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Merge pull request #4601 from lioncash/const3 

sdl_impl: Minor cleanup
This commit is contained in:
bunnei 2020-08-29 23:23:41 -04:00 committed by GitHub
parent 37faf24c3f 69fa6b4906
commit e9b9fc4674
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 63 additions and 53 deletions
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82
src/input_common/sdl/sdl_impl.cpp
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@ -3,6 +3,7 @@
// Refer to the license.txt file included. // Refer to the license.txt file included.
#include <algorithm> #include <algorithm>
#include <array>
#include <atomic> #include <atomic>
#include <cmath> #include <cmath>
#include <functional> #include <functional>
@ -358,7 +359,7 @@ public:
return std::make_tuple(x / r * (r - deadzone) / (1 - deadzone), return std::make_tuple(x / r * (r - deadzone) / (1 - deadzone),
y / 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 { bool GetAnalogDirectionStatus(Input::AnalogDirection direction) const override {
@ -574,10 +575,10 @@ std::vector<Common::ParamPackage> SDLState::GetInputDevices() {
namespace { namespace {
Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, u8 axis, Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, u8 axis,
float value = 0.1) { float value = 0.1f) {
Common::ParamPackage params({{"engine", "sdl"}}); Common::ParamPackage params({{"engine", "sdl"}});
params.Set("port", port); params.Set("port", port);
params.Set("guid", guid); params.Set("guid", std::move(guid));
params.Set("axis", axis); params.Set("axis", axis);
if (value > 0) { if (value > 0) {
params.Set("direction", "+"); params.Set("direction", "+");
@ -592,7 +593,7 @@ Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid
Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, u8 button) { Common::ParamPackage BuildButtonParamPackageForButton(int port, std::string guid, u8 button) {
Common::ParamPackage params({{"engine", "sdl"}}); Common::ParamPackage params({{"engine", "sdl"}});
params.Set("port", port); params.Set("port", port);
params.Set("guid", guid); params.Set("guid", std::move(guid));
params.Set("button", button); params.Set("button", button);
return params; return params;
} }
@ -601,7 +602,7 @@ Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, u
Common::ParamPackage params({{"engine", "sdl"}}); Common::ParamPackage params({{"engine", "sdl"}});
params.Set("port", port); params.Set("port", port);
params.Set("guid", guid); params.Set("guid", std::move(guid));
params.Set("hat", hat); params.Set("hat", hat);
switch (value) { switch (value) {
case SDL_HAT_UP: case SDL_HAT_UP:
@ -670,11 +671,21 @@ Common::ParamPackage BuildParamPackageForAnalog(int port, const std::string& gui
} // Anonymous namespace } // Anonymous namespace
ButtonMapping SDLState::GetButtonMappingForDevice(const Common::ParamPackage& params) { 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. // This list is missing ZL/ZR since those are not considered buttons in SDL GameController.
// We will add those afterwards // We will add those afterwards
// This list also excludes Screenshot since theres not really a mapping for that // This list also excludes Screenshot since theres not really a mapping for that
std::unordered_map<Settings::NativeButton::Values, SDL_GameControllerButton> using ButtonBindings =
switch_to_sdl_button = { 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::A, SDL_CONTROLLER_BUTTON_B},
{Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_A}, {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_A},
{Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y}, {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y},
@ -692,33 +703,30 @@ ButtonMapping SDLState::GetButtonMappingForDevice(const Common::ParamPackage& pa
{Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER}, {Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER},
{Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER}, {Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER},
{Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE}, {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE},
}; }};
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) {
return {};
}
ButtonMapping mapping{};
for (const auto& [switch_button, sdl_button] : switch_to_sdl_button) {
const auto& binding = SDL_GameControllerGetBindForButton(controller, sdl_button);
mapping[switch_button] =
BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding);
}
// Add the missing bindings for ZL/ZR // Add the missing bindings for ZL/ZR
std::unordered_map<Settings::NativeButton::Values, SDL_GameControllerAxis> switch_to_sdl_axis = 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::ZL, SDL_CONTROLLER_AXIS_TRIGGERLEFT},
{Settings::NativeButton::ZR, SDL_CONTROLLER_AXIS_TRIGGERRIGHT}, {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) { for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) {
const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis); const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis);
mapping[switch_button] = mapping.insert_or_assign(
BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding); switch_button,
BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding));
} }
return mapping; return mapping;
@ -729,8 +737,8 @@ AnalogMapping SDLState::GetAnalogMappingForDevice(const Common::ParamPackage& pa
return {}; return {};
} }
const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0)); const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0));
auto controller = joystick->GetSDLGameController(); auto* controller = joystick->GetSDLGameController();
if (!controller) { if (controller == nullptr) {
return {}; return {};
} }
@ -739,16 +747,18 @@ AnalogMapping SDLState::GetAnalogMappingForDevice(const Common::ParamPackage& pa
SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX); SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX);
const auto& binding_left_y = const auto& binding_left_y =
SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY); SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY);
mapping[Settings::NativeAnalog::LStick] = mapping.insert_or_assign(Settings::NativeAnalog::LStick,
BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
binding_left_x.value.axis, binding_left_y.value.axis); binding_left_x.value.axis,
binding_left_y.value.axis));
const auto& binding_right_x = const auto& binding_right_x =
SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX); SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX);
const auto& binding_right_y = const auto& binding_right_y =
SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY); SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY);
mapping[Settings::NativeAnalog::RStick] = mapping.insert_or_assign(Settings::NativeAnalog::RStick,
BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(),
binding_right_x.value.axis, binding_right_y.value.axis); binding_right_x.value.axis,
binding_right_y.value.axis));
return mapping; return mapping;
} }
@ -784,7 +794,7 @@ public:
} }
return {}; return {};
} }
std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) { [[nodiscard]] std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) const {
switch (event.type) { switch (event.type) {
case SDL_JOYAXISMOTION: case SDL_JOYAXISMOTION:
if (std::abs(event.jaxis.value / 32767.0) < 0.5) { if (std::abs(event.jaxis.value / 32767.0) < 0.5) {
@ -795,7 +805,7 @@ public:
case SDL_JOYHATMOTION: case SDL_JOYHATMOTION:
return {SDLEventToButtonParamPackage(state, event)}; return {SDLEventToButtonParamPackage(state, event)};
} }
return {}; return std::nullopt;
} }
}; };