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/***************************************************************************
externals.h - description
-------------------
begin : Wed May 15 2002
copyright : (C) 2002 by Pete Bernert
email : BlackDove@addcom.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. See also the license.txt file for *
* additional informations. *
* *
***************************************************************************/
//*************************************************************************//
// History of changes:
//
// 2004/04/04 - Pete
// - changed plugin to emulate PS2 spu
//
// 2002/04/04 - Pete
// - increased channel struct for interpolation
//
// 2002/05/15 - Pete
// - generic cleanup for the Peops release
//
//*************************************************************************//
#ifndef PEOPS2_EXTERNALS
#define PEOPS2_EXTERNALS
#include "ao.h"
//#if LSB_FIRST
//static INLINE u16 BFLIP16(u16 x)
//{
// return x;
//}
//#else
//static INLINE u16 BFLIP16(u16 x)
//{
// return( ((x>>8)&0xFF)| ((x&0xFF)<<8) );
//}
//#endif
/////////////////////////////////////////////////////////
// generic defines
/////////////////////////////////////////////////////////
//#define PSE_LT_SPU 4
//#define PSE_SPU_ERR_SUCCESS 0
//#define PSE_SPU_ERR -60
//#define PSE_SPU_ERR_NOTCONFIGURED PSE_SPU_ERR - 1
//#define PSE_SPU_ERR_INIT PSE_SPU_ERR - 2
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
////////////////////////////////////////////////////////////////////////
// spu defines
////////////////////////////////////////////////////////////////////////
// sound buffer sizes
// 400 ms complete sound buffer
#define SOUNDSIZE 76800
// 137 ms test buffer... if less than that is buffered, a new upload will happen
#define TESTSIZE 26304
// num of channels
#define MAXCHAN 48
#define HLFCHAN 24
// ~ 1 ms of data (was 45)
#define NSSIZE 1
//45
///////////////////////////////////////////////////////////
// struct defines
///////////////////////////////////////////////////////////
// ADSR INFOS PER CHANNEL
typedef struct
{
int AttackModeExp;
long AttackTime;
long DecayTime;
long SustainLevel;
int SustainModeExp;
long SustainModeDec;
long SustainTime;
int ReleaseModeExp;
unsigned long ReleaseVal;
long ReleaseTime;
long ReleaseStartTime;
long ReleaseVol;
long lTime;
long lVolume;
} ADSRInfo;
typedef struct
{
int State;
int AttackModeExp;
int AttackRate;
int DecayRate;
int SustainLevel;
int SustainModeExp;
int SustainIncrease;
int SustainRate;
int ReleaseModeExp;
int ReleaseRate;
int EnvelopeVol;
long lVolume;
long lDummy1;
long lDummy2;
} ADSRInfoEx;
///////////////////////////////////////////////////////////
// Tmp Flags
// used for debug channel muting
#define FLAG_MUTE 1
// used for simple interpolation
#define FLAG_IPOL0 2
#define FLAG_IPOL1 4
///////////////////////////////////////////////////////////
// MAIN CHANNEL STRUCT
typedef struct
{
// no mutexes used anymore... don't need them to sync access
//HANDLE hMutex;
int bNew; // start flag
int iSBPos; // mixing stuff
int spos;
int sinc;
int SB[32+32]; // Pete added another 32 dwords in 1.6 ... prevents overflow issues with gaussian/cubic interpolation (thanx xodnizel!), and can be used for even better interpolations, eh? :)
int sval;
unsigned char * pStart; // start ptr into sound mem
unsigned char * pCurr; // current pos in sound mem
unsigned char * pLoop; // loop ptr in sound mem
int iStartAdr;
int iLoopAdr;
int iNextAdr;
int bOn; // is channel active (sample playing?)
int bStop; // is channel stopped (sample _can_ still be playing, ADSR Release phase)
int bEndPoint; // end point reached
int bReverbL; // can we do reverb on this channel? must have ctrl register bit, to get active
int bReverbR;
int bVolumeL; // Volume on/off
int bVolumeR;
int iActFreq; // current psx pitch
int iUsedFreq; // current pc pitch
int iLeftVolume; // left volume
int iLeftVolRaw; // left psx volume value
int bIgnoreLoop; // ignore loop bit, if an external loop address is used
int iMute; // mute mode
int iRightVolume; // right volume
int iRightVolRaw; // right psx volume value
int iRawPitch; // raw pitch (0...3fff)
int iIrqDone; // debug irq done flag
int s_1; // last decoding infos
int s_2;
int bRVBActive; // reverb active flag
int bNoise; // noise active flag
int bFMod; // freq mod (0=off, 1=sound channel, 2=freq channel)
int iOldNoise; // old noise val for this channel
ADSRInfo ADSR; // active ADSR settings
ADSRInfoEx ADSRX; // next ADSR settings (will be moved to active on sample start)
} SPUCHAN;
///////////////////////////////////////////////////////////
typedef struct
{
int StartAddr; // reverb area start addr in samples
int EndAddr; // reverb area end addr in samples
int CurrAddr; // reverb area curr addr in samples
int VolLeft;
int VolRight;
int iLastRVBLeft;
int iLastRVBRight;
int iRVBLeft;
int iRVBRight;
int iCnt;
int FB_SRC_A; // (offset)
int FB_SRC_B; // (offset)
int IIR_ALPHA; // (coef.)
int ACC_COEF_A; // (coef.)
int ACC_COEF_B; // (coef.)
int ACC_COEF_C; // (coef.)
int ACC_COEF_D; // (coef.)
int IIR_COEF; // (coef.)
int FB_ALPHA; // (coef.)
int FB_X; // (coef.)
int IIR_DEST_A0; // (offset)
int IIR_DEST_A1; // (offset)
int ACC_SRC_A0; // (offset)
int ACC_SRC_A1; // (offset)
int ACC_SRC_B0; // (offset)
int ACC_SRC_B1; // (offset)
int IIR_SRC_A0; // (offset)
int IIR_SRC_A1; // (offset)
int IIR_DEST_B0; // (offset)
int IIR_DEST_B1; // (offset)
int ACC_SRC_C0; // (offset)
int ACC_SRC_C1; // (offset)
int ACC_SRC_D0; // (offset)
int ACC_SRC_D1; // (offset)
int IIR_SRC_B1; // (offset)
int IIR_SRC_B0; // (offset)
int MIX_DEST_A0; // (offset)
int MIX_DEST_A1; // (offset)
int MIX_DEST_B0; // (offset)
int MIX_DEST_B1; // (offset)
int IN_COEF_L; // (coef.)
int IN_COEF_R; // (coef.)
} REVERBInfo;
#ifdef _WINDOWS
//extern HINSTANCE hInst;
//#define WM_MUTE (WM_USER+543)
#endif
///////////////////////////////////////////////////////////
// SPU.C globals
///////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////
// CFG.C globals
///////////////////////////////////////////////////////////
#ifndef _IN_CFG
#ifndef _WINDOWS
extern char * pConfigFile;
#endif
#endif
///////////////////////////////////////////////////////////
// DSOUND.C globals
///////////////////////////////////////////////////////////
#ifndef _IN_DSOUND
#ifdef _WINDOWS
extern unsigned long LastWrite;
extern unsigned long LastPlay;
#endif
#endif
///////////////////////////////////////////////////////////
// RECORD.C globals
///////////////////////////////////////////////////////////
#ifndef _IN_RECORD
#ifdef _WINDOWS
extern int iDoRecord;
#endif
#endif
///////////////////////////////////////////////////////////
// XA.C globals
///////////////////////////////////////////////////////////
#ifndef _IN_XA
extern xa_decode_t * xapGlobal;
extern unsigned long * XAFeed;
extern unsigned long * XAPlay;
extern unsigned long * XAStart;
extern unsigned long * XAEnd;
extern unsigned long XARepeat;
extern unsigned long XALastVal;
extern int iLeftXAVol;
extern int iRightXAVol;
#endif
#endif // PEOPS2_EXTERNALS
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