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CRUISE: Use the built-in OPL timer

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This commit is contained in:
Matthew Hoops 2015-04-03 16:57:53 -04:00
parent 984cd9b018
commit 3c7c217f44
1 changed files with 8 additions and 21 deletions
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29
engines/cruise/sound.cpp
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@ -125,7 +125,7 @@ public:
virtual int getRate() const { return _sampleRate; }
void initCard();
void update(int16 *buf, int len);
void onTimer();
void setupInstrument(const byte *data, int channel);
void setupInstrument(const AdLibSoundInstrument *ins, int channel);
void loadRegisterInstrument(const byte *data, AdLibRegisterSoundInstrument *reg);
@ -313,10 +313,12 @@ AdLibSoundDriver::AdLibSoundDriver(Audio::Mixer *mixer)
}
memset(_instrumentsTable, 0, sizeof(_instrumentsTable));
initCard();
_mixer->playStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
_musicVolume = ConfMan.getBool("music_mute") ? 0 : MIN(255, ConfMan.getInt("music_volume"));
_sfxVolume = ConfMan.getBool("sfx_mute") ? 0 : MIN(255, ConfMan.getInt("sfx_volume"));
_opl->start(new Common::Functor0Mem<void, AdLibSoundDriver>(this, &AdLibSoundDriver::onTimer), 50);
_mixer->playStream(Audio::Mixer::kPlainSoundType, &_soundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
}
AdLibSoundDriver::~AdLibSoundDriver() {
@ -389,8 +391,7 @@ void AdLibSoundDriver::stopAll() {
}
int AdLibSoundDriver::readBuffer(int16 *buffer, const int numSamples) {
update(buffer, numSamples);
return numSamples;
return _opl->readBuffer(buffer, numSamples);
}
void AdLibSoundDriver::initCard() {
@ -417,23 +418,9 @@ void AdLibSoundDriver::initCard() {
_opl->writeReg(1, 0);
}
void AdLibSoundDriver::update(int16 *buf, int len) {
static int samplesLeft = 0;
while (len != 0) {
int count = samplesLeft;
if (count > len) {
count = len;
}
samplesLeft -= count;
len -= count;
_opl->readBuffer(buf, count);
if (samplesLeft == 0) {
if (_upCb) {
(*_upCb)(_upRef);
}
samplesLeft = _sampleRate / 50;
}
buf += count;
void AdLibSoundDriver::onTimer() {
if (_upCb) {
(*_upCb)(_upRef);
}
}