Simple VJ Controller: Resolume + Launchpad + openFrameworks

main.cpp

#include "ofMain.h"
#include "ofApp.h"

int main( ){
    ofSetupOpenGL(320, 320, OF_WINDOW);
    ofRunApp(new ofApp());
}

ofApp.cpp

#include "ofApp.h"
#include <regex>

const int midiMap[] = {
  0,    1,   2,   3,   4,   5,   6,   7,
  16,  17,  18,  19,  20,  21,  22,  23,
  32,  33,  34,  35,  36,  37,  38,  39,
  48,  49,  50,  51,  52,  53,  54,  55,
  64,  65,  66,  67,  68,  69,  70,  71,
  80,  81,  82,  83,  84,  85,  86,  87,
  96,  97,  98,  99,  100, 101, 102, 103,
  112, 113, 114, 115, 116, 117, 118, 119
};

int ledWidth = 8, ledHeight = 8;

void ofApp::setup() {
    // Setup OSC
    receiver.setup(PORT);
    sender.setup(HOST, SEND_PORT);

    // Setup MIDI
    midiIn.listPorts();
    midiIn.openPort("Launchpad");
    midiOut.openPort("Launchpad");
    midiIn.addListener(this);

    // Reset LED
    midiOut.sendControlChange(1, 0, 0);
}

void ofApp::update() {
    // Recieve OSC message
    while (receiver.hasWaitingMessages()) {
        ofxOscMessage m;
        receiver.getNextMessage(m);
        string address = m.getAddress();

        // レイヤー不透明度を指定するOSCメッセージを受信
        std::regex re("/layer([0-9]+)/video/opacity/values");
        std::smatch match;

        if (std::regex_match(address, match, re)) {
            int x = ofMap(m.getArgAsFloat(0), 0, 1, 0, 7);
            int y = ofToInt(match[1]) - 1;
            bool set;

            // 不透明度の値に合わせてLEDを横一列に点灯
            for (int i=0; i<ledWidth; i++) {
                set = i <= x ? true : false;
                ledSet(i, y, set);
            }
        }
    }
}

void ofApp::newMidiMessage(ofxMidiMessage& msg) {
    int x = msg.pitch%16;
    int y = msg.pitch/16;
    bool pressed = msg.velocity ? true : false;
    bool set;

    if (!pressed) return;

    // Send MIDI to Launchpad
    for (int i=0; i<ledWidth; i++) {
        set = i <= x ? true : false;
        ledSet(i, y, set);
    }

    // Send OSC to Resolume
    int layer = y+1;
    float opacity = ofMap(x, 0, 7, 0, 1.0);

    // レイヤー不透明度を指定するOSCメッセージを送信
    m.setAddress("/layer"+ofToString(layer)+"/video/opacity/values");
    m.addFloatArg(opacity);
    sender.sendMessage(m);
    m.clear();
}

// LaunchpadのLEDを点灯
void ofApp::ledSet(int x, int y, bool set) {
    midiOut.sendNoteOn(1, midiMap[y*ledHeight+x], set ? 127 : 0);
}

ofApp.h

#pragma once

#include "ofMain.h"
#include "ofxOsc.h"
#include "ofxMidi.h"

#define PORT 7001
#define SEND_PORT 7000
#define HOST "localhost"

class ofApp : public ofBaseApp, public ofxMidiListener {
 public:
    void setup();
    void update();

 private:
    ofxOscReceiver receiver;
    ofxOscSender sender;
    ofxOscMessage m;
    ofxMidiIn midiIn;
    ofxMidiOut midiOut;
    void newMidiMessage(ofxMidiMessage& msg);
    void ledSet(int x, int y, bool set);
};