JoyTap.cc

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#include "JoyTap.hh"
#include "JoystickPort.hh"
#include "PluggingController.hh"
#include "StringOp.hh"
#include "serialize.hh"
#include "memory.hh"

namespace openmsx {

using std::string;

JoyTap::JoyTap(PluggingController& pluggingController_, string name_)
        : pluggingController(pluggingController_)
        , name(std::move(name_))
{
}

JoyTap::~JoyTap() = default;

void JoyTap::createPorts(const string& baseDescription) {
        for (int i = 0; i < 4; ++i) {
                slaves[i] = make_unique<JoystickPort>(
                        pluggingController,
                        StringOp::Builder() << name << "_port_" << char('1' + i),
                        StringOp::Builder() << baseDescription << char('1' + i));
        }
}

string_ref JoyTap::getDescription() const
{
        return "MSX Joy Tap device";
}

const std::string& JoyTap::getName() const
{
        return name;
}

void JoyTap::plugHelper(Connector& /*connector*/, EmuTime::param /*time*/)
{
        createPorts("Joy Tap port ");
}

void JoyTap::unplugHelper(EmuTime::param time)
{
        for (auto& s : slaves) {
                s->unplug(time);
                s.reset();
        }
}

byte JoyTap::read(EmuTime::param time)
{
        byte value = 255;
        for (auto& s : slaves) {
                value &= s->read(time);
        }
        return value;
}

void JoyTap::write(byte 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 (!ar.isLoader()) assert(isPluggedIn());
        // restore plugged state when loading
        if (ar.isLoader()) {
                plugHelper(*getConnector(), pluggingController.getCurrentTime());
        }

        char tag[6] = { 'p', 'o', 'r', 't', 'X', 0 };
        for (int i = 0; i < 4; ++i) {
                tag[4] = char('0' + i);
                ar.serialize(tag, *slaves[i]);
        }
}
INSTANTIATE_SERIALIZE_METHODS(JoyTap);
REGISTER_POLYMORPHIC_INITIALIZER(Pluggable, JoyTap, "JoyTap");

} // namespace openmsx