author | aghaisas |
Wed, 20 Feb 2019 17:00:40 +0530 | |
branch | metal-prototype-branch |
changeset 57196 | a95707a39ff5 |
permissions | -rw-r--r-- |
57196
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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/* |
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* Copyright (c) 2019, 2019, 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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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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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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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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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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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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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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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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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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|
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package sun.java2d.metal; |
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|
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import sun.awt.util.ThreadGroupUtils; |
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import sun.java2d.pipe.RenderBuffer; |
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import sun.java2d.pipe.RenderQueue; |
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|
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import static sun.java2d.pipe.BufferedOpCodes.*; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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|
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/** |
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* OGL-specific implementation of RenderQueue. This class provides a |
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* single (daemon) thread that is responsible for periodically flushing |
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* the queue, thus ensuring that only one thread communicates with the native |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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* OpenGL libraries for the entire process. |
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*/ |
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public class MetalRenderQueue extends RenderQueue { |
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private static MetalRenderQueue theInstance; |
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private final QueueFlusher flusher; |
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private MetalRenderQueue() { |
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/* |
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* The thread must be a member of a thread group |
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* which will not get GCed before VM exit. |
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*/ |
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flusher = AccessController.doPrivileged((PrivilegedAction<QueueFlusher>) QueueFlusher::new); |
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} |
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|
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/** |
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* Returns the single OGLRenderQueue instance. If it has not yet been |
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* initialized, this method will first construct the single instance |
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* before returning it. |
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*/ |
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public static synchronized MetalRenderQueue getInstance() { |
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if (theInstance == null) { |
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theInstance = new MetalRenderQueue(); |
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} |
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return theInstance; |
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} |
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|
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/** |
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* Flushes the single OGLRenderQueue instance synchronously. If an |
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* OGLRenderQueue has not yet been instantiated, this method is a no-op. |
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* This method is useful in the case of Toolkit.sync(), in which we want |
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* to flush the OGL pipeline, but only if the OGL pipeline is currently |
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* enabled. Since this class has few external dependencies, callers need |
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* not be concerned that calling this method will trigger initialization |
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* of the OGL pipeline and related classes. |
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*/ |
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public static void sync() { |
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if (theInstance != null) { |
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theInstance.lock(); |
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try { |
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theInstance.ensureCapacity(4); |
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theInstance.getBuffer().putInt(SYNC); |
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theInstance.flushNow(); |
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} finally { |
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theInstance.unlock(); |
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} |
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} |
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} |
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|
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/** |
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* Disposes the native memory associated with the given native |
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* graphics config info pointer on the single queue flushing thread. |
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*/ |
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public static void disposeGraphicsConfig(long pConfigInfo) { |
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MetalRenderQueue rq = getInstance(); |
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rq.lock(); |
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try { |
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// make sure we make the context associated with the given |
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// GraphicsConfig current before disposing the native resources |
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MetalContext.setScratchSurface(pConfigInfo); |
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|
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RenderBuffer buf = rq.getBuffer(); |
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rq.ensureCapacityAndAlignment(12, 4); |
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buf.putInt(DISPOSE_CONFIG); |
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buf.putLong(pConfigInfo); |
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|
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// this call is expected to complete synchronously, so flush now |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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rq.flushNow(); |
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} finally { |
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rq.unlock(); |
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} |
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} |
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|
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/** |
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* Returns true if the current thread is the OGL QueueFlusher thread. |
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*/ |
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public static boolean isQueueFlusherThread() { |
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return (Thread.currentThread() == getInstance().flusher.thread); |
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} |
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|
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public void flushNow() { |
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// assert lock.isHeldByCurrentThread(); |
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try { |
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flusher.flushNow(); |
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} catch (Exception e) { |
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System.err.println("exception in flushNow:"); |
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e.printStackTrace(); |
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} |
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} |
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|
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public void flushAndInvokeNow(Runnable r) { |
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// assert lock.isHeldByCurrentThread(); |
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try { |
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flusher.flushAndInvokeNow(r); |
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} catch (Exception e) { |
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135 |
System.err.println("exception in flushAndInvokeNow:"); |
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e.printStackTrace(); |
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} |
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138 |
} |
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139 |
|
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140 |
private native long flushBuffer(long buf, int limit); |
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141 |
|
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142 |
private void flushBuffer() { |
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143 |
|
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144 |
// assert lock.isHeldByCurrentThread(); |
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145 |
int limit = buf.position(); |
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146 |
if (limit > 0) { |
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147 |
System.out.println("FlushBuffer ---------- invoking RQ native flushBuffer"); |
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148 |
|
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149 |
// process the queue |
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flushBuffer(buf.getAddress(), limit); |
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|
151 |
} |
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152 |
// reset the buffer position |
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153 |
buf.clear(); |
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|
154 |
// clear the set of references, since we no longer need them |
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155 |
refSet.clear(); |
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156 |
} |
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157 |
|
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158 |
private class QueueFlusher implements Runnable { |
a95707a39ff5
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|
159 |
private boolean needsFlush; |
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160 |
private Runnable task; |
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|
161 |
private Error error; |
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162 |
private final Thread thread; |
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|
163 |
|
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|
164 |
public QueueFlusher() { |
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165 |
String name = "Java2D Queue Flusher"; |
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166 |
thread = new Thread(ThreadGroupUtils.getRootThreadGroup(), |
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|
167 |
this, name, 0, false); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
168 |
thread.setDaemon(true); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
169 |
thread.setPriority(Thread.MAX_PRIORITY); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
170 |
thread.start(); |
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|
171 |
} |
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|
172 |
|
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
173 |
public synchronized void flushNow() { |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
174 |
// wake up the flusher |
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|
175 |
needsFlush = true; |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
176 |
System.out.println("****** QueueFlusher : about to notify flusher thread"); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
177 |
notify(); |
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|
178 |
|
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
179 |
// wait for flush to complete |
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|
180 |
while (needsFlush) { |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
181 |
try { |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
182 |
|
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
183 |
System.out.println("****** QueueFlusher : waiting for flush to complete"); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
184 |
wait(); |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
185 |
} catch (InterruptedException e) { |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
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|
186 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
187 |
} |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
188 |
|
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
189 |
// re-throw any error that may have occurred during the flush |
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|
190 |
if (error != null) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
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|
191 |
throw error; |
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Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
192 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
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|
193 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
194 |
|
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
195 |
public synchronized void flushAndInvokeNow(Runnable task) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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|
196 |
this.task = task; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
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|
197 |
flushNow(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
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|
198 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
changeset
|
199 |
|
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
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diff
changeset
|
200 |
public synchronized void run() { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
changeset
|
201 |
boolean timedOut = false; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
202 |
while (true) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
203 |
while (!needsFlush) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
204 |
try { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
205 |
timedOut = false; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
206 |
/* |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
changeset
|
207 |
* Wait until we're woken up with a flushNow() call, |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
208 |
* or the timeout period elapses (so that we can |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
changeset
|
209 |
* flush the queue periodically). |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
210 |
*/ |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
211 |
wait(100); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
212 |
/* |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
changeset
|
213 |
* We will automatically flush the queue if the |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
214 |
* following conditions apply: |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
215 |
* - the wait() timed out |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
216 |
* - we can lock the queue (without blocking) |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
217 |
* - there is something in the queue to flush |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
changeset
|
218 |
* Otherwise, just continue (we'll flush eventually). |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
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|
219 |
*/ |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
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diff
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|
220 |
if (!needsFlush && (timedOut = tryLock())) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
221 |
if (buf.position() > 0) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
222 |
needsFlush = true; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
223 |
} else { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
224 |
unlock(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
225 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
226 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
227 |
} catch (InterruptedException e) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
228 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
229 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
230 |
try { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
231 |
// reset the throwable state |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
232 |
error = null; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
233 |
// flush the buffer now |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
234 |
|
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
235 |
System.out.println("Thread invoking flushBuffer -------------- "); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
236 |
flushBuffer(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
237 |
// if there's a task, invoke that now as well |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
238 |
if (task != null) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
239 |
task.run(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
240 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
241 |
} catch (Error e) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
242 |
error = e; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
243 |
} catch (Exception x) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
244 |
System.err.println("exception in QueueFlusher:"); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
245 |
x.printStackTrace(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
246 |
} finally { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
247 |
if (timedOut) { |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
248 |
unlock(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
249 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
250 |
task = null; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
251 |
// allow the waiting thread to continue |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
252 |
needsFlush = false; |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
253 |
notify(); |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
254 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
255 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
256 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
257 |
} |
a95707a39ff5
Description : Metal Rendering Pipeline - initial implementation of line and quad rendering
aghaisas
parents:
diff
changeset
|
258 |
} |