hashtags/lmms
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Wiki Activity

Refactor writing MIDI events to buffers

Browse Source 
This moves out the code from the carla plugin into the core, because
this code will be re-used for Lv2 MIDI handling soon.
This commit is contained in:
Johannes Lorenz
2020-10-17 20:00:13 +02:00
committed by Johannes Lorenz
parent b64fe8e7c0
commit 9db671c7ae
4 changed files with 159 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
plugins/carlabase/carla.cpp
View File

@@ -29,6 +29,7 @@
#include "gui_templates.h"
#include "InstrumentPlayHandle.h"
#include "InstrumentTrack.h"
#include "MidiEventToByteSeq.h"
#include "Mixer.h"
#include <QApplication>
@@ -372,69 +373,9 @@ bool CarlaInstrument::handleMidiEvent(const MidiEvent& event, const MidiTime&, f
nEvent.port = 0;
nEvent.time = offset;
nEvent.data[0] = event.type() | (event.channel() & 0x0F);
switch (event.type())
{
case MidiNoteOn:
if (event.velocity() > 0)
{
if (event.key() < 0 || event.key() > MidiMaxKey)
break;
nEvent.data[1] = event.key();
nEvent.data[2] = event.velocity();
nEvent.size = 3;
break;
}
else
{
nEvent.data[0] = MidiNoteOff | (event.channel() & 0x0F);
// nobreak
}
case MidiNoteOff:
if (event.key() < 0 || event.key() > MidiMaxKey)
break;
nEvent.data[1] = event.key();
nEvent.data[2] = event.velocity();
nEvent.size = 3;
break;
case MidiKeyPressure:
nEvent.data[1] = event.key();
nEvent.data[2] = event.velocity();
nEvent.size = 3;
break;
case MidiControlChange:
nEvent.data[1] = event.controllerNumber();
nEvent.data[2] = event.controllerValue();
nEvent.size = 3;
break;
case MidiProgramChange:
nEvent.data[1] = event.program();
nEvent.size = 2;
break;
case MidiChannelPressure:
nEvent.data[1] = event.channelPressure();
nEvent.size = 2;
break;
case MidiPitchBend:
nEvent.data[1] = event.pitchBend() & 0x7f;
nEvent.data[2] = event.pitchBend() >> 7;
nEvent.size = 3;
break;
default:
// unhandled
--fMidiEventCount;
break;
}
std::size_t written = writeToByteSeq(event, nEvent.data, sizeof(NativeMidiEvent::data));
if(written) { nEvent.size = written; }
else { --fMidiEventCount; }
return true;
}