--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/marlin/DRendererContext.java Wed May 17 22:05:11 2017 +0200
@@ -0,0 +1,260 @@
+/*
+ * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.java2d.marlin;
+
+import java.awt.geom.Path2D;
+import java.lang.ref.WeakReference;
+import java.util.concurrent.atomic.AtomicInteger;
+import sun.java2d.ReentrantContext;
+import sun.java2d.marlin.ArrayCacheConst.CacheStats;
+import sun.java2d.marlin.DMarlinRenderingEngine.NormalizingPathIterator;
+
+/**
+ * This class is a renderer context dedicated to a single thread
+ */
+final class DRendererContext extends ReentrantContext implements IRendererContext {
+
+ // RendererContext creation counter
+ private static final AtomicInteger CTX_COUNT = new AtomicInteger(1);
+
+ /**
+ * Create a new renderer context
+ *
+ * @return new RendererContext instance
+ */
+ static DRendererContext createContext() {
+ return new DRendererContext("ctx"
+ + Integer.toString(CTX_COUNT.getAndIncrement()));
+ }
+
+ // Smallest object used as Cleaner's parent reference
+ private final Object cleanerObj;
+ // dirty flag indicating an exception occured during pipeline in pathTo()
+ boolean dirty = false;
+ // shared data
+ final double[] double6 = new double[6];
+ // shared curve (dirty) (Renderer / Stroker)
+ final DCurve curve = new DCurve();
+ // MarlinRenderingEngine NormalizingPathIterator NearestPixelCenter:
+ final NormalizingPathIterator nPCPathIterator;
+ // MarlinRenderingEngine NearestPixelQuarter NormalizingPathIterator:
+ final NormalizingPathIterator nPQPathIterator;
+ // MarlinRenderingEngine.TransformingPathConsumer2D
+ final DTransformingPathConsumer2D transformerPC2D;
+ // recycled Path2D instance (weak)
+ private WeakReference<Path2D.Double> refPath2D = null;
+ final DRenderer renderer;
+ final DStroker stroker;
+ // Simplifies out collinear lines
+ final DCollinearSimplifier simplifier = new DCollinearSimplifier();
+ final DDasher dasher;
+ final MarlinTileGenerator ptg;
+ final MarlinCache cache;
+ // flag indicating the shape is stroked (1) or filled (0)
+ int stroking = 0;
+
+ // Array caches:
+ /* clean int[] cache (zero-filled) = 5 refs */
+ private final IntArrayCache cleanIntCache = new IntArrayCache(true, 5);
+ /* dirty int[] cache = 4 refs */
+ private final IntArrayCache dirtyIntCache = new IntArrayCache(false, 4);
+ /* dirty double[] cache = 3 refs */
+ private final DoubleArrayCache dirtyDoubleCache = new DoubleArrayCache(false, 3);
+ /* dirty byte[] cache = 1 ref */
+ private final ByteArrayCache dirtyByteCache = new ByteArrayCache(false, 1);
+
+ // RendererContext statistics
+ final RendererStats stats;
+
+ final PathConsumer2DAdapter p2dAdapter = new PathConsumer2DAdapter();
+
+
+ /**
+ * Constructor
+ *
+ * @param name context name (debugging)
+ */
+ DRendererContext(final String name) {
+ if (LOG_CREATE_CONTEXT) {
+ MarlinUtils.logInfo("new RendererContext = " + name);
+ }
+ this.cleanerObj = new Object();
+
+ // create first stats (needed by newOffHeapArray):
+ if (DO_STATS || DO_MONITORS) {
+ stats = RendererStats.createInstance(cleanerObj, name);
+ // push cache stats:
+ stats.cacheStats = new CacheStats[] { cleanIntCache.stats,
+ dirtyIntCache.stats, dirtyDoubleCache.stats, dirtyByteCache.stats
+ };
+ } else {
+ stats = null;
+ }
+
+ // NormalizingPathIterator instances:
+ nPCPathIterator = new NormalizingPathIterator.NearestPixelCenter(double6);
+ nPQPathIterator = new NormalizingPathIterator.NearestPixelQuarter(double6);
+
+ // MarlinRenderingEngine.TransformingPathConsumer2D
+ transformerPC2D = new DTransformingPathConsumer2D();
+
+ // Renderer:
+ cache = new MarlinCache(this);
+ renderer = new DRenderer(this); // needs MarlinCache from rdrCtx.cache
+ ptg = new MarlinTileGenerator(stats, renderer, cache);
+
+ stroker = new DStroker(this);
+ dasher = new DDasher(this);
+ }
+
+ /**
+ * Disposes this renderer context:
+ * clean up before reusing this context
+ */
+ void dispose() {
+ if (DO_STATS) {
+ if (stats.totalOffHeap > stats.totalOffHeapMax) {
+ stats.totalOffHeapMax = stats.totalOffHeap;
+ }
+ stats.totalOffHeap = 0L;
+ }
+ stroking = 0;
+ // if context is maked as DIRTY:
+ if (dirty) {
+ // may happen if an exception if thrown in the pipeline processing:
+ // force cleanup of all possible pipelined blocks (except Renderer):
+
+ // NormalizingPathIterator instances:
+ this.nPCPathIterator.dispose();
+ this.nPQPathIterator.dispose();
+ // Dasher:
+ this.dasher.dispose();
+ // Stroker:
+ this.stroker.dispose();
+
+ // mark context as CLEAN:
+ dirty = false;
+ }
+ }
+
+ Path2D.Double getPath2D() {
+ // resolve reference:
+ Path2D.Double p2d
+ = (refPath2D != null) ? refPath2D.get() : null;
+
+ // create a new Path2D ?
+ if (p2d == null) {
+ p2d = new Path2D.Double(Path2D.WIND_NON_ZERO, INITIAL_EDGES_COUNT); // 32K
+
+ // update weak reference:
+ refPath2D = new WeakReference<Path2D.Double>(p2d);
+ }
+ // reset the path anyway:
+ p2d.reset();
+ return p2d;
+ }
+
+ @Override
+ public RendererStats stats() {
+ return stats;
+ }
+
+ @Override
+ public OffHeapArray newOffHeapArray(final long initialSize) {
+ if (DO_STATS) {
+ stats.totalOffHeapInitial += initialSize;
+ }
+ return new OffHeapArray(cleanerObj, initialSize);
+ }
+
+ @Override
+ public IntArrayCache.Reference newCleanIntArrayRef(final int initialSize) {
+ return cleanIntCache.createRef(initialSize);
+ }
+
+ IntArrayCache.Reference newDirtyIntArrayRef(final int initialSize) {
+ return dirtyIntCache.createRef(initialSize);
+ }
+
+ DoubleArrayCache.Reference newDirtyDoubleArrayRef(final int initialSize) {
+ return dirtyDoubleCache.createRef(initialSize);
+ }
+
+ ByteArrayCache.Reference newDirtyByteArrayRef(final int initialSize) {
+ return dirtyByteCache.createRef(initialSize);
+ }
+
+ static final class PathConsumer2DAdapter implements DPathConsumer2D {
+ private sun.awt.geom.PathConsumer2D out;
+
+ PathConsumer2DAdapter() {}
+
+ PathConsumer2DAdapter init(sun.awt.geom.PathConsumer2D out) {
+ this.out = out;
+ return this;
+ }
+
+ @Override
+ public void moveTo(double x0, double y0) {
+ out.moveTo((float)x0, (float)y0);
+ }
+
+ @Override
+ public void lineTo(double x1, double y1) {
+ out.lineTo((float)x1, (float)y1);
+ }
+
+ @Override
+ public void closePath() {
+ out.closePath();
+ }
+
+ @Override
+ public void pathDone() {
+ out.pathDone();
+ }
+
+ @Override
+ public void curveTo(double x1, double y1,
+ double x2, double y2,
+ double x3, double y3)
+ {
+ out.curveTo((float)x1, (float)y1,
+ (float)x2, (float)y2,
+ (float)x3, (float)y3);
+ }
+
+ @Override
+ public void quadTo(double x1, double y1, double x2, double y2) {
+ out.quadTo((float)x1, (float)y1, (float)x2, (float)y2);
+ }
+
+ @Override
+ public long getNativeConsumer() {
+ throw new InternalError("Not using a native peer");
+ }
+ }
+}