// license:GPL-2.0+ // copyright-holders:Juergen Buchmueller, Frank Palazzolo, Sean Riddle /***************************************************************************** * * audio/channelf.h * ****************************************************************************/ #ifndef MAME_AUDIO_CHANNELF_H #define MAME_AUDIO_CHANNELF_H class channelf_sound_device : public device_t, public device_sound_interface { public: channelf_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); void sound_w(int mode); protected: // device-level overrides virtual void device_start() override; // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; private: // internal state sound_stream *m_channel; int m_sound_mode; int m_incr; float m_decay_mult; int m_envelope; uint32_t m_sample_counter; int m_forced_ontime; // added for improved sound int m_min_ontime; // added for improved sound }; DECLARE_DEVICE_TYPE(CHANNELF_SOUND, channelf_sound_device) #endif // MAME_AUDIO_CHANNELF_H