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-MIDI IO class error checking

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This commit is contained in:
Harry van Haaren 2013-12-09 01:03:14 +00:00
parent 7f96d72d77
commit f700c2bd4e
2 changed files with 28 additions and 11 deletions
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38
src/observer/midi.cxx
View file

@ -26,7 +26,8 @@ extern Jack* jack;
MidiIO::MidiIO() :
jackInputPort(0),
jackOutputPort(0)
jackOutputPort(0),
portsRegistered(false)
{
//LUPPP_NOTE("MidiIO %i",this);
}
@ -62,25 +63,34 @@ void MidiIO::writeMidi( unsigned char* data )
int MidiIO::registerMidiPorts(std::string name)
{
if( !jack )
{
LUPPP_ERROR("Attempted register of controller, JACK not instantiated yet!");
return LUPPP_RETURN_ERROR;
}
jack_client_t* c = jack->getJackClientPointer();
// register the JACK MIDI ports
stringstream i;
i << name << " in";
jackInputPort = jack_port_register( jack->getJackClientPointer(),
i.str().c_str(),
JACK_DEFAULT_MIDI_TYPE,
JackPortIsInput,
0 );
jackInputPort = jack_port_register( c,
i.str().c_str(),
JACK_DEFAULT_MIDI_TYPE,
JackPortIsInput,
0 );
stringstream o;
o << name << " out";
jackOutputPort = jack_port_register( jack->getJackClientPointer(),
o.str().c_str(),
JACK_DEFAULT_MIDI_TYPE,
JackPortIsOutput,
0 );
jackOutputPort = jack_port_register( c,
o.str().c_str(),
JACK_DEFAULT_MIDI_TYPE,
JackPortIsOutput,
0 );
if ( jackInputPort && jackOutputPort )
{
//LUPPP_NOTE("%i, %i", jackInputPort, jackOutputPort );
portsRegistered = true;
return LUPPP_RETURN_OK;
}
else
@ -93,6 +103,9 @@ int MidiIO::registerMidiPorts(std::string name)
void MidiIO::initBuffers(int nframes)
{
if ( !portsRegistered )
return;
// clear the output buffer
void* outputBuffer= (void*) jack_port_get_buffer( jackOutputPort, nframes );
jack_midi_clear_buffer( outputBuffer );
@ -100,6 +113,9 @@ void MidiIO::initBuffers(int nframes)
void MidiIO::process(int nframes)
{
if ( !portsRegistered )
return;
// get port buffers and setup
void* inputBuffer = (void*) jack_port_get_buffer( jackInputPort, nframes );

1
src/observer/midi.hxx
View file

@ -53,6 +53,7 @@ class MidiIO
void writeMidi( unsigned char* /*data*/ );
private:
bool portsRegistered;
// there are jack_port_t* registered ports
jack_port_t* jackInputPort;
jack_port_t* jackOutputPort;