[Development] New SceneGraph related issue

Tomasz Olszak olszak.tomasz at gmail.com
Thu Sep 12 16:45:10 CEST 2013


2013/9/12 Sletta Gunnar <Gunnar.Sletta at digia.com>

>
> On Sep 11, 2013, at 11:12 PM, Tomasz Olszak <olszak.tomasz at gmail.com>
> wrote:
>
> > Hi,
> > I have strange issue running most recent Qt sources on Tizen emulator
> (qemu i586).
> > Also I know that there are issues with supporting HW acceleration. For
> example I need to export QML_BAD_GUI_RENDER_LOOP=1 because multithreaded
> OpenGl is a little broken there.
> >
> > Anyway:
> > When I run simple Qml App (ApplicationWindow with rectangle) I get:
> >
> > >>>>
> > QtHelloWorld: client_gl.c:1585: glGetBufferSubDataARB: Assertion `offset
> + size <= buffer->size' failed.
>
> do you have the rest of the stack trace? Though I suspect it would be
> coming from the glDrawElements call in renderMergedBatches.
>
> I will get and send the stacktrace soon, It was difficult to get because
of SMACK configuration.


> > Aborted (core dumped)
> >
> >
> > after setting (noopaque is significant because it prevents app from
> crash)
> >
> QSG_RENDERER_DEBUG=render,build,change,upload,rootfs,dump,noalpha,noopaque,noclip
>
> setting noopaque means for this example that you are not drawing anything,
> so it greatly reduces the stuff that the renderer does :)
>
> Ok :)

Thanks. I will be back with more gdb output.

-- 
regards / pozdrawiam, Tomasz Olszak
Qt for Tizen | http://qt-project.org/wiki/Tizen
Qt Certified Developer | http://qt-project.org
http://linkedin.com/in/tolszak
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