1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/*
File: fm.h -- header file for software emuration for FM sound genelator
*/
#ifndef _H_FM_FM_
#define _H_FM_FM_
////// starshine - one chip 4 me!
#define HAS_YM2612 1
#define BUILD_YM2612 (HAS_YM2612) // build YM2612 emulator
#define BUILD_YM2203 (HAS_YM2203) /* build YM2203(OPN) emulator */
#define BUILD_YM2608 (HAS_YM2608) /* build YM2608(OPNA) emulator */
#define BUILD_YM2610 (HAS_YM2610) /* build YM2610(OPNB) emulator */
#define BUILD_YM2610B (HAS_YM2610B) /* build YM2610B(OPNB?)emulator */
#define BUILD_YM2151 (HAS_YM2151) /* build YM2151(OPM) emulator */
/* stereo mixing / separate */
//#define FM_STEREO_MIX
/* output bit size 8 or 16 */
#define FM_OUTPUT_BIT 16
#define YM2203_NUMBUF 1
#ifdef FM_STEREO_MIX
#define YM2151_NUMBUF 1
#define YM2608_NUMBUF 1
#define YM2612_NUMBUF 1
#define YM2610_NUMBUF 1
#else
#define YM2151_NUMBUF 2 /* FM L+R */
#define YM2608_NUMBUF 2 /* FM L+R+ADPCM+RYTHM */
#define YM2612_NUMBUF 2 /* FM L+R */
#define YM2610_NUMBUF 2
#endif
#if (FM_OUTPUT_BIT==16)
typedef unsigned short FMSAMPLE;
typedef unsigned long FMSAMPLE_MIX;
#endif
#if (FM_OUTPUT_BIT==8)
typedef unsigned char FMSAMPLE;
typedef unsigned short FMSAMPLE_MIX;
#endif
/* For YM2151/YM2608/YM2612 option */
typedef void (*FM_TIMERHANDLER)(int n,int c,int cnt,double stepTime);
typedef void (*FM_IRQHANDLER)(int n,int irq);
/* FM_TIMERHANDLER : Stop or Start timer */
/* int n = chip number */
/* int c = Channel 0=TimerA,1=TimerB */
/* int count = timer count (0=stop) */
/* doube stepTime = step time of one count (sec.)*/
/* FM_IRQHHANDLER : IRQ level changing sense */
/* int n = chip number */
/* int irq = IRQ level 0=OFF,1=ON */
#ifdef BUILD_OPN
/* -------------------- YM2203/YM2608 Interface -------------------- */
/*
** 'n' : YM2203 chip number 'n'
** 'r' : register
** 'v' : value
*/
//void OPNWriteReg(int n, int r, int v);
/*
** read status YM2203 chip number 'n'
*/
unsigned char OPNReadStatus(int n);
#endif /* BUILD_OPN */
#if BUILD_YM2203
/* -------------------- YM2203(OPN) Interface -------------------- */
/*
** Initialize YM2203 emulator(s).
**
** 'num' is the number of virtual YM2203's to allocate
** 'rate' is sampling rate
** return 0 = success
*/
int YM2203Init(int num, int baseclock, int rate,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
/*
** shutdown the YM2203 emulators .. make sure that no sound system stuff
** is touching our audio buffers ...
*/
void YM2203Shutdown(void);
/*
** reset all chip registers for YM2203 number 'num'
*/
void YM2203ResetChip(int num);
void YM2203UpdateOne(int num, void *buffer, int length);
/*
** return : InterruptLevel
*/
int YM2203Write(int n,int a,int v);
unsigned char YM2203Read(int n,int a);
/*
** Timer OverFlow
*/
int YM2203TimerOver(int n, int c);
/*int YM2203SetBuffer(int n, FMSAMPLE *buf );*/
#endif /* BUILD_YM2203 */
#if BUILD_YM2612
int YM2612Init(int num, int baseclock, int rate,
FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
void YM2612Shutdown(void);
void YM2612ResetChip(int num);
void YM2612UpdateOne(int num, void **buffer, int length);
int YM2612Write(int n, int a,int v);
unsigned char YM2612Read(int n,int a);
int YM2612TimerOver(int n, int c );
FMSAMPLE *YM2612Buffer(int n);
/*int YM2612SetBuffer(int n, FMSAMPLE **buf );*/
#endif /* BUILD_YM2612 */
#endif /* _H_FM_FM_ */
|
