From 28c6472335b924080d638b33a28f8f4eedb459b1 Mon Sep 17 00:00:00 2001 From: Sven Gothel Date: Fri, 15 Mar 2013 19:08:22 +0100 Subject: Remodel OSX/CALayer Threading (commit 896e8b021b39e9415040a57a1d540d7d24b02db1): Run on main-thread w/o blocking ; Misc Changes Commit 896e8b021b39e9415040a57a1d540d7d24b02db1 moved all native CALayer calls to the current thread to avoid deadlocks. Even though this seemed to be fine at least resource GC (release/dealloc calls) were issued very late in time, probably due to multithreading synchronization of JAWT and/or OSX API. Example: Our 'TestAddRemove01GLCanvasSwingAWT' test didn't freed CALayer resources incl. GL ctx when destroying the objects (AWT Frame, GLCanvas, ..), leading to resource starvation .. eventually. Remedy is a compromise of behavior before commit 896e8b021b39e9415040a57a1d540d7d24b02db1 and that commit, i.e. to run CALayer lifecycle methods on main-thread, but do not block! The careful part within MacOSXCGLContext.associateDrawable(..) performs the following block on main-thread: - lock the context - create NSOpenGLLayer (incl. it's own shared GL context and the DisplayLink) - attach NSOpenGLLayer to root CALayer - unlock the context Due to the GL ctx locking, this async offthread operation is safe within our course of operations. Details: - NSOpenGLContext - Context and CVDisplayLink creation at init - Call [ctx update] if texture/frame size changed - 'waitUntilRenderSignal' uses default TO value if given TO is 0 to avoid deadlocks +++ Misc Changes: - Fix object type detection: isMemberOfClass -> isKindOfClass - OSXUtil_isNSView0 OSXUtil_isNSWindow0, CGL_isNSOpenGLPixelBuffer - MacOSXCGLDrawable/MacOSXPbufferCGLDrawable: remove getNSViewHandle() method. MacOSXCGLContext uses common code to detect nature of the drawable handle. - MacOSXCGLContext/CALayer: Use safe screenVSyncTimeout values, never 0 to avoid deadlock! - JAWTWindow.invalidate: Call detachSurfaceLayer() if not done yet --- .../classes/com/jogamp/nativewindow/awt/JAWTWindow.java | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/nativewindow/classes/com/jogamp') diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java index 3e5e629b6..15a0f550f 100644 --- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java +++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java @@ -134,6 +134,13 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface, } protected synchronized void invalidate() { + if(DEBUG) { + System.err.println("JAWTWindow.invalidate()"); + // Thread.dumpStack(); + } + if( isSurfaceLayerAttached() ) { + detachSurfaceLayer(); + } invalidateNative(); jawt = null; isOffscreenLayerSurface = false; -- cgit v1.2.3