(Partial) fix for bug #1035690 (COMI: cannon shooting uses a lot of performance) -- remember, busy waiting is almost always bad, esp. when waiting for another thread...

svn-id: r15875

1 files changed, 5 insertions, 3 deletions

diff --git a/scumm/imuse_digi/dimuse_track.cpp b/scumm/imuse_digi/dimuse_track.cpp
index 2a20a166e9..3dfa13372a 100644
--- a/scumm/imuse_digi/dimuse_track.cpp
+++ b/scumm/imuse_digi/dimuse_track.cpp
@@ -77,10 +77,12 @@ void IMuseDigital::startSound(int soundId, const char *soundName, int soundType,
 
 	Track *track = _track[l];
 	while (track->used) {
-#if defined(_WIN32_WCE) || defined (__PALM_OS__)
-		_vm->parseEvents(); // timers are events, we need to consume them
-#endif
+		// The designated track is not yet available. So, we call flushTracks()
+		// to get it processed (and thus made ready for us). Since the actual
+		// processing is done by another thread, we also call parseEvents to
+		// give it some time (and to avoid busy waiting/looping).
 		flushTracks();
+		_vm->parseEvents();
 	}
 
 	track->pan = 64;