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author | bunnei <bunneidev@gmail.com> | 2020-08-30 05:23:41 +0200 |
---|---|---|
committer | GitHub <noreply@github.com> | 2020-08-30 05:23:41 +0200 |
commit | e9b9fc467446b09ea574bed7cbb7ecb7e7ace068 (patch) | |
tree | 48cf743d2bb640ec92a880a792e1308f7eb9eb26 | |
parent | Merge pull request #4605 from lioncash/copy3 (diff) | |
parent | sdl_impl: Reduce allocations in GetButtonMappingForDevice() (diff) | |
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-rw-r--r-- | src/input_common/sdl/sdl_impl.cpp | 114 |
1 files changed, 62 insertions, 52 deletions
diff --git a/src/input_common/sdl/sdl_impl.cpp b/src/input_common/sdl/sdl_impl.cpp index c8d9eb2bc..a9e676f4b 100644 --- a/src/input_common/sdl/sdl_impl.cpp +++ b/src/input_common/sdl/sdl_impl.cpp @@ -3,6 +3,7 @@ // Refer to the license.txt file included. #include <algorithm> +#include <array> #include <atomic> #include <cmath> #include <functional> @@ -358,7 +359,7 @@ public: return std::make_tuple(x / 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 { @@ -574,10 +575,10 @@ std::vector<Common::ParamPackage> SDLState::GetInputDevices() { namespace { Common::ParamPackage BuildAnalogParamPackageForButton(int port, std::string guid, u8 axis, - float value = 0.1) { + float value = 0.1f) { Common::ParamPackage params({{"engine", "sdl"}}); params.Set("port", port); - params.Set("guid", guid); + params.Set("guid", std::move(guid)); params.Set("axis", axis); if (value > 0) { 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 params({{"engine", "sdl"}}); params.Set("port", port); - params.Set("guid", guid); + params.Set("guid", std::move(guid)); params.Set("button", button); return params; } @@ -601,7 +602,7 @@ Common::ParamPackage BuildHatParamPackageForButton(int port, std::string guid, u Common::ParamPackage params({{"engine", "sdl"}}); params.Set("port", port); - params.Set("guid", guid); + params.Set("guid", std::move(guid)); params.Set("hat", hat); switch (value) { case SDL_HAT_UP: @@ -670,55 +671,62 @@ Common::ParamPackage BuildParamPackageForAnalog(int port, const std::string& gui } // Anonymous namespace ButtonMapping SDLState::GetButtonMappingForDevice(const Common::ParamPackage& params) { - // This list is missing ZL/ZR since those are not considered buttons in SDL GameController. - // We will add those afterwards - // This list also excludes Screenshot since theres not really a mapping for that - std::unordered_map<Settings::NativeButton::Values, SDL_GameControllerButton> - switch_to_sdl_button = { - {Settings::NativeButton::A, SDL_CONTROLLER_BUTTON_B}, - {Settings::NativeButton::B, SDL_CONTROLLER_BUTTON_A}, - {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y}, - {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_X}, - {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK}, - {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK}, - {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER}, - {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER}, - {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START}, - {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK}, - {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT}, - {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP}, - {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT}, - {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN}, - {Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER}, - {Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER}, - {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) { + auto* controller = joystick->GetSDLGameController(); + if (controller == nullptr) { return {}; } - ButtonMapping mapping{}; + // This list is missing ZL/ZR since those are not considered buttons in SDL GameController. + // We will add those afterwards + // This list also excludes Screenshot since theres not really a mapping for that + using ButtonBindings = + 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::B, SDL_CONTROLLER_BUTTON_A}, + {Settings::NativeButton::X, SDL_CONTROLLER_BUTTON_Y}, + {Settings::NativeButton::Y, SDL_CONTROLLER_BUTTON_X}, + {Settings::NativeButton::LStick, SDL_CONTROLLER_BUTTON_LEFTSTICK}, + {Settings::NativeButton::RStick, SDL_CONTROLLER_BUTTON_RIGHTSTICK}, + {Settings::NativeButton::L, SDL_CONTROLLER_BUTTON_LEFTSHOULDER}, + {Settings::NativeButton::R, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER}, + {Settings::NativeButton::Plus, SDL_CONTROLLER_BUTTON_START}, + {Settings::NativeButton::Minus, SDL_CONTROLLER_BUTTON_BACK}, + {Settings::NativeButton::DLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT}, + {Settings::NativeButton::DUp, SDL_CONTROLLER_BUTTON_DPAD_UP}, + {Settings::NativeButton::DRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT}, + {Settings::NativeButton::DDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN}, + {Settings::NativeButton::SL, SDL_CONTROLLER_BUTTON_LEFTSHOULDER}, + {Settings::NativeButton::SR, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER}, + {Settings::NativeButton::Home, SDL_CONTROLLER_BUTTON_GUIDE}, + }}; + + // Add the missing bindings for ZL/ZR + 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::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[switch_button] = - BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding); + mapping.insert_or_assign( + switch_button, + BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding)); } - - // Add the missing bindings for ZL/ZR - std::unordered_map<Settings::NativeButton::Values, SDL_GameControllerAxis> switch_to_sdl_axis = - { - {Settings::NativeButton::ZL, SDL_CONTROLLER_AXIS_TRIGGERLEFT}, - {Settings::NativeButton::ZR, SDL_CONTROLLER_AXIS_TRIGGERRIGHT}, - }; for (const auto& [switch_button, sdl_axis] : switch_to_sdl_axis) { const auto& binding = SDL_GameControllerGetBindForAxis(controller, sdl_axis); - mapping[switch_button] = - BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding); + mapping.insert_or_assign( + switch_button, + BuildParamPackageForBinding(joystick->GetPort(), joystick->GetGUID(), binding)); } return mapping; @@ -729,8 +737,8 @@ AnalogMapping SDLState::GetAnalogMappingForDevice(const Common::ParamPackage& pa return {}; } const auto joystick = GetSDLJoystickByGUID(params.Get("guid", ""), params.Get("port", 0)); - auto controller = joystick->GetSDLGameController(); - if (!controller) { + auto* controller = joystick->GetSDLGameController(); + if (controller == nullptr) { return {}; } @@ -739,16 +747,18 @@ AnalogMapping SDLState::GetAnalogMappingForDevice(const Common::ParamPackage& pa SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTX); const auto& binding_left_y = SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_LEFTY); - mapping[Settings::NativeAnalog::LStick] = - BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), - binding_left_x.value.axis, binding_left_y.value.axis); + mapping.insert_or_assign(Settings::NativeAnalog::LStick, + BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), + binding_left_x.value.axis, + binding_left_y.value.axis)); const auto& binding_right_x = SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTX); const auto& binding_right_y = SDL_GameControllerGetBindForAxis(controller, SDL_CONTROLLER_AXIS_RIGHTY); - mapping[Settings::NativeAnalog::RStick] = - BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), - binding_right_x.value.axis, binding_right_y.value.axis); + mapping.insert_or_assign(Settings::NativeAnalog::RStick, + BuildParamPackageForAnalog(joystick->GetPort(), joystick->GetGUID(), + binding_right_x.value.axis, + binding_right_y.value.axis)); return mapping; } @@ -784,7 +794,7 @@ public: } return {}; } - std::optional<Common::ParamPackage> FromEvent(const SDL_Event& event) { + [[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) { @@ -795,7 +805,7 @@ public: case SDL_JOYHATMOTION: return {SDLEventToButtonParamPackage(state, event)}; } - return {}; + return std::nullopt; } }; |