com.google.gwt.typedarrays.server.Uint8ClampedArrayImpl Maven / Gradle / Ivy
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/*
* Copyright 2012 Google 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.google.gwt.typedarrays.server;
import com.google.gwt.typedarrays.shared.ArrayBuffer;
import com.google.gwt.typedarrays.shared.Uint8ClampedArray;
/**
* Pure Java implementation of {@link Uint8ClampedArray}.
*/
public final class Uint8ClampedArrayImpl extends Uint8ArrayImpl implements Uint8ClampedArray {
/**
* @param buffer
* @param byteOffset
* @param byteLength
*/
public Uint8ClampedArrayImpl(ArrayBuffer buffer, int byteOffset, int byteLength) {
super(buffer, byteOffset, byteLength);
}
@Override
public void set(int index, int value) {
super.set(index, Math.max(0, Math.min(value, 255)));
}
@Override
public Uint8ClampedArray subarray(int begin) {
int count = byteLength() - byteOffset();
return subarray(begin, count);
}
@Override
public Uint8ClampedArray subarray(int begin, int end) {
int count = byteLength() - byteOffset();
if (begin < 0) {
begin += count;
if (begin < 0) {
begin = 0;
}
} else if (begin > count) {
begin = count;
}
if (end < 0) {
end += count;
if (end < 0) {
end = 0;
}
} else if (end > count) {
end = count;
}
if (end < begin) {
end = begin;
}
return new Uint8ClampedArrayImpl(buffer(), begin, end);
}
}