WaveCombo.h

00001 #ifndef WAVE_COMBO_H_
00002 #define WAVE_COMBO_H_
00003 
00004 #include "snd_wave_generator/Wave.h"
00005 #include <vector>
00006 
00007 namespace snd_wave_generator {
00008 
00009 /**
00010  * @brief A class that produces a wave that results of the combination of multiple waves.
00011  * The combined wave does not buffer itself (as it does not know the length of the combined cycle.
00012  * During preparation phase, it invokes the prepare() method of its contained waves.
00013  */
00014 class WaveCombo : public Wave {
00015 public:
00016     WaveCombo(Wave *wave = NULL) : waves(), numWaves(0)
00017     {
00018         add(wave); 
00019     }
00020     
00021     WaveCombo & add(Wave *wave);
00022     
00023     virtual void prepare(std::size_t sampleRate);
00024     virtual float read(std::size_t pos) const;
00025     
00026 private:
00027     std::vector<Wave*> waves;
00028     float numWaves;
00029 };
00030 
00031 } // snd_wave_generator
00032 
00033 #endif // WAVE_COMBO_H_