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-rw-r--r--src/devices/sound/bbd.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/src/devices/sound/bbd.h b/src/devices/sound/bbd.h
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+++ b/src/devices/sound/bbd.h
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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
+{
+protected:
+ // internal constructor
+ bbd_device_base(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, device_type type);
+
+ // override to convert clock to sample rate
+ virtual u32 sample_rate() const { return clock(); }
+
+ // 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:
+ sound_stream * m_stream;
+ u32 m_curpos;
+ stream_buffer::sample_t m_buffer[Entries];
+};
+
+
+// ======================> 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