[Marble-devel] Using Marble library with Qt Embedded
jeremie.scheer at armadeus.com
Wed May 23 13:36:58 UTC 2012
Thank you for your answer.
Unfortunately it doesn't seem to be the plugins that cause the thread issue.
I tried what you suggested me to do but I always run into the same error
It is the same error that makes my application crash in a Qt Virtual
Framebuffer or on ARM platform.
Tel: +33 (0)9 72 29 41 44
Fax: +33 (0)9 72 28 79 26
Armadeus Systems - A new vision of the embedded world
On 05/23/2012 01:25 PM, Dennis Nienhüser wrote:
> I started looking into it yesterday but Qt Embedded wasn't compiling
> on my system due to some known bug where glib and webkit interfere.
> I'd suggest trying to move all marble plugins away first (just remove
> them from lib/marble/plugins in the installation directory of marble)
> and see if that changes things. Might be some threading issue, the
> parser plugins working on startup for example run in their own thread
> Am 23.05.2012 11:12, schrieb Jeremie Scheer:
>> Any idea ?
>> Is it simply possible to use Marble in a Qt Virtual Framebuffer with
>> Qt Embedded ?
>> I think it should be, because I found this link on the Internet
>> http://wm161.net/2008/07/26/marble-under-qtembedded-linux/ . A little
>> bit old but it shows that Marble could run under Qt Embedded.
>> I can't see what is the origin of the bug because I've no QThread or
>> QMutex in my application. It can only come from the compilation of
>> My Qt Embedded is configured like this:
>> configure -embedded x86_64 -no-cups -no-nis -depths 16,18 -qvfb
>> -prefix /usr/local/Trolltech/QtEmbedded-4.7.2 -glib
>> -confirm-license -qt-sql-sqlite
>> And I configure Marble to build against Qt like this:
>> PATH=/usr/local/Trolltech/QtEmbedded-4.7.2/bin:$PATH cmake
>> -DQTONLY=ON ../marble_qvfb/
>> Jérémie SCHEER
>> On 05/22/2012 04:13 PM, Jeremie Scheer wrote:
>>> I'm currently trying to use a Marble library built against _Qt 4.7.4
>>> Embedded x86_.
>>> My application using Marble is built against the same Qt and is
>>> running in a Qt Virtual Framebuffer with a QWS Server.
>>> In the Qt project file, I simply added : /LIBS = -lmarblewidget/ to
>>> link with Marble. And when running the application, I defined the
>>> environment variable /LD_LIBRARY_PATH=/usr/local/lib/ where Marble
>>> libraries are installed.
>>> The problem is : when I run the application, before any instruction
>>> can be executed, it crashes on :
>>> QMutex::lock: Deadlock detected in thread 0x7f1fe30bb740
>>> Here is my application code :
>>> #include <QtGui/QApplication>
>>> #include <marble/MarbleWidget.h>
>>> #include <marble/MarbleModel.h>
>>> #include <marble/global.h>
>>> #include <QWSServer>
>>> using namespace Marble;
>>> int main(int argc, char** argv)
>>> QApplication app(argc,argv);
>>> QWSServer *sw = QWSServer::instance ();
>>> // Create a Marble QWidget without a parent
>>> MarbleWidget *mapWidget = new MarbleWidget();
>>> // Load the OpenStreetMap map
>>> return app.exec();
>>> If I build the same application (without the QWS Server) and Marble
>>> against Qt x86, it works well.
>>> Is there anything I did wrong with Qt Embedded ?
>>> Jérémie Scheer
>>> Software Engineer
>>> Tel: +33 (0)9 72 29 41 44
>>> Fax: +33 (0)9 72 28 79 26
>>> ARMadeus Systems - A new vision of the embedded world
>>> Marble-devel mailing list
>>> Marble-devel at kde.org
>> Jérémie Scheer
>> Software Engineer
>> Tel: +33 (0)9 72 29 41 44
>> Fax: +33 (0)9 72 28 79 26
>> ARMadeus Systems - A new vision of the embedded world
>> Marble-devel mailing list
>> Marble-devel at kde.org
> Marble-devel mailing list
> Marble-devel at kde.org
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