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 VibratoPointIteratorBySec(VsqFileEx vsq,
VibratoBPList rate,
int start_rate,
VibratoBPList depth,
int start_depth,
int clock_start,
int clock_width,
float sec_resolution)
{
this.vsq = vsq;
this.rate = rate;
this.start_rate = start_rate;
this.depth = depth;
this.start_depth = start_depth;
this.clock_start = clock_start;
this.clock_width = clock_width;
this.sec_resolution = sec_resolution;
sec0 = vsq.getSecFromClock(clock_start);
sec1 = vsq.getSecFromClock(clock_start + clock_width);
count = (int)((sec1 - sec0) / sec_resolution);
phase = 0;
start_rate = rate.getValue(0.0f, start_rate);
start_depth = depth.getValue(0.0f, start_depth);
amplitude = start_depth * 2.5f / 127.0f / 2.0f; // ビブラートの振幅。
period = getPeriodFromRate(start_rate); //ビブラートの周期、秒
omega = (float)(2.0 * Math.PI / period); // 角速度(rad/sec)
sec = sec0;
fadewidth = (float)(sec1 - sec0) * 0.2f;
}
public PointD next()
{
if (first)
{
i = 0;
first = false;
return(new PointD(sec0, 0));
}
else
{
i++;
if (i < count)
{
double t_sec = sec0 + sec_resolution * i;
double clock = vsq.getClockFromSec(t_sec);
if (sec0 <= t_sec && t_sec <= sec0 + fadewidth)
{
amplitude *= (float)(t_sec - sec0) / fadewidth;
}
if (sec1 - fadewidth <= t_sec && t_sec <= sec1)
{
amplitude *= (float)(sec1 - t_sec) / fadewidth;
}
phase += omega * (t_sec - sec);
PointD ret = new PointD(t_sec, amplitude * Math.Sin(phase));
float v = (float)(clock - clock_start) / (float)clock_width;
int r = rate.getValue(v, start_rate);
int d = depth.getValue(v, start_depth);
amplitude = d * 2.5f / 127.0f / 2.0f;
period = getPeriodFromRate(r);
omega = (float)(2.0 * Math.PI / period);
sec = t_sec;
return(ret);
}
else
{
return(new PointD());
}
}
}
