OXYGENHUB
◆ main openmsx / src / cassette / CassettePort.cc
3.3 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
1 
#include "CassettePort.hh"
2
3 
#include "CassetteDevice.hh"
4 
#include "CassettePlayer.hh"
5 
#include "DummyCassetteDevice.hh"
6
7 
#include "HardwareConfig.hh"
8 
#include "MSXMotherBoard.hh"
9 
#include "PluggingController.hh"
10 
#include "serialize.hh"
11
12 
#include "checked_cast.hh"
13
14 
#include "components.hh"
15 
#if COMPONENT_LASERDISC
16 
#include "LaserdiscPlayer.hh"
17 
#endif
18
19 
#include <memory>
20
21 
namespace openmsx {
22
23 
// DummyCassettePort
24
25 
DummyCassettePort::DummyCassettePort(MSXMotherBoard& motherBoard)
26 
	: cassettePlayerCommand(
27 
		nullptr,
28 
		motherBoard.getCommandController(),
29 
		motherBoard.getStateChangeDistributor(),
30 
		motherBoard.getScheduler())
31 
{
32 
}
33
34 
void DummyCassettePort::setMotor(bool /*status*/, EmuTime /*time*/)
35 
{
36 
	// do nothing
37 
}
38 
void DummyCassettePort::cassetteOut(bool /*output*/, EmuTime /*time*/)
39 
{
40 
	// do nothing
41 
}
42 
bool DummyCassettePort::cassetteIn(EmuTime /*time*/)
43 
{
44 
	return false;
45 
}
46 
bool DummyCassettePort::lastOut() const
47 
{
48 
	return false; // not relevant
49 
}
50 
#if COMPONENT_LASERDISC
51 
void DummyCassettePort::setLaserdiscPlayer(LaserdiscPlayer* /* laserdisc */)
52 
{
53 
	// do nothing
54 
}
55 
#endif
56
57
58 
// CassettePort
59
60 
CassettePort::CassettePort(HardwareConfig& hwConf)
61 
	: Connector(hwConf.getMotherBoard().getPluggingController(), "cassetteport",
62 
	            std::make_unique<DummyCassetteDevice>())
63 
	, motherBoard(hwConf.getMotherBoard())
64 
{
65 
	auto player = std::make_unique<CassettePlayer>(hwConf);
66 
	cassettePlayer = player.get();
67 
	getPluggingController().registerPluggable(std::move(player));
68 
}
69
70 
CassettePort::~CassettePort()
71 
{
72 
	unplug(motherBoard.getCurrentTime());
73 
}
74
75
76 
void CassettePort::setMotor(bool status, EmuTime time)
77 
{
78 
	// TODO make 'click' sound
79 
	motorControl = status;
80 
	getPluggedCasDev().setMotor(status, time);
81 
}
82
83 
void CassettePort::cassetteOut(bool output, EmuTime time)
84 
{
85 
	lastOutput = output;
86 
	// leave everything to the pluggable
87 
	getPluggedCasDev().setSignal(output, time);
88 
}
89
90 
bool CassettePort::lastOut() const
91 
{
92 
	return lastOutput;
93 
}
94
95 
bool CassettePort::cassetteIn(EmuTime time)
96 
{
97 
	// All analog filtering is ignored for now
98 
	//   only important component is DC-removal
99 
	//   we just assume sample has no DC component
100 
	int16_t sample = [&]{
101 
	#if COMPONENT_LASERDISC
102 
		if (!motorControl && laserdiscPlayer) {
103 
			return laserdiscPlayer->readSample(time);
104 
		}
105 
	#endif
106 
		return getPluggedCasDev().readSample(time); // read 1 sample
107 
	}();
108 
	return sample >= 0; // comparator
109 
}
110
111 
#if COMPONENT_LASERDISC
112 
void CassettePort::setLaserdiscPlayer(LaserdiscPlayer *laserdiscPlayer_)
113 
{
114 
	laserdiscPlayer = laserdiscPlayer_;
115 
}
116 
#endif
117
118 
zstring_view CassettePort::getDescription() const
119 
{
120 
	return "MSX Cassette port";
121 
}
122
123 
zstring_view CassettePort::getClass() const
124 
{
125 
	return "Cassette Port";
126 
}
127
128 
CassetteDevice& CassettePort::getPluggedCasDev() const
129 
{
130 
	return *checked_cast<CassetteDevice*>(&getPlugged());
131 
}
132
133 
template<typename Archive>
134 
void CassettePort::serialize(Archive& ar, unsigned version)
135 
{
136 
	ar.template serializeBase<Connector>(*this);
137 
	// don't serialize 'lastOutput', done via MSXPPI
138
139 
	// Must come after serialization of the connector because that one
140 
	// potentially serializes the CassettePlayer.
141 
	if (ar.versionAtLeast(version, 2)) {
142 
		// always serialize CassettePlayer, even if it's not plugged in.
143 
		ar.serializeOnlyOnce("cassettePlayer", *cassettePlayer);
144 
	}
145 
}
146 
INSTANTIATE_SERIALIZE_METHODS(CassettePort);
147
148 
} // namespace openmsx