[PATCH] winealsa.drv: Fix handling of system real time MIDI messages

[Bruno Jesus]

MIDI spec at http://www.somascape.org/midi/tech/spec.html state that system real time messages "... are each single byte messages, with no following data bytes...", currently wine is prepending SYSEX header generating invalid messages.

A comparison before and after patch using gmidimonitor as ouput MIDI port:
http://alexa.pro.br/~bruno/wine/midi.png

I believe the patch to be correct, I don't own any MIDI hardware to test but gmidimonitor seems good enough.

Fixes bug https://bugs.winehq.org/show_bug.cgi?id=39048

Signed-off-by: Bruno Jesus <00cpxxx at gmail.com>
---
 dlls/winealsa.drv/midi.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/dlls/winealsa.drv/midi.c b/dlls/winealsa.drv/midi.c
index 6fc75ee..6ef1976 100644
--- a/dlls/winealsa.drv/midi.c
+++ b/dlls/winealsa.drv/midi.c
@@ -909,10 +909,15 @@ static DWORD modData(WORD wDevID, DWORD dwParam)
 		case 0x0B:	/* Continue */
 		case 0x0C:	/* Stop */
 		case 0x0E: 	/* Active Sensing. */
-		    /* FIXME: Is this function suitable for these purposes
-		       (and also Song Select and Song Position Pointer) */
-	            snd_seq_ev_set_sysex(&event, 1, &evt);
+		{
+		    snd_midi_event_t *midi_event;
+
+		    snd_midi_event_new(1, &midi_event);
+		    snd_midi_event_init(midi_event);
+		    snd_midi_event_encode_byte(midi_event, evt, &event);
+		    snd_midi_event_free(midi_event);
 		    break;
+		}
 		case 0x0F: 	/* Reset */
 				/* snd_seq_ev_set_sysex(&event, 1, &evt);
 				   this other way may be better */
-- 
2.9.3