ZXSound.h

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/* *************************************************************************/
#ifndef ZXSOUND
#define ZXSOUND
 
 
namespace zxeco
{
 
/* ****************************************************************************
*
*    Class: Frequency
*
*******************************************************************************/
 
class Frequency
{
 public:
 
    /* ---------------------- Types, consts, etc.  ----------------- */
 
    enum Note:unsigned char {    NOTE_C = 0,    
                                 NOTE_CS,       
                                 NOTE_D,        
                                 NOTE_DS,       
                                 NOTE_E,        
                                 NOTE_F,        
                                 NOTE_FS,       
                                 NOTE_G,        
                                 NOTE_GS,       
                                 NOTE_A,        
                                 NOTE_AS,       
                                 NOTE_B,        
                                 NUMNOTES
                             };
 
    static constexpr unsigned char NUMSEMITONESINOCTAVE = NUMNOTES;
 
 
    static const double FREQNOTES[NUMNOTES];
 
    /* ---------------------- Constructors ------------------------ */
 
    Frequency(double hz);
 
    Frequency(Note n);
 
    /* ---------------------- Methods ------------------------ */
 
    double freqHz(void) const noexcept { return(hz_); }
 
    Frequency operator++(int) noexcept;
 
    Frequency & operator+=(unsigned nos) noexcept;
 
 private:
 
     double hz_;
};
 
 
/* ****************************************************************************
*
*    Class: Beep
*
*******************************************************************************/
 
class Beep
{
 public:
 
    /* ---------------------- Constructors ------------------------ */
 
    Beep(unsigned char clic = 0);
 
    Beep(double dur, Frequency::Note note);
 
    Beep(double dur, double pitch);
 
    Beep(double dur, Frequency freq, double phase=0.0);
 
    /* ---------------------- Methods ------------------------ */
 
    double duration(void) const noexcept { return(dur_); }
 
    Frequency frequency(void) const noexcept { return(freq_); }
 
    double phase(void) const noexcept { return(ph_); }
 
 private:
 
    double dur_;
    Frequency freq_;
    double ph_;
};
 
 
} // end namespace zxeco
 
#endif
 // ZXSound