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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
#ifndef MAME_SOUND_BBD_H
#define MAME_SOUND_BBD_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> bbd_device_base
template<int Entries, int Outputs>
class bbd_device_base : public device_t, public device_sound_interface
{
public:
// configuration
template <typename... T> void set_cv_handler(T &&... args)
{
m_cv_handler.set(std::forward<T>(args)...);
}
protected:
using cv_delegate = device_delegate<attoseconds_t (attotime const &)>;
// internal constructor
bbd_device_base(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, device_type type);
// device-level overrides
virtual void device_start() override;
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;
protected:
// override to convert clock to sample rate
stream_buffer::sample_t outputval(s32 index) const { return m_buffer[m_curpos + Entries + index]; }
virtual u32 sample_rate() const { return clock(); }
sound_stream * m_stream;
u32 m_curpos;
cv_delegate m_cv_handler;
attotime m_next_bbdtime;
stream_buffer::sample_t m_buffer[Entries + 1];
};
// ======================> mn3004_device
class mn3004_device : public bbd_device_base<512, 2>
{
public:
mn3004_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
DECLARE_DEVICE_TYPE(MN3004, mn3004_device)
// ======================> mn3005_device
class mn3005_device : public bbd_device_base<4096, 2>
{
public:
mn3005_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
DECLARE_DEVICE_TYPE(MN3005, mn3005_device)
// ======================> mn3006_device
class mn3006_device : public bbd_device_base<128, 2>
{
public:
mn3006_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
DECLARE_DEVICE_TYPE(MN3006, mn3006_device)
// ======================> mn3204p_device
class mn3204p_device : public bbd_device_base<512, 2>
{
public:
mn3204p_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
};
DECLARE_DEVICE_TYPE(MN3204P, mn3204p_device)
#endif // MAME_SOUND_BBD_H
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