Edit C:\Program Files\Java\jdk1.8.0_121\com\sun\pisces\RendererBase.java

/*
 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package com.sun.pisces;

public final class RendererBase {

/**
     * @defgroup CompositingRules Compositing rules supported by PISCES
     * When drawing two objects to one pixel area, there are several possibilities
     * how composite color is made of source and destination contributions.
     * Objects can overlap pixel fully and/or partialy. One object could be above
     * the second one and they both can be partialy or fully transparent (alpha).
     * The way, we count composite color and alpha from theirs contributions is
     * called compositing rule (Porter-Duff).
     * @def COMPOSITE_CLEAR
     * @ingroup CompositingRules
     * Compositing rule COMPOSITE_CLEAR. This rule applied to destination pixel sets
     * its color to 0x00000000 - transparent black - regardless to source color.
     * @see setCompositeRule(int), setComposite(int, float)
     * @def COMPOSITE_SRC
     * @ingroup CompositingRules
     * Compositing rule COMPOSITE_SRC. This rule applied to destination pixel sets
     * its color to source color - regardless to previous color of destination
     * pixel.
     * @see setCompositeRule(int), setComposite(int, float)
     * @def COMPOSITE_SRC_OVER
     * @ingroup CompositingRules
     * Compositing rule COMPOSITE_SRC_OVER. This rule is kind of intuitive. When we
     * look through transparent green glass bottle at some object, we can see
     * mixture of glass and objects colors. Composite color is alpha-weigth average
     * of source and destination.
     * @see setCompositeRule(int), PiscesRenderer.setComposite(int, float)
     */
    public static final int COMPOSITE_CLEAR    = 0;
    public static final int COMPOSITE_SRC      = 1;
    public static final int COMPOSITE_SRC_OVER = 2;

/**
     * Constant indicating 8/8/8/8 ARGB alpha-premultiplied pixel data stored
     * in a <code>int</code> array.
     */
    public static final int TYPE_INT_ARGB_PRE = 1;

public static final int IMAGE_MODE_NORMAL = 1;
    public static final int IMAGE_MODE_MULTIPLY = 2;

public static final int IMAGE_FRAC_EDGE_KEEP = 0;
    public static final int IMAGE_FRAC_EDGE_PAD  = 1;
    public static final int IMAGE_FRAC_EDGE_TRIM = 2;
}

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