mixxx-data 2.0.0~dfsg-4 / usr / share / mixxx / controllers / Numark-MixTrack-scripts.js

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// Numark Mixtrack Mapping Script Functions
// 26/06/2011 - v1.0b
// Matteo <matteo@magm3.com>
// With contributions from
//    uncleeugene
//    RAWRR
function NumarkMixTrack() {}


NumarkMixTrack.init = function(id) {    // called when the MIDI device is opened & set up
    NumarkMixTrack.id = id;    // Store the ID of this device for later use
    NumarkMixTrack.directoryMode = false;
    NumarkMixTrack.scratchMode = [false, false];
    NumarkMixTrack.scratching = [false, false];
    NumarkMixTrack.KeyIsLocked = [false,false];
    NumarkMixTrack.manualLooping = [false, false];
    NumarkMixTrack.leds = [
            // Common
            { "directory": 0x73, "file": 0x72 },
            // Deck 1
            { "rate": 0x70, "scratchMode": 0x48, "keylock": 0x51, "manualLoop": 0x61, "loopIn": 0x53, "loopOut": 0x54, "reLoop": 0x55 },
            // Deck 2
            { "rate": 0x71, "scratchMode": 0x50, "keylock": 0x52, "manualLoop": 0x62, "loopIn": 0x56, "loopOut": 0x57, "reLoop": 0x58 }
        ];
    NumarkMixTrack.setLED(NumarkMixTrack.leds[0]["file"], true);
}

NumarkMixTrack.shutdown = function(id) {    // called when the MIDI device is closed
    var lowestLED = 0x30;
    var highestLED = 0x73;
    for (var i=lowestLED; i<=highestLED; i++) {
        NumarkMixTrack.setLED(i, false);    // Turn off all the lights
    }
}

NumarkMixTrack.groupToDeck = function(group) {
    var matches = group.match(/^\[Channel(\d+)\]$/);
    if (matches == null) {
        return -1;
    } else {
        return matches[1];
    }
}

NumarkMixTrack.samplesPerBeat = function(group) {
    // FIXME: Get correct channels for current deck
    var sampleRate = engine.getValue(group, "track_samplerate");
    var channels = 2;
    var bpm = engine.getValue(group, "file_bpm");
    var ret=channels * sampleRate * 60 / bpm;
    return channels * sampleRate * 60 / bpm;
}

NumarkMixTrack.setLED = function(value, status) {
    if (status) {
        status = 0x64;
    } else {
        status = 0x00;
    }
    midi.sendShortMsg(0x90, value, status);
}

NumarkMixTrack.selectKnob = function(channel, control, value, status, group) {
    if (value > 63) {
        value = value - 128;
    }
    if (NumarkMixTrack.directoryMode) {
        if (value < 0) {
            for (var i = 0; i < -value; i++) {
                engine.setValue(group, "SelectNextPlaylist", 1);
            }
        } else {
            for (var i = 0; i < value; i++) {
                engine.setValue(group, "SelectPrevPlaylist", 1);
            }
        }
    } else {
        engine.setValue(group, "SelectTrackKnob", -value);
    }
}

NumarkMixTrack.loopIn = function(channel, control, value, status, group) {
        var deck = NumarkMixTrack.groupToDeck(group);
    if (value) {
        if(NumarkMixTrack.manualLooping[deck-1]) {
                // Cut loop to Half
                var start = engine.getValue(group, "loop_start_position");
                var end = engine.getValue(group, "loop_end_position");
                if((start != -1) && (end != -1)) {
                    var len = (end - start) / 2;
                    engine.setValue(group, "loop_end_position", start + len);
                }
        } else {
            if (engine.getValue(group, "loop_enabled")) {
                engine.setValue(group, "reloop_exit", 1);
                NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["reLoop"],false);
            }
            engine.setValue(group, "loop_in", 1);
            engine.setValue(group, "loop_end_position", -1);
            NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopIn"],true);
            NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopOut"],false);
        }
    }
}

NumarkMixTrack.loopOut = function(channel, control, value, status, group) {
        var deck = NumarkMixTrack.groupToDeck(group);
    if (value) {
        var start = engine.getValue(group, "loop_start_position");
        var end = engine.getValue(group, "loop_end_position");

        if(NumarkMixTrack.manualLooping[deck-1]) {
            // Set loop to current Bar
            var bar = NumarkMixTrack.samplesPerBeat(group);
            start = Math.ceil((engine.getValue(group, "playposition")*engine.getValue(group, "track_samples")/bar)-1)*bar;

            engine.setValue(group,"loop_start_position",start);
            engine.setValue(group,"loop_end_position", start + bar);
            engine.setValue(group, "reloop_exit",1);
            NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopIn"],true);
            NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopOut"],true);
        } else {
            if (start != -1) {
                if (end != -1) {
                    // Loop In and Out set -> call Reloop/Exit
                    engine.setValue(group, "reloop_exit", 1);
                    NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopIn"],true);
                    NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopOut"],true);
                    NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["reLoop"],true);
                } else {
                    // Loop In set -> call Loop Out
                    engine.setValue(group, "loop_out", 1);
                    NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["loopOut"],true);
                }
            }
        }
    }
}

NumarkMixTrack.reLoop = function(channel, control, value, status, group) {
        var deck = NumarkMixTrack.groupToDeck(group);
    if (value) {
        if(NumarkMixTrack.manualLooping[deck-1]) {
                // Multiply Loop by Two
                var start = engine.getValue(group, "loop_start_position");
                var end = engine.getValue(group, "loop_end_position");
                if((start != -1) && (end != -1)) {
                    var len = (end - start) * 2;
                    engine.setValue(group, "loop_end_position", start + len);
                }
        } else {
            if (engine.getValue(group, "loop_enabled")) {
                NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["reLoop"],false);
            } else {
                var start = engine.getValue(group, "loop_start_position");
                var end = engine.getValue(group, "loop_end_position");
                if( (start != -1) && (end != -1)) {
                    // Loop is set ! Light the led
                    NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["reLoop"],true);
                }
            }
            engine.setValue(group, "reloop_exit", 1);
        }
    }
}

NumarkMixTrack.jogWheel = function(channel, control, value, status, group) {
    var deck = NumarkMixTrack.groupToDeck(group);
    var adjustedJog = parseFloat(value);
    var posNeg = 1;
    if (adjustedJog > 63) {    // Counter-clockwise
        posNeg = -1;
        adjustedJog = value - 128;
    }


    if (NumarkMixTrack.scratching[deck-1]) {
        engine.scratchTick(deck, adjustedJog);
    }

    else
    {
        var gammaInputRange = 23;    // Max jog speed
        var maxOutFraction = 0.5;    // Where on the curve it should peak; 0.5 is half-way
        var sensitivity = 0.5;        // Adjustment gamma
        var gammaOutputRange = 3;    // Max rate change
        if (engine.getValue(group,"play")) {
            adjustedJog = posNeg * gammaOutputRange * Math.pow(Math.abs(adjustedJog) / (gammaInputRange * maxOutFraction), sensitivity);
        } else {
            adjustedJog = gammaOutputRange * adjustedJog / (gammaInputRange * maxOutFraction);
        }
        engine.setValue(group, "jog", adjustedJog);
    }
}


NumarkMixTrack.toggleDirectoryMode = function(channel, control, value, status, group) {
    // Toggle setting and light
    if (value) {
        if (NumarkMixTrack.directoryMode) {
            NumarkMixTrack.directoryMode = false;
        } else {
            NumarkMixTrack.directoryMode = true;
        }
        NumarkMixTrack.setLED(NumarkMixTrack.leds[0]["directory"], NumarkMixTrack.directoryMode);
        NumarkMixTrack.setLED(NumarkMixTrack.leds[0]["file"], !NumarkMixTrack.directoryMode);
    }
}

NumarkMixTrack.toggleScratchMode = function(channel, control, value, status, group) {
    var deck = NumarkMixTrack.groupToDeck(group);
    // Toggle setting and light
    if (value) {
        if (NumarkMixTrack.scratchMode[deck-1]) {
            NumarkMixTrack.scratchMode[deck-1] = false;
        } else {
            NumarkMixTrack.scratchMode[deck-1] = true;
        }
        NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["scratchMode"], NumarkMixTrack.scratchMode[deck-1]);
    }
}

NumarkMixTrack.WheelTouch = function (channel, control, value, status, group) {
    var deck = NumarkMixTrack.groupToDeck(group);
    if (NumarkMixTrack.scratchMode[deck-1]) {
        if (value) {    // Wheel touched
            engine.scratchEnable(deck, 512, 33+1/3, 0.2, (0.2)/32);
            NumarkMixTrack.scratching[deck-1] = true;
        }
        else {    // Wheel left
            engine.scratchDisable(deck);
            NumarkMixTrack.scratching[deck-1] = false;
        }
    }
}

NumarkMixTrack.toggleManualLooping = function(channel, control, value, status, group) {
    var deck = NumarkMixTrack.groupToDeck(group);
    // Toggle setting and light
    if (value) {
        if (NumarkMixTrack.manualLooping[deck-1]) {
            NumarkMixTrack.manualLooping[deck-1] = false;
        } else {
            NumarkMixTrack.manualLooping[deck-1] = true;
        }
        NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["manualLoop"], NumarkMixTrack.manualLooping[deck-1]);
    }
}


NumarkMixTrack.ToggleKeylock = function(channel, control, value, status, group) {
    var deck = NumarkMixTrack.groupToDeck(group);
    // Toggle setting and light
    if (value) {
        if (NumarkMixTrack.KeyIsLocked[deck-1]) {
            engine.setValue(group, "keylock", 0);
            NumarkMixTrack.KeyIsLocked[deck-1] = false;
        } else {
            engine.setValue(group, "keylock", 1);
            NumarkMixTrack.KeyIsLocked[deck-1] = true;
        }
        NumarkMixTrack.setLED(NumarkMixTrack.leds[deck]["keylock"], NumarkMixTrack.KeyIsLocked[deck-1]);
    }
}

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