crash
- joystick->PreSetAxis(axis);
- return std::make_unique<SDLAxisButton>(joystick, axis, threshold, trigger_if_greater);
- }
-
- const int button = params.Get("button", 0);
- // This is necessary so accessing GetButton with button won't crash
- joystick->PreSetButton(button);
- return std::make_unique<SDLButton>(joystick, button, toggle);
- }
-
-private:
- SDLState& state;
-};
-
-/// An analog device factory that creates analog devices from SDL joystick
-class SDLAnalogFactory final : public Input::Factory<Input::AnalogDevice> {
-public:
- explicit SDLAnalogFactory(SDLState& state_) : state(state_) {}
- /**
- * Creates an analog device from joystick axes
- * @param params contains parameters for creating the device:
- * - "guid": the guid of the joystick to bind
- * - "port": the nth joystick of the same type
- * - "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> Create(const Common::ParamPackage& params) override {
- const std::string guid = params.Get("guid", "0");
- const int port = params.Get("port", 0);
- const int axis_x = params.Get("axis_x", 0);
- const int axis_y = params.Get("axis_y", 1);
- const float deadzone = std::clamp(params.Get("deadzone", 0.0f), 0.0f, 1.0f);
- const float range = std::clamp(params.Get("range", 1.0f), 0.50f, 1.50f);
- const std::string invert_x_value = params.Get("invert_x", "+");
- const std::string invert_y_value = params.Get("invert_y", "+");
- const bool invert_x = invert_x_value == "-";
- const bool invert_y = invert_y_value == "-";
- const float offset_x = std::clamp(params.Get("offset_x", 0.0f), -0.99f, 0.99f);
- const float offset_y = std::clamp(params.Get("offset_y", 0.0f), -0.99f, 0.99f);
- auto joystick = state.GetSDLJoystickByGUID(guid, port);
-
- // This is necessary so accessing GetAxis with axis_x and axis_y won't crash
- joystick->PreSetAxis(axis_x);
- joystick->PreSetAxis(axis_y);
- return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, invert_x, invert_y, deadzone,
- range, offset_x, offset_y);
- }
-
-private:
- SDLState& state;
-};
-
-/// An vibration device factory that creates vibration devices from SDL joystick
-class SDLVibrationFactory final : public Input::Factory<Input::VibrationDevice> {
-public:
- explicit SDLVibrationFactory(SDLState& state_) : state(state_) {}
- /**
- * Creates a vibration device from a joystick
- * @param params contains parameters for creating the device:
- * - "guid": the guid of the joystick to bind
- * - "port": the nth joystick of the same type
- */
- std::unique_ptr<Input::VibrationDevice> Create(const Common::ParamPackage& params) override {
- const std::string guid = params.Get("guid", "0");
- const int port = params.Get("port", 0);
- return std::make_unique<SDLVibration>(state.GetSDLJoystickByGUID(guid, port));
- }
-
-private:
- SDLState& state;
-};
-
-/// A motion device factory that creates motion devices from SDL joystick
-class SDLMotionFactory final : public Input::Factory<Input::MotionDevice> {
-public:
- explicit SDLMotionFactory(SDLState& state_) : state(state_) {}
- /**
- * Creates motion device from joystick axes
- * @param params contains parameters for creating the device:
- * - "guid": the guid of the joystick to bind
- * - "port": the nth joystick of the same type
- */
- std::unique_ptr<Input::MotionDevice> Create(const Common::ParamPackage& params) override {
- const std::string guid = params.Get("guid", "0");
- const int port = params.Get("port", 0);
-
- auto joystick = state.GetSDLJoystickByGUID(guid, port);
-
- if (params.Has("motion")) {
- return std::make_unique<SDLMotion>(joystick);
- }
-
- if (params.Has("hat")) {
- const int hat = params.Get("hat", 0);
- const std::string direction_name = params.Get("direction", "");
- 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;
- }
- // This is necessary so accessing GetHat with hat won't crash
- joystick->SetHat(hat, SDL_HAT_CENTERED);
- return std::make_unique<SDLDirectionMotion>(joystick, hat, direction);
- }
-
- if (params.Has("axis")) {
- const int axis = params.Get("axis", 0);
- const float threshold = params.Get("threshold", 0.5f);
- const std::string direction_name = params.Get("direction", "");
- bool trigger_if_greater;
- if (direction_name == "+") {
- trigger_if_greater = true;
- } else if (direction_name == "-") {
- trigger_if_greater = false;
- } else {
- trigger_if_greater = true;
- LOG_ERROR(Input, "Unknown direction {}", direction_name);
- }
- // This is necessary so accessing GetAxis with axis won't crash
- joystick->PreSetAxis(axis);
- return std::make_unique<SDLAxisMotion>(joystick, axis, threshold, trigger_if_greater);
- }
-
- const int button = params.Get("button", 0);
- // This is necessary so accessing GetButton with button won't crash
- joystick->PreSetButton(button);
- return std::make_unique<SDLButtonMotion>(joystick, button);
- }
-
-private:
- SDLState& state;
-};
-
-SDLState::SDLState() {
- using namespace Input;
- button_factory = std::make_shared<SDLButtonFactory>(*this);
- analog_factory = std::make_shared<SDLAnalogFactory>(*this);
- vibration_factory = std::make_shared<SDLVibrationFactory>(*this);
- motion_factory = std::make_shared<SDLMotionFactory>(*this);
- RegisterFactory<ButtonDevice>("sdl", button_factory);
- RegisterFactory<AnalogDevice>("sdl", analog_factory);
- RegisterFactory<VibrationDevice>("sdl", vibration_factory);
- RegisterFactory<MotionDevice>("sdl", motion_factory);
-
- 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");
- }
-
- // 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");
-
- // Tell SDL2 to use the hidapi driver. This will allow joycons to be detected as a
- // GameController and not a generic one
- SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_JOY_CONS, "1");
-
- // Turn off Pro controller home led
- SDL_SetHint(SDL_HINT_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) == 0;
- if (start_thread && SDL_Init(SDL_INIT_JOYSTICK) < 0) {
- LOG_CRITICAL(Input, "SDL_Init(SDL_INIT_JOYSTICK) failed with: {}", SDL_GetError());
- return;
- }
- has_gamecontroller = SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER) != 0;
- if (SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1") == SDL_FALSE) {
- LOG_ERROR(Input, "Failed to set hint for background events with: {}", SDL_GetError());
- }
-
- 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);
- }
-}
-
-SDLState::~SDLState() {
- using namespace Input;
- UnregisterFactory<ButtonDevice>("sdl");
- UnregisterFactory<AnalogDevice>("sdl");
- UnregisterFactory<VibrationDevice>("sdl");
- UnregisterFactory<MotionDevice>("sdl");
-
- CloseJoysticks();
- SDL_DelEventWatch(&SDLEventWatcher, this);
-
- initialized = false;
- if (start_thread) {
- poll_thread.join();
- SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
- }
-}
-
-std::vector<Common::ParamPackage> SDLState::GetInputDevices() {
- std::scoped_lock lock(joystick_map_mutex);
- 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;
- }
- std::string name =
- fmt::format("{} {}", joystick->GetControllerName(), joystick->GetPort());
- devices.emplace_back(Common::ParamPackage{
- {"class", "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());
-
- std::string name =
- fmt::format("{} {}", "Nintendo Dual Joy-Con", joystick->GetPort());
- devices.emplace_back(Common::ParamPackage{
- {"class", "sdl"},
- {"display", std::move(name)},
- {"guid", joystick->GetGUID()},
- {"guid2", joystick2->GetGUID()},
- {"port", std::to_string(joystick->GetPort())},
- });
- }
- }
- }
- return devices;
-}
-
-namespace {
-Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, s32 axis,
- float value = 0.1f) {
- Common::ParamPackage params({{"engine", "sdl"}});
- params.Set("port", port);
- params.Set("guid", std::move(guid));
- params.Set("axis", axis);
- params.Set("threshold", "0.5");
- if (value > 0) {
- params.Set("direction", "+");
- } else {
- params.Set("direction", "-");
- }
- return params;
-}
-
-Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, s32 button) {
- Common::ParamPackage params({{"engine", "sdl"}});
- params.Set("port", port);
- params.Set("guid", std::move(guid));
- params.Set("button", button);
- params.Set("toggle", false);
- return params;
-}
-
-Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, s32 hat, s32 value) {
- Common::ParamPackage params({{"engine", "sdl"}});
-
- params.Set("port", port);
- params.Set("guid", std::move(guid));
- params.Set("hat", hat);
- switch (value) {
- case SDL_HAT_UP:
- params.Set("direction", "up");
- break;
- case SDL_HAT_DOWN:
- params.Set("direction", "down");
- break;
- case SDL_HAT_LEFT:
- params.Set("direction", "left");
- break;
- case SDL_HAT_RIGHT:
- params.Set("direction", "right");
- break;
- default:
- return {};
- }
- return params;
-}
-
-Common::ParamPackage BuildMotionParam(int port, std::string guid) {
- Common::ParamPackage params({{"engine", "sdl"}, {"motion", "0"}});
- params.Set("port", port);
- params.Set("guid", std::move(guid));
- return params;
-}
-
-Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Event& event) {
- switch (event.type) {
- case SDL_JOYAXISMOTION: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
- return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jaxis.axis),
- event.jaxis.value);
- }
- break;
- }
- case SDL_JOYBUTTONUP: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which)) {
- return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jbutton.button));
- }
- break;
- }
- case SDL_JOYHATMOTION: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) {
- return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jhat.hat),
- static_cast<s32>(event.jhat.value));
- }
- break;
- }
- }
- return {};
-}
-
-Common::ParamPackage SDLEventToMotionParamPackage(SDLState& state, const SDL_Event& event) {
- switch (event.type) {
- case SDL_JOYAXISMOTION: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
- return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jaxis.axis),
- event.jaxis.value);
- }
- break;
- }
- case SDL_JOYBUTTONUP: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which)) {
- return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jbutton.button));
- }
- break;
- }
- case SDL_JOYHATMOTION: {
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) {
- return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- static_cast<s32>(event.jhat.hat),
- static_cast<s32>(event.jhat.value));
- }
- break;
- }
- case SDL_CONTROLLERSENSORUPDATE: {
- bool is_motion_shaking = false;
- constexpr float gyro_threshold = 5.0f;
- constexpr float accel_threshold = 11.0f;
- if (event.csensor.sensor == SDL_SENSOR_ACCEL) {
- const Common::Vec3f acceleration = {-event.csensor.data[0], event.csensor.data[2],
- -event.csensor.data[1]};
- if (acceleration.Length() > accel_threshold) {
- is_motion_shaking = true;
- }
- }
-
- if (event.csensor.sensor == SDL_SENSOR_GYRO) {
- const Common::Vec3f gyroscope = {event.csensor.data[0], -event.csensor.data[2],
- event.csensor.data[1]};
- if (gyroscope.Length() > gyro_threshold) {
- is_motion_shaking = true;
- }
- }
-
- if (!is_motion_shaking) {
- break;
- }
-
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.csensor.which)) {
- return BuildMotionParam(joystick->GetPort(), joystick->GetGUID());
- }
- break;
- }
- }
- return {};
-}
-
-Common::ParamPackage BuildParamPackageForBinding(int port, const std::string& guid,
- const SDL_GameControllerButtonBind& binding) {
- 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,
- binding.value.hat.hat_mask);
- }
- return {};
-}
-
-Common::ParamPackage BuildParamPackageForAnalog(int port, const std::string& guid, int axis_x,
- int axis_y, float offset_x, float offset_y) {
- Common::ParamPackage params;
- params.Set("engine", "sdl");
- params.Set("port", port);
- params.Set("guid", guid);
- 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;
-}
-} // Anonymous namespace
-
-ButtonMapping SDLState::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 SDLState::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 SDLState::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 SDLState::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 SDLState::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 SDLState::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 SDLState::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")) {
- joystick2->PreSetAxis(binding_left_x.value.axis);
- joystick2->PreSetAxis(binding_left_y.value.axis);
- const auto left_offset_x = -joystick2->GetAxis(binding_left_x.value.axis, 1.0f, 0);
- const auto left_offset_y = -joystick2->GetAxis(binding_left_y.value.axis, 1.0f, 0);
- mapping.insert_or_assign(
- Settings::NativeAnalog::LStick,
- BuildParamPackageForAnalog(joystick2->GetPort(), joystick2->GetGUID(),
- binding_left_x.value.axis, binding_left_y.value.axis,
- left_offset_x, left_offset_y));
- } else {
- joystick->PreSetAxis(binding_left_x.value.axis);
- joystick->PreSetAxis(binding_left_y.value.axis);
- const auto left_offset_x = -joystick->GetAxis(binding_left_x.value.axis, 1.0f, 0);
- const auto left_offset_y = -joystick->GetAxis(binding_left_y.value.axis, 1.0f, 0);
- mapping.insert_or_assign(
- Settings::NativeAnalog::LStick,
- BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
- 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);
- joystick->PreSetAxis(binding_right_x.value.axis);
- joystick->PreSetAxis(binding_right_y.value.axis);
- const auto right_offset_x = -joystick->GetAxis(binding_right_x.value.axis, 1.0f, 0);
- const auto right_offset_y = -joystick->GetAxis(binding_right_y.value.axis, 1.0f, 0);
- mapping.insert_or_assign(Settings::NativeAnalog::RStick,
- BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
- binding_right_x.value.axis,
- binding_right_y.value.axis, right_offset_x,
- right_offset_y));
- return mapping;
-}
-
-MotionMapping SDLState::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;
-}
-namespace Polling {
-class SDLPoller : public InputCommon::Polling::DevicePoller {
-public:
- explicit SDLPoller(SDLState& state_) : state(state_) {}
-
- void Start([[maybe_unused]] const std::string& device_id) override {
- state.event_queue.Clear();
- state.polling = true;
- }
-
- void Stop() override {
- state.polling = false;
- }
-
-protected:
- SDLState& state;
-};
-
-class SDLButtonPoller final : public SDLPoller {
-public:
- explicit SDLButtonPoller(SDLState& state_) : SDLPoller(state_) {}
-
- Common::ParamPackage GetNextInput() override {
- SDL_Event event;
- while (state.event_queue.Pop(event)) {
- const auto package = FromEvent(event);
- if (package) {
- return *package;
- }
- }
- return {};
- }
- [[nodiscard]] std::optional<Common::ParamPackage> FromEvent(SDL_Event& event) {
- switch (event.type) {
- case SDL_JOYAXISMOTION:
- if (!axis_memory.count(event.jaxis.which) ||
- !axis_memory[event.jaxis.which].count(event.jaxis.axis)) {
- axis_memory[event.jaxis.which][event.jaxis.axis] = event.jaxis.value;
- axis_event_count[event.jaxis.which][event.jaxis.axis] = 1;
- break;
- } else {
- axis_event_count[event.jaxis.which][event.jaxis.axis]++;
- // The joystick and axis exist in our map if we take this branch, so no checks
- // needed
- if (std::abs(
- (event.jaxis.value - axis_memory[event.jaxis.which][event.jaxis.axis]) /
- 32767.0) < 0.5) {
- break;
- } else {
- if (axis_event_count[event.jaxis.which][event.jaxis.axis] == 2 &&
- IsAxisAtPole(event.jaxis.value) &&
- IsAxisAtPole(axis_memory[event.jaxis.which][event.jaxis.axis])) {
- // If we have exactly two events and both are near a pole, this is
- // likely a digital input masquerading as an analog axis; Instead of
- // trying to look at the direction the axis travelled, assume the first
- // event was press and the second was release; This should handle most
- // digital axes while deferring to the direction of travel for analog
- // axes
- event.jaxis.value = static_cast<Sint16>(
- std::copysign(32767, axis_memory[event.jaxis.which][event.jaxis.axis]));
- } else {
- // There are more than two events, so this is likely a true analog axis,
- // check the direction it travelled
- event.jaxis.value = static_cast<Sint16>(std::copysign(
- 32767,
- event.jaxis.value - axis_memory[event.jaxis.which][event.jaxis.axis]));
- }
- axis_memory.clear();
- axis_event_count.clear();
- }
- }
- [[fallthrough]];
- case SDL_JOYBUTTONUP:
- case SDL_JOYHATMOTION:
- return {SDLEventToButtonParamPackage(state, event)};
- }
- return std::nullopt;
- }
-
-private:
- // Determine whether an axis value is close to an extreme or center
- // Some controllers have a digital D-Pad as a pair of analog sticks, with 3 possible values per
- // axis, which is why the center must be considered a pole
- bool IsAxisAtPole(int16_t value) const {
- return std::abs(value) >= 32767 || std::abs(value) < 327;
- }
- std::unordered_map<SDL_JoystickID, std::unordered_map<uint8_t, int16_t>> axis_memory;
- std::unordered_map<SDL_JoystickID, std::unordered_map<uint8_t, uint32_t>> axis_event_count;
-};
-
-class SDLMotionPoller final : public SDLPoller {
-public:
- explicit SDLMotionPoller(SDLState& state_) : SDLPoller(state_) {}
-
- Common::ParamPackage GetNextInput() override {
- SDL_Event event;
- while (state.event_queue.Pop(event)) {
- const auto package = FromEvent(event);
- if (package) {
- return *package;
- }
- }
- return {};
- }
- [[nodiscard]] std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) const {
- switch (event.type) {
- case SDL_JOYAXISMOTION:
- if (std::abs(event.jaxis.value / 32767.0) < 0.5) {
- break;
- }
- [[fallthrough]];
- case SDL_JOYBUTTONUP:
- case SDL_JOYHATMOTION:
- case SDL_CONTROLLERSENSORUPDATE:
- return {SDLEventToMotionParamPackage(state, event)};
- }
- return std::nullopt;
- }
-};
-
-/**
- * Attempts to match the press to a controller joy axis (left/right stick) and if a match
- * isn't found, checks if the event matches anything from SDLButtonPoller and uses that
- * instead
- */
-class SDLAnalogPreferredPoller final : public SDLPoller {
-public:
- explicit SDLAnalogPreferredPoller(SDLState& state_)
- : SDLPoller(state_), button_poller(state_) {}
-
- void Start(const std::string& device_id) override {
- SDLPoller::Start(device_id);
- // Reset stored axes
- first_axis = -1;
- }
-
- Common::ParamPackage GetNextInput() override {
- SDL_Event event;
- while (state.event_queue.Pop(event)) {
- if (event.type != SDL_JOYAXISMOTION) {
- // Check for a button press
- auto button_press = button_poller.FromEvent(event);
- if (button_press) {
- return *button_press;
- }
- continue;
- }
- const auto axis = event.jaxis.axis;
-
- // Filter out axis events that are below a threshold
- if (std::abs(event.jaxis.value / 32767.0) < 0.5) {
- continue;
- }
-
- // Filter out axis events that are the same
- if (first_axis == axis) {
- continue;
- }
-
- // In order to return a complete analog param, we need inputs for both axes.
- // If the first axis isn't set we set the value then wait till next event
- if (first_axis == -1) {
- first_axis = axis;
- continue;
- }
-
- if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
- // Set offset to zero since the joystick is not on center
- auto params = BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
- first_axis, axis, 0, 0);
- first_axis = -1;
- return params;
- }
- }
- return {};
- }
-
-private:
- int first_axis = -1;
- SDLButtonPoller button_poller;
-};
-} // namespace Polling
-
-SDLState::Pollers SDLState::GetPollers(InputCommon::Polling::DeviceType type) {
- Pollers pollers;
-
- switch (type) {
- case InputCommon::Polling::DeviceType::AnalogPreferred:
- pollers.emplace_back(std::make_unique<Polling::SDLAnalogPreferredPoller>(*this));
- break;
- case InputCommon::Polling::DeviceType::Button:
- pollers.emplace_back(std::make_unique<Polling::SDLButtonPoller>(*this));
- break;
- case InputCommon::Polling::DeviceType::Motion:
- pollers.emplace_back(std::make_unique<Polling::SDLMotionPoller>(*this));
- break;
- }
-
- return pollers;
-}
-
-} // namespace InputCommon::SDL
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