citra/src/input_common/main.cpp
Vitor K ce16653cc8
Automatic Controller Binding (#5100)
* Implement the basics of controller auto mapping. From testing doesn't currenlty work.
Opening the controller requires the device index, but it is only known and guaranteed
at boot time or when a controller is connected.

* Use the SDL_INIT_GAMECONTROLLER flag to initialize the controller
subsystem. It automatically initializes the joystick subsystem too,
so SDL_INIT_JOYSTICK is not needed.

* Implement the SDLGameController class to handle open game controllers.
Based on the SDLJoystick implementation.

* Address review comments

* Changes SDLJoystick and SDLGameController to use a custom default
constructible destructor, to improve readability. The only deleters
used previously were SDL_JoystickClose and SDL_GameControllerClose,
respectively, plus null lambdas. Given that both SDL functions
accept null pointers with just an early return, this should be
functionally the same.
with just an early return

* warn the user when a controller mapping is not found

* Get axis direction and threshold from SDL_ExtendedGameControllerBind

* Reject analog bind if it's not axis, for the couple of examples present in SDL2.0.10's db.
Also add SDL_CONTROLLER_BINDTYPE_NONE for the button bind switch, with a better log message.

* sdl_impl.cpp: Log the error returned by SDL_GetError upon failure to open joystick

* sdl: only use extended binding on SDL2.0.6 and up

* sdl_impl.cpp: minor changes
2021-01-01 10:01:07 +01:00

110 lines
3.6 KiB
C++

// Copyright 2017 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <thread>
#include "common/param_package.h"
#include "input_common/analog_from_button.h"
#include "input_common/keyboard.h"
#include "input_common/main.h"
#include "input_common/motion_emu.h"
#include "input_common/sdl/sdl.h"
#include "input_common/sdl/sdl_impl.h"
#include "input_common/touch_from_button.h"
#include "input_common/udp/udp.h"
namespace InputCommon {
static std::shared_ptr<Keyboard> keyboard;
static std::shared_ptr<MotionEmu> motion_emu;
static std::unique_ptr<CemuhookUDP::State> udp;
static std::unique_ptr<SDL::State> sdl;
void Init() {
keyboard = std::make_shared<Keyboard>();
Input::RegisterFactory<Input::ButtonDevice>("keyboard", keyboard);
Input::RegisterFactory<Input::AnalogDevice>("analog_from_button",
std::make_shared<AnalogFromButton>());
motion_emu = std::make_shared<MotionEmu>();
Input::RegisterFactory<Input::MotionDevice>("motion_emu", motion_emu);
Input::RegisterFactory<Input::TouchDevice>("touch_from_button",
std::make_shared<TouchFromButtonFactory>());
sdl = SDL::Init();
udp = CemuhookUDP::Init();
}
void Shutdown() {
Input::UnregisterFactory<Input::ButtonDevice>("keyboard");
keyboard.reset();
Input::UnregisterFactory<Input::AnalogDevice>("analog_from_button");
Input::UnregisterFactory<Input::MotionDevice>("motion_emu");
motion_emu.reset();
Input::UnregisterFactory<Input::TouchDevice>("touch_from_button");
sdl.reset();
udp.reset();
}
Keyboard* GetKeyboard() {
return keyboard.get();
}
MotionEmu* GetMotionEmu() {
return motion_emu.get();
}
std::string GenerateKeyboardParam(int key_code) {
Common::ParamPackage param{
{"engine", "keyboard"},
{"code", std::to_string(key_code)},
};
return param.Serialize();
}
std::string GenerateAnalogParamFromKeys(int key_up, int key_down, int key_left, int key_right,
int key_modifier, float modifier_scale) {
Common::ParamPackage circle_pad_param{
{"engine", "analog_from_button"},
{"up", GenerateKeyboardParam(key_up)},
{"down", GenerateKeyboardParam(key_down)},
{"left", GenerateKeyboardParam(key_left)},
{"right", GenerateKeyboardParam(key_right)},
{"modifier", GenerateKeyboardParam(key_modifier)},
{"modifier_scale", std::to_string(modifier_scale)},
};
return circle_pad_param.Serialize();
}
Common::ParamPackage GetSDLControllerButtonBindByGUID(const std::string& guid, int port,
int button) {
return dynamic_cast<SDL::SDLState*>(sdl.get())->GetSDLControllerButtonBindByGUID(
guid, port, static_cast<Settings::NativeButton::Values>(button));
}
Common::ParamPackage GetSDLControllerAnalogBindByGUID(const std::string& guid, int port,
int analog) {
return dynamic_cast<SDL::SDLState*>(sdl.get())->GetSDLControllerAnalogBindByGUID(
guid, port, static_cast<Settings::NativeAnalog::Values>(analog));
}
void ReloadInputDevices() {
if (udp)
udp->ReloadUDPClient();
}
namespace Polling {
std::vector<std::unique_ptr<DevicePoller>> GetPollers(DeviceType type) {
std::vector<std::unique_ptr<DevicePoller>> pollers;
#ifdef HAVE_SDL2
pollers = sdl->GetPollers(type);
#endif
return pollers;
}
} // namespace Polling
} // namespace InputCommon