/*
* the somethingStupid parameter can be set to simulate a program crash.
* We want PortMidi to close Midi ports automatically in the event of a
* crash because Windows does not (and this may cause an OS crash)
*/
void main_test_input(unsigned int somethingStupid) {
PmStream * midi;
PmError status, length;
PmEvent buffer[1];
int num = 10;
int i = get_number("Type input number: ");
/* It is recommended to start timer before Midi; otherwise, PortMidi may
start the timer with its (default) parameters
*/
TIME_START;
/* open input device */
Pm_OpenInput(&midi,
i,
DRIVER_INFO,
INPUT_BUFFER_SIZE,
TIME_PROC,
TIME_INFO);
printf("Midi Input opened. Reading %d Midi messages...\n", num);
Pm_SetFilter(midi, PM_FILT_ACTIVE | PM_FILT_CLOCK | PM_FILT_SYSEX);
/* empty the buffer after setting filter, just in case anything
got through */
while (Pm_Poll(midi)) {
Pm_Read(midi, buffer, 1);
}
/* now start paying attention to messages */
i = 0; /* count messages as they arrive */
while (i < num) {
status = Pm_Poll(midi);
if (status == TRUE) {
length = Pm_Read(midi,buffer, 1);
if (length > 0) {
printf("Got message %d: time %ld, %2lx %2lx %2lx\n",
i,
(long) buffer[0].timestamp,
(long) Pm_MessageStatus(buffer[0].message),
(long) Pm_MessageData1(buffer[0].message),
(long) Pm_MessageData2(buffer[0].message));
i++;
} else {
assert(0);
}
}
/* simulate crash if somethingStupid is 1 or 2 */
if ((i > (num/2)) && (somethingStupid == 1)) {
doSomethingStupid();
} else if ((i > (num/2)) && (somethingStupid == 2)) {
doSomethingReallyStupid();
}
}
/* close device (this not explicitly needed in most implementations) */
printf("ready to close...");
Pm_Close(midi);
printf("done closing...");
}
bool inputAvailable()
{
if(Pm_Poll(in) == 1 || nbEventWaiting > 0)
return true;
else if(Pm_Poll(in) == 0)
return false;
//else
// printf("Error while reading midi input.\r\n");
return false;
}
void QMidiSequencer::run()
{
while(true)
{
if (Pm_Poll(m_midi) == TRUE)
{
int size = Pm_Read(m_midi,m_buffer, 256);
for(int i=0; i<size; i++)
{
int type = Pm_MessageStatus(m_buffer[i].message);
int chan = Pm_MessageData1(m_buffer[i].message);
int value = Pm_MessageData2(m_buffer[i].message);
//std::cout << "midi : " << QString::number(type).toStdString() << " | " << QString::number(chan).toStdString() << " | " << QString::number(value).toStdString() << std::endl;
/*qDebug(QString::number(type).toStdString().c_str());
qDebug(QString::number(chan).toStdString().c_str());
qDebug(QString::number(value).toStdString().c_str());
qDebug("\n");*/
if( chan == 74 || chan == 10 || chan == 7 )
emit controllerValueChanged(type*chan,value);
else if( (chan == 72 || chan == 73) )
emit noteOn(type,type+chan,value);
/*else if( type == 144 && value == 0 )
emit noteOff(type, chan);*/
}
}
this->msleep(10);
}
}
void process_midi(PtTimestamp timestamp, void *userData)
{
PmError result;
PmEvent buffer; /* just one message at a time */
int i, status, data1, data2;
PyObject *tup = NULL;
MidiListener *server = (MidiListener *)userData;
if (server->active == 0) return;
PyGILState_STATE s = PyGILState_Ensure();
do {
for (i=0; i<server->midicount; i++) {
result = Pm_Poll(server->midiin[i]);
if (result) {
if (Pm_Read(server->midiin[i], &buffer, 1) == pmBufferOverflow)
continue;
status = Pm_MessageStatus(buffer.message);
data1 = Pm_MessageData1(buffer.message);
data2 = Pm_MessageData2(buffer.message);
tup = PyTuple_New(3);
PyTuple_SetItem(tup, 0, PyInt_FromLong(status));
PyTuple_SetItem(tup, 1, PyInt_FromLong(data1));
PyTuple_SetItem(tup, 2, PyInt_FromLong(data2));
PyObject_Call((PyObject *)server->midicallable, tup, NULL);
}
}
} while (result);
PyGILState_Release(s);
Py_XDECREF(tup);
}
void PortMidiDriver::read()
{
if (!inputStream)
return;
PmEvent buffer[1];
while (Pm_Poll(inputStream)) {
int n = Pm_Read(inputStream, buffer, 1);
if (n > 0) {
int status = Pm_MessageStatus(buffer[0].message);
int type = status & 0xF0;
int channel = status & 0x0F;
if (type == ME_NOTEON) {
int pitch = Pm_MessageData1(buffer[0].message);
int velo = Pm_MessageData2(buffer[0].message);
mscore->midiNoteReceived(channel, pitch, velo);
}
else if (type == ME_NOTEOFF) {
int pitch = Pm_MessageData1(buffer[0].message);
(void)Pm_MessageData2(buffer[0].message); // read but ignore
mscore->midiNoteReceived(channel, pitch, 0);
}
else if (type == ME_CONTROLLER) {
int param = Pm_MessageData1(buffer[0].message);
int value = Pm_MessageData2(buffer[0].message);
mscore->midiCtrlReceived(param, value);
}
}
}
}
void* MIDIInputPoll(MIDIInput* self)
{
PmEvent buffer[64];
int result;
while (self->mRunning) {
if (Pm_Poll(self->mStream)) {
result = Pm_Read(self->mStream, buffer, 64);
// result is an error number
if (result < 0) {
TTLogError("MidiPoll error\n");
}
// result is the number of midi events
else {
MIDIParserFrom parser;
for (TTInt32 i = 0; i < result; i++) {
// if the parsing is done : pass address and value
if (parser.parse(Pm_MessageStatus(buffer[i].message), Pm_MessageData1(buffer[i].message), Pm_MessageData2(buffer[i].message)))
self->mProtocol->receivedMessage(self->mApplication, parser.address, parser.value);
}
}
}
self->mPollingThread->sleep(1);
}
return NULL;
}
/*
* Method: Pm_Poll
*/
JNIEXPORT jint JNICALL Java_jportmidi_JPortMidiApi_Pm_1Poll
(JNIEnv *env, jclass cl, jobject jstream)
{
CLASS(c, jstream);
ADDRESS_FID(fid, c);
return Pm_Poll(PMSTREAM(jstream, fid));
}
bool PortMidiDriver::init()
{
inputId = getDeviceIn(preferences.getString(PREF_IO_PORTMIDI_INPUTDEVICE));
if (inputId == -1)
inputId = Pm_GetDefaultInputDeviceID();
if (inputId == pmNoDevice)
return false;
outputId = getDeviceOut(preferences.getString(PREF_IO_PORTMIDI_OUTPUTDEVICE)); // Note: allow init even if outputId == pmNoDevice, since input is more important than output.
static const int DRIVER_INFO = 0;
static const int TIME_INFO = 0;
Pt_Start(20, 0, 0); // timer started, 20 millisecond accuracy
PmError error = Pm_OpenInput(&inputStream,
inputId,
(void*)DRIVER_INFO,
preferences.getInt(PREF_IO_PORTMIDI_INPUTBUFFERCOUNT),
((PmTimeProcPtr) Pt_Time),
(void*)TIME_INFO);
if (error != pmNoError) {
const char* p = Pm_GetErrorText(error);
qDebug("PortMidi: open input (id=%d) failed: %s", int(inputId), p);
Pt_Stop();
return false;
}
Pm_SetFilter(inputStream, PM_FILT_ACTIVE | PM_FILT_CLOCK | PM_FILT_SYSEX);
PmEvent buffer[1];
while (Pm_Poll(inputStream))
Pm_Read(inputStream, buffer, 1);
if (outputId != pmNoDevice) {
error = Pm_OpenOutput(&outputStream,
outputId,
(void*)DRIVER_INFO,
preferences.getInt(PREF_IO_PORTMIDI_OUTPUTBUFFERCOUNT),
((PmTimeProcPtr) Pt_Time),
(void*)TIME_INFO,
preferences.getInt(PREF_IO_PORTMIDI_OUTPUTLATENCYMILLISECONDS));
if (error != pmNoError) {
const char* p = Pm_GetErrorText(error);
qDebug("PortMidi: open output (id=%d) failed: %s", int(outputId), p);
Pt_Stop();
return false;
}
}
timer = new QTimer();
timer->setInterval(20); // 20 msec
timer->start();
timer->connect(timer, SIGNAL(timeout()), seq, SLOT(midiInputReady()));
return true;
}
bool osd_poll_midi_channel(osd_midi_device *dev)
{
#ifndef DISABLE_MIDI
PmError chk = Pm_Poll(dev->pmStream);
return (chk == pmGotData) ? true : false;
#else
return false;
#endif
}
/* callback function for PortTime -- computes histogram */
void pt_callback(PtTimestamp timestamp, void *userData)
{
PtTimestamp difference = timestamp - previous_callback_time - period;
previous_callback_time = timestamp;
/* allow 5 seconds for the system to settle down */
if (timestamp < 5000) return;
iteration++;
/* send a note on/off if user requested it */
if (test_out && (iteration % output_period == 0)) {
PmEvent buffer[1];
buffer[0].timestamp = Pt_Time(NULL);
if (note_on) {
/* note off */
buffer[0].message = Pm_Message(0x90, 60, 0);
note_on = 0;
} else {
/* note on */
buffer[0].message = Pm_Message(0x90, 60, 100);
note_on = 1;
}
Pm_Write(out, buffer, 1);
iteration = 0;
}
/* read all waiting events (if user requested) */
if (test_in) {
PmError status;
PmEvent buffer[1];
do {
status = Pm_Poll(in);
if (status == TRUE) {
Pm_Read(in,buffer,1);
}
} while (status == TRUE);
}
if (difference < 0) return; /* ignore when system is "catching up" */
/* update the histogram */
if (difference < HIST_LEN) {
histogram[difference]++;
} else {
out_of_range++;
}
if (max_latency < difference) max_latency = difference;
}
void receive_poll(PtTimestamp ts, void *userData)
{
int count, command;
PmEvent event;
if (inStream==NULL)
return;
if (Pm_Poll(inStream)!=TRUE)
return;
while ((count = Pm_Read(inStream, &event, 1))) {
if (count == 1) {
/* there seems to be a constant stream of MIDI events, not all of which are interesting */
/* the status has the command in the highest 4 bits and the channel in the lowest 4 bits */
command = Pm_MessageStatus(event.message) & MIDI_CODE_MASK;
if ((command == MIDI_ON_NOTE) ||
(command == MIDI_OFF_NOTE ) ||
(command == MIDI_CH_PROGRAM ) ||
(command == MIDI_CTRL) ||
(command == MIDI_POLY_TOUCH ) ||
(command == MIDI_TOUCH ) ||
(command == MIDI_BEND )) {
MUTEX_LOCK;
channel [numReceived] = (Pm_MessageStatus(event.message) & MIDI_CHN_MASK);
note [numReceived] = Pm_MessageData1(event.message);
velocity [numReceived] = Pm_MessageData2(event.message);
timestamp [numReceived] = event.timestamp;
if (verbose) {
mexPrintf("channel = %2d, note = %3d, velocity = %3d, timestamp = %d\n", channel[numReceived], note[numReceived], velocity[numReceived], timestamp[numReceived]);
mexEvalString("try, drawnow limitrate nocallbacks; end");
}
if (numReceived==INPUT_BUFFER_SIZE)
mexWarnMsgTxt("midi buffer overrun");
else
numReceived++;
MUTEX_UNLOCK;
}
}
else
mexWarnMsgTxt(Pm_GetErrorText(count));
}
}
void receive_poll(PtTimestamp ts, void *userData)
{
int count, command;
unsigned int latest;
PmEvent event;
if (inStream==NULL)
return;
if (Pm_Poll(inStream)!=TRUE)
return;
while ((count = Pm_Read(inStream, &event, 1))) {
if (count == 1) {
/* there seems to be a constant stream of MIDI events, not all of which are interesting */
/* the status has the command in the highest 4 bits and the channel in the lowest 4 bits */
command = Pm_MessageStatus(event.message) & MIDI_CODE_MASK;
if ((command == MIDI_ON_NOTE) ||
(command == MIDI_OFF_NOTE ) ||
(command == MIDI_CH_PROGRAM ) ||
(command == MIDI_CTRL) ||
(command == MIDI_POLY_TOUCH ) ||
(command == MIDI_TOUCH ) ||
(command == MIDI_BEND )) {
/* store the latest event at the end of the ring buffer */
latest = WRAP(numReceived, INPUT_BUFFER_SIZE);
numReceived++;
channel [latest] = (double)(Pm_MessageStatus(event.message) & MIDI_CHN_MASK);
note [latest] = (double)Pm_MessageData1(event.message);
velocity [latest] = (double)Pm_MessageData2(event.message);
timestamp [latest] = (double)event.timestamp;
if (verbose) {
mexPrintf("channel = %2d, note = %3d, velocity = %3d, timestamp = %g\n", (int)channel[latest], (int)note[latest], (int)velocity[latest], timestamp[latest]);
mexEvalString("try, drawnow limitrate nocallbacks; end");
}
}
}
else
mexWarnMsgTxt(Pm_GetErrorText(count));
}
}
int
midibus::poll_for_midi ()
{
if (m_pm_num)
{
PmError err = Pm_Poll(m_pms);
if (err == FALSE)
{
return 0;
}
if (err == TRUE)
{
return 1;
}
errprintf("Pm_Poll: %s\n", Pm_GetErrorText(err));
}
return 0;
}
void portmidiGetEvents(Server *self)
{
int i;
PmError result;
PmEvent buffer;
PyoPmBackendData *be_data = (PyoPmBackendData *) self->midi_be_data;
for (i=0; i<self->midiin_count; i++) {
do {
result = Pm_Poll(be_data->midiin[i]);
if (result) {
if (Pm_Read(be_data->midiin[i], &buffer, 1) == pmBufferOverflow)
continue;
self->midiEvents[self->midi_count++] = PmEventToPyoMidiEvent(buffer);
}
} while (result);
}
}
bool PortMidiDriver::init()
{
inputId = getDeviceIn(preferences.portMidiInput);
if(inputId == -1)
inputId = Pm_GetDefaultInputDeviceID();
outputId = Pm_GetDefaultOutputDeviceID();
if (inputId == pmNoDevice)
return false;
static const int INPUT_BUFFER_SIZE = 100;
static const int DRIVER_INFO = 0;
static const int TIME_INFO = 0;
Pt_Start(20, 0, 0); // timer started, 20 millisecond accuracy
PmError error = Pm_OpenInput(&inputStream,
inputId,
(void*)DRIVER_INFO, INPUT_BUFFER_SIZE,
((long (*)(void*)) Pt_Time),
(void*)TIME_INFO);
if (error != pmNoError) {
const char* p = Pm_GetErrorText(error);
qDebug("PortMidi: open input (id=%d) failed: %s", int(inputId), p);
Pt_Stop();
return false;
}
Pm_SetFilter(inputStream, PM_FILT_ACTIVE | PM_FILT_CLOCK | PM_FILT_SYSEX);
PmEvent buffer[1];
while (Pm_Poll(inputStream))
Pm_Read(inputStream, buffer, 1);
timer = new QTimer();
timer->setInterval(20); // 20 msec
timer->start();
timer->connect(timer, SIGNAL(timeout()), seq, SLOT(midiInputReady()));
return true;
}
void MidiSession::read()
{
while(active)
{
auto available = Pm_Poll(midiStream);
if(available)
{
numEvents = Pm_Read(midiStream, events, 1);
buffer.events.resize(numEvents);
for(auto i = 0; i < numEvents; i++)
{
write(&events[i]);
MidiEvent event;
event.status = Pm_MessageStatus(events[i].message);
event.note = Pm_MessageData1(events[i].message);
event.velocity = Pm_MessageData2(events[i].message);
event.timeStamp = events[i].timestamp;
if(event.isNoteOff())
{
event.channel = event.status - 127;
}
if(event.isNoteOn())
event.channel = event.status - 143;
if (event.isPolyAftertouch())
event.channel = event.status = 159;
buffer.events[i] = event;
}
for(auto& listener: listeners)
listener->addBuffer(buffer);
}
}
}
void PortMidiDriver::read()
{
static const int THRESHOLD = 3; // iterations required before consecutive drum notes are not considered part of a chord
static int active = 0;
static int iter = 0;
//for some reason, some users could have "active" blocked in < 0
if (active < 0)
active = 0;
if (!inputStream)
return;
PmEvent buffer[1];
iter = (iter >= THRESHOLD) ? iter : (iter+1);
while (Pm_Poll(inputStream)) {
int n = Pm_Read(inputStream, buffer, 1);
if (n > 0) {
int status = Pm_MessageStatus(buffer[0].message);
int type = status & 0xF0;
int channel = status & 0x0F;
if (type == ME_NOTEON) {
int pitch = Pm_MessageData1(buffer[0].message);
int velo = Pm_MessageData2(buffer[0].message);
mscore->midiNoteReceived(channel, pitch, velo);
}
else if (type == ME_NOTEOFF) {
int pitch = Pm_MessageData1(buffer[0].message);
(void)Pm_MessageData2(buffer[0].message); // read but ignore
mscore->midiNoteReceived(channel, pitch, 0);
}
else if (type == ME_CONTROLLER) {
int param = Pm_MessageData1(buffer[0].message);
int value = Pm_MessageData2(buffer[0].message);
mscore->midiCtrlReceived(param, value);
}
}
}
}
bool osd_poll_midi_channel(osd_midi_device *dev)
{
PmError chk = Pm_Poll(dev->pmStream);
return (chk == pmGotData) ? true : false;
}
static int OpenMidiInDevice_(CSOUND *csound, void **userData, const char *dev)
{
int cntdev, devnum, opendevs, i;
PmEvent buffer;
PmError retval;
PmDeviceInfo *info;
// PortMidiStream *midistream;
pmall_data *data = NULL;
pmall_data *next = NULL;
if (start_portmidi(csound) != 0)
return -1;
/* check if there are any devices available */
cntdev = portMidi_getDeviceCount(0);
portMidi_listDevices(csound, 0);
/* look up device in list */
if (dev == NULL || dev[0] == '\0')
devnum =
portMidi_getPackedDeviceID((int)Pm_GetDefaultInputDeviceID(), 0);
else if (UNLIKELY((dev[0] < '0' || dev[0] > '9') && dev[0] != 'a')) {
portMidiErrMsg(csound,
Str("error: must specify a device number (>=0) or"
" 'a' for all, not a name"));
return -1;
}
else if (dev[0] != 'a') {
devnum = (int)atoi(dev);
if (UNLIKELY(devnum < 0 || devnum >= cntdev)) {
portMidiErrMsg(csound, Str("error: device number is out of range"));
return -1;
}
}
else {
// allow to proceed if 'a' is given even if there are no MIDI devices
devnum = -1;
}
if (UNLIKELY(cntdev < 1 && (dev==NULL || dev[0] != 'a'))) {
return portMidiErrMsg(csound, Str("no input devices are available"));
}
opendevs = 0;
for (i = 0; i < cntdev; i++) {
if (devnum == i || devnum == -1) {
if (opendevs == 0) {
data = (pmall_data *) malloc(sizeof(pmall_data));
next = data;
data->next = NULL;
opendevs++;
}
else {
next->next = (pmall_data *) malloc(sizeof(pmall_data));
next = next->next;
next->next = NULL;
opendevs++;
}
info = portMidi_getDeviceInfo(i, 0);
if (info->interf != NULL)
csound->Message(csound,
Str("PortMIDI: Activated input device %d: '%s' (%s)\n"),
i, info->name, info->interf);
else
csound->Message(csound,
Str("PortMIDI: Activated input device %d: '%s'\n"),
i, info->name);
retval = Pm_OpenInput(&next->midistream,
(PmDeviceID) portMidi_getRealDeviceID(i, 0),
NULL, 512L, (PmTimeProcPtr) NULL, NULL);
if (UNLIKELY(retval != pmNoError)) {
// Prevent leaking memory from "data"
if (data) {
next = data->next;
free(data);
}
return portMidiErrMsg(csound, Str("error opening input device %d: %s"),
i, Pm_GetErrorText(retval));
}
/* only interested in channel messages (note on, control change, etc.) */
/* GAB: fixed for portmidi v.23Aug06 */
Pm_SetFilter(next->midistream, (PM_FILT_ACTIVE | PM_FILT_SYSEX));
/* empty the buffer after setting filter */
while (Pm_Poll(next->midistream) == TRUE) {
Pm_Read(next->midistream, &buffer, 1);
}
}
}
*userData = (void*) data;
/* report success */
return 0;
}
bool osd_midi_device_pm::poll()
{
PmError chk = Pm_Poll(pmStream);
return (chk == pmGotData) ? true : false;
}
/* timer "interrupt" for processing midi data */
static void PMProcessMidi(PtTimestamp timestamp, void *userData)
{
ScopeMutexLock mulo(&gPmStreamMutex);
PmError result;
PmEvent buffer; /* just one message at a time */
for( int i = 0 ; i < gNumMIDIInPorts; ++i )
{
int pmdid = gMidiInputIndexToPmDevIndex[i];
PmStream* midi_in = gMIDIInStreams[i];
if( midi_in )
{
while(result = Pm_Poll(midi_in))
{
long Tstatus, data1, data2;
if (Pm_Read(midi_in, &buffer, 1) == pmBufferOverflow)
continue;
// unless there was overflow, we should have a message now
Tstatus = Pm_MessageStatus(buffer.message);
data1 = Pm_MessageData1(buffer.message);
data2 = Pm_MessageData2(buffer.message);
// +---------------------------------------------+
// | Lock the interp. mutex and dispatch message |
// +---------------------------------------------+
pthread_mutex_lock (&gLangMutex); // it is needed -jamesmcc
if (compiledOK)
{
VMGlobals *g = gMainVMGlobals;
uint8 status = static_cast<uint8>(Tstatus & 0xF0);
uint8 chan = static_cast<uint8>(Tstatus & 0x0F);
g->canCallOS = false; // cannot call the OS
++g->sp; SetObject(g->sp, s_midiin->u.classobj); // Set the class MIDIIn
//set arguments:
++g->sp; SetInt(g->sp, pmdid); //src
// ++g->sp; SetInt(g->sp, status); //status
++g->sp; SetInt(g->sp, chan); //chan
//if(status & 0x80) // set the running status for voice messages
//gRunningStatus = ((status >> 4) == 0xF) ? 0 : pkt->data[i]; // keep also additional info
switch (status)
{
case 0x80 : //noteOff
++g->sp; SetInt(g->sp, data1);
++g->sp; SetInt(g->sp, data2);
runInterpreter(g, s_midiNoteOffAction, 5);
break;
case 0x90 : //noteOn
++g->sp; SetInt(g->sp, data1);
++g->sp; SetInt(g->sp, data2);
runInterpreter(g, data2 ? s_midiNoteOnAction : s_midiNoteOffAction, 5);
break;
case 0xA0 : //polytouch
++g->sp; SetInt(g->sp, data1);
++g->sp; SetInt(g->sp, data2);
runInterpreter(g, s_midiPolyTouchAction, 5);
break;
case 0xB0 : //control
++g->sp; SetInt(g->sp, data1);
++g->sp; SetInt(g->sp, data2);
runInterpreter(g, s_midiControlAction, 5);
break;
case 0xC0 : //program
++g->sp; SetInt(g->sp, data1);
runInterpreter(g, s_midiProgramAction, 4);
break;
case 0xD0 : //touch
++g->sp; SetInt(g->sp, data1);
runInterpreter(g, s_midiTouchAction, 4);
break;
case 0xE0 : //bend
++g->sp; SetInt(g->sp, (data2 << 7) | data1);
runInterpreter(g, s_midiBendAction, 4);
break;
/*case 0xF0 :
// only the first Pm_Event will carry the 0xF0 byte
// sysex message will be terminated by the EOX status byte 0xF7
midiProcessSystemPacket(data1, data2, chan);
break;
default : // data byte => continuing sysex message
if(gRunningStatus && !gSysexFlag) { // handle running status
status = gRunningStatus & 0xF0; // accept running status only inside a packet beginning
chan = gRunningStatus & 0x0F; // with a valid status byte
SetInt(g->sp, chan);
--i;
//goto L; // parse again with running status set // mv - get next byte
}
chan = 0;
i += midiProcessSystemPacket(pkt, chan); // process sysex packet
break; */
}
g->canCallOS = false;
}
pthread_mutex_unlock (&gLangMutex);
}
} // if (midi_in)
} // for loop until numMIDIInPorts
}
static int ReadMidiData_(CSOUND *csound, void *userData,
unsigned char *mbuf, int nbytes)
{
int n, retval, st, d1, d2;
PmEvent mev;
pmall_data *data;
/*
* Reads from MIDI input device linked list.
*/
n = 0;
data = (pmall_data *)userData;
while (data) {
retval = Pm_Poll(data->midistream);
if (retval != FALSE) {
if (UNLIKELY(retval < 0))
return portMidiErrMsg(csound, Str("error polling input device"));
while ((retval = Pm_Read(data->midistream, &mev, 1L)) > 0) {
st = (int)Pm_MessageStatus(mev.message);
d1 = (int)Pm_MessageData1(mev.message);
d2 = (int)Pm_MessageData2(mev.message);
/* unknown message or sysex data: ignore */
if (UNLIKELY(st < 0x80))
continue;
/* ignore most system messages */
if (UNLIKELY(st >= 0xF0 &&
!(st == 0xF8 || st == 0xFA || st == 0xFB ||
st == 0xFC || st == 0xFF)))
continue;
nbytes -= (datbyts[(st - 0x80) >> 4] + 1);
if (UNLIKELY(nbytes < 0)) {
portMidiErrMsg(csound, Str("buffer overflow in MIDI input"));
break;
}
/* channel messages */
n += (datbyts[(st - 0x80) >> 4] + 1);
switch (datbyts[(st - 0x80) >> 4]) {
case 0:
*mbuf++ = (unsigned char) st;
break;
case 1:
*mbuf++ = (unsigned char) st;
*mbuf++ = (unsigned char) d1;
break;
case 2:
*mbuf++ = (unsigned char) st;
*mbuf++ = (unsigned char) d1;
*mbuf++ = (unsigned char) d2;
break;
}
}
if (UNLIKELY(retval < 0)) {
portMidiErrMsg(csound, Str("read error %d"), retval);
if (n < 1)
n = -1;
}
}
data = data->next;
}
/* return the number of bytes read */
return n;
}
/* timer interrupt for processing midi data */
void process_midi(PtTimestamp timestamp, void *userData)
{
PmError result;
PmEvent buffer; /* just one message at a time */
long msg;
/* do nothing until initialization completes */
if (!active)
return;
/* check for messages */
do {
result = Pm_Dequeue(main_to_midi, &msg);
if (result) {
if (msg >= -127 && msg <= 127)
transpose = msg;
else if (msg == QUIT_MSG) {
/* acknowledge receipt of quit message */
Pm_Enqueue(midi_to_main, &msg);
active = FALSE;
return;
} else if (msg == MONITOR_MSG) {
/* main has requested a pitch. monitor is a flag that
* records the request:
*/
monitor = TRUE;
} else if (msg == THRU_MSG) {
/* toggle Thru on or off */
midi_thru = !midi_thru;
}
}
} while (result);
/* see if there is any midi input to process */
do {
result = Pm_Poll(midi_in);
if (result) {
long status, data1, data2;
if (Pm_Read(midi_in, &buffer, 1) == pmBufferOverflow)
continue;
if (midi_thru)
Pm_Write(midi_out, &buffer, 1);
/* unless there was overflow, we should have a message now */
status = Pm_MessageStatus(buffer.message);
data1 = Pm_MessageData1(buffer.message);
data2 = Pm_MessageData2(buffer.message);
if ((status & 0xF0) == 0x90 ||
(status & 0xF0) == 0x80) {
/* this is a note-on or note-off, so transpose and send */
data1 += transpose;
/* keep within midi pitch range, keep proper pitch class */
while (data1 > 127)
data1 -= 12;
while (data1 < 0)
data1 += 12;
/* send the message */
buffer.message = Pm_Message(status, data1, data2);
Pm_Write(midi_out, &buffer, 1);
/* if monitor is set, send the pitch to the main thread */
if (monitor) {
Pm_Enqueue(midi_to_main, &data1);
monitor = FALSE; /* only send one pitch per request */
}
}
}
} while (result);
}
void main_test_both()
{
int i = 0;
int in, out;
PmStream * midi, * midiOut;
PmEvent buffer[1];
PmError status, length;
int num = 10;
in = get_number("Type input number: ");
out = get_number("Type output number: ");
/* In is recommended to start timer before PortMidi */
TIME_START;
Pm_OpenOutput(&midiOut,
out,
DRIVER_INFO,
OUTPUT_BUFFER_SIZE,
TIME_PROC,
TIME_INFO,
latency);
printf("Midi Output opened with %ld ms latency.\n", (long) latency);
/* open input device */
Pm_OpenInput(&midi,
in,
DRIVER_INFO,
INPUT_BUFFER_SIZE,
TIME_PROC,
TIME_INFO);
printf("Midi Input opened. Reading %d Midi messages...\n",num);
Pm_SetFilter(midi, PM_FILT_ACTIVE | PM_FILT_CLOCK);
/* empty the buffer after setting filter, just in case anything
got through */
while (Pm_Poll(midi)) {
Pm_Read(midi, buffer, 1);
}
i = 0;
while (i < num) {
status = Pm_Poll(midi);
if (status == TRUE) {
length = Pm_Read(midi,buffer,1);
if (length > 0) {
Pm_Write(midiOut, buffer, 1);
printf("Got message %d: time %ld, %2lx %2lx %2lx\n",
i,
(long) buffer[0].timestamp,
(long) Pm_MessageStatus(buffer[0].message),
(long) Pm_MessageData1(buffer[0].message),
(long) Pm_MessageData2(buffer[0].message));
i++;
} else {
assert(0);
}
}
}
/* close midi devices */
Pm_Close(midi);
Pm_Close(midiOut);
Pm_Terminate();
}