2021-09-25 09:31:44 +02:00
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/*====================================================================
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* libaudio.h
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*
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* Copyright 1993, Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
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* Inc.; the contents of this file may not be disclosed to third
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* parties, copied or duplicated in any form, in whole or in part,
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* without the prior written permission of Silicon Graphics, Inc.
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*
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* RESTRICTED RIGHTS LEGEND:
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* Use, duplication or disclosure by the Government is subject to
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* restrictions as set forth in subdivision (c)(1)(ii) of the Rights
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* in Technical Data and Computer Software clause at DFARS
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* 252.227-7013, and/or in similar or successor clauses in the FAR,
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* DOD or NASA FAR Supplement. Unpublished - rights reserved under the
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* Copyright Laws of the United States.
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*====================================================================*/
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/**************************************************************************
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*
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* $Revision: 1.173 $
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* $Date: 1997/12/01 12:42:21 $
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* $Source: /hosts/gate3/exdisk2/cvs/N64OS/Master/cvsmdev2/PR/include/libaudio.h,v $
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*
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**************************************************************************/
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#ifndef __LIB_AUDIO__
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#define __LIB_AUDIO__
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#ifdef _LANGUAGE_C_PLUS_PLUS
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extern "C" {
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#endif
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#include <PR/ultratypes.h>
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#include <PR/mbi.h>
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/***********************************************************************
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* misc defines
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***********************************************************************/
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#ifndef _EMULATOR
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# ifdef AUD_PROFILE
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#define PROFILE_AUD(num, cnt, max, min) \
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{ \
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u32 currCnt = osGetCount(); \
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currCnt -= lastCnt[cnt_index]; \
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cnt_index--; \
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cnt += currCnt; \
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num++; \
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\
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if ( currCnt > max ) max = currCnt; \
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if ( currCnt < min ) min = currCnt; \
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}
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# endif /* AUD_PROFILE */
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#endif /* EMULATOR */
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#ifndef NULL
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#define NULL 0
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#endif
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#define AL_FX_BUFFER_SIZE 8192
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#define AL_FRAME_INIT -1
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#define AL_USEC_PER_FRAME 16000
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#define AL_MAX_PRIORITY 127
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#define AL_GAIN_CHANGE_TIME 1000
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typedef s32 ALMicroTime;
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typedef u8 ALPan;
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#define AL_PAN_CENTER 64
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#define AL_PAN_LEFT 0
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#define AL_PAN_RIGHT 127
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#define AL_VOL_FULL 127
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#define AL_KEY_MIN 0
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#define AL_KEY_MAX 127
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#define AL_DEFAULT_FXMIX 0
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#define AL_SUSTAIN 63
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/***********************************************************************
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* Error handling
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***********************************************************************/
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#ifdef _DEBUG
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#define ALFailIf(condition, error) \
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if (condition) { \
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__osError(error, 0); \
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return; }
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#else
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#define ALFailIf(condition, error) \
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if (condition) { \
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return; }
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#endif
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#ifdef _DEBUG
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#define ALFlagFailIf(condition, flag, error) \
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if (condition) { \
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if(flag) __osError(error, 0); \
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return; }
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#else
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#define ALFlagFailIf(condition, flag, error) \
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if (condition) { \
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return; }
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#endif
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/***********************************************************************
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* Audio Library global routines
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***********************************************************************/
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typedef struct ALLink_s {
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struct ALLink_s *next;
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struct ALLink_s *prev;
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} ALLink;
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void alUnlink(ALLink *element);
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void alLink(ALLink *element, ALLink *after);
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typedef s32 (*ALDMAproc)(s32 addr, s32 len, void *state);
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typedef ALDMAproc (*ALDMANew)(void *state);
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void alCopy(void *src, void *dest, s32 len);
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typedef struct {
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u8 *base;
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u8 *cur;
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s32 len;
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s32 count;
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} ALHeap;
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#define AL_HEAP_DEBUG 1
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#define AL_HEAP_MAGIC 0x20736a73
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#define AL_HEAP_INIT 0
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void alHeapInit(ALHeap *hp, u8 *base, s32 len);
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void *alHeapDBAlloc(u8 *file, s32 line, ALHeap *hp, s32 num, s32 size);
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s32 alHeapCheck(ALHeap *hp);
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#ifdef _DEBUG
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#define alHeapAlloc(hp, elem ,size) alHeapDBAlloc((u8 *) __FILE__,__LINE__,(hp),(elem),(size))
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#else
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#define alHeapAlloc(hp, elem ,size) alHeapDBAlloc(0, 0,(hp),(elem),(size))
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#endif
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/***********************************************************************
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* FX Stuff
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***********************************************************************/
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#define AL_FX_NONE 0
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#define AL_FX_SMALLROOM 1
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#define AL_FX_BIGROOM 2
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#define AL_FX_CHORUS 3
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#define AL_FX_FLANGE 4
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#define AL_FX_ECHO 5
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#define AL_FX_CUSTOM 6
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typedef u8 ALFxId;
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typedef void *ALFxRef;
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/***********************************************************************
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* data structures for sound banks
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***********************************************************************/
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#define AL_BANK_VERSION 0x4231 /* 'B1' */
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/* Possible wavetable types */
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enum {AL_ADPCM_WAVE = 0,
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AL_RAW16_WAVE};
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typedef struct {
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s32 order;
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s32 npredictors;
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s16 book[1]; /* Actually variable size. Must be 8-byte aligned */
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} ALADPCMBook;
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typedef struct {
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u32 start;
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u32 end;
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u32 count;
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ADPCM_STATE state;
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} ALADPCMloop;
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typedef struct {
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u32 start;
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u32 end;
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u32 count;
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} ALRawLoop;
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typedef struct {
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ALMicroTime attackTime;
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ALMicroTime decayTime;
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ALMicroTime releaseTime;
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u8 attackVolume;
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u8 decayVolume;
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} ALEnvelope;
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typedef struct {
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u8 velocityMin;
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u8 velocityMax;
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u8 keyMin;
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u8 keyMax;
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u8 keyBase;
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s8 detune;
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} ALKeyMap;
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typedef struct {
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ALADPCMloop *loop;
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ALADPCMBook *book;
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} ALADPCMWaveInfo;
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typedef struct {
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ALRawLoop *loop;
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} ALRAWWaveInfo;
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typedef struct ALWaveTable_s {
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u8 *base; /* ptr to start of wave data */
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s32 len; /* length of data in bytes */
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u8 type; /* compression type */
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u8 flags; /* offset/address flags */
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union {
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ALADPCMWaveInfo adpcmWave;
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ALRAWWaveInfo rawWave;
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} waveInfo;
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} ALWaveTable;
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typedef struct ALSound_s {
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ALEnvelope *envelope;
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ALKeyMap *keyMap;
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ALWaveTable *wavetable; /* offset to wavetable struct */
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ALPan samplePan;
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u8 sampleVolume;
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u8 flags;
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} ALSound;
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typedef struct {
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u8 volume; /* overall volume for this instrument */
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ALPan pan; /* 0 = hard left, 127 = hard right */
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u8 priority; /* voice priority for this instrument */
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u8 flags;
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u8 tremType; /* the type of tremelo osc. to use */
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u8 tremRate; /* the rate of the tremelo osc. */
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u8 tremDepth; /* the depth of the tremelo osc */
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u8 tremDelay; /* the delay for the tremelo osc */
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u8 vibType; /* the type of tremelo osc. to use */
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u8 vibRate; /* the rate of the tremelo osc. */
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u8 vibDepth; /* the depth of the tremelo osc */
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u8 vibDelay; /* the delay for the tremelo osc */
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s16 bendRange; /* pitch bend range in cents */
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s16 soundCount; /* number of sounds in this array */
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ALSound *soundArray[1];
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} ALInstrument;
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typedef struct ALBank_s {
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s16 instCount; /* number of programs in this bank */
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u8 flags;
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u8 pad;
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s32 sampleRate; /* e.g. 44100, 22050, etc... */
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ALInstrument *percussion; /* default percussion for GM */
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ALInstrument *instArray[1]; /* ARRAY of instruments */
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} ALBank;
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typedef struct { /* Note: sizeof won't be correct */
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s16 revision; /* format revision of this file */
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s16 bankCount; /* number of banks */
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ALBank *bankArray[1]; /* ARRAY of bank offsets */
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} ALBankFile;
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void alBnkfNew(ALBankFile *f, u8 *table);
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/***********************************************************************
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* Sequence Files
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***********************************************************************/
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#define AL_SEQBANK_VERSION 'S1'
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typedef struct {
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u8 *offset;
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s32 len;
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} ALSeqData;
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typedef struct { /* Note: sizeof won't be correct */
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s16 revision; /* format revision of this file */
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s16 seqCount; /* number of sequences */
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ALSeqData seqArray[1]; /* ARRAY of sequence info */
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} ALSeqFile;
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void alSeqFileNew(ALSeqFile *f, u8 *base);
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/***********************************************************************
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* Synthesis driver stuff
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***********************************************************************/
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typedef ALMicroTime (*ALVoiceHandler)(void *);
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typedef struct {
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s32 maxVVoices; /* obsolete */
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s32 maxPVoices;
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s32 maxUpdates;
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s32 maxFXbusses;
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void *dmaproc;
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ALHeap *heap;
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s32 outputRate; /* output sample rate */
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ALFxId fxType;
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s32 *params;
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} ALSynConfig;
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typedef struct ALPlayer_s {
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struct ALPlayer_s *next;
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void *clientData; /* storage for client callback */
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ALVoiceHandler handler; /* voice handler for player */
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ALMicroTime callTime; /* usec requested callback */
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s32 samplesLeft; /* usec remaining to callback */
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} ALPlayer;
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typedef struct ALVoice_s {
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ALLink node;
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struct PVoice_s *pvoice;
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ALWaveTable *table;
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void *clientPrivate;
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s16 state;
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s16 priority;
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s16 fxBus;
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s16 unityPitch;
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} ALVoice;
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typedef struct ALVoiceConfig_s {
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s16 priority; /* voice priority */
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s16 fxBus; /* bus assignment */
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u8 unityPitch; /* unity pitch flag */
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} ALVoiceConfig;
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typedef struct {
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ALPlayer *head; /* client list head */
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ALLink pFreeList; /* list of free physical voices */
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ALLink pAllocList; /* list of allocated physical voices */
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ALLink pLameList; /* list of voices ready to be freed */
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s32 paramSamples;
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s32 curSamples; /* samples from start of game */
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ALDMANew dma;
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ALHeap *heap;
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struct ALParam_s *paramList;
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struct ALMainBus_s *mainBus;
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struct ALAuxBus_s *auxBus; /* ptr to array of aux bus structs */
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struct ALFilter_s *outputFilter; /* last filter in the filter chain */
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s32 numPVoices;
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s32 maxAuxBusses;
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s32 outputRate; /* output sample rate */
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s32 maxOutSamples; /* Maximum samples rsp can generate
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at one time at output rate */
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} ALSynth;
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void alSynNew(ALSynth *s, ALSynConfig *config);
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void alSynDelete(ALSynth *s);
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void alSynAddPlayer(ALSynth *s, ALPlayer *client);
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void alSynRemovePlayer(ALSynth *s, ALPlayer *client);
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s32 alSynAllocVoice(ALSynth *s, ALVoice *v, ALVoiceConfig *vc);
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void alSynFreeVoice(ALSynth *s, ALVoice *voice);
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void alSynStartVoice(ALSynth *s, ALVoice *voice, ALWaveTable *w);
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void alSynStartVoiceParams(ALSynth *s, ALVoice *voice, ALWaveTable *w,
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f32 pitch, s16 vol, ALPan pan, u8 fxmix,
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ALMicroTime t);
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void alSynStopVoice(ALSynth *s, ALVoice *voice);
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void alSynSetVol(ALSynth *s, ALVoice *v, s16 vol, ALMicroTime delta);
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void alSynSetPitch(ALSynth *s, ALVoice *voice, f32 ratio);
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void alSynSetPan(ALSynth *s, ALVoice *voice, ALPan pan);
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void alSynSetFXMix(ALSynth *s, ALVoice *voice, u8 fxmix);
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void alSynSetPriority(ALSynth *s, ALVoice *voice, s16 priority);
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s16 alSynGetPriority(ALSynth *s, ALVoice *voice);
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ALFxRef *alSynAllocFX(ALSynth *s, s16 bus, ALSynConfig *c, ALHeap *hp);
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ALFxRef alSynGetFXRef(ALSynth *s, s16 bus, s16 index);
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void alSynFreeFX(ALSynth *s, ALFxRef *fx);
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void alSynSetFXParam(ALSynth *s, ALFxRef fx, s16 paramID, void *param);
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/***********************************************************************
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* Audio Library (AL) stuff
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***********************************************************************/
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typedef struct {
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ALSynth drvr;
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} ALGlobals;
|
|
|
|
|
|
|
|
extern ALGlobals *alGlobals;
|
|
|
|
|
|
|
|
void alInit(ALGlobals *glob, ALSynConfig *c);
|
|
|
|
void alClose(ALGlobals *glob);
|
|
|
|
|
|
|
|
Acmd *alAudioFrame(Acmd *cmdList, s32 *cmdLen, s16 *outBuf, s32 outLen);
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* Sequence Player stuff
|
|
|
|
***********************************************************************/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Play states
|
|
|
|
*/
|
|
|
|
#define AL_STOPPED 0
|
|
|
|
#define AL_PLAYING 1
|
|
|
|
#define AL_STOPPING 2
|
|
|
|
|
|
|
|
#define AL_DEFAULT_PRIORITY 5
|
|
|
|
#define AL_DEFAULT_VOICE 0
|
|
|
|
#define AL_MAX_CHANNELS 16
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Audio Library event type definitions
|
|
|
|
*/
|
|
|
|
enum ALMsg {
|
|
|
|
AL_SEQ_REF_EVT, /* Reference to a pending event in the sequence. */
|
|
|
|
AL_SEQ_MIDI_EVT,
|
|
|
|
AL_SEQP_MIDI_EVT,
|
|
|
|
AL_TEMPO_EVT,
|
|
|
|
AL_SEQ_END_EVT,
|
|
|
|
AL_NOTE_END_EVT,
|
|
|
|
AL_SEQP_ENV_EVT,
|
|
|
|
AL_SEQP_META_EVT,
|
|
|
|
AL_SEQP_PROG_EVT,
|
|
|
|
AL_SEQP_API_EVT,
|
|
|
|
AL_SEQP_VOL_EVT,
|
|
|
|
AL_SEQP_LOOP_EVT,
|
|
|
|
AL_SEQP_PRIORITY_EVT,
|
|
|
|
AL_SEQP_SEQ_EVT,
|
|
|
|
AL_SEQP_BANK_EVT,
|
|
|
|
AL_SEQP_PLAY_EVT,
|
|
|
|
AL_SEQP_STOP_EVT,
|
|
|
|
AL_SEQP_STOPPING_EVT,
|
|
|
|
AL_TRACK_END,
|
|
|
|
AL_CSP_LOOPSTART,
|
|
|
|
AL_CSP_LOOPEND,
|
|
|
|
AL_CSP_NOTEOFF_EVT,
|
|
|
|
AL_TREM_OSC_EVT,
|
|
|
|
AL_VIB_OSC_EVT
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Midi event definitions
|
|
|
|
*/
|
|
|
|
#define AL_EVTQ_END 0x7fffffff
|
|
|
|
|
|
|
|
enum AL_MIDIstatus {
|
|
|
|
/* For distinguishing channel number from status */
|
|
|
|
AL_MIDI_ChannelMask = 0x0F,
|
|
|
|
AL_MIDI_StatusMask = 0xF0,
|
|
|
|
|
|
|
|
/* Channel voice messages */
|
|
|
|
AL_MIDI_ChannelVoice = 0x80,
|
|
|
|
AL_MIDI_NoteOff = 0x80,
|
|
|
|
AL_MIDI_NoteOn = 0x90,
|
|
|
|
AL_MIDI_PolyKeyPressure = 0xA0,
|
|
|
|
AL_MIDI_ControlChange = 0xB0,
|
|
|
|
AL_MIDI_ChannelModeSelect = 0xB0,
|
|
|
|
AL_MIDI_ProgramChange = 0xC0,
|
|
|
|
AL_MIDI_ChannelPressure = 0xD0,
|
|
|
|
AL_MIDI_PitchBendChange = 0xE0,
|
|
|
|
|
|
|
|
/* System messages */
|
|
|
|
AL_MIDI_SysEx = 0xF0, /* System Exclusive */
|
|
|
|
|
|
|
|
/* System common */
|
|
|
|
AL_MIDI_SystemCommon = 0xF1,
|
|
|
|
AL_MIDI_TimeCodeQuarterFrame = 0xF1,
|
|
|
|
AL_MIDI_SongPositionPointer = 0xF2,
|
|
|
|
AL_MIDI_SongSelect = 0xF3,
|
|
|
|
AL_MIDI_Undefined1 = 0xF4,
|
|
|
|
AL_MIDI_Undefined2 = 0xF5,
|
|
|
|
AL_MIDI_TuneRequest = 0xF6,
|
|
|
|
AL_MIDI_EOX = 0xF7, /* End of System Exclusive */
|
|
|
|
|
|
|
|
/* System real time */
|
|
|
|
AL_MIDI_SystemRealTime = 0xF8,
|
|
|
|
AL_MIDI_TimingClock = 0xF8,
|
|
|
|
AL_MIDI_Undefined3 = 0xF9,
|
|
|
|
AL_MIDI_Start = 0xFA,
|
|
|
|
AL_MIDI_Continue = 0xFB,
|
|
|
|
AL_MIDI_Stop = 0xFC,
|
|
|
|
AL_MIDI_Undefined4 = 0xFD,
|
|
|
|
AL_MIDI_ActiveSensing = 0xFE,
|
|
|
|
AL_MIDI_SystemReset = 0xFF,
|
|
|
|
AL_MIDI_Meta = 0xFF /* MIDI Files only */
|
|
|
|
};
|
|
|
|
|
|
|
|
enum AL_MIDIctrl {
|
|
|
|
AL_MIDI_VOLUME_CTRL = 0x07,
|
|
|
|
AL_MIDI_PAN_CTRL = 0x0A,
|
|
|
|
AL_MIDI_PRIORITY_CTRL = 0x10, /* use general purpose controller for priority */
|
|
|
|
AL_MIDI_FX_CTRL_0 = 0x14,
|
|
|
|
AL_MIDI_FX_CTRL_1 = 0x15,
|
|
|
|
AL_MIDI_FX_CTRL_2 = 0x16,
|
|
|
|
AL_MIDI_FX_CTRL_3 = 0x17,
|
|
|
|
AL_MIDI_FX_CTRL_4 = 0x18,
|
|
|
|
AL_MIDI_FX_CTRL_5 = 0x19,
|
|
|
|
AL_MIDI_FX_CTRL_6 = 0x1A,
|
|
|
|
AL_MIDI_FX_CTRL_7 = 0x1B,
|
|
|
|
AL_MIDI_FX_CTRL_8 = 0x1C,
|
|
|
|
AL_MIDI_FX_CTRL_9 = 0x1D,
|
|
|
|
AL_MIDI_SUSTAIN_CTRL = 0x40,
|
|
|
|
AL_MIDI_FX1_CTRL = 0x5B,
|
|
|
|
AL_MIDI_FX3_CTRL = 0x5D
|
|
|
|
};
|
|
|
|
|
|
|
|
enum AL_MIDImeta {
|
|
|
|
AL_MIDI_META_TEMPO = 0x51,
|
|
|
|
AL_MIDI_META_EOT = 0x2f
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
#define AL_CMIDI_BLOCK_CODE 0xFE
|
|
|
|
#define AL_CMIDI_LOOPSTART_CODE 0x2E
|
|
|
|
#define AL_CMIDI_LOOPEND_CODE 0x2D
|
|
|
|
#define AL_CMIDI_CNTRL_LOOPSTART 102
|
|
|
|
#define AL_CMIDI_CNTRL_LOOPEND 103
|
|
|
|
#define AL_CMIDI_CNTRL_LOOPCOUNT_SM 104
|
|
|
|
#define AL_CMIDI_CNTRL_LOOPCOUNT_BIG 105
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
u8 *curPtr; /* ptr to the next event */
|
|
|
|
s32 lastTicks; /* sequence clock ticks (used by alSeqSetLoc) */
|
|
|
|
s32 curTicks; /* sequence clock ticks of next event (used by loop end test) */
|
|
|
|
s16 lastStatus; /* the last status msg */
|
|
|
|
} ALSeqMarker;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s32 ticks; /* MIDI, Tempo and End events must start with ticks */
|
|
|
|
u8 status;
|
|
|
|
u8 byte1;
|
|
|
|
u8 byte2;
|
|
|
|
u32 duration;
|
|
|
|
} ALMIDIEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s32 ticks;
|
|
|
|
u8 status;
|
|
|
|
u8 type;
|
|
|
|
u8 len;
|
|
|
|
u8 byte1;
|
|
|
|
u8 byte2;
|
|
|
|
u8 byte3;
|
|
|
|
} ALTempoEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s32 ticks;
|
|
|
|
u8 status;
|
|
|
|
u8 type;
|
|
|
|
u8 len;
|
|
|
|
} ALEndEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
struct ALVoice_s *voice;
|
|
|
|
} ALNoteEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
struct ALVoice_s *voice;
|
|
|
|
ALMicroTime delta;
|
|
|
|
u8 vol;
|
|
|
|
} ALVolumeEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s16 vol;
|
|
|
|
} ALSeqpVolEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALSeqMarker *start;
|
|
|
|
ALSeqMarker *end;
|
|
|
|
s32 count;
|
|
|
|
} ALSeqpLoopEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
u8 chan;
|
|
|
|
u8 priority;
|
|
|
|
} ALSeqpPriorityEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
void *seq; /* pointer to a seq (could be an ALSeq or an ALCSeq). */
|
|
|
|
} ALSeqpSeqEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALBank *bank;
|
|
|
|
} ALSeqpBankEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
struct ALVoiceState_s *vs;
|
|
|
|
void *oscState;
|
|
|
|
u8 chan;
|
|
|
|
} ALOscEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s16 type;
|
|
|
|
union {
|
|
|
|
ALMIDIEvent midi;
|
|
|
|
ALTempoEvent tempo;
|
|
|
|
ALEndEvent end;
|
|
|
|
ALNoteEvent note;
|
|
|
|
ALVolumeEvent vol;
|
|
|
|
ALSeqpLoopEvent loop;
|
|
|
|
ALSeqpVolEvent spvol;
|
|
|
|
ALSeqpPriorityEvent sppriority;
|
|
|
|
ALSeqpSeqEvent spseq;
|
|
|
|
ALSeqpBankEvent spbank;
|
|
|
|
ALOscEvent osc;
|
|
|
|
} msg;
|
|
|
|
} ALEvent;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALLink node;
|
|
|
|
ALMicroTime delta;
|
|
|
|
ALEvent evt;
|
|
|
|
} ALEventListItem;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALLink freeList;
|
|
|
|
ALLink allocList;
|
|
|
|
s32 eventCount;
|
|
|
|
} ALEventQueue;
|
|
|
|
|
|
|
|
void alEvtqNew(ALEventQueue *evtq, ALEventListItem *items,
|
|
|
|
s32 itemCount);
|
|
|
|
ALMicroTime alEvtqNextEvent(ALEventQueue *evtq, ALEvent *evt);
|
|
|
|
void alEvtqPostEvent(ALEventQueue *evtq, ALEvent *evt,
|
|
|
|
ALMicroTime delta);
|
|
|
|
void alEvtqFlush(ALEventQueue *evtq);
|
|
|
|
void alEvtqFlushType(ALEventQueue *evtq, s16 type);
|
|
|
|
|
|
|
|
|
|
|
|
#define AL_PHASE_ATTACK 0
|
|
|
|
#define AL_PHASE_NOTEON 0
|
|
|
|
#define AL_PHASE_DECAY 1
|
|
|
|
#define AL_PHASE_SUSTAIN 2
|
|
|
|
#define AL_PHASE_RELEASE 3
|
|
|
|
#define AL_PHASE_SUSTREL 4
|
|
|
|
|
|
|
|
typedef struct ALVoiceState_s {
|
|
|
|
struct ALVoiceState_s *next;/* MUST be first */
|
|
|
|
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 */
|
|
|
|
} ALVoiceState;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALInstrument *instrument; /* instrument assigned to this chan */
|
|
|
|
s16 bendRange; /* pitch bend range in cents */
|
|
|
|
ALFxId fxId; /* type of fx assigned to this chan */
|
|
|
|
ALPan pan; /* overall pan for this chan */
|
|
|
|
u8 priority; /* priority for this chan */
|
|
|
|
u8 vol; /* current volume for this chan */
|
|
|
|
u8 fxmix; /* current fx mix for this chan */
|
|
|
|
u8 sustain; /* current sustain pedal state */
|
|
|
|
f32 pitchBend; /* current pitch bend val in cents */
|
|
|
|
} ALChanState;
|
|
|
|
|
|
|
|
typedef struct ALSeq_s {
|
|
|
|
u8 *base; /* ptr to start of sequence file */
|
|
|
|
u8 *trackStart; /* ptr to first MIDI event */
|
|
|
|
u8 *curPtr; /* ptr to next event to read */
|
|
|
|
s32 lastTicks; /* MIDI ticks for last event */
|
|
|
|
s32 len; /* length of sequence in bytes */
|
|
|
|
f32 qnpt; /* qrter notes / tick (1/division) */
|
|
|
|
s16 division; /* ticks per quarter note */
|
|
|
|
s16 lastStatus; /* for running status */
|
|
|
|
} ALSeq;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
u32 trackOffset[16];
|
|
|
|
u32 division;
|
|
|
|
} ALCMidiHdr;
|
|
|
|
|
|
|
|
typedef struct ALCSeq_s {
|
|
|
|
ALCMidiHdr *base; /* ptr to start of sequence file */
|
|
|
|
u32 validTracks; /* set of flags, showing valid tracks */
|
|
|
|
f32 qnpt; /* qrter notes / tick (1/division) */
|
|
|
|
u32 lastTicks; /* keep track of ticks incase app wants */
|
|
|
|
u32 lastDeltaTicks; /* number of delta ticks of last event */
|
|
|
|
u32 deltaFlag; /* flag: set if delta's not subtracted */
|
|
|
|
u8 *curLoc[16]; /* ptr to current track location, */
|
|
|
|
/* may point to next event, or may point */
|
|
|
|
/* to a backup code */
|
|
|
|
u8 *curBUPtr[16]; /* ptr to next event if in backup mode */
|
|
|
|
u8 curBULen[16]; /* if > 0, then in backup mode */
|
|
|
|
u8 lastStatus[16]; /* for running status */
|
|
|
|
u32 evtDeltaTicks[16]; /* delta time to next event */
|
|
|
|
} ALCSeq;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
u32 validTracks;
|
|
|
|
s32 lastTicks;
|
|
|
|
u32 lastDeltaTicks;
|
|
|
|
u8 *curLoc[16];
|
|
|
|
u8 *curBUPtr[16];
|
|
|
|
u8 curBULen[16];
|
|
|
|
u8 lastStatus[16];
|
|
|
|
u32 evtDeltaTicks[16];
|
|
|
|
} ALCSeqMarker;
|
|
|
|
|
|
|
|
#define NO_SOUND_ERR_MASK 0x01
|
|
|
|
#define NOTE_OFF_ERR_MASK 0x02
|
|
|
|
#define NO_VOICE_ERR_MASK 0x04
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s32 maxVoices; /* max number of voices to alloc */
|
|
|
|
s32 maxEvents; /* max internal events to support */
|
|
|
|
u8 maxChannels; /* max MIDI channels to support (16)*/
|
|
|
|
u8 debugFlags; /* control which error get reported */
|
|
|
|
ALHeap *heap; /* ptr to initialized heap */
|
|
|
|
void *initOsc;
|
|
|
|
void *updateOsc;
|
|
|
|
void *stopOsc;
|
|
|
|
} ALSeqpConfig;
|
|
|
|
|
|
|
|
typedef ALMicroTime (*ALOscInit)(void **oscState,f32 *initVal, u8 oscType,
|
|
|
|
u8 oscRate, u8 oscDepth, u8 oscDelay);
|
|
|
|
typedef ALMicroTime (*ALOscUpdate)(void *oscState, f32 *updateVal);
|
|
|
|
typedef void (*ALOscStop)(void *oscState);
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALPlayer node; /* note: must be first in structure */
|
|
|
|
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 */
|
|
|
|
ALEvent nextEvent;
|
|
|
|
ALEventQueue evtq;
|
|
|
|
ALMicroTime frameTime;
|
|
|
|
ALChanState *chanState; /* 16 channels for MIDI */
|
|
|
|
ALVoiceState *vAllocHead; /* list head for allocated voices */
|
|
|
|
ALVoiceState *vAllocTail; /* list tail for allocated voices */
|
|
|
|
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 */
|
|
|
|
} ALSeqPlayer;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALPlayer node; /* note: must be first in structure */
|
|
|
|
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 */
|
|
|
|
ALEvent nextEvent;
|
|
|
|
ALEventQueue evtq;
|
|
|
|
ALMicroTime frameTime;
|
|
|
|
ALChanState *chanState; /* 16 channels for MIDI */
|
|
|
|
ALVoiceState *vAllocHead; /* list head for allocated voices */
|
|
|
|
ALVoiceState *vAllocTail; /* list tail for allocated voices */
|
|
|
|
ALVoiceState *vFreeList; /* list of free voice state structs */
|
|
|
|
ALOscInit initOsc;
|
|
|
|
ALOscUpdate updateOsc;
|
|
|
|
ALOscStop stopOsc;
|
|
|
|
} ALCSPlayer;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sequence data representation routines
|
|
|
|
*/
|
|
|
|
void alSeqNew(ALSeq *seq, u8 *ptr, s32 len);
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|
void alSeqNextEvent(ALSeq *seq, ALEvent *event);
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|
s32 alSeqGetTicks(ALSeq *seq);
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|
f32 alSeqTicksToSec(ALSeq *seq, s32 ticks, u32 tempo);
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|
u32 alSeqSecToTicks(ALSeq *seq, f32 sec, u32 tempo);
|
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|
|
void alSeqNewMarker(ALSeq *seq, ALSeqMarker *m, u32 ticks);
|
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|
|
void alSeqSetLoc(ALSeq *seq, ALSeqMarker *marker);
|
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|
|
void alSeqGetLoc(ALSeq *seq, ALSeqMarker *marker);
|
|
|
|
/*
|
|
|
|
* Compact Sequence data representation routines
|
|
|
|
*/
|
|
|
|
void alCSeqNew(ALCSeq *seq, u8 *ptr);
|
|
|
|
void alCSeqNextEvent(ALCSeq *seq,ALEvent *evt);
|
|
|
|
s32 alCSeqGetTicks(ALCSeq *seq);
|
|
|
|
f32 alCSeqTicksToSec(ALCSeq *seq, s32 ticks, u32 tempo);
|
|
|
|
u32 alCSeqSecToTicks(ALCSeq *seq, f32 sec, u32 tempo);
|
|
|
|
void alCSeqNewMarker(ALCSeq *seq, ALCSeqMarker *m, u32 ticks);
|
|
|
|
void alCSeqSetLoc(ALCSeq *seq, ALCSeqMarker *marker);
|
|
|
|
void alCSeqGetLoc(ALCSeq *seq, ALCSeqMarker *marker);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sequence Player routines
|
|
|
|
*/
|
|
|
|
f32 alCents2Ratio(s32 cents);
|
|
|
|
|
|
|
|
void alSeqpNew(ALSeqPlayer *seqp, ALSeqpConfig *config);
|
|
|
|
void alSeqpDelete(ALSeqPlayer *seqp);
|
|
|
|
void alSeqpSetSeq(ALSeqPlayer *seqp, ALSeq *seq);
|
|
|
|
ALSeq *alSeqpGetSeq(ALSeqPlayer *seqp);
|
|
|
|
void alSeqpPlay(ALSeqPlayer *seqp);
|
|
|
|
void alSeqpStop(ALSeqPlayer *seqp);
|
|
|
|
s32 alSeqpGetState(ALSeqPlayer *seqp);
|
|
|
|
void alSeqpSetBank(ALSeqPlayer *seqp, ALBank *b);
|
|
|
|
void alSeqpSetTempo(ALSeqPlayer *seqp, s32 tempo);
|
|
|
|
s32 alSeqpGetTempo(ALSeqPlayer *seqp);
|
|
|
|
s16 alSeqpGetVol(ALSeqPlayer *seqp); /* Master volume control */
|
|
|
|
void alSeqpSetVol(ALSeqPlayer *seqp, s16 vol);
|
|
|
|
void alSeqpLoop(ALSeqPlayer *seqp, ALSeqMarker *start, ALSeqMarker *end, s32 count);
|
|
|
|
|
|
|
|
void alSeqpSetChlProgram(ALSeqPlayer *seqp, u8 chan, u8 prog);
|
|
|
|
s32 alSeqpGetChlProgram(ALSeqPlayer *seqp, u8 chan);
|
|
|
|
void alSeqpSetChlFXMix(ALSeqPlayer *seqp, u8 chan, u8 fxmix);
|
|
|
|
u8 alSeqpGetChlFXMix(ALSeqPlayer *seqp, u8 chan);
|
|
|
|
void alSeqpSetChlVol(ALSeqPlayer *seqp, u8 chan, u8 vol);
|
|
|
|
u8 alSeqpGetChlVol(ALSeqPlayer *seqp, u8 chan);
|
|
|
|
void alSeqpSetChlPan(ALSeqPlayer *seqp, u8 chan, ALPan pan);
|
|
|
|
ALPan alSeqpGetChlPan(ALSeqPlayer *seqp, u8 chan);
|
|
|
|
void alSeqpSetChlPriority(ALSeqPlayer *seqp, u8 chan, u8 priority);
|
|
|
|
u8 alSeqpGetChlPriority(ALSeqPlayer *seqp, u8 chan);
|
|
|
|
void alSeqpSendMidi(ALSeqPlayer *seqp, s32 ticks, u8 status, u8 byte1, u8 byte2);
|
|
|
|
|
|
|
|
|
|
|
|
/* Maintain backwards compatibility with old routine names. */
|
|
|
|
#define alSeqpSetProgram alSeqpSetChlProgram
|
|
|
|
#define alSeqpGetProgram alSeqpGetChlProgram
|
|
|
|
#define alSeqpSetFXMix alSeqpSetChlFXMix
|
|
|
|
#define alSeqpGetFXMix alSeqpGetChlFXMix
|
|
|
|
#define alSeqpSetPan alSeqpSetChlPan
|
|
|
|
#define alSeqpGetPan alSeqpGetChlPan
|
|
|
|
#define alSeqpSetChannelPriority alSeqpSetChlPriority
|
|
|
|
#define alSeqpGetChannelPriority alSeqpGetChlPriority
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Compressed Sequence Player routines
|
|
|
|
*/
|
|
|
|
void alCSPNew(ALCSPlayer *seqp, ALSeqpConfig *config);
|
|
|
|
void alCSPDelete(ALCSPlayer *seqp);
|
|
|
|
void alCSPSetSeq(ALCSPlayer *seqp, ALCSeq *seq);
|
|
|
|
ALCSeq *alCSPGetSeq(ALCSPlayer *seqp);
|
|
|
|
void alCSPPlay(ALCSPlayer *seqp);
|
|
|
|
void alCSPStop(ALCSPlayer *seqp);
|
|
|
|
s32 alCSPGetState(ALCSPlayer *seqp);
|
|
|
|
void alCSPSetBank(ALCSPlayer *seqp, ALBank *b);
|
|
|
|
void alCSPSetTempo(ALCSPlayer *seqp, s32 tempo);
|
|
|
|
s32 alCSPGetTempo(ALCSPlayer *seqp);
|
|
|
|
s16 alCSPGetVol(ALCSPlayer *seqp);
|
|
|
|
void alCSPSetVol(ALCSPlayer *seqp, s16 vol);
|
|
|
|
|
|
|
|
void alCSPSetChlProgram(ALCSPlayer *seqp, u8 chan, u8 prog);
|
|
|
|
s32 alCSPGetChlProgram(ALCSPlayer *seqp, u8 chan);
|
|
|
|
void alCSPSetChlFXMix(ALCSPlayer *seqp, u8 chan, u8 fxmix);
|
|
|
|
u8 alCSPGetChlFXMix(ALCSPlayer *seqp, u8 chan);
|
|
|
|
void alCSPSetChlPan(ALCSPlayer *seqp, u8 chan, ALPan pan);
|
|
|
|
ALPan alCSPGetChlPan(ALCSPlayer *seqp, u8 chan);
|
|
|
|
void alCSPSetChlVol(ALCSPlayer *seqp, u8 chan, u8 vol);
|
|
|
|
u8 alCSPGetChlVol(ALCSPlayer *seqp, u8 chan);
|
|
|
|
void alCSPSetChlPriority(ALCSPlayer *seqp, u8 chan, u8 priority);
|
|
|
|
u8 alCSPGetChlPriority(ALCSPlayer *seqp, u8 chan);
|
|
|
|
void alCSPSendMidi(ALCSPlayer *seqp, s32 ticks, u8 status,
|
|
|
|
u8 byte1, u8 byte2);
|
|
|
|
|
|
|
|
|
|
|
|
/* Maintain backwards compatibility with old routine names. */
|
|
|
|
#define alCSPSetProgram alCSPSetChlProgram
|
|
|
|
#define alCSPGetProgram alCSPGetChlProgram
|
|
|
|
#define alCSPSetFXMix alCSPSetChlFXMix
|
|
|
|
#define alCSPGetFXMix alCSPGetChlFXMix
|
|
|
|
#define alCSPSetPan alCSPSetChlPan
|
|
|
|
#define alCSPGetPan alCSPGetChlPan
|
|
|
|
#define alCSPSetChannelPriority alCSPSetChlPriority
|
|
|
|
#define alCSPGetChannelPriority alCSPGetChlPriority
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/***********************************************************************
|
|
|
|
* Sound Player stuff
|
|
|
|
***********************************************************************/
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
s32 maxSounds;
|
|
|
|
s32 maxEvents;
|
|
|
|
ALHeap *heap;
|
|
|
|
} ALSndpConfig;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
ALPlayer node; /* note: must be first in structure */
|
|
|
|
ALEventQueue evtq;
|
|
|
|
ALEvent nextEvent;
|
|
|
|
ALSynth *drvr; /* reference to the client driver */
|
|
|
|
s32 target;
|
|
|
|
void *sndState;
|
|
|
|
s32 maxSounds;
|
|
|
|
ALMicroTime frameTime;
|
|
|
|
ALMicroTime nextDelta; /* microseconds to next callback */
|
|
|
|
ALMicroTime curTime;
|
|
|
|
} ALSndPlayer;
|
|
|
|
|
|
|
|
typedef s16 ALSndId;
|
|
|
|
|
|
|
|
void alSndpNew(ALSndPlayer *sndp, ALSndpConfig *c);
|
|
|
|
void alSndpDelete(ALSndPlayer *sndp);
|
|
|
|
|
|
|
|
ALSndId alSndpAllocate(ALSndPlayer *sndp, ALSound *sound);
|
|
|
|
void alSndpDeallocate(ALSndPlayer *sndp, ALSndId id);
|
|
|
|
|
|
|
|
void alSndpSetSound(ALSndPlayer *sndp, ALSndId id);
|
|
|
|
ALSndId alSndpGetSound(ALSndPlayer *sndp);
|
|
|
|
|
|
|
|
void alSndpPlay(ALSndPlayer *sndp);
|
|
|
|
void alSndpPlayAt(ALSndPlayer *sndp, ALMicroTime delta);
|
|
|
|
void alSndpStop(ALSndPlayer *sndp);
|
|
|
|
|
|
|
|
void alSndpSetVol(ALSndPlayer *sndp, s16 vol);
|
|
|
|
void alSndpSetPitch(ALSndPlayer *sndp, f32 pitch);
|
|
|
|
void alSndpSetPan(ALSndPlayer *sndp, ALPan pan);
|
|
|
|
void alSndpSetPriority(ALSndPlayer *sndp, ALSndId id, u8 priority);
|
|
|
|
|
|
|
|
void alSndpSetFXMix(ALSndPlayer *sndp, u8 mix);
|
|
|
|
s32 alSndpGetState(ALSndPlayer *sndp);
|
|
|
|
|
|
|
|
#ifndef _FINALROM
|
|
|
|
void alParseAbiCL(Acmd *cmdList, u32 nbytes);
|
|
|
|
#endif
|
|
|
|
#ifdef _LANGUAGE_C_PLUS_PLUS
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#endif /* !__LIB_AUDIO__ */
|
|
|
|
|
|
|
|
|
|
|
|
|