public void rewind()
{
mSec0 = mTempoTable.getSecFromClock(mClockStart);
mSec1 = mTempoTable.getSecFromClock(mClockStart + mClockWidth);
mFadeWidth = (float)(mSec1 - mSec0) * 0.2f;
mPhase = 0;
mStartRate = mRate.getValue(0.0f, mStartRate);
mStartDepth = mDepth.getValue(0.0f, mStartDepth);
mAmplitude = mStartDepth * 2.5f / 127.0f / 2.0f; // ビブラートの振幅。
mPeriod = VibratoPointIteratorBySec.getPeriodFromRate(mStartRate); //ビブラートの周期、秒
mOmega = (float)(2.0 * Math.PI / mPeriod); // 角速度(rad/sec)
mSec = mSec0;
mIndex = 0;
mFirst = true;
}
public Double next()
{
if (mFirst)
{
mFirst = false;
return(0.0);
}
else
{
mIndex++;
if (mIndex < mClockWidth)
{
int clock = mClockStart + mIndex;
double t_sec = mTempoTable.getSecFromClock(clock);
if (mSec0 <= t_sec && t_sec <= mSec0 + mFadeWidth)
{
mAmplitude *= (t_sec - mSec0) / mFadeWidth;
}
if (mSec1 - mFadeWidth <= t_sec && t_sec <= mSec1)
{
mAmplitude *= (mSec1 - t_sec) / mFadeWidth;
}
mPhase += mOmega * (t_sec - mSec);
double ret = mAmplitude * Math.Sin(mPhase);
float v = (float)(clock - mClockStart) / (float)mClockWidth;
int r = mRate.getValue(v, mStartRate);
int d = mDepth.getValue(v, mStartDepth);
mAmplitude = d * 2.5f / 127.0f / 2.0f;
mPeriod = VibratoPointIteratorBySec.getPeriodFromRate(r);
mOmega = (float)(2.0 * Math.PI / mPeriod);
mSec = t_sec;
return(ret);
}
else
{
return(0.0);
}
}
}
