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SCI: (Temporary?) workaround for firmware bug in common USB-MIDI cables.

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svn-id: r49982
This commit is contained in:
Walter van Niftrik 2010-06-18 01:09:40 +00:00
parent d2a9fdae26
commit b453d139d4
1 changed files with 11 additions and 0 deletions
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11
engines/sci/sound/drivers/midi.cpp
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@ -271,6 +271,17 @@ void MidiPlayer_Midi::setPatch(int channel, int patch) {
_driver->setPitchBendRange(channel, bendRange);
_driver->send(0xc0 | channel, _patchMap[patch], 0);
// Send a pointless command to work around a firmware bug in common
// USB-MIDI cables. If the first MIDI command in a USB packet is a
// Cx or Dx command, the second command in the packet is dropped
// somewhere.
// FIXME: consider putting a workaround in the MIDI backend drivers
// instead.
// Known to be affected: alsa, coremidi
// Known *not* to be affected: windows (only seems to send one MIDI
// command per USB packet even if the device allows larger packets).
_driver->send(0xb0 | channel, 0x0a, _channels[channel].pan);
}
void MidiPlayer_Midi::send(uint32 b) {