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#ifndef NW4R_SND_ENV_GENERATOR_H
#define NW4R_SND_ENV_GENERATOR_H
/*******************************************************************************
* headers
*/
#include "common.h"
/*******************************************************************************
* classes and functions
*/
namespace nw4r { namespace snd { namespace detail
{
// [R89JEL]:/bin/RVL/Debug/mainD.elf:.debug::0x28b11
class EnvGenerator
{
// enums
public:
// [R89JEL]:/bin/RVL/Debug/mainD.elf:.debug::0x28a77
enum Status
{
STATUS_ATTACK,
STATUS_HOLD,
STATUS_DECAY,
STATUS_SUSTAIN,
STATUS_RELEASE,
};
// methods
public:
// cdtors
EnvGenerator();
// methods
void Init(f32 initDecibel);
void Update(int msec);
void Reset(f32 initDecibel);
Status GetStatus() const { return mStatus; }
f32 GetValue() const;
void SetStatus(Status status) { mStatus = status; }
void SetAttack(int attack);
void SetHold(int hold);
void SetDecay(int decay);
void SetSustain(int sustain);
void SetRelease(int release);
private:
f32 CalcRelease(int release);
s16 CalcDecibelSquare(int scale);
// static members
public:
static int const CALC_DECIBEL_SCALE_MAX;
static int const DECIBEL_SQUARE_TABLE_SIZE = 128;
static int const RELEASE_INIT = 127;
static int const SUSTAIN_INIT = 127;
static int const DECAY_INIT = 127;
static int const HOLD_INIT = 0;
static int const ATTACK_INIT = 127;
static f32 const volatile VOLUME_INIT;
private:
static s16 const DecibelSquareTable[DECIBEL_SQUARE_TABLE_SIZE];
// members
private:
Status mStatus; // size 0x04, offset 0x00
f32 mValue; // size 0x04, offset 0x04
f32 mDecay; // size 0x04, offset 0x08
f32 mRelease; // size 0x04, offset 0x0c
f32 mAttack; // size 0x04, offset 0x10
u8 mSustain; // size 0x01, offset 0x14
/* 1 byte padding */
u16 mHold; // size 0x02, offset 0x16
u16 mHoldCounter; // size 0x02, offset 0x18
/* 2 bytes padding */
}; // size 0x1c
}}} // namespace nw4r::snd::detail
#endif // NW4R_SND_ENV_GENERATOR_H
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