OXYGENHUB
◆ main openmsx / src / input / JoystickPort.cc
1.9 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#include "JoystickPort.hh"
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#include "DummyJoystick.hh"
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#include "JoystickDevice.hh"
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#include "PluggingController.hh"
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#include "serialize.hh"
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#include "checked_cast.hh"
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#include <memory>
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namespace openmsx {
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JoystickPort::JoystickPort(PluggingController& pluggingController_,
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                           std::string name_, std::string description_)
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	: Connector(pluggingController_, std::move(name_), std::make_unique<DummyJoystick>())
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	, description(std::move(description_))
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{
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}
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zstring_view JoystickPort::getDescription() const
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{
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	return description;
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}
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zstring_view JoystickPort::getClass() const
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{
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	return "Joystick Port";
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}
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JoystickDevice& JoystickPort::getPluggedJoyDev() const
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{
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	return *checked_cast<JoystickDevice*>(&getPlugged());
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}
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void JoystickPort::plug(Pluggable& device, EmuTime time)
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{
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	Connector::plug(device, time);
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	getPluggedJoyDev().write(lastValue, time);
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}
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uint8_t JoystickPort::read(EmuTime time)
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{
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	return getPluggedJoyDev().read(time);
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}
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void JoystickPort::write(uint8_t value, EmuTime time)
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{
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	if (lastValue != value) writeDirect(value, time);
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}
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void JoystickPort::writeDirect(uint8_t value, EmuTime time)
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{
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	lastValue = value;
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	getPluggedJoyDev().write(value, time);
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}
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template<typename Archive>
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void JoystickPort::serialize(Archive& ar, unsigned /*version*/)
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{
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	ar.template serializeBase<Connector>(*this);
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	if constexpr (Archive::IS_LOADER) {
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		// The value of 'lastValue', is already restored via MSXPSG,
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		// but we still need to re-write this value to the plugged
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		// devices (do this after those devices have been re-plugged).
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		writeDirect(lastValue, getPluggingController().getCurrentTime());
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	}
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}
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INSTANTIATE_SERIALIZE_METHODS(JoystickPort);
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// class DummyJoystickPort
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uint8_t DummyJoystickPort::read(EmuTime /*time*/)
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{
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	return 0x3F; // do as-if nothing is connected
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}
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void DummyJoystickPort::write(uint8_t /*value*/, EmuTime /*time*/)
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{
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	// ignore writes
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}
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} // namespace openmsx