MidiBuffer MPEMessages::setZoneLayout (const MPEZoneLayout& layout)
{
MidiBuffer buffer;
buffer.addEvents (clearAllZones(), 0, -1, 0);
for (int i = 0; i < layout.getNumZones(); ++i)
buffer.addEvents (addZone (*layout.getZoneByIndex (i)), 0, -1, 0);
return buffer;
}
MidiBuffer MPEMessages::addZone (MPEZone zone)
{
MidiBuffer buffer (MidiRPNGenerator::generate (zone.getFirstNoteChannel(),
zoneLayoutMessagesRpnNumber,
zone.getNumNoteChannels(),
false, false));
buffer.addEvents (perNotePitchbendRange (zone), 0, -1, 0);
buffer.addEvents (masterPitchbendRange (zone), 0, -1, 0);
return buffer;
}
void DemoJuceFilter::processBlock (AudioSampleBuffer& buffer,
MidiBuffer& midiMessages)
{
if (isSyncedToHost)
{
AudioPlayHead::CurrentPositionInfo pos;
if (getPlayHead() != 0 && getPlayHead()->getCurrentPosition (pos))
{
if (memcmp (&pos, &lastPosInfo, sizeof (pos)) != 0)
{
lastPosInfo = pos;
const int ppqPerBar = (pos.timeSigNumerator * 4 / pos.timeSigDenominator);
const double beats = (fmod (pos.ppqPosition, ppqPerBar) / ppqPerBar) * pos.timeSigNumerator;
const double position = beats*4;
const int beat = (int)position;
currentBpm = (int)pos.bpm;
if (_p != beat)
{
for (int x=0; x<64; x++)
{
if (activePatterns[x])
{
patterns[x]->forward(beat+1);
}
}
currentBeat = currentPatternPtr->getCurrentPosition();
if (currentBeat > 16)
currentBeat = currentBeat - 16;
/* process midi events to their devices */
midiMessages.addEvents (midiManager.getVstMidiEvents(),0,-1,0);
/* clean the buffers */
midiManager.clear();
sendChangeMessage (this);
}
_p = beat;
}
}
else
{
zeromem (&lastPosInfo, sizeof (lastPosInfo));
lastPosInfo.timeSigNumerator = 4;
lastPosInfo.timeSigDenominator = 4;
lastPosInfo.bpm = 120;
}
}
}
void perform (AudioBuffer<FloatType>& buffer, MidiBuffer& midiMessages, AudioPlayHead* audioPlayHead)
{
auto numSamples = buffer.getNumSamples();
auto maxSamples = renderingBuffer.getNumSamples();
if (numSamples > maxSamples)
{
// being asked to render more samples than our buffers have, so slice things up...
tempMIDI.clear();
tempMIDI.addEvents (midiMessages, maxSamples, numSamples, -maxSamples);
{
AudioBuffer<FloatType> startAudio (buffer.getArrayOfWritePointers(), buffer.getNumChannels(), maxSamples);
midiMessages.clear (maxSamples, numSamples);
perform (startAudio, midiMessages, audioPlayHead);
}
AudioBuffer<FloatType> endAudio (buffer.getArrayOfWritePointers(), buffer.getNumChannels(), maxSamples, numSamples - maxSamples);
perform (endAudio, tempMIDI, audioPlayHead);
return;
}
currentAudioInputBuffer = &buffer;
currentAudioOutputBuffer.setSize (jmax (1, buffer.getNumChannels()), numSamples);
currentAudioOutputBuffer.clear();
currentMidiInputBuffer = &midiMessages;
currentMidiOutputBuffer.clear();
{
const Context context { renderingBuffer.getArrayOfWritePointers(), midiBuffers.begin(), audioPlayHead, numSamples };
for (auto* op : renderOps)
op->perform (context);
}
for (int i = 0; i < buffer.getNumChannels(); ++i)
buffer.copyFrom (i, 0, currentAudioOutputBuffer, i, 0, numSamples);
midiMessages.clear();
midiMessages.addEvents (currentMidiOutputBuffer, 0, buffer.getNumSamples(), 0);
currentAudioInputBuffer = nullptr;
}
void runTest() override
{
beginTest ("initialisation");
{
MPEZoneLayout layout;
expectEquals (layout.getNumZones(), 0);
}
beginTest ("adding zones");
{
MPEZoneLayout layout;
expect (layout.addZone (MPEZone (1, 7)));
expectEquals (layout.getNumZones(), 1);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 7);
expect (layout.addZone (MPEZone (9, 7)));
expectEquals (layout.getNumZones(), 2);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 7);
expectEquals (layout.getZoneByIndex (1)->getMasterChannel(), 9);
expectEquals (layout.getZoneByIndex (1)->getNumNoteChannels(), 7);
expect (! layout.addZone (MPEZone (5, 3)));
expectEquals (layout.getNumZones(), 3);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 3);
expectEquals (layout.getZoneByIndex (1)->getMasterChannel(), 9);
expectEquals (layout.getZoneByIndex (1)->getNumNoteChannels(), 7);
expectEquals (layout.getZoneByIndex (2)->getMasterChannel(), 5);
expectEquals (layout.getZoneByIndex (2)->getNumNoteChannels(), 3);
expect (! layout.addZone (MPEZone (5, 4)));
expectEquals (layout.getNumZones(), 2);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 3);
expectEquals (layout.getZoneByIndex (1)->getMasterChannel(), 5);
expectEquals (layout.getZoneByIndex (1)->getNumNoteChannels(), 4);
expect (! layout.addZone (MPEZone (6, 4)));
expectEquals (layout.getNumZones(), 2);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 3);
expectEquals (layout.getZoneByIndex (1)->getMasterChannel(), 6);
expectEquals (layout.getZoneByIndex (1)->getNumNoteChannels(), 4);
}
beginTest ("querying zones");
{
MPEZoneLayout layout;
layout.addZone (MPEZone (2, 5));
layout.addZone (MPEZone (9, 4));
expect (layout.getZoneByMasterChannel (1) == nullptr);
expect (layout.getZoneByMasterChannel (2) != nullptr);
expect (layout.getZoneByMasterChannel (3) == nullptr);
expect (layout.getZoneByMasterChannel (8) == nullptr);
expect (layout.getZoneByMasterChannel (9) != nullptr);
expect (layout.getZoneByMasterChannel (10) == nullptr);
expectEquals (layout.getZoneByMasterChannel (2)->getNumNoteChannels(), 5);
expectEquals (layout.getZoneByMasterChannel (9)->getNumNoteChannels(), 4);
expect (layout.getZoneByFirstNoteChannel (2) == nullptr);
expect (layout.getZoneByFirstNoteChannel (3) != nullptr);
expect (layout.getZoneByFirstNoteChannel (4) == nullptr);
expect (layout.getZoneByFirstNoteChannel (9) == nullptr);
expect (layout.getZoneByFirstNoteChannel (10) != nullptr);
expect (layout.getZoneByFirstNoteChannel (11) == nullptr);
expectEquals (layout.getZoneByFirstNoteChannel (3)->getNumNoteChannels(), 5);
expectEquals (layout.getZoneByFirstNoteChannel (10)->getNumNoteChannels(), 4);
expect (layout.getZoneByNoteChannel (2) == nullptr);
expect (layout.getZoneByNoteChannel (3) != nullptr);
expect (layout.getZoneByNoteChannel (4) != nullptr);
expect (layout.getZoneByNoteChannel (6) != nullptr);
expect (layout.getZoneByNoteChannel (7) != nullptr);
expect (layout.getZoneByNoteChannel (8) == nullptr);
expect (layout.getZoneByNoteChannel (9) == nullptr);
expect (layout.getZoneByNoteChannel (10) != nullptr);
expect (layout.getZoneByNoteChannel (11) != nullptr);
expect (layout.getZoneByNoteChannel (12) != nullptr);
expect (layout.getZoneByNoteChannel (13) != nullptr);
expect (layout.getZoneByNoteChannel (14) == nullptr);
expectEquals (layout.getZoneByNoteChannel (5)->getNumNoteChannels(), 5);
expectEquals (layout.getZoneByNoteChannel (13)->getNumNoteChannels(), 4);
}
beginTest ("clear all zones");
{
MPEZoneLayout layout;
expect (layout.addZone (MPEZone (1, 7)));
expect (layout.addZone (MPEZone (10, 2)));
layout.clearAllZones();
expectEquals (layout.getNumZones(), 0);
}
beginTest ("process MIDI buffers");
{
MPEZoneLayout layout;
MidiBuffer buffer;
buffer = MPEMessages::addZone (MPEZone (1, 7));
layout.processNextMidiBuffer (buffer);
expectEquals (layout.getNumZones(), 1);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 7);
buffer = MPEMessages::addZone (MPEZone (9, 7));
layout.processNextMidiBuffer (buffer);
expectEquals (layout.getNumZones(), 2);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 7);
expectEquals (layout.getZoneByIndex (1)->getMasterChannel(), 9);
expectEquals (layout.getZoneByIndex (1)->getNumNoteChannels(), 7);
MPEZone zone (1, 10);
buffer = MPEMessages::addZone (zone);
layout.processNextMidiBuffer (buffer);
expectEquals (layout.getNumZones(), 1);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 10);
zone.setPerNotePitchbendRange (33);
zone.setMasterPitchbendRange (44);
buffer = MPEMessages::masterPitchbendRange (zone);
buffer.addEvents (MPEMessages::perNotePitchbendRange (zone), 0, -1, 0);
layout.processNextMidiBuffer (buffer);
expectEquals (layout.getZoneByIndex (0)->getPerNotePitchbendRange(), 33);
expectEquals (layout.getZoneByIndex (0)->getMasterPitchbendRange(), 44);
}
beginTest ("process individual MIDI messages");
{
MPEZoneLayout layout;
layout.processNextMidiEvent (MidiMessage (0x80, 0x59, 0xd0)); // unrelated note-off msg
layout.processNextMidiEvent (MidiMessage (0xb1, 0x64, 0x06)); // RPN part 1
layout.processNextMidiEvent (MidiMessage (0xb1, 0x65, 0x00)); // RPN part 2
layout.processNextMidiEvent (MidiMessage (0xb8, 0x0b, 0x66)); // unrelated CC msg
layout.processNextMidiEvent (MidiMessage (0xb1, 0x06, 0x03)); // RPN part 3
layout.processNextMidiEvent (MidiMessage (0x90, 0x60, 0x00)); // unrelated note-on msg
expectEquals (layout.getNumZones(), 1);
expectEquals (layout.getZoneByIndex (0)->getMasterChannel(), 1);
expectEquals (layout.getZoneByIndex (0)->getNumNoteChannels(), 3);
}
}
void PatternRecording::recordPattern(MidiBuffer &midiMessages, const int &numSamples)
{
// if we are recording the pattern, just rip the
// MIDI messages from the incoming buffer
if (isPatternRecording)
{
// get the iterator for the incoming buffer
// so we can check through the messages
MidiBuffer::Iterator i(midiMessages);
MidiMessage message (0xf4, 0.0);
int time;
// if we are still during the precount, do nothing
if (patternPrecountPosition > numSamples)
patternPrecountPosition -= numSamples;
// if the precount finishes during this buffer
else if (patternPrecountPosition > 0)
{
// TODO: overdub could be option here?
midiPattern.clear();
const int numSamplesToAdd = numSamples - patternPrecountPosition;
// DBG("#1 recording " << numSamplesToAdd << " of midi, pos: " << patternPrecountPosition);
// get messages from the main MIDI message queue
while(i.getNextEvent(message, time))
{
// and add them if they occur after the precount runs out
if (time > patternPrecountPosition)
{
midiPattern.addEvent(message, time - patternPrecountPosition);
// store noteOffs to fire at end
if (message.isNoteOn())
{
MidiMessage tempNoteOff = MidiMessage::noteOff(message.getChannel(), message.getNoteNumber(), message.getVelocity());
noteOffs.addEvent(tempNoteOff, 0);
}
}
}
// the precount has finished
patternPrecountPosition = 0;
// we are now numSamplesToAdd into the buffer
patternPosition = numSamplesToAdd;
}
else
{
// if we are during recording (and not near the end), just
// add the current input into the record buffer
if (numSamples + patternPosition < patternLengthInSamples)
{
// DBG("#2 recording " << numSamples << " of midi, pos: " << patternPosition);
// get messages from the main MIDI message queue
while(i.getNextEvent(message, time))
{
midiPattern.addEvent(message, time + patternPosition);
// store noteOffs to fire at end
if (message.isNoteOn())
{
MidiMessage tempNoteOff = MidiMessage::noteOff(message.getChannel(), message.getNoteNumber(), message.getVelocity());
noteOffs.addEvent(tempNoteOff, 0);
}
}
//midiPattern.addEvents(midiMessages, 0, numSamples, -patternPosition);
patternPosition += numSamples;
}
// otherwise we are finishing up
else
{
const int numSamplesLeftToRecord = patternLengthInSamples - patternPosition;
// add remaining messages from the main MIDI message queue
while(i.getNextEvent(message, time))
{
if (time < numSamplesLeftToRecord)
midiPattern.addEvent(message, time + patternPosition);
// store noteOffs to fire at end
if (message.isNoteOn())
{
MidiMessage tempNoteOff = MidiMessage::noteOff(message.getChannel(), message.getNoteNumber(), message.getVelocity());
noteOffs.addEvent(tempNoteOff, 0);
}
}
// add the note offs to clear any "phantom notes"
midiPattern.addEvents(noteOffs, 0, 1, patternLengthInSamples - 1);
// we are no longer recording
isPatternRecording = false;
// if we finish recording, let any listeners know
// so they can redraw representations of the pattern
sendChangeMessage();
DBG("pattern " << patternBank << " finished recording.");
// start playing back from the start straight away
isPatternStopping = false;
isPatternPlaying = true;
patternPosition = 0;
// fill the remaining buffer with the newly recorded sequence
const int samplesRemaining = numSamples - numSamplesLeftToRecord;
if (patternPosition + samplesRemaining < patternLengthInSamples)
{
midiMessages.addEvents(midiPattern, patternPosition, samplesRemaining, numSamplesLeftToRecord);
patternPosition += samplesRemaining;
}
}
// Let the PatternStripControl know to recache pattern
sendChangeMessage();
}
}
}
void PatternRecording::playPattern(MidiBuffer &midiMessages, const int &numSamples)
{
// if the pattern is playing, add its events to the
// Midi message queue
if (isPatternPlaying)
{
// if we are stopping
if (isPatternStopping)
{
// add the note off events to the end off the buffer
// to avoid any hanging notes
midiMessages.addEvents(noteOffs, 0, 1, numSamples - 1);
isPatternPlaying = false;
isPatternStopping = false;
// we are finished here
return;
}
// calculate the correction to timesteps relative
// to the current MIDI buffer
const int correction = -patternPosition;
if (patternPosition + numSamples < patternLengthInSamples)
{
midiMessages.addEvents(midiPattern, patternPosition, numSamples, correction);
patternPosition += numSamples;
}
else
{
// see how many samples of the pattern we have left to play back
const int numToAdd = patternLengthInSamples - patternPosition;
// and add them to the main MIDI buffer
midiMessages.addEvents(midiPattern, patternPosition, numToAdd, correction);
// reset position
patternPosition = 0;
// if we are looping the pattern
if (doesPatternLoop)
{
isPatternStopping = false;
isPatternPlaying = true;
// go back to the start of the pattern and add these samples
// to what remains of the main MIDI buffer
const int samplesRemainingInBuffer = numSamples - numToAdd;
// remembering that these are offset so as to start where
// the previously playing pattern finished
const int offset = numToAdd;
midiMessages.addEvents(midiPattern, patternPosition, samplesRemainingInBuffer, offset);
patternPosition += samplesRemainingInBuffer;
}
else
{
isPatternPlaying = false;
}
}
}
}
void MidiControllerAutomationHandler::handleParameterData(MidiBuffer &b)
{
const bool bufferEmpty = b.isEmpty();
const bool noCCsUsed = !anyUsed && !unlearnedData.used;
if (bufferEmpty || noCCsUsed) return;
tempBuffer.clear();
MidiBuffer::Iterator mb(b);
MidiMessage m;
int samplePos;
while (mb.getNextEvent(m, samplePos))
{
bool consumed = false;
if (m.isController())
{
const int number = m.getControllerNumber();
if (isLearningActive())
{
setUnlearndedMidiControlNumber(number, sendNotification);
}
for (auto& a : automationData[number])
{
if (a.used)
{
jassert(a.processor.get() != nullptr);
auto normalizedValue = (double)m.getControllerValue() / 127.0;
if (a.inverted) normalizedValue = 1.0 - normalizedValue;
const double value = a.parameterRange.convertFrom0to1(normalizedValue);
const float snappedValue = (float)a.parameterRange.snapToLegalValue(value);
if (a.macroIndex != -1)
{
a.processor->getMainController()->getMacroManager().getMacroChain()->setMacroControl(a.macroIndex, (float)m.getControllerValue(), sendNotification);
}
else
{
if (a.lastValue != snappedValue)
{
a.processor->setAttribute(a.attribute, snappedValue, sendNotification);
a.lastValue = snappedValue;
}
}
consumed = true;
}
}
}
if (!consumed) tempBuffer.addEvent(m, samplePos);
}
b.clear();
b.addEvents(tempBuffer, 0, -1, 0);
}
void MidiOutFilter::processBlock (AudioSampleBuffer& buffer,
MidiBuffer& midiMessages)
{
for (int i = 0; i < getNumOutputChannels(); ++i)
{
buffer.clear (i, 0, buffer.getNumSamples());
}
const double SR=getSampleRate();
const double iSR=1.0/SR;
AudioPlayHead::CurrentPositionInfo pos;
if (getPlayHead() != 0 && getPlayHead()->getCurrentPosition (pos))
{
if (memcmp (&pos, &lastPosInfo, sizeof (pos)) != 0)
{
if(param[kMTC]>=0.5f) {
double frameRate=24.0;
int mtcFrameRate=0;
const double samplesPerPpq=60.0*SR/pos.bpm;
const double samplesPerClock = SR/(4.0*frameRate);
const long double seconds = (long double)(pos.ppqPosition*60.0f/pos.bpm) /*+ smpteOffset*/;
const long double absSecs = fabs (seconds);
const bool neg = seconds < 0.0;
int hours, mins, secs, frames;
if (frameRate==29.97) {
int64 frameNumber = int64(absSecs*29.97);
frameNumber += 18*(frameNumber/17982) + 2*(((frameNumber%17982) - 2) / 1798);
hours = int((((frameNumber / 30) / 60) / 60) % 24);
mins = int(((frameNumber / 30) / 60) % 60);
secs = int((frameNumber / 30) % 60);
frames = int(frameNumber % 30);
}
else {
hours = (int) (absSecs / (60.0 * 60.0));
mins = ((int) (absSecs / 60.0)) % 60;
secs = ((int) absSecs) % 60;
frames = (int)(int64(absSecs*frameRate) % (int)frameRate);
}
if (pos.isPlaying)
{
double i=0.0;
const double clockppq = fmod(absSecs*frameRate*4.0,(long double)1.0);
samplesToNextMTC = (int)(samplesPerClock * (clockppq+i));
i+=1.0;
if (!wasPlaying) {
//this is so the song position pointer will be sent before any
//other data at the beginning of the song
MidiBuffer temp = midiMessages;
midiMessages.clear();
if (samplesToNextMTC<buffer.getNumSamples()) {
int mtcData;
switch (mtcNumber)
{
case 0: mtcData=frames&0x0f; break;
case 1: mtcData=(frames&0xf0)>>4; break;
case 2: mtcData=secs&0x0f; break;
case 3: mtcData=(secs&0xf0)>>4; break;
case 4: mtcData=mins&0x0f; break;
case 5: mtcData=(mins&0xf0)>>4; break;
case 6: mtcData=hours&0x0f; break;
case 7: mtcData=(hours&0x10)>>4 | mtcFrameRate; break;
}
MidiMessage midiclock(0xf1,(mtcNumber<<4)|(mtcData));
++mtcNumber;
mtcNumber&=0x07;
midiMessages.addEvent(midiclock,samplesToNextMTC);
samplesToNextMTC = (int)(samplesPerClock * (clockppq+i));
i+=1.0;
startMTCAt=-999.0;
sendmtc=true;
}
midiMessages.addEvents(temp,0,buffer.getNumSamples(),0);
}
if (startMTCAt >-999.0 && (int)(samplesPerPpq*(startMTCAt-pos.ppqPosition))<buffer.getNumSamples()) {
samplesToNextMTC = (int)(samplesPerPpq*(startMTCAt-pos.ppqPosition));
int mtcData;
switch (mtcNumber)
{
case 0: mtcData=frames&0x0f; break;
case 1: mtcData=(frames&0xf0)>>4; break;
case 2: mtcData=secs&0x0f; break;
case 3: mtcData=(secs&0xf0)>>4; break;
case 4: mtcData=mins&0x0f; break;
case 5: mtcData=(mins&0xf0)>>4; break;
case 6: mtcData=hours&0x0f; break;
case 7: mtcData=(hours&0x10)>>4 | mtcFrameRate; break;
}
MidiMessage midiclock(0xf1,(mtcNumber<<4)|(mtcData));
++mtcNumber;
mtcNumber&=0x07;
midiMessages.addEvent(midiclock,samplesToNextMTC);
samplesToNextMTC = (int)(samplesPerClock * (clockppq+i));
i+=1.0;
startMTCAt=-999.0;
sendmtc=true;
}
