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-rw-r--r--src/input_common/sdl/sdl_impl.cpp558
1 files changed, 425 insertions, 133 deletions
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp
index a9e676f4b..d32eb732a 100644
--- a/src/input_common/sdl/sdl_impl.cpp
+++ b/src/input_common/sdl/sdl_impl.cpp
@@ -5,6 +5,7 @@
#include <algorithm>
#include <array>
#include <atomic>
+#include <chrono>
#include <cmath>
#include <functional>
#include <mutex>
@@ -21,6 +22,7 @@
#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"
@@ -54,9 +56,9 @@ static int SDLEventWatcher(void* user_data, SDL_Event* event) {
class SDLJoystick {
public:
SDLJoystick(std::string guid_, int port_, SDL_Joystick* joystick,
- SDL_GameController* gamecontroller)
+ SDL_GameController* game_controller)
: guid{std::move(guid_)}, port{port_}, sdl_joystick{joystick, &SDL_JoystickClose},
- sdl_controller{gamecontroller, &SDL_GameControllerClose} {}
+ sdl_controller{game_controller, &SDL_GameControllerClose} {}
void SetButton(int button, bool value) {
std::lock_guard lock{mutex};
@@ -75,7 +77,17 @@ public:
float GetAxis(int axis, float range) const {
std::lock_guard lock{mutex};
- return state.axes.at(axis) / (32767.0f * range);
+ return static_cast<float>(state.axes.at(axis)) / (32767.0f * range);
+ }
+
+ bool RumblePlay(u16 amp_low, u16 amp_high) {
+ if (sdl_controller) {
+ return SDL_GameControllerRumble(sdl_controller.get(), amp_low, amp_high, 0) == 0;
+ } else if (sdl_joystick) {
+ return SDL_JoystickRumble(sdl_joystick.get(), amp_low, amp_high, 0) == 0;
+ }
+
+ return false;
}
std::tuple<float, float> GetAnalog(int axis_x, int axis_y, float range) const {
@@ -95,6 +107,10 @@ public:
return std::make_tuple(x, y);
}
+ const MotionInput& GetMotion() const {
+ return motion;
+ }
+
void SetHat(int hat, Uint8 direction) {
std::lock_guard lock{mutex};
state.hats.insert_or_assign(hat, direction);
@@ -122,15 +138,15 @@ public:
return sdl_joystick.get();
}
- void SetSDLJoystick(SDL_Joystick* joystick, SDL_GameController* controller) {
- sdl_controller.reset(controller);
- sdl_joystick.reset(joystick);
- }
-
SDL_GameController* GetSDLGameController() const {
return sdl_controller.get();
}
+ void SetSDLJoystick(SDL_Joystick* joystick, SDL_GameController* controller) {
+ sdl_joystick.reset(joystick);
+ sdl_controller.reset(controller);
+ }
+
private:
struct State {
std::unordered_map<int, bool> buttons;
@@ -142,74 +158,66 @@ 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 initialized without PID values as motion input is not aviable for SDL2
+ MotionInput motion{0.0f, 0.0f, 0.0f};
};
std::shared_ptr<SDLJoystick> SDLState::GetSDLJoystickByGUID(const std::string& guid, int port) {
std::lock_guard lock{joystick_map_mutex};
const auto it = joystick_map.find(guid);
+
if (it != joystick_map.end()) {
while (it->second.size() <= static_cast<std::size_t>(port)) {
auto joystick = std::make_shared<SDLJoystick>(guid, static_cast<int>(it->second.size()),
nullptr, nullptr);
it->second.emplace_back(std::move(joystick));
}
- return it->second[port];
+
+ return it->second[static_cast<std::size_t>(port)];
}
+
auto joystick = std::make_shared<SDLJoystick>(guid, 0, nullptr, nullptr);
+
return joystick_map[guid].emplace_back(std::move(joystick));
}
std::shared_ptr<SDLJoystick> SDLState::GetSDLJoystickBySDLID(SDL_JoystickID sdl_id) {
auto sdl_joystick = SDL_JoystickFromInstanceID(sdl_id);
- auto sdl_controller = SDL_GameControllerFromInstanceID(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()) {
- const auto vec_it =
- std::find_if(map_it->second.begin(), map_it->second.end(),
- [&sdl_joystick](const std::shared_ptr<SDLJoystick>& joystick) {
- return sdl_joystick == joystick->GetSDLJoystick();
- });
- if (vec_it != map_it->second.end()) {
- // This is the common case: There is already an existing SDL_Joystick maped to a
- // SDLJoystick. return the SDLJoystick
- return *vec_it;
- }
-
- // Search for a SDLJoystick without a mapped SDL_Joystick...
- const auto nullptr_it = std::find_if(map_it->second.begin(), map_it->second.end(),
- [](const std::shared_ptr<SDLJoystick>& joystick) {
- return !joystick->GetSDLJoystick();
- });
- if (nullptr_it != map_it->second.end()) {
- // ... and map it
- (*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, sdl_controller);
- return map_it->second.emplace_back(std::move(joystick));
- }
-
- auto joystick = std::make_shared<SDLJoystick>(guid, 0, sdl_joystick, sdl_controller);
- return joystick_map[guid].emplace_back(std::move(joystick));
+
+ 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);
+ LOG_ERROR(Input, "Failed to open joystick {}", joystick_index);
return;
}
+
const std::string guid = GetGUID(sdl_joystick);
std::lock_guard lock{joystick_map_mutex};
@@ -218,14 +226,17 @@ void SDLState::InitJoystick(int joystick_index) {
joystick_map[guid].emplace_back(std::move(joystick));
return;
}
+
auto& joystick_guid_list = joystick_map[guid];
- const auto it = std::find_if(
- 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, sdl_gamecontroller);
+ const auto joystick_it =
+ std::find_if(joystick_guid_list.begin(), joystick_guid_list.end(),
+ [](const auto& joystick) { return !joystick->GetSDLJoystick(); });
+
+ if (joystick_it != joystick_guid_list.end()) {
+ (*joystick_it)->SetSDLJoystick(sdl_joystick, sdl_gamecontroller);
return;
}
+
const int port = static_cast<int>(joystick_guid_list.size());
auto joystick = std::make_shared<SDLJoystick>(guid, port, sdl_joystick, sdl_gamecontroller);
joystick_guid_list.emplace_back(std::move(joystick));
@@ -234,22 +245,15 @@ void SDLState::InitJoystick(int joystick_index) {
void SDLState::CloseJoystick(SDL_Joystick* sdl_joystick) {
const std::string guid = GetGUID(sdl_joystick);
- std::shared_ptr<SDLJoystick> 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 std::shared_ptr<SDLJoystick>& joystick) {
- return joystick->GetSDLJoystick() == sdl_joystick;
- });
- joystick = *joystick_it;
- }
-
- // Destruct SDL_Joystick outside the lock guard because SDL can internally call the
- // event callback which locks the mutex again.
- joystick->SetSDLJoystick(nullptr, nullptr);
+ 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;
+ });
+
+ (*joystick_it)->SetSDLJoystick(nullptr, nullptr);
}
void SDLState::HandleGameControllerEvent(const SDL_Event& event) {
@@ -347,14 +351,21 @@ private:
class SDLAnalog final : public Input::AnalogDevice {
public:
- 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_) {}
+ explicit SDLAnalog(std::shared_ptr<SDLJoystick> joystick_, int axis_x_, int axis_y_,
+ bool invert_x_, bool invert_y_, float deadzone_, float range_)
+ : joystick(std::move(joystick_)), axis_x(axis_x_), axis_y(axis_y_), invert_x(invert_x_),
+ invert_y(invert_y_), deadzone(deadzone_), range(range_) {}
std::tuple<float, float> GetStatus() const override {
- const auto [x, y] = joystick->GetAnalog(axis_x, axis_y, range);
+ auto [x, y] = joystick->GetAnalog(axis_x, axis_y, range);
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));
@@ -382,10 +393,100 @@ private:
std::shared_ptr<SDLJoystick> joystick;
const int axis_x;
const int axis_y;
+ const bool invert_x;
+ const bool invert_y;
const float deadzone;
const float range;
};
+class SDLVibration final : public Input::VibrationDevice {
+public:
+ explicit SDLVibration(std::shared_ptr<SDLJoystick> joystick_)
+ : joystick(std::move(joystick_)) {}
+
+ u8 GetStatus() const override {
+ joystick->RumblePlay(1, 1);
+ return joystick->RumblePlay(0, 0);
+ }
+
+ bool SetRumblePlay(f32 amp_low, [[maybe_unused]] f32 freq_low, f32 amp_high,
+ [[maybe_unused]] f32 freq_high) const override {
+ const auto process_amplitude = [](f32 amplitude) {
+ return static_cast<u16>((amplitude + std::pow(amplitude, 0.3f)) * 0.5f * 0xFFFF);
+ };
+
+ const auto processed_amp_low = process_amplitude(amp_low);
+ const auto processed_amp_high = process_amplitude(amp_high);
+
+ return joystick->RumblePlay(processed_amp_low, processed_amp_high);
+ }
+
+private:
+ std::shared_ptr<SDLJoystick> joystick;
+};
+
+class 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:
@@ -466,7 +567,7 @@ class SDLAnalogFactory final : public Input::Factory<Input::AnalogDevice> {
public:
explicit SDLAnalogFactory(SDLState& state_) : state(state_) {}
/**
- * Creates analog device from joystick axes
+ * 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
@@ -480,12 +581,101 @@ public:
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 == "-";
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, range);
+ return std::make_unique<SDLAnalog>(joystick, axis_x, axis_y, invert_x, invert_y, deadzone,
+ range);
+ }
+
+private:
+ SDLState& state;
+};
+
+/// An vibration device factory that creates vibration devices from SDL joystick
+class SDLVibrationFactory final : public Input::Factory<Input::VibrationDevice> {
+public:
+ explicit SDLVibrationFactory(SDLState& state_) : state(state_) {}
+ /**
+ * Creates a vibration device from a joystick
+ * @param params contains parameters for creating the device:
+ * - "guid": the guid of the joystick to bind
+ * - "port": the nth joystick of the same type
+ */
+ std::unique_ptr<Input::VibrationDevice> Create(const Common::ParamPackage& params) override {
+ const std::string guid = params.Get("guid", "0");
+ const int port = params.Get("port", 0);
+ return std::make_unique<SDLVibration>(state.GetSDLJoystickByGUID(guid, port));
+ }
+
+private:
+ SDLState& state;
+};
+
+/// A motion device factory that creates motion devices from SDL joystick
+class SDLMotionFactory final : public Input::Factory<Input::MotionDevice> {
+public:
+ explicit SDLMotionFactory(SDLState& state_) : state(state_) {}
+ /**
+ * Creates motion device from joystick axes
+ * @param params contains parameters for creating the device:
+ * - "guid": the guid of the joystick to bind
+ * - "port": the nth joystick of the same type
+ */
+ std::unique_ptr<Input::MotionDevice> Create(const Common::ParamPackage& params) override {
+ const std::string guid = params.Get("guid", "0");
+ const int port = params.Get("port", 0);
+
+ auto joystick = state.GetSDLJoystickByGUID(guid, port);
+
+ if (params.Has("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:
@@ -494,18 +684,22 @@ private:
SDLState::SDLState() {
using namespace Input;
- analog_factory = std::make_shared<SDLAnalogFactory>(*this);
button_factory = std::make_shared<SDLButtonFactory>(*this);
- RegisterFactory<AnalogDevice>("sdl", analog_factory);
+ analog_factory = std::make_shared<SDLAnalogFactory>(*this);
+ vibration_factory = std::make_shared<SDLVibrationFactory>(*this);
+ motion_factory = std::make_shared<SDLMotionFactory>(*this);
RegisterFactory<ButtonDevice>("sdl", button_factory);
+ RegisterFactory<AnalogDevice>("sdl", analog_factory);
+ RegisterFactory<VibrationDevice>("sdl", vibration_factory);
+ RegisterFactory<MotionDevice>("sdl", motion_factory);
- // If the frontend is going to manage the event loop, then we dont start one here
- start_thread = !SDL_WasInit(SDL_INIT_JOYSTICK);
+ // 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);
+ 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());
}
@@ -518,7 +712,7 @@ SDLState::SDLState() {
using namespace std::chrono_literals;
while (initialized) {
SDL_PumpEvents();
- std::this_thread::sleep_for(5ms);
+ std::this_thread::sleep_for(1ms);
}
});
}
@@ -533,6 +727,8 @@ SDLState::~SDLState() {
using namespace Input;
UnregisterFactory<ButtonDevice>("sdl");
UnregisterFactory<AnalogDevice>("sdl");
+ UnregisterFactory<VibrationDevice>("sdl");
+ UnregisterFactory<MotionDevice>("sdl");
CloseJoysticks();
SDL_DelEventWatch(&SDLEventWatcher, this);
@@ -549,8 +745,7 @@ std::vector<Common::ParamPackage> SDLState::GetInputDevices() {
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()) {
+ if (auto* const controller = joystick->GetSDLGameController()) {
std::string name =
fmt::format("{} {}", SDL_GameControllerName(controller), joystick->GetPort());
devices.emplace_back(Common::ParamPackage{
@@ -559,7 +754,7 @@ std::vector<Common::ParamPackage> SDLState::GetInputDevices() {
{"guid", joystick->GetGUID()},
{"port", std::to_string(joystick->GetPort())},
});
- } else if (joy) {
+ } else if (auto* const joy = joystick->GetSDLJoystick()) {
std::string name = fmt::format("{} {}", SDL_JoystickName(joy), joystick->GetPort());
devices.emplace_back(Common::ParamPackage{
{"class", "sdl"},
@@ -574,7 +769,7 @@ std::vector<Common::ParamPackage> SDLState::GetInputDevices() {
}
namespace {
-Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, u8 axis,
+Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, s32 axis,
float value = 0.1f) {
Common::ParamPackage params({{"engine", "sdl"}});
params.Set("port", port);
@@ -590,7 +785,7 @@ Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid
return params;
}
-Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, u8 button) {
+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));
@@ -598,7 +793,7 @@ Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid
return params;
}
-Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, u8 hat, u8 value) {
+Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, s32 hat, s32 value) {
Common::ParamPackage params({{"engine", "sdl"}});
params.Set("port", port);
@@ -626,19 +821,56 @@ Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, u
Common::ParamPackage SDLEventToButtonParamPackage(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);
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
+ return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jaxis.axis),
+ event.jaxis.value);
+ }
+ break;
+ }
+ case SDL_JOYBUTTONUP: {
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which)) {
+ return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jbutton.button));
+ }
+ break;
+ }
+ case SDL_JOYHATMOTION: {
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) {
+ return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jhat.hat),
+ static_cast<s32>(event.jhat.value));
+ }
+ break;
+ }
+ }
+ return {};
+}
+
+Common::ParamPackage SDLEventToMotionParamPackage(SDLState& state, const SDL_Event& event) {
+ switch (event.type) {
+ case SDL_JOYAXISMOTION: {
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
+ return BuildAnalogParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jaxis.axis),
+ event.jaxis.value);
+ }
+ break;
}
case SDL_JOYBUTTONUP: {
- const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which);
- return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- event.jbutton.button);
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jbutton.which)) {
+ return BuildButtonParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jbutton.button));
+ }
+ break;
}
case SDL_JOYHATMOTION: {
- const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which);
- return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
- event.jhat.hat, event.jhat.value);
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jhat.which)) {
+ return BuildHatParamPackageForButton(joystick->GetPort(), joystick->GetGUID(),
+ static_cast<s32>(event.jhat.hat),
+ static_cast<s32>(event.jhat.value));
+ }
+ break;
}
}
return {};
@@ -647,6 +879,8 @@ Common::ParamPackage SDLEventToButtonParamPackage(SDLState& state, const SDL_Eve
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:
@@ -666,6 +900,8 @@ Common::ParamPackage BuildParamPackageForAnalog(int port, const std::string& gui
params.Set("guid", guid);
params.Set("axis_x", axis_x);
params.Set("axis_y", axis_y);
+ params.Set("invert_x", "+");
+ params.Set("invert_y", "+");
return params;
}
} // Anonymous namespace
@@ -767,7 +1003,7 @@ class SDLPoller : public InputCommon::Polling::DevicePoller {
public:
explicit SDLPoller(SDLState& state_) : state(state_) {}
- void Start(const std::string& device_id) override {
+ void Start([[maybe_unused]] const std::string& device_id) override {
state.event_queue.Clear();
state.polling = true;
}
@@ -794,6 +1030,78 @@ public:
}
return {};
}
+ [[nodiscard]] std::optional<Common::ParamPackage> FromEvent(SDL_Event& event) {
+ switch (event.type) {
+ case SDL_JOYAXISMOTION:
+ if (!axis_memory.count(event.jaxis.which) ||
+ !axis_memory[event.jaxis.which].count(event.jaxis.axis)) {
+ axis_memory[event.jaxis.which][event.jaxis.axis] = event.jaxis.value;
+ axis_event_count[event.jaxis.which][event.jaxis.axis] = 1;
+ break;
+ } else {
+ axis_event_count[event.jaxis.which][event.jaxis.axis]++;
+ // The joystick and axis exist in our map if we take this branch, so no checks
+ // needed
+ if (std::abs(
+ (event.jaxis.value - axis_memory[event.jaxis.which][event.jaxis.axis]) /
+ 32767.0) < 0.5) {
+ break;
+ } else {
+ if (axis_event_count[event.jaxis.which][event.jaxis.axis] == 2 &&
+ IsAxisAtPole(event.jaxis.value) &&
+ IsAxisAtPole(axis_memory[event.jaxis.which][event.jaxis.axis])) {
+ // If we have exactly two events and both are near a pole, this is
+ // likely a digital input masquerading as an analog axis; Instead of
+ // trying to look at the direction the axis travelled, assume the first
+ // event was press and the second was release; This should handle most
+ // digital axes while deferring to the direction of travel for analog
+ // axes
+ event.jaxis.value = static_cast<Sint16>(
+ std::copysign(32767, axis_memory[event.jaxis.which][event.jaxis.axis]));
+ } else {
+ // There are more than two events, so this is likely a true analog axis,
+ // check the direction it travelled
+ event.jaxis.value = static_cast<Sint16>(std::copysign(
+ 32767,
+ event.jaxis.value - axis_memory[event.jaxis.which][event.jaxis.axis]));
+ }
+ axis_memory.clear();
+ axis_event_count.clear();
+ }
+ }
+ [[fallthrough]];
+ case SDL_JOYBUTTONUP:
+ case SDL_JOYHATMOTION:
+ return {SDLEventToButtonParamPackage(state, event)};
+ }
+ return std::nullopt;
+ }
+
+private:
+ // Determine whether an axis value is close to an extreme or center
+ // Some controllers have a digital D-Pad as a pair of analog sticks, with 3 possible values per
+ // axis, which is why the center must be considered a pole
+ bool IsAxisAtPole(int16_t value) const {
+ return std::abs(value) >= 32767 || std::abs(value) < 327;
+ }
+ std::unordered_map<SDL_JoystickID, std::unordered_map<uint8_t, int16_t>> axis_memory;
+ std::unordered_map<SDL_JoystickID, std::unordered_map<uint8_t, uint32_t>> axis_event_count;
+};
+
+class SDLMotionPoller final : public SDLPoller {
+public:
+ explicit SDLMotionPoller(SDLState& state_) : SDLPoller(state_) {}
+
+ Common::ParamPackage GetNextInput() override {
+ SDL_Event event;
+ while (state.event_queue.Pop(event)) {
+ const auto package = FromEvent(event);
+ if (package) {
+ return *package;
+ }
+ }
+ return {};
+ }
[[nodiscard]] std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) const {
switch (event.type) {
case SDL_JOYAXISMOTION:
@@ -803,7 +1111,7 @@ public:
[[fallthrough]];
case SDL_JOYBUTTONUP:
case SDL_JOYHATMOTION:
- return {SDLEventToButtonParamPackage(state, event)};
+ return {SDLEventToMotionParamPackage(state, event)};
}
return std::nullopt;
}
@@ -821,7 +1129,6 @@ public:
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;
@@ -834,52 +1141,34 @@ public:
if (event.type == SDL_JOYAXISMOTION && std::abs(event.jaxis.value / 32767.0) < 0.5) {
continue;
}
- // 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;
- }
+ // In order to return a complete analog param, we need inputs for both axes.
+ // First we take the x-axis (horizontal) input, then the y-axis (vertical) input.
+ if (analog_x_axis == -1) {
+ analog_x_axis = axis;
+ } else if (analog_y_axis == -1 && analog_x_axis != axis) {
+ analog_y_axis = axis;
+ }
+ } else {
+ // 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;
}
- }
-
- // 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;
}
}
if (analog_x_axis != -1 && analog_y_axis != -1) {
- const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which);
- auto params = BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
- analog_x_axis, analog_y_axis);
- analog_x_axis = -1;
- analog_y_axis = -1;
- return params;
+ if (const auto joystick = state.GetSDLJoystickBySDLID(event.jaxis.which)) {
+ auto params = BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
+ analog_x_axis, analog_y_axis);
+ analog_x_axis = -1;
+ analog_y_axis = -1;
+ return params;
+ }
}
+
return {};
}
@@ -900,6 +1189,9 @@ 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;
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-10 20:01:31 +0200