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e05d2a70b2
CallbackStatus instances aren't the cheapest things to copy around (relative to everything else), given that they're currently 520 bytes in size and are currently copied numerous times when callbacks are invoked. Instead, we can pass the status by const reference to avoid all the copying.
84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
// Copyright 2020 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include "common/settings.h"
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#include "core/frontend/framebuffer_layout.h"
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#include "input_common/helpers/touch_from_buttons.h"
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namespace InputCommon {
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class TouchFromButtonDevice final : public Common::Input::InputDevice {
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public:
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using Button = std::unique_ptr<Common::Input::InputDevice>;
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TouchFromButtonDevice(Button button_, int touch_id_, float x_, float y_)
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: button(std::move(button_)), touch_id(touch_id_), x(x_), y(y_) {
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last_button_value = false;
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button->SetCallback({
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.on_change =
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[this](const Common::Input::CallbackStatus& callback_) {
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UpdateButtonStatus(callback_);
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},
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});
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button->ForceUpdate();
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}
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void ForceUpdate() override {
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button->ForceUpdate();
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}
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Common::Input::TouchStatus GetStatus(bool pressed) const {
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const Common::Input::ButtonStatus button_status{
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.value = pressed,
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};
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Common::Input::TouchStatus status{
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.pressed = button_status,
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.x = {},
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.y = {},
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.id = touch_id,
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};
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status.x.properties = properties;
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status.y.properties = properties;
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if (!pressed) {
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return status;
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}
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status.x.raw_value = x;
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status.y.raw_value = y;
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return status;
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}
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void UpdateButtonStatus(const Common::Input::CallbackStatus& button_callback) {
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const Common::Input::CallbackStatus status{
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.type = Common::Input::InputType::Touch,
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.touch_status = GetStatus(button_callback.button_status.value),
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};
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if (last_button_value != button_callback.button_status.value) {
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last_button_value = button_callback.button_status.value;
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TriggerOnChange(status);
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}
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}
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private:
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Button button;
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bool last_button_value;
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const int touch_id;
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const float x;
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const float y;
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const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false};
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};
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std::unique_ptr<Common::Input::InputDevice> TouchFromButton::Create(
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const Common::ParamPackage& params) {
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const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
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auto button = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
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params.Get("button", null_engine));
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const auto touch_id = params.Get("touch_id", 0);
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const float x = params.Get("x", 0.0f) / 1280.0f;
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const float y = params.Get("y", 0.0f) / 720.0f;
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return std::make_unique<TouchFromButtonDevice>(std::move(button), touch_id, x, y);
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}
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} // namespace InputCommon
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