OXYGENHUB
◆ main openmsx / src / sound / WavAudioInput.cc
2.1 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
#include "WavAudioInput.hh"
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#include "CliComm.hh"
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#include "CommandController.hh"
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#include "FileOperations.hh"
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#include "PlugException.hh"
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#include "serialize.hh"
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namespace openmsx {
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WavAudioInput::WavAudioInput(CommandController& commandController)
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	: audioInputFilenameSetting(
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		commandController, "audio-inputfilename",
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		"filename of the file where the sampler reads data from",
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		"audio-input.wav")
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{
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	audioInputFilenameSetting.attach(*this);
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}
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WavAudioInput::~WavAudioInput()
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{
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	audioInputFilenameSetting.detach(*this);
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}
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void WavAudioInput::loadWave()
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{
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	wav = WavData(FileOperations::expandTilde(std::string(
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		audioInputFilenameSetting.getString())));
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}
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zstring_view WavAudioInput::getName() const
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{
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	return "wavinput";
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}
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zstring_view WavAudioInput::getDescription() const
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{
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	return "Read .wav files. Can for example be used as input for "
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	       "samplers.";
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}
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void WavAudioInput::plugHelper(Connector& /*connector*/, EmuTime time)
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{
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	try {
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		if (wav.getSize() == 0) {
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			loadWave();
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		}
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	} catch (MSXException& e) {
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		throw PlugException("Load of wave file failed: ", e.getMessage());
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	}
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	reference = time;
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}
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void WavAudioInput::unplugHelper(EmuTime /*time*/)
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{
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}
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void WavAudioInput::update(const Setting& setting) noexcept
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{
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	(void)setting;
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	assert(&setting == &audioInputFilenameSetting);
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	try {
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		if (isPluggedIn()) {
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			loadWave();
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		}
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	} catch (MSXException& e) {
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		// TODO proper error handling, message should go to console
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		setting.getCommandController().getCliComm().printWarning(
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			"Load of wave file failed: ", e.getMessage());
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	}
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}
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int16_t WavAudioInput::readSample(EmuTime time)
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{
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	if (wav.getSize()) {
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		unsigned pos = (time - reference).getTicksAt(wav.getFreq());
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		return wav.getSample(pos);
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	}
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	return 0;
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}
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template<typename Archive>
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void WavAudioInput::serialize(Archive& ar, unsigned /*version*/)
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{
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	ar.serialize("reference", reference);
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	if constexpr (Archive::IS_LOADER) {
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		update(audioInputFilenameSetting);
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	}
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}
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INSTANTIATE_SERIALIZE_METHODS(WavAudioInput);
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REGISTER_POLYMORPHIC_INITIALIZER(Pluggable, WavAudioInput, "WavAudioInput");
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} // namespace openmsx