/*====================================================================
*
* Copyright 1993, Silicon Graphics, Inc.
* All Rights Reserved.
*
* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
* Inc.; the contents of this file may not be disclosed to third
* parties, copied or duplicated in any form, in whole or in part,
* without the prior written permission of Silicon Graphics, Inc.
*
* RESTRICTED RIGHTS LEGEND:
* Use, duplication or disclosure by the Government is subject to
* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
* in Technical Data and Computer Software clause at DFARS
* 252.227-7013, and/or in similar or successor clauses in the FAR,
* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
* Copyright Laws of the United States.
*====================================================================*/
#ifndef __N_LIBAUDIO__
#define __N_LIBAUDIO__
#include <PR/libaudio.h>
#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif
#include <PR/ultratypes.h>
#include <PR/mbi.h>
/*
* Synthesis driver stuff
*/
typedef struct N_ALVoice_s {
ALLink node;
struct N_PVoice_s *pvoice;
ALWaveTable *table;
void *clientPrivate;
s16 state;
s16 priority;
s16 fxBus;
s16 unityPitch;
} N_ALVoice;
typedef struct {
ALPlayer *head; /* client list head */
ALPlayer *n_seqp1; /* for fade in / fade out */
ALPlayer *n_seqp2;
ALPlayer *n_sndp;
ALLink pFreeList; /* list of free physical voices */
ALLink pAllocList; /* list of allocated physical voices */
ALLink pLameList; /* list of voices ready to be freed */
s32 paramSamples;
s32 curSamples; /* samples from start of game */
ALDMANew dma;
ALHeap *heap;
struct ALParam_s *paramList;
struct N_ALMainBus_s *mainBus;
struct N_ALAuxBus_s *auxBus;
s32 numPVoices;
s32 maxAuxBusses;
s32 outputRate;
s32 maxOutSamples;
s32 sv_dramout;
s32 sv_first;
} N_ALSynth;
void n_alSynAddPlayer(ALPlayer *client);
void n_alSynAddSndPlayer(ALPlayer *client);
void n_alSynAddSeqPlayer(ALPlayer *client);
ALFxRef n_alSynAllocFX( s16 bus,ALSynConfig *c, ALHeap *hp);
s32 n_alSynAllocVoice( N_ALVoice *voice, ALVoiceConfig *vc);
void n_alSynFreeVoice(N_ALVoice *voice);
ALFxRef n_alSynGetFXRef( s16 bus, s16 index);
s16 n_alSynGetPriority( N_ALVoice *voice);
void n_alSynRemovePlayer( ALPlayer *client);
void n_alSynSetFXMix(N_ALVoice *v, u8 fxmix);
void n_alSynSetFXParam(ALFxRef fx, s16 paramID, void *param);
void n_alSynFreeFX(ALFxRef *fx);
void n_alSynSetPan(N_ALVoice *v, u8 pan);
void n_alSynSetPitch( N_ALVoice *v, f32 pitch);
void n_alSynSetPriority( N_ALVoice *voice, s16 priority);
void n_alSynSetVol( N_ALVoice *v, s16 volume, ALMicroTime t);
void n_alSynStartVoice(N_ALVoice *v, ALWaveTable *table);
void n_alSynStartVoiceParams(N_ALVoice *v, ALWaveTable *w,f32 pitch, s16 vol,
ALPan pan, u8 fxmix, ALMicroTime t);
void n_alSynStopVoice( N_ALVoice *v);
void n_alSynNew(ALSynConfig *c);
void n_alSynDelete(void);
/*
* Audio Library (AL) stuff
*/
typedef struct {
N_ALSynth drvr;
} N_ALGlobals;
extern N_ALGlobals *n_alGlobals;
extern N_ALSynth *n_syn;
void n_alInit(N_ALGlobals *g, ALSynConfig *c);
void n_alClose(N_ALGlobals *glob);
Acmd *n_alAudioFrame(Acmd *cmdList, s32 *cmdLen,
s16 *outBuf, s32 outLen);
/*
* Sequence Player stuff
*/
typedef struct {
struct N_ALVoice_s *voice;
} N_ALNoteEvent;
typedef struct {
struct N_ALVoice_s *voice;
ALMicroTime delta;
u8 vol;
} N_ALVolumeEvent;
typedef struct {
struct N_ALVoiceState_s *vs;
void *oscState;
u8 chan;
} N_ALOscEvent;
typedef struct {
s16 type;
union {
ALMIDIEvent midi;
ALTempoEvent tempo;
ALEndEvent end;
N_ALNoteEvent note;
N_ALVolumeEvent vol;
ALSeqpLoopEvent loop;
ALSeqpVolEvent spvol;
ALSeqpPriorityEvent sppriority;
ALSeqpSeqEvent spseq;
ALSeqpBankEvent spbank;
N_ALOscEvent osc;
} msg;
} N_ALEvent;
typedef struct {
ALLink node;
ALMicroTime delta;
N_ALEvent evt;
} N_ALEventListItem;
void n_alEvtqNew(ALEventQueue *evtq, N_ALEventListItem *items, s32 itemCount);
ALMicroTime n_alEvtqNextEvent(ALEventQueue *evtq, N_ALEvent *evt);
void n_alEvtqPostEvent(ALEventQueue *evtq, N_ALEvent *evt, ALMicroTime delta);
void n_alEvtqFlushType(ALEventQueue *evtq, s16 type);
typedef struct N_ALVoiceState_s {
struct N_ALVoiceState_s *next;/* MUST be first */
N_ALVoice voice;
ALSound *sound;
ALMicroTime envEndTime; /* time of envelope segment end */
f32 pitch; /* currect pitch ratio */
f32 vibrato; /* current value of the vibrato */
u8 envGain; /* current envelope gain */
u8 channel; /* channel assignment */
u8 key; /* note on key number */
u8 velocity; /* note on velocity */
u8 envPhase; /* what envelope phase */
u8 phase;
u8 tremelo; /* current value of the tremelo */
u8 flags; /* bit 0 tremelo flag
bit 1 vibrato flag */
} N_ALVoiceState;
typedef struct {
ALPlayer node; /* note: must be first in structure */
N_ALSynth *drvr; /* reference to the client driver */
ALSeq *target; /* current sequence */
ALMicroTime curTime;
ALBank *bank; /* current ALBank */
s32 uspt; /* microseconds per tick */
s32 nextDelta; /* microseconds to next callback */
s32 state;
u16 chanMask; /* active channels */
s16 vol; /* overall sequence volume */
u8 maxChannels; /* number of MIDI channels */
u8 debugFlags; /* control which error get reported */
N_ALEvent nextEvent;
ALEventQueue evtq;
ALMicroTime frameTime;
ALChanState *chanState; /* 16 channels for MIDI */
N_ALVoiceState *vAllocHead; /* list head for allocated voices */
N_ALVoiceState *vAllocTail; /* list tail for allocated voices */
N_ALVoiceState *vFreeList; /* list of free voice state structs */
ALOscInit initOsc;
ALOscUpdate updateOsc;
ALOscStop stopOsc;
ALSeqMarker *loopStart;
ALSeqMarker *loopEnd;
s32 loopCount; /* -1 = loop forever, 0 = no loop */
} N_ALSeqPlayer;
typedef struct {
ALPlayer node; /* note: must be first in structure */
N_ALSynth *drvr; /* reference to the client driver */
ALCSeq *target; /* current sequence */
ALMicroTime curTime;
ALBank *bank; /* current ALBank */
s32 uspt; /* microseconds per tick */
s32 nextDelta; /* microseconds to next callback */
s32 state;
u16 chanMask; /* active channels */
s16 vol; /* overall sequence volume */
u8 maxChannels; /* number of MIDI channels */
u8 debugFlags; /* control which error get reported */
N_ALEvent nextEvent;
ALEventQueue evtq;
ALMicroTime frameTime;
ALChanState *chanState; /* 16 channels for MIDI */
N_ALVoiceState *vAllocHead; /* list head for allocated voices */
N_ALVoiceState *vAllocTail; /* list tail for allocated voices */
N_ALVoiceState *vFreeList; /* list of free voice state structs */
ALOscInit initOsc;
ALOscUpdate updateOsc;
ALOscStop stopOsc;
} N_ALCSPlayer;
/*
* Sequence data representation routines
*/
void n_alSeqNextEvent(ALSeq *seq, N_ALEvent *event);
void n_alSeqNewMarker(ALSeq *seq, ALSeqMarker *m, u32 ticks);
void n_alCSeqNew(ALCSeq *seq, u8 *ptr);
void n_alCSeqNextEvent(ALCSeq *seq, N_ALEvent *evt);
void n_alCSeqNewMarker(ALCSeq *seq, ALCSeqMarker *m, u32 ticks);
/*
* Sequence Player routines
*/
void n_alSeqpNew(N_ALSeqPlayer *seqp, ALSeqpConfig *config);
void n_alSeqpDelete(N_ALSeqPlayer *seqp);
u8 n_alSeqpGetChlVol(N_ALSeqPlayer *seqp, u8 chan);
u8 n_alSeqpGetChlFXMix(N_ALSeqPlayer *seqp, u8 chan);
ALPan n_alSeqpGetChlPan(N_ALSeqPlayer *seqp, u8 chan);
u8 n_alSeqpGetChlPriority(N_ALSeqPlayer *seqp, u8 chan);
s32 n_alSeqpGetChlProgram(N_ALSeqPlayer *seqp, u8 chan);
ALSeq *n_alSeqpGetSeq(N_ALSeqPlayer *seqp);
s32 n_alSeqpGetState(N_ALSeqPlayer *seqp);
s32 n_alSeqpGetTempo(N_ALSeqPlayer *seqp);
s16 n_alSeqpGetVol(N_ALSeqPlayer *seqp); /* Master volume control */
void n_alSeqpPlay(N_ALSeqPlayer *seqp);
void n_alSeqpSendMidi(N_ALSeqPlayer *seqp, s32 ticks, u8 status, u8 byte1, u8 byte2);
void n_alSeqpSetBank(N_ALSeqPlayer *seqp, ALBank *b);
void n_alSeqpSetChlVol(N_ALSeqPlayer *seqp, u8 chan, u8 vol);
void n_alSeqpSetChlFXMix(N_ALSeqPlayer *seqp, u8 chan, u8 fxmix);
void n_alSeqpSetChlPan(N_ALSeqPlayer *seqp, u8 chan, ALPan pan);
void n_alSeqpSetChlPriority(N_ALSeqPlayer *seqp, u8 chan, u8 priority);
void n_alSeqpSetChlProgram(N_ALSeqPlayer *seqp, u8 chan, u8 prog);
void n_alSeqpSetSeq(N_ALSeqPlayer *seqp, ALSeq *seq);
void n_alSeqpSetTempo(N_ALSeqPlayer *seqp, s32 tempo);
void n_alSeqpSetVol(N_ALSeqPlayer *seqp, s16 vol);
void n_alSeqpStop(N_ALSeqPlayer *seqp);
void n_alSeqpLoop(N_ALSeqPlayer *seqp, ALSeqMarker *start, ALSeqMarker *end, s32 count);
/*
* Compressed Sequence Player routines
*/
void n_alCSPNew(N_ALCSPlayer *seqp, ALSeqpConfig *config);
void n_alCSPDelete(N_ALCSPlayer *seqp);
u8 n_alCSPGetChlVol(N_ALCSPlayer *seqp, u8 chan);
u8 n_alCSPGetChlFXMix(N_ALCSPlayer *seqp, u8 chan);
ALPan n_alCSPGetChlPan(N_ALCSPlayer *seqp, u8 chan);
u8 n_alCSPGetChlPriority(N_ALCSPlayer *seqp, u8 chan);
s32 n_alCSPGetChlProgram(N_ALCSPlayer *seqp, u8 chan);
ALCSeq *n_alCSPGetSeq(N_ALCSPlayer *seqp);
s32 n_alCSPGetState(N_ALCSPlayer *seqp);
s32 n_alCSPGetTempo(N_ALCSPlayer *seqp);
s16 n_alCSPGetVol(N_ALCSPlayer *seqp);
void n_alCSPPlay(N_ALCSPlayer *seqp);
void n_alCSPSendMidi(N_ALCSPlayer *seqp, s32 ticks, u8 status, u8 byte1, u8 byte2);
void n_alCSPSetBank(N_ALCSPlayer *seqp, ALBank *b);
void n_alCSPSetChlVol(N_ALCSPlayer *seqp, u8 chan, u8 vol);
void n_alCSPSetChlFXMix(N_ALCSPlayer *seqp, u8 chan, u8 fxmix);
void n_alCSPSetChlPan(N_ALCSPlayer *seqp, u8 chan, ALPan pan);
void n_alCSPSetChlPriority(N_ALCSPlayer *seqp, u8 chan, u8 priority);
void n_alCSPSetChlProgram(N_ALCSPlayer *seqp, u8 chan, u8 prog);
void n_alCSPSetSeq(N_ALCSPlayer *seqp, ALCSeq *seq);
void n_alCSPSetTempo(N_ALCSPlayer *seqp, s32 tempo);
void n_alCSPSetVol(N_ALCSPlayer *seqp, s16 vol);
void n_alCSPStop(N_ALCSPlayer *seqp);
/*
* Sound Player stuff
*/
typedef struct {
ALPlayer node; /* note: must be first in structure */
ALEventQueue evtq;
N_ALEvent nextEvent;
N_ALSynth *drvr; /* reference to the client driver */
s32 target;
void *sndState;
s32 maxSounds;
ALMicroTime frameTime;
ALMicroTime nextDelta; /* microseconds to next callback */
ALMicroTime curTime;
} N_ALSndPlayer;
void n_alSndpNew(N_ALSndPlayer *sndp, ALSndpConfig *c);
void n_alSndpDelete(void);
ALSndId n_alSndpAllocate(ALSound *sound);
void n_alSndpDeallocate(ALSndId id);
s32 n_alSndpGetState(void);
void n_alSndpPlay(void);
void n_alSndpPlayAt(ALMicroTime delta);
void n_alSndpSetFXMix(u8 mix);
void n_alSndpSetPan(ALPan pan);
void n_alSndpSetPitch(f32 pitch);
void n_alSndpSetPriority(ALSndId id, u8 priority);
void n_alSndpSetVol(s16 vol);
void n_alSndpStop(void);
ALSndId n_alSndpGetSound(void);
void n_alSndpSetSound(ALSndId id);
/*
* for n_audio micro code
*/
extern long long int n_aspMainTextStart[], n_aspMainTextEnd[];
extern long long int n_aspMainDataStart[], n_aspMainDataEnd[];
#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif
#endif /* __N_LIBAUDIO__ */