| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 2002 Ben Parnell |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | */ |
| 20 | |
| 21 | #define OVERSAMPLESHIFT 4 |
| 22 | #define OVERSAMPLE *16 |
| 23 | #define SND_BUFSIZE 256 |
| 24 | |
| 25 | |
| 26 | typedef struct { |
| 27 | void (*Fill)(int Count); |
| 28 | void (*RChange)(void); |
| 29 | void (*Kill)(void); |
| 30 | |
| 31 | // from 0.98.15, currently unused |
| 32 | void (*NeoFill)(int32 *Wave, int Count); |
| 33 | void (*HiFill)(void); |
| 34 | void (*HiSync)(int32 ts); |
| 35 | } EXPSOUND; |
| 36 | |
| 37 | extern EXPSOUND GameExpSound; |
| 38 | |
| 39 | //extern int64 nesincsizeLL; |
| 40 | extern int32 nesincsize; |
| 41 | extern uint8 PSG[0x18]; |
| 42 | extern uint32 PSG_base; |
| 43 | |
| 44 | void SetSoundVariables(void); |
| 45 | extern uint8 decvolume[]; |
| 46 | |
| 47 | extern int vdis; |
| 48 | extern uint8 sqnon; |
| 49 | extern uint16 nreg; |
| 50 | |
| 51 | extern uint8 trimode; |
| 52 | extern uint8 tricoop; |
| 53 | |
| 54 | extern uint8 sweepon[2]; |
| 55 | extern int32 curfreq[2]; |
| 56 | |
| 57 | extern uint8 SweepCount[2]; |
| 58 | extern uint8 DecCountTo1[3]; |
| 59 | |
| 60 | extern uint8 fcnt; |
| 61 | extern int32 fhcnt; |
| 62 | extern int32 fhinc; |
| 63 | |
| 64 | uint8 FCEU_GetJoyJoy(void); |
| 65 | |
| 66 | int GetSoundBuffer(int16 **W); |
| 67 | int FlushEmulateSound(void); |
| 68 | extern uint32 Wave[2048+512]; |
| 69 | extern int16 WaveFinalMono[2048+512]; |
| 70 | extern int32 WaveHi[]; |
| 71 | extern uint32 soundtsinc; |
| 72 | |
| 73 | extern uint32 soundtsoffs; |
| 74 | #define SOUNDTS (timestamp + soundtsoffs) |
| 75 | |
| 76 | void SetNESSoundMap(void); |
| 77 | void FrameSoundUpdate(void); |
| 78 | void FixOldSaveStateSFreq(void); |
| 79 | |
| 80 | void FCEUSND_Power(void); |
| 81 | void FCEUSND_Reset(void); |
| 82 | void FCEUSND_SaveState(void); |
| 83 | void FCEUSND_LoadState(int version); |
| 84 | |
| 85 | void FCEU_SoundCPUHook(int cycles48); |
| 86 | DECLFW(Write_IRQFM); |