MDA DITHER

void mdaDither::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
{
    float o = offs, w = wlen, wi = 1.0f / wlen;                     //DC offset, word length & inverse

    float *inarray[NUM_CHANS];
    float temparray[NUM_CHANS];
    float *outarray[NUM_CHANS];

    for (int i = 0; i < NUM_CHANS; i++)
    {
        inarray[i] = inputs[i];
        outarray[i] = outputs[i];

        --inarray[i];
        --outarray[i];
    }

    while(--sampleFrames >= 0)
    {
        for (int i = 0; i < NUM_CHANS; i++)
        {
            temparray[i] = *++inarray[i] + o; //apply offset, somehow this is needed

            if (temparray[i]<0.0f) temparray[i] -= wi; //(VstInt32) truncates towards zero!
            temparray[i] = wi * (float)(VstInt32)(w * temparray[i]); //truncate

            *++outarray[i] = temparray[i] * gain; //apply shift
        }
    }
}