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author | Sven Gothel <[email protected]> | 2013-03-15 19:08:22 +0100 |
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committer | Sven Gothel <[email protected]> | 2013-03-15 19:08:22 +0100 |
commit | 28c6472335b924080d638b33a28f8f4eedb459b1 (patch) | |
tree | e41dc5fec789634b4e0cb1c286385a7a2a43adab /make/config/jogl/wglext.cfg | |
parent | 538a41849192cc09da36eeaa5fa9ae10973d85b7 (diff) |
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
Diffstat (limited to 'make/config/jogl/wglext.cfg')
0 files changed, 0 insertions, 0 deletions