| Index: java/org/libjpegturbo/turbojpeg/TJScalingFactor.java
|
| diff --git a/java/org/libjpegturbo/turbojpeg/TJScalingFactor.java b/java/org/libjpegturbo/turbojpeg/TJScalingFactor.java
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..ddb1d75a845f3de63d2ed559d9fdc5de74fc0697
|
| --- /dev/null
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| +++ b/java/org/libjpegturbo/turbojpeg/TJScalingFactor.java
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| @@ -0,0 +1,104 @@
|
| +/*
|
| + * Copyright (C)2011 D. R. Commander. All Rights Reserved.
|
| + * Copyright (C)2015 Viktor Szathmáry. All Rights Reserved.
|
| + *
|
| + * Redistribution and use in source and binary forms, with or without
|
| + * modification, are permitted provided that the following conditions are met:
|
| + *
|
| + * - Redistributions of source code must retain the above copyright notice,
|
| + * this list of conditions and the following disclaimer.
|
| + * - Redistributions in binary form must reproduce the above copyright notice,
|
| + * this list of conditions and the following disclaimer in the documentation
|
| + * and/or other materials provided with the distribution.
|
| + * - Neither the name of the libjpeg-turbo Project nor the names of its
|
| + * contributors may be used to endorse or promote products derived from this
|
| + * software without specific prior written permission.
|
| + *
|
| + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
|
| + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
|
| + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
| + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
| + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
| + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
| + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
| + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
| + * POSSIBILITY OF SUCH DAMAGE.
|
| + */
|
| +
|
| +package org.libjpegturbo.turbojpeg;
|
| +
|
| +/**
|
| + * Fractional scaling factor
|
| + */
|
| +public class TJScalingFactor {
|
| +
|
| + public TJScalingFactor(int num, int denom) {
|
| + if (num < 1 || denom < 1)
|
| + throw new IllegalArgumentException("Numerator and denominator must be >= 1");
|
| + this.num = num;
|
| + this.denom = denom;
|
| + }
|
| +
|
| + /**
|
| + * Returns numerator
|
| + *
|
| + * @return numerator
|
| + */
|
| + public int getNum() {
|
| + return num;
|
| + }
|
| +
|
| + /**
|
| + * Returns denominator
|
| + *
|
| + * @return denominator
|
| + */
|
| + public int getDenom() {
|
| + return denom;
|
| + }
|
| +
|
| + /**
|
| + * Returns the scaled value of <code>dimension</code>. This function
|
| + * performs the integer equivalent of
|
| + * <code>ceil(dimension * scalingFactor)</code>.
|
| + *
|
| + * @return the scaled value of <code>dimension</code>.
|
| + */
|
| + public int getScaled(int dimension) {
|
| + return (dimension * num + denom - 1) / denom;
|
| + }
|
| +
|
| + /**
|
| + * Returns true or false, depending on whether this instance and
|
| + * <code>other</code> have the same numerator and denominator.
|
| + *
|
| + * @return true or false, depending on whether this instance and
|
| + * <code>other</code> have the same numerator and denominator.
|
| + */
|
| + public boolean equals(TJScalingFactor other) {
|
| + return this.num == other.num && this.denom == other.denom;
|
| + }
|
| +
|
| + /**
|
| + * Returns true or false, depending on whether this instance is equal to
|
| + * 1/1.
|
| + *
|
| + * @return true or false, depending on whether this instance is equal to
|
| + * 1/1.
|
| + */
|
| + public boolean isOne() {
|
| + return num == 1 && denom == 1;
|
| + }
|
| +
|
| + /**
|
| + * Numerator
|
| + */
|
| + private int num = 1;
|
| +
|
| + /**
|
| + * Denominator
|
| + */
|
| + private int denom = 1;
|
| +}
|
|
|