void prepareToPlay (int samplesPerBlockExpected, double sampleRate) { midiCollector.reset (sampleRate); synth.setCurrentPlaybackSampleRate (sampleRate); }
void getNextAudioBlock (const AudioSourceChannelInfo& bufferToFill) { // the synth always adds its output to the audio buffer, so we have to clear it // first.. bufferToFill.clearActiveBufferRegion(); // fill a midi buffer with incoming messages from the midi input. MidiBuffer incomingMidi; midiCollector.removeNextBlockOfMessages (incomingMidi, bufferToFill.numSamples); // and now get the synth to process the midi events and generate its output. synth.renderNextBlock (*bufferToFill.buffer, incomingMidi, 0, bufferToFill.numSamples); }
void getNextAudioBlock (const AudioSourceChannelInfo& bufferToFill) { // the synth always adds its output to the audio buffer, so we have to clear it // first.. bufferToFill.clearActiveBufferRegion(); // fill a midi buffer with incoming messages from the midi input. MidiBuffer incomingMidi; midiCollector.removeNextBlockOfMessages (incomingMidi, bufferToFill.numSamples); // pass these messages to the keyboard state so that it can update the component // to show on-screen which keys are being pressed on the physical midi keyboard. // This call will also add midi messages to the buffer which were generated by // the mouse-clicking on the on-screen keyboard. keyboardState.processNextMidiBuffer (incomingMidi, 0, bufferToFill.numSamples, true); // and now get the synth to process the midi events and generate its output. synth.renderNextBlock (*bufferToFill.buffer, incomingMidi, 0, bufferToFill.numSamples); }
//============================================================================== void MidiMonitorEditor::timerCallback () { MidiBuffer tmpBuffer; int hours, minutes, seconds, frames; MidiMessage::SmpteTimecodeType timeCode; MidiMessageCollector* collector = owner->getMessageCollector (); collector->removeNextBlockOfMessages (tmpBuffer, 1024); if (! tmpBuffer.isEmpty()) { String midiLine; int samplePos = 0; MidiMessage msg (0xf4, 0.0); MidiBuffer::Iterator eventIterator (tmpBuffer); while (eventIterator.getNextEvent (msg, samplePos)) { midiLine.printf (T("[CH: %d] "), msg.getChannel()); if (msg.isNoteOnOrOff ()) { midiLine += MidiMessage::getMidiNoteName (msg.getNoteNumber(), true, true, 0); midiLine += " "; midiLine += String ((int) msg.getVelocity ()); if (msg.isNoteOn()) { midiLine += " ON"; } else { midiLine += " OFF"; } } else if (msg.isAllNotesOff()) { midiLine += "ALL NOTES OFF"; } else if (msg.isAllSoundOff()) { midiLine += "ALL SOUND OFF"; } else if (msg.isPitchWheel()) { midiLine += "PITCHWEEL: "; midiLine += String (msg.getPitchWheelValue()); } else if (msg.isAftertouch()) { midiLine += "AFTERTOUCH: "; midiLine += String (msg.getAfterTouchValue()); } else if (msg.isChannelPressure()) { midiLine += "CHANNELPRESSURE: "; midiLine += String (msg.getChannelPressureValue()); } else if (msg.isSysEx()) { midiLine += "SYSEX: "; midiLine += String (msg.getSysExDataSize()); midiLine += " bytes"; } else if (msg.isProgramChange()) { midiLine += "PROGRAM CHANGE: "; midiLine += String (msg.getProgramChangeNumber()); midiLine += " ("; midiLine += MidiMessage::getGMInstrumentName (msg.getProgramChangeNumber()); midiLine += ")"; } else if (msg.isController()) { midiLine += "CC: #"; midiLine += String (msg.getControllerNumber()); midiLine += " ("; midiLine += MidiMessage::getControllerName (msg.getControllerNumber()); midiLine += ") = "; midiLine += String (msg.getControllerValue()); } else if (msg.isTimeSignatureMetaEvent ()) { int newNumerator, newDenominator; msg.getTimeSignatureInfo (newNumerator, newDenominator); midiLine += "TIME SIGNATURE: "; midiLine += String (newNumerator); midiLine += " / "; midiLine += String (newDenominator); } else if (msg.isTempoMetaEvent ()) { midiLine += "TEMPO: "; midiLine += String (msg.getTempoSecondsPerQuarterNote ()); //midiLine += " "; //midiLine += String (msg.getTempoMetaEventTickLength (ticksPerQuarterNote)); } else if (msg.isMidiMachineControlMessage()) { midiLine += "MIDI CONTROL: "; switch (msg.getMidiMachineControlCommand()) { case MidiMessage::mmc_stop: midiLine += "stop"; break; case MidiMessage::mmc_play: midiLine += "play"; break; case MidiMessage::mmc_deferredplay: midiLine += "deferredplay"; break; case MidiMessage::mmc_fastforward: midiLine += "fastforward"; break; case MidiMessage::mmc_rewind: midiLine += "rewind"; break; case MidiMessage::mmc_recordStart: midiLine += "recordStart"; break; case MidiMessage::mmc_recordStop: midiLine += "recordStop"; break; case MidiMessage::mmc_pause: midiLine += "pause"; break; } } else if (msg.isMidiStart ()) { midiLine += "MIDI START: "; } else if (msg.isMidiContinue ()) { midiLine += "MIDI CONTINUE: "; } else if (msg.isMidiStop ()) { midiLine += "MIDI STOP: "; } else if (msg.isSongPositionPointer ()) { midiLine += "SONG POSITION: "; midiLine += String (msg.getSongPositionPointerMidiBeat ()); } else if (msg.isQuarterFrame ()) { midiLine += "QUARTER FRAME: "; midiLine += String (msg.getQuarterFrameSequenceNumber ()); midiLine += " "; midiLine += String (msg.getQuarterFrameValue ()); } else if (msg.isFullFrame ()) { midiLine += "FULL FRAME: "; msg.getFullFrameParameters (hours, minutes, seconds, frames, timeCode); midiLine += String (hours); midiLine += ":"; midiLine += String (minutes); midiLine += ":"; midiLine += String (seconds); midiLine += ":"; midiLine += String (frames); midiLine += " timecode: "; switch (timeCode) { case MidiMessage::fps24: midiLine += "fps24"; break; case MidiMessage::fps25: midiLine += "fps25"; break; case MidiMessage::fps30drop: midiLine += "fps30drop"; break; case MidiMessage::fps30: midiLine += "fps30"; break; } } else if (msg.isMidiMachineControlGoto (hours, minutes, seconds, frames)) { midiLine += "MIDI CONTROL GOTO: "; midiLine += String (hours); midiLine += ":"; midiLine += String (minutes); midiLine += ":"; midiLine += String (seconds); midiLine += ":"; midiLine += String (frames); } midiOutputEditor->insertTextAtCursor (midiLine + T("\n")); } } }