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-rw-r--r--src/net/java/games/jogl/GLCanvas.java278
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diff --git a/src/net/java/games/jogl/GLCanvas.java b/src/net/java/games/jogl/GLCanvas.java
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--- a/src/net/java/games/jogl/GLCanvas.java
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-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package net.java.games.jogl;
-
-import java.awt.Canvas;
-import java.awt.EventQueue;
-import java.awt.Graphics;
-import java.awt.GraphicsConfiguration;
-import net.java.games.jogl.impl.*;
-
-// FIXME: Subclasses need to call resetGLFunctionAvailability() on their
-// context whenever the displayChanged() function is called on our
-// GLEventListeners
-
-/** A heavyweight AWT component which provides OpenGL rendering
- support. This is the primary implementation of {@link GLDrawable};
- {@link GLJPanel} is provided for compatibility with Swing user
- interfaces when adding a heavyweight doesn't work either because
- of Z-ordering or LayoutManager problems. This class can not be
- instantiated directly; use {@link GLDrawableFactory} to construct
- them. */
-
-public final class GLCanvas extends Canvas implements GLDrawable {
-
- protected static final boolean DEBUG = Debug.debug("GLCanvas");
-
- private GLDrawableHelper drawableHelper = new GLDrawableHelper();
- private GLContext context;
-
- GLCanvas(GraphicsConfiguration config,
- GLCapabilities capabilities,
- GLCapabilitiesChooser chooser,
- GLDrawable shareWith) {
- super(config);
- context = GLContextFactory.getFactory().createGLContext(this, capabilities, chooser,
- GLContextHelper.getContext(shareWith));
- }
-
- public void display() {
- maybeDoSingleThreadedWorkaround(displayOnEventDispatchThreadAction,
- displayAction,
- false);
- }
-
- /** Overridden from Canvas; calls {@link #display}. Should not be
- invoked by applications directly. */
- public void paint(Graphics g) {
- if (!context.getNoAutoRedrawMode()) {
- display();
- }
- }
-
- /** Overridden from Canvas; used to indicate when it's safe to
- create an OpenGL context for the component. */
- public void addNotify() {
- super.addNotify();
- context.setRealized();
- if (DEBUG) {
- System.err.println("GLCanvas.addNotify()");
- }
- }
-
- /** Overridden from Canvas; used to indicate that it's no longer
- safe to have an OpenGL context for the component. */
- public void removeNotify() {
- context.destroy();
- super.removeNotify();
- if (DEBUG) {
- System.err.println("GLCanvas.removeNotify()");
- }
- }
-
- /** Overridden from Canvas; causes {@link GLDrawableHelper#reshape}
- to be called on all registered {@link GLEventListener}s. Called
- automatically by the AWT; should not be invoked by applications
- directly. */
- public void reshape(int x, int y, int width, int height) {
- super.reshape(x, y, width, height);
- // Note: we ignore the given x and y within the parent component
- // since we are drawing directly into this heavyweight component.
- final int fx = 0;
- final int fy = 0;
- final int fwidth = width;
- final int fheight = height;
- final Runnable reshapeRunnable = new Runnable() {
- public void run() {
- getGL().glViewport(fx, fy, fwidth, fheight);
- drawableHelper.reshape(GLCanvas.this, fx, fy, fwidth, fheight);
- }
- };
- final Runnable reshapeOnEDTRunnable = new Runnable() {
- public void run() {
- context.invokeGL(reshapeRunnable, true, initAction);
- }
- };
- maybeDoSingleThreadedWorkaround(reshapeOnEDTRunnable, reshapeRunnable, true);
- }
-
- /** Overridden from Canvas to prevent Java2D's clearing of the
- canvas from interfering with the OpenGL rendering. */
- public void update(Graphics g) {
- paint(g);
- }
-
- public void addGLEventListener(GLEventListener listener) {
- drawableHelper.addGLEventListener(listener);
- }
-
- public void removeGLEventListener(GLEventListener listener) {
- drawableHelper.removeGLEventListener(listener);
- }
-
- public GL getGL() {
- return context.getGL();
- }
-
- public void setGL(GL gl) {
- context.setGL(gl);
- }
-
- public GLU getGLU() {
- return context.getGLU();
- }
-
- public void setGLU(GLU glu) {
- context.setGLU(glu);
- }
-
- void willSetRenderingThread() {
- context.willSetRenderingThread();
- }
-
- public void setRenderingThread(Thread currentThreadOrNull) throws GLException {
- context.setRenderingThread(currentThreadOrNull, initAction);
- }
-
- public Thread getRenderingThread() {
- return context.getRenderingThread();
- }
-
- public void setNoAutoRedrawMode(boolean noAutoRedraw) {
- context.setNoAutoRedrawMode(noAutoRedraw);
- }
-
- public boolean getNoAutoRedrawMode() {
- return context.getNoAutoRedrawMode();
- }
-
- public void setAutoSwapBufferMode(boolean onOrOff) {
- context.setAutoSwapBufferMode(onOrOff);
- }
-
- public boolean getAutoSwapBufferMode() {
- return context.getAutoSwapBufferMode();
- }
-
- public void swapBuffers() {
- maybeDoSingleThreadedWorkaround(swapBuffersOnEventDispatchThreadAction, swapBuffersAction, false);
- }
-
- public boolean canCreateOffscreenDrawable() {
- return context.canCreatePbufferContext();
- }
-
- public GLPbuffer createOffscreenDrawable(GLCapabilities capabilities,
- int initialWidth,
- int initialHeight) {
- return new GLPbufferImpl(context.createPbufferContext(capabilities, initialWidth, initialHeight));
- }
-
- GLContext getContext() {
- return context;
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private void maybeDoSingleThreadedWorkaround(Runnable eventDispatchThreadAction,
- Runnable invokeGLAction,
- boolean isReshape) {
- if (SingleThreadedWorkaround.doWorkaround() && !EventQueue.isDispatchThread()) {
- try {
- // Reshape events must not block on the event queue due to the
- // possibility of deadlocks during initial component creation.
- // This solution is not optimal, because it changes the
- // semantics of reshape() to have some of the processing being
- // done asynchronously, but at least it preserves the
- // semantics of the single-threaded workaround.
- if (!isReshape) {
- EventQueue.invokeAndWait(eventDispatchThreadAction);
- } else {
- EventQueue.invokeLater(eventDispatchThreadAction);
- }
- } catch (Exception e) {
- throw new GLException(e);
- }
- } else {
- context.invokeGL(invokeGLAction, isReshape, initAction);
- }
- }
-
- class InitAction implements Runnable {
- public void run() {
- drawableHelper.init(GLCanvas.this);
- }
- }
- private InitAction initAction = new InitAction();
-
- class DisplayAction implements Runnable {
- public void run() {
- drawableHelper.display(GLCanvas.this);
- }
- }
- private DisplayAction displayAction = new DisplayAction();
-
- class SwapBuffersAction implements Runnable {
- public void run() {
- context.swapBuffers();
- }
- }
- private SwapBuffersAction swapBuffersAction = new SwapBuffersAction();
-
- // Workaround for ATI driver bugs related to multithreading issues
- // like simultaneous rendering via Animators to canvases that are
- // being resized on the AWT event dispatch thread
- class DisplayOnEventDispatchThreadAction implements Runnable {
- public void run() {
- context.invokeGL(displayAction, false, initAction);
- }
- }
- private DisplayOnEventDispatchThreadAction displayOnEventDispatchThreadAction =
- new DisplayOnEventDispatchThreadAction();
- class SwapBuffersOnEventDispatchThreadAction implements Runnable {
- public void run() {
- context.invokeGL(swapBuffersAction, false, initAction);
- }
- }
- private SwapBuffersOnEventDispatchThreadAction swapBuffersOnEventDispatchThreadAction =
- new SwapBuffersOnEventDispatchThreadAction();
-}