// license:BSD-3-Clause // copyright-holders:smf /*************************************************************************** volt_reg.h Voltage Regulator ***************************************************************************/ #ifndef MAME_SOUND_VOLT_REG_H #define MAME_SOUND_VOLT_REG_H #pragma once #define MCFG_VOLTAGE_REGULATOR_OUTPUT(_output) \ downcast(*device).set_output(_output); class voltage_regulator_device : public device_t, public device_sound_interface { public: void set_output(double analogue_dc) { m_output = (analogue_dc * 32768) / 5.0f; } voltage_regulator_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual bool issound() override { return false; } protected: // device-level overrides virtual void device_start() override; // sound stream update overrides virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; private: sound_stream* m_stream; stream_sample_t m_output; }; DECLARE_DEVICE_TYPE(VOLTAGE_REGULATOR, voltage_regulator_device) #endif // MAME_SOUND_VOLT_REG_H