1 files changed, 24 insertions, 14 deletions

diff --git a/engines/parallaction/adlib.cpp b/engines/parallaction/adlib.cpp
index 7c1dd1681f..568ad190aa 100644
--- a/engines/parallaction/adlib.cpp
+++ b/engines/parallaction/adlib.cpp
@@ -25,7 +25,7 @@
 
 #include "audio/fmopl.h"
 #include "audio/mpu401.h"
-#include "audio/softsynth/emumidi.h"
+#include "audio/mididrv.h"
 
 namespace Parallaction {
 
@@ -270,11 +270,13 @@ struct MelodicVoice {
 	int8 _octave;
 };
 
-class AdLibDriver : public MidiDriver_Emulated {
+class AdLibDriver : public MidiDriver {
 public:
-	AdLibDriver(Audio::Mixer *mixer) : MidiDriver_Emulated(mixer) {
+	AdLibDriver(Audio::Mixer *mixer) {
 		for (uint i = 0; i < 16; ++i)
 			_channels[i].init(this, i);
+
+		_isOpen = false;
 	}
 
 	int open();
@@ -282,11 +284,13 @@ public:
 	void send(uint32 b);
 	MidiChannel *allocateChannel();
 	MidiChannel *getPercussionChannel() { return &_channels[9]; }
+	bool isOpen() const { return _isOpen; }
+	uint32 getBaseTempo() { return 1000000 / OPL::OPL::kDefaultCallbackFrequency; }
 
-	bool isStereo() const { return false; }
-	int getRate() const { return _mixer->getOutputRate(); }
-
-	void generateSamples(int16 *buf, int len);
+	virtual void setTimerCallback(void *timerParam, Common::TimerManager::TimerProc timerProc) {
+		_adlibTimerProc = timerProc;
+		_adlibTimerParam = timerParam;
+	}
 
 protected:
 	OPL::OPL *_opl;
@@ -320,6 +324,13 @@ protected:
 	void muteMelodicVoice(uint8 voice);
 
 	void initVoices();
+
+private:
+	void onTimer();
+
+	Common::TimerManager::TimerProc _adlibTimerProc;
+	void *_adlibTimerParam;
+	bool _isOpen;
 };
 
 MidiDriver *createAdLibDriver() {
@@ -348,10 +359,10 @@ int AdLibDriver::open() {
 	if (_isOpen)
 		return MERR_ALREADY_OPEN;
 
-	MidiDriver_Emulated::open();
+	_isOpen = true;
 
 	_opl = OPL::Config::create();
-	_opl->init(getRate());
+	_opl->init();
 	_opl->writeReg(0x1, 0x20); // set bit 5 (enable all waveforms)
 
 	// Reset the OPL registers.
@@ -364,7 +375,7 @@ int AdLibDriver::open() {
 
 	initVoices();
 
-	_mixer->playStream(Audio::Mixer::kMusicSoundType, &_mixerSoundHandle, this, -1, Audio::Mixer::kMaxChannelVolume, 0, DisposeAfterUse::NO, true);
+	_opl->start(new Common::Functor0Mem<void, AdLibDriver>(this, &AdLibDriver::onTimer));
 	return 0;
 }
 
@@ -373,7 +384,6 @@ void AdLibDriver::close() {
 		return;
 
 	_isOpen = false;
-	_mixer->stopHandle(_mixerSoundHandle);
 
 	delete _opl;
 }
@@ -777,9 +787,9 @@ MidiChannel *AdLibDriver::allocateChannel() {
 	return NULL;
 }
 
-void AdLibDriver::generateSamples(int16 *buf, int len) {
-	memset(buf, 0, sizeof(int16) * len);
-	_opl->readBuffer(buf, len);
+void AdLibDriver::onTimer() {
+	if (_adlibTimerProc)
+		(*_adlibTimerProc)(_adlibTimerParam);
 }
 
 void AdLibDriver::initVoices() {