1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Ben Parnell
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 #define OVERSAMPLESHIFT 4
22 #define OVERSAMPLE *16
23 #define SND_BUFSIZE 256
27 void (*Fill)(int Count);
28 void (*RChange)(void);
32 extern EXPSOUND GameExpSound;
34 extern int64 nesincsizeLL;
36 extern uint32 PSG_base;
37 extern int32 PCMIRQCount;
39 void SetSoundVariables(void);
40 void PowerSound(void);
41 void ResetSound(void);
42 extern uint8 decvolume[];
50 extern uint8 PCMBitIndex;
51 extern uint32 PCMAddressIndex;
52 extern int32 PCMSizeIndex;
53 extern uint8 PCMBuffer;
55 extern uint8 sweepon[2];
56 extern int32 curfreq[2];
58 extern uint8 SweepCount[2];
59 extern uint8 DecCountTo1[3];
65 void GetSoundBuffer(int32 **W);
66 int FlushEmulateSound(void);
67 extern uint32 Wave[2048];
68 extern int32 WaveFinal[2048];
69 extern int16 WaveFinalMono[2048];
70 extern uint32 soundtsinc;
72 extern uint32 soundtsoffs;
73 #define SOUNDTS (timestamp + soundtsoffs)
75 void SetNESSoundMap(void);
76 void FrameSoundUpdate(void);
77 void FixOldSaveStateSFreq(void);