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Main-Thread
Previous code created, set and unset the root CALayer on the current thread,
which lead to a very delayed destruction of the root CALayer w/.
With Java7 this lead to a possible resource starvation in certain situations,
since Java7 uses an CAOpenGLLayer.
Similar w/ f354fb204d8973453c538dda78a2c82c87be61dc,
creation, set and unset is operated on main-thread.
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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
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need for explicit call
- OffscreenLayerSurface.layoutSurfaceLayer() removed, no more required
- JAWTWindow adds a ComponentListener, which issues FixCALayerLayout() at resized, moved and shown.
- MyNSOpenGLLayer no more requires fix*Size() methods
- MyNSOpenGLLayer::setDedicatedSize() need no explicit CATransaction, performed by caller.
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RunOnMainThread(waitUntilDone:=true,..) can deadlock the main-thread if called from AWT-EDT,
since the main-thread may call back to AWT-EDT while injecting a new main-thread task.
This patch revises all RunOnMainThread CALayer usage, resulting in only one required left:
- OSXUtil.AddCASublayer() w/ waitUntilDone:=false
Hence the CALayer code has no more potential to deadlock main-thread/AWT-EDT.
OSXUtil.AddCASublayer() must be performed on main-thread, otherwise the
CALayer attachment will fail - no visible rendering result.
+++
Note: A good trigger to test this deadlock is to magnify/zoom
the OSX desktop (click background + ctrl-mouse_wheel)
before running some unit tests.
TestGLCanvasAWTActionDeadlock01AWT and TestAddRemove02GLWindowNewtCanvasAWT
also have the potential to trigger the mentioned deadlock.
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(Part 4)
Note:
- GLEventListenerState preservs the GLAutoDrawable state,
i.e. GLContext, all GLEventListener and the GLAnimatorControl association.
- GLEventListenerState may be utilized to move the state from a dying GLAutoDrawable,
to be moved to a new created GLAutoDrawable at a later time.
- GLEventListenerState will be made public soon.
+++
Exessive unit tests cover the new feature, tested manually on GNU/Linux/X11 and OSX(Java6/Java7).
+++
- GLAutoDrawable
- Change 'setContext(..)' to allow the destruction of the unbound old context:
'setContext(GLContext newCtx)' -> 'setContext(GLContext newCtx, boolean destroyPrevCtx)'
- Implementations: Properly implement 'setRealized(..)' incl. obeying threading constraints if exists.
Method is being utilized at least for GLEventListenerState.moveTo(..)
to unrealize and realize the drawable resources.
+++
Fix propagation of GLContext/GLDrawable association change (Bottom -> Top):
GLDrawableImpl.associateContext
GLContextImpl.associateDrawable
GLContextImpl.makeCurrent
GLContextImpl.destroy
GLContext.setGLDrawable
...
GLDrawableHelper.switchContext
GLAutoDrawble.setContext
associateDrawable(..)/associateContext(..) unifies and hence:
- GLContextImpl.contextRealized() (removed)
- GLDrawableImpl.contextRealized() (removed)
- GLDrawableImpl.associateContext(..) (merged)
- MacOSXCGLContext.drawableChangedNotify(..) (removed)
+++
- EGLUpstreamSurfaceHook.evalUpstreamSurface() validates the surface's device for reusage,
which is valid in case of GLEventListenerState.moveTo(..)
- MacOSXCGLContext.NSOpenGLImpl: pixelFormat replaces NSOpenGLLayerPfmt and has simplified lifecycle [create..destroy],
while native NSOpenGLLayer code only holds the reference until released.
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- Fix CALayer animation:
- All CALayer animations are set to nil via overriding 'actionForKey'
- Fix CALayer pos/size bug:
- Fix root and sub CALayer position to 0/0 and size on the main-thread w/o blocking.
- If the sub CALayer implements the Objective-C NativeWindow protocol NWDedicatedSize (e.g. JOGL's MyNSOpenGLLayer),
the dedicated size is passed to the layer, which propagates it appropriately.
- On OSX/Java7 our root CALayer's frame position and size gets corrupted by its NSView,
hence we have created the NWDedicatedSize protocol.
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where our CALayer is moved out of the visible area
- same erroneous behavior for GLCanvas and NewtCanvasAWT
- sized-frame: Set framesize and validate() it
- sized-component: Set component preferred size and call frame.pack()
- added workaround 'OffscreenLayerSurface.layoutSurfaceLayer()' to fix CALayer size, which snaps for:
- OK initial size before setVisible: sized-frame and sized-component
- OK resize w/ sized-frame
- OK manual frame resize
- Invisible: w/ sized-component after setVisible()
++
- CALayer-Sublayer (GL) has additional retain/release when added/removed
to be on safe side.
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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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'CGL.releaseNSOpenGLLayer' triggers release - but very late w/ AWT usage.
OSXUtil_RemoveCASublayer0's added '[subLayer release]' in commit f6e6fab2a7ddfb5c9b614cb072c27ff697629161
is wrong, since 'CGL.releaseNSOpenGLLayer' actually does trigger it's release.
This was not seen w/ AWT tests, since it happens very later.
A NewtCanvasAWT test disclosed this error -> removed that extra release call.
The culprit for the late release w/ AWT usage was CGL.createNSOpenGLLayer's call in the current thread.
Moving it to the Main-Thread fixed the problem.
All CALayer lifecycle calls are issued on the Main-Thread now.
NSOpenGLLayer's CVDisplayLink OpenGL fitting via 'CVDisplayLinkSetCurrentCGDisplayFromOpenGLContext'
is now performed at it's context creation in 'NSOpenGLLayer::openGLContextForPixelFormat'.
The 'extra' release of the NSOpenGLLayer's NSOpenGLContext as introduced in commit f6e6fab2a7ddfb5c9b614cb072c27ff697629161
is still valid.
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Layers and native GL-Context are _not_ Released ; Java Side wait for Main-Thread
- Fix Bug 690: Occasional Freeze on CVDisplayLinkStop
- NSOpenGLLayer.disableAnimation() shall not claim the renderLock mutex,
since the CVDisplayLink callback could be waiting for the lock.
This waiting callback could freeze the call to CVDisplayLinkStop.
- Fix Bug 691: Layers and native GL-Context are _not_ Released
- Following proper release cycle:
Context unrealized:
- JAWTWindow.detachSurfaceLayer() -> OSXUtil.RemoveCASublayer(..)
- CGL.releaseNSOpenGLLayer(..)
JAWTWindow.destroy()
- MacOSXJAWTWindow.UnsetJAWTRootSurfaceLayer(..)
- OSXUtil.DestroyCALayer(..)
- 'Magic' CALayer release calls (w/o manual retain beforehand) at:
- OSXUtil.RemoveCASublayer(..): [subLayer release]
- MacOSXJAWTWindow.UnsetJAWTRootSurfaceLayer(..): [rootLayer release]
- OSXUtil.DestroyCALayer(..): [rootLayer release]
- 'Magic' NSOpenGLLayer's NSOpenGLContext dealloc:
- [NSOpenGLContext clearDrawable]
- CGLDestroyContext( [NSOpenGLContext CGLContextObj] )
- Java Side wait for Main-Thread
- Waiting for the delegated Main-Thread on the Java side eases debugging
and won't block the Main-Thread in native code.
- Utilizing this for all CALayer calls
Test case: TestGLCanvasAddRemove01SwingAWT
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Propagate drawable change to MacOSXCGLContext where either context/NSView or context/NSOpenGLLayer
association needs to get updated.
Fixes drawable/context switch.
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(GL3), use GL3.2 compatible shader; Use VBO in general.
Covered by:
Auto unit tests: TestOffscreenLayer01GLCanvasAWT, TestOffscreenLayer02NewtCanvasAWT
Manual: TestGearsES2AWT '-gl3 -layered'
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pbuffer/FBO revalidation/redraw; Don't sync @ needsDisplay
Simplified pbuffer replacement:
Simply keep holding the pbuffer reference in native code
until receiving newPBuffer @ swap.
The newPBuffer will be established @draw method.
This allows removing interaction at destroy pbuffer,
which caused garbage and crash.
Remove pbuffer swap garbage
See above.
Split pbuffer/FBO revalidation/redraw
Don't sync @ needsDisplay
- No need to sync @ repaint command setNSOpenGLLayerNeedsDisplay*
since we use volatiles and all lifecycle action is
done @draw -> faster
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NSOpenGLContext::setView(NULL || incomplete-view) ; Add missing [ctx release] in MyNSOpenGLLayer ; Misc
NSOpenGLContext::setView(NULL || incomplete-view) was called on 2 occasions:
[1] - MacOSXCGLContext native createContext
[2] - NSOpenGLLayer internals
For [1], we simply don't call setView(..) ourselfs in case view is NULL or incomplete (invisible)
For [2], we need to wrap the class 'MyNSOpenGLContext:NSOpenGLContext' and capture setView(NULL)
++
Add missing [ctx release] in MyNSOpenGLLayer, otherwise resource won't get dealloc'ed
+++
Misc:
- MacOSXCGLContext. contextRealized(true): set pbuffer -> ctx, otherwise 1st makeCurrent call will not catch it
- MacOSXOnscreenCGLContext: don't add ContextUpdater to invisible ProxySurface's (dummy window)
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GLOffscreenAutoDrawable.FBO and as an OffscreenLayerSurface's drawable (OSX) - Fix Bugs 569 and 599
Summary:
=========
The new FBObject based GLFBODrawable implementation allows the seamless utilization of
FBO offscreen rendering in single buffer, double buffer and MSAA mode.
The GLFBODrawable uses a parent drawable based on a
dummy surface to allow a GLOffscreenAutoDrawable.FBO creation
or a mutable surface supporting an existing offscreen layer surface (OSX CALayer).
Offscreen GLDrawable's and GLOffscreenAutoDrawable's can be selected via the
GLCapabilities. If simply !onscreen is selected in the caps instance w/o enabling FBO, PBuffer or Bitmap,
the factory will automatically choose regarding availability:
FBO > PBuffer > Bitmap
Double buffering is supported in MSAA more (intrinsic) and explicit in non MSAA.
It is preferred when delivering resources (texture id's or framebuffer names)
to a shared GLContext.
This is demonstrated in (emulates our OSX CALayer implementation):
TestFBOOffThreadSharedContextMix2DemosES2NEWT,
TestFBOOnThreadSharedContext1DemoES2NEWT
and with the OSX JAWT OffscreenLayerSurface itself. FBO is the preferred choice.
+++
Offscreen drawables can be resized while maintaining a bound GLContext (e.g. w/ GLAutoDrawable).
Previously both, drawable and context, needed to be destroyed and recreated at offscreen resize.
Common implementation in GLDrawableHelper is used in the implementations
(NEWT's GLWindow, AWT GLCanvas, SWT GLCanvas).
+++
Tested:
=======
Manually run all unit tests on:
- Linux x86_64 NVidia/AMD/Mesa3d(ES)
- OSX x86_64 NVidia
- Windows x86_64 NVidia
- Android arm Mali-400/Tegra-2
No regressions.
Disclaimer:
===========
This feature is committed almost in one patch.
Both previous commits were introducing / fixing the capabilities behavior:
90d45928186f2be99999461cfe45f76a783cc961
9036376b7806a5fc61590bf49404eb71830de92f
I have to appologize for the huge size and impact (files and platforms) of this commit
however, I could not find a better way to inject this feature in one sane piece.
NativeWindow Details:
=====================
Complete decoupling of platform impl. detail of surfaces
implementing ProxySurface. Used to generalize dummy surfaces and EGL surfaces
on top of a native platform surface.
- ProxySurface.UpstreamSurfaceHook -> UpstreamSurfaceHook
- abstract class ProxySurface -> interface ProxySurface + ProxySurfaceImpl
- Misc. implementations
JOGL Details:
=====================
FBOObject: API Change / Simplification & Usability
- Removed reference counter to remove complexity, allow user to choose.
- Add 'dispose' flag for detachColorbuffer(..), allowing to keep attachment alive
- Fix equals operation of Attachment
- Check pre-exising GL errors
- Interface Colobuffer gets lifecycle methods
- Add static factory methods to create Attachments w/o FBObject instance
- Reset:
- Clip min size to 1
- Keep alive samplingSink, i.e. don't issue resetMSAATexture2DSink(..).
It gets called at syncFramebuffer()/use(..) later on before actual usage.
This allows the consumer to utilize the GL_FRONT buffer until (e.g.) swap.
- misc bugfixes
GLOffscreenAutoDrawable: API Change
- Reloc and interfacing
- class com.jogamp.opengl.OffscreenAutoDrawable -> javax.media.opengl.*
interfaces GLOffscreenAutoDrawable extends GLAutoDrawable
GLOffscreenAutoDrawable.FBO extends GLOffscreenAutoDrawable, GLFBODrawable
- Added general implementation and FBO specialization
- Replacing GLPBuffer (deprecated) .. usable for any offscreen GLDrawable via factory
GLAutoDrawable:
- Add 'GLDrawable getDelegatedDrawable()'
- Refine documentation of setContext(..), remove disclaimer and fixme tags
GLDrawableFactory:
- Refine API doc and it's selection mechanism for offscreen.
- Add createOffscreenDrawable(..)
- Add createOffscreenAutoDrawable(..)
- Add canCreateFBO(..)
- Mark createGLPbuffer(..) deprectated
Mark GLPBuffer deprecated
New: GLFBODrawable extends GLDrawable
GLCanvas (AWT and SWT): Add offscreen resize support w/o GLContext recreation
GLAutoDrawableBase .. GLWindow:
- Add offscreen resize support w/o GLContext recreation
- Remove double swapBuffer call
-
GLBase/GLContext:
- Add:
- boolean hasBasicFBOSupport()
- boolean hasFullFBOSupport()
- int getMaxRenderbufferSamples()
- boolean isTextureFormatBGRA8888Available()
GLContext: Fix version detection and hasGLSL()
- Version detection in setGLFunctionAvailability(..)
- Query GL_VERSION ASAP and parse it and compare w/ given major/minor
- Use parsed version if valid and lower than given _or_ given is invalid.
- Use validated version for caching (procaddr, ..), version number, etc.
- Fix hasGLSL()
Since 'isGL2ES2()' is true if 'isGL2()'
and the latter simply alows GL 1.*, we confine the result to a GL >= 2.0
on desktops. FIXME: May consider GL 1.5 w/ extensions.
- return isGL2ES2();
+ return isGLES2() ||
+ isGL3() ||
+ isGL2() && ctxMajorVersion>1 ;
GLDrawableImpl:
- Add 'associateContext(GLContext, boolean)' allowing impl.
to have a (weak) reference list of bound context.
This is was pulled up from the OSX specific drawable impl.
- swapBuffersImpl() -> swapBuffersImpl(boolean doubleBuffered)
and call it regardless of single buffering.
This is required to propagate this event to impl. properly,
i.e. FBODrawable requires a swap notification.
- Clarify 'contextMadeCurrent(..)' protocol
GLDrawableHelper:
- Add resize and recreate offscreen drawable util method
- Simplify required init/reshape calls for GLEventListener
-
GLGraphicsConfigurationUtil:
- fixWinAttribBitsAndHwAccel: Reflect sharede context hw-accel bits
- OSX has no offscreen bitmap, use pbuffer
- use proper offscreen auto selection if offscreen and no modes are set
EGL Context/Drawable/DrawableFactory: Abstract native platform code out of base classes
- Use EGLWrappedSurface w/ UpstreamSurfaceHook to handle upstream (X11, WGL, ..)
lifecycle - in case the EGL resource is hooked up on it.
Invisible dummy surfaces: All platforms
- size is now reduced to 64x64 and decoupled of actual generic mutable size
- fix device lifecycle, no more leaks
+++
OSX
====
Enable support for GLFBODrawableImpl in offscreen CALayer mode
- NSOpenGLImpl: hooks to calayer native code
- calayer code:
- allows pbuffer and texures (FBO)
- decouple size and draw calls avoiding flickering
- enable auto resize of calayer tree
MacOSXCGLContext:
- NSOpenGLImpl:
- Fix false pbuffer 'usage', validate the pointer
- If !pbuffer, copy other window mode bits of caps
-
MacOSXCGLGraphicsConfiguration:
- Only assume pbuffer if !onscreen
- Remove reference of native pixelformat pointer
Native code:
- use 'respondsToSelector:' query before calling 'new' methods
avoiding an error message where unsuported (prev. OSX versions)
- if monitor refresh-rate is queried 0, set to default 60hz
- add missing NSAutoreleasePool decoration
+++
Android / NEWT:
===============
Issue setVisible(..) w/o wait, i.e. queue on EDT,
@Android surfaceChanged() callback. Otherwise we could deadlock:
setVisible(..) -> EDT -> setVisibleImpl(..) -> 'GL-display'.
the latter may may cause havoc while Android-EDT is blocked [until it's return].
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