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// license:BSD-3-Clause
// copyright-holders:Derrick Renaud, Couriersud
#ifndef MAME_SOUND_FLT_VOL_H
#define MAME_SOUND_FLT_VOL_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> filter_volume_device
class filter_volume_device : public device_t, public device_sound_interface
{
public:
filter_volume_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
filter_volume_device &set_gain(float gain); // also may be used in mcfg to set initial value (default is 1.0)
float gain() { return m_gain; }
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream) override;
private:
sound_stream* m_stream;
float m_gain;
};
DECLARE_DEVICE_TYPE(FILTER_VOLUME, filter_volume_device)
#endif // MAME_SOUND_FLT_VOL_H
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