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authorSven Gothel <[email protected]>2013-02-16 03:55:22 +0100
committerSven Gothel <[email protected]>2013-02-16 03:55:22 +0100
commita94ff9252df66c303f48489c3e8926104941465c (patch)
tree1269a332e763c40ac97b1f137523e3ced3f6aaaa /make/scripts/rsync2here.sh
parentd178475967536f4d1e58fd6e0be49b03fe4cd4b7 (diff)
Fix Bug 691 (part-3): NSOpenGLLayer::openGLContextForPixelFormat(..) on main-thread deadlock'ed due to locked shared context
NSOpenGLLayer::openGLContextForPixelFormat(..) is performed on main-thread at 1st NSOpenGLLayer display method. This happened irregulary, i.e. sometimes (T0) right after NSOpenGLLayer creation and attachSurfaceLayer()/AddCASublayer(..), sometimes later (T1). NSOpenGLLayer::openGLContextForPixelFormat(..) uses the passed shared user context. The shared user context is locked at NSOpenGLLayer's creation (T0) and if performed at this early time the call deadlocks due to pthread_mutex wait for the shared user context. This fix performs NSOpenGLLayer creation and layer attachment while the shared user context is kept unlocked and enforces NSOpenGLLayer display and hence NSOpenGLLayer::openGLContextForPixelFormat(..). Added CGL.setNSOpenGLLayerEnabled(..) to enable/disable NSOpenGLLayer - currently not used. - Passed AddRemove tests for GLCanvas/Swing and GLWindow/NewtCanvasAWT w/ 100 loops on Java6 and Java7 on OSX. - Passed Instruments Leaks test w/ 10 loops on Java6 and Java7
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