Linear2D.cpp

Go to the documentation of this file.

/** @file
 *
 * @ingroup dspTrajectoryLib
 *
 * @brief Linear Function Unit in 2D for Jamoma DSP
 *
 * @details a simple linear function in two dimensions @n
 * 
 * @authors Nils Peters
 *
 * @copyright Copyright © 2011 by Nils Peters @n
 * This code is licensed under the terms of the "New BSD License" @n
 * http://creativecommons.org/licenses/BSD/
 */


#include "Linear2D.h"


#define thisTTClass         Linear2D
#define thisTTClassName     "linear.2D"
#define thisTTClassTags     "audio, trajectory, 2D"


TT_AUDIO_CONSTRUCTOR
{   addAttribute(A,             kTypeFloat64);
    setProcessMethod(processAudio);
//  setCalculateMethod(calculateValue);
}


Linear2D::~Linear2D()
{
    ;
}

TTErr Linear2D::processAudio(TTAudioSignalArrayPtr inputs, TTAudioSignalArrayPtr outputs)
{
    TTAudioSignal&      out = outputs->getSignal(0);
    TTChannelCount      numOutputChannels = out.getNumChannelsAsInt();
    
    if (numOutputChannels != 2) {
        TTValue v = 2;      
        out.setMaxNumChannels(v);
        out.setNumChannels(v);      
    }
        
    TTAudioSignal&      in0 = inputs->getSignal(0);
    TTUInt16             vs = in0.getVectorSizeAsInt();
    
    TTSampleValuePtr    inSampleX           = in0.mSampleVectors[0];
    TTSampleValuePtr    outSampleX          = out.mSampleVectors[0];
    TTSampleValuePtr    outSampleY          = out.mSampleVectors[1];

    for (int i=0; i<vs; i++) {  
        outSampleX[i] = inSampleX[i]-1.0; //Phasor runs from 0 .. 2
        outSampleY[i] = mA * outSampleX[i];
    }
    return kTTErrNone;
}