Lfo.h

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#ifndef NW4HBM_SND_LFO_H
#define NW4HBM_SND_LFO_H
 
#include <revolution/types.h>
 
namespace nw4hbm {
    namespace snd {
        namespace detail {
 
            typedef struct LfoParam {
                LfoParam() { Init(); }
 
                void Init();
 
                /* 0x00 */ f32 depth;
                /* 0x04 */ f32 speed;
                /* 0x08 */ u32 delay;
                /* 0x0C */ u8 range;
                /* 0x0D */ u8 padding[3];
            } LfoParam;
 
            class Lfo {
            public:
                Lfo() : mDelayCounter(0), mCounter(0.0f) {}
 
                LfoParam& GetParam() { return mParam; }
                void SetParam(const LfoParam& rParam) { mParam = rParam; }
 
                void Reset();
                void Update(int msec);
 
                f32 GetValue() const;
 
            private:
                static const int TABLE_SIZE = 32;
 
                static s8 GetSinIdx(int idx);
 
                /* 0x00 */ LfoParam mParam;
                /* 0x10 */ u32 mDelayCounter;
                /* 0x14 */ f32 mCounter;
            };
 
        }  // namespace detail
    }  // namespace snd
}  // namespace nw4hbm
 
#endif