3 files changed, 12 insertions, 24 deletions
diff --git a/engines/queen/midiadlib.cpp b/engines/queen/midiadlib.cpp
index 457767a2a0..f5bc0f4d58 100644
--- a/engines/queen/midiadlib.cpp
+++ b/engines/queen/midiadlib.cpp
@@ -28,7 +28,7 @@
 namespace Queen {
 
 int AdLibMidiDriver::open() {
-	MidiDriver_Emulated::open();
+	_isOpen = true;
 	_opl = OPL::Config::create();
 	if (!_opl || !_opl->init())
 		error("Failed to create OPL");
@@ -41,12 +41,10 @@ int AdLibMidiDriver::open() {
 	}
 
 	_opl->start(new Common::Functor0Mem<void, AdLibMidiDriver>(this, &AdLibMidiDriver::onTimer));
-	_mixer->playStream(Audio::Mixer::kPlainSoundType, &_mixerSoundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
 	return 0;
 }
 
 void AdLibMidiDriver::close() {
-	_mixer->stopHandle(_mixerSoundHandle);
 	delete _opl;
 }
 
@@ -110,14 +108,6 @@ void AdLibMidiDriver::metaEvent(byte type, byte *data, uint16 length) {
 	warning("Unhandled meta event %d len %d", event, length);
 }
 
-void AdLibMidiDriver::generateSamples(int16 *data, int len) {
-	// Dummy implementation
-}
-
-int AdLibMidiDriver::readBuffer(int16 *data, const int numSamples) {
-	return _opl->readBuffer(data, numSamples);
-}
-
 void AdLibMidiDriver::setTimerCallback(void *timerParam, Common::TimerManager::TimerProc timerProc) {
 	_adlibTimerProc = timerProc;
 	_adlibTimerParam = timerParam;
diff --git a/engines/queen/midiadlib.h b/engines/queen/midiadlib.h
index d5590253cb..8692e51840 100644
--- a/engines/queen/midiadlib.h
+++ b/engines/queen/midiadlib.h
@@ -22,14 +22,17 @@
 
 #include "audio/fmopl.h"
 #include "audio/mididrv.h"
-#include "audio/softsynth/emumidi.h"
 
 namespace Queen {
 
-class AdLibMidiDriver : public MidiDriver_Emulated {
+class AdLibMidiDriver : public MidiDriver {
 public:
 
-	AdLibMidiDriver(Audio::Mixer *mixer) : MidiDriver_Emulated(mixer) { _adlibWaveformSelect = 0; }
+	AdLibMidiDriver() {
+		_adlibWaveformSelect = 0;
+		_isOpen = false;
+	}
+
 	~AdLibMidiDriver() {}
 
 	// MidiDriver
@@ -40,14 +43,8 @@ public:
 	MidiChannel *allocateChannel() { return 0; }
 	MidiChannel *getPercussionChannel() { return 0; }
 	void setTimerCallback(void *timerParam, Common::TimerManager::TimerProc timerProc);
-
-	// AudioStream
-	int readBuffer(int16 *data, const int numSamples);
-	bool isStereo() const { return false; }
-	int getRate() const { return _mixer->getOutputRate(); }
-
-	// MidiDriver_Emulated
-	void generateSamples(int16 *buf, int len);
+	bool isOpen() const { return _isOpen; }
+	uint32 getBaseTempo() { return 1000000 / OPL::OPL::kDefaultCallbackFrequency; }
 
 	void setVolume(uint32 volume);
 
@@ -74,8 +71,8 @@ private:
 	void adlibTurnNoteOn(int channel, int note);
 	void adlibSetupChannelFromSequence(int channel, const uint8 *src, int fl);
 	void adlibSetupChannel(int channel, const uint16 *src, int fl);
-	void adlibSetChannelVolume(int channel, uint8 volume);
 	void adlibSetNoteVolume(int channel, int volume);
+	void adlibSetChannelVolume(int channel, uint8 volume);
 	void adlibSetupChannelHelper(int channel);
 	void adlibSetChannel0x40(int channel);
 	void adlibSetChannel0xC0(int channel);
@@ -106,6 +103,7 @@ private:
 	uint16 _adlibMetaSequenceData[28];
 	uint8 _adlibChannelsVolumeTable[11];
 
+	bool _isOpen;
 	Common::TimerManager::TimerProc _adlibTimerProc;
 	void *_adlibTimerParam;
 
diff --git a/engines/queen/music.cpp b/engines/queen/music.cpp
index 600956ada5..9f74aab915 100644
--- a/engines/queen/music.cpp
+++ b/engines/queen/music.cpp
@@ -68,7 +68,7 @@ MidiMusic::MidiMusic(QueenEngine *vm)
 //		if (READ_LE_UINT16(_musicData + 2) != infoOffset) {
 //			defaultAdLibVolume = _musicData[infoOffset];
 //		}
-		_driver = new AdLibMidiDriver(g_system->getMixer());
+		_driver = new AdLibMidiDriver();
 	} else {
 		_driver = MidiDriver::createMidi(dev);
 		if (_nativeMT32) {