#pragma once
#ifndef __CEM3394_H__
#define __CEM3394_H__
#include "devlegcy.h"
#define CEM3394_SAMPLE_RATE (44100*4)
/* interface */
struct cem3394_interface
{
double vco_zero_freq; /* frequency at 0V for VCO */
double filter_zero_freq; /* frequency at 0V for filter */
void (*external)(device_t *, int, short *);/* external input source */
};
/* inputs */
enum
{
CEM3394_VCO_FREQUENCY = 0,
CEM3394_MODULATION_AMOUNT,
CEM3394_WAVE_SELECT,
CEM3394_PULSE_WIDTH,
CEM3394_MIXER_BALANCE,
CEM3394_FILTER_RESONANCE,
CEM3394_FILTER_FREQENCY,
CEM3394_FINAL_GAIN
};
/* set the voltage going to a particular parameter */
void cem3394_set_voltage(device_t *device, int input, double voltage);
/* get the translated parameter associated with the given input as follows:
CEM3394_VCO_FREQUENCY: frequency in Hz
CEM3394_MODULATION_AMOUNT: scale factor, 0.0 to 2.0
CEM3394_WAVE_SELECT: voltage from this line
CEM3394_PULSE_WIDTH: width fraction, from 0.0 to 1.0
CEM3394_MIXER_BALANCE: balance, from -1.0 to 1.0
CEM3394_FILTER_RESONANCE: resonance, from 0.0 to 1.0
CEM3394_FILTER_FREQENCY: frequency, in Hz
CEM3394_FINAL_GAIN: gain, in dB */
double cem3394_get_parameter(device_t *device, int input);
class cem3394_device : public device_t,
public device_sound_interface
{
public:
cem3394_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~cem3394_device() { global_free(m_token); }
// access to legacy token
void *token() const { assert(m_token != NULL); return m_token; }
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private:
// internal state
void *m_token;
};
extern const device_type CEM3394;
#endif /* __CEM3394_H__ */