// license:BSD-3-Clause // copyright-holders:Allard van der Bas #ifndef MAME_AUDIO_WIPING_H #define MAME_AUDIO_WIPING_H #pragma once class wiping_sound_device : public device_t, public device_sound_interface { public: wiping_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void sound_w(offs_t offset, uint8_t data); protected: // device-level overrides virtual void device_start() override; // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, std::vector const &inputs, std::vector &outputs) override; private: // 8 voices max static constexpr unsigned MAX_VOICES = 8; // this structure defines the parameters for a channel struct wp_sound_channel { int frequency; int counter; int volume; const uint8_t *wave; int oneshot; int oneshotplaying; }; // internal state // data about the sound system wp_sound_channel m_channel_list[MAX_VOICES]; wp_sound_channel *m_last_channel; // global sound parameters required_region_ptr m_sound_prom; required_region_ptr m_sound_rom; int m_num_voices; int m_sound_enable; sound_stream *m_stream; // mixer tables and internal buffers std::vector m_mixer_buffer; uint8_t m_soundregs[0x4000]; void make_mixer_table(int voices, int gain); }; DECLARE_DEVICE_TYPE(WIPING_CUSTOM, wiping_sound_device) #endif // MAME_AUDIO_WIPING_H