new video engine (expect broken non-sdl builds),

simon the sorcerer 1 & 2 support (non SCUMM games)

svn-id: r3912

3 files changed, 24 insertions, 3 deletions

diff --git a/sound/adlib.cpp b/sound/adlib.cpp
index 8fe6f7536e..de550d3361 100644
--- a/sound/adlib.cpp
+++ b/sound/adlib.cpp
@@ -113,7 +113,7 @@ MidiChannelAdl *AdlibSoundDriver::allocate_midichan(byte pri)
 	return best;
 }
 
-void AdlibSoundDriver::init(SoundEngine *eng)
+void AdlibSoundDriver::init(SoundEngine *eng, OSystem *syst)
 {
 	int i;
 	MidiChannelAdl *mc;
diff --git a/sound/gmidi.cpp b/sound/gmidi.cpp
index 7d90614171..9fea3c0472 100644
--- a/sound/gmidi.cpp
+++ b/sound/gmidi.cpp
@@ -523,11 +523,32 @@ void MidiSoundDriver::part_key_off(Part *part, byte note)
 	}
 }
 
-void MidiSoundDriver::init(SoundEngine *eng)
+int MidiSoundDriver::midi_driver_thread(void *param) {
+	MidiSoundDriver *mid = (MidiSoundDriver*) param;
+	int old_time, cur_time;
+
+	old_time = mid->_system->get_msecs();
+
+	for(;;) {
+		mid->_system->delay_msecs(10);
+
+		cur_time = mid->_system->get_msecs();
+		while (old_time < cur_time) {
+			old_time += 10;
+			mid->_se->on_timer();
+		}
+	}
+}
+
+void MidiSoundDriver::init(SoundEngine *eng, OSystem *syst)
 {
 	int i;
 	MidiChannelGM *mc;
 
+	_system = syst;
+
+	/* Install the on_timer thread */
+	syst->create_thread(midi_driver_thread, this);
 	_se = eng;
 
 	for (i = 0, mc = _midi_channels; i != ARRAYSIZE(_midi_channels); i++, mc++)
diff --git a/sound/imuse.cpp b/sound/imuse.cpp
index e3068fd367..92e3333aae 100644
--- a/sound/imuse.cpp
+++ b/sound/imuse.cpp
@@ -999,7 +999,7 @@ int SoundEngine::initialize(Scumm *scumm, SoundDriver * driver)
 	init_queue();
 	init_parts();
 
-	_driver->init(this);
+	_driver->init(this, scumm->_system);
 
 	_initialized = true;