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1.1 root 1: /*
2: File: fm.h -- header file for software emuration for FM sound genelator
3:
4: */
5: #ifndef _H_FM_FM_
6: #define _H_FM_FM_
7:
8: /* #define BUILD_YM2203 (HAS_YM2203) */ /* build YM2203(OPN) emulator */
9: /* #define BUILD_YM2608 (HAS_YM2608) */ /* build YM2608(OPNA) emulator */
10: /* #define BUILD_YM2610 (HAS_YM2610) */ /* build YM2610(OPNB) emulator */
11: /* #define BUILD_YM2610B (HAS_YM2610B) */ /* build YM2610B(OPNB?)emulator */
12: #define BUILD_YM2612 (HAS_YM2612) /* build YM2612(OPN2) emulator */
13: /* #define BUILD_YM2151 (HAS_YM2151) */ /* build YM2151(OPM) emulator */
14:
15: /* stereo mixing / separate */
16: /*#define FM_STEREO_MIX */
17: /* output bit size 8 or 16 */
18: #define FM_OUTPUT_BIT 16
19:
20: #define YM2203_NUMBUF 1
21:
22: #ifdef FM_STEREO_MIX
23: #define YM2151_NUMBUF 1
24: #define YM2608_NUMBUF 1
25: #define YM2612_NUMBUF 1
26: #define YM2610_NUMBUF 1
27: #else
28: #define YM2151_NUMBUF 2 /* FM L+R */
29: #define YM2608_NUMBUF 2 /* FM L+R+ADPCM+RYTHM */
30: #define YM2612_NUMBUF 2 /* FM L+R */
31: #define YM2610_NUMBUF 2
32: #endif
33:
34: #if (FM_OUTPUT_BIT==16)
35: typedef unsigned short FMSAMPLE;
36: typedef unsigned long FMSAMPLE_MIX;
37: #endif
38: #if (FM_OUTPUT_BIT==8)
39: typedef unsigned char FMSAMPLE;
40: typedef unsigned short FMSAMPLE_MIX;
41: #endif
42:
43: /* For YM2151/YM2608/YM2612 option */
44:
45: typedef void (*FM_TIMERHANDLER)(int n,int c,int cnt,double stepTime);
46: typedef void (*FM_IRQHANDLER)(int n,int irq);
47: /* FM_TIMERHANDLER : Stop or Start timer */
48: /* int n = chip number */
49: /* int c = Channel 0=TimerA,1=TimerB */
50: /* int count = timer count (0=stop) */
51: /* doube stepTime = step time of one count (sec.)*/
52:
53: /* FM_IRQHHANDLER : IRQ level changing sense */
54: /* int n = chip number */
55: /* int irq = IRQ level 0=OFF,1=ON */
56:
57: #ifdef BUILD_OPN
58: /* -------------------- YM2203/YM2608 Interface -------------------- */
59: /*
60: ** 'n' : YM2203 chip number 'n'
61: ** 'r' : register
62: ** 'v' : value
63: */
64: /*void OPNWriteReg(int n, int r, int v); */
65:
66: /*
67: ** read status YM2203 chip number 'n'
68: */
69: unsigned char OPNReadStatus(int n);
70:
71: #endif /* BUILD_OPN */
72:
73: #if BUILD_YM2203
74: /* -------------------- YM2203(OPN) Interface -------------------- */
75:
76: /*
77: ** Initialize YM2203 emulator(s).
78: **
79: ** 'num' is the number of virtual YM2203's to allocate
80: ** 'rate' is sampling rate
81: ** return 0 = success
82: */
83: int YM2203Init(int num, int baseclock, int rate,
84: FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
85:
86: /*
87: ** shutdown the YM2203 emulators .. make sure that no sound system stuff
88: ** is touching our audio buffers ...
89: */
90: void YM2203Shutdown(void);
91:
92: /*
93: ** reset all chip registers for YM2203 number 'num'
94: */
95: void YM2203ResetChip(int num);
96:
97: void YM2203UpdateOne(int num, void *buffer, int length);
98:
99: /*
100: ** return : InterruptLevel
101: */
102: int YM2203Write(int n,int a,int v);
103: unsigned char YM2203Read(int n,int a);
104:
105: /*
106: ** Timer OverFlow
107: */
108: int YM2203TimerOver(int n, int c);
109:
110: /*int YM2203SetBuffer(int n, FMSAMPLE *buf );*/
111:
112: #endif /* BUILD_YM2203 */
113:
114: #if BUILD_YM2608
115: /* -------------------- YM2608(OPNA) Interface -------------------- */
116:
117: int YM2608Init(int num, int baseclock, int rate,
118: void **pcmroma,int *pcmsizea,short *rhythmrom,int *rhythmpos,
119: FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
120: void YM2608Shutdown(void);
121: void YM2608ResetChip(int num);
122: void YM2608UpdateOne(int num, void **buffer, int length);
123:
124: int YM2608Write(int n, int a,int v);
125: unsigned char YM2608Read(int n,int a);
126: int YM2608TimerOver(int n, int c );
127: /*int YM2608SetBuffer(int n, FMSAMPLE **buf );*/
128: #endif /* BUILD_YM2608 */
129:
130: #if BUILD_YM2610
131: /* -------------------- YM2610(OPNB) Interface -------------------- */
132:
133: #define MAX_2610 (2)
134:
135: int YM2610Init(int num, int baseclock, int rate,
136: void **pcmroma,int *pcmasize,void **pcmromb,int *pcmbsize,
137: FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
138: void YM2610Shutdown(void);
139: void YM2610ResetChip(int num);
140: void YM2610UpdateOne(int num, void **buffer, int length);
141: #if BUILD_YM2610B
142: void YM2610BUpdateOne(int num, void **buffer, int length);
143: #endif
144:
145: int YM2610Write(int n, int a,int v);
146: unsigned char YM2610Read(int n,int a);
147: int YM2610TimerOver(int n, int c );
148: /*int YM2610SetBuffer(int n, FMSAMPLE **buf );*/
149:
150: #ifdef __RAINE__
151: void Set_YM2610_ADPCM_Buffers(int num, UBYTE *bufa, UBYTE *bufb, ULONG sizea, ULONG sizeb);
152: #endif
153: #endif /* BUILD_YM2610 */
154:
155: #if BUILD_YM2612
156: int YM2612Init(int num, int baseclock, int rate,
157: FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
158: void YM2612Shutdown(void);
159: void YM2612ResetChip(int num);
160: void YM2612UpdateOne(int num, void **buffer, int length);
161: int YM2612Write(int n, int a,int v);
162: unsigned char YM2612Read(int n,int a);
163: int YM2612TimerOver(int n, int c );
164: FMSAMPLE *YM2612Buffer(int n);
165: /*int YM2612SetBuffer(int n, FMSAMPLE **buf );*/
166:
167: #endif /* BUILD_YM2612 */
168:
169: #if BUILD_YM2151
170: /* -------------------- YM2151(OPM) Interface -------------------- */
171: /*
172: ** Initialize YM2151 emulator(s).
173: **
174: ** 'num' is the number of virtual YM2151's to allocate
175: ** 'rate' is sampling rate
176: ** 'bitsize' is sampling bits (8 or 16)
177: ** 'bufsiz' is the size of the buffer
178: */
179: int OPMInit(int num, int baseclock, int rate,
180: FM_TIMERHANDLER TimerHandler,FM_IRQHANDLER IRQHandler);
181: void OPMShutdown(void);
182: void OPMResetChip(int num);
183:
184: void OPMUpdateOne(int num, void **buffer, int length );
185: void OPMWriteReg(int n, int r, int v);
186: unsigned char OPMReadStatus(int n );
187: /* ----- get pointer sound buffer ----- */
188: FMSAMPLE *OPMBuffer(int n,int c );
189: /* ----- set sound buffer ----- */
190: /*int OPMSetBuffer(int n, FMSAMPLE **buf );*/
191: /* ---- set user interrupt handler ----- */
192: void OPMSetIrqHandler(int n, void (*handler)(void) );
193: /* ---- set callback hander when port CT0/1 write ----- */
194: /* CT.bit0 = CT0 , CT.bit1 = CT1 */
195: void OPMSetPortHander(int n,void (*PortWrite)(int offset,int CT) );
196: /* JB 981119 - so it will match MAME's memory write functions scheme*/
197:
198: int YM2151Write(int n,int a,int v);
199: unsigned char YM2151Read(int n,int a);
200: int YM2151TimerOver(int n,int c);
201: #endif /* BUILD_YM2151 */
202:
203: #endif /* _H_FM_FM_ */
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