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Fixed the CoreMIDI driver -- MT-32 now sounds perfect under Mac OS X :-)

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svn-id: r19860
This commit is contained in:
Max Horn 2005-12-30 14:41:25 +00:00
parent 60fcd5a171
commit 549c6ea871
1 changed files with 23 additions and 2 deletions
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25
backends/midi/coremidi.cpp
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@ -108,23 +108,44 @@ void MidiDriver_CoreMIDI::send(uint32 b) {
assert(mOutPort != NULL); assert(mOutPort != NULL);
assert(mDest != NULL); assert(mDest != NULL);
// Extract the MIDI data
byte status_byte = (b & 0x000000FF); byte status_byte = (b & 0x000000FF);
byte first_byte = (b & 0x0000FF00) >> 8; byte first_byte = (b & 0x0000FF00) >> 8;
byte second_byte = (b & 0x00FF0000) >> 16; byte second_byte = (b & 0x00FF0000) >> 16;
// Generate a single MIDI packet with that data
MIDIPacketList packetList; MIDIPacketList packetList;
MIDIPacket *packet = &packetList.packet[0]; MIDIPacket *packet = &packetList.packet[0];
packetList.numPackets = 1; packetList.numPackets = 1;
packet->timeStamp = 0; packet->timeStamp = 0;
packet->length = 3;
packet->data[0] = status_byte; packet->data[0] = status_byte;
packet->data[1] = first_byte; packet->data[1] = first_byte;
packet->data[2] = second_byte; packet->data[2] = second_byte;
MIDISend(mOutPort, mDest, &packetList); // Compute the correct length of the MIDI command. This is important,
// else things may screw up badly...
switch (status_byte & 0xF0) {
case 0x80: // Note Off
case 0x90: // Note On
case 0xA0: // Polyphonic Aftertouch
case 0xB0: // Controller Change
case 0xE0: // Pitch Bending
packet->length = 3;
break;
case 0xC0: // Programm Change
case 0xD0: // Monophonic Aftertouch
packet->length = 2;
break;
default:
warning("CoreMIDI driver encountered unsupported status byte: 0x%02x", status_byte);
packet->length = 3;
break;
}
// Finally send it out to the synthesizer.
MIDISend(mOutPort, mDest, &packetList);
} }
void MidiDriver_CoreMIDI::sysEx(byte *msg, uint16 length) { void MidiDriver_CoreMIDI::sysEx(byte *msg, uint16 length) {