--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/java2d/opengl/OGLSurfaceDataProxy.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2007 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.opengl;
+
+import java.awt.Color;
+import java.awt.Transparency;
+
+import sun.java2d.SurfaceData;
+import sun.java2d.SurfaceDataProxy;
+import sun.java2d.loops.SurfaceType;
+import sun.java2d.loops.CompositeType;
+
+/**
+ * The proxy class contains the logic for when to replace a
+ * SurfaceData with a cached OGL Texture and the code to create
+ * the accelerated surfaces.
+ */
+public class OGLSurfaceDataProxy extends SurfaceDataProxy {
+    public static SurfaceDataProxy createProxy(SurfaceData srcData,
+                                               OGLGraphicsConfig dstConfig)
+    {
+        if (srcData instanceof OGLSurfaceData) {
+            // srcData must be a VolatileImage which either matches
+            // our pixel format or not - either way we do not cache it...
+            return UNCACHED;
+        }
+
+        return new OGLSurfaceDataProxy(dstConfig, srcData.getTransparency());
+    }
+
+    OGLGraphicsConfig oglgc;
+    int transparency;
+
+    public OGLSurfaceDataProxy(OGLGraphicsConfig oglgc, int transparency) {
+        this.oglgc = oglgc;
+        this.transparency = transparency;
+    }
+
+    @Override
+    public SurfaceData validateSurfaceData(SurfaceData srcData,
+                                           SurfaceData cachedData,
+                                           int w, int h)
+    {
+        if (cachedData == null) {
+            cachedData = oglgc.createManagedSurface(w, h, transparency);
+        }
+        return cachedData;
+    }
+
+    @Override
+    public boolean isSupportedOperation(SurfaceData srcData,
+                                        int txtype,
+                                        CompositeType comp,
+                                        Color bgColor)
+    {
+        return (bgColor == null || transparency == Transparency.OPAQUE);
+    }
+}