diff options
Diffstat (limited to 'src/input_common/sdl/sdl_impl.cpp')
| -rw-r--r-- | src/input_common/sdl/sdl_impl.cpp | 665 |
1 files changed, 558 insertions, 107 deletions
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp index 675b477fa3..bd480570aa 100644 --- a/src/input_common/sdl/sdl_impl.cpp +++ b/src/input_common/sdl/sdl_impl.cpp @@ -3,10 +3,14 @@ // 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> @@ -15,15 +19,17 @@ #include <vector> #include <SDL.h> #include "common/logging/log.h" -#include "common/math_util.h" #include "common/param_package.h" #include "common/threadsafe_queue.h" #include "core/frontend/input.h" +#include "input_common/motion_input.h" #include "input_common/sdl/sdl_impl.h" +#include "input_common/settings.h" namespace InputCommon::SDL { -static std::string GetGUID(SDL_Joystick* joystick) { +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)); @@ -31,7 +37,8 @@ static std::string GetGUID(SDL_Joystick* joystick) { } /// Creates a ParamPackage from an SDL_Event that can directly be used to create a ButtonDevice -static Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Event& event); +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); @@ -48,8 +55,10 @@ static int SDLEventWatcher(void* user_data, SDL_Event* event) { class SDLJoystick { public: - SDLJoystick(std::string guid_, int port_, SDL_Joystick* joystick) - : guid{std::move(guid_)}, port{port_}, sdl_joystick{joystick, &SDL_JoystickClose} {} + SDLJoystick(std::string guid_, int port_, SDL_Joystick* joystick, + SDL_GameController* gamecontroller) + : guid{std::move(guid_)}, port{port_}, sdl_joystick{joystick, &SDL_JoystickClose}, + sdl_controller{gamecontroller, &SDL_GameControllerClose} {} void SetButton(int button, bool value) { std::lock_guard lock{mutex}; @@ -66,14 +75,41 @@ public: state.axes.insert_or_assign(axis, value); } - float GetAxis(int axis) const { + float GetAxis(int axis, float range) const { std::lock_guard lock{mutex}; - return state.axes.at(axis) / 32767.0f; + return state.axes.at(axis) / (32767.0f * range); } - std::tuple<float, float> GetAnalog(int axis_x, int axis_y) const { - float x = GetAxis(axis_x); - float y = GetAxis(axis_y); + bool RumblePlay(f32 amp_low, f32 amp_high, int time) { + const u16 raw_amp_low = static_cast<u16>(amp_low * 0xFFFF); + const u16 raw_amp_high = static_cast<u16>(amp_high * 0xFFFF); + // Lower drastically the number of state changes + if (raw_amp_low >> 11 == last_state_rumble_low >> 11 && + raw_amp_high >> 11 == last_state_rumble_high >> 11) { + if (raw_amp_low + raw_amp_high != 0 || + last_state_rumble_low + last_state_rumble_high == 0) { + return false; + } + } + // Don't change state if last vibration was < 20ms + const auto now = std::chrono::system_clock::now(); + if (std::chrono::duration_cast<std::chrono::milliseconds>(now - last_vibration) < + std::chrono::milliseconds(20)) { + return raw_amp_low + raw_amp_high == 0; + } + + last_vibration = now; + last_state_rumble_low = raw_amp_low; + last_state_rumble_high = raw_amp_high; + if (sdl_joystick) { + SDL_JoystickRumble(sdl_joystick.get(), raw_amp_low, raw_amp_high, time); + } + return false; + } + + std::tuple<float, float> GetAnalog(int axis_x, int axis_y, float range) const { + float x = GetAxis(axis_x, range); + float y = GetAxis(axis_y, range); y = -y; // 3DS uses an y-axis inverse from SDL // Make sure the coordinates are in the unit circle, @@ -88,6 +124,10 @@ public: return std::make_tuple(x, y); } + const InputCommon::MotionInput& GetMotion() const { + return motion; + } + void SetHat(int hat, Uint8 direction) { std::lock_guard lock{mutex}; state.hats.insert_or_assign(hat, direction); @@ -115,10 +155,15 @@ public: return sdl_joystick.get(); } - void SetSDLJoystick(SDL_Joystick* joystick) { + void SetSDLJoystick(SDL_Joystick* joystick, SDL_GameController* controller) { + sdl_controller.reset(controller); sdl_joystick.reset(joystick); } + SDL_GameController* GetSDLGameController() const { + return sdl_controller.get(); + } + private: struct State { std::unordered_map<int, bool> buttons; @@ -127,8 +172,15 @@ private: } state; std::string guid; int port; + u16 last_state_rumble_high; + u16 last_state_rumble_low; + std::chrono::time_point<std::chrono::system_clock> last_vibration; 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 initalized without PID values as motion input is not aviable for SDL2 + InputCommon::MotionInput motion{0.0f, 0.0f, 0.0f}; }; std::shared_ptr<SDLJoystick> SDLState::GetSDLJoystickByGUID(const std::string& guid, int port) { @@ -136,18 +188,19 @@ std::shared_ptr<SDLJoystick> SDLState::GetSDLJoystickByGUID(const std::string& g 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); + 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[port]; } - auto joystick = std::make_shared<SDLJoystick>(guid, 0, nullptr); + 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); + auto sdl_controller = SDL_GameControllerFromInstanceID(sdl_id); const std::string guid = GetGUID(sdl_joystick); std::lock_guard lock{joystick_map_mutex}; @@ -171,32 +224,36 @@ std::shared_ptr<SDLJoystick> SDLState::GetSDLJoystickBySDLID(SDL_JoystickID sdl_ }); if (nullptr_it != map_it->second.end()) { // ... and map it - (*nullptr_it)->SetSDLJoystick(sdl_joystick); + (*nullptr_it)->SetSDLJoystick(sdl_joystick, sdl_controller); return *nullptr_it; } // There is no SDLJoystick without a mapped SDL_Joystick // Create a new SDLJoystick const int port = static_cast<int>(map_it->second.size()); - auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick); + auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick, sdl_controller); return map_it->second.emplace_back(std::move(joystick)); } - auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick); + auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick, sdl_controller); return joystick_map[guid].emplace_back(std::move(joystick)); } 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); + 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); + auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick, sdl_gamecontroller); joystick_map[guid].emplace_back(std::move(joystick)); return; } @@ -205,11 +262,11 @@ void SDLState::InitJoystick(int joystick_index) { joystick_guid_list.begin(), joystick_guid_list.end(), [](const std::shared_ptr<SDLJoystick>& joystick) { return !joystick->GetSDLJoystick(); }); if (it != joystick_guid_list.end()) { - (*it)->SetSDLJoystick(sdl_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); + auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick, sdl_gamecontroller); joystick_guid_list.emplace_back(std::move(joystick)); } @@ -231,7 +288,7 @@ void SDLState::CloseJoystick(SDL_Joystick* sdl_joystick) { // Destruct SDL_Joystick outside the lock guard because SDL can internally call the // event callback which locks the mutex again. - joystick->SetSDLJoystick(nullptr); + joystick->SetSDLJoystick(nullptr, nullptr); } void SDLState::HandleGameControllerEvent(const SDL_Event& event) { @@ -285,6 +342,12 @@ public: return joystick->GetButton(button); } + bool SetRumblePlay(f32 amp_high, f32 amp_low, f32 freq_high, f32 freq_low) const override { + const f32 new_amp_low = pow(amp_low, 0.5f) * (3.0f - 2.0f * pow(amp_low, 0.15f)); + const f32 new_amp_high = pow(amp_high, 0.5f) * (3.0f - 2.0f * pow(amp_high, 0.15f)); + return joystick->RumblePlay(new_amp_low, new_amp_high, 250); + } + private: std::shared_ptr<SDLJoystick> joystick; int button; @@ -313,7 +376,7 @@ public: trigger_if_greater(trigger_if_greater_) {} bool GetStatus() const override { - const float axis_value = joystick->GetAxis(axis); + const float axis_value = joystick->GetAxis(axis, 1.0f); if (trigger_if_greater) { return axis_value > threshold; } @@ -329,22 +392,24 @@ private: class SDLAnalog final : public Input::AnalogDevice { public: - SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_, float deadzone_) - : joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_) {} + SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_, float deadzone_, + float range_) + : joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_), + range(range_) {} std::tuple<float, float> GetStatus() const override { - const auto [x, y] = joystick->GetAnalog(axis_x, axis_y); + const auto [x, y] = joystick->GetAnalog(axis_x, axis_y, range); const float r = std::sqrt((x * x) + (y * y)); if (r > deadzone) { return std::make_tuple(x / r * (r - deadzone) / (1 - deadzone), y / r * (r - deadzone) / (1 - deadzone)); } - return std::make_tuple<float, float>(0.0f, 0.0f); + return {}; } bool GetAnalogDirectionStatus(Input::AnalogDirection direction) const override { const auto [x, y] = GetStatus(); - const float directional_deadzone = 0.4f; + const float directional_deadzone = 0.5f; switch (direction) { case Input::AnalogDirection::RIGHT: return x > directional_deadzone; @@ -363,6 +428,69 @@ private: const int axis_x; const int axis_y; const float deadzone; + const float range; +}; + +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); + 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 @@ -457,14 +585,78 @@ public: 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, .99f); - + 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); auto joystick = state.GetSDLJoystickByGUID(guid, port); // This is necessary so accessing GetAxis with axis_x and axis_y won't crash joystick->SetAxis(axis_x, 0); joystick->SetAxis(axis_y, 0); - return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, deadzone); + return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, deadzone, range); + } + +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("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->SetAxis(axis, 0); + 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->SetButton(button, false); + return std::make_unique<SDLButtonMotion>(joystick, button); } private: @@ -473,8 +665,12 @@ private: SDLState::SDLState() { using namespace Input; - RegisterFactory<ButtonDevice>("sdl", std::make_shared<SDLButtonFactory>(*this)); - RegisterFactory<AnalogDevice>("sdl", std::make_shared<SDLAnalogFactory>(*this)); + analog_factory = std::make_shared<SDLAnalogFactory>(*this); + button_factory = std::make_shared<SDLButtonFactory>(*this); + motion_factory = std::make_shared<SDLMotionFactory>(*this); + RegisterFactory<AnalogDevice>("sdl", analog_factory); + RegisterFactory<ButtonDevice>("sdl", button_factory); + RegisterFactory<MotionDevice>("sdl", motion_factory); // If the frontend is going to manage the event loop, then we dont start one here start_thread = !SDL_WasInit(SDL_INIT_JOYSTICK); @@ -482,6 +678,7 @@ SDLState::SDLState() { LOG_CRITICAL(Input, "SDL_Init(SDL_INIT_JOYSTICK) failed with: {}", SDL_GetError()); return; } + has_gamecontroller = SDL_InitSubSystem(SDL_INIT_GAMECONTROLLER); 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()); } @@ -494,7 +691,7 @@ SDLState::SDLState() { using namespace std::chrono_literals; while (initialized) { SDL_PumpEvents(); - std::this_thread::sleep_for(10ms); + std::this_thread::sleep_for(5ms); } }); } @@ -509,6 +706,7 @@ SDLState::~SDLState() { using namespace Input; UnregisterFactory<ButtonDevice>("sdl"); UnregisterFactory<AnalogDevice>("sdl"); + UnregisterFactory<MotionDevice>("sdl"); CloseJoysticks(); SDL_DelEventWatch(&SDLEventWatcher, this); @@ -520,65 +718,251 @@ SDLState::~SDLState() { } } -static Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Event& event) { +std::vector<Common::ParamPackage> SDLState::GetInputDevices() { + std::scoped_lock lock(joystick_map_mutex); + std::vector<Common::ParamPackage> devices; + for (const auto& [key, value] : joystick_map) { + for (const auto& joystick : value) { + auto joy = joystick->GetSDLJoystick(); + if (auto controller = joystick->GetSDLGameController()) { + std::string name = + fmt::format("{} {}", SDL_GameControllerName(controller), joystick->GetPort()); + devices.emplace_back(Common::ParamPackage{ + {"class", "sdl"}, + {"display", std::move(name)}, + {"guid", joystick->GetGUID()}, + {"port", std::to_string(joystick->GetPort())}, + }); + } else if (joy) { + std::string name = fmt::format("{} {}", SDL_JoystickName(joy), joystick->GetPort()); + devices.emplace_back(Common::ParamPackage{ + {"class", "sdl"}, + {"display", std::move(name)}, + {"guid", joystick->GetGUID()}, + {"port", std::to_string(joystick->GetPort())}, + }); + } + } + } + return devices; +} + +namespace { +Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, u8 axis, + float value = 0.1f) { Common::ParamPackage params({{"engine", "sdl"}}); + params.Set("port", port); + params.Set("guid", std::move(guid)); + params.Set("axis", axis); + if (value > 0) { + params.Set("direction", "+"); + params.Set("threshold", "0.5"); + } else { + params.Set("direction", "-"); + params.Set("threshold", "-0.5"); + } + return params; +} + +Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, u8 button) { + Common::ParamPackage params({{"engine", "sdl"}}); + params.Set("port", port); + params.Set("guid", std::move(guid)); + params.Set("button", button); + return params; +} +Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, u8 hat, u8 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 SDLEventToButtonParamPackage(SDLState& state, const SDL_Event& event) { switch (event.type) { case SDL_JOYAXISMOTION: { const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which); - params.Set("port", joystick->GetPort()); - params.Set("guid", joystick->GetGUID()); - params.Set("axis", event.jaxis.axis); - if (event.jaxis.value > 0) { - params.Set("direction", "+"); - params.Set("threshold", "0.5"); - } else { - params.Set("direction", "-"); - params.Set("threshold", "-0.5"); - } - break; + return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jaxis.axis, event.jaxis.value); } case SDL_JOYBUTTONUP: { const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which); - params.Set("port", joystick->GetPort()); - params.Set("guid", joystick->GetGUID()); - params.Set("button", event.jbutton.button); - break; + return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jbutton.button); } case SDL_JOYHATMOTION: { const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which); - params.Set("port", joystick->GetPort()); - params.Set("guid", joystick->GetGUID()); - params.Set("hat", event.jhat.hat); - switch (event.jhat.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 {}; - } - break; + return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jhat.hat, event.jhat.value); + } + } + return {}; +} + +Common::ParamPackage SDLEventToMotionParamPackage(SDLState& state, const SDL_Event& event) { + switch (event.type) { + case SDL_JOYAXISMOTION: { + const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which); + return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jaxis.axis, event.jaxis.value); } + case SDL_JOYBUTTONUP: { + const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which); + return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jbutton.button); } + case SDL_JOYHATMOTION: { + const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which); + return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(), + event.jhat.hat, event.jhat.value); + } + } + return {}; +} + +Common::ParamPackage BuildParamPackageForBinding(int port, const std::string& guid, + const SDL_GameControllerButtonBind& binding) { + switch (binding.bindType) { + 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) { + 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); return params; } +} // Anonymous namespace -namespace Polling { +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 + using ButtonBindings = + std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerButton>, 17>; + static constexpr ButtonBindings switch_to_sdl_button{{ + {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}, + }}; + + // Add the missing bindings for ZL/ZR + using ZBindings = + std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerAxis>, 2>; + static constexpr ZBindings switch_to_sdl_axis{{ + {Settings::NativeButton::ZL, SDL_CONTROLLER_AXIS_TRIGGERLEFT}, + {Settings::NativeButton::ZR, SDL_CONTROLLER_AXIS_TRIGGERRIGHT}, + }}; + + ButtonMapping mapping; + mapping.reserve(switch_to_sdl_button.size() + switch_to_sdl_axis.size()); + + 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; +} + +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)); + 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); + mapping.insert_or_assign(Settings::NativeAnalog::LStick, + BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), + binding_left_x.value.axis, + binding_left_y.value.axis)); + const auto& binding_right_x = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX); + const auto& binding_right_y = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY); + mapping.insert_or_assign(Settings::NativeAnalog::RStick, + BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), + binding_right_x.value.axis, + binding_right_y.value.axis)); + return mapping; +} +namespace Polling { class SDLPoller : public InputCommon::Polling::DevicePoller { public: explicit SDLPoller(SDLState& state_) : state(state_) {} - void Start() override { + void Start(const std::string& device_id) override { state.event_queue.Clear(); state.polling = true; } @@ -598,71 +982,135 @@ public: Common::ParamPackage GetNextInput() override { SDL_Event event; while (state.event_queue.Pop(event)) { - switch (event.type) { - case SDL_JOYAXISMOTION: - if (std::abs(event.jaxis.value / 32767.0) < 0.5) { - break; - } - [[fallthrough]]; - case SDL_JOYBUTTONUP: - case SDL_JOYHATMOTION: - return SDLEventToButtonParamPackage(state, 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: + return {SDLEventToButtonParamPackage(state, event)}; + } + return std::nullopt; + } }; -class SDLAnalogPoller final : public SDLPoller { +class SDLMotionPoller final : public SDLPoller { public: - explicit SDLAnalogPoller(SDLState& state_) : SDLPoller(state_) {} + explicit SDLMotionPoller(SDLState& state_) : SDLPoller(state_) {} - void Start() override { - SDLPoller::Start(); + 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: + 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); + // Load the game controller // Reset stored axes analog_x_axis = -1; analog_y_axis = -1; - analog_axes_joystick = -1; } Common::ParamPackage GetNextInput() override { SDL_Event event; while (state.event_queue.Pop(event)) { - if (event.type != SDL_JOYAXISMOTION || std::abs(event.jaxis.value / 32767.0) < 0.5) { + // Filter out axis events that are below a threshold + if (event.type == SDL_JOYAXISMOTION && std::abs(event.jaxis.value / 32767.0) < 0.5) { continue; } - // An analog device needs two axes, so we need to store the axis for later and wait for - // a second SDL event. The axes also must be from the same joystick. - const int axis = event.jaxis.axis; - if (analog_x_axis == -1) { - analog_x_axis = axis; - analog_axes_joystick = event.jaxis.which; - } else if (analog_y_axis == -1 && analog_x_axis != axis && - analog_axes_joystick == event.jaxis.which) { - analog_y_axis = axis; + // Simplify controller config by testing if game controller support is enabled. + if (event.type == SDL_JOYAXISMOTION) { + const auto axis = event.jaxis.axis; + const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which); + const auto controller = joystick->GetSDLGameController(); + if (controller) { + const auto axis_left_x = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX) + .value.axis; + const auto axis_left_y = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY) + .value.axis; + const auto axis_right_x = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX) + .value.axis; + const auto axis_right_y = + SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY) + .value.axis; + + if (axis == axis_left_x || axis == axis_left_y) { + analog_x_axis = axis_left_x; + analog_y_axis = axis_left_y; + break; + } else if (axis == axis_right_x || axis == axis_right_y) { + analog_x_axis = axis_right_x; + analog_y_axis = axis_right_y; + break; + } + } + } + + // If the press wasn't accepted as a joy axis, check for a button press + auto button_press = button_poller.FromEvent(event); + if (button_press) { + return *button_press; } } - Common::ParamPackage params; + if (analog_x_axis != -1 && analog_y_axis != -1) { const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which); - params.Set("engine", "sdl"); - params.Set("port", joystick->GetPort()); - params.Set("guid", joystick->GetGUID()); - params.Set("axis_x", analog_x_axis); - params.Set("axis_y", analog_y_axis); + auto params = BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), + analog_x_axis, analog_y_axis); analog_x_axis = -1; analog_y_axis = -1; - analog_axes_joystick = -1; return params; } - return params; + return {}; } private: int analog_x_axis = -1; int analog_y_axis = -1; - SDL_JoystickID analog_axes_joystick = -1; + SDLButtonPoller button_poller; }; } // namespace Polling @@ -670,12 +1118,15 @@ SDLState::Pollers SDLState::GetPollers(InputCommon::Polling::DeviceType type) { Pollers pollers; switch (type) { - case InputCommon::Polling::DeviceType::Analog: - pollers.emplace_back(std::make_unique<Polling::SDLAnalogPoller>(*this)); + 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; |