fixed cast warnings

svn-id: r8435

2 files changed, 6 insertions, 5 deletions

diff --git a/sound/mpu401.cpp b/sound/mpu401.cpp
index 39bfdef482..9a139ec1a1 100644
--- a/sound/mpu401.cpp
+++ b/sound/mpu401.cpp
@@ -115,7 +115,7 @@ MidiChannel *MidiDriver_MPU401::allocateChannel() {
 	return NULL;
 }
 
-void MidiDriver_MPU401::setTimerCallback (void *timer_param, void (*timer_proc) (void *)) {
+void MidiDriver_MPU401::setTimerCallback (void *timer_param, TimerCallback timer_proc) {
 	if (!_timer_proc || !timer_proc) {
 		_timer_proc = timer_proc;
 		_timer_param = timer_param;
@@ -132,7 +132,6 @@ void MidiDriver_MPU401::setTimerCallback (void *timer_param, void (*timer_proc)
 }
 
 #if !defined(__MORPHOS__) && !defined(__PALM_OS__)
-typedef void (*TimerCallback) (void*);
 
 int MidiDriver_MPU401::midi_driver_thread(void *param) {
 	MidiDriver_MPU401 *mid = (MidiDriver_MPU401 *)param;
@@ -151,7 +150,7 @@ int MidiDriver_MPU401::midi_driver_thread(void *param) {
 		while (old_time < cur_time) {
 			old_time += 10;
 			if (mid->_timer_proc)
-				(*(TimerCallback)(mid->_timer_proc)) (mid->_timer_param);
+				(*(mid->_timer_proc)) (mid->_timer_param);
 		}
 	}
 
diff --git a/sound/mpu401.h b/sound/mpu401.h
index a85bb6af0c..592ca67a20 100644
--- a/sound/mpu401.h
+++ b/sound/mpu401.h
@@ -75,10 +75,12 @@ public:
 
 class MidiDriver_MPU401 : public MidiDriver {
 private:
+	typedef void (*TimerCallback) (void*);
+
 	MidiChannel_MPU401 _midi_channels [16];
 	volatile bool _started_thread;
 	void *_mutex; // Concurrent shutdown barrier
-	volatile void *_timer_proc;
+	volatile TimerCallback _timer_proc;
 	void *_timer_param;
 
 	static int midi_driver_thread (void *param);
@@ -87,7 +89,7 @@ public:
 	MidiDriver_MPU401();
 
 	virtual void close();
-	void setTimerCallback(void *timer_param, void (*timer_proc) (void *));
+	void setTimerCallback(void *timer_param, TimerCallback timer_proc);
 	uint32 getBaseTempo(void) { return 10000; }
 
 	MidiChannel *allocateChannel();