Wave.h

/*
 * Wave.h
 *
 * (c) 2015 Sofian Audry        :: info(@)sofianaudry(.)com
 * (c) 2015 Thomas O Fredericks :: tof(@)t-o-f(.)info
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef WAVE_H_
#define WAVE_H_
 
#include "AbstractWave.h"
 
namespace pq
{
 
enum WaveShape {
  SQUARE,
  TRIANGLE,
  SINE,
  N_SHAPES
};

class Wave : public AbstractWave
{
public:
    Wave(float period, Engine &engine = Engine::primary());

    explicit Wave(WaveShape shape, Engine &engine = Engine::primary());

    Wave(float period, float skew, Engine &engine = Engine::primary());

    Wave(WaveShape shape, float period, Engine &engine = Engine::primary());

    Wave(WaveShape shape, float period, float skew, Engine &engine = Engine::primary());
 
    virtual ~Wave() {}

    void shape(WaveShape shape);

    WaveShape shape() const { return _shape; }
 
protected:
    // Returns value in [0, 1].
    //  virtual float _get(q0_32u_t t);
    virtual q0_32u_t _getFixed32(q0_32u_t t) const;
 
private:
    WaveShape _shape;
};
 
}
 
#endif