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// license:BSD-3-Clause
// copyright-holders:cam900
#ifndef MAME_SOUND_HUC6230_H
#define MAME_SOUND_HUC6230_H
#pragma once
#include "sound/okiadpcm.h"
#include "sound/c6280.h"
class huc6230_device : public device_t, public device_sound_interface
{
public:
static constexpr feature_type imperfect_features() { return feature::SOUND; } // Incorrect ADPCM
huc6230_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <unsigned N> auto adpcm_update_cb() { return m_adpcm_update_cb[N].bind(); }
auto vca_callback() { return m_vca_cb.bind(); }
// write only
void write(offs_t offset, uint8_t data);
protected:
// device-level overrides
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual void device_start() override ATTR_COLD;
virtual void device_clock_changed() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
private:
struct adpcm_channel {
oki_adpcm_state m_adpcm;
uint8_t m_lvol;
uint8_t m_rvol;
uint8_t m_interpolate;
uint8_t m_playing;
int32_t m_prev_sample;
int32_t m_curr_sample;
int32_t m_output;
uint32_t m_pos;
uint8_t m_input;
};
// internal state
sound_stream *m_stream;
emu_timer *m_adpcm_timer;
required_device<c6280_device> m_psg;
adpcm_channel m_adpcm_channel[2];
uint32_t m_adpcm_freq;
uint32_t m_pcm_lvol;
uint32_t m_pcm_rvol;
TIMER_CALLBACK_MEMBER(adpcm_timer);
devcb_read8::array<2> m_adpcm_update_cb;
devcb_write8 m_vca_cb;
};
DECLARE_DEVICE_TYPE(HuC6230, huc6230_device)
#endif // MAME_SOUND_HUC6230_H
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