_gs_ramp
_gs_ramp* fPausing;
struct _gs_ramp;
FillBuffer(_gs_ramp* ramp, T* dest, const T* src, size_t* bytes)
_gs_ramp*
_gs_ramp* ramp = new (std::nothrow) _gs_ramp;
ChangeRamp(_gs_ramp* ramp)
_gs_ramp* InitRamp(float* value, float set, float frames, bigtime_t duration);
bool ChangeRamp(_gs_ramp* ramp);
struct _gs_ramp;
_gs_ramp* fGainRamp;
_gs_ramp* fPanRamp;