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* Bug 642 / Refine 1ae0737f34143a5ed655bd9c4d5fe9b0437c7774: ↵Sven Gothel2012-12-221-2/+2
| | | | | | | GLCanvas.displayOnEDT: Also check null!=drawable As for 1ae0737f34143a5ed655bd9c4d5fe9b0437c7774, an animator may inject a display Runnable on the EDT before AWT destruction. In case this Runnable is executed after destruction on the EDT - it would fail.
* Fix regression of commit b8a8fc24a3afb0cb06a31504bdea1a98b8f00ef4: Cache ↵Sven Gothel2012-12-221-3/+3
| | | | ShaderState for share ctor.
* Fix Bug 642 TestJSplitPaneMixHwLw01AWT (AWT-GLCanvas); Robustness ↵Sven Gothel2012-12-221-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | GLContext/GLDrawable - Fix Bug 642 TestJSplitPaneMixHwLw01AWT On Windows platform when mixing hw/lw JSplitPanel, the GLCanvas is removed and added when splitter is moved. The lack of robustness (see below) lead to an exception. Note: Only w/ GLJPanel (no hw/lw mixing) the splitter can be moved in both direction. Only here it is guaranteed that the GL component will survive the action. - Fix AWT-GLCanvas EDT Runnable: swapBuffer().. / display(..) - Check drawable.isRealized() within the lock on the performing thread. This is not possible before issuing the EDT Runnable action since we cannot hold the lock beforehand. - Robustness GLDrawableImpl - boolean realized -> volatile boolean realized - remove 'synchronized' on isRealized() and setRealized(..) - Use dbl-checked locking on 'realized' test for swapBuffers() and setRealized(..) - Robustness GLContextImpl - Catch createImpl(..) exception and properly return CONTEXT_NOT_CURRENT
* GLContextImpl: Make createContextARBImpl/setGLFunctionAvailability more ↵Sven Gothel2012-12-211-3/+3
| | | | robost while detecting erroneous queried GL version
* Bug 651: Mesa3D: GL_INVALID_ENUM in ↵Sven Gothel2012-12-201-17/+25
| | | | | | | | | | glGetIntegerv(pname=GL_MAX_TEXTURE_IMAGE_UNITS) ; Add unit test / bisect Mesa3D This bug lies within Mesa3D (any renderer) and is fixed in commit 8dc79ae7d73cf6711c2182ff9a5d37ef6c989d23. Mesa3D Version 9.0 still exposes this bug, where 9.0.1 has it fixed w/ above commit.
* test scriptSven Gothel2012-12-161-4/+4
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* Cleanup GLContext special entries: getOffscreenContextPixelDataType(), ↵Sven Gothel2012-12-151-7/+15
| | | | | | | | | | | | | | | | | | | | | | | getOffscreenContextReadBuffer(), .. ; Add GLFBODrawable API entries for multi buffering (no impl. yet); GLJPanel 1st simplification using offscreen drawable - Cleanup GLContext special entries: getOffscreenContextPixelDataType(), getOffscreenContextReadBuffer(), .. ; - add: getDefaultReadBuffer() (-> exposed via GLBase as well) - add: isGLOrientationFlippedVertical() - add: getDefaultPixelDataType() - removed impl: getOffscreenContextPixelDataType() - removed impl: getOffscreenContextReadBuffer() - removed impl: offscreenImageNeedsVerticalFlip() - Add GLFBODrawable API entries for multi buffering (no impl. yet); - TODO: Add implementation code in GLFBODrawableImpl - GLJPanel 1st simplification using FBO - Use above new GL/GLContext entries - Fix: getNativeSurface() and getHandle() - TODO: - Remove distinction of 'pbuffer' and 'software', - Use GLDrawableFactory.createOffscreenDrawable(..) - Use GL for FBO swapping
* SWT GLCanvas: Fix sporadic drop of redraw on X11 _and_ allow using custom ↵Sven Gothel2012-12-041-3/+3
| | | | | | | | | | | | | | | | | | GLCapabilities on X11 (feature complete) To allow custom GLCapabilities, we had to use native parenting on X11 w/ a new child window. The desired visualID chosen by the users GLCapabilities is passed to the new child window. The redraw drops must be caused by the original GDK or the new child GDK window. Now we use a plain X11 child window similar to NEWT's X11 window and NewtCanvasSWT, which doesn't expose this bug. (Note: SWTAccessor/GLCanvas still contains the uncommented GDK code path for further inspection, if desired) Also added SWTNewtEventFactory to test event handling on the SWT GLCanvas w/ GearsES2. TestSWTJOGLGLCanvas01GLn tests custom GLCapabilities now. SWTEDTUtil has been moved to private: com.jogamp.newt.swt -> jogamp.newt.swt.
* Bug628: Adding unit-test 'TestNewtCanvasSWTBug628ResizeDeadlock' exposing ↵Sven Gothel2012-11-291-1/+2
| | | | | | | | | | | NewtCanvasSWT asyncExec(..) bug w/ native parenting The unit test shows, that while using JOGL's SWT GLCanvas Display's asyncExec(..) works properly, but w/ NewtCanvasSWT on Windows does not. NewtCanvasSWT differs w/: - Using native parenting [Newt GLWindow to SWT Canvas] - Processing native events in own NEWT EDT, w/ own Windows dispatch hook [For the child GLWindow only]
* SWT GLCanvas: Fix dispose bug, check for isDisposed() and add ↵Sven Gothel2012-11-291-2/+2
| | | | | | | | | | | | | | DisposeListener; Run GL tasks on current thread w/o restrictions Fix dispose bug, check for isDisposed() and add DisposeListener - Don't issue SWTAccessor.setRealized(..), since it's called implicit via super.dispose() - Check isDisposed() .. - add DisposeListener to act on parent's disposal (Shell, Composition, ..) Run GL tasks on current thread w/o restrictions + * The current thread seems to be valid for all platforms, + * since no SWT lifecycle tasks are being performed w/ this call. + * Only GL task, which are independent from the SWT threading model.
* Fix SWTEDTUtil Bug628: Perform NEWT event dispatching on SWT-EDT, due to ↵Sven Gothel2012-11-231-1/+2
| | | | | | possible triggered locking action, i.e. display(). Do the same for AWTEDTUtil. This fix actually clarifies the annotated FIXME :)
* OSX CALayer Stencil/.. Fix: In case of FBO CALayer usage, use default ↵Sven Gothel2012-11-211-5/+6
| | | | | | | | | | caps/pixelformat w/ chosen GLProfile only Using a pixelformat w/ chosen stencil for CALayer does corrupt rendering for an unknown reason, probably due to incompatible pixelformat w/ CALayer composition. This patch simply discards any special chosen caps, while only recognizing the desired GLProfile for the FBO CALayer pixelformat.
* PMVMatrix: Add 'Frustum glGetFrustum()' adding same dirty/request ↵Sven Gothel2012-11-111-2/+2
| | | | | | | | | methodology as for Mvi and Mvit Allows user to derive Frustum from updated P + MV Clarify method name for clearing all update request: - disableMviMvitUpdate() -> clearAllUpdateRequests()
* Fix GLAutoDrawable.dispose(): Dispose drawable even w/o context; ↵Sven Gothel2012-11-081-11/+12
| | | | | | | | | | | | | | | | | | | JAWTWindow.lockSurface(): Check AWT component's native peer - Fix GLAutoDrawable.dispose(): Dispose drawable even w/o context - It is possible to have the GLContext not being created (not made current), so drawable shall be disposed independent. - Merge Runnable 'postDisposeOnEDTAction' to dispose Runnable for clarity - GLDrawableHelper: Split disposeGL from invokeGLImpl for clarity - JAWTWindow.lockSurface(): Check AWT component's native peer - W/o a native peer (!isDisplayable()), JAWT locking cannot succeed. - On OSX OpenJDK 1.7, attempting to JAWT lock a peer-less component crashes the VM - MacOSXJAWTWindow.lockSurfaceImpl(): Remove redundant null checks
* Fix GLDrawableHelper.recreateGLDrawable(..): Sync GL command stream before ↵Sven Gothel2012-11-061-2/+2
| | | | | | | destruction of drawable Lack of finishing the GL command stream lead to a SIGSEGV on Windows w/ Nvidia driver where probably pending GL commands were still being processed concurrently.
* GLAutoDrawable: Refine API change of commit ↵Sven Gothel2012-11-051-2/+2
| | | | | | | | | | c002e04f848116922a1ed7bd96ead54961649bbd As suggested by Julien Gouesse, align 'enqueue(..)' method w/ 'invoke(..)': - public void enqueue(GLRunnable glRunnable); + public boolean invoke(boolean wait, List<GLRunnable> glRunnables);
* Analyzed OSX Deadlock w/ AWT Applet & CALayer: Andres Colubri's Test Case, ↵Sven Gothel2012-11-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | Commit 77db6a5c22cb4a53cf911b4caf57127770c70968 [1] - The AWT/Applet test case on OSX utilized offscreen CALayer, which is correct. [2] - the GLEventListener.display(..) method calls Frame.setTitle(".."); which is correct, but freezes when called right after GLEventListener.init(..) BUG on OSX/CALayer: If frame.setTitle() is issued right after initialization the call hangs in at apple.awt.CWindow._setTitle(Native Method) at apple.awt.CWindow.setTitle(CWindow.java:765) [1.6.0_37, build 1.6.0_37-b06-434-11M3909] Happens w/ Oracle's JRE7u9 as well! Workaround: - Set 'justInitialized' flag in GLEventListener.init(..) - Clear 'justInitialized' flag in GLEventListener.display(..) at the end - Skip Frame.setTitle(..) in GLEventListener.display(..) if 'true == justInitialized' Somebody may send a bugreport to Oracle / OpenJDK.
* TestGLCanvasAWTActionDeadlock01AWT: Reproducing OSX deadlock variation, ↵Sven Gothel2012-11-041-1/+2
| | | | using Applet as component which provokes offscreen FBO layer.
* Adding Andres Colubri's Test Case (junit'fyed), which provokes a Deadlock on ↵Sven Gothel2012-11-041-2/+2
| | | | | | | | | | | | | | | OSX - Adding a similar one w/o deadlock and less framework bits. Andres Colubri reported a test case in the forum: <http://forum.jogamp.org/Thread-blocking-issue-with-AWT-but-not-NEWT-on-OSX-td4026674.html> Which is now included as TestGLCanvasAWTActionDeadlock01AWT. A similar w/ less framework bits and w/o dealock is also included as TestGLCanvasAWTActionDeadlock00AWT. A followup commit will incl. a fix after further analysis. A commit at this point where TestGLCanvasAWTActionDeadlock01AWT still freezes on OSX is done to be able to reproduce the bug and see the fix as a patch.
* GLAutoDrawable: Fix GLEventListener lifecycle and expose more user control ↵Sven Gothel2012-11-041-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (API Change) ; Added GLDrawableUtil A GLEventListener resides in two states, initialized and uninitialized. When added to a GLAutoDrawable, it is uninitialized. A first 'display()' will issue GLEventListener's 'init(..)' which renders it initialized. This is usually accompanied by 'reshape(..)' propagating the drawable's dimension. Destruction of the GLAutoDrawable will issue GLEventListener's 'dispose(..)' which renders it uninitialized. It turns our these means of GLEventListener controls are not sufficient in case the user requires to remove and add them during the lifecycle and rendering of their GLAutoDrawable host. GLAutoDrawable 'removeGLEventListener(..)' merely removes the GLEventListener from the list, but does not complete it's lifecycle, i.e. issues 'dispose(..)' if initialized to realease GL related resources. Hence the following essential API changes are made to complete the lifecycle: + public GLEventListener disposeGLEventListener(GLEventListener listener, boolean remove); disposing a single GLEventListener, allowing it's removal from the list being optional This is demonstrated via GLDrawableUtil.swapGLContextAndAllGLEventListener(GLAutoDrawable a, GLAutoDrawable b), see below. ++++++++ Further more the following API changes were made to expose complete control of GLEventListener to the user: - public void removeGLEventListener(GLEventListener listener); + public GLEventListener removeGLEventListener(GLEventListener listener); The return value allows simple pipelining, and also delivers information whether the passed listener was actually removed. - public GLEventListener removeGLEventListener(int index) throws IndexOutOfBoundsException; + public int getGLEventListenerCount(); + public GLEventListener getGLEventListener(int index) throws IndexOutOfBoundsException; Dropping the redundant removal by index, while adding count and get methods. + public boolean getGLEventListenerInitState(GLEventListener listener); + public void setGLEventListenerInitState(GLEventListener listener, boolean initialized); Allows retrieving and setting of listener states. All in all these API changes allows a user to experience all freedoms in dealing w/ GLEventListeners hosted by GLAutoDrawable impl. and shall be future proof. Note that we have avoided the Iterator pattern due to it's overhead of temporal objects creation. The simple indexed access allows us to implement each method as an atomic operation. +++++++++++ Further more a simple enqueue(..) method has been added, allowing to just enqueue a GLRunnable w/o provoking it's execution - as invoke(..) does. This method pleases a use case where GLRunnables are batched and shall be executed later on.. public boolean invoke(boolean wait, GLRunnable glRunnable); + public void enqueue(GLRunnable glRunnable); +++++++++++ Added GLDrawableUtil, exposes utility function to rearrange GLEventListener, modifiy GLAutoDrawable, etc. GLDrawableUtil.swapGLContextAndAllGLEventListener(GLAutoDrawable a, GLAutoDrawable b) is tested and demonstrated w/ TestGLContextDrawableSwitchNEWT. Manually tested on X11, OSX and Windows.
* NEWT Windows KeyEvent: We have to store the keyChar for typed events, since ↵Sven Gothel2012-10-311-2/+2
| | | | | | keyChar from pressed/released may be wrong (Uppercase: SHIFT-1, etc ..) Partially reverts commit: b62e1d027c289877686d6008ea8dd40e4e1541ec
* MacOSXCGLContext: Fix ShaderCode instantiation .. (duh!) ; Tested via ↵Sven Gothel2012-10-311-1/+2
| | | | reparenting TestParentingFocusTraversal01AWT
* Fix Unit Tests regarding commit 55f4405dbf9253e6ca686e44c50b2cfc1af7f3eb: ↵Sven Gothel2012-10-311-2/+2
| | | | Shader program name is valid if non-zero.
* Fix ProjectFloat (Bug 633): Adding missing offset of sliced buffer usage; ↵Sven Gothel2012-10-311-1/+2
| | | | | | reduce buffer usage (performance) in favor of float[]. Thomas De Bodt reported this error and provided the unit test.
* Add OSX CALayer OpenGL 3 (core) support: Derive pixelformat from parent ↵Sven Gothel2012-10-311-7/+3
| | | | | | | | (GL3), use GL3.2 compatible shader; Use VBO in general. Covered by: Auto unit tests: TestOffscreenLayer01GLCanvasAWT, TestOffscreenLayer02NewtCanvasAWT Manual: TestGearsES2AWT '-gl3 -layered'
* Shader: Add '#define texture2D texture' for GLSL >= 130 ; TestGearsES2AWT ↵Sven Gothel2012-10-311-2/+3
| | | | add forceGL3; TextureDraw01ES2Listener uses defaultShaderCustomization()
* Fix NEWT KeyEvent: Deliver keyChar w/ pressed and released; Deliver proper ↵Sven Gothel2012-10-311-3/+5
| | | | | | | | | | | | | | | | | | | | | | modified flags and modifier-key events; Simplify Windows key handling Preface: Modifier-keys are SHIFT, CTRL, ALT and META and they have a matching modifier-bit. - Simplify Windows key handling - Employ MapVirtualKey(..) for virtual-key to character and scancode to virtual-key mappings, allowing to drop tracking of keyCode to keyChar in java code. This also removes the platform restriction of delivering keyChar at TYPED only. - Deliver keyChar w/ pressed and released - Due to the lift restriction on the Windows platform (see above), we can deliver keyChar w/ all key events on all platforms. - Deliver proper modified flags and modifier-key events All modifier-keys deliver pressed, released and typed events with their modifier-bit set. The above is covered by unit tests, which passed on X11, Windows and OSX (manual test run).
* TestNewtKeyEventAutoRepeatAWT: Wait for 'some' KeyEvents and check count; ↵Sven Gothel2012-10-291-2/+2
| | | | TestNewtKeyPressReleaseUnmaskRepeatAWT: Enable NewtCanvasAWT test
* Complete Rename NEWT KeyEvent Unit tests, commit ↵Sven Gothel2012-10-291-6/+6
| | | | 85851c9839d620bcbbd07b6ca833f1a5901831cc
* GLRendererQuirks: Add RequiresBoundVAO (w/ impl.), GLSLBuggyDiscard (todo) ; ↵Sven Gothel2012-10-281-2/+2
| | | | | | | | | | | | | | | | GLContextImpl: Bind default VAO if having quirk RequiresBoundVAO. OSX w/ OpenGL >= 3 core context implementation requires a bound VAO for vertex attribute operations, i.e. VertexAttributePointer(..). This has been experienced on OSX 10.7.5, OpenGL 3.2 core w/ Nvidia GPU and in several forum posts. Such 'behavior' violates the GL 3.2 core specification, which does not state this requirement, hence it is a bug. (Please correct me if I am wrong!) GLContextImpl works around this quirk, by generating a default VAO and binds it at 1st makeCurrent (@creation) and deletes it at destroy. This is minimal invasive since no action is required for subsequent makeCurrent or release. We assume if a user uses and binds a VAO herself, she will mind this quirk. Note: We could enhance this workaround by quering for a currently bound VAO at makeCurrent() and bind our default if none. However, we refrain from this operation to minimize the workaround and complexity.
* Fix NEWT KeyCode: Basic KeyCode Validation on X11, Windows and OSXSven Gothel2012-10-281-1/+2
| | | | | | | - X11: Add VK_QUOTE mapping - OSX: Add single shift, ctrl alt key press; Fix mapping: Command -> Windows, Option -> ALT, add BACK_QUOTE and QUOTE.
* NEWT KeyEvent (Windows, OSX): Check whether keyCode is tracked before using ↵Sven Gothel2012-10-271-2/+2
| | | | bitfield, use more IntBitfield.put(..) return value for efficiency.
* Fix Bug 631 and enhance 601: Handle multiple keys (pressed, released, types ↵Sven Gothel2012-10-271-2/+3
| | | | | | | | | | incl. auto-repeat) - Using keyCode (bit) maps to isPressed and isAutoRepeat, allowing use of multiple keys - Enhance unit test TestKeyEventOrderNEWT w/ injecting variations of 2 diff. keys - Manual tested on X11, Windows and OSX w/ and w/o auto-repeat
* Fix Bug 601 - Auto-Repeat Behavior: Adding unit tests for typed key order w/ ↵Sven Gothel2012-10-261-2/+5
| | | | | | | | | and w/o auto repeat. Incl. fix for Windows. Auto-Repeat tests recognizes whether auto-repeat could be triggered by AWT Robot. The latter is not possible on Windows, hence manual testing was required on this platform. Impact: X11, Windows and OSX produce proper key sequence incl. auto-repeat modifier mask.
* tests.sh: TestPointsNEWTSven Gothel2012-10-231-2/+2
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* Fix regression of commit 40d01bef2a1db44533472c37961aabbef68de644: Test for ↵Sven Gothel2012-10-231-2/+2
| | | | fourth element was invalid
* FixedFuncPipeline GL_POINTS: Fix gl_PointSize (attribute data format), Add ↵Sven Gothel2012-10-221-1/+2
| | | | | | | | | | | | | | GL_POINT_SOFT and dist/fade attenuation (Adding basic POINT unit tests) gl_PointSize (and all other uniform array elems) was not propagated due to wrong usage of GLUniformData component param. Due to efficiency, we use vec4[2] now and #defines in shader to easy readability. GL_POINT_SOFT uses gl_PointCoord to determnine inside/outside circle position while adding a seam of 10% in/out. This almost matches 'other' implementations and gives a nice smooth circle. !GL_POINT_SOFT produces a proper square (billboard). Point-Vertex shader takes dist/fade attentuation into account.
* NEWT / BCM-VC-IV: Fix transparency according to given capabilitiesSven Gothel2012-10-191-2/+2
| | | | Tested manual w/ TestGearsES2NEWT on Raspberry Pi
* FixedFuncPipeline: Cache current ShaderSelectionMode, update PMVMatrix ↵Sven Gothel2012-10-181-1/+0
| | | | according it's usage (update Mvi/Mvit only if lighting is being used)
* ImmModeSink: Add glColor3ub(), glColor4ub(); Add proper value conversion of ↵Sven Gothel2012-10-181-2/+5
| | | | imm. gl* functions; Default color padding is 1f; Make fields private.
* ImmModeSink: Fix buffer grow (+1 element @ named buffer), enable DEBUG_* via ↵Sven Gothel2012-10-161-2/+2
| | | | properties, drawIndices QUAD w/ proper range and add uint; FixedFunctionHook: drawIndices QUAD w/ proper range and add uint
* FixedFuncHook: Add ES2 alignment of certain GL functions, i.e. ↵Sven Gothel2012-10-121-2/+2
| | | | GL_QUAD_STRIP/GL_POLYGON/GL_QUADS mapping, glTexImage2D internalformat/format match.
* GLArrayDataClient.bindBuffer(gl, bind=true): checkSeal and init_vbo if ↵Sven Gothel2012-10-121-2/+2
| | | | required (similar sanity checks as enableBuffer())
* Adding unit tests for ImmModeSink and FixedFunctionPipeline (single & ↵Sven Gothel2012-10-121-3/+15
| | | | combinations, plus texture usage)
* Raise NEWT MouseButton Maximum from 6 -> 16 (API Change)Sven Gothel2012-10-081-3/+3
| | | | | | | | - Button 9 has been reported to be sent by Olamedia - Rearrange the input bit mask in InputEvent (API Change) - Raise the max. button number to 16
* Fix Bug 617 (part2): Workaround buggy GPU driver where FBO reattachment of ↵Sven Gothel2012-10-061-2/+2
| | | | | | | | | | | | | | | | | | | Colorbuffer w/ diff size leads to GL_FRAMEBUFFER_UNSUPPORTED. This occured at least on: - OS X 10.6.8 - GL_RENDERER NVIDIA GeForce 7300 GT OpenGL Engine - GL_VERSION 2.1 NVIDIA-1.6.36 Remedy is to catch the exception @ GLFBODrawableImpl.reset(..) and switch over to fallback 'reset' method: FBO reattachment -> FBO complete recreation Of course, the FBO recreation is noticable slower, but at least it seems to work on the offending system. Not tested on the offending system, but manually provoked GLException on FBOObject to trigger fallback, which is working here.
* Adding unit test for Bug 605 - WORKSFORME, i.e. no unwanted y-flip, so I can ↵Sven Gothel2012-10-061-6/+2
| | | | just assume it's the SW renderer, flipping.
* Refine a3cb6bb14f410f67fccf5ccd4cd7ecc66f448389, fix deadlock (regression)Sven Gothel2012-10-051-2/+12
| | | | | | | | The lock being claimed at validateGLDrawable() is 'offthread', i.e. may fight w/ AWT / Animator at reshape/display. Locking is moved 'down' to AWT runnable 'setRealizedOnEDTAction', which also double checks the drawable [again].
* Fix FBObject DEPTH_STENCIL renderbuffer usageSven Gothel2012-10-051-5/+5
| | | | | | If DEPTH_STENCIL was selected, recreate destroyed the common buffer when stencil was being 'reset'. To unify and simplify code, if DEPTH_STENCIL stencil == depth reference.
* Fix Bug 572 (2nd time): GLCanvas.validateGLDrawable() @ display() and ↵Sven Gothel2012-10-051-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | reshape() ; GLCanvas.reshape() only if drawble valid ; GLCanvas.validateGLDrawable() also test isDisplayable() ; Fix size validation ; resizeOffscreenDrawable(..) don't validate 'safe' size 1x1 - GLCanvas.validateGLDrawable() @ display() and reshape() To help users using GLCanvas w/ having a realized GLCanvas/Drawable, validateGLDrawable() is also called at reshape(). This shall ensure a valid drawable after even a non AWT-EDT issued first setVisible(). - GLCanvas.reshape() only if drawble valid Otherwise offscreen reshape attempts would happen even on unrealized drawable, which is not necessary. - GLCanvas.validateGLDrawable() also test isDisplayable() To make sure the native peer is valid, also test isDisplayable() - Fix size validation Since we have experienced odd size like 0 x -41 test each component, i.e. 0 < width && 0 < height. This is done through all JOGL/NEWT components. - resizeOffscreenDrawable(..) don't validate 'safe' size 1x1 In case method is called w/ odd size, i.e. 0 x -41, the safe size 1x1 is used. However, we cannot validate this size. Dump WARNING if odd size is detected.
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