summaryrefslogblamecommitdiffstatshomepage
path: root/src/devices/sound/volt_reg.h
blob: f687b3a7713695e343fa73f7e8b38f4bd5155591 (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
















                                                                            
                                                                          



                                                                               
                                                                                        



















                                                                                                                                          
// 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<voltage_regulator_device &>(*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