// Return: Ture if end.
public bool Update(float[] aSoundBuffer, int aChannels, int aSampleRate)
{
SoundTime PositionPre = Position;
Position += GetOneSample(aSampleRate);
Elapsed += GetOneSample(aSampleRate);
if (isLoop == true)
{
if (loop.length.sample > 0)
{
if (PositionPre.sample < loop.end.sample + 1 && Position.sample >= loop.end.sample + 1)
{
Position = new SoundTime(PositionPre.sampleRate, Position.sample - (loop.end.sample + 1 - loop.start.sample));
}
else if (Position.sample >= waveform.format.samples)
{
Position = new SoundTime(Position.sampleRate, Position.sample - waveform.format.samples);
}
}
else
{
if (Position.sample >= waveform.format.samples)
{
Position = new SoundTime(Position.sampleRate, PositionPre.sample - waveform.format.samples);
}
}
}
if (Position.sample + 1 < waveform.format.samples)
{
for (int i = 0; i < aChannels; i++)
{
aSoundBuffer[i] = MeanInterpolation.Calculate(waveform, i, Position.sample);
}
}
else if (Position.sample < waveform.format.samples)
{
for (int i = 0; i < aChannels; i++)
{
if (loop.length.sample > 0)
{
aSoundBuffer[i] = MeanInterpolation.Calculate(waveform, i, Position.sample, loop.start.sample);
}
else
{
aSoundBuffer[i] = waveform.reader.GetSample(i, ( int )Position.sample);
}
}
}
else // End position.
{
return(true);
}
return(false);
}
public void GetEnvelope(double[] aBufer, double aAddSamples, ref GeneratorEnvelope aGeneratorEnvelope)
{
if (( int )aGeneratorEnvelope.samplePosition + 1 < aGeneratorEnvelope.waveform.format.samples)
{
aBufer[0] = MeanInterpolation.Calculate(aGeneratorEnvelope.waveform, aGeneratorEnvelope.samplePosition, 0);
aBufer[1] = MeanInterpolation.Calculate(aGeneratorEnvelope.waveform, aGeneratorEnvelope.samplePosition, 1);
}
// To Be Commented.
// ループエンドまでは再生する。
else if (( int )aGeneratorEnvelope.samplePosition >= aGeneratorEnvelope.soundfont.soundinfo.loopEnd && aGeneratorEnvelope.soundfont.soundinfo.loopMode == true)
{
// To Be Commented.
// なぜ"loopStart + 1"になるのか確認する.
aBufer[0] = MeanInterpolation.Calculate(aGeneratorEnvelope.waveform, aGeneratorEnvelope.samplePosition, aGeneratorEnvelope.soundfont.soundinfo.loopStart + 1, 0);
aBufer[1] = MeanInterpolation.Calculate(aGeneratorEnvelope.waveform, aGeneratorEnvelope.samplePosition, aGeneratorEnvelope.soundfont.soundinfo.loopStart + 1, 1);
}
AddSamplePoint(aAddSamples, ref aGeneratorEnvelope);
}
public void Update(float[] aSoundBuffer, int aChannels, int aSampleRate)
{
LoopInformation lLoop = music.Loop[loopNumber1][loopNumber2];
if (lLoop.start.sample != 0 && lLoop.end.sample != 0 && ( int )timePosition.sample > lLoop.end.sample)
{
Logger.LogDebug("Start:" + lLoop.start.sample + ", End:" + lLoop.end.sample);
double diff = timePosition.sample % 1.0d;
timePosition.sample = ( int )lLoop.start.sample + diff;
}
if (( int )timePosition.sample + 1 < music.SampleLength)
{
for (int i = 0; i < aChannels; i++)
{
aSoundBuffer[i] = MeanInterpolation.Calculate(music, i, timePosition.sample);
}
}
else if (( int )timePosition.sample < music.SampleLength)
{
for (int i = 0; i < aChannels; i++)
{
aSoundBuffer[i] = MeanInterpolation.Calculate(music, i, timePosition.sample, ( int )lLoop.start.sample);
}
}
else
{
timePosition.sample = 0.0d;
}
if (timePosition.sample == 1)
{
Logger.LogDebug("Start:" + aSoundBuffer[0]);
}
timePosition.sample += ( double )music.SampleRate / ( double )aSampleRate;
timeElapsed.sample += ( double )music.SampleRate / ( double )aSampleRate;
}
