diff options
Diffstat (limited to '')
-rw-r--r-- | src/input_common/sdl/sdl_impl.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp index a9e676f4b..0b0095978 100644 --- a/src/input_common/sdl/sdl_impl.cpp +++ b/src/input_common/sdl/sdl_impl.cpp @@ -21,6 +21,7 @@ #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" @@ -95,6 +96,10 @@ 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); @@ -142,6 +147,9 @@ private: 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) { @@ -386,6 +394,68 @@ private: 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 class SDLButtonFactory final : public Input::Factory<Input::ButtonDevice> { public: @@ -492,12 +562,78 @@ 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: + SDLState& state; +}; + SDLState::SDLState() { using namespace Input; 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); @@ -533,6 +669,7 @@ SDLState::~SDLState() { using namespace Input; UnregisterFactory<ButtonDevice>("sdl"); UnregisterFactory<AnalogDevice>("sdl"); + UnregisterFactory<MotionDevice>("sdl"); CloseJoysticks(); SDL_DelEventWatch(&SDLEventWatcher, this); @@ -644,6 +781,27 @@ Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Eve 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) { @@ -809,6 +967,35 @@ public: } }; +class SDLMotionPoller final : public SDLPoller { +public: + explicit SDLMotionPoller(SDLState& state_) : SDLPoller(state_) {} + + Common::ParamPackage GetNextInput() override { + SDL_Event event; + while (state.event_queue.Pop(event)) { + const auto package = FromEvent(event); + if (package) { + return *package; + } + } + return {}; + } + [[nodiscard]] std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) const { + switch (event.type) { + case SDL_JOYAXISMOTION: + if (std::abs(event.jaxis.value / 32767.0) < 0.5) { + break; + } + [[fallthrough]]; + case SDL_JOYBUTTONUP: + case SDL_JOYHATMOTION: + 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 @@ -900,6 +1087,9 @@ SDLState::Pollers SDLState::GetPollers(InputCommon::Polling::DeviceType type) { 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; |