Olivier Smeesters / SoundWaveGenerator

Classes to produce a computed sound wave on the analog output.

Dependents:   SoundWaveGeneratorTest SoundWaveGeneratorTest

snd_wave_generator/WaveCombo.h@1:6864fd480178, 2011-02-08 (annotated)

Committer:
osmeest
Date:
Tue Feb 08 21:39:55 2011 +0000
Revision:
1:6864fd480178
Parent:
0:ed89ef772e92 
Fix the Sine & Triangle wave computations which were very bad !

Who changed what in which revision?

UserRevisionLine numberNew contents of line
osmeest 0:ed89ef772e92 1 #ifndef WAVE_COMBO_H_
osmeest 0:ed89ef772e92 2 #define WAVE_COMBO_H_
osmeest 0:ed89ef772e92 3
osmeest 0:ed89ef772e92 4 #include "snd_wave_generator/Wave.h"
osmeest 0:ed89ef772e92 5 #include <vector>
osmeest 0:ed89ef772e92 6
osmeest 0:ed89ef772e92 7 namespace snd_wave_generator {
osmeest 0:ed89ef772e92 8
osmeest 0:ed89ef772e92 9 /**
osmeest 0:ed89ef772e92 10 * @brief A class that produces a wave that results of the combination of multiple waves.
osmeest 0:ed89ef772e92 11 * The combined wave does not buffer itself (as it does not know the length of the combined cycle.
osmeest 0:ed89ef772e92 12 * During preparation phase, it invokes the prepare() method of its contained waves.
osmeest 0:ed89ef772e92 13 */
osmeest 0:ed89ef772e92 14 class WaveCombo : public Wave {
osmeest 0:ed89ef772e92 15 public:
osmeest 0:ed89ef772e92 16 WaveCombo(Wave *wave = NULL) : waves(), numWaves(0)
osmeest 0:ed89ef772e92 17 {
osmeest 0:ed89ef772e92 18 add(wave);
osmeest 0:ed89ef772e92 19 }
osmeest 0:ed89ef772e92 20
osmeest 0:ed89ef772e92 21 WaveCombo & add(Wave *wave);
osmeest 0:ed89ef772e92 22
osmeest 0:ed89ef772e92 23 virtual void prepare(std::size_t sampleRate);
osmeest 0:ed89ef772e92 24 virtual float read(std::size_t pos) const;
osmeest 0:ed89ef772e92 25
osmeest 0:ed89ef772e92 26 private:
osmeest 0:ed89ef772e92 27 std::vector<Wave*> waves;
osmeest 0:ed89ef772e92 28 float numWaves;
osmeest 0:ed89ef772e92 29 };
osmeest 0:ed89ef772e92 30
osmeest 0:ed89ef772e92 31 } // snd_wave_generator
osmeest 0:ed89ef772e92 32
osmeest 0:ed89ef772e92 33 #endif // WAVE_COMBO_H_