// license:BSD-3-Clause // copyright-holders:Kevin Thacker #pragma once #ifndef __BEEP_H__ #define __BEEP_H__ //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> beep_device class beep_device : public device_t, public device_sound_interface { public: beep_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); ~beep_device() { } protected: // device-level overrides virtual void device_start(); // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); public: void set_state(int on); void set_frequency(int frequency); void set_volume(int volume); private: sound_stream *m_stream; /* stream number */ int m_enable; /* enable beep */ int m_frequency; /* set frequency - this can be changed using the appropiate function */ int m_incr; /* initial wave state */ INT16 m_signal; /* current signal */ }; extern const device_type BEEP; #endif /* __BEEP_H__ */