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+/*
+ * Copyright 2010 Sun Microsystems, Inc. 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. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.java2d.xr;
+
+import java.awt.GraphicsConfiguration;
+import java.awt.ImageCapabilities;
+import java.awt.image.ColorModel;
+import sun.awt.image.SunVolatileImage;
+import sun.awt.image.VolatileSurfaceManager;
+import sun.java2d.SurfaceData;
+
+/**
+ * XRender platform implementation of the VolatileSurfaceManager class.
+ */
+public class XRVolatileSurfaceManager extends VolatileSurfaceManager {
+
+ public XRVolatileSurfaceManager(SunVolatileImage vImg, Object context) {
+ super(vImg, context);
+ }
+
+ protected boolean isAccelerationEnabled() {
+ return true;
+ }
+
+ /**
+ * Create a pixmap-based SurfaceData object
+ */
+ protected SurfaceData initAcceleratedSurface() {
+ SurfaceData sData;
+
+ try {
+ XRGraphicsConfig gc = (XRGraphicsConfig) vImg.getGraphicsConfig();
+ ColorModel cm = gc.getColorModel();
+ long drawable = 0;
+ if (context instanceof Long) {
+ drawable = ((Long)context).longValue();
+ }
+ sData = XRSurfaceData.createData(gc,
+ vImg.getWidth(),
+ vImg.getHeight(),
+ cm, vImg, drawable,
+ vImg.getTransparency());
+ } catch (NullPointerException ex) {
+ sData = null;
+ } catch (OutOfMemoryError er) {
+ sData = null;
+ }
+
+ return sData;
+ }
+
+ /**
+ * XRender should allow copies between different formats and depths.
+ * TODO: verify that this assumption is correct.
+ */
+ protected boolean isConfigValid(GraphicsConfiguration gc) {
+ return true;
+ }
+
+ /**
+ * Need to override the default behavior because Pixmaps-based
+ * images are accelerated but not volatile.
+ */
+ @Override
+ public ImageCapabilities getCapabilities(GraphicsConfiguration gc) {
+ if (isConfigValid(gc) && isAccelerationEnabled()) {
+ return new ImageCapabilities(true);
+ }
+ return new ImageCapabilities(false);
+ }
+}