Added SysEx hooks

svn-id: r7579

1 files changed, 11 insertions, 0 deletions

diff --git a/sound/mpu401.cpp b/sound/mpu401.cpp
index 6c946ff686..3aab56e05d 100644
--- a/sound/mpu401.cpp
+++ b/sound/mpu401.cpp
@@ -74,6 +74,17 @@ MidiDriver_MPU401::MidiDriver_MPU401() : MidiDriver() {
 	}
 }
 
+void MidiDriver_MPU401::sysEx_customInstrument (byte channel, uint32 type, byte *instr) {
+	if (type != 'ROL ')
+		return;
+
+	// The SysEx stream for a Roland MT-32 instrument definition starts with
+	// the Roland manufacturer ID. So we just need to substitute the appropriate
+	// device # (i.e. channel), and go.
+	instr[1] = channel;
+	sysEx (instr, 253);
+}
+
 MidiChannel *MidiDriver_MPU401::allocateChannel() {
 	MidiChannel_MPU401 *chan;
 	uint i;