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Allow input configuration with SDL joysticks (#3116) 

* Add infrastructure to poll joystick input and get ParamPackages

* Generalize the callbacks in configure_input.cpp and add buttons for analog sticks

* Use the polling classes in the input dialog

* Fix includes

* Formatting fix

* Include real header instead of forward declaring, to fix compiler error

* Split up pair and add deadzone for joystick configuration

* Pass ParamPackages by reference to callback

* fix formatting

* getPollers -> GetPollers

* Add forward declarations and simplify code a bit

* Update joysticks before opening them

* Fix mixup between joystick IDs and device indices
This commit is contained in:
muemart 2017-12-06 05:26:29 +01:00 committed by bunnei
parent e165b5bb94
commit e784434a25
7 changed files with 385 additions and 52 deletions
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143
src/citra_qt/configuration/configure_input.cpp
View File

@ -5,11 +5,11 @@
#include <algorithm>
#include <memory>
#include <utility>
#include <QMessageBox>
#include <QTimer>
#include "citra_qt/configuration/config.h"
#include "citra_qt/configuration/configure_input.h"
#include "common/param_package.h"
#include "input_common/main.h"
const std::array<std::string, ConfigureInput::ANALOG_SUB_BUTTONS_NUM>
ConfigureInput::analog_sub_buttons{{
@ -31,23 +31,19 @@ static QString getKeyName(int key_code) {
}
}
static void SetButtonKey(int key, Common::ParamPackage& button_param) {
button_param = Common::ParamPackage{InputCommon::GenerateKeyboardParam(key)};
}
static void SetAnalogKey(int key, Common::ParamPackage& analog_param,
const std::string& button_name) {
static void SetAnalogButton(const Common::ParamPackage& input_param,
Common::ParamPackage& analog_param, const std::string& button_name) {
if (analog_param.Get("engine", "") != "analog_from_button") {
analog_param = {
{"engine", "analog_from_button"}, {"modifier_scale", "0.5"},
};
}
analog_param.Set(button_name, InputCommon::GenerateKeyboardParam(key));
analog_param.Set(button_name, input_param.Serialize());
}
ConfigureInput::ConfigureInput(QWidget* parent)
: QWidget(parent), ui(std::make_unique<Ui::ConfigureInput>()),
timer(std::make_unique<QTimer>()) {
timeout_timer(std::make_unique<QTimer>()), poll_timer(std::make_unique<QTimer>()) {
ui->setupUi(this);
setFocusPolicy(Qt::ClickFocus);
@ -58,7 +54,7 @@ ConfigureInput::ConfigureInput(QWidget* parent)
ui->buttonStart, ui->buttonSelect, ui->buttonZL, ui->buttonZR, ui->buttonHome,
};
analog_map = {{
analog_map_buttons = {{
{
ui->buttonCircleUp, ui->buttonCircleDown, ui->buttonCircleLeft, ui->buttonCircleRight,
ui->buttonCircleMod,
@ -69,35 +65,57 @@ ConfigureInput::ConfigureInput(QWidget* parent)
},
}};
analog_map_stick = {ui->buttonCircleAnalog, ui->buttonCStickAnalog};
for (int button_id = 0; button_id < Settings::NativeButton::NumButtons; button_id++) {
if (button_map[button_id])
connect(button_map[button_id], &QPushButton::released, [=]() {
handleClick(button_map[button_id],
[=](int key) { SetButtonKey(key, buttons_param[button_id]); });
handleClick(
button_map[button_id],
[=](const Common::ParamPackage& params) { buttons_param[button_id] = params; },
InputCommon::Polling::DeviceType::Button);
});
}
for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
if (analog_map[analog_id][sub_button_id] != nullptr) {
connect(analog_map[analog_id][sub_button_id], &QPushButton::released, [=]() {
handleClick(analog_map[analog_id][sub_button_id], [=](int key) {
SetAnalogKey(key, analogs_param[analog_id],
analog_sub_buttons[sub_button_id]);
});
});
if (analog_map_buttons[analog_id][sub_button_id] != nullptr) {
connect(analog_map_buttons[analog_id][sub_button_id], &QPushButton::released,
[=]() {
handleClick(analog_map_buttons[analog_id][sub_button_id],
[=](const Common::ParamPackage& params) {
SetAnalogButton(params, analogs_param[analog_id],
analog_sub_buttons[sub_button_id]);
},
InputCommon::Polling::DeviceType::Button);
});
}
}
connect(analog_map_stick[analog_id], &QPushButton::released, [=]() {
QMessageBox::information(
this, "Information",
"After pressing OK, first move your joystick horizontally, and then vertically.");
handleClick(
analog_map_stick[analog_id],
[=](const Common::ParamPackage& params) { analogs_param[analog_id] = params; },
InputCommon::Polling::DeviceType::Analog);
});
}
connect(ui->buttonRestoreDefaults, &QPushButton::released, [this]() { restoreDefaults(); });
timer->setSingleShot(true);
connect(timer.get(), &QTimer::timeout, [this]() {
releaseKeyboard();
releaseMouse();
key_setter = boost::none;
updateButtonLabels();
timeout_timer->setSingleShot(true);
connect(timeout_timer.get(), &QTimer::timeout, [this]() { setPollingResult({}, true); });
connect(poll_timer.get(), &QTimer::timeout, [this]() {
Common::ParamPackage params;
for (auto& poller : device_pollers) {
params = poller->GetNextInput();
if (params.Has("engine")) {
setPollingResult(params, false);
return;
}
}
});
this->loadConfiguration();
@ -127,13 +145,15 @@ void ConfigureInput::loadConfiguration() {
void ConfigureInput::restoreDefaults() {
for (int button_id = 0; button_id < Settings::NativeButton::NumButtons; button_id++) {
SetButtonKey(Config::default_buttons[button_id], buttons_param[button_id]);
buttons_param[button_id] = Common::ParamPackage{
InputCommon::GenerateKeyboardParam(Config::default_buttons[button_id])};
}
for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
SetAnalogKey(Config::default_analogs[analog_id][sub_button_id],
analogs_param[analog_id], analog_sub_buttons[sub_button_id]);
Common::ParamPackage params{InputCommon::GenerateKeyboardParam(
Config::default_analogs[analog_id][sub_button_id])};
SetAnalogButton(params, analogs_param[analog_id], analog_sub_buttons[sub_button_id]);
}
}
updateButtonLabels();
@ -144,7 +164,9 @@ void ConfigureInput::updateButtonLabels() {
QString non_keyboard(tr("[non-keyboard]"));
auto KeyToText = [&non_keyboard](const Common::ParamPackage& param) {
if (param.Get("engine", "") != "keyboard") {
if (!param.Has("engine")) {
return QString("[not set]");
} else if (param.Get("engine", "") != "keyboard") {
return non_keyboard;
} else {
return getKeyName(param.Get("code", 0));
@ -157,7 +179,7 @@ void ConfigureInput::updateButtonLabels() {
for (int analog_id = 0; analog_id < Settings::NativeAnalog::NumAnalogs; analog_id++) {
if (analogs_param[analog_id].Get("engine", "") != "analog_from_button") {
for (QPushButton* button : analog_map[analog_id]) {
for (QPushButton* button : analog_map_buttons[analog_id]) {
if (button)
button->setText(non_keyboard);
}
@ -165,35 +187,66 @@ void ConfigureInput::updateButtonLabels() {
for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; sub_button_id++) {
Common::ParamPackage param(
analogs_param[analog_id].Get(analog_sub_buttons[sub_button_id], ""));
if (analog_map[analog_id][sub_button_id])
analog_map[analog_id][sub_button_id]->setText(KeyToText(param));
if (analog_map_buttons[analog_id][sub_button_id])
analog_map_buttons[analog_id][sub_button_id]->setText(KeyToText(param));
}
}
analog_map_stick[analog_id]->setText("Set Analog Stick");
}
}
void ConfigureInput::handleClick(QPushButton* button, std::function<void(int)> new_key_setter) {
void ConfigureInput::handleClick(QPushButton* button,
std::function<void(const Common::ParamPackage&)> new_input_setter,
InputCommon::Polling::DeviceType type) {
button->setText(tr("[press key]"));
button->setFocus();
key_setter = new_key_setter;
input_setter = new_input_setter;
device_pollers = InputCommon::Polling::GetPollers(type);
// Keyboard keys can only be used as button devices
want_keyboard_keys = type == InputCommon::Polling::DeviceType::Button;
for (auto& poller : device_pollers) {
poller->Start();
}
grabKeyboard();
grabMouse();
timer->start(5000); // Cancel after 5 seconds
timeout_timer->start(5000); // Cancel after 5 seconds
poll_timer->start(200); // Check for new inputs every 200ms
}
void ConfigureInput::setPollingResult(const Common::ParamPackage& params, bool abort) {
releaseKeyboard();
releaseMouse();
timeout_timer->stop();
poll_timer->stop();
for (auto& poller : device_pollers) {
poller->Stop();
}
if (!abort) {
(*input_setter)(params);
}
updateButtonLabels();
input_setter = boost::none;
}
void ConfigureInput::keyPressEvent(QKeyEvent* event) {
releaseKeyboard();
releaseMouse();
if (!key_setter || !event)
if (!input_setter || !event)
return;
if (event->key() != Qt::Key_Escape)
(*key_setter)(event->key());
updateButtonLabels();
key_setter = boost::none;
timer->stop();
if (event->key() != Qt::Key_Escape) {
if (want_keyboard_keys) {
setPollingResult(Common::ParamPackage{InputCommon::GenerateKeyboardParam(event->key())},
false);
} else {
// Escape key wasn't pressed and we don't want any keyboard keys, so don't stop polling
return;
}
}
setPollingResult({}, true);
}

31
src/citra_qt/configuration/configure_input.h
View File

@ -8,11 +8,13 @@
#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
#include <QKeyEvent>
#include <QWidget>
#include <boost/optional.hpp>
#include "common/param_package.h"
#include "core/settings.h"
#include "input_common/main.h"
#include "ui_configure_input.h"
class QPushButton;
@ -35,10 +37,11 @@ public:
private:
std::unique_ptr<Ui::ConfigureInput> ui;
std::unique_ptr<QTimer> timer;
std::unique_ptr<QTimer> timeout_timer;
std::unique_ptr<QTimer> poll_timer;
/// This will be the the setting function when an input is awaiting configuration.
boost::optional<std::function<void(int)>> key_setter;
boost::optional<std::function<void(const Common::ParamPackage&)>> input_setter;
std::array<Common::ParamPackage, Settings::NativeButton::NumButtons> buttons_param;
std::array<Common::ParamPackage, Settings::NativeAnalog::NumAnalogs> analogs_param;
@ -48,13 +51,23 @@ private:
/// Each button input is represented by a QPushButton.
std::array<QPushButton*, Settings::NativeButton::NumButtons> button_map;
/// Each analog input is represented by five QPushButtons which represents up, down, left, right
/// and modifier
/// A group of five QPushButtons represent one analog input. The buttons each represent up,
/// down, left, right, and modifier, respectively.
std::array<std::array<QPushButton*, ANALOG_SUB_BUTTONS_NUM>, Settings::NativeAnalog::NumAnalogs>
analog_map;
analog_map_buttons;
/// Analog inputs are also represented each with a single button, used to configure with an
/// actual analog stick
std::array<QPushButton*, Settings::NativeAnalog::NumAnalogs> analog_map_stick;
static const std::array<std::string, ANALOG_SUB_BUTTONS_NUM> analog_sub_buttons;
std::vector<std::unique_ptr<InputCommon::Polling::DevicePoller>> device_pollers;
/// A flag to indicate if keyboard keys are okay when configuring an input. If this is false,
/// keyboard events are ignored.
bool want_keyboard_keys = false;
/// Load configuration settings.
void loadConfiguration();
/// Restore all buttons to their default values.
@ -63,7 +76,13 @@ private:
void updateButtonLabels();
/// Called when the button was pressed.
void handleClick(QPushButton* button, std::function<void(int)> new_key_setter);
void handleClick(QPushButton* button,
std::function<void(const Common::ParamPackage&)> new_input_setter,
InputCommon::Polling::DeviceType type);
/// Finish polling and configure input using the input_setter
void setPollingResult(const Common::ParamPackage& params, bool abort);
/// Handle key press events.
void keyPressEvent(QKeyEvent* event) override;
};

14
src/citra_qt/configuration/configure_input.ui
View File

@ -289,6 +289,13 @@
<bool>false</bool>
</property>
<layout class="QGridLayout" name="gridLayout_4">
<item row="2" column="0" colspan="2">
<widget class="QPushButton" name="buttonCircleAnalog">
<property name="text">
<string>Set Analog Stick</string>
</property>
</widget>
</item>
<item row="0" column="0">
<layout class="QVBoxLayout" name="verticalLayout_17">
<item>
@ -448,6 +455,13 @@
</item>
</layout>
</item>
<item row="2" column="0" colspan="2">
<widget class="QPushButton" name="buttonCStickAnalog">
<property name="text">
<string>Set Analog Stick</string>
</property>
</widget>
</item>
</layout>
</widget>
</item>

11
src/input_common/main.cpp
View File

@ -71,4 +71,15 @@ std::string GenerateAnalogParamFromKeys(int key_up, int key_down, int key_left,
return circle_pad_param.Serialize();
}
namespace Polling {
std::vector<std::unique_ptr<DevicePoller>> GetPollers(DeviceType type) {
#ifdef HAVE_SDL2
return SDL::Polling::GetPollers(type);
#else
return {};
#endif
}
} // namespace Polling
} // namespace InputCommon

32
src/input_common/main.h
View File

@ -4,7 +4,13 @@
#pragma once
#include <memory>
#include <string>
#include <vector>
namespace Common {
class ParamPackage;
}
namespace InputCommon {
@ -31,4 +37,30 @@ std::string GenerateKeyboardParam(int key_code);
std::string GenerateAnalogParamFromKeys(int key_up, int key_down, int key_left, int key_right,
int key_modifier, float modifier_scale);
namespace Polling {
enum class DeviceType { Button, Analog };
/**
* A class that can be used to get inputs from an input device like controllers without having to
* poll the device's status yourself
*/
class DevicePoller {
public:
virtual ~DevicePoller() = default;
/// Setup and start polling for inputs, should be called before GetNextInput
virtual void Start() = 0;
/// Stop polling
virtual void Stop() = 0;
/**
* Every call to this function returns the next input recorded since calling Start
* @return A ParamPackage of the recorded input, which can be used to create an InputDevice.
* If there has been no input, the package is empty
*/
virtual Common::ParamPackage GetNextInput() = 0;
};
// Get all DevicePoller from all backends for a specific device type
std::vector<std::unique_ptr<DevicePoller>> GetPollers(DeviceType type);
} // namespace Polling
} // namespace InputCommon

183
src/input_common/sdl/sdl.cpp
View File

@ -3,13 +3,15 @@
// Refer to the license.txt file included.
#include <cmath>
#include <memory>
#include <string>
#include <tuple>
#include <unordered_map>
#include <utility>
#include <SDL.h>
#include "common/logging/log.h"
#include "common/math_util.h"
#include "common/param_package.h"
#include "input_common/main.h"
#include "input_common/sdl/sdl.h"
namespace InputCommon {
@ -69,6 +71,10 @@ public:
return (SDL_JoystickGetHat(joystick.get(), hat) & direction) != 0;
}
SDL_JoystickID GetJoystickID() const {
return SDL_JoystickInstanceID(joystick.get());
}
private:
std::unique_ptr<SDL_Joystick, decltype(&SDL_JoystickClose)> joystick;
};
@ -247,5 +253,180 @@ void Shutdown() {
}
}
/**
* This function converts a joystick ID used in SDL events to the device index. This is necessary
* because Citra opens joysticks using their indices, not their IDs.
*/
static int JoystickIDToDeviceIndex(SDL_JoystickID id) {
int num_joysticks = SDL_NumJoysticks();
for (int i = 0; i < num_joysticks; i++) {
auto joystick = GetJoystick(i);
if (joystick->GetJoystickID() == id) {
return i;
}
}
return -1;
}
Common::ParamPackage SDLEventToButtonParamPackage(const SDL_Event& event) {
Common::ParamPackage params({{"engine", "sdl"}});
switch (event.type) {
case SDL_JOYAXISMOTION:
params.Set("joystick", JoystickIDToDeviceIndex(event.jaxis.which));
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;
case SDL_JOYBUTTONUP:
params.Set("joystick", JoystickIDToDeviceIndex(event.jbutton.which));
params.Set("button", event.jbutton.button);
break;
case SDL_JOYHATMOTION:
params.Set("joystick", JoystickIDToDeviceIndex(event.jhat.which));
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 params;
}
namespace Polling {
class SDLPoller : public InputCommon::Polling::DevicePoller {
public:
SDLPoller() = default;
~SDLPoller() = default;
void Start() override {
// SDL joysticks must be opened, otherwise they don't generate events
SDL_JoystickUpdate();
int num_joysticks = SDL_NumJoysticks();
for (int i = 0; i < num_joysticks; i++) {
joysticks_opened.emplace_back(GetJoystick(i));
}
// Empty event queue to get rid of old events. citra-qt doesn't use the queue
SDL_Event dummy;
while (SDL_PollEvent(&dummy)) {
}
}
void Stop() override {
joysticks_opened.clear();
}
private:
std::vector<std::shared_ptr<SDLJoystick>> joysticks_opened;
};
class SDLButtonPoller final : public SDLPoller {
public:
SDLButtonPoller() = default;
~SDLButtonPoller() = default;
Common::ParamPackage GetNextInput() override {
SDL_Event event;
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_JOYAXISMOTION:
if (std::abs(event.jaxis.value / 32767.0) < 0.5) {
break;
}
case SDL_JOYBUTTONUP:
case SDL_JOYHATMOTION:
return SDLEventToButtonParamPackage(event);
}
}
return {};
}
};
class SDLAnalogPoller final : public SDLPoller {
public:
SDLAnalogPoller() = default;
~SDLAnalogPoller() = default;
void Start() override {
SDLPoller::Start();
// Reset stored axes
analog_xaxis = -1;
analog_yaxis = -1;
analog_axes_joystick = -1;
}
Common::ParamPackage GetNextInput() override {
SDL_Event event;
while (SDL_PollEvent(&event)) {
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.
int axis = event.jaxis.axis;
if (analog_xaxis == -1) {
analog_xaxis = axis;
analog_axes_joystick = event.jaxis.which;
} else if (analog_yaxis == -1 && analog_xaxis != axis &&
analog_axes_joystick == event.jaxis.which) {
analog_yaxis = axis;
}
}
Common::ParamPackage params;
if (analog_xaxis != -1 && analog_yaxis != -1) {
params.Set("engine", "sdl");
params.Set("joystick", JoystickIDToDeviceIndex(analog_axes_joystick));
params.Set("axis_x", analog_xaxis);
params.Set("axis_y", analog_yaxis);
analog_xaxis = -1;
analog_yaxis = -1;
analog_axes_joystick = -1;
return params;
}
return params;
}
private:
int analog_xaxis = -1;
int analog_yaxis = -1;
SDL_JoystickID analog_axes_joystick = -1;
};
std::vector<std::unique_ptr<InputCommon::Polling::DevicePoller>> GetPollers(
InputCommon::Polling::DeviceType type) {
std::vector<std::unique_ptr<InputCommon::Polling::DevicePoller>> pollers;
switch (type) {
case InputCommon::Polling::DeviceType::Analog:
pollers.push_back(std::make_unique<SDLAnalogPoller>());
break;
case InputCommon::Polling::DeviceType::Button:
pollers.push_back(std::make_unique<SDLButtonPoller>());
break;
}
return std::move(pollers);
}
} // namespace Polling
} // namespace SDL
} // namespace InputCommon

23
src/input_common/sdl/sdl.h
View File

@ -4,8 +4,21 @@
#pragma once
#include <memory>
#include <vector>
#include "core/frontend/input.h"
union SDL_Event;
namespace Common {
class ParamPackage;
}
namespace InputCommon {
namespace Polling {
class DevicePoller;
enum class DeviceType;
} // namespace Polling
} // namespace InputCommon
namespace InputCommon {
namespace SDL {
@ -15,5 +28,15 @@ void Init();
/// Unresisters SDL device factories and shut them down.
void Shutdown();
/// Creates a ParamPackage from an SDL_Event that can directly be used to create a ButtonDevice
Common::ParamPackage SDLEventToButtonParamPackage(const SDL_Event& event);
namespace Polling {
/// Get all DevicePoller that use the SDL backend for a specific device type
std::vector<std::unique_ptr<InputCommon::Polling::DevicePoller>> GetPollers(
InputCommon::Polling::DeviceType type);
} // namespace Polling
} // namespace SDL
} // namespace InputCommon