diff options
Diffstat (limited to 'src/jogl/classes/com')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java | 216 |
1 files changed, 113 insertions, 103 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java b/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java index 73ad97f5c..6fe9e33f6 100644 --- a/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java +++ b/src/jogl/classes/com/jogamp/opengl/swt/GLCanvas.java @@ -63,17 +63,22 @@ import org.eclipse.swt.widgets.Shell; import com.jogamp.common.GlueGenVersion; import com.jogamp.common.util.VersionUtil; -import com.jogamp.common.util.locks.LockFactory; -import com.jogamp.common.util.locks.RecursiveLock; import com.jogamp.nativewindow.swt.SWTAccessor; import com.jogamp.opengl.JoglVersion; /** * Native SWT Canvas implementing GLAutoDrawable * <p> - * FIXME: Still needs AWT for threading impl., + * FIXME: Still needs AWT for threading impl., * ie. will issue a 'wrong thread' error if runs in headless mode! * </p> + * <p> + * FIXME: If this instance runs in multithreading mode, see {@link Threading#isSingleThreaded()} (impossible), + * proper recursive locking is required for drawable/context @ destroy and display. + * Recreation etc could pull those instances while animating! + * Simply locking before using drawable/context offthread + * would allow a deadlock situation! + * </p> */ public class GLCanvas extends Canvas implements GLAutoDrawable { @@ -81,17 +86,17 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { * Flag for whether the SWT thread should be used for OpenGL calls when in single-threaded mode. This is controlled * by the setting of the threading mode to worker (do not use SWT thread), awt (use SWT thread), or false (always use * calling thread). - * + * * @see Threading - * + * * Now done dynamically to avoid early loading of gluegen library. */ //private static final boolean useSWTThread = ThreadingImpl.getMode() != ThreadingImpl.WORKER; /* GL Stuff */ private final GLDrawableHelper drawableHelper = new GLDrawableHelper(); - private GLDrawable drawable; - private GLContext context; + private volatile GLDrawable drawable; // volatile avoids locking all accessors. FIXME still need to sync destroy/display + private volatile GLContext context; // volatile avoids locking all accessors. FIXME still need to sync destroy/display /* Native window surface */ private AbstractGraphicsDevice device; @@ -100,13 +105,8 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /* Construction parameters stored for GLAutoDrawable accessor methods */ private int ctxCreationFlags = 0; - - private final GLCapabilitiesImmutable glCapsRequested; - /* - * Lock for access to GLDrawable, as used in GLCanvas, - */ - private final RecursiveLock lock = LockFactory.createRecursiveLock(); + private final GLCapabilitiesImmutable glCapsRequested; /* Flag indicating whether an unprocessed reshape is pending. */ private volatile boolean sendReshape; @@ -115,6 +115,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { * Invokes init(...) on all GLEventListeners. Assumes context is current when run. */ private final Runnable initAction = new Runnable() { + @Override public void run() { drawableHelper.init(GLCanvas.this); } @@ -122,10 +123,11 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /* * Action to handle display in OpenGL, also processes reshape since they should be done at the same time. - * + * * Assumes GLContext is current when run. */ private final Runnable displayAction = new Runnable() { + @Override public void run() { if (sendReshape) { drawableHelper.reshape(GLCanvas.this, 0, 0, getWidth(), getHeight()); @@ -137,6 +139,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /* Action to make specified context current prior to running displayAction */ private final Runnable makeCurrentAndDisplayAction = new Runnable() { + @Override public void run() { drawableHelper.invokeGL(drawable, context, displayAction, initAction); } @@ -144,6 +147,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /* Swaps buffers, assuming the GLContext is current */ private final Runnable swapBuffersAction = new Runnable() { + @Override public void run() { drawable.swapBuffers(); } @@ -151,6 +155,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /* Swaps buffers, making the GLContext current first */ private final Runnable makeCurrentAndSwapBuffersAction = new Runnable() { + @Override public void run() { drawableHelper.invokeGL(drawable, context, swapBuffersAction, initAction); } @@ -160,8 +165,9 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { * Disposes of OpenGL resources */ private final Runnable postDisposeGLAction = new Runnable() { + @Override public void run() { - context = null; + context = null; if (null != drawable) { drawable.setRealized(false); drawable = null; @@ -170,12 +176,14 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { }; private final Runnable disposeOnEDTGLAction = new Runnable() { + @Override public void run() { drawableHelper.disposeGL(GLCanvas.this, drawable, context, postDisposeGLAction); } }; private final Runnable disposeGraphicsDeviceAction = new Runnable() { + @Override public void run() { if (null != device) { device.close(); @@ -191,7 +199,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /** * Creates a new SWT GLCanvas. - * + * * @param parent * Required (non-null) parent Composite. * @param style @@ -211,7 +219,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { final GLCapabilitiesChooser chooser, final GLContext shareWith) { /* NO_BACKGROUND required to avoid clearing bg in native SWT widget (we do this in the GL display) */ super(parent, style | SWT.NO_BACKGROUND); - + GLProfile.initSingleton(); // ensure JOGL is completly initialized SWTAccessor.setRealized(this, true); @@ -228,7 +236,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { caps = new GLCapabilities(GLProfile.getDefault(device)); } glCapsRequested = caps; - + final GLDrawableFactory glFactory = GLDrawableFactory.getFactory(caps.getGLProfile()); /* Create a NativeWindow proxy for the SWT canvas */ @@ -239,17 +247,18 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { drawable.setRealized(true); context = drawable.createContext(shareWith); - + /* Register SWT listeners (e.g. PaintListener) to render/resize GL surface. */ /* TODO: verify that these do not need to be manually de-registered when destroying the SWT component */ addPaintListener(new PaintListener() { - public void paintControl(final PaintEvent arg0) { + @Override + public void paintControl(final PaintEvent arg0) { if (!drawableHelper.isExternalAnimatorAnimating()) { display(); } } }); - + addControlListener(new ControlAdapter() { @Override public void controlResized(final ControlEvent arg0) { @@ -260,211 +269,206 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { }); } + @Override public void addGLEventListener(final GLEventListener arg0) { drawableHelper.addGLEventListener(arg0); } + @Override public void addGLEventListener(final int arg0, final GLEventListener arg1) throws IndexOutOfBoundsException { drawableHelper.addGLEventListener(arg0, arg1); } /** * {@inheritDoc} + * * <p> - * Also disposes of the SWT component. + * This impl. calls this class's {@link #dispose()} SWT override, + * where the actual implementation resides. + * </p> */ + @Override public void destroy() { - drawable.setRealized(false); dispose(); } + @Override public void display() { runInGLThread(makeCurrentAndDisplayAction, displayAction); } + @Override public GLAnimatorControl getAnimator() { return drawableHelper.getAnimator(); } + @Override public boolean getAutoSwapBufferMode() { return drawableHelper.getAutoSwapBufferMode(); } + @Override public GLContext getContext() { return context; } + @Override public int getContextCreationFlags() { return ctxCreationFlags; } + @Override public GL getGL() { - final GLContext ctx = getContext(); - return (ctx == null) ? null : ctx.getGL(); + return (null == context) ? null : context.getGL(); } + @Override public void invoke(final boolean wait, final GLRunnable run) { /* Queue task for running during the next display(). */ drawableHelper.invoke(this, wait, run); } + @Override public void removeGLEventListener(final GLEventListener arg0) { drawableHelper.removeGLEventListener(arg0); } + @Override public void setAnimator(final GLAnimatorControl arg0) throws GLException { drawableHelper.setAnimator(arg0); } + @Override public void setAutoSwapBufferMode(final boolean arg0) { drawableHelper.setAutoSwapBufferMode(arg0); } + @Override public void setContext(final GLContext ctx) { - this.context = ctx; if (ctx instanceof GLContextImpl) { ((GLContextImpl) ctx).setContextCreationFlags(ctxCreationFlags); } + this.context = ctx; } + @Override public void setContextCreationFlags(final int arg0) { ctxCreationFlags = arg0; } + @Override public GL setGL(final GL arg0) { - final GLContext ctx = getContext(); - if (ctx != null) { - ctx.setGL(arg0); + if (null != context) { + context.setGL(arg0); return arg0; } return null; } + @Override public GLContext createContext(final GLContext arg0) { - lock.lock(); - try { - final GLDrawable drawable = this.drawable; - return (drawable != null) ? drawable.createContext(arg0) : null; - } finally { - lock.unlock(); - } + return (drawable != null) ? drawable.createContext(arg0) : null; } + @Override public GLCapabilitiesImmutable getChosenGLCapabilities() { return (GLCapabilitiesImmutable)proxySurface.getGraphicsConfiguration().getChosenCapabilities(); } /** * Accessor for the GLCapabilities that were requested (via the constructor parameter). - * + * * @return Non-null GLCapabilities. */ public GLCapabilitiesImmutable getRequestedGLCapabilities() { return (GLCapabilitiesImmutable)proxySurface.getGraphicsConfiguration().getRequestedCapabilities(); } + @Override public GLDrawableFactory getFactory() { - lock.lock(); - try { - final GLDrawable drawable = this.drawable; - return (drawable != null) ? drawable.getFactory() : null; - } finally { - lock.unlock(); - } + return (drawable != null) ? drawable.getFactory() : null; } + @Override public GLProfile getGLProfile() { return glCapsRequested.getGLProfile(); } + @Override public long getHandle() { - lock.lock(); - try { - final GLDrawable drawable = this.drawable; - return (drawable != null) ? drawable.getHandle() : 0; - } finally { - lock.unlock(); - } + return (drawable != null) ? drawable.getHandle() : 0; } + @Override public int getHeight() { final Rectangle clientArea = this.clientArea; if (clientArea == null) return 0; return clientArea.height; } + @Override public NativeSurface getNativeSurface() { - lock.lock(); - try { - final GLDrawable drawable = this.drawable; - return (drawable != null) ? drawable.getNativeSurface() : null; - } finally { - lock.unlock(); - } + return (drawable != null) ? drawable.getNativeSurface() : null; } + @Override public int getWidth() { final Rectangle clientArea = this.clientArea; if (clientArea == null) return 0; return clientArea.width; } + @Override public boolean isRealized() { - lock.lock(); - try { - final GLDrawable drawable = this.drawable; - return (drawable != null) ? drawable.isRealized() : false; - } finally { - lock.unlock(); - } + return (drawable != null) ? drawable.isRealized() : false; } + @Override public void setRealized(final boolean arg0) { /* Intentionally empty */ } + @Override public void swapBuffers() throws GLException { runInGLThread(makeCurrentAndSwapBuffersAction, swapBuffersAction); } // FIXME: API of update() method ? + @Override public void update() { // FIXME: display(); } + @Override public void dispose() { - lock.lock(); - try { - final Display display = getDisplay(); - - if (null != context) { - boolean animatorPaused = false; - final GLAnimatorControl animator = getAnimator(); - if (null != animator) { - // can't remove us from animator for recreational addNotify() - animatorPaused = animator.pause(); - } - if(context.isCreated()) { - if (Threading.isSingleThreaded() && !Threading.isOpenGLThread()) { - runInDesignatedGLThread(disposeOnEDTGLAction); - } else if (context.isCreated()) { - drawableHelper.disposeGL(GLCanvas.this, drawable, context, postDisposeGLAction); - } + if (null != context) { + boolean animatorPaused = false; + final GLAnimatorControl animator = getAnimator(); + if (null != animator) { + // can't remove us from animator for recreational addNotify() + animatorPaused = animator.pause(); + } + + if(context.isCreated()) { + if (Threading.isSingleThreaded() && !Threading.isOpenGLThread()) { + runInDesignatedGLThread(disposeOnEDTGLAction); + } else if (context.isCreated()) { + drawableHelper.disposeGL(GLCanvas.this, drawable, context, postDisposeGLAction); } + } - if (animatorPaused) { - animator.resume(); - } - } - if (display.getThread() == Thread.currentThread()) { - disposeGraphicsDeviceAction.run(); - } else { - display.syncExec(disposeGraphicsDeviceAction); - } - } finally { - lock.unlock(); - } - super.dispose(); + if (animatorPaused) { + animator.resume(); + } + } + final Display display = getDisplay(); + + if (display.getThread() == Thread.currentThread()) { + disposeGraphicsDeviceAction.run(); + } else { + display.syncExec(disposeGraphicsDeviceAction); + } + super.dispose(); } /** @@ -473,8 +477,8 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { * OpenGL worker thread depending on the state of {@link #useSWTThread}. Otherwise this always returns true because * the threading model is user defined. * <p> - * TODO: should this be moved to {@link Threading}? - * + * FIXME: Redundant .. remove! Merge isRenderThread, runInGLThread and runInDesignatedGLThread + * * @return true if the calling thread is the correct thread to execute OpenGL calls in, false otherwise. */ protected boolean isRenderThread() { @@ -494,13 +498,14 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /** * Runs the specified action in the designated OpenGL thread. If the current thread is designated, then the * syncAction is run synchronously, otherwise the asyncAction is dispatched to the appropriate worker thread. - * + * * @param asyncAction * The non-null action to dispatch to an OpenGL worker thread. This action should not assume that a * GLContext is current when invoked. * @param syncAction * The non-null action to run synchronously if the current thread is designated to handle OpenGL calls. * This action may assume the GLContext is current. + * FIXME: Redundant .. remove! Merge isRenderThread, runInGLThread and runInDesignatedGLThread */ private void runInGLThread(final Runnable asyncAction, final Runnable syncAction) { if (Threading.isSingleThreaded() && !isRenderThread()) { @@ -515,9 +520,10 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { /** * Dispatches the specified runnable to the appropriate OpenGL worker thread (either the SWT event dispatch thread, * or the OpenGL worker thread depending on the state of {@link #useSWTThread}). - * + * * @param makeCurrentAndRunAction * The non-null action to dispatch. + * FIXME: Redundant .. remove! Merge isRenderThread, runInGLThread and runInDesignatedGLThread */ private void runInDesignatedGLThread(final Runnable makeCurrentAndRunAction) { if (ThreadingImpl.getMode() != ThreadingImpl.Mode.ST_WORKER) { @@ -529,7 +535,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { } } - + public static void main(final String[] args) { System.err.println(VersionUtil.getPlatformInfo()); System.err.println(GlueGenVersion.getInstance()); @@ -537,7 +543,7 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { System.err.println(JoglVersion.getInstance()); System.err.println(JoglVersion.getDefaultOpenGLInfo(null).toString()); - + final GLCapabilitiesImmutable caps = new GLCapabilities( GLProfile.getDefault(GLProfile.getDefaultDevice()) ); final Display display = new Display(); final Shell shell = new Shell(display); @@ -547,13 +553,17 @@ public class GLCanvas extends Canvas implements GLAutoDrawable { final GLCanvas canvas = new GLCanvas(shell, 0, caps, null, null); canvas.addGLEventListener(new GLEventListener() { + @Override public void init(final GLAutoDrawable drawable) { GL gl = drawable.getGL(); System.err.println(JoglVersion.getGLInfo(gl, null)); } - public void reshape(final GLAutoDrawable drawable, final int x, final int y, final int width, final int height) {} + @Override + public void reshape(final GLAutoDrawable drawable, final int x, final int y, final int width, final int height) {} + @Override public void display(final GLAutoDrawable drawable) {} - public void dispose(final GLAutoDrawable drawable) {} + @Override + public void dispose(final GLAutoDrawable drawable) {} }); shell.open(); canvas.display(); |