furnace/src/engine/platform/sms.h
tildearrow d6fb6b0bb3 more optimization
as of now non-stereo sound chips are only processed once
2021-12-06 16:51:18 -05:00

41 lines
880 B
C++

#ifndef _SMS_H
#define _SMS_H
#include "../dispatch.h"
#include "../macroInt.h"
#include "sound/sn76496.h"
class DivPlatformSMS: public DivDispatch {
struct Channel {
int freq, baseFreq, pitch;
unsigned char ins, note;
bool active, insChanged, freqChanged, keyOn, keyOff;
signed char vol, outVol;
DivMacroInt std;
Channel():
freq(0),
baseFreq(0),
pitch(0),
ins(-1),
note(0),
active(false),
insChanged(true),
freqChanged(false),
keyOn(false),
keyOff(false),
vol(15) {}
};
Channel chan[4];
unsigned char snNoiseMode;
bool updateSNMode;
sn76496_device* sn;
public:
int acquireOne();
void acquire(short* bufL, short* bufR, size_t start, size_t len);
int dispatch(DivCommand c);
void tick();
int init(DivEngine* parent, int channels, int sugRate);
};
#endif