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/*
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* Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.java2d.marlin;
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import java.awt.BasicStroke;
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import java.awt.Shape;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Path2D;
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import java.awt.geom.PathIterator;
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import java.security.AccessController;
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import static sun.java2d.marlin.MarlinUtils.logInfo;
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import sun.java2d.ReentrantContextProvider;
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import sun.java2d.ReentrantContextProviderCLQ;
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import sun.java2d.ReentrantContextProviderTL;
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import sun.java2d.pipe.AATileGenerator;
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import sun.java2d.pipe.Region;
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import sun.java2d.pipe.RenderingEngine;
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import sun.security.action.GetPropertyAction;
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/**
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* Marlin RendererEngine implementation (derived from Pisces)
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*/
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public final class DMarlinRenderingEngine extends RenderingEngine
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implements MarlinConst
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{
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private static enum NormMode {
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ON_WITH_AA {
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@Override
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PathIterator getNormalizingPathIterator(final DRendererContext rdrCtx,
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final PathIterator src)
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{
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// NormalizingPathIterator NearestPixelCenter:
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return rdrCtx.nPCPathIterator.init(src);
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}
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},
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ON_NO_AA{
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@Override
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PathIterator getNormalizingPathIterator(final DRendererContext rdrCtx,
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final PathIterator src)
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{
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// NearestPixel NormalizingPathIterator:
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return rdrCtx.nPQPathIterator.init(src);
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}
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},
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OFF{
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@Override
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PathIterator getNormalizingPathIterator(final DRendererContext rdrCtx,
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final PathIterator src)
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{
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// return original path iterator if normalization is disabled:
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return src;
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}
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};
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abstract PathIterator getNormalizingPathIterator(DRendererContext rdrCtx,
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PathIterator src);
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}
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private static final float MIN_PEN_SIZE = 1.0f / NORM_SUBPIXELS;
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static final double UPPER_BND = Float.MAX_VALUE / 2.0d;
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static final double LOWER_BND = -UPPER_BND;
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/**
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* Public constructor
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*/
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public DMarlinRenderingEngine() {
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super();
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logSettings(DMarlinRenderingEngine.class.getName());
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}
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/**
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* Create a widened path as specified by the parameters.
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* <p>
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* The specified {@code src} {@link Shape} is widened according
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* to the specified attribute parameters as per the
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* {@link BasicStroke} specification.
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*
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* @param src the source path to be widened
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* @param width the width of the widened path as per {@code BasicStroke}
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* @param caps the end cap decorations as per {@code BasicStroke}
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* @param join the segment join decorations as per {@code BasicStroke}
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* @param miterlimit the miter limit as per {@code BasicStroke}
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* @param dashes the dash length array as per {@code BasicStroke}
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* @param dashphase the initial dash phase as per {@code BasicStroke}
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* @return the widened path stored in a new {@code Shape} object
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* @since 1.7
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*/
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@Override
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public Shape createStrokedShape(Shape src,
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float width,
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int caps,
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int join,
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float miterlimit,
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float[] dashes,
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float dashphase)
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{
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final DRendererContext rdrCtx = getRendererContext();
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try {
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// initialize a large copyable Path2D to avoid a lot of array growing:
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final Path2D.Double p2d = rdrCtx.getPath2D();
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strokeTo(rdrCtx,
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src,
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null,
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width,
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NormMode.OFF,
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caps,
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join,
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miterlimit,
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dashes,
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dashphase,
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rdrCtx.transformerPC2D.wrapPath2d(p2d)
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);
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// Use Path2D copy constructor (trim)
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return new Path2D.Double(p2d);
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} finally {
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// recycle the DRendererContext instance
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returnRendererContext(rdrCtx);
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}
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}
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/**
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* Sends the geometry for a widened path as specified by the parameters
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* to the specified consumer.
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* <p>
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* The specified {@code src} {@link Shape} is widened according
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* to the parameters specified by the {@link BasicStroke} object.
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* Adjustments are made to the path as appropriate for the
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* {@link java.awt.RenderingHints#VALUE_STROKE_NORMALIZE} hint if the
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* {@code normalize} boolean parameter is true.
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* Adjustments are made to the path as appropriate for the
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* {@link java.awt.RenderingHints#VALUE_ANTIALIAS_ON} hint if the
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* {@code antialias} boolean parameter is true.
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* <p>
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* The geometry of the widened path is forwarded to the indicated
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* {@link DPathConsumer2D} object as it is calculated.
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*
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* @param src the source path to be widened
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* @param bs the {@code BasicSroke} object specifying the
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* decorations to be applied to the widened path
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* @param normalize indicates whether stroke normalization should
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* be applied
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* @param antialias indicates whether or not adjustments appropriate
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* to antialiased rendering should be applied
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* @param consumer the {@code DPathConsumer2D} instance to forward
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* the widened geometry to
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* @since 1.7
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*/
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@Override
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public void strokeTo(Shape src,
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AffineTransform at,
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BasicStroke bs,
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boolean thin,
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boolean normalize,
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boolean antialias,
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final sun.awt.geom.PathConsumer2D consumer)
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{
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final NormMode norm = (normalize) ?
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((antialias) ? NormMode.ON_WITH_AA : NormMode.ON_NO_AA)
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: NormMode.OFF;
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final DRendererContext rdrCtx = getRendererContext();
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try {
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strokeTo(rdrCtx, src, at, bs, thin, norm, antialias,
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rdrCtx.p2dAdapter.init(consumer));
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} finally {
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// recycle the DRendererContext instance
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returnRendererContext(rdrCtx);
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}
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}
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final void strokeTo(final DRendererContext rdrCtx,
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Shape src,
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AffineTransform at,
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BasicStroke bs,
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boolean thin,
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NormMode normalize,
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boolean antialias,
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DPathConsumer2D pc2d)
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{
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double lw;
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if (thin) {
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if (antialias) {
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lw = userSpaceLineWidth(at, MIN_PEN_SIZE);
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} else {
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lw = userSpaceLineWidth(at, 1.0d);
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}
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} else {
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lw = bs.getLineWidth();
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}
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strokeTo(rdrCtx,
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src,
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at,
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lw,
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normalize,
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bs.getEndCap(),
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bs.getLineJoin(),
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bs.getMiterLimit(),
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bs.getDashArray(),
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bs.getDashPhase(),
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pc2d);
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}
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private final double userSpaceLineWidth(AffineTransform at, double lw) {
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double widthScale;
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if (at == null) {
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widthScale = 1.0d;
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} else if ((at.getType() & (AffineTransform.TYPE_GENERAL_TRANSFORM |
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AffineTransform.TYPE_GENERAL_SCALE)) != 0) {
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widthScale = Math.sqrt(at.getDeterminant());
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} else {
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// First calculate the "maximum scale" of this transform.
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double A = at.getScaleX(); // m00
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double C = at.getShearX(); // m01
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double B = at.getShearY(); // m10
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double D = at.getScaleY(); // m11
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/*
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* Given a 2 x 2 affine matrix [ A B ] such that
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* [ C D ]
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* v' = [x' y'] = [Ax + Cy, Bx + Dy], we want to
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* find the maximum magnitude (norm) of the vector v'
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* with the constraint (x^2 + y^2 = 1).
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* The equation to maximize is
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* |v'| = sqrt((Ax+Cy)^2+(Bx+Dy)^2)
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* or |v'| = sqrt((AA+BB)x^2 + 2(AC+BD)xy + (CC+DD)y^2).
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* Since sqrt is monotonic we can maximize |v'|^2
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* instead and plug in the substitution y = sqrt(1 - x^2).
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* Trigonometric equalities can then be used to get
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* rid of most of the sqrt terms.
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*/
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double EA = A*A + B*B; // x^2 coefficient
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double EB = 2.0d * (A*C + B*D); // xy coefficient
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double EC = C*C + D*D; // y^2 coefficient
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/*
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* There is a lot of calculus omitted here.
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*
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* Conceptually, in the interests of understanding the
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* terms that the calculus produced we can consider
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* that EA and EC end up providing the lengths along
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* the major axes and the hypot term ends up being an
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* adjustment for the additional length along the off-axis
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* angle of rotated or sheared ellipses as well as an
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* adjustment for the fact that the equation below
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* averages the two major axis lengths. (Notice that
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* the hypot term contains a part which resolves to the
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* difference of these two axis lengths in the absence
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* of rotation.)
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*
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* In the calculus, the ratio of the EB and (EA-EC) terms
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* ends up being the tangent of 2*theta where theta is
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* the angle that the long axis of the ellipse makes
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* with the horizontal axis. Thus, this equation is
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* calculating the length of the hypotenuse of a triangle
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* along that axis.
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*/
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double hypot = Math.sqrt(EB*EB + (EA-EC)*(EA-EC));
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// sqrt omitted, compare to squared limits below.
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double widthsquared = ((EA + EC + hypot) / 2.0d);
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widthScale = Math.sqrt(widthsquared);
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}
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return (lw / widthScale);
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}
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final void strokeTo(final DRendererContext rdrCtx,
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Shape src,
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AffineTransform at,
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double width,
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NormMode norm,
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int caps,
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int join,
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float miterlimit,
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float[] dashes,
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float dashphase,
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DPathConsumer2D pc2d)
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{
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// We use strokerat so that in Stroker and Dasher we can work only
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// with the pre-transformation coordinates. This will repeat a lot of
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// computations done in the path iterator, but the alternative is to
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// work with transformed paths and compute untransformed coordinates
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// as needed. This would be faster but I do not think the complexity
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// of working with both untransformed and transformed coordinates in
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// the same code is worth it.
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// However, if a path's width is constant after a transformation,
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// we can skip all this untransforming.
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// As pathTo() will check transformed coordinates for invalid values
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// (NaN / Infinity) to ignore such points, it is necessary to apply the
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// transformation before the path processing.
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AffineTransform strokerat = null;
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int dashLen = -1;
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boolean recycleDashes = false;
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double[] dashesD = null;
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// Ensure converting dashes to double precision:
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if (dashes != null) {
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recycleDashes = true;
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dashLen = dashes.length;
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dashesD = rdrCtx.dasher.copyDashArray(dashes);
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}
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if (at != null && !at.isIdentity()) {
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final double a = at.getScaleX();
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final double b = at.getShearX();
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final double c = at.getShearY();
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final double d = at.getScaleY();
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final double det = a * d - c * b;
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if (Math.abs(det) <= (2.0d * Double.MIN_VALUE)) {
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// this rendering engine takes one dimensional curves and turns
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// them into 2D shapes by giving them width.
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// However, if everything is to be passed through a singular
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// transformation, these 2D shapes will be squashed down to 1D
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// again so, nothing can be drawn.
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// Every path needs an initial moveTo and a pathDone. If these
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// are not there this causes a SIGSEGV in libawt.so (at the time
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// of writing of this comment (September 16, 2010)). Actually,
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// I am not sure if the moveTo is necessary to avoid the SIGSEGV
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// but the pathDone is definitely needed.
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pc2d.moveTo(0.0d, 0.0d);
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pc2d.pathDone();
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return;
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}
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// If the transform is a constant multiple of an orthogonal transformation
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// then every length is just multiplied by a constant, so we just
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// need to transform input paths to stroker and tell stroker
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// the scaled width. This condition is satisfied if
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// a*b == -c*d && a*a+c*c == b*b+d*d. In the actual check below, we
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// leave a bit of room for error.
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if (nearZero(a*b + c*d) && nearZero(a*a + c*c - (b*b + d*d))) {
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final double scale = Math.sqrt(a*a + c*c);
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if (dashesD != null) {
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for (int i = 0; i < dashLen; i++) {
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dashesD[i] *= scale;
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}
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dashphase *= scale;
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}
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width *= scale;
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// by now strokerat == null. Input paths to
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// stroker (and maybe dasher) will have the full transform at
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// applied to them and nothing will happen to the output paths.
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} else {
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strokerat = at;
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// by now strokerat == at. Input paths to
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// stroker (and maybe dasher) will have the full transform at
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// applied to them, then they will be normalized, and then
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// the inverse of *only the non translation part of at* will
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// be applied to the normalized paths. This won't cause problems
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// in stroker, because, suppose at = T*A, where T is just the
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// translation part of at, and A is the rest. T*A has already
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// been applied to Stroker/Dasher's input. Then Ainv will be
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// applied. Ainv*T*A is not equal to T, but it is a translation,
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// which means that none of stroker's assumptions about its
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// input will be violated. After all this, A will be applied
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// to stroker's output.
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}
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} else {
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// either at is null or it's the identity. In either case
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// we don't transform the path.
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at = null;
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}
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if (USE_SIMPLIFIER) {
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// Use simplifier after stroker before Renderer
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// to remove collinear segments (notably due to cap square)
|
|
405 |
pc2d = rdrCtx.simplifier.init(pc2d);
|
|
406 |
}
|
|
407 |
|
|
408 |
final DTransformingPathConsumer2D transformerPC2D = rdrCtx.transformerPC2D;
|
|
409 |
pc2d = transformerPC2D.deltaTransformConsumer(pc2d, strokerat);
|
|
410 |
|
|
411 |
pc2d = rdrCtx.stroker.init(pc2d, width, caps, join, miterlimit);
|
|
412 |
|
|
413 |
if (dashesD != null) {
|
|
414 |
pc2d = rdrCtx.dasher.init(pc2d, dashesD, dashLen, dashphase,
|
|
415 |
recycleDashes);
|
|
416 |
}
|
|
417 |
pc2d = transformerPC2D.inverseDeltaTransformConsumer(pc2d, strokerat);
|
|
418 |
|
|
419 |
final PathIterator pi = norm.getNormalizingPathIterator(rdrCtx,
|
|
420 |
src.getPathIterator(at));
|
|
421 |
|
|
422 |
pathTo(rdrCtx, pi, pc2d);
|
|
423 |
|
|
424 |
/*
|
|
425 |
* Pipeline seems to be:
|
|
426 |
* shape.getPathIterator(at)
|
|
427 |
* -> (NormalizingPathIterator)
|
|
428 |
* -> (inverseDeltaTransformConsumer)
|
|
429 |
* -> (Dasher)
|
|
430 |
* -> Stroker
|
|
431 |
* -> (deltaTransformConsumer)
|
|
432 |
*
|
|
433 |
* -> (CollinearSimplifier) to remove redundant segments
|
|
434 |
*
|
|
435 |
* -> pc2d = Renderer (bounding box)
|
|
436 |
*/
|
|
437 |
}
|
|
438 |
|
|
439 |
private static boolean nearZero(final double num) {
|
|
440 |
return Math.abs(num) < 2.0d * Math.ulp(num);
|
|
441 |
}
|
|
442 |
|
|
443 |
abstract static class NormalizingPathIterator implements PathIterator {
|
|
444 |
|
|
445 |
private PathIterator src;
|
|
446 |
|
|
447 |
// the adjustment applied to the current position.
|
|
448 |
private double curx_adjust, cury_adjust;
|
|
449 |
// the adjustment applied to the last moveTo position.
|
|
450 |
private double movx_adjust, movy_adjust;
|
|
451 |
|
|
452 |
private final double[] tmp;
|
|
453 |
|
|
454 |
NormalizingPathIterator(final double[] tmp) {
|
|
455 |
this.tmp = tmp;
|
|
456 |
}
|
|
457 |
|
|
458 |
final NormalizingPathIterator init(final PathIterator src) {
|
|
459 |
this.src = src;
|
|
460 |
return this; // fluent API
|
|
461 |
}
|
|
462 |
|
|
463 |
/**
|
|
464 |
* Disposes this path iterator:
|
|
465 |
* clean up before reusing this instance
|
|
466 |
*/
|
|
467 |
final void dispose() {
|
|
468 |
// free source PathIterator:
|
|
469 |
this.src = null;
|
|
470 |
}
|
|
471 |
|
|
472 |
@Override
|
|
473 |
public final int currentSegment(final double[] coords) {
|
|
474 |
int lastCoord;
|
|
475 |
final int type = src.currentSegment(coords);
|
|
476 |
|
|
477 |
switch(type) {
|
|
478 |
case PathIterator.SEG_MOVETO:
|
|
479 |
case PathIterator.SEG_LINETO:
|
|
480 |
lastCoord = 0;
|
|
481 |
break;
|
|
482 |
case PathIterator.SEG_QUADTO:
|
|
483 |
lastCoord = 2;
|
|
484 |
break;
|
|
485 |
case PathIterator.SEG_CUBICTO:
|
|
486 |
lastCoord = 4;
|
|
487 |
break;
|
|
488 |
case PathIterator.SEG_CLOSE:
|
|
489 |
// we don't want to deal with this case later. We just exit now
|
|
490 |
curx_adjust = movx_adjust;
|
|
491 |
cury_adjust = movy_adjust;
|
|
492 |
return type;
|
|
493 |
default:
|
|
494 |
throw new InternalError("Unrecognized curve type");
|
|
495 |
}
|
|
496 |
|
|
497 |
// normalize endpoint
|
|
498 |
double coord, x_adjust, y_adjust;
|
|
499 |
|
|
500 |
coord = coords[lastCoord];
|
|
501 |
x_adjust = normCoord(coord); // new coord
|
|
502 |
coords[lastCoord] = x_adjust;
|
|
503 |
x_adjust -= coord;
|
|
504 |
|
|
505 |
coord = coords[lastCoord + 1];
|
|
506 |
y_adjust = normCoord(coord); // new coord
|
|
507 |
coords[lastCoord + 1] = y_adjust;
|
|
508 |
y_adjust -= coord;
|
|
509 |
|
|
510 |
// now that the end points are done, normalize the control points
|
|
511 |
switch(type) {
|
|
512 |
case PathIterator.SEG_MOVETO:
|
|
513 |
movx_adjust = x_adjust;
|
|
514 |
movy_adjust = y_adjust;
|
|
515 |
break;
|
|
516 |
case PathIterator.SEG_LINETO:
|
|
517 |
break;
|
|
518 |
case PathIterator.SEG_QUADTO:
|
|
519 |
coords[0] += (curx_adjust + x_adjust) / 2.0d;
|
|
520 |
coords[1] += (cury_adjust + y_adjust) / 2.0d;
|
|
521 |
break;
|
|
522 |
case PathIterator.SEG_CUBICTO:
|
|
523 |
coords[0] += curx_adjust;
|
|
524 |
coords[1] += cury_adjust;
|
|
525 |
coords[2] += x_adjust;
|
|
526 |
coords[3] += y_adjust;
|
|
527 |
break;
|
|
528 |
case PathIterator.SEG_CLOSE:
|
|
529 |
// handled earlier
|
|
530 |
default:
|
|
531 |
}
|
|
532 |
curx_adjust = x_adjust;
|
|
533 |
cury_adjust = y_adjust;
|
|
534 |
return type;
|
|
535 |
}
|
|
536 |
|
|
537 |
abstract double normCoord(final double coord);
|
|
538 |
|
|
539 |
@Override
|
|
540 |
public final int currentSegment(final float[] coords) {
|
|
541 |
final double[] _tmp = tmp; // dirty
|
|
542 |
int type = this.currentSegment(_tmp);
|
|
543 |
for (int i = 0; i < 6; i++) {
|
|
544 |
coords[i] = (float)_tmp[i];
|
|
545 |
}
|
|
546 |
return type;
|
|
547 |
}
|
|
548 |
|
|
549 |
@Override
|
|
550 |
public final int getWindingRule() {
|
|
551 |
return src.getWindingRule();
|
|
552 |
}
|
|
553 |
|
|
554 |
@Override
|
|
555 |
public final boolean isDone() {
|
|
556 |
if (src.isDone()) {
|
|
557 |
// Dispose this instance:
|
|
558 |
dispose();
|
|
559 |
return true;
|
|
560 |
}
|
|
561 |
return false;
|
|
562 |
}
|
|
563 |
|
|
564 |
@Override
|
|
565 |
public final void next() {
|
|
566 |
src.next();
|
|
567 |
}
|
|
568 |
|
|
569 |
static final class NearestPixelCenter
|
|
570 |
extends NormalizingPathIterator
|
|
571 |
{
|
|
572 |
NearestPixelCenter(final double[] tmp) {
|
|
573 |
super(tmp);
|
|
574 |
}
|
|
575 |
|
|
576 |
@Override
|
|
577 |
double normCoord(final double coord) {
|
|
578 |
// round to nearest pixel center
|
|
579 |
return Math.floor(coord) + 0.5d;
|
|
580 |
}
|
|
581 |
}
|
|
582 |
|
|
583 |
static final class NearestPixelQuarter
|
|
584 |
extends NormalizingPathIterator
|
|
585 |
{
|
|
586 |
NearestPixelQuarter(final double[] tmp) {
|
|
587 |
super(tmp);
|
|
588 |
}
|
|
589 |
|
|
590 |
@Override
|
|
591 |
double normCoord(final double coord) {
|
|
592 |
// round to nearest (0.25, 0.25) pixel quarter
|
|
593 |
return Math.floor(coord + 0.25d) + 0.25d;
|
|
594 |
}
|
|
595 |
}
|
|
596 |
}
|
|
597 |
|
|
598 |
private static void pathTo(final DRendererContext rdrCtx, final PathIterator pi,
|
|
599 |
final DPathConsumer2D pc2d)
|
|
600 |
{
|
|
601 |
// mark context as DIRTY:
|
|
602 |
rdrCtx.dirty = true;
|
|
603 |
|
|
604 |
final double[] coords = rdrCtx.double6;
|
|
605 |
|
|
606 |
pathToLoop(coords, pi, pc2d);
|
|
607 |
|
|
608 |
// mark context as CLEAN:
|
|
609 |
rdrCtx.dirty = false;
|
|
610 |
}
|
|
611 |
|
|
612 |
private static void pathToLoop(final double[] coords, final PathIterator pi,
|
|
613 |
final DPathConsumer2D pc2d)
|
|
614 |
{
|
|
615 |
// ported from DuctusRenderingEngine.feedConsumer() but simplified:
|
|
616 |
// - removed skip flag = !subpathStarted
|
|
617 |
// - removed pathClosed (ie subpathStarted not set to false)
|
|
618 |
boolean subpathStarted = false;
|
|
619 |
|
|
620 |
for (; !pi.isDone(); pi.next()) {
|
|
621 |
switch (pi.currentSegment(coords)) {
|
|
622 |
case PathIterator.SEG_MOVETO:
|
|
623 |
/* Checking SEG_MOVETO coordinates if they are out of the
|
|
624 |
* [LOWER_BND, UPPER_BND] range. This check also handles NaN
|
|
625 |
* and Infinity values. Skipping next path segment in case of
|
|
626 |
* invalid data.
|
|
627 |
*/
|
|
628 |
if (coords[0] < UPPER_BND && coords[0] > LOWER_BND &&
|
|
629 |
coords[1] < UPPER_BND && coords[1] > LOWER_BND)
|
|
630 |
{
|
|
631 |
pc2d.moveTo(coords[0], coords[1]);
|
|
632 |
subpathStarted = true;
|
|
633 |
}
|
|
634 |
break;
|
|
635 |
case PathIterator.SEG_LINETO:
|
|
636 |
/* Checking SEG_LINETO coordinates if they are out of the
|
|
637 |
* [LOWER_BND, UPPER_BND] range. This check also handles NaN
|
|
638 |
* and Infinity values. Ignoring current path segment in case
|
|
639 |
* of invalid data. If segment is skipped its endpoint
|
|
640 |
* (if valid) is used to begin new subpath.
|
|
641 |
*/
|
|
642 |
if (coords[0] < UPPER_BND && coords[0] > LOWER_BND &&
|
|
643 |
coords[1] < UPPER_BND && coords[1] > LOWER_BND)
|
|
644 |
{
|
|
645 |
if (subpathStarted) {
|
|
646 |
pc2d.lineTo(coords[0], coords[1]);
|
|
647 |
} else {
|
|
648 |
pc2d.moveTo(coords[0], coords[1]);
|
|
649 |
subpathStarted = true;
|
|
650 |
}
|
|
651 |
}
|
|
652 |
break;
|
|
653 |
case PathIterator.SEG_QUADTO:
|
|
654 |
// Quadratic curves take two points
|
|
655 |
/* Checking SEG_QUADTO coordinates if they are out of the
|
|
656 |
* [LOWER_BND, UPPER_BND] range. This check also handles NaN
|
|
657 |
* and Infinity values. Ignoring current path segment in case
|
|
658 |
* of invalid endpoints's data. Equivalent to the SEG_LINETO
|
|
659 |
* if endpoint coordinates are valid but there are invalid data
|
|
660 |
* among other coordinates
|
|
661 |
*/
|
|
662 |
if (coords[2] < UPPER_BND && coords[2] > LOWER_BND &&
|
|
663 |
coords[3] < UPPER_BND && coords[3] > LOWER_BND)
|
|
664 |
{
|
|
665 |
if (subpathStarted) {
|
|
666 |
if (coords[0] < UPPER_BND && coords[0] > LOWER_BND &&
|
|
667 |
coords[1] < UPPER_BND && coords[1] > LOWER_BND)
|
|
668 |
{
|
|
669 |
pc2d.quadTo(coords[0], coords[1],
|
|
670 |
coords[2], coords[3]);
|
|
671 |
} else {
|
|
672 |
pc2d.lineTo(coords[2], coords[3]);
|
|
673 |
}
|
|
674 |
} else {
|
|
675 |
pc2d.moveTo(coords[2], coords[3]);
|
|
676 |
subpathStarted = true;
|
|
677 |
}
|
|
678 |
}
|
|
679 |
break;
|
|
680 |
case PathIterator.SEG_CUBICTO:
|
|
681 |
// Cubic curves take three points
|
|
682 |
/* Checking SEG_CUBICTO coordinates if they are out of the
|
|
683 |
* [LOWER_BND, UPPER_BND] range. This check also handles NaN
|
|
684 |
* and Infinity values. Ignoring current path segment in case
|
|
685 |
* of invalid endpoints's data. Equivalent to the SEG_LINETO
|
|
686 |
* if endpoint coordinates are valid but there are invalid data
|
|
687 |
* among other coordinates
|
|
688 |
*/
|
|
689 |
if (coords[4] < UPPER_BND && coords[4] > LOWER_BND &&
|
|
690 |
coords[5] < UPPER_BND && coords[5] > LOWER_BND)
|
|
691 |
{
|
|
692 |
if (subpathStarted) {
|
|
693 |
if (coords[0] < UPPER_BND && coords[0] > LOWER_BND &&
|
|
694 |
coords[1] < UPPER_BND && coords[1] > LOWER_BND &&
|
|
695 |
coords[2] < UPPER_BND && coords[2] > LOWER_BND &&
|
|
696 |
coords[3] < UPPER_BND && coords[3] > LOWER_BND)
|
|
697 |
{
|
|
698 |
pc2d.curveTo(coords[0], coords[1],
|
|
699 |
coords[2], coords[3],
|
|
700 |
coords[4], coords[5]);
|
|
701 |
} else {
|
|
702 |
pc2d.lineTo(coords[4], coords[5]);
|
|
703 |
}
|
|
704 |
} else {
|
|
705 |
pc2d.moveTo(coords[4], coords[5]);
|
|
706 |
subpathStarted = true;
|
|
707 |
}
|
|
708 |
}
|
|
709 |
break;
|
|
710 |
case PathIterator.SEG_CLOSE:
|
|
711 |
if (subpathStarted) {
|
|
712 |
pc2d.closePath();
|
|
713 |
// do not set subpathStarted to false
|
|
714 |
// in case of missing moveTo() after close()
|
|
715 |
}
|
|
716 |
break;
|
|
717 |
default:
|
|
718 |
}
|
|
719 |
}
|
|
720 |
pc2d.pathDone();
|
|
721 |
}
|
|
722 |
|
|
723 |
/**
|
|
724 |
* Construct an antialiased tile generator for the given shape with
|
|
725 |
* the given rendering attributes and store the bounds of the tile
|
|
726 |
* iteration in the bbox parameter.
|
|
727 |
* The {@code at} parameter specifies a transform that should affect
|
|
728 |
* both the shape and the {@code BasicStroke} attributes.
|
|
729 |
* The {@code clip} parameter specifies the current clip in effect
|
|
730 |
* in device coordinates and can be used to prune the data for the
|
|
731 |
* operation, but the renderer is not required to perform any
|
|
732 |
* clipping.
|
|
733 |
* If the {@code BasicStroke} parameter is null then the shape
|
|
734 |
* should be filled as is, otherwise the attributes of the
|
|
735 |
* {@code BasicStroke} should be used to specify a draw operation.
|
|
736 |
* The {@code thin} parameter indicates whether or not the
|
|
737 |
* transformed {@code BasicStroke} represents coordinates smaller
|
|
738 |
* than the minimum resolution of the antialiasing rasterizer as
|
|
739 |
* specified by the {@code getMinimumAAPenWidth()} method.
|
|
740 |
* <p>
|
|
741 |
* Upon returning, this method will fill the {@code bbox} parameter
|
|
742 |
* with 4 values indicating the bounds of the iteration of the
|
|
743 |
* tile generator.
|
|
744 |
* The iteration order of the tiles will be as specified by the
|
|
745 |
* pseudo-code:
|
|
746 |
* <pre>
|
|
747 |
* for (y = bbox[1]; y < bbox[3]; y += tileheight) {
|
|
748 |
* for (x = bbox[0]; x < bbox[2]; x += tilewidth) {
|
|
749 |
* }
|
|
750 |
* }
|
|
751 |
* </pre>
|
|
752 |
* If there is no output to be rendered, this method may return
|
|
753 |
* null.
|
|
754 |
*
|
|
755 |
* @param s the shape to be rendered (fill or draw)
|
|
756 |
* @param at the transform to be applied to the shape and the
|
|
757 |
* stroke attributes
|
|
758 |
* @param clip the current clip in effect in device coordinates
|
|
759 |
* @param bs if non-null, a {@code BasicStroke} whose attributes
|
|
760 |
* should be applied to this operation
|
|
761 |
* @param thin true if the transformed stroke attributes are smaller
|
|
762 |
* than the minimum dropout pen width
|
|
763 |
* @param normalize true if the {@code VALUE_STROKE_NORMALIZE}
|
|
764 |
* {@code RenderingHint} is in effect
|
|
765 |
* @param bbox returns the bounds of the iteration
|
|
766 |
* @return the {@code AATileGenerator} instance to be consulted
|
|
767 |
* for tile coverages, or null if there is no output to render
|
|
768 |
* @since 1.7
|
|
769 |
*/
|
|
770 |
@Override
|
|
771 |
public AATileGenerator getAATileGenerator(Shape s,
|
|
772 |
AffineTransform at,
|
|
773 |
Region clip,
|
|
774 |
BasicStroke bs,
|
|
775 |
boolean thin,
|
|
776 |
boolean normalize,
|
|
777 |
int[] bbox)
|
|
778 |
{
|
|
779 |
MarlinTileGenerator ptg = null;
|
|
780 |
DRenderer r = null;
|
|
781 |
|
|
782 |
final DRendererContext rdrCtx = getRendererContext();
|
|
783 |
try {
|
|
784 |
// Test if at is identity:
|
|
785 |
final AffineTransform _at = (at != null && !at.isIdentity()) ? at
|
|
786 |
: null;
|
|
787 |
|
|
788 |
final NormMode norm = (normalize) ? NormMode.ON_WITH_AA : NormMode.OFF;
|
|
789 |
|
|
790 |
if (bs == null) {
|
|
791 |
// fill shape:
|
|
792 |
final PathIterator pi = norm.getNormalizingPathIterator(rdrCtx,
|
|
793 |
s.getPathIterator(_at));
|
|
794 |
|
|
795 |
// note: Winding rule may be EvenOdd ONLY for fill operations !
|
|
796 |
r = rdrCtx.renderer.init(clip.getLoX(), clip.getLoY(),
|
|
797 |
clip.getWidth(), clip.getHeight(),
|
|
798 |
pi.getWindingRule());
|
|
799 |
|
|
800 |
// TODO: subdivide quad/cubic curves into monotonic curves ?
|
|
801 |
pathTo(rdrCtx, pi, r);
|
|
802 |
} else {
|
|
803 |
// draw shape with given stroke:
|
|
804 |
r = rdrCtx.renderer.init(clip.getLoX(), clip.getLoY(),
|
|
805 |
clip.getWidth(), clip.getHeight(),
|
|
806 |
PathIterator.WIND_NON_ZERO);
|
|
807 |
|
|
808 |
strokeTo(rdrCtx, s, _at, bs, thin, norm, true, r);
|
|
809 |
}
|
|
810 |
if (r.endRendering()) {
|
|
811 |
ptg = rdrCtx.ptg.init();
|
|
812 |
ptg.getBbox(bbox);
|
|
813 |
// note: do not returnRendererContext(rdrCtx)
|
|
814 |
// as it will be called later by MarlinTileGenerator.dispose()
|
|
815 |
r = null;
|
|
816 |
}
|
|
817 |
} finally {
|
|
818 |
if (r != null) {
|
|
819 |
// dispose renderer and recycle the RendererContext instance:
|
|
820 |
r.dispose();
|
|
821 |
}
|
|
822 |
}
|
|
823 |
|
|
824 |
// Return null to cancel AA tile generation (nothing to render)
|
|
825 |
return ptg;
|
|
826 |
}
|
|
827 |
|
|
828 |
@Override
|
|
829 |
public final AATileGenerator getAATileGenerator(double x, double y,
|
|
830 |
double dx1, double dy1,
|
|
831 |
double dx2, double dy2,
|
|
832 |
double lw1, double lw2,
|
|
833 |
Region clip,
|
|
834 |
int[] bbox)
|
|
835 |
{
|
|
836 |
// REMIND: Deal with large coordinates!
|
|
837 |
double ldx1, ldy1, ldx2, ldy2;
|
|
838 |
boolean innerpgram = (lw1 > 0.0d && lw2 > 0.0d);
|
|
839 |
|
|
840 |
if (innerpgram) {
|
|
841 |
ldx1 = dx1 * lw1;
|
|
842 |
ldy1 = dy1 * lw1;
|
|
843 |
ldx2 = dx2 * lw2;
|
|
844 |
ldy2 = dy2 * lw2;
|
|
845 |
x -= (ldx1 + ldx2) / 2.0d;
|
|
846 |
y -= (ldy1 + ldy2) / 2.0d;
|
|
847 |
dx1 += ldx1;
|
|
848 |
dy1 += ldy1;
|
|
849 |
dx2 += ldx2;
|
|
850 |
dy2 += ldy2;
|
|
851 |
if (lw1 > 1.0d && lw2 > 1.0d) {
|
|
852 |
// Inner parallelogram was entirely consumed by stroke...
|
|
853 |
innerpgram = false;
|
|
854 |
}
|
|
855 |
} else {
|
|
856 |
ldx1 = ldy1 = ldx2 = ldy2 = 0.0d;
|
|
857 |
}
|
|
858 |
|
|
859 |
MarlinTileGenerator ptg = null;
|
|
860 |
DRenderer r = null;
|
|
861 |
|
|
862 |
final DRendererContext rdrCtx = getRendererContext();
|
|
863 |
try {
|
|
864 |
r = rdrCtx.renderer.init(clip.getLoX(), clip.getLoY(),
|
|
865 |
clip.getWidth(), clip.getHeight(),
|
|
866 |
DRenderer.WIND_EVEN_ODD);
|
|
867 |
|
|
868 |
r.moveTo( x, y);
|
|
869 |
r.lineTo( (x+dx1), (y+dy1));
|
|
870 |
r.lineTo( (x+dx1+dx2), (y+dy1+dy2));
|
|
871 |
r.lineTo( (x+dx2), (y+dy2));
|
|
872 |
r.closePath();
|
|
873 |
|
|
874 |
if (innerpgram) {
|
|
875 |
x += ldx1 + ldx2;
|
|
876 |
y += ldy1 + ldy2;
|
|
877 |
dx1 -= 2.0d * ldx1;
|
|
878 |
dy1 -= 2.0d * ldy1;
|
|
879 |
dx2 -= 2.0d * ldx2;
|
|
880 |
dy2 -= 2.0d * ldy2;
|
|
881 |
r.moveTo( x, y);
|
|
882 |
r.lineTo( (x+dx1), (y+dy1));
|
|
883 |
r.lineTo( (x+dx1+dx2), (y+dy1+dy2));
|
|
884 |
r.lineTo( (x+dx2), (y+dy2));
|
|
885 |
r.closePath();
|
|
886 |
}
|
|
887 |
r.pathDone();
|
|
888 |
|
|
889 |
if (r.endRendering()) {
|
|
890 |
ptg = rdrCtx.ptg.init();
|
|
891 |
ptg.getBbox(bbox);
|
|
892 |
// note: do not returnRendererContext(rdrCtx)
|
|
893 |
// as it will be called later by MarlinTileGenerator.dispose()
|
|
894 |
r = null;
|
|
895 |
}
|
|
896 |
} finally {
|
|
897 |
if (r != null) {
|
|
898 |
// dispose renderer and recycle the RendererContext instance:
|
|
899 |
r.dispose();
|
|
900 |
}
|
|
901 |
}
|
|
902 |
|
|
903 |
// Return null to cancel AA tile generation (nothing to render)
|
|
904 |
return ptg;
|
|
905 |
}
|
|
906 |
|
|
907 |
/**
|
|
908 |
* Returns the minimum pen width that the antialiasing rasterizer
|
|
909 |
* can represent without dropouts occuring.
|
|
910 |
* @since 1.7
|
|
911 |
*/
|
|
912 |
@Override
|
|
913 |
public float getMinimumAAPenSize() {
|
|
914 |
return MIN_PEN_SIZE;
|
|
915 |
}
|
|
916 |
|
|
917 |
static {
|
|
918 |
if (PathIterator.WIND_NON_ZERO != DRenderer.WIND_NON_ZERO ||
|
|
919 |
PathIterator.WIND_EVEN_ODD != DRenderer.WIND_EVEN_ODD ||
|
|
920 |
BasicStroke.JOIN_MITER != DStroker.JOIN_MITER ||
|
|
921 |
BasicStroke.JOIN_ROUND != DStroker.JOIN_ROUND ||
|
|
922 |
BasicStroke.JOIN_BEVEL != DStroker.JOIN_BEVEL ||
|
|
923 |
BasicStroke.CAP_BUTT != DStroker.CAP_BUTT ||
|
|
924 |
BasicStroke.CAP_ROUND != DStroker.CAP_ROUND ||
|
|
925 |
BasicStroke.CAP_SQUARE != DStroker.CAP_SQUARE)
|
|
926 |
{
|
|
927 |
throw new InternalError("mismatched renderer constants");
|
|
928 |
}
|
|
929 |
}
|
|
930 |
|
|
931 |
// --- DRendererContext handling ---
|
|
932 |
// use ThreadLocal or ConcurrentLinkedQueue to get one DRendererContext
|
|
933 |
private static final boolean USE_THREAD_LOCAL;
|
|
934 |
|
|
935 |
// reference type stored in either TL or CLQ
|
|
936 |
static final int REF_TYPE;
|
|
937 |
|
|
938 |
// Per-thread DRendererContext
|
|
939 |
private static final ReentrantContextProvider<DRendererContext> RDR_CTX_PROVIDER;
|
|
940 |
|
|
941 |
// Static initializer to use TL or CLQ mode
|
|
942 |
static {
|
|
943 |
USE_THREAD_LOCAL = MarlinProperties.isUseThreadLocal();
|
|
944 |
|
|
945 |
// Soft reference by default:
|
|
946 |
final String refType = AccessController.doPrivileged(
|
|
947 |
new GetPropertyAction("sun.java2d.renderer.useRef",
|
|
948 |
"soft"));
|
|
949 |
|
|
950 |
// Java 1.6 does not support strings in switch:
|
|
951 |
if ("hard".equalsIgnoreCase(refType)) {
|
|
952 |
REF_TYPE = ReentrantContextProvider.REF_HARD;
|
|
953 |
} else if ("weak".equalsIgnoreCase(refType)) {
|
|
954 |
REF_TYPE = ReentrantContextProvider.REF_WEAK;
|
|
955 |
} else {
|
|
956 |
REF_TYPE = ReentrantContextProvider.REF_SOFT;
|
|
957 |
}
|
|
958 |
|
|
959 |
if (USE_THREAD_LOCAL) {
|
|
960 |
RDR_CTX_PROVIDER = new ReentrantContextProviderTL<DRendererContext>(REF_TYPE)
|
|
961 |
{
|
|
962 |
@Override
|
|
963 |
protected DRendererContext newContext() {
|
|
964 |
return DRendererContext.createContext();
|
|
965 |
}
|
|
966 |
};
|
|
967 |
} else {
|
|
968 |
RDR_CTX_PROVIDER = new ReentrantContextProviderCLQ<DRendererContext>(REF_TYPE)
|
|
969 |
{
|
|
970 |
@Override
|
|
971 |
protected DRendererContext newContext() {
|
|
972 |
return DRendererContext.createContext();
|
|
973 |
}
|
|
974 |
};
|
|
975 |
}
|
|
976 |
}
|
|
977 |
|
|
978 |
private static boolean SETTINGS_LOGGED = !ENABLE_LOGS;
|
|
979 |
|
|
980 |
private static void logSettings(final String reClass) {
|
|
981 |
// log information at startup
|
|
982 |
if (SETTINGS_LOGGED) {
|
|
983 |
return;
|
|
984 |
}
|
|
985 |
SETTINGS_LOGGED = true;
|
|
986 |
|
|
987 |
String refType;
|
|
988 |
switch (REF_TYPE) {
|
|
989 |
default:
|
|
990 |
case ReentrantContextProvider.REF_HARD:
|
|
991 |
refType = "hard";
|
|
992 |
break;
|
|
993 |
case ReentrantContextProvider.REF_SOFT:
|
|
994 |
refType = "soft";
|
|
995 |
break;
|
|
996 |
case ReentrantContextProvider.REF_WEAK:
|
|
997 |
refType = "weak";
|
|
998 |
break;
|
|
999 |
}
|
|
1000 |
|
|
1001 |
logInfo("=========================================================="
|
|
1002 |
+ "=====================");
|
|
1003 |
|
|
1004 |
logInfo("Marlin software rasterizer = ENABLED");
|
|
1005 |
logInfo("Version = ["
|
|
1006 |
+ Version.getVersion() + "]");
|
|
1007 |
logInfo("sun.java2d.renderer = "
|
|
1008 |
+ reClass);
|
|
1009 |
logInfo("sun.java2d.renderer.useThreadLocal = "
|
|
1010 |
+ USE_THREAD_LOCAL);
|
|
1011 |
logInfo("sun.java2d.renderer.useRef = "
|
|
1012 |
+ refType);
|
|
1013 |
|
|
1014 |
logInfo("sun.java2d.renderer.edges = "
|
|
1015 |
+ MarlinConst.INITIAL_EDGES_COUNT);
|
|
1016 |
logInfo("sun.java2d.renderer.pixelsize = "
|
|
1017 |
+ MarlinConst.INITIAL_PIXEL_DIM);
|
|
1018 |
|
|
1019 |
logInfo("sun.java2d.renderer.subPixel_log2_X = "
|
|
1020 |
+ MarlinConst.SUBPIXEL_LG_POSITIONS_X);
|
|
1021 |
logInfo("sun.java2d.renderer.subPixel_log2_Y = "
|
|
1022 |
+ MarlinConst.SUBPIXEL_LG_POSITIONS_Y);
|
|
1023 |
|
|
1024 |
logInfo("sun.java2d.renderer.tileSize_log2 = "
|
|
1025 |
+ MarlinConst.TILE_H_LG);
|
|
1026 |
logInfo("sun.java2d.renderer.tileWidth_log2 = "
|
|
1027 |
+ MarlinConst.TILE_W_LG);
|
|
1028 |
logInfo("sun.java2d.renderer.blockSize_log2 = "
|
|
1029 |
+ MarlinConst.BLOCK_SIZE_LG);
|
|
1030 |
|
|
1031 |
// RLE / blockFlags settings
|
|
1032 |
|
|
1033 |
logInfo("sun.java2d.renderer.forceRLE = "
|
|
1034 |
+ MarlinProperties.isForceRLE());
|
|
1035 |
logInfo("sun.java2d.renderer.forceNoRLE = "
|
|
1036 |
+ MarlinProperties.isForceNoRLE());
|
|
1037 |
logInfo("sun.java2d.renderer.useTileFlags = "
|
|
1038 |
+ MarlinProperties.isUseTileFlags());
|
|
1039 |
logInfo("sun.java2d.renderer.useTileFlags.useHeuristics = "
|
|
1040 |
+ MarlinProperties.isUseTileFlagsWithHeuristics());
|
|
1041 |
logInfo("sun.java2d.renderer.rleMinWidth = "
|
|
1042 |
+ MarlinCache.RLE_MIN_WIDTH);
|
|
1043 |
|
|
1044 |
// optimisation parameters
|
|
1045 |
logInfo("sun.java2d.renderer.useSimplifier = "
|
|
1046 |
+ MarlinConst.USE_SIMPLIFIER);
|
|
1047 |
|
|
1048 |
// debugging parameters
|
|
1049 |
logInfo("sun.java2d.renderer.doStats = "
|
|
1050 |
+ MarlinConst.DO_STATS);
|
|
1051 |
logInfo("sun.java2d.renderer.doMonitors = "
|
|
1052 |
+ MarlinConst.DO_MONITORS);
|
|
1053 |
logInfo("sun.java2d.renderer.doChecks = "
|
|
1054 |
+ MarlinConst.DO_CHECKS);
|
|
1055 |
|
|
1056 |
// logging parameters
|
|
1057 |
logInfo("sun.java2d.renderer.useLogger = "
|
|
1058 |
+ MarlinConst.USE_LOGGER);
|
|
1059 |
logInfo("sun.java2d.renderer.logCreateContext = "
|
|
1060 |
+ MarlinConst.LOG_CREATE_CONTEXT);
|
|
1061 |
logInfo("sun.java2d.renderer.logUnsafeMalloc = "
|
|
1062 |
+ MarlinConst.LOG_UNSAFE_MALLOC);
|
|
1063 |
|
|
1064 |
// quality settings
|
|
1065 |
logInfo("sun.java2d.renderer.cubic_dec_d2 = "
|
|
1066 |
+ MarlinProperties.getCubicDecD2());
|
|
1067 |
logInfo("sun.java2d.renderer.cubic_inc_d1 = "
|
|
1068 |
+ MarlinProperties.getCubicIncD1());
|
|
1069 |
logInfo("sun.java2d.renderer.quad_dec_d2 = "
|
|
1070 |
+ MarlinProperties.getQuadDecD2());
|
|
1071 |
|
|
1072 |
logInfo("Renderer settings:");
|
|
1073 |
logInfo("CUB_DEC_BND = " + DRenderer.CUB_DEC_BND);
|
|
1074 |
logInfo("CUB_INC_BND = " + DRenderer.CUB_INC_BND);
|
|
1075 |
logInfo("QUAD_DEC_BND = " + DRenderer.QUAD_DEC_BND);
|
|
1076 |
|
|
1077 |
logInfo("INITIAL_EDGES_CAPACITY = "
|
|
1078 |
+ MarlinConst.INITIAL_EDGES_CAPACITY);
|
|
1079 |
logInfo("INITIAL_CROSSING_COUNT = "
|
|
1080 |
+ DRenderer.INITIAL_CROSSING_COUNT);
|
|
1081 |
|
|
1082 |
logInfo("=========================================================="
|
|
1083 |
+ "=====================");
|
|
1084 |
}
|
|
1085 |
|
|
1086 |
/**
|
|
1087 |
* Get the DRendererContext instance dedicated to the current thread
|
|
1088 |
* @return DRendererContext instance
|
|
1089 |
*/
|
|
1090 |
@SuppressWarnings({"unchecked"})
|
|
1091 |
static DRendererContext getRendererContext() {
|
|
1092 |
final DRendererContext rdrCtx = RDR_CTX_PROVIDER.acquire();
|
|
1093 |
if (DO_MONITORS) {
|
|
1094 |
rdrCtx.stats.mon_pre_getAATileGenerator.start();
|
|
1095 |
}
|
|
1096 |
return rdrCtx;
|
|
1097 |
}
|
|
1098 |
|
|
1099 |
/**
|
|
1100 |
* Reset and return the given DRendererContext instance for reuse
|
|
1101 |
* @param rdrCtx DRendererContext instance
|
|
1102 |
*/
|
|
1103 |
static void returnRendererContext(final DRendererContext rdrCtx) {
|
|
1104 |
rdrCtx.dispose();
|
|
1105 |
|
|
1106 |
if (DO_MONITORS) {
|
|
1107 |
rdrCtx.stats.mon_pre_getAATileGenerator.stop();
|
|
1108 |
}
|
|
1109 |
RDR_CTX_PROVIDER.release(rdrCtx);
|
|
1110 |
}
|
|
1111 |
}
|