rtmidi-c-wrapper
A C wrapper layer for RtMidi. I did this to target Unity platform as I'm playing with Unity and my electric piano
This library uses RtMidi as a base and creates a façade in C to be used from any source that needs native C code interface. The intention is to use it with Unity3D but may be useful for other things.
For information on RtMidi see:
https://www.music.mcgill.ca/~gary/rtmidi/
Basic usage:
//Environment
setupEnv(); //MANDATORY CALL BEFORE ANYTHING ELSE
////////////////////////////////
//Input handling
///////////////////////////////
//Input Setup
createInput();
//checking how many input ports there are
unsigned int i_ports = getInPortCount();
//opening an input midi port
unsigned int port_num = 0;
openInputPort(port_num);
//checking if it's open
isInputPortOpen();
//getting input port names
unsigned char[512] name;
getInputPortName(name,port_num);
///Getting the messages is a bit more complex and needs bit shifting:
long msg = getNextMessageAsLong();
//bytes are ordered from the highest significant byte to the lowest, mainly the messages are noteOn and noteOff
//the same can be obtained as an unsigned int, the message is maximum 4 bytes
unsigned int msgi = getNextMessageAsUInt();
////////////////////////////////
//Output Handling
////////////////////////////////
output handling is almost the same a sinput handling
createOutput();
openOutputPort(int port = 0);
int is_out_open = isOutputPortOpen();
unsigned int o_count = getOutPortCount();
getOutputPortName(name,port_num);
//MIDI Output, for notes there is direcly a handler because it is my main goal
void noteOn(byte id, byte velocity, int channel);
//and
noteOff(byte id, int channel);
//closing ports
closeInputPort();
closeOutputPort();
//termination
destroyInput();
destroyOutput();
cleanupInputEnv();
For more examples soon I'll be uploading the complete C# Unity wrapper I'm using
Please feel free to improve the wrapper and ask for a pull request.
If you use and improve the wrapper please be kind to share the improvements with me so I can merge them.