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/*
* Copyright 2010 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.data;
/**
* Abstract base class for envelopes and samples that adds sustain and release loops.
*
* @author Phil Burk (C) 2010 Mobileer Inc
*/
public abstract class SequentialDataCommon implements SequentialData {
protected int numFrames;
protected int maxFrames;
private int sustainBegin = -1;
private int sustainEnd = -1;
private int releaseBegin = -1;
private int releaseEnd = -1;
@Override
public abstract void writeDouble(int index, double value);
@Override
public abstract double readDouble(int index);
@Override
public abstract double getRateScaler(int index, double synthesisRate);
@Override
public abstract int getChannelsPerFrame();
/**
* @return Maximum number of frames of data.
*/
public int getMaxFrames() {
return maxFrames;
}
/**
* Set number of frames of data. Input will be clipped to maxFrames. This is useful when
* changing the contents of a sample or envelope.
*/
public void setNumFrames(int numFrames) {
if (numFrames > maxFrames)
numFrames = maxFrames;
this.numFrames = numFrames;
}
@Override
public int getNumFrames() {
return numFrames;
}
// JavaDocs will be copied from SequentialData
@Override
public int getSustainBegin() {
return this.sustainBegin;
}
@Override
public int getSustainEnd() {
return this.sustainEnd;
}
@Override
public int getReleaseBegin() {
return this.releaseBegin;
}
@Override
public int getReleaseEnd() {
return this.releaseEnd;
}
public void setSustainBegin(int sustainBegin) {
this.sustainBegin = sustainBegin;
}
/**
* SustainEnd value is the frame index of the frame just past the end of the loop. The number of
* frames included in the loop is (SustainEnd - SustainBegin).
*
* @param sustainEnd
*/
public void setSustainEnd(int sustainEnd) {
this.sustainEnd = sustainEnd;
}
public void setReleaseBegin(int releaseBegin) {
this.releaseBegin = releaseBegin;
}
/**
* ReleaseEnd value is the frame index of the frame just past the end of the loop. The number of
* frames included in the loop is (ReleaseEnd - ReleaseBegin).
*
* @param releaseEnd
*/
public void setReleaseEnd(int releaseEnd) {
this.releaseEnd = releaseEnd;
}
}
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