sound.h

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#ifdef LATTICE
/* EasySound.h        */
/*                    */
/* V2.00 1990-0-23    */
/*                    */
/* AMIGA C CLUB (ACC) */
/* Anders Bjerin      */
/* Tulevagen 22       */
/* 181 41  LIDINGO    */
/* SWEDEN             */

#ifndef SOUND_ROUTINES
#define SOUND_ROUTINES
#define DEBUG_ENABLE_AUDIO

/* Sound channels: */
#define LEFT0         0
#define RIGHT0        1
#define RIGHT1        2
#define LEFT1         3

#define NONSTOP       0
#define ONCE          1
#define MAXVOLUME    64
#define MINVOLUME     0
#define NORMALRATE    0

/* Structure containing all necessary information about the sound: */
typedef struct
{
    BYTE *SoundBuffer; /* WaveForm Buffers */
    UWORD RecordRate;    /* Record Rate */
    ULONG FileLength;    /* WaveForm Lengths */
} SoundInfo;

typedef LONG Fixed;

typedef struct
{
    ULONG oneShotHiSamples;  /* #samples in the high octave 1-shot part */
    ULONG repeatHiSamples;   /* #samples in the high octave repeat part */
    ULONG samplesPerHiCycle; /* #samples/cycle in high octave, else 0   */
    UWORD samplesPerSec;         /* Data sampling rate */
    UBYTE ctOctave;                  /* Number of octaves of waveforms */
    UBYTE sCompression;          /* Data compression technique used */
    Fixed volume;                        /* Playback volume from 0 to 0x10000 */
} Voice8Header;

BOOL PrepareIOA(UWORD period, UWORD volume, UWORD cycles, UBYTE channel, SoundInfo *info);
ULONG GetSize(STRPTR filename);
ULONG SizeIFF(STRPTR filename);
UWORD ReadIFF(STRPTR filename, SoundInfo *info);
BOOL MoveTo(STRPTR check_string, FILE *file_ptr);

extern SoundInfo *PrepareSound(STRPTR file);
extern BOOL PlaySound(SoundInfo *info, UWORD volume, UBYTE channel, WORD delta_rate, UWORD repeat);
extern void StopSound(UBYTE channel);
extern void RemoveSound(SoundInfo *info);
extern void RemoveSoundStruct(SoundInfo *info);
extern UWORD LoadSound(STRPTR filename, SoundInfo *info);
extern SoundInfo *LoadPackedSound(char *filename, BYTE *packed_block, BYTE *unpacked_block);
// void adpcm_decoder_init(void);
BYTE *adpcm_decode(UBYTE *input, int numSamples, BYTE *output);

#endif
#endif