| /* |
| * Copyright (c) 2007, 2008, 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.d3d; |
| |
| import sun.java2d.ScreenUpdateManager; |
| import sun.java2d.pipe.RenderBuffer; |
| import sun.java2d.pipe.RenderQueue; |
| import static sun.java2d.pipe.BufferedOpCodes.*; |
| |
| /** |
| * D3D-specific implementation of RenderQueue. |
| */ |
| public class D3DRenderQueue extends RenderQueue { |
| |
| private static D3DRenderQueue theInstance; |
| private static Thread rqThread; |
| |
| private D3DRenderQueue() { |
| } |
| |
| /** |
| * Returns the single D3DRenderQueue instance. If it has not yet been |
| * initialized, this method will first construct the single instance |
| * before returning it. |
| */ |
| public static synchronized D3DRenderQueue getInstance() { |
| if (theInstance == null) { |
| theInstance = new D3DRenderQueue(); |
| // no need to lock, noone has reference to this instance yet |
| theInstance.flushAndInvokeNow(new Runnable() { |
| public void run() { |
| rqThread = Thread.currentThread(); |
| } |
| }); |
| } |
| return theInstance; |
| } |
| |
| /** |
| * Flushes the single D3DRenderQueue instance synchronously. If an |
| * D3DRenderQueue has not yet been instantiated, this method is a no-op. |
| * This method is useful in the case of Toolkit.sync(), in which we want |
| * to flush the D3D pipeline, but only if the D3D pipeline is currently |
| * enabled. Since this class has few external dependencies, callers need |
| * not be concerned that calling this method will trigger initialization |
| * of the D3D pipeline and related classes. |
| */ |
| public static void sync() { |
| if (theInstance != null) { |
| // need to make sure any/all screen surfaces are presented prior |
| // to completing the sync operation |
| D3DScreenUpdateManager mgr = |
| (D3DScreenUpdateManager)ScreenUpdateManager.getInstance(); |
| mgr.runUpdateNow(); |
| |
| theInstance.lock(); |
| try { |
| theInstance.ensureCapacity(4); |
| theInstance.getBuffer().putInt(SYNC); |
| theInstance.flushNow(); |
| } finally { |
| theInstance.unlock(); |
| } |
| } |
| } |
| |
| /** |
| * Attempt to restore the devices if they're in the lost state. |
| * (used when a full-screen window is activated/deactivated) |
| */ |
| public static void restoreDevices() { |
| D3DRenderQueue rq = getInstance(); |
| rq.lock(); |
| try { |
| rq.ensureCapacity(4); |
| rq.getBuffer().putInt(RESTORE_DEVICES); |
| rq.flushNow(); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| /** |
| * @return true if current thread is the render queue thread, |
| * false otherwise |
| */ |
| public static boolean isRenderQueueThread() { |
| return (Thread.currentThread() == rqThread); |
| } |
| |
| /** |
| * Disposes the native memory associated with the given native |
| * graphics config info pointer on the single queue flushing thread. |
| */ |
| public static void disposeGraphicsConfig(long pConfigInfo) { |
| D3DRenderQueue rq = getInstance(); |
| rq.lock(); |
| try { |
| |
| RenderBuffer buf = rq.getBuffer(); |
| rq.ensureCapacityAndAlignment(12, 4); |
| buf.putInt(DISPOSE_CONFIG); |
| buf.putLong(pConfigInfo); |
| |
| // this call is expected to complete synchronously, so flush now |
| rq.flushNow(); |
| } finally { |
| rq.unlock(); |
| } |
| } |
| |
| public void flushNow() { |
| // assert lock.isHeldByCurrentThread(); |
| flushBuffer(null); |
| } |
| |
| public void flushAndInvokeNow(Runnable r) { |
| // assert lock.isHeldByCurrentThread(); |
| flushBuffer(r); |
| } |
| |
| private native void flushBuffer(long buf, int limit, Runnable task); |
| |
| private void flushBuffer(Runnable task) { |
| // assert lock.isHeldByCurrentThread(); |
| int limit = buf.position(); |
| if (limit > 0 || task != null) { |
| // process the queue |
| flushBuffer(buf.getAddress(), limit, task); |
| } |
| // reset the buffer position |
| buf.clear(); |
| // clear the set of references, since we no longer need them |
| refSet.clear(); |
| } |
| } |