From 59b995a9e53f09b9831b03608cfe5ce27c3e3485 Mon Sep 17 00:00:00 2001 From: german77 Date: Mon, 20 Sep 2021 17:36:23 -0500 Subject: [PATCH] input_common: Rewrite SDL --- src/input_common/CMakeLists.txt | 8 +- src/input_common/drivers/sdl_driver.cpp | 915 +++++++++ .../{sdl/sdl_impl.h => drivers/sdl_driver.h} | 56 +- src/input_common/sdl/sdl.cpp | 19 - src/input_common/sdl/sdl.h | 51 - src/input_common/sdl/sdl_impl.cpp | 1658 ----------------- 6 files changed, 950 insertions(+), 1757 deletions(-) create mode 100644 src/input_common/drivers/sdl_driver.cpp rename src/input_common/{sdl/sdl_impl.h => drivers/sdl_driver.h} (67%) delete mode 100644 src/input_common/sdl/sdl.cpp delete mode 100644 src/input_common/sdl/sdl.h delete mode 100644 src/input_common/sdl/sdl_impl.cpp diff --git a/src/input_common/CMakeLists.txt b/src/input_common/CMakeLists.txt index 9c0c82138..8cdcd315b 100644 --- a/src/input_common/CMakeLists.txt +++ b/src/input_common/CMakeLists.txt @@ -5,6 +5,8 @@ add_library(input_common STATIC drivers/keyboard.h drivers/mouse.cpp drivers/mouse.h + drivers/sdl_driver.cpp + drivers/sdl_driver.h drivers/tas_input.cpp drivers/tas_input.h drivers/touch_screen.cpp @@ -29,8 +31,6 @@ add_library(input_common STATIC motion_from_button.h motion_input.cpp motion_input.h - sdl/sdl.cpp - sdl/sdl.h ) if (MSVC) @@ -57,8 +57,8 @@ endif() if (ENABLE_SDL2) target_sources(input_common PRIVATE - sdl/sdl_impl.cpp - sdl/sdl_impl.h + drivers/sdl_driver.cpp + drivers/sdl_driver.h ) target_link_libraries(input_common PRIVATE SDL2) target_compile_definitions(input_common PRIVATE HAVE_SDL2) diff --git a/src/input_common/drivers/sdl_driver.cpp b/src/input_common/drivers/sdl_driver.cpp new file mode 100644 index 000000000..efb4a2106 --- /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(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(vibration.low_amplitude), + static_cast(vibration.high_amplitude), rumble_max_duration_ms) != -1; + } else if (sdl_joystick) { + return SDL_JoystickRumble(sdl_joystick.get(), static_cast(vibration.low_amplitude), + static_cast(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(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; + std::unique_ptr sdl_controller; + mutable std::mutex mutex; + + u64 last_motion_update{}; + bool has_gyro{false}; + bool has_accel{false}; + BasicMotion motion; +}; + +std::shared_ptr 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(port)) { + auto joystick = std::make_shared(guid, static_cast(it->second.size()), + nullptr, nullptr); + it->second.emplace_back(std::move(joystick)); + } + + return it->second[static_cast(port)]; + } + + auto joystick = std::make_shared(guid, 0, nullptr, nullptr); + + return joystick_map[guid].emplace_back(std::move(joystick)); +} + +std::shared_ptr 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(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(joystick_guid_list.size()); + auto joystick = std::make_shared(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 SDLDriver::GetInputDevices() const { + std::vector devices; + std::unordered_map> 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(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(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(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& 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& 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& joystick, + const std::shared_ptr& 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 diff --git a/src/input_common/sdl/sdl_impl.h b/src/input_common/drivers/sdl_driver.h similarity index 67% rename from src/input_common/sdl/sdl_impl.h rename to src/input_common/drivers/sdl_driver.h index 7a9ad6346..d8d350184 100644 --- a/src/input_common/sdl/sdl_impl.h +++ b/src/input_common/drivers/sdl_driver.h @@ -5,7 +5,6 @@ #pragma once #include -#include #include #include #include @@ -13,8 +12,7 @@ #include #include "common/common_types.h" -#include "common/threadsafe_queue.h" -#include "input_common/sdl/sdl.h" +#include "input_common/input_engine.h" union SDL_Event; using SDL_GameController = struct _SDL_GameController; @@ -26,21 +24,17 @@ using ButtonBindings = using ZButtonBindings = std::array, 2>; -namespace InputCommon::SDL { +namespace InputCommon { -class SDLAnalogFactory; -class SDLButtonFactory; -class SDLMotionFactory; -class SDLVibrationFactory; class SDLJoystick; -class SDLState : public State { +class SDLDriver : public InputCommon::InputEngine { public: /// Initializes and registers SDL device factories - SDLState(); + SDLDriver(const std::string& input_engine_); /// Unregisters SDL device factories and shut them down. - ~SDLState() override; + ~SDLDriver() override; /// Handle SDL_Events for joysticks from SDL_PollEvent void HandleGameControllerEvent(const SDL_Event& event); @@ -54,18 +48,18 @@ public: */ std::shared_ptr GetSDLJoystickByGUID(const std::string& guid, int port); - /// Get all DevicePoller that use the SDL backend for a specific device type - Pollers GetPollers(Polling::DeviceType type) override; - - /// Used by the Pollers during config - std::atomic polling = false; - Common::SPSCQueue event_queue; - - std::vector GetInputDevices() override; + std::vector GetInputDevices() const override; ButtonMapping GetButtonMappingForDevice(const Common::ParamPackage& params) override; AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage& params) override; MotionMapping GetMotionMappingForDevice(const Common::ParamPackage& params) override; + std::string GetUIName(const Common::ParamPackage& params) const override; + + std::string GetHatButtonName(u8 direction_value) const override; + u8 GetHatButtonId(const std::string direction_name) const override; + + bool SetRumble(const PadIdentifier& identifier, + const Input::VibrationStatus vibration) override; private: void InitJoystick(int joystick_index); @@ -74,6 +68,23 @@ private: /// Needs to be called before SDL_QuitSubSystem. void CloseJoysticks(); + Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, s32 axis, + float value = 0.1f) const; + Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, + s32 button) const; + + Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, s32 hat, + u8 value) const; + + Common::ParamPackage BuildMotionParam(int port, std::string guid) const; + + Common::ParamPackage BuildParamPackageForBinding( + int port, const std::string& guid, const SDL_GameControllerButtonBind& binding) const; + + Common::ParamPackage BuildParamPackageForAnalog(PadIdentifier identifier, int axis_x, + int axis_y, float offset_x, + float offset_y) const; + /// Returns the default button bindings list for generic controllers ButtonBindings GetDefaultButtonBinding() const; @@ -101,14 +112,9 @@ private: std::unordered_map>> joystick_map; std::mutex joystick_map_mutex; - std::shared_ptr button_factory; - std::shared_ptr analog_factory; - std::shared_ptr vibration_factory; - std::shared_ptr motion_factory; - bool start_thread = false; std::atomic initialized = false; std::thread poll_thread; }; -} // namespace InputCommon::SDL +} // namespace InputCommon diff --git a/src/input_common/sdl/sdl.cpp b/src/input_common/sdl/sdl.cpp deleted file mode 100644 index 644db3448..000000000 --- a/src/input_common/sdl/sdl.cpp +++ /dev/null @@ -1,19 +0,0 @@ -// Copyright 2018 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include "input_common/sdl/sdl.h" -#ifdef HAVE_SDL2 -#include "input_common/sdl/sdl_impl.h" -#endif - -namespace InputCommon::SDL { - -std::unique_ptr Init() { -#ifdef HAVE_SDL2 - return std::make_unique(); -#else - return std::make_unique(); -#endif -} -} // namespace InputCommon::SDL diff --git a/src/input_common/sdl/sdl.h b/src/input_common/sdl/sdl.h deleted file mode 100644 index b5d41bba4..000000000 --- a/src/input_common/sdl/sdl.h +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright 2018 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include -#include -#include "common/param_package.h" -#include "input_common/main.h" - -namespace InputCommon::Polling { -class DevicePoller; -enum class DeviceType; -} // namespace InputCommon::Polling - -namespace InputCommon::SDL { - -class State { -public: - using Pollers = std::vector>; - - /// Unregisters SDL device factories and shut them down. - virtual ~State() = default; - - virtual Pollers GetPollers(Polling::DeviceType) { - return {}; - } - - virtual std::vector GetInputDevices() { - return {}; - } - - virtual ButtonMapping GetButtonMappingForDevice(const Common::ParamPackage&) { - return {}; - } - virtual AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage&) { - return {}; - } - virtual MotionMapping GetMotionMappingForDevice(const Common::ParamPackage&) { - return {}; - } -}; - -class NullState : public State { -public: -}; - -std::unique_ptr Init(); - -} // namespace InputCommon::SDL diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp deleted file mode 100644 index ecb00d428..000000000 --- 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#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(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(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 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 buttons; - std::unordered_map toggle_buttons{}; - std::unordered_map lock_buttons{}; - std::unordered_map axes; - std::unordered_map hats; - } state; - std::string guid; - int port; - std::unique_ptr sdl_joystick; - std::unique_ptr 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 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(port)) { - auto joystick = std::make_shared(guid, static_cast(it->second.size()), - nullptr, nullptr); - it->second.emplace_back(std::move(joystick)); - } - - return it->second[static_cast(port)]; - } - - auto joystick = std::make_shared(guid, 0, nullptr, nullptr); - - return joystick_map[guid].emplace_back(std::move(joystick)); -} - -std::shared_ptr 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(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(joystick_guid_list.size()); - auto joystick = std::make_shared(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 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 joystick; - int button; - bool toggle; -}; - -class SDLDirectionButton final : public Input::ButtonDevice { -public: - explicit SDLDirectionButton(std::shared_ptr 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 joystick; - int hat; - Uint8 direction; -}; - -class SDLAxisButton final : public Input::ButtonDevice { -public: - explicit SDLAxisButton(std::shared_ptr 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 joystick; - int axis; - float threshold; - bool trigger_if_greater; -}; - -class SDLAnalog final : public Input::AnalogDevice { -public: - explicit SDLAnalog(std::shared_ptr 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 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 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 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 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((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 joystick; -}; - -class SDLMotion final : public Input::MotionDevice { -public: - explicit SDLMotion(std::shared_ptr joystick_) : joystick(std::move(joystick_)) {} - - Input::MotionStatus GetStatus() const override { - return joystick->GetMotion().GetMotion(); - } - -private: - std::shared_ptr joystick; -}; - -class SDLDirectionMotion final : public Input::MotionDevice { -public: - explicit SDLDirectionMotion(std::shared_ptr 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 joystick; - int hat; - Uint8 direction; -}; - -class SDLAxisMotion final : public Input::MotionDevice { -public: - explicit SDLAxisMotion(std::shared_ptr 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 joystick; - int axis; - float threshold; - bool trigger_if_greater; -}; - -class SDLButtonMotion final : public Input::MotionDevice { -public: - explicit SDLButtonMotion(std::shared_ptr 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 joystick; - int button; -}; - -/// A button device factory that creates button devices from SDL joystick -class SDLButtonFactory final : public Input::Factory { -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 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(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(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(joystick, button, toggle); - } - -private: - SDLState& state; -}; - -/// An analog device factory that creates analog devices from SDL joystick -class SDLAnalogFactory final : public Input::Factory { -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 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(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 { -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 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(state.GetSDLJoystickByGUID(guid, port)); - } - -private: - SDLState& state; -}; - -/// A motion device factory that creates motion devices from SDL joystick -class SDLMotionFactory final : public Input::Factory { -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 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(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(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(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(joystick, button); - } - -private: - SDLState& state; -}; - -SDLState::SDLState() { - using namespace Input; - button_factory = std::make_shared(*this); - analog_factory = std::make_shared(*this); - vibration_factory = std::make_shared(*this); - motion_factory = std::make_shared(*this); - RegisterFactory("sdl", button_factory); - RegisterFactory("sdl", analog_factory); - RegisterFactory("sdl", vibration_factory); - RegisterFactory("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("sdl"); - UnregisterFactory("sdl"); - UnregisterFactory("sdl"); - UnregisterFactory("sdl"); - - CloseJoysticks(); - SDL_DelEventWatch(&SDLEventWatcher, this); - - initialized = false; - if (start_thread) { - poll_thread.join(); - SDL_QuitSubSystem(SDL_INIT_JOYSTICK); - } -} - -std::vector SDLState::GetInputDevices() { - std::scoped_lock lock(joystick_map_mutex); - std::vector devices; - std::unordered_map> 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(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(event.jbutton.button)); - } - break; - } - case SDL_JOYHATMOTION: { - if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) { - return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), - static_cast(event.jhat.hat), - static_cast(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(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(event.jbutton.button)); - } - break; - } - case SDL_JOYHATMOTION: { - if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) { - return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), - static_cast(event.jhat.hat), - static_cast(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& 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& 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& joystick, - const std::shared_ptr& 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 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( - 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(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> axis_memory; - std::unordered_map> 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 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(*this)); - break; - case InputCommon::Polling::DeviceType::Button: - pollers.emplace_back(std::make_unique(*this)); - break; - case InputCommon::Polling::DeviceType::Motion: - pollers.emplace_back(std::make_unique(*this)); - break; - } - - return pollers; -} - -} // namespace InputCommon::SDL