JoyTap.cc

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#include "JoyTap.hh"
#include "PluggingController.hh"
#include "enumerate.hh"
#include "serialize.hh"
#include "strCat.hh"
#include <array>
#include <memory>
 
namespace openmsx {
 
JoyTap::JoyTap(PluggingController& pluggingController_, std::string name_)
        : pluggingController(pluggingController_)
        , name(std::move(name_))
{
}
 
void JoyTap::createPorts(std::string_view description, EmuTime::param time)
{
        for (auto [i, slave] : enumerate(slaves)) {
                slave.emplace(
                        pluggingController,
                        strCat(name, "_port_", char('1' + i)),
                        strCat(description, ' ', char('1' + i)));
                slave->write(0, time);
        }
}
 
std::string_view JoyTap::getDescription() const
{
        return "MSX Joy Tap device";
}
 
std::string_view JoyTap::getName() const
{
        return name;
}
 
void JoyTap::plugHelper(Connector& /*connector*/, EmuTime::param time)
{
        createPorts("Joy Tap port", time);
}
 
void JoyTap::unplugHelper(EmuTime::param time)
{
        for (auto& s : slaves) {
                s->unplug(time);
                s.reset();
        }
}
 
uint8_t JoyTap::read(EmuTime::param time)
{
        uint8_t value = 255;
        for (auto& s : slaves) {
                value &= s->read(time);
        }
        return value;
}
 
void JoyTap::write(uint8_t value, EmuTime::param time)
{
        for (auto& s : slaves) {
                s->write(value, time);
        }
}
 
template<typename Archive>
void JoyTap::serialize(Archive& ar, unsigned /*version*/)
{
        // saving only happens when plugged in
        if constexpr (!Archive::IS_LOADER) assert(isPluggedIn());
        // restore plugged state when loading
        if constexpr (Archive::IS_LOADER) {
                plugHelper(*getConnector(), pluggingController.getCurrentTime());
        }
 
        std::array<char, 6> tag = {'p', 'o', 'r', 't', 'X', 0};
        for (auto [i, slave] : enumerate(slaves)) {
                tag[4] = char('0' + i);
                ar.serialize(tag.data(), *slave);
        }
}
INSTANTIATE_SERIALIZE_METHODS(JoyTap);
REGISTER_POLYMORPHIC_INITIALIZER(Pluggable, JoyTap, "JoyTap");
 
} // namespace openmsx