Qt-jambi-interest Archive, September 2006
Problems with QGLWidget/QGLContext
Message 1 in thread
Hi!
I've produced a VM crash when trying to assign a QGLContext with a null
QPaintDevice to a QGLWidget in its constructor. In that case the VM crashes
with the log I've appended. Since the crash seems to be in
QGLContext::isValid() I blatantly assume that this a bug in Qt (never ever
crash the Java VM hard, no matter what).
My second issue may be more obscure in nature, but it is important. I want to
create a QGLContext with a certain format, so I need to create that object
and pass it to a QGLWidget. However, the QGLContext wants a QPaintDevice as
second argument to its constructor. Now what should that be? In Java I cannot
come up with a way to initialise that in a way that has the QGLWidget as a
paint device for the QGLContext. I'm a bit confused here. What would you
suggest?
OT: I'm porting a program from SWT to Qt here and I find that the program
sourcecode is getting shorter and shorter with every piece I convert. I must
say that I'm really happy to see the level of maturity and completeness in Qt
that SWT still lacks and which forced me to work around lots of limitations
(did you know that the SWT spinner cannot handle negative numbers?).
Regards,
Gregor
#
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# SIGSEGV (0xb) at pc=0x7bf87d07, pid=16875, tid=3084924592
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0_08-b03 mixed mode)
# Problematic frame:
# C [libQtOpenGL.so.4+0x12d07] _ZNK10QGLContext7isValidEv+0x7
#
--------------- T H R E A D ---------------
Current thread (0x0805d810): JavaThread "main" [_thread_in_native, id=16875]
siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00000004
Registers:
EAX=0x00000000, EBX=0x7bfa2298, ECX=0x00000009, EDX=0x00000001
ESP=0xbff214f8, EBP=0xbff21504, ESI=0x08315308, EDI=0x0828be50
EIP=0x7bf87d07, CR2=0x00000004, EFLAGS=0x00010202
Top of Stack: (sp=0xbff214f8)
0xbff214f8: 7bf88a78 00000000 7bfa2298 bff215a4
0xbff21508: 7bf984a8 0828be50 00000009 00000001
0xbff21518: 00000001 0823e8c0 bff21534 bff21564
0xbff21528: 7d244b0e bff2153c 0828be50 0828be50
0xbff21538: 083045e8 00000009 083045e8 bff215a4
0xbff21548: 7d16128f 083045e8 00000000 bff2157c
0xbff21558: 7d579780 083045e8 00040103 01f215a4
0xbff21568: 0828be50 00000000 00040103 bff215a4
Instructions: (pc=0x7bf87d07)
0x7bf87cf7: 90 90 8d b4 26 00 00 00 00 55 89 e5 8b 45 08 5d
0x7bf87d07: 8b 40 04 0f b6 40 14 83 e0 01 c3 8d b4 26 00 00
Stack: [0xbfd26000,0xbff26000), sp=0xbff214f8, free space=2029k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [libQtOpenGL.so.4+0x12d07] _ZNK10QGLContext7isValidEv+0x7
C [libQtOpenGL.so.4+0x234a8] _ZN16QGLWidgetPrivate4initEP10QGLContextPK9QGLWidget+0xb8
C [libQtOpenGL.so.4+0x13729] _ZN9QGLWidgetC2EP10QGLContextP7QWidgetPKS_6QFlagsIN2Qt10WindowTypeEE+0x109
C [libcom_trolltech_qt_opengl.so.1.0.0+0x17686] _ZN22QtJambiShell_QGLWidgetC1EP10QGLContextP7QWidgetPK9QGLWidget6QFlagsIN2Qt10WindowTypeEE+0x46
C [libcom_trolltech_qt_opengl.so.1.0.0+0x1c9dc] Java_com_trolltech_qt_opengl_QGLWidget__1_1qt_1QGLWidget_1QGLContext_1QWidget_1QGLWidget_1int__JJJI+0xbc
j com.trolltech.qt.opengl.QGLWidget.__qt_QGLWidget_QGLContext_QWidget_QGLWidget_int(JJJI)V+0
j com.trolltech.qt.opengl.QGLWidget.<init>(Lcom/trolltech/qt/opengl/QGLContext;Lcom/trolltech/qt/gui/QWidget;Lcom/trolltech/qt/opengl/QGLWidget;I)V+47
j com.trolltech.qt.opengl.QGLWidget.<init>(Lcom/trolltech/qt/opengl/QGLContext;Lcom/trolltech/qt/gui/QWidget;Lcom/trolltech/qt/opengl/QGLWidget;)V+5
j ml.plugins.ui.view.Viewport.<init>(Lcom/trolltech/qt/gui/QWidget;Lml/plugins/ui/view/Viewport;)V+6
j ml.plugins.ui.view.ViewWindowSpace.createViewport(Lcom/trolltech/qt/gui/QWidget;Lml/plugins/ui/view/Viewport;)Lml/plugins/ui/view/Viewport;+10
j ml.plugins.ui.view.ViewWindowSpace.setupFourPaneView()V+42
j ml.plugins.ui.view.ViewWindowSpace.<init>(Lcom/trolltech/qt/gui/QWidget;)V+21
j ml.plugins.ui.view.ViewWindowSpaceFactory.createNew(Lcom/trolltech/qt/gui/QWidget;)Lml/ui/core/View;+5
j ml.ui.core.ViewManager.getView(Lcom/trolltech/qt/gui/QWidget;Ljava/lang/String;)Lml/ui/core/View;+40
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+359
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+211
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+76
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+76
j ml.ui.core.ApplicationWindow.<init>(Lml/ui/core/FrameLayout;Z)V+48
j ml.core.State.createMainWindow()V+15
j ml.ML3D.<init>([Ljava/lang/String;)V+65
j ml.ML3D.main([Ljava/lang/String;)V+5
v ~StubRoutines::call_stub
V [libjvm.so+0x17a75c]
V [libjvm.so+0x28afd8]
V [libjvm.so+0x17a58f]
V [libjvm.so+0x1a4e32]
V [libjvm.so+0x196042]
C [java+0x1873]
C [libc.so.6+0x1587c] __libc_start_main+0xdc
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j com.trolltech.qt.opengl.QGLWidget.__qt_QGLWidget_QGLContext_QWidget_QGLWidget_int(JJJI)V+0
j com.trolltech.qt.opengl.QGLWidget.<init>(Lcom/trolltech/qt/opengl/QGLContext;Lcom/trolltech/qt/gui/QWidget;Lcom/trolltech/qt/opengl/QGLWidget;I)V+47
j com.trolltech.qt.opengl.QGLWidget.<init>(Lcom/trolltech/qt/opengl/QGLContext;Lcom/trolltech/qt/gui/QWidget;Lcom/trolltech/qt/opengl/QGLWidget;)V+5
j ml.plugins.ui.view.Viewport.<init>(Lcom/trolltech/qt/gui/QWidget;Lml/plugins/ui/view/Viewport;)V+6
j ml.plugins.ui.view.ViewWindowSpace.createViewport(Lcom/trolltech/qt/gui/QWidget;Lml/plugins/ui/view/Viewport;)Lml/plugins/ui/view/Viewport;+10
j ml.plugins.ui.view.ViewWindowSpace.setupFourPaneView()V+42
j ml.plugins.ui.view.ViewWindowSpace.<init>(Lcom/trolltech/qt/gui/QWidget;)V+21
j ml.plugins.ui.view.ViewWindowSpaceFactory.createNew(Lcom/trolltech/qt/gui/QWidget;)Lml/ui/core/View;+5
j ml.ui.core.ViewManager.getView(Lcom/trolltech/qt/gui/QWidget;Ljava/lang/String;)Lml/ui/core/View;+40
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+359
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+211
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+76
j ml.ui.core.ApplicationWindow.buildLayoutNode(Lml/ui/core/LayoutNode;Lcom/trolltech/qt/gui/QWidget;)Lcom/trolltech/qt/gui/QWidget;+76
j ml.ui.core.ApplicationWindow.<init>(Lml/ui/core/FrameLayout;Z)V+48
j ml.core.State.createMainWindow()V+15
j ml.ML3D.<init>([Ljava/lang/String;)V+65
j ml.ML3D.main([Ljava/lang/String;)V+5
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x082abd08 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=16936]
0x083135f0 JavaThread "Thread-2" daemon [_thread_blocked, id=16920]
0x081fd420 JavaThread "Thread-0" daemon [_thread_blocked, id=16897]
0x080d3bc8 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=16895]
0x080d2508 JavaThread "CompilerThread0" daemon [_thread_blocked, id=16894]
0x080d11e8 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=16893]
0x080cf320 JavaThread "JDWP Command Reader" daemon [_thread_in_native, id=16890]
0x080cde20 JavaThread "JDWP Event Helper Thread" daemon [_thread_blocked, id=16889]
0x080cc360 JavaThread "JDWP Transport Listener: dt_socket" daemon [_thread_blocked, id=16888]
0x080bce78 JavaThread "Finalizer" daemon [_thread_blocked, id=16884]
0x080bc1b0 JavaThread "Reference Handler" daemon [_thread_blocked, id=16883]
=>0x0805d810 JavaThread "main" [_thread_in_native, id=16875]
Other Threads:
0x080b94b8 VMThread [id=16882]
0x080d5090 WatcherThread [id=16896]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap
def new generation total 576K, used 479K [0x7e590000, 0x7e630000, 0x820a0000)
eden space 512K, 81% used [0x7e590000, 0x7e5f7fe0, 0x7e610000)
from space 64K, 100% used [0x7e620000, 0x7e630000, 0x7e630000)
to space 64K, 0% used [0x7e610000, 0x7e610000, 0x7e620000)
tenured generation total 1892K, used 1785K [0x820a0000, 0x82279000, 0xae590000)
the space 1892K, 94% used [0x820a0000, 0x8225e560, 0x8225e600, 0x82279000)
compacting perm gen total 10240K, used 10130K [0xae590000, 0xaef90000, 0xb2590000)
the space 10240K, 98% used [0xae590000, 0xaef74818, 0xaef74a00, 0xaef90000)
No shared spaces configured.
Dynamic libraries:
08048000-08057000 r-xp 00000000 03:05 22301557 /opt/sun-jdk-1.5.0.08/bin/java
08057000-08059000 rwxp 0000e000 03:05 22301557 /opt/sun-jdk-1.5.0.08/bin/java
08059000-08a08000 rwxp 08059000 00:00 0 [heap]
7a8d8000-7a8db000 ---p 7a8d8000 00:00 0
7a8db000-7a959000 rwxp 7a8db000 00:00 0
7a959000-7a9c0000 r-xp 00000000 03:05 22302097 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libfontmanager.so
7a9c0000-7a9ca000 rwxp 00067000 03:05 22302097 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libfontmanager.so
7a9ca000-7a9ce000 rwxp 7a9ca000 00:00 0
7a9ce000-7a9fc000 r-xp 00000000 03:05 22302085 /opt/sun-jdk-1.5.0.08/jre/lib/i386/xawt/libmawt.so
7a9fc000-7a9ff000 rwxp 0002e000 03:05 22302085 /opt/sun-jdk-1.5.0.08/jre/lib/i386/xawt/libmawt.so
7a9ff000-7aa00000 rwxp 7a9ff000 00:00 0
7aa00000-7aac6000 r-xp 00000000 03:05 22302109 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libmlib_image.so
7aac6000-7aac7000 rwxp 000c5000 03:05 22302109 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libmlib_image.so
7aac7000-7ab7b000 r-xp 00000000 03:07 1929545 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libjogl.so
7ab7b000-7ab7c000 rwxp 000b4000 03:07 1929545 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libjogl.so
7ab7c000-7ab7d000 rwxs 00000000 00:07 12058637 /SYSV00000000 (deleted)
7ab7d000-7abbe000 rwxp 7ab7d000 00:00 0
7abbe000-7ac20000 rwxp 00000000 00:0d 1191 /dev/zero
7ac20000-7ac21000 rwxs 00000000 00:07 12025867 /SYSV00000000 (deleted)
7ac21000-7ad21000 rwxs e0114000 00:0d 11509 /dev/nvidia0
7ad21000-7ad22000 rwxs 2a675000 00:0d 11509 /dev/nvidia0
7ad22000-7ad23000 rwxs df97b000 00:0d 11509 /dev/nvidia0
7ad23000-7ad27000 rwxs 1b321000 00:0d 11509 /dev/nvidia0
7ad27000-7ad28000 rwxs 28a2e000 00:0d 11509 /dev/nvidia0
7ad28000-7ad29000 rwxs df97d000 00:0d 11509 /dev/nvidia0
7ad29000-7ad2a000 rwxs 23fb1000 00:0d 11509 /dev/nvidia0
7ad2a000-7ad2b000 rwxs 36702000 00:0d 11509 /dev/nvidia0
7ad2b000-7ad2c000 rwxs e8c02000 00:0d 11509 /dev/nvidia0
7ad2c000-7ae2e000 rwxs e0011000 00:0d 11509 /dev/nvidia0
7ae42000-7ae44000 r-xp 00000000 03:07 1763396 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libjogl_awt.so
7ae44000-7ae45000 rwxp 00001000 03:07 1763396 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libjogl_awt.so
7ae45000-7ae46000 r-xp 00000000 03:05 22302116 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libjawt.so
7ae46000-7ae47000 rwxp 00000000 03:05 22302116 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libjawt.so
7ae47000-7aea7000 r-xp 00000000 03:05 22302134 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libawt.so
7aea7000-7aead000 rwxp 0005f000 03:05 22302134 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libawt.so
7aead000-7aed1000 rwxp 7aead000 00:00 0
7aed1000-7aed2000 rwxs e8001000 00:0d 11509 /dev/nvidia0
7aed2000-7b670000 rwxs d0000000 00:0d 11509 /dev/nvidia0
7b670000-7b687000 rwxs 00000000 00:07 2097152 /SYSV00000000 (deleted)
7b687000-7b6ac000 r-xp 00000000 03:07 2854019 /data/home/gregor/software/qtjambi-linux-1.0.0-tp2/lib/libcom_trolltech_qt_opengl.so.1.0.0
7b6ac000-7b6ad000 rwxp 00025000 03:07 2854019 /data/home/gregor/software/qtjambi-linux-1.0.0-tp2/lib/libcom_trolltech_qt_opengl.so.1.0.0
7b6ad000-7b6af000 rwxp 00000000 00:0d 1191 /dev/zero
7b6af000-7be3e000 r-xp 00000000 03:05 22354863 /usr/lib/opengl/nvidia/lib/libGLcore.so.1.0.8774
7be3e000-7be6e000 rwxp 0078f000 03:05 22354863 /usr/lib/opengl/nvidia/lib/libGLcore.so.1.0.8774
7be6e000-7be72000 rwxp 7be6e000 00:00 0
7be72000-7bedd000 r-xp 00000000 03:05 22354856 /usr/lib/opengl/nvidia/lib/libGL.so.1.0.8774
7bedd000-7bef6000 rwxp 0006b000 03:05 22354856 /usr/lib/opengl/nvidia/lib/libGL.so.1.0.8774
7bef6000-7bef7000 rwxp 7bef6000 00:00 0
7bef7000-7bf74000 r-xp 00000000 03:05 22751733 /usr/lib/libGLU.so.1.3.060501
7bf74000-7bf75000 rwxp 0007d000 03:05 22751733 /usr/lib/libGLU.so.1.3.060501
7bf75000-7bfa2000 r-xp 00000000 03:07 2854025 /data/home/gregor/software/qtjambi-linux-1.0.0-tp2/lib/libQtOpenGL.so.4
7bfa2000-7bfa3000 rwxp 0002c000 03:07 2854025 /data/home/gregor/software/qtjambi-linux-1.0.0-tp2/lib/libQtOpenGL.so.4
7bfa3000-7bfa4000 rwxp 7bfa3000 00:00 0
7bfa4000-7bff2000 r-xp 00000000 03:07 2010567 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafraycore.so
7bff2000-7bff9000 rwxp 0004d000 03:07 2010567 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafraycore.so
7bff9000-7bffa000 rwxp 7bff9000 00:00 0
7bffa000-7c01b000 r-xp 00000000 03:07 2010568 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafrayplugin.so
7c01b000-7c01c000 rwxp 00020000 03:07 2010568 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafrayplugin.so
7c01c000-7c041000 r-xp 00000000 03:07 1929582 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafrayJava.so
7c041000-7c042000 rwxp 00024000 03:07 1929582 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libyafrayJava.so
7c042000-7c116000 r-xp 00000000 03:05 18311473 /usr/lib/gcc-lib/i686-pc-linux-gnu/4.1.0/libstdc++.so.6.0.7
7c116000-7c11a000 r-xp 000d4000 03:05 18311473 /usr/lib/gcc-lib/i686-pc-linux-gnu/4.1.0/libstdc++.so.6.0.7
7c11a000-7c11b000 rwxp 000d8000 03:05 18311473 /usr/lib/gcc-lib/i686-pc-linux-gnu/4.1.0/libstdc++.so.6.0.7
7c11b000-7c121000 rwxp 7c11b000 00:00 0
7c121000-7c122000 r-xp 00000000 03:05 22354905 /usr/lib/opengl/nvidia/tls/libnvidia-tls.so.1.0.8774
7c122000-7c123000 rwxp 00000000 03:05 22354905 /usr/lib/opengl/nvidia/tls/libnvidia-tls.so.1.0.8774
7c123000-7c127000 r-xp 00000000 03:05 15728435 /usr/lib/libImath.so.2.0.2
7c127000-7c128000 rwxp 00004000 03:05 15728435 /usr/lib/libImath.so.2.0.2
7c128000-7c14e000 r-xp 00000000 03:05 21276538 /usr/lib/libpng.so.3.12.0
7c14e000-7c14f000 rwxp 00025000 03:05 21276538 /usr/lib/libpng.so.3.12.0
7c14f000-7c152000 r-xp 00000000 03:07 1604324 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libpng-java.so
7c152000-7c153000 rwxp 00002000 03:07 1604324 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libpng-java.so
7c153000-7c195000 r-xp 00000000 03:05 15728358 /usr/lib/libHalf.so.2.0.2
7c195000-7c196000 rwxp 00041000 03:05 15728358 /usr/lib/libHalf.so.2.0.2
7c196000-7c1a9000 r-xp 00000000 03:05 15728368 /usr/lib/libIex.so.2.0.2
7c1a9000-7c1ab000 rwxp 00012000 03:05 15728368 /usr/lib/libIex.so.2.0.2
7c1ab000-7c228000 r-xp 00000000 03:05 15728379 /usr/lib/libIlmImf.so.2.0.2
7c228000-7c22a000 rwxp 0007d000 03:05 15728379 /usr/lib/libIlmImf.so.2.0.2
7c22a000-7c22d000 r-xp 00000000 03:07 1752954 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libopenexr-java.so
7c22d000-7c22e000 rwxp 00002000 03:07 1752954 /data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686/libopenexr-java.so
7c22e000-7c231000 ---p 7c22e000 00:00 0
7c231000-7c2af000 rwxp 7c231000 00:00 0
7c2af000-7c2b1000 r-xs 00000000 03:07 2358772 /data/home/gregor/progs/Moonlight/workspace/ml.plugins.file.freert/plugins/ml.plugins.file.freert.jar
7c2b1000-7c2b3000 r-xs 00000000 03:07 2139449 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.images.viewer.jar
7c2b3000-7c2b4000 r-xs 00000000 03:07 2139448 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.images.png.jar
7c2b4000-7c2b5000 r-xs 00000000 03:07 2139447 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.images.openexr.jar
7c2b5000-7c2ba000 r-xs 00000000 03:07 2139456 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.textures.jar
7c2ba000-7c2c0000 r-xs 00000000 03:07 2139455 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.objects.jar
7c2c0000-7c2da000 r-xs 00000000 03:07 2139454 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.mesh.jar
7c2da000-7c2dc000 r-xs 00000000 03:07 2370044 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.map.jar
7c2dc000-7c2df000 r-xs 00000000 03:07 2139453 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.lighting.jar
7c2df000-7c2e2000 r-xs 00000000 03:07 2139452 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.camera.jar
7c2e2000-7c2e3000 r-xs 00000000 03:07 2139451 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.basicselectiontypes.jar
7c2e3000-7c2e4000 r-xs 00000000 03:07 2139450 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.modelling.basic.jar
7c2e4000-7c2e9000 r-xs 00000000 03:07 2139474 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.ui.widgets.jar
7c2e9000-7c2f5000 r-xs 00000000 03:07 2139473 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.ui.view.jar
7c2f5000-7c2f9000 r-xs 00000000 03:07 2139472 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.ui.toolchest.jar
7c2f9000-7c2fb000 r-xs 00000000 03:07 2139471 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.ui.testplugin.jar
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b79ed000-b7e04000 rwxp b79ed000 00:00 0
b7e04000-b7f19000 r-xp 00000000 03:05 20229756 /lib/libc-2.4.so
b7f19000-b7f1c000 r-xp 00114000 03:05 20229756 /lib/libc-2.4.so
b7f1c000-b7f1d000 rwxp 00117000 03:05 20229756 /lib/libc-2.4.so
b7f1d000-b7f20000 rwxp b7f1d000 00:00 0
b7f20000-b7f22000 r-xp 00000000 03:05 20230569 /lib/libdl-2.4.so
b7f22000-b7f23000 r-xp 00001000 03:05 20230569 /lib/libdl-2.4.so
b7f23000-b7f24000 rwxp 00002000 03:05 20230569 /lib/libdl-2.4.so
b7f24000-b7f33000 r-xp 00000000 03:05 20230995 /lib/libpthread-2.4.so
b7f33000-b7f34000 r-xp 0000e000 03:05 20230995 /lib/libpthread-2.4.so
b7f34000-b7f35000 rwxp 0000f000 03:05 20230995 /lib/libpthread-2.4.so
b7f35000-b7f37000 rwxp b7f35000 00:00 0
b7f37000-b7f38000 r-xs 00000000 03:07 2139221 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.file.importfile.jar
b7f38000-b7f39000 r-xs 00000000 03:07 2139214 /data/home/gregor/progs/Moonlight/workspace/Moonlight/plugins/ml.plugins.file.exportfile.jar
b7f39000-b7f3c000 r-xp 00000000 03:05 17268441 /usr/lib/libXrandr.so.2.0.0
b7f3c000-b7f3d000 rwxp 00002000 03:05 17268441 /usr/lib/libXrandr.so.2.0.0
b7f3d000-b7f3f000 r-xs 00000000 03:05 22302079 /opt/sun-jdk-1.5.0.08/jre/lib/ext/dnsns.jar
b7f3f000-b7f43000 r-xp 00000000 03:05 22302125 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libdt_socket.so
b7f43000-b7f44000 rwxp 00003000 03:05 22302125 /opt/sun-jdk-1.5.0.08/jre/lib/i386/libdt_socket.so
b7f44000-b7f4c000 r-xp 00000000 03:05 20231016 /lib/libnss_files-2.4.so
b7f4c000-b7f4d000 r-xp 00007000 03:05 20231016 /lib/libnss_files-2.4.so
b7f4d000-b7f4e000 rwxp 00008000 03:05 20231016 /lib/libnss_files-2.4.so
b7f4e000-b7f56000 r-xp 00000000 03:05 20231156 /lib/libnss_nis-2.4.so
b7f56000-b7f57000 r-xp 00007000 03:05 20231156 /lib/libnss_nis-2.4.so
b7f57000-b7f58000 rwxp 00008000 03:05 20231156 /lib/libnss_nis-2.4.so
b7f58000-b7f5e000 r-xp 00000000 03:05 20231160 /lib/libnss_compat-2.4.so
b7f5e000-b7f5f000 r-xp 00005000 03:05 20231160 /lib/libnss_compat-2.4.so
b7f5f000-b7f60000 rwxp 00006000 03:05 20231160 /lib/libnss_compat-2.4.so
b7f60000-b7f66000 r-xp 00000000 03:05 22302101 /opt/sun-jdk-1.5.0.08/jre/lib/i386/native_threads/libhpi.so
b7f66000-b7f67000 rwxp 00006000 03:05 22302101 /opt/sun-jdk-1.5.0.08/jre/lib/i386/native_threads/libhpi.so
b7f67000-b7f68000 rwxp b7f67000 00:00 0
b7f68000-b7f69000 r-xp b7f68000 00:00 0
b7f69000-b7f6a000 rwxp b7f69000 00:00 0
b7f6a000-b7f84000 r-xp 00000000 03:05 20231189 /lib/ld-2.4.so
b7f84000-b7f85000 r-xp 00019000 03:05 20231189 /lib/ld-2.4.so
b7f85000-b7f86000 rwxp 0001a000 03:05 20231189 /lib/ld-2.4.so
bfd26000-bfd29000 ---p bfd26000 00:00 0
bfd29000-bff26000 rwxp bfd29000 00:00 0 [stack]
ffffe000-fffff000 ---p 00000000 00:00 0 [vdso]
VM Arguments:
jvm_args: -Djava.library.path=/data/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686:/home/gregor/software/qtjambi-linux-1.0.0-tp2/lib -Xmx768m -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:60834
java_command: ml.ML3D
Launcher Type: SUN_STANDARD
Environment Variables:
JAVA_HOME=/opt/sun-jdk-1.5.0.06
CLASSPATH=.
PATH=/opt/sun-jdk-1.5.0.06/bin:/opt/sun-jdk-1.5.0.06/jre/bin:/opt/sun-jdk-1.5.0.06/bin:/opt/sun-jdk-1.5.0.06/jre/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/i686-pc-linux-gnu/gcc-bin/4.1.0:/opt/blackdown-jdk-1.4.2.03/bin:/opt/blackdown-jdk-1.4.2.03/jre/bin:/usr/kde/3.5/bin:/usr/qt/3/bin:/usr/games/bin
LD_LIBRARY_PATH=/opt/sun-jdk-1.5.0.08/jre/lib/i386/client:/opt/sun-jdk-1.5.0.08/jre/lib/i386:/opt/sun-jdk-1.5.0.08/jre/../lib/i386:/usr/lib/opengl/nvidia/lib:/usr/lib:/home/gregor/progs/Moonlight/workspace/Moonlight/lib/Linux/i686::/usr/lib/mozilla-firefox
SHELL=/bin/bash
DISPLAY=:0
Signal Handlers:
SIGSEGV: [libjvm.so+0x325bd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGBUS: [libjvm.so+0x325bd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGFPE: [libjvm.so+0x28a010], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGPIPE: [libjvm.so+0x28a010], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGILL: [libjvm.so+0x28a010], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: [libjvm.so+0x28c460], sa_mask[0]=0x00000004, sa_flags=0x10000004
SIGHUP: [libjvm.so+0x28be90], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGINT: [libjvm.so+0x28be90], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGQUIT: [libjvm.so+0x28be90], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGTERM: [libjvm.so+0x28be90], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
--------------- S Y S T E M ---------------
OS:Gentoo Base System version 1.12.5
uname:Linux 2.6.17.7 #1 Sun Aug 6 21:31:07 CEST 2006 i686
libc:glibc 2.4 NPTL 2.4
rlimit: STACK 8192k, CORE 0k, NPROC 8191, NOFILE 1024, AS infinity
load average:0.88 0.62 0.48
CPU:total 1 (cores per cpu 1, threads per core 1) family 6 model 6 stepping 2, cmov, cx8, fxsr, mmx, sse, mmxext, 3dnowext, 3dnow
Memory: 4k page, physical 1036612k(15692k free), swap 3004112k(2628804k free)
vm_info: Java HotSpot(TM) Client VM (1.5.0_08-b03) for linux-x86, built on Jul 11 2006 09:55:52 by java_re with gcc 3.2.1-7a (J2SE release)
Message 2 in thread
Gregor Mückl wrote:
>I've produced a VM crash when trying to assign a QGLContext with a null
>QPaintDevice to a QGLWidget in its constructor. In that case the VM crashes
>with the log I've appended. Since the crash seems to be in
>QGLContext::isValid() I blatantly assume that this a bug in Qt (never ever
>crash the Java VM hard, no matter what).
>
>
Hi, Gregor!
I agree, and we consider any VM crash a critical bug. Your particular
case seems related to a known issue on Mac OS X. Is your platform Mac,
by any chance? If so, the bug will be fixed in the next version of Qt Jambi.
>My second issue may be more obscure in nature, but it is important. I want to
>create a QGLContext with a certain format, so I need to create that object
>and pass it to a QGLWidget. However, the QGLContext wants a QPaintDevice as
>second argument to its constructor. Now what should that be? In Java I cannot
>come up with a way to initialise that in a way that has the QGLWidget as a
>paint device for the QGLContext. I'm a bit confused here. What would you
>suggest?
>
>
Are you subclassing QGLContext in your code? If not, and you only need
to set a special format on your OpenGL widgets, you should be able to
use the QGLFormat.setDefaultFormat() method. This will set the format
chosen as default for any widgets you create, thus you will not need to
create your own OpenGL context in your code.
Is this an acceptable work around for you?
>OT: I'm porting a program from SWT to Qt here and I find that the program
>sourcecode is getting shorter and shorter with every piece I convert. I must
>say that I'm really happy to see the level of maturity and completeness in Qt
>that SWT still lacks and which forced me to work around lots of limitations
>
>
>
I'm very glad to hear that :-)
Please don't hesitate to post again if you have any more questions,
comments or issues!
-- Eskil
Message 3 in thread
[I sent this one to Eskil Blomfeldt in private at first by mistake. Sorry.]
> Gregor Mückl wrote:
>
> >I've produced a VM crash when trying to assign a QGLContext with a null
> >QPaintDevice to a QGLWidget in its constructor. In that case the VM
> crashes
> >with the log I've appended. Since the crash seems to be in
> >QGLContext::isValid() I blatantly assume that this a bug in Qt (never
> ever
> >crash the Java VM hard, no matter what).
> >
> >
>
> Hi, Gregor!
>
> I agree, and we consider any VM crash a critical bug. Your particular
> case seems related to a known issue on Mac OS X. Is your platform Mac,
> by any chance? If so, the bug will be fixed in the next version of Qt
> Jambi.
>
Hi, Eskil!
Unfortunately this happened on Linux. I forgot to mention that in the first mail, sorry.
> >My second issue may be more obscure in nature, but it is important. I
> want to
> >create a QGLContext with a certain format, so I need to create that
> object
> >and pass it to a QGLWidget. However, the QGLContext wants a QPaintDevice
> as
> >second argument to its constructor. Now what should that be? In Java I
> cannot
> >come up with a way to initialise that in a way that has the QGLWidget as
> a
> >paint device for the QGLContext. I'm a bit confused here. What would you
> >suggest?
> >
> >
>
> Are you subclassing QGLContext in your code? If not, and you only need
> to set a special format on your OpenGL widgets, you should be able to
> use the QGLFormat.setDefaultFormat() method. This will set the format
> chosen as default for any widgets you create, thus you will not need to
> create your own OpenGL context in your code.
>
> Is this an acceptable work around for you?
>
I can't try that one out immediately, but I think that I can make this work.
This leaves me with one other question: By default I'd like to request a multisampling buffer, but because multisampling support is a more recent hardware feature I need a fallback here. In what order does Qt relax these requirements on its own?
And is the only way to check the capabilities of the OpenGL implementation to create a GL context and check the actually present context format?
> -- Eskil
Gregor
--
[ signature omitted ]
Message 4 in thread
Gregor Mückl wrote:
> I can't try that one out immediately, but I think that I can make
> this work.
>
> This leaves me with one other question: By default I'd like to
> request a multisampling buffer, but because multisampling support is
> a more recent hardware feature I need a fallback here. In what order
> does Qt relax these requirements on its own?
Hi Gregor,
Qt will try first with the format specified, but if this format is not
supported, Qt will try reduce the requirement set until it finds a
format that works. You can query for the QGLContexts format and match it
against the one you specified to see what was supported or not.
> And is the only way to check the capabilities of the OpenGL
> implementation to create a GL context and check the actually present
> context format?
Yes, this is the only way.
best regards,
Gunnar
Message 5 in thread
Hello!
I found a Java VM Crash under Linux if I use a QTableWidget like in the attached
TableWidgetWindow.java file. All I am doing is creating a new QStringListModel,
inserting a Row and adding it to a QTableWidget object, like this:
QStringListModel model = new QStringListModel();
model.insertRow(0);
w.tableWidget.setModel(model);
Now the QTableWidget has an empty row when it is shown. If I click into this
empty row then I get a Java VM crash:
#
# An unexpected error has been detected by HotSpot Virtual Machine:
#
# SIGSEGV (0xb) at pc=0xb1f9ddf9, pid=3701, tid=3084740288
#
# Java VM: Java HotSpot(TM) Client VM (1.5.0_08-b03 mixed mode, sharing)
# Problematic frame:
# C [libQtGui.so.4+0x480df9] _ZNK11QTableModel7isValidERK11QModelIndex+0x29
#
# An error report file with more information is saved as hs_err_pid3701.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
Am I doing anything strange, with the code above?
Regards,
Chinu
import com.trolltech.qt.gui.QApplication;
import com.trolltech.qt.gui.QApplication;
import com.trolltech.qt.gui.QMainWindow;
import com.trolltech.qt.gui.QStringListModel;
public class TableWidgetWindow extends QMainWindow {
Ui_TableWidget w;
public TableWidgetWindow() {
w = new Ui_TableWidget();
w.setupUi(this);
QStringListModel model = new QStringListModel();
model.insertRow(0);
w.tableWidget.setModel(model);
}
public static void main(String[] args){
QApplication.initialize(args);
TableWidgetWindow window = new TableWidgetWindow();
window.show();
QApplication.exec();
}
}
import com.trolltech.qt.core.*;
import com.trolltech.qt.core.*;
import com.trolltech.qt.gui.*;
public class Ui_TableWidget
{
public QWidget centralwidget;
public QTableWidget tableWidget;
public QMenuBar menubar;
public QStatusBar statusbar;
public Ui_TableWidget() { super(); }
public void setupUi(QMainWindow TableWidget)
{
TableWidget.setObjectName("TableWidget");
TableWidget.resize(new QSize(499, 330).expandedTo(TableWidget.minimumSizeHint()));
centralwidget = new QWidget(TableWidget);
centralwidget.setObjectName("centralwidget");
tableWidget = new QTableWidget(centralwidget);
tableWidget.setObjectName("tableWidget");
tableWidget.setGeometry(new QRect(70, 20, 311, 211));
TableWidget.setCentralWidget(centralwidget);
menubar = new QMenuBar(TableWidget);
menubar.setObjectName("menubar");
menubar.setGeometry(new QRect(0, 0, 499, 28));
TableWidget.setMenuBar(menubar);
statusbar = new QStatusBar(TableWidget);
statusbar.setObjectName("statusbar");
TableWidget.setStatusBar(statusbar);
retranslateUi(TableWidget);
com.trolltech.qt.QtJambiUtils.connectSlotsByName(TableWidget);
} // setupUi
void retranslateUi(QMainWindow TableWidget)
{
TableWidget.setWindowTitle("MainWindow");
tableWidget.clear();
tableWidget.setColumnCount(0);
tableWidget.setRowCount(0);
} // retranslateUi
}
Message 6 in thread
Chinu wrote:
>Hello!
>
>I found a Java VM Crash under Linux if I use a QTableWidget like in the attached
>TableWidgetWindow.java file. All I am doing is creating a new QStringListModel,
>inserting a Row and adding it to a QTableWidget object, like this:
>
>QStringListModel model = new QStringListModel();
>model.insertRow(0);
>w.tableWidget.setModel(model);
>
>
Hi, Chinu!
In the case of this code it is a bug that you are not getting an
exception on the call to QTableWidget.setModel(), as QTableWidget is a
convenience class which does not allow you to change its model.
What you want instead is the QTableView class. Edit your .ui file and
replace the table widget with a table view and your code should work fine.
Thank you for reporting this bug!
-- Eskil
Message 7 in thread
Gregor Mückl wrote:
>>Are you subclassing QGLContext in your code? If not, and you only need
>>to set a special format on your OpenGL widgets, you should be able to
>>use the QGLFormat.setDefaultFormat() method. This will set the format
>>chosen as default for any widgets you create, thus you will not need to
>>create your own OpenGL context in your code.
>>
>>Is this an acceptable work around for you?
>>
>>
>>
>
>I can't try that one out immediately, but I think that I can make this work.
>
>
Hi, Gregor.
I investigated this a little bit more, and a impler work around might be
to call the constructor QGLContext(QGLFormat) instead.
Like this:
QGLContext myContext = new QGLContext(myFormat);
Internally, this will pass null as the device, but it should avoid your
crash bug.
best regards
-- Eskil
