effects.h

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#ifndef _AUDIO_EFFECTS_H
#define _AUDIO_EFFECTS_H

#include "internal.h"

#define ADSR_STATE_DISABLED 0
#define ADSR_STATE_INITIAL 1
#define ADSR_STATE_START_LOOP 2
#define ADSR_STATE_LOOP 3
#define ADSR_STATE_FADE 4
#define ADSR_STATE_HANG 5
#define ADSR_STATE_DECAY 6
#define ADSR_STATE_RELEASE 7
#define ADSR_STATE_SUSTAIN 8

#define ADSR_ACTION_RELEASE 0x10
#define ADSR_ACTION_DECAY 0x20
#define ADSR_ACTION_HANG 0x40

#define ADSR_DISABLE 0
#define ADSR_HANG -1
#define ADSR_GOTO -2
#define ADSR_RESTART -3

void sequence_player_process_sound(struct SequencePlayer *seqPlayer);
void note_vibrato_update(struct Note *note);
void note_vibrato_init(struct Note *note);
void adsr_init(struct AdsrState *adsr, struct AdsrEnvelope *envelope, s16 *volOut);
s32 adsr_update(struct AdsrState *adsr);

#endif /* _AUDIO_EFFECTS_H */