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-rw-r--r--src/javax/media/j3d/J3dThread.java354
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diff --git a/src/javax/media/j3d/J3dThread.java b/src/javax/media/j3d/J3dThread.java
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--- a/src/javax/media/j3d/J3dThread.java
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-/*
- * Copyright 1998-2008 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 javax.media.j3d;
-
-/**
- * The J3dThread is the super class of all slave threads in Java 3D. It implements
- * all of the common flow control constructs.
- */
-
-abstract class J3dThread extends Thread {
- /**
- * These are the thread types that a message may affect
- */
- static final int BEHAVIOR_SCHEDULER = 0x01;
- static final int SOUND_SCHEDULER = 0x02;
- static final int INPUT_DEVICE_SCHEDULER = 0x04;
- static final int RENDER_THREAD = 0x10;
-// static final int COLLISION_THREAD = 0x20;
- static final int UPDATE_GEOMETRY = 0x40;
- static final int UPDATE_RENDER = 0x80;
- static final int UPDATE_BEHAVIOR = 0x100;
- static final int UPDATE_SOUND = 0x200;
- static final int UPDATE_RENDERING_ATTRIBUTES = 0x400;
- static final int UPDATE_RENDERING_ENVIRONMENT = 0x1000;
- static final int UPDATE_TRANSFORM = 0x2000;
-
- /**
- * The classification types.
- */
- static final int WORK_THREAD = 0x01;
- static final int UPDATE_THREAD = 0x02;
-
- /**
- * This runMonitor action puts the thread into an initial wait state
- */
- static final int WAIT = 0;
-
- /**
- * This runMonitor action notifies MasterControl that this thread
- * has completed and wait.
- */
- static final int NOTIFY_AND_WAIT = 1;
-
- /**
- * This is used by Canvas3D Renderer to notify user thread
- * that swap is completed.
- */
- static final int NOTIFY = 2;
-
- /**
- * This runMonitor action tells the thread to run N number of
- * iterations.
- */
- static final int RUN = 2;
-
- /**
- * This runMonitor action tells the thread to stop running
- */
- static final int STOP = 3;
-
- /**
- * This indicates that this thread has been activated by MC
- */
- boolean active = false;
-
- /**
- * This indicates that this thread is alive and running
- */
- private volatile boolean running = true;
-
- /**
- * This flag is set by the RUN action of runMonitor to indicate that the
- * waiting thread has work to do.
- */
- private volatile boolean ready = false;
-
- /**
- * The thread data for this thread
- */
- private J3dThreadData[] data = null;
-
- /**
- * This indicates that this thread is started and able to accept work
- */
- private volatile boolean started = false;
-
- /**
- * The time values passed into this thread
- */
- long referenceTime;
-
- /**
- * Use to assign threadOpts WAIT_ALL_THREADS
- */
- long lastWaitTimestamp = 0;
-
- /**
- * The type of this thread. It is one of the above constants.
- */
- int type;
-
- /**
- * The classification of this thread. It is one of the above constants.
- */
- int classification = WORK_THREAD;
-
- /**
- * The arguments passed in for this thread
- */
- Object[] args = null;
-
- /**
- * Flag to indicate that user initiate a thread stop
- */
- volatile boolean userStop = false;
-
- /**
- * Flag to indicate that this thread is waiting to be notify
- */
- private volatile boolean waiting = false;
-
- /**
- * Some variables used to name threads correctly
- */
- private static int numInstances = 0;
- private int instanceNum = -1;
-
- private synchronized int newInstanceNum() {
- return (++numInstances);
- }
-
- int getInstanceNum() {
- if (instanceNum == -1)
- instanceNum = newInstanceNum();
- return instanceNum;
- }
-
- /**
- * This method is defined by all slave threads to implement
- * one iteration of work.
- */
- abstract void doWork(long referenceTime);
-
- /**
- * This constructor simply assigns the given id.
- */
- J3dThread(ThreadGroup t) {
- super(t, "");
- }
-
- /**
- * This returns the thread data for this thread.
- */
- synchronized J3dThreadData getThreadData(View v, Canvas3D c) {
- J3dThreadData threadData;
- int i, j;
- J3dThreadData[] newData;
-
- if (type != RENDER_THREAD) { // Regular Thread
- if (data == null) {
- data = new J3dThreadData[1];
- data[0] = new J3dThreadData();
- data[0].thread = this;
- data[0].threadType = type;
- data[0].view = null;
- data[0].canvas = null;
- }
- threadData = data[0];
- } else { // Render thread
-
- // Note: each renderer has multiple thread data mappings
- // for its render and swap threads
-
- if (data == null) {
- data = new J3dThreadData[1];
- data[0] = new J3dThreadData();
- data[0].thread = this;
- data[0].threadType = type;
- data[0].view = v;
- data[0].canvas = c;
- data[0].threadArgs = new Object[4];
- threadData = data[0];
- } else {
- for (i=0; i<data.length; i++) {
- if (data[i].view == v && data[i].canvas == c) {
- break;
- }
- }
- if (i==data.length) {
- newData = new J3dThreadData[data.length+1];
- for (j=0; j<data.length; j++) {
- newData[j] = data[j];
- }
- data = newData;
- data[j] = new J3dThreadData();
- data[j].thread = this;
- data[j].threadType = type;
- data[j].view = v;
- data[j].canvas = c;
- data[j].threadArgs = new Object[4];
- threadData = data[j];
- } else {
- threadData = data[i];
- Object args[] = (Object []) threadData.threadArgs;
- args[0] = null;
- args[1] = null;
- args[2] = null;
- args[3] = null;
- }
- }
-
- }
-
- return (threadData);
- }
-
- /**
- * This initializes this thread. Once this method returns, the thread is
- * able to accept work.
- */
- void initialize() {
- this.start();
- while (!started) {
- MasterControl.threadYield();
- }
- }
-
- /**
- * This causes the threads run method to exit.
- */
- void finish() {
- // NOTE: This spin loop is probably not necessary.
- while (!waiting) {
- MasterControl.threadYield();
- }
- runMonitor(STOP, 0,null);
- }
-
- /**
- * This thread controls the syncing of all the canvases attached to
- * this view.
- */
- @Override
- public void run() {
- runMonitor(WAIT, 0, null);
- while (running) {
- doWork(referenceTime);
- runMonitor(NOTIFY_AND_WAIT, 0, null);
- }
- // resource clean up
- shutdown();
- }
-
- synchronized void runMonitor(int action, long referenceTime,
- Object[] args) {
- switch (action) {
- case WAIT:
- started = true;
- // Issue 279 - loop until ready
- while (!ready && running) {
- waiting = true;
- try {
- wait();
- } catch (InterruptedException e) {
- System.err.println(e);
- }
- waiting = false;
- }
- ready = false;
- break;
-
- case NOTIFY_AND_WAIT:
- VirtualUniverse.mc.runMonitor(MasterControl.THREAD_DONE, null,
- null, null, this);
- // Issue 279 - loop until ready
- while (!ready && running) {
- waiting = true;
- try {
- wait();
- } catch (InterruptedException e) {
- System.err.println(e);
- }
- waiting = false;
- }
- ready = false;
- break;
-
- case RUN:
- this.referenceTime = referenceTime;
- this.args = args;
- ready = true;
- if (waiting) {
- notify();
- }
- break;
-
- case STOP:
- running = false;
- if (waiting) {
- notify();
- }
- break;
- }
- }
-
- void cleanupView() {
- // renderer will reconstruct threadData next time
- // in getThreadData
- data = null;
- }
-
- // default resource clean up method
- void shutdown() {
- }
-
- void cleanup() {
- active = false;
- running = true;
- ready = false;
- data = null;
- started = true;
- lastWaitTimestamp = 0;
- classification = WORK_THREAD;
- args = null;
- userStop = false;
- referenceTime = 0;
-
- }
-
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-24 16:43:28 +0000