OWL Patch API changes

StompBox.h

class FloatArray {
private:
  float* data;
  int sz;
public:
 FloatArray(float* d, int s) :
  data(d), sz(s) {}
  int size(){
    return sz;
  }
  float getMinValue();
  float getMaxValue();
  int getMinIndex();
  int getMaxIndex();
  float getPeakValue();
  int getPeakIndex();
  float getDb();
  void reverse();
  void rectify();
  float& operator [](const int index){
    return data[index];
  }
  operator float*() {
    return data;
  }
};

class AudioBuffer {
public:
  virtual ~AudioBuffer();
  virtual FloatArray getSamples(int channel) = 0;
  virtual int getChannels() = 0;
  virtual int getSize() = 0;
  virtual void clear() = 0;
};

struct ComplexNumber {
  float re;
  float im;
};

class ComplexArray {
private:
  ComplexNumber* data;
  int sz;
public:
  ComplexNumber(ComplexNumber* d, int s) :
    data(d), sz(s) {}
  float re(const int i){
    return data[i].re;
  }
  float im(const int i){
    return data[i].im;
  }
  float mag(const int i){
    return sqrtf(data[i].re*data[i].re + data[i].im*data[i].im);
  }
  int size(){
    return sz;
  }
  float getPeakMagnitudeValue();
  int getPeakMagnitudeIndex();
  void getMagnitudeValues(FloatArray& buf);
  ComplexNumber& operator [](const int i){
    return data[i];
  }
  operator ComplexNumber*() {
    return data;
  }
};


class Patch {
public:
  Patch();
  virtual ~Patch();
  void registerParameter(PatchParameterId pid, const char* name, const char* description = "");
  float getParameterValue(PatchParameterId pid);
  bool isButtonPressed(PatchButtonId bid);
  void setButton(PatchButtonId bid, bool pressed);
  int getBlockSize();
  double getSampleRate();
  AudioBuffer* createMemoryBuffer(int channels, int samples);
  FloatArray createFloatArray(int size);
  ComplexArray createComplexArray(int size);
  virtual void processAudio(AudioBuffer& output) = 0;
};