static void Func_PolyAftertouch( int channel, int key, int pressure )
{
snd_seq_event_t ev;
snd_seq_ev_clear(&ev);
snd_seq_ev_set_keypress(&ev, channel, key, pressure);
sequence_event(&ev);
}
void MidiDriver_ALSA::send(uint32 b) {
unsigned int midiCmd[4];
ev.type = SND_SEQ_EVENT_OSS;
midiCmd[3] = (b & 0xFF000000) >> 24;
midiCmd[2] = (b & 0x00FF0000) >> 16;
midiCmd[1] = (b & 0x0000FF00) >> 8;
midiCmd[0] = (b & 0x000000FF);
ev.data.raw32.d[0] = midiCmd[0];
ev.data.raw32.d[1] = midiCmd[1];
ev.data.raw32.d[2] = midiCmd[2];
unsigned char chanID = midiCmd[0] & 0x0F;
switch (midiCmd[0] & 0xF0) {
case 0x80:
snd_seq_ev_set_noteoff(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0x90:
snd_seq_ev_set_noteon(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xA0:
snd_seq_ev_set_keypress(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xB0:
/* is it this simple ? Wow... */
snd_seq_ev_set_controller(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xC0:
snd_seq_ev_set_pgmchange(&ev, chanID, midiCmd[1]);
send_event(0);
break;
case 0xD0:
snd_seq_ev_set_chanpress(&ev, chanID, midiCmd[1]);
send_event(1);
break;
case 0xE0:{
// long theBend = ((((long)midiCmd[1] + (long)(midiCmd[2] << 7))) - 0x2000) / 4;
// snd_seq_ev_set_pitchbend(&ev, chanID, theBend);
long theBend = ((long)midiCmd[1] + (long)(midiCmd[2] << 7)) - 0x2000;
snd_seq_ev_set_pitchbend(&ev, chanID, theBend);
send_event(1);
}
break;
default:
warning("Unknown MIDI Command: %08x", (int)b);
/* I don't know if this works but, well... */
send_event(1);
break;
}
}
void sys_alsa_putmidimess(int portno, int a, int b, int c)
{
int channel;
snd_seq_event_t ev;
snd_seq_ev_clear(&ev);
if (portno >= 0 && portno < alsa_nmidiout)
{
if (a >= 224) // pitchbend
{
channel = a-224;
snd_seq_ev_set_pitchbend(&ev, channel, (((c<<7)|b)-8192)); /* b and c are already correct but alsa needs to recalculate them */
}
else if (a >= 208) // touch
{
channel = a-208;
snd_seq_ev_set_chanpress(&ev,channel,b);
}
else if (a >= 192) // program
{
channel = a-192;
snd_seq_ev_set_pgmchange(&ev,channel,b);
}
else if (a >= 176) // controller
{
channel = a-176;
snd_seq_ev_set_controller(&ev,channel,b,c);
}
else if (a >= 160) // polytouch
{
channel = a-160;
snd_seq_ev_set_keypress(&ev,channel,b,c);
}
else if (a >= 144) // note
{
channel = a-144;
if (c)
snd_seq_ev_set_noteon(&ev,channel,b,c);
else
snd_seq_ev_set_noteoff(&ev,channel,b,c);
}
snd_seq_ev_set_direct(&ev);
snd_seq_ev_set_subs(&ev);
snd_seq_ev_set_source(&ev,alsa_midioutfd[portno]);
snd_seq_event_output_direct(midi_handle,&ev);
}
//post("%d %d %d\n",a,b,c);
}
void AlsaMidiOutputDevice::writeFeedback(uchar cmd, uchar data1, uchar data2)
{
if (isOpen() == false)
return;
// Setup a common event structure for all values
snd_seq_event_t ev;
snd_seq_ev_clear(&ev);
snd_seq_ev_set_dest(&ev, m_receiver_address->client, m_receiver_address->port);
//snd_seq_ev_set_subs(&ev);
snd_seq_ev_set_direct(&ev);
uchar midiCmd = MIDI_CMD(cmd);
uchar midiCh = MIDI_CH(cmd);
bool invalidCmd = false;
switch(midiCmd)
{
case MIDI_NOTE_OFF:
snd_seq_ev_set_noteoff(&ev, midiCh, data1, data2);
break;
case MIDI_NOTE_ON:
snd_seq_ev_set_noteon(&ev, midiCh, data1, data2);
break;
case MIDI_CONTROL_CHANGE:
snd_seq_ev_set_controller(&ev, midiCh, data1, data2);
break;
case MIDI_PROGRAM_CHANGE:
snd_seq_ev_set_pgmchange(&ev, midiCh, data1);
break;
case MIDI_NOTE_AFTERTOUCH:
snd_seq_ev_set_keypress(&ev, midiCh, data1, data2);
break;
case MIDI_CHANNEL_AFTERTOUCH:
snd_seq_ev_set_chanpress(&ev, midiCh, data1);
break;
case MIDI_PITCH_WHEEL:
snd_seq_ev_set_pitchbend(&ev, midiCh, ((data1 & 0x7f) | ((data2 & 0x7f) << 7)) - 8192);
break;
default:
// What to do here ??
invalidCmd = true;
break;
}
if (!invalidCmd)
{
if (snd_seq_event_output(m_alsa, &ev) < 0)
qDebug() << "snd_seq_event_output ERROR";
}
// Make sure that all values go to the MIDI endpoint
snd_seq_drain_output(m_alsa);
}
void MidiDriver_ALSA::send(uint32 b) {
if (!_isOpen) {
warning("MidiDriver_ALSA: Got event while not open");
return;
}
unsigned int midiCmd[4];
ev.type = SND_SEQ_EVENT_OSS;
midiCmd[3] = (b & 0xFF000000) >> 24;
midiCmd[2] = (b & 0x00FF0000) >> 16;
midiCmd[1] = (b & 0x0000FF00) >> 8;
midiCmd[0] = (b & 0x000000FF);
ev.data.raw32.d[0] = midiCmd[0];
ev.data.raw32.d[1] = midiCmd[1];
ev.data.raw32.d[2] = midiCmd[2];
unsigned char chanID = midiCmd[0] & 0x0F;
switch (midiCmd[0] & 0xF0) {
case 0x80:
snd_seq_ev_set_noteoff(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0x90:
snd_seq_ev_set_noteon(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xA0:
snd_seq_ev_set_keypress(&ev, chanID, midiCmd[1], midiCmd[2]);
send_event(1);
break;
case 0xB0:
/* is it this simple ? Wow... */
snd_seq_ev_set_controller(&ev, chanID, midiCmd[1], midiCmd[2]);
// We save the volume of the first MIDI channel here to utilize it in
// our workaround for broken USB-MIDI cables.
if (chanID == 0 && midiCmd[1] == 0x07)
_channel0Volume = midiCmd[2];
send_event(1);
break;
case 0xC0:
snd_seq_ev_set_pgmchange(&ev, chanID, midiCmd[1]);
send_event(0);
// Send a volume change 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.
send(0x07B0 | (_channel0Volume << 16));
break;
case 0xD0:
snd_seq_ev_set_chanpress(&ev, chanID, midiCmd[1]);
send_event(1);
// Send a volume change 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.
send(0x07B0 | (_channel0Volume << 16));
break;
case 0xE0: {
// long theBend = ((((long)midiCmd[1] + (long)(midiCmd[2] << 7))) - 0x2000) / 4;
// snd_seq_ev_set_pitchbend(&ev, chanID, theBend);
long theBend = ((long)midiCmd[1] + (long)(midiCmd[2] << 7)) - 0x2000;
snd_seq_ev_set_pitchbend(&ev, chanID, theBend);
send_event(1);
} break;
default:
warning("Unknown MIDI Command: %08x", (int)b);
/* I don't know if this works but, well... */
send_event(1);
break;
}
}
void MidiAlsaSeq::processOutEvent( const MidiEvent& event, const MidiTime& time, const MidiPort* port )
{
// HACK!!! - need a better solution which isn't that easy since we
// cannot store const-ptrs in our map because we need to call non-const
// methods of MIDI-port - it's a mess...
MidiPort* p = const_cast<MidiPort *>( port );
snd_seq_event_t ev;
snd_seq_ev_clear( &ev );
snd_seq_ev_set_source( &ev, ( m_portIDs[p][1] != -1 ) ?
m_portIDs[p][1] : m_portIDs[p][0] );
snd_seq_ev_set_subs( &ev );
snd_seq_ev_schedule_tick( &ev, m_queueID, 1, static_cast<int>( time ) );
ev.queue = m_queueID;
switch( event.type() )
{
case MidiNoteOn:
snd_seq_ev_set_noteon( &ev,
event.channel(),
event.key() + KeysPerOctave,
event.velocity() );
break;
case MidiNoteOff:
snd_seq_ev_set_noteoff( &ev,
event.channel(),
event.key() + KeysPerOctave,
event.velocity() );
break;
case MidiKeyPressure:
snd_seq_ev_set_keypress( &ev,
event.channel(),
event.key() + KeysPerOctave,
event.velocity() );
break;
case MidiControlChange:
snd_seq_ev_set_controller( &ev,
event.channel(),
event.controllerNumber(),
event.controllerValue() );
break;
case MidiProgramChange:
snd_seq_ev_set_pgmchange( &ev,
event.channel(),
event.program() );
break;
case MidiChannelPressure:
snd_seq_ev_set_chanpress( &ev,
event.channel(),
event.channelPressure() );
break;
case MidiPitchBend:
snd_seq_ev_set_pitchbend( &ev,
event.channel(),
event.param( 0 ) - 8192 );
break;
default:
qWarning( "MidiAlsaSeq: unhandled output event %d\n", (int) event.type() );
return;
}
m_seqMutex.lock();
snd_seq_event_output( m_seqHandle, &ev );
snd_seq_drain_output( m_seqHandle );
m_seqMutex.unlock();
}
void SendMidiCommand(int nIdPortOut, char *buf)
{
/*
MIDI COMMANDS
-------------------------------------------------------------------
name status param 1 param 2
-------------------------------------------------------------------
note off 0x80+C key # velocity
note on 0x90+C key # velocity
poly key pressure 0xA0+C key # pressure value
control change 0xB0+C control # control value
program change 0xC0+C program # --
mono key pressure 0xD0+C pressure value --
pitch bend 0xE0+C range (LSB) range (MSB)
system 0xF0+C manufacturer model
-------------------------------------------------------------------
C is the channel number, from 0 to 15;
-------------------------------------------------------------------
source: http://ftp.ec.vanderbilt.edu/computermusic/musc216site/MIDI.Commands.html
In this program the pitch bend range will be transmitter as
one single 8-bit number. So the end result is that MIDI commands
will be transmitted as 3 bytes, starting with the operation byte:
buf[0] --> operation/channel
buf[1] --> param1
buf[2] --> param2 (param2 not transmitted on program change or key press)
snd_seq_event_t ev;
snd_seq_ev_clear(&ev);
snd_seq_ev_set_source(&ev, nIdPortOut);
snd_seq_ev_set_subs(&ev);
snd_seq_ev_set_direct(&ev);
snd_seq_ev_set_noteoff(&ev, 0, note, 60);
snd_seq_event_output(t_seq, &ev);
*/
snd_seq_event_t t_event;
snd_seq_ev_clear(&t_event);
// printf("Serial port: %u\n", nIdPortOut);
snd_seq_ev_set_source(&t_event, nIdPortOutA);
snd_seq_ev_set_subs(&t_event);
snd_seq_ev_set_direct(&t_event);
int operation, channel, param1, param2;
operation = buf[0] & 0xF0;
channel = buf[0] & 0x0F;
param1 = buf[1];
param2 = buf[2];
switch (operation)
{
case 0x80:
printf("OUT ==> 0x%x Note off 0x%x 0x%x 0x%x\n", operation, channel, param1, param2);
snd_seq_ev_set_noteoff(&t_event, channel, param1, param2);
break;
case 0x90:
printf("OUT ==> 0x%x Note on 0x%x 0x%x 0x%x\n", operation, channel, param1, param2);
snd_seq_ev_set_noteon(&t_event, channel, param1, param2);
break;
case 0xA0:
printf("OUT ==> 0x%x Pressure change 0x%x 0x%x 0x%x\n", operation, channel, param1, param2);
snd_seq_ev_set_keypress(&t_event, channel, param1, param2);
break;
case 0xB0:
printf("OUT ==> 0x%x Controller change 0x%x 0x%x 0x%x\n", operation, channel, param1, param2);
snd_seq_ev_set_controller(&t_event, channel, param1, param2);
break;
case 0xC0:
printf("OUT ==> 0x%x Program change 0x%x 0x%x 0x%x\n", operation, channel, param1);
snd_seq_ev_set_pgmchange(&t_event, channel, param1);
break;
case 0xD0:
printf("OUT ==> 0x%x Channel change 0x%x 0x%x 0x%x\n", operation, channel, param1);
snd_seq_ev_set_chanpress(&t_event, channel, param1);
break;
case 0xE0:
param1 = (param1 & 0x7F) + ((param2 & 0x7F) << 7);
printf("OUT ==> 0x%x Pitch bend %03u %05i\n", operation, channel, param1);
snd_seq_ev_set_pitchbend(&t_event, channel, param1 - 8192); // in alsa MIDI we want signed int
break;
/* Not implementing system commands (0xF0) */
default:
printf("OUT 0x%x Unknown MIDI cmd %03u %03u %03u\n", operation, channel, param1, param2);
break;
}
snd_seq_event_output_direct(t_seq, &t_event);
//snd_seq_drain_output(t_seq);
//snd_seq_event_output(t_seq, &t_event);
}
/**************************************************************************
* modData [internal]
*/
static DWORD modData(WORD wDevID, DWORD dwParam)
{
BYTE evt = LOBYTE(LOWORD(dwParam));
BYTE d1 = HIBYTE(LOWORD(dwParam));
BYTE d2 = LOBYTE(HIWORD(dwParam));
TRACE("(%04X, %08lX);\n", wDevID, dwParam);
if (wDevID >= MODM_NumDevs) return MMSYSERR_BADDEVICEID;
if (!MidiOutDev[wDevID].bEnabled) return MIDIERR_NODEVICE;
if (midiSeq == NULL) {
WARN("can't play !\n");
return MIDIERR_NODEVICE;
}
switch (MidiOutDev[wDevID].caps.wTechnology) {
case MOD_SYNTH:
case MOD_MIDIPORT:
{
int handled = 1; /* Assume event is handled */
snd_seq_event_t event;
snd_seq_ev_clear(&event);
snd_seq_ev_set_direct(&event);
snd_seq_ev_set_source(&event, port_out);
snd_seq_ev_set_dest(&event, MidiOutDev[wDevID].addr.client, MidiOutDev[wDevID].addr.port);
switch (evt & 0xF0) {
case MIDI_CMD_NOTE_OFF:
snd_seq_ev_set_noteoff(&event, evt&0x0F, d1, d2);
break;
case MIDI_CMD_NOTE_ON:
snd_seq_ev_set_noteon(&event, evt&0x0F, d1, d2);
break;
case MIDI_CMD_NOTE_PRESSURE:
snd_seq_ev_set_keypress(&event, evt&0x0F, d1, d2);
break;
case MIDI_CMD_CONTROL:
snd_seq_ev_set_controller(&event, evt&0x0F, d1, d2);
break;
case MIDI_CMD_BENDER:
snd_seq_ev_set_pitchbend(&event, evt&0x0F, ((WORD)d2 << 7 | (WORD)d1) - 0x2000);
break;
case MIDI_CMD_PGM_CHANGE:
snd_seq_ev_set_pgmchange(&event, evt&0x0F, d1);
break;
case MIDI_CMD_CHANNEL_PRESSURE:
snd_seq_ev_set_chanpress(&event, evt&0x0F, d1);
break;
case MIDI_CMD_COMMON_SYSEX:
switch (evt & 0x0F) {
case 0x00: /* System Exclusive, don't do it on modData,
* should require modLongData*/
case 0x01: /* Undefined */
case 0x04: /* Undefined. */
case 0x05: /* Undefined. */
case 0x07: /* End of Exclusive. */
case 0x09: /* Undefined. */
case 0x0D: /* Undefined. */
handled = 0;
break;
case 0x06: /* Tune Request */
case 0x08: /* Timing Clock. */
case 0x0A: /* Start. */
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);
break;
case 0x0F: /* Reset */
/* snd_seq_ev_set_sysex(&event, 1, &evt);
this other way may be better */
{
BYTE reset_sysex_seq[] = {MIDI_CMD_COMMON_SYSEX, 0x7e, 0x7f, 0x09, 0x01, 0xf7};
snd_seq_ev_set_sysex(&event, sizeof(reset_sysex_seq), reset_sysex_seq);
}
break;
case 0x03: /* Song Select. */
{
BYTE buf[2];
buf[0] = evt;
buf[1] = d1;
snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
}
break;
case 0x02: /* Song Position Pointer. */
{
BYTE buf[3];
buf[0] = evt;
buf[1] = d1;
buf[2] = d2;
snd_seq_ev_set_sysex(&event, sizeof(buf), buf);
}
break;
}
break;
}
if (handled)
snd_seq_event_output_direct(midiSeq, &event);
}
break;
default:
WARN("Technology not supported (yet) %d !\n",
MidiOutDev[wDevID].caps.wTechnology);
return MMSYSERR_NOTENABLED;
}
return MMSYSERR_NOERROR;
}
